/* roulang page: index */
:root{
  --bg:#05070F;
  --bg-2:#0A0F1E;
  --glass-a:rgba(255,255,255,.06);
  --glass-b:rgba(255,255,255,.02);
  --line:rgba(150,220,255,.12);
  --line-soft:rgba(150,220,255,.08);
  --line-strong:rgba(47,227,196,.35);
  --text:#EAF2FF;
  --text-2:#A7B6CE;
  --text-3:#6C7C96;
  --primary:#2FE3C4;
  --primary-deep:#12A88F;
  --violet:#7A5CFF;
  --violet-2:#C04BFF;
  --amber:#FFC24B;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:10px;
  --sh:0 8px 24px rgba(0,0,0,.35);
  --sh-glow:0 0 0 1px rgba(47,227,196,.25), 0 12px 40px rgba(47,227,196,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --gap:24px;
  --section:96px;
  --nav-h:64px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--primary)}
h1,h2,h3,h4,p,ul,ol,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
button,input,textarea,select{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
::selection{background:rgba(47,227,196,.28)}

/* 容器 */
.grid-container.page-container{max-width:1200px;padding-left:20px;padding-right:20px;margin-left:auto;margin-right:auto}
.grid-margin-x{margin-left:-12px;margin-right:-12px}
.grid-margin-x > .cell{margin-left:12px;margin-right:12px;width:calc(100% - 24px)}
@media print,screen and (min-width:40em){
  .grid-margin-x > .cell{width:calc(100% - 24px)}
}
.section{padding:var(--section) 0;position:relative}
.section--alt{background:var(--bg-2);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}

/* 头部悬浮胶囊导航 */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:90;
  padding:16px 20px;
  pointer-events:none;
}
.site-header .nav-shell{pointer-events:auto}
.nav-shell{
  max-width:1120px;margin:0 auto;height:var(--nav-h);
  display:flex;align-items:center;gap:18px;
  padding:0 12px 0 22px;
  border-radius:999px;
  background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:0 8px 30px rgba(0,0,0,.42);
}
.brand{
  display:flex;align-items:center;gap:10px;
  font-weight:700;font-size:16px;letter-spacing:.02em;white-space:nowrap;
}
.brand:hover{color:var(--text)}
.brand-mark{
  width:26px;height:26px;border-radius:8px;flex:none;
  background:linear-gradient(135deg,var(--primary),var(--violet-2));
  box-shadow:0 0 16px rgba(47,227,196,.4);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;inset:8px 7px;border-radius:3px;
  background:rgba(5,7,15,.85);
}
.brand-text b{color:var(--primary);font-weight:700}
.nav-menu{
  display:flex;align-items:center;gap:2px;flex:1 1 auto;
  justify-content:center;min-width:0;
}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  height:40px;padding:0 13px;border-radius:999px;
  font-size:14.5px;color:var(--text-2);white-space:nowrap;
  border:1px solid transparent;
  transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:5px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--violet-2));
  transform:scaleX(0);transform-origin:left;
  transition:transform .24s var(--ease);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{
  color:var(--text);
  border-color:rgba(47,227,196,.45);
  background:rgba(47,227,196,.08);
}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:999px;
  border:1px solid var(--line);align-items:center;justify-content:center;
  background:rgba(255,255,255,.04);
}
.nav-toggle span{
  display:block;width:18px;height:2px;border-radius:2px;background:var(--text);
  position:relative;transition:transform .22s var(--ease),background .22s var(--ease);
}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--text);
  transition:transform .22s var(--ease),top .22s var(--ease);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{top:0;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.02em;white-space:nowrap;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),filter .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{
  color:#04121B;
  background:linear-gradient(135deg,#4BF0D4,#12A88F);
  box-shadow:var(--sh-glow);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);color:#04121B}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(47,227,196,.2),0 6px 18px rgba(47,227,196,.14)}
.btn-ghost{
  color:var(--text);background:transparent;
  border-color:rgba(150,220,255,.28);
}
.btn-ghost:hover{background:rgba(255,255,255,.06);transform:translateY(-1px);color:var(--text)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}

/* 标签与徽章 */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 11px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.06em;
  border:1px solid rgba(150,220,255,.22);color:var(--text-2);
  background:rgba(255,255,255,.03);
}
.badge-violet{color:#D6C7FF;border-color:rgba(122,92,255,.5);background:rgba(122,92,255,.13)}
.badge-primary{color:#B8FFF0;border-color:rgba(47,227,196,.45);background:rgba(47,227,196,.1)}
.badge-amber{color:#FFE0A8;border-color:rgba(255,194,75,.45);background:rgba(255,194,75,.1)}

/* Hero */
.hero{
  position:relative;overflow:hidden;
  padding:150px 0 84px;
  min-height:560px;
  border-bottom:1px solid var(--line-soft);
}
.hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  opacity:.34;filter:saturate(115%);
}
.hero::before{
  content:"";position:absolute;inset:0;z-index:1;
  background-image:linear-gradient(rgba(150,220,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(150,220,255,.06) 1px,transparent 1px);
  background-size:44px 44px;
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:2;
  background:
    radial-gradient(560px 420px at 6% 4%,rgba(47,227,196,.22),transparent 62%),
    radial-gradient(540px 440px at 94% 100%,rgba(192,75,255,.2),transparent 64%),
    linear-gradient(180deg,rgba(5,7,15,.55),rgba(5,7,15,.92) 72%,var(--bg) 100%);
}
.hero .page-container{position:relative;z-index:3}
.hero-grid{align-items:center}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.06em;color:#B8FFF0;
  border:1px solid rgba(47,227,196,.35);background:rgba(47,227,196,.08);
}
.hero h1{
  margin-top:20px;
  font-size:clamp(30px,4.2vw,52px);
  font-weight:700;line-height:1.18;letter-spacing:-.01em;
}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(120deg,#4BF0D4,#7A5CFF 60%,#C04BFF);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{
  margin-top:18px;font-size:17px;color:var(--text-2);max-width:34em;
}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-pills{display:flex;flex-wrap:wrap;gap:12px;margin-top:36px}
.pill{
  display:flex;flex-direction:column;gap:2px;
  min-width:132px;padding:12px 16px;border-radius:var(--r-md);
  background:linear-gradient(180deg,var(--glass-a),var(--glass-b));
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
.pill b{
  font-size:20px;font-weight:700;color:var(--primary);
  font-variant-numeric:tabular-nums;letter-spacing:.01em;
}
.pill span{font-size:12.5px;color:var(--text-3);letter-spacing:.04em}
.hero-visual{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.015));
  box-shadow:0 24px 60px rgba(0,0,0,.5);
  aspect-ratio:16/10;
}
.hero-visual img{width:100%;height:100%;object-fit:cover}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,7,15,.05) 30%,rgba(5,7,15,.86));
}
.hero-visual-cap{
  position:absolute;left:20px;right:20px;bottom:18px;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.hero-visual-cap strong{font-size:15px;font-weight:600}
.hero-visual-cap span{font-size:12.5px;color:var(--text-2)}

/* 板块标题 */
.sec-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:18px;margin-bottom:40px;
}
.sec-head-main{display:flex;gap:16px;align-items:flex-start}
.sec-num{
  font-size:32px;font-weight:700;line-height:1;
  color:transparent;-webkit-text-stroke:1px rgba(47,227,196,.7);
  font-variant-numeric:tabular-nums;padding-top:4px;
}
.sec-bar{
  width:3px;border-radius:3px;align-self:stretch;flex:none;
  background:linear-gradient(180deg,var(--primary),var(--violet-2));
  min-height:52px;
}
.sec-head h2{font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.3}
.sec-head p{margin-top:8px;font-size:14.5px;color:var(--text-2);max-width:52em}

/* 合集目录 */
.catalog-list{display:flex;flex-direction:column;gap:14px}
.catalog-item{
  display:flex;align-items:center;gap:20px;
  padding:20px 24px;border-radius:var(--r-lg);
  background:linear-gradient(180deg,var(--glass-a),var(--glass-b));
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease);
}
.catalog-item:hover{
  transform:translateY(-4px);
  border-color:var(--line-strong);
  box-shadow:0 14px 40px rgba(0,0,0,.42),0 0 0 1px rgba(47,227,196,.18);
}
.catalog-num{
  flex:none;width:62px;
  font-size:28px;font-weight:700;line-height:1;font-variant-numeric:tabular-nums;
  color:transparent;-webkit-text-stroke:1px rgba(150,220,255,.55);
}
.catalog-div{width:1px;align-self:stretch;flex:none;background:linear-gradient(180deg,transparent,rgba(150,220,255,.28),transparent)}
.catalog-body{flex:1 1 auto;min-width:0}
.catalog-body h3{font-size:18px;font-weight:600;line-height:1.4}
.catalog-body p{margin-top:4px;font-size:14px;color:var(--text-2)}
.catalog-tags{display:flex;gap:8px;flex:none;flex-wrap:wrap}
.catalog-arrow{
  flex:none;width:36px;height:36px;border-radius:999px;
  display:grid;place-items:center;font-size:15px;color:var(--primary);
  border:1px solid rgba(47,227,196,.3);background:rgba(47,227,196,.07);
  transition:transform .22s var(--ease),background .22s var(--ease);
}
.catalog-item:hover .catalog-arrow{transform:translateX(3px);background:rgba(47,227,196,.15)}

/* 精选条目 */
.feature-stack{display:flex;flex-direction:column;gap:var(--gap)}
.feature-main{
  position:relative;display:block;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);aspect-ratio:16/9;
  background:linear-gradient(160deg,#0d1428,#070a16);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.feature-main:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 18px 46px rgba(0,0,0,.5),0 0 0 1px rgba(47,227,196,.16)}
.feature-main img{width:100%;height:100%;object-fit:cover;opacity:.92}
.feature-main::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,7,15,.15) 34%,rgba(5,7,15,.94))}
.feature-main-body{position:absolute;left:24px;right:24px;bottom:22px;z-index:2}
.feature-main-body h3{margin-top:12px;font-size:22px;font-weight:700;line-height:1.4;color:#EAF2FF}
.feature-main-body p{margin-top:8px;font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.feature-main-meta{display:flex;gap:14px;margin-top:12px;font-size:12.5px;color:var(--text-3);font-variant-numeric:tabular-nums}
.strip-list{display:flex;flex-direction:column;gap:12px}
.strip-card{
  display:flex;gap:14px;align-items:center;
  padding:14px;border-radius:var(--r-md);
  background:linear-gradient(180deg,var(--glass-a),var(--glass-b));
  border:1px solid var(--line);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.strip-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 12px 32px rgba(0,0,0,.4)}
.strip-thumb{
  flex:none;width:64px;height:64px;border-radius:var(--r-sm);overflow:hidden;
  background:linear-gradient(140deg,#111a30,#080c18);
}
.strip-thumb img{width:100%;height:100%;object-fit:cover}
.strip-body{min-width:0}
.strip-body h3{font-size:15px;font-weight:600;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.strip-body p{margin-top:5px;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums}

/* 最新信息 */
.latest-wrap{
  border-radius:var(--r-lg);border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.015));
  padding:10px;min-height:180px;
}
.latest-list{display:flex;flex-direction:column}
.latest-card{
  display:flex;gap:18px;align-items:flex-start;
  padding:18px 16px;border-radius:var(--r-md);
  border-bottom:1px solid var(--line-soft);
  position:relative;
  transition:background .22s var(--ease),transform .22s var(--ease);
}
.latest-card:last-child{border-bottom:0}
.latest-card::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,var(--primary),transparent);
  opacity:0;transition:opacity .22s var(--ease);
}
.latest-card:hover{background:rgba(255,255,255,.045);transform:translateX(3px)}
.latest-card:hover::before{opacity:1}
.latest-thumb{
  flex:none;width:112px;height:74px;border-radius:var(--r-sm);overflow:hidden;
  background:linear-gradient(140deg,#111a30,#080c18);
}
.latest-thumb img{width:100%;height:100%;object-fit:cover}
.latest-body{min-width:0;flex:1 1 auto}
.latest-title{
  margin-top:10px;font-size:16.5px;font-weight:600;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.latest-sum{
  margin-top:6px;font-size:14px;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.latest-time{
  display:block;margin-top:8px;font-size:12.5px;color:var(--text-3);
  font-variant-numeric:tabular-nums;letter-spacing:.04em;
}
.latest-empty{
  min-height:180px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:12px;text-align:center;padding:34px 20px;
}
.latest-empty .empty-icon{
  width:46px;height:46px;border-radius:14px;
  border:1px solid rgba(47,227,196,.35);background:rgba(47,227,196,.08);
  display:grid;place-items:center;color:var(--primary);font-size:20px;
}
.latest-empty p{font-size:14.5px;color:var(--text-2)}
.skeleton{height:14px;border-radius:7px;background:rgba(255,255,255,.05);margin-top:10px}

/* 横向滚动带 */
.rail-wrap{position:relative}
.rail{
  display:flex;gap:18px;overflow-x:auto;
  scroll-snap-type:x mandatory;
  padding:6px 4px 18px;
  scrollbar-width:none;
}
.rail::-webkit-scrollbar{display:none}
.rail-card{
  flex:none;width:260px;scroll-snap-align:start;
  border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);
  background:linear-gradient(180deg,var(--glass-a),var(--glass-b));
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.rail-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 14px 36px rgba(0,0,0,.45)}
.rail-thumb{aspect-ratio:3/2;background:linear-gradient(140deg,#111a30,#080c18);overflow:hidden;position:relative}
.rail-thumb img{width:100%;height:100%;object-fit:cover}
.rail-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 50%,rgba(5,7,15,.6))}
.rail-body{padding:16px 18px 20px}
.rail-body h3{margin-top:10px;font-size:15.5px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rail-body p{margin-top:8px;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums}

/* 收录规模 */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap)}
.stat-card{
  padding:26px 24px;border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:linear-gradient(180deg,var(--glass-a),var(--glass-b));
  transition:border-color .22s var(--ease),transform .22s var(--ease);
}
.stat-card:hover{border-color:var(--line-strong);transform:translateY(-4px)}
.stat-card b{
  display:block;font-size:36px;font-weight:700;line-height:1.1;
  color:var(--primary);font-variant-numeric:tabular-nums;
}
.stat-card span{display:block;margin-top:10px;font-size:14px;color:var(--text-2);line-height:1.7}
.note-panel{
  margin-top:var(--gap);
  display:flex;gap:20px;align-items:flex-start;
  padding:24px;border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(122,92,255,.12),rgba(47,227,196,.08));
}
.note-panel .sec-bar{min-height:62px}
.note-panel h3{font-size:18px;font-weight:600}
.note-panel p{margin-top:8px;font-size:14.5px;color:var(--text-2)}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:linear-gradient(180deg,var(--glass-a),var(--glass-b));
  overflow:hidden;
  transition:border-color .22s var(--ease),background .22s var(--ease);
}
.faq-item[open]{border-color:rgba(47,227,196,.3)}
.faq-item summary{
  list-style:none;cursor:pointer;
  min-height:48px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:14px 20px;font-size:16px;font-weight:600;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-plus{
  flex:none;width:26px;height:26px;border-radius:999px;position:relative;
  border:1px solid rgba(150,220,255,.28);
  transition:transform .24s var(--ease),border-color .24s var(--ease),background .24s var(--ease);
}
.faq-plus::before,.faq-plus::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-plus::before{width:11px;height:1.5px}
.faq-plus::after{width:1.5px;height:11px;transition:opacity .24s var(--ease)}
.faq-item[open] .faq-plus{transform:rotate(180deg);border-color:rgba(47,227,196,.5);background:rgba(47,227,196,.1)}
.faq-item[open] .faq-plus::after{opacity:0}
.faq-answer{padding:0 20px 20px 40px;font-size:14px;line-height:1.8;color:var(--text-2)}

/* CTA */
.cta-panel{
  position:relative;overflow:hidden;
  border-radius:24px;
  border:1px solid var(--line);
  background:linear-gradient(150deg,rgba(47,227,196,.13),rgba(122,92,255,.14) 55%,rgba(255,255,255,.03));
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  padding:52px 44px;
  box-shadow:0 24px 60px rgba(0,0,0,.45);
}
.cta-panel::after{
  content:"";position:absolute;right:-120px;top:-120px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,227,196,.28),transparent 68%);
}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:34px;align-items:center;justify-content:space-between}
.cta-copy{max-width:620px}
.cta-copy h2{font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.3}
.cta-copy p{margin-top:14px;font-size:15px;color:var(--text-2)}
.cta-btns{display:flex;flex-wrap:wrap;gap:14px}
.share-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;position:relative;z-index:2}
.share-link{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 18px;
  border-radius:999px;font-size:14px;color:var(--text-2);
  border:1px solid rgba(150,220,255,.2);background:rgba(255,255,255,.03);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease);
}
.share-link:hover{color:var(--primary);border-color:rgba(47,227,196,.45);background:rgba(47,227,196,.08);transform:translateY(-2px)}
.share-link svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.6}

/* 订阅表单 */
.subscribe-panel{
  margin-top:var(--gap);
  display:flex;flex-wrap:wrap;gap:18px;align-items:flex-end;
  padding:24px;border-radius:var(--r-lg);
  border:1px solid var(--line);background:rgba(255,255,255,.03);
}
.field{flex:1 1 260px;min-width:220px}
.field label{display:block;font-size:13px;color:var(--text-3);margin-bottom:8px;letter-spacing:.04em}
.field input{
  width:100%;height:48px;padding:0 16px;border-radius:12px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  color:var(--text);transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field input::placeholder{color:var(--text-3)}
.field input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(47,227,196,.18)}
.field-note{flex:1 1 240px;font-size:13px;color:var(--text-3)}
.form-msg{margin-top:12px;font-size:13.5px;color:var(--primary);min-height:20px}

/* 页脚 */
.site-footer{
  background:var(--bg-2);
  border-top:1px solid var(--line-soft);
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,227,196,.5),rgba(192,75,255,.45),transparent);
}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;padding:64px 0 44px}
.foot-brand .brand{margin-bottom:16px}
.foot-brand p{font-size:14px;color:var(--text-2);max-width:30em}
.foot-col h4{font-size:14px;font-weight:600;letter-spacing:.06em;color:var(--text);margin-bottom:16px}
.foot-col li{margin-bottom:10px}
.foot-col a,.foot-col span{font-size:14px;color:var(--text-2)}
.foot-col a:hover{color:var(--primary)}
.foot-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  padding:20px 0 34px;border-top:1px solid var(--line-soft);
  font-size:13px;color:var(--text-3);
}
.foot-bottom .foot-tech{font-variant-numeric:tabular-nums;letter-spacing:.04em}

/* 响应式 */
@media screen and (max-width:1199px){
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1.3fr 1fr 1fr;gap:28px}
}
@media screen and (max-width:1023px){
  :root{--section:64px}
  .hero{padding:130px 0 68px}
  .nav-menu{
    position:fixed;left:16px;right:16px;top:88px;
    flex-direction:column;align-items:stretch;gap:4px;
    padding:14px;border-radius:22px;
    background:linear-gradient(180deg,rgba(10,15,30,.96),rgba(5,7,15,.96));
    border:1px solid var(--line);
    backdrop-filter:blur(16px) saturate(140%);
    -webkit-backdrop-filter:blur(16px) saturate(140%);
    box-shadow:0 24px 60px rgba(0,0,0,.55);
    display:none;
  }
  .nav-menu.is-open{display:flex}
  .nav-link{height:48px;padding:0 16px;font-size:15.5px;border-radius:14px}
  .nav-link::after{display:none}
  .nav-toggle{display:inline-flex}
  .nav-shell{justify-content:space-between}
  .nav-actions .btn{display:none}
  .hero-visual{margin-top:38px}
  .feature-main-body h3{font-size:19px}
}
@media screen and (max-width:767px){
  body{font-size:15.5px}
  .site-header{padding:12px 14px}
  .nav-shell{height:56px;padding:0 8px 0 16px}
  .brand{font-size:15px}
  .hero{padding:112px 0 56px;min-height:auto}
  .hero-sub{font-size:16px}
  .hero-btns .btn{width:100%}
  .pill{flex:1 1 calc(50% - 12px);min-width:0}
  .catalog-item{flex-wrap:wrap;gap:14px;padding:18px}
  .catalog-div{display:none}
  .catalog-num{width:auto}
  .catalog-tags{order:3}
  .catalog-arrow{margin-left:auto}
  .latest-card{flex-direction:row;gap:12px;padding:16px 12px}
  .latest-thumb{width:88px;height:66px}
  .stat-grid{grid-template-columns:1fr}
  .cta-panel{padding:36px 22px}
  .cta-btns .btn{width:100%}
  .foot-grid{grid-template-columns:1fr;gap:26px;padding:48px 0 34px}
  .faq-answer{padding:0 16px 18px 20px}
  .note-panel{flex-direction:column;gap:14px}
}
@media screen and (max-width:519px){
  .grid-container.page-container{padding-left:16px;padding-right:16px}
  .sec-head{margin-bottom:28px}
  .sec-num{font-size:24px}
  .feature-main-body{left:16px;right:16px;bottom:16px}
  .rail-card{width:230px}
}

/* roulang page: article */
:root{
  --c-primary:#2FE3C4;
  --c-primary-deep:#12A88F;
  --c-violet:#7A5CFF;
  --c-magenta:#C04BFF;
  --c-amber:#FFC24B;
  --bg-page:#05070F;
  --bg-block:#0A0F1E;
  --glass-line:rgba(150,220,255,.12);
  --glass-line-strong:rgba(150,220,255,.28);
  --t-main:#EAF2FF;
  --t-sub:#A7B6CE;
  --t-weak:#6C7C96;
  --r-card:18px;
  --r-sm:10px;
  --r-img:14px;
  --r-pill:999px;
  --sh-1:0 8px 24px rgba(0,0,0,.35);
  --sh-2:0 18px 46px rgba(0,0,0,.48);
  --sh-glow:0 0 0 1px rgba(47,227,196,.25),0 12px 40px rgba(47,227,196,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --dur:220ms;
  --maxw:1200px;
  --glass:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  --num-font:"Inter","DIN Alternate","SFMono-Regular",ui-monospace,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:
    radial-gradient(820px 520px at 6% -8%,rgba(47,227,196,.16),transparent 62%),
    radial-gradient(760px 520px at 102% 2%,rgba(122,92,255,.18),transparent 60%),
    var(--bg-page);
  color:var(--t-main);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(rgba(150,220,255,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(150,220,255,.06) 1px,transparent 1px);
  background-size:54px 54px;
  -webkit-mask-image:radial-gradient(1100px 620px at 50% -10%,#000 12%,transparent 76%);
  mask-image:radial-gradient(1100px 620px at 50% -10%,#000 12%,transparent 76%);
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;background-color:transparent;}
a:hover,a:focus{color:var(--c-primary);}
p{margin:0 0 1em;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--t-main);letter-spacing:.01em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,textarea{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;
  padding:12px 20px;border-radius:var(--r-pill);
  background:var(--c-primary);color:#04121B;font-weight:700;
}
.skip-link:focus{left:16px;top:16px;}
.grid-container.page-container{max-width:var(--maxw);padding-left:24px;padding-right:24px;}
.site-header{position:sticky;top:0;z-index:120;padding:16px 18px 0;}
.nav-shell{
  position:relative;
  max-width:1120px;
  margin:0 auto;
  min-height:64px;
  display:flex;
  align-items:center;
  gap:16px;
  padding:0 18px 0 20px;
  border-radius:var(--r-pill);
  background:linear-gradient(180deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid var(--glass-line);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--sh-1);
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:22px;height:22px;border-radius:7px;
  background:linear-gradient(135deg,var(--c-primary),var(--c-violet) 58%,var(--c-magenta));
  box-shadow:0 0 0 1px rgba(47,227,196,.35),0 6px 18px rgba(47,227,196,.28);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;inset:6px;border-radius:3px;background:#05070F;opacity:.72;
}
.brand-text{font-size:16.5px;font-weight:600;letter-spacing:.02em;color:var(--t-main);white-space:nowrap;}
.brand-text b{font-weight:800;color:var(--c-primary);}
.nav-menu{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  padding:9px 14px;
  border-radius:var(--r-pill);
  font-size:15px;color:var(--t-sub);
  border:1px solid transparent;
  transition:color var(--dur) var(--ease),background var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--c-primary),rgba(47,227,196,0));
  transform:scaleX(0);transform-origin:left center;
  transition:transform var(--dur) var(--ease);
}
.nav-link:hover{color:var(--t-main);background:rgba(255,255,255,.045);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--t-main);border-color:rgba(47,227,196,.45);background:rgba(47,227,196,.08);}
.nav-link.is-active::after{transform:scaleX(0);}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:8px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:var(--r-pill);
  align-items:center;justify-content:center;
  border:1px solid var(--glass-line);
  background:rgba(255,255,255,.045);
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  display:block;width:18px;height:2px;border-radius:2px;background:var(--t-main);
  transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease);
}
.nav-toggle span{position:relative;}
.nav-toggle span::before{content:"";position:absolute;top:-6px;left:0;}
.nav-toggle span::after{content:"";position:absolute;top:6px;left:0;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;
  border-radius:var(--r-pill);
  font-size:15.5px;font-weight:700;letter-spacing:.02em;
  border:1px solid transparent;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.btn-sm{min-height:42px;padding:0 20px;font-size:14.5px;}
.btn-primary{
  color:#04121B;
  background:linear-gradient(135deg,var(--c-primary),#3ef0d0 45%,var(--c-primary-deep));
  box-shadow:var(--sh-glow);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);color:#04121B;}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(47,227,196,.3),0 6px 18px rgba(47,227,196,.2);}
.btn-ghost{
  color:var(--t-main);
  border-color:var(--glass-line-strong);
  background:rgba(255,255,255,.02);
}
.btn-ghost:hover{background:rgba(255,255,255,.06);border-color:rgba(47,227,196,.4);color:var(--t-main);}
.btn-ghost:active{transform:translateY(1px);}
.badge{
  display:inline-flex;align-items:center;
  padding:4px 12px;
  border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.06em;
  border:1px solid var(--glass-line-strong);
  color:var(--t-sub);
  white-space:nowrap;
}
.badge-cat{
  color:#DCD3FF;
  border-color:rgba(122,92,255,.5);
  background:linear-gradient(135deg,rgba(122,92,255,.22),rgba(192,75,255,.14));
}
.badge-new{
  color:#BFF6EA;
  border-color:rgba(47,227,196,.45);
  background:rgba(47,227,196,.1);
}
.badge-pick{
  color:#FFE3AE;
  border-color:rgba(255,194,75,.45);
  background:rgba(255,194,75,.1);
}
main{position:relative;z-index:1;}
.article-hero{padding:44px 0 0;}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:var(--t-weak);
  max-width:1000px;margin:0 auto;
}
.crumbs a{color:var(--t-sub);transition:color var(--dur) var(--ease);}
.crumbs a:hover{color:var(--c-primary);}
.crumb-sep{opacity:.5;}
.crumb-current{
  max-width:min(520px,52vw);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  color:var(--t-weak);
}
.article-head{max-width:900px;margin:26px auto 0;}
.article-title{
  margin-top:16px;
  font-size:clamp(28px,3.6vw,44px);
  line-height:1.24;
  font-weight:700;
  letter-spacing:.01em;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;
  margin-top:18px;
  font-size:13.5px;color:var(--t-weak);
}
.article-meta b{font-family:var(--num-font);font-weight:600;color:var(--t-sub);font-variant-numeric:tabular-nums;}
.meta-dot{width:4px;height:4px;border-radius:50%;background:rgba(150,220,255,.35);}
.article-cover{
  position:relative;
  max-width:1000px;
  margin:30px auto 0;
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--glass-line);
  background:linear-gradient(135deg,#0A0F1E,#121C36);
  aspect-ratio:21/9;
  box-shadow:var(--sh-2);
}
.article-cover img{width:100%;height:100%;object-fit:cover;}
.article-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,7,15,0) 42%,rgba(5,7,15,.78) 100%);
}
.article-cover figcaption{
  position:absolute;left:22px;bottom:18px;z-index:2;
  font-size:13px;color:var(--t-sub);letter-spacing:.04em;
}
.article-wrap{padding:0 0 8px;}
.article-body{
  max-width:780px;
  margin:46px auto 0;
  font-size:17px;
  line-height:1.95;
  color:var(--t-main);
  word-break:break-word;
}
.article-body>*:first-child{margin-top:0;}
.article-body p{margin:0 0 1.25em;color:#DDE7F7;}
.article-body h2{
  position:relative;
  margin:48px 0 18px;
  padding:16px 0 0 18px;
  font-size:clamp(21px,2.4vw,28px);
  line-height:1.4;
  border-top:1px solid rgba(150,220,255,.14);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:22px;bottom:8px;width:3px;border-radius:2px;
  background:linear-gradient(180deg,var(--c-primary),var(--c-violet));
}
.article-body h3{margin:34px 0 14px;font-size:20px;font-weight:600;line-height:1.45;color:#F3F8FF;}
.article-body h4{margin:26px 0 12px;font-size:17px;font-weight:600;color:var(--t-sub);letter-spacing:.02em;}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:4px;}
.article-body ul li,.article-body ol li{
  position:relative;
  padding-left:22px;
  margin-bottom:10px;
  color:#DDE7F7;
}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.82em;width:7px;height:7px;border-radius:2px;
  background:linear-gradient(135deg,var(--c-primary),var(--c-violet));
  transform:translateY(-50%) rotate(45deg);
}
.article-body ol{counter-reset:item;}
.article-body ol li{counter-increment:item;}
.article-body ol li::before{
  content:counter(item);
  position:absolute;left:0;top:0;
  font-family:var(--num-font);font-size:13px;font-weight:700;color:var(--c-primary);
}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;transition:color var(--dur) var(--ease);}
.article-body a:hover{color:#8BF5E0;}
.article-body strong{color:#FFFFFF;font-weight:700;}
.article-body blockquote{
  margin:26px 0;
  padding:18px 22px;
  border-left:3px solid var(--c-primary);
  border-radius:0 var(--r-img) var(--r-img) 0;
  background:var(--glass);
  color:var(--t-sub);
  font-size:16.5px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-img);margin:14px 0;height:auto;}
.article-body figure{margin:24px 0;}
.article-body hr{border:0;height:1px;margin:34px 0;background:linear-gradient(90deg,rgba(150,220,255,.24),rgba(150,220,255,0));}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;}
.article-body th,.article-body td{padding:12px 14px;border:1px solid rgba(150,220,255,.14);text-align:left;}
.article-body th{background:rgba(255,255,255,.045);color:var(--t-main);font-weight:600;}
.article-body td{color:var(--t-sub);}
.article-body code{
  font-family:var(--num-font);font-size:.92em;
  padding:2px 7px;border-radius:6px;
  background:rgba(47,227,196,.1);color:#8BF5E0;
}
.empty-state{
  max-width:620px;
  margin:52px auto 0;
  padding:52px 30px;
  text-align:center;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--glass-line);
  min-height:260px;
}
.empty-icon{
  display:block;width:52px;height:52px;margin:0 auto 20px;border-radius:16px;
  border:1px dashed rgba(47,227,196,.5);
  background:radial-gradient(circle at 50% 50%,rgba(47,227,196,.2),transparent 70%);
}
.empty-state h2{font-size:24px;margin-bottom:12px;}
.empty-state p{color:var(--t-sub);margin-bottom:26px;}
.section-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:14px;margin-bottom:26px;}
.section-head .num{
  font-family:var(--num-font);font-size:34px;font-weight:800;line-height:1;
  color:transparent;-webkit-text-stroke:1px rgba(47,227,196,.6);
}
.section-head .rule{width:34px;height:1px;background:linear-gradient(90deg,var(--c-primary),rgba(47,227,196,0));align-self:center;}
.section-head h2{font-size:clamp(22px,2.4vw,30px);line-height:1.3;}
.section-sub{flex:1 1 260px;color:var(--t-weak);font-size:14px;margin:0;}
.related-section{padding:74px 0 0;}
.related-grid .rel-card{margin-bottom:24px;}
.rel-card{
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--glass-line);
  overflow:hidden;
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(47,227,196,.35);box-shadow:var(--sh-2);}
.rel-link{display:block;height:100%;}
.rel-thumb{position:relative;aspect-ratio:3/2;background:linear-gradient(135deg,#0A0F1E,#141F3B);overflow:hidden;}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--ease);}
.rel-card:hover .rel-thumb img{transform:scale(1.04);}
.rel-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,7,15,0) 45%,rgba(5,7,15,.7) 100%);}
.rel-body{padding:20px 22px 22px;}
.rel-body h3{
  margin:12px 0 10px;
  font-size:17.5px;font-weight:600;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-card:hover .rel-body h3{color:var(--c-primary);}
.rel-body p{
  margin:0 0 14px;
  font-size:14px;line-height:1.7;color:var(--t-sub);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-date{font-family:var(--num-font);font-size:13px;color:var(--t-weak);font-variant-numeric:tabular-nums;}
.back-row{
  max-width:780px;margin:44px auto 0;
  display:flex;flex-wrap:wrap;align-items:center;gap:16px;
}
.link-plain{color:var(--t-sub);font-size:14.5px;border-bottom:1px solid rgba(150,220,255,.3);transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease);}
.link-plain:hover{color:var(--c-primary);border-color:var(--c-primary);}
.article-cta{padding:80px 0 0;}
.cta-panel{
  position:relative;
  overflow:hidden;
  border-radius:26px;
  padding:46px 44px;
  background:
    radial-gradient(620px 320px at 8% 0%,rgba(47,227,196,.18),transparent 62%),
    radial-gradient(560px 320px at 96% 100%,rgba(122,92,255,.22),transparent 62%),
    var(--glass);
  border:1px solid var(--glass-line);
  box-shadow:var(--sh-1);
}
.cta-inner{display:flex;flex-wrap:wrap;gap:32px;align-items:center;justify-content:space-between;}
.cta-copy{flex:1 1 420px;min-width:280px;}
.eyebrow{
  display:inline-block;margin-bottom:14px;
  font-size:12px;font-weight:700;letter-spacing:.16em;color:var(--c-primary);
  text-transform:none;
}
.cta-copy h2{font-size:clamp(22px,2.5vw,30px);line-height:1.35;margin-bottom:14px;}
.cta-copy p{color:var(--t-sub);font-size:15px;margin:0;}
.cta-actions{flex:0 1 340px;min-width:260px;display:flex;flex-wrap:wrap;gap:14px;}
.cta-actions .btn{flex:1 1 auto;}
.share-row{display:flex;flex-wrap:wrap;gap:10px;width:100%;margin-top:6px;}
.share-chip{
  display:inline-flex;align-items:center;
  min-height:40px;padding:0 16px;
  border-radius:var(--r-pill);
  font-size:13.5px;color:var(--t-sub);
  border:1px solid var(--glass-line);
  background:rgba(255,255,255,.03);
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.share-chip:hover{color:var(--c-primary);border-color:rgba(47,227,196,.45);background:rgba(47,227,196,.08);}
.site-footer{
  margin-top:96px;
  padding:64px 0 34px;
  position:relative;
  background:linear-gradient(180deg,rgba(10,15,30,0),rgba(10,15,30,.9) 30%,#070B16 100%);
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(47,227,196,0),rgba(47,227,196,.5) 22%,rgba(122,92,255,.5) 68%,rgba(122,92,255,0));
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px;}
.foot-brand .brand{margin-bottom:16px;}
.foot-brand p{color:var(--t-weak);font-size:14px;line-height:1.8;max-width:340px;margin:0;}
.foot-col h4{
  font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--t-main);
  margin-bottom:16px;
}
.foot-col ul li{margin-bottom:12px;}
.foot-col ul li a,.foot-col ul li span{
  font-size:14px;color:var(--t-sub);
  transition:color var(--dur) var(--ease);
}
.foot-col ul li a:hover{color:var(--c-primary);}
.foot-bottom{
  margin-top:52px;padding-top:22px;
  border-top:1px solid rgba(150,220,255,.1);
  display:flex;flex-wrap:wrap;gap:10px 20px;justify-content:space-between;align-items:center;
}
.foot-bottom p{margin:0;font-size:13px;color:var(--t-weak);}
.foot-tech{font-family:var(--num-font);letter-spacing:.06em;color:#4C5A72;}
@media (max-width:1199px){
  .nav-link{padding:9px 11px;font-size:14.5px;}
  .cta-panel{padding:40px 32px;}
}
@media (max-width:1023px){
  .nav-toggle{display:inline-flex;}
  .nav-menu{
    position:absolute;left:0;right:0;top:calc(100% + 10px);
    display:none;
    flex-direction:column;align-items:stretch;gap:4px;
    padding:14px;
    border-radius:22px;
    background:rgba(8,12,24,.97);
    border:1px solid var(--glass-line);
    -webkit-backdrop-filter:blur(16px);
    backdrop-filter:blur(16px);
    box-shadow:var(--sh-2);
    margin-left:0;
  }
  .nav-menu.is-open{display:flex;}
  .nav-link{min-height:44px;padding:12px 14px;font-size:15px;}
  .nav-link::after{display:none;}
  .nav-actions{margin-left:auto;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .foot-brand{grid-column:1 / -1;}
  .site-footer{margin-top:72px;}
  .related-section{padding-top:58px;}
  .article-cta{padding-top:58px;}
}
@media (max-width:767px){
  .grid-container.page-container{padding-left:18px;padding-right:18px;}
  .site-header{padding:12px 12px 0;}
  .nav-shell{min-height:56px;padding:0 12px 0 16px;}
  .brand-text{font-size:15.5px;}
  .article-hero{padding-top:28px;}
  .article-title{-webkit-line-clamp:3;}
  .article-cover{aspect-ratio:16/9;margin-top:22px;}
  .article-body{font-size:16px;line-height:1.9;margin-top:32px;}
  .article-body h2{margin-top:38px;}
  .article-body blockquote{padding:14px 16px;}
  .cta-panel{padding:30px 22px;border-radius:20px;}
  .cta-actions{flex:1 1 100%;}
  .cta-actions .btn{flex:1 1 100%;min-height:44px;}
  .back-row .btn{min-height:44px;width:100%;}
  .foot-grid{grid-template-columns:1fr;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .nav-actions .btn-sm{display:none;}
  .article-meta{font-size:13px;gap:8px 12px;}
  .section-head .num{font-size:28px;}
  .crumb-current{max-width:64vw;}
}

/* roulang page: category1 */
:root{
  --brand:#2FE3C4;
  --brand-deep:#12A88F;
  --purple:#7A5CFF;
  --purple-2:#C04BFF;
  --amber:#FFC24B;
  --bg:#05070F;
  --bg-block:#0A0F1E;
  --glass:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  --line:rgba(150,220,255,.12);
  --line-strong:rgba(150,220,255,.28);
  --text:#EAF2FF;
  --text-2:#A7B6CE;
  --text-3:#6C7C96;
  --r-card:18px;
  --r-sm:10px;
  --r-img:14px;
  --r-pill:999px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --shadow-glow:0 0 0 1px rgba(47,227,196,.25),0 12px 40px rgba(47,227,196,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease),border-color .22s var(--ease),background-color .22s var(--ease)}
a:hover{color:var(--brand)}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
button{font:inherit;cursor:pointer;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.page-container{max-width:1200px;margin:0 auto;padding:0 20px}
.num{font-family:Inter,"DIN Alternate","Bahnschrift",ui-monospace,monospace;font-variant-numeric:tabular-nums}

/* ============ 顶部悬浮胶囊导航 ============ */
.site-header{position:sticky;top:0;z-index:80;padding:16px 16px 0}
.nav-shell{
  position:relative;max-width:1120px;margin:0 auto;height:64px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:0 10px 0 18px;border-radius:var(--r-pill);
  background:rgba(8,12,24,.74);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:0 10px 32px rgba(0,0,0,.42);
}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;letter-spacing:.01em;font-size:16px;color:var(--text);flex:0 0 auto}
.brand:hover{color:var(--text)}
.brand-mark{
  width:24px;height:24px;border-radius:8px;flex:0 0 auto;
  background:conic-gradient(from 210deg,#2FE3C4,#7A5CFF,#C04BFF,#2FE3C4);
  box-shadow:0 0 0 1px rgba(47,227,196,.35),0 0 18px rgba(47,227,196,.35);
  position:relative;
}
.brand-mark::after{content:"";position:absolute;inset:7px;border-radius:3px;background:#05070F}
.brand-text b{color:var(--brand);font-weight:700}
.nav-menu{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:8px 12px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:15px;color:var(--text-2);white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--purple));
  transform:scaleX(0);transform-origin:left center;transition:transform .26s var(--ease);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{
  color:var(--text);border-color:rgba(47,227,196,.5);
  background:rgba(47,227,196,.08);box-shadow:0 0 0 1px rgba(47,227,196,.14);
}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:2px;border-radius:2px;background:var(--text);
  transform:translateX(-50%);transition:transform .24s var(--ease),opacity .2s var(--ease);
}
.nav-toggle span{top:21px}
.nav-toggle span::before{content:"";top:-6px;left:0;transform:none}
.nav-toggle span::after{content:"";top:6px;left:0;transform:none}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-pill);
  border:1px solid transparent;font-size:15px;font-weight:600;
  transition:transform .22s var(--ease),filter .22s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease),border-color .22s var(--ease);
  white-space:nowrap;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-primary{
  background:linear-gradient(135deg,#5CF2DA,#2FE3C4 46%,#12A88F);
  color:#04121B;
  box-shadow:var(--shadow-glow);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);color:#04121B}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(47,227,196,.3),0 6px 18px rgba(47,227,196,.16)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text)}
.btn-ghost:hover{background:rgba(255,255,255,.06);color:var(--text);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}

/* ============ 通用版式 ============ */
.section{padding:92px 0}
.section-alt{background:var(--bg-block);border-top:1px solid rgba(150,220,255,.07);border-bottom:1px solid rgba(150,220,255,.07)}
.sec-head{max-width:740px;margin-bottom:44px}
.sec-kicker{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.06em;color:var(--brand);
  border:1px solid rgba(47,227,196,.3);background:rgba(47,227,196,.07);
}
.sec-head h2{
  position:relative;margin-top:18px;padding-left:18px;
  font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.3;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--purple-2),var(--brand));
}
.sec-head p{margin-top:16px;color:var(--text-2);font-size:15px;max-width:640px}
.lead{color:var(--text-2);font-size:16px}

/* ============ 首屏横幅 ============ */
.hero-banner{padding:26px 0 0}
.hero-panel{
  position:relative;overflow:hidden;border-radius:26px;
  border:1px solid var(--line);
  padding:56px 48px 52px;
  background-image:
    linear-gradient(115deg,rgba(5,7,15,.95) 0%,rgba(5,7,15,.72) 48%,rgba(5,7,15,.9) 100%),
    url(/assets/images/backpic/back-1.webp);
  background-size:cover;background-position:center;
}
.hero-panel::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(520px 320px at 6% 0%,rgba(47,227,196,.20),transparent 62%),
    radial-gradient(520px 360px at 100% 100%,rgba(122,92,255,.24),transparent 64%);
}
.hero-panel::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.06;
  background-image:linear-gradient(rgba(255,255,255,.9) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:48px 48px;
}
.hero-inner{position:relative;z-index:2;max-width:760px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--text-3);margin-bottom:22px}
.crumb a{color:var(--text-3)}
.crumb a:hover{color:var(--brand)}
.crumb span.dot{width:4px;height:4px;border-radius:50%;background:var(--text-3);display:inline-block}
.hero-panel h1{
  font-size:clamp(30px,4.2vw,52px);font-weight:700;line-height:1.18;letter-spacing:-.01em;
}
.hero-panel h1 em{font-style:normal;color:var(--brand)}
.hero-sub{margin-top:16px;font-size:17px;color:var(--text-2);max-width:560px}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-pills{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.pill{
  display:inline-flex;flex-direction:column;gap:2px;
  padding:12px 18px;border-radius:14px;border:1px solid var(--line);
  background:var(--glass);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  min-width:132px;
}
.pill b{font-size:20px;font-weight:700;color:var(--brand);line-height:1.2}
.pill span{font-size:12px;color:var(--text-3);letter-spacing:.04em}

/* ============ 适用人群 ============ */
.fit-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:44px;align-items:center}
.fit-fig{
  position:relative;border-radius:20px;overflow:hidden;aspect-ratio:16/10;
  border:1px solid var(--line);background:linear-gradient(140deg,#0d1526,#131c30);
}
.fit-fig img{width:100%;height:100%;object-fit:cover}
.fit-fig::after{content:"";position:absolute;inset:auto 0 0 0;height:46%;background:linear-gradient(180deg,transparent,rgba(5,7,15,.85))}
.fit-list{display:flex;flex-direction:column;gap:18px;margin-top:26px}
.fit-item{display:flex;gap:14px;align-items:flex-start}
.fit-dot{
  flex:0 0 auto;width:34px;height:34px;border-radius:12px;display:grid;place-items:center;
  border:1px solid rgba(47,227,196,.3);background:rgba(47,227,196,.08);color:var(--brand);
  font-size:14px;font-weight:700;
}
.fit-item h3{font-size:17px;font-weight:600;line-height:1.4}
.fit-item p{font-size:14px;color:var(--text-2);margin-top:4px;line-height:1.75}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.06em;
  border:1px solid rgba(150,220,255,.24);color:var(--text-2);background:rgba(255,255,255,.03);
}
.tag-violet{border-color:rgba(192,75,255,.42);color:#E3CBFF;background:rgba(122,92,255,.14)}
.tag-brand{border-color:rgba(47,227,196,.42);color:#B7F6EA;background:rgba(47,227,196,.1)}
.tag-amber{border-color:rgba(255,194,75,.45);color:#FFDDA0;background:rgba(255,194,75,.1)}

/* ============ 阶梯步骤 ============ */
.step-list{display:flex;flex-direction:column;gap:26px}
.step-item{display:grid;grid-template-columns:104px minmax(0,1fr);gap:22px;align-items:start}
.step-item:nth-child(2n) .step-body{margin-left:44px}
.step-item:nth-child(3n) .step-body{margin-left:22px}
.step-num{
  font-size:66px;font-weight:800;line-height:1;letter-spacing:-.03em;
  color:transparent;-webkit-text-stroke:1.5px rgba(47,227,196,.5);
  font-family:Inter,"DIN Alternate",ui-monospace,monospace;
  padding-top:6px;
}
.step-body{
  display:grid;grid-template-columns:290px minmax(0,1fr);gap:24px;padding:20px;
  border-radius:var(--r-card);border:1px solid var(--line);background:var(--glass);
  -webkit-backdrop-filter:blur(14px) saturate(140%);backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.step-body:hover{transform:translateY(-4px);border-color:rgba(47,227,196,.35);box-shadow:var(--shadow-glow)}
.step-fig{
  border-radius:var(--r-img);overflow:hidden;aspect-ratio:3/2;
  background:linear-gradient(140deg,#0d1526,#151f34);border:1px solid rgba(150,220,255,.1);
}
.step-fig img{width:100%;height:100%;object-fit:cover}
.step-text h3{font-size:20px;font-weight:600;line-height:1.4}
.step-text p{margin-top:12px;font-size:15px;color:var(--text-2);line-height:1.8}
.step-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.link-more{
  display:inline-flex;align-items:center;gap:6px;margin-top:16px;
  font-size:14px;font-weight:600;color:var(--brand);
  border-bottom:1px solid rgba(47,227,196,.35);padding-bottom:2px;
}
.link-more:hover{color:#7FF3DE;border-color:#7FF3DE}
.link-more svg{width:14px;height:14px;flex:0 0 auto}

/* ============ 准备清单（时间轴） ============ */
.prep-wrap{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:48px;align-items:start}
.prep-side{position:sticky;top:104px}
.prep-side h2{position:relative;padding-left:18px;font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.3}
.prep-side h2::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:4px;background:linear-gradient(180deg,var(--purple-2),var(--brand))}
.prep-side p{margin-top:16px;color:var(--text-2);font-size:15px}
.mini-card{
  margin-top:26px;padding:20px;border-radius:var(--r-card);border:1px solid var(--line);
  background:var(--glass);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.mini-card h4{font-size:15px;font-weight:600;margin-bottom:10px}
.mini-card p{font-size:14px;color:var(--text-2);line-height:1.8}
.prep-list{position:relative;padding-left:30px;border-left:1px solid rgba(150,220,255,.16)}
.prep-item{
  position:relative;padding:18px 22px;margin-bottom:14px;border-radius:14px;
  border:1px solid var(--line);background:var(--glass);
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.prep-item:hover{transform:translateX(4px);border-color:rgba(47,227,196,.32)}
.prep-item::before{
  content:"";position:absolute;left:-36px;top:26px;width:10px;height:10px;border-radius:50%;
  background:var(--brand);box-shadow:0 0 0 4px rgba(47,227,196,.16);
}
.prep-item h3{font-size:16px;font-weight:600;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.prep-item p{margin-top:8px;font-size:14px;color:var(--text-2);line-height:1.8}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto}
.faq-list{display:flex;flex-direction:column;gap:12px;margin-top:36px}
.faq-item{
  border-radius:14px;border:1px solid var(--line);background:var(--glass);overflow:hidden;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-item.is-open{border-color:rgba(47,227,196,.3);box-shadow:0 0 0 1px rgba(47,227,196,.12)}
.faq-q{
  width:100%;min-height:48px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:14px 20px;background:transparent;border:0;text-align:left;
  font-size:16px;font-weight:600;color:var(--text);
}
.faq-q:hover{color:var(--brand)}
.faq-icon{position:relative;flex:0 0 auto;width:18px;height:18px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:0;top:8px;width:18px;height:2px;border-radius:2px;background:var(--brand);
  transition:transform .28s var(--ease);
}
.faq-icon::after{transform:rotate(90deg)}
.faq-item.is-open .faq-icon::after{transform:rotate(0deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-a p{padding:0 20px 20px 20px;font-size:14px;line-height:1.8;color:var(--text-2)}

/* ============ 交叉推荐 ============ */
.cross-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.cross-pill{
  display:inline-flex;align-items:center;gap:9px;padding:13px 22px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:var(--glass);font-size:14px;color:var(--text-2);
  transition:transform .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
}
.cross-pill:hover{transform:translateY(-2px);border-color:rgba(47,227,196,.42);color:var(--text)}
.cross-pill i{width:7px;height:7px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--purple));display:inline-block}

/* ============ CTA 面板 ============ */
.cta-panel{
  position:relative;overflow:hidden;border-radius:26px;padding:52px 44px;text-align:center;
  border:1px solid var(--line);
  background:linear-gradient(135deg,rgba(47,227,196,.1),rgba(122,92,255,.16));
  -webkit-backdrop-filter:blur(14px) saturate(140%);backdrop-filter:blur(14px) saturate(140%);
}
.cta-panel::before{
  content:"";position:absolute;inset:0;opacity:.06;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.9) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:40px 40px;
}
.cta-panel > *{position:relative;z-index:2}
.cta-panel h2{font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.3}
.cta-panel p{margin-top:14px;color:var(--text-2);font-size:15px;max-width:620px;margin-left:auto;margin-right:auto}
.cta-btns{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:30px}

/* ============ 页脚 ============ */
.site-footer{position:relative;margin-top:48px;background:var(--bg-block)}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,227,196,.6),rgba(122,92,255,.6),transparent);
}
.foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:34px;padding:58px 0 34px}
.foot-brand p{margin-top:16px;font-size:14px;color:var(--text-2);max-width:330px;line-height:1.8}
.foot-col h4{font-size:14px;font-weight:600;letter-spacing:.06em;color:var(--text);margin-bottom:16px}
.foot-col ul li{margin-bottom:11px;font-size:14px;color:var(--text-2)}
.foot-col ul li a:hover{color:var(--brand)}
.foot-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding:20px 0 34px;border-top:1px solid rgba(150,220,255,.1);
  font-size:13px;color:var(--text-3);
}
.foot-tech{letter-spacing:.04em}

/* ============ 响应式 ============ */
@media screen and (max-width:1199px){
  .nav-link{padding:8px 9px;font-size:14px}
  .fit-grid{gap:32px}
}
@media screen and (max-width:1023px){
  .section{padding:64px 0}
  .nav-toggle{display:block}
  .nav-menu{
    display:none;position:absolute;top:calc(100% + 12px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;padding:12px;
    border-radius:24px;border:1px solid var(--line);background:rgba(8,12,24,.97);
    -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
    box-shadow:0 20px 46px rgba(0,0,0,.5);
  }
  .nav-menu.is-open{display:flex}
  .nav-link{min-height:46px;padding:12px 16px;font-size:15px}
  .nav-link::after{display:none}
  .nav-shell{height:60px}
  .hero-panel{padding:44px 32px}
  .fit-grid{grid-template-columns:1fr;gap:28px}
  .step-item{grid-template-columns:80px minmax(0,1fr);gap:16px}
  .step-item:nth-child(2n) .step-body,
  .step-item:nth-child(3n) .step-body{margin-left:0}
  .step-num{font-size:52px}
  .step-body{grid-template-columns:1fr}
  .step-fig{aspect-ratio:2/1}
  .prep-wrap{grid-template-columns:1fr;gap:32px}
  .prep-side{position:static}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media screen and (max-width:639px){
  body{font-size:15px}
  .section{padding:48px 0}
  .site-header{padding:12px 12px 0}
  .nav-shell{padding:0 8px 0 14px}
  .brand{font-size:15px}
  .btn{height:44px;padding:0 20px}
  .btn-sm{height:40px;padding:0 16px}
  .hero-banner{padding:16px 0 0}
  .hero-panel{padding:32px 20px;border-radius:20px}
  .hero-sub{font-size:15px}
  .hero-btns{gap:10px}
  .hero-btns .btn{width:100%}
  .hero-pills{gap:10px;margin-top:26px}
  .pill{min-width:calc(50% - 5px);flex:1 1 auto;padding:10px 14px}
  .sec-head{margin-bottom:30px}
  .step-item{grid-template-columns:1fr;gap:10px}
  .step-num{font-size:40px;padding-top:0}
  .step-body{padding:16px}
  .prep-list{padding-left:20px}
  .prep-item::before{left:-26px}
  .cta-panel{padding:36px 20px;border-radius:20px}
  .cta-btns .btn{width:100%}
  .foot-grid{grid-template-columns:1fr;gap:26px;padding:40px 0 24px}
  .foot-bottom{flex-direction:column;gap:6px}
}

/* roulang page: category3 */
:root{
  --bg:#05070f;
  --bg-soft:#0a0f1e;
  --glass:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  --line:rgba(150,220,255,.12);
  --line-strong:rgba(47,227,196,.35);
  --mint:#2fe3c4;
  --mint-deep:#12a88f;
  --violet:#7a5cff;
  --violet-2:#c04bff;
  --amber:#ffc24b;
  --text:#eaf2ff;
  --text-2:#a7b6ce;
  --text-3:#6c7c96;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --glow:0 0 0 1px rgba(47,227,196,.25),0 12px 40px rgba(47,227,196,.18);
  --r-lg:18px;
  --r-sm:10px;
  --r-pill:999px;
  --gap:24px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:14px}
a{color:inherit;text-decoration:none}
a:hover{color:var(--mint)}
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;font-weight:700;line-height:1.3;letter-spacing:.01em}
p{margin:0}
input,textarea{font:inherit}
:focus-visible{outline:2px solid var(--mint);outline-offset:2px;border-radius:6px}
.page-container{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;letter-spacing:.02em}

/* ---------- header / 悬浮胶囊导航 ---------- */
.site-header{position:fixed;top:16px;left:0;right:0;z-index:60;padding:0 16px}
.nav-shell{
  max-width:1120px;margin:0 auto;height:64px;
  display:flex;align-items:center;gap:18px;
  padding:0 14px 0 18px;
  border-radius:var(--r-pill);
  background:linear-gradient(180deg,rgba(10,15,30,.86),rgba(10,15,30,.66));
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:0 12px 34px rgba(0,0,0,.42);
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:26px;height:26px;border-radius:9px;display:inline-block;
  background:linear-gradient(135deg,var(--mint),var(--violet-2));
  box-shadow:0 0 0 1px rgba(255,255,255,.12),0 6px 18px rgba(47,227,196,.28);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;inset:7px;border-radius:50%;
  background:rgba(5,7,15,.85);
}
.brand-text{font-size:16px;font-weight:600;letter-spacing:.02em;color:var(--text);white-space:nowrap}
.brand-text b{font-weight:700;color:var(--mint)}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:6px;flex:1 1 auto;min-width:0}
.nav-link{
  position:relative;padding:9px 13px;border-radius:var(--r-pill);
  font-size:14px;color:var(--text-2);white-space:nowrap;
  border:1px solid transparent;transition:color .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:13px;right:13px;bottom:4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--mint),var(--violet-2));
  transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{
  color:var(--text);border-color:var(--line-strong);
  background:rgba(47,227,196,.10);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:16px;height:2px;background:var(--text);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:var(--text);border-radius:2px;
}
.nav-toggle span::before{top:-5px}
.nav-toggle span::after{top:5px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),filter .2s var(--ease);
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-primary{
  color:#04121b;
  background:linear-gradient(120deg,var(--mint),#63f0d6 55%,var(--violet));
  box-shadow:var(--glow);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);color:#04121b}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(47,227,196,.25),0 6px 18px rgba(47,227,196,.16)}
.btn-ghost{
  color:var(--text);border:1px solid rgba(150,220,255,.28);
  background:rgba(255,255,255,.02);
}
.btn-ghost:hover{background:rgba(255,255,255,.06);border-color:rgba(150,220,255,.45);color:var(--text)}
.btn-ghost:active{transform:translateY(1px)}

/* ---------- 内页 Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:140px 0 76px;
  border-bottom:1px solid rgba(150,220,255,.08);
  background:var(--bg-soft);
}
.page-hero .hero-media{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.34;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(760px 420px at 8% 4%,rgba(47,227,196,.24),transparent 62%),
    radial-gradient(700px 460px at 96% 96%,rgba(192,75,255,.22),transparent 64%);
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(234,242,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(234,242,255,.06) 1px,transparent 1px);
  background-size:44px 44px;
  opacity:.5;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.85),rgba(0,0,0,.15));
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.85),rgba(0,0,0,.15));
}
.hero-inner{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:18px}
.breadcrumb a:hover{color:var(--mint)}
.breadcrumb span{color:var(--text-3)}
.page-hero h1{
  font-size:clamp(30px,4.2vw,52px);font-weight:700;line-height:1.18;
  max-width:14em;
}
.page-hero h1 em{font-style:normal;color:var(--mint)}
.hero-sub{margin-top:18px;font-size:17px;color:var(--text-2);max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.stat-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(12px) saturate(140%);
  -webkit-backdrop-filter:blur(12px) saturate(140%);
  font-size:13px;color:var(--text-2);
}
.stat-pill b{color:var(--mint);font-weight:700;font-variant-numeric:tabular-nums}

/* ---------- 板块 ---------- */
.section{padding:96px 0}
.section-alt{background:var(--bg-soft);border-top:1px solid rgba(150,220,255,.07);border-bottom:1px solid rgba(150,220,255,.07)}
.sec-head{display:flex;gap:20px;align-items:flex-start;margin-bottom:40px}
.sec-num{
  font-size:52px;line-height:1;font-weight:700;color:transparent;
  -webkit-text-stroke:1px rgba(47,227,196,.52);
  flex:0 0 auto;
}
.sec-head h2{font-size:clamp(24px,2.6vw,34px);line-height:1.3}
.sec-head p{margin-top:12px;color:var(--text-2);max-width:42em;font-size:15px}
.sec-head .bar{width:3px;border-radius:3px;background:linear-gradient(180deg,var(--violet),var(--violet-2));align-self:stretch}

/* ---------- 筛选胶囊 ---------- */
.filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:34px}
.chip{
  padding:8px 16px;border-radius:var(--r-pill);font-size:13px;font-weight:600;letter-spacing:.04em;
  border:1px solid var(--line);color:var(--text-2);background:rgba(255,255,255,.02);
  transition:all .2s var(--ease);
}
.chip:hover{color:var(--text);border-color:var(--line-strong);background:rgba(47,227,196,.08)}
.chip.is-on{color:#04121b;background:linear-gradient(120deg,var(--mint),#63f0d6);border-color:transparent}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;padding-left:34px}
.timeline::before{
  content:"";position:absolute;left:7px;top:6px;bottom:6px;width:1px;
  background:linear-gradient(180deg,rgba(47,227,196,.55),rgba(122,92,255,.42),rgba(47,227,196,.05));
}
.tl-month{
  position:relative;margin:0 0 20px;font-size:13px;font-weight:600;letter-spacing:.16em;
  color:var(--text-3);text-transform:uppercase;
}
.tl-month::before{
  content:"";position:absolute;left:-34px;top:9px;width:9px;height:9px;border-radius:50%;
  background:var(--mint);box-shadow:0 0 0 4px rgba(47,227,196,.16);
}
.tl-item{position:relative;margin-bottom:18px}
.tl-item::before{
  content:"";position:absolute;left:-30px;top:26px;width:7px;height:7px;border-radius:50%;
  background:var(--bg);border:1px solid var(--mint);box-shadow:0 0 12px rgba(47,227,196,.6);
}
.tl-card{
  padding:22px 24px;border-radius:var(--r-lg);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.tl-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 0 0 1px rgba(47,227,196,.25),0 18px 44px rgba(0,0,0,.46)}
.tl-top{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:12px}
.tl-date{
  font-size:15px;font-weight:700;color:var(--mint);
  font-variant-numeric:tabular-nums;letter-spacing:.04em;
}
.tl-card h3{font-size:20px;font-weight:600;line-height:1.4}
.tl-card p{margin-top:10px;color:var(--text-2);font-size:15px}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tl-foot{margin-top:16px;padding-top:14px;border-top:1px solid rgba(150,220,255,.1);display:flex;flex-wrap:wrap;gap:10px 22px;font-size:13px;color:var(--text-3)}
.tl-foot b{color:var(--text-2);font-weight:600}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.06em;
  border:1px solid transparent;
}
.badge-mint{color:var(--mint);border-color:rgba(47,227,196,.42);background:rgba(47,227,196,.09)}
.badge-violet{color:#d6c7ff;border-color:rgba(192,75,255,.45);background:rgba(122,92,255,.16)}
.badge-amber{color:var(--amber);border-color:rgba(255,194,75,.42);background:rgba(255,194,75,.10)}

/* ---------- 重点活动 ---------- */
.focus-wrap{display:grid;grid-template-columns:1.15fr 1fr;gap:34px;align-items:center}
.focus-media{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);background:#0b1224;aspect-ratio:16/10}
.focus-media img{width:100%;height:100%;object-fit:cover;border-radius:0}
.focus-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,7,15,0) 42%,rgba(5,7,15,.78))}
.focus-media .focus-cap{position:absolute;left:20px;bottom:18px;z-index:2;font-size:13px;color:var(--text-2)}
.focus-body h2{font-size:clamp(22px,2.4vw,30px);line-height:1.35}
.focus-body p{margin-top:16px;color:var(--text-2);font-size:15px}
.focus-list{margin-top:22px;display:grid;gap:12px}
.focus-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 16px;border-radius:12px;
  background:rgba(255,255,255,.03);border:1px solid rgba(150,220,255,.09);
  font-size:14px;color:var(--text-2);
}
.focus-list li i{
  flex:0 0 auto;width:6px;height:6px;border-radius:50%;margin-top:9px;
  background:var(--violet-2);box-shadow:0 0 10px rgba(192,75,255,.7);
}

/* ---------- 更新节奏 ---------- */
.rhythm-wrap{display:grid;grid-template-columns:0.85fr 1.15fr;gap:40px;align-items:start}
.rhythm-note{padding:24px;border-radius:var(--r-lg);background:var(--glass);border:1px solid var(--line)}
.rhythm-note h3{font-size:20px}
.rhythm-note p{margin-top:12px;color:var(--text-2);font-size:15px}
.rhythm-note .vr{width:1px;height:36px;background:linear-gradient(180deg,var(--mint),transparent);margin:20px 0 4px}
.rhythm-rows{display:grid;gap:16px}
.rhythm-row{
  display:grid;grid-template-columns:76px 1fr;gap:20px;align-items:center;
  padding:20px 22px;border-radius:14px;
  background:rgba(255,255,255,.03);border:1px solid var(--line);
  transition:border-color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease);
}
.rhythm-row:hover{border-color:var(--line-strong);background:rgba(47,227,196,.06);transform:translateX(4px)}
.rhythm-row .rn{
  font-size:30px;font-weight:700;line-height:1;color:transparent;
  -webkit-text-stroke:1px rgba(122,92,255,.7);
  font-variant-numeric:tabular-nums;
}
.rhythm-row h4{font-size:16px;font-weight:600}
.rhythm-row p{margin-top:6px;color:var(--text-2);font-size:14px}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{
  border-radius:14px;overflow:hidden;
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  transition:border-color .22s var(--ease);
}
.faq-item.is-open{border-color:rgba(47,227,196,.42)}
.faq-q{
  width:100%;min-height:48px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:14px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--text);
}
.faq-q .plus{
  flex:0 0 auto;width:22px;height:22px;position:relative;border-radius:50%;
  border:1px solid rgba(150,220,255,.3);transition:transform .26s var(--ease),border-color .26s var(--ease);
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--mint);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-q .plus::before{width:10px;height:2px}
.faq-q .plus::after{width:2px;height:10px;transition:opacity .2s var(--ease)}
.faq-item.is-open .plus{transform:rotate(180deg);border-color:rgba(47,227,196,.6)}
.faq-item.is-open .plus::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-a p{padding:0 20px 20px 22px;color:var(--text-2);font-size:14px;line-height:1.8}
.faq-item.is-open .faq-a{max-height:260px}

/* ---------- 交叉推荐 + CTA ---------- */
.cross-links{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:44px}
.cross-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 20px;border-radius:var(--r-pill);
  font-size:14px;color:var(--text-2);
  border:1px solid var(--line);background:rgba(255,255,255,.02);
  transition:all .2s var(--ease);
}
.cross-pill:hover{color:var(--text);border-color:var(--line-strong);background:rgba(47,227,196,.08);transform:translateY(-2px)}
.cross-pill::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--violet-2)}
.cta-panel{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  padding:46px 42px;
  display:grid;grid-template-columns:1.4fr .6fr;gap:30px;align-items:center;
}
.cta-panel::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(520px 260px at 88% 12%,rgba(47,227,196,.20),transparent 68%);
  pointer-events:none;
}
.cta-panel h2{font-size:clamp(22px,2.4vw,30px);position:relative}
.cta-panel p{margin-top:14px;color:var(--text-2);font-size:15px;position:relative}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;justify-content:flex-end}

/* ---------- footer ---------- */
.site-footer{
  border-top:1px solid rgba(150,220,255,.1);
  background:var(--bg-soft);
  padding:64px 0 28px;
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,227,196,.7),rgba(192,75,255,.6),transparent);
}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px}
.foot-brand p{margin-top:16px;color:var(--text-2);font-size:14px;max-width:30em}
.foot-col h4{font-size:14px;letter-spacing:.08em;color:var(--text-3);font-weight:600;margin-bottom:16px}
.foot-col ul{display:grid;gap:11px}
.foot-col a,.foot-col span{font-size:14px;color:var(--text-2)}
.foot-col a:hover{color:var(--mint)}
.foot-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(150,220,255,.1);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.foot-tech{font-variant-numeric:tabular-nums}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .nav-link{padding:9px 10px;font-size:13px}
}
@media (max-width:1023px){
  .nav-menu{
    position:absolute;top:74px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:6px;
    padding:16px;border-radius:22px;
    background:linear-gradient(180deg,rgba(10,15,30,.96),rgba(10,15,30,.9));
    border:1px solid var(--line);
    backdrop-filter:blur(18px) saturate(140%);
    -webkit-backdrop-filter:blur(18px) saturate(140%);
    box-shadow:0 24px 50px rgba(0,0,0,.5);
    display:none;
  }
  .site-header.is-open .nav-menu{display:flex}
  .nav-link{padding:13px 16px;font-size:15px;border-radius:14px}
  .nav-link::after{display:none}
  .nav-toggle{display:inline-flex}
  .nav-shell{height:60px}
  .section{padding:64px 0}
  .focus-wrap,.rhythm-wrap{grid-template-columns:1fr;gap:26px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:26px}
  .cta-panel{grid-template-columns:1fr;padding:34px 28px}
  .cta-actions{justify-content:flex-start}
  .page-hero{padding:118px 0 58px}
}
@media (max-width:639px){
  body{font-size:15px}
  .page-container{padding-left:18px;padding-right:18px}
  .section{padding:48px 0}
  .nav-shell{padding:0 10px 0 14px;gap:10px}
  .brand-text{font-size:15px}
  .nav-shell .btn-primary.btn-sm{display:none}
  .hero-stats{gap:10px}
  .sec-head{flex-direction:column;gap:10px}
  .sec-num{font-size:40px}
  .timeline{padding-left:26px}
  .timeline::before{left:5px}
  .tl-item::before{left:-25px;top:24px}
  .tl-month::before{left:-26px}
  .tl-card{padding:18px 18px}
  .tl-card h3{font-size:17px}
  .rhythm-row{grid-template-columns:1fr;gap:10px}
  .foot-grid{grid-template-columns:1fr}
  .hero-actions{gap:10px}
  .hero-actions .btn{width:100%;height:44px}
  .cta-actions .btn{width:100%;height:44px}
  .faq-q{font-size:15px;padding:12px 16px}
}

/* roulang page: category2 */
:root{
  --brand:#2FE3C4;
  --brand-deep:#12A88F;
  --violet:#7A5CFF;
  --violet-2:#C04BFF;
  --amber:#FFC24B;
  --bg:#05070F;
  --bg-2:#0A0F1E;
  --glass:rgba(255,255,255,.045);
  --glass-line:rgba(150,220,255,.12);
  --text:#EAF2FF;
  --text-2:#A7B6CE;
  --text-3:#6C7C96;
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:10px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --shadow-glow:0 0 0 1px rgba(47,227,196,.25),0 12px 40px rgba(47,227,196,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  --font-num:"Inter","DIN Alternate","SF Mono","Roboto Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(760px 520px at -5% 4%, rgba(47,227,196,.10), transparent 68%),
    radial-gradient(680px 520px at 104% 62%, rgba(150,75,255,.10), transparent 70%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease);}
a:hover{color:var(--brand);}
h1,h2,h3,h4,h5,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;font-size:inherit;border:0;background:none;color:inherit;cursor:pointer;}
input,textarea{font-family:inherit;font-size:inherit;}
::selection{background:rgba(47,227,196,.28);color:#EAF2FF;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

.page-container{max-width:1200px;margin:0 auto;padding:0 24px;}
main{position:relative;z-index:1;}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{position:fixed;top:16px;left:0;right:0;z-index:80;padding:0 18px;}
.nav-shell{
  max-width:1120px;margin:0 auto;height:64px;
  display:flex;align-items:center;gap:18px;
  padding:0 14px 0 20px;border-radius:999px;
  background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid var(--glass-line);
  box-shadow:0 12px 34px rgba(0,0,0,.38);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:22px;height:22px;border-radius:7px;
  background:linear-gradient(135deg,var(--brand),var(--violet));
  box-shadow:0 0 14px rgba(47,227,196,.55);
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.02em;color:var(--text);white-space:nowrap;}
.brand-text b{color:var(--brand);font-weight:700;}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;padding:8px 13px;border-radius:999px;
  font-size:14.5px;line-height:1.4;color:var(--text-2);white-space:nowrap;
  border:1px solid transparent;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--violet-2));
  transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{
  color:var(--brand);border-color:rgba(47,227,196,.42);background:rgba(47,227,196,.09);
}
.nav-link.is-active::after{display:none;}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:50%;
  border:1px solid var(--glass-line);background:rgba(255,255,255,.05);
  position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";position:absolute;left:11px;width:18px;height:2px;border-radius:2px;background:var(--text);
  transition:transform .22s var(--ease),opacity .22s var(--ease);
}
.nav-toggle span{top:19px;}
.nav-toggle span::before{top:-6px;left:0;}
.nav-toggle span::after{top:6px;left:0;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease),border-color .22s var(--ease),filter .22s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,#4CF0D3,#19C3A5 62%,#12A88F);
  color:#04121B;
  box-shadow:0 0 0 1px rgba(47,227,196,.30),0 12px 34px rgba(47,227,196,.22);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);color:#04121B;box-shadow:0 0 0 1px rgba(47,227,196,.45),0 16px 40px rgba(47,227,196,.30);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(47,227,196,.35),0 6px 18px rgba(47,227,196,.20);}
.btn-ghost{
  background:transparent;border-color:rgba(150,220,255,.28);color:var(--text);
}
.btn-ghost:hover{background:rgba(255,255,255,.06);border-color:rgba(47,227,196,.45);color:var(--text);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}

/* ---------- Hero ---------- */
.hero{
  position:relative;padding:158px 0 78px;overflow:hidden;
  background:
    radial-gradient(720px 440px at 4% -6%, rgba(47,227,196,.20), transparent 70%),
    radial-gradient(640px 460px at 102% 106%, rgba(160,75,255,.22), transparent 72%),
    linear-gradient(180deg,#070B16 0%,#05070F 100%);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(ellipse at 26% 12%,#000 0%,transparent 72%);
  mask-image:radial-gradient(ellipse at 26% 12%,#000 0%,transparent 72%);
}
.hero .page-container{position:relative;z-index:2;}
.hero-copy{max-width:640px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 16px;border-radius:999px;font-size:12.5px;font-weight:600;letter-spacing:.08em;
  color:#D9C8FF;border:1px solid rgba(160,120,255,.42);background:rgba(122,92,255,.14);
}
.eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px var(--brand);display:inline-block;}
.hero h1{
  margin:22px 0 0;
  font-size:clamp(30px,4.2vw,52px);
  font-weight:700;line-height:1.18;letter-spacing:-.01em;
}
.hero h1 em{font-style:normal;color:var(--brand);}
.hero-sub{margin-top:16px;font-size:17px;color:var(--text-2);max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-pills{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px;}
.pill-glass{
  padding:10px 18px;border-radius:999px;font-size:13.5px;color:var(--text-2);
  background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid var(--glass-line);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.pill-glass b{font-family:var(--font-num);color:var(--brand);font-size:15px;font-weight:700;margin-right:4px;}
.hero-media{
  position:relative;aspect-ratio:16/10;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid rgba(150,220,255,.16);
  box-shadow:0 22px 60px rgba(0,0,0,.5);
  background:linear-gradient(160deg,#0B1222,#070B16);
}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-media::after{
  content:"";position:absolute;inset:auto 0 0 0;height:64%;
  background:linear-gradient(180deg,transparent,rgba(5,7,15,.88));
}
.hero-media figcaption{
  position:absolute;left:20px;right:20px;bottom:18px;z-index:2;
  font-size:13.5px;color:var(--text-2);
}
.hero-media .media-tag{
  position:absolute;top:16px;left:16px;z-index:2;
  padding:6px 13px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.06em;
  color:#04121B;background:linear-gradient(135deg,var(--amber),#FFD98A);
}

/* ---------- 板块通用 ---------- */
.section{padding:92px 0;position:relative;}
.section-alt{background:var(--bg-2);border-top:1px solid rgba(150,220,255,.07);border-bottom:1px solid rgba(150,220,255,.07);}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:42px;}
.sec-title{display:flex;align-items:center;gap:14px;}
.sec-title::before{
  content:"";width:5px;height:34px;border-radius:4px;
  background:linear-gradient(180deg,var(--violet-2),var(--violet));flex:0 0 auto;
}
.sec-title h2{font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.3;}
.sec-desc{margin-top:12px;color:var(--text-2);font-size:15.5px;max-width:720px;}
.sec-link{font-size:14px;color:var(--brand);border-bottom:1px solid rgba(47,227,196,.4);padding-bottom:2px;}
.sec-link:hover{color:#7DFBE4;border-color:#7DFBE4;}
.outline-num{
  font-family:var(--font-num);font-size:42px;font-weight:800;line-height:1;
  color:transparent;-webkit-text-stroke:1px rgba(47,227,196,.6);
}
.outline-num.violet{-webkit-text-stroke:1px rgba(170,130,255,.6);}

/* ---------- 图鉴卡网格 ---------- */
.build-grid{margin-top:-12px;}
.build-grid > .cell{margin-bottom:24px;}
.build-card{
  display:flex;flex-direction:column;height:100%;overflow:hidden;
  border-radius:var(--radius-lg);
  background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid var(--glass-line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.build-card:hover,.build-card:focus-within{
  transform:translateY(-4px);
  border-color:rgba(47,227,196,.35);
  box-shadow:var(--shadow-glow);
}
.build-thumb{position:relative;aspect-ratio:3/2;overflow:hidden;background:linear-gradient(160deg,#0C1426,#070B16);}
.build-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.build-card:hover .build-thumb img{transform:scale(1.05);}
.build-thumb::after{content:"";position:absolute;inset:auto 0 0 0;height:58%;background:linear-gradient(180deg,transparent,rgba(5,7,15,.86));}
.build-no{
  position:absolute;top:14px;left:16px;z-index:2;
  font-family:var(--font-num);font-size:26px;font-weight:800;color:transparent;
  -webkit-text-stroke:1px rgba(255,255,255,.62);
}
.build-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto;}
.build-body h3{font-size:20px;font-weight:600;line-height:1.4;}
.build-body h3 a{color:var(--text);}
.build-body h3 a:hover{color:var(--brand);}
.build-sum{font-size:14.5px;line-height:1.75;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;}
.tag{
  display:inline-flex;align-items:center;padding:4px 11px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.06em;line-height:1.6;border:1px solid transparent;
}
.tag-violet{color:#D9C8FF;border-color:rgba(160,120,255,.45);background:rgba(122,92,255,.14);}
.tag-brand{color:#9FF3E2;border-color:rgba(47,227,196,.42);background:rgba(47,227,196,.10);}
.tag-amber{color:#FFD98A;border-color:rgba(255,194,75,.45);background:rgba(255,194,75,.12);}

/* ---------- 编号索引列表 ---------- */
.index-list{border-top:1px solid rgba(150,220,255,.12);}
.index-row{
  display:flex;align-items:flex-start;gap:22px;
  padding:26px 12px;border-bottom:1px solid rgba(150,220,255,.12);
  transition:background-color .22s var(--ease);
}
.index-row:hover{background:rgba(255,255,255,.035);}
.index-row .outline-num{flex:0 0 66px;font-size:38px;}
.index-row .rule{
  width:1px;align-self:stretch;flex:0 0 auto;
  background:linear-gradient(180deg,rgba(47,227,196,.65),rgba(47,227,196,0));
}
.index-row h3{font-size:19px;font-weight:600;margin-bottom:6px;}
.index-row p{font-size:14.5px;color:var(--text-2);max-width:760px;}
.index-row .index-meta{font-family:var(--font-num);font-size:13px;color:var(--text-3);margin-left:auto;white-space:nowrap;padding-top:6px;}

/* ---------- 流程步骤 ---------- */
.steps{display:flex;gap:18px;}
.step{
  flex:1 1 0;min-width:0;position:relative;padding:26px 22px 24px;
  border-radius:var(--radius-lg);border:1px solid var(--glass-line);
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.018));
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.step:hover{transform:translateY(-4px);border-color:rgba(47,227,196,.32);}
.step::before{content:"";position:absolute;top:44px;right:-18px;width:18px;height:1px;background:rgba(150,220,255,.22);}
.step:last-child::before{display:none;}
.step-num{
  font-family:var(--font-num);font-size:13px;font-weight:700;letter-spacing:.1em;
  color:var(--brand);display:block;margin-bottom:14px;
}
.step h3{font-size:18px;font-weight:600;margin-bottom:8px;}
.step p{font-size:14px;color:var(--text-2);line-height:1.75;}

/* ---------- 场景横条卡 ---------- */
.scene-list{display:flex;flex-direction:column;gap:16px;}
.scene-card{
  display:flex;align-items:center;gap:20px;padding:18px 22px;
  border-radius:var(--radius-lg);border:1px solid var(--glass-line);
  background:linear-gradient(90deg,rgba(255,255,255,.055),rgba(255,255,255,.015));
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.scene-card:hover{transform:translateX(4px);border-color:rgba(47,227,196,.34);box-shadow:0 10px 30px rgba(0,0,0,.34);}
.scene-thumb{
  flex:0 0 96px;width:96px;aspect-ratio:1/1;border-radius:var(--radius-md);overflow:hidden;
  border:1px solid rgba(150,220,255,.14);background:linear-gradient(160deg,#0C1426,#070B16);
}
.scene-thumb img{width:100%;height:100%;object-fit:cover;}
.scene-body h3{font-size:18px;font-weight:600;margin-bottom:6px;}
.scene-body p{font-size:14.5px;color:var(--text-2);}
.scene-badge{
  margin-left:auto;flex:0 0 auto;padding:5px 13px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.06em;color:#9FF3E2;
  border:1px solid rgba(47,227,196,.35);background:rgba(47,227,196,.09);
}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;}
.faq-item{
  margin-bottom:14px;border-radius:var(--radius-md);overflow:hidden;
  border:1px solid var(--glass-line);
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.018));
  transition:border-color .22s var(--ease);
}
.faq-item[open]{border-color:rgba(47,227,196,.32);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:48px;padding:14px 20px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"";flex:0 0 auto;width:14px;height:14px;position:relative;
  background:
    linear-gradient(var(--brand),var(--brand)) center/100% 2px no-repeat,
    linear-gradient(var(--brand),var(--brand)) center/2px 100% no-repeat;
  transition:transform .25s var(--ease);
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item summary:hover{color:var(--brand);}
.faq-answer{padding:0 20px 18px 20px;font-size:14.5px;line-height:1.8;color:var(--text-2);}
.faq-answer p+p{margin-top:10px;}

/* ---------- CTA ---------- */
.cta-panel{
  position:relative;overflow:hidden;border-radius:24px;padding:52px 44px;text-align:center;
  border:1px solid rgba(150,220,255,.16);
  background:
    radial-gradient(560px 320px at 12% 0%, rgba(47,227,196,.16), transparent 70%),
    radial-gradient(520px 320px at 92% 100%, rgba(160,75,255,.18), transparent 72%),
    linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
.cta-panel h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.3;}
.cta-panel p{margin:14px auto 0;max-width:620px;color:var(--text-2);font-size:15.5px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:28px;}
.share-row{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:26px;}
.share-chip{
  padding:9px 18px;border-radius:999px;font-size:13.5px;color:var(--text-2);
  border:1px dashed rgba(150,220,255,.24);background:rgba(255,255,255,.03);
}
.share-chip:hover{color:var(--brand);border-color:rgba(47,227,196,.45);border-style:solid;}
.cross-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:40px;justify-content:center;}
.cross-links a{
  padding:9px 18px;border-radius:999px;font-size:13.5px;color:var(--text-2);
  border:1px solid var(--glass-line);background:rgba(255,255,255,.035);
}
.cross-links a:hover{color:var(--brand);border-color:rgba(47,227,196,.42);background:rgba(47,227,196,.08);}
.cross-links a.is-current{color:#04121B;background:linear-gradient(135deg,#4CF0D3,#12A88F);border-color:transparent;font-weight:600;}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;margin-top:20px;padding:70px 0 34px;
  background:linear-gradient(180deg,#070B16,#05070F);
  border-top:1px solid rgba(150,220,255,.1);
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,227,196,.6),rgba(160,75,255,.5),transparent);
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;}
.foot-brand p{margin-top:16px;font-size:14px;color:var(--text-2);max-width:320px;line-height:1.8;}
.foot-col h4{font-size:14px;font-weight:700;letter-spacing:.08em;color:var(--text);margin-bottom:16px;}
.foot-col ul{display:flex;flex-direction:column;gap:11px;}
.foot-col a,.foot-col span{font-size:14px;color:var(--text-2);}
.foot-col a:hover{color:var(--brand);}
.foot-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(150,220,255,.09);
  font-size:13px;color:var(--text-3);
}
.foot-tech{font-family:var(--font-num);letter-spacing:.04em;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .build-grid > .cell{flex:0 0 calc(50% - 30px);}
}
@media (max-width:1080px){
  .nav-menu{
    position:absolute;top:74px;left:18px;right:18px;
    flex-direction:column;align-items:stretch;gap:6px;
    padding:16px;border-radius:22px;
    background:linear-gradient(180deg,rgba(12,18,32,.96),rgba(8,12,24,.96));
    border:1px solid var(--glass-line);
    box-shadow:0 24px 60px rgba(0,0,0,.55);
    backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
    display:none;
  }
  .nav-menu.is-open{display:flex;}
  .nav-link{min-height:44px;display:flex;align-items:center;padding:0 16px;font-size:15px;border-radius:14px;}
  .nav-link::after{display:none;}
  .nav-toggle{display:block;}
  .steps{flex-wrap:wrap;}
  .step{flex:1 1 calc(50% - 9px);}
  .step::before{display:none;}
}
@media (max-width:1023px){
  .section{padding:64px 0;}
  .hero{padding:136px 0 64px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .cta-panel{padding:42px 28px;}
}
@media (max-width:767px){
  .page-container{padding:0 18px;}
  .build-grid > .cell{flex:0 0 calc(100% - 30px);}
  .hero-media{margin-top:32px;}
  .index-row{gap:14px;padding:22px 6px;}
  .index-row .outline-num{flex:0 0 46px;font-size:30px;}
  .index-row .index-meta{display:none;}
  .scene-badge{margin-left:0;}
}
@media (max-width:639px){
  body{font-size:15.5px;}
  .section{padding:48px 0;}
  .hero{padding:118px 0 48px;}
  .hero-sub{font-size:15.5px;}
  .hero-actions .btn{width:100%;height:44px;}
  .build-body{padding:18px;}
  .step{flex:1 1 100%;}
  .scene-card{flex-direction:column;align-items:flex-start;gap:14px;}
  .scene-thumb{flex:0 0 auto;width:100%;aspect-ratio:16/9;}
  .cta-actions .btn{width:100%;height:44px;}
  .foot-grid{grid-template-columns:1fr;}
  .foot-bottom{flex-direction:column;}
}

/* roulang page: category4 */
/* ============ 设计变量 ============ */
:root{
  --bg:#05070F;
  --bg-block:#0A0F1E;
  --glass:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  --line:rgba(150,220,255,.12);
  --line-mid:rgba(150,220,255,.2);
  --line-strong:rgba(150,220,255,.28);
  --primary:#2FE3C4;
  --primary-deep:#12A88F;
  --violet:#7A5CFF;
  --violet-2:#C04BFF;
  --amber:#FFC24B;
  --text:#EAF2FF;
  --muted:#A7B6CE;
  --dim:#6C7C96;
  --r-card:18px;
  --r-sm:10px;
  --r-pill:999px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --shadow-lg:0 22px 60px rgba(0,0,0,.5);
  --glow:0 0 0 1px rgba(47,227,196,.25),0 12px 40px rgba(47,227,196,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:Inter,"DIN Alternate","Helvetica Neue",ui-monospace,monospace;
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  padding:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:var(--primary);text-decoration:none;background:transparent;transition:color .2s var(--ease)}
a:hover{color:#7ff3de}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
h1,h2,h3,h4,p{margin:0}
ul,ol{list-style:none;margin:0;padding:0}
button,input,select,textarea{font:inherit;color:inherit}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.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}
.skip-link{position:absolute;left:16px;top:-60px;z-index:200;background:var(--primary);color:#04121B;padding:10px 18px;border-radius:var(--r-pill);font-size:14px;font-weight:600;transition:top .2s var(--ease)}
.skip-link:focus{top:16px;color:#04121B}

/* ============ 容器与板块 ============ */
.grid-container.page-container{
  width:100%;
  max-width:var(--container);
  padding-left:24px;
  padding-right:24px;
  margin-left:auto;
  margin-right:auto;
}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-title{margin-bottom:40px;max-width:820px}
.sec-badge{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.06em;
  color:var(--primary);
  padding:6px 14px;border-radius:var(--r-pill);
  border:1px solid rgba(47,227,196,.3);
  background:rgba(47,227,196,.07);
  margin-bottom:16px;
  text-transform:uppercase;
}
.sec-badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--violet-2);box-shadow:0 0 10px var(--violet-2)}
h1{font-size:clamp(30px,4.2vw,52px);font-weight:700;line-height:1.18;letter-spacing:-.01em}
h2{font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.3}
h3{font-size:20px;font-weight:600;line-height:1.4}
.sec-title{font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.3;position:relative;padding-left:20px}
.sec-title::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--primary),var(--violet-2));
}
.sec-sub{margin-top:14px;color:var(--muted);font-size:16px;line-height:1.8;max-width:720px}
.text-muted{color:var(--muted)}
.divider{height:1px;background:linear-gradient(90deg,transparent,rgba(150,220,255,.18),transparent);border:0;margin:0}

/* ============ 悬浮胶囊导航 ============ */
.site-header{
  position:fixed;top:16px;left:0;right:0;z-index:80;
  padding:0 16px;pointer-events:none;
}
.nav-shell{
  pointer-events:auto;
  max-width:1120px;margin:0 auto;height:64px;
  display:flex;align-items:center;gap:20px;
  padding:0 16px 0 22px;
  border-radius:var(--r-pill);
  background:linear-gradient(180deg,rgba(12,18,34,.88),rgba(8,12,24,.82));
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:0 12px 36px rgba(0,0,0,.45);
}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);flex:0 0 auto}
.brand:hover{color:var(--text)}
.brand-mark{
  width:22px;height:22px;border-radius:7px;
  background:linear-gradient(135deg,var(--primary),var(--violet));
  box-shadow:0 0 0 1px rgba(47,227,196,.4),0 0 18px rgba(47,227,196,.45);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;inset:6px;border-radius:3px;background:#05070F;
}
.brand-text{font-size:16px;font-weight:600;letter-spacing:.01em;white-space:nowrap}
.brand-text b{color:var(--primary);font-weight:700}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 13px;
  border-radius:var(--r-pill);color:var(--muted);font-size:14.5px;font-weight:500;
  white-space:nowrap;transition:color .22s var(--ease),background .22s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:5px;height:2px;width:0;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--violet-2));
  transform:translateX(-50%);transition:width .25s var(--ease);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link:hover::after{width:20px}
.nav-link.is-active{
  color:var(--primary);
  background:rgba(47,227,196,.09);
  box-shadow:inset 0 0 0 1px rgba(47,227,196,.35);
}
.nav-link.is-active::after{width:0}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:14px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  align-items:center;justify-content:center;cursor:pointer;padding:0;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);position:relative;transition:.24s var(--ease)}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--text);transition:.24s var(--ease);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border:0;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:transform .22s var(--ease),filter .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#04121B;box-shadow:var(--glow);
}
.btn-primary:hover{color:#04121B;filter:brightness(1.06);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(47,227,196,.25),0 6px 18px rgba(47,227,196,.16)}
.btn-ghost{
  background:transparent;color:var(--text);
  box-shadow:inset 0 0 0 1px var(--line-strong);
}
.btn-ghost:hover{background:rgba(255,255,255,.06);color:var(--text)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}

/* ============ Hero ============ */
.cat-hero{
  position:relative;
  padding:148px 0 84px;
  overflow:hidden;
  background-image:
    radial-gradient(circle at 12% 6%,rgba(47,227,196,.22),transparent 46%),
    radial-gradient(circle at 88% 94%,rgba(122,92,255,.26),transparent 50%),
    linear-gradient(180deg,rgba(5,7,15,.74),rgba(5,7,15,.95)),
    url('/assets/images/backpic/back-2.webp');
  background-size:auto,auto,auto,cover;
  background-position:center,center,center,center;
  background-repeat:no-repeat;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(150,220,255,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(150,220,255,.06) 1px,transparent 1px);
  background-size:56px 56px,56px 56px;
  opacity:.9;
}
.cat-hero .grid-container{position:relative;z-index:2}
.crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--dim);margin-bottom:22px;flex-wrap:wrap}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--primary)}
.crumb span.sep{color:rgba(150,220,255,.3)}
.hero-h1{margin-bottom:18px;max-width:760px}
.hero-h1 em{font-style:normal;color:var(--primary)}
.hero-lead{font-size:16.5px;color:var(--muted);max-width:640px;margin-bottom:14px;line-height:1.85}
.hero-sub{font-size:22px;font-weight:600;color:var(--text);margin-bottom:18px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:26px 0 30px}
.hero-pills{display:flex;flex-wrap:wrap;gap:10px}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  font-size:13px;color:var(--muted);
}
.pill strong{color:var(--text);font-weight:600;font-family:var(--font-num)}
.pill i{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary);font-style:normal}
.hero-side{display:flex;justify-content:flex-end}
.hero-card{
  width:100%;max-width:460px;border-radius:var(--r-card);overflow:hidden;
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-lg);
}
.hero-card-media{position:relative;aspect-ratio:16/10;background:linear-gradient(135deg,#0d1424,#101a30)}
.hero-card-media img{width:100%;height:100%;object-fit:cover}
.hero-card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(5,7,15,.88))}
.hero-card-body{padding:20px 22px 24px}
.hero-card-label{font-size:12px;font-weight:600;letter-spacing:.06em;color:var(--violet-2);margin-bottom:12px}
.hot-list li+li{border-top:1px solid rgba(150,220,255,.1)}
.hot-list a{
  display:flex;align-items:center;gap:12px;padding:12px 0;min-height:44px;
  color:var(--text);font-size:14.5px;
}
.hot-list a:hover{color:var(--primary)}
.hot-list .num{color:var(--primary);font-weight:700;font-size:13px;opacity:.85}

/* ============ 两栏 FAQ 布局 ============ */
.faq-layout{align-items:flex-start}
.side-index{
  position:sticky;top:104px;
  border-radius:var(--r-card);padding:22px;
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow);
}
.side-index h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:10px}
.side-index h3::before{content:"";width:4px;height:16px;border-radius:4px;background:linear-gradient(180deg,var(--primary),var(--violet-2))}
.side-nav a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  min-height:44px;padding:10px 12px;border-radius:var(--r-sm);
  color:var(--muted);font-size:14px;transition:background .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease);
}
.side-nav a:hover{background:rgba(255,255,255,.05);color:var(--primary);box-shadow:inset 0 0 0 1px rgba(47,227,196,.18)}
.side-nav .count{font-family:var(--font-num);font-size:12px;color:var(--dim)}
.side-tip{
  margin-top:18px;padding:16px;border-radius:14px;
  background:rgba(122,92,255,.09);border:1px solid rgba(122,92,255,.26);
}
.side-tip p{font-size:13px;color:var(--muted);line-height:1.75;margin-bottom:12px}

/* ============ FAQ 手风琴 ============ */
.faq-group{margin-bottom:52px}
.faq-group:last-child{margin-bottom:0}
.faq-group-head{display:flex;align-items:center;gap:16px;margin-bottom:20px}
.faq-group-num{
  font-family:var(--font-num);font-size:44px;font-weight:800;line-height:1;
  color:transparent;-webkit-text-stroke:1px rgba(47,227,196,.55);
}
.faq-group-head h2{font-size:clamp(20px,2.2vw,26px)}
.faq-group-head p{font-size:13.5px;color:var(--dim);margin-top:4px}
.faq-item{
  border-radius:14px;margin-bottom:12px;overflow:hidden;
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease),transform .24s var(--ease);
}
.faq-item:hover{border-color:var(--line-strong)}
.faq-item[open]{
  border-color:rgba(47,227,196,.3);
  box-shadow:0 12px 40px rgba(47,227,196,.1);
}
.faq-item summary{
  position:relative;cursor:pointer;list-style:none;
  min-height:48px;display:flex;align-items:center;
  padding:16px 54px 16px 20px;
  font-size:16px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;right:22px;top:50%;width:14px;height:14px;margin-top:-7px;
  background:
    linear-gradient(var(--primary),var(--primary)) center/14px 2px no-repeat,
    linear-gradient(var(--primary),var(--primary)) center/2px 14px no-repeat;
  transition:transform .26s var(--ease),opacity .26s var(--ease);
}
.faq-item summary::after{
  content:"";position:absolute;right:23px;top:50%;width:9px;height:9px;margin-top:-4px;
  border-left:2px solid var(--primary);border-top:2px solid var(--primary);
  transform:rotate(45deg) scale(.5);opacity:0;
  transition:transform .26s var(--ease),opacity .26s var(--ease);
}
.faq-item[open] summary::before{opacity:0;transform:rotate(90deg) scale(.5)}
.faq-item[open] summary::after{opacity:1;transform:rotate(45deg) scale(1)}
.faq-body{padding:0 22px 20px 20px;font-size:14px;line-height:1.8;color:var(--muted)}
.faq-body p+p{margin-top:10px}
.faq-body strong{color:var(--text);font-weight:600}
.faq-body a{border-bottom:1px solid rgba(47,227,196,.35)}
.faq-body a:hover{border-bottom-color:var(--primary);color:#7ff3de}

/* ============ 三步自查 ============ */
.step-card{
  height:100%;padding:26px 24px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.step-card:hover{transform:translateY(-4px);border-color:rgba(47,227,196,.35);box-shadow:var(--glow)}
.step-num{
  font-family:var(--font-num);font-size:52px;font-weight:800;line-height:1;
  color:transparent;-webkit-text-stroke:1px rgba(122,92,255,.65);
  display:block;margin-bottom:16px;
}
.step-card h3{margin-bottom:10px}
.step-card p{font-size:14px;color:var(--muted);line-height:1.8}
.note-bar{
  margin-top:28px;display:flex;align-items:center;gap:20px;flex-wrap:wrap;
  padding:20px 24px;border-radius:var(--r-card);
  background:linear-gradient(90deg,rgba(47,227,196,.1),rgba(122,92,255,.08));
  border:1px solid var(--line);
}
.note-bar img{width:88px;height:88px;border-radius:14px;object-fit:cover;flex:0 0 88px}
.note-bar p{font-size:14.5px;color:var(--muted);line-height:1.8;flex:1 1 260px}
.note-bar strong{color:var(--text)}

/* ============ 交叉推荐 ============ */
.cross-link{
  display:flex;flex-direction:column;gap:6px;height:100%;
  padding:20px 22px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--line);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease);
}
.cross-link:hover{
  transform:translateY(-3px);border-color:rgba(47,227,196,.4);
  box-shadow:var(--glow);background:rgba(47,227,196,.07);
}
.cross-title{font-size:15.5px;font-weight:600;color:var(--text);display:flex;align-items:center;gap:8px}
.cross-title::after{content:"";width:7px;height:7px;border-right:2px solid var(--primary);border-top:2px solid var(--primary);transform:rotate(45deg);margin-left:auto}
.cross-desc{font-size:13px;color:var(--dim);line-height:1.7}

/* ============ 表单 ============ */
.form-panel{
  padding:32px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow);
}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;height:48px;padding:0 16px;
  border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);color:var(--text);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.field textarea{height:140px;padding:14px 16px;line-height:1.7;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--dim)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(47,227,196,.18);
  background:rgba(255,255,255,.06);
}
.field select option{background:#0A0F1E;color:var(--text)}
.form-tip{margin-top:14px;font-size:13px;color:var(--dim)}
.form-tip.is-on{color:var(--primary)}
.form-side-media{
  border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);
  aspect-ratio:4/3;background:linear-gradient(135deg,#0d1424,#101a30);margin-bottom:22px;
}
.form-side-media img{width:100%;height:100%;object-fit:cover}
.form-side-list li{
  display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--muted);line-height:1.8;padding:8px 0;
}
.form-side-list li::before{
  content:"";width:6px;height:6px;margin-top:11px;border-radius:50%;flex:0 0 6px;
  background:var(--primary);box-shadow:0 0 8px rgba(47,227,196,.8);
}

/* ============ CTA 面板 ============ */
.cta-panel{
  position:relative;overflow:hidden;text-align:center;
  padding:56px 32px;border-radius:24px;
  background:
    radial-gradient(circle at 15% 20%,rgba(47,227,196,.16),transparent 52%),
    radial-gradient(circle at 85% 80%,rgba(192,75,255,.18),transparent 52%),
    linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid var(--line-mid);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-lg);
}
.cta-panel h2{margin-bottom:14px}
.cta-panel p{color:var(--muted);max-width:560px;margin:0 auto 26px;font-size:15.5px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.share-row{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:26px}
.share-btn{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 20px;
  border-radius:var(--r-pill);font-size:13.5px;color:var(--muted);
  background:rgba(255,255,255,.04);border:1px solid var(--line);cursor:pointer;
  transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.share-btn:hover{color:var(--primary);background:rgba(47,227,196,.08);border-color:rgba(47,227,196,.35);transform:translateY(-1px)}
.share-btn svg{width:15px;height:15px;fill:currentColor}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;margin-top:20px;
  background:linear-gradient(180deg,rgba(10,15,30,.72),rgba(5,7,15,.98));
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,227,196,.6),rgba(122,92,255,.5),transparent);
}
.foot-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;
  padding:56px 0 36px;
}
.foot-brand .brand{margin-bottom:16px}
.foot-brand p{font-size:13.5px;color:var(--dim);line-height:1.85;max-width:320px}
.foot-col h4{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px;letter-spacing:.02em}
.foot-col ul li{margin-bottom:10px}
.foot-col a,.foot-col span{font-size:13.5px;color:var(--muted);line-height:1.7}
.foot-col a:hover{color:var(--primary)}
.foot-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  padding:20px 0 32px;border-top:1px solid rgba(150,220,255,.1);
  font-size:13px;color:var(--dim);
}
.foot-tech{font-family:var(--font-num);color:var(--dim)}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .brand-text{font-size:15px}
  .nav-link{padding:0 11px;font-size:14px}
}
@media (max-width:1023px){
  .section{padding:64px 0}
  .section-tight{padding:52px 0}
  .cat-hero{padding:126px 0 64px}
  .nav-toggle{display:inline-flex}
  .nav-shell{height:58px;padding:0 12px 0 18px;gap:12px}
  .nav-menu{
    position:fixed;top:88px;left:16px;right:16px;
    flex-direction:column;align-items:stretch;gap:4px;margin-left:0;
    padding:14px;border-radius:24px;
    background:linear-gradient(180deg,rgba(12,18,34,.97),rgba(8,12,24,.97));
    border:1px solid var(--line);
    backdrop-filter:blur(18px) saturate(140%);
    -webkit-backdrop-filter:blur(18px) saturate(140%);
    box-shadow:0 28px 70px rgba(0,0,0,.6);
    max-height:calc(100vh - 120px);overflow-y:auto;
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s linear;
  }
  .nav-menu.is-open{opacity:1;visibility:visible;transform:none}
  .nav-link{height:48px;border-radius:14px;padding:0 16px;font-size:15px}
  .nav-link::after{display:none}
  .nav-actions{margin-left:auto}
  .hero-side{justify-content:flex-start;margin-top:36px}
  .hero-card{max-width:100%}
  .side-index{position:static;margin-bottom:28px;padding:18px}
  .side-nav{display:flex;gap:8px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:4px;-webkit-overflow-scrolling:touch}
  .side-nav::-webkit-scrollbar{display:none}
  .side-nav li{flex:0 0 auto;scroll-snap-align:start}
  .side-nav a{
    border:1px solid var(--line);border-radius:var(--r-pill);
    padding:10px 16px;white-space:nowrap;background:rgba(255,255,255,.03);
  }
  .side-nav .count{display:none}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px;padding:44px 0 28px}
  .foot-brand{grid-column:1 / -1}
  .foot-brand p{max-width:100%}
}
@media (max-width:639px){
  body{font-size:15px}
  .grid-container.page-container{padding-left:18px;padding-right:18px}
  .section{padding:48px 0}
  .section-tight{padding:44px 0}
  .cat-hero{padding:112px 0 52px}
  .hero-actions .btn{width:100%}
  .cta-actions .btn{width:100%}
  .hero-sub{font-size:19px}
  .faq-item summary{padding:14px 48px 14px 16px;font-size:15px}
  .faq-body{padding:0 16px 18px 16px}
  .faq-group-num{font-size:34px}
  .form-panel{padding:22px}
  .cta-panel{padding:40px 20px}
  .note-bar{padding:18px}
  .note-bar img{width:64px;height:64px;flex:0 0 64px}
  .foot-grid{grid-template-columns:1fr;gap:24px}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}