/* roulang page: index */
:root{
  --brand-1:#0F9B8E;
  --brand-2:#17C0A9;
  --brand-3:#7BE0C6;
  --accent-1:#FF7A59;
  --accent-2:#FFC46B;
  --ink:#0E1F1C;
  --ink-2:#40534F;
  --ink-3:#788B87;
  --line:#E3EDE9;
  --surface:#FFFFFF;
  --bg:#F6FAF8;
  --bg-warm:#FFF7F2;
  --bg-mint:#EAF6F2;
  --grad-brand:linear-gradient(120deg,#0F9B8E 0%,#17C0A9 52%,#7BE0C6 100%);
  --grad-accent:linear-gradient(120deg,#FF7A59 0%,#FFC46B 100%);
  --r-xs:10px;
  --r-sm:14px;
  --r-md:20px;
  --r-lg:28px;
  --r-pill:999px;
  --sh-1:0 2px 6px rgba(14,31,28,.04),0 10px 24px rgba(15,155,142,.06);
  --sh-2:0 8px 20px rgba(14,31,28,.06),0 24px 56px rgba(15,155,142,.12);
  --container:1200px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:var(--brand-1);text-decoration:none;transition:color 180ms var(--ease);}
a:hover{color:var(--brand-2);}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
input,textarea{font-family:inherit;font-size:15px;color:var(--ink);}
:focus-visible{outline:2px solid var(--accent-1);outline-offset:2px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section-tight{padding:56px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.section-head h2{font-size:clamp(24px,2.6vw,34px);line-height:1.25;font-weight:700;letter-spacing:-.01em;}
.section-head p{color:var(--ink-2);font-size:15px;line-height:1.7;margin-top:10px;max-width:640px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand-1);background:var(--bg-mint);border-radius:var(--r-pill);padding:5px 14px;margin-bottom:16px;}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-2);}
.link-more{font-size:14px;font-weight:600;color:var(--brand-1);display:inline-flex;align-items:center;gap:6px;white-space:nowrap;}
.link-more span{transition:transform 180ms var(--ease);display:inline-block;}
.link-more:hover span{transform:translateX(4px);}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-pill);padding:12px 26px;font-size:15px;font-weight:600;line-height:1.2;min-height:46px;transition:transform 180ms var(--ease),box-shadow 180ms var(--ease),filter 180ms var(--ease),background-position 180ms var(--ease),color 180ms var(--ease),border-color 180ms var(--ease);}
.btn-primary{background:var(--grad-accent);background-size:160% 100%;color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--sh-2);background-position:100% 0;color:#fff;}
.btn-primary:active{transform:translateY(0);filter:brightness(.96);}
.btn-ghost{background:var(--bg-mint);color:var(--brand-1);}
.btn-ghost:hover{transform:translateY(-2px);box-shadow:var(--sh-1);color:var(--brand-1);}
.btn-ghost:active{transform:translateY(0);filter:brightness(.96);}
.btn-outline{background:#fff;border:1.5px solid var(--brand-1);color:var(--brand-1);}
.btn-outline:hover{transform:translateY(-2px);box-shadow:var(--sh-1);color:var(--brand-1);background:var(--bg-mint);}
.btn-outline:active{transform:translateY(0);filter:brightness(.97);}
.btn-sm{padding:9px 20px;min-height:40px;font-size:14px;}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--sh-1);}
.nav-inner{display:flex;align-items:center;gap:18px;height:76px;transition:height 180ms var(--ease);}
.site-header.is-scrolled .nav-inner{height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{width:30px;height:30px;border-radius:8px;background:var(--grad-brand);display:grid;place-items:center;box-shadow:0 4px 10px rgba(15,155,142,.24);}
.brand-mark svg{width:17px;height:17px;}
.brand-name{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:-.01em;white-space:nowrap;}
.brand:hover .brand-name{color:var(--brand-1);}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:6px;}
.nav-links a{padding:8px 13px;border-radius:var(--r-pill);font-size:15px;color:var(--ink-2);font-weight:500;transition:background 180ms var(--ease),color 180ms var(--ease);white-space:nowrap;}
.nav-links a:hover{background:var(--bg-mint);color:var(--brand-1);}
.nav-links a.is-active{background:var(--bg-mint);color:var(--brand-1);font-weight:600;}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.search-box{display:flex;align-items:center;gap:8px;width:216px;background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);padding:8px 14px;transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);}
.search-box:focus-within{border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(23,192,169,.14);}
.search-box svg{width:15px;height:15px;color:var(--ink-3);flex-shrink:0;}
.search-box input{border:0;outline:none;background:transparent;width:100%;font-size:14px;line-height:1.4;padding:0;}
.search-box input::placeholder{color:var(--ink-3);}
.nav-login{font-size:15px;font-weight:500;color:var(--ink-2);padding:8px 6px;border-radius:8px;}
.nav-login:hover{color:var(--brand-1);}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;background:var(--bg-mint);color:var(--brand-1);align-items:center;justify-content:center;}
.nav-toggle svg{width:20px;height:20px;}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:#fff;padding:16px 0 22px;}
.mobile-drawer.is-open{display:block;}
.mobile-drawer a{display:flex;align-items:center;min-height:46px;padding:0 4px;font-size:16px;color:var(--ink-2);border-bottom:1px solid var(--line);}
.mobile-drawer a.is-active{color:var(--brand-1);font-weight:600;}
.mobile-drawer .btn{margin-top:16px;width:100%;}

/* Hero */
.hero{padding:64px 0 76px;background:linear-gradient(180deg,var(--bg-warm) 0%,var(--bg) 68%);position:relative;overflow:hidden;}
.hero::after{content:"";position:absolute;right:-140px;top:-120px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(123,224,198,.28),rgba(123,224,198,0) 70%);pointer-events:none;}
.hero-grid{display:grid;grid-template-columns:6fr 5fr;gap:52px;align-items:center;position:relative;z-index:1;}
.hero h1{font-size:clamp(32px,4.4vw,52px);line-height:1.18;font-weight:800;letter-spacing:-.015em;}
.hero h1 em{font-style:normal;color:var(--brand-1);}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.85;color:var(--ink-2);max-width:540px;}
.hero-cta{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap;}
.hero-note{display:flex;flex-wrap:wrap;gap:8px 20px;margin-top:24px;font-size:13px;color:var(--ink-3);}
.hero-note span{display:inline-flex;align-items:center;gap:6px;}
.hero-note i{width:6px;height:6px;border-radius:50%;background:var(--brand-3);display:inline-block;}
.hero-visual{position:relative;}
.hero-visual img{width:100%;aspect-ratio:4/3.3;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--sh-2);}
.hero-badge{position:absolute;left:-18px;bottom:26px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:14px 18px;box-shadow:var(--sh-2);display:flex;align-items:center;gap:12px;}
.hero-badge .num{font-size:30px;font-weight:800;color:var(--brand-1);line-height:1;font-variant-numeric:tabular-nums;}
.hero-badge .txt{font-size:12px;line-height:1.5;color:var(--ink-2);}

/* 入口能力区 */
.cap-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:stretch;}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease),transform 180ms var(--ease);}
.card:hover{border-color:var(--brand-3);box-shadow:var(--sh-2);transform:translateY(-2px);}
.cap-main{padding:34px;display:flex;flex-direction:column;justify-content:space-between;background:linear-gradient(160deg,#ffffff 0%,var(--bg-mint) 100%);}
.icon-box{width:48px;height:48px;border-radius:14px;background:var(--bg-mint);color:var(--brand-1);display:grid;place-items:center;margin-bottom:22px;}
.icon-box svg{width:22px;height:22px;}
.cap-main h3{font-size:22px;line-height:1.4;font-weight:700;margin-bottom:12px;}
.cap-main p{font-size:15px;line-height:1.85;color:var(--ink-2);max-width:520px;}
.cap-side{display:grid;gap:24px;grid-template-rows:1fr 1fr;}
.cap-small{padding:26px;display:flex;flex-direction:column;gap:10px;}
.cap-small h3{font-size:19px;font-weight:600;line-height:1.4;}
.cap-small p{font-size:14px;line-height:1.75;color:var(--ink-2);}
.cap-link{margin-top:auto;font-size:14px;font-weight:600;color:var(--brand-1);display:inline-flex;align-items:center;gap:6px;padding-top:12px;}
.cap-link span{transition:transform 180ms var(--ease);}
.cap-link:hover span{transform:translateX(4px);}

/* 数据区 */
.stats-wrap{background:var(--bg-mint);border-radius:var(--r-lg);padding:52px 48px;display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center;}
.stats-wrap h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;font-weight:700;margin-bottom:14px;}
.stats-wrap .desc{font-size:15px;line-height:1.85;color:var(--ink-2);}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.stat{background:#fff;border-radius:16px;padding:20px 18px;box-shadow:var(--sh-1);position:relative;overflow:hidden;}
.stat .num{font-size:clamp(30px,3.2vw,42px);font-weight:800;color:var(--brand-1);line-height:1.1;font-variant-numeric:tabular-nums;}
.stat .num.accent{color:var(--accent-1);}
.stat .label{font-size:13px;color:var(--ink-2);margin-top:6px;line-height:1.5;}
.stat .dot{position:absolute;right:14px;top:14px;width:8px;height:8px;border-radius:50%;background:var(--accent-2);}

/* 案例区 */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;padding-top:24px;}
.case-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);overflow:hidden;transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease),transform 180ms var(--ease);}
.case-card:nth-child(2){transform:translateY(-24px);}
.case-card:hover{border-color:var(--brand-3);box-shadow:var(--sh-2);transform:translateY(-2px);}
.case-card:nth-child(2):hover{transform:translateY(-26px);}
.case-thumb{overflow:hidden;border-radius:0;}
.case-thumb img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform 320ms var(--ease);}
.case-card:hover .case-thumb img{transform:scale(1.03);}
.case-body{padding:22px 24px 26px;}
.tag{display:inline-block;font-size:12px;font-weight:600;color:var(--brand-1);background:var(--bg-mint);border-radius:var(--r-pill);padding:4px 12px;line-height:1.4;}
.tag-warm{color:#C1471F;background:rgba(255,122,89,.12);}
.case-body h3{font-size:19px;font-weight:600;line-height:1.4;margin:14px 0 8px;}
.case-body p{font-size:14px;line-height:1.75;color:var(--ink-2);}

/* 方案区 */
.plan-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start;}
.plan-intro h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;font-weight:700;}
.plan-intro p{margin-top:16px;font-size:15px;line-height:1.85;color:var(--ink-2);}
.plan-intro .btn{margin-top:28px;}
.plan-list{display:grid;gap:0;}
.plan-item{display:grid;grid-template-columns:56px 1fr;gap:18px;padding:24px 0;border-bottom:1px solid var(--line);}
.plan-item:first-child{padding-top:0;}
.plan-item:last-child{border-bottom:0;}
.plan-num{font-size:15px;font-weight:800;color:var(--brand-1);font-variant-numeric:tabular-nums;background:var(--bg-mint);border-radius:12px;height:40px;display:grid;place-items:center;}
.plan-item h3{font-size:18px;font-weight:600;line-height:1.4;margin-bottom:6px;}
.plan-item p{font-size:14px;line-height:1.75;color:var(--ink-2);}

/* CMS 列表 */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);overflow:hidden;transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease),transform 180ms var(--ease);}
.post-card:hover{border-color:var(--brand-3);box-shadow:var(--sh-2);transform:translateY(-2px);}
.post-thumb{display:block;overflow:hidden;}
.post-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform 320ms var(--ease);}
.post-card:hover .post-thumb img{transform:scale(1.03);}
.post-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1;}
.post-meta-row{display:flex;align-items:center;gap:12px;justify-content:space-between;margin-bottom:12px;}
.post-title{font-size:18px;font-weight:600;line-height:1.45;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:var(--ink);}
.post-title a{color:inherit;}
.post-title a:hover{color:var(--brand-1);}
.post-excerpt{font-size:14px;line-height:1.75;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:16px;}
.post-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3);}
.post-foot .arrow{color:var(--brand-1);font-weight:600;transition:transform 180ms var(--ease);}
.post-card:hover .post-foot .arrow{transform:translateX(4px);}
.empty-state{grid-column:1/-1;min-height:180px;border-radius:var(--r-md);background:var(--bg-mint);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;color:var(--ink-2);font-size:15px;padding:32px;text-align:center;}
.empty-state svg{width:32px;height:32px;color:var(--brand-3);}
.empty-state a{font-weight:600;}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start;}
.faq-aside h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;font-weight:700;}
.faq-aside p{margin-top:14px;font-size:15px;line-height:1.85;color:var(--ink-2);}
.faq-card{margin-top:24px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:22px;box-shadow:var(--sh-1);}
.faq-card h3{font-size:16px;font-weight:600;margin-bottom:6px;}
.faq-card p{font-size:14px;line-height:1.75;color:var(--ink-2);margin-bottom:12px;}
.faq-list{display:grid;gap:12px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);box-shadow:var(--sh-1);overflow:hidden;transition:background 180ms var(--ease),border-color 180ms var(--ease);}
.faq-item[open]{background:var(--bg-warm);border-color:var(--brand-3);}
.faq-item summary{list-style:none;cursor:pointer;padding:16px 18px;font-size:16px;font-weight:600;color:var(--ink);display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:44px;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";font-size:20px;font-weight:400;color:var(--brand-1);line-height:1;transition:transform 180ms var(--ease);flex-shrink:0;}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item .answer{padding:0 18px 18px;font-size:15px;line-height:1.8;color:var(--ink-2);}

/* CTA 联系 */
.cta-board{background:var(--grad-brand);border-radius:var(--r-lg);padding:52px 48px;display:grid;grid-template-columns:6fr 5fr;gap:48px;align-items:center;box-shadow:var(--sh-2);position:relative;overflow:hidden;}
.cta-board::after{content:"";position:absolute;left:-80px;bottom:-120px;width:320px;height:320px;border-radius:50%;background:rgba(255,255,255,.12);pointer-events:none;}
.cta-board h2{font-size:clamp(24px,2.8vw,34px);line-height:1.3;font-weight:700;color:#fff;}
.cta-board p{margin-top:14px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.9);max-width:440px;}
.cta-board .hero-note{margin-top:22px;color:rgba(255,255,255,.85);}
.cta-board .hero-note i{background:rgba(255,255,255,.75);}
.cta-form{background:#fff;border-radius:var(--r-md);padding:26px;box-shadow:var(--sh-2);position:relative;z-index:1;}
.field{margin-bottom:14px;}
.field label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:6px;font-weight:500;}
.field input,.field textarea{width:100%;background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);padding:11px 14px;line-height:1.5;transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(23,192,169,.14);}
.field textarea{min-height:86px;resize:vertical;}
.privacy-note{font-size:12px;line-height:1.7;color:var(--ink-3);margin-top:12px;}

/* 页脚 */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:44px;border-bottom:1px solid rgba(123,224,198,.18);}
.footer-brand .brand-name{color:#fff;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:320px;}
.footer-brand .contact{margin-top:16px;font-size:14px;line-height:1.9;color:rgba(255,255,255,.72);}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.68);}
.footer-col a:hover{color:var(--brand-3);}
.footer-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;padding:22px 0 26px;font-size:13px;color:rgba(255,255,255,.55);}
.footer-bottom .domain{color:rgba(255,255,255,.7);}

/* 响应式 */
@media (max-width:1024px){
  .nav-links,.search-box,.nav-login{display:none;}
  .nav-toggle{display:flex;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-visual img{aspect-ratio:16/10;}
  .hero-badge{left:16px;bottom:16px;}
  .cap-grid{grid-template-columns:1fr;}
  .stats-wrap{grid-template-columns:1fr;gap:28px;padding:40px 32px;}
  .stats{grid-template-columns:repeat(2,1fr);}
  .case-grid{grid-template-columns:repeat(2,1fr);}
  .case-card:nth-child(2){transform:none;}
  .case-card:nth-child(2):hover{transform:translateY(-2px);}
  .plan-grid,.faq-grid,.cta-board{grid-template-columns:1fr;gap:32px;}
  .post-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  .section{padding:64px 0;}
  .section-tight{padding:44px 0;}
  .container{padding:0 20px;}
  .hero{padding:44px 0 56px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px;}
  .cap-main{padding:26px;}
  .stats-wrap{padding:32px 22px;}
  .cta-board{padding:34px 22px;}
  .post-grid{grid-template-columns:1fr;}
  .case-grid{grid-template-columns:1fr;}
}
@media (max-width:520px){
  body{font-size:15px;}
  .hero h1{font-size:30px;}
  .hero-sub{font-size:16px;}
  .hero-cta{flex-direction:column;}
  .hero-cta .btn{width:100%;}
  .stats{grid-template-columns:1fr 1fr;gap:12px;}
  .stat{padding:16px 14px;}
  .stats-wrap{border-radius:var(--r-md);}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .plan-item{grid-template-columns:44px 1fr;gap:14px;}
  .btn{width:100%;}
  .nav-actions .btn-primary{width:auto;}
  .nav-actions{gap:8px;}
  .nav-actions .btn-primary{padding:9px 16px;font-size:14px;min-height:40px;}
  .brand-name{font-size:16px;}
}

/* roulang page: article */
:root{
  --brand-1:#0F9B8E;--brand-2:#17C0A9;--brand-3:#7BE0C6;
  --accent-1:#FF7A59;--accent-2:#FFC46B;
  --ink:#0E1F1C;--ink-2:#40534F;--ink-3:#788B87;
  --line:#E3EDE9;--surface:#FFFFFF;--bg:#F6FAF8;--bg-warm:#FFF7F2;--bg-mint:#EAF6F2;
  --grad-brand:linear-gradient(120deg,#0F9B8E 0%,#17C0A9 52%,#7BE0C6 100%);
  --grad-accent:linear-gradient(120deg,#FF7A59 0%,#FFC46B 100%);
  --r-xs:10px;--r-sm:14px;--r-md:20px;--r-lg:28px;--r-pill:999px;
  --sh-1:0 2px 6px rgba(14,31,28,.04),0 10px 24px rgba(15,155,142,.06);
  --sh-2:0 8px 20px rgba(14,31,28,.06),0 24px 56px rgba(15,155,142,.12);
  --container:1200px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand-1);text-decoration:none;transition:color 180ms var(--ease),background-color 180ms var(--ease)}
a:hover{color:var(--brand-2)}
button{font-family:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--accent-1);outline-offset:2px;border-radius:var(--r-xs)}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;width:100%}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:80;background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--sh-1)}
.nav-wrap{display:flex;align-items:center;gap:22px;height:76px;transition:height 180ms var(--ease)}
.site-header.is-scrolled .nav-wrap{height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:32px;height:32px;border-radius:8px;background:var(--grad-brand);
  display:grid;place-items:center;box-shadow:0 4px 12px rgba(15,155,142,.22);
}
.brand-mark svg{width:20px;height:20px;display:block}
.brand-name{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:.2px;white-space:nowrap}
.brand:hover .brand-name{color:var(--brand-1)}
.nav-links{display:flex;align-items:center;gap:4px;flex:1 1 auto;min-width:0}
.nav-links a{
  display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--ink-2);white-space:nowrap;
  transition:background-color 180ms var(--ease),color 180ms var(--ease);
}
.nav-links a:hover{background:var(--bg-mint);color:var(--brand-1)}
.nav-links a.is-active{background:var(--bg-mint);color:var(--brand-1);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.search-box{position:relative;display:flex;align-items:center}
.search-box .search-ico{
  position:absolute;left:13px;width:16px;height:16px;color:var(--ink-3);pointer-events:none;
}
.search-box input{
  width:224px;height:40px;border-radius:var(--r-pill);border:1px solid var(--line);
  background:var(--surface);padding:0 16px 0 36px;font-size:14px;color:var(--ink);
  transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);font-family:inherit;
}
.search-box input::placeholder{color:var(--ink-3)}
.search-box input:focus{outline:none;border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(23,192,169,.16)}
.link-login{font-size:15px;color:var(--ink-2);padding:8px 4px;font-weight:500}
.link-login:hover{color:var(--brand-1)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);border:1.5px solid transparent;font-weight:600;font-size:15px;
  padding:12px 26px;line-height:1.2;text-align:center;
  transition:transform 180ms var(--ease),box-shadow 180ms var(--ease),filter 180ms var(--ease),background-color 180ms var(--ease),color 180ms var(--ease),border-color 180ms var(--ease);
}
.btn:active{transform:translateY(0);filter:brightness(.96)}
.btn-primary{background:var(--grad-accent);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);filter:brightness(1.04)}
.btn-outline{background:var(--surface);border-color:var(--brand-1);color:var(--brand-1)}
.btn-outline:hover{background:var(--bg-mint);color:var(--brand-1);transform:translateY(-2px);box-shadow:var(--sh-1)}
.btn-ghost{background:var(--bg-mint);color:var(--brand-1)}
.btn-ghost:hover{color:var(--brand-1);transform:translateY(-2px);box-shadow:var(--sh-1)}
.btn-sm{padding:9px 20px;font-size:14px}
.menu-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;border-radius:var(--r-sm);background:var(--bg-mint);border:1px solid var(--line);
  padding:0 12px;align-items:flex-start;
}
.menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-1)}

/* ---------- Article hero ---------- */
.article-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(160deg,var(--bg-warm) 0%,var(--bg-mint) 58%,var(--bg) 100%);
  border-bottom:1px solid var(--line);padding:34px 0 40px;
}
.article-hero::after{
  content:"";position:absolute;right:-90px;top:-70px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle at 30% 30%,rgba(255,196,107,.28),rgba(255,196,107,0) 68%);
  pointer-events:none;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:14px}
.breadcrumb a{color:var(--ink-3)}
.breadcrumb a:hover{color:var(--brand-1)}
.breadcrumb .sep{color:var(--line);font-weight:400}
.breadcrumb .current{color:var(--ink-2);font-weight:600}
.chip{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--bg-mint);color:var(--brand-1);font-size:12.5px;font-weight:600;letter-spacing:.2px;
}
.chip-sm{height:24px;padding:0 11px;font-size:12px}
.article-title{
  font-size:clamp(26px,3vw,36px);line-height:1.3;font-weight:800;color:var(--ink);
  margin:14px 0 16px;max-width:900px;letter-spacing:.2px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--ink-3)}
.article-meta .meta-sep{color:#CBDDD8}
.article-meta strong{color:var(--ink-2);font-weight:600}

/* ---------- Layout ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:36px;padding:48px 0 8px;align-items:start}
.article-main{min-width:0}
.article-side{position:sticky;top:96px;min-width:0}

/* ---------- Article body ---------- */
.article-body{
  max-width:760px;font-size:16.5px;line-height:1.9;color:var(--ink-2);
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:36px 40px;box-shadow:var(--sh-1);word-break:break-word;
}
.article-body>*:first-child{margin-top:0}
.article-body>*:last-child{margin-bottom:0}
.article-body p{margin:1.2em 0}
.article-body h2{
  position:relative;margin:40px 0 16px;padding-left:16px;
  font-size:clamp(21px,2.2vw,27px);line-height:1.36;font-weight:700;color:var(--ink);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.36em;width:4px;height:18px;border-radius:3px;background:var(--grad-accent);
}
.article-body h3{margin:28px 0 12px;font-size:20px;line-height:1.4;font-weight:600;color:var(--ink)}
.article-body h4{margin:22px 0 10px;font-size:17px;line-height:1.5;font-weight:600;color:var(--ink)}
.article-body ul,.article-body ol{margin:1.2em 0;padding-left:1.35em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:.42em 0;padding-left:2px}
.article-body ul li::marker{color:var(--brand-1)}
.article-body ol li::marker{color:var(--brand-1);font-weight:700}
.article-body blockquote{
  margin:1.6em 0;padding:16px 22px;background:var(--bg-mint);
  border-left:4px solid var(--brand-2);border-radius:var(--r-xs);color:var(--ink-2);
}
.article-body blockquote p{margin:.4em 0}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;line-height:1.7}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;vertical-align:top}
.article-body th{background:var(--bg-mint);color:var(--ink);font-weight:600}
.article-body img{border-radius:var(--r-md);margin:1.6em auto;height:auto}
.article-body a{color:var(--brand-1);text-decoration:underline;text-decoration-color:var(--brand-3);text-underline-offset:3px}
.article-body a:hover{color:var(--brand-2)}
.article-body code{background:var(--bg-mint);border-radius:6px;padding:2px 6px;font-size:.92em;color:var(--ink)}
.article-body hr{border:0;border-top:1px dashed var(--line);margin:2em 0}

/* ---------- Article end ---------- */
.article-end{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  margin-top:24px;padding:20px 24px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);box-shadow:var(--sh-1);
}
.article-end .end-links{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-3)}
.article-end .end-links a{color:var(--brand-1);font-weight:500}
.article-end .end-links a:hover{color:var(--brand-2)}

/* ---------- Sidebar ---------- */
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px;box-shadow:var(--sh-1);margin-bottom:20px;
}
.side-title{font-size:16px;font-weight:700;color:var(--ink);margin:0 0 14px;display:flex;align-items:center;gap:8px}
.side-title::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-1)}
.hot-list{list-style:none;margin:0;padding:0}
.hot-list li{border-bottom:1px dashed var(--line);padding:11px 0}
.hot-list li:last-child{border-bottom:0;padding-bottom:0}
.hot-list li:first-child{padding-top:0}
.hot-list a{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;line-height:1.6;color:var(--ink-2);font-weight:500}
.hot-list a:hover{color:var(--brand-1)}
.hot-list .num{
  flex:0 0 auto;width:20px;height:20px;border-radius:6px;background:var(--bg-mint);color:var(--brand-1);
  font-size:12px;font-weight:700;display:grid;place-items:center;margin-top:3px;
}
.hot-list li:nth-child(-n+2) .num{background:rgba(255,122,89,.12);color:var(--accent-1)}
.side-card p{font-size:14px;line-height:1.8;color:var(--ink-2);margin:0 0 16px}
.side-card .btn{width:100%}

/* ---------- Related ---------- */
.rec-section{padding:44px 0 72px}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:24px}
.section-title{font-size:clamp(22px,2.4vw,28px);font-weight:700;color:var(--ink);margin:0;line-height:1.3}
.section-sub{font-size:14px;color:var(--ink-3);margin:6px 0 0;line-height:1.7}
.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.rec-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform 180ms var(--ease),box-shadow 180ms var(--ease),border-color 180ms var(--ease);
}
.rec-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--brand-3)}
.rec-thumb{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--bg-mint)}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 300ms var(--ease)}
.rec-card:hover .rec-thumb img{transform:scale(1.03)}
.rec-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.rec-body h3{margin:0;font-size:17px;line-height:1.45;font-weight:600;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-body h3 a{color:var(--ink)}
.rec-body h3 a:hover{color:var(--brand-1)}
.rec-body p{margin:0;font-size:14px;line-height:1.7;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-more{margin-top:auto;font-size:13.5px;font-weight:600;color:var(--brand-1);display:inline-flex;align-items:center;gap:6px}
.rec-more .arrow{transition:transform 180ms var(--ease)}
.rec-card:hover .rec-more .arrow{transform:translateX(4px)}

/* ---------- Empty ---------- */
.empty-state{
  min-height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  background:var(--bg-mint);border-radius:var(--r-md);padding:28px;text-align:center;
}
.empty-state p{margin:0;font-size:15px;color:var(--ink-2)}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:56px 0 0;margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.5fr;gap:36px;padding-bottom:40px}
.footer-brand .brand{margin-bottom:14px}
.footer-brand .brand-name{color:#fff}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);margin:0 0 14px;max-width:320px}
.footer-brand .contact{font-size:13px;line-height:1.9;color:rgba(255,255,255,.56)}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin:0 0 14px}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.66)}
.footer-col a:hover{color:var(--brand-3)}
.footer-col p{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.56);margin:0}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  border-top:1px solid rgba(123,224,198,.22);padding:20px 0 24px;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom .domain{color:rgba(255,255,255,.42)}

/* ---------- Responsive ---------- */
@media (max-width:1180px){
  .search-box input{width:180px}
}
@media (max-width:1024px){
  .nav-links{
    display:none;position:fixed;left:0;right:0;top:64px;
    flex-direction:column;align-items:stretch;gap:4px;
    background:rgba(255,255,255,.98);backdrop-filter:blur(12px);
    padding:16px 20px 24px;border-bottom:1px solid var(--line);box-shadow:var(--sh-2);
  }
  .nav-links.is-open{display:flex}
  .nav-links a{height:46px;justify-content:flex-start;padding:0 16px;border-radius:var(--r-sm);font-size:15.5px}
  .search-box{display:none}
  .link-login{display:none}
  .menu-toggle{display:flex}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:28px;padding-top:36px}
  .article-side{position:static}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  .nav-wrap{height:64px;gap:14px}
  .site-header.is-scrolled .nav-wrap{height:60px}
  .brand-name{font-size:16.5px}
  .article-hero{padding:26px 0 30px}
  .article-body{padding:26px 22px;border-radius:var(--r-md);font-size:16px}
  .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .rec-section{padding:34px 0 56px}
  .article-end{flex-direction:column;align-items:flex-start}
  .article-end .btn{width:100%}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .brand-name{font-size:15.5px}
  .nav-actions .btn-sm{padding:8px 14px;font-size:13px}
  .article-title{font-size:24px}
  .article-body{padding:20px 16px}
  .rec-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .article-body ul,.article-body ol{padding-left:1.15em}
}

/* roulang page: category1 */
:root{
  --brand-1:#0F9B8E;
  --brand-2:#17C0A9;
  --brand-3:#7BE0C6;
  --accent-1:#FF7A59;
  --accent-2:#FFC46B;
  --ink:#0E1F1C;
  --ink-2:#40534F;
  --ink-3:#788B87;
  --line:#E3EDE9;
  --surface:#FFFFFF;
  --bg:#F6FAF8;
  --bg-warm:#FFF7F2;
  --bg-mint:#EAF6F2;
  --grad-brand:linear-gradient(120deg,#0F9B8E 0%,#17C0A9 52%,#7BE0C6 100%);
  --grad-accent:linear-gradient(120deg,#FF7A59 0%,#FFC46B 100%);
  --container:1200px;
  --r-xs:10px;
  --r-sm:14px;
  --r-md:20px;
  --r-lg:28px;
  --r-pill:999px;
  --sh-1:0 2px 6px rgba(14,31,28,.04),0 10px 24px rgba(15,155,142,.06);
  --sh-2:0 8px 20px rgba(14,31,28,.06),0 24px 56px rgba(15,155,142,.12);
  --t:180ms cubic-bezier(.2,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand-1);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--brand-2);}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);}
h1{font-size:clamp(32px,4.4vw,52px);line-height:1.18;font-weight:800;}
h2{font-size:clamp(24px,2.6vw,34px);line-height:1.25;font-weight:700;}
h3{font-size:20px;line-height:1.4;font-weight:600;}
h4{font-size:17px;line-height:1.5;font-weight:600;}
p{font-size:15px;line-height:1.85;color:var(--ink-2);margin:0 0 14px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent-1);outline-offset:2px;border-radius:4px;}

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

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color var(--t),box-shadow var(--t),background var(--t);
}
.site-header.is-stuck{border-bottom-color:var(--line);box-shadow:var(--sh-1);}
.header-inner{display:flex;align-items:center;gap:24px;height:76px;transition:height var(--t);}
.site-header.is-stuck .header-inner{height:64px;}

.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:24px;height:24px;border-radius:8px;
  background:var(--grad-brand);
  display:grid;place-items:center;
  box-shadow:0 4px 12px rgba(15,155,142,.28);
  flex:0 0 auto;
}
.brand-mark svg{width:16px;height:16px;display:block;}
.brand-name{font-weight:700;font-size:18px;color:var(--ink);letter-spacing:.2px;white-space:nowrap;transition:color var(--t);}
.brand:hover .brand-name{color:var(--brand-1);}

.nav-links{display:flex;align-items:center;gap:4px;margin-left:4px;}
.nav-links a{
  display:inline-flex;align-items:center;
  min-height:44px;padding:8px 13px;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--ink-2);
  white-space:nowrap;
  transition:background var(--t),color var(--t);
}
.nav-links a:hover{background:var(--bg-mint);color:var(--brand-1);}
.nav-links a.is-active{background:var(--bg-mint);color:var(--brand-1);font-weight:600;}

.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
.search-field{position:relative;display:flex;align-items:center;}
.search-field svg{position:absolute;left:14px;width:16px;height:16px;stroke:var(--ink-3);pointer-events:none;}
.search-field input{
  width:220px;height:42px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:var(--surface);
  padding:0 16px 0 38px;
  font-size:14px;color:var(--ink);
  font-family:inherit;
  transition:border-color var(--t),box-shadow var(--t);
}
.search-field input::placeholder{color:var(--ink-3);}
.search-field input:focus{outline:none;border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(23,192,169,.18);}

.btn-login{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:8px 12px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--ink-2);
  transition:background var(--t),color var(--t);
}
.btn-login:hover{background:var(--bg-mint);color:var(--brand-1);}

.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:var(--surface);
  transition:border-color var(--t),box-shadow var(--t);
}
.nav-toggle:hover{border-color:var(--brand-3);box-shadow:var(--sh-1);}
.nav-toggle svg{width:20px;height:20px;stroke:var(--ink-2);}

.mobile-drawer{display:none;border-top:1px solid var(--line);background:var(--surface);padding:14px 0 22px;}
.mobile-drawer.is-open{display:block;animation:drawerIn 200ms ease;}
@keyframes drawerIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}
.mobile-drawer .nav-links{flex-direction:column;align-items:stretch;margin:0;gap:2px;}
.mobile-drawer .nav-links a{min-height:48px;padding:12px 14px;border-radius:var(--r-sm);font-size:15px;}
.drawer-search{margin:14px 0 12px;}
.drawer-search input{
  width:100%;height:46px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:var(--bg);
  padding:0 16px;font-size:14px;font-family:inherit;color:var(--ink);
}
.drawer-search input:focus{outline:none;border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(23,192,169,.18);}
.drawer-actions{display:flex;gap:10px;}
.drawer-actions .btn{flex:1;}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:12px 26px;
  border-radius:var(--r-pill);
  border:1.5px solid transparent;
  font-size:15px;font-weight:600;
  white-space:nowrap;
  transition:transform var(--t),box-shadow var(--t),filter var(--t),
             background-position var(--t),background-color var(--t),
             border-color var(--t),color var(--t);
}
.btn:hover{transform:translateY(-2px);}
.btn:active{transform:translateY(0);filter:brightness(.96);}
.btn-sm{min-height:44px;padding:9px 20px;font-size:14px;}
.btn-primary{
  background:var(--grad-accent);
  background-size:170% 100%;
  background-position:0 0;
  color:#fff;
  box-shadow:0 4px 14px rgba(255,122,89,.28);
}
.btn-primary:hover{color:#fff;box-shadow:var(--sh-2);background-position:100% 0;}
.btn-outline{background:var(--surface);border-color:var(--brand-1);color:var(--brand-1);}
.btn-outline:hover{background:var(--bg-mint);color:var(--brand-1);box-shadow:var(--sh-2);}
.btn-ghost{background:var(--bg-mint);color:var(--brand-1);}
.btn-ghost:hover{color:var(--brand-1);box-shadow:var(--sh-1);}
.btn-light{background:#fff;color:var(--brand-1);box-shadow:0 10px 26px rgba(10,60,55,.18);}
.btn-light:hover{color:var(--brand-1);box-shadow:0 18px 40px rgba(10,60,55,.24);}

/* ===== Breadcrumb ===== */
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;padding:22px 0 14px;font-size:13px;color:var(--ink-3);}
.breadcrumb a{color:var(--ink-3);}
.breadcrumb a:hover{color:var(--brand-1);}
.breadcrumb .sep{color:var(--ink-3);opacity:.55;}
.breadcrumb .current{color:var(--ink-2);font-weight:600;}

/* ===== Page hero ===== */
.page-hero{
  position:relative;
  display:flex;align-items:flex-end;
  min-height:340px;
  border-radius:var(--r-lg);
  overflow:hidden;
  background:var(--ink);
  box-shadow:var(--sh-2);
  isolation:isolate;
}
.page-hero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;}
.page-hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(120deg,rgba(14,31,28,.88) 0%,rgba(15,155,142,.62) 58%,rgba(14,31,28,.42) 100%);
}
.page-hero-inner{padding:44px 44px 40px;max-width:780px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;letter-spacing:.4px;
  color:#fff;background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.34);
  border-radius:var(--r-pill);
  padding:4px 12px;margin-bottom:16px;
  backdrop-filter:blur(4px);
}
.page-hero h1{color:#fff;font-size:clamp(28px,3.5vw,44px);line-height:1.2;margin-bottom:14px;}
.page-hero .hero-sub{color:rgba(255,255,255,.88);font-size:15px;line-height:1.8;max-width:560px;margin:0;}
.hero-actions{display:flex;gap:12px;margin-top:26px;flex-wrap:wrap;}

/* ===== Sections ===== */
.section{padding:88px 0;}
.section-tight{padding:56px 0;}
.section-head{max-width:680px;margin-bottom:40px;}
.section-head h2{margin-bottom:12px;}
.section-head p{font-size:15px;color:var(--ink-2);line-height:1.8;}
.eyebrow{
  display:inline-flex;align-items:center;
  font-size:13px;font-weight:600;color:var(--brand-1);
  background:var(--bg-mint);
  border-radius:var(--r-pill);
  padding:4px 12px;margin-bottom:14px;
}

/* ===== Cards ===== */
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  padding:24px;
  transition:border-color var(--t),box-shadow var(--t),transform var(--t);
}
.card:hover{border-color:var(--brand-3);box-shadow:var(--sh-2);transform:translateY(-2px);}
.card-plain{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);}
.card-media{overflow:hidden;border-radius:var(--r-md);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms cubic-bezier(.2,.7,.3,1);}
.card-media:hover img{transform:scale(1.03);}

/* ===== Split layout ===== */
.split{display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:start;}
.split-main h2{margin-bottom:16px;}
.split-main p{font-size:15.5px;line-height:1.9;color:var(--ink-2);}

.check-list{display:grid;gap:12px;margin-top:24px;}
.check-list li{display:flex;gap:10px;font-size:15px;line-height:1.75;color:var(--ink-2);}
.check-list li::before{
  content:"✓";
  flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  width:20px;height:20px;margin-top:4px;
  border-radius:50%;
  background:var(--bg-mint);
  color:var(--brand-1);
  font-size:12px;font-weight:700;line-height:1;
}

.side-card{padding:0;overflow:hidden;}
.side-card .side-body{padding:24px;}
.side-card h3{font-size:18px;margin-bottom:6px;}
.side-card .side-hint{font-size:13px;color:var(--ink-3);line-height:1.7;margin-bottom:16px;}
.side-list{display:grid;gap:14px;}
.side-list li{display:flex;gap:10px;font-size:14px;line-height:1.75;color:var(--ink-2);}
.side-list li span.dot{
  flex:0 0 auto;width:8px;height:8px;margin-top:8px;border-radius:50%;
  background:var(--grad-brand);
}

/* ===== Steps ===== */
.step-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.step{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  padding:28px 24px 26px;
  transition:border-color var(--t),box-shadow var(--t),transform var(--t);
}
.step:hover{border-color:var(--brand-3);box-shadow:var(--sh-2);transform:translateY(-2px);}
.step:not(:last-child)::after{
  content:"";position:absolute;top:50px;right:-13px;
  width:26px;height:0;border-top:1px dashed var(--brand-3);
}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:50%;
  background:var(--grad-brand);
  color:#fff;font-size:18px;font-weight:700;
  font-variant-numeric:tabular-nums;
  box-shadow:0 8px 18px rgba(15,155,142,.26);
  margin-bottom:18px;
}
.step h3{font-size:19px;margin-bottom:8px;}
.step p{font-size:14px;line-height:1.8;color:var(--ink-2);margin:0;}

/* ===== Environment panel ===== */
.env-panel{
  background:var(--bg-mint);
  border-radius:var(--r-lg);
  padding:48px 40px;
}
.env-panel .section-head{margin-bottom:32px;}
.env-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.env-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  padding:24px;
  transition:border-color var(--t),box-shadow var(--t),transform var(--t);
}
.env-card:hover{border-color:var(--brand-3);box-shadow:var(--sh-2);transform:translateY(-2px);}
.env-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;
  background:var(--bg-mint);margin-bottom:16px;
}
.env-icon svg{width:22px;height:22px;stroke:var(--brand-1);}
.env-card h3{font-size:17px;margin-bottom:8px;}
.env-card p{font-size:14px;line-height:1.8;color:var(--ink-2);margin:0;}

/* ===== Notice ===== */
.notice{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--bg-warm);
  border-left:4px solid var(--accent-1);
  border-radius:var(--r-sm);
  padding:22px 24px;
  margin-top:28px;
}
.notice .notice-body h3{font-size:16px;margin-bottom:6px;}
.notice .notice-body p{font-size:14px;line-height:1.8;color:var(--ink-2);margin:0;}
.notice .notice-mark{
  flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:50%;
  background:rgba(255,122,89,.14);
}
.notice .notice-mark svg{width:18px;height:18px;stroke:var(--accent-1);}

/* ===== FAQ ===== */
.faq-grid{display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:start;}
.faq-aside h2{margin-bottom:14px;}
.faq-aside p{font-size:15px;line-height:1.85;color:var(--ink-2);}
.faq-contact{
  margin-top:22px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  padding:22px;
}
.faq-contact h3{font-size:16px;margin-bottom:8px;}
.faq-contact p{font-size:13.5px;line-height:1.8;color:var(--ink-2);margin-bottom:16px;}
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  padding:0 18px;
  transition:background var(--t),border-color var(--t),box-shadow var(--t);
}
.faq-item:hover{border-color:var(--brand-3);}
.faq-item[open]{background:var(--bg-warm);border-color:var(--brand-3);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  min-height:58px;padding:14px 0;
  font-size:16px;font-weight:600;color:var(--ink);
  cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex:0 0 auto;
  font-size:20px;font-weight:400;line-height:1;color:var(--brand-1);
  transition:transform var(--t);
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-body{padding:2px 0 18px;font-size:15px;line-height:1.85;color:var(--ink-2);}

/* ===== CTA ===== */
.cta-panel{
  position:relative;
  display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center;
  border-radius:var(--r-lg);
  background:var(--grad-brand);
  box-shadow:var(--sh-2);
  padding:52px 48px;
  overflow:hidden;
  isolation:isolate;
}
.cta-panel::before{
  content:"";position:absolute;z-index:-1;
  width:420px;height:420px;right:-120px;top:-180px;border-radius:50%;
  background:rgba(255,255,255,.14);
}
.cta-panel::after{
  content:"";position:absolute;z-index:-1;
  width:300px;height:300px;right:80px;bottom:-200px;border-radius:50%;
  background:rgba(255,255,255,.1);
}
.cta-panel h2{color:#fff;font-size:clamp(24px,2.6vw,32px);margin-bottom:12px;}
.cta-panel p{color:rgba(255,255,255,.9);font-size:15px;line-height:1.85;max-width:560px;margin:0;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ===== Footer ===== */
.site-footer{
  background:var(--ink);
  color:rgba(255,255,255,.72);
  margin-top:88px;
  padding:64px 0 0;
  border-top:1px solid rgba(123,224,198,.18);
}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:48px;}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand:hover .brand-name{color:var(--brand-3);}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);margin-top:16px;max-width:300px;}
.footer-brand .contact{font-size:13px;line-height:1.95;color:rgba(255,255,255,.52);margin-top:16px;}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col li a{font-size:14px;color:rgba(255,255,255,.7);}
.footer-col li a:hover{color:var(--brand-3);}
.footer-col p{font-size:13px;line-height:1.95;color:rgba(255,255,255,.58);}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(123,224,198,.16);
  padding:20px 0 28px;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom .domain{color:rgba(255,255,255,.42);}

/* ===== Responsive ===== */
@media (max-width:1120px){
  .search-field{display:none;}
}
@media (max-width:1024px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .section{padding:64px 0;}
  .section-tight{padding:44px 0;}
  .split{grid-template-columns:1fr;gap:28px;}
  .faq-grid{grid-template-columns:1fr;gap:28px;}
  .env-grid{grid-template-columns:1fr 1fr;}
  .env-panel{padding:36px 28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-panel{grid-template-columns:1fr;padding:40px 32px;}
}
@media (max-width:768px){
  .header-inner{height:66px;gap:12px;}
  .step-row{grid-template-columns:1fr;}
  .step:not(:last-child)::after{display:none;}
  .page-hero{min-height:300px;}
  .page-hero-inner{padding:30px 24px 28px;}
  .env-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px;}
  .site-footer{margin-top:64px;padding-top:48px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .section-tight{padding:36px 0;}
  .brand-name{font-size:16px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .card{padding:18px;}
  .env-panel{padding:26px 20px;}
  .notice{padding:18px;gap:12px;}
  .faq-item{padding:0 14px;}
  .page-hero h1{font-size:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}

/* roulang page: category2 */
:root{
  --brand-1:#0F9B8E;--brand-2:#17C0A9;--brand-3:#7BE0C6;
  --accent-1:#FF7A59;--accent-2:#FFC46B;
  --ink:#0E1F1C;--ink-2:#40534F;--ink-3:#788B87;
  --line:#E3EDE9;--surface:#FFFFFF;--bg:#F6FAF8;--bg-warm:#FFF7F2;--bg-mint:#EAF6F2;
  --grad-brand:linear-gradient(120deg,#0F9B8E 0%,#17C0A9 52%,#7BE0C6 100%);
  --grad-accent:linear-gradient(120deg,#FF7A59 0%,#FFC46B 100%);
  --container:1200px;
  --r-xs:10px;--r-sm:14px;--r-md:20px;--r-lg:28px;--r-pill:999px;
  --sh-1:0 2px 6px rgba(14,31,28,.04),0 10px 24px rgba(15,155,142,.06);
  --sh-2:0 8px 20px rgba(14,31,28,.06),0 24px 56px rgba(15,155,142,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;line-height:1.85;color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
a{color:var(--brand-1);text-decoration:none;transition:color 180ms var(--ease),background-color 180ms var(--ease),border-color 180ms var(--ease),transform 180ms var(--ease),box-shadow 180ms var(--ease)}
a:hover{color:var(--brand-2)}
img{display:block;max-width:100%}
button{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--accent-1);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;gap:20px;height:76px;transition:height 180ms var(--ease)}
.site-header.is-scrolled .header-inner{height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--grad-brand);
  display:grid;place-items:center;box-shadow:var(--sh-1);flex-shrink:0;
}
.brand-mark svg{width:20px;height:20px;display:block}
.brand-name{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:.2px;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:2px;flex:1;min-width:0}
.nav-links a{
  display:inline-flex;align-items:center;height:36px;padding:0 13px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--ink-2);white-space:nowrap;
}
.nav-links a:hover{background:var(--bg-mint);color:var(--brand-1)}
.nav-links a.is-active{background:var(--bg-mint);color:var(--brand-1);font-weight:600}
.header-tools{display:flex;align-items:center;gap:10px;flex-shrink:0}
.search-box{
  display:flex;align-items:center;gap:8px;height:40px;width:224px;padding:0 14px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-pill);
  transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.search-box:focus-within{border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(23,192,169,.16)}
.search-box svg{width:16px;height:16px;stroke:var(--ink-3);flex-shrink:0}
.search-box input{
  border:0;background:transparent;outline:none;width:100%;font-size:14px;color:var(--ink);
  font-family:inherit;
}
.search-box input::placeholder{color:var(--ink-3)}
.login-link{
  font-size:15px;font-weight:500;color:var(--ink-2);padding:0 8px;background:none;border:0;
  cursor:pointer;height:40px;line-height:40px;border-radius:var(--r-pill);
  transition:color 180ms var(--ease),background-color 180ms var(--ease);
}
.login-link:hover{color:var(--brand-1);background:var(--bg-mint)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-xs);
  background:var(--surface);cursor:pointer;align-items:center;justify-content:center;
  transition:border-color 180ms var(--ease),background-color 180ms var(--ease);
}
.nav-toggle:hover{border-color:var(--brand-3);background:var(--bg-mint)}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
  transition:transform 180ms var(--ease);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.site-header.nav-open .nav-toggle span{background:transparent}
.site-header.nav-open .nav-toggle span::before{transform:translateY(6px) rotate(45deg)}
.site-header.nav-open .nav-toggle span::after{transform:translateY(-6px) rotate(-45deg)}
.nav-drawer{display:none;border-top:1px solid var(--line);background:var(--surface);padding:12px 0 20px}
.site-header.nav-open .nav-drawer{display:block}
.nav-drawer .container{display:flex;flex-direction:column;gap:4px}
.nav-drawer a{
  padding:12px 14px;border-radius:var(--r-sm);font-size:15px;color:var(--ink-2);min-height:44px;
  display:flex;align-items:center;
}
.nav-drawer a:hover{background:var(--bg-mint);color:var(--brand-1)}
.nav-drawer a.is-active{background:var(--bg-mint);color:var(--brand-1);font-weight:600}
.drawer-foot{margin-top:14px;padding-top:14px;border-top:1px solid var(--line);display:flex;gap:10px}
.drawer-foot .btn{flex:1}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;
  transition:transform 180ms var(--ease),box-shadow 180ms var(--ease),
             background-position 180ms var(--ease),filter 180ms var(--ease),
             background-color 180ms var(--ease),color 180ms var(--ease),border-color 180ms var(--ease);
}
.btn-primary{background:var(--grad-accent);background-size:160% 100%;color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--sh-2);background-position:100% 0;color:#fff}
.btn-primary:active{transform:translateY(0);filter:brightness(.96)}
.btn-outline{background:var(--surface);border-color:var(--brand-1);color:var(--brand-1)}
.btn-outline:hover{background:var(--bg-mint);transform:translateY(-2px);box-shadow:var(--sh-1);color:var(--brand-1)}
.btn-outline:active{transform:translateY(0);filter:brightness(.97)}
.btn-ghost{background:var(--bg-mint);color:var(--brand-1);border-color:transparent}
.btn-ghost:hover{transform:translateY(-2px);box-shadow:var(--sh-1);background:#E1F3ED;color:var(--brand-1)}
.btn-ghost:active{transform:translateY(0);filter:brightness(.97)}
.btn-sm{min-height:40px;padding:0 20px;font-size:14px}
.btn-light{background:#fff;color:var(--brand-1);box-shadow:var(--sh-1)}
.btn-light:hover{transform:translateY(-2px);box-shadow:var(--sh-2);color:var(--brand-1)}
.btn-light:active{transform:translateY(0);filter:brightness(.96)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.62);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.16);color:#fff;transform:translateY(-2px)}
.btn-outline-light:active{transform:translateY(0)}

/* ---------- Breadcrumb ---------- */
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-3);padding-top:22px;
}
.breadcrumb a{color:var(--ink-3)}
.breadcrumb a:hover{color:var(--brand-1)}
.breadcrumb .sep{color:var(--ink-3);opacity:.65}
.breadcrumb .current{color:var(--ink-2);font-weight:600}

/* ---------- Hero ---------- */
.page-hero{
  padding:0 0 72px;
  background:
    radial-gradient(760px 340px at 88% 0%,rgba(123,224,198,.26),transparent 70%),
    radial-gradient(520px 280px at 4% 12%,rgba(255,196,107,.16),transparent 72%),
    linear-gradient(180deg,#F2FBF8 0%,var(--bg) 100%);
}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:52px;align-items:center;padding-top:28px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 15px;border-radius:var(--r-pill);
  background:rgba(255,122,89,.1);color:var(--accent-1);font-size:13px;font-weight:600;letter-spacing:.4px;
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--accent-1)}
.hero-copy h1{
  font-size:clamp(32px,4.4vw,52px);line-height:1.18;font-weight:800;letter-spacing:-.6px;
  margin:16px 0 18px;color:var(--ink);
}
.hero-sub{font-size:17px;line-height:1.8;color:var(--ink-2);max-width:560px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
.hero-note{margin-top:18px;font-size:13px;color:var(--ink-3)}
.hero-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;aspect-ratio:4/3;
  box-shadow:var(--sh-2);background:var(--bg-mint);
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(145deg,rgba(15,155,142,.34),rgba(255,122,89,.12) 68%,rgba(255,255,255,0) 100%);
}
.hero-chip{
  position:absolute;left:18px;bottom:18px;z-index:2;
  display:inline-flex;align-items:center;gap:10px;
  background:rgba(255,255,255,.94);border-radius:var(--r-pill);
  padding:8px 16px;box-shadow:var(--sh-1);font-size:13px;color:var(--ink-2);
}
.hero-chip b{font-size:16px;color:var(--brand-1);font-variant-numeric:tabular-nums}

/* ---------- Sections ---------- */
.section{padding:88px 0}
.section-tight{padding:56px 0}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:740px}
.section-head h2{
  font-size:clamp(24px,2.6vw,34px);line-height:1.25;font-weight:700;letter-spacing:-.3px;
  margin:12px 0 14px;color:var(--ink);
}
.section-head p{font-size:16px;color:var(--ink-2)}
.kicker{
  display:inline-flex;align-items:center;gap:9px;font-size:13px;font-weight:700;
  color:var(--brand-1);letter-spacing:1.4px;
}
.kicker::before{content:"";width:20px;height:3px;border-radius:2px;background:var(--grad-accent)}

/* ---------- Feature rows ---------- */
.feature-rows{display:flex;flex-direction:column;gap:68px;margin-top:52px}
.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.feature-row.reverse .feature-media{order:2}
.feature-row.reverse .feature-body{order:1}
.feature-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;aspect-ratio:4/3;
  box-shadow:var(--sh-1);background:var(--bg-mint);border:1px solid var(--line);
}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--ease)}
.feature-row:hover .feature-media img{transform:scale(1.03)}
.feature-media .num{
  position:absolute;top:16px;left:16px;z-index:2;
  width:40px;height:40px;border-radius:50%;background:var(--grad-brand);color:#fff;
  display:grid;place-items:center;font-size:15px;font-weight:700;font-variant-numeric:tabular-nums;
  box-shadow:var(--sh-1);
}
.feature-body h3{font-size:24px;line-height:1.4;font-weight:700;margin:16px 0 14px;color:var(--ink)}
.feature-body p{font-size:15.5px;line-height:1.85;color:var(--ink-2);margin-bottom:12px}
.tag{
  display:inline-flex;align-items:center;padding:5px 13px;border-radius:var(--r-pill);
  background:var(--bg-mint);color:var(--brand-1);font-size:12.5px;font-weight:600;letter-spacing:.3px;
}
.tag-accent{background:rgba(255,122,89,.1);color:var(--accent-1)}
.text-link{
  display:inline-flex;align-items:center;gap:7px;font-size:15px;font-weight:600;
  color:var(--brand-1);margin-top:6px;
}
.text-link svg{width:16px;height:16px;transition:transform 180ms var(--ease)}
.text-link:hover{color:var(--brand-2)}
.text-link:hover svg{transform:translateX(4px)}
.mini-list{margin-top:16px;display:flex;flex-direction:column;gap:9px}
.mini-list li{
  position:relative;padding-left:20px;font-size:14.5px;line-height:1.75;color:var(--ink-2);
}
.mini-list li::before{
  content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:50%;
  background:var(--grad-brand);
}

/* ---------- Stats ---------- */
.stat-band{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;
  background:var(--bg-mint);border:1px solid var(--line);border-radius:var(--r-lg);padding:32px;
}
.stat{
  background:var(--surface);border-radius:16px;padding:24px 22px;border:1px solid var(--line);
  box-shadow:var(--sh-1);transition:transform 180ms var(--ease),box-shadow 180ms var(--ease),border-color 180ms var(--ease);
}
.stat:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--brand-3)}
.stat-num{
  display:block;font-size:clamp(34px,3.6vw,46px);line-height:1.1;font-weight:800;
  color:var(--brand-1);font-variant-numeric:tabular-nums;letter-spacing:-1px;
}
.stat:nth-child(2n) .stat-num{color:var(--accent-1)}
.stat-label{display:block;margin-top:10px;font-size:13.5px;line-height:1.6;color:var(--ink-2)}
.band-note{margin-top:18px;font-size:13.5px;color:var(--ink-3)}

/* ---------- Checklist strip ---------- */
.check-strip{
  display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:40px;box-shadow:var(--sh-1);
}
.check-strip h2{font-size:clamp(22px,2.2vw,28px);line-height:1.35;font-weight:700;margin-bottom:14px}
.check-strip p{font-size:15.5px;color:var(--ink-2)}
.check-list{display:flex;flex-direction:column;gap:14px}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;background:var(--bg-mint);
  border-radius:var(--r-sm);padding:14px 16px;font-size:14.5px;line-height:1.7;color:var(--ink-2);
}
.check-list .tick{
  width:22px;height:22px;border-radius:50%;background:var(--grad-brand);flex-shrink:0;
  display:grid;place-items:center;margin-top:2px;
}
.check-list .tick svg{width:12px;height:12px;stroke:#fff;stroke-width:3}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:44px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:border-color 180ms var(--ease),background-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.faq-item:hover{border-color:var(--brand-3)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;
  gap:16px;padding:20px;font-size:16px;font-weight:600;line-height:1.55;color:var(--ink);min-height:44px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .plus{
  width:22px;height:22px;flex-shrink:0;position:relative;margin-top:3px;
  transition:transform 220ms var(--ease);
}
.faq-item summary .plus::before,.faq-item summary .plus::after{
  content:"";position:absolute;background:var(--brand-1);border-radius:2px;
}
.faq-item summary .plus::before{left:0;top:10px;width:22px;height:2px}
.faq-item summary .plus::after{left:10px;top:0;width:2px;height:22px}
.faq-item[open] summary .plus{transform:rotate(45deg)}
.faq-item[open]{background:var(--bg-warm);border-color:var(--brand-3)}
.faq-body{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--ink-2)}

/* ---------- CTA ---------- */
.cta-wrap{padding:0 0 88px}
.cta-board{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:var(--grad-brand);color:#fff;box-shadow:var(--sh-2);
  padding:56px;display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:center;
}
.cta-board::before{
  content:"";position:absolute;right:-80px;top:-90px;width:320px;height:320px;border-radius:50%;
  background:rgba(255,255,255,.12);
}
.cta-board h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;font-weight:700;margin-bottom:12px;color:#fff}
.cta-board p{font-size:15.5px;line-height:1.8;color:rgba(255,255,255,.9);max-width:520px}
.cta-actions{display:flex;justify-content:flex-end;gap:14px;flex-wrap:wrap;position:relative;z-index:2}
.cta-tip{margin-top:16px;font-size:13px;color:rgba(255,255,255,.78)}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#C8D8D4;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr 1.2fr;gap:40px;padding-bottom:44px}
.footer-brand .brand-name{color:#fff}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);margin:16px 0 14px;max-width:340px}
.footer-brand .contact{font-size:13px;line-height:1.9;color:rgba(255,255,255,.55)}
.footer-col h4{font-size:15px;color:#fff;font-weight:600;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.66);display:inline-block;padding:2px 0}
.footer-col a:hover{color:var(--brand-3)}
.footer-col p{font-size:13px;line-height:1.85;color:rgba(255,255,255,.55)}
.footer-bottom{
  border-top:1px solid rgba(123,224,198,.2);padding:20px 0;
  display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .header-inner{gap:14px}
  .search-box{width:190px}
  .nav-links a{padding:0 10px;font-size:14.5px}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .search-box{display:none}
  .login-link{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{justify-content:space-between}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media{aspect-ratio:16/9}
  .feature-row{grid-template-columns:1fr;gap:28px}
  .feature-row.reverse .feature-media{order:0}
  .feature-row.reverse .feature-body{order:0}
  .feature-media{aspect-ratio:16/9}
  .feature-rows{gap:52px;margin-top:40px}
  .stat-band{grid-template-columns:repeat(2,minmax(0,1fr))}
  .check-strip{grid-template-columns:1fr;gap:26px;padding:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-board{grid-template-columns:1fr;padding:44px}
  .cta-actions{justify-content:flex-start}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .section{padding:64px 0}
  .section-tight{padding:44px 0}
  .page-hero{padding-bottom:56px}
  .breadcrumb{padding-top:18px}
  .hero-copy h1{margin:14px 0 14px}
  .hero-sub{font-size:16px}
  .faq-grid{grid-template-columns:1fr;margin-top:32px}
  .cta-wrap{padding-bottom:64px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:479px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  .section-tight{padding:36px 0}
  .brand-name{font-size:16px}
  .btn{width:100%;padding:0 18px}
  .hero-actions .btn,.cta-actions .btn,.drawer-foot .btn{width:100%}
  .header-tools .btn{width:auto;padding:0 16px}
  .stat-band{padding:20px;gap:14px}
  .stat{padding:18px 16px}
  .faq-item summary{padding:16px}
  .faq-body{padding:0 16px 16px}
  .cta-board{padding:28px 22px}
  .footer-grid{grid-template-columns:1fr}
  .check-strip{padding:24px}
}

/* roulang page: category3 */
:root{
    --brand-1:#0F9B8E; --brand-2:#17C0A9; --brand-3:#7BE0C6;
    --accent-1:#FF7A59; --accent-2:#FFC46B;
    --ink:#0E1F1C; --ink-2:#40534F; --ink-3:#788B87;
    --line:#E3EDE9; --surface:#FFFFFF; --bg:#F6FAF8; --bg-warm:#FFF7F2; --bg-mint:#EAF6F2;
    --grad-brand:linear-gradient(120deg,#0F9B8E 0%,#17C0A9 52%,#7BE0C6 100%);
    --grad-accent:linear-gradient(120deg,#FF7A59 0%,#FFC46B 100%);
    --container:1200px;
    --r-xs:10px; --r-sm:14px; --r-md:20px; --r-lg:28px; --r-pill:999px;
    --sh-1:0 2px 6px rgba(14,31,28,.04),0 10px 24px rgba(15,155,142,.06);
    --sh-2:0 8px 20px rgba(14,31,28,.06),0 24px 56px rgba(15,155,142,.12);
    --t:180ms cubic-bezier(.2,.7,.3,1);
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;background:var(--bg);color:var(--ink);
    font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
    font-size:16px;line-height:1.85;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block}
  a{color:var(--brand-1);text-decoration:none;transition:color var(--t),opacity var(--t)}
  a:hover{color:var(--brand-2)}
  button{font-family:inherit}
  ul,ol{margin:0;padding:0;list-style:none}
  h1,h2,h3,h4,p{margin:0}
  h1{font-size:clamp(32px,4.4vw,52px);line-height:1.18;font-weight:800;letter-spacing:-.5px}
  h2{font-size:clamp(24px,2.6vw,34px);line-height:1.25;font-weight:700}
  h3{font-size:20px;line-height:1.4;font-weight:600}
  h4{font-size:17px;line-height:1.5;font-weight:600}
  .num{font-variant-numeric:tabular-nums}
  :focus-visible{outline:2px solid var(--accent-1);outline-offset:2px;border-radius:6px}

  .container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
  .section{padding:88px 0}
  .section-tight{padding:56px 0}
  .section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

  /* ---------- 头部导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);
    backdrop-filter:blur(10px);border-bottom:1px solid transparent;
    transition:border-color var(--t),box-shadow var(--t),background var(--t);
  }
  .site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--sh-1)}
  .header-inner{
    display:flex;align-items:center;gap:20px;
    height:76px;transition:height var(--t);
  }
  .site-header.is-scrolled .header-inner{height:64px}
  .brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;color:var(--ink)}
  .brand:hover{color:var(--ink)}
  .brand-mark{
    width:24px;height:24px;border-radius:8px;background:var(--grad-brand);
    display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;
    box-shadow:0 4px 12px rgba(15,155,142,.28);
  }
  .brand-mark svg{width:16px;height:16px}
  .brand-name{font-size:18px;font-weight:700;letter-spacing:.2px;white-space:nowrap}
  .nav-links{display:flex;align-items:center;gap:4px;margin-left:8px}
  .nav-links a{
    display:inline-flex;align-items:center;min-height:36px;padding:6px 14px;
    border-radius:var(--r-pill);font-size:15px;color:var(--ink-2);font-weight:500;
    transition:background var(--t),color var(--t);
  }
  .nav-links a:hover{background:var(--bg-mint);color:var(--brand-1)}
  .nav-links a.is-active{background:var(--bg-mint);color:var(--brand-1);font-weight:600}
  .header-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
  .nav-search{position:relative;display:flex;align-items:center}
  .nav-search svg{
    position:absolute;left:14px;width:16px;height:16px;color:var(--ink-3);pointer-events:none
  }
  .nav-search input{
    width:216px;height:40px;padding:0 16px 0 38px;border:1px solid var(--line);
    border-radius:var(--r-pill);background:var(--surface);color:var(--ink);
    font-size:14px;font-family:inherit;transition:border-color var(--t),box-shadow var(--t);
  }
  .nav-search input::placeholder{color:var(--ink-3)}
  .nav-search input:focus{
    outline:none;border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(23,192,169,.16)
  }
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:44px;padding:11px 26px;border-radius:var(--r-pill);
    font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;
    transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t),border-color var(--t);
    white-space:nowrap;
  }
  .btn-primary{background:var(--grad-accent);color:#fff;box-shadow:var(--sh-1)}
  .btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);filter:brightness(1.04)}
  .btn-primary:active{transform:translateY(0);filter:brightness(.96)}
  .btn-secondary{background:var(--surface);border-color:var(--brand-1);color:var(--brand-1)}
  .btn-secondary:hover{background:var(--bg-mint);color:var(--brand-1);transform:translateY(-2px);box-shadow:var(--sh-1)}
  .btn-secondary:active{transform:translateY(0);filter:brightness(.97)}
  .btn-ghost{background:var(--bg-mint);color:var(--brand-1)}
  .btn-ghost:hover{background:#dff2ec;color:var(--brand-1);transform:translateY(-2px)}
  .btn-ghost:active{transform:translateY(0)}
  .btn-text{
    display:inline-flex;align-items:center;min-height:44px;padding:0 8px;
    font-size:15px;font-weight:500;color:var(--ink-2);
  }
  .btn-text:hover{color:var(--brand-1)}
  .nav-toggle{
    display:none;width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);
    background:var(--surface);align-items:center;justify-content:center;cursor:pointer;
  }
  .nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-2);border-radius:2px;position:relative}
  .nav-toggle span::before,.nav-toggle span::after{
    content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-2);border-radius:2px;
    transition:transform var(--t),top var(--t)
  }
  .nav-toggle span::before{top:-6px}
  .nav-toggle span::after{top:6px}
  .nav-toggle.is-open span{background:transparent}
  .nav-toggle.is-open span::before{top:0;transform:rotate(45deg)}
  .nav-toggle.is-open span::after{top:0;transform:rotate(-45deg)}
  .mobile-drawer{
    display:none;border-top:1px solid var(--line);background:var(--surface);
    padding:12px 0 20px;box-shadow:var(--sh-1);
  }
  .mobile-drawer.is-open{display:block}
  .mobile-drawer .drawer-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:14px}
  .mobile-drawer .drawer-nav a{
    display:flex;align-items:center;min-height:46px;padding:0 14px;border-radius:var(--r-sm);
    font-size:15px;color:var(--ink-2);font-weight:500
  }
  .mobile-drawer .drawer-nav a:hover{background:var(--bg-mint);color:var(--brand-1)}
  .mobile-drawer .drawer-nav a.is-active{background:var(--bg-mint);color:var(--brand-1);font-weight:600}
  .drawer-search{display:flex;gap:10px;padding:0 14px}
  .drawer-search input{
    flex:1;height:44px;padding:0 16px;border:1px solid var(--line);border-radius:var(--r-pill);
    background:var(--bg);font-size:14px;font-family:inherit;color:var(--ink)
  }
  .drawer-search input:focus{outline:none;border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(23,192,169,.16)}

  /* ---------- 面包屑 ---------- */
  .breadcrumb{
    display:flex;flex-wrap:wrap;align-items:center;gap:8px;
    font-size:13px;color:var(--ink-3);padding-top:28px;margin-bottom:12px;
  }
  .breadcrumb a{color:var(--ink-3)}
  .breadcrumb a:hover{color:var(--brand-1)}
  .breadcrumb .sep{color:#c3d4cf}
  .breadcrumb .current{color:var(--ink-2);font-weight:600}

  /* ---------- Hero ---------- */
  .page-hero{position:relative;overflow:hidden;padding-bottom:8px}
  .page-hero::before{
    content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
    background:
      radial-gradient(680px 320px at 88% -12%,rgba(123,224,198,.28),transparent 68%),
      radial-gradient(520px 300px at 4% 8%,rgba(255,196,107,.18),transparent 66%);
  }
  .hero-grid{
    position:relative;z-index:1;display:grid;grid-template-columns:1.18fr .82fr;
    gap:48px;align-items:center;padding:36px 0 8px;
  }
  .hero-eyebrow{
    display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);
    background:var(--surface);border:1px solid var(--line);box-shadow:var(--sh-1);
    font-size:13px;font-weight:600;color:var(--brand-1);margin-bottom:20px;
  }
  .hero-eyebrow .dot{
    width:8px;height:8px;border-radius:50%;background:var(--accent-1);
    box-shadow:0 0 0 3px rgba(255,122,89,.16)
  }
  .page-hero h1{margin-bottom:18px}
  .page-hero h1 .hl{
    background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;
  }
  .hero-sub{font-size:17px;line-height:1.75;color:var(--ink-2);max-width:560px;margin-bottom:26px}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:18px}
  .hero-meta{font-size:13px;color:var(--ink-3);display:flex;flex-wrap:wrap;align-items:center;gap:10px}
  .hero-meta .pill{
    padding:2px 10px;border-radius:var(--r-pill);background:var(--bg-mint);color:var(--brand-1);font-weight:600
  }
  .hero-figure{position:relative}
  .hero-figure img{
    width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--sh-2)
  }
  .hero-badge{
    position:absolute;left:-18px;bottom:24px;background:var(--surface);border:1px solid var(--line);
    border-radius:var(--r-md);padding:14px 18px;box-shadow:var(--sh-2);min-width:150px;
  }
  .hero-badge strong{
    display:block;font-size:34px;line-height:1.1;font-weight:800;color:var(--brand-1);font-variant-numeric:tabular-nums
  }
  .hero-badge span{font-size:13px;color:var(--ink-2)}

  /* ---------- 指南主体 ---------- */
  .guide-layout{display:grid;grid-template-columns:288px minmax(0,1fr);gap:56px;align-items:start}
  .guide-toc{position:sticky;top:96px}
  .toc-card{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
    padding:22px 20px;box-shadow:var(--sh-1);
  }
  .toc-title{font-size:13px;font-weight:700;letter-spacing:1px;color:var(--ink-3);margin-bottom:14px}
  .toc-list{display:flex;flex-direction:column;gap:2px;border-left:1px solid var(--line);padding-left:0}
  .toc-list a{
    display:block;padding:8px 0 8px 16px;font-size:14px;line-height:1.5;color:var(--ink-2);
    border-left:2px solid transparent;margin-left:-1px;transition:color var(--t),border-color var(--t),background var(--t);
  }
  .toc-list a:hover{color:var(--brand-1);border-left-color:var(--brand-3);background:rgba(234,246,242,.7)}
  .toc-list a.is-current{color:var(--brand-1);font-weight:600;border-left-color:var(--brand-1)}
  .toc-note{
    margin-top:18px;padding:12px 14px;border-radius:var(--r-sm);background:var(--bg-warm);
    font-size:12.5px;line-height:1.7;color:var(--ink-2);border-left:3px solid var(--accent-1)
  }
  .toc-cta{width:100%;margin-top:16px}

  .guide-intro{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
    padding:24px;box-shadow:var(--sh-1);margin-bottom:40px;
  }
  .guide-intro h2{font-size:22px;margin-bottom:10px}
  .guide-intro p{font-size:15.5px;color:var(--ink-2);line-height:1.85}
  .guide-intro p + p{margin-top:10px}

  .step-block{border-bottom:1px dashed var(--line);padding-bottom:34px;margin-bottom:34px;scroll-margin-top:100px}
  .step-block:last-child{border-bottom:none;padding-bottom:0;margin-bottom:0}
  .step-head{display:flex;align-items:flex-start;gap:14px;margin-bottom:14px}
  .step-num{
    flex-shrink:0;width:44px;height:44px;border-radius:50%;background:var(--grad-brand);color:#fff;
    display:inline-flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;
    font-variant-numeric:tabular-nums;box-shadow:0 6px 16px rgba(15,155,142,.28)
  }
  .step-head h2{font-size:clamp(20px,2vw,26px);line-height:1.35;padding-top:6px}
  .step-block p{font-size:16px;color:var(--ink-2);line-height:1.9}
  .step-block p + p{margin-top:12px}
  .check-list{display:flex;flex-direction:column;gap:10px;margin:16px 0}
  .check-list li{
    position:relative;padding-left:26px;font-size:15px;color:var(--ink-2);line-height:1.8
  }
  .check-list li::before{
    content:"";position:absolute;left:0;top:9px;width:12px;height:12px;border-radius:50%;
    background:var(--bg-mint);border:2px solid var(--brand-2)
  }
  .tip-card{
    display:flex;gap:10px;align-items:flex-start;
    background:var(--bg-mint);border-radius:var(--r-sm);padding:14px 16px;margin-top:16px;
  }
  .tip-card .tip-label{
    flex-shrink:0;font-size:12px;font-weight:700;color:var(--brand-1);letter-spacing:.5px;
    background:var(--surface);border-radius:var(--r-xs);padding:2px 8px;line-height:1.6
  }
  .tip-card p{font-size:13.5px;line-height:1.7;color:var(--ink-2);margin:0}
  .step-figure{margin:18px 0}
  .step-figure img{border-radius:var(--r-md);width:100%;aspect-ratio:16/9;object-fit:cover;box-shadow:var(--sh-1)}
  .step-figure figcaption{font-size:13px;color:var(--ink-3);margin-top:8px}

  /* ---------- 数据徽章 ---------- */
  .stat-board{
    background:var(--bg-mint);border-radius:var(--r-lg);padding:40px 36px;
    border:1px solid rgba(15,155,142,.12);
  }
  .stat-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:28px}
  .stat-head h2{font-size:clamp(22px,2.2vw,28px)}
  .stat-head p{font-size:14px;color:var(--ink-2);max-width:520px}
  .stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
  .stat-item{
    background:var(--surface);border-radius:var(--r-md);padding:22px 20px;border:1px solid var(--line);
    position:relative;transition:transform var(--t),box-shadow var(--t)
  }
  .stat-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
  .stat-item .dot{
    position:absolute;right:16px;top:16px;width:10px;height:10px;border-radius:50%;
    background:var(--accent-1);box-shadow:0 0 0 3px rgba(255,122,89,.15)
  }
  .stat-item strong{
    display:block;font-size:44px;line-height:1.1;font-weight:800;color:var(--brand-1);
    font-variant-numeric:tabular-nums;letter-spacing:-1px
  }
  .stat-item strong small{font-size:16px;font-weight:700;margin-left:2px}
  .stat-item span{display:block;font-size:13px;color:var(--ink-2);line-height:1.6;margin-top:6px}

  /* ---------- 自查清单 ---------- */
  .check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
  .check-card{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
    padding:24px;box-shadow:var(--sh-1);transition:transform var(--t),box-shadow var(--t),border-color var(--t)
  }
  .check-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--brand-3)}
  .check-card .idx{
    display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;
    border-radius:var(--r-xs);background:var(--bg-mint);color:var(--brand-1);font-weight:700;
    font-size:14px;margin-bottom:12px;font-variant-numeric:tabular-nums
  }
  .check-card h3{font-size:17px;margin-bottom:8px}
  .check-card p{font-size:14.5px;color:var(--ink-2);line-height:1.8}

  /* ---------- CTA ---------- */
  .cta-board{
    background:var(--grad-brand);border-radius:var(--r-lg);padding:52px 48px;color:#fff;
    display:grid;grid-template-columns:1.3fr .7fr;gap:36px;align-items:center;
    box-shadow:0 24px 60px rgba(15,155,142,.24);position:relative;overflow:hidden
  }
  .cta-board::after{
    content:"";position:absolute;right:-80px;bottom:-120px;width:320px;height:320px;border-radius:50%;
    background:rgba(255,255,255,.12)
  }
  .cta-board h2{color:#fff;margin-bottom:12px;font-size:clamp(24px,2.6vw,32px)}
  .cta-board p{color:rgba(255,255,255,.9);font-size:15.5px;line-height:1.8;max-width:560px}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:1}
  .cta-actions .btn-light{background:#fff;color:var(--brand-1);box-shadow:0 10px 24px rgba(14,31,28,.14)}
  .cta-actions .btn-light:hover{color:var(--brand-1);transform:translateY(-2px);box-shadow:0 16px 32px rgba(14,31,28,.18)}
  .cta-actions .btn-outline{background:transparent;border-color:rgba(255,255,255,.7);color:#fff}
  .cta-actions .btn-outline:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px)}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--ink);color:#cfe0dc;padding:56px 0 26px;margin-top:0}
  .footer-grid{
    display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:36px;
    padding-bottom:34px;border-bottom:1px solid rgba(123,224,198,.22)
  }
  .site-footer .brand{color:#fff;margin-bottom:14px}
  .site-footer .brand:hover{color:#fff}
  .site-footer .brand-name{color:#fff}
  .footer-brand p{font-size:14px;line-height:1.8;color:#a9c2bd;max-width:320px}
  .footer-brand .contact{font-size:13px;color:#8fa8a3;margin-top:14px;line-height:1.9}
  .footer-col h4{color:#fff;font-size:15px;margin-bottom:14px}
  .footer-col ul{display:flex;flex-direction:column;gap:10px}
  .footer-col ul a{font-size:14px;color:#a9c2bd}
  .footer-col ul a:hover{color:var(--brand-3)}
  .footer-col p{font-size:13.5px;line-height:1.85;color:#8fa8a3}
  .footer-bottom{
    display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
    padding-top:22px;font-size:13px;color:#7f9994
  }
  .footer-bottom .domain{color:#6d8783}

  /* ---------- 响应式 ---------- */
  @media (max-width:1024px){
    .nav-links,.nav-search,.btn-text{display:none}
    .nav-toggle{display:inline-flex}
    .hero-grid{grid-template-columns:1fr;gap:32px}
    .hero-figure{order:2}
    .hero-badge{left:12px;bottom:12px}
    .guide-layout{grid-template-columns:1fr;gap:32px}
    .guide-toc{position:static}
    .toc-list{display:grid;grid-template-columns:1fr 1fr;gap:0 12px}
    .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
    .cta-board{grid-template-columns:1fr;padding:40px 32px}
  }
  @media (max-width:768px){
    .section{padding:64px 0}
    .section-tight{padding:44px 0}
    .header-inner{height:64px}
    .check-grid{grid-template-columns:1fr}
    .stat-board{padding:28px 22px}
    .page-hero h1{font-size:clamp(28px,6vw,36px)}
    .hero-sub{font-size:16px}
  }
  @media (max-width:520px){
    .section{padding:48px 0}
    .container{padding:0 16px}
    .hero-actions .btn{width:100%}
    .cta-actions{width:100%}
    .cta-actions .btn{width:100%}
    .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    .stat-item{padding:16px}
    .stat-item strong{font-size:34px}
    .toc-list{grid-template-columns:1fr}
    .guide-intro,.check-card{padding:18px}
    .step-num{width:38px;height:38px;font-size:14px}
    .footer-grid{grid-template-columns:1fr}
    .cta-board{padding:30px 22px;border-radius:var(--r-md)}
  }

/* roulang page: category4 */
:root{
  --brand-1:#0F9B8E;--brand-2:#17C0A9;--brand-3:#7BE0C6;
  --accent-1:#FF7A59;--accent-2:#FFC46B;
  --ink:#0E1F1C;--ink-2:#40534F;--ink-3:#788B87;
  --line:#E3EDE9;--surface:#FFFFFF;--bg:#F6FAF8;--bg-warm:#FFF7F2;--bg-mint:#EAF6F2;
  --grad-brand:linear-gradient(120deg,#0F9B8E 0%,#17C0A9 52%,#7BE0C6 100%);
  --grad-accent:linear-gradient(120deg,#FF7A59 0%,#FFC46B 100%);
  --r-xs:10px;--r-sm:14px;--r-md:20px;--r-lg:28px;--r-pill:999px;
  --sh-1:0 2px 6px rgba(14,31,28,.04),0 10px 24px rgba(15,155,142,.06);
  --sh-2:0 8px 20px rgba(14,31,28,.06),0 24px 56px rgba(15,155,142,.12);
  --container:1200px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;line-height:1.85;color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-md)}
a{color:var(--brand-1);text-decoration:none;transition:color 180ms var(--ease)}
a:hover{color:var(--brand-2)}
button,input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent-1);outline-offset:2px}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
h1{font-size:clamp(32px,4.4vw,52px);line-height:1.18;font-weight:800;letter-spacing:-.5px}
h2{font-size:clamp(24px,2.6vw,34px);line-height:1.25;font-weight:700;letter-spacing:-.3px}
h3{font-size:20px;line-height:1.4;font-weight:600}
h4{font-size:17px;line-height:1.5;font-weight:600}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-tight{padding:64px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;line-height:1.4;font-weight:600;color:var(--brand-1);
  background:var(--bg-mint);border-radius:var(--r-pill);padding:6px 14px;
}
.section-head{max-width:720px}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:16px}
.muted{color:var(--ink-2);font-size:15px;line-height:1.8}
.tiny{font-size:13px;line-height:1.7;color:var(--ink-3)}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow 180ms var(--ease),background 180ms var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-1);background:rgba(255,255,255,.96)}
.header-inner{display:flex;align-items:center;gap:20px;min-height:76px;transition:min-height 180ms var(--ease)}
.site-header.is-scrolled .header-inner{min-height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;font-size:18px;flex:0 0 auto}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:24px;height:24px;border-radius:8px;background:var(--grad-brand);
  display:grid;place-items:center;box-shadow:var(--sh-1);flex:0 0 auto;
}
.brand-mark svg{width:16px;height:16px;border-radius:0}
.brand-name{white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;flex:1 1 auto;min-width:0}
.nav-links a{
  display:inline-flex;align-items:center;min-height:38px;padding:6px 14px;
  border-radius:var(--r-pill);font-size:15px;font-weight:500;color:var(--ink-2);
  transition:background 180ms var(--ease),color 180ms var(--ease);
  white-space:nowrap;
}
.nav-links a:hover{background:var(--bg-mint);color:var(--brand-1)}
.nav-links a.is-active{background:var(--bg-mint);color:var(--brand-1);font-weight:600}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.search-box{
  display:flex;align-items:center;gap:8px;width:224px;height:40px;
  padding:0 14px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-pill);transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.search-box:focus-within{border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(23,192,169,.16)}
.search-box svg{width:16px;height:16px;flex:0 0 auto;color:var(--ink-3)}
.search-box input{border:0;background:transparent;outline:none;width:100%;font-size:14px;color:var(--ink)}
.search-box input::placeholder{color:var(--ink-3)}
.link-login{font-size:15px;font-weight:500;color:var(--ink-2);padding:8px 4px;min-height:44px;display:inline-flex;align-items:center}
.link-login:hover{color:var(--brand-1)}
.nav-toggle{
  display:none;align-items:center;justify-content:center;width:44px;height:44px;
  border-radius:var(--r-sm);border:1px solid var(--line);background:var(--surface);
  color:var(--ink-2);cursor:pointer;transition:background 180ms var(--ease),color 180ms var(--ease);
}
.nav-toggle:hover{background:var(--bg-mint);color:var(--brand-1)}
.nav-toggle svg{width:20px;height:20px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:0;cursor:pointer;text-align:center;
  transition:transform 180ms var(--ease),box-shadow 180ms var(--ease),background-position 180ms var(--ease),filter 180ms var(--ease),background 180ms var(--ease);
}
.btn:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn:active{transform:translateY(0);filter:brightness(.96);box-shadow:var(--sh-1)}
.btn-primary{background:var(--grad-accent);background-size:180% 100%;color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background-position:100% 0;color:#fff}
.btn-secondary{background:var(--surface);border:1.5px solid var(--brand-1);color:var(--brand-1);padding:9.5px 24px}
.btn-secondary:hover{background:var(--bg-mint);color:var(--brand-1)}
.btn-ghost{background:var(--bg-mint);color:var(--brand-1)}
.btn-ghost:hover{color:var(--brand-1);background:#e0f3ee}
.btn-sm{min-height:40px;padding:8px 18px;font-size:14px}

/* 移动端抽屉 */
.mobile-menu{display:none;border-top:1px solid var(--line);background:var(--surface);padding:14px 0 22px}
.mobile-menu.is-open{display:block}
.mobile-menu .nav-links{display:flex;flex-direction:column;align-items:stretch;gap:6px;margin:0 0 14px}
.mobile-menu .nav-links a{padding:11px 14px;min-height:44px;border-radius:var(--r-sm);font-size:16px}
.mobile-menu .search-box{width:100%;margin-bottom:12px}
.mobile-menu .mobile-actions{display:flex;gap:12px}
.mobile-menu .mobile-actions .btn{flex:1 1 0}

/* ============ 面包屑 ============ */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:16px}
.crumbs a{color:var(--ink-3)}
.crumbs a:hover{color:var(--brand-1)}
.crumbs .sep{color:var(--line)}
.crumbs .current{color:var(--ink-2);font-weight:600}

/* ============ Hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  padding:44px 0 72px;
  background:linear-gradient(180deg,var(--bg-warm) 0%,var(--bg) 78%);
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle at 30% 30%,rgba(23,192,169,.14),rgba(23,192,169,0) 70%);
  pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:center;position:relative;z-index:1}
.hero-copy h1{margin-bottom:18px}
.hero-sub{font-size:clamp(17px,1.6vw,20px);line-height:1.6;color:var(--ink-2);font-weight:500;margin-bottom:16px}
.hero-copy .lead{color:var(--ink-2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.hero-note{margin-top:20px;font-size:13px;color:var(--ink-3);display:flex;align-items:center;gap:8px}
.hero-note .dot{width:8px;height:8px;border-radius:50%;background:var(--brand-2);flex:0 0 auto}
.hero-figure{position:relative}
.hero-figure .frame{
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);
  border:1px solid rgba(255,255,255,.7);background:var(--surface);
}
.hero-figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11;border-radius:0}
.float-badge{
  position:absolute;left:-14px;bottom:-16px;
  display:flex;align-items:center;gap:12px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:12px 18px;box-shadow:var(--sh-2);
}
.float-badge .num{font-size:26px;font-weight:800;color:var(--brand-1);font-variant-numeric:tabular-nums;line-height:1.1}
.float-badge .txt{font-size:12px;line-height:1.5;color:var(--ink-2)}

/* 筛选胶囊 */
.filter-bar{margin-top:34px;display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.filter-bar .label{font-size:13px;color:var(--ink-3);margin-right:4px}
.pill{
  display:inline-flex;align-items:center;min-height:38px;padding:6px 16px;
  border-radius:var(--r-pill);border:1px solid var(--line);background:var(--surface);
  font-size:14px;color:var(--ink-2);cursor:pointer;
  transition:all 180ms var(--ease);
}
.pill:hover{border-color:var(--brand-3);color:var(--brand-1);background:var(--bg-mint);transform:translateY(-1px)}
.pill.is-active{background:var(--bg-mint);border-color:var(--brand-3);color:var(--brand-1);font-weight:600}

/* ============ 数据徽章 ============ */
.stats-wrap{background:var(--bg-mint);border-radius:var(--r-lg);padding:38px 34px;border:1px solid #dcefe9}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{
  background:rgba(255,255,255,.72);border:1px solid rgba(255,255,255,.9);
  border-radius:var(--r-md);padding:20px 18px;position:relative;
  transition:transform 180ms var(--ease),box-shadow 180ms var(--ease);
}
.stat:hover{transform:translateY(-2px);box-shadow:var(--sh-1)}
.stat .num{font-size:clamp(30px,3vw,42px);font-weight:800;line-height:1.1;color:var(--brand-1);font-variant-numeric:tabular-nums;letter-spacing:-1px}
.stat .num small{font-size:15px;font-weight:600;margin-left:2px;color:var(--ink-2)}
.stat .desc{font-size:13px;line-height:1.6;color:var(--ink-2);margin-top:8px}
.stat .tag-dot{position:absolute;right:16px;top:16px;width:8px;height:8px;border-radius:50%;background:var(--accent-1)}

/* ============ FAQ ============ */
.faq-section{background:var(--bg)}
.faq-grid{display:grid;grid-template-columns:5fr 7fr;gap:52px;align-items:start}
.faq-side{position:sticky;top:96px}
.faq-side h2{margin-bottom:14px}
.faq-side .muted{max-width:360px}
.contact-card{
  margin-top:26px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);padding:22px;box-shadow:var(--sh-1);
}
.contact-card h3{font-size:17px;margin-bottom:8px}
.contact-card p{font-size:14px;color:var(--ink-2);line-height:1.75}
.contact-card .mail{
  display:inline-flex;align-items:center;gap:8px;margin-top:14px;
  font-weight:600;font-size:15px;color:var(--brand-1);word-break:break-all;
}
.contact-card .mail:hover{color:var(--brand-2)}
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:background 180ms var(--ease),border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.faq-item:hover{border-color:var(--brand-3);box-shadow:var(--sh-2)}
.faq-item[open]{background:var(--bg-warm);border-color:var(--brand-3)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;font-size:16px;font-weight:600;color:var(--ink);
  cursor:pointer;list-style:none;min-height:56px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::marker{content:""}
.faq-item summary .plus{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;background:var(--bg-mint);color:var(--brand-1);
  font-size:18px;line-height:1;font-weight:600;
  transition:transform 180ms var(--ease),background 180ms var(--ease),color 180ms var(--ease);
}
.faq-item[open] summary .plus{transform:rotate(45deg);background:rgba(255,122,89,.14);color:var(--accent-1)}
.faq-answer{padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--ink-2)}
.faq-answer p+p{margin-top:10px}
.faq-answer strong{color:var(--ink);font-weight:600}

/* ============ 步骤 ============ */
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:40px}
.step-card{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);padding:28px 24px 24px;box-shadow:var(--sh-1);
  transition:transform 180ms var(--ease),box-shadow 180ms var(--ease),border-color 180ms var(--ease);
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--brand-3)}
.step-num{
  width:44px;height:44px;border-radius:50%;background:var(--grad-brand);color:#fff;
  display:grid;place-items:center;font-weight:700;font-size:17px;
  font-variant-numeric:tabular-nums;box-shadow:var(--sh-1);margin-bottom:18px;
}
.step-card h3{margin-bottom:10px}
.step-card p{font-size:14.5px;line-height:1.8;color:var(--ink-2)}
.step-card .hint{
  margin-top:16px;background:var(--bg-mint);border-radius:var(--r-xs);
  padding:12px 14px;font-size:13px;line-height:1.7;color:var(--brand-1);
}

/* ============ 设备与安全 ============ */
.device-section{background:var(--bg-warm);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.device-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center}
.device-media{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);border:1px solid rgba(255,255,255,.8)}
.device-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:0}
.device-list{display:flex;flex-direction:column;gap:14px;margin-top:26px}
.device-item{
  display:flex;gap:16px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);padding:18px 20px;box-shadow:var(--sh-1);
  transition:transform 180ms var(--ease),box-shadow 180ms var(--ease),border-color 180ms var(--ease);
}
.device-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--brand-3)}
.device-item .ico{
  flex:0 0 auto;width:40px;height:40px;border-radius:var(--r-xs);
  background:var(--bg-mint);color:var(--brand-1);display:grid;place-items:center;
}
.device-item .ico svg{width:20px;height:20px}
.device-item h4{margin-bottom:4px}
.device-item p{font-size:14px;line-height:1.75;color:var(--ink-2)}
.safe-note{
  margin-top:22px;background:var(--bg-warm);border-left:4px solid var(--accent-1);
  border-radius:var(--r-sm);padding:18px 20px;box-shadow:var(--sh-1);
}
.safe-note h4{margin-bottom:8px;color:var(--ink)}
.safe-note p{font-size:14px;line-height:1.8;color:var(--ink-2)}

/* ============ CTA ============ */
.cta-panel{
  background:var(--grad-brand);border-radius:var(--r-lg);padding:52px;
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
  box-shadow:var(--sh-2);position:relative;overflow:hidden;
}
.cta-panel::before{
  content:"";position:absolute;right:-80px;bottom:-120px;width:340px;height:340px;border-radius:50%;
  background:rgba(255,255,255,.12);
}
.cta-panel > *{position:relative;z-index:1}
.cta-panel h2{color:#fff;margin-bottom:14px}
.cta-panel p{color:rgba(255,255,255,.9);font-size:15px;line-height:1.8;max-width:420px}
.cta-panel .cta-mail{
  display:inline-flex;align-items:center;gap:8px;margin-top:22px;
  color:#fff;font-weight:600;font-size:16px;border-bottom:1px solid rgba(255,255,255,.5);
  padding-bottom:2px;word-break:break-all;
}
.cta-panel .cta-mail:hover{color:#fff;border-bottom-color:#fff}
.form-card{background:var(--surface);border-radius:var(--r-md);padding:26px;box-shadow:var(--sh-2)}
.form-card h3{font-size:18px;margin-bottom:6px}
.form-card .form-tip{font-size:13px;color:var(--ink-3);margin-bottom:16px}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;font-weight:500;color:var(--ink-2);margin-bottom:6px}
.field input,.field textarea{
  width:100%;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:12px 14px;font-size:15px;color:var(--ink);outline:none;
  transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.field textarea{resize:vertical;min-height:96px;line-height:1.7}
.field input:focus,.field textarea:focus{border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(23,192,169,.16)}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3)}
.form-card .btn{width:100%}
.privacy{font-size:12px;line-height:1.7;color:var(--ink-3);margin-top:12px}
.form-msg{display:none;margin-top:12px;font-size:13px;color:var(--brand-1);background:var(--bg-mint);border-radius:var(--r-xs);padding:10px 12px}
.form-msg.show{display:block}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:#c8d8d4;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:44px}
.footer-brand .brand{color:#fff;margin-bottom:16px}
.footer-brand .brand:hover{color:#fff}
.footer-brand .brand-mark{box-shadow:none}
.footer-brand p{font-size:14px;line-height:1.8;color:#a9bdb8;max-width:320px}
.footer-brand .contact{margin-top:16px;font-size:13px;line-height:1.9;color:#93a8a3;word-break:break-all}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col ul a{color:#a9bdb8;font-size:14px}
.footer-col ul a:hover{color:var(--brand-3)}
.footer-col p{font-size:13px;line-height:1.85;color:#93a8a3}
.footer-bottom{
  border-top:1px solid rgba(123,224,198,.22);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:#8fa4a0;
}
.footer-bottom .domain{color:#8fa4a0}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .search-box{width:190px}
  .nav-links a{padding:6px 11px;font-size:14px}
}
@media (max-width:1024px){
  .section{padding:64px 0}
  .section-tight{padding:52px 0}
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions .link-login{display:none}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-figure{order:2}
  .float-badge{left:12px;bottom:-14px}
  .faq-grid{grid-template-columns:1fr;gap:32px}
  .faq-side{position:static}
  .faq-side .muted{max-width:none}
  .device-grid{grid-template-columns:1fr;gap:32px}
  .cta-panel{grid-template-columns:1fr;padding:40px;gap:32px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .steps-grid{grid-template-columns:1fr;gap:18px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .search-box{display:none}
  .mobile-menu .search-box{display:flex}
  .header-inner{min-height:64px}
  .page-hero{padding:28px 0 52px}
  .hero-actions .btn{flex:1 1 auto}
  .stats-wrap{padding:26px 20px}
  .cta-panel{padding:30px 22px;border-radius:var(--r-md)}
  .form-card{padding:20px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:480px){
  body{font-size:15px}
  .container{padding:0 16px}
  .brand-name{font-size:16px}
  .header-actions .btn-primary{padding:10px 16px;font-size:14px;min-height:40px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .stat{padding:16px 14px}
  .faq-item summary{padding:16px;font-size:15px}
  .faq-answer{padding:0 16px 16px;font-size:14.5px}
  .float-badge{padding:10px 14px;gap:8px}
  .float-badge .num{font-size:22px}
  .step-card{padding:22px 18px}
  .device-item{padding:16px}
  .form-card .btn{width:100%}
}

/* roulang page: category5 */
:root{
  --brand-1:#0F9B8E;--brand-2:#17C0A9;--brand-3:#7BE0C6;
  --accent-1:#FF7A59;--accent-2:#FFC46B;
  --ink:#0E1F1C;--ink-2:#40534F;--ink-3:#788B87;
  --line:#E3EDE9;--surface:#FFFFFF;--bg:#F6FAF8;--bg-warm:#FFF7F2;--bg-mint:#EAF6F2;
  --grad-brand:linear-gradient(120deg,#0F9B8E 0%,#17C0A9 52%,#7BE0C6 100%);
  --grad-accent:linear-gradient(120deg,#FF7A59 0%,#FFC46B 100%);
  --r-xs:10px;--r-sm:14px;--r-md:20px;--r-lg:28px;--r-pill:999px;
  --sh-1:0 2px 6px rgba(14,31,28,.04),0 10px 24px rgba(15,155,142,.06);
  --sh-2:0 8px 20px rgba(14,31,28,.06),0 24px 56px rgba(15,155,142,.12);
  --container:1200px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;line-height:1.85;color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-1);text-decoration:none;transition:color 180ms var(--ease)}
a:hover{color:var(--brand-2)}
button{font:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--accent-1);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-tight{padding:56px 0}
.section-head{max-width:720px;margin-bottom:36px}
.section-title{font-size:clamp(24px,2.6vw,34px);line-height:1.25;font-weight:700;color:var(--ink);letter-spacing:-.2px}
.section-desc{margin-top:12px;font-size:15.5px;line-height:1.8;color:var(--ink-2)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--brand-1);background:var(--bg-mint);padding:6px 14px;border-radius:var(--r-pill);
}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent-1)}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.92);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);transition:box-shadow 180ms var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;gap:18px;height:76px;transition:height 180ms var(--ease)}
.site-header.is-scrolled .header-inner{height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--grad-brand);
  display:grid;place-items:center;box-shadow:var(--sh-1);flex:0 0 auto;
}
.brand-mark svg{width:22px;height:22px}
.brand-name{font-weight:700;font-size:18px;color:var(--ink);letter-spacing:.2px;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:10px;flex:1 1 auto;min-width:0}
.nav-links a{
  padding:8px 14px;border-radius:var(--r-pill);font-size:15px;color:var(--ink-2);font-weight:500;
  white-space:nowrap;transition:background 180ms var(--ease),color 180ms var(--ease);
}
.nav-links a:hover{background:var(--bg-mint);color:var(--brand-1)}
.nav-links a.is-active{background:var(--bg-mint);color:var(--brand-1);font-weight:600}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex:0 0 auto}
.search-box{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;width:236px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-pill);
  transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.search-box:focus-within{border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(23,192,169,.18)}
.search-ico{width:17px;height:17px;stroke:var(--ink-3);flex:0 0 auto}
.search-box input{
  border:0;outline:none;background:transparent;width:100%;font-size:14px;color:var(--ink);
  font-family:inherit;
}
.search-box input::placeholder{color:var(--ink-3)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);padding:12px 26px;font-size:15px;font-weight:600;border:0;
  cursor:pointer;min-height:44px;text-align:center;
  transition:transform 180ms var(--ease),box-shadow 180ms var(--ease),filter 180ms var(--ease),background-position 260ms var(--ease),background-color 180ms var(--ease),color 180ms var(--ease);
}
.btn-primary{background-image:var(--grad-accent);background-size:170% 100%;background-position:0 0;color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);background-position:100% 0}
.btn-primary:active{transform:translateY(0);filter:brightness(.96)}
.btn-secondary{background:var(--surface);border:1.5px solid var(--brand-1);color:var(--brand-1)}
.btn-secondary:hover{background:var(--bg-mint);color:var(--brand-1);transform:translateY(-2px);box-shadow:var(--sh-1)}
.btn-secondary:active{transform:translateY(0);filter:brightness(.96)}
.btn-ghost{background:var(--bg-mint);color:var(--brand-1)}
.btn-ghost:hover{background:#DFF2EC;color:var(--brand-1);transform:translateY(-2px);box-shadow:var(--sh-1)}
.btn-sm{padding:9px 20px;font-size:14px;min-height:40px}
.btn-text{
  background:transparent;color:var(--ink-2);padding:8px 12px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;display:inline-flex;align-items:center;min-height:44px;
  transition:background 180ms var(--ease),color 180ms var(--ease);
}
.btn-text:hover{background:var(--bg-mint);color:var(--brand-1)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:var(--surface);align-items:center;justify-content:center;flex-direction:column;
  gap:4px;cursor:pointer;padding:0;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-2);transition:transform 180ms var(--ease),opacity 180ms var(--ease)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ============ 页面头 ============ */
.page-hero{
  position:relative;overflow:hidden;padding:32px 0 72px;
  background:linear-gradient(180deg,var(--bg-warm) 0%,var(--bg) 100%);
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;right:-140px;top:-160px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(23,192,169,.16),rgba(23,192,169,0) 70%);pointer-events:none;
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:26px;flex-wrap:wrap}
.breadcrumb a{color:var(--ink-3)}
.breadcrumb a:hover{color:var(--brand-1)}
.breadcrumb .current{color:var(--ink-2);font-weight:600}
.hero-grid{display:grid;grid-template-columns:1.18fr .82fr;gap:48px;align-items:center;position:relative;z-index:1}
.hero-title{font-size:clamp(30px,3.8vw,46px);line-height:1.18;font-weight:800;letter-spacing:-.6px;margin-top:16px;color:var(--ink)}
.hero-sub{margin-top:16px;font-size:16.5px;line-height:1.8;color:var(--ink-2);max-width:540px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:24px;font-size:13.5px;color:var(--ink-3)}
.hero-meta li{display:flex;align-items:center;gap:7px}
.hero-meta li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-3)}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--sh-2);
}
.hero-badge{
  position:absolute;left:18px;bottom:18px;display:flex;align-items:center;gap:12px;
  background:rgba(255,255,255,.96);border-radius:18px;padding:12px 18px;box-shadow:var(--sh-2);
}
.hero-badge strong{font-size:30px;line-height:1;font-weight:800;color:var(--brand-1);font-variant-numeric:tabular-nums}
.hero-badge span{font-size:12.5px;color:var(--ink-2);line-height:1.4}

/* ============ 时间轴 ============ */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:36px}
.chip{
  padding:9px 18px;border-radius:var(--r-pill);border:1px solid var(--line);background:var(--surface);
  font-size:14px;color:var(--ink-2);cursor:pointer;min-height:40px;
  transition:border-color 180ms var(--ease),color 180ms var(--ease),background 180ms var(--ease),transform 180ms var(--ease);
}
.chip:hover{border-color:var(--brand-3);color:var(--brand-1);transform:translateY(-1px)}
.chip.is-on{background:var(--bg-mint);border-color:transparent;color:var(--brand-1);font-weight:600}
.chip:active{transform:translateY(0)}

.timeline{max-width:960px}
.tl-item{display:grid;grid-template-columns:88px 40px minmax(0,1fr);align-items:start;padding-bottom:28px}
.tl-date{text-align:right;padding-top:16px;font-variant-numeric:tabular-nums;padding-right:4px}
.tl-date .d{display:block;font-size:19px;font-weight:800;color:var(--ink);line-height:1.2}
.tl-date .y{display:block;font-size:12px;color:var(--ink-3);letter-spacing:.6px}
.tl-rail{position:relative;align-self:stretch;min-height:60px}
.tl-rail::before{
  content:"";position:absolute;left:50%;top:26px;bottom:-30px;width:2px;margin-left:-1px;
  background:linear-gradient(180deg,var(--brand-3),var(--line));
}
.tl-item:last-child .tl-rail::before{display:none}
.tl-dot{
  position:absolute;left:50%;top:20px;width:12px;height:12px;margin-left:-6px;border-radius:50%;
  background:var(--brand-1);box-shadow:0 0 0 4px rgba(23,192,169,.16);
}
.tl-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px 24px;box-shadow:var(--sh-1);
  transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease),transform 180ms var(--ease);
}
.tl-card:hover{border-color:var(--brand-3);box-shadow:var(--sh-2);transform:translateY(-2px)}
.tl-card-top{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:10px}
.tl-title{font-size:18px;line-height:1.45;font-weight:600;color:var(--ink)}
.tl-desc{margin-top:8px;font-size:14.5px;line-height:1.8;color:var(--ink-2)}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-pill);
  background:var(--bg-mint);color:var(--brand-1);font-size:12.5px;font-weight:600;line-height:1.5;
}
.tag-accent{background:rgba(255,122,89,.12);color:#C9482A}
.tag-line{background:var(--surface);border:1px solid var(--line);color:var(--ink-3)}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-1);margin-top:14px;
}
.link-arrow span{transition:transform 180ms var(--ease)}
.link-arrow:hover{color:var(--brand-2)}
.link-arrow:hover span{transform:translateX(4px)}

/* ============ 更新要点 ============ */
.focus-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:stretch}
.focus-side{display:grid;gap:24px}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease),transform 180ms var(--ease);
}
.card:hover{border-color:var(--brand-3);box-shadow:var(--sh-2);transform:translateY(-2px)}
.card-media{overflow:hidden;aspect-ratio:16/9;background:var(--bg-mint)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:24px}
.card-title{font-size:20px;line-height:1.4;font-weight:600;color:var(--ink)}
.card-text{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--ink-2)}
.mini-card{display:block;padding:24px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease),transform 180ms var(--ease)}
.mini-card:hover{border-color:var(--brand-3);box-shadow:var(--sh-2);transform:translateY(-2px);color:inherit}
.mini-card .card-title{font-size:17px}
.mini-icon{
  width:42px;height:42px;border-radius:14px;background:var(--bg-mint);display:grid;place-items:center;margin-bottom:16px;
}
.mini-icon svg{width:22px;height:22px;stroke:var(--brand-1);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

/* ============ 数据徽章 ============ */
.stats-panel{
  background:var(--bg-mint);border-radius:var(--r-lg);padding:40px;
  display:grid;grid-template-columns:1.45fr 1fr;gap:40px;align-items:center;
}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{background:rgba(255,255,255,.72);border-radius:var(--r-sm);padding:18px 16px}
.stat-num{font-size:clamp(26px,2.8vw,36px);line-height:1.1;font-weight:800;color:var(--brand-1);font-variant-numeric:tabular-nums}
.stat-num em{font-style:normal;font-size:13px;font-weight:600;color:var(--ink-2);margin-left:4px}
.stat-label{display:block;margin-top:8px;font-size:13px;line-height:1.5;color:var(--ink-2)}
.stats-copy .section-title{font-size:clamp(22px,2.2vw,28px)}
.stats-copy p{margin-top:12px;font-size:14.5px;line-height:1.85;color:var(--ink-2)}

/* ============ 提醒订阅 ============ */
.notice-card{
  display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:40px;box-shadow:var(--sh-1);
}
.notice-card .section-title{font-size:clamp(22px,2.2vw,28px)}
.notice-card p{margin-top:12px;font-size:14.5px;line-height:1.85;color:var(--ink-2)}
.form-row{display:grid;gap:14px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink-2);margin-bottom:6px}
.field input,.field textarea{
  width:100%;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:12px 14px;font-size:15px;color:var(--ink);font-family:inherit;
  transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(23,192,169,.18)}
.field textarea{resize:vertical;min-height:96px}
.inline-form{display:flex;gap:10px;flex-wrap:wrap}
.inline-form input{flex:1 1 220px}
.form-note{font-size:12px;line-height:1.7;color:var(--ink-3);margin-top:12px}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:start}
.faq-aside{position:sticky;top:104px}
.faq-aside .section-desc{margin-top:12px}
.contact-card{
  margin-top:24px;background:var(--bg-warm);border-radius:var(--r-md);padding:20px 22px;
  border:1px solid rgba(255,122,89,.25);
}
.contact-card h3{font-size:16px;font-weight:600;color:var(--ink)}
.contact-card p{margin-top:6px;font-size:13.5px;line-height:1.8;color:var(--ink-2)}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);margin-bottom:12px;
  transition:background 180ms var(--ease),border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.faq-item:hover{border-color:var(--brand-3);box-shadow:var(--sh-1)}
.faq-item[open]{background:var(--bg-warm);border-color:rgba(255,122,89,.35)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:16px 20px;font-size:16px;font-weight:600;color:var(--ink);min-height:44px;
}
.faq-item summary::-webkit-details-marker{display:none}
.plus{
  flex:0 0 auto;width:24px;height:24px;display:grid;place-items:center;font-size:20px;font-weight:500;
  color:var(--brand-1);transition:transform 180ms var(--ease);line-height:1;
}
.faq-item[open] .plus{transform:rotate(45deg)}
.faq-body{padding:0 20px 18px;font-size:15px;line-height:1.8;color:var(--ink-2)}

/* ============ CTA ============ */
.cta-panel{
  position:relative;overflow:hidden;background-image:var(--grad-brand);border-radius:var(--r-lg);
  padding:48px;display:grid;grid-template-columns:1.35fr 1fr;gap:32px;align-items:center;
  box-shadow:var(--sh-2);
}
.cta-panel::after{
  content:"";position:absolute;right:-80px;bottom:-120px;width:320px;height:320px;border-radius:50%;
  background:rgba(255,255,255,.12);
}
.cta-title{font-size:clamp(22px,2.4vw,30px);line-height:1.3;font-weight:700;color:#fff}
.cta-text{margin-top:12px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.9)}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;position:relative;z-index:1}
.cta-panel .btn-secondary{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.62);color:#fff}
.cta-panel .btn-secondary:hover{background:rgba(255,255,255,.26);color:#fff}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:#c9dcd7;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.5fr;gap:40px}
.site-footer .brand-name{color:#fff}
.footer-brand p{font-size:14px;line-height:1.8;color:#9FB8B2;margin:16px 0 0;max-width:340px}
.footer-brand .contact{font-size:13px;line-height:1.95;color:#8AA6A0;margin-top:16px}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:#9FB8B2}
.footer-col a:hover{color:var(--brand-3)}
.footer-col p{font-size:13.5px;line-height:1.9;color:#8AA6A0}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(123,224,198,.2);margin-top:44px;padding-top:20px;
  font-size:13px;color:#7D9993;
}
.footer-bottom .domain{font-variant-numeric:tabular-nums}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .nav-links{
    position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:2px;
    background:var(--surface);border-bottom:1px solid var(--line);box-shadow:var(--sh-2);
    padding:12px 16px 18px;margin-left:0;display:none;
  }
  .nav-links.is-open{display:flex}
  .nav-links a{padding:12px 14px;border-radius:var(--r-sm);font-size:15px}
  .search-box{display:none}
  .nav-toggle{display:inline-flex}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-visual{order:2}
  .focus-grid{grid-template-columns:1fr}
  .focus-side{grid-template-columns:1fr 1fr}
  .stats-panel{grid-template-columns:1fr;gap:28px}
  .stats-grid{grid-template-columns:repeat(4,1fr)}
  .notice-card{grid-template-columns:1fr;gap:24px;padding:32px}
  .faq-grid{grid-template-columns:1fr;gap:28px}
  .faq-aside{position:static}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
  .footer-col:last-child{grid-column:1 / -1}
}
@media (max-width:768px){
  .section{padding:64px 0}
  .section-tight{padding:48px 0}
  .page-hero{padding:24px 0 56px}
  .hero-badge{left:12px;bottom:12px;padding:10px 14px}
  .hero-badge strong{font-size:24px}
  .stats-panel{padding:28px}
  .stats-grid{grid-template-columns:1fr 1fr}
  .focus-side{grid-template-columns:1fr}
  .tl-item{grid-template-columns:1fr;padding-bottom:22px}
  .tl-rail{display:none}
  .tl-date{display:flex;align-items:baseline;gap:8px;text-align:left;padding:0 0 8px 2px}
  .tl-date .d{font-size:16px}
  .tl-date .y{font-size:11px}
  .tl-card{padding:18px}
  .cta-panel{grid-template-columns:1fr;padding:32px;gap:24px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1 / -1}
  .footer-col:last-child{grid-column:1 / -1}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .header-inner{height:66px;gap:10px}
  .brand-name{font-size:16px}
  .brand-mark{width:30px;height:30px;border-radius:9px}
  .brand-mark svg{width:19px;height:19px}
  .hero-title{font-size:28px}
  .hero-sub{font-size:15px}
  .hero-actions .btn,.cta-actions .btn{width:100%}
  .hero-meta{flex-direction:column;gap:8px}
  .stats-grid{grid-template-columns:1fr 1fr;gap:12px}
  .stat{padding:14px 12px}
  .notice-card,.stats-panel,.cta-panel{padding:22px;border-radius:var(--r-md)}
  .card-body{padding:18px}
  .faq-item summary{padding:14px 16px;font-size:15px}
  .faq-body{padding:0 16px 16px;font-size:14.5px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
  .inline-form input{flex:1 1 100%}
  .inline-form .btn{width:100%}
}