/* roulang page: index */
:root{
  --bg:#05080D;
  --bg-2:#0A1119;
  --panel:#0D1620;
  --primary:#33E6C0;
  --primary-d:#16B394;
  --primary-soft:rgba(51,230,192,.12);
  --signal:#4C8DFF;
  --amber:#FFB454;
  --danger:#FF6B6B;
  --txt:#EAF2F7;
  --txt-2:#9FB2C2;
  --txt-3:#66798B;
  --line:rgba(255,255,255,.09);
  --line-2:rgba(255,255,255,.06);
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --shadow:0 18px 48px rgba(0,0,0,.45);
  --shadow-h:0 26px 64px rgba(0,0,0,.55);
  --glow:0 0 0 1px rgba(51,230,192,.35),0 10px 32px rgba(51,230,192,.22);
  --ease:cubic-bezier(.2,.8,.2,1);
  --font:"HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --mono:"JetBrains Mono",Consolas,"SFMono-Regular",monospace;
  --bs-body-bg:#05080D;
  --bs-body-color:#EAF2F7;
  --bs-border-color:rgba(255,255,255,.09);
  --bs-primary:#33E6C0;
  --bs-link-color:#33E6C0;
  --bs-link-hover-color:#7CF2DA;
  --bs-font-sans-serif:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--txt);
  font-family:var(--font);
  font-size:1rem;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:#7CF2DA}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
::selection{background:rgba(51,230,192,.28);color:#fff}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{max-width:1240px;padding-left:32px;padding-right:32px}
@media (max-width:991.98px){.container{padding-left:24px;padding-right:24px}}
@media (max-width:575.98px){.container{padding-left:18px;padding-right:18px}}

/* ===== 通用组件 ===== */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mono);font-size:.75rem;letter-spacing:.12em;
  color:var(--primary);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,transparent,var(--primary))}
.sec{padding:clamp(56px,8vw,104px) 0;position:relative}
.sec-head{max-width:760px;margin-bottom:clamp(28px,4vw,48px)}
.sec-title{font-size:clamp(1.5rem,2.6vw,2.1rem);font-weight:650;margin-bottom:12px}
.sec-sub{color:var(--txt-2);font-size:1rem;line-height:1.8}
.card-glass{
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid var(--line);
  border-radius:var(--r-md);
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
  box-shadow:var(--shadow);
}
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 26px;border-radius:var(--r-sm);border:0;
  background:linear-gradient(135deg,#33E6C0,#16B394);
  color:#04120F;font-weight:700;font-size:.95rem;
  transition:transform .2s var(--ease),filter .2s var(--ease),box-shadow .2s var(--ease);
  min-height:48px;
}
.btn-glow:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:var(--glow);color:#04120F}
.btn-glow:active{transform:translateY(1px)}
.btn-glow .arw{transition:transform .2s var(--ease)}
.btn-glow:hover .arw{transform:translateX(4px)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 26px;border-radius:var(--r-sm);
  background:transparent;border:1px solid var(--line);
  color:var(--txt);font-weight:600;font-size:.95rem;
  transition:all .2s var(--ease);min-height:48px;
}
.btn-ghost:hover{border-color:var(--primary);background:rgba(51,230,192,.08);color:var(--txt)}
.btn-text{
  display:inline-flex;align-items:center;gap:8px;color:var(--primary);
  font-weight:600;font-size:.925rem;padding:4px 0;border-bottom:1px solid transparent;
  transition:all .2s var(--ease);
}
.btn-text:hover{border-bottom-color:rgba(51,230,192,.6);color:#7CF2DA}
.btn-text .arw{transition:transform .2s var(--ease)}
.btn-text:hover .arw{transform:translateX(4px)}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary);
  font-size:.78rem;font-weight:600;letter-spacing:.02em;
}
.tag-amber{background:rgba(255,180,84,.14);color:var(--amber)}
.num-mono{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* ===== 顶部导航 ===== */
.site-head{
  position:sticky;top:0;z-index:1030;
  padding:14px 0;
  background:linear-gradient(180deg,rgba(5,8,13,.94),rgba(5,8,13,.72));
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-2);
  transition:padding .25s var(--ease),background .25s var(--ease);
}
.site-head.scrolled{padding:8px 0;background:rgba(4,7,11,.97)}
.nav-panel{
  display:flex;align-items:center;gap:14px;
  min-height:72px;padding:10px 14px;
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid var(--line);
  border-radius:18px;
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
  transition:min-height .25s var(--ease);
}
.site-head.scrolled .nav-panel{min-height:60px}
.brand{display:inline-flex;align-items:baseline;gap:6px;padding:6px 10px;border-radius:12px;transition:background .2s var(--ease)}
.brand:hover{background:rgba(255,255,255,.05)}
.brand-mark{
  font-family:var(--mono);font-weight:700;font-size:1.2rem;letter-spacing:.02em;
  color:var(--primary);text-shadow:0 0 18px rgba(51,230,192,.45);
}
.brand-name{font-size:1.08rem;font-weight:700;color:var(--txt);letter-spacing:.02em}
.nav-cards{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-item-card{
  position:relative;display:flex;align-items:center;gap:8px;
  padding:10px 14px;border-radius:12px;
  color:var(--txt-2);font-size:.9rem;font-weight:500;
  border:1px solid transparent;
  transition:all .2s var(--ease);white-space:nowrap;
}
.nav-item-card svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.6;opacity:.9}
.nav-item-card::after{
  content:"";position:absolute;left:12px;right:12px;top:0;height:2px;border-radius:2px;
  background:var(--primary);opacity:0;transform:scaleX(.4);
  transition:all .25s var(--ease);
}
.nav-item-card:hover{color:var(--txt);background:rgba(255,255,255,.06);border-color:var(--line)}
.nav-item-card:hover::after{opacity:.7;transform:scaleX(1)}
.nav-item-card.is-active{color:var(--txt);background:rgba(51,230,192,.10);border-color:rgba(51,230,192,.3)}
.nav-item-card.is-active::before{
  content:"";position:absolute;left:-1px;top:50%;transform:translateY(-50%);
  width:3px;height:18px;border-radius:2px;background:var(--primary);
}
.nav-item-card.is-active::after{opacity:0}
.nav-cta{display:flex;align-items:center;gap:10px;margin-left:8px}
.nav-cta .btn-glow{padding:11px 20px;min-height:44px;font-size:.9rem}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  align-items:center;justify-content:center;
  background:rgba(255,255,255,.06);border:1px solid var(--line);color:var(--txt);
  transition:all .2s var(--ease);margin-left:auto;
}
.nav-toggle:hover{background:rgba(51,230,192,.12);border-color:rgba(51,230,192,.4)}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-drawer{
  display:none;position:fixed;left:0;right:0;top:0;bottom:0;z-index:1029;
  background:rgba(5,8,13,.98);
  padding:96px 18px 120px;overflow-y:auto;
}
.nav-drawer.open{display:block;animation:drawerIn .25s var(--ease)}
@keyframes drawerIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.drawer-grid .nav-item-card{padding:16px 14px;background:rgba(255,255,255,.05);border-color:var(--line);color:var(--txt)}
.drawer-foot{position:fixed;left:18px;right:18px;bottom:18px}
.drawer-foot .btn-glow{width:100%}

/* ===== Hero ===== */
.hero{position:relative;padding:clamp(44px,6vw,80px) 0 clamp(36px,5vw,64px);overflow:hidden;isolation:isolate}
.hero::before{
  content:"";position:absolute;inset:0;z-index:-2;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  opacity:.16;
  -webkit-mask-image:radial-gradient(circle at 50% 28%,#000 0%,rgba(0,0,0,.4) 55%,transparent 78%);
  mask-image:radial-gradient(circle at 50% 28%,#000 0%,rgba(0,0,0,.4) 55%,transparent 78%);
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:32px 32px;
  -webkit-mask-image:radial-gradient(circle at 50% 20%,#000,transparent 72%);
  mask-image:radial-gradient(circle at 50% 20%,#000,transparent 72%);
}
.hero-scan{
  position:absolute;left:0;right:0;top:22%;height:120px;z-index:-1;pointer-events:none;
  background:linear-gradient(90deg,transparent,rgba(51,230,192,.16),transparent);
  opacity:.08;filter:blur(12px);
  animation:scanMove 14s linear infinite;
}
@keyframes scanMove{0%{transform:translateX(-60%)}100%{transform:translateX(60%)}}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:clamp(24px,4vw,56px);align-items:center}
.hero h1{font-size:clamp(2rem,4.2vw,3.25rem);line-height:1.18;font-weight:700;letter-spacing:-.01em;margin-bottom:18px}
.hero h1 em{font-style:normal;color:var(--primary);text-shadow:0 0 28px rgba(51,230,192,.35)}
.hero-lead{color:var(--txt-2);font-size:1.05rem;line-height:1.8;max-width:520px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-stats{display:flex;flex-wrap:wrap;gap:clamp(20px,4vw,44px)}
.hero-stat .stat-num{
  font-family:var(--mono);font-size:1.9rem;font-weight:700;color:var(--primary);
  line-height:1.2;letter-spacing:-.02em;
}
.hero-stat .stat-label{font-size:.78rem;color:var(--txt-3);margin-top:2px}
.hero-visual{position:relative}
.hero-card{
  position:relative;padding:14px;border-radius:var(--r-lg);overflow:hidden;
  animation:floatY 8s ease-in-out infinite;
}
.hero-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:14px;background:#0B1219}
@keyframes floatY{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
.float-chip{
  position:absolute;display:flex;flex-direction:column;gap:2px;
  padding:10px 14px;border-radius:12px;
  background:rgba(9,17,25,.9);border:1px solid rgba(51,230,192,.28);
  box-shadow:0 12px 32px rgba(0,0,0,.5);
  backdrop-filter:blur(10px);font-size:.75rem;color:var(--txt-2);
  max-width:58%;
}
.float-chip .chip-num{font-family:var(--mono);font-size:1.05rem;font-weight:700;color:var(--primary)}
.chip-a{top:26px;right:-12px}
.chip-b{bottom:22px;left:-12px;border-color:var(--line);color:var(--txt-2)}
.chip-b b{font-family:var(--mono);color:var(--amber);font-size:1rem}

/* ===== 信任条 ===== */
.trust{padding:0 0 clamp(36px,5vw,56px)}
.trust-bar{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  padding:18px 24px;border-radius:var(--r-md);
  border:1px dashed rgba(255,255,255,.13);
  background:rgba(255,255,255,.02);
}
.trust-item{
  display:flex;align-items:center;gap:8px;
  font-size:.82rem;color:var(--txt-3);filter:grayscale(1);opacity:.85;
  transition:all .25s var(--ease);
}
.trust-item:hover{filter:none;opacity:1;color:var(--txt-2)}
.trust-item i{width:6px;height:6px;border-radius:50%;background:rgba(159,178,194,.6);display:inline-block}

/* ===== Bento 功能分组 ===== */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.bento-card{
  position:relative;padding:26px;border-radius:var(--r-lg);
  background:linear-gradient(160deg,rgba(255,255,255,.055),rgba(255,255,255,.015));
  border:1px solid var(--line);
  transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
  overflow:hidden;
}
.bento-card::after{
  content:"";position:absolute;top:-40px;right:-40px;width:120px;height:120px;border-radius:50%;
  background:radial-gradient(circle,rgba(51,230,192,.35),transparent 70%);
  opacity:0;transition:opacity .3s var(--ease);
}
.bento-card:hover{transform:translateY(-4px);border-color:rgba(51,230,192,.3);box-shadow:var(--shadow-h)}
.bento-card:hover::after{opacity:.7}
.bento-main{grid-column:span 6;grid-row:span 2;display:flex;flex-direction:column}
.bento-cell{grid-column:span 3}
.bento-num{
  font-family:var(--mono);font-size:.75rem;letter-spacing:.12em;
  color:var(--primary);margin-bottom:14px;display:block;
}
.bento-card h3{font-size:1.2rem;font-weight:600;margin-bottom:10px}
.bento-card p{color:var(--txt-2);font-size:.9rem;line-height:1.75}
.bento-main img{
  width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:14px;
  margin-top:auto;margin-bottom:18px;background:#0B1219;
}
.bento-list{margin-top:16px;display:grid;gap:8px}
.bento-list li{
  display:flex;gap:8px;align-items:flex-start;
  font-size:.85rem;color:var(--txt-2);
}
.bento-list li::before{
  content:"";flex:none;width:6px;height:6px;border-radius:50%;
  background:var(--primary);margin-top:9px;box-shadow:0 0 10px rgba(51,230,192,.7);
}
.bento-ico{
  width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:rgba(76,141,255,.12);color:var(--signal);margin-bottom:14px;
}
.bento-ico svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.7}

/* ===== 场景 ===== */
.scene-list{display:grid;gap:clamp(40px,6vw,72px);position:relative}
.scene{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,5vw,64px);align-items:center}
.scene.rev .scene-media{order:2}
.scene-media{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line)}
.scene-media img{width:100%;aspect-ratio:4/3;object-fit:cover;background:#0B1219;transition:transform .5s var(--ease)}
.scene-media:hover img{transform:scale(1.04)}
.scene-index{
  font-family:var(--mono);font-size:.75rem;letter-spacing:.12em;color:var(--primary);
  display:block;margin-bottom:10px;
}
.scene h3{font-size:clamp(1.15rem,2vw,1.45rem);margin-bottom:12px}
.scene p{color:var(--txt-2);font-size:.95rem;line-height:1.8;margin-bottom:16px}
.scene-points{display:grid;gap:10px;margin-bottom:22px}
.scene-points li{display:flex;gap:10px;font-size:.9rem;color:var(--txt-2)}
.scene-points li span.chk{
  flex:none;width:20px;height:20px;border-radius:6px;margin-top:2px;
  background:var(--primary-soft);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:.7rem;font-weight:700;
}

/* ===== 案例 ===== */
.case-row{display:grid;grid-template-columns:7fr 5fr;gap:24px;margin-bottom:24px}
.case-card{
  position:relative;border-radius:var(--r-lg);overflow:hidden;min-height:300px;
  display:flex;flex-direction:column;justify-content:flex-end;
  padding:28px;border:1px solid var(--line);
  background:#0B1219;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-h)}
.case-card img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.42;
  transition:opacity .3s var(--ease),transform .5s var(--ease);
}
.case-card:hover img{opacity:.55;transform:scale(1.03)}
.case-card::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,8,13,.15) 0%,rgba(5,8,13,.82) 62%,rgba(5,8,13,.96) 100%);
}
.case-body{position:relative;z-index:1}
.case-body h3{font-size:1.12rem;margin:12px 0 8px;color:var(--txt)}
.case-body p{font-size:.875rem;color:var(--txt-2);line-height:1.75;max-width:92%}
.case-metrics{display:flex;flex-wrap:wrap;gap:22px;margin-top:18px;padding-top:16px;border-top:1px dashed rgba(255,255,255,.14)}
.case-metrics .m-num{font-family:var(--mono);font-size:1.28rem;font-weight:700;color:var(--primary)}
.case-metrics .m-label{font-size:.72rem;color:var(--txt-3)}
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.quote-card{
  padding:22px;border-radius:var(--r-md);
  background:linear-gradient(160deg,rgba(255,255,255,.055),rgba(255,255,255,.015));
  border:1px solid var(--line);transition:all .25s var(--ease);
}
.quote-card:hover{border-color:rgba(51,230,192,.28);transform:translateY(-3px)}
.quote-card .q-mark{font-family:var(--mono);font-size:1.6rem;color:var(--primary);line-height:1;opacity:.7}
.quote-card p{font-size:.9rem;color:var(--txt-2);line-height:1.8;margin:10px 0 16px}
.quote-meta{display:flex;align-items:center;gap:10px;font-size:.78rem;color:var(--txt-3)}
.quote-meta b{color:var(--txt);font-size:.85rem;font-weight:600}

/* ===== 价格 ===== */
.price-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px}
.cycle-switch{
  display:inline-flex;gap:4px;padding:5px;border-radius:999px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
}
.cycle-switch button{
  border:0;background:transparent;color:var(--txt-3);
  padding:8px 18px;border-radius:999px;font-size:.84rem;font-weight:600;
  transition:all .2s var(--ease);min-height:38px;
}
.cycle-switch button.on{background:rgba(51,230,192,.16);color:var(--primary)}
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch}
.price-card{
  position:relative;display:flex;flex-direction:column;
  padding:30px 26px;border-radius:var(--r-lg);
  background:linear-gradient(160deg,rgba(255,255,255,.055),rgba(255,255,255,.015));
  border:1px solid var(--line);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.price-card:hover{transform:translateY(-4px);border-color:rgba(51,230,192,.28);box-shadow:var(--shadow-h)}
.price-card.featured{
  transform:scale(1.04);
  border-color:rgba(51,230,192,.45);
  box-shadow:var(--glow);
  background:linear-gradient(160deg,rgba(51,230,192,.09),rgba(255,255,255,.02));
  clip-path:polygon(0 0,calc(100% - 18px) 0,100% 18px,100% 100%,18px 100%,0 calc(100% - 18px));
}
.price-card.featured:hover{transform:scale(1.04) translateY(-4px)}
.price-badge{
  position:absolute;top:16px;right:16px;
  padding:4px 12px;border-radius:999px;
  background:rgba(255,180,84,.16);color:var(--amber);
  font-size:.72rem;font-weight:700;letter-spacing:.04em;
}
.price-name{font-size:1.05rem;font-weight:650;margin-bottom:6px}
.price-desc{font-size:.83rem;color:var(--txt-3);margin-bottom:20px;min-height:44px}
.price-amount{display:flex;align-items:baseline;gap:6px;margin-bottom:6px}
.price-amount .cur{font-size:.95rem;color:var(--txt-2)}
.price-amount .val{font-family:var(--mono);font-size:2.3rem;font-weight:700;color:var(--txt);letter-spacing:-.02em}
.price-amount .unit{font-size:.8rem;color:var(--txt-3)}
.price-note{font-size:.75rem;color:var(--txt-3);margin-bottom:22px}
.price-feats{display:grid;gap:10px;margin-bottom:26px}
.price-feats li{display:flex;gap:9px;font-size:.86rem;color:var(--txt-2)}
.price-feats li::before{
  content:"";flex:none;width:16px;height:16px;border-radius:50%;margin-top:4px;
  background:rgba(51,230,192,.16);
  box-shadow:inset 0 0 0 1px rgba(51,230,192,.4);
}
.price-card .btn-glow,.price-card .btn-ghost{margin-top:auto;width:100%}

/* ===== 最新信息 ===== */
.news-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.news-grid{display:grid;grid-template-columns:6fr 6fr;gap:24px}
.news-main{
  display:flex;flex-direction:column;
  border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  transition:all .25s var(--ease);color:inherit;
}
.news-main:hover{border-color:rgba(51,230,192,.32);transform:translateY(-3px);box-shadow:var(--shadow-h);color:inherit}
.news-main .thumb{position:relative;overflow:hidden;background:#0B1219}
.news-main .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s var(--ease)}
.news-main:hover .thumb img{transform:scale(1.04)}
.news-main .body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-main h3{font-size:1.15rem;line-height:1.5;color:var(--txt);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-main p{font-size:.875rem;color:var(--txt-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-side{display:grid;gap:14px;align-content:start}
.news-item{
  display:flex;gap:14px;padding:16px 18px;border-radius:var(--r-md);
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  transition:all .2s var(--ease);color:inherit;
}
.news-item:hover{border-color:rgba(51,230,192,.3);background:rgba(51,230,192,.05);color:inherit;transform:translateX(3px)}
.news-item .txt{flex:1;min-width:0}
.news-item h3{
  font-size:.95rem;font-weight:600;line-height:1.55;color:var(--txt);margin:6px 0 6px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-item p{
  font-size:.8rem;color:var(--txt-3);line-height:1.7;margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;gap:10px;font-family:var(--mono);font-size:.72rem;color:var(--txt-3)}
.news-item .arw{color:var(--primary);align-self:flex-end;transition:transform .2s var(--ease)}
.news-item:hover .arw{transform:translateX(3px)}
.news-empty{
  min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  border:1px dashed rgba(255,255,255,.14);border-radius:var(--r-lg);
  color:var(--txt-3);font-size:.9rem;text-align:center;padding:32px;
}
.news-empty .geo{
  width:52px;height:52px;border-radius:14px;
  border:1px solid rgba(51,230,192,.35);
  background:linear-gradient(135deg,rgba(51,230,192,.16),transparent);
  transform:rotate(45deg);
}

/* ===== FAQ ===== */
.faq-wrap{display:grid;grid-template-columns:5fr 7fr;gap:clamp(24px,4vw,48px);align-items:start}
.faq-list{display:grid;gap:12px}
.faq-item{
  border-radius:14px;border:1px solid var(--line);
  background:rgba(255,255,255,.03);overflow:hidden;
  transition:all .2s var(--ease);
}
.faq-item[open]{background:rgba(51,230,192,.055);border-color:rgba(51,230,192,.28);box-shadow:inset 3px 0 0 var(--primary)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;font-size:1rem;font-weight:600;color:var(--txt);
  min-height:56px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::marker{display:none;content:""}
.faq-ico{position:relative;flex:none;width:18px;height:18px;transition:transform .25s var(--ease)}
.faq-ico::before,.faq-ico::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-ico::before{width:14px;height:2px}
.faq-ico::after{width:2px;height:14px}
.faq-item[open] .faq-ico{transform:rotate(45deg)}
.faq-body{padding:0 20px 20px;color:var(--txt-2);font-size:.9rem;line-height:1.8}
.faq-aside{
  padding:26px;border-radius:var(--r-lg);
  background:linear-gradient(160deg,rgba(51,230,192,.09),rgba(255,255,255,.02));
  border:1px solid rgba(51,230,192,.24);
}
.faq-aside h3{font-size:1.1rem;margin-bottom:10px}
.faq-aside p{font-size:.875rem;color:var(--txt-2);line-height:1.8;margin-bottom:18px}
.faq-aside .mini{display:grid;gap:12px;margin-bottom:20px}
.faq-aside .mini li{display:flex;justify-content:space-between;gap:12px;font-size:.82rem;color:var(--txt-2);padding-bottom:10px;border-bottom:1px dashed rgba(255,255,255,.12)}
.faq-aside .mini li b{font-family:var(--mono);color:var(--primary)}

/* ===== 底部 CTA ===== */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);
  padding:clamp(32px,5vw,56px);
  background:linear-gradient(130deg,rgba(51,230,192,.16),rgba(76,141,255,.10) 48%,rgba(255,180,84,.10));
  border:1px solid rgba(51,230,192,.3);
  display:grid;grid-template-columns:1.2fr .8fr;gap:32px;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(51,230,192,.3),transparent 68%);
  pointer-events:none;
}
.cta-band h2{font-size:clamp(1.4rem,2.4vw,1.95rem);margin-bottom:12px;position:relative}
.cta-band p{color:var(--txt-2);font-size:.95rem;line-height:1.8;max-width:520px;position:relative}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;position:relative}

/* ===== 页脚 ===== */
.site-foot{background:#04070B;border-top:1px solid var(--line-2);padding:clamp(48px,6vw,72px) 0 0;margin-top:clamp(48px,7vw,88px)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:clamp(24px,4vw,48px)}
.foot-brand .brand{padding:0;margin-bottom:14px}
.foot-brand p{font-size:.86rem;color:var(--txt-3);line-height:1.8;max-width:280px;margin-bottom:18px}
.foot-tags{display:flex;flex-wrap:wrap;gap:8px}
.foot-tags span{
  font-size:.72rem;padding:4px 11px;border-radius:999px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--txt-2);
}
.foot-col h4{font-size:.85rem;letter-spacing:.08em;color:var(--txt);margin-bottom:16px;font-weight:650}
.foot-col ul{display:grid;gap:10px}
.foot-col a{font-size:.86rem;color:var(--txt-3)}
.foot-col a:hover{color:var(--primary)}
.foot-form{display:grid;gap:10px;margin-top:14px}
.foot-form label{font-size:.72rem;color:var(--txt-3);letter-spacing:.04em}
.foot-form input{
  width:100%;height:46px;padding:0 14px;border-radius:12px;
  background:#0B141D;border:1px solid var(--line);color:var(--txt);
  font-size:.875rem;transition:all .2s var(--ease);
}
.foot-form input::placeholder{color:#4E5F6E}
.foot-form input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(51,230,192,.18)}
.foot-form .btn-glow{width:100%;padding:12px 20px;min-height:46px;font-size:.875rem}
.foot-contact{display:grid;gap:8px;font-size:.82rem;color:var(--txt-3);margin-bottom:6px}
.foot-contact b{color:var(--txt-2);font-weight:600}
.foot-bottom{
  margin-top:clamp(32px,5vw,48px);padding:20px 0;
  border-top:1px dashed rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:.78rem;color:var(--txt-3);
}
.foot-bottom a{color:var(--txt-3)}
.foot-bottom a:hover{color:var(--primary)}
.to-top{
  display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:999px;
  border:1px solid var(--line);color:var(--txt-2);font-size:.78rem;
  transition:all .2s var(--ease);
}
.to-top:hover{border-color:var(--primary);color:var(--primary)}

/* ===== 响应式 ===== */
@media (max-width:1199.98px){
  .bento-main{grid-column:span 12;grid-row:auto}
  .bento-cell{grid-column:span 6}
  .hero-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:991.98px){
  .nav-cards,.nav-cta{display:none}
  .nav-toggle{display:flex}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-lead{max-width:none}
  .hero-visual{max-width:560px}
  .chip-a{right:8px}
  .chip-b{left:8px}
  .scene,.scene.rev .scene-media{grid-template-columns:1fr;order:0}
  .case-row{grid-template-columns:1fr}
  .quote-grid{grid-template-columns:1fr}
  .price-grid{grid-template-columns:1fr;gap:18px}
  .price-card.featured{transform:none;clip-path:none}
  .price-card.featured:hover{transform:translateY(-4px)}
  .news-grid{grid-template-columns:1fr}
  .faq-wrap{grid-template-columns:1fr}
  .cta-band{grid-template-columns:1fr}
  .cta-actions{justify-content:flex-start}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767.98px){
  .bento{grid-template-columns:1fr;gap:16px}
  .bento-main,.bento-cell{grid-column:span 1}
  .trust-bar{justify-content:flex-start;gap:10px 18px}
  .foot-grid{grid-template-columns:1fr}
  .hero-stats{gap:20px 32px}
  .hero-stat .stat-num{font-size:1.55rem}
}
@media (max-width:575.98px){
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn-glow,.hero-actions .btn-ghost{width:100%}
  .price-head{flex-direction:column;align-items:flex-start}
  .foot-bottom{justify-content:flex-start}
  .float-chip{max-width:70%;padding:8px 11px}
  .case-card{min-height:260px;padding:22px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --bg:#05080D;
  --bg-2:#0A1119;
  --panel:#0D1620;
  --panel-2:#0B141D;
  --primary:#33E6C0;
  --primary-deep:#16B394;
  --primary-mist:rgba(51,230,192,.12);
  --blue:#4C8DFF;
  --amber:#FFB454;
  --text:#EAF2F7;
  --text-2:#9FB2C2;
  --text-3:#66798B;
  --line:rgba(255,255,255,.09);
  --line-soft:rgba(255,255,255,.06);
  --r-lg:20px;
  --r:16px;
  --r-sm:12px;
  --shadow:0 18px 48px rgba(0,0,0,.45);
  --shadow-hover:0 26px 64px rgba(0,0,0,.55);
  --glow:0 0 0 1px rgba(51,230,192,.35),0 10px 32px rgba(51,230,192,.22);
  --ease:cubic-bezier(.2,.8,.2,1);
  --bs-body-bg:#05080D;
  --bs-body-color:#EAF2F7;
  --bs-border-color:rgba(255,255,255,.09);
  --bs-primary:#33E6C0;
  --bs-link-color:#33E6C0;
  --bs-link-hover-color:#7CF2DA;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:110px;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",Inter,system-ui,sans-serif;
  font-size:1rem;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:#7CF2DA;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}
.mono{font-family:"JetBrains Mono",Consolas,"Courier New",monospace;font-variant-numeric:tabular-nums;}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:"JetBrains Mono",Consolas,monospace;
  font-size:.75rem;letter-spacing:.12em;text-transform:uppercase;
  color:var(--primary);
}
.eyebrow::before{
  content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--primary),transparent);
}
.section{padding:clamp(56px,8vw,104px) 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{font-size:clamp(1.5rem,2.6vw,2.1rem);font-weight:650;margin:14px 0 14px;}
.section-head p{color:var(--text-2);font-size:1rem;}
.section-head.is-center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head.is-center .eyebrow{justify-content:center;}

/* ---------- 头部导航 ---------- */
.site-head{
  position:sticky;top:0;z-index:120;
  padding:12px 0;
  background:linear-gradient(180deg,rgba(5,8,13,.92),rgba(5,8,13,.55) 70%,rgba(5,8,13,0));
  backdrop-filter:blur(14px) saturate(130%);
  transition:padding .28s var(--ease);
}
.site-head.is-scrolled{padding:6px 0;}
.head-inner{
  display:flex;align-items:center;gap:16px;
  padding:10px 14px;
  border:1px solid var(--line);
  border-radius:var(--r);
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  backdrop-filter:blur(18px) saturate(120%);
  box-shadow:var(--shadow);
  transition:background .28s var(--ease);
}
.site-head.is-scrolled .head-inner{background:linear-gradient(160deg,rgba(10,17,25,.96),rgba(8,14,21,.92));}
.brand{display:flex;align-items:center;gap:8px;flex:none;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{
  font-family:"JetBrains Mono",Consolas,monospace;
  font-weight:700;font-size:.95rem;letter-spacing:.02em;
  color:var(--primary);
  background:var(--primary-mist);
  border:1px solid rgba(51,230,192,.28);
  border-radius:10px;
  padding:5px 9px;
  line-height:1;
}
.brand-name{font-weight:700;font-size:1.06rem;letter-spacing:.06em;}
.nav-cards{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-item-card{
  position:relative;
  display:inline-flex;align-items:center;gap:7px;
  height:44px;padding:0 12px;
  border-radius:var(--r-sm);
  font-size:.86rem;color:var(--text-2);
  border:1px solid transparent;
  white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.nav-item-card svg{
  width:17px;height:17px;flex:none;
  fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;
}
.nav-item-card::before{
  content:"";position:absolute;left:12px;right:12px;top:0;height:2px;border-radius:2px;
  background:var(--primary);opacity:0;transition:opacity .2s var(--ease);
}
.nav-item-card:hover,.nav-item-card:focus-visible{
  background:rgba(255,255,255,.06);color:var(--text);
}
.nav-item-card:hover::before{opacity:.65;}
.nav-item-card.is-active{
  background:rgba(51,230,192,.10);
  color:var(--primary);
  border-color:rgba(51,230,192,.22);
  box-shadow:inset 3px 0 0 var(--primary);
}
.head-cta{flex:none;}
.nav-toggle{
  display:none;width:44px;height:44px;flex:none;
  align-items:center;justify-content:center;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  color:var(--text);
  cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.mobile-drawer{
  display:none;
  margin-top:10px;
  padding:16px;
  border:1px solid var(--line);
  border-radius:var(--r);
  background:linear-gradient(170deg,rgba(13,22,32,.99),rgba(6,11,17,.99));
  box-shadow:var(--shadow);
}
.mobile-drawer.is-open{display:block;}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
.drawer-grid .nav-item-card{
  height:auto;padding:12px;flex-direction:column;align-items:flex-start;gap:8px;
  border-color:var(--line);background:rgba(255,255,255,.03);font-size:.9rem;
}
.drawer-grid .nav-item-card.is-active{background:rgba(51,230,192,.12);box-shadow:inset 3px 0 0 var(--primary);}
.drawer-cta{margin-top:14px;display:block;}
.drawer-cta .btn-glow{width:100%;justify-content:center;}

/* ---------- 按钮 ---------- */
.btn-glow,.btn-ghost,.btn-link-arrow{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:.94rem;font-weight:600;
  border-radius:var(--r-sm);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-glow{
  padding:13px 24px;
  color:#04120F;
  border:1px solid rgba(51,230,192,.5);
  background:linear-gradient(135deg,#5CF3D4,#33E6C0 48%,#16B394);
  box-shadow:0 10px 28px rgba(51,230,192,.18);
}
.btn-glow:hover,.btn-glow:focus-visible{
  color:#04120F;
  transform:translateY(-2px);
  filter:brightness(1.06);
  box-shadow:0 14px 36px rgba(51,230,192,.32);
}
.btn-glow:active{transform:translateY(-1px);}
.btn-glow .arw{transition:transform .2s var(--ease);}
.btn-glow:hover .arw{transform:translateX(4px);}
.btn-ghost{
  padding:12px 22px;
  color:var(--text);
  border:1px solid var(--line);
  background:transparent;
}
.btn-ghost:hover,.btn-ghost:focus-visible{
  color:var(--primary);
  border-color:rgba(51,230,192,.55);
  background:rgba(51,230,192,.08);
  transform:translateY(-2px);
}
.btn-link-arrow{
  color:var(--primary);
  padding:4px 0;
  font-size:.92rem;
  border-bottom:1px solid transparent;
}
.btn-link-arrow:hover{border-bottom-color:rgba(51,230,192,.6);color:#7CF2DA;}
.btn-link-arrow .arw{transition:transform .2s var(--ease);}
.btn-link-arrow:hover .arw{transform:translateX(4px);}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:2px;
}

/* ---------- 小屏块 ---------- */
.compact-hero{
  position:relative;
  padding:clamp(34px,5vw,58px) 0 clamp(28px,4vw,44px);
  background-image:
    radial-gradient(circle at 78% 22%,rgba(51,230,192,.16),transparent 58%),
    linear-gradient(180deg,rgba(5,8,13,.72),rgba(5,8,13,.96)),
    url(/assets/images/backpic/back-1.webp);
  background-size:cover,cover,cover;
  background-position:center,center,center;
  border-bottom:1px solid var(--line-soft);
}
.compact-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:32px 32px;
  mask-image:radial-gradient(circle at 50% 30%,#000 25%,transparent 82%);
  -webkit-mask-image:radial-gradient(circle at 50% 30%,#000 25%,transparent 82%);
  opacity:.7;
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.65fr);
  gap:44px;align-items:center;
}
.crumbs{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:.82rem;color:var(--text-3);margin-bottom:18px;}
.crumbs a{color:var(--text-2);}
.crumbs a:hover{color:var(--primary);}
.crumbs .sep{color:var(--text-3);opacity:.7;}
.cat-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  font-size:.78rem;letter-spacing:.06em;
  color:var(--primary);
  background:var(--primary-mist);
  border:1px solid rgba(51,230,192,.26);
  margin-bottom:18px;
}
.compact-hero h1{
  font-size:clamp(1.8rem,3.6vw,2.9rem);
  line-height:1.18;
  font-weight:700;
  margin-bottom:16px;
}
.compact-hero h1 em{font-style:normal;color:var(--primary);}
.hero-sub{color:var(--text-2);font-size:1.02rem;max-width:640px;}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:28px;margin-top:26px;
  padding-top:22px;border-top:1px dashed var(--line);
}
.fact b{
  display:block;font-family:"JetBrains Mono",Consolas,monospace;
  font-size:1.5rem;color:var(--primary);line-height:1.1;
}
.fact span{font-size:.8rem;color:var(--text-3);letter-spacing:.04em;}
.hero-thumb{
  position:relative;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  overflow:hidden;
  box-shadow:var(--shadow);
  background:var(--panel-2);
}
.hero-thumb img{width:100%;height:230px;object-fit:cover;opacity:.9;}
.hero-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,8,13,.05),rgba(5,8,13,.72));
}
.hero-thumb .thumb-tag{
  position:absolute;left:14px;bottom:14px;z-index:2;
  padding:6px 12px;border-radius:999px;
  font-family:"JetBrains Mono",Consolas,monospace;
  font-size:.72rem;letter-spacing:.1em;
  color:#04120F;background:var(--primary);
}

/* ---------- 目录 + 方案段落 ---------- */
.doc-layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:48px;align-items:start;}
.toc{
  position:sticky;top:104px;
  padding:20px;
  border:1px solid var(--line);
  border-radius:var(--r);
  background:linear-gradient(170deg,rgba(255,255,255,.055),rgba(255,255,255,.015));
  box-shadow:var(--shadow);
}
.toc h2{
  font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--text-3);font-family:"JetBrains Mono",Consolas,monospace;font-weight:600;
  margin-bottom:14px;
}
.toc ol{display:flex;flex-direction:column;gap:4px;}
.toc a{
  display:flex;gap:10px;align-items:baseline;
  padding:9px 10px;border-radius:10px;
  font-size:.9rem;color:var(--text-2);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.toc a .num{font-family:"JetBrains Mono",Consolas,monospace;font-size:.74rem;color:var(--text-3);}
.toc a:hover,.toc a:focus-visible{background:rgba(51,230,192,.09);color:var(--primary);}
.toc a:hover .num{color:var(--primary);}
.toc .toc-cta{margin-top:16px;padding-top:16px;border-top:1px dashed var(--line);}
.toc .toc-cta .btn-glow{width:100%;padding:11px 16px;font-size:.88rem;}

.plan-block{padding-bottom:36px;margin-bottom:36px;position:relative;}
.plan-block::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,rgba(51,230,192,.45),rgba(255,255,255,.06) 45%,transparent);
}
.plan-block:last-of-type{margin-bottom:0;}
.plan-block:last-of-type::after{display:none;}
.block-num{
  font-family:"JetBrains Mono",Consolas,monospace;
  font-size:.76rem;letter-spacing:.16em;color:var(--primary);
  display:inline-block;margin-bottom:10px;
}
.plan-block h2{font-size:clamp(1.35rem,2.3vw,1.85rem);font-weight:650;margin-bottom:14px;}
.plan-block p{color:var(--text-2);margin-bottom:18px;}
.point-list{display:flex;flex-direction:column;gap:10px;margin-bottom:22px;}
.point-list li{
  position:relative;padding-left:24px;
  font-size:.94rem;color:var(--text-2);
}
.point-list li::before{
  content:"";position:absolute;left:0;top:.62em;
  width:9px;height:9px;border-radius:3px;
  background:var(--primary-mist);
  border:1px solid rgba(51,230,192,.6);
}
.point-list li b{color:var(--text);font-weight:600;}
.plan-figure{
  border-radius:var(--r);overflow:hidden;border:1px solid var(--line);
  background:var(--panel-2);margin-bottom:18px;
}
.plan-figure img{width:100%;height:220px;object-fit:cover;}
.fig-cap{
  padding:9px 14px;font-size:.76rem;color:var(--text-3);
  font-family:"JetBrains Mono",Consolas,monospace;letter-spacing:.04em;
  border-top:1px solid var(--line-soft);
}

/* ---------- 对照表 ---------- */
.table-wrap{
  border:1px solid var(--line);border-radius:var(--r);
  overflow:hidden;background:var(--panel);
  box-shadow:var(--shadow);
}
.spec-table{width:100%;border-collapse:collapse;font-size:.92rem;}
.spec-table thead th{
  background:rgba(51,230,192,.08);
  color:var(--text);
  font-weight:650;
  text-align:left;
  padding:16px 18px;
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.spec-table tbody td{
  padding:15px 18px;
  color:var(--text-2);
  border-bottom:1px solid var(--line-soft);
  vertical-align:top;
}
.spec-table tbody tr:nth-child(even){background:rgba(255,255,255,.022);}
.spec-table tbody tr:last-child td{border-bottom:0;}
.spec-table tbody tr:hover{background:rgba(51,230,192,.05);}
.spec-table td:first-child{color:var(--text);font-weight:600;}
.tag-amber{
  display:inline-block;padding:2px 9px;border-radius:999px;
  font-size:.72rem;color:#2A1A05;background:var(--amber);font-weight:600;
  margin-left:8px;
}

/* ---------- 交付节奏 ---------- */
.timeline{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:14px;position:relative;}
.tl-item{
  position:relative;
  padding:20px 16px 22px;
  border:1px solid var(--line);
  border-radius:var(--r);
  background:linear-gradient(170deg,rgba(255,255,255,.055),rgba(255,255,255,.012));
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.tl-item:hover{transform:translateY(-4px);border-color:rgba(51,230,192,.32);box-shadow:var(--shadow-hover);}
.tl-item .step{
  font-family:"JetBrains Mono",Consolas,monospace;
  font-size:.74rem;letter-spacing:.14em;color:var(--primary);
}
.tl-item h3{font-size:1rem;margin:10px 0 8px;font-weight:650;}
.tl-item p{font-size:.85rem;color:var(--text-2);line-height:1.65;}
.tl-item .dur{
  display:inline-block;margin-top:12px;padding:3px 10px;border-radius:999px;
  font-family:"JetBrains Mono",Consolas,monospace;font-size:.72rem;
  color:var(--blue);background:rgba(76,141,255,.12);border:1px solid rgba(76,141,255,.24);
}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  border:1px solid var(--line);
  border-radius:14px;
  background:var(--panel);
  overflow:hidden;
  transition:background .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.faq-item[open]{
  background:rgba(51,230,192,.05);
  border-color:rgba(51,230,192,.28);
  box-shadow:inset 3px 0 0 var(--primary);
}
.faq-item summary{
  cursor:pointer;list-style:none;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 20px;
  font-size:1.02rem;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  position:relative;flex:none;width:20px;height:20px;
  transition:transform .25s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:14px;height:2px;}
.faq-icon::after{width:2px;height:14px;}
.faq-item[open] .faq-icon{transform:rotate(45deg);}
.faq-body{padding:0 20px 20px;color:var(--text-2);font-size:.94rem;}

/* ---------- CTA ---------- */
.cta-band{padding:0 0 clamp(56px,8vw,96px);}
.cta-card{
  position:relative;
  display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,.9fr);
  gap:36px;align-items:center;
  padding:clamp(30px,4.5vw,54px);
  border-radius:var(--r-lg);
  border:1px solid rgba(51,230,192,.28);
  background:
    radial-gradient(circle at 88% 12%,rgba(51,230,192,.2),transparent 60%),
    linear-gradient(150deg,rgba(13,22,32,.98),rgba(6,12,18,.98));
  box-shadow:var(--glow);
  overflow:hidden;
}
.cta-card::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:34px 34px;
  mask-image:radial-gradient(circle at 80% 20%,#000 10%,transparent 70%);
  -webkit-mask-image:radial-gradient(circle at 80% 20%,#000 10%,transparent 70%);
  pointer-events:none;
}
.cta-card h2{position:relative;font-size:clamp(1.4rem,2.6vw,2rem);font-weight:650;margin-bottom:14px;}
.cta-card p{position:relative;color:var(--text-2);max-width:560px;}
.cta-actions{position:relative;display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}
.cta-side{position:relative;display:flex;flex-direction:column;gap:12px;}
.cta-side .mini{
  padding:14px 16px;border-radius:var(--r-sm);
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  font-size:.86rem;color:var(--text-2);
}
.cta-side .mini b{display:block;color:var(--primary);font-family:"JetBrains Mono",Consolas,monospace;font-size:1.1rem;margin-bottom:2px;}

/* ---------- 页脚 ---------- */
.site-foot{
  background:#04070B;
  border-top:1px solid var(--line-soft);
  padding:clamp(48px,7vw,80px) 0 0;
}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;}
.foot-brand .brand{margin-bottom:16px;}
.foot-brand p{color:var(--text-2);font-size:.9rem;max-width:320px;}
.foot-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.foot-tags span{
  padding:4px 11px;border-radius:999px;font-size:.75rem;
  color:var(--primary);background:var(--primary-mist);
  border:1px solid rgba(51,230,192,.22);
}
.foot-col h4{
  font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--text-3);font-family:"JetBrains Mono",Consolas,monospace;font-weight:600;
  margin-bottom:16px;
}
.foot-col ul{display:flex;flex-direction:column;gap:10px;}
.foot-col ul a{color:var(--text-2);font-size:.9rem;}
.foot-col ul a:hover{color:var(--primary);}
.foot-contact{display:flex;flex-direction:column;gap:8px;font-size:.87rem;color:var(--text-2);margin-bottom:16px;}
.foot-contact b{color:var(--text);font-weight:600;}
.foot-form{display:flex;flex-direction:column;gap:8px;}
.foot-form label{font-size:.74rem;color:var(--text-3);letter-spacing:.04em;}
.foot-form input{
  height:46px;padding:0 14px;border-radius:var(--r-sm);
  background:var(--panel-2);border:1px solid var(--line);
  color:var(--text);font-size:.9rem;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.foot-form input::placeholder{color:var(--text-3);}
.foot-form input:focus{
  outline:none;border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(51,230,192,.18);
}
.foot-form .btn-glow{width:100%;padding:11px 18px;font-size:.9rem;}
.foot-bottom{
  margin-top:44px;padding:20px 0 calc(20px + env(safe-area-inset-bottom));
  border-top:1px dashed var(--line);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:.8rem;color:var(--text-3);
}
.foot-bottom .to-top{color:var(--text-2);}
.foot-bottom .to-top:hover{color:var(--primary);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .nav-item-card{padding:0 9px;font-size:.82rem;gap:6px;}
  .doc-layout{grid-template-columns:220px minmax(0,1fr);gap:34px;}
}
@media (max-width:991px){
  .container{padding-left:24px;padding-right:24px;}
  .nav-cards,.head-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .head-inner{justify-content:space-between;}
  .hero-grid{grid-template-columns:1fr;gap:28px;}
  .hero-thumb img{height:200px;}
  .doc-layout{grid-template-columns:1fr;gap:28px;}
  .toc{position:static;}
  .toc ol{flex-direction:row;flex-wrap:wrap;gap:8px;}
  .toc a{padding:8px 12px;background:rgba(255,255,255,.04);border:1px solid var(--line);}
  .toc .toc-cta{display:none;}
  .timeline{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-card{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .section{padding:56px 0;}
  .compact-hero{padding-top:26px;}
  .hero-facts{gap:20px;}
  .fact b{font-size:1.3rem;}
  .spec-table{font-size:.85rem;}
  .spec-table thead th,.spec-table tbody td{padding:12px 12px;}
  .table-wrap{overflow-x:auto;}
  .plan-figure img{height:180px;}
  .timeline{grid-template-columns:1fr;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-actions .btn-glow,.cta-actions .btn-ghost{width:100%;}
}
@media (max-width:575px){
  .container{padding-left:18px;padding-right:18px;}
  body{font-size:.96rem;}
  .drawer-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
  .compact-hero h1{font-size:1.6rem;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
}

/* roulang page: article */
:root {
      --bg: #05080D;
      --bg-2: #0A1119;
      --panel: #0D1620;
      --panel-2: #0B141D;
      --brand: #33E6C0;
      --brand-2: #16B394;
      --brand-soft: rgba(51, 230, 192, .12);
      --brand-line: rgba(51, 230, 192, .35);
      --blue: #4C8DFF;
      --amber: #FFB454;
      --error: #FF6B6B;
      --text: #EAF2F7;
      --muted: #9FB2C2;
      --dim: #66798B;
      --line: rgba(255, 255, 255, .09);
      --line-soft: rgba(255, 255, 255, .06);
      --radius-lg: 20px;
      --radius: 16px;
      --radius-sm: 12px;
      --shadow: 0 18px 48px rgba(0, 0, 0, .45);
      --shadow-hover: 0 26px 64px rgba(0, 0, 0, .55);
      --glow: 0 0 0 1px rgba(51, 230, 192, .35), 0 10px 32px rgba(51, 230, 192, .22);
      --container: 1240px;
      --ease: cubic-bezier(.2, .8, .2, 1);
      --bs-body-bg: #05080D;
      --bs-body-color: #EAF2F7;
      --bs-border-color: rgba(255, 255, 255, .09);
      --bs-primary: #33E6C0;
      --bs-primary-rgb: 51, 230, 192;
      --bs-link-color: #33E6C0;
      --bs-link-hover-color: #5CF0D1;
    }

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

    html { scroll-behavior: smooth; }

    body {
      margin: 0;
      min-height: 100vh;
      color: var(--text);
      background:
        radial-gradient(1000px 520px at 12% -8%, rgba(51, 230, 192, .10), transparent 62%),
        radial-gradient(900px 480px at 96% 14%, rgba(76, 141, 255, .08), transparent 60%),
        var(--bg);
      font-family: "HarmonyOS Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
      font-size: 16px;
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    img { max-width: 100%; display: block; }
    a { color: var(--brand); text-decoration: none; transition: color .2s var(--ease); }
    a:hover { color: #6DF4D8; }
    button, input, textarea, select { font: inherit; }
    button { cursor: pointer; }
    ul, ol { margin: 0; padding: 0; }
    p { margin: 0; }
    h1, h2, h3, h4, h5, h6 { margin: 0; color: var(--text); line-height: 1.25; }
    :focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }

    .container {
      width: 100%;
      max-width: var(--container);
      margin: 0 auto;
      padding-left: 32px;
      padding-right: 32px;
    }

    .mono {
      font-family: "JetBrains Mono", Consolas, "SFMono-Regular", monospace;
      font-variant-numeric: tabular-nums;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      color: var(--text);
      line-height: 1;
      flex: 0 0 auto;
    }
    .brand:hover { color: var(--text); }
    .brand-mark {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-width: 44px;
      height: 36px;
      padding: 0 8px;
      border-radius: 10px;
      background: linear-gradient(135deg, rgba(51, 230, 192, .22), rgba(51, 230, 192, .06));
      border: 1px solid rgba(51, 230, 192, .35);
      color: var(--brand);
      font-family: "JetBrains Mono", Consolas, monospace;
      font-size: 18px;
      font-weight: 700;
      letter-spacing: -.04em;
      box-shadow: 0 0 22px rgba(51, 230, 192, .12);
    }
    .brand-name {
      font-size: 20px;
      font-weight: 700;
      letter-spacing: .02em;
    }

    .site-head {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(5, 8, 13, .82);
      border-bottom: 1px solid var(--line-soft);
      backdrop-filter: blur(18px) saturate(120%);
      -webkit-backdrop-filter: blur(18px) saturate(120%);
    }

    .head-bar {
      min-height: 72px;
      display: flex;
      align-items: center;
      gap: 24px;
    }

    .nav-cards {
      flex: 1 1 auto;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      min-width: 0;
    }

    .nav-item-card {
      position: relative;
      display: inline-flex;
      align-items: center;
      gap: 7px;
      min-height: 44px;
      padding: 9px 11px;
      border-radius: 12px;
      border: 1px solid transparent;
      color: var(--muted);
      font-size: 14px;
      font-weight: 600;
      white-space: nowrap;
      transition: color .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease);
    }
    .nav-item-card svg {
      width: 18px;
      height: 18px;
      fill: none;
      stroke: currentColor;
      stroke-width: 1.7;
      stroke-linecap: round;
      stroke-linejoin: round;
      flex: 0 0 auto;
    }
    .nav-item-card::before {
      content: "";
      position: absolute;
      left: 12px;
      right: 12px;
      top: 0;
      height: 2px;
      border-radius: 2px;
      background: var(--brand);
      opacity: 0;
      transform: scaleX(.35);
      transition: opacity .2s var(--ease), transform .2s var(--ease);
    }
    .nav-item-card:hover,
    .nav-item-card:focus-visible {
      color: var(--text);
      background: rgba(255, 255, 255, .045);
      border-color: var(--line);
      transform: translateY(-1px);
    }
    .nav-item-card:hover::before { opacity: .75; transform: scaleX(1); }
    .nav-item-card.is-active {
      color: var(--text);
      background: rgba(51, 230, 192, .09);
      border-color: rgba(51, 230, 192, .18);
    }
    .nav-item-card.is-active::before { opacity: 1; transform: scaleX(1); }
    .nav-item-card.is-active::after {
      content: "";
      position: absolute;
      left: 0;
      top: 12px;
      bottom: 12px;
      width: 3px;
      border-radius: 0 3px 3px 0;
      background: var(--brand);
    }

    .head-actions {
      display: flex;
      align-items: center;
      gap: 10px;
      flex: 0 0 auto;
    }

    .btn-glow,
    .btn-ghost,
    .btn-quiet {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 44px;
      padding: 12px 22px;
      border-radius: var(--radius-sm);
      font-size: 15px;
      font-weight: 700;
      line-height: 1.1;
      border: 1px solid transparent;
      transition: transform .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
    }
    .btn-glow {
      color: #04120F;
      background: linear-gradient(100deg, var(--brand), #6CF2D7);
      box-shadow: 0 10px 30px rgba(51, 230, 192, .18);
    }
    .btn-glow:hover {
      color: #04120F;
      transform: translateY(-2px);
      filter: brightness(1.06);
      box-shadow: 0 0 0 1px rgba(51, 230, 192, .45), 0 16px 40px rgba(51, 230, 192, .26);
    }
    .btn-glow:active { transform: translateY(1px); }
    .btn-glow .arw { transition: transform .2s var(--ease); }
    .btn-glow:hover .arw { transform: translateX(4px); }
    .btn-ghost {
      color: var(--text);
      background: transparent;
      border-color: var(--line);
    }
    .btn-ghost:hover {
      color: var(--brand);
      border-color: var(--brand-line);
      background: rgba(51, 230, 192, .08);
      transform: translateY(-2px);
    }
    .btn-quiet {
      color: var(--brand);
      background: transparent;
      border-color: transparent;
      padding: 8px 4px;
      min-height: 40px;
    }
    .btn-quiet:hover { color: #75F6DC; }
    .btn-quiet .arw { transition: transform .2s var(--ease); }
    .btn-quiet:hover .arw { transform: translateX(4px); }

    .btn-sm { min-height: 40px; padding: 9px 16px; font-size: 14px; }

    .nav-toggle {
      display: none;
      width: 44px;
      height: 44px;
      align-items: center;
      justify-content: center;
      border-radius: 12px;
      border: 1px solid var(--line);
      background: rgba(255, 255, 255, .035);
      color: var(--text);
    }
    .nav-toggle svg {
      width: 22px;
      height: 22px;
      fill: none;
      stroke: currentColor;
      stroke-width: 1.8;
      stroke-linecap: round;
    }

    .mobile-drawer {
      display: none;
      position: fixed;
      z-index: 999;
      inset: 72px 0 0;
      padding: 18px;
      background: rgba(5, 8, 13, .97);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      transform: translateY(-110%);
      transition: transform .28s var(--ease);
      overflow-y: auto;
    }
    .mobile-drawer.open { transform: translateY(0); }
    .drawer-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 4px 2px 16px;
      border-bottom: 1px dashed var(--line);
      margin-bottom: 16px;
    }
    .drawer-head span { color: var(--muted); font-size: 13px; }
    .drawer-close {
      width: 40px;
      height: 40px;
      border-radius: 10px;
      border: 1px solid var(--line);
      background: transparent;
      color: var(--text);
      font-size: 20px;
      line-height: 1;
    }
    .drawer-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 10px;
    }
    .drawer-grid .nav-item-card {
      min-height: 58px;
      justify-content: flex-start;
      background: rgba(255, 255, 255, .035);
      border-color: var(--line-soft);
      white-space: normal;
    }
    .drawer-cta { width: 100%; margin-top: 18px; }

    .article-hero {
      position: relative;
      padding: 52px 0 42px;
      overflow: hidden;
      border-bottom: 1px solid var(--line-soft);
      background:
        linear-gradient(180deg, rgba(5, 8, 13, .30), rgba(5, 8, 13, .94)),
        url("/assets/images/backpic/back-2.webp") center / cover no-repeat;
    }
    .article-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      pointer-events: none;
      background-image:
        linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px);
      background-size: 32px 32px;
      mask-image: radial-gradient(ellipse at 50% 20%, #000 0%, transparent 72%);
      -webkit-mask-image: radial-gradient(ellipse at 50% 20%, #000 0%, transparent 72%);
      opacity: .55;
    }
    .article-hero .container { position: relative; z-index: 1; }

    .breadcrumbs {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
      color: var(--dim);
      font-size: 13px;
      margin-bottom: 20px;
    }
    .breadcrumbs a { color: var(--muted); }
    .breadcrumbs a:hover { color: var(--brand); }
    .breadcrumbs .sep { color: rgba(255, 255, 255, .22); }
    .breadcrumbs .current { color: var(--muted); }

    .article-kicker {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 10px;
      margin-bottom: 16px;
    }
    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 7px 13px;
      border-radius: 999px;
      background: var(--brand-soft);
      color: var(--brand);
      border: 1px solid rgba(51, 230, 192, .20);
      font-size: 13px;
      font-weight: 700;
      line-height: 1;
    }
    .badge-amber {
      background: rgba(255, 180, 84, .10);
      color: var(--amber);
      border-color: rgba(255, 180, 84, .24);
    }

    .article-title {
      font-size: clamp(2rem, 4.2vw, 3.25rem);
      line-height: 1.18;
      letter-spacing: -.01em;
      font-weight: 700;
      max-width: 980px;
      margin-bottom: 20px;
      overflow-wrap: anywhere;
    }

    .meta-row {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 10px 18px;
      color: var(--muted);
      font-size: 13px;
    }
    .meta-row .dot {
      width: 4px;
      height: 4px;
      border-radius: 50%;
      background: rgba(255, 255, 255, .25);
    }
    .meta-row time { color: var(--text); }

    .share-row {
      display: flex;
      align-items: center;
      gap: 8px;
      margin-left: auto;
    }
    .share-btn {
      width: 38px;
      height: 38px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 10px;
      border: 1px solid var(--line);
      background: rgba(255, 255, 255, .035);
      color: var(--muted);
      transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
    }
    .share-btn:hover {
      color: var(--brand);
      border-color: var(--brand-line);
      background: rgba(51, 230, 192, .08);
    }
    .share-btn svg {
      width: 17px;
      height: 17px;
      fill: none;
      stroke: currentColor;
      stroke-width: 1.7;
      stroke-linecap: round;
      stroke-linejoin: round;
    }

    .article-main { padding: clamp(42px, 6vw, 72px) 0; }

    .article-grid {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 350px;
      gap: 32px;
      align-items: start;
    }

    .article-paper {
      background: linear-gradient(160deg, rgba(255, 255, 255, .055), rgba(255, 255, 255, .018));
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow);
      padding: clamp(22px, 3.2vw, 44px);
      min-width: 0;
    }

    .article-body {
      max-width: 780px;
      color: #D8E4EC;
      font-size: 1rem;
      line-height: 1.9;
      overflow-wrap: anywhere;
    }
    .article-body > * + * { margin-top: 1.18em; }
    .article-body h2 {
      margin-top: 2.2em;
      margin-bottom: .75em;
      padding-left: 15px;
      border-left: 4px solid var(--brand);
      font-size: clamp(1.5rem, 2.6vw, 2.1rem);
      font-weight: 650;
      line-height: 1.35;
    }
    .article-body h3 {
      margin-top: 1.8em;
      margin-bottom: .65em;
      font-size: 1.25rem;
      font-weight: 600;
      color: var(--text);
    }
    .article-body h4 {
      margin-top: 1.5em;
      margin-bottom: .5em;
      font-size: 1.05rem;
      color: var(--text);
    }
    .article-body p { color: #C9D8E2; }
    .article-body a {
      color: var(--brand);
      text-decoration: underline;
      text-underline-offset: 3px;
    }
    .article-body strong { color: var(--text); }
    .article-body ul,
    .article-body ol {
      padding-left: 1.35em;
      color: #C9D8E2;
    }
    .article-body li { margin: .4em 0; padding-left: .2em; }
    .article-body ul li::marker { color: var(--brand); }
    .article-body ol li::marker { color: var(--brand); font-family: "JetBrains Mono", Consolas, monospace; }
    .article-body blockquote {
      margin: 1.8em 0;
      padding: 18px 20px;
      border-left: 3px solid var(--brand);
      border-radius: 0 14px 14px 0;
      background: rgba(51, 230, 192, .075);
      color: #DCEAF2;
    }
    .article-body blockquote p { margin: 0; }
    .article-body img {
      max-width: 100%;
      height: auto;
      border-radius: 14px;
      border: 1px solid var(--line);
      margin: 1.6em auto;
      background: #0B1219;
    }
    .article-body figure { margin: 1.8em 0; }
    .article-body figcaption {
      text-align: center;
      color: var(--dim);
      font-size: .875rem;
      margin-top: .8em;
    }
    .article-body table {
      width: 100%;
      border-collapse: collapse;
      margin: 1.8em 0;
      font-size: .94rem;
      border: 1px solid var(--line);
      border-radius: 12px;
      overflow: hidden;
    }
    .article-body th,
    .article-body td {
      padding: 12px 14px;
      border-bottom: 1px solid var(--line-soft);
      text-align: left;
      vertical-align: top;
    }
    .article-body th {
      background: rgba(51, 230, 192, .08);
      color: var(--text);
      font-weight: 700;
    }
    .article-body tr:nth-child(even) td { background: rgba(255, 255, 255, .022); }
    .article-body code {
      font-family: "JetBrains Mono", Consolas, monospace;
      font-size: .9em;
      color: var(--brand);
      background: rgba(51, 230, 192, .08);
      padding: 2px 6px;
      border-radius: 6px;
    }

    .article-empty {
      min-height: 260px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 18px;
      text-align: center;
      border: 1px dashed var(--line);
      border-radius: var(--radius);
      background: rgba(255, 255, 255, .02);
      padding: 36px 20px;
    }
    .article-empty h2 {
      margin: 0;
      padding: 0;
      border: 0;
      font-size: 1.5rem;
    }

    .article-endline {
      margin-top: 38px;
      padding-top: 24px;
      border-top: 1px dashed var(--line);
    }
    .tag-list {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px;
      margin-bottom: 22px;
    }
    .tag-list span {
      display: inline-flex;
      align-items: center;
      min-height: 30px;
      padding: 5px 11px;
      border-radius: 999px;
      border: 1px solid var(--line);
      background: rgba(255, 255, 255, .03);
      color: var(--muted);
      font-size: 12px;
      font-weight: 600;
    }

    .read-next {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 14px;
    }
    .read-next-card {
      display: flex;
      flex-direction: column;
      gap: 8px;
      padding: 18px;
      border-radius: 14px;
      border: 1px solid var(--line);
      background: rgba(255, 255, 255, .028);
      color: var(--text);
      transition: transform .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
    }
    .read-next-card:hover {
      transform: translateY(-3px);
      border-color: rgba(51, 230, 192, .30);
      background: rgba(51, 230, 192, .055);
      color: var(--text);
    }
    .read-next-card small {
      color: var(--dim);
      font-size: 12px;
    }
    .read-next-card strong {
      font-size: 15px;
      line-height: 1.5;
      font-weight: 650;
    }
    .read-next-card .arw { color: var(--brand); margin-top: auto; }

    .article-side { position: relative; }
    .side-sticky {
      position: sticky;
      top: 94px;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .side-card {
      background: linear-gradient(160deg, rgba(255, 255, 255, .055), rgba(255, 255, 255, .018));
      border: 1px solid var(--line);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      padding: 20px;
    }
    .side-title {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 10px;
      margin-bottom: 14px;
      padding-bottom: 12px;
      border-bottom: 1px solid var(--line-soft);
    }
    .side-title h2,
    .side-title h3 {
      font-size: 15px;
      font-weight: 700;
      margin: 0;
    }
    .side-title .mono { color: var(--brand); font-size: 11px; letter-spacing: .08em; }

    .side-nav { display: flex; flex-direction: column; gap: 4px; }
    .side-nav a {
      display: flex;
      align-items: center;
      gap: 9px;
      padding: 9px 10px;
      border-radius: 9px;
      color: var(--muted);
      font-size: 13px;
      border-left: 2px solid transparent;
      transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
    }
    .side-nav a::before {
      content: "";
      width: 5px;
      height: 5px;
      border-radius: 50%;
      background: currentColor;
      opacity: .65;
      flex: 0 0 auto;
    }
    .side-nav a:hover,
    .side-nav a.is-current {
      color: var(--brand);
      background: rgba(51, 230, 192, .07);
      border-left-color: var(--brand);
    }

    .side-hot { display: flex; flex-direction: column; gap: 2px; }
    .side-hot a {
      display: block;
      padding: 11px 2px;
      border-bottom: 1px dashed var(--line-soft);
      color: #CFDDE6;
      font-size: 13px;
      line-height: 1.55;
    }
    .side-hot a:last-child { border-bottom: 0; padding-bottom: 2px; }
    .side-hot a:hover { color: var(--brand); }
    .side-hot span {
      display: block;
      margin-top: 4px;
      color: var(--dim);
      font-size: 11px;
    }

    .side-cta {
      position: relative;
      overflow: hidden;
      padding: 22px;
      border-radius: var(--radius);
      border: 1px solid rgba(51, 230, 192, .24);
      background:
        linear-gradient(160deg, rgba(5, 8, 13, .35), rgba(5, 8, 13, .92)),
        url("/assets/images/coverpic/cover-2.png") center / cover no-repeat;
      box-shadow: var(--glow);
    }
    .side-cta::after {
      content: "";
      position: absolute;
      inset: 0;
      background: radial-gradient(circle at 90% 10%, rgba(51, 230, 192, .20), transparent 50%);
      pointer-events: none;
    }
    .side-cta > * { position: relative; z-index: 1; }
    .side-cta h3 { font-size: 17px; margin-bottom: 8px; }
    .side-cta p { color: var(--muted); font-size: 13px; line-height: 1.65; margin-bottom: 14px; }
    .side-cta .btn-glow { width: 100%; min-height: 42px; padding: 10px 14px; font-size: 14px; }

    .related-section {
      padding: clamp(46px, 7vw, 84px) 0;
      border-top: 1px solid var(--line-soft);
      background: linear-gradient(180deg, rgba(10, 17, 25, .6), rgba(5, 8, 13, 0));
    }
    .section-head {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 18px;
      margin-bottom: 28px;
    }
    .section-head h2 {
      font-size: clamp(1.5rem, 2.6vw, 2.1rem);
      font-weight: 650;
      margin-bottom: 6px;
    }
    .section-head p { color: var(--muted); font-size: 14px; }

    .related-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 20px;
    }
    .related-card {
      display: flex;
      flex-direction: column;
      overflow: hidden;
      border-radius: var(--radius);
      border: 1px solid var(--line);
      background: linear-gradient(160deg, rgba(255, 255, 255, .052), rgba(255, 255, 255, .018));
      box-shadow: var(--shadow);
      transition: transform .2s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease);
    }
    .related-card:hover {
      transform: translateY(-4px);
      border-color: rgba(51, 230, 192, .30);
      box-shadow: var(--shadow-hover);
    }
    .related-thumb {
      position: relative;
      aspect-ratio: 16 / 10;
      background: #0B1219;
      overflow: hidden;
    }
    .related-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .45s var(--ease);
    }
    .related-card:hover .related-thumb img { transform: scale(1.045); }
    .related-thumb::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 45%, rgba(5, 8, 13, .65));
      pointer-events: none;
    }
    .related-body { padding: 18px; display: flex; flex-direction: column; gap: 9px; flex: 1; }
    .related-body h3 { font-size: 17px; line-height: 1.5; font-weight: 650; }
    .related-body p { color: var(--muted); font-size: 13px; line-height: 1.7; }
    .related-foot {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 10px;
      margin-top: auto;
      padding-top: 8px;
      color: var(--dim);
      font-size: 12px;
    }
    .related-foot .arw { color: var(--brand); font-size: 16px; transition: transform .2s var(--ease); }
    .related-card:hover .related-foot .arw { transform: translateX(4px); }

    .faq-section { padding: clamp(44px, 6vw, 76px) 0; }
    .faq-wrap {
      display: grid;
      grid-template-columns: 380px minmax(0, 1fr);
      gap: 32px;
      align-items: start;
    }
    .faq-intro h2 {
      font-size: clamp(1.5rem, 2.6vw, 2.1rem);
      margin-bottom: 12px;
    }
    .faq-intro p { color: var(--muted); font-size: 14px; line-height: 1.8; }
    .faq-list { display: flex; flex-direction: column; gap: 10px; }
    .faq-item {
      border-radius: 14px;
      border: 1px solid var(--line);
      background: rgba(255, 255, 255, .028);
      overflow: hidden;
      transition: background .2s var(--ease), border-color .2s var(--ease);
    }
    .faq-item[open] {
      background: rgba(51, 230, 192, .055);
      border-color: rgba(51, 230, 192, .22);
    }
    .faq-item summary {
      list-style: none;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 17px 18px;
      font-size: 15px;
      font-weight: 650;
      color: var(--text);
    }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-item summary::after {
      content: "+";
      width: 26px;
      height: 26px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 8px;
      border: 1px solid var(--line);
      color: var(--brand);
      font-size: 18px;
      line-height: 1;
      flex: 0 0 auto;
      transition: transform .2s var(--ease), background .2s var(--ease);
    }
    .faq-item[open] summary::after {
      content: "+";
      transform: rotate(45deg);
      background: rgba(51, 230, 192, .10);
    }
    .faq-answer {
      padding: 0 18px 18px;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.8;
      border-left: 3px solid transparent;
    }
    .faq-item[open] .faq-answer { border-left-color: var(--brand); }

    .cta-band { padding: clamp(46px, 7vw, 86px) 0 0; }
    .cta-card {
      position: relative;
      overflow: hidden;
      border-radius: var(--radius-lg);
      border: 1px solid rgba(51, 230, 192, .25);
      background:
        linear-gradient(120deg, rgba(51, 230, 192, .12), rgba(76, 141, 255, .07) 55%, rgba(5, 8, 13, .9)),
        var(--panel);
      box-shadow: var(--glow);
      padding: clamp(28px, 5vw, 54px);
    }
    .cta-card::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .05) 1px, transparent 1px);
      background-size: 32px 32px;
      mask-image: radial-gradient(circle at 80% 20%, #000, transparent 70%);
      -webkit-mask-image: radial-gradient(circle at 80% 20%, #000, transparent 70%);
      opacity: .55;
      pointer-events: none;
    }
    .cta-inner {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 26px;
      align-items: center;
    }
    .cta-inner h2 {
      font-size: clamp(1.6rem, 3vw, 2.35rem);
      margin-bottom: 10px;
    }
    .cta-inner p { color: var(--muted); max-width: 650px; }
    .cta-actions { display: flex; flex-wrap: wrap; gap: 12px; }

    .site-foot {
      margin-top: clamp(52px, 8vw, 96px);
      padding: 54px 0 22px;
      background: #04070B;
      border-top: 1px solid var(--line-soft);
    }
    .foot-grid {
      display: grid;
      grid-template-columns: 1.8fr .8fr .8fr 1.5fr;
      gap: 34px;
      padding-bottom: 34px;
      border-bottom: 1px dashed var(--line);
    }
    .foot-brand .brand { margin-bottom: 14px; }
    .foot-brand p {
      color: var(--muted);
      font-size: 13px;
      line-height: 1.75;
      max-width: 330px;
      margin-bottom: 16px;
    }
    .foot-tags { display: flex; flex-wrap: wrap; gap: 7px; }
    .foot-tags span {
      padding: 5px 10px;
      border-radius: 999px;
      border: 1px solid var(--line);
      color: var(--muted);
      font-size: 11px;
      background: rgba(255, 255, 255, .025);
    }
    .foot-col h4 {
      font-size: 14px;
      font-weight: 700;
      margin-bottom: 14px;
      color: var(--text);
    }
    .foot-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
    .foot-col ul a {
      color: var(--muted);
      font-size: 13px;
      transition: color .2s var(--ease), padding-left .2s var(--ease);
    }
    .foot-col ul a:hover { color: var(--brand); padding-left: 4px; }
    .foot-contact {
      display: flex;
      flex-direction: column;
      gap: 7px;
      color: var(--muted);
      font-size: 12px;
      margin-bottom: 16px;
    }
    .foot-contact b { color: var(--text); font-weight: 600; }
    .foot-form { display: flex; flex-direction: column; gap: 9px; }
    .foot-form label { color: var(--muted); font-size: 11px; }
    .foot-form input {
      width: 100%;
      min-height: 44px;
      padding: 10px 12px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--line);
      background: var(--panel-2);
      color: var(--text);
      font-size: 13px;
      transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
    }
    .foot-form input::placeholder { color: var(--dim); }
    .foot-form input:focus {
      outline: none;
      border-color: var(--brand);
      box-shadow: 0 0 0 3px rgba(51, 230, 192, .18);
    }
    .foot-form .btn-glow { width: 100%; min-height: 42px; padding: 10px 14px; font-size: 13px; }
    .foot-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 12px;
      padding-top: 20px;
      color: var(--dim);
      font-size: 12px;
    }
    .to-top { color: var(--muted); }
    .to-top:hover { color: var(--brand); }

    @media (max-width: 1199px) {
      .article-grid { grid-template-columns: minmax(0, 1fr) 320px; gap: 24px; }
      .nav-item-card { padding: 9px 9px; font-size: 13px; }
      .head-bar { gap: 16px; }
    }

    @media (max-width: 1099px) {
      .nav-cards { display: none; }
      .nav-toggle { display: inline-flex; }
      .mobile-drawer { display: block; }
      .head-bar { justify-content: space-between; }
    }

    @media (max-width: 991px) {
      .container { padding-left: 24px; padding-right: 24px; }
      .article-grid { grid-template-columns: minmax(0, 1fr); }
      .side-sticky { position: static; }
      .article-side { order: 2; }
      .article-paper { order: 1; }
      .related-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
      .faq-wrap { grid-template-columns: 1fr; gap: 22px; }
      .foot-grid { grid-template-columns: 1.6fr 1fr 1fr; }
      .foot-col:last-child { grid-column: 1 / -1; }
      .cta-inner { grid-template-columns: 1fr; }
    }

    @media (max-width: 767px) {
      .container { padding-left: 18px; padding-right: 18px; }
      .head-bar { min-height: 66px; }
      .brand-mark { min-width: 40px; height: 34px; font-size: 16px; }
      .brand-name { font-size: 18px; }
      .head-actions .btn-glow { display: none; }
      .article-hero { padding: 36px 0 32px; }
      .article-title { font-size: clamp(1.75rem, 7vw, 2.5rem); }
      .share-row { margin-left: 0; width: 100%; }
      .article-paper { padding: 22px 18px; }
      .read-next { grid-template-columns: 1fr; }
      .related-grid { grid-template-columns: 1fr; }
      .section-head { align-items: flex-start; flex-direction: column; gap: 8px; }
      .foot-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
      .foot-brand { grid-column: 1 / -1; }
      .foot-col:last-child { grid-column: 1 / -1; }
      .foot-bottom { flex-direction: column; align-items: flex-start; }
      .cta-actions .btn-glow,
      .cta-actions .btn-ghost { width: 100%; }
    }

    @media (max-width: 520px) {
      .drawer-grid { grid-template-columns: 1fr; }
      .article-body { font-size: .96rem; }
      .article-body table { display: block; overflow-x: auto; white-space: nowrap; }
      .meta-row { gap: 8px 12px; }
      .related-body h3 { font-size: 16px; }
      .foot-grid { grid-template-columns: 1fr; }
      .foot-brand,
      .foot-col:last-child { grid-column: auto; }
    }

    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after {
        animation-duration: .001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .001ms !important;
      }
    }

/* roulang page: category2 */
:root{
  --bg:#05080D;
  --bg-2:#0A1119;
  --panel:#0D1620;
  --panel-2:#0B141D;
  --main:#33E6C0;
  --main-deep:#16B394;
  --main-mist:rgba(51,230,192,0.12);
  --signal:#4C8DFF;
  --amber:#FFB454;
  --txt:#EAF2F7;
  --txt-2:#9FB2C2;
  --txt-3:#66798B;
  --line:rgba(255,255,255,0.09);
  --line-soft:rgba(255,255,255,0.06);
  --btn-ink:#04120F;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --sh-1:0 18px 48px rgba(0,0,0,0.45);
  --sh-2:0 26px 64px rgba(0,0,0,0.55);
  --sh-glow:0 0 0 1px rgba(51,230,192,0.35),0 10px 32px rgba(51,230,192,0.22);
  --ease:cubic-bezier(.2,.8,.2,1);
  --mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Consolas,"Liberation Mono",monospace;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--txt);
  font-family:"HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:1rem;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease);}
a:hover{color:var(--main);}
button,input{font-family:inherit;font-size:inherit;}
input{color:var(--txt);}
h1,h2,h3,h4{margin:0;font-weight:650;letter-spacing:-0.01em;color:var(--txt);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--main);outline-offset:2px;}
::selection{background:rgba(51,230,192,.28);color:#fff;}

.container{max-width:1240px !important;padding-left:32px;padding-right:32px;}
@media (max-width:991px){.container{padding-left:24px;padding-right:24px;}}
@media (max-width:576px){.container{padding-left:18px;padding-right:18px;}}

/* ============ 顶部导航 ============ */
.site-head{position:sticky;top:0;z-index:1000;padding:14px 0 0;}
.head-card{
  display:flex;align-items:center;gap:14px;
  padding:12px 16px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(255,255,255,0.07),rgba(255,255,255,0.02));
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
  box-shadow:var(--sh-1);
  transition:padding .25s var(--ease),background-color .25s var(--ease);
}
.site-head.is-scrolled .head-card{padding:8px 16px;background:rgba(7,12,18,0.92);}
.brand{display:inline-flex;align-items:baseline;gap:4px;flex-shrink:0;}
.brand-mark{
  font-family:var(--mono);font-weight:700;font-size:1.32rem;letter-spacing:.02em;
  color:var(--main);text-shadow:0 0 18px rgba(51,230,192,.4);
}
.brand-name{font-size:1.2rem;font-weight:700;letter-spacing:.04em;color:var(--txt);}
.nav-cards{display:flex;align-items:center;gap:6px;margin-left:auto;flex-wrap:nowrap;}
.nav-item-card{
  position:relative;display:inline-flex;align-items:center;gap:7px;
  padding:9px 13px;border-radius:var(--r-sm);
  font-size:.875rem;color:var(--txt-2);
  border:1px solid transparent;white-space:nowrap;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.nav-item-card svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;opacity:.85;}
.nav-item-card::before{
  content:"";position:absolute;left:12px;right:12px;top:0;height:2px;border-radius:2px;
  background:var(--main);opacity:0;transition:opacity .2s var(--ease);
}
.nav-item-card:hover{background:rgba(255,255,255,0.05);color:var(--txt);border-color:var(--line-soft);}
.nav-item-card:hover::before{opacity:.55;}
.nav-item-card.is-active{background:var(--main-mist);color:var(--main);border-color:rgba(51,230,192,.22);}
.nav-item-card.is-active::before{opacity:1;}
.nav-item-card.is-active::after{content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;border-radius:3px;background:var(--main);}
.head-cta{flex-shrink:0;margin-left:6px;}
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border:0;border-radius:var(--r-sm);
  background:linear-gradient(135deg,var(--main),var(--main-deep));
  color:var(--btn-ink);font-weight:650;font-size:.9375rem;letter-spacing:.01em;
  box-shadow:0 8px 24px rgba(51,230,192,.22);
  cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),filter .2s var(--ease);
}
.btn-glow .arw{transition:transform .2s var(--ease);}
.btn-glow:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 0 0 1px rgba(51,230,192,.35),0 12px 34px rgba(51,230,192,.3);color:var(--btn-ink);}
.btn-glow:hover .arw{transform:translateX(4px);}
.btn-glow:active{transform:translateY(-1px);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:transparent;color:var(--txt);
  font-weight:600;font-size:.9375rem;cursor:pointer;
  transition:border-color .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.btn-ghost:hover{border-color:var(--main);background:rgba(51,230,192,.08);color:var(--main);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(-1px);}
.btn-link-arrow{
  display:inline-flex;align-items:center;gap:6px;color:var(--main);font-weight:600;font-size:.9375rem;
  border-bottom:1px solid transparent;padding-bottom:2px;
}
.btn-link-arrow .arw{transition:transform .2s var(--ease);}
.btn-link-arrow:hover{border-bottom-color:rgba(51,230,192,.6);color:var(--main);}
.btn-link-arrow:hover .arw{transform:translateX(4px);}

.burger{
  display:none;width:44px;height:44px;margin-left:auto;
  border-radius:var(--r-sm);border:1px solid var(--line);background:rgba(255,255,255,.03);
  align-items:center;justify-content:center;cursor:pointer;
}
.burger span{display:block;width:18px;height:2px;background:var(--txt);border-radius:2px;position:relative;}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--txt);border-radius:2px;}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}

.drawer{
  position:fixed;inset:0;z-index:1200;display:none;
  background:rgba(4,7,11,0.96);backdrop-filter:blur(14px);
  padding:20px 18px 90px;overflow-y:auto;
}
.drawer.is-open{display:block;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-close{width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--txt);font-size:1.4rem;line-height:1;cursor:pointer;}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.drawer-grid .nav-item-card{width:100%;justify-content:flex-start;padding:14px;border:1px solid var(--line);background:rgba(255,255,255,.03);font-size:.9375rem;}
.drawer-foot{position:fixed;left:18px;right:18px;bottom:18px;}
.drawer-foot .btn-glow{width:100%;}

@media (max-width:1199px){
  .nav-item-card{padding:8px 10px;font-size:.8125rem;gap:6px;}
  .nav-item-card svg{width:16px;height:16px;}
  .head-cta .btn-glow{padding:10px 16px;font-size:.875rem;}
}
@media (max-width:991px){
  .nav-cards,.head-cta{display:none;}
  .burger{display:flex;}
}

/* ============ 通用板块 ============ */
.section{padding:clamp(56px,8vw,104px) 0;}
.section-tight{padding:clamp(44px,6vw,76px) 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mono);font-size:.75rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--main);margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--main),transparent);}
h2.sec-title{font-size:clamp(1.5rem,2.6vw,2.1rem);line-height:1.28;font-weight:650;}
.sec-sub{margin-top:12px;color:var(--txt-2);font-size:1rem;max-width:680px;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:36px;}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  padding:clamp(48px,7vw,84px) 0 clamp(44px,6vw,72px);
  background-image:
    radial-gradient(900px 420px at 12% 0%,rgba(51,230,192,.13),transparent 70%),
    linear-gradient(180deg,rgba(5,8,13,.6),var(--bg) 78%),
    url("/assets/images/backpic/back-1.webp");
  background-size:cover,cover,cover;
  background-position:center,center,center;
  background-repeat:no-repeat;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:32px 32px;
  mask-image:radial-gradient(circle at 50% 20%,rgba(0,0,0,.9),transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 20%,rgba(0,0,0,.9),transparent 78%);
  opacity:.6;
}
.hero .container{position:relative;z-index:2;}
.crumb{display:flex;align-items:center;gap:8px;font-size:.8125rem;color:var(--txt-3);margin-bottom:20px;flex-wrap:wrap;}
.crumb a{color:var(--txt-3);}
.crumb a:hover{color:var(--main);}
.crumb .sep{opacity:.5;}
.crumb .now{color:var(--txt-2);}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
.badge-cat{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:999px;
  background:var(--main-mist);color:var(--main);
  font-size:.8125rem;font-weight:600;letter-spacing:.02em;
  border:1px solid rgba(51,230,192,.24);
}
.hero h1{
  font-size:clamp(2rem,4.2vw,3.1rem);line-height:1.18;font-weight:700;letter-spacing:-0.01em;
  margin:20px 0 16px;
}
.hero h1 em{font-style:normal;color:var(--main);}
.hero-lead{color:var(--txt-2);font-size:1.0625rem;max-width:560px;}
.hero-stats{display:flex;gap:36px;flex-wrap:wrap;margin-top:34px;}
.hero-stat .num{font-family:var(--mono);font-size:1.9rem;font-weight:700;color:var(--main);line-height:1.1;letter-spacing:-.02em;}
.hero-stat .cap{font-size:.75rem;color:var(--txt-3);letter-spacing:.08em;margin-top:6px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px;}
.hero-visual{position:relative;}
.hero-shot{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-2);
  background:#0B1219;
}
.hero-shot img{width:100%;aspect-ratio:16/10;object-fit:cover;opacity:.92;}
.hero-shot::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(5,8,13,.05) 20%,rgba(5,8,13,.82) 100%);
}
.hero-float{
  position:absolute;left:-18px;bottom:-20px;max-width:60%;
  padding:14px 18px;border-radius:var(--r-sm);
  background:linear-gradient(160deg,rgba(255,255,255,.09),rgba(255,255,255,.03));
  border:1px solid var(--line);backdrop-filter:blur(16px);
  box-shadow:var(--sh-1);
}
.hero-float .k{font-family:var(--mono);font-size:.7rem;letter-spacing:.12em;color:var(--txt-3);}
.hero-float .v{font-family:var(--mono);font-size:1.25rem;color:var(--main);font-weight:700;}
.hero-float .v small{font-size:.75rem;color:var(--txt-2);font-weight:400;margin-left:4px;}

@media (max-width:991px){
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-visual{order:2;}
  .hero-float{left:auto;right:12px;bottom:-16px;max-width:70%;}
}
@media (max-width:576px){
  .hero-stats{gap:22px;}
  .hero-stat .num{font-size:1.6rem;}
  .hero-actions .btn-glow,.hero-actions .btn-ghost{width:100%;}
}

/* ============ 筛选胶囊 ============ */
.chip-row{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:32px;}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;border-radius:999px;
  border:1px solid var(--line);color:var(--txt-2);
  font-size:.875rem;background:rgba(255,255,255,.02);
  cursor:pointer;transition:all .2s var(--ease);
}
.chip:hover{border-color:rgba(51,230,192,.4);color:var(--txt);}
.chip.is-on{
  background:linear-gradient(135deg,rgba(51,230,192,.9),rgba(22,179,148,.9));
  color:var(--btn-ink);border-color:transparent;font-weight:650;
  box-shadow:0 8px 22px rgba(51,230,192,.22);
}

/* ============ Bento 网格 ============ */
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:24px;}
.bento-card{
  position:relative;overflow:hidden;
  display:flex;flex-direction:column;
  padding:26px 24px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.bento-card::after{
  content:"";position:absolute;right:-40px;top:-40px;width:120px;height:120px;border-radius:50%;
  background:radial-gradient(circle,rgba(51,230,192,.22),transparent 70%);
  opacity:0;transition:opacity .25s var(--ease);
}
.bento-card:hover{transform:translateY(-4px);border-color:rgba(51,230,192,.3);box-shadow:var(--sh-2);}
.bento-card:hover::after{opacity:1;}
.bento-card.large{grid-column:span 3;grid-row:span 2;padding:32px 30px;}
.bento-card.mid{grid-column:span 3;}
.bento-card.small{grid-column:span 2;padding:22px 20px;}
.card-no{
  font-family:var(--mono);font-size:.75rem;letter-spacing:.14em;color:var(--txt-3);
  display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;
}
.card-no::after{content:"";width:26px;height:1px;background:var(--line);}
.bento-icon{
  width:42px;height:42px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(51,230,192,.1);border:1px solid rgba(51,230,192,.22);color:var(--main);margin-bottom:16px;
}
.bento-icon svg{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.bento-card h3{font-size:1.25rem;font-weight:600;margin-bottom:8px;}
.bento-card.small h3{font-size:1.0625rem;}
.bento-card p{color:var(--txt-2);font-size:.9375rem;line-height:1.7;margin-bottom:16px;}
.bento-card.small p{font-size:.875rem;margin-bottom:12px;}
.tick-list{display:flex;flex-direction:column;gap:9px;margin-top:auto;}
.tick-list li{display:flex;align-items:flex-start;gap:9px;font-size:.875rem;color:var(--txt-2);line-height:1.6;}
.tick-list li::before{
  content:"";flex:0 0 auto;width:15px;height:15px;margin-top:5px;border-radius:50%;
  background:rgba(51,230,192,.14);
  box-shadow:inset 0 0 0 1px rgba(51,230,192,.35);
  background-image:linear-gradient(45deg,transparent 45%,var(--main) 45%,var(--main) 55%,transparent 55%),
                   linear-gradient(-45deg,transparent 45%,var(--main) 45%,var(--main) 55%,transparent 55%);
  background-size:7px 7px,7px 7px;
  background-position:2px 8px,3px 7px;
  background-repeat:no-repeat;
}
.bento-card.large .tick-list li{font-size:.9375rem;}
.bento-tag{
  display:inline-block;padding:4px 11px;border-radius:999px;font-size:.75rem;
  background:rgba(76,141,255,.12);color:#8FB6FF;border:1px solid rgba(76,141,255,.24);
  margin-bottom:14px;letter-spacing:.02em;
}
.bento-card.large .bento-tag{background:rgba(255,180,84,.12);color:var(--amber);border-color:rgba(255,180,84,.28);}

@media (max-width:1199px){
  .bento-card.large{grid-column:span 6;grid-row:auto;}
  .bento-card.mid{grid-column:span 3;}
  .bento-card.small{grid-column:span 3;}
}
@media (max-width:767px){
  .bento{grid-template-columns:1fr;gap:16px;}
  .bento-card.large,.bento-card.mid,.bento-card.small{grid-column:span 1;grid-row:auto;}
}

/* ============ 阶段选择 ============ */
.stage-list{display:flex;flex-direction:column;gap:14px;}
.stage-row{
  display:grid;grid-template-columns:auto 1fr auto;gap:24px;align-items:center;
  padding:22px 26px;border-radius:var(--r-md);
  border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(255,255,255,.045),rgba(255,255,255,.012));
  transition:border-color .22s var(--ease),transform .22s var(--ease),background-color .22s var(--ease);
}
.stage-row:hover{border-color:rgba(51,230,192,.3);transform:translateX(4px);}
.stage-no{
  font-family:var(--mono);font-size:1.1rem;font-weight:700;color:var(--main);
  width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:var(--main-mist);border:1px solid rgba(51,230,192,.24);
}
.stage-body h3{font-size:1.0625rem;font-weight:600;margin-bottom:6px;}
.stage-body p{color:var(--txt-2);font-size:.9375rem;}
.stage-mods{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end;}
.pill{
  padding:5px 13px;border-radius:999px;font-size:.75rem;
  border:1px solid var(--line);color:var(--txt-2);background:rgba(255,255,255,.03);white-space:nowrap;
}
.pill.on{color:var(--main);border-color:rgba(51,230,192,.3);background:var(--main-mist);}
@media (max-width:991px){
  .stage-row{grid-template-columns:auto 1fr;gap:16px;}
  .stage-mods{grid-column:1/-1;justify-content:flex-start;}
}

/* ============ 流程 ============ */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative;margin-top:8px;}
.flow-step{position:relative;padding:0 20px 0 0;}
.flow-step::before{
  content:"";position:absolute;top:19px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(51,230,192,.45),rgba(51,230,192,.1));
}
.flow-step:last-child::before{background:linear-gradient(90deg,rgba(51,230,192,.45),transparent);}
.flow-dot{
  position:relative;z-index:1;
  width:38px;height:38px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:.8125rem;font-weight:700;color:var(--main);
  background:#0A1119;border:1px solid rgba(51,230,192,.4);
  box-shadow:0 0 0 6px rgba(51,230,192,.06);
  margin-bottom:22px;
}
.flow-step h3{font-size:1.0625rem;font-weight:600;margin-bottom:8px;}
.flow-step p{color:var(--txt-2);font-size:.9rem;}
.flow-step .meta{font-family:var(--mono);font-size:.75rem;color:var(--txt-3);margin-top:12px;letter-spacing:.06em;}
@media (max-width:991px){
  .flow{grid-template-columns:1fr 1fr;gap:32px 0;}
  .flow-step:nth-child(2)::before{background:linear-gradient(90deg,rgba(51,230,192,.45),transparent);}
}
@media (max-width:576px){
  .flow{grid-template-columns:1fr;gap:28px;}
  .flow-step::before{display:none;}
  .flow-step{padding-right:0;}
}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-item{
  border-radius:14px;border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(255,255,255,.05),rgba(255,255,255,.015));
  margin-bottom:14px;overflow:hidden;
  transition:border-color .2s var(--ease),background-color .2s var(--ease);
}
.faq-item[open]{border-color:rgba(51,230,192,.28);background:rgba(51,230,192,.045);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 24px;font-size:1.0625rem;font-weight:600;color:var(--txt);
  position:relative;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:3px;
  background:var(--main);opacity:0;transition:opacity .2s var(--ease);
}
.faq-item[open] summary::before{opacity:1;}
.faq-item summary:hover{color:var(--main);}
.faq-ico{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--main);font-size:1rem;line-height:1;
  transition:transform .25s var(--ease),border-color .25s var(--ease);
}
.faq-item[open] .faq-ico{transform:rotate(45deg);border-color:rgba(51,230,192,.4);}
.faq-body{padding:0 24px 22px;color:var(--txt-2);font-size:.9375rem;line-height:1.8;}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);
  padding:clamp(38px,5vw,62px);
  border:1px solid rgba(51,230,192,.24);
  background:
    radial-gradient(600px 300px at 88% 10%,rgba(51,230,192,.2),transparent 65%),
    linear-gradient(140deg,#0D1A20,#080E14 70%);
  box-shadow:0 0 0 1px rgba(51,230,192,.12),0 24px 60px rgba(0,0,0,.5);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:36px 36px;
  mask-image:radial-gradient(circle at 80% 20%,rgba(0,0,0,.8),transparent 70%);
  -webkit-mask-image:radial-gradient(circle at 80% 20%,rgba(0,0,0,.8),transparent 70%);
}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;}
.cta-inner h2{font-size:clamp(1.5rem,2.8vw,2.15rem);line-height:1.3;}
.cta-inner p{color:var(--txt-2);margin-top:12px;max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.cta-actions .btn-ghost{background:rgba(255,255,255,.03);}
@media (max-width:767px){
  .cta-actions{width:100%;}
  .cta-actions .btn-glow,.cta-actions .btn-ghost{width:100%;}
}

/* ============ 页脚 ============ */
.site-foot{background:#04070B;border-top:1px solid var(--line-soft);padding:clamp(48px,7vw,80px) 0 0;margin-top:clamp(48px,7vw,84px);}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;}
.foot-brand p{color:var(--txt-3);font-size:.9rem;margin-top:16px;max-width:300px;line-height:1.75;}
.foot-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:20px;}
.foot-tags span{
  padding:5px 12px;border-radius:999px;font-size:.75rem;
  color:var(--txt-2);border:1px solid var(--line);background:rgba(255,255,255,.03);
}
.foot-col h4{font-size:.9375rem;font-weight:600;margin-bottom:18px;color:var(--txt);letter-spacing:.02em;}
.foot-col ul{display:flex;flex-direction:column;gap:12px;}
.foot-col ul a{color:var(--txt-3);font-size:.9rem;}
.foot-col ul a:hover{color:var(--main);}
.foot-contact{display:flex;flex-direction:column;gap:8px;font-size:.875rem;color:var(--txt-3);margin-bottom:20px;}
.foot-contact b{color:var(--txt-2);font-weight:600;font-family:var(--mono);font-size:.8125rem;}
.foot-form{display:flex;flex-direction:column;gap:10px;}
.foot-form label{font-size:.75rem;color:var(--txt-3);letter-spacing:.04em;}
.foot-form input{
  height:46px;padding:0 14px;border-radius:var(--r-sm);
  background:var(--panel-2);border:1px solid var(--line);color:var(--txt);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.foot-form input::placeholder{color:#4E6072;}
.foot-form input:focus{outline:none;border-color:var(--main);box-shadow:0 0 0 3px rgba(51,230,192,.18);}
.foot-form .btn-glow{width:100%;padding:11px 18px;font-size:.9rem;}
.foot-bottom{
  margin-top:44px;padding:22px 0 28px;
  border-top:1px dashed rgba(255,255,255,.1);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:.8125rem;color:var(--txt-3);
}
.to-top{color:var(--txt-2);}
.to-top:hover{color:var(--main);}
@media (max-width:991px){
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .foot-brand{grid-column:1/-1;}
}
@media (max-width:576px){
  .foot-grid{grid-template-columns:1fr;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
}

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

/* roulang page: category3 */
:root{
  --bg:#05080D;
  --bg-2:#0A1119;
  --panel:#0D1620;
  --brand:#33E6C0;
  --brand-deep:#16B394;
  --brand-soft:rgba(51,230,192,.12);
  --blue:#4C8DFF;
  --amber:#FFB454;
  --tx:#EAF2F7;
  --tx-2:#9FB2C2;
  --tx-3:#66798B;
  --line:rgba(255,255,255,.09);
  --line-2:rgba(255,255,255,.06);
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --shadow:0 18px 48px rgba(0,0,0,.45);
  --shadow-h:0 26px 64px rgba(0,0,0,.55);
  --glow:0 0 0 1px rgba(51,230,192,.35),0 10px 32px rgba(51,230,192,.22);
  --ease:cubic-bezier(.2,.8,.2,1);
  --bs-body-bg:#05080D;
  --bs-body-color:#EAF2F7;
  --bs-border-color:rgba(255,255,255,.09);
  --bs-primary:#33E6C0;
  --bs-link-color:#33E6C0;
  --bs-link-hover-color:#16B394;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--tx);
  font-family:"HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",Inter,system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(900px 520px at 12% -8%,rgba(51,230,192,.10),transparent 62%),
    radial-gradient(760px 460px at 92% 4%,rgba(76,141,255,.08),transparent 66%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color 200ms var(--ease)}
a:hover{color:var(--brand-deep)}
button,input,textarea,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:650;letter-spacing:-.01em}
p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{max-width:1240px;padding-left:32px;padding-right:32px;position:relative;z-index:1;margin:0 auto}
.mono{font-family:"JetBrains Mono",Consolas,"Courier New",monospace;font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-head{
  position:sticky;
  top:0;
  z-index:1030;
  padding:12px 0;
  background:linear-gradient(180deg,rgba(5,8,13,.92),rgba(5,8,13,.55));
  backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:padding 220ms var(--ease),background 220ms var(--ease),border-color 220ms var(--ease);
}
.site-head.is-scrolled{
  padding:6px 0;
  background:rgba(4,7,11,.96);
  border-bottom-color:var(--line-2);
  box-shadow:0 12px 30px rgba(0,0,0,.45);
}
.nav-shell{
  display:flex;
  align-items:center;
  gap:16px;
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid var(--line);
  border-radius:18px;
  padding:10px 14px;
  box-shadow:var(--shadow);
}
.brand{display:inline-flex;align-items:baseline;gap:2px;flex:none}
.brand-mark{
  font-family:"JetBrains Mono",Consolas,monospace;
  font-weight:700;
  font-size:1.32rem;
  color:var(--brand);
  letter-spacing:-.02em;
}
.brand-name{font-size:1.32rem;font-weight:700;color:var(--tx);letter-spacing:.02em}
.brand:hover .brand-name{color:var(--brand)}
.nav-drawer{flex:1;display:flex;align-items:center;gap:8px;min-width:0}
.nav-cards{display:flex;flex:1;align-items:center;gap:6px;justify-content:center;min-width:0}
.nav-item-card{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:9px 13px;
  border-radius:12px;
  border:1px solid transparent;
  background:rgba(255,255,255,.03);
  color:var(--tx-2);
  font-size:.875rem;
  font-weight:500;
  white-space:nowrap;
  position:relative;
  transition:all 200ms var(--ease);
}
.nav-item-card svg{
  width:17px;height:17px;flex:none;
  fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;
}
.nav-item-card::before{
  content:"";position:absolute;left:10px;right:10px;top:-1px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-deep));
  opacity:0;transition:opacity 200ms var(--ease);
}
.nav-item-card:hover{
  color:var(--tx);
  background:rgba(255,255,255,.07);
  border-color:var(--line);
  transform:translateY(-1px);
}
.nav-item-card:hover::before{opacity:1}
.nav-item-card.is-active{
  color:var(--brand);
  background:var(--brand-soft);
  border-color:rgba(51,230,192,.28);
  box-shadow:inset 3px 0 0 var(--brand);
}
.nav-right{display:flex;align-items:center;gap:10px;flex:none}
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;
  border-radius:12px;
  border:1px solid transparent;
  background:linear-gradient(135deg,#3BEFC9,#16B394);
  color:#04120F;font-weight:650;font-size:.94rem;
  box-shadow:0 10px 30px rgba(51,230,192,.22);
  cursor:pointer;
  transition:all 200ms var(--ease);
}
.btn-glow:hover{
  color:#04120F;
  transform:translateY(-2px);
  filter:brightness(1.06);
  box-shadow:var(--glow);
}
.btn-glow:active{transform:translateY(-1px)}
.btn-glow .arw{transition:transform 200ms var(--ease)}
.btn-glow:hover .arw{transform:translateX(4px)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;
  border-radius:12px;
  border:1px solid var(--line);
  background:transparent;
  color:var(--tx);
  font-size:.94rem;font-weight:500;
  transition:all 200ms var(--ease);
  cursor:pointer;
}
.btn-ghost:hover{
  color:var(--brand);
  border-color:rgba(51,230,192,.55);
  background:rgba(51,230,192,.08);
  transform:translateY(-2px);
}
.btn-ghost .arw{transition:transform 200ms var(--ease)}
.btn-ghost:hover .arw{transform:translateX(4px)}
.nav-drawer-cta{display:none}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  align-items:center;justify-content:center;
  cursor:pointer;
  flex:none;
}
.nav-toggle span{
  display:block;width:18px;height:2px;background:var(--tx);border-radius:2px;position:relative;
  transition:all 200ms var(--ease);
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--tx);border-radius:2px;
  transition:all 200ms var(--ease);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{top:0;transform:rotate(45deg);background:var(--brand)}
.nav-toggle[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg);background:var(--brand)}

/* ---------- hero ---------- */
.page-hero{
  position:relative;
  padding:44px 0 68px;
  overflow:hidden;
  border-bottom:1px solid var(--line-2);
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center 40%;
  opacity:.16;
  -webkit-mask-image:radial-gradient(120% 90% at 20% 0%,#000 20%,transparent 78%);
  mask-image:radial-gradient(120% 90% at 20% 0%,#000 20%,transparent 78%);
  z-index:0;
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:32px 32px;
  opacity:.35;
  -webkit-mask-image:linear-gradient(180deg,#000,transparent 82%);
  mask-image:linear-gradient(180deg,#000,transparent 82%);
  z-index:0;
}
.crumbs{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:.8rem;color:var(--tx-3);
  margin-bottom:22px;
}
.crumbs a{color:var(--tx-2)}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{opacity:.5}
.crumbs [aria-current]{color:var(--brand)}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) 372px;
  gap:44px;
  align-items:center;
}
.badge-pill{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;
  border-radius:999px;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:.78rem;
  letter-spacing:.06em;
  border:1px solid rgba(51,230,192,.26);
}
.badge-pill::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);
  box-shadow:0 0 0 4px rgba(51,230,192,.16);
}
h1{
  font-size:clamp(2rem,4.2vw,3.05rem);
  line-height:1.18;
  font-weight:700;
  letter-spacing:-.01em;
  margin:18px 0 0;
}
h1 .hl{color:var(--brand)}
.hero-lead{
  margin-top:16px;
  font-size:1.02rem;
  color:var(--tx-2);
  max-width:52ch;
}
.hero-stats{
  display:flex;gap:34px;flex-wrap:wrap;
  margin-top:30px;
  padding-top:24px;
  border-top:1px dashed var(--line);
}
.hero-stats .st b{
  display:block;
  font-family:"JetBrains Mono",Consolas,monospace;
  font-size:1.8rem;
  font-weight:600;
  color:var(--brand);
  line-height:1.2;
  letter-spacing:-.01em;
}
.hero-stats .st span{display:block;font-size:.78rem;color:var(--tx-3);margin-top:4px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.hero-media{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  background:#0B1219;
  box-shadow:var(--shadow);
}
.hero-media img{width:100%;aspect-ratio:16/11;object-fit:cover}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,8,13,0) 40%,rgba(5,8,13,.82));
}
.hero-float{
  position:absolute;left:14px;bottom:14px;right:14px;
  z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:11px 14px;
  border-radius:12px;
  background:linear-gradient(160deg,rgba(255,255,255,.1),rgba(255,255,255,.03));
  border:1px solid var(--line);
  backdrop-filter:blur(18px) saturate(120%);
  font-size:.8rem;
  color:var(--tx-2);
}
.hero-float b{color:var(--brand);font-family:"JetBrains Mono",Consolas,monospace;font-size:.9rem}

/* ---------- section basics ---------- */
.section{padding:clamp(56px,7vw,96px) 0;position:relative}
.section.tight{padding:clamp(48px,6vw,76px) 0}
.sec-head{max-width:720px;margin-bottom:40px}
.sec-label{
  font-family:"JetBrains Mono",Consolas,monospace;
  font-size:.74rem;
  letter-spacing:.16em;
  color:var(--brand);
  text-transform:uppercase;
  display:block;
  margin-bottom:12px;
}
h2{
  font-size:clamp(1.5rem,2.6vw,2.05rem);
  line-height:1.3;
  font-weight:650;
}
.sec-head p{margin-top:14px;color:var(--tx-2);font-size:.98rem}
.rule{height:1px;background:linear-gradient(90deg,rgba(51,230,192,.45),rgba(255,255,255,.06),transparent)}

/* ---------- flow steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step-card{
  position:relative;
  padding:26px 22px 24px;
  border-radius:var(--r-md);
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid var(--line);
  backdrop-filter:blur(18px) saturate(120%);
  transition:all 220ms var(--ease);
}
.step-card::after{
  content:"";
  position:absolute;top:44px;right:-20px;width:20px;height:1px;
  background:linear-gradient(90deg,rgba(51,230,192,.55),rgba(51,230,192,.1));
}
.step-card:last-child::after{display:none}
.step-card:hover{transform:translateY(-4px);border-color:rgba(51,230,192,.34);box-shadow:var(--shadow)}
.step-no{
  font-family:"JetBrains Mono",Consolas,monospace;
  font-size:.82rem;letter-spacing:.14em;color:var(--brand);
  display:inline-block;
  padding:3px 9px;
  border-radius:999px;
  background:var(--brand-soft);
}
.step-card h3{font-size:1.08rem;margin:16px 0 8px}
.step-card p{font-size:.9rem;color:var(--tx-2);line-height:1.72}

/* ---------- split blocks ---------- */
.split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:clamp(32px,4vw,64px);
  align-items:center;
}
.split + .split{margin-top:clamp(48px,6vw,84px)}
.split.rev .split-media{order:2}
.split-media{
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  background:#0B1219;
  box-shadow:var(--shadow);
  position:relative;
}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform 420ms var(--ease)}
.split-media:hover img{transform:scale(1.03)}
.split-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(5,8,13,0) 45%,rgba(5,8,13,.55));
  pointer-events:none;
}
.split-body h3{font-size:clamp(1.2rem,2vw,1.5rem);line-height:1.35;margin-bottom:14px}
.split-body > p{color:var(--tx-2);font-size:.96rem;margin-bottom:20px}
.points{display:grid;gap:12px}
.points li{
  position:relative;
  padding-left:26px;
  font-size:.93rem;
  color:var(--tx-2);
  line-height:1.72;
}
.points li::before{
  content:"";position:absolute;left:0;top:.62em;
  width:9px;height:9px;border-radius:3px;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  box-shadow:0 0 0 3px rgba(51,230,192,.12);
}
.points li b{color:var(--tx);font-weight:600}
.split-link{
  display:inline-flex;align-items:center;gap:8px;
  margin-top:24px;
  font-size:.92rem;color:var(--brand);
  border-bottom:1px solid transparent;
  transition:all 200ms var(--ease);
}
.split-link:hover{border-bottom-color:rgba(51,230,192,.6)}
.split-link .arw{transition:transform 200ms var(--ease)}
.split-link:hover .arw{transform:translateX(4px)}

/* ---------- param table ---------- */
.param-wrap{
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(255,255,255,.05),rgba(255,255,255,.015));
  overflow:hidden;
  box-shadow:var(--shadow);
}
.param-table{width:100%;border-collapse:collapse;margin:0}
.param-table caption{
  caption-side:top;
  text-align:left;
  padding:20px 24px 14px;
  color:var(--tx-3);
  font-size:.8rem;
  letter-spacing:.08em;
}
.param-table tr{border-top:1px solid var(--line-2)}
.param-table tr:first-child{border-top:0}
.param-table th,.param-table td{
  padding:16px 24px;
  text-align:left;
  font-size:.92rem;
  vertical-align:top;
}
.param-table th{
  width:34%;
  color:var(--tx-3);
  font-weight:500;
}
.param-table td{color:var(--tx)}
.param-table td b{
  font-family:"JetBrains Mono",Consolas,monospace;
  color:var(--brand);
  font-weight:600;
}
.param-table tbody tr:hover{background:rgba(51,230,192,.05)}

/* ---------- scene list ---------- */
.scene-list{display:grid;gap:14px}
.scene-row{
  display:grid;
  grid-template-columns:64px minmax(0,1fr) auto;
  gap:20px;
  align-items:center;
  padding:20px 22px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:rgba(255,255,255,.025);
  transition:all 220ms var(--ease);
}
.scene-row:hover{
  border-color:rgba(51,230,192,.32);
  background:rgba(51,230,192,.05);
  transform:translateX(4px);
}
.scene-icon{
  width:48px;height:48px;border-radius:12px;
  display:grid;place-items:center;
  background:rgba(76,141,255,.12);
  border:1px solid rgba(76,141,255,.22);
}
.scene-icon svg{width:22px;height:22px;fill:none;stroke:var(--blue);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.scene-row h3{font-size:1rem;margin-bottom:4px}
.scene-row p{font-size:.875rem;color:var(--tx-2)}
.scene-tag{
  font-family:"JetBrains Mono",Consolas,monospace;
  font-size:.74rem;
  letter-spacing:.1em;
  color:var(--amber);
  border:1px solid rgba(255,180,84,.32);
  background:rgba(255,180,84,.1);
  border-radius:999px;
  padding:5px 12px;
  white-space:nowrap;
}

/* ---------- faq ---------- */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.faq-item{
  border-radius:14px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.025);
  transition:all 220ms var(--ease);
  overflow:hidden;
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:18px 52px 18px 22px;
  font-size:1rem;
  font-weight:600;
  color:var(--tx);
  position:relative;
  transition:background 200ms var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";
  position:absolute;right:20px;top:50%;
  transform:translateY(-50%);
  font-family:"JetBrains Mono",Consolas,monospace;
  font-size:1.2rem;
  color:var(--brand);
  transition:transform 220ms var(--ease);
}
.faq-item[open]{
  background:rgba(51,230,192,.045);
  border-color:rgba(51,230,192,.28);
  box-shadow:inset 3px 0 0 var(--brand);
}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq-item summary:hover{color:var(--brand)}
.faq-answer{
  padding:0 22px 20px;
  font-size:.92rem;
  color:var(--tx-2);
  line-height:1.8;
}

/* ---------- cta ---------- */
.cta-band{padding:0 0 clamp(56px,7vw,96px)}
.cta-card{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-lg);
  border:1px solid rgba(51,230,192,.28);
  background:
    radial-gradient(700px 300px at 15% 0%,rgba(51,230,192,.20),transparent 65%),
    linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  backdrop-filter:blur(18px);
  padding:clamp(32px,4.6vw,54px);
  box-shadow:var(--glow);
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:32px;
  align-items:center;
}
.cta-card h2{max-width:20ch}
.cta-card p{margin-top:14px;color:var(--tx-2);max-width:56ch;font-size:.96rem}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-foot{
  background:#04070B;
  border-top:1px solid var(--line-2);
  padding:clamp(48px,6vw,72px) 0 26px;
  position:relative;
  z-index:1;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px dashed var(--line);
}
.foot-brand p{
  margin-top:16px;
  font-size:.9rem;
  color:var(--tx-2);
  max-width:34ch;
}
.foot-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.foot-tags span{
  font-size:.74rem;
  color:var(--tx-2);
  padding:5px 11px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
}
.foot-col h4{
  font-size:.86rem;
  letter-spacing:.1em;
  color:var(--tx-3);
  margin-bottom:16px;
  font-weight:600;
}
.foot-col ul{display:grid;gap:10px}
.foot-col ul a{
  color:var(--tx-2);
  font-size:.9rem;
  display:inline-block;
  transition:all 200ms var(--ease);
}
.foot-col ul a:hover{color:var(--brand);transform:translateX(3px)}
.foot-contact{display:grid;gap:8px;font-size:.875rem;color:var(--tx-2)}
.foot-contact b{color:var(--tx);font-weight:600}
.foot-form{margin-top:18px;display:grid;gap:10px}
.foot-form label{font-size:.72rem;letter-spacing:.1em;color:var(--tx-3)}
.foot-form input{
  height:46px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#0B141D;
  color:var(--tx);
  padding:0 14px;
  font-size:.9rem;
  transition:all 200ms var(--ease);
  width:100%;
}
.foot-form input::placeholder{color:var(--tx-3)}
.foot-form input:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(51,230,192,.18);
}
.foot-form .btn-glow{width:100%;padding:12px 18px;font-size:.9rem}
.foot-bottom{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;
  padding-top:22px;
  font-size:.8rem;
  color:var(--tx-3);
}
.foot-bottom a{color:var(--tx-3)}
.foot-bottom a:hover{color:var(--brand)}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .hero-grid{grid-template-columns:minmax(0,1fr) 320px;gap:32px}
  .nav-item-card{padding:8px 10px;font-size:.82rem}
}
@media (max-width:991px){
  .container{padding-left:24px;padding-right:24px}
  .nav-toggle{display:inline-flex}
  .nav-cta{display:none}
  .nav-drawer{
    position:fixed;
    inset:0;
    padding:92px 20px 28px;
    flex-direction:column;
    align-items:stretch;
    gap:18px;
    background:rgba(5,8,13,.98);
    backdrop-filter:blur(20px);
    opacity:0;visibility:hidden;pointer-events:none;
    transform:translateY(-10px);
    transition:opacity 220ms var(--ease),transform 220ms var(--ease),visibility 220ms var(--ease);
    overflow-y:auto;
    z-index:1020;
  }
  .nav-drawer.is-open{opacity:1;visibility:visible;pointer-events:auto;transform:none}
  .nav-cards{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:12px;
    flex:none;
    justify-content:stretch;
  }
  .nav-item-card{
    padding:16px 14px;
    font-size:.92rem;
    justify-content:flex-start;
    background:rgba(255,255,255,.05);
    border-color:var(--line-2);
  }
  .nav-item-card::before{display:none}
  .nav-drawer-cta{display:inline-flex;margin-top:auto;width:100%}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-media{max-width:560px}
  .steps{grid-template-columns:1fr 1fr}
  .step-card::after{display:none}
  .split{grid-template-columns:1fr}
  .split.rev .split-media{order:0}
  .faq-grid{grid-template-columns:1fr}
  .cta-card{grid-template-columns:1fr;gap:24px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .page-hero{padding:28px 0 48px}
  .hero-stats{gap:24px}
  .hero-stats .st b{font-size:1.5rem}
  .hero-actions .btn-glow,.hero-actions .btn-ghost{width:100%}
  .steps{grid-template-columns:1fr}
  .scene-row{grid-template-columns:48px minmax(0,1fr);gap:14px}
  .scene-tag{grid-column:2;justify-self:start}
  .param-table th,.param-table td{padding:14px 16px;font-size:.86rem}
  .param-table th{width:40%}
  .foot-grid{grid-template-columns:1fr}
}
@media (max-width:576px){
  .container{padding-left:18px;padding-right:18px}
  body{font-size:15.5px}
  .nav-shell{padding:8px 10px;border-radius:16px}
  .brand-mark,.brand-name{font-size:1.16rem}
  h1{font-size:1.72rem}
  .hero-lead{font-size:.94rem}
  .cta-actions .btn-glow,.cta-actions .btn-ghost{width:100%}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: category4 */
:root{
  --bg:#05080D;
  --bg-2:#0A1119;
  --panel:#0D1620;
  --main:#33E6C0;
  --main-deep:#16B394;
  --main-mist:rgba(51,230,192,0.12);
  --signal:#4C8DFF;
  --amber:#FFB454;
  --txt:#EAF2F7;
  --txt-2:#9FB2C2;
  --txt-3:#66798B;
  --line:rgba(255,255,255,0.09);
  --line-soft:rgba(255,255,255,0.06);
  --radius-lg:20px;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 18px 48px rgba(0,0,0,0.45);
  --shadow-hover:0 26px 64px rgba(0,0,0,0.55);
  --glow:0 0 0 1px rgba(51,230,192,0.35),0 10px 32px rgba(51,230,192,0.22);
  --ease:200ms cubic-bezier(.2,.8,.2,1);
  --bs-body-bg:#05080D;
  --bs-body-color:#EAF2F7;
  --bs-border-color:rgba(255,255,255,0.09);
  --bs-primary:#33E6C0;
  --bs-link-color:#33E6C0;
  --bs-link-hover-color:#16B394;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--txt);
  font-family:"HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",Inter,sans-serif;
  font-size:1rem;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease);}
a:hover{color:var(--main);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--txt);letter-spacing:-0.01em;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--main);outline-offset:2px;border-radius:6px;}

.container{max-width:1240px;padding-left:32px;padding-right:32px;margin:0 auto;width:100%;}

/* ============ 通用元素 ============ */
.mono{
  font-family:"JetBrains Mono",Consolas,"Courier New",monospace;
  letter-spacing:0.12em;
  text-transform:uppercase;
  font-size:0.75rem;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--main);font-family:"JetBrains Mono",Consolas,monospace;
  font-size:0.75rem;letter-spacing:0.16em;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--main);display:inline-block;}
.section{padding:clamp(56px,8vw,104px) 0;}
.section-head{max-width:720px;margin-bottom:48px;}
.section-head h2{font-size:clamp(1.5rem,2.6vw,2.1rem);font-weight:650;line-height:1.28;margin-bottom:14px;}
.section-head p{color:var(--txt-2);margin:0;font-size:1rem;}

.btn-glow,.btn-ghost,.btn-text{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  border-radius:var(--radius-sm);
  padding:14px 26px;
  font-size:0.94rem;font-weight:600;
  cursor:pointer;border:1px solid transparent;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
}
.btn-glow{
  background:linear-gradient(135deg,var(--main) 0%,#5BF2D4 55%,var(--main-deep) 100%);
  color:#04120F;
  box-shadow:0 10px 28px rgba(51,230,192,0.22);
}
.btn-glow:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 16px 38px rgba(51,230,192,0.34);color:#04120F;}
.btn-glow:active{transform:translateY(-1px);}
.btn-glow .arw{transition:transform var(--ease);}
.btn-glow:hover .arw{transform:translateX(4px);}
.btn-ghost{
  background:transparent;border:1px solid var(--line);color:var(--txt);
}
.btn-ghost:hover{border-color:var(--main);background:rgba(51,230,192,0.08);color:var(--main);transform:translateY(-2px);}
.btn-text{
  padding:0;background:none;border:none;color:var(--main);font-weight:600;
  border-bottom:1px solid transparent;border-radius:0;
}
.btn-text:hover{color:var(--main);border-bottom-color:rgba(51,230,192,0.65);}
.btn-text .arw{transition:transform var(--ease);}
.btn-text:hover .arw{transform:translateX(4px);}

.tag{
  display:inline-flex;align-items:center;
  padding:5px 14px;border-radius:999px;
  background:var(--main-mist);color:var(--main);
  font-size:0.8rem;font-weight:600;letter-spacing:0.02em;
}
.tag-amber{background:rgba(255,180,84,0.14);color:var(--amber);}
.tag-line{background:transparent;border:1px solid var(--line);color:var(--txt-2);}

/* ============ 头部导航 ============ */
.site-head{
  position:sticky;top:0;z-index:60;
  padding:14px 0;
  background:rgba(5,8,13,0.72);
  backdrop-filter:blur(16px) saturate(130%);
  border-bottom:1px solid transparent;
  transition:background var(--ease),border-color var(--ease),padding var(--ease);
}
.site-head.is-scrolled{
  padding:8px 0;
  background:rgba(5,8,13,0.94);
  border-bottom-color:var(--line-soft);
}
.head-inner{display:flex;align-items:center;gap:18px;}

.brand{display:inline-flex;align-items:baseline;gap:2px;flex-shrink:0;}
.brand-mark{
  font-family:"JetBrains Mono",Consolas,monospace;
  font-size:1.28rem;font-weight:700;letter-spacing:-0.02em;
  color:var(--main);
}
.brand-name{font-size:1.22rem;font-weight:700;color:var(--txt);letter-spacing:0.04em;}
.brand:hover .brand-name{color:var(--main);}

.nav-cards{
  display:flex;align-items:center;gap:6px;
  flex:1;
  padding:6px;
  border-radius:999px;
  border:1px solid var(--line-soft);
  background:rgba(255,255,255,0.025);
  margin-left:8px;
}
.nav-item-card{
  position:relative;
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 14px;border-radius:999px;
  color:var(--txt-2);font-size:0.86rem;font-weight:500;
  white-space:nowrap;
  transition:background var(--ease),color var(--ease);
}
.nav-item-card svg{
  width:16px;height:16px;flex-shrink:0;
  fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;
}
.nav-item-card::before{
  content:"";position:absolute;left:14px;right:14px;top:0;height:2px;
  background:var(--main);border-radius:2px;opacity:0;transform:scaleX(0.4);
  transition:opacity var(--ease),transform var(--ease);
}
.nav-item-card:hover{background:rgba(255,255,255,0.06);color:var(--txt);}
.nav-item-card:hover::before{opacity:0.8;transform:scaleX(1);}
.nav-item-card.is-active{
  background:rgba(51,230,192,0.12);color:var(--main);
  box-shadow:inset 3px 0 0 var(--main);
}
.nav-item-card.is-active::before{opacity:1;transform:scaleX(1);}

.head-cta{flex-shrink:0;padding:11px 20px;font-size:0.86rem;}

.nav-toggle{
  display:none;
  width:44px;height:44px;flex-shrink:0;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:rgba(255,255,255,0.04);
  align-items:center;justify-content:center;
  cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--txt);position:relative;border-radius:2px;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--txt);border-radius:2px;
  transition:transform var(--ease),opacity var(--ease);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg);}

.mobile-drawer{
  display:none;
  position:fixed;inset:68px 0 0 0;z-index:55;
  background:rgba(5,8,13,0.97);
  backdrop-filter:blur(18px);
  padding:24px 20px 110px;
  overflow-y:auto;
}
.mobile-drawer.is-open{display:block;}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.drawer-grid .nav-item-card{
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:16px 14px;
  background:rgba(255,255,255,0.03);
  font-size:0.92rem;
}
.drawer-grid .nav-item-card.is-active{
  background:rgba(51,230,192,0.12);
  border-color:rgba(51,230,192,0.4);
}
.drawer-cta{position:fixed;left:20px;right:20px;bottom:20px;}

/* ============ Hero ============ */
.hero{
  position:relative;
  padding:clamp(40px,6vw,72px) 0 clamp(48px,7vw,84px);
  overflow:hidden;
  border-bottom:1px solid var(--line-soft);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:0.16;
  -webkit-mask-image:radial-gradient(circle at 30% 30%,#000 0%,transparent 72%);
  mask-image:radial-gradient(circle at 30% 30%,#000 0%,transparent 72%);
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,0.035) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,0.035) 1px,transparent 1px);
  background-size:32px 32px;
  -webkit-mask-image:radial-gradient(circle at 60% 40%,#000,transparent 78%);
  mask-image:radial-gradient(circle at 60% 40%,#000,transparent 78%);
  pointer-events:none;
}
.hero .container{position:relative;z-index:2;}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:0.8rem;color:var(--txt-3);margin-bottom:22px;
}
.crumb a{color:var(--txt-2);}
.crumb a:hover{color:var(--main);}
.crumb .sep{color:var(--txt-3);opacity:0.6;}

.hero-grid{display:grid;grid-template-columns:1.32fr 1fr;gap:48px;align-items:center;}
.hero-copy h1{
  font-size:clamp(2rem,4.2vw,3.25rem);
  line-height:1.18;font-weight:700;margin:18px 0 18px;
}
.hero-copy h1 em{font-style:normal;color:var(--main);}
.hero-lead{color:var(--txt-2);font-size:1.04rem;max-width:560px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-metrics{display:flex;flex-wrap:wrap;gap:38px;}
.hero-metrics .num{
  font-family:"JetBrains Mono",Consolas,monospace;
  font-size:1.6rem;font-weight:700;color:var(--main);line-height:1.2;
}
.hero-metrics .lbl{font-size:0.78rem;color:var(--txt-3);letter-spacing:0.04em;}

.hero-figure{position:relative;}
.hero-figure .frame{
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(255,255,255,0.07),rgba(255,255,255,0.02));
  box-shadow:var(--shadow);
  padding:10px;
}
.hero-figure .frame img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:14px;background:#0B1219;
}
.float-card{
  position:absolute;
  border-radius:var(--radius);
  border:1px solid rgba(51,230,192,0.28);
  background:linear-gradient(160deg,rgba(13,22,32,0.96),rgba(10,17,25,0.9));
  backdrop-filter:blur(14px);
  box-shadow:var(--glow);
  padding:14px 16px;
  max-width:60%;
}
.float-card.fc-top{top:-18px;right:-6px;}
.float-card.fc-bottom{bottom:-22px;left:-10px;border-color:var(--line);box-shadow:var(--shadow);}
.float-card .fc-num{
  font-family:"JetBrains Mono",Consolas,monospace;
  font-size:1.32rem;font-weight:700;color:var(--main);line-height:1.2;
}
.float-card .fc-lbl{font-size:0.75rem;color:var(--txt-3);}

/* ============ 统计条 ============ */
.stat-band{
  border-top:1px solid var(--line-soft);
  border-bottom:1px solid var(--line-soft);
  background:linear-gradient(180deg,rgba(13,22,32,0.7),rgba(5,8,13,0));
}
.stat-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:0;
}
.stat-cell{
  padding:36px 28px;
  border-right:1px dashed var(--line-soft);
  position:relative;
}
.stat-cell:last-child{border-right:none;}
.stat-cell .idx{
  font-family:"JetBrains Mono",Consolas,monospace;
  font-size:0.7rem;color:var(--txt-3);letter-spacing:0.16em;
  display:block;margin-bottom:10px;
}
.stat-cell .val{
  font-family:"JetBrains Mono",Consolas,monospace;
  font-size:clamp(1.8rem,3vw,2.5rem);
  font-weight:700;color:var(--main);line-height:1.1;
}
.stat-cell .val small{font-size:0.5em;color:var(--txt-2);margin-left:4px;}
.stat-cell .cap{font-size:0.86rem;color:var(--txt-2);margin-top:8px;}

/* ============ 案例瀑布 ============ */
.case-wall{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
  align-items:start;
}
.case-col{display:grid;gap:24px;}
.case-card{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--panel);
  box-shadow:var(--shadow);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(51,230,192,0.3);}
.case-media{position:relative;overflow:hidden;background:#0B1219;}
.case-media img{width:100%;height:100%;object-fit:cover;transition:transform 600ms cubic-bezier(.2,.8,.2,1);}
.case-card:hover .case-media img{transform:scale(1.04);}
.case-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,8,13,0.15) 0%,rgba(5,8,13,0.82) 78%,rgba(5,8,13,0.96) 100%);
}
.case-media .media-badge{
  position:absolute;top:16px;left:16px;z-index:2;
}
.case-body{padding:24px 26px 26px;position:relative;}
.case-card.is-tall .case-media{aspect-ratio:16/11;}
.case-card.is-short .case-media{aspect-ratio:16/8;}
.case-body h3{font-size:1.2rem;font-weight:650;margin-bottom:10px;line-height:1.42;}
.case-body p{color:var(--txt-2);font-size:0.93rem;margin-bottom:18px;}
.case-facts{
  display:flex;flex-wrap:wrap;gap:22px;
  padding-top:16px;border-top:1px dashed var(--line-soft);
}
.case-facts .f-num{
  font-family:"JetBrains Mono",Consolas,monospace;
  font-size:1.15rem;font-weight:700;color:var(--main);
}
.case-facts .f-lbl{font-size:0.74rem;color:var(--txt-3);}
.ticket-notch{
  position:absolute;right:-11px;top:52%;
  width:22px;height:22px;border-radius:50%;
  background:var(--bg);border:1px solid var(--line);
}
.ticket-notch.left{left:-11px;right:auto;}
.case-link{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--main);font-size:0.86rem;font-weight:600;
}
.case-link .arw{transition:transform var(--ease);}
.case-link:hover .arw{transform:translateX(4px);}

/* ============ 客户评价 ============ */
.quote-section{
  border-top:1px solid var(--line-soft);
  border-bottom:1px solid var(--line-soft);
  background:linear-gradient(180deg,rgba(10,17,25,0.9),rgba(5,8,13,0.4));
}
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.quote-card{
  position:relative;
  padding:32px 28px 28px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(255,255,255,0.055),rgba(255,255,255,0.015));
  backdrop-filter:blur(16px) saturate(120%);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.quote-card:hover{transform:translateY(-4px);border-color:rgba(51,230,192,0.3);box-shadow:var(--glow);}
.quote-card .qmark{
  font-family:Georgia,serif;font-size:3.2rem;line-height:1;
  color:var(--main);opacity:0.5;display:block;margin-bottom:6px;
}
.quote-card blockquote{margin:0 0 20px;color:var(--txt);font-size:0.97rem;line-height:1.78;}
.quote-who{display:flex;align-items:center;gap:12px;padding-top:16px;border-top:1px dashed var(--line-soft);}
.quote-who .avatar{
  width:38px;height:38px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(135deg,rgba(51,230,192,0.35),rgba(76,141,255,0.25));
  display:flex;align-items:center;justify-content:center;
  font-family:"JetBrains Mono",Consolas,monospace;font-size:0.78rem;color:var(--main);font-weight:700;
}
.quote-who .who-name{font-size:0.88rem;font-weight:600;}
.quote-who .who-role{font-size:0.75rem;color:var(--txt-3);}

/* ============ 落地路径 ============ */
.path-timeline{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  position:relative;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(13,22,32,0.92),rgba(10,17,25,0.7));
  overflow:hidden;
}
.path-step{
  padding:32px 26px 30px;
  border-right:1px solid var(--line-soft);
  position:relative;
}
.path-step:last-child{border-right:none;}
.path-step::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--main),transparent);
  opacity:0.55;
}
.path-step .step-no{
  font-family:"JetBrains Mono",Consolas,monospace;
  font-size:0.72rem;letter-spacing:0.18em;color:var(--main);
  display:block;margin-bottom:14px;
}
.path-step h3{font-size:1.02rem;font-weight:650;margin-bottom:8px;}
.path-step p{font-size:0.88rem;color:var(--txt-2);margin:0;}
.path-step .step-time{
  margin-top:16px;display:inline-flex;align-items:center;gap:6px;
  font-family:"JetBrains Mono",Consolas,monospace;font-size:0.72rem;color:var(--txt-3);
  padding:4px 10px;border-radius:999px;border:1px solid var(--line);
}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px;max-width:920px;}
.faq-item{
  border-radius:14px;
  border:1px solid var(--line);
  background:rgba(255,255,255,0.025);
  overflow:hidden;
  transition:border-color var(--ease),background var(--ease);
}
.faq-item.is-open{border-color:rgba(51,230,192,0.34);background:rgba(51,230,192,0.05);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;background:none;border:none;text-align:left;
  color:var(--txt);font-size:1.02rem;font-weight:600;cursor:pointer;
  border-left:3px solid transparent;transition:border-color var(--ease),color var(--ease);
}
.faq-item.is-open .faq-q{border-left-color:var(--main);color:var(--main);}
.faq-q .sign{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  font-size:1rem;color:var(--txt-2);transition:transform var(--ease),color var(--ease),border-color var(--ease);
  line-height:1;
}
.faq-item.is-open .faq-q .sign{transform:rotate(45deg);color:var(--main);border-color:rgba(51,230,192,0.5);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 320ms cubic-bezier(.2,.8,.2,1);}
.faq-a-inner{padding:0 22px 22px 25px;color:var(--txt-2);font-size:0.94rem;line-height:1.8;}

/* ============ CTA ============ */
.cta-band{padding:0 0 clamp(56px,8vw,96px);}
.cta-card{
  position:relative;overflow:hidden;
  border-radius:24px;
  border:1px solid rgba(51,230,192,0.26);
  background:
    radial-gradient(900px 320px at 12% 0%,rgba(51,230,192,0.16),transparent 62%),
    linear-gradient(160deg,rgba(13,22,32,0.98),rgba(6,12,18,0.98));
  padding:clamp(32px,5vw,56px);
  display:grid;grid-template-columns:1.35fr 1fr;gap:40px;align-items:center;
  box-shadow:var(--shadow);
}
.cta-card h2{font-size:clamp(1.5rem,2.6vw,2.1rem);font-weight:700;margin-bottom:14px;line-height:1.3;}
.cta-card p{color:var(--txt-2);margin:0;max-width:520px;}
.cta-form{display:grid;gap:12px;}
.cta-form label{font-size:0.72rem;color:var(--txt-3);letter-spacing:0.06em;margin-bottom:2px;display:block;}
.cta-form input{
  width:100%;height:48px;border-radius:var(--radius-sm);
  background:#0B141D;border:1px solid var(--line);color:var(--txt);
  padding:0 16px;font-size:0.92rem;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.cta-form input::placeholder{color:#4C5C6B;}
.cta-form input:focus{
  outline:none;border-color:var(--main);
  box-shadow:0 0 0 3px rgba(51,230,192,0.18);
}
.cta-form .btn-glow{width:100%;}

/* ============ 页脚 ============ */
.site-foot{
  background:#04070B;
  border-top:1px solid var(--line-soft);
  padding:clamp(48px,6vw,72px) 0 0;
  color:var(--txt-2);
  font-size:0.9rem;
}
.foot-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;
  gap:40px;padding-bottom:44px;
}
.foot-brand .brand{margin-bottom:16px;}
.foot-brand p{color:var(--txt-3);font-size:0.88rem;max-width:300px;margin-bottom:18px;}
.foot-tags{display:flex;flex-wrap:wrap;gap:8px;}
.foot-tags span{
  font-size:0.74rem;color:var(--txt-2);
  padding:4px 12px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,0.02);
}
.foot-col h4{font-size:0.86rem;font-weight:600;color:var(--txt);margin-bottom:18px;letter-spacing:0.04em;}
.foot-col ul{display:grid;gap:11px;}
.foot-col ul a{font-size:0.87rem;color:var(--txt-3);}
.foot-col ul a:hover{color:var(--main);}
.foot-contact{display:grid;gap:8px;font-size:0.84rem;color:var(--txt-3);margin-bottom:20px;}
.foot-contact b{color:var(--txt-2);font-weight:600;}
.foot-form{display:grid;gap:10px;}
.foot-form label{font-size:0.74rem;color:var(--txt-3);}
.foot-form input{
  height:44px;border-radius:var(--radius-sm);
  background:#0B141D;border:1px solid var(--line);color:var(--txt);
  padding:0 14px;font-size:0.86rem;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.foot-form input:focus{outline:none;border-color:var(--main);box-shadow:0 0 0 3px rgba(51,230,192,0.16);}
.foot-form .btn-glow{padding:11px 18px;font-size:0.85rem;}
.foot-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  padding:20px 0 26px;
  border-top:1px dashed var(--line-soft);
  font-size:0.8rem;color:var(--txt-3);
}
.foot-bottom .to-top{color:var(--txt-2);}
.foot-bottom .to-top:hover{color:var(--main);}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .hero-grid{grid-template-columns:1fr;gap:44px;}
  .hero-figure{max-width:620px;}
  .nav-item-card{padding:8px 11px;font-size:0.82rem;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .stat-cell:nth-child(2){border-right:none;}
  .stat-cell:nth-child(1),.stat-cell:nth-child(2){border-bottom:1px dashed var(--line-soft);}
  .quote-grid{grid-template-columns:1fr;gap:18px;}
  .path-timeline{grid-template-columns:repeat(2,1fr);}
  .path-step:nth-child(2){border-right:none;}
  .path-step:nth-child(1),.path-step:nth-child(2){border-bottom:1px solid var(--line-soft);}
  .cta-card{grid-template-columns:1fr;gap:28px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:34px;}
}

@media (max-width:991px){
  .container{padding-left:24px;padding-right:24px;}
  .nav-cards{display:none;}
  .head-cta{display:none;}
  .nav-toggle{display:flex;margin-left:auto;}
  .head-inner{justify-content:space-between;}
  .case-wall{grid-template-columns:1fr;}
  .case-col{gap:20px;}
  .case-card.is-tall .case-media,.case-card.is-short .case-media{aspect-ratio:16/9;}
  .section-head{margin-bottom:36px;}
  .hero-metrics{gap:28px;}
}

@media (max-width:767px){
  .container{padding-left:18px;padding-right:18px;}
  .hero{padding-top:32px;padding-bottom:48px;}
  .hero-copy h1{font-size:clamp(1.72rem,7vw,2.3rem);}
  .hero-lead{font-size:0.96rem;}
  .hero-actions .btn-glow,.hero-actions .btn-ghost{width:100%;}
  .hero-metrics{display:grid;grid-template-columns:1fr 1fr;gap:20px 16px;}
  .hero-figure .frame{padding:8px;}
  .float-card{max-width:76%;padding:11px 13px;}
  .float-card .fc-num{font-size:1.1rem;}
  .stat-grid{grid-template-columns:1fr;}
  .stat-cell{border-right:none;border-bottom:1px dashed var(--line-soft);padding:24px 20px;}
  .stat-cell:last-child{border-bottom:none;}
  .path-timeline{grid-template-columns:1fr;}
  .path-step{border-right:none;border-bottom:1px solid var(--line-soft);padding:26px 22px;}
  .path-step:last-child{border-bottom:none;}
  .case-body{padding:20px 20px 22px;}
  .case-facts{gap:16px;}
  .quote-card{padding:26px 22px 24px;}
  .faq-q{font-size:0.96rem;padding:17px 18px;}
  .faq-a-inner{padding:0 18px 18px 21px;}
  .foot-grid{grid-template-columns:1fr;gap:30px;}
  .foot-bottom{justify-content:flex-start;flex-direction:column;align-items:flex-start;}
  .cta-card{padding:28px 22px;border-radius:20px;}
}

@media (max-width:520px){
  .nav-item-card{padding:8px 10px;font-size:0.8rem;}
  .drawer-grid{grid-template-columns:1fr;}
  .hero-metrics{grid-template-columns:1fr;}
  .case-facts{display:grid;grid-template-columns:1fr 1fr;gap:14px 12px;}
  .ticket-notch{display:none;}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:0.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:0.001ms !important;
    scroll-behavior:auto !important;
  }
}

/* roulang page: category5 */
:root{
  --bg:#05080D;--bg2:#0A1119;--panel:#0D1620;
  --pri:#33E6C0;--pri-deep:#16B394;--pri-mist:rgba(51,230,192,.12);
  --blue:#4C8DFF;--amber:#FFB454;
  --txt:#EAF2F7;--txt2:#9FB2C2;--txt3:#66798B;
  --line:rgba(255,255,255,.09);--line2:rgba(255,255,255,.06);
  --r-lg:20px;--r-md:16px;--r-sm:12px;
  --sh:0 18px 48px rgba(0,0,0,.45);
  --sh-hover:0 26px 64px rgba(0,0,0,.55);
  --glow:0 0 0 1px rgba(51,230,192,.35),0 10px 32px rgba(51,230,192,.22);
  --ease:200ms cubic-bezier(.2,.8,.2,1);
  --bs-body-bg:#05080D;--bs-body-color:#EAF2F7;--bs-border-color:rgba(255,255,255,.09);
  --bs-primary:#33E6C0;--bs-link-color:#33E6C0;--bs-link-hover-color:#16B394;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--txt);
  font-family:"HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none;transition:var(--ease)}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--pri);outline-offset:2px}
::selection{background:rgba(51,230,192,.28);color:#04120F}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}
.mono{font-family:"JetBrains Mono",Consolas,"Courier New",monospace;font-variant-numeric:tabular-nums}
.section{padding:clamp(56px,8vw,104px) 0}
.section-tight{padding:clamp(40px,6vw,72px) 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:42px;flex-wrap:wrap}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:"JetBrains Mono",Consolas,monospace;
  font-size:.75rem;letter-spacing:.16em;color:var(--pri);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--pri),transparent)}
.section-head h2{font-size:clamp(1.5rem,2.6vw,2.1rem);margin-top:12px}
.section-head p{color:var(--txt2);font-size:.9375rem;max-width:520px;margin-top:12px}
.section-head .head-right{color:var(--txt3);font-size:.875rem}

/* ============ 顶部导航 ============ */
.site-head{
  position:sticky;top:0;z-index:60;
  background:rgba(5,8,13,.74);
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
  border-bottom:1px solid var(--line2);
  padding:14px 0;
}
.head-row{display:flex;align-items:center;gap:20px}
.brand{display:inline-flex;align-items:baseline;gap:6px;font-size:1.3rem;font-weight:700;letter-spacing:.01em}
.brand-mark{
  font-family:"JetBrains Mono",Consolas,monospace;font-weight:700;
  color:var(--pri);letter-spacing:.02em;
  text-shadow:0 0 18px rgba(51,230,192,.45);
}
.brand-name{color:var(--txt)}
.brand:hover .brand-name{color:var(--pri)}
.nav-toggle{
  margin-left:auto;display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);cursor:pointer;transition:var(--ease);
}
.nav-toggle:hover{border-color:rgba(51,230,192,.4);background:var(--pri-mist)}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--txt);border-radius:2px;position:relative;transition:var(--ease)}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--txt);border-radius:2px;transition:var(--ease)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-cards{display:flex;align-items:center;gap:8px;margin-left:auto}
.nav-item-card{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 14px;border-radius:12px;border:1px solid transparent;
  color:var(--txt2);font-size:.875rem;font-weight:500;position:relative;overflow:hidden;
  transition:var(--ease);white-space:nowrap;
}
.nav-item-card svg{width:18px;height:18px;flex:0 0 auto;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.nav-item-card::before{
  content:"";position:absolute;left:10px;right:10px;top:0;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--pri),rgba(51,230,192,0));opacity:0;transition:var(--ease);
}
.nav-item-card:hover{color:var(--txt);background:rgba(255,255,255,.05);border-color:var(--line)}
.nav-item-card:hover::before{opacity:1}
.nav-item-card.is-active{color:var(--pri);background:var(--pri-mist);border-color:rgba(51,230,192,.28)}
.nav-item-card.is-active::after{content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:0 3px 3px 0;background:var(--pri)}
.nav-item-card.is-active::before{opacity:1}
.nav-item-card.is-active svg{filter:drop-shadow(0 0 6px rgba(51,230,192,.5))}

/* ============ Hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  padding:clamp(38px,5.5vw,72px) 0 clamp(44px,6vw,84px);
  border-bottom:1px solid var(--line2);
  background:
    radial-gradient(120% 100% at 12% 0%,rgba(51,230,192,.10),transparent 62%),
    radial-gradient(90% 80% at 92% 10%,rgba(76,141,255,.08),transparent 60%),
    linear-gradient(180deg,#070C12,#05080D);
}
.page-hero .hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;opacity:.16;
  -webkit-mask-image:radial-gradient(70% 92% at 50% 42%,#000 26%,transparent 78%);
  mask-image:radial-gradient(70% 92% at 50% 42%,#000 26%,transparent 78%);
}
.page-hero .hero-grid-line{
  position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:32px 32px;
  -webkit-mask-image:radial-gradient(80% 70% at 50% 30%,#000 10%,transparent 70%);
  mask-image:radial-gradient(80% 70% at 50% 30%,#000 10%,transparent 70%);
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:center}
.crumbs{display:flex;align-items:center;gap:8px;font-size:.8125rem;color:var(--txt3);margin-bottom:20px;flex-wrap:wrap}
.crumbs a:hover{color:var(--pri)}
.crumbs .sep{color:rgba(255,255,255,.2)}
.crumbs .now{color:var(--txt2)}
.badge-mint{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:.8125rem;font-weight:600;
  background:var(--pri-mist);color:var(--pri);border:1px solid rgba(51,230,192,.26);
}
.badge-mint::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--pri);box-shadow:0 0 8px var(--pri)}
.badge-amber{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:.75rem;font-weight:600;
  background:rgba(255,180,84,.12);color:var(--amber);border:1px solid rgba(255,180,84,.3);
}
h1.hero-title{font-size:clamp(2rem,4.2vw,3.25rem);line-height:1.18;font-weight:700;margin:18px 0 16px}
h1.hero-title em{font-style:normal;color:var(--pri);text-shadow:0 0 26px rgba(51,230,192,.35)}
.hero-sub{color:var(--txt2);font-size:1.0625rem;max-width:560px}
.hero-stats{display:flex;gap:40px;margin:32px 0 28px;flex-wrap:wrap}
.hero-stats .st-num{font-family:"JetBrains Mono",Consolas,monospace;font-size:1.9rem;font-weight:700;color:var(--pri);line-height:1.1}
.hero-stats .st-num small{font-size:.9rem;font-weight:600;margin-left:4px;color:var(--pri)}
.hero-stats .st-label{font-size:.75rem;color:var(--txt3);letter-spacing:.06em;margin-top:6px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:12px;border:0;cursor:pointer;
  background:linear-gradient(135deg,#33E6C0,#16B394);color:#04120F;
  font-weight:700;font-size:.9375rem;transition:var(--ease);
  box-shadow:0 10px 28px rgba(51,230,192,.20);
}
.btn-glow:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 18px 40px rgba(51,230,192,.34)}
.btn-glow:active{transform:translateY(1px)}
.btn-glow .arw{transition:transform var(--ease)}
.btn-glow:hover .arw{transform:translateX(4px)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:12px;cursor:pointer;
  background:transparent;border:1px solid var(--line);color:var(--txt);
  font-weight:600;font-size:.9375rem;transition:var(--ease);
}
.btn-ghost:hover{border-color:rgba(51,230,192,.5);background:rgba(51,230,192,.08);color:var(--pri);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.hero-visual{position:relative}
.hero-figure{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  background:#0B1219;box-shadow:var(--sh);position:relative;
}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,8,13,0) 42%,rgba(5,8,13,.72) 100%);
}
.float-chip{
  position:absolute;left:-18px;bottom:-20px;max-width:62%;
  padding:14px 16px;border-radius:14px;border:1px solid rgba(51,230,192,.28);
  background:linear-gradient(160deg,rgba(255,255,255,.09),rgba(255,255,255,.02));
  backdrop-filter:blur(16px) saturate(120%);
  box-shadow:0 16px 36px rgba(0,0,0,.5);
}
.float-chip .fc-num{font-family:"JetBrains Mono",Consolas,monospace;font-size:1.35rem;font-weight:700;color:var(--pri);line-height:1.15}
.float-chip .fc-txt{font-size:.75rem;color:var(--txt2);margin-top:4px}
.float-badge{
  position:absolute;right:-12px;top:-14px;padding:8px 14px;border-radius:999px;
  background:rgba(13,22,32,.92);border:1px solid rgba(76,141,255,.35);
  font-size:.75rem;color:var(--blue);font-weight:600;letter-spacing:.04em;
  box-shadow:0 10px 26px rgba(0,0,0,.45);
}

/* ============ 通道卡 ============ */
.channel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.channel-card{
  position:relative;padding:26px 24px 24px;border-radius:var(--r-md);
  border:1px solid var(--line);background:linear-gradient(160deg,rgba(255,255,255,.055),rgba(255,255,255,.015));
  transition:var(--ease);overflow:hidden;display:flex;flex-direction:column;gap:10px;
}
.channel-card::after{
  content:"";position:absolute;right:-40px;top:-40px;width:120px;height:120px;border-radius:50%;
  background:radial-gradient(circle,rgba(51,230,192,.28),transparent 70%);
  opacity:0;transition:var(--ease);
}
.channel-card:hover{transform:translateY(-4px);border-color:rgba(51,230,192,.3);box-shadow:var(--sh-hover)}
.channel-card:hover::after{opacity:1}
.channel-card .ch-idx{font-family:"JetBrains Mono",Consolas,monospace;font-size:.75rem;letter-spacing:.16em;color:var(--pri)}
.channel-card h3{font-size:1.0625rem;font-weight:600}
.channel-card p{font-size:.875rem;color:var(--txt2);line-height:1.7}
.channel-card .ch-meta{margin-top:auto;padding-top:14px;font-size:.75rem;color:var(--txt3);border-top:1px dashed var(--line);font-family:"JetBrains Mono",Consolas,monospace}

/* ============ FAQ + 联系卡 ============ */
.support-grid{display:grid;grid-template-columns:minmax(0,1.62fr) minmax(0,1fr);gap:32px;align-items:start}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  position:relative;border:1px solid var(--line);border-radius:14px;overflow:hidden;
  background:rgba(255,255,255,.024);transition:var(--ease);
}
.faq-item:hover{border-color:rgba(255,255,255,.16)}
.faq-item[open]{background:rgba(255,255,255,.05);border-color:rgba(51,230,192,.28);box-shadow:0 14px 34px rgba(0,0,0,.32)}
.faq-item[open]::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(180deg,var(--pri),rgba(51,230,192,.15))}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 22px;cursor:pointer;list-style:none;
  font-size:1.0625rem;font-weight:600;color:var(--txt);
}
.faq-q::-webkit-details-marker{display:none}
.faq-q:focus-visible{outline:2px solid var(--pri);outline-offset:-4px;border-radius:12px}
.faq-plus{position:relative;flex:0 0 auto;width:22px;height:22px;transition:transform var(--ease)}
.faq-plus::before,.faq-plus::after{content:"";position:absolute;background:var(--pri);border-radius:2px}
.faq-plus::before{left:50%;top:3px;bottom:3px;width:2px;transform:translateX(-50%)}
.faq-plus::after{top:50%;left:3px;right:3px;height:2px;transform:translateY(-50%)}
.faq-item[open] .faq-plus{transform:rotate(45deg)}
.faq-a{padding:0 22px 20px;color:var(--txt2);font-size:.9375rem;line-height:1.8}
.faq-a b{color:var(--txt);font-weight:600}
.faq-a .inline-link{color:var(--pri);border-bottom:1px solid rgba(51,230,192,.35)}
.faq-a .inline-link:hover{border-bottom-color:var(--pri)}

.contact-card{
  position:sticky;top:96px;
  padding:28px 26px;border-radius:var(--r-lg);
  border:1px solid rgba(51,230,192,.22);
  background:linear-gradient(160deg,rgba(51,230,192,.09),rgba(255,255,255,.02) 46%,rgba(255,255,255,.012));
  box-shadow:var(--sh);
}
.contact-card h3{font-size:1.25rem;margin:14px 0 8px}
.contact-card .cc-desc{font-size:.875rem;color:var(--txt2);margin-bottom:22px}
.field{margin-bottom:14px}
.field label{display:block;font-size:.6875rem;letter-spacing:.1em;color:var(--txt3);margin-bottom:6px;text-transform:uppercase}
.field input,.field textarea{
  width:100%;padding:12px 14px;min-height:48px;border-radius:12px;
  background:#0B141D;border:1px solid var(--line);color:var(--txt);font-size:.9375rem;
  transition:var(--ease);
}
.field textarea{min-height:88px;resize:vertical;line-height:1.6}
.field input::placeholder,.field textarea::placeholder{color:#44566a}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--pri);box-shadow:0 0 0 3px rgba(51,230,192,.18);
}
.contact-card .btn-glow{width:100%;margin-top:6px}
.cc-meta{margin-top:20px;padding-top:18px;border-top:1px dashed var(--line);display:flex;flex-direction:column;gap:10px;font-size:.8125rem;color:var(--txt2)}
.cc-meta div{display:flex;justify-content:space-between;gap:12px}
.cc-meta b{color:var(--txt);font-family:"JetBrains Mono",Consolas,monospace;font-weight:600}
.cc-meta .ok{color:var(--pri)}

/* ============ 文档卡 ============ */
.doc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.doc-card{
  display:flex;flex-direction:column;gap:12px;padding:26px 24px;border-radius:var(--r-md);
  border:1px solid var(--line);background:var(--panel);transition:var(--ease);position:relative;overflow:hidden;
}
.doc-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,var(--pri),rgba(76,141,255,.5),transparent);
  opacity:.5;transition:var(--ease);
}
.doc-card:hover{transform:translateY(-4px);border-color:rgba(51,230,192,.3);box-shadow:var(--sh-hover)}
.doc-card:hover::before{opacity:1}
.doc-card .doc-idx{font-family:"JetBrains Mono",Consolas,monospace;font-size:.75rem;letter-spacing:.16em;color:var(--blue)}
.doc-card h3{font-size:1.0625rem}
.doc-card p{font-size:.875rem;color:var(--txt2);line-height:1.7}
.doc-link{
  margin-top:auto;display:inline-flex;align-items:center;gap:6px;
  font-size:.8125rem;font-weight:600;color:var(--pri);padding-top:12px;
}
.doc-link .arw{transition:transform var(--ease)}
.doc-link:hover .arw{transform:translateX(4px)}
.doc-link::after{content:"";position:absolute;left:24px;right:24px;bottom:22px;height:1px;background:rgba(51,230,192,.28);transform:scaleX(0);transform-origin:left;transition:var(--ease)}
.doc-link:hover::after{transform:scaleX(1)}

/* ============ CTA ============ */
.cta-panel{
  position:relative;overflow:hidden;border-radius:24px;padding:clamp(32px,4.6vw,56px);
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
  border:1px solid rgba(51,230,192,.26);
  background:
    radial-gradient(90% 140% at 8% 0%,rgba(51,230,192,.20),transparent 58%),
    radial-gradient(70% 120% at 96% 100%,rgba(76,141,255,.16),transparent 60%),
    linear-gradient(140deg,#0C1820,#070C12);
  box-shadow:var(--glow);
}
.cta-panel h2{font-size:clamp(1.4rem,2.5vw,2rem);margin:12px 0 10px}
.cta-panel p{color:var(--txt2);font-size:.9375rem;max-width:540px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ============ 面包屑尾 / 标签 ============ */
.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;padding:7px 14px;border-radius:999px;
  font-size:.8125rem;color:var(--txt2);border:1px solid var(--line);background:rgba(255,255,255,.03);
  transition:var(--ease);
}
.tag:hover{color:var(--pri);border-color:rgba(51,230,192,.4);background:var(--pri-mist)}

/* ============ 页脚 ============ */
.site-foot{background:#04070B;border-top:1px solid var(--line2);padding:clamp(48px,6vw,80px) 0 0;margin-top:clamp(48px,7vw,96px)}
.foot-grid{display:grid;grid-template-columns:1.55fr .9fr .9fr 1.25fr;gap:40px}
.foot-brand .brand{font-size:1.35rem;margin-bottom:16px}
.foot-brand p{color:var(--txt2);font-size:.875rem;max-width:320px}
.foot-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.foot-tags span{
  font-size:.75rem;color:var(--txt3);padding:5px 11px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.02);
}
.foot-col h4{font-size:.9375rem;font-weight:600;margin-bottom:16px;color:var(--txt)}
.foot-col ul{display:flex;flex-direction:column;gap:10px}
.foot-col ul a{font-size:.875rem;color:var(--txt2)}
.foot-col ul a:hover{color:var(--pri)}
.foot-contact{display:flex;flex-direction:column;gap:8px;font-size:.8125rem;color:var(--txt2);margin-bottom:18px}
.foot-contact b{color:var(--txt);font-family:"JetBrains Mono",Consolas,monospace;font-weight:600}
.foot-form{display:flex;flex-direction:column;gap:10px}
.foot-form label{font-size:.75rem;color:var(--txt3)}
.foot-form input{
  width:100%;min-height:44px;padding:11px 14px;border-radius:12px;
  background:#0B141D;border:1px solid var(--line);color:var(--txt);font-size:.875rem;transition:var(--ease);
}
.foot-form input::placeholder{color:#44566a}
.foot-form input:focus{outline:none;border-color:var(--pri);box-shadow:0 0 0 3px rgba(51,230,192,.18)}
.foot-form .btn-glow{width:100%;padding:12px 18px;font-size:.875rem}
.foot-bottom{
  margin-top:44px;padding:20px 0;border-top:1px dashed var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:.8125rem;color:var(--txt3);
}
.foot-bottom .to-top{color:var(--txt2)}
.foot-bottom .to-top:hover{color:var(--pri)}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .channel-grid{grid-template-columns:repeat(2,1fr)}
  .doc-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
  .foot-col:last-child{grid-column:1 / -1}
}
@media (max-width:991px){
  .container{padding:0 24px}
  .nav-toggle{display:inline-flex}
  .nav-cards{
    display:none;position:absolute;left:0;right:0;top:100%;
    flex-wrap:wrap;gap:10px;padding:18px 24px 22px;
    background:rgba(10,17,25,.98);border-bottom:1px solid var(--line);
    box-shadow:0 24px 48px rgba(0,0,0,.55);margin-left:0;
  }
  .nav-cards.is-open{display:flex}
  .nav-item-card{flex:1 1 44%;justify-content:flex-start}
  .head-row{position:relative;flex-wrap:nowrap}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-visual{max-width:560px}
  .support-grid{grid-template-columns:1fr;gap:28px}
  .contact-card{position:static}
  .section-head{margin-bottom:30px}
}
@media (max-width:767px){
  .hero-stats{gap:24px;margin:26px 0 24px}
  .hero-stats .st-num{font-size:1.55rem}
  .channel-grid,.doc-grid{grid-template-columns:1fr}
  .hero-actions .btn-glow,.hero-actions .btn-ghost{width:100%}
  .float-chip{left:10px;bottom:-16px;max-width:78%}
  .float-badge{right:6px;top:-12px}
  .cta-panel{padding:28px 22px}
  .cta-actions{width:100%}
  .cta-actions .btn-glow,.cta-actions .btn-ghost{width:100%}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
  .foot-brand{grid-column:1 / -1}
  .foot-col:last-child{grid-column:1 / -1}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (max-width:575px){
  .container{padding:0 18px}
  .nav-item-card{flex:1 1 100%}
  .faq-q{padding:16px 18px;font-size:1rem}
  .faq-a{padding:0 18px 18px;font-size:.9rem}
  .foot-grid{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .channel-card:hover,.doc-card:hover,.btn-glow:hover,.btn-ghost:hover{transform:none}
}