/* roulang page: index */
:root{
  --brand-900:#0E3A56;
  --brand-700:#16537E;
  --brand-500:#2A7FA8;
  --brand-100:#E3EEF5;
  --accent:#E4633A;
  --accent-soft:#FDF0EA;
  --mint:#12A594;
  --warn:#C9781A;
  --bg:#F6F8FA;
  --surface:#FFFFFF;
  --ink:#14202A;
  --ink-2:#4A5A67;
  --line:#E4EAF0;
  --radius:18px;
  --radius-lg:22px;
  --radius-sm:12px;
  --shadow-1:0 1px 2px rgba(16,42,67,.06),0 10px 28px -14px rgba(16,42,67,.16);
  --shadow-2:0 2px 8px rgba(16,42,67,.08),0 24px 44px -20px rgba(16,42,67,.30);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16.5px;line-height:1.85;font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:3px solid rgba(22,83,126,.38);outline-offset:2px;border-radius:8px}
::selection{background:var(--brand-100);color:var(--brand-900)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-sm{padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px}
.section-title{position:relative;font-size:30px;line-height:1.3;font-weight:700;color:var(--ink);padding-left:16px;letter-spacing:-.3px}
.section-title::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:4px;background:var(--brand-700)}
.section-desc{margin-top:8px;font-size:15px;color:var(--ink-2);max-width:660px}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-700);white-space:nowrap}
.text-link .arrow{transition:transform .22s var(--ease)}
.text-link:hover .arrow{transform:translateX(4px)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--radius-sm);font-size:15px;font-weight:600;transition:transform .22s var(--ease),background .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease)}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 22px -12px rgba(228,99,58,.7)}
.btn-primary:hover{background:#d4552c;transform:translateY(-2px);box-shadow:0 16px 28px -12px rgba(228,99,58,.72)}
.btn-primary:active{transform:translateY(-1px)}
.btn-primary:focus-visible{outline:3px solid rgba(228,99,58,.32);outline-offset:2px}
.btn-ghost{background:#fff;color:var(--brand-900);border:1px solid var(--line)}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-700);border-color:var(--brand-100);transform:translateY(-2px)}
.btn-block{width:100%}
.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none}
.tag{display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;background:var(--brand-100);color:var(--brand-700);font-size:12px;font-weight:600;line-height:1}
.tag-mint{background:rgba(18,165,148,.12);color:var(--mint)}
.tag-hot{background:var(--accent-soft);color:var(--accent)}
.tag-soft{background:rgba(74,90,103,.1);color:var(--ink-2)}
.meta{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:rgba(74,90,103,.85)}
.meta svg{width:14px;height:14px;flex:none}

/* ---------- 导航 ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;height:72px;
  background:rgba(255,255,255,.55);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.5);
  box-shadow:var(--shadow-1);
  transition:background .2s ease,height .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.site-header.scrolled{height:64px;background:rgba(255,255,255,.94);border-bottom-color:var(--line)}
.nav-inner{height:72px;display:flex;align-items:center;gap:20px;transition:height .2s ease}
.site-header.scrolled .nav-inner{height:64px}
.logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:var(--brand-900);white-space:nowrap}
.logo-mark{width:34px;height:34px;border-radius:11px;display:grid;place-items:center;color:#fff;font-size:15px;font-weight:800;
  background:linear-gradient(135deg,var(--brand-700),var(--brand-500));box-shadow:0 8px 18px -10px rgba(22,83,126,.8)}
.logo-text{display:flex;align-items:baseline;gap:6px}
.logo-text em{font-style:normal;font-size:12px;font-weight:600;color:var(--brand-500);letter-spacing:.5px}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:14px}
.nav-link{position:relative;padding:9px 14px;border-radius:10px;font-size:15px;font-weight:500;color:var(--brand-900);transition:background .2s var(--ease),color .2s var(--ease)}
.nav-link:hover{background:rgba(227,238,245,.75);color:var(--brand-700)}
.nav-link.active{font-weight:600;color:var(--brand-700)}
.nav-link.active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--brand-700)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-search{display:flex;align-items:center;height:44px;border-radius:var(--radius-sm);border:1px solid transparent;background:rgba(255,255,255,.62);overflow:hidden;transition:border-color .22s var(--ease),background .22s var(--ease),box-shadow .22s var(--ease)}
.nav-search.open{border-color:var(--line);background:#fff;box-shadow:0 12px 24px -16px rgba(16,42,67,.4)}
.nav-search input{width:0;height:100%;border:0;background:transparent;outline:none;font-size:15px;padding:0;transition:width .25s var(--ease),padding .25s var(--ease)}
.nav-search.open input{width:196px;padding:0 2px 0 14px}
.search-toggle{width:44px;height:44px;display:grid;place-items:center;color:var(--brand-700);border-radius:var(--radius-sm);transition:background .2s var(--ease)}
.search-toggle:hover{background:rgba(227,238,245,.8)}
.search-toggle svg{width:18px;height:18px}
.nav-cta{height:44px;padding:0 20px;border-radius:var(--radius-sm);font-size:15px;font-weight:600;color:#fff;background:var(--accent);display:inline-flex;align-items:center;transition:background .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease)}
.nav-cta:hover{background:#d4552c;transform:translateY(-2px);box-shadow:0 12px 22px -12px rgba(228,99,58,.75)}
.burger{display:none;width:44px;height:44px;border-radius:var(--radius-sm);place-items:center;color:var(--brand-900);transition:background .2s var(--ease)}
.burger:hover{background:rgba(227,238,245,.8)}
.burger svg{width:22px;height:22px}
.drawer{position:fixed;top:0;right:0;bottom:0;width:84vw;max-width:360px;background:#fff;z-index:120;padding:24px 22px 32px;overflow-y:auto;transform:translateX(100%);transition:transform .28s var(--ease);display:flex;flex-direction:column;gap:20px}
.drawer.open{transform:translateX(0)}
.drawer-mask{position:fixed;inset:0;background:rgba(14,32,46,.45);opacity:0;pointer-events:none;transition:opacity .25s ease;z-index:110}
.drawer-mask.open{opacity:1;pointer-events:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{width:44px;height:44px;display:grid;place-items:center;border-radius:var(--radius-sm);color:var(--brand-900);background:var(--brand-100)}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{padding:14px 12px;border-radius:12px;font-size:16px;font-weight:600;color:var(--brand-900);border:1px solid transparent}
.drawer-nav a:hover,.drawer-nav a.active{background:var(--brand-100);color:var(--brand-700);border-color:rgba(22,83,126,.12)}
.drawer-search{display:flex;align-items:center;gap:8px;height:48px;border:1px solid var(--line);border-radius:var(--radius-sm);padding:0 14px}
.drawer-search input{flex:1;border:0;outline:none;background:transparent;font-size:16px}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:150px 0 88px;background:var(--bg)}
.hero::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;opacity:.06}
.hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(227,238,245,.5) 1px,transparent 1px),linear-gradient(90deg,rgba(227,238,245,.5) 1px,transparent 1px);background-size:64px 64px;opacity:.5;pointer-events:none}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:999px;background:rgba(255,255,255,.85);border:1px solid var(--line);font-size:13px;font-weight:600;color:var(--brand-700);box-shadow:var(--shadow-1);margin-bottom:20px}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--mint)}
.hero-title{font-size:44px;line-height:1.2;font-weight:800;color:var(--ink);letter-spacing:-.6px}
.hero-sub{margin-top:18px;font-size:18px;line-height:1.75;color:var(--ink-2);max-width:600px}
.hero-actions{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px}
.pill-row{margin-top:26px;display:flex;flex-wrap:wrap;gap:10px}
.pill{display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;font-weight:600;color:var(--brand-700)}
.hero-media-wrap{display:flex;justify-content:flex-end}
.hero-media{position:relative;width:100%;max-width:320px;aspect-ratio:9/16;border-radius:22px;overflow:hidden;box-shadow:var(--shadow-2);background:#dfe8ee}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{content:"";position:absolute;left:0;right:0;bottom:0;height:48%;background:linear-gradient(to top,rgba(14,58,86,.88),rgba(14,58,86,.15),transparent)}
.hero-duration{position:absolute;top:14px;right:14px;z-index:3;height:24px;padding:0 10px;border-radius:999px;background:rgba(20,32,42,.72);color:#fff;font-size:12px;font-weight:600;display:inline-flex;align-items:center;font-family:"Barlow","Inter",sans-serif}
.hero-play{position:absolute;left:50%;top:46%;transform:translate(-50%,-50%);z-index:3;width:62px;height:62px;border-radius:50%;background:rgba(255,255,255,.9);display:grid;place-items:center;color:var(--accent);box-shadow:0 14px 30px -12px rgba(14,58,86,.6);transition:transform .22s var(--ease),box-shadow .22s var(--ease)}
.hero-play:hover{transform:translate(-50%,-50%) scale(1.06);box-shadow:0 0 0 10px rgba(255,255,255,.28),0 16px 32px -12px rgba(14,58,86,.6)}
.hero-play svg{width:22px;height:22px;margin-left:3px}
.hero-media-foot{position:absolute;left:18px;right:18px;bottom:18px;z-index:3;color:#fff}
.hero-media-foot strong{display:block;font-size:15px;font-weight:700;line-height:1.5}
.hero-media-foot span{font-size:12px;color:rgba(255,255,255,.78)}

/* ---------- 数据条 ---------- */
.stats{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:30px 24px;border-left:1px solid var(--line);display:flex;gap:14px;align-items:flex-start}
.stat:first-child{border-left:0}
.stat-icon{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:var(--brand-100);color:var(--brand-700);flex:none}
.stat-icon svg{width:20px;height:20px}
.stat-num{font-family:"Barlow","Inter",sans-serif;font-size:30px;font-weight:700;line-height:1.15;color:var(--brand-700);letter-spacing:-.5px}
.stat-num small{font-size:15px;font-weight:600;margin-left:2px}
.stat-label{font-size:13.5px;color:var(--ink-2);line-height:1.6;margin-top:2px}

/* ---------- 横滑轨 ---------- */
.rail-wrap{position:relative}
.rail{display:flex;gap:20px;overflow-x:auto;padding:8px 4px 20px;scroll-snap-type:x mandatory;-ms-overflow-style:none;scrollbar-width:none}
.rail::-webkit-scrollbar{display:none}
.reel-card{flex:0 0 calc((100% - 60px)/4);scroll-snap-align:start}
.reel-link{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease)}
.reel-link:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--brand-100)}
.reel-link:hover .reel-title{color:var(--brand-700)}
.reel-media{position:relative;aspect-ratio:3/4;overflow:hidden;background:#dfe8ee}
.reel-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.reel-link:hover .reel-media img{transform:scale(1.04)}
.reel-media::after{content:"";position:absolute;inset:auto 0 0 0;height:40%;background:linear-gradient(to top,rgba(14,58,86,.55),transparent)}
.reel-duration{position:absolute;left:12px;top:12px;z-index:2;height:24px;padding:0 9px;border-radius:999px;background:rgba(20,32,42,.7);color:#fff;font-size:12px;font-weight:600;display:inline-flex;align-items:center;font-family:"Barlow","Inter",sans-serif}
.reel-play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);z-index:2;width:48px;height:48px;border-radius:50%;background:rgba(255,255,255,.86);display:grid;place-items:center;color:var(--accent);transition:transform .22s var(--ease),box-shadow .22s var(--ease)}
.reel-link:hover .reel-play{transform:translate(-50%,-50%) scale(1.08);box-shadow:0 0 0 8px rgba(255,255,255,.25)}
.reel-play svg{width:16px;height:16px;margin-left:2px}
.reel-body{padding:14px 16px 18px}
.reel-title{font-size:15px;font-weight:600;line-height:1.5;color:var(--ink);transition:color .22s var(--ease);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.reel-foot{margin-top:8px;font-size:12.5px;color:rgba(74,90,103,.8)}

/* ---------- 种草清单 ---------- */
.seed-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.seed-col{display:grid;gap:24px;align-content:start}
.seed-feature{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease)}
.seed-feature:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--brand-100)}
.seed-feature:hover .seed-title{color:var(--brand-700)}
.seed-feature:hover .arrow{transform:translateX(4px)}
.seed-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#dfe8ee}
.seed-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.seed-feature:hover .seed-media img{transform:scale(1.03)}
.seed-index{position:absolute;left:14px;top:14px;z-index:2;width:34px;height:34px;border-radius:11px;background:rgba(255,255,255,.92);color:var(--brand-700);font-family:"Barlow","Inter",sans-serif;font-weight:700;font-size:15px;display:grid;place-items:center}
.seed-body{padding:20px 22px 24px}
.seed-title{font-size:20px;font-weight:600;line-height:1.4;color:var(--ink);transition:color .22s var(--ease)}
.seed-text{margin-top:10px;font-size:14.5px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.seed-more{margin-top:16px;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-700)}
.seed-more .arrow{transition:transform .22s var(--ease)}
.seed-bar{display:flex;align-items:center;gap:16px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;box-shadow:var(--shadow-1);transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease)}
.seed-bar:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--brand-100)}
.seed-bar:hover .seed-bar-title{color:var(--brand-700)}
.seed-bar:hover .arrow{transform:translateX(4px)}
.seed-bar-icon{width:46px;height:46px;border-radius:14px;background:var(--brand-100);color:var(--brand-700);display:grid;place-items:center;flex:none}
.seed-bar-icon svg{width:22px;height:22px}
.seed-bar-body{flex:1;min-width:0}
.seed-bar-title{font-size:16.5px;font-weight:600;color:var(--ink);transition:color .22s var(--ease)}
.seed-bar-text{margin-top:4px;font-size:13.5px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.seed-bar .arrow{color:var(--brand-500);font-size:18px;transition:transform .22s var(--ease)}
.seed-strip{margin-top:24px;display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.seed-strip-card{display:flex;align-items:center;gap:14px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;box-shadow:var(--shadow-1);transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease)}
.seed-strip-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--brand-100)}
.seed-strip-num{font-family:"Barlow","Inter",sans-serif;font-size:20px;font-weight:700;color:var(--brand-500)}
.seed-strip-title{font-size:15px;font-weight:600;color:var(--ink)}
.seed-strip-text{font-size:13px;color:var(--ink-2)}

/* ---------- 最新信息 ---------- */
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px}
.chip{height:34px;padding:0 16px;border-radius:999px;border:1px solid var(--line);background:#fff;font-size:13.5px;font-weight:600;color:var(--ink-2);display:inline-flex;align-items:center;transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease)}
.chip:hover{border-color:var(--brand-500);color:var(--brand-700)}
.chip.active{background:var(--brand-700);border-color:var(--brand-700);color:#fff}
.news-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:start}
.news-main{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease)}
.news-main:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--brand-100)}
.news-main:hover h3{color:var(--brand-700)}
.news-main-media{aspect-ratio:16/9;overflow:hidden;background:#dfe8ee}
.news-main-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.news-main:hover .news-main-media img{transform:scale(1.03)}
.news-main-body{padding:22px 24px 26px}
.news-main-body h3{margin-top:12px;font-size:21px;font-weight:700;line-height:1.45;color:var(--ink);transition:color .22s var(--ease);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-main-body p{margin-top:10px;font-size:14.5px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-main-body .meta{margin-top:16px}
.news-side{display:grid;gap:16px}
.news-row{display:flex;gap:14px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:14px;box-shadow:var(--shadow-1);transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease)}
.news-row:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--brand-100)}
.news-row:hover h4{color:var(--brand-700)}
.news-thumb{width:76px;height:76px;border-radius:12px;overflow:hidden;flex:none;background:#dfe8ee}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.news-row-body{min-width:0;flex:1}
.news-row-body h4{font-size:15.5px;font-weight:600;line-height:1.5;color:var(--ink);transition:color .22s var(--ease);display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-row-body p{margin-top:4px;font-size:13.5px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-row-foot{margin-top:8px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.empty-state{grid-column:1/-1;background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius);padding:56px 24px;text-align:center}
.empty-state svg{width:56px;height:56px;color:var(--brand-500);opacity:.55;margin:0 auto 14px}
.empty-state p{font-size:15px;color:var(--ink-2);margin-bottom:16px}

/* ---------- 口碑 ---------- */
.voice-rail{display:flex;gap:20px;overflow-x:auto;padding:8px 4px 20px;scroll-snap-type:x mandatory;-ms-overflow-style:none;scrollbar-width:none}
.voice-rail::-webkit-scrollbar{display:none}
.voice-card{position:relative;flex:0 0 300px;scroll-snap-align:start;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px 22px;box-shadow:var(--shadow-1);transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease)}
.voice-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--brand-100)}
.voice-card::before{content:"\201C";position:absolute;left:16px;top:2px;font-family:Georgia,"Songti SC",serif;font-size:62px;line-height:1;color:rgba(22,83,126,.12)}
.voice-user{display:flex;align-items:center;gap:12px}
.voice-avatar{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,var(--brand-500),var(--brand-700));color:#fff;display:grid;place-items:center;font-size:15px;font-weight:700;flex:none}
.voice-name{font-size:15px;font-weight:600;color:var(--ink)}
.voice-stars{margin-top:2px;color:var(--accent);font-size:13px;letter-spacing:2px}
.voice-text{margin-top:16px;font-size:15px;color:var(--ink-2);line-height:1.75}
.voice-time{margin-top:14px;font-size:12.5px;color:rgba(74,90,103,.75)}

/* ---------- CTA ---------- */
.cta-band{background:var(--brand-100);border-radius:20px;padding:44px;display:grid;grid-template-columns:5fr 7fr;gap:36px;align-items:center}
.cta-band h2{font-size:27px;font-weight:700;line-height:1.35;color:var(--brand-900)}
.cta-band p{margin-top:10px;font-size:15px;color:var(--ink-2);max-width:360px}
.cta-form{display:grid;grid-template-columns:1.2fr 1fr auto;gap:12px}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:14px;font-weight:500;color:var(--ink)}
.field input,.field select{height:48px;border-radius:12px;border:1px solid #DCE4EB;background:#fff;padding:0 14px;font-size:15px;outline:none;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.field input:focus,.field select:focus{border-color:var(--brand-700);box-shadow:0 0 0 3px rgba(22,83,126,.16)}
.field input::placeholder{color:rgba(74,90,103,.6)}
.cta-form .btn{align-self:end;height:48px;white-space:nowrap}
.form-note{grid-column:1/-1;font-size:12px;color:rgba(74,90,103,.85);line-height:1.7}
.form-ok{grid-column:1/-1;display:none;background:rgba(18,165,148,.12);color:#0d7a6d;border-radius:10px;padding:12px 14px;font-size:14px}
.form-ok.show{display:block}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:border-color .22s var(--ease),box-shadow .22s var(--ease)}
.faq-item:hover{border-color:var(--brand-100);box-shadow:var(--shadow-1)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:18px 22px;text-align:left;font-size:15px;font-weight:600;color:var(--ink);min-height:56px}
.faq-icon{width:26px;height:26px;border-radius:8px;background:var(--brand-100);color:var(--brand-700);display:grid;place-items:center;flex:none;font-size:16px;font-weight:600;transition:transform .25s var(--ease),background .25s var(--ease),color .25s var(--ease)}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--accent);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease)}
.faq-a p{padding:0 22px 20px;font-size:14px;line-height:1.85;color:var(--ink-2)}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:96px;background:var(--brand-900);color:rgba(255,255,255,.72);padding:64px 0 0}
.foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px}
.foot-brand .logo{color:#fff;margin-bottom:16px}
.foot-brand .logo-text em{color:rgba(255,255,255,.7)}
.foot-brand .logo-mark{background:linear-gradient(135deg,var(--brand-500),var(--mint))}
.foot-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);max-width:320px}
.foot-contact{margin-top:18px;display:grid;gap:8px;font-size:13.5px;color:rgba(255,255,255,.66)}
.foot-contact span{display:flex;align-items:center;gap:8px}
.foot-contact svg{width:15px;height:15px;flex:none;opacity:.8}
.foot-col h3{font-size:14px;font-weight:600;color:rgba(255,255,255,.9);margin-bottom:16px;letter-spacing:.3px}
.foot-col ul{display:grid;gap:11px}
.foot-col a{font-size:14px;color:rgba(255,255,255,.72);transition:color .2s var(--ease),transform .2s var(--ease);display:inline-block}
.foot-col a:hover{color:#fff;transform:translateX(2px)}
.foot-qr{width:104px;height:104px;border-radius:14px;background:rgba(255,255,255,.1);display:grid;place-items:center;font-size:12px;color:rgba(255,255,255,.6);margin-top:6px}
.foot-bottom{margin-top:52px;border-top:1px solid rgba(255,255,255,.16);padding:22px 0;display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.6)}
.foot-bottom a{color:rgba(255,255,255,.66)}
.foot-bottom a:hover{color:#fff}

/* ---------- 回到顶部 ---------- */
.to-top{position:fixed;right:24px;bottom:28px;width:44px;height:44px;border-radius:50%;background:var(--brand-700);color:#fff;display:grid;place-items:center;box-shadow:var(--shadow-2);opacity:0;pointer-events:none;transform:translateY(10px);transition:opacity .25s var(--ease),transform .25s var(--ease),background .25s var(--ease);z-index:90}
.to-top.show{opacity:1;pointer-events:auto;transform:translateY(0)}
.to-top:hover{background:var(--accent)}
.to-top svg{width:18px;height:18px}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .hero-title{font-size:40px}
  .reel-card{flex-basis:calc((100% - 40px)/3)}
}
@media (max-width:1023px){
  .container{padding:0 20px}
  .section{padding:76px 0}
  .section-sm{padding:60px 0}
  .nav-links{display:none}
  .nav-search{display:none}
  .burger{display:grid}
  .nav-cta{display:none}
  .hero{padding:126px 0 68px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-title{font-size:36px}
  .hero-media-wrap{justify-content:center}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(3){border-left:0}
  .stat{border-top:1px solid var(--line)}
  .stat:nth-child(1),.stat:nth-child(2){border-top:0}
  .seed-grid{grid-template-columns:1fr}
  .seed-strip{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .cta-band{grid-template-columns:1fr;padding:32px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .reel-card{flex-basis:calc((100% - 40px)/2.4)}
  .section-title{font-size:26px}
}
@media (max-width:767px){
  .hero{padding:112px 0 56px}
  .hero-title{font-size:30px}
  .hero-sub{font-size:16px}
  .hero-media{max-width:260px}
  .hero-actions .btn{flex:1 1 auto}
  .section{padding:56px 0}
  .section-title{font-size:24px}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;margin-bottom:20px}
  .stats-grid{grid-template-columns:1fr}
  .stat{border-left:0;border-top:1px solid var(--line);padding:22px 20px}
  .stat:first-child{border-top:0}
  .reel-card{flex-basis:78%}
  .rail{padding-left:0;padding-right:0}
  .voice-card{flex-basis:82%}
  .seed-strip-card,.seed-bar{padding:16px}
  .cta-form{grid-template-columns:1fr}
  .cta-form .btn{width:100%}
  .cta-band{padding:26px 20px}
  .cta-band h2{font-size:22px}
  .news-main-body h3{font-size:18px}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column;align-items:flex-start}
  .to-top{right:16px;bottom:18px}
  .faq-q{font-size:14.5px;padding:16px 18px}
  .faq-a p{padding:0 18px 18px}
}
@media (max-width:575px){
  .container{padding:0 16px}
  .hero-badge{font-size:12px}
  .logo-text em{display:none}
  .seed-strip{grid-template-columns:1fr}
}

/* roulang page: article */
:root{
  --brand-900:#0E3A56;
  --brand-700:#16537E;
  --brand-500:#2A7FA8;
  --brand-100:#E3EEF5;
  --accent:#E4633A;
  --accent-soft:#FDF0EA;
  --mint:#12A594;
  --warn:#C9781A;
  --bg:#F6F8FA;
  --surface:#FFFFFF;
  --ink:#14202A;
  --ink-2:#4A5A67;
  --line:#E4EAF0;
  --radius:18px;
  --radius-sm:12px;
  --shadow-1:0 1px 2px rgba(16,42,67,.06), 0 10px 28px -14px rgba(16,42,67,.16);
  --shadow-2:0 2px 6px rgba(16,42,67,.08), 0 22px 44px -18px rgba(16,42,67,.26);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid rgba(228,99,58,.32);outline-offset:2px}
button{font:inherit;color:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
em{font-style:normal}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-family:"Barlow","Inter",-apple-system,sans-serif;font-variant-numeric:tabular-nums}

/* ============ 导航 ============ */
.site-header{
  position:absolute;
  top:0;left:0;right:0;
  z-index:60;
  height:72px;
  background:rgba(255,255,255,.55);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.5);
  box-shadow:var(--shadow-1);
  transition:background 200ms var(--ease),height 200ms var(--ease),box-shadow 200ms var(--ease);
}
.site-header.is-scrolled{
  position:fixed;
  height:64px;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid var(--line);
  box-shadow:0 6px 22px -12px rgba(16,42,67,.28);
}
.nav-inner{display:flex;align-items:center;gap:28px;height:100%}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none}
.logo-mark{
  width:36px;height:36px;border-radius:11px;
  background:linear-gradient(135deg,var(--brand-700),var(--brand-500));
  color:#fff;font-weight:800;font-size:19px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px -8px rgba(22,83,126,.7);
}
.logo-text{font-size:17px;font-weight:800;letter-spacing:.5px;color:var(--brand-900);line-height:1.1}
.logo-text em{display:block;font-size:11px;font-weight:500;color:var(--ink-2);letter-spacing:2px}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px}
.nav-link{
  position:relative;
  padding:9px 14px;border-radius:10px;
  font-size:15px;font-weight:500;color:var(--brand-900);
  transition:color 180ms var(--ease),background 180ms var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:var(--brand-700);transform:scaleX(0);transform-origin:left;transition:transform 200ms var(--ease);
}
.nav-link:hover{background:rgba(227,238,245,.7);color:var(--brand-700)}
.nav-link.active{font-weight:600;color:var(--brand-700)}
.nav-link.active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-search{position:relative;display:flex;align-items:center}
.nav-search input{
  width:0;height:44px;padding:0;border:1px solid transparent;border-radius:12px;
  background:rgba(255,255,255,.9);font-size:15px;color:var(--ink);
  transition:width 220ms var(--ease),padding 220ms var(--ease),border-color 200ms var(--ease),box-shadow 200ms var(--ease);
}
.nav-search.is-open input{width:210px;padding:0 44px 0 16px;border-color:var(--line)}
.nav-search input:focus{border-color:var(--brand-700);box-shadow:0 0 0 3px rgba(22,83,126,.16);outline:none}
.search-toggle{
  width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:rgba(255,255,255,.8);color:var(--brand-900);
  display:flex;align-items:center;justify-content:center;
  transition:background 180ms var(--ease),color 180ms var(--ease),transform 180ms var(--ease);
}
.search-toggle svg{width:18px;height:18px}
.search-toggle:hover{background:var(--brand-100);color:var(--brand-700)}
.nav-search:not(.is-open) .search-toggle{position:relative;z-index:2}
.nav-search.is-open .search-toggle{position:absolute;right:0;border-color:transparent;background:transparent}
.nav-cta{
  height:44px;padding:0 20px;border-radius:12px;background:var(--accent);color:#fff;
  font-size:15px;font-weight:600;display:inline-flex;align-items:center;
  box-shadow:0 12px 24px -16px rgba(228,99,58,.9);
  transition:background 180ms var(--ease),transform 180ms var(--ease),box-shadow 180ms var(--ease);
}
.nav-cta:hover{background:#d4552c;transform:translateY(-2px);box-shadow:0 16px 30px -14px rgba(228,99,58,.85)}
.nav-cta:active{transform:translateY(-1px)}
.burger{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:rgba(255,255,255,.85);align-items:center;justify-content:center;color:var(--brand-900);
}
.burger svg{width:20px;height:20px}

/* 移动抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(14,32,46,.45);opacity:0;pointer-events:none;transition:opacity 200ms var(--ease);z-index:80}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:84vw;max-width:360px;z-index:90;
  background:var(--surface);box-shadow:-18px 0 40px -22px rgba(16,42,67,.5);
  padding:22px 20px;transform:translateX(102%);transition:transform 260ms var(--ease);
  display:flex;flex-direction:column;gap:18px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{width:44px;height:44px;border:1px solid var(--line);border-radius:12px;background:#fff;display:flex;align-items:center;justify-content:center}
.drawer-close svg{width:18px;height:18px}
.drawer-nav{display:flex;flex-direction:column;gap:4px;border-top:1px solid var(--line);padding-top:14px}
.drawer-nav a{padding:13px 12px;border-radius:12px;font-size:16px;font-weight:500;color:var(--brand-900)}
.drawer-nav a:hover{background:var(--brand-100);color:var(--brand-700)}
.drawer-nav a.active{background:var(--brand-100);font-weight:600}
.drawer-search input{width:100%;height:48px;padding:0 16px;border:1px solid #DCE4EB;border-radius:12px;font-size:16px}
.drawer-cta{width:100%;justify-content:center}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:12px;border:1px solid transparent;
  font-size:15px;font-weight:600;transition:all 200ms var(--ease);
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 14px 26px -18px rgba(228,99,58,.95)}
.btn-primary:hover{background:#d4552c;transform:translateY(-2px);box-shadow:0 18px 32px -16px rgba(228,99,58,.9)}
.btn-primary:active{transform:translateY(-1px)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--brand-900)}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-700);border-color:var(--brand-100)}
.btn-text{padding:0;height:auto;border:0;background:none;color:var(--brand-700);font-weight:600}
.btn-text span{transition:transform 200ms var(--ease)}
.btn-text:hover span{transform:translateX(4px)}

/* ============ 文章页头 ============ */
.page-hero{
  position:relative;
  padding:124px 0 40px;
  background:
    linear-gradient(180deg,rgba(255,255,255,.88),rgba(227,238,245,.9)),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(74,90,103,.85)}
.breadcrumb a{color:var(--brand-700)}
.breadcrumb a:hover{text-decoration:underline}
.breadcrumb .sep{color:rgba(74,90,103,.5)}
.breadcrumb .current{color:var(--ink-2)}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:20px 0 16px}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  background:var(--brand-100);color:var(--brand-700);font-size:12px;font-weight:600;
}
.meta-item{font-size:13px;color:rgba(74,90,103,.7);display:inline-flex;align-items:center;gap:6px}
.meta-item svg{width:14px;height:14px}
.page-hero h1{
  font-size:36px;line-height:1.3;font-weight:800;color:var(--brand-900);
  max-width:900px;letter-spacing:.2px;
}
.lead{
  margin-top:18px;max-width:760px;padding-left:14px;border-left:3px solid var(--brand-500);
  font-size:16px;color:var(--ink-2);
}

/* ============ 正文 ============ */
.article-section{padding:56px 0 24px}
.article-main{
  max-width:760px;margin:0 auto;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-1);
  padding:40px 40px 48px;
}
.article-body{font-size:16.5px;line-height:1.9;color:var(--ink-2)}
.article-body p{margin:0 0 1.15em}
.article-body h2{
  position:relative;margin:44px 0 16px;padding-left:14px;
  font-size:26px;line-height:1.35;font-weight:700;color:var(--brand-900);
}
.article-body h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--brand-700)}
.article-body h3{margin:32px 0 12px;font-size:20px;line-height:1.35;font-weight:600;color:var(--ink)}
.article-body h4{margin:24px 0 10px;font-size:17px;font-weight:600;color:var(--ink)}
.article-body a{color:var(--brand-700);border-bottom:1px solid rgba(22,83,126,.3)}
.article-body a:hover{color:var(--accent);border-bottom-color:rgba(228,99,58,.5)}
.article-body ul{margin:0 0 1.2em;padding-left:2px}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:8px}
.article-body ul li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:1px;background:var(--brand-500)}
.article-body ol{margin:0 0 1.2em;padding-left:22px;list-style:decimal}
.article-body ol li{margin-bottom:8px}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;background:#F4F7FA;border-left:3px solid var(--accent);
  border-radius:0 12px 12px 0;color:var(--ink-2);
}
.article-body img{border-radius:14px;margin:24px 0;width:100%;height:auto}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;text-align:center;color:rgba(74,90,103,.75);margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.article-body thead th{background:var(--brand-100);color:var(--brand-900);font-weight:600}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.article-body tbody tr:nth-child(even){background:#FAFCFD}
.article-body strong{color:var(--ink);font-weight:600}
.empty-state{text-align:center;padding:28px 8px 36px}
.empty-state h2{font-size:24px;font-weight:700;color:var(--brand-900);padding:0;margin:0 0 12px}
.empty-state h2::before{display:none}
.empty-state p{margin-bottom:22px}
.article-foot{
  max-width:760px;margin:28px auto 0;display:flex;flex-wrap:wrap;align-items:center;
  justify-content:space-between;gap:16px;
}
.article-foot .tip{font-size:13px;color:rgba(74,90,103,.75)}

/* ============ 服务入口 ============ */
.section{padding:72px 0}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px}
.section-head h2{position:relative;padding-left:14px;font-size:30px;line-height:1.3;font-weight:700;color:var(--brand-900)}
.section-head h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--brand-700)}
.section-head p{margin-top:10px;font-size:15px;color:var(--ink-2)}
.entry-list{display:grid;gap:18px}
.entry{
  display:grid;grid-template-columns:132px 1fr auto;align-items:center;gap:18px;
  padding:16px;background:var(--surface);border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--shadow-1);transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),border-color 220ms var(--ease);
}
.entry:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--brand-100)}
.entry:hover h3{color:var(--brand-700)}
.entry-thumb{aspect-ratio:4/3;border-radius:12px;overflow:hidden;background:#EDF2F6}
.entry-thumb img{width:100%;height:100%;object-fit:cover}
.entry h3{font-size:18px;font-weight:600;color:var(--ink);margin-bottom:6px;transition:color 200ms var(--ease)}
.entry p{font-size:14px;color:var(--ink-2)}
.entry-tag{font-size:12px;font-weight:600;color:var(--mint);background:rgba(18,165,148,.1);padding:4px 10px;border-radius:999px;justify-self:end;white-space:nowrap}

/* ============ CTA 带 ============ */
.cta-band{
  background:var(--brand-100);border-radius:20px;padding:36px;
  display:grid;grid-template-columns:5fr 7fr;gap:32px;align-items:center;
}
.cta-band h2{font-size:26px;line-height:1.35;font-weight:700;color:var(--brand-900);margin-bottom:10px}
.cta-band p{font-size:15px;color:var(--ink-2)}
.join-form{display:grid;grid-template-columns:1fr 1fr auto;gap:12px;align-items:center}
.join-form input,.join-form select{
  height:48px;padding:0 14px;border:1px solid #DCE4EB;border-radius:12px;background:#fff;
  font-size:15px;color:var(--ink);width:100%;
}
.join-form input:focus,.join-form select:focus{border-color:var(--brand-700);box-shadow:0 0 0 3px rgba(22,83,126,.16);outline:none}
.form-note{grid-column:1/-1;font-size:12px;color:rgba(74,90,103,.75)}
.form-success{
  grid-column:1/-1;display:none;padding:10px 14px;border-radius:12px;
  background:rgba(18,165,148,.12);color:#0C7A6D;font-size:13px;font-weight:600;
}
.form-success.is-show{display:block}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-1);overflow:hidden}
.faq-item:hover{border-color:var(--brand-100)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;background:none;border:0;text-align:left;
  font-size:15px;font-weight:600;color:var(--ink);
}
.faq-icon{
  flex:none;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--brand-700);
  transition:transform 250ms var(--ease),background 200ms var(--ease);
}
.faq-icon svg{width:14px;height:14px}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--brand-100)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 250ms var(--ease)}
.faq-a p{padding:0 22px 20px;font-size:14px;line-height:1.8;color:var(--ink-2)}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);margin-top:72px;padding:64px 0 28px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.site-footer .logo-mark{background:rgba(255,255,255,.12);color:#fff}
.site-footer .logo-text{color:#fff}
.site-footer .logo-text em{color:rgba(255,255,255,.6)}
.foot-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.7);max-width:320px}
.foot-contact{margin-top:18px;display:grid;gap:10px}
.foot-contact span{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72)}
.foot-contact svg{width:16px;height:16px;flex:none}
.foot-col h3{font-size:14px;font-weight:600;color:rgba(255,255,255,.9);margin-bottom:16px}
.foot-col ul{display:grid;gap:10px}
.foot-col a{font-size:14px;color:rgba(255,255,255,.72);transition:color 180ms var(--ease),transform 180ms var(--ease);display:inline-block}
.foot-col a:hover{color:#fff;transform:translateX(-2px)}
.foot-qr{
  margin-top:16px;width:88px;height:88px;border-radius:14px;border:1px dashed rgba(255,255,255,.3);
  display:flex;align-items:center;justify-content:center;font-size:12px;color:rgba(255,255,255,.55);
}
.foot-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.16);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.6);
}
.to-top{
  position:fixed;right:22px;bottom:22px;width:44px;height:44px;border-radius:50%;
  border:1px solid var(--line);background:#fff;color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-2);
  opacity:0;pointer-events:none;transition:all 220ms var(--ease);z-index:70;
}
.to-top.is-show{opacity:1;pointer-events:auto}
.to-top:hover{background:var(--accent);color:#fff;border-color:var(--accent)}
.to-top svg{width:18px;height:18px}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .nav-search.is-open input{width:160px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .entry{grid-template-columns:112px 1fr auto}
}
@media (max-width:900px){
  .cta-band{grid-template-columns:1fr;padding:28px}
  .join-form{grid-template-columns:1fr}
  .join-form .btn{width:100%}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .nav-links,.nav-search{display:none}
  .burger{display:flex}
  .nav-cta{display:none}
  .page-hero{padding:104px 0 32px}
  .page-hero h1{font-size:28px;line-height:1.35}
  .article-section{padding:40px 0 16px}
  .article-main{padding:26px 20px 32px;border-radius:16px}
  .article-body h2{font-size:22px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .section{padding:56px 0}
  .section-head h2{font-size:24px}
  .entry{grid-template-columns:96px 1fr;gap:14px}
  .entry-tag{grid-column:2;justify-self:start}
  .article-foot{flex-direction:column;align-items:flex-start}
  .article-foot .btn{width:100%}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .page-hero h1{font-size:26px}
  .logo-text{font-size:16px}
  .entry{grid-template-columns:1fr;padding:14px}
  .entry-thumb{aspect-ratio:16/9}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column}
}

/* roulang page: category1 */
:root{
  --brand-900:#0E3A56;
  --brand-700:#16537E;
  --brand-500:#2A7FA8;
  --brand-100:#E3EEF5;
  --accent:#E4633A;
  --accent-soft:#FDF0EA;
  --mint:#12A594;
  --warn:#C9781A;
  --bg:#F6F8FA;
  --surface:#FFFFFF;
  --ink:#14202A;
  --ink-2:#4A5A67;
  --line:#E4EAF0;
  --radius-lg:18px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-1:0 1px 2px rgba(16,42,67,.06),0 10px 28px -14px rgba(16,42,67,.16);
  --shadow-2:0 4px 10px rgba(16,42,67,.08),0 22px 44px -20px rgba(16,42,67,.26);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:"Barlow","Inter",-apple-system,"PingFang SC",sans-serif;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::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(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;border-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:none;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid rgba(42,127,168,.35);outline-offset:2px;border-radius:8px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.sec-head{margin-bottom:28px;}
.sec-head h2{
  position:relative;
  font-size:30px;
  line-height:1.3;
  font-weight:700;
  color:var(--ink);
  padding-left:16px;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;background:var(--brand-700);
}
.sec-head p{margin-top:10px;font-size:15px;color:rgba(74,90,103,.85);}
.meta-line{font-size:13px;line-height:1.6;color:rgba(74,90,103,.7);}
.badge{
  display:inline-flex;align-items:center;gap:5px;
  height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1;
  background:var(--brand-100);color:var(--brand-700);
}
.badge-new{background:rgba(18,165,148,.13);color:var(--mint);}
.badge-hot{background:rgba(228,99,58,.13);color:var(--accent);}
.badge-full{background:rgba(74,90,103,.12);color:var(--ink-2);}
.badge-live{background:rgba(42,127,168,.14);color:var(--brand-500);}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border-radius:var(--radius-md);
  font-size:15px;font-weight:600;
  transition:transform 220ms var(--ease),background-color 220ms var(--ease),box-shadow 220ms var(--ease),color 220ms var(--ease),border-color 220ms var(--ease);
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 20px -10px rgba(228,99,58,.7);}
.btn-primary:hover{background:#d4552c;transform:translateY(-2px);box-shadow:0 14px 28px -12px rgba(228,99,58,.75);}
.btn-primary:active{transform:translateY(1px);}
.btn-outline{background:#fff;color:var(--ink);border:1px solid var(--line);}
.btn-outline:hover{background:var(--brand-100);border-color:var(--brand-100);color:var(--brand-700);transform:translateY(-2px);}
.btn-outline:active{transform:translateY(1px);}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-700);}
.btn-text svg{width:16px;height:16px;transition:transform 220ms var(--ease);}
.btn-text:hover svg{transform:translateX(4px);}
.btn[disabled],.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;}

/* 导航 */
.site-header{
  position:absolute;top:0;left:0;right:0;z-index:60;
  height:72px;
  background:rgba(255,255,255,.55);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.5);
  box-shadow:var(--shadow-1);
  transition:height 200ms var(--ease),background-color 200ms var(--ease),box-shadow 200ms var(--ease);
}
.site-header.is-stuck{
  position:fixed;
  height:64px;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid var(--line);
  box-shadow:0 6px 20px -12px rgba(16,42,67,.28);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:100%;}
.logo{display:inline-flex;align-items:center;gap:10px;}
.logo-mark{
  width:36px;height:36px;border-radius:12px;flex:none;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand-700),var(--brand-500));
  color:#fff;font-size:17px;font-weight:800;
  box-shadow:0 6px 16px -8px rgba(22,83,126,.7);
}
.logo-text{font-size:18px;font-weight:800;color:var(--brand-900);letter-spacing:.2px;line-height:1;}
.logo-text em{
  font-style:normal;font-size:12px;font-weight:600;color:var(--brand-700);
  background:var(--brand-100);border-radius:6px;padding:3px 6px;margin-left:6px;
  vertical-align:middle;
}
.nav-links{display:flex;align-items:center;gap:2px;}
.nav-link{
  position:relative;padding:9px 14px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:500;color:var(--brand-900);white-space:nowrap;
  transition:background-color 200ms var(--ease),color 200ms var(--ease);
}
.nav-link:hover{background:rgba(255,255,255,.78);color:var(--brand-700);}
.nav-link.active{color:var(--brand-700);font-weight:600;}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--brand-700);
}
.nav-actions{display:flex;align-items:center;gap:10px;}
.nav-search{position:relative;display:flex;align-items:center;}
.nav-search input{
  width:196px;height:44px;padding:0 40px 0 16px;
  border:1px solid rgba(255,255,255,.8);border-radius:var(--radius-md);
  background:rgba(255,255,255,.72);color:var(--ink);font-size:14px;
  transition:border-color 200ms var(--ease),box-shadow 200ms var(--ease),background-color 200ms var(--ease);
}
.nav-search input::placeholder{color:rgba(74,90,103,.72);}
.nav-search input:focus{outline:none;border-color:var(--brand-700);background:#fff;box-shadow:0 0 0 3px rgba(42,127,168,.18);}
.search-toggle{
  display:none;width:44px;height:44px;border-radius:var(--radius-md);
  align-items:center;justify-content:center;color:var(--brand-900);
  border:1px solid rgba(255,255,255,.8);background:rgba(255,255,255,.7);
}
.search-toggle svg{width:19px;height:19px;}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:44px;padding:0 20px;border-radius:var(--radius-md);
  background:var(--accent);color:#fff;font-size:15px;font-weight:600;white-space:nowrap;
  box-shadow:0 10px 22px -12px rgba(228,99,58,.85);
  transition:transform 220ms var(--ease),background-color 220ms var(--ease);
}
.nav-cta:hover{background:#d4552c;transform:translateY(-2px);}
.nav-cta:active{transform:translateY(1px);}
.burger{
  display:none;width:44px;height:44px;border-radius:var(--radius-md);
  align-items:center;justify-content:center;color:var(--brand-900);
  border:1px solid rgba(255,255,255,.8);background:rgba(255,255,255,.7);
}
.burger svg{width:22px;height:22px;}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,32,46,.45);z-index:70;
  opacity:0;pointer-events:none;transition:opacity 260ms var(--ease);
}
.drawer{
  position:fixed;top:0;right:0;z-index:80;height:100%;
  width:84vw;max-width:360px;background:#fff;
  transform:translateX(102%);transition:transform 280ms var(--ease);
  padding:24px;overflow-y:auto;box-shadow:-20px 0 40px -24px rgba(16,42,67,.4);
}
body.drawer-open .drawer{transform:translateX(0);}
body.drawer-open .drawer-mask{opacity:1;pointer-events:auto;}
body.drawer-open{overflow:hidden;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-close{width:44px;height:44px;border-radius:var(--radius-md);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--brand-900);}
.drawer-close svg{width:20px;height:20px;}
.drawer-nav a{
  display:block;padding:14px 12px;border-radius:var(--radius-md);
  font-size:16px;font-weight:600;color:var(--ink);border-bottom:1px solid var(--line);
}
.drawer-nav a.active{color:var(--brand-700);background:var(--brand-100);}
.drawer-search{margin:20px 0;}
.drawer-search input{width:100%;height:44px;padding:0 16px;border:1px solid #DCE4EB;border-radius:var(--radius-md);background:#fff;}
.drawer-cta{width:100%;}

/* Hero */
.page-hero{
  position:relative;
  padding:150px 0 64px;
  background-image:linear-gradient(180deg,rgba(246,248,250,.72),rgba(246,248,250,.94)),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(74,90,103,.8);margin-bottom:18px;}
.breadcrumb a{color:var(--brand-700);}
.breadcrumb a:hover{text-decoration:underline;}
.breadcrumb span.sep{color:rgba(74,90,103,.5);}
.breadcrumb .current{color:var(--ink-2);}
.page-hero h1{
  font-size:44px;line-height:1.22;font-weight:800;color:var(--ink);
  letter-spacing:-.4px;max-width:820px;
}
.page-hero h1 .hl{color:var(--brand-700);}
.hero-sub{margin-top:16px;font-size:17px;color:var(--ink-2);max-width:640px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.hero-tags .badge{height:28px;padding:0 14px;font-size:13px;background:rgba(255,255,255,.86);border:1px solid var(--line);color:var(--brand-700);}

/* 主体布局 */
.layout{display:grid;grid-template-columns:4fr 8fr;gap:32px;align-items:start;}
.sidebar{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:20px;box-shadow:var(--shadow-1);
}
.side-card h3{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:14px;letter-spacing:.3px;}
.toc-list li+li{margin-top:4px;}
.toc-list a{
  display:flex;align-items:center;gap:8px;padding:9px 10px;border-radius:var(--radius-sm);
  font-size:14.5px;color:var(--ink-2);transition:background-color 200ms var(--ease),color 200ms var(--ease),padding-left 200ms var(--ease);
}
.toc-list a::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--brand-500);flex:none;}
.toc-list a:hover{background:var(--brand-100);color:var(--brand-700);padding-left:14px;}
.chip-group{display:flex;flex-wrap:wrap;gap:8px;}
.chip{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;
  border:1px solid var(--line);background:#fff;font-size:13.5px;color:var(--ink-2);
  transition:all 200ms var(--ease);
}
.chip:hover{border-color:var(--brand-100);background:var(--brand-100);color:var(--brand-700);}
.chip.on{background:var(--brand-700);border-color:var(--brand-700);color:#fff;font-weight:600;}
.ask-card{background:linear-gradient(160deg,var(--brand-100),#fff 70%);border-color:rgba(42,127,168,.2);}
.ask-card p{font-size:14px;line-height:1.75;margin-bottom:14px;}
.ask-card .btn{width:100%;min-height:44px;font-size:14px;}

/* 定义卡 */
.content-col{display:flex;flex-direction:column;gap:32px;}
.def-card{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:30px 28px 26px;
  box-shadow:var(--shadow-1);overflow:hidden;
}
.def-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:5px;
  background:linear-gradient(90deg,var(--brand-700),var(--brand-500) 60%,var(--mint));
}
.def-card h2{font-size:24px;font-weight:700;color:var(--ink);margin-bottom:12px;}
.def-card p+p{margin-top:12px;}
.def-points{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:22px;}
.def-points li{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:14px 16px;font-size:14px;color:var(--ink-2);
}
.def-points strong{display:block;font-size:15px;color:var(--brand-700);margin-bottom:4px;font-weight:700;}

/* 参数表 */
.table-wrap{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);overflow:hidden;
}
.table-head{padding:24px 26px 6px;}
.table-head h2{font-size:22px;font-weight:700;color:var(--ink);}
.table-head p{font-size:14px;margin-top:6px;color:rgba(74,90,103,.85);}
.table-scroll{overflow-x:auto;}
table.data-table{width:100%;border-collapse:collapse;min-width:560px;}
table.data-table th,table.data-table td{padding:14px 18px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--line);}
table.data-table thead th{background:var(--brand-100);color:var(--brand-900);font-weight:600;font-size:14px;}
table.data-table tbody tr:nth-child(odd){background:#FAFCFE;}
table.data-table tbody tr:hover{background:rgba(227,238,245,.6);}
table.data-table td:first-child{font-weight:600;color:var(--ink);}
.table-note{padding:14px 26px 22px;font-size:13px;color:rgba(74,90,103,.75);}

/* 图文要点 */
.feature-row{
  display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px;box-shadow:var(--shadow-1);
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),border-color 220ms var(--ease);
}
.feature-row:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--brand-100);}
.feature-row.reverse .feature-media{order:2;}
.feature-media{border-radius:16px;overflow:hidden;aspect-ratio:4/3;background:var(--brand-100);}
.feature-media img{width:100%;height:100%;object-fit:cover;}
.feature-body h3{font-size:20px;font-weight:600;color:var(--ink);margin-bottom:10px;transition:color 220ms var(--ease);}
.feature-row:hover .feature-body h3{color:var(--brand-700);}
.feature-body p{font-size:15px;line-height:1.85;}
.feature-body ul{margin-top:12px;display:flex;flex-direction:column;gap:6px;}
.feature-body li{position:relative;padding-left:16px;font-size:14px;color:var(--ink-2);}
.feature-body li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:1px;background:var(--brand-700);}

/* 清单条卡 */
.list-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:12px;box-shadow:var(--shadow-1);
}
.list-row{
  display:flex;align-items:center;gap:16px;padding:16px;border-radius:var(--radius-md);
  transition:background-color 200ms var(--ease),transform 200ms var(--ease);
}
.list-row:hover{background:var(--brand-100);transform:translateX(4px);}
.list-icon{
  width:44px;height:44px;flex:none;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--accent-soft);color:var(--accent);
}
.list-icon svg{width:22px;height:22px;}
.list-body{min-width:0;flex:1;}
.list-body h3{font-size:16px;font-weight:600;color:var(--ink);}
.list-body p{font-size:14px;color:var(--ink-2);margin-top:2px;}
.list-arrow{color:var(--brand-500);flex:none;display:flex;align-items:center;}
.list-arrow svg{width:18px;height:18px;transition:transform 200ms var(--ease);}
.list-row:hover .list-arrow svg{transform:translateX(4px);}
.list-row+.list-row{border-top:1px solid var(--line);}

/* 数据带（轻量） */
.mini-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
.mini-stat{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:18px 20px;box-shadow:var(--shadow-1);
}
.mini-stat b{display:block;font-family:var(--font-num);font-size:28px;font-weight:700;color:var(--brand-700);line-height:1.2;}
.mini-stat span{font-size:13.5px;color:rgba(74,90,103,.85);}

/* CTA 带 */
.cta-band{
  background:linear-gradient(140deg,var(--brand-100),#F9FCFE 65%);
  border:1px solid rgba(42,127,168,.18);
  border-radius:20px;padding:38px 36px;
  display:grid;grid-template-columns:5fr 7fr;gap:32px;align-items:center;
}
.cta-band h2{font-size:26px;font-weight:700;color:var(--ink);line-height:1.35;}
.cta-band p{margin-top:10px;font-size:15px;}
.cta-form{display:grid;grid-template-columns:1fr 1fr auto;gap:12px;align-items:end;}
.field{display:flex;flex-direction:column;gap:6px;}
.field label{font-size:14px;font-weight:500;color:var(--ink);}
.field input,.field select{
  height:48px;padding:0 14px;border:1px solid #DCE4EB;border-radius:var(--radius-md);
  background:#fff;font-size:15px;color:var(--ink);
  transition:border-color 200ms var(--ease),box-shadow 200ms var(--ease);
}
.field input:focus,.field select:focus{outline:none;border-color:var(--brand-700);box-shadow:0 0 0 3px rgba(42,127,168,.18);}
.form-privacy{grid-column:1/-1;font-size:12px;color:rgba(74,90,103,.78);}
.form-msg{grid-column:1/-1;display:none;font-size:13.5px;color:#0E3A56;background:rgba(18,165,148,.12);border-radius:var(--radius-sm);padding:10px 14px;}
.form-msg.show{display:block;}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  box-shadow:var(--shadow-1);overflow:hidden;transition:border-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.faq-item:hover{border-color:var(--brand-100);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;text-align:left;font-size:15px;font-weight:600;color:var(--ink);
}
.faq-icon{
  width:24px;height:24px;flex:none;border-radius:8px;background:var(--brand-100);color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;line-height:1;
  transition:transform 250ms var(--ease),background-color 250ms var(--ease),color 250ms var(--ease);
}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--accent);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height 280ms var(--ease);}
.faq-a p{padding:0 20px 20px;font-size:14px;line-height:1.8;color:var(--ink-2);}

/* 页脚 */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:0;}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;}
.foot-brand .logo-text{color:#fff;}
.foot-brand .logo-text em{background:rgba(255,255,255,.14);color:rgba(255,255,255,.9);}
.foot-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.7);max-width:320px;}
.foot-contact{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
.foot-contact span{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.75);}
.foot-contact svg{width:16px;height:16px;flex:none;color:rgba(255,255,255,.6);}
.foot-col h3{font-size:14px;font-weight:600;color:rgba(255,255,255,.92);margin-bottom:16px;letter-spacing:.4px;}
.foot-col ul{display:flex;flex-direction:column;gap:10px;}
.foot-col a{font-size:14px;color:rgba(255,255,255,.72);transition:color 200ms var(--ease),transform 200ms var(--ease);display:inline-block;}
.foot-col a:hover{color:#fff;transform:translateX(2px);}
.foot-qr{
  margin-top:16px;width:96px;height:96px;border-radius:var(--radius-md);
  border:1px dashed rgba(255,255,255,.32);
  display:flex;align-items:center;justify-content:center;
  font-size:12px;color:rgba(255,255,255,.6);text-align:center;
}
.foot-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.16);
  padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* 回到顶部 */
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:65;
  width:44px;height:44px;border-radius:50%;
  background:var(--brand-700);color:#fff;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-2);opacity:0;pointer-events:none;
  transition:opacity 240ms var(--ease),background-color 240ms var(--ease),transform 240ms var(--ease);
}
.to-top.show{opacity:1;pointer-events:auto;}
.to-top:hover{background:var(--accent);transform:translateY(-2px);}
.to-top svg{width:20px;height:20px;}

@media (max-width:1279px){
  .page-hero h1{font-size:38px;}
}
@media (max-width:1024px){
  .nav-links{display:none;}
  .nav-search input{display:none;}
  .search-toggle{display:flex;}
  .nav-search.open input{
    display:block;position:absolute;right:0;top:50px;width:280px;
    background:#fff;border-color:var(--line);box-shadow:var(--shadow-2);z-index:70;
  }
  .burger{display:flex;}
  .nav-inner{gap:12px;}
  .layout{grid-template-columns:1fr;}
  .sidebar{position:static;}
  .page-hero{padding-top:132px;}
  .cta-band{grid-template-columns:1fr;padding:32px 26px;}
  .def-points{grid-template-columns:1fr 1fr;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .section{padding:72px 0;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .page-hero{padding:118px 0 48px;}
  .page-hero h1{font-size:31px;}
  .hero-sub{font-size:15.5px;}
  .sec-head h2{font-size:24px;}
  .def-card{padding:24px 20px 22px;}
  .def-points{grid-template-columns:1fr;}
  .feature-row{grid-template-columns:1fr;padding:18px;}
  .feature-row.reverse .feature-media{order:0;}
  .mini-stats{grid-template-columns:1fr;}
  .cta-form{grid-template-columns:1fr;}
  .cta-band h2{font-size:22px;}
  .foot-grid{grid-template-columns:1fr;}
  .foot-bottom{flex-direction:column;gap:8px;}
  .section{padding:56px 0;}
  .logo-text em{display:none;}
  .nav-cta{padding:0 14px;font-size:14px;}
}
@media (max-width:520px){
  .page-hero h1{font-size:27px;}
  .logo-text{font-size:16px;}
  .table-head{padding:20px 20px 4px;}
  .table-note{padding:12px 20px 20px;}
}

/* roulang page: category2 */
:root{
  --brand-900:#0E3A56;
  --brand-700:#16537E;
  --brand-500:#2A7FA8;
  --brand-100:#E3EEF5;
  --accent:#E4633A;
  --accent-soft:#FDF0EA;
  --mint:#12A594;
  --warn:#C9781A;
  --bg:#F6F8FA;
  --surface:#FFFFFF;
  --ink:#14202A;
  --ink-2:#4A5A67;
  --line:#E4EAF0;
  --r-xxl:22px;
  --r-xl:18px;
  --r-md:12px;
  --shadow-1:0 1px 2px rgba(16,42,67,.06), 0 10px 28px -14px rgba(16,42,67,.16);
  --shadow-2:0 6px 16px rgba(16,42,67,.08), 0 24px 50px -22px rgba(16,42,67,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --num:"Barlow","Inter",-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::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(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);font-weight:700;line-height:1.3}
p{margin:0}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),background-color .2s var(--ease)}
img{display:block;max-width:100%;height:auto}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(228,99,58,.32);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ============ 导航 ============ */
.site-header{
  position:absolute;top:0;left:0;right:0;z-index:60;height:72px;
  background:rgba(255,255,255,.55);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.5);
  box-shadow:var(--shadow-1);
  transition:background .2s var(--ease),height .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.site-header.is-stuck{
  position:fixed;height:64px;background:rgba(255,255,255,.94);
  border-bottom-color:var(--line);
  box-shadow:0 8px 24px -16px rgba(16,42,67,.34);
}
.nav-inner{display:flex;align-items:center;gap:24px;height:100%}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none}
.logo-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--brand-700),var(--brand-500));
  color:#fff;font-size:18px;font-weight:800;
  box-shadow:0 8px 18px -10px rgba(22,83,126,.7);
}
.logo-text{
  display:inline-flex;flex-direction:column;line-height:1.05;
  font-size:19px;font-weight:800;letter-spacing:.4px;color:var(--brand-900);
  text-shadow:0 1px 0 rgba(255,255,255,.6);
}
.logo-text em{font-style:normal;font-size:11px;font-weight:600;letter-spacing:2px;color:var(--brand-500)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:6px}
.nav-link{
  position:relative;padding:9px 13px;border-radius:10px;
  font-size:15px;font-weight:500;color:var(--brand-900);
}
.nav-link:hover{background:rgba(22,83,126,.09);color:var(--brand-700)}
.nav-link.active{font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:1px;height:2px;border-radius:2px;background:var(--brand-700);
}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-search{
  display:flex;align-items:center;height:44px;border-radius:12px;
  border:1px solid transparent;background:rgba(255,255,255,.62);
  transition:border-color .22s var(--ease),background-color .22s var(--ease),box-shadow .22s var(--ease);
}
.nav-search input{
  width:0;padding:0;border:0;background:transparent;outline:none;
  font-size:14.5px;opacity:0;
  transition:width .26s var(--ease),opacity .2s var(--ease),padding .26s var(--ease);
}
.nav-search.open{border-color:var(--brand-700);background:#fff;box-shadow:0 0 0 3px rgba(22,83,126,.12)}
.nav-search.open input{width:178px;padding:0 4px 0 14px;opacity:1}
.search-toggle{
  width:42px;height:42px;border:0;background:transparent;color:var(--brand-700);
  display:grid;place-items:center;border-radius:10px;cursor:pointer;
}
.search-toggle:hover{background:rgba(22,83,126,.09)}
.search-toggle svg{width:19px;height:19px}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;height:44px;padding:0 20px;
  border-radius:12px;background:var(--accent);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 12px 24px -14px rgba(228,99,58,.95);
  transition:background-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-cta:hover{background:#d4552f;transform:translateY(-2px);box-shadow:0 16px 30px -14px rgba(228,99,58,.9)}
.nav-cta:active{transform:translateY(-1px)}
.burger{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:rgba(255,255,255,.75);color:var(--brand-900);cursor:pointer;place-items:center;
}
.burger svg{width:22px;height:22px}
.burger:hover{background:#fff;border-color:var(--brand-100)}

/* ============ 抽屉 ============ */
.drawer-mask{
  position:fixed;inset:0;z-index:80;background:rgba(14,32,46,.45);
  opacity:0;visibility:hidden;transition:opacity .25s var(--ease),visibility .25s var(--ease);
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:90;width:84vw;max-width:360px;
  background:#fff;padding:22px;display:flex;flex-direction:column;gap:18px;overflow-y:auto;
  transform:translateX(102%);transition:transform .28s var(--ease);
  box-shadow:-24px 0 60px -30px rgba(14,32,46,.55);
}
.drawer.open{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;
  font-size:22px;line-height:1;color:var(--brand-900);cursor:pointer;
}
.drawer-close:hover{background:var(--brand-100);border-color:var(--brand-100)}
.drawer-links{display:grid;gap:6px}
.drawer-links a{
  padding:14px 16px;border-radius:12px;font-size:16px;font-weight:500;color:var(--brand-900);
  border:1px solid var(--line);
}
.drawer-links a:hover{background:var(--brand-100);border-color:var(--brand-100);color:var(--brand-700)}
.drawer-links a.active{background:var(--brand-100);border-color:var(--brand-100);color:var(--brand-700);font-weight:600}
.drawer-search input{
  width:100%;height:44px;border-radius:12px;border:1px solid #DCE4EB;padding:0 14px;font-size:16px;outline:none;
}
.drawer-search input:focus{border-color:var(--brand-700);box-shadow:0 0 0 3px rgba(22,83,126,.14)}
.drawer-cta{width:100%}

/* ============ 按钮 / 标签 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:12px;border:1px solid transparent;
  font-size:15.5px;font-weight:600;cursor:pointer;
  transition:background-color .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 16px 30px -18px rgba(228,99,58,.98)}
.btn-primary:hover{background:#d4552f;transform:translateY(-2px);box-shadow:0 20px 36px -18px rgba(228,99,58,.95)}
.btn-primary:active{transform:translateY(0)}
.btn-primary[disabled]{opacity:.4;cursor:not-allowed;transform:none}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--brand-900)}
.btn-ghost:hover{background:var(--brand-100);border-color:var(--brand-100);color:var(--brand-700);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-700);
}
.btn-text .arw{transition:transform .22s var(--ease)}
.btn-text:hover{color:var(--accent)}
.btn-text:hover .arw{transform:translateX(4px)}
.pill{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  background:var(--brand-100);color:var(--brand-700);font-size:12px;font-weight:600;white-space:nowrap;
}
.pill.mint{background:rgba(18,165,148,.13);color:var(--mint)}
.pill.accent{background:var(--accent-soft);color:var(--accent)}
.pill.warn{background:rgba(201,120,26,.13);color:var(--warn)}
.pill.solid{background:rgba(255,255,255,.92);color:var(--brand-700);box-shadow:0 6px 16px -10px rgba(14,58,86,.6)}

/* ============ 首屏 Banner ============ */
.cat-hero{
  position:relative;padding:158px 0 132px;
  background-image:
    linear-gradient(104deg,rgba(255,255,255,.95) 0%,rgba(255,255,255,.82) 44%,rgba(255,255,255,.52) 100%),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.cat-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:120px;
  background:linear-gradient(180deg,rgba(246,248,250,0) 0%,var(--bg) 88%);
  pointer-events:none;
}
.crumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:14px;color:rgba(74,90,103,.92);margin-bottom:20px}
.crumb a{color:var(--brand-700)}
.crumb a:hover{color:var(--accent)}
.crumb .sep{color:#B9C6D1}
.crumb .now{color:var(--ink-2)}
.cat-hero h1{
  font-size:44px;font-weight:800;line-height:1.2;letter-spacing:-.4px;max-width:820px;
}
.hero-lead{margin-top:16px;max-width:640px;font-size:17px;color:var(--ink-2)}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}

/* ============ 数据带 ============ */
.metrics-wrap{position:relative;z-index:5;margin-top:-72px}
.metrics{
  display:grid;grid-template-columns:repeat(3,1fr);
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-xxl);
  box-shadow:var(--shadow-2);overflow:hidden;
}
.metric{padding:30px 28px;border-right:1px solid var(--line)}
.metric:last-child{border-right:0}
.metric .num{
  display:flex;align-items:baseline;gap:6px;
  font-family:var(--num);font-size:30px;font-weight:700;color:var(--brand-700);line-height:1.1;
}
.metric .num small{font-size:14px;font-weight:600;color:var(--brand-500)}
.metric .label{margin-top:8px;font-size:14px;color:rgba(74,90,103,.86)}

/* ============ 通用板块 ============ */
.section{padding:96px 0}
.section.tint{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:740px;margin-bottom:40px}
.sec-head h2{position:relative;padding-left:18px;font-size:30px;line-height:1.3}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:3px;background:var(--brand-700);
}
.sec-head p{margin-top:14px;font-size:16px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head.center h2{padding-left:0}
.sec-head.center h2::before{display:none}

/* ============ 交错图文 ============ */
.alt-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.alt-row + .alt-row{margin-top:76px}
.alt-row.reverse .alt-media{order:2}
.alt-media{
  position:relative;border-radius:16px;overflow:hidden;aspect-ratio:4/3;
  background:#E9EFF4;box-shadow:var(--shadow-1);
}
.alt-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.alt-media:hover img{transform:scale(1.04)}
.alt-media .pill{position:absolute;left:16px;top:16px}
.alt-copy h3{font-size:20px;font-weight:600;margin-bottom:12px}
.alt-copy > p{font-size:16px}
.alt-list{margin-top:18px;display:grid;gap:11px}
.alt-list li{position:relative;padding-left:22px;font-size:15.5px;color:var(--ink-2)}
.alt-list li::before{
  content:"";position:absolute;left:5px;top:.68em;width:6px;height:6px;border-radius:1.5px;background:var(--brand-700);
}
.alt-copy .btn-text{margin-top:20px}

/* ============ 时段清单 ============ */
.slot-list{display:grid;gap:12px}
.slot-row{
  display:grid;grid-template-columns:170px 1fr auto;gap:22px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-xl);
  padding:20px 26px;box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.slot-row:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--brand-100)}
.slot-row:hover h4{color:var(--brand-700)}
.slot-time{font-family:var(--num);font-size:17px;font-weight:700;color:var(--brand-700)}
.slot-row h4{font-size:16px;font-weight:600;transition:color .22s var(--ease)}
.slot-row p{margin-top:4px;font-size:14px;color:rgba(74,90,103,.88)}
.slot-price{font-size:15px;font-weight:600;color:var(--accent);white-space:nowrap}

/* ============ FAQ ============ */
.faq{display:grid;gap:12px;max-width:880px;margin:0 auto}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-xl);
  box-shadow:var(--shadow-1);overflow:hidden;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-item:hover{border-color:var(--brand-100);box-shadow:var(--shadow-2)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;border:0;background:transparent;text-align:left;cursor:pointer;
  font-size:15px;font-weight:600;color:var(--ink);
}
.faq-q .ico{
  width:22px;height:22px;flex:none;color:var(--brand-700);
  transition:transform .25s var(--ease);
}
.faq-item.open .faq-q .ico{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease)}
.faq-a p{padding:0 24px 22px;font-size:14px;line-height:1.8;color:var(--ink-2)}

/* ============ CTA 带 ============ */
.cta-band{
  display:grid;grid-template-columns:5fr 7fr;gap:40px;align-items:center;
  background:var(--brand-100);border-radius:20px;padding:46px 44px;
}
.cta-band h2{font-size:26px;line-height:1.35}
.cta-band .sub{margin-top:12px;font-size:15.5px;color:var(--ink-2)}
.cta-form{display:grid;grid-template-columns:1fr 1fr auto;gap:12px;align-items:end}
.field{display:grid;gap:8px}
.field label{font-size:14px;font-weight:500;color:var(--ink)}
.field input,.field select{
  height:48px;border-radius:12px;border:1px solid #DCE4EB;background:#fff;
  padding:0 14px;font-size:15px;outline:none;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field input:focus,.field select:focus{border-color:var(--brand-700);box-shadow:0 0 0 3px rgba(22,83,126,.14)}
.form-note{grid-column:1/-1;font-size:12px;line-height:1.6;color:rgba(74,90,103,.82)}
.form-tip{
  grid-column:1/-1;display:none;font-size:13px;font-weight:600;color:var(--mint);
  background:rgba(18,165,148,.12);border-radius:10px;padding:10px 14px;
}
.form-tip.show{display:block}

/* ============ 回到顶部 ============ */
.to-top{
  position:fixed;right:24px;bottom:24px;width:44px;height:44px;border-radius:50%;
  border:1px solid var(--line);background:#fff;color:var(--brand-700);
  display:grid;place-items:center;cursor:pointer;z-index:70;
  opacity:0;visibility:hidden;box-shadow:var(--shadow-1);
  transition:opacity .25s var(--ease),visibility .25s var(--ease),background-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{background:var(--accent);color:#fff;border-color:var(--accent);transform:translateY(-3px)}
.to-top svg{width:20px;height:20px}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);padding:72px 0 28px;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:44px}
.site-footer .logo-text{color:#fff;text-shadow:none}
.site-footer .logo-text em{color:rgba(255,255,255,.72)}
.foot-brand p{margin-top:16px;font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.72);max-width:340px}
.foot-contact{margin-top:20px;display:grid;gap:10px}
.foot-contact span{display:flex;align-items:center;gap:9px;font-size:14px;color:rgba(255,255,255,.72)}
.foot-contact svg{width:17px;height:17px;flex:none;color:var(--brand-500)}
.foot-col h3{font-size:14px;font-weight:600;color:rgba(255,255,255,.92);margin-bottom:16px}
.foot-col ul{display:grid;gap:11px}
.foot-col a{font-size:14px;color:rgba(255,255,255,.72);display:inline-block}
.foot-col a:hover{color:#fff;transform:translateX(-2px)}
.foot-qr{
  margin-top:16px;width:96px;height:96px;border-radius:14px;
  border:1px dashed rgba(255,255,255,.32);display:grid;place-items:center;
  font-size:12px;color:rgba(255,255,255,.55);letter-spacing:1px;
}
.foot-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.16);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ============ 响应式 ============ */
@media (max-width:1100px){
  .nav-links{display:none}
  .burger{display:grid}
  .nav-search{display:none}
  .alt-row{gap:40px}
}
@media (max-width:1024px){
  .container{padding:0 20px}
  .cat-hero{padding:140px 0 116px}
  .cat-hero h1{font-size:36px}
  .section{padding:76px 0}
  .sec-head h2{font-size:27px}
  .slot-row{grid-template-columns:150px 1fr auto;gap:18px;padding:18px 22px}
  .cta-band{grid-template-columns:1fr;padding:38px 32px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:768px){
  .site-header{height:64px}
  .logo-text{font-size:17px}
  .cat-hero{padding:122px 0 104px}
  .cat-hero h1{font-size:30px}
  .hero-lead{font-size:16px}
  .hero-actions .btn{flex:1 1 200px}
  .metrics-wrap{margin-top:-56px}
  .metrics{grid-template-columns:1fr}
  .metric{border-right:0;border-bottom:1px solid var(--line);padding:22px 24px}
  .metric:last-child{border-bottom:0}
  .section{padding:56px 0}
  .sec-head{margin-bottom:28px}
  .sec-head h2{font-size:24px}
  .alt-row{grid-template-columns:1fr;gap:24px}
  .alt-row.reverse .alt-media{order:0}
  .alt-row + .alt-row{margin-top:52px}
  .slot-row{grid-template-columns:1fr;gap:10px;align-items:start}
  .slot-price{justify-self:start}
  .faq-q{padding:18px 18px;font-size:15px}
  .faq-a p{padding:0 18px 18px}
  .cta-band{padding:30px 22px;border-radius:18px}
  .cta-form{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:32px}
  .foot-bottom{flex-direction:column;gap:8px}
  .to-top{right:16px;bottom:16px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .cat-hero h1{font-size:26px}
  .hero-tags{gap:8px}
  .metric .num{font-size:26px}
  .nav-cta{padding:0 16px;font-size:14px;height:42px}
}

/* roulang page: category3 */
:root{
  --brand-900:#0E3A56;
  --brand-700:#16537E;
  --brand-500:#2A7FA8;
  --brand-100:#E3EEF5;
  --accent:#E4633A;
  --accent-dark:#cf5330;
  --accent-soft:#FDF0EA;
  --mint:#12A594;
  --warn:#C9781A;
  --bg:#F6F8FA;
  --surface:#FFFFFF;
  --ink:#14202A;
  --ink-2:#4A5A67;
  --line:#E4EAF0;
  --radius:18px;
  --radius-lg:22px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(16,42,67,.06), 0 10px 28px -14px rgba(16,42,67,.16);
  --shadow-2:0 2px 6px rgba(16,42,67,.08), 0 22px 44px -18px rgba(16,42,67,.26);
  --t:220ms cubic-bezier(.2,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:.01em;}
p{margin:0;}
:focus-visible{outline:3px solid rgba(42,127,168,.35);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ============ 导航 ============ */
.site-header{
  position:absolute;
  top:0;left:0;right:0;
  z-index:60;
  height:72px;
  display:flex;
  align-items:center;
  background:rgba(255,255,255,.55);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.5);
  box-shadow:var(--shadow-1);
  transition:height var(--t),background var(--t),border-color var(--t),box-shadow var(--t);
}
.site-header.is-stuck{
  position:fixed;
  height:64px;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid var(--line);
  box-shadow:0 10px 24px -18px rgba(16,42,67,.4);
}
.nav-inner{
  width:100%;
  display:flex;
  align-items:center;
  gap:28px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.logo-mark{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:11px;
  background:linear-gradient(140deg,var(--brand-700),var(--brand-500));
  color:#fff;
  font-weight:800;
  font-size:18px;
  letter-spacing:.02em;
  box-shadow:0 8px 18px -10px rgba(22,83,126,.9);
}
.logo-text{
  display:flex;
  flex-direction:column;
  line-height:1.1;
  font-weight:800;
  font-size:17px;
  color:var(--brand-900);
}
.logo-text em{
  font-style:normal;
  font-size:11.5px;
  font-weight:600;
  letter-spacing:.16em;
  color:var(--brand-500);
}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  flex:1;
}
.nav-link{
  position:relative;
  padding:9px 14px;
  font-size:15.5px;
  font-weight:500;
  color:var(--brand-900);
  border-radius:10px;
  transition:color var(--t),background var(--t);
}
.nav-link:hover{color:var(--brand-700);background:rgba(227,238,245,.75);}
.nav-link.active{font-weight:600;color:var(--brand-700);}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--brand-700);
}
.nav-actions{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:auto;
}
.nav-search{
  display:flex;
  align-items:center;
  gap:6px;
  height:44px;
  padding:0 6px 0 12px;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  background:rgba(255,255,255,.8);
  transition:border-color var(--t),box-shadow var(--t);
}
.nav-search:focus-within{
  border-color:var(--brand-700);
  box-shadow:0 0 0 3px rgba(22,83,126,.14);
}
.nav-search input{
  width:150px;
  height:36px;
  border:0;
  background:transparent;
  font-size:14.5px;
  outline:none;
  transition:width var(--t);
}
.nav-search.is-open input{width:230px;}
.nav-search input::placeholder{color:rgba(74,90,103,.6);}
.search-toggle{
  width:34px;height:34px;
  display:grid;place-items:center;
  border:0;border-radius:9px;
  background:var(--brand-100);
  color:var(--brand-700);
  cursor:pointer;
  transition:background var(--t),color var(--t);
}
.search-toggle:hover{background:var(--brand-700);color:#fff;}
.search-toggle svg{width:18px;height:18px;}
.nav-cta{
  display:inline-flex;
  align-items:center;
  height:44px;
  padding:0 22px;
  border-radius:var(--radius-sm);
  background:var(--accent);
  color:#fff;
  font-weight:600;
  font-size:15px;
  white-space:nowrap;
  box-shadow:0 10px 22px -14px rgba(228,99,58,.95);
  transition:background var(--t),transform var(--t),box-shadow var(--t);
}
.nav-cta:hover{background:var(--accent-dark);transform:translateY(-2px);box-shadow:0 16px 28px -16px rgba(228,99,58,.95);}
.nav-cta:active{transform:translateY(-1px);}
.burger{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  background:rgba(255,255,255,.85);
  color:var(--brand-900);
  cursor:pointer;
  place-items:center;
}
.burger svg{width:22px;height:22px;}
.drawer-extra{display:none;}
.nav-mask{
  position:fixed;
  inset:0;
  z-index:70;
  background:rgba(14,32,46,.45);
  opacity:0;
  visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;
}
.nav-mask.is-open{opacity:1;visibility:visible;}

/* ============ 通用按钮 / 标签 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border:1px solid transparent;
  border-radius:var(--radius-sm);
  font-weight:600;
  font-size:15.5px;
  cursor:pointer;
  transition:background var(--t),color var(--t),transform var(--t),box-shadow var(--t),border-color var(--t);
}
.btn-primary{
  background:var(--accent);
  color:#fff;
  box-shadow:0 12px 24px -14px rgba(228,99,58,.95);
}
.btn-primary:hover{background:var(--accent-dark);transform:translateY(-2px);box-shadow:0 18px 30px -16px rgba(228,99,58,.95);}
.btn-primary:active{transform:translateY(-1px);}
.btn-ghost{
  background:#fff;
  color:var(--brand-700);
  border-color:var(--line);
}
.btn-ghost:hover{background:var(--brand-100);border-color:var(--brand-100);}
.btn-block{width:100%;}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-weight:600;
  font-size:14.5px;
  color:var(--brand-700);
}
.text-link::after{content:"→";transition:transform var(--t);}
.text-link:hover::after{transform:translateX(4px);}
.pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:26px;
  padding:0 12px;
  border-radius:var(--radius-pill);
  background:var(--brand-100);
  color:var(--brand-700);
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.02em;
}
.pill-accent{background:var(--accent-soft);color:var(--accent);}
.pill-mint{background:rgba(18,165,148,.12);color:var(--mint);}

/* ============ 页头 ============ */
.page-hero{
  position:relative;
  padding:132px 0 68px;
  background-image:
    linear-gradient(180deg,rgba(246,248,250,.94),rgba(246,248,250,.97)),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-120px;top:-80px;
  width:420px;height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(42,127,168,.14),transparent 68%);
  pointer-events:none;
}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:rgba(74,90,103,.8);
  margin-bottom:18px;
}
.breadcrumb a{transition:color var(--t);}
.breadcrumb a:hover{color:var(--brand-700);}
.breadcrumb .sep{color:rgba(74,90,103,.45);}
.breadcrumb .current{color:var(--brand-700);font-weight:600;}
.page-hero h1{
  max-width:860px;
  font-size:44px;
  line-height:1.22;
  font-weight:800;
  color:var(--brand-900);
}
.hero-line{
  margin-top:16px;
  font-size:17.5px;
  color:var(--ink-2);
  max-width:640px;
}
.hero-pills{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:26px;
}

/* ============ 板块 ============ */
.section{padding:96px 0;}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:720px;margin-bottom:36px;}
.section-head h2{
  position:relative;
  padding-left:16px;
  font-size:30px;
  font-weight:700;
  line-height:1.3;
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;top:.22em;
  width:4px;height:1.05em;
  border-radius:4px;
  background:var(--brand-700);
}
.section-head p{margin-top:12px;font-size:16px;color:var(--ink-2);}
.section-head.row{
  max-width:none;
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
}

/* ============ 步骤条 ============ */
.steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:26px;
  counter-reset:step;
}
.step{
  position:relative;
  padding:26px 22px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--brand-100);}
.step-num{
  width:44px;height:44px;
  display:grid;place-items:center;
  border-radius:50%;
  background:var(--brand-700);
  color:#fff;
  font-weight:700;
  font-size:17px;
  font-family:"Barlow","Inter",sans-serif;
  box-shadow:0 10px 20px -12px rgba(22,83,126,.9);
}
.step:not(:last-child)::after{
  content:"";
  position:absolute;
  top:48px;
  right:-20px;
  width:14px;height:14px;
  border-top:2px solid #cfdde8;
  border-right:2px solid #cfdde8;
  transform:rotate(45deg);
}
.step h3{margin-top:16px;font-size:19px;font-weight:600;}
.step p{margin-top:8px;font-size:14.8px;color:var(--ink-2);}

/* ============ 课程网格 2x3 ============ */
.course-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.course-card{
  display:flex;
  flex-direction:column;
  padding:24px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.course-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--brand-100);}
.course-card:hover .course-title{color:var(--brand-700);}
.card-icon{
  width:46px;height:46px;
  display:grid;place-items:center;
  border-radius:14px;
  background:var(--brand-100);
  color:var(--brand-700);
}
.card-icon svg{width:24px;height:24px;}
.course-title{
  margin-top:18px;
  font-size:20px;
  font-weight:600;
  transition:color var(--t);
}
.course-desc{
  margin-top:10px;
  font-size:15px;
  line-height:1.8;
  color:var(--ink-2);
  flex:1;
}
.course-meta{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:16px;
}
.course-foot{
  margin-top:18px;
  padding-top:16px;
  border-top:1px dashed var(--line);
}

/* ============ 服务范围 ============ */
.scope{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:40px;
  align-items:center;
}
.scope-media{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-2);
  aspect-ratio:4/3;
}
.scope-media img{width:100%;height:100%;object-fit:cover;}
.scope-media figcaption{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:34px 22px 16px;
  font-size:13px;
  color:rgba(255,255,255,.92);
  background:linear-gradient(180deg,rgba(14,58,86,0),rgba(14,58,86,.82));
}
.scope-body h2{
  position:relative;
  padding-left:16px;
  font-size:30px;
  font-weight:700;
}
.scope-body h2::before{
  content:"";
  position:absolute;left:0;top:.22em;
  width:4px;height:1.05em;border-radius:4px;background:var(--brand-700);
}
.scope-body > p{margin-top:14px;}
.tag-wall{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:24px;
}
.tag{
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 18px;
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  background:#fff;
  font-size:14.5px;
  color:var(--ink);
  transition:border-color var(--t),background var(--t),color var(--t),transform var(--t);
}
.tag:hover{background:var(--brand-100);border-color:var(--brand-100);color:var(--brand-700);transform:translateY(-2px);}
.scope-stats{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:18px;
  margin-top:30px;
  padding-top:26px;
  border-top:1px solid var(--line);
}
.stat-num{
  font-family:"Barlow","Inter",sans-serif;
  font-size:30px;
  font-weight:700;
  color:var(--brand-900);
  line-height:1.1;
}
.stat-label{margin-top:6px;font-size:13.5px;color:rgba(74,90,103,.72);}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:900px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:14px;
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:border-color var(--t),box-shadow var(--t);
}
.faq-item:hover{border-color:var(--brand-100);}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:18px 22px;
  font-size:15.5px;
  font-weight:600;
  color:var(--ink);
  cursor:pointer;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  flex-shrink:0;
  font-size:22px;
  line-height:1;
  color:var(--brand-700);
  transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-answer{
  padding:0 22px 20px;
  font-size:14.8px;
  line-height:1.85;
  color:var(--ink-2);
  max-width:760px;
}

/* ============ CTA 带 ============ */
.cta-band{
  background:var(--brand-100);
  border-radius:20px;
  padding:44px;
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:40px;
  align-items:center;
}
.cta-copy h2{font-size:28px;font-weight:700;line-height:1.32;}
.cta-copy p{margin-top:12px;font-size:15.5px;}
.cta-form{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
  background:#fff;
  border:1px solid rgba(255,255,255,.9);
  border-radius:var(--radius);
  padding:22px;
  box-shadow:var(--shadow-1);
}
.field{display:flex;flex-direction:column;gap:8px;}
.field label{font-size:13.5px;font-weight:500;color:var(--ink);}
.field input,.field select{
  height:48px;
  padding:0 14px;
  border:1px solid #DCE4EB;
  border-radius:var(--radius-sm);
  background:#fff;
  font-size:15px;
  color:var(--ink);
  outline:none;
  transition:border-color var(--t),box-shadow var(--t);
}
.field input:focus,.field select:focus{
  border-color:var(--brand-700);
  box-shadow:0 0 0 3px rgba(22,83,126,.14);
}
.cta-form .form-submit{grid-column:1 / -1;}
.form-note{
  grid-column:1 / -1;
  font-size:12.5px;
  color:rgba(74,90,103,.72);
}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:96px;
  background:var(--brand-900);
  color:rgba(255,255,255,.72);
  padding:64px 0 26px;
  font-size:14px;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
}
.foot-brand .logo{margin-bottom:16px;}
.foot-brand .logo-mark{background:linear-gradient(140deg,var(--brand-500),var(--brand-700));}
.foot-brand .logo-text{color:#fff;}
.foot-brand .logo-text em{color:rgba(255,255,255,.7);}
.foot-brand p{max-width:340px;line-height:1.85;color:rgba(255,255,255,.7);}
.foot-contact{margin-top:18px;display:grid;gap:10px;}
.foot-contact span{display:flex;align-items:center;gap:8px;color:rgba(255,255,255,.72);}
.foot-contact svg{width:17px;height:17px;flex-shrink:0;opacity:.85;}
.foot-col h3{
  font-size:14px;
  font-weight:600;
  color:rgba(255,255,255,.9);
  margin-bottom:16px;
}
.foot-col li{margin-bottom:10px;}
.foot-col a{
  color:rgba(255,255,255,.72);
  transition:color var(--t),transform var(--t);
  display:inline-block;
}
.foot-col a:hover{color:#fff;transform:translateX(2px);}
.foot-qr{
  margin-top:16px;
  width:104px;height:104px;
  border-radius:12px;
  border:1px dashed rgba(255,255,255,.3);
  display:grid;place-items:center;
  font-size:12.5px;
  color:rgba(255,255,255,.6);
}
.foot-bottom{
  margin-top:44px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.16);
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  font-size:13px;
  color:rgba(255,255,255,.6);
}

/* ============ 回到顶部 ============ */
.to-top{
  position:fixed;
  right:22px;bottom:24px;
  width:44px;height:44px;
  display:grid;place-items:center;
  border:0;border-radius:50%;
  background:var(--brand-700);
  color:#fff;
  cursor:pointer;
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity var(--t),transform var(--t),background var(--t),visibility var(--t);
  z-index:55;
  box-shadow:var(--shadow-2);
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--accent);}
.to-top svg{width:20px;height:20px;}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .container{padding:0 20px;}
  .page-hero{padding:118px 0 56px;}
  .page-hero h1{font-size:36px;}
  .section{padding:72px 0;}
  .section-head h2,.scope-body h2{font-size:26px;}
  .steps{grid-template-columns:repeat(2,1fr);gap:20px;}
  .step:not(:last-child)::after{display:none;}
  .course-grid{grid-template-columns:repeat(2,1fr);}
  .scope{grid-template-columns:1fr;gap:28px;}
  .cta-band{grid-template-columns:1fr;gap:26px;padding:32px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .nav-links{
    position:fixed;
    top:0;right:0;
    height:100vh;
    width:84vw;
    max-width:360px;
    padding:88px 24px 32px;
    background:#fff;
    box-shadow:-20px 0 50px -24px rgba(16,42,67,.45);
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    transform:translateX(105%);
    transition:transform .28s cubic-bezier(.2,.7,.3,1);
    z-index:80;
    overflow-y:auto;
    border-left:1px solid var(--line);
  }
  .nav-links.is-open{transform:translateX(0);}
  .nav-link{padding:14px 12px;font-size:16px;border-radius:12px;}
  .nav-link.active::after{left:12px;right:auto;width:22px;bottom:8px;}
  .nav-search{display:none;}
  .nav-cta{display:none;}
  .burger{display:grid;}
  .drawer-extra{
    display:block;
    margin-top:22px;
    padding-top:22px;
    border-top:1px solid var(--line);
  }
  .drawer-search{
    display:flex;
    align-items:center;
    height:46px;
    padding:0 8px 0 14px;
    border:1px solid var(--line);
    border-radius:var(--radius-sm);
    margin-bottom:14px;
  }
  .drawer-search input{
    flex:1;
    height:40px;
    border:0;
    outline:none;
    background:transparent;
    font-size:16px;
  }
  .drawer-search button{
    width:36px;height:36px;
    display:grid;place-items:center;
    border:0;border-radius:9px;
    background:var(--brand-100);
    color:var(--brand-700);
    cursor:pointer;
  }
  .drawer-search svg{width:18px;height:18px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .page-hero{padding:106px 0 46px;}
  .page-hero h1{font-size:30px;}
  .hero-line{font-size:16px;}
  .section{padding:60px 0;}
  .section-head{margin-bottom:26px;}
  .section-head.row{flex-direction:column;align-items:flex-start;gap:14px;}
  .section-head h2,.scope-body h2{font-size:24px;}
  .course-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .step{padding:22px 18px;}
  .cta-form{grid-template-columns:1fr;padding:18px;}
  .scope-stats{grid-template-columns:1fr 1fr;}
  .foot-grid{grid-template-columns:1fr;gap:28px;}
  .site-footer{margin-top:64px;padding:48px 0 22px;}
  .to-top{right:16px;bottom:18px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .page-hero h1{font-size:27px;}
  .hero-pills{gap:8px;}
  .scope-stats{grid-template-columns:1fr;}
  .cta-band{padding:24px 18px;}
  .cta-copy h2{font-size:22px;}
  .foot-bottom{flex-direction:column;}
}