/* roulang page: index */
:root{
  --c-primary-900:#0B2C55;
  --c-primary-700:#124A8C;
  --c-primary:#1667C9;
  --c-primary-500:#3B86DE;
  --c-primary-100:#E6EFFB;
  --c-bg:#F5F8FC;
  --c-surface:#FFFFFF;
  --c-accent:#FF7A1A;
  --c-accent-100:#FFF0E3;
  --c-ok:#12A67A;
  --c-text:#16202E;
  --c-text-2:#5B6879;
  --c-text-3:#8A96A6;
  --c-line:#E4EAF3;
  --sh-sm:0 1px 2px rgba(16,42,80,.06),0 2px 8px rgba(16,42,80,.05);
  --sh-md:0 6px 20px rgba(16,42,80,.08);
  --sh-lg:0 16px 40px rgba(16,42,80,.10);
  --r-btn:10px;
  --r-card:16px;
  --r-block:20px;
  --r-chip:999px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --mono:"DIN Alternate","Bahnschrift",ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,Arial,sans-serif;
  font-size:16px;line-height:1.75;color:var(--c-text);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-primary);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--c-primary-700)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.grid-x{display:flex;flex-flow:row wrap}
.cell{flex:1 1 auto;min-width:0}

/* ---------- 顶部倒计时条 ---------- */
.countdown-bar{background:linear-gradient(90deg,#0B2C55 0%,#1667C9 100%);color:#fff}
.countdown-inner{display:flex;align-items:center;gap:16px;min-height:48px;padding-top:6px;padding-bottom:6px}
.cd-badge{display:inline-flex;align-items:center;gap:7px;background:rgba(255,255,255,.15);border-radius:var(--r-chip);padding:4px 13px;font-size:12px;letter-spacing:.4px;flex:none}
.cd-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--c-accent);box-shadow:0 0 0 3px rgba(255,122,26,.22)}
.cd-text{font-size:13px;color:rgba(255,255,255,.82)}
.cd-timer{display:flex;align-items:center;gap:6px;margin-left:auto}
.cd-num{display:inline-grid;place-items:center;width:32px;height:32px;border-radius:8px;background:rgba(255,255,255,.16);font-family:var(--mono);font-weight:700;font-size:15px;font-variant-numeric:tabular-nums;color:#fff}
.cd-colon{font-family:var(--mono);font-weight:700;color:rgba(255,255,255,.6);font-size:14px}
.cd-btn{flex:none;display:inline-flex;align-items:center;height:32px;padding:0 16px;border-radius:8px;border:1px solid rgba(255,255,255,.55);color:#fff;font-size:13px;font-weight:600;transition:background .2s var(--ease)}
.cd-btn:hover{background:rgba(255,255,255,.16);color:#fff}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:120;background:#fff;border-bottom:1px solid var(--c-line);transition:box-shadow .25s var(--ease)}
.site-header.scrolled{box-shadow:var(--sh-sm)}
.nav-inner{display:flex;align-items:center;gap:28px;height:76px;transition:height .25s var(--ease)}
.site-header.scrolled .nav-inner{height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,#1667C9,#0B2C55);color:#fff;display:grid;place-items:center;font-weight:700;font-size:17px;letter-spacing:0}
.brand-text{font-size:20px;font-weight:700;color:var(--c-primary-900);letter-spacing:.2px;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:8px}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--c-text-2);padding:6px 0;white-space:nowrap}
.nav-link::after{content:"";position:absolute;left:50%;right:50%;bottom:0;height:2px;border-radius:2px;background:var(--c-primary);transition:left .25s var(--ease),right .25s var(--ease)}
.nav-link:hover{color:var(--c-primary)}
.nav-link:hover::after{left:0;right:0}
.nav-link.active{color:var(--c-primary)}
.nav-link.active::after{left:0;right:0}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .22s var(--ease),background .22s var(--ease),box-shadow .22s var(--ease),color .22s var(--ease)}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 6px 16px rgba(255,122,26,.26)}
.btn-accent:hover{background:#EA6A0C;color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(255,122,26,.32)}
.btn-outline{background:#fff;border-color:var(--c-primary);color:var(--c-primary)}
.btn-outline:hover{background:var(--c-primary-100);color:var(--c-primary-700);transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.4);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-lg{height:52px;padding:0 30px;font-size:16px}
.btn-block{width:100%}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--c-line);background:#fff;border-radius:10px;flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer;margin-left:auto}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--c-primary-900);border-radius:2px;transition:transform .25s var(--ease),opacity .25s var(--ease)}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 抽屉 */
.drawer{position:fixed;top:0;right:0;bottom:0;width:84%;max-width:340px;background:#fff;z-index:200;transform:translateX(105%);transition:transform .3s var(--ease);display:flex;flex-direction:column;box-shadow:-8px 0 32px rgba(16,42,80,.14)}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--c-line)}
.drawer-close{width:40px;height:40px;border:1px solid var(--c-line);background:#fff;border-radius:10px;cursor:pointer;color:var(--c-text-2);font-size:16px}
.drawer-nav{padding:12px 12px 0;flex:1;overflow-y:auto}
.drawer-nav a{display:block;padding:14px 14px;border-radius:10px;font-size:16px;font-weight:500;color:var(--c-text);transition:background .2s var(--ease),color .2s var(--ease)}
.drawer-nav a:hover{background:var(--c-primary-100);color:var(--c-primary)}
.drawer-nav a.active{background:var(--c-primary-100);color:var(--c-primary);font-weight:600}
.drawer-actions{display:flex;gap:12px;padding:16px 20px calc(20px + env(safe-area-inset-bottom));border-top:1px solid var(--c-line)}
.drawer-actions .btn{flex:1}
.drawer-mask{position:fixed;inset:0;background:rgba(11,44,85,.45);opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s var(--ease);z-index:190}
.drawer-mask.open{opacity:1;visibility:visible}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:72px 0 88px;background:linear-gradient(158deg,#FFFFFF 0%,#F0F6FE 62%,#E9F1FC 100%)}
.hero::after{content:"";position:absolute;top:-80px;right:-60px;width:440px;height:440px;background-image:radial-gradient(rgba(22,103,201,.20) 1.5px,transparent 1.5px);background-size:20px 20px;opacity:.6;pointer-events:none}
.hero::before{content:"";position:absolute;left:-120px;bottom:-160px;width:420px;height:420px;border:1px solid rgba(22,103,201,.16);border-radius:50%;pointer-events:none}
.hero .container{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--c-primary);background:var(--c-primary-100);border-radius:var(--r-chip);padding:5px 14px;margin-bottom:20px}
.hero h1{font-size:clamp(28px,4vw,46px);line-height:1.25;font-weight:700;color:var(--c-primary-900);letter-spacing:.2px}
.hero h1 em{font-style:normal;color:var(--c-primary);position:relative}
.hero h1 em::after{content:"";position:absolute;left:0;right:0;bottom:2px;height:8px;background:rgba(255,122,26,.20);border-radius:4px;z-index:-1}
.hero-sub{margin-top:20px;font-size:16px;line-height:1.8;color:var(--c-text-2);max-width:560px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;align-items:center}
.hero-cta-note{font-size:13px;color:var(--c-text-3)}
.hero-facts{display:flex;margin-top:36px;padding-top:24px;border-top:1px solid var(--c-line)}
.hero-facts .fact{padding-right:28px;margin-right:28px;border-right:1px solid var(--c-line)}
.hero-facts .fact:last-child{border-right:0;margin-right:0;padding-right:0}
.fact-k{display:block;font-size:13px;color:var(--c-text-3);margin-bottom:2px}
.fact-v{display:block;font-size:16px;font-weight:600;color:var(--c-text)}
.hero-media{position:relative;border-radius:var(--r-block);overflow:hidden;box-shadow:var(--sh-lg);aspect-ratio:16/10;animation:floaty 6s ease-in-out infinite}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-badge{position:absolute;left:18px;bottom:18px;background:#fff;border-radius:12px;padding:10px 16px;box-shadow:var(--sh-md);font-size:13px;font-weight:600;color:var(--c-primary-900);display:flex;align-items:center;gap:8px}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--c-ok)}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section-white{background:#fff}
.section-head{max-width:700px;margin-bottom:44px}
.section-head h2{font-size:28px;line-height:1.35;font-weight:600;color:var(--c-primary-900);letter-spacing:.2px}
.section-head p{margin-top:12px;color:var(--c-text-2);font-size:15px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}

/* ---------- 卖点 ---------- */
.sell-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:24px}
.sell-main{position:relative;border-radius:var(--r-card);overflow:hidden;min-height:400px;display:flex;flex-direction:column;justify-content:flex-end;padding:36px;color:#fff;box-shadow:var(--sh-md);transition:transform .25s var(--ease),box-shadow .25s var(--ease)}
.sell-main:hover{transform:translateY(-4px);box-shadow:var(--sh-lg)}
.sell-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.sell-main::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,44,85,.15) 0%,rgba(11,44,85,.88) 100%);z-index:1}
.sell-main>*{position:relative;z-index:2}
.sell-main h3{font-size:24px;line-height:1.45;font-weight:600;margin-bottom:12px}
.sell-main p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.86);max-width:520px}
.sell-num{font-family:var(--mono);font-size:13px;font-weight:700;color:var(--c-accent);letter-spacing:1px;margin-bottom:14px;display:block}
.sell-side{display:grid;grid-template-rows:1fr 1fr;gap:24px}
.sell-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:30px;box-shadow:var(--sh-sm);transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease)}
.sell-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:#D3E1F5}
.sell-card .icon{width:44px;height:44px;border-radius:12px;background:var(--c-primary-100);color:var(--c-primary);display:grid;place-items:center;font-size:18px;margin-bottom:18px}
.sell-card h3{font-size:20px;font-weight:600;color:var(--c-primary-900);margin-bottom:10px;line-height:1.45}
.sell-card p{font-size:14.5px;color:var(--c-text-2);line-height:1.8}

/* ---------- 图墙 ---------- */
.wall{display:grid;grid-template-columns:repeat(12,1fr);grid-auto-rows:216px;gap:16px}
.wall-item{position:relative;border-radius:var(--r-card);overflow:hidden;display:block;background:var(--c-primary-900)}
.wall-item img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.wall-item::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,44,85,0) 45%,rgba(11,44,85,.82) 100%);transition:opacity .3s var(--ease)}
.wall-item:hover img{transform:scale(1.06)}
.wall-item span{position:absolute;left:20px;right:20px;bottom:16px;z-index:2;color:#fff;font-size:15px;font-weight:600;transform:translateY(6px);opacity:.92;transition:transform .3s var(--ease),opacity .3s var(--ease)}
.wall-item:hover span{transform:translateY(0);opacity:1}
.wall-item.w-lg{grid-column:span 6}
.wall-item.w-sm{grid-column:span 3}

/* ---------- 最新信息 ---------- */
.news-layout{display:grid;grid-template-columns:5fr 7fr;gap:32px;align-items:start}
.news-feature{display:block;background:#fff;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--c-line);box-shadow:var(--sh-sm);transition:transform .25s var(--ease),box-shadow .25s var(--ease)}
.news-feature:hover{transform:translateY(-4px);box-shadow:var(--sh-lg)}
.news-feature-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--c-primary-100)}
.news-feature-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.news-feature:hover .news-feature-thumb img{transform:scale(1.05)}
.news-feature-body{padding:24px}
.news-feature-body h3{font-size:20px;line-height:1.5;font-weight:600;color:var(--c-primary-900);margin:12px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-feature-body p{font-size:14.5px;color:var(--c-text-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-feature-foot{display:flex;align-items:center;justify-content:space-between;margin-top:18px;padding-top:16px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-text-3);font-variant-numeric:tabular-nums}
.news-feature-foot .arrow{color:var(--c-primary);font-weight:700;transition:transform .25s var(--ease)}
.news-feature:hover .news-feature-foot .arrow{transform:translateX(4px)}
.chip{display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-chip);background:var(--c-primary-100);color:var(--c-primary);font-size:12px;font-weight:600}
.news-list{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:8px 12px;box-shadow:var(--sh-sm)}
.news-row{display:flex;align-items:center;gap:16px;padding:16px 10px;border-bottom:1px dashed var(--c-line);border-radius:10px;transition:background .2s var(--ease)}
.news-row:last-child{border-bottom:0}
.news-row:hover{background:var(--c-bg)}
.news-row time{flex:none;font-size:14px;color:var(--c-text-3);font-variant-numeric:tabular-nums;font-family:var(--mono);min-width:88px}
.news-row .news-title{flex:1;font-size:16px;font-weight:500;color:var(--c-text);line-height:1.6;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;transition:color .2s var(--ease)}
.news-row:hover .news-title{color:var(--c-primary)}
.news-row .chip{flex:none}
.news-empty{border:1px dashed #C9D8EC;border-radius:var(--r-card);background:#fff;min-height:180px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;color:var(--c-text-3);font-size:14.5px;padding:32px}
.news-empty i{font-size:26px;color:#B7C8DE}

/* ---------- 数据条 ---------- */
.stats-band{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-block);padding:36px 8px;display:grid;grid-template-columns:repeat(4,1fr);box-shadow:var(--sh-sm)}
.stat{padding:0 28px;border-right:1px solid var(--c-line)}
.stat:last-child{border-right:0}
.stat-num{font-family:var(--mono);font-size:40px;line-height:1.1;font-weight:700;color:var(--c-primary-700);font-variant-numeric:tabular-nums}
.stat-num small{font-size:15px;font-weight:600;margin-left:4px;color:var(--c-primary-500)}
.stat-label{margin-top:8px;font-size:13px;color:var(--c-text-3)}

/* ---------- CTA ---------- */
.cta-block{position:relative;overflow:hidden;background:var(--c-primary-900);border-radius:var(--r-block);padding:64px;display:grid;grid-template-columns:7fr 5fr;gap:52px;color:#fff}
.cta-block::after{content:"";position:absolute;right:-100px;top:-100px;width:380px;height:380px;border:1px solid rgba(255,255,255,.10);border-radius:50%}
.cta-block::before{content:"";position:absolute;right:-20px;bottom:-140px;width:280px;height:280px;border:1px solid rgba(255,255,255,.08);border-radius:50%}
.cta-block>*{position:relative;z-index:2}
.cta-copy h2{font-size:28px;line-height:1.4;font-weight:600;letter-spacing:.2px}
.cta-copy p{margin-top:16px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.78);max-width:520px}
.cta-points{margin-top:26px;display:grid;gap:10px}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:rgba(255,255,255,.86)}
.cta-points i{color:var(--c-accent);margin-top:5px;font-size:13px}
.form-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-card);padding:28px}
.form-card h3{font-size:18px;font-weight:600;margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:rgba(255,255,255,.75);margin-bottom:8px}
.field input,.field select,.field textarea{width:100%;height:48px;border-radius:var(--r-btn);border:1px solid #DCE4EF;background:#fff;color:var(--c-text);padding:0 14px;font-size:15px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.field textarea{height:88px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(22,103,201,.14)}
.form-note{margin-top:12px;font-size:12px;color:rgba(255,255,255,.55);line-height:1.7}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:52px;align-items:start}
.faq-aside{position:sticky;top:104px}
.faq-aside h2{font-size:28px;line-height:1.4;font-weight:600;color:var(--c-primary-900)}
.faq-aside p{margin-top:14px;font-size:15px;color:var(--c-text-2);line-height:1.8}
.faq-aside .btn{margin-top:24px}
.faq-item{background:#fff;border:1px solid var(--c-line);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:box-shadow .25s var(--ease),border-color .25s var(--ease)}
.faq-item.open{box-shadow:var(--sh-sm);border-left:3px solid var(--c-primary)}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;text-align:left;background:none;border:0;padding:18px 22px;font-size:17px;font-weight:600;color:var(--c-primary-900);cursor:pointer}
.faq-q .sign{flex:none;width:26px;height:26px;border-radius:8px;background:var(--c-primary-100);color:var(--c-primary);display:grid;place-items:center;font-size:14px;transition:transform .25s var(--ease),background .25s var(--ease),color .25s var(--ease)}
.faq-item.open .faq-q .sign{background:var(--c-accent);color:#fff;transform:rotate(135deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s var(--ease)}
.faq-a p{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--c-text-2)}
.faq-item.open .faq-a{max-height:420px}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;border-top:1px solid var(--c-line);margin-top:96px;padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.3fr;gap:44px}
.footer-brand .brand{margin-bottom:18px}
.footer-desc{font-size:14px;color:var(--c-text-2);line-height:1.85;max-width:320px}
.footer-col h4{position:relative;font-size:15px;font-weight:600;color:var(--c-primary-900);padding-bottom:12px;margin-bottom:16px}
.footer-col h4::after{content:"";position:absolute;left:0;bottom:0;width:24px;height:2px;border-radius:2px;background:var(--c-primary)}
.footer-links a{display:block;font-size:14px;color:var(--c-text-2);padding:6px 0;transition:color .2s var(--ease),transform .2s var(--ease)}
.footer-links a:hover{color:var(--c-primary);transform:translateX(2px)}
.footer-contact li{font-size:14px;color:var(--c-text-2);padding:6px 0;display:flex;gap:10px;align-items:flex-start}
.footer-contact i{color:var(--c-primary);margin-top:5px;font-size:13px}
.footer-bottom{margin-top:56px;background:var(--c-primary-900);color:rgba(255,255,255,.72);font-size:13px}
.footer-bottom .container{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;padding-top:18px;padding-bottom:18px}
.footer-bottom a{color:rgba(255,255,255,.8)}
.footer-bottom a:hover{color:#fff}

/* 回到顶部 */
.to-top{position:fixed;right:24px;bottom:28px;width:44px;height:44px;border-radius:50%;border:1px solid var(--c-line);background:#fff;color:var(--c-primary);display:grid;place-items:center;box-shadow:var(--sh-md);cursor:pointer;opacity:0;visibility:hidden;transition:opacity .25s var(--ease),visibility .25s var(--ease),transform .25s var(--ease);z-index:150}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{transform:translateY(-3px);background:var(--c-primary-100)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{max-width:1140px}
  .hero-grid{gap:40px}
  .cta-block{padding:52px}
}
@media (max-width:1023px){
  .main-nav,.nav-actions{display:none}
  .nav-toggle{display:flex}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero{padding:56px 0 64px}
  .section{padding:72px 0}
  .sell-grid{grid-template-columns:1fr}
  .sell-main{min-height:340px}
  .sell-side{grid-template-rows:none;grid-template-columns:1fr 1fr}
  .wall{grid-auto-rows:180px}
  .wall-item.w-lg{grid-column:span 6}
  .wall-item.w-sm{grid-column:span 3}
  .news-layout{grid-template-columns:1fr;gap:24px}
  .stats-band{grid-template-columns:repeat(2,1fr);gap:28px 0;padding:32px 8px}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(1),.stat:nth-child(2){padding-bottom:0}
  .cta-block{grid-template-columns:1fr;gap:36px;padding:44px 32px}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .faq-aside{position:static}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:767px){
  .section{padding:60px 0}
  .section-head h2,.faq-aside h2,.cta-copy h2{font-size:24px}
  .sell-side{grid-template-columns:1fr}
  .wall{grid-template-columns:repeat(2,1fr);grid-auto-rows:150px;gap:12px}
  .wall-item.w-lg,.wall-item.w-sm{grid-column:span 1}
  .hero-facts{flex-direction:column;gap:14px}
  .hero-facts .fact{border-right:0;margin:0;padding:0;border-bottom:1px solid var(--c-line);padding-bottom:14px}
  .hero-facts .fact:last-child{border-bottom:0;padding-bottom:0}
  .news-row{flex-wrap:wrap;gap:8px 14px}
  .news-row .news-title{-webkit-line-clamp:2;flex-basis:100%;order:3}
  .news-row time{min-width:auto}
  .news-row .chip{margin-left:auto}
  .stat-num{font-size:32px}
  .stat{padding:0 18px}
  .footer-grid{grid-template-columns:1fr}
  .site-footer{margin-top:64px;padding-top:48px}
  .to-top{right:16px;bottom:18px}
}
@media (max-width:639px){
  .container{padding:0 16px}
  .countdown-inner{gap:10px;flex-wrap:wrap;padding-top:8px;padding-bottom:8px}
  .cd-text{display:none}
  .cd-timer{margin-left:auto}
  .cd-num{width:26px;height:26px;font-size:13px}
  .cd-btn{height:28px;padding:0 12px;font-size:12px}
  .hero h1{font-size:28px}
  .hero-media{aspect-ratio:4/3}
  .cta-block{padding:32px 20px}
  .form-card{padding:20px}
  .stats-band{grid-template-columns:1fr 1fr;padding:26px 4px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .hero-media{animation:none}
}

/* roulang page: article */
:root{
  --c-primary-900:#0B2C55;
  --c-primary-700:#124A8C;
  --c-primary:#1667C9;
  --c-primary-500:#3B86DE;
  --c-primary-100:#E6EFFB;
  --c-bg:#F5F8FC;
  --c-surface:#FFFFFF;
  --c-accent:#FF7A1A;
  --c-accent-100:#FFF0E3;
  --c-ok:#12A67A;
  --c-text:#16202E;
  --c-text-2:#5B6879;
  --c-text-3:#8A96A6;
  --c-line:#E4EAF3;
  --r-btn:10px;
  --r-card:16px;
  --r-block:20px;
  --r-img:14px;
  --sh-sm:0 1px 2px rgba(16,42,80,.06),0 2px 8px rgba(16,42,80,.05);
  --sh-md:0 6px 20px rgba(16,42,80,.08);
  --sh-lg:0 16px 40px rgba(16,42,80,.10);
  --container:1200px;
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,Arial,sans-serif;
  --font-num:"DIN Alternate","Bahnschrift",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-700);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding-left:1.1em;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid var(--c-primary);
  outline-offset:2px;
  border-radius:4px;
}

/* ---------- 按钮体系 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  letter-spacing:.2px;
  border:1px solid transparent;
  cursor:pointer;
  transition:all .25s cubic-bezier(.2,.7,.3,1);
  white-space:nowrap;
}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 6px 16px rgba(255,122,26,.24);}
.btn-primary:hover{background:#EA6A0C;color:#fff;transform:translateY(-1px);}
.btn-outline{border-color:var(--c-primary);color:var(--c-primary);background:#fff;}
.btn-outline:hover{background:var(--c-primary-100);color:var(--c-primary-700);}
.btn-ghost{color:var(--c-primary);background:transparent;border-color:var(--c-line);}
.btn-ghost:hover{background:#fff;border-color:var(--c-primary-500);color:var(--c-primary-700);}
.btn-dark-outline{border-color:rgba(255,255,255,.55);color:#fff;background:transparent;}
.btn-dark-outline:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}
.btn-lg{height:48px;padding:0 26px;font-size:16px;}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease;
}
.site-header.scrolled{box-shadow:var(--sh-sm);}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:76px;
  transition:height .25s ease;
}
.site-header.scrolled .header-inner{height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(140deg,var(--c-primary-700),var(--c-primary));
  color:#fff;font-size:18px;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-sm);
}
.brand-text{font-size:20px;font-weight:700;color:var(--c-primary-900);letter-spacing:.2px;}
.main-nav{display:flex;align-items:center;gap:26px;}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--c-text-2);
  padding:6px 0;
}
.nav-link::after{
  content:"";
  position:absolute;left:50%;bottom:0;
  width:0;height:2px;background:var(--c-primary);
  transition:width .25s ease,left .25s ease;
}
.nav-link:hover{color:var(--c-primary);}
.nav-link:hover::after{width:100%;left:0;}
.nav-link.active{color:var(--c-primary);font-weight:600;}
.nav-link.active::after{width:26px;left:0;}
.header-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;border:1px solid var(--c-line);border-radius:10px;
  background:#fff;cursor:pointer;padding:0;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--c-primary-900);border-radius:2px;transition:.25s;}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;
  width:84%;max-width:340px;
  background:#fff;z-index:90;
  transform:translateX(105%);
  transition:transform .3s cubic-bezier(.2,.7,.3,1);
  display:flex;flex-direction:column;
  box-shadow:var(--sh-lg);
}
.nav-drawer.open{transform:translateX(0);}
.drawer-head{padding:20px 22px;border-bottom:1px solid var(--c-line);font-weight:700;color:var(--c-primary-900);}
.drawer-nav{flex:1;overflow-y:auto;padding:12px 8px;}
.drawer-nav a{
  display:block;padding:14px 16px;border-radius:10px;
  color:var(--c-text);font-size:16px;
}
.drawer-nav a:hover,.drawer-nav a.active{background:var(--c-primary-100);color:var(--c-primary-700);}
.drawer-foot{padding:16px 18px;border-top:1px solid var(--c-line);display:flex;gap:10px;}
.drawer-foot .btn{flex:1;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,44,85,.42);
  opacity:0;visibility:hidden;transition:.3s;z-index:80;
}
.drawer-mask.show{opacity:1;visibility:visible;}

/* ---------- 面包屑 ---------- */
.breadcrumb-bar{background:#fff;border-bottom:1px solid var(--c-line);}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:14px 0;font-size:13px;color:var(--c-text-3);
}
.breadcrumb a{color:var(--c-text-2);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:#C3CCDA;}
.breadcrumb .current{color:var(--c-text);font-weight:600;max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章头部 ---------- */
.article-hero{
  background:linear-gradient(180deg,#FFFFFF 0%,#F0F6FE 100%);
  border-bottom:1px solid var(--c-line);
  padding:48px 0 40px;
  position:relative;
  overflow:hidden;
}
.article-hero::after{
  content:"";
  position:absolute;right:-60px;top:-40px;width:320px;height:320px;
  background:radial-gradient(circle,#1667C9 1.1px,transparent 1.1px);
  background-size:16px 16px;opacity:.07;pointer-events:none;
}
.article-hero-inner{max-width:860px;position:relative;z-index:1;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:999px;
  background:var(--c-primary-100);color:var(--c-primary-700);
  font-size:13px;font-weight:600;
}
.article-title{
  font-size:clamp(28px,4vw,44px);
  line-height:1.28;
  font-weight:700;
  color:var(--c-primary-900);
  letter-spacing:.2px;
  margin:16px 0 18px;
}
.article-lead{
  font-size:16px;
  color:var(--c-text-2);
  line-height:1.8;
  max-width:42em;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  margin-top:22px;font-size:14px;color:var(--c-text-3);
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:7px;}
.article-meta i{color:var(--c-primary-500);}
.share-row{display:flex;align-items:center;gap:10px;margin-top:24px;}
.share-row .share-label{font-size:13px;color:var(--c-text-3);}
.icon-btn{
  width:38px;height:38px;border-radius:10px;
  border:1px solid var(--c-line);background:#fff;color:var(--c-text-2);
  display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:.25s;
}
.icon-btn:hover{border-color:var(--c-primary-500);color:var(--c-primary);transform:translateY(-2px);box-shadow:var(--sh-sm);}

/* ---------- 文章布局 ---------- */
.article-wrap{padding:56px 0 72px;}
.article-layout{align-items:flex-start;}
.article-cover{
  border-radius:var(--r-img);
  overflow:hidden;
  margin-bottom:32px;
  box-shadow:var(--sh-md);
  aspect-ratio:16/9;
  background:#E9EFF8;
}
.article-cover img{width:100%;height:100%;object-fit:cover;}

.article-body{font-size:16px;line-height:1.8;color:var(--c-text);}
.article-body > *{max-width:42em;}
.article-body p{margin:0 0 20px;}
.article-body h2{
  font-size:24px;line-height:1.4;font-weight:600;color:var(--c-primary-900);
  margin:44px 0 16px;padding-left:14px;border-left:4px solid var(--c-primary);
}
.article-body h3{
  font-size:19px;line-height:1.5;font-weight:600;color:var(--c-primary-900);
  margin:30px 0 12px;
}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:1.25em;}
.article-body li{margin-bottom:9px;}
.article-body li::marker{color:var(--c-primary-500);}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
.article-body strong{color:var(--c-primary-900);font-weight:600;}
.article-body blockquote{
  background:var(--c-primary-100);
  border-left:4px solid var(--c-primary);
  border-radius:0 12px 12px 0;
  padding:18px 22px;margin:24px 0;color:var(--c-primary-900);
  font-size:15px;line-height:1.8;
}
.article-body img{border-radius:var(--r-img);margin:24px 0;box-shadow:var(--sh-sm);height:auto;}
.article-body figure{margin:26px 0;}
.article-body figcaption{font-size:13px;color:var(--c-text-3);text-align:center;margin-top:10px;}
.article-body table{
  width:100%;border-collapse:collapse;font-size:15px;
  margin:24px 0;display:block;overflow-x:auto;white-space:nowrap;
}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:11px 14px;text-align:left;}
.article-body thead th{background:var(--c-primary-100);color:var(--c-primary-900);font-weight:600;}
.article-body tbody tr:nth-child(even){background:#FAFCFF;}
.article-body hr{border:0;border-top:1px dashed var(--c-line);margin:34px 0;}
.article-body .inline-cta{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  background:linear-gradient(120deg,#0B2C55,#124A8C);
  color:#fff;border-radius:var(--r-block);
  padding:26px 28px;margin:34px 0;max-width:none;
}
.article-body .inline-cta h4{font-size:18px;font-weight:600;margin-bottom:6px;color:#fff;}
.article-body .inline-cta p{font-size:14px;color:rgba(255,255,255,.82);margin:0;max-width:32em;}

.content-empty{
  background:#fff;border:1px dashed #C9D7EA;border-radius:var(--r-card);
  padding:44px 32px;text-align:center;
}
.content-empty h2{font-size:22px;margin-bottom:10px;color:var(--c-primary-900);}
.content-empty p{color:var(--c-text-2);font-size:15px;margin-bottom:20px;}

/* ---------- 侧栏 ---------- */
.side-stack{display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-sm);overflow:hidden;
}
.side-card-head{
  padding:16px 20px;border-bottom:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:space-between;
}
.side-card-head h3{font-size:16px;font-weight:600;color:var(--c-primary-900);}
.side-card-head span{font-size:12px;color:var(--c-text-3);}
.side-list{list-style:none;margin:0;padding:6px 0;}
.side-list li{border-bottom:1px dashed var(--c-line);}
.side-list li:last-child{border-bottom:0;}
.side-list a{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 20px;color:var(--c-text);
}
.side-list a:hover{background:var(--c-bg);color:var(--c-primary);}
.side-num{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:13px;font-weight:700;color:var(--c-primary-500);flex:0 0 22px;line-height:1.6;
}
.side-list .t{font-size:15px;line-height:1.55;}
.side-card-body{padding:20px;}
.side-card-body p{font-size:14px;color:var(--c-text-2);line-height:1.75;margin-bottom:16px;}
.side-facts{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px;}
.side-facts li{display:flex;justify-content:space-between;gap:12px;font-size:14px;color:var(--c-text-2);}
.side-facts b{font-family:var(--font-num);font-variant-numeric:tabular-nums;color:var(--c-primary-900);}

/* ---------- 文末 ---------- */
.article-foot{margin-top:44px;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px;}
.tag{
  display:inline-flex;align-items:center;
  padding:6px 14px;border-radius:999px;
  background:#fff;border:1px solid var(--c-line);
  font-size:13px;color:var(--c-text-2);
  transition:.2s;
}
.tag:hover{border-color:var(--c-primary-500);color:var(--c-primary);background:var(--c-primary-100);}
.prev-next{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:36px;}
.pn-item{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:18px 20px;transition:.25s cubic-bezier(.2,.7,.3,1);
}
.pn-item:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);border-color:#CFE0F5;}
.pn-item span{display:block;font-size:13px;color:var(--c-text-3);margin-bottom:6px;}
.pn-item strong{font-size:16px;font-weight:600;color:var(--c-primary-900);line-height:1.5;}

.related-block{margin-top:8px;}
.block-head{margin-bottom:26px;}
.block-head h2{
  font-size:26px;font-weight:600;color:var(--c-primary-900);letter-spacing:.2px;
}
.block-head p{margin-top:8px;font-size:15px;color:var(--c-text-2);}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.rel-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:.25s cubic-bezier(.2,.7,.3,1);
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);border-color:#CFE0F5;}
.rel-thumb{aspect-ratio:16/10;overflow:hidden;background:#E9EFF8;}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.rel-card:hover .rel-thumb img{transform:scale(1.06);}
.rel-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rel-body h3{font-size:17px;font-weight:600;color:var(--c-primary-900);line-height:1.5;}
.rel-body p{font-size:14px;color:var(--c-text-2);line-height:1.7;flex:1;}
.rel-more{font-size:14px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;}

/* ---------- 深色 CTA ---------- */
.cta-section{padding:0 0 88px;}
.cta-panel{
  background:linear-gradient(120deg,#0B2C55 0%,#124A8C 68%,#1667C9 100%);
  border-radius:var(--r-block);
  padding:56px;
  display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-panel::after{
  content:"";position:absolute;right:-80px;bottom:-80px;
  width:340px;height:340px;border-radius:50%;
  border:1px solid rgba(255,255,255,.16);pointer-events:none;
}
.cta-copy h2{font-size:28px;font-weight:600;color:#fff;line-height:1.4;margin-bottom:14px;}
.cta-copy p{font-size:15px;color:rgba(255,255,255,.8);line-height:1.8;margin-bottom:18px;max-width:34em;}
.cta-points{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;}
.cta-points li{display:flex;align-items:center;gap:9px;font-size:14px;color:rgba(255,255,255,.88);}
.cta-points i{color:#7FD8B6;}
.cta-form{
  background:rgba(255,255,255,.98);
  border-radius:var(--r-card);
  padding:24px;position:relative;z-index:1;
}
.cta-form label{display:block;font-size:13px;color:var(--c-text-2);margin-bottom:6px;font-weight:500;}
.field{margin-bottom:14px;}
.field input,.field textarea{
  width:100%;height:48px;padding:0 14px;
  border:1px solid #DCE4EF;border-radius:10px;
  font-size:15px;color:var(--c-text);background:#fff;
  transition:.2s;font-family:inherit;
}
.field textarea{height:88px;padding:12px 14px;resize:vertical;line-height:1.6;}
.field input:focus,.field textarea:focus{
  border-color:var(--c-primary);outline:none;
  box-shadow:0 0 0 3px rgba(22,103,201,.12);
}
.form-note{font-size:12px;color:var(--c-text-3);margin-top:10px;line-height:1.6;}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;border-top:1px solid var(--c-line);}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding:64px 0 48px;
}
.footer-col h4{
  font-size:15px;font-weight:600;color:var(--c-primary-900);
  margin-bottom:18px;position:relative;padding-bottom:10px;
}
.footer-col h4::after{
  content:"";position:absolute;left:0;bottom:0;width:22px;height:2px;background:var(--c-primary);
}
.footer-brand .brand{margin-bottom:16px;}
.footer-desc{font-size:14px;color:var(--c-text-2);line-height:1.8;max-width:34em;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:var(--c-text-2);transition:.2s;display:inline-block;}
.footer-links a:hover{color:var(--c-primary);transform:translateX(2px);}
.footer-contact{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px;}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--c-text-2);line-height:1.6;}
.footer-contact i{color:var(--c-primary-500);margin-top:4px;}
.footer-bottom{background:var(--c-primary-900);color:rgba(255,255,255,.78);font-size:12.5px;}
.footer-bottom .container{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;padding-top:16px;padding-bottom:16px;
}

/* ---------- 回到顶部 ---------- */
.back-top{
  position:fixed;right:24px;bottom:28px;
  width:44px;height:44px;border-radius:50%;
  background:#fff;border:1px solid var(--c-line);
  color:var(--c-primary);box-shadow:var(--sh-md);
  display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;opacity:0;visibility:hidden;transform:translateY(8px);
  transition:.28s;z-index:50;
}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.back-top:hover{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .main-nav{display:none;}
  .header-actions .btn-outline{display:none;}
  .nav-toggle{display:flex;}
  .article-side{margin-top:32px;}
  .side-stack{position:static;}
  .cta-panel{grid-template-columns:1fr;padding:40px 30px;gap:30px;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 36px;}
  .article-wrap{padding:40px 0 56px;}
}
@media (max-width:639px){
  .container{padding:0 16px;}
  .header-inner{height:64px;}
  .brand-text{font-size:17px;}
  .article-hero{padding:34px 0 30px;}
  .article-meta{gap:8px 16px;font-size:13px;}
  .related-grid{grid-template-columns:1fr;}
  .prev-next{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .cta-section{padding-bottom:60px;}
  .cta-panel{padding:30px 22px;border-radius:16px;}
  .cta-form{padding:20px;}
  .block-head h2{font-size:22px;}
  .back-top{right:16px;bottom:18px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
  --c-primary-900:#0B2C55;
  --c-primary-700:#124A8C;
  --c-primary:#1667C9;
  --c-primary-500:#3B86DE;
  --c-primary-100:#E6EFFB;
  --c-bg:#F5F8FC;
  --c-surface:#FFFFFF;
  --c-accent:#FF7A1A;
  --c-accent-100:#FFF0E3;
  --c-ok:#12A67A;
  --c-text:#16202E;
  --c-text-2:#5B6879;
  --c-text-3:#8A96A6;
  --c-line:#E4EAF3;

  --r-btn:10px;
  --r-card:16px;
  --r-block:20px;
  --r-img:16px;
  --r-pill:999px;

  --sh-sm:0 1px 2px rgba(16,42,80,.06), 0 2px 8px rgba(16,42,80,.05);
  --sh-md:0 6px 20px rgba(16,42,80,.08);
  --sh-lg:0 16px 40px rgba(16,42,80,.10);

  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px;
  --sp-5:24px; --sp-6:32px; --sp-7:48px; --sp-8:64px;
  --sp-9:88px; --sp-10:120px;

  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,Arial,sans-serif;
  --font-num:"DIN Alternate","Bahnschrift",ui-monospace,SFMono-Regular,Menlo,monospace;
  --ease:cubic-bezier(.2,.7,.3,1);
}

*,
*::before,
*::after{ box-sizing:border-box; }

html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }

body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img{ max-width:100%; display:block; border:0; }
a{ color:var(--c-primary); text-decoration:none; transition:color .2s var(--ease); }
a:hover{ color:var(--c-primary-700); }
ul,ol{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4,p{ margin:0; }
button{ font-family:inherit; }
input,textarea,select{ font-family:inherit; font-size:15px; }
:focus-visible{ outline:2px solid var(--c-primary); outline-offset:2px; border-radius:4px; }

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 var(--sp-5);
}

.section{ padding:var(--sp-9) 0; }
.section-tight{ padding:var(--sp-8) 0; }

.section-head{ max-width:720px; margin-bottom:var(--sp-6); }
.section-head .eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:.06em;
  color:var(--c-primary);
  background:var(--c-primary-100);
  border-radius:var(--r-pill);
  padding:5px 14px;
  margin-bottom:var(--sp-4);
  font-weight:600;
}
.section-head h2{
  font-size:28px;
  line-height:1.35;
  font-weight:600;
  letter-spacing:.2px;
  color:var(--c-primary-900);
}
.section-head p{
  margin-top:var(--sp-3);
  color:var(--c-text-2);
  font-size:15px;
}

/* ============ 按钮系统 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  letter-spacing:.02em;
  cursor:pointer;
  white-space:nowrap;
  transition:background-color .22s var(--ease), color .22s var(--ease), border-color .22s var(--ease), transform .22s var(--ease), box-shadow .22s var(--ease);
}
.btn:active{ transform:translateY(0); }
.btn-lg{ height:52px; padding:0 28px; font-size:16px; }
.btn-md{ height:48px; }
.btn-sm{ height:40px; padding:0 18px; font-size:14px; }

.btn-accent{
  background:var(--c-accent);
  color:#fff;
  box-shadow:0 6px 16px rgba(255,122,26,.24);
}
.btn-accent:hover{
  background:#EF6C0B;
  color:#fff;
  transform:translateY(-1px);
  box-shadow:0 10px 22px rgba(255,122,26,.28);
}

.btn-outline{
  background:transparent;
  border-color:var(--c-primary);
  color:var(--c-primary);
}
.btn-outline:hover{
  background:var(--c-primary-100);
  color:var(--c-primary-700);
  transform:translateY(-1px);
}

.btn-ghost{
  background:#fff;
  border-color:var(--c-line);
  color:var(--c-text-2);
}
.btn-ghost:hover{
  border-color:var(--c-primary);
  color:var(--c-primary);
  background:#fff;
}

.btn-dark-outline{
  background:transparent;
  border-color:rgba(255,255,255,.5);
  color:#fff;
}
.btn-dark-outline:hover{
  background:rgba(255,255,255,.12);
  border-color:#fff;
  color:#fff;
}

.btn-block{ width:100%; }

.btn-note{
  font-size:12px;
  color:var(--c-text-3);
  margin-top:var(--sp-2);
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{ box-shadow:var(--sh-sm); }

.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:var(--sp-5);
  height:76px;
  transition:height .25s var(--ease);
}
.site-header.is-scrolled .header-inner{ height:64px; }

.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:38px;
  height:38px;
  border-radius:12px;
  background:linear-gradient(135deg,var(--c-primary) 0%,var(--c-primary-900) 100%);
  color:#fff;
  font-size:18px;
  font-weight:700;
  display:grid;
  place-items:center;
  box-shadow:var(--sh-sm);
}
.brand-text{
  font-size:20px;
  font-weight:700;
  letter-spacing:.4px;
  color:var(--c-primary-900);
}

.main-nav{
  display:flex;
  align-items:center;
  gap:26px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--c-text-2);
  padding:6px 0;
  font-weight:500;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:0;
  width:0;
  height:2px;
  background:var(--c-primary);
  border-radius:2px;
  transform:translateX(-50%);
  transition:width .25s var(--ease);
}
.nav-link:hover{ color:var(--c-primary); }
.nav-link:hover::after{ width:100%; }
.nav-link.active{ color:var(--c-primary); font-weight:600; }
.nav-link.active::after{ width:22px; }

.header-actions{
  display:flex;
  align-items:center;
  gap:var(--sp-3);
  flex-shrink:0;
}

.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
  background:#fff;
  cursor:pointer;
  padding:0;
  place-items:center;
}
.nav-toggle span{
  display:block;
  width:20px;
  height:2px;
  background:var(--c-primary-900);
  border-radius:2px;
  margin:3px auto;
  transition:transform .25s var(--ease), opacity .25s var(--ease);
}
.nav-toggle.is-open span:nth-child(1){ transform:translateY(5px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2){ opacity:0; }
.nav-toggle.is-open span:nth-child(3){ transform:translateY(-5px) rotate(-45deg); }

.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(11,44,85,.42);
  opacity:0;
  visibility:hidden;
  transition:opacity .25s var(--ease), visibility .25s var(--ease);
  z-index:70;
}
.drawer-mask.is-open{ opacity:1; visibility:visible; }

.mobile-drawer{
  position:fixed;
  top:0;
  right:0;
  height:100%;
  width:84%;
  max-width:340px;
  background:#fff;
  z-index:80;
  transform:translateX(100%);
  transition:transform .3s var(--ease);
  display:flex;
  flex-direction:column;
  padding:var(--sp-5);
  box-shadow:var(--sh-lg);
}
.mobile-drawer.is-open{ transform:translateX(0); }
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-bottom:var(--sp-4);
  border-bottom:1px solid var(--c-line);
  margin-bottom:var(--sp-4);
}
.drawer-title{ font-size:16px; font-weight:700; color:var(--c-primary-900); }
.drawer-close{
  width:40px; height:40px; border:1px solid var(--c-line); background:#fff;
  border-radius:var(--r-btn); cursor:pointer; color:var(--c-text-2); font-size:16px;
}
.drawer-nav{ display:flex; flex-direction:column; gap:2px; }
.drawer-nav a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 12px;
  border-radius:var(--r-btn);
  font-size:16px;
  color:var(--c-text);
  font-weight:500;
}
.drawer-nav a:hover{ background:var(--c-primary-100); color:var(--c-primary); }
.drawer-nav a.active{ background:var(--c-primary-100); color:var(--c-primary); font-weight:600; }
.drawer-nav a i{ font-size:12px; color:var(--c-text-3); }
.drawer-foot{
  margin-top:auto;
  padding-top:var(--sp-4);
  border-top:1px solid var(--c-line);
  display:flex;
  flex-direction:column;
  gap:10px;
}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--c-text-3);
  padding-top:var(--sp-5);
}
.breadcrumb a{ color:var(--c-text-3); }
.breadcrumb a:hover{ color:var(--c-primary); }
.breadcrumb .sep{ color:#C3CDDB; }
.breadcrumb .current{ color:var(--c-text-2); }

/* ============ Hero ============ */
.hero{
  position:relative;
  overflow:hidden;
  background-color:#fff;
  background-image:linear-gradient(160deg, #FFFFFF 0%, #F0F6FE 62%, #E6EFFB 100%);
  border-bottom:1px solid var(--c-line);
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center right;
  opacity:.14;
  pointer-events:none;
}
.hero::after{
  content:"";
  position:absolute;
  right:-120px;
  top:-120px;
  width:420px;
  height:420px;
  border-radius:50%;
  border:1px dashed rgba(22,103,201,.22);
  opacity:.8;
  pointer-events:none;
}
.hero-inner{
  position:relative;
  z-index:2;
  padding:var(--sp-7) 0 var(--sp-8);
}
.hero-grid{ align-items:center; }
.hero h1{
  font-size:clamp(28px,4vw,46px);
  line-height:1.25;
  font-weight:700;
  letter-spacing:.2px;
  color:var(--c-primary-900);
  margin-top:var(--sp-4);
}
.hero h1 .hl{
  color:var(--c-primary);
}
.hero-sub{
  margin-top:var(--sp-4);
  max-width:640px;
  font-size:16px;
  line-height:1.75;
  color:var(--c-text-2);
}
.hero-actions{
  margin-top:var(--sp-6);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:var(--sp-4);
}
.hero-facts{
  margin-top:var(--sp-7);
  display:flex;
  flex-wrap:wrap;
  gap:var(--sp-6);
}
.hero-fact{
  padding-left:var(--sp-4);
  border-left:2px solid var(--c-primary-100);
}
.hero-fact .k{
  display:block;
  font-size:13px;
  color:var(--c-text-3);
  margin-bottom:2px;
}
.hero-fact .v{
  font-size:16px;
  font-weight:600;
  color:var(--c-text);
}
.hero-media{ position:relative; }
.hero-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--r-block);
  box-shadow:var(--sh-lg);
}
.hero-badge{
  position:absolute;
  left:-14px;
  bottom:24px;
  background:#fff;
  border-radius:14px;
  box-shadow:var(--sh-md);
  padding:12px 18px;
  display:flex;
  align-items:center;
  gap:10px;
}
.hero-badge i{ color:var(--c-ok); font-size:15px; }
.hero-badge span{ font-size:13px; font-weight:600; color:var(--c-primary-900); }

/* ============ 分类 chips ============ */
.chips-bar{
  position:relative;
  z-index:2;
  background:#fff;
  border-bottom:1px solid var(--c-line);
}
.chips{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  padding:var(--sp-4) 0;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 18px;
  border-radius:var(--r-pill);
  background:var(--c-primary-100);
  color:var(--c-primary-700);
  font-size:14px;
  font-weight:600;
  border:1px solid transparent;
  transition:all .22s var(--ease);
}
.chip:hover{
  background:var(--c-primary);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:var(--sh-sm);
}
.chip.is-current{
  background:var(--c-primary);
  color:#fff;
}
.chip i{ font-size:12px; }

/* ============ 步骤时间线 ============ */
.timeline-layout{ margin-left:-16px; margin-right:-16px; }
.timeline-layout > .cell{ padding-left:16px; padding-right:16px; }

.timeline{
  position:relative;
  padding-left:6px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:23px;
  top:12px;
  bottom:40px;
  width:2px;
  background:linear-gradient(180deg,var(--c-primary-100),var(--c-primary-500),var(--c-primary-100));
  border-radius:2px;
}
.step{
  position:relative;
  display:flex;
  gap:var(--sp-5);
  padding-bottom:var(--sp-6);
}
.step:last-child{ padding-bottom:0; }
.step-num{
  position:relative;
  z-index:1;
  flex:0 0 46px;
  width:46px;
  height:46px;
  border-radius:50%;
  background:#fff;
  border:2px solid var(--c-primary-100);
  color:var(--c-primary);
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:15px;
  font-weight:700;
  display:grid;
  place-items:center;
  box-shadow:var(--sh-sm);
}
.step-card{
  flex:1 1 auto;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:var(--sp-5);
  box-shadow:var(--sh-sm);
  transition:transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
}
.step-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--sh-lg);
  border-color:#D5E3F7;
}
.step-card h3{
  font-size:20px;
  line-height:1.45;
  font-weight:600;
  color:var(--c-primary-900);
  letter-spacing:.2px;
}
.step-card p{
  margin-top:10px;
  font-size:15px;
  color:var(--c-text-2);
}
.step-tip{
  margin-top:var(--sp-4);
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  color:var(--c-primary-700);
  background:var(--c-primary-100);
  border-radius:var(--r-pill);
  padding:6px 14px;
}
.step-tip i{ font-size:12px; }

/* ============ 右侧快速入口卡 ============ */
.quick-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:var(--sp-5);
  box-shadow:var(--sh-md);
}
.quick-card h3{
  font-size:17px;
  font-weight:700;
  color:var(--c-primary-900);
  padding-bottom:var(--sp-3);
  border-bottom:1px solid var(--c-line);
  margin-bottom:var(--sp-4);
}
.quick-list{ display:flex; flex-direction:column; gap:2px; }
.quick-list a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:12px;
  border-radius:var(--r-btn);
  font-size:15px;
  color:var(--c-text);
  font-weight:500;
}
.quick-list a:hover{ background:var(--c-bg); color:var(--c-primary); }
.quick-list a i{ color:var(--c-text-3); font-size:12px; }
.quick-list a.active{ background:var(--c-primary-100); color:var(--c-primary); font-weight:600; }
.quick-divider{ height:1px; background:var(--c-line); margin:var(--sp-4) 0; }
.quick-help{
  font-size:13px;
  color:var(--c-text-3);
  line-height:1.7;
  margin-bottom:var(--sp-4);
}
.sticky-col{
  position:sticky;
  top:100px;
}

/* ============ 准备清单 ============ */
.prep-layout{ align-items:center; }
.prep-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--r-block);
  box-shadow:var(--sh-md);
}
.prep-list{ display:flex; flex-direction:column; gap:var(--sp-4); }
.prep-item{
  display:flex;
  gap:var(--sp-4);
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:var(--sp-5);
  box-shadow:var(--sh-sm);
  transition:transform .25s var(--ease), box-shadow .25s var(--ease);
}
.prep-item:hover{ transform:translateY(-4px); box-shadow:var(--sh-lg); }
.prep-ico{
  flex:0 0 44px;
  width:44px;
  height:44px;
  border-radius:12px;
  background:var(--c-primary-100);
  color:var(--c-primary);
  display:grid;
  place-items:center;
  font-size:17px;
}
.prep-item h3{
  font-size:17px;
  font-weight:600;
  color:var(--c-primary-900);
  line-height:1.5;
}
.prep-item p{ font-size:14px; color:var(--c-text-2); margin-top:4px; }

/* ============ 设备对照表 ============ */
.table-wrap{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-sm);
  overflow-x:auto;
}
table.device-table{
  width:100%;
  border-collapse:collapse;
  min-width:640px;
  font-size:15px;
}
table.device-table thead th{
  background:var(--c-primary-100);
  color:var(--c-primary-900);
  font-weight:600;
  font-size:14px;
  text-align:left;
  padding:16px 20px;
  white-space:nowrap;
}
table.device-table tbody td{
  padding:18px 20px;
  border-top:1px solid var(--c-line);
  color:var(--c-text-2);
  vertical-align:top;
  line-height:1.7;
}
table.device-table tbody tr:nth-child(even){ background:#FAFCFF; }
table.device-table tbody td:first-child{
  color:var(--c-primary-900);
  font-weight:600;
  white-space:nowrap;
}
.table-note{
  margin-top:var(--sp-3);
  font-size:13px;
  color:var(--c-text-3);
}

/* ============ 自检卡片 ============ */
.check-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:var(--sp-5);
}
.check-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:var(--sp-5);
  box-shadow:var(--sh-sm);
  transition:transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
}
.check-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--sh-lg);
  border-color:#D5E3F7;
}
.check-card .tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  font-weight:600;
  color:var(--c-primary-700);
  background:var(--c-primary-100);
  border-radius:var(--r-pill);
  padding:4px 12px;
  margin-bottom:var(--sp-4);
}
.check-card h3{
  font-size:17px;
  font-weight:600;
  line-height:1.5;
  color:var(--c-primary-900);
}
.check-card p{
  margin-top:10px;
  font-size:14px;
  color:var(--c-text-2);
}

/* ============ FAQ ============ */
.faq-layout{ margin-left:-16px; margin-right:-16px; }
.faq-layout > .cell{ padding-left:16px; padding-right:16px; }
.faq-aside{ position:sticky; top:100px; }
.faq-aside h2{
  font-size:28px;
  line-height:1.35;
  font-weight:600;
  color:var(--c-primary-900);
  letter-spacing:.2px;
}
.faq-aside p{
  margin-top:var(--sp-3);
  font-size:15px;
  color:var(--c-text-2);
}
.faq-aside .aside-box{
  margin-top:var(--sp-5);
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:var(--sp-5);
  box-shadow:var(--sh-sm);
}
.faq-aside .aside-box span{
  display:block;
  font-size:13px;
  color:var(--c-text-3);
  margin-bottom:var(--sp-3);
}

.faq-list{ display:flex; flex-direction:column; gap:12px; }
.faq-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:12px;
  overflow:hidden;
  transition:box-shadow .25s var(--ease), border-color .25s var(--ease);
}
.faq-item.is-open{ box-shadow:var(--sh-md); border-color:#D5E3F7; }
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:var(--sp-4);
  padding:18px 20px;
  background:transparent;
  border:0;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--c-primary-900);
  cursor:pointer;
  position:relative;
}
.faq-q::before{
  content:"";
  position:absolute;
  left:0;
  top:12px;
  bottom:12px;
  width:3px;
  background:var(--c-primary);
  border-radius:0 3px 3px 0;
  opacity:0;
  transition:opacity .25s var(--ease);
}
.faq-item.is-open .faq-q::before{ opacity:1; }
.faq-q:hover{ color:var(--c-primary); }
.faq-q .ic{
  flex:0 0 28px;
  width:28px;
  height:28px;
  border-radius:50%;
  background:var(--c-primary-100);
  color:var(--c-primary);
  display:grid;
  place-items:center;
  font-size:13px;
  transition:transform .25s var(--ease), background .25s var(--ease), color .25s var(--ease);
}
.faq-item.is-open .faq-q .ic{
  background:var(--c-primary);
  color:#fff;
  transform:rotate(180deg);
}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s var(--ease);
}
.faq-a-inner{
  padding:0 20px 20px 20px;
  font-size:15px;
  line-height:1.8;
  color:var(--c-text-2);
}

/* ============ CTA ============ */
.cta-block{
  position:relative;
  overflow:hidden;
  background:var(--c-primary-900);
  border-radius:var(--r-block);
  padding:56px;
  color:#fff;
  margin-bottom:var(--sp-9);
}
.cta-block::before{
  content:"";
  position:absolute;
  right:-80px;
  bottom:-120px;
  width:360px;
  height:360px;
  border-radius:50%;
  border:1px dashed rgba(255,255,255,.18);
}
.cta-block::after{
  content:"";
  position:absolute;
  left:-60px;
  top:-60px;
  width:260px;
  height:260px;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px, transparent 1px);
  background-size:16px 16px;
  opacity:.7;
}
.cta-grid{
  position:relative;
  z-index:2;
  align-items:flex-start;
}
.cta-copy .eyebrow-dark{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  color:#FFD9B8;
  background:rgba(255,122,26,.18);
  border-radius:var(--r-pill);
  padding:5px 14px;
  margin-bottom:var(--sp-4);
}
.cta-copy h2{
  font-size:28px;
  line-height:1.35;
  font-weight:600;
  letter-spacing:.2px;
}
.cta-copy p{
  margin-top:var(--sp-4);
  font-size:15px;
  line-height:1.8;
  color:rgba(255,255,255,.78);
  max-width:520px;
}
.cta-points{
  margin-top:var(--sp-5);
  display:flex;
  flex-direction:column;
  gap:12px;
}
.cta-points li{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:14px;
  color:rgba(255,255,255,.85);
}
.cta-points i{ color:#7FD3B4; font-size:13px; }

.cta-form{
  background:#fff;
  border-radius:var(--r-card);
  padding:var(--sp-5);
  box-shadow:var(--sh-lg);
}
.cta-form .field{ margin-bottom:var(--sp-4); }
.cta-form label{
  display:block;
  font-size:13px;
  font-weight:600;
  color:var(--c-text-2);
  margin-bottom:6px;
}
.cta-form input,
.cta-form textarea{
  width:100%;
  height:48px;
  border:1px solid #DCE4EF;
  border-radius:var(--r-btn);
  padding:0 14px;
  color:var(--c-text);
  background:#fff;
  transition:border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.cta-form textarea{
  height:104px;
  padding:12px 14px;
  resize:vertical;
  line-height:1.7;
}
.cta-form input::placeholder,
.cta-form textarea::placeholder{ color:#A9B4C4; }
.cta-form input:focus,
.cta-form textarea:focus{
  outline:none;
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(22,103,201,.12);
}
.cta-form .legal{
  margin-top:var(--sp-3);
  font-size:12px;
  color:var(--c-text-3);
  line-height:1.6;
}
.form-msg{
  display:none;
  margin-top:var(--sp-3);
  font-size:13px;
  font-weight:600;
  color:var(--c-ok);
}
.form-msg.is-show{ display:block; }

/* ============ 页脚 ============ */
.site-footer{
  background:#fff;
  border-top:1px solid var(--c-line);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:var(--sp-6);
  padding:var(--sp-8) 0 var(--sp-7);
}
.footer-brand .brand{ margin-bottom:var(--sp-4); }
.footer-desc{
  font-size:14px;
  line-height:1.8;
  color:var(--c-text-2);
  max-width:340px;
}
.footer-col h4{
  position:relative;
  font-size:15px;
  font-weight:600;
  color:var(--c-primary-900);
  margin-bottom:var(--sp-4);
  padding-bottom:10px;
}
.footer-col h4::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:22px;
  height:2px;
  background:var(--c-primary);
  border-radius:2px;
}
.footer-links{ display:flex; flex-direction:column; gap:12px; }
.footer-links a{
  font-size:14px;
  color:var(--c-text-2);
  transition:color .2s var(--ease), transform .2s var(--ease);
}
.footer-links a:hover{ color:var(--c-primary); transform:translateX(2px); }
.footer-contact{ display:flex; flex-direction:column; gap:12px; }
.footer-contact li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:14px;
  color:var(--c-text-2);
  line-height:1.7;
}
.footer-contact i{ color:var(--c-primary); font-size:14px; margin-top:4px; }
.footer-bottom{
  background:var(--c-primary-900);
  color:rgba(255,255,255,.82);
}
.footer-bottom .container{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding-top:var(--sp-4);
  padding-bottom:var(--sp-4);
  font-size:13px;
}

/* ============ 回到顶部 ============ */
.to-top{
  position:fixed;
  right:24px;
  bottom:24px;
  width:44px;
  height:44px;
  border-radius:50%;
  border:1px solid var(--c-line);
  background:#fff;
  color:var(--c-primary);
  box-shadow:var(--sh-md);
  cursor:pointer;
  display:grid;
  place-items:center;
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity .25s var(--ease), transform .25s var(--ease), visibility .25s var(--ease);
  z-index:55;
}
.to-top.is-show{ opacity:1; visibility:visible; transform:translateY(0); }
.to-top:hover{ background:var(--c-primary); color:#fff; }

/* ============ 响应式 ============ */
@media screen and (max-width:1023px){
  .main-nav{ display:none; }
  .header-actions{ display:none; }
  .nav-toggle{ display:grid; }
  .section{ padding:var(--sp-8) 0; }
  .check-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); }
  .faq-aside{ position:static; margin-bottom:var(--sp-6); }
  .sticky-col{ position:static; }
  .cta-block{ padding:40px; }
  .footer-grid{ grid-template-columns:1fr 1fr; }
  .hero::after{ display:none; }
}

@media screen and (max-width:767px){
  .container{ padding:0 16px; }
  .brand-text{ font-size:18px; }
  .hero-inner{ padding:var(--sp-6) 0 var(--sp-7); }
  .hero-media{ margin-top:var(--sp-6); }
  .hero-badge{ left:12px; bottom:12px; }
  .hero-facts{ gap:var(--sp-4); }
  .hero-fact{ flex:1 1 100%; padding-left:12px; }
  .cta-block{ padding:28px 20px; }
  .footer-grid{ grid-template-columns:1fr; gap:var(--sp-6); }
  .footer-bottom .container{ flex-direction:column; align-items:flex-start; }
  .timeline::before{ left:19px; }
  .step-num{ flex:0 0 38px; width:38px; height:38px; font-size:13px; }
  .step{ gap:var(--sp-4); }
  .section-head h2,
  .faq-aside h2,
  .cta-copy h2{ font-size:24px; }
}

@media screen and (max-width:519px){
  .check-grid{ grid-template-columns:1fr; }
  .chips{ gap:8px; }
  .chip{ padding:8px 14px; font-size:13px; }
}

@media (prefers-reduced-motion:reduce){
  *,
  *::before,
  *::after{
    animation:none !important;
    transition:none !important;
    scroll-behavior:auto !important;
  }
  .step-card:hover,
  .prep-item:hover,
  .check-card:hover,
  .btn:hover{ transform:none; }
}

/* roulang page: category2 */
:root{
  --c-primary-900:#0B2C55;
  --c-primary-700:#124A8C;
  --c-primary:#1667C9;
  --c-primary-500:#3B86DE;
  --c-primary-100:#E6EFFB;
  --c-bg:#F5F8FC;
  --c-surface:#FFFFFF;
  --c-accent:#FF7A1A;
  --c-accent-100:#FFF0E3;
  --c-ok:#12A67A;
  --c-text:#16202E;
  --c-text-2:#5B6879;
  --c-text-3:#8A96A6;
  --c-line:#E4EAF3;
  --r-btn:10px;
  --r-card:16px;
  --r-lg:20px;
  --r-img:14px;
  --sh-sm:0 1px 2px rgba(16,42,80,.06),0 2px 8px rgba(16,42,80,.05);
  --sh-md:0 6px 20px rgba(16,42,80,.08);
  --sh-lg:0 16px 40px rgba(16,42,80,.10);
  --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(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  -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;border-style:none;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--c-primary-700);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;background:none;border:none;padding:0;}

a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{
  outline:2px solid var(--c-primary);
  outline-offset:2px;
}

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

.section{padding:88px 0;}
.section-sm{padding:64px 0;}

.section-head{margin-bottom:40px;max-width:760px;}
.section-head h2{
  font-size:28px;
  line-height:1.35;
  font-weight:600;
  letter-spacing:.2px;
  color:var(--c-primary-900);
}
.section-head p{
  margin-top:12px;
  font-size:15px;
  color:var(--c-text-2);
  line-height:1.8;
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:28px;
  padding:0 12px;
  border-radius:999px;
  background:var(--c-primary-100);
  color:var(--c-primary-700);
  font-size:12px;
  font-weight:600;
  letter-spacing:.4px;
  margin-bottom:16px;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  letter-spacing:.2px;
  border:1px solid transparent;
  text-decoration:none;
  white-space:nowrap;
  transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 6px 16px rgba(255,122,26,.24);}
.btn-accent:hover{background:#E96A0C;color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(255,122,26,.32);}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-700);color:#fff;transform:translateY(-1px);}
.btn-ghost{background:#fff;border-color:#C9D9EE;color:var(--c-primary-700);}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-100);}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.5);color:#fff;}
.btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff;}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}
.btn-lg{height:52px;padding:0 28px;font-size:16px;}
.btn-block{width:100%;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(180%) blur(8px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-sm);}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:76px;
}
.site-header.is-scrolled .header-inner{height:64px;transition:height .25s var(--ease);}

.brand{display:inline-flex;align-items:center;gap:10px;flex:none;}
.brand-mark{
  width:38px;height:38px;
  border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--c-primary-700),var(--c-primary));
  color:#fff;font-size:18px;font-weight:700;
  box-shadow:0 4px 12px rgba(22,103,201,.28);
}
.brand-text{
  font-size:20px;
  font-weight:700;
  color:var(--c-primary-900);
  letter-spacing:.2px;
}

.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1;}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 12px;
  font-size:15px;
  color:var(--c-text-2);
  font-weight:500;
  border-radius:8px;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;bottom:2px;
  width:0;height:2px;
  background:var(--c-primary);
  border-radius:2px;
  transform:translateX(-50%);
  transition:width .25s var(--ease);
}
.nav-link:hover{color:var(--c-primary);}
.nav-link:hover::after{width:60%;}
.nav-link.active{color:var(--c-primary);font-weight:600;}
.nav-link.active::after{width:60%;}

.header-actions{display:flex;align-items:center;gap:12px;flex:none;}

.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:10px;
  border:1px solid var(--c-line);
  background:#fff;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.nav-toggle span{
  display:block;
  width:20px;height:2px;
  background:var(--c-primary-900);
  border-radius:2px;
  transition:transform .25s var(--ease),opacity .2s var(--ease);
}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;
  top:0;right:0;
  width:84%;
  max-width:340px;
  height:100%;
  background:#fff;
  z-index:80;
  display:flex;
  flex-direction:column;
  transform:translateX(102%);
  transition:transform .3s var(--ease);
  box-shadow:-12px 0 40px rgba(11,44,85,.18);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 20px;
  border-bottom:1px solid var(--c-line);
}
.drawer-close{
  width:40px;height:40px;border-radius:10px;
  border:1px solid var(--c-line);
  color:var(--c-text-2);
  display:inline-flex;align-items:center;justify-content:center;
}
.drawer-nav{padding:12px 12px 0;display:flex;flex-direction:column;gap:2px;flex:1;overflow-y:auto;}
.drawer-nav a{
  display:flex;align-items:center;
  min-height:48px;
  padding:0 14px;
  border-radius:10px;
  color:var(--c-text);
  font-size:16px;
}
.drawer-nav a.active{background:var(--c-primary-100);color:var(--c-primary-700);font-weight:600;}
.drawer-foot{
  padding:16px 20px 24px;
  border-top:1px solid var(--c-line);
  display:flex;flex-direction:column;gap:10px;
}
.drawer-mask{
  position:fixed;inset:0;
  background:rgba(11,44,85,.4);
  opacity:0;visibility:hidden;
  transition:opacity .3s var(--ease),visibility .3s var(--ease);
  z-index:70;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;
  color:var(--c-text-3);
  padding:20px 0 0;
}
.breadcrumb a{color:var(--c-text-3);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:#C4CEDC;}
.breadcrumb .current{color:var(--c-text-2);}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  background:
    radial-gradient(rgba(22,103,201,.10) 1px, transparent 1px) 0 0/22px 22px,
    linear-gradient(115deg,#FFFFFF 0%,#F0F6FE 62%,#E6EFFB 100%);
  border-bottom:1px solid var(--c-line);
  padding-bottom:72px;
}
.page-hero .container{position:relative;z-index:2;}
.hero-grid{padding-top:32px;align-items:center;}
.hero-copy h1{
  font-size:clamp(28px,4vw,46px);
  line-height:1.25;
  font-weight:700;
  letter-spacing:.2px;
  color:var(--c-primary-900);
}
.hero-sub{
  margin-top:18px;
  font-size:17px;
  line-height:1.8;
  color:var(--c-text-2);
  max-width:560px;
}
.hero-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:12px;align-items:center;}
.hero-note{margin-top:12px;font-size:13px;color:var(--c-text-3);}
.hero-facts{
  margin-top:32px;
  display:flex;flex-wrap:wrap;gap:0;
  border-top:1px solid var(--c-line);
  padding-top:20px;
}
.hero-fact{
  padding-right:32px;
  margin-right:32px;
  border-right:1px solid var(--c-line);
}
.hero-fact:last-child{border-right:none;margin-right:0;padding-right:0;}
.hero-fact .k{font-size:13px;color:var(--c-text-3);}
.hero-fact .v{font-size:16px;font-weight:600;color:var(--c-primary-900);margin-top:2px;}

.hero-visual{position:relative;}
.hero-visual .ratio{aspect-ratio:16/10;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-lg);}
.hero-visual img{width:100%;height:100%;object-fit:cover;}
.hero-badge{
  position:absolute;
  left:-16px;bottom:24px;
  background:#fff;
  border-radius:14px;
  padding:12px 18px;
  box-shadow:var(--sh-md);
  border:1px solid var(--c-line);
}
.hero-badge .b-t{font-size:12px;color:var(--c-text-3);}
.hero-badge .b-v{font-size:16px;font-weight:700;color:var(--c-primary-900);display:flex;align-items:center;gap:8px;}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--c-ok);display:inline-block;}

/* ---------- 分类 chips ---------- */
.chips{
  margin-top:36px;
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  height:40px;
  padding:0 16px;
  border-radius:999px;
  background:#fff;
  border:1px solid var(--c-line);
  color:var(--c-text-2);
  font-size:14px;
  font-weight:500;
  transition:all .22s var(--ease);
}
.chip:hover{border-color:var(--c-primary-500);color:var(--c-primary);transform:translateY(-1px);}
.chip.is-active{background:var(--c-primary-100);border-color:transparent;color:var(--c-primary-700);font-weight:600;}

/* ---------- 图文交错 ---------- */
.zigzag{
  padding-top:24px;
  padding-bottom:24px;
  align-items:center;
}
.zigzag + .zigzag{margin-top:72px;}
.zigzag-media{position:relative;}
.zigzag-media .ratio{
  aspect-ratio:16/11;
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-md);
  border:1px solid var(--c-line);
}
.zigzag-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.zigzag-media:hover img{transform:scale(1.04);}
.zigzag-no{
  position:absolute;
  top:16px;left:16px;
  height:32px;
  padding:0 12px;
  border-radius:999px;
  background:rgba(255,255,255,.92);
  color:var(--c-primary-700);
  font-size:12px;
  font-weight:700;
  letter-spacing:1px;
  display:inline-flex;align-items:center;
  font-family:"DIN Alternate",Bahnschrift,ui-monospace,monospace;
  box-shadow:var(--sh-sm);
}
.zigzag-text h3{
  font-size:20px;
  line-height:1.45;
  font-weight:600;
  color:var(--c-primary-900);
  letter-spacing:.2px;
}
.zigzag-text > p{
  margin-top:14px;
  font-size:16px;
  color:var(--c-text-2);
  line-height:1.85;
  max-width:42em;
}
.check-list{margin-top:20px;display:flex;flex-direction:column;gap:12px;}
.check-list li{
  position:relative;
  padding-left:30px;
  font-size:15px;
  color:var(--c-text);
  line-height:1.7;
}
.check-list li::before{
  content:"\f00c";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  position:absolute;
  left:0;top:2px;
  width:20px;height:20px;
  border-radius:50%;
  background:var(--c-primary-100);
  color:var(--c-primary);
  font-size:10px;
  display:inline-flex;align-items:center;justify-content:center;
}
.zigzag-link{
  margin-top:24px;
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;
  color:var(--c-primary);
  border-bottom:1px solid rgba(22,103,201,.35);
  padding-bottom:2px;
}
.zigzag-link:hover{border-bottom-color:var(--c-primary);}

/* ---------- 数字条 ---------- */
.stats-band{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  padding:40px 8px;
  box-shadow:var(--sh-sm);
}
.stat{text-align:center;padding:8px 16px;position:relative;}
.stat + .stat::before{
  content:"";position:absolute;left:0;top:12%;
  width:1px;height:76%;
  background:var(--c-line);
}
.stat .num{
  font-family:"DIN Alternate",Bahnschrift,ui-monospace,monospace;
  font-variant-numeric:tabular-nums;
  font-size:40px;
  line-height:1.1;
  font-weight:700;
  color:var(--c-primary);
  letter-spacing:.5px;
}
.stat .num small{font-size:16px;font-weight:600;margin-left:4px;color:var(--c-primary-700);}
.stat .label{margin-top:8px;font-size:13px;color:var(--c-text-2);}

/* ---------- 深色分组速览 ---------- */
.dark-block{
  position:relative;
  background:
    linear-gradient(115deg,rgba(11,44,85,.96),rgba(18,74,140,.94)),
    url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
  border-radius:var(--r-lg);
  padding:64px;
  color:#fff;
  overflow:hidden;
}
.dark-block::after{
  content:"";
  position:absolute;
  right:-80px;bottom:-90px;
  width:320px;height:320px;
  border:1px solid rgba(255,255,255,.14);
  border-radius:50%;
  pointer-events:none;
}
.dark-block h2{
  font-size:28px;line-height:1.35;font-weight:600;
  color:#fff;letter-spacing:.2px;
}
.dark-block .dark-lead{
  margin-top:14px;
  font-size:15px;
  color:rgba(255,255,255,.78);
  line-height:1.85;
  max-width:34em;
}
.group-list{margin-top:8px;display:flex;flex-direction:column;}
.group-item{
  display:flex;gap:20px;
  padding:22px 0;
  border-bottom:1px solid rgba(255,255,255,.14);
}
.group-item:last-child{border-bottom:none;}
.group-no{
  font-family:"DIN Alternate",Bahnschrift,ui-monospace,monospace;
  font-size:15px;font-weight:700;
  color:var(--c-accent);
  letter-spacing:1px;
  padding-top:2px;
  min-width:34px;
}
.group-item h3{font-size:17px;font-weight:600;color:#fff;line-height:1.5;}
.group-item p{margin-top:6px;font-size:14px;color:rgba(255,255,255,.76);line-height:1.8;}

/* ---------- 适用情况 ---------- */
.scene-list{display:flex;flex-direction:column;gap:18px;}
.scene-item{
  display:flex;gap:16px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:22px 24px;
  box-shadow:var(--sh-sm);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.scene-item:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);}
.scene-item i{
  color:var(--c-primary);
  font-size:18px;
  margin-top:3px;
}
.scene-item h3{font-size:16px;font-weight:600;color:var(--c-primary-900);line-height:1.5;}
.scene-item p{margin-top:6px;font-size:14px;color:var(--c-text-2);line-height:1.75;}

/* ---------- FAQ ---------- */
.faq-side{position:sticky;top:104px;}
.faq-side h2{
  font-size:28px;line-height:1.35;font-weight:600;
  color:var(--c-primary-900);letter-spacing:.2px;
}
.faq-side p{margin-top:14px;font-size:15px;color:var(--c-text-2);line-height:1.8;max-width:20em;}
.faq-side .btn{margin-top:24px;}

.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:12px;
  box-shadow:var(--sh-sm);
  overflow:hidden;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.faq-item[open]{border-color:#CFE0F5;box-shadow:var(--sh-md);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;
  font-size:17px;
  font-weight:600;
  color:var(--c-primary-900);
  line-height:1.55;
  min-height:44px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  flex:none;
  width:26px;height:26px;
  border-radius:8px;
  background:var(--c-primary-100);
  color:var(--c-primary);
  font-size:17px;
  font-weight:600;
  display:inline-flex;align-items:center;justify-content:center;
  transition:transform .25s var(--ease),background .25s var(--ease);
}
.faq-item[open] summary::after{transform:rotate(45deg);background:var(--c-accent-100);color:var(--c-accent);}
.faq-body{
  padding:0 20px 20px 20px;
  border-left:3px solid var(--c-primary);
  margin-left:0;
}
.faq-body p{font-size:15px;line-height:1.85;color:var(--c-text-2);}
.faq-body p + p{margin-top:10px;}

/* ---------- CTA 表单 ---------- */
.cta-block{
  background:var(--c-primary-900);
  border-radius:var(--r-lg);
  padding:64px;
  color:#fff;
  position:relative;
  overflow:hidden;
}
.cta-block::before{
  content:"";
  position:absolute;
  left:-60px;top:-80px;
  width:260px;height:260px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.12);
}
.cta-copy{position:relative;z-index:2;}
.cta-copy h2{font-size:28px;line-height:1.35;font-weight:600;color:#fff;letter-spacing:.2px;}
.cta-copy p{margin-top:16px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.78);max-width:32em;}
.cta-points{margin-top:26px;display:flex;flex-direction:column;gap:12px;}
.cta-points li{position:relative;padding-left:26px;font-size:15px;color:rgba(255,255,255,.9);}
.cta-points li::before{
  content:"";
  position:absolute;left:0;top:9px;
  width:8px;height:8px;border-radius:50%;
  background:var(--c-accent);
}

.cta-form{
  position:relative;z-index:2;
  background:#fff;
  border-radius:var(--r-card);
  padding:28px;
  box-shadow:var(--sh-lg);
  color:var(--c-text);
}
.field{margin-bottom:16px;}
.field label{
  display:block;
  font-size:13px;
  color:var(--c-text-2);
  margin-bottom:6px;
}
.field input,.field select,.field textarea{
  width:100%;
  min-height:48px;
  padding:10px 14px;
  border:1px solid #DCE4EF;
  border-radius:var(--r-btn);
  background:#fff;
  font-size:15px;
  color:var(--c-text);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{min-height:96px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:#A9B4C2;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(22,103,201,.12);
  outline:none;
}
.cta-form .btn{margin-top:6px;}
.form-note{margin-top:12px;font-size:12px;color:var(--c-text-3);text-align:center;line-height:1.7;}
.form-tip{
  margin-top:12px;
  font-size:13px;
  color:var(--c-ok);
  text-align:center;
  min-height:20px;
}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:88px;
  background:#fff;
  border-top:1px solid var(--c-line);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:48px;
  padding:64px 0 48px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-desc{font-size:14px;line-height:1.85;color:var(--c-text-2);max-width:30em;}
.footer-col h4{
  font-size:15px;
  font-weight:600;
  color:var(--c-primary-900);
  margin-bottom:16px;
  position:relative;
  padding-bottom:10px;
}
.footer-col h4::after{
  content:"";
  position:absolute;left:0;bottom:0;
  width:24px;height:2px;border-radius:2px;
  background:var(--c-primary);
}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{
  font-size:14px;
  color:var(--c-text-2);
  transition:color .2s var(--ease),transform .2s var(--ease);
  display:inline-block;
}
.footer-links a:hover{color:var(--c-primary);transform:translateX(2px);}
.footer-contact{display:flex;flex-direction:column;gap:12px;}
.footer-contact li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:14px;color:var(--c-text-2);line-height:1.7;
}
.footer-contact i{color:var(--c-primary);margin-top:4px;font-size:14px;}
.footer-bottom{
  background:var(--c-primary-900);
  color:rgba(255,255,255,.82);
  font-size:13px;
}
.footer-bottom .container{
  display:flex;flex-wrap:wrap;gap:12px;
  align-items:center;justify-content:space-between;
  min-height:56px;
  padding-top:12px;padding-bottom:12px;
}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;
  right:24px;bottom:24px;
  width:44px;height:44px;
  border-radius:50%;
  background:#fff;
  border:1px solid var(--c-line);
  color:var(--c-primary);
  box-shadow:var(--sh-md);
  display:inline-flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;
  transform:translateY(8px);
  transition:all .25s var(--ease);
  z-index:65;
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px;}
}
@media (max-width:1023px){
  .main-nav,.header-actions{display:none;}
  .nav-toggle{display:inline-flex;}
  .section{padding:64px 0;}
  .section-sm{padding:48px 0;}
  .page-hero{padding-bottom:56px;}
  .dark-block,.cta-block{padding:40px 28px;}
  .faq-side{position:static;margin-bottom:28px;}
  .zigzag + .zigzag{margin-top:56px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .hero-facts{flex-direction:column;gap:16px;}
  .hero-fact{border-right:none;margin-right:0;padding-right:0;border-bottom:1px solid var(--c-line);padding-bottom:12px;}
  .hero-fact:last-child{border-bottom:none;padding-bottom:0;}
  .hero-visual{margin-top:32px;}
  .hero-badge{left:12px;bottom:12px;}
  .dark-block,.cta-block{padding:32px 20px;border-radius:var(--r-card);}
  .stat + .stat::before{display:none;}
  .stat{padding:16px 8px;}
  .section-head h2,.dark-block h2,.cta-copy h2,.faq-side h2{font-size:24px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding:48px 0 32px;}
  .footer-bottom .container{flex-direction:column;align-items:flex-start;gap:6px;}
}
@media (max-width:519px){
  .btn{width:100%;}
  .hero-actions{gap:10px;}
  .chip{width:100%;justify-content:center;}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
  .scene-item:hover,.btn:hover,.zigzag-media:hover img{transform:none;}
}

/* roulang page: category3 */
:root{
  --c-primary-900:#0B2C55;
  --c-primary-700:#124A8C;
  --c-primary:#1667C9;
  --c-primary-500:#3B86DE;
  --c-primary-100:#E6EFFB;
  --c-bg:#F5F8FC;
  --c-surface:#FFFFFF;
  --c-accent:#FF7A1A;
  --c-accent-100:#FFF0E3;
  --c-ok:#12A67A;
  --c-text:#16202E;
  --c-text-2:#5B6879;
  --c-text-3:#8A96A6;
  --c-line:#E4EAF3;
  --r-btn:10px;
  --r-card:16px;
  --r-block:20px;
  --shadow-sm:0 1px 2px rgba(16,42,80,.06),0 2px 8px rgba(16,42,80,.05);
  --shadow-md:0 6px 20px rgba(16,42,80,.08);
  --shadow-lg:0 16px 40px rgba(16,42,80,.10);
  --ease:.25s cubic-bezier(.2,.7,.3,1);
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,Arial,sans-serif;
  --font-num:"DIN Alternate","Bahnschrift",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--c-primary);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--c-primary-700);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;color:var(--c-primary-900);font-weight:600;letter-spacing:.2px;}
h1{font-size:clamp(28px,4vw,46px);line-height:1.25;font-weight:700;}
h2{font-size:28px;line-height:1.35;}
h3{font-size:20px;line-height:1.45;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}

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

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:transform var(--ease),background var(--ease),color var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-lg{height:52px;padding:0 30px;font-size:16px;}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 6px 16px rgba(255,122,26,.24);}
.btn-accent:hover{background:#EA6A10;color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(255,122,26,.28);}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-700);color:#fff;transform:translateY(-1px);}
.btn-ghost{background:#fff;border-color:#BFD6F0;color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-100);border-color:var(--c-primary);color:var(--c-primary);}
.btn-dark-ghost{background:transparent;border-color:rgba(255,255,255,.45);color:#fff;}
.btn-dark-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}
.btn:active{transform:translateY(0);}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;border-bottom:1px solid var(--c-line);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-sm);}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  height:76px;transition:height var(--ease);
}
.site-header.is-scrolled .header-inner{height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:none;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-700));
  color:#fff;display:grid;place-items:center;font-size:18px;font-weight:700;letter-spacing:0;
}
.brand-text{font-size:20px;font-weight:700;color:var(--c-primary-900);letter-spacing:.4px;}
.main-nav{display:flex;align-items:center;gap:2px;}
.nav-link{
  position:relative;display:inline-block;
  padding:10px 12px;font-size:15px;font-weight:500;color:#3B4A5F;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:2px;width:0;height:2px;
  background:var(--c-primary);transition:all var(--ease);
}
.nav-link:hover{color:var(--c-primary);}
.nav-link:hover::after{left:12px;width:calc(100% - 24px);}
.nav-link.active{color:var(--c-primary);font-weight:600;}
.nav-link.active::after{left:12px;width:calc(100% - 24px);}
.header-actions{display:flex;align-items:center;gap:10px;flex:none;}

.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;border:1px solid var(--c-line);border-radius:10px;
  background:#fff;cursor:pointer;padding:0 11px;
}
.nav-toggle span{display:block;height:2px;width:100%;background:var(--c-primary-900);border-radius:2px;transition:transform var(--ease),opacity var(--ease);}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.drawer-mask{
  position:fixed;inset:0;background:rgba(11,44,85,.45);
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.nav-drawer{
  position:fixed;top:0;right:0;z-index:90;
  width:84%;max-width:340px;height:100%;
  background:#fff;box-shadow:-12px 0 40px rgba(16,42,80,.14);
  transform:translateX(102%);transition:transform var(--ease);
  display:flex;flex-direction:column;padding:20px;
}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--c-line);}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);background:#fff;color:var(--c-primary-900);cursor:pointer;}
.drawer-nav{display:flex;flex-direction:column;padding:12px 0;flex:1;}
.drawer-nav a{
  padding:14px 12px;border-radius:10px;font-size:16px;color:#33445C;font-weight:500;
}
.drawer-nav a:hover{background:var(--c-primary-100);color:var(--c-primary);}
.drawer-nav a.active{background:var(--c-primary-100);color:var(--c-primary);font-weight:600;}
.drawer-foot{display:flex;gap:10px;padding-top:16px;border-top:1px solid var(--c-line);}
.drawer-foot .btn{flex:1;}

/* ---------- 页面头部横幅 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#FFFFFF 0%,#F0F6FE 100%);
  padding:36px 0 52px;
  border-bottom:1px solid var(--c-line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;
  opacity:.09;pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;right:-80px;top:-60px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(22,103,201,.12) 0%,rgba(22,103,201,0) 68%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:1;}

.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);margin-bottom:18px;flex-wrap:wrap;}
.breadcrumb a{color:var(--c-text-3);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:#C4CEDB;}
.breadcrumb .current{color:var(--c-text-2);}

.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:var(--c-primary-100);color:var(--c-primary);
  font-size:13px;font-weight:600;margin-bottom:16px;
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--c-ok);display:inline-block;}
.page-hero h1{max-width:820px;}
.hero-sub{
  margin-top:16px;max-width:720px;
  font-size:16px;line-height:1.85;color:var(--c-text-2);
}
.hero-meta{display:flex;flex-wrap:wrap;gap:28px;margin-top:26px;}
.hero-meta .item{display:flex;flex-direction:column;gap:2px;padding-left:14px;border-left:3px solid var(--c-primary-100);}
.hero-meta .item .label{font-size:13px;color:var(--c-text-3);}
.hero-meta .item .value{font-size:16px;font-weight:600;color:var(--c-primary-900);font-variant-numeric:tabular-nums;}

/* ---------- 分类 chips ---------- */
.chips-bar{padding:20px 0 0;}
.chips{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  height:40px;padding:0 18px;border-radius:999px;
  background:#fff;border:1px solid var(--c-line);
  font-size:14px;font-weight:500;color:var(--c-text-2);
  transition:all var(--ease);
}
.chip:hover{border-color:#BFD6F0;color:var(--c-primary);background:var(--c-primary-100);transform:translateY(-2px);}
.chip.is-current{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:600;}
.chip.is-current:hover{color:#fff;background:var(--c-primary-700);}

/* ---------- 搜索面板 ---------- */
.search-panel{padding:44px 0 8px;}
.search-box{
  display:flex;align-items:center;gap:12px;
  max-width:860px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:10px 10px 10px 20px;
  box-shadow:var(--shadow-md);
}
.search-box .fa-magnifying-glass{color:var(--c-primary);font-size:17px;flex:none;}
.search-box input{
  flex:1;min-width:0;height:46px;border:0;background:transparent;outline:none;
  font-size:15px;color:var(--c-text);
}
.search-box input::placeholder{color:var(--c-text-3);}
.search-hint{margin-top:14px;font-size:14px;color:var(--c-text-2);}
.search-hint strong{color:var(--c-primary);font-variant-numeric:tabular-nums;}

/* ---------- 更新提示横条 ---------- */
.notice-wrap{padding:24px 0 0;}
.notice-bar{
  display:flex;align-items:center;gap:16px;flex-wrap:wrap;
  background:var(--c-accent-100);
  border:1px solid #FFD9B8;
  border-radius:14px;
  padding:14px 20px;
}
.notice-tag{
  flex:none;display:inline-flex;align-items:center;gap:6px;
  background:var(--c-accent);color:#fff;
  font-size:12px;font-weight:600;height:26px;padding:0 12px;border-radius:999px;
}
.notice-bar p{flex:1;min-width:220px;font-size:14px;color:#7A4318;margin:0;}
.notice-link{font-size:14px;font-weight:600;color:#B4520A;white-space:nowrap;}
.notice-link:hover{color:#8A3D05;}

/* ---------- 通用区块 ---------- */
.section{padding:72px 0;}
.section-head{max-width:720px;margin-bottom:36px;}
.section-head .eyebrow{
  display:inline-block;font-size:13px;font-weight:600;color:var(--c-primary);
  letter-spacing:1px;margin-bottom:10px;
}
.section-head h2{margin-bottom:14px;}
.section-head p{font-size:15px;line-height:1.85;color:var(--c-text-2);}

/* ---------- FAQ 双列网格 ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.faq-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:26px 24px;
  box-shadow:var(--shadow-sm);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  position:relative;
}
.faq-card::before{
  content:"";position:absolute;left:0;top:24px;bottom:24px;width:3px;border-radius:0 3px 3px 0;
  background:var(--c-primary-100);transition:background var(--ease);
}
.faq-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#CFE0F7;}
.faq-card:hover::before{background:var(--c-primary);}
.faq-q{display:flex;gap:12px;align-items:flex-start;font-size:18px;margin-bottom:12px;}
.faq-num{
  flex:none;display:inline-flex;align-items:center;justify-content:center;
  min-width:34px;height:26px;border-radius:8px;
  background:var(--c-primary-100);color:var(--c-primary);
  font-family:var(--font-num);font-size:13px;font-weight:700;
  font-variant-numeric:tabular-nums;margin-top:2px;
}
.faq-a{font-size:15px;line-height:1.85;color:var(--c-text-2);padding-left:46px;}
.faq-empty{
  display:none;
  border:1px dashed #C6D6EA;border-radius:var(--r-card);
  background:#fff;padding:40px 24px;text-align:center;color:var(--c-text-2);
}
.faq-empty.is-show{display:block;}
.faq-empty i{font-size:26px;color:var(--c-primary-500);margin-bottom:12px;display:block;}
.faq-empty .btn{margin-top:16px;}

/* ---------- 快速入口卡组 ---------- */
.entry-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:24px 22px;
  box-shadow:var(--shadow-sm);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#CFE0F7;}
.entry-icon{
  width:46px;height:46px;border-radius:12px;
  background:var(--c-primary-100);color:var(--c-primary);
  display:grid;place-items:center;font-size:18px;margin-bottom:16px;
}
.entry-card h3{font-size:17px;margin-bottom:8px;}
.entry-card p{font-size:14px;line-height:1.8;color:var(--c-text-2);flex:1;}
.entry-more{margin-top:16px;font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.entry-more i{font-size:12px;transition:transform var(--ease);}
.entry-card:hover .entry-more i{transform:translateX(4px);}

/* ---------- 图文步骤 ---------- */
.steps-block{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.steps-media{
  border-radius:var(--r-block);overflow:hidden;box-shadow:var(--shadow-md);
  background:#EAF2FC;
}
.steps-media img{width:100%;height:100%;min-height:280px;object-fit:cover;aspect-ratio:4/3;}
.step-list{display:flex;flex-direction:column;gap:18px;margin-top:26px;}
.step-item{display:flex;gap:16px;align-items:flex-start;}
.step-no{
  flex:none;width:38px;height:38px;border-radius:12px;
  background:var(--c-primary-900);color:#fff;
  display:grid;place-items:center;
  font-family:var(--font-num);font-size:14px;font-weight:700;
  font-variant-numeric:tabular-nums;
}
.step-item h3{font-size:17px;margin-bottom:4px;}
.step-item p{font-size:14px;line-height:1.8;color:var(--c-text-2);}

/* ---------- CTA 表单 ---------- */
.cta-section{padding:88px 0;}
.cta-block{
  background:var(--c-primary-900);
  border-radius:var(--r-block);
  padding:56px;
  position:relative;overflow:hidden;
  color:#fff;
}
.cta-block::after{
  content:"";position:absolute;right:-120px;bottom:-140px;width:420px;height:420px;border-radius:50%;
  border:1px solid rgba(255,255,255,.14);
  box-shadow:0 0 0 60px rgba(255,255,255,.04);
  pointer-events:none;
}
.cta-block .cta-inner{position:relative;z-index:1;}
.cta-text .badge-light{
  display:inline-block;padding:5px 14px;border-radius:999px;
  background:rgba(255,122,26,.18);color:#FFB37A;
  font-size:12px;font-weight:600;margin-bottom:16px;
}
.cta-text h2{color:#fff;font-size:30px;line-height:1.35;margin-bottom:14px;}
.cta-text > p{font-size:15px;line-height:1.9;color:rgba(255,255,255,.76);max-width:520px;}
.cta-points{margin-top:24px;display:flex;flex-direction:column;gap:10px;}
.cta-points li{display:flex;align-items:center;gap:10px;font-size:14px;color:rgba(255,255,255,.86);}
.cta-points i{color:#FFB37A;font-size:13px;}

.cta-form{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-card);
  padding:26px 24px;
}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:6px;}
.field input,.field select,.field textarea{
  width:100%;height:48px;border-radius:var(--r-btn);
  border:1px solid #DCE4EF;background:#fff;color:var(--c-text);
  padding:0 14px;outline:none;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(22,103,201,.12);
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,#5B6879 50%),linear-gradient(135deg,#5B6879 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;background-size:5px 5px,5px 5px;background-repeat:no-repeat;}
.cta-form .btn{width:100%;}
.form-note{margin-top:12px;font-size:12px;line-height:1.7;color:rgba(255,255,255,.6);}
.form-result{
  display:none;margin-top:12px;padding:10px 14px;border-radius:10px;
  background:rgba(18,166,122,.16);border:1px solid rgba(18,166,122,.4);
  font-size:13px;color:#9BE7CD;
}
.form-result.is-show{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;border-top:1px solid var(--c-line);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:18px;position:relative;padding-bottom:10px;}
.footer-col h4::after{content:"";position:absolute;left:0;bottom:0;width:22px;height:2px;background:var(--c-primary);border-radius:2px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-desc{font-size:14px;line-height:1.85;color:var(--c-text-2);max-width:340px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:var(--c-text-2);transition:color var(--ease),transform var(--ease);}
.footer-links a:hover{color:var(--c-primary);transform:translateX(2px);}
.footer-contact{display:flex;flex-direction:column;gap:12px;}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--c-text-2);line-height:1.7;}
.footer-contact i{color:var(--c-primary);margin-top:4px;font-size:13px;}
.footer-bottom{margin-top:52px;background:var(--c-primary-900);padding:16px 0;}
.footer-bottom .container{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;}
.footer-bottom span{font-size:12.5px;color:rgba(255,255,255,.72);}

/* ---------- 回到顶部 ---------- */
.back-top{
  position:fixed;right:24px;bottom:24px;z-index:70;
  width:44px;height:44px;border-radius:50%;
  background:#fff;border:1px solid var(--c-line);
  box-shadow:var(--shadow-md);color:var(--c-primary);
  display:grid;place-items:center;cursor:pointer;
  opacity:0;visibility:hidden;transition:all var(--ease);
}
.back-top.is-show{opacity:1;visibility:visible;}
.back-top:hover{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .main-nav{display:none;}
  .header-actions .btn-ghost{display:none;}
  .nav-toggle{display:flex;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-block{padding:40px 32px;}
  .section{padding:60px 0;}
}
@media (max-width:860px){
  .faq-grid{grid-template-columns:1fr;}
  .faq-a{padding-left:0;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .header-inner{height:64px;gap:12px;}
  .brand-text{font-size:17px;}
  .brand-mark{width:34px;height:34px;border-radius:10px;font-size:16px;}
  .page-hero{padding:26px 0 38px;}
  .hero-meta{gap:16px;}
  .hero-meta .item{flex:1 1 100%;}
  .search-panel{padding:32px 0 4px;}
  .search-box{flex-wrap:wrap;padding:14px;border-radius:14px;}
  .search-box input{height:40px;flex:1 1 100%;order:2;}
  .search-box .fa-magnifying-glass{order:1;}
  .search-box .btn{order:3;width:100%;}
  .section{padding:48px 0;}
  .cta-section{padding:56px 0;}
  .cta-block{padding:32px 22px;border-radius:16px;}
  .cta-text h2{font-size:24px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-desc{max-width:none;}
  .footer-bottom .container{justify-content:center;text-align:center;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category4 */
:root{
  --c-primary-900:#0B2C55;
  --c-primary-700:#124A8C;
  --c-primary:#1667C9;
  --c-primary-500:#3B86DE;
  --c-primary-100:#E6EFFB;
  --c-bg:#F5F8FC;
  --c-surface:#FFFFFF;
  --c-accent:#FF7A1A;
  --c-accent-100:#FFF0E3;
  --c-ok:#12A67A;
  --c-text:#16202E;
  --c-text-2:#5B6879;
  --c-text-3:#8A96A6;
  --c-line:#E4EAF3;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-sm:0 1px 2px rgba(16,42,80,.06),0 2px 8px rgba(16,42,80,.05);
  --sh-md:0 6px 20px rgba(16,42,80,.08);
  --sh-lg:0 16px 40px rgba(16,42,80,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.nav-open{overflow:hidden;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
h1,h2,h3,h4{font-weight:600;color:var(--c-primary-900);letter-spacing:.2px;}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--c-primary-700);}
button{font-family:inherit;}
::selection{background:var(--c-primary-100);color:var(--c-primary-900);}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}
.container{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 24px;
}
.tabular{font-variant-numeric:tabular-nums;font-family:"DIN Alternate",Bahnschrift,ui-monospace,Menlo,Consolas,monospace;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(150%) blur(8px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-sm);}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:20px;
  height:76px;
  transition:height .25s var(--ease);
}
.site-header.is-scrolled .nav-wrap{height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(135deg,var(--c-primary) 0%,var(--c-primary-900) 100%);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:700;flex-shrink:0;
  box-shadow:0 4px 12px rgba(22,103,201,.28);
}
.brand-text{
  font-size:20px;font-weight:700;color:var(--c-primary-900);
  letter-spacing:.2px;white-space:nowrap;
}
.main-nav{display:flex;align-items:center;gap:22px;margin-left:auto;}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--c-text-2);
  padding:6px 0;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;left:50%;right:50%;bottom:0;
  height:2px;background:var(--c-primary);border-radius:2px;
  transition:left .25s var(--ease),right .25s var(--ease);
}
.nav-link:hover{color:var(--c-primary);}
.nav-link:hover::after{left:0;right:0;}
.nav-link.active{color:var(--c-primary);font-weight:600;}
.nav-link.active::after{left:0;right:0;}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:20px;flex-shrink:0;}
.drawer-actions{display:none;}
.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:44px;height:44px;
  padding:0 11px;
  margin-left:auto;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-sm);
  cursor:pointer;
}
.nav-toggle span{display:block;height:2px;background:var(--c-primary-900);border-radius:2px;transition:transform .3s var(--ease),opacity .2s;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:44px;padding:0 20px;
  border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1;
  text-decoration:none;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:background-color .25s var(--ease),color .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.btn i{font-size:14px;}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 6px 16px rgba(255,122,26,.26);}
.btn-primary:hover{background:#E96A0D;color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(255,122,26,.3);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{border-color:var(--c-primary);color:var(--c-primary);background:#fff;}
.btn-ghost:hover{background:var(--c-primary-100);color:var(--c-primary-700);}
.btn-light{background:#fff;color:var(--c-primary-900);}
.btn-light:hover{background:var(--c-primary-100);color:var(--c-primary-700);}
.btn-outline-light{border-color:rgba(255,255,255,.55);color:#fff;background:transparent;}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;}
.btn-lg{height:48px;padding:0 26px;font-size:16px;}
.btn-block{width:100%;}

/* ============ 页头横幅 ============ */
.page-hero{position:relative;overflow:hidden;background:#fff;padding:44px 0 40px;border-bottom:1px solid var(--c-line);}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  opacity:.14;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(255,255,255,.97) 0%,rgba(240,246,254,.88) 62%,rgba(230,239,251,.82) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{font-size:13px;color:var(--c-text-3);display:flex;align-items:center;flex-wrap:wrap;gap:6px;margin-bottom:18px;}
.breadcrumb a{color:var(--c-text-3);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb span.sep{color:#C6D0DE;}
.breadcrumb span.current{color:var(--c-text-2);}
.page-hero h1{
  font-size:clamp(28px,4vw,46px);
  line-height:1.25;font-weight:700;
  letter-spacing:.2px;max-width:880px;
}
.hero-sub{
  margin-top:16px;font-size:17px;line-height:1.8;color:var(--c-text-2);
  max-width:760px;
}
.hero-points{
  display:flex;flex-wrap:wrap;gap:12px 32px;margin-top:26px;
}
.hero-points .point{
  padding-left:14px;border-left:2px solid var(--c-primary-500);
}
.hero-points .point .k{display:block;font-size:13px;color:var(--c-text-3);line-height:1.6;}
.hero-points .point .v{display:block;font-size:16px;font-weight:600;color:var(--c-primary-900);line-height:1.6;}
.cat-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  height:38px;padding:0 18px;
  border-radius:var(--r-pill);
  background:var(--c-primary-100);
  color:var(--c-primary-700);
  font-size:14px;font-weight:500;
  border:1px solid transparent;
  transition:all .25s var(--ease);
}
.chip:hover{background:#D8E6F9;color:var(--c-primary-900);transform:translateY(-1px);}
.chip.active{background:var(--c-primary);color:#fff;box-shadow:0 6px 16px rgba(22,103,201,.24);}
.chip.active:hover{background:var(--c-primary-700);color:#fff;}

/* ============ 通用板块 ============ */
.section{padding:92px 0;}
.section.tight{padding:64px 0;}
.section.alt{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;color:var(--c-primary);
  background:var(--c-primary-100);
  padding:5px 12px;border-radius:var(--r-pill);
  margin-bottom:16px;letter-spacing:.4px;
}
.eyebrow.accent{background:var(--c-accent-100);color:#C25708;}
.section-head h2{font-size:28px;line-height:1.35;font-weight:600;}
.section-head p{margin-top:14px;font-size:16px;color:var(--c-text-2);}

/* ============ 数据条 ============ */
.stat-bar{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
  box-shadow:var(--sh-sm);
  padding:28px 8px;
}
.stat{padding:0 24px;border-right:1px solid var(--c-line);}
.stat:last-child{border-right:none;}
.stat .num{
  font-size:40px;line-height:1.15;font-weight:700;color:var(--c-primary-900);
  font-variant-numeric:tabular-nums;
  font-family:"DIN Alternate",Bahnschrift,ui-monospace,Menlo,Consolas,monospace;
  letter-spacing:.5px;
}
.stat .num small{font-size:16px;font-weight:600;margin-left:4px;color:var(--c-text-2);}
.stat .label{font-size:13px;color:var(--c-text-3);margin-top:6px;}

/* ============ 卡片矩阵 ============ */
.matrix{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-sm);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);border-color:#D5E2F5;}
.card-lg{grid-column:span 6;min-height:360px;}
.card-sm{grid-column:span 3;min-height:250px;}
.card-media{position:relative;overflow:hidden;aspect-ratio:16/9;background:var(--c-primary-100);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.card-lg:hover .card-media img{transform:scale(1.05);}
.card-media .tag{
  position:absolute;left:16px;top:16px;
  background:rgba(255,255,255,.94);
  color:var(--c-primary-700);
  font-size:12px;font-weight:600;
  padding:5px 12px;border-radius:var(--r-pill);
  box-shadow:var(--sh-sm);
}
.card-body{padding:24px 24px 26px;display:flex;flex-direction:column;flex:1 1 auto;}
.card-sm .card-body{padding:22px 22px 24px;}
.card-body h3{font-size:20px;line-height:1.45;font-weight:600;}
.card-sm .card-body h3{font-size:17px;}
.card-body p{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--c-text-2);}
.card-link{
  margin-top:auto;padding-top:18px;
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--c-primary);
}
.card-link i{font-size:12px;transition:transform .25s var(--ease);}
.card:hover .card-link i{transform:translateX(4px);}
.card-icon{
  width:44px;height:44px;border-radius:12px;
  background:var(--c-primary-100);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:18px;margin-bottom:16px;
}

/* ============ 处理流程 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step;}
.step{
  position:relative;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:28px 24px 26px;box-shadow:var(--sh-sm);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);}
.step-num{
  font-size:26px;font-weight:700;color:var(--c-primary-500);
  font-variant-numeric:tabular-nums;letter-spacing:1px;
  font-family:"DIN Alternate",Bahnschrift,ui-monospace,Menlo,Consolas,monospace;
  margin-bottom:14px;
}
.step::after{
  content:"";position:absolute;right:-24px;top:44px;width:24px;height:2px;
  background:linear-gradient(90deg,var(--c-line),transparent);
}
.step:last-child::after{display:none;}
.step h3{font-size:18px;line-height:1.5;}
.step p{margin-top:10px;font-size:14.5px;color:var(--c-text-2);line-height:1.8;}

/* ============ 图文分栏 ============ */
.split{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center;}
.split-media{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-md);aspect-ratio:4/3;background:var(--c-primary-100);}
.split-media img{width:100%;height:100%;object-fit:cover;}
.split-media .badge-float{
  position:absolute;left:20px;bottom:20px;
  background:rgba(255,255,255,.95);
  border-radius:12px;padding:10px 16px;
  font-size:13px;font-weight:600;color:var(--c-primary-900);
  box-shadow:var(--sh-sm);
}
.split-copy h2{font-size:28px;line-height:1.35;}
.split-copy > p{margin-top:16px;font-size:16px;color:var(--c-text-2);}
.check-list{list-style:none;padding:0;margin:24px 0 0;}
.check-list li{
  position:relative;padding:12px 0 12px 34px;
  border-bottom:1px dashed var(--c-line);
  font-size:15px;color:var(--c-text-2);line-height:1.8;
}
.check-list li:last-child{border-bottom:none;}
.check-list li::before{
  content:"\f00c";
  font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:16px;
  width:20px;height:20px;border-radius:50%;
  background:var(--c-primary-100);color:var(--c-primary);
  font-size:10px;display:flex;align-items:center;justify-content:center;
}

/* ============ 问题索引 ============ */
.qa-rows{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-sm);}
.q-row{
  display:grid;grid-template-columns:52px 1fr auto;gap:20px;align-items:center;
  padding:22px 26px;border-bottom:1px solid var(--c-line);
  transition:background-color .25s var(--ease);
}
.q-row:last-child{border-bottom:none;}
.q-row:hover{background:var(--c-bg);}
.q-idx{
  width:52px;height:52px;border-radius:14px;
  background:var(--c-primary-100);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:19px;
}
.q-main h3{font-size:17px;line-height:1.5;}
.q-main p{margin-top:6px;font-size:14px;color:var(--c-text-2);line-height:1.75;}
.q-action{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--c-primary);
  white-space:nowrap;padding:10px 0;
}
.q-action i{font-size:12px;transition:transform .25s var(--ease);}
.q-action:hover i{transform:translateX(4px);}

/* ============ 表单 CTA ============ */
.cta-block{
  position:relative;overflow:hidden;
  background:var(--c-primary-900);
  border-radius:var(--r-lg);
  padding:60px;
  display:grid;grid-template-columns:7fr 5fr;gap:56px;
  color:#fff;
  box-shadow:var(--sh-lg);
}
.cta-block::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:22px 22px;opacity:.5;pointer-events:none;
}
.cta-block::after{
  content:"";position:absolute;right:-90px;bottom:-140px;
  width:340px;height:340px;border-radius:50%;
  border:1px solid rgba(255,255,255,.14);
  pointer-events:none;
}
.cta-copy{position:relative;z-index:2;}
.cta-copy .eyebrow{background:rgba(255,122,26,.18);color:#FFB27A;}
.cta-copy h2{color:#fff;font-size:30px;line-height:1.35;}
.cta-copy > p{margin-top:16px;font-size:16px;color:rgba(255,255,255,.78);max-width:520px;}
.cta-notes{list-style:none;padding:0;margin:28px 0 0;}
.cta-notes li{
  position:relative;padding-left:22px;margin-bottom:12px;
  font-size:14.5px;color:rgba(255,255,255,.78);line-height:1.75;
}
.cta-notes li::before{
  content:"";position:absolute;left:0;top:9px;
  width:8px;height:8px;border-radius:50%;background:var(--c-accent);
}
.form-card{
  position:relative;z-index:2;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--r-md);
  padding:26px;
}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:7px;}
.field input,.field select,.field textarea{
  width:100%;
  min-height:48px;
  padding:12px 14px;
  font-size:15px;font-family:inherit;color:#fff;line-height:1.5;
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.22);
  border-radius:var(--r-sm);
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease),background-color .25s var(--ease);
  appearance:none;
}
.field textarea{min-height:104px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:rgba(255,255,255,.42);}
.field select{background-image:linear-gradient(45deg,transparent 50%,rgba(255,255,255,.7) 50%),linear-gradient(135deg,rgba(255,255,255,.7) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;}
.field select option{color:var(--c-text);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--c-primary-500);
  background:rgba(255,255,255,.11);
  box-shadow:0 0 0 3px rgba(59,134,222,.28);
}
.form-note{margin-top:12px;font-size:12px;color:rgba(255,255,255,.55);line-height:1.7;}

/* ============ 页脚 ============ */
.site-footer{background:#fff;border-top:1px solid var(--c-line);margin-top:0;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding:64px 0 48px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-desc{font-size:14px;color:var(--c-text-2);line-height:1.85;max-width:340px;}
.footer-col h4{
  font-size:15px;font-weight:600;color:var(--c-primary-900);
  padding-bottom:10px;margin-bottom:16px;position:relative;
}
.footer-col h4::after{
  content:"";position:absolute;left:0;bottom:0;
  width:24px;height:2px;background:var(--c-primary);border-radius:2px;
}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{
  font-size:14px;color:var(--c-text-2);
  transition:color .2s var(--ease),transform .2s var(--ease);
  display:inline-block;
}
.footer-links a:hover{color:var(--c-primary);transform:translateX(2px);}
.footer-contact{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px;}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--c-text-2);line-height:1.7;}
.footer-contact i{color:var(--c-primary);font-size:14px;margin-top:5px;flex-shrink:0;}
.footer-bottom{background:var(--c-primary-900);}
.footer-bottom .container{
  display:flex;justify-content:space-between;align-items:center;gap:16px;
  padding-top:16px;padding-bottom:16px;
  font-size:13px;color:rgba(255,255,255,.7);flex-wrap:wrap;
}
.to-top{
  position:fixed;right:24px;bottom:24px;
  width:44px;height:44px;border-radius:50%;
  background:#fff;color:var(--c-primary);
  border:1px solid var(--c-line);
  box-shadow:var(--sh-md);
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;opacity:0;visibility:hidden;
  transition:opacity .25s var(--ease),visibility .25s var(--ease),transform .25s var(--ease);
  z-index:70;
}
.to-top.show{opacity:1;visibility:visible;}
.to-top:hover{transform:translateY(-3px);color:var(--c-primary-700);}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .main-nav{
    position:fixed;top:0;right:0;bottom:0;
    width:84%;max-width:340px;
    background:#fff;
    flex-direction:column;align-items:stretch;
    gap:0;
    margin-left:0;
    padding:92px 24px 24px;
    transform:translateX(100%);
    transition:transform .3s var(--ease);
    box-shadow:-12px 0 40px rgba(16,42,80,.14);
    z-index:90;
    overflow-y:auto;
  }
  .main-nav.open{transform:translateX(0);}
  .nav-link{
    font-size:16px;
    padding:14px 0;
    border-bottom:1px solid var(--c-line);
  }
  .nav-link::after{display:none;}
  .nav-link.active{color:var(--c-primary);}
  .drawer-actions{
    display:flex;flex-direction:column;gap:12px;
    margin-top:28px;
  }
  .nav-actions{display:none;}
  .nav-toggle{display:flex;z-index:95;}
  .section{padding:64px 0;}
  .section-head{margin-bottom:32px;}
  .matrix{grid-template-columns:repeat(12,1fr);}
  .card-lg{grid-column:span 6;min-height:320px;}
  .card-sm{grid-column:span 6;min-height:230px;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .step::after{display:none;}
  .split{grid-template-columns:1fr;gap:32px;}
  .cta-block{grid-template-columns:1fr;gap:36px;padding:44px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 36px;}
  .stat-bar{grid-template-columns:repeat(2,1fr);padding:20px 8px;row-gap:24px;}
  .stat{border-right:none;}
  .stat:nth-child(odd){border-right:1px solid var(--c-line);}
}
@media (max-width:640px){
  .container{padding:0 16px;}
  .brand-text{font-size:17px;}
  .page-hero{padding:32px 0 30px;}
  .hero-sub{font-size:15.5px;}
  .hero-points{gap:14px 20px;}
  .hero-points .point{width:calc(50% - 12px);}
  .section{padding:52px 0;}
  .section-head h2{font-size:23px;}
  .split-copy h2,.cta-copy h2{font-size:23px;}
  .matrix{gap:16px;}
  .card-lg,.card-sm{grid-column:span 12;min-height:0;}
  .steps{grid-template-columns:1fr;gap:16px;}
  .q-row{grid-template-columns:44px 1fr;gap:14px;padding:18px 18px;}
  .q-idx{width:44px;height:44px;border-radius:12px;font-size:16px;}
  .q-action{grid-column:2;padding:0;}
  .cta-block{padding:30px 22px;border-radius:16px;}
  .form-card{padding:20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom .container{justify-content:flex-start;font-size:12px;}
  .stat{padding:0 16px;}
  .stat .num{font-size:32px;}
  .to-top{right:16px;bottom:16px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}