/* roulang page: index */
/* ===================== 设计变量 ===================== */
:root{
  --bg-0:#050A12;
  --bg-1:#0A1420;
  --bg-2:#101E2E;
  --line:rgba(126,196,214,.16);
  --line-strong:rgba(47,224,198,.38);
  --primary:#2FE0C6;
  --primary-deep:#12B7A4;
  --primary-soft:rgba(47,224,198,.10);
  --accent:#FF9A4D;
  --tag:#7E6BFF;
  --text-1:#E7F1F7;
  --text-2:#9CB0C0;
  --text-3:#6C8092;
  --glow:0 0 0 1px rgba(47,224,198,.22), 0 14px 40px -14px rgba(47,224,198,.45);
  --shadow-1:0 24px 60px -34px rgba(0,0,0,.9);
  --r-card:18px;
  --r-img:14px;
  --r-sm:12px;
  --r-pill:999px;
  --sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--sp-7:48px;--sp-8:64px;--sp-9:96px;
  --t:200ms ease;
  --font:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
/* ===================== 基础重置 ===================== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;padding:0;font-family:var(--font);font-size:16px;line-height:1.85;
  color:var(--text-2);background:var(--bg-0);letter-spacing:0;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    radial-gradient(600px 600px at 50% -6%, rgba(47,224,198,.10), transparent 72%),
    linear-gradient(rgba(126,196,214,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(126,196,214,.04) 1px, transparent 1px);
  background-size:auto,44px 44px,44px 44px;
}
h1,h2,h3,h4{margin:0;color:var(--text-1);font-weight:700;letter-spacing:0;font-style:normal;}
h1{font-size:52px;line-height:1.2;}
h2{font-size:27px;line-height:1.3;font-weight:600;}
h3{font-size:19px;line-height:1.4;font-weight:600;}
p{margin:0;}
a{color:var(--primary);text-decoration:none;transition:color var(--t),background var(--t),transform var(--t);}
a:hover{color:#5FF0DA;}
img{max-width:100%;display:block;border:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(47,224,198,.28);color:var(--text-1);}
/* ===================== 栅格覆盖 ===================== */
.row{max-width:1200px;margin-left:auto;margin-right:auto;padding-left:12px;padding-right:12px;}
.row .row{margin-left:0;margin-right:0;}
.row .column,.row .columns{padding-left:12px;padding-right:12px;}
.container{width:100%;max-width:1224px;margin:0 auto;padding-left:12px;padding-right:12px;}
.section{position:relative;z-index:1;padding:96px 0;}
.section--tight{padding:64px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap;}
.section-head h2{position:relative;padding-left:16px;}
.section-head h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;background:var(--primary);box-shadow:0 0 12px rgba(47,224,198,.7);}
.section-sub{font-size:15px;color:var(--text-3);line-height:1.75;max-width:640px;margin-top:8px;}
.link-more{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px;}
.link-more:hover{gap:10px;}
/* ===================== 按钮 ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t),filter var(--t);
  white-space:nowrap;
}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-deep));color:#04121A;font-weight:700;box-shadow:0 10px 30px -16px rgba(47,224,198,.8);}
.btn-primary:hover{color:#04121A;filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 16px 44px -8px rgba(47,224,198,.55);}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 3px 10px rgba(0,0,0,.35);}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--primary);}
.btn-ghost:hover{background:var(--primary-soft);color:var(--primary);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-text{background:none;border:none;min-height:auto;padding:0;color:var(--primary);font-weight:600;border-bottom:1px solid transparent;}
.btn-text:hover{border-bottom-color:var(--primary);}
/* ===================== 徽章 · 标签 ===================== */
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:6px;font-size:12px;font-weight:600;background:rgba(47,224,198,.12);color:var(--primary);white-space:nowrap;}
.badge-tag{background:rgba(126,107,255,.14);color:#B4A8FF;}
.badge-amber{background:rgba(255,154,77,.14);color:var(--accent);}
.tag-pill{display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-pill);font-size:13px;color:var(--text-2);background:var(--bg-2);border:1px solid var(--line);}
.tag-pill:hover{color:var(--primary);border-color:var(--line-strong);}
/* ===================== 玻璃卡 ===================== */
.glass{
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid var(--line);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  backdrop-filter:blur(16px) saturate(120%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.10);
  border-radius:var(--r-card);
}
/* ===================== 顶部导航 ===================== */
.site-header{
  position:sticky;top:0;z-index:80;width:100%;height:72px;display:flex;align-items:center;
  background:linear-gradient(180deg,rgba(5,10,18,.72),rgba(5,10,18,.20));
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,backdrop-filter .25s ease;
}
.site-header.is-scrolled{
  background:rgba(5,10,18,.85);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  backdrop-filter:blur(16px) saturate(120%);
  border-bottom-color:var(--line);
}
.header-inner{width:100%;max-width:1224px;margin:0 auto;padding:0 12px;}
.header-grid{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px;}
.nav-left,.nav-right{display:flex;align-items:center;gap:26px;}
.nav-left{justify-content:flex-start;}
.nav-right{justify-content:flex-end;}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--text-2);padding:6px 2px;line-height:1.2;}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;}
.nav-link:hover{color:var(--text-1);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--primary);}
.nav-link.is-active::after{transform:scaleX(1);}
.brand{display:inline-flex;align-items:center;gap:10px;justify-self:center;}
.brand-mark{width:30px;height:30px;flex:0 0 auto;}
.brand-text{font-size:17px;font-weight:700;color:var(--text-1);white-space:nowrap;}
.brand:hover .brand-text{color:var(--primary);}
.menu-toggle{
  display:none;align-items:center;justify-content:center;width:44px;height:44px;
  border-radius:12px;border:1px solid var(--line);background:var(--bg-2);color:var(--text-1);
}
.menu-toggle span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative;}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px;}
.menu-toggle span::before{top:-6px;}
.menu-toggle span::after{top:6px;}
.mobile-panel{
  display:none;position:absolute;left:0;right:0;top:100%;overflow:hidden;max-height:0;
  background:rgba(5,10,18,.97);-webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);border-bottom:1px solid var(--line);transition:max-height .3s ease;
  border-radius:0 0 var(--r-card) var(--r-card);
}
.mobile-panel.is-open{max-height:560px;}
.mobile-panel a.mobile-link{
  display:flex;align-items:center;height:48px;padding:0 20px;font-size:16px;color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.mobile-panel a.mobile-link.is-active{color:var(--primary);}
.mobile-panel .mobile-cta{padding:16px 20px 20px;}
.mobile-panel .mobile-cta .btn{width:100%;}
/* ===================== Hero ===================== */
.hero{position:relative;z-index:1;padding:88px 0 72px;}
.hero-copy{padding-right:24px;}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--primary);background:rgba(47,224,198,.10);border:1px solid var(--line-strong);border-radius:var(--r-pill);padding:6px 14px;margin-bottom:24px;}
.hero-copy h1{max-width:620px;}
.hero-copy h1 .hl{background:linear-gradient(180deg,transparent 62%,rgba(47,224,198,.28) 62%);}
.hero-lead{font-size:16px;line-height:1.85;color:var(--text-2);max-width:560px;margin-top:20px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.hero-media{position:relative;margin-top:16px;}
.hero-img-wrap{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-1);}
.hero-img-wrap img{width:100%;height:400px;object-fit:cover;}
.hero-img-wrap::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,10,18,.05) 30%,rgba(5,10,18,.92) 100%);}
.hero-stats{position:absolute;left:20px;right:20px;bottom:20px;display:flex;gap:8px;padding:14px 16px;border-radius:var(--r-sm);}
.hero-stats .stat{flex:1 1 0;min-width:0;text-align:left;}
.hero-stats .stat-num{display:block;font-size:20px;font-weight:700;color:var(--accent);line-height:1.2;}
.hero-stats .stat-label{display:block;font-size:12px;color:var(--text-3);white-space:nowrap;}
/* ===================== 快捷入口 ===================== */
.quick-bar{position:relative;z-index:1;padding:8px 0 0;}
.quick-scroll{display:flex;gap:12px;flex-wrap:wrap;}
.quick-pill{
  display:inline-flex;align-items:center;gap:10px;min-height:48px;padding:0 20px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--text-1);
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid var(--line);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.10);
}
.quick-pill i{width:8px;height:8px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px rgba(47,224,198,.9);flex:0 0 auto;}
.quick-pill:hover{color:var(--primary);border-color:var(--line-strong);transform:translateY(-2px);box-shadow:var(--glow);}
/* ===================== 合集目录 ===================== */
.catalog-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0 48px;}
.catalog-item{display:flex;gap:24px;padding:24px 0;border-bottom:1px solid var(--line);}
.catalog-item:nth-child(even){margin-top:32px;}
.catalog-num{flex:0 0 64px;font-size:40px;font-weight:700;line-height:1.1;color:var(--accent);opacity:.85;font-variant-numeric:tabular-nums;}
.catalog-item h3{margin-bottom:8px;}
.catalog-item p{font-size:14px;line-height:1.75;color:var(--text-3);}
.catalog-item:hover .catalog-num{opacity:1;}
.catalog-item:hover h3{color:var(--primary);}
/* ===================== 精选条目 ===================== */
.bento-card{
  display:block;position:relative;overflow:hidden;height:100%;
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.bento-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-1),var(--glow);}
.bento-card:hover .bento-img img{transform:scale(1.03);}
.bento-img{overflow:hidden;border-radius:var(--r-img);margin:14px 14px 0;}
.bento-img img{width:100%;height:200px;object-fit:cover;transition:transform .35s ease;}
.bento-large .bento-img img{height:308px;}
.bento-body{padding:18px 20px 22px;}
.bento-body h3{margin:10px 0 8px;}
.bento-body p{font-size:14px;line-height:1.75;color:var(--text-3);}
.bento-stack{display:flex;flex-direction:column;gap:24px;height:100%;}
.bento-stack .bento-card{height:auto;}
.bento-stack .bento-img img{height:146px;}
.bento-row{margin-top:24px;}
/* ===================== 最新信息 ===================== */
.news-grid{margin-top:8px;}
.news-card{
  display:flex;gap:16px;padding:16px;height:100%;
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.news-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-1),var(--glow);}
.news-card__thumb{flex:0 0 200px;border-radius:var(--r-sm);overflow:hidden;display:block;}
.news-card__thumb img{width:200px;height:125px;object-fit:cover;}
.news-card__body{display:flex;flex-direction:column;min-width:0;flex:1 1 auto;}
.news-card__title{font-size:17px;font-weight:600;color:var(--text-1);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card__title:hover{color:var(--primary);}
.news-card__desc{font-size:14px;line-height:1.75;color:var(--text-3);margin-top:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card__meta{display:flex;align-items:center;gap:10px;margin-top:auto;padding-top:12px;font-size:13px;color:var(--text-3);}
.news-card__time{font-variant-numeric:tabular-nums;}
.news-card__arrow{margin-left:auto;color:var(--primary);font-weight:700;}
.empty-state{padding:48px 24px;text-align:center;border-radius:var(--r-card);}
.empty-state__icon{width:52px;height:52px;margin:0 auto 16px;border-radius:14px;background:var(--primary-soft);border:1px solid var(--line-strong);display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:22px;}
.empty-state p{margin-bottom:20px;font-size:15px;color:var(--text-3);}
/* ===================== 相关推荐 ===================== */
.mini-list{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.mini-item{display:block;padding:20px 20px 20px 22px;background:var(--bg-1);border:1px solid var(--line);border-left:3px solid var(--primary);border-radius:14px;transition:transform var(--t),border-color var(--t),background var(--t);}
.mini-item:hover{transform:translateY(-4px);border-color:var(--line-strong);border-left-color:var(--primary);background:var(--bg-2);}
.mini-item h3{font-size:16px;line-height:1.55;margin-bottom:10px;}
.mini-item:hover h3{color:var(--primary);}
.mini-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3);}
/* ===================== 步骤条 ===================== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative;margin-top:12px;}
.step{position:relative;padding:0 20px 0 0;}
.step::before{content:"";position:absolute;left:46px;right:20px;top:22px;height:1px;background:linear-gradient(90deg,var(--line-strong),transparent);}
.step:last-child::before{display:none;}
.step-num{
  position:relative;z-index:1;display:flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:50%;font-size:16px;font-weight:700;color:var(--accent);
  background:var(--bg-2);border:1px solid var(--line-strong);margin-bottom:18px;
}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14px;line-height:1.75;color:var(--text-3);}
/* ===================== FAQ ===================== */
.faq-wrap{max-width:880px;margin:0 auto;}
.faq-item{background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);margin-bottom:12px;overflow:hidden;transition:border-color var(--t);}
.faq-item.is-open{border-color:var(--line-strong);}
.faq-question{
  display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;
  padding:20px 22px;background:none;border:0;text-align:left;
  font-size:17px;font-weight:600;color:var(--text-1);line-height:1.5;
}
.faq-question:hover{color:var(--primary);}
.faq-icon{flex:0 0 auto;width:22px;height:22px;position:relative;transition:transform .2s ease;color:var(--primary);}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:currentColor;border-radius:2px;}
.faq-icon::before{left:50%;top:3px;bottom:3px;width:2px;transform:translateX(-50%);}
.faq-icon::after{top:50%;left:3px;right:3px;height:2px;transform:translateY(-50%);}
.faq-item.is-open .faq-icon{transform:rotate(180deg);}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .2s ease;}
.faq-item.is-open .faq-answer{max-height:320px;}
.faq-answer p{padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--text-2);}
/* ===================== CTA 条 ===================== */
.cta-bar{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:30px 32px;border-radius:var(--r-card);flex-wrap:wrap;}
.cta-bar h2{font-size:22px;}
.cta-bar p{font-size:15px;color:var(--text-3);margin-top:8px;line-height:1.75;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
/* ===================== 页脚 ===================== */
.site-footer{position:relative;z-index:1;margin-top:48px;padding:64px 0 32px;background:var(--bg-1);border-top:1px solid var(--line);}
.site-footer::before{content:"";position:absolute;left:0;right:0;top:-1px;height:1px;background:linear-gradient(90deg,transparent,rgba(47,224,198,.55),transparent);}
.footer-grid{display:grid;grid-template-columns:5fr 3fr 3fr 3fr;gap:32px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-desc{font-size:14px;line-height:1.8;color:var(--text-3);max-width:340px;margin-bottom:18px;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.footer-col h4{font-size:15px;color:var(--text-1);margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{display:inline-block;font-size:14px;color:var(--text-3);}
.footer-col a:hover{color:var(--primary);transform:translateX(-2px);}
.footer-info{font-size:13px;line-height:1.9;color:var(--text-3);}
.footer-info a{color:var(--text-2);}
.footer-info a:hover{color:var(--primary);}
.footer-bottom{margin-top:48px;padding-top:24px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--text-3);}
/* ===================== Toast ===================== */
.toast{
  position:fixed;left:50%;bottom:36px;transform:translate(-50%,20px);
  padding:14px 24px;border-radius:var(--r-pill);font-size:14px;color:var(--text-1);
  background:rgba(10,20,32,.92);border:1px solid var(--line-strong);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  box-shadow:var(--glow);opacity:0;pointer-events:none;transition:opacity .25s ease,transform .25s ease;z-index:120;
}
.toast.is-show{opacity:1;transform:translate(-50%,0);}
/* ===================== 响应式 ===================== */
@media (max-width:1024px){
  .section{padding:72px 0;}
  .section--tight{padding:56px 0;}
  h1{font-size:38px;}
  h2{font-size:24px;}
  .hero{padding:56px 0 48px;}
  .hero-copy{padding-right:0;margin-bottom:32px;}
  .hero-copy h1{max-width:none;}
  .hero-img-wrap img{height:320px;}
  .nav-left,.nav-right .nav-link{display:none;}
  .nav-right{gap:12px;}
  .menu-toggle{display:inline-flex;}
  .header-grid{grid-template-columns:44px 1fr auto;}
  .brand{justify-self:center;}
  .mobile-panel{display:block;}
  .brand-text{font-size:15px;}
  .catalog-grid{grid-template-columns:1fr;gap:0;}
  .catalog-item:nth-child(even){margin-top:0;}
  .mini-list{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;gap:24px;}
  .step{padding:0;}
  .step::before{left:22px;right:auto;top:52px;bottom:-8px;width:1px;height:auto;background:linear-gradient(180deg,var(--line-strong),transparent);}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-brand{grid-column:1 / -1;}
  .news-card__thumb{flex:0 0 160px;}
  .news-card__thumb img{width:160px;height:100px;}
}
@media (max-width:640px){
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  body{font-size:15px;line-height:1.8;}
  h1{font-size:30px;line-height:1.28;}
  h2{font-size:21px;}
  h3{font-size:17px;}
  .hero{padding:44px 0 40px;}
  .hero-img-wrap img{height:230px;}
  .hero-stats{position:static;margin-top:12px;left:0;right:0;bottom:0;overflow-x:auto;}
  .hero-stats .stat{min-width:96px;}
  .quick-scroll{flex-wrap:nowrap;overflow-x:auto;padding-bottom:6px;}
  .quick-pill{flex:0 0 auto;}
  .news-card{flex-direction:row;gap:12px;padding:12px;}
  .news-card__thumb{flex:0 0 120px;}
  .news-card__thumb img{width:120px;height:80px;}
  .news-card__title{font-size:15px;}
  .news-card__desc{display:none;}
  .catalog-item{gap:16px;padding:20px 0;}
  .catalog-num{flex:0 0 44px;font-size:30px;}
  .bento-large .bento-img img{height:220px;}
  .cta-bar{padding:24px 20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .faq-question{font-size:16px;padding:16px 18px;}
  .faq-answer p{padding:0 18px 18px;}
}

/* roulang page: article */
:root{
  --bg-0:#050A12;
  --bg-1:#0A1420;
  --bg-2:#101E2E;
  --line:rgba(126,196,214,.16);
  --line-strong:rgba(47,224,198,.38);
  --primary:#2FE0C6;
  --primary-deep:#12B7A4;
  --accent:#FF9A4D;
  --tag:#7E6BFF;
  --text-1:#E7F1F7;
  --text-2:#9CB0C0;
  --text-3:#6C8092;
  --glow:0 0 0 1px rgba(47,224,198,.22), 0 14px 40px -14px rgba(47,224,198,.45);
  --shadow:0 24px 60px -34px rgba(0,0,0,.9);
  --r-card:18px;
  --r-img:14px;
  --r-sm:12px;
  --pill:999px;
  --t:200ms ease;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background-color:var(--bg-0);
  color:var(--text-2);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(600px 420px at 50% -90px, rgba(47,224,198,.10), transparent 72%),
    repeating-linear-gradient(0deg, rgba(126,196,214,.04) 0 1px, transparent 1px 44px),
    repeating-linear-gradient(90deg, rgba(126,196,214,.04) 0 1px, transparent 1px 44px);
}
body > *{position:relative;z-index:1}

h1,h2,h3,h4,h5,h6{color:var(--text-1);font-weight:600;margin:0;line-height:1.3;letter-spacing:0}
p{margin:0 0 16px}
a{color:var(--primary);text-decoration:none;transition:color var(--t),background var(--t),transform var(--t)}
a:hover{color:var(--primary)}
img{max-width:100%;display:block;border-style:none}
button{font-family:inherit}
ul,ol{padding-left:22px}
::selection{background:rgba(47,224,198,.28);color:#fff}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section--tight{padding:64px 0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:var(--pill);
  font-size:15px;font-weight:700;letter-spacing:0;cursor:pointer;
  border:1px solid transparent;text-decoration:none;
  transition:transform var(--t),box-shadow var(--t),background var(--t),border-color var(--t),color var(--t);
}
.btn-primary{
  background:linear-gradient(135deg,#2FE0C6 0%,#12B7A4 100%);
  color:#04121A;
  box-shadow:0 10px 28px -16px rgba(47,224,198,.7);
}
.btn-primary:hover{
  color:#04121A;transform:translateY(-2px);
  filter:brightness(1.08);
  box-shadow:0 16px 44px -8px rgba(47,224,198,.55);
}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 10px rgba(4,18,26,.35)}
.btn-ghost{
  background:transparent;color:var(--primary);border:1px solid var(--line-strong);
}
.btn-ghost:hover{background:rgba(47,224,198,.08);color:var(--primary);transform:translateY(-2px)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:14px;font-weight:600;
  background:none;border:none;padding:6px 0;cursor:pointer;
  border-bottom:1px solid transparent;
}
.btn-text:hover{color:var(--primary);border-bottom-color:var(--primary)}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}

/* ---------- 徽章 / 标签 ---------- */
.tag-pill{
  display:inline-block;padding:5px 12px;border-radius:6px;font-size:13px;line-height:1.4;
  color:var(--primary);background:rgba(47,224,198,.12);border:1px solid rgba(47,224,198,.18);
}
.cat-badge{
  display:inline-block;padding:5px 12px;border-radius:6px;font-size:13px;line-height:1.4;
  color:#B7AFFF;background:rgba(126,107,255,.14);border:1px solid rgba(126,107,255,.28);
}
.meta-dot{color:var(--text-3);margin:0 8px}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background var(--t),border-color var(--t),backdrop-filter var(--t);
}
.site-header.is-scrolled{
  background:rgba(5,10,18,.85);
  backdrop-filter:blur(16px) saturate(120%);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  border-bottom-color:var(--line);
}
.header-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  grid-template-areas:"left brand right";
  align-items:center;
  height:72px;
}
.nav-left{grid-area:left;display:flex;align-items:center;gap:28px}
.nav-right{grid-area:right;display:flex;align-items:center;justify-content:flex-end;gap:22px}
.brand{grid-area:brand;display:flex;align-items:center;gap:10px;text-decoration:none}
.brand:hover{color:inherit}
.brand-mark{width:32px;height:32px;flex:none}
.brand-text{color:var(--text-1);font-size:18px;font-weight:700;white-space:nowrap}
.nav-link{
  position:relative;display:inline-block;padding:8px 0;
  color:var(--text-2);font-size:15px;font-weight:500;text-decoration:none;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--primary-deep));
  transform:scaleX(0);transform-origin:left;transition:transform var(--t);
}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--primary)}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-cta{min-height:40px;padding:0 20px;font-size:14px}
.menu-toggle{
  grid-area:left;display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:var(--r-sm);
  background:var(--bg-2);border:1px solid var(--line);color:var(--text-1);cursor:pointer;
  transition:border-color var(--t),color var(--t);
}
.menu-toggle:hover{border-color:var(--line-strong);color:var(--primary)}
.mobile-panel{
  display:none;overflow:hidden;max-height:0;
  background:rgba(5,10,18,.96);
  backdrop-filter:blur(16px) saturate(120%);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  border-bottom:1px solid var(--line);
  transition:max-height 260ms ease;
}
.mobile-panel.is-open{max-height:420px}
.mobile-panel a{
  display:flex;align-items:center;min-height:48px;padding:0 24px;
  font-size:16px;color:var(--text-2);text-decoration:none;border-bottom:1px solid var(--line);
}
.mobile-panel a:hover,.mobile-panel a.is-active{color:var(--primary);background:rgba(47,224,198,.05)}
.mobile-panel .mobile-cta{padding:16px 24px 22px;border-bottom:none}
.mobile-panel .mobile-cta .btn{width:100%}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:6px;
  font-size:13px;color:var(--text-3);padding:26px 0 0;
}
.breadcrumb a{color:var(--text-3);text-decoration:none}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:rgba(108,128,146,.6)}
.breadcrumb .current{color:var(--text-2)}

/* ---------- 文章头 ---------- */
.article-head{padding:22px 0 0;max-width:900px}
.article-head h1{
  font-size:38px;line-height:1.25;font-weight:700;color:var(--text-1);
  margin:16px 0 18px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  font-size:13px;color:var(--text-3);padding-bottom:8px;
}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:rgba(108,128,146,.7)}
.article-cover{
  margin:26px 0 40px;border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--line);background:var(--bg-1);
  box-shadow:var(--shadow);
}
.article-cover img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover}

/* ---------- 布局 ---------- */
.article-layout{margin-left:-12px;margin-right:-12px}
.article-layout > .column{padding-left:12px;padding-right:12px;float:none}
.article-main{min-width:0}
.article-side{min-width:0}

/* ---------- 正文排版 ---------- */
.article-body{max-width:800px;font-size:17px;line-height:1.95;color:var(--text-2);word-wrap:break-word}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 20px;font-size:17px;line-height:1.95}
.article-body h2{
  position:relative;font-size:26px;line-height:1.3;font-weight:600;color:var(--text-1);
  margin:46px 0 18px;padding-left:14px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.24em;bottom:.24em;width:3px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 12px rgba(47,224,198,.65);
}
.article-body h3{font-size:20px;line-height:1.4;font-weight:600;color:var(--text-1);margin:32px 0 12px}
.article-body h4{font-size:17px;font-weight:600;color:var(--text-1);margin:24px 0 10px}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:24px}
.article-body li{margin:8px 0;line-height:1.85}
.article-body li::marker{color:var(--primary)}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;border-left:3px solid var(--accent);
  background:var(--bg-1);border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--text-1);
  font-size:16px;line-height:1.85;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);border:1px solid var(--line);margin:24px 0;height:auto}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(47,224,198,.35)}
.article-body a:hover{border-bottom-color:var(--primary)}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;line-height:1.7}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left}
.article-body th{background:var(--bg-2);color:var(--text-1);font-weight:600}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.03)}
.article-body code{
  background:var(--bg-2);border:1px solid var(--line);border-radius:6px;
  padding:2px 6px;font-size:15px;color:var(--primary);
}
.article-body hr{border:none;border-top:1px solid var(--line);margin:36px 0}

/* ---------- 空态 ---------- */
.empty-state{
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid var(--line);border-radius:var(--r-card);
  backdrop-filter:blur(16px) saturate(120%);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  padding:56px 32px;text-align:center;
}
.empty-state .empty-icon{
  width:56px;height:56px;margin:0 auto 18px;border-radius:16px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(47,224,198,.10);border:1px solid rgba(47,224,198,.24);
  color:var(--primary);font-size:22px;
}
.empty-state h2{font-size:22px;margin-bottom:12px;padding:0}
.empty-state h2::before{display:none}
.empty-state p{font-size:15px;color:var(--text-3);margin-bottom:24px}

/* ---------- 标签行 / CTA ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:38px 0 0;padding-top:26px;border-top:1px solid var(--line)}
.action-bar{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
  margin:26px 0 0;padding:22px 24px;border-radius:var(--r-card);
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid var(--line);
  backdrop-filter:blur(16px) saturate(120%);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.action-bar__text strong{display:block;color:var(--text-1);font-size:17px;font-weight:600;margin-bottom:4px}
.action-bar__text span{font-size:14px;color:var(--text-3)}
.action-bar__btns{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 相关推荐 ---------- */
.related{margin:56px 0 0}
.related h2{
  font-size:22px;font-weight:600;color:var(--text-1);margin-bottom:20px;
  display:flex;align-items:center;gap:10px;
}
.related h2::before{
  content:"";width:3px;height:18px;border-radius:2px;background:var(--primary);
  box-shadow:0 0 10px rgba(47,224,198,.6);
}
.related-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.related-card{
  display:block;padding:18px 20px;border-radius:var(--r-sm);
  background:var(--bg-1);border:1px solid var(--line);text-decoration:none;
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.related-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--glow)}
.related-card .rc-title{color:var(--text-1);font-size:16px;font-weight:600;line-height:1.5;margin-bottom:8px}
.related-card .rc-meta{font-size:13px;color:var(--text-3);display:flex;align-items:center;gap:10px}

/* ---------- 上一篇 / 下一篇 ---------- */
.post-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:56px 0 0}
.post-nav__item{
  display:block;padding:18px 20px;border-radius:var(--r-sm);
  background:var(--bg-1);border:1px solid var(--line);text-decoration:none;
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.post-nav__item:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--glow)}
.post-nav__label{display:block;font-size:13px;color:var(--text-3);margin-bottom:6px}
.post-nav__title{display:block;font-size:16px;font-weight:600;color:var(--text-1);line-height:1.5}
.post-nav-back{text-align:center;margin:26px 0 0}

/* ---------- 侧栏 ---------- */
.side-sticky{position:sticky;top:96px}
.side-card{
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;margin-bottom:20px;
}
.side-card h3{
  font-size:15px;font-weight:600;color:var(--text-1);margin-bottom:14px;
  display:flex;align-items:center;gap:8px;
}
.side-card h3::before{
  content:"";width:3px;height:14px;border-radius:2px;background:var(--primary);
  box-shadow:0 0 10px rgba(47,224,198,.6);
}
.side-list{list-style:none;margin:0;padding:0}
.side-list li{border-bottom:1px solid var(--line);}
.side-list li:last-child{border-bottom:none}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 0;font-size:14px;color:var(--text-2);text-decoration:none;
}
.side-list a:hover{color:var(--primary);transform:translateX(2px)}
.side-list a i{font-size:12px;color:var(--text-3)}
.side-list a:hover i{color:var(--primary)}
.side-cta{
  background:linear-gradient(160deg,rgba(47,224,198,.14),rgba(255,255,255,.02));
  border:1px solid rgba(47,224,198,.28);
}
.side-cta p{font-size:14px;color:var(--text-2);line-height:1.8;margin-bottom:16px}
.side-cta .btn{width:100%}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:80px;
  padding:64px 0 32px;
  background:linear-gradient(180deg,rgba(10,20,32,0) 0%,var(--bg-1) 40%);
  border-top:1px solid var(--line);
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,224,198,.55),transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:5fr 3fr 3fr 3fr;
  gap:40px;
}
.footer-brand .brand{margin-bottom:16px}
.footer-desc{font-size:14px;line-height:1.85;color:var(--text-3);max-width:420px;margin-bottom:18px}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px}
.footer-col h4{font-size:15px;font-weight:600;color:var(--text-1);margin-bottom:16px}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{margin-bottom:10px}
.footer-col a{
  font-size:14px;color:var(--text-3);text-decoration:none;display:inline-block;
  transition:color var(--t),transform var(--t);
}
.footer-col a:hover{color:var(--primary);transform:translateX(-2px)}
.footer-info p{font-size:14px;color:var(--text-3);margin:0 0 10px}
.footer-info a{color:var(--text-2)}
.footer-info a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-3);
}

/* ---------- Toast ---------- */
.toast{
  position:fixed;left:50%;bottom:36px;transform:translate(-50%,16px);
  padding:12px 22px;border-radius:var(--pill);
  background:rgba(10,20,32,.92);border:1px solid var(--line-strong);
  backdrop-filter:blur(16px) saturate(120%);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  color:var(--text-1);font-size:14px;z-index:120;
  opacity:0;pointer-events:none;transition:opacity var(--t),transform var(--t);
  box-shadow:var(--glow);
}
.toast.is-show{opacity:1;transform:translate(-50%,0)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .section{padding:72px 0}
  .header-inner{grid-template-columns:auto 1fr auto}
  .nav-left,.nav-right .nav-link{display:none}
  .menu-toggle{display:flex}
  .mobile-panel{display:block}
  .article-side{display:none}
  .article-head h1{font-size:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:640px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .header-inner{height:64px}
  .brand-text{font-size:16px}
  .breadcrumb{padding-top:18px}
  .article-head h1{font-size:26px;line-height:1.35}
  .article-cover{margin:20px 0 30px}
  .article-body,.article-body p{font-size:16px;line-height:1.9}
  .article-body h2{font-size:21px;margin:36px 0 14px}
  .article-body h3{font-size:18px}
  .related-grid,.post-nav{grid-template-columns:1fr}
  .action-bar{padding:18px}
  .action-bar__btns{width:100%}
  .action-bar__btns .btn{flex:1}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-bottom{flex-direction:column;gap:8px}
  .btn{min-height:44px}
}

/* roulang page: category1 */
:root{
  --bg-0:#050A12;
  --bg-1:#0A1420;
  --bg-2:#101E2E;
  --line:rgba(126,196,214,.16);
  --line-strong:rgba(47,224,198,.38);
  --primary:#2FE0C6;
  --primary-deep:#12B7A4;
  --accent:#FF9A4D;
  --tag:#7E6BFF;
  --text-1:#E7F1F7;
  --text-2:#9CB0C0;
  --text-3:#6C8092;
  --glow:0 0 0 1px rgba(47,224,198,.22), 0 14px 40px -14px rgba(47,224,198,.45);
  --shadow-card:0 24px 60px -34px rgba(0,0,0,.9);
  --radius-card:18px;
  --radius-img:14px;
  --radius-sm:12px;
  --radius-pill:999px;
  --dur:200ms;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background-color:var(--bg-0);
  color:var(--text-2);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    radial-gradient(600px 600px at 18% -8%, rgba(47,224,198,.10), transparent 72%),
    linear-gradient(rgba(126,196,214,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(126,196,214,.04) 1px, transparent 1px);
  background-size:auto,48px 48px,48px 48px;
}
img{max-width:100%;height:auto;display:block;border-style:none;}
a{color:var(--primary);text-decoration:none;transition:color var(--dur) ease,background var(--dur) ease,border-color var(--dur) ease;}
a:hover{color:var(--text-1);}
h1,h2,h3,h4{color:var(--text-1);margin:0;font-weight:600;letter-spacing:0;font-style:normal;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

.container{max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1;}
.row{max-width:none;margin-left:-12px;margin-right:-12px;}
.row .row{margin-left:-12px;margin-right:-12px;}
.columns,.column{padding-left:12px;padding-right:12px;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  border-bottom:1px solid transparent;
  transition:background var(--dur) ease,border-color var(--dur) ease;
}
.site-header.is-scrolled{
  background:rgba(5,10,18,.85);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  backdrop-filter:blur(16px) saturate(120%);
  border-bottom-color:var(--line);
}
.header-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  height:72px;
}
.nav-left,.nav-right{display:flex;align-items:center;gap:28px;}
.nav-right{justify-content:flex-end;}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--text-2);
  padding:6px 0;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:0;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--primary),rgba(47,224,198,0));
  transition:width var(--dur) ease;
}
.nav-link:hover{color:var(--text-1);}
.nav-link:hover::after{width:100%;}
.nav-link.is-active{color:var(--primary);}
.nav-link.is-active::after{width:100%;}

.brand{display:inline-flex;align-items:center;gap:10px;justify-self:center;}
.brand-mark{width:30px;height:30px;flex:none;}
.brand-text{
  font-size:17px;
  font-weight:700;
  color:var(--text-1);
  white-space:nowrap;
  letter-spacing:0;
}
.brand:hover .brand-text{color:var(--primary);}

.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-1);border-radius:2px;transition:transform var(--dur) ease,opacity var(--dur) ease;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.nav-panel{display:none;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:700;
  line-height:1;
  white-space:nowrap;
  transition:transform var(--dur) ease,filter var(--dur) ease,box-shadow var(--dur) ease,background var(--dur) ease,border-color var(--dur) ease;
}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#04121A;
  box-shadow:0 10px 30px -16px rgba(47,224,198,.7);
}
.btn-primary:hover{
  color:#04121A;
  filter:brightness(1.08);
  transform:translateY(-2px);
  box-shadow:0 16px 44px -8px rgba(47,224,198,.5);
}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 8px rgba(0,0,0,.25);}
.btn-ghost{
  background:transparent;
  border:1px solid rgba(47,224,198,.45);
  color:var(--primary);
}
.btn-ghost:hover{background:rgba(47,224,198,.08);color:var(--primary);border-color:var(--line-strong);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-text{
  height:auto;
  padding:0;
  color:var(--primary);
  font-size:15px;
  font-weight:600;
  border-radius:0;
}
.btn-text::after{
  content:"";
  display:block;
  height:1px;
  width:100%;
  background:linear-gradient(90deg,var(--primary),rgba(47,224,198,0));
  transform:scaleX(.35);
  transform-origin:left;
  transition:transform var(--dur) ease;
}
.btn-text:hover::after{transform:scaleX(1);}

/* ---------- Page hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:64px 0 72px;
  min-height:300px;
}
.page-hero__bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  opacity:.55;
}
.page-hero__bg::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(5,10,18,.6),rgba(5,10,18,.9) 58%,var(--bg-0) 100%);
}
.page-hero .container{position:relative;z-index:2;}

.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:18px;
}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:rgba(126,196,214,.35);}
.breadcrumb .current{color:var(--text-2);}

.page-hero h1{
  font-size:clamp(28px,4vw,40px);
  line-height:1.2;
  font-weight:700;
  margin-bottom:16px;
}
.page-hero__lead{
  font-size:16px;
  line-height:1.85;
  color:var(--text-2);
  max-width:640px;
}

.stat-card{
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  backdrop-filter:blur(16px) saturate(120%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  padding:22px 24px;
  margin-top:28px;
}
.stat-card__row{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:16px;
  padding:10px 0;
  border-bottom:1px solid var(--line);
}
.stat-card__row:last-child{border-bottom:none;}
.stat-card__num{
  font-size:22px;
  font-weight:700;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.stat-card__label{font-size:13px;color:var(--text-3);}

/* ---------- Sections ---------- */
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section-head{margin-bottom:40px;}
.section-head h2{
  font-size:clamp(22px,2.4vw,28px);
  line-height:1.3;
  position:relative;
  padding-left:16px;
  margin-bottom:12px;
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;
  top:6px;
  bottom:6px;
  width:3px;
  border-radius:2px;
  background:var(--primary);
  box-shadow:0 0 14px rgba(47,224,198,.75);
}
.section-head p{font-size:15px;color:var(--text-3);max-width:720px;}

.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:6px;
  font-size:12px;
  font-weight:600;
  background:rgba(47,224,198,.12);
  color:var(--primary);
  line-height:1;
}
.badge--tag{background:rgba(126,107,255,.14);color:#B4A9FF;}

/* ---------- Catalog wall ---------- */
.wall{margin-top:8px;}
.wall-col{padding-top:0;}
.wall-item{
  display:flex;
  gap:20px;
  padding:26px 20px;
  border-top:1px solid var(--line);
  border-radius:var(--radius-sm);
  transition:background var(--dur) ease,transform var(--dur) ease;
}
.wall-item:hover{background:var(--bg-1);transform:translateY(-2px);}
.wall-item__num{
  flex:none;
  width:52px;
  font-size:26px;
  font-weight:700;
  line-height:1.15;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
}
.wall-item__title{
  display:block;
  font-size:19px;
  font-weight:600;
  color:var(--text-1);
  line-height:1.4;
  margin-bottom:8px;
}
.wall-item__desc{
  display:block;
  font-size:14px;
  line-height:1.75;
  color:var(--text-2);
  margin-bottom:12px;
}
.wall-item__more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
}
.wall-item:hover .wall-item__more{color:var(--text-1);}

/* ---------- Checklist ---------- */
.checklist{
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:32px;
  box-shadow:var(--shadow-card);
}
.checklist h3{font-size:19px;margin-bottom:18px;}
.checklist li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  padding:12px 0;
  border-bottom:1px solid var(--line);
  font-size:15px;
  color:var(--text-2);
}
.checklist li:last-child{border-bottom:none;padding-bottom:0;}
.checklist .tick{
  flex:none;
  width:20px;
  height:20px;
  margin-top:4px;
  border-radius:50%;
  background:rgba(47,224,198,.14);
  color:var(--primary);
  font-size:12px;
  line-height:20px;
  text-align:center;
  font-weight:700;
}

/* ---------- Wide figure ---------- */
.wide-figure{
  margin:0;
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--bg-1);
  box-shadow:var(--shadow-card);
}
.wide-figure img{
  width:100%;
  aspect-ratio:16/8;
  object-fit:cover;
  border-radius:0;
}
.wide-figure figcaption{
  padding:20px 24px 24px;
  font-size:14px;
  line-height:1.75;
  color:var(--text-3);
  border-top:1px solid var(--line);
}
.wide-figure figcaption strong{display:block;color:var(--text-1);font-size:16px;font-weight:600;margin-bottom:6px;}

/* ---------- Prep list ---------- */
.prep-list li{
  display:flex;
  flex-wrap:wrap;
  gap:8px 20px;
  align-items:baseline;
  padding:20px 0 20px 20px;
  border-left:3px solid rgba(47,224,198,.35);
  border-bottom:1px solid var(--line);
  transition:border-color var(--dur) ease,background var(--dur) ease;
}
.prep-list li:hover{border-left-color:var(--primary);background:rgba(10,20,32,.6);}
.prep-list .prep-key{
  flex:none;
  min-width:96px;
  font-size:15px;
  font-weight:600;
  color:var(--text-1);
}
.prep-list .prep-val{font-size:14px;line-height:1.75;color:var(--text-2);flex:1 1 320px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;}
.accordion{background:transparent;border:none;margin:0;}
.accordion .accordion-item{
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color var(--dur) ease,box-shadow var(--dur) ease;
}
.accordion .accordion-item:hover{border-color:var(--line-strong);box-shadow:var(--glow);}
.accordion .accordion-title{
  position:relative;
  display:block;
  border:none;
  background:transparent;
  color:var(--text-1);
  font-size:17px;
  font-weight:600;
  line-height:1.5;
  padding:20px 56px 20px 24px;
}
.accordion .accordion-title:hover{color:var(--primary);background:transparent;}
.accordion .accordion-title::before{
  content:"+";
  position:absolute;
  right:22px;
  top:50%;
  transform:translateY(-50%);
  font-size:22px;
  font-weight:400;
  line-height:1;
  color:var(--primary);
  transition:transform var(--dur) ease;
}
.accordion .accordion-item.is-active .accordion-title::before{
  content:"−";
  transform:translateY(-50%) rotate(180deg);
}
.accordion .accordion-content{
  border:none;
  border-top:1px solid var(--line);
  background:transparent;
  color:var(--text-2);
  font-size:15px;
  line-height:1.85;
  padding:18px 24px 22px;
}

/* ---------- Recommend ---------- */
.rec-item{
  display:block;
  padding:18px 20px;
  border-left:3px solid rgba(47,224,198,.35);
  border-bottom:1px solid var(--line);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  transition:border-color var(--dur) ease,background var(--dur) ease,transform var(--dur) ease;
}
.rec-item:hover{border-left-color:var(--primary);background:var(--bg-1);transform:translateY(-2px);}
.rec-item__title{
  display:block;
  font-size:16px;
  font-weight:600;
  color:var(--text-1);
  line-height:1.5;
  margin-bottom:8px;
}
.rec-item__meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center;font-size:13px;color:var(--text-3);}

/* ---------- CTA bar ---------- */
.cta-bar{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:32px 36px;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  backdrop-filter:blur(16px) saturate(120%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.cta-bar h2{font-size:24px;line-height:1.35;margin-bottom:8px;}
.cta-bar p{font-size:14px;color:var(--text-3);}
.cta-bar__actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- Footer ---------- */
.site-footer{
  position:relative;
  margin-top:24px;
  padding:64px 0 32px;
  background:var(--bg-1);
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-1px;
  left:0;
  right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,224,198,.55),transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:5fr 3fr 3fr 3fr;
  gap:40px 32px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-desc{font-size:14px;line-height:1.8;color:var(--text-3);max-width:420px;margin-bottom:16px;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.tag-pill{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:var(--bg-2);
  font-size:12px;
  color:var(--text-2);
}
.footer-col h4{font-size:15px;font-weight:600;color:var(--text-1);margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{
  font-size:14px;
  color:var(--text-3);
  display:inline-block;
  transition:color var(--dur) ease,transform var(--dur) ease;
}
.footer-col ul li a:hover{color:var(--primary);transform:translateX(-2px);}
.footer-info p{font-size:14px;color:var(--text-3);margin-bottom:10px;}
.footer-info a{color:var(--text-2);}
.footer-info a:hover{color:var(--primary);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  margin-top:48px;
  padding-top:24px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
}

/* ---------- Toast ---------- */
.toast{
  position:fixed;
  left:50%;
  bottom:32px;
  transform:translate(-50%,16px);
  z-index:90;
  padding:12px 22px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line-strong);
  background:rgba(10,20,32,.92);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  color:var(--text-1);
  font-size:14px;
  opacity:0;
  pointer-events:none;
  transition:opacity var(--dur) ease,transform var(--dur) ease;
}
.toast.is-visible{opacity:1;transform:translate(-50%,0);}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .container{padding:0 20px;}
  .section{padding:72px 0;}
  .section--tight{padding:56px 0;}

  .header-inner{height:64px;grid-template-columns:auto 1fr auto;}
  .nav-left .nav-link{display:none;}
  .nav-right .nav-link{display:none;}
  .nav-toggle{display:inline-flex;}
  .brand{justify-self:center;}
  .brand-text{font-size:16px;}
  .nav-link::after{display:none;}

  .nav-panel{
    display:block;
    max-height:0;
    overflow:hidden;
    border-top:1px solid transparent;
    background:rgba(5,10,18,.96);
    -webkit-backdrop-filter:blur(16px);
    backdrop-filter:blur(16px);
    transition:max-height 320ms ease,border-color var(--dur) ease;
  }
  .nav-panel.is-open{max-height:520px;border-top-color:var(--line);}
  .nav-panel__list{padding:8px 0;}
  .nav-panel__list li + li{border-top:1px solid var(--line);}
  .nav-panel__link{
    display:flex;
    align-items:center;
    height:48px;
    font-size:16px;
    color:var(--text-2);
  }
  .nav-panel__link.is-active{color:var(--primary);}
  .nav-panel__cta{width:100%;margin:16px 0 24px;}

  .footer-grid{grid-template-columns:1fr 1fr;gap:32px 24px;}
  .footer-brand{grid-column:1 / -1;}
}

@media (max-width:640px){
  body{font-size:15px;}
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .section--tight{padding:44px 0;}
  .page-hero{padding:40px 0 48px;min-height:260px;}
  .page-hero h1{font-size:26px;}
  .page-hero__lead{font-size:14px;}
  .stat-card{padding:18px 20px;margin-top:22px;}
  .stat-card__num{font-size:20px;}

  .wall-item{padding:20px 12px;gap:14px;}
  .wall-item__num{width:40px;font-size:22px;}
  .wall-item__title{font-size:17px;}
  .checklist{padding:22px 20px;}
  .cta-bar{padding:24px 20px;}
  .cta-bar h2{font-size:20px;}
  .cta-bar__actions{width:100%;}
  .cta-bar__actions .btn{flex:1;}
  .accordion .accordion-title{font-size:16px;padding:18px 50px 18px 18px;}
  .accordion .accordion-content{padding:16px 18px 20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;}
  .toast{width:calc(100% - 32px);text-align:center;}
}

/* roulang page: category2 */
:root{
  --bg-0:#050A12; --bg-1:#0A1420; --bg-2:#101E2E;
  --line:rgba(126,196,214,.16); --line-strong:rgba(47,224,198,.38);
  --primary:#2FE0C6; --primary-deep:#12B7A4;
  --accent:#FF9A4D; --tag:#7E6BFF;
  --text-1:#E7F1F7; --text-2:#9CB0C0; --text-3:#6C8092;
  --glow:0 0 0 1px rgba(47,224,198,.22), 0 14px 40px -14px rgba(47,224,198,.45);
  --shadow:0 24px 60px -34px rgba(0,0,0,.9);
  --r-card:18px; --r-img:14px; --r-sm:12px; --r-pill:999px;
  --ease:200ms ease;
  --s1:4px; --s2:8px; --s3:12px; --s4:16px; --s5:24px; --s6:32px; --s7:48px; --s8:64px; --s9:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg-0);color:var(--text-2);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;line-height:1.85;letter-spacing:0;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:radial-gradient(600px 420px at 50% -140px, rgba(47,224,198,.10), transparent 72%);
}
body::after{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.04;
  background-image:linear-gradient(rgba(126,196,214,.7) 1px,transparent 1px),linear-gradient(90deg,rgba(126,196,214,.7) 1px,transparent 1px);
  background-size:64px 64px;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:var(--text-1);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--primary)}
h1,h2,h3,h4{margin:0;color:var(--text-1);font-weight:700;letter-spacing:0;line-height:1.25;font-style:normal}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1}
.container .row{max-width:none;margin-left:-12px;margin-right:-12px}
.container .row .columns{padding-left:12px;padding-right:12px}
.section{padding:96px 0;position:relative;z-index:1}
.section--tight{padding:72px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.sec-title{font-size:27px;font-weight:600;position:relative;padding-left:16px}
.sec-title::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;border-radius:2px;background:var(--primary);box-shadow:0 0 14px rgba(47,224,198,.7)}
.sec-desc{margin-top:12px;font-size:15px;color:var(--text-2);max-width:680px;line-height:1.8}
.sec-link{font-size:14px;color:var(--primary);border-bottom:1px solid transparent;transition:border-color var(--ease)}
.sec-link:hover{border-bottom-color:var(--primary)}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:80;height:72px;display:flex;align-items:center;transition:background var(--ease),border-color var(--ease),backdrop-filter var(--ease)}
.site-header.is-scrolled{background:rgba(5,10,18,.85);backdrop-filter:blur(16px) saturate(120%);-webkit-backdrop-filter:blur(16px) saturate(120%);border-bottom:1px solid var(--line)}
.header-inner{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px;width:100%}
.nav-left,.nav-right{display:flex;align-items:center;gap:28px}
.nav-left{justify-self:start}
.nav-right{justify-self:end}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--text-2);padding:6px 0;white-space:nowrap}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform var(--ease);border-radius:2px}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--primary)}
.nav-link.is-active::after{transform:scaleX(1)}
.brand{display:inline-flex;align-items:center;gap:10px;justify-self:center}
.brand-mark{width:30px;height:30px;flex:none}
.brand-text{font-size:17px;font-weight:700;color:var(--text-1);letter-spacing:.2px;white-space:nowrap}
.header-cta{display:inline-flex;align-items:center;height:38px;padding:0 18px;border-radius:var(--r-pill);font-size:14px;font-weight:600;color:#04121A;background:linear-gradient(120deg,#2FE0C6,#12B7A4);transition:all var(--ease)}
.header-cta:hover{color:#04121A;transform:translateY(-2px);box-shadow:0 12px 30px -12px rgba(47,224,198,.75)}
.menu-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-sm);background:rgba(16,30,46,.7);position:relative;cursor:pointer}
.menu-toggle span{position:absolute;left:12px;right:12px;height:1.6px;background:var(--text-1);border-radius:2px;transition:all var(--ease)}
.menu-toggle span:nth-child(1){top:15px}
.menu-toggle span:nth-child(2){top:21px}
.menu-toggle span:nth-child(3){top:27px}
.menu-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.menu-toggle.is-open span:nth-child(2){opacity:0}
.menu-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.mobile-bar{display:none}
.mobile-panel{
  display:none;position:fixed;top:64px;left:0;right:0;z-index:79;
  background:rgba(6,12,20,.97);backdrop-filter:blur(18px) saturate(120%);
  border-bottom:1px solid var(--line);padding:8px 16px 20px;
}
.mobile-panel.is-open{display:block}
.mobile-panel a.m-p-link{display:flex;align-items:center;height:48px;font-size:16px;color:var(--text-2);border-bottom:1px solid var(--line)}
.mobile-panel a.m-p-link.is-active{color:var(--primary)}
.mobile-panel .btn{width:100%;justify-content:center;margin-top:16px}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 28px;border-radius:var(--r-pill);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform var(--ease),box-shadow var(--ease),background var(--ease),filter var(--ease);text-align:center}
.btn-primary{background:linear-gradient(120deg,#2FE0C6,#12B7A4);color:#04121A;box-shadow:0 14px 32px -16px rgba(47,224,198,.8)}
.btn-primary:hover{color:#04121A;transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 16px 44px -8px rgba(47,224,198,.55)}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 10px rgba(4,18,26,.45)}
.btn-ghost{background:transparent;border-color:rgba(47,224,198,.5);color:var(--primary)}
.btn-ghost:hover{background:rgba(47,224,198,.08);color:var(--primary);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:14px;border-bottom:1px solid rgba(47,224,198,.28);padding-bottom:2px;transition:all var(--ease)}
.btn-text:hover{border-bottom-color:var(--primary);gap:10px;color:var(--primary)}

/* ============ 徽章 / 标签 ============ */
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:6px;font-size:12px;line-height:1;background:rgba(47,224,198,.12);color:var(--primary);border:1px solid rgba(47,224,198,.22)}
.badge--tag{background:rgba(126,107,255,.14);color:#B0A4FF;border-color:rgba(126,107,255,.28)}
.badge--amber{background:rgba(255,154,77,.12);color:var(--accent);border-color:rgba(255,154,77,.24)}
.tag-pill{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);font-size:12px;color:var(--text-2);border:1px solid var(--line);background:rgba(16,30,46,.6)}
.glass{background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));border:1px solid var(--line);border-radius:var(--r-card);backdrop-filter:blur(16px) saturate(120%);-webkit-backdrop-filter:blur(16px) saturate(120%);box-shadow:inset 0 1px 0 rgba(255,255,255,.06)}
.card{background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease)}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow),var(--glow)}

/* ============ 页头 Hero ============ */
.page-hero{position:relative;overflow:hidden;padding:56px 0 64px;min-height:300px}
.page-hero__bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.34}
.page-hero__mask{position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,10,18,.55) 0%,rgba(5,10,18,.86) 55%,var(--bg-0) 100%)}
.page-hero__inner{position:relative;z-index:2}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3)}
.crumbs a{color:var(--text-3)}
.crumbs a:hover{color:var(--primary)}
.crumbs span.sep{color:rgba(108,128,146,.6)}
.crumbs .cur{color:var(--text-1)}
.page-title{margin-top:20px;font-size:38px;line-height:1.2;font-weight:700}
.page-title .h1-sub{display:block;margin-top:12px;font-size:16px;font-weight:500;color:var(--text-2);line-height:1.7}
.hero-lead{margin-top:16px;font-size:15px;color:var(--text-2);max-width:620px;line-height:1.85}
.stat-card{padding:22px;display:grid;gap:14px}
.stat-row{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding-bottom:12px;border-bottom:1px dashed rgba(126,196,214,.16)}
.stat-row:last-child{border-bottom:none;padding-bottom:0}
.stat-num{font-size:22px;font-weight:700;color:var(--accent);letter-spacing:.4px}
.stat-label{font-size:13px;color:var(--text-3)}

/* ============ 时间轴 ============ */
.timeline{position:relative;max-width:1000px;margin:0 auto;padding:12px 0 0}
.timeline::before{content:"";position:absolute;left:50%;top:0;bottom:40px;width:1px;transform:translateX(-50%);background:linear-gradient(180deg,rgba(47,224,198,0) 0%,rgba(47,224,198,.45) 10%,rgba(47,224,198,.45) 88%,rgba(47,224,198,0) 100%)}
.tl-item{position:relative;width:50%;padding:0 44px 56px 0}
.tl-item:nth-child(even){margin-left:50%;padding:0 0 56px 44px}
.tl-item::after{content:"";position:absolute;right:-7px;top:34px;width:14px;height:14px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px rgba(47,224,198,.14),0 0 18px rgba(47,224,198,.65)}
.tl-item:nth-child(even)::after{right:auto;left:-7px}
.tl-card{background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);padding:22px;transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease)}
.tl-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow),var(--glow)}
.tl-step{display:inline-block;font-size:13px;font-weight:700;color:var(--accent);letter-spacing:1px;margin-bottom:8px}
.tl-title{font-size:19px;font-weight:600;color:var(--text-1)}
.tl-text{margin-top:10px;font-size:14px;line-height:1.8;color:var(--text-2)}
.tl-meta{margin-top:14px;font-size:13px;color:var(--text-3);display:flex;flex-wrap:wrap;gap:12px}

/* ============ 指标玻璃卡 ============ */
.metric-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.metric{padding:26px 22px;text-align:center}
.metric-num{font-size:30px;font-weight:700;color:var(--accent);line-height:1.2}
.metric-num small{font-size:14px;font-weight:500;margin-left:4px;color:var(--accent)}
.metric-label{margin-top:8px;font-size:14px;color:var(--text-1);font-weight:600}
.metric-desc{margin-top:6px;font-size:13px;color:var(--text-3);line-height:1.7}

/* ============ 清单 / 图文 ============ */
.check-list{display:grid;gap:14px}
.check-item{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text-2);line-height:1.75}
.check-item .ck{flex:none;width:22px;height:22px;margin-top:4px;border-radius:6px;background:rgba(47,224,198,.12);border:1px solid rgba(47,224,198,.3);position:relative}
.check-item .ck::after{content:"";position:absolute;left:6px;top:5px;width:8px;height:4px;border-left:2px solid var(--primary);border-bottom:2px solid var(--primary);transform:rotate(-45deg)}
.wide-card{overflow:hidden;padding:0}
.wide-card img{width:100%;height:280px;object-fit:cover;border-radius:0}
.wide-card__body{padding:24px}
.wide-card__body h3{font-size:20px}
.wide-card__body p{margin-top:10px;font-size:14px;line-height:1.8;color:var(--text-2)}

/* ============ FAQ ============ */
.faq{max-width:880px;margin:0 auto}
.faq-item{background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);margin-bottom:14px;overflow:hidden;transition:border-color var(--ease)}
.faq-item.is-open{border-color:var(--line-strong)}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;padding:20px 22px;background:none;border:none;cursor:pointer;text-align:left;font-size:17px;font-weight:600;color:var(--text-1);line-height:1.5}
.faq-q:hover{color:var(--primary)}
.faq-icon{position:relative;flex:none;width:20px;height:20px;transition:transform var(--ease)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--primary);border-radius:2px}
.faq-icon::before{left:0;right:0;top:9px;height:2px}
.faq-icon::after{top:0;bottom:0;left:9px;width:2px;transition:opacity var(--ease)}
.faq-item.is-open .faq-icon{transform:rotate(180deg)}
.faq-item.is-open .faq-icon::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height 200ms ease}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a-inner{padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--text-2)}
.faq-a-inner p+p{margin-top:10px}

/* ============ 相关推荐 ============ */
.rec-list{display:grid;gap:14px}
.rec-card{display:flex;align-items:center;gap:16px;padding:18px 20px;background:var(--bg-1);border:1px solid var(--line);border-left:3px solid var(--primary);border-radius:0 var(--r-sm) var(--r-sm) 0;transition:background var(--ease),transform var(--ease),border-color var(--ease)}
.rec-card:hover{background:var(--bg-2);transform:translateX(4px);border-color:var(--line-strong);border-left-color:var(--primary)}
.rec-main{flex:1;min-width:0}
.rec-title{font-size:16px;font-weight:600;color:var(--text-1);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rec-meta{margin-top:6px;font-size:13px;color:var(--text-3);display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.rec-arrow{flex:none;color:var(--primary);font-size:16px;transition:transform var(--ease)}
.rec-card:hover .rec-arrow{transform:translateX(4px)}

/* ============ CTA 条 ============ */
.cta-bar{padding:28px 30px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.cta-bar h3{font-size:20px}
.cta-bar p{margin-top:8px;font-size:14px;color:var(--text-2)}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{position:relative;z-index:1;margin-top:24px;padding:64px 0 32px;background:var(--bg-0)}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(47,224,198,.5),transparent)}
.footer-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:32px}
.footer-brand{grid-column:span 5}
.footer-brand .brand{justify-self:start}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.8;color:var(--text-2);max-width:340px}
.footer-tags{margin-top:16px;display:flex;flex-wrap:wrap;gap:8px}
.footer-col{grid-column:span 2}
.footer-col:nth-child(3){grid-column:span 2}
.footer-col:nth-child(4){grid-column:span 3}
.footer-col h4{font-size:15px;color:var(--text-1);margin-bottom:16px;font-weight:600}
.footer-col ul{display:grid;gap:10px}
.footer-col li a{font-size:14px;color:var(--text-2);display:inline-block;transition:color var(--ease),transform var(--ease)}
.footer-col li a:hover{color:var(--primary);transform:translateX(-2px)}
.footer-info p{font-size:14px;color:var(--text-2);line-height:1.9}
.footer-info a{color:var(--primary)}
.footer-bottom{margin-top:44px;padding-top:20px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--text-3)}

/* ============ Toast ============ */
.toast{position:fixed;left:50%;bottom:36px;transform:translate(-50%,20px);z-index:120;padding:12px 22px;border-radius:var(--r-pill);font-size:14px;color:var(--text-1);background:rgba(10,20,32,.92);border:1px solid var(--line-strong);backdrop-filter:blur(14px);box-shadow:var(--shadow);opacity:0;pointer-events:none;transition:opacity var(--ease),transform var(--ease)}
.toast.is-show{opacity:1;transform:translate(-50%,0)}

/* ============ 响应式 ============ */
@media screen and (max-width:1024px){
  .nav-left,.nav-right{display:none}
  .site-header{height:64px}
  .header-inner{display:flex;justify-content:space-between;align-items:center}
  .menu-toggle{display:block}
  .mobile-bar{display:flex;align-items:center}
  .brand-text{font-size:15px}
  .header-cta{height:36px;padding:0 14px;font-size:13px}
  .section{padding:72px 0}
  .section--tight{padding:56px 0}
  .page-title{font-size:32px}
  .metric-grid{grid-template-columns:1fr 1fr;gap:16px}
  .footer-brand{grid-column:span 12}
  .footer-col,.footer-col:nth-child(3),.footer-col:nth-child(4){grid-column:span 6}
}
@media screen and (max-width:640px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .section--tight{padding:48px 0}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px}
  .sec-title{font-size:22px}
  .page-title{font-size:26px}
  .page-title .h1-sub{font-size:14px}
  .btn{height:46px;padding:0 22px;font-size:14px}
  .timeline::before{left:18px;transform:none}
  .tl-item,.tl-item:nth-child(even){width:100%;margin-left:0;padding:0 0 40px 46px}
  .tl-item::after,.tl-item:nth-child(even)::after{left:12px;right:auto;top:30px}
  .metric-grid{grid-template-columns:1fr}
  .wide-card img{height:200px}
  .cta-bar{padding:22px;flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
  .footer-col,.footer-col:nth-child(3),.footer-col:nth-child(4){grid-column:span 6}
  .footer-bottom{flex-direction:column;gap:8px}
  .rec-card{padding:16px}
  .rec-title{white-space:normal}
}
@media screen and (max-width:400px){
  .footer-col,.footer-col:nth-child(3),.footer-col:nth-child(4){grid-column:span 12}
}