/* roulang page: index */
:root{
  --ink-950:#05070F;
  --ink-900:#0A1020;
  --ink-800:#111A2E;
  --surface:#141E33;
  --glass:rgba(255,255,255,.045);
  --line:rgba(255,255,255,.09);
  --line-2:rgba(255,255,255,.16);
  --star:#2FD3C4;
  --nebula:#6C8CFF;
  --amber:#FFB454;
  --ok:#3DD68C;
  --err:#FF6B6B;
  --t1:#E9EFFA;
  --t2:#A3B0C9;
  --t3:#6C7A93;
  --grad-cta:linear-gradient(135deg,#2FD3C4 0%,#6C8CFF 100%);
  --r-card:16px;
  --r-panel:22px;
  --r-btn:12px;
  --shadow-card:0 10px 30px rgba(0,0,0,.38);
  --ease:cubic-bezier(.4,0,.2,1);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter","DIN Alternate","Helvetica Neue",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--t2);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5{color:var(--t1);font-weight:700;margin:0;line-height:1.35;}
p{margin:0;}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease),border-color .22s var(--ease);}
img{max-width:100%;display:block;border:0;}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
input,textarea,select{font-family:inherit;font-size:15px;}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;}
::selection{background:rgba(47,211,196,.28);color:#fff;}
.grid-container{width:100%;max-width:1240px;margin:0 auto;padding-left:24px;padding-right:24px;}
@media (max-width:1280px){.grid-container{max-width:1140px;}}
@media (max-width:768px){.grid-container{padding-left:16px;padding-right:16px;}}

/* ============ 通用按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.2px;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:var(--grad-cta);color:#04121A;
  box-shadow:0 8px 24px rgba(47,211,196,.28);
}
.btn-primary:hover{filter:brightness(1.06);box-shadow:0 10px 34px rgba(47,211,196,.42);transform:translateY(-1px);color:#04121A;}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 14px rgba(47,211,196,.28);}
.btn-ghost{
  background:transparent;color:var(--t1);border:1px solid var(--line-2);
}
.btn-ghost:hover{border-color:var(--star);color:var(--star);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}
.btn:focus-visible,.link-arrow:focus-visible,a:focus-visible,button:focus-visible{
  outline:2px solid var(--star);outline-offset:3px;
}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;color:var(--star);
  font-size:14px;font-weight:600;
}
.link-arrow svg{transition:transform .22s var(--ease);}
.link-arrow:hover svg{transform:translateX(3px);}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(10,16,32,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:background .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header.scrolled{background:rgba(10,16,32,.93);box-shadow:0 8px 28px rgba(0,0,0,.42);}
.topbar-inner{display:flex;align-items:center;gap:24px;height:74px;transition:height .25s var(--ease);}
.site-header.scrolled .topbar-inner{height:56px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(150deg,rgba(47,211,196,.22),rgba(108,140,255,.2));
  border:1px solid var(--line-2);flex-shrink:0;
}
.brand-mark svg{width:18px;height:18px;stroke:var(--star);fill:none;stroke-width:1.5;}
.brand-text{color:var(--t1);font-size:17px;font-weight:700;letter-spacing:.3px;white-space:nowrap;}
.header-search{
  flex:1;max-width:420px;position:relative;display:flex;align-items:center;
  height:40px;border-radius:999px;background:var(--glass);
  border:1px solid var(--line);transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.header-search:focus-within{border-color:var(--star);box-shadow:0 0 0 3px rgba(47,211,196,.15);}
.header-search input{
  flex:1;height:100%;background:transparent;border:0;outline:none;color:var(--t1);
  padding:0 12px 0 40px;font-size:14px;border-radius:999px;
}
.header-search input::placeholder{color:var(--t3);}
.header-search .search-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);width:16px;height:16px;stroke:var(--t3);fill:none;stroke-width:1.7;}
.header-search button{position:absolute;right:5px;top:5px;height:30px;width:52px;border-radius:999px;background:rgba(47,211,196,.14);color:var(--star);font-size:13px;}
.header-search button:hover{background:rgba(47,211,196,.24);}
.topbar-actions{display:flex;align-items:center;gap:18px;margin-left:auto;flex-shrink:0;}
.link-text{font-size:14px;color:var(--t2);}
.link-text:hover{color:var(--star);}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line-2);
  place-items:center;
}
.nav-toggle svg{width:18px;height:18px;stroke:var(--t1);stroke-width:1.6;fill:none;}

.channel-bar{border-top:1px solid var(--line);}
.channel-inner{display:flex;align-items:center;gap:24px;height:50px;}
.channel-list{display:flex;align-items:center;gap:30px;flex-shrink:0;}
.channel-list a{
  position:relative;display:inline-block;padding:14px 0;font-size:15px;color:var(--t2);font-weight:500;
}
.channel-list a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--grad-cta);opacity:0;transform:scaleX(.5);transition:opacity .22s var(--ease),transform .22s var(--ease);
}
.channel-list a:hover{color:var(--t1);}
.channel-list a.active{color:var(--star);font-weight:600;}
.channel-list a.active::after{opacity:1;transform:scaleX(1);}
.hot-chips{display:flex;align-items:center;gap:10px;margin-left:auto;overflow-x:auto;scrollbar-width:none;}
.hot-chips::-webkit-scrollbar{display:none;}
.hot-chips .chip-label{font-size:12px;color:var(--t3);white-space:nowrap;}
.chip{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;color:var(--t2);background:rgba(108,140,255,.08);
  border:1px solid rgba(108,140,255,.24);white-space:nowrap;
  transition:color .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
}
.chip:hover{color:var(--star);border-color:rgba(47,211,196,.5);background:rgba(47,211,196,.1);}

/* ============ 移动端抽屉 ============ */
.drawer{
  position:fixed;inset:0;z-index:120;display:none;
  background:rgba(5,7,15,.66);backdrop-filter:blur(4px);
}
.drawer.open{display:block;}
.drawer-panel{
  position:absolute;right:0;top:0;bottom:0;width:82%;max-width:340px;
  background:var(--ink-950);border-left:1px solid var(--line);
  padding:22px 20px 32px;display:flex;flex-direction:column;gap:22px;
  overflow-y:auto;
}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line-2);color:var(--t2);font-size:18px;line-height:1;}
.drawer-close:hover{color:var(--star);border-color:var(--star);}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{padding:12px 12px;border-radius:10px;font-size:15px;color:var(--t1);border:1px solid transparent;}
.drawer-nav a:hover{background:var(--surface);border-color:var(--line);}
.drawer-nav a.active{color:var(--star);background:rgba(47,211,196,.08);border-color:rgba(47,211,196,.28);}
.drawer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px;}
.drawer-foot .link-text{font-size:13px;color:var(--t3);}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  padding:92px 0 88px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,7,15,.84) 0%,rgba(5,7,15,.9) 62%,rgba(10,16,32,.96) 100%);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.07;
  background-image:radial-gradient(circle at 18% 22%,#fff 0 1px,transparent 1px),
                   radial-gradient(circle at 72% 38%,#fff 0 1px,transparent 1px),
                   radial-gradient(circle at 44% 76%,#fff 0 1px,transparent 1px),
                   radial-gradient(circle at 88% 82%,#fff 0 1px,transparent 1px);
  background-size:220px 220px,300px 300px,260px 260px,340px 340px;
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;border-radius:999px;
  font-size:12px;color:var(--star);background:rgba(47,211,196,.1);
  border:1px solid rgba(47,211,196,.28);letter-spacing:.4px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--star);}
.hero h1{font-size:44px;line-height:1.25;margin:20px 0 18px;letter-spacing:.2px;}
.hero h1 em{font-style:normal;color:var(--star);}
.hero-sub{font-size:17px;color:var(--t2);max-width:520px;line-height:1.8;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 34px;}
.hero-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;max-width:520px;}
.metric{border-left:2px solid rgba(47,211,196,.42);padding-left:14px;}
.metric b{display:block;font-size:22px;color:var(--t1);font-family:var(--font-num);font-variant-numeric:tabular-nums;line-height:1.3;}
.metric span{display:block;font-size:12px;color:var(--t3);line-height:1.6;margin-top:2px;}

.hero-card{
  position:relative;border-radius:var(--r-panel);padding:22px;
  background:var(--glass);border:1px solid var(--line-2);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:0 18px 50px rgba(0,0,0,.5);
}
.hero-card::before{
  content:"";position:absolute;left:26px;right:26px;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,211,196,.5),transparent);
}
.hero-card-media{border-radius:14px;overflow:hidden;aspect-ratio:16/10;background:var(--ink-800);}
.hero-card-media img{width:100%;height:100%;object-fit:cover;}
.hero-card h3{font-size:17px;margin:18px 0 10px;}
.hero-card .spec-list{display:flex;flex-direction:column;gap:8px;margin-bottom:18px;}
.hero-card .spec-list li{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--t2);padding-bottom:8px;border-bottom:1px dashed rgba(255,255,255,.08);}
.hero-card .spec-list li:last-child{border-bottom:0;padding-bottom:0;}
.hero-card .spec-list span{color:var(--t3);}
.hero-card .spec-list b{color:var(--t1);font-weight:600;font-family:var(--font-num);}

/* ============ 热词条 ============ */
.quickbar{background:var(--ink-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.quickbar-inner{display:flex;align-items:center;gap:14px;padding:18px 0;overflow-x:auto;scrollbar-width:none;}
.quickbar-inner::-webkit-scrollbar{display:none;}
.quickbar-inner .label{font-size:13px;color:var(--t3);white-space:nowrap;flex-shrink:0;}
.quickbar-inner .chip{height:30px;font-size:13px;padding:0 14px;}

/* ============ 板块通用 ============ */
.section{padding:88px 0;}
.section-alt{background:var(--ink-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:38px;}
.section-head h2{font-size:28px;line-height:1.35;margin-top:12px;}
.section-sub{margin-top:10px;font-size:15px;color:var(--t2);max-width:640px;line-height:1.8;}

/* ============ 服务 Bento 网格 ============ */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.svc-card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);overflow:hidden;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.svc-card:hover{transform:translateY(-4px);box-shadow:0 0 0 1px rgba(47,211,196,.35),var(--shadow-card);border-color:rgba(47,211,196,.28);}
.svc-media{aspect-ratio:16/10;overflow:hidden;background:var(--ink-800);display:block;}
.svc-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.svc-card:hover .svc-media img{transform:scale(1.04);}
.svc-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.svc-body h3{font-size:17px;line-height:1.5;font-weight:600;}
.svc-body p{font-size:13.5px;color:var(--t3);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.badge{
  display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:999px;
  font-size:11.5px;color:var(--nebula);background:rgba(108,140,255,.1);
  border:1px solid rgba(108,140,255,.3);letter-spacing:.3px;white-space:nowrap;
}
.badge-star{color:var(--star);background:rgba(47,211,196,.1);border-color:rgba(47,211,196,.32);}
.badge-amber{color:var(--amber);background:rgba(255,180,84,.1);border-color:rgba(255,180,84,.32);}
.svc-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line);}
.price{color:var(--amber);font-weight:700;font-size:15px;font-family:var(--font-num);font-variant-numeric:tabular-nums;}
.price small{font-size:11px;color:var(--t3);font-weight:400;margin-left:4px;font-family:var(--font-cn);}
.btn-mini{
  display:inline-flex;align-items:center;justify-content:center;height:32px;padding:0 14px;
  border-radius:9px;font-size:13px;color:var(--t1);border:1px solid var(--line-2);
  transition:color .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
}
.btn-mini:hover{color:var(--star);border-color:var(--star);background:rgba(47,211,196,.08);}
.bento-lg{grid-column:span 8;}
.bento-md{grid-column:span 4;}
.bento-sm{grid-column:span 4;}
.svc-card--wide{flex-direction:row;}
.svc-card--wide .svc-media{flex:0 0 46%;aspect-ratio:auto;min-height:100%;}
.svc-card--wide .svc-body{padding:26px 26px 24px;justify-content:center;}
.svc-card--wide .svc-body h3{font-size:20px;}
.svc-card--wide .svc-body p{-webkit-line-clamp:3;font-size:14px;}

/* ============ 保障条 ============ */
.guarantee{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding-top:28px;}
.guarantee::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,211,196,.5),transparent);
}
.g-item{display:flex;gap:14px;align-items:flex-start;}
.g-icon{
  width:42px;height:42px;flex-shrink:0;border-radius:12px;display:grid;place-items:center;
  background:rgba(47,211,196,.08);border:1px solid rgba(47,211,196,.24);
}
.g-icon svg{width:20px;height:20px;stroke:var(--star);fill:none;stroke-width:1.5;}
.g-item h4{font-size:14px;font-weight:600;color:var(--t1);}
.g-item p{font-size:12px;color:var(--t3);line-height:1.7;margin-top:3px;}

/* ============ 评价轮播 ============ */
.review-wrap{position:relative;}
.review-track{
  display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding-bottom:6px;scrollbar-width:none;
}
.review-track::-webkit-scrollbar{display:none;}
.review-card{
  flex:0 0 calc((100% - 32px)/3);scroll-snap-align:start;
  background:var(--glass);border:1px solid var(--line-2);border-radius:var(--r-card);
  padding:24px;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  display:flex;flex-direction:column;gap:12px;
}
.stars{display:flex;gap:3px;}
.stars svg{width:15px;height:15px;fill:var(--amber);}
.review-card p{font-size:14px;color:var(--t2);line-height:1.8;}
.review-user{display:flex;align-items:center;gap:10px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line);}
.avatar{
  width:34px;height:34px;border-radius:50%;display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(47,211,196,.22),rgba(108,140,255,.22));
  color:var(--t1);font-size:13px;font-weight:600;flex-shrink:0;
}
.review-user b{display:block;font-size:13.5px;color:var(--t1);font-weight:600;}
.review-user span{display:block;font-size:12px;color:var(--t3);}
.review-nav{display:flex;gap:10px;justify-content:flex-end;margin-top:22px;}
.rev-btn{
  width:38px;height:38px;border-radius:50%;border:1px solid var(--line-2);
  display:grid;place-items:center;color:var(--t2);
  transition:color .22s var(--ease),border-color .22s var(--ease);
}
.rev-btn:hover{color:var(--star);border-color:var(--star);}
.rev-btn svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.7;}

/* ============ 最新信息 ============ */
.news-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:20px;}
.news-card{
  display:flex;flex-direction:column;gap:10px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--shadow-card);min-height:132px;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:0 0 0 1px rgba(47,211,196,.35),var(--shadow-card);border-color:rgba(47,211,196,.28);}
.news-card h3{font-size:17px;line-height:1.5;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card h3 a:hover{color:var(--star);}
.news-card p{font-size:13.5px;color:var(--t3);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:12px;border-top:1px solid var(--line);font-size:12px;color:var(--t3);flex-wrap:wrap;}
.news-meta time{font-family:var(--font-num);font-variant-numeric:tabular-nums;}
.news-lead{grid-column:span 6;padding:0;overflow:hidden;}
.news-lead .lead-media{aspect-ratio:16/9;overflow:hidden;background:var(--ink-800);}
.news-lead .lead-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.news-lead:hover .lead-media img{transform:scale(1.03);}
.news-lead .lead-body{padding:20px 24px 22px;display:flex;flex-direction:column;gap:10px;}
.news-lead h3{font-size:20px;-webkit-line-clamp:2;}
.news-lead p{-webkit-line-clamp:3;font-size:14px;}
.news-side{grid-column:span 3;}
.news-empty{
  grid-column:1 / -1;text-align:center;padding:56px 24px;
  background:var(--surface);border:1px dashed var(--line-2);border-radius:var(--r-card);
}
.news-empty svg{width:34px;height:34px;stroke:var(--t3);fill:none;stroke-width:1.4;margin-bottom:12px;}
.news-empty p{font-size:14px;color:var(--t3);margin-bottom:14px;}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;margin:0 auto;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  overflow:hidden;position:relative;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-item.open{border-color:rgba(47,211,196,.32);box-shadow:0 0 0 1px rgba(47,211,196,.16);}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--star);
  opacity:0;transition:opacity .22s var(--ease);
}
.faq-item.open::before{opacity:1;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 24px;text-align:left;font-size:16px;font-weight:600;color:var(--t2);
  transition:color .22s var(--ease);
}
.faq-item.open .faq-q{color:var(--t1);}
.faq-q svg{width:18px;height:18px;stroke:var(--t3);fill:none;stroke-width:1.6;flex-shrink:0;transition:transform .25s var(--ease),stroke .22s var(--ease);}
.faq-item.open .faq-q svg{transform:rotate(180deg);stroke:var(--star);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
.faq-a p{padding:0 24px 20px;font-size:14.5px;color:var(--t2);line-height:1.85;}

/* ============ 转化 CTA ============ */
.cta-section{padding:88px 0;}
.cta-card{
  position:relative;border-radius:var(--r-panel);overflow:hidden;
  background:var(--glass);border:1px solid var(--line-2);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  padding:48px;
  display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;
}
.cta-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,211,196,.6),rgba(108,140,255,.5),transparent);
}
.cta-card::after{
  content:"";position:absolute;right:-90px;bottom:-120px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(108,140,255,.18),transparent 68%);pointer-events:none;
}
.cta-card h2{font-size:28px;line-height:1.35;}
.cta-card .cta-sub{margin:14px 0 26px;font-size:15px;color:var(--t2);line-height:1.85;}
.cta-points{display:flex;flex-wrap:wrap;gap:10px;}
.cta-points .chip{height:28px;font-size:12.5px;}
.cta-form{position:relative;z-index:2;display:flex;flex-direction:column;gap:14px;}
.field label{display:block;font-size:13px;color:var(--t2);margin-bottom:6px;}
.field input,.field textarea{
  width:100%;border-radius:12px;background:rgba(255,255,255,.04);
  border:1px solid var(--line);color:var(--t1);outline:none;
  padding:0 14px;transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.field input{height:44px;}
.field textarea{height:88px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:var(--t3);}
.field input:focus,.field textarea:focus{border-color:var(--star);box-shadow:0 0 0 3px rgba(47,211,196,.15);}
.form-note{font-size:12.5px;color:var(--ok);min-height:18px;}
.form-note.err{color:var(--err);}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;background:var(--ink-950);
  border-top:1px solid var(--line);padding:60px 0 0;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,211,196,.5),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.45fr .85fr .85fr 1fr;gap:40px;padding-bottom:48px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:13.5px;color:var(--t3);line-height:1.85;max-width:320px;}
.social-row{display:flex;gap:10px;margin-top:18px;}
.social-row a{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--t3);
}
.social-row a:hover{color:var(--star);border-color:var(--star);}
.social-row svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.6;}
.footer-col h4{font-size:14px;color:var(--t1);font-weight:600;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:13.5px;color:var(--t3);}
.footer-col a:hover{color:var(--star);}
.footer-col li span{font-size:13.5px;color:var(--t3);}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:var(--t3);
}
.footer-bottom .num{font-family:var(--font-num);}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .4s var(--ease),transform .4s var(--ease);}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  .svc-card,.news-card,.btn,.link-arrow svg{transition:none;}
  html{scroll-behavior:auto;}
}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .hero-inner{grid-template-columns:1fr;gap:44px;}
  .hero h1{font-size:40px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .footer-col:last-child{grid-column:1 / -1;}
}
@media (max-width:992px){
  .header-search,.channel-bar,.link-text{display:none;}
  .nav-toggle{display:grid;}
  .topbar-actions{gap:12px;}
  .hero{padding:64px 0 60px;}
  .hero h1{font-size:34px;}
  .section{padding:64px 0;}
  .bento-lg,.bento-md,.bento-sm{grid-column:span 6;}
  .svc-card--wide{flex-direction:column;}
  .svc-card--wide .svc-media{flex:none;aspect-ratio:16/10;min-height:0;}
  .guarantee{grid-template-columns:repeat(2,1fr);gap:26px;}
  .news-lead,.news-side{grid-column:span 12;}
  .news-grid{grid-template-columns:repeat(6,1fr);}
  .news-card{grid-column:span 6;}
  .news-side{grid-column:span 6;}
  .review-card{flex:0 0 calc((100% - 16px)/2);}
  .cta-card{grid-template-columns:1fr;padding:36px 28px;gap:32px;}
}
@media (max-width:768px){
  .hero h1{font-size:30px;line-height:1.3;}
  .hero-sub{font-size:15px;}
  .hero-metrics{grid-template-columns:repeat(3,1fr);gap:12px;}
  .metric b{font-size:19px;}
  .section{padding:56px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px;}
  .section-head h2{font-size:22px;}
  .cta-card h2{font-size:22px;}
  .bento-lg,.bento-md,.bento-sm{grid-column:span 12;}
  .news-grid{grid-template-columns:1fr;}
  .news-card,.news-side,.news-lead{grid-column:span 1;}
  .review-card{flex:0 0 100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-brand{grid-column:1 / -1;}
  .footer-col:last-child{grid-column:1 / -1;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .brand-text{font-size:15px;}
}
@media (max-width:520px){
  .hero h1{font-size:26px;}
  .hero-actions .btn{width:100%;}
  .header-search{display:none;}
  .guarantee{grid-template-columns:1fr;}
  .cta-card{padding:28px 20px;}
  .footer-grid{grid-template-columns:1fr;}
  .faq-q{padding:16px 18px;font-size:15px;}
  .faq-a p{padding:0 18px 18px;}
}

/* roulang page: article */
:root{
  --ink-950:#05070F;
  --ink-900:#0A1020;
  --ink-800:#111A2E;
  --surface:#141E33;
  --glass:rgba(255,255,255,0.045);
  --line:rgba(255,255,255,0.09);
  --line-2:rgba(255,255,255,0.16);
  --star:#2FD3C4;
  --nebula:#6C8CFF;
  --amber:#FFB454;
  --ok:#3DD68C;
  --err:#FF6B6B;
  --t1:#E9EFFA;
  --t2:#A3B0C9;
  --t3:#6C7A93;
  --grad-cta:linear-gradient(135deg,#2FD3C4 0%,#6C8CFF 100%);
  --radius-card:16px;
  --radius-lg:22px;
  --radius-btn:12px;
  --shadow-card:0 10px 30px rgba(0,0,0,.38);
  --maxw:1240px;
  --ease:cubic-bezier(.4,0,.2,1);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--t2);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    radial-gradient(1px 1px at 12% 18%,rgba(255,255,255,.55) 50%,transparent 51%),
    radial-gradient(1px 1px at 68% 12%,rgba(255,255,255,.4) 50%,transparent 51%),
    radial-gradient(1px 1px at 34% 62%,rgba(255,255,255,.35) 50%,transparent 51%),
    radial-gradient(1px 1px at 82% 48%,rgba(255,255,255,.45) 50%,transparent 51%),
    radial-gradient(1px 1px at 22% 84%,rgba(255,255,255,.3) 50%,transparent 51%);
  opacity:.05;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color 220ms var(--ease)}
a:hover{color:var(--star)}
h1,h2,h3,h4{color:var(--t1);font-weight:700;margin:0;line-height:1.35}
p{margin:0 0 18px}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
input,button,select,textarea{font-family:inherit;font-size:15px}
:focus-visible{outline:2px solid var(--star);outline-offset:2px}
.num,time,.stat-num,.price{font-family:"Inter","DIN Alternate",sans-serif;font-variant-numeric:tabular-nums}
.grid-container{max-width:var(--maxw);margin:0 auto;padding-left:24px;padding-right:24px;width:100%}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  padding:0 22px;height:46px;
  font-size:15px;font-weight:600;line-height:1;
  transition:all 220ms var(--ease);
  white-space:nowrap;
}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-primary{
  background:var(--grad-cta);color:#04121A;
  box-shadow:0 8px 24px rgba(47,211,196,.28);
}
.btn-primary:hover{color:#04121A;filter:brightness(1.06);box-shadow:0 10px 34px rgba(47,211,196,.42);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 14px rgba(47,211,196,.3)}
.btn-ghost{
  background:transparent;color:var(--t1);border-color:var(--line-2);
}
.btn-ghost:hover{border-color:var(--star);color:var(--star)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;color:var(--star);
  font-weight:600;font-size:14px;background:none;border:0;padding:0;
}
.btn-text svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.8;transition:transform 220ms var(--ease)}
.btn-text:hover svg{transform:translateX(3px)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(10,16,32,.55);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background 260ms var(--ease),border-color 260ms var(--ease);
}
.site-header.scrolled{background:rgba(10,16,32,.86);border-bottom-color:var(--line);backdrop-filter:blur(14px)}
.topbar-inner{display:flex;align-items:center;gap:20px;height:72px;transition:height 260ms var(--ease)}
.site-header.scrolled .topbar-inner{height:56px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(47,211,196,.22),rgba(108,140,255,.22));
  border:1px solid rgba(47,211,196,.32);
}
.brand-mark svg{width:19px;height:19px;fill:var(--star);stroke:none}
.brand-text{color:var(--t1);font-size:18px;font-weight:700;letter-spacing:.2px}
.header-search{
  position:relative;display:flex;align-items:center;flex:1 1 320px;max-width:420px;
  background:var(--glass);border:1px solid var(--line);border-radius:999px;
  height:40px;padding:0 6px 0 38px;
  transition:border-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.header-search:focus-within{border-color:var(--star);box-shadow:0 0 0 3px rgba(47,211,196,.15)}
.header-search .search-icon{
  position:absolute;left:13px;top:50%;transform:translateY(-50%);
  width:17px;height:17px;stroke:var(--t3);fill:none;stroke-width:1.6;
}
.header-search input{
  flex:1;background:none;border:0;color:var(--t1);height:100%;font-size:14px;min-width:0;
}
.header-search input::placeholder{color:var(--t3)}
.header-search input:focus{outline:none}
.header-search button{
  height:30px;padding:0 14px;border-radius:999px;border:0;
  background:rgba(47,211,196,.14);color:var(--star);font-size:13px;font-weight:600;
  transition:background 200ms var(--ease);
}
.header-search button:hover{background:rgba(47,211,196,.26)}
.topbar-actions{display:flex;align-items:center;gap:16px;margin-left:auto}
.link-text{font-size:14px;color:var(--t2);white-space:nowrap}
.link-text:hover{color:var(--star)}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:11px;
  border:1px solid var(--line-2);background:transparent;
  align-items:center;justify-content:center;
}
.nav-toggle svg{width:20px;height:20px;stroke:var(--t1);fill:none;stroke-width:1.6}
.nav-toggle:hover{border-color:var(--star)}
.nav-toggle svg{stroke:var(--t1)}
.channel-bar{border-top:1px solid rgba(255,255,255,.05)}
.channel-inner{display:flex;align-items:center;gap:28px;height:50px}
.channel-list{display:flex;align-items:center;gap:26px}
.channel-list a{
  position:relative;display:inline-block;font-size:15px;color:var(--t2);
  padding:6px 0;font-weight:500;
}
.channel-list a::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;border-radius:2px;
  background:var(--grad-cta);opacity:0;transition:opacity 220ms var(--ease);
}
.channel-list a:hover{color:var(--t1)}
.channel-list a.active{color:var(--star)}
.channel-list a.active::after{opacity:1}
.hot-chips{display:flex;align-items:center;gap:10px;margin-left:auto;overflow-x:auto;scrollbar-width:none}
.hot-chips::-webkit-scrollbar{display:none}
.chip-label{font-size:12px;color:var(--t3);white-space:nowrap}
.chip{
  display:inline-block;padding:4px 12px;border-radius:999px;font-size:12px;color:var(--t2);
  border:1px solid var(--line);background:rgba(255,255,255,.03);white-space:nowrap;
  transition:all 200ms var(--ease);
}
.chip:hover{color:var(--star);border-color:rgba(47,211,196,.5)}

/* ---------- 抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(5,7,15,.7);z-index:90;opacity:0;pointer-events:none;transition:opacity 260ms var(--ease)}
.drawer-mask.open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:320px;max-width:86vw;z-index:95;
  background:var(--ink-800);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform 300ms var(--ease);
  padding:22px 22px 32px;overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{width:34px;height:34px;border-radius:10px;border:1px solid var(--line-2);background:transparent;display:flex;align-items:center;justify-content:center}
.drawer-close svg{width:16px;height:16px;stroke:var(--t1);fill:none;stroke-width:1.8}
.drawer nav a{display:block;padding:12px 0;color:var(--t2);font-size:15px;border-bottom:1px solid var(--line)}
.drawer nav a.active{color:var(--star)}
.drawer .drawer-cta{margin-top:24px;width:100%}
.drawer .drawer-label{font-size:12px;color:var(--t3);margin:22px 0 10px}
.drawer .drawer-chips{display:flex;flex-wrap:wrap;gap:8px}

/* ---------- 文章头 ---------- */
.article-hero{
  position:relative;overflow:hidden;
  background-image:linear-gradient(180deg,rgba(5,7,15,.72),rgba(10,16,32,.96)),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
  padding:34px 0 40px;
}
.breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13px;color:var(--t3);margin-bottom:22px}
.breadcrumb a{color:var(--t3)}
.breadcrumb a:hover{color:var(--star)}
.breadcrumb .sep{color:rgba(255,255,255,.22)}
.breadcrumb .current{color:var(--t2);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:999px;font-size:12.5px;font-weight:600;
  color:var(--star);border:1px solid rgba(47,211,196,.35);background:rgba(47,211,196,.1);
  transition:all 200ms var(--ease);
}
.badge:hover{background:rgba(47,211,196,.2);border-color:var(--star)}
.article-title{font-size:36px;line-height:1.3;margin:16px 0 14px;max-width:900px;letter-spacing:.2px}
.meta-row{display:flex;align-items:center;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--t3);padding-bottom:22px;border-bottom:1px solid var(--line)}
.meta-row .dot{width:3px;height:3px;border-radius:50%;background:var(--t3);display:inline-block}

/* ---------- 正文布局 ---------- */
.article-section{padding:56px 0 72px}
.article-grid{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:40px;align-items:start}
.article-main{min-width:0}
.article-body{max-width:760px;font-size:16px;line-height:1.9;color:var(--t2)}
.article-body h2{
  position:relative;font-size:24px;line-height:1.4;margin:38px 0 14px;padding-left:15px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:3px;border-radius:3px;background:var(--star);
}
.article-body h3{font-size:20px;margin:28px 0 10px;color:var(--t1)}
.article-body h4{font-size:17px;margin:22px 0 8px;color:var(--t1)}
.article-body p{margin:0 0 18px}
.article-body a{color:var(--star);border-bottom:1px solid rgba(47,211,196,.35)}
.article-body a:hover{border-bottom-color:var(--star)}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:8px;padding-left:2px}
.article-body li::marker{color:var(--star);font-size:.9em}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;border-radius:14px;
  background:var(--glass);border-left:3px solid var(--nebula);
  color:var(--t1);font-size:15.5px;line-height:1.9;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:14px;margin:20px 0 8px;width:100%;height:auto}
.article-body figure{margin:22px 0}
.article-body figcaption{font-size:13px;color:var(--t3);text-align:center;margin-top:8px}
.article-body table{
  width:100%;border-collapse:collapse;margin:22px 0;font-size:14.5px;
  border:1px solid var(--line);border-radius:12px;overflow:hidden;
}
.article-body thead th{background:var(--ink-800);color:var(--t1);font-weight:600}
.article-body th,.article-body td{padding:11px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.02)}
.article-body tbody tr:last-child td{border-bottom:0}
.article-body code{
  background:rgba(255,255,255,.07);border-radius:6px;padding:2px 6px;font-size:14px;color:var(--amber);
}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}

/* 空态 */
.empty-box{
  max-width:760px;padding:56px 28px;text-align:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
}
.empty-box svg{width:44px;height:44px;stroke:var(--t3);fill:none;stroke-width:1.4;margin:0 auto 16px}
.empty-box h3{font-size:19px;margin-bottom:10px}
.empty-box p{font-size:14px;color:var(--t3);margin-bottom:22px}

/* ---------- 侧栏 ---------- */
.article-aside{position:sticky;top:150px;display:flex;flex-direction:column;gap:18px}
.aside-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px 20px 22px;box-shadow:var(--shadow-card);
}
.aside-card h3{font-size:15px;color:var(--t1);margin-bottom:14px;display:flex;align-items:center;gap:8px}
.aside-card h3::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--star)}
.toc{display:flex;flex-direction:column;gap:2px;max-height:340px;overflow-y:auto}
.toc a{
  display:block;font-size:13.5px;color:var(--t3);padding:7px 10px;border-radius:8px;
  border-left:2px solid transparent;line-height:1.6;
  transition:all 200ms var(--ease);
}
.toc a:hover{color:var(--t1);background:rgba(255,255,255,.04)}
.toc a.active{color:var(--star);border-left-color:var(--star);background:rgba(47,211,196,.08)}
.aside-cta{
  background:linear-gradient(150deg,rgba(47,211,196,.12),rgba(108,140,255,.12)),var(--surface);
  border:1px solid rgba(47,211,196,.28);border-radius:var(--radius-card);
  padding:22px 20px;box-shadow:var(--shadow-card);
}
.aside-cta h3{font-size:16px;margin-bottom:8px}
.aside-cta p{font-size:13px;color:var(--t2);line-height:1.75;margin-bottom:16px}
.aside-cta .btn{width:100%}
.aside-list{display:flex;flex-direction:column;gap:14px}
.aside-list a{display:flex;gap:12px;align-items:flex-start}
.aside-list img{width:64px;height:48px;border-radius:10px;object-fit:cover;flex:0 0 auto}
.aside-list span{font-size:13.5px;color:var(--t2);line-height:1.6;display:block}
.aside-list a:hover span{color:var(--star)}

/* ---------- 标签 / 相关推荐 ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:44px;padding-top:24px;border-top:1px solid var(--line)}
.tag-row .tag{
  padding:6px 14px;border-radius:999px;font-size:13px;color:var(--t2);
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  transition:all 200ms var(--ease);
}
.tag-row .tag:hover{color:var(--star);border-color:rgba(47,211,196,.5)}
.related-block{margin-top:52px}
.related-block h2{font-size:22px;margin-bottom:20px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.related-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-card);transition:all 220ms var(--ease);display:block;
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card),0 0 0 1px rgba(47,211,196,.35)}
.related-card .thumb{aspect-ratio:16/10;overflow:hidden}
.related-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.related-card:hover .thumb img{transform:scale(1.04)}
.related-card .body{padding:16px 16px 18px}
.related-card h3{font-size:15.5px;line-height:1.55;margin-bottom:8px;color:var(--t1)}
.related-card p{font-size:13px;color:var(--t3);line-height:1.7;margin:0}
.back-row{margin-top:36px}

/* ---------- CTA ---------- */
.cta-section{padding:0 0 88px}
.cta-card{
  position:relative;overflow:hidden;
  background:linear-gradient(150deg,rgba(47,211,196,.14),rgba(108,140,255,.16)),rgba(20,30,51,.9);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius-lg);
  padding:44px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(10px);
}
.cta-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,211,196,.5),transparent);
}
.cta-card h2{font-size:26px;margin-bottom:10px}
.cta-card p{font-size:14.5px;color:var(--t2);margin:0;max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;background:var(--ink-950);
  padding:64px 0 0;border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,211,196,.5),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand p{font-size:13.5px;color:var(--t3);line-height:1.85;margin:16px 0 20px;max-width:340px}
.social-row{display:flex;gap:10px}
.social-row a{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.03);
  transition:all 200ms var(--ease);
}
.social-row svg{width:17px;height:17px;stroke:var(--t2);fill:none;stroke-width:1.5}
.social-row a:hover{border-color:var(--star);background:rgba(47,211,196,.1)}
.social-row a:hover svg{stroke:var(--star)}
.footer-col h4{font-size:14px;color:var(--t1);margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a,.footer-col span{font-size:13.5px;color:var(--t3);line-height:1.6}
.footer-col a:hover{color:var(--star)}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:var(--t3);
}
.footer-bottom .num{color:rgba(255,255,255,.28)}

/* ---------- 入场动画 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 400ms var(--ease),transform 400ms var(--ease)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation:none!important}
}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  :root{--maxw:1140px}
}
@media (max-width:1200px){
  .article-grid{grid-template-columns:minmax(0,1fr)}
  .article-aside{position:static;display:none}
  .article-body{max-width:100%}
}
@media (max-width:992px){
  .header-search{display:none}
  .channel-bar{display:none}
  .nav-toggle{display:inline-flex}
  .topbar-actions .link-text{display:none}
  .topbar-inner{height:60px;gap:12px}
  .brand-text{font-size:16.5px}
  .article-title{font-size:30px}
  .article-hero{padding:26px 0 32px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-card{flex-direction:column;align-items:flex-start;padding:34px 26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .grid-container{padding-left:16px;padding-right:16px}
  .article-section{padding:36px 0 52px}
  .article-title{font-size:26px;margin:14px 0 12px}
  .article-body{font-size:15.5px;line-height:1.88}
  .article-body h2{font-size:21px;margin-top:32px}
  .article-body h3{font-size:18px}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .cta-section{padding-bottom:56px}
  .cta-card h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding-top:48px}
  .breadcrumb{margin-bottom:16px}
}
@media (max-width:480px){
  .btn{width:100%}
  .header-search button{display:none}
  .topbar-actions .btn{width:auto}
  .meta-row{gap:10px;font-size:12.5px}
  .cta-actions{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}

/* roulang page: category1 */
:root{
  --ink-950:#05070F;
  --ink-900:#0A1020;
  --ink-800:#111A2E;
  --surface:#141E33;
  --glass:rgba(255,255,255,.045);
  --line:rgba(255,255,255,.09);
  --line-2:rgba(255,255,255,.16);
  --star:#2FD3C4;
  --nebula:#6C8CFF;
  --amber:#FFB454;
  --ok:#3DD68C;
  --warn:#FFB454;
  --err:#FF6B6B;
  --t1:#E9EFFA;
  --t2:#A3B0C9;
  --t3:#6C7A93;
  --grad-cta:linear-gradient(135deg,#2FD3C4 0%,#6C8CFF 100%);
  --grad-line:linear-gradient(90deg,transparent,rgba(47,211,196,.5),transparent);
  --r-card:16px;
  --r-panel:22px;
  --r-btn:12px;
  --r-img:14px;
  --shadow-card:0 10px 30px rgba(0,0,0,.38);
  --ease:cubic-bezier(.4,0,.2,1);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Inter","DIN Alternate","Helvetica Neue",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--t2);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:var(--t1);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--star);}
button{font-family:inherit;}
h1,h2,h3,h4{color:var(--t1);font-weight:700;margin:0;letter-spacing:0;}
p{margin:0 0 18px;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--star);outline-offset:3px;border-radius:6px;}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;}

/* ---------- 容器 ---------- */
.grid-container{
  max-width:1240px!important;
  padding-left:24px;
  padding-right:24px;
  margin-left:auto;
  margin-right:auto;
}
@media (max-width:1280px){
  .grid-container{max-width:1140px!important;}
}
@media (max-width:768px){
  .grid-container{padding-left:16px;padding-right:16px;}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  line-height:1;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .22s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:var(--grad-cta);
  color:#06121A;
  box-shadow:0 8px 24px rgba(47,211,196,.28);
}
.btn-primary:hover{
  filter:brightness(1.06);
  color:#06121A;
  box-shadow:0 10px 34px rgba(47,211,196,.42);
  transform:translateY(-1px);
}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 14px rgba(47,211,196,.3);}
.btn-ghost{
  background:transparent;
  border-color:var(--line-2);
  color:var(--t1);
}
.btn-ghost:hover{
  border-color:var(--star);
  color:var(--star);
  transform:translateY(-1px);
}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px;}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--star);
  font-size:14px;
  font-weight:600;
  background:none;
  border:0;
  padding:0;
  cursor:pointer;
}
.btn-text svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.8;transition:transform .2s var(--ease);}
.btn-text:hover svg{transform:translateX(3px);}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.2px;
  color:var(--star);
  border:1px solid rgba(47,211,196,.34);
  background:rgba(47,211,196,.08);
}
.badge-amber{color:var(--amber);border-color:rgba(255,180,84,.34);background:rgba(255,180,84,.08);}
.eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  color:var(--star);
  padding-left:12px;
  position:relative;
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  width:3px;height:14px;
  transform:translateY(-50%);
  background:var(--star);
  border-radius:2px;
}
.chip{
  display:inline-flex;
  align-items:center;
  height:32px;
  padding:0 14px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--t2);
  font-size:13px;
  white-space:nowrap;
  transition:all .2s var(--ease);
}
.chip:hover{
  border-color:var(--star);
  color:var(--star);
  background:rgba(47,211,196,.08);
}
.chip.active{
  border-color:rgba(47,211,196,.5);
  color:var(--star);
  background:rgba(47,211,196,.12);
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:200;
  background:rgba(10,16,32,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(10,16,32,.92);
  border-bottom-color:var(--line);
  box-shadow:0 12px 30px rgba(0,0,0,.35);
}
.topbar-inner{
  display:flex!important;
  align-items:center;
  gap:20px;
  height:72px;
  transition:height .25s var(--ease);
}
.site-header.is-scrolled .topbar-inner{height:56px;}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:34px;
  height:34px;
  display:grid;
  place-items:center;
  border-radius:11px;
  background:rgba(47,211,196,.12);
  border:1px solid rgba(47,211,196,.3);
}
.brand-mark svg{width:20px;height:20px;fill:var(--star);}
.brand-text{
  font-size:17px;
  font-weight:700;
  color:var(--t1);
  letter-spacing:.2px;
  white-space:nowrap;
}
.brand:hover .brand-text{color:var(--star);}
.header-search{
  display:flex;
  align-items:center;
  gap:8px;
  flex:1 1 auto;
  max-width:420px;
  height:40px;
  padding:0 6px 0 14px;
  border-radius:999px;
  background:var(--glass);
  border:1px solid var(--line);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.header-search:focus-within{
  border-color:var(--star);
  box-shadow:0 0 0 3px rgba(47,211,196,.15);
}
.header-search .search-icon{
  width:16px;height:16px;
  stroke:var(--t3);fill:none;stroke-width:1.8;
  flex-shrink:0;
}
.header-search input{
  flex:1;
  min-width:0;
  height:100%;
  background:none;
  border:0;
  color:var(--t1);
  font-size:14px;
  outline:none;
}
.header-search input::placeholder{color:var(--t3);}
.header-search button{
  height:30px;
  padding:0 14px;
  border-radius:999px;
  border:0;
  background:rgba(47,211,196,.14);
  color:var(--star);
  font-size:13px;
  font-weight:600;
  cursor:pointer;
  transition:background .2s var(--ease);
}
.header-search button:hover{background:rgba(47,211,196,.24);}
.topbar-actions{
  display:flex;
  align-items:center;
  gap:16px;
  flex-shrink:0;
  margin-left:auto;
}
.link-text{font-size:14px;color:var(--t2);}
.link-text:hover{color:var(--star);}
.nav-toggle{
  display:none;
  width:40px;height:40px;
  border-radius:10px;
  border:1px solid var(--line-2);
  background:transparent;
  cursor:pointer;
  place-items:center;
}
.nav-toggle svg{width:20px;height:20px;stroke:var(--t1);fill:none;stroke-width:1.8;}
.nav-toggle:hover{border-color:var(--star);}
.nav-toggle:hover svg{stroke:var(--star);}

.channel-bar{
  border-top:1px solid var(--line);
  background:rgba(5,7,15,.28);
}
.channel-inner{
  display:flex!important;
  align-items:center;
  gap:24px;
  min-height:48px;
}
.channel-list{
  display:flex;
  align-items:center;
  gap:4px;
  flex-shrink:0;
}
.channel-list a{
  position:relative;
  display:inline-block;
  padding:13px 14px;
  font-size:14.5px;
  font-weight:500;
  color:var(--t2);
}
.channel-list a:hover{color:var(--t1);}
.channel-list a.active{color:var(--star);font-weight:600;}
.channel-list a.active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:6px;
  height:2px;
  border-radius:2px;
  background:var(--grad-cta);
}
.hot-chips{
  display:flex;
  align-items:center;
  gap:8px;
  overflow-x:auto;
  padding:6px 0;
  flex:1 1 auto;
  scrollbar-width:none;
}
.hot-chips::-webkit-scrollbar{display:none;}
.chip-label{font-size:12px;color:var(--t3);white-space:nowrap;}
.hot-chips .chip{height:28px;font-size:12.5px;padding:0 12px;background:transparent;}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(3,5,12,.66);
  opacity:0;
  visibility:hidden;
  transition:opacity .25s var(--ease),visibility .25s var(--ease);
  z-index:300;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;
  top:0;right:0;
  width:min(320px,86vw);
  height:100%;
  background:var(--ink-800);
  border-left:1px solid var(--line);
  transform:translateX(100%);
  transition:transform .28s var(--ease);
  z-index:310;
  padding:22px;
  overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:20px;
}
.drawer-close{
  width:36px;height:36px;
  border-radius:10px;
  border:1px solid var(--line-2);
  background:transparent;
  color:var(--t1);
  cursor:pointer;
  font-size:18px;
  line-height:1;
}
.drawer-close:hover{border-color:var(--star);color:var(--star);}
.drawer h4{font-size:13px;color:var(--t3);font-weight:600;margin:18px 0 10px;}
.drawer-links a{
  display:block;
  padding:11px 0;
  font-size:15px;
  color:var(--t1);
  border-bottom:1px solid var(--line);
}
.drawer-links a:hover{color:var(--star);}
.drawer-chips{display:flex;flex-wrap:wrap;gap:8px;}
.drawer .btn{width:100%;margin-top:22px;}

/* ---------- 频道横幅 ---------- */
.page-hero{
  position:relative;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  background-repeat:no-repeat;
  padding:56px 0 60px;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(5,7,15,.9) 0%,rgba(5,7,15,.84) 58%,rgba(10,16,32,.96) 100%);
}
.page-hero::after{
  content:"";
  position:absolute;
  left:0;right:0;top:0;
  height:1px;
  background:var(--grad-line);
}
.hero-inner{position:relative;z-index:2;}
.breadcrumb{
  font-size:13px;
  color:var(--t3);
  margin-bottom:20px;
}
.breadcrumb a{color:var(--t3);}
.breadcrumb a:hover{color:var(--star);}
.breadcrumb span.sep{margin:0 8px;color:rgba(255,255,255,.22);}
.page-hero h1{
  font-size:38px;
  line-height:1.3;
  margin:0 0 16px;
  max-width:16em;
}
.hero-sub{
  font-size:16px;
  color:var(--t2);
  max-width:34em;
  margin:0 0 26px;
}
.hero-metrics{
  display:flex;
  flex-wrap:wrap;
  gap:14px 40px;
}
.metric-item{min-width:110px;}
.metric-item .metric-num{
  display:block;
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:24px;
  font-weight:700;
  color:var(--t1);
  line-height:1.3;
}
.metric-item .metric-num em{font-style:normal;font-size:14px;color:var(--star);margin-left:4px;}
.metric-item .metric-cap{font-size:12px;color:var(--t3);line-height:1.6;}

.hero-panel{
  background:var(--glass);
  border:1px solid var(--line-2);
  border-radius:var(--r-panel);
  padding:22px;
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow-card);
}
.hero-panel h2{
  font-size:15px;
  font-weight:600;
  color:var(--t1);
  margin-bottom:14px;
}
.panel-search{
  display:flex;
  align-items:center;
  gap:8px;
  height:44px;
  padding:0 6px 0 14px;
  border-radius:12px;
  background:rgba(5,7,15,.55);
  border:1px solid var(--line);
  margin-bottom:16px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.panel-search:focus-within{
  border-color:var(--star);
  box-shadow:0 0 0 3px rgba(47,211,196,.15);
}
.panel-search svg{width:16px;height:16px;stroke:var(--t3);fill:none;stroke-width:1.8;flex-shrink:0;}
.panel-search input{
  flex:1;min-width:0;height:100%;
  background:none;border:0;outline:none;
  color:var(--t1);font-size:14px;
}
.panel-search input::placeholder{color:var(--t3);}
.panel-search button{
  height:32px;padding:0 16px;border:0;border-radius:8px;
  background:var(--grad-cta);color:#06121A;font-size:13px;font-weight:700;cursor:pointer;
}
.panel-search button:hover{filter:brightness(1.06);}
.hero-panel .chip-row{display:flex;flex-wrap:wrap;gap:8px;}
.hero-panel .panel-note{
  margin:14px 0 0;
  font-size:12.5px;
  color:var(--t3);
  line-height:1.7;
}

/* ---------- 板块 ---------- */
.section{padding:88px 0;}
.section-alt{background:var(--ink-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:36px;
}
.section-head h2{
  font-size:28px;
  line-height:1.35;
  position:relative;
  padding-left:16px;
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;top:8px;bottom:8px;
  width:3px;
  border-radius:2px;
  background:var(--grad-cta);
}
.section-head p{
  margin:8px 0 0;
  font-size:15px;
  color:var(--t3);
  max-width:52em;
}
.section-head .head-desc{padding-left:16px;}

/* ---------- 入口方式卡 ---------- */
.entry-grid{margin-bottom:24px;}
.entry-grid:last-child{margin-bottom:0;}
.entry-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  padding:24px;
  margin-bottom:24px;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  display:flex;
  flex-direction:column;
}
.entry-card:hover{
  transform:translateY(-4px);
  border-color:rgba(47,211,196,.35);
  box-shadow:var(--shadow-card),0 0 0 1px rgba(47,211,196,.35);
}
.entry-card-lg{flex-direction:row;gap:24px;padding:24px;}
.entry-media{
  flex:0 0 44%;
  border-radius:var(--r-img);
  overflow:hidden;
  aspect-ratio:16/10;
  background:var(--ink-900);
}
.entry-media img{
  width:100%;height:100%;
  object-fit:cover;
  border-radius:0;
  transition:transform .4s var(--ease);
}
.entry-card:hover .entry-media img{transform:scale(1.04);}
.entry-body{display:flex;flex-direction:column;flex:1 1 auto;}
.entry-body h3{
  font-size:17px;
  line-height:1.5;
  font-weight:600;
  margin-bottom:10px;
}
.entry-body p{
  font-size:14.5px;
  color:var(--t2);
  line-height:1.8;
  margin:0 0 18px;
}
.entry-body .btn-text{margin-top:auto;}
.entry-ico{
  width:40px;height:40px;
  border-radius:11px;
  display:grid;place-items:center;
  background:rgba(47,211,196,.1);
  border:1px solid rgba(47,211,196,.26);
  margin-bottom:16px;
}
.entry-ico svg{width:20px;height:20px;stroke:var(--star);fill:none;stroke-width:1.5;}

/* ---------- 场景 ---------- */
.scene-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  padding:30px;
  height:100%;
  margin-bottom:24px;
}
.scene-card h3{
  font-size:20px;
  line-height:1.5;
  margin-bottom:6px;
}
.scene-card .scene-sub{
  font-size:13px;
  color:var(--t3);
  margin:0 0 20px;
}
.scene-list li{
  display:flex;
  gap:12px;
  padding:14px 0;
  border-top:1px solid var(--line);
  font-size:15px;
  line-height:1.8;
  color:var(--t2);
}
.scene-list li:first-child{border-top:0;padding-top:0;}
.scene-list li::before{
  content:"";
  flex:0 0 auto;
  width:6px;height:6px;
  margin-top:11px;
  border-radius:50%;
  background:var(--star);
  box-shadow:0 0 0 3px rgba(47,211,196,.14);
}

/* ---------- 步骤 ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.step{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 22px;
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.step:hover{transform:translateY(-4px);border-color:rgba(47,211,196,.35);}
.step-num{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:13px;
  font-weight:700;
  color:var(--star);
  letter-spacing:1px;
  margin-bottom:14px;
  display:flex;
  align-items:center;
  gap:8px;
}
.step-num::after{
  content:"";
  flex:1;
  height:1px;
  background:var(--line);
}
.step h3{font-size:17px;line-height:1.5;font-weight:600;margin-bottom:8px;}
.step p{font-size:14px;color:var(--t2);line-height:1.8;margin:0;}

/* ---------- 对照表 ---------- */
.table-wrap{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  padding:6px 0;
  overflow:hidden;
}
.compare-table{
  width:100%;
  border-collapse:collapse;
  margin:0;
  border:0;
  background:transparent;
}
.compare-table thead th{
  background:rgba(17,26,46,.92);
  color:var(--t1);
  font-size:13.5px;
  font-weight:600;
  text-align:left;
  padding:16px 22px;
  border:0;
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.compare-table tbody td{
  padding:18px 22px;
  font-size:14.5px;
  color:var(--t2);
  border:0;
  border-bottom:1px solid var(--line);
  line-height:1.7;
  vertical-align:middle;
}
.compare-table tbody tr{background:transparent;}
.compare-table tbody tr:nth-child(even){background:rgba(255,255,255,.016);}
.compare-table tbody tr:last-child td{border-bottom:0;}
.compare-table tbody tr:hover{background:rgba(47,211,196,.05);}
.compare-table .col-name{color:var(--t1);font-weight:600;}
.compare-table .col-time{
  color:var(--amber);
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-weight:600;
  white-space:nowrap;
}
.table-note{
  font-size:13px;
  color:var(--t3);
  margin:16px 0 0;
}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:12px;
  overflow:hidden;
  position:relative;
  transition:border-color .22s var(--ease);
}
.faq-item::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:2px;
  background:var(--star);
  opacity:0;
  transition:opacity .22s var(--ease);
}
.faq-item.open::before{opacity:1;}
.faq-item.open{border-color:rgba(47,211,196,.35);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  text-align:left;
  padding:18px 24px;
  background:none;
  border:0;
  color:var(--t2);
  font-size:16px;
  font-weight:600;
  line-height:1.6;
  cursor:pointer;
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--t1);}
.faq-item.open .faq-q{color:var(--t1);}
.faq-q .faq-arrow{
  flex:0 0 auto;
  width:22px;height:22px;
  display:grid;place-items:center;
  transition:transform .25s var(--ease);
}
.faq-q .faq-arrow svg{width:16px;height:16px;stroke:var(--t3);fill:none;stroke-width:1.8;}
.faq-item.open .faq-arrow{transform:rotate(180deg);}
.faq-item.open .faq-arrow svg{stroke:var(--star);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s var(--ease);
}
.faq-a-inner{
  padding:0 24px 20px;
  font-size:14.5px;
  line-height:1.85;
  color:var(--t2);
}
.faq-a-inner a{color:var(--star);}

/* ---------- 窄 CTA 条 ---------- */
.mini-cta{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
  background:var(--glass);
  border:1px solid var(--line-2);
  border-radius:var(--r-panel);
  padding:26px 30px;
  overflow:hidden;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.mini-cta::before{
  content:"";
  position:absolute;
  left:0;right:0;top:0;
  height:1px;
  background:var(--grad-line);
}
.mini-cta h3{font-size:19px;line-height:1.5;margin-bottom:6px;}
.mini-cta p{margin:0;font-size:14px;color:var(--t3);}
.mini-cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink-950);
  border-top:1px solid var(--line);
  position:relative;
  padding:64px 0 0;
  margin-top:0;
}
.site-footer::before{
  content:"";
  position:absolute;
  left:0;right:0;top:0;
  height:1px;
  background:var(--grad-line);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand p{
  font-size:14px;
  color:var(--t3);
  line-height:1.85;
  margin:16px 0 20px;
  max-width:34em;
}
.social-row{display:flex;gap:10px;}
.social-row a{
  width:36px;height:36px;
  display:grid;place-items:center;
  border-radius:10px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.02);
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.social-row a svg{width:17px;height:17px;stroke:var(--t3);fill:none;stroke-width:1.5;transition:stroke .2s var(--ease);}
.social-row a:hover{border-color:var(--star);background:rgba(47,211,196,.08);}
.social-row a:hover svg{stroke:var(--star);}
.footer-col h4{
  font-size:14px;
  color:var(--t1);
  font-weight:600;
  margin-bottom:16px;
}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul li a,
.footer-col ul li span{
  font-size:13.5px;
  color:var(--t3);
  line-height:1.7;
}
.footer-col ul li a:hover{color:var(--star);}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--t3);
}

/* ---------- 入场动效 ---------- */
.reveal{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .4s var(--ease),transform .4s var(--ease);
}
.reveal.in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .header-search{max-width:300px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1/-1;}
}
@media (max-width:992px){
  .header-search{display:none;}
  .channel-bar{display:none;}
  .nav-toggle{display:grid;}
  .topbar-actions .link-text{display:none;}
  .page-hero{padding:44px 0 48px;}
  .page-hero h1{font-size:32px;max-width:none;}
  .hero-panel{margin-top:28px;}
  .section{padding:64px 0;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .entry-card-lg{flex-direction:column;}
  .entry-media{flex:0 0 auto;width:100%;}
}
@media (max-width:768px){
  body{font-size:15.5px;}
  .brand-text{font-size:16px;}
  .page-hero h1{font-size:27px;line-height:1.35;}
  .hero-sub{font-size:15px;margin-bottom:22px;}
  .section{padding:56px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;margin-bottom:26px;}
  .section-head h2{font-size:22px;}
  .section-head p{font-size:14px;}
  .steps{grid-template-columns:1fr;}
  .scene-card{padding:24px;}
  .mini-cta{padding:22px;flex-direction:column;align-items:flex-start;}
  .mini-cta-actions{width:100%;}
  .mini-cta-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .footer-brand{grid-column:1/-1;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  /* 表格转卡片 */
  .table-wrap{background:transparent;border:0;padding:0;overflow:visible;}
  .compare-table thead{display:none;}
  .compare-table,
  .compare-table tbody,
  .compare-table tr,
  .compare-table td{display:block;width:100%;}
  .compare-table tbody tr{
    background:var(--surface)!important;
    border:1px solid var(--line);
    border-radius:var(--r-card);
    padding:16px 18px;
    margin-bottom:14px;
  }
  .compare-table tbody td{
    padding:6px 0;
    border:0;
    border-bottom:1px dashed rgba(255,255,255,.07);
    display:flex;
    justify-content:space-between;
    gap:16px;
    font-size:14px;
  }
  .compare-table tbody td:last-child{border-bottom:0;}
  .compare-table tbody td::before{
    content:attr(data-label);
    color:var(--t3);
    font-size:13px;
    flex:0 0 auto;
  }
  .compare-table tbody td.col-name{font-size:15.5px;}
}
@media (max-width:480px){
  .hero-metrics{gap:14px 24px;}
  .metric-item{min-width:calc(50% - 12px);}
  .btn{width:100%;}
  .btn-text,.link-text{width:auto;}
  .entry-card{padding:20px;}
  .faq-q{padding:16px 18px;font-size:15px;}
  .faq-a-inner{padding:0 18px 18px;}
  .footer-grid{grid-template-columns:1fr;}
  .brand-mark{width:30px;height:30px;border-radius:9px;}
  .brand-text{font-size:15px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --ink-950:#05070F;--ink-900:#0A1020;--ink-800:#111A2E;--surface:#141E33;
  --glass:rgba(255,255,255,.045);--line:rgba(255,255,255,.09);--line-2:rgba(255,255,255,.16);
  --star:#2FD3C4;--nebula:#6C8CFF;--amber:#FFB454;--ok:#3DD68C;--warn:#FFB454;--err:#FF6B6B;
  --t1:#E9EFFA;--t2:#A3B0C9;--t3:#6C7A93;
  --grad-cta:linear-gradient(135deg,#2FD3C4 0%,#6C8CFF 100%);
  --r-card:16px;--r-panel:22px;--r-btn:12px;
  --shadow-card:0 10px 30px rgba(0,0,0,.38);
  --ease:cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;padding:0;background:var(--ink-900);color:var(--t2);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.85;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{margin:0;color:var(--t1);font-weight:700;line-height:1.32;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease);}
img{display:block;max-width:100%;height:auto;}
button{font-family:inherit;font-size:inherit;border:0;background:none;color:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;}
:focus-visible{outline:2px solid var(--star);outline-offset:2px;border-radius:4px;}
.num{font-family:"Inter","DIN Alternate",sans-serif;font-variant-numeric:tabular-nums;}
::selection{background:rgba(47,211,196,.28);color:#fff;}

.grid-container{width:100%;max-width:1240px;margin:0 auto;padding-left:24px;padding-right:24px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),filter .22s var(--ease);
}
.btn-primary{background:var(--grad-cta);color:#fff;box-shadow:0 8px 24px rgba(47,211,196,.28);}
.btn-primary:hover{filter:brightness(1.06);box-shadow:0 10px 34px rgba(47,211,196,.42);transform:translateY(-1px);color:#fff;}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 14px rgba(47,211,196,.26);}
.btn-ghost{background:transparent;border-color:var(--line-2);color:var(--t1);}
.btn-ghost:hover{border-color:var(--star);color:var(--star);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}
.btn-link{display:inline-flex;align-items:center;gap:6px;color:var(--star);font-size:14px;font-weight:600;}
.btn-link svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;transition:transform .22s var(--ease);}
.btn-link:hover{color:#7BF0E4;}
.btn-link:hover svg{transform:translateX(3px);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(5,7,15,.62);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:background-color .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(10,16,32,.88);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
  box-shadow:0 12px 30px rgba(0,0,0,.32);
}
.topbar-inner{display:flex;align-items:center;gap:22px;min-height:74px;padding-top:12px;padding-bottom:12px;transition:min-height .28s var(--ease);}
.site-header.is-scrolled .topbar-inner{min-height:58px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:11px;background:rgba(47,211,196,.12);border:1px solid rgba(47,211,196,.32);}
.brand-mark svg{width:19px;height:19px;fill:none;stroke:var(--star);stroke-width:1.5;stroke-linejoin:round;}
.brand-text{font-size:18px;font-weight:700;color:var(--t1);letter-spacing:.01em;white-space:nowrap;}
.header-search{
  display:flex;align-items:center;gap:8px;flex:1 1 auto;max-width:400px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);border-radius:999px;
  padding:5px 5px 5px 14px;transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.header-search:focus-within{border-color:var(--star);box-shadow:0 0 0 3px rgba(47,211,196,.15);}
.header-search .search-icon{width:17px;height:17px;flex:0 0 auto;fill:none;stroke:var(--t3);stroke-width:1.6;stroke-linecap:round;}
.header-search input{
  flex:1 1 auto;min-width:0;height:32px;background:transparent;border:0;outline:none;color:var(--t1);font-size:14px;
}
.header-search input::placeholder{color:var(--t3);}
.header-search button{height:32px;padding:0 14px;border-radius:999px;background:rgba(47,211,196,.14);color:var(--star);font-size:13px;font-weight:600;transition:background-color .22s var(--ease);}
.header-search button:hover{background:rgba(47,211,196,.26);}
.topbar-actions{display:flex;align-items:center;gap:18px;margin-left:auto;flex:0 0 auto;}
.link-text{font-size:14px;color:var(--t2);}
.link-text:hover{color:var(--star);}
.nav-toggle{display:none;width:40px;height:40px;border-radius:11px;border:1px solid var(--line-2);align-items:center;justify-content:center;color:var(--t1);}
.nav-toggle svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;}
.nav-toggle:hover{border-color:var(--star);color:var(--star);}

.channel-bar{border-top:1px solid var(--line);}
.channel-inner{display:flex;align-items:center;gap:24px;min-height:48px;overflow:hidden;}
.channel-list{display:flex;align-items:center;gap:26px;flex:0 0 auto;}
.channel-list a{position:relative;display:inline-block;padding:12px 0;font-size:14.5px;font-weight:500;color:var(--t2);}
.channel-list a:hover{color:var(--t1);}
.channel-list a.active{color:var(--star);font-weight:600;}
.channel-list a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,#2FD3C4,#6C8CFF);
}
.hot-chips{display:flex;align-items:center;gap:8px;margin-left:auto;overflow-x:auto;scrollbar-width:none;}
.hot-chips::-webkit-scrollbar{display:none;}
.chip-label{font-size:12px;color:var(--t3);white-space:nowrap;}
.chip{
  display:inline-block;padding:4px 11px;border-radius:999px;border:1px solid var(--line);
  font-size:12.5px;color:var(--t2);white-space:nowrap;transition:all .22s var(--ease);
}
.chip:hover{border-color:rgba(47,211,196,.5);color:var(--star);}

/* 抽屉 */
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:320px;max-width:86vw;z-index:90;
  background:var(--ink-800);border-left:1px solid var(--line-2);
  padding:22px 22px 32px;display:flex;flex-direction:column;gap:22px;
  transform:translateX(104%);transition:transform .32s var(--ease);
  box-shadow:-20px 0 50px rgba(0,0,0,.5);
}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line-2);display:inline-flex;align-items:center;justify-content:center;font-size:20px;line-height:1;color:var(--t1);}
.drawer-close:hover{border-color:var(--star);color:var(--star);}
.drawer-list{display:flex;flex-direction:column;gap:2px;}
.drawer-list a{display:block;padding:12px 12px;border-radius:10px;font-size:15px;color:var(--t2);}
.drawer-list a:hover{background:rgba(255,255,255,.05);color:var(--t1);}
.drawer-list a.active{color:var(--star);background:rgba(47,211,196,.1);}
.drawer-note{font-size:12.5px;color:var(--t3);line-height:1.7;}
.drawer-mask{position:fixed;inset:0;background:rgba(3,5,12,.6);z-index:85;opacity:0;pointer-events:none;transition:opacity .3s var(--ease);}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}

/* ---------- 频道横幅 ---------- */
.banner{
  position:relative;overflow:hidden;
  padding:56px 0 60px;
  background:
    linear-gradient(180deg,rgba(5,7,15,.88) 0%,rgba(5,7,15,.74) 52%,rgba(10,16,32,.97) 100%),
    url("/assets/images/backpic/back-2.png") center / cover no-repeat;
  border-bottom:1px solid var(--line);
}
.banner-stars{
  position:absolute;inset:0;pointer-events:none;opacity:.08;
  background-image:radial-gradient(rgba(255,255,255,.9) 1px,transparent 1px),radial-gradient(rgba(255,255,255,.7) 1px,transparent 1px);
  background-size:118px 118px,76px 92px;background-position:0 0,32px 46px;
}
.banner .grid-container{position:relative;z-index:2;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--t3);margin-bottom:22px;}
.crumb a:hover{color:var(--star);}
.crumb span.sep{opacity:.6;}
.crumb-current{color:var(--t2);}
.banner-grid{row-gap:34px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:16px;
  padding:5px 13px;border-radius:999px;border:1px solid rgba(47,211,196,.4);
  font-size:12.5px;color:var(--star);background:rgba(47,211,196,.08);
}
.banner h1{font-size:38px;line-height:1.3;letter-spacing:.01em;}
.banner-sub{margin-top:16px;font-size:16px;color:var(--t2);max-width:34em;}
.banner-metrics{display:flex;flex-wrap:wrap;gap:34px;margin-top:30px;}
.metric-strong{display:block;font-size:24px;font-weight:700;color:var(--t1);line-height:1.2;}
.metric-strong em{font-style:normal;color:var(--star);}
.metric-label{display:block;margin-top:4px;font-size:12.5px;color:var(--t3);}

.banner-panel{
  background:var(--glass);border:1px solid var(--line-2);border-radius:var(--r-panel);
  padding:24px;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
}
.panel-title{font-size:15px;font-weight:600;color:var(--t1);}
.panel-desc{margin-top:6px;font-size:13px;color:var(--t3);line-height:1.75;}
.search-box{
  display:flex;align-items:center;gap:10px;margin-top:16px;
  background:rgba(255,255,255,.06);border:1px solid var(--line-2);border-radius:999px;
  padding:5px 5px 5px 14px;transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.search-box:focus-within{border-color:var(--star);box-shadow:0 0 0 3px rgba(47,211,196,.15);}
.search-box svg{width:17px;height:17px;flex:0 0 auto;fill:none;stroke:var(--t3);stroke-width:1.6;stroke-linecap:round;}
.search-box input{flex:1 1 auto;min-width:0;height:34px;background:transparent;border:0;outline:none;color:var(--t1);font-size:14px;}
.search-box input::placeholder{color:var(--t3);}
.search-box button{height:34px;padding:0 16px;border-radius:999px;background:var(--grad-cta);color:#fff;font-size:13px;font-weight:600;}
.search-box button:hover{filter:brightness(1.07);}
.filter-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.filter-chip{
  display:inline-block;padding:6px 14px;border-radius:999px;border:1px solid var(--line);
  font-size:13px;color:var(--t2);background:rgba(255,255,255,.03);transition:all .22s var(--ease);
}
.filter-chip:hover{border-color:rgba(47,211,196,.5);color:var(--star);}
.filter-chip.is-active{border-color:rgba(47,211,196,.6);color:var(--star);background:rgba(47,211,196,.12);}

/* ---------- 板块 ---------- */
.section{padding:88px 0;scroll-margin-top:118px;}
.section--alt{background:var(--ink-800);}
.section--glow{position:relative;}
.section--glow::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,211,196,.5),transparent);
}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:38px;}
.section-head h2{font-size:28px;line-height:1.35;}
.section-head .head-desc{margin-top:10px;font-size:14.5px;color:var(--t3);max-width:44em;}
.section-tag{font-size:12.5px;color:var(--star);letter-spacing:.04em;margin-bottom:10px;display:block;}

/* ---------- 反白流程条 ---------- */
.steps-panel{
  background:#EAF0FF;color:var(--ink-900);border-radius:var(--r-panel);
  padding:38px 34px;box-shadow:0 18px 46px rgba(0,0,0,.34);
}
.steps-panel h2{color:var(--ink-900);font-size:26px;}
.steps-panel .steps-desc{color:#41506B;font-size:14px;margin-top:10px;max-width:52em;}
.steps-grid{margin-top:30px;}
.step{position:relative;padding-right:18px;}
.step-icon{
  width:42px;height:42px;border-radius:12px;background:rgba(10,16,32,.08);
  display:flex;align-items:center;justify-content:center;
}
.step-icon svg{width:21px;height:21px;fill:none;stroke:#0E3F3B;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.step-num{
  position:absolute;top:-6px;left:32px;width:24px;height:24px;border-radius:999px;
  background:var(--ink-900);color:#EAF0FF;font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.step h3{font-size:16.5px;color:var(--ink-900);margin-top:16px;}
.step p{font-size:13.5px;color:#41506B;line-height:1.8;margin-top:8px;}

/* ---------- 套餐卡 ---------- */
.plans{margin-top:8px;}
.plan{
  position:relative;display:flex;flex-direction:column;height:100%;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 26px;box-shadow:var(--shadow-card);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.plan:hover{transform:translateY(-4px);box-shadow:0 0 0 1px rgba(47,211,196,.35),var(--shadow-card);}
.plan-featured{border-color:rgba(47,211,196,.55);box-shadow:0 0 0 1px rgba(47,211,196,.22),0 18px 40px rgba(0,0,0,.42);transform:translateY(-8px);}
.plan-featured:hover{transform:translateY(-12px);}
.plan-badge{
  position:absolute;top:-13px;left:26px;padding:3px 12px;border-radius:999px;
  background:var(--amber);color:#2A1702;font-size:12px;font-weight:700;letter-spacing:.02em;
}
.plan-name{font-size:17px;font-weight:600;color:var(--t1);}
.plan-for{margin-top:6px;font-size:13px;color:var(--t3);}
.plan-price{display:flex;align-items:baseline;gap:6px;margin-top:18px;}
.plan-price strong{font-size:32px;font-weight:700;color:var(--amber);line-height:1.1;}
.plan-price span{font-size:13px;color:var(--t3);}
.plan-line{height:1px;background:var(--line);margin:20px 0 18px;}
.plan-list{display:flex;flex-direction:column;gap:11px;font-size:14.5px;color:var(--t2);}
.plan-list li{position:relative;padding-left:18px;line-height:1.7;}
.plan-list li::before{
  content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:999px;
  background:var(--star);box-shadow:0 0 0 3px rgba(47,211,196,.14);
}
.plan-action{margin-top:26px;padding-top:0;display:flex;flex-direction:column;gap:10px;}
.plan-note{font-size:12.5px;color:var(--t3);text-align:center;}

/* ---------- 图文混排 ---------- */
.feature-figure{position:relative;border-radius:14px;overflow:hidden;border:1px solid var(--line);background:var(--ink-800);}
.feature-figure img{width:100%;aspect-ratio:16 / 11;object-fit:cover;transition:transform .4s var(--ease);}
.feature-figure:hover img{transform:scale(1.03);}
.feature-body h2{font-size:28px;}
.feature-body .feature-lead{margin-top:16px;font-size:15.5px;line-height:1.9;color:var(--t2);}
.feature-sub{font-size:19px;margin-top:28px;}
.feature-body p + p{margin-top:14px;}
.feature-list{display:flex;flex-direction:column;gap:12px;margin-top:18px;font-size:14.5px;}
.feature-list li{position:relative;padding-left:22px;line-height:1.8;}
.feature-list li::before{
  content:"";position:absolute;left:0;top:10px;width:8px;height:8px;border-radius:2px;
  border:1.5px solid var(--star);transform:rotate(45deg);
}
.data-row{display:flex;flex-wrap:wrap;gap:30px;margin-top:28px;padding-top:22px;border-top:1px solid var(--line);}
.data-item strong{display:block;font-size:22px;color:var(--t1);line-height:1.2;}
.data-item span{display:block;margin-top:4px;font-size:12.5px;color:var(--t3);}

/* ---------- 评价 ---------- */
.quote-card{
  height:100%;background:var(--glass);border:1px solid var(--line-2);border-radius:var(--r-card);
  padding:26px 26px 24px;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
}
.stars{display:flex;gap:4px;margin-bottom:14px;}
.stars svg{width:16px;height:16px;fill:var(--amber);stroke:none;}
.quote-card blockquote{margin:0;font-size:15px;line-height:1.9;color:var(--t1);}
.quote-meta{display:flex;align-items:center;gap:10px;margin-top:18px;font-size:13px;color:var(--t3);}
.quote-avatar{
  width:32px;height:32px;border-radius:999px;display:flex;align-items:center;justify-content:center;
  background:rgba(47,211,196,.14);border:1px solid rgba(47,211,196,.3);color:var(--star);font-size:13px;font-weight:600;
}
.quote-meta .tag{
  padding:2px 9px;border-radius:999px;border:1px solid rgba(108,140,255,.4);color:#A9BAFF;font-size:12px;
}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:12px;overflow:hidden;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-item:hover{border-color:var(--line-2);}
.faq-item.is-open{border-color:rgba(47,211,196,.4);box-shadow:inset 2px 0 0 var(--star);}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;
  padding:18px 24px;text-align:left;font-size:16px;font-weight:600;color:var(--t1);
}
.faq-item.is-open .faq-q{color:var(--t1);}
.faq-chev{width:18px;height:18px;flex:0 0 auto;fill:none;stroke:var(--t3);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;transition:transform .28s var(--ease);}
.faq-item.is-open .faq-chev{transform:rotate(180deg);stroke:var(--star);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
.faq-a-inner{padding:0 24px 20px;font-size:14.5px;line-height:1.85;color:var(--t2);}

/* ---------- CTA ---------- */
.cta-card{
  position:relative;overflow:hidden;border-radius:var(--r-panel);
  background:rgba(255,255,255,.045);border:1px solid var(--line-2);
  padding:46px 44px;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:0 22px 60px rgba(0,0,0,.42);
}
.cta-card::before{
  content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;pointer-events:none;
  background:linear-gradient(135deg,rgba(47,211,196,.75),rgba(108,140,255,.4) 46%,rgba(255,255,255,.05) 100%);
  -webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);
  -webkit-mask-composite:xor;mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);mask-composite:exclude;
}
.cta-card h2{font-size:28px;line-height:1.35;}
.cta-card .cta-lead{margin-top:14px;font-size:15px;color:var(--t2);max-width:32em;}
.cta-points{display:flex;flex-direction:column;gap:10px;margin-top:22px;font-size:14px;color:var(--t2);}
.cta-points li{display:flex;align-items:flex-start;gap:10px;}
.cta-points svg{width:17px;height:17px;flex:0 0 auto;margin-top:5px;fill:none;stroke:var(--star);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.cta-form{display:flex;flex-direction:column;gap:16px;}
.field{display:flex;flex-direction:column;gap:7px;}
.field label{font-size:13px;color:var(--t2);}
.field input,.field select{
  height:44px;padding:0 14px;border-radius:12px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--t1);
  font-size:14px;outline:none;appearance:none;-webkit-appearance:none;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease);
}
.field input::placeholder{color:var(--t3);}
.field input:focus,.field select:focus{border-color:var(--star);box-shadow:0 0 0 3px rgba(47,211,196,.15);background:rgba(255,255,255,.07);}
.field select{background-image:linear-gradient(45deg,transparent 50%,#6C7A93 50%),linear-gradient(135deg,#6C7A93 50%,transparent 50%);background-position:calc(100% - 20px) 19px,calc(100% - 14px) 19px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;}
.form-note{font-size:12.5px;color:var(--t3);line-height:1.7;}
.form-note.is-ok{color:var(--ok);}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--ink-950);padding-top:64px;}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,211,196,.5),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:44px;padding-bottom:46px;}
.footer-brand p{margin-top:16px;font-size:13px;line-height:1.9;color:var(--t3);max-width:26em;}
.social-row{display:flex;gap:10px;margin-top:20px;}
.social-row a{
  width:36px;height:36px;border-radius:999px;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--t2);
  transition:all .22s var(--ease);
}
.social-row a svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;}
.social-row a:hover{border-color:var(--star);color:var(--star);background:rgba(47,211,196,.08);}
.footer-col h4{font-size:14.5px;color:var(--t1);margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a,.footer-col span{font-size:13px;color:var(--t3);line-height:1.7;display:inline-block;}
.footer-col a:hover{color:var(--star);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);padding:20px 0 28px;font-size:12.5px;color:var(--t3);
}

/* ---------- 动效 ---------- */
.js .reveal{opacity:0;transform:translateY(12px);transition:opacity .4s var(--ease),transform .4s var(--ease);}
.js .reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .js .reveal{opacity:1;transform:none;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .grid-container{max-width:1140px;}
  .banner h1{font-size:34px;}
}
@media (max-width:992px){
  .header-search{display:none;}
  .channel-bar{display:none;}
  .nav-toggle{display:inline-flex;}
  .topbar-inner{min-height:62px;}
  .topbar-actions{gap:14px;}
  .banner{padding:40px 0 46px;}
  .banner h1{font-size:31px;}
  .section{padding:64px 0;}
  .cta-card{padding:34px 28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .plan-featured{transform:none;}
  .plan-featured:hover{transform:translateY(-4px);}
}
@media (max-width:768px){
  .grid-container{padding-left:16px;padding-right:16px;}
  body{line-height:1.85;}
  .banner h1{font-size:27px;}
  .banner-sub{font-size:15px;}
  .banner-metrics{gap:22px;}
  .metric-strong{font-size:20px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:26px;}
  .section-head h2,.feature-body h2,.cta-card h2{font-size:22px;}
  .steps-panel{padding:26px 22px;}
  .steps-panel h2{font-size:21px;}
  .step{padding:0 0 22px;border-left:1px dashed rgba(10,16,32,.2);padding-left:0;}
  .step-icon{width:38px;height:38px;}
  .step h3{margin-top:12px;font-size:15.5px;}
  .step p{font-size:13px;}
  .steps-grid .cell:last-child .step{border-left:0;padding-bottom:0;}
  .plan{padding:24px 20px;}
  .faq-q{font-size:15px;padding:16px 18px;}
  .faq-a-inner{padding:0 18px 18px;font-size:14px;}
  .cta-card{padding:28px 20px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;padding-bottom:34px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (max-width:520px){
  .brand-text{font-size:16px;}
  .topbar-actions .link-text{display:none;}
  .banner h1{font-size:24px;}
  .eyebrow{font-size:11.5px;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-form .btn,.plan-action .btn{width:100%;}
  .filter-chip{padding:5px 12px;font-size:12.5px;}
  .plan-price strong{font-size:28px;}
  .data-row{gap:20px;}
}

/* roulang page: category3 */
:root{
  --ink-950:#05070F; --ink-900:#0A1020; --ink-800:#111A2E; --surface:#141E33;
  --glass:rgba(255,255,255,.045); --line:rgba(255,255,255,.09); --line-2:rgba(255,255,255,.16);
  --star:#2FD3C4; --nebula:#6C8CFF; --amber:#FFB454; --ok:#3DD68C; --err:#FF6B6B;
  --t1:#E9EFFA; --t2:#A3B0C9; --t3:#6C7A93;
  --grad-cta:linear-gradient(135deg,#2FD3C4 0%,#6C8CFF 100%);
  --r-card:16px; --r-panel:22px; --r-btn:12px;
  --shadow:0 10px 30px rgba(0,0,0,.38);
  --ease:cubic-bezier(.4,0,.2,1);
  --maxw:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:150px;-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",-apple-system,sans-serif;
  background:var(--ink-900);color:var(--t2);font-size:16px;line-height:1.85;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.6;
  background-image:
    radial-gradient(1px 1px at 12% 18%,rgba(255,255,255,.35),transparent 60%),
    radial-gradient(1px 1px at 72% 12%,rgba(255,255,255,.22),transparent 60%),
    radial-gradient(1px 1px at 38% 68%,rgba(255,255,255,.18),transparent 60%),
    radial-gradient(1px 1px at 88% 52%,rgba(255,255,255,.2),transparent 60%),
    radial-gradient(1px 1px at 52% 88%,rgba(255,255,255,.14),transparent 60%);
}
h1,h2,h3,h4{margin:0;color:var(--t1);font-weight:700;letter-spacing:0}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
img{display:block;max-width:100%;height:auto}
button{font-family:inherit}
svg{fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.brand-mark svg{fill:currentColor;stroke:none}
.num{font-family:"Inter","DIN Alternate",sans-serif;font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--star);outline-offset:3px}
.grid-container{width:100%;max-width:var(--maxw);margin:0 auto;padding-left:24px;padding-right:24px}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;background:rgba(10,16,32,.6);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;transition:background .25s var(--ease),border-color .25s var(--ease);
}
.site-header.is-scrolled{background:rgba(10,16,32,.92);border-bottom-color:var(--line)}
.topbar-inner{display:flex;align-items:center;gap:22px;height:70px;transition:height .25s var(--ease)}
.site-header.is-scrolled .topbar-inner{height:58px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  color:#06202a;background:var(--grad-cta);box-shadow:0 6px 18px rgba(47,211,196,.28);
}
.brand-mark svg{width:19px;height:19px}
.brand-text{font-size:18px;font-weight:700;color:var(--t1);white-space:nowrap}
.header-search{
  position:relative;display:flex;align-items:center;flex:1;max-width:420px;height:42px;
  border-radius:999px;border:1px solid var(--line);background:var(--glass);transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.header-search:focus-within{border-color:var(--star);box-shadow:0 0 0 3px rgba(47,211,196,.15)}
.header-search .search-icon{width:17px;height:17px;margin:0 4px 0 16px;color:var(--t3);flex-shrink:0}
.header-search input{
  flex:1;height:100%;border:0;background:transparent;color:var(--t1);font-size:13.5px;
  padding:0 10px;outline:none;min-width:0;
}
.header-search input::placeholder{color:var(--t3)}
.header-search button{
  height:32px;margin-right:5px;padding:0 16px;border:0;border-radius:999px;cursor:pointer;
  background:rgba(47,211,196,.14);color:var(--star);font-size:13px;font-weight:600;transition:background .2s var(--ease);
}
.header-search button:hover{background:rgba(47,211,196,.24)}
.topbar-actions{display:flex;align-items:center;gap:18px;margin-left:auto;flex-shrink:0}
.link-text{font-size:13.5px;color:var(--t2)}
.link-text:hover{color:var(--star)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
}
.btn-sm{height:38px;padding:0 18px;font-size:13.5px;border-radius:10px}
.btn-primary{background:var(--grad-cta);color:#04141c;box-shadow:0 8px 24px rgba(47,211,196,.28)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 10px 34px rgba(47,211,196,.42);filter:brightness(1.06);color:#04141c}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 14px rgba(47,211,196,.3)}
.btn-ghost{background:transparent;border-color:var(--line-2);color:var(--t1)}
.btn-ghost:hover{border-color:var(--star);color:var(--star)}
.btn-ghost:active{transform:translateY(1px)}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--star)}
.btn-text svg{width:16px;height:16px;transition:transform .22s var(--ease)}
.btn-text:hover svg{transform:translateX(3px)}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line-2);
  background:transparent;color:var(--t1);cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle svg{width:20px;height:20px}
.nav-toggle:hover{border-color:var(--star);color:var(--star)}

/* 频道行 */
.channel-bar{border-top:1px solid transparent;transition:border-color .25s var(--ease)}
.site-header.is-scrolled .channel-bar{border-top-color:var(--line)}
.channel-inner{display:flex;align-items:center;gap:26px;height:50px}
.channel-list{display:flex;align-items:center;gap:28px;flex-shrink:0}
.channel-list a{
  position:relative;display:inline-flex;align-items:center;height:50px;
  font-size:15px;font-weight:500;color:var(--t2);
}
.channel-list a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--grad-cta);transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease);
}
.channel-list a:hover{color:var(--t1)}
.channel-list a.active{color:var(--star)}
.channel-list a.active::after{transform:scaleX(1)}
.hot-chips{
  display:flex;align-items:center;gap:10px;margin-left:auto;padding-left:24px;
  border-left:1px solid var(--line);overflow-x:auto;scrollbar-width:none;
}
.hot-chips::-webkit-scrollbar{display:none}
.chip-label{font-size:12px;color:var(--t3);white-space:nowrap}
.chip{
  display:inline-flex;align-items:center;height:28px;padding:0 13px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.03);font-size:12.5px;color:var(--t2);white-space:nowrap;
  transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.chip:hover{border-color:rgba(47,211,196,.55);color:var(--star);background:rgba(47,211,196,.08)}

/* 抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(5,7,15,.66);opacity:0;pointer-events:none;transition:opacity .3s var(--ease);z-index:99}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;width:min(86vw,344px);height:100%;z-index:100;
  background:var(--ink-800);border-left:1px solid var(--line);padding:22px;
  transform:translateX(102%);transition:transform .32s var(--ease);overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{width:36px;height:36px;border-radius:9px;border:1px solid var(--line);background:transparent;color:var(--t1);cursor:pointer;display:inline-flex;align-items:center;justify-content:center}
.drawer-close svg{width:16px;height:16px}
.drawer-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:22px}
.drawer-nav a{padding:12px 12px;border-radius:10px;font-size:15px;color:var(--t2)}
.drawer-nav a:hover,.drawer-nav a.active{background:rgba(47,211,196,.1);color:var(--star)}
.drawer-sub{font-size:12px;color:var(--t3);margin:0 0 12px 12px}
.drawer-chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px}
.drawer .btn{width:100%}
body.no-scroll{overflow:hidden}

/* ============ Hero ============ */
.page-hero{
  position:relative;overflow:hidden;padding:62px 0 56px;
  border-bottom:1px solid var(--line);
  background:
    linear-gradient(180deg,rgba(5,7,15,.9) 0%,rgba(10,16,32,.95) 100%),
    url("/assets/images/backpic/back-2.png") center/cover no-repeat;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.05;
  background-image:radial-gradient(1px 1px at 20% 30%,#fff,transparent 60%),radial-gradient(1px 1px at 70% 70%,#fff,transparent 60%),radial-gradient(1px 1px at 45% 15%,#fff,transparent 60%);
}
.page-hero .grid-container{position:relative;z-index:1}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;
  border:1px solid rgba(108,140,255,.4);background:rgba(108,140,255,.1);
  font-size:12.5px;color:#B9C6FF;margin-bottom:18px;
}
.hero-badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--star)}
.page-hero h1{font-size:38px;line-height:1.3;margin-bottom:14px;max-width:840px}
.hero-sub{font-size:16px;color:var(--t2);max-width:640px;margin-bottom:28px}
.hero-tools{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-bottom:34px}
.hero-search{
  position:relative;display:flex;align-items:center;width:100%;max-width:460px;height:48px;
  border-radius:999px;border:1px solid var(--line-2);background:var(--glass);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.hero-search:focus-within{border-color:var(--star);box-shadow:0 0 0 3px rgba(47,211,196,.15)}
.hero-search svg{width:18px;height:18px;margin-left:18px;color:var(--t3);flex-shrink:0}
.hero-search input{flex:1;height:100%;border:0;background:transparent;outline:none;color:var(--t1);font-size:14px;padding:0 12px;min-width:0}
.hero-search input::placeholder{color:var(--t3)}
.hero-search button{height:36px;margin-right:6px;padding:0 20px;border:0;border-radius:999px;background:var(--grad-cta);color:#04141c;font-size:13.5px;font-weight:600;cursor:pointer;transition:filter .2s var(--ease)}
.hero-search button:hover{filter:brightness(1.06)}
.hero-chips{display:flex;flex-wrap:wrap;gap:9px}
.mini-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;max-width:900px}
.mini-stats li{
  padding:16px 18px;border-radius:14px;border:1px solid var(--line);background:rgba(20,30,51,.72);
}
.mini-stats strong{display:block;font-size:19px;color:var(--t1);font-family:"Inter","DIN Alternate",sans-serif;font-variant-numeric:tabular-nums;line-height:1.4}
.mini-stats span{display:block;font-size:12.5px;color:var(--t3);line-height:1.6}

/* ============ 主体 ============ */
.page-main{padding:70px 0 86px;position:relative;z-index:1}
.entry-layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:56px;align-items:start}
.toc{
  position:sticky;top:136px;padding:22px 20px;border-radius:var(--r-card);
  border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow);
}
.toc-title{font-size:13px;color:var(--t3);letter-spacing:.04em;margin-bottom:14px}
.toc-list{display:flex;flex-direction:column;gap:4px;margin-bottom:20px}
.toc-list a{
  display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:9px;
  font-size:14px;color:var(--t2);border-left:2px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.toc-list a:hover{background:rgba(47,211,196,.08);color:var(--t1)}
.toc-list a.active{background:rgba(47,211,196,.1);color:var(--star);border-left-color:var(--star)}
.toc-list a span.idx{font-size:12px;color:var(--t3);font-family:"Inter",sans-serif}
.toc-note{border-top:1px solid var(--line);padding-top:16px}
.toc-note p{font-size:12.5px;color:var(--t3);line-height:1.75;margin-bottom:12px}

.topic-section{
  padding:30px 0 6px;border-top:1px solid var(--line);margin-bottom:56px;
}
.topic-section:first-child{border-top:0;padding-top:0}
.topic-section h2{
  font-size:28px;line-height:1.35;margin-bottom:14px;position:relative;padding-left:16px;
}
.topic-section h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;background:var(--star);
}
.topic-lead{font-size:15.5px;color:var(--t2);margin-bottom:26px;max-width:760px}

.acc-group{display:flex;flex-direction:column;gap:12px}
.acc-item{
  border-radius:12px;border:1px solid var(--line);background:var(--surface);
  position:relative;overflow:hidden;transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.acc-item::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:2px;border-radius:2px;
  background:var(--star);opacity:0;transition:opacity .22s var(--ease);
}
.acc-item:hover{border-color:var(--line-2)}
.acc-item.is-open{border-color:rgba(47,211,196,.4);box-shadow:0 0 0 1px rgba(47,211,196,.18)}
.acc-item.is-open::before{opacity:1}
.acc-head{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 24px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;line-height:1.5;color:var(--t2);
  transition:color .2s var(--ease);
}
.acc-head:hover{color:var(--t1)}
.acc-item.is-open .acc-head{color:var(--t1)}
.acc-arrow{width:18px;height:18px;flex-shrink:0;color:var(--t3);transition:transform .25s var(--ease),color .25s var(--ease)}
.acc-item.is-open .acc-arrow{transform:rotate(180deg);color:var(--star)}
.acc-body{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.acc-item.is-open .acc-body{max-height:520px}
.acc-body p{padding:0 24px 20px;font-size:15px;line-height:1.85;color:var(--t2)}

.step-block{
  display:grid;grid-template-columns:1fr 1.15fr;gap:30px;align-items:center;
  padding:26px;border-radius:var(--r-panel);border:1px solid var(--line);
  background:var(--ink-800);margin-bottom:56px;
}
.step-figure{border-radius:14px;overflow:hidden;aspect-ratio:16/10;background:var(--ink-900)}
.step-figure img{width:100%;height:100%;object-fit:cover}
.step-body h2{font-size:24px;line-height:1.4;margin-bottom:12px}
.step-body>p{font-size:15px;color:var(--t2);margin-bottom:18px}
.step-list{display:flex;flex-direction:column;gap:14px}
.step-list li{display:flex;gap:14px;align-items:flex-start}
.step-num{
  width:26px;height:26px;flex-shrink:0;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;
  font-size:12.5px;font-weight:700;color:var(--star);border:1px solid rgba(47,211,196,.45);
  background:rgba(47,211,196,.1);font-family:"Inter",sans-serif;
}
.step-list strong{display:block;font-size:15px;color:var(--t1);font-weight:600;line-height:1.5}
.step-list span{display:block;font-size:13.5px;color:var(--t3);line-height:1.7}

/* FAQ 板块 */
.faq-section{padding:78px 0;background:var(--ink-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line);position:relative;z-index:1}
.section-head{margin-bottom:34px;max-width:720px}
.section-head .eyebrow{display:block;font-size:12.5px;letter-spacing:.08em;color:var(--star);margin-bottom:10px}
.section-head h2{font-size:28px;line-height:1.35;margin-bottom:12px}
.section-head p{font-size:15px;color:var(--t2)}
.faq-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;align-items:start}

/* CTA 窄条 */
.cta-band{padding:56px 0 76px;position:relative;z-index:1}
.cta-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  padding:28px 30px;border-radius:var(--r-panel);border:1px solid var(--line-2);
  background:linear-gradient(120deg,rgba(47,211,196,.1),rgba(108,140,255,.1)),var(--glass);
  box-shadow:0 0 0 1px rgba(47,211,196,.14),var(--shadow);
}
.cta-inner h2{font-size:22px;line-height:1.45;margin-bottom:6px}
.cta-inner p{font-size:14px;color:var(--t2)}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink-950);border-top:1px solid var(--line);position:relative;z-index:1;padding-top:64px;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,211,196,.5),transparent);
}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.15fr;gap:44px;padding-bottom:52px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:13.5px;line-height:1.85;color:var(--t3);max-width:330px;margin-bottom:20px}
.social-row{display:flex;gap:10px}
.social-row a{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--t2);
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.social-row a:hover{border-color:var(--star);color:var(--star);transform:translateY(-2px)}
.social-row svg{width:17px;height:17px}
.footer-col h4{font-size:14px;color:var(--t1);margin-bottom:16px;font-weight:600}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a,.footer-col span{font-size:13.5px;color:var(--t3);line-height:1.7}
.footer-col a:hover{color:var(--star)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  padding:20px 0 28px;border-top:1px solid var(--line);font-size:12.5px;color:var(--t3);
}
.footer-bottom .num{color:var(--t3)}

/* 渐入 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .4s var(--ease),transform .4s var(--ease)}
.reveal.in-view{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media screen and (max-width:1200px){
  :root{--maxw:1140px}
  .entry-layout{grid-template-columns:236px minmax(0,1fr);gap:40px}
  .footer-grid{grid-template-columns:1.6fr 1fr 1fr;gap:36px}
  .footer-col:last-child{grid-column:span 3}
}
@media screen and (max-width:992px){
  .header-search{display:none}
  .nav-toggle{display:inline-flex}
  .link-text{display:none}
  .hot-chips{display:none}
  .page-hero h1{font-size:32px}
  .mini-stats{grid-template-columns:repeat(2,1fr)}
  .entry-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .toc{position:static;top:auto}
  .toc-list{flex-direction:row;flex-wrap:wrap;gap:8px}
  .toc-list a{flex:1 1 auto;justify-content:center;border-left:0;border:1px solid var(--line);padding:8px 14px}
  .toc-list a.active{border-color:rgba(47,211,196,.5)}
  .step-block{grid-template-columns:1fr}
  .faq-list{grid-template-columns:minmax(0,1fr)}
  .channel-list{gap:20px}
}
@media screen and (max-width:768px){
  .grid-container{padding-left:16px;padding-right:16px}
  .topbar-inner{height:62px;gap:12px}
  .brand-text{font-size:16px}
  .brand-mark{width:30px;height:30px}
  .channel-inner{height:46px}
  .channel-list a{height:46px;font-size:14px}
  .channel-list{gap:16px;overflow-x:auto;scrollbar-width:none}
  .channel-list::-webkit-scrollbar{display:none}
  .page-hero{padding:44px 0 40px}
  .page-hero h1{font-size:27px}
  .hero-sub{font-size:15px;margin-bottom:22px}
  .hero-search{max-width:100%}
  .mini-stats{gap:12px}
  .mini-stats li{padding:13px 14px}
  .mini-stats strong{font-size:16px}
  .page-main{padding:48px 0 56px}
  .topic-section h2,.section-head h2{font-size:22px}
  .acc-head{font-size:16px;padding:16px 18px}
  .acc-body p{padding:0 18px 18px;font-size:14.5px}
  .step-block{padding:20px;margin-bottom:42px}
  .faq-section{padding:56px 0}
  .cta-band{padding:40px 0 56px}
  .cta-inner{padding:22px}
  .cta-inner h2{font-size:19px}
  .cta-actions .btn{flex:1 1 100%}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;padding-bottom:36px}
  .footer-brand{grid-column:span 2}
  .footer-brand p{max-width:none}
  .footer-col:last-child{grid-column:span 2}
  .footer-bottom{font-size:12px}
}
@media screen and (max-width:520px){
  .page-hero h1{font-size:24px}
  .hero-tools{gap:10px}
  .hero-search button{padding:0 14px}
  .mini-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .btn{width:100%}
  .topbar-actions .btn-sm{width:auto}
  .channel-list{gap:14px}
  .cta-actions{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1!important;transform:none!important}
}