/* roulang page: index */
:root{
  --ink:#16375E;
  --ink-deep:#0E2745;
  --ink-soft:#2A4E7A;
  --orange:#E2542C;
  --orange-deep:#C8461F;
  --green:#1F8A70;
  --bg:#F7F5F1;
  --surface:#FFFFFF;
  --gray:#EEF1F5;
  --text:#101C2C;
  --text-2:#4A5A6E;
  --text-3:#7C8A9C;
  --inverse:#F7F5F1;
  --border:#E3E7EC;
  --line:#EDEFF2;
  --r-card:16px;
  --r-lg:24px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-sm:0 1px 2px rgba(16,28,44,.06);
  --sh-md:0 8px 24px -12px rgba(16,28,44,.18);
  --sh-lg:0 18px 40px -18px rgba(16,28,44,.24);
  --ease:cubic-bezier(.4,0,.2,1);
  --nav-h:76px;
  --bs-primary:#16375E;
  --bs-body-font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  padding-bottom:0;
  overflow-x:hidden;
}
body.is-stuck{--nav-h:64px}
body.no-scroll{overflow:hidden}
h1,h2,h3,h4,h5,h6,p,ul,ol,figure{margin:0}
h1,h2,h3,h4{color:var(--ink);font-weight:700;letter-spacing:-.2px}
ul,ol{padding:0;list-style:none}
a{color:var(--ink);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--orange)}
img{max-width:100%;display:block}
button{font-family:inherit}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(226,84,44,.28);border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
.section{padding:96px 0;scroll-margin-top:calc(var(--nav-h) + 70px)}
.section-alt{background:var(--surface)}
.section-gray{background:var(--gray)}
.section-head{max-width:720px;margin-bottom:48px}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--orange);text-transform:uppercase;margin-bottom:14px;
}
.section-head h2{font-size:32px;line-height:1.3;font-weight:650;margin-bottom:14px}
.section-head p{color:var(--text-2);font-size:16px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}

/* 品牌与导航 */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:900;
  height:var(--nav-h);
  display:flex;align-items:center;
  background:rgba(247,245,241,.55);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(22,55,94,.08);
  box-shadow:0 8px 24px -16px rgba(16,28,44,.35);
  transition:height .24s var(--ease),background .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-stuck{
  background:rgba(255,255,255,.94);
  box-shadow:var(--sh-md);
  border-bottom-color:rgba(22,55,94,.14);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:linear-gradient(150deg,var(--ink) 0%,var(--ink-deep) 100%);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-sm);
}
.brand-mark svg{width:21px;height:21px;display:block}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:17px;font-weight:600;color:var(--ink);letter-spacing:-.2px}
.brand-text em{font-size:12px;font-style:normal;font-weight:400;color:var(--text-3);margin-top:2px}
.main-nav{display:flex;align-items:center;gap:20px}
.main-nav a{
  position:relative;font-size:15px;font-weight:500;color:var(--text-2);
  padding:6px 0;white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--orange);border-radius:2px;transform:scaleX(0);
  transform-origin:left center;transition:transform .22s var(--ease);
}
.main-nav a:hover{color:var(--ink)}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav a.is-active{color:var(--ink);font-weight:600}
.main-nav a.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-pill);
  border:1px solid var(--border);background:rgba(255,255,255,.7);
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  color:var(--text-2);transition:all .2s var(--ease);
}
.icon-btn:hover{color:var(--ink);border-color:rgba(22,55,94,.24);background:#fff;transform:translateY(-1px)}
.icon-btn svg{width:19px;height:19px}
.burger{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--border);
  background:rgba(255,255,255,.8);cursor:pointer;padding:0;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.burger span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:all .22s var(--ease)}
.burger.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0}
.burger.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.drawer-cta{display:none}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1.2;
  padding:14px 26px;border-radius:var(--r-btn);
  border:1.5px solid transparent;cursor:pointer;text-decoration:none;
  transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-primary{background:var(--orange);border-color:var(--orange);color:#fff}
.btn-primary:hover{background:var(--orange-deep);border-color:var(--orange-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-lg)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:rgba(22,55,94,.06);color:var(--ink-deep);transform:translateY(-2px)}
.btn-light{background:#fff;border-color:#fff;color:var(--ink)}
.btn-light:hover{background:#F1EEE8;border-color:#F1EEE8;color:var(--ink-deep);transform:translateY(-2px);box-shadow:var(--sh-lg)}
.btn-outline-light{background:transparent;border-color:rgba(247,245,241,.6);color:var(--inverse)}
.btn-outline-light:hover{background:rgba(247,245,241,.12);border-color:var(--inverse);color:#fff;transform:translateY(-2px)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--ink);font-weight:600;font-size:15px}
.link-arrow svg{width:16px;height:16px;transition:transform .2s var(--ease)}
.link-arrow:hover{color:var(--orange)}
.link-arrow:hover svg{transform:translateX(4px)}

/* 徽章与标签 */
.pill{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(226,84,44,.10);color:#A83D1B;
  font-size:12px;font-weight:600;padding:5px 12px;border-radius:var(--r-pill);
  letter-spacing:.02em;
}
.pill-green{background:rgba(31,138,112,.12);color:#146351}
.badge-cat{
  display:inline-block;background:rgba(22,55,94,.08);color:var(--ink);
  font-size:12px;font-weight:600;padding:4px 12px;border-radius:var(--r-pill);
}

/* Hero */
.hero{
  position:relative;
  padding-top:calc(var(--nav-h) + 68px);
  padding-bottom:88px;
  overflow:hidden;
  background:
    radial-gradient(900px 460px at 88% -8%,rgba(226,84,44,.10),transparent 62%),
    radial-gradient(700px 420px at -6% 20%,rgba(22,55,94,.07),transparent 60%),
    var(--bg);
}
.hero-deco{
  position:absolute;right:-160px;top:-120px;width:560px;height:560px;
  border:1px solid rgba(22,55,94,.10);border-radius:50%;opacity:.6;pointer-events:none;
}
.hero-deco::after{
  content:"";position:absolute;inset:70px;border:1px solid rgba(226,84,44,.12);border-radius:50%;
}
.hero-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center;position:relative;z-index:1}
.hero-copy h1{font-size:clamp(28px,4.2vw,46px);line-height:1.18;font-weight:700;letter-spacing:-.5px;margin:18px 0 20px}
.hero-sub{font-size:17px;color:var(--text-2);max-width:520px;line-height:1.8}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin:32px 0 36px}
.hero-stats{display:flex;flex-wrap:wrap;border-top:1px solid var(--border);padding-top:24px}
.hero-stat{padding:0 26px;border-left:1px solid var(--border)}
.hero-stat:first-child{padding-left:0;border-left:none}
.hero-stat strong{
  display:block;font-size:28px;font-weight:700;color:var(--ink);
  font-variant-numeric:tabular-nums;line-height:1.2;letter-spacing:-.5px;
}
.hero-stat strong em{font-style:normal;font-size:14px;font-weight:600;color:var(--text-3);margin-left:3px}
.hero-stat span{font-size:13px;color:var(--text-3)}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:20px;box-shadow:var(--sh-lg);position:relative;z-index:2;
}
.hero-plate{
  position:absolute;left:-28px;bottom:-28px;width:62%;height:150px;
  background:rgba(226,84,44,.10);border-radius:20px;z-index:1;
}
.hero-note{
  position:absolute;right:16px;bottom:-18px;z-index:3;
  background:#fff;border:1px solid var(--border);border-radius:14px;
  box-shadow:var(--sh-md);padding:12px 18px;display:flex;align-items:center;gap:10px;
}
.hero-note svg{width:20px;height:20px;color:var(--green)}
.hero-note span{font-size:13px;font-weight:600;color:var(--ink)}

/* 锚点分区条 */
.subnav{
  position:sticky;top:var(--nav-h);z-index:800;
  background:rgba(255,255,255,.94);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  transition:top .24s var(--ease);
}
.subnav-inner{display:flex;gap:28px;overflow-x:auto;scrollbar-width:none;padding:0 24px;max-width:1200px;margin:0 auto}
.subnav-inner::-webkit-scrollbar{display:none}
.subnav-link{
  position:relative;flex-shrink:0;padding:15px 0;font-size:14px;font-weight:500;
  color:var(--text-3);white-space:nowrap;
}
.subnav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--orange);
  border-radius:2px;transform:scaleX(0);transform-origin:left center;transition:transform .22s var(--ease);
}
.subnav-link:hover{color:var(--ink)}
.subnav-link.is-active{color:var(--ink);font-weight:600}
.subnav-link.is-active::after{transform:scaleX(1)}

/* 卡片 */
.card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-md);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
@media (hover:hover){
  .card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);border-color:rgba(22,55,94,.18)}
}

/* 卖点区 1+3 */
.feature-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:24px;align-items:stretch}
.feature-main{display:flex;flex-direction:column;padding:28px}
.feature-main img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:12px;margin-bottom:22px}
.feature-main h3{font-size:22px;margin-bottom:12px}
.feature-main p{color:var(--text-2);font-size:15px;margin-bottom:18px}
.tick-list{display:flex;flex-direction:column;gap:10px}
.tick-list li{position:relative;padding-left:26px;font-size:15px;color:var(--text-2);line-height:1.7}
.tick-list li::before{
  content:"";position:absolute;left:0;top:8px;width:14px;height:14px;border-radius:50%;
  background:rgba(31,138,112,.14);
  box-shadow:inset 0 0 0 2px var(--green);
}
.feature-side{display:grid;grid-template-rows:repeat(3,1fr);gap:24px}
.feature-row{display:flex;gap:18px;align-items:flex-start;padding:22px 24px}
.feature-icon{
  flex-shrink:0;width:44px;height:44px;border-radius:12px;
  background:rgba(22,55,94,.07);color:var(--ink);
  display:inline-flex;align-items:center;justify-content:center;
}
.feature-icon svg{width:22px;height:22px}
.feature-row h3{font-size:17px;margin-bottom:6px}
.feature-row p{font-size:14px;color:var(--text-2);line-height:1.7}

/* 演示区 */
.demo-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.demo-media{position:relative}
.demo-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--sh-lg)}
.demo-media::before{
  content:"";position:absolute;left:-20px;top:-20px;width:120px;height:120px;
  border-radius:18px;background:rgba(31,138,112,.10);z-index:-1;
}
.demo-copy h2{font-size:32px;line-height:1.3;margin-bottom:14px}
.demo-copy > p{color:var(--text-2);margin-bottom:26px}
.demo-tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px}
.demo-tab{
  border:1px solid var(--border);background:#fff;color:var(--text-2);
  border-radius:var(--r-pill);padding:9px 18px;font-size:14px;font-weight:500;cursor:pointer;
  transition:all .2s var(--ease);
}
.demo-tab:hover{border-color:rgba(22,55,94,.24);color:var(--ink)}
.demo-tab.is-active{background:var(--ink);border-color:var(--ink);color:#fff;font-weight:600}
.demo-panel{display:none}
.demo-panel.is-active{display:block;animation:fadeUp .28s var(--ease)}
@keyframes fadeUp{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}
.demo-panel h3{font-size:19px;margin-bottom:10px}
.demo-panel p{font-size:15px;color:var(--text-2)}
.steps{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  margin-top:64px;padding-top:40px;border-top:1px dashed #D7DCE3;
}
.step{position:relative;padding-right:24px}
.step-num{
  width:34px;height:34px;border-radius:50%;background:rgba(22,55,94,.08);
  color:var(--ink);font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;
  display:inline-flex;align-items:center;justify-content:center;margin-bottom:14px;
}
.step h4{font-size:16px;margin-bottom:6px}
.step p{font-size:14px;color:var(--text-2);line-height:1.7}

/* 证据区 */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-bottom:56px}
.metric{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh-sm);
}
.metric strong{
  display:block;font-size:34px;font-weight:700;color:var(--ink);
  font-variant-numeric:tabular-nums;line-height:1.15;letter-spacing:-1px;
}
.metric strong em{font-style:normal;font-size:15px;color:var(--orange);font-weight:700;margin-left:2px}
.metric span{display:block;font-size:13px;color:var(--text-3);margin-top:8px}
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:56px}
.gallery figure{position:relative;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-md)}
.gallery img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .35s var(--ease)}
@media (hover:hover){
  .gallery figure:hover img{transform:scale(1.04)}
}
.gallery figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:26px 18px 14px;
  font-size:13px;font-weight:600;color:#fff;
  background:linear-gradient(to top,rgba(14,39,69,.45),transparent);
}
.quotes{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.quote{
  background:var(--surface);border:1px solid var(--border);border-left:3px solid var(--orange);
  border-radius:12px;padding:24px 26px;box-shadow:var(--sh-sm);
}
.quote p{font-size:15px;color:var(--text-2);line-height:1.9;margin-bottom:14px}
.quote cite{font-style:normal;font-size:13px;font-weight:600;color:var(--ink)}

/* 方案区 */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch;margin-bottom:48px}
.plan{
  position:relative;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-card);padding:28px 26px;box-shadow:var(--sh-md);
  display:flex;flex-direction:column;transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.plan:hover{box-shadow:var(--sh-lg)}
.plan.is-featured{
  border-color:var(--orange);box-shadow:0 18px 40px -18px rgba(226,84,44,.35);
  transform:translateY(-8px);
}
.plan-flag{
  position:absolute;top:-13px;left:26px;background:var(--orange);color:#fff;
  font-size:12px;font-weight:600;padding:4px 14px;border-radius:var(--r-pill);
}
.plan h3{font-size:20px;margin-bottom:6px}
.plan-desc{font-size:14px;color:var(--text-3);margin-bottom:20px}
.plan-price{
  font-size:34px;font-weight:700;color:var(--ink);letter-spacing:-1px;
  font-variant-numeric:tabular-nums;line-height:1.1;margin-bottom:4px;
}
.plan-price small{font-size:14px;font-weight:500;color:var(--text-3);letter-spacing:0;margin-left:4px}
.plan-list{display:flex;flex-direction:column;gap:11px;margin:22px 0 26px;flex:1}
.plan-list li{position:relative;padding-left:24px;font-size:14px;color:var(--text-2);line-height:1.7}
.plan-list li::before{
  content:"";position:absolute;left:0;top:7px;width:12px;height:12px;border-radius:50%;
  box-shadow:inset 0 0 0 2px var(--green);background:rgba(31,138,112,.12);
}
.table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--r-card);background:var(--surface)}
table.compare{width:100%;min-width:640px;border-collapse:collapse;font-size:14px}
table.compare th,table.compare td{padding:15px 20px;text-align:left;border-bottom:1px solid var(--line)}
table.compare thead th{background:var(--gray);font-weight:600;color:var(--ink);font-size:13px;letter-spacing:.02em}
table.compare tbody tr:last-child td{border-bottom:none}
table.compare tbody tr:nth-child(even) td{background:rgba(238,241,245,.45)}
table.compare td:first-child{font-weight:600;color:var(--ink)}
table.compare td{color:var(--text-2)}

/* 资讯列表 */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--border);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-md);transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
@media (hover:hover){
  .news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);border-color:rgba(22,55,94,.18)}
}
.news-card .thumb{position:relative;overflow:hidden}
.news-card .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s var(--ease)}
@media (hover:hover){
  .news-card:hover .thumb img{transform:scale(1.04)}
}
.news-card .thumb .badge-cat{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.94);color:var(--ink)}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.news-body h3{
  font-size:17px;line-height:1.55;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body h3 a{color:var(--ink)}
.news-body h3 a:hover{color:var(--orange)}
.news-body p{
  font-size:14px;color:var(--text-2);line-height:1.75;margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-3);
}
.news-meta .more{display:inline-flex;align-items:center;gap:4px;color:var(--ink);font-weight:600;font-size:13px}
.news-meta .more svg{width:14px;height:14px;transition:transform .2s var(--ease)}
.news-meta .more:hover{color:var(--orange)}
.news-meta .more:hover svg{transform:translateX(3px)}
.empty-state{
  grid-column:1/-1;text-align:center;padding:64px 24px;
  background:var(--surface);border:1px dashed var(--border);border-radius:var(--r-card);
}
.empty-state svg{width:48px;height:48px;color:var(--text-3);margin:0 auto 16px}
.empty-state p{font-size:15px;color:var(--text-2);margin-bottom:18px}

/* FAQ */
.faq-layout{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start}
.faq-intro h2{font-size:32px;line-height:1.3;margin-bottom:14px}
.faq-intro p{color:var(--text-2);margin-bottom:24px}
.faq-item{border-bottom:1px solid var(--line);position:relative;transition:border-color .2s var(--ease)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-item.is-open{border-bottom-color:rgba(226,84,44,.35)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:none;border:none;padding:20px 0 20px 0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.6;
  transition:padding .2s var(--ease),color .2s var(--ease);
}
.faq-q:hover{color:var(--orange)}
.faq-item.is-open .faq-q{padding-left:16px;color:var(--ink)}
.faq-item.is-open::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;
  border-radius:2px;background:var(--orange);
}
.faq-icon{
  flex-shrink:0;width:28px;height:28px;border-radius:50%;border:1px solid var(--border);
  position:relative;transition:all .22s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--ink);border-radius:2px;
  transform:translate(-50%,-50%);transition:all .22s var(--ease);
}
.faq-icon::before{width:11px;height:2px}
.faq-icon::after{width:2px;height:11px}
.faq-item.is-open .faq-icon{border-color:var(--orange);transform:rotate(180deg)}
.faq-item.is-open .faq-icon::before{background:var(--orange)}
.faq-item.is-open .faq-icon::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a p{font-size:15px;color:var(--text-2);line-height:1.9;padding:0 0 20px 16px}

/* CTA 结尾带 */
.cta-band{background:var(--ink);color:var(--inverse);padding:72px 0;position:relative;overflow:hidden}
.cta-band::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;
  border:1px solid rgba(247,245,241,.12);border-radius:50%;
}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:40px;
  padding-left:8px;padding-right:8px;position:relative;z-index:1;
}
.cta-inner h2{color:#fff;font-size:30px;line-height:1.3;margin-bottom:10px}
.cta-inner p{color:rgba(247,245,241,.78);font-size:15px;max-width:520px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex-shrink:0}

/* 浮动 CTA */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:850;
  display:inline-flex;align-items:center;gap:10px;
  background:var(--orange);color:#fff;font-size:15px;font-weight:600;
  padding:14px 24px;border-radius:var(--r-pill);
  box-shadow:0 18px 40px -18px rgba(226,84,44,.65);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s,background .2s var(--ease);
}
.float-cta svg{width:18px;height:18px}
.float-cta:hover{background:var(--orange-deep);color:#fff;transform:translateY(-3px)}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta.is-visible:hover{transform:translateY(-3px)}

/* 页脚 */
.site-footer{background:var(--ink);color:var(--inverse);padding:72px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:48px;padding-bottom:48px}
.footer-brand .brand-text strong{color:#fff}
.footer-brand .brand-text em{color:rgba(247,245,241,.55)}
.footer-brand .brand-mark{background:rgba(247,245,241,.12)}
.footer-brand p{font-size:14px;color:rgba(247,245,241,.68);line-height:1.85;margin:18px 0 22px;max-width:300px}
.socials{display:flex;gap:10px}
.socials a{
  width:36px;height:36px;border-radius:50%;border:1px solid rgba(247,245,241,.28);
  display:inline-flex;align-items:center;justify-content:center;color:rgba(247,245,241,.85);
  transition:all .2s var(--ease);
}
.socials a:hover{border-color:var(--orange);color:#fff;background:rgba(226,84,44,.24);transform:translateY(-2px)}
.socials svg{width:16px;height:16px}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px;letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14px;color:rgba(247,245,241,.70)}
.footer-col a:hover{color:#fff}
.footer-col .info-line{font-size:14px;color:rgba(247,245,241,.70);line-height:1.9}
.footer-line{height:1px;background:rgba(247,245,241,.12)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:22px;font-size:13px;color:rgba(247,245,241,.60);
}
.footer-bottom span{line-height:1.7}

/* 响应式 */
@media (max-width:1199px){
  .hero-grid{gap:40px}
  .main-nav{gap:14px}
  .main-nav a{font-size:14px}
}
@media (max-width:991px){
  :root{--nav-h:68px}
  .main-nav{
    position:fixed;inset:0;z-index:1100;
    background:#F7F5F1;
    flex-direction:column;align-items:flex-start;justify-content:flex-start;
    gap:0;padding:96px 24px 32px;
    transform:translateX(100%);transition:transform .3s var(--ease);
    overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0)}
  .main-nav a{
    width:100%;font-size:18px;font-weight:500;color:var(--ink);
    padding:16px 0;border-bottom:1px solid var(--line);
  }
  .main-nav a::after{display:none}
  .main-nav a.is-active{color:var(--orange)}
  .drawer-cta{display:inline-flex;width:100%;margin-top:28px}
  .nav-cta{display:none}
  .burger{display:inline-flex;z-index:1200}
  .hero{padding-top:calc(var(--nav-h) + 44px);padding-bottom:64px}
  .hero-grid{grid-template-columns:1fr;gap:48px}
  .hero-copy h1{max-width:640px}
  .hero-plate{display:none}
  .hero-note{display:none}
  .section{padding:72px 0}
  .feature-grid{grid-template-columns:1fr}
  .demo-grid{grid-template-columns:1fr;gap:36px}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .gallery{grid-template-columns:repeat(2,1fr)}
  .plans{grid-template-columns:1fr}
  .plan.is-featured{transform:none}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .steps{grid-template-columns:repeat(2,1fr);row-gap:32px}
  .quotes{grid-template-columns:1fr}
}
@media (max-width:767px){
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .section-head h2,.demo-copy h2,.faq-intro h2{font-size:24px}
  .hero-stats{gap:0;flex-wrap:nowrap}
  .hero-stat{padding:0 14px;flex:1}
  .hero-stat strong{font-size:22px}
  .hero-stat span{font-size:12px}
  .gallery{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .float-cta{
    left:16px;right:16px;bottom:0;border-radius:0;
    justify-content:center;padding:16px 20px;
    transform:translateY(100%);
  }
  .float-cta.is-visible{transform:translateY(0)}
  .float-cta.is-visible:hover{transform:translateY(0)}
  body{padding-bottom:72px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:575px){
  .container{padding-left:20px;padding-right:20px}
  .subnav-inner{padding:0 20px;gap:20px}
  .hero-cta .btn{width:100%}
  .hero-stats{flex-wrap:wrap;gap:14px 0}
  .hero-stat{flex:1 1 33.33%}
  .metrics{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .footer-grid{gap:28px}
  .cta-band{padding:56px 0}
  .cta-inner h2{font-size:24px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .card:hover,.news-card:hover,.btn:hover,.float-cta:hover{transform:none !important}
}

/* roulang page: category1 */
:root{
  --ink:#16375E;
  --ink-deep:#0E2745;
  --orange:#E2542C;
  --orange-deep:#C8461F;
  --green:#1F8A70;
  --bg:#F7F5F1;
  --surface:#FFFFFF;
  --grey:#EEF1F5;
  --text:#101C2C;
  --text-2:#4A5A6E;
  --text-3:#7C8A9C;
  --line:#E3E7EC;
  --line-soft:#EDEFF2;
  --radius-card:16px;
  --radius-lg:24px;
  --radius-btn:10px;
  --shadow-sm:0 1px 2px rgba(16,28,44,.06);
  --shadow-md:0 8px 24px -12px rgba(16,28,44,.18);
  --shadow-lg:0 18px 40px -18px rgba(16,28,44,.24);
  --focus:0 0 0 3px rgba(226,84,44,.20);
  --ease:cubic-bezier(.4,0,.2,1);
  --bs-primary:#16375E;
  --bs-border-radius:16px;
  --bs-body-font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  padding-bottom:0;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
a{color:var(--ink);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--orange)}
img{max-width:100%;display:block}
button{font-family:inherit}
:focus-visible{outline:none;box-shadow:var(--focus);border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(247,245,241,.55);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(22,55,94,.08);
  box-shadow:0 8px 24px -16px rgba(16,28,44,.35);
  transition:background .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-stuck{
  background:rgba(255,255,255,.94);
  box-shadow:var(--shadow-md);
  border-bottom-color:rgba(22,55,94,.14);
}
.header-inner{
  display:flex;align-items:center;gap:20px;
  max-width:1240px;margin:0 auto;padding:0 24px;
  height:76px;transition:height .24s var(--ease);
}
.site-header.is-stuck .header-inner{height:64px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;border-radius:10px;flex-shrink:0;
  background:linear-gradient(150deg,#1D4470,#16375E 65%,#0E2745);
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-sm);transition:width .24s var(--ease),height .24s var(--ease);
}
.brand-mark svg{width:22px;height:22px}
.site-header.is-stuck .brand-mark{width:32px;height:32px}
.brand-text{display:flex;flex-direction:column;line-height:1.16}
.brand-text strong{font-size:17px;font-weight:600;color:var(--ink);letter-spacing:-.2px}
.brand-text em{font-style:normal;font-size:12.5px;font-weight:400;color:var(--text-3);letter-spacing:.6px}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px;flex-wrap:nowrap}
.nav-link{
  position:relative;display:inline-block;padding:8px 9px;border-radius:8px;
  font-size:14px;font-weight:500;color:var(--text-2);white-space:nowrap;
  transition:color .18s var(--ease),background .18s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:9px;right:9px;bottom:2px;height:2px;border-radius:2px;
  background:var(--orange);transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.nav-link:hover{color:var(--ink);background:rgba(22,55,94,.05)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex-shrink:0}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;padding:14px 26px;
  cursor:pointer;transition:transform .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 6px 16px -8px rgba(226,84,44,.7)}
.btn-primary:hover{background:var(--orange-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:transparent;color:var(--ink);border:1.5px solid rgba(22,55,94,.45)}
.btn-outline:hover{background:rgba(22,55,94,.07);color:var(--ink);transform:translateY(-2px);border-color:var(--ink)}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid rgba(22,55,94,.16)}
.btn-ghost:hover{background:rgba(22,55,94,.06);color:var(--ink)}
.btn-sm{padding:10px 18px;font-size:13.5px}
.btn-block{width:100%}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;margin-left:auto;border-radius:10px;
  border:1px solid rgba(22,55,94,.16);background:rgba(255,255,255,.6);cursor:pointer;color:var(--ink);
}
.nav-toggle svg{width:22px;height:22px}

/* ---------- Mobile drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:1100;background:#F7F5F1;
  padding:20px 24px 32px;display:flex;flex-direction:column;
  transform:translateY(-8px);opacity:0;visibility:hidden;
  transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s;
}
.drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line)}
.drawer-close{
  width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--ink);display:flex;align-items:center;justify-content:center;cursor:pointer;
}
.drawer-close svg{width:20px;height:20px}
.drawer-nav{display:flex;flex-direction:column;padding:14px 0 20px;overflow-y:auto}
.drawer-nav a{
  font-size:18px;font-weight:500;color:var(--text);padding:14px 4px;
  border-bottom:1px solid var(--line-soft);
}
.drawer-nav a.is-active{color:var(--orange);font-weight:600}
.drawer-foot{margin-top:auto;padding-top:18px}
body.drawer-open{overflow:hidden}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:140px 0 56px;
  background:
    repeating-linear-gradient(0deg,rgba(22,55,94,.045) 0 1px,transparent 1px 34px),
    repeating-linear-gradient(90deg,rgba(22,55,94,.045) 0 1px,transparent 1px 34px),
    linear-gradient(180deg,#FBF9F5 0%,#F7F5F1 100%);
  border-bottom:1px solid var(--line-soft);
}
.page-hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:420px;height:420px;border-radius:50%;
  border:1px solid rgba(22,55,94,.09);opacity:.7;pointer-events:none;
}
.page-hero .container{position:relative;z-index:1}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:18px}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumbs li{display:flex;align-items:center;gap:8px}
.crumbs li+li::before{content:"/";color:var(--line);font-size:13px}
.crumbs a{color:var(--text-2)}
.crumbs a:hover{color:var(--orange)}
.crumbs li[aria-current]{color:var(--text-2);max-width:60vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hero-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:rgba(226,84,44,.10);color:var(--orange-deep);margin-bottom:14px;
}
.hero-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--orange)}
.page-hero h1{
  font-size:clamp(27px,4.2vw,42px);font-weight:700;line-height:1.2;letter-spacing:-.5px;color:var(--ink);
  margin-bottom:14px;
}
.page-hero .lede{font-size:16px;color:var(--text-2);max-width:62ch}

/* ---------- Anchor bar ---------- */
.anchor-wrap{
  position:sticky;top:64px;z-index:900;
  padding:12px 0;
  background:rgba(247,245,241,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line-soft);
}
.anchor-bar{
  display:flex;gap:8px;justify-content:center;overflow-x:auto;
  scrollbar-width:none;padding:0 24px;
}
.anchor-bar::-webkit-scrollbar{display:none}
.anchor-bar a{
  flex:0 0 auto;padding:8px 16px;border-radius:999px;font-size:13.5px;font-weight:500;
  color:var(--text-2);background:#fff;border:1px solid var(--line);white-space:nowrap;
  transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
}
.anchor-bar a:hover{color:var(--ink);border-color:rgba(22,55,94,.28)}

/* ---------- Section base ---------- */
.section{padding:72px 0}
.section-alt{background:var(--surface)}
.section-head{max-width:720px;margin-bottom:36px}
.eyebrow{
  display:inline-block;font-size:12.5px;font-weight:600;letter-spacing:1.4px;
  color:var(--green);text-transform:uppercase;margin-bottom:10px;
}
.section-head h2{font-size:clamp(23px,3vw,32px);font-weight:650;line-height:1.3;color:var(--ink);letter-spacing:-.3px}
.section-head p{margin-top:10px;color:var(--text-2);font-size:15.5px}

/* ---------- Overview layout ---------- */
.overview-layout{display:grid;grid-template-columns:264px 1fr;gap:44px;align-items:start}
.index-rail{
  position:sticky;top:148px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 20px;box-shadow:var(--shadow-md);
}
.rail-title{font-size:12.5px;font-weight:600;letter-spacing:1.2px;color:var(--text-3);margin-bottom:14px}
.rail-list{display:flex;flex-direction:column;gap:2px}
.rail-list a{
  display:flex;align-items:baseline;gap:10px;padding:10px 10px;border-radius:9px;
  font-size:14.5px;color:var(--text-2);border-left:2px solid transparent;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.rail-num{
  font-size:12px;font-weight:600;color:var(--text-3);font-variant-numeric:tabular-nums;
  transition:color .18s var(--ease);
}
.rail-list a:hover{background:var(--grey);color:var(--ink)}
.rail-list a.is-current{background:rgba(226,84,44,.08);color:var(--ink);font-weight:600;border-left-color:var(--orange)}
.rail-list a.is-current .rail-num{color:var(--orange)}
.rail-note{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line-soft);
  font-size:13px;color:var(--text-3);line-height:1.7;
}
.rail-note a{color:var(--ink);font-weight:600;border-bottom:1px solid rgba(226,84,44,.35)}
.rail-note a:hover{color:var(--orange);border-color:var(--orange)}

.topic-stack{display:flex;flex-direction:column;gap:52px}
.topic-block{scroll-margin-top:150px}
.block-head{display:flex;gap:16px;align-items:flex-start;margin-bottom:22px}
.block-num{
  flex-shrink:0;width:38px;height:38px;border-radius:11px;
  background:rgba(22,55,94,.07);color:var(--ink);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;
}
.block-head h2{font-size:clamp(20px,2.4vw,26px);font-weight:650;color:var(--ink);line-height:1.35;letter-spacing:-.2px}
.block-head p{margin-top:6px;font-size:14.5px;color:var(--text-2);max-width:64ch}

.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.info-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-md);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(22,55,94,.18)}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--grey)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.info-card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.tag{
  align-self:flex-start;display:inline-block;padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:600;background:rgba(31,138,112,.10);color:#17705B;
}
.tag-warm{background:rgba(226,84,44,.10);color:var(--orange-deep)}
.info-card h3{font-size:18px;font-weight:600;color:var(--ink);line-height:1.45}
.info-card p{font-size:14.5px;color:var(--text-2);line-height:1.78}
.check-list{display:flex;flex-direction:column;gap:8px;margin-top:2px;padding-top:14px;border-top:1px solid var(--line-soft)}
.check-list li{position:relative;padding-left:22px;font-size:13.5px;color:var(--text-2);line-height:1.7}
.check-list li::before{
  content:"";position:absolute;left:0;top:8px;width:12px;height:7px;
  border-left:1.75px solid var(--green);border-bottom:1.75px solid var(--green);
  transform:rotate(-45deg);border-radius:1px;
}
.tip-strip{
  display:flex;gap:14px;align-items:flex-start;
  margin-top:24px;padding:18px 20px;border-radius:14px;
  background:rgba(22,55,94,.05);border:1px solid rgba(22,55,94,.10);
}
.tip-strip .tip-ico{
  flex-shrink:0;width:30px;height:30px;border-radius:9px;background:#fff;color:var(--ink);
  display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-sm);
}
.tip-strip .tip-ico svg{width:17px;height:17px}
.tip-strip p{font-size:13.5px;color:var(--text-2);line-height:1.75}
.tip-strip strong{color:var(--ink)}

/* ---------- Related pills ---------- */
.related-band{padding:56px 0;background:var(--grey)}
.related-band h2{font-size:20px;font-weight:650;color:var(--ink);margin-bottom:6px}
.related-band p{font-size:14px;color:var(--text-2);margin-bottom:20px}
.pill-row{display:flex;flex-wrap:wrap;gap:12px}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 20px;border-radius:999px;background:#fff;
  border:1px solid var(--line);font-size:14px;font-weight:500;color:var(--text);
  transition:transform .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease),box-shadow .18s var(--ease);
}
.pill svg{width:14px;height:14px;color:var(--text-3);transition:transform .18s var(--ease),color .18s var(--ease)}
.pill:hover{transform:translateY(-2px);border-color:rgba(22,55,94,.24);color:var(--ink);box-shadow:var(--shadow-sm)}
.pill:hover svg{transform:translateX(3px);color:var(--orange)}

/* ---------- CTA ---------- */
.cta-band{background:var(--ink);color:#F7F5F1;padding:72px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-copy h2{font-size:clamp(22px,3vw,30px);font-weight:650;line-height:1.3;margin-bottom:10px;color:#F7F5F1}
.cta-copy p{font-size:15px;color:rgba(247,245,241,.76);max-width:56ch}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.cta-actions .btn-outline{color:#F7F5F1;border-color:rgba(247,245,241,.5)}
.cta-actions .btn-outline:hover{background:rgba(247,245,241,.12);color:#fff;border-color:#F7F5F1}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#F7F5F1;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:44px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand .brand-text strong{color:#F7F5F1}
.footer-brand .brand-text em{color:rgba(247,245,241,.6)}
.footer-brand .brand-mark{background:rgba(247,245,241,.12)}
.footer-brand p{font-size:13.5px;line-height:1.8;color:rgba(247,245,241,.72);max-width:34ch}
.socials{display:flex;gap:10px;margin-top:20px}
.socials a{
  width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(247,245,241,.28);color:rgba(247,245,241,.82);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.socials a svg{width:17px;height:17px}
.socials a:hover{background:rgba(247,245,241,.14);color:#fff;border-color:rgba(247,245,241,.6);transform:translateY(-2px)}
.footer-col h4{font-size:14px;font-weight:600;color:#F7F5F1;margin-bottom:16px;letter-spacing:.4px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:13.5px;color:rgba(247,245,241,.72)}
.footer-col a:hover{color:#fff}
.footer-contact li{display:flex;flex-direction:column;gap:2px;font-size:13.5px;color:rgba(247,245,241,.72)}
.footer-contact li span{font-size:12px;color:rgba(247,245,241,.5)}
.footer-bottom{
  border-top:1px solid rgba(247,245,241,.12);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:10px 22px;justify-content:space-between;
  font-size:13px;color:rgba(247,245,241,.7);
}
.footer-bottom a{color:rgba(247,245,241,.7)}
.footer-bottom a:hover{color:#fff}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .header-inner{max-width:100%}
  .nav-link{font-size:13.5px;padding:8px 7px}
}
@media (max-width:1080px){
  .main-nav,.header-actions{display:none}
  .nav-toggle{display:flex}
  .overview-layout{grid-template-columns:226px 1fr;gap:32px}
}
@media (max-width:991px){
  .page-hero{padding:124px 0 46px}
  .overview-layout{grid-template-columns:1fr;gap:28px}
  .index-rail{position:static;top:auto}
  .rail-list{flex-direction:row;flex-wrap:wrap;gap:8px}
  .rail-list a{border-left:none;border:1px solid var(--line);border-radius:999px;padding:8px 14px;font-size:13.5px}
  .rail-list a.is-current{border-color:rgba(226,84,44,.5);background:rgba(226,84,44,.08)}
  .rail-note{display:none}
  .section{padding:60px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .anchor-wrap{top:60px}
  .anchor-bar{justify-content:flex-start}
  .card-grid{grid-template-columns:1fr}
  .page-hero{padding:112px 0 40px}
  .topic-stack{gap:44px}
  .cta-inner{gap:24px}
  .section{padding:52px 0}
  .related-band{padding:44px 0}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:520px){
  .brand-text strong{font-size:15.5px}
  .brand-text em{font-size:11.5px}
  .brand-mark{width:32px;height:32px}
  .btn{padding:13px 20px;font-size:14px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
  .block-head{gap:12px}
  .block-num{width:34px;height:34px;font-size:13px}
  .crumbs li[aria-current]{max-width:52vw}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .info-card:hover{transform:none}
  .btn:hover{transform:none}
}

/* roulang page: article */
:root{
  --ink:#16375E;
  --ink-deep:#0E2745;
  --accent:#E2542C;
  --accent-deep:#C8461F;
  --accent-soft:rgba(226,84,44,.10);
  --green:#1F8A70;
  --bg:#F7F5F1;
  --surface:#FFFFFF;
  --muted-bg:#EEF1F5;
  --text:#101C2C;
  --text-2:#4A5A6E;
  --text-3:#7C8A9C;
  --line:#E3E7EC;
  --line-2:#EDEFF2;
  --radius-card:16px;
  --radius-lg:24px;
  --radius-btn:10px;
  --shadow-sm:0 1px 2px rgba(16,28,44,.06);
  --shadow-md:0 8px 24px -12px rgba(16,28,44,.18);
  --shadow-lg:0 18px 40px -18px rgba(16,28,44,.24);
  --ease:cubic-bezier(.4,0,.2,1);
  --bs-body-font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --bs-body-color:#101C2C;
  --bs-primary:#16375E;
  --bs-border-radius:12px;
  --bs-link-color:#16375E;
  --bs-link-hover-color:#E2542C;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  padding-bottom:0;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--ink);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--accent)}
button{font-family:inherit}
h1,h2,h3,h4,h5{margin:0;color:var(--text);font-weight:650;letter-spacing:-.2px}
p{margin:0}
ul,ol{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
body .container{
  width:100%;
  max-width:1200px;
  padding-left:24px;
  padding-right:24px;
  margin-left:auto;
  margin-right:auto;
}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1030;
  background:rgba(247,245,241,.55);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(22,55,94,.08);
  box-shadow:0 8px 24px -16px rgba(16,28,44,.35);
  transition:background .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.site-header.is-stuck{
  background:rgba(255,255,255,.94);
  border-bottom-color:var(--line);
  box-shadow:var(--shadow-md);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:76px;
  transition:height .22s var(--ease);
}
.site-header.is-stuck .header-inner{height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:36px;height:36px;flex:0 0 auto;
  border-radius:10px;
  background:var(--ink);
  display:grid;place-items:center;
  box-shadow:var(--shadow-sm);
  transition:width .22s var(--ease),height .22s var(--ease);
}
.brand-mark svg{width:22px;height:22px}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:16px;font-weight:600;letter-spacing:-.2px;color:var(--ink)}
.brand-text em{font-style:normal;font-size:11px;font-weight:400;letter-spacing:.18em;color:var(--text-3)}
.site-header.is-stuck .brand-mark{width:32px;height:32px}
.site-header.is-stuck .brand-mark svg{width:20px;height:20px}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.main-nav .nav-link{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:15px;
  font-weight:500;
  color:var(--text-2);
  border-radius:8px;
  white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.main-nav .nav-link::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:1px;
  height:2px;border-radius:2px;
  background:var(--accent);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s var(--ease);
}
.main-nav .nav-link:hover{color:var(--ink);background:rgba(22,55,94,.04)}
.main-nav .nav-link:hover::after{transform:scaleX(1)}
.main-nav .nav-link.is-active{color:var(--ink);font-weight:600}
.main-nav .nav-link.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;
  display:inline-grid;place-items:center;
  border-radius:10px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.7);
  color:var(--text-2);
  cursor:pointer;
  transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease);
}
.icon-btn:hover{color:var(--ink);border-color:rgba(22,55,94,.22);background:#fff;transform:translateY(-2px)}
.icon-btn svg{width:20px;height:20px}
.btn-c{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);
  border:1.5px solid transparent;
  padding:12px 22px;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  cursor:pointer;
  text-align:center;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-c svg{width:18px;height:18px;flex:0 0 auto}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 6px 18px -10px rgba(226,84,44,.8)}
.btn-accent:hover{background:var(--accent-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.btn-accent:active{transform:translateY(0)}
.btn-outline{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-outline:hover{background:rgba(22,55,94,.06);color:var(--ink);transform:translateY(-2px)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text-2)}
.btn-ghost:hover{border-color:rgba(22,55,94,.22);color:var(--ink);background:#fff}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-block{width:100%}
.menu-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:10px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink);
  cursor:pointer;
  place-items:center;
}
.menu-toggle svg{width:22px;height:22px}

/* 移动抽屉 */
.drawer{
  position:fixed;
  inset:0;
  z-index:1080;
  background:rgba(16,28,44,.42);
  opacity:0;
  visibility:hidden;
  transition:opacity .24s var(--ease),visibility .24s var(--ease);
}
.drawer.is-open{opacity:1;visibility:visible}
.drawer-panel{
  position:absolute;
  top:0;right:0;
  width:min(84vw,340px);
  height:100%;
  background:#FBF9F5;
  padding:20px 22px 28px;
  display:flex;
  flex-direction:column;
  gap:18px;
  overflow-y:auto;
  transform:translateX(100%);
  transition:transform .26s var(--ease);
  box-shadow:-18px 0 40px -24px rgba(16,28,44,.5);
}
.drawer.is-open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line-2)}
.drawer-close{
  width:38px;height:38px;border-radius:10px;
  border:1px solid var(--line);
  background:#fff;color:var(--text-2);
  cursor:pointer;display:grid;place-items:center;
}
.drawer-close svg{width:18px;height:18px}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{
  padding:14px 4px;
  font-size:17px;
  font-weight:500;
  color:var(--text);
  border-bottom:1px solid var(--line-2);
}
.drawer-nav a:hover{color:var(--accent)}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;
  padding:132px 0 44px;
  background:var(--bg);
  overflow:hidden;
  border-bottom:1px solid var(--line-2);
}
.article-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(22,55,94,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(22,55,94,.045) 1px,transparent 1px);
  background-size:46px 46px;
  pointer-events:none;
}
.article-hero::after{
  content:"";
  position:absolute;
  right:-120px;top:-80px;
  width:420px;height:420px;
  border-radius:50%;
  border:1px solid rgba(22,55,94,.07);
  pointer-events:none;
}
.article-hero .container{position:relative;z-index:1}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  list-style:none;padding:0;margin:0 0 20px;
  font-size:13px;color:var(--text-3);
}
.crumbs li{display:flex;align-items:center;gap:8px;min-width:0}
.crumbs li+li::before{content:"/";color:#C9D0D9}
.crumbs a{color:var(--text-2)}
.crumbs a:hover{color:var(--accent)}
.crumbs .current{color:var(--text-2);max-width:320px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;
  border-radius:999px;
  background:var(--accent-soft);
  color:#B23C18;
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
  line-height:1.7;
}
.badge-line{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  background:rgba(31,138,112,.10);
  color:#136853;font-size:12px;font-weight:600;
}
.article-title{
  font-size:clamp(26px,3.4vw,40px);
  line-height:1.28;
  font-weight:700;
  letter-spacing:-.5px;
  max-width:900px;
  margin:16px 0 18px;
  color:var(--text);
  overflow-wrap:break-word;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;
  font-size:13.5px;color:var(--text-3);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C9D0D9;display:inline-block}
.article-meta strong{color:var(--text-2);font-weight:500}
.article-head-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:16px;margin-top:24px;padding-top:20px;border-top:1px solid rgba(22,55,94,.08);
}
.share-group{display:flex;align-items:center;gap:10px}
.share-label{font-size:13px;color:var(--text-3);margin-right:2px}
.share-btn{
  width:40px;height:40px;border-radius:50%;
  border:1px solid rgba(22,55,94,.16);
  background:rgba(255,255,255,.7);
  color:var(--text-2);
  display:grid;place-items:center;
  cursor:pointer;
  transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease);
}
.share-btn svg{width:18px;height:18px}
.share-btn:hover{border-color:var(--accent);color:var(--accent);background:#fff;transform:translateY(-2px)}

/* ---------- 正文布局 ---------- */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:48px;
  padding-top:44px;
  padding-bottom:72px;
  align-items:start;
}
.article-main{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
  padding:44px;
  min-width:0;
}
.article-body{
  max-width:760px;
  font-size:17px;
  line-height:1.9;
  color:var(--text-2);
  overflow-wrap:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body h2{
  position:relative;
  padding-left:16px;
  font-size:26px;
  font-weight:650;
  line-height:1.38;
  color:var(--text);
  margin:40px 0 16px;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:.26em;bottom:.26em;
  width:4px;border-radius:2px;
  background:var(--accent);
}
.article-body h3{
  font-size:20px;
  font-weight:600;
  line-height:1.5;
  color:var(--text);
  margin:28px 0 12px;
}
.article-body h4{
  font-size:17px;
  font-weight:600;
  color:var(--text);
  margin:22px 0 10px;
}
.article-body p{margin:0 0 1.25em}
.article-body ul,.article-body ol{padding-left:1.4em;margin:0 0 1.25em}
.article-body li{margin-bottom:.55em;line-height:1.85}
.article-body li::marker{color:var(--ink)}
.article-body blockquote{
  margin:24px 0;
  padding:18px 22px;
  background:#FBF9F5;
  border-left:3px solid var(--ink);
  border-radius:0 12px 12px 0;
  color:var(--text-2);
  font-style:normal;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:24px auto;max-width:100%}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:8px}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:24px 0;
  font-size:15px;
  line-height:1.7;
  display:block;
  overflow-x:auto;
  white-space:normal;
}
.article-body th,.article-body td{
  border:1px solid var(--line);
  padding:10px 14px;
  text-align:left;
  vertical-align:top;
}
.article-body thead th{background:#F1F4F8;color:var(--text);font-weight:600}
.article-body tbody tr:nth-child(even){background:#FAFBFC}
.article-body a{
  color:var(--ink);
  text-decoration:underline;
  text-decoration-color:rgba(22,55,94,.35);
  text-underline-offset:3px;
  transition:color .2s var(--ease),text-decoration-color .2s var(--ease);
}
.article-body a:hover{color:var(--accent);text-decoration-color:rgba(226,84,44,.6)}
.article-body strong{color:var(--text);font-weight:600}
.article-body hr{border:0;border-top:1px solid var(--line-2);margin:32px 0}
.article-body code{
  background:var(--muted-bg);
  color:var(--ink-deep);
  padding:2px 6px;
  border-radius:6px;
  font-size:.9em;
}

/* 空态 */
.empty-state{
  text-align:center;
  padding:56px 20px;
  border:1px dashed var(--line);
  border-radius:var(--radius-card);
  background:#FCFBF9;
}
.empty-state svg{width:48px;height:48px;margin:0 auto 16px;color:var(--text-3)}
.empty-state p{font-size:15px;color:var(--text-2);margin-bottom:18px}

/* 标签 */
.article-tags{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin:40px 0 0;
  padding-top:28px;
  border-top:1px solid var(--line-2);
}
.tag-label{font-size:13px;color:var(--text-3);margin-right:2px}
.tag-pill{
  display:inline-flex;align-items:center;
  padding:5px 14px;
  border-radius:999px;
  background:rgba(22,55,94,.06);
  color:var(--ink);
  font-size:13px;
  font-weight:500;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.tag-pill:hover{background:var(--accent-soft);color:#B23C18;transform:translateY(-2px)}

/* 上一篇 / 下一篇 */
.post-nav{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
  margin-top:32px;
}
.post-nav a{
  display:block;
  border:1px solid var(--line);
  border-radius:14px;
  background:#fff;
  padding:16px 18px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease);
}
.post-nav a:hover{border-color:rgba(22,55,94,.2);box-shadow:var(--shadow-md);transform:translateY(-2px)}
.post-nav .pn-dir{display:block;font-size:12.5px;color:var(--text-3);margin-bottom:6px}
.post-nav .pn-title{display:block;font-size:15px;font-weight:600;color:var(--text);line-height:1.6}
.post-nav .pn-next{text-align:right}

/* 侧栏 */
.article-side{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px}
.side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);
  padding:22px;
}
.side-card summary{
  display:none;
  list-style:none;
  cursor:pointer;
  font-size:15px;
  font-weight:600;
  color:var(--text);
  align-items:center;
  justify-content:space-between;
}
.side-card summary::-webkit-details-marker{display:none}
.side-card summary::after{
  content:"+";
  font-size:18px;
  color:var(--text-3);
  line-height:1;
}
.side-card[open] summary::after{content:"–"}
.side-title{
  font-size:15px;
  font-weight:600;
  color:var(--text);
  margin-bottom:14px;
  display:flex;align-items:center;gap:8px;
}
.side-title svg{width:18px;height:18px;color:var(--accent)}
.side-list{list-style:none;padding:0;margin:0}
.side-list li{
  display:flex;gap:10px;
  font-size:14px;
  line-height:1.7;
  color:var(--text-2);
  padding:9px 0;
  border-bottom:1px dashed var(--line-2);
}
.side-list li:last-child{border-bottom:0;padding-bottom:0}
.side-list li:first-child{padding-top:0}
.side-list .num{
  flex:0 0 auto;
  width:20px;height:20px;
  margin-top:3px;
  border-radius:6px;
  background:rgba(22,55,94,.08);
  color:var(--ink);
  font-size:11.5px;
  font-weight:600;
  display:grid;place-items:center;
  font-variant-numeric:tabular-nums;
}
.side-links{display:flex;flex-direction:column;gap:2px}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;
  gap:8px;
  padding:10px 0;
  font-size:14.5px;
  color:var(--text-2);
  border-bottom:1px solid var(--line-2);
}
.side-links a:last-child{border-bottom:0;padding-bottom:0}
.side-links a svg{width:16px;height:16px;color:var(--text-3);transition:transform .2s var(--ease),color .2s var(--ease)}
.side-links a:hover{color:var(--accent)}
.side-links a:hover svg{color:var(--accent);transform:translateX(3px)}
.side-cta{
  background:var(--ink);
  border-color:var(--ink);
  color:var(--bg);
}
.side-cta .side-title{color:#fff}
.side-cta p{font-size:13.5px;line-height:1.8;color:rgba(247,245,241,.78);margin-bottom:16px}
.side-cta .btn-c{border-color:rgba(247,245,241,.4);color:#fff}
.side-cta .btn-c:hover{background:rgba(247,245,241,.12);color:#fff;border-color:#fff}

/* ---------- 相关推荐 ---------- */
.related-section{padding:0 0 84px}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:20px;margin-bottom:28px;flex-wrap:wrap;
}
.section-head h2{font-size:28px;font-weight:650;line-height:1.32}
.section-head p{font-size:14.5px;color:var(--text-3);margin-top:8px}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:600;color:var(--ink);
}
.text-link svg{width:16px;height:16px;transition:transform .2s var(--ease)}
.text-link:hover{color:var(--accent)}
.text-link:hover svg{transform:translateX(4px)}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card-c{
  display:flex;flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-md);
  overflow:hidden;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.card-c .thumb{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--muted-bg);
}
.card-c .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.card-c .thumb .badge-soft{
  position:absolute;left:14px;top:14px;
  background:rgba(255,255,255,.94);
  color:#B23C18;
  box-shadow:var(--shadow-sm);
}
.card-c .card-body-c{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.card-c h3{
  font-size:17px;
  font-weight:600;
  line-height:1.55;
  color:var(--text);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:10px;
}
.card-c p{
  font-size:14px;
  line-height:1.8;
  color:var(--text-3);
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:18px;
}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;
  gap:10px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line-2);
  font-size:13px;color:var(--text-3);
}
.card-foot .more{display:inline-flex;align-items:center;gap:5px;font-weight:600;color:var(--ink)}
.card-foot .more svg{width:15px;height:15px;transition:transform .2s var(--ease)}
.card-c:hover .card-foot .more{color:var(--accent)}
.card-c:hover .card-foot .more svg{transform:translateX(3px)}
@media (hover:hover){
  .card-c:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(22,55,94,.18)}
  .card-c:hover .thumb img{transform:scale(1.04)}
}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--ink);
  color:var(--bg);
  padding:56px 0;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-80px;bottom:-140px;
  width:340px;height:340px;
  border-radius:50%;
  border:1px solid rgba(247,245,241,.12);
  pointer-events:none;
}
.cta-inner{
  position:relative;z-index:1;
  display:flex;align-items:center;justify-content:space-between;
  gap:32px;
  padding:0 8px;
}
.cta-inner h2{color:#fff;font-size:clamp(22px,2.6vw,30px);line-height:1.35}
.cta-inner p{color:rgba(247,245,241,.76);font-size:14.5px;margin-top:10px;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto}
.btn-on-dark{border-color:rgba(247,245,241,.55);color:#fff;background:transparent}
.btn-on-dark:hover{background:rgba(247,245,241,.14);color:#fff;border-color:#fff;transform:translateY(-2px)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--bg);padding:64px 0 0}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand .brand{color:var(--bg);margin-bottom:16px}
.footer-brand .brand-text strong{color:#fff}
.footer-brand .brand-text em{color:rgba(247,245,241,.6)}
.footer-brand .brand-mark{background:rgba(247,245,241,.12);border:1px solid rgba(247,245,241,.2)}
.footer-brand p{
  font-size:13.5px;
  line-height:1.9;
  color:rgba(247,245,241,.7);
  max-width:300px;
  margin-bottom:20px;
}
.socials{display:flex;gap:10px}
.socials a{
  width:36px;height:36px;border-radius:50%;
  border:1px solid rgba(247,245,241,.25);
  display:grid;place-items:center;
  color:rgba(247,245,241,.8);
  transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease);
}
.socials a svg{width:17px;height:17px}
.socials a:hover{border-color:#fff;color:#fff;background:rgba(247,245,241,.1);transform:translateY(-2px)}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  color:#fff;
  letter-spacing:.02em;
  margin-bottom:16px;
}
.footer-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.footer-col a{
  font-size:13.5px;
  color:rgba(247,245,241,.72);
  transition:color .2s var(--ease);
}
.footer-col a:hover{color:#fff}
.footer-contact li{
  display:flex;flex-direction:column;gap:2px;
  font-size:13.5px;
  color:rgba(247,245,241,.72);
  line-height:1.7;
}
.footer-contact li span.k{color:rgba(247,245,241,.45);font-size:12px;letter-spacing:.04em}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:10px;
  font-size:13px;
  color:rgba(247,245,241,.7);
}
.footer-bottom .fb-left{display:flex;flex-wrap:wrap;align-items:center;gap:14px}
.footer-bottom a{color:rgba(247,245,241,.7)}
.footer-bottom a:hover{color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .article-layout{gap:36px;grid-template-columns:minmax(0,1fr) 296px}
  .article-main{padding:36px}
}
@media (max-width:991px){
  .main-nav{display:none}
  .menu-toggle{display:grid}
  .header-actions .btn-accent{display:none}
  .header-inner{height:68px;gap:16px}
  .site-header.is-stuck .header-inner{height:60px}
  .article-hero{padding:112px 0 36px}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:28px;padding-top:32px;padding-bottom:56px}
  .article-side{position:static;top:auto}
  .side-card{padding:0}
  .side-card summary{display:flex;padding:16px 20px}
  .side-card .side-body{padding:0 20px 20px}
  .side-title{margin-top:2px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:22px}
}
@media (max-width:767px){
  body{font-size:15.5px}
  body .container{padding-left:20px;padding-right:20px}
  .article-hero{padding:104px 0 30px}
  .article-title{font-size:26px;letter-spacing:-.3px}
  .article-main{padding:24px 20px;border-radius:18px}
  .article-body{font-size:16px;line-height:1.88}
  .article-body h2{font-size:21px;margin-top:32px}
  .article-body h3{font-size:18px;margin-top:24px}
  .post-nav{grid-template-columns:1fr}
  .post-nav .pn-next{text-align:left}
  .card-grid{grid-template-columns:1fr}
  .section-head h2{font-size:22px}
  .article-head-bottom{gap:12px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .cta-band{padding:44px 0}
  .site-footer{padding-top:48px}
}
@media (max-width:575px){
  .crumbs .current{max-width:180px}
  .header-inner{height:62px}
  .brand-text strong{font-size:15px}
  .brand-mark{width:32px;height:32px}
  .brand-mark svg{width:19px;height:19px}
  .article-meta{font-size:12.5px;gap:8px 10px}
  .share-label{display:none}
  .btn-c{padding:11px 18px;font-size:14.5px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
  }
}

/* roulang page: category2 */
:root{
  --ink:#16375E;
  --ink-deep:#0E2745;
  --orange:#E2542C;
  --orange-deep:#C8461F;
  --green:#1F8A70;
  --bg:#F7F5F1;
  --bg-white:#FFFFFF;
  --bg-gray:#EEF1F5;
  --text:#101C2C;
  --text-sub:#4A5A6E;
  --text-weak:#7C8A9C;
  --line:#E3E7EC;
  --divider:#EDEFF2;
  --r-card:16px;
  --r-lg:24px;
  --r-btn:10px;
  --shadow-sm:0 1px 2px rgba(16,28,44,.06);
  --shadow-md:0 8px 24px -12px rgba(16,28,44,.18);
  --shadow-lg:0 18px 40px -18px rgba(16,28,44,.24);
  --focus-ring:0 0 0 3px rgba(226,84,44,.20);
  --header-h:76px;
  --bs-primary:#16375E;
  --bs-border-radius:10px;
  --bs-body-font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  padding-bottom:0;
}
body.is-scrolled{--header-h:64px;}
body.nav-open{overflow:hidden;}
img{max-width:100%;display:block;height:auto;}
a{color:var(--ink);text-decoration:none;transition:color .2s cubic-bezier(.4,0,.2,1);}
a:hover{color:var(--orange);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.3px;}
p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:none;box-shadow:var(--focus-ring);}

/* 容器 */
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section--white{background:var(--bg-white);}
.section--gray{background:var(--bg-gray);}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head h2{font-size:32px;font-weight:650;line-height:1.3;margin-bottom:14px;}
.section-head p{font-size:16px;color:var(--text-sub);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.06em;
  color:var(--orange);background:rgba(226,84,44,.10);
  padding:4px 12px;border-radius:999px;margin-bottom:16px;
}
.eyebrow--green{color:var(--green);background:rgba(31,138,112,.10);}

/* 顶栏 */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  height:var(--header-h);
  background:rgba(247,245,241,.55);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(22,55,94,.08);
  box-shadow:0 8px 24px -16px rgba(16,28,44,.35);
  transition:height .24s cubic-bezier(.4,0,.2,1),background .24s cubic-bezier(.4,0,.2,1),box-shadow .24s cubic-bezier(.4,0,.2,1),border-color .24s cubic-bezier(.4,0,.2,1);
}
.site-header.is-stuck{
  background:rgba(255,255,255,.94);
  box-shadow:var(--shadow-md);
  border-bottom-color:rgba(22,55,94,.14);
}
.header-inner{
  height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:linear-gradient(150deg,var(--ink) 0%,var(--ink-deep) 100%);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-sm);flex-shrink:0;
}
.brand-mark svg{width:22px;height:22px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:16px;font-weight:600;color:var(--ink);letter-spacing:-.2px;}
.brand-text em{font-size:12px;font-style:normal;font-weight:400;color:var(--text-weak);}
.main-nav{display:flex;align-items:center;gap:2px;}
.nav-link{
  position:relative;display:inline-block;
  padding:8px 12px;font-size:15px;font-weight:500;color:var(--text-sub);
  border-radius:8px;white-space:nowrap;
  transition:color .2s cubic-bezier(.4,0,.2,1),background .2s cubic-bezier(.4,0,.2,1);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--orange);border-radius:2px;
  transform:scaleX(0);transform-origin:left center;
  transition:transform .22s cubic-bezier(.4,0,.2,1);
}
.nav-link:hover{color:var(--ink);background:rgba(22,55,94,.05);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.icon-btn{
  width:38px;height:38px;border-radius:50%;
  border:1px solid var(--line);background:rgba(255,255,255,.7);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--ink);cursor:pointer;
  transition:border-color .2s,color .2s,background .2s,transform .2s;
}
.icon-btn svg{width:19px;height:19px;}
.icon-btn:hover{border-color:rgba(22,55,94,.28);color:var(--orange);transform:translateY(-1px);}
.menu-btn{
  display:none;width:40px;height:40px;border-radius:10px;
  border:1px solid var(--line);background:rgba(255,255,255,.75);
  align-items:center;justify-content:center;cursor:pointer;color:var(--ink);
}
.menu-btn svg{width:20px;height:20px;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-weight:600;font-size:15px;
  padding:13px 24px;border:1.5px solid transparent;cursor:pointer;
  transition:background .2s cubic-bezier(.4,0,.2,1),color .2s cubic-bezier(.4,0,.2,1),border-color .2s,box-shadow .2s cubic-bezier(.4,0,.2,1),transform .2s cubic-bezier(.4,0,.2,1);
  line-height:1.3;text-align:center;
}
.btn-primary{background:var(--orange);color:#fff;box-shadow:var(--shadow-sm);}
.btn-primary:hover{background:var(--orange-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-lg);}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-outline:hover{background:rgba(22,55,94,.06);color:var(--ink);transform:translateY(-2px);}
.btn-ghost{background:rgba(255,255,255,.8);color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{background:#fff;color:var(--ink);border-color:rgba(22,55,94,.24);transform:translateY(-2px);box-shadow:var(--shadow-md);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--ink);
}
.link-arrow svg{width:16px;height:16px;transition:transform .2s cubic-bezier(.4,0,.2,1);}
.link-arrow:hover svg{transform:translateX(4px);}
.link-arrow:hover{color:var(--orange);}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;left:0;right:0;top:var(--header-h);bottom:0;
  background:#F7F5F1;padding:24px;
  overflow-y:auto;z-index:999;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .22s cubic-bezier(.4,0,.2,1),transform .22s cubic-bezier(.4,0,.2,1),visibility .22s;
}
.mobile-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:24px;}
.drawer-link{
  display:block;padding:14px 12px;font-size:18px;font-weight:500;color:var(--ink);
  border-bottom:1px solid var(--divider);border-radius:8px;
}
.drawer-link:hover{background:rgba(22,55,94,.05);color:var(--orange);}
.drawer-link.is-active{color:var(--orange);font-weight:600;}

/* 页面 Hero */
.page-hero{
  padding:132px 0 56px;
  background-color:var(--bg);
  background-image:
    repeating-linear-gradient(0deg,rgba(22,55,94,.045) 0 1px,transparent 1px 28px),
    repeating-linear-gradient(90deg,rgba(22,55,94,.045) 0 1px,transparent 1px 28px),
    radial-gradient(120% 90% at 88% -10%,rgba(226,84,44,.10) 0%,rgba(226,84,44,0) 60%);
  border-bottom:1px solid var(--line);
}
.breadcrumb-list{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-weak);margin-bottom:18px;
}
.breadcrumb-list a{color:var(--text-sub);}
.breadcrumb-list a:hover{color:var(--orange);}
.breadcrumb-list li+li::before{content:"/";margin-right:8px;color:#C3CBD6;}
.breadcrumb-list li{display:inline-flex;align-items:center;}
.page-hero h1{
  font-size:clamp(28px,4.2vw,46px);font-weight:700;line-height:1.18;letter-spacing:-.5px;
  margin-bottom:16px;
}
.page-hero .hero-sub{font-size:17px;color:var(--text-sub);max-width:640px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:999px;font-size:13px;font-weight:600;
  background:rgba(22,55,94,.07);color:var(--ink);
}
.tag--orange{background:rgba(226,84,44,.10);color:var(--orange-deep);}
.tag--green{background:rgba(31,138,112,.10);color:var(--green);}

/* 页内锚点条 */
.subnav{
  position:sticky;top:var(--header-h);z-index:900;
  background:rgba(247,245,241,.92);
  -webkit-backdrop-filter:blur(10px) saturate(140%);
  backdrop-filter:blur(10px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:top .24s cubic-bezier(.4,0,.2,1);
}
.subnav-inner{
  max-width:1200px;margin:0 auto;padding:0 24px;
  display:flex;align-items:center;gap:6px;
  height:56px;overflow-x:auto;scrollbar-width:none;
}
.subnav-inner::-webkit-scrollbar{display:none;}
.subnav-link{
  position:relative;flex-shrink:0;
  padding:8px 12px;font-size:15px;font-weight:500;color:var(--text-sub);
  border-radius:8px;transition:color .2s,background .2s;
}
.subnav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;
  background:var(--orange);border-radius:2px;transform:scaleX(0);
  transition:transform .22s cubic-bezier(.4,0,.2,1);
}
.subnav-link:hover{color:var(--ink);background:rgba(22,55,94,.05);}
.subnav-link.is-active{color:var(--ink);font-weight:600;}
.subnav-link.is-active::after{transform:scaleX(1);}

/* 时间轴 */
.timeline{display:grid;gap:28px;}
.step{display:grid;grid-template-columns:56px minmax(0,1fr);gap:24px;}
.step-rail{position:relative;display:flex;justify-content:flex-start;}
.step-rail::after{
  content:"";position:absolute;left:15.5px;top:46px;bottom:-28px;
  border-left:1px dashed #D7DCE3;
}
.step:last-child .step-rail::after{display:none;}
.step-num{
  width:32px;height:32px;border-radius:50%;
  background:rgba(22,55,94,.08);color:var(--ink);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;
  flex-shrink:0;letter-spacing:0;
}
.step-body{
  background:var(--bg-white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--shadow-md);
  display:grid;
  grid-template-columns:minmax(0,1fr) 216px;
  gap:24px;
  align-items:start;
  transition:box-shadow .22s cubic-bezier(.4,0,.2,1),transform .22s cubic-bezier(.4,0,.2,1),border-color .22s;
}
.step-text h3{font-size:20px;font-weight:600;line-height:1.4;margin-bottom:10px;}
.step-text p{font-size:15px;color:var(--text-sub);}
.check-list{margin-top:14px;display:grid;gap:8px;}
.check-list li{
  position:relative;padding-left:24px;font-size:14.5px;color:var(--text-sub);
}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;width:12px;height:7px;
  border-left:2px solid var(--green);border-bottom:2px solid var(--green);
  transform:rotate(-45deg);border-radius:1px;
}
.step-media{border-radius:12px;overflow:hidden;background:var(--bg-gray);}
.step-media img{width:100%;height:148px;object-fit:cover;}

/* 提示条 */
.notice-bar{
  display:flex;gap:16px;align-items:flex-start;
  background:rgba(226,84,44,.06);
  border:1px solid rgba(226,84,44,.18);
  border-left:3px solid var(--orange);
  border-radius:12px;
  padding:20px 24px;margin-top:36px;
}
.notice-bar svg{width:22px;height:22px;color:var(--orange);flex-shrink:0;margin-top:2px;}
.notice-bar h4{font-size:16px;font-weight:600;margin-bottom:6px;}
.notice-bar p{font-size:14.5px;color:var(--text-sub);}

/* 关键节点卡 */
.node-grid{
  display:grid;grid-template-columns:1.15fr 1fr 1fr;gap:24px;
}
.node-card{
  background:var(--bg-white);border:1px solid var(--line);
  border-radius:var(--r-card);padding:26px;box-shadow:var(--shadow-md);
  display:flex;flex-direction:column;gap:12px;
  transition:box-shadow .22s,transform .22s,border-color .22s;
}
.node-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px);border-color:rgba(22,55,94,.18);}
.node-card--lead{
  background:linear-gradient(160deg,var(--ink) 0%,var(--ink-deep) 100%);
  border-color:transparent;color:#F7F5F1;
}
.node-card--lead h3{color:#F7F5F1;}
.node-card--lead p{color:rgba(247,245,241,.78);}
.node-card--lead .node-index{color:rgba(247,245,241,.45);}
.node-index{
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--text-weak);font-variant-numeric:tabular-nums;
}
.node-card h3{font-size:19px;font-weight:600;line-height:1.4;}
.node-card p{font-size:14.5px;color:var(--text-sub);}
.node-stat{
  display:flex;align-items:baseline;gap:8px;margin-top:auto;padding-top:14px;
  border-top:1px solid var(--divider);
}
.node-card--lead .node-stat{border-top-color:rgba(247,245,241,.16);}
.node-stat strong{
  font-size:30px;font-weight:700;color:var(--orange);
  font-variant-numeric:tabular-nums;line-height:1;
}
.node-card--lead .node-stat strong{color:#FF8A63;}
.node-stat span{font-size:13px;color:var(--text-weak);}
.node-card--lead .node-stat span{color:rgba(247,245,241,.6);}

/* FAQ */
.faq-wrap{display:grid;grid-template-columns:340px minmax(0,1fr);gap:56px;align-items:start;}
.faq-aside h2{font-size:32px;font-weight:650;line-height:1.3;margin-bottom:14px;}
.faq-aside p{font-size:15px;color:var(--text-sub);margin-bottom:22px;}
.accordion-item{
  background:transparent;border:0;border-bottom:1px solid var(--divider);
  border-radius:0;
}
.accordion-item:first-of-type{border-top:1px solid var(--divider);}
.accordion-button{
  background:transparent;border:0;border-radius:0 !important;
  padding:20px 0;font-size:17px;font-weight:600;color:var(--text);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  box-shadow:none !important;
}
.accordion-button:not(.collapsed){color:var(--ink);background:transparent;}
.accordion-button::after{display:none;}
.acc-sign{
  width:28px;height:28px;border-radius:50%;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;
  flex-shrink:0;color:var(--ink);font-size:16px;line-height:1;
  transition:transform .22s cubic-bezier(.4,0,.2,1),border-color .22s,color .22s,background .22s;
}
.accordion-button:not(.collapsed) .acc-sign{
  border-color:var(--orange);color:var(--orange);background:rgba(226,84,44,.08);
  transform:rotate(45deg);
}
.accordion-body{
  padding:0 0 22px 0;font-size:15px;color:var(--text-sub);line-height:1.85;
  border-left:3px solid transparent;padding-left:0;
}
.accordion-item.is-open .accordion-body{border-left:3px solid var(--orange);padding-left:16px;}
.faq-foot{margin-top:28px;}

/* CTA */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--ink);
  border-radius:var(--r-lg);
  padding:56px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:40px;
  color:#F7F5F1;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.16;
}
.cta-band > *{position:relative;z-index:1;}
.cta-band h2{color:#F7F5F1;font-size:30px;font-weight:650;line-height:1.3;margin-bottom:10px;}
.cta-band p{color:rgba(247,245,241,.78);font-size:15.5px;max-width:560px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex-shrink:0;}
.cta-band .btn-outline{color:#F7F5F1;border-color:rgba(247,245,241,.6);}
.cta-band .btn-outline:hover{background:rgba(247,245,241,.12);color:#fff;}

/* 页脚 */
.site-footer{
  background:var(--ink);color:#F7F5F1;padding:72px 0 32px;margin-top:88px;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:48px;
}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand .brand-text strong{color:#F7F5F1;}
.footer-brand .brand-text em{color:rgba(247,245,241,.6);}
.footer-brand p{font-size:14.5px;color:rgba(247,245,241,.72);line-height:1.85;max-width:320px;}
.socials{display:flex;gap:10px;margin-top:22px;}
.socials a{
  width:36px;height:36px;border-radius:50%;
  border:1px solid rgba(247,245,241,.24);
  display:inline-flex;align-items:center;justify-content:center;
  color:rgba(247,245,241,.85);
  transition:border-color .2s,color .2s,background .2s,transform .2s;
}
.socials a svg{width:17px;height:17px;}
.socials a:hover{border-color:var(--orange);color:var(--orange);background:rgba(226,84,44,.10);transform:translateY(-2px);}
.footer-col h4{font-size:15px;font-weight:600;color:#F7F5F1;margin-bottom:18px;}
.footer-col ul{display:grid;gap:12px;}
.footer-col a{font-size:14px;color:rgba(247,245,241,.72);}
.footer-col a:hover{color:var(--orange);}
.footer-info{display:grid;gap:12px;}
.footer-info li{font-size:14px;color:rgba(247,245,241,.72);display:flex;gap:10px;}
.footer-info li span:first-child{color:rgba(247,245,241,.45);flex-shrink:0;}
.footer-divider{height:1px;background:rgba(255,255,255,.12);margin:44px 0 24px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(247,245,241,.6);
}
.footer-bottom p{margin:0;}
.footer-bottom a{color:rgba(247,245,241,.7);}
.footer-bottom a:hover{color:var(--orange);}

/* 响应式 */
@media (max-width:1199px){
  .main-nav{gap:0;}
  .nav-link{padding:8px 9px;font-size:14.5px;}
}
@media (max-width:991px){
  .main-nav{display:none;}
  .header-actions .btn{display:none;}
  .menu-btn{display:inline-flex;}
  .section{padding:64px 0;}
  .node-grid{grid-template-columns:1fr 1fr;}
  .node-card--lead{grid-column:1 / -1;}
  .faq-wrap{grid-template-columns:1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:44px 32px;gap:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .step-body{grid-template-columns:1fr;}
  .step-media img{height:180px;}
  .step-media{order:2;}
}
@media (max-width:767px){
  .container{padding-left:20px;padding-right:20px;}
  .section{padding:56px 0;}
  .page-hero{padding:118px 0 44px;}
  .section-head h2,.faq-aside h2{font-size:24px;}
  .node-grid{grid-template-columns:1fr;}
  .node-card--lead{grid-column:auto;}
  .step{grid-template-columns:40px minmax(0,1fr);gap:14px;}
  .step-num{width:28px;height:28px;font-size:12px;}
  .step-rail::after{left:13.5px;top:40px;}
  .step-body{padding:20px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .cta-band{padding:36px 24px;border-radius:16px;}
  .cta-band h2{font-size:23px;}
  .brand-text strong{font-size:15px;}
  .brand-text em{font-size:11px;}
}
@media (max-width:575px){
  .subnav-inner{height:52px;padding:0 20px;}
  .subnav-link{font-size:14px;padding:8px 10px;}
  .hero-tags{gap:8px;}
  .notice-bar{padding:18px;}
  .footer-bottom{flex-direction:column;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .node-card:hover,.btn:hover{transform:none !important;}
}
@media (hover:hover){
  .step-body:hover{box-shadow:var(--shadow-lg);border-color:rgba(22,55,94,.18);transform:translateY(-2px);}
}

/* roulang page: category3 */
:root{
  --ink:#16375E;
  --ink-deep:#0E2745;
  --orange:#E2542C;
  --orange-deep:#C8461F;
  --green:#1F8A70;
  --bg:#F7F5F1;
  --surface:#FFFFFF;
  --gray:#EEF1F5;
  --text:#101C2C;
  --text-2:#4A5A6E;
  --text-3:#7C8A9C;
  --line:#E3E7EC;
  --divider:#EDEFF2;
  --focus:rgba(226,84,44,.20);
  --r-card:16px;
  --r-block:24px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-sm:0 1px 2px rgba(16,28,44,.06);
  --sh-md:0 8px 24px -12px rgba(16,28,44,.18);
  --sh-lg:0 18px 40px -18px rgba(16,28,44,.24);
  --ease:cubic-bezier(.4,0,.2,1);
  --header-h:76px;
  --bs-primary:#16375E;
  --bs-body-font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --bs-body-color:#101C2C;
  --bs-border-radius:10px;
  --bs-border-color:#E3E7EC;
  --bs-link-color:#16375E;
  --bs-link-hover-color:#E2542C;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--bs-body-font-family);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  padding-top:76px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--orange);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}

/* ---------- 品牌 / 头部导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1040;
  height:76px;
  display:flex;
  align-items:center;
  background:rgba(247,245,241,.55);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(22,55,94,.08);
  box-shadow:0 8px 24px -16px rgba(16,28,44,.35);
  transition:height .24s var(--ease),background .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-stuck{
  height:64px;
  background:rgba(255,255,255,.94);
  box-shadow:var(--sh-md);
  border-bottom-color:rgba(22,55,94,.14);
}
.header-inner{display:flex;align-items:center;gap:24px;width:100%;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:linear-gradient(150deg,var(--ink) 0%,var(--ink-deep) 100%);
  display:grid;place-items:center;
  box-shadow:var(--sh-sm);
  transition:transform .22s var(--ease);
}
.brand:hover .brand-mark{transform:translateY(-2px);}
.brand-mark svg{width:21px;height:21px;}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:16px;font-weight:600;color:var(--ink);letter-spacing:-.2px;}
.brand-text em{font-size:11px;font-style:normal;font-weight:400;color:var(--text-3);letter-spacing:.6px;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.main-nav a{
  position:relative;
  font-size:14.5px;
  font-weight:500;
  color:var(--text-2);
  padding:8px 10px;
  border-radius:8px;
  white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:10px;right:10px;bottom:2px;height:2px;
  background:var(--orange);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.main-nav a:hover,.main-nav a:focus-visible{color:var(--ink);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.is-active{color:var(--ink);font-weight:600;}
.main-nav a.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.icon-btn{
  width:40px;height:40px;border-radius:10px;
  border:1px solid var(--line);background:rgba(255,255,255,.7);
  display:grid;place-items:center;color:var(--ink);cursor:pointer;
  transition:background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.icon-btn:hover{background:#fff;border-color:rgba(22,55,94,.18);transform:translateY(-2px);}
.icon-btn svg{width:20px;height:20px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);
  font-weight:600;
  font-size:15px;
  padding:13px 24px;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
  text-align:center;
  line-height:1.4;
}
.btn-primary{background:var(--orange);color:#fff;box-shadow:var(--sh-sm);}
.btn-primary:hover,.btn-primary:focus-visible{background:var(--orange-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-lg);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover,.btn-ghost:focus-visible{background:rgba(22,55,94,.06);color:var(--ink);transform:translateY(-2px);}
.btn-light{background:#fff;color:var(--ink);border-color:var(--line);}
.btn-light:hover{background:#fff;border-color:rgba(22,55,94,.2);color:var(--ink);transform:translateY(-2px);box-shadow:var(--sh-md);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:14.5px;color:var(--ink);}
.link-arrow svg{width:16px;height:16px;transition:transform .2s var(--ease);}
.link-arrow:hover svg{transform:translateX(4px);}

/* ---------- 移动端抽屉 ---------- */
.hamburger{
  display:none;width:40px;height:40px;border-radius:10px;
  border:1px solid var(--line);background:#fff;cursor:pointer;
  align-items:center;justify-content:center;color:var(--ink);
}
.hamburger span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative;}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px;
  transition:transform .2s var(--ease),top .2s var(--ease);
}
.hamburger span::before{top:-6px;}
.hamburger span::after{top:6px;}
.mobile-drawer{
  position:fixed;inset:0;z-index:1039;
  background:rgba(247,245,241,.98);
  backdrop-filter:blur(8px);
  padding:104px 24px 32px;
  display:flex;flex-direction:column;gap:6px;
  transform:translateY(-100%);
  opacity:0;visibility:hidden;
  transition:transform .28s var(--ease),opacity .24s var(--ease),visibility .24s;
}
.mobile-drawer.is-open{transform:translateY(0);opacity:1;visibility:visible;}
.mobile-drawer a.drawer-link{
  font-size:18px;font-weight:500;color:var(--ink);
  padding:14px 4px;border-bottom:1px solid var(--divider);
}
.mobile-drawer a.drawer-link.is-active{color:var(--orange);font-weight:600;}
.mobile-drawer .btn{margin-top:20px;}
body.no-scroll{overflow:hidden;}

/* ---------- 分类页面包屑 + 短 Hero ---------- */
.crumb-bar{padding:20px 0 0;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);}
.crumbs li{display:flex;align-items:center;gap:8px;}
.crumbs li::after{content:"/";color:#C6CED8;}
.crumbs li:last-child::after{content:"";}
.crumbs a{color:var(--text-2);}
.crumbs a:hover{color:var(--orange);}
.crumbs .current{color:var(--ink);font-weight:600;}
.page-hero{
  position:relative;
  margin-top:16px;
  padding:48px 0 52px;
  background:
    radial-gradient(circle at 88% 12%,rgba(226,84,44,.10) 0,transparent 42%),
    linear-gradient(180deg,#FBF9F5 0%,#F3F0EA 100%);
  border-radius:var(--r-block);
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(22,55,94,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(22,55,94,.05) 1px,transparent 1px);
  background-size:34px 34px;
  opacity:.55;pointer-events:none;
}
.page-hero-inner{position:relative;max-width:820px;}
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(226,84,44,.10);color:var(--orange-deep);
  font-size:12px;font-weight:600;letter-spacing:.3px;
  padding:5px 13px;border-radius:var(--r-pill);
  margin-bottom:16px;
}
.badge-pill.green{background:rgba(31,138,112,.12);color:#136B57;}
.badge-pill.ink{background:rgba(22,55,94,.09);color:var(--ink);}
.page-hero h1{
  font-size:clamp(27px,3.6vw,40px);
  font-weight:700;
  line-height:1.2;
  letter-spacing:-.5px;
  color:var(--ink);
  margin-bottom:14px;
}
.page-hero p{font-size:16px;color:var(--text-2);max-width:660px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.hero-tags span{
  font-size:13px;color:var(--ink);background:#fff;
  border:1px solid var(--line);border-radius:var(--r-pill);
  padding:6px 14px;box-shadow:var(--sh-sm);
}

/* ---------- 页面内锚点子导航 ---------- */
.page-nav-wrap{
  position:sticky;
  top:var(--header-h);
  z-index:1020;
  margin-top:20px;
  background:rgba(247,245,241,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--divider);
  transition:top .24s var(--ease);
}
.page-nav{display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;padding:10px 0;}
.page-nav::-webkit-scrollbar{display:none;}
.page-nav a{
  flex:0 0 auto;
  font-size:14px;font-weight:500;color:var(--text-2);
  padding:8px 14px;border-radius:var(--r-pill);
  border:1px solid transparent;
  transition:all .2s var(--ease);
}
.page-nav a:hover{color:var(--ink);background:#fff;border-color:var(--line);}
.page-nav a.is-active{color:var(--orange-deep);background:rgba(226,84,44,.10);border-color:rgba(226,84,44,.22);}

/* ---------- 通用板块 ---------- */
.section{padding:72px 0;}
.section.tight{padding:56px 0;}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head h2{
  font-size:clamp(24px,3vw,32px);
  font-weight:650;line-height:1.3;letter-spacing:-.4px;color:var(--ink);
  margin-bottom:12px;
}
.section-head p{color:var(--text-2);font-size:15.5px;}
.eyebrow{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:1.6px;
  color:var(--orange-deep);text-transform:uppercase;margin-bottom:10px;
}

/* ---------- Z 字图文块 ---------- */
.zrow{
  display:grid;
  grid-template-columns:1.02fr 1fr;
  gap:clamp(24px,4vw,56px);
  align-items:center;
  padding:44px 0;
  border-bottom:1px solid var(--divider);
}
.zrow:last-of-type{border-bottom:none;}
.zrow.reverse .zmedia{order:2;}
.zmedia{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-md);
  background:var(--gray);
  aspect-ratio:16/11;
}
.zmedia img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.zmedia:hover img{transform:scale(1.03);}
.zmedia::after{
  content:"";position:absolute;inset:auto 0 0 0;height:38%;
  background:linear-gradient(180deg,rgba(16,28,44,0) 0%,rgba(16,28,44,.32) 100%);
  pointer-events:none;
}
.zmedia-tag{
  position:absolute;left:16px;bottom:14px;z-index:2;
  font-size:12.5px;font-weight:600;color:#fff;
  background:rgba(22,55,94,.72);border:1px solid rgba(255,255,255,.25);
  padding:5px 12px;border-radius:var(--r-pill);
  backdrop-filter:blur(4px);
}
.ztext h2{
  font-size:clamp(22px,2.5vw,28px);
  font-weight:650;line-height:1.32;color:var(--ink);
  letter-spacing:-.3px;margin:14px 0 12px;
}
.ztext p{color:var(--text-2);font-size:15.5px;margin-bottom:16px;}
.tick-list{display:flex;flex-direction:column;gap:10px;margin-bottom:20px;}
.tick-list li{display:flex;gap:10px;font-size:15px;color:var(--text-2);line-height:1.7;}
.tick-list svg{flex:0 0 18px;width:18px;height:18px;margin-top:4px;color:var(--green);}

/* ---------- 参数条 ---------- */
.spec-bar{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:#fff;border:1px solid var(--line);border-radius:14px;
  overflow:hidden;box-shadow:var(--sh-sm);margin-top:22px;
}
.spec-bar div{padding:14px 10px;text-align:center;border-left:1px solid var(--divider);}
.spec-bar div:first-child{border-left:none;}
.spec-bar strong{
  display:block;font-size:19px;font-weight:700;color:var(--ink);
  font-variant-numeric:tabular-nums;line-height:1.3;
}
.spec-bar span{font-size:12px;color:var(--text-3);}

/* ---------- 方案对照卡 ---------- */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.plan-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh-md);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  display:flex;flex-direction:column;
}
.plan-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);border-color:rgba(22,55,94,.18);}
.plan-card .num{
  font-size:13px;font-weight:700;color:var(--orange-deep);
  font-variant-numeric:tabular-nums;letter-spacing:1px;margin-bottom:10px;
}
.plan-card h3{font-size:19px;font-weight:600;color:var(--ink);margin-bottom:8px;}
.plan-card p{font-size:14.5px;color:var(--text-2);margin-bottom:16px;}
.plan-card dl{margin:0 0 18px;display:flex;flex-direction:column;gap:8px;}
.plan-card dl div{display:flex;justify-content:space-between;gap:12px;font-size:13.5px;border-bottom:1px dashed var(--divider);padding-bottom:8px;}
.plan-card dt{color:var(--text-3);font-weight:400;}
.plan-card dd{margin:0;color:var(--ink);font-weight:600;}
.plan-card .link-arrow{margin-top:auto;}

/* ---------- 深色转化带 ---------- */
.cta-band{
  background:linear-gradient(120deg,var(--ink) 0%,var(--ink-deep) 100%);
  border-radius:var(--r-block);
  padding:clamp(36px,5vw,60px) clamp(28px,5vw,64px);
  color:#F7F5F1;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-70px;width:260px;height:260px;
  border:1px solid rgba(255,255,255,.14);border-radius:50%;
  box-shadow:0 0 0 40px rgba(255,255,255,.05);
  pointer-events:none;
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:650;color:#fff;margin-bottom:10px;letter-spacing:-.3px;}
.cta-band p{font-size:15px;color:rgba(247,245,241,.78);max-width:560px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1;}
.cta-band .btn-ghost{color:#fff;border-color:rgba(255,255,255,.55);}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:.85fr 1.4fr;gap:48px;align-items:start;}
.faq-aside h2{font-size:clamp(24px,2.8vw,30px);font-weight:650;color:var(--ink);line-height:1.3;margin-bottom:14px;letter-spacing:-.3px;}
.faq-aside p{color:var(--text-2);font-size:15px;margin-bottom:22px;}
.faq-list{display:flex;flex-direction:column;}
.faq-item{border-bottom:1px solid var(--divider);position:relative;}
.faq-item:first-child{border-top:1px solid var(--divider);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0 20px 0;
  font-size:16.5px;font-weight:600;color:var(--ink);
  transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--orange-deep);}
.faq-item summary .plus{
  flex:0 0 28px;width:28px;height:28px;border-radius:50%;
  border:1.5px solid var(--line);display:grid;place-items:center;
  color:var(--ink);position:relative;transition:all .22s var(--ease);
}
.faq-item summary .plus::before,.faq-item summary .plus::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
}
.faq-item summary .plus::before{width:12px;height:1.75px;}
.faq-item summary .plus::after{width:1.75px;height:12px;transition:transform .22s var(--ease),opacity .22s var(--ease);}
.faq-item[open] summary{color:var(--ink);padding-left:14px;}
.faq-item[open] summary::before{
  content:"";position:absolute;left:0;top:20px;bottom:20px;width:3px;
  background:var(--orange);border-radius:2px;
}
.faq-item[open] summary .plus{border-color:var(--orange);color:var(--orange);transform:rotate(180deg);}
.faq-item[open] summary .plus::after{opacity:0;transform:rotate(90deg);}
.faq-body{padding:0 0 22px 14px;font-size:15px;color:var(--text-2);line-height:1.85;}
.faq-body strong{color:var(--ink);font-weight:600;}

/* ---------- 提示条 ---------- */
.notice{
  display:flex;gap:14px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-left:3px solid var(--orange);
  border-radius:12px;padding:18px 20px;box-shadow:var(--sh-sm);margin-top:32px;
}
.notice svg{flex:0 0 22px;width:22px;height:22px;color:var(--orange);margin-top:3px;}
.notice p{font-size:14.5px;color:var(--text-2);margin:0;}
.notice strong{color:var(--ink);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#F7F5F1;padding:64px 0 28px;margin-top:80px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-text strong{color:#fff;}
.footer-brand .brand-text em{color:rgba(247,245,241,.6);}
.footer-brand p{font-size:14px;color:rgba(247,245,241,.72);line-height:1.85;max-width:300px;}
.socials{display:flex;gap:10px;margin-top:20px;}
.socials a{
  width:36px;height:36px;border-radius:50%;
  border:1px solid rgba(255,255,255,.28);
  display:grid;place-items:center;color:rgba(247,245,241,.85);
  transition:all .2s var(--ease);
}
.socials a:hover{border-color:var(--orange);color:var(--orange);transform:translateY(-2px);}
.socials svg{width:17px;height:17px;}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:rgba(247,245,241,.72);}
.footer-col a:hover{color:#fff;}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:rgba(247,245,241,.72);line-height:1.7;}
.footer-contact svg{flex:0 0 17px;width:17px;height:17px;margin-top:4px;color:rgba(247,245,241,.5);}
.footer-bottom{
  margin-top:48px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(247,245,241,.7);
}
.footer-bottom span{display:inline-block;}
.footer-bottom a{color:rgba(247,245,241,.7);}
.footer-bottom a:hover{color:#fff;}

/* ---------- 锚点偏移 ---------- */
[id]{scroll-margin-top:calc(var(--header-h) + 78px);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .main-nav a{font-size:13.5px;padding:8px 7px;}
}
@media (max-width:991px){
  .main-nav{display:none;}
  .hamburger{display:flex;}
  .header-actions .btn-primary{display:none;}
  .zrow{grid-template-columns:1fr;gap:26px;padding:34px 0;}
  .zrow.reverse .zmedia{order:0;}
  .plan-grid{grid-template-columns:1fr 1fr;}
  .faq-layout{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:60px 0;}
}
@media (max-width:767px){
  body{padding-top:64px;}
  .site-header{height:64px;}
  .site-header.is-stuck{height:56px;}
  :root{--header-h:64px;}
  .page-hero{padding:36px 0 40px;border-radius:18px;}
  .brand-text strong{font-size:15px;}
  .spec-bar{grid-template-columns:1fr 1fr;}
  .spec-bar div:nth-child(3){border-left:none;border-top:1px solid var(--divider);}
  .spec-bar div:nth-child(4){border-top:1px solid var(--divider);}
  .plan-grid{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .section{padding:52px 0;}
  .container{padding-left:20px;padding-right:20px;}
}
@media (max-width:480px){
  .hero-tags span{font-size:12px;padding:5px 12px;}
  .btn{width:100%;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
  .zmedia:hover img{transform:none;}
}

/* roulang page: category4 */
:root{
  --ink:#16375E;
  --ink-deep:#0E2745;
  --ink-soft:#2A4A73;
  --orange:#E2542C;
  --orange-deep:#C8461F;
  --green:#1F8A70;
  --bg:#F7F5F1;
  --bg-white:#FFFFFF;
  --bg-gray:#EEF1F5;
  --text:#101C2C;
  --text-2:#4A5A6E;
  --text-3:#7C8A9C;
  --border:#E3E7EC;
  --line:#EDEFF2;
  --focus:rgba(226,84,44,.20);
  --r-card:16px;
  --r-lg:24px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-sm:0 1px 2px rgba(16,28,44,.06);
  --sh-md:0 8px 24px -12px rgba(16,28,44,.18);
  --sh-lg:0 18px 40px -18px rgba(16,28,44,.24);
  --t:220ms cubic-bezier(.4,0,.2,1);
  --nav-h:76px;
  --bs-body-font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --bs-primary:#16375E;
  --bs-border-radius:16px;
  --bs-link-color:#16375E;
  --bs-link-hover-color:#E2542C;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;display:block;}
a{color:var(--ink);text-decoration:none;transition:color var(--t),opacity var(--t);}
a:hover{color:var(--orange);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--text);letter-spacing:-.2px;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:none;box-shadow:0 0 0 3px var(--focus);border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section--gray{background:var(--bg-gray);}
.section--white{background:var(--bg-white);}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--orange);letter-spacing:1px;margin-bottom:14px;}
.section-head .eyebrow::before{content:"";width:22px;height:2px;background:var(--orange);border-radius:2px;}
.section-head h2{font-size:32px;font-weight:650;line-height:1.3;margin-bottom:14px;}
.section-head p{color:var(--text-2);font-size:16px;margin:0;}

/* ============ 导航 ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1040;
  height:var(--nav-h);
  display:flex;
  align-items:center;
  background:rgba(247,245,241,.55);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(22,55,94,.08);
  box-shadow:0 8px 24px -16px rgba(16,28,44,.35);
  transition:background var(--t),box-shadow var(--t),border-color var(--t);
}
.site-header.is-stuck{
  background:rgba(255,255,255,.94);
  box-shadow:var(--sh-md);
  border-bottom-color:rgba(22,55,94,.14);
}
.header-inner{
  width:100%;max-width:1240px;margin:0 auto;padding:0 24px;
  display:flex;align-items:center;gap:24px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:linear-gradient(150deg,var(--ink) 0%,var(--ink-deep) 100%);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-sm);
}
.brand-mark svg{width:22px;height:22px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:16px;font-weight:600;color:var(--ink);letter-spacing:-.2px;}
.brand-text em{font-style:normal;font-size:12px;font-weight:400;color:var(--text-3);}
.main-nav{display:flex;align-items:center;gap:22px;margin-left:auto;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--text-2);
  padding:6px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--orange);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform 200ms cubic-bezier(.4,0,.2,1);
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.icon-btn{
  width:38px;height:38px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--border);background:rgba(255,255,255,.7);color:var(--ink);
  cursor:pointer;transition:all var(--t);
}
.icon-btn:hover{border-color:rgba(22,55,94,.24);color:var(--orange);background:#fff;}
.icon-btn svg{width:18px;height:18px;}
.menu-toggle{
  display:none;width:40px;height:40px;border-radius:10px;
  border:1px solid var(--border);background:rgba(255,255,255,.7);
  align-items:center;justify-content:center;cursor:pointer;color:var(--ink);
}
.menu-toggle svg{width:20px;height:20px;}

/* 按钮 */
.btn-base{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:14px 26px;border-radius:var(--r-btn);
  border:1.5px solid transparent;cursor:pointer;
  transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t),border-color var(--t);
  white-space:nowrap;
}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 10px 22px -14px rgba(226,84,44,.85);}
.btn-primary:hover{background:var(--orange-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-lg);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:rgba(22,55,94,.07);color:var(--ink);transform:translateY(-2px);}
.btn-light{background:#fff;color:var(--ink);border-color:transparent;box-shadow:var(--sh-md);}
.btn-light:hover{background:#F2EFE9;color:var(--ink);transform:translateY(-2px);}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-wide{width:100%;}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;inset:0;z-index:1050;
  background:rgba(16,28,44,.35);
  opacity:0;visibility:hidden;transition:opacity var(--t),visibility var(--t);
}
.mobile-drawer.is-open{opacity:1;visibility:visible;}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(86vw,360px);
  background:#FBF9F5;padding:20px 22px 28px;
  display:flex;flex-direction:column;gap:6px;
  transform:translateX(100%);transition:transform 260ms cubic-bezier(.4,0,.2,1);
  overflow-y:auto;
}
.mobile-drawer.is-open .drawer-panel{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;}
.drawer-head .brand-text strong{font-size:15px;}
.drawer-close{
  width:36px;height:36px;border-radius:50%;border:1px solid var(--border);
  background:#fff;color:var(--ink);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
}
.drawer-link{
  display:block;padding:14px 4px;font-size:17px;font-weight:500;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.drawer-link.is-active{color:var(--orange);font-weight:600;}
.drawer-foot{margin-top:auto;padding-top:22px;}

/* ============ 内页 Hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--bg);
  border-bottom:1px solid var(--border);
  padding:calc(var(--nav-h) + 34px) 0 44px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(22,55,94,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(22,55,94,.055) 1px,transparent 1px);
  background-size:44px 44px;
  mask-image:linear-gradient(115deg,rgba(0,0,0,.9),rgba(0,0,0,0) 72%);
  -webkit-mask-image:linear-gradient(115deg,rgba(0,0,0,.9),rgba(0,0,0,0) 72%);
  pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;top:0;right:0;bottom:0;width:46%;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  opacity:.22;
  mask-image:linear-gradient(90deg,transparent,#000 60%);
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 60%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:18px;}
.crumb li{display:inline-flex;align-items:center;gap:8px;}
.crumb li::after{content:"/";color:#C6CED8;}
.crumb li:last-child::after{content:"";}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--orange);}
.crumb .current{color:var(--ink);font-weight:500;max-width:46vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.page-hero .hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(226,84,44,.10);color:var(--orange-deep);
  border-radius:var(--r-pill);padding:5px 14px;font-size:12px;font-weight:600;margin-bottom:14px;
}
.page-hero h1{
  font-size:clamp(26px,3.6vw,40px);font-weight:700;line-height:1.22;letter-spacing:-.5px;
  max-width:760px;margin-bottom:12px;
}
.page-hero .hero-desc{color:var(--text-2);font-size:16px;max-width:620px;margin:0;}

/* 锚点条 */
.anchor-bar{
  position:sticky;top:var(--nav-h);z-index:1020;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
}
.anchor-inner{
  display:flex;gap:8px;overflow-x:auto;padding:10px 24px;max-width:1200px;margin:0 auto;
  scrollbar-width:none;
}
.anchor-inner::-webkit-scrollbar{display:none;}
.anchor-link{
  flex:0 0 auto;font-size:14px;font-weight:500;color:var(--text-2);
  padding:8px 16px;border-radius:var(--r-pill);border:1px solid transparent;
  transition:all var(--t);
}
.anchor-link:hover{color:var(--ink);background:var(--bg-gray);}
.anchor-link.is-active{color:var(--ink);background:rgba(22,55,94,.07);border-color:rgba(22,55,94,.12);font-weight:600;}

/* ============ 概览 ============ */
.overview-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.overview-copy h2{font-size:32px;font-weight:650;line-height:1.3;margin-bottom:18px;}
.overview-copy > p{color:var(--text-2);font-size:16px;margin-bottom:24px;}
.terminal-list{display:flex;flex-direction:column;gap:14px;}
.terminal-item{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--bg-white);border:1px solid var(--border);border-radius:var(--r-card);
  padding:16px 18px;box-shadow:var(--sh-sm);transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.terminal-item:hover{transform:translateY(-3px);box-shadow:var(--sh-md);border-color:rgba(22,55,94,.18);}
.terminal-ico{
  flex:0 0 auto;width:38px;height:38px;border-radius:10px;
  background:rgba(31,138,112,.10);color:var(--green);
  display:inline-flex;align-items:center;justify-content:center;
}
.terminal-ico svg{width:20px;height:20px;}
.terminal-item h3{font-size:16px;font-weight:600;margin-bottom:2px;}
.terminal-item p{font-size:14px;color:var(--text-2);margin:0;line-height:1.7;}
.overview-media{position:relative;}
.overview-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-lg);box-shadow:var(--sh-lg);
}
.overview-media .media-chip{
  position:absolute;left:-16px;bottom:24px;
  background:#fff;border-radius:14px;box-shadow:var(--sh-lg);
  padding:14px 18px;display:flex;align-items:center;gap:12px;
  border:1px solid var(--border);
}
.media-chip .num{font-size:26px;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1;}
.media-chip .lbl{font-size:13px;color:var(--text-3);line-height:1.4;}

/* ============ 指标卡 ============ */
.metric-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.metric-card{
  background:var(--bg-white);border:1px solid var(--border);border-radius:var(--r-card);
  padding:32px 28px;box-shadow:var(--sh-md);position:relative;overflow:hidden;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.metric-card::before{
  content:"";position:absolute;left:0;top:0;width:100%;height:3px;
  background:linear-gradient(90deg,var(--orange),rgba(226,84,44,0));
}
.metric-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);border-color:rgba(22,55,94,.18);}
.metric-val{
  font-size:44px;font-weight:700;line-height:1;color:var(--ink);
  font-variant-numeric:tabular-nums;letter-spacing:-1.5px;margin-bottom:10px;
}
.metric-val span{font-size:17px;font-weight:600;color:var(--orange);margin-left:4px;letter-spacing:0;}
.metric-card h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.metric-card p{font-size:14px;color:var(--text-2);margin:0;line-height:1.75;}

/* ============ 图集 ============ */
.gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.gallery-card{
  background:var(--bg-white);border:1px solid var(--border);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-md);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
  display:flex;flex-direction:column;
}
.gallery-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);border-color:rgba(22,55,94,.18);}
.gallery-thumb{position:relative;overflow:hidden;}
.gallery-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform 420ms cubic-bezier(.4,0,.2,1);}
.gallery-card:hover .gallery-thumb img{transform:scale(1.04);}
.gallery-card .badge-tag{
  position:absolute;left:14px;top:14px;
  background:rgba(255,255,255,.94);color:var(--ink-deep);
  font-size:12px;font-weight:600;padding:4px 12px;border-radius:var(--r-pill);
  box-shadow:var(--sh-sm);
}
.gallery-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:8px;flex:1;}
.gallery-body h3{font-size:17px;font-weight:600;line-height:1.45;}
.gallery-body p{font-size:14px;color:var(--text-2);margin:0;line-height:1.75;}
.gallery-body .meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);display:flex;align-items:center;gap:6px;
}
.gallery-body .meta svg{width:15px;height:15px;color:var(--green);}

/* ============ 评价 ============ */
.voice-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.voice-card{
  background:var(--bg-white);border:1px solid var(--border);border-left:3px solid var(--orange);
  border-radius:var(--r-card);padding:28px 30px;box-shadow:var(--sh-md);
  transition:transform var(--t),box-shadow var(--t);
}
.voice-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);}
.voice-card blockquote{margin:0 0 18px;font-size:16px;line-height:1.85;color:var(--text);}
.voice-foot{display:flex;align-items:center;gap:12px;}
.voice-avatar{
  width:40px;height:40px;border-radius:50%;
  background:rgba(22,55,94,.08);color:var(--ink);
  display:inline-flex;align-items:center;justify-content:center;font-weight:600;font-size:14px;
}
.voice-foot .who{font-size:14px;font-weight:600;color:var(--ink);line-height:1.4;}
.voice-foot .role{font-size:13px;color:var(--text-3);line-height:1.4;}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:start;}
.faq-aside h2{font-size:32px;font-weight:650;line-height:1.3;margin-bottom:14px;}
.faq-aside p{color:var(--text-2);font-size:15px;margin-bottom:24px;}
.faq-aside .support-card{
  background:var(--bg-white);border:1px solid var(--border);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-sm);
}
.support-card h3{font-size:15px;font-weight:600;margin-bottom:6px;}
.support-card p{font-size:13px;color:var(--text-3);margin:0 0 14px;}
.faq-list{background:var(--bg-white);border:1px solid var(--border);border-radius:var(--r-card);padding:6px 24px;box-shadow:var(--sh-md);}
.faq-list .accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent;}
.faq-list .accordion-item:last-child{border-bottom:0;}
.faq-list .accordion-header{margin:0;}
.faq-list .accordion-button{
  background:transparent;box-shadow:none;border:0;border-radius:0;
  font-size:17px;font-weight:600;color:var(--text);
  padding:22px 48px 22px 16px;position:relative;line-height:1.6;
  transition:color var(--t),background var(--t);
}
.faq-list .accordion-button::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;
  background:var(--orange);border-radius:2px;opacity:0;transition:opacity var(--t);
}
.faq-list .accordion-button:not(.collapsed){color:var(--ink);background:transparent;}
.faq-list .accordion-button:not(.collapsed)::before{opacity:1;}
.faq-list .accordion-button:focus{box-shadow:none;}
.faq-list .accordion-button:focus-visible{box-shadow:0 0 0 3px var(--focus);border-radius:8px;}
.faq-list .accordion-button::after{
  content:"";position:absolute;right:6px;top:50%;
  width:28px;height:28px;border-radius:50%;
  border:1.5px solid var(--border);
  background-image:
    linear-gradient(rgba(22,55,94,.85),rgba(22,55,94,.85)),
    linear-gradient(rgba(22,55,94,.85),rgba(22,55,94,.85));
  background-size:12px 1.5px,1.5px 12px;
  background-position:center,center;
  background-repeat:no-repeat;
  transform:translateY(-50%);
  transition:transform var(--t),background-size var(--t),border-color var(--t);
}
.faq-list .accordion-button:not(.collapsed)::after{
  border-color:var(--orange);
  background-image:
    linear-gradient(var(--orange),var(--orange)),
    linear-gradient(var(--orange),var(--orange));
  background-size:12px 1.5px,0 0;
  transform:translateY(-50%) rotate(180deg);
}
.faq-list .accordion-body{padding:0 48px 22px 16px;font-size:15px;color:var(--text-2);line-height:1.85;}

/* ============ CTA ============ */
.cta-band{
  background:var(--ink);color:#F7F5F1;position:relative;overflow:hidden;
  padding:64px 0;
}
.cta-band::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;
  border-radius:50%;border:1px solid rgba(247,245,241,.10);
}
.cta-band::before{
  content:"";position:absolute;right:-40px;bottom:-180px;width:320px;height:320px;
  border-radius:50%;border:1px solid rgba(247,245,241,.08);
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:40px;padding:0 16px;}
.cta-inner h2{color:#F7F5F1;font-size:30px;font-weight:650;line-height:1.32;margin-bottom:10px;}
.cta-inner p{color:rgba(247,245,241,.72);font-size:15px;margin:0;}
.cta-actions{display:flex;gap:14px;flex-shrink:0;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:#F7F5F1;padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
.site-footer .brand{margin-bottom:16px;}
.site-footer .brand-mark{background:rgba(247,245,241,.12);box-shadow:none;}
.site-footer .brand-text strong{color:#F7F5F1;}
.site-footer .brand-text em{color:rgba(247,245,241,.55);}
.footer-brand p{font-size:14px;color:rgba(247,245,241,.66);line-height:1.8;max-width:300px;margin-bottom:20px;}
.socials{display:flex;gap:10px;}
.socials a{
  width:36px;height:36px;border-radius:50%;
  border:1px solid rgba(247,245,241,.24);color:#F7F5F1;
  display:inline-flex;align-items:center;justify-content:center;
  transition:all var(--t);
}
.socials a:hover{background:rgba(247,245,241,.12);color:#fff;border-color:rgba(247,245,241,.5);transform:translateY(-2px);}
.socials svg{width:17px;height:17px;}
.footer-col h4{font-size:15px;font-weight:600;color:#F7F5F1;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:rgba(247,245,241,.66);}
.footer-col a:hover{color:#fff;}
.footer-meta li{font-size:14px;color:rgba(247,245,241,.66);line-height:1.7;}
.footer-divider{height:1px;background:rgba(255,255,255,.12);margin:40px 0 22px;}
.footer-bottom{display:flex;flex-wrap:wrap;gap:8px 24px;align-items:center;justify-content:space-between;}
.footer-bottom p{font-size:13px;color:rgba(247,245,241,.7);margin:0;}
.footer-bottom .disclaimer{flex:1 1 320px;min-width:240px;}

/* 浮动 CTA */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:1035;
  display:inline-flex;align-items:center;gap:8px;
  background:var(--orange);color:#fff;font-size:14px;font-weight:600;
  padding:13px 22px;border-radius:var(--r-pill);
  box-shadow:0 16px 32px -16px rgba(226,84,44,.9);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity var(--t),transform var(--t),visibility var(--t),background var(--t);
}
.float-cta:hover{background:var(--orange-deep);color:#fff;transform:translateY(-2px);}
.float-cta svg{width:16px;height:16px;}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}

/* 锚点滚动留白 */
section[id]{scroll-margin-top:calc(var(--nav-h) + 64px);}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .main-nav{gap:16px;}
  .nav-link{font-size:14px;}
  .overview-grid{gap:40px;}
}
@media (max-width:991.98px){
  :root{--nav-h:64px;}
  .main-nav{display:none;}
  .menu-toggle{display:inline-flex;}
  .header-actions .btn-sm{display:none;}
  .section{padding:72px 0;}
  .overview-grid{grid-template-columns:1fr;gap:36px;}
  .overview-media .media-chip{left:12px;bottom:12px;}
  .metric-grid{grid-template-columns:1fr;gap:16px;}
  .gallery-grid{grid-template-columns:repeat(2,1fr);gap:20px;}
  .voice-grid{grid-template-columns:1fr;}
  .faq-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:24px;padding:0;}
  .page-hero::after{width:70%;opacity:.14;}
}
@media (max-width:767.98px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:32px;}
  .section-head h2,.overview-copy h2,.faq-aside h2,.cta-inner h2{font-size:24px;}
  .page-hero{padding:calc(var(--nav-h) + 24px) 0 32px;}
  .page-hero .hero-desc{font-size:15px;}
  .crumb .current{max-width:52vw;}
  .gallery-grid{grid-template-columns:1fr;}
  .metric-val{font-size:38px;}
  .voice-card{padding:22px;}
  .faq-list{padding:4px 16px;}
  .faq-list .accordion-button{padding:18px 44px 18px 12px;font-size:16px;}
  .faq-list .accordion-body{padding:0 44px 18px 12px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .float-cta{
    left:16px;right:16px;bottom:16px;justify-content:center;
    border-radius:12px;padding:14px 18px;
  }
  body{padding-bottom:0;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn-base{width:100%;}
}
@media (max-width:575.98px){
  .page-hero::after{display:none;}
  .terminal-item{padding:14px;}
  .metric-card{padding:24px 20px;}
  .overview-media img{aspect-ratio:3/2;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  .gallery-card:hover .gallery-thumb img{transform:none;}
  .metric-card:hover,.gallery-card:hover,.voice-card:hover,.terminal-item:hover{transform:none;}
}

/* roulang page: category5 */
:root{
  --ink:#16375E;
  --ink-deep:#0E2745;
  --accent:#E2542C;
  --accent-deep:#C8461F;
  --green:#1F8A70;
  --bg:#F7F5F1;
  --surface:#FFFFFF;
  --surface-alt:#EEF1F5;
  --text:#101C2C;
  --text-2:#4A5A6E;
  --text-3:#7C8A9C;
  --border:#E3E7EC;
  --line:#EDEFF2;
  --invert:#F7F5F1;
  --r-card:16px;
  --r-lg:24px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-sm:0 1px 2px rgba(16,28,44,.06);
  --sh-md:0 8px 24px -12px rgba(16,28,44,.18);
  --sh-lg:0 18px 40px -18px rgba(16,28,44,.24);
  --focus:0 0 0 3px rgba(226,84,44,.20);
  --ease:cubic-bezier(.4,0,.2,1);
  --header-h:76px;
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --bs-body-font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --bs-body-color:#101C2C;
  --bs-primary:#16375E;
  --bs-link-color:#16375E;
  --bs-link-hover-color:#E2542C;
  --bs-border-radius:10px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
body.nav-locked{ overflow:hidden; }
img{ max-width:100%; display:block; }
a{ color:var(--ink); text-decoration:none; transition:color .2s var(--ease); }
a:hover{ color:var(--accent); }
button{ font-family:inherit; }
ul,ol{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{ margin:0; color:var(--text); letter-spacing:-.2px; }
p{ margin:0; }
:focus-visible{ outline:2px solid var(--accent); outline-offset:3px; }

.container{ max-width:1200px; padding-left:24px; padding-right:24px; margin:0 auto; }

/* ============ 按钮 ============ */
.btn-x{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:14px 26px; border-radius:var(--r-btn); border:0;
  font-size:16px; font-weight:600; line-height:1; cursor:pointer;
  transition:transform .2s var(--ease), background .2s var(--ease), box-shadow .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}
.btn-x:focus-visible{ box-shadow:var(--focus); outline:none; }
.btn-primary-x{ background:var(--accent); color:#fff; box-shadow:0 6px 16px -10px rgba(226,84,44,.8); }
.btn-primary-x:hover{ background:var(--accent-deep); color:#fff; transform:translateY(-2px); box-shadow:var(--sh-lg); }
.btn-ghost-x{ background:transparent; color:var(--ink); border:1.5px solid rgba(22,55,94,.55); }
.btn-ghost-x:hover{ background:rgba(22,55,94,.06); color:var(--ink); transform:translateY(-2px); }
.btn-sm-x{ padding:10px 18px; font-size:14px; }
@supports not (backdrop-filter:blur(2px)){ }

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed; top:0; left:0; right:0; z-index:1030;
  height:var(--header-h);
  background:rgba(247,245,241,.55);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(22,55,94,.08);
  box-shadow:0 8px 24px -16px rgba(16,28,44,.35);
  transition:height .24s var(--ease), background .24s var(--ease), box-shadow .24s var(--ease), border-color .24s var(--ease);
}
.site-header.is-stuck{
  height:64px;
  background:rgba(255,255,255,.94);
  box-shadow:var(--sh-md);
  border-bottom-color:rgba(22,55,94,.14);
}
.header-inner{ height:100%; display:flex; align-items:center; gap:20px; }

.brand{ display:flex; align-items:center; gap:10px; flex:0 0 auto; }
.brand-mark{
  width:36px; height:36px; border-radius:11px;
  background:var(--ink);
  display:inline-flex; align-items:center; justify-content:center;
  box-shadow:var(--sh-sm);
  transition:background .2s var(--ease), transform .2s var(--ease);
}
.brand-mark svg{ width:22px; height:22px; }
.brand:hover .brand-mark{ background:var(--ink-deep); transform:translateY(-1px); }
.brand-text{ display:flex; flex-direction:column; line-height:1.15; }
.brand-text strong{ font-size:17px; font-weight:600; color:var(--ink); letter-spacing:-.3px; }
.brand-text em{ font-size:12px; font-style:normal; font-weight:400; color:var(--text-3); letter-spacing:.4px; }

.main-nav{ display:flex; align-items:center; gap:22px; margin-left:auto; }
.nav-link{
  position:relative; font-size:15px; font-weight:500; color:var(--text-2);
  padding:6px 0; white-space:nowrap;
}
.nav-link::after{
  content:""; position:absolute; left:0; right:0; bottom:-2px; height:2px;
  background:var(--accent); border-radius:2px;
  transform:scaleX(0); transform-origin:left; transition:transform .22s var(--ease);
}
.nav-link:hover{ color:var(--ink); }
.nav-link:hover::after{ transform:scaleX(1); }
.nav-link.is-active{ color:var(--ink); font-weight:600; }
.nav-link.is-active::after{ transform:scaleX(1); }

.header-actions{ display:flex; align-items:center; gap:12px; flex:0 0 auto; }
.icon-btn{
  width:38px; height:38px; border-radius:50%;
  border:1px solid var(--border); background:rgba(255,255,255,.7);
  color:var(--ink); display:inline-flex; align-items:center; justify-content:center;
  cursor:pointer; transition:background .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease);
}
.icon-btn svg{ width:19px; height:19px; }
.icon-btn:hover{ background:#fff; border-color:rgba(22,55,94,.25); transform:translateY(-1px); }
.icon-btn:focus-visible{ box-shadow:var(--focus); outline:none; }

.hamburger{
  display:none; width:40px; height:40px; border-radius:var(--r-btn);
  border:1px solid var(--border); background:rgba(255,255,255,.7);
  flex-direction:column; align-items:center; justify-content:center; gap:4px; cursor:pointer;
}
.hamburger span{ width:18px; height:1.75px; background:var(--ink); border-radius:2px; transition:transform .22s var(--ease), opacity .22s var(--ease); }
.hamburger.is-open span:nth-child(1){ transform:translateY(5.75px) rotate(45deg); }
.hamburger.is-open span:nth-child(2){ opacity:0; }
.hamburger.is-open span:nth-child(3){ transform:translateY(-5.75px) rotate(-45deg); }

/* 移动抽屉 */
.mobile-drawer{
  position:fixed; inset:0; z-index:1029;
  background:var(--bg);
  padding:calc(var(--header-h) + 24px) 24px 32px;
  display:flex; flex-direction:column;
  opacity:0; visibility:hidden; transform:translateY(-12px);
  transition:opacity .24s var(--ease), transform .24s var(--ease), visibility .24s;
  overflow-y:auto;
}
.mobile-drawer.is-open{ opacity:1; visibility:visible; transform:translateY(0); }
.drawer-nav{ display:flex; flex-direction:column; }
.drawer-nav a{
  font-size:18px; font-weight:500; color:var(--ink);
  padding:16px 0; border-bottom:1px solid var(--line);
}
.drawer-nav a.is-active{ color:var(--accent); font-weight:600; }
.drawer-cta{ margin-top:auto; padding-top:28px; }
.drawer-cta .btn-x{ width:100%; }
.drawer-tip{ margin-top:14px; font-size:13px; color:var(--text-3); text-align:center; }

/* ============ Hero ============ */
.page-hero{
  position:relative;
  padding:calc(var(--header-h) + 42px) 0 46px;
  background:
    linear-gradient(to right, rgba(22,55,94,.045) 1px, transparent 1px) 0 0/48px 48px,
    linear-gradient(to bottom, rgba(22,55,94,.045) 1px, transparent 1px) 0 0/48px 48px,
    var(--bg);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::after{
  content:""; position:absolute; right:-120px; top:-90px; width:340px; height:340px;
  border-radius:50%; border:1px solid rgba(22,55,94,.10); pointer-events:none;
}
.crumbs{ display:flex; flex-wrap:wrap; align-items:center; gap:8px; font-size:13px; color:var(--text-3); margin-bottom:18px; }
.crumbs li{ display:inline-flex; align-items:center; gap:8px; }
.crumbs li + li::before{ content:"/"; color:#C6CDD6; }
.crumbs a{ color:var(--text-2); }
.crumbs a:hover{ color:var(--accent); }
.crumbs .is-current{ color:var(--text-3); }

.hero-badge{
  display:inline-flex; align-items:center; gap:8px;
  padding:5px 14px; border-radius:var(--r-pill);
  background:rgba(226,84,44,.10); color:var(--accent-deep);
  font-size:12px; font-weight:600; letter-spacing:.3px;
  margin-bottom:16px;
}
.hero-badge::before{ content:""; width:6px; height:6px; border-radius:50%; background:var(--accent); }
.page-hero h1{
  font-size:clamp(26px,3.4vw,38px); font-weight:700; line-height:1.22;
  color:var(--ink); letter-spacing:-.5px; margin-bottom:12px;
}
.page-hero .hero-sub{ font-size:16px; color:var(--text-2); max-width:720px; }

/* ============ 页内锚点导航 ============ */
.page-anchors{
  position:sticky; top:76px; z-index:1015;
  background:rgba(255,255,255,.94);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh-sm);
}
.anchor-inner{ display:flex; gap:26px; overflow-x:auto; scrollbar-width:none; }
.anchor-inner::-webkit-scrollbar{ display:none; }
.anchor-link{
  position:relative; flex:0 0 auto;
  padding:16px 0; font-size:15px; font-weight:500; color:var(--text-2);
  white-space:nowrap;
}
.anchor-link::after{
  content:""; position:absolute; left:0; right:0; bottom:0; height:2px;
  background:var(--accent); border-radius:2px; transform:scaleX(0);
  transform-origin:center; transition:transform .22s var(--ease);
}
.anchor-link:hover{ color:var(--ink); }
.anchor-link.is-active{ color:var(--ink); font-weight:600; }
.anchor-link.is-active::after{ transform:scaleX(1); }

/* ============ 主体两栏 ============ */
.section{ padding:72px 0; }
.section-alt{ background:var(--surface); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }

.faq-layout{ display:grid; grid-template-columns:296px minmax(0,1fr); gap:64px; align-items:start; }

.faq-side{ position:relative; }
.side-sticky{ position:sticky; top:150px; }
.side-label{
  font-size:12px; font-weight:600; letter-spacing:1.4px; color:var(--text-3);
  text-transform:uppercase; margin-bottom:16px;
}
.side-index{ display:flex; flex-direction:column; gap:4px; }
.side-index a{
  display:flex; align-items:center; gap:12px;
  padding:12px 14px; border-radius:var(--r-btn);
  font-size:15px; color:var(--text-2);
  transition:background .2s var(--ease), color .2s var(--ease);
}
.side-index .idx{
  font-size:12px; font-weight:700; color:var(--accent);
  font-variant-numeric:tabular-nums; letter-spacing:.5px;
}
.side-index .cnt{ margin-left:auto; font-size:12px; color:var(--text-3); }
.side-index a:hover{ background:rgba(22,55,94,.05); color:var(--ink); }
.side-index a.is-active{ background:rgba(226,84,44,.08); color:var(--ink); font-weight:600; }
.side-note{
  margin-top:24px; padding:18px;
  background:var(--surface); border:1px solid var(--border); border-radius:var(--r-card);
  box-shadow:var(--sh-sm);
}
.side-note h4{ font-size:14px; font-weight:600; color:var(--ink); margin-bottom:8px; }
.side-note p{ font-size:13px; line-height:1.75; color:var(--text-3); }

.faq-main{ min-width:0; }

/* 分组 */
.faq-group + .faq-group{ margin-top:56px; }
.group-head{ margin-bottom:20px; }
.group-head h2{
  font-size:24px; font-weight:650; color:var(--ink); line-height:1.3;
  display:flex; align-items:center; gap:10px;
}
.group-head h2::before{ content:""; width:4px; height:20px; border-radius:2px; background:var(--accent); }
.group-head p{ margin-top:8px; font-size:14px; color:var(--text-3); }

/* 手风琴重写 */
.accordion{
  --bs-accordion-border-width:0;
  --bs-accordion-bg:transparent;
  --bs-accordion-btn-bg:transparent;
  --bs-accordion-active-bg:transparent;
  --bs-accordion-active-color:var(--ink);
  --bs-accordion-border-radius:0;
  --bs-accordion-inner-border-radius:0;
  --bs-accordion-btn-focus-box-shadow:none;
  --bs-accordion-btn-color:var(--text);
  --bs-accordion-color:var(--text-2);
  margin:0;
}
.accordion-item{
  position:relative;
  background:transparent;
  border:0;
  border-top:1px solid var(--line);
}
.accordion-item:last-child{ border-bottom:1px solid var(--line); }
.accordion-item::before{
  content:""; position:absolute; left:-16px; top:6px; bottom:6px; width:3px;
  border-radius:3px; background:var(--accent); opacity:0;
  transition:opacity .22s var(--ease);
}
.accordion-item:has(.accordion-button:not(.collapsed))::before{ opacity:1; }

.accordion-button{
  display:flex; align-items:center; gap:20px;
  width:100%; padding:22px 0;
  font-size:17px; font-weight:600; line-height:1.55; color:var(--text);
  background:transparent; box-shadow:none; border:0; text-align:left;
  transition:color .2s var(--ease);
}
.accordion-button:hover{ color:var(--ink); }
.accordion-button:not(.collapsed){ color:var(--ink); background:transparent; box-shadow:none; }
.accordion-button::after{ display:none; }

.acc-plus{
  position:relative; flex:0 0 28px; width:28px; height:28px; margin-left:auto;
  border-radius:50%; border:1px solid var(--border); background:#fff;
  transition:border-color .22s var(--ease), background .22s var(--ease);
}
.acc-plus::before,.acc-plus::after{
  content:""; position:absolute; left:50%; top:50%;
  background:var(--ink); border-radius:2px;
  transition:transform .22s var(--ease), opacity .22s var(--ease), background .22s var(--ease);
}
.acc-plus::before{ width:11px; height:1.75px; transform:translate(-50%,-50%); }
.acc-plus::after{ width:1.75px; height:11px; transform:translate(-50%,-50%); }
.accordion-button:not(.collapsed) .acc-plus{ border-color:rgba(226,84,44,.5); background:rgba(226,84,44,.08); }
.accordion-button:not(.collapsed) .acc-plus::before{ background:var(--accent); }
.accordion-button:not(.collapsed) .acc-plus::after{ background:var(--accent); transform:translate(-50%,-50%) rotate(90deg); opacity:0; }

.accordion-body{
  padding:0 56px 22px 0;
  font-size:15px; line-height:1.85; color:var(--text-2);
}
.accordion-body strong{ color:var(--ink); font-weight:600; }
.acc-steps{ margin-top:12px; display:flex; flex-direction:column; gap:8px; }
.acc-steps li{
  position:relative; padding-left:20px; font-size:14px; color:var(--text-2);
}
.acc-steps li::before{
  content:""; position:absolute; left:4px; top:11px; width:6px; height:6px;
  border-radius:50%; border:1.5px solid var(--accent); background:transparent;
}

/* 仍未解决 */
.still-stuck{
  margin-top:44px; padding:28px 30px;
  background:var(--surface); border:1px solid var(--border); border-radius:var(--r-card);
  box-shadow:var(--sh-md);
  display:flex; align-items:center; gap:24px; flex-wrap:wrap;
}
.still-stuck .txt{ flex:1 1 320px; min-width:0; }
.still-stuck h3{ font-size:18px; font-weight:600; color:var(--ink); margin-bottom:6px; }
.still-stuck p{ font-size:14px; color:var(--text-2); }

/* ============ 自查顺序 ============ */
.selfcheck-grid{ display:grid; grid-template-columns:minmax(0,1fr) 400px; gap:56px; align-items:center; }
.selfcheck-text h2{ font-size:30px; font-weight:650; color:var(--ink); line-height:1.3; margin-bottom:14px; }
.selfcheck-text > p{ font-size:16px; color:var(--text-2); max-width:560px; margin-bottom:30px; }
.check-list{ display:flex; flex-direction:column; }
.check-item{ display:grid; grid-template-columns:44px minmax(0,1fr); gap:18px; padding:20px 0; border-top:1px solid var(--line); }
.check-item:last-child{ border-bottom:1px solid var(--line); }
.check-num{
  width:34px; height:34px; border-radius:50%;
  background:rgba(22,55,94,.07); color:var(--ink);
  display:inline-flex; align-items:center; justify-content:center;
  font-size:13px; font-weight:700; font-variant-numeric:tabular-nums;
}
.check-item h3{ font-size:16px; font-weight:600; color:var(--ink); margin-bottom:5px; }
.check-item p{ font-size:14px; line-height:1.75; color:var(--text-2); }

.selfcheck-figure{
  position:relative; border-radius:var(--r-lg); overflow:hidden;
  box-shadow:var(--sh-lg); border:1px solid var(--border);
}
.selfcheck-figure img{ width:100%; height:420px; object-fit:cover; }
.figure-cap{
  position:absolute; left:0; right:0; bottom:0;
  padding:44px 22px 20px;
  background:linear-gradient(to top, rgba(14,39,69,.35), rgba(14,39,69,0));
  color:#fff; font-size:14px; font-weight:500;
}

/* ============ 数据条 ============ */
.facts-grid{ display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:24px; }
.fact-card{
  background:var(--surface); border:1px solid var(--border); border-radius:var(--r-card);
  padding:30px 26px; box-shadow:var(--sh-md);
  transition:transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
}
.fact-card:hover{ transform:translateY(-4px); box-shadow:var(--sh-lg); border-color:rgba(22,55,94,.18); }
.fact-num{
  font-size:40px; font-weight:700; color:var(--ink); line-height:1.1;
  font-variant-numeric:tabular-nums; letter-spacing:-1px;
}
.fact-num span{ font-size:16px; font-weight:600; color:var(--accent); margin-left:4px; }
.fact-card h3{ font-size:16px; font-weight:600; color:var(--ink); margin:12px 0 6px; }
.fact-card p{ font-size:14px; color:var(--text-3); line-height:1.7; }

/* ============ 结尾转化带 ============ */
.cta-band{
  background:var(--ink); color:var(--invert);
  padding:64px 0;
}
.cta-band .cta-inner{
  display:flex; align-items:center; justify-content:space-between; gap:40px; flex-wrap:wrap;
  padding-left:8px; padding-right:8px;
}
.cta-band h2{ font-size:28px; font-weight:650; color:var(--invert); line-height:1.3; margin-bottom:10px; }
.cta-band p{ font-size:15px; color:rgba(247,245,241,.76); max-width:620px; }
.cta-band .btn-primary-x:hover{ background:#F0653C; }

/* ============ 页脚 ============ */
.site-footer{ background:var(--ink); color:rgba(247,245,241,.82); padding:64px 0 28px; }
.footer-grid{ display:grid; grid-template-columns:1.6fr 1fr 1fr 1.15fr; gap:48px; }
.footer-brand .brand{ margin-bottom:16px; }
.footer-brand .brand-mark{ background:rgba(247,245,241,.12); box-shadow:none; }
.footer-brand .brand-text strong{ color:var(--invert); }
.footer-brand .brand-text em{ color:rgba(247,245,241,.6); }
.footer-brand p{ font-size:14px; line-height:1.8; color:rgba(247,245,241,.68); max-width:320px; }
.socials{ display:flex; gap:10px; margin-top:20px; }
.socials a{
  width:36px; height:36px; border-radius:50%;
  border:1px solid rgba(247,245,241,.24);
  display:inline-flex; align-items:center; justify-content:center;
  color:rgba(247,245,241,.82);
  transition:background .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease), color .2s var(--ease);
}
.socials a svg{ width:17px; height:17px; }
.socials a:hover{ background:rgba(247,245,241,.12); border-color:rgba(247,245,241,.5); color:#fff; transform:translateY(-2px); }

.footer-col h4{ font-size:14px; font-weight:600; color:var(--invert); margin-bottom:16px; letter-spacing:.4px; }
.footer-col ul{ display:flex; flex-direction:column; gap:10px; }
.footer-col a{ font-size:14px; color:rgba(247,245,241,.68); }
.footer-col a:hover{ color:#fff; }
.contact-list li{ display:flex; justify-content:space-between; gap:14px; font-size:13px; padding:8px 0; border-bottom:1px solid rgba(247,245,241,.10); }
.contact-list li:last-child{ border-bottom:0; }
.c-label{ color:rgba(247,245,241,.55); flex:0 0 auto; }
.c-value{ color:rgba(247,245,241,.85); text-align:right; }

.footer-divider{ height:1px; background:rgba(247,245,241,.12); margin:40px 0 22px; }
.footer-bottom{ display:flex; flex-wrap:wrap; gap:8px 24px; align-items:center; font-size:13px; color:rgba(247,245,241,.7); }
.footer-bottom .footer-meta{ color:rgba(247,245,241,.55); }

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .main-nav{ gap:15px; }
  .nav-link{ font-size:14px; }
  .faq-layout{ grid-template-columns:260px minmax(0,1fr); gap:44px; }
  .selfcheck-grid{ grid-template-columns:minmax(0,1fr) 340px; gap:40px; }
  .footer-grid{ grid-template-columns:1.5fr 1fr 1fr; gap:40px; }
  .footer-col-contact{ grid-column:1 / -1; }
  .contact-list{ display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:0 32px; }
}
@media (max-width:991px){
  .main-nav{ display:none; }
  .hamburger{ display:flex; }
  .header-actions .btn-x{ display:none; }
  .faq-layout{ grid-template-columns:minmax(0,1fr); gap:32px; }
  .faq-side{ order:-1; }
  .side-sticky{ position:static; }
  .side-index{ flex-direction:row; flex-wrap:wrap; gap:8px; }
  .side-index a{
    border:1px solid var(--border); background:#fff; padding:8px 14px;
    font-size:13px; border-radius:var(--r-pill);
  }
  .side-index .cnt{ display:none; }
  .side-note{ display:none; }
  .selfcheck-grid{ grid-template-columns:minmax(0,1fr); gap:34px; }
  .selfcheck-figure img{ height:320px; }
  .section{ padding:64px 0; }
  .facts-grid{ gap:16px; }
  .cta-band h2{ font-size:24px; }
}
@media (max-width:767px){
  .container{ padding-left:20px; padding-right:20px; }
  .page-hero{ padding:calc(var(--header-h) + 28px) 0 34px; }
  .page-hero .hero-sub{ font-size:15px; }
  .anchor-inner{ gap:20px; }
  .anchor-link{ font-size:14px; padding:14px 0; }
  .section{ padding:56px 0; }
  .group-head h2{ font-size:20px; }
  .accordion-button{ font-size:16px; padding:18px 0; gap:14px; }
  .accordion-body{ padding:0 0 20px 0; }
  .accordion-item::before{ left:-10px; }
  .still-stuck{ padding:22px; gap:16px; }
  .still-stuck .btn-x{ width:100%; }
  .facts-grid{ grid-template-columns:minmax(0,1fr); }
  .fact-num{ font-size:34px; }
  .cta-band{ padding:52px 0; }
  .cta-band .cta-inner{ gap:24px; }
  .cta-band .btn-x{ width:100%; }
  .footer-grid{ grid-template-columns:minmax(0,1fr); gap:32px; }
  .contact-list{ grid-template-columns:minmax(0,1fr); }
  .footer-bottom{ flex-direction:column; align-items:flex-start; }
}
@media (max-width:575px){
  .brand-text strong{ font-size:15px; }
  .brand-text em{ font-size:11px; }
  .brand-mark{ width:32px; height:32px; border-radius:10px; }
  .brand-mark svg{ width:19px; height:19px; }
  .page-hero h1{ font-size:24px; }
  .selfcheck-figure img{ height:240px; }
  .figure-cap{ padding:32px 16px 16px; font-size:13px; }
  .header-inner{ gap:12px; }
  .icon-btn{ display:none; }
}

@media (prefers-reduced-motion:reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
}

#group-entry,#group-account,#group-device,#selfcheck,#support,#facts{ scroll-margin-top:150px; }

/* roulang page: category6 */
:root{
  --ink:#16375E;
  --ink-deep:#0E2745;
  --orange:#E2542C;
  --orange-deep:#C8461F;
  --green:#1F8A70;
  --bg:#F7F5F1;
  --white:#FFFFFF;
  --grey-bg:#EEF1F5;
  --text:#101C2C;
  --text-2:#4A5A6E;
  --text-3:#7C8A9C;
  --border:#E3E7EC;
  --line:#EDEFF2;
  --focus:rgba(226,84,44,.20);
  --r-card:16px;
  --r-block:24px;
  --r-btn:10px;
  --sh-sm:0 1px 2px rgba(16,28,44,.06);
  --sh-md:0 8px 24px -12px rgba(16,28,44,.18);
  --sh-lg:0 18px 40px -18px rgba(16,28,44,.24);
  --ease:cubic-bezier(.4,0,.2,1);
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--orange);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:none;box-shadow:0 0 0 3px var(--focus);border-radius:6px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.num{font-variant-numeric:tabular-nums;}

/* ---------- header ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1000;
  background:rgba(247,245,241,.62);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(22,55,94,.08);
  box-shadow:0 8px 24px -16px rgba(16,28,44,.35);
  transition:background .24s var(--ease),height .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-stuck{
  background:rgba(255,255,255,.96);
  box-shadow:var(--sh-md);
  border-bottom-color:rgba(22,55,94,.14);
}
.header-inner{
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
  height:76px;
  display:flex;
  align-items:center;
  gap:20px;
  transition:height .24s var(--ease);
}
.site-header.is-stuck .header-inner{height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;
  border-radius:11px;
  background:var(--ink);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-sm);
  transition:transform .2s var(--ease),background .2s var(--ease);
}
.brand:hover .brand-mark{transform:translateY(-2px);background:var(--ink-deep);}
.brand-mark svg{width:21px;height:21px;display:block;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:16px;font-weight:600;color:var(--ink);letter-spacing:-.2px;}
.brand-text em{font-size:12px;font-style:normal;font-weight:400;color:var(--text-3);margin-top:2px;}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto;}
.main-nav a{
  position:relative;
  padding:8px 10px;
  font-size:14.5px;
  font-weight:500;
  color:var(--text-2);
  border-radius:8px;
  white-space:nowrap;
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:10px;right:10px;bottom:2px;
  height:2px;border-radius:2px;
  background:var(--orange);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .22s var(--ease);
}
.main-nav a:hover{color:var(--ink);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.is-active{color:var(--ink);font-weight:600;}
.main-nav a.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.icon-btn{
  width:38px;height:38px;
  border:1px solid var(--border);
  border-radius:10px;
  background:rgba(255,255,255,.7);
  color:var(--ink);
  display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;
  transition:border-color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease);
}
.icon-btn svg{width:18px;height:18px;}
.icon-btn:hover{border-color:rgba(22,55,94,.24);background:#fff;transform:translateY(-2px);}
.menu-toggle{display:none;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:none;cursor:pointer;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  padding:13px 24px;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.btn svg{width:17px;height:17px;}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 6px 16px -10px rgba(226,84,44,.8);}
.btn-primary:hover{background:var(--orange-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-lg);}
.btn-outline{background:transparent;color:var(--ink);border:1.5px solid rgba(22,55,94,.35);}
.btn-outline:hover{background:rgba(22,55,94,.06);color:var(--ink-deep);border-color:rgba(22,55,94,.55);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-block{width:100%;height:52px;font-size:16px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--ink);}
.link-arrow svg{width:16px;height:16px;transition:transform .2s var(--ease);}
.link-arrow:hover{color:var(--orange);}
.link-arrow:hover svg{transform:translateX(4px);}

/* mobile drawer */
.drawer{display:none;}
.drawer-panel{
  position:fixed;inset:0;
  z-index:1100;
  background:#FBF9F5;
  padding:24px;
  transform:translateY(-100%);
  transition:transform .3s var(--ease);
  overflow-y:auto;
}
.drawer.is-open .drawer-panel{transform:translateY(0);}
.drawer.is-open{display:block;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-links{display:flex;flex-direction:column;gap:4px;}
.drawer-links a{
  font-size:18px;font-weight:500;color:var(--ink);
  padding:14px 4px;border-bottom:1px solid var(--line);
}
.drawer-links a.is-active{color:var(--orange);font-weight:600;}
.drawer-cta{margin-top:24px;}

/* ---------- breadcrumb ---------- */
.crumbs{padding:0;margin-bottom:18px;}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);}
.crumbs li{display:flex;align-items:center;gap:8px;}
.crumbs li+li::before{content:"/";color:#C4CCD6;}
.crumbs a{color:var(--text-2);}
.crumbs a:hover{color:var(--orange);}
.crumbs .current{color:var(--text-3);}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;
  padding:148px 0 52px;
  background:
    repeating-linear-gradient(0deg,rgba(22,55,94,.045) 0 1px,transparent 1px 40px),
    repeating-linear-gradient(90deg,rgba(22,55,94,.045) 0 1px,transparent 1px 40px),
    var(--bg);
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  right:-140px;top:-120px;
  width:420px;height:420px;
  border-radius:50%;
  border:1px solid rgba(22,55,94,.10);
  pointer-events:none;
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-40px;top:-40px;
  width:240px;height:240px;
  border-radius:50%;
  border:1px solid rgba(226,84,44,.16);
  pointer-events:none;
}
.page-hero h1{
  font-size:clamp(26px,3.6vw,40px);
  font-weight:700;
  line-height:1.2;
  letter-spacing:-.5px;
  color:var(--ink);
  max-width:820px;
}
.page-hero p.lead-text{
  margin-top:14px;
  font-size:16px;
  color:var(--text-2);
  max-width:680px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;
  border-radius:999px;
  font-size:12.5px;font-weight:600;
  background:rgba(226,84,44,.10);
  color:#9F3517;
}
.tag-green{background:rgba(31,138,112,.12);color:#146B56;}
.tag-ink{background:rgba(22,55,94,.08);color:var(--ink);}

/* ---------- anchor subnav ---------- */
.anchor-bar{
  position:sticky;
  top:64px;
  z-index:900;
  background:rgba(255,255,255,.94);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--border);
}
.anchor-inner{
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
  display:flex;
  gap:4px;
  overflow-x:auto;
  scrollbar-width:none;
}
.anchor-inner::-webkit-scrollbar{display:none;}
.anchor-inner a{
  position:relative;
  padding:15px 14px;
  font-size:14.5px;
  font-weight:500;
  color:var(--text-2);
  white-space:nowrap;
}
.anchor-inner a::after{
  content:"";
  position:absolute;left:14px;right:14px;bottom:0;
  height:2px;background:var(--orange);
  transform:scaleX(0);
  transition:transform .22s var(--ease);
}
.anchor-inner a:hover{color:var(--ink);}
.anchor-inner a:hover::after,.anchor-inner a.is-active::after{transform:scaleX(1);}
.anchor-inner a.is-active{color:var(--ink);font-weight:600;}

/* ---------- sections ---------- */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-alt{background:var(--white);}
.section-grey{background:var(--grey-bg);}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head h2{
  font-size:clamp(22px,2.6vw,32px);
  font-weight:650;
  line-height:1.3;
  color:var(--ink);
  letter-spacing:-.3px;
}
.section-head p{margin-top:12px;color:var(--text-2);font-size:15.5px;}
.eyebrow{
  display:inline-block;
  font-size:12.5px;font-weight:600;letter-spacing:1.2px;
  color:var(--orange);
  margin-bottom:12px;
}

/* ---------- channel cards ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.channel-card{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-card);
  padding:26px;
  box-shadow:var(--sh-sm);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.channel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);border-color:rgba(22,55,94,.18);}
.channel-icon{
  width:44px;height:44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(22,55,94,.07);
  color:var(--ink);
  margin-bottom:16px;
}
.channel-icon svg{width:22px;height:22px;}
.channel-card h3{font-size:18px;font-weight:600;color:var(--ink);margin-bottom:8px;}
.channel-card p{font-size:14.5px;color:var(--text-2);}
.channel-card .meta{margin-top:16px;font-size:13px;color:var(--text-3);display:flex;align-items:center;gap:8px;}
.dot{width:6px;height:6px;border-radius:50%;background:var(--green);display:inline-block;}

/* ---------- contact layout ---------- */
.contact-layout{
  display:grid;
  grid-template-columns:1.08fr .92fr;
  gap:32px;
  align-items:start;
}
.form-card{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-block);
  padding:32px;
  box-shadow:var(--sh-md);
}
.form-card h2{font-size:24px;font-weight:650;color:var(--ink);letter-spacing:-.2px;}
.form-card .form-note{margin-top:8px;font-size:14px;color:var(--text-3);}
form.support-form{margin-top:24px;}
.field{margin-bottom:18px;}
.field label{
  display:block;
  font-size:14px;font-weight:500;color:var(--text);
  margin-bottom:7px;
}
.req{color:var(--orange);margin-left:2px;}
.field input,.field select,.field textarea{
  width:100%;
  border:1px solid #DDE2E8;
  border-radius:var(--r-btn);
  background:#fff;
  font-size:15px;
  color:var(--text);
  padding:0 14px;
  height:48px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{height:auto;min-height:124px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:#9AA6B4;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--ink);
  box-shadow:0 0 0 3px var(--focus);
}
.field .hint{font-size:12.5px;color:var(--text-3);margin-top:6px;}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.form-alert{
  border-radius:12px;
  padding:14px 16px;
  font-size:14px;
  margin-top:20px;
  border:1px solid transparent;
}
.form-alert.ok{background:rgba(31,138,112,.10);border-color:rgba(31,138,112,.28);color:#146B56;}
.form-alert.error{background:rgba(226,84,44,.09);border-color:rgba(226,84,44,.28);color:#B03C1C;}

.info-card{
  background:var(--ink);
  color:#F7F5F1;
  border-radius:var(--r-block);
  padding:32px;
  box-shadow:var(--sh-md);
}
.info-card h2{font-size:22px;font-weight:650;letter-spacing:-.2px;color:#fff;}
.info-card .info-sub{margin-top:8px;font-size:13.5px;color:rgba(247,245,241,.72);}
.info-list{margin-top:24px;}
.info-row{
  display:flex;
  gap:16px;
  justify-content:space-between;
  padding:15px 0;
  border-bottom:1px solid rgba(255,255,255,.12);
  font-size:14.5px;
}
.info-row:first-child{padding-top:0;}
.info-row .k{color:rgba(247,245,241,.68);flex-shrink:0;}
.info-row .v{text-align:right;color:#fff;font-weight:500;word-break:break-all;}
.info-row .v small{display:block;font-weight:400;font-size:12.5px;color:rgba(247,245,241,.6);margin-top:2px;}
.info-foot{
  margin-top:22px;
  display:flex;align-items:center;gap:10px;
  font-size:13px;color:rgba(247,245,241,.7);
}
.info-foot svg{width:16px;height:16px;flex-shrink:0;color:#6FD1B4;}

/* ---------- prepare ---------- */
.prepare-grid{
  display:grid;
  grid-template-columns:.95fr 1.05fr;
  gap:48px;
  align-items:center;
}
.figure-frame{
  border-radius:var(--r-block);
  overflow:hidden;
  box-shadow:var(--sh-md);
  border:1px solid var(--border);
  background:#fff;
}
.figure-frame img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11;}
.prepare-list{margin-top:24px;display:grid;gap:14px;}
.prepare-item{
  display:flex;gap:14px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:14px;
  padding:16px 18px;
  box-shadow:var(--sh-sm);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.prepare-item:hover{transform:translateY(-3px);box-shadow:var(--sh-md);}
.prepare-num{
  width:28px;height:28px;flex-shrink:0;
  border-radius:50%;
  background:rgba(22,55,94,.09);
  color:var(--ink);
  font-size:13px;font-weight:600;
  display:flex;align-items:center;justify-content:center;
}
.prepare-item h3{font-size:15.5px;font-weight:600;color:var(--ink);margin-bottom:3px;}
.prepare-item p{font-size:14px;color:var(--text-2);line-height:1.7;}

/* ---------- hours table ---------- */
.table-wrap{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-sm);
}
table.hours{width:100%;border-collapse:collapse;font-size:14.5px;}
table.hours thead th{
  background:var(--grey-bg);
  color:var(--ink);
  font-weight:600;
  font-size:13.5px;
  text-align:left;
  padding:14px 20px;
  border-bottom:1px solid var(--border);
  white-space:nowrap;
}
table.hours td{
  padding:15px 20px;
  border-bottom:1px solid var(--line);
  color:var(--text-2);
  vertical-align:top;
}
table.hours tbody tr:nth-child(even){background:#FBFAF8;}
table.hours tbody tr:last-child td{border-bottom:none;}
table.hours td:first-child{color:var(--ink);font-weight:600;font-variant-numeric:tabular-nums;}
.badge-soft{
  display:inline-block;
  padding:3px 10px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  background:rgba(22,55,94,.08);
  color:var(--ink);
}
.badge-soft.warn{background:rgba(226,84,44,.12);color:#9F3517;}
.badge-soft.ok{background:rgba(31,138,112,.12);color:#146B56;}

/* ---------- qa cards ---------- */
.qa-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.qa-card{
  background:#fff;
  border:1px solid var(--border);
  border-left:3px solid rgba(226,84,44,.55);
  border-radius:14px;
  padding:24px;
  box-shadow:var(--sh-sm);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-left-color .2s var(--ease);
}
.qa-card:hover{transform:translateY(-3px);box-shadow:var(--sh-md);border-left-color:var(--orange);}
.qa-card h3{font-size:16.5px;font-weight:600;color:var(--ink);margin-bottom:8px;display:flex;gap:9px;}
.qa-card h3 span{
  color:var(--orange);font-weight:700;flex-shrink:0;
}
.qa-card p{font-size:14.5px;color:var(--text-2);}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--ink);
  color:#F7F5F1;
  padding:72px 0;
}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:40px;
  padding:0 8px;
}
.cta-inner h2{
  font-size:clamp(22px,2.6vw,30px);
  font-weight:650;
  color:#fff;
  letter-spacing:-.3px;
  line-height:1.35;
  max-width:620px;
}
.cta-inner p{margin-top:12px;color:rgba(247,245,241,.74);font-size:15px;max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-shrink:0;flex-wrap:wrap;}
.btn-light{background:#fff;color:var(--ink);}
.btn-light:hover{background:#F1EDE6;color:var(--ink-deep);transform:translateY(-2px);box-shadow:var(--sh-lg);}
.btn-ghost{background:transparent;color:#F7F5F1;border:1.5px solid rgba(247,245,241,.42);}
.btn-ghost:hover{background:rgba(247,245,241,.12);color:#fff;border-color:rgba(247,245,241,.7);}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#F7F5F1;padding:72px 0 0;}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:48px;
}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand .brand-text strong{color:#fff;}
.footer-brand .brand-text em{color:rgba(247,245,241,.6);}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);}
.footer-brand p{font-size:14px;color:rgba(247,245,241,.7);max-width:300px;line-height:1.8;}
.socials{display:flex;gap:10px;margin-top:20px;}
.socials a{
  width:36px;height:36px;border-radius:50%;
  border:1px solid rgba(255,255,255,.24);
  display:inline-flex;align-items:center;justify-content:center;
  color:#F7F5F1;
  transition:background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.socials a svg{width:17px;height:17px;}
.socials a:hover{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.5);transform:translateY(-2px);}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:rgba(247,245,241,.72);}
.footer-col a:hover{color:#fff;}
.footer-contact li{font-size:14px;color:rgba(247,245,241,.72);display:flex;gap:9px;line-height:1.7;}
.footer-contact svg{width:16px;height:16px;flex-shrink:0;margin-top:4px;color:rgba(247,245,241,.6);}
.footer-bottom{
  margin-top:56px;
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 28px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(247,245,241,.62);
}
.footer-bottom a{color:rgba(247,245,241,.62);}
.footer-bottom a:hover{color:#fff;}

section[id]{scroll-margin-top:150px;}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .main-nav a{padding:8px 7px;font-size:14px;}
  .header-inner{gap:14px;}
}
@media (max-width:991px){
  .main-nav,.header-actions .btn-sm,.header-actions .icon-btn{display:none;}
  .menu-toggle{
    display:inline-flex;width:40px;height:40px;
    align-items:center;justify-content:center;
    border:1px solid var(--border);border-radius:10px;background:rgba(255,255,255,.7);
    color:var(--ink);cursor:pointer;
  }
  .menu-toggle svg{width:20px;height:20px;}
  .contact-layout{grid-template-columns:1fr;}
  .channel-grid{grid-template-columns:1fr 1fr;}
  .prepare-grid{grid-template-columns:1fr;gap:32px;}
  .qa-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:26px;}
  .section{padding:68px 0;}
  .page-hero{padding:132px 0 44px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .header-inner{padding:0 20px;height:66px;}
  .site-header.is-stuck .header-inner{height:60px;}
  .brand-mark{width:32px;height:32px;border-radius:10px;}
  .brand-text strong{font-size:15px;}
  .anchor-bar{top:60px;}
  .anchor-inner{padding:0 20px;}
  .channel-grid{grid-template-columns:1fr;}
  .field-row{grid-template-columns:1fr;gap:0;}
  .form-card,.info-card{padding:24px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:32px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .cta-band{padding:56px 0;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;}
  .info-row{flex-direction:column;gap:4px;align-items:flex-start;}
  .info-row .v{text-align:left;}
  .page-hero{padding:118px 0 40px;}
  section[id]{scroll-margin-top:130px;}
}
@media (max-width:575px){
  .page-hero h1{font-size:25px;}
  .form-card h2{font-size:21px;}
  .table-wrap{overflow-x:auto;}
  table.hours{min-width:520px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}
@media (hover:none){
  .channel-card:hover,.prepare-item:hover,.qa-card:hover,.btn:hover{transform:none;}
}