/* roulang page: index */
:root{
  --bg-base:#070B14;
  --bg-deep:#0A1020;
  --bg-panel:#0E1728;
  --glass:rgba(20,34,54,0.55);
  --line:rgba(255,255,255,0.08);
  --line-soft:rgba(110,205,255,0.14);
  --brand:#26E0C8;
  --brand-deep:#0FA38F;
  --accent:#FFB13C;
  --ink-1:#EAF2FF;
  --ink-2:#93A6C4;
  --ink-3:#5F7290;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --shadow-card:0 24px 60px -24px rgba(0,0,0,0.7);
  --mono:ui-monospace,"DIN Alternate","SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--ink-1);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}
.glass{
  background:var(--glass);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line-soft);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,0.06);
}
.panel{
  background:var(--bg-panel);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:inset 0 1px 0 rgba(255,255,255,0.05);
}

/* ===== 导航 ===== */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(7,11,20,0.72);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px}
@media (min-width:768px){.nav{height:72px}}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-mark{position:relative;width:14px;height:14px;flex:none;border-radius:50%;background:var(--brand);box-shadow:0 0 14px rgba(38,224,200,0.9)}
.brand-mark::after{
  content:"";position:absolute;left:16px;top:50%;width:30px;height:2px;border-radius:2px;
  transform:translateY(-50%) rotate(-28deg);
  background:linear-gradient(90deg,rgba(38,224,200,0.95),rgba(38,224,200,0));
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;min-width:0}
.brand-name{font-size:17px;font-weight:700;letter-spacing:-0.01em;color:var(--ink-1)}
.brand-sub{font-size:11px;font-weight:600;color:var(--brand);letter-spacing:0.06em}
.nav-links{display:none;align-items:center;gap:4px}
.nav-links a{
  display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:999px;
  font-size:15px;color:var(--ink-2);
  transition:color .18s ease-out,background-color .18s ease-out;
}
.nav-links a:hover{color:var(--ink-1);background:rgba(255,255,255,0.05)}
.nav-links a.active{color:var(--brand);background:rgba(38,224,200,0.10)}
.nav-right{display:none;align-items:center;gap:12px}
.menu-btn{
  display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;
  border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,0.03);cursor:pointer;
  transition:border-color .18s ease-out,background-color .18s ease-out;
}
.menu-btn:hover{border-color:rgba(38,224,200,0.45);background:rgba(38,224,200,0.08)}
.menu-btn span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-1);position:relative}
.menu-btn span::before,.menu-btn span::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--ink-1)}
.menu-btn span::before{top:-6px}
.menu-btn span::after{top:6px}
@media (min-width:1024px){
  .nav-links{display:flex}
  .nav-right{display:flex}
  .menu-btn{display:none}
}
.drawer{
  position:fixed;inset:0;z-index:60;display:flex;flex-direction:column;
  padding:20px;background:rgba(7,11,20,0.96);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  opacity:0;visibility:hidden;
  transition:opacity .2s ease-out,visibility .2s ease-out;
}
.drawer.is-open{opacity:1;visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:56px;margin-bottom:8px}
.drawer-close{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:transparent;cursor:pointer;color:var(--ink-1);font-size:20px;line-height:1;
}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{
  display:flex;align-items:center;gap:14px;height:56px;
  border-bottom:1px solid var(--line);font-size:16px;color:var(--ink-1);
}
.drawer-nav a .num{font-family:var(--mono);font-size:12px;color:var(--brand)}
.drawer-nav a.active{color:var(--brand)}
.drawer-foot{margin-top:auto;padding-top:20px}
@media (min-width:1024px){.drawer{display:none}}

/* ===== 按钮 / 徽章 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out,border-color .18s ease-out,filter .18s ease-out;
}
.btn-primary{
  background:var(--brand);color:#04120F;
  box-shadow:0 0 0 1px rgba(38,224,200,0.5),0 12px 32px -10px rgba(38,224,200,0.55);
}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.08)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(38,224,200,0.35)}
.btn-primary[disabled]{filter:saturate(0.4);box-shadow:none;cursor:not-allowed}
.btn-ghost{background:transparent;border-color:rgba(38,224,200,0.45);color:var(--brand)}
.btn-ghost:hover{background:rgba(38,224,200,0.10);transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-block{width:100%}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:12px;font-weight:600;
  color:var(--brand);border:1px solid rgba(38,224,200,0.4);background:rgba(38,224,200,0.08);
}
.badge .dot{width:6px;height:6px;border-radius:50%;background:currentColor;flex:none}
.badge-warn{color:var(--accent);border-color:rgba(255,177,60,0.4);background:rgba(255,177,60,0.08)}
.badge-muted{color:var(--ink-3);border-color:rgba(255,255,255,0.14);background:transparent}

/* ===== 板块骨架 ===== */
.section{padding:72px 0;position:relative}
@media (min-width:1024px){.section{padding:96px 0}}
.section-alt{background:var(--bg-deep)}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;font-weight:600;color:var(--brand);letter-spacing:0.04em}
.eyebrow::before{content:"";width:24px;height:1px;background:var(--brand)}
.section-title{
  margin:14px 0 12px;
  font-size:clamp(1.7rem,3vw,2.4rem);line-height:1.25;font-weight:650;letter-spacing:-0.01em;
}
.section-title::before{
  content:"";display:inline-block;width:4px;height:0.9em;margin-right:12px;
  border-radius:2px;background:var(--brand);vertical-align:-0.08em;
}
.section-sub{font-size:15px;color:var(--ink-2);max-width:720px}
.section-head{margin-bottom:36px}

/* ===== Hero ===== */
.hero{position:relative;overflow:hidden;padding:56px 0 64px}
.hero::before{
  content:"";position:absolute;inset:0;z-index:0;
  background:url(/assets/images/backpic/back-2.webp) center/cover no-repeat;
  opacity:0.22;pointer-events:none;
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background:radial-gradient(900px 420px at 12% 0%,rgba(38,224,200,0.14),transparent 70%),
             linear-gradient(180deg,rgba(7,11,20,0.35),var(--bg-base) 92%);
}
.hero .container{position:relative;z-index:1}
.hero-grid{display:grid;gap:40px;align-items:center}
@media (min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr;gap:48px}}
.hero h1{
  margin:18px 0 18px;
  font-size:clamp(2.2rem,5vw,3.4rem);line-height:1.12;font-weight:700;letter-spacing:-0.02em;
}
.hero h1 .hl{color:var(--brand)}
.hero-sub{font-size:16px;color:var(--ink-2);max-width:540px;line-height:1.9}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-tags .badge{background:rgba(255,255,255,0.03);border-color:rgba(255,255,255,0.12);color:var(--ink-2)}
.hero-tags .badge .dot{background:var(--brand)}
.hero-visual{position:relative}
.hero-photo{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  border:1px solid var(--line-soft);box-shadow:var(--shadow-card);
  max-height:300px;
}
@media (min-width:1024px){.hero-photo{max-height:none}}
.hero-photo img{width:100%;height:100%;object-fit:cover;min-height:220px}
.hero-photo-mask{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,0.35),rgba(7,11,20,0.85));
}
.hero-photo-text{position:absolute;left:0;right:0;bottom:0;padding:22px}
.hero-photo-text p{margin-top:10px;font-size:14px;color:var(--ink-2);max-width:320px}
.float-card{
  margin-top:-38px;margin-left:auto;margin-right:16px;position:relative;width:min(300px,88%);
  padding:20px;border-radius:var(--r-md);
}
.float-top{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--ink-2)}
.float-num{display:block;margin-top:8px;font-family:var(--mono);font-size:2rem;font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:-0.02em}
.float-card p{font-size:12px;color:var(--ink-3);margin-top:6px}

/* ===== 指标看板 ===== */
.stats{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:768px){.stats{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.stats{grid-template-columns:repeat(4,1fr)}}
.stat-card{padding:24px;border-radius:var(--r-md)}
.stat-num{
  font-family:var(--mono);font-size:1.9rem;font-weight:700;line-height:1.1;
  font-variant-numeric:tabular-nums;letter-spacing:-0.02em;
}
.stat-num em{font-style:normal;font-size:0.95rem;color:var(--brand);margin-left:4px}
.stat-label{font-size:13px;color:var(--ink-2);margin-top:6px}
.stat-bar{height:3px;border-radius:3px;margin-top:16px;background:linear-gradient(90deg,var(--brand),rgba(38,224,200,0))}

/* ===== Bento 服务矩阵 ===== */
.bento{display:grid;gap:20px;grid-template-columns:1fr}
.bento-card{
  padding:24px;border-radius:var(--r-md);background:var(--bg-panel);
  border:1px solid var(--line);display:flex;flex-direction:column;gap:10px;
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
  position:relative;overflow:hidden;
}
.bento-card:hover{transform:translateY(-2px);border-color:rgba(110,205,255,0.28);box-shadow:var(--shadow-card)}
.bento-card h3{font-size:1.15rem;font-weight:600;line-height:1.5}
.bento-card p{font-size:14px;color:var(--ink-2);line-height:1.8}
.card-arrow{margin-top:auto;display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand)}
.card-arrow .arw{transition:transform .2s ease-out}
.bento-card:hover .card-arrow .arw{transform:translateX(4px)}
.ico{
  width:42px;height:42px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(38,224,200,0.32);background:rgba(38,224,200,0.07);color:var(--brand);flex:none;
}
.ico svg{width:22px;height:22px;stroke:currentColor;stroke-width:1.5;fill:none;stroke-linecap:round;stroke-linejoin:round}
.bento-cover{position:relative;margin:-24px -24px 18px;overflow:hidden}
.bento-cover img{width:100%;height:200px;object-fit:cover;transition:transform .25s ease-out}
.bento-card:hover .bento-cover img{transform:scale(1.03)}
.bento-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,11,20,0.1),rgba(14,23,40,0.95))}
@media (min-width:768px){
  .bento{grid-template-columns:repeat(12,1fr);gap:24px}
  .bento-card{grid-column:span 6}
  .bento-card.b-1{grid-column:span 12}
}
@media (min-width:1024px){
  .bento-card.b-1{grid-column:span 6;grid-row:span 2}
  .bento-card.b-2{grid-column:span 3}
  .bento-card.b-3{grid-column:span 3}
  .bento-card.b-4{grid-column:span 6}
  .bento-card.b-5{grid-column:span 6}
  .bento-card.b-6{grid-column:span 6}
}

/* ===== 结果对比 ===== */
.compare{display:grid;gap:20px}
@media (min-width:900px){.compare{grid-template-columns:1fr 1fr}}
.compare-card{padding:26px;border-radius:var(--r-lg);border:1px solid var(--line);background:var(--bg-panel)}
.compare-card.better{border-color:rgba(38,224,200,0.34);background:linear-gradient(180deg,rgba(38,224,200,0.07),rgba(14,23,40,1) 55%)}
.compare-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.compare-head h3{font-size:1.05rem;font-weight:600}
.cmp-row{margin-top:18px}
.cmp-label{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:14px;color:var(--ink-2)}
.cmp-label b{font-family:var(--mono);font-size:13px;font-weight:700;color:var(--ink-1);font-variant-numeric:tabular-nums}
.cmp-bar{height:6px;border-radius:6px;background:rgba(255,255,255,0.06);margin:8px 0 6px;overflow:hidden}
.cmp-bar i{display:block;height:100%;border-radius:6px;background:var(--accent)}
.cmp-bar.ok i{background:var(--brand)}
.cmp-note{font-size:13px;color:var(--ink-3)}

/* ===== 最新信息 ===== */
.posts{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:768px){.posts{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.posts{grid-template-columns:repeat(3,1fr);gap:24px}}
.post-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--bg-panel);border:1px solid var(--line);border-radius:var(--r-md);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.post-card:hover{transform:translateY(-2px);border-color:rgba(110,205,255,0.28);box-shadow:var(--shadow-card)}
.post-cover{aspect-ratio:16/9;overflow:hidden;background:var(--bg-deep)}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease-out}
.post-card:hover .post-cover img{transform:scale(1.03)}
.post-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-title{
  font-size:1.03rem;font-weight:600;line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-excerpt{
  font-size:14px;color:var(--ink-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  margin-top:auto;padding-top:12px;font-size:13px;color:var(--ink-3);
  font-variant-numeric:tabular-nums;font-family:var(--mono);
}
.post-more{color:var(--brand);font-weight:600;font-family:inherit}
.empty{
  border:1px dashed rgba(255,255,255,0.16);border-radius:var(--r-lg);
  padding:48px 24px;text-align:center;color:var(--ink-2);
  display:flex;flex-direction:column;align-items:center;gap:14px;
}
.empty svg{width:34px;height:34px;stroke:var(--brand);stroke-width:1.5;fill:none;stroke-linecap:round;stroke-linejoin:round}

/* ===== FAQ ===== */
.faq{max-width:860px;margin:0 auto;display:grid;gap:12px}
.faq details{
  background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line-soft);border-radius:var(--r-md);padding:0 20px;
  transition:border-color .18s ease-out;
}
.faq details[open]{border-color:rgba(38,224,200,0.32)}
.faq summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 0;font-size:16px;font-weight:600;line-height:1.6;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary .plus{
  flex:none;width:26px;height:26px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(38,224,200,0.35);color:var(--brand);font-size:15px;font-weight:700;
  transition:transform .2s ease-out,background-color .2s ease-out;
}
.faq summary .plus::before{content:"+"}
.faq details[open] summary .plus{transform:rotate(180deg);background:rgba(38,224,200,0.12)}
.faq details[open] summary .plus::before{content:"−"}
.faq p{margin:0 0 20px;font-size:15px;line-height:1.8;color:var(--ink-2)}

/* ===== 表单 ===== */
.form-shell{border-radius:var(--r-lg);overflow:hidden}
.form-grid{display:grid;gap:0}
@media (min-width:1024px){.form-grid{grid-template-columns:4fr 8fr}}
.form-left{padding:28px;border-bottom:1px solid var(--line-soft)}
@media (min-width:1024px){.form-left{border-bottom:none;border-right:1px solid var(--line-soft);padding:32px}}
.form-left h2{font-size:clamp(1.4rem,2.4vw,1.8rem);line-height:1.35;font-weight:650;margin:12px 0 16px}
.form-points{display:grid;gap:12px;margin:20px 0}
.form-points li{display:flex;gap:10px;font-size:14px;color:var(--ink-2);line-height:1.7}
.form-points .tick{
  flex:none;width:20px;height:20px;border-radius:50%;margin-top:3px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(38,224,200,0.12);border:1px solid rgba(38,224,200,0.4);color:var(--brand);
  font-size:11px;font-weight:700;
}
.form-right{padding:28px}
@media (min-width:1024px){.form-right{padding:32px}}
.form-row{display:grid;gap:16px}
@media (min-width:768px){.form-row{grid-template-columns:1fr 1fr}}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.field label{font-size:14px;font-weight:600;color:var(--ink-2)}
.field input,.field select,.field textarea{
  width:100%;background:var(--bg-deep);
  border:1px solid rgba(255,255,255,0.12);border-radius:var(--r-sm);
  padding:13px 14px;font-size:15px;color:var(--ink-1);
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.field textarea{min-height:104px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 2px rgba(38,224,200,0.18);
}
.field.invalid input,.field.invalid select,.field.invalid textarea{border-color:var(--accent)}
.field-error{font-size:13px;color:var(--accent);margin-top:-6px;margin-bottom:14px;display:none}
.field-error.show{display:block}
.checkrow{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--ink-2);margin:6px 0 20px;line-height:1.7}
.checkrow input{width:16px;height:16px;margin-top:3px;accent-color:var(--brand);flex:none}
.checkrow a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
@media (max-width:767px){.form-right .btn-block{position:sticky;bottom:12px}}

/* ===== CTA 条 ===== */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  border:1px solid var(--line-soft);
  background:linear-gradient(90deg,rgba(38,224,200,0.14),rgba(38,224,200,0) 62%),var(--bg-panel);
  padding:32px;display:grid;gap:22px;
}
@media (min-width:768px){.cta-band{grid-template-columns:1fr auto;align-items:center;padding:40px}}
.cta-band h2{font-size:clamp(1.35rem,2.6vw,1.9rem);line-height:1.35;font-weight:650}
.cta-band p{font-size:14px;color:var(--ink-2);margin-top:10px;max-width:640px}

/* ===== 页脚 ===== */
.site-footer{background:var(--bg-deep);border-top:1px solid var(--line);padding:56px 0 0;margin-top:72px}
@media (min-width:1024px){.site-footer{padding-top:72px;margin-top:96px}}
.footer-grid{display:grid;gap:36px}
@media (min-width:768px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}}
.footer-title{font-size:13px;font-weight:700;color:var(--ink-1);letter-spacing:0.04em;margin-bottom:14px}
.footer-desc{font-size:14px;color:var(--ink-2);line-height:1.8;margin:16px 0 18px;max-width:320px}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14px;color:var(--ink-2);transition:color .18s ease-out,box-shadow .18s ease-out;width:fit-content}
.footer-links a:hover{color:var(--brand);box-shadow:0 1px 0 rgba(38,224,200,0.6)}
.footer-list{display:grid;gap:10px;font-size:14px;color:var(--ink-2)}
.footer-list li{display:flex;gap:8px;line-height:1.7}
.footer-list .fl-dot{flex:none;width:5px;height:5px;border-radius:50%;background:var(--brand);margin-top:11px}
.footer-mail{font-size:14px;color:var(--brand);text-decoration:underline;text-underline-offset:3px;width:fit-content}
.footer-bottom{
  margin-top:44px;border-top:1px solid var(--line);padding:20px 0;
  display:flex;flex-wrap:wrap;gap:10px 20px;justify-content:space-between;
  font-size:13px;color:var(--ink-3);
}

/* roulang page: category1 */
:root{
  --bg-base:#070B14;
  --bg-deep:#0A1020;
  --bg-panel:#0E1728;
  --glass:rgba(20,34,54,.55);
  --brand:#26E0C8;
  --brand-deep:#0FA38F;
  --accent:#FFB13C;
  --ink-1:#EAF2FF;
  --ink-2:#93A6C4;
  --ink-3:#5F7290;
  --line:rgba(255,255,255,.08);
  --line-brand:rgba(110,205,255,.14);
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --shadow:0 24px 60px -24px rgba(0,0,0,.7);
  --inset:inset 0 1px 0 rgba(255,255,255,.06);
  --container:1240px;
  --mono:ui-monospace,"DIN Alternate","SF Mono",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--ink-1);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease-out,border-color .2s ease-out,background-color .2s ease-out;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
}
@media(min-width:1024px){
  .container{padding:0 32px;}
}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(7,11,20,.72);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav{
  height:64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
@media(min-width:1024px){
  .nav{height:72px;}
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:16px;height:16px;
  border-radius:50%;
  background:radial-gradient(circle at 32% 32%,#8BFFF0,var(--brand) 55%,var(--brand-deep));
  box-shadow:0 0 14px rgba(38,224,200,.75);
  position:relative;
  flex-shrink:0;
}
.brand-mark::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  width:30px;height:2px;
  background:linear-gradient(90deg,var(--brand),transparent);
  transform:translate(-4px,-50%) rotate(-38deg);
  transform-origin:left center;
  opacity:.85;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{
  font-size:17px;
  font-weight:700;
  letter-spacing:.02em;
  color:var(--ink-1);
}
.brand-sub{
  font-size:11px;
  color:var(--ink-3);
  letter-spacing:.06em;
}
.nav-links{
  display:none;
  align-items:center;
  gap:6px;
}
@media(min-width:1024px){
  .nav-links{display:flex;}
}
.nav-links a{
  font-size:14px;
  color:var(--ink-2);
  padding:8px 14px;
  border-radius:999px;
  border:1px solid transparent;
}
.nav-links a:hover{
  color:var(--ink-1);
  background:rgba(38,224,200,.08);
}
.nav-links a.active{
  color:var(--brand);
  border-color:rgba(38,224,200,.4);
  background:rgba(38,224,200,.09);
}
.nav-right{
  display:none;
  align-items:center;
  gap:12px;
}
@media(min-width:1024px){
  .nav-right{display:flex;}
}
.menu-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(20,34,54,.5);
}
@media(min-width:1024px){
  .menu-btn{display:none;}
}
.menu-btn span{
  position:relative;
  width:18px;height:2px;
  background:var(--ink-1);
  border-radius:2px;
  display:block;
}
.menu-btn span::before,.menu-btn span::after{
  content:"";
  position:absolute;left:0;
  width:18px;height:2px;
  background:var(--ink-1);
  border-radius:2px;
}
.menu-btn span::before{top:-6px;}
.menu-btn span::after{top:6px;}

/* 移动端抽屉 */
.drawer{
  position:fixed;
  inset:0;
  z-index:120;
  background:rgba(7,11,20,.94);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  padding:20px;
  display:flex;
  flex-direction:column;
  opacity:0;
  visibility:hidden;
  transform:translateY(-10px);
  transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s;
}
.drawer.open{opacity:1;visibility:visible;transform:translateY(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  font-size:20px;
  color:var(--ink-2);
}
.drawer-nav a{
  display:flex;
  align-items:center;
  gap:14px;
  height:56px;
  padding:0 14px;
  border-bottom:1px solid var(--line);
  color:var(--ink-2);
  font-size:15px;
}
.drawer-nav a .idx{
  font-family:var(--mono);
  font-size:12px;
  color:var(--brand);
  min-width:24px;
}
.drawer-nav a.active{color:var(--brand);}
.drawer-cta{margin-top:auto;padding-top:20px;}
.drawer-cta .btn{width:100%;justify-content:center;}

/* ============ 按钮与徽章 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out,color .18s ease-out;
  white-space:nowrap;
}
.btn-sm{height:38px;padding:0 18px;font-size:13px;}
.btn-primary{
  background:var(--brand);
  color:#04120F;
  box-shadow:0 0 0 1px rgba(38,224,200,.5),0 12px 32px -10px rgba(38,224,200,.55);
}
.btn-primary:hover{
  filter:brightness(1.08);
  transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(38,224,200,.65),0 16px 38px -10px rgba(38,224,200,.65);
}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(38,224,200,.4),0 6px 18px -10px rgba(38,224,200,.5);}
.btn-ghost{
  background:transparent;
  color:var(--brand);
  border:1px solid rgba(38,224,200,.45);
}
.btn-ghost:hover{background:rgba(38,224,200,.10);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}

.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  line-height:1.6;
  border:1px solid rgba(38,224,200,.45);
  color:var(--brand);
  background:rgba(38,224,200,.08);
  white-space:nowrap;
}
.badge .dot{
  width:6px;height:6px;
  border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 8px rgba(38,224,200,.9);
  flex-shrink:0;
}
.badge-warn{
  border-color:rgba(255,177,60,.45);
  color:var(--accent);
  background:rgba(255,177,60,.09);
}
.badge-warn .dot{background:var(--accent);box-shadow:0 0 8px rgba(255,177,60,.9);}
.badge-neutral{
  border-color:rgba(95,114,144,.5);
  color:var(--ink-2);
  background:rgba(95,114,144,.12);
}
.badge-neutral .dot{background:var(--ink-3);box-shadow:none;}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  padding:56px 0 64px;
  overflow:hidden;
  background:var(--bg-deep);
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  opacity:.18;
  filter:saturate(.85);
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.55) 0%,rgba(7,11,20,.88) 62%,var(--bg-deep) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--ink-3);
  margin-bottom:22px;
}
.breadcrumb .sep{color:rgba(95,114,144,.6);}
.breadcrumb .current{color:var(--ink-2);}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.12em;
  color:var(--brand);
  margin-bottom:18px;
}
.hero-eyebrow::before{
  content:"";
  width:24px;height:1px;
  background:var(--brand);
}
.page-hero h1{
  font-size:clamp(2.2rem,5vw,3.4rem);
  line-height:1.12;
  letter-spacing:-.02em;
  font-weight:700;
  max-width:820px;
}
.page-hero h1 em{
  font-style:normal;
  color:var(--brand);
}
.hero-lead{
  margin-top:20px;
  max-width:720px;
  font-size:16px;
  color:var(--ink-2);
}
.hero-meta{
  margin-top:28px;
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}

/* ============ 通用板块 ============ */
section{position:relative;}
.section{padding:72px 0;}
@media(min-width:1024px){
  .section{padding:96px 0;}
}
.section-deep{background:var(--bg-deep);}
.section-head{max-width:720px;margin-bottom:40px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.12em;
  color:var(--brand);
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:24px;height:1px;background:var(--brand);}
.section-head h2{
  font-size:clamp(1.7rem,3vw,2.4rem);
  line-height:1.25;
  font-weight:650;
  letter-spacing:-.01em;
}
.section-head p{
  margin-top:14px;
  font-size:15px;
  color:var(--ink-2);
}

/* ============ 步骤流 ============ */
.steps-layout{
  display:grid;
  grid-template-columns:1fr;
  gap:36px;
}
@media(min-width:1024px){
  .steps-layout{grid-template-columns:1.55fr 1fr;gap:48px;align-items:start;}
}
.timeline{
  position:relative;
  padding-left:36px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:9px;top:12px;bottom:12px;
  width:1px;
  background:linear-gradient(180deg,rgba(38,224,200,.6),rgba(38,224,200,.08));
}
.timeline-item{
  position:relative;
  padding-bottom:28px;
}
.timeline-item:last-child{padding-bottom:0;}
.timeline-node{
  position:absolute;
  left:-36px;
  top:22px;
  width:19px;height:19px;
  border-radius:50%;
  background:var(--bg-base);
  border:1px solid rgba(38,224,200,.55);
  display:flex;
  align-items:center;
  justify-content:center;
}
.timeline-node::after{
  content:"";
  width:7px;height:7px;
  border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 10px rgba(38,224,200,.9);
}
.timeline-card{
  background:var(--bg-panel);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:24px;
  box-shadow:var(--shadow),var(--inset);
  transition:border-color .2s ease-out,transform .2s ease-out;
}
.timeline-card:hover{
  border-color:rgba(110,205,255,.28);
  transform:translateY(-2px);
}
.timeline-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  margin-bottom:12px;
}
.timeline-top h3{
  font-size:1.16rem;
  font-weight:600;
  color:var(--ink-1);
}
.timeline-card p{
  font-size:15px;
  color:var(--ink-2);
  margin-bottom:8px;
}
.timeline-card p:last-child{margin-bottom:0;}
.mini-badges{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:16px;
}
.mini-badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  color:var(--ink-2);
  padding:3px 10px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.02);
}
.mini-badge b{
  font-family:var(--mono);
  font-weight:600;
  color:var(--brand);
}

/* 侧栏状态卡 */
.glass-card{
  background:var(--glass);
  border:1px solid var(--line-brand);
  border-radius:var(--r-lg);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow),var(--inset);
}
.status-card{padding:0;overflow:hidden;}
.status-figure{position:relative;}
.status-figure img{
  width:100%;
  height:196px;
  object-fit:cover;
  border-radius:var(--r-lg) var(--r-lg) 0 0;
}
.status-figure::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.15),rgba(7,11,20,.82));
  border-radius:var(--r-lg) var(--r-lg) 0 0;
}
.status-figure .badge{
  position:absolute;
  left:16px;bottom:14px;
  z-index:2;
}
.status-body{padding:22px 24px 26px;}
.status-body h3{
  font-size:1.05rem;
  font-weight:600;
  margin-bottom:6px;
}
.status-body > p{
  font-size:14px;
  color:var(--ink-2);
  margin-bottom:18px;
}
.meter-list{display:flex;flex-direction:column;gap:16px;}
.meter-row{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--ink-2);
}
.meter-row b{
  font-family:var(--mono);
  font-size:17px;
  color:var(--ink-1);
  font-weight:600;
  font-variant-numeric:tabular-nums;
}
.meter-bar{
  height:5px;
  border-radius:999px;
  background:rgba(255,255,255,.06);
  margin-top:8px;
  overflow:hidden;
}
.meter-bar i{
  display:block;
  height:100%;
  border-radius:999px;
  background:linear-gradient(90deg,var(--brand),rgba(38,224,200,0));
}
.meter-bar.amber i{background:linear-gradient(90deg,var(--accent),rgba(255,177,60,0));}
.status-note{
  margin-top:22px;
  padding-top:18px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--ink-3);
}

/* ============ 图文横卡 ============ */
.media-list{display:flex;flex-direction:column;gap:24px;}
.media-row{
  display:grid;
  grid-template-columns:1fr;
  gap:0;
  background:var(--bg-panel);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--shadow),var(--inset);
  transition:border-color .2s ease-out,transform .2s ease-out;
}
.media-row:hover{border-color:rgba(110,205,255,.28);transform:translateY(-2px);}
@media(min-width:768px){
  .media-row{grid-template-columns:300px 1fr;}
  .media-row.reverse .media-figure{order:2;}
}
.media-figure{position:relative;overflow:hidden;min-height:180px;}
.media-figure img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .22s ease-out;
}
.media-row:hover .media-figure img{transform:scale(1.03);}
.media-figure .tag{
  position:absolute;
  top:14px;left:14px;
  font-size:12px;
  font-weight:600;
  padding:4px 12px;
  border-radius:999px;
  color:#04120F;
  background:var(--brand);
}
.media-text{padding:24px;}
.media-text h3{
  font-size:1.16rem;
  font-weight:600;
  margin-bottom:10px;
}
.media-text p{
  font-size:15px;
  color:var(--ink-2);
  margin-bottom:10px;
}
.media-text .link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:8px;
  font-size:13px;
  font-weight:600;
  color:var(--brand);
}
.media-text .link-arrow span.arw{
  transition:transform .18s ease-out;
}
.media-text .link-arrow:hover span.arw{transform:translateX(4px);}

/* ============ 提示条 ============ */
.notice-strip{
  display:grid;
  grid-template-columns:1fr;
  gap:18px;
  padding:24px;
  border-radius:var(--r-lg);
  border:1px solid rgba(255,177,60,.28);
  background:rgba(255,177,60,.06);
}
@media(min-width:768px){
  .notice-strip{grid-template-columns:auto 1fr;align-items:center;gap:22px;}
}
.notice-icon{
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid rgba(255,177,60,.45);
  display:flex;align-items:center;justify-content:center;
  color:var(--accent);
  font-weight:700;
  font-family:var(--mono);
  font-size:18px;
}
.notice-strip h3{
  font-size:1rem;
  font-weight:600;
  color:var(--accent);
  margin-bottom:6px;
}
.notice-strip p{font-size:14px;color:var(--ink-2);}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{
  background:var(--glass);
  border:1px solid var(--line-brand);
  border-radius:var(--r-md);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .2s ease-out;
}
.faq-item[open]{border-color:rgba(38,224,200,.4);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 22px;
  font-size:16px;
  font-weight:600;
  color:var(--ink-1);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  font-size:20px;
  line-height:1;
  color:var(--brand);
  transition:transform .2s ease-out;
  flex-shrink:0;
}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg);}
.faq-item .faq-body{
  padding:0 22px 20px;
  font-size:15px;
  color:var(--ink-2);
}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  border-radius:var(--r-lg);
  border:1px solid var(--line-brand);
  background:
    linear-gradient(90deg,rgba(38,224,200,.14),rgba(38,224,200,0) 62%),
    var(--bg-panel);
  padding:32px 24px;
  display:grid;
  grid-template-columns:1fr;
  gap:22px;
  align-items:center;
  overflow:hidden;
}
@media(min-width:768px){
  .cta-band{grid-template-columns:1fr auto;padding:36px 40px;}
}
.cta-band h2{
  font-size:clamp(1.4rem,2.4vw,1.9rem);
  line-height:1.3;
  font-weight:650;
  margin-bottom:10px;
}
.cta-band p{font-size:15px;color:var(--ink-2);}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg-deep);
  border-top:1px solid var(--line);
  padding:56px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:36px;
  padding-bottom:44px;
}
@media(min-width:768px){
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media(min-width:1024px){
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
}
.footer-desc{
  margin-top:16px;
  font-size:14px;
  color:var(--ink-2);
  max-width:340px;
}
.footer-badges{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:18px;
}
.footer-title{
  font-size:14px;
  font-weight:600;
  color:var(--ink-1);
  margin-bottom:16px;
  letter-spacing:.02em;
}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{
  font-size:14px;
  color:var(--ink-2);
  border-bottom:1px solid transparent;
  align-self:flex-start;
  transition:color .2s ease-out,border-color .2s ease-out,transform .2s ease-out;
}
.footer-links a:hover{
  color:var(--brand);
  border-bottom-color:var(--brand);
  transform:translateY(-1px);
}
.footer-list{display:flex;flex-direction:column;gap:12px;}
.footer-list li{
  display:flex;
  gap:10px;
  font-size:14px;
  color:var(--ink-2);
  line-height:1.7;
}
.fl-dot{
  width:5px;height:5px;
  border-radius:50%;
  background:var(--brand);
  margin-top:11px;
  flex-shrink:0;
  opacity:.8;
}
.footer-mail{
  font-size:14px;
  color:var(--brand);
  border-bottom:1px solid rgba(38,224,200,.4);
}
.footer-mail:hover{border-bottom-color:var(--brand);}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:20px 0 28px;
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  justify-content:space-between;
  font-size:13px;
  color:var(--ink-3);
}

/* 移动端小屏微调 */
@media(max-width:520px){
  .page-hero{padding:40px 0 48px;}
  .section{padding:56px 0;}
  .timeline{padding-left:30px;}
  .timeline-node{left:-30px;width:16px;height:16px;}
  .timeline::before{left:7px;}
  .timeline-card{padding:20px;}
  .media-text{padding:20px;}
  .cta-band{padding:24px 20px;}
  .btn{width:100%;}
  .cta-actions{width:100%;}
  .hero-meta .badge{font-size:11px;}
}

/* roulang page: article */
:root{
  --bg-base:#070B14;
  --bg-deep:#0A1020;
  --bg-panel:#0E1728;
  --glass:rgba(20,34,54,0.55);
  --glass-border:rgba(110,205,255,0.14);
  --brand:#26E0C8;
  --brand-deep:#0FA38F;
  --accent:#FFB13C;
  --ink-1:#EAF2FF;
  --ink-2:#93A6C4;
  --ink-3:#5F7290;
  --line:rgba(255,255,255,0.08);
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow-card:0 24px 60px -24px rgba(0,0,0,0.7);
  --font-sans:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,"DIN Alternate","SFMono-Regular",Menlo,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(circle at 12% 0%, rgba(38,224,200,0.09), transparent 30rem),
    radial-gradient(circle at 88% 18%, rgba(255,177,60,0.055), transparent 26rem),
    var(--bg-base);
  color:var(--ink-1);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit}
button{cursor:pointer}
::selection{background:rgba(38,224,200,0.28);color:#fff}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1240px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:1024px){.container{padding-left:32px;padding-right:32px}}

/* 导航 */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(7,11,20,0.76);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav{height:64px;display:flex;align-items:center;justify-content:space-between;gap:22px}
@media (min-width:1024px){.nav{height:72px}}
.brand{display:inline-flex;align-items:center;gap:11px;min-width:0}
.brand-mark{
  width:26px;height:26px;border-radius:50%;flex:0 0 auto;position:relative;
  background:radial-gradient(circle at 34% 30%,#dffffa 0 8%,var(--brand) 30%,var(--brand-deep) 68%,rgba(15,163,143,0.12) 100%);
  box-shadow:0 0 0 1px rgba(38,224,200,0.42),0 0 24px rgba(38,224,200,0.46);
}
.brand-mark::after{
  content:"";position:absolute;left:2px;top:12px;width:30px;height:5px;border-radius:99px;
  background:linear-gradient(90deg,transparent,rgba(38,224,200,0.92),transparent);
  transform:rotate(-34deg);filter:blur(.3px);
}
.brand-text{display:flex;flex-direction:column;line-height:1.08;min-width:0}
.brand-name{font-weight:750;letter-spacing:.01em;font-size:18px;color:var(--ink-1)}
.brand-sub{font-size:10px;color:var(--ink-3);letter-spacing:.08em;margin-top:4px;white-space:nowrap}
.nav-links{display:none;align-items:center;gap:30px;font-size:14px}
@media (min-width:1024px){.nav-links{display:flex}}
.nav-links a{color:var(--ink-2);position:relative;padding:8px 0;transition:color .18s ease-out}
.nav-links a::after{
  content:"";position:absolute;left:0;right:100%;bottom:1px;height:1px;
  background:var(--brand);transition:right .2s ease-out;opacity:.8;
}
.nav-links a:hover,.nav-links a.active{color:var(--brand)}
.nav-links a:hover::after,.nav-links a.active::after{right:0}
.nav-right{display:none;align-items:center;gap:14px;margin-left:auto}
@media (min-width:1024px){.nav-right{display:flex}}
.badge{
  display:inline-flex;align-items:center;gap:8px;border:1px solid rgba(38,224,200,0.38);
  color:var(--brand);background:rgba(38,224,200,0.055);border-radius:999px;
  padding:7px 12px;font-size:12px;font-weight:600;line-height:1;white-space:nowrap;
}
.badge-warn{color:var(--accent);border-color:rgba(255,177,60,0.42);background:rgba(255,177,60,0.06)}
.badge-neutral{color:var(--ink-3);border-color:rgba(147,166,196,0.35);background:rgba(147,166,196,0.06)}
.badge .dot{width:6px;height:6px;border-radius:50%;background:currentColor;box-shadow:0 0 12px currentColor;flex:0 0 auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-height:48px;padding:0 28px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:700;line-height:1;transition:transform .18s ease-out,background .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out,color .18s ease-out;
  white-space:nowrap;
}
.btn-sm{min-height:40px;padding:0 18px;font-size:13px}
.btn-primary{
  color:#04211E;background:var(--brand);
  box-shadow:0 0 0 1px rgba(38,224,200,0.5),0 12px 32px -10px rgba(38,224,200,0.55);
}
.btn-primary:hover{background:#42f2dc;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(38,224,200,0.36),0 6px 18px -10px rgba(38,224,200,0.4)}
.btn-secondary{color:var(--brand);border-color:rgba(38,224,200,0.45);background:transparent}
.btn-secondary:hover{background:rgba(38,224,200,0.10)}
.btn-ghost{color:var(--ink-2);border-color:var(--line);background:rgba(255,255,255,0.02)}
.btn-ghost:hover{color:var(--ink-1);border-color:rgba(38,224,200,0.34);background:rgba(38,224,200,0.055)}
.btn-block{width:100%}
.menu-btn{
  display:inline-flex;width:42px;height:42px;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,0.02);color:var(--ink-1);
}
@media (min-width:1024px){.menu-btn{display:none}}
.menu-btn span,.menu-btn span::before,.menu-btn span::after{
  display:block;width:18px;height:1.5px;background:currentColor;border-radius:9px;position:relative;
  transition:transform .2s ease-out,opacity .2s ease-out;
}
.menu-btn span::before,.menu-btn span::after{content:"";position:absolute;left:0}
.menu-btn span::before{top:-6px}
.menu-btn span::after{top:6px}
body.drawer-open .menu-btn span{background:transparent}
body.drawer-open .menu-btn span::before{transform:translateY(6px) rotate(45deg)}
body.drawer-open .menu-btn span::after{transform:translateY(-6px) rotate(-45deg)}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0;z-index:100;background:rgba(4,8,15,0.74);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  opacity:0;visibility:hidden;transition:opacity .2s ease-out,visibility .2s ease-out;
}
.drawer.is-open{opacity:1;visibility:visible}
.drawer-panel{
  position:absolute;top:0;right:0;width:min(92vw,400px);height:100%;
  background:linear-gradient(180deg,rgba(14,23,40,0.98),rgba(7,11,20,0.98));
  border-left:1px solid rgba(110,205,255,0.16);padding:18px 18px 22px;
  display:flex;flex-direction:column;transform:translateX(18px);
  transition:transform .2s ease-out;box-shadow:-30px 0 80px rgba(0,0,0,0.52);
}
.drawer.is-open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:14px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,0.03);color:var(--ink-1);font-size:20px;line-height:1}
.drawer-links{display:flex;flex-direction:column;gap:8px;padding:20px 0;overflow-y:auto}
.drawer-links a{
  min-height:56px;display:flex;align-items:center;gap:14px;padding:0 14px;border-radius:14px;
  color:var(--ink-2);border:1px solid transparent;transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.drawer-links a:hover,.drawer-links a.active{color:var(--brand);background:rgba(38,224,200,0.07);border-color:rgba(38,224,200,0.18)}
.drawer-links a span{font-family:var(--font-mono);font-size:11px;color:var(--ink-3);background:rgba(255,255,255,0.04);border:1px solid var(--line);border-radius:8px;padding:3px 7px}
.drawer-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);display:grid;gap:12px}
.drawer-foot .badge{justify-content:center}

/* 面包屑与文章头 */
.article-hero{position:relative;padding:42px 0 30px;overflow:hidden}
.article-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.18;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.8),transparent 88%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.8),transparent 88%);
}
.article-hero .container{position:relative;z-index:1}
.crumbs{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--ink-3);line-height:1.6}
.crumbs a{color:var(--ink-3);transition:color .18s ease-out}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{color:rgba(147,166,196,0.5)}
.crumbs .current{color:var(--ink-2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:min(100%,560px)}
.article-head{padding-top:34px;max-width:980px}
.article-head .badge{margin-bottom:20px}
.article-head h1{
  margin:0;font-size:clamp(2rem,4.6vw,3.35rem);line-height:1.18;letter-spacing:-.02em;
  font-weight:750;color:var(--ink-1);text-wrap:balance;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;margin-top:24px;padding-top:20px;
  border-top:1px solid var(--line);font-size:13px;color:var(--ink-3);
}
.article-meta strong{color:var(--ink-2);font-weight:600}
.article-meta .dot-sep{width:3px;height:3px;border-radius:50%;background:rgba(147,166,196,.5)}

/* 文章布局 */
.article-wrap{padding:26px 0 78px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:36px}
@media (min-width:1024px){.article-layout{grid-template-columns:minmax(0,780px) 300px;gap:52px;justify-content:space-between;align-items:start}}
.article-main{min-width:0}
.article-body{
  background:linear-gradient(180deg,rgba(14,23,40,0.72),rgba(10,16,32,0.58));
  border:1px solid var(--glass-border);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,0.06);
  padding:24px;overflow:hidden;
}
@media (min-width:768px){.article-body{padding:38px 44px}}
.article-content{font-size:17px;line-height:1.9;color:var(--ink-2);overflow-wrap:anywhere}
.article-content > *:first-child{margin-top:0}
.article-content > *:last-child{margin-bottom:0}
.article-content p{margin:0 0 20px}
.article-content h2{
  position:relative;margin:40px 0 18px;padding-left:16px;color:var(--ink-1);
  font-size:clamp(1.35rem,2.4vw,1.65rem);line-height:1.45;font-weight:700;letter-spacing:-.01em;
}
.article-content h2::before{
  content:"";position:absolute;left:0;top:.25em;bottom:.18em;width:4px;border-radius:99px;
  background:linear-gradient(180deg,var(--brand),rgba(38,224,200,0.25));
}
.article-content h3{margin:30px 0 12px;color:var(--ink-1);font-size:1.22rem;line-height:1.5;font-weight:650}
.article-content h4{margin:24px 0 10px;color:var(--ink-1);font-size:1.05rem;font-weight:650}
.article-content a{color:var(--brand);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px;text-decoration-color:rgba(38,224,200,.55)}
.article-content a:hover{filter:brightness(1.15)}
.article-content strong{color:var(--ink-1);font-weight:700}
.article-content ul,.article-content ol{margin:0 0 20px;padding-left:1.35em}
.article-content li{margin:8px 0;padding-left:.25em}
.article-content ul{list-style:none}
.article-content ul > li{position:relative}
.article-content ul > li::before{
  content:"";position:absolute;left:-1.15em;top:.78em;width:7px;height:7px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 10px rgba(38,224,200,.4);
}
.article-content ol li::marker{color:var(--brand);font-family:var(--font-mono)}
.article-content blockquote{
  margin:26px 0;padding:20px 22px;border-radius:16px;border:1px solid var(--glass-border);
  border-left:3px solid var(--brand);background:rgba(20,34,54,0.52);color:var(--ink-2);
}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content img{width:auto;max-width:100%;height:auto;margin:24px auto;border-radius:16px;border:1px solid var(--line)}
.article-content figure{margin:26px 0}
.article-content figcaption{margin-top:10px;text-align:center;font-size:13px;color:var(--ink-3)}
.article-content table{width:100%;border-collapse:collapse;margin:24px 0;font-size:14px;background:rgba(10,16,32,0.55);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.article-content th,.article-content td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}
.article-content th{background:var(--bg-panel);color:var(--ink-1);font-weight:650}
.article-content tr:last-child td{border-bottom:0}
.article-content pre{
  margin:24px 0;padding:18px;overflow-x:auto;border-radius:12px;border:1px solid var(--line);
  background:#060A12;color:#CFE6FF;font-family:var(--font-mono);font-size:13px;line-height:1.7;
}
.article-content code{font-family:var(--font-mono);font-size:.92em;color:#B9FFF5;background:rgba(38,224,200,0.08);border:1px solid rgba(38,224,200,0.12);padding:2px 5px;border-radius:5px}
.article-content pre code{padding:0;border:0;background:none;color:inherit}
.article-content hr{border:0;border-top:1px solid var(--line);margin:32px 0}

.article-end{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.empty-state{
  min-height:320px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;
  padding:36px 18px;border:1px dashed rgba(38,224,200,.32);border-radius:16px;background:rgba(10,16,32,.34);
}
.empty-state svg{width:48px;height:48px;color:var(--brand);margin-bottom:16px}
.empty-state h2{margin:0 0 8px;font-size:1.3rem;color:var(--ink-1)}
.empty-state p{margin:0 0 20px;max-width:440px;color:var(--ink-2);font-size:15px}

/* 侧栏 */
.article-sidebar{display:grid;gap:18px}
@media (max-width:1023px){.article-sidebar{grid-template-columns:1fr 1fr}}
@media (max-width:767px){.article-sidebar{grid-template-columns:1fr}}
.side-card{
  background:var(--glass);border:1px solid var(--glass-border);border-radius:18px;
  padding:22px;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,0.06);
}
.side-title{font-size:14px;font-weight:700;color:var(--ink-1);margin-bottom:14px;display:flex;align-items:center;gap:9px}
.side-title::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--brand)}
.toc{display:flex;flex-direction:column;gap:5px}
.toc-empty{margin:0;color:var(--ink-3);font-size:13px;line-height:1.7}
.toc-link{
  position:relative;display:block;padding:8px 10px 8px 14px;border-radius:9px;
  color:var(--ink-2);font-size:13px;line-height:1.55;transition:color .18s ease-out,background .18s ease-out;
}
.toc-link::before{
  content:"";position:absolute;left:4px;top:12px;bottom:12px;width:2px;border-radius:2px;
  background:transparent;transition:background .18s ease-out;
}
.toc-link:hover{color:var(--ink-1);background:rgba(255,255,255,0.035)}
.toc-link.active{color:var(--brand);background:rgba(38,224,200,0.075)}
.toc-link.active::before{background:var(--brand)}
.entry-card .entry-cover{margin:-6px -6px 18px;border-radius:14px;overflow:hidden;border:1px solid var(--line);background:var(--bg-deep)}
.entry-card .entry-cover img{width:100%;height:142px;object-fit:cover;transition:transform .2s ease-out}
.entry-card:hover .entry-cover img{transform:scale(1.03)}
.entry-card p{margin:0 0 14px;color:var(--ink-2);font-size:13px;line-height:1.75}
.entry-card .badge{margin-bottom:14px}

/* 相关阅读 */
.related-section{padding:0 0 72px}
.section-head{max-width:760px;margin-bottom:24px}
.eyebrow{display:inline-flex;align-items:center;gap:10px;color:var(--brand);font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase}
.eyebrow::before{content:"";width:24px;height:1px;background:var(--brand);opacity:.8}
.section-head h2{margin:12px 0 8px;font-size:clamp(1.6rem,2.8vw,2.15rem);line-height:1.28;color:var(--ink-1);letter-spacing:-.01em;font-weight:700}
.section-head p{margin:0;color:var(--ink-2);font-size:15px;line-height:1.8}
.related-grid{display:grid;grid-template-columns:1fr;gap:18px}
@media (min-width:768px){.related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.related-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.related-card{
  display:flex;flex-direction:column;gap:10px;padding:16px;border-radius:18px;
  background:rgba(14,23,40,.82);border:1px solid var(--line);box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,0.05);
  transition:transform .2s ease-out,border-color .2s ease-out,background .2s ease-out;
}
.related-card:hover{transform:translateY(-2px);border-color:rgba(38,224,200,.32);background:rgba(16,28,47,.92)}
.related-cover{border-radius:13px;overflow:hidden;border:1px solid var(--line);background:var(--bg-deep)}
.related-cover img{width:100%;height:168px;object-fit:cover;transition:transform .2s ease-out}
.related-card:hover .related-cover img{transform:scale(1.03)}
.related-card h3{margin:2px 0 0;font-size:17px;line-height:1.45;color:var(--ink-1);font-weight:650}
.related-card p{margin:0;color:var(--ink-2);font-size:13px;line-height:1.7}
.related-card .read-more{margin-top:auto;color:var(--brand);font-size:13px;font-weight:650;display:inline-flex;align-items:center;gap:6px}
.related-card .read-more svg{width:15px;height:15px;transition:transform .18s ease-out}
.related-card:hover .read-more svg{transform:translateX(3px)}

/* CTA 条 */
.cta-strip{padding:0 0 82px}
.cta-inner{
  display:flex;flex-direction:column;gap:20px;align-items:flex-start;justify-content:space-between;
  padding:28px;border-radius:22px;border:1px solid rgba(38,224,200,.24);
  background:
    linear-gradient(90deg,rgba(38,224,200,.11),rgba(255,177,60,.04) 52%,transparent),
    rgba(10,16,32,.72);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,0.06);
}
@media (min-width:768px){.cta-inner{flex-direction:row;align-items:center;padding:34px 38px}}
.cta-inner h2{margin:8px 0 6px;font-size:clamp(1.45rem,2.5vw,2rem);line-height:1.3;color:var(--ink-1);font-weight:700}
.cta-inner p{margin:0;color:var(--ink-2);font-size:14px;max-width:650px}

/* 页脚 */
.site-footer{background:var(--bg-deep);border-top:1px solid var(--line);padding:56px 0 24px;color:var(--ink-2)}
.footer-grid{display:grid;grid-template-columns:1fr;gap:30px}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 0.75fr 1fr 1fr;gap:36px}}
.footer-desc{margin:16px 0 0;font-size:13px;line-height:1.8;color:var(--ink-3);max-width:360px}
.footer-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.footer-title{font-size:14px;font-weight:700;color:var(--ink-1);margin:0 0 14px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:var(--ink-2);font-size:13px;transition:color .18s ease-out;width:fit-content;border-bottom:1px solid transparent}
.footer-links a:hover{color:var(--brand);border-bottom-color:rgba(38,224,200,.45)}
.footer-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-list li{display:flex;gap:9px;font-size:13px;line-height:1.7;color:var(--ink-3)}
.fl-dot{width:5px;height:5px;border-radius:50%;background:var(--brand);opacity:.8;flex:0 0 auto;margin-top:8px}
.footer-mail{color:var(--brand);font-size:13px;border-bottom:1px solid rgba(38,224,200,.35);padding-bottom:2px}
.footer-bottom{
  margin-top:36px;padding-top:18px;border-top:1px solid var(--line);
  display:flex;flex-direction:column;gap:8px;font-size:12px;color:var(--ink-3);
}
@media (min-width:768px){.footer-bottom{flex-direction:row;align-items:center;justify-content:space-between}}
@media (max-width:639px){
  .article-head h1{font-size:clamp(1.7rem,8vw,2.3rem)}
  .article-body{padding:20px}
  .article-content{font-size:16px}
  .article-meta{gap:8px 14px}
  .btn{width:100%}
  .article-end .btn,.cta-inner .btn{width:100%}
}

/* roulang page: category2 */
:root{
  --bg-base:#070B14;
  --bg-deep:#0A1020;
  --bg-panel:#0E1728;
  --glass:rgba(20,34,54,.55);
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(110,205,255,.14);
  --brand:#26E0C8;
  --brand-deep:#0FA38F;
  --accent:#FFB13C;
  --ink-1:#EAF2FF;
  --ink-2:#93A6C4;
  --ink-3:#5F7290;
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow-card:0 24px 60px -24px rgba(0,0,0,.7);
  --shadow-inner:inset 0 1px 0 rgba(255,255,255,.06);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--ink-1);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
p{margin:0}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4{margin:0;font-weight:700}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media(min-width:1024px){.container{padding:0 32px}}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

/* ---------- 品牌标识 ---------- */
.brand{display:inline-flex;align-items:center;gap:10px}
.brand-mark{position:relative;display:inline-block;width:26px;height:26px;flex:0 0 26px}
.brand-mark::before{
  content:"";position:absolute;left:3px;top:6px;width:12px;height:12px;border-radius:50%;
  background:var(--brand);box-shadow:0 0 12px rgba(38,224,200,.85);
}
.brand-mark::after{
  content:"";position:absolute;left:0;bottom:5px;width:26px;height:3px;border-radius:2px;
  background:linear-gradient(90deg,rgba(38,224,200,0),var(--brand));
  transform:rotate(-32deg);transform-origin:left center;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:17px;font-weight:700;letter-spacing:.02em;color:var(--ink-1)}
.brand-sub{font-size:11px;color:var(--ink-3);letter-spacing:.02em}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,11,20,.72);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;gap:16px;height:64px}
@media(min-width:768px){.nav{height:72px}}
.nav-links{display:none}
@media(min-width:1024px){
  .nav-links{display:flex;align-items:center;gap:4px;margin-left:16px}
}
.nav-links a{
  position:relative;padding:8px 14px;border-radius:999px;
  font-size:14.5px;color:var(--ink-2);
  transition:color .18s ease-out,background-color .18s ease-out;
  white-space:nowrap;
}
.nav-links a:hover{color:var(--ink-1);background:rgba(38,224,200,.08)}
.nav-links a.active{color:var(--brand);background:rgba(38,224,200,.1)}
.nav-links a.active::after{
  content:"";position:absolute;left:50%;bottom:1px;transform:translateX(-50%);
  width:16px;height:2px;border-radius:2px;background:var(--brand);
}
.nav-right{display:none;margin-left:auto;align-items:center;gap:12px}
@media(min-width:1024px){.nav-right{display:flex}}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:999px;
  border:1px solid rgba(38,224,200,.4);background:rgba(38,224,200,.06);
  color:var(--brand);font-size:12px;font-weight:600;white-space:nowrap;
}
.badge .dot{width:6px;height:6px;border-radius:50%;background:currentColor;box-shadow:0 0 8px currentColor}
.badge-warn{border-color:rgba(255,177,60,.45);background:rgba(255,177,60,.07);color:var(--accent)}
.badge-neutral{border-color:rgba(255,255,255,.14);background:rgba(255,255,255,.03);color:var(--ink-3)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out,color .18s ease-out,filter .18s ease-out;
}
.btn-primary{
  background:var(--brand);color:#04140F;
  box-shadow:0 0 0 1px rgba(38,224,200,.5),0 12px 32px -10px rgba(38,224,200,.55);
}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.08)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(38,224,200,.4),0 6px 18px -12px rgba(38,224,200,.45)}
.btn-ghost{background:transparent;border-color:rgba(38,224,200,.45);color:var(--brand)}
.btn-ghost:hover{background:rgba(38,224,200,.1);transform:translateY(-1px)}
.btn-sm{height:38px;padding:0 18px;font-size:13.5px}

/* ---------- 移动端菜单 ---------- */
.menu-btn{
  display:inline-flex;align-items:center;justify-content:center;
  margin-left:auto;width:40px;height:40px;flex:0 0 40px;
  border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.04);cursor:pointer;
  transition:background-color .18s ease-out,border-color .18s ease-out;
}
.menu-btn:hover{background:rgba(38,224,200,.1);border-color:rgba(38,224,200,.3)}
.menu-btn span{position:relative;display:block;width:16px;height:2px;border-radius:2px;background:var(--ink-1)}
.menu-btn span::before,.menu-btn span::after{
  content:"";position:absolute;left:0;width:16px;height:2px;border-radius:2px;background:var(--ink-1);
}
.menu-btn span::before{top:-5px}
.menu-btn span::after{top:5px}
@media(min-width:1024px){.menu-btn{display:none}}

.drawer{
  position:fixed;inset:0;z-index:80;
  background:rgba(7,11,20,.92);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  opacity:0;visibility:hidden;
  transition:opacity .2s ease-out,visibility .2s ease-out;
}
.drawer.open{opacity:1;visibility:visible}
.drawer-panel{
  position:absolute;inset:0;display:flex;flex-direction:column;padding:20px 20px 28px;
  transform:translateY(-10px);transition:transform .2s ease-out;
}
.drawer.open .drawer-panel{transform:translateY(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line)}
.drawer-close{
  width:38px;height:38px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);font-size:18px;line-height:1;cursor:pointer;color:var(--ink-2);
}
.drawer-links{display:flex;flex-direction:column;margin-top:16px}
.drawer-links a{
  display:flex;align-items:center;gap:12px;height:56px;padding:0 4px;
  border-bottom:1px solid var(--line);color:var(--ink-2);font-size:15.5px;
}
.drawer-links a .dnum{
  font-family:ui-monospace,"DIN Alternate",monospace;font-size:11px;color:var(--ink-3);
  border:1px solid var(--line);border-radius:6px;padding:1px 6px;
}
.drawer-links a.active{color:var(--brand)}
.drawer-links a.active .dnum{color:var(--brand);border-color:rgba(38,224,200,.4)}
.drawer-cta{margin-top:auto;width:100%}
@media(min-width:1024px){.drawer{display:none}}

/* ---------- 页面区块 ---------- */
.section{padding:64px 0}
@media(min-width:768px){.section{padding:96px 0}}
.section-alt{background:var(--bg-deep)}
.section-head{max-width:780px;margin-bottom:40px}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;font-weight:600;color:var(--brand);letter-spacing:.08em}
.eyebrow::before{content:"";width:24px;height:1px;background:var(--brand)}
.section h2{font-size:clamp(1.7rem,3vw,2.4rem);line-height:1.25;font-weight:650;margin:14px 0 12px;letter-spacing:-.01em}
.section-desc{color:var(--ink-2);font-size:15px;line-height:1.85;max-width:660px}

/* ---------- 首屏 ---------- */
.page-hero{position:relative;overflow:hidden;padding:56px 0 56px;background:var(--bg-base)}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  opacity:.22;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.55) 0%,rgba(7,11,20,.88) 62%,var(--bg-base) 100%);
}
.page-hero .container{position:relative;z-index:2}
.page-hero h1{
  font-size:clamp(2rem,4.4vw,3.2rem);
  line-height:1.16;letter-spacing:-.02em;font-weight:700;
  margin:18px 0 0;max-width:900px;
}
.hero-lead{margin-top:20px;max-width:720px;color:var(--ink-2);font-size:16px;line-height:1.9}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.hero-cover{
  margin-top:36px;position:relative;border-radius:var(--radius-md);overflow:hidden;
  border:1px solid var(--line-strong);box-shadow:var(--shadow-card);max-width:640px;
}
.hero-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* ---------- 对照矩阵 ---------- */
.matrix{
  border:1px solid var(--line-strong);border-radius:var(--radius-lg);
  background:var(--glass);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card),var(--shadow-inner);overflow:hidden;
}
.matrix-head{
  display:grid;grid-template-columns:1.1fr 1fr 1fr;gap:16px;
  padding:18px 24px;background:rgba(10,16,32,.65);border-bottom:1px solid var(--line);
  font-size:13px;font-weight:600;color:var(--ink-3);
}
.matrix-row{
  display:grid;grid-template-columns:1.1fr 1fr 1fr;gap:16px;align-items:start;
  padding:22px 24px;border-bottom:1px solid var(--line);
}
.matrix-row:last-child{border-bottom:0}
.matrix-name{font-size:15px;font-weight:600;color:var(--ink-1);line-height:1.7}
.matrix-name small{display:block;font-size:12.5px;font-weight:400;color:var(--ink-3);margin-top:4px}
.cell-tag{display:none;font-size:11.5px;color:var(--ink-3);margin-bottom:6px;letter-spacing:.04em}
.cell-text{font-size:14px;color:var(--ink-2);line-height:1.75;margin-top:8px}
.bar{height:6px;border-radius:999px;background:rgba(255,255,255,.07);overflow:hidden;margin:10px 0 0}
.bar i{display:block;height:100%;border-radius:999px}
.bar-weak i{background:linear-gradient(90deg,var(--accent),rgba(255,177,60,.18))}
.bar-strong i{background:linear-gradient(90deg,var(--brand),rgba(38,224,200,.18))}
.mark{display:inline-flex;align-items:center;gap:6px;padding:2px 10px;border-radius:999px;font-size:12px;font-weight:600}
.mark-warn{color:var(--accent);border:1px solid rgba(255,177,60,.45);background:rgba(255,177,60,.07)}
.mark-good{color:var(--brand);border:1px solid rgba(38,224,200,.4);background:rgba(38,224,200,.07)}
@media(max-width:899px){
  .matrix-head{display:none}
  .matrix-row{grid-template-columns:1fr;gap:16px;padding:20px}
  .cell-tag{display:block}
}

/* ---------- 图文区块 ---------- */
.split{display:grid;grid-template-columns:1fr;gap:32px;align-items:center}
@media(min-width:900px){
  .split-6{grid-template-columns:minmax(0,6fr) minmax(0,6fr);gap:48px}
  .split-7{grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:48px}
  .split-rev .figure{order:2}
}
.figure{
  position:relative;border-radius:var(--radius-md);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-card);
}
.figure img{width:100%;aspect-ratio:16/10;object-fit:cover}
.figure .fig-badge{position:absolute;left:16px;bottom:16px;background:rgba(7,11,20,.78);border-color:rgba(38,224,200,.45)}
.split h3{font-size:clamp(1.35rem,2.2vw,1.75rem);line-height:1.35;font-weight:650;margin:14px 0 14px;letter-spacing:-.01em}
.split p{color:var(--ink-2);font-size:15px;line-height:1.9}
.point-list{list-style:none;display:grid;gap:14px;margin-top:22px}
.point-list li{display:grid;grid-template-columns:24px 1fr;gap:12px;color:var(--ink-2);font-size:14.5px;line-height:1.8}
.tick{
  width:22px;height:22px;margin-top:4px;border-radius:50%;
  border:1px solid rgba(38,224,200,.5);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:11px;
}

/* ---------- 问答 ---------- */
.qa-list{
  border:1px solid var(--line);border-radius:var(--radius-lg);
  background:var(--bg-panel);box-shadow:var(--shadow-card),var(--shadow-inner);overflow:hidden;
}
.qa-item{padding:22px 24px;border-bottom:1px solid var(--line);display:grid;gap:8px}
.qa-item:last-child{border-bottom:0}
@media(min-width:768px){
  .qa-item{grid-template-columns:minmax(0,4fr) minmax(0,7fr);gap:32px;align-items:start}
}
.qa-q{font-size:15.5px;font-weight:600;color:var(--ink-1);line-height:1.7}
.qa-q::before{content:"问";display:inline-block;margin-right:8px;font-size:11px;color:var(--brand);border:1px solid rgba(38,224,200,.4);border-radius:5px;padding:0 5px;vertical-align:2px}
.qa-a{font-size:14.5px;color:var(--ink-2);line-height:1.85}

/* ---------- CTA 条 ---------- */
.cta-band{
  border:1px solid var(--line-strong);border-radius:var(--radius-lg);
  background:linear-gradient(90deg,rgba(38,224,200,.16) 0%,rgba(20,34,54,.55) 48%,rgba(20,34,54,.4) 100%);
  box-shadow:var(--shadow-card),var(--shadow-inner);
  padding:32px 24px;display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between;
}
@media(min-width:768px){.cta-band{padding:40px}}
.cta-band h2{font-size:clamp(1.4rem,2.4vw,1.9rem);line-height:1.35;font-weight:650;margin:10px 0 8px}
.cta-band p{color:var(--ink-2);font-size:14.5px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
@media(max-width:767px){.cta-actions{width:100%}.cta-actions .btn{flex:1 1 auto}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-deep);border-top:1px solid var(--line);padding-top:56px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:768px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1.25fr 1.2fr;gap:40px}}
.footer-desc{color:var(--ink-2);font-size:14px;line-height:1.85;margin:16px 0}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px}
.footer-title{font-size:14px;font-weight:600;color:var(--ink-1);margin-bottom:14px}
.footer-links{display:grid;gap:10px}
.footer-links a{
  color:var(--ink-2);font-size:14px;width:fit-content;
  border-bottom:1px solid transparent;
  transition:color .18s ease-out,border-color .18s ease-out;
}
.footer-links a:hover{color:var(--brand);border-bottom-color:rgba(38,224,200,.5)}
.footer-list{list-style:none;display:grid;gap:10px}
.footer-list li{display:flex;gap:8px;font-size:13.5px;color:var(--ink-2);line-height:1.75}
.fl-dot{width:5px;height:5px;flex:0 0 5px;margin-top:9px;border-radius:50%;background:var(--brand)}
.footer-mail{color:var(--brand);font-size:13.5px;border-bottom:1px solid rgba(38,224,200,.35);transition:color .18s ease-out}
.footer-mail:hover{color:#5CF2DF}
.footer-bottom{
  margin-top:40px;padding:20px 0 28px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between;
  font-size:12.5px;color:var(--ink-3);
}

/* roulang page: category3 */
:root{
    --bg-base:#070B14;
    --bg-deep:#0A1020;
    --bg-panel:#0E1728;
    --glass:rgba(20,34,54,0.55);
    --brand:#26E0C8;
    --brand-deep:#0FA38F;
    --accent:#FFB13C;
    --ink-1:#EAF2FF;
    --ink-2:#93A6C4;
    --ink-3:#5F7290;
    --line:rgba(255,255,255,0.08);
    --line-brand:rgba(110,205,255,0.14);
    --radius-lg:20px;
    --radius-md:16px;
    --radius-sm:12px;
    --shadow-card:0 24px 60px -24px rgba(0,0,0,0.7), inset 0 1px 0 rgba(255,255,255,0.06);
    --font-mono:ui-monospace,"DIN Alternate","SFMono-Regular",Menlo,Consolas,monospace;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg-base);
    color:var(--ink-1);
    font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4,p,figure{margin:0;}
  ul,ol{margin:0;padding:0;list-style:none;}
  img{display:block;max-width:100%;height:auto;}
  a{color:inherit;text-decoration:none;}
  button{font-family:inherit;cursor:pointer;background:none;border:none;color:inherit;}
  input,select,textarea{font-family:inherit;font-size:15px;}
  :focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

  .container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;}
  @media (min-width:1024px){ .container{padding:0 32px;} }

  /* ---------- Header / Nav ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(7,11,20,0.72);
    -webkit-backdrop-filter:blur(16px);
    backdrop-filter:blur(16px);
    border-bottom:1px solid var(--line);
  }
  .nav{display:flex;align-items:center;justify-content:space-between;gap:20px;height:64px;}
  @media (min-width:768px){ .nav{height:72px;} }
  .brand{display:inline-flex;align-items:center;gap:12px;}
  .brand-mark{
    position:relative;flex:none;width:14px;height:14px;border-radius:50%;
    background:var(--brand);
    box-shadow:0 0 0 4px rgba(38,224,200,0.14),0 0 18px rgba(38,224,200,0.7);
  }
  .brand-mark::after{
    content:"";position:absolute;left:11px;top:-6px;width:26px;height:2px;border-radius:2px;
    background:linear-gradient(90deg,var(--brand),rgba(38,224,200,0));
    transform:rotate(-32deg);
  }
  .brand-text{display:flex;flex-direction:column;line-height:1.15;}
  .brand-name{font-size:18px;font-weight:700;letter-spacing:-0.01em;color:var(--ink-1);}
  .brand-sub{font-size:11px;letter-spacing:0.08em;color:var(--ink-3);}
  .nav-links{display:none;align-items:center;gap:28px;}
  .nav-links a{
    position:relative;padding:6px 0;font-size:15px;color:var(--ink-2);
    transition:color 180ms ease-out;
  }
  .nav-links a:hover{color:var(--ink-1);}
  .nav-links a.active{color:var(--brand);}
  .nav-links a.active::after{
    content:"";position:absolute;left:0;right:0;bottom:-3px;height:2px;border-radius:2px;background:var(--brand);
  }
  .nav-right{display:none;align-items:center;gap:14px;}
  @media (min-width:1024px){
    .nav-links{display:flex;}
    .nav-right{display:flex;}
  }
  .menu-btn{
    display:inline-flex;align-items:center;justify-content:center;
    width:42px;height:42px;border-radius:12px;
    border:1px solid var(--line);background:rgba(20,34,54,0.5);
    transition:border-color 180ms ease-out,background 180ms ease-out;
  }
  .menu-btn:hover{border-color:rgba(38,224,200,0.5);background:rgba(38,224,200,0.1);}
  .menu-btn span{position:relative;display:block;width:16px;height:1.5px;background:var(--ink-1);border-radius:2px;}
  .menu-btn span::before,.menu-btn span::after{
    content:"";position:absolute;left:0;width:16px;height:1.5px;border-radius:2px;background:var(--ink-1);
  }
  .menu-btn span::before{top:-5px;}
  .menu-btn span::after{top:5px;}
  @media (min-width:1024px){ .menu-btn{display:none;} }

  /* ---------- Mobile drawer ---------- */
  .mobile-drawer{
    position:fixed;inset:0;z-index:90;
    display:flex;flex-direction:column;
    padding:18px 20px 24px;
    background:rgba(7,11,20,0.96);
    -webkit-backdrop-filter:blur(18px);
    backdrop-filter:blur(18px);
    opacity:0;pointer-events:none;transform:translateY(-10px);
    transition:opacity 200ms ease-out,transform 200ms ease-out;
  }
  .mobile-drawer.is-open{opacity:1;pointer-events:auto;transform:none;}
  .drawer-top{display:flex;align-items:center;justify-content:space-between;height:64px;}
  .drawer-close{
    width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
    display:inline-flex;align-items:center;justify-content:center;font-size:20px;color:var(--ink-2);
  }
  .drawer-close:hover{color:var(--brand);border-color:rgba(38,224,200,0.5);}
  .drawer-links{display:flex;flex-direction:column;margin-top:12px;}
  .drawer-links a{
    display:flex;align-items:center;gap:14px;height:56px;
    border-bottom:1px solid var(--line);font-size:16px;color:var(--ink-2);
  }
  .drawer-links a.active{color:var(--brand);}
  .drawer-index{
    font-family:var(--font-mono);font-size:12px;color:var(--ink-3);
    border:1px solid var(--line);border-radius:8px;padding:1px 7px;
  }
  .drawer-foot{margin-top:auto;padding-top:20px;}
  .drawer-foot .badge{margin-bottom:14px;}

  /* ---------- Badges & Buttons ---------- */
  .badge{
    display:inline-flex;align-items:center;gap:7px;
    padding:5px 12px;border-radius:999px;
    font-size:12px;font-weight:600;letter-spacing:0.01em;
    border:1px solid rgba(38,224,200,0.4);
    color:var(--brand);background:rgba(38,224,200,0.08);
  }
  .badge .dot{width:6px;height:6px;border-radius:50%;background:currentColor;flex:none;}
  .badge-warn{border-color:rgba(255,177,60,0.45);color:var(--accent);background:rgba(255,177,60,0.08);}
  .badge-mute{border-color:rgba(255,255,255,0.14);color:var(--ink-3);background:rgba(255,255,255,0.03);}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:999px;font-weight:600;font-size:15px;
    border:1px solid transparent;
    transition:transform 180ms ease-out,box-shadow 180ms ease-out,background 180ms ease-out,filter 180ms ease-out,border-color 180ms ease-out;
  }
  .btn-primary{
    height:48px;padding:0 28px;background:var(--brand);color:#04140F;
    box-shadow:0 0 0 1px rgba(38,224,200,0.5),0 12px 32px -10px rgba(38,224,200,0.55);
  }
  .btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);}
  .btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(38,224,200,0.4),0 6px 16px -8px rgba(38,224,200,0.4);}
  .btn-ghost{
    height:48px;padding:0 26px;background:transparent;
    border-color:rgba(38,224,200,0.45);color:var(--brand);
  }
  .btn-ghost:hover{background:rgba(38,224,200,0.10);transform:translateY(-1px);}
  .btn-ghost:active{transform:translateY(1px);}
  .btn-sm{height:38px;padding:0 18px;font-size:14px;}

  /* ---------- Sections ---------- */
  .section{padding:72px 0;}
  @media (min-width:1024px){ .section{padding:96px 0;} }
  .section--deep{background:var(--bg-deep);}
  .eyebrow{
    display:inline-flex;align-items:center;gap:10px;
    font-size:12px;font-weight:600;letter-spacing:0.08em;color:var(--brand);
  }
  .eyebrow::before{content:"";width:24px;height:2px;border-radius:2px;background:var(--brand);}
  .section-head{max-width:720px;margin-bottom:36px;}
  .section-head h2{
    margin-top:14px;font-size:clamp(1.7rem,3vw,2.4rem);font-weight:650;
    line-height:1.25;letter-spacing:-0.01em;
  }
  .section-head p{margin-top:12px;font-size:15px;color:var(--ink-2);}

  /* ---------- Hero ---------- */
  .page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);}
  .page-hero::before{
    content:"";position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-2.webp');
    background-size:cover;background-position:center;
    opacity:0.22;
  }
  .page-hero::after{
    content:"";position:absolute;inset:0;
    background:
      radial-gradient(120% 90% at 12% 0%,rgba(38,224,200,0.16),rgba(38,224,200,0) 58%),
      linear-gradient(180deg,rgba(7,11,20,0.58),var(--bg-base) 94%);
  }
  .hero-inner{position:relative;z-index:2;padding:56px 0 52px;}
  @media (min-width:1024px){ .hero-inner{padding:80px 0 68px;} }
  .page-hero h1{
    max-width:960px;margin-top:18px;
    font-size:clamp(2rem,5vw,3.5rem);line-height:1.14;font-weight:700;letter-spacing:-0.02em;
  }
  .hero-lead{max-width:780px;margin-top:20px;font-size:16px;line-height:1.9;color:var(--ink-2);}
  .hero-stats{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}

  /* ---------- Anchor strip ---------- */
  .anchor-bar{border-bottom:1px solid var(--line);background:var(--bg-deep);}
  .anchor-strip{
    display:flex;gap:10px;overflow-x:auto;padding:16px 0;
    scrollbar-width:none;-ms-overflow-style:none;
  }
  .anchor-strip::-webkit-scrollbar{display:none;}
  .anchor-pill{
    flex:none;display:inline-flex;align-items:center;gap:8px;
    padding:9px 18px;border-radius:999px;white-space:nowrap;
    font-size:14px;color:var(--ink-2);
    border:1px solid rgba(38,224,200,0.28);
    background:rgba(20,34,54,0.45);
    transition:color 180ms ease-out,border-color 180ms ease-out,background 180ms ease-out,transform 180ms ease-out;
  }
  .anchor-pill:hover{color:var(--brand);border-color:rgba(38,224,200,0.75);background:rgba(38,224,200,0.1);transform:translateY(-1px);}
  .anchor-pill.is-active{color:var(--brand);border-color:rgba(38,224,200,0.8);background:rgba(38,224,200,0.14);}
  .anchor-pill .pill-idx{font-family:var(--font-mono);font-size:12px;color:var(--ink-3);}

  /* ---------- Group cards ---------- */
  .group-grid{display:grid;grid-template-columns:1fr;gap:24px;}
  @media (min-width:900px){ .group-grid{grid-template-columns:1fr 1fr;gap:28px;} }
  .group-card{
    background:var(--bg-panel);
    border:1px solid var(--line);
    border-radius:var(--radius-lg);
    padding:22px 20px;
    box-shadow:var(--shadow-card);
    scroll-margin-top:96px;
    transition:border-color 180ms ease-out;
  }
  @media (min-width:768px){ .group-card{padding:26px 24px;} }
  .group-card:hover{border-color:rgba(110,205,255,0.28);}
  .group-head{display:flex;align-items:center;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line);}
  .group-icon{
    flex:none;width:38px;height:38px;border-radius:12px;
    display:inline-flex;align-items:center;justify-content:center;
    color:var(--brand);border:1px solid rgba(38,224,200,0.3);background:rgba(38,224,200,0.08);
  }
  .group-head h3{font-size:1.15rem;font-weight:600;line-height:1.4;}
  .group-sub{font-size:13px;color:var(--ink-3);margin-top:2px;}
  .term-list{display:flex;flex-direction:column;gap:4px;margin-top:14px;}
  .term-row{
    display:flex;align-items:flex-start;gap:12px;
    padding:11px 12px;border-radius:12px;
    transition:background 180ms ease-out,transform 180ms ease-out;
  }
  .term-row:hover,.term-row:focus-visible{background:rgba(38,224,200,0.07);transform:translateX(2px);}
  .term-body{display:flex;flex-direction:column;gap:2px;min-width:0;}
  .term-name{font-size:15px;font-weight:600;color:var(--ink-1);}
  .term-desc{font-size:13px;color:var(--ink-2);line-height:1.7;}
  .term-arrow{
    margin-left:auto;flex:none;color:var(--ink-3);font-size:15px;line-height:1.6;
    transition:transform 180ms ease-out,color 180ms ease-out;
  }
  .term-row:hover .term-arrow{color:var(--brand);transform:translateX(3px);}

  /* ---------- Tag cloud ---------- */
  .tag-layout{display:grid;grid-template-columns:1fr;gap:32px;}
  @media (min-width:1024px){ .tag-layout{grid-template-columns:1.3fr 1fr;gap:56px;align-items:start;} }
  .tag-cloud{display:flex;flex-wrap:wrap;gap:10px;}
  .tag{
    display:inline-flex;align-items:center;
    padding:7px 15px;border-radius:999px;font-size:13px;
    color:var(--ink-2);
    border:1px solid rgba(38,224,200,0.26);
    background:rgba(38,224,200,0.05);
    transition:color 180ms ease-out,border-color 180ms ease-out,background 180ms ease-out,transform 180ms ease-out;
  }
  .tag:hover{color:var(--brand);border-color:rgba(38,224,200,0.7);background:rgba(38,224,200,0.12);transform:translateY(-1px);}
  .note-panel{
    background:var(--glass);
    border:1px solid var(--line-brand);
    border-radius:var(--radius-lg);
    padding:24px;
    box-shadow:var(--shadow-card);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
  }
  .note-panel h3{font-size:1.05rem;font-weight:600;margin-bottom:12px;}
  .note-list{display:flex;flex-direction:column;gap:10px;}
  .note-list li{display:flex;gap:10px;font-size:14px;color:var(--ink-2);line-height:1.8;}
  .note-mark{flex:none;width:5px;height:5px;border-radius:50%;background:var(--brand);margin-top:11px;opacity:0.85;}

  /* ---------- CTA band ---------- */
  .cta-band{
    position:relative;overflow:hidden;
    border-radius:var(--radius-lg);
    border:1px solid rgba(38,224,200,0.22);
    background:linear-gradient(100deg,rgba(38,224,200,0.16),rgba(14,23,40,0.92) 52%,rgba(14,23,40,0.92));
    padding:30px 22px;
    display:flex;flex-direction:column;gap:20px;
  }
  @media (min-width:768px){
    .cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:40px 44px;gap:36px;}
  }
  .cta-band h2{font-size:clamp(1.4rem,2.4vw,1.9rem);font-weight:650;line-height:1.3;letter-spacing:-0.01em;}
  .cta-band p{margin-top:10px;font-size:15px;color:var(--ink-2);max-width:640px;}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

  /* ---------- Footer ---------- */
  .site-footer{
    border-top:1px solid var(--line);
    background:var(--bg-deep);
    padding:52px 0 0;
  }
  .footer-grid{display:grid;grid-template-columns:1fr;gap:34px;}
  @media (min-width:768px){ .footer-grid{grid-template-columns:1fr 1fr;} }
  @media (min-width:1024px){ .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;} }
  .footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:var(--ink-2);}
  .footer-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;}
  .footer-title{font-size:14px;font-weight:600;color:var(--ink-1);margin-bottom:16px;letter-spacing:0.02em;}
  .footer-links{display:flex;flex-direction:column;gap:10px;}
  .footer-links a{
    font-size:14px;color:var(--ink-2);
    transition:color 180ms ease-out,padding-left 180ms ease-out;
  }
  .footer-links a:hover{color:var(--brand);padding-left:3px;}
  .footer-list{display:flex;flex-direction:column;gap:10px;}
  .footer-list li{display:flex;gap:9px;font-size:14px;color:var(--ink-2);line-height:1.75;}
  .fl-dot{flex:none;width:4px;height:4px;border-radius:50%;background:var(--brand);margin-top:11px;opacity:0.8;}
  .footer-mail{
    font-size:14px;color:var(--brand);
    border-bottom:1px solid rgba(38,224,200,0.4);padding-bottom:1px;
    transition:border-color 180ms ease-out;
  }
  .footer-mail:hover{border-color:var(--brand);}
  .footer-bottom{
    display:flex;flex-direction:column;gap:8px;
    margin-top:44px;padding:20px 0 28px;
    border-top:1px solid var(--line);
    font-size:13px;color:var(--ink-3);
  }
  @media (min-width:768px){
    .footer-bottom{flex-direction:row;align-items:center;justify-content:space-between;}
  }

  @media (prefers-reduced-motion:reduce){
    *{transition-duration:0.01ms !important;animation-duration:0.01ms !important;}
    html{scroll-behavior:auto;}
  }