/* roulang page: index */
:root{
  --ink-900:#0B0F10;
  --ink-800:#12181A;
  --ink-700:#1A2325;
  --ink-600:#2A3538;
  --ball:#C9F53C;
  --ball-deep:#A8DC16;
  --signal:#25E3C0;
  --flare:#FF5A2B;
  --paper:#F6F8F3;
  --paper-2:#E8EDE3;
  --text-hi:#F2F7F3;
  --text-mid:#A6B3AE;
  --radius-card:16px;
  --radius-img:12px;
  --radius-input:10px;
  --shadow-dark:0 18px 40px -22px rgba(0,0,0,.85);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text-hi);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--signal);outline-offset:3px;border-radius:6px}
::selection{background:rgba(201,245,60,.28);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#0B0F10}
::-webkit-scrollbar-thumb{background:var(--ink-600);border-radius:999px}
::-webkit-scrollbar-thumb:hover{background:var(--ball)}

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

/* ---------- 顶部导航 ---------- */
.site-head{
  position:sticky;top:0;z-index:80;
  background:rgba(11,15,16,.92);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--ink-600);
}
.site-head::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,var(--ball),transparent);
  opacity:.65;pointer-events:none;
}
.head-inner{display:flex;align-items:center;gap:22px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;border-radius:50%;
  border:1.5px solid var(--ball);
  display:grid;place-items:center;color:var(--ball);
  box-shadow:0 0 14px rgba(201,245,60,.28);
  flex-shrink:0;
}
.brand-mark svg{width:20px;height:20px}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:15px;font-weight:700;letter-spacing:.02em;color:var(--text-hi)}
.brand-text em{font-style:normal;font-size:11.5px;letter-spacing:.2em;color:var(--ball)}
.nav-desktop{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;padding:8px 14px;border-radius:999px;
  font-size:14.5px;color:var(--text-mid);
  transition:color .25s,background .25s,box-shadow .25s;
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:2px;width:0;height:2px;
  background:var(--ball);border-radius:2px;
  transform:translateX(-50%);transition:width .25s;
}
.nav-link:hover{color:var(--text-hi)}
.nav-link:hover::after{width:8px}
.nav-link.is-active{
  background:rgba(201,245,60,.12);color:var(--ball);
  box-shadow:0 0 12px rgba(201,245,60,.25);
}
.nav-link.is-active::after{display:none}
.head-cta{flex-shrink:0}
.nav-toggle{
  display:none;width:44px;height:44px;margin-left:auto;
  place-items:center;background:transparent;
  border:1px solid var(--ink-600);border-radius:12px;
  color:var(--text-hi);cursor:pointer;
  transition:border-color .25s,color .25s;
}
.nav-toggle:hover{border-color:var(--ball);color:var(--ball)}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;margin:3px 0}
.drawer{
  position:fixed;left:0;right:0;top:68px;bottom:0;z-index:70;
  background:var(--ink-900);
  padding:8px 20px 28px;
  display:none;flex-direction:column;
  overflow-y:auto;
}
.drawer.is-open{display:flex}
.drawer a{
  display:flex;align-items:center;justify-content:space-between;
  height:48px;font-size:15px;color:var(--text-mid);
  border-bottom:1px solid var(--ink-700);
  transition:color .2s,padding-left .2s;
}
.drawer a:hover,.drawer a.is-active{color:var(--ball);padding-left:6px}
.drawer a::after{content:"›";font-size:18px;opacity:.6}
.drawer .btn{margin-top:22px;width:100%}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:999px;
  padding:11px 22px;font-size:14.5px;font-weight:600;line-height:1.2;
  cursor:pointer;white-space:nowrap;
  transition:transform .2s,background .2s,box-shadow .2s,border-color .2s,color .2s;
}
.btn-primary{background:var(--ball);color:#0B0F10}
.btn-primary:hover{background:#D7FF5A;transform:translateY(-2px);box-shadow:0 12px 28px -12px rgba(201,245,60,.65)}
.btn-primary:active{transform:translateY(0);background:var(--ball-deep)}
.btn-outline{background:transparent;border-color:var(--ball);color:var(--ball)}
.btn-outline:hover{background:rgba(201,245,60,.1);transform:translateY(-2px)}
.btn-outline:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--text-hi);padding:11px 4px}
.btn-ghost span{transition:transform .2s}
.btn-ghost:hover span{transform:translateX(4px)}
.btn-ghost:hover{color:var(--ball)}
.btn-sm{padding:8px 16px;font-size:13.5px}

/* ---------- 标签 / 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;line-height:1.6;padding:3px 10px;border-radius:6px;
  background:var(--ink-800);border:1px solid var(--ink-600);
  color:var(--text-mid);
}
.live-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;border-radius:999px;
  font-size:12.5px;letter-spacing:.05em;
  color:var(--signal);
  background:rgba(37,227,192,.08);
  border:1px solid rgba(37,227,192,.35);
}
.dot{
  width:8px;height:8px;border-radius:50%;background:var(--signal);
  display:inline-block;flex-shrink:0;
  animation:breathe 1.8s ease-in-out infinite;
}
@keyframes breathe{
  0%,100%{opacity:1;box-shadow:0 0 0 0 rgba(37,227,192,.55)}
  50%{opacity:.45;box-shadow:0 0 0 6px rgba(37,227,192,0)}
}
.flare-tag{
  display:inline-flex;align-items:center;
  background:var(--flare);color:#fff;
  font-size:12px;font-weight:700;letter-spacing:.08em;
  padding:4px 12px;border-radius:6px;
}

/* ---------- 首屏 ---------- */
.hero{position:relative;overflow:hidden;padding:76px 0 84px;background:var(--ink-900)}
.hero-bg{
  position:absolute;inset:0;z-index:0;
  background-size:cover;background-position:center;
  opacity:.42;
}
.hero-veil{
  position:absolute;inset:0;z-index:1;
  background:
    linear-gradient(105deg,rgba(11,15,16,.97) 30%,rgba(11,15,16,.86) 56%,rgba(11,15,16,.5) 100%),
    radial-gradient(900px 420px at 82% 12%,rgba(201,245,60,.12),transparent 70%);
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:center;
}
.hero h1{
  font-size:clamp(30px,4.3vw,50px);
  line-height:1.16;font-weight:800;letter-spacing:-.01em;
  margin-top:18px;
}
.hero h1 .hl{color:var(--ball)}
.hero-sub{
  margin-top:20px;max-width:600px;
  font-size:16.5px;line-height:1.85;color:var(--text-mid);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:12px;margin-top:34px;max-width:540px;
}
.stat{
  background:rgba(26,35,37,.75);
  border:1px solid var(--ink-600);
  border-radius:12px;padding:12px 14px;
  transition:border-color .25s,transform .25s;
}
.stat:hover{border-color:rgba(201,245,60,.45);transform:translateY(-2px)}
.stat b{
  display:block;font-size:17px;font-weight:700;color:var(--ball);
  font-variant-numeric:tabular-nums;letter-spacing:.01em;
}
.stat span{font-size:12.5px;color:var(--text-mid);line-height:1.5}

.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius-card);
  border:1px solid var(--ink-600);
  box-shadow:var(--shadow-dark);
}
.signal-card{
  position:absolute;right:-6px;bottom:-22px;
  display:flex;align-items:center;gap:10px;
  padding:12px 16px;border-radius:14px;
  background:rgba(18,24,26,.96);
  border:1px solid rgba(37,227,192,.35);
  box-shadow:0 18px 40px -22px rgba(0,0,0,.9);
  min-width:220px;
}
.signal-card b{display:block;font-size:13.5px;font-weight:600;color:var(--text-hi);line-height:1.4}
.signal-card span{font-size:12px;color:var(--text-mid);font-variant-numeric:tabular-nums}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;position:relative}
.section--line{border-top:1px solid var(--ink-600)}
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:42px;
}
.sec-head h2{
  font-size:clamp(24px,2.6vw,32px);line-height:1.3;font-weight:700;
  margin-top:10px;
}
.eyebrow{
  display:inline-block;font-size:12.5px;letter-spacing:.18em;
  color:var(--ball);font-weight:600;
}
.sec-desc{margin-top:12px;max-width:640px;font-size:15px;color:var(--text-mid);line-height:1.8}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;color:var(--ball);white-space:nowrap;
  transition:gap .2s,color .2s;
}
.link-arrow:hover{gap:14px;color:#D7FF5A}

/* ---------- 观赛路径阶梯 ---------- */
.flow-list{display:flex;flex-direction:column;gap:16px;counter-reset:flow}
.flow-item{
  position:relative;
  display:grid;grid-template-columns:104px 1fr auto;
  gap:26px;align-items:center;
  background:var(--ink-800);
  border:1px solid var(--ink-600);
  border-radius:var(--radius-card);
  padding:24px 28px;
  transition:background .25s,border-color .25s,transform .25s,box-shadow .25s;
}
.flow-item::before{
  content:"";position:absolute;left:0;top:50%;
  width:3px;height:38%;transform:translateY(-50%);
  background:var(--ball);border-radius:0 3px 3px 0;opacity:.55;
  transition:height .3s,opacity .3s,box-shadow .3s;
}
.flow-list li:nth-child(2)::before{height:52%}
.flow-list li:nth-child(3)::before{height:66%}
.flow-list li:nth-child(4)::before{height:80%}
.flow-item:hover{
  background:var(--ink-700);
  border-color:rgba(201,245,60,.4);
  transform:translateY(-3px);
  box-shadow:var(--shadow-dark);
}
.flow-item:hover::before{opacity:1;box-shadow:0 0 14px rgba(201,245,60,.7)}
.flow-num{
  font-size:50px;font-weight:800;line-height:1;
  color:rgba(201,245,60,.16);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
  transition:color .25s;
}
.flow-item:hover .flow-num{color:rgba(201,245,60,.34)}
.flow-copy h3{
  font-size:19px;font-weight:700;line-height:1.4;
}
.flow-copy p{margin-top:8px;font-size:14.5px;color:var(--text-mid);line-height:1.75}
.flow-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:12px}
.flow-points li{
  position:relative;padding-left:16px;
  font-size:13.5px;color:var(--text-mid);
}
.flow-points li::before{
  content:"";position:absolute;left:0;top:11px;
  width:6px;height:6px;border-radius:50%;background:var(--ball);
}
.flow-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;color:var(--text-mid);
  padding:8px 16px;border-radius:999px;
  border:1px solid var(--ink-600);
  transition:color .25s,border-color .25s,background .25s;
  white-space:nowrap;
}
.flow-item:hover .flow-arrow{
  color:#0B0F10;background:var(--ball);border-color:var(--ball);
}

/* ---------- 套餐对比矩阵 ---------- */
.pm{--pm-cols:1.35fr repeat(3,minmax(0,1fr));display:flex;flex-direction:column;gap:0;
  border:1px solid var(--ink-600);border-radius:var(--radius-card);overflow:hidden;background:var(--ink-800)}
.pm-row{display:grid;grid-template-columns:var(--pm-cols);align-items:stretch}
.pm-row + .pm-row{border-top:1px solid var(--ink-600)}
.pm-row--head{background:var(--ink-900)}
.pm-label{
  padding:16px 22px;font-size:14px;color:var(--text-mid);
  display:flex;align-items:center;
}
.pm-row--head .pm-label{font-size:13px;letter-spacing:.06em;color:var(--text-mid)}
.pm-cells{display:contents}
.pm-val{
  padding:16px 18px;font-size:14px;color:var(--text-hi);
  display:flex;align-items:center;justify-content:center;
  text-align:center;font-variant-numeric:tabular-nums;
  border-left:1px solid rgba(42,53,56,.55);
}
.pm-cell--plan{
  padding:20px 18px;text-align:center;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;
  border-left:1px solid rgba(42,53,56,.55);
  font-size:15px;font-weight:600;
}
.pm-cell--plan em{
  font-style:normal;font-size:26px;font-weight:800;color:var(--ball);
  font-variant-numeric:tabular-nums;letter-spacing:-.01em;line-height:1.1;
}
.pm-cell--plan small{font-size:12px;font-weight:400;color:var(--text-mid)}
.pm-cell--plan.is-rec{
  background:rgba(201,245,60,.07);
  box-shadow:inset 0 3px 0 var(--ball);
  position:relative;
}
.rec-tag{
  position:absolute;top:-1px;right:14px;
  background:var(--ball);color:#0B0F10;
  font-size:11px;font-weight:700;letter-spacing:.1em;
  padding:2px 8px;border-radius:0 0 6px 6px;
}
.pm-cells .pm-val:nth-child(2){
  background:rgba(201,245,60,.05);
  color:var(--ball);font-weight:600;
}
.pm-tag{display:none}
.pm-foot{
  display:flex;justify-content:space-between;align-items:center;gap:18px;
  padding:20px 24px;border-top:1px solid var(--ink-600);
  background:var(--ink-900);flex-wrap:wrap;
}
.pm-foot p{font-size:13.5px;color:var(--text-mid)}

/* ---------- 限时横条 ---------- */
.flash{padding:0 0 88px}
.flash-inner{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  padding:26px 32px;border-radius:var(--radius-card);
  background:linear-gradient(100deg,#1A2325 0%,#12181A 62%,rgba(255,90,43,.13) 100%);
  border:1px solid rgba(255,90,43,.35);
  flex-wrap:wrap;
}
.flash-left{display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.flash-left p{font-size:15px;color:var(--text-mid)}
.countdown{
  display:flex;align-items:baseline;gap:6px;
  font-variant-numeric:tabular-nums;
}
.cd-num{
  font-size:30px;font-weight:800;color:var(--text-hi);line-height:1;
  background:rgba(11,15,16,.7);border:1px solid var(--ink-600);
  border-radius:8px;padding:6px 10px;display:inline-block;
}
.cd-sep{color:var(--flare);font-weight:700;font-size:20px}

/* ---------- CMS 内容卡片 ---------- */
.cms-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.cms-card{
  background:var(--ink-700);
  border:1px solid var(--ink-600);
  border-radius:var(--radius-card);
  overflow:hidden;
  transition:transform .28s,border-color .28s,box-shadow .28s;
}
.cms-card:hover{
  transform:translateY(-4px);
  border-color:rgba(201,245,60,.5);
  box-shadow:var(--shadow-dark);
}
.cms-card-link{display:block;height:100%}
.cms-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--ink-800)}
.cms-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.cms-card:hover .cms-thumb img{transform:scale(1.04)}
.cms-body{padding:20px 22px 22px}
.cms-body h3{
  font-size:17px;font-weight:600;line-height:1.55;margin:12px 0 8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.cms-body p{
  font-size:13.8px;color:var(--text-mid);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.cms-meta{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:16px;padding-top:14px;border-top:1px solid var(--ink-600);
  font-size:12.5px;color:var(--text-mid);font-variant-numeric:tabular-nums;
}
.cms-arrow{color:var(--ball);transition:transform .25s}
.cms-card:hover .cms-arrow{transform:translateX(5px)}
.empty-state{
  border:1px dashed var(--ink-600);
  border-radius:var(--radius-card);
  padding:56px 24px;text-align:center;
  background:rgba(26,35,37,.4);
}
.empty-state .ico{
  width:52px;height:52px;margin:0 auto 16px;border-radius:50%;
  display:grid;place-items:center;
  border:1px solid rgba(201,245,60,.35);color:var(--ball);
  font-size:22px;
}
.empty-state p{font-size:15px;color:var(--text-mid)}
.empty-state .btn{margin-top:20px}

/* ---------- 观赛反馈 ---------- */
.quote-grid{display:grid;grid-template-columns:1.15fr 1fr 1fr;gap:24px}
.quote-card{
  background:var(--ink-800);
  border:1px solid var(--ink-600);
  border-radius:var(--radius-card);
  padding:26px 26px 24px;
  display:flex;flex-direction:column;justify-content:space-between;
  transition:border-color .25s,transform .25s;
}
.quote-card:hover{border-color:rgba(201,245,60,.42);transform:translateY(-3px)}
.quote-card blockquote{
  font-size:15px;line-height:1.85;color:var(--text-hi);
}
.quote-card blockquote::before{
  content:"“";display:block;font-size:34px;line-height:.6;
  color:var(--ball);margin-bottom:12px;opacity:.8;
}
.quote-card figcaption{
  margin-top:20px;padding-top:16px;border-top:1px solid var(--ink-600);
  font-size:13px;color:var(--text-mid);
}
.quote-card figcaption b{color:var(--text-hi);font-weight:600}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:.82fr 1.18fr;gap:56px;align-items:start}
.faq-intro h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;font-weight:700;margin-top:10px}
.faq-intro p{margin-top:16px;font-size:15px;color:var(--text-mid);line-height:1.85}
.faq-intro .link-arrow{margin-top:20px}
.faq-list{border-top:1px solid var(--ink-600)}
.faq-item{border-bottom:1px solid var(--ink-600)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
  padding:18px 0;font-size:17px;font-weight:600;line-height:1.6;
  color:var(--text-hi);transition:color .2s;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--ball)}
.faq-item summary::after{
  content:"+";flex-shrink:0;color:var(--ball);
  font-size:22px;line-height:1;font-weight:400;
  transition:transform .25s;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-body{padding:0 0 18px;font-size:14.8px;line-height:1.85;color:var(--text-mid)}
.faq-body p + p{margin-top:10px}

/* ---------- 咨询表单 ---------- */
.consult-wrap{display:grid;grid-template-columns:.92fr 1.08fr;gap:56px;align-items:start}
.consult-copy h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;font-weight:700}
.consult-copy p{margin-top:16px;font-size:15px;color:var(--text-mid);line-height:1.85}
.check-list{margin-top:26px;display:flex;flex-direction:column;gap:14px}
.check-list li{
  position:relative;padding-left:28px;
  font-size:14.8px;color:var(--text-hi);line-height:1.7;
}
.check-list li::before{
  content:"";position:absolute;left:0;top:6px;
  width:16px;height:16px;border-radius:50%;
  background:rgba(201,245,60,.14);
  border:1px solid rgba(201,245,60,.55);
}
.check-list li::after{
  content:"";position:absolute;left:5px;top:11px;
  width:6px;height:3px;border-left:1.5px solid var(--ball);border-bottom:1.5px solid var(--ball);
  transform:rotate(-45deg);
}
.form-card{
  background:var(--ink-800);
  border:1px solid var(--ink-600);
  border-radius:var(--radius-card);
  padding:32px;
}
.field{margin-bottom:18px}
.field label{
  display:block;font-size:13px;color:var(--text-mid);margin-bottom:8px;
}
.field input,.field select,.field textarea{
  width:100%;
  background:var(--ink-900);
  border:1px solid var(--ink-600);
  border-radius:var(--radius-input);
  color:var(--text-hi);
  padding:12px 14px;
  font-size:14.5px;
  line-height:1.5;
  transition:border-color .22s,box-shadow .22s,background .22s;
  appearance:none;
}
.field textarea{resize:vertical;min-height:104px}
.field input::placeholder,.field textarea::placeholder{color:rgba(166,179,174,.6)}
.field input:hover,.field select:hover,.field textarea:hover{border-color:#3A4A4E}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--ball);
  box-shadow:0 0 0 3px rgba(201,245,60,.18);
  background:var(--ink-800);
}
.field select{
  background-image:linear-gradient(45deg,transparent 50%,var(--text-mid) 50%),linear-gradient(135deg,var(--text-mid) 50%,transparent 50%);
  background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;
  background-size:5px 5px,5px 5px;
  background-repeat:no-repeat;
  padding-right:42px;
}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-foot{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;margin-top:8px}
.form-note{font-size:12.5px;color:var(--text-mid);line-height:1.6;max-width:300px}
.form-foot .btn{justify-self:end}

/* ---------- 页脚 ---------- */
.site-foot{
  background:var(--ink-900);
  border-top:1px solid var(--ink-600);
  position:relative;
  padding-top:64px;
}
.site-foot::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(201,245,60,.75),transparent);
}
.foot-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:48px;
  padding-bottom:48px;
}
.foot-brand .brand{margin-bottom:18px}
.foot-brand p{font-size:14px;color:var(--text-mid);line-height:1.85;max-width:420px}
.foot-kw{
  display:inline-block;margin-top:18px;
  font-size:12.5px;color:var(--ball);
  border:1px solid rgba(201,245,60,.35);
  border-radius:999px;padding:4px 14px;
}
.foot-col h4{
  font-size:13px;font-weight:600;letter-spacing:.1em;
  color:var(--text-hi);margin-bottom:18px;
}
.foot-col a,.foot-col p{
  display:block;font-size:14px;color:var(--text-mid);
  margin-bottom:12px;line-height:1.7;
  transition:color .2s,padding-left .2s;
}
.foot-col a:hover{color:var(--ball);padding-left:4px}
.foot-bottom{
  border-top:1px solid var(--ink-700);
  padding-top:22px;padding-bottom:30px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  flex-wrap:wrap;
}
.foot-bottom p{font-size:13px;color:var(--text-mid);line-height:1.7}
.foot-bottom p:last-child{max-width:620px;font-size:12.5px;color:#7C8A85}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .hero{padding:56px 0 64px}
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero-media{max-width:620px}
  .signal-card{position:static;margin-top:16px;right:auto;bottom:auto;width:100%;max-width:320px}
  .cms-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .quote-grid{grid-template-columns:1fr 1fr}
  .quote-grid .quote-card:first-child{grid-column:1 / -1}
  .faq-wrap,.consult-wrap{grid-template-columns:1fr;gap:36px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:860px){
  .nav-desktop,.head-cta{display:none}
  .nav-toggle{display:grid}
  .section{padding:66px 0}
  .flash{padding-bottom:66px}
  .sec-head{align-items:flex-start;flex-direction:column;gap:14px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .flash{padding-bottom:56px}
  .flow-item{grid-template-columns:64px 1fr;gap:18px;padding:20px 20px 20px 18px}
  .flow-arrow{grid-column:1 / -1;justify-self:start}
  .flow-num{font-size:38px}
  /* 套餐矩阵移动端改为分组行 */
  .pm-row{display:block;padding:0}
  .pm-row--head{display:none}
  .pm-row .pm-label{
    display:block;padding:16px 20px 6px;
    font-size:14.5px;font-weight:600;color:var(--text-hi);
  }
  .pm-cells{
    display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
    gap:8px;padding:0 20px 16px;
  }
  .pm-val{
    border:1px solid var(--ink-600);
    border-radius:10px;padding:10px 8px;
    font-size:12.8px;line-height:1.5;
    flex-direction:column;gap:4px;
    background:var(--ink-900);
  }
  .pm-cells .pm-val:nth-child(2){
    border-color:rgba(201,245,60,.45);
    background:rgba(201,245,60,.07);
  }
  .pm-tag{
    display:block;font-size:10.5px;letter-spacing:.04em;
    color:var(--text-mid);font-weight:400;
  }
  .pm-cells .pm-val:nth-child(2) .pm-tag{color:rgba(201,245,60,.8)}
  .pm-foot{padding:18px 20px}
  .flash-inner{padding:22px 22px;gap:20px}
  .cd-num{font-size:24px;padding:5px 8px}
  .quote-grid{grid-template-columns:1fr}
  .form-card{padding:24px}
  .field-row{grid-template-columns:1fr}
  .form-foot .btn{width:100%;justify-self:stretch}
  .form-note{max-width:none}
  .foot-grid{grid-template-columns:1fr;gap:32px;padding-bottom:36px}
}
@media (max-width:640px){
  .head-inner{height:62px;gap:12px}
  .drawer{top:62px}
  .brand-text strong{font-size:14px}
  .brand-text em{font-size:11px;letter-spacing:.16em}
  .hero-stats{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
  .stat{padding:10px 10px}
  .stat b{font-size:14px}
  .stat span{font-size:11px}
  .hero-actions{width:100%}
  .hero-actions .btn{width:100%}
  .cms-grid{grid-template-columns:1fr;gap:18px}
  .faq-item summary{font-size:16px}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root{
  --ink-900:#0B0F10;
  --ink-800:#12181A;
  --ink-700:#1A2325;
  --ink-600:#2A3538;
  --ball:#C9F53C;
  --ball-deep:#A8DC16;
  --signal:#25E3C0;
  --flare:#FF5A2B;
  --paper:#F6F8F3;
  --paper-2:#E8EDE3;
  --text-hi:#F2F7F3;
  --text-mid:#A6B3AE;
  --line:#2A3538;
  --radius-card:16px;
  --radius-img:12px;
  --radius-input:10px;
  --shadow-neon:0 0 0 1px rgba(201,245,60,.16),0 18px 40px -22px rgba(0,0,0,.85);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
html body{
  margin:0;
  background:var(--ink-900);
  color:var(--text-hi);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
input,select,textarea{font-family:inherit}
::selection{background:rgba(201,245,60,.28);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#0B0F10}
::-webkit-scrollbar-thumb{background:#2A3538;border-radius:999px}
::-webkit-scrollbar-thumb:hover{background:rgba(201,245,60,.55)}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ============ 顶部导航 ============ */
.site-head{
  position:sticky;top:0;z-index:60;
  background:rgba(11,15,16,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.site-head::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(201,245,60,.75),transparent);
}
.head-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:72px}
.site-head .brand,.site-foot .brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text-hi)}
.brand-mark{
  width:34px;height:34px;display:grid;place-items:center;
  border:1px solid rgba(201,245,60,.45);border-radius:10px;
  background:rgba(201,245,60,.06);color:var(--ball);flex:0 0 auto;
}
.brand-mark svg{width:20px;height:20px}
.brand-text strong{display:block;font-size:15px;font-weight:700;letter-spacing:.02em;line-height:1.25}
.brand-text em{display:block;font-style:normal;font-size:11.5px;letter-spacing:.22em;color:var(--ball);line-height:1.5}
.nav-desktop{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;padding:9px 13px;border-radius:999px;
  font-size:14.5px;color:var(--text-mid);white-space:nowrap;
  transition:color .22s ease,background .22s ease,box-shadow .22s ease;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:2px;height:2px;width:0;border-radius:2px;
  background:var(--ball);transform:translateX(-50%);transition:width .22s ease;
}
.nav-link:hover{color:var(--text-hi)}
.nav-link:hover::after{width:8px}
.nav-link:focus-visible{outline:2px solid var(--signal);outline-offset:3px}
.nav-link.is-active{
  color:var(--ball);background:rgba(201,245,60,.12);
  box-shadow:0 0 12px rgba(201,245,60,.22);
}
.nav-link.is-active::after{width:0}
.head-cta{margin-left:10px}
.nav-toggle{
  display:none;width:44px;height:44px;padding:12px 10px;flex-direction:column;justify-content:space-between;
  background:transparent;border:1px solid var(--ink-600);border-radius:12px;cursor:pointer;
}
.nav-toggle span{display:block;height:2px;background:var(--text-hi);border-radius:2px;transition:transform .25s ease,opacity .25s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}
.nav-toggle:focus-visible{outline:2px solid var(--signal);outline-offset:3px}
.drawer{
  display:none;position:absolute;left:0;right:0;top:100%;
  background:var(--ink-800);border-top:1px solid var(--line);
  padding:12px 20px 24px;flex-direction:column;gap:2px;
  box-shadow:0 24px 40px -20px rgba(0,0,0,.95);
}
.drawer.is-open{display:flex}
.drawer a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 6px;font-size:15px;color:var(--text-mid);
  border-bottom:1px solid rgba(42,53,56,.7);
}
.drawer a::after{content:"›";color:rgba(166,179,174,.6);font-size:18px;line-height:1}
.drawer a.is-active{color:var(--ball)}
.drawer a.btn{margin-top:16px;border-bottom:0;justify-content:center;color:#0B0F10}
.drawer a.btn::after{display:none}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  transition:background .22s ease,color .22s ease,transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.btn-primary{background:var(--ball);color:#0B0F10}
.btn-primary:hover{background:var(--ball-deep);transform:translateY(-2px);box-shadow:0 0 18px rgba(201,245,60,.35)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 10px rgba(201,245,60,.25)}
.btn-ghost{background:transparent;border-color:rgba(201,245,60,.55);color:var(--ball)}
.btn-ghost:hover{background:rgba(201,245,60,.1);transform:translateY(-2px)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn:focus-visible{outline:2px solid var(--signal);outline-offset:3px}

/* ============ Hero ============ */
.hero-cat{position:relative;overflow:hidden;padding:52px 0 56px;background:var(--ink-900);border-bottom:1px solid var(--line)}
.hero-cat::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(90deg,rgba(11,15,16,.97) 0%,rgba(11,15,16,.88) 46%,rgba(11,15,16,.55) 100%),
    url(/assets/images/backpic/back-1.webp);
  background-size:cover;background-position:center;
}
.hero-cat-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.35fr .85fr;gap:44px;align-items:center}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-mid);margin-bottom:16px}
.crumb a{color:var(--text-mid);transition:color .2s ease}
.crumb a:hover{color:var(--ball)}
.crumb i{font-style:normal;color:rgba(166,179,174,.45)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 12px;border-radius:6px;margin-bottom:16px;
  background:rgba(37,227,192,.1);border:1px solid rgba(37,227,192,.35);
  color:var(--signal);font-size:12.5px;letter-spacing:.06em;
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--signal);animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{opacity:1;box-shadow:0 0 0 0 rgba(37,227,192,.5)}50%{opacity:.55;box-shadow:0 0 0 6px rgba(37,227,192,0)}}
.hero-cat h1{
  margin:0;font-size:clamp(30px,3.9vw,46px);line-height:1.16;font-weight:800;letter-spacing:-.01em;
  color:var(--text-hi);
}
.hero-cat h1 span{color:var(--ball)}
.hero-lead{margin:16px 0 0;font-size:16px;line-height:1.85;color:var(--text-mid);max-width:44em}
.filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:25px}
.chip{
  padding:8px 16px;border-radius:999px;font-size:13.5px;cursor:pointer;
  background:var(--ink-700);border:1px solid var(--ink-600);color:var(--text-mid);
  transition:color .2s ease,border-color .2s ease,background .2s ease,box-shadow .2s ease;
}
.chip:hover{color:var(--text-hi);border-color:rgba(201,245,60,.45)}
.chip.is-on{
  color:var(--ball);border-color:rgba(201,245,60,.75);background:rgba(201,245,60,.12);
  box-shadow:0 0 14px rgba(201,245,60,.18);
}
.chip:focus-visible{outline:2px solid var(--signal);outline-offset:2px}
.hero-figure{margin:0;position:relative}
.hero-figure img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--radius-img);border:1px solid rgba(201,245,60,.28);
  box-shadow:var(--shadow-neon);
}
.hero-figure figcaption{
  margin-top:10px;font-size:12.5px;color:rgba(166,179,174,.85);line-height:1.6;
}

/* ============ 板块通用 ============ */
.section{padding:88px 0}
.section-tight{padding:64px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px;flex-wrap:wrap}
.sec-title h2{margin:0;font-size:clamp(24px,2.5vw,32px);line-height:1.3;font-weight:700;letter-spacing:-.01em}
.sec-title p{margin:10px 0 0;font-size:15px;line-height:1.8;color:var(--text-mid);max-width:52em}
.sec-more{font-size:14.5px;color:var(--ball);display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.sec-more span{transition:transform .22s ease}
.sec-more:hover span{transform:translateX(4px)}

/* ============ 直播卡片网格 ============ */
.stream-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  background:var(--ink-700);border:1px solid var(--ink-600);border-radius:var(--radius-card);
  overflow:hidden;transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.card-stream{display:flex;flex-direction:column}
.card-stream:hover{transform:translateY(-4px);border-color:rgba(201,245,60,.5);box-shadow:var(--shadow-neon)}
.card-media{position:relative;overflow:hidden;background:var(--ink-800)}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .45s ease}
.card-stream:hover .card-media img{transform:scale(1.03)}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:6px;font-size:12px;font-weight:600;line-height:1.5;
}
.badge-live{
  position:absolute;top:12px;left:12px;
  background:rgba(11,15,16,.85);color:var(--signal);
  border:1px solid rgba(37,227,192,.45);
}
.badge-live .dot{width:7px;height:7px;border-radius:50%;background:var(--signal);animation:pulse 1.8s infinite}
.badge-soon{
  position:absolute;top:12px;left:12px;
  background:rgba(11,15,16,.85);color:var(--text-hi);
  border:1px solid rgba(246,248,243,.28);
}
.badge-replay{
  position:absolute;top:12px;left:12px;
  background:rgba(11,15,16,.85);color:var(--ball);
  border:1px solid rgba(201,245,60,.45);
}
.card-body{padding:20px 22px 6px;flex:1 1 auto}
.card-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}
.tag{
  display:inline-block;padding:3px 9px;border-radius:6px;font-size:12px;
  background:var(--ink-800);border:1px solid var(--ink-600);color:var(--text-mid);
}
.tag-signal{color:var(--signal);border-color:rgba(37,227,192,.35);background:rgba(37,227,192,.08)}
.card-body h3{
  margin:0 0 10px;font-size:18px;line-height:1.45;font-weight:600;color:var(--text-hi);
}
.card-body p{
  margin:0 0 16px;font-size:14.5px;line-height:1.8;color:var(--text-mid);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 22px 20px;border-top:1px solid rgba(42,53,56,.75);
}
.time{font-size:13px;color:rgba(166,179,174,.9);font-variant-numeric:tabular-nums}
.card-link{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;color:var(--ball)}
.card-link span{transition:transform .22s ease}
.card-link:hover span{transform:translateX(4px)}
.card-link:focus-visible{outline:2px solid var(--signal);outline-offset:3px}

/* ============ 数据条 ============ */
.stat-wrap{background:var(--ink-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat-item{padding:28px 26px;border-left:1px solid rgba(42,53,56,.85)}
.stat-item:first-child{border-left:0;padding-left:0}
.stat-num{
  font-size:30px;font-weight:700;color:var(--ball);line-height:1.15;
  font-variant-numeric:tabular-nums;letter-spacing:-.01em;
}
.stat-num small{font-size:14px;font-weight:600;color:var(--text-mid);margin-left:4px;letter-spacing:0}
.stat-label{margin-top:6px;font-size:13.5px;color:var(--text-mid)}

/* ============ 观看步骤 ============ */
.step-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.step-card{
  position:relative;padding:28px 24px 26px;border-radius:var(--radius-card);
  background:var(--ink-800);border:1px solid var(--ink-600);
  transition:border-color .25s ease,transform .25s ease;
}
.step-card:hover{border-color:rgba(201,245,60,.42);transform:translateY(-3px)}
.step-no{
  font-size:13px;font-weight:700;color:var(--ball);letter-spacing:.16em;
  font-variant-numeric:tabular-nums;
}
.step-card h3{margin:12px 0 10px;font-size:19px;font-weight:600;line-height:1.4}
.step-card p{margin:0;font-size:14.5px;line-height:1.85;color:var(--text-mid)}
.step-card::before{
  content:"";position:absolute;left:0;top:26px;bottom:26px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--ball),rgba(201,245,60,0));
}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:.85fr 1.45fr;gap:48px;align-items:start}
.faq-aside h2{margin:0 0 14px;font-size:clamp(24px,2.5vw,32px);line-height:1.3;font-weight:700}
.faq-aside p{margin:0 0 20px;font-size:15px;line-height:1.85;color:var(--text-mid)}
.faq-aside .btn{margin-top:6px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 0;background:none;border:0;cursor:pointer;text-align:left;
  font-size:16.5px;font-weight:600;color:var(--text-hi);line-height:1.55;
}
.faq-q:focus-visible{outline:2px solid var(--signal);outline-offset:4px;border-radius:8px}
.faq-icon{position:relative;flex:0 0 auto;width:16px;height:16px;transition:transform .28s ease}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--ball);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(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s ease}
.faq-item.is-open .faq-a{max-height:400px}
.faq-a p{margin:0 0 18px;font-size:14.8px;line-height:1.85;color:var(--text-mid)}

/* ============ CTA ============ */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:34px 38px;border-radius:var(--radius-card);
  background:linear-gradient(100deg,rgba(201,245,60,.1),rgba(18,24,26,.92) 58%);
  border:1px solid rgba(201,245,60,.35);
  box-shadow:0 0 0 1px rgba(201,245,60,.06),0 24px 48px -30px rgba(0,0,0,.9);
}
.cta-band h2{margin:0 0 8px;font-size:clamp(20px,2.2vw,26px);line-height:1.35;font-weight:700}
.cta-band p{margin:0;font-size:14.5px;line-height:1.8;color:var(--text-mid);max-width:46em}

/* ============ 页脚 ============ */
.site-foot{position:relative;background:var(--ink-900);border-top:1px solid var(--line);margin-top:8px}
.site-foot::before{
  content:"";position:absolute;left:0;right:0;top:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(201,245,60,.7),transparent);
}
.foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1.1fr;gap:44px;padding:60px 0 40px}
.foot-brand p{margin:16px 0 0;font-size:14px;line-height:1.85;color:var(--text-mid);max-width:34em}
.foot-kw{
  display:inline-block;margin-top:16px;padding:5px 12px;border-radius:6px;
  border:1px solid rgba(201,245,60,.35);color:var(--ball);font-size:12.5px;
}
.foot-col h4{margin:0 0 14px;font-size:14px;font-weight:700;color:var(--text-hi);letter-spacing:.04em}
.foot-col a,.foot-col p{
  display:block;margin:0;padding:6px 0;font-size:14px;color:var(--text-mid);line-height:1.7;
  transition:color .2s ease;
}
.foot-col a:hover{color:var(--ball)}
.foot-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 30px;border-top:1px solid var(--line);
}
.foot-bottom p{margin:0;font-size:13px;color:rgba(166,179,174,.85);line-height:1.7}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .nav-desktop,.head-cta{display:none}
  .nav-toggle{display:flex}
  .container{padding:0 20px}
  .hero-cat-inner{grid-template-columns:1fr;gap:32px}
  .hero-figure img{aspect-ratio:16/8}
  .stream-grid{grid-template-columns:repeat(2,1fr)}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .stat-item{padding:24px 20px}
  .stat-item:nth-child(3){border-left:0;padding-left:0}
  .stat-item:nth-child(3),.stat-item:nth-child(4){border-top:1px solid rgba(42,53,56,.85)}
  .step-grid{grid-template-columns:1fr}
  .faq-wrap{grid-template-columns:1fr;gap:32px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:34px}
  .foot-brand{grid-column:1 / -1}
  .section{padding:72px 0}
}
@media (max-width:768px){
  html body{font-size:16px}
  .hero-cat{padding:40px 0 44px}
  .stream-grid{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 24px}
  .cta-band .btn{width:100%}
  .foot-grid{grid-template-columns:1fr 1fr;padding:48px 0 32px}
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .sec-head{margin-bottom:26px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .head-inner{height:64px;gap:10px}
  .brand-text strong{font-size:14px}
  .brand-mark{width:30px;height:30px}
  .stat-grid{grid-template-columns:1fr 1fr}
  .stat-num{font-size:24px}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column;align-items:flex-start}
  .filter-row{gap:8px}
  .chip{font-size:12.5px;padding:7px 13px}
  .card-body{padding:18px 18px 4px}
  .card-foot{padding:12px 18px 18px}
}

/* roulang page: article */
:root {
      --ink-900: #0B0F10;
      --ink-800: #12181A;
      --ink-700: #1A2325;
      --ink-600: #2A3538;
      --ball: #C9F53C;
      --ball-deep: #A8DC16;
      --signal: #25E3C0;
      --flare: #FF5A2B;
      --paper: #F6F8F3;
      --paper-2: #E8EDE3;
      --text-hi: #F2F7F3;
      --text-mid: #A6B3AE;
      --paper-text: #131A18;
      --paper-text-mid: #5C6A65;
      --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      --font-num: "Barlow", "Oswald", "PingFang SC", "Microsoft YaHei", sans-serif;
      --radius-card: 16px;
      --radius-img: 12px;
      --shadow-dark: 0 18px 40px -22px rgba(0, 0, 0, .85);
      --shadow-paper: 0 30px 80px -45px rgba(0, 0, 0, .95);
      --container: 1200px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body.site-body {
      margin: 0;
      background: var(--ink-900);
      color: var(--text-hi);
      font-family: var(--font-sans);
      font-size: 16px;
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
      text-rendering: optimizeLegibility;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

    img {
      max-width: 100%;
      display: block;
    }

    button,
    input,
    select,
    textarea {
      font: inherit;
    }

    button {
      border: 0;
      background: none;
    }

    ::selection {
      background: var(--ball);
      color: var(--ink-900);
    }

    :focus-visible {
      outline: 2px solid var(--signal);
      outline-offset: 3px;
    }

    ::-webkit-scrollbar {
      width: 10px;
      height: 10px;
    }

    ::-webkit-scrollbar-track {
      background: var(--ink-900);
    }

    ::-webkit-scrollbar-thumb {
      background: #33413d;
      border: 2px solid var(--ink-900);
      border-radius: 999px;
    }

    ::-webkit-scrollbar-thumb:hover {
      background: var(--ball-deep);
    }

    .container {
      width: 100%;
      max-width: var(--container);
      margin: 0 auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    .site-head {
      position: sticky;
      top: 0;
      z-index: 60;
      background: rgba(11, 15, 16, .92);
      -webkit-backdrop-filter: blur(12px);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(42, 53, 56, .5);
    }

    .site-head::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: -1px;
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(201, 245, 60, .72), transparent);
      pointer-events: none;
    }

    .head-inner {
      min-height: 74px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 22px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 11px;
      min-width: 0;
      color: var(--text-hi);
    }

    .brand-mark {
      width: 38px;
      height: 38px;
      flex: 0 0 38px;
      border-radius: 50%;
      border: 1px solid rgba(201, 245, 60, .42);
      background: rgba(201, 245, 60, .06);
      color: var(--ball);
      display: grid;
      place-items: center;
      box-shadow: 0 0 18px rgba(201, 245, 60, .14);
    }

    .brand-mark svg {
      width: 23px;
      height: 23px;
    }

    .brand-text {
      display: flex;
      flex-direction: column;
      line-height: 1.14;
      min-width: 0;
    }

    .brand-text strong {
      font-size: 16px;
      letter-spacing: .01em;
      font-weight: 800;
      color: var(--text-hi);
      white-space: nowrap;
    }

    .brand-text em {
      font-style: normal;
      font-size: 10.5px;
      letter-spacing: .18em;
      color: var(--text-mid);
      margin-top: 3px;
      white-space: nowrap;
    }

    .nav-desktop {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 24px;
      flex: 1;
    }

    .nav-link {
      position: relative;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 38px;
      padding: 6px 2px;
      color: var(--text-mid);
      font-size: 14.5px;
      font-weight: 500;
      white-space: nowrap;
      transition: color .22s ease, background .22s ease, box-shadow .22s ease;
    }

    .nav-link::after {
      content: "";
      position: absolute;
      left: 50%;
      bottom: 3px;
      width: 0;
      height: 2px;
      border-radius: 2px;
      background: var(--ball);
      transform: translateX(-50%);
      transition: width .22s ease;
    }

    .nav-link:hover {
      color: var(--text-hi);
    }

    .nav-link:hover::after {
      width: 8px;
    }

    .nav-link.is-active {
      color: var(--ball);
      background: rgba(201, 245, 60, .12);
      box-shadow: 0 0 12px rgba(201, 245, 60, .16);
      border-radius: 999px;
      padding: 6px 13px;
    }

    .nav-link.is-active::after {
      display: none;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 44px;
      padding: 11px 21px;
      border-radius: 999px;
      border: 1px solid transparent;
      font-size: 14px;
      font-weight: 700;
      line-height: 1.2;
      cursor: pointer;
      white-space: nowrap;
      transition: transform .2s ease, background .2s ease, border-color .2s ease, color .2s ease, box-shadow .2s ease;
    }

    .btn:active {
      transform: translateY(0);
    }

    .btn-primary {
      background: var(--ball);
      border-color: var(--ball);
      color: var(--ink-900);
      box-shadow: 0 8px 22px -12px rgba(201, 245, 60, .65);
    }

    .btn-primary:hover {
      background: var(--ball-deep);
      border-color: var(--ball-deep);
      transform: translateY(-2px);
      box-shadow: 0 0 26px rgba(201, 245, 60, .32);
    }

    .btn-secondary {
      background: transparent;
      border-color: rgba(201, 245, 60, .58);
      color: var(--ball);
    }

    .btn-secondary:hover {
      background: rgba(201, 245, 60, .1);
      border-color: var(--ball);
      transform: translateY(-2px);
    }

    .btn-ghost {
      background: transparent;
      border-color: transparent;
      color: var(--text-hi);
      padding-left: 4px;
      padding-right: 4px;
    }

    .btn-ghost:hover {
      color: var(--ball);
    }

    .btn-sm {
      min-height: 38px;
      padding: 8px 15px;
      font-size: 13px;
    }

    .head-cta {
      flex: 0 0 auto;
    }

    .nav-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: 12px;
      border: 1px solid var(--ink-600);
      background: var(--ink-800);
      color: var(--text-hi);
      cursor: pointer;
      align-items: center;
      justify-content: center;
      flex-direction: column;
      gap: 4px;
      transition: border-color .2s ease, background .2s ease;
    }

    .nav-toggle:hover {
      border-color: rgba(201, 245, 60, .5);
      background: var(--ink-700);
    }

    .nav-toggle span {
      display: block;
      width: 20px;
      height: 2px;
      border-radius: 2px;
      background: currentColor;
      transition: transform .22s ease, opacity .22s ease;
    }

    .nav-toggle.is-open span:nth-child(1) {
      transform: translateY(6px) rotate(45deg);
    }

    .nav-toggle.is-open span:nth-child(2) {
      opacity: 0;
    }

    .nav-toggle.is-open span:nth-child(3) {
      transform: translateY(-6px) rotate(-45deg);
    }

    .drawer {
      display: none;
      position: absolute;
      top: 100%;
      left: 0;
      right: 0;
      z-index: 70;
      padding: 14px 20px 22px;
      background: rgba(11, 15, 16, .98);
      border-bottom: 1px solid var(--ink-600);
      box-shadow: 0 24px 45px -20px rgba(0, 0, 0, .9);
      flex-direction: column;
      gap: 0;
    }

    .drawer.open {
      display: flex;
    }

    .drawer a:not(.btn) {
      display: flex;
      align-items: center;
      justify-content: space-between;
      min-height: 50px;
      border-bottom: 1px solid var(--ink-600);
      color: var(--text-mid);
      font-size: 15px;
    }

    .drawer a:not(.btn)::after {
      content: "→";
      color: var(--ball);
      opacity: .8;
    }

    .drawer a:not(.btn):hover,
    .drawer a:not(.btn).is-active {
      color: var(--ball);
    }

    .drawer .btn {
      width: 100%;
      margin-top: 16px;
    }

    .page-main {
      overflow: hidden;
    }

    .article-hero {
      position: relative;
      padding: 50px 0 36px;
      background-image:
        linear-gradient(90deg, rgba(11, 15, 16, .96) 0%, rgba(11, 15, 16, .82) 54%, rgba(11, 15, 16, .58) 100%),
        url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      border-bottom: 1px solid var(--ink-600);
    }

    .article-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background: radial-gradient(circle at 82% 28%, rgba(201, 245, 60, .12), transparent 35%);
      pointer-events: none;
    }

    .article-hero .container {
      position: relative;
      z-index: 1;
    }

    .breadcrumb {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px;
      margin-bottom: 24px;
      color: var(--text-mid);
      font-size: 13px;
      line-height: 1.6;
    }

    .breadcrumb a {
      color: var(--text-mid);
      transition: color .2s ease;
    }

    .breadcrumb a:hover {
      color: var(--ball);
    }

    .breadcrumb .sep {
      color: #66746f;
      font-size: 12px;
    }

    .breadcrumb .current {
      color: var(--text-hi);
      max-width: 48ch;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    .article-head {
      max-width: 950px;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      min-height: 28px;
      padding: 5px 10px;
      border-radius: 6px;
      border: 1px solid var(--ink-600);
      background: var(--ink-700);
      color: var(--text-mid);
      font-size: 12px;
      line-height: 1.3;
      font-weight: 600;
    }

    .badge-live {
      border-color: rgba(37, 227, 192, .28);
      background: rgba(37, 227, 192, .09);
      color: var(--signal);
    }

    .dot {
      width: 8px;
      height: 8px;
      flex: 0 0 8px;
      border-radius: 50%;
      background: var(--signal);
      animation: breathe 1.8s ease-out infinite;
    }

    @keyframes breathe {
      0% {
        box-shadow: 0 0 0 0 rgba(37, 227, 192, .5);
      }
      70% {
        box-shadow: 0 0 0 8px rgba(37, 227, 192, 0);
      }
      100% {
        box-shadow: 0 0 0 0 rgba(37, 227, 192, 0);
      }
    }

    .article-head h1 {
      margin: 18px 0 18px;
      color: var(--text-hi);
      font-size: clamp(32px, 4.5vw, 52px);
      line-height: 1.15;
      letter-spacing: -.01em;
      font-weight: 800;
      word-break: break-word;
    }

    .article-meta {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px 18px;
      color: var(--text-mid);
      font-size: 13.5px;
      line-height: 1.6;
    }

    .article-meta span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .article-meta span::before {
      content: "";
      width: 4px;
      height: 4px;
      border-radius: 50%;
      background: rgba(201, 245, 60, .65);
    }

    .article-meta span:first-child::before {
      display: none;
    }

    .article-cover {
      position: relative;
      margin: 30px 0 0;
      aspect-ratio: 16 / 9;
      border-radius: var(--radius-card);
      overflow: hidden;
      background: var(--ink-800);
      border: 1px solid var(--ink-600);
      box-shadow: var(--shadow-dark);
    }

    .article-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: .94;
      transition: transform .4s ease;
    }

    .article-cover:hover img {
      transform: scale(1.015);
    }

    .article-cover::after {
      content: "";
      position: absolute;
      inset: auto 0 0 0;
      height: 35%;
      background: linear-gradient(180deg, transparent, rgba(11, 15, 16, .38));
      pointer-events: none;
    }

    .article-section {
      padding: 54px 0 80px;
      background:
        radial-gradient(circle at 50% 0, rgba(201, 245, 60, .055), transparent 52%),
        var(--ink-900);
    }

    .paper {
      width: 100%;
      max-width: 960px;
      margin: 0 auto;
      padding: 52px 56px;
      border-radius: 20px;
      background: var(--paper);
      color: var(--paper-text);
      border: 1px solid rgba(201, 245, 60, .14);
      box-shadow: var(--shadow-paper);
    }

    .article-body {
      max-width: 760px;
      margin: 0 auto;
      color: #1d2724;
      font-size: 17px;
      line-height: 1.9;
      word-break: break-word;
    }

    .article-body > *:first-child {
      margin-top: 0;
    }

    .article-body > *:last-child {
      margin-bottom: 0;
    }

    .article-body p {
      margin: 0 0 1.2em;
    }

    .article-body h2 {
      margin: 2em 0 .8em;
      color: #0d1612;
      font-size: clamp(24px, 2.4vw, 30px);
      line-height: 1.3;
      font-weight: 700;
      letter-spacing: -.01em;
    }

    .article-body h3 {
      margin: 1.6em 0 .6em;
      color: #13201a;
      font-size: clamp(19px, 1.8vw, 21px);
      line-height: 1.45;
      font-weight: 600;
    }

    .article-body h4 {
      margin: 1.4em 0 .6em;
      color: #13201a;
      font-size: 18px;
      line-height: 1.5;
      font-weight: 600;
    }

    .article-body a {
      color: #5b7b00;
      text-decoration: underline;
      text-decoration-color: rgba(91, 123, 0, .35);
      text-underline-offset: 3px;
      transition: color .2s ease;
    }

    .article-body a:hover {
      color: #3d5400;
    }

    .article-body ul,
    .article-body ol {
      margin: 1em 0 1.35em;
      padding-left: 1.4em;
    }

    .article-body ul {
      list-style: none;
    }

    .article-body ul li {
      position: relative;
      margin: .5em 0;
    }

    .article-body ul li::before {
      content: "";
      position: absolute;
      left: -1.16em;
      top: .72em;
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: #a9d51f;
      box-shadow: 0 0 0 3px rgba(201, 245, 60, .2);
    }

    .article-body ol {
      list-style: decimal;
    }

    .article-body li {
      margin: .5em 0;
    }

    .article-body blockquote {
      margin: 1.6em 0;
      padding: 16px 24px;
      border-left: 3px solid var(--ball-deep);
      border-radius: 0 12px 12px 0;
      background: #edf1e8;
      color: #33413b;
    }

    .article-body blockquote p:last-child {
      margin-bottom: 0;
    }

    .article-body img {
      max-width: 100%;
      height: auto;
      margin: 1.4em auto;
      border-radius: var(--radius-img);
    }

    .article-body figure {
      margin: 1.6em 0;
    }

    .article-body figcaption {
      margin-top: 8px;
      color: var(--paper-text-mid);
      font-size: 13px;
      line-height: 1.6;
      text-align: center;
    }

    .article-body table {
      display: block;
      width: 100%;
      margin: 1.6em 0;
      overflow-x: auto;
      border-collapse: collapse;
      font-size: 15px;
    }

    .article-body th,
    .article-body td {
      padding: 11px 13px;
      border-bottom: 1px solid #d7dfd2;
      text-align: left;
      white-space: nowrap;
    }

    .article-body th {
      background: #e9eee4;
      color: #25302b;
      font-weight: 700;
    }

    .article-body hr {
      margin: 2em 0;
      border: 0;
      border-top: 1px solid #d7dfd2;
    }

    .article-body code {
      padding: 2px 6px;
      border-radius: 4px;
      background: #e9eee4;
      font-size: .9em;
    }

    .article-body strong {
      color: #0d1512;
      font-weight: 700;
    }

    .article-tags {
      max-width: 760px;
      margin: 40px auto 0;
      padding-top: 24px;
      border-top: 1px solid #d7dfd2;
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      min-height: 30px;
      padding: 5px 12px;
      border-radius: 999px;
      border: 1px solid #cad5c3;
      background: rgba(255, 255, 255, .62);
      color: #4e5c56;
      font-size: 12.5px;
      line-height: 1.35;
    }

    .back-row {
      max-width: 760px;
      margin: 24px auto 0;
    }

    .back-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: #52645c;
      font-size: 14px;
      font-weight: 600;
      transition: color .2s ease;
    }

    .back-link span {
      display: inline-block;
      transition: transform .2s ease;
    }

    .back-link:hover {
      color: #0b0f10;
    }

    .back-link:hover span {
      transform: translateX(4px);
    }

    .empty-state {
      max-width: 620px;
      margin: 0 auto;
      padding: 32px 8px 18px;
      text-align: center;
    }

    .empty-icon {
      width: 52px;
      height: 52px;
      margin: 0 auto 18px;
      border-radius: 50%;
      border: 1px dashed rgba(19, 26, 24, .3);
      display: grid;
      place-items: center;
      color: #5c6a65;
      font-size: 22px;
    }

    .empty-state h2 {
      margin: 0 0 10px;
      color: #131a18;
      font-size: 28px;
      line-height: 1.3;
      font-weight: 700;
    }

    .empty-state p {
      margin: 0 0 20px;
      color: #5c6a65;
      font-size: 15px;
      line-height: 1.8;
    }

    .related-section {
      padding: 76px 0 64px;
      background: var(--ink-900);
      border-top: 1px solid var(--ink-600);
    }

    .section-head {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 20px;
      margin-bottom: 28px;
    }

    .section-head h2 {
      margin: 0;
      color: var(--text-hi);
      font-size: clamp(24px, 2.6vw, 30px);
      line-height: 1.3;
      letter-spacing: -.01em;
      font-weight: 700;
    }

    .section-head p {
      margin: 7px 0 0;
      color: var(--text-mid);
      font-size: 14px;
      line-height: 1.7;
    }

    .related-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 18px;
    }

    .related-card {
      display: flex;
      align-items: stretch;
      gap: 14px;
      min-width: 0;
      padding: 12px;
      border-radius: 14px;
      border: 1px solid var(--ink-600);
      background: var(--ink-700);
      box-shadow: 0 12px 30px -24px rgba(0, 0, 0, .9);
      transition: transform .22s ease, border-color .22s ease, background .22s ease, box-shadow .22s ease;
    }

    .related-card:hover {
      transform: translateY(-3px);
      border-color: rgba(201, 245, 60, .5);
      background: #1d2729;
      box-shadow: 0 18px 38px -24px rgba(201, 245, 60, .22);
    }

    .related-thumb {
      width: 116px;
      flex: 0 0 116px;
      aspect-ratio: 4 / 3;
      border-radius: 10px;
      overflow: hidden;
      background: var(--ink-800);
    }

    .related-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .35s ease;
    }

    .related-card:hover .related-thumb img {
      transform: scale(1.03);
    }

    .related-body {
      min-width: 0;
      padding: 2px 0;
    }

    .related-body h3 {
      margin: 0 0 7px;
      color: var(--text-hi);
      font-size: 15.5px;
      line-height: 1.5;
      font-weight: 600;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .related-body time {
      color: var(--text-mid);
      font-size: 12px;
      line-height: 1.5;
      font-family: var(--font-num);
      font-variant-numeric: tabular-nums;
    }

    .cta-wrap {
      padding: 0 0 84px;
      background: var(--ink-900);
    }

    .cta-band {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 26px;
      padding: 30px 34px;
      border-radius: 18px;
      border: 1px solid rgba(201, 245, 60, .36);
      background:
        linear-gradient(135deg, rgba(201, 245, 60, .09), rgba(11, 15, 16, 0) 55%),
        var(--ink-800);
      box-shadow: 0 0 50px -24px rgba(201, 245, 60, .45);
    }

    .cta-band h2 {
      margin: 0 0 8px;
      color: var(--text-hi);
      font-size: clamp(22px, 2.4vw, 28px);
      line-height: 1.3;
      letter-spacing: -.01em;
      font-weight: 700;
    }

    .cta-band p {
      max-width: 670px;
      margin: 0;
      color: var(--text-mid);
      font-size: 14.5px;
      line-height: 1.75;
    }

    .cta-actions {
      flex: 0 0 auto;
    }

    .site-foot {
      position: relative;
      padding: 60px 0 24px;
      background: var(--ink-900);
      border-top: 1px solid var(--ink-600);
    }

    .site-foot::before {
      content: "";
      position: absolute;
      top: -1px;
      left: 0;
      right: 0;
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(201, 245, 60, .68), transparent);
      pointer-events: none;
    }

    .foot-grid {
      display: grid;
      grid-template-columns: 1.6fr .9fr 1fr;
      gap: 40px;
    }

    .foot-brand .brand {
      margin-bottom: 16px;
    }

    .foot-brand p {
      max-width: 370px;
      margin: 0;
      color: var(--text-mid);
      font-size: 14px;
      line-height: 1.8;
    }

    .foot-kw {
      display: inline-flex;
      align-items: center;
      min-height: 28px;
      margin-top: 14px;
      padding: 5px 10px;
      border-radius: 6px;
      border: 1px solid var(--ink-600);
      background: rgba(201, 245, 60, .05);
      color: var(--ball);
      font-size: 12px;
      line-height: 1.3;
    }

    .foot-col h4 {
      margin: 0 0 16px;
      color: var(--text-hi);
      font-size: 14px;
      line-height: 1.4;
      font-weight: 700;
    }

    .foot-col a,
    .foot-col p {
      display: block;
      margin: 0 0 10px;
      color: var(--text-mid);
      font-size: 13.5px;
      line-height: 1.75;
      transition: color .2s ease;
    }

    .foot-col a:hover {
      color: var(--ball);
    }

    .foot-col p:last-child,
    .foot-col a:last-child {
      margin-bottom: 0;
    }

    .foot-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      margin-top: 38px;
      padding-top: 20px;
      border-top: 1px solid var(--ink-600);
      color: var(--text-mid);
      font-size: 12.5px;
      line-height: 1.7;
    }

    .foot-bottom p {
      margin: 0;
    }

    .foot-bottom p:first-child {
      font-family: var(--font-num);
      font-variant-numeric: tabular-nums;
    }

    @media (max-width: 1024px) {
      .container {
        padding-left: 20px;
        padding-right: 20px;
      }

      .nav-desktop {
        gap: 17px;
      }

      .nav-link {
        font-size: 13.5px;
      }

      .brand-text strong {
        font-size: 15px;
      }

      .head-inner {
        gap: 16px;
      }

      .paper {
        padding: 44px 40px;
      }

      .related-thumb {
        width: 104px;
        flex-basis: 104px;
      }
    }

    @media (max-width: 920px) {
      .nav-desktop {
        display: none;
      }

      .head-cta {
        display: none;
      }

      .nav-toggle {
        display: inline-flex;
      }

      .head-inner {
        justify-content: space-between;
      }

      .article-head h1 {
        max-width: 100%;
      }
    }

    @media (max-width: 768px) {
      .article-hero {
        padding: 38px 0 26px;
      }

      .article-cover {
        aspect-ratio: 4 / 3;
        margin-top: 24px;
      }

      .article-section {
        padding: 38px 0 58px;
      }

      .paper {
        padding: 34px 24px;
        border-radius: 16px;
      }

      .article-body {
        font-size: 16px;
        line-height: 1.9;
      }

      .breadcrumb .current {
        max-width: 100%;
        white-space: normal;
      }

      .related-section {
        padding: 56px 0 46px;
      }

      .section-head {
        display: block;
      }

      .related-grid {
        grid-template-columns: 1fr;
      }

      .cta-wrap {
        padding-bottom: 56px;
      }

      .cta-band {
        display: block;
        padding: 24px;
      }

      .cta-actions {
        margin-top: 18px;
      }

      .cta-actions .btn {
        width: 100%;
      }

      .foot-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 30px;
      }

      .foot-brand {
        grid-column: 1 / -1;
      }

      .foot-bottom {
        display: block;
      }

      .foot-bottom p + p {
        margin-top: 8px;
      }
    }

    @media (max-width: 520px) {
      .container {
        padding-left: 16px;
        padding-right: 16px;
      }

      .head-inner {
        min-height: 66px;
      }

      .brand-mark {
        width: 34px;
        height: 34px;
        flex-basis: 34px;
      }

      .brand-mark svg {
        width: 21px;
        height: 21px;
      }

      .brand-text strong {
        font-size: 14px;
      }

      .brand-text em {
        font-size: 9.5px;
        letter-spacing: .12em;
      }

      .nav-toggle {
        width: 40px;
        height: 40px;
      }

      .drawer {
        padding-left: 16px;
        padding-right: 16px;
      }

      .article-hero {
        padding: 30px 0 22px;
      }

      .article-head h1 {
        margin-top: 16px;
        font-size: 30px;
      }

      .article-meta {
        gap: 6px 13px;
        font-size: 12.5px;
      }

      .article-cover {
        aspect-ratio: 16 / 11;
        border-radius: 14px;
      }

      .paper {
        padding: 28px 18px;
        border-radius: 14px;
      }

      .article-body {
        font-size: 15.5px;
      }

      .article-body h2 {
        font-size: 23px;
      }

      .article-body h3 {
        font-size: 18px;
      }

      .article-body blockquote {
        padding: 14px 16px;
      }

      .article-tags {
        margin-top: 30px;
      }

      .related-card {
        gap: 12px;
        padding: 10px;
      }

      .related-thumb {
        width: 96px;
        flex-basis: 96px;
      }

      .related-body h3 {
        font-size: 14.5px;
      }

      .cta-band {
        padding: 22px 18px;
        border-radius: 16px;
      }

      .foot-grid {
        grid-template-columns: 1fr;
      }

      .foot-brand {
        grid-column: auto;
      }

      .site-foot {
        padding-top: 46px;
      }
    }

    @media (prefers-reduced-motion: reduce) {
      *,
      *::before,
      *::after {
        scroll-behavior: auto !important;
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
      }
    }

/* roulang page: category3 */
:root{
    --ink-900:#0B0F10;
    --ink-800:#12181A;
    --ink-700:#1A2325;
    --ink-600:#2A3538;
    --ball:#C9F53C;
    --ball-deep:#A8DC16;
    --signal:#25E3C0;
    --flare:#FF5A2B;
    --paper:#F6F8F3;
    --paper-2:#E8EDE3;
    --text-hi:#F2F7F3;
    --text-mid:#A6B3AE;
    --paper-ink:#131A18;
    --paper-mid:#5C6A65;
    --radius:16px;
    --radius-sm:12px;
    --radius-xs:10px;
    --shadow-dark:0 18px 40px -22px rgba(0,0,0,.85);
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--ink-900);
    color:var(--text-hi);
    font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
    font-size:16.5px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4,h5,p,figure,ul,ol{margin:0;}
  ul,ol{padding:0;list-style:none;}
  a{color:inherit;text-decoration:none;}
  img{display:block;max-width:100%;}
  button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
  input,select,textarea{font:inherit;}
  ::selection{background:rgba(201,245,60,.32);color:#0B0F10;}
  :focus-visible{outline:2px solid var(--signal);outline-offset:3px;border-radius:6px;}
  ::-webkit-scrollbar{width:10px;height:10px;}
  ::-webkit-scrollbar-track{background:var(--ink-800);}
  ::-webkit-scrollbar-thumb{background:#33403f;border-radius:999px;border:2px solid var(--ink-800);}
  ::-webkit-scrollbar-thumb:hover{background:var(--ball-deep);}

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

  /* ============ 顶部导航 ============ */
  .site-head{
    position:sticky;top:0;z-index:60;
    background:rgba(11,15,16,.92);
    -webkit-backdrop-filter:blur(12px);
    backdrop-filter:blur(12px);
    border-bottom:1px solid var(--ink-600);
  }
  .site-head::after{
    content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
    background:linear-gradient(90deg,transparent,rgba(201,245,60,.85),transparent);
    opacity:.75;pointer-events:none;
  }
  .head-inner{display:flex;align-items:center;gap:20px;height:74px;}

  .brand{display:flex;align-items:center;gap:10px;flex:none;}
  .brand-mark{
    width:34px;height:34px;flex:none;
    display:flex;align-items:center;justify-content:center;
    color:var(--ball);
    border:1px solid rgba(201,245,60,.35);
    border-radius:var(--radius-sm);
    background:rgba(201,245,60,.08);
  }
  .brand-mark svg{width:20px;height:20px;}
  .brand-text{display:flex;flex-direction:column;line-height:1.15;}
  .brand-text strong{font-size:16px;font-weight:800;letter-spacing:.01em;color:var(--text-hi);}
  .brand-text em{font-style:normal;font-size:11px;letter-spacing:.28em;color:var(--text-mid);}

  .nav-desktop{display:flex;align-items:center;gap:4px;margin-left:auto;}
  .nav-link{
    position:relative;padding:9px 14px;border-radius:999px;
    font-size:14.5px;color:var(--text-mid);
    transition:color .2s ease,background .2s ease,box-shadow .2s ease;
  }
  .nav-link::after{
    content:"";position:absolute;left:50%;bottom:3px;width:0;height:2px;
    background:var(--ball);border-radius:2px;transform:translateX(-50%);
    transition:width .25s ease;
  }
  .nav-link:hover{color:var(--text-hi);}
  .nav-link:hover::after{width:8px;}
  .nav-link.is-active{
    color:var(--ball);
    background:rgba(201,245,60,.12);
    box-shadow:0 0 12px rgba(201,245,60,.22);
  }
  .nav-link.is-active::after{width:0;}

  .head-cta{margin-left:10px;}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:12px 24px;border-radius:999px;border:1px solid transparent;
    font-size:15px;font-weight:700;letter-spacing:.01em;
    transition:transform .22s ease,background .22s ease,color .22s ease,box-shadow .22s ease,border-color .22s ease;
  }
  .btn-sm{padding:9px 18px;font-size:14px;}
  .btn-primary{background:var(--ball);color:#0B0F10;}
  .btn-primary:hover{
    background:var(--ball-deep);transform:translateY(-2px);
    box-shadow:0 10px 28px -10px rgba(201,245,60,.55),0 0 0 1px rgba(201,245,60,.35);
  }
  .btn-primary:active{transform:translateY(0);background:#96c912;}
  .btn-ghost{border-color:rgba(201,245,60,.5);color:var(--ball);background:transparent;}
  .btn-ghost:hover{background:rgba(201,245,60,.1);transform:translateY(-2px);}
  .btn-ghost:active{transform:translateY(0);}
  .btn-arrow{gap:6px;}
  .btn-arrow .arw{transition:transform .22s ease;display:inline-block;}
  .btn-arrow:hover .arw{transform:translateX(4px);}

  .nav-toggle{
    display:none;width:42px;height:42px;flex:none;
    flex-direction:column;align-items:center;justify-content:center;gap:4px;
    border:1px solid var(--ink-600);border-radius:var(--radius-sm);
    transition:border-color .2s ease;
  }
  .nav-toggle:hover{border-color:rgba(201,245,60,.5);}
  .nav-toggle span{display:block;width:18px;height:2px;background:var(--text-hi);border-radius:2px;}

  .drawer{
    display:none;position:absolute;left:0;right:0;top:100%;
    background:rgba(11,15,16,.985);
    border-bottom:1px solid var(--ink-600);
    padding:10px 24px 20px;
    box-shadow:var(--shadow-dark);
  }
  .drawer.open{display:block;}
  .drawer a{
    display:flex;align-items:center;justify-content:space-between;
    height:48px;padding:0 4px;
    border-bottom:1px solid var(--ink-700);
    color:var(--text-mid);font-size:15px;
    transition:color .2s ease,padding-left .2s ease;
  }
  .drawer a::after{content:"›";font-size:18px;color:var(--ink-600);}
  .drawer a:hover{color:var(--ball);padding-left:8px;}
  .drawer a.is-active{color:var(--ball);}
  .drawer .btn{
    margin-top:16px;height:auto;border-bottom:0;color:#0B0F10;padding:13px 20px;
    justify-content:center;
  }
  .drawer .btn::after{display:none;}

  /* ============ 内页首屏 ============ */
  .cat-hero{
    position:relative;overflow:hidden;
    padding:66px 0 58px;
    border-bottom:1px solid var(--ink-600);
  }
  .cat-hero::before{
    content:"";position:absolute;inset:0;
    background-image:url(/assets/images/backpic/back-1.webp);
    background-size:cover;background-position:center;
    opacity:.26;
  }
  .cat-hero::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(115deg,rgba(11,15,16,.97) 0%,rgba(11,15,16,.86) 55%,rgba(11,15,16,.58) 100%);
  }
  .cat-hero-in{
    position:relative;z-index:2;
    display:grid;grid-template-columns:1.35fr .82fr;gap:48px;align-items:center;
  }
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    padding:5px 12px;border-radius:6px;
    font-size:13px;letter-spacing:.06em;
    color:var(--ball);
    border:1px solid rgba(201,245,60,.35);
    background:rgba(201,245,60,.08);
  }
  .eyebrow::before{
    content:"";width:6px;height:6px;border-radius:50%;background:var(--ball);
    box-shadow:0 0 8px var(--ball);
  }
  h1{
    font-size:46px;line-height:1.16;font-weight:800;letter-spacing:-.01em;
    margin-top:18px;max-width:15em;
  }
  .lead{
    margin-top:16px;max-width:48ch;
    color:var(--text-mid);font-size:16.5px;line-height:1.85;
  }
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
  .cat-hero-fig{
    position:relative;border-radius:var(--radius);overflow:hidden;
    border:1px solid rgba(201,245,60,.18);
    box-shadow:var(--shadow-dark);
  }
  .cat-hero-fig img{width:100%;aspect-ratio:4/3;object-fit:cover;}
  .cat-hero-fig figcaption{
    position:absolute;left:12px;bottom:12px;
    padding:5px 10px;border-radius:6px;
    font-size:12.5px;color:var(--text-hi);
    background:rgba(11,15,16,.8);
    border:1px solid var(--ink-600);
  }

  /* 四步进度条 */
  .steps{
    display:grid;grid-template-columns:repeat(4,1fr);gap:12px;
    margin-top:40px;position:relative;z-index:2;
  }
  .step{
    position:relative;
    padding:14px 16px;border-radius:var(--radius-sm);
    border:1px solid var(--ink-600);
    background:rgba(18,24,26,.78);
    transition:border-color .22s ease,background .22s ease,transform .22s ease;
  }
  .step:hover{border-color:rgba(201,245,60,.4);transform:translateY(-2px);}
  .step.is-current{
    border-color:rgba(201,245,60,.6);
    background:rgba(201,245,60,.1);
    box-shadow:0 0 18px -6px rgba(201,245,60,.45);
  }
  .step-num{
    display:block;font-size:12.5px;letter-spacing:.16em;color:var(--ball);
    font-variant-numeric:tabular-nums;font-weight:700;
  }
  .step-label{display:block;margin-top:4px;font-size:14px;color:var(--text-hi);}
  .step:not(:last-child)::after{
    content:"";position:absolute;right:-12px;top:50%;width:12px;height:1px;
    background:var(--ink-600);
  }

  /* ============ 通用板块 ============ */
  .section{padding:88px 0;}
  .section-tight{padding:64px 0;}
  .sec-head{
    display:flex;justify-content:space-between;align-items:flex-end;gap:32px;
    margin-bottom:44px;
  }
  .sec-title{font-size:32px;font-weight:700;line-height:1.3;}
  .sec-desc{margin-top:10px;max-width:54ch;color:var(--text-mid);font-size:15px;line-height:1.85;}
  .sec-link{color:var(--ball);font-size:14.5px;font-weight:600;white-space:nowrap;}
  .sec-link:hover{color:var(--ball-deep);}

  /* 图文交错 */
  .zig-row{
    display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;
  }
  .zig-row + .zig-row{margin-top:68px;}
  .zig-row.is-flip .zig-fig{order:2;}
  .zig-fig{position:relative;}
  .zig-fig img{
    width:100%;aspect-ratio:4/3;object-fit:cover;
    border-radius:var(--radius);
    border:1px solid var(--ink-600);
    box-shadow:var(--shadow-dark);
    transition:transform .35s ease,border-color .35s ease;
  }
  .zig-row:hover .zig-fig img{transform:scale(1.015);border-color:rgba(201,245,60,.35);}
  .zig-fig figcaption{
    margin-top:10px;font-size:13px;color:var(--text-mid);line-height:1.7;
  }
  .zig-index{
    display:inline-block;font-size:13px;font-weight:700;letter-spacing:.16em;
    color:rgba(201,245,60,.7);font-variant-numeric:tabular-nums;
  }
  .zig-body h3{font-size:22px;font-weight:700;line-height:1.4;margin-top:8px;}
  .zig-body p{margin-top:14px;color:var(--text-mid);font-size:16px;line-height:1.9;}
  .zig-list{margin-top:18px;display:grid;gap:10px;}
  .zig-list li{
    position:relative;padding-left:20px;font-size:15px;color:var(--text-hi);line-height:1.8;
  }
  .zig-list li::before{
    content:"";position:absolute;left:0;top:.72em;
    width:7px;height:7px;border-radius:50%;
    background:var(--ball);box-shadow:0 0 8px rgba(201,245,60,.65);
  }

  /* 要点速查（纸白） */
  .quickbar{
    background:var(--paper);
    color:var(--paper-ink);
    border-radius:20px;
    padding:38px 40px;
    box-shadow:0 18px 40px -28px rgba(19,26,24,.5);
  }
  .quickbar h2{font-size:24px;font-weight:700;line-height:1.35;color:var(--paper-ink);}
  .quickbar .hint{margin-top:10px;font-size:14.5px;line-height:1.85;color:var(--paper-mid);max-width:62ch;}
  .quick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-top:30px;}
  .quick-item{border-top:2px solid rgba(19,26,24,.14);padding-top:16px;}
  .quick-item strong{display:block;font-size:16px;font-weight:700;color:var(--paper-ink);}
  .quick-item span{display:block;margin-top:8px;font-size:14.5px;line-height:1.85;color:var(--paper-mid);}

  /* 折叠说明 */
  .acc{border-top:1px solid var(--ink-600);margin-top:8px;}
  .acc details{border-bottom:1px solid var(--ink-600);}
  .acc summary{
    display:flex;align-items:center;justify-content:space-between;gap:24px;
    padding:20px 4px;font-size:17px;font-weight:600;
    list-style:none;cursor:pointer;
    transition:color .2s ease;
  }
  .acc summary::-webkit-details-marker{display:none;}
  .acc summary:hover{color:var(--ball);}
  .acc summary::after{
    content:"+";flex:none;font-size:22px;font-weight:400;color:var(--ball);
    transition:transform .25s ease;
  }
  .acc details[open] summary::after{transform:rotate(45deg);}
  .acc .acc-body{padding:0 4px 22px;color:var(--text-mid);font-size:15.5px;line-height:1.9;max-width:74ch;}

  .back-top{
    display:inline-flex;align-items:center;gap:6px;
    margin-top:32px;font-size:14px;font-weight:600;color:var(--ball);
  }
  .back-top:hover{color:var(--ball-deep);}

  /* CTA 横条 */
  .cta-band{
    display:flex;align-items:center;justify-content:space-between;gap:36px;
    padding:36px 40px;border-radius:20px;
    border:1px solid rgba(201,245,60,.4);
    background:radial-gradient(120% 150% at 0% 0%,rgba(201,245,60,.15),rgba(18,24,26,.92) 62%);
    box-shadow:var(--shadow-dark);
  }
  .cta-band h2{font-size:26px;font-weight:700;line-height:1.35;}
  .cta-band p{margin-top:8px;color:var(--text-mid);font-size:15px;line-height:1.85;max-width:56ch;}

  /* ============ 页脚 ============ */
  .site-foot{position:relative;background:var(--ink-900);border-top:1px solid var(--ink-600);padding:64px 0 28px;}
  .site-foot::before{
    content:"";position:absolute;left:0;right:0;top:-1px;height:1px;
    background:linear-gradient(90deg,transparent,rgba(201,245,60,.75),transparent);
  }
  .foot-grid{display:grid;grid-template-columns:1.6fr .9fr 1fr;gap:48px;}
  .foot-brand p{margin-top:16px;max-width:42ch;color:var(--text-mid);font-size:14.5px;line-height:1.9;}
  .foot-kw{
    display:inline-block;margin-top:16px;padding:4px 10px;border-radius:6px;
    font-size:12.5px;color:var(--ball);
    border:1px solid rgba(201,245,60,.35);background:rgba(201,245,60,.06);
  }
  .foot-col{display:flex;flex-direction:column;gap:10px;}
  .foot-col h4{margin-bottom:6px;font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--text-hi);}
  .foot-col a{color:var(--text-mid);font-size:14.5px;transition:color .2s ease,padding-left .2s ease;}
  .foot-col a:hover{color:var(--ball);padding-left:4px;}
  .foot-col p{margin:0;color:var(--text-mid);font-size:14px;line-height:1.8;}
  .foot-bottom{
    display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;
    margin-top:44px;padding-top:22px;border-top:1px solid var(--ink-700);
  }
  .foot-bottom p{font-size:13px;color:var(--text-mid);line-height:1.8;}

  /* ============ 响应式 ============ */
  @media (max-width:1024px){
    .nav-desktop{display:none;}
    .head-cta{display:none;}
    .nav-toggle{display:flex;}
    .head-inner{justify-content:space-between;}
    .cat-hero{padding:52px 0 44px;}
    .cat-hero-in{grid-template-columns:1fr;gap:32px;}
    h1{font-size:36px;max-width:100%;}
    .zig-row{grid-template-columns:1fr;gap:28px;}
    .zig-row.is-flip .zig-fig{order:0;}
    .quick-grid{grid-template-columns:1fr;gap:20px;}
    .foot-grid{grid-template-columns:1fr 1fr;gap:36px;}
    .cta-band{flex-direction:column;align-items:flex-start;gap:22px;}
    .section{padding:72px 0;}
    .sec-head{flex-direction:column;align-items:flex-start;gap:14px;}
  }
  @media (max-width:768px){
    body{font-size:16px;}
    .container{padding:0 20px;}
    .section{padding:56px 0;}
    .sec-title{font-size:24px;}
    .steps{grid-template-columns:1fr 1fr;margin-top:32px;}
    .step:not(:last-child)::after{display:none;}
    .cat-hero-fig figcaption{font-size:12px;}
    .quickbar{padding:26px 22px;}
    .quickbar h2{font-size:20px;}
    .zig-row + .zig-row{margin-top:48px;}
    .zig-body h3{font-size:19px;}
    .cta-band{padding:26px 22px;}
    .cta-band h2{font-size:21px;}
    .foot-grid{grid-template-columns:1fr;gap:30px;}
    .foot-bottom{flex-direction:column;gap:10px;}
  }
  @media (max-width:520px){
    .container{padding:0 16px;}
    h1{font-size:28px;line-height:1.22;}
    .lead{font-size:15.5px;}
    .hero-actions{flex-direction:column;}
    .hero-actions .btn{width:100%;}
    .steps{grid-template-columns:1fr;}
    .acc summary{font-size:15.5px;gap:16px;}
    .acc .acc-body{font-size:15px;}
    .foot-brand p{font-size:14px;}
  }

/* roulang page: category2 */
:root{
  --ink-900:#0B0F10;
  --ink-800:#12181A;
  --ink-700:#1A2325;
  --ink-600:#2A3538;
  --ball:#C9F53C;
  --ball-deep:#A8DC16;
  --signal:#25E3C0;
  --flare:#FF5A2B;
  --paper:#F6F8F3;
  --paper-2:#E8EDE3;
  --text-hi:#F2F7F3;
  --text-mid:#A6B3AE;
  --radius-card:16px;
  --radius-img:12px;
  --radius-input:10px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-num:"Barlow","Oswald","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--text-hi);
  background:var(--ink-900);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
::selection{background:rgba(201,245,60,.28);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--ink-900)}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,var(--ball),#3c5411);border-radius:999px}
::-webkit-scrollbar-thumb:hover{background:var(--ball-deep)}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
.container.container{max-width:1200px}

/* ============ 顶部导航 ============ */
.site-head{
  position:sticky;top:0;z-index:80;
  background:rgba(11,15,16,.92);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--ink-600);
}
.site-head::after{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,transparent,var(--ball),transparent);
  opacity:.75;
}
.head-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  color:var(--ball);
  background:rgba(201,245,60,.1);
  border:1px solid rgba(201,245,60,.32);
}
.brand-mark svg{width:20px;height:20px}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:.01em;color:var(--text-hi)}
.brand-text em{
  font-style:normal;font-size:11px;letter-spacing:.22em;
  color:var(--ball);text-transform:uppercase;font-family:var(--font-num);
}
.nav-desktop{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;display:inline-block;
  padding:9px 14px;border-radius:999px;
  font-size:14.5px;color:var(--text-mid);
  transition:color .18s ease,background-color .18s ease,box-shadow .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:4px;
  width:0;height:2px;border-radius:2px;background:var(--ball);
  transform:translateX(-50%);transition:width .22s ease;
}
.nav-link:hover{color:var(--text-hi)}
.nav-link:hover::after{width:8px}
.nav-link.is-active{
  color:var(--ball);
  background:rgba(201,245,60,.12);
  box-shadow:0 0 12px rgba(201,245,60,.28);
}
.nav-link.is-active::after{width:0}
.head-cta{flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;margin-left:auto;
  border-radius:12px;border:1px solid var(--ink-600);
  background:var(--ink-800);cursor:pointer;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-hi);transition:transform .2s ease,opacity .2s ease}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.nav-toggle:focus-visible{outline:2px solid var(--signal);outline-offset:3px}
.drawer{display:none}
.drawer.open{
  display:flex;flex-direction:column;gap:2px;
  padding:12px 24px 20px;
  background:var(--ink-900);
  border-top:1px solid var(--ink-600);
}
.drawer.open a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 12px;border-radius:12px;
  color:var(--text-mid);font-size:15px;
}
.drawer.open a::after{content:"›";color:var(--ink-600);font-size:18px}
.drawer.open a:hover{background:var(--ink-800);color:var(--text-hi)}
.drawer.open a.is-active{color:var(--ball);background:rgba(201,245,60,.12)}
.drawer.open a.btn{margin-top:10px;justify-content:center;color:#0B0F10}
.drawer.open a.btn::after{display:none}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease;
}
.btn-primary{background:var(--ball);color:#0B0F10;box-shadow:0 12px 28px -18px rgba(201,245,60,.95)}
.btn-primary:hover{background:var(--ball-deep);transform:translateY(-2px);box-shadow:0 16px 32px -16px rgba(201,245,60,.8)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px -12px rgba(201,245,60,.9)}
.btn-ghost{background:transparent;border-color:rgba(201,245,60,.55);color:var(--ball)}
.btn-ghost:hover{background:rgba(201,245,60,.1);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn:focus-visible{outline:2px solid var(--signal);outline-offset:3px}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

/* ============ 首屏 ============ */
.cat-hero{
  position:relative;
  padding:48px 0 60px;
  background-image:
    linear-gradient(90deg,rgba(11,15,16,.96) 0%,rgba(11,15,16,.88) 46%,rgba(11,15,16,.96) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--ink-600);
}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(0,1fr);gap:32px;align-items:start}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-mid);margin-bottom:18px}
.crumbs a{color:var(--text-mid);transition:color .18s ease}
.crumbs a:hover{color:var(--ball)}
.crumbs span{color:var(--ink-600)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 12px;border-radius:6px;
  font-size:13px;letter-spacing:.06em;color:var(--ball);
  background:rgba(201,245,60,.08);
  border:1px solid rgba(201,245,60,.35);
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--signal);animation:pulse 1.8s ease-out infinite}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(37,227,192,.55)}
  70%{box-shadow:0 0 0 8px rgba(37,227,192,0)}
  100%{box-shadow:0 0 0 0 rgba(37,227,192,0)}
}
.page-title{
  margin-top:18px;
  font-size:clamp(30px,4.2vw,48px);
  font-weight:800;line-height:1.16;letter-spacing:-.01em;
  color:var(--text-hi);
}
.page-lead{
  margin-top:16px;max-width:660px;
  font-size:16.5px;line-height:1.85;color:var(--text-mid);
}
.filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chip{
  padding:8px 16px;border-radius:999px;
  font-size:13.5px;color:var(--text-mid);
  background:var(--ink-800);
  border:1px solid var(--ink-600);
  cursor:pointer;transition:all .18s ease;
}
.chip:hover{color:var(--text-hi);border-color:rgba(201,245,60,.45)}
.chip.is-on{color:var(--ball);border-color:rgba(201,245,60,.7);background:rgba(201,245,60,.1);box-shadow:0 0 14px rgba(201,245,60,.16)}
.chip:focus-visible{outline:2px solid var(--signal);outline-offset:3px}
.hero-side{
  padding:22px;
  border-radius:var(--radius-card);
  background:rgba(18,24,26,.94);
  border:1px solid var(--ink-600);
  box-shadow:0 18px 40px -24px rgba(0,0,0,.9);
}
.hero-side h2{font-size:16px;font-weight:700;color:var(--text-hi);letter-spacing:.02em}
.hero-side ul{margin-top:14px;display:grid;gap:12px}
.hero-side li{
  font-size:13.5px;line-height:1.75;color:var(--text-mid);
  padding-left:14px;position:relative;
}
.hero-side li::before{
  content:"";position:absolute;left:0;top:9px;
  width:5px;height:5px;border-radius:50%;background:var(--signal);
}
.hero-side li strong{display:block;color:var(--text-hi);font-weight:600;font-size:13.5px}
.hero-side .btn{margin-top:18px;width:100%}

/* ============ 板块通用 ============ */
.sec{padding:88px 0}
.sec--tight{padding:72px 0}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:26px}
.sec-head h2{font-size:clamp(23px,2.6vw,30px);font-weight:700;line-height:1.3;color:var(--text-hi)}
.sec-head p{font-size:14px;color:var(--text-mid)}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--ink-600) 20%,var(--ink-600) 80%,transparent)}

/* ============ 主体布局 ============ */
.main-grid{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:32px;align-items:start}
.tl-block + .tl-block{margin-top:38px}
.tl-block-head{
  display:flex;align-items:baseline;gap:12px;flex-wrap:wrap;
  padding-bottom:12px;margin-bottom:8px;
  border-bottom:1px solid var(--ink-600);
}
.tl-block-head h3{font-size:19px;font-weight:700;color:var(--text-hi)}
.tl-block-head span{font-size:13px;color:var(--text-mid);font-family:var(--font-num);letter-spacing:.02em}
.tl{position:relative;padding-left:0}
.tl::before{
  content:"";position:absolute;left:11px;top:14px;bottom:14px;width:1px;
  background:linear-gradient(180deg,rgba(201,245,60,.55),var(--ink-600) 28%,var(--ink-600));
}
.tl-item{position:relative;padding-left:38px}
.tl-item::before{
  content:"";position:absolute;left:5px;top:26px;
  width:13px;height:13px;border-radius:50%;
  background:var(--ink-900);border:1px solid var(--ink-600);
  transition:all .2s ease;
}
.tl-item.is-live::before{
  background:var(--ball);border-color:var(--ball);
  box-shadow:0 0 0 4px rgba(201,245,60,.16);
}
.tl-item.is-soon::before{background:var(--ink-800);border-color:rgba(201,245,60,.65)}
.tl-row{
  display:grid;grid-template-columns:76px minmax(0,1fr) auto;
  gap:16px;align-items:center;
  padding:15px 16px;border-radius:14px;
  border:1px solid transparent;
  transition:background-color .18s ease,border-color .18s ease,transform .18s ease;
}
.tl-row:hover{
  background:var(--ink-800);
  border-color:rgba(201,245,60,.35);
  transform:translateX(3px);
}
.tl-time{
  font-family:var(--font-num);font-size:20px;font-weight:600;
  letter-spacing:.02em;color:var(--text-hi);font-variant-numeric:tabular-nums;
}
.tl-item.is-live .tl-time{color:var(--ball)}
.tl-main strong{display:block;font-size:15.5px;font-weight:600;color:var(--text-hi);line-height:1.5}
.tl-main em{
  display:block;margin-top:2px;font-style:normal;
  font-size:13px;color:var(--text-mid);
}
.tl-main em b{color:var(--text-hi);font-weight:600;font-variant-numeric:tabular-nums;font-family:var(--font-num)}
.tl-badge{
  padding:4px 10px;border-radius:6px;white-space:nowrap;
  font-size:12px;line-height:1.6;color:var(--text-mid);
  background:var(--ink-700);border:1px solid var(--ink-600);
}
.tl-badge.is-live{color:#06120F;font-weight:700;background:var(--signal);border-color:var(--signal)}
.tl-badge.is-soon{color:var(--ball);background:rgba(201,245,60,.08);border-color:rgba(201,245,60,.5)}
.tl-badge.is-done{color:var(--text-mid)}
.tl-badge.is-next{color:var(--text-mid);border-style:dashed}

/* ============ 侧栏 ============ */
.side{position:sticky;top:96px;display:grid;gap:16px}
.side-card{
  padding:20px;border-radius:var(--radius-card);
  background:var(--ink-800);border:1px solid var(--ink-600);
}
.side-card h3{font-size:15px;font-weight:700;color:var(--text-hi);margin-bottom:14px}
.quick-links{display:grid;gap:8px}
.quick-links a{
  display:flex;align-items:center;justify-content:space-between;
  padding:11px 14px;border-radius:12px;
  font-size:14px;color:var(--text-hi);
  background:var(--ink-700);border:1px solid var(--ink-600);
  transition:all .18s ease;
}
.quick-links a::after{content:"→";color:var(--ball);font-size:14px;transition:transform .18s ease}
.quick-links a:hover{border-color:rgba(201,245,60,.55);background:rgba(201,245,60,.08);transform:translateX(2px)}
.quick-links a:hover::after{transform:translateX(3px)}
.quick-links a:focus-visible{outline:2px solid var(--signal);outline-offset:3px}
.side-card--tips ul{display:grid;gap:12px}
.side-card--tips li{
  position:relative;padding-left:16px;
  font-size:13.5px;line-height:1.7;color:var(--text-mid);
}
.side-card--tips li::before{
  content:"";position:absolute;left:0;top:8px;
  width:6px;height:6px;border-radius:50%;background:var(--ball);
}
.side-card--tips li strong{color:var(--text-hi);font-weight:600}
.side-card--cta{
  background:linear-gradient(150deg,rgba(201,245,60,.14),rgba(18,24,26,.96) 55%);
  border-color:rgba(201,245,60,.36);
}
.side-card--cta p{font-size:14px;color:var(--text-hi);line-height:1.7;margin-bottom:14px}
.side-card--cta .btn{width:100%}

/* ============ 说明卡组 ============ */
.note-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:20px}
.note-card{
  padding:24px;border-radius:var(--radius-card);
  background:var(--paper);color:#131A18;
  border:1px solid rgba(19,26,24,.08);
  box-shadow:0 14px 34px -26px rgba(0,0,0,.8);
}
.note-card h2{font-size:21px;font-weight:800;line-height:1.35;color:#131A18}
.note-card h3{font-size:17px;font-weight:700;line-height:1.4;color:#131A18}
.note-card p{margin-top:10px;font-size:14.5px;line-height:1.85;color:#5C6A65}
.note-card--wide{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:22px;align-items:center;padding:0;overflow:hidden}
.note-card--wide img{width:100%;height:100%;object-fit:cover;border-radius:0}
.note-card--wide .note-body{padding:24px 24px 24px 0}
.note-card--wide .note-body p{margin-top:10px;font-size:14.5px;line-height:1.85;color:#5C6A65}
.dot-list{margin-top:14px;display:grid;gap:9px}
.dot-list li{
  position:relative;padding-left:16px;
  font-size:13.5px;line-height:1.7;color:#5C6A65;
}
.dot-list li::before{
  content:"";position:absolute;left:0;top:8px;
  width:6px;height:6px;border-radius:50%;background:#8CC216;
}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.6fr);gap:40px;align-items:start}
.faq-intro h2{font-size:clamp(23px,2.6vw,30px);font-weight:700;line-height:1.3;color:var(--text-hi)}
.faq-intro p{margin-top:12px;font-size:14.5px;line-height:1.85;color:var(--text-mid)}
.faq-list{border-top:1px solid var(--ink-600)}
.faq-item{border-bottom:1px solid var(--ink-600)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 0;cursor:pointer;list-style:none;
  font-size:16.5px;font-weight:600;color:var(--text-hi);
  transition:color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--ball)}
.faq-item summary:focus-visible{outline:2px solid var(--signal);outline-offset:4px;border-radius:6px}
.faq-icon{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--ink-600);color:var(--ball);font-size:15px;line-height:1;
  transition:transform .22s ease,border-color .22s ease;
}
.faq-item[open] .faq-icon{transform:rotate(45deg);border-color:rgba(201,245,60,.6)}
.faq-body{padding:0 0 18px;font-size:14.5px;line-height:1.85;color:var(--text-mid);max-width:720px}

/* ============ CTA 横条 ============ */
.cta-band{padding:0 0 88px}
.cta-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  padding:30px 34px;border-radius:20px;
  background:linear-gradient(120deg,rgba(201,245,60,.12),rgba(18,24,26,.96) 60%);
  border:1px solid rgba(201,245,60,.4);
  box-shadow:0 22px 48px -34px rgba(201,245,60,.5);
}
.cta-inner h2{font-size:clamp(20px,2.4vw,26px);font-weight:700;line-height:1.35;color:var(--text-hi)}
.cta-inner p{margin-top:8px;font-size:14px;color:var(--text-mid)}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ============ 页脚 ============ */
.site-foot{background:var(--ink-900);border-top:1px solid var(--ink-600);position:relative}
.site-foot::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--ball),transparent);opacity:.7;
}
.foot-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px;
  padding:56px 0 40px;
}
.foot-brand p{margin-top:16px;font-size:13.5px;line-height:1.85;color:var(--text-mid);max-width:420px}
.foot-kw{
  display:inline-block;margin-top:16px;padding:5px 12px;border-radius:6px;
  font-size:12px;color:var(--ball);
  background:rgba(201,245,60,.08);border:1px solid rgba(201,245,60,.28);
}
.foot-col h4{font-size:14px;font-weight:700;color:var(--text-hi);margin-bottom:14px;letter-spacing:.04em}
.foot-col a,.foot-col p{
  display:block;font-size:13.5px;line-height:1.7;color:var(--text-mid);
  padding:5px 0;transition:color .18s ease;
}
.foot-col a:hover{color:var(--ball)}
.foot-col a:focus-visible{outline:2px solid var(--signal);outline-offset:3px;border-radius:4px}
.foot-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  padding:20px 0 30px;border-top:1px solid var(--ink-600);
}
.foot-bottom p{font-size:13px;color:var(--text-mid);line-height:1.7}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .nav-desktop{display:none}
  .head-cta{display:none}
  .nav-toggle{display:flex}
  .main-grid{grid-template-columns:1fr;gap:28px}
  .side{position:static}
  .hero-grid{grid-template-columns:1fr;gap:24px}
  .faq-wrap{grid-template-columns:1fr;gap:22px}
  .note-grid{grid-template-columns:1fr 1fr}
  .note-card--wide{grid-column:1 / -1;grid-template-columns:1fr}
  .note-card--wide img{height:200px}
  .note-card--wide .note-body{padding:22px 24px}
  .sec{padding:72px 0}
  .cta-band{padding-bottom:72px}
  .foot-grid{grid-template-columns:1.4fr 1fr;gap:32px}
}
@media (max-width:768px){
  .container{padding-left:20px;padding-right:20px}
  .head-inner{height:64px;gap:12px}
  .brand-text strong{font-size:15px}
  .tl-row{grid-template-columns:64px minmax(0,1fr);gap:10px 14px;padding:14px 12px}
  .tl-badge{grid-column:2;justify-self:start}
  .tl-time{font-size:18px}
  .page-lead{font-size:15.5px}
  .sec{padding:56px 0}
  .sec--tight{padding:48px 0}
  .faq-item summary{font-size:15.5px;padding:16px 0}
  .cta-inner{padding:24px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  .foot-grid{grid-template-columns:1fr;gap:26px;padding:44px 0 32px}
}
@media (max-width:520px){
  .container{padding-left:16px;padding-right:16px}
  .note-grid{grid-template-columns:1fr}
  .filter-row .chip{flex:1 1 calc(50% - 10px);text-align:center;padding:9px 10px;font-size:13px}
  .tl-item{padding-left:32px}
  .tl::before{left:9px}
  .tl-item::before{left:3px}
  .hero-side{padding:18px}
  .tl-row{grid-template-columns:56px minmax(0,1fr)}
  .tl-time{font-size:17px}
}

/* roulang page: category4 */
:root{
  --ink-900:#0B0F10;
  --ink-800:#12181A;
  --ink-700:#1A2325;
  --ink-600:#2A3538;
  --ball:#C9F53C;
  --ball-deep:#A8DC16;
  --signal:#25E3C0;
  --flare:#FF5A2B;
  --paper:#F6F8F3;
  --paper-2:#E8EDE3;
  --text-hi:#F2F7F3;
  --text-mid:#A6B3AE;
  --r-card:16px;
  --r-img:12px;
  --r-input:10px;
  --shadow-neon:0 18px 40px -22px rgba(0,0,0,.85);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:"Barlow","Oswald","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text-hi);
  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-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
::selection{background:rgba(201,245,60,.28);color:#fff;}
::-webkit-scrollbar{width:9px;height:9px;}
::-webkit-scrollbar-track{background:#0B0F10;}
::-webkit-scrollbar-thumb{background:#2A3538;border-radius:99px;}
::-webkit-scrollbar-thumb:hover{background:var(--ball);}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (max-width:1024px){.container{padding:0 20px;}}
@media (max-width:640px){.container{padding:0 16px;}}

/* ---------- Header ---------- */
.site-head{
  position:fixed;
  top:0;left:0;right:0;
  z-index:80;
  background:rgba(11,15,16,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.site-head::after{
  content:"";
  position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(201,245,60,.65),transparent);
  pointer-events:none;
}
.head-inner{display:flex;align-items:center;gap:20px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;
  display:grid;place-items:center;
  border-radius:12px;
  background:rgba(201,245,60,.10);
  border:1px solid rgba(201,245,60,.35);
  color:var(--ball);
}
.brand-mark svg{width:24px;height:24px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:.02em;color:var(--text-hi);}
.brand-text em{font-style:normal;font-size:11.5px;letter-spacing:.16em;color:var(--ball);}
.nav-desktop{display:flex;align-items:center;gap:2px;margin-left:12px;}
.nav-link{
  position:relative;
  padding:9px 14px;
  border-radius:999px;
  font-size:14.5px;
  color:var(--text-mid);
  transition:color .22s ease,background .22s ease;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;left:50%;bottom:4px;
  width:0;height:2px;border-radius:2px;
  background:var(--ball);
  transform:translateX(-50%);
  transition:width .24s ease;
}
.nav-link:hover{color:var(--text-hi);background:rgba(255,255,255,.04);}
.nav-link:hover::after{width:14px;}
.nav-link.is-active{
  color:var(--ball);
  background:rgba(201,245,60,.12);
  text-shadow:0 0 12px rgba(201,245,60,.5);
}
.nav-link.is-active::after{width:0;}
.head-cta{margin-left:auto;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--ink-600);
  border-radius:12px;
  background:transparent;
  padding:0;
  position:relative;
}
.nav-toggle span{
  position:absolute;left:12px;right:12px;height:2px;border-radius:2px;
  background:var(--text-hi);
  transition:transform .25s ease,opacity .25s ease;
}
.nav-toggle span:nth-child(1){top:15px;}
.nav-toggle span:nth-child(2){top:21px;}
.nav-toggle span:nth-child(3){top:27px;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.drawer{display:none;}
@media (max-width:1023px){
  .nav-desktop{display:none;}
  .head-cta{display:none;}
  .nav-toggle{display:block;margin-left:auto;}
  .drawer{
    display:none;
    border-top:1px solid var(--ink-600);
    background:rgba(11,15,16,.98);
    padding:8px 20px 22px;
    max-height:calc(100vh - 72px);
    overflow-y:auto;
  }
  .drawer.is-open{display:block;}
  .drawer > a{
    display:flex;align-items:center;justify-content:space-between;
    min-height:48px;
    padding:0 4px;
    color:var(--text-mid);
    font-size:15.5px;
    border-bottom:1px solid rgba(42,53,56,.7);
  }
  .drawer > a::after{content:"›";font-size:20px;color:var(--ink-600);}
  .drawer > a.is-active{color:var(--ball);}
  .drawer > a.is-active::after{color:var(--ball);}
  .drawer > a.btn{margin-top:16px;border-bottom:0;justify-content:center;}
  .drawer > a.btn::after{content:"";}
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;
  border-radius:999px;
  border:1px solid transparent;
  font-size:15px;font-weight:600;
  letter-spacing:.01em;
  transition:transform .22s ease,background .22s ease,box-shadow .22s ease,color .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--ball);color:#0B0F10;box-shadow:0 10px 26px -18px rgba(201,245,60,.9);}
.btn-primary:hover{background:var(--ball-deep);transform:translateY(-2px);box-shadow:0 14px 32px -14px rgba(201,245,60,.75);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;border-color:rgba(201,245,60,.45);color:var(--ball);}
.btn-ghost:hover{background:rgba(201,245,60,.10);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{padding:9px 18px;font-size:13.5px;}
.btn-block{width:100%;}
.btn:focus-visible{outline:2px solid var(--signal);outline-offset:3px;}

/* ---------- Badges / chips ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;
  border-radius:6px;
  font-size:12.5px;
  letter-spacing:.04em;
  background:var(--ink-700);
  border:1px solid var(--ink-600);
  color:var(--text-mid);
}
.badge-live{color:var(--signal);border-color:rgba(37,227,192,.35);background:rgba(37,227,192,.08);}
.badge-flare{background:var(--flare);color:#fff;border-color:transparent;font-weight:600;}
.dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--signal);
  box-shadow:0 0 0 0 rgba(37,227,192,.6);
  animation:pulse 1.8s infinite;
  display:inline-block;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(37,227,192,.55);}
  70%{box-shadow:0 0 0 9px rgba(37,227,192,0);}
  100%{box-shadow:0 0 0 0 rgba(37,227,192,0);}
}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 16px;
  border-radius:999px;
  border:1px solid var(--ink-600);
  background:var(--ink-800);
  color:var(--text-mid);
  font-size:13.5px;
  transition:all .22s ease;
}
.chip:hover{color:var(--text-hi);border-color:rgba(201,245,60,.45);transform:translateY(-2px);}
.chip.is-current{
  color:var(--ball);
  border-color:var(--ball);
  background:rgba(201,245,60,.10);
}
.chip:focus-visible{outline:2px solid var(--signal);outline-offset:3px;}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;
  padding:132px 0 64px;
  background:
    radial-gradient(900px 420px at 82% -12%,rgba(201,245,60,.10),transparent 62%),
    radial-gradient(700px 380px at 8% 8%,rgba(37,227,192,.08),transparent 60%),
    var(--ink-900);
  overflow:hidden;
}
.cat-hero::after{
  content:"";
  position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(201,245,60,.45),transparent);
}
.cat-hero-inner{
  display:grid;
  grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);
  gap:48px;
  align-items:center;
}
.crumb{font-size:13px;color:var(--text-mid);letter-spacing:.02em;margin-bottom:18px;}
.crumb a{color:var(--text-mid);transition:color .2s ease;}
.crumb a:hover{color:var(--ball);}
.crumb span{color:var(--text-hi);}
.cat-hero h1{
  font-size:46px;
  line-height:1.16;
  font-weight:800;
  letter-spacing:-.01em;
  margin:16px 0 18px;
}
.cat-hero h1 .hl{color:var(--ball);}
.cat-lead{
  font-size:16.5px;
  line-height:1.85;
  color:var(--text-mid);
  max-width:600px;
  margin-bottom:24px;
}
.search-wrap{
  display:flex;
  align-items:center;
  gap:10px;
  background:var(--ink-800);
  border:1px solid var(--ink-600);
  border-radius:999px;
  padding:6px 6px 6px 20px;
  max-width:520px;
  margin-bottom:18px;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.search-wrap:focus-within{
  border-color:var(--ball);
  box-shadow:0 0 0 3px rgba(201,245,60,.16);
}
.search-wrap input{
  flex:1;
  min-width:0;
  background:transparent;
  border:0;
  outline:none;
  font-size:14.5px;
  color:var(--text-hi);
  padding:8px 0;
}
.search-wrap input::placeholder{color:rgba(166,179,174,.6);}
.search-wrap button{
  border:0;
  border-radius:999px;
  padding:9px 20px;
  background:var(--ball);
  color:#0B0F10;
  font-weight:600;
  font-size:14px;
  transition:background .22s ease,transform .22s ease;
}
.search-wrap button:hover{background:var(--ball-deep);transform:translateY(-1px);}
.hero-mini{
  position:relative;
  border-radius:var(--r-card);
  border:1px solid var(--ink-600);
  background:var(--ink-800);
  overflow:hidden;
  box-shadow:var(--shadow-neon);
}
.hero-mini img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  transition:transform .5s ease;
}
.hero-mini:hover img{transform:scale(1.03);}
.hero-mini-note{
  display:flex;align-items:center;gap:8px;
  padding:12px 16px;
  font-size:13px;
  color:var(--text-mid);
  border-top:1px solid var(--ink-600);
  background:rgba(11,15,16,.6);
}
@media (max-width:1024px){
  .cat-hero{padding:112px 0 52px;}
  .cat-hero-inner{grid-template-columns:1fr;gap:32px;}
  .cat-hero h1{font-size:36px;}
  .hero-mini{max-width:520px;}
}
@media (max-width:640px){
  .cat-hero{padding:100px 0 44px;}
  .cat-hero h1{font-size:29px;line-height:1.28;}
  .cat-lead{font-size:15.5px;}
  .search-wrap{flex-direction:column;border-radius:16px;padding:14px;}
  .search-wrap button{width:100%;}
}

/* ---------- Sections ---------- */
.section{padding:88px 0;}
.section-sm{padding:64px 0;}
.section-line{border-top:1px solid var(--ink-600);}
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:40px;flex-wrap:wrap;
}
.sec-title{font-size:32px;font-weight:700;line-height:1.3;letter-spacing:-.01em;}
.sec-title .accent{color:var(--ball);}
.sec-desc{color:var(--text-mid);font-size:15px;margin-top:10px;max-width:640px;line-height:1.85;}
.sec-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--ball);font-size:14px;font-weight:600;
  transition:gap .22s ease,color .22s ease;
}
.sec-link:hover{gap:12px;color:var(--ball-deep);}
.sec-link:focus-visible{outline:2px solid var(--signal);outline-offset:3px;border-radius:6px;}
@media (max-width:768px){
  .section{padding:64px 0;}
  .section-sm{padding:48px 0;}
  .sec-title{font-size:24px;}
}

/* ---------- Help layout ---------- */
.help-grid{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:40px;
  align-items:start;
}
.faq-group{margin-bottom:44px;}
.faq-group:last-child{margin-bottom:0;}
.faq-group h3{
  font-size:20px;
  font-weight:600;
  color:var(--text-hi);
  display:flex;align-items:center;gap:10px;
  margin-bottom:8px;
}
.faq-group h3::before{
  content:"";
  width:4px;height:18px;border-radius:3px;
  background:var(--ball);
  box-shadow:0 0 12px rgba(201,245,60,.6);
}
.faq-group .group-desc{
  font-size:13.5px;
  color:var(--text-mid);
  margin:6px 0 14px 14px;
}
.faq-item{border-bottom:1px solid var(--ink-600);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 0;
  font-size:17px;font-weight:600;
  color:var(--text-hi);
  cursor:pointer;
  list-style:none;
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--ball);}
.faq-item summary:focus-visible{outline:2px solid var(--signal);outline-offset:2px;border-radius:6px;}
.faq-item summary::after{
  content:"+";
  flex:0 0 26px;
  width:26px;height:26px;
  display:grid;place-items:center;
  border-radius:8px;
  border:1px solid var(--ink-600);
  color:var(--ball);
  font-size:17px;
  font-weight:400;
  line-height:1;
  transition:transform .25s ease,border-color .25s ease,background .25s ease;
}
.faq-item[open] summary::after{
  transform:rotate(45deg);
  border-color:rgba(201,245,60,.5);
  background:rgba(201,245,60,.10);
}
.faq-body{
  padding:0 0 20px;
  color:var(--text-mid);
  font-size:15px;
  line-height:1.85;
  max-width:640px;
}
.faq-body strong{color:var(--text-hi);font-weight:600;}

.side-card{
  position:sticky;
  top:100px;
  background:var(--ink-800);
  border:1px solid var(--ink-600);
  border-radius:var(--r-card);
  padding:26px 24px;
  box-shadow:var(--shadow-neon);
}
.side-card h3{font-size:19px;font-weight:600;margin-bottom:8px;}
.side-card p.tip{font-size:13.5px;color:var(--text-mid);line-height:1.75;margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{
  display:block;
  font-size:13px;
  color:var(--text-mid);
  margin-bottom:7px;
  letter-spacing:.02em;
}
.field input,
.field textarea,
.field select{
  width:100%;
  background:var(--ink-900);
  border:1px solid var(--ink-600);
  border-radius:var(--r-input);
  padding:11px 14px;
  font-size:14.5px;
  color:var(--text-hi);
  outline:none;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.field input::placeholder,
.field textarea::placeholder{color:rgba(166,179,174,.55);}
.field input:focus,
.field textarea:focus,
.field select:focus{
  border-color:var(--ball);
  box-shadow:0 0 0 3px rgba(201,245,60,.16);
}
.field textarea{resize:vertical;min-height:88px;}
.form-privacy{
  font-size:12.5px;
  color:rgba(166,179,174,.85);
  line-height:1.7;
  margin-top:12px;
}
.side-meta{
  margin-top:22px;
  padding-top:18px;
  border-top:1px solid var(--ink-600);
  display:flex;flex-direction:column;gap:9px;
  font-size:13px;color:var(--text-mid);
}
.side-meta span{display:flex;align-items:center;gap:8px;}
.side-meta i{
  width:6px;height:6px;border-radius:50%;
  background:var(--ball);flex:0 0 6px;
  font-style:normal;
}
@media (max-width:1023px){
  .help-grid{grid-template-columns:1fr;gap:36px;}
  .side-card{position:static;}
}

/* ---------- Support strip ---------- */
.support-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr;
  gap:20px;
}
.support-card{
  position:relative;
  border-radius:var(--r-card);
  border:1px solid var(--ink-600);
  background:var(--ink-700);
  padding:26px 24px;
  overflow:hidden;
  transition:transform .25s ease,border-color .25s ease;
}
.support-card:hover{transform:translateY(-4px);border-color:rgba(201,245,60,.5);}
.support-card h4{font-size:17px;font-weight:600;margin-bottom:8px;}
.support-card p{font-size:14px;color:var(--text-mid);line-height:1.8;}
.support-card .big-num{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:34px;
  font-weight:700;
  color:var(--ball);
  line-height:1.1;
  margin-bottom:6px;
  letter-spacing:.02em;
}
.support-card.is-feature{
  background-image:
    linear-gradient(90deg,rgba(11,15,16,.92) 12%,rgba(11,15,16,.72) 100%),
    url("/assets/images/coverpic/cover-6.png");
  background-size:cover;
  background-position:center;
  border-color:rgba(201,245,60,.3);
  padding:30px 26px;
}
.support-card.is-feature h4{font-size:20px;}
@media (max-width:900px){
  .support-grid{grid-template-columns:1fr 1fr;}
  .support-card.is-feature{grid-column:1 / -1;}
}
@media (max-width:600px){
  .support-grid{grid-template-columns:1fr;}
}

/* ---------- Flash bar ---------- */
.flash-bar{
  display:flex;align-items:center;justify-content:space-between;gap:26px;
  padding:22px 28px;
  border-radius:var(--r-card);
  border:1px solid rgba(255,90,43,.35);
  background:
    radial-gradient(400px 160px at 6% 40%,rgba(255,90,43,.18),transparent 70%),
    var(--ink-800);
  flex-wrap:wrap;
}
.flash-left{display:flex;align-items:center;gap:20px;flex-wrap:wrap;}
.flash-time{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:32px;
  font-weight:700;
  letter-spacing:.06em;
  color:var(--text-hi);
  line-height:1;
}
.flash-time em{font-style:normal;color:var(--flare);}
.flash-text{font-size:14px;color:var(--text-mid);line-height:1.7;}
.flash-text strong{display:block;color:var(--text-hi);font-size:15.5px;font-weight:600;margin-bottom:2px;}
@media (max-width:640px){
  .flash-bar{padding:20px;gap:18px;}
  .flash-bar .btn{width:100%;}
  .flash-time{font-size:26px;}
}

/* ---------- Footer ---------- */
.site-foot{
  position:relative;
  background:var(--ink-900);
  border-top:1px solid var(--ink-600);
  padding:64px 0 28px;
  margin-top:20px;
}
.site-foot::before{
  content:"";
  position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(201,245,60,.55),transparent);
}
.foot-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1.2fr;
  gap:44px;
  padding-bottom:40px;
  border-bottom:1px solid var(--ink-600);
}
.foot-brand .brand{margin-bottom:18px;}
.foot-brand p{font-size:14px;color:var(--text-mid);line-height:1.85;max-width:420px;}
.foot-kw{
  display:inline-block;
  margin-top:16px;
  padding:5px 12px;
  border-radius:6px;
  border:1px solid var(--ink-600);
  background:var(--ink-800);
  color:var(--text-mid);
  font-size:12.5px;
  letter-spacing:.03em;
}
.foot-col h4{
  font-size:14px;
  font-weight:600;
  color:var(--text-hi);
  margin-bottom:16px;
  letter-spacing:.04em;
}
.foot-col a,
.foot-col p{
  display:block;
  font-size:13.5px;
  color:var(--text-mid);
  line-height:1.9;
  margin-bottom:8px;
  transition:color .2s ease,transform .2s ease;
}
.foot-col a:hover{color:var(--ball);transform:translateX(3px);}
.foot-col a:focus-visible{outline:2px solid var(--signal);outline-offset:2px;border-radius:4px;}
.foot-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding-top:22px;
  flex-wrap:wrap;
}
.foot-bottom p{font-size:13px;color:var(--text-mid);line-height:1.8;}
@media (max-width:900px){
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .foot-brand{grid-column:1 / -1;}
}
@media (max-width:600px){
  .foot-grid{grid-template-columns:1fr;}
  .site-foot{padding:48px 0 24px;}
}