/* roulang page: index */
:root{
  --ink:#1E3D3A;
  --ink-deep:#10201E;
  --ink-soft:#2F6A62;
  --accent:#E4693C;
  --accent-deep:#C9552C;
  --mist:#8FB3AB;
  --paper:#F6F4EF;
  --paper-2:#ECEAE3;
  --card:#FFFFFF;
  --line:#DAD6CC;
  --line-2:#E4E0D6;
  --dash:#DDD8CD;
  --text:#14201E;
  --muted:#5A6663;
  --reverse:#F3F1EC;
  --hover-bg:#F1EEE7;
  --radius:18px;
  --radius-img:14px;
  --radius-input:12px;
  --shadow-1:0 1px 2px rgba(20,32,30,.06);
  --shadow-2:0 14px 34px -14px rgba(20,32,30,.18);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  font-weight:400;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:var(--ink-soft);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--ink);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;color:var(--ink);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:clamp(40px,5vw,72px) 0;}
section[id]{scroll-margin-top:110px;}

/* ---------- 排版基础 ---------- */
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;font-weight:700;letter-spacing:.18em;color:var(--ink-soft);text-transform:uppercase;}
.eyebrow::before{content:"";width:8px;height:2px;background:var(--accent);display:inline-block;}
.h2{font-size:clamp(1.5rem,2.6vw,2.2rem);font-weight:700;line-height:1.22;}
.h3{font-size:1.25rem;font-weight:700;line-height:1.4;}
.lead{font-size:16.5px;line-height:1.85;color:var(--muted);}
.small{font-size:13px;line-height:1.7;color:var(--muted);}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:14px 28px;font-size:15px;font-weight:600;line-height:1;border:1.5px solid transparent;cursor:pointer;transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 18px -10px rgba(228,105,60,.9);}
.btn-primary:hover{background:var(--accent-deep);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px -12px rgba(201,85,44,.85);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:rgba(30,61,58,.08);color:var(--ink);}
.btn-ghost:active{transform:translateY(1px);}
.btn-text{background:none;border:0;padding:6px 0;color:var(--ink);font-weight:600;display:inline-flex;align-items:center;gap:8px;cursor:pointer;border-bottom:2px solid transparent;}
.btn-text:hover{color:var(--ink-soft);border-bottom-color:var(--accent);}
.btn-text .arw{transition:transform .22s var(--ease);}
.btn-text:hover .arw{transform:translateX(4px);}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;box-shadow:none;}
.btn-sm{padding:10px 20px;font-size:14px;}

/* ---------- 徽章 ---------- */
.badge{display:inline-block;background:#E3EDEA;color:var(--ink);font-size:12px;font-weight:600;border-radius:6px;padding:4px 10px;line-height:1.5;white-space:nowrap;}
.badge-accent{background:rgba(228,105,60,.14);color:var(--accent-deep);}

/* ---------- 浮动 Dock 导航 ---------- */
.dock-wrap{position:fixed;top:20px;left:0;right:0;z-index:80;display:flex;justify-content:center;padding:0 24px;transition:top .24s var(--ease);pointer-events:none;}
.dock-wrap.scrolled{top:12px;}
.dock{pointer-events:auto;width:100%;max-width:760px;height:60px;display:flex;align-items:center;gap:10px;padding:0 10px 0 18px;border-radius:999px;background:rgba(246,244,239,.9);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--line);box-shadow:var(--shadow-1);transition:height .24s var(--ease),box-shadow .24s var(--ease);}
.dock.scrolled{height:52px;box-shadow:var(--shadow-2);}
.logo{display:inline-flex;align-items:center;gap:2px;font-size:15px;font-weight:800;color:var(--ink);letter-spacing:-.01em;white-space:nowrap;}
.logo .dot{color:var(--accent);margin:0 4px;}
.dock-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.dock-nav a{position:relative;font-size:14px;font-weight:500;color:var(--ink);padding:8px 10px;border-radius:999px;transition:color .2s var(--ease),background .2s var(--ease);}
.dock-nav a::after{content:"";position:absolute;left:10px;right:10px;bottom:2px;height:2px;background:var(--accent);border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease);}
.dock-nav a:hover{color:var(--ink-soft);}
.dock-nav a:hover::after,.dock-nav a.active::after{transform:scaleX(1);}
.dock-nav a.active{color:var(--ink);}
.dock-actions{display:flex;align-items:center;gap:8px;margin-left:6px;}
.icon-btn{width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;border-radius:999px;border:1px solid var(--line);background:transparent;color:var(--ink);cursor:pointer;transition:background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);}
.icon-btn:hover{background:var(--paper-2);border-color:var(--mist);color:var(--ink-soft);}
.burger{display:none;width:36px;height:36px;align-items:center;justify-content:center;border-radius:999px;border:1px solid var(--line);background:transparent;color:var(--ink);cursor:pointer;}
.burger:hover{background:var(--paper-2);}

/* 移动端全屏面板 */
.mobile-panel{position:fixed;inset:0;z-index:90;background:var(--paper);padding:24px;display:flex;flex-direction:column;opacity:0;visibility:hidden;transform:translateY(12px);transition:opacity .26s var(--ease),transform .26s var(--ease),visibility .26s;}
.mobile-panel.open{opacity:1;visibility:visible;transform:none;}
.mobile-panel-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line-2);}
.mobile-links{margin-top:12px;display:flex;flex-direction:column;}
.mobile-links a{font-size:20px;line-height:56px;color:var(--ink);border-bottom:1px dashed var(--dash);font-weight:600;}
.mobile-links a:hover{color:var(--accent-deep);}
.mobile-links .sub{font-size:14px;font-weight:500;color:var(--muted);line-height:48px;}
.mobile-panel .btn{margin-top:auto;}

/* ---------- Hero ---------- */
.hero{padding-top:clamp(120px,13vw,176px);padding-bottom:clamp(32px,4vw,56px);}
.hero-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:center;}
.hero-copy{grid-column:span 7;}
.hero-visual{grid-column:span 5;}
.hero-title{font-size:clamp(2.1rem,4.6vw,3.9rem);font-weight:800;line-height:1.15;letter-spacing:-.01em;margin:18px 0 0;}
.hero-title .t2{display:block;font-size:clamp(1.05rem,2vw,1.5rem);font-weight:700;color:var(--ink-soft);letter-spacing:0;line-height:1.4;margin-top:16px;}
.hero-rule{width:clamp(120px,20vw,220px);height:1px;background:var(--line);margin:24px 0 22px;}
.hero-sub{font-size:17px;line-height:1.8;color:var(--muted);max-width:34em;}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:40px;border-top:1px solid var(--line-2);padding-top:26px;}
.metric b{display:block;font-size:28px;font-weight:800;line-height:1.1;color:var(--ink);font-variant-numeric:tabular-nums;}
.metric span{display:block;font-size:12px;line-height:1.6;color:var(--muted);margin-top:6px;}
.hero-figure{position:relative;overflow:hidden;border-radius:var(--radius-img);aspect-ratio:16/9;background:var(--paper-2);box-shadow:var(--shadow-1);}
.hero-figure img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.hero-figure:hover img{transform:scale(1.03);}
.hero-figure::after{content:"";position:absolute;inset:0;background:var(--ink-deep);transform-origin:bottom;animation:veilUp .9s var(--ease) .15s forwards;}
@keyframes veilUp{to{transform:scaleY(0);}}
.hero-note{margin-top:14px;display:flex;align-items:center;gap:10px;}

/* ---------- 卖点 ---------- */
.value-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.value-aside{grid-column:span 4;position:sticky;top:110px;align-self:start;}
.value-aside .h2{margin:14px 0 12px;}
.value-list{grid-column:span 8;}
.value-item{display:grid;grid-template-columns:76px 1fr;gap:20px;padding:26px 0;border-bottom:1px dashed var(--dash);}
.value-item:first-child{padding-top:0;}
.value-item:last-child{border-bottom:0;}
.value-num{font-size:40px;font-weight:800;line-height:1;color:transparent;-webkit-text-stroke:1.5px var(--mist);font-variant-numeric:tabular-nums;}
.value-item h3{margin-bottom:6px;}
.value-item p{font-size:15.5px;color:var(--muted);line-height:1.8;}

/* ---------- 演示 ---------- */
.demo-band{background:var(--paper-2);position:relative;overflow:hidden;}
.demo-dots{position:absolute;inset:0;background-image:radial-gradient(rgba(20,32,30,.55) 1px,transparent 1px);background-size:24px 24px;opacity:.06;pointer-events:none;}
.demo-grid{position:relative;display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:center;}
.demo-copy{grid-column:span 6;}
.demo-copy .h2{margin:14px 0 16px;}
.demo-list{margin-top:22px;display:flex;flex-direction:column;gap:14px;}
.demo-list li{display:flex;gap:12px;font-size:15.5px;color:var(--text);line-height:1.7;}
.demo-list li svg{flex:0 0 auto;margin-top:4px;color:var(--ink-soft);}
.demo-stage{grid-column:span 6;position:relative;display:flex;justify-content:center;align-items:center;min-height:420px;}
.phone{width:min(268px,78%);border-radius:34px;border:1px solid var(--line);background:var(--card);padding:10px;box-shadow:var(--shadow-2);}
.phone img{width:100%;aspect-ratio:9/16;object-fit:cover;border-radius:26px;}
.phone.back{position:absolute;right:4%;bottom:0;width:min(210px,60%);transform:translateY(26px);opacity:.92;}
.hero-figure img,.phone img{background:var(--paper-2);}

/* ---------- 证据 ---------- */
.proof-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.stat{background:var(--card);border:1px solid var(--line-2);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-1);transition:transform .22s var(--ease),box-shadow .22s var(--ease);}
.stat:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.stat b{display:block;font-size:28px;font-weight:800;color:var(--ink);line-height:1.1;font-variant-numeric:tabular-nums;}
.stat span{display:block;margin-top:8px;font-size:13px;color:var(--muted);line-height:1.7;}
.logo-wall{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px;}
.logo-chip{filter:grayscale(1);opacity:.6;color:var(--muted);border:1px solid var(--line-2);border-radius:12px;padding:10px 18px;font-weight:700;font-size:14px;transition:filter .22s var(--ease),opacity .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);}
.logo-chip:hover{filter:none;opacity:1;color:var(--ink);border-color:var(--mist);}
.quotes{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:36px;}
.quote{background:var(--card);border:1px solid var(--line-2);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow-1);}
.quote::before{content:"\201C";display:block;color:var(--accent);font-size:46px;line-height:.8;font-weight:800;margin-bottom:10px;}
.quote p{font-size:15.5px;color:var(--text);line-height:1.85;}
.quote footer{margin-top:16px;font-size:13px;color:var(--muted);}

/* ---------- 方案 ---------- */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch;margin-top:36px;}
.plan{background:var(--card);border:1px solid var(--line-2);border-radius:var(--radius);padding:28px;display:flex;flex-direction:column;box-shadow:var(--shadow-1);transition:transform .22s var(--ease),box-shadow .22s var(--ease);position:relative;}
.plan:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.plan.featured{background:var(--ink);border-color:var(--ink);color:var(--reverse);transform:scale(1.06);z-index:2;box-shadow:var(--shadow-2);}
.plan.featured h3,.plan.featured .plan-price{color:#fff;}
.plan.featured p,.plan.featured li{color:rgba(243,241,236,.86);}
.plan.featured:hover{transform:scale(1.06) translateY(-4px);}
.plan-badge{position:absolute;top:-13px;left:28px;background:var(--accent);color:#fff;font-size:12px;font-weight:700;padding:4px 12px;border-radius:999px;}
.plan h3{font-size:1.15rem;margin-bottom:6px;}
.plan-price{font-size:1.5rem;font-weight:800;color:var(--ink);margin:10px 0 4px;font-variant-numeric:tabular-nums;}
.plan-note{font-size:13px;color:var(--muted);}
.plan ul{margin:20px 0 24px;display:flex;flex-direction:column;gap:10px;}
.plan li{position:relative;padding-left:20px;font-size:14.5px;color:var(--muted);line-height:1.7;}
.plan li::before{content:"";position:absolute;left:0;top:9px;width:8px;height:2px;background:var(--mist);}
.plan.featured li::before{background:var(--accent);}
.plan .btn{margin-top:auto;width:100%;}
.compare{margin-top:48px;overflow-x:auto;}
.compare-inner{min-width:640px;border-top:1px solid var(--line-2);}
.compare-row{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:16px;padding:14px 10px;border-bottom:1px solid var(--line-2);font-size:14.5px;color:var(--muted);transition:background .2s var(--ease);}
.compare-row strong{color:var(--ink);font-weight:600;}
.compare-row:hover{background:var(--hover-bg);}
.compare-row.head{font-size:12px;letter-spacing:.08em;color:var(--ink-soft);font-weight:700;}

/* ---------- 最新信息 ---------- */
.news-head{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;flex-wrap:wrap;}
.news-head .h2{margin-top:14px;}
.news-tools{display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.search-field{display:flex;align-items:center;gap:8px;background:var(--card);border:1px solid var(--line-2);border-radius:var(--radius-input);padding:8px 12px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);}
.search-field:focus-within{border-color:var(--ink);box-shadow:0 0 0 3px rgba(228,105,60,.35);}
.search-field input{border:0;background:transparent;font-size:14px;font-family:inherit;color:var(--text);outline:none;width:190px;padding:4px 0;}
.search-field input::placeholder{color:#9AA5A0;}
.news-feature{display:grid;grid-template-columns:5fr 7fr;margin-top:32px;background:var(--card);border:1px solid var(--line-2);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .22s var(--ease),box-shadow .22s var(--ease);}
.news-feature:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.news-feature a{display:contents;color:inherit;}
.news-feature .thumb{overflow:hidden;}
.news-feature .thumb img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .4s var(--ease);}
.news-feature:hover .thumb img{transform:scale(1.03);}
.news-feature-body{padding:30px;display:flex;flex-direction:column;gap:12px;justify-content:center;}
.news-feature-body h3{font-size:clamp(1.15rem,1.8vw,1.5rem);line-height:1.45;}
.news-feature-body p{font-size:15px;color:var(--muted);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:13px;color:var(--muted);}
.news-list{margin-top:8px;}
.news-row{display:grid;grid-template-columns:104px 1fr auto;gap:24px;align-items:center;padding:20px 12px;border-bottom:1px dashed var(--dash);color:inherit;transition:background .2s var(--ease);}
.news-row:hover{background:var(--hover-bg);color:inherit;}
.news-date{font-size:13px;color:var(--muted);line-height:1.6;font-variant-numeric:tabular-nums;}
.news-date b{display:block;font-size:16px;color:var(--ink);font-weight:700;}
.news-row h4{font-size:16.5px;font-weight:600;color:var(--ink);line-height:1.6;}
.news-row p{font-size:14px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-top:4px;}
.news-right{display:flex;align-items:center;gap:14px;}
.news-arrow{color:var(--ink-soft);transition:transform .22s var(--ease);display:inline-flex;}
.news-row:hover .news-arrow{transform:translateX(4px);}
.news-empty{margin-top:32px;text-align:center;padding:56px 24px;border:1px dashed var(--dash);border-radius:var(--radius);background:var(--card);}
.news-empty svg{color:var(--mist);margin-bottom:14px;}
.news-empty p{font-size:15px;color:var(--muted);margin-bottom:18px;}

/* ---------- 分类入口 ---------- */
.topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:32px;}
.topic-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line-2);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .22s var(--ease),box-shadow .22s var(--ease);color:inherit;}
.topic-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);color:inherit;}
.topic-card .thumb{overflow:hidden;}
.topic-card img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .4s var(--ease);}
.topic-card:hover img{transform:scale(1.03);}
.topic-body{padding:20px;display:flex;flex-direction:column;gap:8px;flex:1;}
.topic-body h3{font-size:1.02rem;line-height:1.5;}
.topic-body p{font-size:13.5px;color:var(--muted);line-height:1.7;}
.topic-body .arrow{margin-top:auto;color:var(--ink-soft);display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;transition:transform .22s var(--ease);}
.topic-card:hover .arrow{transform:translateX(4px);}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.faq-aside{grid-column:span 4;position:sticky;top:110px;align-self:start;}
.faq-aside .h2{margin:14px 0 12px;}
.faq-list{grid-column:span 8;}
.faq-item{border-bottom:1px solid var(--line-2);}
.faq-q{width:100%;background:none;border:0;text-align:left;padding:22px 44px 22px 18px;font-size:17px;font-weight:600;color:var(--text);cursor:pointer;position:relative;font-family:inherit;line-height:1.6;transition:color .2s var(--ease);}
.faq-q::before{content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;background:var(--accent);border-radius:2px;opacity:0;transition:opacity .2s var(--ease);}
.faq-item.open .faq-q{color:var(--ink);}
.faq-item.open .faq-q::before{opacity:1;}
.faq-q:hover{color:var(--ink-soft);}
.faq-q .chev{position:absolute;right:8px;top:50%;transform:translateY(-50%);color:var(--ink-soft);transition:transform .28s var(--ease);display:inline-flex;}
.faq-item.open .chev{transform:translateY(-50%) rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease);}
.faq-a-inner{padding:0 44px 22px 18px;font-size:15px;color:var(--muted);line-height:1.85;}

/* ---------- CTA 带 ---------- */
.cta-band{background:var(--ink-deep);border-radius:24px;padding:clamp(32px,5vw,56px);display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;color:var(--reverse);}
.cta-band h2{color:var(--reverse);font-size:clamp(1.4rem,2.4vw,2rem);font-weight:700;line-height:1.3;}
.cta-band p{color:rgba(243,241,236,.72);font-size:15px;margin-top:10px;max-width:44em;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-deep);color:var(--reverse);padding:clamp(48px,6vw,80px) 0 0;margin-top:clamp(40px,5vw,72px);}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;}
.footer-brand .logo{color:var(--reverse);font-size:16px;}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(243,241,236,.68);margin-top:16px;max-width:32em;}
.footer-col h4{font-size:13px;font-weight:700;letter-spacing:.14em;color:rgba(243,241,236,.55);margin-bottom:16px;}
.footer-col a,.footer-col span{display:block;font-size:14px;line-height:2;color:rgba(243,241,236,.82);transition:color .2s var(--ease),transform .2s var(--ease);}
.footer-col a:hover{color:var(--mist);transform:translateX(2px);}
.footer-bottom{border-top:1px solid rgba(243,241,236,.16);margin-top:48px;padding:20px 0;font-size:12px;line-height:1.8;opacity:.55;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;}

/* ---------- 浮动 CTA ---------- */
.float-cta{position:fixed;right:24px;bottom:24px;z-index:70;opacity:0;pointer-events:none;transform:translateY(10px);transition:opacity .3s var(--ease),transform .3s var(--ease);}
.float-cta.show{opacity:1;pointer-events:auto;transform:none;}

/* ---------- 进入动画 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .42s var(--ease),transform .42s var(--ease);}
.reveal.in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .hero-copy{grid-column:span 7;}
  .hero-visual{grid-column:span 5;}
  .demo-copy,.demo-stage{grid-column:span 6;}
  .proof-stats{grid-template-columns:repeat(2,1fr);}
  .topic-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px;}
  .footer-col:last-child{grid-column:1 / -1;}
  .plan.featured{transform:scale(1.03);}
  .plan.featured:hover{transform:scale(1.03) translateY(-4px);}
}
@media (max-width:900px){
  .dock-nav{display:none;}
  .burger{display:inline-flex;}
  .dock{max-width:100%;}
}
@media (max-width:768px){
  body{padding-bottom:96px;}
  .container{padding:0 20px;}
  .dock-wrap{top:auto;bottom:12px;padding:0 16px;}
  .dock-wrap.scrolled{top:auto;}
  .dock{height:56px;padding:0 10px 0 14px;}
  .dock.scrolled{height:56px;}
  .dock-actions .icon-btn{display:none;}
  .float-cta{left:16px;right:16px;bottom:calc(76px + env(safe-area-inset-bottom));width:auto;}
  .float-cta .btn{width:100%;}
  .hero{padding-top:112px;}
  .hero-grid{grid-template-columns:1fr;gap:28px;}
  .hero-copy,.hero-visual{grid-column:span 12;}
  .metrics{grid-template-columns:repeat(2,1fr);gap:18px;}
  .value-aside{grid-column:span 12;position:static;}
  .value-list{grid-column:span 12;}
  .value-item{grid-template-columns:56px 1fr;gap:14px;padding:20px 0;}
  .value-num{font-size:32px;}
  .demo-copy,.demo-stage{grid-column:span 12;}
  .demo-stage{min-height:360px;margin-top:8px;}
  .phone{width:min(230px,66%);}
  .phone.back{width:min(170px,50%);right:0;}
  .proof-stats{grid-template-columns:repeat(2,1fr);}
  .quotes{grid-template-columns:1fr;}
  .plans{grid-template-columns:1fr;}
  .plan.featured{order:-1;transform:none;}
  .plan.featured:hover{transform:translateY(-4px);}
  .news-feature{grid-template-columns:1fr;}
  .news-feature .thumb img{aspect-ratio:16/9;}
  .news-feature-body{padding:22px;}
  .news-row{grid-template-columns:1fr;gap:8px;padding:18px 8px;}
  .news-date{display:flex;gap:10px;align-items:baseline;}
  .news-date b{display:inline;font-size:14px;}
  .news-right{justify-content:space-between;}
  .faq-aside{grid-column:span 12;position:static;}
  .faq-list{grid-column:span 12;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .footer-brand{grid-column:1 / -1;}
  .footer-col:last-child{grid-column:1 / -1;}
  .search-field input{width:130px;}
}
@media (max-width:520px){
  .hero-title{font-size:clamp(1.85rem,8.4vw,2.4rem);}
  .hero-sub{font-size:15.5px;}
  .hero-cta .btn{width:100%;}
  .topic-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .compare-inner{min-width:560px;}
  .news-tools{width:100%;}
  .search-field{flex:1;}
  .search-field input{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  .hero-figure::after{animation:none;display:none;}
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
}

/* roulang page: article */
:root{
  --ink:#1E3D3A;
  --ink-deep:#10201E;
  --ink-light:#2F6A62;
  --accent:#E4693C;
  --accent-dark:#C9552C;
  --mist:#8FB3AB;
  --paper:#F6F4EF;
  --paper-2:#ECEAE3;
  --paper-3:#F1EEE7;
  --card:#FFFFFF;
  --line:#DAD6CC;
  --line-2:#E4E0D6;
  --line-3:#DDD8CD;
  --text:#14201E;
  --muted:#5A6663;
  --inv:#F3F1EC;
  --radius-l:18px;
  --radius-m:14px;
  --radius-s:12px;
  --shadow-1:0 1px 2px rgba(20,32,30,.06);
  --shadow-2:0 14px 34px -14px rgba(20,32,30,.18);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --space-section:clamp(72px,9vw,132px);
  --wrap:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  padding-bottom:96px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--ink-light);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--accent)}
button{font-family:inherit;font-size:inherit;cursor:pointer}
input,textarea,select{font-family:inherit;font-size:inherit;color:var(--text)}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(228,105,60,.22);color:var(--ink-deep)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}

/* ============ 按钮与徽章 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;border:1.5px solid transparent;
  padding:14px 28px;font-size:15px;font-weight:600;line-height:1.2;
  transition:background .22s ease,color .22s ease,transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  text-align:center;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 14px 26px -14px rgba(201,85,44,.7)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:rgba(30,61,58,.08);color:var(--ink)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;box-shadow:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:14.5px;color:var(--ink)}
.link-arrow svg{transition:transform .22s ease}
.link-arrow:hover{color:var(--accent);box-shadow:inset 0 -2px 0 var(--accent)}
.link-arrow:hover svg{transform:translateX(4px)}
.badge{
  display:inline-block;background:#E3EDEA;color:var(--ink);
  font-size:12px;font-weight:600;line-height:1.6;border-radius:6px;padding:4px 10px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.18em;color:var(--ink-light);text-transform:uppercase;
}
.eyebrow::before{content:"";width:8px;height:2px;background:var(--accent);display:inline-block}

/* ============ 浮动 Dock 导航 ============ */
.dock-wrap{
  position:fixed;top:20px;left:0;right:0;z-index:900;
  display:flex;justify-content:center;padding:0 20px;
  transition:top .24s ease;
  pointer-events:none;
}
.dock{
  pointer-events:auto;
  width:100%;max-width:900px;height:60px;
  display:flex;align-items:center;gap:18px;
  padding:0 12px 0 22px;
  background:rgba(246,244,239,.9);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid var(--line);
  border-radius:999px;
  box-shadow:var(--shadow-1);
  transition:height .24s ease,box-shadow .24s ease,background .24s ease;
}
.dock.is-stuck{height:52px;box-shadow:var(--shadow-2);background:rgba(246,244,239,.96)}
.dock-wrap.is-stuck{top:12px}
.logo{
  font-weight:800;font-size:16px;letter-spacing:-.01em;color:var(--ink);
  white-space:nowrap;display:inline-flex;align-items:center;gap:2px;
}
.logo .dot{color:var(--accent);margin:0 2px}
.logo:hover{color:var(--ink)}
.dock-nav{
  display:flex;align-items:center;gap:4px;margin-left:auto;
}
.dock-nav a{
  position:relative;display:inline-block;
  padding:8px 12px;font-size:14px;font-weight:600;color:var(--muted);
  border-radius:999px;transition:color .2s ease,background .2s ease;
}
.dock-nav a:hover{color:var(--ink);background:rgba(30,61,58,.06)}
.dock-nav a.is-active{color:var(--ink)}
.dock-nav a.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--accent);border-radius:2px;
}
.dock-actions{display:flex;align-items:center;gap:8px;margin-left:auto}
.dock-nav + .dock-actions{margin-left:8px}
.icon-btn{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:999px;border:1px solid transparent;background:transparent;color:var(--muted);
  transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.icon-btn:hover{color:var(--ink);background:rgba(30,61,58,.07);border-color:var(--line)}
.burger{display:none;width:38px;height:38px;align-items:center;justify-content:center;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--ink)}
.burger:hover{background:var(--paper-2)}

/* 移动端全屏面板 */
.mobile-panel{
  position:fixed;inset:0;z-index:1200;background:var(--paper);
  display:flex;flex-direction:column;padding:24px;
  transform:translateY(100%);opacity:0;visibility:hidden;
  transition:transform .32s cubic-bezier(.22,.61,.36,1),opacity .28s ease,visibility .32s;
}
.mobile-panel.is-open{transform:translateY(0);opacity:1;visibility:visible}
.mobile-panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.mobile-panel-head .logo{font-size:16px}
.panel-close{width:42px;height:42px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--ink);display:flex;align-items:center;justify-content:center}
.panel-close:hover{background:var(--paper-2)}
.mobile-panel nav{display:flex;flex-direction:column;border-top:1px solid var(--line-2)}
.mobile-panel nav a{
  font-size:20px;line-height:56px;color:var(--ink);font-weight:600;
  border-bottom:1px solid var(--line-2);display:flex;align-items:center;justify-content:space-between;
}
.mobile-panel nav a:hover{color:var(--accent)}
.mobile-panel .panel-cta{margin-top:auto;padding-top:24px}
.mobile-panel .panel-cta .btn{width:100%}

/* ============ 面包屑 ============ */
.page-top{padding-top:108px}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:6px;
  font-size:13px;line-height:1.7;color:var(--muted);
}
.breadcrumb .sep{color:var(--mist);font-weight:700}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--ink-light)}
.breadcrumb .current{
  color:var(--text);max-width:46ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* ============ 文章头部 ============ */
.article-head{padding:26px 0 34px;max-width:820px}
.article-head h1{
  font-size:clamp(1.8rem,2.9vw,2.6rem);
  line-height:1.3;font-weight:800;letter-spacing:-.01em;margin:14px 0 18px;
}
.meta-row{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px 18px;
  font-size:13px;line-height:1.7;color:var(--muted);
}
.meta-row .divider{width:1px;height:13px;background:var(--line);display:inline-block}
.meta-line{height:1px;background:var(--line);margin:26px 0 0}

/* ============ 主体布局 ============ */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 336px;gap:56px;
  align-items:start;padding-bottom:var(--space-section);
}
.article-main{min-width:0;max-width:720px}

/* 正文排版 */
.article-body{font-size:16.5px;line-height:1.9;color:var(--text)}
.article-body > * + *{margin-top:1.2em}
.article-body p{margin:0}
.article-body h2{
  position:relative;font-size:clamp(1.35rem,2.1vw,1.7rem);line-height:1.4;
  font-weight:700;margin-top:2em;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.36em;width:3px;height:1.05em;
  background:var(--accent);border-radius:2px;
}
.article-body h3{font-size:1.2rem;line-height:1.5;font-weight:700;margin-top:1.8em}
.article-body h4{font-size:1.05rem;line-height:1.6;font-weight:700;margin-top:1.6em;color:var(--ink-light)}
.article-body a{color:var(--ink-light);border-bottom:1px solid rgba(47,106,98,.35)}
.article-body a:hover{color:var(--accent);border-bottom-color:var(--accent)}
.article-body strong{color:var(--ink);font-weight:700}
.article-body ul,.article-body ol{padding-left:0;margin:1.2em 0}
.article-body li{position:relative;padding-left:22px;margin:.55em 0}
.article-body ul > li::before{
  content:"";position:absolute;left:4px;top:.85em;width:7px;height:7px;border-radius:50%;
  background:var(--accent);opacity:.9;
}
.article-body ol{counter-reset:artlist}
.article-body ol > li{counter-increment:artlist;padding-left:30px}
.article-body ol > li::before{
  content:counter(artlist,decimal-leading-zero);
  position:absolute;left:0;top:0;color:var(--accent);font-weight:700;font-size:13px;
  line-height:1.9;
}
.article-body blockquote{
  margin:1.6em 0;padding:20px 22px;background:var(--paper-2);
  border-left:3px solid var(--accent);border-radius:0 var(--radius-s) var(--radius-s) 0;
  color:var(--ink);font-size:16px;line-height:1.85;
}
.article-body blockquote p + p{margin-top:.8em}
.article-body img{border-radius:var(--radius-m);width:100%;height:auto;margin:1.6em 0 .6em}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;line-height:1.7;margin-top:8px}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;
  border:1px solid var(--line-2);border-radius:var(--radius-s);overflow:hidden;
}
.article-body thead th{background:var(--ink);color:var(--inv);font-weight:600;text-align:left}
.article-body th,.article-body td{padding:11px 14px;border-bottom:1px solid var(--line-2);line-height:1.7}
.article-body tbody tr:nth-child(even){background:#FAF8F4}
.article-body tbody tr:hover{background:var(--paper-3)}
.article-body pre{
  background:var(--paper-2);border:1px solid var(--line-2);border-radius:var(--radius-s);
  padding:18px;overflow:auto;font-size:13.5px;line-height:1.7;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:var(--ink-deep);
}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.92em;background:var(--paper-2);border-radius:4px;padding:1px 5px;color:var(--ink);
}
.article-body pre code{background:none;padding:0}
.article-body hr{border:0;border-top:1px dashed var(--line-3);margin:2em 0}

/* 标签与翻页 */
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin:44px 0 0;padding-top:26px;border-top:1px solid var(--line-2)}
.tag-row .badge{background:#EDEBE3;color:var(--ink-light)}
.pager{
  display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:26px;
}
.pager a{
  display:flex;flex-direction:column;gap:4px;
  padding:18px 20px;background:var(--card);border:1px solid var(--line-2);
  border-radius:var(--radius-m);box-shadow:var(--shadow-1);
  transition:border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.pager a:hover{border-color:var(--ink-light);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.pager .pager-label{font-size:12px;letter-spacing:.14em;color:var(--muted);font-weight:700}
.pager .pager-title{font-size:15.5px;font-weight:700;color:var(--ink)}
.pager a:hover .pager-title{color:var(--ink-light)}
.pager .align-end{text-align:right;align-items:flex-end}

/* ============ 侧栏 ============ */
.side{position:sticky;top:96px;display:flex;flex-direction:column;gap:22px}
.side-card{
  background:var(--card);border:1px solid var(--line-2);border-radius:var(--radius-l);
  padding:22px;box-shadow:var(--shadow-1);
}
.side-card h2{font-size:13px;letter-spacing:.16em;font-weight:700;color:var(--ink-light);text-transform:uppercase;margin-bottom:14px}
.toc-list{display:flex;flex-direction:column;gap:2px;border-left:1px solid var(--line-2);padding-left:2px}
.toc-list a{
  display:block;font-size:14px;line-height:1.65;color:var(--muted);
  padding:7px 0 7px 14px;border-left:2px solid transparent;margin-left:-3px;
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.toc-list a:hover{color:var(--ink);background:var(--paper-3)}
.toc-list a.is-current{color:var(--ink);font-weight:600;border-left-color:var(--accent)}
.side-rec{display:flex;flex-direction:column;gap:14px}
.side-rec a{
  display:flex;gap:12px;align-items:flex-start;
  padding-bottom:14px;border-bottom:1px dashed var(--line-3);
}
.side-rec a:last-child{border-bottom:0;padding-bottom:0}
.side-rec img{width:64px;height:64px;flex:none;border-radius:10px;object-fit:cover;overflow:hidden}
.side-rec .rec-t{font-size:14px;font-weight:600;color:var(--ink);line-height:1.6}
.side-rec .rec-s{font-size:12.5px;color:var(--muted);line-height:1.6;margin-top:2px}
.side-rec a:hover .rec-t{color:var(--accent)}

/* 内容未找到 */
.empty-box{
  background:var(--card);border:1px dashed var(--line);border-radius:var(--radius-l);
  padding:56px 28px;text-align:center;box-shadow:var(--shadow-1);max-width:720px;
}
.empty-box .empty-icon{
  width:56px;height:56px;margin:0 auto 18px;border-radius:50%;
  background:#E3EDEA;color:var(--ink);display:flex;align-items:center;justify-content:center;
}
.empty-box h2{font-size:1.35rem;margin-bottom:10px}
.empty-box p{color:var(--muted);font-size:15px;margin-bottom:22px}

/* ============ 相关推荐 ============ */
.related{padding:0 0 var(--space-section)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap}
.sec-head h2{font-size:clamp(1.5rem,2.6vw,2.2rem);line-height:1.25;font-weight:700}
.sec-head p{color:var(--muted);font-size:14.5px;margin-top:8px;max-width:56ch}
.related-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.card{
  background:var(--card);border:1px solid var(--line-2);border-radius:var(--radius-l);
  box-shadow:var(--shadow-1);overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--line)}
.card-media{position:relative;overflow:hidden;aspect-ratio:4/3;background:var(--paper-2)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:1.05rem;line-height:1.5;font-weight:700}
.card-body p{font-size:14px;line-height:1.75;color:var(--muted)}
.card-foot{margin-top:auto;padding-top:6px}

/* ============ CTA 带 ============ */
.cta-band-wrap{padding:0 0 var(--space-section)}
.cta-band{
  background:var(--ink-deep);border-radius:24px;padding:clamp(34px,5vw,58px);
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-70px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(143,179,171,.22),transparent 70%);
}
.cta-band h2{color:var(--inv);font-size:clamp(1.35rem,2.4vw,1.9rem);line-height:1.35;font-weight:700;max-width:24ch}
.cta-band p{color:rgba(243,241,236,.7);font-size:14.5px;margin-top:10px;max-width:46ch}
.cta-band .btn{position:relative;z-index:2;flex:none}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-deep);color:var(--inv);margin-top:0;padding:clamp(52px,6vw,76px) 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px 28px;padding-bottom:44px}
.footer-brand .logo{color:var(--inv);font-size:17px}
.footer-brand p{color:rgba(243,241,236,.62);font-size:13.5px;line-height:1.8;margin-top:14px;max-width:34ch}
.footer-col h3{font-size:12px;letter-spacing:.16em;font-weight:700;color:var(--mist);text-transform:uppercase;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{color:rgba(243,241,236,.78);font-size:14px;transition:color .2s ease,transform .2s ease;display:inline-block}
.footer-col a:hover{color:var(--mist);transform:translateX(2px)}
.footer-note{font-size:13px;color:rgba(243,241,236,.55);line-height:1.8}
.footer-bottom{
  border-top:1px solid rgba(243,241,236,.14);padding:18px 0 22px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12px;color:rgba(243,241,236,.55);
}
.footer-bottom a{color:rgba(243,241,236,.55)}
.footer-bottom a:hover{color:var(--mist)}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:700;
  display:inline-flex;align-items:center;gap:8px;
  height:52px;padding:0 24px;border-radius:999px;
  background:var(--ink);color:var(--inv);font-size:14.5px;font-weight:600;
  box-shadow:var(--shadow-2);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s,background .22s ease;
}
.float-cta.is-on{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta:hover{background:var(--ink-light);color:#fff}

/* ============ 入场动画 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .42s cubic-bezier(.22,.61,.36,1),transform .42s cubic-bezier(.22,.61,.36,1)}
.reveal.is-in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:40px}
  .article-main{max-width:100%}
  .side{position:static;top:auto;flex-direction:row;flex-wrap:wrap}
  .side-card{flex:1 1 320px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  body{font-size:16px;padding-bottom:132px}
  .container{padding:0 20px}
  .page-top{padding-top:86px}
  .dock-wrap{top:auto;bottom:12px;padding:0 16px;justify-content:stretch}
  .dock-wrap.is-stuck{top:auto}
  .dock{height:58px;padding:0 10px 0 16px;gap:10px;max-width:100%}
  .dock.is-stuck{height:58px}
  .dock-nav{display:none}
  .dock-actions .btn{display:none}
  .burger{display:inline-flex}
  .logo{font-size:14.5px;overflow:hidden;text-overflow:ellipsis}
  .breadcrumb .current{max-width:24ch}
  .article-head{padding:20px 0 26px}
  .side{flex-direction:column}
  .related-grid{grid-template-columns:1fr}
  .pager{grid-template-columns:1fr}
  .pager .align-end{text-align:left;align-items:flex-start}
  .cta-band{padding:30px 24px;border-radius:20px}
  .cta-band .btn{width:100%}
  .float-cta{
    right:16px;left:16px;width:calc(100% - 32px);bottom:calc(84px + env(safe-area-inset-bottom,0px));
    justify-content:center;
  }
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{font-size:11.5px}
  .article-body h2{margin-top:1.7em}
}
@media (max-width:520px){
  .article-head h1{font-size:1.6rem}
  .meta-row{font-size:12.5px;gap:8px 12px}
  .card-body{padding:18px 18px 20px}
  .tag-row{gap:6px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  .reveal{opacity:1;transform:none}
  .card:hover{transform:none}
  .float-cta{transform:none}
}

/* roulang page: category1 */
:root{
  --ink:#1E3D3A;
  --ink-deep:#10201E;
  --ink-soft:#2F6A62;
  --orange:#E4693C;
  --orange-deep:#C9552C;
  --mist:#8FB3AB;
  --paper:#F6F4EF;
  --paper-2:#ECEAE3;
  --card:#FFFFFF;
  --line:#DAD6CC;
  --line-2:#E4E0D6;
  --text:#14201E;
  --muted:#5A6663;
  --inv:#F3F1EC;
  --r-card:18px;
  --r-img:14px;
  --r-input:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,32,30,.06);
  --sh-2:0 14px 34px -14px rgba(20,32,30,.18);
  --sp-section:clamp(72px,9vw,132px);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  font-weight:400;
  padding-bottom:96px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--ink-soft);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--ink)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
figure{margin:0}
:focus-visible{outline:2px solid var(--orange);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:var(--sp-section) 0}
.num{font-variant-numeric:tabular-nums}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);border:1.5px solid transparent;
  padding:14px 28px;font-size:15px;font-weight:600;line-height:1.2;
  cursor:pointer;text-decoration:none;transition:all .22s var(--ease);
  white-space:nowrap;
}
.btn-sm{padding:10px 20px;font-size:13.5px}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 6px 16px -10px rgba(228,105,60,.9)}
.btn-primary:hover{background:var(--orange-deep);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px -12px rgba(228,105,60,.95)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 10px -8px rgba(228,105,60,.9)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:rgba(30,61,58,.08);color:var(--ink)}
.btn-ghost:active{background:rgba(30,61,58,.14)}
.btn-link{background:none;border:0;padding:6px 0;color:var(--ink-soft);font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:6px}
.btn-link .arw{transition:transform .22s var(--ease)}
.btn-link:hover{color:var(--ink)}
.btn-link:hover .arw{transform:translateX(4px)}
.btn-link:hover span.lbl{box-shadow:inset 0 -2px 0 var(--orange)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;pointer-events:none}

/* ---------- 浮动 Dock ---------- */
.dock-wrap{
  position:fixed;top:20px;left:0;right:0;z-index:80;
  display:flex;justify-content:center;padding:0 20px;pointer-events:none;
}
.dock{
  pointer-events:auto;
  width:100%;max-width:1120px;height:60px;
  display:flex;align-items:center;gap:16px;
  padding:0 10px 0 20px;
  background:rgba(246,244,239,.9);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border:1px solid var(--line);border-radius:var(--r-pill);
  box-shadow:var(--sh-1);
  transition:height .24s var(--ease),box-shadow .24s var(--ease),margin .24s var(--ease),background .24s var(--ease);
}
.dock-wrap.is-scrolled .dock{height:52px;margin-top:-8px;box-shadow:var(--sh-2);background:rgba(246,244,239,.96)}
.logo{
  font-size:15px;font-weight:800;color:var(--ink);letter-spacing:-.01em;
  white-space:nowrap;flex:0 0 auto;
}
.logo .dot{color:var(--orange);padding:0 2px}
.dock-nav{display:flex;align-items:center;justify-content:center;gap:2px;flex:1 1 auto;min-width:0}
.dock-nav a{
  position:relative;font-size:14px;font-weight:500;color:var(--muted);
  padding:7px 11px;border-radius:8px;white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.dock-nav a:hover{color:var(--ink);background:rgba(30,61,58,.06)}
.dock-nav a::after{
  content:"";position:absolute;left:11px;right:11px;bottom:1px;height:2px;
  background:var(--orange);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.dock-nav a.is-active{color:var(--ink);font-weight:700}
.dock-nav a.is-active::after{transform:scaleX(1)}
.dock-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.icon-btn{
  width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid transparent;border-radius:50%;
  color:var(--ink);cursor:pointer;transition:all .2s var(--ease);
}
.icon-btn:hover{background:rgba(30,61,58,.08);border-color:var(--line)}
.burger{display:none;width:38px;height:38px;align-items:center;justify-content:center;background:transparent;border:1px solid var(--line);border-radius:50%;color:var(--ink);cursor:pointer}

/* 移动端全屏面板 */
.mobile-panel{
  position:fixed;inset:0;z-index:90;background:var(--paper);
  display:flex;flex-direction:column;padding:22px;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .26s var(--ease),transform .26s var(--ease),visibility .26s;
}
.mobile-panel.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.mobile-panel .panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.mobile-panel .panel-head .logo{font-size:16px}
.panel-close{width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;background:transparent;border:1px solid var(--line);border-radius:50%;color:var(--ink);cursor:pointer}
.mobile-panel nav{display:flex;flex-direction:column;padding-top:12px}
.mobile-panel nav a{
  font-size:20px;line-height:56px;color:var(--ink);font-weight:600;
  border-bottom:1px solid var(--line-2);
}
.mobile-panel nav a.is-active{color:var(--orange)}
.mobile-panel .panel-cta{margin-top:auto;padding-top:20px}

/* ---------- 页首 ---------- */
.page-head{padding:calc(60px + 20px + clamp(56px,7vw,88px)) 0 clamp(48px,6vw,80px)}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;font-weight:700;letter-spacing:.18em;color:var(--ink-soft);
  text-transform:uppercase;margin-bottom:18px;
}
.eyebrow::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--orange);display:block}
.page-head h1{
  font-size:clamp(2.1rem,4.6vw,3.9rem);font-weight:800;line-height:1.15;letter-spacing:-.01em;
  max-width:20ch;
}
.page-head .lead{
  margin-top:22px;font-size:17px;line-height:1.9;color:var(--muted);max-width:62ch;
}
.page-head .lead strong{color:var(--ink);font-weight:600}
.head-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.head-meta{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  background:#E3EDEA;color:var(--ink);
  font-size:12px;font-weight:600;border-radius:6px;padding:5px 11px;
}
.badge-line{background:transparent;border:1px solid var(--line);color:var(--muted)}

/* ---------- 主体：图文 + 清单 ---------- */
.split{display:grid;grid-template-columns:5fr 7fr;gap:24px;align-items:start}
.split-media{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line-2);box-shadow:var(--sh-1);background:var(--card);
}
.split-media img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .4s var(--ease)}
.split-media:hover img{transform:scale(1.03)}
.split-media figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:14px 18px;
  font-size:12.5px;color:var(--inv);
  background:linear-gradient(to top,rgba(16,32,30,.82),rgba(16,32,30,0));
}
.split-media .tag-float{
  position:absolute;top:14px;left:14px;background:rgba(246,244,239,.94);
  border:1px solid var(--line);border-radius:var(--r-pill);
  font-size:12px;font-weight:700;color:var(--ink);padding:5px 12px;letter-spacing:.04em;
}
.points{display:flex;flex-direction:column}
.point{
  display:grid;grid-template-columns:52px 1fr;gap:18px;
  padding:22px 4px;border-bottom:1px dashed #DDD8CD;
  transition:background .22s var(--ease);
}
.point:first-child{padding-top:6px}
.point:last-child{border-bottom:0}
.point:hover{background:#F1EEE7}
.point .pico{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:12px;color:var(--ink-soft);background:var(--card);
}
.point h3{font-size:1.25rem;font-weight:700;line-height:1.4;margin-bottom:6px}
.point p{font-size:15px;line-height:1.8;color:var(--muted)}

.section-head{max-width:64ch;margin-bottom:clamp(28px,4vw,48px)}
.section-head .eyebrow{margin-bottom:14px}
.section-head h2{font-size:clamp(1.5rem,2.6vw,2.2rem);font-weight:700;line-height:1.25}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px;line-height:1.85}

/* ---------- 自查三卡 ---------- */
.check-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.check-card{
  background:var(--card);border:1px solid var(--line-2);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.check-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.check-card .idx{
  font-size:13px;font-weight:800;letter-spacing:.14em;color:var(--mist);
  font-variant-numeric:tabular-nums;display:block;margin-bottom:14px;
}
.check-card h3{font-size:1.1rem;font-weight:700;margin-bottom:10px}
.check-card p{font-size:15px;color:var(--muted);line-height:1.8}

/* ---------- 三步流程 ---------- */
.steps-wrap{background:var(--paper-2);border-radius:24px;padding:clamp(28px,4vw,52px)}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:8px}
.step{position:relative;padding-top:26px;border-top:2px solid var(--line)}
.step::before{
  content:"";position:absolute;top:-6px;left:0;width:10px;height:10px;border-radius:50%;
  background:var(--orange);
}
.step .sn{
  font-size:34px;font-weight:800;color:var(--mist);line-height:1;
  font-variant-numeric:tabular-nums;margin-bottom:12px;
}
.step h3{font-size:1.05rem;font-weight:700;margin-bottom:8px}
.step p{font-size:14.5px;color:var(--muted);line-height:1.8}

/* ---------- 交叉链接 ---------- */
.cross-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cross-card{
  display:block;background:var(--card);border:1px solid var(--line-2);
  border-radius:var(--r-card);padding:24px 26px;color:inherit;
  box-shadow:var(--sh-1);transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.cross-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line)}
.cross-card h3{font-size:1.05rem;font-weight:700;margin-bottom:8px;display:flex;align-items:center;justify-content:space-between;gap:10px}
.cross-card p{font-size:14.5px;color:var(--muted);line-height:1.75}
.cross-card .arw{color:var(--orange);flex:0 0 auto;transition:transform .22s var(--ease)}
.cross-card:hover .arw{transform:translateX(4px)}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--ink-deep);border-radius:24px;
  padding:clamp(32px,5vw,56px);
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band h2{color:var(--inv);font-size:clamp(1.4rem,2.4vw,2rem);font-weight:700;line-height:1.3;max-width:24ch}
.cta-band p{color:rgba(243,241,236,.72);font-size:15px;margin-top:10px;max-width:46ch;line-height:1.8}

/* ---------- 页脚 ---------- */
footer{background:var(--ink-deep);color:var(--inv);margin-top:var(--sp-section);padding-top:clamp(48px,6vw,76px)}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding-bottom:48px}
.foot-brand .logo{color:var(--inv);font-size:16px}
.foot-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(243,241,236,.66);max-width:34ch}
.foot-quote{
  margin-top:20px;padding:12px 16px;border-left:3px solid var(--orange);
  background:rgba(243,241,236,.06);border-radius:0 10px 10px 0;
  font-size:13px;color:rgba(243,241,236,.72);
}
.foot-col h4{color:var(--inv);font-size:13px;font-weight:700;letter-spacing:.14em;margin-bottom:16px}
.foot-col ul{display:flex;flex-direction:column;gap:11px}
.foot-col a{color:rgba(243,241,236,.72);font-size:14px;display:inline-block;transition:color .2s var(--ease),transform .2s var(--ease)}
.foot-col a:hover{color:var(--mist);transform:translateX(2px)}
.foot-col p{color:rgba(243,241,236,.72);font-size:14px;line-height:1.9}
.foot-bottom{
  border-top:1px solid rgba(243,241,236,.14);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:12px;color:rgba(243,241,236,.55);
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:70;
  height:52px;padding:0 24px;display:inline-flex;align-items:center;gap:8px;
  background:var(--ink);color:var(--inv);border-radius:var(--r-pill);
  font-size:14px;font-weight:600;box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),visibility .3s var(--ease),background .2s var(--ease);
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta:hover{background:var(--ink-soft);color:var(--inv)}

/* ---------- 进入动画 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .42s var(--ease),transform .42s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .split{grid-template-columns:1fr}
  .split-media img{aspect-ratio:16/9}
  .check-grid{grid-template-columns:repeat(3,1fr);gap:18px}
  .cross-grid{gap:18px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  body{font-size:16px}
  .container{padding:0 20px}
  .dock-wrap{top:auto;bottom:calc(12px + env(safe-area-inset-bottom));padding:0 16px}
  .dock{max-width:none;height:58px;padding:0 8px 0 16px;gap:10px}
  .dock-wrap.is-scrolled .dock{height:54px;margin-top:0}
  .dock-nav{display:none}
  .dock-actions .btn{display:none}
  .burger{display:inline-flex}
  .page-head{padding-top:calc(48px + 16px)}
  .page-head h1{max-width:none}
  .check-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr;gap:20px}
  .cross-grid{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start}
  .foot-grid{grid-template-columns:1fr;gap:30px}
  .float-cta{
    right:16px;left:16px;bottom:calc(84px + env(safe-area-inset-bottom));
    width:auto;justify-content:center;
  }
}
@media (max-width:520px){
  .point{grid-template-columns:44px 1fr;gap:14px}
  .head-actions .btn{width:100%}
  .split-media figcaption{font-size:12px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --ink:#1E3D3A;
  --ink-deep:#10201E;
  --ink-light:#2F6A62;
  --accent:#E4693C;
  --accent-deep:#C9552C;
  --moss:#8FB3AB;
  --moss-soft:#E3EDEA;
  --paper:#F6F4EF;
  --paper-2:#ECEAE3;
  --card:#FFFFFF;
  --line:#DAD6CC;
  --line-2:#E4E0D6;
  --line-dash:#DDD8CD;
  --text:#14201E;
  --muted:#5A6663;
  --inverse:#F3F1EC;
  --r-card:18px;
  --r-img:14px;
  --r-input:12px;
  --sh-1:0 1px 2px rgba(20,32,30,.06);
  --sh-2:0 14px 34px -14px rgba(20,32,30,.18);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  padding-bottom:96px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:var(--ink-light);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--ink)}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:clamp(72px,9vw,132px) 0}
.section--tight{padding:clamp(52px,6vw,88px) 0}

/* ============ 浮动 Dock 导航 ============ */
.dock-wrap{
  position:fixed;top:20px;left:0;right:0;z-index:100;
  display:flex;justify-content:center;
  padding:0 24px;
  pointer-events:none;
  transition:top .24s var(--ease);
}
.dock-wrap.is-scrolled{top:12px}
.dock{
  pointer-events:auto;
  display:flex;align-items:center;gap:20px;
  width:100%;max-width:960px;height:60px;
  padding:0 10px 0 24px;
  background:rgba(246,244,239,.9);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid var(--line);
  border-radius:999px;
  box-shadow:var(--sh-1);
  transition:height .24s var(--ease),box-shadow .24s var(--ease),max-width .24s var(--ease);
}
.dock-wrap.is-scrolled .dock{height:52px;box-shadow:0 10px 28px -14px rgba(20,32,30,.28)}
.logo{
  flex-shrink:0;
  font-size:15.5px;font-weight:800;letter-spacing:-.01em;
  color:var(--ink);white-space:nowrap;
}
.logo .dot{color:var(--accent);margin:0 2px}
.dock-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.dock-nav a{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:14px;font-weight:500;
  color:var(--muted);
  border-radius:999px;
  white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.dock-nav a::after{
  content:"";position:absolute;left:50%;bottom:2px;
  width:0;height:2px;background:var(--accent);
  transform:translateX(-50%);
  border-radius:2px;
  transition:width .22s var(--ease);
}
.dock-nav a:hover{color:var(--ink);background:rgba(30,61,58,.06)}
.dock-nav a.is-active{color:var(--ink);font-weight:700}
.dock-nav a.is-active::after{width:22px}
.dock-actions{display:flex;align-items:center;gap:8px;flex-shrink:0;margin-left:8px}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:999px;
  color:var(--ink);
  transition:background .2s var(--ease),transform .2s var(--ease);
}
.icon-btn:hover{background:rgba(30,61,58,.08)}
.icon-btn:active{transform:translateY(1px)}
.burger{display:none;align-items:center;justify-content:center;width:40px;height:40px;border-radius:999px;color:var(--ink)}
.burger:hover{background:rgba(30,61,58,.08)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;
  font-size:15px;font-weight:600;line-height:1.2;
  border-radius:999px;
  transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:var(--accent);color:#fff;
  box-shadow:0 6px 16px -10px rgba(228,105,60,.9);
}
.btn-primary:hover{background:var(--accent-deep);color:#fff;transform:translateY(-1px);box-shadow:0 12px 24px -12px rgba(228,105,60,.85)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{
  background:transparent;color:var(--ink);
  border:1.5px solid var(--ink);
}
.btn-ghost:hover{background:rgba(30,61,58,.08);color:var(--ink)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{padding:10px 20px;font-size:13.5px}
.btn:disabled,.btn[disabled]{opacity:.45;pointer-events:none}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:600;color:var(--ink);
  border-bottom:2px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.link-arrow svg{transition:transform .22s var(--ease)}
.link-arrow:hover{color:var(--ink-light);border-bottom-color:var(--accent)}
.link-arrow:hover svg{transform:translateX(4px)}

/* 通用文字 */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.18em;
  color:var(--ink-light);text-transform:uppercase;
  margin-bottom:18px;
}
.eyebrow::before{content:"";width:8px;height:2px;background:var(--accent);border-radius:2px}
h1{font-size:clamp(2.1rem,4.6vw,3.9rem);font-weight:800;letter-spacing:-.01em;line-height:1.15;color:var(--ink)}
h2{font-size:clamp(1.5rem,2.6vw,2.2rem);font-weight:700;line-height:1.3;color:var(--ink);letter-spacing:-.01em}
h3{font-size:1.25rem;font-weight:700;line-height:1.45;color:var(--ink)}
.lead{font-size:17px;line-height:1.9;color:var(--muted)}
.small{font-size:13px;line-height:1.7;color:var(--muted)}
.badge{
  display:inline-block;
  padding:4px 10px;
  font-size:12px;font-weight:600;line-height:1.6;
  color:var(--ink);
  background:var(--moss-soft);
  border-radius:6px;
}
.num{font-variant-numeric:tabular-nums}

/* ============ 页首 ============ */
.page-hero{padding-top:132px}
.hero-grid{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:56px;
  align-items:center;
}
.hero-copy h1{margin-bottom:22px}
.hero-copy h1 .hl{position:relative;white-space:nowrap}
.hero-copy h1 .hl::after{
  content:"";position:absolute;left:0;right:0;bottom:.08em;height:8px;
  background:rgba(228,105,60,.22);border-radius:6px;z-index:-1;
}
.hero-sub{font-size:19px;font-weight:600;color:var(--ink);line-height:1.7;margin-bottom:16px}
.hero-lead{max-width:58ch;color:var(--muted)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-figure{
  position:relative;
  border-radius:var(--r-img);
  overflow:hidden;
  box-shadow:var(--sh-2);
  aspect-ratio:16/9;
  background:var(--paper-2);
}
.hero-figure img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.hero-figure:hover img{transform:scale(1.03)}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:10px;
  margin-top:26px;
}

/* ============ 粘性标题 + 说明 ============ */
.sec-head{
  display:grid;
  grid-template-columns:4fr 8fr;
  gap:56px;
  margin-bottom:56px;
}
.sec-head .side{position:sticky;top:120px;align-self:start}
.sec-head .side p{margin-top:16px;color:var(--muted)}
.sec-head .main h2{margin-bottom:14px}
.sec-head .main p{color:var(--muted);max-width:64ch}
.sec-head--plain{grid-template-columns:1fr;gap:16px;margin-bottom:44px}
.sec-head--plain .main p{max-width:70ch}

/* ============ 时间线步骤流 ============ */
.timeline{position:relative;padding-left:64px;margin-top:8px}
.timeline::before{
  content:"";position:absolute;left:21px;top:12px;bottom:12px;width:2px;
  background:linear-gradient(180deg,var(--moss),rgba(143,179,171,.25));
  border-radius:2px;
}
.tl-item{position:relative;margin-bottom:26px}
.tl-item:last-child{margin-bottom:0}
.tl-node{
  position:absolute;left:-64px;top:2px;
  display:flex;align-items:center;justify-content:center;
  width:44px;height:44px;
  background:var(--card);
  border:1.5px solid var(--line-2);
  border-radius:999px;
  color:var(--ink);
  font-size:14px;font-weight:800;
  font-variant-numeric:tabular-nums;
  box-shadow:var(--sh-1);
}
.tl-node::after{
  content:"";position:absolute;left:50%;top:50%;
  width:10px;height:10px;border-radius:999px;background:var(--accent);
  transform:translate(-50%,-50%) scale(0);
  transition:transform .3s var(--ease);
}
.tl-item:hover .tl-node::after{transform:translate(-50%,-50%) scale(1)}
.tl-item:hover .tl-node{color:transparent}
.tl-card{
  background:var(--card);
  border:1px solid var(--line-2);
  border-radius:var(--r-card);
  padding:26px 28px;
  box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line)}
.tl-card h3{margin-bottom:10px}
.tl-card p{color:var(--muted);font-size:15.5px}
.tl-tag{
  display:inline-block;margin-bottom:12px;
  font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--ink-light);
}

/* ============ 适配一览数据卡 ============ */
.stat-row{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
  margin-bottom:44px;
}
.stat-card{
  background:var(--card);
  border:1px solid var(--line-2);
  border-radius:var(--r-card);
  padding:26px 26px 24px;
  box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.stat-num{
  font-size:28px;font-weight:800;color:var(--ink);
  font-variant-numeric:tabular-nums;line-height:1.2;margin-bottom:6px;
}
.stat-num span{font-size:14px;font-weight:600;color:var(--moss);margin-left:4px}
.stat-card p{font-size:14px;color:var(--muted);line-height:1.75}

.check-list{
  display:grid;grid-template-columns:repeat(2,1fr);gap:0 40px;
  border-top:1px dashed var(--line-dash);
}
.check-item{
  display:flex;gap:14px;
  padding:20px 0;
  border-bottom:1px dashed var(--line-dash);
}
.check-icon{
  flex-shrink:0;width:24px;height:24px;margin-top:3px;
  color:var(--ink-light);
}
.check-item h3{font-size:16px;margin-bottom:6px}
.check-item p{font-size:14.5px;color:var(--muted);line-height:1.75}

/* ============ 排查卡片 ============ */
.prob-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.prob-card{
  background:var(--card);
  border:1px solid var(--line-2);
  border-radius:var(--r-card);
  padding:28px 26px;
  box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.prob-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.prob-card .badge{margin-bottom:14px}
.prob-card h3{font-size:17px;margin-bottom:10px}
.prob-card p{font-size:14.5px;color:var(--muted)}
.prob-card .fix{
  margin-top:16px;padding-top:14px;border-top:1px dashed var(--line-dash);
  font-size:14px;color:var(--ink);font-weight:600;
}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:56px}
.faq-side{position:sticky;top:120px;align-self:start}
.faq-side p{margin-top:16px;color:var(--muted)}
.faq-list{border-top:1px solid var(--line-2)}
.faq-item{border-bottom:1px solid var(--line-2)}
.faq-q{
  display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  width:100%;padding:22px 0 22px 0;
  text-align:left;
  font-size:17px;font-weight:600;color:var(--text);line-height:1.6;
  position:relative;
  transition:color .2s var(--ease),padding-left .22s var(--ease);
}
.faq-q::before{
  content:"";position:absolute;left:0;top:24px;bottom:24px;width:3px;
  background:var(--accent);border-radius:2px;
  opacity:0;transition:opacity .22s var(--ease);
}
.faq-q:hover{color:var(--ink)}
.faq-item.is-open .faq-q{color:var(--ink);padding-left:16px}
.faq-item.is-open .faq-q::before{opacity:1}
.faq-q .chev{flex-shrink:0;margin-top:4px;color:var(--moss);transition:transform .28s var(--ease),color .22s var(--ease)}
.faq-item.is-open .chev{transform:rotate(180deg);color:var(--accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease)}
.faq-a-inner{padding:0 0 24px;font-size:15px;line-height:1.85;color:var(--muted);max-width:64ch}
.faq-item.is-open .faq-a-inner{padding-left:16px}

/* ============ 交叉链接 ============ */
.cross-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cross-card{
  display:flex;flex-direction:column;gap:10px;
  background:var(--card);
  border:1px solid var(--line-2);
  border-radius:var(--r-card);
  padding:26px;
  box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.cross-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line);color:inherit}
.cross-card h3{font-size:17px}
.cross-card p{font-size:14px;color:var(--muted);line-height:1.75}
.cross-card .link-arrow{margin-top:6px;font-size:14px}

/* ============ CTA 带 ============ */
.cta-band{
  background:var(--ink-deep);
  border-radius:24px;
  padding:clamp(36px,5vw,60px);
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  color:var(--inverse);
}
.cta-band h2{color:var(--inverse);font-size:clamp(1.35rem,2.2vw,1.85rem);max-width:22ch}
.cta-band p{margin-top:12px;color:rgba(243,241,236,.72);font-size:15px;max-width:46ch}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:90;
  display:inline-flex;align-items:center;gap:8px;
  height:52px;padding:0 24px;
  background:var(--ink);color:var(--inverse);
  font-size:14.5px;font-weight:600;
  border-radius:999px;
  box-shadow:0 12px 30px -12px rgba(20,32,30,.55);
  opacity:0;transform:translateY(10px);pointer-events:none;
  transition:opacity .3s var(--ease),transform .3s var(--ease),background .22s var(--ease);
}
.float-cta.is-show{opacity:1;transform:translateY(0);pointer-events:auto}
.float-cta:hover{background:var(--ink-light);color:var(--inverse)}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-deep);color:var(--inverse);padding:clamp(56px,7vw,88px) 0 0;margin-top:clamp(72px,9vw,132px)}
.foot-grid{
  display:grid;grid-template-columns:4fr 2.4fr 2.8fr 2.8fr;gap:40px;
  padding-bottom:52px;
}
.foot-logo{display:inline-block;font-size:16px;font-weight:800;color:var(--inverse);margin-bottom:16px}
.foot-logo .dot{color:var(--accent);margin:0 2px}
.foot-brand p{font-size:14px;line-height:1.8;color:rgba(243,241,236,.66);max-width:34ch}
.foot-col h4{font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--moss);margin-bottom:18px}
.foot-col ul li{margin-bottom:11px}
.foot-col a{
  display:inline-block;font-size:14px;color:rgba(243,241,236,.78);
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.foot-col a:hover{color:var(--moss);transform:translateX(2px)}
.foot-col p{font-size:14px;color:rgba(243,241,236,.66);line-height:1.9}
.foot-bar{
  border-top:1px solid rgba(243,241,236,.12);
  padding:20px 0;
  font-size:12px;color:rgba(243,241,236,.55);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
}

/* ============ 移动端全屏菜单 ============ */
.mobile-panel{
  position:fixed;inset:0;z-index:300;
  background:var(--paper);
  padding:26px 24px 40px;
  display:flex;flex-direction:column;
  opacity:0;visibility:hidden;
  transition:opacity .24s var(--ease),visibility .24s var(--ease);
}
.mobile-panel.is-open{opacity:1;visibility:visible}
.panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:32px}
.panel-head .logo{font-size:15px}
.panel-close{width:42px;height:42px;display:flex;align-items:center;justify-content:center;border-radius:999px;color:var(--ink)}
.panel-close:hover{background:rgba(30,61,58,.08)}
.panel-nav{display:flex;flex-direction:column}
.panel-nav a{
  display:block;
  font-size:20px;font-weight:600;line-height:56px;color:var(--ink);
  border-bottom:1px dashed var(--line-dash);
}
.panel-nav a.is-active{color:var(--ink-light)}
.panel-nav a.is-active::after{content:"当前";margin-left:10px;font-size:12px;font-weight:700;color:var(--accent);vertical-align:middle}
.panel-cta{margin-top:auto;padding-top:32px}
.panel-cta .btn{width:100%}

/* ============ 进入动画 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .42s var(--ease),transform .42s var(--ease)}
.reveal.is-in{opacity:1;transform:translateY(0)}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .dock{max-width:100%;gap:12px}
  .dock-nav a{padding:8px 9px;font-size:13.5px}
}
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-figure{order:-1}
  .sec-head{grid-template-columns:1fr;gap:24px}
  .sec-head .side{position:static}
  .faq-grid{grid-template-columns:1fr;gap:32px}
  .faq-side{position:static}
  .stat-row{grid-template-columns:repeat(3,1fr);gap:18px}
  .prob-grid{grid-template-columns:repeat(2,1fr)}
  .cross-grid{grid-template-columns:repeat(3,1fr);gap:18px}
  .foot-grid{grid-template-columns:2fr 1fr 1fr;gap:32px}
  .foot-brand{grid-column:1/-1}
  .dock-nav{display:none}
  .burger{display:inline-flex}
}
@media (max-width:768px){
  body{font-size:16px;padding-bottom:150px}
  .container{padding:0 20px}
  .page-hero{padding-top:104px}
  .dock-wrap{
    top:auto;bottom:0;padding:0 12px 12px;
    justify-content:center;
  }
  .dock-wrap.is-scrolled{top:auto}
  .dock{
    height:60px;padding:0 8px 0 18px;gap:10px;
    border-radius:999px;
    box-shadow:0 12px 30px -12px rgba(20,32,30,.4);
  }
  .dock-wrap.is-scrolled .dock{height:60px}
  .logo{font-size:14px}
  .dock-actions{margin-left:auto}
  .dock-actions .btn-sm{padding:9px 14px;font-size:12.5px}
  .icon-btn{display:none}
  .hero-sub{font-size:17px}
  .hero-actions{gap:10px}
  .hero-actions .btn{flex:1 1 auto;justify-content:center}
  .stat-row{grid-template-columns:1fr 1fr}
  .check-list{grid-template-columns:1fr}
  .prob-grid{grid-template-columns:1fr}
  .cross-grid{grid-template-columns:1fr}
  .timeline{padding-left:0}
  .timeline::before{display:none}
  .tl-node{
    position:static;display:inline-flex;margin-bottom:14px;
    width:auto;height:auto;padding:5px 14px;
    background:var(--moss-soft);border:none;border-radius:999px;
    font-size:12.5px;letter-spacing:.1em;color:var(--ink);
    box-shadow:none;
  }
  .tl-node::after{display:none}
  .tl-item:hover .tl-node{color:var(--ink)}
  .tl-card{padding:22px 20px}
  .cta-band{flex-direction:column;align-items:flex-start;gap:24px;border-radius:20px}
  .cta-band .btn{width:100%}
  .float-cta{
    right:16px;left:16px;bottom:84px;width:calc(100% - 32px);
    justify-content:center;height:48px;padding:0 18px;
  }
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
  .foot-bar{flex-direction:column;gap:6px}
}
@media (max-width:520px){
  .stat-row{grid-template-columns:1fr}
  .hero-meta .badge{font-size:11.5px}
  .foot-grid{grid-template-columns:1fr}
  h1{font-size:clamp(1.85rem,7.4vw,2.4rem)}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category3 */
:root{
  --ink:#1E3D3A;
  --ink-deep:#10201E;
  --ink-soft:#2F6A62;
  --orange:#E4693C;
  --orange-deep:#C9552C;
  --mist:#8FB3AB;
  --paper:#F6F4EF;
  --paper-2:#ECEAE3;
  --paper-3:#F1EEE7;
  --card:#FFFFFF;
  --line:#DAD6CC;
  --line-2:#E4E0D6;
  --line-dash:#DDD8CD;
  --text:#14201E;
  --muted:#5A6663;
  --inv:#F3F1EC;
  --r-card:18px;
  --r-img:14px;
  --r-input:12px;
  --shadow-1:0 1px 2px rgba(20,32,30,.06);
  --shadow-2:0 14px 34px -14px rgba(20,32,30,.18);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  font-weight:400;
  color:var(--text);
  background:var(--paper);
  padding-bottom:96px;
  -webkit-font-smoothing:antialiased;
}
body.lock{overflow:hidden;}
img{max-width:100%;display:block;border:0;}
a{color:var(--ink-soft);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--ink);}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,textarea,select{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--orange);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(228,105,60,.22);color:var(--ink-deep);}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:clamp(72px,9vw,132px) 0;}
.section-tight{padding:clamp(48px,6vw,80px) 0;}

/* ---------- Dock 导航 ---------- */
.dock-wrap{
  position:fixed;top:20px;left:0;right:0;z-index:200;
  display:flex;justify-content:center;
  padding:0 24px;
  transition:top .24s var(--ease);
  pointer-events:none;
}
.dock{
  pointer-events:auto;
  width:100%;max-width:1120px;height:60px;
  display:flex;align-items:center;gap:14px;
  padding:0 10px 0 22px;
  background:rgba(246,244,239,.9);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid var(--line);
  border-radius:999px;
  box-shadow:var(--shadow-1);
  transition:height .24s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease);
}
.dock-wrap.shrink{top:12px;}
.dock-wrap.shrink .dock{height:52px;box-shadow:var(--shadow-2);background:rgba(246,244,239,.96);}
.logo{
  display:inline-flex;align-items:baseline;gap:2px;
  font-size:16px;font-weight:800;letter-spacing:-.01em;
  color:var(--ink);white-space:nowrap;flex:0 0 auto;
}
.logo .dot{color:var(--orange);font-weight:800;padding:0 1px;}
.logo:hover{color:var(--ink-deep);}
.dock-nav{
  display:flex;align-items:center;gap:4px;
  margin-left:auto;flex:1 1 auto;justify-content:flex-end;
}
.dock-nav a{
  position:relative;
  display:inline-flex;align-items:center;
  padding:8px 13px;border-radius:999px;
  font-size:14px;font-weight:500;color:var(--muted);
  white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.dock-nav a::after{
  content:"";position:absolute;left:13px;right:13px;bottom:4px;height:2px;
  background:var(--orange);border-radius:2px;
  transform:scaleX(0);transform-origin:center;
  transition:transform .22s var(--ease);
}
.dock-nav a:hover{color:var(--ink);background:rgba(30,61,58,.06);}
.dock-nav a.active{color:var(--ink);font-weight:600;}
.dock-nav a.active::after{transform:scaleX(1);}
.dock-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto;}
.icon-btn{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:999px;color:var(--ink);
  border:1px solid transparent;
  transition:background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.icon-btn:hover{background:rgba(30,61,58,.08);border-color:var(--line-2);}
.burger{display:none;width:38px;height:38px;align-items:center;justify-content:center;border-radius:999px;color:var(--ink);border:1px solid var(--line-2);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:999px;
  font-size:15px;font-weight:600;line-height:1.2;
  border:1.5px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),transform .18s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 6px 16px -8px rgba(228,105,60,.7);}
.btn-primary:hover{background:var(--orange-deep);color:#fff;transform:translateY(-1px);box-shadow:0 14px 28px -12px rgba(201,85,44,.72);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 10px -6px rgba(201,85,44,.6);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:rgba(30,61,58,.08);color:var(--ink);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-line{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-line:hover{background:rgba(30,61,58,.06);border-color:var(--ink);color:var(--ink);}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;box-shadow:none;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:600;color:var(--ink);
  padding-bottom:2px;border-bottom:2px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.link-arrow svg{transition:transform .2s var(--ease);}
.link-arrow:hover{color:var(--ink-soft);border-color:var(--orange);}
.link-arrow:hover svg{transform:translateX(4px);}

/* ---------- 共用文本元素 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.18em;
  color:var(--ink-soft);text-transform:uppercase;
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:8px;height:2px;background:var(--orange);border-radius:2px;}
h1,.h1{
  font-size:clamp(2.1rem,4.6vw,3.9rem);
  font-weight:800;line-height:1.15;letter-spacing:-.01em;
  color:var(--ink-deep);
}
h2,.h2{
  font-size:clamp(1.5rem,2.6vw,2.2rem);
  font-weight:700;line-height:1.25;letter-spacing:-.01em;
  color:var(--ink-deep);
}
h3,.h3{font-size:1.25rem;font-weight:700;line-height:1.4;color:var(--ink-deep);}
.lead{font-size:clamp(1rem,1.2vw,1.12rem);line-height:1.8;color:var(--muted);}
.small{font-size:13px;line-height:1.7;color:var(--muted);}
.num{font-variant-numeric:tabular-nums;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  background:#E3EDEA;color:var(--ink);
  font-size:12px;font-weight:600;line-height:1.6;
  padding:4px 10px;border-radius:6px;
}

/* ---------- 页首 ---------- */
.page-head{padding:clamp(112px,14vw,168px) 0 clamp(40px,5vw,64px);}
.head-grid{display:grid;grid-template-columns:7fr 5fr;gap:clamp(24px,4vw,56px);align-items:center;}
.page-head h1{margin-bottom:20px;}
.page-head .lead{max-width:56ch;}
.head-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.head-figure{
  position:relative;border-radius:var(--r-img);overflow:hidden;
  box-shadow:var(--shadow-2);background:var(--paper-2);
}
.head-figure img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .4s var(--ease);}
.head-figure:hover img{transform:scale(1.03);}

/* ---------- 数字带 ---------- */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line-2);
  border:1px solid var(--line-2);
  border-radius:var(--r-card);
  overflow:hidden;
}
.stat{background:var(--card);padding:26px 22px;display:flex;flex-direction:column;gap:6px;}
.stat-num{font-size:28px;font-weight:800;line-height:1.1;color:var(--ink);font-variant-numeric:tabular-nums;letter-spacing:-.01em;}
.stat-label{font-size:12px;line-height:1.7;color:var(--muted);letter-spacing:.02em;}

/* ---------- 对比表 ---------- */
.cmp{
  background:var(--card);
  border:1px solid var(--line-2);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
}
.cmp-row{
  display:grid;
  grid-template-columns:1.05fr 1.35fr 1.35fr 1fr;
  align-items:stretch;
  border-bottom:1px solid var(--line-2);
  transition:background .2s var(--ease);
}
.cmp-row:last-child{border-bottom:0;}
.cmp-row > div{padding:18px 20px;font-size:14.5px;line-height:1.7;color:var(--text);}
.cmp-row > div + div{border-left:1px solid var(--line-2);}
.cmp-head{background:var(--paper-2);}
.cmp-head > div{
  font-size:12.5px;font-weight:700;letter-spacing:.1em;
  color:var(--ink);padding:14px 20px;
}
.cmp-body .cmp-row:hover{background:var(--paper-3);}
.cmp-key{font-weight:700;color:var(--ink);}
.cmp-pick{color:var(--ink-soft);font-weight:600;}
.cmp-note{display:flex;align-items:flex-start;gap:10px;margin-top:16px;}

/* ---------- 说明段落 ---------- */
.explain{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,3.4vw,44px);margin-top:clamp(36px,4vw,56px);}
.explain-block{padding:26px 28px;background:var(--card);border:1px solid var(--line-2);border-radius:var(--r-card);box-shadow:var(--shadow-1);}
.explain-block h3{margin-bottom:12px;}
.explain-block p{font-size:15.5px;line-height:1.85;color:var(--muted);}
.explain-block p + p{margin-top:12px;}

/* ---------- 提示卡 ---------- */
.notice{
  display:flex;gap:16px;align-items:flex-start;
  margin-top:clamp(24px,3vw,36px);
  padding:22px 24px;
  background:#E3EDEA;
  border-radius:var(--r-card);
  border-left:3px solid var(--orange);
}
.notice svg{flex:0 0 auto;color:var(--ink);margin-top:3px;}
.notice h3{font-size:1rem;margin-bottom:4px;}
.notice p{font-size:14.5px;line-height:1.8;color:var(--ink-soft);}

/* ---------- 选择建议 ---------- */
.pick-grid{display:grid;grid-template-columns:1fr 2fr;gap:clamp(28px,4vw,64px);align-items:start;}
.pick-side{position:sticky;top:110px;}
.pick-side h2{margin-bottom:14px;}
.pick-list{border-top:1px solid var(--line-2);}
.pick-item{
  display:grid;grid-template-columns:auto 1fr;gap:22px;
  padding:24px 4px;
  border-bottom:1px dashed var(--line-dash);
}
.pick-no{
  font-size:40px;font-weight:800;line-height:1;letter-spacing:-.02em;
  color:transparent;-webkit-text-stroke:1px var(--mist);
  font-variant-numeric:tabular-nums;
}
@supports not ((-webkit-text-stroke:1px #000)){
  .pick-no{color:var(--mist);}
}
.pick-item h3{margin-bottom:6px;}
.pick-item p{font-size:15px;line-height:1.8;color:var(--muted);}

/* ---------- 其他分类 ---------- */
.cross-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap;}
.cross-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.cross-card{
  display:flex;flex-direction:column;gap:8px;
  padding:24px 24px 22px;
  background:var(--card);
  border:1px solid var(--line-2);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.cross-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--line);color:var(--ink);}
.cross-card h3{font-size:1.1rem;}
.cross-card p{font-size:14px;line-height:1.75;color:var(--muted);}
.cross-card .link-arrow{margin-top:6px;font-size:14px;}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--ink-deep);
  border-radius:24px;
  padding:clamp(36px,5vw,60px) clamp(24px,4vw,56px);
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band h2{color:var(--inv);max-width:24ch;font-size:clamp(1.35rem,2.4vw,2rem);}
.cta-band p{color:rgba(243,241,236,.72);font-size:14.5px;margin-top:10px;max-width:46ch;}

/* ---------- 页脚 ---------- */
footer{background:var(--ink-deep);color:var(--inv);margin-top:clamp(72px,9vw,132px);}
.foot-main{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:clamp(24px,3vw,48px);
  padding:clamp(48px,6vw,72px) 0 clamp(32px,4vw,48px);
}
.foot-brand .logo{color:var(--inv);font-size:17px;margin-bottom:14px;}
.foot-brand .logo .dot{color:var(--orange);}
.foot-brand p{font-size:14px;line-height:1.85;color:rgba(243,241,236,.62);max-width:34ch;}
.foot-col h4{font-size:13px;font-weight:700;letter-spacing:.14em;color:rgba(243,241,236,.5);margin-bottom:16px;text-transform:uppercase;}
.foot-col li{margin-bottom:10px;}
.foot-col a,.foot-col span{font-size:14px;color:rgba(243,241,236,.82);display:inline-block;transition:color .2s var(--ease),transform .2s var(--ease);}
.foot-col a:hover{color:var(--mist);transform:translateX(2px);}
.foot-bottom{
  border-top:1px solid rgba(243,241,236,.12);
  padding:18px 0 24px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:rgba(243,241,236,.55);
  line-height:1.7;
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:300;
  display:inline-flex;align-items:center;gap:8px;
  height:52px;padding:0 24px;border-radius:999px;
  background:var(--ink);color:var(--inv);
  font-size:14.5px;font-weight:600;
  box-shadow:0 16px 36px -16px rgba(20,32,30,.6);
  opacity:0;pointer-events:none;transform:translateY(8px);
  transition:opacity .28s var(--ease),transform .28s var(--ease),background .2s var(--ease);
}
.float-cta.show{opacity:1;pointer-events:auto;transform:translateY(0);}
.float-cta:hover{background:var(--ink-soft);color:#fff;}

/* ---------- 移动全屏面板 ---------- */
.mobile-panel{
  position:fixed;inset:0;z-index:400;
  background:var(--paper);
  padding:24px 24px calc(32px + env(safe-area-inset-bottom));
  display:flex;flex-direction:column;
  transform:translateY(100%);
  visibility:hidden;
  transition:transform .32s var(--ease),visibility .32s var(--ease);
}
.mobile-panel.open{transform:translateY(0);visibility:visible;}
.mp-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:32px;}
.mp-close{
  width:42px;height:42px;border-radius:999px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--ink);
}
.mp-close:hover{background:rgba(30,61,58,.08);}
.mp-nav{display:flex;flex-direction:column;}
.mp-nav a{
  font-size:20px;line-height:56px;color:var(--ink);
  border-bottom:1px dashed var(--line-dash);
  display:flex;align-items:center;justify-content:space-between;
}
.mp-nav a.active{color:var(--orange);}
.mp-foot{margin-top:auto;display:flex;flex-direction:column;gap:14px;}

/* ---------- 进入动画 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .42s var(--ease),transform .42s var(--ease);}
.reveal.in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .head-grid{grid-template-columns:1fr;}
  .head-figure{order:-1;max-width:520px;}
  .pick-grid{grid-template-columns:1fr;}
  .pick-side{position:static;}
  .stats{grid-template-columns:repeat(2,1fr);}
  .cross-grid{grid-template-columns:1fr 1fr;}
  .foot-main{grid-template-columns:1fr 1fr;}
}
@media (max-width:900px){
  .dock-nav a{padding:8px 9px;font-size:13px;}
  .logo{font-size:15px;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .dock-wrap{
    top:auto;bottom:0;
    padding:0 12px calc(12px + env(safe-area-inset-bottom));
    transition:none;
  }
  .dock-wrap.shrink{top:auto;}
  .dock{height:60px;border-radius:22px;padding:0 8px 0 16px;gap:8px;}
  .dock-wrap.shrink .dock{height:60px;}
  .dock-nav{display:none;}
  .dock-actions .icon-btn{display:none;}
  .burger{display:inline-flex;}
  .logo{font-size:14.5px;}
  .page-head{padding-top:88px;}
  .explain{grid-template-columns:1fr;}
  .cmp-head{display:none;}
  .cmp-row{grid-template-columns:1fr;border-bottom:1px solid var(--line-2);}
  .cmp-row > div + div{border-left:0;}
  .cmp-row > div{padding:10px 18px;font-size:14px;}
  .cmp-row > div:first-child{padding-top:18px;font-weight:700;color:var(--ink);font-size:15px;}
  .cmp-row > div:last-child{padding-bottom:18px;}
  .cmp-row > div[data-label]::before{
    content:attr(data-label);display:block;
    font-size:11px;letter-spacing:.1em;color:var(--muted);
    margin-bottom:2px;font-weight:600;
  }
  .cross-grid{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;}
  .foot-main{grid-template-columns:1fr;gap:32px;}
  .float-cta{
    right:16px;left:16px;bottom:calc(84px + env(safe-area-inset-bottom));
    justify-content:center;width:auto;
  }
  .pick-no{font-size:32px;}
}
@media (max-width:480px){
  .stats{grid-template-columns:1fr 1fr;}
  .stat{padding:20px 16px;}
  .stat-num{font-size:24px;}
  .head-meta{gap:8px;}
  .dock .btn-sm{padding:9px 15px;font-size:13px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .reveal{transform:none;}
}

/* roulang page: category4 */
:root{
  --ink:#1E3D3A;
  --ink-deep:#10201E;
  --ink-soft:#2F6A62;
  --accent:#E4693C;
  --accent-dark:#C9552C;
  --mist:#8FB3AB;
  --mist-soft:#E3EDEA;
  --paper:#F6F4EF;
  --paper-2:#ECEAE3;
  --card:#FFFFFF;
  --line:#DAD6CC;
  --line-2:#E4E0D6;
  --text:#14201E;
  --muted:#5A6663;
  --white-text:#F3F1EC;
  --r-card:18px;
  --r-img:14px;
  --r-input:12px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(20,32,30,.06);
  --shadow-2:0 14px 34px -14px rgba(20,32,30,.18);
  --container:1240px;
  --gutter:24px;
  --section:clamp(72px,9vw,132px);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  font-weight:400;
  color:var(--text);
  background:var(--paper);
  padding-bottom:96px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--ink-soft);text-decoration:none;transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease)}
a:hover{color:var(--ink)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure{margin:0}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
summary{cursor:pointer;list-style:none}
summary::-webkit-details-marker{display:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
::selection{background:rgba(228,105,60,.22);color:var(--ink-deep)}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 var(--gutter)}

/* ---------- 浮动 Dock 导航 ---------- */
.dock-wrap{
  position:fixed;top:20px;left:0;right:0;z-index:60;
  display:flex;justify-content:center;
  padding:0 var(--gutter);
  pointer-events:none;
  transition:top .24s var(--ease);
}
.dock{
  pointer-events:auto;
  width:100%;max-width:760px;height:60px;
  display:flex;align-items:center;gap:16px;
  padding:0 10px 0 20px;
  border-radius:var(--r-pill);
  background:rgba(246,244,239,.9);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:height .24s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease);
}
.dock-wrap.is-scrolled{top:12px}
.dock-wrap.is-scrolled .dock{height:52px;box-shadow:0 10px 26px -16px rgba(20,32,30,.3)}
.logo{
  display:inline-flex;align-items:center;gap:2px;
  font-size:15px;font-weight:800;letter-spacing:-.01em;
  color:var(--ink);white-space:nowrap;
}
.logo .dot{color:var(--accent);margin:0 1px;font-weight:800}
.dock-nav{display:flex;align-items:center;gap:2px;margin:0 auto}
.dock-nav a{
  position:relative;
  display:block;
  padding:7px 9px;
  font-size:13.5px;font-weight:500;
  color:var(--muted);
  border-radius:var(--r-pill);
  white-space:nowrap;
}
.dock-nav a::after{
  content:"";position:absolute;left:9px;right:9px;bottom:2px;height:2px;
  background:var(--accent);border-radius:2px;
  transform:scaleX(0);transform-origin:left center;
  transition:transform .22s var(--ease);
}
.dock-nav a:hover{color:var(--ink);background:rgba(30,61,58,.05)}
.dock-nav a.is-active{color:var(--ink);font-weight:700}
.dock-nav a.is-active::after,.dock-nav a:hover::after{transform:scaleX(1)}
.dock-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.icon-btn{
  width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--r-pill);color:var(--ink);
  border:1px solid transparent;
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.icon-btn:hover{background:rgba(30,61,58,.08);border-color:var(--line)}
.icon-btn:active{transform:translateY(1px)}
.burger{
  display:none;width:38px;height:38px;align-items:center;justify-content:center;
  border-radius:var(--r-pill);border:1px solid var(--line);color:var(--ink);
  background:rgba(255,255,255,.6);
}
.burger:hover{background:#fff}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1.5px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 20px -12px rgba(228,105,60,.9)}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 14px 26px -12px rgba(228,105,60,.75)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:rgba(30,61,58,.08);color:var(--ink);transform:translateY(-1px)}
.btn-sm{padding:9px 18px;font-size:13.5px}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--ink);font-size:14.5px}
.link-arrow svg{transition:transform .22s var(--ease)}
.link-arrow:hover svg{transform:translateX(4px)}
.link-arrow:hover{box-shadow:inset 0 -2px 0 var(--accent)}

/* ---------- 通用板块 ---------- */
main{padding-top:118px}
.section{padding:var(--section) 0}
.section-tight{padding:clamp(48px,6vw,84px) 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.18em;
  color:var(--ink-soft);text-transform:uppercase;
}
.eyebrow::before{content:"";width:8px;height:2px;background:var(--accent);border-radius:2px}
.badge{
  display:inline-block;padding:4px 10px;border-radius:6px;
  background:var(--mist-soft);color:var(--ink);
  font-size:12px;font-weight:600;line-height:1.6;
}
.section-head{max-width:720px;margin-bottom:clamp(32px,4vw,52px)}
.section-head h2{
  font-size:clamp(1.5rem,2.6vw,2.2rem);font-weight:700;line-height:1.3;
  color:var(--ink);letter-spacing:-.01em;margin:14px 0 12px;
}
.section-head p{color:var(--muted);font-size:15.5px;line-height:1.85}
.hr-soft{height:1px;background:var(--line-2);border:0;margin:0}

/* ---------- 页首 ---------- */
.page-head{
  position:relative;overflow:hidden;
  padding:clamp(48px,6vw,80px) 0 clamp(40px,5vw,64px);
  background:var(--paper);
}
.page-head::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center right;
  opacity:.13;filter:saturate(.7);
  pointer-events:none;
}
.page-head::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,var(--paper) 26%,rgba(246,244,239,.72) 58%,rgba(246,244,239,.35) 100%);
  pointer-events:none;
}
.page-head .container{position:relative;z-index:2}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);margin-bottom:22px;
}
.crumb .sep{color:var(--mist)}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--ink)}
.crumb .cur{color:var(--ink);font-weight:600}
.page-head h1{
  font-size:clamp(2rem,4.2vw,3.4rem);
  font-weight:800;line-height:1.15;letter-spacing:-.01em;
  color:var(--ink);max-width:15ch;
}
.page-head h1 em{
  font-style:normal;color:var(--ink-soft);position:relative;
  display:inline-block;
}
.page-head h1 em::after{
  content:"";position:absolute;left:0;right:0;bottom:6px;height:2px;
  background:var(--accent);opacity:.75;
  transform:scaleX(.92);transform-origin:left;
}
.page-head .lead{
  margin-top:22px;max-width:620px;
  font-size:16.5px;line-height:1.9;color:var(--muted);
}
.head-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.head-meta .badge{background:#fff;border:1px solid var(--line-2);color:var(--ink-soft)}

/* ---------- 2×2 图文卡 ---------- */
.card-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.topic-card{
  background:var(--card);
  border:1px solid var(--line-2);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  display:flex;flex-direction:column;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.topic-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--line)}
.card-media{
  position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--paper-2);
}
.card-media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .4s var(--ease);
}
.topic-card:hover .card-media img{transform:scale(1.03)}
.card-media .num{
  position:absolute;left:16px;top:16px;
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:var(--r-pill);
  background:rgba(246,244,239,.92);
  color:var(--ink);font-size:13px;font-weight:800;
  font-variant-numeric:tabular-nums;
  border:1px solid var(--line);
}
.card-body{padding:24px 26px 28px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-body h3{
  font-size:1.25rem;font-weight:700;line-height:1.45;color:var(--ink);
}
.card-body p{color:var(--muted);font-size:15px;line-height:1.85}
.card-list{display:flex;flex-direction:column;gap:8px;margin-top:auto;padding-top:8px}
.card-list li{
  position:relative;padding-left:18px;
  font-size:14px;color:var(--ink);line-height:1.75;
}
.card-list li::before{
  content:"";position:absolute;left:0;top:.62em;
  width:6px;height:6px;border-radius:50%;background:var(--mist);
}
.topic-card:hover .card-list li::before{background:var(--accent)}

/* ---------- 核对清单（列表行） ---------- */
.checklist{
  background:var(--card);
  border:1px solid var(--line-2);
  border-radius:var(--r-card);
  padding:8px 26px;
  box-shadow:var(--shadow-1);
}
.check-row{
  display:grid;grid-template-columns:64px minmax(0,1fr) auto;
  gap:20px;align-items:center;
  padding:22px 0;
  border-bottom:1px dashed #DDD8CD;
  transition:background .2s var(--ease);
}
.check-row:last-child{border-bottom:0}
.check-row:hover{background:#F1EEE7}
.check-row .idx{
  font-size:22px;font-weight:800;color:var(--mist);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.check-row h3{font-size:16.5px;font-weight:700;color:var(--ink);margin-bottom:4px}
.check-row p{font-size:14.5px;color:var(--muted);line-height:1.75}
.check-row .tag{
  font-size:12px;font-weight:600;color:var(--ink-soft);
  background:var(--mist-soft);padding:5px 12px;border-radius:var(--r-pill);
  white-space:nowrap;
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px}
.faq-item{
  background:var(--card);
  border:1px solid var(--line-2);
  border-radius:14px;
  padding:0 24px;
  margin-bottom:14px;
  box-shadow:var(--shadow-1);
  transition:box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.faq-item:hover{box-shadow:var(--shadow-2);border-color:var(--line)}
.faq-item summary{
  position:relative;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 0 20px 0;
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-item summary::before{
  content:"";position:absolute;left:-24px;top:18px;bottom:18px;width:3px;
  background:var(--accent);border-radius:3px;
  opacity:0;transition:opacity .22s var(--ease);
}
.faq-item[open] summary::before{opacity:1}
.faq-item[open] summary{color:var(--ink)}
.faq-arrow{
  flex:0 0 auto;width:20px;height:20px;color:var(--muted);
  display:inline-flex;align-items:center;justify-content:center;
  transition:transform .28s var(--ease),color .2s var(--ease);
}
.faq-item[open] .faq-arrow{transform:rotate(180deg);color:var(--accent)}
.faq-body{padding:0 0 22px;border-top:1px solid var(--line-2);padding-top:16px}
.faq-body p{font-size:15px;line-height:1.85;color:var(--muted)}

/* ---------- 交叉链接 ---------- */
.cross-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.cross-card{
  display:flex;flex-direction:column;gap:8px;
  padding:24px;border-radius:var(--r-card);
  background:var(--card);border:1px solid var(--line-2);
  box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.cross-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--line)}
.cross-card h3{font-size:16.5px;font-weight:700;color:var(--ink)}
.cross-card p{font-size:14px;color:var(--muted);line-height:1.75}
.cross-card .go{
  margin-top:8px;display:inline-flex;align-items:center;gap:6px;
  font-size:13.5px;font-weight:600;color:var(--ink-soft);
}
.cross-card .go svg{transition:transform .22s var(--ease)}
.cross-card:hover .go svg{transform:translateX(4px)}
.cross-card:hover .go{color:var(--ink)}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--ink-deep);
  border-radius:24px;
  padding:clamp(36px,5vw,60px) clamp(26px,4vw,56px);
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-40px;width:260px;height:260px;
  border-radius:50%;background:radial-gradient(circle,rgba(143,179,171,.28),transparent 68%);
  pointer-events:none;
}
.cta-band h2{
  font-size:clamp(1.4rem,2.4vw,2rem);font-weight:700;line-height:1.35;
  color:var(--white-text);max-width:22ch;letter-spacing:-.01em;
  position:relative;z-index:2;
}
.cta-band p{
  color:rgba(243,241,236,.72);font-size:15px;margin-top:10px;max-width:46ch;
  position:relative;z-index:2;
}
.cta-band .btn{position:relative;z-index:2}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-deep);color:var(--white-text);margin-top:var(--section)}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;
  padding:clamp(48px,6vw,76px) 0 40px;
}
.footer-brand .logo{color:var(--white-text);font-size:16px}
.footer-brand .logo .dot{color:var(--accent)}
.footer-brand p{
  margin-top:16px;font-size:13.5px;line-height:1.85;
  color:rgba(243,241,236,.62);max-width:34ch;
}
.footer-quote{
  margin-top:18px;padding:12px 16px;border-left:2px solid var(--mist);
  font-size:12.5px;line-height:1.7;color:rgba(243,241,236,.55);
  background:rgba(255,255,255,.04);border-radius:0 8px 8px 0;
  max-width:34ch;
}
.footer-col h4{
  font-size:12px;font-weight:700;letter-spacing:.16em;
  color:rgba(243,241,236,.5);margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{
  display:inline-block;font-size:14px;color:rgba(243,241,236,.82);
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-col a:hover{color:var(--mist);transform:translateX(2px)}
.footer-col .plain{font-size:14px;color:rgba(243,241,236,.82);line-height:1.8}
.footer-bottom{
  border-top:1px solid rgba(243,241,236,.12);
  padding:20px 0 28px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:12px;color:rgba(243,241,236,.55);
}
.footer-bottom .sep{opacity:.5;margin:0 8px}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:50;
  display:inline-flex;align-items:center;gap:8px;
  height:52px;padding:0 24px;border-radius:var(--r-pill);
  background:var(--ink);color:var(--white-text);
  font-size:14px;font-weight:600;
  box-shadow:0 16px 30px -16px rgba(20,32,30,.65);
  opacity:0;transform:translateY(10px);pointer-events:none;
  transition:opacity .3s var(--ease),transform .3s var(--ease),background .2s var(--ease);
}
.float-cta.is-show{opacity:1;transform:translateY(0);pointer-events:auto}
.float-cta:hover{background:var(--ink-soft);color:#fff}

/* ---------- 移动端全屏菜单 ---------- */
.mobile-panel{
  position:fixed;inset:0;z-index:80;
  background:var(--paper);
  padding:26px var(--gutter) calc(32px + env(safe-area-inset-bottom));
  display:flex;flex-direction:column;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .26s var(--ease),transform .26s var(--ease),visibility .26s;
}
.mobile-panel.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.panel-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}
.panel-top .logo{font-size:16px}
.panel-close{
  width:40px;height:40px;border-radius:var(--r-pill);
  border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;
  color:var(--ink);background:#fff;
}
.panel-nav{display:flex;flex-direction:column}
.panel-nav a{
  display:flex;align-items:center;justify-content:space-between;
  font-size:20px;line-height:56px;font-weight:600;
  color:var(--ink);border-bottom:1px dashed #DDD8CD;
}
.panel-nav a .badge{font-size:11px}
.panel-nav a:hover{color:var(--ink-soft)}
.panel-cta{margin-top:26px}
.panel-cta .btn{width:100%}
body.no-scroll{overflow:hidden}

/* ---------- 进入动画 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .42s var(--ease),transform .42s var(--ease)}
.reveal.is-in{opacity:1;transform:translateY(0)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px}
  .footer-col:nth-child(4){grid-column:1 / -1}
}
@media (max-width:768px){
  :root{--gutter:20px}
  body{padding-bottom:112px}
  main{padding-top:96px}
  .dock-wrap{
    top:auto;bottom:0;
    padding:0 16px calc(12px + env(safe-area-inset-bottom));
  }
  .dock-wrap.is-scrolled{top:auto}
  .dock{
    max-width:100%;height:60px;padding:0 8px 0 16px;gap:8px;
  }
  .dock-wrap.is-scrolled .dock{height:60px;box-shadow:var(--shadow-1)}
  .logo{font-size:13.5px}
  .dock-nav{display:none}
  .dock-actions{gap:6px}
  .dock-actions .icon-btn{display:none}
  .dock-actions .btn-sm{padding:8px 14px;font-size:12.5px}
  .burger{display:inline-flex}
  .page-head h1{max-width:100%}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
  .card-body{padding:18px 18px 22px}
  .card-body h3{font-size:1.05rem}
  .check-row{grid-template-columns:44px minmax(0,1fr);gap:14px}
  .check-row .tag{grid-column:2;justify-self:start}
  .checklist{padding:4px 18px}
  .cross-grid{grid-template-columns:1fr;gap:14px}
  .cta-band{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .footer-col:nth-child(4){grid-column:1 / -1}
  .float-cta{
    right:16px;left:16px;bottom:calc(84px + env(safe-area-inset-bottom));
    width:calc(100% - 32px);justify-content:center;
  }
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .card-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .faq-item{padding:0 18px}
  .faq-item summary{font-size:16px;padding:18px 0}
  .faq-item summary::before{left:-18px}
  .page-head .lead{font-size:15.5px}
  .cta-band{padding:30px 22px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1 !important;transform:none !important;transition:none !important}
  .topic-card:hover,.cross-card:hover,.btn:hover,.float-cta{transform:none !important}
  .topic-card:hover .card-media img{transform:none !important}
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
}