/* roulang page: index */
:root{
  --ink-950:#04070F;--ink-900:#070C17;--ink-800:#0C1424;--ink-700:#131C30;
  --line-1:rgba(255,255,255,.08);--line-2:rgba(31,224,181,.32);
  --brand:#1FE0B5;--brand-deep:#0FA98A;--brand-soft:rgba(31,224,181,.12);
  --accent:#FF9A3C;
  --text-1:#EFF5FF;--text-2:#C3D0E2;--text-3:#8695AC;
  --glass:rgba(255,255,255,.045);--stroke:rgba(255,255,255,.10);
  --r-card:18px;--r-lg:20px;--r-btn:12px;--r-pill:999px;--r-badge:8px;
  --shadow-card:0 10px 30px -18px rgba(0,0,0,.9);
  --shadow-hover:0 18px 44px -20px rgba(0,0,0,.95);
  --shadow-glow:0 0 0 1px rgba(31,224,181,.55),0 10px 30px -10px rgba(31,224,181,.55);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;font-family:var(--font);font-size:16.5px;line-height:1.85;
  color:var(--text-2);background:var(--ink-950);
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 78%);
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .18s var(--ease);}
a:hover{color:var(--brand-deep);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--text-1);font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:15px;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1220px;margin:0 auto;padding:0 32px;position:relative;z-index:1;}
.section{padding:96px 0;position:relative;z-index:1;}
.section--alt{background:var(--ink-800);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.section-title{font-size:clamp(23px,2.4vw,32px);line-height:1.25;font-weight:700;}
.section-sub{font-size:17px;line-height:1.75;color:var(--text-3);margin-top:12px;max-width:640px;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;transition:all .18s var(--ease);min-height:44px;
  text-align:center;line-height:1.4;
}
.btn-primary{background:var(--brand);color:#04120E;box-shadow:var(--shadow-glow);}
.btn-primary:hover{background:#2ff0c4;color:#04120E;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(31,224,181,.5);}
.btn-ghost{background:transparent;color:var(--text-1);border-color:var(--stroke);}
.btn-ghost:hover{border-color:var(--line-2);color:var(--brand);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:15px;font-weight:600;text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;}
.btn-text:hover{color:var(--brand-deep);}
.btn-sm{padding:9px 16px;font-size:14px;min-height:38px;}

/* 徽章 */
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;
  border-radius:var(--r-badge);background:var(--brand-soft);color:var(--brand);
  font-size:13px;font-weight:600;white-space:nowrap;
}
.meta-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13px;color:var(--text-3);}
.meta-row .dot{color:var(--text-3);}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(7,12,23,.78);
  -webkit-backdrop-filter:blur(16px) saturate(130%);
  backdrop-filter:blur(16px) saturate(130%);
  border-bottom:1px solid var(--line-1);
}
.nav-wrap{display:flex;align-items:center;gap:22px;height:76px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:28px;height:28px;border-radius:8px;background:var(--brand);
  display:flex;align-items:center;justify-content:center;
  color:#04120E;font-weight:700;font-size:16px;line-height:1;
  box-shadow:0 6px 18px -8px rgba(31,224,181,.8);
}
.brand-text{font-size:18px;letter-spacing:-.01em;color:var(--text-1);font-weight:400;white-space:nowrap;}
.brand-text b{font-weight:700;color:var(--brand);}
.brand-text em{font-style:normal;font-weight:600;color:var(--text-1);}
.search-form{position:relative;flex:1 1 auto;max-width:560px;}
.search-form .fa-magnifying-glass{
  position:absolute;left:18px;top:50%;transform:translateY(-50%);
  font-size:14px;color:var(--text-3);pointer-events:none;
}
.search-input{
  width:100%;height:46px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.04);border:1px solid var(--line-1);
  color:var(--text-1);padding:0 100px 0 44px;font-size:14px;transition:all .18s var(--ease);
}
.search-input::placeholder{color:var(--text-3);}
.search-input:focus{outline:none;border-color:var(--line-2);box-shadow:0 0 0 2px rgba(31,224,181,.22);}
.search-submit{
  position:absolute;right:5px;top:5px;height:36px;padding:0 16px;border:0;
  border-radius:var(--r-pill);background:var(--brand);color:#04120E;
  font-size:13px;font-weight:700;transition:background .18s var(--ease);
}
.search-submit:hover{background:#2ff0c4;}
.nav-links{display:flex;align-items:center;gap:22px;flex-shrink:0;}
.nav-links a{
  position:relative;font-size:14px;color:var(--text-2);padding:6px 0;transition:color .18s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--brand);
  transition:width .18s var(--ease);
}
.nav-links a:hover{color:var(--text-1);}
.nav-links a:hover::after,.nav-links a.active::after{width:100%;}
.nav-links a.active{color:var(--text-1);}
.nav-cta{flex-shrink:0;}
.mobile-tools{display:none;align-items:center;gap:8px;margin-left:auto;}
.icon-btn{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line-1);border-radius:var(--r-btn);
  color:var(--text-1);font-size:16px;transition:all .18s var(--ease);
}
.icon-btn:hover{border-color:var(--line-2);color:var(--brand);}
.mobile-search{display:none;padding:0 0 14px;}
.mobile-search.open{display:block;}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(4,7,15,.72);z-index:95;
  opacity:0;visibility:hidden;transition:opacity .2s var(--ease),visibility .2s;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;width:320px;max-width:86vw;height:100%;z-index:96;
  background:var(--ink-900);border-left:1px solid var(--line-1);
  transform:translateX(100%);transition:transform .24s var(--ease);
  padding:22px;overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-title{font-size:13px;color:var(--text-3);margin:24px 0 10px;letter-spacing:.04em;}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 14px;border-radius:var(--r-btn);
  color:var(--text-2);font-size:15px;border:1px solid transparent;
}
.drawer-link:hover{background:var(--glass);color:var(--text-1);border-color:var(--line-1);}
.drawer-close{
  width:44px;height:44px;border-radius:var(--r-btn);border:1px solid var(--line-1);
  background:transparent;color:var(--text-1);font-size:18px;
}

/* Hero */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line-1);}
.hero-grid{
  display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center;
  min-height:640px;padding:72px 0 0;
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;
  border-radius:var(--r-pill);background:var(--brand-soft);color:var(--brand);
  font-size:13px;font-weight:600;margin-bottom:22px;
}
.hero h1{
  font-size:clamp(30px,4.2vw,50px);line-height:1.15;font-weight:700;letter-spacing:-.02em;
  color:var(--text-1);
}
.hero h1 span{color:var(--brand);}
.hero-lead{font-size:17px;line-height:1.8;color:var(--text-3);margin-top:20px;max-width:560px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:32px;}
.hero-metrics{display:flex;gap:36px;margin-top:38px;flex-wrap:wrap;}
.hero-metric strong{
  display:block;font-size:20px;font-weight:700;color:var(--brand);
  font-variant-numeric:tabular-nums;line-height:1.4;
}
.hero-metric span{font-size:13px;color:var(--text-3);}
.hero-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--stroke);box-shadow:var(--shadow-card);
  aspect-ratio:16/12;background:var(--ink-700);
}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(7,12,23,.20) 0%,rgba(7,12,23,.85) 100%);
}
.hero-media-tag{
  position:absolute;left:20px;bottom:20px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;
  border-radius:var(--r-pill);background:rgba(4,7,15,.7);
  border:1px solid var(--stroke);color:var(--text-1);font-size:13px;
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.quick-bar{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line-1);margin-top:72px;
}
.quick-item{
  padding:20px 24px;border-right:1px solid var(--line-1);
  display:flex;align-items:center;gap:12px;font-size:14px;color:var(--text-2);
}
.quick-item:last-child{border-right:0;}
.quick-item i{color:var(--brand);font-size:15px;}

/* Bento */
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:24px;}
.bento-card{
  background:var(--glass);border:1px solid var(--stroke);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--shadow-card);position:relative;overflow:hidden;
  -webkit-backdrop-filter:blur(18px) saturate(130%);backdrop-filter:blur(18px) saturate(130%);
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
  display:flex;flex-direction:column;gap:12px;
}
.bento-card:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:var(--shadow-hover);}
.bento-card h3{font-size:17px;font-weight:600;line-height:1.5;}
.bento-card p{font-size:15px;line-height:1.8;color:var(--text-2);}
.bento-card .bento-icon{
  width:40px;height:40px;border-radius:10px;background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:17px;
}
.bento-lg{grid-column:span 4;grid-row:span 2;padding:0;justify-content:flex-end;}
.bento-lg .bento-media{position:relative;overflow:hidden;border-radius:var(--r-card) var(--r-card) 0 0;}
.bento-lg .bento-media img{width:100%;height:230px;object-fit:cover;transition:transform .3s var(--ease);}
.bento-lg:hover .bento-media img{transform:scale(1.03);}
.bento-lg .bento-body{padding:0 28px 28px;display:flex;flex-direction:column;gap:12px;}
.bento-sm{grid-column:span 2;}
.bento-md{grid-column:span 3;}
.bento-wide{grid-column:span 6;flex-direction:row;align-items:center;justify-content:space-between;gap:24px;}

/* 数据带 */
.stats-band{border-top:1px solid var(--line-1);border-bottom:1px solid var(--line-1);}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;}
.stat{padding:38px 24px;border-right:1px solid var(--line-1);}
.stat:last-child{border-right:0;}
.stat strong{
  display:block;font-size:clamp(32px,4vw,48px);font-weight:700;line-height:1.1;
  color:var(--brand);font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.stat span{display:block;margin-top:10px;font-size:14px;color:var(--text-3);}

/* 场景 */
.scene-grid{display:grid;grid-template-columns:8fr 4fr;gap:24px;}
.scene-main{
  position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--stroke);
  background:var(--glass);box-shadow:var(--shadow-card);transition:all .18s var(--ease);
  min-height:400px;display:flex;flex-direction:column;justify-content:flex-end;
}
.scene-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.scene-main::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,12,23,.15) 30%,rgba(7,12,23,.92) 100%);
}
.scene-main-body{position:relative;z-index:2;padding:32px;}
.scene-main-body h3{font-size:22px;margin:14px 0 10px;}
.scene-main-body p{font-size:15px;color:var(--text-2);max-width:480px;}
.scene-side{display:grid;gap:24px;}
.scene-card{
  border-radius:var(--r-card);overflow:hidden;border:1px solid var(--stroke);
  background:var(--glass);box-shadow:var(--shadow-card);transition:all .18s var(--ease);
  display:flex;flex-direction:column;
}
.scene-card img{width:100%;height:150px;object-fit:cover;}
.scene-card .scene-body{padding:18px 20px 22px;}
.scene-card h3{font-size:16px;font-weight:600;margin-top:10px;line-height:1.5;}
.scene-main:hover,.scene-card:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:var(--shadow-hover);}

/* 方案 */
.plan-grid{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start;}
.plan-sticky{position:sticky;top:100px;}
.plan-sticky p{font-size:15.5px;line-height:1.85;color:var(--text-3);margin:18px 0 26px;}
.plan-list{border-top:1px solid var(--line-1);}
.plan-item{
  display:flex;align-items:center;gap:22px;padding:24px 18px;
  border-bottom:1px solid var(--line-1);transition:background .18s var(--ease);
  border-radius:10px;
}
.plan-item:hover{background:var(--glass);}
.plan-num{
  font-size:15px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;
  min-width:34px;letter-spacing:.04em;
}
.plan-body{flex:1;min-width:0;}
.plan-body h3{font-size:17px;font-weight:600;margin-bottom:6px;}
.plan-body p{font-size:14.5px;color:var(--text-3);line-height:1.75;}
.plan-item i{color:var(--text-3);font-size:14px;transition:all .18s var(--ease);}
.plan-item:hover i{color:var(--brand);transform:translateX(4px);}

/* 最新信息 */
.news-head-link{font-size:15px;font-weight:600;}
.cms-grid{display:grid;grid-template-columns:6fr 6fr;gap:32px;}
.cms-lead{
  display:flex;flex-direction:column;overflow:hidden;border-radius:var(--r-card);
  border:1px solid var(--stroke);background:var(--glass);box-shadow:var(--shadow-card);
  transition:all .18s var(--ease);
  -webkit-backdrop-filter:blur(18px) saturate(130%);backdrop-filter:blur(18px) saturate(130%);
}
.cms-lead:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:var(--shadow-hover);}
.cms-lead-media{display:block;overflow:hidden;}
.cms-lead-media img{width:100%;height:250px;object-fit:cover;transition:transform .3s var(--ease);}
.cms-lead:hover .cms-lead-media img{transform:scale(1.03);}
.cms-lead-body{padding:24px 28px 28px;display:flex;flex-direction:column;gap:12px;}
.cms-lead-body h3{font-size:20px;line-height:1.5;}
.cms-lead-body h3 a{color:var(--text-1);}
.cms-lead-body h3 a:hover{color:var(--brand);}
.cms-lead-body p{font-size:15px;line-height:1.8;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.cms-list{display:flex;flex-direction:column;gap:16px;}
.cms-item{
  display:block;padding:20px 24px;border-radius:var(--r-card);
  border:1px solid var(--stroke);background:var(--glass);
  transition:all .18s var(--ease);
}
.cms-item:hover{border-color:var(--line-2);background:rgba(255,255,255,.07);transform:translateY(-2px);}
.cms-item h3{font-size:17px;font-weight:600;color:var(--text-1);line-height:1.55;margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.cms-item:hover h3{color:var(--brand);}
.cms-item p{font-size:14.5px;color:var(--text-3);line-height:1.7;margin-bottom:12px;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;}
.cms-empty{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  min-height:220px;border-radius:var(--r-card);border:1px dashed var(--line-1);
  background:var(--glass);text-align:center;padding:32px;
}
.cms-empty i{font-size:26px;color:var(--text-3);}
.cms-empty p{font-size:15px;color:var(--text-3);}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start;}
.faq-list{border-top:1px solid var(--line-1);}
.faq-item{border-bottom:1px solid var(--line-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:64px;padding:14px 4px;background:transparent;border:0;
  color:var(--text-1);font-size:16px;font-weight:600;text-align:left;line-height:1.6;
  transition:color .18s var(--ease);
}
.faq-q:hover{color:var(--brand);}
.faq-q .faq-sign{
  flex-shrink:0;width:26px;height:26px;border-radius:8px;border:1px solid var(--line-1);
  display:flex;align-items:center;justify-content:center;font-size:13px;color:var(--brand);
  transition:transform .2s var(--ease),border-color .18s var(--ease);
}
.faq-item.open .faq-sign{transform:rotate(45deg);border-color:var(--line-2);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease);}
.faq-a p{font-size:15.5px;line-height:1.85;color:var(--text-2);padding:0 4px 22px;}

/* CTA 表单 */
.cta-card{
  border-radius:var(--r-card);border:1px solid var(--stroke);background:var(--glass);
  box-shadow:var(--shadow-card);padding:48px;
  -webkit-backdrop-filter:blur(18px) saturate(130%);backdrop-filter:blur(18px) saturate(130%);
  display:grid;grid-template-columns:5fr 7fr;gap:56px;
}
.cta-info h2{font-size:clamp(23px,2.4vw,32px);line-height:1.25;}
.cta-info > p{margin-top:16px;font-size:15.5px;line-height:1.85;color:var(--text-3);}
.contact-list{margin-top:28px;display:flex;flex-direction:column;gap:16px;}
.contact-list li{display:flex;align-items:flex-start;gap:12px;font-size:15px;color:var(--text-2);}
.contact-list i{color:var(--brand);font-size:15px;margin-top:4px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:13px;color:var(--text-3);}
.field input,.field select,.field textarea{
  width:100%;height:46px;border-radius:var(--r-btn);
  background:rgba(255,255,255,.03);border:1px solid var(--line-1);
  color:var(--text-1);padding:0 14px;transition:all .18s var(--ease);
  appearance:none;-webkit-appearance:none;
}
.field textarea{height:auto;min-height:120px;padding:12px 14px;line-height:1.75;resize:vertical;}
.field select{background-image:none;}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--line-2);box-shadow:inset 0 0 0 1px rgba(31,224,181,.25);
}
.form-note{grid-column:1 / -1;font-size:13px;color:var(--text-3);line-height:1.7;}
.form-submit{grid-column:1 / -1;justify-self:start;}

/* 页脚 */
.site-footer{background:var(--ink-900);border-top:1px solid var(--line-1);padding:64px 0 0;position:relative;z-index:1;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}
.footer-brand p{font-size:14.5px;color:var(--text-3);line-height:1.8;margin-top:16px;max-width:280px;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.footer-tags span{
  font-size:12.5px;color:var(--brand);background:var(--brand-soft);
  border-radius:var(--r-badge);padding:4px 10px;
}
.footer-col h4{font-size:14px;color:var(--text-1);font-weight:600;margin-bottom:18px;}
.footer-col li{margin-bottom:12px;}
.footer-col a,.footer-col span{font-size:14px;color:var(--text-3);}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:48px;border-top:1px solid var(--line-1);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}

@media (max-width:1199px){
  .nav-links{gap:16px;}
  .hero-grid{grid-template-columns:1fr 1fr;gap:40px;}
  .plan-grid,.faq-grid{gap:36px;}
  .cta-card{grid-template-columns:1fr;gap:36px;padding:36px;}
}
@media (max-width:991px){
  .container{padding:0 24px;}
  .section{padding:72px 0;}
  .search-form{max-width:320px;}
  .nav-links{display:none;}
  .nav-cta{display:none;}
  .mobile-tools{display:flex;}
  .hero-grid{grid-template-columns:1fr;min-height:0;padding-top:56px;gap:40px;}
  .hero-media{aspect-ratio:16/10;}
  .quick-bar{grid-template-columns:repeat(2,1fr);margin-top:48px;}
  .quick-item:nth-child(2){border-right:0;}
  .quick-item:nth-child(1),.quick-item:nth-child(2){border-bottom:1px solid var(--line-1);}
  .bento{grid-template-columns:repeat(2,1fr);}
  .bento-lg{grid-column:span 2;grid-row:auto;}
  .bento-sm,.bento-md{grid-column:span 1;}
  .bento-wide{grid-column:span 2;flex-direction:column;align-items:flex-start;}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .stat:nth-child(2){border-right:0;}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line-1);}
  .scene-grid{grid-template-columns:1fr;}
  .plan-grid{grid-template-columns:1fr;}
  .plan-sticky{position:static;}
  .faq-grid{grid-template-columns:1fr;}
  .cms-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .brand-text{font-size:16px;}
  .search-form{display:none;}
  .hero h1{font-size:30px;}
  .hero-actions .btn{width:100%;}
  .hero-metrics{gap:24px;}
  .cta-card{padding:26px;}
  .form-grid{grid-template-columns:1fr;}
  .form-submit{justify-self:stretch;}
  .form-submit .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .scene-main-body{padding:22px;}
  .bento{padding:0;}
}
@media (max-width:520px){
  .quick-bar{grid-template-columns:1fr 1fr;}
  .quick-item{padding:16px;font-size:13px;}
  .stats-grid{grid-template-columns:1fr;}
  .stat{border-right:0;border-bottom:1px solid var(--line-1);padding:26px 18px;}
  .stat:last-child{border-bottom:0;}
  .bento{grid-template-columns:1fr;}
  .bento-lg,.bento-sm,.bento-md,.bento-wide{grid-column:span 1;}
  .hero-media-tag{left:14px;bottom:14px;font-size:12px;}
  .cms-lead-body{padding:20px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  .bento-card:hover,.scene-main:hover,.scene-card:hover,.cms-lead:hover,.cms-item:hover{transform:none;}
  .cms-lead:hover .cms-lead-media img,.bento-lg:hover .bento-media img{transform:none;}
}

/* roulang page: article */
:root{
  --ink-950:#04070F;
  --ink-900:#070C17;
  --ink-800:#0C1424;
  --ink-700:#131C30;
  --line-1:rgba(255,255,255,.08);
  --line-2:rgba(31,224,181,.32);
  --brand:#1FE0B5;
  --brand-deep:#0FA98A;
  --brand-soft:rgba(31,224,181,.12);
  --accent:#FF9A3C;
  --text-1:#EFF5FF;
  --text-2:#C3D0E2;
  --text-3:#8695AC;
  --glass:rgba(255,255,255,.045);
  --glass-line:rgba(255,255,255,.10);
  --radius-card:18px;
  --radius-btn:12px;
  --radius-pill:999px;
  --shadow-card:0 10px 30px -18px rgba(0,0,0,.9);
  --shadow-card-hover:0 18px 44px -20px rgba(0,0,0,.95);
  --glow:0 0 0 1px rgba(31,224,181,.55), 0 10px 30px -10px rgba(31,224,181,.55);
  --ease:180ms cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--ink-950);
  color:var(--text-2);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  font-weight:400;
  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:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(ellipse at 50% 0%,#000 0%,rgba(0,0,0,0) 72%);
  mask-image:radial-gradient(ellipse at 50% 0%,#000 0%,rgba(0,0,0,0) 72%);
}
body::after{
  content:"";
  position:fixed;
  inset:-20% 0 auto 0;
  height:620px;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(600px 320px at 18% 8%,rgba(31,224,181,.10),transparent 70%),
    radial-gradient(520px 280px at 82% 0%,rgba(255,154,60,.07),transparent 72%);
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--brand-deep)}
h1,h2,h3,h4{margin:0;color:var(--text-1);font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
input,select,textarea{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.row{margin-left:-12px;margin-right:-12px}
.container{width:100%;max-width:1220px;margin:0 auto;padding:0 32px;position:relative;z-index:1}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  cursor:pointer;
  text-align:center;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,#25EDBF 0%,#14C79C 100%);
  color:#04120F;
  box-shadow:var(--glow);
}
.btn-primary:hover{transform:translateY(-1px);color:#04120F;filter:brightness(1.06)}
.btn-primary:active{transform:translateY(0);filter:brightness(.98)}
.btn-ghost{
  background:transparent;
  border-color:var(--line-1);
  color:var(--text-1);
}
.btn-ghost:hover{border-color:var(--line-2);color:var(--text-1);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--brand);
  font-size:14.5px;
  font-weight:600;
  padding:4px 0;
  text-decoration:underline;
  text-decoration-thickness:1px;
  text-underline-offset:4px;
}
.btn-link:hover{color:#5BF0CE}
.btn-link .arrow{transition:transform var(--ease)}
.btn-link:hover .arrow{transform:translateX(4px)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(7,12,23,.72);
  -webkit-backdrop-filter:blur(16px) saturate(130%);
  backdrop-filter:blur(16px) saturate(130%);
  border-bottom:1px solid var(--line-1);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:22px;
  height:76px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:28px;height:28px;border-radius:8px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,#1FE0B5,#0FA98A);
  color:#04120F;
  font-size:15px;
  font-weight:700;
  box-shadow:0 8px 18px -10px rgba(31,224,181,.9);
}
.brand-text{display:flex;align-items:baseline;gap:2px;font-size:17px;color:var(--text-1);letter-spacing:-.01em;white-space:nowrap}
.brand-text b{font-weight:700}
.brand-text em{font-style:normal;font-weight:600;color:var(--brand)}
.nav-search{
  flex:1 1 auto;
  max-width:560px;
  display:flex;
  align-items:center;
  gap:8px;
  height:46px;
  padding:0 6px 0 16px;
  border:1px solid var(--line-1);
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.03);
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.nav-search:focus-within{
  border-color:var(--line-2);
  box-shadow:0 0 0 2px rgba(31,224,181,.18);
  background:rgba(255,255,255,.05);
}
.nav-search svg{flex:0 0 auto;color:var(--text-3)}
.nav-search input[type="search"]{
  flex:1 1 auto;
  min-width:0;
  height:100%;
  margin:0;
  padding:0;
  border:0;
  background:transparent;
  color:var(--text-1);
  font-size:14px;
  box-shadow:none;
  outline:none;
}
.nav-search input[type="search"]::placeholder{color:var(--text-3);font-size:13.5px}
.nav-search button{
  flex:0 0 auto;
  height:34px;
  padding:0 16px;
  border:0;
  border-radius:var(--radius-pill);
  background:var(--brand-soft);
  color:var(--brand);
  font-size:13.5px;
  font-weight:600;
  cursor:pointer;
  transition:background var(--ease),color var(--ease);
}
.nav-search button:hover{background:rgba(31,224,181,.2);color:#5BF0CE}
.nav-links{display:flex;align-items:center;gap:20px;margin-left:auto;flex:0 0 auto}
.nav-links a{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:44px;
  font-size:14px;
  color:var(--text-2);
  white-space:nowrap;
  transition:color var(--ease);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:6px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--ease);
}
.nav-links a:hover{color:var(--text-1)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--text-1)}
.nav-links a.active::after{transform:scaleX(1)}
.header-cta{flex:0 0 auto;padding:10px 18px;font-size:14px;border-radius:var(--radius-pill)}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  border:1px solid var(--line-1);
  border-radius:var(--radius-btn);
  background:rgba(255,255,255,.03);
  color:var(--text-1);
  cursor:pointer;
}
.nav-toggle:hover{border-color:var(--line-2)}

/* ---------- 移动抽屉 ---------- */
.mobile-panel{
  position:fixed;
  inset:0;
  z-index:90;
  display:none;
}
.mobile-panel.open{display:block}
.mobile-panel::before{
  content:"";
  position:absolute;
  inset:0;
  background:rgba(4,7,15,.72);
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
}
.mobile-panel-inner{
  position:absolute;
  top:0;right:0;
  width:min(340px,88vw);
  height:100%;
  padding:22px 22px 32px;
  background:var(--ink-900);
  border-left:1px solid var(--line-1);
  overflow-y:auto;
}
.mobile-panel-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.panel-title{font-size:15px;font-weight:600;color:var(--text-1)}
.panel-close{
  width:40px;height:40px;
  border:1px solid var(--line-1);
  border-radius:10px;
  background:transparent;
  color:var(--text-2);
  font-size:20px;
  line-height:1;
  cursor:pointer;
}
.panel-close:hover{border-color:var(--line-2);color:var(--text-1)}
.mobile-search{max-width:none;margin-bottom:20px}
.mobile-links{display:flex;flex-direction:column;gap:2px}
.mobile-links a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:48px;
  padding:0 4px;
  font-size:15px;
  color:var(--text-2);
  border-bottom:1px solid var(--line-1);
}
.mobile-links a:hover{color:var(--brand)}
.mobile-links a.active{color:var(--brand)}

/* ---------- 文章区 ---------- */
main{position:relative;z-index:1}
.article-hero{
  padding:44px 0 8px;
  border-bottom:1px solid var(--line-1);
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:22px;
}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:rgba(255,255,255,.2)}
.breadcrumb .current{color:var(--text-2);max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.meta-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:18px;
}
.badge{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 10px;
  border-radius:8px;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.01em;
}
.meta-row .dot{color:rgba(255,255,255,.22)}
.article-title{
  font-size:clamp(28px,3.6vw,44px);
  line-height:1.22;
  letter-spacing:-.02em;
  font-weight:700;
  color:var(--text-1);
  max-width:960px;
}
.article-sub{
  margin-top:16px;
  max-width:760px;
  font-size:15.5px;
  color:var(--text-3);
  line-height:1.8;
}
.article-hero-foot{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px;
  margin:26px 0 22px;
}
.article-hero-foot .divider{flex:1 1 200px;height:1px;background:var(--line-1)}

.article-section{padding:48px 0 72px}
.article-wrap{
  display:grid;
  grid-template-columns:minmax(0,780px) 220px;
  grid-template-areas:"body toc";
  gap:56px;
  justify-content:center;
  align-items:start;
}
.article-main{grid-area:body;min-width:0}
.article-aside{grid-area:toc;min-width:0}
.article-body{
  font-size:16.5px;
  line-height:1.9;
  color:var(--text-2);
  word-break:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 22px}
.article-body h2{
  position:relative;
  font-size:clamp(21px,2vw,26px);
  line-height:1.36;
  margin:48px 0 18px;
  padding-left:15px;
  color:var(--text-1);
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:.3em;
  width:3px;height:20px;
  border-radius:2px;
  background:var(--brand);
}
.article-body h3{
  font-size:19px;
  line-height:1.5;
  margin:32px 0 12px;
  color:var(--text-1);
}
.article-body h4{font-size:17px;margin:26px 0 10px;color:var(--text-1)}
.article-body ul{margin:0 0 22px}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:10px}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:0;top:.72em;
  width:7px;height:7px;
  border-radius:2px;
  background:var(--brand);
}
.article-body ol{list-style:decimal;padding-left:22px;margin:0 0 22px}
.article-body ol li{margin-bottom:10px;padding-left:4px}
.article-body ol li::marker{color:var(--brand);font-weight:600}
.article-body blockquote{
  margin:0 0 24px;
  padding:20px 22px;
  border-left:3px solid var(--brand);
  border-radius:0 14px 14px 0;
  background:var(--glass);
  color:var(--text-1);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:14px;margin:10px 0 10px}
.article-body figure{margin:26px 0}
.article-body figcaption{font-size:13px;color:var(--text-3);margin-top:10px}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:4px}
.article-body a:hover{color:#5BF0CE}
.article-body strong{color:var(--text-1);font-weight:600}
.article-body hr{border:0;height:1px;background:var(--line-1);margin:40px 0}
.article-body table{
  width:100%;
  margin:0 0 26px;
  border:1px solid var(--line-1);
  border-radius:14px;
  border-collapse:separate;
  border-spacing:0;
  overflow:hidden;
  font-size:15px;
}
.article-body thead th{
  background:rgba(255,255,255,.05);
  color:var(--text-1);
  font-weight:600;
  text-align:left;
  padding:12px 16px;
}
.article-body tbody td,
.article-body tbody th{
  padding:12px 16px;
  border-top:1px solid var(--line-1);
  text-align:left;
  color:var(--text-2);
}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.025)}
.article-body pre{
  margin:0 0 26px;
  padding:18px 20px;
  border:1px solid var(--line-1);
  border-radius:14px;
  background:#03060D;
  color:#C9E6DE;
  font-size:14px;
  line-height:1.7;
  overflow-x:auto;
}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.article-body :not(pre) > code{
  padding:2px 7px;
  border-radius:6px;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:14px;
}

/* ---------- 目录 ---------- */
.toc{
  position:sticky;
  top:100px;
  padding:20px 18px;
  border:1px solid var(--line-1);
  border-radius:var(--radius-card);
  background:var(--glass);
  -webkit-backdrop-filter:blur(18px) saturate(130%);
  backdrop-filter:blur(18px) saturate(130%);
  box-shadow:var(--shadow-card);
}
.toc-title{
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--text-3);
  margin-bottom:14px;
}
.toc-list{display:flex;flex-direction:column;gap:2px;counter-reset:toc}
.toc-list a{
  display:block;
  padding:7px 10px;
  border-left:2px solid transparent;
  border-radius:0 8px 8px 0;
  font-size:13.5px;
  line-height:1.5;
  color:var(--text-3);
  transition:color var(--ease),background var(--ease),border-color var(--ease);
}
.toc-list a:hover{color:var(--text-1);background:rgba(255,255,255,.04)}
.toc-list a.current{color:var(--brand);border-left-color:var(--brand);background:rgba(31,224,181,.08)}
.toc-empty{font-size:13px;color:var(--text-3);line-height:1.7}

/* ---------- 空态 ---------- */
.article-empty{
  padding:56px 32px;
  text-align:center;
  border:1px solid var(--line-1);
  border-radius:var(--radius-card);
  background:var(--glass);
  box-shadow:var(--shadow-card);
}
.article-empty .empty-icon{
  width:56px;height:56px;
  margin:0 auto 20px;
  display:grid;place-items:center;
  border-radius:16px;
  background:var(--brand-soft);
  color:var(--brand);
}
.article-empty h2{font-size:22px;margin-bottom:12px}
.article-empty p{color:var(--text-3);font-size:15px;max-width:440px;margin:0 auto 24px}

/* ---------- 文末相关 ---------- */
.article-foot{
  margin-top:56px;
  padding-top:40px;
  border-top:1px solid var(--line-1);
}
.foot-head{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:24px}
.foot-head h2{font-size:20px}
.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.rec-card{
  display:flex;
  flex-direction:column;
  padding:16px;
  border:1px solid var(--line-1);
  border-radius:var(--radius-card);
  background:var(--glass);
  box-shadow:var(--shadow-card);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.rec-card:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:var(--shadow-card-hover)}
.rec-thumb{
  aspect-ratio:3/2;
  border-radius:12px;
  overflow:hidden;
  margin-bottom:14px;
  background:var(--ink-700);
}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease)}
.rec-card:hover .rec-thumb img{transform:scale(1.03)}
.rec-card h3{font-size:16.5px;line-height:1.5;margin:10px 0 8px;font-weight:600}
.rec-card h3 a{color:var(--text-1)}
.rec-card h3 a:hover{color:var(--brand)}
.rec-card p{font-size:14px;line-height:1.75;color:var(--text-3);margin-bottom:14px}
.rec-foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  font-size:13px;
  color:var(--text-3);
}
.rec-foot .go{color:var(--brand);font-weight:600;display:inline-flex;align-items:center;gap:4px}
.rec-foot .go .arrow{transition:transform var(--ease)}
.rec-card:hover .rec-foot .go .arrow{transform:translateX(4px)}
.article-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}

/* ---------- 底部 CTA ---------- */
.cta-band{padding:0 0 96px}
.cta-card{
  display:grid;
  grid-template-columns:1.35fr .65fr;
  gap:32px;
  align-items:center;
  padding:40px;
  border:1px solid var(--glass-line);
  border-radius:20px;
  background:
    radial-gradient(520px 240px at 12% 0%,rgba(31,224,181,.14),transparent 70%),
    radial-gradient(420px 220px at 92% 100%,rgba(255,154,60,.10),transparent 72%),
    var(--ink-800);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07),var(--shadow-card);
}
.cta-card h2{font-size:clamp(22px,2.4vw,30px);line-height:1.35;margin-bottom:12px}
.cta-card p{font-size:15.5px;color:var(--text-3);line-height:1.8;max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  z-index:1;
  border-top:1px solid var(--line-1);
  background:var(--ink-900);
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:32px;
  padding-bottom:44px;
}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--text-3);max-width:320px}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.footer-tags span{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 10px;
  border-radius:8px;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:12.5px;
}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li{font-size:14px;color:var(--text-3);line-height:1.7}
.footer-col a{color:var(--text-3);font-size:14px}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-top:22px;
  border-top:1px solid var(--line-1);
  font-size:13px;
  color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .article-wrap{
    grid-template-columns:minmax(0,1fr);
    grid-template-areas:"toc" "body";
    gap:28px;
  }
  .toc{position:static;top:auto}
  .toc-list{flex-direction:row;flex-wrap:wrap;gap:8px}
  .toc-list a{
    border-left:0;
    border:1px solid var(--line-1);
    border-radius:var(--radius-pill);
    padding:6px 14px;
  }
  .toc-list a.current{border-color:var(--line-2);background:rgba(31,224,181,.10);border-left-color:var(--line-2)}
  .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-card{grid-template-columns:1fr}
  .cta-actions{justify-content:flex-start}
}
@media (max-width:991px){
  .container{padding:0 24px}
  .nav-search{max-width:320px}
  .nav-links{gap:14px}
  .header-cta{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .article-hero{padding:36px 0 6px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 18px}
  .header-inner{height:64px;gap:12px}
  .nav-search{display:none}
  .nav-links{display:none}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .site-header .header-cta{display:none}
  .brand-text{font-size:16px}
  .article-hero{padding:28px 0 4px}
  .breadcrumb{font-size:12.5px;margin-bottom:16px}
  .breadcrumb .current{max-width:100%;white-space:normal}
  .article-title{font-size:clamp(24px,6vw,30px);line-height:1.3}
  .article-sub{font-size:14.5px}
  .article-section{padding:32px 0 56px}
  .article-body{font-size:16px;line-height:1.88}
  .article-body h2{margin-top:38px;font-size:21px}
  .article-body h3{font-size:18px}
  .article-body blockquote{padding:16px 18px}
  .rec-grid{grid-template-columns:minmax(0,1fr)}
  .article-foot{margin-top:40px;padding-top:32px}
  .cta-band{padding:0 0 56px}
  .cta-card{padding:26px 22px;border-radius:18px}
  .btn{width:100%}
  .article-actions .btn{width:100%}
  .cta-actions{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:32px}
  .site-footer{padding:48px 0 24px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px}
  .toc{padding:16px}
  .toc-list a{font-size:13px}
}
@media (max-width:479px){
  .article-empty{padding:40px 20px}
  .rec-card{padding:14px}
  .footer-tags span{font-size:12px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .rec-card:hover,.btn:hover{transform:none !important}
  .rec-card:hover .rec-thumb img{transform:none !important}
}

/* roulang page: category1 */
:root{
  --ink-950:#04070F;
  --ink-900:#070C17;
  --ink-800:#0C1424;
  --ink-700:#131C30;
  --line-1:rgba(255,255,255,.08);
  --line-2:rgba(31,224,181,.32);
  --brand:#1FE0B5;
  --brand-deep:#0FA98A;
  --brand-soft:rgba(31,224,181,.12);
  --accent:#FF9A3C;
  --text-1:#EFF5FF;
  --text-2:#C3D0E2;
  --text-3:#8695AC;
  --glass:rgba(255,255,255,.045);
  --glass-line:rgba(255,255,255,.10);
  --r-card:18px;
  --r-btn:12px;
  --r-badge:8px;
  --r-pill:999px;
  --shadow-card:0 10px 30px -18px rgba(0,0,0,.9);
  --shadow-card-hover:0 18px 44px -20px rgba(0,0,0,.95);
  --glow:0 0 0 1px rgba(31,224,181,.55), 0 10px 30px -10px rgba(31,224,181,.55);
  --ease:cubic-bezier(.2,.7,.3,1);
  --nav-h:76px;
  --space-1:8px;
  --space-2:16px;
  --space-3:24px;
  --space-4:32px;
  --space-5:48px;
  --space-6:64px;
  --space-7:96px;
}

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

html{scroll-behavior:smooth;}

body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--text-2);
  background:var(--ink-950);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}

body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    radial-gradient(920px 540px at 80% -10%, rgba(31,224,181,.10), transparent 62%),
    radial-gradient(720px 480px at 6% 2%, rgba(255,154,60,.055), transparent 64%),
    repeating-linear-gradient(0deg, rgba(255,255,255,.032) 0 1px, transparent 1px 64px),
    repeating-linear-gradient(90deg, rgba(255,255,255,.032) 0 1px, transparent 1px 64px);
}

img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;}
a:hover{color:var(--brand-deep);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--text-1);font-weight:700;letter-spacing:-.02em;}
p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}

/* Foundation 覆盖 */
.row,.grid-x,.grid-container{margin-left:0;margin-right:0;max-width:none;padding-left:0;padding-right:0;}
.button,.button.primary,.button.secondary{background:none;border:0;border-radius:0;color:inherit;padding:0;font-family:inherit;font-size:inherit;}
.accordion,.accordion-item,.accordion-title,.accordion-content{background:none;border:0;padding:0;}
.top-bar,.menu,.menu a{background:none;color:inherit;padding:0;}
input,textarea,select{font-family:inherit;}

.container{
  width:100%;
  max-width:1220px;
  margin:0 auto;
  padding:0 32px;
  position:relative;
  z-index:1;
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(7,12,23,.78);
  -webkit-backdrop-filter:blur(16px) saturate(130%);
  backdrop-filter:blur(16px) saturate(130%);
  border-bottom:1px solid var(--line-1);
}
.nav-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:var(--nav-h);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  text-decoration:none;
  color:var(--text-1);
}
.brand-mark{
  width:28px;
  height:28px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:8px;
  background:var(--brand);
  color:#04120E;
  font-size:15px;
  font-weight:700;
  line-height:1;
  box-shadow:0 8px 20px -10px rgba(31,224,181,.75);
}
.brand-text{
  display:inline-flex;
  align-items:baseline;
  gap:0;
  font-size:17px;
  letter-spacing:.01em;
  white-space:nowrap;
}
.brand-text b{font-weight:700;color:var(--text-1);}
.brand-text em{font-style:normal;font-weight:500;color:var(--brand);}

.search-form{
  flex:1 1 auto;
  max-width:560px;
  display:flex;
  align-items:center;
  gap:8px;
  height:46px;
  padding:0 5px 0 16px;
  border:1px solid var(--line-1);
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.03);
  transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease),background 180ms var(--ease);
}
.search-form:focus-within{
  border-color:var(--line-2);
  box-shadow:0 0 0 2px rgba(31,224,181,.22);
  background:rgba(255,255,255,.05);
}
.search-icon{flex:0 0 auto;color:var(--text-3);line-height:0;}
.search-form input{
  flex:1 1 auto;
  min-width:0;
  height:100%;
  border:0;
  background:none;
  color:var(--text-1);
  font-size:14px;
  outline:none;
}
.search-form input::placeholder{color:var(--text-3);}
.search-submit{
  flex:0 0 auto;
  height:36px;
  padding:0 16px;
  border:0;
  border-radius:var(--r-pill);
  background:var(--brand);
  color:#04120E;
  font-size:14px;
  font-weight:700;
  cursor:pointer;
  transition:filter 180ms var(--ease),transform 180ms var(--ease);
}
.search-submit:hover{filter:brightness(1.06);transform:translateY(-1px);}
.search-submit:active{transform:translateY(0);}

.nav-links{
  display:flex;
  align-items:center;
  gap:22px;
  flex:0 0 auto;
}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:14px;
  color:var(--text-2);
  text-decoration:none;
  transition:color 180ms var(--ease);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:2px;
  border-radius:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform 180ms var(--ease);
}
.nav-links a:hover{color:var(--text-1);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--brand);}
.nav-links a.active::after{transform:scaleX(1);}

.nav-cta{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 18px;
  border:1px solid var(--line-1);
  border-radius:var(--r-pill);
  color:var(--text-1);
  font-size:14px;
  font-weight:600;
  text-decoration:none;
  transition:border-color 180ms var(--ease),color 180ms var(--ease),background 180ms var(--ease);
}
.nav-cta:hover{border-color:var(--line-2);color:var(--brand);background:var(--brand-soft);}

.mobile-actions{display:none;margin-left:auto;align-items:center;gap:6px;}
.icon-btn{
  width:44px;
  height:44px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line-1);
  border-radius:12px;
  background:rgba(255,255,255,.03);
  color:var(--text-2);
  cursor:pointer;
  transition:border-color 180ms var(--ease),color 180ms var(--ease);
}
.icon-btn:hover{border-color:var(--line-2);color:var(--brand);}

.mobile-search{
  display:none;
  padding:0 0 12px;
}
.mobile-search.is-open{display:block;}

.drawer{
  position:fixed;
  left:0;
  right:0;
  top:var(--nav-h);
  bottom:0;
  z-index:79;
  padding:20px 18px 40px;
  background:rgba(4,7,15,.97);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border-top:1px solid var(--line-1);
  overflow-y:auto;
  opacity:0;
  transform:translateY(-10px);
  pointer-events:none;
  transition:opacity 200ms var(--ease),transform 200ms var(--ease);
}
.drawer.is-open{opacity:1;transform:none;pointer-events:auto;}
.drawer-title{
  font-size:13px;
  letter-spacing:.12em;
  color:var(--text-3);
  margin-bottom:12px;
}
.drawer-list a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:52px;
  padding:0 14px;
  border:1px solid var(--line-1);
  border-radius:var(--r-btn);
  margin-bottom:10px;
  color:var(--text-1);
  font-size:15px;
  font-weight:600;
  text-decoration:none;
  background:rgba(255,255,255,.02);
}
.drawer-list a.active{color:var(--brand);border-color:var(--line-2);background:var(--brand-soft);}
.drawer-list a span{color:var(--text-3);font-weight:400;}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding:28px 0 0;
  font-size:13px;
  color:var(--text-3);
}
.breadcrumb a{color:var(--text-3);text-decoration:none;transition:color 180ms var(--ease);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:rgba(255,255,255,.18);}
.breadcrumb .current{color:var(--text-2);}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  padding:44px 0 72px;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(135deg, rgba(4,7,15,.82) 0%, rgba(4,7,15,.92) 58%, rgba(4,7,15,.98) 100%),
    url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  opacity:.9;
  z-index:0;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:repeating-linear-gradient(90deg, rgba(255,255,255,.04) 0 1px, transparent 1px 72px);
  opacity:.55;
  pointer-events:none;
  z-index:0;
}
.hero-grid{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:48px;
  align-items:start;
}
.kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:28px;
  padding:0 12px;
  border-radius:var(--r-badge);
  background:var(--brand-soft);
  border:1px solid var(--line-2);
  color:var(--brand);
  font-size:13px;
  font-weight:600;
  letter-spacing:.06em;
}
.page-hero h1{
  margin-top:20px;
  font-size:clamp(30px,4.2vw,50px);
  line-height:1.15;
  letter-spacing:-.02em;
  font-weight:700;
  max-width:20em;
}
.page-hero .lede{
  margin-top:18px;
  max-width:38em;
  font-size:17px;
  line-height:1.75;
  color:var(--text-3);
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:32px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:12px 22px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  text-decoration:none;
  cursor:pointer;
  border:1px solid transparent;
  transition:transform 180ms var(--ease),box-shadow 180ms var(--ease),filter 180ms var(--ease),border-color 180ms var(--ease),color 180ms var(--ease),background 180ms var(--ease);
}
.btn-primary{
  background:var(--brand);
  color:#04120E;
  box-shadow:var(--glow);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);color:#04120E;}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:rgba(255,255,255,.02);
  border-color:var(--line-1);
  color:var(--text-1);
}
.btn-ghost:hover{border-color:var(--line-2);color:var(--brand);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}

.hero-side{
  border:1px solid var(--glass-line);
  border-radius:var(--r-card);
  background:var(--glass);
  -webkit-backdrop-filter:blur(18px) saturate(130%);
  backdrop-filter:blur(18px) saturate(130%);
  box-shadow:var(--shadow-card), inset 0 1px 0 rgba(255,255,255,.07);
  padding:24px;
}
.hero-side h3{
  font-size:15px;
  color:var(--text-1);
  letter-spacing:.02em;
}
.hero-side ul{margin-top:14px;display:grid;gap:12px;}
.hero-side li{
  display:flex;
  gap:10px;
  font-size:14px;
  line-height:1.7;
  color:var(--text-2);
}
.hero-side li::before{
  content:"";
  flex:0 0 auto;
  width:6px;
  height:6px;
  margin-top:9px;
  border-radius:2px;
  background:var(--brand);
  box-shadow:0 0 10px rgba(31,224,181,.7);
}
.hero-meta{
  margin-top:18px;
  padding-top:16px;
  border-top:1px solid var(--line-1);
  font-size:13px;
  color:var(--text-3);
}
.hero-meta b{color:var(--accent);font-weight:600;font-variant-numeric:tabular-nums;}

/* ============ 锚点导航 ============ */
.anchor-nav{
  position:sticky;
  top:var(--nav-h);
  z-index:45;
  background:rgba(4,7,15,.88);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-1);
  border-top:1px solid var(--line-1);
}
.anchor-inner{
  display:flex;
  align-items:center;
  gap:10px;
  padding:12px 0;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.anchor-inner::-webkit-scrollbar{display:none;}
.pill{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 18px;
  border-radius:var(--r-pill);
  border:1px solid var(--line-1);
  background:rgba(255,255,255,.02);
  color:var(--text-2);
  font-size:14px;
  text-decoration:none;
  white-space:nowrap;
  transition:border-color 180ms var(--ease),color 180ms var(--ease),background 180ms var(--ease);
}
.pill:hover{border-color:var(--line-2);color:var(--text-1);}
.pill.current{border-color:var(--line-2);color:var(--brand);background:var(--brand-soft);}

/* ============ 步骤条 ============ */
.section{padding:96px 0;}
.section-tight{padding:56px 0;}
.steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--line-1);
  border:1px solid var(--line-1);
  border-radius:var(--r-card);
  overflow:hidden;
}
.step{
  background:var(--ink-900);
  padding:26px 24px;
}
.step .step-num{
  font-size:13px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
}
.step h3{margin-top:10px;font-size:16px;font-weight:600;}
.step p{margin-top:8px;font-size:14px;line-height:1.7;color:var(--text-3);}

/* ============ 目录分组 ============ */
.group{
  scroll-margin-top:150px;
}
.group + .group{margin-top:56px;}
.group-head{
  display:grid;
  grid-template-columns:minmax(0,1fr) 360px;
  gap:32px;
  align-items:end;
  padding-bottom:22px;
  border-bottom:1px solid var(--line-1);
}
.group-head h2{
  display:flex;
  align-items:center;
  gap:14px;
  font-size:clamp(23px,2.4vw,32px);
  line-height:1.25;
}
.group-head h2 .bar{
  display:inline-block;
  width:4px;
  height:26px;
  border-radius:2px;
  background:var(--brand);
  box-shadow:0 6px 18px -6px rgba(31,224,181,.9);
  flex:0 0 auto;
}
.group-head p{font-size:15px;line-height:1.75;color:var(--text-3);}

.index-list{
  margin-top:8px;
  border-top:1px solid transparent;
}
.idx-item{
  display:grid;
  grid-template-columns:56px minmax(0,1fr) 24px;
  gap:16px;
  align-items:center;
  min-height:56px;
  padding:14px 12px;
  border-bottom:1px solid var(--line-1);
  transition:background 180ms var(--ease),padding-left 180ms var(--ease);
}
.idx-item:hover{background:var(--glass);padding-left:20px;}
.idx-num{
  font-size:15px;
  font-weight:700;
  letter-spacing:.1em;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
}
.idx-body{min-width:0;}
.idx-title{
  display:block;
  font-size:16px;
  font-weight:600;
  color:var(--text-1);
  line-height:1.5;
}
.idx-desc{
  display:block;
  margin-top:3px;
  font-size:14px;
  line-height:1.7;
  color:var(--text-3);
}
.idx-arrow{
  color:var(--text-3);
  font-size:16px;
  line-height:1;
  transition:transform 180ms var(--ease),color 180ms var(--ease);
}
.idx-item:hover .idx-arrow{transform:translateX(4px);color:var(--brand);}

/* ============ 注意事项 ============ */
.notes{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
  margin-top:32px;
}
.note{
  border:1px solid var(--glass-line);
  border-left:3px solid var(--brand);
  border-radius:0 var(--r-card) var(--r-card) 0;
  background:var(--glass);
  -webkit-backdrop-filter:blur(18px) saturate(130%);
  backdrop-filter:blur(18px) saturate(130%);
  padding:20px 24px;
  box-shadow:var(--shadow-card), inset 0 1px 0 rgba(255,255,255,.06);
}
.note h3{font-size:16px;font-weight:600;}
.note p{margin-top:8px;font-size:14.5px;line-height:1.8;color:var(--text-2);}

/* ============ CTA 条 ============ */
.cta-band{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1.5fr) minmax(0,.8fr);
  gap:40px;
  align-items:center;
  padding:44px;
  border:1px solid var(--glass-line);
  border-radius:var(--r-card);
  background:linear-gradient(135deg, rgba(31,224,181,.12), rgba(255,255,255,.02) 58%);
  -webkit-backdrop-filter:blur(18px) saturate(130%);
  backdrop-filter:blur(18px) saturate(130%);
  box-shadow:var(--shadow-card), inset 0 1px 0 rgba(255,255,255,.07);
  overflow:hidden;
}
.cta-band h2{font-size:clamp(23px,2.4vw,30px);line-height:1.3;}
.cta-band p{margin-top:12px;font-size:15.5px;line-height:1.8;color:var(--text-2);max-width:34em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.cta-figure{
  border-radius:14px;
  overflow:hidden;
  border:1px solid var(--line-1);
  box-shadow:var(--shadow-card);
}
.cta-figure img{
  width:100%;
  aspect-ratio:3/2;
  object-fit:cover;
  transition:transform 260ms var(--ease);
}
.cta-figure:hover img{transform:scale(1.03);}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  z-index:1;
  margin-top:96px;
  padding:72px 0 0;
  border-top:1px solid var(--line-1);
  background:rgba(7,12,23,.6);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:32px;
  padding-bottom:56px;
}
.footer-brand p{
  margin-top:16px;
  font-size:14px;
  line-height:1.8;
  color:var(--text-3);
  max-width:22em;
}
.footer-tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:18px;
}
.footer-tags span{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 10px;
  border-radius:var(--r-badge);
  background:var(--brand-soft);
  color:var(--brand);
  font-size:13px;
}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  color:var(--text-1);
  letter-spacing:.04em;
  margin-bottom:16px;
}
.footer-col ul{display:grid;gap:10px;}
.footer-col li{font-size:14px;color:var(--text-3);line-height:1.7;}
.footer-col a{
  color:var(--text-3);
  text-decoration:none;
  transition:color 180ms var(--ease);
}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:22px 0 32px;
  border-top:1px solid var(--line-1);
  font-size:13px;
  color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .nav-links{gap:16px;}
  .nav-cta{display:none;}
  .hero-grid{grid-template-columns:minmax(0,1fr) 280px;gap:32px;}
}

@media (max-width:1023px){
  .container{padding:0 24px;}
  .section{padding:72px 0;}
  .nav-inner{gap:16px;}
  .nav-links{display:none;}
  .nav-cta{display:none;}
  .mobile-actions{display:flex;}
  .search-form{max-width:320px;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-side{max-width:520px;}
  .group-head{grid-template-columns:1fr;gap:12px;align-items:start;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .cta-band{grid-template-columns:1fr;padding:36px;}
  .cta-figure{max-width:420px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}

@media (max-width:767px){
  :root{--nav-h:68px;}
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .search-form{display:none;}
  .mobile-search{display:block;}
  .mobile-search .search-form{display:flex;max-width:none;height:44px;}
  .page-hero{padding:32px 0 48px;}
  .breadcrumb{padding-top:20px;}
  .page-hero h1{font-size:clamp(26px,7vw,34px);}
  .page-hero .lede{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
  .steps{grid-template-columns:1fr;}
  .idx-item{grid-template-columns:40px minmax(0,1fr) 20px;gap:12px;padding:14px 6px;}
  .idx-item:hover{padding-left:10px;}
  .notes{grid-template-columns:1fr;}
  .cta-band{padding:26px;gap:24px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:40px;}
  .site-footer{margin-top:56px;padding-top:48px;}
  .anchor-nav{top:var(--nav-h);}
  .group + .group{margin-top:40px;}
}

@media (max-width:480px){
  .brand-text{font-size:15px;}
  .hero-meta{font-size:12.5px;}
  .idx-title{font-size:15px;}
  .idx-desc{font-size:13.5px;}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    transition-duration:.01ms !important;
    animation-duration:.01ms !important;
  }
  .idx-item:hover{padding-left:12px;}
  .idx-item:hover .idx-arrow{transform:none;}
  .cta-figure:hover img{transform:none;}
  .btn:hover{transform:none;}
}

/* roulang page: category2 */
:root{
  --ink-950:#04070F; --ink-900:#070C17; --ink-800:#0C1424; --ink-700:#131C30;
  --line-1:rgba(255,255,255,.08); --line-2:rgba(31,224,181,.32);
  --brand:#1FE0B5; --brand-deep:#0FA98A; --brand-soft:rgba(31,224,181,.12);
  --accent:#FF9A3C;
  --text-1:#EFF5FF; --text-2:#C3D0E2; --text-3:#8695AC;
  --glass:rgba(255,255,255,.045);
  --glass-border:rgba(255,255,255,.10);
  --r-card:18px; --r-img:20px; --r-btn:12px; --r-badge:8px;
  --shadow-card:0 10px 30px -18px rgba(0,0,0,.9);
  --shadow-card-hover:0 18px 44px -20px rgba(0,0,0,.95);
  --shadow-glow:0 0 0 1px rgba(31,224,181,.55), 0 10px 30px -10px rgba(31,224,181,.55);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1220px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--ink-950);color:var(--text-2);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16.5px;line-height:1.85;font-weight:400;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;opacity:.55;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:#5cf0cd}
a:focus-visible,button:focus-visible,input:focus-visible,.chip:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;
}
h1,h2,h3,h4{margin:0;color:var(--text-1);font-weight:700;letter-spacing:-.01em}
p{margin:0 0 18px}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;position:relative;z-index:1}
.row,.columns{margin-left:0!important;margin-right:0!important;padding-left:0!important;padding-right:0!important;max-width:none!important;float:none!important}
.button,.btn{transition:transform .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease),color .18s var(--ease)}
input,select,textarea{font-family:inherit}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(7,12,23,.76);
  -webkit-backdrop-filter:blur(16px) saturate(130%);
  backdrop-filter:blur(16px) saturate(130%);
  border-bottom:1px solid var(--line-1);
}
.header-inner{display:flex;align-items:center;gap:24px;height:76px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:28px;height:28px;border-radius:8px;display:grid;place-items:center;
  background:linear-gradient(135deg,#2AF0C2,#0FA98A);color:#04231C;
  font-size:15px;font-weight:700;line-height:1;
  box-shadow:0 6px 18px -8px rgba(31,224,181,.9);
}
.brand-text{display:flex;align-items:baseline;gap:2px;font-size:17px;letter-spacing:.01em}
.brand-text b{color:var(--text-1);font-weight:700}
.brand-text em{font-style:normal;color:var(--brand);font-weight:600}
.nav-search{
  display:flex;align-items:center;gap:8px;height:46px;flex:1 1 auto;min-width:0;max-width:560px;
  padding:0 6px 0 16px;border-radius:999px;
  background:rgba(255,255,255,.04);border:1px solid var(--line-1);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.nav-search:focus-within{border-color:var(--line-2);box-shadow:0 0 0 2px rgba(31,224,181,.22)}
.nav-search svg{flex:0 0 16px;width:16px;height:16px;stroke:var(--text-3)}
.nav-search input{
  flex:1 1 auto;min-width:0;height:100%;border:0;background:transparent;outline:none;
  color:var(--text-1);font-size:14px;
}
.nav-search input::placeholder{color:var(--text-3);font-size:13.5px}
.nav-search button{
  flex:0 0 auto;height:34px;padding:0 16px;border:0;border-radius:999px;cursor:pointer;
  background:var(--brand-soft);color:var(--brand);font-size:13px;font-weight:600;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.nav-search button:hover{background:rgba(31,224,181,.22);color:#8BFFE4}
.nav-links{display:flex;align-items:center;gap:22px;margin-left:auto}
.nav-links a{
  position:relative;color:var(--text-2);font-size:14px;padding:8px 0;white-space:nowrap;
  transition:color .18s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .18s var(--ease);
}
.nav-links a:hover{color:var(--text-1)}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-links a.active{color:var(--text-1);font-weight:600}
.nav-cta{
  flex:0 0 auto;display:inline-flex;align-items:center;height:40px;padding:0 20px;border-radius:999px;
  border:1px solid var(--line-1);color:var(--text-1);font-size:14px;font-weight:600;white-space:nowrap;
  transition:border-color .18s var(--ease),background .18s var(--ease),transform .18s var(--ease);
}
.nav-cta:hover{border-color:var(--line-2);background:var(--glass);color:var(--text-1);transform:translateY(-1px)}
.icon-btn{
  display:none;width:44px;height:44px;border:1px solid var(--line-1);border-radius:12px;
  background:transparent;color:var(--text-1);cursor:pointer;align-items:center;justify-content:center;
  transition:border-color .18s var(--ease),background .18s var(--ease);
}
.icon-btn:hover{border-color:var(--line-2);background:var(--glass)}
.icon-btn svg{width:18px;height:18px;stroke:currentColor}
.mobile-search{display:none;padding:0 0 14px}
.mobile-search .nav-search{max-width:none;height:44px}
.drawer{
  position:fixed;inset:76px 0 0 0;z-index:79;background:rgba(4,7,15,.96);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  padding:24px;transform:translateY(-12px);opacity:0;visibility:hidden;
  transition:opacity .18s var(--ease),transform .18s var(--ease),visibility .18s;
}
body.menu-open .drawer{opacity:1;visibility:visible;transform:translateY(0)}
.drawer .nav-search{margin-bottom:20px}
.drawer a{
  display:block;padding:14px 0;font-size:16px;color:var(--text-1);
  border-bottom:1px solid var(--line-1);
}
.drawer a.active{color:var(--brand)}

/* ---------- 页面首屏 ---------- */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line-1);padding:56px 0 48px}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:0;
  background-image:
    linear-gradient(135deg,rgba(4,7,15,.78) 0%,rgba(4,7,15,.9) 55%,rgba(4,7,15,.98) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px;flex-wrap:wrap}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:rgba(255,255,255,.2)}
.breadcrumb .current{color:var(--text-2)}
.page-hero h1{font-size:clamp(30px,4.2vw,50px);line-height:1.15;letter-spacing:-.02em;max-width:860px}
.page-hero__lead{margin-top:18px;max-width:660px;font-size:17px;line-height:1.75;color:var(--text-3)}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.pill{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-badge);
  background:var(--brand-soft);color:var(--brand);font-size:13px;font-weight:600;
}
.pill.dim{background:rgba(255,255,255,.05);color:var(--text-3);font-weight:500}

/* ---------- 筛选 chips ---------- */
.chips-wrap{padding:28px 0 0}
.chips{display:flex;gap:10px;flex-wrap:wrap}
.chip{
  height:38px;padding:0 18px;border-radius:999px;cursor:pointer;
  background:rgba(255,255,255,.03);border:1px solid var(--line-1);color:var(--text-2);
  font-size:14px;font-weight:500;
  transition:border-color .18s var(--ease),color .18s var(--ease),background .18s var(--ease);
}
.chip:hover{border-color:var(--line-2);color:var(--text-1)}
.chip.is-active{border-color:var(--line-2);color:var(--brand);background:var(--brand-soft);font-weight:600}

/* ---------- 顶部图文 ---------- */
.section{padding:48px 0}
.section-lg{padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.section-head h2{font-size:clamp(23px,2.4vw,32px);line-height:1.25}
.section-head p{margin:10px 0 0;font-size:15px;color:var(--text-3);max-width:560px}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand)}
.link-more span{transition:transform .18s var(--ease)}
.link-more:hover span{transform:translateX(4px)}

.top-feature{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.feature-visual{
  grid-column:span 8;position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--glass-border);background:var(--ink-700);box-shadow:var(--shadow-card);
}
.feature-visual img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s var(--ease)}
.feature-visual:hover img{transform:scale(1.03)}
.feature-visual__body{
  position:absolute;left:0;right:0;bottom:0;padding:28px;
  background:linear-gradient(180deg,rgba(4,7,15,0) 0%,rgba(4,7,15,.86) 62%,rgba(4,7,15,.96) 100%);
}
.feature-visual__body h3{font-size:20px;line-height:1.4;margin:12px 0 8px;max-width:520px}
.feature-visual__body p{font-size:14.5px;line-height:1.75;color:var(--text-2);max-width:520px;margin:0}
.feature-side{
  grid-column:span 4;display:flex;flex-direction:column;gap:16px;
  padding:28px;border-radius:var(--r-card);border:1px solid var(--glass-border);
  background:rgba(255,255,255,.045);
  -webkit-backdrop-filter:blur(18px) saturate(130%);
  backdrop-filter:blur(18px) saturate(130%);
  box-shadow:var(--shadow-card);
}
.feature-side h3{font-size:18px}
.feature-side ul{margin-top:6px}
.feature-side li{display:flex;gap:12px;padding:12px 0;border-top:1px solid var(--line-1);font-size:14.5px;line-height:1.7;color:var(--text-2)}
.feature-side li:first-child{border-top:0}
.feature-side li b{color:var(--text-1);font-weight:600;flex:0 0 56px}
.feature-side .link-more{margin-top:auto;padding-top:16px}

/* ---------- 杂志图文列表 ---------- */
.mag-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.mag-card{
  grid-column:span 7;display:flex;flex-direction:column;
  border-radius:var(--r-card);border:1px solid var(--glass-border);
  background:rgba(255,255,255,.04);
  -webkit-backdrop-filter:blur(18px) saturate(130%);
  backdrop-filter:blur(18px) saturate(130%);
  box-shadow:var(--shadow-card);overflow:hidden;
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.mag-card.w5{grid-column:span 5}
.mag-card:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:var(--shadow-card-hover)}
.mag-card__img{overflow:hidden;border-radius:0}
.mag-card__img img{width:100%;aspect-ratio:3/2;object-fit:cover;transition:transform .35s var(--ease)}
.mag-card:hover .mag-card__img img{transform:scale(1.03)}
.mag-card__body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.badge-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13px;color:var(--text-3)}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:var(--r-badge);
  background:var(--brand-soft);color:var(--brand);font-size:13px;font-weight:600;
}
.mag-card__body h3{font-size:18px;line-height:1.45}
.mag-card__body p{font-size:14.5px;line-height:1.75;color:var(--text-2);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mag-card__foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:8px}
.mag-card__foot .arrow{color:var(--brand);font-size:18px;transition:transform .18s var(--ease)}
.mag-card:hover .mag-card__foot .arrow{transform:translateX(4px)}
.mag-card__foot .tag{font-size:13px;color:var(--text-3)}

/* ---------- 分页占位 ---------- */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:48px}
.pager a{
  display:block;padding:22px 24px;border-radius:var(--r-card);border:1px solid var(--line-1);
  background:rgba(255,255,255,.03);color:var(--text-1);
  transition:border-color .18s var(--ease),background .18s var(--ease),transform .18s var(--ease);
}
.pager a:hover{border-color:var(--line-2);background:var(--glass);transform:translateY(-2px);color:var(--text-1)}
.pager .dir{display:block;font-size:13px;color:var(--text-3);margin-bottom:6px}
.pager .ttl{font-size:16px;font-weight:600}
.pager .next{text-align:right}

/* ---------- CTA ---------- */
.cta-band{
  margin:72px 0;padding:40px;border-radius:var(--r-card);
  border:1px solid var(--glass-border);
  background:
    radial-gradient(120% 140% at 12% 0%,rgba(31,224,181,.14) 0%,rgba(31,224,181,0) 55%),
    rgba(255,255,255,.045);
  -webkit-backdrop-filter:blur(18px) saturate(130%);
  backdrop-filter:blur(18px) saturate(130%);
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(22px,2.2vw,28px);line-height:1.35}
.cta-band p{margin:10px 0 0;color:var(--text-3);font-size:15px;max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;line-height:1.4;
}
.btn-primary{background:var(--brand);color:#04231C;box-shadow:var(--shadow-glow)}
.btn-primary:hover{background:#3FEEC6;color:#04231C;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0);background:var(--brand-deep)}
.btn-ghost{background:transparent;border-color:var(--line-1);color:var(--text-1)}
.btn-ghost:hover{border-color:var(--line-2);background:var(--glass);color:var(--text-1);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--line-1);background:var(--ink-900);padding:64px 0 0;margin-top:24px;position:relative;z-index:1}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:48px}
.footer-brand p{margin:16px 0 0;font-size:14.5px;line-height:1.75;color:var(--text-3);max-width:320px}
.footer-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
.footer-tags span{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:var(--r-badge);
  background:rgba(255,255,255,.05);color:var(--text-3);font-size:12.5px;
}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text-1)}
.footer-col ul li{padding:7px 0;font-size:14px;color:var(--text-3)}
.footer-col a{color:var(--text-3)}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line-1);padding:22px 0 28px;font-size:13px;color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .nav-search{max-width:380px}
  .nav-links{gap:16px}
}
@media (max-width:991px){
  .container{padding:0 24px}
  .section,.section-lg{padding:56px 0}
  .nav-search{max-width:300px}
  .nav-links{display:none}
  .nav-cta{display:none}
  .icon-btn{display:inline-flex;margin-left:auto}
  .top-feature{grid-template-columns:1fr}
  .feature-visual,.feature-side{grid-column:1/-1}
  .mag-card,.mag-card.w5{grid-column:span 6}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-band{padding:32px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .header-inner{height:64px;gap:12px}
  .drawer{inset:64px 0 0 0}
  .nav-search{display:none}
  .brand-text{font-size:16px}
  .page-hero{padding:40px 0 34px}
  .page-hero__lead{font-size:15.5px}
  .section,.section-lg{padding:48px 0}
  .mag-card,.mag-card.w5{grid-column:1/-1}
  .pager{grid-template-columns:1fr}
  .pager .next{text-align:left}
  .cta-band{padding:26px;margin:48px 0;gap:24px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  body.expand-search .mobile-search{display:block}
  .mag-card:hover,.pager a:hover,.cta-band .btn:hover{transform:none}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .page-hero h1{font-size:28px}
  .chip{height:36px;padding:0 14px;font-size:13px}
  .mag-card__body{padding:20px}
  .footer-bottom{font-size:12.5px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  .mag-card:hover,.feature-visual:hover img,.mag-card:hover .mag-card__img img{transform:none}
}

/* roulang page: category3 */
:root{
  --ink-950:#04070F;
  --ink-900:#070C17;
  --ink-800:#0C1424;
  --ink-700:#131C30;
  --line-1:rgba(255,255,255,.08);
  --line-2:rgba(31,224,181,.32);
  --brand:#1FE0B5;
  --brand-deep:#0FA98A;
  --brand-soft:rgba(31,224,181,.12);
  --accent:#FF9A3C;
  --text-1:#EFF5FF;
  --text-2:#C3D0E2;
  --text-3:#8695AC;
  --glass:rgba(255,255,255,.045);
  --glass-line:rgba(255,255,255,.10);
  --radius-card:18px;
  --radius-btn:12px;
  --radius-pill:999px;
  --shadow-card:0 10px 30px -18px rgba(0,0,0,.9);
  --shadow-card-hover:0 18px 44px -20px rgba(0,0,0,.95);
  --glow:0 0 0 1px rgba(31,224,181,.55), 0 10px 30px -10px rgba(31,224,181,.55);
  --ease:180ms cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--text-2);
  background:var(--ink-950);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:72px 72px;
  opacity:.45;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color var(--ease),border-color var(--ease),opacity var(--ease);}
a:hover{color:#5FF0CE;}
p{margin:0 0 18px;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{color:var(--text-1);margin:0;font-weight:700;line-height:1.25;}
h1{font-size:clamp(30px,4.2vw,46px);line-height:1.16;letter-spacing:-.02em;}
h2{font-size:clamp(23px,2.4vw,30px);}
h3{font-size:20px;font-weight:600;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(31,224,181,.28);color:#fff;}
.container{
  width:100%;
  max-width:1220px;
  margin:0 auto;
  padding:0 32px;
  position:relative;
  z-index:1;
}
/* Foundation 覆盖 */
.row{margin-left:-12px;margin-right:-12px;}
.button{background:transparent;color:var(--text-1);border:1px solid var(--line-1);border-radius:var(--radius-btn);font-family:inherit;text-transform:none;}
.button:focus{outline:2px solid var(--brand);outline-offset:2px;}
/* 顶部导航 */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(7,12,23,.78);
  -webkit-backdrop-filter:blur(16px) saturate(130%);
  backdrop-filter:blur(16px) saturate(130%);
  border-bottom:1px solid var(--line-1);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:76px;
  padding:10px 0;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--text-1);
  font-size:18px;
  letter-spacing:.01em;
}
.brand:hover{color:var(--text-1);}
.brand-mark{
  width:28px;
  height:28px;
  border-radius:8px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#04070F;
  font-size:15px;
  font-weight:700;
  box-shadow:0 6px 18px -10px rgba(31,224,181,.9);
}
.brand-text{display:inline-flex;align-items:baseline;gap:2px;white-space:nowrap;}
.brand-text b{color:var(--brand);font-weight:700;}
.brand-text em{color:var(--text-1);font-style:normal;font-weight:500;}
.nav-search{
  flex:1 1 auto;
  max-width:560px;
  display:flex;
  align-items:center;
  gap:10px;
  height:46px;
  padding:0 6px 0 16px;
  background:rgba(255,255,255,.03);
  border:1px solid var(--line-1);
  border-radius:var(--radius-pill);
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.nav-search i{color:var(--text-3);font-size:14px;}
.nav-search input{
  flex:1 1 auto;
  min-width:0;
  background:transparent;
  border:0;
  color:var(--text-1);
  font-size:14px;
  height:100%;
}
.nav-search input::placeholder{color:var(--text-3);}
.nav-search input:focus{outline:none;}
.nav-search:focus-within{
  border-color:var(--line-2);
  box-shadow:0 0 0 2px rgba(31,224,181,.25);
  background:rgba(255,255,255,.05);
}
.nav-search button{
  flex:0 0 auto;
  height:34px;
  padding:0 16px;
  border:0;
  border-radius:var(--radius-pill);
  background:var(--brand);
  color:#04070F;
  font-size:13.5px;
  font-weight:600;
  transition:background var(--ease),transform var(--ease);
}
.nav-search button:hover{background:#3AE9C2;}
.nav-search button:active{transform:translateY(1px);}
.nav-links{
  display:flex;
  align-items:center;
  gap:22px;
  flex:0 0 auto;
}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:6px 0;
  color:var(--text-2);
  font-size:14px;
  font-weight:500;
  white-space:nowrap;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:2px;
  background:var(--brand);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--ease);
}
.nav-links a:hover{color:var(--text-1);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--text-1);font-weight:600;}
.nav-links a.active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.icon-btn{
  display:none;
  width:44px;
  height:44px;
  align-items:center;
  justify-content:center;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line-1);
  border-radius:12px;
  color:var(--text-1);
  font-size:15px;
  transition:border-color var(--ease),background var(--ease);
}
.icon-btn:hover{border-color:var(--line-2);background:rgba(255,255,255,.07);}
.mobile-panel{
  display:none;
  border-top:1px solid var(--line-1);
  background:rgba(7,12,23,.97);
  padding:16px 0 22px;
}
.mobile-panel.is-open{display:block;}
.mobile-panel .nav-search{max-width:none;margin-bottom:16px;}
.mobile-panel nav{display:flex;flex-direction:column;gap:4px;margin-bottom:16px;}
.mobile-panel nav a{
  display:block;
  padding:12px 4px;
  color:var(--text-2);
  font-size:15.5px;
  border-bottom:1px solid var(--line-1);
}
.mobile-panel nav a.active{color:var(--brand);font-weight:600;}
/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  border:1px solid transparent;
  transition:background var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease),color var(--ease);
}
.btn-sm{padding:9px 16px;font-size:14px;}
.btn-primary{background:var(--brand);color:#04070F;box-shadow:var(--glow);}
.btn-primary:hover{background:#3AE9C2;color:#04070F;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--line-1);color:var(--text-1);}
.btn-ghost:hover{border-color:var(--line-2);color:var(--text-1);}
.btn-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--brand);
  font-weight:600;
  font-size:15px;
  text-decoration:underline;
  text-underline-offset:4px;
  text-decoration-thickness:1px;
}
.btn-link:hover{color:#5FF0CE;}
/* 面包屑 */
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  padding:24px 0 0;
}
.crumbs a{color:var(--text-3);}
.crumbs a:hover{color:var(--brand);}
.crumbs span.sep{color:rgba(255,255,255,.18);}
.crumbs span.current{color:var(--text-2);}
/* 页头 */
.page-hero{
  position:relative;
  padding:36px 0 56px;
  background:
    linear-gradient(135deg,rgba(7,12,23,.94) 0%,rgba(4,7,15,.98) 70%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  border-bottom:1px solid var(--line-1);
  overflow:hidden;
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:26px;
  padding:0 12px;
  border-radius:8px;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:13px;
  font-weight:600;
  margin-bottom:20px;
}
.page-hero h1{max-width:880px;margin-bottom:20px;}
.page-hero h1 .hl{color:var(--brand);}
.hero-lead{
  max-width:760px;
  font-size:17px;
  line-height:1.75;
  color:var(--text-3);
  margin-bottom:28px;
}
.hero-facts{
  display:flex;
  flex-wrap:wrap;
  gap:14px 40px;
}
.fact{display:flex;align-items:baseline;gap:8px;}
.fact b{
  font-size:20px;
  font-weight:700;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
}
.fact span{font-size:13px;color:var(--text-3);}
/* 板块 */
.section{padding:88px 0;position:relative;}
.section-alt{background:linear-gradient(180deg,rgba(12,20,36,.55),rgba(4,7,15,0));border-top:1px solid var(--line-1);border-bottom:1px solid var(--line-1);}
.section-head{margin-bottom:40px;}
.eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--brand);
  margin-bottom:12px;
}
.section-head h2{margin-bottom:12px;}
.section-head p{max-width:720px;color:var(--text-3);font-size:16px;margin:0;}
/* 自查三步 */
.checkup{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:32px;
  align-items:center;
}
.checkup-list{display:flex;flex-direction:column;gap:18px;margin-top:8px;}
.step{
  display:flex;
  gap:16px;
  padding:18px 20px;
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.step:hover{border-color:var(--line-2);transform:translateY(-2px);box-shadow:var(--shadow-card-hover);}
.step .num{
  flex:0 0 auto;
  font-size:15px;
  font-weight:700;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
  line-height:1.6;
}
.step h3{font-size:16.5px;margin-bottom:6px;}
.step p{margin:0;font-size:14.5px;color:var(--text-3);line-height:1.75;}
.media{
  border-radius:20px;
  overflow:hidden;
  border:1px solid var(--glass-line);
  box-shadow:var(--shadow-card);
  position:relative;
}
.media img{
  width:100%;
  height:100%;
  aspect-ratio:16/11;
  object-fit:cover;
  transition:transform 320ms cubic-bezier(.2,.7,.3,1);
}
.media:hover img{transform:scale(1.03);}
.media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(135deg,rgba(4,7,15,.15),rgba(4,7,15,.55));
  pointer-events:none;
}
/* 问答 + 时间线 */
.qa-layout{
  display:grid;
  grid-template-columns:2fr 1fr;
  gap:32px;
  align-items:start;
}
.panel{
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  -webkit-backdrop-filter:blur(18px) saturate(130%);
  backdrop-filter:blur(18px) saturate(130%);
  overflow:hidden;
}
.panel-head{
  padding:22px 24px 18px;
  border-bottom:1px solid var(--line-1);
}
.panel-head h3{font-size:17px;margin-bottom:4px;}
.panel-head p{margin:0;font-size:13.5px;color:var(--text-3);}
.qa-item{border-bottom:1px solid var(--line-1);}
.qa-item:last-child{border-bottom:0;}
.qa-question{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:56px;
  padding:14px 24px;
  background:transparent;
  border:0;
  text-align:left;
  color:var(--text-1);
  font-size:15.5px;
  font-weight:600;
  line-height:1.6;
  transition:background var(--ease),color var(--ease);
}
.qa-question:hover{background:rgba(255,255,255,.04);color:#fff;}
.qa-icon{
  flex:0 0 auto;
  width:26px;
  height:26px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:8px;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:16px;
  font-weight:600;
  line-height:1;
  transition:transform var(--ease),background var(--ease);
}
.qa-item.is-open .qa-icon{transform:rotate(45deg);background:rgba(31,224,181,.22);}
.qa-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height 260ms cubic-bezier(.2,.7,.3,1);
}
.qa-item.is-open .qa-answer{max-height:420px;}
.qa-answer p{
  padding:0 24px 20px;
  margin:0;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
}
.timeline-card{
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  padding:24px;
  -webkit-backdrop-filter:blur(18px) saturate(130%);
  backdrop-filter:blur(18px) saturate(130%);
  position:sticky;
  top:100px;
}
.timeline-card h3{font-size:17px;margin-bottom:6px;}
.timeline-card .tl-sub{font-size:13.5px;color:var(--text-3);margin-bottom:22px;}
.timeline{
  position:relative;
  padding-left:20px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:4px;
  top:6px;
  bottom:6px;
  width:1px;
  background:linear-gradient(180deg,var(--line-2),rgba(255,255,255,.06));
}
.tl-item{position:relative;padding-bottom:20px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";
  position:absolute;
  left:-20px;
  top:7px;
  width:9px;
  height:9px;
  border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 0 3px rgba(31,224,181,.14);
}
.tl-date{
  display:block;
  font-size:13px;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  margin-bottom:4px;
}
.tl-item p{margin:0;font-size:14px;line-height:1.7;color:var(--text-2);}
/* 支持渠道 */
.support-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.support-card{
  padding:28px 26px;
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.support-card:hover{border-color:var(--line-2);transform:translateY(-4px);box-shadow:var(--shadow-card-hover);}
.support-card .s-icon{
  width:44px;
  height:44px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:18px;
  margin-bottom:18px;
}
.support-card h3{font-size:17px;margin-bottom:10px;}
.support-card p{font-size:14.5px;color:var(--text-3);line-height:1.8;margin:0 0 16px;}
.support-card .meta{font-size:13px;color:var(--text-3);border-top:1px solid var(--line-1);padding-top:14px;}
/* CTA 条 */
.cta-band{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:36px 40px;
  background:
    linear-gradient(135deg,rgba(31,224,181,.10),rgba(255,255,255,.02) 60%),
    var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
}
.cta-band h2{font-size:clamp(21px,2.2vw,26px);margin-bottom:8px;}
.cta-band p{margin:0;font-size:15px;color:var(--text-3);}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto;}
/* 表单 */
.form-card{
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  padding:40px;
  -webkit-backdrop-filter:blur(18px) saturate(130%);
  backdrop-filter:blur(18px) saturate(130%);
}
.form-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px;
}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:13px;color:var(--text-3);font-weight:500;}
.field input,.field select,.field textarea{
  width:100%;
  min-height:46px;
  padding:11px 14px;
  background:rgba(255,255,255,.03);
  border:1px solid var(--line-1);
  border-radius:12px;
  color:var(--text-1);
  font-size:15px;
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.field textarea{min-height:132px;resize:vertical;line-height:1.8;}
.field input::placeholder,.field textarea::placeholder{color:rgba(134,149,172,.8);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--line-2);
  background:rgba(255,255,255,.05);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07),0 0 0 2px rgba(31,224,181,.18);
}
.field select{appearance:none;-webkit-appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--text-3) 50%),linear-gradient(135deg,var(--text-3) 50%,transparent 50%);background-position:calc(100% - 20px) 20px,calc(100% - 15px) 20px;background-size:5px 5px,5px 5px;background-repeat:no-repeat;}
.form-note{
  font-size:13px;
  color:var(--accent);
  margin:16px 0 0;
}
.form-actions{
  grid-column:1 / -1;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:16px;
  margin-top:4px;
}
.form-actions .hint{font-size:13px;color:var(--text-3);}
/* 页脚 */
.site-footer{
  border-top:1px solid var(--line-1);
  background:linear-gradient(180deg,rgba(12,20,36,.6),rgba(4,7,15,.98));
  padding:72px 0 28px;
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:32px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14.5px;color:var(--text-3);line-height:1.8;margin-bottom:16px;max-width:300px;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.footer-tags span{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 10px;
  border-radius:8px;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:12.5px;
}
.footer-col h4{
  font-size:15px;
  color:var(--text-1);
  margin-bottom:16px;
  font-weight:600;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col li a,.footer-col li span{
  font-size:14px;
  color:var(--text-3);
  line-height:1.7;
}
.footer-col li a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid var(--line-1);
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px;
  font-size:13px;
  color:var(--text-3);
}
/* 响应式 */
@media (max-width:1199px){
  .nav-search{max-width:340px;}
  .nav-links{gap:16px;}
  .hero-facts{gap:12px 28px;}
}
@media (max-width:991px){
  .container{padding:0 24px;}
  .nav-links,.header-inner > .nav-search{display:none;}
  .icon-btn{display:inline-flex;}
  .header-inner{min-height:68px;gap:12px;}
  .section{padding:68px 0;}
  .checkup{grid-template-columns:1fr;gap:28px;}
  .qa-layout{grid-template-columns:1fr;}
  .timeline-card{position:static;margin-top:8px;}
  .support-grid{grid-template-columns:1fr 1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:30px 26px;}
  .form-card{padding:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px 24px;}
  .footer-brand{grid-column:1 / -1;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .page-hero{padding:28px 0 44px;}
  .hero-lead{font-size:15.5px;}
  .section{padding:56px 0;}
  .form-grid{grid-template-columns:1fr;}
  .support-grid{grid-template-columns:1fr;}
  .qa-question{padding:14px 18px;font-size:15px;}
  .qa-answer p{padding:0 18px 18px;font-size:14.5px;}
  .timeline-card{padding:20px;}
  .section-head{margin-bottom:28px;}
  .footer-bottom{flex-direction:column;}
  .step{padding:16px;}
}
@media (max-width:479px){
  .brand-text{font-size:16px;}
  .hero-facts{flex-direction:column;gap:8px;}
  .btn{width:100%;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .form-actions .btn{width:100%;}
  .step{gap:12px;}
  .footer-grid{grid-template-columns:1fr;}
  .tl-item{padding-bottom:16px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
  .media:hover img,.step:hover,.support-card:hover{transform:none;}
}