/* roulang page: index */
:root{
  --bg:#070B16;
  --bg-deep:#0A1128;
  --panel:#101A34;
  --brand:#2BE6C0;
  --brand-soft:#7CF2DC;
  --accent:#FFC24B;
  --danger:#FF5D73;
  --ink:#EAF0FF;
  --ink-2:#A9B6D6;
  --ink-3:#6E7C9E;
  --line:rgba(120,160,255,.14);
  --glass-line:rgba(255,255,255,.10);
  --r-card:18px;
  --r-img:14px;
  --shadow-card:0 20px 60px -24px rgba(0,0,0,.85);
  --ease:cubic-bezier(.22,1,.36,1);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Bahnschrift","Space Grotesk","DIN Alternate",ui-monospace,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

.bg-layer{
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background-color:var(--bg);
  background-image:
    linear-gradient(rgba(120,160,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,160,255,.05) 1px,transparent 1px),
    radial-gradient(680px 480px at 6% 2%,rgba(43,230,192,.08),transparent 70%),
    radial-gradient(620px 520px at 94% 92%,rgba(255,194,75,.06),transparent 70%);
  background-size:64px 64px,64px 64px,auto,auto;
}
.site-header,.site-main,.site-footer{position:relative;z-index:1}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}
@media (min-width:1280px){.container{padding:0 24px}}

/* ===== 玻璃与徽章 ===== */
.glass{
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid var(--glass-line);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
}
@supports not ((backdrop-filter:blur(2px)) or (-webkit-backdrop-filter:blur(2px))){
  .glass{background:rgba(16,26,52,.9)}
}
.glass-strong{
  background:linear-gradient(160deg,rgba(255,255,255,.11),rgba(255,255,255,.03));
  border:1px solid rgba(255,255,255,.14);
  -webkit-backdrop-filter:blur(18px) saturate(150%);
  backdrop-filter:blur(18px) saturate(150%);
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;border-radius:8px;
  font-size:12px;font-weight:600;line-height:1.7;letter-spacing:.02em;
  white-space:nowrap;
}
.badge-brand{background:rgba(43,230,192,.12);color:var(--brand-soft)}
.badge-accent{background:rgba(255,194,75,.14);color:var(--accent)}
.badge-muted{background:rgba(169,182,214,.10);color:var(--ink-2)}
.text-grad{
  background:linear-gradient(96deg,var(--brand) 0%,var(--brand-soft) 45%,var(--accent) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:999px;
  padding:12px 24px;font-size:15px;font-weight:600;line-height:1.5;
  cursor:pointer;transition:all .3s var(--ease);
  background:transparent;
}
.btn-primary{
  background:var(--brand);color:#071018;
  box-shadow:0 0 0 1px rgba(43,230,192,.35),0 10px 30px -8px rgba(43,230,192,.45);
}
.btn-primary:hover{
  filter:brightness(1.08);transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(43,230,192,.5),0 16px 36px -8px rgba(43,230,192,.55);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(43,230,192,.35),0 6px 16px -8px rgba(43,230,192,.4)}
.btn-outline{
  border-color:rgba(43,230,192,.4);color:var(--brand);
  background:rgba(43,230,192,.03);
}
.btn-outline:hover{background:rgba(43,230,192,.12);transform:translateY(-2px)}
.btn-outline:active{transform:translateY(0);background:rgba(43,230,192,.08)}
.btn-ghost{color:var(--ink-2);padding:12px 6px}
.btn-ghost .arrow{transition:transform .3s var(--ease)}
.btn-ghost:hover{color:var(--brand)}
.btn-ghost:hover .arrow{transform:translateX(4px)}
.btn-sm{padding:8px 16px;font-size:13px}
.btn-block{width:100%}
.btn:disabled,.btn[disabled]{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none}
.btn-glow{box-shadow:0 0 0 1px rgba(43,230,192,.35),0 10px 30px -8px rgba(43,230,192,.45)}

/* ===== 导航 ===== */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(7,11,22,.55);
  border-bottom:1px solid transparent;
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  transition:background .35s var(--ease),border-color .35s var(--ease);
}
.site-header.is-scrolled{background:rgba(7,11,22,.86);border-bottom-color:var(--line)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;height:72px}
.brand{display:inline-flex;align-items:center;gap:12px;min-height:44px}
.brand-mark{
  width:40px;height:40px;border-radius:12px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--brand) 8%,var(--accent) 118%);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 22px -12px rgba(43,230,192,.9);
  position:relative;
}
.brand-mark::before{
  content:"";width:16px;height:16px;border-radius:5px;
  border:2px solid rgba(7,16,24,.82);
  border-right-color:transparent;border-bottom-color:transparent;
  transform:rotate(-45deg);
}
.brand-text{
  font-size:17px;font-weight:700;letter-spacing:-.01em;color:var(--ink);
  white-space:nowrap;
}
.nav-desktop{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:10px 14px;border-radius:999px;
  font-size:15px;font-weight:500;color:var(--ink-2);
  transition:color .25s var(--ease),background .25s var(--ease);
}
.nav-link:hover{color:var(--ink);background:rgba(255,255,255,.06)}
.nav-link.is-active{color:#fff}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:4px;
  width:60%;height:2px;border-radius:2px;
  transform:translateX(-50%);
  background:linear-gradient(90deg,transparent,var(--brand),transparent);
  box-shadow:0 0 8px rgba(43,230,192,.7);
}
.nav-cta{margin-left:14px;padding:10px 22px;font-size:14px}
.burger{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  align-items:center;justify-content:center;cursor:pointer;
}
.burger span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.burger span::before,.burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
}
.burger span::before{top:-6px}
.burger span::after{top:6px}

.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:90;
  width:86vw;max-width:360px;
  background:rgba(10,17,40,.96);
  border-left:1px solid var(--glass-line);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  transform:translateX(100%);
  transition:transform .34s var(--ease);
  display:flex;flex-direction:column;
  padding:16px;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:56px}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);color:var(--ink);font-size:20px;line-height:1;cursor:pointer;
}
.drawer-nav{margin-top:8px;flex:1}
.drawer-link{
  display:flex;align-items:center;height:52px;padding:0 8px;
  border-bottom:1px solid rgba(255,255,255,.07);
  font-size:16px;color:var(--ink-2);
}
.drawer-link.is-active{color:var(--brand)}
.drawer-cta{margin-top:16px}
.drawer-mask{
  position:fixed;inset:0;z-index:80;background:rgba(3,6,14,.66);
  opacity:0;pointer-events:none;transition:opacity .3s var(--ease);
}
.drawer-mask.open{opacity:1;pointer-events:auto}

/* ===== 倒计时条 ===== */
.countdown-bar{
  background:linear-gradient(90deg,rgba(255,194,75,.08),rgba(255,194,75,.03) 60%,rgba(255,194,75,.08));
  border-bottom:1px solid rgba(255,194,75,.25);
}
.countdown-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;height:44px}
.cd-left{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--accent);font-weight:600;white-space:nowrap}
.pulse-dot{
  width:7px;height:7px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 0 0 rgba(255,194,75,.55);
  animation:pulse 2s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(255,194,75,.5)}
  70%{box-shadow:0 0 0 8px rgba(255,194,75,0)}
  100%{box-shadow:0 0 0 0 rgba(255,194,75,0)}
}
.cd-right{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--ink-2);white-space:nowrap}
.cd-box{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:28px;border-radius:8px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  font-family:var(--font-num);font-size:14px;font-weight:600;color:var(--ink);
  font-variant-numeric:tabular-nums;
}
.cd-sep{color:var(--ink-3)}

/* ===== Hero ===== */
.hero{padding:72px 0 88px;position:relative}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.hero-copy .badge{margin-bottom:18px}
.hero h1{
  font-size:clamp(34px,5vw,56px);
  line-height:1.15;font-weight:700;letter-spacing:-.01em;
  margin:0 0 18px;
}
.hero-sub{font-size:16px;line-height:1.85;color:var(--ink-2);max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:28px}
.hero-stats{
  display:flex;flex-wrap:wrap;align-items:center;gap:20px;
  margin-top:34px;padding-top:22px;border-top:1px solid var(--line);
}
.hero-stats .stat{display:flex;align-items:baseline;gap:8px}
.hero-stats .num{
  font-family:var(--font-num);font-size:24px;font-weight:700;color:var(--brand);
  font-variant-numeric:tabular-nums;letter-spacing:.01em;
}
.hero-stats .lbl{font-size:13px;color:var(--ink-3)}
.hero-stats .divider{width:1px;height:18px;background:var(--line)}

.hero-visual{position:relative}
.hero-imgwrap{
  position:relative;border-radius:16px;overflow:hidden;
  border:1px solid var(--glass-line);
  box-shadow:var(--shadow-card);
}
.hero-imgwrap img{width:100%;height:auto;object-fit:cover}
.hero-mask{position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,11,22,.10),rgba(7,11,22,.86))}
.hero-info{
  position:absolute;left:-28px;bottom:-28px;
  width:min(340px,92%);
  padding:24px;border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
}
.hero-info ul{margin:14px 0 18px;display:grid;gap:10px}
.hero-info li{
  position:relative;padding-left:18px;
  font-size:13.5px;line-height:1.7;color:var(--ink-2);
}
.hero-info li::before{
  content:"";position:absolute;left:0;top:9px;
  width:6px;height:6px;border-radius:2px;background:var(--brand);
}

/* ===== 板块通用 ===== */
.section{padding:96px 0}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:32px;flex-wrap:wrap;
}
.section-title{
  font-size:32px;line-height:1.3;font-weight:700;letter-spacing:-.01em;margin:0;
}
.section-desc{margin-top:10px;font-size:14px;color:var(--ink-3);max-width:46em}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-num);font-size:12px;letter-spacing:.18em;
  color:var(--brand);text-transform:uppercase;margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brand);opacity:.7}
.link-more{font-size:14px;color:var(--ink-2);display:inline-flex;align-items:center;gap:6px;transition:color .25s var(--ease)}
.link-more:hover{color:var(--brand)}
.link-more:hover .arrow{transform:translateX(4px)}
.link-more .arrow{transition:transform .3s var(--ease)}

/* ===== 编号条带 ===== */
.strips{border-top:1px solid var(--line)}
.strip{
  display:grid;grid-template-columns:110px 1fr;gap:24px;align-items:start;
  padding:28px 20px;border-bottom:1px solid var(--line);
  transition:background .3s var(--ease);
}
.strip:hover{background:rgba(43,230,192,.045)}
.strip-num{
  font-family:var(--font-num);font-size:48px;line-height:1;font-weight:700;
  color:var(--brand);opacity:.18;font-variant-numeric:tabular-nums;
  transition:opacity .3s var(--ease);
}
.strip:hover .strip-num{opacity:.38}
.strip-body h3{font-size:20px;line-height:1.4;font-weight:600;margin-bottom:6px}
.strip-body p{font-size:14px;line-height:1.8;color:var(--ink-2);max-width:56em}

/* ===== 图墙 ===== */
.wall{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:180px;gap:16px}
.wall-item{
  position:relative;overflow:hidden;border-radius:var(--r-img);
  border:1px solid var(--glass-line);display:block;
}
.wall-item:first-child{grid-column:span 2;grid-row:span 2}
.wall-item img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease)}
.wall-item::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,22,0) 40%,rgba(7,11,22,.88));
  transition:background .45s var(--ease);
}
.wall-cap{
  position:absolute;left:16px;right:16px;bottom:14px;z-index:2;
  font-size:14px;font-weight:500;color:var(--ink);
  transition:transform .35s var(--ease);
}
.wall-item:hover img{transform:scale(1.04)}
.wall-item:hover::after{background:linear-gradient(180deg,rgba(7,11,22,.15) 20%,rgba(7,11,22,.94))}
.wall-item:hover .wall-cap{transform:translateY(-4px)}

/* ===== 领取表单区 ===== */
.cta-block{
  border-radius:22px;padding:48px;
  display:grid;grid-template-columns:6fr 5fr;gap:48px;
  box-shadow:var(--shadow-card);
}
.cta-block h2{font-size:30px;line-height:1.35;font-weight:700;margin-bottom:14px}
.cta-block .lead{font-size:15px;line-height:1.85;color:var(--ink-2)}
.perk-list{margin-top:24px;display:grid;gap:14px}
.perk-list li{display:flex;gap:10px;font-size:14.5px;line-height:1.7;color:var(--ink-2)}
.perk-list .tick{
  flex:0 0 auto;width:18px;height:18px;margin-top:5px;border-radius:50%;
  background:rgba(43,230,192,.14);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:11px;font-weight:700;
}
.lead-form{
  border-radius:16px;padding:24px;
  background:rgba(7,11,22,.42);
  border:1px solid var(--glass-line);
}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--ink-3);margin-bottom:6px}
.field input,.field select{
  width:100%;padding:12px 14px;border-radius:12px;
  background:rgba(255,255,255,.045);
  border:1px solid var(--line);
  color:var(--ink);font-size:15px;font-family:inherit;
  outline:none;transition:border-color .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease);
}
.field input::placeholder{color:#5C6885}
.field input:focus,.field select:focus{
  border-color:var(--brand);background:rgba(43,230,192,.05);
  box-shadow:0 0 0 3px rgba(43,230,192,.18);
}
.field select{
  appearance:none;-webkit-appearance:none;
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23A9B6D6' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;
  padding-right:38px;
}
.field select option{background:var(--panel);color:var(--ink)}
.field-row{display:flex;gap:10px}
.field-row input{flex:1;min-width:0}
.field-row .btn{flex:0 0 auto;white-space:nowrap}
.field.has-error input{border-color:var(--danger);box-shadow:0 0 0 3px rgba(255,93,115,.14)}
.field-err{display:none;margin-top:6px;font-size:12px;color:var(--danger)}
.field.has-error .field-err{display:block}
.form-tip{margin-top:12px;font-size:12px;line-height:1.7;color:var(--ink-3)}

/* ===== 最新信息 ===== */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
  display:flex;flex-direction:column;
  border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .3s var(--ease),border-color .3s var(--ease),background .3s var(--ease);
}
.post-card:hover{
  transform:translateY(-3px);
  border-color:rgba(43,230,192,.28);
  background:linear-gradient(160deg,rgba(255,255,255,.09),rgba(43,230,192,.04));
}
.post-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;border-radius:14px;margin:12px 12px 0}
.post-thumb img{width:100%;height:100%;object-fit:cover}
.post-body{padding:16px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
.post-body h3{
  font-size:18px;line-height:1.5;font-weight:600;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-body p{
  font-size:14px;line-height:1.75;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  margin-top:auto;padding-top:12px;
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--ink-3);
  border-top:1px dashed rgba(120,160,255,.16);
}
.post-meta .arrow{transition:transform .3s var(--ease);color:var(--brand)}
.post-card:hover .post-meta .arrow{transform:translateX(4px)}
.empty-state{
  border-radius:var(--r-card);padding:56px 24px;text-align:center;
}
.empty-state .empty-ico{
  width:52px;height:52px;margin:0 auto 16px;border-radius:14px;
  border:1px dashed rgba(43,230,192,.4);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:20px;
}
.empty-state p{font-size:15px;color:var(--ink-2);margin-bottom:18px}

/* ===== FAQ ===== */
.faq-list{display:grid;gap:12px}
.faq-item{border-radius:14px;overflow:hidden;transition:border-color .3s var(--ease)}
.faq-item.open{border-color:rgba(43,230,192,.3)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 20px;
  background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:500;color:var(--ink-2);
  transition:color .25s var(--ease);
  position:relative;
}
.faq-q:hover{color:var(--ink)}
.faq-item.open .faq-q{color:#fff}
.faq-item.open .faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;
  width:2px;border-radius:2px;background:var(--brand);
  box-shadow:0 0 10px rgba(43,230,192,.8);
}
.faq-ico{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  border:1px solid rgba(255,255,255,.16);color:var(--ink-2);
  display:flex;align-items:center;justify-content:center;font-size:11px;
  transition:transform .35s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.faq-item.open .faq-ico{transform:rotate(180deg);color:var(--brand);border-color:rgba(43,230,192,.5)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .32s var(--ease);
}
.faq-a-inner{
  padding:2px 20px 20px;font-size:15px;line-height:1.8;color:var(--ink-2);
}
.faq-a-inner p+p{margin-top:8px}

/* ===== 页脚 ===== */
.site-footer{
  margin-top:96px;
  border-top:1px solid transparent;
  background:linear-gradient(180deg,rgba(10,17,40,.6),rgba(7,11,22,.96));
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(43,230,192,0),rgba(43,230,192,.65),rgba(255,194,75,0));
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;
  padding:64px 0 40px;
}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:var(--ink-3);max-width:24em}
.socials{display:flex;gap:10px;margin-top:20px}
.socials span{
  width:34px;height:34px;border-radius:50%;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  display:flex;align-items:center;justify-content:center;
  font-size:12px;color:var(--ink-3);
  transition:color .25s var(--ease),border-color .25s var(--ease);
}
.socials span:hover{color:var(--brand);border-color:rgba(43,230,192,.4)}
.footer-col h3{
  font-size:14px;font-weight:600;color:var(--ink);
  letter-spacing:.04em;margin-bottom:16px;
}
.footer-col li{margin-bottom:10px}
.footer-col a,.footer-col span{
  font-size:14px;color:var(--ink-3);
  transition:color .25s var(--ease),transform .25s var(--ease);
  display:inline-block;
}
.footer-col a:hover{color:var(--brand);transform:translateX(2px)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 32px;border-top:1px solid rgba(120,160,255,.10);
  font-size:13px;color:var(--ink-3);
}
.footer-bottom .legal{display:flex;gap:18px;flex-wrap:wrap}

/* ===== 响应式 ===== */
@media (max-width:1279px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:1023px){
  .nav-desktop{display:none}
  .burger{display:flex}
  .hero{padding:56px 0 72px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-info{position:static;width:100%;margin-top:16px;left:auto;bottom:auto}
  .section{padding:72px 0}
  .wall{grid-template-columns:repeat(2,1fr);grid-auto-rows:170px}
  .wall-item:first-child{grid-column:span 2;grid-row:span 1}
  .cta-block{grid-template-columns:1fr;gap:32px;padding:32px}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .site-footer{margin-top:72px}
}
@media (max-width:767px){
  .section{padding:56px 0}
  .section-title{font-size:26px}
  .hero h1{font-size:clamp(30px,7.4vw,40px)}
  .strip{grid-template-columns:64px 1fr;gap:16px;padding:22px 12px}
  .strip-num{font-size:36px}
  .hero-stats{gap:14px}
  .hero-stats .divider{display:none}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding:48px 0 32px}
  .post-grid{grid-template-columns:1fr}
  .wall{grid-template-columns:1fr;grid-auto-rows:180px}
  .wall-item:first-child{grid-column:span 1}
  .cta-block h2{font-size:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:479px){
  .cd-right{font-size:12px}
  .cd-box{width:28px;height:26px;font-size:13px}
  .cd-left{font-size:12px}
  .field-row{flex-direction:column}
  .field-row .btn{width:100%}
  .btn{padding:11px 20px;font-size:14px}
  .hero-actions .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .pulse-dot{animation:none}
}

/* roulang page: category1 */
:root{
  --bg-deep:#070B16;
  --bg-second:#0A1128;
  --panel:#101A34;
  --glass:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  --brand:#2BE6C0;
  --brand-soft:#7CF2DC;
  --accent:#FFC24B;
  --danger:#FF5D73;
  --line:rgba(120,160,255,.14);
  --glass-line:rgba(255,255,255,.10);
  --craft:rgba(232,220,192,.16);
  --ink:#EAF0FF;
  --ink-2:#A9B6D6;
  --ink-3:#6E7C9E;
  --r-card:18px;
  --r-img:14px;
  --r-btn:999px;
  --r-badge:8px;
  --shadow-card:0 20px 60px -24px rgba(0,0,0,.85);
  --ease:cubic-bezier(.22,1,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-deep);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -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(120,160,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,160,255,.05) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(ellipse at 50% 0%,#000 15%,transparent 78%);
  mask-image:radial-gradient(ellipse at 50% 0%,#000 15%,transparent 78%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(620px 420px at 6% -4%,rgba(43,230,192,.08),transparent 62%),
    radial-gradient(560px 400px at 96% 88%,rgba(255,194,75,.06),transparent 62%);
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
h1,h2,h3,h4,p,ul,ol,dl,figure{margin:0}
ul,ol{padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:8px}
::selection{background:rgba(43,230,192,.28);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:rgba(10,17,40,.6)}
::-webkit-scrollbar-thumb{background:rgba(120,160,255,.24);border-radius:8px;border:2px solid rgba(10,17,40,.6)}
::-webkit-scrollbar-thumb:hover{background:rgba(43,230,192,.5)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand);color:#071018;padding:10px 18px;border-radius:0 0 12px 0;z-index:99}
.skip-link:focus{left:0}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(7,11,22,.55);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background .3s var(--ease),border-color .3s var(--ease);
}
.site-header.scrolled{background:rgba(7,11,22,.86);border-bottom-color:var(--line)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px}
.brand-mark{
  width:40px;height:40px;border-radius:12px;position:relative;flex:none;
  background:linear-gradient(140deg,var(--brand) 8%,var(--brand-soft) 48%,var(--accent) 100%);
  box-shadow:0 8px 22px -10px rgba(43,230,192,.7);
}
.brand-mark::before{
  content:"";position:absolute;inset:11px;border:2px solid rgba(7,16,24,.85);border-radius:5px;
}
.brand-mark::after{
  content:"";position:absolute;width:6px;height:6px;border-radius:50%;
  background:rgba(7,16,24,.85);right:9px;top:9px;
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:-.01em;color:var(--ink);white-space:nowrap}
.nav-desktop{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 14px;
  border-radius:var(--r-btn);font-size:15px;font-weight:500;color:var(--ink-2);
  transition:color .3s var(--ease),background .3s var(--ease);
}
.nav-link:hover{color:var(--ink);background:rgba(255,255,255,.06)}
.nav-link.is-active{color:#fff}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:1px;transform:translateX(-50%);
  width:60%;height:2px;border-radius:2px;
  background:linear-gradient(90deg,rgba(43,230,192,0),var(--brand),rgba(43,230,192,0));
  box-shadow:0 0 10px rgba(43,230,192,.55);
}
.nav-cta{margin-left:14px;min-height:40px;padding:0 20px;font-size:14px}
.burger{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border-radius:12px;border:1px solid var(--glass-line);background:rgba(255,255,255,.04);
  cursor:pointer;transition:background .3s var(--ease),border-color .3s var(--ease);
}
.burger:hover{background:rgba(43,230,192,.12);border-color:rgba(43,230,192,.35)}
.burger span{position:relative;width:18px;height:2px;border-radius:2px;background:var(--ink);display:block;transition:background .2s}
.burger span::before,.burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--ink);
}
.burger span::before{top:-6px}
.burger span::after{top:6px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;cursor:pointer;
  border:1px solid transparent;text-decoration:none;white-space:nowrap;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),background .3s var(--ease),color .3s var(--ease),border-color .3s var(--ease);
}
.btn-primary{background:var(--brand);color:#071018}
.btn-glow{box-shadow:0 0 0 1px rgba(43,230,192,.35),0 10px 30px -8px rgba(43,230,192,.45)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(43,230,192,.5),0 16px 36px -10px rgba(43,230,192,.55)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(43,230,192,.35),0 6px 16px -8px rgba(43,230,192,.4);filter:brightness(.98)}
.btn-secondary{
  background:rgba(255,255,255,.03);border-color:rgba(43,230,192,.4);color:var(--brand);
}
.btn-secondary:hover{background:rgba(43,230,192,.12);transform:translateY(-2px);box-shadow:0 12px 28px -14px rgba(43,230,192,.6)}
.btn-secondary:active{transform:translateY(0);background:rgba(43,230,192,.16)}
.btn-ghost{background:transparent;color:var(--ink-2);padding:0 6px;min-height:44px}
.btn-ghost:hover{color:var(--brand)}
.btn-ghost .arrow{transition:transform .3s var(--ease)}
.btn-ghost:hover .arrow{transform:translateX(4px)}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;pointer-events:none}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-badge);
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
}
.badge-brand{background:rgba(43,230,192,.12);color:var(--brand-soft);border:1px solid rgba(43,230,192,.22)}
.badge-accent{background:rgba(255,194,75,.14);color:var(--accent);border:1px solid rgba(255,194,75,.24)}
.badge-dot{width:6px;height:6px;border-radius:50%;background:currentColor;box-shadow:0 0 8px currentColor}
.num{font-variant-numeric:tabular-nums;font-family:"Bahnschrift","Space Grotesk",system-ui,sans-serif}

/* ---------- hero ---------- */
.page-hero{padding:52px 0 64px;position:relative}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-3);margin-bottom:30px}
.breadcrumb a{color:var(--ink-2);transition:color .25s var(--ease)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:rgba(110,124,158,.55)}
.hero-grid{display:grid;grid-template-columns:1.4fr .9fr;gap:48px;align-items:center}
.hero-copy .badge{margin-bottom:18px}
.hero-title{
  font-size:clamp(32px,4.2vw,48px);line-height:1.16;font-weight:700;letter-spacing:-.01em;
  color:#fff;
}
.hero-title em{font-style:normal;color:var(--brand-soft)}
.hero-lead{margin-top:20px;font-size:16.5px;line-height:1.9;color:var(--ink-2);max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:0;
  margin-top:32px;padding-top:22px;border-top:1px dashed var(--craft);
  font-size:13.5px;color:var(--ink-3);
}
.hero-meta .item{display:flex;flex-direction:column;gap:2px;padding-right:22px;margin-right:22px;border-right:1px solid var(--line)}
.hero-meta .item:last-child{border-right:0;padding-right:0;margin-right:0}
.hero-meta b{font-size:19px;color:var(--brand-soft);font-weight:700;letter-spacing:.01em}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-img);border:1px solid var(--glass-line);
  box-shadow:var(--shadow-card);
}
.hero-visual::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-img);pointer-events:none;
  background:linear-gradient(180deg,rgba(7,11,22,0) 45%,rgba(7,11,22,.72));
}
.visual-chip{
  position:absolute;left:16px;bottom:16px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:var(--r-btn);
  background:rgba(10,17,40,.82);border:1px solid var(--glass-line);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  font-size:12.5px;color:var(--ink-2);
}
.visual-chip b{color:var(--brand-soft);font-weight:700}

/* ---------- rule layout ---------- */
.rule-layout{
  display:grid;grid-template-columns:240px minmax(0,1fr);gap:44px;
  align-items:start;padding-bottom:88px;
}
.toc-card{
  position:sticky;top:96px;
  background:var(--glass);
  border:1px solid var(--glass-line);border-radius:var(--r-card);
  padding:20px 18px;
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
}
.toc-title{font-size:13px;letter-spacing:.14em;color:var(--ink-3);margin-bottom:12px;text-transform:uppercase}
.toc-list{display:flex;flex-direction:column;gap:2px}
.toc-link{
  display:block;padding:10px 12px;border-left:2px solid transparent;border-radius:0 10px 10px 0;
  font-size:14.5px;color:var(--ink-2);
  transition:color .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease);
}
.toc-link:hover{color:var(--ink);background:rgba(255,255,255,.05)}
.toc-link.is-active{color:var(--brand-soft);border-left-color:var(--brand);background:rgba(43,230,192,.08)}
.toc-note{
  margin-top:18px;padding-top:16px;border-top:1px dashed var(--craft);
  font-size:12.5px;line-height:1.7;color:var(--ink-3);
}
.rule-main{min-width:0}
.rule-section{padding-bottom:40px;margin-bottom:40px;border-bottom:1px dashed var(--craft)}
.rule-section:last-of-type{border-bottom:0;margin-bottom:0;padding-bottom:12px}
.section-h{
  position:relative;display:flex;align-items:baseline;gap:12px;
  font-size:clamp(23px,2.4vw,28px);line-height:1.35;font-weight:700;color:#fff;
  padding-left:16px;margin-bottom:18px;letter-spacing:-.01em;
}
.section-h::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--brand),rgba(43,230,192,.15));
}
.section-h .no{
  font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.12em;
  font-variant-numeric:tabular-nums;
}
.rule-main p{color:var(--ink-2);line-height:1.95;margin-bottom:16px}
.rule-main p:last-child{margin-bottom:0}
.rule-main strong{color:var(--ink);font-weight:600}
.link-inline{color:var(--brand);border-bottom:1px solid rgba(43,230,192,.3);transition:border-color .25s var(--ease)}
.link-inline:hover{border-bottom-color:var(--brand)}

.rule-list{display:flex;flex-direction:column;gap:12px;margin:20px 0}
.rule-list li{
  position:relative;padding-left:26px;color:var(--ink-2);line-height:1.85;
}
.rule-list li::before{
  content:"";position:absolute;left:0;top:.62em;width:9px;height:9px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 10px rgba(43,230,192,.55);
}
.step-list{counter-reset:step;display:flex;flex-direction:column;gap:16px;margin:22px 0}
.step-list li{
  position:relative;padding:16px 18px 16px 62px;
  background:rgba(255,255,255,.03);border:1px solid var(--glass-line);
  border-radius:14px;color:var(--ink-2);line-height:1.8;
  transition:border-color .3s var(--ease),background .3s var(--ease);
}
.step-list li:hover{border-color:rgba(43,230,192,.28);background:rgba(43,230,192,.05)}
.step-list li::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  position:absolute;left:18px;top:15px;
  font-size:14px;font-weight:700;color:var(--brand);
  font-variant-numeric:tabular-nums;letter-spacing:.06em;
}
.step-list li b{display:block;color:var(--ink);font-size:16px;margin-bottom:2px;font-weight:600}

.stat-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:24px 0}
.stat-cell{
  background:rgba(16,26,52,.6);border:1px solid var(--glass-line);
  border-radius:14px;padding:18px 18px 16px;
  transition:border-color .3s var(--ease),transform .3s var(--ease);
}
.stat-cell:hover{border-color:rgba(43,230,192,.28);transform:translateY(-3px)}
.stat-cell b{
  display:block;font-size:26px;line-height:1.2;color:var(--brand-soft);font-weight:700;
  font-variant-numeric:tabular-nums;
}
.stat-cell span{display:block;margin-top:6px;font-size:13px;color:var(--ink-3)}

.note-card{
  position:relative;margin:26px 0;padding:20px 22px 20px 22px;
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.015));
  border:1px solid var(--glass-line);border-left:3px solid var(--accent);
  border-radius:14px;
}
.note-card h3{
  font-size:15px;font-weight:700;color:var(--accent);margin-bottom:8px;letter-spacing:.02em;
  display:flex;align-items:center;gap:8px;
}
.note-card p{margin:0;font-size:14.5px;color:var(--ink-2);line-height:1.85}

.table-wrap{
  margin:26px 0;overflow-x:auto;
  border:1px solid var(--glass-line);border-radius:var(--r-card);
  background:rgba(16,26,52,.55);
  -webkit-overflow-scrolling:touch;
}
.rule-table{width:100%;min-width:560px;border-collapse:collapse;font-size:14.5px}
.rule-table thead th{
  background:rgba(10,17,40,.92);color:var(--ink);text-align:left;
  padding:14px 18px;font-size:13.5px;font-weight:600;letter-spacing:.04em;
  border-bottom:1px solid var(--line);white-space:nowrap;
}
.rule-table tbody td{
  padding:14px 18px;border-top:1px solid rgba(120,160,255,.10);
  color:var(--ink-2);vertical-align:top;line-height:1.75;
}
.rule-table tbody tr:nth-child(even){background:rgba(255,255,255,.02)}
.rule-table tbody tr:hover{background:rgba(43,230,192,.06)}
.rule-table td:first-child{color:var(--ink);font-weight:600}

.rule-figure{margin:26px 0}
.rule-figure img{
  width:100%;height:auto;border-radius:var(--r-img);
  border:1px solid var(--glass-line);
}
.rule-figure figcaption{margin-top:10px;font-size:13px;color:var(--ink-3)}

.qa-list{display:flex;flex-direction:column;gap:14px;margin-top:8px}
.qa-item{
  padding:18px 20px;border-radius:14px;
  background:rgba(255,255,255,.03);border:1px solid var(--glass-line);
  transition:border-color .3s var(--ease),background .3s var(--ease);
}
.qa-item:hover{border-color:rgba(43,230,192,.24);background:rgba(43,230,192,.05)}
.qa-q{font-size:15.5px;font-weight:600;color:var(--ink);margin-bottom:6px}
.qa-a{font-size:14px;color:var(--ink-3);line-height:1.8;margin:0}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:22px;border:1px solid var(--glass-line);
  padding:48px;
  display:grid;grid-template-columns:1.25fr .75fr;gap:36px;align-items:center;
  background:
    linear-gradient(118deg,rgba(43,230,192,.12),rgba(16,26,52,.92) 52%,rgba(255,194,75,.10));
  box-shadow:var(--shadow-card);
  margin-bottom:32px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;opacity:.16;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  -webkit-mask-image:linear-gradient(90deg,#000,transparent 72%);
  mask-image:linear-gradient(90deg,#000,transparent 72%);
}
.cta-band > *{position:relative;z-index:1}
.cta-band h2{font-size:clamp(23px,2.6vw,30px);line-height:1.35;color:#fff;font-weight:700;letter-spacing:-.01em}
.cta-band p{margin-top:14px;color:var(--ink-2);font-size:15px;line-height:1.9;max-width:36em}
.cta-actions{display:flex;flex-direction:column;gap:12px;align-items:stretch}
.cta-actions .btn{width:100%}
.back-home{display:flex;justify-content:center;padding:8px 0 88px}

/* ---------- footer ---------- */
.site-footer{
  position:relative;padding:64px 0 32px;
  background:linear-gradient(180deg,rgba(7,11,22,0),rgba(10,17,40,.92));
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(43,230,192,.9),rgba(43,230,192,.15) 46%,rgba(43,230,192,0));
}
.footer-grid{
  display:grid;grid-template-columns:1.7fr 1fr 1fr 1.25fr;gap:36px;
  padding-bottom:36px;
}
.footer-brand p{
  margin:16px 0 18px;font-size:14px;line-height:1.9;color:var(--ink-3);max-width:28em;
}
.socials{display:flex;gap:10px}
.socials span{
  width:36px;height:36px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;color:var(--ink-2);
  background:rgba(255,255,255,.04);border:1px solid var(--glass-line);
  transition:color .3s var(--ease),border-color .3s var(--ease),background .3s var(--ease);
}
.socials span:hover{color:var(--brand);border-color:rgba(43,230,192,.35);background:rgba(43,230,192,.08)}
.footer-col h3{font-size:15px;font-weight:600;color:var(--ink);margin-bottom:16px;letter-spacing:.01em}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col li a,.footer-col li span{
  font-size:14px;color:var(--ink-3);line-height:1.6;
  transition:color .25s var(--ease),transform .25s var(--ease);
  display:inline-block;
}
.footer-col li a:hover{color:var(--brand);transform:translateX(2px)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  padding-top:22px;border-top:1px solid var(--line);
  font-size:13px;color:var(--ink-3);
}
.footer-bottom .legal{display:flex;gap:20px}
.footer-bottom .legal span{transition:color .25s var(--ease)}
.footer-bottom .legal span:hover{color:var(--brand)}

/* ---------- drawer ---------- */
.drawer-overlay{
  position:fixed;inset:0;z-index:70;background:rgba(4,7,14,.62);
  opacity:0;pointer-events:none;
  transition:opacity .3s var(--ease);
}
.drawer-overlay.open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;z-index:80;
  width:86vw;max-width:360px;height:100dvh;
  display:flex;flex-direction:column;
  padding:18px;
  background:rgba(10,17,40,.95);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  border-left:1px solid var(--glass-line);
  transform:translateX(105%);
  transition:transform .34s var(--ease);
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.drawer-close{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;border:1px solid var(--glass-line);background:rgba(255,255,255,.04);
  color:var(--ink);cursor:pointer;transition:background .3s var(--ease),border-color .3s var(--ease);
}
.drawer-close:hover{background:rgba(43,230,192,.14);border-color:rgba(43,230,192,.35)}
.drawer-nav{display:flex;flex-direction:column;margin-top:8px}
.drawer-nav a{
  display:flex;align-items:center;height:52px;
  font-size:15.5px;color:var(--ink-2);
  border-bottom:1px solid rgba(120,160,255,.10);
  transition:color .25s var(--ease),padding-left .25s var(--ease);
}
.drawer-nav a:hover{color:var(--brand);padding-left:6px}
.drawer-nav a.is-active{color:var(--brand-soft);font-weight:600}
.drawer-cta{margin-top:auto;width:100%}

/* ---------- responsive ---------- */
@media (max-width:1224px){
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:1023px){
  .nav-desktop{display:none}
  .burger{display:inline-flex}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-visual{order:-1;max-width:560px}
  .rule-layout{grid-template-columns:1fr;gap:28px;padding-bottom:64px}
  .toc-card{position:static;padding:14px}
  .toc-list{flex-direction:row;overflow-x:auto;gap:8px;padding-bottom:4px}
  .toc-link{
    white-space:nowrap;border-left:0;border:1px solid var(--glass-line);
    border-radius:var(--r-btn);padding:0 16px;height:44px;display:inline-flex;align-items:center;
  }
  .toc-link.is-active{border-color:rgba(43,230,192,.45);background:rgba(43,230,192,.12)}
  .toc-note{display:none}
  .cta-band{grid-template-columns:1fr;padding:36px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .page-hero{padding:36px 0 44px}
  .hero-meta{font-size:12.5px;gap:14px}
  .hero-meta .item{border-right:0;padding-right:0;margin-right:0;min-width:88px}
  .stat-row{grid-template-columns:1fr;gap:12px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-band{padding:26px 22px;border-radius:18px}
  .cta-actions{flex-direction:column}
  .rule-section{padding-bottom:32px;margin-bottom:32px}
  .back-home{padding-bottom:64px}
  .site-footer{padding:48px 0 28px}
}
@media (max-width:520px){
  .hero-title{font-size:clamp(27px,7.4vw,34px)}
  .hero-actions .btn{width:100%}
  .step-list li{padding:14px 16px 14px 52px}
  .step-list li::before{left:14px;top:13px}
  .rule-table{font-size:13.5px}
  .rule-table thead th,.rule-table tbody td{padding:12px 14px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;animation-iteration-count:1 !important;
    transition-duration:.001ms !important;scroll-behavior:auto !important;
  }
  .btn:hover,.stat-cell:hover,.footer-col li a:hover{transform:none !important}
}

/* roulang page: article */
:root{
  --bg-deep:#070B16;
  --bg-deep-2:#0A1128;
  --panel:#101A34;
  --glass-bg:linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  --brand:#2BE6C0;
  --brand-soft:#7CF2DC;
  --accent:#FFC24B;
  --danger:#FF5D73;
  --line:rgba(120,160,255,.14);
  --glass-line:rgba(255,255,255,.10);
  --ink:#EAF0FF;
  --ink-2:#A9B6D6;
  --ink-3:#6E7C9E;
  --r-card:18px;
  --r-img:14px;
  --r-badge:8px;
  --shadow-card:0 20px 60px -24px rgba(0,0,0,.85), inset 0 1px 0 rgba(255,255,255,.06);
  --ease:cubic-bezier(.22,1,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  min-height:100%;
  color:var(--ink);
  background-color:var(--bg-deep);
  background-image:
    radial-gradient(900px 520px at 6% -8%, rgba(43,230,192,.08), transparent 70%),
    radial-gradient(760px 480px at 98% 8%, rgba(255,194,75,.06), transparent 72%),
    linear-gradient(rgba(120,160,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,160,255,.05) 1px, transparent 1px);
  background-size:auto, auto, 64px 64px, 64px 64px;
  background-attachment:fixed;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Segoe UI",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  opacity:.035;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='140' height='140'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/></filter><rect width='140' height='140' filter='url(/%23n)' opacity='0.55'/></svg>");
}
body.no-scroll{overflow:hidden}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-soft);text-decoration:none;transition:color .3s var(--ease)}
a:hover{color:var(--brand)}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
::selection{background:rgba(43,230,192,.28);color:#fff}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}

/* ---------- 玻璃与工具类 ---------- */
.glass{
  background:var(--glass-bg);
  border:1px solid var(--glass-line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){
  .glass{background:rgba(16,26,52,.92)}
}
.glass-strong{
  background:linear-gradient(160deg, rgba(21,34,64,.94), rgba(11,19,40,.92));
  border:1px solid var(--glass-line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
}
.grad-text{
  background:linear-gradient(96deg,#7CF2DC 0%,#2BE6C0 48%,#FFC24B 100%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";letter-spacing:.02em}
.divider-line{height:1px;background:linear-gradient(90deg, rgba(43,230,192,.55), rgba(43,230,192,0));border:0;margin:0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 22px;
  border-radius:999px;
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  white-space:nowrap;
  cursor:pointer;
  transition:transform .3s var(--ease), box-shadow .3s var(--ease), background .3s var(--ease), color .3s var(--ease), filter .3s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,#2BE6C0,#8CF5E1);
  color:#06131A;
  box-shadow:0 0 0 1px rgba(43,230,192,.35), 0 10px 30px -8px rgba(43,230,192,.45);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.07);box-shadow:0 0 0 1px rgba(43,230,192,.5), 0 16px 34px -10px rgba(43,230,192,.55);color:#06131A}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(43,230,192,.32), 0 6px 16px -8px rgba(43,230,192,.4)}
.btn-ghost{
  background:rgba(255,255,255,.02);
  border-color:rgba(43,230,192,.4);
  color:var(--brand-soft);
}
.btn-ghost:hover{background:rgba(43,230,192,.12);transform:translateY(-2px);color:#C9FFF4}
.btn-ghost:active{transform:translateY(0);background:rgba(43,230,192,.08)}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--brand-soft);
  background:none;
  border:0;
  padding:4px 0;
  cursor:pointer;
}
.btn-text span.arw{transition:transform .3s var(--ease)}
.btn-text:hover span.arw{transform:translateX(4px)}
.btn:disabled,.btn[disabled]{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  border-radius:var(--r-badge);
  font-size:12px;
  font-weight:600;
  letter-spacing:.04em;
  line-height:1.5;
}
.badge-brand{background:rgba(43,230,192,.12);color:var(--brand-soft);border:1px dashed rgba(43,230,192,.35)}
.badge-accent{background:rgba(255,194,75,.14);color:var(--accent);border:1px dashed rgba(255,194,75,.38)}
.badge-plain{background:rgba(255,255,255,.05);color:var(--ink-2);border:1px solid var(--glass-line)}
.dot-live{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 0 rgba(255,194,75,.55);animation:pulse 2.4s infinite}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(255,194,75,.5)}
  70%{box-shadow:0 0 0 9px rgba(255,194,75,0)}
  100%{box-shadow:0 0 0 0 rgba(255,194,75,0)}
}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(7,11,22,.55);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background .3s var(--ease), border-color .3s var(--ease);
}
.site-header.is-stuck{
  background:rgba(7,11,22,.88);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--ink);
  font-weight:700;
  letter-spacing:-.01em;
}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:40px;
  height:40px;
  border-radius:12px;
  background:linear-gradient(140deg,#2BE6C0 0%,#3FD9C6 58%,#FFC24B 100%);
  box-shadow:0 0 0 1px rgba(43,230,192,.35), 0 8px 22px -10px rgba(43,230,192,.7);
  position:relative;
  flex:0 0 auto;
}
.brand-mark::after{
  content:"";
  position:absolute;
  inset:11px;
  border-radius:5px;
  border:2px solid rgba(6,19,26,.82);
  border-right-color:transparent;
  border-bottom-color:transparent;
  transform:rotate(45deg);
}
.brand-text{font-size:17px;line-height:1.2}
.nav-desktop{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 14px;
  border-radius:999px;
  font-size:15px;
  font-weight:500;
  color:var(--ink-2);
  transition:color .3s var(--ease), background .3s var(--ease);
}
.nav-link:hover{color:var(--ink);background:rgba(255,255,255,.06)}
.nav-link.is-active{color:#fff}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:2px;
  transform:translateX(-50%);
  width:60%;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg, rgba(43,230,192,0), #2BE6C0, rgba(43,230,192,0));
  box-shadow:0 0 10px rgba(43,230,192,.6);
}
.nav-cta{margin-left:10px;min-height:40px;height:40px;padding:0 20px;font-size:14px}
.burger{
  display:none;
  width:44px;
  height:44px;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  border:1px solid var(--glass-line);
  background:rgba(255,255,255,.04);
  cursor:pointer;
  position:relative;
}
.burger span,
.burger span::before,
.burger span::after{
  content:"";
  display:block;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--ink);
  transition:transform .3s var(--ease), opacity .3s var(--ease);
  position:relative;
}
.burger span::before{position:absolute;top:-6px;left:0}
.burger span::after{position:absolute;top:6px;left:0}
.burger[aria-expanded="true"] span{background:transparent}
.burger[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.burger[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}

/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;
  inset:0;
  z-index:70;
  background:rgba(3,7,16,.66);
  opacity:0;
  pointer-events:none;
  transition:opacity .3s var(--ease);
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;
  top:0;
  right:0;
  z-index:80;
  height:100dvh;
  width:86vw;
  max-width:360px;
  transform:translateX(100%);
  transition:transform .35s var(--ease);
  background:linear-gradient(170deg, rgba(16,26,52,.97), rgba(8,14,30,.98));
  border-left:1px solid var(--glass-line);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  display:flex;
  flex-direction:column;
  padding:18px 18px 26px;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--glass-line)}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--glass-line);
  background:rgba(255,255,255,.04);color:var(--ink);font-size:20px;line-height:1;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
}
.drawer-nav{margin-top:8px;flex:1;overflow-y:auto}
.drawer-nav a{
  display:flex;
  align-items:center;
  min-height:52px;
  padding:0 6px;
  font-size:16px;
  color:var(--ink-2);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.drawer-nav a:hover{color:var(--brand-soft)}
.drawer-nav a.is-active{color:#fff}
.drawer-foot{padding-top:16px}
.drawer-foot .btn{width:100%}

/* ---------- 页头区 ---------- */
.page-head{
  position:relative;
  padding:34px 0 30px;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-head::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(180deg, rgba(7,11,22,.86) 0%, rgba(7,11,22,.94) 62%, rgba(7,11,22,1) 100%), url("/assets/images/backpic/back-3.png");
  background-size:cover;
  background-position:center 24%;
  opacity:.55;
  z-index:0;
}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:nowrap;
  overflow:hidden;
  font-size:14px;
  color:var(--ink-3);
  margin-bottom:22px;
}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb a:hover{color:var(--brand-soft)}
.crumb-sep{color:rgba(110,124,158,.7)}
.crumb-current{
  color:var(--ink-3);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
  min-width:0;
}
.head-badge-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:16px}
.article-title{
  font-size:clamp(34px,5vw,56px);
  line-height:1.15;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--ink);
  max-width:960px;
}
.article-meta{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:10px;
  margin-top:22px;
  font-size:13px;
  color:var(--ink-3);
}
.article-meta .sep{color:rgba(110,124,158,.55)}

/* ---------- 文章布局 ---------- */
.article-wrap{padding:48px 0 0}
.article-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:48px;
  align-items:start;
}
.article-main{min-width:0}
.article-body{
  max-width:760px;
  font-size:16px;
  line-height:1.9;
  color:#D9E2F7;
  word-break:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.15em}
.article-body h2{
  font-size:24px;
  line-height:1.4;
  font-weight:700;
  color:var(--ink);
  letter-spacing:-.01em;
  margin:40px 0 16px;
  padding-left:14px;
  border-left:4px solid var(--brand);
  scroll-margin-top:96px;
}
.article-body h3{
  font-size:20px;
  line-height:1.45;
  font-weight:600;
  color:var(--ink);
  margin:28px 0 12px;
  scroll-margin-top:96px;
}
.article-body h4{font-size:17px;font-weight:600;color:var(--brand-soft);margin:22px 0 10px}
.article-body ul{margin:0 0 1.15em}
.article-body ul li{position:relative;padding-left:22px;margin:8px 0}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:2px;
  top:.72em;
  width:7px;
  height:7px;
  border-radius:2px;
  background:var(--brand);
  box-shadow:0 0 8px rgba(43,230,192,.55);
}
.article-body ol{counter-reset:ol;margin:0 0 1.15em}
.article-body ol li{position:relative;padding-left:34px;margin:10px 0;counter-increment:ol}
.article-body ol li::before{
  content:counter(ol);
  position:absolute;
  left:0;
  top:.28em;
  width:23px;
  height:23px;
  border-radius:50%;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:12px;
  font-weight:700;
  color:#06131A;
  background:linear-gradient(135deg,#2BE6C0,#8CF5E1);
  font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:24px 0;
  padding:18px 20px;
  background:linear-gradient(160deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
  border-left:3px solid var(--brand);
  border-radius:12px;
  color:var(--ink-2);
  font-size:15px;
  line-height:1.85;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body a{color:var(--brand-soft);text-decoration:underline;text-decoration-color:rgba(43,230,192,.35);text-underline-offset:3px}
.article-body a:hover{color:var(--brand);text-decoration-color:var(--brand)}
.article-body img{
  border-radius:var(--r-img);
  margin:24px auto;
  box-shadow:0 18px 44px -24px rgba(0,0,0,.9);
}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:10px}
.article-body table{
  width:100%;
  border-collapse:separate;
  border-spacing:0;
  margin:26px 0;
  font-size:14.5px;
  border:1px solid var(--line);
  border-radius:12px;
  overflow:hidden;
  display:table;
}
.article-body thead th{
  background:rgba(16,26,52,.95);
  color:var(--brand-soft);
  font-weight:600;
  text-align:left;
  padding:12px 14px;
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.article-body tbody td{
  padding:12px 14px;
  border-bottom:1px solid rgba(120,160,255,.10);
  color:var(--ink-2);
  vertical-align:top;
}
.article-body tbody tr:nth-child(even) td{background:rgba(255,255,255,.025)}
.article-body tbody tr:last-child td{border-bottom:0}
.article-body hr{border:0;height:1px;background:var(--line);margin:32px 0}
.article-body code{
  font-family:"Bahnschrift","Space Grotesk",ui-monospace,monospace;
  font-size:13.5px;
  padding:2px 6px;
  border-radius:6px;
  background:rgba(43,230,192,.10);
  color:var(--brand-soft);
}

/* ---------- 标签与翻页 ---------- */
.tag-row{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:10px;
  margin:44px 0 0;
  padding-top:24px;
  border-top:1px dashed rgba(120,160,255,.22);
}
.tag-row .tag-label{font-size:13px;color:var(--ink-3);margin-right:2px}
.tag{
  display:inline-flex;
  align-items:center;
  height:30px;
  padding:0 13px;
  border-radius:999px;
  font-size:13px;
  color:var(--ink-2);
  background:rgba(255,255,255,.04);
  border:1px solid var(--glass-line);
  transition:all .3s var(--ease);
}
.tag:hover{color:var(--brand-soft);border-color:rgba(43,230,192,.45);background:rgba(43,230,192,.08)}

.pager-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;
  margin-top:28px;
}
.pager-card{
  display:block;
  padding:18px 20px;
  border-radius:14px;
  background:var(--glass-bg);
  border:1px solid var(--glass-line);
  transition:transform .3s var(--ease), border-color .3s var(--ease), background .3s var(--ease);
}
.pager-card:hover{transform:translateY(-3px);border-color:rgba(43,230,192,.28);background:rgba(255,255,255,.06)}
.pager-dir{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--accent);
  margin-bottom:8px;
}
.pager-title{
  font-size:15px;
  font-weight:600;
  color:var(--ink);
  line-height:1.55;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}

/* ---------- 侧栏 ---------- */
.article-side{
  position:sticky;
  top:96px;
  display:flex;
  flex-direction:column;
  gap:20px;
  margin-top:6px;
}
.side-card{
  padding:20px;
  border-radius:14px;
  background:var(--glass-bg);
  border:1px solid var(--glass-line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
}
.side-title{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:700;
  color:var(--ink);
  letter-spacing:.02em;
  margin-bottom:14px;
  padding-bottom:12px;
  border-bottom:1px dashed rgba(120,160,255,.22);
}
.side-title::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--brand);box-shadow:0 0 10px rgba(43,230,192,.6)}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:46vh;overflow-y:auto}
.toc-list a{
  display:block;
  padding:7px 10px;
  font-size:13.5px;
  line-height:1.55;
  color:var(--ink-2);
  border-left:2px solid transparent;
  border-radius:0 8px 8px 0;
  transition:all .3s var(--ease);
}
.toc-list a:hover{color:var(--ink);background:rgba(255,255,255,.05)}
.toc-list a.is-current{color:var(--brand-soft);border-left-color:var(--brand);background:rgba(43,230,192,.08)}
.toc-list a.toc-sub{padding-left:22px;font-size:13px;color:var(--ink-3)}
.toc-empty{font-size:13px;color:var(--ink-3);line-height:1.7}
.toc-toggle{
  display:none;
  width:100%;
  margin-top:0;
  background:none;
  border:0;
  color:var(--ink-2);
  font-size:13px;
  cursor:pointer;
  padding:6px 0 0;
  text-align:left;
}
.rel-list{display:flex;flex-direction:column;gap:14px}
.rel-item{display:flex;gap:12px;align-items:flex-start}
.rel-thumb{
  width:72px;
  height:56px;
  border-radius:10px;
  object-fit:cover;
  flex:0 0 auto;
  border:1px solid var(--glass-line);
}
.rel-text{
  font-size:13.5px;
  line-height:1.55;
  color:var(--ink-2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  transition:color .3s var(--ease);
}
.rel-item:hover .rel-text{color:var(--brand-soft)}

/* ---------- 空态 ---------- */
.empty-state{
  max-width:760px;
  padding:48px 32px;
  text-align:center;
  border-radius:var(--r-card);
  background:var(--glass-bg);
  border:1px dashed rgba(120,160,255,.28);
}
.empty-state h2{font-size:22px;font-weight:700;color:var(--ink);margin-bottom:10px}
.empty-state p{font-size:15px;color:var(--ink-2);line-height:1.8;margin-bottom:22px}

/* ---------- FAQ ---------- */
.article-faq{margin-top:52px;max-width:760px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px}
.section-head h2{font-size:26px;font-weight:700;letter-spacing:-.01em;color:var(--ink)}
.section-head p{font-size:13px;color:var(--ink-3)}
.faq-item{
  border-radius:14px;
  border:1px solid var(--glass-line);
  background:rgba(255,255,255,.03);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .3s var(--ease), background .3s var(--ease);
}
.faq-item:hover{border-color:rgba(43,230,192,.24)}
.faq-item.is-open{border-color:rgba(43,230,192,.34);background:rgba(43,230,192,.05)}
.faq-btn{
  width:100%;
  min-height:56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:0 20px;
  background:none;
  border:0;
  cursor:pointer;
  text-align:left;
  font-size:16px;
  font-weight:500;
  color:var(--ink-2);
  transition:color .3s var(--ease);
}
.faq-item.is-open .faq-btn{color:#fff}
.faq-icon{
  width:18px;height:18px;flex:0 0 auto;position:relative;
  transition:transform .3s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px;transition:opacity .3s var(--ease)}
.faq-item.is-open .faq-icon{transform:rotate(180deg)}
.faq-item.is-open .faq-icon::after{opacity:0}
.faq-panel{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-panel-inner{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--ink-2)}
.faq-item.is-open .faq-panel-inner{padding-top:2px}

/* ---------- 底部 CTA ---------- */
.cta-band{padding:72px 0 80px}
.cta-card{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:32px;
  align-items:center;
  padding:44px 44px;
  border-radius:22px;
  background:linear-gradient(155deg, rgba(21,34,64,.92), rgba(10,17,36,.94));
  border:1px solid rgba(43,230,192,.20);
  box-shadow:0 30px 80px -40px rgba(43,230,192,.35), var(--shadow-card);
  position:relative;
  overflow:hidden;
}
.cta-card::after{
  content:"";
  position:absolute;
  width:320px;height:320px;right:-90px;bottom:-140px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(43,230,192,.18), transparent 70%);
  pointer-events:none;
}
.cta-card h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.3;margin:14px 0 12px;letter-spacing:-.01em}
.cta-card p{font-size:15px;color:var(--ink-2);line-height:1.85;max-width:52ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
.cta-actions .btn{min-width:150px}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  padding:56px 0 26px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg, rgba(10,17,40,.6), rgba(7,11,22,.95));
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg, rgba(43,230,192,.85), rgba(43,230,192,0) 70%);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:34px;
}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--ink-2);margin:14px 0 16px;max-width:34ch}
.socials{display:flex;gap:10px}
.socials span{
  width:34px;height:34px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;color:var(--ink-2);
  background:rgba(255,255,255,.04);
  border:1px solid var(--glass-line);
  transition:all .3s var(--ease);
}
.socials span:hover{color:var(--brand-soft);border-color:rgba(43,230,192,.4)}
.footer-col h3{font-size:14px;font-weight:700;color:var(--ink);letter-spacing:.04em;margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col span{font-size:14px;color:var(--ink-2);line-height:1.7}
.footer-col a{display:inline-block;transition:color .3s var(--ease), transform .3s var(--ease)}
.footer-col a:hover{color:var(--brand-soft);transform:translateX(-2px)}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-top:20px;
  border-top:1px solid rgba(120,160,255,.10);
  font-size:13px;
  color:var(--ink-3);
}
.legal{display:flex;gap:18px}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;
  right:20px;
  bottom:24px;
  z-index:60;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--glass-line);
  background:rgba(16,26,52,.9);
  color:var(--brand-soft);
  font-size:16px;
  cursor:pointer;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  opacity:0;
  pointer-events:none;
  transform:translateY(8px);
  transition:opacity .3s var(--ease), transform .3s var(--ease);
}
.to-top.is-show{opacity:1;pointer-events:auto;transform:translateY(0)}
.to-top:hover{border-color:rgba(43,230,192,.4)}

/* ---------- 响应式 ---------- */
@media (max-width:1223px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:1023px){
  .nav-desktop{display:none}
  .burger{display:inline-flex}
  .article-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .article-side{position:static;top:auto;order:-1;margin:0}
  .side-card{padding:18px}
  .toc-list{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
  .toc-card.is-open .toc-list{max-height:60vh;overflow-y:auto}
  .toc-toggle{display:inline-flex;align-items:center;justify-content:space-between;gap:8px}
  .rel-card{display:none}
  .cta-card{grid-template-columns:1fr;padding:34px 28px;gap:22px}
  .cta-actions{justify-content:flex-start}
  .brand-text{font-size:16px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .nav-wrap{height:64px}
  .page-head{padding:24px 0 24px}
  .article-wrap{padding:32px 0 0}
  .article-title{font-size:clamp(26px,7vw,34px)}
  .article-body{font-size:15.5px;line-height:1.85}
  .article-body h2{font-size:21px;margin-top:32px}
  .article-body h3{font-size:18px;margin-top:24px}
  .pager-grid{grid-template-columns:1fr}
  .article-faq{margin-top:40px}
  .section-head h2{font-size:22px}
  .cta-band{padding:52px 0 60px}
  .cta-card{padding:28px 20px;border-radius:18px}
  .cta-actions .btn{flex:1 1 auto;min-width:0}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .empty-state{padding:36px 20px}
  .to-top{right:14px;bottom:16px}
}
@media (max-width:520px){
  .brand-text{font-size:15px}
  .head-badge-row{gap:8px}
  .article-meta{font-size:12.5px;gap:8px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .btn:hover,.pager-card:hover,.footer-col a:hover{transform:none !important}
}
/* 自定义滚动条 */
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:rgba(7,11,22,.9)}
::-webkit-scrollbar-thumb{background:rgba(43,230,192,.28);border-radius:8px;border:2px solid rgba(7,11,22,.9)}
::-webkit-scrollbar-thumb:hover{background:rgba(43,230,192,.45)}

/* roulang page: category2 */
:root{
  --bg:#070B16;
  --bg-deep:#0A1128;
  --panel:#101A34;
  --brand:#2BE6C0;
  --brand-soft:#7CF2DC;
  --accent:#FFC24B;
  --danger:#FF5D73;
  --line:rgba(120,160,255,.14);
  --glass-line:rgba(255,255,255,.10);
  --ink:#EAF0FF;
  --ink-2:#A9B6D6;
  --ink-3:#6E7C9E;
  --r-card:18px;
  --r-img:14px;
  --r-input:12px;
  --shadow-card:0 20px 60px -24px rgba(0,0,0,.85), inset 0 1px 0 rgba(255,255,255,.06);
  --shadow-glow:0 0 0 1px rgba(43,230,192,.35), 0 10px 30px -8px rgba(43,230,192,.45);
  --ease:cubic-bezier(.22,1,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden;}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}

/* 背景装饰 */
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    radial-gradient(circle at 12% 8%, rgba(43,230,192,.08), transparent 46%),
    radial-gradient(circle at 88% 82%, rgba(255,194,75,.06), transparent 44%),
    linear-gradient(rgba(120,160,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,160,255,.05) 1px, transparent 1px);
  background-size:auto,auto,64px 64px,64px 64px;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  opacity:.28;
  background-image:radial-gradient(rgba(255,255,255,.045) 1px, transparent 1px);
  background-size:3px 3px;
  mix-blend-mode:soft-light;
}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 16px;
  position:relative;
  z-index:1;
}
@media (min-width:1024px){ .container{padding:0 24px;} }

/* 玻璃工具类 */
.glass{
  background:linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  border:1px solid var(--glass-line);
  border-radius:var(--r-card);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);
}
@supports not (backdrop-filter: blur(4px)){
  .glass{background:rgba(16,26,52,.88);}
}
.glass-strong{
  background:linear-gradient(160deg, rgba(18,30,58,.94), rgba(10,17,40,.92));
  border:1px solid rgba(43,230,192,.16);
  border-radius:var(--r-card);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--shadow-card);
}
.grad-text{
  background:linear-gradient(96deg, var(--brand-soft), var(--brand) 46%, var(--accent));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.retro-frame{
  position:relative;
  border:1px solid rgba(255,255,255,.14);
  box-shadow:inset 0 0 0 4px rgba(7,11,22,.55), inset 0 0 0 5px rgba(255,255,255,.08);
}

/* 头部导航 */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(7,11,22,.55);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background .3s var(--ease), border-color .3s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(7,11,22,.88);
  border-bottom-color:var(--line);
}
.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:40px;
  height:40px;
  border-radius:12px;
  background:linear-gradient(140deg, var(--brand) 8%, #14a58f 52%, var(--accent) 100%);
  position:relative;
  box-shadow:0 8px 22px -10px rgba(43,230,192,.8);
}
.brand-mark::after{
  content:"";
  position:absolute;
  inset:11px;
  border-radius:4px;
  border:2px solid rgba(7,16,24,.82);
  border-bottom-color:transparent;
  border-right-color:transparent;
  transform:rotate(-45deg);
}
.brand-text{
  font-size:17px;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--ink);
  white-space:nowrap;
}
.nav-desktop{
  display:none;
  align-items:center;
  gap:4px;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 14px;
  font-size:15px;
  font-weight:500;
  color:var(--ink-2);
  border-radius:999px;
  transition:color .3s var(--ease), background .3s var(--ease);
}
.nav-link:hover{color:var(--ink);background:rgba(255,255,255,.06);}
.nav-link.is-active{color:#fff;}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:-9px;
  transform:translateX(-50%);
  width:60%;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg, transparent, var(--brand), transparent);
  box-shadow:0 0 10px rgba(43,230,192,.7);
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 22px;
  border:none;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:transform .3s var(--ease), box-shadow .3s var(--ease), background .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease);
}
.btn-primary{
  background:var(--brand);
  color:#071018;
  box-shadow:var(--shadow-glow);
}
.btn-primary:hover{background:var(--brand-soft);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(43,230,192,.5), 0 16px 34px -10px rgba(43,230,192,.6);}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(43,230,192,.3), 0 6px 16px -8px rgba(43,230,192,.4);}
.btn-outline{
  background:transparent;
  color:var(--brand);
  border:1px solid rgba(43,230,192,.4);
}
.btn-outline:hover{background:rgba(43,230,192,.12);transform:translateY(-2px);}
.btn-outline:active{transform:translateY(0);background:rgba(43,230,192,.08);}
.btn-ghost{
  background:transparent;
  color:var(--ink-2);
  padding:0 6px;
}
.btn-ghost:hover{color:var(--brand);}
.btn-ghost .arrow{transition:transform .3s var(--ease);display:inline-block;}
.btn-ghost:hover .arrow{transform:translateX(4px);}
.btn[disabled]{opacity:.45;box-shadow:none;cursor:not-allowed;}
.nav-cta{display:none;}
.burger{
  width:44px;
  height:44px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  border-radius:12px;
  cursor:pointer;
  transition:background .3s var(--ease);
}
.burger:hover{background:rgba(255,255,255,.1);}
.burger span,
.burger span::before,
.burger span::after{
  display:block;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--ink);
  position:relative;
  transition:transform .3s var(--ease), opacity .3s var(--ease);
}
.burger span::before,
.burger span::after{content:"";position:absolute;left:0;}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}
.burger[aria-expanded="true"] span{background:transparent;}
.burger[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg);}
.burger[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg);}

/* 抽屉 */
.drawer{
  position:fixed;
  top:0;
  right:0;
  bottom:0;
  width:86vw;
  max-width:360px;
  z-index:80;
  transform:translateX(102%);
  transition:transform .36s var(--ease);
  display:flex;
  flex-direction:column;
  padding:18px 18px 24px;
  background:linear-gradient(170deg, rgba(16,26,52,.97), rgba(7,11,22,.98));
  border-left:1px solid var(--glass-line);
  box-shadow:-24px 0 60px -20px rgba(0,0,0,.9);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-bottom:14px;
  border-bottom:1px solid var(--line);
}
.drawer-close{
  width:44px;
  height:44px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:rgba(255,255,255,.06);
  border:1px solid var(--line);
  border-radius:12px;
  color:var(--ink);
  font-size:20px;
  cursor:pointer;
}
.drawer-nav{display:flex;flex-direction:column;margin-top:10px;}
.drawer-nav a{
  display:flex;
  align-items:center;
  height:52px;
  font-size:16px;
  color:var(--ink-2);
  border-bottom:1px solid rgba(255,255,255,.06);
  transition:color .25s var(--ease), padding-left .25s var(--ease);
}
.drawer-nav a:hover,
.drawer-nav a.is-active{color:var(--brand);padding-left:6px;}
.drawer-foot{margin-top:auto;padding-top:20px;}
.drawer-foot .btn{width:100%;}
.scrim{
  position:fixed;
  inset:0;
  background:rgba(4,7,14,.6);
  backdrop-filter:blur(3px);
  z-index:70;
  opacity:0;
  visibility:hidden;
  transition:opacity .3s var(--ease), visibility .3s var(--ease);
}
.scrim.is-open{opacity:1;visibility:visible;}

@media (min-width:900px){
  .nav-desktop{display:flex;}
  .nav-cta{display:inline-flex;margin-left:8px;}
  .burger{display:none;}
}

/* 页面 Hero */
.page-hero{
  position:relative;
  padding:36px 0 56px;
  z-index:1;
}
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--ink-3);
  margin-bottom:26px;
  flex-wrap:wrap;
}
.crumb a{color:var(--ink-2);transition:color .25s var(--ease);}
.crumb a:hover{color:var(--brand);}
.crumb span[aria-current]{color:var(--ink-3);}
.hero-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:32px;
  align-items:center;
}
.hero-copy .badge{margin-bottom:16px;}
.page-hero h1{
  font-size:clamp(30px,5vw,50px);
  line-height:1.16;
  font-weight:700;
  letter-spacing:-.01em;
  margin-bottom:18px;
}
.lead{
  font-size:16px;
  color:var(--ink-2);
  max-width:56ch;
  margin-bottom:26px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}
.hero-figure{
  position:relative;
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--glass-line);
  box-shadow:0 24px 60px -28px rgba(0,0,0,.95);
  aspect-ratio:4/3;
  background:var(--panel);
}
.hero-figure img{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(.85) brightness(.82);
}
.hero-figure::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg, rgba(7,11,22,.15), rgba(7,11,22,.78));
}
.figure-tag{
  position:absolute;
  left:16px;
  bottom:16px;
  right:16px;
  z-index:2;
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--ink);
  padding:10px 14px;
  border-radius:12px;
  background:rgba(7,11,22,.62);
  border:1px solid rgba(255,255,255,.12);
  backdrop-filter:blur(8px);
}
.figure-tag .dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 4px rgba(255,194,75,.16);
}
@media (min-width:900px){
  .page-hero{padding:52px 0 72px;}
  .hero-grid{grid-template-columns:7fr 5fr;gap:44px;}
}

/* 数据条 */
.stat-row{
  display:grid;
  grid-template-columns:1fr;
  gap:14px;
  margin-top:36px;
}
.stat-item{
  display:flex;
  align-items:baseline;
  gap:10px;
  padding:16px 20px;
  border-radius:14px;
  background:linear-gradient(160deg, rgba(255,255,255,.06), rgba(255,255,255,.015));
  border:1px solid var(--line);
}
.stat-item .num{
  font-family:"Bahnschrift","Space Grotesk",system-ui,sans-serif;
  font-variant-numeric:tabular-nums;
  font-size:24px;
  font-weight:700;
  color:var(--brand);
  letter-spacing:-.02em;
}
.stat-item .lab{font-size:13px;color:var(--ink-3);}
@media (min-width:640px){ .stat-row{grid-template-columns:repeat(3,1fr);} }

/* 通用板块 */
.section{
  padding:52px 0;
  position:relative;
  z-index:1;
}
@media (min-width:768px){ .section{padding:72px 0;} }
@media (min-width:1024px){ .section{padding:88px 0;} }
.section-head{
  display:flex;
  flex-direction:column;
  gap:14px;
  margin-bottom:34px;
}
.section-head h2{
  font-size:26px;
  line-height:1.3;
  font-weight:700;
  letter-spacing:-.01em;
}
.section-head p{font-size:15px;color:var(--ink-2);max-width:62ch;}
.section-head .kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--brand);
  letter-spacing:.08em;
}
.section-head .kicker::before{
  content:"";
  width:22px;height:1px;
  background:linear-gradient(90deg, var(--brand), transparent);
}
@media (min-width:768px){
  .section-head{flex-direction:row;align-items:flex-end;justify-content:space-between;gap:32px;}
  .section-head h2{font-size:32px;}
}

/* 徽章 */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:26px;
  padding:0 12px;
  border-radius:8px;
  font-size:13px;
  font-weight:500;
  line-height:1;
}
.badge-brand{background:rgba(43,230,192,.12);color:var(--brand);}
.badge-accent{background:rgba(255,194,75,.14);color:var(--accent);}
.badge-muted{background:rgba(255,255,255,.06);color:var(--ink-3);}

/* 时间轴 */
.timeline{
  position:relative;
  padding:8px 0 4px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:12px;
  top:10px;
  bottom:10px;
  width:1px;
  background:linear-gradient(180deg, rgba(43,230,192,.7), rgba(43,230,192,.28) 55%, rgba(43,230,192,.04));
}
.tl-item{
  position:relative;
  padding-left:46px;
  margin-bottom:22px;
}
.tl-item:last-child{margin-bottom:0;}
.tl-dot{
  position:absolute;
  left:5px;
  top:26px;
  width:15px;
  height:15px;
  border-radius:50%;
  background:radial-gradient(circle at 35% 30%, var(--brand-soft), var(--brand) 62%, #10897a);
  box-shadow:0 0 0 4px rgba(43,230,192,.12), 0 0 18px rgba(43,230,192,.55);
  z-index:2;
}
.tl-item.is-off .tl-dot{
  background:radial-gradient(circle at 35% 30%, #9fb0d4, #6e7c9e 70%);
  box-shadow:0 0 0 4px rgba(110,124,158,.14);
}
.tl-card{
  padding:22px;
  border-radius:var(--r-card);
  background:linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  border:1px solid var(--glass-line);
  box-shadow:var(--shadow-card);
  transition:border-color .3s var(--ease), transform .3s var(--ease), background .3s var(--ease);
}
.tl-card:hover{
  border-color:rgba(43,230,192,.28);
  background:linear-gradient(160deg, rgba(43,230,192,.08), rgba(255,255,255,.025));
  transform:translateY(-3px);
}
.tl-top{
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
  margin-bottom:12px;
}
.tl-card h3{
  font-size:18px;
  font-weight:600;
  line-height:1.4;
  margin-bottom:8px;
}
.tl-card p{
  font-size:14px;
  color:var(--ink-2);
  margin-bottom:14px;
}
.tl-meta{
  display:flex;
  flex-wrap:wrap;
  gap:8px 18px;
  font-size:13px;
  color:var(--ink-3);
  padding-top:12px;
  border-top:1px dashed rgba(255,255,255,.1);
  margin-bottom:12px;
}
.tl-meta b{
  font-weight:500;
  color:var(--ink-2);
  font-variant-numeric:tabular-nums;
}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  color:var(--brand);
  transition:gap .3s var(--ease), color .3s var(--ease);
}
.link-arrow:hover{gap:12px;color:var(--brand-soft);}
.tl-item.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s var(--ease), transform .6s var(--ease);}
.tl-item.reveal.in{opacity:1;transform:none;}
@media (min-width:900px){
  .timeline::before{left:50%;}
  .tl-item{
    width:50%;
    padding-left:0;
    padding-right:44px;
    margin-bottom:26px;
  }
  .tl-item:nth-child(even){
    margin-left:50%;
    padding-right:0;
    padding-left:44px;
  }
  .tl-item:nth-child(odd) .tl-dot{left:auto;right:-7px;}
  .tl-item:nth-child(even) .tl-dot{left:-8px;}
}

/* 到账与核对 */
.split{
  display:grid;
  grid-template-columns:1fr;
  gap:32px;
  align-items:center;
}
.split-figure{
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--glass-line);
  box-shadow:var(--shadow-card);
  position:relative;
}
.split-figure img{width:100%;aspect-ratio:16/11;object-fit:cover;filter:saturate(.9) brightness(.88);}
.split-figure::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg, rgba(7,11,22,.06), rgba(7,11,22,.62));
  pointer-events:none;
}
.check-list{display:grid;gap:14px;margin-top:22px;}
.check-item{
  display:flex;
  gap:12px;
  padding:16px 18px;
  border-radius:14px;
  background:linear-gradient(160deg, rgba(255,255,255,.055), rgba(255,255,255,.015));
  border:1px solid var(--line);
  transition:border-color .3s var(--ease), transform .3s var(--ease);
}
.check-item:hover{border-color:rgba(43,230,192,.28);transform:translateY(-2px);}
.check-item .tick{
  flex:0 0 22px;
  width:22px;
  height:22px;
  margin-top:4px;
  border-radius:6px;
  background:rgba(43,230,192,.14);
  color:var(--brand);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:13px;
  font-weight:700;
}
.check-item h3{font-size:16px;font-weight:600;margin-bottom:4px;}
.check-item p{font-size:14px;color:var(--ink-2);}
@media (min-width:900px){ .split{grid-template-columns:5fr 7fr;gap:44px;} }

/* FAQ */
.faq{display:grid;gap:12px;max-width:900px;}
.faq-item{
  border-radius:14px;
  background:linear-gradient(160deg, rgba(255,255,255,.06), rgba(255,255,255,.018));
  border:1px solid var(--glass-line);
  overflow:hidden;
  transition:border-color .3s var(--ease), background .3s var(--ease);
}
.faq-item:hover{border-color:rgba(43,230,192,.22);}
.faq-item.is-open{border-color:rgba(43,230,192,.32);background:linear-gradient(160deg, rgba(43,230,192,.08), rgba(255,255,255,.02));}
.faq-btn{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:56px;
  padding:12px 20px;
  background:transparent;
  border:none;
  color:var(--ink);
  font-size:16px;
  font-weight:500;
  text-align:left;
  cursor:pointer;
  transition:color .3s var(--ease), padding-left .3s var(--ease);
}
.faq-btn:hover{padding-left:24px;}
.faq-btn .icon{
  flex:0 0 20px;
  width:20px;
  height:20px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:var(--ink-3);
  transition:transform .3s var(--ease), color .3s var(--ease);
}
.faq-item.is-open .faq-btn .icon{transform:rotate(180deg);color:var(--brand);}
.faq-panel{
  max-height:0;
  overflow:hidden;
  transition:max-height .32s var(--ease);
}
.faq-panel .inner{
  padding:2px 20px 20px;
  border-left:2px solid var(--brand);
  margin-left:20px;
  padding-left:16px;
  font-size:15px;
  color:var(--ink-2);
  opacity:0;
  transition:opacity .24s var(--ease);
}
.faq-item.is-open .faq-panel .inner{opacity:1;}

/* CTA 通栏 */
.cta-band{
  position:relative;
  overflow:hidden;
  padding:38px 26px;
  border-radius:22px;
  background:linear-gradient(120deg, rgba(43,230,192,.14), rgba(16,26,52,.85) 46%, rgba(255,194,75,.1));
  border:1px solid rgba(43,230,192,.22);
  box-shadow:var(--shadow-card);
  display:flex;
  flex-direction:column;
  gap:22px;
  align-items:flex-start;
}
.cta-band h2{font-size:24px;line-height:1.32;font-weight:700;}
.cta-band p{font-size:15px;color:var(--ink-2);margin-top:10px;max-width:60ch;}
.cta-band .btn{flex-shrink:0;}
@media (min-width:900px){
  .cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:46px 48px;}
  .cta-band h2{font-size:28px;}
}

/* 页脚 */
.site-footer{
  margin-top:64px;
  padding-top:52px;
  position:relative;
  z-index:1;
  background:linear-gradient(180deg, rgba(10,17,40,.5), rgba(7,11,22,.96));
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg, transparent, var(--brand), transparent);
  opacity:.6;
}
.footer-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:32px;
  padding-bottom:40px;
}
.footer-brand p{
  font-size:14px;
  color:var(--ink-2);
  margin-top:16px;
  max-width:34ch;
}
.socials{display:flex;gap:10px;margin-top:18px;}
.socials span{
  width:34px;height:34px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  font-size:13px;
  color:var(--ink-2);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
}
.footer-col h3{
  font-size:15px;
  font-weight:600;
  color:var(--ink);
  margin-bottom:16px;
}
.footer-col ul{display:grid;gap:10px;}
.footer-col a,
.footer-col span{
  font-size:14px;
  color:var(--ink-3);
  transition:color .25s var(--ease), transform .25s var(--ease);
  display:inline-block;
}
.footer-col a:hover{color:var(--brand);transform:translateX(2px);}
.footer-bottom{
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:20px 0 28px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--ink-3);
}
.footer-bottom .legal{display:flex;gap:18px;}
.footer-bottom .legal span{cursor:default;}
@media (min-width:768px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (min-width:1100px){
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
  .footer-bottom{flex-direction:row;align-items:center;justify-content:space-between;}
}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .tl-item.reveal{opacity:1;transform:none;}
}

/* 自定义滚动条 */
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:#070B16;}
::-webkit-scrollbar-thumb{
  background:linear-gradient(180deg, rgba(43,230,192,.5), rgba(43,230,192,.2));
  border-radius:999px;
  border:2px solid #070B16;
}
::-webkit-scrollbar-thumb:hover{background:rgba(43,230,192,.7);}

/* roulang page: category3 */
:root{
  --bg:#080B10;
  --bg-deep:#0A0E14;
  --panel:#11161E;
  --panel-2:#0E131A;
  --brand:#2FD8B6;
  --brand-soft:#8AF0DA;
  --accent:#E8B25C;
  --danger:#FF6B7A;
  --ink:#EDF2F0;
  --ink-2:#A7B4B0;
  --ink-3:#6B7975;
  --line:rgba(140,175,190,.14);
  --line-strong:rgba(255,255,255,.10);
  --radius:14px;
  --radius-lg:20px;
  --radius-pill:999px;
  --shadow:0 22px 60px -28px rgba(0,0,0,.9);
  --ease:cubic-bezier(.22,1,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  min-height:100%;
  background:var(--bg);
  color:var(--ink);
  font-family:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei',system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    radial-gradient(620px 440px at 10% -8%, rgba(47,216,182,.075), transparent 70%),
    radial-gradient(540px 400px at 94% 16%, rgba(232,178,92,.055), transparent 72%),
    linear-gradient(rgba(140,175,190,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(140,175,190,.045) 1px, transparent 1px);
  background-size:auto,auto,64px 64px,64px 64px;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
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;}
::selection{background:rgba(47,216,182,.28);color:#fff;}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:#0A0E14;}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,rgba(47,216,182,.55),rgba(232,178,92,.45));border-radius:999px;border:2px solid #0A0E14;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
main,footer{position:relative;z-index:1;}
.glass{
  background:linear-gradient(160deg, rgba(255,255,255,.062), rgba(255,255,255,.016));
  border:1px solid var(--line-strong);
  backdrop-filter:blur(14px) saturate(130%);
  -webkit-backdrop-filter:blur(14px) saturate(130%);
}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){
  .glass{background:rgba(17,22,30,.92);}
}
.grad-text{
  background:linear-gradient(100deg,var(--brand-soft),var(--brand) 55%,var(--accent));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(8,11,16,.55);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background .3s var(--ease), border-color .3s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(8,11,16,.9);
  border-bottom-color:var(--line);
}
.nav-wrap{
  height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.brand{display:inline-flex;align-items:center;gap:12px;min-height:44px;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;flex:0 0 40px;
  background:linear-gradient(135deg,var(--brand) 8%,#5FE0C4 45%,var(--accent) 100%);
  box-shadow:0 0 0 1px rgba(47,216,182,.35), 0 10px 24px -10px rgba(47,216,182,.55);
  position:relative;
}
.brand-mark::before{
  content:"";position:absolute;inset:11px;border-radius:6px;
  border:2px solid rgba(8,11,16,.62);
}
.brand-mark::after{
  content:"";position:absolute;left:50%;top:50%;width:12px;height:2px;
  background:rgba(8,11,16,.62);transform:translate(-50%,-50%) rotate(-45deg);
}
.brand-text{
  font-size:18px;font-weight:700;letter-spacing:.01em;color:#fff;white-space:nowrap;
}
.nav-desktop{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  height:44px;padding:0 14px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:500;color:var(--ink-2);
  transition:color .3s var(--ease), background .3s var(--ease);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.06);}
.nav-link.is-active{color:#fff;}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:6px;transform:translateX(-50%);
  width:60%;height:2px;border-radius:2px;
  background:linear-gradient(90deg,transparent,var(--brand),transparent);
  box-shadow:0 0 10px rgba(47,216,182,.6);
}
.nav-cta{margin-left:12px;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;line-height:1;
  transition:transform .3s var(--ease), box-shadow .3s var(--ease), background .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(180deg,var(--brand-soft),var(--brand));
  color:#06120F;
  border:1px solid rgba(47,216,182,.6);
  box-shadow:0 0 0 1px rgba(47,216,182,.28), 0 12px 28px -12px rgba(47,216,182,.7);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(47,216,182,.5), 0 18px 34px -12px rgba(47,216,182,.8);}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(47,216,182,.35), 0 8px 18px -12px rgba(47,216,182,.6);}
.btn-ghost{
  background:rgba(255,255,255,.02);
  color:var(--brand-soft);
  border:1px solid rgba(47,216,182,.4);
}
.btn-ghost:hover{background:rgba(47,216,182,.12);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);background:rgba(47,216,182,.08);}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand-soft);
  transition:color .3s var(--ease);
}
.btn-link .arw{transition:transform .3s var(--ease);}
.btn-link:hover{color:#fff;}
.btn-link:hover .arw{transform:translateX(4px);}
.btn:disabled{opacity:.45;box-shadow:none;transform:none;cursor:not-allowed;}

.burger{
  display:none;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  align-items:center;justify-content:center;
}
.burger span,.burger span::before,.burger span::after{
  display:block;width:20px;height:2px;border-radius:2px;background:var(--ink);
  transition:transform .3s var(--ease), opacity .3s var(--ease);
}
.burger span{position:relative;}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;z-index:60;
  background:rgba(4,6,9,.66);
  backdrop-filter:blur(4px);
  opacity:0;transition:opacity .3s var(--ease);
}
.drawer-mask.is-show{opacity:1;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:70;
  width:86vw;max-width:360px;
  padding:18px 18px 24px;
  display:flex;flex-direction:column;gap:16px;
  background:linear-gradient(170deg, rgba(18,24,32,.98), rgba(10,14,20,.98));
  border-left:1px solid var(--line);
  transform:translateX(102%);
  transition:transform .34s var(--ease);
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.03);color:var(--ink);font-size:22px;line-height:1;
  display:flex;align-items:center;justify-content:center;
}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  display:flex;align-items:center;height:52px;padding:0 12px;
  font-size:16px;color:var(--ink-2);
  border-bottom:1px solid var(--line);
  transition:color .3s var(--ease),background .3s var(--ease);
}
.drawer-nav a:hover,.drawer-nav a.is-active{color:#fff;background:rgba(47,216,182,.08);}
.drawer-cta{width:100%;margin-top:auto;}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;position:relative;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.16em;font-weight:600;color:var(--brand);
  padding:6px 12px;border-radius:8px;
  background:rgba(47,216,182,.12);
  border:1px solid rgba(47,216,182,.22);
}
.eyebrow.is-accent{color:var(--accent);background:rgba(232,178,92,.14);border-color:rgba(232,178,92,.26);}
h1{font-size:clamp(32px,5vw,50px);line-height:1.16;font-weight:700;letter-spacing:-.01em;}
h2{font-size:32px;line-height:1.3;font-weight:700;letter-spacing:-.01em;}
h3{font-size:20px;line-height:1.45;font-weight:600;}
.lead{font-size:17px;line-height:1.85;color:var(--ink-2);}
.muted{color:var(--ink-2);}
.tiny{font-size:13px;color:var(--ink-3);}
.frame{position:relative;}
.frame::after{
  content:"";position:absolute;inset:7px;border-radius:12px;
  border:1px dashed rgba(255,255,255,.08);
  pointer-events:none;
}
.divider{
  height:1px;width:100%;
  background:linear-gradient(90deg,transparent,rgba(47,216,182,.45),rgba(232,178,92,.3),transparent);
}

/* ---------- Hero-lite ---------- */
.hero-lite{padding:56px 0 88px;}
.crumbs{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-3);flex-wrap:wrap;}
.crumbs a{color:var(--ink-2);transition:color .3s var(--ease);}
.crumbs a:hover{color:var(--brand-soft);}
.crumbs .sep{opacity:.5;}
.crumbs .now{color:var(--ink-3);}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:44px;
  align-items:center;
  margin-top:28px;
}
.hero-copy h1{margin:18px 0 16px;}
.hero-copy .lead{max-width:56ch;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.stat-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:0;
  margin-top:32px;padding-top:22px;border-top:1px solid var(--line);
}
.stat-item{padding:0 22px;border-left:1px solid var(--line);}
.stat-item:first-child{padding-left:0;border-left:0;}
.stat-num{
  font-family:'Bahnschrift','Space Grotesk',ui-monospace,monospace;
  font-variant-numeric:tabular-nums;
  font-size:24px;font-weight:700;color:var(--brand-soft);line-height:1.2;
}
.stat-label{font-size:13px;color:var(--ink-3);margin-top:2px;}
.hero-visual{position:relative;}
.hero-figure{
  border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow);
  position:relative;
  background:var(--panel-2);
}
.hero-figure img{width:100%;height:auto;object-fit:cover;filter:saturate(1.02);}
.hero-figure::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(8,11,16,.1) 0%, rgba(8,11,16,.55) 100%);
}
.hero-float{
  position:absolute;left:-16px;bottom:-24px;
  width:min(300px,88%);
  padding:16px 18px;
  border-radius:var(--radius);
  background:linear-gradient(160deg, rgba(20,26,34,.96), rgba(11,15,21,.96));
  border:1px solid rgba(47,216,182,.24);
  box-shadow:0 24px 50px -26px rgba(0,0,0,.95);
}
.hero-float .title{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:#fff;}
.dot-live{width:8px;height:8px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px rgba(47,216,182,.16);animation:pulse 2.4s var(--ease) infinite;}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.42;}}
.hero-float ul{margin-top:10px;display:flex;flex-direction:column;gap:7px;}
.hero-float li{display:flex;justify-content:space-between;gap:10px;font-size:13px;color:var(--ink-2);}
.hero-float li b{color:var(--brand-soft);font-weight:600;font-variant-numeric:tabular-nums;}

/* ---------- 三步流程 ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
  position:relative;
}
.step-card{
  position:relative;
  padding:26px 24px 24px;
  border-radius:var(--radius);
  background:linear-gradient(160deg, rgba(255,255,255,.055), rgba(255,255,255,.014));
  border:1px solid var(--line);
  transition:transform .3s var(--ease), border-color .3s var(--ease), background .3s var(--ease);
}
.step-card:hover{transform:translateY(-3px);border-color:rgba(47,216,182,.3);background:linear-gradient(160deg, rgba(47,216,182,.08), rgba(255,255,255,.02));}
.step-no{
  font-family:'Bahnschrift','Space Grotesk',ui-monospace,monospace;
  font-variant-numeric:tabular-nums;
  font-size:44px;line-height:1;font-weight:700;
  color:rgba(47,216,182,.26);
  letter-spacing:-.02em;
}
.step-card h3{margin:14px 0 10px;color:#fff;}
.step-card p{font-size:14.5px;color:var(--ink-2);line-height:1.8;}
.step-meta{margin-top:16px;display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:var(--accent);background:rgba(232,178,92,.12);border:1px solid rgba(232,178,92,.24);padding:4px 10px;border-radius:8px;}

/* ---------- 准备清单 ---------- */
.prep-grid{
  display:grid;grid-template-columns:minmax(0,6fr) minmax(0,6fr);
  gap:40px;align-items:center;
}
.prep-figure{
  border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow);
}
.prep-figure img{width:100%;height:auto;object-fit:cover;}
.prep-list{margin-top:24px;display:flex;flex-direction:column;gap:14px;}
.prep-list li{
  display:flex;gap:14px;align-items:flex-start;
  padding:16px 18px;border-radius:var(--radius);
  background:rgba(255,255,255,.025);
  border:1px solid var(--line);
  transition:border-color .3s var(--ease), background .3s var(--ease), transform .3s var(--ease);
}
.prep-list li:hover{border-color:rgba(47,216,182,.3);background:rgba(47,216,182,.06);transform:translateX(3px);}
.tick{
  flex:0 0 22px;width:22px;height:22px;border-radius:6px;margin-top:3px;
  background:rgba(47,216,182,.14);
  border:1px solid rgba(47,216,182,.4);
  position:relative;
}
.tick::after{
  content:"";position:absolute;left:6px;top:4px;width:7px;height:11px;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(40deg);
}
.prep-list strong{display:block;font-size:15px;font-weight:600;color:#fff;}
.prep-list span{font-size:14px;color:var(--ink-2);line-height:1.75;}

/* ---------- 注意事项 ---------- */
.notice-band{
  padding:32px;border-radius:var(--radius-lg);
  background:linear-gradient(150deg, rgba(232,178,92,.09), rgba(255,255,255,.018));
  border:1px solid rgba(232,178,92,.26);
  position:relative;
  overflow:hidden;
}
.notice-band::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,var(--accent),rgba(232,178,92,.15));
}
.notice-band h3{color:#fff;display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.notice-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.notice-item{font-size:14.5px;color:var(--ink-2);line-height:1.8;padding-left:16px;position:relative;}
.notice-item::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:2px;
  background:var(--accent);
}
.notice-item b{color:var(--ink);font-weight:600;}

/* ---------- 问答网格 ---------- */
.qa-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;align-items:start;
}
.qa-card{
  border-radius:var(--radius);
  background:linear-gradient(160deg, rgba(255,255,255,.055), rgba(255,255,255,.014));
  border:1px solid var(--line);
  transition:border-color .3s var(--ease), background .3s var(--ease), transform .3s var(--ease);
  overflow:hidden;
}
.qa-card:hover{border-color:rgba(47,216,182,.28);background:linear-gradient(160deg, rgba(47,216,182,.07), rgba(255,255,255,.02));}
.qa-card[open]{border-color:rgba(47,216,182,.34);}
.qa-card summary{
  list-style:none;
  display:flex;align-items:flex-start;justify-content:space-between;gap:14px;
  padding:20px 22px;
  font-size:16px;font-weight:600;color:#fff;line-height:1.6;
  cursor:pointer;
  position:relative;
}
.qa-card summary::-webkit-details-marker{display:none;}
.qa-card summary::marker{content:"";}
.qa-card summary .sign{
  flex:0 0 22px;width:22px;height:22px;border-radius:6px;margin-top:2px;
  border:1px solid rgba(47,216,182,.4);
  background:rgba(47,216,182,.1);
  position:relative;
  transition:transform .3s var(--ease);
}
.qa-card summary .sign::before,.qa-card summary .sign::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;
  transform:translate(-50%,-50%);
}
.qa-card summary .sign::before{width:10px;height:2px;}
.qa-card summary .sign::after{width:2px;height:10px;transition:opacity .3s var(--ease);}
.qa-card[open] summary .sign::after{opacity:0;}
.qa-card .answer{
  padding:0 22px 20px 22px;
  font-size:14.5px;line-height:1.85;color:var(--ink-2);
  border-top:1px solid rgba(255,255,255,.05);
  padding-top:16px;
  margin-top:0;
}
.qa-card .answer b{color:var(--brand-soft);font-weight:600;}

/* ---------- CTA ---------- */
.cta-wrap{
  padding:48px 40px;
  border-radius:22px;
  background:
    radial-gradient(560px 280px at 18% 0%, rgba(47,216,182,.16), transparent 70%),
    radial-gradient(480px 260px at 92% 100%, rgba(232,178,92,.12), transparent 72%),
    linear-gradient(160deg, rgba(255,255,255,.06), rgba(255,255,255,.015));
  border:1px solid rgba(47,216,182,.22);
  text-align:center;
  box-shadow:var(--shadow);
}
.cta-wrap h2{margin:16px 0 14px;}
.cta-wrap p{max-width:60ch;margin:0 auto;color:var(--ink-2);font-size:15.5px;}
.cta-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;margin-top:28px;}
.cta-hint{margin-top:18px;font-size:13px;color:var(--ink-3);}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;z-index:1;
  margin-top:40px;
  padding:64px 0 28px;
  background:linear-gradient(180deg, rgba(255,255,255,0) 0%, rgba(6,9,13,.85) 40%);
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,216,182,.7),transparent);
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:36px;
}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--ink-2);line-height:1.8;max-width:32ch;}
.socials{display:flex;gap:10px;margin-top:18px;}
.socials span{
  width:36px;height:36px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;color:var(--ink-2);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  transition:color .3s var(--ease),border-color .3s var(--ease),transform .3s var(--ease);
}
.socials span:hover{color:var(--brand-soft);border-color:rgba(47,216,182,.4);transform:translateY(-2px);}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col li a,.footer-col li span{
  font-size:14px;color:var(--ink-2);
  transition:color .3s var(--ease), transform .3s var(--ease);
  display:inline-block;
}
.footer-col li a:hover{color:var(--brand-soft);transform:translateX(2px);}
.footer-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--ink-3);}
.legal{display:flex;gap:20px;}
.legal span{font-size:13px;color:var(--ink-3);cursor:default;transition:color .3s var(--ease);}
.legal span:hover{color:var(--brand-soft);}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s var(--ease), transform .5s var(--ease);}
.reveal.is-in{opacity:1;transform:translateY(0);}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .nav-desktop{display:none;}
  .burger{display:flex;}
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:56px;}
  .hero-float{position:static;width:100%;margin-top:18px;left:auto;bottom:auto;}
  .prep-grid{grid-template-columns:minmax(0,1fr);gap:32px;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .notice-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .section{padding:72px 0;}
}
@media (max-width:768px){
  h2{font-size:26px;}
  .container{padding:0 20px;}
  .hero-lite{padding:36px 0 64px;}
  .steps{grid-template-columns:minmax(0,1fr);}
  .qa-grid{grid-template-columns:minmax(0,1fr);}
  .notice-grid{grid-template-columns:minmax(0,1fr);}
  .cta-wrap{padding:36px 22px;}
  .stat-item{padding:0 16px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .section{padding:56px 0;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .nav-wrap{height:64px;}
  .brand-mark{width:36px;height:36px;flex-basis:36px;border-radius:10px;}
  .brand-text{font-size:16px;}
  .hero-actions .btn{width:100%;}
  .stat-row{border-top:0;padding-top:0;margin-top:24px;gap:14px;}
  .stat-item{border-left:0;padding:0;width:100%;display:flex;align-items:baseline;gap:10px;}
  .stat-label{margin-top:0;}
  .section{padding:48px 0;}
  .cta-actions .btn{width:100%;}
  .prep-list li{padding:14px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}