/* roulang page: index */
:root{
  --bg:#F5F8FC;
  --bg-alt:#EDF3FA;
  --surface:#FFFFFF;
  --ink:#0F2233;
  --ink-2:#3D5567;
  --muted:#7A8FA3;
  --line:#E2EAF3;
  --primary:#F0562F;
  --primary-ink:#C93F1C;
  --blue:#12508F;
  --blue-soft:#E4EEFA;
  --mint:#12A594;
  --mint-soft:#E1F5F1;
  --amber:#F5A524;
  --danger:#D64545;
  --radius-s:10px;
  --radius:16px;
  --radius-l:20px;
  --radius-xl:24px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(15,34,51,.06);
  --shadow-2:0 10px 30px rgba(15,34,51,.08);
  --shadow-3:0 18px 48px rgba(15,34,51,.12);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
  --sec-pad:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.8;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote{margin:0;padding:0;}
ul,ol{list-style:none;}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;transition:color .18s ease,background .18s ease,border-color .18s ease;}
button,input{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
svg{flex-shrink:0;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:8px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}
.section{padding:var(--sec-pad) 0;}
.section--alt{background:var(--bg-alt);}
.section--plain{background:var(--surface);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.section-title{position:relative;padding-left:16px;font-size:clamp(22px,2.4vw,30px);font-weight:700;color:var(--ink);line-height:1.36;letter-spacing:.2px;}
.section-title::before{content:"";position:absolute;left:0;top:.26em;width:4px;height:1.08em;background:var(--primary);border-radius:2px;}
.section-desc{margin-top:10px;font-size:15px;color:var(--muted);max-width:640px;line-height:1.7;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:15px;font-weight:600;flex-shrink:0;white-space:nowrap;}
.link-arrow svg{transition:transform .18s ease;}
.link-arrow:hover{color:var(--primary-ink);}
.link-arrow:hover svg{transform:translateX(3px);}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:12px;font-size:15px;font-weight:600;border:1px solid transparent;transition:background .18s ease,color .18s ease,box-shadow .18s ease,transform .18s ease,border-color .18s ease;white-space:nowrap;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(240,86,47,.22);}
.btn-primary:hover{background:var(--primary-ink);transform:translateY(-1px);box-shadow:0 10px 24px rgba(240,86,47,.3);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 10px rgba(240,86,47,.22);}
.btn-outline{background:var(--surface);border-color:var(--blue);color:var(--blue);}
.btn-outline:hover{background:var(--blue-soft);border-color:var(--blue);}
.btn-outline:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:var(--ink);padding:0 6px;}
.btn-ghost:hover{color:var(--primary);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px;}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:70;background:var(--surface);border-bottom:1px solid var(--line);transition:box-shadow .2s ease;}
.site-header.is-scrolled{box-shadow:var(--shadow-1);}
.nav-wrap{display:flex;align-items:center;gap:24px;height:68px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{width:30px;height:30px;color:var(--primary);}
.logo-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.3px;}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:6px;}
.main-nav a{position:relative;padding:8px 13px;font-size:15px;color:var(--ink-2);border-radius:8px;}
.main-nav a:hover{color:var(--blue);background:var(--bg-alt);}
.main-nav a.active{color:var(--blue);font-weight:600;}
.main-nav a.active::after{content:"";position:absolute;left:13px;right:13px;bottom:-1px;height:2px;background:var(--blue);border-radius:2px;}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto;}
.command-search{position:relative;display:flex;align-items:center;gap:8px;height:40px;width:228px;padding:0 12px;background:var(--bg-alt);border:1px solid transparent;border-radius:var(--radius-pill);transition:background .18s ease,border-color .18s ease,box-shadow .18s ease;}
.command-search:focus-within{background:var(--surface);border-color:var(--primary);box-shadow:0 0 0 3px rgba(240,86,47,.12);}
.cs-icon{width:18px;height:18px;color:var(--muted);}
.command-search input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14px;color:var(--ink);}
.command-search input::placeholder{color:var(--muted);}
.kbd{font-family:var(--font-num);font-size:11px;line-height:1.5;color:var(--muted);background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:1px 5px;}
.search-panel{position:absolute;top:calc(100% + 10px);left:0;width:330px;padding:8px;background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-2);display:none;}
.command-search.is-open .search-panel{display:block;}
.sp-row{display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:10px;transition:background .16s ease;}
.sp-row:hover{background:var(--bg-alt);}
.sp-ico{width:30px;height:30px;border-radius:9px;background:var(--blue-soft);color:var(--blue);display:grid;place-items:center;flex-shrink:0;}
.sp-ico svg{width:16px;height:16px;}
.sp-txt{display:flex;flex-direction:column;min-width:0;}
.sp-txt b{font-size:14px;color:var(--ink);font-weight:600;line-height:1.5;}
.sp-txt em{font-style:normal;font-size:12px;color:var(--muted);line-height:1.5;}
.icon-btn{width:40px;height:40px;display:grid;place-items:center;border:1px solid var(--line);background:var(--surface);border-radius:12px;color:var(--ink-2);transition:border-color .18s ease,color .18s ease,background .18s ease;}
.icon-btn svg{width:18px;height:18px;}
.icon-btn:hover{border-color:var(--blue);color:var(--blue);background:var(--blue-soft);}
.hamburger{display:none;width:40px;height:40px;flex-direction:column;justify-content:center;align-items:center;gap:5px;border:1px solid var(--line);border-radius:12px;background:var(--surface);}
.hamburger span{display:block;width:18px;height:1.5px;background:var(--ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.hamburger.is-open span:nth-child(1){transform:translateY(6.5px) rotate(45deg);}
.hamburger.is-open span:nth-child(2){opacity:0;}
.hamburger.is-open span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg);}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(15,34,51,.42);opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease;z-index:80;}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.mobile-drawer{position:fixed;top:0;right:0;bottom:0;width:min(400px,88vw);background:var(--surface);z-index:90;padding:22px;transform:translateX(102%);transition:transform .28s cubic-bezier(.4,0,.2,1);overflow-y:auto;box-shadow:var(--shadow-3);}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line);}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);display:grid;place-items:center;color:var(--ink-2);font-size:20px;line-height:1;}
.drawer-close:hover{color:var(--primary);border-color:var(--primary);}
.drawer-search{width:100%;margin:20px 0 8px;}
.drawer-nav{display:flex;flex-direction:column;margin-top:12px;}
.drawer-nav a{padding:14px 4px;font-size:16px;color:var(--ink-2);border-bottom:1px solid var(--line);}
.drawer-nav a.active{color:var(--blue);font-weight:600;}
.drawer-nav a:hover{color:var(--primary);}
.drawer-cta{width:100%;margin-top:24px;}

/* ---------- Hero ---------- */
.hero{position:relative;padding:64px 0 84px;background:linear-gradient(180deg,var(--blue-soft) 0%,var(--bg) 66%);overflow:hidden;}
.hero::before{content:"";position:absolute;top:-140px;right:-120px;width:420px;height:420px;border-radius:50%;background:var(--blue-soft);opacity:.75;pointer-events:none;}
.hero-copy{position:relative;z-index:2;padding-right:16px;}
.hero-tag{display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:var(--radius-pill);background:var(--surface);border:1px solid var(--line);color:var(--blue);font-size:13px;font-weight:600;box-shadow:var(--shadow-1);}
.hero-tag i{width:6px;height:6px;border-radius:50%;background:var(--mint);display:block;}
.hero h1{margin-top:22px;font-size:clamp(30px,4vw,46px);line-height:1.24;font-weight:750;color:var(--ink);letter-spacing:-.2px;}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.75;color:var(--ink-2);max-width:520px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-metrics{display:flex;flex-wrap:wrap;gap:12px 36px;margin-top:38px;padding-top:26px;border-top:1px solid rgba(18,80,143,.14);}
.hero-metrics li{display:flex;flex-direction:column;gap:2px;}
.hero-metrics b{font-family:var(--font-num);font-size:24px;font-weight:700;color:var(--blue);line-height:1.2;}
.hero-metrics span{font-size:13px;color:var(--muted);}
.hero-visual{position:relative;z-index:2;display:flex;justify-content:flex-end;}
.phone-frame{position:relative;width:100%;max-width:330px;aspect-ratio:9/16;border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow-3);background:var(--blue);}
.phone-frame img{width:100%;height:100%;object-fit:cover;}
.frame-mask{position:absolute;left:0;right:0;height:28%;pointer-events:none;}
.frame-mask.top{top:0;background:linear-gradient(180deg,rgba(15,34,51,.55),rgba(15,34,51,0));}
.frame-mask.bottom{bottom:0;background:linear-gradient(0deg,rgba(15,34,51,.72),rgba(15,34,51,0));}
.frame-caption{position:absolute;left:20px;right:20px;bottom:22px;color:#fff;}
.frame-caption b{display:block;font-size:16px;font-weight:700;line-height:1.5;}
.frame-caption span{font-size:12.5px;opacity:.85;}
.float-card{position:absolute;display:flex;align-items:center;gap:9px;padding:10px 14px;background:var(--surface);border-radius:14px;box-shadow:var(--shadow-2);font-size:13px;color:var(--ink);}
.float-card b{font-family:var(--font-num);font-weight:700;color:var(--primary);}
.float-a{top:56px;left:-18px;}
.float-b{bottom:78px;right:-16px;}
.float-dot{width:28px;height:28px;border-radius:9px;display:grid;place-items:center;background:var(--mint-soft);color:var(--mint);}
.float-dot svg{width:15px;height:15px;}

/* ---------- 数据条 ---------- */
.stat-bar{padding:0 0 24px;margin-top:-42px;position:relative;z-index:5;}
.stat-grid{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-l);box-shadow:var(--shadow-2);padding:34px 20px;}
.stat-item{text-align:center;padding:10px 12px;position:relative;}
.stat-item + .stat-item::before{content:"";position:absolute;left:0;top:14%;bottom:14%;width:1px;background:var(--line);}
.stat-item b{display:block;font-family:var(--font-num);font-size:clamp(26px,3vw,34px);font-weight:700;color:var(--ink);line-height:1.2;}
.stat-item b em{font-style:normal;font-size:15px;color:var(--primary);margin-left:2px;}
.stat-item span{display:block;margin-top:6px;font-size:13.5px;color:var(--muted);}

/* ---------- 横滑片段卡 ---------- */
.reel-wrap{position:relative;}
.reel-wrap::after{content:"";position:absolute;top:0;right:-24px;bottom:20px;width:64px;background:linear-gradient(90deg,rgba(245,248,252,0),var(--bg));pointer-events:none;}
.reel-track{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding:6px 4px 22px;scrollbar-width:none;}
.reel-track::-webkit-scrollbar{display:none;}
.reel-card{flex:0 0 226px;scroll-snap-align:start;}
.reel-cover{position:relative;aspect-ratio:9/16;border-radius:var(--radius-l);overflow:hidden;background:var(--blue);box-shadow:var(--shadow-1);}
.reel-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.reel-card:hover .reel-cover img{transform:scale(1.04);}
.reel-cover::after{content:"";position:absolute;inset:auto 0 0 0;height:62%;background:linear-gradient(0deg,rgba(15,34,51,.86),rgba(15,34,51,0));}
.reel-badge{position:absolute;top:14px;left:14px;z-index:2;height:26px;display:inline-flex;align-items:center;padding:0 11px;border-radius:var(--radius-pill);background:rgba(255,255,255,.92);color:var(--blue);font-size:12px;font-weight:600;}
.reel-play{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);z-index:2;width:48px;height:48px;border-radius:50%;background:rgba(255,255,255,.72);display:grid;place-items:center;transition:transform .22s ease,background .22s ease;}
.reel-play svg{width:18px;height:18px;color:var(--primary);margin-left:2px;}
.reel-card:hover .reel-play{transform:translate(-50%,-50%) scale(1.1);background:#fff;}
.reel-info{position:absolute;left:16px;right:16px;bottom:16px;z-index:2;color:#fff;}
.reel-duration{display:inline-flex;align-items:center;gap:5px;height:22px;padding:0 9px;border-radius:var(--radius-pill);background:rgba(15,34,51,.5);font-family:var(--font-num);font-size:11.5px;margin-bottom:8px;}
.reel-info h3{font-size:15px;font-weight:650;line-height:1.5;color:#fff;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.reel-info p{margin-top:6px;font-size:12px;opacity:.82;}

/* ---------- 种草清单 ---------- */
.pick-list{margin-top:8px;}
.pick-item{display:flex;align-items:center;gap:26px;padding:26px 0;border-bottom:1px solid var(--line);transition:background .18s ease;}
.pick-item:first-child{border-top:1px solid var(--line);}
.pick-num{font-family:var(--font-num);font-size:40px;font-weight:700;color:rgba(240,86,47,.32);line-height:1;min-width:66px;}
.pick-thumb{width:148px;aspect-ratio:3/2;border-radius:12px;overflow:hidden;flex-shrink:0;box-shadow:var(--shadow-1);}
.pick-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.pick-item:hover .pick-thumb img{transform:scale(1.05);}
.pick-body{flex:1;min-width:0;}
.pick-body h3{font-size:18px;font-weight:650;color:var(--ink);line-height:1.5;}
.pick-body p{margin-top:6px;font-size:14.5px;color:var(--ink-2);line-height:1.75;}
.pick-check{width:34px;height:34px;border-radius:50%;background:var(--mint);display:grid;place-items:center;flex-shrink:0;}
.pick-check svg{width:17px;height:17px;color:#fff;}
.pick-foot{margin-top:34px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.pick-foot span{font-size:14px;color:var(--muted);}

/* ---------- 口碑条 ---------- */
.quote-track{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding:6px 4px 22px;scrollbar-width:none;}
.quote-track::-webkit-scrollbar{display:none;}
.quote-card{flex:0 0 302px;scroll-snap-align:start;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease;}
.quote-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-3);}
.quote-head{display:flex;align-items:center;gap:12px;}
.avatar{width:40px;height:40px;border-radius:50%;background:var(--bg-alt);color:var(--blue);display:grid;place-items:center;font-size:14px;font-weight:700;flex-shrink:0;}
.quote-name{font-size:14.5px;font-weight:600;color:var(--ink);line-height:1.4;}
.quote-name em{display:block;font-style:normal;font-size:12px;color:var(--muted);font-weight:400;}
.stars{display:flex;gap:2px;margin-top:14px;}
.stars svg{width:14px;height:14px;color:var(--amber);}
.quote-card p{margin-top:12px;font-size:14.5px;line-height:1.8;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.quote-tag{display:inline-flex;align-items:center;height:24px;padding:0 10px;margin-top:14px;border-radius:var(--radius-pill);background:var(--mint-soft);color:#0B7A6D;font-size:12px;font-weight:600;}

/* ---------- CTA 带 ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--blue-soft);border-radius:var(--radius-xl);padding:48px 44px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:30px;}
.cta-band::after{content:"";position:absolute;top:0;right:0;bottom:0;width:44%;background-image:url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;opacity:.2;pointer-events:none;}
.cta-band-text{position:relative;z-index:2;max-width:620px;}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;color:var(--ink);line-height:1.4;}
.cta-band p{margin-top:12px;font-size:15.5px;color:var(--ink-2);}
.cta-band-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- CMS 资讯 ---------- */
.cms-card{display:flex;flex-direction:column;height:100%;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.cms-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-3);border-color:#D3E0EF;}
.cms-badge{align-self:flex-start;display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--radius-pill);background:var(--mint-soft);color:#0B7A6D;font-size:12px;font-weight:600;}
.cms-title{margin-top:16px;font-size:17px;font-weight:650;color:var(--ink);line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.cms-excerpt{margin-top:12px;font-size:14.5px;line-height:1.8;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;flex:1;}
.cms-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:20px;padding-top:16px;border-top:1px solid var(--line);}
.cms-foot time{font-family:var(--font-num);font-size:13px;color:var(--muted);}
.cms-more{font-size:13.5px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:5px;}
.cms-card:hover .cms-more svg{transform:translateX(3px);}
.cms-more svg{width:14px;height:14px;transition:transform .18s ease;}
.cms-empty{grid-column:1 / -1;text-align:center;padding:64px 20px;background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius);}
.cms-empty svg{width:110px;height:110px;color:var(--muted);opacity:.7;margin:0 auto;}
.cms-empty p{margin-top:18px;font-size:15px;color:var(--muted);}
.cms-empty .btn{margin-top:20px;}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;margin:0 auto;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-1);overflow:hidden;}
.faq-item{border-bottom:1px solid var(--line);border-left:3px solid transparent;transition:border-color .2s ease,background .2s ease;}
.faq-item:last-child{border-bottom:0;}
.faq-item[open]{border-left-color:var(--primary);background:#FCFDFF;}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:16px;padding:22px 26px;font-size:17px;font-weight:600;color:var(--ink);line-height:1.6;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-idx{font-family:var(--font-num);font-size:15px;font-weight:700;color:var(--primary);flex-shrink:0;min-width:26px;}
.faq-arrow{margin-left:auto;width:18px;height:18px;color:var(--muted);transition:transform .22s ease,color .22s ease;}
.faq-item[open] .faq-arrow{transform:rotate(180deg);color:var(--primary);}
.faq-answer{padding:0 26px 26px 68px;}
.faq-answer p{max-width:720px;font-size:15.5px;line-height:1.85;color:var(--ink-2);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-alt);border-top:1px solid var(--line);padding:64px 0 0;margin-top:0;}
.footer-grid{padding-bottom:44px;}
.footer-about{margin-top:16px;font-size:14.5px;line-height:1.8;color:var(--ink-2);max-width:320px;}
.footer-social{display:flex;gap:10px;margin-top:20px;}
.footer-social a{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:var(--surface);display:grid;place-items:center;color:var(--ink-2);transition:all .18s ease;}
.footer-social a svg{width:17px;height:17px;}
.footer-social a:hover{border-color:var(--blue);color:var(--blue);background:var(--blue-soft);}
.footer-col-title{font-size:14px;font-weight:700;color:var(--ink);letter-spacing:.2px;margin-bottom:16px;}
.footer-col ul li + li{margin-top:11px;}
.footer-col ul a{font-size:14.5px;color:var(--ink-2);}
.footer-col ul a:hover{color:var(--primary);}
.footer-sub p{font-size:14.5px;color:var(--ink-2);margin-bottom:16px;max-width:320px;}
.sub-form{display:flex;gap:10px;flex-wrap:wrap;}
.sub-form input{flex:1;min-width:180px;height:44px;padding:0 16px;border-radius:var(--radius-s);border:1px solid var(--line);background:var(--surface);outline:none;font-size:14.5px;transition:border-color .18s ease,box-shadow .18s ease;}
.sub-form input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(240,86,47,.12);}
.sub-form .btn{height:44px;}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;padding:22px 0;border-top:1px solid var(--line);}
.footer-bottom p{font-size:13.5px;color:var(--muted);}
.footer-links{display:flex;gap:22px;}
.footer-links a{font-size:13.5px;color:var(--muted);}
.footer-links a:hover{color:var(--blue);}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  :root{--sec-pad:64px;}
  .main-nav,.command-search{display:none;}
  .hamburger{display:flex;}
  .hero{padding:48px 0 64px;}
  .hero-copy{padding-right:0;}
  .hero-visual{justify-content:center;margin-top:44px;}
  .float-a{left:4px;}
  .float-b{right:4px;}
  .stat-bar{margin-top:0;padding-top:48px;}
  .stat-item:nth-child(3)::before{display:none;}
  .stat-item{padding:16px 12px;}
  .cta-band{padding:40px 32px;}
  .cta-band::after{width:60%;}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:32px;}
}
@media screen and (max-width:639px){
  :root{--sec-pad:48px;}
  body{font-size:16px;}
  .container{padding-left:16px;padding-right:16px;}
  .nav-wrap{height:60px;gap:12px;}
  .logo-text{font-size:16px;}
  .btn-sm{height:38px;padding:0 14px;font-size:13.5px;}
  .hero{padding:36px 0 52px;}
  .hero h1{font-size:clamp(26px,7.4vw,32px);}
  .hero-sub{font-size:15.5px;}
  .hero-actions .btn{flex:1;min-width:150px;}
  .hero-metrics{gap:16px 26px;}
  .hero-metrics b{font-size:20px;}
  .stat-item{flex:0 0 50%;max-width:50%;}
  .stat-item::before{display:none;}
  .stat-item:nth-child(odd)::after{content:"";position:absolute;right:-1px;top:16%;bottom:16%;width:1px;background:var(--line);}
  .stat-item{position:relative;}
  .reel-card{flex:0 0 196px;}
  .reel-wrap::after{right:-16px;width:40px;}
  .pick-item{gap:16px;padding:20px 0;align-items:flex-start;}
  .pick-num{font-size:28px;min-width:42px;}
  .pick-thumb{width:96px;}
  .pick-check{display:none;}
  .pick-body h3{font-size:16.5px;}
  .pick-body p{font-size:14px;}
  .cta-band{padding:32px 22px;border-radius:var(--radius-l);}
  .cta-band::after{width:100%;opacity:.12;}
  .cta-band-actions{width:100%;}
  .cta-band-actions .btn{flex:1;min-width:140px;}
  .quote-card{flex:0 0 268px;}
  .faq-item summary{padding:18px 18px;font-size:16px;gap:12px;}
  .faq-answer{padding:0 18px 22px 52px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .sub-form .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --bg:#F5F8FC;
  --bg-alt:#EDF3FA;
  --surface:#FFFFFF;
  --ink:#0F2233;
  --ink-2:#3D5567;
  --muted:#7A8FA3;
  --line:#E2EAF3;
  --primary:#F0562F;
  --primary-ink:#C93F1C;
  --blue:#12508F;
  --blue-soft:#E4EEFA;
  --mint:#12A594;
  --mint-soft:#E2F5F2;
  --amber:#F5A524;
  --danger:#D64545;
  --radius-sm:12px;
  --radius:16px;
  --radius-lg:20px;
  --radius-xl:24px;
  --shadow-1:0 1px 2px rgba(15,34,51,.06);
  --shadow-2:0 10px 30px rgba(15,34,51,.08);
  --shadow-3:0 18px 48px rgba(15,34,51,.12);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:Inter,system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-2);
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);line-height:1.35;font-weight:700}
h1{font-size:clamp(30px,4vw,46px);font-weight:750;letter-spacing:-.01em}
h2{font-size:28px}
h3{font-size:21px;font-weight:600}
p{margin:0 0 1.2em}
a{color:inherit;text-decoration:none;transition:color .18s ease}
img{max-width:100%;display:block}
button,input,select,textarea{font-family:inherit;font-size:inherit}
ul,ol{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-alt{background:var(--bg-alt)}
.muted{color:var(--muted)}
.num{font-family:var(--font-num);font-weight:700}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
::selection{background:rgba(240,86,47,.18)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;background:var(--surface);
  border-bottom:1px solid var(--line);transition:box-shadow .18s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.header-inner{
  max-width:var(--container);margin:0 auto;padding:0 24px;height:68px;
  display:flex;align-items:center;gap:24px;
}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;font-size:18px;letter-spacing:.01em;flex:0 0 auto}
.logo-mark{width:30px;height:30px;color:var(--primary);flex:0 0 auto}
.logo-text{white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:8px;flex:1 1 auto}
.main-nav a{
  position:relative;display:inline-block;padding:8px 13px;border-radius:10px;
  font-size:15px;color:var(--ink-2);white-space:nowrap;
}
.main-nav a:hover{color:var(--primary);background:var(--bg-alt)}
.main-nav a.active{color:var(--blue);font-weight:600}
.main-nav a.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;
  border-radius:2px;background:var(--blue);
}
.nav-tools{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.command-search{position:relative;width:236px}
.command-search .search-icon{
  position:absolute;left:13px;top:50%;transform:translateY(-50%);
  width:16px;height:16px;color:var(--muted);pointer-events:none;
}
.command-search input{
  width:100%;height:40px;border-radius:999px;border:1px solid transparent;
  background:var(--bg-alt);padding:0 60px 0 36px;color:var(--ink);
  font-size:14px;transition:all .18s ease;
}
.command-search input::placeholder{color:var(--muted)}
.command-search input:focus{
  outline:none;background:var(--surface);border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(240,86,47,.12);
}
.command-search kbd{
  position:absolute;right:10px;top:50%;transform:translateY(-50%);
  font-family:var(--font-num);font-size:11px;color:var(--muted);
  border:1px solid var(--line);border-radius:6px;padding:1px 6px;background:var(--surface);
}
.suggest-panel{
  position:absolute;top:calc(100% + 8px);left:0;right:0;background:var(--surface);
  border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-2);
  padding:8px;display:none;z-index:90;
}
.suggest-panel.is-open{display:block}
.suggest-panel a{display:flex;gap:10px;align-items:center;padding:9px 10px;border-radius:10px;font-size:14px;color:var(--ink-2)}
.suggest-panel a:hover{background:var(--bg-alt);color:var(--primary)}
.suggest-panel svg{width:16px;height:16px;color:var(--blue);flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:var(--surface);
  display:inline-flex;align-items:center;justify-content:center;color:var(--blue);
  cursor:pointer;transition:all .18s ease;
}
.icon-btn:hover{border-color:var(--blue);background:var(--blue-soft);transform:translateY(-1px)}
.icon-btn svg{width:18px;height:18px}
.nav-toggle{display:none}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:12px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;transition:all .18s ease;white-space:nowrap;
}
.btn svg{width:16px;height:16px}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 18px rgba(240,86,47,.22)}
.btn-primary:hover{background:var(--primary-ink);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(240,86,47,.28)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-outline{background:var(--surface);border-color:var(--blue);color:var(--blue)}
.btn-outline:hover{background:var(--blue-soft);color:var(--blue);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--ink);padding:0 4px;height:auto}
.btn-ghost:hover{color:var(--primary)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.nav-cta{height:40px;padding:0 20px;font-size:14px;border-radius:11px}
.drawer{
  display:none;position:fixed;inset:0;background:var(--surface);z-index:120;
  padding:24px;overflow-y:auto;
}
.drawer.is-open{display:block}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:20px}
.drawer-nav a{
  padding:14px 12px;border-radius:12px;font-size:17px;color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.drawer-nav a:hover,.drawer-nav a.active{background:var(--bg-alt);color:var(--blue);font-weight:600}
.drawer .command-search{width:100%;margin-bottom:18px}
.drawer .btn{width:100%}

/* ---------- breadcrumb / article head ---------- */
.page-top{background:var(--surface);border-bottom:1px solid var(--line)}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);padding:18px 0 0;
}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:#C3D2E0}
.breadcrumb .current{color:var(--ink-2)}
.article-head{padding:22px 0 40px;max-width:860px}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;
  border-radius:999px;background:var(--mint-soft);color:#0B7C70;
  font-size:13px;font-weight:600;
}
.article-head h1{margin:16px 0 18px;letter-spacing:-.015em}
.article-lead{
  font-size:17px;color:var(--ink-2);max-width:760px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;
  margin-top:22px;font-size:14px;color:var(--muted);
}
.meta-row .meta-item{display:inline-flex;align-items:center;gap:7px}
.meta-row svg{width:15px;height:15px;color:var(--blue);flex:0 0 auto}
.meta-dot{width:4px;height:4px;border-radius:50%;background:#C3D2E0}

/* ---------- layout ---------- */
.article-wrap{padding:56px 0 88px}
.article-body{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:40px 44px;box-shadow:var(--shadow-1);
}
.article-body h2{
  position:relative;font-size:26px;margin:2em 0 .8em;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;width:4px;height:20px;
  border-radius:3px;background:var(--primary);
}
.article-body h2:first-child{margin-top:0}
.article-body h3{position:relative;font-size:20px;margin:1.8em 0 .6em;padding-left:18px}
.article-body h3::before{
  content:"";position:absolute;left:2px;top:.62em;width:7px;height:7px;
  border-radius:50%;background:var(--blue);
}
.article-body p{line-height:1.9;margin-bottom:1.4em}
.article-body strong{color:var(--ink);font-weight:600}
.article-body ul,.article-body ol{margin:0 0 1.5em;padding-left:4px}
.article-body li{position:relative;padding-left:22px;margin-bottom:10px;line-height:1.85}
.article-body ul>li::before{
  content:"";position:absolute;left:4px;top:.72em;width:7px;height:7px;
  border-radius:50%;background:var(--primary);
}
.article-body ol{counter-reset:olist}
.article-body ol>li{counter-increment:olist;padding-left:34px}
.article-body ol>li::before{
  content:counter(olist,decimal-leading-zero);
  position:absolute;left:0;top:0;font-family:var(--font-num);
  font-size:14px;font-weight:700;color:var(--primary);
}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;background:var(--bg-alt);
  border-left:4px solid var(--primary);border-radius:0 14px 14px 0;color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;width:100%;height:auto;object-fit:cover;margin:1.6em 0 .6em}
.article-body figure{margin:1.6em 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--muted);margin-top:4px}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:1.5em 0}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}
.article-body th{background:var(--bg-alt);color:var(--ink);font-weight:600}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(240,86,47,.35)}
.article-body a:hover{color:var(--primary-ink);border-bottom-color:var(--primary-ink)}
.article-body .tip{
  background:var(--blue-soft);border-radius:14px;padding:18px 20px 18px 48px;
  position:relative;margin:1.6em 0;
}
.article-body .tip::before{
  content:"";position:absolute;left:20px;top:24px;width:14px;height:14px;
  border-radius:50%;border:1.5px solid var(--blue);
}
.empty-state{
  text-align:center;padding:64px 20px;
}
.empty-state svg{width:110px;height:110px;color:var(--muted);margin:0 auto 18px}
.empty-state p{color:var(--ink-2);margin-bottom:20px}

/* ---------- sidebar ---------- */
.article-side{display:flex;flex-direction:column;gap:22px}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow-1);
}
.side-card h3{font-size:16px;display:flex;align-items:center;gap:8px;margin-bottom:14px}
.side-card h3 svg{width:17px;height:17px;color:var(--primary)}
.toc-list{position:relative;padding-left:18px;border-left:2px solid var(--line)}
.toc-list li{margin-bottom:10px}
.toc-list a{font-size:14.5px;color:var(--ink-2);display:block;position:relative}
.toc-list a::before{
  content:"";position:absolute;left:-24px;top:.62em;width:9px;height:9px;
  border-radius:50%;background:var(--surface);border:2px solid #C3D2E0;
  transition:all .18s ease;
}
.toc-list a:hover{color:var(--primary)}
.toc-list a.is-here{color:var(--blue);font-weight:600}
.toc-list a.is-here::before{border-color:var(--primary);background:var(--primary)}
.side-post{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid var(--line)}
.side-post:last-child{border-bottom:0;padding-bottom:0}
.side-post:first-of-type{padding-top:0}
.side-post img{
  width:88px;height:60px;border-radius:10px;object-fit:cover;flex:0 0 auto;
  transition:transform .25s ease;
}
.side-post:hover img{transform:scale(1.03)}
.side-post .sp-title{
  font-size:14.5px;color:var(--ink);font-weight:600;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.side-post:hover .sp-title{color:var(--primary)}
.side-post .sp-meta{font-size:12.5px;color:var(--muted);margin-top:6px}
.cta-card{
  background:var(--blue-soft);border:1px solid #D3E2F6;border-radius:var(--radius);
  padding:24px;position:relative;overflow:hidden;
}
.cta-card h3{font-size:17px;margin-bottom:8px}
.cta-card p{font-size:14px;color:var(--ink-2);margin-bottom:16px}
.cta-card .btn{width:100%;height:44px}
.toc-mobile{display:none;margin-bottom:22px}
.toc-mobile summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  background:var(--surface);border:1px solid var(--line);border-radius:14px;
  padding:14px 18px;font-size:15px;font-weight:600;color:var(--ink);box-shadow:var(--shadow-1);
}
.toc-mobile summary::-webkit-details-marker{display:none}
.toc-mobile summary svg{width:16px;height:16px;color:var(--blue);transition:transform .2s ease}
.toc-mobile[open] summary svg{transform:rotate(180deg)}
.toc-mobile .toc-box{
  background:var(--surface);border:1px solid var(--line);border-top:0;
  border-radius:0 0 14px 14px;padding:16px 18px;
}

/* ---------- after article ---------- */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:36px 0 0}
.tag-row .label{font-size:13.5px;color:var(--muted)}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  background:var(--bg-alt);color:var(--ink-2);font-size:13.5px;transition:all .18s ease;
}
.tag:hover{background:var(--blue-soft);color:var(--blue)}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:34px}
.post-nav-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;box-shadow:var(--shadow-1);transition:all .18s ease;
}
.post-nav-card:hover{box-shadow:var(--shadow-3);transform:translateY(-4px);border-color:#CFE0F2}
.post-nav-card .pn-label{font-size:13px;color:var(--muted);display:flex;align-items:center;gap:6px;margin-bottom:8px}
.post-nav-card .pn-label svg{width:14px;height:14px;color:var(--primary)}
.post-nav-card .pn-title{
  font-size:15.5px;color:var(--ink);font-weight:600;line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-nav-card.next{text-align:right}
.post-nav-card.next .pn-label{justify-content:flex-end}
.back-row{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-top:38px}
.related-section{margin-top:64px}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:28px}
.section-head h2{font-size:26px}
.section-head p{margin:6px 0 0;font-size:14.5px;color:var(--muted)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:14.5px;font-weight:600}
.link-arrow svg{width:15px;height:15px;transition:transform .18s ease}
.link-arrow:hover svg{transform:translateX(3px)}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-1);transition:all .18s ease;display:flex;flex-direction:column;
}
.post-card:hover{box-shadow:var(--shadow-3);transform:translateY(-4px);border-color:#CFE0F2}
.post-card .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--bg-alt)}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.post-card:hover .thumb img{transform:scale(1.03)}
.post-card .body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto}
.post-card h3{
  font-size:17px;margin:12px 0 8px;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card:hover h3{color:var(--primary)}
.post-card p{
  font-size:14px;color:var(--ink-2);line-height:1.7;margin:0 0 16px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card .foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--muted);border-top:1px solid var(--line);padding-top:14px;
}
.post-card .foot svg{width:15px;height:15px;color:var(--primary)}

/* ---------- footer ---------- */
.site-footer{background:var(--surface);border-top:1px solid var(--line);padding:64px 0 0;margin-top:0}
.footer-grid{padding-bottom:44px}
.footer-brand .logo{margin-bottom:16px}
.footer-about{font-size:14.5px;color:var(--muted);max-width:320px;line-height:1.8}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social a{
  width:38px;height:38px;border-radius:11px;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--blue);
  transition:all .18s ease;
}
.footer-social a:hover{background:var(--blue-soft);border-color:var(--blue);transform:translateY(-2px)}
.footer-social svg{width:18px;height:18px}
.footer-col-title{font-size:14px;font-weight:700;color:var(--ink);margin-bottom:16px;letter-spacing:.02em}
.footer-col ul li{margin-bottom:11px}
.footer-col ul a{font-size:14.5px;color:var(--muted)}
.footer-col ul a:hover{color:var(--primary)}
.footer-sub p{font-size:14.5px;color:var(--muted);margin-bottom:14px}
.sub-form{display:flex;gap:10px}
.sub-form input{
  flex:1 1 auto;min-width:0;height:48px;border-radius:10px;border:1px solid var(--line);
  background:var(--bg);padding:0 14px;font-size:14.5px;color:var(--ink);transition:all .18s ease;
}
.sub-form input:focus{outline:none;border-color:var(--primary);background:var(--surface);box-shadow:0 0 0 3px rgba(240,86,47,.12)}
.sub-form input.is-error{border-color:var(--danger)}
.form-note{font-size:12.5px;color:var(--muted);margin-top:10px}
.form-note.is-error{color:var(--danger)}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:12px 26px;
  align-items:center;justify-content:space-between;font-size:13.5px;color:var(--muted);
}
.footer-bottom .fb-links{display:flex;flex-wrap:wrap;gap:20px}
.footer-bottom a:hover{color:var(--primary)}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease}
.reveal.is-in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .reveal{opacity:1;transform:none}
}
@media screen and (max-width:1023px){
  .main-nav{display:none}
  .command-search{display:none}
  .nav-toggle{display:inline-flex}
  .nav-cta{display:none}
  .section{padding:64px 0}
  .article-body{padding:32px 30px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
}
@media screen and (max-width:768px){
  .article-wrap{padding:36px 0 64px}
  .article-head{padding:18px 0 30px}
  .article-lead{font-size:16px;-webkit-line-clamp:4}
  .toc-mobile{display:block}
  .article-side .side-card.toc-desktop{display:none}
  .post-nav{grid-template-columns:1fr}
  .post-nav-card.next{text-align:left}
  .post-nav-card.next .pn-label{justify-content:flex-start}
}
@media screen and (max-width:640px){
  .container{padding:0 16px}
  .header-inner{padding:0 16px;height:60px}
  .logo{font-size:17px}
  .section{padding:48px 0}
  h2,.article-body h2{font-size:23px}
  h3,.article-body h3{font-size:19px}
  .article-body{padding:24px 20px;border-radius:var(--radius)}
  .related-grid{grid-template-columns:1fr}
  .sub-form{flex-direction:column}
  .sub-form .btn{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category1 */
:root{
  --bg:#F5F8FC;
  --bg-alt:#EDF3FA;
  --surface:#FFFFFF;
  --ink:#0F2233;
  --ink-2:#3D5567;
  --muted:#7A8FA3;
  --line:#E2EAF3;
  --primary:#F0562F;
  --primary-ink:#C93F1C;
  --blue:#12508F;
  --blue-soft:#E4EEFA;
  --mint:#12A594;
  --amber:#F5A524;
  --radius:16px;
  --radius-lg:20px;
  --radius-xl:24px;
  --shadow-1:0 1px 2px rgba(15,34,51,.06);
  --shadow-2:0 10px 30px rgba(15,34,51,.08);
  --shadow-3:0 18px 48px rgba(15,34,51,.12);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:Inter,system-ui,"PingFang SC",sans-serif;
  --header-h:68px;
}
*,*::before,*::after{box-sizing:border-box;}
html,body{margin:0;padding:0;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;padding:0;}
ul,ol{list-style:none;}
h1,h2,h3,h4{color:var(--ink);font-weight:700;line-height:1.35;}
h1{font-weight:750;font-size:clamp(30px,4vw,46px);letter-spacing:-.5px;}
h2{font-size:clamp(24px,2.4vw,32px);}
h3{font-size:20px;font-weight:600;}
p{font-size:16.5px;line-height:1.85;}
a{color:inherit;text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;}
img{max-width:100%;display:block;}
button,input{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;box-shadow:0 0 0 4px rgba(240,86,47,.16);border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}
.section{padding-top:88px;padding-bottom:88px;}
.section--alt{background:var(--bg-alt);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.section-head h2{position:relative;padding-left:16px;}
.section-head h2::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:4px;height:22px;border-radius:2px;background:var(--primary);}
.section-head p{color:var(--muted);font-size:14.5px;max-width:640px;}
.grid-margin-x{margin-left:-12px;margin-right:-12px;}
.grid-margin-x>.cell{padding-left:12px;padding-right:12px;}
.badge{display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 14px;border-radius:999px;font-size:13px;font-weight:600;line-height:1;}
.badge-mint{background:rgba(18,165,148,.12);color:#0C7A6E;}
.badge-blue{background:var(--blue-soft);color:var(--blue);}
.badge-amber{background:rgba(245,165,36,.14);color:#A96B00;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:12px;font-size:15.5px;font-weight:600;border:1px solid transparent;white-space:nowrap;}
.btn svg{width:18px;height:18px;flex:none;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 18px rgba(240,86,47,.24);}
.btn-primary:hover{background:var(--primary-ink);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);}
.btn-outline{background:#fff;color:var(--blue);border-color:rgba(18,80,143,.35);}
.btn-outline:hover{background:var(--blue-soft);color:var(--blue);transform:translateY(-1px);}
.btn-outline:active{transform:translateY(1px);}
.btn-sm{height:40px;padding:0 18px;font-size:14.5px;border-radius:10px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;font-size:14.5px;}
.link-arrow svg{width:16px;height:16px;transition:transform .18s ease;}
.link-arrow:hover{color:var(--primary-ink);}
.link-arrow:hover svg{transform:translateX(3px);}

/* ============ Header ============ */
.site-header{position:sticky;top:0;z-index:60;background:var(--surface);border-bottom:1px solid var(--line);transition:box-shadow .2s ease;}
.site-header.is-scrolled{box-shadow:var(--shadow-1);}
.header-inner{display:flex;align-items:center;gap:24px;height:var(--header-h);}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none;}
.logo-mark{width:30px;height:30px;color:var(--primary);}
.logo-text{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:-.2px;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px;}
.main-nav a{position:relative;display:inline-flex;align-items:center;height:var(--header-h);padding:0 14px;font-size:15px;color:var(--ink-2);font-weight:500;}
.main-nav a::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;border-radius:2px;background:transparent;transition:background-color .18s ease;}
.main-nav a:hover{color:var(--blue);}
.main-nav a.active{color:var(--blue);font-weight:600;}
.main-nav a.active::after{background:var(--blue);}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.command-search{position:relative;display:flex;align-items:center;gap:8px;width:260px;height:40px;padding:0 14px;border-radius:999px;background:var(--bg-alt);border:1px solid transparent;transition:background-color .18s ease,border-color .18s ease,box-shadow .18s ease;}
.command-search svg{width:16px;height:16px;color:var(--muted);flex:none;}
.command-search input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14.5px;color:var(--ink);height:100%;}
.command-search input::placeholder{color:var(--muted);}
.command-search:focus-within{background:#fff;border-color:var(--primary);box-shadow:0 0 0 4px rgba(240,86,47,.12);}
.kbd{font-family:var(--font-num);font-size:11px;color:var(--muted);border:1px solid var(--line);background:#fff;border-radius:6px;padding:1px 6px;line-height:1.6;}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--blue);}
.icon-btn svg{width:18px;height:18px;}
.icon-btn:hover{border-color:rgba(18,80,143,.35);background:var(--blue-soft);}
.menu-toggle{display:none;align-items:center;justify-content:center;width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--ink);}
.menu-toggle svg{width:20px;height:20px;}

/* ============ Drawer ============ */
.drawer-mask{position:fixed;inset:0;background:rgba(15,34,51,.42);opacity:0;pointer-events:none;transition:opacity .22s ease;z-index:70;}
.drawer-mask.open{opacity:1;pointer-events:auto;}
.mobile-drawer{position:fixed;top:0;right:0;bottom:0;width:min(360px,86vw);background:#fff;z-index:80;transform:translateX(102%);transition:transform .28s ease;padding:24px;overflow-y:auto;display:flex;flex-direction:column;gap:20px;}
.mobile-drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;color:var(--ink);}
.drawer-close svg{width:18px;height:18px;}
.drawer-search{display:flex;align-items:center;gap:8px;height:46px;padding:0 14px;border-radius:12px;background:var(--bg-alt);border:1px solid transparent;}
.drawer-search svg{width:16px;height:16px;color:var(--muted);}
.drawer-search input{flex:1;border:0;background:transparent;outline:none;font-size:15px;}
.drawer-search:focus-within{background:#fff;border-color:var(--primary);}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{padding:14px 4px;font-size:16px;color:var(--ink-2);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;}
.drawer-nav a.active{color:var(--blue);font-weight:600;}
.drawer-nav a svg{width:16px;height:16px;color:var(--muted);}

/* ============ Breadcrumb ============ */
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:6px;font-size:13px;color:var(--muted);margin-bottom:26px;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--blue);}
.breadcrumb .sep{color:#C3D2E0;}
.breadcrumb .current{color:var(--ink-2);font-weight:600;}

/* ============ Page hero ============ */
.page-hero{position:relative;padding:48px 0 72px;background:linear-gradient(180deg,var(--blue-soft) 0%,var(--bg) 100%);overflow:hidden;}
.page-hero::after{content:"";position:absolute;right:-120px;top:-80px;width:420px;height:420px;border-radius:50%;background:rgba(18,165,148,.10);pointer-events:none;}
.page-hero .container{position:relative;z-index:2;}
.hero-grid{align-items:center;}
.hero-copy h1{margin:14px 0 16px;max-width:16em;}
.hero-lead{color:var(--ink-2);font-size:17px;line-height:1.85;max-width:600px;}
.anchor-group{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.chip{display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 18px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--ink-2);font-size:14.5px;font-weight:500;box-shadow:var(--shadow-1);}
.chip svg{width:15px;height:15px;color:var(--blue);}
.chip:hover{border-color:rgba(18,80,143,.4);color:var(--blue);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.hero-figure{position:relative;border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow-3);aspect-ratio:16/11;background:var(--bg-alt);}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.hero-figure::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,34,51,0) 42%,rgba(15,34,51,.55) 100%);}
.hero-float{position:absolute;left:20px;bottom:20px;z-index:3;display:flex;align-items:center;gap:10px;background:rgba(255,255,255,.94);border-radius:14px;padding:10px 14px;box-shadow:var(--shadow-2);}
.hero-float .dot{width:9px;height:9px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 4px rgba(18,165,148,.18);}
.hero-float span{font-size:13.5px;color:var(--ink);font-weight:600;}
.hero-badge{position:absolute;right:20px;top:20px;z-index:3;background:rgba(255,255,255,.94);border-radius:14px;padding:8px 14px;font-family:var(--font-num);font-size:13px;font-weight:600;color:var(--blue);box-shadow:var(--shadow-2);}

/* ============ Matrix cards ============ */
.card-matrix>.cell{margin-bottom:24px;}
.matrix-card{position:relative;display:flex;flex-direction:column;height:100%;min-height:220px;padding:28px;border-radius:var(--radius-lg);background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-1);overflow:hidden;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;}
.matrix-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-3);border-color:#D3E0EE;}
.matrix-icon{display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:14px;background:var(--blue-soft);color:var(--blue);margin-bottom:18px;flex:none;}
.matrix-icon svg{width:22px;height:22px;}
.matrix-card h3{font-size:19px;margin-bottom:10px;}
.matrix-card p{font-size:15px;color:var(--ink-2);line-height:1.8;}
.matrix-foot{margin-top:auto;padding-top:18px;}
.matrix-card--lead{min-height:100%;padding:34px;justify-content:flex-end;background:linear-gradient(140deg,#0F2233 0%,#12508F 100%);border-color:transparent;color:rgba(255,255,255,.82);}
.matrix-card--lead h3{color:#fff;font-size:24px;}
.matrix-card--lead p{color:rgba(255,255,255,.78);max-width:24em;}
.matrix-card--lead .matrix-icon{background:rgba(255,255,255,.14);color:#fff;}
.matrix-card--lead .link-arrow{color:#fff;}
.matrix-card--lead .link-arrow:hover{color:#FFD9CD;}
.matrix-bg{position:absolute;inset:0;z-index:0;opacity:.26;}
.matrix-bg img{width:100%;height:100%;object-fit:cover;}
.matrix-card--lead>*:not(.matrix-bg){position:relative;z-index:2;}
.matrix-card--lead .matrix-inner{display:flex;flex-direction:column;gap:10px;}

/* ============ Feature split ============ */
.feature-split{align-items:center;}
.feature-figure{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-2);aspect-ratio:4/3;background:var(--bg-alt);}
.feature-figure img{width:100%;height:100%;object-fit:cover;}
.feature-figure figcaption{position:absolute;left:0;right:0;bottom:0;padding:14px 18px;font-size:13px;color:#fff;background:linear-gradient(180deg,rgba(15,34,51,0),rgba(15,34,51,.72));}
.feature-copy h2{margin-bottom:18px;padding-left:16px;position:relative;}
.feature-copy h2::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:4px;height:22px;border-radius:2px;background:var(--primary);}
.feature-copy>p{margin-bottom:22px;max-width:38em;}
.check-list{display:flex;flex-direction:column;gap:14px;}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:var(--ink-2);}
.check-mark{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:50%;background:rgba(18,165,148,.14);color:var(--mint);flex:none;margin-top:3px;}
.check-mark svg{width:13px;height:13px;}
.note-box{margin-top:26px;padding:18px 20px;border-radius:14px;background:var(--blue-soft);border-left:3px solid var(--blue);font-size:14.5px;color:var(--blue);}

/* ============ Related slider ============ */
.slider-wrap{position:relative;}
.slider-track{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding:6px 24px 22px;margin:0 -24px;scrollbar-width:none;}
.slider-track::-webkit-scrollbar{display:none;}
.slider-card{flex:0 0 300px;scroll-snap-align:start;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-1);overflow:hidden;display:flex;flex-direction:column;transition:transform .18s ease,box-shadow .18s ease;}
.slider-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-3);}
.slider-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--bg-alt);}
.slider-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.slider-card:hover .slider-thumb img{transform:scale(1.04);}
.slider-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:8px;flex:1;}
.slider-body h3{font-size:17px;}
.slider-body p{font-size:14px;color:var(--muted);line-height:1.7;}

/* ============ FAQ ============ */
.faq-list{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-1);overflow:hidden;}
.faq-item{position:relative;border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-item::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;background:transparent;transition:background-color .18s ease;}
.faq-item[open]::before{background:var(--primary);}
.faq-item summary{display:flex;align-items:center;gap:16px;padding:22px 26px;cursor:pointer;list-style:none;font-size:17px;font-weight:600;color:var(--ink);}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-num{font-family:var(--font-num);font-size:14px;font-weight:700;color:var(--primary);opacity:.75;flex:none;}
.faq-item summary .arrow{margin-left:auto;width:18px;height:18px;color:var(--muted);transition:transform .22s ease;flex:none;}
.faq-item[open] summary{color:var(--blue);}
.faq-item[open] summary .arrow{transform:rotate(180deg);color:var(--blue);}
.faq-answer{padding:0 26px 26px 66px;max-width:760px;font-size:15.5px;color:var(--ink-2);line-height:1.9;}

/* ============ CTA band ============ */
.cta-band{position:relative;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;padding:44px 48px;border-radius:var(--radius-xl);background:var(--blue-soft);overflow:hidden;}
.cta-band::after{content:"";position:absolute;right:0;top:0;bottom:0;width:44%;background-image:url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;opacity:.2;pointer-events:none;}
.cta-copy{position:relative;z-index:2;max-width:560px;}
.cta-copy h2{margin-bottom:10px;}
.cta-copy p{color:var(--ink-2);font-size:15.5px;}
.cta-actions{position:relative;z-index:2;display:flex;gap:12px;flex-wrap:wrap;}

/* ============ Footer ============ */
.site-footer{background:var(--bg-alt);border-top:1px solid var(--line);padding:64px 0 0;}
.footer-grid{padding-bottom:44px;}
.footer-brand .logo{margin-bottom:16px;}
.footer-about{font-size:14.5px;color:var(--muted);line-height:1.85;max-width:32em;margin-bottom:20px;}
.footer-social{display:flex;gap:10px;}
.footer-social a{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:11px;background:#fff;border:1px solid var(--line);color:var(--blue);}
.footer-social a svg{width:18px;height:18px;}
.footer-social a:hover{background:var(--blue);color:#fff;border-color:var(--blue);transform:translateY(-2px);}
.footer-col-title{font-size:14px;font-weight:700;color:var(--ink);margin-bottom:16px;letter-spacing:.2px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14.5px;color:var(--ink-2);}
.footer-col a:hover{color:var(--primary);}
.footer-sub p{font-size:14.5px;color:var(--muted);line-height:1.8;margin-bottom:16px;}
.subscribe-form{display:flex;gap:10px;}
.subscribe-form input{flex:1;min-width:0;height:48px;padding:0 16px;border-radius:10px;border:1px solid var(--line);background:#fff;outline:none;font-size:15px;color:var(--ink);}
.subscribe-form input::placeholder{color:var(--muted);}
.subscribe-form input:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(240,86,47,.12);}
.footer-bottom{border-top:1px solid var(--line);padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13.5px;color:var(--muted);}
.footer-bottom .links{display:flex;gap:18px;}
.footer-bottom a{color:var(--muted);}
.footer-bottom a:hover{color:var(--blue);}

/* ============ Responsive ============ */
@media (max-width:1023px){
  .main-nav{display:none;}
  .command-search{display:none;}
  .menu-toggle{display:inline-flex;}
  .section{padding-top:64px;padding-bottom:64px;}
  .page-hero{padding:36px 0 56px;}
  .hero-figure{margin-top:28px;aspect-ratio:16/10;}
  .cta-band{padding:36px 32px;}
  .footer-sub{margin-top:8px;}
}
@media (max-width:639px){
  .container{padding-left:16px;padding-right:16px;}
  .section{padding-top:48px;padding-bottom:48px;}
  .header-inner{gap:12px;height:60px;}
  .logo-text{font-size:16.5px;}
  .btn{height:46px;padding:0 18px;font-size:15px;}
  .header-actions .btn-primary{display:none;}
  .section-head{margin-bottom:24px;}
  .card-matrix>.cell{margin-bottom:16px;}
  .matrix-card{padding:22px;min-height:auto;}
  .matrix-card--lead{padding:26px;}
  .matrix-card--lead h3{font-size:21px;}
  .faq-item summary{padding:18px 18px;font-size:16px;gap:12px;}
  .faq-answer{padding:0 18px 22px 18px;}
  .cta-band{padding:28px 22px;border-radius:20px;}
  .cta-band::after{width:100%;opacity:.12;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;}
  .subscribe-form{flex-direction:column;}
  .subscribe-form .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
  .hero-badge{right:14px;top:14px;}
  .hero-float{left:14px;bottom:14px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
  .matrix-card:hover,.slider-card:hover,.btn:hover{transform:none !important;}
}

/* roulang page: category2 */
:root{
  --bg:#F5F8FC;
  --bg-alt:#EDF3FA;
  --surface:#FFFFFF;
  --ink:#0F2233;
  --ink-2:#3D5567;
  --muted:#7A8FA3;
  --line:#E2EAF3;
  --primary:#F0562F;
  --primary-ink:#C93F1C;
  --blue:#12508F;
  --blue-soft:#E4EEFA;
  --mint:#12A594;
  --amber:#F5A524;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Inter",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  --shadow-1:0 1px 2px rgba(15,34,51,.06);
  --shadow-2:0 10px 30px rgba(15,34,51,.08);
  --shadow-3:0 18px 48px rgba(15,34,51,.12);
  --radius:16px;
  --radius-lg:24px;
  --radius-sm:12px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
button,input{font-family:inherit;font-size:inherit;}
button{border:0;background:none;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{color:var(--ink);font-weight:700;line-height:1.35;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;box-shadow:0 0 0 4px rgba(240,86,47,.16);border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .18s ease;
}
.site-header.is-stuck{box-shadow:var(--shadow-1);}
.nav-inner{display:flex;align-items:center;gap:20px;height:68px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink);}
.logo-mark{width:28px;height:28px;color:var(--primary);flex:0 0 auto;}
.logo-text{font-size:18px;font-weight:700;letter-spacing:.2px;white-space:nowrap;font-family:var(--font-cn);}
.main-nav{display:flex;align-items:stretch;height:68px;gap:2px;}
.main-nav a{
  position:relative;display:flex;align-items:center;
  padding:0 12px;font-size:15px;color:var(--ink-2);
}
.main-nav a:hover{color:var(--blue);background:var(--bg-alt);}
.main-nav a.active{color:var(--blue);font-weight:600;}
.main-nav a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;
  border-radius:2px;background:var(--blue);
}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.command-search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 12px;
  background:var(--bg-alt);border:1px solid transparent;border-radius:999px;
  transition:background .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.command-search:focus-within{background:#fff;border-color:var(--primary);box-shadow:0 0 0 4px rgba(240,86,47,.12);}
.command-search svg{width:16px;height:16px;color:var(--muted);flex:0 0 auto;}
.command-search input{
  width:186px;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--ink);padding:0;
}
.command-search input::placeholder{color:var(--muted);}
.kbd{
  font-family:var(--font-num);font-size:11px;color:var(--muted);
  background:#fff;border:1px solid var(--line);border-radius:6px;
  padding:2px 6px;line-height:1.4;white-space:nowrap;
}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;color:var(--blue);
  border:1px solid var(--line);background:#fff;
}
.icon-btn:hover{border-color:var(--blue);background:var(--blue-soft);}
.icon-btn svg{width:18px;height:18px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:12px;
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:transform .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn svg{width:16px;height:16px;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 18px rgba(240,86,47,.22);}
.btn-primary:hover{background:var(--primary-ink);transform:translateY(-1px);box-shadow:0 10px 24px rgba(240,86,47,.28);}
.btn-primary:active{transform:translateY(1px);}
.btn-outline{background:#fff;color:var(--blue);border-color:var(--blue);}
.btn-outline:hover{background:var(--blue-soft);transform:translateY(-1px);}
.btn-block{width:100%;}
.burger{
  display:none;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
  color:var(--ink);background:#fff;
}
.burger svg{width:20px;height:20px;}
.nav-drawer{display:none;border-top:1px solid var(--line);background:#fff;}
.nav-drawer.is-open{display:block;}
.drawer-inner{padding:20px 24px 26px;}
.drawer-search{width:100%;}
.drawer-search input{width:100%;}
.drawer-nav{display:flex;flex-direction:column;gap:2px;margin:18px 0;}
.drawer-nav a{padding:12px 14px;border-radius:10px;font-size:16px;color:var(--ink-2);}
.drawer-nav a:hover{background:var(--bg-alt);color:var(--blue);}
.drawer-nav a.active{background:var(--blue-soft);color:var(--blue);font-weight:600;}

/* ============ 面包屑与页头 ============ */
.crumbs{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  padding-top:22px;font-size:13px;color:var(--muted);
}
.crumbs a:hover{color:var(--blue);}
.crumbs .sep{color:#C4D3E3;}
.crumbs .current{color:var(--ink-2);}
.page-head{
  position:relative;overflow:hidden;
  padding:28px 0 72px;
  background:linear-gradient(180deg,var(--blue-soft) 0%,#F5F8FC 100%);
}
.page-head::after{
  content:"";position:absolute;right:-140px;top:-120px;
  width:440px;height:440px;border-radius:50%;
  background:rgba(18,165,148,.09);
}
.head-wrap{position:relative;z-index:1;margin-top:26px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:#0B7A6D;
  background:rgba(18,165,148,.12);border-radius:999px;padding:6px 14px;
}
.eyebrow svg{width:14px;height:14px;}
.page-head h1{
  font-size:clamp(30px,4vw,46px);font-weight:750;letter-spacing:-.4px;
  line-height:1.28;margin:18px 0 16px;max-width:820px;
}
.page-head .lead{max-width:720px;font-size:17px;line-height:1.9;}
.head-stats{display:flex;flex-wrap:wrap;gap:34px;margin-top:30px;}
.stat b{display:block;font-family:var(--font-num);font-size:26px;font-weight:700;color:var(--primary);line-height:1.3;}
.stat span{font-size:13px;color:var(--muted);}
.head-visual{
  border-radius:var(--radius-lg);overflow:hidden;background:var(--surface);
  border:1px solid var(--line);box-shadow:var(--shadow-2);
}
.head-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;}

/* 路径条 */
.path-bar{
  margin-top:40px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:26px 28px 22px;box-shadow:var(--shadow-1);
}
.path-title{
  display:flex;align-items:center;gap:10px;
  font-size:14px;font-weight:600;color:var(--ink);margin-bottom:22px;
}
.path-title svg{width:16px;height:16px;color:var(--primary);}
.path-steps{display:grid;grid-template-columns:repeat(4,1fr);}
.path-step{position:relative;padding:30px 10px 0;text-align:center;}
.path-step::before{
  content:"";position:absolute;top:9px;left:0;right:0;height:2px;background:var(--line);
}
.path-step:first-child::before{left:50%;}
.path-step:last-child::before{right:50%;}
.path-dot{
  position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:20px;height:20px;border-radius:50%;background:#fff;
  border:2px solid var(--blue);
}
.path-step.is-first .path-dot{background:var(--primary);border-color:var(--primary);box-shadow:0 0 0 5px rgba(240,86,47,.14);}
.path-step b{display:block;font-size:15px;color:var(--ink);font-weight:600;}
.path-step span{display:block;font-size:13px;color:var(--muted);margin-top:2px;}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section-alt{background:var(--bg-alt);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{
  position:relative;padding-left:16px;
  font-size:clamp(24px,3vw,32px);
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.3em;width:4px;height:20px;
  border-radius:2px;background:var(--primary);
}
.section-head p{margin-top:14px;color:var(--ink-2);}
.sec-foot{margin-top:32px;display:flex;align-items:center;gap:16px;flex-wrap:wrap;}

/* ============ 编号清单 ============ */
.check-list{border-top:1px solid var(--line);}
.check-item{
  display:grid;grid-template-columns:70px 200px 1fr auto;gap:26px;align-items:center;
  padding:26px 0;border-bottom:1px solid var(--line);
  transition:background-color .18s ease;
}
.check-item:hover{background:rgba(255,255,255,.76);}
.check-num{
  font-family:var(--font-num);font-size:40px;font-weight:700;line-height:1;
  color:rgba(240,86,47,.3);letter-spacing:-1px;
}
.check-media{
  aspect-ratio:3/2;border-radius:14px;overflow:hidden;background:var(--bg-alt);border:1px solid var(--line);
}
.check-media img{
  width:100%;height:100%;object-fit:cover;transition:transform .35s ease;
}
.check-item:hover .check-media img{transform:scale(1.03);}
.check-body h3{font-size:20px;font-weight:600;margin-bottom:6px;}
.check-body p{font-size:15px;line-height:1.85;max-width:620px;}
.text-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-weight:600;font-size:15px;white-space:nowrap;
}
.text-arrow svg{width:16px;height:16px;transition:transform .18s ease;}
.text-arrow:hover svg{transform:translateX(3px);}

/* ============ 对比行组 ============ */
.compare-list{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-1);
}
.compare-head{
  display:grid;grid-template-columns:200px 1fr auto;gap:24px;
  padding:16px 26px;background:var(--bg-alt);
  font-size:12px;font-weight:600;color:var(--muted);letter-spacing:.5px;
  border-bottom:1px solid var(--line);
}
.compare-row{
  display:grid;grid-template-columns:200px 1fr auto;gap:24px;align-items:center;
  padding:22px 26px;border-bottom:1px solid var(--line);
  transition:background-color .18s ease;
}
.compare-row:last-child{border-bottom:0;}
.compare-row:hover{background:var(--bg-alt);}
.compare-name{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:600;color:var(--ink);}
.compare-name .dot{width:8px;height:8px;border-radius:50%;background:var(--blue);flex:0 0 auto;}
.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
.metric span{display:block;font-size:12px;color:var(--muted);line-height:1.6;}
.metric b{font-family:var(--font-num);font-size:15px;font-weight:600;color:var(--ink);}
.badge{
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:600;padding:5px 12px;border-radius:999px;
  white-space:nowrap;
}
.badge-primary{background:rgba(240,86,47,.12);color:var(--primary-ink);}
.badge-mint{background:rgba(18,165,148,.14);color:#0B7A6D;}
.badge-blue{background:var(--blue-soft);color:var(--blue);}

/* ============ 结论卡 ============ */
.conclusion{
  position:relative;overflow:hidden;
  background:var(--blue-soft);border-radius:var(--radius-lg);
  padding:46px;display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center;
}
.conclusion::after{
  content:"";position:absolute;right:-70px;bottom:-90px;width:320px;height:320px;
  border-radius:50%;opacity:.16;
  background:url(/assets/images/backpic/back-2.png) center/cover no-repeat;
}
.conclusion h2{font-size:clamp(22px,2.6vw,28px);margin-bottom:12px;}
.conclusion p{max-width:600px;font-size:15.5px;}
.conclusion .actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1;}

/* ============ 相关分类横滑 ============ */
.rail-wrap{position:relative;}
.rail{
  display:flex;gap:20px;overflow-x:auto;padding:4px 0 14px;
  scroll-snap-type:x mandatory;scrollbar-width:none;-ms-overflow-style:none;
}
.rail::-webkit-scrollbar{display:none;}
.rail-card{
  flex:0 0 300px;scroll-snap-align:start;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease;
}
.rail-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-3);}
.rail-card img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.rail-body{padding:18px 20px 22px;}
.rail-body h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.rail-body p{font-size:14px;color:var(--ink-2);line-height:1.8;}

/* ============ 页脚 ============ */
.site-footer{background:#fff;border-top:1px solid var(--line);padding-top:64px;}
.footer-grid{row-gap:36px;}
.footer-brand .logo{margin-bottom:16px;}
.footer-about{font-size:14px;color:var(--muted);max-width:320px;line-height:1.85;}
.footer-social{display:flex;gap:10px;margin-top:20px;}
.footer-social a{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--blue);
}
.footer-social a:hover{background:var(--blue-soft);border-color:var(--blue);}
.footer-social svg{width:16px;height:16px;}
.footer-col-title{font-size:14px;font-weight:700;color:var(--ink);margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:14px;color:var(--ink-2);}
.footer-col ul a:hover{color:var(--primary);}
.footer-sub p{font-size:14px;color:var(--muted);margin-bottom:14px;}
.subscribe-form{display:flex;gap:10px;flex-wrap:wrap;}
.subscribe-form input{
  flex:1 1 180px;height:48px;border:1px solid var(--line);border-radius:10px;
  padding:0 14px;outline:none;background:var(--bg);font-size:14px;color:var(--ink);
  transition:border-color .18s ease,background-color .18s ease;
}
.subscribe-form input:focus{border-color:var(--primary);background:#fff;}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--line);padding:20px 0;
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}
.footer-bottom-links{display:flex;gap:18px;}
.footer-bottom-links a:hover{color:var(--primary);}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .command-search input{width:150px;}
}
@media (max-width:1023px){
  .main-nav,.command-search,.icon-btn,.nav-actions .btn{display:none;}
  .burger{display:inline-flex;}
  .nav-inner{height:60px;}
  .section{padding:64px 0;}
  .page-head{padding:22px 0 56px;}
  .check-item{grid-template-columns:56px 160px 1fr;gap:20px;}
  .check-item .text-arrow{grid-column:2 / -1;justify-self:start;}
  .compare-head{display:none;}
  .compare-row{grid-template-columns:1fr;gap:14px;padding:20px 22px;}
  .metrics{grid-template-columns:repeat(3,1fr);}
  .conclusion{grid-template-columns:1fr;padding:36px;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:32px;}
  .head-stats{gap:22px;}
  .path-steps{grid-template-columns:1fr 1fr;gap:26px 0;}
  .path-step:nth-child(3)::before{left:50%;}
  .path-step:nth-child(1)::before{left:50%;}
  .path-step:nth-child(2)::before{right:50%;}
  .path-step:nth-child(3){margin-top:16px;}
  .path-step:nth-child(4){margin-top:16px;}
  .check-item{grid-template-columns:1fr;gap:16px;padding:22px 0;}
  .check-num{font-size:32px;}
  .check-media{max-width:100%;}
  .check-item .text-arrow{grid-column:auto;}
  .metrics{grid-template-columns:1fr 1fr;}
  .rail-card{flex:0 0 260px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .page-head h1{font-size:28px;}
  .metrics{grid-template-columns:1fr;}
  .path-steps{grid-template-columns:1fr;}
  .path-step::before{display:none;}
  .path-step{padding:0 0 0 30px;text-align:left;}
  .path-dot{left:0;top:4px;transform:none;}
  .path-step b,.path-step span{text-align:left;}
  .head-visual img{aspect-ratio:16/10;}
  .conclusion .actions{flex-direction:column;align-items:stretch;}
  .conclusion .actions .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --bg:#F5F8FC;
  --bg-alt:#EDF3FA;
  --surface:#FFFFFF;
  --ink:#0F2233;
  --ink-2:#3D5567;
  --muted:#7A8FA3;
  --line:#E2EAF3;
  --primary:#F0562F;
  --primary-ink:#C93F1C;
  --blue:#12508F;
  --blue-soft:#E4EEFA;
  --mint:#12A594;
  --mint-soft:#E3F6F3;
  --amber:#F5A524;
  --radius:16px;
  --radius-lg:20px;
  --radius-hero:24px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(15,34,51,.06);
  --shadow-2:0 10px 30px rgba(15,34,51,.08);
  --shadow-3:0 18px 48px rgba(15,34,51,.12);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:Inter,"Helvetica Neue",system-ui,-apple-system,sans-serif;
  --container:1200px;
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-2);
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{
  margin:0 0 .6em;
  color:var(--ink);
  font-family:var(--font-cn);
  font-weight:700;
  line-height:1.35;
  letter-spacing:.2px;
}
p{margin:0 0 1.25em;}
a{color:var(--blue);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease,transform .18s ease;}
a:hover{color:var(--primary);}
img{max-width:100%;display:block;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;box-shadow:0 0 0 4px rgba(240,86,47,.18);border-radius:6px;}

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

/* ============ 按钮体系 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:12px;
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .18s ease,background-color .18s ease,color .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(240,86,47,.22);}
.btn-primary:hover{background:var(--primary-ink);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(240,86,47,.28);}
.btn-primary:active{transform:translateY(1px);}
.btn-outline{background:var(--surface);color:var(--blue);border-color:var(--blue);}
.btn-outline:hover{background:var(--blue-soft);color:var(--blue);transform:translateY(-1px);}
.btn-outline:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:var(--ink);padding:0 6px;height:auto;}
.btn-ghost:hover{color:var(--primary);}
.btn-ghost svg{transition:transform .18s ease;}
.btn-ghost:hover svg{transform:translateX(2px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px;}

.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;font-size:15px;}
.text-link svg{transition:transform .18s ease;}
.text-link:hover{color:var(--primary-ink);}
.text-link:hover svg{transform:translateX(3px);}

/* ============ 顶部命令栏 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1);}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:68px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--ink);
  font-weight:700;
  font-size:17px;
  flex:0 0 auto;
}
.logo:hover{color:var(--ink);}
.logo-mark{
  width:30px;
  height:30px;
  color:var(--primary);
  flex:0 0 auto;
}
.logo-text{letter-spacing:.4px;}

.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  flex:1 1 auto;
  justify-content:center;
}
.main-nav a{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:15px;
  font-weight:500;
  color:var(--ink-2);
  border-radius:8px;
}
.main-nav a:hover{color:var(--blue);background:var(--bg-alt);}
.main-nav a.active{color:var(--blue);font-weight:600;}
.main-nav a.active::after{
  content:"";
  position:absolute;
  left:12px;
  right:12px;
  bottom:-2px;
  height:2px;
  border-radius:2px;
  background:var(--blue);
}

.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.command-search{
  position:relative;
  display:flex;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 12px;
  min-width:230px;
  border-radius:var(--radius-pill);
  background:var(--bg-alt);
  border:1px solid transparent;
  transition:background-color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.command-search:focus-within{
  background:var(--surface);
  border-color:var(--primary);
  box-shadow:0 0 0 4px rgba(240,86,47,.12);
}
.command-search svg{width:18px;height:18px;color:var(--muted);flex:0 0 auto;}
.command-search input{
  border:none;
  background:transparent;
  height:100%;
  width:100%;
  font-size:14px;
  color:var(--ink);
  outline:none;
  box-shadow:none;
  margin:0;
}
.command-search input::placeholder{color:var(--muted);}
.search-kbd{
  font-family:var(--font-num);
  font-size:11px;
  font-weight:600;
  color:var(--muted);
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:6px;
  padding:2px 6px;
  flex:0 0 auto;
}
.icon-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;
  height:40px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--blue);
  transition:background-color .18s ease,color .18s ease,transform .18s ease,border-color .18s ease;
}
.icon-btn:hover{background:var(--blue-soft);color:var(--blue);transform:translateY(-1px);}
.icon-btn svg{width:19px;height:19px;}
.hamburger{
  display:none;
  align-items:center;
  justify-content:center;
  width:40px;
  height:40px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--ink);
  cursor:pointer;
}
.hamburger svg{width:20px;height:20px;}

.nav-drawer{
  position:fixed;
  inset:0;
  z-index:80;
  background:var(--surface);
  padding:24px;
  display:none;
  flex-direction:column;
  gap:20px;
  overflow-y:auto;
}
.nav-drawer.is-open{display:flex;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-close{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
  background:var(--surface);color:var(--ink);cursor:pointer;display:flex;align-items:center;justify-content:center;
}
.drawer-nav{display:flex;flex-direction:column;gap:2px;}
.drawer-nav a{
  padding:14px 12px;
  border-radius:12px;
  color:var(--ink);
  font-size:16px;
  font-weight:500;
  border-bottom:1px solid var(--line);
}
.drawer-nav a:last-child{border-bottom:none;}
.drawer-nav a.active{color:var(--blue);font-weight:600;background:var(--blue-soft);}
.drawer-cta{display:flex;flex-direction:column;gap:12px;margin-top:4px;}
.drawer-cta .btn{width:100%;}

/* ============ 面包屑 ============ */
.breadcrumb{
  padding:22px 0 0;
  font-size:13px;
  color:var(--muted);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:#C6D4E2;}
.breadcrumb .current{color:var(--ink-2);font-weight:600;}

/* ============ 页头 ============ */
.page-hero{padding:36px 0 64px;}
.hero-grid{display:flex;align-items:center;gap:48px;}
.hero-copy{flex:1 1 56%;min-width:0;}
.hero-visual{flex:1 1 44%;min-width:0;position:relative;}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 14px;
  border-radius:var(--radius-pill);
  background:var(--mint-soft);
  color:#0C7A6D;
  font-size:13px;
  font-weight:600;
  letter-spacing:.3px;
}
.page-hero h1{
  font-size:clamp(30px,4vw,46px);
  font-weight:750;
  line-height:1.28;
  margin:18px 0 18px;
  letter-spacing:.4px;
}
.hero-lead{
  font-size:17px;
  color:var(--ink-2);
  max-width:640px;
  margin-bottom:26px;
}
.progress-hint{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:18px 20px;
  box-shadow:var(--shadow-1);
  max-width:520px;
}
.progress-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-size:14px;
  color:var(--ink-2);
  margin-bottom:12px;
}
.progress-top strong{color:var(--ink);font-weight:600;}
.progress-top .pct{font-family:var(--font-num);font-weight:700;color:var(--primary);font-size:15px;}
.progress-track{
  height:8px;
  border-radius:var(--radius-pill);
  background:var(--bg-alt);
  overflow:hidden;
}
.progress-bar{
  height:100%;
  width:100%;
  border-radius:var(--radius-pill);
  background:linear-gradient(90deg,var(--blue) 0%,var(--primary) 100%);
}
.hero-visual img{
  width:100%;
  aspect-ratio:4 / 3;
  object-fit:cover;
  border-radius:var(--radius-hero);
  box-shadow:var(--shadow-2);
  border:1px solid var(--line);
}
.hero-visual::before{
  content:"";
  position:absolute;
  width:180px;
  height:180px;
  border-radius:50%;
  background:var(--blue-soft);
  top:-34px;
  right:-26px;
  z-index:-1;
}
.float-card{
  position:absolute;
  left:-14px;
  bottom:24px;
  display:flex;
  align-items:center;
  gap:12px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:12px 18px;
  box-shadow:var(--shadow-3);
}
.float-card .num{
  font-family:var(--font-num);
  font-size:26px;
  font-weight:700;
  color:var(--primary);
  line-height:1;
}
.float-card .label{font-size:13px;color:var(--ink-2);line-height:1.5;}

/* ============ 板块通用 ============ */
.section{padding:88px 0;}
.section-alt{background:var(--bg-alt);}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head h2{
  font-size:clamp(24px,3vw,31px);
  font-weight:700;
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:14px;
}
.section-head h2::before{
  content:"";
  width:4px;
  height:26px;
  border-radius:2px;
  background:var(--primary);
  flex:0 0 auto;
}
.section-head p{color:var(--ink-2);margin-bottom:0;}

/* ============ 竖向时间线 ============ */
.timeline{
  position:relative;
  padding-left:68px;
  margin-top:8px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:21px;
  top:10px;
  bottom:26px;
  width:2px;
  background:var(--line);
}
.tl-item{
  position:relative;
  padding-bottom:40px;
}
.tl-item:last-child{padding-bottom:0;}
.tl-node{
  position:absolute;
  left:-68px;
  top:0;
  width:44px;
  height:44px;
  border-radius:50%;
  background:var(--surface);
  border:2px solid var(--primary);
  color:var(--primary);
  font-family:var(--font-num);
  font-size:14px;
  font-weight:700;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:var(--shadow-1);
}
.tl-item h3{
  font-size:21px;
  font-weight:600;
  margin:6px 0 10px;
}
.tl-item p{color:var(--ink-2);max-width:760px;margin-bottom:14px;}
.tl-meta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--muted);
  background:var(--bg-alt);
  border-radius:var(--radius-pill);
  padding:4px 14px;
}
.tl-meta svg{width:15px;height:15px;color:var(--blue);}
.tl-figure{
  margin-top:18px;
  max-width:560px;
}
.tl-figure img{
  width:100%;
  aspect-ratio:16 / 9;
  object-fit:cover;
  border-radius:var(--radius);
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
}
.tl-figure figcaption{
  font-size:13px;
  color:var(--muted);
  text-align:center;
  margin-top:10px;
}

/* ============ 注意事项 ============ */
.notice-list{margin-top:8px;}
.notice-item{
  display:flex;
  gap:16px;
  background:var(--surface);
  border:1px solid var(--line);
  border-left:4px solid var(--blue);
  border-radius:var(--radius);
  padding:22px 24px;
  margin-bottom:18px;
  box-shadow:var(--shadow-1);
  transition:box-shadow .18s ease,transform .18s ease;
}
.notice-item:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.notice-icon{
  flex:0 0 auto;
  width:40px;
  height:40px;
  border-radius:12px;
  background:var(--blue-soft);
  color:var(--blue);
  display:flex;
  align-items:center;
  justify-content:center;
}
.notice-icon svg{width:20px;height:20px;}
.notice-item h3{font-size:17px;font-weight:600;margin:2px 0 6px;}
.notice-item p{margin:0;font-size:15px;color:var(--ink-2);}

/* ============ 相关分类横滑 ============ */
.related-track{
  display:flex;
  gap:24px;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  padding:4px 24px 20px;
  margin:0 -24px;
  scrollbar-width:none;
}
.related-track::-webkit-scrollbar{display:none;}
.related-card{
  flex:0 0 320px;
  scroll-snap-align:start;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease;
  display:block;
  color:var(--ink-2);
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-3);color:var(--ink-2);}
.related-card img{
  width:100%;
  aspect-ratio:16 / 9;
  object-fit:cover;
  transition:transform .3s ease;
}
.related-card:hover img{transform:scale(1.03);}
.related-body{padding:18px 20px 22px;}
.related-body h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.related-body p{font-size:14px;color:var(--ink-2);margin-bottom:10px;}

/* ============ FAQ ============ */
.faq-list{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  max-width:900px;
}
.faq-item{border-bottom:1px solid var(--line);position:relative;}
.faq-item:last-child{border-bottom:none;}
.faq-item::before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  bottom:0;
  width:3px;
  background:var(--primary);
  transform:scaleY(0);
  transform-origin:top;
  transition:transform .18s ease;
}
.faq-item[open]::before{transform:scaleY(1);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  gap:14px;
  padding:22px 26px;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  transition:background-color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:var(--bg);}
.faq-q{
  font-family:var(--font-num);
  font-size:14px;
  font-weight:700;
  color:var(--primary);
  flex:0 0 auto;
}
.faq-arrow{
  margin-left:auto;
  flex:0 0 auto;
  width:18px;
  height:18px;
  color:var(--muted);
  transition:transform .2s ease;
}
.faq-item[open] .faq-arrow{transform:rotate(180deg);}
.faq-answer{
  padding:0 26px 24px 66px;
  color:var(--ink-2);
  font-size:15.5px;
  line-height:1.9;
  max-width:800px;
}
.faq-answer p:last-child{margin-bottom:0;}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;
  background:var(--blue-soft);
  border-radius:var(--radius-hero);
  padding:48px 48px;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-40px;
  top:-30px;
  width:420px;
  height:320px;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  opacity:.22;
  pointer-events:none;
}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;gap:40px;flex-wrap:wrap;}
.cta-copy{flex:1 1 52%;min-width:280px;}
.cta-copy h2{font-size:clamp(22px,2.6vw,28px);margin-bottom:12px;}
.cta-copy p{margin-bottom:0;color:var(--ink-2);max-width:560px;}
.cta-actions{flex:1 1 40%;display:flex;gap:14px;flex-wrap:wrap;justify-content:flex-end;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--surface);
  border-top:1px solid var(--line);
  padding:64px 0 0;
  margin-top:0;
}
.footer-grid{padding-bottom:44px;}
.footer-brand .logo{margin-bottom:16px;}
.footer-about{font-size:14.5px;color:var(--ink-2);max-width:340px;margin-bottom:20px;}
.footer-social{display:flex;gap:10px;}
.footer-social a{
  width:38px;
  height:38px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--bg);
  color:var(--blue);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  transition:background-color .18s ease,color .18s ease,transform .18s ease;
}
.footer-social a:hover{background:var(--blue-soft);color:var(--blue);transform:translateY(-2px);}
.footer-social svg{width:18px;height:18px;}
.footer-col-title{
  font-size:14px;
  font-weight:700;
  color:var(--ink);
  margin:6px 0 16px;
  letter-spacing:.4px;
}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:14.5px;color:var(--ink-2);}
.footer-col ul a:hover{color:var(--primary);}
.footer-sub p{font-size:14.5px;color:var(--ink-2);margin-bottom:16px;}
.subscribe-form{display:flex;gap:10px;flex-wrap:wrap;}
.subscribe-form input{
  flex:1 1 160px;
  height:48px;
  border-radius:10px;
  border:1px solid var(--line);
  background:var(--bg);
  padding:0 16px;
  font-size:14.5px;
  color:var(--ink);
  margin:0;
  box-shadow:none;
  transition:border-color .18s ease,background-color .18s ease,box-shadow .18s ease;
}
.subscribe-form input:focus{border-color:var(--primary);background:var(--surface);box-shadow:0 0 0 4px rgba(240,86,47,.12);outline:none;}
.subscribe-form input::placeholder{color:var(--muted);}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  font-size:13.5px;
  color:var(--muted);
}
.footer-bottom-links{display:flex;gap:20px;flex-wrap:wrap;}
.footer-bottom-links a{color:var(--muted);}
.footer-bottom-links a:hover{color:var(--primary);}

/* ============ 响应式 ============ */
@media screen and (max-width:1220px){
  .command-search{min-width:180px;}
  .main-nav a{padding:8px 9px;font-size:14.5px;}
}
@media screen and (max-width:1023px){
  .section{padding:64px 0;}
  .main-nav{display:none;}
  .header-actions .command-search{display:none;}
  .header-actions .icon-btn{display:none;}
  .hamburger{display:inline-flex;}
  .header-inner{justify-content:space-between;}
  .hero-grid{flex-direction:column;gap:34px;}
  .hero-copy,.hero-visual{flex:1 1 auto;width:100%;}
  .hero-visual::before{display:none;}
  .float-card{left:16px;bottom:16px;}
  .cta-band{padding:40px 34px;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{padding-bottom:32px;}
}
@media screen and (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .page-hero{padding:26px 0 48px;}
  .timeline{padding-left:52px;}
  .timeline::before{left:15px;top:6px;bottom:20px;}
  .tl-node{left:-52px;width:32px;height:32px;font-size:12px;border-width:2px;}
  .tl-item{padding-bottom:34px;}
  .tl-item h3{font-size:18.5px;}
  .notice-item{padding:18px;gap:14px;}
  .notice-icon{width:34px;height:34px;border-radius:10px;}
  .faq-item summary{padding:18px;font-size:16px;gap:10px;}
  .faq-answer{padding:0 18px 20px 48px;}
  .related-card{flex:0 0 262px;}
  .cta-band{padding:32px 22px;border-radius:20px;}
  .cta-actions .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
  .tl-figure{max-width:100%;}
}
@media screen and (max-width:519px){
  .page-hero h1{font-size:28px;}
  .hero-lead{font-size:16px;}
  .progress-top{flex-direction:column;align-items:flex-start;gap:6px;}
  .subscribe-form input{flex:1 1 100%;}
  .subscribe-form .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category4 */
:root{
  --bg:#F5F8FC;
  --bg-alt:#EDF3FA;
  --surface:#FFFFFF;
  --ink:#0F2233;
  --ink-2:#3D5567;
  --muted:#7A8FA3;
  --line:#E2EAF3;
  --primary:#F0562F;
  --primary-ink:#C93F1C;
  --blue:#12508F;
  --blue-soft:#E4EEFA;
  --mint:#12A594;
  --amber:#F5A524;
  --radius:16px;
  --radius-lg:20px;
  --shadow-1:0 1px 2px rgba(15,34,51,.06);
  --shadow-2:0 10px 30px rgba(15,34,51,.08);
  --shadow-3:0 18px 48px rgba(15,34,51,.12);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{margin:0;font-family:var(--font-cn);font-size:16px;line-height:1.8;color:var(--ink-2);background:var(--bg);-webkit-font-smoothing:antialiased;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.35;}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
a{color:inherit;text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease,transform .18s ease;}
img{max-width:100%;height:auto;display:block;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;font-size:inherit;line-height:1.5;padding:0;border:0;background:none;color:inherit;cursor:pointer;}
input{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:8px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section-alt{background:var(--bg-alt);}
.grid-margin-x{margin-left:-12px;margin-right:-12px;}
.grid-margin-x>.cell{padding-left:12px;padding-right:12px;}

/* ---------- 按钮与链接 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:12px;font-size:15px;font-weight:600;white-space:nowrap;border:1px solid transparent;transition:all .18s ease;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(240,86,47,.24);}
.btn-primary:hover{background:var(--primary-ink);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 12px rgba(240,86,47,.2);}
.btn-outline{background:#fff;border-color:var(--blue);color:var(--blue);}
.btn-outline:hover{background:var(--blue-soft);color:var(--blue);transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;font-size:14px;}
.link-arrow svg{transition:transform .18s ease;}
.link-arrow:hover{color:var(--primary-ink);}
.link-arrow:hover svg{transform:translateX(2px);}
.eyebrow{display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;background:rgba(18,165,148,.12);color:#0B7A6D;font-size:13px;font-weight:600;letter-spacing:.4px;}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--mint);}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--surface);border-bottom:1px solid var(--line);}
.site-header.is-scrolled{box-shadow:var(--shadow-1);}
.nav-inner{display:flex;align-items:center;gap:20px;height:68px;}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--ink);flex:0 0 auto;}
.logo-mark{width:30px;height:30px;color:var(--primary);flex:0 0 auto;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:6px;}
.main-nav a{position:relative;padding:10px 12px;border-radius:10px;font-size:15px;color:var(--ink-2);transition:all .18s ease;}
.main-nav a:hover{color:var(--blue);background:var(--blue-soft);}
.main-nav a.active{color:var(--blue);font-weight:600;}
.main-nav a.active::after{content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;border-radius:2px;background:var(--blue);}
.nav-tools{display:flex;align-items:center;gap:12px;margin-left:auto;}
.command-search{display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;border-radius:999px;background:var(--bg-alt);border:1px solid transparent;transition:all .18s ease;}
.command-search svg{color:var(--muted);flex:0 0 auto;}
.command-search input{width:132px;border:0;background:transparent;outline:none;font-size:14px;color:var(--ink);}
.command-search input::placeholder{color:var(--muted);}
.command-search .kbd{font-family:var(--font-num);font-size:11px;color:var(--muted);background:#fff;border:1px solid var(--line);border-radius:6px;padding:1px 6px;}
.command-search:focus-within{background:#fff;border-color:var(--primary);box-shadow:0 0 0 3px rgba(240,86,47,.12);}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:12px;border:1px solid var(--line);color:var(--blue);background:#fff;transition:all .18s ease;}
.icon-btn:hover{background:var(--blue-soft);border-color:var(--blue);transform:translateY(-1px);}
.nav-toggle{display:none;align-items:center;justify-content:center;width:40px;height:40px;border-radius:12px;border:1px solid var(--line);color:var(--ink);background:#fff;}
.nav-toggle:hover{background:var(--bg-alt);}
.drawer{position:fixed;left:0;right:0;top:68px;bottom:0;z-index:55;background:var(--surface);padding:24px;overflow-y:auto;border-top:1px solid var(--line);opacity:0;transform:translateY(-8px);pointer-events:none;transition:opacity .2s ease,transform .2s ease;}
.drawer.open{opacity:1;transform:none;pointer-events:auto;}
.drawer nav{display:flex;flex-direction:column;margin-bottom:22px;}
.drawer nav a{padding:14px 2px;font-size:16px;color:var(--ink);border-bottom:1px solid var(--line);}
.drawer nav a.active{color:var(--blue);font-weight:600;}
.drawer .command-search{width:100%;height:48px;border-radius:14px;margin-bottom:18px;}
.drawer .command-search input{width:100%;}
.drawer .btn{width:100%;}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:26px;}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:var(--line);}
.breadcrumb .current{color:var(--ink-2);}

/* ---------- 页头 ---------- */
.page-head{position:relative;padding:56px 0 72px;background:linear-gradient(180deg,var(--blue-soft) 0%,var(--bg) 88%);overflow:hidden;}
.page-head::before{content:"";position:absolute;left:-140px;top:-120px;width:380px;height:380px;border-radius:50%;background:rgba(18,165,148,.10);}
.page-head::after{content:"";position:absolute;right:-120px;bottom:-160px;width:320px;height:320px;border-radius:50%;background:rgba(240,86,47,.07);}
.page-head .container{position:relative;z-index:1;}
.page-head h1{font-size:clamp(30px,4vw,46px);font-weight:750;letter-spacing:-.4px;margin:16px 0 14px;max-width:640px;}
.page-head .lead{font-size:16.5px;color:var(--ink-2);max-width:600px;margin-bottom:0;line-height:1.85;}
.faq-search{display:flex;align-items:center;gap:10px;height:56px;padding:0 20px;margin-top:28px;max-width:620px;background:var(--surface);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-2);transition:all .18s ease;}
.faq-search svg{flex:0 0 auto;color:var(--muted);}
.faq-search input{flex:1;height:100%;border:0;background:transparent;outline:none;font-size:15.5px;color:var(--ink);}
.faq-search input::placeholder{color:var(--muted);}
.faq-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(240,86,47,.12),var(--shadow-2);}
.filter-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;}
.tag{display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;background:var(--surface);border:1px solid var(--line);color:var(--ink-2);font-size:14px;transition:all .18s ease;}
.tag:hover{border-color:var(--blue);color:var(--blue);}
.tag.active{background:var(--blue);border-color:var(--blue);color:#fff;font-weight:600;}
.head-figure{margin:32px 0 0;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-3);background:var(--surface);}
.head-figure img{width:100%;aspect-ratio:3/2;object-fit:cover;}

/* ---------- 板块标题 ---------- */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.section-head h2{font-size:clamp(24px,3vw,31px);font-weight:700;letter-spacing:-.2px;margin-bottom:10px;}
.section-head .sub{font-size:15px;color:var(--muted);max-width:640px;margin:0;}
.section-head .side{flex:0 0 auto;padding-bottom:6px;}

/* ---------- FAQ 手风琴 ---------- */
.faq-group+.faq-group{margin-top:40px;}
.faq-group-title{display:flex;align-items:center;gap:10px;font-size:19px;margin-bottom:16px;}
.faq-group-title::before{content:"";width:22px;height:3px;border-radius:3px;background:var(--primary);}
.faq-list{background:var(--surface);border:1px solid var(--line);border-radius:24px;overflow:hidden;box-shadow:var(--shadow-1);}
.faq-item{position:relative;border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-item.open::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--primary);}
.faq-q{width:100%;display:flex;align-items:center;gap:14px;padding:20px 24px;text-align:left;font-size:17px;font-weight:600;color:var(--ink);transition:background-color .18s ease;}
.faq-q:hover{background:var(--bg-alt);}
.faq-no{font-family:var(--font-num);font-size:14px;font-weight:700;color:var(--primary);min-width:26px;flex:0 0 auto;}
.faq-arrow{margin-left:auto;flex:0 0 auto;color:var(--muted);transition:transform .22s ease,color .22s ease;}
.faq-item.open .faq-arrow{transform:rotate(180deg);color:var(--primary);}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .28s ease;}
.faq-item.open .faq-a{grid-template-rows:1fr;}
.faq-a-inner{overflow:hidden;}
.faq-a p{padding:0 24px 22px 64px;max-width:760px;font-size:15.5px;color:var(--ink-2);}
.faq-empty{display:none;padding:56px 24px;text-align:center;}
.faq-empty svg{width:88px;height:88px;color:var(--muted);margin:0 auto 16px;}
.faq-empty p{color:var(--muted);font-size:15px;}
.faq-foot{margin-top:28px;display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14.5px;color:var(--muted);}
.faq-foot a{color:var(--blue);font-weight:600;}
.faq-foot a:hover{color:var(--primary);}

/* ---------- 口碑横滑 ---------- */
.voice-track{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding:6px 24px 26px;margin:0 -24px;scrollbar-width:none;}
.voice-track::-webkit-scrollbar{display:none;}
.voice-card{flex:0 0 300px;scroll-snap-align:start;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-1);transition:box-shadow .22s ease,transform .22s ease;}
.voice-card:hover{box-shadow:var(--shadow-3);transform:translateY(-4px);}
.voice-top{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.avatar{width:40px;height:40px;flex:0 0 auto;border-radius:50%;background:var(--bg-alt);color:var(--blue);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;}
.voice-name{margin:0;font-size:15px;font-weight:600;color:var(--ink);}
.stars{font-size:13px;letter-spacing:2px;color:var(--amber);line-height:1.2;}
.voice-text{margin:0 0 14px;font-size:14.5px;line-height:1.75;color:var(--ink-2);}
.voice-tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;background:rgba(18,165,148,.12);color:#0B7A6D;font-size:12.5px;font-weight:600;}

/* ---------- 数据证明条 ---------- */
.proof-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:34px 24px;text-align:center;box-shadow:var(--shadow-1);height:100%;transition:box-shadow .22s ease,transform .22s ease;}
.proof-item:hover{box-shadow:var(--shadow-3);transform:translateY(-4px);}
.proof-num{font-family:var(--font-num);font-size:42px;font-weight:700;line-height:1;letter-spacing:-1px;color:var(--primary);}
.proof-num span{font-size:20px;font-weight:600;margin-left:2px;}
.proof-label{margin:14px 0 0;font-size:15px;color:var(--ink-2);}
.proof-note{margin:6px 0 0;font-size:13px;color:var(--muted);}

/* ---------- CTA 带 ---------- */
.cta-band{position:relative;overflow:hidden;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:32px;padding:48px;border-radius:24px;background:linear-gradient(120deg,var(--blue-soft) 0%,#F5F8FC 100%);border:1px solid var(--line);}
.cta-band::after{content:"";position:absolute;right:-60px;top:-50px;width:360px;height:280px;background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;opacity:.16;border-radius:24px;pointer-events:none;}
.cta-band>*{position:relative;z-index:1;}
.cta-band h2{font-size:clamp(22px,2.6vw,28px);margin-bottom:12px;}
.cta-band p{max-width:560px;color:var(--ink-2);font-size:15.5px;margin:0;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--surface);border-top:1px solid var(--line);padding:64px 0 0;margin-top:8px;}
.footer-grid{margin-bottom:40px;}
.footer-brand .logo{margin-bottom:16px;}
.footer-about{font-size:14.5px;color:var(--muted);max-width:340px;margin-bottom:20px;}
.footer-social{display:flex;gap:10px;}
.footer-social a{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:12px;border:1px solid var(--line);color:var(--blue);background:#fff;transition:all .18s ease;}
.footer-social a:hover{background:var(--blue-soft);border-color:var(--blue);transform:translateY(-2px);}
.footer-social svg{width:18px;height:18px;}
.footer-col-title{margin:0 0 16px;font-size:14px;font-weight:700;color:var(--ink);letter-spacing:.4px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:14.5px;color:var(--muted);}
.footer-col ul a:hover{color:var(--primary);}
.footer-contact{font-size:14.5px;color:var(--muted);margin-bottom:16px;}
.subscribe-form{display:flex;gap:10px;}
.subscribe-form input{flex:1;height:48px;padding:0 16px;border:1px solid var(--line);border-radius:10px;background:var(--bg);outline:none;font-size:14.5px;transition:all .18s ease;min-width:0;}
.subscribe-form input:focus{border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px rgba(240,86,47,.12);}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;padding:22px 0;border-top:1px solid var(--line);}
.footer-bottom p{margin:0;font-size:13px;color:var(--muted);}
.footer-bottom-links{display:flex;gap:18px;}
.footer-bottom-links a{font-size:13px;color:var(--muted);}
.footer-bottom-links a:hover{color:var(--primary);}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .main-nav{display:none;}
  .command-search.desk{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-inner{gap:12px;}
  .section{padding:64px 0;}
  .page-head{padding:36px 0 56px;}
  .cta-band{padding:36px;}
}
@media screen and (min-width:1024px){
  .drawer{display:none;}
  .faq-list{display:block;}
}
@media screen and (max-width:767px){
  .container{padding:0 16px;}
  .grid-margin-x{margin-left:-8px;margin-right:-8px;}
  .grid-margin-x>.cell{padding-left:8px;padding-right:8px;}
  .section{padding:48px 0;}
  .nav-inner{height:60px;}
  .drawer{top:60px;padding:20px;}
  .page-head h1{margin-top:12px;}
  .head-figure{margin-top:28px;}
  .faq-q{padding:18px 18px;font-size:15.5px;gap:10px;}
  .faq-a p{padding:0 18px 20px 52px;font-size:15px;}
  .cta-band{padding:28px 20px;border-radius:20px;}
  .cta-actions .btn{width:100%;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;margin-bottom:28px;}
  .voice-track{padding:4px 16px 22px;margin:0 -16px;}
  .voice-card{flex:0 0 268px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .subscribe-form{flex-direction:column;}
  .subscribe-form .btn{width:100%;}
  .footer-col-title{cursor:pointer;}
  .footer-col ul{display:none;}
  .footer-col.open ul{display:block;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  html{scroll-behavior:auto;}
}