/* roulang page: index */
:root{
  --bg-0:#05070F;--bg-1:#0A0F1C;--bg-2:#0C141F;--panel:#101A2B;
  --ink-0:#F2F6FF;--ink-1:#B6C2D6;--ink-2:#74829A;
  --brand:#1FC8FF;--brand-deep:#0E7BFF;--accent:#7C5CFF;--warm:#FFB443;--ok:#3DDC97;
  --card-bg:rgba(18,26,42,.72);--card-border:rgba(255,255,255,.08);
  --glass-bg:rgba(23,33,51,.72);--glass-border:rgba(120,200,255,.18);
  --radius-card:18px;--radius-btn:12px;--radius-pill:999px;--radius-img:14px;
  --sh-1:0 8px 20px rgba(0,0,0,.35);--sh-2:0 18px 40px rgba(0,0,0,.45);
  --sh-glow:0 0 0 1px rgba(31,200,255,.45),0 10px 30px rgba(31,200,255,.32);
  --font-cn:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --font-num:ui-monospace,"SF Mono",Menlo,Consolas,"Space Grotesk",monospace;
  --sect-lg:96px;--sect-md:72px;--sect-sm:56px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg-0);color:var(--ink-1);
  font-family:var(--font-cn);font-size:16px;line-height:1.95;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;color:var(--ink-0);font-weight:700;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none;transition:color .24s ease,transform .24s ease}
img{max-width:100%;display:block;border-radius:var(--radius-img)}
button,input{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
::selection{background:rgba(31,200,255,.3);color:#fff}

.container{max-width:1240px;margin:0 auto;padding:0 24px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:.01em}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:200;
  background:transparent;transition:background .3s ease,border-color .3s ease,box-shadow .3s ease,backdrop-filter .3s ease;
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:var(--glass-bg);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border-bottom-color:var(--glass-border);box-shadow:var(--sh-1);
}
.nav{display:flex;align-items:center;gap:20px;height:74px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  box-shadow:0 0 0 1px rgba(31,200,255,.35),0 6px 18px rgba(31,200,255,.25);
}
.brand-mark span{display:block;width:12px;height:12px;border-radius:3px;background:#05070F}
.brand-text{font-size:17px;font-weight:800;color:var(--ink-0);letter-spacing:.2px;white-space:nowrap}
.nav-channels{display:flex;align-items:center;gap:2px;margin-left:8px}
.nav-channels a{
  padding:9px 13px;border-radius:var(--radius-pill);font-size:14.5px;color:var(--ink-1);
  white-space:nowrap;transition:background .24s ease,color .24s ease;
}
.nav-channels a:hover{background:rgba(31,200,255,.1);color:var(--ink-0)}
.nav-channels a.active{color:var(--brand);background:rgba(31,200,255,.12);box-shadow:inset 0 0 0 1px rgba(31,200,255,.28)}
.nav-tools{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;
  border-radius:var(--radius-pill);background:rgba(16,26,43,.85);
  border:1px solid var(--card-border);transition:border-color .24s ease,box-shadow .24s ease;
}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,200,255,.15)}
.nav-search svg{width:16px;height:16px;stroke:var(--ink-2);fill:none;stroke-width:1.8;flex-shrink:0}
.nav-search input{
  width:150px;border:0;background:transparent;font-size:14px;color:var(--ink-0);
}
.nav-search input::placeholder{color:var(--ink-2)}
.nav-search input:focus{outline:none}
.link-btn{font-size:14.5px;color:var(--ink-1);padding:8px 10px;border-radius:var(--radius-btn)}
.link-btn:hover{color:var(--brand)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--card-border);
  background:rgba(16,26,43,.8);place-items:center;
}
.nav-toggle i{display:block;width:18px;height:2px;background:var(--ink-0);border-radius:2px;position:relative;transition:.24s}
.nav-toggle i::before,.nav-toggle i::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-0);border-radius:2px;transition:.24s;
}
.nav-toggle i::before{top:-6px}
.nav-toggle i::after{top:6px}

.drawer{
  position:fixed;inset:74px 0 0 0;z-index:190;display:none;
  background:rgba(5,7,15,.97);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  padding:28px 24px 40px;overflow-y:auto;
}
.drawer.is-open{display:block}
.drawer-list a{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 4px;font-size:19px;font-weight:700;color:var(--ink-0);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.drawer-list a span{color:var(--ink-2);font-size:13px;font-weight:400}
.drawer-list a.active{color:var(--brand)}
.drawer-form{margin-top:26px;display:flex;gap:10px}
.drawer-form input{
  flex:1;height:48px;padding:0 16px;border-radius:var(--radius-btn);
  background:var(--panel);border:1px solid var(--card-border);color:var(--ink-0);
}
.drawer-form input::placeholder{color:var(--ink-2)}
.drawer-cta{margin-top:18px;width:100%;justify-content:center}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--radius-btn);font-size:15px;font-weight:700;
  transition:transform .24s ease,box-shadow .24s ease,background .24s ease,border-color .24s ease,filter .2s ease;
}
.btn-primary{
  color:#04121C;background:linear-gradient(135deg,var(--brand),var(--accent));
  box-shadow:var(--sh-glow);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(31,200,255,.6),0 14px 34px rgba(31,200,255,.42)}
.btn-primary:active{transform:translateY(0);filter:brightness(.95)}
.btn-ghost{
  color:var(--ink-0);background:transparent;border:1px solid rgba(255,255,255,.18);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{padding:10px 18px;font-size:14px;border-radius:10px}
.text-link{color:var(--brand);font-size:14.5px;display:inline-flex;align-items:center;gap:6px}
.text-link:hover{text-decoration:underline}

/* ============ 通用板块 ============ */
.section{padding:var(--sect-lg) 0;position:relative}
.section-tight{padding:var(--sect-md) 0}
.section-alt{background:var(--bg-1)}
.section-alt2{background:var(--bg-2)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px}
.section-head h2{font-size:clamp(26px,3.2vw,38px);line-height:1.25}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.14em;
  color:var(--brand);text-transform:uppercase;margin-bottom:14px;font-family:var(--font-num);
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brand);opacity:.7}
.lead{max-width:780px;font-size:16.5px;line-height:2;color:var(--ink-1)}
.divider{height:1px;background:linear-gradient(90deg,rgba(31,200,255,.35),rgba(255,255,255,0));border:0;margin:0}

/* ============ Hero ============ */
.hero{
  position:relative;padding:158px 0 84px;overflow:hidden;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center right;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(5,7,15,.96) 0%,rgba(5,7,15,.86) 38%,rgba(5,7,15,.42) 100%);
}
.hero::after{
  content:"";position:absolute;left:-10%;bottom:-40%;width:640px;height:640px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,200,255,.16),transparent 65%);pointer-events:none;
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:48px;align-items:center}
.hero-copy{max-width:640px}
.hero h1{
  font-size:clamp(34px,5vw,56px);line-height:1.15;font-weight:800;letter-spacing:-.5px;margin-bottom:20px;
}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(120deg,var(--brand),var(--accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:17px;line-height:2;color:var(--ink-1);max-width:560px;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:36px}
.badge{
  display:inline-flex;align-items:center;gap:7px;padding:7px 15px;border-radius:var(--radius-pill);
  font-size:13px;color:var(--brand);background:rgba(31,200,255,.1);
  box-shadow:inset 0 0 0 1px rgba(31,200,255,.25);
}
.badge i{width:6px;height:6px;border-radius:50%;background:var(--ok);display:block}
.badge.warm{color:var(--warm);background:rgba(255,180,67,.1);box-shadow:inset 0 0 0 1px rgba(255,180,67,.28)}
.badge.warm i{background:var(--warm)}

.glass-panel{
  background:var(--glass-bg);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  border:1px solid var(--glass-border);border-radius:var(--radius-card);
  box-shadow:var(--sh-2),inset 0 1px 0 rgba(255,255,255,.08);
}
.hero-metrics{padding:28px 26px;display:grid;gap:22px}
.metric{display:flex;align-items:baseline;justify-content:space-between;gap:16px}
.metric-value{font-family:var(--font-num);font-size:30px;font-weight:700;color:var(--ink-0);line-height:1;letter-spacing:-.5px}
.metric-value small{font-size:14px;color:var(--brand);margin-left:4px;font-weight:600}
.metric-label{font-size:12px;color:var(--ink-2);line-height:1.7;text-align:right;max-width:150px}
.metric + .metric{border-top:1px solid rgba(255,255,255,.06);padding-top:20px}
.hero-note{margin-top:18px;font-size:12.5px;color:var(--ink-2)}

/* ============ 主张条 ============ */
.claims{display:grid;gap:16px}
.claim{
  display:flex;gap:20px;align-items:flex-start;padding:26px 28px;
  background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-card);
  box-shadow:var(--sh-1),inset 0 1px 0 rgba(255,255,255,.05);
  transition:border-color .24s ease,transform .24s ease;
}
.claim:hover{border-color:rgba(31,200,255,.35);transform:translateY(-4px)}
.claim-icon{
  width:46px;height:46px;flex-shrink:0;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(31,200,255,.22),rgba(124,92,255,.22));
  box-shadow:inset 0 0 0 1px rgba(120,200,255,.25);
}
.claim-icon svg{width:22px;height:22px;stroke:var(--brand);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.claim h3{font-size:18px;margin-bottom:8px}
.claim p{font-size:15px;line-height:1.9;color:var(--ink-1)}

/* ============ 故事区 ============ */
.story{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.story + .story{margin-top:var(--sect-md)}
.story-media{position:relative;border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--card-border);box-shadow:var(--sh-2)}
.story-media img{width:100%;height:340px;object-fit:cover;border-radius:0;transition:transform .5s ease}
.story-media:hover img{transform:scale(1.03)}
.story-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,7,15,0) 45%,rgba(5,7,15,.72) 100%)}
.story-tag{
  position:absolute;left:16px;bottom:16px;z-index:2;
  padding:6px 13px;border-radius:var(--radius-pill);font-size:12.5px;
  color:var(--ink-0);background:rgba(5,7,15,.68);border:1px solid rgba(120,200,255,.24);
}
.story-body h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:20px}
.story-body p + p{margin-top:16px}
.story-list{margin-top:24px;display:grid;gap:12px}
.story-list li{display:flex;gap:12px;font-size:15px;line-height:1.85}
.story-list li::before{
  content:"";width:7px;height:7px;border-radius:50%;background:var(--brand);
  margin-top:11px;flex-shrink:0;box-shadow:0 0 0 4px rgba(31,200,255,.14);
}

/* ============ 精选内容卡 ============ */
.featured-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:24px}
.card{
  position:relative;background:var(--card-bg);border:1px solid var(--card-border);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--sh-2),inset 0 1px 0 rgba(255,255,255,.05);
  transition:border-color .24s ease,transform .24s ease,box-shadow .24s ease;
  display:flex;flex-direction:column;
}
.card:hover{border-color:rgba(31,200,255,.35);transform:translateY(-4px);box-shadow:0 22px 48px rgba(0,0,0,.5)}
.card-cover{position:relative;overflow:hidden}
.card-cover img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .4s ease}
.card:hover .card-cover img{transform:scale(1.04)}
.card-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,7,15,.05) 30%,rgba(5,7,15,.85) 100%)}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-body h3{font-size:18px;line-height:1.45}
.card-body p{font-size:14.5px;line-height:1.85;color:var(--ink-1);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:8px}
.card-arrow{color:var(--brand);font-family:var(--font-num);font-size:15px}
.card-lg{grid-column:span 3}
.card-lg .card-cover{height:280px}
.card-lg .card-body{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:26px 28px 28px}
.card-lg .card-cover{height:100%;min-height:380px}
.card-lg::before{
  content:"";position:absolute;left:0;right:0;bottom:0;height:70%;z-index:1;
  background:linear-gradient(180deg,rgba(5,7,15,0),rgba(5,7,15,.92) 70%);
}
.card-lg .card-body h3{font-size:23px}
.card-lg .card-body p{-webkit-line-clamp:3;font-size:15px}
.card-sm{grid-column:span 2}
.card-sm .card-cover{height:180px}
.card-sm .card-body{padding:20px 20px 22px}
.card-sm .card-body h3{font-size:16.5px}
.chip{
  display:inline-flex;align-items:center;padding:5px 12px;border-radius:var(--radius-pill);
  font-size:12.5px;color:var(--brand);background:rgba(31,200,255,.12);
  box-shadow:inset 0 0 0 1px rgba(31,200,255,.25);
}
.chip.violet{color:var(--accent);background:rgba(124,92,255,.14);box-shadow:inset 0 0 0 1px rgba(124,92,255,.3)}
.chip.amber{color:var(--warm);background:rgba(255,180,67,.12);box-shadow:inset 0 0 0 1px rgba(255,180,67,.3)}

/* ============ 数据横带 ============ */
.stats-band{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--card-border);border:1px solid var(--card-border);
  border-radius:var(--radius-card);overflow:hidden;
}
.stat{background:var(--panel);padding:32px 26px;transition:background .24s ease}
.stat:hover{background:#132034}
.stat-value{font-family:var(--font-num);font-size:34px;font-weight:700;color:var(--ink-0);line-height:1.1;letter-spacing:-1px}
.stat-value span{font-size:15px;color:var(--brand);margin-left:4px;font-weight:600}
.stat-label{margin-top:10px;font-size:13.5px;color:var(--ink-2);line-height:1.75}

.quote-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:32px}
.quote{
  position:relative;padding:30px 28px 26px;background:var(--card-bg);
  border:1px solid var(--card-border);border-radius:var(--radius-card);box-shadow:var(--sh-1);
}
.quote::before{
  content:"“";position:absolute;top:6px;right:22px;font-size:64px;line-height:1;
  font-family:var(--font-num);color:rgba(31,200,255,.18);
}
.quote p{font-size:15.5px;line-height:1.95;color:var(--ink-1);min-height:88px}
.quote-foot{display:flex;align-items:center;gap:12px;margin-top:20px;padding-top:18px;border-top:1px solid rgba(255,255,255,.06)}
.avatar{
  width:40px;height:40px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(135deg,rgba(31,200,255,.28),rgba(124,92,255,.34));
  box-shadow:inset 0 0 0 1px rgba(120,200,255,.28);
}
.quote-name{font-size:14.5px;color:var(--ink-0);font-weight:600}
.quote-role{font-size:12.5px;color:var(--ink-2)}
.logo-row{
  display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;
}
.logo-pill{
  padding:10px 20px;border-radius:var(--radius-pill);font-size:13px;color:var(--ink-2);
  border:1px dashed rgba(255,255,255,.12);font-family:var(--font-num);letter-spacing:.04em;
}

/* ============ 最新信息 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;background:var(--card-bg);border:1px solid var(--card-border);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--sh-2);
  transition:border-color .24s ease,transform .24s ease;
}
.news-card:hover{border-color:rgba(31,200,255,.35);transform:translateY(-4px)}
.news-cover{position:relative;height:186px;overflow:hidden;background:var(--panel)}
.news-cover img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .4s ease}
.news-card:hover .news-cover img{transform:scale(1.04)}
.news-cover .chip{position:absolute;left:14px;top:14px;z-index:2;background:rgba(5,7,15,.75)}
.news-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-body h3{
  font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card:hover .news-body h3{color:var(--brand)}
.news-body p{
  font-size:14px;line-height:1.85;color:var(--ink-1);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding-top:14px;border-top:1px solid rgba(255,255,255,.06);
  font-size:12.5px;color:var(--ink-2);
}
.news-time{font-family:var(--font-num);font-variant-numeric:tabular-nums;text-align:right}
.news-empty{
  grid-column:1/-1;display:grid;place-items:center;gap:14px;padding:64px 24px;text-align:center;
  border:1px dashed rgba(120,200,255,.22);border-radius:var(--radius-card);background:rgba(16,26,43,.5);
}
.empty-icon{
  width:62px;height:62px;border-radius:50%;display:grid;place-items:center;
  border:1px solid rgba(31,200,255,.24);background:rgba(31,200,255,.06);
}
.empty-icon svg{width:26px;height:26px;stroke:var(--brand);fill:none;stroke-width:1.6;stroke-linecap:round}
.news-empty p{color:var(--ink-1);font-size:15px}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.4fr);gap:48px;align-items:start}
.faq-list{display:grid;gap:14px}
.faq-item{
  background:var(--panel);border:1px solid var(--card-border);border-radius:var(--radius-card);
  overflow:hidden;transition:border-color .24s ease;
}
.faq-item.is-open{border-color:rgba(31,200,255,.35)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;text-align:left;font-size:16.5px;font-weight:700;color:var(--ink-0);
}
.faq-q .sign{
  font-family:var(--font-num);font-size:20px;color:var(--brand);line-height:1;flex-shrink:0;
}
.faq-a{display:none;padding:0 24px 24px;font-size:15px;line-height:1.9;color:var(--ink-1);border-left:3px solid transparent}
.faq-item.is-open .faq-a{display:block;border-left-color:var(--brand);margin-left:0}
.faq-item.is-open .faq-a{padding-left:22px}

/* ============ CTA 表单 ============ */
.cta-panel{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.95fr);gap:48px;align-items:center;
  padding:52px 48px;border-radius:calc(var(--radius-card) + 6px);
  background:var(--glass-bg);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  border:1px solid var(--glass-border);box-shadow:var(--sh-2),inset 0 1px 0 rgba(255,255,255,.08);
  position:relative;overflow:hidden;
}
.cta-panel::after{
  content:"";position:absolute;right:-120px;top:-120px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(124,92,255,.22),transparent 65%);pointer-events:none;
}
.cta-copy h2{font-size:clamp(24px,2.8vw,34px);margin-bottom:16px}
.cta-copy p{font-size:15.5px;line-height:1.95;color:var(--ink-1);max-width:520px}
.cta-form{position:relative;z-index:2;display:grid;gap:14px}
.field{display:grid;gap:8px}
.field label{font-size:13px;color:var(--ink-2)}
.field input{
  height:52px;padding:0 16px;border-radius:var(--radius-btn);
  background:var(--panel);border:1px solid var(--card-border);color:var(--ink-0);
  transition:border-color .24s ease,box-shadow .24s ease;
}
.field input::placeholder{color:var(--ink-2)}
.field input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,200,255,.15)}
.field.has-error input{border-color:var(--warm)}
.field-msg{font-size:12.5px;color:var(--warm);display:none}
.field.has-error .field-msg{display:block}
.check{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--ink-2);line-height:1.7}
.check input{width:16px;height:16px;margin-top:4px;accent-color:#1FC8FF}
.form-note{font-size:12.5px;color:var(--ink-2)}
.form-status{font-size:13.5px;color:var(--ok);display:none}
.form-status.is-show{display:block}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-1);border-top:1px solid rgba(255,255,255,.06);padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-desc{font-size:14px;line-height:1.95;color:var(--ink-2);max-width:330px}
.footer-col h4{font-size:14.5px;color:var(--ink-0);margin-bottom:18px;letter-spacing:.02em}
.footer-col li + li{margin-top:12px}
.footer-col a{font-size:14px;color:var(--ink-2);display:inline-block}
.footer-col a:hover{color:var(--brand);transform:translateX(2px)}
.footer-sub{margin-top:16px;display:flex;gap:10px}
.footer-sub input{
  flex:1;height:46px;padding:0 14px;border-radius:var(--radius-btn);
  background:var(--panel);border:1px solid var(--card-border);color:var(--ink-0);font-size:14px;
}
.footer-sub input::placeholder{color:var(--ink-2)}
.footer-sub input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,200,255,.15)}
.footer-bottom{
  margin-top:56px;padding:22px 0 26px;border-top:1px solid rgba(255,255,255,.06);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--ink-2);
}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:18px}
.footer-bottom a:hover{color:var(--brand)}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .nav-channels a{padding:9px 10px;font-size:14px}
  .nav-search input{width:110px}
  .container{padding:0 22px}
}
@media (max-width:1080px){
  .nav-channels,.nav-search,.link-btn{display:none}
  .nav-toggle{display:grid}
  .nav{height:68px}
  .drawer{inset:68px 0 0 0}
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero{padding:132px 0 72px}
  .featured-grid{grid-template-columns:repeat(4,1fr)}
  .card-lg{grid-column:span 4}
  .card-sm{grid-column:span 2}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .faq-wrap{grid-template-columns:1fr;gap:32px}
  .cta-panel{grid-template-columns:1fr;gap:32px;padding:40px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .stats-band{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  :root{--sect-lg:56px;--sect-md:48px;--sect-sm:44px}
  body{font-size:15.5px}
  .container{padding:0 16px}
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:32px}
  .hero{padding:118px 0 56px;background-position:center}
  .hero-sub{font-size:16px}
  .hero-actions .btn{flex:1 1 auto}
  .featured-grid{grid-template-columns:1fr}
  .card-lg,.card-sm{grid-column:span 1}
  .card-lg .card-cover{min-height:260px}
  .card-lg::before{height:78%}
  .card-lg .card-body{position:static;padding:22px 22px 24px}
  .news-grid{grid-template-columns:1fr}
  .story{grid-template-columns:1fr;gap:26px}
  .story-media img{height:240px}
  .story + .story{margin-top:48px}
  .quote-grid{grid-template-columns:1fr}
  .stats-band{grid-template-columns:1fr}
  .cta-panel{padding:32px 22px}
  .claim{padding:22px 20px;gap:16px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px}
}
@media (max-width:480px){
  .hero h1{font-size:30px}
  .brand-text{font-size:15.5px}
  .btn{width:100%}
  .hero-actions{flex-direction:column}
  .hero-badges{gap:8px}
  .badge{font-size:12px;padding:6px 12px}
  .metric{flex-direction:column;align-items:flex-start;gap:6px}
  .metric-label{text-align:left;max-width:none}
  .stat-value{font-size:28px}
  .footer-sub{flex-direction:column}
  .footer-sub .btn{width:100%}
  .drawer-form{flex-direction:column}
}

/* roulang page: article */
:root{
  --bg-0:#05070F;
  --bg-1:#0A0F1C;
  --bg-2:#0C141F;
  --panel:#101A2B;
  --ink-0:#F2F6FF;
  --ink-1:#B6C2D6;
  --ink-2:#74829A;
  --brand:#1FC8FF;
  --brand-deep:#0E7BFF;
  --accent:#7C5CFF;
  --warm:#FFB443;
  --ok:#3DDC97;
  --card-bg:rgba(18,26,42,.72);
  --card-border:rgba(255,255,255,.08);
  --glass-bg:rgba(23,33,51,.72);
  --glass-border:rgba(120,200,255,.18);
  --radius-card:18px;
  --radius-btn:12px;
  --radius-pill:999px;
  --radius-img:14px;
  --sh-1:0 8px 20px rgba(0,0,0,.35);
  --sh-2:0 18px 40px rgba(0,0,0,.45);
  --sh-glow:0 0 0 1px rgba(31,200,255,.45),0 10px 30px rgba(31,200,255,.32);
  --font-cn:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Space Grotesk",Inter,ui-monospace,SFMono-Regular,Menlo,monospace;
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.95;
  color:var(--ink-1);
  background:
    radial-gradient(900px 520px at 82% -8%, rgba(124,92,255,.16), transparent 62%),
    radial-gradient(760px 460px at 6% 4%, rgba(31,200,255,.14), transparent 60%),
    linear-gradient(180deg,var(--bg-0) 0%,var(--bg-1) 46%,var(--bg-2) 100%);
  background-attachment:fixed;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--radius-img)}
a{color:inherit;text-decoration:none;transition:color .22s ease}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink-0);font-weight:700;letter-spacing:.2px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  border-bottom:1px solid rgba(255,255,255,.06);
  background:rgba(5,7,15,.62);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-header.is-scrolled{
  background:var(--glass-bg);
  border-bottom-color:var(--glass-border);
  box-shadow:var(--sh-1);
}
.nav{
  display:flex;align-items:center;gap:24px;
  height:72px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:32px;height:32px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  box-shadow:0 6px 18px rgba(31,200,255,.32);
}
.brand-mark span{width:12px;height:12px;border-radius:4px;background:#04121C;box-shadow:inset 0 0 8px rgba(31,200,255,.6)}
.brand-text{font-size:17px;font-weight:700;color:var(--ink-0);letter-spacing:.4px;white-space:nowrap}
.nav-channels{display:flex;align-items:center;gap:6px;flex:1 1 auto;min-width:0}
.nav-channels a{
  padding:8px 12px;border-radius:var(--radius-pill);
  font-size:14.5px;color:var(--ink-1);white-space:nowrap;
}
.nav-channels a:hover{color:var(--ink-0);background:rgba(31,200,255,.08)}
.nav-channels a.active{color:var(--ink-0);background:rgba(31,200,255,.12);box-shadow:inset 0 0 0 1px rgba(31,200,255,.28)}
.nav-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-search{
  display:flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:var(--radius-pill);
  background:rgba(16,26,43,.9);border:1px solid var(--card-border);
  transition:border-color .22s ease,box-shadow .22s ease;
}
.nav-search svg{width:16px;height:16px;fill:none;stroke:var(--ink-2);stroke-width:2;stroke-linecap:round}
.nav-search input{
  border:0;background:transparent;color:var(--ink-0);font-size:14px;width:150px;outline:none;
}
.nav-search input::placeholder{color:var(--ink-2)}
.nav-search:focus-within{border-color:rgba(31,200,255,.6);box-shadow:0 0 0 3px rgba(31,200,255,.15)}
.link-btn{font-size:14.5px;color:var(--ink-1);padding:8px 6px;border-radius:8px}
.link-btn:hover{color:var(--brand)}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:12px;cursor:pointer;
  background:rgba(16,26,43,.9);border:1px solid var(--card-border);position:relative;
}
.nav-toggle i,.nav-toggle i::before,.nav-toggle i::after{
  position:absolute;left:50%;top:50%;width:16px;height:2px;border-radius:2px;background:var(--ink-0);
  transform:translate(-50%,-50%);content:"";transition:transform .24s ease,opacity .24s ease;
}
.nav-toggle i::before{transform:translate(-50%,-6px)}
.nav-toggle i::after{transform:translate(-50%,6px)}
body.nav-open .nav-toggle i{background:transparent}
body.nav-open .nav-toggle i::before{transform:translate(-50%,0) rotate(45deg)}
body.nav-open .nav-toggle i::after{transform:translate(-50%,0) rotate(-45deg)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);border:1px solid transparent;cursor:pointer;
  font-size:15px;font-weight:600;padding:12px 22px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease,background .22s ease;
}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--accent));
  color:#03121B;box-shadow:var(--sh-glow);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(31,200,255,.6),0 16px 36px rgba(31,200,255,.4)}
.btn-primary:active{transform:translateY(0);filter:brightness(.95)}
.btn-ghost{
  background:rgba(255,255,255,.02);border-color:rgba(255,255,255,.18);color:var(--ink-0);
}
.btn-ghost:hover{transform:translateY(-2px);border-color:rgba(31,200,255,.55);color:var(--brand)}
.btn-ghost:active{transform:translateY(0);filter:brightness(.95)}

/* ---------- page banner ---------- */
.page-banner{
  position:relative;overflow:hidden;
  background-image:linear-gradient(115deg,rgba(5,7,15,.94) 0%,rgba(5,7,15,.78) 46%,rgba(5,7,15,.5) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.page-banner .container{padding-top:34px;padding-bottom:34px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);flex-wrap:wrap}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb span.sep{opacity:.55}
.banner-tags{display:flex;gap:10px;margin-top:18px;flex-wrap:wrap}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--radius-pill);
  font-size:13px;color:var(--brand);
  background:rgba(31,200,255,.12);border:1px solid rgba(31,200,255,.25);
}
.chip-warm{color:var(--warm);background:rgba(255,180,67,.12);border-color:rgba(255,180,67,.28)}
.dot{width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 8px rgba(61,220,151,.8)}
.banner-title{max-width:820px;margin-top:16px;font-size:clamp(24px,3.4vw,36px);line-height:1.3;color:var(--ink-0)}

/* ---------- article ---------- */
.article-main{padding:56px 0 88px}
.article-shell{max-width:900px;margin:0 auto}
.article-head{
  background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-card);
  box-shadow:var(--sh-2);padding:32px 34px;position:relative;overflow:hidden;
}
.article-head::before{
  content:"";position:absolute;inset:0 0 auto 0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(31,200,255,.65),transparent);
}
.article-head h1{
  font-size:clamp(28px,3.6vw,40px);line-height:1.24;font-weight:800;
}
.article-meta{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  margin-top:18px;font-size:13.5px;color:var(--ink-2);
}
.article-meta a{color:var(--brand)}
.article-meta .sep{opacity:.5}
.article-body{
  max-width:760px;margin:44px auto 0;
  font-size:17px;line-height:2;color:var(--ink-1);
}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1em}
.article-body h2{
  margin:40px 0 16px;padding-left:14px;
  font-size:clamp(22px,2.4vw,27px);line-height:1.4;
  border-left:3px solid var(--brand);
}
.article-body h3{margin:30px 0 12px;font-size:20px;line-height:1.45}
.article-body h4{margin:24px 0 10px;font-size:17px}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:22px}
.article-body ul li{list-style:disc;margin-bottom:.45em}
.article-body ol li{list-style:decimal;margin-bottom:.45em}
.article-body li::marker{color:var(--brand)}
.article-body blockquote{
  margin:0 0 1.3em;padding:16px 20px;
  border-left:3px solid var(--brand);border-radius:0 var(--radius-img) var(--radius-img) 0;
  background:rgba(31,200,255,.06);color:var(--ink-1);
}
.article-body a{color:var(--brand);border-bottom:1px dashed rgba(31,200,255,.5)}
.article-body a:hover{border-bottom-style:solid}
.article-body img{margin:24px auto;box-shadow:var(--sh-1);background:var(--panel)}
.article-body figure{margin:24px 0}
.article-body figcaption{margin-top:10px;font-size:13px;color:var(--ink-2);text-align:center}
.article-body table{
  width:100%;border-collapse:collapse;margin:0 0 1.4em;font-size:15px;
}
.article-body th,.article-body td{
  padding:12px 14px;text-align:left;border-bottom:1px solid rgba(255,255,255,.08);
}
.article-body th{color:var(--ink-0);font-weight:700;background:rgba(31,200,255,.05)}
.article-body code{
  font-family:var(--font-num);font-size:14px;color:#8FE4FF;
  background:rgba(31,200,255,.1);border:1px solid rgba(31,200,255,.2);
  padding:2px 6px;border-radius:6px;
}
.article-body pre{
  margin:0 0 1.3em;padding:18px;overflow-x:auto;
  background:#0A1220;border:1px solid rgba(255,255,255,.08);border-radius:var(--radius-img);
}
.article-body pre code{background:transparent;border:0;padding:0;color:var(--ink-1)}
.article-body hr{border:0;border-top:1px solid rgba(255,255,255,.08);margin:32px 0}

.article-empty{
  max-width:760px;margin:44px auto 0;text-align:center;
  background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-card);
  box-shadow:var(--sh-2);padding:56px 28px;
}
.article-empty .ring{
  width:64px;height:64px;margin:0 auto 18px;border-radius:50%;
  border:1px solid rgba(31,200,255,.35);background:rgba(31,200,255,.08);
  display:grid;place-items:center;
}
.article-empty .ring svg{width:26px;height:26px;fill:none;stroke:var(--brand);stroke-width:2;stroke-linecap:round}
.article-empty h2{font-size:20px}
.article-empty p{margin:10px 0 22px;color:var(--ink-2);font-size:15px}

/* tags + share */
.article-foot{
  max-width:760px;margin:44px auto 0;padding-top:26px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
}
.tag-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.tag-row .label{font-size:13px;color:var(--ink-2)}
.tag{
  padding:5px 12px;border-radius:var(--radius-pill);font-size:13px;color:var(--ink-1);
  background:rgba(255,255,255,.04);border:1px solid var(--card-border);
  transition:color .2s ease,border-color .2s ease,transform .2s ease;
}
.tag:hover{color:var(--brand);border-color:rgba(31,200,255,.45);transform:translateY(-2px)}
.share-row{display:flex;align-items:center;gap:10px}
.share-row .label{font-size:13px;color:var(--ink-2)}
.share-btn{
  width:36px;height:36px;border-radius:50%;display:grid;place-items:center;
  background:rgba(255,255,255,.04);border:1px solid var(--card-border);cursor:pointer;
  transition:border-color .2s ease,transform .2s ease;
}
.share-btn svg{width:16px;height:16px;fill:none;stroke:var(--ink-1);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.share-btn:hover{border-color:rgba(31,200,255,.5);transform:translateY(-2px)}
.share-btn:hover svg{stroke:var(--brand)}

/* ---------- related ---------- */
.section{padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.section-head h2{font-size:clamp(22px,2.6vw,30px)}
.section-head p{margin-top:8px;font-size:14.5px;color:var(--ink-2);max-width:620px}
.text-link{font-size:14px;color:var(--brand);display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.text-link:hover{gap:10px}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-card);
  box-shadow:var(--sh-2);
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.card:hover{transform:translateY(-4px);border-color:rgba(31,200,255,.35);box-shadow:0 0 0 1px rgba(31,200,255,.28),var(--sh-2)}
.card-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--panel)}
.card-cover img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .3s ease}
.card:hover .card-cover img{transform:scale(1.04)}
.card-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:16.5px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body p{font-size:14px;color:var(--ink-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--ink-2);margin-top:auto;padding-top:6px}
.card-meta .arrow{color:var(--brand);transition:transform .22s ease}
.card:hover .card-meta .arrow{transform:translateX(4px)}
.dual-entry{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}

/* ---------- cta ---------- */
.cta-panel{
  position:relative;overflow:hidden;
  background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:24px;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--sh-2);
  padding:44px;
  display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:center;
}
.cta-panel::after{
  content:"";position:absolute;right:-80px;top:-90px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(124,92,255,.32),transparent 62%);pointer-events:none;
}
.cta-panel h2{font-size:clamp(22px,2.6vw,30px);line-height:1.35}
.cta-panel p{margin-top:12px;font-size:15px;color:var(--ink-1);max-width:520px}
.cta-form{display:grid;gap:12px;position:relative;z-index:1}
.field-row{display:flex;gap:12px;flex-wrap:wrap}
.input{
  flex:1 1 200px;min-width:0;padding:14px 16px;border-radius:var(--radius-btn);
  background:var(--panel);border:1px solid var(--card-border);color:var(--ink-0);font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.input::placeholder{color:var(--ink-2)}
.input:focus{outline:none;border-color:rgba(31,200,255,.7);box-shadow:0 0 0 3px rgba(31,200,255,.15)}
.cta-note{font-size:12.5px;color:var(--ink-2);display:flex;align-items:center;gap:8px}
.cta-note input{accent-color:var(--brand)}

/* ---------- footer ---------- */
.site-footer{
  border-top:1px solid rgba(255,255,255,.07);
  background:linear-gradient(180deg,rgba(10,15,28,.4),rgba(5,7,15,.9));
  padding:64px 0 28px;margin-top:40px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-desc{font-size:14px;color:var(--ink-2);line-height:1.9;max-width:320px}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--ink-0)}
.footer-col ul{display:grid;gap:10px}
.footer-col ul a{font-size:14px;color:var(--ink-2);display:inline-block;transition:color .2s ease,transform .2s ease}
.footer-col ul a:hover{color:var(--brand);transform:translateX(2px)}
.footer-sub{display:flex;gap:10px;margin-top:14px}
.footer-sub input{
  flex:1 1 auto;min-width:0;padding:11px 14px;border-radius:var(--radius-btn);
  background:var(--panel);border:1px solid var(--card-border);color:var(--ink-0);font-size:14px;
}
.footer-sub input::placeholder{color:var(--ink-2)}
.footer-sub input:focus{outline:none;border-color:rgba(31,200,255,.7);box-shadow:0 0 0 3px rgba(31,200,255,.15)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.07);
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-2);
}
.footer-bottom nav{display:flex;gap:16px;flex-wrap:wrap}
.footer-bottom nav a:hover{color:var(--brand)}

/* ---------- responsive ---------- */
@media (max-width:1280px){
  .nav-channels a{padding:8px 10px;font-size:14px}
  .nav-search input{width:120px}
}
@media (max-width:1024px){
  .nav-channels{display:none}
  .nav-toggle{display:block}
  .nav-search{display:none}
  body.nav-open .nav-channels{
    display:flex;flex-direction:column;align-items:stretch;gap:6px;
    position:fixed;left:0;right:0;top:72px;bottom:0;z-index:55;
    padding:20px 24px 32px;
    background:rgba(8,12,22,.97);
    backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
    overflow-y:auto;
  }
  body.nav-open .nav-channels a{font-size:17px;padding:14px 16px;border-radius:14px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .cta-panel{grid-template-columns:1fr;padding:34px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .section{padding:60px 0}
}
@media (max-width:768px){
  body{font-size:16px}
  .container{padding:0 16px}
  .article-main{padding:40px 0 64px}
  .article-head{padding:24px 20px}
  .article-body{font-size:16px;line-height:1.95;margin-top:32px}
  .article-body h2{margin-top:32px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .article-foot{flex-direction:column;align-items:flex-start}
  .card-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .section{padding:48px 0}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:480px){
  .nav{height:64px;gap:12px}
  .brand-text{font-size:15.5px}
  body.nav-open .nav-channels{top:64px}
  .btn{width:100%}
  .btn-sm{width:auto}
  .field-row{flex-direction:column}
  .page-banner .container{padding-top:24px;padding-bottom:26px}
  .cta-panel{padding:26px 20px;border-radius:20px}
}

/* roulang page: category1 */
:root{
  --bg-0:#05070F;
  --bg-1:#0A0F1C;
  --bg-2:#0C141F;
  --panel:#101A2B;
  --ink-0:#F2F6FF;
  --ink-1:#B6C2D6;
  --ink-2:#74829A;
  --brand:#1FC8FF;
  --brand-deep:#0E7BFF;
  --accent:#7C5CFF;
  --warm:#FFB443;
  --ok:#3DDC97;
  --card-bg:rgba(18,26,42,.72);
  --card-border:rgba(255,255,255,.08);
  --glass-bg:rgba(23,33,51,.72);
  --glass-border:rgba(120,200,255,.18);
  --radius-card:18px;
  --radius-btn:12px;
  --radius-pill:999px;
  --radius-img:14px;
  --sh-1:0 8px 20px rgba(0,0,0,.35);
  --sh-2:0 18px 40px rgba(0,0,0,.45);
  --sh-glow:0 0 0 1px rgba(31,200,255,.45), 0 10px 30px rgba(31,200,255,.32);
  --font-cn:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Space Grotesk",Inter,ui-monospace,SFMono-Regular,Menlo,monospace;
  --max:1240px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(1100px 620px at 12% -8%, rgba(31,200,255,.10), transparent 62%),
    radial-gradient(900px 560px at 92% 4%, rgba(124,92,255,.10), transparent 60%),
    var(--bg-0);
  color:var(--ink-1);
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.95;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);background:var(--panel)}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease}
a:hover{color:var(--brand)}
h1,h2,h3,h4{color:var(--ink-0);margin:0;font-weight:700;letter-spacing:.01em}
h1{font-size:clamp(34px,5vw,56px);line-height:1.15;font-weight:800}
h2{font-size:clamp(26px,3.2vw,38px);line-height:1.25}
h3{font-size:20px;line-height:1.4}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em;padding-left:1.2em}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

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

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:linear-gradient(180deg,rgba(5,7,15,.92),rgba(5,7,15,.62));
  border-bottom:1px solid transparent;
  transition:background .28s ease,border-color .28s ease,backdrop-filter .28s ease,box-shadow .28s ease;
}
.site-header.is-scrolled{
  background:var(--glass-bg);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--glass-border);
  box-shadow:var(--sh-1);
}
.nav{display:flex;align-items:center;gap:22px;height:74px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:32px;height:32px;border-radius:10px;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  display:grid;place-items:center;position:relative;
  box-shadow:0 0 18px rgba(31,200,255,.32);
}
.brand-mark span{width:12px;height:12px;border-radius:4px;background:rgba(255,255,255,.92)}
.brand-text{color:var(--ink-0);font-weight:700;font-size:17px;letter-spacing:.02em;white-space:nowrap}
.nav-channels{display:flex;align-items:center;gap:4px;flex:1;min-width:0}
.nav-channels a{
  display:inline-block;padding:8px 13px;border-radius:var(--radius-pill);
  color:var(--ink-1);font-size:14.5px;white-space:nowrap;
  border:1px solid transparent;
}
.nav-channels a:hover{color:var(--ink-0);background:rgba(31,200,255,.08);border-color:rgba(31,200,255,.22)}
.nav-channels a.active{
  color:var(--ink-0);
  background:rgba(31,200,255,.12);
  border-color:rgba(31,200,255,.42);
  box-shadow:0 0 0 1px rgba(31,200,255,.18) inset;
}
.nav-tools{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-search{
  display:flex;align-items:center;gap:8px;
  width:216px;padding:8px 12px;
  background:var(--panel);
  border:1px solid var(--card-border);
  border-radius:var(--radius-pill);
  transition:border-color .22s ease,box-shadow .22s ease,width .25s ease;
}
.nav-search svg{width:16px;height:16px;fill:none;stroke:var(--ink-2);stroke-width:1.8;stroke-linecap:round;flex-shrink:0}
.nav-search input{width:100%;border:0;background:transparent;outline:none;font-size:14px;color:var(--ink-0)}
.nav-search input::placeholder{color:var(--ink-2)}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,200,255,.15)}
.link-btn{font-size:14.5px;color:var(--ink-1);padding:8px 10px;border-radius:var(--radius-btn)}
.link-btn:hover{color:var(--brand)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--card-border);background:var(--panel);position:relative;
}
.nav-toggle i,.nav-toggle i::before,.nav-toggle i::after{
  position:absolute;left:50%;transform:translateX(-50%);
  width:17px;height:2px;border-radius:2px;background:var(--ink-0);content:"";
  transition:transform .25s ease,opacity .25s ease;
}
.nav-toggle i{top:50%;margin-top:-1px}
.nav-toggle i::before{top:-6px}
.nav-toggle i::after{top:6px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease,filter .22s ease,background .22s ease;
}
.btn-sm{padding:10px 16px;font-size:14px;border-radius:10px}
.btn-primary{
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-deep) 52%,var(--accent) 100%);
  color:#04121C;font-weight:700;
  box-shadow:var(--sh-glow);
}
.btn-primary:hover{transform:translateY(-2px);color:#04121C;box-shadow:0 0 0 1px rgba(31,200,255,.6),0 16px 38px rgba(31,200,255,.42)}
.btn-primary:active{transform:translateY(0);filter:brightness(.95)}
.btn-ghost{
  background:transparent;border-color:rgba(255,255,255,.18);color:var(--ink-0);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0);filter:brightness(.95)}
.text-link{color:var(--brand);font-size:14.5px;border-bottom:1px solid transparent}
.text-link:hover{border-bottom-color:var(--brand)}

/* ============ 首屏 ============ */
.page-hero{position:relative;overflow:hidden;padding:72px 0 64px;border-bottom:1px solid var(--card-border)}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  opacity:.36;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(5,7,15,.94) 6%,rgba(5,7,15,.68) 48%,rgba(5,7,15,.42) 100%);
}
.page-hero .container{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);margin-bottom:22px}
.crumb a:hover{color:var(--brand)}
.crumb span.sep{color:rgba(116,130,154,.7)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:48px;align-items:center}
.hero-copy{max-width:640px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--radius-pill);
  border:1px solid rgba(31,200,255,.28);background:rgba(31,200,255,.1);
  color:var(--brand);font-size:13px;letter-spacing:.04em;margin-bottom:20px;
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 10px var(--ok)}
.hero-copy h1{margin-bottom:20px}
.hero-lead{font-size:17px;color:var(--ink-1);max-width:600px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 13px;border-radius:var(--radius-pill);
  border:1px solid rgba(31,200,255,.25);background:rgba(31,200,255,.08);
  color:var(--brand);font-size:13px;
}
.badge.warm{border-color:rgba(255,180,67,.3);background:rgba(255,180,67,.1);color:var(--warm)}
.badge.accent{border-color:rgba(124,92,255,.32);background:rgba(124,92,255,.1);color:#BBA9FF}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius-img);
  border:1px solid var(--card-border);
  box-shadow:var(--sh-2);
}
.glass-float{
  position:absolute;left:-18px;bottom:-26px;
  display:grid;grid-template-columns:repeat(3,minmax(80px,1fr));gap:18px;
  padding:18px 22px;border-radius:var(--radius-card);
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--sh-2),0 1px 0 rgba(255,255,255,.06) inset;
}
.glass-float .fig{min-width:0}
.glass-float .fig b{
  display:block;font-family:var(--font-num);font-size:24px;font-weight:700;color:var(--ink-0);
  text-shadow:0 0 18px rgba(31,200,255,.4);
}
.glass-float .fig small{display:block;font-size:11px;color:var(--ink-2);line-height:1.5;margin-top:2px}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section.alt{background:var(--bg-1);border-top:1px solid var(--card-border);border-bottom:1px solid var(--card-border)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{margin-bottom:14px}
.section-head p{color:var(--ink-1);margin:0}
.section-head.row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none}

/* ============ 正文 + 粘性目录 ============ */
.doc-grid{display:grid;grid-template-columns:minmax(0,1fr) 296px;gap:56px;align-items:start}
.doc-main{max-width:780px;min-width:0}
.doc-block{padding:34px 0;border-top:1px solid var(--card-border)}
.doc-block:first-child{border-top:0;padding-top:0}
.doc-block h2{position:relative;padding-left:18px;margin-bottom:22px;font-size:clamp(23px,2.6vw,30px)}
.doc-block h2::before{
  content:"";position:absolute;left:0;top:.24em;bottom:.24em;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--brand),var(--accent));
}
.doc-block h3{margin:26px 0 12px;font-size:18px}
.doc-block p{color:var(--ink-1)}
.doc-figure{margin:26px 0;border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--card-border);box-shadow:var(--sh-2)}
.doc-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0}
.doc-figure figcaption{font-size:13px;color:var(--ink-2);padding:12px 16px;background:var(--panel);border-top:1px solid var(--card-border);text-align:center}
.doc-block figure.align-right{float:none}

.tip-list{list-style:none;padding:0;margin:0 0 6px}
.tip-list li{
  position:relative;padding:12px 16px 12px 40px;margin-bottom:10px;
  background:var(--card-bg);border:1px solid var(--card-border);
  border-radius:12px;font-size:15.5px;color:var(--ink-1);
}
.tip-list li::before{
  content:"";position:absolute;left:16px;top:20px;
  width:8px;height:8px;border-radius:50%;
  background:var(--brand);box-shadow:0 0 10px rgba(31,200,255,.65);
}
.tip-list li b{color:var(--ink-0)}

.msg-table{width:100%;border-collapse:collapse;font-size:15px;display:block;overflow-x:auto;white-space:nowrap}
.msg-table th{
  text-align:left;font-size:13px;color:var(--ink-2);font-weight:600;
  padding:0 18px 12px 0;border-bottom:1px solid var(--card-border);
}
.msg-table td{padding:14px 18px 14px 0;border-bottom:1px solid var(--card-border);vertical-align:top;white-space:normal;min-width:180px}
.msg-table td:first-child{color:var(--ink-0);font-weight:600}
.msg-table tr:last-child td{border-bottom:0}

.toc-wrap{position:sticky;top:104px;display:flex;flex-direction:column;gap:20px}
.toc{
  padding:22px 22px 8px;border-radius:var(--radius-card);
  background:var(--card-bg);border:1px solid var(--card-border);box-shadow:var(--sh-1);
}
.toc h3{font-size:14px;letter-spacing:.06em;color:var(--ink-2);text-transform:uppercase;margin-bottom:14px}
.toc ul{list-style:none;padding:0;margin:0}
.toc li{margin-bottom:2px}
.toc a{
  display:flex;align-items:center;gap:10px;
  padding:9px 10px;border-radius:10px;font-size:14.5px;color:var(--ink-1);
  border-left:1px solid rgba(255,255,255,.06);
}
.toc a::before{
  content:"";width:6px;height:6px;border-radius:50%;background:rgba(116,130,154,.6);flex-shrink:0;
  transition:background .2s ease,box-shadow .2s ease;
}
.toc a:hover{background:rgba(31,200,255,.07);color:var(--ink-0)}
.toc a.is-current{background:rgba(31,200,255,.1);color:var(--ink-0)}
.toc a.is-current::before{background:var(--brand);box-shadow:0 0 10px rgba(31,200,255,.8)}
.toc-side{
  padding:20px 22px;border-radius:var(--radius-card);
  background:linear-gradient(160deg,rgba(31,200,255,.1),rgba(124,92,255,.08));
  border:1px solid var(--glass-border);
}
.toc-side h4{font-size:15px;margin-bottom:8px}
.toc-side p{font-size:13.5px;color:var(--ink-1);margin-bottom:14px;line-height:1.8}
.toc-side .kv{display:flex;justify-content:space-between;font-size:13px;color:var(--ink-2);padding:7px 0;border-bottom:1px dashed rgba(255,255,255,.07)}
.toc-side .kv:last-of-type{border-bottom:0}
.toc-side .kv b{color:var(--ink-0);font-family:var(--font-num);font-weight:600}

/* ============ 校验清单 ============ */
.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.check-card{
  display:flex;gap:14px;padding:22px;
  background:var(--card-bg);border:1px solid var(--card-border);
  border-radius:var(--radius-card);box-shadow:var(--sh-1);
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.check-card:hover{transform:translateY(-4px);border-color:rgba(31,200,255,.35);box-shadow:var(--sh-2)}
.check-icon{
  width:34px;height:34px;flex-shrink:0;border-radius:10px;display:grid;place-items:center;
  background:rgba(61,220,151,.12);border:1px solid rgba(61,220,151,.35);color:var(--ok);font-size:15px;font-weight:700;
}
.check-card h3{font-size:16.5px;margin-bottom:6px}
.check-card p{font-size:14.5px;color:var(--ink-1);margin:0;line-height:1.8}

/* ============ FAQ ============ */
.faq{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--card-bg);border:1px solid var(--card-border);
  border-radius:var(--radius-card);overflow:hidden;
  transition:border-color .24s ease,box-shadow .24s ease;
}
.faq-item.is-open{border-color:rgba(31,200,255,.35);box-shadow:var(--sh-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;text-align:left;font-size:17px;font-weight:700;color:var(--ink-0);
}
.faq-q .mark{position:relative;width:18px;height:18px;flex-shrink:0}
.faq-q .mark::before,.faq-q .mark::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;
  transform:translate(-50%,-50%);transition:opacity .24s ease,transform .24s ease;
}
.faq-q .mark::before{width:14px;height:2px}
.faq-q .mark::after{width:2px;height:14px}
.faq-item.is-open .faq-q .mark::after{opacity:0;transform:translate(-50%,-50%) rotate(90deg)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s ease}
.faq-item.is-open .faq-a{grid-template-rows:1fr}
.faq-a>div{overflow:hidden}
.faq-a p{
  margin:0;padding:0 22px 22px 40px;font-size:15px;line-height:1.85;color:var(--ink-1);
  position:relative;
}
.faq-a p::before{
  content:"";position:absolute;left:22px;top:6px;bottom:24px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--brand),transparent);
}

/* ============ CTA ============ */
.cta-panel{
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:40px;align-items:center;
  padding:46px;border-radius:22px;
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--sh-2),0 1px 0 rgba(255,255,255,.06) inset;
  position:relative;overflow:hidden;
}
.cta-panel::before{
  content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,200,255,.24),transparent 68%);
}
.cta-panel h2{margin-bottom:14px}
.cta-panel p{margin:0;color:var(--ink-1);font-size:15.5px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.cta-form{position:relative;z-index:2;display:flex;flex-direction:column;gap:12px}
.cta-form input{
  width:100%;padding:14px 16px;border-radius:14px;
  background:var(--panel);border:1px solid var(--card-border);
  color:var(--ink-0);font-size:15px;outline:none;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.cta-form input::placeholder{color:var(--ink-2)}
.cta-form input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,200,255,.15)}
.cta-form small{font-size:12.5px;color:var(--ink-2);line-height:1.7}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:0;padding:66px 0 28px;
  background:var(--bg-1);border-top:1px solid var(--card-border);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-desc{font-size:14px;color:var(--ink-2);line-height:1.85;max-width:320px;margin:0}
.footer-col h4{font-size:14px;letter-spacing:.06em;color:var(--ink-0);margin-bottom:16px}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14.5px;color:var(--ink-1);display:inline-block}
.footer-col a:hover{color:var(--brand);transform:translateX(2px)}
.footer-sub{display:flex;gap:8px;margin-top:12px}
.footer-sub input{
  flex:1;min-width:0;padding:10px 14px;border-radius:10px;
  background:var(--panel);border:1px solid var(--card-border);
  color:var(--ink-0);font-size:14px;outline:none;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.footer-sub input::placeholder{color:var(--ink-2)}
.footer-sub input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,200,255,.15)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--card-border);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:var(--ink-2);
}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:18px}
.footer-bottom a{color:var(--ink-2)}
.footer-bottom a:hover{color:var(--brand)}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .doc-grid{grid-template-columns:minmax(0,1fr) 268px;gap:40px}
  .nav-search{width:170px}
}
@media (max-width:1024px){
  .nav-channels a{padding:8px 10px;font-size:14px}
  .nav-search{width:44px;padding:9px 13px;overflow:hidden}
  .nav-search input{opacity:0}
  .nav-search:focus-within{width:190px}
  .nav-search:focus-within input{opacity:1}
  .link-btn{display:none}
  .hero-grid{grid-template-columns:1fr;gap:56px}
  .hero-visual{max-width:640px}
  .glass-float{left:0}
  .doc-grid{grid-template-columns:1fr}
  .toc-wrap{position:static;order:-1;flex-direction:row;flex-wrap:wrap}
  .toc{flex:1 1 320px}
  .toc-side{flex:1 1 260px}
  .cta-panel{grid-template-columns:1fr;gap:28px;padding:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  body{font-size:16px;line-height:1.9}
  .container{padding:0 16px}
  .nav{height:66px;gap:14px}
  .nav-channels{
    position:fixed;left:0;right:0;top:66px;bottom:0;
    flex-direction:column;align-items:stretch;gap:6px;
    padding:22px 20px 36px;
    background:rgba(6,10,20,.98);
    backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
    border-top:1px solid var(--glass-border);
    overflow-y:auto;
    transform:translateY(-10px);opacity:0;pointer-events:none;
    transition:opacity .25s ease,transform .25s ease;
  }
  body.nav-open .nav-channels{opacity:1;transform:none;pointer-events:auto}
  .nav-channels a{font-size:17px;font-weight:600;padding:14px 16px;border-radius:14px;border-color:var(--card-border)}
  .nav-toggle{display:block}
  body.nav-open .nav-toggle i{background:transparent}
  body.nav-open .nav-toggle i::before{transform:translate(-50%,6px) rotate(45deg)}
  body.nav-open .nav-toggle i::after{transform:translate(-50%,-6px) rotate(-45deg)}
  .nav-toggle i::before,.nav-toggle i::after{transform:translate(-50%,0)}
  .nav-toggle i::before{top:-6px}
  .nav-toggle i::after{top:6px}
  .nav-toggle i::before,.nav-toggle i::after{transition:transform .25s ease}
  .page-hero{padding:44px 0 40px}
  .glass-float{position:static;margin-top:16px;grid-template-columns:repeat(3,1fr);gap:12px}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .section-head.row{flex-direction:column;align-items:flex-start}
  .check-grid{grid-template-columns:1fr}
  .toc-wrap{flex-direction:column}
  .cta-panel{padding:26px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  h1{font-size:clamp(28px,8vw,36px)}
  h2{font-size:clamp(22px,6.4vw,28px)}
  .hero-actions .btn{width:100%}
  .glass-float{grid-template-columns:1fr 1fr}
  .doc-block{padding:26px 0}
  .faq-q{font-size:16px;padding:17px 18px}
  .faq-a p{padding:0 18px 18px 32px}
  .faq-a p::before{left:16px}
  .msg-table{font-size:14px}
}

/* roulang page: category2 */
:root{
  --bg-0:#05070F; --bg-1:#0A0F1C; --bg-2:#0C141F; --panel:#101A2B;
  --ink-0:#F2F6FF; --ink-1:#B6C2D6; --ink-2:#74829A;
  --brand:#1FC8FF; --brand-deep:#0E7BFF; --accent:#7C5CFF; --warm:#FFB443; --ok:#3DDC97;
  --card-bg:rgba(18,26,42,.72); --card-border:rgba(255,255,255,.08);
  --glass-bg:rgba(23,33,51,.72); --glass-border:rgba(120,200,255,.18);
  --radius-card:18px; --radius-btn:12px; --radius-pill:999px; --radius-img:14px;
  --sh-1:0 8px 20px rgba(0,0,0,.35); --sh-2:0 18px 40px rgba(0,0,0,.45);
  --sh-glow:0 0 0 1px rgba(31,200,255,.45),0 10px 30px rgba(31,200,255,.32);
  --font-zh:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Space Grotesk",Inter,ui-monospace,SFMono-Regular,Menlo,monospace;
  --gap:24px; --sec:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg-0);color:var(--ink-1);
  font-family:var(--font-zh);font-size:16.5px;line-height:1.95;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--radius-img)}
a{color:inherit;text-decoration:none;transition:color .2s ease,transform .2s ease}
button,input{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4{margin:0;color:var(--ink-0);font-weight:700;letter-spacing:.2px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{max-width:1240px;margin:0 auto;padding:0 24px;width:100%}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(5,7,15,.74);
  border-bottom:1px solid rgba(255,255,255,.06);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:background .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.site-header.scrolled{
  background:var(--glass-bg);
  border-bottom-color:var(--glass-border);
  box-shadow:var(--sh-1);
}
.nav{max-width:1240px;margin:0 auto;padding:0 24px;height:68px;display:flex;align-items:center;gap:18px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:32px;height:32px;border-radius:10px;position:relative;flex:none;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  box-shadow:0 6px 18px rgba(31,200,255,.28);
}
.brand-mark span{
  position:absolute;inset:9px;border-radius:5px;background:rgba(5,7,15,.82);
}
.brand-mark span::after{
  content:"";position:absolute;inset:4px;border-radius:3px;
  background:linear-gradient(135deg,var(--brand),var(--accent));
}
.brand-text{color:var(--ink-0);font-weight:800;font-size:16px;letter-spacing:.3px;white-space:nowrap}
.nav-channels{display:flex;align-items:center;gap:2px;margin-left:8px}
.nav-channels a{
  padding:8px 13px;border-radius:var(--radius-pill);font-size:14.5px;color:var(--ink-1);
  white-space:nowrap;border:1px solid transparent;transition:.2s ease;
}
.nav-channels a:hover{color:var(--ink-0);background:rgba(255,255,255,.06)}
.nav-channels a.active{
  color:#fff;border-color:rgba(31,200,255,.45);
  background:linear-gradient(135deg,rgba(31,200,255,.20),rgba(124,92,255,.20));
  box-shadow:0 0 0 1px rgba(31,200,255,.18),0 6px 18px rgba(31,200,255,.18);
}
.nav-tools{margin-left:auto;display:flex;align-items:center;gap:10px}
.nav-search{
  display:flex;align-items:center;gap:8px;padding:7px 14px;border-radius:var(--radius-pill);
  background:var(--panel);border:1px solid var(--card-border);transition:.2s ease;
}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,200,255,.15)}
.nav-search svg{width:15px;height:15px;fill:none;stroke:var(--ink-2);stroke-width:2;stroke-linecap:round;flex:none}
.nav-search input{background:none;border:0;outline:none;width:130px;font-size:14px;color:var(--ink-0)}
.nav-search input::placeholder{color:var(--ink-2)}
.link-btn{font-size:14.5px;color:var(--ink-1);padding:8px 6px;border-radius:8px}
.link-btn:hover{color:var(--brand)}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;
  border:1px solid var(--card-border);background:var(--panel);position:relative;flex:none;
}
.nav-toggle i,.nav-toggle i::before,.nav-toggle i::after{
  position:absolute;left:50%;transform:translateX(-50%);
  width:16px;height:2px;border-radius:2px;background:var(--ink-0);transition:.25s ease;
}
.nav-toggle i{top:19px}
.nav-toggle i::before,.nav-toggle i::after{content:"";left:0;transform:none}
.nav-toggle i::before{top:-5px}
.nav-toggle i::after{top:5px}

/* 抽屉菜单 */
.drawer{
  position:fixed;inset:0;z-index:90;background:rgba(5,7,15,.97);
  backdrop-filter:blur(10px);padding:88px 24px 40px;
  display:flex;flex-direction:column;gap:6px;
  opacity:0;visibility:hidden;transform:translateY(-8px);transition:.28s ease;
}
.drawer.open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer a{
  font-size:19px;font-weight:700;color:var(--ink-0);
  padding:16px 6px;border-bottom:1px solid rgba(255,255,255,.06);
}
.drawer a.active{color:var(--brand)}
.drawer .drawer-cta{margin-top:auto;border:0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--radius-btn);font-size:15px;font-weight:700;
  border:1px solid transparent;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,filter .2s ease;
}
.btn-sm{padding:9px 18px;font-size:14px;border-radius:10px}
.btn-primary{
  color:#04121C;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  box-shadow:var(--sh-glow);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(31,200,255,.55),0 14px 34px rgba(31,200,255,.42)}
.btn-primary:active{transform:translateY(0);filter:brightness(.95)}
.btn-ghost{
  color:var(--ink-0);background:transparent;border-color:rgba(255,255,255,.18);
}
.btn-ghost:hover{border-color:var(--brand);color:#fff;transform:translateY(-2px)}
.btn-text{color:var(--brand);font-weight:700;font-size:15px;display:inline-flex;align-items:center;gap:6px}
.btn-text:hover{text-decoration:underline;text-underline-offset:4px}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--radius-pill);font-size:13px;
  color:var(--brand);background:rgba(31,200,255,.12);
  border:1px solid rgba(31,200,255,.25);white-space:nowrap;
}
.badge-warm{color:var(--warm);background:rgba(255,180,67,.12);border-color:rgba(255,180,67,.28)}
.dot{width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 8px rgba(61,220,151,.7);flex:none}

/* ---------- 页面首屏 ---------- */
.page-hero{
  position:relative;padding:56px 0 72px;overflow:hidden;
  background-image:linear-gradient(135deg,rgba(5,7,15,.94) 0%,rgba(5,7,15,.78) 46%,rgba(5,7,15,.42) 100%),
    url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center right;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.page-hero::after{
  content:"";position:absolute;left:50%;bottom:-160px;transform:translateX(-50%);
  width:760px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,200,255,.20),transparent 68%);
  pointer-events:none;
}
.crumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13px;color:var(--ink-2);margin-bottom:26px}
.crumb a:hover{color:var(--brand)}
.crumb span.sep{color:rgba(255,255,255,.22)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:end;position:relative;z-index:2}
.page-hero h1{
  font-size:clamp(32px,4.6vw,52px);line-height:1.15;font-weight:800;letter-spacing:.5px;
}
.page-hero h1 em{font-style:normal;background:linear-gradient(120deg,var(--brand),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{margin-top:22px;max-width:720px;font-size:17px;color:var(--ink-1)}
.hero-tags{margin-top:26px;display:flex;flex-wrap:wrap;gap:10px}
.hero-actions{margin-top:30px;display:flex;flex-wrap:wrap;gap:12px}
.glass-panel{
  background:var(--glass-bg);border:1px solid var(--glass-border);
  border-radius:var(--radius-card);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:var(--sh-2);padding:26px;
  position:relative;overflow:hidden;
}
.glass-panel::before{
  content:"";position:absolute;inset:0 0 auto 0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.5),transparent);
}
.glass-title{font-size:14px;color:var(--ink-2);letter-spacing:1px;margin-bottom:18px}
.mini-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.mini-stat b{display:block;font-family:var(--font-num);font-size:30px;color:var(--ink-0);font-weight:700;line-height:1.2}
.mini-stat span{font-size:11px;color:var(--ink-2);letter-spacing:.6px;display:block;margin-top:6px;line-height:1.6}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sec) 0}
.section.alt{background:var(--bg-1);border-top:1px solid rgba(255,255,255,.05);border-bottom:1px solid rgba(255,255,255,.05)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap}
.sec-head h2{font-size:clamp(26px,3.2vw,38px);line-height:1.25}
.sec-head p{margin-top:14px;color:var(--ink-2);font-size:15px;max-width:640px}
.eyebrow{font-size:13px;letter-spacing:2px;color:var(--brand);text-transform:uppercase;margin-bottom:12px;font-family:var(--font-num)}

/* ---------- 非对称瀑布网格 ---------- */
.masonry{display:grid;grid-template-columns:repeat(12,1fr);gap:var(--gap)}
.mcard{
  grid-column:span 4;background:var(--card-bg);border:1px solid var(--card-border);
  border-radius:var(--radius-card);box-shadow:var(--sh-2);overflow:hidden;
  display:flex;flex-direction:column;transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.mcard:hover{transform:translateY(-4px);border-color:rgba(31,200,255,.35);box-shadow:0 22px 46px rgba(0,0,0,.5)}
.mcard.wide{grid-column:span 8;flex-direction:row;align-items:stretch}
.mcard.wide .m-media{width:46%;flex:none;aspect-ratio:auto;min-height:280px}
.mcard.wide .m-body{flex:1;padding:30px 32px;display:flex;flex-direction:column;justify-content:center}
.m-media{position:relative;overflow:hidden;aspect-ratio:16/9;background:var(--panel)}
.m-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .4s ease}
.mcard:hover .m-media img{transform:scale(1.04)}
.m-media::after{
  content:"";position:absolute;inset:auto 0 0 0;height:58%;
  background:linear-gradient(to top,rgba(5,7,15,.92),transparent);
}
.m-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:12px;flex:1}
.m-body h3{font-size:20px;line-height:1.45}
.m-body p{font-size:15px;color:var(--ink-1);line-height:1.85}
.m-card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:6px}
.m-card-foot .go{color:var(--brand);font-size:14px;font-weight:700}
.mcard.tall{grid-column:span 4}
.mcard.tall .m-media{aspect-ratio:4/3}

/* ---------- 路径流程 ---------- */
.path-flow{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);position:relative}
.path-flow::before{
  content:"";position:absolute;top:26px;left:6%;right:6%;height:1px;
  background:linear-gradient(90deg,rgba(31,200,255,.05),rgba(31,200,255,.5),rgba(124,92,255,.35),rgba(31,200,255,.05));
}
.path-node{position:relative;padding-top:66px}
.path-node::before{
  content:"";position:absolute;top:18px;left:0;width:16px;height:16px;border-radius:50%;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  box-shadow:0 0 0 5px rgba(31,200,255,.14),0 0 18px rgba(31,200,255,.5);
}
.path-node h3{font-size:17px;margin-bottom:10px}
.path-node p{font-size:14.5px;color:var(--ink-2);line-height:1.8}
.path-node .step-no{font-family:var(--font-num);font-size:12px;color:var(--brand);letter-spacing:1.6px;display:block;margin-bottom:8px}

/* ---------- 数据横带 ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--card-bg);border:1px solid var(--card-border);
  border-radius:var(--radius-card);box-shadow:var(--sh-2);overflow:hidden;
}
.stat-cell{padding:32px 28px;border-right:1px solid rgba(255,255,255,.06)}
.stat-cell:last-child{border-right:0}
.stat-cell b{display:block;font-family:var(--font-num);font-size:34px;color:var(--ink-0);font-weight:700;line-height:1.15}
.stat-cell b i{font-style:normal;font-size:16px;color:var(--brand);margin-left:4px}
.stat-cell span{display:block;margin-top:10px;font-size:13.5px;color:var(--ink-2);line-height:1.75}

/* ---------- 任务清单 ---------- */
.checklist{display:grid;grid-template-columns:repeat(2,1fr);gap:18px 28px}
.check-item{
  display:flex;gap:14px;align-items:flex-start;padding:20px 22px;
  background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-card);
  transition:border-color .24s ease,transform .24s ease;
}
.check-item:hover{border-color:rgba(31,200,255,.32);transform:translateY(-3px)}
.check-icon{
  width:26px;height:26px;border-radius:8px;flex:none;margin-top:4px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(61,220,151,.14);border:1px solid rgba(61,220,151,.35);
  color:var(--ok);font-size:12px;
}
.check-item h3{font-size:16px;margin-bottom:6px}
.check-item p{font-size:14.5px;color:var(--ink-2);line-height:1.8}

/* ---------- 图文叙事 ---------- */
.story{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.story + .story{margin-top:72px}
.story.rev .story-media{order:2}
.story-media{position:relative;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--card-border);box-shadow:var(--sh-2)}
.story-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0}
.story h2{font-size:clamp(24px,2.8vw,32px);margin-bottom:18px;line-height:1.3}
.story p + p{margin-top:14px}
.story p{font-size:16px;color:var(--ink-1)}
.story-list{margin-top:22px;display:grid;gap:10px}
.story-list li{display:flex;gap:10px;font-size:15px;color:var(--ink-1)}
.story-list li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);margin-top:11px;flex:none;box-shadow:0 0 10px rgba(31,200,255,.6)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;display:grid;gap:14px}
.faq-item{
  background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-card);
  overflow:hidden;transition:border-color .24s ease;
}
.faq-item.open{border-color:rgba(31,200,255,.38)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;font-size:17px;font-weight:700;color:var(--ink-0);text-align:left;
}
.faq-q .mark{
  width:26px;height:26px;flex:none;border-radius:8px;display:flex;align-items:center;justify-content:center;
  color:var(--brand);border:1px solid rgba(31,200,255,.3);background:rgba(31,200,255,.1);
  font-size:15px;line-height:1;transition:.25s ease;
}
.faq-item.open .faq-q .mark{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-a-inner{
  padding:0 24px 22px 27px;border-left:3px solid var(--brand);
  margin-left:24px;font-size:15px;color:var(--ink-1);line-height:1.9;
}

/* ---------- CTA 面板 ---------- */
.cta-panel{
  position:relative;overflow:hidden;border-radius:var(--radius-card);
  background:var(--glass-bg);border:1px solid var(--glass-border);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:var(--sh-2);padding:48px;
  display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;
}
.cta-panel::after{
  content:"";position:absolute;right:-120px;top:-120px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(124,92,255,.28),transparent 66%);pointer-events:none;
}
.cta-panel h2{font-size:clamp(24px,2.8vw,32px);line-height:1.3;position:relative;z-index:2}
.cta-panel p{margin-top:16px;font-size:15.5px;color:var(--ink-1);position:relative;z-index:2}
.sub-form{display:flex;gap:10px;position:relative;z-index:2}
.sub-form input{
  flex:1;padding:14px 16px;border-radius:var(--radius-btn);
  background:var(--panel);border:1px solid var(--card-border);color:var(--ink-0);outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.sub-form input::placeholder{color:var(--ink-2)}
.sub-form input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,200,255,.15)}
.form-note{margin-top:14px;font-size:13px;color:var(--ink-2);display:flex;align-items:center;gap:8px;position:relative;z-index:2}
.form-note input{width:15px;height:15px;accent-color:var(--brand)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-1);border-top:1px solid rgba(255,255,255,.06);padding:72px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-desc{font-size:14.5px;color:var(--ink-2);line-height:1.85;max-width:320px}
.footer-col h4{font-size:15px;margin-bottom:18px;color:var(--ink-0)}
.footer-col ul{display:grid;gap:11px}
.footer-col ul a{font-size:14.5px;color:var(--ink-2);display:inline-block;transition:color .2s ease,transform .2s ease}
.footer-col ul a:hover{color:var(--brand);transform:translateX(2px)}
.footer-sub{display:flex;gap:8px;margin-top:14px}
.footer-sub input{
  flex:1;min-width:0;padding:10px 13px;border-radius:10px;background:var(--panel);
  border:1px solid var(--card-border);color:var(--ink-0);outline:none;font-size:14px;
}
.footer-sub input::placeholder{color:var(--ink-2)}
.footer-sub input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,200,255,.15)}
.footer-bottom{
  margin-top:56px;padding-top:24px;border-top:1px solid rgba(255,255,255,.06);
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  font-size:13.5px;color:var(--ink-2);
}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:18px}
.footer-bottom nav a:hover{color:var(--brand)}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .nav-channels a{padding:8px 10px;font-size:14px}
  .nav-search input{width:104px}
}
@media (max-width:1100px){
  :root{--sec:72px}
  .nav-channels{display:none}
  .nav-search{display:none}
  .nav-toggle{display:block}
  .nav-tools .link-btn,.nav-tools .btn-sm{display:none}
}
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .mcard.wide{grid-column:span 12;flex-direction:column}
  .mcard.wide .m-media{width:100%;min-height:0;aspect-ratio:16/9}
  .mcard,.mcard.tall{grid-column:span 6}
  .path-flow{grid-template-columns:repeat(2,1fr);gap:34px}
  .path-flow::before{display:none}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .stat-cell:nth-child(2){border-right:0}
  .stat-cell:nth-child(1),.stat-cell:nth-child(2){border-bottom:1px solid rgba(255,255,255,.06)}
  .story{grid-template-columns:1fr;gap:30px}
  .story.rev .story-media{order:0}
  .cta-panel{grid-template-columns:1fr;gap:30px;padding:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:768px){
  :root{--sec:56px}
  .container,.nav{padding:0 18px}
  body{font-size:16px}
  .masonry{gap:18px}
  .mcard,.mcard.tall{grid-column:span 12}
  .checklist{grid-template-columns:1fr}
  .page-hero{padding:40px 0 56px}
}
@media (max-width:520px){
  :root{--sec:48px}
  .mini-stats{grid-template-columns:1fr 1fr}
  .stat-strip{grid-template-columns:1fr}
  .stat-cell{border-right:0;border-bottom:1px solid rgba(255,255,255,.06)}
  .stat-cell:last-child{border-bottom:0}
  .path-flow{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .sub-form{flex-direction:column}
  .sub-form .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .footer-bottom nav{gap:12px}
  .cta-panel{padding:26px 20px}
  .m-body{padding:20px}
  .mcard.wide .m-body{padding:22px}
}

/* roulang page: category3 */
:root{
  --bg-0:#05070F;
  --bg-1:#0A0F1C;
  --bg-2:#0C141F;
  --panel:#101A2B;
  --ink-0:#F2F6FF;
  --ink-1:#B6C2D6;
  --ink-2:#74829A;
  --brand:#1FC8FF;
  --brand-deep:#0E7BFF;
  --accent:#7C5CFF;
  --warm:#FFB443;
  --ok:#3DDC97;
  --card-bg:rgba(18,26,42,.72);
  --card-border:rgba(255,255,255,.08);
  --glass-bg:rgba(23,33,51,.72);
  --glass-border:rgba(120,200,255,.18);
  --radius-card:18px;
  --radius-btn:12px;
  --radius-pill:999px;
  --radius-img:14px;
  --sh-1:0 8px 20px rgba(0,0,0,.35);
  --sh-2:0 18px 40px rgba(0,0,0,.45);
  --sh-glow:0 0 0 1px rgba(31,200,255,.45),0 10px 30px rgba(31,200,255,.32);
  --font-cn:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Space Grotesk",Inter,ui-monospace,SFMono-Regular,Menlo,monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--ink-1);
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.95;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;background:var(--panel);}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input{font:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--ink-0);font-weight:700;line-height:1.3;}
p{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

.container{max-width:1240px;margin:0 auto;padding:0 24px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(5,7,15,.7);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.06);
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-header.scrolled{
  background:var(--glass-bg);
  border-bottom-color:var(--glass-border);
  box-shadow:var(--sh-1);
}
.nav{display:flex;align-items:center;gap:20px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:32px;height:32px;border-radius:10px;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  display:grid;place-items:center;
  box-shadow:0 6px 18px rgba(31,200,255,.35);
}
.brand-mark>span{width:12px;height:12px;border-radius:4px;background:var(--bg-0);box-shadow:inset 0 0 0 2px rgba(255,255,255,.85);}
.brand-text{font-weight:800;color:var(--ink-0);font-size:16px;letter-spacing:.4px;white-space:nowrap;}
.nav-channels{display:flex;align-items:center;gap:4px;margin-left:6px;}
.nav-channels a{
  padding:9px 12px;border-radius:10px;font-size:14.5px;color:var(--ink-1);
  white-space:nowrap;transition:color .2s ease,background .2s ease,box-shadow .2s ease;
}
.nav-channels a:hover{color:var(--ink-0);background:rgba(31,200,255,.08);}
.nav-channels a.active{
  color:var(--brand);background:rgba(31,200,255,.12);
  box-shadow:inset 0 0 0 1px rgba(31,200,255,.28);
}
.nav-tools{margin-left:auto;display:flex;align-items:center;gap:12px;}
.nav-search{
  display:flex;align-items:center;gap:8px;width:210px;
  background:var(--panel);border:1px solid var(--card-border);
  border-radius:var(--radius-pill);padding:8px 14px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search svg{width:16px;height:16px;flex:0 0 auto;fill:none;stroke:var(--ink-2);stroke-width:2;stroke-linecap:round;}
.nav-search input{width:100%;background:none;border:0;outline:none;color:var(--ink-0);font-size:14px;}
.nav-search input::placeholder{color:var(--ink-2);}
.nav-search:focus-within{border-color:rgba(31,200,255,.6);box-shadow:0 0 0 3px rgba(31,200,255,.14);}
.link-btn{font-size:14.5px;color:var(--ink-1);padding:8px 10px;border-radius:8px;transition:color .2s ease,background .2s ease;}
.link-btn:hover{color:var(--brand);background:rgba(31,200,255,.08);}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--card-border);place-items:center;}
.nav-toggle i{display:block;position:relative;width:18px;height:2px;border-radius:2px;background:var(--ink-0);}
.nav-toggle i::before,.nav-toggle i::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--ink-0);}
.nav-toggle i::before{top:-6px;}
.nav-toggle i::after{top:6px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;line-height:1;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease,filter .2s ease;
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand-deep),var(--accent));
  color:#fff;box-shadow:var(--sh-glow);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(31,200,255,.6),0 14px 34px rgba(31,200,255,.45);}
.btn-primary:active{transform:translateY(0);filter:brightness(.95);}
.btn-ghost{background:transparent;border:1px solid rgba(255,255,255,.18);color:var(--ink-0);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:10px;}

/* ============ 通用徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--radius-pill);
  font-size:13px;color:var(--brand);
  background:rgba(31,200,255,.12);
  border:1px solid rgba(31,200,255,.3);
}
.eyebrow{
  display:inline-block;font-size:13px;letter-spacing:2px;
  color:var(--brand);margin-bottom:14px;
}
.dot{width:8px;height:8px;border-radius:50%;flex:0 0 auto;}
.dot-ok{background:var(--ok);box-shadow:0 0 10px rgba(61,220,151,.7);}
.dot-warm{background:var(--warm);box-shadow:0 0 10px rgba(255,180,67,.7);}

/* ============ 面包屑 ============ */
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);margin-bottom:22px;flex-wrap:wrap;}
.crumb a:hover{color:var(--brand);}
.crumb .current{color:var(--ink-1);}

/* ============ 首屏 ============ */
.page-hero{
  position:relative;
  padding:56px 0 76px;
  background-image:
    linear-gradient(120deg,rgba(5,7,15,.95) 0%,rgba(5,7,15,.82) 44%,rgba(5,7,15,.45) 100%),
    url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:48px;align-items:center;}
.hero-copy h1{font-size:clamp(34px,5vw,52px);line-height:1.15;font-weight:800;max-width:640px;}
.hero-copy .lead{max-width:600px;margin-top:20px;font-size:17px;color:var(--ink-1);}
.hero-actions{display:flex;gap:12px;margin-top:30px;flex-wrap:wrap;}
.hero-badges{display:flex;gap:10px;margin-top:28px;flex-wrap:wrap;}
.hero-media{position:relative;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--card-border);box-shadow:var(--sh-2);}
.hero-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;transition:transform .5s ease;}
.hero-media:hover img{transform:scale(1.03);}
.hero-float{
  position:absolute;left:16px;right:16px;bottom:16px;
  display:grid;grid-template-columns:repeat(3,1fr);gap:10px;
  padding:16px;border-radius:16px;
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.12);
}
.hero-float b{display:block;font-family:var(--font-num);font-size:24px;color:var(--ink-0);line-height:1.2;}
.hero-float span{font-size:11px;color:var(--ink-2);letter-spacing:.5px;}

/* ============ 板块骨架 ============ */
.section{padding:88px 0;}
.section-alt{background:var(--bg-1);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(26px,3.2vw,36px);}
.section-head p{color:var(--ink-2);font-size:14px;max-width:560px;margin-top:10px;}
.more-link{color:var(--brand);font-size:14.5px;font-weight:600;transition:transform .2s ease,opacity .2s ease;}
.more-link:hover{transform:translateX(3px);opacity:.85;}

/* ============ 数据带 ============ */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--card-border);border:1px solid var(--card-border);
  border-radius:var(--radius-card);overflow:hidden;
}
.stat{background:var(--bg-2);padding:26px 24px;transition:background .25s ease;}
.stat:hover{background:var(--panel);}
.stat b{display:block;font-family:var(--font-num);font-size:32px;color:var(--ink-0);line-height:1.2;}
.stat span{font-size:13px;color:var(--ink-2);}

/* ============ 时间轴 ============ */
.timeline{position:relative;padding:8px 0 4px;}
.timeline::before{
  content:"";position:absolute;top:0;bottom:0;left:50%;width:2px;
  transform:translateX(-50%);
  background:linear-gradient(180deg,rgba(31,200,255,.55),rgba(124,92,255,.38),rgba(31,200,255,0));
}
.tl-item{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:56px;margin-bottom:30px;}
.tl-item:last-child{margin-bottom:0;}
.tl-node{
  position:absolute;left:50%;top:38px;transform:translate(-50%,-50%);
  width:14px;height:14px;border-radius:50%;background:var(--brand);
  box-shadow:0 0 0 5px rgba(31,200,255,.14),0 0 18px rgba(31,200,255,.65);z-index:2;
}
.tl-item:nth-child(odd) .tl-card{grid-column:1;}
.tl-item:nth-child(even) .tl-card{grid-column:2;}
.tl-card{
  background:var(--card-bg);border:1px solid var(--card-border);
  border-radius:var(--radius-card);padding:26px 26px 24px;
  box-shadow:var(--sh-2);
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.tl-card:hover{transform:translateY(-4px);border-color:rgba(31,200,255,.35);box-shadow:var(--sh-2),0 0 0 1px rgba(31,200,255,.18);}
.tl-card h3{font-size:20px;margin-bottom:10px;}
.tl-card p{font-size:15.5px;}
.tl-step{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-num);font-size:12px;letter-spacing:1px;
  color:var(--brand);background:rgba(31,200,255,.1);
  border:1px solid rgba(31,200,255,.26);
  border-radius:var(--radius-pill);padding:4px 12px;margin-bottom:14px;
}
.tl-tip{margin-top:14px;padding-top:14px;border-top:1px dashed rgba(255,255,255,.1);font-size:14px;color:var(--ink-2);}

/* ============ 图文分栏 ============ */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center;}
.split h2{font-size:clamp(26px,3vw,34px);margin-bottom:16px;}
.split p{margin-bottom:16px;}
.media{border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--card-border);box-shadow:var(--sh-2);}
.media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11;transition:transform .45s ease;}
.media:hover img{transform:scale(1.04);}

.check-list{display:grid;gap:12px;margin-top:24px;}
.check-list li{
  display:flex;gap:14px;align-items:flex-start;
  padding:16px 18px;border-radius:14px;
  background:var(--card-bg);border:1px solid var(--card-border);
  transition:transform .22s ease,border-color .22s ease;
}
.check-list li:hover{transform:translateX(4px);border-color:rgba(31,200,255,.32);}
.check-list h4{font-size:15.5px;margin-bottom:4px;}
.check-list p{font-size:14.5px;color:var(--ink-1);margin:0;}

/* ============ 状态清单 ============ */
.state-list{display:grid;gap:12px;}
.state{
  display:grid;grid-template-columns:auto 1fr auto;gap:18px;align-items:center;
  padding:18px 22px;border-radius:14px;
  background:var(--bg-2);border:1px solid var(--card-border);
  transition:border-color .22s ease,background .22s ease;
}
.state:hover{border-color:rgba(31,200,255,.3);background:var(--panel);}
.state strong{display:block;color:var(--ink-0);font-size:16px;font-weight:700;}
.state small{display:block;font-size:14px;color:var(--ink-2);margin-top:2px;}
.pill{
  font-size:12.5px;padding:5px 12px;border-radius:var(--radius-pill);
  border:1px solid;white-space:nowrap;
}
.pill-warm{color:var(--warm);border-color:rgba(255,180,67,.4);background:rgba(255,180,67,.1);}
.pill-ok{color:var(--ok);border-color:rgba(61,220,151,.4);background:rgba(61,220,151,.1);}

/* ============ FAQ ============ */
.faq{display:grid;gap:12px;}
.faq-item{
  background:var(--bg-2);border:1px solid var(--card-border);
  border-radius:14px;overflow:hidden;
  transition:border-color .25s ease;
}
.faq-item.open{border-color:rgba(31,200,255,.32);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 22px;text-align:left;font-size:17px;font-weight:700;color:var(--ink-0);
  box-shadow:inset 0 0 0 0 var(--brand);
  transition:box-shadow .25s ease,color .2s ease;
}
.faq-q:hover{color:var(--brand);}
.faq-item.open .faq-q{box-shadow:inset 3px 0 0 0 var(--brand);}
.faq-icon{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  display:grid;place-items:center;color:var(--brand);font-size:16px;line-height:1;
  border:1px solid rgba(31,200,255,.35);
}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease,padding .32s ease;padding:0 22px;}
.faq-item.open .faq-a{max-height:340px;padding:0 22px 20px;}
.faq-a p{font-size:15px;color:var(--ink-1);}

/* ============ CTA 面板 ============ */
.cta-panel{
  position:relative;overflow:hidden;
  display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;
  padding:44px;border-radius:24px;
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  box-shadow:var(--sh-2),inset 0 1px 0 rgba(255,255,255,.1);
}
.cta-panel::after{
  content:"";position:absolute;right:-120px;top:-120px;width:320px;height:320px;
  background:radial-gradient(circle,rgba(31,200,255,.28),transparent 68%);
  pointer-events:none;
}
.cta-panel h2{font-size:clamp(24px,2.8vw,32px);margin-bottom:14px;}
.cta-form{display:grid;gap:14px;position:relative;z-index:1;}
.field{display:grid;gap:8px;}
.field label{font-size:13.5px;color:var(--ink-2);}
.field input{
  width:100%;padding:14px 16px;border-radius:var(--radius-btn);
  background:var(--panel);border:1px solid var(--card-border);
  color:var(--ink-0);outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field input::placeholder{color:var(--ink-2);}
.field input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,200,255,.15);}
.consent{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--ink-2);}
.consent input{margin-top:4px;accent-color:var(--brand);}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-1);border-top:1px solid rgba(255,255,255,.07);padding:64px 0 28px;margin-top:20px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-desc{font-size:14px;color:var(--ink-2);max-width:340px;}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--ink-0);}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:var(--ink-1);transition:color .2s ease,transform .2s ease;display:inline-block;}
.footer-col a:hover{color:var(--brand);transform:translateX(-2px);}
.footer-sub{display:flex;gap:10px;margin-top:14px;}
.footer-sub input{
  flex:1;min-width:0;padding:10px 14px;border-radius:10px;
  background:var(--panel);border:1px solid var(--card-border);
  color:var(--ink-0);outline:none;font-size:14px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.footer-sub input::placeholder{color:var(--ink-2);}
.footer-sub input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,200,255,.15);}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.07);
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-2);
}
.footer-bottom nav{display:flex;gap:16px;flex-wrap:wrap;}
.footer-bottom a:hover{color:var(--brand);}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .nav-channels a{padding:9px 10px;font-size:14px;}
  .nav-search{width:170px;}
}
@media (max-width:1024px){
  .nav-channels{
    position:fixed;left:0;right:0;top:72px;
    flex-direction:column;align-items:stretch;gap:6px;
    margin:0;padding:18px 24px 26px;
    max-height:calc(100vh - 72px);overflow:auto;
    background:rgba(10,15,28,.98);
    border-bottom:1px solid var(--glass-border);
    backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
    opacity:0;visibility:hidden;transform:translateY(-12px);
    transition:opacity .25s ease,transform .25s ease,visibility .25s ease;
  }
  .nav.open .nav-channels{opacity:1;visibility:visible;transform:translateY(0);}
  .nav-channels a{font-size:17px;padding:14px 12px;border-radius:12px;}
  .nav-search{display:none;}
  .nav-toggle{display:grid;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-copy h1{max-width:none;}
  .split{grid-template-columns:1fr;gap:32px;}
  .cta-panel{grid-template-columns:1fr;gap:30px;padding:34px;}
  .section{padding:68px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  .timeline::before{left:9px;}
  .tl-item{grid-template-columns:1fr;gap:0;margin-bottom:22px;padding-left:38px;}
  .tl-item:nth-child(odd) .tl-card,.tl-item:nth-child(even) .tl-card{grid-column:1;}
  .tl-node{left:9px;top:34px;transform:translate(-50%,-50%);}
  .stats{grid-template-columns:1fr 1fr;}
  .state{grid-template-columns:auto 1fr;row-gap:10px;}
  .state .pill{grid-column:2;justify-self:start;}
  .section{padding:54px 0;}
  .section-head{margin-bottom:28px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  body{font-size:16px;}
  .page-hero{padding:36px 0 52px;}
  .hero-float{grid-template-columns:1fr;gap:6px;padding:14px;}
  .hero-float b{font-size:20px;}
  .stats{grid-template-columns:1fr;}
  .btn{width:100%;}
  .hero-actions{flex-direction:column;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-sub{flex-direction:column;}
  .footer-sub .btn{width:100%;}
  .cta-panel{padding:24px 18px;}
  .nav-tools .link-btn{display:none;}
  .nav-tools .btn-sm{font-size:13px;padding:9px 12px;}
  .faq-q{font-size:15.5px;padding:16px 16px;}
  .faq-a{padding:0 16px;}
  .faq-item.open .faq-a{padding:0 16px 18px;}
}

/* roulang page: category4 */
:root{
  --bg-0:#05070F;
  --bg-1:#0A0F1C;
  --bg-2:#0C141F;
  --panel:#101A2B;
  --ink-0:#F2F6FF;
  --ink-1:#B6C2D6;
  --ink-2:#74829A;
  --brand:#1FC8FF;
  --brand-deep:#0E7BFF;
  --accent:#7C5CFF;
  --warm:#FFB443;
  --ok:#3DDC97;
  --card-bg:rgba(18,26,42,.72);
  --card-border:rgba(255,255,255,.08);
  --glass-bg:rgba(23,33,51,.72);
  --glass-border:rgba(120,200,255,.18);
  --radius-card:18px;
  --radius-btn:12px;
  --radius-pill:999px;
  --radius-img:14px;
  --sh-1:0 8px 20px rgba(0,0,0,.35);
  --sh-2:0 18px 40px rgba(0,0,0,.45);
  --sh-glow:0 0 0 1px rgba(31,200,255,.45),0 10px 30px rgba(31,200,255,.32);
  --font-cn:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Space Grotesk",Inter,ui-monospace,SFMono-Regular,Menlo,monospace;
  --sp-1:56px;
  --sp-2:72px;
  --sp-3:96px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(1200px 600px at 15% -10%,rgba(31,200,255,.10),transparent 60%),
    radial-gradient(900px 500px at 90% 0%,rgba(124,92,255,.10),transparent 55%),
    var(--bg-0);
  color:var(--ink-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.95;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;background:var(--panel);border-radius:var(--radius-img)}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink-0);font-weight:700;letter-spacing:.2px}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(5,7,15,.72);
  border-bottom:1px solid rgba(255,255,255,.05);
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease,backdrop-filter .3s ease;
}
.site-header.is-scrolled{
  background:var(--glass-bg);
  border-bottom-color:var(--glass-border);
  box-shadow:var(--sh-1);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.nav{
  display:flex;align-items:center;gap:20px;
  height:68px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:32px;height:32px;flex:0 0 32px;border-radius:10px;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  display:grid;place-items:center;
  box-shadow:0 6px 18px rgba(31,200,255,.28);
}
.brand-mark span{width:12px;height:12px;border-radius:4px;background:var(--bg-0);opacity:.86}
.brand-text{color:var(--ink-0);font-weight:700;font-size:16px;white-space:nowrap}
.nav-channels{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1 1 auto;min-width:0}
.nav-channels a{
  position:relative;
  padding:9px 13px;border-radius:var(--radius-pill);
  font-size:14.5px;color:var(--ink-1);white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-channels a:hover{color:var(--ink-0);background:rgba(255,255,255,.05)}
.nav-channels a.active{
  color:#04121C;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  box-shadow:0 6px 18px rgba(31,200,255,.30);
  font-weight:600;
}
.nav-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-search{
  display:flex;align-items:center;gap:8px;
  background:var(--panel);
  border:1px solid rgba(255,255,255,.09);
  border-radius:var(--radius-pill);
  padding:7px 14px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,200,255,.15)}
.nav-search svg{width:16px;height:16px;stroke:var(--ink-2);fill:none;stroke-width:1.8;stroke-linecap:round}
.nav-search input{
  width:150px;border:0;background:transparent;color:var(--ink-0);font-size:14px;outline:none;
}
.nav-search input::placeholder{color:var(--ink-2)}
.link-btn{font-size:14.5px;color:var(--ink-1);padding:8px 4px;transition:color .2s ease}
.link-btn:hover{color:var(--brand)}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.12);background:transparent;cursor:pointer;
  align-items:center;justify-content:center;
}
.nav-toggle i,.nav-toggle i::before,.nav-toggle i::after{
  content:"";display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-0);
  transition:transform .25s ease,opacity .25s ease;
}
.nav-toggle i{position:relative}
.nav-toggle i::before{position:absolute;top:-6px;left:0}
.nav-toggle i::after{position:absolute;top:6px;left:0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,border-color .2s ease,background .2s ease,filter .2s ease;
}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-block{width:100%}
.btn-primary{
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-deep) 55%,var(--accent) 100%);
  color:#04121C;box-shadow:var(--sh-glow);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(31,200,255,.6),0 16px 36px rgba(31,200,255,.42)}
.btn-primary:active{transform:translateY(0);filter:brightness(.95)}
.btn-ghost{
  background:transparent;color:var(--ink-0);
  border-color:rgba(255,255,255,.18);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}

/* ---------- 通用 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;color:var(--brand);
  text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--brand)}
.section{padding:var(--sp-3) 0}
.section-tight{padding:var(--sp-2) 0}
.section-alt{background:var(--bg-2);border-top:1px solid rgba(255,255,255,.04);border-bottom:1px solid rgba(255,255,255,.04)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{font-size:clamp(26px,3.2vw,38px);line-height:1.25;margin-bottom:14px}
.section-head p{margin:0;color:var(--ink-1)}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--radius-pill);
  font-size:13px;color:var(--brand);
  background:rgba(31,200,255,.12);
  border:1px solid rgba(31,200,255,.25);
}
.badge-warm{color:var(--warm);background:rgba(255,180,67,.10);border-color:rgba(255,180,67,.28)}
.badge-ok{color:var(--ok);background:rgba(61,220,151,.10);border-color:rgba(61,220,151,.28)}
.dot{width:7px;height:7px;border-radius:50%;background:var(--ok);display:inline-block}
.card{
  background:var(--card-bg);
  border:1px solid var(--card-border);
  border-radius:var(--radius-card);
  box-shadow:var(--sh-2);
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.card:hover{transform:translateY(-4px);border-color:rgba(31,200,255,.35)}
.glass{
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-card);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--sh-2);
}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);padding:22px 0 0}
.crumb a{color:var(--ink-2);transition:color .2s ease}
.crumb a:hover{color:var(--brand)}
.crumb span.sep{color:rgba(255,255,255,.22)}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid rgba(255,255,255,.05);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center right;
  opacity:.42;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(5,7,15,.96) 0%,rgba(5,7,15,.82) 42%,rgba(5,7,15,.35) 100%);
}
.page-hero .container{position:relative;z-index:2}
.hero-inner{padding:56px 0 72px;max-width:760px}
.hero-inner h1{
  font-size:clamp(34px,5vw,56px);
  line-height:1.15;font-weight:800;margin:8px 0 20px;
}
.hero-inner h1 em{
  font-style:normal;
  background:linear-gradient(120deg,var(--brand),var(--accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{font-size:17px;color:var(--ink-1);max-width:640px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:34px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px}

/* ---------- 数据带 ---------- */
.stat-band{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:rgba(255,255,255,.06);
  border:1px solid var(--card-border);
  border-radius:var(--radius-card);
  overflow:hidden;
}
.stat-band .stat{
  background:var(--bg-1);
  padding:26px 22px;
}
.stat .stat-num{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:32px;font-weight:700;color:var(--ink-0);line-height:1.2;
}
.stat .stat-num small{font-size:16px;color:var(--brand);margin-left:2px}
.stat .stat-label{margin-top:6px;font-size:13px;color:var(--ink-2);line-height:1.7}

/* ---------- 规格表 ---------- */
.table-wrap{
  border:1px solid var(--card-border);
  border-radius:var(--radius-card);
  background:var(--card-bg);
  box-shadow:var(--sh-2);
  overflow:hidden;
}
.spec-table{width:100%;border-collapse:collapse;font-size:15px}
.spec-table thead th{
  text-align:left;padding:18px 20px;
  font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--ink-2);
  background:rgba(255,255,255,.03);
  border-bottom:1px solid rgba(255,255,255,.08);
  white-space:nowrap;
}
.spec-table tbody td{
  padding:18px 20px;
  border-bottom:1px solid rgba(255,255,255,.06);
  color:var(--ink-1);
  vertical-align:top;
}
.spec-table tbody tr:last-child td{border-bottom:0}
.spec-table tbody tr{transition:background .2s ease}
.spec-table tbody tr:hover{background:rgba(31,200,255,.05)}
.spec-table td.platform{color:var(--ink-0);font-weight:600;white-space:nowrap}
.spec-table td .tag{
  display:inline-block;padding:2px 9px;border-radius:var(--radius-pill);
  font-size:12.5px;margin-top:6px;
  color:var(--brand);background:rgba(31,200,255,.10);border:1px solid rgba(31,200,255,.24);
}
.table-note{margin-top:16px;font-size:13px;color:var(--ink-2)}

/* ---------- 图文段 ---------- */
.split{
  display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;
}
.split.reverse{grid-template-columns:.95fr 1.05fr}
.split.reverse .split-media{order:2}
.split-media img{
  width:100%;height:340px;object-fit:cover;
  border-radius:var(--radius-img);
  border:1px solid var(--card-border);
  box-shadow:var(--sh-2);
}
.split-body h3{font-size:22px;line-height:1.45;margin-bottom:14px}
.split-body p{margin-bottom:.9em}
.check-list{margin-top:18px;display:grid;gap:10px}
.check-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:15px;color:var(--ink-1);
}
.check-list li::before{
  content:"";flex:0 0 16px;width:16px;height:16px;margin-top:7px;border-radius:5px;
  background:rgba(31,200,255,.16);border:1px solid rgba(31,200,255,.42);
  box-shadow:inset 0 0 0 3px rgba(5,7,15,.9);
}

/* ---------- 问答块 ---------- */
.qa-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.qa-item{padding:26px 24px}
.qa-item h3{font-size:18px;line-height:1.5;margin-bottom:10px}
.qa-item p{margin:0;font-size:15px;color:var(--ink-1)}

/* ---------- 排查清单 ---------- */
.steps{display:grid;gap:18px}
.step{
  display:grid;grid-template-columns:56px 1fr;gap:20px;align-items:flex-start;
  padding:22px 24px;
}
.step-idx{
  width:44px;height:44px;border-radius:14px;
  display:grid;place-items:center;
  font-family:var(--font-num);font-size:18px;font-weight:700;color:var(--brand);
  background:rgba(31,200,255,.10);
  border:1px solid rgba(31,200,255,.28);
}
.step h3{font-size:17px;margin-bottom:6px}
.step p{margin:0;font-size:15px;color:var(--ink-1)}

/* ---------- CTA ---------- */
.cta-panel{
  display:grid;grid-template-columns:1.1fr .9fr;gap:48px;
  padding:48px 44px;
  align-items:start;
}
.cta-copy h2{font-size:clamp(24px,2.8vw,32px);line-height:1.3;margin-bottom:14px}
.cta-copy p{max-width:520px;margin-bottom:20px}
.cta-points{display:grid;gap:10px}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-1)}
.cta-points li::before{
  content:"";flex:0 0 8px;width:8px;height:8px;margin-top:9px;border-radius:50%;
  background:var(--brand);box-shadow:0 0 10px rgba(31,200,255,.7);
}
.cta-form{display:grid;gap:14px}
.cta-form label{display:grid;gap:8px;font-size:13px;color:var(--ink-2)}
.cta-form input,.cta-form select{
  width:100%;padding:14px 16px;border-radius:var(--radius-btn);
  background:var(--panel);border:1px solid rgba(255,255,255,.10);
  color:var(--ink-0);outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.cta-form input::placeholder{color:var(--ink-2)}
.cta-form input:focus,.cta-form select:focus{
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(31,200,255,.15);
}
.form-tip{font-size:13px;color:var(--ink-2);margin:0}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:0;
  background:var(--bg-1);
  border-top:1px solid rgba(255,255,255,.06);
  padding:64px 0 26px;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-desc{font-size:14px;color:var(--ink-2);max-width:330px;line-height:1.85;margin:0}
.footer-col h4{font-size:14px;letter-spacing:.04em;color:var(--ink-0);margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col ul a{font-size:14px;color:var(--ink-2);transition:color .2s ease,transform .2s ease;display:inline-block}
.footer-col ul a:hover{color:var(--brand);transform:translateX(2px)}
.footer-sub{display:flex;gap:8px;margin-top:12px}
.footer-sub input{
  flex:1 1 auto;min-width:0;padding:10px 14px;border-radius:var(--radius-btn);
  background:var(--panel);border:1px solid rgba(255,255,255,.10);color:var(--ink-0);outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.footer-sub input::placeholder{color:var(--ink-2)}
.footer-sub input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,200,255,.15)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  padding-top:22px;font-size:13px;color:var(--ink-2);
}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:16px}
.footer-bottom nav a{color:var(--ink-2);transition:color .2s ease}
.footer-bottom nav a:hover{color:var(--brand)}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .nav-search input{width:110px}
  .nav-channels a{padding:8px 10px;font-size:14px}
}
@media (max-width:1024px){
  :root{--sp-3:72px;--sp-2:56px}
  .nav-search{display:none}
  .nav-channels{
    position:fixed;top:68px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:2px;
    padding:18px 24px 26px;
    background:rgba(8,12,22,.98);
    border-bottom:1px solid var(--glass-border);
    box-shadow:var(--sh-2);
    transform:translateY(-12px);opacity:0;visibility:hidden;
    transition:transform .26s ease,opacity .26s ease,visibility .26s;
    max-height:calc(100vh - 68px);overflow-y:auto;
  }
  .nav-channels.open{transform:translateY(0);opacity:1;visibility:visible}
  .nav-channels a{padding:14px 12px;border-radius:var(--radius-btn);font-size:17px}
  .nav-channels a.active{background:linear-gradient(135deg,var(--brand),var(--brand-deep));color:#04121C}
  .nav-toggle{display:flex}
  .split,.split.reverse{grid-template-columns:1fr;gap:28px}
  .split.reverse .split-media{order:0}
  .cta-panel{grid-template-columns:1fr;gap:32px;padding:36px 28px}
  .stat-band{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .qa-grid{grid-template-columns:1fr}
}
@media (max-width:768px){
  body{font-size:15.5px;line-height:1.9}
  .container{padding:0 16px}
  :root{--sp-3:56px;--sp-2:48px}
  .hero-inner{padding:40px 0 52px}
  .hero-actions .btn{flex:1 1 auto}
  .spec-table thead{display:none}
  .spec-table,.spec-table tbody,.spec-table tr,.spec-table td{display:block;width:100%}
  .table-wrap{border:0;background:transparent;box-shadow:none;overflow:visible}
  .spec-table tr{
    background:var(--card-bg);
    border:1px solid var(--card-border);
    border-radius:var(--radius-card);
    box-shadow:var(--sh-1);
    padding:8px 18px;margin-bottom:14px;
  }
  .spec-table tbody td{
    display:flex;justify-content:space-between;gap:16px;
    padding:12px 0;border-bottom:1px dashed rgba(255,255,255,.08);
    font-size:14.5px;
  }
  .spec-table tbody td:last-child{border-bottom:0}
  .spec-table tbody td::before{
    content:attr(data-label);
    flex:0 0 88px;
    color:var(--ink-2);font-size:13px;line-height:1.9;
  }
  .spec-table td.platform{color:var(--ink-0);font-size:16px}
  .spec-table td.platform::before{content:"";flex:0}
  .spec-table td.platform span{color:var(--ink-2);font-size:13px;font-weight:400;display:block}
  .split-media img{height:240px}
  .step{grid-template-columns:44px 1fr;gap:14px;padding:18px 18px}
  .step-idx{width:38px;height:38px;border-radius:12px;font-size:16px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .brand-text{font-size:15px}
  .link-btn{display:none}
  .stat-band{grid-template-columns:1fr}
  .hero-inner h1{font-size:clamp(28px,8vw,36px)}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .btn-block{width:100%}
  .footer-sub{flex-direction:column}
  .footer-sub .btn{width:100%}
}

/* roulang page: category5 */
:root{
  --bg-0:#05070F;
  --bg-1:#0A0F1C;
  --bg-2:#0C141F;
  --panel:#101A2B;
  --ink-0:#F2F6FF;
  --ink-1:#B6C2D6;
  --ink-2:#74829A;
  --brand:#1FC8FF;
  --brand-deep:#0E7BFF;
  --accent:#7C5CFF;
  --warm:#FFB443;
  --ok:#3DDC97;
  --card-bg:rgba(18,26,42,.72);
  --card-border:rgba(255,255,255,.08);
  --glass-bg:rgba(23,33,51,.72);
  --glass-border:rgba(120,200,255,.18);
  --radius-card:18px;
  --radius-btn:12px;
  --radius-pill:999px;
  --radius-img:14px;
  --sh-1:0 8px 20px rgba(0,0,0,.35);
  --sh-2:0 18px 40px rgba(0,0,0,.45);
  --sh-glow:0 0 0 1px rgba(31,200,255,.45),0 10px 30px rgba(31,200,255,.32);
  --font-cn:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Space Grotesk",Inter,ui-monospace,SFMono-Regular,Menlo,monospace;
  --space-1:56px;
  --space-2:72px;
  --space-3:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--ink-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.95;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;background:var(--panel);border-radius:var(--radius-img)}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink-0);line-height:1.25;font-weight:700}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
::selection{background:rgba(31,200,255,.28);color:#fff}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--radius-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease,background .24s ease,opacity .2s ease;
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-deep) 55%,var(--accent) 100%);
  color:#fff;box-shadow:var(--sh-glow);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(31,200,255,.6),0 16px 38px rgba(31,200,255,.42)}
.btn-primary:active{transform:translateY(0);filter:brightness(.95)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.18);color:var(--ink-0)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-sm{padding:9px 18px;font-size:14px;border-radius:10px}
.link-btn{color:var(--ink-1);font-size:14px;font-weight:500;transition:color .2s ease}
.link-btn:hover{color:var(--brand)}
.link-more{color:var(--brand);font-size:14px;font-weight:600;border-bottom:1px solid transparent;transition:border-color .2s ease}
.link-more:hover{border-color:var(--brand)}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--radius-pill);
  background:rgba(31,200,255,.12);border:1px solid rgba(31,200,255,.25);
  color:var(--brand);font-size:13px;line-height:1.6;
}
.badge-warm{background:rgba(255,180,67,.12);border-color:rgba(255,180,67,.3);color:var(--warm)}
.badge-accent{background:rgba(124,92,255,.14);border-color:rgba(124,92,255,.3);color:#B7A5FF}
.dot{width:7px;height:7px;border-radius:50%;background:var(--ok);display:inline-block}
.dot-warm{background:var(--warm)}

/* ============ 导航 ============ */
.site-header{position:fixed;top:0;left:0;right:0;z-index:60;padding:14px 0;transition:background .3s ease,padding .3s ease,box-shadow .3s ease,border-color .3s ease;border-bottom:1px solid transparent}
.site-header.is-scrolled{
  background:var(--glass-bg);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--glass-border);
  box-shadow:0 10px 30px rgba(0,0,0,.4);
  padding:8px 0;
}
.nav{display:flex;align-items:center;gap:22px;width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:32px;height:32px;border-radius:10px;flex:none;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 6px 18px rgba(31,200,255,.35);
}
.brand-mark span{width:12px;height:12px;border-radius:4px;background:rgba(5,7,15,.85);display:block}
.brand-text{color:var(--ink-0);font-weight:700;font-size:16px;letter-spacing:.2px}
.nav-channels{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-channels a{
  padding:8px 13px;border-radius:var(--radius-pill);
  font-size:14px;color:var(--ink-1);
  transition:color .2s ease,background .2s ease;
}
.nav-channels a:hover{color:var(--ink-0);background:rgba(255,255,255,.06)}
.nav-channels a.active{
  color:#fff;background:rgba(31,200,255,.14);
  box-shadow:inset 0 0 0 1px rgba(31,200,255,.4),0 6px 18px rgba(31,200,255,.18);
}
.nav-tools{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-search{
  display:flex;align-items:center;gap:8px;
  background:var(--panel);border:1px solid var(--card-border);
  border-radius:var(--radius-pill);padding:7px 14px;width:210px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,200,255,.15)}
.nav-search svg{width:16px;height:16px;fill:none;stroke:var(--ink-2);stroke-width:2;stroke-linecap:round;flex:none}
.nav-search input{background:transparent;border:0;outline:0;width:100%;font-size:13px;color:var(--ink-0)}
.nav-search input::placeholder{color:var(--ink-2)}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:11px;flex:none;
  background:var(--panel);border:1px solid var(--card-border);cursor:pointer;
  align-items:center;justify-content:center;
}
.nav-toggle i{position:relative;display:block;width:17px;height:2px;border-radius:2px;background:var(--ink-0);transition:background .2s ease}
.nav-toggle i::before,.nav-toggle i::after{content:"";position:absolute;left:0;width:17px;height:2px;border-radius:2px;background:var(--ink-0);transition:transform .25s ease}
.nav-toggle i::before{top:-6px}
.nav-toggle i::after{top:6px}
.nav.is-open .nav-toggle i{background:transparent}
.nav.is-open .nav-toggle i::before{transform:translateY(6px) rotate(45deg)}
.nav.is-open .nav-toggle i::after{transform:translateY(-6px) rotate(-45deg)}

/* ============ 页面头部 ============ */
main{padding-top:82px}
.breadcrumb{display:flex;align-items:center;gap:9px;font-size:13px;color:var(--ink-2);padding:22px 0 0}
.breadcrumb a{color:var(--ink-2);transition:color .2s ease}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb span.sep{color:rgba(116,130,154,.6)}

.page-hero{position:relative;overflow:hidden;border-bottom:1px solid rgba(255,255,255,.05)}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  opacity:.34;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(5,7,15,.94) 0%,rgba(5,7,15,.78) 42%,rgba(5,7,15,.42) 100%);
}
.hero-inner{position:relative;z-index:2;padding:64px 0 84px;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:56px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;margin-bottom:18px}
.hero-title{font-size:clamp(34px,5vw,56px);line-height:1.15;font-weight:800;letter-spacing:-.5px}
.hero-title em{font-style:normal;background:linear-gradient(120deg,var(--brand),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{max-width:640px;margin:20px 0 0;font-size:17px;line-height:1.95;color:var(--ink-1)}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-stats{
  background:var(--glass-bg);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border:1px solid var(--glass-border);border-radius:var(--radius-card);
  box-shadow:var(--sh-2);padding:26px 24px;
  display:grid;grid-template-columns:repeat(3,1fr);gap:14px;
}
.hero-stats::before{content:"";position:absolute;inset:0}
.stat{position:relative;padding-left:2px}
.stat + .stat{border-left:1px solid rgba(255,255,255,.08);padding-left:16px}
.stat-num{display:block;font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:30px;font-weight:700;color:var(--ink-0);line-height:1.2;text-shadow:0 0 22px rgba(31,200,255,.45)}
.stat-label{display:block;margin-top:6px;font-size:11px;line-height:1.6;color:var(--ink-2);letter-spacing:.4px}

/* ============ 通用板块 ============ */
.section{padding:var(--space-3) 0}
.section.alt{background:var(--bg-2)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-title{font-size:clamp(26px,3.2vw,38px);line-height:1.25}
.section-sub{margin-top:12px;max-width:720px;color:var(--ink-1);font-size:16px;line-height:1.95}
.section-head .link-more{flex:none;padding-bottom:4px}

/* ============ 三条要点条 ============ */
.strip{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.strip-item{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-card);
  padding:20px 22px;box-shadow:var(--sh-1);
  transition:border-color .24s ease,transform .24s ease;
}
.strip-item:hover{border-color:rgba(31,200,255,.35);transform:translateY(-3px)}
.strip-icon{
  width:38px;height:38px;flex:none;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(31,200,255,.1);border:1px solid rgba(31,200,255,.24);
}
.strip-icon svg{width:18px;height:18px;fill:none;stroke:var(--brand);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.strip-item h3{font-size:16px;margin-bottom:4px}
.strip-item p{margin:0;font-size:14px;line-height:1.8;color:var(--ink-2)}

/* ============ FAQ + 表单双栏 ============ */
.faq-grid{display:grid;grid-template-columns:minmax(0,1.62fr) minmax(0,1fr);gap:32px;align-items:start}
.faq-item{
  background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-card);
  box-shadow:var(--sh-1);margin-bottom:12px;overflow:hidden;
  transition:border-color .24s ease,box-shadow .24s ease;
}
.faq-item:hover{border-color:rgba(31,200,255,.28)}
.faq-item.open{border-color:rgba(31,200,255,.4);box-shadow:var(--sh-2)}
.faq-q{
  width:100%;background:transparent;border:0;cursor:pointer;text-align:left;
  display:flex;align-items:center;gap:16px;
  padding:19px 22px;font-size:17px;font-weight:700;color:var(--ink-0);
}
.faq-q .q-mark{width:3px;height:20px;flex:none;border-radius:3px;background:rgba(255,255,255,.12);transition:background .24s ease}
.faq-item.open .faq-q .q-mark{background:var(--brand);box-shadow:0 0 12px rgba(31,200,255,.7)}
.faq-q .q-arrow{
  margin-left:auto;flex:none;width:24px;height:24px;border-radius:50%;
  border:1px solid rgba(31,200,255,.35);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:600;line-height:1;transition:transform .25s ease,background .25s ease;
}
.faq-item.open .faq-q .q-arrow{background:rgba(31,200,255,.16);transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s ease}
.faq-item.open .faq-a{max-height:520px}
.faq-a-inner{padding:0 22px 22px 41px;border-left:3px solid var(--brand);margin-left:22px;font-size:15px;line-height:1.85;color:var(--ink-1)}
.faq-a-inner p:last-child{margin-bottom:0}
.faq-a-inner ul{margin:10px 0 0;display:grid;gap:8px}
.faq-a-inner ul li{position:relative;padding-left:16px}
.faq-a-inner ul li::before{content:"";position:absolute;left:0;top:12px;width:6px;height:6px;border-radius:50%;background:var(--brand);opacity:.85}

/* 表单 */
.form-card{
  position:sticky;top:104px;
  background:var(--glass-bg);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border:1px solid var(--glass-border);border-radius:var(--radius-card);
  box-shadow:var(--sh-2);padding:26px 24px;
}
.form-card h3{font-size:19px;margin-bottom:8px}
.form-card .form-lead{font-size:14px;line-height:1.8;color:var(--ink-2);margin-bottom:20px}
.field{margin-bottom:15px}
.field label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:12px;
  background:var(--panel);border:1px solid var(--card-border);
  font-size:14px;color:var(--ink-0);outline:0;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:96px;resize:vertical;line-height:1.75}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-2)}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,200,255,.15);
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--ink-2) 50%),linear-gradient(135deg,var(--ink-2) 50%,transparent 50%);background-position:calc(100% - 20px) 50%,calc(100% - 14px) 50%;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.field.error input,.field.error select,.field.error textarea{border-color:var(--warm);box-shadow:0 0 0 3px rgba(255,180,67,.14)}
.field-error{display:none;margin-top:6px;font-size:13px;color:var(--warm)}
.field.error .field-error{display:block}
.checkbox{display:flex;gap:9px;align-items:flex-start;font-size:13px;line-height:1.7;color:var(--ink-2);margin:6px 0 16px}
.checkbox input{width:16px;height:16px;margin-top:3px;accent-color:var(--brand);flex:none}
.form-card .btn{width:100%}
.form-note{margin-top:14px;font-size:12px;line-height:1.7;color:var(--ink-2);text-align:center}

/* ============ 安全自查 · 路线节点 ============ */
.route{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.92fr);gap:44px;align-items:center}
.route-visual{position:relative;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--card-border);box-shadow:var(--sh-2)}
.route-visual img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.route-visual .visual-tag{position:absolute;left:16px;bottom:16px;display:flex;gap:8px;flex-wrap:wrap}
.route-list{position:relative;padding-left:30px}
.route-list::before{content:"";position:absolute;left:9px;top:8px;bottom:8px;width:2px;background:linear-gradient(180deg,rgba(31,200,255,.5),rgba(124,92,255,.25),transparent)}
.check-item{position:relative;padding:0 0 22px 0}
.check-item:last-child{padding-bottom:0}
.check-item::before{
  content:"";position:absolute;left:-30px;top:8px;width:20px;height:20px;border-radius:50%;
  background:var(--bg-0);border:2px solid var(--brand);box-shadow:0 0 14px rgba(31,200,255,.5);
}
.check-item h3{font-size:16px;margin-bottom:5px}
.check-item p{margin:0;font-size:14px;line-height:1.85;color:var(--ink-2)}

/* ============ 处理流程 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step}
.step{
  position:relative;padding:24px 22px;
  background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-card);
  box-shadow:var(--sh-1);transition:border-color .24s ease,transform .24s ease;
}
.step:hover{border-color:rgba(124,92,255,.4);transform:translateY(-4px)}
.step-num{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:13px;font-weight:700;color:var(--brand);letter-spacing:1px;
}
.step h3{font-size:16px;margin:10px 0 6px}
.step p{margin:0;font-size:14px;line-height:1.8;color:var(--ink-2)}
.step::after{
  content:"";position:absolute;right:-10px;top:50%;width:20px;height:2px;
  background:linear-gradient(90deg,rgba(31,200,255,.6),transparent);
}
.step:last-child::after{display:none}

/* ============ 相关条目 ============ */
.link-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.link-card{
  display:flex;flex-direction:column;
  background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--sh-2);
  transition:border-color .24s ease,transform .24s ease;
}
.link-card:hover{border-color:rgba(31,200,255,.35);transform:translateY(-4px)}
.link-card figure{margin:0;overflow:hidden;aspect-ratio:16/9;background:var(--panel)}
.link-card figure img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .3s ease}
.link-card:hover figure img{transform:scale(1.04)}
.link-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.link-body h3{font-size:17px}
.link-body p{margin:0;font-size:14px;line-height:1.85;color:var(--ink-2);flex:1}
.link-body .go{font-size:13px;color:var(--brand);font-weight:600}

/* ============ CTA 面板 ============ */
.cta-panel{
  background:var(--glass-bg);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border:1px solid var(--glass-border);border-radius:24px;
  box-shadow:var(--sh-2);padding:44px 40px;
  display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:32px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-panel::before{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,200,255,.25),transparent 68%);
}
.cta-panel h2{font-size:clamp(24px,2.8vw,32px);position:relative}
.cta-panel p{margin:12px 0 0;max-width:640px;font-size:15px;line-height:1.9;color:var(--ink-1);position:relative}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end;position:relative}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-1);border-top:1px solid rgba(255,255,255,.06);padding:64px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.6fr) repeat(3,minmax(0,1fr));gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-desc{margin:0;max-width:360px;font-size:14px;line-height:1.9;color:var(--ink-2)}
.footer-col h4{font-size:15px;margin-bottom:14px;color:var(--ink-0)}
.footer-col ul{display:grid;gap:10px}
.footer-col ul a{font-size:14px;color:var(--ink-2);transition:color .2s ease,transform .2s ease;display:inline-block}
.footer-col ul a:hover{color:var(--brand);transform:translateX(2px)}
.footer-sub{display:flex;gap:8px;margin-top:6px}
.footer-sub input{
  flex:1;min-width:0;padding:10px 13px;border-radius:10px;
  background:var(--panel);border:1px solid var(--card-border);font-size:14px;color:var(--ink-0);outline:0;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.footer-sub input::placeholder{color:var(--ink-2)}
.footer-sub input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,200,255,.15)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.06);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--ink-2);
}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:16px}
.footer-bottom nav a{color:var(--ink-2);transition:color .2s ease}
.footer-bottom nav a:hover{color:var(--brand)}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .hero-inner{gap:40px}
  .nav-search{width:170px}
}
@media (max-width:1024px){
  :root{--space-1:48px;--space-2:56px;--space-3:64px}
  main{padding-top:76px}
  .hero-inner{grid-template-columns:1fr;padding:48px 0 64px}
  .hero-stats{max-width:520px}
  .strip{grid-template-columns:1fr;gap:14px}
  .faq-grid{grid-template-columns:1fr;gap:26px}
  .form-card{position:static}
  .route{grid-template-columns:1fr;gap:30px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step:nth-child(2)::after{display:none}
  .link-cards{grid-template-columns:1fr 1fr}
  .cta-panel{grid-template-columns:1fr;padding:36px 28px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .nav-search{display:none}
  .nav-toggle{display:flex}
  .nav-channels{
    position:fixed;top:0;left:0;right:0;bottom:0;
    flex-direction:column;align-items:stretch;gap:6px;margin:0;
    padding:96px 24px 32px;
    background:rgba(6,10,20,.97);
    backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
    transform:translateY(-100%);opacity:0;pointer-events:none;
    transition:transform .34s ease,opacity .3s ease;
    overflow-y:auto;z-index:-1;
  }
  .nav.is-open .nav-channels{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav-channels a{font-size:19px;font-weight:600;padding:16px 12px;border-radius:14px;color:var(--ink-0);border-bottom:1px solid rgba(255,255,255,.06)}
  .nav-channels a.active{background:rgba(31,200,255,.12)}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .nav{padding:0 16px;gap:12px}
  .link-btn{display:none}
  .hero-title{font-size:clamp(30px,7.6vw,40px)}
  .hero-stats{grid-template-columns:1fr;gap:16px}
  .stat + .stat{border-left:0;border-top:1px solid rgba(255,255,255,.08);padding-left:2px;padding-top:14px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px}
  .steps{grid-template-columns:1fr}
  .step::after{display:none}
  .link-cards{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .route-list{padding-left:26px}
  .check-item::before{left:-26px;width:18px;height:18px;top:7px}
}
@media (max-width:520px){
  body{font-size:15px;line-height:1.9}
  .btn{width:100%}
  .nav-tools .btn-sm{display:none}
  .cta-actions{width:100%}
  .sq-foot{font-size:12px}
  .hero-badges .badge{font-size:12px}
  .faq-q{font-size:15.5px;padding:16px 16px}
  .faq-a-inner{padding:0 16px 18px 24px;margin-left:14px}
  .footer-sub{flex-direction:column}
  .footer-sub .btn{width:100%}
}