/* roulang page: index */
:root{
  --bg-0:#0A0D0C;
  --bg-1:#101614;
  --bg-2:#171F1C;
  --neon:#00E29A;
  --neon-soft:#7CFFCB;
  --hot:#FF4D2D;
  --lime:#D8FF3E;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --text-1:#F2F6F4;
  --text-2:#A8B5B0;
  --text-3:#6E7C77;
  --r-card:14px;
  --r-btn:10px;
  --shadow-card:0 8px 24px rgba(0,0,0,.45);
  --shadow-neon:0 0 28px rgba(0,226,154,.22);
  --ease:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
input{background:none;border:0;outline:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
::selection{background:rgba(0,226,154,.28);color:#fff}
:focus-visible{outline:2px solid var(--neon);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,13,12,.86);
  border-bottom:1px solid var(--line);
  transition:background var(--ease),backdrop-filter var(--ease);
}
.site-header.is-scrolled{background:rgba(10,13,12,.94);backdrop-filter:blur(14px)}
.header-inner{display:flex;align-items:center;gap:28px;height:64px}
.brand{display:flex;flex-direction:column;line-height:1.1;flex-shrink:0}
.brand-mark{font-size:18px;font-weight:800;letter-spacing:.04em;color:var(--text-1)}
.brand-mark em{font-style:normal;color:var(--neon)}
.brand-sub{font-size:11px;letter-spacing:.32em;color:var(--text-3);margin-top:3px}
.nav-desktop{display:flex;align-items:center;gap:4px;flex:1;min-width:0}
.nav-link{
  position:relative;padding:0 14px;height:64px;display:inline-flex;align-items:center;
  font-size:14.5px;color:var(--text-2);transition:color var(--ease);white-space:nowrap;
}
.nav-link:hover{color:var(--text-1)}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);
  width:0;height:2px;background:var(--neon);box-shadow:0 0 12px rgba(0,226,154,.8);
  transition:width var(--ease);
}
.nav-link.active{color:var(--neon)}
.nav-link.active::after{width:calc(100% - 28px)}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.menu-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:var(--bg-1);cursor:pointer;align-items:center;justify-content:center;gap:4px;flex-direction:column;
}
.menu-toggle span{display:block;width:16px;height:1.5px;background:var(--text-1);transition:var(--ease)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:14.5px;font-weight:600;letter-spacing:.02em;cursor:pointer;
  border:1px solid transparent;transition:all var(--ease);white-space:nowrap;
}
.btn-hot{background:var(--hot);color:#fff;box-shadow:0 6px 18px rgba(255,77,45,.28)}
.btn-hot:hover{filter:brightness(1.08);transform:translateY(-2px)}
.btn-neon{background:transparent;color:var(--neon);border-color:rgba(0,226,154,.55)}
.btn-neon:hover{background:rgba(0,226,154,.08);border-color:var(--neon);box-shadow:var(--shadow-neon)}
.btn-ghost{background:transparent;color:var(--text-2);padding:0 12px}
.btn-ghost:hover{color:var(--neon)}
.btn-block{width:100%}
.link-more{
  font-size:14px;color:var(--neon);display:inline-flex;align-items:center;gap:6px;
  border-bottom:1px solid rgba(0,226,154,.35);padding-bottom:2px;transition:var(--ease);
}
.link-more:hover{gap:10px;border-color:var(--neon)}

/* ---------- 倒计时条 ---------- */
.countdown-bar{
  background:linear-gradient(90deg,var(--hot) 0%,#ff7a3d 45%,var(--lime) 100%);
  color:#0A0D0C;
}
.countdown-bar.is-ended{background:#2A322F;color:var(--text-2)}
.countdown-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:44px;padding:6px 0}
.cd-tag{
  font-size:12px;font-weight:800;letter-spacing:.12em;
  background:rgba(10,13,12,.82);color:#fff;padding:4px 12px;border-radius:999px;
}
.countdown-bar.is-ended .cd-tag{background:rgba(255,255,255,.1);color:var(--text-2)}
.cd-label{font-size:13.5px;font-weight:700;display:flex;align-items:center;gap:10px}
.cd-clock{display:flex;align-items:center;gap:0;font-variant-numeric:tabular-nums}
.cd-unit{
  min-width:58px;text-align:center;padding:0 8px;border-left:1px solid rgba(10,13,12,.25);
}
.cd-unit:first-child{border-left:0}
.cd-num{display:block;font-size:17px;font-weight:800;line-height:1.2}
.cd-txt{display:block;font-size:10.5px;letter-spacing:.1em;opacity:.78}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;opacity:.22;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,13,12,.72) 0%,rgba(10,13,12,.92) 70%,var(--bg-0) 100%);
}
.hero-stripes{
  position:absolute;inset:0;opacity:.35;pointer-events:none;
  background-image:repeating-linear-gradient(45deg,rgba(0,226,154,.05) 0 1px,transparent 1px 14px);
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:7fr 5fr;gap:56px;padding:72px 0 80px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.14em;
  color:var(--neon);border:1px solid rgba(0,226,154,.35);background:rgba(0,226,154,.07);
  padding:5px 14px;border-radius:999px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--neon);box-shadow:0 0 10px var(--neon)}
.hero h1{
  font-size:clamp(30px,4.4vw,52px);line-height:1.22;font-weight:800;letter-spacing:-.01em;
  margin:22px 0 18px;
}
.hero h1 .hl{
  background:linear-gradient(96deg,var(--neon) 0%,var(--neon-soft) 60%,var(--lime) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{font-size:17px;color:var(--text-2);max-width:560px;line-height:1.9}
.hero-cta{display:flex;gap:14px;margin:30px 0 34px;flex-wrap:wrap}
.hero-stats{display:flex;gap:0;border-top:1px solid var(--line);padding-top:22px}
.stat{padding-right:30px;margin-right:30px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0;margin-right:0;padding-right:0}
.stat b{display:block;font-size:24px;font-weight:800;color:var(--neon);font-variant-numeric:tabular-nums;line-height:1.2}
.stat span{font-size:12.5px;color:var(--text-3)}
.hero-visual{position:relative}
.hero-visual .back-frame{
  border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-card);transform:translate(18px,18px);
}
.hero-visual .back-frame img{width:100%;height:300px;object-fit:cover;filter:saturate(.9)}
.hero-visual .front-card{
  position:relative;margin-top:-118px;margin-left:-16px;width:78%;
  border-radius:var(--r-card);overflow:hidden;border:1px solid rgba(0,226,154,.4);
  box-shadow:0 12px 40px rgba(0,0,0,.6),var(--shadow-neon);background:var(--bg-1);
  clip-path:polygon(0 0,100% 0,100% calc(100% - 16px),calc(100% - 16px) 100%,0 100%);
}
.hero-visual .front-card img{width:100%;height:186px;object-fit:cover}
.hero-visual .front-card figcaption{padding:14px 16px;font-size:13px;color:var(--text-2);border-top:1px solid var(--line)}

/* ---------- 板块通用 ---------- */
.section{padding:76px 0;border-bottom:1px solid var(--line)}
.section-alt{background:var(--bg-1)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:42px}
.section-head h2{font-size:clamp(24px,2.6vw,32px);font-weight:800;letter-spacing:-.01em;line-height:1.3}
.section-head p{color:var(--text-2);font-size:15px;margin-top:10px;max-width:640px}
.section-head .left{position:relative;padding-left:16px}
.section-head .left::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;border-radius:2px;
  background:linear-gradient(180deg,var(--neon),rgba(0,226,154,0));
}

/* ---------- 轨道卖点 ---------- */
.track-row{display:grid;grid-template-columns:86px 1fr;gap:24px;align-items:start;padding:30px 0;border-top:1px solid var(--line)}
.track-row:first-of-type{border-top:0;padding-top:0}
.track-num{
  font-size:40px;font-weight:800;line-height:1;color:transparent;
  -webkit-text-stroke:1px rgba(0,226,154,.7);font-variant-numeric:tabular-nums;
}
.track-num small{display:block;-webkit-text-stroke:0;font-size:11px;letter-spacing:.2em;color:var(--text-3);margin-top:10px;font-weight:600}
.track-body{display:grid;grid-template-columns:5fr 7fr;gap:30px;align-items:center}
.track-row.reverse .track-body{grid-template-columns:7fr 5fr}
.track-row.reverse .track-media{order:2}
.track-media img{
  width:100%;height:230px;object-fit:cover;border-radius:var(--r-card);
  border:1px solid var(--line);transition:var(--ease);
}
.track-row:hover .track-media img{border-color:rgba(0,226,154,.45);box-shadow:var(--shadow-neon)}
.track-text h3{font-size:20px;font-weight:700;margin-bottom:12px}
.track-text p{color:var(--text-2);font-size:15.5px}
.track-list{margin-top:16px;display:flex;flex-wrap:wrap;gap:10px}
.chip{
  font-size:12px;letter-spacing:.05em;color:var(--neon);
  background:rgba(0,226,154,.08);border:1px solid rgba(0,226,154,.28);
  padding:4px 12px;border-radius:999px;
}
.chip-hot{color:var(--hot);background:rgba(255,77,45,.1);border-color:rgba(255,77,45,.3)}

/* ---------- Bento 图墙 ---------- */
.bento{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:186px;gap:20px}
.bento-item{
  position:relative;overflow:hidden;border-radius:var(--r-card);
  border:1px solid var(--line);background:var(--bg-2);transition:var(--ease);
}
.bento-item:nth-child(even){transform:translateY(14px)}
.bento-item:nth-child(1){grid-column:span 2;grid-row:span 2}
.bento-item:nth-child(2){grid-column:span 2}
.bento-item:nth-child(5){grid-column:span 2}
.bento-item img{width:100%;height:100%;object-fit:cover;transition:transform 420ms ease-out}
.bento-item:hover{border-color:var(--neon);box-shadow:var(--shadow-neon);transform:translateY(-2px)}
.bento-item:nth-child(even):hover{transform:translateY(10px)}
.bento-item:hover img{transform:scale(1.03)}
.bento-cap{
  position:absolute;left:0;right:0;bottom:0;padding:32px 18px 16px;
  background:linear-gradient(180deg,rgba(10,13,12,0) 0%,rgba(10,13,12,.92) 100%);
}
.bento-cap strong{display:block;font-size:15.5px;font-weight:700}
.bento-cap span{display:block;font-size:12.5px;color:var(--text-2);margin-top:4px}

/* ---------- 表单 CTA ---------- */
.signup-wrap{display:grid;grid-template-columns:7fr 5fr;gap:32px;align-items:start}
.form-card,.rule-card{
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);padding:32px;
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:span 2}
.field label{font-size:13px;color:var(--text-2);letter-spacing:.02em}
.field input{
  height:46px;padding:0 14px;background:var(--bg-2);border:1px solid var(--line);
  border-radius:var(--r-btn);color:var(--text-1);transition:var(--ease);
}
.field input::placeholder{color:var(--text-3)}
.field input:focus{border-color:var(--neon);box-shadow:0 0 0 3px rgba(0,226,154,.16)}
.form-note{font-size:12.5px;color:var(--text-3);margin-top:14px;line-height:1.8}
.form-msg{margin-top:14px;font-size:13.5px;color:var(--neon);display:none}
.form-msg.show{display:block}
.rule-card h3{font-size:19px;font-weight:700;margin-bottom:16px}
.rule-list li{
  display:flex;gap:10px;font-size:14.5px;color:var(--text-2);
  padding:12px 0;border-bottom:1px dashed var(--line);
}
.rule-list li:last-child{border-bottom:0}
.rule-list li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--neon);margin-top:10px;flex-shrink:0;box-shadow:0 0 8px rgba(0,226,154,.7)}
.rule-time{
  margin-top:18px;padding:14px 16px;border-radius:var(--r-btn);
  background:rgba(255,77,45,.08);border:1px solid rgba(255,77,45,.28);
  font-size:13.5px;color:#FFB4A2;
}

/* ---------- 情报条 / 证据 ---------- */
.proof-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.proof-card{
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;transition:var(--ease);
}
.proof-card:hover{border-color:var(--neon);transform:translateY(-2px);box-shadow:var(--shadow-neon)}
.proof-card b{display:block;font-size:30px;font-weight:800;color:var(--neon);font-variant-numeric:tabular-nums}
.proof-card span{display:block;font-size:13px;color:var(--text-2);margin-top:6px}
.quote-block{
  margin-top:32px;padding:26px 30px;background:var(--bg-1);border-radius:var(--r-card);
  border:1px solid var(--line);border-left:3px solid var(--hot);
}
.quote-block p{font-size:16.5px;color:var(--text-1);line-height:1.9}
.quote-block cite{display:block;margin-top:12px;font-size:13px;color:var(--text-3);font-style:normal}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:920px;margin:0 auto}
.faq-item{
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:var(--ease);
}
.faq-item:hover{border-color:rgba(0,226,154,.4)}
.faq-item.open{border-color:rgba(0,226,154,.55);box-shadow:var(--shadow-neon)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--text-1);
}
.faq-item.open .faq-q{color:var(--neon)}
.faq-icon{
  width:26px;height:26px;flex-shrink:0;border-radius:50%;border:1px solid rgba(0,226,154,.45);
  display:flex;align-items:center;justify-content:center;color:var(--neon);font-size:15px;
  transition:transform var(--ease);
}
.faq-item.open .faq-icon{transform:rotate(180deg);background:rgba(0,226,154,.12)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 300ms ease-out}
.faq-a-inner{padding:0 22px 22px;border-left:3px solid var(--neon);margin-left:22px;padding-left:16px}
.faq-a-inner p{font-size:15px;color:var(--text-2)}

/* ---------- 最新动态 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-auto-rows:minmax(120px,auto);gap:22px}
.news-card{
  display:flex;flex-direction:column;background:var(--bg-1);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;transition:var(--ease);
}
.news-card:hover{border-color:var(--neon);transform:translateY(-2px);box-shadow:var(--shadow-neon)}
.news-card figure{overflow:hidden;background:var(--bg-2)}
.news-card figure img{width:100%;height:158px;object-fit:cover;transition:transform 420ms ease-out}
.news-card:hover figure img{transform:scale(1.03)}
.news-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-meta{display:flex;align-items:center;gap:12px;font-size:12px;color:var(--text-3)}
.news-meta .badge{
  font-size:11px;letter-spacing:.05em;color:var(--neon);background:rgba(0,226,154,.08);
  border:1px solid rgba(0,226,154,.28);padding:2px 10px;border-radius:999px;
}
.news-meta time{font-variant-numeric:tabular-nums}
.news-body h3{font-size:16.5px;font-weight:700;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body p{font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card-lg{grid-column:span 2;grid-row:span 2}
.news-card-lg figure img{height:300px}
.news-card-lg .news-body h3{font-size:21px}
.news-card-lg .news-body p{-webkit-line-clamp:3;font-size:15px}
.empty-state{
  text-align:center;padding:56px 24px;background:var(--bg-1);
  border:1px dashed var(--line-strong);border-radius:var(--r-card);
}
.empty-icon{
  width:54px;height:54px;margin:0 auto 18px;border-radius:50%;
  border:1px solid rgba(0,226,154,.5);display:flex;align-items:center;justify-content:center;
  color:var(--neon);font-size:20px;box-shadow:var(--shadow-neon);
}
.empty-state p{color:var(--text-2);margin-bottom:20px;font-size:15px}

/* ---------- 收尾条 ---------- */
.closing{padding:44px 0;background:linear-gradient(90deg,rgba(0,226,154,.09),rgba(255,77,45,.07))}
.closing-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.closing h2{font-size:22px;font-weight:800}
.closing p{font-size:14px;color:var(--text-2);margin-top:6px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.footer-brand p{font-size:13.5px;color:var(--text-2);margin-top:16px;line-height:1.9;max-width:330px}
.footer-title{
  font-size:14px;font-weight:700;color:var(--text-1);margin-bottom:18px;
  position:relative;padding-left:12px;
}
.footer-title::before{content:"";position:absolute;left:0;top:4px;bottom:4px;width:3px;border-radius:2px;background:var(--neon)}
.footer-links li{margin-bottom:11px}
.footer-links a{font-size:13.5px;color:var(--text-2);transition:var(--ease)}
.footer-links a:hover{color:var(--neon);padding-left:4px}
.footer-info li{font-size:13.5px;color:var(--text-2);margin-bottom:11px}
.footer-info b{color:var(--text-1);font-weight:600}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 0;display:flex;align-items:center;
  justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--neon)}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.6);opacity:0;visibility:hidden;
  transition:var(--ease);z-index:70;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,340px);background:var(--bg-1);
  border-left:1px solid var(--line);z-index:80;transform:translateX(100%);
  transition:transform 260ms ease-out;display:flex;flex-direction:column;padding:20px;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line)}
.drawer-close{
  width:36px;height:36px;border-radius:var(--r-btn);background:var(--bg-2);
  border:1px solid var(--line);color:var(--text-2);cursor:pointer;font-size:18px;line-height:1;
}
.drawer-close:hover{color:var(--neon);border-color:var(--neon)}
.drawer-nav{flex:1;overflow-y:auto;padding-top:8px}
.drawer-nav a{
  display:block;padding:15px 4px;font-size:15px;color:var(--text-2);
  border-bottom:1px solid var(--line);transition:var(--ease);
}
.drawer-nav a.active,.drawer-nav a:hover{color:var(--neon)}
.drawer-foot{padding-top:18px;border-top:1px solid var(--line)}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .nav-link{padding:0 10px;font-size:14px}
  .header-actions .btn-ghost{display:none}
}
@media (max-width:1024px){
  .nav-desktop{display:none}
  .menu-toggle{display:flex}
  .hero-inner{grid-template-columns:1fr;gap:44px;padding:56px 0 64px}
  .hero-visual .back-frame img{height:250px}
  .signup-wrap{grid-template-columns:1fr}
  .bento{grid-template-columns:repeat(2,1fr);grid-auto-rows:190px}
  .bento-item:nth-child(1){grid-column:span 2;grid-row:span 2}
  .bento-item:nth-child(2),.bento-item:nth-child(5){grid-column:span 2}
  .bento-item:nth-child(even){transform:none}
  .bento-item:nth-child(even):hover{transform:translateY(-2px)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .news-card-lg{grid-column:span 2}
  .proof-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .section{padding:54px 0}
  .track-row{grid-template-columns:1fr;gap:14px}
  .track-num{font-size:30px}
  .track-body,.track-row.reverse .track-body{grid-template-columns:1fr}
  .track-row.reverse .track-media{order:0}
  .track-media img{height:200px}
  .hero-stats{flex-wrap:wrap;gap:18px 0}
  .stat{padding-right:20px;margin-right:20px}
  .stat b{font-size:20px}
  .form-card,.rule-card{padding:24px}
  .form-grid{grid-template-columns:1fr}
  .field.full{grid-column:span 1}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:30px}
  .closing-inner{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .hero h1{font-size:29px}
  .hero-cta{flex-direction:column}
  .hero-cta .btn{width:100%}
  .bento{grid-template-columns:1fr;grid-auto-rows:200px}
  .bento-item,.bento-item:nth-child(1),.bento-item:nth-child(2),.bento-item:nth-child(5){grid-column:span 1;grid-row:span 1}
  .news-grid{grid-template-columns:1fr}
  .news-card-lg{grid-column:span 1}
  .news-card-lg figure img{height:190px}
  .news-card-lg .news-body h3{font-size:18px}
  .proof-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cd-unit{min-width:48px;padding:0 5px}
  .cd-num{font-size:15px}
  .countdown-inner{flex-wrap:wrap;padding:8px 0}
  .btn{height:48px}
  .header-actions .btn{display:none}
}

/* roulang page: article */
:root{
  --bg-0:#0A0D0C;
  --bg-1:#101614;
  --bg-2:#171F1C;
  --neon:#00E29A;
  --neon-soft:#7CFFCB;
  --hot:#FF4D2D;
  --lime:#D8FF3E;
  --line:rgba(255,255,255,.08);
  --text-1:#F2F6F4;
  --text-2:#A8B5B0;
  --text-3:#6E7C77;
  --radius-card:14px;
  --radius-btn:10px;
  --shadow:0 8px 24px rgba(0,0,0,.45);
  --glow:0 0 28px rgba(0,226,154,.22);
  --ease:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color var(--ease),background var(--ease),border-color var(--ease)}
button,input,textarea,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
::selection{background:rgba(0,226,154,.28);color:#fff}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

.container{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(10,13,12,.9);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:64px}
.brand{display:flex;flex-direction:column;justify-content:center;line-height:1.1;flex-shrink:0}
.brand-mark{font-size:18px;font-weight:700;letter-spacing:.02em;color:var(--text-1)}
.brand-mark em{color:var(--neon);font-style:normal;margin:0 2px}
.brand-sub{font-size:11px;letter-spacing:.2em;color:var(--text-3);margin-top:3px}
.nav-desktop{display:none;align-items:center;gap:2px}
.nav-link{position:relative;padding:9px 14px;font-size:15px;color:var(--text-2);border-radius:10px;white-space:nowrap}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.05)}
.nav-link.active{color:var(--neon)}
.nav-link.active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--neon);box-shadow:0 0 12px var(--neon)}
.header-actions{display:flex;align-items:center;gap:10px}
.header-actions .btn-ghost,.header-actions .btn-neon{display:none}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform var(--ease),background var(--ease),color var(--ease),border-color var(--ease),box-shadow var(--ease),filter var(--ease);
}
.btn:focus-visible{outline:2px solid var(--neon);outline-offset:2px}
.btn-hot{background:var(--hot);color:#fff;box-shadow:0 6px 20px rgba(255,77,45,.28)}
.btn-hot:hover{filter:brightness(1.08);transform:translateY(-2px)}
.btn-neon{border-color:var(--neon);color:var(--neon);background:transparent}
.btn-neon:hover{background:rgba(0,226,154,.1);box-shadow:var(--glow);transform:translateY(-2px)}
.btn-ghost{color:var(--text-2);background:transparent}
.btn-ghost:hover{color:var(--text-1);background:rgba(255,255,255,.05)}
.btn-line{border-color:var(--line);background:var(--bg-1);color:var(--text-1)}
.btn-line:hover{border-color:var(--neon);box-shadow:var(--glow);transform:translateY(-2px)}
.btn-arrow::after{content:"→";transition:transform var(--ease)}
.btn-arrow:hover::after{transform:translateX(4px)}

/* ---------- menu toggle / drawer ---------- */
.menu-toggle{
  display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:0 11px;border:1px solid var(--line);
  border-radius:var(--radius-btn);background:var(--bg-1);cursor:pointer;
}
.menu-toggle span{display:block;height:2px;width:100%;background:var(--text-1);border-radius:2px;transition:transform var(--ease),opacity var(--ease)}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.drawer{
  position:fixed;top:0;right:0;z-index:95;width:302px;max-width:86vw;height:100%;
  background:var(--bg-1);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform 260ms ease-out;
  padding:20px 18px 32px;overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--line)}
.drawer-title{font-size:15px;font-weight:700;letter-spacing:.04em}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:var(--bg-2);color:var(--text-2);cursor:pointer;font-size:18px;line-height:1}
.drawer-close:hover{color:var(--neon);border-color:var(--neon)}
.drawer-nav{margin-top:8px}
.drawer-nav a{display:block;padding:14px 4px;font-size:15px;color:var(--text-2);border-bottom:1px solid var(--line)}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--neon)}
.drawer-cta{margin-top:20px;display:grid;gap:10px}
.drawer-cta .btn{width:100%}
.drawer-mask{position:fixed;inset:0;z-index:90;background:rgba(4,6,5,.68);opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease)}
.drawer-mask.open{opacity:1;visibility:visible}

/* ---------- article hero ---------- */
.article-hero{
  position:relative;
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,13,12,.82) 0%,rgba(10,13,12,.94) 60%,var(--bg-0) 100%),
             url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.article-hero::after{
  content:"";position:absolute;right:-60px;top:-40px;width:280px;height:280px;
  background:repeating-linear-gradient(45deg,rgba(0,226,154,.07) 0 1px,transparent 1px 14px);
  pointer-events:none;
}
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--text-3);padding:22px 0 0;position:relative;z-index:1}
.crumb a:hover{color:var(--neon)}
.crumb .sep{opacity:.55}
.crumb .current{max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text-2)}
.article-head{position:relative;z-index:1;padding:26px 0 36px;max-width:900px}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:999px;
  font-size:12px;letter-spacing:.05em;border:1px solid rgba(0,226,154,.34);
  background:rgba(0,226,154,.1);color:var(--neon);
}
.badge-hot{border-color:rgba(255,77,45,.36);background:rgba(255,77,45,.12);color:#FF8A72}
.article-title{
  font-size:clamp(26px,4.2vw,40px);line-height:1.32;font-weight:800;
  letter-spacing:.01em;margin:18px 0 0;color:var(--text-1);
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:0;margin-top:18px;font-size:13px;color:var(--text-2)}
.meta-row .meta-item{padding:0 14px;border-left:1px solid var(--line)}
.meta-row .meta-item:first-child{padding-left:0;border-left:0}
.meta-row .meta-item em{font-style:normal;color:var(--text-3);margin-right:6px}
.cover-figure{margin:26px 0 0;position:relative;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);max-width:960px}
.cover-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* ---------- article layout ---------- */
.article-section{padding:48px 0 8px}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:44px;align-items:start}
.article-main{min-width:0}
.article-body{max-width:760px;margin:0 auto;font-size:17px;line-height:1.9;color:#DCE4E0}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 22px}
.article-body > p:first-of-type{font-size:18px;color:#E7EEEB}
.article-body h2{
  position:relative;font-size:26px;line-height:1.4;font-weight:700;color:var(--text-1);
  margin:42px 0 18px;padding-left:16px;scroll-margin-top:88px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;border-radius:2px;
  background:var(--neon);box-shadow:0 0 12px rgba(0,226,154,.6);
}
.article-body h3{font-size:20px;font-weight:700;color:var(--text-1);margin:32px 0 14px;scroll-margin-top:88px}
.article-body h4{font-size:17px;font-weight:700;color:var(--neon-soft);margin:26px 0 12px}
.article-body ul,.article-body ol{margin:0 0 22px}
.article-body li{position:relative;padding-left:24px;margin-bottom:10px}
.article-body ul > li::before{
  content:"";position:absolute;left:2px;top:12px;width:8px;height:8px;border-radius:2px;
  background:var(--neon);box-shadow:0 0 10px rgba(0,226,154,.5);
}
.article-body ol{counter-reset:item}
.article-body ol > li{counter-increment:item}
.article-body ol > li::before{
  counter:item decimal-leading-zero;
  content:counter(item,decimal-leading-zero);
  position:absolute;left:0;top:2px;font-size:12px;font-weight:700;letter-spacing:.04em;
  color:var(--neon);font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;background:var(--bg-1);
  border-left:3px solid var(--hot);border-radius:0 12px 12px 0;color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body a{color:var(--neon);border-bottom:1px solid rgba(0,226,154,.4)}
.article-body a:hover{color:var(--neon-soft);border-bottom-color:var(--neon-soft)}
.article-body strong{color:var(--text-1)}
.article-body img{border-radius:12px;border:1px solid var(--line);margin:24px auto}
.article-body hr{border:0;height:1px;background:var(--line);margin:36px 0}
.article-body table{
  width:100%;border-collapse:collapse;font-size:15px;margin:24px 0;
  display:block;overflow-x:auto;border-radius:12px;
}
.article-body th{background:var(--bg-2);color:var(--text-1);font-weight:700}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left;white-space:nowrap}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.022)}
.article-body code{background:var(--bg-2);color:var(--neon-soft);padding:2px 7px;border-radius:6px;font-size:14px}
.article-body figure{margin:26px 0}
.article-body figcaption{text-align:center;font-size:12px;color:var(--text-3);margin-top:10px}

/* empty state */
.empty-state{
  text-align:center;padding:64px 24px;border:1px solid var(--line);
  border-radius:var(--radius-card);background:var(--bg-1);max-width:760px;margin:0 auto;
}
.empty-icon{
  width:60px;height:60px;border-radius:50%;border:1px solid var(--neon);
  display:flex;align-items:center;justify-content:center;margin:0 auto 20px;
  color:var(--neon);font-size:24px;box-shadow:var(--glow);
}
.empty-state h2{font-size:20px;font-weight:700;margin-bottom:10px;padding:0}
.empty-state h2::before{display:none}
.empty-state p{color:var(--text-2);font-size:15px;margin-bottom:22px}

/* ---------- sidebar ---------- */
.article-side{display:grid;gap:22px;min-width:0}
.side-card{
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px;box-shadow:var(--shadow);
}
.side-title{
  display:flex;align-items:center;gap:8px;font-size:15px;font-weight:700;
  color:var(--text-1);margin-bottom:14px;
}
.side-title::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--neon);box-shadow:0 0 10px rgba(0,226,154,.6)}
.toc-list{max-height:420px;overflow-y:auto;padding-right:4px}
.toc-list a{
  display:block;padding:8px 12px;font-size:14px;color:var(--text-2);
  border-left:2px solid var(--line);border-radius:0 8px 8px 0;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.toc-list a:hover{color:var(--text-1);background:rgba(255,255,255,.04)}
.toc-list a.sub{padding-left:24px;font-size:13px}
.toc-list a.active{color:var(--neon);border-left-color:var(--neon);background:rgba(0,226,154,.08);text-shadow:0 0 14px rgba(0,226,154,.35)}
.toc-empty{font-size:13px;color:var(--text-3);padding:6px 12px}
.side-entry{display:flex;flex-direction:column;gap:10px}
.side-entry a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 14px;border-radius:10px;border:1px solid var(--line);
  background:var(--bg-2);font-size:14px;color:var(--text-2);
}
.side-entry a:hover{border-color:var(--neon);color:var(--text-1);box-shadow:var(--glow);transform:translateX(2px)}
.side-entry a span{color:var(--neon);font-size:13px}

/* ---------- footer of article ---------- */
.article-foot{max-width:760px;margin:44px auto 0}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;padding-top:24px;border-top:1px solid var(--line)}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;
  font-size:12px;letter-spacing:.05em;color:var(--neon);
  background:rgba(0,226,154,.08);border:1px solid rgba(0,226,154,.28);
}
.tag:hover{background:rgba(0,226,154,.16);box-shadow:var(--glow)}
.back-row{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px}
.post-nav{display:grid;grid-template-columns:1fr;gap:14px;margin-top:28px}
.post-nav a{
  display:block;padding:16px 18px;border-radius:var(--radius-card);
  background:var(--bg-1);border:1px solid var(--line);box-shadow:var(--shadow);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.post-nav a:hover{transform:translateY(-2px);border-color:var(--neon);box-shadow:var(--glow)}
.post-nav .pn-label{font-size:12px;color:var(--text-3);letter-spacing:.08em;display:block;margin-bottom:6px}
.post-nav .pn-title{font-size:15px;font-weight:600;color:var(--text-1);display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.post-nav .pn-time{font-size:12px;color:var(--text-3);margin-top:6px;display:block}

/* ---------- recommendation ---------- */
.section{padding:64px 0}
.section-alt{background:linear-gradient(180deg,rgba(16,22,20,0) 0%,rgba(16,22,20,.75) 50%,rgba(16,22,20,0) 100%)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.section-title{font-size:clamp(22px,3vw,30px);font-weight:800;letter-spacing:.01em}
.section-title em{color:var(--neon);font-style:normal}
.section-sub{font-size:14px;color:var(--text-2);margin-top:8px;max-width:640px}
.link-more{font-size:14px;color:var(--neon);display:inline-flex;align-items:center;gap:6px}
.link-more:hover{gap:10px;color:var(--neon-soft)}
.rec-grid{display:grid;grid-template-columns:1fr;gap:22px}
.card{
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.card:hover{transform:translateY(-2px);border-color:var(--neon);box-shadow:var(--glow)}
.card-media{position:relative;overflow:hidden;aspect-ratio:16/10;background:var(--bg-2)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms ease-out}
.card:hover .card-media img{transform:scale(1.04)}
.card-media::after{content:"";position:absolute;inset:auto 0 0 0;height:52%;background:linear-gradient(180deg,transparent,rgba(10,13,12,.85))}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{font-size:17px;font-weight:700;line-height:1.5;color:var(--text-1);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-text{font-size:14px;color:var(--text-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12px;color:var(--text-3);margin-top:auto;padding-top:6px}

/* ---------- comment ---------- */
.comment-grid{display:grid;grid-template-columns:1fr;gap:26px;align-items:start}
.form-card{background:var(--bg-1);border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow)}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:8px;letter-spacing:.03em}
.input,.textarea{
  width:100%;background:var(--bg-2);border:1px solid var(--line);border-radius:10px;
  padding:12px 14px;font-size:15px;color:var(--text-1);transition:border-color var(--ease),box-shadow var(--ease);
}
.textarea{min-height:130px;resize:vertical}
.input::placeholder,.textarea::placeholder{color:var(--text-3)}
.input:focus,.textarea:focus{outline:none;border-color:var(--neon);box-shadow:0 0 0 2px rgba(0,226,154,.22)}
.form-tip{font-size:13px;color:var(--text-3);margin-top:12px}
.form-msg{font-size:13px;color:var(--neon);margin-top:10px;min-height:18px}
.form-msg.warn{color:var(--hot)}
.comment-note{
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow);
}
.comment-note h3{font-size:17px;font-weight:700;margin-bottom:12px}
.comment-note p{font-size:14px;color:var(--text-2);margin-bottom:10px}
.comment-note ul li{font-size:14px;color:var(--text-2);padding-left:20px;position:relative;margin-bottom:8px}
.comment-note ul li::before{content:"";position:absolute;left:2px;top:10px;width:7px;height:7px;border-radius:2px;background:var(--neon);box-shadow:0 0 10px rgba(0,226,154,.5)}

/* ---------- CTA band ---------- */
.cta-band{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:linear-gradient(90deg,rgba(255,77,45,.12),rgba(0,226,154,.08));
}
.cta-inner{display:flex;flex-direction:column;gap:18px;align-items:flex-start;padding:38px 0}
.cta-inner h2{font-size:clamp(20px,2.6vw,26px);font-weight:800;line-height:1.4}
.cta-inner p{font-size:14px;color:var(--text-2);margin-top:8px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;width:100%}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);background:var(--bg-1);margin-top:0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding:52px 0 36px}
.footer-brand .brand-mark{font-size:17px}
.footer-brand p{margin-top:14px;font-size:14px;color:var(--text-2);line-height:1.85;max-width:420px}
.footer-title{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--text-1);margin-bottom:16px}
.footer-title::before{content:"";width:3px;height:13px;border-radius:2px;background:var(--neon);box-shadow:0 0 10px rgba(0,226,154,.6)}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:var(--text-2)}
.footer-links a:hover{color:var(--neon)}
.footer-info li{font-size:13px;color:var(--text-2);margin-bottom:10px;line-height:1.75}
.footer-info b{color:var(--text-1);font-weight:600}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  padding:18px 0 26px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);
}

/* ---------- responsive ---------- */
@media (min-width:640px){
  .container{padding:0 28px}
  .header-actions .btn-ghost{display:inline-flex}
  .post-nav{grid-template-columns:1fr 1fr}
  .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-inner{flex-direction:row;align-items:center;justify-content:space-between}
  .cta-actions{width:auto}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (min-width:768px){
  .comment-grid{grid-template-columns:1.15fr .85fr}
}
@media (min-width:1024px){
  .container{padding:0 32px}
  .nav-desktop{display:flex}
  .menu-toggle{display:none}
  .header-actions .btn-neon{display:inline-flex}
  .article-grid{grid-template-columns:minmax(0,1fr) 300px;gap:52px}
  .article-side{position:sticky;top:88px;align-self:start}
  .rec-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr}
}
@media (max-width:1023px){
  .article-body{max-width:100%}
}
@media (max-width:767px){
  body{font-size:16px;line-height:1.85}
  .article-title{font-size:26px}
  .btn{width:100%;height:48px}
  .header-actions .btn-hot{display:none}
  .cta-actions .btn{width:100%}
  .meta-row .meta-item{padding:0 10px}
  .cover-figure img{aspect-ratio:16/10}
  .rec-grid{display:grid;grid-auto-flow:column;grid-auto-columns:82%;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px}
  .rec-grid::-webkit-scrollbar{height:6px}
  .rec-grid::-webkit-scrollbar-thumb{background:var(--line);border-radius:6px}
  .card{scroll-snap-align:start}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .breadcrumb,.crumb{font-size:12px}
  .crumb .current{max-width:180px}
  .article-body h2{font-size:22px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category1 */
:root{
  --bg-0:#0A0D0C;
  --bg-1:#101614;
  --bg-2:#171F1C;
  --neon:#00E29A;
  --neon-soft:#7CFFCB;
  --hot:#FF4D2D;
  --lime:#D8FF3E;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --text-1:#F2F6F4;
  --text-2:#A8B5B0;
  --text-3:#6E7C77;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-card:0 8px 24px rgba(0,0,0,.45);
  --shadow-neon:0 0 28px rgba(0,226,154,.22);
  --container:1280px;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  background:var(--bg-0);
  color:var(--text-1);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:12px}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;letter-spacing:.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--neon);outline-offset:2px}
::selection{background:rgba(0,226,154,.28);color:#fff}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 16px}
@media(min-width:768px){.container{padding:0 24px}}
@media(min-width:1024px){.container{padding:0 32px}}
.tabnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,13,12,.92);
  border-bottom:1px solid var(--line);
  transition:background .25s ease,backdrop-filter .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{background:rgba(10,13,12,.72);backdrop-filter:blur(14px);border-bottom-color:var(--line-strong)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px}
.brand{display:flex;flex-direction:column;justify-content:center;gap:2px;flex-shrink:0}
.brand-mark{font-size:17px;font-weight:800;letter-spacing:.02em;color:var(--text-1);white-space:nowrap}
.brand-mark em{font-style:normal;color:var(--neon);margin:0 1px}
.brand-sub{font-size:10px;letter-spacing:.22em;color:var(--text-3);text-transform:uppercase}
.nav-desktop{display:none;align-items:center;gap:26px}
@media(min-width:1024px){.nav-desktop{display:flex}}
.nav-link{
  position:relative;font-size:15px;color:var(--text-2);padding:6px 0;
  transition:color .2s ease-out;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:-2px;width:0;height:2px;
  background:var(--neon);border-radius:2px;transform:translateX(-50%);
  transition:width .24s ease-out;box-shadow:0 0 10px rgba(0,226,154,.9);
}
.nav-link:hover{color:var(--text-1)}
.nav-link.active{color:var(--neon)}
.nav-link.active::after{width:26px}
.header-actions{display:flex;align-items:center;gap:10px}
.header-actions .btn-ghost,.header-actions .btn-neon{display:none}
@media(min-width:1024px){
  .header-actions .btn-ghost,.header-actions .btn-neon{display:inline-flex}
}
.menu-toggle{
  display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:0 11px;border-radius:10px;
  background:var(--bg-1);border:1px solid var(--line);cursor:pointer;
}
.menu-toggle span{display:block;height:2px;background:var(--text-1);border-radius:2px;transition:transform .2s ease}
@media(min-width:1024px){.menu-toggle{display:none}}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;white-space:nowrap;cursor:pointer;
  border:1px solid transparent;transition:all .2s ease-out;letter-spacing:.01em;
}
.btn-hot{background:var(--hot);color:#fff;box-shadow:0 6px 18px rgba(255,77,45,.28)}
.btn-hot:hover{filter:brightness(1.08);transform:translateY(-2px)}
.btn-neon{background:transparent;border-color:var(--neon);color:var(--neon)}
.btn-neon:hover{background:rgba(0,226,154,.09);transform:translateY(-2px);box-shadow:var(--shadow-neon)}
.btn-ghost{background:transparent;color:var(--text-2)}
.btn-ghost:hover{color:var(--text-1)}
.btn-block{width:100%}
@media(max-width:639px){.btn-block-sm{width:100%}}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.6);opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;z-index:80;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:min(320px,86vw);z-index:90;
  background:var(--bg-1);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .28s ease-out;
  display:flex;flex-direction:column;padding:18px 0 24px;
  overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:0 20px 16px;border-bottom:1px solid var(--line)}
.drawer-close{
  width:36px;height:36px;border-radius:10px;background:var(--bg-2);color:var(--text-1);
  border:1px solid var(--line);font-size:20px;line-height:1;cursor:pointer;
}
.drawer-nav{display:flex;flex-direction:column;padding:8px 0}
.drawer-link{padding:14px 20px;font-size:15px;color:var(--text-2);border-bottom:1px solid var(--line);transition:color .2s ease,background .2s ease}
.drawer-link:hover{color:var(--text-1);background:var(--bg-2)}
.drawer-link.active{color:var(--neon)}
.drawer-cta{margin:20px 20px 0}

/* ---------- hero ---------- */
.page-hero{
  position:relative;
  padding:28px 0 56px;
  background-image:linear-gradient(180deg,rgba(10,13,12,.86),rgba(10,13,12,.97)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.024) 0 2px,transparent 2px 12px);
}
.page-hero>.container{position:relative;z-index:1}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px;flex-wrap:wrap}
.breadcrumb a{color:var(--text-3);transition:color .2s ease}
.breadcrumb a:hover{color:var(--neon)}
.breadcrumb .sep{color:var(--line-strong)}
.hero-grid{display:grid;gap:32px}
@media(min-width:1024px){.hero-grid{grid-template-columns:1.25fr .95fr;align-items:center;gap:48px}}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;letter-spacing:.06em;padding:5px 12px;border-radius:var(--radius-pill);
  border:1px solid rgba(0,226,154,.4);background:rgba(0,226,154,.1);color:var(--neon);
}
.badge-hot{border-color:rgba(255,77,45,.4);background:rgba(255,77,45,.12);color:#FF8A72}
.badge-lime{border-color:rgba(216,255,62,.35);background:rgba(216,255,62,.1);color:var(--lime)}
h1.hero-title{
  font-size:30px;line-height:1.28;margin:16px 0 14px;letter-spacing:.005em;
  max-width:16em;
}
@media(min-width:640px){h1.hero-title{font-size:38px}}
@media(min-width:1024px){h1.hero-title{font-size:46px}}
.hero-sub{font-size:16px;color:var(--text-2);max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:32px;padding-top:24px;border-top:1px solid var(--line)}
.stat-num{font-size:22px;font-weight:800;color:var(--neon-soft);font-variant-numeric:tabular-nums}
.stat-label{font-size:12px;color:var(--text-3);letter-spacing:.04em;margin-top:2px}
.hero-figure{position:relative;border-radius:var(--radius-card);overflow:hidden;border:1px solid rgba(0,226,154,.35);box-shadow:var(--shadow-card)}
.hero-figure img{width:100%;height:260px;object-fit:cover;border-radius:0}
@media(min-width:768px){.hero-figure img{height:340px}}
.hero-figure figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:28px 18px 14px;font-size:13px;color:var(--text-2);
  background:linear-gradient(180deg,transparent,rgba(6,9,8,.92));
  border-radius:0 0 var(--radius-card) var(--radius-card);
}
.hero-figure::before{
  content:"";position:absolute;top:0;right:0;width:16px;height:16px;background:var(--neon);
  clip-path:polygon(100% 0,100% 100%,0 0);z-index:2;
}

/* ---------- sections ---------- */
.section{padding:56px 0}
@media(min-width:1024px){.section{padding:76px 0}}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{margin-bottom:32px}
.section-head .eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.16em;color:var(--neon);margin-bottom:10px;text-transform:uppercase;
}
.section-head h2{font-size:24px}
@media(min-width:768px){.section-head h2{font-size:30px}}
.section-head p{color:var(--text-2);font-size:15px;margin-top:12px;max-width:52em}
.section-head .head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap}
.text-link{font-size:14px;color:var(--neon);display:inline-flex;align-items:center;gap:6px;transition:gap .2s ease}
.text-link:hover{gap:10px}

/* ---------- prepare cards ---------- */
.prep-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media(min-width:640px){.prep-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.prep-grid{grid-template-columns:repeat(4,1fr)}}
.prep-card{
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 22px;box-shadow:var(--shadow-card);transition:all .2s ease-out;
}
.prep-card:hover{border-color:var(--neon);transform:translateY(-2px);box-shadow:var(--shadow-card),var(--shadow-neon)}
.prep-num{font-size:13px;color:var(--neon);letter-spacing:.1em;font-variant-numeric:tabular-nums}
.prep-card h3{font-size:18px;margin:12px 0 8px}
.prep-card p{font-size:14px;color:var(--text-2);line-height:1.8}

/* ---------- steps ---------- */
.step-row{
  display:grid;gap:24px;align-items:center;padding:26px 0;border-bottom:1px solid var(--line);
}
.step-row:last-child{border-bottom:0}
@media(min-width:1024px){
  .step-row{grid-template-columns:280px 1fr;gap:44px}
  .step-row.reverse .step-media{order:2}
  .step-row.reverse .step-body{order:1}
}
.step-media{position:relative;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line)}
.step-media img{width:100%;height:190px;object-fit:cover;border-radius:0;transition:transform .35s ease-out}
.step-media:hover img{transform:scale(1.03)}
.step-body h3{font-size:21px;display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}
.step-index{
  font-size:26px;font-weight:800;color:transparent;-webkit-text-stroke:1px var(--neon);
  font-variant-numeric:tabular-nums;letter-spacing:.04em;
}
.step-body p{color:var(--text-2);font-size:15px;margin-top:10px}
.step-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.tag{
  font-size:12px;letter-spacing:.05em;padding:4px 11px;border-radius:var(--radius-pill);
  border:1px solid var(--line-strong);color:var(--text-2);background:rgba(255,255,255,.03);
}
.tag-neon{border-color:rgba(0,226,154,.4);color:var(--neon);background:rgba(0,226,154,.08)}

/* ---------- layout (list + sidebar) ---------- */
.layout{display:grid;gap:32px}
@media(min-width:1024px){.layout{grid-template-columns:8fr 4fr;gap:40px;align-items:start}}
.post-list{display:flex;flex-direction:column;gap:20px}
.post-card{
  display:grid;gap:18px;background:var(--bg-1);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);
  transition:all .2s ease-out;
}
@media(min-width:640px){.post-card{grid-template-columns:220px 1fr;align-items:stretch}}
.post-card:hover{border-color:var(--neon);transform:translateY(-2px);box-shadow:var(--shadow-card),var(--shadow-neon)}
.post-thumb{position:relative;overflow:hidden;background:var(--bg-2);min-height:160px}
.post-thumb img{width:100%;height:100%;min-height:160px;object-fit:cover;border-radius:0;transition:transform .35s ease-out}
.post-card:hover .post-thumb img{transform:scale(1.04)}
.post-body{padding:20px 22px 22px}
@media(min-width:640px){.post-body{padding:22px 24px 22px 0}}
.post-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:12px;color:var(--text-3);margin-bottom:10px;letter-spacing:.03em}
.post-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--text-3)}
.post-body h3{font-size:18px;line-height:1.5}
.post-body h3 a:hover{color:var(--neon)}
.post-body p{font-size:14px;color:var(--text-2);margin-top:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:16px;flex-wrap:wrap}
.post-time{font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums;letter-spacing:.05em}

/* ---------- sidebar ---------- */
.sidebar{display:flex;flex-direction:column;gap:20px}
@media(min-width:1024px){.sidebar{position:sticky;top:88px}}
.side-card{
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-card);
}
.side-title{
  font-size:15px;font-weight:700;display:flex;align-items:center;gap:9px;margin-bottom:16px;
}
.side-title::before{content:"";width:3px;height:15px;background:var(--neon);border-radius:2px;box-shadow:0 0 10px rgba(0,226,154,.8)}
.side-list{display:flex;flex-direction:column;gap:2px}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:14px;color:var(--text-2);padding:10px 10px;border-radius:8px;transition:all .2s ease-out;
}
.side-list a:hover{background:var(--bg-2);color:var(--text-1)}
.side-list a.active{color:var(--neon);background:rgba(0,226,154,.08)}
.side-list span{font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums}
.hot-list{display:flex;flex-direction:column;gap:14px}
.hot-item{display:flex;gap:12px;align-items:flex-start}
.hot-num{
  flex-shrink:0;width:22px;height:22px;border-radius:6px;display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;color:var(--neon);background:rgba(0,226,154,.1);
  border:1px solid rgba(0,226,154,.3);font-variant-numeric:tabular-nums;
}
.hot-item a{font-size:14px;color:var(--text-2);line-height:1.65;transition:color .2s ease}
.hot-item a:hover{color:var(--text-1)}
.tag-cloud{display:flex;flex-wrap:wrap;gap:9px}
.tag-cloud a{
  font-size:12px;padding:5px 12px;border-radius:var(--radius-pill);
  border:1px solid var(--line-strong);color:var(--text-2);transition:all .2s ease-out;
}
.tag-cloud a:hover{border-color:var(--neon);color:var(--neon);background:rgba(0,226,154,.08)}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{
  background:var(--bg-1);border:1px solid var(--line);border-left:3px solid transparent;
  border-radius:var(--radius-card);overflow:hidden;transition:all .2s ease-out;
}
.faq-item[open]{border-left-color:var(--neon);border-color:var(--line-strong)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--text-1);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(0,226,154,.45);color:var(--neon);font-size:15px;line-height:1;
  transition:transform .25s ease-out;background:rgba(0,226,154,.07);
}
.faq-item[open] .faq-icon{transform:rotate(180deg)}
.faq-body{padding:0 22px 20px;color:var(--text-2);font-size:15px;line-height:1.9}

/* ---------- cta ---------- */
.cta-band{
  position:relative;border-radius:var(--radius-card);overflow:hidden;border:1px solid rgba(0,226,154,.28);
  background-image:linear-gradient(115deg,rgba(10,13,12,.94),rgba(10,13,12,.72)),url("/assets/images/backpic/back-3.webp");
  background-size:cover;background-position:center;padding:40px 28px;box-shadow:var(--shadow-card);
}
@media(min-width:768px){.cta-band{padding:52px 48px}}
.cta-band .cta-inner{display:grid;gap:24px;align-items:center}
@media(min-width:1024px){.cta-band .cta-inner{grid-template-columns:1.4fr 1fr}}
.cta-band h2{font-size:24px}
@media(min-width:768px){.cta-band h2{font-size:30px}}
.cta-band p{color:var(--text-2);font-size:15px;margin-top:12px;max-width:38em}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
@media(min-width:1024px){.cta-actions{justify-content:flex-end}}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:52px 0 26px;margin-top:0}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}}
.footer-brand .brand-mark{font-size:18px;display:inline-block;margin-bottom:6px}
.footer-brand .brand-sub{display:block}
.footer-brand p{font-size:14px;color:var(--text-2);margin-top:14px;line-height:1.85;max-width:34em}
.footer-title{
  font-size:14px;font-weight:700;color:var(--text-1);display:flex;align-items:center;gap:8px;margin-bottom:16px;
}
.footer-title::before{content:"";width:3px;height:14px;background:var(--neon);border-radius:2px}
.footer-links,.footer-info{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:var(--text-2);transition:color .2s ease}
.footer-links a:hover{color:var(--neon)}
.footer-info li{font-size:13px;color:var(--text-2);line-height:1.75}
.footer-info b{color:var(--text-1);font-weight:600}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:var(--text-3);
}

/* roulang page: category3 */
:root{
  --bg-0:#0A0D0C;
  --bg-1:#101614;
  --bg-2:#171F1C;
  --neon:#00E29A;
  --neon-soft:#7CFFCB;
  --hot:#FF4D2D;
  --lime:#D8FF3E;
  --line:rgba(255,255,255,.08);
  --text-1:#F2F6F4;
  --text-2:#A8B5B0;
  --text-3:#6E7C77;
  --radius:14px;
  --radius-btn:10px;
  --shadow:0 8px 24px rgba(0,0,0,.45);
  --glow:0 0 28px rgba(0,226,154,.22);
  --container:1280px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  overflow-x:hidden;
  background-image:
    repeating-linear-gradient(45deg,rgba(255,255,255,.014) 0 2px,transparent 2px 12px);
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease);}
a:hover{color:var(--neon-soft);}
button,input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{line-height:1.3;letter-spacing:.005em;}
:focus-visible{outline:2px solid var(--neon);outline-offset:2px;}
::selection{background:rgba(0,226,154,.28);color:#fff;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}
.num{font-variant-numeric:tabular-nums;letter-spacing:.02em;}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(10,13,12,.86);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.header-inner{
  min-height:64px;
  display:flex;
  align-items:center;
  gap:28px;
  justify-content:space-between;
}
.brand{display:flex;flex-direction:column;line-height:1.15;gap:2px;}
.brand-mark{
  font-size:18px;
  font-weight:700;
  letter-spacing:.04em;
  color:var(--text-1);
}
.brand-mark em{color:var(--neon);font-style:normal;margin:0 2px;}
.brand-sub{
  font-size:11px;
  letter-spacing:.28em;
  color:var(--text-3);
  text-transform:uppercase;
}
.nav-desktop{display:flex;align-items:center;gap:26px;}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--text-2);
  padding:20px 0;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:12px;
  width:0;
  height:2px;
  border-radius:2px;
  background:var(--neon);
  transform:translateX(-50%);
  transition:width .24s var(--ease),box-shadow .24s var(--ease);
}
.nav-link:hover{color:var(--text-1);}
.nav-link:hover::after{width:60%;box-shadow:0 0 12px rgba(0,226,154,.6);}
.nav-link.active{color:var(--neon);}
.nav-link.active::after{width:100%;box-shadow:0 0 16px rgba(0,226,154,.75);}
.header-actions{display:flex;align-items:center;gap:12px;}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 20px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease),color .2s var(--ease);
}
.btn-hot{background:var(--hot);color:#fff;box-shadow:0 6px 18px rgba(255,77,45,.28);}
.btn-hot:hover{background:#ff6448;color:#fff;transform:translateY(-1px);}
.btn-neon{border-color:rgba(0,226,154,.6);color:var(--neon);background:transparent;}
.btn-neon:hover{background:rgba(0,226,154,.1);color:var(--neon-soft);box-shadow:var(--glow);}
.btn-ghost{color:var(--text-2);padding:0 14px;}
.btn-ghost:hover{color:var(--neon);}
.menu-toggle{
  display:none;
  width:44px;
  height:44px;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  background:var(--bg-1);
  padding:0;
  cursor:pointer;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--text-1);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease);}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.mobile-drawer{
  position:fixed;
  top:0;
  right:0;
  bottom:0;
  width:min(320px,88vw);
  background:var(--bg-1);
  border-left:1px solid var(--line);
  box-shadow:-18px 0 40px rgba(0,0,0,.6);
  z-index:90;
  transform:translateX(102%);
  transition:transform .28s var(--ease);
  padding:20px 0 28px;
  display:flex;
  flex-direction:column;
  overflow-y:auto;
}
.mobile-drawer.open{transform:translateX(0);}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:0 22px 16px;
  border-bottom:1px solid var(--line);
}
.drawer-close{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--line);
  background:var(--bg-2);cursor:pointer;font-size:18px;line-height:1;color:var(--text-2);
}
.drawer-close:hover{color:var(--neon);border-color:rgba(0,226,154,.5);}
.drawer-nav{display:flex;flex-direction:column;padding:8px 0;}
.drawer-nav a{
  padding:15px 22px;
  border-bottom:1px solid var(--line);
  color:var(--text-2);
  font-size:15px;
}
.drawer-nav a:hover{color:var(--text-1);background:var(--bg-2);}
.drawer-nav a.active{color:var(--neon);}
.drawer-cta{padding:20px 22px 0;display:flex;flex-direction:column;gap:12px;}
.drawer-cta .btn{width:100%;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:80;
  opacity:0;pointer-events:none;transition:opacity .28s var(--ease);
}
.drawer-mask.show{opacity:1;pointer-events:auto;}

/* ---------- breadcrumb ---------- */
.crumb-bar{border-bottom:1px solid var(--line);background:rgba(16,22,20,.6);}
.crumb{
  display:flex;
  align-items:center;
  gap:10px;
  padding:14px 0;
  font-size:13px;
  color:var(--text-3);
  flex-wrap:wrap;
}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--neon);}
.crumb .sep{color:var(--text-3);opacity:.6;}
.crumb .current{color:var(--text-1);}

/* ---------- hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  background:
    radial-gradient(900px 380px at 82% -10%,rgba(0,226,154,.12),transparent 62%),
    radial-gradient(700px 320px at 8% 110%,rgba(255,77,45,.1),transparent 60%),
    var(--bg-0);
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.022) 0 1px,transparent 1px 14px);
  pointer-events:none;
}
.hero-grid{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1.35fr .85fr;
  gap:48px;
  align-items:center;
  padding:64px 0 60px;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.08em;
  padding:6px 14px;
  border-radius:999px;
  border:1px solid rgba(0,226,154,.42);
  background:rgba(0,226,154,.09);
  color:var(--neon);
  margin-bottom:20px;
}
.badge.hot{border-color:rgba(255,77,45,.45);background:rgba(255,77,45,.1);color:#FF8A72;}
.badge .dot{width:6px;height:6px;border-radius:50%;background:currentColor;box-shadow:0 0 10px currentColor;}
.page-hero h1{
  font-size:clamp(30px,4.2vw,50px);
  font-weight:800;
  letter-spacing:-.01em;
  margin-bottom:18px;
}
.page-hero h1 .accent{
  background:linear-gradient(96deg,var(--neon),var(--neon-soft));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-sub{
  font-size:17px;
  color:var(--text-2);
  max-width:640px;
  margin-bottom:26px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-facts{
  display:flex;
  flex-wrap:wrap;
  gap:14px 34px;
  padding-top:22px;
  border-top:1px solid var(--line);
}
.fact b{display:block;font-size:24px;font-weight:800;color:var(--text-1);}
.fact span{font-size:12px;color:var(--text-3);letter-spacing:.06em;}
.hero-visual{
  position:relative;
  border-radius:var(--radius);
  border:1px solid rgba(0,226,154,.34);
  overflow:hidden;
  box-shadow:var(--shadow),0 0 34px rgba(0,226,154,.14);
  clip-path:polygon(0 0,calc(100% - 18px) 0,100% 18px,100% 100%,0 100%);
}
.hero-visual img{width:100%;height:320px;object-fit:cover;filter:saturate(1.05);}
.hero-visual .visual-cap{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:16px 18px;
  background:linear-gradient(180deg,transparent,rgba(10,13,12,.92));
  font-size:13px;
  color:var(--text-2);
  letter-spacing:.04em;
}

/* ---------- section basics ---------- */
.section{padding:76px 0;}
.section.alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head .kicker{
  font-size:12px;
  letter-spacing:.22em;
  color:var(--neon);
  text-transform:uppercase;
  margin-bottom:12px;
}
.section-head h2{font-size:clamp(24px,2.6vw,32px);font-weight:800;margin-bottom:14px;}
.section-head p{color:var(--text-2);font-size:16px;}
.section-head.line-left{padding-left:18px;border-left:3px solid var(--neon);}

/* ---------- overview ---------- */
.overview-grid{
  display:grid;
  grid-template-columns:1.25fr .75fr;
  gap:40px;
  align-items:start;
}
.point-list{display:flex;flex-direction:column;gap:16px;}
.point{
  display:grid;
  grid-template-columns:44px 1fr;
  gap:16px;
  padding:20px 22px;
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--radius);
  transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.point:hover{border-color:var(--neon);transform:translateY(-2px);box-shadow:var(--glow);}
.point .pn{
  width:44px;height:44px;border-radius:12px;
  display:grid;place-items:center;
  border:1px solid rgba(0,226,154,.4);
  color:var(--neon);
  font-weight:700;font-size:14px;
  background:rgba(0,226,154,.06);
}
.point h3{font-size:17px;font-weight:700;margin-bottom:6px;}
.point p{font-size:14.5px;color:var(--text-2);line-height:1.8;}
.overview-aside{
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--bg-1);
  overflow:hidden;
  box-shadow:var(--shadow);
}
.overview-aside img{width:100%;height:200px;object-fit:cover;}
.overview-aside .aside-body{padding:20px 22px 24px;}
.overview-aside h3{font-size:17px;margin-bottom:10px;}
.overview-aside p{font-size:14px;color:var(--text-2);}
.aside-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tag{
  font-size:12px;
  letter-spacing:.05em;
  padding:5px 12px;
  border-radius:999px;
  border:1px solid rgba(0,226,154,.3);
  background:rgba(0,226,154,.07);
  color:var(--neon-soft);
}
.tag.hot{border-color:rgba(255,77,45,.35);background:rgba(255,77,45,.09);color:#FF9A85;}

/* ---------- timeline ---------- */
.timeline{position:relative;padding:8px 0;}
.timeline::before{
  content:"";
  position:absolute;
  top:10px;bottom:10px;left:50%;
  width:1px;
  transform:translateX(-50%);
  background:linear-gradient(180deg,transparent,rgba(0,226,154,.55) 10%,rgba(0,226,154,.55) 90%,transparent);
}
.tl-item{
  display:grid;
  grid-template-columns:1fr 88px 1fr;
  align-items:center;
  margin-bottom:26px;
}
.tl-num{
  grid-column:2;
  justify-self:center;
  width:58px;height:58px;
  border-radius:999px;
  display:grid;place-items:center;
  background:var(--bg-0);
  border:1px solid rgba(0,226,154,.55);
  color:var(--neon);
  font-weight:800;
  font-size:15px;
  box-shadow:0 0 20px rgba(0,226,154,.2);
  position:relative;
  z-index:2;
}
.tl-card{
  grid-column:1;
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px 26px;
  box-shadow:var(--shadow);
  transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.tl-item:nth-child(even) .tl-card{grid-column:3;}
.tl-card:hover{border-color:var(--neon);transform:translateY(-2px);box-shadow:var(--shadow),var(--glow);}
.tl-card h3{font-size:19px;font-weight:700;margin:12px 0 10px;}
.tl-card p{font-size:15px;color:var(--text-2);margin-bottom:14px;}
.tl-points{display:flex;flex-direction:column;gap:8px;}
.tl-points li{
  position:relative;
  padding-left:18px;
  font-size:14px;
  color:var(--text-2);
  line-height:1.75;
}
.tl-points li::before{
  content:"";
  position:absolute;
  left:0;top:9px;
  width:7px;height:7px;
  background:var(--neon);
  box-shadow:0 0 8px rgba(0,226,154,.7);
  border-radius:2px;
}

/* ---------- criteria ---------- */
.criteria-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
}
.criteria{
  padding:22px 24px;
  border:1px solid var(--line);
  border-left:3px solid var(--hot);
  border-radius:var(--radius);
  background:var(--bg-2);
  transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.criteria:hover{transform:translateY(-2px);border-color:var(--neon);border-left-color:var(--neon);}
.criteria dt{font-size:16px;font-weight:700;margin-bottom:8px;color:var(--text-1);}
.criteria dd{margin:0;font-size:14.5px;color:var(--text-2);line-height:1.8;}
.criteria .mini{display:block;margin-top:10px;font-size:12px;letter-spacing:.08em;color:var(--neon);}

/* ---------- updates ---------- */
.update-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:40px;
  align-items:center;
  padding:34px 0;
  border-bottom:1px solid var(--line);
}
.update-row:last-child{border-bottom:0;}
.update-row .u-media{
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.update-row .u-media img{width:100%;height:250px;object-fit:cover;transition:transform .35s var(--ease);}
.update-row .u-media:hover img{transform:scale(1.03);}
.update-row h3{font-size:22px;font-weight:700;margin:14px 0 12px;}
.update-row p{color:var(--text-2);font-size:15.5px;}
.update-row .u-body ul{margin-top:16px;display:flex;flex-direction:column;gap:9px;}
.update-row .u-body ul li{position:relative;padding-left:20px;font-size:14.5px;color:var(--text-2);}
.update-row .u-body ul li::before{
  content:"";
  position:absolute;left:0;top:9px;width:8px;height:1px;background:var(--neon);box-shadow:0 0 8px var(--neon);
}
.update-row.reverse .u-media{order:2;}

/* ---------- faq ---------- */
.faq-wrap{max-width:920px;}
.faq-item{
  position:relative;
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--radius);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .2s var(--ease);
}
.faq-item::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:3px;
  background:transparent;
  transition:background-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item[open]{border-color:rgba(0,226,154,.42);}
.faq-item[open]::before{background:var(--neon);box-shadow:0 0 16px rgba(0,226,154,.7);}
.faq-item summary{
  cursor:pointer;
  padding:20px 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  font-size:16px;
  font-weight:600;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  flex:0 0 auto;
  width:26px;height:26px;
  border-radius:8px;
  border:1px solid rgba(0,226,154,.4);
  color:var(--neon);
  display:grid;place-items:center;
  font-size:15px;
  line-height:1;
  transition:transform .25s var(--ease),background-color .2s var(--ease);
}
.faq-item[open] .faq-icon{transform:rotate(180deg);background:rgba(0,226,154,.12);}
.faq-body{padding:0 24px 22px;color:var(--text-2);font-size:15px;line-height:1.85;}

/* ---------- cta ---------- */
.cta-band{
  position:relative;
  border-top:1px solid var(--line);
  background:
    linear-gradient(120deg,rgba(255,77,45,.12),transparent 46%),
    linear-gradient(300deg,rgba(0,226,154,.12),transparent 52%),
    var(--bg-1);
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;inset:0;
  background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.02) 0 1px,transparent 1px 16px);
}
.cta-grid{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  padding:70px 0;
  align-items:start;
}
.cta-copy h2{font-size:clamp(24px,2.8vw,34px);font-weight:800;margin-bottom:16px;}
.cta-copy p{color:var(--text-2);font-size:16px;max-width:520px;}
.cta-copy .cta-notes{margin-top:24px;display:flex;flex-direction:column;gap:10px;}
.cta-copy .cta-notes li{font-size:14px;color:var(--text-3);display:flex;gap:10px;align-items:flex-start;}
.cta-copy .cta-notes li b{color:var(--neon);font-weight:600;}
.rule-form{
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:28px;
  box-shadow:var(--shadow);
}
.rule-form h3{font-size:18px;margin-bottom:6px;}
.rule-form .form-tip{font-size:13px;color:var(--text-3);margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:8px;letter-spacing:.04em;}
.field input,.field select,.field textarea{
  width:100%;
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  padding:12px 14px;
  font-size:15px;
  color:var(--text-1);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease);
}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--neon);
  box-shadow:0 0 0 2px rgba(0,226,154,.28);
  background:var(--bg-1);
}
.field textarea{min-height:96px;resize:vertical;line-height:1.7;}
.form-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px;}
.form-actions .btn{flex:1 1 160px;}

/* ---------- footer ---------- */
.site-footer{
  background:var(--bg-0);
  border-top:1px solid var(--line);
  padding:58px 0 26px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:38px;
  border-bottom:1px solid var(--line);
}
.footer-brand .brand-mark{display:inline-block;margin-bottom:14px;}
.footer-brand p{font-size:14px;color:var(--text-2);max-width:380px;line-height:1.85;}
.footer-title{
  font-size:14px;
  font-weight:700;
  color:var(--text-1);
  margin-bottom:16px;
  padding-left:12px;
  position:relative;
}
.footer-title::before{
  content:"";
  position:absolute;left:0;top:5px;bottom:5px;
  width:2px;background:var(--neon);border-radius:2px;box-shadow:0 0 10px rgba(0,226,154,.6);
}
.footer-links,.footer-info{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:var(--text-2);}
.footer-links a:hover{color:var(--neon);}
.footer-info li{font-size:13.5px;color:var(--text-2);line-height:1.75;}
.footer-info b{color:var(--text-1);font-weight:600;}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:12px 30px;
  justify-content:space-between;
  padding-top:22px;
  font-size:13px;
  color:var(--text-3);
}

/* ---------- responsive ---------- */
@media (max-width:1100px){
  .header-inner{gap:18px;}
  .nav-desktop{gap:18px;}
  .nav-link{font-size:14px;}
  .header-actions .btn-ghost{display:none;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;}
}
@media (max-width:960px){
  .nav-desktop{display:none;}
  .header-actions .btn-neon{display:none;}
  .menu-toggle{display:flex;}
  .hero-grid{grid-template-columns:1fr;gap:34px;padding:48px 0 52px;}
  .hero-visual img{height:260px;}
  .overview-grid{grid-template-columns:1fr;}
  .criteria-grid{grid-template-columns:1fr;}
  .update-row{grid-template-columns:1fr;gap:24px;}
  .update-row.reverse .u-media{order:0;}
  .cta-grid{grid-template-columns:1fr;gap:34px;padding:54px 0;}
  .timeline::before{left:26px;transform:none;}
  .tl-item{grid-template-columns:54px 1fr;gap:16px;align-items:start;margin-bottom:20px;}
  .tl-num{grid-column:1;justify-self:start;width:46px;height:46px;font-size:13px;}
  .tl-card{grid-column:2 !important;padding:20px;}
}
@media (max-width:640px){
  .container{padding:0 18px;}
  .section{padding:54px 0;}
  .brand-mark{font-size:16px;}
  .header-actions .btn-hot{height:40px;padding:0 14px;font-size:14px;}
  .page-hero h1{font-size:28px;}
  .hero-sub{font-size:15.5px;}
  .hero-cta .btn{width:100%;height:48px;}
  .hero-facts{gap:16px 26px;}
  .fact b{font-size:20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .faq-item summary{padding:16px 18px;font-size:15px;}
  .faq-body{padding:0 18px 18px;}
  .rule-form{padding:22px 18px;}
  .tl-card h3{font-size:17px;}
}

/* roulang page: category2 */
:root{
  --bg-0:#0A0D0C;
  --bg-1:#101614;
  --bg-2:#171F1C;
  --neon:#00E29A;
  --neon-soft:#7CFFCB;
  --hot:#FF4D2D;
  --lime:#D8FF3E;
  --line:rgba(255,255,255,.08);
  --text-1:#F2F6F4;
  --text-2:#A8B5B0;
  --text-3:#6E7C77;
  --radius-card:14px;
  --radius-btn:10px;
  --shadow-card:0 8px 24px rgba(0,0,0,.45);
  --glow-neon:0 0 28px rgba(0,226,154,.22);
  --container:1280px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto;background:var(--bg-2)}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--neon);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,13,12,.88);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:flex;flex-direction:column;line-height:1.1;flex-shrink:0}
.brand-mark{font-size:17px;font-weight:700;letter-spacing:.02em;color:var(--text-1);white-space:nowrap}
.brand-mark em{color:var(--neon);font-style:normal;margin:0 2px}
.brand-sub{font-size:11px;letter-spacing:.24em;color:var(--text-3);margin-top:2px}
.nav-desktop{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;padding:9px 12px;font-size:15px;color:var(--text-2);
  border-radius:8px;transition:color .2s ease-out;white-space:nowrap;
}
.nav-link:hover{color:var(--text-1)}
.nav-link.active{color:var(--neon)}
.nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;
  background:var(--neon);border-radius:2px;box-shadow:0 0 10px var(--neon);
}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:10px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 18px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:all .2s ease-out;white-space:nowrap;line-height:1;
}
.btn-hot{background:var(--hot);color:#fff;box-shadow:0 6px 18px rgba(255,77,45,.24)}
.btn-hot:hover{filter:brightness(1.08);transform:translateY(-2px)}
.btn-neon{background:transparent;border-color:var(--neon);color:var(--neon)}
.btn-neon:hover{background:rgba(0,226,154,.08);box-shadow:var(--glow-neon);transform:translateY(-2px)}
.btn-ghost{color:var(--text-2);padding:0 10px;background:transparent}
.btn-ghost::after{content:"→";margin-left:6px;transition:transform .2s ease-out}
.btn-ghost:hover{color:var(--text-1)}
.btn-ghost:hover::after{transform:translateX(4px)}
.btn-block{width:100%}
.menu-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;
  background:var(--bg-2);flex-direction:column;align-items:center;justify-content:center;
  gap:5px;cursor:pointer;padding:0;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--text-1);border-radius:2px}

/* ---------- 移动抽屉 ---------- */
.drawer{position:fixed;inset:0;z-index:90;display:none}
.drawer.open{display:block}
.drawer-mask{position:absolute;inset:0;background:rgba(4,6,5,.68);border:0;padding:0;cursor:pointer}
.drawer-panel{
  position:absolute;top:0;right:0;width:min(86vw,340px);height:100%;
  background:var(--bg-1);border-left:1px solid var(--line);
  padding:18px 20px 28px;display:flex;flex-direction:column;overflow-y:auto;
}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--line);
  background:var(--bg-2);color:var(--text-1);font-size:20px;line-height:1;cursor:pointer;
}
.drawer-link{
  display:block;padding:15px 4px;font-size:16px;color:var(--text-2);
  border-bottom:1px solid var(--line);transition:color .2s ease-out;
}
.drawer-link:hover{color:var(--text-1)}
.drawer-link.active{color:var(--neon)}
.drawer-cta{display:flex;flex-direction:column;gap:12px;margin-top:24px}

/* ---------- 通用板块 ---------- */
.section{padding:72px 0}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{margin-bottom:32px;display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.section-title{font-size:clamp(24px,2.4vw,30px);line-height:1.35}
.section-sub{color:var(--text-2);font-size:15px;margin-top:10px;max-width:660px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.16em;
  color:var(--neon);text-transform:uppercase;margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--neon);box-shadow:0 0 8px var(--neon)}
.badge{
  display:inline-block;padding:4px 10px;border-radius:999px;font-size:11.5px;
  letter-spacing:.05em;border:1px solid rgba(0,226,154,.4);background:rgba(0,226,154,.1);
  color:var(--neon-soft);
}
.badge-hot{border-color:rgba(255,77,45,.45);background:rgba(255,77,45,.12);color:#FF8A70}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-bg{position:absolute;inset:0;background:url(/assets/images/backpic/back-1.webp) center/cover no-repeat;opacity:.25}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,var(--bg-0) 10%,rgba(10,13,12,.78) 55%,rgba(10,13,12,.4) 100%);
}
.hero-inner{
  position:relative;display:grid;grid-template-columns:1.05fr .95fr;
  gap:52px;align-items:center;padding:56px 0 68px;
}
.crumb{font-size:13px;color:var(--text-3);margin-bottom:18px}
.crumb a:hover{color:var(--neon)}
.crumb span{margin:0 8px;color:var(--text-3)}
.hero-title{font-size:clamp(30px,4.2vw,46px);line-height:1.3;margin:0 0 18px}
.hero-lead{font-size:17px;color:var(--text-2);max-width:560px}
.hero-cta{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap}
.stat-row{display:flex;gap:36px;margin-top:34px;flex-wrap:wrap}
.stat-num{font-size:26px;font-weight:800;color:var(--neon);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.stat-label{font-size:12px;color:var(--text-3);letter-spacing:.08em;margin-top:2px}
.hero-visual{position:relative}
.hero-visual img{
  border-radius:var(--radius-card);border:1px solid rgba(0,226,154,.35);
  box-shadow:0 24px 54px rgba(0,0,0,.55);width:100%;height:380px;object-fit:cover;
}
.hero-chip{
  position:absolute;right:16px;bottom:16px;padding:9px 16px;border-radius:999px;
  background:rgba(10,13,12,.86);border:1px solid var(--neon);color:var(--neon);
  font-size:13px;font-variant-numeric:tabular-nums;backdrop-filter:blur(6px);
}

/* ---------- 筛选 ---------- */
.chips{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:30px}
.chip{
  padding:9px 18px;border-radius:999px;border:1px solid var(--line);background:var(--bg-2);
  color:var(--text-2);font-size:14px;cursor:pointer;transition:all .2s ease-out;
}
.chip:hover{border-color:var(--neon);color:var(--text-1)}
.chip.active{
  background:var(--neon);border-color:var(--neon);color:#04231A;font-weight:700;
  box-shadow:0 0 18px rgba(0,226,154,.28);
}

/* ---------- Bento 图墙 ---------- */
.bento{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:186px;gap:24px}
.bento-card{
  position:relative;overflow:hidden;border-radius:var(--radius-card);
  border:1px solid var(--line);background:var(--bg-2);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.bento-card.big{grid-column:span 2;grid-row:span 2}
.bento-card img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out}
.bento-card:hover{transform:translateY(-2px);border-color:var(--neon);box-shadow:var(--glow-neon)}
.bento-card:hover img{transform:scale(1.03)}
.bento-cap{
  position:absolute;left:0;right:0;bottom:0;padding:18px;
  background:linear-gradient(to top,rgba(6,9,8,.94),rgba(6,9,8,.55) 55%,rgba(6,9,8,0));
}
.bento-cap h3{font-size:17px;line-height:1.45;margin-top:8px}
.bento-card.big .bento-cap h3{font-size:21px}
.bento-cap p{font-size:13px;color:var(--text-2);margin-top:6px;display:none}
.bento-card.big .bento-cap p{display:block}
.bento-card.is-hidden{display:none}

/* ---------- 专题看点（轨道） ---------- */
.track-row{display:grid;grid-template-columns:5fr 7fr;gap:32px;align-items:center;margin-bottom:34px}
.track-row:last-child{margin-bottom:0}
.track-row.flip .track-media{order:2}
.track-row.flip .track-body{order:1}
.track-media img{
  width:100%;height:240px;object-fit:cover;border-radius:var(--radius-card);
  border:1px solid var(--line);
}
.track-no{
  font-size:44px;font-weight:800;line-height:1;color:transparent;
  -webkit-text-stroke:1px var(--neon);text-stroke:1px var(--neon);margin-bottom:14px;
}
.track-body h3{font-size:21px;margin-bottom:12px}
.track-body p{color:var(--text-2);font-size:15.5px}
.track-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}

/* ---------- 时间线 ---------- */
.timeline{position:relative;padding:8px 0}
.timeline::before{
  content:"";position:absolute;left:50%;top:0;bottom:0;width:1px;
  background:linear-gradient(to bottom,rgba(0,226,154,0),var(--neon),rgba(0,226,154,0));
}
.tl-item{position:relative;width:50%;padding-right:52px;margin-bottom:26px}
.tl-item:nth-child(even){margin-left:50%;padding-right:0;padding-left:52px}
.tl-card{
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;transition:all .2s ease-out;
}
.tl-item:nth-child(even) .tl-card{background:var(--bg-2)}
.tl-card:hover{border-color:var(--neon);box-shadow:var(--glow-neon);transform:translateY(-2px)}
.tl-step{
  font-size:13px;color:var(--neon);font-variant-numeric:tabular-nums;
  letter-spacing:.14em;margin-bottom:8px;
}
.tl-card h3{font-size:18px;margin-bottom:8px}
.tl-card p{font-size:14.5px;color:var(--text-2)}
.tl-dot{
  position:absolute;right:-6px;top:28px;width:12px;height:12px;border-radius:50%;
  background:var(--neon);box-shadow:0 0 12px var(--neon);
}
.tl-item:nth-child(even) .tl-dot{left:-6px;right:auto}

/* ---------- FAQ ---------- */
.faq-list{max-width:880px}
.faq-item{
  position:relative;background:var(--bg-1);border:1px solid var(--line);
  border-radius:var(--radius-card);margin-bottom:12px;overflow:hidden;
  transition:border-color .2s ease-out;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--neon);
  opacity:0;transition:opacity .2s ease-out;
}
.faq-item.open{border-color:rgba(0,226,154,.42)}
.faq-item.open::before{opacity:1}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 22px 18px 26px;background:none;border:0;text-align:left;
  font-size:17px;font-weight:600;cursor:pointer;color:var(--text-1);
}
.faq-icon{
  flex-shrink:0;width:26px;height:26px;border-radius:8px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;font-size:16px;line-height:1;
  color:var(--neon);transition:transform .25s ease-out;
}
.faq-item.open .faq-icon{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease-out}
.faq-item.open .faq-a{max-height:340px}
.faq-a p{padding:0 26px 22px;color:var(--text-2);font-size:15.5px}

/* ---------- CTA / 表单 ---------- */
.cta-grid{display:grid;grid-template-columns:7fr 5fr;gap:32px;align-items:start}
.form-card,.rule-card{
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--radius-card);padding:28px;
}
.rule-card{background:var(--bg-2)}
.form-title{font-size:22px;margin-bottom:8px}
.form-note{font-size:14px;color:var(--text-2);margin-bottom:22px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:8px;letter-spacing:.04em}
.field input{
  width:100%;height:46px;padding:0 14px;background:var(--bg-2);
  border:1px solid var(--line);border-radius:10px;color:var(--text-1);
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.field input::placeholder{color:var(--text-3)}
.field input:focus{outline:none;border-color:var(--neon);box-shadow:0 0 0 3px rgba(0,226,154,.18)}
.code-row{display:flex;gap:10px}
.code-row input{flex:1}
.code-btn{
  flex-shrink:0;height:46px;padding:0 16px;border-radius:10px;border:1px solid var(--neon);
  background:transparent;color:var(--neon);font-size:14px;cursor:pointer;
  transition:background .2s ease-out;white-space:nowrap;
}
.code-btn:hover{background:rgba(0,226,154,.1)}
.form-tip{font-size:13px;color:var(--neon);margin-top:14px;min-height:20px}
.rule-title{
  font-size:14px;font-weight:700;padding-left:10px;position:relative;margin-bottom:18px;
}
.rule-title::before{
  content:"";position:absolute;left:0;top:4px;bottom:4px;width:3px;
  background:var(--neon);border-radius:2px;box-shadow:0 0 8px var(--neon);
}
.rule-list li{
  display:flex;gap:10px;font-size:14.5px;color:var(--text-2);
  padding:10px 0;border-bottom:1px dashed var(--line);
}
.rule-list li:last-child{border-bottom:0}
.rule-list b{color:var(--text-1);font-weight:600;flex-shrink:0}
.rule-list .dot{
  width:6px;height:6px;border-radius:2px;background:var(--neon);margin-top:10px;flex-shrink:0;
}

/* ---------- 收尾条 ---------- */
.closing{
  background:linear-gradient(90deg,rgba(255,77,45,.14),rgba(0,226,154,.12));
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.closing-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:26px 0;flex-wrap:wrap;
}
.closing-inner h2{font-size:20px}
.closing-inner p{font-size:14px;color:var(--text-2);margin-top:6px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;padding:56px 0 36px}
.footer-brand p{color:var(--text-2);font-size:14.5px;margin-top:14px;max-width:360px}
.footer-title{font-size:14px;font-weight:700;position:relative;padding-left:10px;margin-bottom:16px}
.footer-title::before{
  content:"";position:absolute;left:0;top:4px;bottom:4px;width:3px;
  background:var(--neon);border-radius:2px;
}
.footer-links li{margin-bottom:10px}
.footer-links a{color:var(--text-2);font-size:14.5px;transition:color .2s ease-out}
.footer-links a:hover{color:var(--neon)}
.footer-info li{color:var(--text-2);font-size:14px;margin-bottom:10px}
.footer-info b{color:var(--text-1);font-weight:600}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);padding:20px 0 28px;color:var(--text-3);font-size:13px;
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .nav-desktop{display:none}
  .menu-toggle{display:flex}
  .header-actions .btn-ghost,.header-actions .btn-neon{display:none}
  .header-actions{margin-left:auto}
  .hero-inner{grid-template-columns:1fr;gap:34px;padding:44px 0 56px}
  .hero-visual img{height:300px}
  .bento{grid-template-columns:repeat(2,1fr);grid-auto-rows:176px}
  .bento-card.big{grid-column:span 2;grid-row:span 2}
  .cta-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .section{padding:52px 0}
  .chips{gap:8px}
  .chip{padding:8px 14px;font-size:13px}
  .bento{grid-template-columns:1fr;grid-auto-rows:200px;gap:16px}
  .bento-card.big{grid-column:span 1;grid-row:span 1}
  .bento-cap p{display:block}
  .track-row,.track-row.flip{grid-template-columns:1fr;gap:18px}
  .track-row.flip .track-media{order:1}
  .track-row.flip .track-body{order:2}
  .track-media img{height:200px}
  .timeline::before{left:5px}
  .tl-item,.tl-item:nth-child(even){
    width:100%;margin-left:0;padding-left:30px;padding-right:0;
  }
  .tl-dot,.tl-item:nth-child(even) .tl-dot{left:-1px;right:auto;top:26px}
  .hero-title{font-size:30px}
  .stat-row{gap:26px}
  .form-card,.rule-card{padding:22px}
  .btn{height:48px}
  .hero-cta .btn{width:100%}
  .closing-inner{padding:22px 0}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .brand-mark{font-size:15px}
  .brand-sub{font-size:10px;letter-spacing:.18em}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding:40px 0 28px}
  .footer-bottom{flex-direction:column;gap:6px}
  .stat-num{font-size:22px}
  .section-title{font-size:22px}
}

/* roulang page: category4 */
:root{
  --bg-0:#0A0D0C;
  --bg-1:#101614;
  --bg-2:#171F1C;
  --neon:#00E29A;
  --neon-soft:#7CFFCB;
  --hot:#FF4D2D;
  --lime:#D8FF3E;
  --line:rgba(255,255,255,.08);
  --text-1:#F2F6F4;
  --text-2:#A8B5B0;
  --text-3:#6E7C77;
  --radius:14px;
  --radius-btn:10px;
  --shadow:0 8px 24px rgba(0,0,0,.45);
  --shadow-neon:0 0 28px rgba(0,226,154,.22);
  --max:1280px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body.page-body{
  margin:0;
  padding:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.88;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color .2s ease-out,border-color .2s ease-out,background-color .2s ease-out;}
button,input{font-family:inherit;font-size:inherit;}
button{cursor:pointer;border:0;background:none;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}
:focus-visible{outline:2px solid var(--neon);outline-offset:2px;border-radius:6px;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,13,12,.88);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:28px;height:68px;}
.brand{display:flex;flex-direction:column;justify-content:center;flex-shrink:0;}
.brand-mark{font-size:17px;font-weight:700;letter-spacing:.02em;color:var(--text-1);line-height:1.2;white-space:nowrap;}
.brand-mark em{font-style:normal;color:var(--neon);margin:0 1px;}
.brand-sub{font-size:10px;letter-spacing:.24em;color:var(--text-3);margin-top:3px;}
.nav-desktop{display:flex;align-items:center;gap:26px;margin-left:auto;}
.nav-link{position:relative;font-size:14.5px;color:var(--text-2);padding:8px 0;}
.nav-link::after{
  content:"";position:absolute;left:50%;right:50%;bottom:0;height:2px;border-radius:2px;
  background:var(--neon);transition:left .25s ease-out,right .25s ease-out,box-shadow .25s ease-out;
}
.nav-link:hover{color:var(--text-1);}
.nav-link.active{color:var(--neon);}
.nav-link.active::after{left:0;right:0;box-shadow:0 0 12px rgba(0,226,154,.85);}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:14.5px;font-weight:600;white-space:nowrap;
  transition:transform .18s ease-out,filter .18s ease-out,background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.btn-hot{background:var(--hot);color:#fff;box-shadow:0 8px 20px rgba(255,77,45,.28);}
.btn-hot:hover{filter:brightness(1.08);transform:translateY(-1px);}
.btn-neon{border:1px solid var(--neon);color:var(--neon);background:transparent;}
.btn-neon:hover{background:rgba(0,226,154,.1);transform:translateY(-1px);}
.btn-ghost{color:var(--text-2);padding:0 12px;height:40px;}
.btn-ghost:hover{color:var(--text-1);}
.btn-line{border:1px solid var(--line);color:var(--text-1);background:var(--bg-1);}
.btn-line:hover{border-color:var(--neon);box-shadow:var(--shadow-neon);transform:translateY(-1px);}
.menu-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:var(--bg-1);
}
.menu-toggle span{display:block;width:18px;height:2px;margin:0 auto;background:var(--text-1);border-radius:2px;transition:transform .2s ease-out;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(4,7,6,.68);z-index:70;
  opacity:0;visibility:hidden;transition:opacity .25s ease-out,visibility .25s ease-out;
}
.drawer-mask.show{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);z-index:80;
  background:var(--bg-1);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .28s ease-out;
  display:flex;flex-direction:column;padding:20px 0 28px;overflow-y:auto;
}
.mobile-drawer.show{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:0 20px 18px;border-bottom:1px solid var(--line);}
.drawer-close{width:38px;height:38px;border:1px solid var(--line);border-radius:10px;font-size:20px;line-height:1;color:var(--text-2);}
.drawer-close:hover{color:var(--neon);border-color:var(--neon);}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-link{padding:15px 20px;font-size:15px;color:var(--text-2);border-bottom:1px solid var(--line);}
.drawer-link:hover{color:var(--text-1);}
.drawer-link.active{color:var(--neon);}
.drawer-cta{padding:20px;display:flex;flex-direction:column;gap:12px;}
.drawer-cta .btn{width:100%;}

/* ---------- Common ---------- */
.section{padding:64px 0;}
.section-tight{padding:44px 0;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap;}
.sec-title{font-size:clamp(22px,2.4vw,29px);color:var(--text-1);letter-spacing:.01em;}
.sec-title::before{
  content:"";display:inline-block;width:4px;height:.82em;background:var(--neon);
  border-radius:2px;margin-right:12px;vertical-align:-2px;box-shadow:0 0 14px rgba(0,226,154,.6);
}
.sec-desc{font-size:14.5px;color:var(--text-2);margin-top:12px;max-width:760px;}
.sec-more{font-size:14px;color:var(--neon);display:inline-flex;align-items:center;gap:6px;}
.sec-more:hover{gap:10px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:11.5px;font-weight:600;letter-spacing:.05em;
  padding:4px 11px;border-radius:999px;line-height:1.6;
}
.badge-neon{color:var(--neon);background:rgba(0,226,154,.12);border:1px solid rgba(0,226,154,.45);}
.badge-hot{color:#FF8A70;background:rgba(255,77,45,.14);border:1px solid rgba(255,77,45,.45);}
.badge-mute{color:var(--text-2);background:rgba(255,255,255,.04);border:1px solid var(--line);}
.divider-line{height:1px;background:var(--line);border:0;margin:0;}

/* ---------- Breadcrumb + Hero ---------- */
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);padding:22px 0 0;flex-wrap:wrap;}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--neon);}
.crumb span.sep{color:rgba(255,255,255,.22);}
.crumb strong{color:var(--text-2);font-weight:500;}
.cat-hero{
  position:relative;
  padding:30px 0 52px;
  background-image:linear-gradient(180deg,rgba(10,13,12,.72),var(--bg-0)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.cat-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(0,226,154,.55),transparent);
}
.hero-grid{display:grid;grid-template-columns:1.45fr 1fr;gap:44px;align-items:center;padding-top:26px;}
.hero-copy .kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.16em;
  color:var(--neon);border:1px solid rgba(0,226,154,.4);background:rgba(0,226,154,.08);
  padding:5px 13px;border-radius:999px;margin-bottom:18px;
}
.hero-copy h1{
  font-size:clamp(30px,4vw,50px);line-height:1.22;letter-spacing:.005em;color:var(--text-1);
}
.hero-copy h1 .accent{color:var(--neon-soft);}
.hero-lead{margin-top:18px;font-size:16.5px;color:var(--text-2);max-width:640px;}
.hero-meta{display:flex;gap:34px;margin-top:30px;flex-wrap:wrap;}
.metric{min-width:112px;}
.metric b{display:block;font-size:26px;color:var(--text-1);font-variant-numeric:tabular-nums;line-height:1.2;}
.metric b i{font-style:normal;font-size:14px;color:var(--text-3);margin-left:3px;}
.metric span{display:block;font-size:12.5px;color:var(--text-3);margin-top:4px;letter-spacing:.04em;}
.hero-figure{position:relative;}
.hero-figure img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius);
  border:1px solid rgba(0,226,154,.32);box-shadow:var(--shadow);
}
.hero-figure .fig-tag{
  position:absolute;left:16px;bottom:16px;
  background:rgba(10,13,12,.82);border:1px solid var(--line);border-radius:999px;
  padding:6px 14px;font-size:12.5px;color:var(--text-2);backdrop-filter:blur(6px);
}

/* ---------- Shot cards (双列大图卡) ---------- */
.shot-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.shot-card{
  position:relative;display:block;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);background:var(--bg-1);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.shot-card:hover{transform:translateY(-2px);border-color:var(--neon);box-shadow:var(--shadow),var(--shadow-neon);}
.shot-card .shot-img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s ease-out,filter .4s ease-out;filter:saturate(.92);}
.shot-card:hover .shot-img{transform:scale(1.045);filter:saturate(1.06);}
.shot-card .shot-body{
  position:absolute;left:0;right:0;bottom:0;padding:26px 24px 22px;
  background:linear-gradient(180deg,rgba(8,11,10,0),rgba(8,11,10,.9) 55%,rgba(8,11,10,.98));
}
.shot-card .shot-tags{display:flex;align-items:center;gap:10px;margin-bottom:12px;flex-wrap:wrap;}
.shot-card h3{font-size:19px;color:#fff;line-height:1.5;max-width:92%;}
.shot-card .shot-time{
  display:block;margin-top:10px;font-size:12.5px;color:var(--text-3);
  font-variant-numeric:tabular-nums;letter-spacing:.03em;
}
.shot-card:hover h3{color:var(--neon-soft);}

/* ---------- Quick table ---------- */
.table-shell{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--bg-1);box-shadow:var(--shadow);}
.table-scroll{overflow-x:auto;}
table.quick-table{width:100%;min-width:700px;border-collapse:collapse;}
table.quick-table thead th{
  background:var(--bg-2);color:var(--text-2);font-size:12.5px;font-weight:600;
  letter-spacing:.1em;text-align:left;padding:15px 22px;border-bottom:1px solid var(--line);white-space:nowrap;
}
table.quick-table tbody td{
  padding:17px 22px;font-size:14.5px;color:var(--text-2);border-bottom:1px solid var(--line);vertical-align:top;
}
table.quick-table tbody tr:last-child td{border-bottom:0;}
table.quick-table tbody tr:nth-child(odd){background:rgba(255,255,255,.022);}
table.quick-table tbody tr:hover{background:rgba(0,226,154,.05);}
table.quick-table td.item-name{color:var(--text-1);font-weight:600;white-space:nowrap;}
table.quick-table td.time-cell{
  color:var(--text-3);font-variant-numeric:tabular-nums;white-space:nowrap;letter-spacing:.02em;
}
.table-note{font-size:13px;color:var(--text-3);margin-top:14px;}

/* ---------- Rhythm list ---------- */
.rhythm-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px 26px;}
.rhythm-item{
  display:flex;gap:18px;padding:20px 22px;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--bg-1);transition:border-color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;
}
.rhythm-item:hover{border-color:var(--neon);transform:translateY(-2px);box-shadow:var(--shadow-neon);}
.rhythm-time{
  flex-shrink:0;font-size:13px;font-weight:700;color:var(--neon);
  font-variant-numeric:tabular-nums;letter-spacing:.04em;padding-top:3px;min-width:76px;
}
.rhythm-body h3{font-size:16.5px;color:var(--text-1);margin-bottom:6px;}
.rhythm-body p{font-size:14px;color:var(--text-2);line-height:1.78;}

/* ---------- Subscribe ---------- */
.sub-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:28px;align-items:stretch;}
.panel{
  border:1px solid var(--line);border-radius:var(--radius);background:var(--bg-1);
  padding:30px;box-shadow:var(--shadow);
}
.panel h3{font-size:20px;color:var(--text-1);margin-bottom:8px;}
.panel .panel-sub{font-size:14px;color:var(--text-2);margin-bottom:24px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;color:var(--text-3);margin-bottom:8px;letter-spacing:.04em;}
.field input{
  width:100%;height:46px;padding:0 16px;border-radius:10px;
  background:var(--bg-2);border:1px solid var(--line);color:var(--text-1);
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.field input::placeholder{color:var(--text-3);}
.field input:focus{outline:none;border-color:var(--neon);box-shadow:0 0 0 2px rgba(0,226,154,.22);}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.form-tip{font-size:12.5px;color:var(--text-3);margin-top:14px;line-height:1.7;}
.form-msg{margin-top:14px;font-size:13.5px;color:var(--neon);display:none;}
.form-msg.show{display:block;}
.panel-submit{width:100%;margin-top:6px;}
.sub-list li{
  display:flex;gap:12px;font-size:14.5px;color:var(--text-2);padding:13px 0;border-bottom:1px solid var(--line);
}
.sub-list li:last-child{border-bottom:0;}
.sub-list li::before{
  content:"";flex-shrink:0;width:7px;height:7px;margin-top:9px;border-radius:2px;
  background:var(--neon);box-shadow:0 0 10px rgba(0,226,154,.7);
}
.sub-list b{color:var(--text-1);font-weight:600;}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:920px;}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius);background:var(--bg-1);
  overflow:hidden;transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.faq-item.open{border-color:rgba(0,226,154,.5);box-shadow:var(--shadow-neon);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:19px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--text-1);
}
.faq-q:hover{color:var(--neon-soft);}
.faq-icon{
  flex-shrink:0;width:26px;height:26px;border-radius:8px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;font-size:15px;color:var(--neon);
  transition:transform .25s ease-out,background-color .2s ease-out;line-height:1;
}
.faq-item.open .faq-icon{transform:rotate(180deg);background:rgba(0,226,154,.12);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease-out;}
.faq-a-inner{
  padding:0 22px 22px 22px;font-size:14.8px;color:var(--text-2);line-height:1.86;
  border-left:3px solid transparent;
}
.faq-item.open .faq-a-inner{border-left-color:var(--neon);}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:linear-gradient(120deg,rgba(255,77,45,.12),rgba(0,226,154,.08) 60%,transparent);
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:26px;padding:38px 0;flex-wrap:wrap;}
.cta-inner h2{font-size:clamp(20px,2.2vw,26px);color:var(--text-1);}
.cta-inner p{font-size:14.5px;color:var(--text-2);margin-top:8px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--line);background:var(--bg-1);margin-top:0;}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:36px;padding:56px 0 40px;
}
.footer-brand .brand-mark{font-size:18px;color:var(--text-1);}
.footer-brand p{font-size:13.8px;color:var(--text-2);line-height:1.85;margin-top:14px;max-width:380px;}
.footer-title{
  font-size:14px;font-weight:700;color:var(--text-1);margin-bottom:16px;
  padding-left:11px;position:relative;letter-spacing:.04em;
}
.footer-title::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:14px;background:var(--neon);border-radius:2px;
}
.footer-links{display:grid;gap:11px;}
.footer-links a{font-size:13.8px;color:var(--text-2);}
.footer-links a:hover{color:var(--neon);}
.footer-info{display:grid;gap:11px;}
.footer-info li{font-size:13.6px;color:var(--text-2);line-height:1.7;}
.footer-info b{color:var(--text-3);font-weight:600;margin-right:4px;}
.footer-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);font-size:13px;color:var(--text-3);
}

/* ---------- Responsive ---------- */
@media (max-width:1100px){
  .nav-desktop{gap:18px;}
  .nav-link{font-size:13.5px;}
  .header-actions .btn-ghost{display:none;}
}
@media (max-width:1023px){
  .nav-desktop{display:none;}
  .header-actions .btn-line,.header-actions .btn-ghost{display:none;}
  .menu-toggle{display:flex;}
  .header-inner{justify-content:space-between;}
  .hero-grid{grid-template-columns:1fr;gap:32px;padding-top:18px;}
  .sub-grid{grid-template-columns:1fr;}
  .rhythm-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:44px 0 32px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:46px 0;}
  .section-tight{padding:34px 0;}
  .shot-grid{grid-template-columns:1fr;gap:18px;}
  .shot-card .shot-body{padding:20px 18px 18px;}
  .shot-card h3{font-size:17px;max-width:100%;}
  .hero-copy h1{font-size:30px;}
  .hero-lead{font-size:15.5px;}
  .hero-meta{gap:22px;}
  .metric{min-width:88px;}
  .metric b{font-size:22px;}
  .panel{padding:22px 18px;}
  .field-row{grid-template-columns:1fr;}
  .btn{width:100%;}
  .header-actions .btn{width:auto;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .faq-q{padding:16px 16px;font-size:15px;}
  .faq-a-inner{padding:0 16px 18px 16px;}
  table.quick-table tbody td{padding:14px 16px;font-size:13.8px;}
  table.quick-table thead th{padding:13px 16px;}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr;}
  .hero-figure img{aspect-ratio:16/11;}
  .crumb{font-size:12.5px;}
}