/* roulang page: index */
:root{
  --ink-950:#0B0F14;
  --ink-900:#131922;
  --ink-700:#2A2F36;
  --ink-500:#6B7280;
  --line:#E7EAEE;
  --bg:#F6F7F9;
  --card:#FFFFFF;
  --lime-400:#B8FF2E;
  --lime-700:#4D7A00;
  --violet-500:#6C4CFF;
  --ember-500:#FF6A2B;
  --soft-lime:#F2FFD6;
  --radius-btn:10px;
  --radius-card:16px;
  --radius-hero:20px;
  --shadow-sm:0 1px 2px rgba(11,15,20,.06);
  --shadow-md:0 8px 24px rgba(11,15,20,.08);
  --shadow-lg:0 20px 48px rgba(11,15,20,.18);
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink-700);background:var(--bg);line-height:1.8;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{font-weight:800;color:var(--ink-950);letter-spacing:-.01em;margin:0;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--lime-400);outline-offset:2px;border-radius:6px}
::selection{background:var(--lime-400);color:var(--ink-950)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media (max-width:1023px){.container{padding:0 24px}}
@media (max-width:767px){.container{padding:0 16px}}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:var(--radius-btn);font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;white-space:nowrap;transition:background .2s ease,color .2s ease,transform .2s ease,border-color .2s ease,box-shadow .2s ease}
.btn i{font-size:13px}
.btn-primary{background:var(--lime-400);color:var(--ink-950)}
.btn-primary:hover{background:var(--lime-700);color:#fff;transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(0,0,0,.18)}
.btn-outline{border-color:rgba(184,255,46,.55);color:var(--lime-400);background:transparent}
.btn-outline:hover{background:var(--lime-400);color:var(--ink-950);transform:translateY(-2px)}
.btn-ghost{border-color:var(--line);background:#fff;color:var(--ink-700)}
.btn-ghost:hover{border-color:var(--lime-400);color:var(--ink-950);box-shadow:var(--shadow-sm);transform:translateY(-2px)}
.btn-dark{background:var(--ink-950);color:#fff}
.btn-dark:hover{background:var(--ink-900);color:var(--lime-400);transform:translateY(-2px)}
.btn-lg{height:50px;padding:0 28px;font-size:16px}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none!important}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow-sm)}
.nav-wrap{display:flex;align-items:center;gap:28px;height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.brand-mark{width:32px;height:32px;border-radius:9px;background:var(--ink-950);color:var(--lime-400);display:grid;place-items:center;font-size:15px;transition:transform .2s ease}
.brand:hover .brand-mark{transform:rotate(-8deg)}
.brand-text{font-size:17px;font-weight:800;color:var(--ink-950)}
.nav-links{display:flex;align-items:center;gap:2px}
.nav-link{position:relative;padding:8px 12px;border-radius:8px;font-size:15px;font-weight:500;color:var(--ink-700);transition:color .2s ease,background .2s ease}
.nav-link:hover{color:var(--ink-950);background:var(--bg)}
.nav-link.active{color:var(--ink-950);font-weight:700}
.nav-link.active::after{content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;border-radius:2px;background:var(--lime-400)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{display:flex;align-items:center;gap:8px;height:40px;padding:0 16px;border:1px solid var(--line);border-radius:999px;background:var(--bg);transition:border-color .2s ease,box-shadow .2s ease,background .2s ease}
.search-box:focus-within{border-color:var(--lime-400);background:#fff;box-shadow:0 0 0 3px rgba(184,255,46,.28)}
.search-box i{color:var(--ink-500);font-size:13px}
.search-box input{border:0;background:transparent;outline:none;width:150px;font-size:14px}
.menu-toggle{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;cursor:pointer}
.menu-toggle:hover{border-color:var(--lime-400)}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:#fff;padding:8px 0 14px}
.mobile-drawer.open{display:block}
.mobile-drawer a{display:block;padding:0 22px;height:48px;line-height:48px;font-size:15px;border-bottom:1px solid var(--line)}
.mobile-drawer a:last-child{border-bottom:0}
.mobile-drawer a.active{color:var(--ink-950);font-weight:700;box-shadow:inset 3px 0 0 var(--lime-400)}
@media (max-width:1023px){
  .nav-links,.search-box{display:none}
  .menu-toggle{display:inline-flex}
}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--ink-950);color:#fff;overflow:hidden;
  background-image:linear-gradient(105deg,rgba(11,15,20,.96) 0%,rgba(11,15,20,.9) 46%,rgba(11,15,20,.72) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center}
.hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:4px;background:var(--lime-400);transform:skewY(-.35deg);transform-origin:left center}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;padding:84px 0 104px;position:relative;z-index:1}
.hero-tag{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;border:1px solid rgba(184,255,46,.45);color:var(--lime-400);font-size:13px;font-weight:600;background:rgba(184,255,46,.08)}
.hero h1{color:#fff;font-size:42px;line-height:1.28;margin:22px 0 18px;max-width:17em}
.hero-sub{color:rgba(255,255,255,.74);font-size:18px;line-height:1.85;max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-badges{display:flex;flex-wrap:wrap;gap:14px 26px;margin-top:34px;padding-top:26px;border-top:1px solid rgba(255,255,255,.12)}
.hero-badges li{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.82)}
.hero-badges i{color:var(--lime-400)}
.hero-visual{position:relative}
.hero-img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-hero);box-shadow:var(--shadow-lg)}
.hero-mini{position:absolute;right:-6px;bottom:-28px;width:56%;background:#fff;border-radius:14px;padding:14px;display:flex;gap:12px;align-items:center;box-shadow:var(--shadow-lg)}
.hero-mini img{width:52px;height:52px;border-radius:10px;object-fit:cover;flex:none}
.hero-mini strong{display:block;color:var(--ink-950);font-size:15px;line-height:1.4}
.hero-mini span{font-size:12px;color:var(--ink-500)}
@media (max-width:1023px){
  .hero-grid{grid-template-columns:1fr;gap:48px;padding:56px 0 76px}
  .hero h1{font-size:33px}
  .hero-sub{font-size:16.5px}
}
@media (max-width:767px){
  .hero h1{font-size:26px}
  .hero-actions .btn{flex:1 1 100%}
  .hero-mini{position:static;width:100%;margin-top:18px}
}

/* ---------- 板块 ---------- */
.section{padding:96px 0}
.section-white{background:#fff}
.section-dark{background:var(--ink-950);color:rgba(255,255,255,.75)}
.section-dark .section-title{color:#fff}
.section-dark .section-desc{color:rgba(255,255,255,.66)}
.section-head{max-width:740px;margin-bottom:44px}
.section-eyebrow{display:inline-block;font-size:13px;font-weight:700;color:var(--lime-700);letter-spacing:.1em;margin-bottom:12px}
.section-dark .section-eyebrow{color:var(--lime-400)}
.section-title{font-size:32px;margin-bottom:14px}
.section-desc{color:var(--ink-500);font-size:16px}
@media (max-width:767px){
  .section{padding:56px 0}
  .section-title{font-size:24px}
  .section-head{margin-bottom:30px}
}

/* ---------- 速览 ---------- */
.ov-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:20px}
.ov-card{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:28px;box-shadow:var(--shadow-sm);overflow:hidden;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.ov-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--lime-400);opacity:0;transition:opacity .22s ease}
.ov-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--lime-400)}
.ov-card:hover::before{opacity:1}
.ov-card h3{font-size:19px;margin-bottom:10px}
.ov-card p{color:var(--ink-500);font-size:15px}
.ov-icon{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:var(--soft-lime);color:var(--lime-700);font-size:17px;margin-bottom:18px}
.ov-feature{background:var(--ink-900);border-color:rgba(184,255,46,.28);color:rgba(255,255,255,.72)}
.ov-feature h3{color:#fff;font-size:23px}
.ov-feature p{color:rgba(255,255,255,.66)}
.ov-feature .ov-icon{background:rgba(184,255,46,.14);color:var(--lime-400)}
.ov-feature::before{opacity:1}
.ov-list{margin-top:20px;display:grid;gap:10px}
.ov-list li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:rgba(255,255,255,.78)}
.ov-list i{color:var(--lime-400);font-size:12px;margin-top:7px}
@media (max-width:1023px){.ov-grid{grid-template-columns:1fr 1fr}.ov-feature{grid-column:1/-1}}
@media (max-width:767px){.ov-grid{grid-template-columns:1fr}}

/* ---------- 福利阶梯 ---------- */
.tier-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:end}
.tier{position:relative;border-radius:var(--radius-card);padding:32px 28px;display:flex;flex-direction:column;border:1px solid var(--line)}
.tier-1{background:#fff;min-height:360px;box-shadow:var(--shadow-sm)}
.tier-2{background:var(--ink-900);border-color:rgba(184,255,46,.5);color:rgba(255,255,255,.72);min-height:404px;box-shadow:var(--shadow-md)}
.tier-3{background:var(--ink-950);border-color:rgba(184,255,46,.35);color:rgba(255,255,255,.72);min-height:448px;box-shadow:var(--shadow-lg);overflow:hidden}
.tier-3::before{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--lime-400)}
.tier-flag{position:absolute;right:20px;top:20px;background:var(--ember-500);color:#fff;font-size:12px;font-weight:700;padding:5px 12px;border-radius:999px;transform:rotate(-4deg)}
.tier-no{font-size:46px;font-weight:800;line-height:1;color:var(--ink-950);font-variant-numeric:tabular-nums}
.tier-2 .tier-no,.tier-3 .tier-no{color:var(--lime-400)}
.tier-name{font-size:21px;font-weight:800;margin:14px 0 6px;color:var(--ink-950)}
.tier-2 .tier-name,.tier-3 .tier-name{color:#fff}
.tier-note{font-size:14px;color:var(--ink-500);margin-bottom:22px}
.tier-2 .tier-note,.tier-3 .tier-note{color:rgba(255,255,255,.6)}
.tier-benefits{display:grid;gap:12px;margin-bottom:28px}
.tier-benefits li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;line-height:1.7}
.tier-benefits i{color:var(--lime-700);font-size:12px;margin-top:8px;flex:none}
.tier-2 .tier-benefits i,.tier-3 .tier-benefits i{color:var(--lime-400)}
.tier-foot{margin-top:auto}
.tier-price{font-size:15px;font-weight:700;color:var(--ink-950);margin-bottom:14px}
.tier-2 .tier-price,.tier-3 .tier-price{color:#fff}
.tier-price b{font-size:30px;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.tier .btn{width:100%}
@media (max-width:1023px){
  .tier-grid{grid-template-columns:1fr;align-items:stretch}
  .tier-1,.tier-2,.tier-3{min-height:0}
}

/* ---------- 对比表 ---------- */
.compare-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-card);background:#fff;box-shadow:var(--shadow-sm)}
table.compare{width:100%;border-collapse:collapse;min-width:760px}
.compare th,.compare td{padding:18px 20px;text-align:left;font-size:15px;border-bottom:1px solid var(--line)}
.compare thead th{background:var(--bg);font-weight:700;color:var(--ink-950);font-size:15px}
.compare tbody tr:last-child td{border-bottom:0}
.compare tbody tr:nth-child(even){background:#FAFBFC}
.compare td:first-child,.compare th:first-child{font-weight:600;color:var(--ink-950)}
.compare .col-best{background:var(--soft-lime)}
.compare thead .col-best{box-shadow:inset 0 3px 0 var(--lime-400)}
.compare .yes{color:var(--lime-700);font-weight:700}
.compare .no{color:var(--ink-500)}
.compare-tip{margin-top:16px;font-size:14px;color:var(--ink-500);display:flex;gap:8px;align-items:flex-start}
.compare-tip i{color:var(--lime-700);margin-top:6px;font-size:12px}
.compare-cards{display:none;gap:16px}
@media (max-width:1023px){
  .compare-wrap{display:none}
  .compare-cards{display:grid;grid-template-columns:1fr;gap:16px}
  .cc-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:22px}
  .cc-card.best{border-color:var(--lime-400);background:var(--soft-lime)}
  .cc-card h4{font-size:17px;margin-bottom:14px}
  .cc-row{display:flex;justify-content:space-between;gap:16px;padding:10px 0;border-bottom:1px dashed var(--line);font-size:14.5px}
  .cc-row:last-child{border-bottom:0}
  .cc-row span:first-child{color:var(--ink-500)}
}

/* ---------- 限时入口 ---------- */
.rush{padding:0 0 96px}
.rush-inner{margin-top:-32px;position:relative;z-index:5;background:var(--ink-950);border:1px solid rgba(184,255,46,.24);border-radius:var(--radius-card);padding:34px 36px;display:grid;grid-template-columns:auto 1fr auto;gap:36px;align-items:center;box-shadow:var(--shadow-lg)}
.rush-count{display:flex;gap:10px}
.rush-num{width:56px;height:56px;border-radius:12px;background:var(--ink-900);border:1px solid rgba(255,255,255,.08);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px}
.rush-num b{color:var(--lime-400);font-size:22px;line-height:1;font-variant-numeric:tabular-nums;animation:breathe 1s ease-in-out infinite}
.rush-num span{font-size:11px;color:rgba(255,255,255,.5)}
@keyframes breathe{0%,100%{opacity:1}50%{opacity:.62}}
.rush-text h3{color:#fff;font-size:20px;margin-bottom:8px}
.rush-text p{color:rgba(255,255,255,.64);font-size:14.5px}
.rush-progress{margin-top:16px;display:flex;align-items:center;gap:12px}
.rush-bar{flex:1;max-width:320px;height:4px;border-radius:999px;background:rgba(255,255,255,.14);overflow:hidden}
.rush-bar i{display:block;height:100%;width:72%;border-radius:999px;background:var(--lime-400)}
.rush-progress span{font-size:13px;color:rgba(255,255,255,.6);font-variant-numeric:tabular-nums}
@media (max-width:1023px){
  .rush-inner{grid-template-columns:1fr;gap:24px;padding:28px 24px;margin-top:-24px}
  .rush-num{width:48px;height:48px}
  .rush-num b{font-size:18px}
}
@media (max-width:767px){
  .rush-num{width:44px;height:44px}
}

/* ---------- 表单与流程 ---------- */
.contact-grid{display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:start}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:32px;box-shadow:var(--shadow-md)}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;color:var(--ink-500);margin-bottom:8px;font-weight:600}
.field input,.field select,.field textarea{width:100%;height:44px;border:1px solid var(--line);border-radius:var(--radius-btn);padding:0 14px;background:#fff;font-size:15px;transition:border-color .2s ease,box-shadow .2s ease}
.field textarea{height:112px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--lime-400);box-shadow:0 0 0 3px rgba(184,255,46,.28)}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--ember-500)}
.field-error{display:none;font-size:13px;color:var(--ember-500);margin-top:6px}
.field.has-error .field-error{display:block}
.form-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:6px}
.form-hint{font-size:13px;color:var(--ink-500)}
.form-success{display:none;margin-top:18px;padding:14px 16px;border-radius:var(--radius-btn);background:var(--soft-lime);border:1px solid rgba(184,255,46,.7);color:var(--lime-700);font-size:14.5px;font-weight:600}
.form-success.show{display:flex;gap:10px;align-items:flex-start}
.steps{border:1px solid var(--line);border-radius:var(--radius-card);background:#fff;padding:28px;box-shadow:var(--shadow-sm)}
.step{display:flex;gap:16px;padding:16px 0;border-bottom:1px dashed var(--line)}
.step:last-of-type{border-bottom:0}
.step-no{width:30px;height:30px;flex:none;border-radius:999px;background:var(--ink-950);color:var(--lime-400);display:grid;place-items:center;font-size:13px;font-weight:700}
.step h4{font-size:16px;margin-bottom:4px}
.step p{font-size:14px;color:var(--ink-500)}
.steps-img{margin-top:22px;border-radius:12px;overflow:hidden}
.steps-img img{width:100%;aspect-ratio:16/10;object-fit:cover}
@media (max-width:1023px){
  .contact-grid{grid-template-columns:1fr;gap:28px}
  .form-card{padding:24px}
}

/* ---------- 资讯列表（CMS 区） ---------- */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px}
.chip{height:36px;padding:0 16px;display:inline-flex;align-items:center;border-radius:999px;border:1px solid var(--line);background:#fff;font-size:14px;color:var(--ink-700);cursor:pointer;transition:border-color .2s ease,color .2s ease,background .2s ease}
.chip:hover{border-color:var(--lime-400);color:var(--ink-950)}
.chip.active{border-color:var(--lime-400);color:var(--ink-950);font-weight:700;background:var(--soft-lime)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--lime-400)}
.news-thumb{display:block;overflow:hidden;background:#EEF1F4}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{padding:20px 22px 14px;flex:1}
.news-title{font-size:18px;line-height:1.5;margin:12px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-title a:hover{color:var(--lime-700)}
.news-desc{font-size:14px;color:var(--ink-500);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;justify-content:space-between;padding:14px 22px 18px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-500);font-variant-numeric:tabular-nums}
.news-arrow{width:28px;height:28px;border-radius:999px;display:grid;place-items:center;background:var(--bg);color:var(--ink-700);font-size:12px;transition:background .2s ease,color .2s ease,transform .2s ease}
.news-card:hover .news-arrow{background:var(--lime-400);color:var(--ink-950);transform:translateX(4px)}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 11px;border-radius:999px;font-size:12px;font-weight:600;line-height:1}
.badge-violet{border:1px solid var(--violet-500);color:var(--violet-500);background:rgba(108,76,255,.06)}
.badge-lime{background:var(--lime-400);color:var(--ink-950)}
.badge-ember{background:var(--ember-500);color:#fff}
.badge-gray{background:var(--bg);color:var(--ink-500);border:1px solid var(--line)}
.empty-state{background:#fff;border:1px dashed var(--line);border-radius:var(--radius-card);padding:64px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px}
.empty-state i{font-size:34px;color:var(--ink-500)}
.empty-state p{color:var(--ink-500);font-size:15px}
@media (max-width:1023px){.news-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:767px){.news-grid{grid-template-columns:1fr}}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px 4px;min-height:56px;background:transparent;border:0;cursor:pointer;text-align:left;font-size:16px;font-weight:700;color:var(--ink-950);transition:color .2s ease}
.faq-q:hover{color:var(--lime-700)}
.faq-ico{width:26px;height:26px;flex:none;border-radius:999px;border:1px solid var(--line);display:grid;place-items:center;font-size:12px;color:var(--ink-700);transition:transform .24s ease,background .24s ease,color .24s ease,border-color .24s ease}
.faq-item.open .faq-ico{background:var(--lime-400);border-color:var(--lime-400);color:var(--ink-950);transform:rotate(135deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease-out}
.faq-a-inner{padding:0 44px 22px 4px;font-size:15px;line-height:1.85;color:var(--ink-500)}
@media (max-width:767px){.faq-a-inner{padding-right:12px}}

/* ---------- 底部 CTA ---------- */
.cta-band{background:var(--ink-950);border-radius:var(--radius-card);padding:44px 48px;display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center;position:relative;overflow:hidden;
  background-image:linear-gradient(100deg,rgba(11,15,20,.95),rgba(11,15,20,.82)),url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center}
.cta-band h3{color:#fff;font-size:26px;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.68);font-size:15.5px;max-width:56em}
@media (max-width:1023px){.cta-band{grid-template-columns:1fr;padding:32px 26px}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-950);color:rgba(255,255,255,.68);padding-top:72px;margin-top:96px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.3fr;gap:40px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand .brand-mark{background:rgba(184,255,46,.14)}
.footer-brand span{color:#fff;font-size:17px;font-weight:800}
.footer-desc{font-size:14px;color:rgba(255,255,255,.6);max-width:32em}
.footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px}
.footer-links li{margin-bottom:12px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.68);transition:color .2s ease}
.footer-links a:hover{color:var(--lime-400)}
.footer-contact li{display:flex;gap:10px;font-size:14px;margin-bottom:14px;align-items:flex-start;color:rgba(255,255,255,.68)}
.footer-contact i{color:var(--lime-400);margin-top:6px;font-size:12px}
.footer-bottom{margin-top:52px;border-top:1px solid rgba(255,255,255,.1);padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.48)}
.footer-bottom a:hover{color:var(--lime-400)}
@media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:767px){.footer-grid{grid-template-columns:1fr}.site-footer{padding-top:52px;margin-top:56px}}

/* roulang page: article */
:root{
  --ink-950:#0B0F14;
  --ink-900:#131922;
  --ink-700:#2A2F36;
  --ink-500:#6B7280;
  --line:#E7EAEE;
  --bg:#F6F7F9;
  --card:#FFFFFF;
  --lime-400:#B8FF2E;
  --lime-700:#4D7A00;
  --violet-500:#6C4CFF;
  --ember-500:#FF6A2B;
  --r-btn:10px;
  --r-card:16px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-sm:0 1px 2px rgba(11,15,20,.06);
  --sh-md:0 8px 24px rgba(11,15,20,.08);
  --sh-lg:0 20px 48px rgba(11,15,20,.18);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink-700);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;background:none;border:0;color:inherit}
input,textarea,select{font:inherit;color:inherit}
ul,ol{margin:0}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--lime-400);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}
@media(min-width:768px){.container{padding:0 24px}}
@media(min-width:1024px){.container{padding:0 32px}}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--sh-sm)}
.header-inner{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:32px;height:32px;border-radius:9px;background:var(--ink-950);color:var(--lime-400);display:flex;align-items:center;justify-content:center;font-size:14px}
.brand-text{font-weight:800;font-size:18px;color:var(--ink-950);letter-spacing:-.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:2px}
.nav-link{position:relative;padding:9px 12px;border-radius:8px;font-size:15px;font-weight:500;color:var(--ink-700);transition:color .18s,background .18s;white-space:nowrap}
.nav-link:hover{color:var(--ink-950);background:var(--bg)}
.nav-link.active{color:var(--ink-950);font-weight:700}
.nav-link.active::after{content:"";position:absolute;left:12px;right:12px;bottom:-2px;height:2px;border-radius:2px;background:var(--lime-400)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-pill);background:var(--bg);transition:border-color .2s,background .2s}
.search-box:focus-within{border-color:var(--lime-400);background:#fff}
.search-box i{color:var(--ink-500);font-size:13px}
.search-box input{border:0;background:transparent;outline:none;width:150px;font-size:14px}
.search-box input::placeholder{color:var(--ink-500)}
.menu-toggle{display:none;width:42px;height:42px;border-radius:var(--r-btn);border:1px solid var(--line);color:var(--ink-900);align-items:center;justify-content:center;transition:border-color .2s,background .2s}
.menu-toggle:hover{border-color:var(--lime-400)}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:#fff}
.mobile-drawer.open{display:block}
.mobile-nav{display:flex;flex-direction:column;padding:6px 0 16px}
.mobile-nav a{padding:14px 6px;font-size:16px;border-bottom:1px solid var(--line);color:var(--ink-700)}
.mobile-nav a:last-child{border-bottom:0}
.mobile-nav a.active{color:var(--ink-950);font-weight:700;border-left:3px solid var(--lime-400);padding-left:14px}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:42px;padding:0 20px;border-radius:var(--r-btn);font-size:15px;font-weight:700;border:1px solid transparent;transition:background .18s,color .18s,border-color .18s,transform .12s;white-space:nowrap}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--lime-400);color:var(--ink-950)}
.btn-primary:hover{background:var(--lime-700);color:#fff}
.btn-ghost{border-color:var(--line);background:#fff;color:var(--ink-700)}
.btn-ghost:hover{border-color:var(--lime-400);background:var(--lime-400);color:var(--ink-950)}
.btn-dark-lime{background:var(--ink-950);color:var(--lime-400);border-color:rgba(184,255,46,.55)}
.btn-dark-lime:hover{background:var(--lime-400);color:var(--ink-950)}
.btn-sm{height:36px;padding:0 16px;font-size:14px}

/* ---------- Badges ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--r-pill);font-size:13px;font-weight:700;line-height:1}
.badge-violet{color:var(--violet-500);border:1px solid rgba(108,76,255,.4);background:rgba(108,76,255,.08)}
.badge-lime{color:var(--lime-700);border:1px solid rgba(77,122,0,.35);background:rgba(184,255,46,.22)}
.badge-ember{color:#fff;background:var(--ember-500)}
.badge-muted{color:var(--ink-500);border:1px solid var(--line);background:#fff}

/* ---------- Article hero ---------- */
.article-hero{position:relative;background:var(--ink-950);overflow:hidden}
.article-hero .hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.3}
.article-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,15,20,.5) 0%,rgba(11,15,20,.93) 100%)}
.article-hero-inner{position:relative;z-index:2;padding:22px 0 46px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.62);margin-bottom:26px}
.breadcrumb a{color:rgba(255,255,255,.62);transition:color .18s}
.breadcrumb a:hover{color:var(--lime-400)}
.breadcrumb .sep{color:rgba(255,255,255,.3)}
.breadcrumb .current{color:rgba(255,255,255,.9);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-hero h1{font-size:25px;line-height:1.38;font-weight:800;color:#fff;letter-spacing:-.01em;margin:16px 0 0;max-width:880px}
@media(min-width:768px){.article-hero h1{font-size:32px}}
@media(min-width:1024px){.article-hero h1{font-size:36px}}
.title-rule{width:48px;height:3px;border-radius:2px;background:var(--lime-400);margin:22px 0 20px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;font-size:14px;color:rgba(255,255,255,.68)}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--lime-400);font-size:13px}
.hero-strip{height:4px;background:linear-gradient(90deg,var(--lime-400) 0%,var(--lime-400) 32%,rgba(184,255,46,.15) 32%,rgba(184,255,46,.15) 100%)}

/* ---------- Layout ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:32px;padding:44px 0 64px}
@media(min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,780px) 300px;gap:48px;padding:56px 0 88px}
}
.article-main{min-width:0}
.article-panel{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-sm);padding:24px 20px}
@media(min-width:768px){.article-panel{padding:40px 44px}}

/* ---------- Article body ---------- */
.article-body{font-size:16.5px;line-height:1.9;color:var(--ink-700);word-wrap:break-word}
@media(min-width:768px){.article-body{font-size:17.5px}}
.article-body p{margin:0 0 1.2em}
.article-body h2{position:relative;font-size:21px;font-weight:800;color:var(--ink-950);line-height:1.5;margin:44px 0 16px;padding-left:15px}
@media(min-width:768px){.article-body h2{font-size:23px}}
.article-body h2::before{content:"";position:absolute;left:0;top:.26em;bottom:.26em;width:4px;border-radius:2px;background:var(--lime-400)}
.article-body h3{font-size:18.5px;font-weight:700;color:var(--ink-950);margin:30px 0 12px}
.article-body h4{font-size:16.5px;font-weight:700;color:var(--ink-950);margin:22px 0 10px}
.article-body a{color:var(--ink-700);text-decoration:underline;text-underline-offset:3px;text-decoration-color:var(--lime-400);transition:color .18s}
.article-body a:hover{color:var(--lime-700)}
.article-body ul{list-style:none;padding-left:0;margin:0 0 1.2em}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:.5em}
.article-body ul li::before{content:"";position:absolute;left:0;top:.7em;width:8px;height:8px;border-radius:2px;background:var(--lime-400)}
.article-body ol{padding-left:1.5em;margin:0 0 1.2em}
.article-body ol li{margin-bottom:.5em}
.article-body blockquote{margin:24px 0;padding:18px 22px;background:var(--bg);border-left:3px solid var(--lime-400);border-radius:0 12px 12px 0;font-size:16px;color:var(--ink-700)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:24px auto;width:auto;max-width:100%;height:auto}
.article-body figure{margin:24px 0}
.article-body figcaption{margin-top:10px;text-align:center;font-size:13px;color:var(--ink-500)}
.article-body table{display:block;width:100%;overflow-x:auto;border-collapse:collapse;font-size:15px;margin:24px 0}
.article-body th,.article-body td{border-bottom:1px solid var(--line);padding:12px 14px;text-align:left;white-space:nowrap}
.article-body thead th{background:var(--bg);font-weight:700;color:var(--ink-950)}
.article-body tbody tr:nth-child(even){background:#FAFBFC}
.article-body pre{overflow-x:auto;background:var(--ink-950);color:#DDE3EA;padding:18px 20px;border-radius:12px;font-size:14px;line-height:1.7;margin:22px 0}
.article-body code{background:var(--bg);padding:2px 6px;border-radius:6px;font-size:.94em;color:var(--ink-950)}
.article-body pre code{background:transparent;padding:0;color:inherit}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}

/* ---------- Empty state ---------- */
.empty-state{text-align:center;padding:56px 20px;color:var(--ink-500)}
.empty-state i{font-size:38px;color:var(--line);display:block;margin-bottom:16px}
.empty-state p{font-size:17px;color:var(--ink-700);margin-bottom:20px;font-weight:600}

/* ---------- Tags & post nav ---------- */
.article-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:28px}
.article-tags .label{font-size:14px;color:var(--ink-500);margin-right:2px}
.tag{display:inline-flex;align-items:center;height:30px;padding:0 13px;border-radius:var(--r-pill);border:1px solid var(--line);background:#fff;font-size:13px;color:var(--ink-700);transition:border-color .18s,color .18s}
.tag:hover{border-color:var(--lime-400);color:var(--ink-950)}
.post-nav{display:grid;gap:16px;margin-top:26px}
@media(min-width:640px){.post-nav{grid-template-columns:1fr 1fr}}
.post-nav a{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:18px 20px;transition:border-color .2s,transform .2s,box-shadow .2s}
.post-nav a:hover{border-color:var(--lime-400);transform:translateY(-4px);box-shadow:var(--sh-md)}
.post-nav .pn-label{font-size:13px;color:var(--ink-500);display:flex;align-items:center;gap:6px;margin-bottom:8px}
.post-nav .pn-title{font-size:15px;font-weight:700;color:var(--ink-950);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- Sidebar ---------- */
.article-side{display:flex;flex-direction:column;gap:22px}
@media(min-width:1024px){.article-side{position:sticky;top:96px;align-self:start}}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:20px;box-shadow:var(--sh-sm)}
.side-title{display:flex;align-items:center;gap:9px;font-size:15px;font-weight:800;color:var(--ink-950);margin-bottom:14px}
.side-title::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--lime-400)}
.side-list{list-style:none;padding:0;display:flex;flex-direction:column}
.side-list li{border-bottom:1px solid var(--line)}
.side-list li:last-child{border-bottom:0}
.side-list a{display:flex;align-items:flex-start;gap:10px;padding:11px 0;font-size:14px;color:var(--ink-700);transition:color .18s}
.side-list a:hover{color:var(--lime-700)}
.side-list .idx{font-size:12px;font-weight:800;color:var(--ink-500);font-variant-numeric:tabular-nums;padding-top:2px;min-width:18px}
.side-cta{background:var(--ink-900);border:1px solid rgba(184,255,46,.28);border-radius:var(--r-card);padding:24px 20px;color:#C8D0D9}
.side-cta h3{color:#fff;font-size:17px;font-weight:800;line-height:1.5;margin-bottom:10px}
.side-cta p{font-size:14px;line-height:1.8;margin-bottom:18px;color:#9AA3AE}
.side-cta .btn{width:100%}

/* ---------- Sections ---------- */
.section{padding:56px 0}
@media(min-width:768px){.section{padding:72px 0}}
@media(min-width:1024px){.section{padding:88px 0}}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:28px}
.section-title{font-size:22px;font-weight:800;color:var(--ink-950);letter-spacing:-.01em;display:flex;align-items:center;gap:10px}
@media(min-width:768px){.section-title{font-size:26px}}
.section-title::before{content:"";width:5px;height:20px;border-radius:3px;background:var(--lime-400)}
.section-sub{font-size:15px;color:var(--ink-500);margin-top:8px}
.alt-bg{background:linear-gradient(180deg,#fff 0%,var(--bg) 100%)}

/* ---------- Cards ---------- */
.card-grid{display:grid;gap:22px;grid-template-columns:1fr}
@media(min-width:768px){.card-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.card-grid{grid-template-columns:repeat(3,1fr)}}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;display:flex;flex-direction:column;transition:border-color .2s,transform .2s,box-shadow .2s}
.card:hover{border-color:var(--lime-400);transform:translateY(-4px);box-shadow:var(--sh-md)}
.card-thumb{aspect-ratio:16/9;background:#EEF1F4;overflow:hidden}
.card-thumb img{width:100%;height:100%;object-fit:cover}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{font-size:17px;font-weight:700;color:var(--ink-950);line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-desc{font-size:14px;color:var(--ink-500);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{margin-top:auto;padding-top:12px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-500)}
.card-foot i{transition:transform .2s}
.card:hover .card-foot i{transform:translateX(4px);color:var(--lime-700)}

/* ---------- CTA band ---------- */
.cta-band{background:var(--ink-950);border-radius:var(--r-lg);padding:32px 24px;display:grid;gap:24px;align-items:center;position:relative;overflow:hidden}
@media(min-width:900px){.cta-band{padding:44px 44px;grid-template-columns:1.5fr 1fr}}
.cta-band::before{content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;background:radial-gradient(circle,rgba(184,255,46,.18) 0%,rgba(184,255,46,0) 70%)}
.cta-band h2{color:#fff;font-size:22px;font-weight:800;line-height:1.5;margin-bottom:12px;position:relative}
@media(min-width:768px){.cta-band h2{font-size:26px}}
.cta-band p{color:#9AA3AE;font-size:15px;line-height:1.85;position:relative}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink-950);color:#9AA3AE;padding:56px 0 24px;margin-top:8px}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr}}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:18px;margin-bottom:14px}
.footer-brand .brand-mark{background:var(--lime-400);color:var(--ink-950)}
.footer-desc{font-size:14px;line-height:1.85;color:#8B949F;max-width:380px}
.footer-title{font-size:15px;color:#fff;font-weight:700;margin-bottom:14px}
.footer-links{list-style:none;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:#9AA3AE;transition:color .18s}
.footer-links a:hover{color:var(--lime-400)}
.footer-contact{list-style:none;padding:0;display:flex;flex-direction:column;gap:10px;font-size:14px;line-height:1.7}
.footer-contact i{color:var(--lime-400);margin-right:8px;width:16px;text-align:center}
.footer-contact a{color:var(--lime-400)}
.footer-contact a:hover{text-decoration:underline}
.footer-bottom{margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;font-size:12px;color:var(--ink-500)}

@media(max-width:1023px){
  .nav-links,.search-box{display:none}
  .menu-toggle{display:inline-flex}
  .header-inner{gap:12px}
}
@media(max-width:520px){
  .brand-text{font-size:16px}
  .header-actions .btn-primary{padding:0 14px;font-size:14px}
  .article-hero-inner{padding:18px 0 36px}
  .article-meta{gap:8px 16px;font-size:13px}
}

/* roulang page: category1 */
:root{
  --ink-950:#0B0F14;
  --ink-900:#131922;
  --ink-700:#2A2F36;
  --ink-500:#6B7280;
  --line:#E7EAEE;
  --bg:#F6F7F9;
  --card:#FFFFFF;
  --lime-400:#B8FF2E;
  --lime-700:#4D7A00;
  --lime-soft:#F2FFD6;
  --violet-500:#6C4CFF;
  --ember-500:#FF6A2B;
  --r-btn:10px;
  --r-card:16px;
  --r-hero:20px;
  --sh-sm:0 1px 2px rgba(11,15,20,.06);
  --sh-md:0 8px 24px rgba(11,15,20,.08);
  --sh-lg:0 20px 48px rgba(11,15,20,.18);
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;font-family:var(--font);font-size:16px;line-height:1.78;
  color:var(--ink-700);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
h1,h2,h3,h4{margin:0;color:var(--ink-950);font-weight:800;letter-spacing:-.01em;line-height:1.3;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--lime-400);outline-offset:2px;}

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

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);box-shadow:var(--sh-sm);
}
.header-inner{display:flex;align-items:center;gap:20px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;font-weight:800;font-size:17px;color:var(--ink-950);}
.brand-mark{
  width:32px;height:32px;border-radius:9px;background:var(--ink-950);color:var(--lime-400);
  display:grid;place-items:center;font-size:14px;
}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:6px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:38px;padding:0 12px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--ink-700);
  transition:color .18s,background-color .18s;
}
.nav-link:hover{color:var(--ink-950);background:var(--bg);}
.nav-link.active{color:var(--lime-700);font-weight:700;}
.nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--lime-400);
}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.search-box{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 16px;
  border:1px solid var(--line);border-radius:999px;background:var(--bg);
  transition:border-color .18s,background-color .18s,box-shadow .18s;
}
.search-box i{font-size:13px;color:var(--ink-500);}
.search-box input{
  width:158px;border:0;background:transparent;outline:none;font-size:14px;
}
.search-box input::placeholder{color:#9AA1AB;}
.search-box:focus-within{border-color:var(--lime-400);background:#fff;box-shadow:0 0 0 3px rgba(184,255,46,.22);}
.menu-toggle{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  color:var(--ink-950);font-size:16px;
}
.menu-toggle:hover{background:var(--bg);}

/* ============ 按钮 ============ */
.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:700;cursor:pointer;
  transition:background-color .18s,color .18s,border-color .18s,transform .18s,box-shadow .18s;
}
.btn:active{transform:translateY(1px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-primary{background:var(--lime-400);color:var(--ink-950);}
.btn-primary:hover{background:var(--lime-700);color:#fff;}
.btn-ghost{background:transparent;border-color:rgba(184,255,46,.6);color:var(--lime-400);}
.btn-ghost:hover{background:var(--lime-400);color:var(--ink-950);}
.btn-outline{background:#fff;border-color:var(--line);color:var(--ink-950);}
.btn-outline:hover{border-color:var(--lime-400);background:var(--lime-soft);}
.btn:disabled,.btn.is-disabled{opacity:.4;cursor:not-allowed;}

/* ============ 通用标签 ============ */
.tag{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;
  border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.02em;white-space:nowrap;
}
.tag-lime{background:var(--lime-soft);color:var(--lime-700);}
.tag-violet{background:rgba(108,76,255,.09);color:var(--violet-500);border:1px solid rgba(108,76,255,.24);}
.tag-ember{background:var(--ember-500);color:#fff;transform:rotate(-3deg);}
.tag-gray{background:var(--bg);color:var(--ink-500);border:1px solid var(--line);}

/* ============ 分类 Hero ============ */
.cat-hero{
  position:relative;color:#fff;padding:64px 0 58px;
  background-image:linear-gradient(rgba(11,15,20,.86),rgba(11,15,20,.94)),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.6);margin-bottom:22px;}
.breadcrumb a{transition:color .18s;}
.breadcrumb a:hover{color:var(--lime-400);}
.breadcrumb .current{color:rgba(255,255,255,.9);}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;margin-bottom:20px;
  border:1px solid rgba(184,255,46,.35);border-radius:999px;
  font-size:13px;font-weight:600;color:var(--lime-400);background:rgba(184,255,46,.08);
}
.dot{width:8px;height:8px;border-radius:50%;background:var(--lime-400);display:inline-block;animation:pulse 2s infinite;}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(184,255,46,.55);}
  70%{box-shadow:0 0 0 10px rgba(184,255,46,0);}
  100%{box-shadow:0 0 0 0 rgba(184,255,46,0);}
}
.cat-hero h1{
  color:#fff;font-size:clamp(28px,4vw,42px);line-height:1.25;max-width:860px;
}
.cat-hero h1 em{font-style:normal;color:var(--lime-400);}
.hero-sub{
  max-width:720px;margin-top:18px;font-size:17px;line-height:1.8;color:rgba(255,255,255,.74);
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:36px;margin-top:44px;padding-top:26px;
  border-top:1px solid rgba(255,255,255,.12);
}
.hero-stats li{display:flex;flex-direction:column;gap:4px;}
.hero-stats strong{
  font-size:20px;font-weight:800;color:var(--lime-400);font-variant-numeric:tabular-nums;letter-spacing:-.01em;
}
.hero-stats span{font-size:13px;color:rgba(255,255,255,.6);}

/* ============ 板块 ============ */
.section{padding:80px 0;}
.section-soft{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:38px;}
.section-head .kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  color:var(--lime-700);letter-spacing:.08em;margin-bottom:12px;
}
.section-head .kicker::before{content:"";width:24px;height:2px;border-radius:2px;background:var(--lime-400);}
.section-head h2{font-size:clamp(22px,3vw,30px);}
.section-head p{margin-top:12px;font-size:16px;color:var(--ink-500);}

/* ============ 时间轴 ============ */
.timeline{display:grid;gap:14px;}
.tl-item{
  display:grid;grid-template-columns:160px 1fr;gap:26px;align-items:start;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 26px;box-shadow:var(--sh-sm);
  transition:border-color .2s,box-shadow .2s,transform .2s;
}
.tl-item:hover{border-color:var(--lime-400);box-shadow:var(--sh-md);transform:translateY(-2px);}
.tl-time{display:flex;flex-direction:column;gap:10px;}
.tl-hour{
  font-size:24px;font-weight:800;color:var(--ink-950);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;line-height:1;
}
.tl-body h3{font-size:17px;margin-bottom:8px;}
.tl-body p{font-size:15px;color:var(--ink-500);line-height:1.8;}

/* ============ 方向卡片 ============ */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.tile{
  display:flex;flex-direction:column;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-sm);transition:border-color .2s,box-shadow .2s,transform .2s;
}
.tile:hover{border-color:var(--lime-400);box-shadow:var(--sh-md);transform:translateY(-4px);}
.tile-img{position:relative;background:#EEF1F4;}
.tile-img img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.tile-img .tag{position:absolute;left:12px;top:12px;}
.tile-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.tile-body h3{font-size:17px;}
.tile-body p{font-size:14px;color:var(--ink-500);line-height:1.78;flex:1;}
.tile-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--lime-700);
  transition:gap .2s,color .2s;
}
.tile:hover .tile-more{gap:10px;}

/* ============ 热度榜 ============ */
.rank-list{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-sm);}
.rank-item{
  display:grid;grid-template-columns:54px 1fr 78px;gap:20px;align-items:center;
  padding:20px 26px;border-bottom:1px solid var(--line);
  transition:background-color .18s;
}
.rank-item:last-child{border-bottom:0;}
.rank-item:hover{background:#FBFCFD;}
.rank-no{
  font-size:24px;font-weight:800;color:var(--ink-950);font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
}
.rank-item:nth-child(1) .rank-no{color:var(--lime-700);}
.rank-main h3{font-size:16px;margin-bottom:10px;}
.bar{height:6px;border-radius:999px;background:var(--bg);overflow:hidden;}
.bar span{display:block;height:100%;border-radius:999px;background:var(--lime-400);}
.rank-val{
  text-align:right;font-size:15px;font-weight:800;color:var(--ink-950);
  font-variant-numeric:tabular-nums;
}
.rank-pct{font-size:12px;color:var(--ink-500);font-weight:500;}

/* ============ 流程步骤 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step;}
.step{
  position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 22px 24px;box-shadow:var(--sh-sm);overflow:hidden;
  transition:border-color .2s,box-shadow .2s,transform .2s;
}
.step::before{
  content:"";position:absolute;left:0;top:0;width:3px;height:56px;background:var(--lime-400);
}
.step:hover{border-color:var(--lime-400);box-shadow:var(--sh-md);transform:translateY(-3px);}
.step-no{
  display:block;font-size:30px;font-weight:800;color:rgba(184,255,46,.9);
  font-variant-numeric:tabular-nums;line-height:1;margin-bottom:14px;letter-spacing:-.03em;
}
.step h3{font-size:16px;margin-bottom:8px;}
.step p{font-size:14px;color:var(--ink-500);line-height:1.8;}

/* ============ FAQ ============ */
.faq-list{
  max-width:880px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-sm);
}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 26px;text-align:left;font-size:16px;font-weight:700;color:var(--ink-950);
  transition:background-color .18s;
}
.faq-q:hover{background:#FBFCFD;}
.faq-q i{
  flex-shrink:0;width:26px;height:26px;border-radius:999px;border:1px solid var(--line);
  display:grid;place-items:center;font-size:11px;color:var(--ink-700);
  transition:transform .24s,background-color .24s,color .24s,border-color .24s;
}
.faq-item.open .faq-q i{transform:rotate(135deg);background:var(--lime-400);border-color:var(--lime-400);color:var(--ink-950);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease-out;}
.faq-item.open .faq-a{max-height:340px;}
.faq-a-inner{padding:0 26px 22px 26px;font-size:15px;line-height:1.85;color:var(--ink-500);}

/* ============ CTA 区块 ============ */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:34px;flex-wrap:wrap;
  background:var(--ink-950);border-radius:var(--r-hero);padding:46px 48px;color:#fff;
  background-image:radial-gradient(rgba(184,255,46,.09) 1px,transparent 1px);
  background-size:16px 16px;
}
.cta-band h2{color:#fff;font-size:clamp(20px,2.6vw,26px);margin-bottom:10px;}
.cta-band p{font-size:15px;color:rgba(255,255,255,.7);max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-950);color:rgba(255,255,255,.7);padding:64px 0 0;margin-top:80px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:46px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--lime-400);color:var(--ink-950);}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.58);}
.footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;}
.footer-links li+li,.footer-contact li+li{margin-top:11px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.64);transition:color .18s,padding-left .18s;}
.footer-links a:hover{color:var(--lime-400);padding-left:4px;}
.footer-contact li{display:flex;gap:9px;align-items:flex-start;font-size:14px;color:rgba(255,255,255,.64);line-height:1.7;}
.footer-contact i{color:var(--lime-400);font-size:12px;margin-top:5px;}
.footer-contact a{color:var(--lime-400);}
.footer-contact a:hover{text-decoration:underline;}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  border-top:1px solid rgba(255,255,255,.1);padding:20px 0 30px;font-size:12px;color:rgba(255,255,255,.45);
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .nav-links{
    position:fixed;left:0;right:0;top:68px;flex-direction:column;align-items:stretch;gap:0;
    padding:10px 16px 18px;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--sh-md);
    transform:translateY(-10px);opacity:0;pointer-events:none;transition:transform .22s,opacity .22s;
  }
  .nav-links.open{transform:translateY(0);opacity:1;pointer-events:auto;}
  .nav-link{height:48px;padding:0 14px;border-radius:0;border-left:3px solid transparent;}
  .nav-link.active{background:var(--bg);border-left-color:var(--lime-400);}
  .nav-link.active::after{display:none;}
  .search-box{display:none;}
  .menu-toggle{display:grid;place-items:center;}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:34px;}
  .section{padding:66px 0;}
}
@media (max-width:768px){
  .grid-4{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .tl-item{grid-template-columns:1fr;gap:14px;padding:20px;}
  .tl-time{flex-direction:row;align-items:center;gap:12px;}
  .rank-item{grid-template-columns:44px 1fr;gap:14px;padding:18px;}
  .rank-val{grid-column:2;text-align:left;}
  .hero-stats{gap:22px;margin-top:34px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 24px;}
  .footer-grid{grid-template-columns:1fr;}
  .section{padding:54px 0;}
}
@media (max-width:520px){
  body .container{padding-left:16px;padding-right:16px;}
  .brand-name{font-size:15px;}
  .hero-cta .btn{width:100%;}
  .cat-hero{padding:48px 0 44px;}
  .cat-hero h1{font-size:26px;}
  .hero-sub{font-size:15px;}
  .faq-q{padding:17px 18px;font-size:15px;}
  .faq-a-inner{padding:0 18px 18px;}
  .section-head h2{font-size:21px;}
}

/* roulang page: category3 */
:root{
  --ink-950:#0B0F14;
  --ink-900:#131922;
  --ink-700:#2A2F36;
  --ink-500:#6B7280;
  --line:#E7EAEE;
  --bg:#F6F7F9;
  --card:#FFFFFF;
  --lime-400:#B8FF2E;
  --lime-700:#4D7A00;
  --lime-soft:#F2FFD6;
  --violet-500:#6C4CFF;
  --ember-500:#FF6A2B;
  --radius-btn:10px;
  --radius-card:16px;
  --radius-hero:20px;
  --shadow-sm:0 1px 2px rgba(11,15,20,.06);
  --shadow-md:0 8px 24px rgba(11,15,20,.08);
  --shadow-lg:0 20px 48px rgba(11,15,20,.18);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-700);
  background:var(--bg);
  font-weight:400;
}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-0.01em;color:var(--ink-950);line-height:1.35}
p{margin:0}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer;border:0;background:none}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--ink-700)}
ul{margin:0;padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
:focus-visible{outline:2px solid var(--lime-400);outline-offset:2px}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-sm);
}
.header-inner{
  display:flex;align-items:center;gap:24px;
  height:68px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:32px;height:32px;border-radius:9px;background:var(--ink-950);
  display:flex;align-items:center;justify-content:center;
  color:var(--lime-400);font-size:15px;
}
.brand-text{font-size:17px;font-weight:800;color:var(--ink-950);letter-spacing:-0.01em;white-space:nowrap}
.nav-links{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 14px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--ink-700);
  transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--ink-950);background:var(--bg)}
.nav-link.active{color:var(--ink-950);font-weight:700}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;
  border-radius:999px;background:var(--lime-400);
}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.search-box{
  display:flex;align-items:center;gap:8px;
  height:40px;padding:0 16px;border-radius:999px;
  border:1px solid var(--line);background:var(--bg);
  transition:border-color .18s ease,background .18s ease;
}
.search-box:focus-within{border-color:var(--lime-400);background:#fff}
.search-box i{color:var(--ink-500);font-size:13px}
.search-box input{border:0;background:transparent;outline:none;width:150px;font-size:14px}
.search-box input::placeholder{color:var(--ink-500)}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);background:#fff;color:var(--ink-950);
  align-items:center;justify-content:center;font-size:17px;
}
.menu-toggle:hover{border-color:var(--lime-400)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;white-space:nowrap;
  transition:transform .16s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--lime-400);color:var(--ink-950)}
.btn-primary:hover{background:var(--lime-700);color:#fff}
.btn-outline{border:1px solid var(--line);background:#fff;color:var(--ink-950)}
.btn-outline:hover{border-color:var(--lime-400);background:var(--lime-soft)}
.btn-ghost{border:1px solid rgba(184,255,46,.55);color:var(--lime-400);background:transparent}
.btn-ghost:hover{background:var(--lime-400);color:var(--ink-950)}
.btn-block{width:100%}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px}
.btn[disabled],.btn.is-disabled{
  background:#E9ECF0;color:#98A2B0;cursor:not-allowed;pointer-events:none;
}
.header-actions .btn{height:40px;padding:0 18px;font-size:14px}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--ink-950);
  padding:64px 0 72px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  opacity:.34;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:4px;
  background:var(--lime-400);
  transform:skewY(-1.6deg);transform-origin:left;
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.35fr .95fr;gap:48px;align-items:center}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.6);margin-bottom:18px}
.breadcrumb a:hover{color:var(--lime-400)}
.breadcrumb .sep{color:rgba(255,255,255,.35)}
.breadcrumb .cur{color:rgba(255,255,255,.9)}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;border-radius:999px;
  background:rgba(108,76,255,.18);border:1px solid rgba(108,76,255,.6);
  color:#CFC2FF;font-size:13px;font-weight:600;margin-bottom:20px;
}
.page-hero h1{
  font-size:42px;line-height:1.25;color:#fff;letter-spacing:-0.02em;
}
.page-hero h1 em{font-style:normal;color:var(--lime-400)}
.hero-sub{
  margin-top:18px;max-width:620px;
  font-size:17px;line-height:1.8;color:rgba(255,255,255,.72);
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-side{
  background:rgba(19,25,34,.86);
  border:1px solid rgba(255,255,255,.1);
  border-radius:var(--radius-hero);
  padding:24px;backdrop-filter:blur(2px);
}
.hero-side h3{color:#fff;font-size:16px;margin-bottom:16px;display:flex;align-items:center;gap:8px}
.hero-side h3 i{color:var(--lime-400);font-size:14px}
.hero-side ul li{
  display:flex;align-items:flex-start;gap:10px;
  padding:11px 0;border-bottom:1px dashed rgba(255,255,255,.12);
  font-size:14.5px;color:rgba(255,255,255,.78);line-height:1.7;
}
.hero-side ul li:last-child{border-bottom:0;padding-bottom:0}
.hero-side ul li i{color:var(--lime-400);font-size:12px;margin-top:8px}

/* ---------- 统计条 ---------- */
.stat-bar{margin-top:-32px;position:relative;z-index:5}
.stat-card{
  background:#fff;border-radius:var(--radius-card);
  box-shadow:var(--shadow-md);border:1px solid var(--line);
  display:grid;grid-template-columns:repeat(4,1fr);
  overflow:hidden;
}
.stat-item{padding:22px 24px;border-right:1px solid var(--line)}
.stat-item:last-child{border-right:0}
.stat-value{
  font-size:30px;font-weight:800;color:var(--ink-950);
  font-variant-numeric:tabular-nums;line-height:1.1;
}
.stat-value span{font-size:15px;font-weight:600;color:var(--ink-500);margin-left:4px}
.stat-label{margin-top:6px;font-size:13.5px;color:var(--ink-500)}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section.alt{background:#fff}
.section-head{max-width:720px;margin-bottom:40px}
.section-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;color:var(--lime-700);
  background:var(--lime-soft);border-radius:999px;padding:5px 14px;margin-bottom:16px;
}
.section-title{font-size:30px;letter-spacing:-0.02em}
.section-desc{margin-top:14px;font-size:16px;color:var(--ink-500);line-height:1.85}

/* ---------- 礼包卡墙 ---------- */
.gift-toolbar{
  display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:30px;
}
.chip{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border-radius:999px;border:1px solid var(--line);background:#fff;
  font-size:14px;font-weight:600;color:var(--ink-700);
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.chip:hover{border-color:var(--lime-400)}
.chip.active{border-color:var(--lime-400);background:var(--lime-soft);color:var(--ink-950)}
.gift-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.gift-card{
  position:relative;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.gift-card:hover{transform:translateY(-4px);border-color:var(--lime-400);box-shadow:var(--shadow-md)}
.gift-cover{position:relative;aspect-ratio:16/10;background:#EEF1F4;overflow:hidden}
.gift-cover img{width:100%;height:100%;object-fit:cover}
.gift-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,15,20,0) 45%,rgba(11,15,20,.55) 100%);
}
.gift-hot{
  position:absolute;top:12px;right:12px;z-index:3;
  background:var(--ember-500);color:#fff;font-size:12px;font-weight:700;
  padding:4px 12px;border-radius:999px;transform:rotate(-4deg);
  box-shadow:0 6px 14px rgba(255,106,43,.35);
}
.gift-stock{
  position:absolute;left:12px;bottom:12px;z-index:3;
  background:rgba(11,15,20,.8);border:1px solid rgba(184,255,46,.45);
  color:var(--lime-400);font-size:12.5px;font-weight:700;
  padding:4px 12px;border-radius:999px;
}
.gift-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.gift-type{
  display:inline-flex;align-items:center;align-self:flex-start;
  font-size:12px;font-weight:700;color:var(--violet-500);
  border:1px solid rgba(108,76,255,.35);background:rgba(108,76,255,.07);
  padding:3px 10px;border-radius:999px;margin-bottom:12px;
}
.gift-name{font-size:18px;font-weight:800;color:var(--ink-950);line-height:1.45}
.gift-desc{margin-top:10px;font-size:14px;color:var(--ink-500);line-height:1.75;flex:1}
.gift-meta{
  margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);
  display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--ink-500);
}
.gift-meta span{display:flex;align-items:center;gap:8px}
.gift-meta i{color:var(--lime-700);font-size:12px}
.gift-action{margin-top:18px}
.gift-card.is-over{opacity:.72}
.gift-card.is-over .gift-cover img{filter:grayscale(.55)}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step}
.step{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);padding:26px 24px 24px;
  transition:border-color .2s ease,transform .2s ease;
}
.step:hover{border-color:var(--lime-400);transform:translateY(-3px)}
.step::before{
  counter-increment:step;content:"0" counter(step);
  display:block;font-size:26px;font-weight:800;color:var(--lime-700);
  font-variant-numeric:tabular-nums;margin-bottom:12px;
}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:14px;color:var(--ink-500);line-height:1.75}

/* ---------- 权益 ---------- */
.benefit-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.benefit-card{
  background:#fff;border:1px solid var(--line);border-left:3px solid var(--lime-400);
  border-radius:var(--radius-card);padding:26px 24px;
}
.benefit-card i{font-size:20px;color:var(--lime-700);margin-bottom:14px;display:block}
.benefit-card h3{font-size:17px;margin-bottom:10px}
.benefit-card p{font-size:14.5px;color:var(--ink-500);line-height:1.8}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:280px 1fr;gap:48px;align-items:start}
.faq-aside{
  position:sticky;top:96px;background:var(--ink-900);border-radius:var(--radius-card);
  padding:28px 26px;color:#fff;
}
.faq-aside h3{color:#fff;font-size:18px;margin-bottom:12px}
.faq-aside p{font-size:14px;color:rgba(255,255,255,.7);line-height:1.8;margin-bottom:20px}
.faq-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:60px;padding:16px 24px;text-align:left;
  font-size:16px;font-weight:700;color:var(--ink-950);
  transition:background .18s ease;
}
.faq-q:hover{background:var(--bg)}
.faq-icon{
  flex-shrink:0;width:26px;height:26px;border-radius:8px;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  color:var(--ink-700);font-size:12px;transition:transform .24s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.faq-item.open .faq-icon{background:var(--lime-400);border-color:var(--lime-400);color:var(--ink-950);transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease-out}
.faq-a-inner{padding:0 24px 22px 24px;font-size:15px;color:var(--ink-500);line-height:1.85}
.faq-item.open .faq-a{max-height:320px}

/* ---------- CTA 条幅 ---------- */
.cta-band{
  background:var(--ink-950);border-radius:var(--radius-hero);
  padding:48px 48px 44px;position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;
  border-radius:50%;background:rgba(184,255,46,.12);
}
.cta-band-text{position:relative;z-index:2;max-width:640px}
.cta-band h2{color:#fff;font-size:28px;letter-spacing:-0.02em}
.cta-band p{margin-top:14px;color:rgba(255,255,255,.72);font-size:15.5px;line-height:1.85}
.cta-band-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-950);color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:88px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:800}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:360px}
.footer-title{font-size:15px;color:#fff;margin-bottom:18px;font-weight:700}
.footer-links li{margin-bottom:11px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.62);transition:color .18s ease}
.footer-links a:hover{color:var(--lime-400)}
.footer-contact li{display:flex;gap:10px;font-size:14px;line-height:1.75;margin-bottom:12px;color:rgba(255,255,255,.62)}
.footer-contact i{color:var(--lime-400);margin-top:5px;font-size:13px}
.footer-contact a:hover{color:var(--lime-400)}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0 26px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(255,255,255,.45);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .gift-grid{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:1024px){
  .container{padding:0 24px}
  .nav-links{display:none}
  .menu-toggle{display:inline-flex}
  .header-actions .search-box{display:none}
  .hero-inner{grid-template-columns:1fr;gap:32px}
  .page-hero h1{font-size:34px}
  .stat-card{grid-template-columns:repeat(2,1fr)}
  .stat-item:nth-child(2){border-right:0}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--line)}
  .gift-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .benefit-grid{grid-template-columns:repeat(2,1fr)}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .faq-aside{position:static}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:36px}
}
@media (max-width:768px){
  .section{padding:64px 0}
  .page-hero{padding:48px 0 60px}
  .page-hero h1{font-size:28px}
  .hero-sub{font-size:15.5px}
  .section-title{font-size:24px}
  .cta-band{padding:34px 26px}
  .cta-band h2{font-size:22px}
  .site-footer{margin-top:64px;padding-top:56px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .brand-text{font-size:15.5px}
  .header-actions .btn-primary{display:none}
  .stat-card{grid-template-columns:1fr}
  .stat-item{border-right:0;border-bottom:1px solid var(--line)}
  .stat-item:last-child{border-bottom:0}
  .gift-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .benefit-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;gap:8px}
  .hero-cta .btn{width:100%}
  .faq-q{font-size:15px;padding:14px 18px}
  .faq-a-inner{padding:0 18px 20px 18px}
}
/* ---------- 移动抽屉 ---------- */
.mobile-drawer{
  position:fixed;inset:68px 0 0 0;z-index:55;background:rgba(11,15,20,.45);
  opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease;
}
.mobile-drawer.open{opacity:1;visibility:visible}
.mobile-panel{
  background:#fff;padding:12px 16px 22px;box-shadow:var(--shadow-md);
  max-height:100%;overflow-y:auto;
}
.mobile-panel a{
  display:flex;align-items:center;height:48px;padding:0 12px;
  font-size:15px;font-weight:600;color:var(--ink-700);
  border-radius:9px;border-left:3px solid transparent;
}
.mobile-panel a.active{border-left-color:var(--lime-400);color:var(--ink-950);background:var(--lime-soft)}
.mobile-panel a:hover{background:var(--bg)}

/* roulang page: category2 */
:root{
    --ink-950:#0B0F14;
    --ink-900:#131922;
    --ink-700:#2A2F36;
    --ink-500:#6B7280;
    --line:#E7EAEE;
    --bg:#F6F7F9;
    --card:#FFFFFF;
    --lime-400:#B8FF2E;
    --lime-700:#4D7A00;
    --violet-500:#6C4CFF;
    --ember-500:#FF6A2B;
    --radius-btn:10px;
    --radius-card:16px;
    --radius-hero:20px;
    --shadow-sm:0 1px 2px rgba(11,15,20,.06);
    --shadow-md:0 8px 24px rgba(11,15,20,.08);
    --shadow-lg:0 20px 48px rgba(11,15,20,.18);
    --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    font-family:var(--font-cn);
    font-size:16px;
    line-height:1.8;
    color:var(--ink-700);
    background:var(--bg);
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;border-style:none}
  a{color:inherit;text-decoration:none}
  button,input,select,textarea{font:inherit;color:inherit}
  ul,ol{margin:0;padding:0;list-style:none}
  h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.3}
  p{margin:0}
  :focus-visible{outline:2px solid var(--lime-700);outline-offset:2px}
  .on-dark :focus-visible,.page-hero :focus-visible,.cta-band :focus-visible,.site-footer :focus-visible{outline-color:var(--lime-400)}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}

  /* ===== Header / Nav ===== */
  .site-header{
    position:sticky;top:0;z-index:80;background:#fff;
    border-bottom:1px solid var(--line);box-shadow:var(--shadow-sm);
  }
  .header-inner{display:flex;align-items:center;gap:22px;height:68px}
  .brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:var(--ink-950);white-space:nowrap;flex:0 0 auto}
  .brand-mark{
    width:32px;height:32px;border-radius:9px;background:var(--ink-950);color:var(--lime-400);
    display:grid;place-items:center;font-size:15px;flex:0 0 auto;
  }
  .nav-links{display:flex;align-items:center;gap:4px;margin-left:6px}
  .nav-link{
    position:relative;padding:9px 12px;border-radius:9px;font-size:15px;font-weight:500;
    color:var(--ink-700);transition:color .18s ease,background-color .18s ease;white-space:nowrap;
  }
  .nav-link:hover{color:var(--ink-950);background:var(--bg)}
  .nav-link.active{color:var(--ink-950);font-weight:700}
  .nav-link.active::after{
    content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
    background:var(--lime-400);border-radius:2px;
  }
  .header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
  .search-box{
    display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;min-width:210px;
    border:1px solid var(--line);border-radius:999px;background:var(--bg);
    transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
  }
  .search-box i{color:var(--ink-500);font-size:13px}
  .search-box input{border:0;background:transparent;outline:0;width:100%;font-size:14px;color:var(--ink-700)}
  .search-box input::placeholder{color:#9AA1AA}
  .search-box:focus-within{border-color:var(--lime-400);background:#fff;box-shadow:0 0 0 3px rgba(184,255,46,.35)}
  .nav-toggle{
    display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;
    background:#fff;color:var(--ink-950);cursor:pointer;align-items:center;justify-content:center;
  }
  .nav-toggle:hover{border-color:var(--lime-400)}

  /* ===== Buttons ===== */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 22px;border:1px solid transparent;border-radius:var(--radius-btn);
    font-size:15px;font-weight:700;cursor:pointer;white-space:nowrap;
    transition:transform .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
  }
  .btn-primary{background:var(--lime-400);color:var(--ink-950)}
  .btn-primary:hover{background:var(--lime-700);color:#fff;transform:translateY(-2px)}
  .btn-primary:active{transform:translateY(0)}
  .btn-outline{background:transparent;color:var(--ink-950);border-color:var(--line)}
  .btn-outline:hover{background:var(--lime-400);border-color:var(--lime-400)}
  .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.3)}
  .btn-ghost:hover{border-color:var(--lime-400);color:var(--lime-400)}
  .btn-sm{height:40px;padding:0 16px;font-size:14px}
  .btn-lg{height:52px;padding:0 28px;font-size:16px}

  /* ===== Section base ===== */
  .section{padding:88px 0}
  .section-alt{background:#fff}
  .section-head{max-width:740px;margin-bottom:44px}
  .eyebrow{font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--lime-700)}
  .section-title{margin-top:12px;font-size:clamp(24px,3vw,34px);color:var(--ink-950)}
  .section-sub{margin-top:14px;font-size:16px;line-height:1.85;color:var(--ink-500)}
  .section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;flex-wrap:wrap;margin-bottom:44px}

  /* ===== Page hero ===== */
  .page-hero{position:relative;background:var(--ink-950);color:#fff;padding:66px 0 74px;overflow:hidden}
  .page-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.3}
  .page-hero::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(100deg,rgba(11,15,20,.95) 6%,rgba(11,15,20,.78) 54%,rgba(11,15,20,.58) 100%);
  }
  .page-hero-tilt{position:absolute;left:0;right:0;bottom:0;height:4px;background:var(--lime-400);transform:skewY(-0.7deg);z-index:3}
  .page-hero-inner{position:relative;z-index:2;max-width:860px}
  .breadcrumb{font-size:13px;color:rgba(255,255,255,.6);display:flex;gap:8px;align-items:center;flex-wrap:wrap}
  .breadcrumb a{transition:color .18s ease}
  .breadcrumb a:hover{color:var(--lime-400)}
  .hero-badge{
    display:inline-flex;align-items:center;gap:8px;margin-top:20px;padding:6px 14px;border-radius:999px;
    background:rgba(184,255,46,.14);border:1px solid rgba(184,255,46,.4);color:var(--lime-400);
    font-size:13px;font-weight:700;letter-spacing:.04em;
  }
  .page-hero h1{margin-top:18px;font-size:clamp(28px,4vw,44px);color:#fff;line-height:1.24}
  .hero-sub{margin-top:18px;font-size:17px;line-height:1.8;color:rgba(255,255,255,.78);max-width:640px}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
  .hero-stats{
    display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;
    margin-top:44px;padding-top:28px;border-top:1px solid rgba(255,255,255,.14);
  }
  .stat-num{font-size:26px;font-weight:800;color:var(--lime-400);font-variant-numeric:tabular-nums;line-height:1.2}
  .stat-label{margin-top:4px;font-size:13px;color:rgba(255,255,255,.62)}

  /* ===== Chips ===== */
  .chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:36px}
  .chip{
    padding:8px 16px;border-radius:999px;border:1px solid var(--line);background:#fff;
    font-size:14px;color:var(--ink-700);transition:.18s ease;cursor:pointer;
  }
  .chip:hover{border-color:var(--lime-400);background:#F7FFE6;color:var(--ink-950)}
  .chip.is-active{background:var(--ink-950);color:var(--lime-400);border-color:var(--ink-950)}

  /* ===== Intro ===== */
  .intro-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center}
  .intro-figure{position:relative;border-radius:var(--radius-hero);overflow:hidden;box-shadow:var(--shadow-lg)}
  .intro-figure img{width:100%;height:340px;object-fit:cover;border-radius:var(--radius-hero)}
  .intro-figure-tag{
    position:absolute;left:18px;top:18px;padding:6px 14px;border-radius:999px;
    background:rgba(11,15,20,.82);color:var(--lime-400);font-size:13px;font-weight:700;
  }
  .intro-points{display:grid;gap:18px;margin-top:26px}
  .intro-point{display:flex;gap:14px;align-items:flex-start}
  .intro-point i{
    flex:0 0 34px;width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
    background:#F2FFD6;color:var(--lime-700);font-size:14px;
  }
  .intro-point h3{font-size:16px;color:var(--ink-950);font-weight:700}
  .intro-point p{margin-top:4px;font-size:14.5px;color:var(--ink-500);line-height:1.75}

  /* ===== Guide cards ===== */
  .guide-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
  .guide-card{
    position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
    padding:26px 26px 24px;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
  }
  .guide-card::before{
    content:"";position:absolute;left:0;top:22px;width:3px;height:34px;border-radius:0 3px 3px 0;background:var(--lime-400);
  }
  .guide-card:hover{transform:translateY(-4px);border-color:var(--lime-400);box-shadow:var(--shadow-md)}
  .guide-num{
    display:block;font-size:44px;font-weight:800;line-height:1;
    color:rgba(77,122,0,.28);font-variant-numeric:tabular-nums;
  }
  .guide-card h3{margin-top:12px;font-size:19px;color:var(--ink-950)}
  .guide-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
  .tag{
    display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;
    font-size:12.5px;font-weight:700;border:1px solid transparent;
  }
  .tag-lime{background:#F2FFD6;color:var(--lime-700);border-color:#DBF5A2}
  .tag-violet{background:#F2EFFF;color:var(--violet-500);border-color:#DAD1FF}
  .tag-ember{background:var(--ember-500);color:#fff}
  .tag-dark{background:var(--ink-950);color:var(--lime-400)}
  .guide-points{display:grid;gap:10px;margin-top:18px}
  .guide-points li{position:relative;padding-left:18px;font-size:15px;line-height:1.75;color:var(--ink-500)}
  .guide-points li::before{
    content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:2px;background:var(--lime-400);
  }
  .text-link{
    display:inline-flex;align-items:center;gap:8px;margin-top:22px;padding-bottom:2px;
    font-size:14.5px;font-weight:700;color:var(--ink-950);border-bottom:2px solid var(--lime-400);
    transition:color .18s ease,gap .18s ease;
  }
  .text-link:hover{color:var(--lime-700);gap:12px}

  /* ===== Rank list ===== */
  .rank-list{display:grid;gap:14px}
  .rank-item{
    display:grid;grid-template-columns:56px 1fr auto;gap:22px;align-items:center;
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:20px 24px;
    transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
  }
  .rank-item:hover{transform:translateY(-2px);border-color:var(--lime-400);box-shadow:var(--shadow-md)}
  .rank-index{
    width:44px;height:44px;border-radius:12px;background:var(--ink-950);color:var(--lime-400);
    display:grid;place-items:center;font-weight:800;font-size:18px;font-variant-numeric:tabular-nums;
  }
  .rank-item:first-child .rank-index{background:var(--lime-400);color:var(--ink-950)}
  .rank-top{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
  .rank-top h3{font-size:17px;color:var(--ink-950);font-weight:700}
  .progress{height:6px;border-radius:999px;background:var(--line);margin-top:12px;overflow:hidden}
  .progress-bar{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--lime-400),#8CD500)}
  .rank-note{margin-top:10px;font-size:14px;color:var(--ink-500)}
  .rank-heat{font-size:22px;font-weight:800;color:var(--ink-950);font-variant-numeric:tabular-nums;text-align:right}
  .rank-heat small{display:block;margin-top:2px;font-size:12px;font-weight:500;color:var(--ink-500)}

  /* ===== Calendar ===== */
  .calendar{display:grid;grid-template-columns:repeat(auto-fit,minmax(168px,1fr));gap:14px}
  .cal-card{
    display:flex;flex-direction:column;gap:10px;min-height:158px;padding:18px 16px;
    background:#fff;border:1px solid var(--line);border-radius:14px;
    transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
  }
  .cal-card:hover{transform:translateY(-3px);border-color:var(--lime-400);box-shadow:var(--shadow-md)}
  .cal-card.is-today{background:var(--ink-950);border-color:var(--ink-950)}
  .cal-card.is-today .cal-day{color:var(--lime-400)}
  .cal-card.is-today .cal-title{color:#fff}
  .cal-card.is-today .cal-text{color:rgba(255,255,255,.68)}
  .cal-day{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--lime-700)}
  .cal-title{font-size:15px;font-weight:700;color:var(--ink-950)}
  .cal-text{font-size:13.5px;line-height:1.7;color:var(--ink-500)}

  /* ===== FAQ ===== */
  .faq-list{border-top:1px solid var(--line)}
  .faq-item{border-bottom:1px solid var(--line)}
  .faq-q{
    display:flex;align-items:center;justify-content:space-between;gap:20px;
    min-height:60px;padding:16px 4px;font-size:16px;font-weight:700;color:var(--ink-950);
    cursor:pointer;list-style:none;
  }
  .faq-q::-webkit-details-marker{display:none}
  .faq-icon{
    position:relative;flex:0 0 22px;width:22px;height:22px;border-radius:6px;
    border:1px solid var(--line);background:#fff;transition:background-color .2s ease,border-color .2s ease;
  }
  .faq-icon::before,.faq-icon::after{
    content:"";position:absolute;left:50%;top:50%;background:var(--ink-950);border-radius:2px;
    transform:translate(-50%,-50%);
  }
  .faq-icon::before{width:11px;height:2px}
  .faq-icon::after{width:2px;height:11px;transition:transform .24s ease,opacity .24s ease}
  .faq-item[open] .faq-icon{background:var(--lime-400);border-color:var(--lime-400)}
  .faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
  .faq-a{max-width:840px;padding:0 4px 22px;font-size:15px;line-height:1.85;color:var(--ink-500)}

  /* ===== CTA band ===== */
  .cta-band{
    position:relative;overflow:hidden;border-radius:24px;background:var(--ink-950);color:#fff;padding:56px;
  }
  .cta-band::before{
    content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
    background:radial-gradient(circle,rgba(184,255,46,.22),transparent 70%);
  }
  .cta-grid{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
  .cta-grid h2{font-size:clamp(24px,3vw,32px);color:#fff}
  .cta-grid .cta-desc{margin-top:16px;font-size:16px;line-height:1.85;color:rgba(255,255,255,.74);max-width:460px}
  .cta-list{display:grid;gap:12px;margin-top:26px}
  .cta-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:rgba(255,255,255,.78)}
  .cta-list i{color:var(--lime-400);margin-top:6px;font-size:12px}
  .form-card{background:#fff;border-radius:var(--radius-card);padding:28px;box-shadow:var(--shadow-lg);color:var(--ink-700)}
  .form-card h3{font-size:18px;color:var(--ink-950)}
  .form-card .form-tip{margin-top:6px;font-size:13.5px;color:var(--ink-500)}
  .field{display:grid;gap:8px;margin-top:16px}
  .field label{font-size:13px;color:var(--ink-500)}
  .field input,.field select,.field textarea{
    width:100%;height:44px;padding:0 14px;border:1px solid var(--line);border-radius:10px;
    background:#fff;transition:border-color .18s ease,box-shadow .18s ease;
  }
  .field textarea{height:98px;padding:12px 14px;resize:vertical;line-height:1.7}
  .field input:focus,.field select:focus,.field textarea:focus{
    outline:0;border-color:var(--lime-400);box-shadow:0 0 0 3px rgba(184,255,46,.35);
  }
  .form-card .btn{width:100%;margin-top:20px}

  /* ===== Footer ===== */
  .site-footer{background:var(--ink-950);color:rgba(255,255,255,.7);padding:64px 0 28px}
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px}
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;font-size:17px;font-weight:800;color:#fff}
  .footer-desc{max-width:330px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.6)}
  .footer-title{margin-bottom:16px;font-size:14px;font-weight:700;color:#fff;letter-spacing:.02em}
  .footer-links,.footer-contact{display:grid;gap:12px;font-size:14px}
  .footer-links a{color:rgba(255,255,255,.68);transition:color .18s ease}
  .footer-links a:hover{color:var(--lime-400)}
  .footer-contact li{display:flex;gap:10px;line-height:1.7;color:rgba(255,255,255,.62)}
  .footer-contact i{color:var(--lime-400);margin-top:5px;font-size:13px}
  .footer-contact a{color:var(--lime-400);word-break:break-all}
  .footer-bottom{
    display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
    margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
    font-size:12.5px;color:rgba(255,255,255,.5);
  }

  /* ===== Responsive ===== */
  @media (max-width:1180px){
    .search-box{min-width:170px}
    .nav-link{padding:9px 10px;font-size:14.5px}
  }
  @media (max-width:1024px){
    .container{padding:0 24px}
    .nav-toggle{display:inline-flex}
    .search-box{display:none}
    .nav-links{
      position:fixed;left:0;right:0;top:68px;display:none;flex-direction:column;align-items:stretch;
      gap:0;margin:0;padding:10px 16px 18px;background:#fff;
      border-bottom:1px solid var(--line);box-shadow:var(--shadow-md);max-height:calc(100vh - 68px);overflow:auto;
    }
    .nav-links.is-open{display:flex}
    .nav-link{padding:14px 12px;font-size:16px;border-left:3px solid transparent;border-radius:8px}
    .nav-link.active{background:var(--bg);border-left-color:var(--lime-400)}
    .nav-link.active::after{display:none}
    .header-inner{gap:14px}
    .intro-grid{grid-template-columns:1fr;gap:34px}
    .intro-figure img{height:280px}
    .cta-grid{grid-template-columns:1fr;gap:34px}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
    .section{padding:72px 0}
  }
  @media (max-width:768px){
    .guide-grid{grid-template-columns:1fr}
    .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 16px}
    .rank-item{grid-template-columns:44px 1fr;gap:14px 16px;padding:18px}
    .rank-heat{grid-column:2;text-align:left;font-size:18px}
    .cta-band{padding:34px 22px;border-radius:18px}
    .page-hero{padding:48px 0 56px}
    .section-head-row{align-items:flex-start}
    .footer-grid{grid-template-columns:1fr;gap:28px}
    .footer-desc{max-width:none}
  }
  @media (max-width:520px){
    .container{padding:0 16px}
    .section{padding:56px 0}
    .brand{font-size:16px}
    .hero-actions .btn{width:100%}
    .stat-num{font-size:22px}
    .guide-card{padding:22px 20px}
    .rank-item{padding:16px}
    .footer-bottom{justify-content:flex-start}
  }

/* roulang page: category5 */
:root{
  --ink-950:#0B0F14;
  --ink-900:#131922;
  --ink-700:#2A2F36;
  --ink-500:#6B7280;
  --line:#E7EAEE;
  --bg:#F6F7F9;
  --card:#FFFFFF;
  --lime-400:#B8FF2E;
  --lime-700:#4D7A00;
  --lime-soft:#F2FFD6;
  --violet-500:#6C4CFF;
  --ember-500:#FF6A2B;
  --shadow-sm:0 1px 2px rgba(11,15,20,.06);
  --shadow-md:0 8px 24px rgba(11,15,20,.08);
  --shadow-lg:0 20px 48px rgba(11,15,20,.18);
  --r-btn:10px;
  --r-card:16px;
  --r-hero:20px;
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--ink-700);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:800;color:var(--ink-950);letter-spacing:-0.01em;line-height:1.35}
p{margin:0}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:88px 0}
.section-tight{padding:64px 0}
.section-head{max-width:780px;margin-bottom:40px}
.section-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--lime-700);text-transform:uppercase}
.section-eyebrow::before{content:"";width:22px;height:3px;background:var(--lime-400);border-radius:2px}
.section-title{font-size:32px;margin:12px 0 12px}
.section-sub{color:var(--ink-500);font-size:16px;max-width:720px}

/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);box-shadow:var(--shadow-sm);
}
.header-inner{display:flex;align-items:center;gap:28px;height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:32px;height:32px;border-radius:9px;background:var(--ink-950);color:var(--lime-400);
  display:inline-flex;align-items:center;justify-content:center;font-size:15px;
}
.brand-text{font-size:17px;font-weight:800;color:var(--ink-950);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:68px;padding:0 14px;
  font-size:15px;font-weight:600;color:var(--ink-700);transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:14px;height:2px;border-radius:2px;
  background:var(--lime-400);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-link:hover{color:var(--ink-950)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--ink-950)}
.nav-link.active::after{transform:scaleX(1)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 16px;
  border:1px solid var(--line);border-radius:999px;background:var(--bg);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box:focus-within{border-color:var(--lime-400);box-shadow:0 0 0 2px rgba(184,255,46,.35)}
.search-box i{color:var(--ink-500);font-size:13px}
.search-box input{border:0;background:transparent;outline:none;width:150px;font-size:14px}
.search-box input::placeholder{color:var(--ink-500)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--ink-900);cursor:pointer;
}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:#fff;padding:8px 0 16px}
.mobile-drawer.open{display:block}
.mobile-drawer .nav-link{display:flex;height:48px;padding:0 20px;border-left:3px solid transparent}
.mobile-drawer .nav-link::after{display:none}
.mobile-drawer .nav-link.active{border-left-color:var(--lime-400);color:var(--ink-950);background:var(--bg)}

/* ============ Buttons ============ */
.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:700;cursor:pointer;transition:all .2s ease;white-space:nowrap;
}
.btn:focus-visible{outline:2px solid var(--lime-400);outline-offset:2px}
.btn-primary{background:var(--lime-400);color:var(--ink-950)}
.btn-primary:hover{background:var(--lime-700);color:#fff}
.btn-primary:active{transform:translateY(1px)}
.btn-outline{background:transparent;border-color:var(--lime-400);color:var(--lime-400)}
.btn-outline:hover{background:var(--lime-400);color:var(--ink-950)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink-700)}
.btn-ghost:hover{border-color:var(--lime-400);color:var(--ink-950)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-lg{height:50px;padding:0 28px;font-size:16px}
.btn[disabled]{opacity:.4;cursor:not-allowed}

/* ============ Badges ============ */
.badge{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;font-size:13px;font-weight:700}
.badge-lime{background:var(--lime-soft);color:var(--lime-700);border:1px solid rgba(77,122,0,.2)}
.badge-violet{background:rgba(108,76,255,.08);color:var(--violet-500);border:1px solid rgba(108,76,255,.25)}
.badge-ember{background:var(--ember-500);color:#fff}
.badge-ink{background:var(--ink-900);color:#fff;border:1px solid rgba(184,255,46,.3)}

/* ============ Hero ============ */
.hero{position:relative;background:var(--ink-950);color:#fff;overflow:hidden;padding:76px 0 104px}
.hero::before{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-2.png) center/cover no-repeat;opacity:.34;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(104deg,rgba(11,15,20,.96) 0%,rgba(11,15,20,.86) 48%,rgba(11,15,20,.62) 100%);
}
.hero-inner{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.6)}
.breadcrumb a:hover{color:var(--lime-400)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:#fff}
.hero-grid{display:grid;grid-template-columns:1.25fr .95fr;gap:48px;align-items:center;margin-top:28px}
.hero h1{font-size:44px;color:#fff;margin:16px 0 18px}
.hero h1 em{font-style:normal;color:var(--lime-400)}
.hero-sub{font-size:18px;color:rgba(255,255,255,.78);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:9px 14px;border-radius:999px;
  border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.05);
  font-size:13px;font-weight:600;color:rgba(255,255,255,.86);
}
.hero-badge i{color:var(--lime-400)}
.hero-panel{
  background:rgba(19,25,34,.92);border:1px solid rgba(184,255,46,.24);border-radius:var(--r-hero);
  padding:26px;box-shadow:var(--shadow-lg);
}
.hero-panel h3{color:#fff;font-size:18px;margin-bottom:6px}
.hero-panel p{color:rgba(255,255,255,.62);font-size:14px}
.hero-stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:20px}
.hero-stat{border-top:1px solid rgba(255,255,255,.12);padding-top:14px}
.hero-stat b{display:block;font-size:24px;color:var(--lime-400);font-variant-numeric:tabular-nums;line-height:1.2}
.hero-stat span{font-size:12px;color:rgba(255,255,255,.6)}
.hero-strip{
  position:relative;z-index:3;height:4px;background:var(--lime-400);
  transform:skewY(-0.6deg);margin-top:-6px;
}

/* ============ Cards ============ */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-sm);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-4px);border-color:var(--lime-400);box-shadow:var(--shadow-md)}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}

.entry-card{padding:24px;position:relative;overflow:hidden}
.entry-card::before{
  content:"";position:absolute;left:0;top:0;width:3px;height:100%;background:var(--lime-400);
  opacity:0;transition:opacity .22s ease;
}
.entry-card:hover::before{opacity:1}
.entry-icon{
  width:44px;height:44px;border-radius:12px;background:var(--lime-soft);color:var(--lime-700);
  display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:16px;
}
.entry-card h3{font-size:18px;margin-bottom:8px}
.entry-card p{font-size:14px;color:var(--ink-500)}
.entry-meta{display:flex;align-items:center;gap:10px;margin-top:16px;font-size:13px;color:var(--ink-500)}
.entry-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line)}

/* ============ FAQ layout ============ */
.faq-layout{display:grid;grid-template-columns:240px 1fr;gap:48px;align-items:start}
.faq-toc{position:sticky;top:96px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:20px}
.toc-title{font-size:13px;font-weight:800;letter-spacing:.08em;color:var(--ink-500);margin-bottom:12px}
.toc-link{
  display:block;padding:10px 12px;border-left:3px solid transparent;
  font-size:14px;font-weight:600;color:var(--ink-700);border-radius:0 8px 8px 0;transition:all .18s ease;
}
.toc-link:hover{background:var(--bg);color:var(--ink-950)}
.toc-link.active{border-left-color:var(--lime-400);background:var(--bg);color:var(--ink-950);font-weight:700}
.toc-cta{margin-top:18px;padding-top:18px;border-top:1px solid var(--line)}
.toc-cta p{font-size:13px;color:var(--ink-500);margin-bottom:12px}

.faq-group{margin-bottom:44px;scroll-margin-top:96px}
.faq-group-head{display:flex;align-items:center;gap:12px;margin-bottom:8px}
.faq-group-head h2{font-size:22px}
.faq-group-head .line{flex:1;height:1px;background:var(--line)}
.faq-group-sub{font-size:14px;color:var(--ink-500);margin-bottom:14px}
.faq-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:4px 24px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 0;background:none;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:700;color:var(--ink-900);transition:color .18s ease;
}
.faq-q:hover{color:var(--lime-700)}
.faq-q i{color:var(--ink-500);font-size:14px;transition:transform .26s ease,color .2s ease;flex-shrink:0}
.faq-item.open .faq-q i{transform:rotate(45deg);color:var(--lime-700)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease-out}
.faq-a-inner{padding:0 44px 22px 0;font-size:15px;line-height:1.9;color:var(--ink-500);max-width:780px}
.faq-a-inner strong{color:var(--ink-700)}

/* ============ Steps ============ */
.flow{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.flow-list{display:grid;gap:18px;margin-top:8px}
.flow-item{display:flex;gap:16px;padding:18px 20px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card)}
.flow-num{
  width:32px;height:32px;flex-shrink:0;border-radius:50%;background:var(--ink-950);color:var(--lime-400);
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:800;
}
.flow-item h3{font-size:16px;margin-bottom:4px}
.flow-item p{font-size:14px;color:var(--ink-500)}
.flow-visual{position:relative}
.flow-visual img{border-radius:var(--r-hero);box-shadow:var(--shadow-lg);width:100%;object-fit:cover;aspect-ratio:4/3}
.flow-visual .tag-float{
  position:absolute;left:-16px;bottom:24px;background:#fff;border:1px solid var(--line);
  border-radius:14px;padding:14px 18px;box-shadow:var(--shadow-md);
}
.flow-visual .tag-float b{display:block;font-size:20px;color:var(--ink-950);font-variant-numeric:tabular-nums}
.flow-visual .tag-float span{font-size:12px;color:var(--ink-500)}

/* ============ Hot list ============ */
.hot-wrap{background:var(--ink-950);color:#fff;border-radius:var(--r-hero);padding:36px}
.hot-wrap h2{color:#fff;font-size:26px;margin-bottom:8px}
.hot-wrap .lead{color:rgba(255,255,255,.6);font-size:15px;margin-bottom:26px}
.hot-item{
  display:grid;grid-template-columns:36px 1fr auto;gap:16px;align-items:center;
  padding:16px 0;border-bottom:1px solid rgba(255,255,255,.1);
}
.hot-item:last-child{border-bottom:0}
.hot-rank{
  font-size:20px;font-weight:800;color:rgba(255,255,255,.28);font-variant-numeric:tabular-nums;
}
.hot-item:nth-child(2) .hot-rank,
.hot-item:nth-child(3) .hot-rank,
.hot-item:nth-child(4) .hot-rank{color:var(--lime-400)}
.hot-title{font-size:15px;font-weight:600;color:rgba(255,255,255,.92)}
.hot-bar{height:4px;border-radius:999px;background:rgba(255,255,255,.12);margin-top:10px;overflow:hidden}
.hot-bar i{display:block;height:100%;background:var(--lime-400);border-radius:999px}
.hot-val{font-size:14px;color:var(--lime-400);font-variant-numeric:tabular-nums;font-weight:700}

/* ============ Form ============ */
.contact-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:start}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:28px;box-shadow:var(--shadow-md)}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;color:var(--ink-500);font-weight:600;margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:10px;background:#fff;
  padding:11px 14px;outline:none;transition:border-color .2s ease,box-shadow .2s ease;
}
.field input,.field select{height:44px;padding:0 14px}
.field textarea{min-height:112px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--lime-400);box-shadow:0 0 0 2px rgba(184,255,46,.3)}
.form-note{font-size:13px;color:var(--ink-500);margin-top:14px}
.form-ok{
  display:none;margin-top:16px;padding:12px 16px;border-radius:10px;
  background:var(--lime-soft);border:1px solid rgba(77,122,0,.25);color:var(--lime-700);font-size:14px;font-weight:600;
}
.form-ok.show{display:block}
.side-card{background:var(--ink-900);color:#fff;border-radius:var(--r-card);padding:26px;border:1px solid rgba(184,255,46,.22)}
.side-card h3{color:#fff;font-size:18px;margin-bottom:12px}
.side-card ul{display:grid;gap:12px}
.side-card li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.72)}
.side-card li i{color:var(--lime-400);margin-top:5px}

/* ============ CTA band ============ */
.cta-band{
  background:var(--ink-950);border-radius:var(--r-hero);padding:44px 40px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(184,255,46,.18),transparent 68%);
}
.cta-band h2{color:#fff;font-size:28px;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.66);font-size:15px;max-width:560px}
.cta-band .actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap}

/* ============ Footer ============ */
.site-footer{background:var(--ink-950);color:rgba(255,255,255,.66);padding:60px 0 0;margin-top:88px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.25fr;gap:36px;padding-bottom:40px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px;color:#fff;font-weight:800;font-size:17px}
.footer-brand .brand-mark{background:rgba(184,255,46,.14);color:var(--lime-400)}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.58);max-width:340px}
.footer-title{font-size:15px;color:#fff;margin-bottom:16px}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.62);transition:color .2s ease}
.footer-links a:hover{color:var(--lime-400)}
.footer-contact{display:grid;gap:12px}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.62);line-height:1.7}
.footer-contact i{color:var(--lime-400);margin-top:5px;font-size:13px}
.footer-contact a{color:var(--lime-400)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:12px;color:rgba(255,255,255,.45);
}

/* ============ Responsive ============ */
@media (max-width:1279px){
  .grid-4{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav-links{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .search-box{display:none}
  .hero{padding:56px 0 80px}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero h1{font-size:34px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .faq-toc{position:static;display:flex;flex-wrap:wrap;gap:8px;align-items:center}
  .toc-title{width:100%;margin-bottom:4px}
  .toc-link{border-left:0;border:1px solid var(--line);border-radius:999px;padding:8px 14px}
  .toc-link.active{border-color:var(--lime-400);background:var(--lime-soft)}
  .toc-cta{display:none}
  .flow{grid-template-columns:1fr;gap:32px}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:30px}
  .section{padding:72px 0}
}
@media (max-width:767px){
  .container{padding:0 16px}
  body{font-size:16px;line-height:1.85}
  .header-inner{height:64px;gap:12px}
  .nav-link{height:64px}
  .hero h1{font-size:28px}
  .hero-sub{font-size:16px}
  .section-title{font-size:24px}
  .grid-4,.grid-3,.grid-2{grid-template-columns:1fr}
  .hero-stat-row{grid-template-columns:repeat(3,1fr)}
  .faq-list{padding:2px 18px}
  .faq-a-inner{padding-right:0}
  .hot-wrap{padding:24px}
  .hot-item{grid-template-columns:28px 1fr auto;gap:12px}
  .cta-band{padding:30px 22px}
  .cta-band h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .section{padding:56px 0}
  .flow-visual .tag-float{left:12px;bottom:12px}
}
@media (max-width:520px){
  .btn{width:100%}
  .hero-actions .btn,.cta-band .actions .btn{width:100%}
  .hero-stat b{font-size:20px}
}

/* roulang page: category4 */
:root{
    --ink-950:#0B0F14;
    --ink-900:#131922;
    --ink-700:#2A2F36;
    --ink-500:#6B7280;
    --line:#E7EAEE;
    --bg:#F6F7F9;
    --card:#FFFFFF;
    --lime:#B8FF2E;
    --lime-700:#4D7A00;
    --violet:#6C4CFF;
    --ember:#FF6A2B;
    --r-sm:10px;
    --r-md:16px;
    --r-lg:20px;
    --sh-sm:0 1px 2px rgba(11,15,20,.06);
    --sh-md:0 8px 24px rgba(11,15,20,.08);
    --sh-lg:0 20px 48px rgba(11,15,20,.18);
    --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:var(--font-cn);
    font-size:16px;
    line-height:1.8;
    color:var(--ink-700);
    background:#FFFFFF;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;border-radius:12px;}
  a{color:inherit;text-decoration:none;}
  button,input,select,textarea{font:inherit;color:inherit;}
  ul,ol{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4,p{margin:0;}
  :focus-visible{outline:2px solid var(--lime-700);outline-offset:2px;border-radius:6px;}

  .container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding:0 32px;
  }

  /* ============ 顶部导航 ============ */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:#FFFFFF;
    border-bottom:1px solid var(--line);
    box-shadow:var(--sh-sm);
  }
  .header-inner{
    display:flex;
    align-items:center;
    gap:20px;
    height:68px;
  }
  .brand{
    display:flex;
    align-items:center;
    gap:10px;
    font-weight:800;
    font-size:17px;
    color:var(--ink-950);
    letter-spacing:-.01em;
    white-space:nowrap;
  }
  .brand-mark{
    width:32px;
    height:32px;
    border-radius:9px;
    background:var(--ink-950);
    color:var(--lime);
    display:grid;
    place-items:center;
    font-size:15px;
    flex-shrink:0;
  }
  .nav-links{
    display:flex;
    align-items:center;
    gap:2px;
    margin-left:10px;
  }
  .nav-link{
    position:relative;
    padding:9px 13px;
    border-radius:8px;
    font-size:15px;
    color:var(--ink-700);
    transition:background .2s ease,color .2s ease;
  }
  .nav-link:hover{background:var(--bg);color:var(--ink-950);}
  .nav-link.active{color:var(--ink-950);font-weight:700;}
  .nav-link.active::after{
    content:"";
    position:absolute;
    left:13px;
    right:13px;
    bottom:3px;
    height:2px;
    border-radius:2px;
    background:var(--lime);
  }
  .header-actions{
    margin-left:auto;
    display:flex;
    align-items:center;
    gap:12px;
  }
  .search-box{
    display:flex;
    align-items:center;
    gap:8px;
    height:40px;
    padding:0 15px;
    border:1px solid var(--line);
    border-radius:999px;
    background:var(--bg);
    color:var(--ink-500);
    transition:border-color .2s ease,background .2s ease,box-shadow .2s ease;
  }
  .search-box input{
    border:0;
    background:transparent;
    outline:0;
    width:140px;
    font-size:14px;
    color:var(--ink-700);
  }
  .search-box input::placeholder{color:var(--ink-500);}
  .search-box:focus-within{
    border-color:var(--lime-700);
    background:#FFFFFF;
    box-shadow:0 0 0 3px rgba(184,255,46,.35);
  }
  .menu-toggle{
    display:none;
    width:42px;
    height:42px;
    border:1px solid var(--line);
    border-radius:10px;
    background:#FFFFFF;
    color:var(--ink-950);
    cursor:pointer;
  }
  .mobile-drawer{
    display:none;
    border-top:1px solid var(--line);
    background:#FFFFFF;
    overflow:hidden;
    max-height:0;
    transition:max-height .3s ease;
  }
  .drawer-link{
    display:block;
    padding:14px 32px;
    font-size:16px;
    color:var(--ink-700);
    border-bottom:1px solid var(--line);
  }
  .drawer-link.active{
    color:var(--ink-950);
    font-weight:700;
    box-shadow:inset 3px 0 0 var(--lime);
    background:#FAFBFC;
  }

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    height:44px;
    padding:0 22px;
    border-radius:var(--r-sm);
    border:1px solid transparent;
    font-size:15px;
    font-weight:700;
    cursor:pointer;
    transition:background .2s ease,color .2s ease,transform .15s ease,border-color .2s ease,box-shadow .2s ease;
    white-space:nowrap;
  }
  .btn:active{transform:translateY(1px);}
  .btn-sm{height:38px;padding:0 16px;font-size:14px;}
  .btn-lg{height:50px;padding:0 28px;font-size:16px;}
  .btn-block{width:100%;}
  .btn-primary{background:var(--lime);color:var(--ink-950);}
  .btn-primary:hover{background:var(--lime-700);color:#FFFFFF;transform:translateY(-2px);}
  .btn-ghost{
    background:var(--ink-900);
    color:#FFFFFF;
    border-color:rgba(184,255,46,.55);
  }
  .btn-ghost:hover{background:rgba(184,255,46,.14);border-color:var(--lime);transform:translateY(-2px);}
  .btn-outline{
    background:#FFFFFF;
    color:var(--ink-950);
    border-color:var(--line);
  }
  .btn-outline:hover{border-color:var(--lime-700);background:#F4FFDD;}
  .btn-ember{background:var(--ember);color:#FFFFFF;}
  .btn-ember:hover{background:#E2561C;transform:translateY(-2px);}
  .btn[disabled],.btn.is-disabled{
    opacity:.4;
    cursor:not-allowed;
    transform:none;
  }

  /* ============ 徽章 / 标签 ============ */
  .badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    height:26px;
    padding:0 11px;
    border-radius:999px;
    font-size:12.5px;
    font-weight:700;
    line-height:1;
    white-space:nowrap;
  }
  .badge-violet{background:rgba(108,76,255,.1);color:var(--violet);border:1px solid rgba(108,76,255,.3);}
  .badge-lime{background:rgba(184,255,46,.28);color:var(--lime-700);border:1px solid rgba(77,122,0,.28);}
  .badge-grey{background:#EEF1F4;color:var(--ink-500);border:1px solid var(--line);}
  .badge-ember{background:var(--ember);color:#FFFFFF;transform:rotate(-4deg);}
  .badge-soft{background:var(--bg);color:var(--ink-500);border:1px solid var(--line);}

  /* ============ Hero ============ */
  .hero{
    position:relative;
    background:var(--ink-950) url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    color:#FFFFFF;
    padding:64px 0 76px;
    overflow:hidden;
  }
  .hero::before{
    content:"";
    position:absolute;
    inset:0;
    background:linear-gradient(100deg,rgba(11,15,20,.97) 0%,rgba(11,15,20,.9) 46%,rgba(11,15,20,.66) 100%);
  }
  .hero::after{
    content:"";
    position:absolute;
    left:0;right:0;bottom:-2px;
    height:26px;
    background:var(--lime);
    clip-path:polygon(0 100%,100% 0,100% 100%);
    opacity:.9;
  }
  .hero-inner{position:relative;z-index:2;max-width:900px;}
  .crumbs{
    display:flex;
    align-items:center;
    gap:10px;
    font-size:14px;
    color:rgba(255,255,255,.62);
    margin-bottom:20px;
  }
  .crumbs a{color:rgba(255,255,255,.8);}
  .crumbs a:hover{color:var(--lime);}
  .crumbs span:last-child{color:rgba(255,255,255,.95);}
  .hero-badge{
    display:inline-flex;
    align-items:center;
    gap:8px;
    height:30px;
    padding:0 14px;
    border-radius:999px;
    border:1px solid rgba(184,255,46,.45);
    background:rgba(184,255,46,.12);
    color:var(--lime);
    font-size:13px;
    font-weight:700;
    margin-bottom:20px;
  }
  .hero h1{
    font-size:clamp(26px,3.6vw,42px);
    line-height:1.28;
    font-weight:800;
    letter-spacing:-.01em;
    color:#FFFFFF;
    max-width:820px;
  }
  .hero-sub{
    margin-top:18px;
    font-size:18px;
    line-height:1.85;
    color:rgba(255,255,255,.76);
    max-width:680px;
  }
  .hero-actions{
    display:flex;
    flex-wrap:wrap;
    gap:14px;
    margin-top:30px;
  }
  .hero-trust{
    display:flex;
    flex-wrap:wrap;
    gap:22px;
    margin-top:28px;
    font-size:14px;
    color:rgba(255,255,255,.72);
  }
  .hero-trust li{display:flex;align-items:center;gap:8px;}
  .hero-trust i{color:var(--lime);}
  .hero-stats{
    display:grid;
    grid-template-columns:repeat(4,minmax(0,1fr));
    gap:1px;
    margin-top:40px;
    border:1px solid rgba(255,255,255,.14);
    border-radius:var(--r-md);
    overflow:hidden;
    background:rgba(255,255,255,.14);
    max-width:760px;
  }
  .hero-stat{
    background:rgba(19,25,34,.86);
    padding:16px 18px;
  }
  .hero-stat b{
    display:block;
    font-size:26px;
    font-weight:800;
    color:var(--lime);
    font-variant-numeric:tabular-nums;
    line-height:1.2;
  }
  .hero-stat span{
    display:block;
    margin-top:4px;
    font-size:13px;
    color:rgba(255,255,255,.62);
  }

  /* ============ 通用板块 ============ */
  .section{padding:80px 0;}
  .section-alt{background:var(--bg);}
  .section-dark{background:var(--ink-950);color:#FFFFFF;}
  .section-head{max-width:760px;margin-bottom:36px;}
  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    font-weight:700;
    letter-spacing:.06em;
    color:var(--lime-700);
  }
  .eyebrow::before{
    content:"";
    width:22px;
    height:3px;
    border-radius:2px;
    background:var(--lime);
  }
  .sec-title{
    margin-top:12px;
    font-size:clamp(22px,2.4vw,30px);
    font-weight:800;
    line-height:1.34;
    letter-spacing:-.01em;
    color:var(--ink-950);
  }
  .sec-sub{
    margin-top:12px;
    font-size:16px;
    color:var(--ink-500);
    line-height:1.85;
  }
  .section-dark .sec-title{color:#FFFFFF;}
  .section-dark .sec-sub{color:rgba(255,255,255,.66);}
  .section-dark .eyebrow{color:var(--lime);}

  /* ============ 排期列表 ============ */
  .schedule-group{margin-bottom:36px;}
  .schedule-group:last-child{margin-bottom:0;}
  .group-title{
    display:flex;
    align-items:center;
    gap:12px;
    font-size:18px;
    font-weight:800;
    color:var(--ink-950);
    margin-bottom:16px;
  }
  .group-title::before{
    content:"";
    width:18px;
    height:3px;
    border-radius:2px;
    background:var(--lime);
  }
  .group-title small{
    font-size:13px;
    font-weight:600;
    color:var(--ink-500);
  }
  .server-list{display:flex;flex-direction:column;gap:12px;}
  .server-row{
    display:grid;
    grid-template-columns:74px minmax(0,1fr) auto;
    align-items:center;
    gap:20px;
    padding:16px 22px 16px 18px;
    background:#FFFFFF;
    border:1px solid var(--line);
    border-radius:var(--r-md);
    border-left:3px solid transparent;
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .server-row:hover{
    transform:translateY(-2px);
    border-color:var(--line);
    border-left-color:var(--lime);
    box-shadow:var(--sh-md);
  }
  .date-chip{
    width:64px;
    height:64px;
    border-radius:14px;
    background:var(--ink-950);
    color:var(--lime);
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    font-variant-numeric:tabular-nums;
    flex-shrink:0;
  }
  .date-chip .d-top{font-size:15px;font-weight:800;letter-spacing:.02em;}
  .date-chip .d-bot{font-size:13px;color:rgba(255,255,255,.84);}
  .srv-main{min-width:0;}
  .srv-title{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:8px;
    font-size:17px;
    font-weight:700;
    color:var(--ink-950);
  }
  .srv-meta{
    display:flex;
    flex-wrap:wrap;
    gap:16px;
    margin-top:6px;
    font-size:13.5px;
    color:var(--ink-500);
  }
  .srv-meta i{color:var(--ink-500);margin-right:5px;}
  .srv-actions{display:flex;align-items:center;gap:10px;}

  /* ============ 卖点卡 ============ */
  .grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
  .grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
  .grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
  .feature-card{
    position:relative;
    background:#FFFFFF;
    border:1px solid var(--line);
    border-top:3px solid var(--lime);
    border-radius:var(--r-md);
    padding:26px 24px;
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .feature-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:var(--line);border-top-color:var(--lime-700);}
  .feature-icon{
    width:44px;
    height:44px;
    border-radius:12px;
    background:var(--ink-950);
    color:var(--lime);
    display:grid;
    place-items:center;
    font-size:18px;
    margin-bottom:18px;
  }
  .feature-card h3{
    font-size:17px;
    font-weight:800;
    color:var(--ink-950);
    margin-bottom:10px;
  }
  .feature-card p{font-size:14.5px;color:var(--ink-500);line-height:1.8;}

  /* ============ 场景图文 ============ */
  .scene-card{
    background:#FFFFFF;
    border:1px solid var(--line);
    border-radius:var(--r-md);
    overflow:hidden;
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .scene-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:var(--lime-700);}
  .scene-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EEF1F4;}
  .scene-media img{width:100%;height:100%;object-fit:cover;border-radius:0;}
  .scene-media .badge{position:absolute;top:14px;left:14px;}
  .scene-body{padding:22px 24px 26px;}
  .scene-body h3{font-size:17px;font-weight:800;color:var(--ink-950);margin-bottom:10px;}
  .scene-body p{font-size:14.5px;color:var(--ink-500);line-height:1.82;}
  .scene-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}

  /* ============ 流程 ============ */
  .steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;counter-reset:step;}
  .step{
    position:relative;
    background:#FFFFFF;
    border:1px solid var(--line);
    border-radius:var(--r-md);
    padding:26px 22px;
    transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
  }
  .step:hover{border-color:var(--lime-700);box-shadow:var(--sh-md);transform:translateY(-4px);}
  .step-num{
    width:40px;
    height:40px;
    border-radius:12px;
    background:rgba(184,255,46,.35);
    color:var(--ink-950);
    font-weight:800;
    font-size:17px;
    display:grid;
    place-items:center;
    font-variant-numeric:tabular-nums;
    margin-bottom:16px;
  }
  .step h3{font-size:16.5px;font-weight:800;color:var(--ink-950);margin-bottom:8px;}
  .step p{font-size:14px;color:var(--ink-500);line-height:1.8;}

  /* ============ 订阅 / 咨询 ============ */
  .subscribe-grid{
    display:grid;
    grid-template-columns:7fr 5fr;
    gap:32px;
    align-items:start;
  }
  .form-card{
    background:#FFFFFF;
    border:1px solid var(--line);
    border-radius:var(--r-md);
    box-shadow:var(--sh-md);
    padding:28px;
  }
  .field{margin-bottom:18px;}
  .field label{
    display:block;
    font-size:13px;
    font-weight:600;
    color:var(--ink-500);
    margin-bottom:8px;
  }
  .field input,
  .field select,
  .field textarea{
    width:100%;
    height:44px;
    padding:0 14px;
    border:1px solid var(--line);
    border-radius:var(--r-sm);
    background:#FFFFFF;
    font-size:15px;
    outline:0;
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .field textarea{height:auto;padding:12px 14px;line-height:1.7;resize:vertical;}
  .field input:focus,
  .field select:focus,
  .field textarea:focus{
    border-color:var(--lime-700);
    box-shadow:0 0 0 3px rgba(184,255,46,.32);
  }
  .form-note{
    margin-top:14px;
    padding:12px 14px;
    border-radius:var(--r-sm);
    background:rgba(184,255,46,.22);
    border:1px solid rgba(77,122,0,.25);
    color:var(--lime-700);
    font-size:14px;
    font-weight:600;
  }
  .side-card{
    background:var(--ink-900);
    color:#FFFFFF;
    border-radius:var(--r-md);
    padding:26px;
    border:1px solid rgba(184,255,46,.22);
  }
  .side-card h3{font-size:17px;font-weight:800;color:#FFFFFF;margin-bottom:12px;}
  .side-card p{font-size:14.5px;color:rgba(255,255,255,.7);line-height:1.85;}
  .side-list{margin-top:18px;display:flex;flex-direction:column;gap:12px;}
  .side-list li{
    display:flex;
    gap:10px;
    font-size:14px;
    color:rgba(255,255,255,.82);
  }
  .side-list i{color:var(--lime);margin-top:5px;}
  .progress-wrap{margin-top:22px;}
  .progress-label{
    display:flex;
    justify-content:space-between;
    font-size:13px;
    color:rgba(255,255,255,.66);
    margin-bottom:8px;
  }
  .progress{
    height:6px;
    border-radius:999px;
    background:rgba(255,255,255,.14);
    overflow:hidden;
  }
  .progress span{display:block;height:100%;width:78%;background:var(--lime);border-radius:999px;}
  .tag-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
  .tag{
    display:inline-flex;
    align-items:center;
    height:34px;
    padding:0 14px;
    border-radius:999px;
    background:#FFFFFF;
    border:1px solid var(--line);
    font-size:13.5px;
    color:var(--ink-700);
    transition:border-color .2s ease,color .2s ease,background .2s ease;
  }
  .tag:hover{border-color:var(--lime-700);color:var(--ink-950);background:#F4FFDD;}

  /* ============ FAQ ============ */
  .faq-list{border-top:1px solid var(--line);}
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-item summary{
    list-style:none;
    cursor:pointer;
    min-height:56px;
    padding:18px 0;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:18px;
    font-size:16px;
    font-weight:700;
    color:var(--ink-950);
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-icon{
    width:28px;
    height:28px;
    border-radius:9px;
    background:var(--bg);
    border:1px solid var(--line);
    color:var(--ink-950);
    display:grid;
    place-items:center;
    font-size:13px;
    flex-shrink:0;
    transition:transform .24s ease,background .2s ease,color .2s ease;
  }
  .faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--lime);border-color:var(--lime);}
  .faq-item[open] summary{color:var(--ink-950);}
  .faq-body{
    padding:0 0 22px;
    max-width:840px;
    font-size:15px;
    color:var(--ink-500);
    line-height:1.88;
  }

  /* ============ CTA 条幅 ============ */
  .cta-band{
    background:var(--ink-950);
    color:#FFFFFF;
    border-radius:var(--r-lg);
    padding:44px 48px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:32px;
    border:1px solid rgba(184,255,46,.2);
    box-shadow:var(--sh-lg);
  }
  .cta-band h2{
    font-size:clamp(20px,2.2vw,26px);
    font-weight:800;
    color:#FFFFFF;
    line-height:1.35;
  }
  .cta-band p{
    margin-top:10px;
    font-size:15px;
    color:rgba(255,255,255,.68);
    max-width:620px;
  }
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex-shrink:0;}

  /* ============ 页脚 ============ */
  .site-footer{
    background:var(--ink-950);
    color:rgba(255,255,255,.72);
    padding:64px 0 24px;
    margin-top:80px;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.6fr 1fr 1fr 1.4fr;
    gap:36px;
    padding-bottom:40px;
    border-bottom:1px solid rgba(255,255,255,.1);
  }
  .footer-brand{
    display:flex;
    align-items:center;
    gap:10px;
    font-size:17px;
    font-weight:800;
    color:#FFFFFF;
    margin-bottom:16px;
  }
  .footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:360px;}
  .footer-title{
    font-size:15px;
    font-weight:800;
    color:#FFFFFF;
    margin-bottom:16px;
  }
  .footer-links li{margin-bottom:10px;}
  .footer-links a{
    font-size:14px;
    color:rgba(255,255,255,.66);
    transition:color .2s ease;
  }
  .footer-links a:hover{color:var(--lime);}
  .footer-contact li{
    display:flex;
    gap:10px;
    font-size:14px;
    color:rgba(255,255,255,.66);
    margin-bottom:12px;
    line-height:1.75;
  }
  .footer-contact i{color:var(--lime);margin-top:5px;flex-shrink:0;}
  .footer-contact a{color:rgba(255,255,255,.66);}
  .footer-contact a:hover{color:var(--lime);}
  .footer-bottom{
    display:flex;
    flex-wrap:wrap;
    justify-content:space-between;
    gap:10px;
    padding-top:22px;
    font-size:12.5px;
    color:rgba(255,255,255,.46);
  }

  /* ============ 响应式 ============ */
  @media (max-width:1279px){
    .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
  }
  @media (max-width:1023px){
    .container{padding:0 24px;}
    .nav-links{display:none;}
    .menu-toggle{display:grid;place-items:center;}
    .mobile-drawer{display:block;}
    .mobile-drawer.open{max-height:420px;}
    .search-box input{width:110px;}
    .section{padding:64px 0;}
    .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
    .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
    .subscribe-grid{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
    .cta-band{flex-direction:column;align-items:flex-start;padding:36px 32px;}
  }
  @media (max-width:767px){
    body{font-size:15.5px;}
    .container{padding:0 16px;}
    .header-inner{gap:12px;height:64px;}
    .brand span.brand-text{font-size:16px;}
    .search-box{display:none;}
    .hero{padding:44px 0 64px;}
    .hero-sub{font-size:16px;}
    .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));}
    .hero-actions .btn{width:100%;}
    .hero-trust{gap:14px;font-size:13.5px;}
    .section{padding:56px 0;}
    .grid-4,.grid-3,.grid-2,.steps{grid-template-columns:1fr;}
    .server-row{
      grid-template-columns:64px minmax(0,1fr);
      gap:14px;
      padding:16px;
    }
    .srv-actions{
      grid-column:1 / -1;
      justify-content:flex-start;
    }
    .srv-actions .btn{flex:1;}
    .date-chip{width:56px;height:56px;border-radius:12px;}
    .date-chip .d-top{font-size:14px;}
    .date-chip .d-bot{font-size:12px;}
    .faq-item summary{font-size:15.5px;}
    .form-card{padding:22px;}
    .cta-band{padding:28px 22px;}
    .footer-grid{grid-template-columns:1fr;}
    .footer-bottom{flex-direction:column;}
  }
  @media (max-width:520px){
    .hero-stat b{font-size:22px;}
    .srv-title{font-size:16px;}
    .srv-meta{gap:10px;font-size:13px;}
  }