/* roulang page: index */
:root{
  --c-bg:#0A0D14;
  --c-panel:#111726;
  --c-panel-2:#161D2E;
  --c-line:#1F2839;
  --c-line-2:#2B3448;
  --c-text:#EEF1F6;
  --c-text-2:#A8B2C4;
  --c-text-3:#6E7A90;
  --c-body:#C7CEDC;
  --c-key:#22D3B6;
  --c-key-deep:#17A38C;
  --c-hot:#FF5F57;
  --c-warn:#F0B429;
  --r-btn:10px;
  --r-card:16px;
  --r-block:20px;
  --sh:0 10px 30px rgba(0,0,0,.35);
  --sh-soft:0 6px 18px rgba(0,0,0,.28);
  --font: "PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-body);
  font-family:var(--font);
  font-size:16px;
  line-height:1.9;
  letter-spacing:.005em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-text-2);text-decoration:none;transition:color .18s ease-out;}
a:hover,a:focus-visible{color:var(--c-key);}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:0;}
h1,h2,h3,h4{margin:0;color:var(--c-text);}
p{margin:0 0 1.2em;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-key);outline-offset:2px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1024px){.container-x{max-width:1280px;padding:0 32px;}}

.section{padding:56px 0;}
@media (min-width:768px){.section{padding:72px 0;}}
@media (min-width:1024px){.section{padding:96px 0;}}
.section--tight{padding:40px 0;}
@media (min-width:1024px){.section--tight{padding:64px 0;}}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--c-key);letter-spacing:.08em;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:999px;background:var(--c-key);display:block;}
h1{
  font-size:clamp(30px,5vw,54px);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.15;
}
h2{
  font-size:clamp(24px,3.2vw,36px);
  font-weight:700;
  line-height:1.25;
  letter-spacing:-.01em;
}
h2.with-bar{position:relative;padding-left:16px;}
h2.with-bar::before{content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:2px;background:var(--c-key);}
h3{font-size:20px;font-weight:700;line-height:1.4;}
h4{font-size:17px;font-weight:600;line-height:1.5;}
.lead{font-size:15px;line-height:1.85;color:var(--c-text-2);}
.meta{font-size:13px;color:var(--c-text-3);line-height:1.7;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px;}
.section-head p{max-width:640px;margin:12px 0 0;font-size:15px;color:var(--c-text-2);line-height:1.85;}

/* ===== 导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,13,20,.92);
  border-bottom:1px solid var(--c-line);
  transition:background .2s ease-out,border-color .2s ease-out;
}
.site-header.is-scrolled{background:rgba(10,13,20,.98);border-bottom-color:rgba(34,211,182,.45);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:60px;}
@media (min-width:1024px){.nav-inner{height:72px;}}
.brand{display:inline-flex;align-items:center;gap:10px;}
.brand-mark{
  width:24px;height:24px;flex:none;position:relative;
  background:
    linear-gradient(var(--c-key),var(--c-key)) center/2px 100% no-repeat,
    linear-gradient(var(--c-key),var(--c-key)) center/100% 2px no-repeat;
  transform:rotate(0deg);
}
.brand-mark::after{
  content:"";position:absolute;inset:5px;border:1px solid rgba(34,211,182,.55);transform:rotate(45deg);
}
.brand-text{display:flex;align-items:baseline;gap:3px;white-space:nowrap;}
.brand-text b{font-size:17px;font-weight:800;color:var(--c-text);letter-spacing:.01em;}
.brand-text span{font-size:13px;font-weight:400;color:var(--c-text-2);letter-spacing:.04em;}
.nav-links{display:none;align-items:center;gap:30px;}
@media (min-width:1024px){.nav-links{display:flex;}}
.nav-links a{
  position:relative;font-size:14px;font-weight:600;color:var(--c-text-2);padding:6px 0 10px;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--c-key);
  transition:width .2s ease-out;
}
.nav-links a:hover::after,.nav-links a:focus-visible::after{width:100%;}
.nav-links a.is-active{color:var(--c-key);}
.nav-links a.is-active::after{width:60%;}
.nav-side{display:flex;align-items:center;gap:12px;}
.status-badge{
  display:none;align-items:center;gap:7px;font-size:12px;color:var(--c-text-2);
  border:1px solid var(--c-line);border-radius:999px;padding:5px 11px;
}
@media (min-width:768px){.status-badge{display:inline-flex;}}
.status-badge i{width:6px;height:6px;border-radius:999px;background:var(--c-key);display:block;}
.nav-count{
  display:none;font-size:12px;color:var(--c-text-3);padding:5px 11px;border-radius:999px;
  border:1px dashed var(--c-line-2);font-variant-numeric:tabular-nums;
}
@media (min-width:1180px){.nav-count{display:inline-block;}}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:14px;font-weight:700;letter-spacing:.02em;
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn-sm{height:40px;padding:0 16px;font-size:13px;}
.btn-primary{background:var(--c-key);color:#07110F;}
.btn-primary:hover{background:#3BE0C6;color:#07110F;transform:translateY(-2px);box-shadow:0 8px 20px rgba(34,211,182,.18);}
.btn-primary:active{background:var(--c-key-deep);transform:translateY(0);}
.btn-ghost{border:1px solid var(--c-line-2);color:var(--c-text-2);}
.btn-ghost:hover{border-color:var(--c-key);color:var(--c-key);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);border-color:var(--c-key-deep);color:var(--c-key-deep);}
.btn-hot{background:var(--c-hot);color:#160605;}
.btn-hot:hover{background:#FF7A73;color:#160605;transform:translateY(-2px);}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;}

.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--c-text-2);}
.link-arrow span.arr{transition:transform .18s ease-out;}
.link-arrow:hover span.arr{transform:translateX(4px);}
.link-underline{position:relative;font-size:14px;font-weight:600;color:var(--c-text-2);padding-bottom:3px;}
.link-underline::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--c-key);transition:width .2s ease-out;}
.link-underline:hover::after{width:100%;}

.burger{display:inline-flex;flex-direction:column;justify-content:center;gap:5px;width:40px;height:40px;border:1px solid var(--c-line);border-radius:var(--r-btn);align-items:center;}
.burger span{display:block;width:16px;height:1.5px;background:var(--c-text-2);transition:transform .2s ease-out,opacity .2s ease-out;}
@media (min-width:1024px){.burger{display:none;}}
.drawer{
  position:fixed;inset:0;z-index:80;background:var(--c-bg);
  transform:translateX(100%);transition:transform .24s ease-out;
  display:flex;flex-direction:column;padding:20px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px;}
.drawer-nav a{display:block;font-size:18px;font-weight:700;color:var(--c-text);padding:16px 0;border-bottom:1px solid var(--c-line);}
.drawer-nav a.is-active{color:var(--c-key);}
.drawer-foot{margin-top:auto;padding-top:28px;display:flex;flex-direction:column;gap:12px;}

/* ===== Hero ===== */
.hero{
  position:relative;overflow:hidden;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--c-line);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,13,20,.86),rgba(10,13,20,.92));
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(238,241,246,.06) 1px,transparent 1px);
  background-size:28px 28px;
}
.hero-inner{position:relative;z-index:2;padding:52px 0 56px;}
@media (min-width:1024px){.hero-inner{padding:84px 0 92px;}}
.hero-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:center;}
@media (min-width:1024px){.hero-grid{grid-template-columns:6fr 6fr;gap:48px;}}
.hero-copy .lead{max-width:560px;margin-top:18px;font-size:16px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-note{margin-top:20px;font-size:13px;color:var(--c-text-3);}
.hero-status{
  background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-block);
  padding:24px;box-shadow:var(--sh);
}
@media (min-width:1024px){.hero-status{padding:28px;}}
.countdown{display:flex;gap:14px;align-items:flex-end;margin:18px 0 6px;}
.count-unit{display:flex;flex-direction:column;align-items:center;gap:2px;}
.count-unit b{font-size:36px;font-weight:800;color:var(--c-text);line-height:1;font-variant-numeric:tabular-nums;}
@media (min-width:1024px){.count-unit b{font-size:40px;}}
.count-unit i{font-style:normal;font-size:12px;color:var(--c-text-3);}
.count-sep{font-size:26px;font-weight:800;color:var(--c-line-2);line-height:1;padding-bottom:6px;}
.hero-status hr{border:0;border-top:1px solid var(--c-line);margin:20px 0;}
.stat-row{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;}
.stat-row div{background:var(--c-panel-2);border:1px solid var(--c-line);border-radius:var(--r-btn);padding:12px 14px;}
.stat-row b{display:block;font-size:20px;font-weight:800;color:var(--c-key);font-variant-numeric:tabular-nums;}
.stat-row span{font-size:12px;color:var(--c-text-3);}

.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px;}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid var(--c-line-2);border-radius:999px;padding:8px 14px;
  font-size:13px;color:var(--c-text-2);background:rgba(17,23,38,.6);
  transition:border-color .18s ease-out,color .18s ease-out,transform .18s ease-out;
}
.chip:hover,.chip:focus-visible{border-color:var(--c-key);color:var(--c-key);transform:translateY(-2px);}

/* ===== 卡片通用 ===== */
.card{
  background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-card);
  transition:border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.card:hover{border-color:var(--c-key);transform:translateY(-2px);box-shadow:var(--sh-soft);}
.card:active{transform:translateY(0);border-color:var(--c-key-deep);}
.card-pad{padding:20px;}
@media (min-width:1024px){.card-pad{padding:28px;}}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;padding:4px 10px;border-radius:999px;
  background:rgba(34,211,182,.12);color:var(--c-key);
}
.badge i{width:6px;height:6px;border-radius:999px;background:var(--c-key);display:block;}
.badge--hot{background:rgba(255,95,87,.12);color:var(--c-hot);}
.badge--hot i{background:var(--c-hot);}
.badge--warn{background:rgba(240,180,41,.12);color:var(--c-warn);}
.badge--warn i{background:var(--c-warn);}
.badge--mute{background:rgba(168,178,196,.1);color:var(--c-text-2);}
.badge--mute i{background:var(--c-text-3);}

/* ===== 入口速览 图文 ===== */
.split-grid{display:grid;grid-template-columns:1fr;gap:24px;}
@media (min-width:900px){.split-grid{grid-template-columns:1fr 1fr;gap:28px;}}
.media-card{overflow:hidden;}
.media-card .thumb{aspect-ratio:16/9;background:var(--c-panel-2);border-bottom:1px solid var(--c-line);overflow:hidden;}
.media-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.media-card:hover .thumb img{transform:scale(1.03);}
.media-body{padding:20px;}
@media (min-width:1024px){.media-body{padding:26px;}}
.media-body p{margin:10px 0 16px;font-size:15px;color:var(--c-text-2);line-height:1.85;}

/* ===== 阶梯 ===== */
.ladder{position:relative;display:flex;flex-direction:column;gap:24px;}
@media (min-width:1024px){.ladder{gap:40px;}}
.step{position:relative;display:grid;grid-template-columns:1fr;gap:16px;}
@media (min-width:900px){
  .step{grid-template-columns:120px 1fr;gap:28px;align-items:start;}
  .step:nth-child(even){margin-left:8%;}
  .step:nth-child(odd){margin-right:6%;}
}
.step-index{
  display:flex;align-items:baseline;gap:8px;
  font-variant-numeric:tabular-nums;
}
.step-index b{font-size:44px;font-weight:800;color:var(--c-line-2);line-height:1;letter-spacing:-.03em;}
.step:nth-child(2) .step-index b{font-size:48px;color:#243046;}
.step:nth-child(3) .step-index b{font-size:52px;color:#2A3A50;}
.step:nth-child(4) .step-index b{font-size:56px;color:#31445E;}
.step-index i{font-style:normal;font-size:13px;color:var(--c-text-3);}
.step-card{background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-card);padding:20px;transition:border-color .18s ease-out,transform .18s ease-out;}
@media (min-width:1024px){.step-card{padding:28px;}}
.step-card:hover{border-color:var(--c-key);transform:translateY(-2px);}
.step-top{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;margin-bottom:6px;}
.rule-list li{position:relative;padding-left:16px;font-size:15px;line-height:1.7;color:var(--c-text-2);margin-top:8px;}
.rule-list li::before{content:"";position:absolute;left:0;top:.62em;width:4px;height:4px;background:var(--c-key);border-radius:1px;}
.step-card .link-arrow{margin-top:18px;}

@media (max-width:899px){
  .ladder::before{content:"";position:absolute;left:5px;top:6px;bottom:6px;width:2px;background:var(--c-key);opacity:.35;}
  .step{padding-left:24px;}
  .step::before{content:"";position:absolute;left:0;top:8px;width:12px;height:12px;border-radius:999px;background:var(--c-key);}
}

/* ===== 对比表 ===== */
.compare-wrap{border:1px solid var(--c-line);border-radius:var(--r-block);overflow:hidden;background:var(--c-panel);}
.table-scroll{max-height:none;overflow-x:auto;}
table.compare{width:100%;border-collapse:collapse;min-width:820px;}
table.compare th,table.compare td{border-bottom:1px solid var(--c-line);padding:16px 18px;text-align:left;font-size:15px;vertical-align:top;}
table.compare thead th{
  position:sticky;top:0;background:var(--c-panel);z-index:2;
  font-size:14px;font-weight:700;color:var(--c-text);
}
table.compare thead th small{display:block;font-size:12px;font-weight:400;color:var(--c-text-3);margin-top:4px;}
table.compare tbody tr:nth-child(odd){background:#0F1420;}
table.compare tbody tr:nth-child(even){background:var(--c-panel);}
table.compare tbody th{font-weight:600;color:var(--c-text-2);font-size:14px;}
table.compare td{color:var(--c-text-2);}
table.compare tr.is-diff{background:rgba(255,95,87,.06)!important;}
table.compare tr.is-diff td:first-of-type,table.compare tr.is-diff th{border-left:2px solid var(--c-hot);}
table.compare .mark{color:var(--c-key);font-weight:600;}
table.compare .num{font-variant-numeric:tabular-nums;}
.plan-head{display:inline-flex;align-items:center;gap:8px;}
.plan-head em{font-style:normal;font-size:11px;font-weight:700;color:var(--c-key);border:1px solid rgba(34,211,182,.45);border-radius:999px;padding:1px 8px;}

.mobile-plans{display:grid;gap:16px;}
@media (min-width:1024px){.mobile-plans{display:none;}}
.plan-card{background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;}
.plan-card.is-reco{border-top:2px solid var(--c-key);}
.plan-card-head{padding:18px 20px;border-bottom:1px solid var(--c-line);display:flex;align-items:center;justify-content:space-between;gap:12px;}
.plan-rows{padding:4px 20px 18px;}
.plan-rows div{display:flex;justify-content:space-between;gap:16px;padding:10px 0;border-bottom:1px solid rgba(31,40,57,.7);font-size:14px;}
.plan-rows div:last-child{border-bottom:0;}
.plan-rows span:first-child{color:var(--c-text-3);}
.plan-rows span:last-child{color:var(--c-text-2);text-align:right;}
@media (min-width:1024px){.desktop-compare{display:block;}}

/* ===== 限时入口 ===== */
.urgent{
  display:flex;flex-wrap:wrap;align-items:center;gap:24px;justify-content:space-between;
  border:1px solid rgba(255,95,87,.55);background:rgba(255,95,87,.05);
  border-radius:var(--r-block);padding:22px;
}
@media (min-width:1024px){.urgent{padding:26px 32px;}}
.urgent-count{display:flex;align-items:flex-end;gap:10px;}
.urgent-count .u{display:flex;flex-direction:column;align-items:center;}
.urgent-count .u b{font-size:32px;font-weight:800;color:var(--c-text);line-height:1;font-variant-numeric:tabular-nums;}
@media (min-width:1024px){.urgent-count .u b{font-size:38px;}}
.urgent-count .u i{font-style:normal;font-size:12px;color:var(--c-hot);}
.urgent-count .sp{color:rgba(255,95,87,.6);font-weight:800;font-size:24px;line-height:1;padding-bottom:8px;}
.urgent-text{flex:1 1 300px;}
.urgent-text h3{margin-bottom:6px;}
.urgent-text p{margin:0;font-size:14px;color:var(--c-text-2);}
.tick{animation:tickPulse 1s ease-out;}
@keyframes tickPulse{0%{transform:scale(1);}50%{transform:scale(1.06);}100%{transform:scale(1);}}

/* ===== 资讯 ===== */
.news-feature{display:grid;grid-template-columns:1fr;overflow:hidden;margin-bottom:20px;}
@media (min-width:900px){.news-feature{grid-template-columns:1.05fr 1fr;}}
.news-feature .media{aspect-ratio:16/9;background:var(--c-panel-2);overflow:hidden;}
@media (min-width:900px){.news-feature .media{aspect-ratio:auto;height:100%;min-height:280px;}}
.news-feature .media img{width:100%;height:100%;object-fit:cover;}
.news-feature .body{padding:22px;}
@media (min-width:1024px){.news-feature .body{padding:32px;}}
.news-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:640px){.news-grid{grid-template-columns:1fr 1fr;}}
@media (min-width:1024px){.news-grid{grid-template-columns:repeat(3,1fr);}}
.news-card{display:flex;flex-direction:column;overflow:hidden;height:100%;}
.news-card .media{aspect-ratio:16/9;background:var(--c-panel-2);overflow:hidden;border-bottom:1px solid var(--c-line);}
.news-card .media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.news-card:hover .media img{transform:scale(1.03);}
.news-card .body{padding:18px;display:flex;flex-direction:column;flex:1 1 auto;}
.news-card h3{font-size:17px;line-height:1.5;margin:10px 0 8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card p{font-size:14px;color:var(--c-text-2);line-height:1.75;margin:0 0 14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card .foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  min-height:180px;border:1px dashed var(--c-line-2);border-radius:var(--r-card);
  background:var(--c-panel);text-align:center;padding:28px;
}
.empty-state svg{opacity:.6;}
.empty-state strong{color:var(--c-text);font-size:16px;font-weight:600;}
.empty-state span{font-size:14px;color:var(--c-text-3);}

/* ===== 反馈 ===== */
.quote-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:768px){.quote-grid{grid-template-columns:repeat(3,1fr);}}
.quote{background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-card);padding:22px;display:flex;flex-direction:column;gap:14px;}
.quote p{margin:0;font-size:15px;color:var(--c-body);line-height:1.85;}
.quote-who{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:6px;}
.quote-who img{width:44px;height:44px;border-radius:999px;object-fit:cover;background:var(--c-panel-2);border:1px solid var(--c-line);}
.quote-who b{display:block;font-size:14px;color:var(--c-text);font-weight:600;}
.quote-who span{font-size:12px;color:var(--c-text-3);}
.stars{display:flex;gap:3px;}
.stars i{width:12px;height:12px;background:var(--c-key);clip-path:polygon(50% 0,61% 35%,98% 35%,68% 57%,79% 91%,50% 70%,21% 91%,32% 57%,2% 35%,39% 35%);display:block;}

/* ===== FAQ ===== */
.faq{border-top:1px solid var(--c-line);}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:18px 0 18px 0;text-align:left;font-size:17px;font-weight:600;color:var(--c-text);
  transition:color .18s ease-out,padding-left .18s ease-out;
}
.faq-q:hover{color:var(--c-key);}
.faq-item.is-open .faq-q{color:var(--c-key);padding-left:14px;position:relative;}
.faq-item.is-open .faq-q::before{content:"";position:absolute;left:0;top:20px;bottom:20px;width:2px;background:var(--c-key);}
.faq-q .arw{flex:none;width:14px;height:14px;border-right:2px solid var(--c-text-3);border-bottom:2px solid var(--c-text-3);transform:rotate(45deg);transition:transform .2s ease-out;}
.faq-item.is-open .faq-q .arw{transform:rotate(-135deg);border-color:var(--c-key);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease-out;}
.faq-a p{margin:0 0 20px;font-size:15px;line-height:1.85;color:var(--c-text-2);max-width:880px;}

/* ===== 表单 ===== */
.contact-grid{display:grid;grid-template-columns:1fr;gap:28px;}
@media (min-width:900px){.contact-grid{grid-template-columns:5fr 7fr;gap:48px;}}
.contact-points li{display:flex;gap:12px;align-items:flex-start;margin-top:18px;font-size:15px;color:var(--c-text-2);line-height:1.8;}
.contact-points i{flex:none;width:22px;height:22px;border-radius:999px;background:rgba(34,211,182,.12);color:var(--c-key);font-style:normal;font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:3px;}
.form-panel{background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-block);padding:20px;}
@media (min-width:1024px){.form-panel{padding:32px;}}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;color:var(--c-text-3);margin-bottom:8px;}
.field input[type=text],.field input[type=tel],.field select,.field textarea{
  width:100%;height:48px;background:#0F1420;border:1px solid var(--c-line);border-radius:var(--r-btn);
  padding:0 14px;font-size:15px;color:var(--c-text);transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.field textarea{height:auto;min-height:120px;padding:12px 14px;line-height:1.8;resize:vertical;}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--c-text-3) 50%),linear-gradient(135deg,var(--c-text-3) 50%,transparent 50%);background-position:calc(100% - 20px) 22px,calc(100% - 14px) 22px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--c-key);box-shadow:0 0 0 3px rgba(34,211,182,.15);}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--c-hot);}
.field .err{display:none;font-size:12px;color:var(--c-hot);margin-top:6px;}
.field.has-error .err{display:block;}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--c-text-2);line-height:1.7;}
.check-row input{width:16px;height:16px;margin-top:4px;accent-color:#22D3B6;}
.form-foot{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:8px;}
.form-msg{display:none;font-size:14px;color:var(--c-key);}
.form-msg.is-visible{display:block;}
.spinner{width:14px;height:14px;border-radius:999px;border:2px solid rgba(7,17,15,.35);border-top-color:#07110F;animation:spin .7s linear infinite;display:none;}
@keyframes spin{to{transform:rotate(360deg);}}

/* ===== CTA 条 ===== */
.cta-bar{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
  border:1px solid var(--c-line);background:var(--c-panel);border-radius:var(--r-block);padding:22px;
}
@media (min-width:1024px){.cta-bar{padding:24px 32px;}}
.cta-bar h3{margin-bottom:4px;}
.cta-bar p{margin:0;font-size:14px;color:var(--c-text-2);}

/* ===== 页脚 ===== */
.site-footer{background:var(--c-bg);border-top:1px solid var(--c-line);padding:48px 0 0;margin-top:8px;}
@media (min-width:1024px){.site-footer{padding-top:64px;}}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}}
.footer-col h4{font-size:14px;font-weight:700;color:var(--c-text);margin-bottom:16px;letter-spacing:.04em;}
.footer-col li{margin-top:10px;}
.footer-col a,.footer-col p{font-size:14px;color:var(--c-text-2);line-height:1.8;}
.footer-col p{margin:12px 0 0;}
.footer-key{display:inline-block;margin-top:14px;font-size:12px;color:var(--c-text-3);border:1px solid var(--c-line);border-radius:999px;padding:4px 12px;}
.footer-bottom{
  margin-top:40px;border-top:1px solid var(--c-line);padding:20px 0 28px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--c-text-3);
}
.footer-bottom .dot{color:var(--c-line-2);padding:0 8px;}

/* ===== 进场动效 ===== */
.reveal{opacity:0;transform:translateY(12px);}
.reveal.is-in{opacity:1;transform:none;transition:opacity .32s ease-out,transform .32s ease-out;}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --c-bg:#0A0D14;
  --c-panel:#111726;
  --c-panel-2:#161D2E;
  --c-line:#1F2839;
  --c-line-2:#2B3448;
  --c-text:#EEF1F6;
  --c-text-2:#A8B2C4;
  --c-text-3:#6E7A90;
  --c-body:#C7CEDC;
  --c-key:#22D3B6;
  --c-key-deep:#17A38C;
  --c-hot:#FF5F57;
  --c-warn:#F0B429;
  --r-btn:10px;
  --r-card:16px;
  --r-block:20px;
  --sh-1:0 10px 30px rgba(0,0,0,.35);
  --ease:cubic-bezier(.22,.61,.36,1);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--c-bg);color:var(--c-body);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.9;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--c-text-2);text-decoration:none;transition:color .18s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease);}
a:hover{color:var(--c-key);}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
h1{font-size:clamp(30px,5vw,54px);font-weight:800;line-height:1.15;letter-spacing:-.02em;color:var(--c-text);}
h2{font-size:clamp(24px,3.2vw,36px);font-weight:700;line-height:1.25;color:var(--c-text);letter-spacing:-.01em;}
h3{font-size:20px;font-weight:700;color:var(--c-text);line-height:1.4;}
h4{font-size:17px;font-weight:600;color:var(--c-text);}
.num{font-variant-numeric:tabular-nums;font-weight:800;}
::selection{background:rgba(34,211,182,.25);color:#fff;}
:focus-visible{outline:2px solid rgba(34,211,182,.65);outline-offset:2px;border-radius:6px;}

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

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;height:60px;
  background:rgba(10,13,20,.92);
  backdrop-filter:none;
  border-bottom:1px solid var(--c-line);
  transition:background-color .2s var(--ease),border-color .2s var(--ease);
}
.site-header.is-scrolled{background:rgba(10,13,20,.985);border-bottom-color:var(--c-key);}
.nav-inner{display:flex;align-items:center;gap:24px;height:60px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-text);}
.brand:hover{color:var(--c-text);}
.brand-mark{
  width:22px;height:22px;flex:0 0 auto;display:inline-block;
  background:linear-gradient(135deg,#22D3B6,#17A38C);
  clip-path:polygon(50% 0%,61% 39%,100% 50%,61% 61%,50% 100%,39% 61%,0% 50%,39% 39%);
}
.brand-text{display:inline-flex;align-items:baseline;gap:2px;letter-spacing:.02em;white-space:nowrap;}
.brand-text b{font-size:17px;font-weight:800;color:var(--c-text);}
.brand-text span{font-size:14px;font-weight:400;color:var(--c-text-2);}
.nav-links{display:none;align-items:center;gap:4px;margin-left:12px;}
.nav-links a{
  position:relative;padding:8px 12px;font-size:15px;font-weight:500;color:var(--c-text-2);border-radius:8px;
}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:2px;width:0;height:2px;background:var(--c-key);
  transform:translateX(-50%);transition:width .2s var(--ease);
}
.nav-links a:hover{color:var(--c-text);}
.nav-links a:hover::after{width:60%;}
.nav-links a.is-active{color:var(--c-key);}
.nav-links a.is-active::after{width:60%;}
.nav-side{display:flex;align-items:center;gap:14px;margin-left:auto;}
.status-badge{
  display:none;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;
  font-size:12px;color:var(--c-key);background:rgba(34,211,182,.12);white-space:nowrap;
}
.status-badge i{width:6px;height:6px;border-radius:50%;background:var(--c-key);display:inline-block;}
.nav-count{display:none;font-size:13px;color:var(--c-text-3);font-variant-numeric:tabular-nums;font-weight:700;white-space:nowrap;}
.burger{
  width:40px;height:40px;border:1px solid var(--c-line-2);background:transparent;border-radius:var(--r-btn);
  display:inline-flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer;
  transition:border-color .18s var(--ease);
}
.burger span{display:block;width:16px;height:2px;background:var(--c-text-2);transition:background-color .18s var(--ease);}
.burger:hover{border-color:var(--c-key);}
.burger:hover span{background:var(--c-key);}

@media (min-width:1024px){
  .site-header,.nav-inner{height:72px;}
  .nav-links{display:flex;}
  .status-badge,.nav-count{display:inline-flex;}
  .burger{display:none;}
}
.drawer{
  position:fixed;inset:0;z-index:90;background:var(--c-bg);
  transform:translateY(-100%);opacity:0;pointer-events:none;
  transition:transform .24s var(--ease),opacity .24s var(--ease);
  display:flex;flex-direction:column;padding:22px 20px 28px;overflow-y:auto;
}
.drawer.is-open{transform:translateY(0);opacity:1;pointer-events:auto;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;}
.drawer-close{width:40px;height:40px;border:1px solid var(--c-line-2);background:transparent;border-radius:var(--r-btn);color:var(--c-text-2);cursor:pointer;font-size:18px;}
.drawer-close:hover{border-color:var(--c-key);color:var(--c-key);}
.drawer nav{display:flex;flex-direction:column;gap:2px;}
.drawer nav a{font-size:18px;font-weight:700;color:var(--c-text);padding:14px 0;border-bottom:1px solid var(--c-line);}
.drawer nav a:hover,.drawer nav a.is-active{color:var(--c-key);}
.drawer-foot{margin-top:auto;padding-top:24px;display:flex;flex-direction:column;gap:12px;}

/* ============ 按钮 / 徽章 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;letter-spacing:.02em;cursor:pointer;border:1px solid transparent;
  transition:background-color .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}
.btn-primary{background:var(--c-key);color:#07110F;border-color:var(--c-key);}
.btn-primary:hover{background:#2FE3C6;color:#07110F;transform:translateY(-2px);box-shadow:0 10px 24px rgba(0,0,0,.35);}
.btn-primary:active{background:var(--c-key-deep);transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--c-line-2);color:var(--c-text);}
.btn-ghost:hover{border-color:var(--c-key);color:var(--c-key);transform:translateY(-2px);}
.btn-ghost:active{border-color:var(--c-key-deep);color:var(--c-key-deep);transform:translateY(0);}
.btn[disabled]{opacity:.4;cursor:not-allowed;}
.link-arrow{color:var(--c-text-2);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.link-arrow .arr{transition:transform .18s var(--ease);}
.link-arrow:hover{color:var(--c-key);}
.link-arrow:hover .arr{transform:translateX(4px);}
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;
  font-size:12px;line-height:1.6;color:var(--c-key);background:rgba(34,211,182,.12);
}
.chip-hot{color:var(--c-hot);background:rgba(255,95,87,.12);}
.chip-plain{color:var(--c-text-2);background:rgba(168,178,196,.1);}

/* ============ 文章页头部 ============ */
.article-band{
  position:relative;padding:56px 0 44px;
  background-image:radial-gradient(rgba(238,241,246,.06) 1px,transparent 1px),url("/assets/images/backpic/back-2.webp");
  background-size:28px 28px,cover;
  background-position:0 0,center;
  border-bottom:1px solid var(--c-line);
}
.article-band::before{content:"";position:absolute;inset:0;background:rgba(10,13,20,.86);}
.article-band .container-x{position:relative;z-index:1;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);margin-bottom:22px;}
.crumbs a{color:var(--c-text-3);}
.crumbs a:hover{color:var(--c-key);}
.crumbs .sep{color:#39445A;}
.crumbs .current{color:var(--c-text-2);}
.article-band h1{max-width:900px;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:20px;font-size:13px;color:var(--c-text-3);}
.article-meta .vline{width:1px;height:12px;background:var(--c-line-2);display:inline-block;}

/* ============ 正文 ============ */
.article-main{padding:56px 0 64px;}
.article-layout{max-width:760px;margin:0 auto;}
.article-body{font-size:16px;line-height:1.95;color:var(--c-body);}
.article-body>*+*{margin-top:1.2em;}
.article-body p{margin-bottom:1.2em;}
.article-body h2{
  position:relative;font-size:clamp(22px,2.4vw,28px);font-weight:700;line-height:1.35;color:var(--c-text);
  margin-top:2em;margin-bottom:.8em;padding-left:14px;
}
.article-body h2::before{content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;border-radius:2px;background:var(--c-key);}
.article-body h3{font-size:19px;font-weight:700;color:var(--c-text);margin-top:1.6em;margin-bottom:.6em;}
.article-body h4{font-size:17px;font-weight:600;color:var(--c-text);margin-top:1.4em;}
.article-body a{color:var(--c-key);text-decoration:underline;text-underline-offset:3px;word-break:break-word;}
.article-body a:hover{color:#2FE3C6;}
.article-body strong{color:var(--c-text);font-weight:700;}
.article-body ul,.article-body ol{margin:0 0 1.2em 1.4em;padding-left:1.4em;line-height:1.9;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:.5em;}
.article-body ul::marker,.article-body ol::marker{color:var(--c-key);}
.article-body li::marker{color:var(--c-key);}
.article-body blockquote{
  border-left:3px solid var(--c-key);background:var(--c-panel);
  padding:20px;border-radius:0 var(--r-card) var(--r-card) 0;color:var(--c-text-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:12px;margin:1.4em auto;height:auto;}
.article-body figcaption,.article-body .caption{font-size:13px;color:var(--c-text-3);text-align:center;margin-top:.6em;}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:2em 0;}
.article-body table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:15px;overflow:hidden;border-radius:12px;}
.article-body th{background:var(--c-panel-2);color:var(--c-text);font-weight:700;text-align:left;}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:12px 14px;line-height:1.7;}
.article-body code{background:var(--c-panel-2);border:1px solid var(--c-line);border-radius:6px;padding:1px 6px;font-size:14px;color:var(--c-key);}
.article-body pre{background:var(--c-panel);border:1px solid var(--c-line);border-radius:12px;padding:18px;overflow-x:auto;font-size:14px;line-height:1.7;}
.article-foot{
  margin-top:34px;padding-top:20px;border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-text-3);
}
.empty-state{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-card);padding:40px 24px;text-align:center;
}
.empty-state .ico{width:36px;height:36px;border:1px solid var(--c-line-2);border-radius:50%;position:relative;}
.empty-state .ico::after{content:"";position:absolute;left:50%;top:50%;width:12px;height:1px;background:var(--c-text-3);transform:translate(-50%,-50%);}
.empty-state p{color:var(--c-text-2);font-size:15px;}
.empty-state span{color:var(--c-text-3);font-size:13px;}

/* ============ 相关推荐 ============ */
.section{padding:56px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px;}
.section-head h2{position:relative;padding-left:14px;}
.section-head h2::before{content:"";position:absolute;left:0;top:.24em;bottom:.24em;width:4px;border-radius:2px;background:var(--c-key);}
.rel-grid{display:grid;grid-template-columns:1fr;gap:16px;}
.rel-card{
  display:flex;flex-direction:column;background:var(--c-panel);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;
  transition:transform .18s var(--ease),border-color .18s var(--ease);
}
.rel-card:hover{transform:translateY(-2px);border-color:var(--c-key);}
.rel-card:active{transform:translateY(0);border-color:var(--c-key-deep);}
.rel-thumb{aspect-ratio:16/9;background:var(--c-panel-2);overflow:hidden;}
.rel-thumb img{width:100%;height:100%;object-fit:cover;}
.rel-body{padding:20px;display:flex;flex-direction:column;gap:10px;}
.rel-body h3{font-size:17px;font-weight:700;line-height:1.5;color:var(--c-text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rel-card:hover h3{color:var(--c-key);}
.rel-body p{font-size:14px;line-height:1.8;color:var(--c-text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rel-time{font-size:13px;color:var(--c-text-3);}

/* ============ 窄版 CTA ============ */
.cta-bar{
  display:flex;flex-direction:column;gap:16px;align-items:flex-start;justify-content:space-between;
  background:rgba(255,95,87,.06);border:1px solid rgba(255,95,87,.45);
  border-radius:var(--r-block);padding:20px 22px;min-height:96px;
}
.cta-bar h3{font-size:17px;}
.cta-bar p{font-size:14px;color:var(--c-text-2);margin-top:4px;}
@media (min-width:768px){
  .cta-bar{flex-direction:row;align-items:center;}
  .rel-grid{grid-template-columns:repeat(3,1fr);}
}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-bg);border-top:1px solid var(--c-line);padding:56px 0 0;margin-top:24px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
.footer-col h4{font-size:15px;font-weight:700;color:var(--c-text);margin-bottom:14px;letter-spacing:.02em;}
.footer-col p{font-size:14px;line-height:1.85;color:var(--c-text-2);}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col ul a{font-size:14px;color:var(--c-text-2);}
.footer-col ul a:hover{color:var(--c-key);}
.footer-key{
  display:inline-block;margin-top:16px;padding:4px 10px;border-radius:999px;font-size:12px;
  color:var(--c-key);background:rgba(34,211,182,.12);
}
.footer-bottom{
  margin-top:40px;padding:20px 0 28px;border-top:1px solid var(--c-line);
  display:flex;flex-direction:column;gap:8px;font-size:13px;color:var(--c-text-3);
}
.footer-bottom .dot{margin:0 8px;}
@media (min-width:768px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;}
  .footer-bottom{flex-direction:row;align-items:center;justify-content:space-between;}
}
@media (min-width:1024px){
  .section{padding:96px 0;}
  .article-main{padding:72px 0 88px;}
  .footer-grid{gap:40px;}
}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .32s var(--ease),transform .32s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}
@keyframes tickPulse{0%{transform:scale(1);}50%{transform:scale(1.06);}100%{transform:scale(1);}}
.tick-pulse{animation:tickPulse .6s ease-out;}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --c-bg:#0A0D14;
  --c-panel:#111726;
  --c-panel-2:#161D2E;
  --c-line:#1F2839;
  --c-line-2:#2B3448;
  --c-text:#EEF1F6;
  --c-text-2:#A8B2C4;
  --c-text-3:#6E7A90;
  --c-body:#C7CEDC;
  --c-key:#22D3B6;
  --c-key-deep:#17A38C;
  --c-hot:#FF5F57;
  --c-warn:#F0B429;
  --r-btn:10px;
  --r-card:16px;
  --r-block:20px;
  --shadow:0 10px 30px rgba(0,0,0,.35);
  --ease:180ms ease-out;
  --font:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;padding:0;
  background:var(--c-bg);
  color:var(--c-body);
  font-family:var(--font);
  font-size:16px;line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--c-text-2);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--c-key)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--c-key);outline-offset:2px;
}
h1,h2,h3,h4{margin:0;color:var(--c-text);font-weight:700;letter-spacing:-0.01em}
p{margin:0 0 1.2em}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
input,select,textarea{font-family:inherit}

/* 容器 */
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container-x{padding:0 32px}}
@media (min-width:1280px){.container-x{max-width:1280px}}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,13,20,.92);
  border-bottom:1px solid var(--c-line);
  transition:background .2s ease,border-color .2s ease;
}
.site-header.is-scrolled{background:rgba(10,13,20,.98);border-bottom-color:rgba(34,211,182,.42)}
.nav-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:26px;height:26px;flex:0 0 auto;display:inline-block;
  background:linear-gradient(140deg,var(--c-key),#0E7A68);
  clip-path:polygon(50% 0,60% 40%,100% 50%,60% 60%,50% 100%,40% 60%,0 50%,40% 40%);
  transition:transform .3s ease-out;
}
.brand:hover .brand-mark{transform:rotate(90deg)}
.brand-text{display:inline-flex;align-items:baseline;gap:6px;font-size:17px;color:var(--c-text);letter-spacing:.01em}
.brand-text b{font-weight:800}
.brand-text span{font-weight:400;font-size:14px;color:var(--c-text-2)}
.nav-links{display:none;align-items:center;gap:26px}
@media (min-width:1024px){.nav-links{display:flex}}
.nav-links a{position:relative;font-size:15px;color:var(--c-text-2);padding:6px 0}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--c-key);transition:width var(--ease);
}
.nav-links a:hover::after{width:100%}
.nav-links a.is-active{color:var(--c-key)}
.nav-links a.is-active::after{width:60%}
.nav-side{display:flex;align-items:center;gap:14px;margin-left:auto}
.status-badge{
  display:none;align-items:center;gap:6px;font-size:12.5px;line-height:1;
  color:var(--c-key);background:rgba(34,211,182,.12);
  border-radius:999px;padding:6px 10px;white-space:nowrap;
}
.status-badge i{width:6px;height:6px;border-radius:50%;background:var(--c-key);display:inline-block}
.nav-count{
  display:none;font-size:13px;color:var(--c-text-3);white-space:nowrap;
  font-variant-numeric:tabular-nums;
}
@media (min-width:1024px){.status-badge{display:inline-flex}}
@media (min-width:1180px){.nav-count{display:inline}}
.nav-side .btn{display:none}
@media (min-width:768px){.nav-side .btn{display:inline-flex}}

/* 按钮 */
a.btn,button.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;line-height:1;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:background-color var(--ease),border-color var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease);
  white-space:nowrap;
}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
a.btn-primary,button.btn-primary{background:var(--c-key);color:#07110F;border-color:var(--c-key)}
a.btn-primary:hover,button.btn-primary:hover{background:#3EE0C6;color:#07110F;transform:translateY(-1px);box-shadow:0 8px 20px rgba(0,0,0,.35)}
a.btn-primary:active,button.btn-primary:active{background:var(--c-key-deep);color:#07110F;transform:translateY(0);box-shadow:none}
a.btn-ghost,button.btn-ghost{background:transparent;color:var(--c-text);border-color:var(--c-line-2)}
a.btn-ghost:hover,button.btn-ghost:hover{border-color:var(--c-key);color:var(--c-key);transform:translateY(-1px)}
a.btn-ghost:active,button.btn-ghost:active{border-color:var(--c-key-deep);color:var(--c-key-deep);transform:translateY(0)}
.btn[disabled]{opacity:.4;cursor:not-allowed}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-key)}
.link-arrow .arr{transition:transform var(--ease)}
.link-arrow:hover .arr{transform:translateX(4px)}

/* 汉堡 */
.burger{
  width:40px;height:40px;display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  background:transparent;border:1px solid var(--c-line-2);border-radius:var(--r-btn);cursor:pointer;padding:0;
  transition:border-color var(--ease);
}
.burger:hover{border-color:var(--c-key)}
.burger span{display:block;width:18px;height:2px;background:var(--c-text);border-radius:2px;transition:transform .24s ease,opacity .24s ease}
.burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0}
.burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media (min-width:1024px){.burger{display:none}}

/* 抽屉 */
.drawer{
  position:fixed;inset:72px 0 0 0;z-index:55;
  background:var(--c-bg);border-top:1px solid var(--c-line);
  padding:28px 0 32px;
  transform:translateY(-8px);opacity:0;visibility:hidden;
  transition:opacity .24s ease,transform .24s ease,visibility .24s;
  overflow-y:auto;
}
.drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer nav{display:flex;flex-direction:column;gap:4px}
.drawer nav a{
  font-size:18px;font-weight:700;color:var(--c-text);
  padding:14px 0;border-bottom:1px solid var(--c-line);
}
.drawer nav a.is-active{color:var(--c-key)}
.drawer .drawer-foot{margin-top:24px;display:flex;flex-direction:column;gap:14px}
.drawer .drawer-count{font-size:13px;color:var(--c-text-3);font-variant-numeric:tabular-nums}

/* 内页 Banner */
.page-banner{position:relative;overflow:hidden;border-bottom:1px solid var(--c-line)}
.page-banner .bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat}
.page-banner .bg::after{content:"";position:absolute;inset:0;background:rgba(10,13,20,.82)}
.page-banner .stars{
  position:absolute;inset:0;opacity:.05;
  background-image:radial-gradient(#EEF1F6 1px,transparent 1px);
  background-size:28px 28px;
}
.banner-inner{position:relative;padding:48px 0 46px;min-height:240px;display:flex;flex-direction:column;justify-content:center}
.crumb{margin-bottom:18px}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3)}
.crumb li{display:inline-flex;align-items:center;gap:8px}
.crumb li+li::before{content:"/";color:var(--c-line-2)}
.crumb a{color:var(--c-text-3)}
.crumb a:hover{color:var(--c-key)}
.crumb .current{color:var(--c-text-2)}
.banner-inner h1{
  font-size:clamp(30px,5vw,54px);font-weight:800;line-height:1.15;letter-spacing:-0.02em;
  max-width:820px;
}
.banner-inner h1 em{font-style:normal;color:var(--c-key)}
.banner-lead{margin:18px 0 0;max-width:640px;font-size:17px;color:var(--c-text-2);line-height:1.85}
.banner-meta{margin-top:24px;display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;line-height:1;padding:6px 10px;border-radius:999px;
  background:rgba(34,211,182,.12);color:var(--c-key);
}
.tag-hot{background:rgba(255,95,87,.12);color:var(--c-hot)}
.tag-line{background:transparent;border:1px solid var(--c-line-2);color:var(--c-text-2)}

/* 板块 */
.section{padding:56px 0}
@media (min-width:768px){.section{padding:72px 0}}
@media (min-width:1024px){.section{padding:96px 0}}
.section-head{max-width:760px;margin-bottom:32px}
.section-head h2{
  font-size:clamp(24px,3.2vw,36px);font-weight:700;line-height:1.25;letter-spacing:-0.01em;
  padding-left:14px;border-left:4px solid var(--c-key);
}
.section-head p{margin:14px 0 0;color:var(--c-text-2);font-size:15.5px}

/* 芯片 */
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
a.chip,button.chip{
  display:inline-flex;align-items:center;gap:8px;
  height:38px;padding:0 16px;border-radius:999px;
  border:1px solid var(--c-line-2);background:transparent;
  color:var(--c-text-2);font-size:14px;font-weight:600;cursor:pointer;
  transition:border-color var(--ease),color var(--ease),background-color var(--ease);
}
a.chip:hover,button.chip:hover{border-color:var(--c-key);color:var(--c-key)}
button.chip.is-on{background:rgba(34,211,182,.12);border-color:var(--c-key);color:var(--c-key)}

/* 入口卡（两列） */
.entry-grid{display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width:768px){.entry-grid{grid-template-columns:repeat(2,1fr);gap:20px}}
.entry-card{
  display:flex;align-items:flex-start;gap:16px;
  background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px;transition:border-color var(--ease),transform var(--ease),background-color var(--ease);
}
.entry-card:hover{border-color:var(--c-key);transform:translateY(-2px);background:var(--c-panel-2)}
.entry-card:active{transform:translateY(0);border-color:var(--c-key-deep)}
.entry-icon{
  flex:0 0 auto;width:42px;height:42px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(34,211,182,.1);border:1px solid rgba(34,211,182,.22);
  color:var(--c-key);
}
.entry-icon svg{width:20px;height:20px}
.entry-body{flex:1 1 auto;min-width:0}
.entry-body h3{font-size:17px;font-weight:700;line-height:1.5}
.entry-body p{margin:8px 0 0;font-size:14.5px;color:var(--c-text-2);line-height:1.8}
.entry-meta{margin-top:12px;display:flex;flex-wrap:wrap;gap:8px}
.entry-arrow{
  flex:0 0 auto;align-self:center;color:var(--c-text-3);font-size:18px;line-height:1;
  transition:transform var(--ease),color var(--ease);
}
.entry-card:hover .entry-arrow{transform:translateX(4px);color:var(--c-key)}

/* 状态条 */
.status-strip{
  display:grid;grid-template-columns:1fr;gap:20px;align-items:center;
  background:rgba(255,95,87,.06);
  border:1px solid rgba(255,95,87,.45);border-radius:var(--r-block);
  padding:24px;
}
@media (min-width:900px){.status-strip{grid-template-columns:auto 1fr auto;gap:36px;padding:24px 32px}}
.count-block{display:flex;align-items:flex-end;gap:10px}
.count-unit{display:flex;flex-direction:column;align-items:center;gap:4px}
.count-unit b{
  font-size:clamp(32px,4vw,40px);font-weight:800;line-height:1;color:var(--c-text);
  font-variant-numeric:tabular-nums;letter-spacing:-0.02em;
}
.count-unit span{font-size:12px;color:var(--c-text-3)}
.count-sep{font-size:26px;font-weight:800;color:var(--c-hot);line-height:1;padding-bottom:10px}
.count-unit b.is-pulse{animation:pulse .9s ease-out}
@keyframes pulse{0%{transform:scale(1)}45%{transform:scale(1.06)}100%{transform:scale(1)}}
.strip-copy h3{font-size:19px;font-weight:700}
.strip-copy p{margin:8px 0 0;font-size:14.5px;color:var(--c-text-2)}
.strip-badges{margin-top:12px;display:flex;flex-wrap:wrap;gap:8px}

/* 步骤 */
.steps{display:grid;grid-template-columns:1fr;gap:0;border-left:2px solid var(--c-line);margin-left:8px}
.step{position:relative;padding:0 0 32px 26px}
.step:last-child{padding-bottom:0}
.step::before{
  content:"";position:absolute;left:-7px;top:8px;width:12px;height:12px;border-radius:50%;
  background:var(--c-key);box-shadow:0 0 0 4px rgba(34,211,182,.12);
}
.step-no{font-size:13px;color:var(--c-text-3);font-variant-numeric:tabular-nums;letter-spacing:.08em}
.step h3{margin-top:6px;font-size:18px;font-weight:700}
.step p{margin:8px 0 0;font-size:15px;color:var(--c-text-2);line-height:1.85}
.step ul{margin-top:10px;display:grid;gap:8px}
.step ul li{position:relative;padding-left:16px;font-size:14.5px;color:var(--c-text-2)}
.step ul li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:2px;background:var(--c-key)}

/* 速查 + 图文 */
.split{display:grid;grid-template-columns:1fr;gap:28px}
@media (min-width:960px){.split{grid-template-columns:5fr 7fr;gap:40px;align-items:start}}
.figure-card{
  background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-block);
  overflow:hidden;
}
.figure-card img{width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--c-panel-2)}
.figure-card figcaption{padding:16px 20px;font-size:13px;color:var(--c-text-3);line-height:1.7}
.check-list{display:grid;gap:14px}
.check-item{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:18px 20px;transition:border-color var(--ease),transform var(--ease);
}
.check-item:hover{border-color:var(--c-key);transform:translateY(-2px)}
.check-dot{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(34,211,182,.1);color:var(--c-key);font-size:13px;font-weight:800;
  font-variant-numeric:tabular-nums;
}
.check-item h3{font-size:16px;font-weight:700}
.check-item p{margin:6px 0 0;font-size:14.5px;color:var(--c-text-2);line-height:1.8}

/* 度量条 */
.metric-row{display:grid;grid-template-columns:1fr;gap:16px;margin-top:28px}
@media (min-width:768px){.metric-row{grid-template-columns:repeat(3,1fr)}}
.metric{
  background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px;
}
.metric b{display:block;font-size:28px;font-weight:800;color:var(--c-key);font-variant-numeric:tabular-nums;letter-spacing:-0.02em}
.metric span{display:block;margin-top:8px;font-size:14px;color:var(--c-text-2)}
.bar{height:6px;border-radius:999px;background:var(--c-panel-2);margin-top:14px;overflow:hidden}
.bar i{display:block;height:100%;border-radius:999px;background:var(--c-key)}

/* FAQ */
.faq{border-top:1px solid var(--c-line)}
.faq-item{border-bottom:1px solid var(--c-line);transition:background-color var(--ease)}
.faq-item.is-open{background:rgba(17,23,38,.6)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;padding:20px 16px 20px 0;
  text-align:left;cursor:pointer;color:var(--c-text);
  font-size:17px;font-weight:600;line-height:1.6;
  transition:color var(--ease);
}
.faq-q:hover{color:var(--c-key)}
.faq-q .faq-sign{
  flex:0 0 auto;width:22px;height:22px;position:relative;
  transition:transform .2s ease-out;
}
.faq-q .faq-sign::before,.faq-q .faq-sign::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-key);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-q .faq-sign::before{width:14px;height:2px}
.faq-q .faq-sign::after{width:2px;height:14px;transition:opacity .2s ease}
.faq-item.is-open .faq-sign{transform:rotate(180deg)}
.faq-item.is-open .faq-sign::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a p{margin:0;padding:0 40px 22px 16px;font-size:15px;line-height:1.85;color:var(--c-text-2)}
.faq-item.is-open .faq-a{max-height:420px}
.faq-item.is-open .faq-q{box-shadow:inset 2px 0 0 var(--c-key);padding-left:16px}

/* 咨询 */
.contact-wrap{display:grid;grid-template-columns:1fr;gap:28px}
@media (min-width:960px){.contact-wrap{grid-template-columns:5fr 7fr;gap:40px}}
.contact-points{display:grid;gap:14px;margin-top:20px}
.contact-points li{display:flex;gap:12px;font-size:15px;color:var(--c-text-2)}
.contact-points li i{
  flex:0 0 auto;width:8px;height:8px;border-radius:2px;background:var(--c-key);margin-top:12px;
}
form.card-form{
  background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-block);
  padding:24px;display:grid;gap:16px;
}
@media (min-width:768px){form.card-form{padding:28px}}
.field{display:grid;gap:8px}
.field label{font-size:14px;color:var(--c-text-2);font-weight:600}
.field input,.field select,.field textarea{
  width:100%;background:#0F1420;border:1px solid var(--c-line);border-radius:var(--r-btn);
  color:var(--c-text);font-size:15px;padding:13px 14px;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field textarea{min-height:112px;resize:vertical;line-height:1.8}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-key);box-shadow:0 0 0 3px rgba(34,211,182,.15);
}
.check-line{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--c-text-2);line-height:1.7}
.check-line input{width:16px;height:16px;margin-top:5px;accent-color:var(--c-key)}
.form-note{font-size:13px;color:var(--c-text-3)}
.form-msg{font-size:13.5px;color:var(--c-key);display:none}
.form-msg.is-show{display:block}

/* 窄版 CTA */
.cta-narrow{
  display:flex;flex-direction:column;gap:18px;align-items:flex-start;
  background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-block);
  padding:22px 24px;
}
@media (min-width:820px){.cta-narrow{flex-direction:row;align-items:center;justify-content:space-between;padding:22px 32px}}
.cta-narrow h3{font-size:18px;font-weight:700}
.cta-narrow p{margin:6px 0 0;font-size:14.5px;color:var(--c-text-2)}
.back-line{margin-top:28px;display:flex;flex-wrap:wrap;gap:12px}

/* 页脚 */
.site-footer{background:var(--c-bg);border-top:1px solid var(--c-line);padding:56px 0 0;margin-top:24px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}}
.footer-col p{margin:16px 0 0;font-size:14px;color:var(--c-text-2);line-height:1.85;max-width:340px}
.footer-col h4{font-size:15px;font-weight:700;color:var(--c-text);margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col ul a{font-size:14px;color:var(--c-text-2)}
.footer-col ul a:hover{color:var(--c-key)}
.footer-key{
  display:inline-block;margin-top:16px;font-size:12.5px;color:var(--c-key);
  background:rgba(34,211,182,.12);border-radius:999px;padding:5px 12px;
}
.footer-bottom{
  margin-top:44px;border-top:1px solid var(--c-line);padding:20px 0 28px;
  display:flex;flex-wrap:wrap;gap:10px 20px;justify-content:space-between;
  font-size:13px;color:var(--c-text-3);
}
.footer-bottom .dot{padding:0 6px;color:var(--c-line-2)}

/* 进场动画 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .32s ease-out,transform .32s ease-out}
.reveal.is-in{opacity:1;transform:translateY(0)}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --c-bg:#0A0D14;
  --c-panel:#111726;
  --c-panel-2:#161D2E;
  --c-line:#1F2839;
  --c-line-2:#2B3448;
  --c-text:#EEF1F6;
  --c-text-2:#A8B2C4;
  --c-text-3:#6E7A90;
  --c-body:#C7CEDC;
  --c-key:#22D3B6;
  --c-key-deep:#17A38C;
  --c-hot:#FF5F57;
  --c-warn:#F0B429;
  --r-btn:10px;
  --r-card:16px;
  --r-block:20px;
  --sh:0 10px 30px rgba(0,0,0,.35);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-body);
  font-family:'PingFang SC','HarmonyOS Sans SC','Noto Sans SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
body.is-locked{overflow:hidden}
img{max-width:100%;display:block}
a{color:var(--c-text-2);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--c-key)}
h1,h2,h3,h4{margin:0;color:var(--c-text);letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--c-key);outline-offset:2px}
.container-x{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}
@media (min-width:768px){.container-x{padding:0 32px}}
@media (min-width:1440px){.container-x{max-width:1280px}}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,13,20,.92);
  border-bottom:1px solid var(--c-line);
  transition:background .2s ease-out,border-color .2s ease-out;
}
.site-header.is-scrolled{background:rgba(10,13,20,.98);border-bottom-color:rgba(34,211,182,.55)}
.nav-inner{display:flex;align-items:center;gap:24px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-text)}
.brand:hover{color:var(--c-text)}
.brand-mark{
  width:22px;height:22px;flex:0 0 auto;
  background:linear-gradient(135deg,#22D3B6 0%,#8DF3E2 100%);
  clip-path:polygon(50% 0%,62% 38%,100% 50%,62% 62%,50% 100%,38% 62%,0% 50%,38% 38%);
}
.brand-text{display:inline-flex;align-items:baseline;gap:5px;white-space:nowrap}
.brand-text b{font-size:17px;font-weight:800;letter-spacing:.01em;color:var(--c-text)}
.brand-text span{font-size:14px;font-weight:400;color:var(--c-text-3)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{position:relative;padding:10px 14px;font-size:15px;color:var(--c-text-2);border-radius:8px}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:2px;width:0;height:2px;border-radius:2px;
  background:var(--c-key);transform:translateX(-50%);transition:width .2s ease-out;
}
.nav-links a:hover{color:var(--c-key)}
.nav-links a:hover::after{width:60%}
.nav-links a.is-active{color:var(--c-key);font-weight:600}
.nav-links a.is-active::after{width:60%}
.nav-side{display:flex;align-items:center;gap:14px}
.status-badge{
  display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;
  font-size:12px;color:var(--c-key);background:rgba(34,211,182,.12);
  border:1px solid rgba(34,211,182,.25);white-space:nowrap;
}
.status-badge i{width:6px;height:6px;border-radius:50%;background:var(--c-key);box-shadow:0 0 0 3px rgba(34,211,182,.15)}
.nav-count{font-size:12px;color:var(--c-text-3);font-variant-numeric:tabular-nums;white-space:nowrap}
.burger{
  display:none;width:40px;height:40px;flex-direction:column;align-items:center;justify-content:center;
  border:1px solid var(--c-line-2);border-radius:var(--r-btn);background:transparent;cursor:pointer;gap:4px;
}
.burger span{display:block;width:18px;height:2px;background:var(--c-text);border-radius:2px;transition:transform .2s ease-out,opacity .2s ease-out}
.burger:hover{border-color:var(--c-key)}
@media (max-width:1023px){
  .nav-links{display:none}
  .status-badge,.nav-count{display:none}
  .burger{display:flex;margin-left:auto}
  .nav-side{margin-left:auto}
  .nav-inner{min-height:60px}
}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;inset:0;z-index:80;background:var(--c-bg);
  display:flex;flex-direction:column;padding:20px;
  transform:translateX(100%);opacity:0;visibility:hidden;
  transition:transform .24s ease-out,opacity .24s ease-out,visibility .24s;
}
.mobile-drawer.is-open{transform:translateX(0);opacity:1;visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:20px;border-bottom:1px solid var(--c-line)}
.drawer-close{width:40px;height:40px;border:1px solid var(--c-line-2);border-radius:var(--r-btn);background:transparent;color:var(--c-text);font-size:20px;line-height:1;cursor:pointer}
.drawer-close:hover{border-color:var(--c-key);color:var(--c-key)}
.drawer-nav{display:flex;flex-direction:column;padding:16px 0;flex:1}
.drawer-nav a{font-size:18px;font-weight:700;color:var(--c-text);padding:14px 0;border-bottom:1px solid var(--c-line)}
.drawer-nav a.is-active{color:var(--c-key)}
.drawer-foot{border-top:1px solid var(--c-line);padding-top:20px;display:flex;flex-direction:column;gap:14px}
.drawer-foot .nav-count{font-size:13px}

/* ============ 按钮 / 标签 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:700;cursor:pointer;white-space:nowrap;
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn-primary{background:var(--c-key);color:#07110F}
.btn-primary:hover{background:#3EE6C9;color:#07110F;transform:translateY(-1px);box-shadow:var(--sh)}
.btn-primary:active{background:var(--c-key-deep);transform:translateY(0)}
.btn-ghost{border-color:var(--c-line-2);color:var(--c-text-2)}
.btn-ghost:hover{border-color:var(--c-key);color:var(--c-key)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn-lg{height:48px;padding:0 26px}
.btn[disabled]{opacity:.4;cursor:not-allowed}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--c-text-2);position:relative}
.link-arrow::after{content:"";position:absolute;left:0;bottom:-3px;width:0;height:2px;background:var(--c-key);transition:width .2s ease-out}
.link-arrow:hover{color:var(--c-key)}
.link-arrow:hover::after{width:100%}
.link-arrow .arr{transition:transform .18s ease-out}
.link-arrow:hover .arr{transform:translateX(4px)}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;
  font-size:12px;font-weight:600;white-space:nowrap;
}
.tag-live{color:var(--c-key);background:rgba(34,211,182,.12);border:1px solid rgba(34,211,182,.28)}
.tag-live::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-key)}
.tag-soon{color:var(--c-hot);background:rgba(255,95,87,.12);border:1px solid rgba(255,95,87,.3)}
.tag-scheduled{color:var(--c-text-2);background:transparent;border:1px solid var(--c-line-2)}
.tag-done{color:var(--c-text-3);background:transparent;border:1px solid var(--c-line)}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;
  border:1px solid var(--c-line-2);background:transparent;color:var(--c-text-2);
  font-size:14px;cursor:pointer;transition:border-color .18s,color .18s,background .18s;
}
.chip:hover{border-color:var(--c-key);color:var(--c-key)}
.chip.is-on{border-color:var(--c-key);color:var(--c-key);background:rgba(34,211,182,.1)}

/* ============ 板块 ============ */
.section{padding:56px 0}
.section-sm{padding:40px 0}
@media (min-width:768px){.section{padding:72px 0}.section-sm{padding:52px 0}}
@media (min-width:1024px){.section{padding:96px 0}.section-sm{padding:64px 0}}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:32px}
.sec-title{position:relative;padding-left:16px;font-size:clamp(24px,3.2vw,36px);font-weight:700;line-height:1.25}
.sec-title::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:2px;background:var(--c-key)}
.sec-sub{margin-top:12px;font-size:14px;color:var(--c-text-3);max-width:620px}
.group-title{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--c-text-2);margin:32px 0 20px}
.group-title::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-key)}
.group-title:first-of-type{margin-top:0}

/* ============ Banner ============ */
.page-banner{
  position:relative;min-height:260px;display:flex;align-items:flex-end;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--c-line);
  padding:32px 0 36px;
}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,13,20,.88) 0%,rgba(10,13,20,.80) 100%);
}
.page-banner::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(238,241,246,.06) 1px,transparent 1px);
  background-size:28px 28px;
}
.banner-inner{position:relative;z-index:1;width:100%}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;font-size:13px;color:var(--c-text-3);margin-bottom:22px}
.crumbs li{display:inline-flex;align-items:center;gap:8px}
.crumbs a{color:var(--c-text-3)}
.crumbs a:hover{color:var(--c-key)}
.crumbs li+li::before{content:"/";color:var(--c-line-2)}
.crumbs .now{color:var(--c-text-2)}
.banner-title{font-size:clamp(30px,5vw,54px);font-weight:800;line-height:1.15;letter-spacing:-.02em}
.banner-title .hl{color:var(--c-key)}
.banner-lead{margin-top:16px;font-size:16px;line-height:1.85;color:var(--c-text-2);max-width:660px}
.banner-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.banner-chips span{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
  font-size:13px;color:var(--c-text-2);border:1px solid var(--c-line-2);background:rgba(17,23,38,.65);
  font-variant-numeric:tabular-nums;
}
.banner-chips span b{color:var(--c-text);font-weight:700}

/* ============ 工具栏 ============ */
.toolbar{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  padding-bottom:24px;border-bottom:1px solid var(--c-line);
}
.chip-row{display:flex;flex-wrap:wrap;gap:10px}
.toolbar-note{font-size:13px;color:var(--c-text-3)}
.state-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));margin-top:32px}
.state-cell{padding:4px 20px;border-left:1px solid var(--c-line);display:flex;flex-direction:column;gap:6px}
.state-cell:first-child{border-left:none;padding-left:0}
.state-head{display:flex;align-items:center;gap:8px}
.state-head b{font-size:15px;font-weight:700;color:var(--c-text)}
.state-cell p{font-size:14px;line-height:1.8;color:var(--c-text-3)}
.dot{width:8px;height:8px;border-radius:50%;flex:0 0 auto}
.dot-live{background:var(--c-key);box-shadow:0 0 0 4px rgba(34,211,182,.14)}
.dot-soon{background:var(--c-hot)}
.dot-scheduled{background:var(--c-line-2)}
.dot-done{background:var(--c-text-3)}
@media (max-width:1023px){
  .state-strip{grid-template-columns:repeat(2,minmax(0,1fr));gap:0}
  .state-cell{padding:16px 20px;border-top:1px solid var(--c-line)}
  .state-cell:nth-child(odd){border-left:none;padding-left:0}
  .state-cell:nth-child(1),.state-cell:nth-child(2){border-top:none}
}
@media (max-width:639px){
  .state-strip{grid-template-columns:1fr}
  .state-cell{padding:16px 0;border-left:none;border-top:1px solid var(--c-line)}
  .state-cell:first-child{border-top:none}
}

/* ============ 时间轴 ============ */
.tl{list-style:none;margin:0;padding:0}
.tl-item{display:grid;grid-template-columns:136px 28px minmax(0,1fr);align-items:start;padding-bottom:28px}
.tl-date{grid-column:1;grid-row:1;text-align:right;padding:2px 16px 0 0;font-size:13px;color:var(--c-text-3);font-variant-numeric:tabular-nums}
.tl-date b{display:block;font-size:15px;font-weight:700;color:var(--c-text);letter-spacing:.01em}
.tl-rail{grid-column:2;grid-row:1/2;position:relative;display:flex;justify-content:center;align-self:stretch}
.tl-rail::before{content:"";position:absolute;top:8px;bottom:-28px;width:1px;background:var(--c-line)}
.tl-item:last-child .tl-rail::before{display:none}
.tl-dot{width:8px;height:8px;border-radius:50%;margin-top:6px;position:relative;z-index:1}
.tl-dot.is-live{background:var(--c-key);box-shadow:0 0 0 4px rgba(34,211,182,.14)}
.tl-dot.is-soon{background:var(--c-hot)}
.tl-dot.is-scheduled{background:var(--c-line-2)}
.tl-dot.is-done{background:var(--c-text-3)}
.tl-body{
  grid-column:3;grid-row:1;
  background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:20px 22px;transition:border-color .18s ease-out,transform .18s ease-out;
}
.tl-body:hover{border-color:var(--c-key);transform:translateY(-2px)}
.tl-body:active{border-color:var(--c-key-deep);transform:translateY(0)}
.tl-top{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:10px}
.tl-meta{font-size:13px;color:var(--c-text-3)}
.tl-title{font-size:17px;font-weight:600;line-height:1.5}
.tl-desc{margin-top:8px;font-size:15px;line-height:1.85;color:var(--c-text-2)}
.tl-foot{margin-top:14px;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.tl-place{font-size:13px;color:var(--c-text-3);font-variant-numeric:tabular-nums}
@media (max-width:767px){
  .tl-item{grid-template-columns:18px minmax(0,1fr);padding-bottom:20px}
  .tl-date{grid-column:2;grid-row:1;text-align:left;padding:0 0 8px;display:flex;align-items:baseline;gap:8px}
  .tl-date b{display:inline;font-size:14px}
  .tl-rail{grid-column:1;grid-row:1/3}
  .tl-rail::before{bottom:-20px}
  .tl-body{grid-column:2;grid-row:2;padding:18px}
}

/* ============ 图文区块 ============ */
.split{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:40px;align-items:center}
.split-media{position:relative;border-radius:var(--r-block);overflow:hidden;border:1px solid var(--c-line);aspect-ratio:4/3;background:var(--c-panel-2)}
.split-media img{width:100%;height:100%;object-fit:cover}
.split-media .cap{position:absolute;left:16px;bottom:14px;font-size:13px;color:var(--c-text-2);background:rgba(10,13,20,.78);border:1px solid var(--c-line-2);padding:4px 10px;border-radius:999px}
.checklist{list-style:none;margin-top:24px;display:grid;gap:14px}
.checklist li{position:relative;padding-left:18px;font-size:15px;line-height:1.85;color:var(--c-text-2)}
.checklist li::before{content:"";position:absolute;left:0;top:.68em;width:4px;height:4px;background:var(--c-key);border-radius:1px}
.checklist strong{color:var(--c-text);font-weight:700}
.split-lead{font-size:15px;line-height:1.9;color:var(--c-text-2);margin-top:16px;max-width:560px}
@media (max-width:1023px){
  .split{grid-template-columns:1fr;gap:28px}
  .split-media{aspect-ratio:16/9}
}

/* ============ FAQ ============ */
.faq{padding-left:16px;border-top:1px solid var(--c-line)}
.faq-item{border-bottom:1px solid var(--c-line);position:relative}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:18px 44px 18px 0;font-size:17px;font-weight:600;color:var(--c-text);
  transition:color .18s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:-16px;top:18px;bottom:18px;width:2px;background:var(--c-key);
  transform:scaleY(0);transform-origin:top;transition:transform .2s ease-out;
}
.faq-item[open] summary::before{transform:scaleY(1)}
.faq-item summary::after{
  content:"";position:absolute;right:10px;top:26px;width:9px;height:9px;
  border-right:2px solid var(--c-text-3);border-bottom:2px solid var(--c-text-3);
  transform:rotate(45deg);transition:transform .2s ease-out,border-color .18s;
}
.faq-item[open] summary::after{transform:rotate(-135deg);border-color:var(--c-key)}
.faq-item summary:hover{color:var(--c-key)}
.faq-item[open] summary{color:var(--c-key)}
.faq-body{padding:0 44px 20px 0;font-size:15px;line-height:1.85;color:var(--c-text-2)}

/* ============ CTA 窄条 ============ */
.cta-bar{
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  min-height:96px;padding:22px 28px;border-radius:var(--r-block);
  background:var(--c-panel);border:1px solid var(--c-line);
  position:relative;overflow:hidden;
}
.cta-bar::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(238,241,246,.06) 1px,transparent 1px);
  background-size:28px 28px;
}
.cta-bar > *{position:relative;z-index:1}
.cta-title{font-size:19px;font-weight:700}
.cta-text{margin-top:6px;font-size:14px;line-height:1.8;color:var(--c-text-3);max-width:620px}
@media (max-width:639px){
  .cta-bar{padding:22px 20px;flex-direction:column;align-items:flex-start}
  .cta-bar .btn{width:100%}
}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-bg);border-top:1px solid var(--c-line);padding:64px 0 0;margin-top:24px;position:relative}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px}
.footer-col ul{list-style:none;display:grid;gap:10px}
.footer-col ul a{font-size:14px;color:var(--c-text-2)}
.footer-col ul a:hover{color:var(--c-key)}
.footer-col p{margin-top:16px;font-size:14px;line-height:1.85;color:var(--c-text-3)}
.footer-key{
  display:inline-block;margin-top:16px;padding:4px 10px;border-radius:999px;font-size:12px;
  color:var(--c-key);background:rgba(34,211,182,.12);border:1px solid rgba(34,211,182,.22);
}
.footer-bottom{
  margin-top:48px;border-top:1px solid var(--c-line);padding:20px 0 28px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--c-text-3);
}
.footer-bottom .dot{margin:0 6px}
@media (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px 24px}
}
@media (max-width:639px){
  .footer-grid{grid-template-columns:1fr}
  .site-footer{padding-top:48px}
}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .32s ease-out,transform .32s ease-out}
.reveal.is-in{opacity:1;transform:translateY(0)}
@keyframes tickPulse{0%{transform:scale(1)}50%{transform:scale(1.06)}100%{transform:scale(1)}}
.tick{display:inline-block;animation:tickPulse 1s ease-out infinite}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .tick{animation:none}
  *{transition:none!important;animation:none!important}
}

/* roulang page: category3 */
:root{
  --c-bg:#0A0D14;
  --c-panel:#111726;
  --c-panel-2:#161D2E;
  --c-panel-3:#0F1420;
  --c-line:#1F2839;
  --c-line-hi:#2B3448;
  --c-text:#EEF1F6;
  --c-text-2:#A8B2C4;
  --c-text-3:#6E7A90;
  --c-body:#C7CEDC;
  --c-key:#22D3B6;
  --c-key-deep:#17A38C;
  --c-hot:#FF5F57;
  --c-warn:#F0B429;
  --r-btn:10px;
  --r-card:16px;
  --r-block:20px;
  --sh:0 10px 30px rgba(0,0,0,.35);
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box;}

html{scroll-behavior:smooth;}

html body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-body);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}

body img{max-width:100%;display:block;}
body a{color:var(--c-text-2);text-decoration:none;transition:color .18s ease-out;}
body a:hover{color:var(--c-key);}
body a:active{color:var(--c-key-deep);}
body button,body input,body select,body textarea{font:inherit;color:inherit;}
body ul,body ol{margin:0;padding:0;}
body figure{margin:0;}

:focus-visible{outline:2px solid var(--c-key);outline-offset:2px;border-radius:4px;}

h1,h2,h3,h4{color:var(--c-text);margin:0;}

.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;}

.container-x{width:100%;max-width:var(--container);margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:1280px){.container-x{max-width:1280px;}}
@media (min-width:768px){.container-x{padding-left:32px;padding-right:32px;}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background-color .18s ease-out,border-color .18s ease-out,color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn.btn-block{width:100%;}
.btn.btn-primary{background:var(--c-key);color:#07110F;}
.btn.btn-primary:hover{background:#2FF0CE;color:#07110F;transform:translateY(-1px);box-shadow:0 8px 20px rgba(34,211,182,.18);}
.btn.btn-primary:active{background:var(--c-key-deep);color:#07110F;transform:translateY(0);box-shadow:none;}
.btn.btn-ghost{border-color:var(--c-line-hi);background:transparent;color:var(--c-text);}
.btn.btn-ghost:hover{border-color:var(--c-key);color:var(--c-key);}
.btn.btn-ghost:active{border-color:var(--c-key-deep);color:var(--c-key-deep);}
.btn.btn-hot{background:rgba(255,95,87,.10);border-color:rgba(255,95,87,.45);color:#FF8A84;}
.btn.btn-hot:hover{background:rgba(255,95,87,.18);border-color:var(--c-hot);color:#FFB0AB;}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}

.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-text-2);position:relative;}
.link-arrow::after{content:"";position:absolute;left:0;bottom:-3px;height:2px;width:0;background:var(--c-key);transition:width .2s ease-out;}
.link-arrow:hover{color:var(--c-key);}
.link-arrow:hover::after{width:100%;}
.link-arrow .arr{transition:transform .18s ease-out;}
.link-arrow:hover .arr{transform:translateX(4px);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,13,20,.92);
  border-bottom:1px solid var(--c-line);
  transition:background-color .2s ease-out,border-color .2s ease-out;
}
.site-header.is-scrolled{background:rgba(10,13,20,.99);border-bottom-color:rgba(34,211,182,.45);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px;}
@media (max-width:1023px){.nav-inner{height:60px;}}

.brand{display:flex;align-items:center;gap:10px;color:var(--c-text);flex:0 0 auto;}
.brand:hover{color:var(--c-text);}
.brand-mark{
  width:22px;height:22px;flex:0 0 auto;display:inline-block;
  background:linear-gradient(180deg,#3AF2D2 0%,#17A38C 100%);
  clip-path:polygon(50% 0,58% 42%,100% 50%,58% 58%,50% 100%,42% 58%,0 50%,42% 42%);
}
.brand-text{display:inline-flex;align-items:baseline;gap:3px;font-size:17px;line-height:1;}
.brand-text b{font-weight:800;letter-spacing:.01em;color:var(--c-text);}
.brand-text span{font-weight:400;font-size:14px;color:var(--c-text-2);}

.nav-links{display:none;align-items:center;gap:26px;}
@media (min-width:1024px){.nav-links{display:flex;}}
.nav-links a{position:relative;padding:6px 0;font-size:15px;font-weight:500;color:var(--c-text-2);}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--c-key);transition:width .2s ease-out;}
.nav-links a:hover{color:var(--c-key);}
.nav-links a:hover::after{width:100%;}
.nav-links a.is-active{color:var(--c-key);font-weight:700;}
.nav-links a.is-active::after{width:60%;}

.nav-side{display:flex;align-items:center;gap:12px;}
.status-badge{
  display:none;align-items:center;gap:6px;
  padding:4px 10px;border-radius:999px;font-size:12.5px;font-weight:600;
  color:var(--c-key);background:rgba(34,211,182,.12);border:1px solid rgba(34,211,182,.28);
}
.status-badge i{width:6px;height:6px;border-radius:50%;background:var(--c-key);display:inline-block;}
@media (min-width:1024px){.status-badge{display:inline-flex;}}
.nav-count{display:none;font-size:13px;color:var(--c-text-3);font-variant-numeric:tabular-nums;letter-spacing:.02em;}
@media (min-width:1280px){.nav-count{display:inline;}}
@media (max-width:1023px){.nav-side .btn{display:none;}}

.burger{
  width:40px;height:40px;display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  background:transparent;border:1px solid var(--c-line-hi);border-radius:10px;cursor:pointer;
  transition:border-color .18s ease-out;
}
.burger:hover{border-color:var(--c-key);}
.burger span{width:16px;height:2px;background:var(--c-text-2);border-radius:2px;transition:background-color .18s;}
.burger:hover span{background:var(--c-key);}
@media (min-width:1024px){.burger{display:none;}}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;background:var(--c-bg);
  transform:translateX(100%);transition:transform .24s ease-out;
  display:flex;flex-direction:column;padding:20px;
  visibility:hidden;
}
.drawer.is-open{transform:translateX(0);visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:18px;border-bottom:1px solid var(--c-line);}
.drawer-close{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line-hi);
  background:transparent;color:var(--c-text-2);font-size:20px;line-height:1;cursor:pointer;
}
.drawer-close:hover{border-color:var(--c-key);color:var(--c-key);}
.drawer-links{display:flex;flex-direction:column;padding-top:10px;flex:1 1 auto;overflow-y:auto;}
.drawer-links a{
  font-size:18px;font-weight:700;color:var(--c-text-2);
  padding:16px 4px;border-bottom:1px solid var(--c-line);
}
.drawer-links a:hover,.drawer-links a.is-active{color:var(--c-key);}
.drawer-foot{display:flex;flex-direction:column;gap:12px;padding-top:18px;border-top:1px solid var(--c-line);}
.drawer-foot .nav-count{display:block;text-align:center;font-size:13px;color:var(--c-text-3);font-variant-numeric:tabular-nums;}

/* ---------- 版块与标题 ---------- */
.section{padding:56px 0;}
@media (min-width:768px){.section{padding:72px 0;}}
@media (min-width:1024px){.section{padding:96px 0;}}
.section.tight{padding-top:0;}
.section.alt{background:var(--c-panel-3);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}

.sec-head{margin-bottom:28px;max-width:820px;}
@media (min-width:1024px){.sec-head{margin-bottom:40px;}}
.h2{
  position:relative;padding-left:14px;
  font-size:clamp(24px,3.2vw,34px);font-weight:700;line-height:1.25;letter-spacing:-.01em;
}
.h2::before{content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:2px;background:var(--c-key);}
.sec-sub{margin:14px 0 0;font-size:15px;line-height:1.85;color:var(--c-text-2);}
.sec-sub.tight-top{margin-top:8px;}

.eyebrow{
  display:inline-flex;align-items:center;gap:6px;margin-bottom:14px;
  padding:4px 10px;border-radius:999px;font-size:12.5px;font-weight:600;letter-spacing:.04em;
  color:var(--c-key);background:rgba(34,211,182,.12);border:1px solid rgba(34,211,182,.26);
}

/* ---------- Hero / Banner ---------- */
.page-banner{position:relative;overflow:hidden;border-bottom:1px solid var(--c-line);min-height:240px;}
.page-banner .bn-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.page-banner .bn-mask{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,13,20,.80) 0%,rgba(10,13,20,.86) 100%);
}
.star-field{
  position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(238,241,246,.06) 1px,transparent 1px);
  background-size:28px 28px;
}
.bn-inner{position:relative;padding:44px 0 40px;}
@media (min-width:768px){.bn-inner{padding:56px 0 52px;}}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;font-size:13px;color:var(--c-text-3);margin-bottom:18px;}
.crumbs a{color:var(--c-text-3);}
.crumbs a:hover{color:var(--c-key);}
.crumbs .sep{color:var(--c-line-hi);}
.crumbs .now{color:var(--c-text-2);}
.banner-h1{
  font-size:clamp(28px,4.6vw,46px);font-weight:800;line-height:1.15;letter-spacing:-.02em;
  max-width:900px;
}
.banner-h1 em{font-style:normal;color:var(--c-key);}
.banner-lead{margin:16px 0 0;max-width:760px;font-size:16px;line-height:1.85;color:var(--c-text-2);}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;font-size:13px;font-weight:600;
  color:var(--c-text-2);background:rgba(17,23,38,.72);border:1px solid var(--c-line);
  transition:border-color .18s ease-out,color .18s ease-out,transform .18s ease-out;
}
.chip:hover{border-color:var(--c-key);color:var(--c-key);transform:translateY(-2px);}
.chip b{color:var(--c-key);font-variant-numeric:tabular-nums;}

/* ---------- 卡片 ---------- */
.card{
  background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:20px;
  transition:border-color .18s ease-out,transform .18s ease-out,background-color .18s ease-out;
}
@media (min-width:1024px){.card{padding:28px;}}
.card:hover{border-color:var(--c-key);transform:translateY(-2px);}
.card:active{transform:translateY(0);border-color:var(--c-key-deep);}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:999px;font-size:12.5px;font-weight:600;white-space:nowrap;
}
.badge i{width:6px;height:6px;border-radius:50%;display:inline-block;}
.badge.badge-key{color:var(--c-key);background:rgba(34,211,182,.12);border:1px solid rgba(34,211,182,.26);}
.badge.badge-key i{background:var(--c-key);}
.badge.badge-hot{color:#FF8A84;background:rgba(255,95,87,.12);border:1px solid rgba(255,95,87,.32);}
.badge.badge-hot i{background:var(--c-hot);}
.badge.badge-warn{color:var(--c-warn);background:rgba(240,180,41,.10);border:1px solid rgba(240,180,41,.28);}
.badge.badge-warn i{background:var(--c-warn);}
.badge.badge-mute{color:var(--c-text-3);background:rgba(110,122,144,.10);border:1px solid var(--c-line-hi);}
.badge.badge-mute i{background:var(--c-text-3);}

/* ---------- 阶梯速读 ---------- */
.read-layout{display:grid;gap:24px;grid-template-columns:1fr;align-items:start;}
@media (min-width:1024px){.read-layout{grid-template-columns:7fr 5fr;gap:40px;}}
.point-list{list-style:none;display:grid;gap:20px;margin-top:26px;position:relative;padding-left:2px;}
.point-list li{position:relative;padding-left:26px;border-left:2px solid var(--c-line);}
.point-list li:last-child{border-left-color:transparent;}
.point-list li::before{
  content:"";position:absolute;left:-6px;top:8px;width:10px;height:10px;border-radius:50%;
  background:var(--c-panel);border:2px solid var(--c-key);
}
.point-list h3{font-size:17px;font-weight:700;margin-bottom:6px;}
.point-list p{margin:0;font-size:15px;line-height:1.85;color:var(--c-text-2);}

.figure-block{border:1px solid var(--c-line);border-radius:var(--r-block);overflow:hidden;background:var(--c-panel);}
.figure-block img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.figure-cap{padding:16px 20px;font-size:13px;color:var(--c-text-3);border-top:1px solid var(--c-line);background:var(--c-panel-2);}

/* ---------- 对比区 ---------- */
.cmp-layout{display:grid;gap:24px;grid-template-columns:1fr;align-items:start;}
@media (min-width:1024px){.cmp-layout{grid-template-columns:3fr 9fr;gap:32px;}}
.cmp-aside{align-self:start;}
@media (min-width:1024px){.cmp-aside{position:sticky;top:96px;}}
.aside-card{background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-card);padding:20px;}
@media (min-width:1024px){.aside-card{padding:24px;}}
.aside-card h3{font-size:16px;font-weight:700;margin-bottom:16px;}
.tier-list{list-style:none;}
.tier-list li{position:relative;padding:0 0 18px 24px;border-left:2px solid var(--c-line);}
.tier-list li:last-child{padding-bottom:0;border-left-color:transparent;}
.tier-list li::before{
  content:"";position:absolute;left:-6px;top:7px;width:10px;height:10px;border-radius:50%;
  background:var(--c-panel);border:2px solid var(--c-key);
}
.tier-list .tier-name{display:block;font-size:15px;font-weight:700;color:var(--c-text);}
.tier-list .tier-desc{display:block;font-size:13.5px;line-height:1.7;color:var(--c-text-2);margin-top:4px;}
.tier-list .is-hot::before{border-color:var(--c-hot);}
.tier-list .is-wait::before{border-color:var(--c-text-3);}
.aside-note{margin-top:20px;padding-top:18px;border-top:1px solid var(--c-line);font-size:13.5px;line-height:1.8;color:var(--c-text-3);}

.cd-mini{display:flex;gap:8px;margin-top:16px;}
.cd-mini span{
  flex:1 1 0;text-align:center;padding:8px 4px;border-radius:10px;
  background:var(--c-panel-2);border:1px solid var(--c-line);
  font-size:16px;font-weight:800;font-variant-numeric:tabular-nums;color:var(--c-text);
}
.cd-mini span small{display:block;font-size:11px;font-weight:500;color:var(--c-text-3);margin-top:2px;letter-spacing:.04em;}
.cd-mini span.is-hot{color:#FF8A84;border-color:rgba(255,95,87,.32);background:rgba(255,95,87,.07);}
.cd-mini span.is-hot small{color:rgba(255,138,132,.8);}

.cmp-wrap{
  display:none;overflow-x:auto;border:1px solid var(--c-line);border-radius:var(--r-card);background:var(--c-panel);
}
@media (min-width:900px){.cmp-wrap{display:block;}}
table.cmp{width:100%;min-width:760px;border-collapse:separate;border-spacing:0;font-size:15px;}
table.cmp caption{text-align:left;padding:0;}
table.cmp thead th{
  position:sticky;top:0;z-index:2;
  background:var(--c-panel-2);
  padding:16px 18px;text-align:left;font-size:14px;font-weight:700;color:var(--c-text);
  border-bottom:1px solid var(--c-line);border-right:1px solid var(--c-line);
}
table.cmp thead th:last-child{border-right:0;}
table.cmp thead th .th-sub{display:block;font-size:12px;font-weight:500;color:var(--c-text-3);margin-top:4px;}
table.cmp tbody th{
  text-align:left;font-size:14px;font-weight:600;color:var(--c-text-2);
  padding:15px 18px;border-bottom:1px solid var(--c-line);border-right:1px solid var(--c-line);
  white-space:nowrap;background:var(--c-panel);
}
table.cmp tbody td{
  padding:15px 18px;border-bottom:1px solid var(--c-line);border-right:1px solid var(--c-line);
  color:var(--c-text-2);font-size:14.5px;line-height:1.7;
}
table.cmp tbody td:last-child,
table.cmp tbody th:last-child{border-right:0;}
table.cmp tbody tr:last-child th,
table.cmp tbody tr:last-child td{border-bottom:0;}
table.cmp tbody tr:nth-child(odd) td,
table.cmp tbody tr:nth-child(odd) th{background:var(--c-panel-3);}
table.cmp tbody tr:nth-child(even) td,
table.cmp tbody tr:nth-child(even) th{background:var(--c-panel);}
table.cmp tbody tr.row-hot td,
table.cmp tbody tr.row-hot th{background:rgba(255,95,87,.07);}
table.cmp tbody tr.row-hot th:first-child{box-shadow:inset 2px 0 0 var(--c-hot);}
table.cmp .num{font-variant-numeric:tabular-nums;font-weight:800;color:var(--c-text);}
table.cmp .cell-hot{color:#FF9C96;font-weight:600;}

.cmp-cards{display:grid;gap:16px;grid-template-columns:1fr;}
@media (min-width:640px){.cmp-cards{grid-template-columns:repeat(2,1fr);}}
@media (min-width:900px){.cmp-cards{display:none;}}
.tier-card{position:relative;overflow:hidden;}
.tier-card.is-rec{border-color:rgba(34,211,182,.5);}
.tier-card.is-rec::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:var(--c-key);}
.tier-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px;}
.tier-top h3{font-size:17px;font-weight:700;}
.kv{display:grid;gap:0;}
.kv > div{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding:10px 0;border-bottom:1px dashed var(--c-line);}
.kv > div:last-child{border-bottom:0;padding-bottom:0;}
.kv dt{font-size:13.5px;color:var(--c-text-3);flex:0 0 auto;}
.kv dd{margin:0;text-align:right;font-size:14px;line-height:1.7;color:var(--c-text-2);}

/* ---------- 流程 ---------- */
.flow{display:grid;gap:16px;grid-template-columns:1fr;}
@media (min-width:900px){.flow{grid-template-columns:repeat(4,1fr);gap:24px;}}
.step{
  position:relative;background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px;transition:border-color .18s ease-out,transform .18s ease-out;
}
.step:hover{border-color:var(--c-key);transform:translateY(-2px);}
.step-num{font-size:28px;font-weight:800;line-height:1;letter-spacing:-.02em;font-variant-numeric:tabular-nums;color:var(--c-key);}
.step h3{font-size:17px;font-weight:700;margin:12px 0 8px;}
.step p{margin:0;font-size:14.5px;line-height:1.8;color:var(--c-text-2);}
@media (min-width:900px){
  .flow .step::after{
    content:"";position:absolute;left:22px;right:-24px;top:34px;height:1px;
    background:linear-gradient(90deg,var(--c-line) 0%,rgba(31,40,57,0) 100%);
  }
  .flow .step:last-child::after{display:none;}
}

/* ---------- 窗口与提醒 ---------- */
.window-layout{display:grid;gap:24px;grid-template-columns:1fr;}
@media (min-width:1024px){.window-layout{grid-template-columns:5fr 7fr;gap:40px;align-items:center;}}
.cd{display:flex;gap:12px;margin-top:20px;}
.cd-unit{
  flex:1 1 0;text-align:center;background:var(--c-panel-2);border:1px solid var(--c-line);
  border-radius:12px;padding:14px 8px;
}
.cd-num{
  display:block;font-size:clamp(26px,5vw,36px);font-weight:800;line-height:1.1;
  letter-spacing:-.02em;font-variant-numeric:tabular-nums;color:var(--c-text);
}
.cd-label{display:block;font-size:12px;color:var(--c-text-3);margin-top:6px;letter-spacing:.04em;}
.cd-unit.is-hot{border-color:rgba(255,95,87,.32);background:rgba(255,95,87,.06);}
.cd-unit.is-hot .cd-num{color:#FF8A84;animation:tick 1s ease-out infinite;}
@keyframes tick{0%{transform:scale(1);}22%{transform:scale(1.06);}100%{transform:scale(1);}}
.remind-list{list-style:none;display:grid;gap:14px;}
.remind-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:16px 18px;background:var(--c-panel);border:1px solid var(--c-line);border-radius:12px;
  font-size:14.5px;line-height:1.75;color:var(--c-text-2);
}
.remind-list li::before{
  content:"";flex:0 0 auto;width:6px;height:6px;margin-top:9px;border-radius:1px;background:var(--c-key);
}

/* ---------- 适用场景 ---------- */
.scene-grid{display:grid;gap:20px;grid-template-columns:1fr;}
@media (min-width:768px){.scene-grid{grid-template-columns:repeat(2,1fr);gap:24px;}}
@media (min-width:1024px){.scene-grid > *:nth-child(even){margin-top:32px;}}
.scene-card{background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
  transition:border-color .18s ease-out,transform .18s ease-out;}
.scene-card:hover{border-color:var(--c-key);transform:translateY(-2px);}
.scene-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-bottom:1px solid var(--c-line);}
.scene-body{padding:20px;}
@media (min-width:1024px){.scene-body{padding:26px;}}
.scene-body h3{font-size:18px;font-weight:700;margin-bottom:10px;}
.scene-body p{margin:0 0 14px;font-size:14.5px;line-height:1.8;color:var(--c-text-2);}
.scene-tags{display:flex;flex-wrap:wrap;gap:8px;}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--c-line);margin-top:8px;}
.faq-item{position:relative;border-bottom:1px solid var(--c-line);}
.faq-item::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:2px;border-radius:2px;
  background:var(--c-key);opacity:0;transition:opacity .2s ease-out;
}
.faq-item.is-open::before{opacity:1;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 4px 20px 16px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;color:var(--c-text);line-height:1.6;
  transition:color .18s ease-out;
}
.faq-q:hover{color:var(--c-key);}
.faq-item.is-open .faq-q{color:var(--c-key);}
.chev{
  flex:0 0 auto;width:9px;height:9px;margin-right:6px;
  border-right:2px solid currentColor;border-bottom:2px solid currentColor;
  transform:rotate(45deg);transition:transform .2s ease-out;
}
.faq-item.is-open .chev{transform:rotate(-135deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease-out;}
.faq-a-inner{padding:0 24px 22px 16px;font-size:15px;line-height:1.85;color:var(--c-text-2);}

/* ---------- CTA 条 ---------- */
.cta-bar{
  display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between;
  padding:22px 24px;border-radius:var(--r-card);
  border:1px solid rgba(255,95,87,.35);background:rgba(255,95,87,.06);
}
.cta-bar h3{font-size:18px;font-weight:700;margin-bottom:6px;}
.cta-bar p{margin:0;font-size:14px;line-height:1.75;color:var(--c-text-2);}

/* ---------- 表单 ---------- */
.form-layout{display:grid;gap:28px;grid-template-columns:1fr;}
@media (min-width:1024px){.form-layout{grid-template-columns:5fr 7fr;gap:48px;}}
.form-points{list-style:none;display:grid;gap:16px;margin-top:22px;}
.form-points li{position:relative;padding-left:22px;font-size:14.5px;line-height:1.8;color:var(--c-text-2);}
.form-points li::before{
  content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:1px;background:var(--c-key);
}
.form-card{background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-card);padding:22px;}
@media (min-width:768px){.form-card{padding:30px;}}
.field-row{display:grid;gap:16px;grid-template-columns:1fr;}
@media (min-width:640px){.field-row{grid-template-columns:repeat(2,1fr);}}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--c-text-2);margin-bottom:8px;}
.field input[type="text"],
.field input[type="tel"],
.field select,
.field textarea{
  width:100%;height:48px;padding:0 14px;border-radius:var(--r-btn);
  background:var(--c-panel-3);border:1px solid var(--c-line);color:var(--c-text);
  font-size:15px;transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.field textarea{height:auto;min-height:120px;padding:12px 14px;line-height:1.8;resize:vertical;}
.field select{appearance:none;cursor:pointer;
  background-image:linear-gradient(45deg,transparent 50%,var(--c-text-2) 50%),linear-gradient(135deg,var(--c-text-2) 50%,transparent 50%);
  background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;
  background-size:5px 5px,5px 5px;background-repeat:no-repeat;
}
.field input::placeholder,.field textarea::placeholder{color:var(--c-text-3);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-key);box-shadow:0 0 0 3px rgba(34,211,182,.15);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--c-hot);}
.field .err{display:none;margin-top:6px;font-size:12.5px;color:#FF8A84;}
.field.has-error .err{display:block;}
.check{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;line-height:1.7;color:var(--c-text-2);}
.check input{width:16px;height:16px;margin-top:5px;accent-color:#22D3B6;flex:0 0 auto;}
.form-foot{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:20px;}
.form-status{margin-top:14px;font-size:14px;color:var(--c-key);display:none;}
.form-status.is-on{display:block;}
.spinner{
  width:14px;height:14px;border-radius:50%;border:2px solid rgba(7,17,15,.35);
  border-top-color:#07110F;animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg);}}

/* ---------- 返回条 ---------- */
.back-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:18px;justify-content:space-between;
  padding:24px 0 0;border-top:1px solid var(--c-line);margin-top:8px;
}
.back-row p{margin:0;font-size:14px;color:var(--c-text-3);}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;background:var(--c-bg);border-top:1px solid var(--c-line);
  padding:56px 0 24px;margin-top:0;overflow:hidden;
}
.site-footer .star-field{opacity:.9;}
.site-footer .container-x{position:relative;}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr;}
@media (min-width:768px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.5fr;gap:40px;}}
.footer-col h4{font-size:14px;font-weight:700;color:var(--c-text);margin-bottom:16px;letter-spacing:.04em;}
.footer-col ul{list-style:none;display:grid;gap:10px;}
.footer-col ul a{font-size:14px;color:var(--c-text-2);}
.footer-col ul a:hover{color:var(--c-key);}
.footer-col p{margin:16px 0 0;font-size:14px;line-height:1.85;color:var(--c-text-3);}
.footer-key{
  display:inline-block;margin-top:16px;padding:4px 12px;border-radius:999px;
  font-size:13px;color:var(--c-key);background:rgba(34,211,182,.08);border:1px solid rgba(34,211,182,.28);
}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:8px 20px;align-items:center;justify-content:space-between;
  margin-top:40px;padding-top:20px;border-top:1px solid var(--c-line);
  font-size:13px;color:var(--c-text-3);
}
.footer-bottom .dot{margin:0 8px;color:var(--c-line-hi);}

/* ---------- 进场动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .32s ease-out,transform .32s ease-out;}
.reveal.is-in{opacity:1;transform:none;}

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

/* roulang page: category4 */
:root{
  --c-bg:#0A0D14;
  --c-panel:#111726;
  --c-panel-2:#161D2E;
  --c-line:#1F2839;
  --c-line-2:#2B3448;
  --c-text:#EEF1F6;
  --c-text-2:#A8B2C4;
  --c-text-3:#6E7A90;
  --c-body:#C7CEDC;
  --c-key:#22D3B6;
  --c-key-deep:#17A38C;
  --c-hot:#FF5F57;
  --c-warn:#F0B429;
  --r-btn:10px;
  --r-card:16px;
  --r-lg:20px;
  --shadow:0 10px 30px rgba(0,0,0,.35);
  --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(--c-bg);
  color:var(--c-body);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  letter-spacing:.01em;
}
body img{max-width:100%;display:block;}
body a{color:var(--c-text-2);text-decoration:none;transition:color .18s ease-out,border-color .18s ease-out;}
body a:hover{color:var(--c-key);}
body h1,body h2,body h3,body h4{color:var(--c-text);margin:0;}
body p{margin:0 0 1.2em;}
body ul,body ol{list-style:none;margin:0;padding:0;}
::selection{background:rgba(34,211,182,.28);color:#fff;}

a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--c-key);
  outline-offset:2px;
}

.container-x{max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:768px){.container-x{padding:0 32px;}}
@media (min-width:1280px){.container-x{max-width:1280px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(10,13,20,.92);
  border-bottom:1px solid var(--c-line);
  transition:background .22s ease-out,border-color .22s ease-out;
}
.site-header.is-scrolled{background:rgba(10,13,20,.98);border-bottom-color:var(--c-key);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px;}

.brand{display:inline-flex;align-items:center;gap:12px;color:var(--c-text);}
.brand:hover{color:var(--c-text);}
.brand-mark{
  width:22px;height:22px;flex:none;
  background:linear-gradient(135deg,#22D3B6,#17A38C);
  clip-path:polygon(50% 0%,61% 39%,100% 50%,61% 61%,50% 100%,39% 61%,0% 50%,39% 39%);
}
.brand-text{display:flex;align-items:baseline;gap:3px;line-height:1;}
.brand-text b{font-size:18px;font-weight:800;letter-spacing:.02em;color:var(--c-text);}
.brand-text span{font-size:13px;font-weight:400;letter-spacing:.08em;color:var(--c-text-2);}

.nav-links{display:flex;align-items:center;gap:4px;}
.nav-links > a{
  position:relative;padding:10px 14px;border-radius:8px;
  font-size:15px;font-weight:600;color:var(--c-text-2);
}
.nav-links > a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--c-key);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease-out;
}
.nav-links > a:hover{color:var(--c-key);}
.nav-links > a:hover::after{transform:scaleX(.6);}
.nav-links > a.is-active{color:var(--c-key);}
.nav-links > a.is-active::after{transform:scaleX(.6);}

.nav-side{display:flex;align-items:center;gap:14px;}
.status-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:999px;
  font-size:12px;background:rgba(34,211,182,.12);color:var(--c-key);white-space:nowrap;
}
.status-badge i{width:6px;height:6px;border-radius:50%;background:var(--c-key);box-shadow:0 0 0 3px rgba(34,211,182,.16);}
.nav-count{
  display:inline-block;font-size:13px;color:var(--c-text-3);
  font-variant-numeric:tabular-nums;letter-spacing:.02em;white-space:nowrap;
}
.nav-count.beat{animation:beat .55s ease-out;}
@keyframes beat{0%{transform:scale(1);}40%{transform:scale(1.06);}100%{transform:scale(1);}}

.burger{
  display:none;width:40px;height:40px;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  background:transparent;border:1px solid var(--c-line-2);border-radius:10px;cursor:pointer;
}
.burger span{width:18px;height:2px;background:var(--c-text-2);border-radius:2px;transition:transform .2s ease-out,opacity .2s ease-out;}
.burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.burger.is-open span:nth-child(2){opacity:0;}
.burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.drawer-foot{display:none;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-btn);
  font-family:inherit;font-size:15px;font-weight:700;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background .18s ease-out,border-color .18s ease-out,color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn.btn-primary{background:var(--c-key);color:#07110F;}
.btn.btn-primary:hover{background:#2AE3C4;color:#07110F;transform:translateY(-1px);box-shadow:0 6px 18px rgba(34,211,182,.22);}
.btn.btn-primary:active{background:var(--c-key-deep);transform:translateY(0);box-shadow:none;}
.btn.btn-ghost{background:transparent;border-color:var(--c-line-2);color:var(--c-text-2);}
.btn.btn-ghost:hover{border-color:var(--c-key);color:var(--c-key);}
.btn.btn-ghost:active{border-color:var(--c-key-deep);color:var(--c-key-deep);}
.btn.btn-sm{height:40px;padding:0 16px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}

.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--c-text-2);}
.link-arrow .arr{transition:transform .18s ease-out;}
.link-arrow:hover .arr{transform:translateX(4px);}

/* ---------- banner ---------- */
.page-banner{position:relative;overflow:hidden;border-bottom:1px solid var(--c-line);}
.banner-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.34;}
.page-banner::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(10,13,20,.97) 0%,rgba(10,13,20,.86) 52%,rgba(10,13,20,.66) 100%);
}
.banner-inner{position:relative;z-index:2;padding:48px 20px 56px;}
@media (min-width:768px){.banner-inner{padding:60px 32px 72px;}}
.banner-inner h1{
  font-size:clamp(30px,5vw,54px);font-weight:800;line-height:1.15;letter-spacing:-.02em;
  max-width:820px;
}
.banner-lead{margin:18px 0 0;max-width:660px;font-size:16px;line-height:1.9;color:var(--c-text-2);}

.crumb{margin-bottom:18px;}
.crumb ol{display:flex;flex-wrap:wrap;gap:0;font-size:13px;color:var(--c-text-3);}
.crumb li+li::before{content:"/";margin:0 8px;color:var(--c-line-2);}
.crumb a{color:var(--c-text-3);}
.crumb a:hover{color:var(--c-key);}
.crumb [aria-current="page"]{color:var(--c-text-2);}

/* ---------- sections ---------- */
.sec{padding:56px 0;}
@media (min-width:768px){.sec{padding:72px 0;}}
@media (min-width:1024px){.sec{padding:96px 0;}}
.sec-tight{padding:44px 0;}
@media (min-width:1024px){.sec-tight{padding:56px 0;}}

.sec-head{margin-bottom:32px;max-width:780px;}
.sec-head h2{
  position:relative;padding-left:16px;
  font-size:clamp(24px,3.2vw,36px);font-weight:700;line-height:1.25;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:.24em;bottom:.24em;width:4px;border-radius:2px;background:var(--c-key);
}
.sec-head p{margin:12px 0 0;font-size:15px;line-height:1.85;color:var(--c-text-2);}

.reveal{opacity:1;transform:none;}
html.js .reveal{opacity:0;transform:translateY(12px);transition:opacity .32s ease-out,transform .32s ease-out;}
html.js .reveal.is-in{opacity:1;transform:none;}

/* ---------- search block ---------- */
.search-wrap{
  background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:24px;
}
@media (min-width:768px){.search-wrap{padding:36px;}}
.search-wrap h2{font-size:clamp(22px,2.6vw,28px);font-weight:700;line-height:1.3;}
.search-wrap .search-sub{margin:12px 0 0;font-size:15px;color:var(--c-text-2);line-height:1.85;max-width:720px;}
.search-box{display:flex;gap:10px;margin-top:24px;}
.search-box .search-input{
  flex:1;min-width:0;height:48px;padding:0 16px;border-radius:10px;
  background:#0F1420;border:1px solid var(--c-line);color:var(--c-text);
  font-family:inherit;font-size:15px;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.search-box .search-input::placeholder{color:var(--c-text-3);}
.search-box .search-input:focus{outline:none;border-color:var(--c-key);box-shadow:0 0 0 3px rgba(34,211,182,.15);}
.search-hint{margin:14px 0 0;font-size:13px;color:var(--c-text-3);}

.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 14px;border-radius:999px;border:1px solid var(--c-line);
  font-size:13px;color:var(--c-text-2);
  transition:border-color .18s ease-out,color .18s ease-out,background .18s ease-out,transform .18s ease-out;
}
.chip:hover{border-color:var(--c-key);color:var(--c-key);background:rgba(34,211,182,.06);}
.chip.is-hot{border-color:rgba(255,95,87,.45);color:var(--c-hot);}
.chip.is-hot:hover{border-color:var(--c-hot);color:var(--c-hot);background:rgba(255,95,87,.08);}

/* ---------- split ---------- */
.split{display:grid;gap:24px;}
@media (min-width:1024px){.split{grid-template-columns:4fr 8fr;gap:48px;align-items:start;}}
.split-aside{position:relative;}
@media (min-width:1024px){.split-aside{position:sticky;top:100px;}}
.aside-card{
  background:var(--c-panel-2);border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;
}
.aside-card h3{font-size:17px;font-weight:700;margin-bottom:12px;}
.aside-card p{font-size:14px;color:var(--c-text-2);line-height:1.85;margin:0 0 16px;}
.aside-steps{display:grid;gap:14px;margin:0;}
.aside-steps li{position:relative;padding-left:34px;font-size:14px;color:var(--c-text-2);line-height:1.8;}
.aside-steps li b{
  position:absolute;left:0;top:2px;
  width:22px;height:22px;border-radius:6px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(34,211,182,.12);color:var(--c-key);
  font-size:12px;font-weight:800;font-variant-numeric:tabular-nums;
}

.fix-list{display:grid;gap:16px;}
@media (min-width:900px){.fix-list{grid-template-columns:1fr 1fr;}}
.fix-card{
  background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px;transition:border-color .18s ease-out,transform .18s ease-out;
}
.fix-card:hover{border-color:var(--c-key);transform:translateY(-2px);}
.fix-card:active{transform:translateY(0);border-color:var(--c-key-deep);}
.fix-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px;}
.fix-no{font-size:13px;font-weight:800;color:var(--c-key);font-variant-numeric:tabular-nums;letter-spacing:.08em;}
.fix-card h3{font-size:17px;font-weight:700;line-height:1.45;margin:0 0 10px;}
.fix-card p{font-size:14px;line-height:1.85;color:var(--c-text-2);margin:0;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:999px;font-size:12px;
  background:rgba(34,211,182,.12);color:var(--c-key);white-space:nowrap;
}
.tag.tag-hot{background:rgba(255,95,87,.12);color:var(--c-hot);}
.tag.tag-warn{background:rgba(240,180,41,.12);color:var(--c-warn);}

/* ---------- guide ---------- */
.guide{display:grid;gap:28px;align-items:center;}
@media (min-width:1024px){.guide{grid-template-columns:6fr 6fr;gap:56px;}}
.guide-media{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--c-line);
  background:var(--c-panel-2);aspect-ratio:16/10;
}
.guide-media img{width:100%;height:100%;object-fit:cover;}
.guide-body h2{font-size:clamp(22px,2.8vw,32px);font-weight:700;line-height:1.3;}
.guide-body > p{margin:16px 0 0;font-size:15px;line-height:1.9;color:var(--c-text-2);}
.point-list{display:grid;gap:12px;margin-top:22px;}
.point-list li{position:relative;padding-left:18px;font-size:15px;line-height:1.8;color:var(--c-body);}
.point-list li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:1px;background:var(--c-key);
}
.point-list li b{color:var(--c-text);font-weight:700;}

/* ---------- faq ---------- */
.faq{max-width:920px;margin:0 auto;border-top:1px solid var(--c-line);}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 4px;font-size:17px;font-weight:600;line-height:1.6;color:var(--c-text);
  transition:color .18s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--c-key);}
.faq-item[open] summary{color:var(--c-key);}
.faq-ico{width:16px;height:16px;flex:none;position:relative;}
.faq-ico::before,.faq-ico::after{
  content:"";position:absolute;left:0;top:50%;width:100%;height:2px;border-radius:2px;
  background:var(--c-key);transform:translateY(-50%);
}
.faq-ico::after{transform:translateY(-50%) rotate(90deg);transition:transform .2s ease-out;}
.faq-item[open] .faq-ico::after{transform:translateY(-50%) rotate(0deg);}
.faq-body{
  border-left:2px solid var(--c-key);
  padding:0 4px 24px 18px;
}
.faq-body p{margin:0;font-size:15px;line-height:1.85;color:var(--c-text-2);}

/* ---------- cta strip ---------- */
.cta-strip{
  display:flex;flex-direction:column;gap:18px;
  padding:24px;border-radius:var(--r-card);
  border:1px solid rgba(34,211,182,.35);
  background:linear-gradient(90deg,rgba(34,211,182,.07),rgba(34,211,182,.015));
}
@media (min-width:900px){
  .cta-strip{flex-direction:row;align-items:center;justify-content:space-between;padding:20px 30px;min-height:96px;}
}
.cta-strip h3{font-size:17px;font-weight:700;line-height:1.5;}
.cta-strip p{margin:8px 0 0;font-size:14px;line-height:1.8;color:var(--c-text-2);max-width:760px;}

/* ---------- link row ---------- */
.link-row{display:flex;flex-wrap:wrap;gap:12px 30px;align-items:center;margin-top:28px;}
.link-row .sep{width:1px;height:18px;background:var(--c-line);}

/* ---------- footer ---------- */
.site-footer{background:var(--c-bg);border-top:1px solid var(--c-line);padding:56px 0 28px;}
.footer-grid{display:grid;gap:32px;}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}}
.footer-col h4{font-size:15px;font-weight:700;margin:0 0 16px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col ul a{
  font-size:14px;color:var(--c-text-2);
  text-decoration:underline;text-decoration-color:rgba(110,122,144,.35);text-underline-offset:3px;
}
.footer-col ul a:hover{color:var(--c-key);text-decoration-color:var(--c-key);}
.footer-col p{margin:16px 0 0;font-size:14px;line-height:1.85;color:var(--c-text-3);}
.footer-key{
  display:inline-block;margin-top:14px;padding:4px 10px;border-radius:999px;
  font-size:12px;background:rgba(34,211,182,.12);color:var(--c-key);
}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;
  font-size:13px;color:var(--c-text-3);
}
.footer-bottom .dot{margin:0 8px;color:var(--c-line-2);}

/* ---------- mobile nav ---------- */
@media (max-width:1023px){
  .nav-inner{height:60px;}
  .nav-side .status-badge,.nav-side .nav-count{display:none;}
  .burger{display:flex;}
  .nav-links{
    position:fixed;top:60px;left:0;right:0;bottom:0;z-index:75;
    flex-direction:column;align-items:stretch;gap:0;
    padding:20px 20px 40px;
    background:var(--c-bg);border-top:1px solid var(--c-line);
    transform:translateX(100%);transition:transform .24s ease-out;
    overflow-y:auto;
  }
  .nav-links.is-open{transform:translateX(0);}
  .nav-links > a{
    font-size:18px;font-weight:700;padding:16px 4px;border-radius:0;
    border-bottom:1px solid var(--c-line);
  }
  .nav-links > a::after{left:4px;right:auto;width:30px;bottom:12px;}
  .nav-links > a:hover::after,.nav-links > a.is-active::after{transform:scaleX(1);}
  .drawer-foot{
    display:flex;flex-direction:column;gap:14px;margin-top:auto;
    padding-top:24px;border-top:1px solid var(--c-line);
  }
  .drawer-count{font-size:13px;color:var(--c-text-3);font-variant-numeric:tabular-nums;}
}

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