/* roulang page: index */
:root{
  --bg:#060B14;
  --panel:#0C1526;
  --panel-2:#111C33;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.18);
  --brand:#2AA9FF;
  --brand-press:#1B7FE0;
  --cyan:#4BE3C1;
  --amber:#FFB427;
  --live:#FF3B6B;
  --text:#EAF2FF;
  --text-2:#A9B8CF;
  --text-3:#6E8099;
  --r-card:16px;
  --r-panel:24px;
  --r-img:12px;
  --r-btn:10px;
  --glow:0 0 24px rgba(42,169,255,.45);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sec-pad:64px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media(min-width:768px){.container{padding-left:24px;padding-right:24px}}

/* ---------- 通用排版 ---------- */
h1{font-size:30px;line-height:1.22;font-weight:700;letter-spacing:-.01em}
h2{font-size:24px;line-height:1.3;font-weight:700;letter-spacing:-.01em}
h3{font-size:18px;line-height:1.5;font-weight:600}
@media(min-width:768px){
  h1{font-size:38px}
  h2{font-size:27px}
}
@media(min-width:1024px){
  h1{font-size:44px}
  h2{font-size:30px}
}
.hl{color:#7FCBFF}
.section{padding:var(--sec-pad) 0}
@media(min-width:1024px){.section{padding:96px 0}}
.sec-sub{color:var(--text-2);font-size:15px;line-height:1.75;margin-top:10px;max-width:640px}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px}
.num{font-variant-numeric:tabular-nums}

/* ---------- 顶部信息条 ---------- */
.topbar{background:#04080F;border-bottom:1px solid var(--line);font-size:12.5px;color:var(--text-3)}
.topbar-inner{height:40px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-domain{display:inline-flex;align-items:center;gap:8px;color:var(--text-2);letter-spacing:.02em;white-space:nowrap}
.topbar-dot{width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 8px rgba(75,227,193,.8);flex:0 0 auto}
.topbar-note{flex:1;text-align:center;color:var(--text-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand);text-decoration:underline;text-underline-offset:3px;transition:color .25s,text-underline-offset .25s;white-space:nowrap}
.topbar-link:hover{color:#8ED2FF;text-underline-offset:5px}
.topbar-link svg{transition:transform .25s var(--ease)}
.topbar-link:hover svg{transform:translateX(2px)}
@media(max-width:767px){.topbar-note{display:none}}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--bg);
  border-bottom:1px solid var(--line);
  transition:background .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.site-header.scrolled{
  background:rgba(6,11,20,.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line-strong);
  box-shadow:0 10px 28px rgba(0,0,0,.42);
}
.header-inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;letter-spacing:.01em;color:var(--text)}
.logo-mark{
  width:34px;height:34px;border-radius:11px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--brand),var(--brand-press));
  display:grid;place-items:center;
  box-shadow:0 0 18px rgba(42,169,255,.38),inset 0 1px 0 rgba(255,255,255,.35);
}
.logo-mark svg{width:18px;height:18px}
.nav-desktop{display:none;align-items:center;gap:4px}
@media(min-width:1024px){.nav-desktop{display:flex}}
.nav-link{
  position:relative;padding:9px 15px;border-radius:999px;font-size:14.5px;color:var(--text-2);
  transition:color .25s,background .25s;white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.is-active{color:#FFFFFF;background:rgba(42,169,255,.12)}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:2px;width:22px;height:2px;border-radius:2px;
  background:var(--brand);transform:translateX(-50%);
}
.header-actions{display:flex;align-items:center;gap:12px}
.menu-btn{
  display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  width:42px;height:42px;padding:0 10px;border-radius:12px;
  border:1px solid var(--line-strong);background:rgba(255,255,255,.03);
  transition:background .25s,border-color .25s;
}
.menu-btn span{display:block;height:2px;border-radius:2px;background:var(--text);transition:transform .3s var(--ease),opacity .3s}
.menu-btn:hover{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.3)}
.menu-btn.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-btn.is-open span:nth-child(2){opacity:0}
.menu-btn.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media(min-width:1024px){.menu-btn{display:none}}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0;z-index:55;
  background:rgba(4,8,15,.97);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  padding:110px 24px 40px;
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),visibility .3s;
}
.drawer.is-open{opacity:1;visibility:visible;transform:none}
.drawer-nav{display:flex;flex-direction:column;gap:6px}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:16px 18px;border-radius:14px;font-size:16px;font-weight:600;
  border:1px solid var(--line);background:rgba(12,21,38,.7);color:var(--text-2);
  opacity:0;transform:translateY(8px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),color .25s,border-color .25s;
}
.drawer.is-open .drawer-link{opacity:1;transform:none}
.drawer-link:hover{color:var(--text);border-color:rgba(42,169,255,.45)}
.drawer-link.is-active{color:#fff;border-color:rgba(42,169,255,.5);background:rgba(42,169,255,.12)}
.drawer-foot{margin-top:28px;display:flex;flex-direction:column;gap:14px}
.drawer-tip{font-size:13px;color:var(--text-3);line-height:1.7}
@media(min-width:1024px){.drawer{display:none}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  padding:13px 22px;border-radius:var(--r-btn);border:1px solid transparent;
  transition:transform .28s var(--ease),background .28s,box-shadow .28s,color .28s,border-color .28s;
}
.btn svg{width:16px;height:16px;flex:0 0 auto}
.btn-primary{background:var(--brand);color:#04131F}
.btn-primary:hover{background:#41B4FF;box-shadow:var(--glow);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 12px rgba(42,169,255,.25)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text)}
.btn-ghost:hover{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.32);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-amber{background:var(--amber);color:#2A1A00;border-radius:999px;padding:11px 20px;font-size:14px}
.btn-amber:hover{background:#FFC250;box-shadow:0 0 22px rgba(255,180,39,.42);transform:translateY(-1px)}
.btn-amber:active{transform:translateY(0);box-shadow:0 0 10px rgba(255,180,39,.2)}
.btn-sm{padding:11px 18px;font-size:14px}
.btn[disabled]{opacity:.5;box-shadow:none;transform:none;cursor:not-allowed}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);
  text-decoration:underline;text-underline-offset:3px;text-decoration-color:rgba(42,169,255,.4);
  transition:color .25s,text-underline-offset .25s;
}
.text-link:hover{color:#8ED2FF;text-underline-offset:5px}
.text-link svg{width:14px;height:14px;transition:transform .25s var(--ease)}
.text-link:hover svg{transform:translateX(3px)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:52px 0 60px;isolation:isolate}
@media(min-width:1024px){.hero{padding:84px 0 96px}}
.hero-bg{
  position:absolute;inset:0;z-index:-2;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;opacity:.10;
}
.hero-grid-lines{
  position:absolute;inset:0;z-index:-1;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:72px 72px;
  -webkit-mask-image:radial-gradient(ellipse 70% 60% at 25% 15%,#000 0%,transparent 72%);
  mask-image:radial-gradient(ellipse 70% 60% at 25% 15%,#000 0%,transparent 72%);
}
.hero-layout{display:grid;grid-template-columns:1fr;gap:36px;align-items:center}
@media(min-width:1024px){.hero-layout{grid-template-columns:7fr 5fr;gap:48px}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  border:1px solid rgba(42,169,255,.35);background:rgba(42,169,255,.10);
  color:#8ED2FF;font-size:12.5px;letter-spacing:.04em;
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 8px rgba(75,227,193,.9)}
.hero h1{margin-top:20px}
.hero-sub{margin-top:18px;font-size:16px;line-height:1.8;color:var(--text-2);max-width:560px}
.hero-cta{margin-top:28px;display:flex;flex-wrap:wrap;gap:14px}
.hero-facts{margin-top:30px;display:flex;flex-wrap:wrap;gap:10px}
.fact-chip{
  display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:10px;
  border:1px solid var(--line);background:rgba(12,21,38,.72);font-size:13px;color:var(--text-2);
}
.fact-chip svg{width:14px;height:14px;color:var(--cyan);flex:0 0 auto}

.hero-media{display:flex;flex-direction:column}
.hero-cover{
  position:relative;border-radius:var(--r-panel);overflow:hidden;
  border:1px solid var(--line-strong);background:var(--panel);aspect-ratio:16/9;
  box-shadow:0 24px 60px rgba(0,0,0,.45),inset 0 1px 0 rgba(255,255,255,.08);
}
.hero-cover img{width:100%;height:100%;object-fit:cover}
.hero-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(6,11,20,.92) 0%,rgba(6,11,20,.20) 46%,rgba(6,11,20,.40) 100%);
}
.hero-cover-cap{position:absolute;left:20px;right:20px;bottom:18px;z-index:2;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.pill-soon{
  display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:999px;
  background:rgba(255,180,39,.14);border:1px solid rgba(255,180,39,.45);color:#FFD79A;
  font-size:12.5px;font-weight:600;
}
.pill-soon i{width:7px;height:7px;border-radius:50%;background:var(--amber);animation:softPulse 2s infinite}
.pill-dim{font-size:12.5px;color:var(--text-2)}
@keyframes softPulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.82)}}

.countdown{
  margin-top:16px;padding:16px;border-radius:var(--r-panel);
  border:1px solid var(--line-strong);
  background:rgba(17,28,51,.55);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 0 40px rgba(42,169,255,.08);
  display:grid;grid-template-columns:repeat(4,1fr);gap:10px;
}
.cd-head{grid-column:1/-1;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12.5px;color:var(--text-3);margin-bottom:2px}
.cd-cell{text-align:center;border-radius:12px;background:rgba(6,11,20,.6);border:1px solid var(--line);padding:10px 4px}
.cd-num{display:block;font-size:24px;font-weight:700;line-height:1.2;color:var(--amber);font-variant-numeric:tabular-nums;letter-spacing:.02em}
@media(min-width:768px){.cd-num{font-size:30px}}
.cd-unit{display:block;font-size:12px;color:var(--text-3);margin-top:2px}

/* ---------- 预告流 ---------- */
.flow-list{border-bottom:1px solid var(--line)}
.flow-item{
  position:relative;display:grid;grid-template-columns:1fr;gap:16px;
  padding:24px 0;border-top:1px solid var(--line);
}
@media(min-width:768px){
  .flow-item{grid-template-columns:200px 1fr;gap:26px;padding:28px 0;align-items:start}
}
.flow-item.is-next{
  border:1px solid rgba(42,169,255,.45);border-radius:var(--r-card);
  padding:22px;background:rgba(17,28,51,.5);
  box-shadow:0 0 34px rgba(42,169,255,.14),inset 0 1px 0 rgba(255,255,255,.06);
  margin-bottom:6px;
}
@media(min-width:768px){.flow-item.is-next{padding:26px}}
.flow-thumb{
  position:relative;border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--line);background:var(--panel-2);aspect-ratio:16/9;
}
@media(min-width:768px){.flow-thumb{aspect-ratio:auto;height:112px;width:200px}}
.flow-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease)}
.flow-item:hover .flow-thumb img{transform:scale(1.03)}
.flow-thumb-tag{
  position:absolute;left:8px;top:8px;padding:3px 8px;border-radius:6px;font-size:11.5px;font-weight:600;
  background:rgba(255,180,39,.9);color:#2A1A00;
}
.flow-body{display:flex;flex-direction:column;gap:12px;min-width:0}
.flow-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:12.5px}
.time-chip{
  display:inline-flex;align-items:center;gap:6px;padding:5px 11px;border-radius:6px;
  background:rgba(42,169,255,.12);border:1px solid rgba(42,169,255,.3);color:#8ED2FF;font-weight:600;
}
.time-chip.is-live{background:rgba(255,59,107,.14);border-color:rgba(255,59,107,.45);color:#FFB7C8}
.time-chip.is-past{background:rgba(255,255,255,.05);border-color:var(--line);color:var(--text-3);font-weight:500}
.flow-title{font-size:18px;line-height:1.5;font-weight:600;transition:color .25s}
@media(min-width:768px){.flow-title{font-size:19px}}
.flow-item:hover .flow-title{color:var(--brand)}
.flow-points{display:flex;flex-direction:column;gap:7px}
.flow-points li{position:relative;padding-left:16px;font-size:14px;line-height:1.75;color:var(--text-2)}
.flow-points li::before{
  content:"";position:absolute;left:2px;top:.72em;width:5px;height:5px;border-radius:50%;
  background:var(--brand);opacity:.75;
}
.flow-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-top:2px}

/* ---------- 订阅 ---------- */
.subscribe-panel{
  display:grid;gap:24px;padding:26px;border-radius:var(--r-panel);
  border:1px solid var(--line-strong);
  background:linear-gradient(135deg,rgba(42,169,255,.12),rgba(17,28,51,.62) 58%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07);
}
@media(min-width:900px){
  .subscribe-panel{grid-template-columns:1.05fr 1fr;align-items:center;gap:36px;padding:38px 40px}
}
.subscribe-copy h2{font-size:22px}
@media(min-width:1024px){.subscribe-copy h2{font-size:26px}}
.subscribe-copy p{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--text-2);max-width:460px}
.subscribe-form{display:flex;flex-wrap:wrap;gap:12px}
.input{
  flex:1 1 220px;min-width:0;height:48px;padding:0 16px;border-radius:var(--r-btn);
  background:rgba(6,11,20,.72);border:1px solid var(--line-strong);color:var(--text);
  transition:border-color .25s,box-shadow .25s,background .25s;
}
.input::placeholder{color:var(--text-3)}
.input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(42,169,255,.18)}
.privacy-note{margin-top:12px;font-size:12.5px;line-height:1.7;color:var(--text-3)}
.form-msg{
  margin-top:12px;padding:10px 14px;border-left:3px solid var(--cyan);
  background:rgba(75,227,193,.08);color:#B7F4E5;font-size:13.5px;border-radius:0 8px 8px 0;
}
.form-msg.is-error{border-left-color:var(--live);background:rgba(255,59,107,.08);color:#FFB7C8}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:640px){.news-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.news-grid{grid-template-columns:repeat(3,1fr)}}
.news-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  transition:transform .3s var(--ease),border-color .3s,box-shadow .3s;
}
.news-card:hover{transform:translateY(-2px);border-color:rgba(42,169,255,.45);box-shadow:0 14px 34px rgba(0,0,0,.4)}
.news-card:hover .news-title{color:var(--brand)}
.news-cover{aspect-ratio:16/9;overflow:hidden;background:var(--panel-2)}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease)}
.news-card:hover .news-cover img{transform:scale(1.04)}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-badge{
  align-self:flex-start;font-size:12px;line-height:1;padding:6px 10px;border-radius:6px;
  background:rgba(75,227,193,.12);color:var(--cyan);border:1px solid rgba(75,227,193,.3);
}
.news-title{
  font-size:16.5px;font-weight:600;line-height:1.55;color:var(--text);transition:color .25s;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-desc{
  font-size:14px;line-height:1.7;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-time{margin-top:auto;padding-top:12px;border-top:1px solid var(--line);font-size:12.5px;color:var(--text-3)}
.news-empty{
  grid-column:1/-1;min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  border:1px dashed var(--line-strong);border-radius:var(--r-card);color:var(--text-3);font-size:14px;
}
.news-empty svg{width:32px;height:32px;opacity:.6}

/* ---------- 分类入口 ---------- */
.cat-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:900px){.cat-grid{grid-template-columns:repeat(2,1fr)}}
.cat-card{
  position:relative;display:block;overflow:hidden;border-radius:var(--r-card);
  border:1px solid var(--line);background:var(--panel);min-height:250px;
  transition:transform .3s var(--ease),border-color .3s,box-shadow .3s;
}
.cat-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.4;transition:transform .55s var(--ease),opacity .4s}
.cat-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(6,11,20,.96) 12%,rgba(6,11,20,.62) 100%);
}
.cat-card:hover{transform:translateY(-3px);border-color:rgba(42,169,255,.5);box-shadow:0 18px 40px rgba(0,0,0,.42)}
.cat-card:hover img{transform:scale(1.05);opacity:.55}
.cat-inner{position:relative;z-index:2;padding:28px;display:flex;flex-direction:column;gap:12px;height:100%;min-height:250px}
.cat-index{font-size:12.5px;letter-spacing:.16em;color:var(--brand);font-weight:600}
.cat-inner h3{font-size:20px;font-weight:700}
.cat-inner p{font-size:14px;line-height:1.78;color:var(--text-2);max-width:430px}
.cat-foot{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:14px;font-weight:600;color:var(--brand)}
.cat-foot svg{width:15px;height:15px;transition:transform .25s var(--ease)}
.cat-card:hover .cat-foot svg{transform:translateX(4px)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;text-align:left;font-size:16px;font-weight:600;color:var(--text);
  transition:color .25s;
}
.faq-q:hover{color:var(--brand)}
.faq-icon{position:relative;flex:0 0 auto;width:20px;height:20px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;
  transition:transform .28s var(--ease),opacity .28s;
}
.faq-icon::before{width:12px;height:2px;transform:translate(-50%,-50%)}
.faq-icon::after{width:2px;height:12px;transform:translate(-50%,-50%)}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-a p{padding:0 44px 20px 0;font-size:15px;line-height:1.8;color:var(--text-2)}

/* ---------- 底部 CTA ---------- */
.cta-band{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:linear-gradient(120deg,rgba(42,169,255,.14),rgba(6,11,20,.9) 62%);
}
.cta-inner{
  display:grid;gap:24px;padding:48px 0;
}
@media(min-width:900px){.cta-inner{grid-template-columns:1.2fr auto;align-items:center;gap:40px;padding:60px 0}}
.cta-inner h2{font-size:23px}
@media(min-width:1024px){.cta-inner h2{font-size:28px}}
.cta-inner p{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--text-2);max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 页脚 ---------- */
.site-footer{background:#04080F;padding-top:56px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.9fr 1fr 1fr 1.3fr;gap:36px}}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700}
.footer-desc{margin-top:14px;font-size:13.5px;line-height:1.8;color:var(--text-3);max-width:340px}
.footer-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:14px}
.footer-list{display:flex;flex-direction:column;gap:10px}
.footer-list a,.footer-list span{font-size:13.5px;color:var(--text-3);transition:color .25s,text-underline-offset .25s}
.footer-list a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px}
.footer-bottom{
  margin-top:44px;padding:20px 0;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:12.5px;color:var(--text-3);
}

/* ---------- 进场动效 ---------- */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .32s var(--ease),transform .32s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
    --bg:#060B14;
    --panel:#0C1526;
    --panel-2:#111C33;
    --brand:#2AA9FF;
    --brand-press:#1B7FE0;
    --cyan:#4BE3C1;
    --amber:#FFB427;
    --live:#FF3B6B;
    --text:#EAF2FF;
    --text-2:#A9B8CF;
    --text-3:#6E8099;
    --line:rgba(255,255,255,.08);
    --line-strong:rgba(255,255,255,.18);
    --r-card:16px;
    --r-panel:24px;
    --r-img:12px;
    --r-btn:10px;
    --ease:cubic-bezier(.2,.7,.3,1);
    --shadow-card:0 1px 0 rgba(255,255,255,.05) inset, 0 18px 40px -28px rgba(0,0,0,.9);
  }

  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  body::before{
    content:"";
    position:fixed;
    inset:0;
    pointer-events:none;
    z-index:0;
    background-image:linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
    background-size:64px 64px;
  }
  a{color:inherit;text-decoration:none;transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease)}
  img{display:block;max-width:100%;height:auto}
  button,input{font:inherit;color:inherit}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0}
  ul,ol{padding:0;list-style:none}
  :focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:1}
  @media(min-width:768px){.container{padding:0 24px}}

  /* ===== 顶部信息条 ===== */
  .topbar{
    position:relative;z-index:2;
    background:rgba(12,21,38,.92);
    border-bottom:1px solid var(--line);
    font-size:12.5px;
    color:var(--text-3);
  }
  .topbar-inner{min-height:38px;display:flex;align-items:center;justify-content:space-between;gap:16px}
  .topbar-tag{display:flex;align-items:center;gap:7px;color:var(--text-2)}
  .topbar-dot{width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px rgba(75,227,193,.7)}
  .topbar-note{display:none;color:var(--text-3)}
  @media(min-width:768px){.topbar-note{display:block}}
  .topbar-link{display:inline-flex;align-items:center;gap:5px;color:var(--text-2);border-bottom:1px solid rgba(42,169,255,.4);padding-bottom:1px}
  .topbar-link:hover{color:var(--brand);border-bottom-color:var(--brand)}

  /* ===== 主导航 ===== */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(6,11,20,.78);
    border-bottom:1px solid transparent;
    transition:background-color .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease),backdrop-filter .25s var(--ease);
  }
  .site-header.is-scrolled{
    background:rgba(6,11,20,.86);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-bottom-color:var(--line);
    box-shadow:0 10px 30px -22px rgba(0,0,0,.95);
  }
  .header-inner{min-height:68px;display:flex;align-items:center;justify-content:space-between;gap:18px}
  .logo{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;letter-spacing:.2px;white-space:nowrap}
  .logo-mark{
    width:32px;height:32px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
    background:linear-gradient(140deg,#5CC0FF,#2AA9FF 55%,#1B7FE0);
    box-shadow:0 0 0 1px rgba(42,169,255,.4),0 8px 20px -12px rgba(42,169,255,.9);
  }
  .logo-mark svg{width:19px;height:19px}
  .nav-desktop{display:none;align-items:center;gap:6px}
  @media(min-width:1024px){.nav-desktop{display:flex}}
  .nav-link{
    position:relative;
    display:inline-flex;align-items:center;
    padding:9px 14px;border-radius:999px;
    font-size:14.5px;font-weight:500;color:var(--text-2);
  }
  .nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
  .nav-link.is-active{color:var(--brand);background:rgba(42,169,255,.1)}
  .nav-link.is-active::after{
    content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;background:var(--brand);
  }
  .header-actions{display:flex;align-items:center;gap:10px}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 20px;border:1px solid transparent;border-radius:var(--r-btn);
    font-size:15px;font-weight:600;line-height:1;cursor:pointer;
    transition:background-color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
  }
  .btn-sm{height:36px;padding:0 15px;font-size:13.5px;border-radius:9px}
  .btn-primary{background:var(--brand);color:#04131F}
  .btn-primary:hover{background:#45B6FF;box-shadow:0 0 24px rgba(42,169,255,.45);transform:translateY(-1px)}
  .btn-primary:active{background:var(--brand-press);transform:none;box-shadow:0 0 12px rgba(42,169,255,.22)}
  .btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text)}
  .btn-ghost:hover{border-color:rgba(255,255,255,.3);background:rgba(255,255,255,.06);transform:translateY(-1px)}
  .btn-ghost:active{transform:none;background:rgba(255,255,255,.03)}
  .btn-amber{background:var(--amber);color:#231603}
  .btn-amber:hover{background:#FFC258;box-shadow:0 0 24px rgba(255,180,39,.35);transform:translateY(-1px)}
  .btn-amber:active{transform:none;box-shadow:0 0 10px rgba(255,180,39,.2)}
  .btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none;box-shadow:none;transform:none}

  .menu-btn{
    width:40px;height:40px;border-radius:10px;border:1px solid var(--line-strong);
    background:rgba(255,255,255,.03);display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;
    transition:border-color .2s var(--ease),background-color .2s var(--ease);
  }
  .menu-btn:hover{border-color:rgba(255,255,255,.32);background:rgba(255,255,255,.07)}
  .menu-btn span{display:block;width:17px;height:1.8px;border-radius:2px;background:var(--text);transition:transform .24s var(--ease),opacity .2s var(--ease)}
  .menu-btn.is-open span:nth-child(1){transform:translateY(6.8px) rotate(45deg)}
  .menu-btn.is-open span:nth-child(2){opacity:0}
  .menu-btn.is-open span:nth-child(3){transform:translateY(-6.8px) rotate(-45deg)}
  @media(min-width:1024px){.menu-btn{display:none}}

  /* ===== 移动抽屉 ===== */
  .drawer{
    position:fixed;inset:0;z-index:90;background:rgba(4,9,18,.7);
    backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
    opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s var(--ease);
  }
  .drawer.is-open{opacity:1;visibility:visible}
  .drawer-panel{
    position:absolute;top:0;right:0;width:min(86vw,350px);height:100%;overflow-y:auto;
    background:var(--panel);border-left:1px solid var(--line);padding:20px;
    transform:translateX(16px);transition:transform .28s var(--ease);
  }
  .drawer.is-open .drawer-panel{transform:none}
  .drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
  .drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line-strong);background:transparent;cursor:pointer;font-size:18px;line-height:1;color:var(--text-2)}
  .drawer-close:hover{color:var(--text);border-color:rgba(255,255,255,.3)}
  .drawer-nav a{
    display:block;padding:14px 4px;border-bottom:1px solid var(--line);
    font-size:16px;color:var(--text-2);
    opacity:0;transform:translateY(8px);
    transition:opacity .3s var(--ease),transform .3s var(--ease),color .2s var(--ease);
  }
  .drawer.is-open .drawer-nav a{opacity:1;transform:none}
  .drawer.is-open .drawer-nav a:nth-child(1){transition-delay:.04s}
  .drawer.is-open .drawer-nav a:nth-child(2){transition-delay:.08s}
  .drawer.is-open .drawer-nav a:nth-child(3){transition-delay:.12s}
  .drawer-nav a:hover,.drawer-nav a.is-active{color:var(--brand)}
  .drawer-foot{margin-top:22px}

  /* ===== 面包屑 ===== */
  .crumb-bar{padding:22px 0 0}
  .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3)}
  .breadcrumb a{color:var(--text-3)}
  .breadcrumb a:hover{color:var(--brand)}
  .breadcrumb .sep{color:rgba(255,255,255,.2)}
  .breadcrumb .crumb-current{color:var(--text-2);max-width:min(60vw,520px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

  /* ===== 文章头 ===== */
  .article-hero{position:relative;padding:26px 0 8px}
  .article-hero::after{
    content:"";position:absolute;left:-10%;top:-60px;width:60%;height:260px;z-index:0;
    background:radial-gradient(60% 100% at 20% 40%,rgba(42,169,255,.16),transparent 70%);
    pointer-events:none;filter:blur(6px);
  }
  .article-head{
    position:relative;z-index:1;
    background:var(--panel);border:1px solid var(--line);border-radius:var(--r-panel);
    padding:26px 22px 24px;box-shadow:var(--shadow-card);
    overflow:hidden;
  }
  @media(min-width:768px){.article-head{padding:36px 40px 32px}}
  .article-head::before{
    content:"";position:absolute;inset:0 0 auto 0;height:170px;
    background-image:url('/assets/images/backpic/back-2.webp');
    background-size:cover;background-position:center;
    opacity:.14;mask-image:linear-gradient(to bottom,rgba(0,0,0,1),transparent 92%);
    -webkit-mask-image:linear-gradient(to bottom,rgba(0,0,0,1),transparent 92%);
    pointer-events:none;
  }
  .article-head > *{position:relative;z-index:1}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    padding:5px 12px;border-radius:999px;border:1px solid rgba(42,169,255,.28);
    background:rgba(42,169,255,.1);color:#8FD3FF;font-size:12.5px;font-weight:600;
  }
  .article-title{
    margin-top:16px;
    font-size:30px;line-height:1.32;font-weight:700;letter-spacing:.2px;
    color:var(--text);
  }
  @media(min-width:768px){.article-title{font-size:40px;line-height:1.24}}
  .meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;margin-top:18px;font-size:12.5px;color:var(--text-3)}
  .meta-item{display:inline-flex;align-items:center;gap:7px}
  .meta-item svg{width:14px;height:14px;stroke:var(--text-3)}
  .meta-dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.2)}
  .head-cover{margin-top:24px;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);aspect-ratio:16/9;background:var(--panel-2)}
  .head-cover img{width:100%;height:100%;object-fit:cover}

  /* ===== 文章布局 ===== */
  .article-body{padding:34px 0 8px}
  .article-layout{display:grid;grid-template-columns:1fr;gap:32px;align-items:start}
  @media(min-width:1024px){.article-layout{grid-template-columns:minmax(0,800px) minmax(0,1fr);gap:40px}}
  .article-main{min-width:0}
  .panel{
    background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
    padding:24px 22px;box-shadow:var(--shadow-card);
  }
  @media(min-width:768px){.panel{padding:34px 36px}}

  .article-content{max-width:820px;font-size:16.5px;line-height:1.9;color:#D7E2F1;word-break:break-word}
  .article-content > *:first-child{margin-top:0}
  .article-content p{margin:0 0 1.2em}
  .article-content h2{
    font-size:25px;line-height:1.4;font-weight:700;color:var(--text);
    margin:1.9em 0 .85em;padding-left:14px;border-left:3px solid var(--brand);
  }
  .article-content h3{font-size:19px;line-height:1.5;font-weight:600;color:var(--text);margin:1.7em 0 .7em}
  .article-content h4{font-size:16.5px;font-weight:600;color:var(--text);margin:1.5em 0 .6em}
  .article-content ul{margin:0 0 1.25em}
  .article-content ul > li{position:relative;padding-left:20px;margin:0 0 .62em}
  .article-content ul > li::before{
    content:"";position:absolute;left:4px;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--brand);
  }
  .article-content ol{list-style:decimal;padding-left:1.5em;margin:0 0 1.25em}
  .article-content ol > li{margin:0 0 .62em;padding-left:4px}
  .article-content ol > li::marker{color:var(--brand)}
  .article-content blockquote{
    margin:1.5em 0;padding:16px 20px;background:var(--panel-2);
    border-left:3px solid var(--cyan);border-radius:0 12px 12px 0;color:var(--text-2);
  }
  .article-content blockquote p:last-child{margin-bottom:0}
  .article-content img{border-radius:var(--r-img);border:1px solid var(--line);margin:1.5em 0}
  .article-content a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
  .article-content a:hover{color:#7CCBFF;text-underline-offset:5px}
  .article-content strong{color:#FFFFFF;font-weight:600}
  .article-content hr{border:none;border-top:1px solid var(--line);margin:2em 0}
  .article-content code{background:var(--panel-2);padding:2px 6px;border-radius:6px;font-size:14px;color:var(--cyan)}
  .article-content table{
    width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;
    border:1px solid var(--line);border-radius:12px;overflow:hidden;
  }
  .article-content thead th{background:var(--panel-2);color:var(--text);text-align:left;font-weight:600;padding:12px 14px;border-bottom:1px solid var(--line)}
  .article-content tbody td{padding:12px 14px;border-bottom:1px solid var(--line);color:var(--text-2)}
  .article-content tbody tr:last-child td{border-bottom:none}

  .empty-state{
    min-height:260px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
    text-align:center;color:var(--text-2);
  }
  .empty-state svg{width:38px;height:38px;stroke:var(--text-3)}
  .empty-state .empty-title{font-size:18px;font-weight:600;color:var(--text)}

  /* ===== 文末回链 ===== */
  .article-foot{margin-top:26px;padding-top:22px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between}
  .tag-list{display:flex;flex-wrap:wrap;gap:9px}
  .tag{
    display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:999px;
    border:1px solid var(--line);background:rgba(255,255,255,.03);
    font-size:12.5px;color:var(--text-2);
  }
  .tag:hover{border-color:rgba(42,169,255,.45);color:var(--brand);background:rgba(42,169,255,.08)}
  .text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand)}
  .text-link:hover{text-decoration:underline;text-underline-offset:4px}
  .text-link svg{width:15px;height:15px;stroke:currentColor}

  /* ===== 侧栏 ===== */
  .article-side{display:none}
  @media(min-width:1024px){.article-side{display:block}}
  .side-inner{position:sticky;top:92px;display:grid;gap:20px}
  .side-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);padding:20px;box-shadow:var(--shadow-card)}
  .side-title{display:flex;align-items:center;gap:9px;font-size:14px;font-weight:600;color:var(--text);margin-bottom:14px}
  .side-title::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--brand)}
  .toc-list{display:grid;gap:2px;border-left:1px solid var(--line);margin-left:2px}
  .toc-list a{display:block;padding:6px 0 6px 14px;font-size:13.5px;color:var(--text-3);border-left:2px solid transparent;margin-left:-2px}
  .toc-list a:hover{color:var(--brand);border-left-color:rgba(42,169,255,.5)}
  .toc-list a.toc-sub{padding-left:26px;font-size:13px;color:var(--text-3);opacity:.85}
  .hot-list{display:grid;gap:12px}
  .hot-item{display:block;padding-bottom:12px;border-bottom:1px dashed var(--line)}
  .hot-item:last-child{border-bottom:none;padding-bottom:0}
  .hot-item .hot-name{font-size:14px;color:var(--text-2);line-height:1.6}
  .hot-item:hover .hot-name{color:var(--brand)}
  .hot-item .hot-note{display:block;margin-top:4px;font-size:12px;color:var(--text-3)}

  /* ===== 相关推荐 ===== */
  .section{padding:56px 0}
  @media(min-width:768px){.section{padding:72px 0}}
  .section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:26px}
  .section-title{font-size:24px;font-weight:700;letter-spacing:.2px;color:var(--text)}
  @media(min-width:768px){.section-title{font-size:28px}}
  .section-sub{margin-top:8px;font-size:14.5px;color:var(--text-3);max-width:640px}
  .card-grid{display:grid;grid-template-columns:1fr;gap:22px}
  @media(min-width:640px){.card-grid{grid-template-columns:repeat(2,1fr)}}
  @media(min-width:1024px){.card-grid{grid-template-columns:repeat(3,1fr)}}
  .rec-card{
    display:flex;flex-direction:column;height:100%;
    background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
    padding:22px;box-shadow:var(--shadow-card);
    transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
  }
  .rec-card:hover{transform:translateY(-3px);border-color:rgba(42,169,255,.34);box-shadow:0 1px 0 rgba(255,255,255,.06) inset,0 22px 46px -30px rgba(42,169,255,.6)}
  .rec-cover{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);aspect-ratio:16/10;margin-bottom:16px;background:var(--panel-2)}
  .rec-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
  .rec-card:hover .rec-cover img{transform:scale(1.03)}
  .rec-title{font-size:17px;font-weight:600;line-height:1.55;color:var(--text)}
  .rec-card:hover .rec-title{color:var(--brand)}
  .rec-desc{margin-top:10px;font-size:14px;line-height:1.75;color:var(--text-3)}
  .rec-meta{margin-top:auto;padding-top:16px;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--text-3)}
  .rec-meta .go{color:var(--brand);font-weight:600}

  /* ===== CTA ===== */
  .cta-band{
    position:relative;overflow:hidden;
    background:linear-gradient(120deg,#0C1526 0%,#111C33 58%,#0C1526 100%);
    border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  }
  .cta-band::before{
    content:"";position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-3.png');
    background-size:cover;background-position:center;opacity:.12;pointer-events:none;
  }
  .cta-inner{position:relative;z-index:1;padding:56px 0;display:grid;gap:26px;align-items:center}
  @media(min-width:1024px){.cta-inner{grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);padding:64px 0}}
  .cta-title{font-size:26px;font-weight:700;line-height:1.4;color:var(--text)}
  @media(min-width:768px){.cta-title{font-size:30px}}
  .cta-text{margin-top:12px;font-size:15px;line-height:1.8;color:var(--text-2);max-width:560px}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px}
  .countdown{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}
  .count-cell{
    background:rgba(17,28,51,.72);border:1px solid var(--line);border-radius:14px;
    padding:12px 6px;text-align:center;
    backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
    box-shadow:0 1px 0 rgba(255,255,255,.06) inset;
  }
  .count-num{font-size:22px;font-weight:700;color:var(--amber);font-variant-numeric:tabular-nums;line-height:1.2}
  .count-label{margin-top:4px;font-size:11.5px;color:var(--text-3)}

  /* ===== 页脚 ===== */
  .site-footer{background:#040810;border-top:1px solid var(--line);padding:52px 0 24px;position:relative;z-index:1}
  .footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
  @media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
  @media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:36px}}
  .footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--text)}
  .footer-brand:hover{color:var(--brand)}
  .footer-desc{margin-top:14px;font-size:13.5px;line-height:1.85;color:var(--text-3);max-width:340px}
  .footer-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:14px}
  .footer-list{display:grid;gap:10px;font-size:13.5px;color:var(--text-3)}
  .footer-list a{color:var(--text-3)}
  .footer-list a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
  .footer-bottom{
    margin-top:38px;padding-top:20px;border-top:1px solid var(--line);
    display:flex;flex-wrap:wrap;gap:10px 22px;justify-content:space-between;
    font-size:12.5px;color:var(--text-3);
  }

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

/* roulang page: category1 */
:root{
  --bg:#060B14;
  --panel:#0C1526;
  --overlay:#111C33;
  --primary:#2AA9FF;
  --primary-press:#1B7FE0;
  --accent:#4BE3C1;
  --amber:#FFB427;
  --live:#FF3B6B;
  --text:#EAF2FF;
  --text-2:#A9B8CF;
  --text-3:#6E8099;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.3);
  --r-card:16px;
  --r-panel:24px;
  --r-img:12px;
  --r-btn:10px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --shadow-soft:0 0 0 1px rgba(255,255,255,.05), inset 0 1px 0 rgba(255,255,255,.05), 0 18px 40px rgba(3,8,18,.55);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{background:none;border:0}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media(max-width:640px){.container{padding:0 20px}}

/* 顶部信息条 */
.topbar{background:#04090F;border-bottom:1px solid var(--line);font-size:12.5px;color:var(--text-3)}
.topbar-inner{display:flex;align-items:center;gap:24px;min-height:38px}
.topbar-domain{display:inline-flex;align-items:center;gap:7px;color:var(--text-2);white-space:nowrap}
.topbar-domain svg{width:13px;height:13px;color:var(--primary)}
.topbar-note{flex:1;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.topbar-link{display:inline-flex;align-items:center;gap:6px;color:var(--primary);border-bottom:1px solid transparent;transition:border-color .2s var(--ease)}
.topbar-link:hover{border-color:var(--primary)}
.topbar-link svg{width:12px;height:12px}
@media(max-width:767px){.topbar-note{display:none}.topbar-inner{gap:12px;justify-content:space-between}}

/* 主导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,11,20,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:background .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header.is-scrolled{background:rgba(6,11,20,.95);box-shadow:0 12px 30px rgba(0,0,0,.45)}
.header-inner{display:flex;align-items:center;gap:24px;min-height:70px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:18px;letter-spacing:.2px;white-space:nowrap}
.logo-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;flex:0 0 34px;
  background:linear-gradient(140deg,var(--primary),var(--accent));
  box-shadow:0 0 18px rgba(42,169,255,.35);
}
.logo-mark svg{width:20px;height:20px}
.nav-desktop{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  padding:9px 14px;border-radius:999px;color:var(--text-2);
  font-size:15px;font-weight:500;transition:.22s var(--ease);white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.06)}
.nav-link.is-active{color:var(--primary);background:rgba(42,169,255,.12);box-shadow:inset 0 0 0 1px rgba(42,169,255,.28)}
.header-actions{display:flex;align-items:center;gap:12px}
.menu-btn{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer;
}
.menu-btn span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:.24s var(--ease)}
.menu-btn.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-btn.is-open span:nth-child(2){opacity:0}
.menu-btn.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:var(--r-btn);
  font-weight:600;font-size:15px;padding:12px 22px;cursor:pointer;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
}
.btn-primary{background:var(--primary);color:#04131F;box-shadow:0 10px 26px rgba(42,169,255,.28)}
.btn-primary:hover{background:#4FB8FF;transform:translateY(-1px);box-shadow:0 0 24px rgba(42,169,255,.45)}
.btn-primary:active{transform:none;background:var(--primary-press);box-shadow:0 0 12px rgba(42,169,255,.28)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--line-strong);background:rgba(255,255,255,.06)}
.btn-ghost:active{transform:none;background:rgba(255,255,255,.03)}
.btn-amber{background:var(--amber);color:#241703;border-radius:999px;box-shadow:0 10px 24px rgba(255,180,39,.22)}
.btn-amber:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 0 24px rgba(255,180,39,.42)}
.btn-amber:active{transform:none;filter:brightness(.96);box-shadow:0 0 12px rgba(255,180,39,.24)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-lg{padding:14px 28px;font-size:16px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none}

/* 移动端抽屉 */
.mobile-drawer{
  position:fixed;inset:0;z-index:90;background:rgba(4,9,16,.97);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  padding:22px 22px 40px;display:flex;flex-direction:column;
  opacity:0;transform:translateY(-12px);pointer-events:none;transition:.28s var(--ease);
}
.mobile-drawer.is-open{opacity:1;transform:none;pointer-events:auto}
.drawer-top{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);color:var(--text-2);cursor:pointer;font-size:18px;line-height:1}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-top:22px}
.drawer-nav a{
  padding:14px 16px;border-radius:14px;font-size:17px;font-weight:600;color:var(--text-2);
  border:1px solid transparent;opacity:0;transform:translateY(10px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),background .2s var(--ease),color .2s var(--ease);
}
.mobile-drawer.is-open .drawer-nav a{opacity:1;transform:none}
.drawer-nav a:nth-child(1){transition-delay:.04s}
.drawer-nav a:nth-child(2){transition-delay:.08s}
.drawer-nav a:nth-child(3){transition-delay:.12s}
.drawer-nav a.is-active{color:var(--primary);background:rgba(42,169,255,.1);border-color:rgba(42,169,255,.26)}
.drawer-cta{margin-top:auto;display:flex;flex-direction:column;gap:12px}

/* 页头 */
.page-head{position:relative;overflow:hidden;border-bottom:1px solid var(--line);padding:60px 0 56px}
.page-head-bg{
  position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;opacity:.14;
}
.page-head-grid{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(circle at 26% 24%,#000,transparent 72%);
  mask-image:radial-gradient(circle at 26% 24%,#000,transparent 72%);
}
.page-head-arc{
  position:absolute;right:-140px;top:-180px;width:640px;height:640px;border-radius:50%;
  background:radial-gradient(circle,rgba(42,169,255,.22),transparent 62%);pointer-events:none;
}
.page-head-inner{position:relative;display:grid;grid-template-columns:minmax(0,1.32fr) minmax(0,.88fr);gap:48px;align-items:center}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:18px;flex-wrap:wrap}
.breadcrumb a{color:var(--text-3);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb span{color:var(--text-2)}
.crumb-sep{color:rgba(255,255,255,.2)}
.page-head h1{
  font-size:clamp(30px,4.3vw,46px);line-height:1.22;font-weight:800;letter-spacing:-.5px;
  background:linear-gradient(120deg,#FFFFFF 12%,#BFE3FF 78%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.page-head-lead{margin-top:18px;font-size:17px;line-height:1.8;color:var(--text-2);max-width:640px}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.chip{
  display:inline-flex;align-items:center;gap:7px;padding:7px 14px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.03);font-size:13px;color:var(--text-2);
}
.chip i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block}
.chip.is-amber i{background:var(--amber)}
.chip.is-live i{background:var(--live)}
.page-head-media{position:relative;border-radius:var(--r-panel);overflow:hidden;border:1px solid var(--line);aspect-ratio:4/3;box-shadow:var(--shadow-soft)}
.page-head-media img{width:100%;height:100%;object-fit:cover}
.page-head-media::after{content:"";position:absolute;inset:0;background:linear-gradient(205deg,rgba(42,169,255,.32),rgba(6,11,20,.78))}
.media-badge{
  position:absolute;left:18px;bottom:18px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;padding:9px 15px;border-radius:999px;
  background:rgba(6,11,20,.72);border:1px solid rgba(255,255,255,.14);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  font-size:13px;font-weight:600;color:var(--text);
}
.pulse-dot{width:8px;height:8px;border-radius:50%;background:var(--amber);position:relative}
.pulse-dot::after{content:"";position:absolute;inset:-4px;border-radius:50%;border:1px solid rgba(255,180,39,.6);animation:pulse 2s infinite}
@keyframes pulse{0%{transform:scale(.6);opacity:.9}70%{transform:scale(1.5);opacity:0}100%{opacity:0}}

/* 板块 */
.section{padding:72px 0}
.section-tight{padding:48px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px;flex-wrap:wrap}
.section-eyebrow{font-size:12.5px;letter-spacing:.2em;color:var(--primary);font-weight:600;text-transform:uppercase}
.section-head h2{font-size:clamp(23px,2.8vw,30px);line-height:1.35;font-weight:700;margin-top:8px}
.section-head p{color:var(--text-3);font-size:14px;max-width:520px;line-height:1.75;margin-top:10px}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:14px;font-weight:600;border-bottom:1px solid transparent;transition:.2s var(--ease)}
.link-more:hover{border-color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.link-more svg{width:14px;height:14px}

/* 时间轴刻度行 */
.rail{
  display:flex;flex-wrap:wrap;gap:26px 40px;padding:24px 26px;
  border:1px solid var(--line);border-radius:var(--r-card);background:var(--panel);
}
.rail-item{position:relative;padding-left:18px;min-width:150px}
.rail-item::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px rgba(42,169,255,.6)}
.rail-item strong{display:block;font-size:15px;font-weight:600;color:var(--text)}
.rail-item span{display:block;font-size:13px;color:var(--text-3);margin-top:2px}

/* 卡片网格 */
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.card{
  position:relative;display:flex;flex-direction:column;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--r-card);background:var(--panel);
  transition:transform .26s var(--ease),border-color .26s var(--ease),box-shadow .26s var(--ease);
}
.card:hover{transform:translateY(-2px);border-color:rgba(42,169,255,.35);box-shadow:0 18px 40px rgba(3,8,18,.55)}
.card-media{position:relative;overflow:hidden;aspect-ratio:16/10;background:#08101E}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .55s var(--ease)}
.card:hover .card-media img{transform:scale(1.03)}
.card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,11,20,0) 45%,rgba(6,11,20,.72))}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-index{font-size:12.5px;letter-spacing:.18em;font-weight:700;color:var(--primary)}
.card h3{font-size:20px;line-height:1.5;font-weight:700}
.card p{font-size:14px;line-height:1.75;color:var(--text-2)}
.card-tag{
  align-self:flex-start;margin-top:auto;display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;color:var(--text-3);border:1px solid var(--line);border-radius:6px;padding:5px 10px;
}
.card.is-wide{grid-column:span 2;flex-direction:row}
.card.is-wide .card-media{flex:0 0 46%;aspect-ratio:auto;min-height:280px}
.card.is-wide .card-body{padding:32px 34px;justify-content:center}
.card.is-wide h3{font-size:24px}
.card.is-wide p{font-size:15px}

/* 要点清单 */
.check-list{display:grid;gap:14px;grid-template-columns:repeat(2,minmax(0,1fr))}
.check-item{
  display:flex;gap:14px;padding:18px 20px;border:1px solid var(--line);
  border-radius:14px;background:rgba(12,21,38,.75);transition:border-color .22s var(--ease),background .22s var(--ease);
}
.check-item:hover{border-color:rgba(75,227,193,.3);background:rgba(17,28,51,.85)}
.check-item svg{width:20px;height:20px;flex:0 0 20px;color:var(--accent);margin-top:4px}
.check-item strong{display:block;font-size:15.5px;font-weight:600;margin-bottom:4px}
.check-item span{display:block;font-size:13.5px;line-height:1.7;color:var(--text-3)}

/* FAQ */
.faq-wrap{max-width:840px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 0;text-align:left;font-size:16px;font-weight:600;cursor:pointer;transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--primary)}
.faq-icon{
  flex:0 0 22px;width:22px;height:22px;position:relative;border-radius:6px;
  border:1px solid var(--line);transition:transform .24s var(--ease),border-color .24s var(--ease);
}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--text-2);border-radius:2px;transform:translate(-50%,-50%)}
.faq-icon::before{width:10px;height:2px}
.faq-icon::after{width:2px;height:10px;transition:opacity .24s var(--ease)}
.faq-item.is-open .faq-icon{transform:rotate(180deg);border-color:rgba(42,169,255,.45)}
.faq-item.is-open .faq-icon::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease)}
.faq-a p{padding-bottom:22px;font-size:15px;line-height:1.8;color:var(--text-2);max-width:720px}

/* CTA */
.cta-band{
  position:relative;overflow:hidden;border:1px solid rgba(42,169,255,.28);border-radius:var(--r-panel);
  background:linear-gradient(135deg,rgba(42,169,255,.14),rgba(12,21,38,.92) 62%);
  padding:44px;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:36px;align-items:center;
}
.cta-band h2{font-size:clamp(22px,2.6vw,28px);line-height:1.4;font-weight:700}
.cta-band p{margin-top:12px;color:var(--text-2);font-size:15px;line-height:1.8}
.subscribe-form{display:flex;gap:12px;flex-wrap:wrap}
.subscribe-form input{
  flex:1;min-width:200px;height:48px;border-radius:12px;border:1px solid var(--line);
  background:rgba(6,11,20,.82);padding:0 16px;font-size:15px;transition:.22s var(--ease);
}
.subscribe-form input::placeholder{color:var(--text-3)}
.subscribe-form input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(42,169,255,.18)}
.form-note{margin-top:12px;font-size:12.5px;color:var(--text-3);line-height:1.7}
.form-msg{margin-top:14px;font-size:13.5px;padding:10px 14px;border-left:3px solid var(--accent);background:rgba(75,227,193,.08);color:var(--text-2);border-radius:0 8px 8px 0;display:none}
.form-msg.is-error{border-left-color:var(--live);background:rgba(255,59,107,.08)}
.form-msg.is-show{display:block}

/* 页脚 */
.site-footer{border-top:1px solid var(--line);background:#04090F;padding:56px 0 0;margin-top:88px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:17px;margin-bottom:14px}
.footer-desc{font-size:14px;line-height:1.8;color:var(--text-3);max-width:320px}
.footer-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px}
.footer-list{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--text-3)}
.footer-list a{color:var(--text-3);transition:color .2s var(--ease)}
.footer-list a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  margin-top:46px;border-top:1px solid var(--line);padding:20px 0 30px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px;color:var(--text-3);
}

/* 进场动画 */
.reveal{opacity:0;transform:translateY(8px)}
.reveal.is-in{opacity:1;transform:none;transition:opacity .32s var(--ease),transform .32s var(--ease)}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}

@media(max-width:1024px){
  .page-head-inner{grid-template-columns:1fr;gap:34px}
  .page-head-media{order:-1;aspect-ratio:16/9}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
  .cta-band{grid-template-columns:1fr;padding:36px}
  .card.is-wide .card-media{flex:0 0 42%}
}
@media(max-width:767px){
  .nav-desktop{display:none}
  .menu-btn{display:flex}
  .header-actions .btn{display:none}
  .section{padding:54px 0}
  .section-tight{padding:36px 0}
  .card-grid{grid-template-columns:1fr}
  .card.is-wide{grid-column:auto;flex-direction:column}
  .card.is-wide .card-media{flex:none;aspect-ratio:16/10;min-height:0}
  .card.is-wide .card-body{padding:22px 24px 24px}
  .card.is-wide h3{font-size:20px}
  .check-list{grid-template-columns:1fr}
  .rail{gap:20px 26px;padding:20px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding-top:44px;margin-top:64px}
}
@media(max-width:520px){
  .page-head{padding:44px 0 42px}
  .page-head-lead{font-size:15.5px}
  .section-head{margin-bottom:26px}
  .cta-band{padding:26px 22px;border-radius:18px}
  .subscribe-form input{min-width:0;width:100%}
  .subscribe-form .btn{width:100%}
  .footer-bottom{flex-direction:column;gap:8px}
}

/* roulang page: category2 */
:root{
    --bg:#060B14;
    --panel:#0C1526;
    --panel-2:#111C33;
    --line:rgba(255,255,255,.08);
    --line-strong:rgba(255,255,255,.18);
    --text:#EAF2FF;
    --muted:#A9B8CF;
    --faint:#6E8099;
    --primary:#2AA9FF;
    --primary-press:#1B7FE0;
    --cyan:#4BE3C1;
    --amber:#FFB427;
    --live:#FF3B6B;
    --r-card:16px;
    --r-panel:24px;
    --r-img:12px;
    --r-btn:10px;
    --shadow-card:inset 0 1px 0 rgba(255,255,255,.05), 0 14px 36px rgba(0,0,0,.34);
    --shadow-soft:inset 0 1px 0 rgba(255,255,255,.04), 0 8px 22px rgba(0,0,0,.28);
    --ease:cubic-bezier(.2,.7,.3,1);
  }

  html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}

  body.page-body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
    font-size:16px;
    line-height:1.75;
    font-variant-numeric:tabular-nums;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }

  body.page-body::before{
    content:"";
    position:fixed;
    inset:0;
    z-index:0;
    pointer-events:none;
    background-image:
      linear-gradient(rgba(255,255,255,.032) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255,255,255,.032) 1px, transparent 1px);
    background-size:64px 64px;
    -webkit-mask-image:radial-gradient(circle at 50% 0%, #000 0%, transparent 76%);
    mask-image:radial-gradient(circle at 50% 0%, #000 0%, transparent 76%);
  }

  body.page-body img{display:block;max-width:100%;height:auto;}
  body.page-body a{color:inherit;text-decoration:none;}
  body.page-body button,
  body.page-body input{font:inherit;color:inherit;}
  body.page-body h1,
  body.page-body h2,
  body.page-body h3,
  body.page-body h4,
  body.page-body p{margin:0;}

  .container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding-left:20px;
    padding-right:20px;
    position:relative;
    z-index:1;
  }
  @media (min-width:1024px){
    .container{padding-left:24px;padding-right:24px;}
  }

  /* 顶部信息条 */
  .topbar{
    position:relative;
    z-index:61;
    background:#04080F;
    border-bottom:1px solid rgba(255,255,255,.06);
    font-size:12.5px;
    color:var(--muted);
  }
  .topbar-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    min-height:38px;
    padding-top:6px;
    padding-bottom:6px;
  }
  .topbar-domain{
    color:var(--faint);
    letter-spacing:.02em;
    white-space:nowrap;
  }
  .topbar-tip{display:none;}
  .topbar-action{
    display:inline-flex;
    align-items:center;
    gap:6px;
    color:var(--primary);
    font-weight:600;
    white-space:nowrap;
    transition:color .2s var(--ease);
  }
  .topbar-action:hover{color:#6FC6FF;text-decoration:underline;text-underline-offset:3px;}
  @media (min-width:768px){
    .topbar-tip{display:inline-block;color:var(--muted);}
  }

  /* 主导航 */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:rgba(6,11,20,.88);
    border-bottom:1px solid var(--line);
    transition:background .28s var(--ease), box-shadow .28s var(--ease), backdrop-filter .28s var(--ease);
  }
  .site-header.is-scrolled{
    background:rgba(6,11,20,.72);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
    box-shadow:0 12px 32px rgba(0,0,0,.38);
  }
  .header-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:20px;
    min-height:68px;
  }
  .logo{
    display:inline-flex;
    align-items:center;
    gap:10px;
    font-size:18px;
    font-weight:700;
    letter-spacing:.01em;
    color:var(--text);
    white-space:nowrap;
  }
  .logo-mark{
    width:34px;
    height:34px;
    border-radius:10px;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    background:linear-gradient(135deg,#2AA9FF 0%,#4BE3C1 100%);
    box-shadow:0 0 18px rgba(42,169,255,.35);
    flex:none;
  }
  .logo-mark svg{width:19px;height:19px;display:block;}

  .nav-desktop{display:none;align-items:center;gap:26px;}
  .nav-link{
    position:relative;
    font-size:15px;
    color:var(--muted);
    padding:6px 2px;
    transition:color .2s var(--ease);
    white-space:nowrap;
  }
  .nav-link:hover{color:var(--text);}
  .nav-link::after{
    content:"";
    position:absolute;
    left:0;right:0;bottom:-2px;
    height:2px;
    border-radius:2px;
    background:var(--primary);
    transform:scaleX(0);
    transform-origin:left;
    transition:transform .24s var(--ease);
  }
  .nav-link:hover::after{transform:scaleX(1);}
  .nav-link.is-active{color:var(--text);font-weight:600;}
  .nav-link.is-active::after{transform:scaleX(1);}

  .header-actions{display:flex;align-items:center;gap:12px;}
  .menu-btn{
    display:inline-flex;
    flex-direction:column;
    justify-content:center;
    gap:5px;
    width:42px;
    height:42px;
    padding:0 10px;
    border-radius:10px;
    border:1px solid var(--line-strong);
    background:transparent;
    cursor:pointer;
    transition:border-color .2s var(--ease), background .2s var(--ease);
  }
  .menu-btn span{display:block;height:2px;border-radius:2px;background:var(--text);transition:transform .24s var(--ease), opacity .2s var(--ease);}
  .menu-btn:hover{border-color:rgba(255,255,255,.3);background:rgba(255,255,255,.05);}
  .menu-btn[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .menu-btn[aria-expanded="true"] span:nth-child(2){opacity:0;}
  .menu-btn[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

  @media (min-width:1024px){
    .nav-desktop{display:flex;}
    .menu-btn{display:none;}
    .header-inner{min-height:72px;}
  }

  /* 移动抽屉 */
  .drawer{
    position:fixed;
    inset:0;
    z-index:70;
    background:rgba(4,8,16,.97);
    -webkit-backdrop-filter:blur(12px);
    backdrop-filter:blur(12px);
    padding:84px 24px 32px;
    display:flex;
    flex-direction:column;
    gap:6px;
    transform:translateY(-100%);
    opacity:0;
    pointer-events:none;
    transition:transform .3s var(--ease), opacity .3s var(--ease);
  }
  .drawer.is-open{transform:translateY(0);opacity:1;pointer-events:auto;}
  .drawer-close{
    position:absolute;
    top:20px;right:20px;
    width:42px;height:42px;
    border-radius:10px;
    border:1px solid var(--line-strong);
    background:transparent;
    color:var(--text);
    font-size:20px;
    line-height:1;
    cursor:pointer;
  }
  .drawer-link{
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding:16px 4px;
    border-bottom:1px solid var(--line);
    font-size:17px;
    color:var(--muted);
    opacity:0;
    transform:translateY(8px);
    transition:opacity .3s var(--ease), transform .3s var(--ease), color .2s var(--ease);
  }
  .drawer-link.is-active{color:var(--primary);font-weight:600;}
  .drawer.is-open .drawer-link{opacity:1;transform:translateY(0);}
  .drawer.is-open .drawer-link:nth-child(2){transition-delay:.04s;}
  .drawer.is-open .drawer-link:nth-child(3){transition-delay:.08s;}
  .drawer.is-open .drawer-link:nth-child(4){transition-delay:.12s;}
  .drawer-cta{margin-top:24px;}
  @media (min-width:1024px){.drawer{display:none;}}

  /* 按钮 */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    font-size:15px;
    font-weight:600;
    line-height:1;
    padding:13px 22px;
    border-radius:var(--r-btn);
    border:1px solid transparent;
    cursor:pointer;
    text-decoration:none;
    transition:background .2s var(--ease), box-shadow .2s var(--ease), transform .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
  }
  .btn-sm{padding:10px 16px;font-size:14px;border-radius:9px;}
  .btn-primary{background:var(--primary);color:#04131F;}
  .btn-primary:hover{background:#3FB4FF;box-shadow:0 0 24px rgba(42,169,255,.45);transform:translateY(-1px);}
  .btn-primary:active{background:var(--primary-press);transform:translateY(0);box-shadow:0 0 12px rgba(42,169,255,.25);}
  .btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text);}
  .btn-ghost:hover{border-color:rgba(255,255,255,.3);background:rgba(255,255,255,.06);transform:translateY(-1px);}
  .btn-ghost:active{transform:translateY(0);background:rgba(255,255,255,.03);}
  .btn-amber{background:var(--amber);color:#241703;border-radius:999px;}
  .btn-amber:hover{background:#FFC24D;box-shadow:0 0 22px rgba(255,180,39,.4);transform:translateY(-1px);}
  .btn-amber:active{transform:translateY(0);box-shadow:0 0 10px rgba(255,180,39,.22);}
  .btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;box-shadow:none;transform:none;}
  .btn:focus-visible,
  .menu-btn:focus-visible,
  .drawer-close:focus-visible,
  .faq-q:focus-visible,
  a:focus-visible,
  input:focus-visible,
  button:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

  .link-more{
    display:inline-flex;
    align-items:center;
    gap:6px;
    color:var(--primary);
    font-size:14px;
    font-weight:600;
    transition:color .2s var(--ease);
  }
  .link-more:hover{color:#6FC6FF;text-decoration:underline;text-underline-offset:3px;}

  /* 页头 */
  .page-hero{
    position:relative;
    padding:36px 0 60px;
    overflow:hidden;
    border-bottom:1px solid var(--line);
  }
  .page-hero-bg{
    position:absolute;
    inset:0;
    background-image:url("/assets/images/backpic/back-2.webp");
    background-size:cover;
    background-position:center;
    opacity:.16;
    z-index:0;
  }
  .page-hero::after{
    content:"";
    position:absolute;
    inset:0;
    background:linear-gradient(180deg, rgba(6,11,20,.62) 0%, rgba(6,11,20,.94) 72%, var(--bg) 100%);
    z-index:0;
  }
  .breadcrumb{
    position:relative;
    z-index:1;
    display:flex;
    align-items:center;
    flex-wrap:wrap;
    gap:8px;
    font-size:13px;
    color:var(--faint);
    margin-bottom:28px;
  }
  .breadcrumb a{color:var(--muted);transition:color .2s var(--ease);}
  .breadcrumb a:hover{color:var(--primary);}
  .breadcrumb .sep{color:#3B4A61;}

  .hero-grid{
    position:relative;
    z-index:1;
    display:grid;
    gap:28px;
    grid-template-columns:1fr;
    align-items:center;
  }
  .hero-figure{
    position:relative;
    border-radius:var(--r-panel);
    overflow:hidden;
    border:1px solid var(--line);
    box-shadow:var(--shadow-card);
    aspect-ratio:16/10;
    order:2;
  }
  .hero-figure img{width:100%;height:100%;object-fit:cover;}
  .hero-figure::after{
    content:"";
    position:absolute;
    inset:0;
    background:linear-gradient(180deg, rgba(6,11,20,.05) 0%, rgba(6,11,20,.55) 100%);
  }
  .hero-figure figcaption{
    position:absolute;
    left:16px;
    bottom:14px;
    z-index:2;
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:6px 12px;
    border-radius:999px;
    font-size:12.5px;
    color:var(--text);
    background:rgba(12,21,38,.72);
    border:1px solid var(--line);
    -webkit-backdrop-filter:blur(8px);
    backdrop-filter:blur(8px);
  }
  .dot-live{
    width:7px;height:7px;border-radius:50%;
    background:var(--live);
    box-shadow:0 0 0 0 rgba(255,59,107,.6);
    animation:pulse 2s var(--ease) infinite;
  }
  @keyframes pulse{
    0%{box-shadow:0 0 0 0 rgba(255,59,107,.55);}
    70%{box-shadow:0 0 0 8px rgba(255,59,107,0);}
    100%{box-shadow:0 0 0 0 rgba(255,59,107,0);}
  }

  .hero-copy{order:1;}
  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:12.5px;
    letter-spacing:.08em;
    color:var(--cyan);
    padding:6px 12px;
    border-radius:999px;
    border:1px solid rgba(75,227,193,.28);
    background:rgba(75,227,193,.07);
    margin-bottom:18px;
  }
  .hero-copy h1{
    font-size:30px;
    line-height:1.22;
    font-weight:700;
    letter-spacing:.01em;
    margin-bottom:16px;
  }
  .hero-copy h1 em{
    font-style:normal;
    color:var(--primary);
  }
  .hero-lead{
    font-size:15.5px;
    line-height:1.8;
    color:var(--muted);
    max-width:640px;
    margin-bottom:22px;
  }
  .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px;}
  .tag{
    font-size:12.5px;
    color:var(--muted);
    padding:6px 12px;
    border-radius:6px;
    border:1px solid var(--line);
    background:rgba(255,255,255,.03);
  }
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;}

  @media (min-width:768px){
    .page-hero{padding:48px 0 72px;}
    .hero-copy h1{font-size:38px;}
    .hero-lead{font-size:16px;}
  }
  @media (min-width:1024px){
    .page-hero{padding:56px 0 84px;}
    .hero-grid{grid-template-columns:5fr 7fr;gap:40px;}
    .hero-figure{order:1;}
    .hero-copy{order:2;}
    .hero-copy h1{font-size:44px;line-height:1.18;}
  }

  /* 区块 */
  .section{padding-top:56px;padding-bottom:56px;position:relative;z-index:1;}
  @media (min-width:1024px){
    .section{padding-top:88px;padding-bottom:88px;}
  }
  .section-head{max-width:760px;margin-bottom:34px;}
  .section-head h2{
    font-size:24px;
    line-height:1.32;
    font-weight:700;
    margin-bottom:12px;
  }
  .section-head p{color:var(--muted);font-size:15px;line-height:1.8;max-width:660px;}
  @media (min-width:1024px){
    .section-head h2{font-size:30px;}
    .section-head{margin-bottom:44px;}
  }

  /* 编号列表 */
  .step-list{
    border-top:1px solid var(--line);
  }
  .step-item{
    display:grid;
    grid-template-columns:56px 1fr 24px;
    align-items:center;
    gap:14px;
    padding:22px 12px;
    border-bottom:1px solid var(--line);
    transition:background .24s var(--ease), padding-left .24s var(--ease);
  }
  .step-item:hover{background:rgba(42,169,255,.055);padding-left:18px;}
  .step-num{
    font-size:26px;
    font-weight:700;
    line-height:1;
    color:rgba(42,169,255,.75);
    letter-spacing:.02em;
    transition:color .24s var(--ease), transform .24s var(--ease);
  }
  .step-item:hover .step-num{color:var(--primary);transform:translateX(2px);}
  .step-title{
    font-size:17px;
    font-weight:600;
    line-height:1.5;
    color:var(--text);
    margin-bottom:6px;
    transition:color .24s var(--ease);
  }
  .step-item:hover .step-title{color:var(--primary);}
  .step-desc{
    font-size:14.5px;
    line-height:1.75;
    color:var(--muted);
    max-width:820px;
  }
  .step-meta{
    display:inline-flex;
    align-items:center;
    gap:8px;
    flex-wrap:wrap;
    margin-top:10px;
  }
  .meta-chip{
    font-size:12px;
    color:var(--faint);
    padding:3px 9px;
    border-radius:6px;
    border:1px solid var(--line);
    background:rgba(255,255,255,.02);
  }
  .step-arrow{
    width:22px;height:22px;
    color:var(--faint);
    transition:color .24s var(--ease), transform .24s var(--ease);
  }
  .step-item:hover .step-arrow{color:var(--primary);transform:translateX(3px);}

  @media (min-width:768px){
    .step-item{grid-template-columns:96px 1fr 26px;gap:22px;padding:26px 16px;}
    .step-num{font-size:38px;}
    .step-title{font-size:20px;}
    .step-desc{font-size:15px;}
  }
  @media (min-width:1024px){
    .step-item{padding:30px 18px;}
  }

  /* 上线节奏时间轴 */
  .timeline{
    display:grid;
    gap:18px;
    grid-template-columns:1fr;
    padding:0;
    margin:0 0 40px;
    list-style:none;
  }
  .timeline li{
    position:relative;
    padding-left:26px;
    border-left:2px solid rgba(42,169,255,.28);
    padding-bottom:6px;
  }
  .timeline li::before{
    content:"";
    position:absolute;
    left:-6px;
    top:8px;
    width:10px;height:10px;
    border-radius:50%;
    background:var(--primary);
    box-shadow:0 0 0 4px rgba(42,169,255,.14);
  }
  .timeline strong{display:block;font-size:15px;font-weight:600;margin-bottom:4px;}
  .timeline span{font-size:14px;color:var(--muted);line-height:1.7;}
  @media (min-width:768px){
    .timeline{grid-template-columns:repeat(2,1fr);gap:22px 28px;}
  }
  @media (min-width:1024px){
    .timeline{grid-template-columns:repeat(4,1fr);gap:24px;}
    .timeline li{border-left:0;border-top:2px solid rgba(42,169,255,.28);padding:20px 0 0;padding-left:0;}
    .timeline li::before{left:0;top:-6px;}
  }

  /* 对比表 */
  .compare-wrap{
    border:1px solid var(--line);
    border-radius:var(--r-panel);
    background:var(--panel);
    box-shadow:var(--shadow-card);
    overflow:hidden;
  }
  .cmp-table{
    width:100%;
    border-collapse:collapse;
    font-size:15px;
  }
  .cmp-table thead th{
    text-align:left;
    font-size:12.5px;
    font-weight:600;
    letter-spacing:.06em;
    color:var(--faint);
    padding:16px 20px;
    background:rgba(255,255,255,.025);
    border-bottom:1px solid var(--line);
    white-space:nowrap;
  }
  .cmp-table tbody td{
    padding:18px 20px;
    border-bottom:1px solid var(--line);
    color:var(--muted);
    vertical-align:top;
    line-height:1.7;
  }
  .cmp-table tbody tr:last-child td{border-bottom:0;}
  .cmp-table tbody tr{transition:background .22s var(--ease);}
  .cmp-table tbody tr:hover{background:rgba(42,169,255,.05);}
  .cmp-table .cell-strong{
    color:var(--text);
    font-weight:600;
    font-size:15.5px;
  }
  .cmp-table .cell-strong small{
    display:block;
    font-weight:400;
    font-size:12.5px;
    color:var(--faint);
    margin-top:2px;
  }
  .cmp-note{
    margin-top:18px;
    font-size:13.5px;
    color:var(--faint);
    line-height:1.7;
  }
  @media (max-width:767px){
    .compare-wrap{border-radius:var(--r-card);background:transparent;border:0;box-shadow:none;}
    .cmp-table thead{display:none;}
    .cmp-table,
    .cmp-table tbody,
    .cmp-table tr,
    .cmp-table td{display:block;width:100%;}
    .cmp-table tr{
      background:var(--panel);
      border:1px solid var(--line);
      border-radius:var(--r-card);
      margin-bottom:14px;
      padding:6px 0;
      box-shadow:var(--shadow-soft);
    }
    .cmp-table tbody td{
      display:flex;
      justify-content:space-between;
      align-items:flex-start;
      gap:18px;
      padding:11px 18px;
      border-bottom:1px dashed var(--line);
      font-size:14px;
    }
    .cmp-table tbody td:last-child{border-bottom:0;}
    .cmp-table tbody td::before{
      content:attr(data-label);
      flex:none;
      color:var(--faint);
      font-size:12.5px;
    }
  }

  /* FAQ */
  .faq-list{
    max-width:860px;
    border-top:1px solid var(--line);
  }
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-q{
    width:100%;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:18px;
    text-align:left;
    padding:20px 4px;
    background:transparent;
    border:0;
    cursor:pointer;
    color:var(--text);
    font-size:16px;
    font-weight:600;
    line-height:1.6;
    transition:color .2s var(--ease);
  }
  .faq-q:hover{color:var(--primary);}
  .faq-icon{
    position:relative;
    flex:none;
    width:18px;height:18px;
  }
  .faq-icon::before,
  .faq-icon::after{
    content:"";
    position:absolute;
    left:50%;top:50%;
    background:var(--primary);
    border-radius:2px;
    transform:translate(-50%,-50%);
    transition:transform .24s var(--ease), opacity .24s var(--ease);
  }
  .faq-icon::before{width:14px;height:2px;}
  .faq-icon::after{width:2px;height:14px;}
  .faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
  .faq-a{
    max-height:0;
    overflow:hidden;
    opacity:0;
    transition:max-height .24s var(--ease), opacity .24s var(--ease), padding .24s var(--ease);
  }
  .faq-item.is-open .faq-a{max-height:340px;opacity:1;padding-bottom:20px;}
  .faq-a p{
    font-size:15px;
    line-height:1.8;
    color:var(--muted);
    padding-right:32px;
  }

  /* 订阅表单 */
  .subscribe-panel{
    border:1px solid var(--line);
    border-radius:var(--r-panel);
    background:var(--panel-2);
    box-shadow:var(--shadow-card);
    padding:28px 22px;
    display:grid;
    gap:22px;
    position:relative;
    overflow:hidden;
  }
  .subscribe-panel::after{
    content:"";
    position:absolute;
    right:-90px;top:-90px;
    width:260px;height:260px;
    border-radius:50%;
    background:radial-gradient(circle, rgba(42,169,255,.20) 0%, transparent 70%);
    pointer-events:none;
  }
  .subscribe-panel h3{
    font-size:21px;
    font-weight:700;
    line-height:1.4;
    margin-bottom:8px;
  }
  .subscribe-panel p{
    font-size:14.5px;
    line-height:1.78;
    color:var(--muted);
    max-width:520px;
  }
  .subscribe-form{
    display:flex;
    flex-direction:column;
    gap:12px;
    max-width:520px;
    position:relative;
    z-index:1;
  }
  .field{
    width:100%;
    height:48px;
    padding:0 16px;
    border-radius:var(--r-btn);
    background:rgba(6,11,20,.7);
    border:1px solid var(--line-strong);
    color:var(--text);
    font-size:15px;
    transition:border-color .2s var(--ease), box-shadow .2s var(--ease);
  }
  .field::placeholder{color:var(--faint);}
  .field:focus{
    outline:none;
    border-color:var(--primary);
    box-shadow:0 0 0 3px rgba(42,169,255,.22);
  }
  .form-note{
    font-size:12.5px;
    color:var(--faint);
    line-height:1.7;
  }
  .form-msg{
    display:none;
    font-size:14px;
    line-height:1.7;
    padding:10px 14px;
    border-radius:8px;
    background:rgba(75,227,193,.07);
    border-left:3px solid var(--cyan);
    color:var(--muted);
  }
  .form-msg.is-visible{display:block;}
  .form-msg.is-error{
    background:rgba(255,59,107,.07);
    border-left-color:var(--live);
  }
  @media (min-width:768px){
    .subscribe-panel{padding:38px 34px;grid-template-columns:1fr 1fr;align-items:center;gap:34px;}
    .subscribe-form{max-width:none;}
  }

  /* 底部 CTA 带 */
  .cta-band{
    position:relative;
    border:1px solid var(--line);
    border-radius:var(--r-panel);
    overflow:hidden;
    padding:38px 24px;
    background:var(--panel);
    box-shadow:var(--shadow-card);
  }
  .cta-band-bg{
    position:absolute;
    inset:0;
    background-image:url("/assets/images/backpic/back-3.png");
    background-size:cover;
    background-position:center;
    opacity:.18;
  }
  .cta-band::after{
    content:"";
    position:absolute;
    inset:0;
    background:linear-gradient(90deg, rgba(6,11,20,.94) 0%, rgba(6,11,20,.72) 100%);
  }
  .cta-inner{position:relative;z-index:1;max-width:680px;}
  .cta-inner h2{font-size:23px;font-weight:700;line-height:1.36;margin-bottom:12px;}
  .cta-inner p{font-size:15px;line-height:1.8;color:var(--muted);margin-bottom:24px;}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
  @media (min-width:1024px){
    .cta-band{padding:56px 52px;}
    .cta-inner h2{font-size:30px;}
  }

  /* 页脚 */
  .site-footer{
    border-top:1px solid var(--line);
    background:#04080F;
    margin-top:20px;
    padding-top:54px;
    position:relative;
    z-index:1;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:34px;
    padding-bottom:44px;
  }
  .footer-brand{
    display:inline-flex;
    align-items:center;
    gap:10px;
    font-size:17px;
    font-weight:700;
    color:var(--text);
    margin-bottom:14px;
  }
  .footer-desc{
    font-size:14px;
    line-height:1.8;
    color:var(--muted);
    max-width:340px;
  }
  .footer-title{
    font-size:13px;
    font-weight:600;
    letter-spacing:.08em;
    color:var(--faint);
    margin-bottom:14px;
  }
  .footer-list{display:flex;flex-direction:column;gap:10px;}
  .footer-list a,
  .footer-list span{
    font-size:14px;
    color:var(--muted);
    line-height:1.6;
    transition:color .2s var(--ease);
  }
  .footer-list a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}
  .footer-bottom{
    display:flex;
    flex-direction:column;
    gap:8px;
    padding:20px 0 28px;
    border-top:1px solid var(--line);
    font-size:12.5px;
    color:var(--faint);
    line-height:1.7;
  }
  @media (min-width:640px){
    .footer-grid{grid-template-columns:repeat(2,1fr);gap:36px;}
  }
  @media (min-width:1024px){
    .footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
    .footer-bottom{flex-direction:row;justify-content:space-between;align-items:center;}
  }

  /* 进场动效 */
  .reveal{
    opacity:0;
    transform:translateY(8px);
    transition:opacity .32s var(--ease), transform .32s var(--ease);
  }
  .reveal.is-visible{opacity:1;transform:translateY(0);}

  @media (prefers-reduced-motion: reduce){
    html{scroll-behavior:auto;}
    *,*::before,*::after{
      animation-duration:.001ms !important;
      animation-iteration-count:1 !important;
      transition-duration:.001ms !important;
    }
    .reveal{opacity:1;transform:none;}
  }