/* roulang page: index */
/* ================= 设计变量 ================= */
:root{
  --bg-base:#070A12;
  --layer-1:#0C111D;
  --layer-2:#122033;
  --glass:rgba(255,255,255,.055);
  --glass-hi:rgba(255,255,255,.09);
  --primary:#2E6BFF;
  --primary-ink:#7FB3FF;
  --pulse:#16E0C8;
  --gold:#FFC24B;
  --line:rgba(120,160,255,.14);
  --line-hi:rgba(22,224,200,.45);
  --text:#F2F6FF;
  --text-2:#A6B4CC;
  --text-3:#6C7A94;
  --danger:#FF5A6E;
  --r-card:16px;
  --r-block:24px;
  --r-btn:12px;
  --shadow-card:0 12px 32px rgba(0,0,0,.45),inset 0 1px 0 rgba(255,255,255,.06);
  --font-sans:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:"Inter","JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --cr:1280px;
}
/* ================= 基础重置 ================= */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(900px 520px at 12% -8%,rgba(46,107,255,.16),transparent 70%),
    radial-gradient(760px 480px at 96% 6%,rgba(22,224,200,.09),transparent 70%);
}
img{max-width:100%;display:block;border-radius:12px}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure{margin:0}
input,select,textarea{font:inherit}
::selection{background:rgba(22,224,200,.3);color:#fff}
:focus-visible{outline:2px solid var(--pulse);outline-offset:2px}
.mono{font-family:var(--font-mono);letter-spacing:.06em;font-variant-numeric:tabular-nums}
/* ================= 布局容器 ================= */
.container{width:100%;max-width:var(--cr);margin:0 auto;padding:0 32px}
.section{position:relative;padding:96px 0;border-top:1px solid var(--line)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap}
.sec-no{font-family:var(--font-mono);font-size:13px;letter-spacing:.08em;color:var(--pulse);display:inline-block}
.sec-title{font-size:36px;line-height:1.24;font-weight:700;margin-top:10px;letter-spacing:.01em}
.sec-desc{font-size:15px;color:var(--text-2);max-width:600px;margin-top:14px;line-height:1.85}
.sec-link{font-size:14px;color:var(--primary-ink);display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.sec-link:hover{color:var(--pulse)}
.sec-link svg{transition:transform .2s ease}
.sec-link:hover svg{transform:translateX(4px)}
/* ================= 顶部导航 ================= */
.site-header{
  position:sticky;top:0;z-index:80;
  border-bottom:1px solid transparent;
  transition:background .28s ease,backdrop-filter .28s ease,border-color .28s ease;
}
.site-header.is-scrolled{
  background:rgba(7,10,18,.78);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom-color:var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex-shrink:0;
  display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(46,107,255,.9),rgba(22,224,200,.75));
  box-shadow:0 0 18px rgba(46,107,255,.45);
}
.brand-mark svg{width:20px;height:20px;display:block}
.brand-text{font-size:17px;font-weight:700;color:var(--text);letter-spacing:.01em;white-space:nowrap}
.nav-chips{
  display:flex;align-items:center;gap:8px;flex:1;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;padding:6px 0;
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 20px,#000 calc(100% - 20px),transparent 100%);
  mask-image:linear-gradient(90deg,transparent 0,#000 20px,#000 calc(100% - 20px),transparent 100%);
}
.nav-chips::-webkit-scrollbar{display:none}
.chip{
  position:relative;display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border-radius:999px;border:1px solid transparent;background:var(--glass);
  color:var(--text-2);font-size:14px;white-space:nowrap;
  transition:color .2s ease,border-color .2s ease,background .22s ease,box-shadow .22s ease;
}
.chip:hover{color:var(--text);border-color:rgba(22,224,200,.4)}
.chip.is-active{
  color:var(--text);
  background:linear-gradient(135deg,rgba(46,107,255,.24),rgba(22,224,200,.16));
  border-color:rgba(46,107,255,.5);
  box-shadow:0 0 18px rgba(46,107,255,.28);
}
.chip.is-active::before{
  content:"";position:absolute;left:50%;transform:translateX(-50%);
  bottom:5px;width:40%;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--pulse));
  box-shadow:0 0 12px rgba(22,224,200,.8);
}
.nav-right{display:flex;align-items:center;gap:12px;flex-shrink:0}
.icon-btn{
  width:38px;height:38px;border-radius:10px;display:grid;place-items:center;
  border:1px solid var(--line);background:var(--glass);color:var(--text-2);
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.icon-btn:hover{color:var(--text);border-color:rgba(22,224,200,.5);background:var(--glass-hi)}
.icon-btn svg{width:18px;height:18px}
.hamburger{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:var(--glass);place-items:center}
.hamburger span{display:block;width:18px;height:1.6px;background:var(--text);border-radius:2px;margin:4px auto}
.hamburger span:first-child{margin-top:0}
.hamburger span:last-child{margin-bottom:0}
.search-panel{
  position:absolute;left:0;right:0;top:100%;
  background:rgba(12,17,29,.96);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  max-height:0;overflow:hidden;transition:max-height .3s ease;
}
.search-panel.is-open{max-height:140px}
.search-form{display:flex;align-items:flex-end;gap:12px;padding:18px 32px;max-width:var(--cr);margin:0 auto}
.search-field{flex:1;display:flex;flex-direction:column;gap:6px}
.search-label{font-size:13px;color:var(--text-2)}
.search-field input{
  height:44px;border-radius:12px;background:var(--layer-1);
  border:1px solid var(--line);color:var(--text);padding:0 14px;width:100%;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-field input:focus{outline:none;border-color:var(--pulse);box-shadow:0 0 0 4px rgba(22,224,200,.12)}
/* ================= 按钮 ================= */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.02em;white-space:nowrap;
  transition:transform .2s ease,box-shadow .25s ease,filter .2s ease,border-color .2s ease,background .2s ease;
}
.btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:10px}
.btn-primary{background:linear-gradient(135deg,#2E6BFF,#16E0C8);color:#04101F;box-shadow:0 0 24px rgba(46,107,255,.45)}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 0 40px rgba(46,107,255,.6);transform:translateY(-2px)}
.btn-gold{background:linear-gradient(135deg,#FFD275,#FFC24B);color:#1A1206;box-shadow:0 0 24px rgba(255,194,75,.35)}
.btn-gold:hover{filter:brightness(1.06);box-shadow:0 0 40px rgba(255,194,75,.55);transform:translateY(-2px)}
.btn-ghost{background:var(--glass);border:1px solid var(--line);color:var(--text);backdrop-filter:blur(8px)}
.btn-ghost:hover{border-color:var(--line-hi);transform:translateY(-2px)}
.btn:active{transform:translateY(0);box-shadow:inset 0 2px 10px rgba(0,0,0,.45)}
/* ================= Hero ================= */
.hero{position:relative;display:flex;flex-direction:column;min-height:620px;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;border-radius:0}
.hero-veil{position:absolute;inset:0;z-index:1;background:linear-gradient(180deg,rgba(7,10,18,.72),rgba(7,10,18,.94))}
.beat-grid{
  position:absolute;inset:0;z-index:2;pointer-events:none;opacity:.06;
  background-image:repeating-linear-gradient(115deg,rgba(160,200,255,1) 0 1px,transparent 1px 64px);
}
.hero-glow{position:absolute;border-radius:50%;filter:blur(90px);z-index:2;pointer-events:none}
.hero-glow-a{width:520px;height:520px;left:-140px;top:-160px;background:radial-gradient(circle,rgba(46,107,255,.5),transparent 70%)}
.hero-glow-b{width:460px;height:460px;right:-120px;bottom:-180px;background:radial-gradient(circle,rgba(22,224,200,.34),transparent 70%)}
.hero-inner{
  position:relative;z-index:3;flex:1;
  display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;
  padding-top:72px;padding-bottom:56px;
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;
  border-radius:999px;border:1px solid var(--line);background:var(--glass);
  font-size:12px;letter-spacing:.08em;color:var(--primary-ink);font-family:var(--font-mono);
}
.hero h1{
  font-size:52px;line-height:1.16;font-weight:800;letter-spacing:.01em;
  margin:22px 0 0;max-width:14em;
}
.hero-sub{font-size:18px;line-height:1.8;color:var(--text-2);margin-top:20px;max-width:34em}
.hero-cta{display:flex;gap:14px;margin-top:36px;flex-wrap:wrap}
.hero-visual{position:relative}
.hero-card{
  border-radius:var(--r-block);border:1px solid var(--line);background:var(--glass);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);padding:28px;
}
.hero-card-top{display:flex;align-items:center;gap:20px}
.ring{position:relative;width:112px;height:112px;flex-shrink:0}
.ring svg{transform:rotate(-90deg);display:block}
.ring-val{
  position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;
  font-family:var(--font-mono);letter-spacing:.06em;
}
.ring-val b{font-size:24px;font-weight:700;color:var(--text);line-height:1}
.ring-val small{font-size:11px;color:var(--text-3);margin-top:4px}
.hero-card-title{font-size:19px;font-weight:700;line-height:1.4}
.hero-card-note{font-size:14px;color:var(--text-2);margin-top:8px;line-height:1.7}
.hero-card-stats{display:grid;grid-template-columns:repeat(3,1fr);margin-top:26px;border-top:1px solid var(--line);padding-top:20px}
.hero-card-stats div{border-left:1px solid var(--line);padding-left:16px}
.hero-card-stats div:first-child{border-left:0;padding-left:0}
.hero-card-stats b{display:block;font-family:var(--font-mono);font-size:22px;color:var(--pulse);letter-spacing:.06em}
.hero-card-stats span{font-size:12px;color:var(--text-3)}
.hero-bar{
  position:relative;z-index:3;display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);
}
.hero-bar-item{padding:20px 24px;border-left:1px solid var(--line)}
.hero-bar-item:first-child{border-left:0;padding-left:0}
.hero-bar-item b{display:block;font-family:var(--font-mono);font-size:24px;letter-spacing:.06em;color:var(--text);line-height:1.2}
.hero-bar-item span{font-size:13px;color:var(--text-3)}
/* ================= 信任条 ================= */
.trust-strip{padding:34px 0}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.trust-item{display:flex;align-items:center;gap:14px;padding:6px 26px;border-left:1px solid var(--line)}
.trust-item:first-child{border-left:0;padding-left:0}
.trust-ico{
  width:42px;height:42px;border-radius:12px;flex-shrink:0;display:grid;place-items:center;
  background:rgba(22,224,200,.1);border:1px solid rgba(22,224,200,.25);color:var(--pulse);
}
.trust-ico svg{width:20px;height:20px}
.trust-txt b{display:block;font-size:14px;color:var(--text);font-weight:600}
.trust-txt span{font-size:12px;color:var(--text-3);font-family:var(--font-mono);letter-spacing:.06em}
/* ================= 权益对比表 ================= */
.compare-table-wrap{
  border:1px solid var(--line);border-radius:var(--r-block);overflow:hidden;background:rgba(12,17,29,.5);
}
table.compare{width:100%;border-collapse:collapse;table-layout:fixed}
table.compare thead th{
  position:sticky;top:72px;z-index:5;
  background:#0B1120;padding:20px 18px;font-size:14px;font-weight:600;color:var(--text-2);
  border-bottom:1px solid var(--line);text-align:left;
}
table.compare thead th:first-child{width:28%;padding-left:28px}
table.compare thead th:not(:first-child){width:24%;text-align:center}
table.compare thead th.is-rec{color:var(--gold);background:rgba(255,194,75,.06)}
table.compare tbody td{
  padding:0 18px;height:64px;font-size:14px;color:var(--text-2);
  border-bottom:1px solid var(--line);text-align:center;
}
table.compare tbody td:first-child{text-align:left;padding-left:28px;color:var(--text)}
table.compare tbody tr:nth-child(even) td{background:rgba(255,255,255,.02)}
table.compare tbody tr:last-child td{border-bottom:0}
table.compare tbody td.is-rec{background:rgba(46,107,255,.07);border-left:1px solid rgba(46,107,255,.35);border-right:1px solid rgba(46,107,255,.35)}
table.compare tbody tr:nth-child(even) td.is-rec{background:rgba(46,107,255,.11)}
.tick{color:var(--pulse);font-size:17px;font-weight:700}
.cross{color:var(--text-3);font-size:16px}
.badge{
  display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:999px;
  font-size:12px;line-height:1;letter-spacing:.04em;white-space:nowrap;
}
.badge-gold{background:rgba(255,194,75,.16);color:var(--gold);border:1px solid rgba(255,194,75,.4)}
.badge-new{background:rgba(22,224,200,.14);color:var(--pulse);border:1px solid rgba(22,224,200,.35)}
.badge-glass{background:var(--glass);color:var(--text-2);border:1px solid var(--line)}
.price-num{font-family:var(--font-mono);font-size:20px;color:var(--text);letter-spacing:.04em}
.price-num.is-gold{color:var(--gold)}
.compare-cards{display:none}
/* ================= 等级亮点 ================= */
.level-track{position:relative;padding-left:56px}
.level-track::before{
  content:"";position:absolute;left:20px;top:10px;bottom:10px;width:1px;
  background:linear-gradient(180deg,rgba(46,107,255,.6),rgba(22,224,200,.5),rgba(46,107,255,0));
}
.level-item{position:relative;margin-bottom:34px}
.level-item:last-child{margin-bottom:0}
.level-dot{
  position:absolute;left:-42px;top:30px;width:12px;height:12px;border-radius:50%;
  background:var(--pulse);box-shadow:0 0 0 4px rgba(22,224,200,.14),0 0 16px rgba(22,224,200,.6);
}
.level-card{
  position:relative;border-radius:var(--r-card);border:1px solid var(--line);
  background:var(--glass);backdrop-filter:blur(12px);box-shadow:var(--shadow-card);
  padding:26px;width:60%;transition:border-color .22s ease,transform .22s ease;
}
.level-card:hover{border-color:var(--line-hi);transform:translateY(-4px)}
.level-item:nth-child(2) .level-card{width:52%;margin-left:38%}
.level-item:nth-child(3) .level-card{width:60%}
.level-head{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.level-name{font-size:22px;font-weight:700;display:flex;align-items:center;gap:10px}
.level-code{font-family:var(--font-mono);font-size:12px;color:var(--text-3);letter-spacing:.08em}
.level-points{margin-top:16px;display:grid;gap:10px}
.level-points li{display:flex;gap:10px;font-size:14px;color:var(--text-2);line-height:1.7}
.level-points li::before{content:"";flex-shrink:0;width:6px;height:6px;border-radius:50%;background:var(--pulse);margin-top:9px}
.level-foot{display:flex;align-items:center;justify-content:space-between;margin-top:20px;padding-top:18px;border-top:1px solid var(--line)}
.level-foot .price{font-family:var(--font-mono);font-size:17px;color:var(--gold);letter-spacing:.04em}
.level-foot .price.is-free{color:var(--primary-ink)}
/* ================= 专属内容预览 ================= */
.preview-scroller{
  display:flex;gap:22px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding-bottom:14px;scrollbar-width:none;-ms-overflow-style:none;
}
.preview-scroller::-webkit-scrollbar{display:none}
.preview-card{
  position:relative;flex:0 0 320px;scroll-snap-align:start;
  border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);
  background:var(--glass);transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.preview-card:hover{transform:translateY(-6px);border-color:var(--line-hi);box-shadow:0 18px 40px rgba(0,0,0,.5)}
.preview-cover{position:relative;height:180px;overflow:hidden}
.preview-cover img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .4s ease}
.preview-card:hover .preview-cover img{transform:scale(1.04)}
.preview-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,10,18,0) 35%,rgba(7,10,18,.92))}
.preview-body{position:absolute;left:18px;right:18px;bottom:16px;z-index:2}
.preview-body h3{font-size:17px;font-weight:700;line-height:1.4;color:#fff}
.preview-meta{display:flex;align-items:center;gap:8px;margin-top:10px}
.preview-tagline{font-size:13px;color:var(--text-2);padding:14px 18px 18px;line-height:1.7}
/* ================= 最新信息 / 资讯列表 ================= */
.news-layout{display:grid;grid-template-columns:200px 1fr;gap:32px}
.news-tabs{display:flex;flex-direction:column;gap:6px;position:sticky;top:96px;align-self:start}
.news-tab{
  display:block;padding:10px 14px;border-radius:10px;font-size:14px;color:var(--text-2);
  border:1px solid transparent;transition:all .2s ease;
}
.news-tab:hover{color:var(--text);border-color:var(--line)}
.news-tab.is-active{color:var(--text);background:linear-gradient(135deg,rgba(46,107,255,.2),rgba(22,224,200,.12));border-color:rgba(46,107,255,.4)}
.news-lead{
  border-radius:var(--r-card);border:1px solid var(--line);background:var(--glass);
  overflow:hidden;transition:border-color .22s ease,transform .22s ease;
}
.news-lead:hover{border-color:var(--line-hi);transform:translateY(-4px)}
.news-lead a{display:grid;grid-template-columns:300px 1fr;gap:0;height:100%}
.news-lead-cover{display:block;overflow:hidden;height:100%;min-height:210px}
.news-lead-cover img{width:100%;height:100%;object-fit:cover;border-radius:0}
.news-lead-body{display:flex;flex-direction:column;gap:12px;padding:24px}
.news-lead-title{font-size:21px;font-weight:700;line-height:1.5;color:var(--text)}
.news-lead-sum{font-size:14px;line-height:1.8;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;gap:12px;margin-top:auto;font-size:13px;color:var(--text-3)}
.news-rows{margin-top:22px;border-top:1px solid var(--line)}
.news-row{border-bottom:1px solid var(--line)}
.news-row a{display:grid;grid-template-columns:200px 1fr 34px;gap:20px;align-items:center;padding:18px 0;transition:background .2s ease}
.news-row a:hover{background:rgba(255,255,255,.025)}
.news-row-cover{display:block;width:200px;height:120px;border-radius:12px;overflow:hidden;border:1px solid rgba(255,255,255,.06)}
.news-row-cover img{width:100%;height:100%;object-fit:cover;border-radius:0}
.news-row-body{display:flex;flex-direction:column;gap:8px;min-width:0}
.news-row-title{font-size:18px;line-height:1.5;font-weight:600;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-row a:hover .news-row-title{color:var(--pulse)}
.news-row-sum{font-size:14px;line-height:1.75;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-row-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--text-3)}
.news-row-arrow{color:var(--text-3);font-size:18px;justify-self:end;transition:transform .2s ease,color .2s ease}
.news-row a:hover .news-row-arrow{color:var(--pulse);transform:translateX(4px)}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-card);background:var(--glass);
  padding:56px 24px;text-align:center;
}
.empty-state .empty-ico{
  width:56px;height:56px;margin:0 auto 18px;border-radius:16px;display:grid;place-items:center;
  background:rgba(46,107,255,.12);border:1px solid var(--line);color:var(--primary-ink);
}
.empty-state p{font-size:15px;color:var(--text-2);margin-bottom:20px}
/* ================= FAQ ================= */
.faq-list{border-top:1px solid var(--line)}
.faq-item{position:relative;border-bottom:1px solid var(--line);transition:background .2s ease}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--pulse);
  transform:scaleY(0);transform-origin:top;transition:transform .28s ease;
}
.faq-item.is-open::before{transform:scaleY(1)}
.faq-item.is-open{background:rgba(255,255,255,.02)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:24px 20px 24px 24px;text-align:left;font-size:17px;font-weight:600;color:var(--text);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--pulse)}
.faq-ico{
  width:28px;height:28px;flex-shrink:0;border-radius:8px;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--primary-ink);transition:transform .28s ease,border-color .25s ease,color .25s ease;
}
.faq-item.is-open .faq-ico{transform:rotate(45deg);border-color:rgba(22,224,200,.5);color:var(--pulse)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s ease}
.faq-item.is-open .faq-a{grid-template-rows:1fr}
.faq-a>div{overflow:hidden}
.faq-a p{font-size:15px;line-height:1.85;color:var(--text-2);max-width:760px;padding:0 60px 26px 24px}
/* ================= CTA 区块 ================= */
.cta-panel{
  position:relative;overflow:hidden;border-radius:var(--r-block);
  border:1px solid var(--line);background:linear-gradient(120deg,rgba(18,32,51,.9),rgba(12,17,29,.9));
  box-shadow:var(--shadow-card);
  display:grid;grid-template-columns:1.25fr .75fr;gap:48px;align-items:center;
  padding:52px;
}
.cta-panel::after{
  content:"";position:absolute;width:520px;height:520px;right:-160px;top:-200px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,107,255,.35),transparent 70%);filter:blur(70px);pointer-events:none;
}
.cta-copy{position:relative;z-index:2}
.cta-copy h2{font-size:32px;line-height:1.3;font-weight:700}
.cta-copy p{font-size:15px;color:var(--text-2);margin-top:14px;max-width:32em}
.cta-points{display:grid;gap:12px;margin-top:24px}
.cta-points li{
  font-size:14px;color:var(--text-2);padding-left:16px;position:relative;line-height:1.75;
}
.cta-points li::before{content:"";position:absolute;left:0;top:9px;width:2px;height:14px;background:var(--pulse);border-radius:2px}
.price-card{
  position:relative;z-index:2;border-radius:var(--r-card);
  border:1px solid rgba(255,194,75,.45);background:rgba(12,17,29,.85);
  box-shadow:0 0 44px rgba(255,194,75,.16);padding:30px;
}
.price-card .pc-label{font-size:13px;color:var(--gold);letter-spacing:.08em;font-family:var(--font-mono)}
.price-card .pc-price{display:flex;align-items:baseline;gap:8px;margin-top:14px}
.price-card .pc-price b{font-family:var(--font-mono);font-size:40px;color:#fff;letter-spacing:.02em;line-height:1}
.price-card .pc-price span{font-size:14px;color:var(--text-3)}
.price-card ul{margin:22px 0 24px;display:grid;gap:10px}
.price-card ul li{font-size:14px;color:var(--text-2);display:flex;gap:10px;align-items:flex-start}
.price-card ul li::before{content:"✦";color:var(--gold);font-size:12px;line-height:1.9}
.price-card .btn{width:100%}
.price-card .pc-note{font-size:12px;color:var(--text-3);margin-top:12px;text-align:center}
/* ================= 页脚 ================= */
.site-footer{border-top:1px solid var(--line);background:rgba(9,13,23,.85);margin-top:0}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;
  padding:64px 32px 44px;max-width:var(--cr);margin:0 auto;
}
.footer-desc{font-size:14px;line-height:1.85;color:var(--text-3);margin-top:18px;max-width:30em}
.footer-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px;letter-spacing:.02em}
.footer-links{display:grid;gap:12px}
.footer-links a{font-size:14px;color:var(--text-3)}
.footer-links a:hover{color:var(--pulse)}
.footer-bar{border-top:1px solid var(--line);padding:20px 0}
.footer-bar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--text-3)}
/* ================= 抽屉导航 ================= */
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.6);backdrop-filter:blur(6px);
  opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:84%;max-width:360px;z-index:95;
  background:rgba(10,15,26,.98);border-right:1px solid var(--line);
  transform:translateX(-102%);transition:transform .3s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--line)}
.drawer-nav{padding:18px 20px;display:grid;gap:8px;overflow-y:auto;flex:1}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 16px;border-radius:12px;border:1px solid transparent;
  font-size:15px;color:var(--text-2);background:var(--glass);transition:all .2s ease;
}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--text);border-color:rgba(22,224,200,.4)}
.drawer-nav a.is-active{background:linear-gradient(135deg,rgba(46,107,255,.22),rgba(22,224,200,.14))}
.drawer-foot{padding:18px 20px 24px;border-top:1px solid var(--line)}
.drawer-foot .btn{width:100%}
/* ================= 进场动画 ================= */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
}
/* ================= 响应式 ================= */
@media (max-width:1280px){
  .hero h1{font-size:46px}
  .sec-title{font-size:32px}
}
@media (max-width:1024px){
  .container{padding:0 24px}
  .section{padding:72px 0}
  .nav-chips{display:none}
  .hamburger{display:grid}
  .nav-wrap{justify-content:space-between}
  .hero-inner{grid-template-columns:1fr;gap:40px;padding-top:56px;padding-bottom:48px}
  .hero h1{font-size:38px;max-width:none}
  .hero{min-height:auto}
  .hero-glow{display:none}
  .hero-bar{grid-template-columns:repeat(2,1fr)}
  .hero-bar-item:nth-child(3){border-left:0;padding-left:0}
  .hero-bar-item:nth-child(3),.hero-bar-item:nth-child(4){border-top:1px solid var(--line)}
  .trust-grid{grid-template-columns:repeat(2,1fr);gap:20px 0}
  .trust-item:nth-child(3){border-left:0;padding-left:0}
  .news-layout{grid-template-columns:1fr}
  .news-tabs{flex-direction:row;overflow-x:auto;position:static;padding-bottom:6px;scrollbar-width:none}
  .news-tabs::-webkit-scrollbar{display:none}
  .news-tab{white-space:nowrap}
  .cta-panel{grid-template-columns:1fr;gap:36px;padding:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:56px 24px 36px}
  .level-card,.level-item:nth-child(2) .level-card,.level-item:nth-child(3) .level-card{width:100%;margin-left:0}
  .level-track{padding-left:44px}
  .level-track::before{left:14px}
  .level-dot{left:-36px}
  .search-form{padding:18px 24px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .sec-head{margin-bottom:32px}
  .sec-title{font-size:24px}
  .sec-desc{font-size:14px}
  .hero h1{font-size:30px;line-height:1.24}
  .hero-sub{font-size:16px}
  .hero-cta{gap:12px}
  .hero-cta .btn{flex:1 1 46%;padding:0 18px}
  .hero-card{padding:22px}
  .hero-card-stats{grid-template-columns:repeat(3,1fr)}
  .hero-card-stats div{padding-left:12px}
  .hero-bar-item{padding:16px 16px}
  .trust-grid{grid-template-columns:1fr}
  .trust-item{border-left:0;padding:12px 0;border-top:1px solid var(--line)}
  .trust-item:first-child{border-top:0}
  .compare-table-wrap{display:none}
  .compare-cards{display:grid;gap:18px}
  .compare-card{
    border-radius:var(--r-card);border:1px solid var(--line);background:var(--glass);
    padding:22px;box-shadow:var(--shadow-card);
  }
  .compare-card.is-rec{border-color:rgba(255,194,75,.45);box-shadow:0 0 30px rgba(255,194,75,.12)}
  .compare-card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line)}
  .compare-card-head h3{font-size:18px;font-weight:700}
  .compare-card dl{margin-top:16px;display:grid;gap:12px}
  .compare-card dt{font-size:13px;color:var(--text-3)}
  .compare-card dd{margin:2px 0 0;font-size:14px;color:var(--text-2);font-family:var(--font-mono);letter-spacing:.02em}
  .news-lead a{grid-template-columns:1fr}
  .news-lead-cover{min-height:180px;height:180px}
  .news-row a{grid-template-columns:108px 1fr;gap:14px;align-items:flex-start}
  .news-row-cover{width:108px;height:78px}
  .news-row-arrow{display:none}
  .news-row-title{font-size:16px}
  .news-row-sum{-webkit-line-clamp:2}
  .faq-q{font-size:15px;padding:20px 16px}
  .faq-a p{padding:0 20px 22px 16px}
  .cta-panel{padding:28px}
  .cta-copy h2{font-size:24px}
  .footer-grid{grid-template-columns:1fr;padding:44px 16px 28px}
  .footer-bar-inner{flex-direction:column;align-items:flex-start;gap:8px}
  .search-field input{height:40px}
}
@media (max-width:520px){
  .brand-text{font-size:15px}
  .hero h1{font-size:27px}
  .hero-card-top{flex-direction:column;align-items:flex-start;gap:16px}
  .hero-card-stats{grid-template-columns:repeat(3,1fr);gap:0}
  .hero-bar{grid-template-columns:repeat(2,1fr)}
  .btn{height:44px;padding:0 20px;font-size:14px}
  .preview-card{flex:0 0 260px}
  .sec-link{font-size:13px}
}

/* roulang page: article */
:root{
  --bg-base:#070A12;
  --layer-1:#0C111D;
  --layer-2:#122033;
  --glass:rgba(255,255,255,.055);
  --primary:#2E6BFF;
  --primary-ink:#7FB3FF;
  --pulse:#16E0C8;
  --gold:#FFC24B;
  --line:rgba(120,160,255,.14);
  --text:#F2F6FF;
  --text-2:#A6B4CC;
  --text-3:#6C7A94;
  --danger:#FF5A6E;
  --radius-card:16px;
  --radius-block:24px;
  --radius-btn:12px;
  --shadow-card:0 12px 32px rgba(0,0,0,.45),inset 0 1px 0 rgba(255,255,255,.06);
  --mono:"JetBrains Mono","Inter","SFMono-Regular",Consolas,"Liberation Mono",monospace;
  --space-section:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--pulse);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(46,107,255,.4);color:#fff;}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:#0A0E18;}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,rgba(46,107,255,.6),rgba(22,224,200,.45));border-radius:999px;border:2px solid #0A0E18;}

.container{max-width:1280px;margin:0 auto;padding:0 32px;width:100%;}
.mono{font-family:var(--mono);letter-spacing:.08em;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  border-bottom:1px solid transparent;
  transition:background .28s ease,border-color .28s ease,backdrop-filter .28s ease;
}
.site-header.is-scrolled{
  background:rgba(7,10,18,.78);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom-color:var(--line);
}
.header-inner{display:flex;align-items:center;gap:28px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#2E6BFF,#16E0C8);
  box-shadow:0 0 20px rgba(46,107,255,.45);
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.02em;white-space:nowrap;}
.nav-chips{
  display:flex;align-items:center;gap:8px;flex:1 1 auto;
  overflow-x:auto;scrollbar-width:none;
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 24px,#000 calc(100% - 24px),transparent 100%);
  mask-image:linear-gradient(90deg,transparent 0,#000 24px,#000 calc(100% - 24px),transparent 100%);
  padding:6px 0;
}
.nav-chips::-webkit-scrollbar{display:none;}
.chip{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border-radius:999px;font-size:14px;color:var(--text-2);
  background:var(--glass);border:1px solid var(--line);
  white-space:nowrap;transition:color .2s ease,border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.chip:hover{color:var(--text);border-color:rgba(22,224,200,.5);}
.chip.is-active{
  color:var(--text);
  background:linear-gradient(135deg,rgba(46,107,255,.22),rgba(22,224,200,.14));
  border-color:rgba(22,224,200,.5);
  box-shadow:0 0 18px rgba(22,224,200,.16),inset 0 -2px 0 rgba(22,224,200,.7);
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.icon-btn{
  width:40px;height:40px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--glass);border:1px solid var(--line);color:var(--text-2);cursor:pointer;
  transition:color .2s ease,border-color .2s ease,transform .2s ease;
}
.icon-btn:hover{color:var(--text);border-color:rgba(22,224,200,.5);transform:translateY(-1px);}
.icon-btn svg{width:18px;height:18px;}
.menu-btn{display:none;}

/* ---------- 按钮体系 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease,border-color .2s ease,background .2s ease;
}
.btn svg{width:16px;height:16px;}
.btn-primary{background:linear-gradient(135deg,#2E6BFF,#1F4FD6);color:#fff;box-shadow:0 0 24px rgba(46,107,255,.45);}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 0 40px rgba(46,107,255,.6);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 16px rgba(46,107,255,.4);}
.btn-gold{background:var(--gold);color:#1A1206;box-shadow:0 0 22px rgba(255,194,75,.3);}
.btn-gold:hover{filter:brightness(1.06);box-shadow:0 0 38px rgba(255,194,75,.5);transform:translateY(-2px);}
.btn-gold:active{transform:translateY(0);box-shadow:0 0 14px rgba(255,194,75,.32);}
.btn-ghost{background:rgba(255,255,255,.05);border-color:var(--line);color:var(--text);}
.btn-ghost:hover{border-color:rgba(22,224,200,.5);transform:translateY(-2px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}
[disabled],.is-disabled{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none;}

/* ---------- 标签与徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:999px;
  font-size:12px;line-height:1;letter-spacing:.04em;white-space:nowrap;
}
.badge-gold{background:rgba(255,194,75,.16);color:var(--gold);border:1px solid rgba(255,194,75,.45);}
.badge-new{background:rgba(22,224,200,.14);color:var(--pulse);border:1px solid rgba(22,224,200,.42);}
.badge-line{background:var(--glass);color:var(--text-2);border:1px solid var(--line);}
.tag-chip{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;font-size:13px;
  color:var(--text-2);background:var(--glass);border:1px solid var(--line);transition:.2s ease;
}
.tag-chip:hover{color:var(--text);border-color:rgba(22,224,200,.5);}

/* ---------- 面包屑 ---------- */
.crumb-wrap{padding-top:28px;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-3);flex-wrap:wrap;}
.breadcrumb a{color:var(--text-2);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--pulse);}
.breadcrumb .sep{color:#33405A;}
.breadcrumb .current{color:var(--text-3);max-width:46ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章布局 ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;
  padding-top:28px;padding-bottom:96px;align-items:start;
}
.article-main{min-width:0;}
.article-head{padding-bottom:26px;border-bottom:1px solid var(--line);}
.article-badges{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:16px;}
.article-head h1{
  font-size:34px;line-height:1.44;font-weight:700;letter-spacing:.01em;color:#fff;
}
.article-meta{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  margin-top:18px;font-size:13px;color:var(--text-3);font-family:var(--mono);letter-spacing:.04em;
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:8px;}
.article-meta .meta-item + .meta-item::before{
  content:"";width:4px;height:4px;border-radius:50%;background:#3B4A66;display:inline-block;margin-right:6px;
}
.article-meta time{color:var(--text-2);}

/* ---------- 正文排版 ---------- */
.article-body{max-width:760px;padding-top:34px;font-size:16px;line-height:1.85;color:#DCE5F5;}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 20px;}
.article-body h2{
  position:relative;font-size:26px;line-height:1.5;font-weight:700;color:#fff;
  margin:44px 0 16px;padding-left:14px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--pulse),rgba(22,224,200,.15));
}
.article-body h3{font-size:21px;line-height:1.55;font-weight:700;color:#fff;margin:32px 0 12px;}
.article-body h4{font-size:17px;font-weight:700;color:#E6EEFF;margin:24px 0 10px;}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:4px;}
.article-body ul li,.article-body ol li{
  position:relative;padding-left:20px;margin-bottom:10px;color:#D2DDF0;
}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:6px;height:6px;border-radius:2px;
  background:var(--pulse);box-shadow:0 0 10px rgba(22,224,200,.6);
}
.article-body ol{counter-reset:olist;}
.article-body ol li{counter-increment:olist;}
.article-body ol li::before{
  content:counter(olist,decimal-leading-zero);
  position:absolute;left:0;top:0;font-family:var(--mono);font-size:13px;color:var(--pulse);letter-spacing:.06em;
}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;border-radius:14px;
  background:var(--glass);border:1px solid var(--line);border-left:3px solid var(--pulse);
  color:#CBD8EE;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body a{
  color:var(--primary-ink);text-decoration:underline;text-underline-offset:4px;
  text-decoration-color:rgba(127,179,255,.45);transition:color .2s ease,text-decoration-color .2s ease;
}
.article-body a:hover{color:var(--pulse);text-decoration-color:rgba(22,224,200,.7);}
.article-body img{border-radius:12px;border:1px solid rgba(255,255,255,.06);margin:24px auto;height:auto;}
.article-body figure{margin:26px 0;}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px;}
.article-body table{
  width:100%;border-collapse:collapse;margin:26px 0;font-size:14,5px;
  border:1px solid var(--line);border-radius:12px;overflow:hidden;
}
.article-body thead th{
  background:rgba(255,255,255,.05);color:var(--text);font-weight:600;
  text-align:left;padding:12px 16px;font-size:14px;border-bottom:1px solid var(--line);
}
.article-body tbody td{padding:12px 16px;color:#D2DDF0;border-bottom:1px solid rgba(120,160,255,.08);font-size:14.5px;}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.022);}
.article-body tbody tr:last-child td{border-bottom:0;}
.article-body pre{
  background:var(--layer-1);border:1px solid var(--line);border-radius:12px;
  padding:18px 20px;overflow-x:auto;margin:24px 0;
  font-family:var(--mono);font-size:13.5px;line-height:1.7;color:#BFD2F5;
}
.article-body code{
  font-family:var(--mono);font-size:13.5px;background:rgba(46,107,255,.14);
  border:1px solid rgba(46,107,255,.22);border-radius:6px;padding:2px 6px;color:#BBD4FF;
}
.article-body pre code{background:none;border:0;padding:0;color:inherit;}
.article-body hr{border:0;height:1px;background:var(--line);margin:36px 0;}

/* ---------- 空态 ---------- */
.empty-state{
  margin:8px 0 0;padding:48px 32px;border-radius:var(--radius-card);
  background:var(--glass);border:1px solid var(--line);text-align:center;
  box-shadow:var(--shadow-card);
}
.empty-state .empty-icon{
  width:56px;height:56px;margin:0 auto 18px;border-radius:16px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(22,224,200,.1);border:1px solid rgba(22,224,200,.3);
}
.empty-state .empty-icon svg{width:26px;height:26px;stroke:var(--pulse);}
.empty-state h3{font-size:20px;color:#fff;margin-bottom:10px;}
.empty-state p{font-size:14.5px;color:var(--text-2);margin-bottom:22px;}

/* ---------- 文章尾部 ---------- */
.article-foot{max-width:760px;padding-top:40px;margin-top:44px;border-top:1px solid var(--line);}
.foot-label{font-size:13px;color:var(--text-3);letter-spacing:.08em;font-family:var(--mono);margin-bottom:14px;text-transform:uppercase;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;}
.disclaimer{
  margin-top:26px;padding:16px 18px;border-radius:12px;
  background:rgba(255,255,255,.03);border:1px solid var(--line);
  font-size:12.5px;line-height:1.8;color:var(--text-3);
}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:32px;}
.pager-card{
  display:block;padding:20px;border-radius:var(--radius-card);
  background:var(--glass);border:1px solid var(--line);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.pager-card:hover{transform:translateY(-4px);border-color:rgba(22,224,200,.5);box-shadow:var(--shadow-card);}
.pager-card .dir{font-size:12px;color:var(--text-3);font-family:var(--mono);letter-spacing:.1em;}
.pager-card strong{display:block;margin-top:8px;font-size:15.5px;color:#fff;font-weight:600;line-height:1.6;}
.pager-card.next{text-align:right;}

/* ---------- 相关推荐 ---------- */
.related{margin-top:72px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;}
.section-head h2{font-size:24px;font-weight:700;color:#fff;letter-spacing:.01em;}
.section-head .sub{font-size:14px;color:var(--text-3);margin-top:6px;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--primary-ink);
  transition:color .2s ease,gap .2s ease;
}
.text-link:hover{color:var(--pulse);gap:10px;}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.content-card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--radius-card);background:var(--glass);border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.content-card:hover{transform:translateY(-6px);border-color:rgba(22,224,200,.45);}
.content-card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;}
.content-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.content-card:hover .thumb img{transform:scale(1.05);}
.content-card .thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,10,18,0) 45%,rgba(7,10,18,.85) 100%);
}
.content-card .thumb .badge{position:absolute;left:12px;top:12px;z-index:2;}
.content-card .card-body{padding:18px 20px 20px;}
.content-card h3{font-size:16.5px;line-height:1.6;color:#fff;font-weight:600;margin-bottom:10px;}
.content-card p{font-size:14px;line-height:1.75;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.content-card .card-meta{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:16px;padding-top:14px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--text-3);font-family:var(--mono);letter-spacing:.06em;
}

/* ---------- 侧栏 ---------- */
.article-side{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px;}
.side-card{
  padding:22px 20px;border-radius:var(--radius-card);
  background:var(--glass);border:1px solid var(--line);box-shadow:var(--shadow-card);
}
.side-title{
  font-size:13px;font-family:var(--mono);letter-spacing:.1em;color:var(--text-3);
  text-transform:uppercase;margin-bottom:14px;
}
.side-list li + li{border-top:1px solid rgba(120,160,255,.1);}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 0;font-size:14.5px;color:var(--text-2);transition:color .2s ease,padding-left .2s ease;
}
.side-list a:hover{color:var(--pulse);padding-left:6px;}
.side-list a span.num{font-family:var(--mono);font-size:12px;color:#3F4E6B;letter-spacing:.08em;}
.side-card-gold{
  background:linear-gradient(150deg,rgba(255,194,75,.14),rgba(255,194,75,.03));
  border-color:rgba(255,194,75,.38);
}
.side-card-gold h3{font-size:17px;color:#fff;font-weight:700;margin-bottom:8px;}
.side-card-gold p{font-size:13.5px;line-height:1.75;color:#D9C9A8;margin-bottom:16px;}
.side-note{font-size:12px;color:rgba(255,194,75,.75);margin-top:12px;line-height:1.7;}
.ring-wrap{display:flex;align-items:center;gap:14px;margin-bottom:16px;}
.ring{
  width:56px;height:56px;border-radius:50%;flex:0 0 auto;position:relative;
  background:conic-gradient(var(--gold) 0deg 252deg,rgba(255,255,255,.1) 252deg 360deg);
}
.ring::after{
  content:"";position:absolute;inset:6px;border-radius:50%;background:#0C111D;
}
.ring b{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:12.5px;color:var(--gold);z-index:2;letter-spacing:.02em;
}
.ring-text strong{display:block;font-size:14.5px;color:#fff;}
.ring-text span{font-size:12.5px;color:var(--text-3);font-family:var(--mono);}

/* ---------- 会员 CTA ---------- */
.member-cta{
  position:relative;overflow:hidden;margin-top:72px;
  border-radius:var(--radius-block);border:1px solid var(--line);
  background:linear-gradient(135deg,rgba(12,17,29,.95),rgba(18,32,51,.9));
  box-shadow:var(--shadow-card);
}
.member-cta::before{
  content:"";position:absolute;width:520px;height:520px;right:-160px;top:-220px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,194,75,.18),transparent 65%);
}
.member-cta::after{
  content:"";position:absolute;width:420px;height:420px;left:-140px;bottom:-220px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,107,255,.22),transparent 68%);
}
.member-cta-inner{
  position:relative;z-index:2;display:grid;grid-template-columns:1.25fr .85fr;gap:48px;
  padding:52px 48px;align-items:center;
}
.member-cta h2{font-size:30px;line-height:1.4;color:#fff;font-weight:700;margin-bottom:18px;}
.member-cta ul li{
  position:relative;padding-left:20px;margin-bottom:10px;font-size:15px;color:var(--text-2);
}
.member-cta ul li::before{
  content:"";position:absolute;left:0;top:.62em;width:3px;height:14px;border-radius:2px;
  background:var(--pulse);box-shadow:0 0 10px rgba(22,224,200,.6);
}
.price-card{
  padding:28px 26px;border-radius:20px;
  background:rgba(7,10,18,.72);border:1px solid rgba(255,194,75,.45);
  box-shadow:0 0 34px rgba(255,194,75,.16);
}
.price-card .plan{font-size:13px;font-family:var(--mono);letter-spacing:.12em;color:var(--gold);}
.price-card .amount{
  display:flex;align-items:baseline;gap:6px;margin:12px 0 4px;
  font-family:var(--mono);color:#fff;
}
.price-card .amount b{font-size:38px;font-weight:700;letter-spacing:.02em;}
.price-card .amount span{font-size:14px;color:var(--text-3);}
.price-card .desc{font-size:13.5px;color:var(--text-3);margin-bottom:20px;}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:96px;border-top:1px solid var(--line);background:#05080F;}
.footer-grid{
  max-width:1280px;margin:0 auto;padding:56px 32px 40px;
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;
}
.footer-desc{font-size:13.5px;line-height:1.85;color:var(--text-3);margin-top:16px;max-width:34ch;}
.footer-title{font-size:13px;font-family:var(--mono);letter-spacing:.1em;color:var(--text-2);margin-bottom:16px;text-transform:uppercase;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:var(--text-3);transition:color .2s ease,padding-left .2s ease;}
.footer-links a:hover{color:var(--pulse);padding-left:5px;}
.footer-bar{border-top:1px solid var(--line);}
.footer-bar-inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:20px;padding-bottom:20px;font-size:12.5px;color:#4C5975;
}

/* ---------- 移动端抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.6);backdrop-filter:blur(4px);
  opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;left:0;height:100%;width:84%;max-width:340px;z-index:100;
  background:#080C15;border-right:1px solid var(--line);
  transform:translateX(-100%);transition:transform .3s ease;
  display:flex;flex-direction:column;padding:22px 20px 26px;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;}
.drawer-group-title{font-size:12px;font-family:var(--mono);letter-spacing:.12em;color:var(--text-3);margin:18px 0 10px;}
.drawer-nav a{
  display:block;padding:13px 14px;border-radius:12px;font-size:15px;color:var(--text-2);
  border:1px solid transparent;transition:.2s ease;
}
.drawer-nav a:hover,.drawer-nav a.is-active{
  color:#fff;background:rgba(46,107,255,.14);border-color:rgba(22,224,200,.35);
}
.drawer-foot{margin-top:auto;padding-top:20px;}

/* ---------- 进场动画 ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease;}
.reveal.is-in{opacity:1;transform:translateY(0);}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{--space-section:72px;}
  .container{padding:0 24px;}
  .article-layout{grid-template-columns:1fr;gap:36px;padding-bottom:72px;}
  .article-side{position:static;}
  .member-cta-inner{grid-template-columns:1fr;gap:32px;padding:40px 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 24px 32px;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .header-inner{height:60px;gap:12px;}
  .nav-chips{display:none;}
  .menu-btn{display:inline-flex;}
  .header-actions .icon-btn{display:none;}
  .brand-text{font-size:15.5px;}
  .header-actions .btn-sm{height:36px;padding:0 14px;font-size:13px;}
  .crumb-wrap{padding-top:20px;}
  .breadcrumb{font-size:13px;}
  .breadcrumb .current{max-width:24ch;}
  .article-head h1{font-size:26px;line-height:1.5;}
  .article-body{font-size:15.5px;line-height:1.8;max-width:100%;}
  .article-body h2{font-size:21px;margin:34px 0 14px;}
  .article-body h3{font-size:18px;}
  .article-body table{font-size:13.5px;}
  .article-body thead th,.article-body tbody td{padding:10px 12px;}
  .pager{grid-template-columns:1fr;}
  .pager-card.next{text-align:left;}
  .related{margin-top:52px;}
  .related-grid{grid-template-columns:1fr;gap:18px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .member-cta{margin-top:52px;}
  .member-cta-inner{padding:32px 20px;}
  .member-cta h2{font-size:22px;}
  .price-card{padding:22px 20px;}
  .price-card .amount b{font-size:32px;}
  .site-footer{margin-top:64px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:40px 16px 28px;}
  .footer-bar-inner{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (max-width:520px){
  .article-head h1{font-size:23px;}
  .article-meta{font-size:12px;gap:10px;}
  .article-badges{margin-bottom:12px;}
  .btn{height:44px;padding:0 20px;font-size:14.5px;}
}

/* roulang page: category1 */
/* ============ 设计令牌 ============ */
:root{
  --bg-base:#070A12;
  --bg-1:#0C111D;
  --bg-2:#122033;
  --glass:rgba(255,255,255,.055);
  --glass-strong:rgba(255,255,255,.085);
  --primary:#2E6BFF;
  --primary-ink:#7FB3FF;
  --pulse:#16E0C8;
  --gold:#FFC24B;
  --gold-ink:#1A1206;
  --line:rgba(120,160,255,.14);
  --line-tint:rgba(255,255,255,.06);
  --line-cyan:rgba(22,224,200,.45);
  --text:#F2F6FF;
  --text-2:#A6B4CC;
  --text-3:#6C7A94;
  --danger:#FF5A6E;
  --r-card:16px;
  --r-block:24px;
  --r-btn:12px;
  --r-chip:999px;
  --shadow-card:0 12px 32px rgba(0,0,0,.45), inset 0 1px 0 rgba(255,255,255,.06);
  --shadow-float:0 18px 44px rgba(0,0,0,.55), inset 0 1px 0 rgba(255,255,255,.08);
  --sans:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,"JetBrains Mono","Courier New",monospace;
  --ease:200ms cubic-bezier(.4,0,.2,1);
  --pad-x:32px;
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:104px;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
body.is-locked{overflow:hidden;}
img{max-width:100%;display:block;border-radius:12px;border:1px solid var(--line-tint);}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background var(--ease),opacity var(--ease);}
button,input{font-family:inherit;font-size:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em;line-height:1.3;}
p{margin:0;}
::selection{background:rgba(22,224,200,.3);color:#fff;}
:focus-visible{outline:2px solid var(--pulse);outline-offset:2px;border-radius:6px;}

/* 滚动条 */
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:#0a0e18;}
::-webkit-scrollbar-thumb{background:rgba(120,160,255,.22);border-radius:999px;border:2px solid #0a0e18;}
::-webkit-scrollbar-thumb:hover{background:rgba(22,224,200,.4);}

/* ============ 通用容器与排版 ============ */
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 var(--pad-x);}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:.08em;}
.text-2{color:var(--text-2);}
.section{padding:0 0 64px;}
.section-head{display:flex;gap:18px;align-items:flex-start;margin-bottom:28px;}
.section-num{
  font-family:var(--mono);
  font-size:14px;
  letter-spacing:.08em;
  color:var(--pulse);
  padding-top:8px;
  min-width:36px;
  position:relative;
}
.section-num::after{
  content:"";
  position:absolute;left:0;top:36px;width:22px;height:1px;background:linear-gradient(90deg,var(--pulse),transparent);
}
.section-head h2{font-size:32px;line-height:1.35;}
.section-sub{margin-top:8px;color:var(--text-2);font-size:15px;line-height:1.8;max-width:720px;}
.divider-1px{height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent);}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(7,10,18,.55);
  border-bottom:1px solid transparent;
  transition:background var(--ease),border-color var(--ease),backdrop-filter var(--ease);
}
.site-header.is-scrolled{
  background:rgba(7,10,18,.78);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom-color:var(--line);
}
.header-inner{display:flex;align-items:center;gap:20px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,#2E6BFF,#16E0C8);
  box-shadow:0 0 18px rgba(46,107,255,.45);
  flex-shrink:0;
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.01em;white-space:nowrap;}
.brand:hover .brand-text{color:var(--primary-ink);}

.nav-chips{
  display:flex;align-items:center;gap:10px;
  overflow-x:auto;flex:1;min-width:0;
  scrollbar-width:none;-ms-overflow-style:none;
  padding:4px 2px;
}
.nav-chips::-webkit-scrollbar{display:none;}
.chip{
  position:relative;
  display:inline-flex;align-items:center;
  height:36px;padding:0 16px;
  border-radius:var(--r-chip);
  font-size:14px;color:var(--text-2);
  background:var(--glass);
  border:1px solid var(--line);
  white-space:nowrap;
  transition:color var(--ease),border-color var(--ease),background var(--ease),box-shadow var(--ease);
}
.chip:hover{color:var(--text);border-color:var(--line-cyan);}
.chip.is-active{
  color:var(--text);
  background:linear-gradient(180deg,rgba(46,107,255,.2),rgba(22,224,200,.1));
  border-color:rgba(46,107,255,.55);
  box-shadow:0 0 18px rgba(46,107,255,.25);
}
.chip.is-active::after{
  content:"";position:absolute;left:18%;right:18%;bottom:-1px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--pulse));
}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.icon-btn{
  width:38px;height:38px;border-radius:10px;
  display:grid;place-items:center;
  border:1px solid var(--line);background:var(--glass);
  color:var(--text-2);transition:all var(--ease);
}
.icon-btn:hover{color:var(--text);border-color:var(--line-cyan);}
.icon-btn svg{width:18px;height:18px;}
.hamburger{
  display:none;width:38px;height:38px;border-radius:10px;
  border:1px solid var(--line);background:var(--glass);
  place-items:center;color:var(--text);
}
.hamburger svg{width:18px;height:18px;}

/* ============ 按钮体系 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),filter var(--ease);
}
.btn svg{width:16px;height:16px;}
.btn-primary{
  background:linear-gradient(135deg,#2E6BFF,#16E0C8);
  color:#04101F;
  box-shadow:0 0 24px rgba(46,107,255,.45);
}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 0 40px rgba(46,107,255,.6);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 16px rgba(46,107,255,.35);}
.btn-gold{
  background:var(--gold);
  color:var(--gold-ink);
  box-shadow:0 0 22px rgba(255,194,75,.32);
}
.btn-gold:hover{filter:brightness(1.06);box-shadow:0 0 40px rgba(255,194,75,.5);transform:translateY(-2px);}
.btn-gold:active{transform:translateY(0);box-shadow:0 0 14px rgba(255,194,75,.3);}
.btn-ghost{
  background:var(--glass);
  border-color:var(--line);
  color:var(--text);
}
.btn-ghost:hover{border-color:var(--line-cyan);background:var(--glass-strong);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}
.btn[disabled]{opacity:.45;box-shadow:none;cursor:not-allowed;}

/* 徽章 */
.badge{
  display:inline-flex;align-items:center;height:22px;padding:0 10px;
  border-radius:var(--r-chip);font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge-gold{background:rgba(255,194,75,.16);color:var(--gold);border:1px solid rgba(255,194,75,.45);}
.badge-cyan{background:rgba(22,224,200,.14);color:var(--pulse);border:1px solid rgba(22,224,200,.4);}
.badge-glass{background:var(--glass);color:var(--text-2);border:1px solid var(--line);}

.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--r-chip);font-size:12px;color:var(--text-2);
  background:var(--glass);border:1px solid var(--line);
  font-family:var(--mono);letter-spacing:.04em;
}

/* ============ 页面首屏 ============ */
.page-hero{
  position:relative;overflow:hidden;
  min-height:320px;display:flex;align-items:center;
  border-bottom:1px solid var(--line);
  padding:56px 0;
}
.hero-bg{
  position:absolute;inset:0;
  background:url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
  transform:scale(1.02);
}
.hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,10,18,.82) 0%,rgba(7,10,18,.96) 100%);
}
.hero-spot{
  position:absolute;width:620px;height:620px;border-radius:50%;
  filter:blur(120px);pointer-events:none;
}
.hero-spot.spot-a{top:-280px;left:-160px;background:rgba(46,107,255,.22);}
.hero-spot.spot-b{bottom:-320px;right:-120px;background:rgba(22,224,200,.14);}
.beat-grid{
  position:absolute;inset:0;pointer-events:none;opacity:.55;
  background-image:repeating-linear-gradient(115deg,rgba(127,179,255,.07) 0 1px,transparent 1px 34px);
}
.page-hero .container{position:relative;z-index:2;}

.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:14px;color:var(--text-3);margin-bottom:18px;
}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--pulse);}
.breadcrumb .sep{color:var(--text-3);opacity:.6;}

.hero-layout{
  display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);
  gap:56px;align-items:center;
}
.hero-copy h1{
  font-size:clamp(28px,3.6vw,44px);
  line-height:1.32;
  letter-spacing:.01em;
}
.hero-copy h1 .hl{
  background:linear-gradient(120deg,#7FB3FF,#16E0C8);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{
  margin-top:18px;font-size:17px;line-height:1.85;color:var(--text-2);
  max-width:640px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;
  font-size:13px;color:var(--text-3);
}
.hero-meta span{display:inline-flex;align-items:center;gap:6px;}
.hero-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--pulse);opacity:.8;}

.rank-panel{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-block);
  box-shadow:var(--shadow-card);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  padding:22px;
}
.rank-panel-title{
  font-size:13px;color:var(--text-3);letter-spacing:.08em;
  font-family:var(--mono);margin-bottom:14px;
}
.rank-row{
  display:flex;align-items:center;gap:14px;
  padding:12px 0;border-bottom:1px dashed rgba(120,160,255,.14);
}
.rank-row:last-child{border-bottom:0;}
.ring{
  width:44px;height:44px;border-radius:50%;flex-shrink:0;
  display:grid;place-items:center;
  font-family:var(--mono);font-size:12px;color:var(--text);
  background:
    radial-gradient(closest-side,#0C111D 78%,transparent 79% 100%),
    conic-gradient(var(--pulse) var(--p,60%),rgba(120,160,255,.18) 0);
}
.ring.r1{--p:35%;}
.ring.r2{--p:68%;}
.ring.r3{--p:96%;}
.rank-info{flex:1;min-width:0;}
.rank-info strong{display:block;font-size:15px;font-weight:600;}
.rank-info small{display:block;font-size:12px;color:var(--text-3);line-height:1.6;}
.rank-price{font-family:var(--mono);font-size:14px;color:var(--gold);white-space:nowrap;}

/* 数据条 */
.stat-bar{
  position:relative;z-index:2;margin-top:44px;
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);
}
.stat-cell{padding:18px 20px 0;border-left:1px solid var(--line);}
.stat-cell:first-child{border-left:0;padding-left:0;}
.stat-num{font-family:var(--mono);font-size:24px;color:var(--text);letter-spacing:.06em;}
.stat-label{margin-top:4px;font-size:13px;color:var(--text-3);}

/* ============ 过滤条 ============ */
.filter-bar{
  border-bottom:1px solid var(--line);
  background:rgba(12,17,29,.6);
}
.filter-inner{
  display:flex;align-items:center;gap:12px;
  padding:16px 0;overflow-x:auto;
  scrollbar-width:none;
}
.filter-inner::-webkit-scrollbar{display:none;}
.filter-inner .segs{display:flex;gap:10px;}
.seg{
  height:34px;padding:0 18px;border-radius:var(--r-chip);
  display:inline-flex;align-items:center;font-size:14px;
  color:var(--text-2);background:transparent;border:1px solid var(--line);
  white-space:nowrap;transition:all var(--ease);
}
.seg:hover{color:var(--text);border-color:var(--line-cyan);}
.seg.is-active{
  color:#04101F;background:linear-gradient(135deg,#2E6BFF,#16E0C8);
  border-color:transparent;box-shadow:0 0 18px rgba(46,107,255,.35);
}
.filter-note{margin-left:auto;font-size:13px;color:var(--text-3);white-space:nowrap;}

/* ============ 主体布局 ============ */
.layout{
  display:grid;
  grid-template-columns:240px minmax(0,1fr);
  gap:48px;
  align-items:start;
  padding-top:64px;
  padding-bottom:96px;
}

/* 左侧锚点索引 */
.toc{
  position:sticky;top:100px;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--glass);
  padding:18px 16px;
  box-shadow:var(--shadow-card);
}
.toc-title{
  font-family:var(--mono);font-size:12px;letter-spacing:.1em;
  color:var(--text-3);margin-bottom:12px;
}
.toc-list{display:flex;flex-direction:column;gap:2px;}
.toc-link{
  display:flex;align-items:center;gap:10px;
  padding:9px 10px;border-radius:10px;
  font-size:14px;color:var(--text-2);
  border-left:2px solid transparent;
}
.toc-link .num{font-family:var(--mono);font-size:12px;color:var(--text-3);letter-spacing:.08em;}
.toc-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.toc-link.is-active{
  color:var(--text);
  background:linear-gradient(90deg,rgba(46,107,255,.16),transparent);
  border-left-color:var(--pulse);
}
.toc-link.is-active .num{color:var(--pulse);}
.toc-foot{margin-top:16px;padding-top:14px;border-top:1px solid var(--line);}
.toc-foot p{font-size:12px;color:var(--text-3);line-height:1.7;margin-bottom:12px;}

/* ============ 内容区 ============ */
.content{min-width:0;}

/* 等级横卡 */
.rank-card{
  display:grid;grid-template-columns:180px minmax(0,1fr);
  gap:20px;padding:18px;
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--glass);
  box-shadow:var(--shadow-card);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.rank-card + .rank-card{margin-top:14px;}
.rank-card:hover{transform:translateY(-4px);border-color:var(--line-cyan);box-shadow:var(--shadow-float);}
.rank-thumb{position:relative;border-radius:12px;overflow:hidden;border:1px solid var(--line-tint);}
.rank-thumb img{width:100%;height:100%;object-fit:cover;border:0;border-radius:0;aspect-ratio:4/3;}
.rank-thumb .lvl{
  position:absolute;left:10px;top:10px;
  font-family:var(--mono);font-size:12px;letter-spacing:.08em;
  padding:3px 9px;border-radius:var(--r-chip);
  background:rgba(7,10,18,.72);border:1px solid var(--line-tint);color:var(--text);
}
.rank-body{min-width:0;display:flex;flex-direction:column;gap:10px;}
.rank-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.rank-head h3{font-size:20px;line-height:1.4;}
.rank-price-line{font-family:var(--mono);font-size:15px;color:var(--gold);margin-left:auto;}
.rank-points{display:flex;flex-wrap:wrap;gap:8px;}
.rank-points li{
  font-size:13px;color:var(--text-2);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:var(--r-chip);
  padding:4px 12px;
}
.rank-foot{
  display:flex;align-items:center;gap:16px;flex-wrap:wrap;
  margin-top:auto;padding-top:10px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.rank-foot .mono{color:var(--text-2);}

/* 权益横向列表卡 3:1 */
.list-stack{display:flex;flex-direction:column;gap:14px;}
.row-card{
  display:grid;grid-template-columns:200px minmax(0,1fr);
  gap:20px;padding:16px;
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--glass);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.row-card:hover{transform:translateY(-4px);border-color:var(--line-cyan);box-shadow:var(--shadow-card);}
.row-thumb{border-radius:12px;overflow:hidden;border:1px solid var(--line-tint);}
.row-thumb img{width:100%;height:100%;object-fit:cover;aspect-ratio:3/2;border:0;border-radius:0;}
.row-body{min-width:0;display:flex;flex-direction:column;gap:8px;}
.row-title{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.row-title h3{font-size:18px;line-height:1.45;}
.row-desc{
  font-size:14px;line-height:1.75;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.row-foot{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  margin-top:auto;padding-top:10px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.row-foot .link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--primary-ink);}
.row-foot .link-arrow:hover{color:var(--pulse);}
.row-foot .link-arrow svg{width:14px;height:14px;}

/* 适用场景卡 */
.scene-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.scene-card{
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--glass);overflow:hidden;
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.scene-card:hover{transform:translateY(-6px);border-color:var(--line-cyan);box-shadow:var(--shadow-card);}
.scene-thumb{overflow:hidden;border-bottom:1px solid var(--line-tint);}
.scene-thumb img{width:100%;aspect-ratio:4/3;object-fit:cover;border:0;border-radius:0;transition:transform 320ms cubic-bezier(.4,0,.2,1);}
.scene-card:hover .scene-thumb img{transform:scale(1.04);}
.scene-body{padding:18px;}
.scene-body h3{font-size:18px;margin-bottom:8px;}
.scene-body p{font-size:14px;line-height:1.75;color:var(--text-2);margin-bottom:12px;}

/* 流程时间线 */
.flow{position:relative;padding-left:34px;}
.flow::before{
  content:"";position:absolute;left:11px;top:6px;bottom:6px;width:1px;
  background:linear-gradient(180deg,rgba(22,224,200,.5),rgba(120,160,255,.12));
}
.flow-item{position:relative;padding:0 0 26px;}
.flow-item:last-child{padding-bottom:0;}
.flow-item::before{
  content:"";position:absolute;left:-28px;top:8px;
  width:9px;height:9px;border-radius:50%;
  background:var(--bg-base);border:2px solid var(--pulse);
  box-shadow:0 0 12px rgba(22,224,200,.5);
}
.flow-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:6px;}
.flow-num{font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:var(--pulse);}
.flow-item h3{font-size:18px;}
.flow-item p{font-size:14px;line-height:1.8;color:var(--text-2);max-width:680px;}

/* 权益对照小表 */
.quick-table{
  border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;background:rgba(255,255,255,.02);
}
.qt-row{
  display:grid;grid-template-columns:minmax(0,1.4fr) repeat(3,minmax(0,1fr));
  align-items:center;min-height:52px;
  border-bottom:1px solid var(--line);
}
.qt-row:last-child{border-bottom:0;}
.qt-row:nth-child(even){background:rgba(255,255,255,.02);}
.qt-row.head{background:rgba(46,107,255,.08);font-size:13px;color:var(--text-2);font-family:var(--mono);letter-spacing:.06em;}
.qt-cell{padding:12px 16px;font-size:14px;color:var(--text-2);}
.qt-cell.name{color:var(--text);font-size:14px;}
.qt-cell.yes{color:var(--pulse);font-family:var(--mono);}
.qt-cell.no{color:var(--text-3);font-family:var(--mono);}

/* FAQ */
.faq{border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:var(--glass);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;text-align:left;
  font-size:16px;font-weight:600;color:var(--text);
  transition:background var(--ease);
}
.faq-q:hover{background:rgba(255,255,255,.035);}
.faq-item.is-open .faq-q{color:var(--primary-ink);}
.faq-q h3{font-size:16px;font-weight:600;line-height:1.6;}
.faq-icon{
  width:26px;height:26px;flex-shrink:0;border-radius:8px;
  display:grid;place-items:center;
  border:1px solid var(--line);color:var(--text-2);
  transition:transform var(--ease),color var(--ease),border-color var(--ease);
}
.faq-icon svg{width:13px;height:13px;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);color:var(--pulse);border-color:var(--line-cyan);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 320ms cubic-bezier(.4,0,.2,1);}
.faq-item.is-open .faq-a{max-height:420px;}
.faq-a-inner{
  padding:0 22px 22px 22px;
  font-size:15px;line-height:1.85;color:var(--text-2);max-width:760px;
  border-left:2px solid transparent;
}
.faq-item.is-open .faq-a-inner{border-left-color:var(--pulse);}

/* ============ 底部 CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:rgba(12,17,29,.72);
  padding:72px 0;
}
.cta-band .glow{
  position:absolute;width:680px;height:680px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,107,255,.22),transparent 68%);
  top:-320px;right:-180px;filter:blur(40px);pointer-events:none;
}
.cta-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,.85fr);
  gap:48px;align-items:center;
}
.cta-copy h2{font-size:clamp(24px,2.6vw,34px);line-height:1.4;margin-bottom:18px;}
.cta-points{display:flex;flex-direction:column;gap:12px;}
.cta-points li{
  position:relative;padding-left:18px;
  font-size:15px;color:var(--text-2);
}
.cta-points li::before{
  content:"";position:absolute;left:0;top:14px;
  width:3px;height:14px;border-radius:2px;
  background:linear-gradient(180deg,var(--pulse),rgba(22,224,200,.2));
}
.price-card{
  position:relative;
  border:1px solid rgba(255,194,75,.45);
  border-radius:var(--r-block);
  background:var(--glass-strong);
  box-shadow:var(--shadow-float);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  padding:26px;
}
.price-card .badge{position:absolute;top:-11px;left:26px;background:rgba(255,194,75,.18);}
.price{font-family:var(--mono);font-size:40px;color:var(--gold);letter-spacing:.04em;margin:8px 0 6px;}
.price span{font-size:15px;color:var(--text-3);letter-spacing:0;margin-left:6px;}
.price-note{font-size:14px;color:var(--text-2);line-height:1.75;margin-bottom:20px;}
.price-fine{margin-top:12px;font-size:12px;color:var(--text-3);line-height:1.7;}

/* ============ 页脚 ============ */
.site-footer{background:#05080F;border-top:1px solid var(--line);padding-top:64px;}
.footer-grid{
  max-width:1280px;margin:0 auto;padding:0 var(--pad-x) 48px;
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
}
.site-footer .brand{margin-bottom:16px;}
.footer-desc{font-size:14px;line-height:1.85;color:var(--text-3);max-width:360px;}
.footer-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px;letter-spacing:.02em;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:var(--text-2);}
.footer-links a:hover{color:var(--pulse);}
.footer-bar{border-top:1px solid var(--line);background:rgba(7,10,18,.7);}
.footer-bar-inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:20px;padding-bottom:20px;
  font-size:13px;color:var(--text-3);
}

/* ============ 移动端抽屉 ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.6);
  -webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);
  opacity:0;pointer-events:none;transition:opacity var(--ease);z-index:90;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:84%;max-width:340px;z-index:95;
  background:#0A0F1B;border-right:1px solid var(--line);
  transform:translateX(-102%);transition:transform 280ms cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;padding:22px 20px;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;}
.drawer-nav{display:flex;flex-direction:column;gap:6px;flex:1;overflow-y:auto;}
.drawer-nav a{
  padding:13px 14px;border-radius:12px;font-size:15px;color:var(--text-2);
  border:1px solid transparent;
}
.drawer-nav a:hover{background:rgba(255,255,255,.04);color:var(--text);}
.drawer-nav a.is-active{
  color:var(--text);background:linear-gradient(90deg,rgba(46,107,255,.18),transparent);
  border-color:rgba(46,107,255,.35);
}
.drawer-foot{padding-top:18px;border-top:1px solid var(--line);}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  :root{--pad-x:24px;}
  .layout{grid-template-columns:220px minmax(0,1fr);gap:32px;}
}

@media (max-width:1024px){
  .nav-chips{display:none;}
  .hamburger{display:grid;}
  .hero-layout{grid-template-columns:minmax(0,1fr);gap:36px;}
  .layout{grid-template-columns:minmax(0,1fr);padding-top:40px;padding-bottom:72px;}
  .toc{
    position:static;
    display:flex;align-items:center;gap:12px;
    overflow-x:auto;padding:12px;
    scrollbar-width:none;
  }
  .toc::-webkit-scrollbar{display:none;}
  .toc-title{display:none;}
  .toc-list{flex-direction:row;gap:8px;}
  .toc-link{white-space:nowrap;border-left:0;border:1px solid var(--line);padding:8px 14px;}
  .toc-link.is-active{border-left:0;border-color:rgba(46,107,255,.5);}
  .toc-foot{display:none;}
  .cta-inner{grid-template-columns:minmax(0,1fr);gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}

@media (max-width:768px){
  body{line-height:1.8;}
  .header-inner{height:60px;gap:12px;}
  .brand-text{font-size:15px;}
  .header-actions .btn-gold{display:none;}
  .page-hero{min-height:0;padding:40px 0;}
  .hero-sub{font-size:15.5px;}
  .stat-bar{grid-template-columns:repeat(2,1fr);margin-top:32px;}
  .stat-cell{padding:14px 14px 0;}
  .stat-cell:nth-child(odd){border-left:0;padding-left:0;}
  .stat-cell:nth-child(3),.stat-cell:nth-child(4){border-top:1px solid var(--line);}
  .section-head h2{font-size:24px;}
  .section-num{padding-top:5px;min-width:30px;}
  .scene-grid{grid-template-columns:minmax(0,1fr);}
  .rank-card{grid-template-columns:minmax(0,1fr);}
  .rank-thumb img{aspect-ratio:16/9;}
  .row-card{grid-template-columns:minmax(0,1fr);}
  .row-thumb img{aspect-ratio:16/9;}
  .quick-table{overflow-x:auto;}
  .qt-row{grid-template-columns:minmax(0,1.2fr) repeat(3,minmax(80px,1fr));min-width:520px;}
  .cta-band{padding:52px 0;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;padding-bottom:36px;}
  .footer-bar-inner{font-size:12px;}
  .hero-actions .btn{flex:1 1 auto;}
}

@media (max-width:520px){
  :root{--pad-x:16px;}
  .hero-copy h1{font-size:27px;line-height:1.42;}
  .hero-sub{font-size:15px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .section-head h2{font-size:21px;}
  .rank-head h3{font-size:18px;}
  .rank-price-line{margin-left:0;width:100%;}
  .price{font-size:32px;}
  .price-card{padding:20px;}
  .faq-q{padding:16px;font-size:15px;gap:10px;}
  .faq-a-inner{padding:0 16px 18px 16px;}
  .btn{height:46px;padding:0 20px;}
}

/* roulang page: category2 */
:root{
  --bg-base:#070A12;
  --bg-1:#0C111D;
  --bg-2:#122033;
  --glass:rgba(255,255,255,.055);
  --primary:#2E6BFF;
  --primary-ink:#7FB3FF;
  --pulse:#16E0C8;
  --gold:#FFC24B;
  --line:rgba(120,160,255,.14);
  --text:#F2F6FF;
  --text-2:#A6B4CC;
  --text-3:#6C7A94;
  --danger:#FF5A6E;
  --r-card:16px;
  --r-block:24px;
  --r-btn:12px;
  --shadow:0 12px 32px rgba(0,0,0,.45);
  --container:1280px;
  --mono:"JetBrains Mono","Inter",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;border-radius:12px}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.32;letter-spacing:.01em;font-weight:600}
p{margin:0}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--pulse);outline-offset:2px}
.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}
.mono{font-family:var(--mono);letter-spacing:.08em;font-feature-settings:"tnum"}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:transparent;
  transition:background .25s ease,box-shadow .25s ease,backdrop-filter .25s ease;
}
.site-header.is-scrolled{background:rgba(7,10,18,.78);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,#7FB3FF,#16E0C8);
  box-shadow:0 0 18px rgba(46,107,255,.35);
}
.brand-mark svg{width:20px;height:20px}
.brand-text{font-size:17px;font-weight:600;white-space:nowrap}
.nav-chips{
  flex:1;display:flex;justify-content:center;gap:8px;
  overflow-x:auto;scrollbar-width:none;
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 24px,#000 calc(100% - 24px),transparent 100%);
  mask-image:linear-gradient(90deg,transparent 0,#000 24px,#000 calc(100% - 24px),transparent 100%);
}
.nav-chips::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;
  font-size:14px;color:var(--text-2);background:var(--glass);border:1px solid var(--line);
  white-space:nowrap;position:relative;transition:.2s ease;
}
.chip:hover{color:var(--text);border-color:rgba(22,224,200,.45)}
.chip.is-active{
  color:var(--text);
  background:linear-gradient(135deg,rgba(46,107,255,.18),rgba(22,224,200,.12));
  border-color:transparent;
  box-shadow:inset 0 0 0 1px rgba(127,179,255,.55),0 0 16px rgba(46,107,255,.25);
}
.chip.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-1px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,#2E6BFF,#16E0C8);
}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  border:1px solid var(--line);background:var(--glass);color:var(--text-2);
  transition:.2s ease;
}
.icon-btn:hover{color:var(--text);border-color:rgba(22,224,200,.45)}
.icon-btn svg{width:18px;height:18px}
.menu-btn{
  display:none;width:38px;height:38px;border-radius:12px;border:1px solid var(--line);
  background:var(--glass);padding:11px 10px;flex-direction:column;justify-content:space-between;
}
.menu-btn span{display:block;height:2px;border-radius:2px;background:var(--text-2)}
.search-panel{background:rgba(7,10,18,.92);backdrop-filter:blur(16px);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.search-form{display:flex;gap:12px;padding-top:14px;padding-bottom:14px}
.search-form input{
  flex:1;height:44px;padding:0 16px;border-radius:12px;background:var(--bg-1);
  border:1px solid var(--line);color:var(--text);font-size:15px;
}
.search-form input::placeholder{color:var(--text-3)}
.search-form input:focus{outline:none;border-color:var(--pulse);box-shadow:0 0 0 4px rgba(22,224,200,.12)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease,border-color .2s ease,background .2s ease;
}
.btn-primary{background:linear-gradient(135deg,#2E6BFF,#16E0C8);color:#fff;box-shadow:0 0 24px rgba(46,107,255,.45)}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 0 40px rgba(46,107,255,.6);transform:translateY(-2px)}
.btn-primary:active{transform:none;box-shadow:0 0 16px rgba(46,107,255,.4)}
.btn-gold{background:var(--gold);color:#1A1206;box-shadow:0 0 24px rgba(255,194,75,.35)}
.btn-gold:hover{box-shadow:0 0 40px rgba(255,194,75,.55);transform:translateY(-2px)}
.btn-gold:active{transform:none}
.btn-ghost{background:var(--glass);border-color:var(--line);color:var(--text)}
.btn-ghost:hover{border-color:rgba(22,224,200,.45)}
.btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:10px}
.btn[disabled]{opacity:.45;box-shadow:none;cursor:not-allowed}

/* ---------- Badges ---------- */
.badge{
  display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  border:1px solid var(--line);background:var(--glass);color:var(--text-2);
}
.badge-new{background:var(--pulse);color:#04101F;border-color:transparent}
.badge-gold{background:var(--gold);color:#1A1206;border-color:transparent}
.badge-line{color:var(--primary-ink);border-color:rgba(127,179,255,.4)}

/* ---------- Drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.6);backdrop-filter:blur(4px);
  opacity:0;pointer-events:none;transition:.3s ease;z-index:79;
}
.drawer-panel{
  position:fixed;top:0;left:0;bottom:0;width:84%;max-width:360px;
  background:var(--bg-1);border-right:1px solid var(--line);
  padding:22px 20px 28px;transform:translateX(-100%);
  transition:transform .32s cubic-bezier(.4,0,.2,1);z-index:81;
  display:flex;flex-direction:column;gap:22px;overflow-y:auto;
}
body.drawer-open{overflow:hidden}
body.drawer-open .drawer-panel{transform:none}
body.drawer-open .drawer-mask{opacity:1;pointer-events:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-title{font-size:14px;color:var(--text-3)}
.drawer-links{display:grid;gap:6px}
.drawer-links a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 14px;border-radius:12px;border:1px solid var(--line);
  background:var(--glass);font-size:15px;color:var(--text-2);
}
.drawer-links a:hover{color:var(--text);border-color:rgba(22,224,200,.45)}
.drawer-links a.is-active{color:var(--text);box-shadow:inset 0 0 0 1px rgba(127,179,255,.5)}
.drawer-foot{margin-top:auto;display:grid;gap:12px}
.drawer-foot .btn{width:100%}

/* ---------- Hero ---------- */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,10,18,.74),rgba(7,10,18,.95));
}
.grid-deco{
  position:absolute;inset:0;z-index:1;opacity:.7;pointer-events:none;
  background-image:repeating-linear-gradient(45deg,rgba(127,179,255,.07) 0 1px,transparent 1px 14px);
}
.hero-glow{
  position:absolute;z-index:1;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,107,255,.28),transparent 68%);
  top:-220px;right:-120px;pointer-events:none;
}
.hero-glow.two{
  width:420px;height:420px;top:auto;bottom:-240px;left:-140px;right:auto;
  background:radial-gradient(circle,rgba(22,224,200,.2),transparent 68%);
}
.hero-inner{
  position:relative;z-index:2;
  min-height:320px;padding-top:52px;padding-bottom:52px;
  display:flex;flex-direction:column;justify-content:center;gap:16px;
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-3);flex-wrap:wrap}
.breadcrumb a:hover{color:var(--pulse)}
.breadcrumb .sep{color:var(--text-3);opacity:.6}
.breadcrumb [aria-current]{color:var(--text-2)}
h1.page-title{font-size:clamp(30px,4.4vw,52px);line-height:1.24;max-width:900px}
.hero-lead{font-size:17px;color:var(--text-2);max-width:720px}
.hero-meta{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:4px;font-size:14px;color:var(--text-3)}
.hero-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--text-3);opacity:.6}

/* ---------- Sections ---------- */
.section{padding:96px 0}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:780px;margin-bottom:40px}
.sec-no{
  display:inline-block;font-family:var(--mono);font-size:12px;letter-spacing:.08em;
  color:var(--pulse);margin-bottom:12px;
}
.sec-title{font-size:clamp(24px,2.8vw,36px);margin-bottom:14px}
.sec-desc{color:var(--text-2);font-size:16px}

/* ---------- Filter ---------- */
.filter-bar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:36px}
.filter-chip{
  display:inline-flex;align-items:center;height:38px;padding:0 18px;border-radius:999px;
  font-size:14px;color:var(--text-2);background:var(--glass);border:1px solid var(--line);
  transition:.2s ease;white-space:nowrap;
}
.filter-chip:hover{color:var(--text);border-color:rgba(22,224,200,.45)}
.filter-chip.is-active{
  color:var(--text);
  background:linear-gradient(135deg,rgba(46,107,255,.2),rgba(22,224,200,.12));
  box-shadow:inset 0 0 0 1px rgba(127,179,255,.6),0 0 18px rgba(46,107,255,.22);
  border-color:transparent;
}

/* ---------- Waterfall ---------- */
.waterfall{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
.wf-col{display:grid;gap:24px}
.wf-col:nth-child(2){margin-top:48px}
.wf-card{
  display:flex;flex-direction:column;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--glass);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .2s ease,border-color .2s ease;
}
.wf-card:hover{transform:translateY(-6px);border-color:rgba(22,224,200,.45)}
.wf-card.is-hidden{display:none}
.wf-thumb{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--bg-2)}
.wf-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .4s ease}
.wf-card:hover .wf-thumb img{transform:scale(1.04)}
.wf-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,10,18,0) 42%,rgba(7,10,18,.78));
}
.wf-thumb .badge{position:absolute;top:14px;left:14px;z-index:2}
.wf-thumb .wf-dur{
  position:absolute;right:14px;bottom:12px;z-index:2;
  font-family:var(--mono);font-size:12px;letter-spacing:.08em;color:#DCE6FF;
  background:rgba(7,10,18,.6);border:1px solid var(--line);border-radius:999px;padding:2px 10px;
}
.wf-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.wf-title{font-size:19px;line-height:1.45}
.wf-excerpt{
  color:var(--text-2);font-size:14px;line-height:1.72;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.wf-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-3);
}
.wf-tag{
  display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:999px;
  font-size:12px;color:var(--primary-ink);border:1px solid rgba(127,179,255,.32);
  background:rgba(46,107,255,.1);
}
.wf-more{display:inline-flex;align-items:center;gap:6px;color:var(--text-2);font-size:13px}
.wf-more:hover{color:var(--pulse)}

/* ---------- Rhythm nodes ---------- */
.rhythm{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.node-card{
  position:relative;padding:26px 24px;border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--glass);box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .2s ease,border-color .2s ease;
}
.node-card:hover{transform:translateY(-4px);border-color:rgba(22,224,200,.45)}
.node-card::before{
  content:"";position:absolute;left:24px;right:24px;top:0;height:2px;border-radius:2px;
  background:linear-gradient(90deg,#2E6BFF,#16E0C8);
  opacity:.85;
}
.node-no{font-family:var(--mono);font-size:12px;letter-spacing:.08em;color:var(--pulse);display:block;margin-bottom:14px}
.node-card h3{font-size:19px;margin-bottom:10px}
.node-card p{color:var(--text-2);font-size:14px;line-height:1.78}

/* ---------- Scene list ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.scene-item{
  display:flex;gap:14px;padding:22px;border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--glass);transition:border-color .2s ease,transform .2s ease;
}
.scene-item:hover{border-color:rgba(22,224,200,.4);transform:translateY(-3px)}
.scene-ico{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;display:grid;place-items:center;
  background:rgba(22,224,200,.12);border:1px solid rgba(22,224,200,.4);color:var(--pulse);
}
.scene-ico svg{width:14px;height:14px}
.scene-item h3{font-size:16px;margin-bottom:6px}
.scene-item p{color:var(--text-2);font-size:14px;line-height:1.75}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{position:relative;border-bottom:1px solid var(--line)}
.faq-item.is-open::before{
  content:"";position:absolute;left:-2px;top:18px;bottom:18px;width:2px;border-radius:2px;
  background:var(--pulse);
}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 4px;text-align:left;font-size:17px;font-weight:600;line-height:1.5;
}
.faq-q:hover{color:var(--primary-ink)}
.faq-q .ico{
  flex:0 0 auto;width:24px;height:24px;border-radius:8px;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--pulse);font-size:15px;line-height:1;
  transition:transform .25s ease;
}
.faq-item.is-open .faq-q .ico{transform:rotate(45deg);border-color:rgba(22,224,200,.5)}
.faq-a{
  max-width:760px;overflow:hidden;max-height:0;
  color:var(--text-2);font-size:15px;line-height:1.78;
  transition:max-height .3s ease,padding .3s ease;
}
.faq-item.is-open .faq-a{max-height:340px;padding-bottom:22px}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:48px;border:1px solid var(--line);border-radius:var(--r-block);
  background:var(--bg-2);
}
.cta-band::before{
  content:"";position:absolute;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,107,255,.3),transparent 68%);
  top:-200px;right:-140px;pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.6;
  background-image:repeating-linear-gradient(45deg,rgba(127,179,255,.06) 0 1px,transparent 1px 16px);
}
.cta-copy{position:relative;z-index:2;max-width:560px}
.cta-copy h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:16px}
.cta-points{display:grid;gap:10px}
.cta-points li{
  position:relative;padding-left:16px;color:var(--text-2);font-size:15px;line-height:1.7;
}
.cta-points li::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:2px;border-radius:2px;background:var(--pulse);
}
.cta-actions{position:relative;z-index:2;display:flex;flex-direction:column;gap:12px;min-width:220px}
.cta-note{font-size:13px;color:var(--text-3);text-align:center}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--line);background:var(--bg-1);padding-top:72px}
.footer-grid{
  width:100%;max-width:var(--container);margin:0 auto;padding:0 32px 56px;
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;
}
.footer-grid .brand{margin-bottom:0}
.footer-desc{margin-top:16px;color:var(--text-3);font-size:14px;line-height:1.8;max-width:340px}
.footer-title{font-size:15px;margin-bottom:16px}
.footer-links{display:grid;gap:10px;font-size:14px;color:var(--text-2)}
.footer-links a:hover{color:var(--pulse)}
.footer-bar{border-top:1px solid var(--line);padding:20px 0;font-size:13px;color:var(--text-3)}
.footer-bar-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.is-in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 28px}
  .footer-grid{padding:0 28px 48px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .section{padding:72px 0}
  .hero-inner{min-height:280px;padding-top:44px;padding-bottom:44px}
  .nav-chips{justify-content:flex-start}
  .waterfall{grid-template-columns:1fr}
  .wf-col:nth-child(2){margin-top:0}
  .rhythm{grid-template-columns:1fr}
  .scene-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;padding:0 24px 40px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .header-inner{height:60px;gap:12px}
  .nav-chips{display:none}
  .menu-btn{display:flex}
  .header-actions .btn-gold{display:none}
  .brand-text{font-size:15px}
  .hero-inner{padding-top:36px;padding-bottom:36px;gap:14px}
  .hero-lead{font-size:15.5px}
  .sec-head{margin-bottom:28px}
  .filter-bar{margin-bottom:26px}
  .wf-body{padding:16px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 20px;gap:24px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;padding:0 16px 32px;gap:28px}
  .footer-bar-inner{flex-direction:column;align-items:flex-start}
  .scene-item{padding:18px}
}
@media (max-width:520px){
  h1.page-title{font-size:28px}
  .sec-title{font-size:23px}
  .wf-title{font-size:17px}
  .faq-q{font-size:15.5px;padding:18px 2px}
  .footer-grid{padding:0 14px 28px}
  .container{padding:0 14px}
}

/* roulang page: category3 */
:root{
  --bg-base:#070A12;
  --bg-1:#0C111D;
  --bg-2:#122033;
  --glass:rgba(255,255,255,.055);
  --primary:#2E6BFF;
  --primary-ink:#7FB3FF;
  --pulse:#16E0C8;
  --gold:#FFC24B;
  --line:rgba(120,160,255,.14);
  --line-hover:rgba(22,224,200,.45);
  --text:#F2F6FF;
  --muted:#A6B4CC;
  --dim:#6C7A94;
  --danger:#FF5A6E;
  --r-card:16px;
  --r-block:24px;
  --r-btn:12px;
  --shadow-card:0 12px 32px rgba(0,0,0,.45), inset 0 1px 0 rgba(255,255,255,.06);
  --shadow-btn:0 0 24px rgba(46,107,255,.45);
  --shadow-gold:0 0 24px rgba(255,194,75,.35);
  --container:1280px;
  --sec-y:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.78;
  letter-spacing:.01em;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,opacity .2s ease}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
input{font:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em;line-height:1.32}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--pulse);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.cn-num{font-family:"JetBrains Mono","Inter",ui-monospace,SFMono-Regular,Menlo,monospace;font-variant-numeric:tabular-nums;letter-spacing:.08em}

/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(7,10,18,.55);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,backdrop-filter .25s ease;
}
.site-header.is-scrolled{
  background:rgba(7,10,18,.78);
  border-bottom-color:var(--line);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
}
.header-inner{
  display:flex;align-items:center;gap:24px;
  height:72px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:11px;flex-shrink:0;
  background:linear-gradient(135deg,var(--primary) 0%,var(--pulse) 100%);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 0 18px rgba(46,107,255,.45);
}
.brand-mark svg{width:19px;height:19px}
.brand-text{font-size:16.5px;font-weight:700;letter-spacing:.02em;white-space:nowrap}
.nav-chips{
  display:flex;align-items:center;gap:8px;
  margin:0 auto;
  overflow-x:auto;scrollbar-width:none;
  padding:4px 2px;
  -webkit-overflow-scrolling:touch;
}
.nav-chips::-webkit-scrollbar{display:none}
.chip{
  position:relative;flex-shrink:0;
  display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border-radius:999px;font-size:14px;color:var(--muted);
  background:var(--glass);border:1px solid var(--line);
  transition:color .2s ease,border-color .2s ease,box-shadow .2s ease,background .2s ease;
  white-space:nowrap;
}
.chip:hover{color:var(--text);border-color:var(--line-hover)}
.chip.is-active{
  color:var(--text);
  background:rgba(46,107,255,.12);
  border-color:rgba(46,107,255,.5);
  box-shadow:0 0 16px rgba(46,107,255,.25), inset 0 -2px 0 var(--pulse);
}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.icon-btn{
  width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:var(--glass);color:var(--muted);
  transition:color .2s ease,border-color .2s ease;
}
.icon-btn:hover{color:var(--text);border-color:var(--line-hover)}
.icon-btn svg{width:18px;height:18px}
.hamburger{display:none;width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:var(--glass);align-items:center;justify-content:center}
.hamburger span{display:block;width:17px;height:1.5px;background:var(--text);position:relative}
.hamburger span::before,.hamburger span::after{content:"";position:absolute;left:0;width:17px;height:1.5px;background:var(--text)}
.hamburger span::before{top:-5px}
.hamburger span::after{top:5px}

/* drawer */
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.6);backdrop-filter:blur(3px);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:84%;max-width:340px;z-index:95;
  background:var(--bg-1);border-right:1px solid var(--line);
  transform:translateX(-102%);transition:transform .28s ease;
  display:flex;flex-direction:column;padding:22px 20px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:var(--glass);color:var(--muted)}
.drawer-title{font-size:12px;color:var(--dim);letter-spacing:.14em;margin:14px 0 8px}
.drawer-link{
  display:block;padding:12px 14px;border-radius:12px;font-size:15px;color:var(--muted);
  border:1px solid transparent;transition:all .2s ease;
}
.drawer-link:hover{background:var(--glass);color:var(--text);border-color:var(--line)}
.drawer-link.is-active{background:rgba(46,107,255,.14);border-color:rgba(46,107,255,.45);color:var(--text)}
.drawer-foot{margin-top:auto;padding-top:22px}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease,border-color .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary) 0%,#1FA9D8 100%);
  color:#fff;box-shadow:var(--shadow-btn);
}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 0 40px rgba(46,107,255,.55);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 16px rgba(46,107,255,.4)}
.btn-gold{
  background:var(--gold);color:#1A1206;box-shadow:var(--shadow-gold);font-weight:700;
}
.btn-gold:hover{filter:brightness(1.06);box-shadow:0 0 34px rgba(255,194,75,.55);transform:translateY(-2px)}
.btn-gold:active{transform:translateY(0)}
.btn-ghost{
  background:var(--glass);border:1px solid var(--line);color:var(--text);
}
.btn-ghost:hover{border-color:var(--line-hover);color:#fff;transform:translateY(-2px)}
.btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:10px}

/* ============ Badges ============ */
.badge{
  display:inline-flex;align-items:center;height:22px;padding:0 10px;
  border-radius:999px;font-size:12px;line-height:1;letter-spacing:.04em;white-space:nowrap;
}
.badge-gold{background:rgba(255,194,75,.15);border:1px solid rgba(255,194,75,.5);color:var(--gold)}
.badge-new{background:rgba(22,224,200,.14);border:1px solid rgba(22,224,200,.45);color:var(--pulse)}
.badge-outline{background:var(--glass);border:1px solid var(--line);color:var(--muted)}

/* ============ Hero ============ */
.cat-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.cat-hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  filter:saturate(.85);
}
.cat-hero::before{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(7,10,18,.86) 0%,rgba(7,10,18,.94) 60%,var(--bg-base) 100%);
}
.cat-hero::after{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background-image:repeating-linear-gradient(115deg,rgba(127,179,255,.055) 0 1px,transparent 1px 26px);
  opacity:.9;
}
.cat-hero-inner{position:relative;z-index:2;padding:64px 32px 56px;max-width:var(--container);margin:0 auto}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--dim);margin-bottom:22px}
.breadcrumb a:hover{color:var(--pulse)}
.breadcrumb .sep{color:rgba(108,122,148,.7)}
.breadcrumb .now{color:var(--muted)}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;
  background:rgba(22,224,200,.1);border:1px solid rgba(22,224,200,.35);color:var(--pulse);
  font-size:13px;letter-spacing:.06em;margin-bottom:20px;
}
.hero-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--pulse);box-shadow:0 0 10px var(--pulse)}
.cat-hero h1{
  font-size:52px;line-height:1.16;max-width:860px;margin-bottom:20px;
}
.cat-hero h1 em{font-style:normal;color:var(--primary-ink)}
.hero-sub{font-size:17px;line-height:1.82;color:var(--muted);max-width:720px;margin-bottom:24px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:13.5px;color:var(--dim);margin-bottom:30px}
.hero-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--dim);display:inline-block;vertical-align:middle;margin:0 6px}
.filter-bar{display:flex;flex-wrap:wrap;gap:10px}
.filter-chip{
  display:inline-flex;align-items:center;height:36px;padding:0 18px;border-radius:999px;
  font-size:14px;color:var(--muted);background:var(--glass);border:1px solid var(--line);
  transition:all .2s ease;
}
.filter-chip:hover{color:var(--text);border-color:var(--line-hover)}
.filter-chip.is-active{
  color:var(--text);background:linear-gradient(135deg,rgba(46,107,255,.2),rgba(22,224,200,.14));
  border-color:rgba(46,107,255,.55);box-shadow:0 0 16px rgba(46,107,255,.22);
}

/* ============ Stat strip ============ */
.stat-strip{border-bottom:1px solid var(--line);background:rgba(12,17,29,.6)}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat-item{padding:26px 24px;border-right:1px solid var(--line)}
.stat-item:last-child{border-right:none}
.stat-num{font-size:26px;font-weight:700;color:var(--primary-ink);margin-bottom:6px}
.stat-label{font-size:13.5px;color:var(--dim);line-height:1.6}

/* ============ Section base ============ */
.section{padding:var(--sec-y) 0;position:relative}
.section-head{max-width:760px;margin-bottom:48px}
.section-head .idx{
  font-family:"JetBrains Mono",monospace;font-size:13px;color:var(--pulse);
  letter-spacing:.16em;display:block;margin-bottom:14px;
}
.section-head h2{font-size:36px;line-height:1.3;margin-bottom:14px}
.section-head p{color:var(--muted);font-size:16px;line-height:1.85}
.section-line{border-top:1px solid var(--line)}

/* ============ Timeline ============ */
.steps-timeline{position:relative;padding:8px 0}
.steps-timeline::before{
  content:"";position:absolute;left:50%;top:0;bottom:0;width:1px;transform:translateX(-50%);
  background:linear-gradient(180deg,rgba(120,160,255,.05),rgba(120,160,255,.28) 12%,rgba(120,160,255,.28) 88%,rgba(120,160,255,.05));
}
.tl-item{position:relative;width:calc(50% - 56px);margin-bottom:32px;opacity:0;transform:translateY(22px)}
.tl-item.is-visible{opacity:1;transform:none;transition:opacity .6s ease,transform .6s ease}
.tl-item:nth-child(odd){margin-right:auto}
.tl-item:nth-child(even){margin-left:auto}
.tl-node{
  position:absolute;top:30px;width:14px;height:14px;border-radius:50%;
  background:var(--pulse);box-shadow:0 0 0 5px rgba(22,224,200,.13),0 0 16px rgba(22,224,200,.6);
}
.tl-item:nth-child(odd) .tl-node{right:-63px}
.tl-item:nth-child(even) .tl-node{left:-63px}
.tl-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);padding:24px;
  transition:transform .2s ease,border-color .2s ease;
}
.tl-card:hover{transform:translateY(-5px);border-color:var(--line-hover)}
.tl-head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.tl-head .num{
  font-family:"JetBrains Mono",monospace;font-size:26px;font-weight:700;
  color:rgba(127,179,255,.85);letter-spacing:.06em;line-height:1;
}
.tl-card h3{font-size:21px;line-height:1.42;margin-bottom:10px}
.tl-desc{font-size:15px;line-height:1.85;color:var(--muted);margin-bottom:14px}
.tl-list li{
  position:relative;padding-left:20px;font-size:14.5px;line-height:1.85;color:var(--muted);margin-bottom:6px;
}
.tl-list li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:2px;border-radius:2px;background:var(--pulse);
}
.tl-foot{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:18px;padding-top:14px;border-top:1px solid var(--line);
  font-size:13px;color:var(--dim);
}
.tl-thumb{
  margin-top:18px;border-radius:14px;overflow:hidden;
  border:1px solid rgba(255,255,255,.06);
}
.tl-thumb img{width:100%;height:150px;object-fit:cover}
.tl-item.is-hidden{display:none}

/* ============ Checklist ============ */
.check-panel{
  display:grid;grid-template-columns:1.05fr .95fr;gap:32px;
  background:rgba(12,17,29,.68);border:1px solid var(--line);border-radius:var(--r-block);
  padding:40px;position:relative;overflow:hidden;
}
.check-panel::after{
  content:"";position:absolute;right:-120px;top:-140px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,107,255,.24),transparent 70%);pointer-events:none;
}
.check-panel h2{font-size:30px;margin-bottom:14px}
.check-panel .lead{color:var(--muted);font-size:15.5px;line-height:1.85;margin-bottom:26px}
.task-list li{
  display:flex;gap:14px;padding:14px 0;border-bottom:1px solid var(--line);
}
.task-list li:last-child{border-bottom:none}
.task-check{
  width:22px;height:22px;flex-shrink:0;border-radius:7px;margin-top:3px;
  border:1px solid rgba(22,224,200,.5);background:rgba(22,224,200,.12);
  display:flex;align-items:center;justify-content:center;
}
.task-check svg{width:12px;height:12px}
.task-title{font-size:15.5px;font-weight:600;margin-bottom:4px}
.task-note{font-size:13.5px;color:var(--dim);line-height:1.75}
.progress-wrap{
  background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;display:flex;flex-direction:column;gap:22px;
}
.progress-item .progress-top{display:flex;justify-content:space-between;font-size:14px;color:var(--muted);margin-bottom:10px}
.progress-track{height:8px;border-radius:999px;background:rgba(255,255,255,.06);overflow:hidden}
.progress-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--pulse))}
.ring-box{display:flex;align-items:center;gap:20px;padding-top:6px}
.ring{
  width:96px;height:96px;border-radius:50%;flex-shrink:0;
  background:conic-gradient(var(--pulse) 0 68%, rgba(255,255,255,.07) 68% 100%);
  display:flex;align-items:center;justify-content:center;
}
.ring::before{
  content:"";position:absolute;
}
.ring-inner{
  width:76px;height:76px;border-radius:50%;background:var(--bg-1);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
}
.ring-inner .val{font-family:"JetBrains Mono",monospace;font-size:20px;color:var(--pulse);line-height:1}
.ring-inner .unit{font-size:11px;color:var(--dim);margin-top:4px}
.ring-text{font-size:14px;color:var(--muted);line-height:1.8}

/* ============ Scene cards ============ */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.scene-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .2s ease,border-color .2s ease;
  display:flex;flex-direction:column;
}
.scene-card:hover{transform:translateY(-6px);border-color:var(--line-hover)}
.scene-media{position:relative;aspect-ratio:4/3;overflow:hidden}
.scene-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.scene-card:hover .scene-media img{transform:scale(1.05)}
.scene-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,10,18,.1),rgba(7,10,18,.72));
}
.scene-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.scene-body h3{font-size:19px;line-height:1.45;margin-bottom:10px}
.scene-body p{font-size:14.5px;color:var(--muted);line-height:1.85;margin-bottom:16px}
.scene-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--dim)}

/* ============ FAQ ============ */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  width:100%;text-align:left;padding:22px 4px;font-size:17px;font-weight:600;color:var(--text);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--primary-ink)}
.faq-icon{
  width:26px;height:26px;flex-shrink:0;position:relative;border-radius:8px;
  border:1px solid var(--line);background:var(--glass);
  transition:transform .25s ease,border-color .25s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--pulse);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:11px;height:1.5px}
.faq-icon::after{width:1.5px;height:11px;transition:opacity .2s ease}
.faq-item.is-open .faq-icon{transform:rotate(45deg);border-color:rgba(22,224,200,.5)}
.faq-panel{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-a{max-width:760px;font-size:15px;line-height:1.88;color:var(--muted);padding:0 4px 24px}
.faq-item.is-open{border-left:2px solid var(--pulse);padding-left:16px}

/* ============ CTA ============ */
.cta-band{padding:0 0 var(--sec-y)}
.cta-panel{
  position:relative;overflow:hidden;
  background:rgba(12,17,29,.8);border:1px solid var(--line);border-radius:var(--r-block);
  padding:48px;display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;
}
.cta-panel::before{
  content:"";position:absolute;left:-140px;bottom:-180px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(22,224,200,.18),transparent 70%);
}
.cta-left{position:relative;z-index:2}
.cta-left h2{font-size:32px;line-height:1.3;margin-bottom:16px}
.cta-points{display:grid;gap:10px;margin-bottom:28px}
.cta-points li{position:relative;padding-left:22px;font-size:15px;color:var(--muted)}
.cta-points li::before{
  content:"";position:absolute;left:0;top:11px;width:2px;height:14px;border-radius:2px;background:var(--pulse);
}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.price-card{
  position:relative;z-index:2;background:rgba(255,194,75,.05);
  border:1px solid rgba(255,194,75,.42);border-radius:var(--r-card);
  box-shadow:0 0 30px rgba(255,194,75,.14);
  padding:28px;
}
.price-card .plan{font-size:13px;color:var(--gold);letter-spacing:.14em;margin-bottom:12px}
.price-card h3{font-size:23px;margin-bottom:16px}
.price-list li{
  position:relative;padding-left:20px;font-size:14.5px;color:var(--muted);line-height:1.85;margin-bottom:8px;
}
.price-list li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:2px;border-radius:2px;background:var(--gold);
}
.price-card .btn{width:100%;margin-top:20px}
.price-note{font-size:12.5px;color:var(--dim);margin-top:12px;line-height:1.7;text-align:center}

/* ============ Footer ============ */
.site-footer{border-top:1px solid var(--line);background:rgba(12,17,29,.75);margin-top:0}
.footer-grid{
  max-width:var(--container);margin:0 auto;padding:64px 32px 44px;
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;
}
.footer-desc{font-size:14px;color:var(--dim);line-height:1.85;margin-top:16px;max-width:340px}
.footer-title{font-size:14px;color:var(--text);margin-bottom:16px;letter-spacing:.06em}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14px;color:var(--muted)}
.footer-links a:hover{color:var(--pulse)}
.footer-bar{border-top:1px solid var(--line)}
.footer-bar-inner{
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  padding-top:20px;padding-bottom:20px;font-size:13px;color:var(--dim);
}

/* ============ Responsive ============ */
@media (max-width:1280px){
  .cat-hero h1{font-size:46px}
}
@media (max-width:1024px){
  :root{--sec-y:72px}
  .container{padding:0 24px}
  .nav-chips{gap:6px}
  .cat-hero-inner{padding:52px 24px 46px}
  .cat-hero h1{font-size:40px}
  .section-head h2{font-size:30px}
  .check-panel{grid-template-columns:1fr;padding:32px}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .cta-panel{grid-template-columns:1fr;padding:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;padding:52px 24px 36px}
}
@media (max-width:900px){
  .nav-chips{display:none}
  .hamburger{display:flex}
  .header-actions .btn-gold{display:none}
  .cat-hero h1{font-size:32px}
  .hero-sub{font-size:16px}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .stat-item:nth-child(2){border-right:none}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--line)}
  .steps-timeline::before{left:19px;transform:none}
  .tl-item{width:100%;padding-left:52px;margin-bottom:22px}
  .tl-item:nth-child(odd),.tl-item:nth-child(even){margin-left:0;margin-right:0}
  .tl-item:nth-child(odd) .tl-node,.tl-item:nth-child(even) .tl-node{left:12px;right:auto;top:26px}
  .scene-grid{grid-template-columns:1fr}
  .check-panel{padding:26px}
  .ring-box{flex-direction:row}
}
@media (max-width:768px){
  :root{--sec-y:56px}
  .container{padding:0 16px}
  .header-inner{height:60px;gap:14px}
  .brand-text{font-size:15px}
  .cat-hero-inner{padding:40px 16px 36px}
  .cat-hero h1{font-size:29px}
  .section-head{margin-bottom:32px}
  .section-head h2{font-size:24px}
  .tl-card{padding:20px}
  .tl-card h3{font-size:19px}
  .cta-panel{padding:26px}
  .cta-left h2{font-size:25px}
  .cta-actions .btn{width:100%}
  .faq-q{font-size:16px;padding:18px 2px}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding:44px 16px 30px}
}
@media (max-width:520px){
  .cat-hero h1{font-size:26px}
  .stat-item{padding:20px 16px}
  .stat-num{font-size:22px}
  .check-panel{padding:22px}
  .progress-wrap{padding:20px}
  .ring{width:82px;height:82px}
  .ring-inner{width:64px;height:64px}
  .footer-bar-inner{flex-direction:column;gap:8px}
}