/* roulang page: index */
:root{
  --color-bg-deep:#070B0A;
  --color-bg:#0B0F0E;
  --color-surface:#131B19;
  --color-surface-2:#1B2523;
  --color-line:#26302D;
  --color-primary:#C8FF3D;
  --color-primary-dim:#9BD42A;
  --color-accent:#FF8A3D;
  --color-data:#38E8D0;
  --color-text-hi:#EFF6F2;
  --color-text-mid:#A9BAB4;
  --color-text-low:#6E8079;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-card: inset 0 1px 0 rgba(255,255,255,.04), 0 18px 40px -22px rgba(0,0,0,.85);
  --shadow-glow: 0 0 0 1px rgba(200,255,61,.35), 0 0 26px -8px rgba(200,255,61,.42);
  --ease: cubic-bezier(.2,.8,.2,1);
  --dur: 220ms;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--color-bg);
  color:var(--color-text-mid);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit;background:none;border:none}
h1,h2,h3,h4{margin:0;color:var(--color-text-hi);letter-spacing:-0.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums;font-weight:700;letter-spacing:.02em}

/* ---------- 容器与板块 ---------- */
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.wrap-wide{width:100%;max-width:1280px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.wrap,.wrap-wide{padding:0 24px}}
@media(min-width:1280px){.wrap,.wrap-wide{padding:0 32px}}
.section{padding:96px 0;position:relative}
@media(max-width:1024px){.section{padding:72px 0}}
@media(max-width:640px){.section{padding:52px 0}}
.section-alt{background:var(--color-bg-deep);border-top:1px solid var(--color-line);border-bottom:1px solid var(--color-line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:40px}
.section-title{font-size:clamp(24px,3.4vw,34px);font-weight:700;line-height:1.25}
.section-desc{margin-top:10px;font-size:15px;line-height:1.7;color:var(--color-text-low);max-width:640px}
.eyebrow{font-size:12px;letter-spacing:.12em;color:var(--color-primary)}
.rule-line{height:1px;background:linear-gradient(90deg,transparent,rgba(200,255,61,.45),transparent)}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,11,10,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--color-line);
}
.site-header::after{
  content:"";position:absolute;left:30%;right:30%;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(200,255,61,.55),transparent);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:64px}
@media(min-width:1024px){.header-inner{height:72px}}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:32px;height:32px;border-radius:9px;flex-shrink:0;
  background:linear-gradient(135deg,rgba(200,255,61,.22),rgba(56,232,208,.10));
  border:1px solid rgba(200,255,61,.45);
  display:grid;place-items:center;
  box-shadow:0 0 18px -6px rgba(200,255,61,.6);
}
.brand-mark svg{width:18px;height:18px}
.brand-text{font-size:16px;font-weight:700;color:var(--color-text-hi);letter-spacing:.01em;white-space:nowrap}
.brand-text span{color:var(--color-primary)}
.nav-desktop{display:none;align-items:center;gap:4px}
@media(min-width:1024px){.nav-desktop{display:flex}}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 12px;
  font-size:14.5px;color:var(--color-text-mid);border-radius:8px;
  transition:background-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.nav-link:hover{background:rgba(200,255,61,.06);color:var(--color-text-hi)}
.nav-link.is-active{color:var(--color-primary)}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:var(--color-primary);box-shadow:0 0 12px rgba(200,255,61,.75);
}
.header-cta{display:none}
@media(min-width:1024px){.header-cta{display:inline-flex}}
.burger{
  display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:0 10px;border-radius:10px;border:1px solid var(--color-line);
  cursor:pointer;
}
@media(min-width:1024px){.burger{display:none}}
.burger i{display:block;height:2px;background:var(--color-text-hi);border-radius:2px;transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease)}
.burger.open i:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.open i:nth-child(2){opacity:0}
.burger.open i:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 移动端抽屉 */
.drawer{
  position:fixed;inset:0;z-index:70;background:rgba(7,11,10,.99);
  padding:22px 20px 32px;display:none;flex-direction:column;
}
.drawer.open{display:flex}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}
.drawer-close{width:44px;height:44px;border:1px solid var(--color-line);border-radius:10px;color:var(--color-text-hi);font-size:20px;line-height:1;cursor:pointer}
.drawer-nav{display:flex;flex-direction:column;gap:6px}
.drawer-nav a{
  display:flex;align-items:center;min-height:52px;padding-left:14px;
  border-left:3px solid rgba(200,255,61,.18);font-size:16px;color:var(--color-text-mid);
}
.drawer-nav a.is-active{border-left-color:var(--color-primary);color:var(--color-primary);font-weight:600}
.drawer-foot{margin-top:auto;padding-top:24px;border-top:1px solid var(--color-line);display:grid;gap:14px}
.drawer-foot small{font-size:12px;color:var(--color-text-low)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),
             background-color var(--dur) var(--ease),color var(--dur) var(--ease),filter var(--dur) var(--ease);
}
.btn-sm{min-height:42px;padding:0 16px;font-size:14px}
.btn-primary{background:var(--color-primary);color:#0B0F0E}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 0 26px -8px rgba(200,255,61,.55)}
.btn-primary:active{background:var(--color-primary-dim);transform:translateY(1px)}
.btn-ghost{border-color:rgba(200,255,61,.35);color:var(--color-text-hi);background:transparent}
.btn-ghost:hover{background:rgba(200,255,61,.10);color:var(--color-primary)}
.btn-ghost:active{transform:translateY(1px)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--color-primary);font-weight:600;
}
.btn-text svg{width:14px;height:14px;transition:transform var(--dur) var(--ease)}
.btn-text:hover svg{transform:translateX(4px)}

/* ---------- 徽章 / 卡片 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12px;letter-spacing:.12em;
  color:var(--color-primary);background:rgba(200,255,61,.10);border:1px solid rgba(200,255,61,.30);
}
.badge-warm{color:var(--color-accent);background:rgba(255,138,61,.10);border-color:rgba(255,138,61,.35)}
.card{
  background:var(--color-surface);border:1px solid var(--color-line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.card-hover:hover{transform:translateY(-3px);border-color:rgba(200,255,61,.35);box-shadow:var(--shadow-glow)}
.chip{
  display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;font-size:12px;
  color:var(--color-text-mid);border:1px solid var(--color-line);background:rgba(255,255,255,.02);
}

/* ---------- 图片位 ---------- */
.media{
  position:relative;overflow:hidden;border-radius:var(--radius-img);
  border:1px solid rgba(255,255,255,.06);background-color:#0A100F;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.025) 0 2px,transparent 2px 14px);
  display:flex;align-items:center;justify-content:center;
}
.media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.media-label{position:relative;z-index:1;font-size:12px;letter-spacing:.12em;color:var(--color-text-low);padding:6px 12px;border:1px dashed var(--color-line);border-radius:999px;background:rgba(7,11,10,.6)}
.ratio-hero{aspect-ratio:16/10}
.ratio-card{aspect-ratio:4/3}
.ratio-square{aspect-ratio:1/1}

/* ---------- Hero ---------- */
.hero{position:relative;padding:88px 0 96px;overflow:hidden;border-bottom:1px solid var(--color-line)}
.hero-bg{position:absolute;inset:0;pointer-events:none}
.hero-bg::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(96deg,rgba(255,255,255,.02) 0 2px,transparent 2px 14px);
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(560px 380px at 6% 4%,rgba(200,255,61,.07),transparent 70%),
    radial-gradient(520px 360px at 96% 96%,rgba(255,138,61,.05),transparent 70%);
}
.hero-inner{position:relative;z-index:2}
.hero h1{
  font-size:clamp(30px,5vw,52px);font-weight:800;line-height:1.14;letter-spacing:-0.02em;
  margin-top:20px;max-width:15em;
}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.75;color:var(--color-text-mid);max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero-stats{display:flex;flex-wrap:wrap;gap:0;margin-top:36px;border-top:1px solid var(--color-line);padding-top:22px}
.hero-stat{padding-right:28px;margin-right:28px;border-right:1px solid var(--color-line)}
.hero-stat:last-child{border-right:none;margin-right:0;padding-right:0}
.hero-stat b{display:block;font-size:24px;color:var(--color-text-hi)}
.hero-stat span{font-size:12px;letter-spacing:.12em;color:var(--color-text-low)}
.hero-media-wrap{position:relative}
.hero-float{
  position:absolute;left:16px;bottom:16px;max-width:250px;
  background:rgba(7,11,10,.78);border:1px solid var(--color-line);border-radius:12px;
  padding:12px 14px;backdrop-filter:blur(2px);
}
.hero-float b{display:block;color:var(--color-text-hi);font-size:14px;margin-top:8px;line-height:1.5}

/* ---------- 阶梯 ---------- */
.step-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media(min-width:640px){.step-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.step-grid{grid-template-columns:repeat(4,1fr);gap:18px;align-items:start}}
.step-card{position:relative;padding:24px 22px;display:flex;flex-direction:column;gap:14px}
@media(min-width:1024px){
  .step-card:nth-child(1){transform:translateY(0)}
  .step-card:nth-child(2){transform:translateY(14px)}
  .step-card:nth-child(3){transform:translateY(28px)}
  .step-card:nth-child(4){transform:translateY(14px)}
  .step-card:hover{transform:translateY(-4px)}
  .step-card:nth-child(2):hover{transform:translateY(10px)}
  .step-card:nth-child(3):hover{transform:translateY(24px)}
  .step-card:nth-child(4):hover{transform:translateY(10px)}
}
.step-level{font-size:12px;letter-spacing:.12em;color:var(--color-primary)}
.step-card h3{font-size:20px;font-weight:600}
.step-card p{font-size:14px;line-height:1.7;color:var(--color-text-low)}
.step-list{display:grid;gap:10px;font-size:14px;color:var(--color-text-mid)}
.step-list li{display:flex;gap:10px;align-items:flex-start}
.step-list li::before{content:"";width:6px;height:6px;margin-top:9px;background:var(--color-primary);border-radius:1px;flex-shrink:0}
.step-card .btn{margin-top:auto}
.step-connector{display:none}

/* ---------- 分类宫格 ---------- */
.grid-cat{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
@media(min-width:768px){.grid-cat{grid-template-columns:repeat(3,1fr);gap:18px}}
@media(min-width:1280px){.grid-cat{grid-template-columns:repeat(6,1fr)}}
.cat-cell{
  display:flex;flex-direction:column;gap:10px;padding:18px 16px;border-radius:var(--radius-card);
  background:var(--color-surface);border:1px solid var(--color-line);min-height:132px;
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.cat-cell:hover{transform:translateY(-3px);border-color:rgba(200,255,61,.35);box-shadow:var(--shadow-glow)}
.cat-cell svg{width:24px;height:24px;stroke:var(--color-text-mid);transition:stroke var(--dur) var(--ease)}
.cat-cell:hover svg{stroke:var(--color-primary)}
.cat-cell b{color:var(--color-text-hi);font-size:15.5px;font-weight:600}
.cat-cell span{font-size:12px;line-height:1.6;color:var(--color-text-low)}

/* ---------- 对比表 ---------- */
.table-scroll{overflow-x:auto;border:1px solid var(--color-line);border-radius:var(--radius-card);background:var(--color-surface)}
table.cmp{width:100%;border-collapse:separate;border-spacing:0;min-width:760px;font-size:14px}
table.cmp th,table.cmp td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--color-line);line-height:1.6}
table.cmp thead th{background:var(--color-surface-2);color:var(--color-text-hi);font-weight:600;position:sticky;top:0}
table.cmp thead th:first-child{box-shadow:inset 0 2px 0 var(--color-primary)}
table.cmp tbody tr:nth-child(even) td{background:rgba(255,255,255,.02)}
table.cmp tbody tr:hover td{background:rgba(200,255,61,.04)}
table.cmp th:first-child,table.cmp td:first-child{
  position:sticky;left:0;z-index:2;background:var(--color-surface);color:var(--color-text-hi);font-weight:600;min-width:140px;
}
table.cmp tbody tr:nth-child(even) td:first-child{background:#161F1D}
.cmp-col-hot{background:rgba(200,255,61,.05)!important;border-left:1px solid rgba(200,255,61,.4);border-right:1px solid rgba(200,255,61,.4)}
.cmp-head-hot{position:relative}
.cmp-head-hot::after{
  content:"推荐";position:absolute;top:0;right:0;font-size:11px;line-height:1;
  padding:5px 9px;background:var(--color-accent);color:#0B0F0E;font-weight:700;
  border-bottom-left-radius:8px;
}
.yes{color:var(--color-primary);font-weight:700}
.no{color:var(--color-text-low)}
.cell-num{font-variant-numeric:tabular-nums}

/* ---------- 限时条 ---------- */
.ticker{
  position:relative;overflow:hidden;border-radius:var(--radius-card);
  background:var(--color-surface-2);border:1px solid var(--color-line);
  padding:22px 24px 22px 28px;
}
.ticker::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(96deg,rgba(255,255,255,.025) 0 2px,transparent 2px 14px);
}
.ticker::after{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--color-accent)}
.ticker-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px}
.cd{display:flex;align-items:center;gap:8px}
.cd-box{
  min-width:52px;text-align:center;padding:8px 6px;border:1px solid rgba(200,255,61,.35);border-radius:10px;
  background:rgba(7,11,10,.6);
}
.cd-box b{display:block;font-size:20px;color:var(--color-primary);font-variant-numeric:tabular-nums}
.cd-box span{font-size:11px;letter-spacing:.12em;color:var(--color-text-low)}
.cd-sep{color:var(--color-text-low)}
@media(max-width:767px){
  .ticker-inner{flex-direction:column;align-items:stretch;text-align:center}
  .cd{justify-content:center}
}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;gap:18px;grid-template-columns:1fr}
@media(min-width:900px){.news-grid{grid-template-columns:repeat(2,1fr)}}
.news-card{display:grid;grid-template-columns:132px 1fr;gap:16px;padding:16px;align-items:stretch}
@media(min-width:640px){.news-card{grid-template-columns:168px 1fr}}
.news-card h3{font-size:16px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:var(--color-text-hi)}
.news-card:hover h3{color:var(--color-primary)}
.news-card p{font-size:14px;line-height:1.7;color:var(--color-text-low);margin-top:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:auto;padding-top:12px}
.news-arrow{width:16px;height:16px;margin-left:auto;stroke:var(--color-primary);transition:transform var(--dur) var(--ease)}
.news-card:hover .news-arrow{transform:translateX(4px)}
.empty-state{
  display:flex;flex-direction:column;align-items:center;gap:14px;text-align:center;
  padding:56px 24px;border:1px dashed var(--color-line);border-radius:var(--radius-card);background:var(--color-surface);
}
.empty-state svg{width:40px;height:40px;stroke:var(--color-text-low)}

/* ---------- 表单 ---------- */
.form-grid{display:grid;gap:18px}
@media(min-width:640px){.form-grid{grid-template-columns:repeat(2,1fr)}}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:12px;letter-spacing:.08em;color:var(--color-text-low)}
.field label i{color:var(--color-primary);font-style:normal}
.field input,.field select,.field textarea{
  width:100%;min-height:48px;padding:12px 14px;border-radius:var(--radius-btn);
  background:#101716;border:1px solid var(--color-line);color:var(--color-text-hi);
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
  appearance:none;-webkit-appearance:none;
}
.field textarea{min-height:120px;resize:vertical;line-height:1.7}
.field select{
  background-image:linear-gradient(45deg,transparent 50%,var(--color-text-low) 50%),linear-gradient(135deg,var(--color-text-low) 50%,transparent 50%);
  background-position:calc(100% - 20px) 22px,calc(100% - 14px) 22px;
  background-size:6px 6px,6px 6px;background-repeat:no-repeat;
}
.field input::placeholder,.field textarea::placeholder{color:var(--color-text-low)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--color-primary);box-shadow:0 0 18px -6px rgba(200,255,61,.5);
}
.field-full{grid-column:1/-1}
.form-note{font-size:12px;line-height:1.7;color:var(--color-text-low);margin-top:12px}
.form-msg{margin-top:14px;font-size:14px;color:var(--color-primary);min-height:22px}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--color-line)}
.faq-item{border-bottom:1px solid var(--color-line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 4px;text-align:left;font-size:16px;font-weight:600;color:var(--color-text-hi);cursor:pointer;
  transition:color var(--dur) var(--ease);
}
.faq-q:hover{color:var(--color-primary)}
.faq-item.open .faq-q{color:var(--color-primary)}
.faq-icon{position:relative;width:16px;height:16px;flex-shrink:0}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--color-primary);border-radius:2px;
  transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease);
}
.faq-icon::before{left:0;right:0;top:7px;height:2px}
.faq-icon::after{top:0;bottom:0;left:7px;width:2px}
.faq-item.open .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms var(--ease)}
.faq-a p{font-size:15px;line-height:1.8;color:var(--color-text-mid);padding:0 4px 22px}

/* ---------- 底部 CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-card);
  border:1px solid rgba(200,255,61,.28);background:linear-gradient(120deg,#101917,#0B0F0E 65%);
  padding:36px 32px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(420px 220px at 88% 20%,rgba(200,255,61,.12),transparent 70%);
}
.cta-band-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--color-bg-deep);border-top:1px solid var(--color-line);position:relative;padding-top:64px}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(200,255,61,.5),transparent);
}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr;padding-bottom:44px}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}}
.footer-col h4{font-size:12px;letter-spacing:.12em;color:var(--color-primary);font-weight:600;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--color-text-mid);transition:color var(--dur) var(--ease),transform var(--dur) var(--ease);display:inline-block}
.footer-col a:hover{color:var(--color-primary);transform:translateX(2px)}
.footer-desc{font-size:14px;line-height:1.8;color:var(--color-text-low);margin-top:14px;max-width:320px}
.qr{
  width:96px;height:96px;border-radius:12px;border:1px solid var(--color-line);
  background-color:#0A100F;
  background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.05) 0 3px,transparent 3px 9px);
  display:grid;place-items:center;margin-top:18px;font-size:11px;color:var(--color-text-low);text-align:center;padding:8px;
}
.footer-bottom{
  border-top:1px solid var(--color-line);padding:20px 0 28px;
  display:flex;flex-wrap:wrap;gap:10px 20px;justify-content:space-between;align-items:center;
  font-size:12px;color:var(--color-text-low);
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 260ms var(--ease),transform 260ms var(--ease)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* roulang page: article */
:root{
  --color-bg-deep:#070B0A;
  --color-bg:#0B0F0E;
  --color-surface:#131B19;
  --color-surface-2:#1B2523;
  --color-line:#26302D;
  --color-primary:#C8FF3D;
  --color-primary-dim:#9BD42A;
  --color-accent:#FF8A3D;
  --color-data:#38E8D0;
  --text-hi:#EFF6F2;
  --text-mid:#A9BAB4;
  --text-low:#6E8079;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.04), 0 18px 40px -22px rgba(0,0,0,.85);
  --shadow-glow:0 0 0 1px rgba(200,255,61,.35), 0 0 26px -8px rgba(200,255,61,.42);
  --ease:cubic-bezier(.2,.8,.2,1);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--color-bg);
  color:var(--text-mid);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.7;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4,p{margin:0}
::selection{background:rgba(200,255,61,.28);color:#0B0F0E}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--color-primary);color:#0B0F0E;padding:10px 16px;border-radius:0 0 10px 0;z-index:200}
.skip-link:focus{left:0}
:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.wrap-wide{width:100%;max-width:1280px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.wrap,.wrap-wide{padding:0 24px}}
@media (min-width:1280px){.wrap,.wrap-wide{padding:0 32px}}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(7,11,10,.92);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.site-header::after{content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);width:40%;height:1px;background:linear-gradient(90deg,transparent,rgba(200,255,61,.55),transparent)}
.header-inner{display:flex;align-items:center;gap:14px;height:64px}
@media (min-width:1024px){.header-inner{height:72px;gap:20px}}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:34px;height:34px;border-radius:10px;border:1px solid rgba(200,255,61,.35);background:linear-gradient(140deg,rgba(200,255,61,.16),rgba(56,232,208,.06));display:grid;place-items:center;flex:0 0 auto}
.brand-mark svg{width:20px;height:20px}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--text-hi);white-space:nowrap}
.brand-text span{color:var(--color-primary)}
.nav-desktop{display:none;align-items:center;gap:2px;margin-left:auto}
@media (min-width:1024px){.nav-desktop{display:flex}}
.nav-link{position:relative;padding:10px 11px;border-radius:8px;font-size:15px;color:var(--text-mid);white-space:nowrap;transition:color .2s var(--ease),background .2s var(--ease)}
.nav-link:hover{color:var(--text-hi);background:rgba(200,255,61,.06)}
.nav-link::after{content:"";position:absolute;left:11px;right:11px;bottom:3px;height:2px;border-radius:2px;background:var(--color-primary);opacity:0;transform:scaleX(.4);transition:opacity .2s var(--ease),transform .2s var(--ease)}
.nav-link.is-active{color:var(--color-primary)}
.nav-link.is-active::after{opacity:1;transform:scaleX(1);box-shadow:0 0 12px rgba(200,255,61,.7)}
.header-cta{margin-left:14px;display:none}
@media (min-width:768px){.header-cta{display:inline-flex}}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:var(--radius-btn);border:1px solid transparent;font-size:15px;font-weight:600;cursor:pointer;transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-primary{background:var(--color-primary);color:#0B0F0E;box-shadow:0 0 0 1px rgba(200,255,61,.35),0 10px 26px -14px rgba(200,255,61,.7)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(200,255,61,.5),0 0 26px -8px rgba(200,255,61,.55)}
.btn-primary:active{transform:translateY(1px);background:var(--color-primary-dim)}
.btn-ghost{background:transparent;border-color:rgba(200,255,61,.35);color:var(--text-hi)}
.btn-ghost:hover{background:rgba(200,255,61,.10);color:var(--color-primary)}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--color-primary);font-size:14px;font-weight:600}
.btn-text .arrow{transition:transform .22s var(--ease)}
.btn-text:hover .arrow{transform:translateX(4px)}
.burger{display:grid;gap:4px;width:44px;height:44px;margin-left:auto;padding:12px 10px;background:transparent;border:1px solid var(--color-line);border-radius:10px;cursor:pointer}
.burger i{display:block;height:2px;border-radius:2px;background:var(--text-hi)}
@media (min-width:1024px){.burger{display:none}}
@media (max-width:767px){.brand-text{font-size:15.5px}}

/* ---------- drawer ---------- */
.drawer{position:fixed;inset:0;z-index:90;background:rgba(7,11,10,.98);display:flex;flex-direction:column;gap:8px;padding:18px 20px 28px;transform:translateX(102%);transition:transform .28s var(--ease);overflow-y:auto}
.drawer.open{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--color-line)}
.drawer-close{width:44px;height:44px;border-radius:10px;border:1px solid var(--color-line);background:transparent;color:var(--text-hi);font-size:22px;line-height:1;cursor:pointer}
.drawer-nav{display:grid;gap:4px;margin-top:16px}
.drawer-nav a{position:relative;padding:14px 12px 14px 16px;border-left:3px solid rgba(200,255,61,.25);font-size:16px;color:var(--text-mid)}
.drawer-nav a.is-active{border-left-color:var(--color-primary);color:var(--color-primary)}
.drawer-cta{margin-top:20px;width:100%}
.drawer-foot{margin-top:14px;font-size:12px;color:var(--text-low)}

/* ---------- article head ---------- */
.article-head{position:relative;overflow:hidden;border-bottom:1px solid var(--color-line);background-image:linear-gradient(rgba(7,11,10,.90),rgba(11,15,14,.96)),url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center}
.article-head::after{content:"";position:absolute;inset:0;pointer-events:none;background-image:radial-gradient(620px 260px at 10% 0%,rgba(200,255,61,.10),transparent 70%),radial-gradient(520px 240px at 95% 95%,rgba(255,138,61,.08),transparent 70%),repeating-linear-gradient(96deg,rgba(255,255,255,.02) 0 2px,transparent 2px 14px)}
.article-head .wrap{position:relative;z-index:1;padding-top:32px;padding-bottom:32px}
@media (min-width:1024px){.article-head .wrap{padding-top:44px;padding-bottom:40px}}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-low);margin-bottom:18px}
.crumbs a{transition:color .2s var(--ease)}
.crumbs a:hover{color:var(--color-primary)}
.crumbs .sep{color:var(--color-line)}
.crumbs .current{color:var(--text-mid);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:999px;border:1px solid rgba(200,255,61,.30);background:rgba(200,255,61,.10);color:var(--color-primary);font-size:12px;letter-spacing:.12em;font-weight:600}
.article-title{margin:16px 0 18px;font-size:clamp(28px,4.4vw,48px);font-weight:800;line-height:1.18;letter-spacing:-.02em;color:var(--text-hi);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;max-width:880px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:13.5px;color:var(--text-low)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--color-line)}
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;border:1px solid rgba(200,255,61,.30);background:rgba(200,255,61,.10);color:var(--color-primary);font-size:12px;font-weight:600;letter-spacing:.04em}
.badge-accent{border-color:rgba(255,138,61,.35);background:rgba(255,138,61,.12);color:var(--color-accent)}
.num{font-variant-numeric:tabular-nums;letter-spacing:.02em}

/* ---------- layout ---------- */
.article-layout{display:grid;gap:32px;padding:44px 0 64px}
@media (min-width:1024px){.article-layout{grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:44px;padding:56px 0 80px}}
.article-col{min-width:0}

/* ---------- article body ---------- */
.article-body{max-width:780px;color:#D9E4DF;font-size:16px;line-height:1.85;overflow-wrap:anywhere;word-break:break-word}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.1em}
.article-body h2{position:relative;margin:40px 0 16px;padding-left:14px;font-size:clamp(22px,2.5vw,30px);font-weight:700;line-height:1.3;color:var(--text-hi);border-left:3px solid var(--color-primary);letter-spacing:-.01em}
.article-body h3{margin:28px 0 12px;font-size:20px;font-weight:600;line-height:1.4;color:var(--text-hi)}
.article-body h4{margin:22px 0 10px;font-size:17px;font-weight:600;color:var(--text-hi)}
.article-body ul{list-style:none;margin:0 0 1.2em;padding-left:0}
.article-body ul li{position:relative;padding-left:18px;margin-bottom:8px}
.article-body ul li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;background:var(--color-primary);border-radius:1px}
.article-body ol{margin:0 0 1.2em;padding-left:22px}
.article-body ol li{margin-bottom:8px}
.article-body blockquote{margin:24px 0;padding:14px 18px;border-left:3px solid var(--color-primary);border-radius:0 10px 10px 0;background:rgba(200,255,61,.04);color:var(--text-mid)}
.article-body img{margin:20px 0;border-radius:var(--radius-img);border:1px solid rgba(255,255,255,.06)}
.article-body a{color:var(--color-primary);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}
.article-body a:hover{filter:brightness(1.08)}
.article-body strong{color:var(--text-hi);font-weight:600}
.article-body table{display:block;width:100%;margin:22px 0;overflow-x:auto;-webkit-overflow-scrolling:touch;border-collapse:collapse;font-size:14px}
.article-body thead,.article-body tbody{display:table;width:100%;min-width:520px;border-collapse:collapse}
.article-body th{padding:10px 14px;text-align:left;white-space:nowrap;background:var(--color-surface-2);color:var(--text-hi);font-weight:600;border-bottom:1px solid var(--color-line)}
.article-body td{padding:10px 14px;border-bottom:1px solid var(--color-line);color:var(--text-mid)}
.article-body tbody tr:nth-child(even) td{background:rgba(255,255,255,.02)}
.article-body pre{margin:20px 0;padding:16px;border-radius:12px;background:#0A0F0E;border:1px solid var(--color-line);overflow-x:auto;font-size:14px;line-height:1.7}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.94em}
.article-body hr{margin:36px 0;border:0;border-top:1px solid var(--color-line)}
.article-body .lead{font-size:17px;color:var(--text-hi)}

.empty-state{max-width:780px;padding:44px 24px;border:1px dashed var(--color-line);border-radius:var(--radius-card);background:var(--color-surface);text-align:center}
.empty-state .icon{width:48px;height:48px;margin:0 auto 14px;border-radius:12px;border:1px solid rgba(200,255,61,.30);background:rgba(200,255,61,.08);display:grid;place-items:center;color:var(--color-primary);font-size:22px}
.empty-state h3{font-size:18px;color:var(--text-hi);margin-bottom:8px}
.empty-state p{font-size:14px;color:var(--text-low);margin-bottom:18px}

.article-foot{margin-top:36px;padding-top:22px;border-top:1px solid var(--color-line);display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;max-width:780px}

/* ---------- sidebar ---------- */
.article-side{display:grid;gap:18px;align-content:start;min-width:0}
@media (min-width:1024px){.article-side{position:sticky;top:96px}}
.side-card{background:var(--color-surface);border:1px solid var(--color-line);border-radius:var(--radius-card);padding:20px;box-shadow:var(--shadow-card);transition:box-shadow .22s var(--ease),border-color .22s var(--ease)}
.side-card:hover{border-color:rgba(200,255,61,.28)}
.side-title{margin:0 0 14px;font-size:12px;letter-spacing:.12em;font-weight:700;color:var(--color-primary)}
.side-list{list-style:none;display:grid;gap:2px}
.side-list a{position:relative;display:block;padding:9px 0 9px 0;font-size:14.5px;color:var(--text-mid);border-bottom:1px dashed rgba(38,48,45,.9);transition:color .2s var(--ease),padding-left .2s var(--ease)}
.side-list li:last-child a{border-bottom:0}
.side-list a:hover{color:var(--color-primary);padding-left:8px}
.side-desc{font-size:13.5px;line-height:1.7;color:var(--text-low);margin-bottom:16px}
.side-mini{display:grid;gap:12px}
.side-mini a{display:grid;grid-template-columns:64px 1fr;gap:12px;align-items:center}
.side-mini .thumb{aspect-ratio:4/3;border-radius:10px;overflow:hidden;border:1px solid rgba(255,255,255,.06);background:var(--color-surface-2)}
.side-mini img{width:100%;height:100%;object-fit:cover}
.side-mini span{font-size:13.5px;line-height:1.5;color:var(--text-mid);transition:color .2s var(--ease)}
.side-mini a:hover span{color:var(--color-primary)}
.stat-row{display:flex;gap:18px;flex-wrap:wrap}
.stat-row .stat{flex:1 1 88px}
.stat-row .stat b{display:block;font-size:22px;font-weight:700;color:var(--color-primary);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.stat-row .stat span{font-size:12px;color:var(--text-low)}

/* ---------- related ---------- */
.section{padding:64px 0}
@media (min-width:1024px){.section{padding:88px 0}}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:26px}
.section-head h2{font-size:clamp(22px,3vw,32px);font-weight:700;color:var(--text-hi);line-height:1.25;letter-spacing:-.01em}
.section-head p{margin-top:8px;font-size:14.5px;color:var(--text-low)}
.card-grid{display:grid;gap:20px}
@media (min-width:640px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.post-card{display:flex;flex-direction:column;background:var(--color-surface);border:1px solid var(--color-line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease)}
.post-card:hover{transform:translateY(-3px);border-color:rgba(200,255,61,.35);box-shadow:var(--shadow-card),0 0 26px -10px rgba(200,255,61,.42)}
.post-card .thumb{position:relative;aspect-ratio:4/3;background:var(--color-surface-2);overflow:hidden}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.post-card:hover .thumb img{transform:scale(1.04)}
.post-card .body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-card h3{font-size:16.5px;font-weight:600;line-height:1.5;color:var(--text-hi)}
.post-card p{font-size:14px;line-height:1.7;color:var(--text-low);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card .foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--text-low)}

.cta-band{position:relative;overflow:hidden;border-top:1px solid var(--color-line);border-bottom:1px solid var(--color-line);background:var(--color-surface-2)}
.cta-band::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(96deg,rgba(255,255,255,.02) 0 2px,transparent 2px 14px),radial-gradient(520px 200px at 8% 50%,rgba(200,255,61,.12),transparent 72%);pointer-events:none}
.cta-band .wrap{position:relative;z-index:1;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;padding-top:28px;padding-bottom:28px}
.cta-band .bar{position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--color-accent)}
.cta-band h2{font-size:clamp(19px,2.4vw,24px);font-weight:700;color:var(--text-hi)}
.cta-band p{margin-top:6px;font-size:14px;color:var(--text-low)}

/* ---------- footer ---------- */
.site-footer{background:var(--color-bg-deep)}
.site-footer::before{content:"";display:block;height:1px;background:linear-gradient(90deg,transparent,rgba(200,255,61,.55),transparent)}
.footer-grid{display:grid;gap:28px;padding:48px 0 28px}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding:60px 0 32px}}
.footer-col .brand-text{font-size:17px}
.footer-desc{margin:14px 0 16px;font-size:14px;line-height:1.75;color:var(--text-low);max-width:320px}
.footer-col h4{margin:0 0 14px;font-size:12px;letter-spacing:.12em;font-weight:700;color:var(--color-primary)}
.footer-col ul{list-style:none;display:grid;gap:10px}
.footer-col ul a{font-size:14px;color:var(--text-mid);transition:color .2s var(--ease),transform .2s var(--ease);display:inline-block}
.footer-col ul a:hover{color:var(--color-primary);transform:translateX(2px)}
.qr{width:96px;height:96px;border-radius:12px;border:1px dashed var(--color-line);background:var(--color-surface);display:grid;place-items:center;text-align:center;font-size:11.5px;line-height:1.5;color:var(--text-low)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;padding:18px 0 30px;border-top:1px solid var(--color-line);font-size:12px;color:var(--text-low)}

.reveal{opacity:0;transform:translateY(12px)}
.reveal.in{opacity:1;transform:none;transition:opacity .5s var(--ease),transform .5s var(--ease)}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category1 */
:root{
  --bg-deep:#070B0A;
  --bg:#0B0F0E;
  --surface:#131B19;
  --surface-2:#1B2523;
  --line:#26302D;
  --primary:#C8FF3D;
  --primary-dim:#9BD42A;
  --accent:#FF8A3D;
  --data:#38E8D0;
  --text-hi:#EFF6F2;
  --text-mid:#A9BAB4;
  --text-low:#6E8079;
  --input-bg:#101716;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.04), 0 18px 40px -22px rgba(0,0,0,.85);
  --shadow-hover:0 0 0 1px rgba(200,255,61,.35), 0 0 26px -8px rgba(200,255,61,.42);
  --ease:cubic-bezier(.2,.8,.2,1);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body.page-body{
  margin:0;
  background:var(--bg);
  color:var(--text-mid);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul{margin:0;padding:0;list-style:none}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
.wrap-wide{width:100%;max-width:1280px;margin:0 auto;padding-left:20px;padding-right:20px}
@media(min-width:768px){.wrap,.wrap-wide{padding-left:24px;padding-right:24px}}
@media(min-width:1280px){.wrap,.wrap-wide{padding-left:32px;padding-right:32px}}

.section{padding:48px 0}
@media(min-width:768px){.section{padding:64px 0}}
@media(min-width:1024px){.section{padding:96px 0}}
.section-tight{padding:32px 0}
@media(min-width:1024px){.section-tight{padding:48px 0}}

/* ============ 顶栏导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,11,10,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";position:absolute;left:30%;right:30%;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(200,255,61,.55),transparent);
  pointer-events:none;
}
.header-inner{display:flex;align-items:center;gap:14px;height:64px}
@media(min-width:1024px){.header-inner{height:72px;gap:20px}}

.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:32px;height:32px;border-radius:9px;display:flex;align-items:center;justify-content:center;
  background:radial-gradient(120% 120% at 20% 10%,rgba(200,255,61,.18),rgba(200,255,61,0) 70%),var(--surface);
  border:1px solid rgba(200,255,61,.35);
  box-shadow:0 0 18px -8px rgba(200,255,61,.6);
}
.brand-mark svg{width:20px;height:20px}
.brand-text{font-size:17px;font-weight:800;color:var(--text-hi);letter-spacing:-.01em;line-height:1.2;white-space:nowrap}
.brand-text span{color:var(--primary)}

.nav-desktop{display:none;align-items:center;gap:2px;margin-left:auto}
@media(min-width:1024px){.nav-desktop{display:flex}}
.nav-link{
  position:relative;padding:8px 12px;border-radius:8px;font-size:15px;
  color:var(--text-mid);transition:color .2s var(--ease),background .2s var(--ease);
  white-space:nowrap;
}
.nav-link:hover{color:var(--text-hi);background:rgba(200,255,61,.06)}
.nav-link.is-active{color:var(--primary)}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 10px rgba(200,255,61,.7);
}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);border:1px solid transparent;
  padding:12px 20px;font-size:15px;font-weight:600;line-height:1.2;
  cursor:pointer;transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-primary{background:var(--primary);color:#0A0F0C;box-shadow:0 0 22px -12px rgba(200,255,61,.9)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 0 26px -8px rgba(200,255,61,.55)}
.btn-primary:active{transform:translateY(1px);background:var(--primary-dim)}
.btn-ghost{background:transparent;color:var(--text-hi);border-color:rgba(200,255,61,.35)}
.btn-ghost:hover{background:rgba(200,255,61,.10);color:var(--primary)}
.btn-ghost:active{transform:translateY(1px)}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;font-size:15px;
  transition:color .2s var(--ease);
}
.btn-link .arrow{transition:transform .22s var(--ease)}
.btn-link:hover{color:var(--primary-dim)}
.btn-link:hover .arrow{transform:translateX(4px)}
.btn:focus-visible,.nav-link:focus-visible,.footer-col a:focus-visible,.burger:focus-visible{
  outline:2px solid var(--primary);outline-offset:2px;
}
.header-cta{display:none}
@media(min-width:1024px){.header-cta{display:inline-flex}}

.burger{
  margin-left:auto;width:44px;height:44px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;
  background:var(--surface);border:1px solid var(--line);border-radius:10px;cursor:pointer;
}
.burger i{display:block;width:18px;height:2px;background:var(--text-hi);border-radius:2px;transition:transform .22s var(--ease),opacity .22s var(--ease)}
@media(min-width:1024px){.burger{display:none}}

.drawer{
  position:fixed;inset:0;z-index:80;background:var(--bg-deep);
  padding:18px 20px 28px;display:flex;flex-direction:column;gap:8px;
  transform:translateY(-8px);opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s;
  overflow-y:auto;
}
.drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);pointer-events:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--line)}
.drawer-close{
  width:44px;height:44px;border-radius:10px;background:var(--surface);border:1px solid var(--line);
  color:var(--text-hi);font-size:20px;line-height:1;cursor:pointer;
}
.drawer-link{
  display:block;padding:14px 14px;border-left:3px solid transparent;border-radius:0 10px 10px 0;
  color:var(--text-mid);font-size:16px;font-weight:600;
}
.drawer-link:hover{background:rgba(200,255,61,.06);color:var(--text-hi)}
.drawer-link.is-active{border-left-color:var(--primary);color:var(--primary);background:rgba(200,255,61,.07)}
.drawer-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:12px}
.drawer-note{font-size:12px;color:var(--text-low);letter-spacing:.06em}

/* ============ 分类页头 ============ */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(to right,rgba(7,11,10,.94),rgba(7,11,10,.72)),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
}
.page-hero-bg::after{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(6deg,rgba(255,255,255,.02) 0 2px,transparent 2px 16px);
}
.page-hero-inner{position:relative;z-index:2;padding-top:44px;padding-bottom:44px}
@media(min-width:768px){.page-hero-inner{padding-top:56px;padding-bottom:56px}}
@media(min-width:1024px){.page-hero-inner{padding-top:64px;padding-bottom:72px}}

.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-low);margin-bottom:18px}
.crumbs a{color:var(--text-low)}
.crumbs a:hover{color:var(--primary)}
.crumb-now{color:var(--text-mid);max-width:60vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
  font-size:12px;letter-spacing:.12em;color:var(--primary);
  background:rgba(200,255,61,.10);border:1px solid rgba(200,255,61,.30);
}
.page-title{
  margin:18px 0 0;font-size:clamp(30px,5vw,46px);font-weight:800;line-height:1.14;
  letter-spacing:-.02em;color:var(--text-hi);max-width:22em;
}
.page-lead{margin:14px 0 0;font-size:16px;color:var(--text-mid);max-width:44em}
@media(min-width:768px){.page-lead{font-size:17px}}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-meta{display:flex;flex-wrap:wrap;gap:22px;margin-top:30px;padding-top:22px;border-top:1px solid rgba(38,48,45,.85)}
.hero-meta-item{min-width:96px}
.hero-meta-num{font-size:22px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;letter-spacing:.02em;line-height:1.2}
.hero-meta-label{font-size:12px;letter-spacing:.12em;color:var(--text-low);margin-top:4px}

/* ============ 通用标题 / 板块 ============ */
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px}
.section-title{margin:0;font-size:26px;font-weight:700;line-height:1.25;color:var(--text-hi);letter-spacing:-.01em}
@media(min-width:768px){.section-title{font-size:32px}}
.section-sub{margin:10px 0 0;font-size:15px;color:var(--text-mid);max-width:52em}

/* ============ 图文交错 ============ */
.zig-stack{display:flex;flex-direction:column;gap:36px}
@media(min-width:1024px){.zig-stack{gap:56px}}
.zig{display:grid;gap:24px;align-items:center}
@media(min-width:960px){
  .zig{grid-template-columns:5fr 7fr;gap:36px}
  .zig.rev{grid-template-columns:7fr 5fr}
  .zig.rev .zig-media{order:2}
}
.media-frame{
  position:relative;width:100%;aspect-ratio:4/3;border-radius:var(--radius-img);overflow:hidden;
  border:1px solid rgba(255,255,255,.06);
  background-color:#0F1614;
  background-image:repeating-linear-gradient(6deg,rgba(255,255,255,.035) 0 2px,transparent 2px 14px);
  box-shadow:var(--shadow-card);
}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame .media-tag{
  position:absolute;left:14px;bottom:14px;padding:5px 12px;border-radius:999px;font-size:12px;
  color:#0A0F0C;background:var(--primary);font-weight:700;
}
.zig-body .zig-index{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.12em;color:var(--data);
  font-variant-numeric:tabular-nums;
}
.zig-body h3{margin:12px 0 12px;font-size:20px;font-weight:700;line-height:1.4;color:var(--text-hi)}
@media(min-width:768px){.zig-body h3{font-size:22px}}
.zig-body p{margin:0 0 14px}
.tick-list{display:flex;flex-direction:column;gap:10px}
.tick-list li{position:relative;padding-left:18px;font-size:15px;color:var(--text-mid)}
.tick-list li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:1px;background:var(--primary);
}
.go-note{margin-top:16px;padding:12px 16px;border-left:3px solid var(--primary);border-radius:0 10px 10px 0;background:rgba(200,255,61,.05);font-size:14px;color:var(--text-hi)}

/* ============ 检查项卡片 ============ */
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-card);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.card:hover{transform:translateY(-3px);border-color:rgba(200,255,61,.35);box-shadow:var(--shadow-hover)}
.card h3{margin:14px 0 10px;font-size:19px;font-weight:600;line-height:1.4;color:var(--text-hi)}
.card p{margin:0;font-size:14px;line-height:1.75;color:var(--text-mid)}
.card-icon{
  width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:rgba(200,255,61,.10);border:1px solid rgba(200,255,61,.25);color:var(--primary);
}
.card-icon svg{width:20px;height:20px}
.grid-4{display:grid;gap:18px;grid-template-columns:1fr}
@media(min-width:640px){.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.grid-4{grid-template-columns:repeat(4,1fr);gap:20px}}

/* ============ 更新条 ============ */
.update-bar{
  position:relative;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 24px 22px 28px;border:1px solid var(--line);border-left:3px solid var(--accent);
  border-radius:var(--radius-card);background-color:var(--surface-2);
  background-image:repeating-linear-gradient(6deg,rgba(255,255,255,.02) 0 2px,transparent 2px 16px);
  overflow:hidden;
}
.update-bar::after{
  content:"";position:absolute;right:-40px;top:-60px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(56,232,208,.10),transparent 68%);pointer-events:none;
}
.update-copy{position:relative;z-index:2}
.update-copy h3{margin:0 0 6px;font-size:18px;font-weight:700;color:var(--text-hi)}
.update-copy p{margin:0;font-size:14px;color:var(--text-mid)}
.update-time{
  display:flex;align-items:center;gap:8px;font-variant-numeric:tabular-nums;font-weight:700;
  color:var(--primary);letter-spacing:.02em;font-size:18px;
}
.update-time .dot{width:8px;height:8px;border-radius:50%;background:var(--data);box-shadow:0 0 10px rgba(56,232,208,.8)}

/* ============ 场景列表 ============ */
.scene-list{display:grid;gap:14px;grid-template-columns:1fr}
@media(min-width:900px){.scene-list{grid-template-columns:repeat(2,1fr);gap:18px}}
.scene-item{
  position:relative;display:flex;gap:16px;align-items:flex-start;
  padding:20px 22px;border:1px solid var(--line);border-radius:var(--radius-card);background:var(--surface);
  transition:border-color .22s var(--ease),background .22s var(--ease),transform .22s var(--ease);
}
.scene-item::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;border-radius:0 3px 3px 0;
  background:var(--primary);transform:scaleY(.45);transform-origin:top;transition:transform .22s var(--ease);
}
.scene-item:hover{background:var(--surface-2);transform:translateY(-2px);border-color:rgba(200,255,61,.3)}
.scene-item:hover::before{transform:scaleY(1)}
.scene-num{
  flex-shrink:0;font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;
  color:var(--data);letter-spacing:.08em;padding-top:3px;
}
.scene-body h3{margin:0 0 8px;font-size:17px;font-weight:600;color:var(--text-hi)}
.scene-body p{margin:0;font-size:14px;line-height:1.75;color:var(--text-mid)}

/* ============ FAQ ============ */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 4px;font-size:16px;font-weight:600;color:var(--text-hi);
  transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex-shrink:0;font-size:20px;font-weight:400;color:var(--primary);
  transition:transform .22s var(--ease);
}
.faq-item[open] summary{color:var(--primary)}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg)}
.faq-item summary:hover{color:var(--primary)}
.faq-body{padding:0 4px 20px;font-size:15px;line-height:1.8;color:var(--text-mid)}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;overflow:hidden;border:1px solid var(--line);border-radius:18px;
  padding:32px 24px;
  background-color:var(--surface);
  background-image:linear-gradient(120deg,rgba(200,255,61,.09),rgba(11,15,14,0) 55%),repeating-linear-gradient(6deg,rgba(255,255,255,.02) 0 2px,transparent 2px 16px);
}
@media(min-width:768px){.cta-band{padding:44px 40px}}
.cta-band h2{margin:0 0 12px;font-size:24px;font-weight:700;line-height:1.3;color:var(--text-hi)}
@media(min-width:768px){.cta-band h2{font-size:28px}}
.cta-band p{margin:0 0 24px;max-width:52em;color:var(--text-mid)}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.cta-note{margin-top:16px;font-size:12px;color:var(--text-low);letter-spacing:.04em}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;background:var(--bg-deep);border-top:1px solid var(--line);
  margin-top:24px;padding:48px 0 24px;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(200,255,61,.55),transparent);
}
.footer-grid{display:grid;gap:28px;grid-template-columns:1fr}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}}
.footer-col .brand-text{display:block;margin-bottom:14px}
.footer-desc{margin:0 0 18px;font-size:14px;line-height:1.75;color:var(--text-mid);max-width:30em}
.qr{
  width:96px;height:96px;border:1px dashed var(--line);border-radius:12px;
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;line-height:1.5;color:var(--text-low);letter-spacing:.04em;
  background:rgba(255,255,255,.01);
}
.footer-col h4{
  margin:0 0 16px;font-size:12px;letter-spacing:.12em;font-weight:700;color:var(--primary);
}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{display:inline-block;font-size:14px;color:var(--text-mid);transition:color .2s var(--ease),transform .2s var(--ease)}
.footer-col a:hover{color:var(--primary);transform:translateX(2px)}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12px;color:var(--text-low);line-height:1.7;
}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .24s var(--ease),transform .24s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --color-bg-deep:#070B0A;
  --color-bg:#0B0F0E;
  --color-surface:#131B19;
  --color-surface-2:#1B2523;
  --color-line:#26302D;
  --color-primary:#C8FF3D;
  --color-primary-dim:#9BD42A;
  --color-accent:#FF8A3D;
  --color-data:#38E8D0;
  --color-text-hi:#EFF6F2;
  --color-text-mid:#A9BAB4;
  --color-text-low:#6E8079;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.04), 0 18px 40px -22px rgba(0,0,0,.85);
  --ease:cubic-bezier(.2,.8,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--color-bg);
  color:var(--color-text-mid);
  font-size:16px;
  line-height:1.8;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;}
ul{list-style:none;margin:0;padding:0;}
:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(200,255,61,.28);color:#fff;}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
.wrap-wide{width:100%;max-width:1280px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:768px){.wrap,.wrap-wide{padding-left:24px;padding-right:24px;}}
@media (min-width:1280px){.wrap,.wrap-wide{padding-left:32px;padding-right:32px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(7,11,10,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
}
.site-header::after{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,transparent,rgba(200,255,61,.55),transparent);
  background-repeat:no-repeat;background-size:40% 100%;background-position:center;
}
.header-inner{display:flex;align-items:center;gap:14px;height:64px;}
@media (min-width:1024px){.header-inner{height:72px;gap:20px;}}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:32px;height:32px;display:grid;place-items:center;flex:0 0 auto;
  border:1px solid rgba(200,255,61,.35);border-radius:9px;
  background:rgba(200,255,61,.08);
  box-shadow:0 0 18px -6px rgba(200,255,61,.5);
}
.brand-mark svg{width:19px;height:19px;}
.brand-text{font-weight:800;font-size:17px;color:var(--color-text-hi);letter-spacing:-.01em;white-space:nowrap;}
.brand-text span{color:var(--color-primary);}
.nav-desktop{display:none;}
@media (min-width:1024px){
  .nav-desktop{display:flex;align-items:center;gap:2px;flex:1 1 auto;margin-left:6px;}
}
.nav-link{
  position:relative;padding:9px 11px;border-radius:8px;font-size:14.5px;
  color:var(--color-text-mid);white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--color-text-hi);background:rgba(200,255,61,.06);}
.nav-link.is-active{color:var(--color-primary);}
.nav-link.is-active::after{
  content:"";position:absolute;left:11px;right:11px;bottom:2px;height:2px;
  border-radius:2px;background:var(--color-primary);
  box-shadow:0 0 10px rgba(200,255,61,.85);
}
.header-cta{display:none;margin-left:auto;}
@media (min-width:1024px){.header-cta{display:inline-flex;margin-left:8px;}}
.burger{
  margin-left:auto;width:44px;height:44px;padding:0 11px;cursor:pointer;
  display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  background:transparent;border:1px solid var(--color-line);border-radius:10px;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.burger:hover{border-color:rgba(200,255,61,.45);background:rgba(200,255,61,.06);}
.burger i{display:block;height:2px;border-radius:2px;background:var(--color-text-hi);}
@media (min-width:1024px){.burger{display:none;}}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border:1px solid transparent;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;cursor:pointer;white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),filter .2s var(--ease);
}
.btn-primary{background:var(--color-primary);color:#0B0F0E;box-shadow:0 14px 32px -20px rgba(200,255,61,.95);}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(200,255,61,.35),0 0 26px -8px rgba(200,255,61,.42);}
.btn-primary:active{transform:translateY(1px);background:var(--color-primary-dim);}
.btn-ghost{background:transparent;border-color:rgba(200,255,61,.35);color:var(--color-text-hi);}
.btn-ghost:hover{background:rgba(200,255,61,.10);color:var(--color-primary);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--color-primary);
}
.link-more .arw{transition:transform .2s var(--ease);}
.link-more:hover .arw{transform:translateX(4px);}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;padding:20px;
  background:rgba(7,11,10,.98);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  transform:translateX(100%);visibility:hidden;overflow-y:auto;
  transition:transform .26s var(--ease),visibility .26s var(--ease);
}
.drawer.is-open{transform:none;visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:24px;}
.drawer-close{
  width:44px;height:44px;border-radius:10px;border:1px solid var(--color-line);
  background:transparent;color:var(--color-text-hi);font-size:22px;line-height:1;cursor:pointer;
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.drawer-close:hover{border-color:rgba(200,255,61,.5);color:var(--color-primary);}
.drawer-nav a{
  display:block;padding:14px 16px;margin-bottom:8px;font-size:16px;
  color:var(--color-text-mid);background:rgba(255,255,255,.02);
  border-left:3px solid rgba(200,255,61,.18);border-radius:0 10px 10px 0;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.drawer-nav a:hover{color:var(--color-text-hi);background:rgba(200,255,61,.06);}
.drawer-nav a.is-active{
  color:var(--color-primary);border-left-color:var(--color-primary);
  box-shadow:inset 0 0 24px -16px rgba(200,255,61,.95);
}
.drawer-note{margin-top:22px;font-size:12px;color:var(--color-text-low);}

/* ---------- page hero ---------- */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--color-line);}
.page-hero-bg{
  position:absolute;inset:0;background-color:#101716;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
}
.page-hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(7,11,10,.95) 0%,rgba(7,11,10,.78) 52%,rgba(7,11,10,.55) 100%);
}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:1;
  background-image:repeating-linear-gradient(6deg,rgba(255,255,255,.02) 0 2px,transparent 2px 14px);
}
.page-hero-inner{position:relative;z-index:2;padding:56px 0 48px;min-height:260px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--color-text-low);margin-bottom:18px;}
.crumb a{color:var(--color-text-low);transition:color .18s var(--ease);}
.crumb a:hover{color:var(--color-primary);}
.crumb span.current{color:var(--color-text-mid);}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:12px;letter-spacing:.12em;
  color:var(--color-primary);border:1px solid rgba(200,255,61,.30);background:rgba(200,255,61,.10);
}
.page-hero h1{
  margin:20px 0 16px;max-width:820px;
  font-size:clamp(30px,5vw,52px);font-weight:800;line-height:1.14;letter-spacing:-.02em;
  color:var(--color-text-hi);
}
.page-hero h1 em{font-style:normal;color:var(--color-primary);}
.lede{max-width:640px;font-size:16px;line-height:1.8;color:var(--color-text-mid);}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px;}
.tag{
  display:inline-flex;align-items:center;padding:5px 12px;border-radius:999px;font-size:12px;
  color:var(--color-text-mid);border:1px solid var(--color-line);background:rgba(19,27,25,.7);
}

/* ---------- sections ---------- */
.section{padding:48px 0;}
@media (min-width:768px){.section{padding:64px 0;}}
@media (min-width:1024px){.section{padding:96px 0;}}
.section-alt{background:linear-gradient(180deg,rgba(19,27,25,.55),rgba(11,15,14,0));}
.section-head{max-width:760px;margin-bottom:32px;}
.section-head h2{
  margin:14px 0 12px;font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.25;
  letter-spacing:-.01em;color:var(--color-text-hi);
}
.section-head p{margin:0;font-size:15.5px;color:var(--color-text-mid);}
.eyebrow{font-size:12px;letter-spacing:.12em;color:var(--color-primary);}

/* ---------- rhythm strip ---------- */
.rhythm{display:flex;gap:14px;overflow-x:auto;padding:4px 4px 14px;scroll-snap-type:x mandatory;}
.rhythm::-webkit-scrollbar{height:6px;}
.rhythm::-webkit-scrollbar-thumb{background:var(--color-line);border-radius:6px;}
.rhythm-item{
  flex:0 0 auto;min-width:190px;scroll-snap-align:start;
  padding:18px 18px 16px;border-radius:var(--radius-card);
  background:var(--color-surface);border:1px solid var(--color-line);box-shadow:var(--shadow-card);
  transition:border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.rhythm-item:hover{transform:translateY(-3px);border-color:rgba(200,255,61,.42);}
.rhythm-time{
  font-variant-numeric:tabular-nums;font-size:20px;font-weight:800;letter-spacing:.02em;color:var(--color-primary);
}
.rhythm-item h3{margin:8px 0 6px;font-size:16px;font-weight:600;color:var(--color-text-hi);}
.rhythm-item p{margin:0;font-size:13.5px;line-height:1.7;color:var(--color-text-low);}
.rhythm-note{margin-top:6px;font-size:13px;color:var(--color-text-low);}

/* ---------- timeline ---------- */
.timeline{position:relative;padding-left:34px;max-width:880px;}
.timeline::before{
  content:"";position:absolute;left:7px;top:10px;bottom:10px;width:2px;
  background:linear-gradient(180deg,rgba(200,255,61,.75),rgba(200,255,61,.06));
}
.tl-item{position:relative;margin-bottom:24px;}
.tl-item:last-child{margin-bottom:0;}
.tl-node{
  position:absolute;left:-34px;top:20px;width:16px;height:16px;border-radius:50%;
  background:var(--color-bg);border:2px solid var(--color-primary);
  box-shadow:0 0 14px rgba(200,255,61,.6);
}
.tl-card{
  padding:20px 22px;border-radius:var(--radius-card);
  background:var(--color-surface);border:1px solid var(--color-line);box-shadow:var(--shadow-card);
  transition:border-color .22s var(--ease),transform .22s var(--ease);
}
.tl-card:hover{border-color:rgba(200,255,61,.4);transform:translateY(-2px);}
.tl-top{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:8px;}
.tl-num{
  font-variant-numeric:tabular-nums;font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--color-primary);
}
.tl-card h3{margin:0;font-size:18px;font-weight:600;color:var(--color-text-hi);}
.tl-card p{margin:6px 0 0;font-size:15px;line-height:1.8;color:var(--color-text-mid);}
.tl-meta{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:var(--color-data);}

/* ---------- media ---------- */
.media{
  position:relative;overflow:hidden;border-radius:var(--radius-img);
  border:1px solid rgba(255,255,255,.06);background-color:#0F1514;
  background-image:repeating-linear-gradient(6deg,rgba(255,255,255,.03) 0 2px,transparent 2px 14px);
}
.media img{width:100%;height:100%;object-fit:cover;}
.ratio-4x3{aspect-ratio:4/3;}
.ratio-16x10{aspect-ratio:16/10;}

/* ---------- field cards ---------- */
.cards-4{display:grid;gap:20px;grid-template-columns:1fr;}
@media (min-width:640px){.cards-4{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.cards-4{grid-template-columns:repeat(4,1fr);}}
.field-card{
  padding:22px 20px;border-radius:var(--radius-card);
  background:var(--color-surface);border:1px solid var(--color-line);box-shadow:var(--shadow-card);
  transition:border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.field-card:hover{
  transform:translateY(-3px);border-color:rgba(200,255,61,.4);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.05),0 0 0 1px rgba(200,255,61,.35),0 0 26px -8px rgba(200,255,61,.42);
}
.field-ico{
  width:38px;height:38px;border-radius:10px;display:grid;place-items:center;margin-bottom:14px;
  border:1px solid rgba(200,255,61,.28);background:rgba(200,255,61,.08);color:var(--color-primary);
  font-size:15px;font-weight:800;font-variant-numeric:tabular-nums;
}
.field-card h3{margin:0 0 8px;font-size:17px;font-weight:600;color:var(--color-text-hi);}
.field-card p{margin:0;font-size:14.5px;line-height:1.75;color:var(--color-text-mid);}

/* ---------- split block ---------- */
.split{display:grid;gap:28px;align-items:center;grid-template-columns:1fr;margin-top:36px;}
@media (min-width:1024px){.split{grid-template-columns:5fr 7fr;gap:40px;}}
.split h3{margin:0 0 14px;font-size:22px;font-weight:600;color:var(--color-text-hi);}
.check-list{display:grid;gap:12px;}
.check-list li{position:relative;padding-left:20px;font-size:15px;line-height:1.8;color:var(--color-text-mid);}
.check-list li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:2px;
  background:var(--color-primary);box-shadow:0 0 10px rgba(200,255,61,.6);
}

/* ---------- steps ---------- */
.steps{display:grid;gap:18px;grid-template-columns:1fr;}
@media (min-width:640px){.steps{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.steps{grid-template-columns:repeat(4,1fr);}}
.step{
  position:relative;padding:24px 20px;border-radius:var(--radius-card);
  background:var(--color-surface-2);border:1px solid var(--color-line);
  transition:border-color .22s var(--ease),transform .22s var(--ease);
}
.step:hover{border-color:rgba(200,255,61,.42);transform:translateY(-3px);}
.step-num{
  font-variant-numeric:tabular-nums;font-size:26px;font-weight:800;letter-spacing:.02em;
  color:var(--color-primary);line-height:1;
}
.step h3{margin:12px 0 8px;font-size:17px;font-weight:600;color:var(--color-text-hi);}
.step p{margin:0;font-size:14.5px;line-height:1.75;color:var(--color-text-mid);}

/* ---------- faq ---------- */
.faq{border-top:1px solid var(--color-line);max-width:900px;}
.faq-item{border-bottom:1px solid var(--color-line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 0;background:none;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--color-text-hi);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--color-primary);}
.faq-item.is-open .faq-q{color:var(--color-primary);}
.faq-ico{
  position:relative;flex:0 0 auto;width:20px;height:20px;border-radius:6px;
  border:1px solid rgba(200,255,61,.35);background:rgba(200,255,61,.08);
  transition:transform .2s var(--ease);
}
.faq-ico::before,.faq-ico::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--color-primary);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-ico::before{width:10px;height:2px;}
.faq-ico::after{width:2px;height:10px;}
.faq-item.is-open .faq-ico{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease);}
.faq-a p{margin:0 0 20px;font-size:15px;line-height:1.8;color:var(--color-text-mid);}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:18px;
  background:var(--color-surface-2);border:1px solid var(--color-line);
  padding:32px 24px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(6deg,rgba(255,255,255,.02) 0 2px,transparent 2px 14px);
}
.cta-band::after{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--color-accent);
}
.cta-inner{position:relative;display:grid;gap:22px;grid-template-columns:1fr;}
@media (min-width:1024px){.cta-inner{grid-template-columns:7fr 5fr;align-items:center;}}
.cta-inner h2{margin:0 0 10px;font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.3;color:var(--color-text-hi);}
.cta-inner p{margin:0;font-size:15px;color:var(--color-text-mid);}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
@media (min-width:1024px){.cta-actions{justify-content:flex-end;}}

/* ---------- footer ---------- */
.site-footer{position:relative;background:var(--color-bg-deep);margin-top:24px;}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(200,255,61,.6),transparent);
}
.footer-grid{display:grid;gap:30px;grid-template-columns:1fr;padding:48px 0 32px;}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.3fr 1fr 1fr 1fr;gap:36px;}}
.footer-col h4{margin:0 0 14px;font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--color-primary);}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{display:inline-block;font-size:14px;color:var(--color-text-mid);transition:color .18s var(--ease),transform .18s var(--ease);}
.footer-col a:hover{color:var(--color-primary);transform:translateX(2px);}
.footer-desc{margin:14px 0 18px;max-width:300px;font-size:14px;line-height:1.75;color:var(--color-text-low);}
.qr{
  width:96px;height:96px;border-radius:12px;display:grid;place-items:center;text-align:center;
  font-size:12px;line-height:1.5;color:var(--color-text-low);
  border:1px dashed var(--color-line);background:rgba(255,255,255,.02);
}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;
  padding:18px 0 28px;border-top:1px solid var(--color-line);
  font-size:12px;color:var(--color-text-low);
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --color-bg-deep:#070B0A;
  --color-bg:#0B0F0E;
  --color-surface:#131B19;
  --color-surface-2:#1B2523;
  --color-line:#26302D;
  --color-primary:#C8FF3D;
  --color-primary-dim:#9BD42A;
  --color-accent:#FF8A3D;
  --color-data:#38E8D0;
  --color-text-hi:#EFF6F2;
  --color-text-mid:#A9BAB4;
  --color-text-low:#6E8079;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.04),0 18px 40px -22px rgba(0,0,0,.85);
  --shadow-glow:0 0 0 1px rgba(200,255,61,.35),0 0 26px -8px rgba(200,255,61,.42);
  --ease:cubic-bezier(.2,.8,.2,1);
  --font-cn:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--color-bg);
  color:var(--color-text-mid);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
ul{margin:0;padding:0;list-style:none}
p{margin:0}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.wrap-wide{width:100%;max-width:1280px;margin:0 auto;padding:0 20px}
@media(min-width:768px){
  .wrap,.wrap-wide{padding:0 24px}
}
@media(min-width:1280px){
  .wrap,.wrap-wide{padding:0 32px}
}

.skip-link{position:absolute;left:-9999px;top:0;background:var(--color-primary);color:#0B0F0E;padding:10px 16px;border-radius:0 0 10px 0;z-index:200}
.skip-link:focus{left:0}

:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,11,10,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  height:64px;
  display:flex;align-items:center;
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(200,255,61,.55),transparent);
  background-size:40% 100%;
  background-position:center;
  background-repeat:no-repeat;
}
@media(min-width:1024px){.site-header{height:72px}}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--color-surface-2);
  border:1px solid rgba(200,255,61,.3);
  box-shadow:inset 0 0 14px -6px rgba(200,255,61,.5);
}
.brand-mark svg{width:20px;height:20px}
.brand-text{font-size:17px;font-weight:700;color:var(--color-text-hi);letter-spacing:.01em;white-space:nowrap}
.brand-text span{color:var(--color-primary)}
.nav-desktop{display:none}
@media(min-width:1024px){
  .nav-desktop{display:flex;align-items:center;gap:2px}
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:10px 12px;
  font-size:15px;
  color:var(--color-text-mid);
  border-radius:8px;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--color-text-hi);background:rgba(200,255,61,.06)}
.nav-link.is-active{color:var(--color-primary)}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:var(--color-primary);
  box-shadow:0 0 12px rgba(200,255,61,.85),0 0 24px rgba(200,255,61,.45);
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  font-size:15px;font-weight:600;
  cursor:pointer;
  transition:transform .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease),color .2s var(--ease),filter .2s var(--ease);
}
.btn-primary{background:var(--color-primary);color:#0B0F0E}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 0 26px -6px rgba(200,255,61,.55)}
.btn-primary:active{background:var(--color-primary-dim);transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:rgba(200,255,61,.35);color:var(--color-primary)}
.btn-ghost:hover{background:rgba(200,255,61,.10);color:var(--color-primary)}
.btn-sm{height:40px;font-size:14px;padding:0 16px}
.header-cta{display:none}
@media(min-width:1024px){.header-cta{display:inline-flex}}
.burger{
  display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:0 11px;
  background:transparent;border:1px solid var(--color-line);border-radius:10px;cursor:pointer;
  transition:border-color .2s var(--ease);
}
.burger:hover{border-color:rgba(200,255,61,.4)}
.burger i{display:block;height:2px;width:100%;background:var(--color-text-hi);border-radius:2px}
@media(min-width:1024px){.burger{display:none}}

/* ===== 移动端抽屉 ===== */
.drawer{
  position:fixed;inset:0;z-index:90;
  background:var(--color-bg-deep);
  display:flex;flex-direction:column;
  padding:22px 20px 28px;
  transform:translateX(100%);
  transition:transform .26s var(--ease);
  overflow-y:auto;
}
.drawer.is-open{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:18px;border-bottom:1px solid var(--color-line)}
.drawer-close{
  width:44px;height:44px;border-radius:10px;border:1px solid var(--color-line);
  background:transparent;color:var(--color-text-hi);font-size:18px;cursor:pointer;
}
.drawer-nav{margin-top:18px;display:flex;flex-direction:column;gap:4px}
.drawer-nav a{
  display:block;padding:14px 16px;
  font-size:17px;color:var(--color-text-hi);
  border-left:3px solid transparent;
  border-radius:0 10px 10px 0;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.drawer-nav a:hover{background:rgba(200,255,61,.06)}
.drawer-nav a.is-active{border-left-color:var(--color-primary);color:var(--color-primary);background:rgba(200,255,61,.06)}
.drawer-cta{margin-top:22px;width:100%}
.drawer-foot{margin-top:16px;font-size:12px;color:var(--color-text-low);letter-spacing:.06em}
body.drawer-open{overflow:hidden}

/* ===== 通用版式 ===== */
.section{padding:48px 0}
@media(min-width:768px){.section{padding:64px 0}}
@media(min-width:1024px){.section{padding:96px 0}}
.section-head{display:flex;flex-direction:column;gap:14px;margin-bottom:32px}
@media(min-width:768px){
  .section-head{flex-direction:row;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
}
.h1{font-size:clamp(30px,5vw,52px);font-weight:800;line-height:1.14;letter-spacing:-.02em;color:var(--color-text-hi)}
.h2{font-size:28px;font-weight:700;line-height:1.25;color:var(--color-text-hi)}
@media(min-width:768px){.h2{font-size:34px}}
.h3{font-size:20px;font-weight:600;line-height:1.4;color:var(--color-text-hi)}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.12em;color:var(--color-primary);
  padding:5px 12px;border-radius:999px;border:1px solid rgba(200,255,61,.3);
  background:rgba(200,255,61,.08);
}
.section-note{font-size:14px;line-height:1.7;color:var(--color-text-low);max-width:460px}
.lead{font-size:16px;line-height:1.8;color:var(--color-text-mid)}
.divider{height:1px;background:var(--color-line);border:0;margin:0}

/* 进入视口动画 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .45s var(--ease),transform .45s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ===== 分类页头 ===== */
.page-hero{
  position:relative;
  overflow:hidden;
  min-height:280px;
  display:flex;align-items:center;
  padding:56px 0 48px;
  background:var(--color-bg) url('/assets/images/backpic/back-2.png') center/cover no-repeat;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,10,.86),rgba(11,15,14,.76));
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(6deg,rgba(255,255,255,.02) 0 2px,transparent 2px 14px);
}
.hero-inner{position:relative;z-index:1;display:flex;flex-direction:column;gap:18px;max-width:860px}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--color-text-low)}
.breadcrumb a{color:var(--color-text-low);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--color-primary)}
.breadcrumb .current{color:var(--color-text-hi)}
.hero-lead{font-size:16px;line-height:1.8;color:var(--color-text-mid);max-width:620px}
.hero-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--color-text-low);letter-spacing:.06em}
.hero-meta i{width:1px;height:12px;background:var(--color-line);display:inline-block}

/* ===== 数据卡组 ===== */
.stat-grid{display:grid;gap:20px;grid-template-columns:repeat(1,minmax(0,1fr))}
@media(min-width:640px){.stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.stat-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}}
.stat-card{
  position:relative;overflow:hidden;
  background:var(--color-surface);
  border:1px solid var(--color-line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  padding:22px;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.stat-card:hover{transform:translateY(-3px);border-color:rgba(200,255,61,.35);box-shadow:var(--shadow-card),var(--shadow-glow)}
.stat-card::after{
  content:"";position:absolute;right:-36px;top:-36px;width:96px;height:96px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,255,61,.12),transparent 70%);
}
.stat-label{font-size:12px;letter-spacing:.12em;color:var(--color-text-low)}
.stat-value{
  display:block;margin:10px 0 6px;
  font-size:38px;line-height:1.05;font-weight:700;
  color:var(--color-primary);
  font-variant-numeric:tabular-nums;letter-spacing:.02em;
}
.stat-value.is-data{color:var(--color-data)}
.stat-value.is-accent{color:var(--color-accent)}
.stat-unit{font-size:14px;font-weight:600;margin-left:4px;color:var(--color-text-mid)}
.stat-desc{font-size:14px;line-height:1.7;color:var(--color-text-mid)}

/* ===== 对比表 ===== */
.table-shell{
  border:1px solid var(--color-line);
  border-radius:var(--radius-card);
  background:var(--color-surface);
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
table.lines{width:100%;min-width:780px;border-collapse:collapse}
table.lines thead th{
  background:var(--color-surface-2);
  color:var(--color-text-hi);
  font-size:14px;font-weight:600;text-align:left;
  padding:15px 18px;white-space:nowrap;
  border-bottom:2px solid var(--color-primary);
}
table.lines tbody td{
  padding:15px 18px;font-size:14px;line-height:1.6;
  color:var(--color-text-mid);
  border-bottom:1px solid var(--color-line);
  white-space:nowrap;
}
table.lines tbody tr:nth-child(even){background:rgba(255,255,255,.02)}
table.lines tbody tr:last-child td{border-bottom:0}
table.lines tbody tr:hover td{background:rgba(200,255,61,.045)}
table.lines th:first-child,
table.lines td:first-child{
  position:sticky;left:0;z-index:2;
  background:var(--color-surface-2);
  color:var(--color-text-hi);font-weight:600;
  border-right:1px solid var(--color-line);
}
table.lines tbody tr:nth-child(even) td:first-child{background:#18211F}
table.lines tbody tr:hover td:first-child{background:#1D2725}
.num{font-variant-numeric:tabular-nums;letter-spacing:.02em}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600;
  border:1px solid rgba(200,255,61,.3);background:rgba(200,255,61,.1);color:var(--color-primary);
}
.pill.is-data{border-color:rgba(56,232,208,.3);background:rgba(56,232,208,.1);color:var(--color-data)}
.pill.is-dim{border-color:var(--color-line);background:rgba(255,255,255,.03);color:var(--color-text-low)}
.table-foot{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:13px;color:var(--color-text-low);padding:16px 20px;border-top:1px solid var(--color-line)}

/* ===== 长卡（切换要点） ===== */
.line-cards{display:grid;gap:20px;grid-template-columns:repeat(1,minmax(0,1fr))}
@media(min-width:768px){.line-cards{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}}
.line-card{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--color-surface);
  border:1px solid var(--color-line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  padding:16px;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.line-card:hover{transform:translateY(-3px);border-color:rgba(200,255,61,.35);box-shadow:var(--shadow-card),var(--shadow-glow)}
.media{
  position:relative;flex:0 0 124px;
  aspect-ratio:4/3;
  border-radius:var(--radius-img);
  overflow:hidden;
  border:1px solid rgba(255,255,255,.06);
  background:var(--color-bg-deep);
}
.media::before{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(6deg,rgba(255,255,255,.045) 0 2px,transparent 2px 12px);
}
.media img{position:relative;width:100%;height:100%;object-fit:cover}
.media.is-broken img{opacity:0}
.media.is-broken::after{
  content:attr(data-label);
  position:absolute;inset:0;
  display:flex;align-items:center;justify-content:center;
  font-size:12px;letter-spacing:.08em;color:var(--color-text-low);text-align:center;padding:0 8px;
}
.line-card h3{margin-bottom:6px}
.line-card p{font-size:14px;line-height:1.7;color:var(--color-text-mid)}
.line-tag{display:inline-block;margin-bottom:8px;font-size:12px;letter-spacing:.12em;color:var(--color-data)}

/* ===== 建议列表 ===== */
.tip-list{display:grid;gap:14px;grid-template-columns:repeat(1,minmax(0,1fr))}
@media(min-width:768px){.tip-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}}
.tip-item{
  position:relative;
  background:var(--color-surface);
  border:1px solid var(--color-line);
  border-radius:var(--radius-card);
  padding:18px 20px 18px 26px;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.tip-item::before{
  content:"";position:absolute;left:12px;top:24px;width:3px;height:12px;border-radius:2px;
  background:var(--color-primary);box-shadow:0 0 10px rgba(200,255,61,.5);
  transition:height .2s var(--ease);
}
.tip-item:hover{border-color:rgba(200,255,61,.3);background:var(--color-surface-2)}
.tip-item:hover::before{height:20px}
.tip-item strong{display:block;font-size:16px;font-weight:600;color:var(--color-text-hi);margin-bottom:4px}
.tip-item span{font-size:14px;line-height:1.7;color:var(--color-text-mid)}

/* ===== 提示条带 ===== */
.notice-strip{
  position:relative;overflow:hidden;
  margin-top:26px;
  display:flex;flex-direction:column;gap:16px;
  background:var(--color-surface-2);
  border-radius:var(--radius-card);
  border:1px solid var(--color-line);
  border-left:3px solid var(--color-accent);
  padding:22px 24px;
}
.notice-strip::after{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(6deg,rgba(255,255,255,.022) 0 2px,transparent 2px 14px);
  pointer-events:none;
}
.notice-strip>*{position:relative;z-index:1}
@media(min-width:768px){
  .notice-strip{flex-direction:row;align-items:center;justify-content:space-between;gap:24px}
}
.notice-title{font-size:17px;font-weight:600;color:var(--color-text-hi)}
.notice-text{font-size:14px;color:var(--color-text-mid);margin-top:4px}
.countdown{display:flex;align-items:center;gap:8px}
.countdown b{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:44px;height:40px;padding:0 8px;
  border-radius:10px;border:1px solid rgba(255,138,61,.45);
  background:rgba(255,138,61,.08);
  color:var(--color-accent);font-size:18px;font-weight:700;
  font-variant-numeric:tabular-nums;
}
.countdown span{font-size:12px;letter-spacing:.12em;color:var(--color-text-low)}

/* ===== FAQ ===== */
.faq-list{border-top:1px solid var(--color-line)}
.faq-item{border-bottom:1px solid var(--color-line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;background:none;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--color-text-hi);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--color-primary)}
.faq-q .sign{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;
  border:1px solid var(--color-line);color:var(--color-text-mid);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;line-height:1;
  transition:transform .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.faq-item.is-open .faq-q{color:var(--color-primary)}
.faq-item.is-open .sign{transform:rotate(45deg);color:var(--color-primary);border-color:rgba(200,255,61,.45)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s var(--ease)}
.faq-a p{padding:0 0 20px;font-size:15px;line-height:1.8;color:var(--color-text-mid);max-width:820px}

/* ===== CTA ===== */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,rgba(200,255,61,.08),rgba(255,138,61,.05)),var(--color-surface);
  border:1px solid var(--color-line);
  border-radius:18px;
  padding:36px 24px;
  text-align:center;
  box-shadow:var(--shadow-card);
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(6deg,rgba(255,255,255,.02) 0 2px,transparent 2px 14px);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;gap:18px;max-width:720px;margin:0 auto}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.cta-lines{display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:center;font-size:13px;color:var(--color-text-low)}
.back-home{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--color-primary)}
.back-home i{transition:transform .2s var(--ease)}
.back-home:hover i{transform:translateX(4px)}

/* ===== 页脚 ===== */
.site-footer{
  background:var(--color-bg-deep);
  position:relative;
  padding:56px 0 28px;
  margin-top:24px;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(200,255,61,.55),transparent);
}
.footer-grid{display:grid;gap:32px;grid-template-columns:repeat(2,minmax(0,1fr))}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}}
.footer-col{display:flex;flex-direction:column;gap:12px}
.footer-col:first-child{grid-column:1 / -1}
@media(min-width:1024px){.footer-col:first-child{grid-column:auto}}
.footer-col h4{font-size:12px;letter-spacing:.12em;color:var(--color-primary);font-weight:600;margin:0}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li a{font-size:14px;color:var(--color-text-mid);transition:color .2s var(--ease),transform .2s var(--ease);display:inline-block}
.footer-col li a:hover{color:var(--color-primary);transform:translateX(2px)}
.footer-desc{font-size:14px;line-height:1.7;color:var(--color-text-mid);max-width:340px}
.qr{
  width:96px;height:96px;border-radius:12px;
  border:1px solid var(--color-line);
  background:var(--color-surface);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;line-height:1.6;color:var(--color-text-low);
  letter-spacing:.06em;
}
.footer-bottom{
  margin-top:36px;padding-top:18px;
  border-top:1px solid var(--color-line);
  display:flex;flex-direction:column;gap:8px;
  font-size:12px;color:var(--color-text-low);line-height:1.7;
}
@media(min-width:768px){
  .footer-bottom{flex-direction:row;align-items:center;justify-content:space-between;gap:20px}
}

@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

.reveal{opacity:1;transform:none}

/* roulang page: category4 */
:root{
  --color-bg-deep:#070B0A;
  --color-bg:#0B0F0E;
  --color-surface:#131B19;
  --color-surface-2:#1B2523;
  --color-line:#26302D;
  --color-primary:#C8FF3D;
  --color-primary-dim:#9BD42A;
  --color-accent:#FF8A3D;
  --color-data:#38E8D0;
  --color-text-hi:#EFF6F2;
  --color-text-mid:#A9BAB4;
  --color-text-low:#6E8079;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.04),0 18px 40px -22px rgba(0,0,0,.85);
  --shadow-hover:inset 0 1px 0 rgba(255,255,255,.04),0 0 0 1px rgba(200,255,61,.35),0 0 26px -8px rgba(200,255,61,.42);
  --ease:cubic-bezier(.2,.8,.2,1);
  --pad-x:20px;
}
@media (min-width:768px){ :root{ --pad-x:24px; } }
@media (min-width:1280px){ :root{ --pad-x:32px; } }

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--color-bg);
  color:var(--color-text-mid);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease),transform .22s var(--ease)}
img{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px;border-radius:6px}

.wrap{max-width:1200px;margin:0 auto;padding:0 var(--pad-x)}
.wrap-wide{max-width:1280px;margin:0 auto;padding:0 var(--pad-x)}

/* ============ 顶栏 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,11,10,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--color-line);
}
.site-header::after{
  content:"";position:absolute;bottom:-1px;left:50%;transform:translateX(-50%);
  width:40%;height:1px;background:linear-gradient(90deg,transparent,rgba(200,255,61,.55),transparent);
  pointer-events:none;
}
.header-inner{display:flex;align-items:center;gap:14px;height:64px}
@media (min-width:1024px){ .header-inner{height:72px} }

.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;display:grid;place-items:center;
  border:1px solid rgba(200,255,61,.35);border-radius:10px;
  background:radial-gradient(circle at 30% 20%,rgba(200,255,61,.16),transparent 70%),#0F1514;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.05);
}
.brand-mark svg{width:20px;height:20px;display:block}
.brand-text{font-size:17px;font-weight:800;color:var(--color-text-hi);letter-spacing:-.01em;white-space:nowrap}
.brand-text span{color:var(--color-primary)}

.nav-desktop{display:none}
@media (min-width:1024px){ .nav-desktop{display:flex;align-items:center;gap:2px;margin-left:auto} }
.nav-link{
  position:relative;display:inline-flex;align-items:center;padding:10px 12px;
  font-size:14.5px;color:var(--color-text-mid);border-radius:8px;white-space:nowrap;
  transition:background .22s var(--ease),color .22s var(--ease);
}
.nav-link:hover{background:rgba(200,255,61,.06);color:var(--color-text-hi)}
.nav-link.is-active{color:var(--color-primary)}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;
  background:var(--color-primary);box-shadow:0 0 10px rgba(200,255,61,.7);
}

.header-cta{display:none}
@media (min-width:1024px){ .header-cta{display:inline-flex;margin-left:10px} }

.burger{
  margin-left:auto;width:44px;height:44px;flex:0 0 44px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  border:1px solid var(--color-line);border-radius:10px;background:var(--color-surface);cursor:pointer;
  transition:border-color .22s var(--ease),background .22s var(--ease);
}
.burger:hover{border-color:rgba(200,255,61,.4);background:var(--color-surface-2)}
.burger i{display:block;width:18px;height:2px;border-radius:2px;background:var(--color-text-hi)}
@media (min-width:1024px){ .burger{display:none} }

/* ============ 抽屉 ============ */
.drawer{
  position:fixed;inset:0;z-index:90;display:flex;flex-direction:column;
  background:var(--color-bg-deep);padding:18px var(--pad-x) 28px;overflow-y:auto;
  transform:translateX(100%);transition:transform .26s var(--ease);
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;height:56px}
.drawer-close{
  width:44px;height:44px;display:grid;place-items:center;border-radius:10px;
  border:1px solid var(--color-line);background:var(--color-surface);color:var(--color-text-hi);
  font-size:20px;line-height:1;cursor:pointer;
}
.drawer-close:hover{border-color:rgba(200,255,61,.4);color:var(--color-primary)}
.drawer-nav{display:flex;flex-direction:column;margin-top:20px;border-top:1px solid var(--color-line)}
.drawer-nav a{
  padding:16px 14px;font-size:16px;color:var(--color-text-mid);
  border-left:3px solid transparent;border-bottom:1px solid var(--color-line);
}
.drawer-nav a:hover{color:var(--color-text-hi);background:rgba(200,255,61,.05)}
.drawer-nav a.is-active{color:var(--color-primary);border-left-color:var(--color-primary);background:rgba(200,255,61,.06)}
.drawer-foot{margin-top:auto;padding-top:22px;font-size:12px;color:var(--color-text-low)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn-primary{
  background:var(--color-primary);color:#0B0F0E;
  box-shadow:0 0 0 1px rgba(200,255,61,.25),0 14px 30px -18px rgba(200,255,61,.6);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(200,255,61,.5),0 0 26px -8px rgba(200,255,61,.7)}
.btn-primary:active{transform:translateY(1px);background:var(--color-primary-dim)}
.btn-ghost{background:transparent;border-color:rgba(200,255,61,.35);color:var(--color-primary)}
.btn-ghost:hover{background:rgba(200,255,61,.10);color:var(--color-primary)}
.btn-sm{padding:9px 16px;font-size:14px}

.more-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--color-primary)}
.more-link span{transition:transform .2s var(--ease)}
.more-link:hover span{transform:translateX(4px)}

/* ============ 分类页头 ============ */
.cat-hero{
  position:relative;overflow:hidden;
  min-height:280px;display:flex;align-items:flex-end;
  padding:44px 0 38px;
  background-image:linear-gradient(100deg,rgba(7,11,10,.94) 0%,rgba(7,11,10,.80) 52%,rgba(7,11,10,.62) 100%),url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center;
}
@media (min-width:1024px){ .cat-hero{min-height:320px;padding:56px 0 48px} }
.cat-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(115deg,rgba(255,255,255,.02) 0 2px,transparent 2px 14px);
}
.cat-hero::after{
  content:"";position:absolute;bottom:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(200,255,61,.45),transparent);
}
.cat-hero .wrap-wide{position:relative;z-index:2;width:100%}

.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--color-text-low);margin-bottom:14px}
.crumb a:hover{color:var(--color-primary)}
.crumb .crumb-now{color:var(--color-text-mid)}

.badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
  border:1px solid rgba(200,255,61,.30);background:rgba(200,255,61,.10);
  color:var(--color-primary);font-size:12px;letter-spacing:.12em;
}
.cat-h1{
  margin:16px 0 0;max-width:18em;
  font-size:clamp(30px,5vw,52px);font-weight:800;line-height:1.14;letter-spacing:-.02em;
  color:var(--color-text-hi);
}
.cat-sub{margin:14px 0 0;max-width:620px;font-size:16px;line-height:1.75;color:var(--color-text-mid)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.hero-stats{display:flex;flex-wrap:wrap;margin-top:28px;padding-top:18px;border-top:1px solid rgba(255,255,255,.08)}
.stat{padding-right:22px;margin-right:22px;border-right:1px solid var(--color-line);margin-bottom:10px}
.stat:last-child{border-right:0;margin-right:0;padding-right:0}
.stat-num{font-size:22px;font-weight:700;color:var(--color-text-hi);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.stat-num em{font-style:normal;color:var(--color-primary)}
.stat-label{font-size:12px;letter-spacing:.08em;color:var(--color-text-low);margin-top:2px}

/* ============ 区块 ============ */
.section{padding:64px 0}
@media (min-width:768px){ .section{padding:80px 0} }
@media (min-width:1024px){ .section{padding:96px 0} }
.section-alt{background:linear-gradient(180deg,rgba(255,255,255,.016),transparent)}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px}
.sec-title{margin:0;font-size:clamp(24px,3vw,32px);font-weight:700;line-height:1.25;letter-spacing:-.01em;color:var(--color-text-hi)}
.sec-desc{margin:10px 0 0;max-width:640px;font-size:15px;line-height:1.75;color:var(--color-text-mid)}

/* ============ 热榜横向滚动 ============ */
.rank-scroll{
  display:flex;gap:16px;overflow-x:auto;padding-bottom:14px;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
}
.rank-scroll::-webkit-scrollbar{height:6px}
.rank-scroll::-webkit-scrollbar-thumb{background:var(--color-line);border-radius:999px}
.rank-card{
  flex:0 0 236px;scroll-snap-align:start;
  background:var(--color-surface);border:1px solid var(--color-line);border-radius:var(--radius-card);
  padding:20px;box-shadow:var(--shadow-card);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.rank-card:hover{transform:translateY(-3px);border-color:rgba(200,255,61,.35);box-shadow:var(--shadow-hover)}
.rank-num{display:block;font-size:26px;font-weight:700;letter-spacing:.02em;font-variant-numeric:tabular-nums;color:var(--color-primary)}
.rank-card h3{margin:12px 0 6px;font-size:16px;font-weight:600;color:var(--color-text-hi)}
.rank-card p{margin:0;font-size:13.5px;line-height:1.7;color:var(--color-text-mid)}
.rank-meta{display:block;margin-top:12px;font-size:12px;letter-spacing:.08em;color:var(--color-text-low)}

/* ============ 筛选标签 ============ */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.filter-btn{
  padding:8px 16px;border-radius:999px;border:1px solid var(--color-line);
  background:var(--color-surface);color:var(--color-text-mid);font-size:14px;cursor:pointer;
  transition:border-color .22s var(--ease),background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.filter-btn:hover{color:var(--color-text-hi);border-color:rgba(200,255,61,.3);transform:translateY(-1px)}
.filter-bar .filter-btn.is-on{
  border-color:rgba(200,255,61,.5);background:rgba(200,255,61,.10);color:var(--color-primary);
}

/* ============ 宫格卡片墙 ============ */
.tile-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:640px){ .tile-grid{grid-template-columns:repeat(2,minmax(0,1fr))} }
@media (min-width:1024px){ .tile-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px} }

.tile{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--color-surface);border:1px solid var(--color-line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.tile:hover{transform:translateY(-3px);border-color:rgba(200,255,61,.35);box-shadow:var(--shadow-hover)}
.tile-media{
  position:relative;aspect-ratio:1/1;overflow:hidden;
  border-bottom:1px solid var(--color-line);
  background-color:#0F1514;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.03) 0 2px,transparent 2px 14px);
}
.media-fallback{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-size:12px;letter-spacing:.1em;color:var(--color-text-low);text-align:center;padding:0 12px;
}
.tile-media img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  transition:transform .32s var(--ease);
}
.tile:hover .tile-media img{transform:scale(1.04)}
.tile-tag{
  position:absolute;top:12px;left:12px;z-index:3;
  padding:4px 10px;border-radius:999px;font-size:12px;letter-spacing:.06em;
  background:rgba(7,11,10,.82);border:1px solid rgba(200,255,61,.30);color:var(--color-primary);
}
.tile-body{display:flex;flex-direction:column;gap:8px;padding:18px 20px 20px;flex:1}
.tile-title{margin:0;font-size:17px;font-weight:600;line-height:1.4;color:var(--color-text-hi)}
.tile-desc{margin:0;flex:1;font-size:14px;line-height:1.7;color:var(--color-text-mid)}
.tile-foot{display:flex;align-items:center;gap:10px;margin-top:4px;font-size:12px;letter-spacing:.06em;color:var(--color-text-low)}
.tile-foot .arrow{margin-left:auto;color:var(--color-primary);transition:transform .22s var(--ease)}
.tile:hover .tile-foot .arrow{transform:translateX(4px)}

/* ============ 字段说明 ============ */
.field-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:768px){ .field-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px} }
.panel{
  background:var(--color-surface);border:1px solid var(--color-line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-card);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.panel:hover{transform:translateY(-3px);border-color:rgba(200,255,61,.3);box-shadow:var(--shadow-hover)}
.panel h3{display:flex;align-items:center;gap:10px;margin:0 0 14px;font-size:19px;font-weight:600;color:var(--color-text-hi)}
.panel h3 .dot{width:8px;height:8px;flex:0 0 8px;border-radius:2px;background:var(--color-primary);box-shadow:0 0 10px rgba(200,255,61,.8)}
.spec-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.spec-list li{position:relative;padding-left:16px;font-size:14.5px;line-height:1.7;color:var(--color-text-mid)}
.spec-list li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:1px;background:var(--color-primary)}

/* ============ 更新节奏列表 ============ */
.upd-list{display:flex;flex-direction:column;gap:12px}
.upd-row{
  display:grid;grid-template-columns:1fr;gap:6px;
  padding:16px 18px;border:1px solid var(--color-line);border-left:3px solid transparent;
  border-radius:12px;background:var(--color-surface);
  transition:border-color .22s var(--ease),background .22s var(--ease),transform .22s var(--ease);
}
@media (min-width:768px){
  .upd-row{grid-template-columns:200px 150px 1fr;align-items:center;gap:18px}
}
.upd-row:hover{border-left-color:var(--color-primary);background:var(--color-surface-2);transform:translateX(2px)}
.upd-name{font-size:15px;font-weight:600;color:var(--color-text-hi)}
.upd-freq{font-size:13px;color:var(--color-primary);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.upd-note{font-size:14px;line-height:1.7;color:var(--color-text-mid)}

/* ============ FAQ ============ */
.faq-list{border-top:1px solid var(--color-line)}
.faq-item{border-bottom:1px solid var(--color-line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 4px;background:none;border:0;text-align:left;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--color-text-hi);
  transition:color .22s var(--ease);
}
.faq-q:hover{color:var(--color-primary)}
.faq-item.is-open .faq-q{color:var(--color-primary)}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 16px;transition:transform .22s var(--ease)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:currentColor;border-radius:2px}
.faq-icon::before{left:0;top:7px;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px}
.faq-item.is-open .faq-icon{transform:rotate(90deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s var(--ease)}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a p{margin:0;padding:0 4px 20px;font-size:15px;line-height:1.8;color:var(--color-text-mid)}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;overflow:hidden;
  display:flex;flex-direction:column;align-items:flex-start;gap:18px;
  padding:26px 24px;border:1px solid var(--color-line);border-left:3px solid var(--color-accent);
  border-radius:var(--radius-card);background:var(--color-surface-2);
}
@media (min-width:768px){
  .cta-band{flex-direction:row;align-items:center;justify-content:space-between;gap:28px;padding:28px 32px}
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(115deg,rgba(255,255,255,.02) 0 2px,transparent 2px 14px);
}
.cta-band > *{position:relative;z-index:2}
.cta-title{margin:0;font-size:clamp(20px,2.4vw,26px);font-weight:700;line-height:1.3;color:var(--color-text-hi)}
.cta-band p{margin:8px 0 0;max-width:680px;font-size:14.5px;line-height:1.75;color:var(--color-text-mid)}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;margin-top:0;padding:56px 0 24px;
  background:var(--color-bg-deep);border-top:1px solid var(--color-line);
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(200,255,61,.5),transparent);
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:640px){ .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))} }
@media (min-width:1024px){ .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px} }
.footer-col h4{margin:0 0 14px;font-size:12px;font-weight:600;letter-spacing:.12em;color:var(--color-primary)}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-col a{display:inline-block;font-size:14px;color:var(--color-text-mid)}
.footer-col a:hover{color:var(--color-primary);transform:translateX(2px)}
.footer-desc{margin:12px 0 16px;max-width:320px;font-size:14px;line-height:1.75;color:var(--color-text-mid)}
.qr{
  width:96px;height:96px;display:flex;align-items:center;justify-content:center;text-align:center;
  border:1px dashed var(--color-line);border-radius:12px;
  background:linear-gradient(135deg,#0F1514,#131B19);
  font-size:12px;line-height:1.5;color:var(--color-text-low);
}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  margin-top:40px;padding-top:20px;border-top:1px solid var(--color-line);
  font-size:12px;color:var(--color-text-low);
}

/* ============ 动效 ============ */
.js .reveal{opacity:0;transform:translateY(12px);transition:opacity .26s var(--ease),transform .26s var(--ease)}
.js .reveal.is-in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important}
  .js .reveal{opacity:1;transform:none}
}

/* roulang page: category5 */
:root{
  --color-bg-deep:#070B0A;
  --color-bg:#0B0F0E;
  --color-surface:#131B19;
  --color-surface-2:#1B2523;
  --color-line:#26302D;
  --color-primary:#C8FF3D;
  --color-primary-dim:#9BD42A;
  --color-accent:#FF8A3D;
  --color-data:#38E8D0;
  --color-text-hi:#EFF6F2;
  --color-text-mid:#A9BAB4;
  --color-text-low:#6E8079;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.04),0 18px 40px -22px rgba(0,0,0,.85);
  --shadow-hover:inset 0 1px 0 rgba(255,255,255,.05),0 22px 44px -22px rgba(0,0,0,.9),0 0 0 1px rgba(200,255,61,.35),0 0 26px -8px rgba(200,255,61,.42);
  --ease:cubic-bezier(.2,.8,.2,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body.page{margin:0;padding:0;background:var(--color-bg);color:var(--color-text-mid);font-family:var(--font);font-size:16px;line-height:1.8;min-height:100vh;overflow-x:hidden;-webkit-font-smoothing:antialiased}
.page img{max-width:100%;display:block}
.page a{color:inherit;text-decoration:none}
.page button{font-family:inherit}
.page ul{padding:0;margin:0;list-style:none}
.page p{margin:0}
:where(.page a,.page button,.page input,.page select,.page textarea):focus-visible{outline:2px solid var(--color-primary);outline-offset:2px;border-radius:8px}

.wrap,.wrap-wide{width:100%;margin:0 auto;padding-left:20px;padding-right:20px}
.wrap{max-width:1200px}
.wrap-wide{max-width:1280px}
@media (min-width:768px){.wrap,.wrap-wide{padding-left:24px;padding-right:24px}}
@media (min-width:1280px){.wrap,.wrap-wide{padding-left:32px;padding-right:32px}}

/* ---------- 顶栏 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(7,11,10,.92);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--color-line)}
.site-header::after{content:"";position:absolute;left:50%;bottom:-1px;transform:translateX(-50%);width:40%;height:1px;background:linear-gradient(90deg,transparent,rgba(200,255,61,.55),transparent);pointer-events:none}
.header-inner{display:flex;align-items:center;gap:14px;height:64px}
@media (min-width:1024px){.header-inner{height:72px;gap:18px}}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:34px;height:34px;border-radius:10px;border:1px solid rgba(200,255,61,.35);background:rgba(200,255,61,.06);display:grid;place-items:center}
.brand-mark svg{width:20px;height:20px}
.brand-text{font-size:16px;font-weight:800;letter-spacing:.01em;color:var(--color-text-hi);white-space:nowrap}
.brand-text span{color:var(--color-primary)}
@media (min-width:1024px){.brand-text{font-size:17px}}
.nav-desktop{display:none}
@media (min-width:1024px){.nav-desktop{display:flex;align-items:center;gap:4px;margin-left:auto}}
.nav-link{position:relative;display:inline-flex;align-items:center;height:40px;padding:0 12px;border-radius:10px;font-size:14.5px;color:var(--color-text-mid);transition:background-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease)}
.nav-link:hover{background:rgba(200,255,61,.06);color:var(--color-text-hi)}
.nav-link.is-active{color:var(--color-primary)}
.nav-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;background:var(--color-primary);box-shadow:0 0 10px rgba(200,255,61,.7)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border:1px solid transparent;border-radius:var(--radius-btn);font-size:15px;font-weight:700;letter-spacing:.01em;cursor:pointer;transition:background-color .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease)}
.btn-primary{background:linear-gradient(180deg,var(--color-primary),var(--color-primary-dim));color:#0B0F0E;box-shadow:0 10px 26px -14px rgba(200,255,61,.8)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(200,255,61,.4),0 0 26px -8px rgba(200,255,61,.6)}
.btn-primary:active{transform:translateY(1px);background:linear-gradient(180deg,var(--color-primary-dim),#82b321)}
.btn-ghost{background:transparent;border-color:rgba(200,255,61,.35);color:var(--color-primary)}
.btn-ghost:hover{background:rgba(200,255,61,.10);color:var(--color-primary)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.header-cta{display:none}
@media (min-width:1024px){.header-cta{display:inline-flex;flex:0 0 auto}}

/* ---------- 汉堡与抽屉 ---------- */
.burger{display:flex;flex-direction:column;justify-content:center;gap:5px;margin-left:auto;width:44px;height:44px;padding:0 10px;background:transparent;border:1px solid var(--color-line);border-radius:10px;cursor:pointer}
.burger i{display:block;height:2px;border-radius:2px;background:var(--color-text-hi);transition:transform .2s var(--ease),background-color .2s var(--ease)}
.burger:hover i{background:var(--color-primary)}
@media (min-width:1024px){.burger{display:none}}
.drawer{position:fixed;inset:0;z-index:80;background:var(--color-bg);display:flex;flex-direction:column;padding:20px;transform:translateX(100%);transition:transform .26s var(--ease);visibility:hidden}
.drawer.is-open{transform:translateX(0);visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--color-line)}
.drawer-close{width:44px;height:44px;border-radius:10px;border:1px solid var(--color-line);background:transparent;color:var(--color-text-hi);font-size:22px;line-height:1;cursor:pointer}
.drawer-close:hover{color:var(--color-primary);border-color:rgba(200,255,61,.35)}
.drawer-nav{display:flex;flex-direction:column;margin-top:12px;overflow-y:auto}
.drawer-nav a{display:flex;align-items:center;min-height:52px;padding:0 14px;border-left:3px solid transparent;font-size:16px;color:var(--color-text-mid);transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease)}
.drawer-nav a:hover{color:var(--color-text-hi);background:rgba(200,255,61,.06)}
.drawer-nav a.is-active{color:var(--color-primary);border-left-color:var(--color-primary);box-shadow:inset 12px 0 24px -22px rgba(200,255,61,.9)}
.drawer-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--color-line);display:flex;flex-direction:column;gap:12px}
.drawer-foot .btn{width:100%}
.drawer-foot p{margin:0;font-size:12px;color:var(--color-text-low);line-height:1.7}

/* ---------- 分类页头 ---------- */
.page-hero{position:relative;overflow:hidden;background-color:var(--color-bg-deep);background-image:linear-gradient(100deg,rgba(7,11,10,.95) 0%,rgba(7,11,10,.76) 52%,rgba(7,11,10,.48) 100%),var(--hero-img);background-size:cover;background-position:center;padding:48px 0 52px;border-bottom:1px solid var(--color-line)}
.page-hero::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(96deg,rgba(255,255,255,.02) 0 2px,transparent 2px 14px);pointer-events:none}
.page-hero::after{content:"";position:absolute;left:-6%;top:-20%;width:46%;height:130%;background:radial-gradient(closest-side,rgba(200,255,61,.09),transparent 72%);pointer-events:none}
.page-hero .wrap{position:relative;z-index:1}
@media (min-width:768px){.page-hero{padding:64px 0 68px}}
@media (min-width:1024px){.page-hero{padding:72px 0 80px}}
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--color-text-low);margin-bottom:20px}
.crumb a{transition:color .2s var(--ease)}
.crumb a:hover{color:var(--color-primary)}
.crumb .sep{opacity:.45}
.crumb .now{color:var(--color-text-mid)}
.h1{font-size:clamp(28px,4.6vw,46px);font-weight:800;line-height:1.14;letter-spacing:-.02em;color:var(--color-text-hi);margin:0 0 16px;max-width:880px}
.hero-sub{font-size:16px;line-height:1.8;color:var(--color-text-mid);max-width:660px;margin:0 0 26px}
@media (min-width:768px){.hero-sub{font-size:17px}}
.stat-row{display:flex;flex-wrap:wrap;gap:18px 28px;padding-top:22px;border-top:1px solid var(--color-line);max-width:760px}
.stat b{display:block;font-size:22px;font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:.02em;color:var(--color-primary)}
.stat span{display:block;font-size:12px;letter-spacing:.12em;color:var(--color-text-low)}

/* ---------- 通用板块 ---------- */
.section{padding:52px 0}
@media (min-width:768px){.section{padding:68px 0}}
@media (min-width:1024px){.section{padding:96px 0}}
.section-tight{padding:36px 0}
@media (min-width:1024px){.section-tight{padding:44px 0}}
.section-head{max-width:760px;margin-bottom:32px}
@media (min-width:1024px){.section-head{margin-bottom:40px}}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:5px 12px;margin-bottom:14px;border:1px solid rgba(200,255,61,.30);border-radius:999px;background:rgba(200,255,61,.10);font-size:12px;letter-spacing:.12em;color:var(--color-primary)}
.h2{font-size:clamp(23px,3vw,34px);font-weight:700;line-height:1.25;color:var(--color-text-hi);margin:0 0 12px}
.h3{font-size:19px;font-weight:600;line-height:1.4;color:var(--color-text-hi);margin:0 0 8px}
.lead{font-size:15px;line-height:1.8;color:var(--color-text-mid);margin:0}

/* ---------- 更新条 ---------- */
.ticker{position:relative;overflow:hidden;display:flex;flex-direction:column;gap:14px;padding:18px 20px;border:1px solid var(--color-line);border-left:3px solid var(--color-accent);border-radius:var(--radius-card);background:var(--color-surface-2)}
.ticker::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(96deg,rgba(255,255,255,.02) 0 2px,transparent 2px 14px);pointer-events:none}
.ticker>*{position:relative;z-index:1}
@media (min-width:900px){.ticker{flex-direction:row;align-items:center;justify-content:space-between;gap:24px;min-height:96px}}
.ticker-text{display:flex;align-items:center;gap:14px;font-size:15px;color:var(--color-text-mid)}
.ticker-mark{flex:0 0 auto;width:10px;height:10px;border-radius:999px;background:var(--color-accent);box-shadow:0 0 14px rgba(255,138,61,.75)}
.ticker strong{color:var(--color-text-hi);font-weight:600}

/* ---------- 通用卡片 ---------- */
.card{position:relative;background:var(--color-surface);border:1px solid var(--color-line);border-radius:var(--radius-card);box-shadow:var(--shadow-card);padding:24px;transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease)}
.card:hover{transform:translateY(-3px);border-color:rgba(200,255,61,.35);box-shadow:var(--shadow-hover)}
.card-icon{width:44px;height:44px;border-radius:12px;border:1px solid rgba(200,255,61,.30);background:rgba(200,255,61,.08);display:grid;place-items:center;color:var(--color-primary);margin-bottom:18px}
.card-icon svg{width:22px;height:22px}
.grid-2{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:768px){.grid-2{grid-template-columns:repeat(2,1fr);gap:24px}}
.point-list{margin-top:16px;display:flex;flex-direction:column;gap:10px}
.point-list li{position:relative;padding-left:16px;font-size:14.5px;line-height:1.75;color:var(--color-text-mid)}
.point-list li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:1px;background:var(--color-primary)}

/* ---------- 图片位 ---------- */
.media{position:relative;overflow:hidden;border-radius:var(--radius-img);border:1px solid rgba(255,255,255,.06);background:#0D1413;background-image:repeating-linear-gradient(96deg,rgba(255,255,255,.035) 0 2px,transparent 2px 14px)}
.media img{position:relative;z-index:1;width:100%;height:100%;object-fit:cover}
.media img.is-broken{display:none}
.media-fallback{position:absolute;inset:0;z-index:0;display:grid;place-items:center;font-size:12px;letter-spacing:.12em;color:var(--color-text-low);text-align:center;padding:8px}
.ratio-43{aspect-ratio:4/3}
.ratio-169{aspect-ratio:16/10}

/* ---------- 标签筛选 ---------- */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px}
.chip{display:inline-flex;align-items:center;height:38px;padding:0 16px;border:1px solid var(--color-line);border-radius:999px;background:transparent;font-size:14px;color:var(--color-text-mid);cursor:pointer;transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease),box-shadow .2s var(--ease)}
.chip:hover{color:var(--color-text-hi);background:rgba(200,255,61,.06);border-color:rgba(200,255,61,.3)}
.chip.is-on{color:var(--color-primary);background:rgba(200,255,61,.12);border-color:rgba(200,255,61,.5);box-shadow:0 0 18px -8px rgba(200,255,61,.7)}

/* ---------- FAQ ---------- */
.faq-panel{border:1px solid var(--color-line);border-radius:var(--radius-card);background:var(--color-surface);box-shadow:var(--shadow-card);padding:6px 22px;overflow:hidden}
@media (min-width:768px){.faq-panel{padding:6px 28px}}
.faq-item{border-bottom:1px solid var(--color-line)}
.faq-item:last-child{border-bottom:0}
.faq-q{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;width:100%;padding:20px 2px;background:transparent;border:0;text-align:left;font-size:16px;font-weight:600;line-height:1.6;color:var(--color-text-hi);cursor:pointer;transition:color .2s var(--ease)}
.faq-q:hover{color:var(--color-primary)}
.faq-item.is-open .faq-q{color:var(--color-primary)}
.faq-icon{position:relative;flex:0 0 20px;width:20px;height:20px;margin-top:.35em;color:currentColor}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease)}
.faq-icon::before{width:14px;height:2px;transform:translate(-50%,-50%)}
.faq-icon::after{width:2px;height:14px;transform:translate(-50%,-50%)}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-a{overflow:visible}
.js .faq-a{max-height:0;overflow:hidden;transition:max-height .26s var(--ease)}
.faq-a-inner{padding:0 2px 22px;font-size:15px;line-height:1.85;color:var(--color-text-mid);max-width:820px}
.faq-a-inner p+p{margin-top:10px}
.faq-empty{display:none;flex-direction:column;align-items:center;gap:10px;padding:40px 20px;border:1px dashed var(--color-line);border-radius:var(--radius-card);text-align:center;color:var(--color-text-low);font-size:14px}
.faq-empty svg{width:26px;height:26px;color:var(--color-primary)}

/* ---------- 表单 ---------- */
.form-grid{display:grid;grid-template-columns:1fr;gap:28px}
@media (min-width:1024px){.form-grid{grid-template-columns:5fr 7fr;gap:48px;align-items:start}}
.consult-list{margin-top:18px;display:flex;flex-direction:column;gap:12px}
.consult-list li{display:flex;gap:12px;font-size:14.5px;line-height:1.75;color:var(--color-text-mid)}
.consult-list li span{flex:0 0 auto;color:var(--color-primary);font-weight:700}
.consult-card{background:var(--color-surface);border:1px solid var(--color-line);border-radius:var(--radius-card);box-shadow:var(--shadow-card);padding:24px}
@media (min-width:768px){.consult-card{padding:30px}}
.form-row{display:grid;grid-template-columns:1fr;gap:18px;margin-bottom:18px}
@media (min-width:640px){.form-row.two{grid-template-columns:1fr 1fr}}
.field label{display:block;margin-bottom:8px;font-size:12px;letter-spacing:.08em;color:var(--color-text-low)}
.field .req{color:var(--color-primary);margin-left:4px}
.field input,.field select,.field textarea{width:100%;background:#101716;border:1px solid var(--color-line);border-radius:var(--radius-btn);color:var(--color-text-hi);font-family:inherit;font-size:15px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease)}
.field input,.field select{height:48px;padding:0 14px}
.field textarea{min-height:126px;padding:12px 14px;line-height:1.75;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--color-text-low)}
.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='14' height='9' viewBox='0 0 14 9'%3E%3Cpath d='M1 1l6 6 6-6' fill='none' stroke='%23A9BAB4' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:40px}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--color-primary);box-shadow:0 0 18px -6px rgba(200,255,61,.5);outline:none}
.form-submit{width:100%;height:50px;margin-top:4px}
.form-note{margin-top:12px;font-size:12px;line-height:1.7;color:var(--color-text-low)}
.form-ok{display:none;align-items:center;gap:10px;margin-top:16px;padding:14px 16px;border:1px solid rgba(200,255,61,.3);border-radius:var(--radius-btn);background:rgba(200,255,61,.08);font-size:14px;color:var(--color-primary)}
.form-ok svg{width:18px;height:18px;flex:0 0 18px}

/* ---------- CTA 带 ---------- */
.cta-band{position:relative;overflow:hidden;display:flex;flex-direction:column;gap:18px;padding:26px 22px;border:1px solid var(--color-line);border-left:3px solid var(--color-accent);border-radius:var(--radius-card);background:var(--color-surface-2)}
.cta-band::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(96deg,rgba(255,255,255,.02) 0 2px,transparent 2px 14px);pointer-events:none}
.cta-band>*{position:relative;z-index:1}
@media (min-width:900px){.cta-band{flex-direction:row;align-items:center;justify-content:space-between;gap:32px;padding:32px 36px}}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--color-bg-deep);border-top:1px solid var(--color-line);padding:56px 0 24px;margin-top:8px}
.site-footer::before{content:"";position:absolute;left:50%;top:-1px;transform:translateX(-50%);width:60%;height:1px;background:linear-gradient(90deg,transparent,rgba(200,255,61,.5),transparent)}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}}
.footer-desc{margin:14px 0 18px;font-size:14px;line-height:1.75;color:var(--color-text-mid);max-width:320px}
.footer-col h4{margin:0 0 16px;font-size:12px;letter-spacing:.12em;color:var(--color-primary);font-weight:600}
.footer-col li+li{margin-top:10px}
.footer-col li a{display:inline-block;font-size:14px;color:var(--color-text-mid);transition:color .2s var(--ease),transform .2s var(--ease)}
.footer-col li a:hover{color:var(--color-primary);transform:translateX(2px)}
.qr{width:96px;height:96px;border:1px dashed var(--color-line);border-radius:10px;display:grid;place-items:center;text-align:center;font-size:12px;line-height:1.6;color:var(--color-text-low);background:rgba(255,255,255,.015)}
.footer-bottom{margin-top:40px;padding-top:20px;border-top:1px solid var(--color-line);display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;font-size:12px;line-height:1.7;color:var(--color-text-low)}

/* ---------- 进入视口 ---------- */
.js .reveal{opacity:0;transform:translateY(12px);transition:opacity .24s var(--ease),transform .24s var(--ease)}
.js .reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .js .reveal{opacity:1;transform:none;transition:none}
  .btn,.card,.chip,.faq-q,.faq-icon::before,.faq-icon::after,.nav-link,.drawer,.footer-col li a{transition:none}
  .card:hover{transform:none}
}