/* roulang page: index */
:root{
  --bg-deep:#06101F;
  --bg-panel:#0B1526;
  --glass:rgba(18,32,54,.62);
  --glass-strong:rgba(18,32,54,.86);
  --line:rgba(120,200,255,.14);
  --line-strong:rgba(120,200,255,.32);
  --brand:#2F7CFF;
  --brand-2:#2BE8C5;
  --amber:#FFD166;
  --text:#E8F0FF;
  --muted:#9FB0C9;
  --danger:#FF6B6B;
  --ok:#2BE8C5;
  --radius-lg:18px;
  --radius-md:12px;
  --radius-pill:999px;
  --shadow-lg:0 24px 60px rgba(0,0,0,.35);
  --shadow-glow:0 0 0 1px rgba(47,124,255,.35),0 12px 40px rgba(47,124,255,.25);
  --inner-light:inset 0 1px 0 rgba(255,255,255,.08);
  --gap:8px;
  --section:96px;
  --maxw:1240px;
  --font-title:"Alibaba PuHuiTi","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"HarmonyOS Sans","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-deep);
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:none;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-family:var(--font-title);font-weight:800;line-height:1.25;letter-spacing:-.01em}
p{margin:0}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:6px}
::selection{background:rgba(47,124,255,.4);color:#fff}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.wide{max-width:1440px}
.section{padding:var(--section) 0;position:relative}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;margin-bottom:44px;flex-wrap:wrap}
.section-head .eyebrow{margin-bottom:14px}
.section-title{font-size:clamp(26px,3vw,40px)}
.section-sub{color:var(--muted);max-width:640px;margin-top:14px;font-size:16px}
.more-link{display:inline-flex;align-items:center;gap:8px;color:var(--brand-2);font-weight:600;font-size:15px;padding:10px 18px;border:1px solid var(--line);border-radius:var(--radius-pill);transition:.25s ease}
.more-link:hover{border-color:var(--line-strong);background:rgba(43,232,197,.08);transform:translateX(2px)}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:var(--radius-pill);
  background:rgba(47,124,255,.12);
  border:1px solid rgba(47,124,255,.32);
  color:#AFD0FF;font-size:13px;font-weight:600;letter-spacing:.04em;
}
.eyebrow i{color:var(--brand-2);font-size:12px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-height:48px;padding:0 26px;border-radius:var(--radius-pill);
  font-weight:700;font-size:15px;letter-spacing:.02em;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,opacity .22s;
  white-space:nowrap;
}
.btn-primary{background:linear-gradient(120deg,var(--brand),var(--brand-2));color:#04121F;box-shadow:var(--shadow-glow)}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(47,124,255,.5),0 18px 46px rgba(47,124,255,.35)}
.btn-primary:active{transform:translateY(0);filter:brightness(.98)}
.btn-ghost{background:var(--glass);border:1px solid var(--line);color:var(--text);backdrop-filter:blur(12px)}
.btn-ghost:hover{border-color:var(--line-strong);transform:translateY(-2px);background:rgba(47,124,255,.12)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.5;pointer-events:none;transform:none}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:600;letter-spacing:.03em;
  background:rgba(43,232,197,.12);color:var(--brand-2);
  border:1px solid rgba(43,232,197,.28);
}
.badge-blue{background:rgba(47,124,255,.14);color:#9CC6FF;border-color:rgba(47,124,255,.32)}
.badge-amber{background:rgba(255,209,102,.12);color:var(--amber);border-color:rgba(255,209,102,.3)}

/* ============ HEADER / NAV ============ */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(7,13,24,.72);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:28px;height:72px}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0}
.logo-mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  display:grid;place-items:center;color:#04121F;font-size:16px;
  box-shadow:0 8px 24px rgba(47,124,255,.35);
}
.logo-text{font-family:var(--font-title);font-weight:800;font-size:17px;letter-spacing:.01em;line-height:1.15}
.logo-text span{display:block;font-size:11px;font-weight:500;color:var(--muted);letter-spacing:.14em}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-links a{
  padding:9px 15px;border-radius:10px;font-size:14.5px;font-weight:600;color:#C6D5EC;
  transition:.2s ease;position:relative
}
.nav-links a:hover{color:#fff;background:rgba(47,124,255,.12)}
.nav-links a.active{color:#fff;background:rgba(47,124,255,.16)}
.nav-links a.active::after{
  content:"";position:absolute;left:15px;right:15px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto}
.command-search{
  display:flex;align-items:center;gap:10px;
  height:42px;padding:0 12px 0 14px;min-width:216px;
  background:var(--glass);border:1px solid var(--line);
  border-radius:var(--radius-pill);color:var(--muted);font-size:14px;
  transition:.22s ease;
}
.command-search:hover{border-color:var(--line-strong);background:rgba(18,32,54,.85)}
.command-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(47,124,255,.18)}
.command-search input{flex:1;background:none;border:none;outline:none;font-size:14px;color:var(--text);min-width:0}
.command-search input::placeholder{color:#7A8DA8}
.kbd{
  font-size:11px;font-weight:600;color:#93A7C4;border:1px solid var(--line);
  border-radius:6px;padding:2px 6px;background:rgba(6,16,31,.6);
}
.icon-btn{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:var(--glass);border:1px solid var(--line);color:#C6D5EC;transition:.22s ease;
}
.icon-btn:hover{color:#fff;border-color:var(--line-strong);background:rgba(47,124,255,.14)}
.nav-toggle{display:none}

/* mobile drawer */
.drawer{
  position:fixed;inset:0;z-index:200;
  background:rgba(6,16,31,.96);
  backdrop-filter:blur(20px);
  padding:24px;display:flex;flex-direction:column;
  transform:translateX(100%);transition:transform .32s cubic-bezier(.4,0,.2,1);
  visibility:hidden;
}
.drawer.open{transform:translateX(0);visibility:visible}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:36px}
.drawer-nav a{
  display:block;padding:18px 6px;font-size:22px;font-weight:700;font-family:var(--font-title);
  border-bottom:1px solid var(--line);color:#DCE7F8;
}
.drawer-nav a.active{color:var(--brand-2)}
.drawer-cta{margin-top:auto;display:grid;gap:12px}

/* ============ HERO ============ */
.hero{position:relative;overflow:hidden;padding:80px 0 88px}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(120,200,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(120,200,255,.055) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 90% 70% at 50% 30%,#000 30%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 90% 70% at 50% 30%,#000 30%,transparent 78%);
}
.hero::after{
  content:"";position:absolute;top:-260px;left:50%;transform:translateX(-50%);
  width:1100px;height:700px;pointer-events:none;
  background:radial-gradient(circle at 50% 50%,rgba(47,124,255,.26),transparent 62%);
  filter:blur(20px);
}
.hero-grid{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(34px,5vw,64px);margin:22px 0 20px;font-weight:900;letter-spacing:-.02em}
.hero h1 em{font-style:normal;background:linear-gradient(100deg,var(--brand-2),var(--brand));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{color:#B8C8DE;font-size:17px;max-width:600px;line-height:1.9}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin:32px 0 34px}
.hero-stats{display:flex;gap:12px;flex-wrap:wrap}
.stat-chip{
  display:flex;align-items:center;gap:10px;padding:12px 18px;border-radius:14px;
  background:var(--glass);border:1px solid var(--line);box-shadow:var(--inner-light);
  font-size:14px;color:#CBD9EE;font-weight:600;
}
.stat-chip i{color:var(--brand-2);font-size:14px}
.hero-visual{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-lg);aspect-ratio:4/3.4;background:linear-gradient(140deg,#0B1526,#122544)}
.hero-visual img{width:100%;height:100%;object-fit:cover;opacity:.82}
.hero-visual .glow{position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,16,31,0) 35%,rgba(6,16,31,.88))}
.hero-visual .float-card{
  position:absolute;left:20px;right:20px;bottom:20px;
  background:var(--glass-strong);border:1px solid var(--line);border-radius:14px;
  padding:16px 18px;backdrop-filter:blur(14px);
}
.float-card .fc-row{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted);margin-bottom:10px}
.bar{height:6px;border-radius:6px;background:rgba(120,200,255,.14);overflow:hidden;margin-bottom:8px}
.bar i{display:block;height:100%;border-radius:6px;background:linear-gradient(90deg,var(--brand),var(--brand-2))}
.bar.b2 i{background:linear-gradient(90deg,var(--amber),#FF9F6B);width:56%}
.bar.b1 i{width:78%}

/* ============ 品牌主张 ============ */
.claim{background:linear-gradient(180deg,rgba(11,21,38,.7),rgba(6,16,31,0))}
.claim-grid{display:grid;grid-template-columns:6fr 6fr;gap:56px;align-items:center}
.claim h2{font-size:clamp(26px,3vw,40px);margin-bottom:18px}
.claim p{color:var(--muted);font-size:16.5px}
.claim-points{display:grid;gap:16px}
.point-card{
  display:flex;gap:16px;padding:20px;border-radius:var(--radius-lg);
  background:var(--glass);border:1px solid var(--line);box-shadow:var(--inner-light);
  transition:.26s ease;
}
.point-card:hover{transform:translateY(-3px);border-color:var(--line-strong);background:rgba(24,42,70,.72)}
.point-icon{
  width:46px;height:46px;flex-shrink:0;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(47,124,255,.24),rgba(43,232,197,.18));
  border:1px solid var(--line);color:var(--brand-2);font-size:18px;
}
.point-card h3{font-size:17px;margin-bottom:6px}
.point-card p{font-size:14.5px;color:var(--muted);line-height:1.75}

/* ============ 图文交错 ============ */
.story-row{display:grid;gap:56px;align-items:center;grid-template-columns:5fr 7fr}
.story-row.rev{grid-template-columns:7fr 5fr}
.story-row + .story-row{margin-top:72px}
.story-media{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-lg);aspect-ratio:16/11;background:linear-gradient(150deg,#0B1526,#16304F)}
.story-media img{width:100%;height:100%;object-fit:cover;opacity:.9;transition:transform .5s ease}
.story-media:hover img{transform:scale(1.03)}
.story-body h3{font-size:clamp(20px,2.2vw,26px);margin-bottom:16px}
.story-body p{color:var(--muted);font-size:16px}
.story-list{margin-top:20px;display:grid;gap:12px}
.story-list li{display:flex;gap:12px;color:#C7D6EA;font-size:15px}
.story-list i{color:var(--brand-2);margin-top:6px;font-size:13px}
.arc-deco{position:absolute;right:-60px;top:40px;width:320px;height:320px;border:1px solid rgba(120,200,255,.12);border-radius:50%;pointer-events:none}
.arc-deco::after{content:"";position:absolute;inset:46px;border:1px dashed rgba(43,232,197,.16);border-radius:50%}

/* ============ 精选内容卡 ============ */
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.f-card{
  position:relative;display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--radius-lg);border:1px solid var(--line);
  background:var(--glass);box-shadow:var(--inner-light);
  transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
}
.f-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 22px 50px rgba(0,0,0,.4)}
.f-card.span{grid-column:span 2;flex-direction:row}
.f-cover{position:relative;overflow:hidden;background:linear-gradient(140deg,#0B1526,#1A3557)}
.f-card .f-cover{aspect-ratio:16/9}
.f-card.span .f-cover{width:46%;aspect-ratio:auto;flex-shrink:0}
.f-cover img{width:100%;height:100%;object-fit:cover;opacity:.86;transition:transform .5s ease}
.f-card:hover .f-cover img{transform:scale(1.04)}
.f-body{padding:26px;display:flex;flex-direction:column;gap:12px;flex:1}
.f-body h3{font-size:20px;line-height:1.45}
.f-card.span .f-body h3{font-size:26px}
.f-body p{color:var(--muted);font-size:15px;line-height:1.75}
.f-meta{display:flex;align-items:center;gap:14px;margin-top:auto;font-size:13px;color:#8698B3;padding-top:6px}
.f-meta .go{color:var(--brand-2);font-weight:600;display:inline-flex;align-items:center;gap:6px}

/* ============ 信任背书 ============ */
.trust{background:linear-gradient(180deg,rgba(11,21,38,.5),rgba(6,16,31,0))}
.trust-panel{
  border-radius:24px;border:1px solid var(--line);background:var(--glass);
  padding:44px;box-shadow:var(--inner-light);backdrop-filter:blur(10px);
}
.trust-bars{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-bottom:40px}
.t-bar{padding:22px;border-radius:var(--radius-lg);border:1px solid var(--line);background:rgba(6,16,31,.45)}
.t-bar .label{font-size:13px;color:var(--muted);display:flex;justify-content:space-between;margin-bottom:12px}
.skeleton{height:10px;border-radius:6px;background:linear-gradient(90deg,rgba(120,200,255,.1),rgba(120,200,255,.22),rgba(120,200,255,.1));background-size:220% 100%;animation:shimmer 2.4s infinite linear}
@keyframes shimmer{0%{background-position:120% 0}100%{background-position:-120% 0}}
.badges{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:36px}
.chip-badge{
  display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:rgba(6,16,31,.5);font-size:13.5px;color:#C4D3E8;font-weight:600;
}
.chip-badge i{color:var(--amber);font-size:13px}
.logo-wall{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.logo-slot{
  height:64px;border-radius:var(--radius-md);border:1px dashed var(--line);
  background:linear-gradient(120deg,rgba(120,200,255,.06),rgba(120,200,255,.02));
  display:grid;place-items:center;color:#6E8099;font-size:13px;letter-spacing:.08em;
}

/* ============ 最新信息列表 ============ */
.post-list{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.post-card{
  border-radius:var(--radius-lg);border:1px solid var(--line);background:var(--glass);
  padding:24px;transition:.26s ease;box-shadow:var(--inner-light);
}
.post-card:hover{transform:translateY(-4px);border-color:var(--line-strong);background:rgba(24,42,70,.72)}
.post-card h3{font-size:18px;line-height:1.55;margin-bottom:10px}
.post-card h3 a:hover{color:var(--brand-2)}
.post-card .excerpt{color:var(--muted);font-size:14.5px;line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;align-items:center;gap:14px;margin-top:16px;font-size:13px;color:#8698B3}
.empty{
  grid-column:span 2;padding:48px 24px;text-align:center;color:var(--muted);
  border:1px dashed var(--line);border-radius:var(--radius-lg);background:rgba(6,16,31,.5);
}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.faq-item{border-radius:var(--radius-md);border:1px solid var(--line);background:var(--glass);overflow:hidden;transition:.24s ease}
.faq-item.open{border-color:rgba(43,232,197,.38);background:rgba(20,38,62,.78)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;text-align:left;font-size:16.5px;font-weight:700;font-family:var(--font-title);
  border-left:3px solid transparent;transition:.24s ease;
}
.faq-item.open .faq-q{border-left-color:var(--brand-2)}
.faq-q .plus{flex-shrink:0;width:26px;height:26px;border-radius:8px;display:grid;place-items:center;color:var(--brand-2);border:1px solid var(--line);transition:transform .3s ease}
.faq-item.open .plus{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s ease}
.faq-a p{padding:0 22px 22px;color:var(--muted);font-size:15px;line-height:1.8}

/* ============ CTA / 订阅 ============ */
.cta-panel{
  position:relative;overflow:hidden;border-radius:26px;border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(47,124,255,.16),rgba(43,232,197,.1)),rgba(11,21,38,.9);
  padding:56px 48px;box-shadow:var(--shadow-lg);
}
.cta-panel::before{
  content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,124,255,.34),transparent 66%);
}
.cta-inner{position:relative;display:grid;grid-template-columns:6fr 5fr;gap:44px;align-items:center}
.cta-inner h2{font-size:clamp(24px,2.6vw,34px);margin-bottom:14px}
.cta-inner p{color:#B9C9DE;font-size:16px}
.sub-form{display:flex;gap:12px;flex-wrap:wrap}
.sub-form input{
  flex:1;min-width:200px;height:50px;padding:0 18px;border-radius:var(--radius-pill);
  background:rgba(6,16,31,.72);border:1px solid var(--line);color:var(--text);outline:none;transition:.22s ease;
}
.sub-form input::placeholder{color:#7B8DA7}
.sub-form input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(47,124,255,.2)}
.form-hint{font-size:12.5px;color:#7F91AC;margin-top:12px}
.form-hint a{color:var(--brand-2)}
.form-msg{font-size:13.5px;margin-top:10px;color:var(--ok);display:none}
.form-msg.err{color:var(--danger)}
.form-msg.show{display:block}

/* ============ FOOTER ============ */
.site-footer{border-top:1px solid var(--line);background:rgba(4,11,21,.9);padding:64px 0 0;margin-top:24px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:44px;padding-bottom:48px}
.footer-brand .logo{margin-bottom:18px}
.footer-brand p{color:var(--muted);font-size:14.5px;max-width:320px}
.footer-col h4{font-size:15px;margin-bottom:18px;color:#fff;font-weight:700}
.footer-col a{display:block;color:#95A7C0;font-size:14.5px;padding:6px 0;transition:.2s ease}
.footer-col a:hover{color:var(--brand-2);padding-left:4px}
.footer-contact li{color:#95A7C0;font-size:14.5px;padding:6px 0;display:flex;gap:10px}
.footer-contact i{color:var(--brand);margin-top:6px;font-size:13px}
.footer-bottom{
  border-top:1px solid var(--line);padding:24px 0 32px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:#7A8CA6;font-size:13.5px;
}
.footer-bottom a{color:#9FB0C9}
.footer-bottom a:hover{color:var(--brand-2)}

/* ============ RESPONSIVE ============ */
@media (max-width:1280px){
  .container{padding:0 22px}
  .hero-grid{gap:40px}
}
@media (max-width:1024px){
  :root{--section:72px}
  .nav-links{display:none}
  .nav-toggle{display:grid}
  .command-search{min-width:170px}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .claim-grid{grid-template-columns:1fr;gap:36px}
  .story-row,.story-row.rev{grid-template-columns:1fr;gap:32px}
  .story-row.rev .story-media{order:-1}
  .trust-bars{grid-template-columns:1fr 1fr}
  .logo-wall{grid-template-columns:repeat(3,1fr)}
  .cta-inner{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:960px){
  .nav-right .command-search{display:none}
}
@media (max-width:768px){
  :root{--section:52px}
  .section-head{flex-direction:column;align-items:flex-start;gap:18px}
  .feature-grid{grid-template-columns:1fr}
  .f-card.span{grid-column:span 1;flex-direction:column}
  .f-card.span .f-cover{width:100%;aspect-ratio:16/9}
  .f-card.span .f-body h3{font-size:21px}
  .post-list{grid-template-columns:1fr}
  .empty{grid-column:span 1}
  .faq-grid{grid-template-columns:1fr}
  .trust-panel{padding:28px}
  .trust-bars{grid-template-columns:1fr}
  .cta-panel{padding:36px 24px}
  .hero{padding:52px 0 64px}
}
@media (max-width:560px){
  .container{padding:0 18px}
  .logo-text{font-size:15px}
  .logo-text span{font-size:10px}
  .hero-cta .btn{width:100%}
  .logo-wall{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .hero-stats{width:100%}
  .stat-chip{width:100%}
  .sub-form input{min-width:100%}
  .sub-form .btn{width:100%}
}
@media (max-width:420px){
  .logo-text span{display:none}
  .hero h1{font-size:30px}
  .post-card{padding:20px}
}

/* roulang page: article */
:root{
  --bg:#06101F;
  --bg-2:#0B1526;
  --panel:rgba(18,32,54,.62);
  --panel-solid:#0E1B2E;
  --line:rgba(120,200,255,.14);
  --line-strong:rgba(120,200,255,.34);
  --blue:#2F7CFF;
  --teal:#2BE8C5;
  --amber:#FFD166;
  --text:#E8F0FF;
  --muted:#9FB0C9;
  --danger:#FF6B6B;
  --radius-lg:18px;
  --radius-sm:12px;
  --shadow:0 24px 60px rgba(0,0,0,.35);
  --inner:inset 0 1px 0 rgba(255,255,255,.08);
  --container:1240px;
  --wide:1440px;
  --font:"HarmonyOS Sans SC","PingFang SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.75;
  color:var(--text);
  background:
    radial-gradient(900px 620px at 10% -10%, rgba(47,124,255,.20), transparent 62%),
    radial-gradient(760px 520px at 92% -4%, rgba(43,232,197,.10), transparent 58%),
    linear-gradient(180deg,#06101F 0%,#071223 45%,#06101F 100%);
  background-attachment:fixed;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(120,200,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,200,255,.045) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:linear-gradient(to bottom,rgba(0,0,0,.85),transparent 68%);
  mask-image:linear-gradient(to bottom,rgba(0,0,0,.85),transparent 68%);
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;}
::selection{background:rgba(43,232,197,.32);color:#fff;}

/* ============ 布局容器 ============ */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;position:relative;z-index:1;}
.container.wide{max-width:var(--wide);}
.container.thin{max-width:840px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(7,13,24,.72);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  display:flex;align-items:center;gap:26px;
  height:70px;max-width:var(--wide);
  margin:0 auto;padding:0 24px;
}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.logo-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--blue),var(--teal));
  color:#04121F;font-size:15px;
  box-shadow:0 0 0 1px rgba(47,124,255,.35),0 12px 30px rgba(47,124,255,.28);
}
.logo-text{display:flex;flex-direction:column;font-weight:700;font-size:16px;line-height:1.15;}
.logo-text span{font-size:9.5px;letter-spacing:.2em;color:var(--muted);font-weight:500;margin-top:2px;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:10px;}
.nav-links a{
  position:relative;padding:9px 15px;border-radius:999px;font-size:14.5px;
  color:var(--muted);transition:color .2s,background .2s,box-shadow .2s;
}
.nav-links a:hover{color:var(--text);background:rgba(120,200,255,.08);}
.nav-links a.active{color:var(--text);background:rgba(47,124,255,.16);box-shadow:inset 0 0 0 1px rgba(47,124,255,.32);}
.nav-links a.active::after{
  content:"";position:absolute;left:50%;bottom:-1px;width:16px;height:2px;
  transform:translateX(-50%);background:var(--teal);border-radius:2px;
}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:10px;}
.command-search{
  display:flex;align-items:center;gap:9px;height:38px;padding:0 12px;
  border-radius:999px;background:rgba(18,32,54,.7);border:1px solid var(--line);
  color:var(--muted);transition:border-color .2s,box-shadow .2s;
}
.command-search:focus-within{border-color:rgba(47,124,255,.55);box-shadow:0 0 0 4px rgba(47,124,255,.14);}
.command-search input{
  background:transparent;border:0;outline:none;color:var(--text);
  width:186px;font-size:14px;
}
.command-search input::placeholder{color:#6E7F99;}
.command-search .kbd{font-size:11px;padding:2px 6px;border-radius:6px;border:1px solid var(--line);color:var(--muted);}
.icon-btn{
  width:38px;height:38px;border-radius:999px;display:grid;place-items:center;
  background:rgba(18,32,54,.7);border:1px solid var(--line);color:var(--muted);
  cursor:pointer;transition:color .2s,border-color .2s,background .2s;
}
.icon-btn:hover{color:var(--teal);border-color:var(--line-strong);background:rgba(43,232,197,.08);}
.icon-btn:focus-visible{outline:2px solid var(--amber);outline-offset:2px;}
.nav-toggle{display:none;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:0;cursor:pointer;border-radius:999px;
  font-size:14.5px;font-weight:600;padding:12px 22px;
  transition:transform .2s,box-shadow .2s,filter .2s,border-color .2s,background .2s;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--blue),var(--teal));
  color:#04121F;
  box-shadow:0 0 0 1px rgba(47,124,255,.35),0 12px 40px rgba(47,124,255,.25);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(47,124,255,.45),0 18px 46px rgba(47,124,255,.34);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:rgba(18,32,54,.6);border:1px solid var(--line);color:var(--text);
}
.btn-ghost:hover{border-color:var(--line-strong);background:rgba(120,200,255,.1);transform:translateY(-2px);}
.btn:focus-visible{outline:2px solid var(--amber);outline-offset:2px;}
.btn-sm{padding:9px 17px;font-size:13.5px;}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;}

/* ============ 阅读进度 ============ */
.read-progress{
  position:fixed;top:0;left:0;height:3px;width:0;z-index:200;
  background:linear-gradient(90deg,var(--blue),var(--teal));
  box-shadow:0 0 14px rgba(43,232,197,.6);
  transition:width .12s linear;
}

/* ============ 文章头部区域 ============ */
.article-hero{
  position:relative;
  padding:46px 0 40px;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(180deg,rgba(6,16,31,.72),rgba(6,16,31,.94)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.article-hero::after{
  content:"";position:absolute;left:-10%;bottom:-60%;width:70%;height:180%;
  border:1px solid rgba(47,124,255,.18);border-radius:50%;
  pointer-events:none;
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:9px;
  font-size:13.5px;color:var(--muted);margin-bottom:22px;
}
.breadcrumb a{transition:color .2s;}
.breadcrumb a:hover{color:var(--teal);}
.breadcrumb i{font-size:10px;opacity:.6;}
.breadcrumb .current{color:var(--text);opacity:.9;max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(47,124,255,.14);
  border:1px solid rgba(47,124,255,.3);
  color:#BFDCFF;font-size:12.5px;letter-spacing:.06em;
  margin-bottom:18px;
}
.eyebrow i{color:var(--teal);}
.article-hero h1{
  font-size:clamp(28px,3.9vw,48px);
  line-height:1.24;
  max-width:900px;
  letter-spacing:-.02em;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px 22px;
  margin-top:24px;color:var(--muted);font-size:14px;
}
.article-meta span{display:inline-flex;align-items:center;gap:8px;}
.article-meta i{color:var(--teal);font-size:13px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;font-size:12.5px;font-weight:600;
  border:1px solid rgba(43,232,197,.34);
  background:rgba(43,232,197,.12);color:var(--teal);
}
.badge-amber{border-color:rgba(255,209,102,.34);background:rgba(255,209,102,.12);color:var(--amber);}

/* ============ 文章主体 ============ */
.article-shell{padding:52px 0 20px;}
.article-wrap{max-width:820px;margin:0 auto;}
.article-cover{
  border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  margin-bottom:42px;
  background:linear-gradient(135deg,rgba(47,124,255,.28),rgba(43,232,197,.12));
}
.article-cover img{width:100%;aspect-ratio:16/8;object-fit:cover;}
.article-body{font-size:17.5px;line-height:1.88;color:#D8E4F8;word-break:break-word;}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 20px;}
.article-body h2{
  font-size:clamp(21px,2.4vw,29px);
  margin:46px 0 18px;color:#fff;
  padding-left:16px;border-left:3px solid var(--teal);
  line-height:1.35;
}
.article-body h3{font-size:20px;margin:34px 0 14px;color:#F2F7FF;}
.article-body h4{font-size:17.5px;margin:26px 0 12px;color:var(--teal);}
.article-body ul,.article-body ol{padding-left:22px;margin:0 0 22px;}
.article-body li{margin:9px 0;}
.article-body ul li::marker{color:var(--teal);}
.article-body ol li::marker{color:var(--amber);font-weight:700;}
.article-body a{color:var(--teal);border-bottom:1px solid rgba(43,232,197,.4);transition:color .2s,border-color .2s;}
.article-body a:hover{color:#7FF3DD;border-color:#7FF3DD;}
.article-body blockquote{
  margin:28px 0;padding:20px 24px;
  border-left:3px solid var(--amber);
  background:linear-gradient(90deg,rgba(18,32,54,.85),rgba(18,32,54,.35));
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:#C6D5EC;font-size:16.5px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:14px;margin:26px 0;border:1px solid var(--line);}
.article-body hr{border:0;border-top:1px solid var(--line);margin:38px 0;}
.article-body strong{color:#fff;}
.article-body code{
  background:rgba(47,124,255,.16);padding:2px 7px;border-radius:6px;
  font-size:.92em;color:#BFDCFF;
}
.article-body table{
  width:100%;border-collapse:collapse;margin:26px 0;font-size:15.5px;
  border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden;
  display:block;overflow-x:auto;
}
.article-body th,.article-body td{padding:11px 14px;border-bottom:1px solid var(--line);text-align:left;}
.article-body th{background:rgba(47,124,255,.14);color:#fff;font-weight:600;white-space:nowrap;}
.article-body tr:last-child td{border-bottom:0;}

/* 无内容状态 */
.empty-state{
  text-align:center;padding:66px 26px;
  border:1px dashed var(--line-strong);border-radius:var(--radius-lg);
  background:var(--panel);box-shadow:var(--inner);
}
.empty-state i{font-size:34px;color:var(--blue);margin-bottom:18px;display:block;}
.empty-state h2{font-size:22px;margin-bottom:12px;}
.empty-state p{color:var(--muted);max-width:460px;margin:0 auto 26px;font-size:15.5px;}

/* ============ 文末信息与返回 ============ */
.article-footer{
  margin-top:44px;padding-top:28px;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;
}
.article-tags{display:flex;flex-wrap:wrap;gap:9px;}
.tag{
  font-size:12.5px;color:var(--muted);padding:6px 13px;border-radius:999px;
  border:1px solid var(--line);background:rgba(18,32,54,.55);transition:.2s;
}
.tag:hover{color:var(--teal);border-color:rgba(43,232,197,.4);}
.article-nav{display:flex;flex-wrap:wrap;gap:10px;}

/* ============ 相关推荐 ============ */
.related{padding:66px 0 80px;}
.section-head{
  display:flex;flex-wrap:wrap;gap:14px;align-items:flex-end;justify-content:space-between;
  margin-bottom:30px;
}
.section-head h2{font-size:clamp(22px,2.6vw,32px);}
.section-head .sub{color:var(--muted);font-size:14.5px;margin-top:8px;}
.link-more{color:var(--teal);font-size:14.5px;display:inline-flex;align-items:center;gap:7px;transition:gap .2s;}
.link-more:hover{gap:12px;}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.card{
  display:flex;flex-direction:column;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--inner);
  transition:transform .25s,border-color .25s,box-shadow .25s;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow);}
.card:focus-within{border-color:rgba(255,209,102,.55);}
.card-media{position:relative;overflow:hidden;background:linear-gradient(135deg,rgba(47,124,255,.3),rgba(43,232,197,.14));}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s;}
.card:hover .card-media img{transform:scale(1.05);}
.card-body{padding:19px 20px 22px;display:flex;flex-direction:column;gap:11px;flex:1;}
.card-body h3{font-size:17.5px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-body p{font-size:14.5px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  padding-top:4px;font-size:13px;color:var(--muted);
}
.card-foot .go{color:var(--teal);display:inline-flex;align-items:center;gap:6px;transition:gap .2s;}
.card:hover .card-foot .go{gap:11px;}

/* ============ CTA ============ */
.cta-band{padding:0 0 84px;}
.cta-inner{
  position:relative;overflow:hidden;
  border-radius:22px;border:1px solid var(--line);
  background-image:linear-gradient(120deg,rgba(6,16,31,.88),rgba(11,21,38,.72)),url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  padding:52px 48px;
  display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between;
  box-shadow:var(--shadow);
}
.cta-inner h2{font-size:clamp(22px,2.6vw,32px);max-width:520px;margin-bottom:12px;}
.cta-inner p{color:var(--muted);max-width:520px;font-size:15.5px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ============ 页脚 ============ */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,21,38,.6),rgba(6,16,31,.95));
  padding:58px 0 26px;
  position:relative;z-index:1;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:38px;
  padding-bottom:38px;border-bottom:1px solid var(--line);
}
.footer-brand p{color:var(--muted);font-size:14.5px;line-height:1.8;margin-top:18px;max-width:380px;}
.footer-col h4{font-size:14.5px;color:#fff;margin-bottom:16px;letter-spacing:.04em;}
.footer-col a{
  display:block;color:var(--muted);font-size:14.5px;padding:6px 0;
  transition:color .2s,transform .2s;
}
.footer-col a:hover{color:var(--teal);transform:translateX(3px);}
.footer-contact{list-style:none;padding:0;margin:0;}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;color:var(--muted);font-size:14.5px;padding:6px 0;}
.footer-contact i{color:var(--teal);margin-top:5px;font-size:13px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;
  padding-top:22px;color:#7E8FA8;font-size:13.5px;
}
.footer-bottom a{color:#9FB0C9;transition:color .2s;}
.footer-bottom a:hover{color:var(--teal);}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .container{padding:0 22px;}
  .card-grid{gap:18px;}
}
@media (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .article-shell{padding-top:42px;}
}
@media (max-width:960px){
  .nav-toggle{display:grid;}
  .command-search{display:none;}
  .nav-links{
    position:fixed;left:0;right:0;top:70px;bottom:0;
    flex-direction:column;align-items:stretch;gap:6px;
    margin:0;padding:24px 22px 40px;
    background:rgba(6,16,31,.97);
    backdrop-filter:blur(18px);
    transform:translateY(-14px);opacity:0;pointer-events:none;
    transition:transform .26s,opacity .26s;
    overflow-y:auto;
  }
  .nav-links.open{transform:none;opacity:1;pointer-events:auto;}
  .nav-links a{font-size:19px;padding:15px 18px;border-radius:14px;}
  .nav-links a.active::after{display:none;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .cta-inner{padding:40px 30px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .article-hero{padding:34px 0 32px;}
  .breadcrumb .current{max-width:200px;}
  .article-body{font-size:17px;line-height:1.85;}
  .article-body h2{margin-top:36px;}
  .article-shell{padding:36px 0 12px;}
  .article-cover{margin-bottom:32px;}
  .related{padding:52px 0 62px;}
  .cta-band{padding-bottom:64px;}
}
@media (max-width:560px){
  .container{padding:0 18px;}
  .nav-wrap{height:64px;padding:0 18px;gap:14px;}
  .nav-links{top:64px;}
  .logo-text{font-size:14.6px;}
  .logo-text span{font-size:8.6px;letter-spacing:.16em;}
  .card-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .article-footer{flex-direction:column;align-items:flex-start;}
  .cta-inner{padding:34px 22px;border-radius:18px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;justify-content:center;}
  .article-body{font-size:16.5px;}
}
@media (max-width:420px){
  .logo-text span{display:none;}
  .btn{padding:11px 18px;font-size:14px;}
  .article-meta{font-size:13.2px;gap:10px 16px;}
}

/* roulang page: category1 */
:root{
  --bg-900:#06101F;
  --bg-800:#0B1526;
  --bg-700:#101E33;
  --panel:rgba(18,32,54,.62);
  --panel-solid:#132340;
  --line:rgba(120,200,255,.14);
  --line-strong:rgba(120,200,255,.30);
  --primary:#2F7CFF;
  --mint:#2BE8C5;
  --amber:#FFD166;
  --text:#E8F0FF;
  --muted:#9FB0C9;
  --danger:#FF6B6B;
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:12px;
  --shadow-lg:0 24px 60px rgba(0,0,0,.35);
  --shadow-md:0 16px 40px rgba(0,0,0,.28);
  --shadow-glow:0 0 0 1px rgba(47,124,255,.35),0 12px 40px rgba(47,124,255,.25);
  --container:1240px;
  --gutter:96px;
  --mono:"Inter","DIN Alternate",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:
    radial-gradient(1100px 620px at 12% -8%,rgba(47,124,255,.20),transparent 60%),
    radial-gradient(900px 520px at 92% 4%,rgba(43,232,197,.12),transparent 62%),
    linear-gradient(180deg,var(--bg-900) 0%,#071426 46%,var(--bg-900) 100%);
  background-attachment:fixed;
  color:var(--text);
  font-family:"HarmonyOS Sans","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.78;
  font-weight:400;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .22s ease,opacity .22s ease;}
a:hover{color:var(--mint);}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none;}
input{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.24;font-weight:700;letter-spacing:.005em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:6px;}
::selection{background:rgba(47,124,255,.4);color:#fff;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 28px;}
.container.wide{max-width:1440px;}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:999px;
  background:rgba(43,232,197,.10);
  border:1px solid rgba(43,232,197,.28);
  color:var(--mint);
  font-size:13px;font-weight:600;letter-spacing:.06em;
}
.eyebrow i{font-size:11px;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,13,24,.72);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px;}
.logo{display:inline-flex;align-items:center;gap:11px;flex-shrink:0;color:var(--text);}
.logo:hover{color:var(--text);}
.logo-mark{
  width:36px;height:36px;border-radius:11px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--mint));
  color:#04101D;font-size:16px;
  box-shadow:0 10px 26px rgba(47,124,255,.35);
}
.logo-text{display:flex;flex-direction:column;font-size:16.5px;font-weight:700;line-height:1.15;letter-spacing:.02em;}
.logo-text span{font-family:var(--mono);font-size:9.5px;font-weight:600;letter-spacing:.22em;color:var(--muted);}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-links a{
  position:relative;padding:9px 14px;border-radius:10px;
  font-size:14.5px;font-weight:500;color:var(--muted);
  transition:background .22s ease,color .22s ease;
}
.nav-links a:hover{color:var(--text);background:rgba(120,200,255,.08);}
.nav-links a.active{color:var(--text);background:rgba(47,124,255,.14);}
.nav-links a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--mint));
}
.nav-right{display:flex;align-items:center;gap:10px;}
.command-search{
  display:flex;align-items:center;gap:9px;
  padding:0 12px;height:40px;min-width:248px;
  border-radius:999px;border:1px solid var(--line);
  background:rgba(18,32,54,.66);
  transition:border-color .22s ease,box-shadow .22s ease;
}
.command-search:focus-within{border-color:var(--line-strong);box-shadow:0 0 0 3px rgba(47,124,255,.16);}
.command-search i{color:var(--muted);font-size:13px;}
.command-search input{
  flex:1;background:none;border:0;outline:none;font-size:13.5px;color:var(--text);min-width:0;
}
.command-search input::placeholder{color:#6C7F9B;}
.kbd{
  font-family:var(--mono);font-size:10.5px;color:var(--muted);
  border:1px solid var(--line);border-radius:6px;padding:2px 6px;background:rgba(255,255,255,.04);
}
.icon-btn{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  border:1px solid var(--line);background:rgba(18,32,54,.66);color:var(--muted);
  transition:border-color .22s ease,color .22s ease,transform .22s ease;
}
.icon-btn:hover{color:var(--mint);border-color:var(--line-strong);transform:translateY(-1px);}
.nav-toggle{display:none;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-height:46px;padding:0 24px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.02em;
  transition:transform .22s ease,box-shadow .22s ease,filter .22s ease,border-color .22s ease,background .22s ease;
}
.btn-primary{
  background:linear-gradient(120deg,var(--primary),var(--mint));
  color:#04101D;
  box-shadow:var(--shadow-glow);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);color:#04101D;box-shadow:0 0 0 1px rgba(47,124,255,.5),0 18px 46px rgba(47,124,255,.38);}
.btn-primary:active{transform:translateY(0);filter:brightness(.98);}
.btn-ghost{
  background:rgba(18,32,54,.6);border:1px solid var(--line);color:var(--text);
}
.btn-ghost:hover{border-color:var(--line-strong);color:var(--text);transform:translateY(-2px);background:rgba(24,42,70,.75);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{min-height:38px;padding:0 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;transform:none;}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:78px 0 66px;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center 30%;
  opacity:.24;filter:saturate(.85);
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(100deg,rgba(6,16,31,.96) 0%,rgba(6,16,31,.80) 48%,rgba(6,16,31,.60) 100%),
    repeating-linear-gradient(90deg,rgba(120,200,255,.07) 0 1px,transparent 1px 92px);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.crumb{display:flex;align-items:center;gap:9px;font-size:13px;color:var(--muted);margin-bottom:20px;}
.crumb a:hover{color:var(--mint);}
.crumb span.sep{opacity:.5;}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:52px;align-items:end;}
.page-hero h1{
  font-size:clamp(34px,5vw,60px);font-weight:800;margin:18px 0 0;letter-spacing:.005em;
}
.page-hero h1 em{
  font-style:normal;
  background:linear-gradient(96deg,var(--primary),var(--mint));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{margin-top:20px;font-size:17px;color:var(--muted);max-width:640px;line-height:1.85;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-panel{
  border-radius:var(--radius-lg);border:1px solid var(--line);
  background:var(--panel);backdrop-filter:blur(14px);
  padding:26px;box-shadow:var(--shadow-lg);
}
.hero-panel h3{font-size:15px;font-weight:600;color:var(--muted);letter-spacing:.06em;}
.hero-panel h3 i{color:var(--mint);margin-right:7px;}
.kv-list{margin-top:18px;display:grid;gap:13px;}
.kv-list li{display:flex;align-items:center;justify-content:space-between;gap:14px;font-size:14.5px;}
.kv-list li b{font-family:var(--mono);font-variant-numeric:tabular-nums;color:var(--mint);font-weight:600;}
.kv-list li span{color:var(--muted);}
.hero-stats{
  margin-top:26px;padding-top:20px;border-top:1px dashed var(--line);
  display:grid;grid-template-columns:repeat(3,1fr);gap:14px;text-align:left;
}
.hero-stats .st b{display:block;font-family:var(--mono);font-size:22px;color:var(--text);font-variant-numeric:tabular-nums;}
.hero-stats .st span{font-size:12.5px;color:var(--muted);}

/* ---------- Section base ---------- */
.section{padding:var(--gutter) 0;}
.section.tight{padding:66px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{font-size:clamp(26px,3vw,38px);}
.section-head p{margin-top:16px;color:var(--muted);font-size:16px;}
.section-head .eyebrow{margin-bottom:16px;}

/* ---------- Layout: sidebar + content ---------- */
.split{display:grid;grid-template-columns:300px 1fr;gap:48px;align-items:start;}
.side-card{
  position:sticky;top:96px;
  border-radius:var(--radius-lg);border:1px solid var(--line);
  background:var(--panel);backdrop-filter:blur(14px);
  padding:24px;box-shadow:var(--shadow-md);
}
.side-card h4{font-size:13px;letter-spacing:.12em;color:var(--muted);font-weight:600;}
.side-nav{margin-top:16px;display:grid;gap:4px;}
.side-nav a{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:10px;font-size:14.5px;color:var(--muted);
  border-left:2px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.side-nav a i{font-size:11px;color:var(--line-strong);}
.side-nav a:hover{background:rgba(120,200,255,.07);color:var(--text);}
.side-nav a.active{background:rgba(47,124,255,.14);color:var(--text);border-left-color:var(--mint);}
.side-nav a.active i{color:var(--mint);}
.side-block{margin-top:24px;padding-top:22px;border-top:1px dashed var(--line);}
.side-block h4{font-size:13px;letter-spacing:.12em;}
.filter-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 13px;border-radius:999px;font-size:13px;
  border:1px solid var(--line);background:rgba(18,32,54,.6);color:var(--muted);
  transition:all .2s ease;
}
.tag:hover{border-color:var(--line-strong);color:var(--text);}
.tag.is-active{background:rgba(43,232,197,.14);border-color:rgba(43,232,197,.4);color:var(--mint);font-weight:600;}

/* ---------- Prose blocks ---------- */
.lead-block{
  border-radius:var(--radius-lg);border:1px solid var(--line);
  background:linear-gradient(140deg,rgba(18,32,54,.72),rgba(11,21,38,.55));
  padding:34px;box-shadow:var(--shadow-md);
}
.lead-block h2{font-size:clamp(22px,2.4vw,30px);}
.lead-block p{margin-top:18px;color:var(--muted);font-size:16.5px;line-height:1.9;}
.lead-block p strong{color:var(--text);font-weight:600;}
.feature-strip{
  margin-top:26px;display:grid;grid-template-columns:1.35fr 1fr;gap:22px;
}
.strip-item{
  border-radius:var(--radius-md);border:1px solid var(--line);
  padding:22px;background:rgba(16,30,51,.6);
}
.strip-item h3{font-size:17px;display:flex;align-items:center;gap:10px;}
.strip-item h3 i{color:var(--mint);font-size:14px;}
.strip-item p{margin-top:12px;font-size:14.5px;color:var(--muted);line-height:1.85;}
.strip-item .metric{margin-top:16px;display:flex;gap:18px;flex-wrap:wrap;}
.strip-item .metric b{font-family:var(--mono);font-size:20px;color:var(--amber);}
.strip-item .metric span{font-size:12.5px;color:var(--muted);}

/* ---------- Cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:34px;}
.card{
  position:relative;overflow:hidden;
  border-radius:var(--radius-lg);border:1px solid var(--line);
  background:rgba(16,30,51,.62);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-lg);}
.card:focus-within{border-color:var(--amber);}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(140deg,#12233d,#0a1729);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;opacity:.92;}
.card:hover .card-media img{transform:scale(1.06);}
.card-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,16,31,0) 40%,rgba(6,16,31,.78) 100%);
}
.badge{
  position:absolute;top:14px;left:14px;z-index:2;
  padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600;
  background:rgba(47,124,255,.9);color:#04101D;
}
.badge.badge-mint{background:rgba(43,232,197,.92);}
.badge.badge-amber{background:rgba(255,209,102,.92);}
.card-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-body h3{font-size:18.5px;line-height:1.4;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-body p{font-size:14.5px;color:var(--muted);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  padding-top:16px;border-top:1px dashed var(--line);
  font-size:13px;color:var(--muted);
}
.card-meta .go{color:var(--mint);font-weight:600;display:inline-flex;align-items:center;gap:7px;}
.card-meta .go i{transition:transform .24s ease;}
.card:hover .card-meta .go i{transform:translateX(4px);}

/* ---------- Scenarios ---------- */
.scene-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:24px;}
.scene{
  border-radius:var(--radius-lg);border:1px solid var(--line);
  padding:26px;background:rgba(16,30,51,.55);
  transition:border-color .24s ease,transform .24s ease,background .24s ease;
}
.scene:hover{border-color:var(--line-strong);transform:translateY(-4px);background:rgba(20,38,64,.7);}
.scene i{font-size:20px;color:var(--primary);}
.scene h3{margin-top:16px;font-size:18px;}
.scene p{margin-top:12px;font-size:14.5px;color:var(--muted);line-height:1.85;}
.scene ul{margin-top:16px;display:grid;gap:9px;}
.scene ul li{font-size:14px;color:var(--muted);display:flex;gap:9px;align-items:flex-start;}
.scene ul li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--mint);margin-top:9px;flex-shrink:0;}

/* ---------- Timeline ---------- */
.timeline{margin-top:38px;position:relative;padding-left:30px;}
.timeline::before{
  content:"";position:absolute;left:8px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,var(--primary),rgba(43,232,197,.35),transparent);
}
.tl-item{position:relative;padding:0 0 30px 22px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-30px;top:6px;width:18px;height:18px;border-radius:50%;
  background:var(--bg-900);border:2px solid var(--primary);
  box-shadow:0 0 0 4px rgba(47,124,255,.14);
}
.tl-item h3{font-size:17.5px;display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.tl-item h3 em{
  font-style:normal;font-family:var(--mono);font-size:12.5px;color:var(--amber);
  border:1px solid rgba(255,209,102,.35);border-radius:999px;padding:2px 9px;
}
.tl-item p{margin-top:10px;font-size:14.5px;color:var(--muted);line-height:1.85;}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:34px;}
.faq-item{
  border-radius:var(--radius-md);border:1px solid var(--line);
  background:rgba(16,30,51,.6);overflow:hidden;
  transition:border-color .24s ease,background .24s ease;
}
.faq-item.open{border-color:rgba(43,232,197,.38);background:rgba(20,40,66,.72);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:19px 22px;text-align:left;font-size:15.5px;font-weight:600;color:var(--text);
}
.faq-q .plus{
  flex-shrink:0;width:26px;height:26px;border-radius:8px;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--muted);font-size:12px;
  transition:transform .28s ease,color .24s ease,border-color .24s ease;
}
.faq-item.open .faq-q .plus{transform:rotate(135deg);color:var(--mint);border-color:rgba(43,232,197,.45);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s ease;}
.faq-item.open .faq-a{max-height:320px;}
.faq-a-inner{
  padding:0 22px 20px 22px;font-size:14.5px;color:var(--muted);line-height:1.88;
  border-left:2px solid var(--mint);margin-left:22px;padding-left:16px;
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--radius-lg);border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(47,124,255,.20),rgba(43,232,197,.10)),rgba(11,21,38,.85);
  padding:52px;box-shadow:var(--shadow-lg);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;opacity:.16;
}
.cta-band .inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr 1fr;gap:44px;align-items:center;}
.cta-band h2{font-size:clamp(24px,2.8vw,34px);}
.cta-band p{margin-top:16px;color:#B9C8DE;font-size:15.5px;line-height:1.9;}
.subscribe-form{display:flex;gap:10px;flex-wrap:wrap;margin-top:6px;}
.subscribe-form input{
  flex:1;min-width:200px;height:48px;padding:0 18px;border-radius:999px;
  background:rgba(6,16,31,.7);border:1px solid var(--line);outline:none;
  font-size:14.5px;transition:border-color .22s ease,box-shadow .22s ease;
}
.subscribe-form input::placeholder{color:#6C7F9B;}
.subscribe-form input:focus{border-color:var(--line-strong);box-shadow:0 0 0 3px rgba(47,124,255,.18);}
.form-note{margin-top:12px;font-size:12.5px;color:var(--muted);}
.form-msg{margin-top:10px;font-size:13.5px;color:var(--mint);display:none;}
.form-msg.show{display:block;}

/* ---------- Footer ---------- */
.site-footer{
  margin-top:20px;border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(8,16,30,.6),rgba(4,9,18,.94));
  padding:72px 0 26px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .logo{margin-bottom:18px;}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.9;max-width:340px;}
.footer-col h4{font-size:13.5px;letter-spacing:.1em;color:var(--text);margin-bottom:16px;}
.footer-col a{display:block;font-size:14px;color:var(--muted);padding:6px 0;}
.footer-col a:hover{color:var(--mint);}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--muted);padding:6px 0;}
.footer-contact li i{color:var(--primary);margin-top:5px;font-size:12px;}
.footer-bottom{
  margin-top:52px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}
.footer-bottom a{color:var(--muted);}
.footer-bottom a:hover{color:var(--mint);}

/* ---------- Drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;
  background:rgba(5,11,21,.96);backdrop-filter:blur(18px);
  display:flex;flex-direction:column;padding:26px;
  transform:translateY(-100%);opacity:0;pointer-events:none;
  transition:transform .34s ease,opacity .34s ease;
}
.drawer.open{transform:translateY(0);opacity:1;pointer-events:auto;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:34px;}
.drawer nav{display:grid;gap:6px;}
.drawer nav a{
  font-size:20px;font-weight:600;padding:16px 14px;border-radius:14px;
  border:1px solid transparent;color:var(--text);
}
.drawer nav a.active{background:rgba(47,124,255,.16);border-color:var(--line);color:var(--mint);}
.drawer .drawer-cta{margin-top:auto;display:grid;gap:12px;}

/* ---------- Responsive ---------- */
@media (max-width:1280px){
  :root{--gutter:80px;}
  .nav-links a{padding:9px 11px;font-size:14px;}
  .command-search{min-width:200px;}
}
@media (max-width:1080px){
  .split{grid-template-columns:1fr;gap:34px;}
  .side-card{position:static;}
  .hero-grid{grid-template-columns:1fr;gap:34px;align-items:start;}
  .cta-band .inner{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:960px){
  :root{--gutter:64px;}
  .nav-links,.command-search,.nav-right .btn,.nav-right .icon-btn:not(.nav-toggle){display:none;}
  .nav-toggle{display:grid;}
  .scene-grid{grid-template-columns:1fr 1fr;}
  .scene-grid .scene:first-child{grid-column:span 2;}
}
@media (max-width:768px){
  :root{--gutter:52px;}
  .container{padding:0 20px;}
  .card-grid{grid-template-columns:1fr;}
  .faq-grid{grid-template-columns:1fr;}
  .feature-strip{grid-template-columns:1fr;}
  .cta-band{padding:34px 24px;}
  .page-hero{padding:52px 0 46px;}
  .footer-grid{grid-template-columns:1fr;}
  .hero-stats{grid-template-columns:repeat(3,1fr);gap:10px;}
  .hero-stats .st b{font-size:18px;}
  .scene-grid{grid-template-columns:1fr;}
  .scene-grid .scene:first-child{grid-column:span 1;}
  .lead-block{padding:24px;}
  .timeline{padding-left:24px;}
}
@media (max-width:520px){
  body{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
  .subscribe-form input{min-width:100%;}
  .hero-stats{grid-template-columns:1fr 1fr;}
  .card-body{padding:18px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:420px){
  .logo-text{font-size:15px;}
  .logo-text span{letter-spacing:.14em;}
  .kv-list li{font-size:13.5px;}
}

/* roulang page: category2 */
/* ============ 设计变量 ============ */
:root{
  --bg-900:#06101F;
  --bg-800:#0B1526;
  --panel:rgba(18,32,54,.62);
  --panel-solid:#0E1B2E;
  --line:rgba(120,200,255,.14);
  --line-strong:rgba(120,200,255,.34);
  --primary:#2F7CFF;
  --teal:#2BE8C5;
  --amber:#FFD166;
  --text:#E8F0FF;
  --muted:#9FB0C9;
  --danger:#FF6B6B;
  --radius-lg:18px;
  --radius-sm:12px;
  --shadow-lg:0 24px 60px rgba(0,0,0,.35);
  --shadow-btn:0 0 0 1px rgba(47,124,255,.35), 0 12px 40px rgba(47,124,255,.25);
  --inner-light:inset 0 1px 0 rgba(255,255,255,.08);
  --step:8px;
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"HarmonyOS Sans","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg-900);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(900px 480px at 10% -10%, rgba(47,124,255,.20), transparent 62%),
    radial-gradient(760px 420px at 94% 2%, rgba(43,232,197,.12), transparent 60%),
    linear-gradient(rgba(120,200,255,.05) 1px, transparent 1px) 0 0/64px 64px,
    linear-gradient(90deg, rgba(120,200,255,.05) 1px, transparent 1px) 0 0/64px 64px;
}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:.2px;}
h1{font-size:clamp(34px,5vw,64px);font-weight:800;}
h2{font-size:clamp(26px,3vw,40px);}
h3{font-size:clamp(20px,2vw,24px);}
p{margin:0;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease;}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:6px;}
::selection{background:rgba(43,232,197,.3);}

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:99;
  background:var(--teal);color:#04121F;padding:10px 16px;border-radius:0 0 12px 0;
}
.skip-link:focus{left:0;}

/* ============ 容器 ============ */
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.container.wide{max-width:1400px;}
main,header,footer{position:relative;z-index:1;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:13px 26px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.3px;
  border:1px solid transparent;background:none;
  transition:transform .22s ease, box-shadow .22s ease, filter .22s ease, border-color .22s ease, background .22s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(120deg,#2F7CFF 0%,#2BE8C5 100%);
  color:#03101F;
  box-shadow:var(--shadow-btn);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(47,124,255,.5),0 18px 46px rgba(47,124,255,.34);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:rgba(18,32,54,.6);
  border-color:var(--line);
  color:var(--text);
  box-shadow:var(--inner-light);
}
.btn-ghost:hover{border-color:var(--line-strong);background:rgba(24,44,74,.85);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{min-height:40px;padding:9px 18px;font-size:14px;}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,13,24,.72);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:24px;height:70px;}
.logo{display:inline-flex;align-items:center;gap:12px;flex-shrink:0;}
.logo-mark{
  width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(47,124,255,.9),rgba(43,232,197,.85));
  color:#04121F;font-size:16px;
  box-shadow:0 0 0 1px rgba(47,124,255,.4),0 10px 26px rgba(47,124,255,.28);
}
.logo-text{display:flex;flex-direction:column;font-size:17px;font-weight:700;line-height:1.15;letter-spacing:.2px;}
.logo-text span{font-size:9px;font-weight:600;letter-spacing:2.4px;color:var(--teal);}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px;}
.nav-links a{
  padding:9px 14px;border-radius:10px;font-size:14.5px;font-weight:500;color:var(--muted);
  transition:color .2s ease,background .2s ease;
}
.nav-links a:hover{color:var(--text);background:rgba(120,200,255,.08);}
.nav-links a.active{color:var(--teal);background:rgba(43,232,197,.10);}
.nav-right{display:flex;align-items:center;gap:10px;margin-left:auto;}
.command-search{
  display:flex;align-items:center;gap:10px;
  height:42px;padding:0 12px 0 14px;min-width:250px;
  border-radius:999px;border:1px solid var(--line);
  background:rgba(12,24,42,.75);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.command-search:focus-within{border-color:rgba(43,232,197,.55);box-shadow:0 0 0 3px rgba(43,232,197,.14);}
.command-search i{color:var(--muted);font-size:13px;}
.command-search input{
  flex:1;border:none;background:none;outline:none;font-size:14px;min-width:60px;
}
.command-search input::placeholder{color:rgba(159,176,201,.75);}
.kbd{
  font-size:11px;color:var(--muted);border:1px solid var(--line);
  border-radius:6px;padding:2px 6px;background:rgba(120,200,255,.06);
}
.icon-btn{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  border:1px solid var(--line);background:rgba(12,24,42,.7);color:var(--muted);
  transition:.2s ease;
}
.icon-btn:hover{color:var(--teal);border-color:var(--line-strong);background:rgba(24,44,74,.9);}
.nav-toggle{display:none;}

/* ============ Hero ============ */
.hero{padding:72px 0 64px;position:relative;overflow:hidden;}
.hero::after{
  content:"";position:absolute;left:-10%;right:-10%;bottom:-40px;height:220px;
  background:radial-gradient(closest-side,rgba(47,124,255,.16),transparent 70%);
  pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;position:relative;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;
  border:1px solid rgba(43,232,197,.34);
  background:rgba(43,232,197,.08);
  color:var(--teal);font-size:13px;font-weight:600;letter-spacing:.6px;
}
.hero h1{margin:20px 0 18px;}
.hero h1 em{font-style:normal;color:var(--teal);}
.hero-sub{color:var(--muted);font-size:17.5px;max-width:620px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 34px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:28px;padding-top:26px;border-top:1px solid var(--line);}
.hero-stats div{min-width:150px;}
.hero-stats strong{display:block;font-size:15px;font-weight:700;color:var(--text);}
.hero-stats span{font-size:13px;color:var(--muted);}
.hero-visual{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-lg);aspect-ratio:5/4;
}
.hero-visual img{width:100%;height:100%;object-fit:cover;opacity:.9;}
.hero-visual figcaption{
  position:absolute;left:16px;bottom:16px;right:16px;
  background:rgba(6,16,31,.78);border:1px solid var(--line);
  border-radius:var(--radius-sm);padding:12px 14px;font-size:13px;color:var(--muted);
  backdrop-filter:blur(8px);
}
.hero-visual figcaption b{color:var(--text);font-weight:600;}

/* ============ 通用板块 ============ */
.section{padding:76px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head p{color:var(--muted);margin-top:14px;}
.section-tag{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:2px;
  color:var(--amber);margin-bottom:14px;text-transform:uppercase;
}

/* ============ 指标分层（不对称） ============ */
.pillars{display:grid;grid-template-columns:6fr 6fr;gap:24px;align-items:stretch;}
.pillar-main{
  border-radius:var(--radius-lg);border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(24,44,74,.85),rgba(11,21,38,.9));
  padding:34px;display:flex;flex-direction:column;gap:16px;
  box-shadow:var(--shadow-lg);position:relative;overflow:hidden;
}
.pillar-main::after{
  content:"";position:absolute;right:-70px;top:-70px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(closest-side,rgba(43,232,197,.22),transparent);
}
.pillar-main h3{position:relative;}
.pillar-main p{color:var(--muted);position:relative;}
.pillar-list{display:flex;flex-direction:column;gap:16px;}
.pillar-item{
  border-radius:var(--radius-sm);border:1px solid var(--line);
  background:var(--panel);padding:20px 22px;
  display:grid;grid-template-columns:44px 1fr;gap:16px;align-items:start;
  transition:border-color .22s ease,transform .22s ease,background .22s ease;
  box-shadow:var(--inner-light);
}
.pillar-item:hover{border-color:var(--line-strong);transform:translateX(4px);background:rgba(24,44,74,.7);}
.pillar-item i{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:rgba(47,124,255,.14);color:var(--primary);font-size:17px;
}
.pillar-item h4{font-size:17px;margin-bottom:6px;}
.pillar-item p{color:var(--muted);font-size:14.5px;line-height:1.7;}

/* ============ 标签切换 ============ */
.tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px;}
.tab{
  border:1px solid var(--line);background:rgba(12,24,42,.7);
  color:var(--muted);font-size:14px;font-weight:600;
  padding:10px 20px;border-radius:999px;min-height:44px;
  transition:.22s ease;
}
.tab:hover{color:var(--text);border-color:var(--line-strong);}
.tab.is-active{
  color:#03101F;border-color:transparent;
  background:linear-gradient(120deg,#2F7CFF,#2BE8C5);
  box-shadow:0 10px 30px rgba(47,124,255,.28);
}

/* ============ 瀑布卡片 ============ */
.masonry{columns:3;column-gap:24px;}
.dcard{
  break-inside:avoid;
  margin:0 0 24px;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:var(--panel);
  overflow:hidden;
  box-shadow:var(--inner-light);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.dcard:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-lg);}
.dcard .cover{position:relative;overflow:hidden;background:linear-gradient(135deg,#12233C,#0A1728);}
.dcard .cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.dcard:hover .cover img{transform:scale(1.05);}
.dcard:nth-child(3n+1) .cover{height:190px;}
.dcard:nth-child(3n+2) .cover{height:236px;}
.dcard:nth-child(3n) .cover{height:158px;}
.dcard .body{padding:20px 22px 22px;}
.badge{
  display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:1px;
  padding:4px 10px;border-radius:999px;
  color:var(--teal);background:rgba(43,232,197,.10);
  border:1px solid rgba(43,232,197,.28);margin-bottom:12px;
}
.badge.amber{color:var(--amber);background:rgba(255,209,102,.10);border-color:rgba(255,209,102,.3);}
.dcard h3{font-size:18px;line-height:1.45;margin-bottom:10px;}
.dcard p{color:var(--muted);font-size:14.5px;line-height:1.75;}
.dcard .meta{
  display:flex;justify-content:space-between;align-items:center;gap:12px;
  margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);
  font-size:12.5px;color:rgba(159,176,201,.85);
}
.dcard .meta a{color:var(--teal);font-weight:600;}
.dcard .meta a:hover{color:var(--amber);}
.is-hidden{display:none !important;}

/* ============ 流程时间轴 ============ */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative;}
.flow::before{
  content:"";position:absolute;left:18px;right:18px;top:26px;height:2px;
  background:linear-gradient(90deg,rgba(47,124,255,.6),rgba(43,232,197,.5),rgba(255,209,102,.35));
  z-index:0;
}
.flow-step{
  position:relative;z-index:1;
  border-radius:var(--radius-sm);border:1px solid var(--line);
  background:rgba(11,21,38,.92);padding:26px 22px 24px;
  transition:border-color .22s ease,transform .22s ease;
}
.flow-step:hover{border-color:var(--line-strong);transform:translateY(-4px);}
.flow-step .num{
  width:44px;height:44px;border-radius:50%;display:grid;place-items:center;
  font-weight:800;font-size:15px;color:#03101F;
  background:linear-gradient(120deg,#2F7CFF,#2BE8C5);
  box-shadow:0 0 0 6px rgba(6,16,31,.9);
  margin-bottom:16px;
}
.flow-step h4{font-size:17px;margin-bottom:8px;}
.flow-step p{color:var(--muted);font-size:14.5px;line-height:1.7;}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;}
.faq-item{
  border-radius:var(--radius-sm);border:1px solid var(--line);
  background:var(--panel);overflow:hidden;
  transition:border-color .22s ease,background .22s ease;
  box-shadow:var(--inner-light);
}
.faq-item:hover{border-color:var(--line-strong);}
.faq-item.open{border-color:rgba(43,232,197,.4);background:rgba(18,34,56,.8);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;background:none;border:none;text-align:left;
  font-size:16px;font-weight:600;color:var(--text);min-height:56px;
}
.faq-q span{position:relative;padding-left:16px;}
.faq-q span::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;border-radius:3px;background:var(--teal);
  transition:height .25s ease;
}
.faq-item.open .faq-q span::before{height:18px;}
.faq-q i{color:var(--muted);font-size:14px;transition:transform .3s ease,color .3s ease;flex-shrink:0;}
.faq-item.open .faq-q i{transform:rotate(45deg);color:var(--teal);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;}
.faq-item.open .faq-a{max-height:280px;}
.faq-a p{padding:0 20px 20px;color:var(--muted);font-size:14.8px;}

/* ============ CTA ============ */
.cta-band{
  border-radius:var(--radius-lg);border:1px solid var(--line);
  background:
    linear-gradient(120deg,rgba(47,124,255,.20),rgba(43,232,197,.12)),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  padding:52px 44px;position:relative;overflow:hidden;
  box-shadow:var(--shadow-lg);
  display:grid;grid-template-columns:7fr 5fr;gap:36px;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;background:rgba(6,16,31,.72);
}
.cta-band > *{position:relative;z-index:1;}
.cta-band h2{font-size:clamp(24px,2.6vw,34px);margin-bottom:14px;}
.cta-band p{color:var(--muted);}
.subscribe{display:flex;gap:12px;flex-wrap:wrap;}
.subscribe input{
  flex:1;min-width:200px;height:48px;padding:0 18px;border-radius:999px;
  border:1px solid var(--line);background:rgba(8,17,31,.85);
  outline:none;font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.subscribe input::placeholder{color:rgba(159,176,201,.7);}
.subscribe input:focus{border-color:rgba(43,232,197,.6);box-shadow:0 0 0 3px rgba(43,232,197,.14);}
.form-note{font-size:12.5px;color:rgba(159,176,201,.8);margin-top:12px;}

/* ============ 面包屑 ============ */
.crumb{font-size:13px;color:var(--muted);margin-bottom:22px;}
.crumb a:hover{color:var(--teal);}
.crumb span{color:var(--teal);}

/* ============ 页脚 ============ */
.site-footer{
  border-top:1px solid var(--line);
  background:rgba(6,14,26,.9);
  padding:64px 0 30px;
  margin-top:20px;
}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand p{color:var(--muted);font-size:14.5px;margin-top:18px;max-width:340px;line-height:1.85;}
.footer-col h4{font-size:15px;margin-bottom:18px;color:var(--text);}
.footer-col a{display:block;color:var(--muted);font-size:14.5px;padding:6px 0;}
.footer-col a:hover{color:var(--teal);}
.footer-contact li{display:flex;gap:10px;color:var(--muted);font-size:14.5px;padding:6px 0;align-items:flex-start;}
.footer-contact i{margin-top:6px;color:var(--teal);font-size:13px;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(159,176,201,.8);
}
.footer-bottom a{color:var(--teal);}
.footer-bottom a:hover{color:var(--amber);}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .container{padding:0 22px;}
  .command-search{min-width:200px;}
}
@media (max-width:1024px){
  .nav-links a{padding:9px 10px;font-size:14px;}
  .command-search{min-width:170px;}
  .masonry{columns:2;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .cta-band{grid-template-columns:1fr;padding:40px 30px;}
  .pillars{grid-template-columns:1fr;}
  .flow{grid-template-columns:repeat(2,1fr);}
  .flow::before{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:960px){
  .nav-wrap{height:64px;gap:14px;}
  .nav-links{
    position:fixed;inset:64px 0 0 0;
    flex-direction:column;align-items:stretch;gap:4px;
    background:rgba(6,14,26,.97);
    backdrop-filter:blur(18px);
    padding:24px;margin:0;
    transform:translateX(100%);
    transition:transform .3s ease;
    overflow-y:auto;
    z-index:59;
  }
  .nav-links.open{transform:translateX(0);}
  .nav-links a{font-size:19px;font-weight:600;padding:16px 12px;border-bottom:1px solid var(--line);border-radius:0;}
  .command-search{display:none;}
  .nav-toggle{display:grid;}
  .hero{padding:48px 0 36px;}
  .section{padding:56px 0;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .masonry{columns:1;}
  .faq-grid{grid-template-columns:1fr;}
  .flow{grid-template-columns:1fr;}
  .hero-stats{gap:20px;}
  .hero-stats div{min-width:120px;}
  .cta-band{padding:34px 22px;}
  .logo-text{font-size:15.5px;}
}
@media (max-width:560px){
  .container{padding:0 18px;}
  .btn{width:100%;}
  .hero-actions{gap:10px;}
  .nav-right .btn-sm{display:none;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .tabs{gap:8px;}
  .tab{flex:1 1 auto;text-align:center;padding:10px 14px;}
}
@media (max-width:420px){
  h1{font-size:30px;}
  .logo-text span{letter-spacing:1.6px;}
  .hero-stats{flex-direction:column;gap:14px;}
}

/* roulang page: category3 */
:root{
  --bg-1:#06101F;
  --bg-2:#0B1526;
  --panel:rgba(18,32,54,.62);
  --panel-solid:#101E33;
  --line:rgba(120,200,255,.14);
  --line-strong:rgba(120,200,255,.32);
  --primary:#2F7CFF;
  --accent:#2BE8C5;
  --amber:#FFD166;
  --danger:#FF6B6B;
  --text:#E8F0FF;
  --muted:#9FB0C9;
  --radius-lg:18px;
  --radius-sm:12px;
  --shadow-lg:0 24px 60px rgba(0,0,0,.35);
  --shadow-in:0 1px 0 rgba(255,255,255,.08);
  --sp-1:8px;
  --sp-2:16px;
  --sp-3:24px;
  --sp-4:32px;
  --sp-5:48px;
  --sp-6:64px;
  --sp-7:96px;
  --font-sans:"HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg-1);
  background-image:
    radial-gradient(900px 520px at 12% -8%,rgba(47,124,255,.20),transparent 62%),
    radial-gradient(760px 480px at 92% 4%,rgba(43,232,197,.12),transparent 60%),
    linear-gradient(180deg,#06101F 0%,#081426 40%,#06101F 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .22s ease,border-color .22s ease,opacity .22s ease;}
a:hover{color:var(--accent);}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28;letter-spacing:.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:6px;}
::selection{background:rgba(43,232,197,.3);color:#fff;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.container.wide{max-width:1440px;}
main{display:block;}
section{position:relative;}

/* ---------- 通用组件 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  padding:7px 16px;border-radius:999px;
  background:rgba(47,124,255,.12);
  border:1px solid var(--line-strong);
  color:var(--accent);font-size:13.5px;font-weight:600;letter-spacing:.04em;
}
.eyebrow i{font-size:12px;}
.sec-title{font-size:clamp(26px,3vw,40px);}
.sec-sub{color:var(--muted);font-size:16.5px;max-width:660px;margin-top:14px;}
.sec-head{margin-bottom:44px;}
.sec-head.split{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;flex-wrap:wrap;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-height:46px;padding:0 24px;border-radius:999px;
  font-size:15.5px;font-weight:600;letter-spacing:.02em;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,filter .22s ease;
  border:1px solid transparent;white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(100deg,var(--primary),var(--accent));
  color:#04121F;
  box-shadow:0 0 0 1px rgba(47,124,255,.35),0 12px 40px rgba(47,124,255,.25);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(47,124,255,.5),0 18px 46px rgba(47,124,255,.36);color:#04121F;}
.btn-primary:active{transform:translateY(0);filter:brightness(.98);}
.btn-ghost{
  background:rgba(18,32,54,.6);
  border-color:var(--line);
  color:var(--text);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{border-color:var(--line-strong);color:var(--accent);transform:translateY(-2px);background:rgba(24,42,70,.72);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{min-height:38px;padding:0 17px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;
  font-size:12.5px;font-weight:600;letter-spacing:.03em;
  background:rgba(43,232,197,.1);border:1px solid rgba(43,232,197,.28);color:var(--accent);
}
.tag.amber{background:rgba(255,209,102,.1);border-color:rgba(255,209,102,.3);color:var(--amber);}
.tag.blue{background:rgba(47,124,255,.12);border-color:rgba(47,124,255,.34);color:#8FBBFF;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(7,13,24,.72);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:28px;min-height:70px;}
.logo{display:inline-flex;align-items:center;gap:12px;flex-shrink:0;}
.logo-mark{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  color:#04121F;font-size:16px;
  box-shadow:0 0 0 1px rgba(47,124,255,.4),0 10px 26px rgba(47,124,255,.3);
}
.logo-text{display:flex;flex-direction:column;font-weight:700;font-size:16.5px;line-height:1.15;letter-spacing:.01em;}
.logo-text span{font-size:10px;font-weight:600;letter-spacing:.22em;color:var(--muted);margin-top:3px;}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px;}
.nav-links a{
  position:relative;padding:9px 14px;border-radius:999px;
  font-size:15px;font-weight:500;color:#C6D5EC;
}
.nav-links a:hover{color:var(--text);background:rgba(47,124,255,.12);}
.nav-links a.active{color:var(--text);background:rgba(47,124,255,.16);box-shadow:inset 0 0 0 1px rgba(47,124,255,.32);}
.nav-links a.active::after{
  content:"";position:absolute;left:50%;bottom:-2px;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:var(--accent);
}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto;}
.command-search{
  display:flex;align-items:center;gap:10px;
  min-width:250px;height:42px;padding:0 12px 0 15px;
  border-radius:999px;
  background:rgba(18,32,54,.66);
  border:1px solid var(--line);
  transition:border-color .22s ease,box-shadow .22s ease,background .22s ease;
}
.command-search:focus-within{border-color:rgba(43,232,197,.5);box-shadow:0 0 0 3px rgba(43,232,197,.14);background:rgba(22,38,62,.8);}
.command-search i{color:var(--muted);font-size:13.5px;}
.command-search input{
  flex:1;min-width:0;background:none;border:0;outline:none;
  font-size:14.5px;color:var(--text);
}
.command-search input::placeholder{color:#7C8DA6;}
.kbd{
  font-size:11.5px;color:var(--muted);padding:2px 7px;border-radius:6px;
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  font-variant-numeric:tabular-nums;
}
.icon-btn{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:rgba(18,32,54,.6);border:1px solid var(--line);color:#C6D5EC;
  transition:border-color .22s ease,color .22s ease,transform .22s ease,background .22s ease;
}
.icon-btn:hover{border-color:var(--line-strong);color:var(--accent);transform:translateY(-2px);}
.nav-toggle{display:none;}

/* ---------- hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:84px 0 72px;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.30;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(6,16,31,.72) 0%,rgba(6,16,31,.9) 62%,var(--bg-1) 100%),
    repeating-linear-gradient(90deg,rgba(120,200,255,.055) 0 1px,transparent 1px 88px);
}
.page-hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:1.35fr .9fr;gap:56px;align-items:center;}
.hero-copy h1{
  font-size:clamp(34px,4.6vw,58px);
  line-height:1.16;letter-spacing:-.01em;margin:22px 0 20px;
}
.hero-copy h1 em{
  font-style:normal;
  background:linear-gradient(100deg,var(--accent),var(--amber));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-copy p.lead{color:#C3D3EA;font-size:17.5px;max-width:620px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:12px;margin-top:36px;
}
.hero-stat{
  padding:12px 18px;border-radius:var(--radius-sm);
  background:var(--panel);border:1px solid var(--line);
  backdrop-filter:blur(10px);
}
.hero-stat b{display:block;font-size:15px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;}
.hero-stat span{font-size:13px;color:var(--muted);}
.hero-visual{
  position:relative;border-radius:22px;overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-lg);
  aspect-ratio:4/3.2;
}
.hero-visual img{width:100%;height:100%;object-fit:cover;}
.hero-visual .visual-badge{
  position:absolute;left:18px;bottom:18px;right:18px;
  display:flex;align-items:center;gap:10px;
  padding:12px 16px;border-radius:14px;
  background:rgba(7,13,24,.78);border:1px solid var(--line);
  backdrop-filter:blur(12px);
  font-size:13.5px;color:#C6D5EC;
}
.hero-visual .visual-badge i{color:var(--amber);}

/* ---------- 时间轴 ---------- */
.section-pad{padding:var(--sp-7) 0;}
.timeline{position:relative;margin-top:12px;padding-left:8px;}
.timeline::before{
  content:"";position:absolute;left:23px;top:12px;bottom:12px;width:2px;
  background:linear-gradient(180deg,rgba(47,124,255,.7),rgba(43,232,197,.55),rgba(47,124,255,.05));
  border-radius:2px;
}
.tl-item{position:relative;padding:0 0 34px 74px;}
.tl-item:last-child{padding-bottom:0;}
.tl-node{
  position:absolute;left:0;top:4px;width:48px;height:48px;border-radius:14px;
  display:grid;place-items:center;
  background:rgba(12,24,42,.95);
  border:1px solid var(--line-strong);
  color:var(--accent);font-size:15px;font-weight:700;
  font-variant-numeric:tabular-nums;
  box-shadow:0 0 0 6px rgba(6,16,31,.9);
}
.tl-item:hover .tl-node{border-color:var(--accent);color:var(--amber);}
.tl-card{
  padding:22px 26px;border-radius:var(--radius-lg);
  background:var(--panel);border:1px solid var(--line);
  backdrop-filter:blur(10px);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.tl-item:hover .tl-card{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow-lg);}
.tl-card h3{font-size:20px;display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.tl-time{font-size:13px;color:var(--amber);font-weight:600;letter-spacing:.04em;}
.tl-card p{color:var(--muted);margin-top:10px;font-size:15.5px;}
.tl-points{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}

/* ---------- 大图卡 ---------- */
.feature-grid{
  display:grid;grid-template-columns:1.25fr 1fr;gap:24px;
  grid-template-rows:repeat(2,minmax(0,1fr));
}
.card{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  background:var(--panel);border:1px solid var(--line);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-lg);}
.card-media{position:relative;overflow:hidden;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.card:hover .card-media img{transform:scale(1.05);}
.card-xl{grid-row:span 2;}
.card-xl .card-media{flex:1;min-height:300px;}
.card-xl .card-body{padding:28px 30px 30px;}
.card-sm .card-media{aspect-ratio:16/9;}
.card-sm .card-body{padding:20px 22px 24px;}
.card-body{display:flex;flex-direction:column;gap:12px;}
.card-body h3{font-size:20px;}
.card-xl .card-body h3{font-size:clamp(22px,2.4vw,29px);}
.card-body p{color:var(--muted);font-size:15.5px;}
.card-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;font-size:13px;color:#8296B0;}
.card-meta i{font-size:12px;margin-right:5px;color:var(--accent);}
.card-badges{position:absolute;left:16px;top:16px;display:flex;gap:8px;z-index:2;}
.card-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,16,31,.05) 0%,rgba(6,16,31,.72) 100%);
}
.card-link{margin-top:4px;font-size:14.5px;font-weight:600;color:var(--accent);display:inline-flex;align-items:center;gap:8px;}
.card-link i{transition:transform .25s ease;}
.card:hover .card-link i{transform:translateX(4px);}

/* ---------- 维度网格 ---------- */
.dim-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.dim{
  padding:26px 24px;border-radius:var(--radius-lg);
  background:linear-gradient(160deg,rgba(18,32,54,.72),rgba(11,21,38,.6));
  border:1px solid var(--line);
  transition:border-color .25s ease,transform .25s ease;
}
.dim:hover{border-color:var(--line-strong);transform:translateY(-3px);}
.dim .dim-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:rgba(47,124,255,.14);border:1px solid rgba(47,124,255,.3);
  color:var(--accent);font-size:17px;margin-bottom:16px;
}
.dim h3{font-size:18.5px;}
.dim p{color:var(--muted);font-size:15px;margin-top:10px;}

/* ---------- 数据条 ---------- */
.strip{
  border-radius:22px;padding:36px 40px;
  background:linear-gradient(120deg,rgba(47,124,255,.16),rgba(43,232,197,.1));
  border:1px solid var(--line);
  display:grid;grid-template-columns:repeat(4,1fr);gap:26px;
}
.strip-item b{display:block;font-size:19px;color:var(--text);}
.strip-item span{display:block;color:var(--muted);font-size:14.5px;margin-top:6px;}
.strip-item i{color:var(--amber);margin-right:8px;}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;}
.faq-item{
  border-radius:var(--radius-sm);
  background:var(--panel);border:1px solid var(--line);
  overflow:hidden;position:relative;
  transition:border-color .25s ease,background .25s ease;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--accent);opacity:0;transition:opacity .25s ease;
}
.faq-item.open{border-color:var(--line-strong);background:rgba(22,38,62,.72);}
.faq-item.open::before{opacity:1;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;text-align:left;font-size:16.5px;font-weight:600;color:var(--text);
}
.faq-q:hover{color:var(--accent);}
.faq-q .plus{
  flex-shrink:0;width:26px;height:26px;border-radius:8px;display:grid;place-items:center;
  border:1px solid var(--line-strong);color:var(--accent);font-size:12px;
  transition:transform .3s ease,background .3s ease;
}
.faq-item.open .plus{transform:rotate(135deg);background:rgba(43,232,197,.16);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s ease;}
.faq-a p{padding:0 22px 22px;color:var(--muted);font-size:15.5px;}

/* ---------- CTA ---------- */
.cta-panel{
  position:relative;overflow:hidden;
  border-radius:24px;padding:56px 52px;
  background:linear-gradient(130deg,rgba(47,124,255,.2),rgba(43,232,197,.12) 55%,rgba(255,209,102,.1));
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-lg);
  display:grid;grid-template-columns:1.1fr 1fr;gap:44px;align-items:center;
}
.cta-panel::before{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(90deg,rgba(120,200,255,.07) 0 1px,transparent 1px 70px);
  pointer-events:none;
}
.cta-panel h2{font-size:clamp(24px,2.7vw,34px);position:relative;}
.cta-panel p{color:#C6D5EC;margin-top:14px;position:relative;}
.subscribe{position:relative;display:flex;flex-direction:column;gap:12px;}
.subscribe-form{display:flex;gap:12px;flex-wrap:wrap;}
.subscribe-form input{
  flex:1;min-width:200px;height:50px;padding:0 18px;border-radius:999px;
  background:rgba(7,13,24,.6);border:1px solid var(--line);outline:none;
  font-size:15px;transition:border-color .22s ease,box-shadow .22s ease;
}
.subscribe-form input::placeholder{color:#7C8DA6;}
.subscribe-form input:focus{border-color:rgba(43,232,197,.55);box-shadow:0 0 0 3px rgba(43,232,197,.14);}
.form-note{font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px;}
.form-note i{color:var(--accent);}
.form-note.error{color:var(--danger);}
.form-note.error i{color:var(--danger);}
.form-note.ok{color:var(--accent);}

/* ---------- footer ---------- */
.site-footer{
  margin-top:var(--sp-7);
  padding:64px 0 28px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(8,18,34,.4),rgba(6,16,31,.9));
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand p{color:var(--muted);font-size:15px;margin-top:18px;max-width:340px;}
.footer-col h4{font-size:15.5px;margin-bottom:18px;color:var(--text);letter-spacing:.03em;}
.footer-col a{display:block;color:var(--muted);font-size:14.8px;padding:6px 0;}
.footer-col a:hover{color:var(--accent);}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;color:var(--muted);font-size:14.8px;padding:6px 0;}
.footer-contact i{color:var(--accent);margin-top:6px;font-size:13px;}
.footer-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:#8296B0;
}
.footer-bottom a{color:var(--muted);}
.footer-bottom a:hover{color:var(--accent);}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .container{padding:0 22px;}
  .command-search{min-width:200px;}
}
@media (max-width:1100px){
  .nav-links a{padding:9px 11px;font-size:14.5px;}
  .command-search{min-width:170px;}
}
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .feature-grid{grid-template-columns:1fr;grid-template-rows:none;}
  .card-xl{grid-row:auto;}
  .dim-grid{grid-template-columns:repeat(2,1fr);}
  .strip{grid-template-columns:repeat(2,1fr);padding:30px 28px;}
  .cta-panel{grid-template-columns:1fr;padding:44px 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:960px){
  .nav-links{
    position:fixed;inset:70px 0 0 0;
    flex-direction:column;align-items:stretch;gap:4px;
    padding:26px 22px 120px;
    background:rgba(6,14,26,.97);
    backdrop-filter:blur(20px);
    transform:translateY(-12px);opacity:0;visibility:hidden;
    transition:opacity .28s ease,transform .28s ease,visibility .28s;
    overflow-y:auto;
  }
  .nav-links.open{opacity:1;visibility:visible;transform:translateY(0);}
  .nav-links a{font-size:19px;padding:16px 6px;border-bottom:1px solid var(--line);border-radius:0;}
  .nav-links a.active{background:none;box-shadow:none;}
  .nav-links a.active::after{left:6px;transform:none;bottom:8px;}
  .nav-toggle{display:grid;}
  .command-search{display:none;}
  .section-pad{padding:72px 0;}
  .faq-grid{grid-template-columns:1fr;}
}
@media (max-width:768px){
  body{font-size:16px;line-height:1.78;}
  .page-hero{padding:62px 0 54px;}
  .hero-copy p.lead{font-size:16.5px;}
  .section-pad{padding:52px 0;}
  .dim-grid{grid-template-columns:1fr;}
  .tl-item{padding-left:62px;}
  .tl-node{width:42px;height:42px;border-radius:12px;font-size:14px;}
  .timeline::before{left:20px;}
  .cta-panel{padding:36px 22px;border-radius:18px;}
  .strip{padding:26px 22px;gap:20px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .site-footer{padding:48px 0 24px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:560px){
  .container{padding:0 18px;}
  .hero-actions .btn{width:100%;}
  .hero-stats{gap:10px;}
  .hero-stat{flex:1 1 100%;}
  .logo-text{font-size:15px;}
  .logo-text span{letter-spacing:.16em;}
  .card-xl .card-body{padding:22px 20px 24px;}
  .card-sm .card-body{padding:18px 18px 20px;}
  .subscribe-form input{min-width:100%;}
  .subscribe-form .btn{width:100%;}
  .strip{grid-template-columns:1fr;}
}
@media (max-width:420px){
  .hero-copy h1{font-size:30px;}
  .sec-title{font-size:25px;}
  .tl-card{padding:18px 18px;}
  .faq-q{font-size:15.5px;padding:18px 18px;}
  .faq-a p{padding:0 18px 18px;}
  .btn{min-height:44px;font-size:15px;}
}