/* roulang page: index */
:root{
  --bg:#080D12;
  --surface:#0E1720;
  --card:#131F2A;
  --card-2:#16242F;
  --primary:#35E0B4;
  --primary-soft:#7BF0D2;
  --primary-deep:#1FB894;
  --accent:#FF8A3D;
  --muted:#6F8BA8;
  --text:#E8F1F5;
  --body:#C3D2DB;
  --dim:#8A9BA8;
  --line:rgba(255,255,255,.08);
  --line-hover:rgba(53,224,180,.45);
  --radius-lg:18px;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 8px 24px rgba(0,0,0,.35),inset 0 1px 0 rgba(255,255,255,.05);
  --shadow-hover:0 14px 36px rgba(0,0,0,.45),inset 0 1px 0 rgba(255,255,255,.07);
  --glow:0 0 0 1px rgba(53,224,180,.5),0 6px 22px rgba(53,224,180,.25);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:"PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  background:var(--bg);
  color:var(--body);
  font-size:15px;
  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 .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease)}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
::selection{background:rgba(53,224,180,.28);color:#fff}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 clamp(16px,4vw,40px)}

/* ---------- 倒计时条 ---------- */
.timer-bar{
  position:sticky;top:0;z-index:70;
  min-height:40px;
  background:rgba(19,31,42,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.12);
}
.timer-inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:40px;padding:4px 0;
}
.timer-left{display:flex;align-items:center;gap:14px;min-width:0}
.timer-label{font-size:12px;color:var(--dim);letter-spacing:.02em;white-space:nowrap}
.timer-digits{display:flex;align-items:center;gap:6px;font-family:var(--mono)}
.timer-unit{
  min-width:38px;text-align:center;padding:3px 6px;border-radius:8px;
  background:rgba(255,255,255,.06);border:1px solid var(--line);
  font-size:15px;font-weight:600;color:var(--accent);line-height:1.3;
}
.timer-unit small{display:block;font-size:9px;font-weight:500;color:var(--dim);letter-spacing:.08em}
.timer-colon{color:var(--muted);font-size:13px}
.timer-btn{
  font-size:12px;padding:6px 14px;border-radius:8px;
  border:1px solid rgba(53,224,180,.35);color:var(--primary);
  background:rgba(53,224,180,.08);white-space:nowrap;
}
.timer-btn:hover{background:rgba(53,224,180,.16);border-color:var(--line-hover)}

/* ---------- 页头 ---------- */
.site-header{
  position:sticky;top:40px;z-index:60;
  background:rgba(8,13,18,.82);
  backdrop-filter:blur(0px);
  -webkit-backdrop-filter:blur(0px);
  border-bottom:1px solid var(--line);
  transition:background .25s var(--ease),box-shadow .25s var(--ease),backdrop-filter .25s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(9,15,21,.9);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  box-shadow:0 8px 24px rgba(0,0,0,.28);
}
.header-inner{display:flex;align-items:center;gap:20px;height:64px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{width:34px;height:34px;flex:0 0 auto}
.logo-text{display:flex;flex-direction:column;line-height:1.18}
.logo-text strong{font-size:15px;font-weight:700;color:var(--text);letter-spacing:.01em}
.logo-text em{font-style:normal;font-size:11px;font-weight:500;color:var(--primary);letter-spacing:.16em}
.nav-desktop{display:flex;align-items:center;gap:20px;flex:1 1 auto;min-width:0}
.nav-desktop a{
  position:relative;font-size:13.5px;color:var(--body);white-space:nowrap;
  padding:6px 0;transition:color .18s var(--ease);
}
.nav-desktop a::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform .2s var(--ease);border-radius:2px;
}
.nav-desktop a:hover{color:var(--text)}
.nav-desktop a:hover::after{transform:scaleX(1)}
.nav-desktop a.is-active{color:var(--primary-soft)}
.nav-desktop a.is-active::after{transform:scaleX(1)}
.header-right{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.search{
  display:flex;align-items:center;gap:8px;
  width:200px;height:38px;padding:0 10px;
  border:1px solid var(--line);border-radius:var(--radius-sm);
  background:rgba(255,255,255,.03);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.search:focus-within{border-color:var(--primary);box-shadow:0 0 0 2px rgba(53,224,180,.18);background:rgba(53,224,180,.05)}
.search svg{flex:0 0 auto;color:var(--muted)}
.search input{
  flex:1 1 auto;min-width:0;background:none;border:0;outline:none;
  color:var(--text);font-size:13px;
}
.search input::placeholder{color:var(--muted)}
.search kbd{
  font-family:var(--mono);font-size:10px;color:var(--dim);
  border:1px solid var(--line);border-radius:5px;padding:1px 5px;line-height:1.6;
  background:rgba(255,255,255,.04);
}
.quick-link{font-size:13px;color:var(--dim);white-space:nowrap}
.quick-link:hover{color:var(--primary)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--radius-sm);
  font-size:14px;font-weight:600;letter-spacing:.01em;
  transition:transform .18s var(--ease),filter .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-deep) 100%);
  color:#04211A;box-shadow:var(--glow);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(53,224,180,.6),0 10px 28px rgba(53,224,180,.32)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:transparent;color:var(--text);
  border:1px solid rgba(255,255,255,.18);
}
.btn-ghost:hover{border-color:var(--line-hover);color:var(--primary-soft);transform:translateY(-1px)}
.header-cta{height:38px;padding:0 18px;font-size:13px}
.menu-toggle{
  display:none;width:38px;height:38px;border-radius:9px;
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  align-items:center;justify-content:center;color:var(--text);
}
.menu-toggle:hover{border-color:var(--line-hover);color:var(--primary)}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);
  background:rgba(10,16,22,.98);padding:16px 0 24px;
}
.mobile-drawer.is-open{display:block}
.mobile-drawer a{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 2px;border-bottom:1px solid var(--line);
  font-size:15px;color:var(--body);
}
.mobile-drawer a:last-of-type{border-bottom:0}
.mobile-drawer a.is-active{color:var(--primary-soft)}
.mobile-drawer .btn{width:100%;margin-top:16px}
.mobile-search{
  display:flex;align-items:center;gap:8px;height:42px;padding:0 12px;
  border:1px solid var(--line);border-radius:var(--radius-sm);margin-bottom:10px;
  background:rgba(255,255,255,.03);
}
.mobile-search input{flex:1;background:none;border:0;outline:none;color:var(--text);font-size:14px}
.mobile-search input::placeholder{color:var(--muted)}

/* ---------- 通用板块 ---------- */
.section{padding:clamp(56px,7vw,96px) 0}
.section-tight{padding-top:0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mono);font-size:12px;letter-spacing:.18em;
  color:var(--primary);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--primary);opacity:.7}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.section-head h2{font-size:clamp(22px,2.2vw,30px);line-height:1.35}
.section-head p{margin-top:10px;font-size:14.5px;color:var(--dim);max-width:640px}
.link-more{font-size:13.5px;color:var(--primary);white-space:nowrap;display:inline-flex;align-items:center;gap:6px}
.link-more:hover{color:var(--primary-soft);gap:10px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;line-height:1.7;padding:2px 9px;border-radius:6px;
  color:var(--primary);background:rgba(53,224,180,.12);
  border:1px solid rgba(53,224,180,.2);
}
.badge-muted{color:var(--dim);background:rgba(255,255,255,.05);border-color:var(--line)}
.mono{font-family:var(--mono)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:clamp(48px,6vw,84px) 0 clamp(48px,6vw,80px);background:radial-gradient(120% 90% at 20% 0%,rgba(53,224,180,.10),transparent 60%),radial-gradient(80% 70% at 90% 20%,rgba(255,138,61,.06),transparent 65%),var(--bg)}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.22;filter:saturate(.9);
}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,13,18,.55) 0%,rgba(8,13,18,.92) 78%,var(--bg) 100%)}
.hero .container{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) 420px;gap:clamp(28px,4vw,56px);align-items:center}
.hero-copy h1{
  font-size:clamp(28px,3.4vw,44px);line-height:1.28;margin:16px 0 0;letter-spacing:-.015em;
}
.hero-copy h1 span{color:var(--primary-soft)}
.hero-lead{margin-top:18px;font-size:16px;line-height:1.9;color:var(--body);max-width:600px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.trust-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.trust-item{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12.5px;color:var(--dim);
  padding:5px 12px;border:1px solid var(--line);border-radius:8px;
  background:rgba(255,255,255,.025);
}
.trust-item i{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px rgba(53,224,180,.8)}
.glass-card{
  position:relative;
  background:rgba(255,255,255,.06);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius-lg);
  box-shadow:0 18px 48px rgba(0,0,0,.45),inset 0 1px 0 rgba(255,255,255,.14);
  overflow:hidden;
}
.glass-card::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:rgba(255,255,255,.2)}
.glass-head{padding:20px 22px 14px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.glass-head h2{font-size:15px;font-weight:600;letter-spacing:.01em}
.live-dot{display:inline-flex;align-items:center;gap:6px;font-size:11.5px;color:var(--primary)}
.live-dot i{width:6px;height:6px;border-radius:50%;background:var(--primary);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1;box-shadow:0 0 0 0 rgba(53,224,180,.5)}50%{opacity:.7;box-shadow:0 0 0 5px rgba(53,224,180,0)}}
.glass-count{display:flex;gap:8px;padding:0 22px 18px}
.glass-count div{
  flex:1;text-align:center;padding:8px 4px;border-radius:10px;
  background:rgba(0,0,0,.28);border:1px solid rgba(255,255,255,.08);
  font-family:var(--mono);font-size:18px;font-weight:600;color:var(--accent);line-height:1.2;
}
.glass-count div small{display:block;font-family:var(--font);font-size:10px;font-weight:400;color:var(--dim);letter-spacing:.1em;margin-top:2px}
.glass-list{padding:0 22px 6px}
.glass-list li{display:flex;gap:10px;padding:10px 0;border-top:1px solid rgba(255,255,255,.07);font-size:13.5px;color:var(--body);line-height:1.7}
.glass-list li b{color:var(--text);font-weight:600}
.glass-list li span{color:var(--primary);flex:0 0 auto;font-family:var(--mono);font-size:12px;padding-top:2px}
.glass-thumb{margin:14px 22px 22px;border-radius:12px;overflow:hidden;position:relative;aspect-ratio:16/7;border:1px solid rgba(255,255,255,.1)}
.glass-thumb img{width:100%;height:100%;object-fit:cover;opacity:.85}
.glass-thumb figcaption{
  position:absolute;left:12px;bottom:10px;font-size:11.5px;color:#fff;
  background:rgba(0,0,0,.5);border:1px solid rgba(255,255,255,.16);
  padding:3px 9px;border-radius:6px;backdrop-filter:blur(6px);
}

/* ---------- 卖点编号列 ---------- */
.points-wrap{display:grid;grid-template-columns:260px minmax(0,1fr);gap:clamp(24px,4vw,56px);align-items:start}
.points-aside h2{font-size:clamp(22px,2.2vw,30px);line-height:1.35;margin-top:14px}
.points-aside p{margin-top:14px;font-size:14px;color:var(--dim);max-width:230px}
.points-list{border-top:1px solid var(--line)}
.point-item{
  display:grid;grid-template-columns:64px minmax(0,1fr);gap:18px;
  padding:24px 0;border-bottom:1px solid var(--line);
  transition:border-color .2s var(--ease);
}
.point-num{font-family:var(--mono);font-size:22px;font-weight:600;color:var(--muted);line-height:1.2;position:relative;transition:color .2s var(--ease)}
.point-num::after{
  content:"";position:absolute;left:0;bottom:2px;width:0;height:1px;background:var(--accent);
  transition:width .28s var(--ease);
}
.point-item:hover{border-color:var(--line-hover)}
.point-item:hover .point-num{color:var(--accent)}
.point-item:hover .point-num::after{width:40px}
.point-body h3{font-size:16px;font-weight:600;color:var(--text);line-height:1.6}
.point-body p{margin-top:6px;font-size:14px;color:var(--dim);line-height:1.8;max-width:640px}

/* ---------- 图墙 ---------- */
.wall{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.wall-item{
  position:relative;overflow:hidden;border-radius:var(--radius);
  border:1px solid var(--line);background:var(--card);
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.wall-item img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease);opacity:.9}
.wall-item::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,13,18,0) 35%,rgba(8,13,18,.92) 100%)}
.wall-item figcaption{
  position:absolute;left:16px;right:16px;bottom:14px;z-index:2;
  font-size:13.5px;font-weight:600;color:var(--text);letter-spacing:.01em;
}
.wall-item figcaption span{display:block;font-size:11.5px;font-weight:400;color:var(--dim);margin-top:2px}
.wall-item:hover{transform:translateY(-2px);border-color:var(--line-hover);box-shadow:var(--shadow-hover)}
.wall-item:hover img{transform:scale(1.04)}
.wall-a,.wall-b{height:224px}
.wall-c,.wall-d,.wall-e,.wall-f{height:176px}
.wall-a{grid-column:span 2}
.wall-c{grid-column:span 2}

/* ---------- 数据与反馈 ---------- */
.metrics-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:clamp(24px,4vw,56px);align-items:start}
.metrics-left h2{font-size:clamp(22px,2.2vw,30px);line-height:1.35;margin-top:14px}
.metrics-left > p{margin-top:16px;font-size:14.5px;color:var(--dim);max-width:620px}
.metric-row{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:30px}
.metric{
  padding:18px 16px;border-radius:14px;border:1px solid var(--line);
  background:linear-gradient(180deg,var(--card) 0%,var(--surface) 100%);
  box-shadow:var(--shadow);
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.metric:hover{transform:translateY(-2px);border-color:var(--line-hover);box-shadow:var(--shadow-hover)}
.metric b{display:block;font-family:var(--mono);font-size:26px;font-weight:600;color:var(--primary);line-height:1.2}
.metric span{display:block;margin-top:6px;font-size:12.5px;color:var(--dim);line-height:1.6}
.metrics-right{display:grid;gap:16px}
.rating-card{padding:22px;border-radius:var(--radius);border:1px solid var(--line);background:var(--card);box-shadow:var(--shadow)}
.rating-card h3{font-size:15px;font-weight:600}
.rating-card .rating-total{display:flex;align-items:baseline;gap:8px;margin:10px 0 4px}
.rating-total strong{font-family:var(--mono);font-size:32px;color:var(--accent);line-height:1}
.rating-total span{font-size:12.5px;color:var(--dim)}
.rating-row{display:grid;grid-template-columns:78px minmax(0,1fr) 38px;align-items:center;gap:10px;margin-top:12px;font-size:12.5px;color:var(--dim)}
.bar{height:5px;border-radius:4px;background:rgba(255,255,255,.07);overflow:hidden}
.bar i{display:block;height:100%;border-radius:4px;background:linear-gradient(90deg,var(--primary-deep),var(--primary))}
.rating-row b{font-family:var(--mono);font-size:12px;color:var(--body);text-align:right;font-weight:500}
.quote{
  margin:0;padding:20px 22px;border-radius:var(--radius);
  border:1px solid var(--line);border-left:3px solid var(--accent);
  background:rgba(255,255,255,.03);font-size:13.5px;line-height:1.9;color:var(--body);
}
.quote footer{margin-top:10px;font-size:12px;color:var(--dim)}

/* ---------- CMS 列表 ---------- */
.cms-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);grid-auto-rows:min-content;gap:20px}
.cms-card{
  border-radius:var(--radius);border:1px solid var(--line);background:var(--card);
  box-shadow:var(--shadow);overflow:hidden;
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.cms-card:hover{transform:translateY(-2px);border-color:var(--line-hover);box-shadow:var(--shadow-hover)}
.cms-feature{grid-row:span 3;display:flex;flex-direction:column}
.cms-cover{display:block;position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--surface)}
.cms-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.cms-card:hover .cms-cover img{transform:scale(1.04)}
.cms-feature .cms-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.cms-feature h3{font-size:19px;line-height:1.5;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cms-feature h3 a:hover{color:var(--primary-soft)}
.cms-summary{font-size:13.5px;color:var(--dim);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cms-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:auto;padding-top:6px}
.cms-time{font-family:var(--mono);font-size:12px;color:var(--muted);margin-left:auto}
.cms-row{display:flex;gap:14px;padding:14px;align-items:flex-start}
.cms-thumb{flex:0 0 96px;width:96px;height:76px;border-radius:10px;overflow:hidden;border:1px solid var(--line);background:var(--surface)}
.cms-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.cms-card:hover .cms-thumb img{transform:scale(1.05)}
.cms-row .cms-body{min-width:0;display:flex;flex-direction:column;gap:6px;flex:1}
.cms-row h3{font-size:14.5px;line-height:1.55;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cms-row h3 a:hover{color:var(--primary-soft)}
.cms-more{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:20px}
.cms-mini{
  border-radius:14px;border:1px solid var(--line);background:var(--surface);
  padding:16px 18px;display:flex;flex-direction:column;gap:8px;
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.cms-mini:hover{transform:translateY(-2px);border-color:var(--line-hover);box-shadow:var(--shadow-hover)}
.cms-mini h3{font-size:14.5px;line-height:1.55;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cms-mini h3 a:hover{color:var(--primary-soft)}
.cms-empty{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  padding:54px 20px;border:1px dashed var(--line);border-radius:var(--radius);
  background:rgba(255,255,255,.02);color:var(--dim);font-size:14px;text-align:center;
}
.cms-empty svg{color:var(--muted);opacity:.7}

/* ---------- CTA 条带 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:20px;border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.06);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:0 18px 48px rgba(0,0,0,.4),inset 0 1px 0 rgba(255,255,255,.14);
  padding:clamp(24px,3vw,38px);
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(53,224,180,.22),transparent 65%);pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:28px;align-items:center}
.cta-inner h2{font-size:clamp(20px,2vw,26px);line-height:1.4}
.cta-inner p{margin-top:10px;font-size:13.5px;color:var(--body);max-width:420px}
.cta-form{display:flex;gap:10px;align-items:flex-start;flex-wrap:wrap;justify-content:flex-end}
.field{flex:1 1 200px;min-width:0}
.field input{
  width:100%;height:44px;padding:0 14px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:rgba(0,0,0,.3);color:var(--text);font-size:14px;
  outline:none;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field input::placeholder{color:var(--muted)}
.field input:focus{border-color:var(--primary);box-shadow:0 0 0 2px rgba(53,224,180,.2)}
.form-note{width:100%;text-align:right;font-size:11px;color:var(--dim);line-height:1.7;margin-top:2px}
.form-feedback{width:100%;text-align:right;font-size:12.5px;color:var(--primary);display:none}
.form-feedback.is-show{display:block}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:300px minmax(0,1fr);gap:clamp(24px,4vw,56px);align-items:start}
.faq-aside h2{font-size:clamp(22px,2.2vw,30px);line-height:1.35;margin-top:14px}
.faq-aside p{margin-top:14px;font-size:14px;color:var(--dim)}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:58px;padding:14px 2px;text-align:left;
  font-size:15px;font-weight:600;color:var(--text);line-height:1.6;
  transition:color .18s var(--ease);
}
.faq-q:hover{color:var(--primary-soft)}
.faq-icon{position:relative;flex:0 0 16px;width:16px;height:16px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:0;top:50%;width:16px;height:2px;border-radius:2px;
  background:var(--primary);transform:translateY(-50%);transition:transform .25s var(--ease),opacity .25s var(--ease);
}
.faq-icon::after{transform:translateY(-50%) rotate(90deg)}
.faq-item.is-open .faq-icon::after{transform:translateY(-50%) rotate(0);opacity:0}
.faq-panel{max-height:0;overflow:hidden;transition:max-height .25s var(--ease)}
.faq-panel p{font-size:14px;line-height:1.9;color:var(--dim);padding:0 40px 18px 2px}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--line);background:linear-gradient(180deg,var(--bg) 0%,#0A1118 100%);padding:clamp(40px,5vw,64px) 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:48px}
.footer-brand .logo{margin-bottom:14px}
.footer-brand p{font-size:13px;color:var(--dim);line-height:1.9;max-width:280px}
.footer-col h3{font-size:13px;font-weight:600;color:var(--text);letter-spacing:.06em;margin-bottom:14px}
.footer-col li{margin-bottom:10px}
.footer-col a,.footer-col span{font-size:13px;color:var(--dim);line-height:1.7}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:44px;padding:18px 0;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:var(--muted);
}
.footer-bottom span{line-height:1.7}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .nav-desktop{gap:16px}
  .nav-desktop a{font-size:13px}
  .search{width:170px}
}
@media (max-width:1100px){
  .nav-desktop,.header-right .search,.header-right .quick-link{display:none}
  .menu-toggle{display:inline-flex}
  .header-inner{height:60px;justify-content:space-between}
  .site-header{top:36px}
  .timer-bar{min-height:36px}
  .timer-inner{min-height:36px}
  .timer-label{display:none}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .glass-card{max-width:520px}
  .points-wrap{grid-template-columns:1fr;gap:24px}
  .points-aside p{max-width:none}
  .metrics-grid{grid-template-columns:1fr}
  .faq-wrap{grid-template-columns:1fr;gap:24px}
  .footer-grid{grid-template-columns:1.2fr 1fr 1fr;gap:36px}
  .footer-col:last-child{grid-column:span 3}
  .cms-grid{grid-template-columns:1fr 1fr}
  .cms-feature{grid-column:span 2;grid-row:auto}
  .cta-inner{grid-template-columns:1fr}
  .cta-form{justify-content:flex-start}
  .form-note,.form-feedback{text-align:left}
}
@media (max-width:900px){
  .wall{grid-template-columns:repeat(2,1fr)}
  .wall-a,.wall-b,.wall-c,.wall-d,.wall-e,.wall-f{grid-column:auto;height:180px}
  .wall-a,.wall-c{grid-column:span 2;height:200px}
  .metric-row{grid-template-columns:repeat(2,1fr)}
  .cms-more{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  body{font-size:14.5px}
  .section{padding:56px 0}
  .hero{padding:40px 0 48px}
  .hero-lead{font-size:15px}
  .hero-actions .btn{flex:1 1 100%}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:24px}
  .cms-grid{grid-template-columns:1fr}
  .cms-feature{grid-column:auto}
  .cms-more{grid-template-columns:1fr}
  .cta-form{flex-direction:column}
  .field{flex:1 1 auto;width:100%}
  .cta-form .btn{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .footer-col:last-child{grid-column:span 2}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .faq-panel p{padding-right:12px}
}
@media (max-width:520px){
  .header-inner{height:56px}
  .logo-text strong{font-size:14px}
  .logo-text em{font-size:10px;letter-spacing:.12em}
  .header-cta{display:none}
  .hero-copy h1{font-size:26px}
  .glass-count div{font-size:16px}
  .wall{grid-template-columns:1fr}
  .wall-a,.wall-b,.wall-c,.wall-d,.wall-e,.wall-f{grid-column:auto;height:180px}
  .metric-row{grid-template-columns:1fr 1fr}
  .cms-row{flex-direction:column}
  .cms-thumb{width:100%;height:140px;flex:0 0 auto}
  .footer-grid{grid-template-columns:1fr}
  .footer-col:last-child{grid-column:auto}
  .point-item{grid-template-columns:44px minmax(0,1fr);gap:12px;padding:20px 0}
  .rating-row{grid-template-columns:66px minmax(0,1fr) 34px}
}

/* roulang page: article */
:root{
  --bg:#080D12;
  --surface:#0E1720;
  --card:#131F2A;
  --card-2:#16232F;
  --primary:#35E0B4;
  --primary-soft:#7BF0D2;
  --accent:#FF8A3D;
  --muted:#6F8BA8;
  --text:#E8F1F5;
  --body:#C3D2DB;
  --dim:#8A9BA8;
  --line:rgba(255,255,255,.08);
  --line-hover:rgba(53,224,180,.45);
  --radius-lg:18px;
  --radius:16px;
  --radius-sm:12px;
  --radius-xs:8px;
  --shadow:0 8px 24px rgba(0,0,0,.35), inset 0 1px 0 rgba(255,255,255,.05);
  --shadow-hover:0 14px 36px rgba(0,0,0,.45), inset 0 1px 0 rgba(255,255,255,.07);
  --glow:0 0 0 1px rgba(53,224,180,.5), 0 6px 22px rgba(53,224,180,.25);
  --ease:cubic-bezier(.2,.7,.3,1);
  --space-section:96px;
  --font-cn:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--body);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .18s var(--ease);}
a:hover{color:var(--primary-soft);}
button{font-family:inherit;}
input,button,textarea{font-size:inherit;}
h1,h2,h3,h4{margin:0;color:var(--text);letter-spacing:-.01em;line-height:1.35;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
::selection{background:rgba(53,224,180,.28);color:#fff;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 clamp(16px,4vw,40px);
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(8,13,18,.86);
  border-bottom:1px solid var(--line);
  transition:background .25s var(--ease), box-shadow .25s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(8,13,18,.78);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  box-shadow:0 8px 24px rgba(0,0,0,.32);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  height:64px;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  color:var(--text);
}
.logo:hover{color:var(--text);}
.logo-mark{width:34px;height:34px;flex-shrink:0;}
.logo-text{display:flex;flex-direction:column;line-height:1.1;}
.logo-text strong{font-size:15px;font-weight:700;color:var(--text);letter-spacing:.01em;}
.logo-text em{font-style:normal;font-size:11px;font-weight:500;color:var(--muted);letter-spacing:.14em;}
.nav-desktop{
  display:flex;
  align-items:center;
  gap:22px;
  margin-left:6px;
  flex:1;
}
.nav-desktop a{
  position:relative;
  font-size:13.5px;
  font-weight:500;
  color:var(--dim);
  padding:20px 0;
  white-space:nowrap;
  transition:color .18s var(--ease);
}
.nav-desktop a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:12px;
  height:2px;
  background:var(--primary);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .2s var(--ease);
}
.nav-desktop a:hover{color:var(--text);}
.nav-desktop a:hover::after,
.nav-desktop a.is-active::after{transform:scaleX(1);}
.nav-desktop a.is-active{color:var(--text);}
.header-right{
  display:flex;
  align-items:center;
  gap:14px;
  margin-left:auto;
}
.search{
  display:flex;
  align-items:center;
  gap:8px;
  width:220px;
  height:36px;
  padding:0 10px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:10px;
  color:var(--muted);
  transition:border-color .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease);
}
.search:focus-within{
  border-color:var(--primary);
  box-shadow:0 0 0 2px rgba(53,224,180,.18);
  background:rgba(255,255,255,.06);
}
.search input{
  flex:1;
  min-width:0;
  border:0;
  background:transparent;
  color:var(--text);
  font-size:13px;
  outline:none;
}
.search input::placeholder{color:var(--muted);}
.search kbd{
  font-family:var(--font-mono);
  font-size:11px;
  color:var(--dim);
  border:1px solid var(--line);
  border-radius:5px;
  padding:1px 5px;
  background:rgba(255,255,255,.03);
}
.quick-link{
  font-size:13px;
  color:var(--dim);
  white-space:nowrap;
}
.quick-link:hover{color:var(--primary);}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 24px;
  font-size:14px;
  font-weight:600;
  border-radius:10px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s var(--ease), box-shadow .18s var(--ease), background .18s var(--ease), border-color .18s var(--ease), filter .18s var(--ease);
}
.btn:active{transform:translateY(0);}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),#1FB894);
  color:#04140F;
  box-shadow:var(--glow);
}
.btn-primary:hover{
  color:#04140F;
  filter:brightness(1.08);
  transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(53,224,180,.6),0 10px 28px rgba(53,224,180,.32);
}
.btn-ghost{
  background:transparent;
  color:var(--text);
  border-color:rgba(255,255,255,.18);
}
.btn-ghost:hover{
  color:var(--text);
  border-color:var(--primary);
  transform:translateY(-1px);
}
.header-cta{height:38px;padding:0 18px;font-size:13.5px;}
.menu-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:38px;height:38px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:10px;
  color:var(--text);
  cursor:pointer;
}
.menu-toggle:hover{border-color:var(--line-hover);}
.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:rgba(10,17,24,.98);
  backdrop-filter:blur(14px);
}
.mobile-drawer.open{display:block;}
.mobile-drawer .container{padding-top:16px;padding-bottom:20px;}
.mobile-search{
  display:flex;align-items:center;gap:8px;
  height:42px;padding:0 12px;margin-bottom:14px;
  border:1px solid var(--line);border-radius:10px;
  background:rgba(255,255,255,.04);color:var(--muted);
}
.mobile-search input{flex:1;border:0;background:transparent;color:var(--text);font-size:13px;outline:none;}
.mobile-nav{display:flex;flex-direction:column;}
.mobile-nav a{
  padding:12px 2px;
  font-size:14px;
  color:var(--body);
  border-bottom:1px solid rgba(255,255,255,.05);
}
.mobile-nav a:hover,.mobile-nav a.is-active{color:var(--primary);}
.mobile-drawer .btn{width:100%;margin-top:16px;}

/* ---------- Article hero ---------- */
.article-hero{
  position:relative;
  padding:44px 0 52px;
  background-image:linear-gradient(180deg,rgba(8,13,18,.82),rgba(8,13,18,.97)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:12px;
  color:var(--dim);
  margin-bottom:22px;
}
.breadcrumb a{color:var(--dim);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:rgba(255,255,255,.18);}
.breadcrumb .current{color:var(--body);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px;
  margin-bottom:18px;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  font-weight:600;
  line-height:1;
  padding:6px 10px;
  border-radius:6px;
  color:var(--primary);
  background:rgba(53,224,180,.12);
  border:1px solid rgba(53,224,180,.22);
}
.badge-accent{
  color:var(--accent);
  background:rgba(255,138,61,.12);
  border-color:rgba(255,138,61,.26);
}
.meta-item{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12.5px;
  color:var(--dim);
  font-family:var(--font-mono);
}
.meta-item.plain{font-family:var(--font-cn);}
.article-title{
  font-size:clamp(24px,3vw,34px);
  font-weight:700;
  line-height:1.45;
  max-width:20ch;
  color:var(--text);
}
.article-title.long{max-width:26ch;}

/* ---------- Article layout ---------- */
.article-section{padding:var(--space-section) 0;}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,760px) 280px;
  gap:40px;
  justify-content:center;
  align-items:start;
}
.article-body{
  max-width:760px;
  color:var(--body);
  font-size:16px;
  line-height:1.95;
}
.article-body p{margin:0 0 20px;}
.article-body h2{
  position:relative;
  font-size:22px;
  font-weight:700;
  margin:40px 0 14px;
  padding-left:14px;
  color:var(--text);
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:6px;bottom:6px;
  width:3px;
  border-radius:3px;
  background:var(--primary);
}
.article-body h3{font-size:18px;font-weight:600;margin:28px 0 12px;color:var(--text);}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:20px;list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:8px;}
.article-body blockquote{
  margin:24px 0;
  padding:16px 18px;
  border-left:3px solid var(--accent);
  background:rgba(255,255,255,.06);
  border-radius:0 10px 10px 0;
  color:var(--body);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:12px;margin:24px 0;width:100%;height:auto;}
.article-body figure{margin:24px 0;}
.article-body figcaption{
  font-size:12px;
  color:var(--dim);
  text-align:center;
  margin-top:10px;
}
.article-body a{
  color:var(--primary);
  text-decoration:underline;
  text-underline-offset:3px;
  text-decoration-thickness:1px;
}
.article-body a:hover{color:var(--primary-soft);}
.article-body strong{color:var(--text);font-weight:600;}
.article-body hr{
  border:0;
  border-top:1px solid var(--line);
  margin:36px 0;
}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:24px 0;
  font-size:14px;
}
.article-body th,.article-body td{
  border:1px solid var(--line);
  padding:10px 14px;
  text-align:left;
}
.article-body th{background:rgba(255,255,255,.04);color:var(--text);}
.article-body code{
  font-family:var(--font-mono);
  font-size:14px;
  background:rgba(255,255,255,.06);
  border:1px solid var(--line);
  border-radius:6px;
  padding:1px 6px;
  color:var(--primary-soft);
}
.article-empty{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:16px;
  padding:56px 24px;
  text-align:center;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}
.article-empty svg{color:var(--muted);}
.article-empty h2{font-size:18px;margin:0;}
.article-empty p{color:var(--dim);font-size:14px;margin:0;}

/* ---------- Sidebar ---------- */
.article-side{
  position:sticky;
  top:88px;
  display:flex;
  flex-direction:column;
  gap:20px;
}
.side-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:20px;
  box-shadow:var(--shadow);
}
.side-card h3{
  font-size:13px;
  font-weight:700;
  letter-spacing:.06em;
  color:var(--text);
  margin-bottom:14px;
  text-transform:uppercase;
}
.side-tip p{font-size:13px;line-height:1.8;color:var(--dim);margin:0;}
.side-tip .badge{margin-bottom:12px;}
.side-list{display:flex;flex-direction:column;}
.side-list a{
  display:block;
  padding:12px 0;
  border-bottom:1px solid rgba(255,255,255,.05);
}
.side-list a:last-child{border-bottom:0;padding-bottom:0;}
.side-list a:first-child{padding-top:0;}
.side-list .side-title{
  display:block;
  font-size:13.5px;
  font-weight:600;
  color:var(--text);
  line-height:1.6;
  transition:color .18s var(--ease);
}
.side-list a:hover .side-title{color:var(--primary);}
.side-list .side-time{
  display:block;
  font-family:var(--font-mono);
  font-size:11.5px;
  color:var(--muted);
  margin-top:4px;
}

/* ---------- Related ---------- */
.related-section{
  padding:0 0 var(--space-section);
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:28px;
}
.section-head h2{
  font-size:clamp(20px,2.2vw,26px);
  font-weight:700;
}
.section-head p{
  font-size:13px;
  color:var(--dim);
  margin-top:6px;
}
.section-link{
  font-size:13px;
  color:var(--primary);
  white-space:nowrap;
}
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.card{
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .18s var(--ease), border-color .18s var(--ease), box-shadow .18s var(--ease);
}
.card:hover{
  transform:translateY(-2px);
  border-color:var(--line-hover);
  box-shadow:var(--shadow-hover);
}
.card-media{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--card-2);
}
.card-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .28s var(--ease);
}
.card:hover .card-media img{transform:scale(1.04);}
.card-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(8,13,18,0) 40%,rgba(8,13,18,.72) 100%);
}
.card-tag{
  position:absolute;
  left:14px;bottom:12px;
  z-index:2;
  font-size:11.5px;
  font-weight:600;
  color:var(--primary);
  background:rgba(8,13,18,.72);
  border:1px solid rgba(53,224,180,.28);
  border-radius:6px;
  padding:4px 9px;
  backdrop-filter:blur(6px);
}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1;}
.card-title{
  font-size:16px;
  font-weight:600;
  color:var(--text);
  line-height:1.55;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  transition:color .18s var(--ease);
}
.card:hover .card-title{color:var(--primary);}
.card-desc{
  font-size:13.5px;
  color:var(--dim);
  line-height:1.75;
  margin-top:10px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:16px;
  padding-top:14px;
  border-top:1px solid rgba(255,255,255,.05);
}
.card-foot .time{
  font-family:var(--font-mono);
  font-size:12px;
  color:var(--muted);
}
.card-foot .go{
  font-size:12.5px;
  font-weight:600;
  color:var(--primary);
}
.back-row{margin-top:36px;display:flex;justify-content:center;}

/* ---------- CTA strip ---------- */
.cta-strip{
  position:relative;
  margin-bottom:var(--space-section);
  border-radius:var(--radius-lg);
  border:1px solid rgba(255,255,255,.09);
  background:rgba(255,255,255,.06);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.14), var(--shadow);
  padding:32px clamp(20px,3vw,40px);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
  overflow:hidden;
}
.cta-strip::before{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(600px 200px at 12% 0%,rgba(53,224,180,.16),transparent 70%);
  pointer-events:none;
}
.cta-text{position:relative;z-index:1;}
.cta-text h2{font-size:clamp(18px,2vw,22px);font-weight:700;}
.cta-text p{font-size:13.5px;color:var(--dim);margin-top:6px;}
.cta-form{
  position:relative;
  z-index:1;
  display:flex;
  gap:10px;
  flex-wrap:wrap;
}
.cta-form input{
  height:44px;
  min-width:220px;
  padding:0 14px;
  border-radius:10px;
  border:1px solid var(--line);
  background:rgba(8,13,18,.55);
  color:var(--text);
  font-size:14px;
  outline:none;
  transition:border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.cta-form input::placeholder{color:var(--muted);}
.cta-form input:focus{
  border-color:var(--primary);
  box-shadow:0 0 0 2px rgba(53,224,180,.18);
}
.cta-note{
  position:relative;
  z-index:1;
  flex-basis:100%;
  font-size:11.5px;
  color:var(--muted);
}

/* ---------- Footer ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:var(--surface);
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:48px;
}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand p{
  font-size:13.5px;
  color:var(--dim);
  line-height:1.8;
  max-width:32ch;
}
.footer-col h4{
  font-size:13px;
  font-weight:700;
  letter-spacing:.06em;
  color:var(--text);
  margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:13.5px;color:var(--dim);}
.footer-col a:hover{color:var(--primary);}
.footer-contact li{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:var(--dim);
}
.footer-contact svg{color:var(--muted);flex-shrink:0;}
.footer-bottom{
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:12.5px;
  color:var(--muted);
}
.footer-bottom .mono{font-family:var(--font-mono);}

/* ---------- Responsive ---------- */
@media (max-width:1023px){
  :root{--space-section:72px;}
  .nav-desktop,.search,.quick-link{display:none;}
  .menu-toggle{display:inline-flex;}
  .header-cta{display:none;}
  .header-inner{height:56px;gap:16px;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;}
  .article-side{position:static;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:767px){
  :root{--space-section:56px;}
  body{font-size:15.5px;}
  .article-hero{padding:32px 0 38px;}
  .article-title{max-width:100%;font-size:22px;}
  .article-body{font-size:15.5px;line-height:1.9;}
  .article-body h2{font-size:19px;margin-top:32px;}
  .article-body h3{font-size:16.5px;}
  .related-grid{grid-template-columns:minmax(0,1fr);}
  .cta-strip{padding:24px 18px;}
  .cta-form{width:100%;}
  .cta-form input{flex:1;min-width:0;}
  .cta-form .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .breadcrumb .current{white-space:normal;}
}
@media (max-width:520px){
  .logo-text strong{font-size:14px;}
  .article-meta{gap:8px;}
  .badge{font-size:11px;padding:5px 8px;}
  .btn{width:100%;}
  .card-body{padding:16px;}
}

/* roulang page: category1 */
:root{
  --bg:#080D12;
  --surface:#0E1720;
  --card:#131F2A;
  --primary:#35E0B4;
  --primary-soft:#7BF0D2;
  --primary-deep:#1FB894;
  --accent:#FF8A3D;
  --muted:#6F8BA8;
  --text:#E8F1F5;
  --body:#C3D2DB;
  --weak:#8A9BA8;
  --border:rgba(255,255,255,.08);
  --border-hover:rgba(53,224,180,.45);
  --radius-lg:20px;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 14px 36px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(53,224,180,.5),0 6px 22px rgba(53,224,180,.25);
  --container:1200px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  --mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:15px;
  line-height:1.85;
  color:var(--body);
  background-color:var(--bg);
  background-image:radial-gradient(900px 520px at 12% -8%,rgba(53,224,180,.10),transparent 62%),
                   radial-gradient(760px 460px at 92% 4%,rgba(255,138,61,.07),transparent 60%);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700;letter-spacing:-.01em;line-height:1.3}
p{margin:0}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease)}
img{display:block;max-width:100%;height:auto}
button{font-family:inherit}
input,button,select,textarea{font:inherit}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(53,224,180,.25);color:#fff}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 clamp(16px,4vw,40px);
}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--radius-sm);
  font-size:14px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;white-space:nowrap;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease),border-color .18s var(--ease),filter .18s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-deep) 100%);
  color:#04231B;
  box-shadow:var(--glow);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(53,224,180,.6),0 10px 26px rgba(53,224,180,.32)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:transparent;color:var(--text);
  border-color:rgba(255,255,255,.18);
}
.btn-ghost:hover{border-color:var(--border-hover);color:var(--primary-soft);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-block{width:100%}

/* ---------- 页头 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(8,13,18,.86);
  border-bottom:1px solid var(--border);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  transition:box-shadow .22s var(--ease),background-color .22s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 8px 26px rgba(0,0,0,.45);background:rgba(8,13,18,.94)}
.header-inner{display:flex;align-items:center;gap:clamp(10px,1.6vw,22px);height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{width:36px;height:36px;flex-shrink:0}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text strong{font-size:15px;font-weight:700;color:var(--text);letter-spacing:.01em}
.logo-text em{font-style:normal;font-size:11px;font-weight:500;color:var(--muted);letter-spacing:.18em}
.nav-desktop{display:flex;align-items:center;gap:clamp(8px,1.1vw,18px);margin-left:6px}
.nav-desktop a{
  position:relative;padding:6px 2px;font-size:13.5px;color:var(--body);white-space:nowrap;
}
.nav-desktop a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);
}
.nav-desktop a:hover{color:var(--text)}
.nav-desktop a:hover::after,.nav-desktop a.is-active::after{transform:scaleX(1)}
.nav-desktop a.is-active{color:var(--primary-soft);font-weight:600}
.header-right{display:flex;align-items:center;gap:12px;margin-left:auto}
.search{
  display:flex;align-items:center;gap:8px;
  width:200px;height:36px;padding:0 10px;
  border:1px solid var(--border);border-radius:var(--radius-sm);
  background:rgba(255,255,255,.03);color:var(--muted);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease);
}
.search:focus-within{border-color:var(--primary);box-shadow:0 0 0 2px rgba(53,224,180,.18);background:rgba(255,255,255,.05)}
.search input{
  flex:1;min-width:0;border:0;background:transparent;color:var(--text);
  font-size:13px;outline:none;
}
.search input::placeholder{color:var(--muted)}
.search kbd{
  font-family:var(--mono);font-size:10px;color:var(--weak);
  border:1px solid var(--border);border-radius:5px;padding:1px 5px;background:rgba(255,255,255,.04);
}
.quick-link{font-size:13px;color:var(--body)}
.quick-link:hover{color:var(--primary-soft)}
.header-cta{height:38px;padding:0 18px;font-size:13px}
.menu-toggle{
  display:none;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:var(--radius-sm);
  border:1px solid var(--border);background:rgba(255,255,255,.03);color:var(--text);cursor:pointer;
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.menu-toggle:hover{border-color:var(--border-hover);color:var(--primary-soft)}
.mobile-drawer{display:none;border-top:1px solid var(--border);background:rgba(10,16,22,.98)}
.mobile-drawer.is-open{display:block}
.mobile-drawer .container{padding-top:16px;padding-bottom:20px}
.mobile-search{display:flex;align-items:center;gap:8px;height:42px;padding:0 12px;margin-bottom:14px;border:1px solid var(--border);border-radius:var(--radius-sm);background:rgba(255,255,255,.03);color:var(--muted)}
.mobile-search input{flex:1;min-width:0;border:0;background:transparent;color:var(--text);font-size:14px;outline:none}
.mobile-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:16px}
.mobile-nav a{padding:11px 4px;font-size:14.5px;color:var(--body);border-bottom:1px solid rgba(255,255,255,.05)}
.mobile-nav a.is-active{color:var(--primary-soft);font-weight:600}
.mobile-drawer .btn{width:100%}

/* ---------- 首屏横幅 ---------- */
.page-hero{padding:clamp(24px,3.4vw,44px) 0 clamp(28px,4vw,52px)}
.hero-banner{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  border:1px solid var(--border);
  min-height:clamp(240px,32vw,300px);
  display:flex;align-items:flex-end;
  box-shadow:var(--shadow);
  isolation:isolate;
}
.hero-banner img.banner-bg{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  z-index:-2;
}
.hero-banner::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(8,13,18,.55) 0%,rgba(8,13,18,.78) 58%,rgba(8,13,18,.94) 100%);
}
.hero-banner-inner{padding:clamp(20px,3vw,36px);max-width:760px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.16em;color:var(--primary);
  text-transform:uppercase;font-weight:600;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--primary);display:inline-block}
.hero-banner h1{
  margin:14px 0 12px;
  font-size:clamp(26px,3.3vw,42px);
  line-height:1.25;
}
.hero-sub{font-size:clamp(14px,1.35vw,16px);color:var(--body);max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.hero-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;color:var(--primary-soft);
  padding:5px 10px;border-radius:6px;
  background:rgba(53,224,180,.12);
  border:1px solid rgba(53,224,180,.22);
}
.chip.accent{color:var(--accent);background:rgba(255,138,61,.12);border-color:rgba(255,138,61,.22)}
.chip.muted{color:var(--weak);background:rgba(255,255,255,.05);border-color:var(--border)}

/* ---------- 板块通用 ---------- */
.section{padding:clamp(44px,6vw,88px) 0}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:clamp(22px,3vw,36px)}
.section-head .title-block{max-width:640px}
.section-head h2{font-size:clamp(21px,2.1vw,29px);line-height:1.35}
.section-head p{margin-top:10px;font-size:14.5px;color:var(--weak)}
.text-link{font-size:13.5px;color:var(--primary-soft);display:inline-flex;align-items:center;gap:6px}
.text-link::after{content:"→";transition:transform .18s var(--ease)}
.text-link:hover::after{transform:translateX(4px)}

/* ---------- 要点竖列 ---------- */
.point-layout{display:grid;grid-template-columns:240px 1fr;gap:clamp(20px,4vw,56px);align-items:start}
.point-side{position:sticky;top:88px}
.point-side h2{font-size:clamp(20px,1.9vw,26px)}
.point-side p{margin-top:10px;font-size:13.5px;color:var(--weak)}
.point-list{border-top:1px solid var(--border)}
.point-item{
  display:grid;grid-template-columns:64px 1fr;gap:18px;align-items:start;
  padding:22px 0;border-bottom:1px solid var(--border);
  transition:padding .2s var(--ease);
}
.point-num{
  font-family:var(--mono);font-size:22px;font-weight:600;color:var(--muted);
  letter-spacing:.04em;transition:color .2s var(--ease);
}
.point-body h3{font-size:16px;font-weight:600;margin-bottom:6px}
.point-body p{font-size:14px;color:var(--weak);line-height:1.8}
.point-item:hover .point-num{color:var(--accent)}
.point-item:hover .point-body h3{color:var(--primary-soft)}
.point-item:hover{transform:translateX(2px)}

/* ---------- 图墙 ---------- */
.gallery{
  display:grid;grid-template-columns:repeat(4,1fr);
  grid-auto-rows:132px;gap:16px;
}
.tile{
  position:relative;overflow:hidden;border-radius:var(--radius);
  border:1px solid var(--border);background:var(--card);
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.tile img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease);}
.tile::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(8,13,18,0) 34%,rgba(8,13,18,.86) 100%);
}
.tile figcaption{
  position:absolute;left:0;right:0;bottom:0;z-index:2;
  padding:14px 16px;display:flex;flex-direction:column;gap:4px;
}
.tile .tile-tag{
  align-self:flex-start;font-size:11px;letter-spacing:.08em;
  color:var(--primary-soft);background:rgba(53,224,180,.14);
  border:1px solid rgba(53,224,180,.24);border-radius:6px;padding:2px 8px;
}
.tile .tile-title{font-size:15px;font-weight:600;color:var(--text)}
.tile .tile-desc{font-size:12.5px;color:var(--weak);line-height:1.6}
.tile:hover{transform:translateY(-2px);border-color:var(--border-hover);box-shadow:var(--shadow-hover)}
.tile:hover img{transform:scale(1.04)}
.tile-1{grid-column:span 2;grid-row:span 2}
.tile-4,.tile-5,.tile-6{grid-column:span 2}
.tile-1 .tile-title{font-size:18px}
.tile-1 .tile-desc{font-size:13.5px}
.gallery-note{margin-top:16px;font-size:13px;color:var(--weak)}

/* ---------- 场景卡 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow);
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.card:hover{transform:translateY(-2px);border-color:var(--border-hover);box-shadow:var(--shadow-hover)}
.card-icon{
  width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:rgba(53,224,180,.12);border:1px solid rgba(53,224,180,.22);color:var(--primary);
  margin-bottom:16px;
}
.card h3{font-size:16.5px;margin-bottom:8px}
.card p{font-size:14px;color:var(--weak);line-height:1.8}
.card .card-list{margin-top:14px;display:flex;flex-direction:column;gap:8px}
.card .card-list li{position:relative;padding-left:16px;font-size:13.5px;color:var(--body)}
.card .card-list li::before{
  content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;
  background:var(--primary);opacity:.8;
}

/* ---------- 流程步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;counter-reset:step}
.step{
  position:relative;padding:22px 20px 24px;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  transition:border-color .18s var(--ease),transform .18s var(--ease),background-color .18s var(--ease);
}
.step::before{
  counter-increment:step;content:"0" counter(step);
  font-family:var(--mono);font-size:13px;color:var(--accent);letter-spacing:.1em;
  display:block;margin-bottom:12px;
}
.step h3{font-size:15.5px;margin-bottom:8px}
.step p{font-size:13.5px;color:var(--weak);line-height:1.8}
.step:hover{border-color:var(--border-hover);transform:translateY(-2px);background:var(--card)}

/* ---------- 常见问题 ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);margin-bottom:12px;overflow:hidden;transition:border-color .18s var(--ease)}
.faq-item.is-open{border-color:var(--border-hover)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;background:transparent;border:0;cursor:pointer;text-align:left;
  color:var(--text);font-size:15px;font-weight:600;line-height:1.6;
}
.faq-q:hover{color:var(--primary-soft)}
.faq-icon{
  flex-shrink:0;width:22px;height:22px;border-radius:6px;position:relative;
  border:1px solid var(--border);background:rgba(255,255,255,.04);
  transition:transform .2s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;top:50%;left:50%;background:var(--primary);
  transform:translate(-50%,-50%);border-radius:1px;transition:opacity .2s var(--ease);
}
.faq-icon::before{width:10px;height:1.6px}
.faq-icon::after{width:1.6px;height:10px}
.faq-item.is-open .faq-icon{transform:rotate(45deg);border-color:rgba(53,224,180,.4);background:rgba(53,224,180,.12)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .24s var(--ease);
}
.faq-a-inner{padding:0 22px 20px;font-size:14px;color:var(--body);line-height:1.9}
.faq-a-inner p+p{margin-top:12px}

/* ---------- 引导条带 ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.06);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.14),var(--shadow);
  padding:clamp(22px,3.2vw,38px);
  display:grid;grid-template-columns:1fr 1fr;gap:clamp(20px,3vw,40px);align-items:center;
}
.cta-band::before{
  content:"";position:absolute;right:-80px;top:-120px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(53,224,180,.20),transparent 68%);pointer-events:none;
}
.cta-band h2{font-size:clamp(20px,2vw,26px);margin-bottom:10px}
.cta-band p{font-size:14px;color:var(--body)}
.cta-form{display:flex;flex-wrap:wrap;gap:10px}
.cta-form input{
  flex:1 1 200px;height:44px;min-width:0;padding:0 14px;
  border-radius:var(--radius-sm);border:1px solid var(--border);
  background:rgba(8,13,18,.55);color:var(--text);font-size:14px;outline:none;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.cta-form input::placeholder{color:var(--muted)}
.cta-form input:focus{border-color:var(--primary);box-shadow:0 0 0 2px rgba(53,224,180,.18)}
.cta-form .btn{flex:0 0 auto}
.form-note{flex-basis:100%;font-size:11.5px;color:var(--weak);line-height:1.7}
.form-msg{flex-basis:100%;font-size:12.5px;color:var(--primary-soft);min-height:0}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--border);background:rgba(10,16,22,.7);margin-top:clamp(30px,5vw,60px)}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:clamp(24px,4vw,48px);
  padding:clamp(36px,5vw,64px) 0 clamp(24px,3vw,36px);
}
.footer-brand p{margin-top:16px;font-size:13.5px;color:var(--weak);line-height:1.85;max-width:300px}
.footer-col h4{font-size:13px;letter-spacing:.12em;color:var(--text);margin-bottom:14px;font-weight:600}
.footer-col a,.footer-col span{display:block;font-size:13.5px;color:var(--weak);padding:5px 0}
.footer-col a:hover{color:var(--primary-soft)}
.footer-col .contact-line{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--weak);padding:5px 0}
.footer-col .contact-line svg{flex-shrink:0;color:var(--primary)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  padding:18px 0 26px;border-top:1px solid var(--border);
  font-size:12.5px;color:var(--weak);
}
.footer-bottom .mono{font-family:var(--mono);letter-spacing:.02em}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .search{width:168px}
  .quick-link{display:none}
  .nav-desktop a{font-size:13px}
}
@media (max-width:1023px){
  .nav-desktop,.search,.quick-link,.header-cta{display:none}
  .menu-toggle{display:inline-flex}
  .gallery{grid-template-columns:repeat(2,1fr);grid-auto-rows:124px}
  .tile-1,.tile-4,.tile-5,.tile-6{grid-column:span 1;grid-row:span 1}
  .tile-1 .tile-title{font-size:15px}
  .tile-1 .tile-desc{font-size:12.5px}
  .point-layout{grid-template-columns:1fr;gap:24px}
  .point-side{position:static}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .cta-band{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:767px){
  body{font-size:14.5px}
  .header-inner{height:56px}
  .logo-mark{width:32px;height:32px}
  .logo-text strong{font-size:14px}
  .logo-text em{font-size:10px;letter-spacing:.14em}
  .section{padding:clamp(36px,7vw,56px) 0}
  .gallery{grid-auto-rows:118px;gap:12px}
  .tile .tile-desc{display:none}
  .grid-3{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .point-item{grid-template-columns:52px 1fr;gap:12px}
  .point-num{font-size:19px}
  .hero-actions .btn{flex:1 1 100%}
  .cta-form .btn{flex:1 1 100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px}
  .faq-q{font-size:14.5px;padding:16px 18px}
  .faq-a-inner{padding:0 18px 18px}
}
@media (max-width:520px){
  .hero-banner{min-height:270px}
  .hero-banner-inner{padding:20px}
  .gallery{grid-template-columns:1fr;grid-auto-rows:170px}
  .tile .tile-desc{display:block}
  .card{padding:20px}
  .step{padding:18px}
}

/* roulang page: category2 */
:root{
  --bg:#080D12;
  --surface:#0E1720;
  --card:#131F2A;
  --card-2:#16232F;
  --primary:#35E0B4;
  --primary-soft:#7BF0D2;
  --primary-dim:rgba(53,224,180,.12);
  --accent:#FF8A3D;
  --muted:#6F8BA8;
  --text:#E8F1F5;
  --body:#C3D2DB;
  --dim:#8A9BA8;
  --line:rgba(255,255,255,.08);
  --line-hover:rgba(53,224,180,.45);
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 14px 36px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(53,224,180,.5), 0 6px 22px rgba(53,224,180,.25);
  --ease:cubic-bezier(.2,.7,.3,1);
  --mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--body);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--primary);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--primary-soft)}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:4px}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 clamp(16px,4vw,40px);
}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(8,13,18,.86);
  border-bottom:1px solid var(--line);
  transition:background .2s var(--ease),box-shadow .2s var(--ease),backdrop-filter .2s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(8,13,18,.78);
  backdrop-filter:blur(12px);
  box-shadow:0 8px 24px rgba(0,0,0,.28);
}
.header-inner{
  display:flex;align-items:center;gap:24px;
  min-height:64px;
}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text)}
.logo-mark{width:34px;height:34px;flex:0 0 auto}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text strong{font-size:15px;font-weight:700;letter-spacing:-.01em;color:var(--text)}
.logo-text em{font-size:11px;font-style:normal;font-weight:500;color:var(--muted);letter-spacing:.06em}
.nav-desktop{display:flex;align-items:center;gap:22px;margin-left:8px;flex:1 1 auto}
.nav-desktop a{
  position:relative;
  font-size:14px;color:var(--dim);padding:6px 0;
  transition:color .18s var(--ease);
}
.nav-desktop a::after{
  content:"";position:absolute;left:0;right:0;bottom:-15px;height:2px;
  background:var(--primary);border-radius:2px;opacity:0;transform:scaleX(.6);
  transition:opacity .18s var(--ease),transform .18s var(--ease);
}
.nav-desktop a:hover{color:var(--text)}
.nav-desktop a.is-active{color:var(--text);font-weight:600}
.nav-desktop a.is-active::after{opacity:1;transform:scaleX(1)}
.header-right{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.search{
  display:flex;align-items:center;gap:8px;
  width:220px;height:36px;padding:0 10px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);border-radius:var(--radius-sm);
  color:var(--muted);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.search:focus-within{border-color:var(--primary);box-shadow:0 0 0 2px rgba(53,224,180,.18)}
.search input{
  flex:1 1 auto;min-width:0;height:100%;border:0;background:none;outline:none;
  font-size:13px;color:var(--text);
}
.search input::placeholder{color:var(--muted)}
.search kbd{
  font-family:var(--mono);font-size:10px;color:var(--muted);
  padding:2px 5px;border:1px solid var(--line);border-radius:5px;
}
.quick-link{font-size:13px;color:var(--dim);white-space:nowrap}
.quick-link:hover{color:var(--primary)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--radius-sm);
  font-size:14px;font-weight:600;letter-spacing:.01em;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),filter .18s var(--ease),border-color .18s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary) 0%,#1FB894 100%);
  color:#04231C;
  box-shadow:var(--glow);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(53,224,180,.65),0 10px 28px rgba(53,224,180,.32);color:#04231C}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:transparent;color:var(--text);
  border:1px solid rgba(255,255,255,.18);
}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary-soft);transform:translateY(-1px)}
.header-cta{height:38px;padding:0 18px;font-size:13px}
.menu-toggle{
  display:none;align-items:center;justify-content:center;
  width:38px;height:38px;border:1px solid var(--line);border-radius:var(--radius-sm);
  color:var(--text);background:rgba(255,255,255,.04);
}
.menu-toggle:hover{border-color:var(--line-hover);color:var(--primary)}
.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:rgba(8,13,18,.98);
  backdrop-filter:blur(14px);
  padding:16px 0 22px;
}
.mobile-drawer.is-open{display:block}
.mobile-search{
  display:flex;align-items:center;gap:8px;
  height:40px;padding:0 12px;margin-bottom:14px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:var(--radius-sm);
  color:var(--muted);
}
.mobile-search input{flex:1;border:0;background:none;outline:none;font-size:14px;color:var(--text)}
.mobile-drawer nav{display:grid;gap:2px}
.mobile-drawer nav a{
  display:block;padding:11px 12px;border-radius:8px;
  font-size:15px;color:var(--dim);
}
.mobile-drawer nav a:hover,.mobile-drawer nav a.is-active{background:rgba(53,224,180,.08);color:var(--primary)}
.mobile-drawer .btn{margin-top:14px;width:100%}

/* ============ page banner ============ */
.page-banner{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-banner__media{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  transform:scale(1.02);
}
.page-banner__media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(8,13,18,.72) 0%,rgba(8,13,18,.9) 100%);
}
.page-banner__inner{
  position:relative;z-index:2;
  padding:72px 0 64px;
  max-width:820px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mono);font-size:12px;letter-spacing:.14em;
  color:var(--primary);text-transform:uppercase;
  padding:5px 10px;border:1px solid rgba(53,224,180,.35);border-radius:6px;
  background:var(--primary-dim);
}
.page-banner h1{
  margin-top:20px;
  font-size:clamp(28px,3.4vw,44px);
  line-height:1.25;font-weight:700;letter-spacing:-.01em;color:var(--text);
}
.page-banner .lede{
  margin-top:18px;font-size:16px;line-height:1.9;color:var(--body);max-width:680px;
}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:12px;color:var(--muted);margin-bottom:22px;
}
.crumbs a{color:var(--dim)}
.crumbs a:hover{color:var(--primary)}
.crumbs span.sep{color:rgba(255,255,255,.2)}
.crumbs span.now{color:var(--body)}
.banner-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;line-height:1;
  padding:7px 10px;border-radius:6px;
  background:var(--primary-dim);color:var(--primary);
  border:1px solid rgba(53,224,180,.22);
}
.badge--accent{background:rgba(255,138,61,.12);color:var(--accent);border-color:rgba(255,138,61,.25)}
.badge--muted{background:rgba(255,255,255,.05);color:var(--dim);border-color:var(--line)}

/* ============ section head ============ */
.section-head{max-width:720px;margin-bottom:48px}
.section-head h2{
  font-size:clamp(22px,2.2vw,30px);line-height:1.35;font-weight:700;
  letter-spacing:-.01em;color:var(--text);
}
.section-head p{margin-top:14px;font-size:15px;line-height:1.9;color:var(--dim)}
.section-head .kicker{
  display:block;font-family:var(--mono);font-size:12px;letter-spacing:.16em;
  color:var(--primary);margin-bottom:14px;
}

/* ============ steps ============ */
.steps{display:grid;gap:28px}
.step{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:36px;align-items:center;
  padding:32px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  transition:border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.step:hover{border-color:var(--line-hover);transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.step__num{
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:14px;font-weight:600;
  width:44px;height:44px;border-radius:10px;
  color:var(--accent);background:rgba(255,138,61,.1);
  border:1px solid rgba(255,138,61,.28);
  margin-bottom:18px;
}
.step h3{font-size:18px;font-weight:600;color:var(--text);line-height:1.5}
.step p{margin-top:12px;font-size:15px;line-height:1.9;color:var(--body)}
.step__list{margin-top:18px;display:grid;gap:10px}
.step__list li{
  position:relative;padding-left:20px;font-size:14px;line-height:1.8;color:var(--dim);
}
.step__list li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:8px;height:2px;border-radius:2px;background:var(--primary);
}
.step__figure{
  position:relative;border-radius:12px;overflow:hidden;
  border:1px solid var(--line);aspect-ratio:16/11;background:var(--card-2);
}
.step__figure img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.step:hover .step__figure img{transform:scale(1.04)}
.step__figure figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:26px 16px 12px;font-size:12px;color:var(--text);
  background:linear-gradient(180deg,rgba(8,13,18,0) 0%,rgba(8,13,18,.88) 100%);
}
.step:nth-child(even){grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr)}
.step:nth-child(even) .step__figure{order:-1}

/* ============ why grid ============ */
.why-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.why-card{
  padding:26px 24px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  transition:border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.why-card:hover{border-color:var(--line-hover);transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.why-card .ico{
  width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:var(--primary-dim);color:var(--primary);margin-bottom:16px;
}
.why-card h3{font-size:16px;font-weight:600;color:var(--text);line-height:1.5}
.why-card p{margin-top:10px;font-size:14px;line-height:1.85;color:var(--dim)}

/* ============ checklist ============ */
.check-wrap{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 28px}
.check{
  display:flex;gap:14px;align-items:flex-start;
  padding:20px 22px;background:var(--surface);
  border:1px solid var(--line);border-radius:14px;
  transition:border-color .18s var(--ease),background .18s var(--ease);
}
.check:hover{border-color:var(--line-hover);background:var(--card)}
.check .tick{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary-dim);color:var(--primary);margin-top:3px;
}
.check strong{display:block;font-size:15px;font-weight:600;color:var(--text);line-height:1.6}
.check span{display:block;margin-top:6px;font-size:13.5px;line-height:1.8;color:var(--dim)}

/* ============ faq ============ */
.faq{display:grid;gap:12px;max-width:900px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;
  transition:border-color .18s var(--ease);
}
.faq-item.is-open{border-color:var(--line-hover)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;min-height:56px;padding:16px 22px;text-align:left;
  font-size:15px;font-weight:600;color:var(--text);line-height:1.6;
}
.faq-q .sign{
  flex:0 0 auto;position:relative;width:16px;height:16px;
  transition:transform .2s var(--ease);
}
.faq-q .sign::before,.faq-q .sign::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-q .sign::before{width:14px;height:2px}
.faq-q .sign::after{width:2px;height:14px;transition:opacity .2s var(--ease),transform .2s var(--ease)}
.faq-item.is-open .sign::after{opacity:0;transform:translate(-50%,-50%) scaleY(0)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .24s var(--ease);
}
.faq-a__inner{padding:0 22px 20px;font-size:14px;line-height:1.9;color:var(--body)}
.faq-a__inner p+p{margin-top:12px}

/* ============ cta ============ */
.cta-band{
  position:relative;overflow:hidden;
  border:1px solid rgba(255,255,255,.14);
  border-radius:20px;
  background:rgba(255,255,255,.06);
  backdrop-filter:blur(14px);
  box-shadow:0 18px 48px rgba(0,0,0,.4),inset 0 1px 0 rgba(255,255,255,.14);
  padding:40px;
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.9fr);
  gap:36px;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;inset:-40% 40% 40% -20%;
  background:radial-gradient(circle at 30% 40%,rgba(53,224,180,.18),transparent 65%);
  pointer-events:none;
}
.cta-band h2{position:relative;font-size:clamp(22px,2.2vw,28px);font-weight:700;color:var(--text);line-height:1.4}
.cta-band p{position:relative;margin-top:12px;font-size:14.5px;line-height:1.9;color:var(--body)}
.cta-form{position:relative;display:flex;gap:10px;flex-wrap:wrap}
.cta-form input{
  flex:1 1 200px;min-width:0;height:44px;padding:0 14px;
  background:rgba(8,13,18,.55);border:1px solid var(--line);border-radius:var(--radius-sm);
  color:var(--text);font-size:14px;outline:none;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.cta-form input::placeholder{color:var(--muted)}
.cta-form input:focus{border-color:var(--primary);box-shadow:0 0 0 2px rgba(53,224,180,.18)}
.cta-note{position:relative;margin-top:12px;font-size:11.5px;line-height:1.8;color:var(--muted)}
.cta-feedback{position:relative;margin-top:10px;font-size:12.5px;color:var(--primary);min-height:18px}

/* ============ back link ============ */
.back-row{display:flex;flex-wrap:wrap;gap:18px;align-items:center;margin-top:56px}
.back-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;color:var(--dim);
}
.back-link:hover{color:var(--primary)}
.back-link svg{transition:transform .18s var(--ease)}
.back-link:hover svg{transform:translateX(-3px)}

/* ============ footer ============ */
.site-footer{
  background:var(--surface);
  border-top:1px solid var(--line);
  padding:72px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr .8fr .9fr 1fr;
  gap:48px;
  padding-bottom:52px;
}
.footer-brand .logo{margin-bottom:18px}
.footer-brand p{font-size:13.5px;line-height:1.9;color:var(--dim);max-width:300px}
.footer-col h4{
  font-size:13px;font-weight:600;color:var(--text);
  letter-spacing:.04em;margin-bottom:18px;
}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:13.5px;color:var(--dim)}
.footer-col a:hover{color:var(--primary)}
.footer-contact li{font-size:13.5px;color:var(--dim);display:flex;gap:9px;align-items:flex-start;line-height:1.8}
.footer-contact svg{flex:0 0 auto;margin-top:4px;color:var(--primary)}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:12.5px;color:var(--muted);
}
.footer-bottom .legal{display:flex;flex-wrap:wrap;gap:18px}
.footer-bottom a{color:var(--muted)}
.footer-bottom a:hover{color:var(--primary)}

/* ============ responsive ============ */
@media (max-width:1279px){
  .nav-desktop{gap:16px}
  .nav-desktop a{font-size:13.5px}
  .search{width:180px}
}
@media (max-width:1099px){
  .nav-desktop{display:none}
  .menu-toggle{display:inline-flex}
  .search{display:none}
  .quick-link{display:none}
  .header-inner{justify-content:space-between}
  .why-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:900px){
  .section{padding:72px 0}
  .section--tight{padding:56px 0}
  .step,.step:nth-child(even){grid-template-columns:1fr;gap:22px;padding:26px}
  .step:nth-child(even) .step__figure{order:0}
  .cta-band{grid-template-columns:1fr;padding:32px;gap:24px}
  .check-wrap{grid-template-columns:1fr}
}
@media (max-width:767px){
  .header-cta{display:none}
  .page-banner__inner{padding:48px 0 44px}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .why-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:40px}
  .site-footer{padding-top:52px}
  .btn{width:100%}
  .header-right .btn{width:auto}
  .back-row{gap:12px}
}
@media (max-width:520px){
  body{font-size:15px}
  .step{padding:22px 18px}
  .why-card{padding:22px 18px}
  .cta-band{padding:26px 20px}
  .faq-q{padding:14px 16px;font-size:14.5px}
  .faq-a__inner{padding:0 16px 18px}
  .footer-bottom{justify-content:flex-start}
}

/* roulang page: category3 */
:root{
  --bg:#080D12;
  --bg-elev:#0E1720;
  --card:#131F2A;
  --brand:#35E0B4;
  --brand-soft:#7BF0D2;
  --accent:#FF8A3D;
  --muted-blue:#6F8BA8;
  --text:#E8F1F5;
  --text-body:#C3D2DB;
  --text-dim:#8A9BA8;
  --border:rgba(255,255,255,.08);
  --border-strong:rgba(255,255,255,.18);
  --border-hover:rgba(53,224,180,.45);
  --radius-lg:18px;
  --radius:16px;
  --radius-sm:12px;
  --radius-xs:10px;
  --shadow-card:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 14px 36px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(53,224,180,.5),0 6px 22px rgba(53,224,180,.25);
  --mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;
  --container:1200px;
  --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-body);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  font-size:15px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease);}
a:hover{color:var(--brand);}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
input{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700;letter-spacing:-.01em;line-height:1.3;}
p{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 clamp(16px,4vw,40px);}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(8,13,18,.88);
  border-bottom:1px solid var(--border);
  transition:background .25s var(--ease),box-shadow .25s var(--ease),backdrop-filter .25s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(8,13,18,.72);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  box-shadow:0 8px 24px rgba(0,0,0,.28);
}
.header-inner{display:flex;align-items:center;gap:20px;height:64px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{width:34px;height:34px;flex:none;transition:transform .25s var(--ease);}
.logo:hover .logo-mark{transform:rotate(-4deg) scale(1.04);}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-text strong{font-size:15px;font-weight:700;color:var(--text);letter-spacing:.01em;}
.logo-text em{font-size:11px;font-style:normal;font-weight:500;color:var(--text-dim);letter-spacing:.14em;}
.nav-desktop{display:flex;align-items:center;gap:22px;flex:1;margin-left:6px;}
.nav-desktop a{
  position:relative;font-size:14px;color:var(--text-dim);padding:6px 0;white-space:nowrap;
  transition:color .18s var(--ease);
}
.nav-desktop a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease);
}
.nav-desktop a:hover{color:var(--text);}
.nav-desktop a:hover::after,.nav-desktop a.is-active::after{transform:scaleX(1);}
.nav-desktop a.is-active{color:var(--brand);font-weight:600;}
.header-right{display:flex;align-items:center;gap:14px;margin-left:auto;}
.search{
  display:flex;align-items:center;gap:8px;width:220px;height:36px;padding:0 10px;
  border:1px solid var(--border);border-radius:var(--radius-xs);
  background:rgba(255,255,255,.03);color:var(--text-dim);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease);
}
.search:focus-within{
  border-color:var(--brand);
  box-shadow:0 0 0 2px rgba(53,224,180,.18);
  background:rgba(53,224,180,.05);
}
.search input{
  flex:1;min-width:0;background:transparent;border:0;outline:none;color:var(--text);
  font-size:13px;
}
.search input::placeholder{color:var(--muted-blue);}
.search kbd{
  font-family:var(--mono);font-size:10px;color:var(--text-dim);
  border:1px solid var(--border);border-radius:5px;padding:1px 5px;background:rgba(255,255,255,.04);
}
.quick-link{font-size:13px;color:var(--text-dim);white-space:nowrap;}
.quick-link:hover{color:var(--brand);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--radius-xs);
  font-size:14px;font-weight:600;border:1px solid transparent;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),filter .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,#35E0B4,#1FB894);
  color:#04211A;box-shadow:var(--glow);
}
.btn-primary:hover{
  filter:brightness(1.08);transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(53,224,180,.6),0 10px 26px rgba(53,224,180,.32);
  color:#04211A;
}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;border-color:var(--border-strong);color:var(--text);
}
.btn-ghost:hover{border-color:var(--border-hover);color:var(--brand);transform:translateY(-1px);}
.header-cta{height:38px;padding:0 18px;font-size:13px;}
.menu-toggle{
  display:none;width:38px;height:38px;align-items:center;justify-content:center;
  background:rgba(255,255,255,.04);border:1px solid var(--border);border-radius:var(--radius-xs);
  color:var(--text);
}
.menu-toggle:hover{border-color:var(--border-hover);color:var(--brand);}
.mobile-drawer{
  display:none;border-top:1px solid var(--border);background:rgba(9,15,21,.98);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  padding:16px 0 22px;
}
.mobile-drawer.is-open{display:block;}
.mobile-search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 12px;margin-bottom:14px;
  border:1px solid var(--border);border-radius:var(--radius-xs);background:rgba(255,255,255,.03);color:var(--text-dim);
}
.mobile-search input{flex:1;background:transparent;border:0;outline:none;color:var(--text);font-size:14px;}
.mobile-search input::placeholder{color:var(--muted-blue);}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  padding:11px 2px;font-size:14px;color:var(--text-body);border-bottom:1px solid var(--border);
}
.drawer-nav a.is-active{color:var(--brand);font-weight:600;}
.drawer-nav a:last-child{border-bottom:0;}
.drawer-cta{width:100%;margin-top:16px;}

/* ---------- 横幅 ---------- */
.banner{position:relative;overflow:hidden;border-bottom:1px solid var(--border);}
.banner-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.banner-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(8,13,18,.96) 0%,rgba(8,13,18,.82) 46%,rgba(8,13,18,.58) 100%);
}
.banner-inner{
  position:relative;z-index:2;min-height:272px;
  padding:52px 0 46px;
  display:flex;flex-direction:column;justify-content:flex-end;gap:14px;
}
.crumbs{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--text-dim);}
.crumbs a{color:var(--text-dim);}
.crumbs a:hover{color:var(--brand);}
.crumbs span{color:var(--muted-blue);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mono);font-size:12px;letter-spacing:.16em;color:var(--brand);
  text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brand);opacity:.7;}
.banner-title{
  font-size:clamp(26px,3.1vw,40px);line-height:1.28;max-width:760px;
}
.banner-sub{font-size:15px;color:var(--text-body);max-width:640px;line-height:1.85;}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:4px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;padding:4px 10px;border-radius:6px;
  background:rgba(53,224,180,.12);color:var(--brand-soft);border:1px solid rgba(53,224,180,.22);
}
.tag-accent{background:rgba(255,138,61,.12);color:#FFB07A;border-color:rgba(255,138,61,.25);}

/* ---------- 通用板块 ---------- */
.section{padding:clamp(56px,7vw,96px) 0;}
.section--tight{padding:clamp(44px,5vw,72px) 0;}
.section--alt{background:var(--bg-elev);border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-title{font-size:clamp(22px,2.2vw,30px);line-height:1.35;}
.section-title .accent{color:var(--brand);}
.section-desc{margin-top:14px;font-size:15px;color:var(--text-dim);line-height:1.9;}
.kicker{
  display:block;font-family:var(--mono);font-size:12px;letter-spacing:.18em;
  color:var(--muted-blue);margin-bottom:12px;text-transform:uppercase;
}

/* ---------- 对照清单 ---------- */
.checklist-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.check-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:26px 26px 18px;box-shadow:var(--shadow-card);
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.check-card:hover{transform:translateY(-2px);border-color:var(--border-hover);box-shadow:var(--shadow-hover);}
.check-card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:8px;}
.check-card-head h3{font-size:18px;}
.check-card-note{font-size:13px;color:var(--text-dim);margin-bottom:14px;}
.dot{width:8px;height:8px;border-radius:50%;flex:none;}
.dot-ok{background:var(--brand);box-shadow:0 0 0 4px rgba(53,224,180,.14);}
.dot-no{background:var(--accent);box-shadow:0 0 0 4px rgba(255,138,61,.14);}
.check-list{display:flex;flex-direction:column;}
.check-item{
  display:flex;gap:12px;align-items:flex-start;
  padding:13px 0;border-bottom:1px dashed var(--border);
}
.check-item:last-child{border-bottom:0;}
.check-icon{
  flex:none;width:20px;height:20px;margin-top:3px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(53,224,180,.4);color:var(--brand);background:rgba(53,224,180,.08);
}
.check-icon.no{border-color:rgba(255,138,61,.4);color:var(--accent);background:rgba(255,138,61,.08);}
.check-icon svg{width:11px;height:11px;}
.check-text strong{display:block;font-size:14.5px;font-weight:600;color:var(--text);line-height:1.6;}
.check-text span{display:block;font-size:13px;color:var(--text-dim);line-height:1.75;margin-top:2px;}

/* ---------- 数据条 ---------- */
.fact-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;margin-top:36px;}
.fact-card{
  padding:22px;border:1px solid var(--border);border-radius:var(--radius-sm);
  background:linear-gradient(180deg,rgba(255,255,255,.035),rgba(255,255,255,.012));
  transition:border-color .18s var(--ease),transform .18s var(--ease);
}
.fact-card:hover{border-color:var(--border-hover);transform:translateY(-2px);}
.fact-num{font-family:var(--mono);font-size:26px;font-weight:700;color:var(--brand);line-height:1.2;}
.fact-num small{font-size:13px;font-weight:600;margin-left:3px;color:var(--brand-soft);}
.fact-label{margin-top:8px;font-size:13px;color:var(--text-dim);line-height:1.7;}

/* ---------- 图文分栏 ---------- */
.split{display:grid;grid-template-columns:1.02fr 1fr;gap:44px;align-items:center;}
.split-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow-card);}
.split-media img{width:100%;height:100%;aspect-ratio:16/11;object-fit:cover;transition:transform .4s var(--ease);}
.split-media:hover img{transform:scale(1.03);}
.split-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(8,13,18,0) 40%,rgba(8,13,18,.72) 100%);
}
.media-caption{
  position:absolute;left:20px;right:20px;bottom:16px;z-index:2;
  font-size:12.5px;color:var(--text-body);line-height:1.7;
}
.feature-list{display:flex;flex-direction:column;gap:18px;margin-top:26px;}
.feature-item{display:flex;gap:14px;align-items:flex-start;}
.feature-idx{
  flex:none;width:32px;height:32px;border-radius:9px;display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:12px;font-weight:600;color:var(--brand);
  border:1px solid rgba(53,224,180,.28);background:rgba(53,224,180,.08);
}
.feature-item h4{font-size:15px;margin-bottom:4px;}
.feature-item p{font-size:13.5px;color:var(--text-dim);line-height:1.8;}

/* ---------- 处理顺序 ---------- */
.order-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border-top:1px solid var(--border);}
.order-item{
  position:relative;padding:28px 24px 26px 0;
  border-right:1px solid var(--border);
  transition:background .2s var(--ease);
}
.order-item:last-child{border-right:0;}
.order-item:hover{background:rgba(255,255,255,.02);}
.order-item::before{
  content:"";position:absolute;left:0;top:0;width:0;height:2px;background:var(--accent);
  transition:width .28s var(--ease);
}
.order-item:hover::before{width:44px;}
.order-num{
  font-family:var(--mono);font-size:13px;color:var(--accent);letter-spacing:.1em;margin-bottom:10px;
  padding-left:24px;
}
.order-item:nth-child(1){padding-left:0;}
.order-item:not(:first-child){padding-left:24px;}
.order-item h3{font-size:15.5px;margin-bottom:8px;}
.order-item p{font-size:13.5px;color:var(--text-dim);line-height:1.8;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:840px;margin:0 auto;}
.faq-item{
  border:1px solid var(--border);border-radius:var(--radius-sm);
  background:var(--card);margin-bottom:12px;overflow:hidden;
  transition:border-color .18s var(--ease),background .18s var(--ease);
}
.faq-item:hover{border-color:rgba(53,224,180,.32);}
.faq-item.is-open{border-color:var(--border-hover);background:#152230;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:17px 22px;min-height:56px;background:transparent;border:0;text-align:left;
  font-size:15px;font-weight:600;color:var(--text);line-height:1.6;
}
.faq-q:hover{color:var(--brand-soft);}
.faq-sign{
  flex:none;width:22px;height:22px;position:relative;border-radius:50%;
  border:1px solid var(--border-strong);transition:transform .24s var(--ease),border-color .2s var(--ease);
}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;left:50%;top:50%;background:currentColor;
  transform:translate(-50%,-50%);
}
.faq-sign::before{width:10px;height:1.5px;}
.faq-sign::after{width:1.5px;height:10px;transition:opacity .2s var(--ease);}
.faq-item.is-open .faq-sign{transform:rotate(180deg);border-color:var(--brand);color:var(--brand);}
.faq-item.is-open .faq-sign::after{opacity:0;}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .24s var(--ease);}
.faq-item.is-open .faq-a{grid-template-rows:1fr;}
.faq-a-inner{overflow:hidden;}
.faq-a p{
  padding:0 22px 20px;font-size:14px;line-height:1.95;color:var(--text-body);
}

/* ---------- CTA ---------- */
.cta-band{
  border:1px solid var(--border);border-radius:var(--radius-lg);
  background:rgba(255,255,255,.06);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.14),var(--shadow-card);
  padding:clamp(26px,3.4vw,40px);
  display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-90px;top:-120px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(53,224,180,.22),transparent 68%);
  pointer-events:none;
}
.cta-copy h2{font-size:clamp(20px,2vw,26px);margin-bottom:10px;position:relative;}
.cta-copy p{font-size:14px;color:var(--text-dim);line-height:1.85;max-width:400px;}
.cta-form{position:relative;}
.field-row{display:flex;gap:12px;}
.field{flex:1;min-width:0;}
.field input{
  width:100%;height:44px;padding:0 14px;border-radius:var(--radius-xs);
  background:rgba(8,13,18,.55);border:1px solid var(--border-strong);color:var(--text);
  font-size:14px;outline:none;transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.field input::placeholder{color:var(--muted-blue);}
.field input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(53,224,180,.16);}
.field input.is-error{border-color:#FF6B6B;box-shadow:0 0 0 3px rgba(255,107,107,.14);}
.cta-form .btn{white-space:nowrap;height:44px;}
.form-note{margin-top:12px;font-size:11.5px;color:var(--text-dim);line-height:1.75;}
.form-msg{margin-top:10px;font-size:12.5px;display:none;}
.form-msg.show{display:block;}
.form-msg.ok{color:var(--brand);}
.form-msg.err{color:#FF8F8F;}

.backlink-row{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:34px;}
.backlink{
  display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:var(--text-dim);
  border-bottom:1px solid transparent;padding-bottom:2px;
}
.backlink:hover{color:var(--brand);border-bottom-color:rgba(53,224,180,.5);}
.backlink svg{width:14px;height:14px;}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--border);background:var(--bg-elev);
  padding:clamp(44px,5vw,72px) 0 0;
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:48px;
  padding-bottom:44px;
}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand p{font-size:13.5px;color:var(--text-dim);line-height:1.9;max-width:300px;}
.footer-col h4{font-size:13px;color:var(--text);letter-spacing:.06em;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col li{font-size:13.5px;color:var(--text-dim);line-height:1.7;}
.footer-col a{color:var(--text-dim);}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  border-top:1px solid var(--border);
  padding:20px 0 26px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:12.5px;color:var(--muted-blue);
}
.footer-bottom .mono{font-size:12px;letter-spacing:.02em;}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .nav-desktop{gap:16px;}
  .search{width:180px;}
}
@media (max-width:1023px){
  .nav-desktop,.search,.quick-link{display:none;}
  .menu-toggle{display:inline-flex;}
  .header-inner{height:58px;}
  .header-cta{display:none;}
  .split{grid-template-columns:1fr;gap:30px;}
  .order-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .order-item:nth-child(2){border-right:0;}
  .order-item:nth-child(1),.order-item:nth-child(2){border-bottom:1px solid var(--border);}
  .fact-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-band{grid-template-columns:1fr;gap:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:767px){
  body{font-size:14.5px;}
  .banner-inner{min-height:230px;padding:38px 0 34px;}
  .checklist-grid{grid-template-columns:1fr;gap:18px;}
  .check-card{padding:22px 20px 14px;}
  .fact-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;}
  .fact-card{padding:18px;}
  .order-grid{grid-template-columns:1fr;}
  .order-item{border-right:0;border-bottom:1px solid var(--border);padding:22px 0 22px 0 !important;}
  .order-item:last-child{border-bottom:0;}
  .field-row{flex-direction:column;}
  .cta-form .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .section-head{margin-bottom:28px;}
}
@media (max-width:519px){
  .logo-text strong{font-size:14px;}
  .logo-mark{width:30px;height:30px;}
  .banner-title{font-size:24px;}
  .banner-sub{font-size:14px;}
  .fact-num{font-size:22px;}
  .check-text strong{font-size:14px;}
  .faq-q{font-size:14px;padding:15px 16px;}
  .faq-a p{padding:0 16px 18px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category4 */
:root{
  --bg:#080D12;
  --surface:#0E1720;
  --card:#131F2A;
  --card-2:#16232F;
  --primary:#35E0B4;
  --primary-soft:#7BF0D2;
  --accent:#FF8A3D;
  --muted:#6F8BA8;
  --text:#E8F1F5;
  --body:#C3D2DB;
  --dim:#8A9BA8;
  --border:rgba(255,255,255,.08);
  --border-soft:rgba(255,255,255,.05);
  --border-hover:rgba(53,224,180,.45);
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 14px 36px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(53,224,180,.5), 0 6px 22px rgba(53,224,180,.25);
  --font-sans:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono",SFMono-Regular,Menlo,Consolas,monospace;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--body);
  font-family:var(--font-sans);
  font-size:15px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
h1,h2,h3,h4{color:var(--text);letter-spacing:-.01em;margin:0}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(53,224,180,.28);color:#fff}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 clamp(16px,4vw,40px);
}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(8,13,18,.78);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
  transition:box-shadow .25s var(--ease),background .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(0,0,0,.45)}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:64px;
}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{width:34px;height:34px;flex-shrink:0}
.logo-text{display:flex;flex-direction:column;line-height:1.2}
.logo-text strong{font-size:14px;font-weight:700;color:var(--text);letter-spacing:.01em}
.logo-text em{font-size:11px;font-style:normal;font-weight:500;color:var(--muted);letter-spacing:.16em}

.nav-desktop{
  display:flex;
  align-items:center;
  gap:22px;
  flex:1;
  min-width:0;
}
.nav-desktop a{
  position:relative;
  padding:6px 0;
  font-size:13.5px;
  color:var(--dim);
  white-space:nowrap;
  transition:color .18s var(--ease);
}
.nav-desktop a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .2s var(--ease);
}
.nav-desktop a:hover{color:var(--text)}
.nav-desktop a:hover::after{transform:scaleX(.5)}
.nav-desktop a.is-active{color:var(--text);font-weight:600}
.nav-desktop a.is-active::after{transform:scaleX(1)}

.header-right{display:flex;align-items:center;gap:14px;flex-shrink:0}
.search{
  display:flex;
  align-items:center;
  gap:8px;
  width:220px;
  height:36px;
  padding:0 10px;
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  background:rgba(255,255,255,.03);
  color:var(--muted);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search input{
  flex:1;
  min-width:0;
  border:0;
  background:transparent;
  outline:none;
  color:var(--text);
  font-size:13px;
}
.search input::placeholder{color:var(--muted)}
.search:focus-within{border-color:var(--primary);box-shadow:0 0 0 2px rgba(53,224,180,.16)}
.search kbd{
  font-family:var(--font-mono);
  font-size:10px;
  line-height:1;
  padding:3px 5px;
  border:1px solid var(--border);
  border-radius:4px;
  color:var(--muted);
}
.quick-link{font-size:13px;color:var(--dim);transition:color .18s var(--ease)}
.quick-link:hover{color:var(--primary)}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 24px;
  border-radius:var(--radius-sm);
  font-size:14px;
  font-weight:600;
  letter-spacing:.01em;
  white-space:nowrap;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.btn-primary{
  color:#04120E;
  background:linear-gradient(135deg,#35E0B4,#1FB894);
  box-shadow:var(--glow);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(53,224,180,.6),0 10px 26px rgba(53,224,180,.3)}
.btn-primary:active{transform:translateY(0);filter:brightness(.98)}
.btn-ghost{
  color:var(--text);
  border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.02);
}
.btn-ghost:hover{border-color:var(--border-hover);color:var(--primary-soft);transform:translateY(-1px)}
.header-cta{height:38px;padding:0 18px;font-size:13px}

.menu-toggle{
  display:none;
  width:38px;height:38px;
  place-items:center;
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  color:var(--text);
  background:rgba(255,255,255,.03);
}
.menu-toggle:hover{border-color:var(--border-hover)}

.mobile-drawer{
  display:none;
  border-top:1px solid var(--border);
  background:var(--surface);
  padding:14px 0 20px;
}
.mobile-drawer.open{display:block}
.mobile-search{
  display:flex;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 12px;
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  background:rgba(255,255,255,.03);
  color:var(--muted);
  margin-bottom:10px;
}
.mobile-search input{
  flex:1;min-width:0;border:0;background:transparent;outline:none;
  color:var(--text);font-size:13.5px;
}
.mobile-search input::placeholder{color:var(--muted)}
.mobile-nav a{
  display:block;
  padding:11px 2px;
  font-size:14px;
  color:var(--body);
  border-bottom:1px solid var(--border-soft);
}
.mobile-nav a:hover{color:var(--primary)}
.mobile-nav a.is-active{color:var(--primary);font-weight:600}
.mobile-cta{width:100%;margin-top:16px}

/* ---------- 首屏 ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  display:flex;
  align-items:flex-end;
  padding:76px 0 58px;
  border-bottom:1px solid var(--border);
}
.hero-bg{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(.92);
}
.hero-veil{
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(8,13,18,.55) 0%,rgba(8,13,18,.86) 55%,rgba(8,13,18,.96) 100%);
}
.hero-body{position:relative;z-index:2;width:100%}
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:12px;
  color:var(--muted);
  margin-bottom:18px;
}
.crumbs a{color:var(--dim);transition:color .18s var(--ease)}
.crumbs a:hover{color:var(--primary)}
.crumbs span{color:var(--text);opacity:.9}
.crumbs i{font-style:normal;color:rgba(255,255,255,.22)}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.2em;
  color:var(--primary);
  text-transform:uppercase;
}
.eyebrow::before{
  content:"";
  width:22px;height:1px;
  background:var(--primary);
  opacity:.7;
}
.page-hero h1{
  font-size:clamp(28px,3.4vw,44px);
  line-height:1.25;
  font-weight:700;
  margin:14px 0 16px;
  max-width:860px;
}
.hero-sub{
  max-width:660px;
  font-size:16px;
  line-height:1.85;
  color:var(--body);
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:28px;
}
.hero-chips{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:26px;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-size:12.5px;
  color:var(--body);
  padding:6px 12px;
  border-radius:6px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.04);
}
.chip::before{
  content:"";
  width:5px;height:5px;
  border-radius:50%;
  background:var(--primary);
}

/* ---------- 板块 ---------- */
.section{padding:96px 0}
.section.band{
  background:var(--surface);
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
}
.section-head{max-width:720px;margin-bottom:42px}
.section-head h2{
  font-size:clamp(22px,2.2vw,30px);
  line-height:1.35;
  font-weight:700;
  margin:12px 0 14px;
}
.section-head p{font-size:15px;color:var(--dim);line-height:1.85}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head.center .eyebrow::before{display:none}

/* ---------- 数据条 ---------- */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
  margin-top:34px;
}
.stat{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:14px;
  padding:20px 22px;
  transition:border-color .18s var(--ease),transform .18s var(--ease);
}
.stat:hover{border-color:var(--border-hover);transform:translateY(-2px)}
.stat b{
  display:block;
  font-family:var(--font-mono);
  font-size:26px;
  line-height:1.3;
  font-weight:600;
  color:var(--primary);
  letter-spacing:-.02em;
}
.stat b em{font-style:normal;font-size:13px;color:var(--muted);margin-left:4px}
.stat span{display:block;font-size:13px;color:var(--dim);margin-top:2px}
.stat.is-accent b{color:var(--accent)}

/* ---------- 时间轴 ---------- */
.timeline{
  position:relative;
  margin-top:8px;
  padding-top:6px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:23px;
  top:14px;
  bottom:26px;
  width:1px;
  background:linear-gradient(180deg,rgba(53,224,180,.85),rgba(53,224,180,.12) 78%,rgba(53,224,180,0));
}
.tl-item{
  position:relative;
  display:grid;
  grid-template-columns:64px 1fr;
  gap:26px;
  padding-bottom:26px;
}
.tl-item:last-child{padding-bottom:0}
.tl-num{
  width:48px;height:48px;
  display:grid;
  place-items:center;
  border-radius:12px;
  font-family:var(--font-mono);
  font-size:15px;
  font-weight:600;
  color:var(--primary);
  background:rgba(53,224,180,.09);
  border:1px solid rgba(53,224,180,.32);
  box-shadow:0 0 0 6px rgba(8,13,18,.9);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.tl-item:hover .tl-num{
  background:rgba(53,224,180,.18);
  border-color:var(--primary);
  color:var(--primary-soft);
}
.tl-card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:22px 24px;
  box-shadow:var(--shadow);
  transition:border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.tl-card:hover{
  border-color:var(--border-hover);
  transform:translateY(-2px);
  box-shadow:var(--shadow-hover);
}
.tl-card h3{
  font-size:17px;
  font-weight:600;
  margin-bottom:9px;
  line-height:1.6;
}
.tl-card p{font-size:14.5px;color:var(--dim);line-height:1.9}
.tl-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  margin-top:16px;
}
.tag{
  display:inline-flex;
  align-items:center;
  font-size:12px;
  line-height:1.6;
  padding:3px 9px;
  border-radius:6px;
  color:var(--primary);
  background:rgba(53,224,180,.12);
  border:1px solid rgba(53,224,180,.18);
}
.tag-accent{
  color:var(--accent);
  background:rgba(255,138,61,.12);
  border-color:rgba(255,138,61,.22);
}
.time-note{
  font-family:var(--font-mono);
  font-size:12px;
  color:var(--muted);
  margin-left:auto;
}

/* ---------- 图文对照 ---------- */
.split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:clamp(28px,4vw,56px);
  align-items:center;
}
.split-figure{
  position:relative;
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--border);
  box-shadow:var(--shadow);
}
.split-figure img{
  width:100%;
  height:100%;
  min-height:320px;
  object-fit:cover;
  transition:transform .5s var(--ease);
}
.split-figure:hover img{transform:scale(1.03)}
.split-figure figcaption{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:18px 20px 16px;
  font-size:12.5px;
  color:var(--body);
  background:linear-gradient(180deg,rgba(8,13,18,0) 0%,rgba(8,13,18,.9) 100%);
}
.point-list{margin-top:26px}
.point{
  display:flex;
  gap:16px;
  padding:18px 0;
  border-bottom:1px solid var(--border-soft);
}
.point:last-child{border-bottom:0;padding-bottom:0}
.point-idx{
  flex-shrink:0;
  width:32px;height:32px;
  display:grid;place-items:center;
  border-radius:8px;
  font-family:var(--font-mono);
  font-size:12px;
  color:var(--accent);
  background:rgba(255,138,61,.1);
  border:1px solid rgba(255,138,61,.24);
}
.point h3{font-size:15.5px;font-weight:600;margin-bottom:6px;line-height:1.6}
.point p{font-size:14px;color:var(--dim);line-height:1.9}

/* ---------- 核对清单 ---------- */
.check-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:0 40px;
  margin-top:8px;
}
.check-item{
  display:flex;
  gap:12px;
  align-items:flex-start;
  padding:16px 0;
  border-bottom:1px solid var(--border-soft);
}
.check-icon{
  flex-shrink:0;
  width:20px;height:20px;
  margin-top:4px;
  color:var(--primary);
}
.check-item strong{
  display:block;
  font-size:14.5px;
  font-weight:600;
  color:var(--text);
  line-height:1.7;
}
.check-item span{display:block;font-size:13px;color:var(--dim);line-height:1.8}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px}
.faq-item{
  border:1px solid var(--border);
  border-radius:14px;
  background:var(--card);
  margin-bottom:12px;
  padding:0 22px;
  transition:border-color .18s var(--ease),background .18s var(--ease);
}
.faq-item:hover{border-color:rgba(53,224,180,.28)}
.faq-item[open]{border-color:var(--border-hover);background:var(--card-2)}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:18px 0;
  font-size:15px;
  font-weight:600;
  color:var(--text);
  cursor:pointer;
  list-style:none;
  line-height:1.7;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";
  flex-shrink:0;
  font-family:var(--font-mono);
  font-size:18px;
  line-height:1;
  color:var(--primary);
  transition:transform .2s var(--ease);
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-body{
  padding:0 0 20px;
  font-size:14px;
  color:var(--dim);
  line-height:1.95;
  border-top:1px solid var(--border-soft);
  padding-top:14px;
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:20px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.055);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.14),var(--shadow);
  padding:clamp(26px,4vw,44px);
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:clamp(24px,4vw,48px);
  align-items:center;
}
.cta-band::after{
  content:"";
  position:absolute;
  width:420px;height:420px;
  right:-160px;top:-200px;
  background:radial-gradient(circle,rgba(53,224,180,.16),transparent 68%);
  pointer-events:none;
}
.cta-band h2{
  font-size:clamp(20px,2.1vw,26px);
  line-height:1.4;
  font-weight:700;
  margin-bottom:10px;
}
.cta-band p{font-size:14px;color:var(--dim);line-height:1.9}
.cta-form{position:relative;z-index:2}
.field-label{
  display:block;
  font-size:13px;
  color:var(--body);
  margin-bottom:8px;
}
.field-row{display:flex;gap:10px}
.field-row input{
  flex:1;
  min-width:0;
  height:44px;
  padding:0 14px;
  border-radius:var(--radius-sm);
  border:1px solid var(--border);
  background:rgba(8,13,18,.5);
  color:var(--text);
  font-size:14px;
  outline:none;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.field-row input::placeholder{color:var(--muted)}
.field-row input:focus{border-color:var(--primary);box-shadow:0 0 0 2px rgba(53,224,180,.16)}
.field-row input.is-error{border-color:#FF6B6B;box-shadow:0 0 0 2px rgba(255,107,107,.14)}
.field-row input.is-ok{border-color:var(--primary)}
.field-row .btn{flex-shrink:0}
.form-hint{
  font-size:11.5px;
  color:var(--muted);
  margin-top:10px;
  line-height:1.8;
}
.form-hint.is-ok{color:var(--primary)}
.form-hint.is-error{color:#FF6B6B}

/* ---------- 返回链接 ---------- */
.backrow{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:20px;
  padding:34px 0 0;
}
.back-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--dim);
  transition:color .18s var(--ease),gap .18s var(--ease);
}
.back-link:hover{color:var(--primary);gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--border);
  background:var(--surface);
  padding:64px 0 0;
  margin-top:96px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:48px;
  padding-bottom:48px;
}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{
  font-size:13.5px;
  color:var(--dim);
  line-height:1.9;
  max-width:300px;
}
.footer-badge{
  display:inline-flex;
  align-items:center;
  margin-top:16px;
  font-size:12px;
  padding:4px 10px;
  border-radius:6px;
  color:var(--primary);
  background:rgba(53,224,180,.1);
  border:1px solid rgba(53,224,180,.2);
}
.footer-col h4{
  font-size:13px;
  font-weight:600;
  color:var(--text);
  letter-spacing:.06em;
  margin-bottom:16px;
}
.footer-col a,
.footer-col span{
  display:block;
  font-size:13.5px;
  color:var(--dim);
  padding:6px 0;
  transition:color .18s var(--ease);
}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:20px 0 26px;
  border-top:1px solid var(--border);
  font-size:12.5px;
  color:var(--muted);
}
.footer-bottom .mono{font-family:var(--font-mono);letter-spacing:.02em}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .nav-desktop{gap:16px}
  .search{width:180px}
  .quick-link{display:none}
}
@media (max-width:1024px){
  .nav-desktop,.search,.header-cta{display:none}
  .menu-toggle{display:grid}
  .header-inner{height:56px;gap:12px}
  .header-right{margin-left:auto}
  .section{padding:72px 0}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr}
  .split-figure img{min-height:240px}
  .check-grid{grid-template-columns:1fr;gap:0}
  .cta-band{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .site-footer{margin-top:72px}
}
@media (max-width:768px){
  body{font-size:14.5px}
  .page-hero{padding:56px 0 44px}
  .hero-sub{font-size:15px}
  .hero-actions{gap:10px}
  .hero-actions .btn{width:100%}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .timeline::before{left:20px}
  .tl-item{grid-template-columns:44px 1fr;gap:16px;padding-bottom:20px}
  .tl-num{width:42px;height:42px;font-size:14px;border-radius:10px}
  .tl-card{padding:18px 18px}
  .timeline-dot{}
  .time-note{margin-left:0;width:100%}
  .field-row{flex-direction:column}
  .field-row .btn{width:100%}
  .backrow{padding-top:26px}
}
@media (max-width:520px){
  .stat-strip{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .hero-chips{gap:8px}
  .chip{font-size:12px}
  .cta-band{padding:24px 18px;border-radius:16px}
}

/* roulang page: category5 */
:root{
  --bg:#080D12;
  --surface:#0E1720;
  --card:#131F2A;
  --card-2:#16232F;
  --primary:#35E0B4;
  --primary-light:#7BF0D2;
  --primary-deep:#1FB894;
  --accent:#FF8A3D;
  --muted-blue:#6F8BA8;
  --text:#E8F1F5;
  --text-body:#C3D2DB;
  --text-dim:#8A9BA8;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --line-hover:rgba(53,224,180,.45);
  --err:#FF6B6B;
  --r-card:16px;
  --r-sm:10px;
  --r-badge:6px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 14px 36px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(53,224,180,.5), 0 6px 22px rgba(53,224,180,.25);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text-body);
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;object-fit:cover}
a{color:var(--primary);text-decoration:none;transition:color .18s var(--ease),opacity .18s var(--ease)}
a:hover{color:var(--primary-light)}
h1,h2,h3,h4{margin:0;color:var(--text);letter-spacing:-.01em;line-height:1.35;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
.mono{font-family:ui-monospace,"JetBrains Mono",SFMono-Regular,Menlo,Consolas,monospace;font-variant-numeric:tabular-nums}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 clamp(16px,4vw,40px)}
.section{padding:96px 0}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--primary);font-weight:600;margin-bottom:14px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--primary);display:block}
.section-head h2{font-size:clamp(22px,2.2vw,30px);margin-bottom:14px}
.section-head p{color:var(--text-dim);font-size:15px;line-height:1.9}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--r-sm);
  font-size:14px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;transition:all .18s var(--ease);white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-deep) 100%);
  color:#04211A;box-shadow:var(--glow);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);color:#04211A;box-shadow:0 0 0 1px rgba(53,224,180,.65),0 10px 30px rgba(53,224,180,.32)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:transparent;border-color:rgba(255,255,255,.18);color:var(--text);
}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary-light)}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--primary);outline-offset:3px;
}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:90;background:rgba(8,13,18,.88);
  border-bottom:1px solid var(--line);transition:background .2s var(--ease),box-shadow .2s var(--ease);
}
.site-header.scrolled{background:rgba(8,13,18,.72);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);box-shadow:0 8px 24px rgba(0,0,0,.35)}
.header-inner{display:flex;align-items:center;gap:24px;height:64px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{width:34px;height:34px;flex-shrink:0}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text strong{font-size:15px;font-weight:700;color:var(--text);letter-spacing:.01em}
.logo-text em{font-style:normal;font-size:11px;font-weight:500;color:var(--muted-blue);letter-spacing:.08em}
.nav-desktop{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-desktop a{
  position:relative;padding:8px 12px;font-size:14px;color:var(--text-dim);
  border-radius:8px;transition:color .18s var(--ease);
}
.nav-desktop a:hover{color:var(--text)}
.nav-desktop a.is-active{color:var(--text);font-weight:600}
.nav-desktop a.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-2px;height:2px;
  background:var(--primary);border-radius:2px;
}
.header-right{display:flex;align-items:center;gap:12px;margin-left:auto}
.search{
  display:flex;align-items:center;gap:8px;width:220px;height:36px;padding:0 10px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:var(--r-sm);
  color:var(--text-dim);transition:all .18s var(--ease);
}
.search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(53,224,180,.14);color:var(--primary)}
.search input{
  flex:1;min-width:0;border:0;background:transparent;color:var(--text);
  font-size:13px;height:100%;outline:none;
}
.search input::placeholder{color:var(--muted-blue)}
.search kbd{
  font-family:ui-monospace,Menlo,Consolas,monospace;font-size:11px;color:var(--muted-blue);
  border:1px solid var(--line);border-radius:5px;padding:1px 5px;background:rgba(255,255,255,.05);
}
.quick-link{font-size:13px;color:var(--text-dim);white-space:nowrap}
.quick-link:hover{color:var(--primary)}
.header-cta{height:36px;padding:0 16px;font-size:13px}
.menu-toggle{
  display:none;align-items:center;justify-content:center;width:36px;height:36px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:var(--r-sm);
  color:var(--text);cursor:pointer;
}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:var(--surface);padding:18px 0 22px}
.mobile-drawer.open{display:block}
.mobile-search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 12px;margin-bottom:14px;
  border:1px solid var(--line);border-radius:var(--r-sm);color:var(--text-dim);background:rgba(255,255,255,.03);
}
.mobile-search input{flex:1;border:0;background:transparent;outline:none;color:var(--text);font-size:14px}
.mobile-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:16px}
.mobile-nav a{padding:11px 4px;font-size:15px;color:var(--text-dim);border-bottom:1px solid var(--line)}
.mobile-nav a.is-active{color:var(--primary);font-weight:600}
.mobile-drawer .btn{width:100%}

/* ---------- page banner ---------- */
.page-banner{
  position:relative;overflow:hidden;border-bottom:1px solid var(--line);
  min-height:280px;display:flex;align-items:flex-end;
  padding:78px 0 40px;
}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  transform:scale(1.02);
}
.page-banner::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(8,13,18,.94) 0%,rgba(8,13,18,.78) 45%,rgba(8,13,18,.55) 100%);
}
.page-banner .container{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;color:var(--text-dim);margin-bottom:18px}
.crumb a{color:var(--text-dim)}
.crumb a:hover{color:var(--primary)}
.crumb span.sep{color:rgba(255,255,255,.22)}
.crumb .current{color:var(--text-body)}
.page-banner h1{font-size:clamp(26px,3.2vw,40px);line-height:1.28;margin-bottom:16px;max-width:18em}
.page-banner .banner-sub{max-width:640px;color:var(--text-body);font-size:15px;line-height:1.9;margin-bottom:26px}
.banner-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- self-check block ---------- */
.check-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:56px;align-items:center}
.check-media{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.check-media img{width:100%;height:100%;aspect-ratio:4/3;transition:transform .4s var(--ease)}
.check-media:hover img{transform:scale(1.03)}
.check-media .media-tag{
  position:absolute;left:16px;bottom:16px;padding:5px 10px;border-radius:var(--r-badge);
  font-size:12px;color:var(--primary);background:rgba(53,224,180,.14);
  border:1px solid rgba(53,224,180,.28);backdrop-filter:blur(6px);
}
.check-list{display:flex;flex-direction:column;gap:0;margin-top:8px}
.check-item{
  display:flex;gap:16px;padding:20px 0;border-bottom:1px solid var(--line);
  transition:border-color .18s var(--ease);
}
.check-item:last-child{border-bottom:0}
.check-item:hover{border-color:var(--line-hover)}
.check-num{
  flex-shrink:0;width:34px;height:34px;border-radius:9px;display:grid;place-items:center;
  font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px;font-weight:600;
  color:var(--primary);background:rgba(53,224,180,.1);border:1px solid rgba(53,224,180,.22);
}
.check-item h3{font-size:16px;margin-bottom:6px}
.check-item p{font-size:14px;color:var(--text-dim);line-height:1.85}

/* ---------- faq ---------- */
.faq-wrap{display:grid;grid-template-columns:248px 1fr;gap:48px;align-items:start}
.faq-aside{position:sticky;top:88px}
.faq-aside .aside-title{font-size:13px;color:var(--muted-blue);letter-spacing:.1em;margin-bottom:16px}
.faq-aside ul{display:flex;flex-direction:column;gap:2px;border-left:1px solid var(--line)}
.faq-aside li a{
  display:block;padding:9px 0 9px 16px;font-size:14px;color:var(--text-dim);
  border-left:2px solid transparent;margin-left:-1px;transition:all .18s var(--ease);
}
.faq-aside li a:hover{color:var(--primary);border-color:var(--primary)}
.faq-aside .aside-note{margin-top:22px;font-size:12.5px;color:var(--muted-blue);line-height:1.9}
.faq-groups{display:flex;flex-direction:column;gap:36px}
.faq-group-title{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:600;color:var(--text);margin-bottom:6px}
.faq-group-title i{display:inline-block;width:3px;height:15px;border-radius:2px;background:var(--primary)}
.acc-item{border:1px solid var(--line);border-radius:var(--r-card);background:var(--card);margin-top:12px;transition:border-color .18s var(--ease),box-shadow .18s var(--ease)}
.acc-item:hover{border-color:var(--line-hover)}
.acc-item.open{border-color:rgba(53,224,180,.38);box-shadow:0 10px 28px rgba(0,0,0,.32)}
.acc-head{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;background:transparent;border:0;cursor:pointer;text-align:left;
  color:var(--text);font-size:15px;font-weight:600;line-height:1.6;
}
.acc-head:hover{color:var(--primary-light)}
.acc-icon{
  flex-shrink:0;position:relative;width:18px;height:18px;
  transition:transform .22s var(--ease);
}
.acc-icon::before,.acc-icon::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;
}
.acc-icon::before{left:0;top:8px;width:18px;height:2px}
.acc-icon::after{left:8px;top:0;width:2px;height:18px;transition:opacity .22s var(--ease),transform .22s var(--ease)}
.acc-item.open .acc-icon::after{opacity:0;transform:scaleY(.3)}
.acc-body{max-height:0;overflow:hidden;transition:max-height .26s var(--ease)}
.acc-body-inner{padding:0 22px 20px;border-top:1px solid var(--line);margin-top:-2px;padding-top:16px}
.acc-body-inner p{font-size:14.5px;line-height:1.95;color:var(--text-dim)}
.acc-body-inner p + p{margin-top:10px}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:8px}
.stat{
  padding:26px 24px;border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--card);transition:all .18s var(--ease);
}
.stat:hover{border-color:var(--line-hover);transform:translateY(-2px);box-shadow:var(--shadow)}
.stat .stat-num{
  font-family:ui-monospace,Menlo,Consolas,monospace;font-size:26px;font-weight:600;
  color:var(--primary);letter-spacing:-.02em;line-height:1.2;
}
.stat .stat-num small{font-size:13px;color:var(--text-dim);font-weight:500;margin-left:4px}
.stat h3{font-size:15px;margin:12px 0 8px}
.stat p{font-size:13.5px;color:var(--text-dim);line-height:1.8}

/* ---------- form ---------- */
.form-wrap{
  display:grid;grid-template-columns:.85fr 1.15fr;gap:0;
  border:1px solid var(--line);border-radius:20px;overflow:hidden;background:var(--card);
  box-shadow:var(--shadow);
}
.form-intro{
  padding:40px 36px;background:linear-gradient(160deg,rgba(53,224,180,.10),rgba(19,31,42,.2) 60%);
  border-right:1px solid var(--line);
}
.form-intro h2{font-size:22px;margin-bottom:14px}
.form-intro p{font-size:14px;color:var(--text-dim);line-height:1.9;margin-bottom:22px}
.form-intro ul{display:flex;flex-direction:column;gap:10px}
.form-intro li{display:flex;gap:10px;font-size:13.5px;color:var(--text-body);line-height:1.75}
.form-intro li svg{flex-shrink:0;margin-top:4px;color:var(--primary)}
.lead-form{padding:40px 36px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;color:var(--text-body);margin-bottom:8px;font-weight:500}
.field label .req{color:var(--accent);margin-left:2px}
.field input,.field select,.field textarea{
  width:100%;background:rgba(255,255,255,.03);border:1px solid var(--line);
  border-radius:var(--r-sm);color:var(--text);font-size:14px;font-family:inherit;
  padding:0 14px;height:44px;outline:none;transition:all .18s var(--ease);
}
.field textarea{height:112px;padding:12px 14px;line-height:1.8;resize:vertical}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted-blue) 50%),linear-gradient(135deg,var(--muted-blue) 50%,transparent 50%);background-position:calc(100% - 18px) 19px,calc(100% - 13px) 19px;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
.field input::placeholder,.field textarea::placeholder{color:var(--muted-blue)}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--primary);box-shadow:0 0 0 3px rgba(53,224,180,.14);
}
.field.invalid input,.field.invalid textarea,.field.invalid select{border-color:var(--err)}
.field .err{display:none;font-size:12px;color:var(--err);margin-top:6px}
.field.invalid .err{display:block}
.form-foot{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:6px}
.form-note{font-size:11.5px;color:var(--muted-blue);line-height:1.8;margin-top:14px}
.form-success{
  display:none;margin-top:16px;padding:14px 16px;border-radius:var(--r-sm);
  border:1px solid rgba(53,224,180,.4);background:rgba(53,224,180,.08);
  color:var(--primary-light);font-size:13.5px;
}
.form-success.show{display:block}

/* ---------- cta band ---------- */
.cta-band{
  border:1px solid rgba(255,255,255,.12);border-radius:20px;
  background:rgba(255,255,255,.06);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.14),0 14px 40px rgba(0,0,0,.4);
  padding:36px 40px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
}
.cta-band h2{font-size:20px;margin-bottom:8px}
.cta-band p{font-size:14px;color:var(--text-dim)}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.back-link{
  display:inline-flex;align-items:center;gap:8px;margin-top:32px;
  font-size:14px;color:var(--text-dim);
}
.back-link:hover{color:var(--primary)}

/* ---------- footer ---------- */
.site-footer{background:var(--surface);border-top:1px solid var(--line);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:48px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:13.5px;color:var(--text-dim);line-height:1.9;max-width:280px}
.footer-brand .tech{margin-top:14px;font-size:12px;color:var(--muted-blue);font-family:ui-monospace,Menlo,Consolas,monospace}
.footer-col h3{font-size:13px;color:var(--text);letter-spacing:.06em;margin-bottom:16px;font-weight:600}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col li{font-size:13.5px;color:var(--text-dim);line-height:1.7}
.footer-col a:hover{color:var(--primary)}
.footer-contact li{display:flex;gap:10px;align-items:flex-start}
.footer-contact svg{flex-shrink:0;margin-top:4px;color:var(--muted-blue)}
.footer-bottom{
  margin-top:48px;border-top:1px solid var(--line);padding:20px 0;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:12.5px;color:var(--muted-blue);
}
.footer-bottom .mono{color:var(--muted-blue)}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{max-width:1040px}
  .nav-desktop a{padding:8px 9px;font-size:13.5px}
  .search{width:180px}
}
@media (max-width:1023px){
  .nav-desktop,.search,.quick-link{display:none}
  .menu-toggle{display:inline-flex}
  .header-inner{height:56px}
  .section{padding:72px 0}
  .check-grid{grid-template-columns:1fr;gap:36px}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .faq-aside{position:static}
  .faq-aside ul{flex-direction:row;flex-wrap:wrap;border-left:0;gap:8px}
  .faq-aside li a{border-left:0;border:1px solid var(--line);border-radius:8px;padding:7px 12px;margin:0}
  .form-wrap{grid-template-columns:1fr}
  .form-intro{border-right:0;border-bottom:1px solid var(--line)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:767px){
  body{font-size:15px}
  .section{padding:56px 0}
  .page-banner{min-height:0;padding:60px 0 32px}
  .page-banner h1{font-size:26px}
  .banner-actions .btn{flex:1 1 auto}
  .stats{grid-template-columns:1fr}
  .field-row{grid-template-columns:1fr}
  .lead-form,.form-intro{padding:26px 20px}
  .cta-band{padding:26px 20px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .acc-head{padding:16px;font-size:14.5px}
  .acc-body-inner{padding:14px 16px 18px}
  .footer-bottom{flex-direction:column}
}
@media (max-width:519px){
  .logo-text strong{font-size:14px}
  .footer-grid{grid-template-columns:1fr}
  .banner-actions{flex-direction:column;align-items:stretch}
  .form-foot .btn{width:100%}
}