/* roulang page: index */
:root{
  --bg:#050B14;
  --bg-deep:#03070E;
  --panel:#0B1420;
  --panel-2:#0F1B2A;
  --primary:#2DD4C0;
  --primary-hi:#4BE3D1;
  --primary-lo:#17B4A4;
  --secondary:#6D7BFF;
  --warm:#FFB25E;
  --text:#E9F0F8;
  --text-mute:#94A6BD;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.05);
  --glass-brd:rgba(255,255,255,.12);
  --r-lg:16px;
  --r-md:12px;
  --r-pill:999px;
  --shadow-card:0 18px 40px -26px rgba(0,0,0,.85), inset 0 1px 0 rgba(255,255,255,.06);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.28}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
::selection{background:rgba(45,212,192,.35);color:#fff}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 32px}}

.section{padding:68px 0;position:relative}
@media(min-width:1024px){.section{padding:96px 0}}
.section + .section{border-top:1px solid var(--line)}
.section-head{display:flex;flex-wrap:wrap;gap:16px;align-items:flex-end;justify-content:space-between;margin-bottom:36px}
@media(min-width:1024px){.section-head{margin-bottom:48px}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;color:var(--primary);
  text-transform:uppercase;font-weight:600;margin-bottom:12px;
}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--primary);display:block}
.section-head h2{font-size:clamp(1.5rem,2.6vw,2.05rem)}
.section-head p{color:var(--text-mute);font-size:15px;max-width:46em;margin-top:10px}
.link-more{
  color:var(--primary);font-size:15px;font-weight:600;
  display:inline-flex;align-items:center;gap:6px;
  transition:transform .22s var(--ease),color .22s var(--ease);
}
.link-more:hover{color:var(--primary-hi);transform:translateX(3px)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),filter .24s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-lo));
  color:#04110F;
  box-shadow:0 8px 28px -6px rgba(45,212,192,.45);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 14px 34px -8px rgba(45,212,192,.5)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{background:transparent;border-color:var(--glass-brd);color:var(--text)}
.btn-ghost:hover{border-color:rgba(45,212,192,.6);color:var(--primary);transform:translateY(-2px)}
.btn-sm{min-height:42px;padding:0 18px;font-size:14px;border-radius:12px}
.btn-block{width:100%}
.btn[disabled]{opacity:.4;box-shadow:none;cursor:not-allowed}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;line-height:1.6;
  background:rgba(45,212,192,.18);color:var(--primary);
}
.badge-warm{background:rgba(255,178,94,.16);color:var(--warm)}
.badge-plain{background:var(--glass);color:var(--text-mute);border:1px solid var(--glass-brd)}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--glass-brd);
  font-size:14px;color:var(--text);min-height:44px;
  transition:border-color .22s var(--ease),color .22s var(--ease),background .22s var(--ease);
}
.chip:hover{border-color:rgba(45,212,192,.6);color:var(--primary)}

/* ---------- 导航 ---------- */
.site-header{
  position:absolute;top:0;left:0;right:0;z-index:60;
  backdrop-filter:blur(16px) saturate(120%);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  background:rgba(5,11,20,.35);
  border-bottom:1px solid var(--glass-brd);
  box-shadow:0 10px 30px -20px #000;
  transition:background .3s var(--ease),height .3s var(--ease);
}
.site-header.is-stuck{
  position:fixed;background:rgba(5,11,20,.88);
  border-bottom-color:var(--line);
}
.nav-wrap{
  max-width:1240px;margin:0 auto;padding:0 20px;
  height:64px;display:flex;align-items:center;justify-content:space-between;gap:16px;
}
@media(min-width:768px){.nav-wrap{padding:0 32px}}
@media(min-width:1024px){.nav-wrap{height:72px}}
.site-header.is-stuck .nav-wrap{height:60px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex-shrink:0;
  background:linear-gradient(135deg,rgba(45,212,192,.22),rgba(109,123,255,.16));
  border:1px solid rgba(45,212,192,.45);
  display:flex;align-items:center;justify-content:center;
}
.brand-text{font-size:15px;font-weight:700;line-height:1.25;letter-spacing:0}
@media(min-width:1024px){.brand-text{font-size:16px}}
.nav-links{display:none;align-items:center;gap:28px}
@media(min-width:1024px){.nav-links{display:flex}}
.nav-links a{
  position:relative;font-size:15px;color:var(--text);padding:6px 0;
  transition:color .22s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:-2px;height:2px;width:0;
  background:var(--primary);transition:width .22s var(--ease);
}
.nav-links a:hover{color:var(--primary)}
.nav-links a:hover::after{width:16px}
.nav-links a[aria-current="page"]{color:var(--primary)}
.nav-links a[aria-current="page"]::after{width:16px}
.nav-actions{display:flex;align-items:center;gap:10px}
.icon-btn{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--glass-brd);
  background:var(--glass);display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:border-color .22s var(--ease),color .22s var(--ease);
}
.icon-btn:hover{border-color:rgba(45,212,192,.6);color:var(--primary)}
.nav-cta{display:none}
@media(min-width:1024px){.nav-cta{display:inline-flex}}
.nav-search{
  max-width:1240px;margin:0 auto;padding:0 20px 16px;
}
@media(min-width:768px){.nav-search{padding:0 32px 16px}}
.nav-search input{
  width:100%;height:48px;border-radius:12px;padding:0 16px;
  background:rgba(255,255,255,.04);border:1px solid var(--glass-brd);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.nav-search input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(45,212,192,.18)}
.nav-search input::placeholder{color:var(--text-mute)}

.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:340px;z-index:80;
  background:rgba(11,20,32,.92);
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
  border-left:1px solid var(--glass-brd);
  padding:22px;transform:translateX(100%);
  transition:transform .3s var(--ease);
  display:flex;flex-direction:column;gap:8px;
}
.drawer.is-open{transform:translateX(0)}
.drawer-close{align-self:flex-end;margin-bottom:8px}
.drawer a{
  display:block;padding:14px 4px;border-bottom:1px solid var(--line);
  font-size:16px;min-height:48px;
}
.drawer a:hover{color:var(--primary)}
.drawer .btn{margin-top:18px}
.backdrop{
  position:fixed;inset:0;background:rgba(3,7,14,.6);z-index:70;
  opacity:0;pointer-events:none;transition:opacity .3s var(--ease);
}
.backdrop.is-open{opacity:1;pointer-events:auto}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:112px 0 64px;min-height:620px;display:flex;align-items:center}
@media(min-width:1024px){.hero{padding:150px 0 96px}}
.hero-bg{
  position:absolute;inset:0;z-index:0;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  opacity:.45;
}
.hero-shade{
  position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(5,11,20,.35) 0%,rgba(5,11,20,.86) 62%,var(--bg) 100%);
}
.hero-tex{
  position:absolute;inset:0;z-index:1;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:40px 40px;
}
.hero-glow{position:absolute;inset:0;z-index:1;pointer-events:none;
  background:
    radial-gradient(520px 320px at 12% 18%,rgba(45,212,192,.08),transparent 70%),
    radial-gradient(560px 340px at 88% 72%,rgba(109,123,255,.06),transparent 70%);
}
.hero .container{position:relative;z-index:3}
.hero-grid{display:grid;grid-template-columns:1fr;gap:44px;align-items:center}
@media(min-width:1024px){.hero-grid{grid-template-columns:6fr 5fr;gap:56px}}
.hero h1{font-size:clamp(1.9rem,4.6vw,3.4rem);line-height:1.15;font-weight:800;letter-spacing:-.01em;margin-bottom:18px}
.hero h1 em{font-style:normal;color:var(--primary)}
.hero-sub{font-size:17px;color:var(--text-mute);max-width:34em;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px}
.hero-badges span{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;color:var(--text-mute);
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--glass-brd);
}
.hero-badges span::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--primary)}

.glass-card{
  background:linear-gradient(180deg,rgba(255,255,255,.07),rgba(255,255,255,.03));
  border:1px solid var(--glass-brd);
  border-radius:var(--r-lg);
  backdrop-filter:blur(16px) saturate(120%);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  box-shadow:var(--shadow-card);
}
.hero-card{position:relative;padding:18px}
.hero-card-media{
  border-radius:var(--r-md);overflow:hidden;aspect-ratio:16/11;margin-bottom:16px;
}
.hero-card-media img{width:100%;height:100%;object-fit:cover}
.hero-card-tag{position:absolute;top:28px;right:28px;z-index:2}
.entry-row{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:12px 14px;border-radius:12px;background:rgba(255,255,255,.04);
  border:1px solid var(--line);margin-bottom:10px;
}
.entry-row:last-child{margin-bottom:0}
.entry-label{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-mute)}
.entry-value{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:14px;color:var(--text);font-weight:600}
.dot{width:8px;height:8px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px rgba(45,212,192,.14);flex-shrink:0}

/* ---------- 三步 ---------- */
.steps{position:relative;display:grid;grid-template-columns:1fr;gap:34px}
.step{position:relative;padding-left:56px}
.step-num{
  position:absolute;left:0;top:0;width:44px;height:44px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:15px;font-weight:700;color:var(--primary);
  border:3px solid rgba(45,212,192,.35);background:var(--bg);
}
.step h3{font-size:1.2rem;font-weight:600;margin-bottom:10px}
.step p{font-size:15px;color:var(--text-mute)}
.step-prep{
  display:inline-flex;align-items:center;gap:8px;margin-top:14px;
  font-size:13px;color:var(--text-mute);
  padding:6px 12px;border-radius:8px;background:var(--glass);border:1px dashed var(--glass-brd);
}
.steps::before{
  content:"";position:absolute;left:21px;top:46px;bottom:20px;
  border-left:1px dashed var(--line);
}
@media(min-width:1024px){
  .steps{grid-template-columns:repeat(3,1fr);gap:32px;padding-top:6px}
  .steps::before{left:4%;right:4%;top:72px;bottom:auto;border-left:0;border-top:1px dashed var(--line)}
  .step{padding-left:0;padding-top:0}
  .step-num{position:static;width:88px;height:88px;font-size:24px;border-width:3px;margin-bottom:20px;background:var(--bg)}
  .step:nth-child(2){transform:translateY(24px)}
}
.step-index{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:13px;color:var(--warm);letter-spacing:.16em;display:block;margin-bottom:8px;
}

/* ---------- 能力（非对称） ---------- */
.capability{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:1024px){.capability{grid-template-columns:5fr 6fr;gap:48px;align-items:start}}
.cap-list{display:grid;gap:14px}
.cap-item{
  display:flex;gap:16px;padding:20px;border-radius:var(--r-lg);
  background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow-card);
  transition:transform .28s var(--ease),border-color .28s var(--ease);
}
.cap-item:hover{transform:translateY(-4px);border-color:rgba(45,212,192,.4)}
.cap-icon{
  width:42px;height:42px;flex-shrink:0;border-radius:12px;
  background:rgba(45,212,192,.12);border:1px solid rgba(45,212,192,.3);
  display:flex;align-items:center;justify-content:center;color:var(--primary);
}
.cap-item h3{font-size:1.05rem;font-weight:600;margin-bottom:6px}
.cap-item p{font-size:14px;color:var(--text-mute)}
.cap-visual{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  position:relative;box-shadow:var(--shadow-card);
}
.cap-visual img{width:100%;aspect-ratio:4/3;object-fit:cover}
.cap-visual-cap{
  position:absolute;left:0;right:0;bottom:0;padding:18px 20px;
  background:linear-gradient(180deg,rgba(5,11,20,0),rgba(5,11,20,.92));
  font-size:14px;color:var(--text-mute);
}

/* ---------- 案例证明 ---------- */
.proof{display:grid;grid-template-columns:1fr;gap:26px}
@media(min-width:1024px){.proof{grid-template-columns:7fr 5fr;gap:32px}}
.proof-main{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow-card);display:flex;flex-direction:column;
  transition:transform .28s var(--ease),border-color .28s var(--ease);
}
.proof-main:hover{transform:translateY(-4px);border-color:rgba(45,212,192,.4)}
.proof-main img{width:100%;aspect-ratio:16/9;object-fit:cover}
.proof-main-body{padding:24px}
.proof-main-body h3{font-size:1.25rem;margin-bottom:12px}
.proof-main-body p{font-size:15px;color:var(--text-mute)}
.metrics{display:flex;flex-wrap:wrap;gap:28px;margin-top:22px;padding-top:20px;border-top:1px solid var(--line)}
.metric b{
  display:block;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:1.35rem;color:var(--primary);font-weight:700;
}
.metric span{font-size:13px;color:var(--text-mute)}
.proof-side{display:grid;gap:20px;align-content:start}
.proof-row{
  position:relative;padding:20px 20px 20px 26px;border-radius:12px;
  background:var(--panel-2);border:1px solid var(--line);
  transition:transform .28s var(--ease),border-color .28s var(--ease);
}
.proof-row::before{content:"";position:absolute;left:0;top:18px;bottom:18px;width:4px;border-radius:4px;background:var(--primary)}
.proof-row:hover{transform:translateY(-4px);border-color:rgba(45,212,192,.4)}
.proof-row h3{font-size:1.02rem;font-weight:600;margin-bottom:8px}
.proof-row p{font-size:14px;color:var(--text-mute)}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:1024px){.news-grid{grid-template-columns:6fr 5fr;gap:28px}}
.news-feature{
  display:flex;flex-direction:column;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .28s var(--ease),border-color .28s var(--ease);
}
.news-feature:hover{transform:translateY(-4px);border-color:rgba(45,212,192,.4)}
.news-feature-media{overflow:hidden}
.news-feature-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .32s var(--ease)}
.news-feature:hover .news-feature-media img{transform:scale(1.03)}
.news-feature-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-feature-body h3{font-size:1.2rem;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-feature-body p{font-size:14px;color:var(--text-mute);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-side{display:grid;gap:16px;align-content:start}
.news-row{
  display:flex;gap:14px;padding:14px;border-radius:12px;
  background:var(--panel);border:1px solid var(--line);
  transition:transform .28s var(--ease),border-color .28s var(--ease);
}
.news-row:hover{transform:translateY(-4px);border-color:rgba(45,212,192,.4)}
.news-row img{width:96px;height:72px;border-radius:10px;object-fit:cover;flex-shrink:0}
.news-row h3{font-size:.98rem;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:6px}
.meta-row{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;font-size:13px;color:var(--text-mute)}
.meta-row .read{color:var(--primary);font-weight:600}
.empty-state{
  border:1px dashed var(--glass-brd);border-radius:var(--r-lg);
  background:rgba(255,255,255,.03);backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  padding:56px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:16px;
}
.empty-state svg{color:var(--primary);opacity:.8}
.empty-state p{color:var(--text-mute);font-size:15px}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:1024px){.faq-grid{grid-template-columns:4fr 6fr;gap:56px;align-items:start}}
.faq-side{position:relative}
@media(min-width:1024px){.faq-side{position:sticky;top:96px}}
.faq-side h2{font-size:clamp(1.5rem,2.6vw,2.05rem);margin-bottom:14px}
.faq-side p{color:var(--text-mute);font-size:15px;margin-bottom:22px}
.faq-list{display:grid;gap:12px}
details.faq{
  border:1px solid var(--line);border-radius:12px;background:var(--panel);
  overflow:hidden;transition:border-color .24s var(--ease),background .24s var(--ease);
}
details.faq[open]{background:var(--glass);border-color:rgba(45,212,192,.35)}
details.faq summary{
  list-style:none;cursor:pointer;padding:18px 20px;font-size:15.5px;font-weight:600;
  display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:48px;
  position:relative;
}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{
  content:"+";font-size:20px;color:var(--primary);line-height:1;
  transition:transform .2s var(--ease);flex-shrink:0;
}
details.faq summary::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:0 3px 3px 0;
  background:var(--primary);opacity:0;transition:opacity .2s var(--ease);
}
details.faq[open] summary::before{opacity:1}
details.faq[open] summary::after{transform:rotate(45deg)}
.faq-body{padding:0 20px 20px;font-size:15px;color:var(--text-mute);line-height:1.8}

/* ---------- CTA / 表单 ---------- */
.cta-section{position:relative;overflow:hidden;background:var(--bg-deep)}
.cta-bg{
  position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.35;
}
.cta-shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(3,7,14,.86),rgba(3,7,14,.95))}
.cta-panel{
  position:relative;z-index:2;border-radius:var(--r-lg);
  border:1px solid var(--glass-brd);
  background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.025));
  backdrop-filter:blur(16px) saturate(120%);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  box-shadow:var(--shadow-card);
  padding:32px 24px;
  display:grid;grid-template-columns:1fr;gap:36px;
}
@media(min-width:1024px){.cta-panel{grid-template-columns:5fr 4fr;gap:56px;padding:48px}}
.cta-panel h2{font-size:clamp(1.5rem,2.6vw,2.05rem);margin-bottom:14px}
.cta-panel > div > p{color:var(--text-mute);font-size:15px}
.cta-points{display:grid;gap:12px;margin:24px 0}
.cta-points li{display:flex;align-items:center;gap:10px;font-size:15px;color:var(--text)}
.cta-points li::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);
  box-shadow:0 0 0 4px rgba(45,212,192,.14);flex-shrink:0;
}
.trust-row{display:flex;flex-wrap:wrap;gap:10px;padding-top:20px;border-top:1px solid var(--line)}
.form-card{
  background:rgba(255,255,255,.05);border:1px solid var(--glass-brd);
  border-radius:var(--r-lg);padding:26px;
}
.form-card h3{font-size:1.15rem;margin-bottom:6px}
.form-card .form-hint{font-size:13px;color:var(--text-mute);margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--text-mute);margin-bottom:8px}
.field .req{color:var(--warm);margin-left:2px}
.field input,.field select,.field textarea{
  width:100%;min-height:48px;padding:12px 14px;border-radius:12px;
  background:rgba(255,255,255,.04);border:1px solid var(--glass-brd);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.field textarea{min-height:104px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(45,212,192,.18);
}
.field select option{background:var(--panel);color:var(--text)}
.form-note{font-size:12px;color:var(--text-mute);margin-top:12px;line-height:1.7}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-deep);border-top:1px solid var(--line);padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px}
@media(min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.footer-grid{grid-template-columns:4fr 2fr 2fr 3fr;gap:32px}}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--text-mute);max-width:22em}
.footer-col h4{font-size:14px;font-weight:600;margin-bottom:16px;color:var(--text)}
.footer-col li{margin-bottom:10px}
.footer-col a,.footer-col span{
  font-size:14px;color:var(--text-mute);display:inline-block;
  transition:color .22s var(--ease),transform .22s var(--ease);
}
.footer-col a:hover{color:var(--primary);transform:translateX(2px)}
.footer-bottom{
  margin-top:48px;padding:20px 0;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-mute);
}
.footer-bottom a{color:var(--text-mute);margin-left:16px}
.footer-bottom a:hover{color:var(--primary)}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .32s var(--ease),transform .32s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}
@supports not (backdrop-filter: blur(4px)){
  .site-header,.drawer,.glass-card,.cta-panel,.empty-state{background:var(--panel)}
}
@media(max-width:639px){
  .metrics{gap:20px}
  .metric b{font-size:1.15rem}
}

/* roulang page: article */
*{box-sizing:border-box}
  :root{
    --bg:#050B14;
    --bg-deep:#03070E;
    --panel:#0B1420;
    --panel-2:#0F1B2A;
    --primary:#2DD4C0;
    --primary-hi:#4BE3D1;
    --primary-lo:#17B4A4;
    --secondary:#6D7BFF;
    --warm:#FFB25E;
    --text:#E9F0F8;
    --text-mute:#94A6BD;
    --line:rgba(255,255,255,.08);
    --glass:rgba(255,255,255,.05);
    --glass-brd:rgba(255,255,255,.12);
    --r-lg:16px;
    --r-sm:12px;
    --shadow:0 18px 40px -26px rgba(0,0,0,.85);
    --ease:cubic-bezier(.22,.61,.36,1);
  }
  html{scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  img{max-width:100%;display:block;border-radius:var(--r-sm)}
  a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
  button,input,select,textarea{font:inherit;color:inherit}
  ul,ol{margin:0;padding:0}
  h1,h2,h3,h4{margin:0}
  :focus-visible{outline:2px solid var(--primary);outline-offset:2px}
  .container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
  @media (min-width:768px){.container{padding:0 32px}}
  .mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}

  /* ===== 顶部导航 ===== */
  .site-header{
    position:fixed;top:0;left:0;right:0;z-index:70;
    height:64px;display:flex;align-items:center;
    background:rgba(5,11,20,.72);
    backdrop-filter:blur(16px) saturate(120%);
    -webkit-backdrop-filter:blur(16px) saturate(120%);
    border-bottom:1px solid var(--glass-brd);
    box-shadow:0 10px 30px -20px #000;
    transition:height .25s var(--ease),background .25s var(--ease);
  }
  .site-header.is-solid{height:60px;background:rgba(5,11,20,.9)}
  .nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}
  .brand{display:flex;align-items:center;gap:10px;min-height:44px}
  .brand-mark{
    width:34px;height:34px;border-radius:10px;display:grid;place-items:center;flex:none;
    background:linear-gradient(135deg,rgba(45,212,192,.22),rgba(109,123,255,.12));
    border:1px solid var(--glass-brd);
  }
  .brand-text{font-size:15px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
  .nav-links{display:none;align-items:center;gap:26px}
  .nav-links a{position:relative;font-size:15px;padding:9px 2px;color:var(--text)}
  .nav-links a::after{
    content:"";position:absolute;left:0;bottom:2px;width:0;height:2px;border-radius:2px;
    background:var(--primary);transition:width .24s var(--ease);
  }
  .nav-links a:hover{color:var(--primary)}
  .nav-links a:hover::after{width:16px}
  .nav-links a[aria-current="page"]{color:var(--primary)}
  .nav-links a[aria-current="page"]::after{width:16px}
  .nav-actions{display:flex;align-items:center;gap:10px}
  .icon-btn{
    width:44px;height:44px;border-radius:12px;display:none;place-items:center;
    background:var(--glass);border:1px solid var(--glass-brd);cursor:pointer;
    transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
  }
  .icon-btn:hover{border-color:rgba(45,212,192,.6);color:var(--primary)}
  .search-wrap{position:relative}
  .search-panel{
    position:absolute;top:calc(100% + 14px);right:0;display:none;gap:8px;padding:10px;
    background:rgba(11,20,32,.97);border:1px solid var(--glass-brd);border-radius:14px;
    backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);box-shadow:var(--shadow);
    width:340px;
  }
  .search-panel.open{display:flex}
  .search-panel input{
    flex:1;height:44px;border-radius:10px;padding:0 14px;background:rgba(255,255,255,.05);
    border:1px solid var(--glass-brd);font-size:14px;
  }
  .search-panel input::placeholder{color:var(--text-mute)}
  .search-panel input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(45,212,192,.18);outline:none}
  .menu-toggle{display:inline-grid}
  @media (min-width:1024px){
    .nav-links{display:flex}
    .icon-btn{display:grid}
    .menu-toggle{display:none}
  }

  /* ===== 按钮 ===== */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:44px;padding:0 22px;border-radius:12px;font-size:15px;font-weight:600;
    border:1px solid transparent;cursor:pointer;white-space:nowrap;
    transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),filter .22s var(--ease);
  }
  .btn-primary{
    background:linear-gradient(135deg,var(--primary),var(--primary-lo));
    color:#04110F;box-shadow:0 8px 28px -6px rgba(45,212,192,.45);
  }
  .btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 10px 34px -6px rgba(45,212,192,.5)}
  .btn-primary:active{transform:translateY(-1px);box-shadow:none}
  .btn-ghost{background:transparent;border-color:var(--glass-brd);color:var(--text)}
  .btn-ghost:hover{border-color:rgba(45,212,192,.6);color:var(--primary)}
  .btn-sm{min-height:44px;padding:0 16px;font-size:14px}
  .btn-block{width:100%}
  .nav-cta{display:none}
  @media (min-width:768px){.nav-cta{display:inline-flex}}

  /* ===== 抽屉菜单 ===== */
  .drawer-backdrop{
    position:fixed;inset:0;background:rgba(3,7,14,.6);opacity:0;pointer-events:none;
    transition:opacity .28s var(--ease);z-index:80;
  }
  .drawer-backdrop.open{opacity:1;pointer-events:auto}
  .drawer{
    position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:340px;z-index:90;
    background:rgba(5,11,20,.97);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
    border-left:1px solid var(--glass-brd);padding:22px;
    display:flex;flex-direction:column;gap:10px;
    transform:translateX(100%);transition:transform .3s var(--ease);
  }
  .drawer.open{transform:translateX(0)}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
  .drawer a.drawer-link{
    display:block;padding:14px 14px;border-radius:12px;font-size:15px;
    border:1px solid transparent;color:var(--text);
  }
  .drawer a.drawer-link:hover{background:var(--glass);border-color:var(--glass-brd);color:var(--primary)}
  .drawer .btn{margin-top:14px}

  /* ===== 文章标题带 ===== */
  .article-hero{position:relative;overflow:hidden;padding:104px 0 44px;border-bottom:1px solid var(--line)}
  .article-hero-bg{
    position:absolute;inset:0;opacity:.5;
    background-image:linear-gradient(180deg,rgba(5,11,20,.5),rgba(5,11,20,.95)),
                     url('/assets/images/backpic/back-2.webp');
    background-size:cover;background-position:center;
  }
  .article-hero::after{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
                     linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
    background-size:40px 40px;
  }
  .article-hero-inner{position:relative;z-index:2}
  .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-mute);margin-bottom:18px}
  .breadcrumb a:hover{color:var(--primary)}
  .breadcrumb .sep{opacity:.45}
  .breadcrumb .current{color:var(--text);max-width:22em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .article-title{
    font-size:clamp(1.55rem,3.6vw,2.5rem);line-height:1.22;font-weight:800;letter-spacing:-.01em;
    margin:0 0 20px;max-width:22em;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:13.5px;color:var(--text-mute)}
  .badge{
    display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
    font-size:12px;font-weight:600;line-height:1.4;
  }
  .badge-aqua{background:rgba(45,212,192,.18);color:var(--primary)}
  .badge-warm{background:rgba(255,178,94,.16);color:var(--warm)}
  .badge-line{border:1px solid var(--glass-brd);color:var(--text-mute)}

  /* ===== 主体两栏 ===== */
  .article-main{padding:56px 0 72px}
  .article-grid{display:grid;grid-template-columns:1fr;gap:40px}
  @media (min-width:1024px){
    .article-grid{grid-template-columns:minmax(0,8fr) minmax(0,3fr);gap:56px}
  }
  .article-body{
    max-width:800px;font-size:17px;line-height:1.9;color:#DCE6F2;
  }
  .article-body > *:first-child{margin-top:0}
  .article-body p{margin:0 0 1em;max-width:46em}
  .article-body h2{
    position:relative;font-size:clamp(1.3rem,2.4vw,1.55rem);font-weight:700;line-height:1.35;
    margin:2.1em 0 .8em;padding-left:16px;scroll-margin-top:96px;
  }
  .article-body h2::before{
    content:"";position:absolute;left:0;top:.3em;width:4px;height:20px;border-radius:2px;background:var(--primary);
  }
  .article-body h3{font-size:1.18rem;font-weight:600;line-height:1.45;margin:1.7em 0 .6em;scroll-margin-top:96px}
  .article-body h4{font-size:1.05rem;font-weight:600;margin:1.4em 0 .5em}
  .article-body ul,.article-body ol{padding-left:1.35em;margin:0 0 1.1em}
  .article-body li{margin:.45em 0}
  .article-body a{color:var(--primary);border-bottom:1px solid rgba(45,212,192,.35)}
  .article-body a:hover{border-bottom-color:var(--primary)}
  .article-body blockquote{
    margin:1.6em 0;padding:16px 20px;border-left:3px solid var(--primary);
    background:var(--glass);border-radius:0 12px 12px 0;font-style:italic;font-size:15px;color:var(--text-mute);
  }
  .article-body img{border-radius:12px;margin:1.6em 0;width:100%;height:auto}
  .article-body figure{margin:1.8em 0}
  .article-body figcaption{font-size:13px;color:var(--text-mute);text-align:center;margin-top:10px}
  .article-body table{
    width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;
    border:1px solid var(--line);border-radius:12px;overflow:hidden;
  }
  .article-body th{background:var(--glass);font-weight:600;text-align:left}
  .article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line)}
  .article-body tr:last-child td{border-bottom:none}
  .article-body pre{
    background:var(--panel);border:1px solid var(--line);border-radius:12px;
    padding:16px;overflow:auto;font-size:14px;line-height:1.7;margin:1.6em 0;
  }
  .article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.94em}

  /* ===== 侧栏 ===== */
  .article-aside{display:flex;flex-direction:column;gap:20px}
  @media (min-width:1024px){
    .article-aside{position:sticky;top:96px;align-self:start}
  }
  .card-panel{
    background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);
    padding:20px;box-shadow:var(--shadow);
  }
  .panel-title{font-size:15px;font-weight:600;margin:0 0 14px;display:flex;align-items:center;gap:8px}
  .panel-title::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--primary)}
  .toc-list{display:flex;flex-direction:column;gap:2px}
  .toc-list a{
    display:block;padding:9px 12px;border-radius:10px;font-size:13.5px;color:var(--text-mute);
    border-left:3px solid transparent;line-height:1.6;
  }
  .toc-list a:hover{background:var(--glass);color:var(--text)}
  .toc-list a.active{color:var(--primary);border-left-color:var(--primary);background:rgba(45,212,192,.08)}
  .side-links{display:flex;flex-direction:column;gap:2px;list-style:none}
  .side-links a{
    display:block;padding:11px 4px;font-size:14px;color:var(--text-mute);line-height:1.6;
    border-bottom:1px dashed var(--line);
  }
  .side-links li:last-child a{border-bottom:none}
  .side-links a:hover{color:var(--primary);padding-left:8px}
  .contact-card p{font-size:14px;color:var(--text-mute);line-height:1.8;margin:0 0 16px}
  @media (max-width:1023px){
    .article-aside{order:2}
  }

  /* ===== 空态 ===== */
  .empty-state{
    border:1px dashed var(--glass-brd);border-radius:var(--r-lg);padding:52px 24px;text-align:center;
    background:rgba(255,255,255,.03);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  }
  .empty-icon{
    width:56px;height:56px;margin:0 auto 18px;border-radius:14px;display:grid;place-items:center;
    background:rgba(45,212,192,.14);color:var(--primary);
  }
  .empty-state h2{font-size:1.25rem;font-weight:700;margin-bottom:10px}
  .empty-state p{font-size:14.5px;color:var(--text-mute);max-width:34em;margin:0 auto 22px}

  /* ===== 板块与标题 ===== */
  .section{padding:64px 0}
  @media (min-width:768px){.section{padding:88px 0}}
  .section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:32px}
  .section-head h2{font-size:clamp(1.4rem,2.6vw,1.85rem);font-weight:700;line-height:1.3}
  .section-head p{font-size:14px;color:var(--text-mute);margin:8px 0 0;max-width:40em}
  .link-more{font-size:14px;color:var(--text-mute);display:inline-flex;align-items:center;gap:6px}
  .link-more:hover{color:var(--primary)}
  .link-more::after{content:"›";font-size:16px;line-height:1}

  /* ===== 相关推荐卡 ===== */
  .rec-grid{display:grid;grid-template-columns:1fr;gap:24px}
  @media (min-width:640px){.rec-grid{grid-template-columns:repeat(2,1fr)}}
  @media (min-width:1024px){.rec-grid{grid-template-columns:repeat(3,1fr)}}
  .rec-card{
    position:relative;background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);
    overflow:hidden;box-shadow:var(--shadow);transition:transform .26s var(--ease),border-color .26s var(--ease);
  }
  .rec-card:hover{transform:translateY(-4px);border-color:rgba(45,212,192,.4)}
  .rec-cover{display:block;overflow:hidden;aspect-ratio:16/10;background:var(--panel-2)}
  .rec-cover img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .3s var(--ease)}
  .rec-card:hover .rec-cover img{transform:scale(1.03)}
  .rec-body{padding:18px 20px 20px}
  .rec-body h3{font-size:1.02rem;font-weight:600;line-height:1.55;margin-bottom:8px;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .rec-body p{font-size:13.5px;color:var(--text-mute);line-height:1.75;margin:0 0 12px;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .rec-meta{display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--text-mute)}

  /* ===== 上一篇 / 下一篇 ===== */
  .post-nav{display:grid;grid-template-columns:1fr;gap:16px;margin-top:44px}
  @media (min-width:768px){.post-nav{grid-template-columns:1fr 1fr}}
  .post-nav-item{
    display:block;padding:18px 20px;border-radius:var(--r-sm);background:var(--panel);
    border:1px solid var(--line);transition:border-color .22s var(--ease),transform .22s var(--ease);
  }
  .post-nav-item:hover{border-color:rgba(45,212,192,.45);transform:translateY(-3px)}
  .pn-label{display:block;font-size:12.5px;color:var(--text-mute);margin-bottom:6px}
  .pn-title{display:block;font-size:15px;font-weight:600;line-height:1.6}
  .back-wrap{display:flex;justify-content:center;margin-top:32px}

  /* ===== FAQ ===== */
  .faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
  .faq-item{
    background:var(--panel);border:1px solid var(--line);border-radius:12px;overflow:hidden;
    backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
    transition:border-color .22s var(--ease);
  }
  .faq-item:hover{border-color:rgba(45,212,192,.3)}
  .faq-item summary{
    list-style:none;cursor:pointer;position:relative;display:flex;align-items:center;
    justify-content:space-between;gap:16px;padding:18px 20px;font-size:15.5px;font-weight:600;
    min-height:44px;transition:background .22s var(--ease),color .22s var(--ease);
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary::after{
    content:"+";font-family:ui-monospace,monospace;font-size:20px;color:var(--primary);
    transition:transform .2s var(--ease);flex:none;
  }
  .faq-item[open] summary{background:var(--glass);color:var(--primary)}
  .faq-item[open] summary::before{
    content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:2px;background:var(--primary);
  }
  .faq-item[open] summary::after{transform:rotate(45deg)}
  .faq-body{padding:4px 20px 20px;font-size:14.8px;line-height:1.85;color:var(--text-mute)}

  /* ===== CTA ===== */
  .cta-panel{
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;
    padding:32px 28px;border-radius:var(--r-lg);
    background:linear-gradient(120deg,rgba(45,212,192,.14),rgba(109,123,255,.08)),var(--panel);
    border:1px solid var(--glass-brd);
    backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
    box-shadow:var(--shadow);
  }
  .cta-panel h2{font-size:clamp(1.25rem,2.4vw,1.6rem);font-weight:700;line-height:1.35;margin-bottom:8px}
  .cta-panel p{font-size:14.5px;color:var(--text-mute);margin:0;max-width:44em}

  /* ===== 页脚 ===== */
  .site-footer{background:var(--bg-deep);border-top:1px solid var(--line);padding:60px 0 26px}
  .footer-grid{display:grid;grid-template-columns:1fr;gap:34px}
  @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 1.2fr;gap:40px}}
  .footer-brand p{font-size:14px;color:var(--text-mute);margin:14px 0 0;max-width:34em;line-height:1.8}
  .footer-col h4{font-size:14px;font-weight:600;margin:0 0 16px}
  .footer-col ul{list-style:none;display:flex;flex-direction:column;gap:10px}
  .footer-col a,.footer-col span{font-size:14px;color:var(--text-mute);display:inline-block;transition:color .2s var(--ease),transform .2s var(--ease)}
  .footer-col a:hover{color:var(--primary);transform:translateX(2px)}
  .footer-bottom{
    display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
    border-top:1px solid var(--line);margin-top:44px;padding-top:20px;font-size:13px;color:var(--text-mute);
  }
  .footer-bottom a{color:var(--text-mute);margin-left:16px}
  .footer-bottom a:hover{color:var(--primary)}

  /* ===== 动效 ===== */
  .reveal{opacity:0;transform:translateY(12px);transition:opacity .32s var(--ease),transform .32s var(--ease)}
  .reveal.is-visible{opacity:1;transform:none}
  @media (prefers-reduced-motion:reduce){
    .reveal{opacity:1;transform:none;transition:none}
    html{scroll-behavior:auto}
  }
  @supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){
    .site-header,.faq-item,.cta-panel,.empty-state,.search-panel{background:var(--panel)}
  }

.reveal{opacity:1;transform:none}

/* roulang page: category1 */
:root{
  --bg:#050B14;
  --bg-deep:#03070E;
  --panel:#0B1420;
  --panel-2:#0F1B2A;
  --primary:#2DD4C0;
  --primary-hi:#4BE3D1;
  --primary-lo:#17B4A4;
  --secondary:#6D7BFF;
  --warm:#FFB25E;
  --text:#E9F0F8;
  --text-mute:#94A6BD;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.05);
  --glass-brd:rgba(255,255,255,.12);
  --r-card:16px;
  --r-sm:12px;
  --r-pill:999px;
  --shadow-card:0 18px 40px -26px rgba(0,0,0,.85), inset 0 1px 0 rgba(255,255,255,.06);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  font-weight:400;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}

/* ============ 导航 ============ */
.site-header{
  position:absolute;
  top:0;left:0;right:0;
  z-index:60;
  height:72px;
  background:rgba(5,11,20,.35);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  backdrop-filter:blur(16px) saturate(120%);
  border-bottom:1px solid var(--glass-brd);
  box-shadow:0 10px 30px -20px #000;
  transition:height .28s var(--ease), background .28s var(--ease), border-color .28s var(--ease), box-shadow .28s var(--ease);
}
.site-header.is-stuck{
  position:fixed;
  height:60px;
  background:rgba(5,11,20,.88);
  border-bottom-color:var(--line);
  box-shadow:0 14px 34px -22px #000;
}
@supports not ((backdrop-filter: blur(4px)) or (-webkit-backdrop-filter: blur(4px))){
  .site-header{background:rgba(5,11,20,.92)}
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:18px;height:100%;
}
.brand{display:inline-flex;align-items:center;gap:10px;min-height:44px}
.brand-mark{
  width:32px;height:32px;flex:0 0 32px;border-radius:10px;display:grid;place-items:center;
  background:rgba(45,212,192,.12);border:1px solid rgba(45,212,192,.35);
  box-shadow:0 0 22px -8px rgba(45,212,192,.7);
}
.brand-text{
  font-size:15px;font-weight:700;letter-spacing:.01em;line-height:1.25;color:var(--text);
  max-width:14em;
}
.nav-links{display:none;align-items:center;gap:26px;font-size:15px}
@media (min-width:1024px){.nav-links{display:flex}}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;min-height:44px;padding:0 2px;
  color:var(--text);transition:color .24s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:6px;width:0;height:2px;border-radius:2px;
  background:var(--primary);transform:translateX(-50%);
  transition:width .28s var(--ease);
}
.nav-links a:hover{color:var(--primary)}
.nav-links a:hover::after{width:16px}
.nav-links a[aria-current="page"]{color:var(--primary);font-weight:600}
.nav-links a[aria-current="page"]::after{width:16px}
.header-actions{display:flex;align-items:center;gap:10px}
.icon-btn{
  width:44px;height:44px;border-radius:var(--r-sm);display:grid;place-items:center;
  border:1px solid var(--glass-brd);background:var(--glass);color:var(--text-mute);
  transition:color .24s var(--ease),border-color .24s var(--ease),background .24s var(--ease);
}
.icon-btn:hover{color:var(--primary);border-color:rgba(45,212,192,.5)}
.menu-btn{display:grid}
@media (min-width:1024px){.menu-btn{display:none}}

.search-panel{
  position:absolute;top:calc(100% + 8px);right:0;left:auto;width:min(420px,92vw);
  background:rgba(11,20,32,.96);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  backdrop-filter:blur(16px) saturate(120%);
  border:1px solid var(--glass-brd);border-radius:var(--r-card);
  padding:16px;box-shadow:0 24px 50px -30px #000;
}
.search-panel[hidden]{display:none}
.search-panel form{display:flex;gap:10px}
.field-input{
  width:100%;min-height:48px;padding:0 14px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.04);border:1px solid var(--glass-brd);color:var(--text);
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.field-input::placeholder{color:rgba(148,166,189,.75)}
.field-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(45,212,192,.18)}
.search-hint{margin-top:10px;font-size:13px;color:var(--text-mute)}
.search-wrap{position:relative}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,7,14,.6);z-index:70;
}
.drawer-mask[hidden]{display:none}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:380px;z-index:80;
  background:rgba(9,16,26,.94);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
  backdrop-filter:blur(18px) saturate(120%);
  border-left:1px solid var(--glass-brd);
  padding:18px 20px 28px;
  transform:translateX(102%);
  transition:transform .3s var(--ease);
  display:flex;flex-direction:column;gap:20px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-nav{display:flex;flex-direction:column;gap:2px}
.drawer-nav a{
  display:flex;align-items:center;min-height:48px;padding:0 12px;border-radius:var(--r-sm);
  color:var(--text);border:1px solid transparent;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.drawer-nav a:hover{background:var(--glass);color:var(--primary);border-color:var(--glass-brd)}
.drawer-nav a[aria-current="page"]{color:var(--primary);background:rgba(45,212,192,.1);border-color:rgba(45,212,192,.3)}
.drawer-cta{margin-top:auto;width:100%}

/* ============ 按钮 / 徽章 / chip ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),filter .22s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-lo));
  color:#04110F;box-shadow:0 8px 28px -6px rgba(45,212,192,.45);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 14px 34px -6px rgba(45,212,192,.55)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{background:transparent;border-color:var(--glass-brd);color:var(--text)}
.btn-ghost:hover{border-color:rgba(45,212,192,.6);color:var(--primary)}
.btn-sm{min-height:42px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.4;box-shadow:none;pointer-events:none}

.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:var(--r-pill);font-size:12px;font-weight:600;letter-spacing:.02em;
  background:rgba(45,212,192,.18);color:var(--primary);border:1px solid rgba(45,212,192,.28);
  white-space:nowrap;
}
.badge-warm{background:rgba(255,178,94,.14);color:var(--warm);border-color:rgba(255,178,94,.3)}
.badge-mute{background:var(--glass);color:var(--text-mute);border-color:var(--glass-brd)}

.chip{
  display:inline-flex;align-items:center;min-height:40px;padding:0 16px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--glass-brd);color:var(--text-mute);
  font-size:14px;white-space:nowrap;cursor:pointer;
  transition:color .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
}
.chip:hover{color:var(--text);border-color:rgba(45,212,192,.45)}
.chip.is-active{background:var(--primary);color:#04110F;border-color:transparent;font-weight:600}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  padding:132px 0 64px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  background-image:
    linear-gradient(90deg, rgba(5,11,20,.97) 0%, rgba(5,11,20,.9) 44%, rgba(5,11,20,.42) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:right center;
  background-repeat:no-repeat;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size:40px 40px;
  mask-image:linear-gradient(180deg, rgba(0,0,0,.85), transparent 85%);
  -webkit-mask-image:linear-gradient(180deg, rgba(0,0,0,.85), transparent 85%);
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(560px 320px at 12% 18%, rgba(45,212,192,.1), transparent 70%),
    radial-gradient(520px 300px at 88% 78%, rgba(109,123,255,.08), transparent 72%);
}
.hero-inner{
  position:relative;z-index:2;
  display:flex;flex-direction:column;gap:28px;
}
@media (min-width:900px){
  .hero-inner{flex-direction:row;align-items:flex-end;justify-content:space-between;gap:48px}
  .page-hero{padding:156px 0 78px}
}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--text-mute);margin-bottom:14px;flex-wrap:wrap}
.crumbs a{color:var(--text-mute);transition:color .22s var(--ease)}
.crumbs a:hover{color:var(--primary)}
.crumbs span[aria-current]{color:var(--text)}
.hero-copy{max-width:44em}
.hero-copy h1{
  font-size:clamp(1.9rem,4.6vw,3.1rem);
  line-height:1.15;font-weight:800;letter-spacing:-.01em;
  margin-bottom:14px;
}
.hero-copy h1 .hl{
  background:linear-gradient(135deg,var(--primary),var(--primary-hi));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{
  font-size:16.5px;color:var(--text-mute);max-width:34em;margin-bottom:22px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-status{
  background:var(--glass);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  backdrop-filter:blur(16px) saturate(120%);
  border:1px solid var(--glass-brd);border-radius:var(--r-card);
  padding:16px 18px;min-width:250px;
  box-shadow:var(--shadow-card);
}
.hero-status p{margin-top:10px;font-size:14px;color:var(--text-mute);line-height:1.7}
.hero-status strong{color:var(--text);font-weight:600}
@supports not ((backdrop-filter: blur(4px)) or (-webkit-backdrop-filter: blur(4px))){
  .hero-status{background:var(--panel)}
}

/* ============ 板块通用 ============ */
.section{padding:64px 0}
@media (min-width:768px){.section{padding:88px 0}}
.section-tight{padding:52px 0}
@media (min-width:768px){.section-tight{padding:68px 0}}
.section-head{display:flex;flex-direction:column;gap:10px;margin-bottom:28px}
.section-head h2,.h2{
  font-size:clamp(1.5rem,3vw,2.05rem);line-height:1.28;font-weight:700;letter-spacing:-.005em;
}
.section-head p{color:var(--text-mute);font-size:15.5px;max-width:46em}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--primary);
}
.eyebrow::before{content:"";width:22px;height:1px;background:rgba(45,212,192,.6)}

/* ============ 核对要点 ============ */
.checkpoints{
  display:grid;grid-template-columns:1fr;gap:16px;
  padding:22px 0 0;
  border-top:1px solid var(--line);
}
@media (min-width:640px){.checkpoints{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.checkpoints{grid-template-columns:repeat(4,1fr)}}
.checkpoint{display:flex;gap:12px;align-items:flex-start}
.checkpoint .dot{
  flex:0 0 30px;width:30px;height:30px;border-radius:50%;
  border:1px solid rgba(45,212,192,.5);background:rgba(45,212,192,.1);
  display:grid;place-items:center;margin-top:4px;
  font-family:var(--font-mono);font-size:12.5px;color:var(--primary);font-weight:700;
}
.checkpoint h3{font-size:15px;font-weight:600;line-height:1.5;margin-bottom:2px}
.checkpoint p{font-size:13.5px;color:var(--text-mute);line-height:1.7}

/* ============ 两栏布局 ============ */
.layout{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:1024px){
  .layout{grid-template-columns:296px minmax(0,1fr);gap:40px;align-items:start}
}
.sidebar{display:flex;flex-direction:column;gap:20px}
@media (min-width:1024px){.sidebar{position:sticky;top:92px}}
.side-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px;box-shadow:var(--shadow-card);
}
.side-card h3{
  font-size:14px;font-weight:600;color:var(--text);margin-bottom:12px;
  display:flex;align-items:center;gap:8px;
}
.side-card h3::before{
  content:"";width:3px;height:14px;border-radius:2px;background:var(--primary);
}
.side-list{display:flex;flex-direction:column;gap:4px}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  min-height:44px;padding:0 12px;border-radius:10px;
  font-size:14px;color:var(--text-mute);border:1px solid transparent;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
}
.side-list a:hover{background:var(--glass);color:var(--text);transform:translateX(2px)}
.side-list a.is-current{
  background:var(--primary);color:#04110F;font-weight:600;border-color:transparent;
}
.side-list a.is-current:hover{transform:none}
.side-list .count{font-family:var(--font-mono);font-size:12px;opacity:.7}
.side-card p.note{font-size:13.5px;color:var(--text-mute);line-height:1.75;margin-bottom:14px}
.side-meta{display:flex;flex-direction:column;gap:10px;font-size:13.5px;color:var(--text-mute)}
.side-meta li{display:flex;gap:8px;align-items:flex-start;line-height:1.7}
.side-meta li span:first-child{color:var(--primary);font-family:var(--font-mono);font-size:12.5px;min-width:52px}

/* ============ 筛选行 ============ */
.filter-row{
  display:flex;gap:10px;overflow-x:auto;padding-bottom:6px;margin-bottom:24px;
  scrollbar-width:thin;
}
.filter-row::-webkit-scrollbar{height:6px}
.filter-row::-webkit-scrollbar-thumb{background:rgba(255,255,255,.12);border-radius:999px}

/* ============ 入口卡片 ============ */
.entry-grid{display:grid;grid-template-columns:1fr;gap:22px}
@media (min-width:900px){
  .entry-grid{grid-template-columns:1.15fr 1fr;gap:26px;align-items:start}
}
.entry-card{
  position:relative;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px;box-shadow:var(--shadow-card);
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.entry-card:hover{
  transform:translateY(-4px);
  border-color:rgba(45,212,192,.4);
  box-shadow:0 26px 54px -30px rgba(0,0,0,.9), inset 0 1px 0 rgba(255,255,255,.06);
}
.entry-card.is-plain{background:var(--panel-2)}
.entry-media{
  border-radius:var(--r-sm);overflow:hidden;margin-bottom:16px;position:relative;
  background:linear-gradient(135deg, rgba(45,212,192,.12), rgba(109,123,255,.1));
}
.entry-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  transition:transform .34s var(--ease);
}
.entry-card:hover .entry-media img{transform:scale(1.03)}
.entry-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(5,11,20,0) 46%, rgba(5,11,20,.62) 100%);
}
.entry-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}
.entry-date{font-family:var(--font-mono);font-size:12.5px;color:var(--text-mute)}
.entry-card h3{
  font-size:1.12rem;line-height:1.45;font-weight:600;margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.entry-card h3 a{transition:color .22s var(--ease)}
.entry-card h3 a:hover{color:var(--primary)}
.entry-desc{
  font-size:14px;line-height:1.75;color:var(--text-mute);margin-bottom:14px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.entry-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:12px;border-top:1px solid var(--line);
}
.entry-cat{font-size:13px;color:var(--text-mute)}
.read-link{
  display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;color:var(--primary);
  min-height:44px;
  transition:gap .22s var(--ease),color .22s var(--ease);
}
.read-link:hover{gap:10px;color:var(--primary-hi)}

/* ============ 分页 & 空态 ============ */
.pager{
  display:flex;align-items:center;justify-content:center;gap:10px;flex-wrap:wrap;
  margin-top:34px;
}
.pager a,.pager span{
  min-width:44px;height:44px;padding:0 12px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;background:var(--glass);border:1px solid var(--glass-brd);
  font-size:14px;color:var(--text-mute);
  transition:color .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
}
.pager a:hover{color:var(--primary);border-color:rgba(45,212,192,.5)}
.pager .is-current{background:var(--primary);color:#04110F;font-weight:700;border-color:transparent}

.empty-state{
  margin-top:28px;
  border:1px dashed var(--glass-brd);border-radius:var(--r-card);
  background:rgba(255,255,255,.03);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  padding:28px 22px;text-align:center;
  display:flex;flex-direction:column;align-items:center;gap:12px;
}
@supports not ((backdrop-filter: blur(4px)) or (-webkit-backdrop-filter: blur(4px))){
  .empty-state{background:var(--panel)}
}
.empty-state .empty-icon{
  width:44px;height:44px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--glass-brd);background:var(--glass);color:var(--primary);
}
.empty-state h3{font-size:15px;font-weight:600}
.empty-state p{font-size:13.5px;color:var(--text-mute);max-width:34em}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:1fr;gap:26px}
@media (min-width:1024px){.faq-wrap{grid-template-columns:4fr 6fr;gap:48px;align-items:start}}
.faq-intro h2{font-size:clamp(1.5rem,3vw,2rem);line-height:1.3;font-weight:700;margin-bottom:12px}
.faq-intro p{color:var(--text-mute);font-size:15px;margin-bottom:20px;max-width:30em}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);border-radius:var(--r-sm);
  padding:4px 18px;
  transition:background .24s var(--ease),border-color .24s var(--ease);
}
@supports not ((backdrop-filter: blur(4px)) or (-webkit-backdrop-filter: blur(4px))){
  .faq-item{background:var(--panel)}
}
.faq-item[open]{background:rgba(255,255,255,.06);border-color:rgba(45,212,192,.32)}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:60px;padding:14px 0 14px 12px;
  font-size:15.5px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:3px;border-radius:2px;
  background:var(--primary);opacity:0;transition:opacity .24s var(--ease);
}
.faq-item[open] summary::before{opacity:1}
.faq-item summary .plus{
  flex:0 0 22px;width:22px;height:22px;position:relative;color:var(--primary);
  transition:transform .24s var(--ease);
}
.faq-item summary .plus::before,
.faq-item summary .plus::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
}
.faq-item summary .plus::before{left:0;right:0;top:10px;height:2px}
.faq-item summary .plus::after{top:0;bottom:0;left:10px;width:2px}
.faq-item[open] summary .plus{transform:rotate(45deg)}
.faq-answer{padding:0 0 18px 12px;font-size:15px;line-height:1.8;color:var(--text-mute)}
.faq-answer p{margin-bottom:8px}
.faq-answer p:last-child{margin-bottom:0}

/* ============ CTA 条 ============ */
.cta-bar-wrap{padding:0 0 72px}
@media (min-width:768px){.cta-bar-wrap{padding:0 0 96px}}
.cta-bar{
  position:relative;overflow:hidden;
  border:1px solid var(--glass-brd);border-radius:20px;
  padding:28px 24px;
  display:flex;flex-direction:column;gap:20px;
  background-image:
    linear-gradient(90deg, rgba(3,7,14,.94) 0%, rgba(3,7,14,.8) 58%, rgba(3,7,14,.55) 100%),
    url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  box-shadow:var(--shadow-card);
}
@media (min-width:768px){
  .cta-bar{flex-direction:row;align-items:center;justify-content:space-between;gap:36px;padding:34px 36px}
}
.cta-bar h2{
  font-size:clamp(1.35rem,2.6vw,1.85rem);line-height:1.3;font-weight:700;margin-bottom:8px;
}
.cta-bar p{font-size:15px;color:var(--text-mute);max-width:40em}
.cta-bar .cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg-deep);
  border-top:1px solid var(--line);
  padding:56px 0 28px;
}
.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:40px}}
.footer-brand .brand{margin-bottom:14px}
.footer-brand p{font-size:14px;color:var(--text-mute);line-height:1.75;max-width:24em}
.footer-col h4{
  font-size:14px;font-weight:600;color:var(--text);margin-bottom:14px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col span{
  font-size:14px;color:var(--text-mute);
  transition:color .22s var(--ease),transform .22s var(--ease);
}
.footer-col a{display:inline-block}
.footer-col a:hover{color:var(--primary);transform:translateX(2px)}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-direction:column;gap:12px;
  font-size:13px;color:var(--text-mute);
}
@media (min-width:768px){.footer-bottom{flex-direction:row;align-items:center;justify-content:space-between}}
.footer-bottom a{
  color:var(--text-mute);margin-right:16px;
  transition:color .22s var(--ease);
}
.footer-bottom a:hover{color:var(--primary)}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .32s var(--ease),transform .32s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition-duration:.01ms !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --bg:#050B14;
  --bg-deep:#03070E;
  --panel:#0B1420;
  --panel-2:#0F1B2A;
  --primary:#2DD4C0;
  --primary-hi:#4BE3D1;
  --primary-lo:#17B4A4;
  --secondary:#6D7BFF;
  --warm:#FFB25E;
  --text:#E9F0F8;
  --text-mute:#94A6BD;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.05);
  --glass-brd:rgba(255,255,255,.12);
  --radius:16px;
  --radius-sm:12px;
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --ease:cubic-bezier(.22,.61,.36,1);
}

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

html{scroll-behavior:smooth;scroll-padding-top:96px;}

html body{
  margin:0;
  padding:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img{max-width:100%;display:block;}

a{color:inherit;text-decoration:none;}

h1,h2,h3,h4{margin:0;color:var(--text);}

p{margin:0;}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:768px){
  .container{padding:0 32px;}
}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:60;
  height:72px;
  background:rgba(5,11,20,.35);
  backdrop-filter:blur(16px) saturate(120%);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  border-bottom:1px solid var(--glass-brd);
  box-shadow:0 10px 30px -20px #000;
  transition:height .28s var(--ease),background .28s var(--ease),border-color .28s var(--ease);
}
.site-header.is-scrolled{
  height:60px;
  background:rgba(5,11,20,.88);
  border-bottom-color:rgba(255,255,255,.16);
}
.nav-wrap{
  height:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.brand-mark{
  width:36px;height:36px;
  display:grid;place-items:center;
  border-radius:10px;
  background:linear-gradient(135deg,rgba(45,212,192,.2),rgba(109,123,255,.14));
  border:1px solid var(--glass-brd);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.brand-text{
  font-size:15px;
  font-weight:700;
  letter-spacing:.02em;
  color:var(--text);
  white-space:nowrap;
}
@media (max-width:359px){
  .brand-text{font-size:13px;}
}

.nav-links{display:none;}
@media (min-width:1024px){
  .nav-links{
    display:flex;
    align-items:center;
    gap:28px;
  }
}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:6px 2px;
  font-size:15px;
  color:var(--text);
  transition:color .24s var(--ease);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:50%;bottom:-4px;
  width:0;height:2px;
  border-radius:2px;
  background:var(--primary);
  transform:translateX(-50%);
  transition:width .26s var(--ease);
}
.nav-links a:hover{color:var(--primary);}
.nav-links a:hover::after{width:16px;}
.nav-links a[aria-current="page"]{color:var(--primary);}
.nav-links a[aria-current="page"]::after{width:16px;}

.nav-actions{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.icon-btn{
  width:44px;height:44px;
  display:inline-grid;
  place-items:center;
  border-radius:12px;
  border:1px solid var(--glass-brd);
  background:rgba(255,255,255,.04);
  color:var(--text);
  cursor:pointer;
  transition:border-color .24s var(--ease),color .24s var(--ease),background .24s var(--ease);
}
.icon-btn:hover{
  border-color:rgba(45,212,192,.6);
  color:var(--primary);
  background:rgba(45,212,192,.08);
}
.search-wrap{display:none;align-items:center;gap:8px;}
@media (min-width:640px){
  .search-wrap{display:inline-flex;}
}
.search-field{
  width:0;
  overflow:hidden;
  transition:width .28s var(--ease);
}
.site-header.search-open .search-field{width:210px;}
.search-input{
  width:210px;
  height:42px;
  border-radius:12px;
  border:1px solid var(--glass-brd);
  background:rgba(255,255,255,.05);
  color:var(--text);
  padding:0 14px;
  font-size:14px;
  font-family:var(--font);
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.search-input::placeholder{color:rgba(148,166,189,.75);}
.search-input:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(45,212,192,.18);
}
.menu-toggle{display:inline-grid;}
@media (min-width:1024px){
  .menu-toggle{display:none;}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 24px;
  border-radius:12px;
  border:1px solid transparent;
  font-family:var(--font);
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease),color .24s var(--ease),filter .24s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-lo));
  color:#04110F;
  box-shadow:0 8px 28px -6px rgba(45,212,192,.45);
}
.btn-primary:hover{
  filter:brightness(1.08);
  transform:translateY(-2px);
  box-shadow:0 10px 34px -6px rgba(45,212,192,.5);
}
.btn-primary:active{
  transform:translateY(1px);
  box-shadow:none;
}
.btn-primary:disabled{opacity:.4;box-shadow:none;cursor:not-allowed;}
.btn-ghost{
  background:transparent;
  border-color:var(--glass-brd);
  color:var(--text);
}
.btn-ghost:hover{
  border-color:rgba(45,212,192,.6);
  color:var(--primary);
  transform:translateY(-2px);
}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{min-height:42px;padding:0 18px;font-size:14px;}
@media (max-width:639px){
  .hide-sm{display:none;}
}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:2px;
}

/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;
  inset:0;
  z-index:85;
  background:rgba(3,7,14,.62);
  backdrop-filter:blur(2px);
}
.drawer{
  position:fixed;
  top:0;right:0;
  z-index:90;
  width:82vw;
  max-width:360px;
  height:100%;
  padding:20px 20px 32px;
  display:flex;
  flex-direction:column;
  gap:18px;
  overflow-y:auto;
  background:rgba(5,11,20,.94);
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
  border-left:1px solid var(--glass-brd);
  transform:translateX(102%);
  transition:transform .3s var(--ease);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-bottom:16px;
  border-bottom:1px solid var(--line);
}
.drawer-nav{
  display:flex;
  flex-direction:column;
  gap:4px;
}
.drawer-nav a{
  display:block;
  padding:14px 12px;
  border-radius:12px;
  font-size:15.5px;
  color:var(--text);
  transition:background .24s var(--ease),color .24s var(--ease);
}
.drawer-nav a:hover{background:var(--glass);color:var(--primary);}
.drawer-nav a[aria-current="page"]{
  background:rgba(45,212,192,.12);
  color:var(--primary);
  box-shadow:inset 3px 0 0 var(--primary);
}
.drawer-cta{width:100%;margin-top:auto;}
@media (min-width:1024px){
  .drawer,.drawer-mask{display:none !important;}
}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:132px 0 84px;
  overflow:hidden;
  background:var(--bg);
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  opacity:.4;
}
.hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    radial-gradient(620px 340px at 16% 18%, rgba(45,212,192,.10), transparent 70%),
    radial-gradient(540px 300px at 86% 10%, rgba(109,123,255,.09), transparent 72%),
    repeating-linear-gradient(0deg, rgba(255,255,255,.03) 0 1px, transparent 1px 40px),
    repeating-linear-gradient(90deg, rgba(255,255,255,.03) 0 1px, transparent 1px 40px),
    linear-gradient(180deg, rgba(5,11,20,.4) 0%, rgba(5,11,20,.82) 60%, var(--bg) 100%);
}
.hero-inner{position:relative;z-index:2;}

.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:center;
  gap:8px;
  margin-bottom:24px;
  font-size:13.5px;
  color:var(--text-mute);
}
.breadcrumb a{color:var(--text-mute);transition:color .24s var(--ease);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:var(--text);}

.hero-figure{
  position:relative;
  margin:0;
  border-radius:20px;
  overflow:hidden;
  aspect-ratio:16/6;
  border:1px solid var(--glass-brd);
  box-shadow:0 18px 40px -26px rgba(0,0,0,.9), inset 0 1px 0 rgba(255,255,255,.06);
}
.hero-figure img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.hero-figure::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(5,11,20,.12),rgba(5,11,20,.6));
}
@media (max-width:639px){
  .hero-figure{aspect-ratio:16/10;}
}

.hero-panel{
  position:relative;
  z-index:3;
  max-width:900px;
  margin:-24px auto 0;
  padding:30px 24px 26px;
  text-align:center;
  border-radius:var(--radius);
  background:rgba(11,20,32,.78);
  backdrop-filter:blur(16px) saturate(120%);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  border:1px solid var(--glass-brd);
  box-shadow:0 18px 40px -26px rgba(0,0,0,.9), inset 0 1px 0 rgba(255,255,255,.06);
}
@media (min-width:768px){
  .hero-panel{padding:36px 40px 32px;}
}
.hero-panel h1{
  font-size:clamp(1.6rem,3.9vw,2.6rem);
  line-height:1.22;
  font-weight:800;
  letter-spacing:-.01em;
}
.hero-lead{
  margin:16px auto 0;
  max-width:34em;
  font-size:16px;
  color:var(--text-mute);
}
.hero-actions{
  margin-top:26px;
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  justify-content:center;
}
.hero-meta{
  margin-top:22px;
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  justify-content:center;
}

.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 13px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.01em;
  background:rgba(45,212,192,.16);
  border:1px solid rgba(45,212,192,.28);
  color:var(--primary);
}
.chip-warm{
  background:rgba(255,178,94,.14);
  border-color:rgba(255,178,94,.32);
  color:var(--warm);
}
.chip-plain{
  background:var(--glass);
  border-color:var(--glass-brd);
  color:var(--text-mute);
  font-weight:500;
}

/* ---------- 通用板块 ---------- */
.section{padding:76px 0;position:relative;}
@media (min-width:768px){
  .section{padding:100px 0;}
}
.section-alt{
  background:var(--panel);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.section-head{
  max-width:760px;
  margin:0 auto 44px;
  text-align:center;
}
.section-head h2{
  margin-top:14px;
  font-size:clamp(1.45rem,3.2vw,2rem);
  line-height:1.3;
  font-weight:700;
}
.section-head p{
  margin-top:12px;
  color:var(--text-mute);
  font-size:15.5px;
}
.section-head-left{
  max-width:640px;
  margin:0 0 36px;
  text-align:left;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 12px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:600;
  color:var(--primary);
  background:rgba(45,212,192,.12);
  border:1px solid rgba(45,212,192,.24);
}

/* ---------- 准备事项 ---------- */
.prep-grid{
  display:grid;
  gap:32px;
  align-items:start;
}
@media (min-width:1024px){
  .prep-grid{grid-template-columns:5fr 7fr;gap:48px;}
}
.prep-media{
  border-radius:var(--radius-sm);
  overflow:hidden;
  aspect-ratio:16/11;
  border:1px solid var(--glass-brd);
  box-shadow:0 18px 40px -26px rgba(0,0,0,.85);
  margin-bottom:24px;
}
.prep-media img{width:100%;height:100%;object-fit:cover;}
.prep-copy h2{
  font-size:clamp(1.4rem,3vw,1.85rem);
  line-height:1.3;
  font-weight:700;
}
.prep-copy p{
  margin-top:14px;
  max-width:46em;
  color:var(--text-mute);
  font-size:15.5px;
}
.prep-copy .btn{margin-top:24px;}

.prep-list{
  display:grid;
  gap:16px;
}
.prep-item{
  display:flex;
  gap:16px;
  padding:22px;
  border-radius:var(--radius);
  background:var(--panel);
  border:1px solid var(--line);
  box-shadow:0 18px 40px -26px rgba(0,0,0,.85), inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .28s var(--ease),border-color .28s var(--ease);
}
.prep-item:hover{
  transform:translateY(-4px);
  border-color:rgba(45,212,192,.4);
}
.prep-num{
  flex:0 0 auto;
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:999px;
  border:1px solid rgba(45,212,192,.45);
  color:var(--primary);
  font-family:var(--mono);
  font-size:13.5px;
  font-weight:700;
}
.prep-item h3{
  font-size:1.05rem;
  font-weight:600;
  line-height:1.5;
}
.prep-item p{
  margin-top:6px;
  color:var(--text-mute);
  font-size:14.5px;
  line-height:1.75;
}

/* ---------- 四步流程 ---------- */
.steps-row{
  display:grid;
  gap:20px;
}
@media (min-width:1024px){
  .steps-row{grid-template-columns:repeat(4,1fr);gap:28px;}
}
.step{
  position:relative;
  padding:26px 22px;
  border-radius:var(--radius);
  background:linear-gradient(180deg,var(--panel-2),var(--panel));
  border:1px solid var(--line);
  box-shadow:0 18px 40px -26px rgba(0,0,0,.85), inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .28s var(--ease),border-color .28s var(--ease);
}
.step:hover{
  transform:translateY(-4px);
  border-color:rgba(45,212,192,.4);
}
.step-num{
  display:block;
  font-family:var(--mono);
  font-size:2.5rem;
  font-weight:700;
  line-height:1;
  color:transparent;
  -webkit-text-stroke:1px rgba(45,212,192,.6);
  margin-bottom:16px;
}
.step h3{
  font-size:1.08rem;
  font-weight:600;
  line-height:1.5;
}
.step p{
  margin-top:8px;
  color:var(--text-mute);
  font-size:14.5px;
  line-height:1.75;
}
@media (min-width:1024px){
  .step:not(:last-child)::after{
    content:"";
    position:absolute;
    top:52px;
    right:-22px;
    width:16px;
    height:2px;
    border-radius:2px;
    background:linear-gradient(90deg,rgba(45,212,192,.6),rgba(45,212,192,0));
  }
}

/* ---------- 三类渠道 ---------- */
.grid-3{
  display:grid;
  gap:24px;
}
@media (min-width:640px){
  .grid-3{grid-template-columns:repeat(2,1fr);}
}
@media (min-width:1024px){
  .grid-3{grid-template-columns:repeat(3,1fr);}
}
.channel-card{
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:26px;
  border-radius:var(--radius);
  background:var(--panel);
  border:1px solid var(--line);
  box-shadow:0 18px 40px -26px rgba(0,0,0,.85), inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .28s var(--ease),border-color .28s var(--ease);
}
.channel-card:hover{
  transform:translateY(-4px);
  border-color:rgba(45,212,192,.4);
}
.channel-ico{
  width:46px;height:46px;
  display:grid;place-items:center;
  border-radius:var(--radius-sm);
  background:rgba(45,212,192,.12);
  border:1px solid rgba(45,212,192,.26);
  color:var(--primary);
}
.channel-card h3{
  font-size:1.15rem;
  font-weight:600;
  line-height:1.45;
}
.channel-card p{
  color:var(--text-mute);
  font-size:14.5px;
  line-height:1.75;
}
.channel-link{
  margin-top:auto;
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding-top:8px;
  color:var(--primary);
  font-size:14px;
  font-weight:600;
  transition:gap .24s var(--ease),color .24s var(--ease);
}
.channel-link:hover{gap:11px;color:var(--primary-hi);}

/* ---------- 进度与状态 ---------- */
.status-panel{
  padding:28px;
  border-radius:var(--radius);
  background:var(--panel);
  border:1px solid var(--line);
  box-shadow:0 18px 40px -26px rgba(0,0,0,.85), inset 0 1px 0 rgba(255,255,255,.06);
}
.status-panel h3{
  font-size:1.12rem;
  font-weight:600;
}
.status-panel .status-note{
  margin-top:8px;
  color:var(--text-mute);
  font-size:14.5px;
}
.progress-track{
  margin-top:22px;
  height:8px;
  border-radius:999px;
  background:rgba(255,255,255,.07);
  overflow:hidden;
}
.progress-bar{
  height:100%;
  width:74%;
  border-radius:999px;
  background:linear-gradient(90deg,var(--primary),var(--secondary));
}
.status-row{
  margin-top:22px;
  display:grid;
  gap:14px;
  grid-template-columns:repeat(2,1fr);
}
@media (min-width:768px){
  .status-row{grid-template-columns:repeat(4,1fr);}
}
.status-node{
  padding:16px;
  border-radius:var(--radius-sm);
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
}
.status-node .dot{
  display:inline-block;
  width:8px;height:8px;
  border-radius:999px;
  background:var(--primary);
  box-shadow:0 0 0 4px rgba(45,212,192,.14);
}
.status-node .dot.pending{
  background:rgba(148,166,189,.6);
  box-shadow:0 0 0 4px rgba(148,166,189,.1);
}
.status-node strong{
  display:block;
  margin-top:10px;
  font-size:14.5px;
  font-weight:600;
}
.status-node span.desc{
  display:block;
  margin-top:4px;
  font-size:13.5px;
  color:var(--text-mute);
  line-height:1.7;
}

.area-block{margin-top:32px;}
.area-block h4{
  font-size:14px;
  font-weight:600;
  color:var(--text);
  margin-bottom:14px;
}
.area-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.area-tag{
  padding:9px 16px;
  border-radius:999px;
  background:var(--glass);
  border:1px solid var(--glass-brd);
  color:var(--text-mute);
  font-size:13.5px;
  transition:border-color .24s var(--ease),color .24s var(--ease);
}
.area-tag:hover{border-color:rgba(45,212,192,.5);color:var(--primary);}

/* ---------- FAQ ---------- */
.faq-wrap{
  max-width:860px;
  margin:0 auto;
}
.faq-item{
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  background:rgba(255,255,255,.03);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .24s var(--ease);
}
.faq-item:hover{border-color:var(--glass-brd);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:18px 20px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-size:15.5px;
  font-weight:600;
  color:var(--text);
  transition:background .24s var(--ease),box-shadow .24s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  flex:0 0 auto;
  width:22px;height:22px;
  display:grid;place-items:center;
  color:var(--primary);
  font-size:18px;
  line-height:1;
  transition:transform .2s var(--ease);
}
.faq-item[open] summary{
  background:var(--glass);
  box-shadow:inset 3px 0 0 var(--primary);
}
.faq-item[open] .faq-icon{transform:rotate(45deg);}
.faq-body{
  padding:0 20px 20px;
  color:var(--text-mute);
  font-size:15px;
  line-height:1.8;
}

/* ---------- CTA 横条 ---------- */
.cta-band{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:38px 30px;
  border-radius:20px;
  border:1px solid var(--glass-brd);
  background-image:
    linear-gradient(120deg,rgba(5,11,20,.88),rgba(5,11,20,.94)),
    url('/assets/images/backpic/back-3.webp');
  background-size:cover;
  background-position:center;
  box-shadow:0 18px 40px -26px rgba(0,0,0,.9), inset 0 1px 0 rgba(255,255,255,.06);
}
@media (min-width:768px){
  .cta-band{padding:44px 44px;}
}
.cta-band h2{
  font-size:clamp(1.3rem,2.8vw,1.7rem);
  line-height:1.35;
  font-weight:700;
}
.cta-band p{
  margin-top:10px;
  max-width:40em;
  color:var(--text-mute);
  font-size:15px;
}
.cta-band .cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:84px;
  padding:64px 0 28px;
  background:var(--bg-deep);
  border-top:1px solid var(--line);
}
.footer-grid{
  display:grid;
  gap:36px;
}
@media (min-width:768px){
  .footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.3fr;}
}
.footer-brand p{
  margin-top:16px;
  max-width:34ch;
  color:var(--text-mute);
  font-size:14px;
  line-height:1.85;
}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  color:var(--text);
  margin-bottom:16px;
}
.footer-col ul{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:11px;
}
.footer-col a,.footer-col span{
  display:inline-block;
  color:var(--text-mute);
  font-size:14px;
  line-height:1.7;
  transition:color .24s var(--ease),transform .24s var(--ease);
}
.footer-col a:hover{
  color:var(--primary);
  transform:translateX(2px);
}
.footer-bottom{
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  align-items:center;
  justify-content:space-between;
  color:var(--text-mute);
  font-size:13px;
}
.footer-bottom a{
  color:var(--text-mute);
  margin-right:16px;
  transition:color .24s var(--ease);
}
.footer-bottom a:hover{color:var(--primary);}

/* ---------- 进入视口动效 ---------- */
html.js .reveal{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .6s var(--ease),transform .6s var(--ease);
}
html.js .reveal.is-visible{
  opacity:1;
  transform:none;
}
@media (prefers-reduced-motion:reduce){
  html.js .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
}

@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){
  .site-header{background:rgba(5,11,20,.95);}
  .hero-panel,.drawer{background:var(--panel);}
}