/* roulang page: index */
:root{
  --bg:#07061A;
  --bg-alt:#0C0B22;
  --surface:#12102E;
  --glass:rgba(255,255,255,.05);
  --line:rgba(140,150,255,.16);
  --line-strong:rgba(140,150,255,.32);
  --primary:#3FD8FF;
  --primary-deep:#1B9FD8;
  --violet:#7C5CFF;
  --gold:#FFC46B;
  --text:#EAF0FF;
  --text-2:#A8B2D8;
  --text-3:#6E789E;
  --ok:#35E0A1;
  --warn:#FF6B8A;
  --grad:linear-gradient(135deg,#3FD8FF 0%,#7C5CFF 100%);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:22px;
  --r-pill:999px;
  --shadow:inset 0 1px 0 rgba(255,255,255,.06), 0 18px 48px -28px rgba(0,0,0,.85);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","MiSans","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:ui-monospace,"SF Mono","JetBrains Mono",var(--font-sans);
  --bs-body-bg:#07061A;
  --bs-body-color:#EAF0FF;
  --bs-primary:#3FD8FF;
  --bs-border-color:rgba(140,150,255,.16);
  --bs-border-radius:16px;
  --bs-link-color:#3FD8FF;
  --bs-link-hover-color:#7C5CFF;
  --bs-font-sans-serif:var(--font-sans);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:132px;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--font-sans);font-size:16px;line-height:1.8;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color 180ms var(--ease),border-color 180ms var(--ease),background-color 180ms var(--ease)}
a:hover{color:#8fe6ff}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;color:var(--text)}
p{margin:0 0 .9em}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px!important;padding-right:24px!important}
@media (min-width:1400px){.container{max-width:1280px}}
.row{--bs-gutter-x:24px;--bs-gutter-y:24px}
@media (min-width:992px){.row{--bs-gutter-x:32px;--bs-gutter-y:32px}}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.01em;line-height:1.4;cursor:pointer;
  text-decoration:none;background:transparent;color:var(--text);
  transition:transform 180ms var(--ease),box-shadow 180ms var(--ease),background-color 180ms var(--ease),border-color 180ms var(--ease),color 180ms var(--ease);
}
.btn-main{
  background:var(--grad);color:#050418;font-weight:700;
  box-shadow:0 0 0 1px rgba(63,216,255,.35),0 14px 34px -14px rgba(63,216,255,.65);
}
.btn-main:hover{color:#050418;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(63,216,255,.5),0 20px 42px -14px rgba(63,216,255,.8)}
.btn-main:active{transform:translateY(1px)}
.btn-ghost{border-color:var(--line-strong);color:var(--text)}
.btn-ghost:hover{border-color:var(--primary);background:rgba(255,255,255,.08);color:var(--text)}
.btn-text{color:var(--primary);padding:8px 4px;font-size:15px;font-weight:600}
.btn-text:hover{color:#8fe6ff;text-decoration:underline;text-underline-offset:5px}
.btn-sm{padding:9px 18px;font-size:14px}

/* ===== 徽章 / pill ===== */
.pill-cat,.badge-soft{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;
  border-radius:var(--r-pill);font-size:13px;line-height:1;letter-spacing:.02em;
  background:var(--glass);border:1px solid rgba(255,255,255,.1);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  color:var(--primary);
}
.badge-gold{color:var(--gold);border-color:rgba(255,196,107,.32)}

/* ===== 双层导航 ===== */
.site-header{position:sticky;top:0;z-index:1000}
.nav-top{
  background:rgba(7,6,26,.86);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);transition:background-color 200ms var(--ease);
}
.nav-top-inner{display:flex;align-items:center;gap:20px;height:64px;transition:height 200ms var(--ease)}
.site-header.compact .nav-top{background:rgba(7,6,26,.96)}
.site-header.compact .nav-top-inner{height:56px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{width:34px;height:34px;flex:0 0 auto}
.brand-text{font-size:19px;font-weight:700;letter-spacing:-.01em}
.brand-text em{font-style:normal;color:var(--primary)}
.nav-main{display:flex;align-items:center;gap:4px;flex:1 1 auto;overflow:hidden}
.nav-main a{
  padding:8px 12px;border-radius:var(--r-sm);font-size:15px;color:var(--text-2);white-space:nowrap;
}
.nav-main a:hover{color:var(--text);background:rgba(255,255,255,.06)}
.nav-main a.active{color:var(--primary)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex:0 0 auto}
.search-wrap{position:relative}
.search-toggle{
  width:40px;height:40px;border-radius:var(--r-pill);border:1px solid var(--line);
  background:transparent;color:var(--text-2);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  transition:border-color 180ms var(--ease),color 180ms var(--ease),background-color 180ms var(--ease);
}
.search-toggle:hover{border-color:var(--primary);color:var(--primary);background:rgba(63,216,255,.08)}
.search-box{
  position:absolute;right:0;top:50%;transform:translateY(-50%);
  width:0;opacity:0;pointer-events:none;transition:width 220ms var(--ease),opacity 180ms var(--ease);
}
.search-wrap.open .search-box{width:236px;opacity:1;pointer-events:auto}
.search-box input{
  width:100%;height:40px;border-radius:var(--r-pill);padding:0 16px;
  background:#0C0B22;border:1px solid var(--line);color:var(--text);font-size:14px;
  transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.search-box input::placeholder{color:var(--text-3)}
.search-box input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(63,216,255,.12)}
.nav-channels{
  background:#0C0B22;border-bottom:1px solid rgba(140,150,255,.12);
  position:relative;
}
.channels-scroll{
  display:flex;align-items:center;gap:8px;height:48px;overflow-x:auto;
  scrollbar-width:none;-ms-overflow-style:none;
}
.channels-scroll::-webkit-scrollbar{display:none}
.channel-pill{
  flex:0 0 auto;display:inline-flex;align-items:center;height:32px;padding:0 16px;
  border-radius:var(--r-pill);border:1px solid transparent;background:transparent;
  color:var(--text-2);font-size:14px;white-space:nowrap;
}
.channel-pill:hover{background:rgba(255,255,255,.08);color:var(--text)}
.channel-pill.active{
  color:var(--primary);border-color:rgba(63,216,255,.55);
  background:linear-gradient(135deg,rgba(63,216,255,.14),rgba(124,92,255,.14));
  box-shadow:inset 0 0 18px rgba(63,216,255,.18);
}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--line);
  background:transparent;color:var(--text);align-items:center;justify-content:center;cursor:pointer;
}

/* ===== Hero ===== */
.hero{position:relative;overflow:hidden;padding:clamp(48px,7vw,88px) 0 clamp(40px,5vw,64px)}
.hero-bg{
  position:absolute;inset:0;z-index:0;
  background:
    radial-gradient(680px 380px at 12% 8%,rgba(63,216,255,.16),transparent 70%),
    radial-gradient(720px 420px at 88% 24%,rgba(124,92,255,.18),transparent 72%),
    radial-gradient(2px 2px at 18% 32%,rgba(255,255,255,.75),transparent 100%),
    radial-gradient(1.6px 1.6px at 32% 68%,rgba(255,255,255,.55),transparent 100%),
    radial-gradient(1.8px 1.8px at 58% 22%,rgba(255,255,255,.6),transparent 100%),
    radial-gradient(1.4px 1.4px at 74% 62%,rgba(255,255,255,.5),transparent 100%),
    radial-gradient(1.6px 1.6px at 88% 40%,rgba(255,255,255,.55),transparent 100%);
}
.hero .container{position:relative;z-index:1}
.hero h1{
  font-size:clamp(30px,4.6vw,52px);line-height:1.16;letter-spacing:-.02em;margin:18px 0 16px;
  max-width:15em;
}
.hero h1 span{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:17px;color:var(--text-2);max-width:34em;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:8px 28px;padding:18px 24px;
  border-radius:var(--r-lg);background:var(--glass);border:1px solid rgba(255,255,255,.1);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.hero-stats li{display:flex;flex-direction:column;gap:2px}
.hero-stats strong{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:24px;font-weight:700;
  color:var(--primary);text-shadow:0 0 22px rgba(63,216,255,.45);line-height:1.2;
}
.hero-stats span{font-size:13px;color:var(--text-3);line-height:1.4}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg);
  border:1px solid var(--line);box-shadow:var(--shadow);
}
.hero-visual::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-lg);
  background:linear-gradient(180deg,rgba(7,6,26,.1) 0%,rgba(7,6,26,.72) 100%);
  pointer-events:none;
}
.orbit{position:absolute;inset:-6% -8% auto auto;width:230px;height:230px;z-index:2;pointer-events:none;opacity:.85}

/* 锚点快捷条 */
.anchor-bar{display:flex;flex-wrap:wrap;gap:10px;margin-top:36px}
.anchor-bar a{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);color:var(--text-2);font-size:14px;
}
.anchor-bar a:hover{border-color:var(--primary);color:var(--primary)}
.anchor-bar a.current{border-color:rgba(63,216,255,.6);color:var(--primary);background:rgba(63,216,255,.1)}

/* ===== 通用板块 ===== */
.section{padding-block:clamp(56px,8vw,112px);position:relative}
.section-alt{background:var(--bg-alt)}
.section-head{max-width:640px}
.section-head h2{font-size:clamp(24px,2.6vw,36px);line-height:1.25;margin-bottom:14px}
.section-head p{color:var(--text-2);margin:0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.08em;
  color:var(--primary);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--grad)}

/* ===== 卖点：左 sticky + 右编号列表 ===== */
.feature-aside{position:sticky;top:140px}
.feature-aside h2{font-size:clamp(24px,2.6vw,34px);line-height:1.25;margin-bottom:14px}
.feature-aside p{color:var(--text-2);font-size:15px}
.feature-list{border-top:1px solid var(--line)}
.feature-item{
  display:flex;gap:20px;padding:26px 20px;border-bottom:1px solid var(--line);
  position:relative;transition:background-color 180ms var(--ease);
}
.feature-item::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:3px;border-radius:2px;
  background:var(--grad);opacity:0;transition:opacity 180ms var(--ease);
}
.feature-item:hover{background:rgba(255,255,255,.04)}
.feature-item:hover::before{opacity:1}
.feature-num{
  font-family:var(--font-num);font-size:30px;font-weight:700;line-height:1;flex:0 0 auto;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.feature-body{flex:1 1 auto;min-width:0}
.feature-body h3{font-size:17px;margin-bottom:6px}
.feature-body p{color:var(--text-2);font-size:15px;margin:0}
.feature-thumb{
  flex:0 0 auto;width:120px;height:120px;border-radius:var(--r-md);overflow:hidden;
  border:1px solid var(--line);
}
.feature-thumb img{width:100%;height:100%;object-fit:cover}

/* ===== 演示 Tabs ===== */
.demo-shell{
  border-radius:var(--r-lg);border:1px solid var(--line);background:var(--surface);
  box-shadow:var(--shadow);overflow:hidden;
}
.demo-window{display:flex;align-items:center;gap:8px;padding:12px 18px;border-bottom:1px solid var(--line);background:#0C0B22}
.demo-window i{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.16);display:inline-block}
.demo-window span{margin-left:8px;font-size:13px;color:var(--text-3)}
.demo-pane{aspect-ratio:16/9;overflow:hidden;position:relative}
.demo-pane img{width:100%;height:100%;object-fit:cover}
.demo-caption{padding:18px 22px;border-top:1px solid var(--line);color:var(--text-2);font-size:15px;margin:0}
.nav-pills-custom{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px}
.nav-pills-custom button{
  height:38px;padding:0 20px;border-radius:var(--r-pill);border:1px solid var(--line);
  background:transparent;color:var(--text-2);font-size:14px;font-weight:600;cursor:pointer;
  transition:all 180ms var(--ease);
}
.nav-pills-custom button:hover{color:var(--text);border-color:var(--line-strong)}
.nav-pills-custom button.active{color:#050418;background:var(--grad);border-color:transparent}
.tab-fade{animation:fadeIn 240ms var(--ease)}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}

/* ===== 证据横滚 ===== */
.proof-scroll{
  display:flex;gap:20px;overflow-x:auto;padding:6px 4px 22px;
  scroll-snap-type:x mandatory;scrollbar-width:thin;
}
.proof-scroll::-webkit-scrollbar{height:6px}
.proof-scroll::-webkit-scrollbar-thumb{background:rgba(140,150,255,.3);border-radius:999px}
.proof-card{
  flex:0 0 320px;scroll-snap-align:start;padding:24px;border-radius:var(--r-md);
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);
}
.proof-card strong{
  display:block;font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:34px;line-height:1.1;color:var(--primary);margin-bottom:8px;
  text-shadow:0 0 20px rgba(63,216,255,.35);
}
.proof-card h3{font-size:16px;margin-bottom:8px}
.proof-card p{font-size:14px;color:var(--text-2);margin:0}
.proof-card .src{display:block;margin-top:12px;font-size:13px;color:var(--text-3)}
.logo-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px}
.logo-chip{
  display:inline-flex;align-items:center;gap:8px;height:36px;padding:0 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);color:var(--text-2);font-size:13px;
}

/* ===== 资讯列表（CMS） ===== */
.news-grid .news-card{
  display:flex;flex-direction:column;width:100%;border-radius:var(--r-md);overflow:hidden;
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);color:var(--text);
  transition:transform 180ms var(--ease),border-color 180ms var(--ease);
}
.news-grid .news-card:hover{transform:translateY(-4px);border-color:rgba(63,216,255,.45);color:var(--text)}
.news-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#12102E;min-height:150px}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 300ms var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-thumb .pill-cat{position:absolute;left:12px;top:12px}
.news-body{padding:20px;display:flex;flex-direction:column;flex:1 1 auto}
.news-title{
  font-size:17px;line-height:1.5;margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-sum{
  font-size:14px;color:var(--text-2);margin:0 0 16px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:13px;color:var(--text-3);
  padding-top:14px;border-top:1px solid rgba(140,150,255,.12);
}
.news-arrow{transition:transform 180ms var(--ease);color:var(--primary)}
.news-card:hover .news-arrow{transform:translateX(4px)}
.empty-state{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  border-radius:var(--r-lg);border:1px dashed var(--line-strong);background:rgba(18,16,46,.6);text-align:center;padding:32px;
}
.empty-state p{color:var(--text-2);margin:0}

/* ===== 价格 ===== */
.price-row{display:flex;gap:24px;align-items:stretch}
.price-card{
  flex:1 1 0;display:flex;flex-direction:column;padding:26px;border-radius:var(--r-md);
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);
}
.price-card h3{font-size:17px;margin-bottom:8px}
.price-card .desc{font-size:14px;color:var(--text-2);min-height:44px}
.price-amount{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:32px;font-weight:700;
  color:var(--text);margin:14px 0 4px;line-height:1.1;
}
.price-amount small{font-size:13px;color:var(--text-3);font-weight:400;margin-left:6px}
.price-list{margin:18px 0 24px;font-size:14px;color:var(--text-2)}
.price-list li{position:relative;padding-left:20px;margin-bottom:9px}
.price-list li::before{
  content:"";position:absolute;left:2px;top:10px;width:7px;height:7px;border-radius:2px;
  background:var(--grad);transform:rotate(45deg);
}
.price-card.main{
  flex:2.6 1 0;padding:34px;border-radius:var(--r-lg);
  background:rgba(255,255,255,.05);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid transparent;
  background-image:linear-gradient(rgba(12,11,34,.85),rgba(12,11,34,.85)),var(--grad);
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:0 24px 60px -30px rgba(63,216,255,.5);
}
.price-card.main .price-amount{font-size:42px;color:var(--primary)}
.price-card .btn{margin-top:auto;width:100%}
.price-badge{margin-bottom:14px}

/* ===== FAQ ===== */
.faq-aside{position:sticky;top:140px}
.faq-aside h2{font-size:clamp(24px,2.6vw,32px);line-height:1.25;margin-bottom:14px}
.faq-aside p{color:var(--text-2);font-size:15px}
.faq-aside .btn{margin-top:12px}
.accordion-custom .accordion-item{
  background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.1);border-radius:var(--r-md)!important;
  margin-bottom:14px;overflow:hidden;position:relative;
}
.accordion-custom .accordion-item::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:2px;
  background:var(--grad);opacity:0;transition:opacity 180ms var(--ease);
}
.accordion-custom .accordion-item:has(.accordion-button:not(.collapsed)){border-color:rgba(63,216,255,.4)}
.accordion-custom .accordion-item:has(.accordion-button:not(.collapsed))::before{opacity:1}
.accordion-custom .accordion-button{
  background:transparent;color:var(--text);font-size:16px;font-weight:600;padding:20px 24px;
  box-shadow:none;gap:12px;
}
.accordion-custom .accordion-button:not(.collapsed){color:var(--primary)}
.accordion-custom .accordion-button:focus{box-shadow:none;outline:none;border-color:transparent}
.accordion-custom .accordion-button::after{
  content:"";background:none;width:14px;height:14px;flex:0 0 auto;
  border-right:1.5px solid var(--primary);border-bottom:1.5px solid var(--primary);
  transform:rotate(45deg);margin-left:auto;transition:transform 200ms var(--ease);position:relative;top:-3px;
}
.accordion-custom .accordion-button:not(.collapsed)::after{transform:rotate(225deg);top:2px}
.accordion-custom .accordion-body{padding:0 24px 22px;color:var(--text-2);font-size:15px}

/* ===== CTA ===== */
.cta-shell{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  background:rgba(255,255,255,.05);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.1);padding:clamp(28px,4vw,52px);
  display:flex;flex-wrap:wrap;gap:26px;align-items:center;justify-content:space-between;
}
.cta-shell::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:url(/assets/images/backpic/back-2.png) center/cover no-repeat;
  opacity:.16;
}
.cta-shell>*{position:relative;z-index:1}
.cta-shell h2{font-size:clamp(22px,2.4vw,32px);margin-bottom:10px}
.cta-shell p{color:var(--text-2);margin:0;max-width:40em}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ===== 页脚 ===== */
.site-footer{background:#0C0B22;border-top:1px solid var(--line);padding-top:clamp(40px,6vw,72px)}
.footer-bar{
  display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between;
  padding:22px 26px;border-radius:var(--r-lg);margin-bottom:44px;
  background:rgba(255,255,255,.05);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.1);
}
.footer-bar strong{display:block;font-size:17px;margin-bottom:4px}
.footer-bar span{font-size:14px;color:var(--text-2)}
.subscribe{display:flex;gap:10px;flex-wrap:wrap}
.subscribe input{
  height:44px;min-width:220px;padding:0 16px;border-radius:var(--r-sm);
  background:#0C0B22;border:1px solid var(--line);color:var(--text);font-size:14px;
  transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.subscribe input::placeholder{color:var(--text-3)}
.subscribe input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(63,216,255,.12)}
.footer-cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:44px}
.footer-cols h4{font-size:15px;margin-bottom:16px}
.footer-cols p,.footer-cols a,.footer-cols li{font-size:14px;color:var(--text-2)}
.footer-cols ul li{margin-bottom:10px}
.footer-cols a:hover{color:var(--primary);padding-left:2px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-contact li{display:flex;gap:8px}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;font-size:13px;color:var(--text-3);
}

/* ===== 浮动 CTA ===== */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:1200;display:inline-flex;align-items:center;gap:10px;
  height:52px;padding:0 24px;border-radius:var(--r-pill);background:var(--grad);color:#050418;
  font-weight:700;font-size:15px;box-shadow:0 18px 40px -16px rgba(63,216,255,.75);
  opacity:0;pointer-events:none;transform:translateY(12px);
  transition:opacity 220ms var(--ease),transform 220ms var(--ease);
}
.float-cta.show{opacity:1;pointer-events:auto;transform:translateY(0)}
.float-cta:hover{color:#050418;transform:translateY(-1px)}

/* ===== 响应式 ===== */
@media (max-width:991.98px){
  .nav-main{display:none}
  .nav-toggle{display:inline-flex}
  .feature-aside,.faq-aside{position:static;margin-bottom:28px}
  .footer-cols{grid-template-columns:1fr 1fr;gap:26px}
  .price-row{flex-wrap:wrap}
  .price-card{flex:1 1 46%}
  .price-card.main{flex:1 1 100%;order:-1}
  .hero-visual{margin-top:8px}
  .orbit{width:170px;height:170px}
}
@media (max-width:767.98px){
  html{scroll-padding-top:112px}
  .nav-actions .btn-main{display:none}
  .search-wrap.open .search-box{width:180px;right:48px}
  .footer-cols{grid-template-columns:1fr}
  .price-card{flex:1 1 100%}
  .feature-item{padding:22px 14px;gap:14px}
  .feature-thumb{width:88px;height:88px}
  .hero-stats{gap:8px 22px;padding:16px 18px}
  .proof-card{flex:0 0 268px}
  .float-cta{
    right:0;left:0;bottom:0;width:100%;justify-content:center;border-radius:0;
    height:56px;padding-bottom:env(safe-area-inset-bottom);
  }
  .cta-shell{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{animation-duration:.001ms!important;transition-duration:.001ms!important}
}

/* roulang page: article */
/* ============ 设计变量 ============ */
:root{
  --bg:#07061A;
  --bg-alt:#0C0B22;
  --bg-deep:#050414;
  --panel:#12102E;
  --glass:rgba(255,255,255,.05);
  --glass-line:rgba(255,255,255,.10);
  --line:rgba(140,150,255,.16);
  --line-strong:rgba(140,150,255,.32);
  --cyan:#3FD8FF;
  --cyan-deep:#1B9FD8;
  --violet:#7C5CFF;
  --gold:#FFC46B;
  --text:#EAF0FF;
  --text-2:#A8B2D8;
  --text-3:#6E789E;
  --ok:#35E0A1;
  --warn:#FF6B8A;
  --grad:linear-gradient(135deg,#3FD8FF 0%,#7C5CFF 100%);
  --r-sm:10px;--r-md:16px;--r-lg:22px;--r-pill:999px;
  --shadow:inset 0 1px 0 rgba(255,255,255,.06),0 18px 48px -28px rgba(0,0,0,.85);
  --shadow-lift:inset 0 1px 0 rgba(255,255,255,.09),0 28px 62px -30px rgba(0,0,0,.92);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","MiSans","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:ui-monospace,"SF Mono","JetBrains Mono",var(--font-sans);
  --nav-h:112px;
  /* Bootstrap 变量重塑 */
  --bs-body-bg:var(--bg);
  --bs-body-color:var(--text);
  --bs-primary:var(--cyan);
  --bs-primary-rgb:63,216,255;
  --bs-border-color:var(--line);
  --bs-border-radius:var(--r-md);
  --bs-link-color:var(--cyan);
  --bs-link-hover-color:#ffffff;
  --bs-font-sans-serif:var(--font-sans);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:132px;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--font-sans);font-size:16px;line-height:1.8;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
::selection{background:rgba(63,216,255,.28)}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}
.container{max-width:1200px;padding-inline:24px;margin-inline:auto}
@media (min-width:1400px){.container{max-width:1280px}}
@media (max-width:767px){.container{padding-inline:20px}}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}
.muted{color:var(--text-2)}
.dim{color:var(--text-3)}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);font-size:15px;font-weight:600;letter-spacing:.01em;
  padding:12px 26px;border:1px solid transparent;cursor:pointer;
  transition:transform 180ms var(--ease),box-shadow 180ms var(--ease),background 180ms var(--ease),border-color 180ms var(--ease),color 180ms var(--ease);
  white-space:nowrap;text-align:center}
.btn-main{background:var(--grad);color:#fff;text-shadow:0 1px 2px rgba(6,17,31,.35);
  box-shadow:0 0 26px -8px rgba(63,216,255,.75)}
.btn-main:hover{color:#fff;filter:brightness(1.08);box-shadow:0 0 34px -6px rgba(124,92,255,.85);transform:translateY(-1px)}
.btn-main:active{transform:translateY(1px);filter:brightness(.96)}
.btn-line{background:transparent;border-color:var(--line-strong);color:var(--text)}
.btn-line:hover{border-color:var(--cyan);background:rgba(255,255,255,.08);color:#fff;transform:translateY(-1px)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-text{background:none;border:0;padding:0;color:var(--cyan);font-weight:600}
.btn-text:hover{text-decoration:underline;text-underline-offset:4px}

/* ============ 头部导航 ============ */
.site-header{position:sticky;top:0;z-index:1030}
.nav-top{background:rgba(7,6,26,.92);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);transition:background 200ms var(--ease),box-shadow 200ms var(--ease)}
.site-header.is-scrolled .nav-top{background:rgba(5,4,20,.97);box-shadow:0 14px 40px -30px rgba(0,0,0,.95)}
.nav-top-inner{position:relative;display:flex;align-items:center;gap:20px;height:64px;transition:height 200ms var(--ease)}
.site-header.is-scrolled .nav-top-inner{height:56px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:34px;height:34px}
.brand-text{font-size:19px;font-weight:700;letter-spacing:-.01em;color:var(--text)}
.brand-text em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-main{display:flex;align-items:center;gap:4px;flex:1 1 auto}
.nav-main a{position:relative;padding:8px 12px;font-size:15px;color:var(--text-2);border-radius:var(--r-pill);
  transition:color 160ms var(--ease),background 160ms var(--ease)}
.nav-main a:hover{color:var(--text);background:rgba(255,255,255,.06)}
.nav-main a.active{color:#fff}
.nav-main a.active::after{content:"";position:absolute;left:50%;bottom:1px;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:var(--grad);box-shadow:0 0 10px rgba(63,216,255,.8)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-wrap{position:relative;display:flex;align-items:center}
.search-toggle{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;
  border-radius:var(--r-pill);border:1px solid var(--line);background:transparent;color:var(--text-2);cursor:pointer;
  transition:color 160ms var(--ease),border-color 160ms var(--ease),background 160ms var(--ease)}
.search-toggle:hover{color:var(--cyan);border-color:var(--line-strong);background:rgba(255,255,255,.05)}
.search-box{width:0;overflow:hidden;transition:width 220ms var(--ease),opacity 200ms var(--ease);opacity:0}
.search-wrap.open .search-box{width:230px;opacity:1;margin-left:8px}
.search-box input{width:100%;height:38px;padding:0 16px;border-radius:var(--r-pill);
  background:var(--bg-alt);border:1px solid var(--line);color:var(--text);font-size:14px}
.search-box input::placeholder{color:var(--text-3)}
.search-box input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 4px rgba(63,216,255,.12)}
.nav-toggle{display:none;align-items:center;justify-content:center;width:38px;height:38px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:transparent;color:var(--text);cursor:pointer}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.nav-channels{background:var(--bg-deep);border-bottom:1px solid rgba(140,150,255,.12)}
.channels-inner{display:flex;align-items:center;gap:6px;height:48px;overflow-x:auto;scrollbar-width:none;
  -webkit-overflow-scrolling:touch}
.channels-inner::-webkit-scrollbar{display:none}
.chan-pill{flex:0 0 auto;padding:6px 16px;border-radius:var(--r-pill);font-size:14px;color:var(--text-2);
  border:1px solid transparent;transition:all 160ms var(--ease)}
.chan-pill:hover{background:rgba(255,255,255,.08);color:var(--text)}
.chan-pill.active{color:var(--cyan);border-color:rgba(63,216,255,.55);background:rgba(63,216,255,.06);
  box-shadow:inset 0 0 16px -6px rgba(63,216,255,.7)}

/* ============ 面包屑 ============ */
.crumb-bar{background:var(--bg);border-bottom:1px solid var(--line)}
.crumb{display:flex;align-items:center;gap:8px;height:44px;font-size:13px;color:var(--text-3);
  overflow:hidden;flex-wrap:nowrap}
.crumb a{color:var(--text-3);transition:color 160ms var(--ease)}
.crumb a:hover{color:var(--cyan)}
.crumb .sep{color:rgba(110,120,158,.7)}
.crumb .now{color:var(--text-2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:52vw}

/* ============ 星云背景层 ============ */
.aurora{position:relative;overflow:hidden}
.aurora::before,.aurora::after{content:"";position:absolute;border-radius:50%;pointer-events:none;z-index:0}
.aurora::before{width:620px;height:620px;left:-160px;top:-260px;
  background:radial-gradient(circle,rgba(63,216,255,.18),transparent 66%)}
.aurora::after{width:560px;height:560px;right:-140px;top:-120px;
  background:radial-gradient(circle,rgba(124,92,255,.18),transparent 68%)}

/* ============ 文章页 ============ */
.article-wrap{padding-block:40px 72px;position:relative;z-index:1}
.article-head{margin-bottom:26px}
.article-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.pill{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 14px;border-radius:var(--r-pill);
  font-size:13px;line-height:1;background:var(--glass);border:1px solid var(--glass-line);color:var(--cyan)}
.pill.gold{color:var(--gold)}
.article-head h1{font-size:clamp(26px,3.4vw,42px);font-weight:700;line-height:1.28;letter-spacing:-.02em;
  margin-bottom:18px;color:#fff}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:10px;font-size:13px;color:var(--text-3)}
.article-meta .dot{color:rgba(110,120,158,.6)}
.article-meta time{font-family:var(--font-num);font-variant-numeric:tabular-nums;color:var(--text-2)}
.share-group{display:flex;align-items:center;gap:8px;margin-left:auto}
.share-btn{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;
  border:1px solid var(--line-strong);background:transparent;color:var(--text-2);cursor:pointer;
  transition:all 160ms var(--ease)}
.share-btn:hover{color:var(--cyan);border-color:var(--cyan);transform:translateY(-2px)}
.article-hero{margin:0 0 34px;border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line);
  background:var(--bg-alt);aspect-ratio:21/9}
.article-hero img{width:100%;height:100%;object-fit:cover;opacity:.92}

.article-body{font-size:17px;line-height:1.95;color:var(--text);overflow-wrap:anywhere}
.article-body p{margin:0 0 18px}
.article-body h2{position:relative;font-size:clamp(20px,2vw,26px);font-weight:700;line-height:1.4;
  margin:40px 0 16px;padding-left:16px;color:#fff}
.article-body h2::before{content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:2px;
  background:var(--grad);box-shadow:0 0 16px rgba(63,216,255,.6)}
.article-body h3{font-size:18px;font-weight:600;margin:28px 0 12px;color:#fff}
.article-body h4{font-size:17px;font-weight:600;margin:22px 0 10px;color:var(--text)}
.article-body ul{margin:0 0 18px}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:8px}
.article-body ul li::before{content:"";position:absolute;left:3px;top:.78em;width:7px;height:7px;border-radius:2px;
  background:var(--grad);transform:rotate(45deg)}
.article-body ol{margin:0 0 18px;padding-left:22px;list-style:decimal}
.article-body ol li{margin-bottom:8px}
.article-body ol li::marker{color:var(--cyan);font-family:var(--font-num)}
.article-body a{color:var(--cyan);border-bottom:1px solid rgba(63,216,255,.36);transition:all 160ms var(--ease)}
.article-body a:hover{color:#fff;border-color:#fff}
.article-body strong{color:#fff;font-weight:600}
.article-body blockquote{margin:24px 0;padding:18px 22px;background:var(--panel);border:1px solid var(--line);
  border-left:3px solid var(--cyan);border-radius:0 var(--r-md) var(--r-md) 0;color:var(--text-2);font-size:16px}
.article-body img{max-width:100%;height:auto;margin:22px auto;border-radius:var(--r-md);border:1px solid var(--line)}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;
  border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}
.article-body thead th{background:var(--bg-alt);color:#fff;font-weight:600}
.article-body tbody tr:last-child td{border-bottom:0}
.article-body tbody tr:hover{background:rgba(63,216,255,.06)}
.article-body pre{background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--r-md);
  padding:16px 18px;overflow-x:auto;font-family:var(--font-num);font-size:14px;line-height:1.7;margin:22px 0}
.article-body code{font-family:var(--font-num);font-size:.92em;color:#9FE9FF;
  background:rgba(63,216,255,.08);padding:2px 6px;border-radius:6px}
.article-body pre code{background:none;padding:0;color:var(--text)}
@media (max-width:767px){
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
}

/* 空态 */
.article-empty{min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;text-align:center;padding:40px 24px;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--r-md);box-shadow:var(--shadow)}
.article-empty svg{opacity:.8}
.article-empty h2{font-size:20px;font-weight:700;color:#fff;margin:0;padding:0}
.article-empty h2::before{display:none}
.article-empty p{color:var(--text-2);font-size:15px;margin:0;max-width:460px}

/* 文末 */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:36px 0 0;padding-top:26px;border-top:1px solid var(--line)}
.tag-row .tag{padding:7px 16px;border-radius:var(--r-pill);font-size:13px;color:var(--text-2);
  background:var(--panel);border:1px solid var(--line);transition:all 160ms var(--ease)}
.tag-row .tag:hover{color:var(--cyan);border-color:var(--line-strong);transform:translateY(-2px)}
.dual-nav{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:26px}
.dual-card{display:block;padding:20px 22px;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--r-md);box-shadow:var(--shadow);transition:all 200ms var(--ease)}
.dual-card:hover{transform:translateY(-4px);border-color:rgba(63,216,255,.45);box-shadow:var(--shadow-lift)}
.dual-card span{display:block;font-size:13px;color:var(--text-3);margin-bottom:6px}
.dual-card strong{display:block;font-size:16px;color:#fff;font-weight:600;line-height:1.5}
.dual-card.next{text-align:right}

/* 侧栏 */
.side-sticky{position:sticky;top:132px;display:flex;flex-direction:column;gap:20px}
@media (max-width:1199px){.side-sticky{position:static}}
.side-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px;box-shadow:var(--shadow)}
.side-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-title::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--grad)}
.toc-list{max-height:320px;overflow:auto;margin:-4px 0}
.toc-list a{display:block;padding:8px 12px 8px 14px;font-size:14px;color:var(--text-2);
  border-left:2px solid transparent;border-radius:0 8px 8px 0;transition:all 160ms var(--ease)}
.toc-list a:hover{background:rgba(255,255,255,.05);color:var(--text)}
.toc-list a.active{color:var(--cyan);border-left-color:var(--cyan);background:rgba(63,216,255,.08)}
.rec-item{display:flex;gap:12px;padding:10px 0;border-bottom:1px solid var(--line);transition:all 160ms var(--ease)}
.rec-item:last-child{border-bottom:0;padding-bottom:0}
.rec-item:hover{transform:translateX(4px)}
.rec-thumb{flex:0 0 76px;width:76px;aspect-ratio:4/3;border-radius:var(--r-sm);overflow:hidden;
  background:var(--bg-alt);border:1px solid var(--line)}
.rec-thumb img{width:100%;height:100%;object-fit:cover}
.rec-item strong{display:block;font-size:14px;font-weight:600;color:var(--text);line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-item small{display:block;font-size:12px;color:var(--text-3);margin-top:4px}

/* 留言表单 */
.comment-block{margin-top:56px;padding:28px;background:var(--bg-alt);border:1px solid var(--line);
  border-radius:var(--r-lg)}
.comment-block h2{font-size:22px;font-weight:700;color:#fff;margin-bottom:8px}
.comment-block > p{color:var(--text-2);font-size:14px;margin-bottom:20px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:13px;color:var(--text-2)}
.field input,.field textarea{background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:12px 16px;font-size:15px;transition:all 160ms var(--ease)}
.field textarea{min-height:130px;resize:vertical;line-height:1.8}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 4px rgba(63,216,255,.12)}
.field.full{grid-column:1/-1}
.form-foot{display:flex;align-items:center;gap:16px;margin-top:18px;flex-wrap:wrap}
.form-tip{font-size:13px;color:var(--ok);opacity:0;transition:opacity 200ms var(--ease)}
.form-tip.show{opacity:1}

/* CTA 带 */
.cta-band{margin-top:64px}
.cta-inner{position:relative;overflow:hidden;border-radius:var(--r-lg);border:1px solid var(--line);
  padding:clamp(28px,5vw,52px);display:flex;align-items:center;justify-content:space-between;gap:28px;
  background:linear-gradient(180deg,rgba(12,11,34,.92),rgba(7,6,26,.96)),url(/assets/images/backpic/back-2.png) center/cover no-repeat;
  box-shadow:var(--shadow)}
.cta-inner::before{content:"";position:absolute;width:520px;height:520px;right:-160px;top:-260px;border-radius:50%;
  background:radial-gradient(circle,rgba(124,92,255,.20),transparent 68%)}
.cta-copy{position:relative;z-index:1;max-width:620px}
.cta-copy h2{font-size:clamp(22px,2.4vw,32px);font-weight:700;color:#fff;line-height:1.35;margin-bottom:10px}
.cta-copy p{color:var(--text-2);font-size:15px}
.cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap}

/* 浮动 CTA */
.float-cta{position:fixed;right:24px;bottom:26px;z-index:1040;display:flex;align-items:center;gap:14px;
  padding:10px 12px 10px 22px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.05);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--glass-line);box-shadow:var(--shadow-lift);
  opacity:0;visibility:hidden;transform:translateY(14px);transition:all 240ms var(--ease)}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta span{font-size:14px;color:var(--text-2)}
@media (max-width:767px){
  .float-cta{left:0;right:0;bottom:0;border-radius:0;padding:10px 18px calc(10px + env(safe-area-inset-bottom));
    justify-content:space-between;border-left:0;border-right:0;border-bottom:0}
}

/* 页脚 */
.site-footer{margin-top:84px;background:var(--bg-deep);border-top:1px solid var(--line);padding:44px 0 26px}
.footer-bar{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  padding:20px 24px;border-radius:var(--r-lg);
  background:rgba(255,255,255,.05);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--glass-line);box-shadow:var(--shadow)}
.footer-bar strong{display:block;font-size:16px;color:#fff;font-weight:600}
.footer-bar span{font-size:13px;color:var(--text-2)}
.subscribe{display:flex;gap:10px;align-items:center}
.subscribe input{height:40px;min-width:220px;padding:0 16px;border-radius:var(--r-pill);background:var(--bg-alt);
  border:1px solid var(--line);color:var(--text);font-size:14px}
.subscribe input::placeholder{color:var(--text-3)}
.subscribe input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 4px rgba(63,216,255,.12)}
.footer-cols{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;margin:44px 0 32px}
.footer-cols h4{font-size:14px;color:#fff;font-weight:600;margin-bottom:16px}
.footer-cols ul li{margin-bottom:10px}
.footer-cols ul a{font-size:13px;color:var(--text-2);transition:all 160ms var(--ease);display:inline-block}
.footer-cols ul a:hover{color:var(--cyan);transform:translateX(2px)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-cols p{font-size:13px;color:var(--text-3);line-height:1.85;max-width:340px}
.footer-contact li{font-size:13px;color:var(--text-3)}
.footer-contact span{color:var(--text-3)}
.footer-contact a{color:var(--text-2)}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:22px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3)}

/* 响应式导航与栅格 */
@media (max-width:1199px){
  .footer-cols{grid-template-columns:1.4fr 1fr 1fr;gap:28px}
}
@media (max-width:991px){
  .nav-main{position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:stretch;gap:2px;
    background:var(--bg-alt);border-bottom:1px solid var(--line);padding:10px 20px 16px;display:none}
  .nav-main.open{display:flex}
  .nav-main a{padding:11px 14px;border-radius:var(--r-sm);border-bottom:1px solid rgba(140,150,255,.08)}
  .nav-main a.active::after{display:none}
  .nav-toggle{display:inline-flex}
  .footer-cols{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  .article-wrap{padding-block:28px 56px}
  .article-head h1{font-size:26px}
  .share-group{margin-left:0;width:100%}
  .dual-nav{grid-template-columns:1fr}
  .dual-card.next{text-align:left}
  .form-grid{grid-template-columns:1fr}
  .subscribe{width:100%}
  .subscribe input{flex:1;min-width:0}
  .footer-cols{grid-template-columns:1fr;gap:26px}
  .footer-bar{padding:18px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .search-wrap.open .search-box{width:160px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --ink:#07061A;
  --ink-2:#0C0B22;
  --surface:#12102E;
  --line:rgba(140,150,255,.16);
  --line-soft:rgba(140,150,255,.10);
  --line-strong:rgba(140,150,255,.32);
  --text:#EAF0FF;
  --text-2:#A8B2D8;
  --text-3:#6E789E;
  --cyan:#3FD8FF;
  --cyan-deep:#1B9FD8;
  --violet:#7C5CFF;
  --gold:#FFC46B;
  --ok:#35E0A1;
  --warn:#FF6B8A;
  --grad:linear-gradient(135deg,#3FD8FF 0%,#7C5CFF 100%);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:22px;
  --r-pill:999px;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","MiSans","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:ui-monospace,"SF Mono","JetBrains Mono",var(--font-sans);
  --shadow:inset 0 1px 0 rgba(255,255,255,.06),0 18px 48px -28px rgba(0,0,0,.85),0 0 0 1px rgba(140,150,255,.14);
  --t:180ms cubic-bezier(.2,.7,.3,1);

  --bs-body-bg:#07061A;
  --bs-body-color:#EAF0FF;
  --bs-primary:#3FD8FF;
  --bs-border-color:rgba(140,150,255,.16);
  --bs-border-radius:16px;
  --bs-border-radius-sm:10px;
  --bs-border-radius-lg:22px;
  --bs-link-color:#EAF0FF;
  --bs-link-hover-color:#3FD8FF;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","MiSans","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --bs-gutter-x:32px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:132px;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--ink);color:var(--text);
  font-family:var(--font-sans);font-size:16px;line-height:1.8;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--text);text-decoration:none;transition:color var(--t),border-color var(--t),background var(--t),transform var(--t)}
a:hover{color:var(--cyan)}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:4px}

.container{
  width:100%;max-width:1200px;margin-inline:auto;
  padding-inline:24px;
}
@media (min-width:1400px){.container{max-width:1280px}}
@media (max-width:767px){.container{padding-inline:20px}}

.row{--bs-gutter-x:32px;--bs-gutter-y:24px}
@media (max-width:991px){.row{--bs-gutter-x:24px}}
@media (max-width:767px){.row{--bs-gutter-x:20px}}

/* ============ 按钮 ============ */
.btn{
  --bs-btn-focus-box-shadow:none;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;letter-spacing:.01em;line-height:1;
  padding:13px 24px;border-radius:var(--r-pill);border:1px solid transparent;
  cursor:pointer;transition:transform var(--t),box-shadow var(--t),background var(--t),border-color var(--t),color var(--t);
  white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-main{
  background:var(--grad);color:#fff;border-color:transparent;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.24),0 10px 30px -12px rgba(63,216,255,.75);
}
.btn-main:hover{
  color:#fff;transform:translateY(-1px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.3),0 16px 38px -12px rgba(99,168,255,.9);
  filter:brightness(1.06);
}
.btn-ghost{
  background:transparent;color:var(--text);border-color:var(--line-strong);
}
.btn-ghost:hover{color:var(--cyan);border-color:var(--cyan);background:rgba(255,255,255,.08);transform:translateY(-1px)}
.btn-text{
  background:none;border:0;padding:4px 0;color:var(--cyan);font-size:15px;font-weight:600;
}
.btn-text:hover{color:#fff;text-decoration:underline;text-underline-offset:5px}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(7,6,26,.92);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-soft);
}
.nav-top{height:64px;display:flex;align-items:center;transition:height var(--t),background var(--t)}
.nav-top-inner{display:flex;align-items:center;gap:28px;width:100%}
.site-header.is-scrolled .nav-top{height:56px}

.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{width:34px;height:34px;flex:0 0 auto}
.brand-text{font-size:19px;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.brand-text em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

.nav-main{display:flex;align-items:center;gap:4px;flex:1 1 auto;min-width:0}
.nav-main a{
  padding:8px 13px;border-radius:var(--r-pill);font-size:15px;color:var(--text-2);white-space:nowrap;
}
.nav-main a:hover{color:var(--text);background:rgba(255,255,255,.07)}
.nav-main a.active{color:#fff;background:rgba(63,216,255,.12);box-shadow:inset 0 0 0 1px rgba(63,216,255,.32)}

.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.search-wrap{position:relative;display:flex;align-items:center}
.search-toggle{
  width:38px;height:38px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);color:var(--text-2);cursor:pointer;transition:all var(--t);
}
.search-toggle:hover{color:var(--cyan);border-color:var(--cyan)}
.search-box{
  width:0;overflow:hidden;transition:width var(--t),opacity var(--t);opacity:0;
}
.search-wrap.open .search-box{width:220px;opacity:1;margin-left:8px}
.search-box input{
  width:100%;padding:9px 16px;border-radius:var(--r-pill);
  background:var(--ink-2);border:1px solid var(--line);color:var(--text);font-size:14px;outline:none;
}
.search-box input::placeholder{color:var(--text-3)}
.search-box input:focus{border-color:var(--cyan);box-shadow:0 0 0 4px rgba(63,216,255,.12)}

.nav-toggle{
  display:none;width:38px;height:38px;border-radius:var(--r-sm);
  background:transparent;border:1px solid var(--line);color:var(--text-2);cursor:pointer;
  align-items:center;justify-content:center;
}
.nav-toggle:hover{color:var(--cyan);border-color:var(--cyan)}

/* 频道行 */
.nav-channels{
  height:48px;background:#050414;border-bottom:1px solid var(--line-soft);
  display:flex;align-items:center;
}
.channels-inner{display:flex;align-items:center;width:100%;position:relative}
.channel-pills{
  display:flex;align-items:center;gap:10px;overflow-x:auto;scrollbar-width:none;width:100%;
  padding-block:6px;
}
.channel-pills::-webkit-scrollbar{display:none}
.pill{
  flex:0 0 auto;padding:6px 16px;border-radius:var(--r-pill);font-size:14px;color:var(--text-2);
  border:1px solid transparent;transition:all var(--t);white-space:nowrap;
}
.pill:hover{color:var(--text);background:rgba(255,255,255,.08)}
.pill.active{
  color:#fff;border-color:rgba(63,216,255,.55);
  background:linear-gradient(135deg,rgba(63,216,255,.16),rgba(124,92,255,.16));
  box-shadow:inset 0 0 14px rgba(63,216,255,.22);
}

/* ============ 通用区块 ============ */
.section{padding-block:clamp(56px,8vw,112px)}
.section-alt{background:var(--ink-2);border-block:1px solid var(--line-soft)}
.section-head{max-width:760px;margin-bottom:clamp(28px,4vw,48px)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan);margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--grad)}
.h2{font-size:clamp(24px,2.6vw,38px)}
.lead{color:var(--text-2);font-size:16px;line-height:1.85;margin-top:14px}

.breadcrumb-bar{
  height:44px;display:flex;align-items:center;border-bottom:1px solid var(--line-soft);
  background:#050414;font-size:13px;
}
.breadcrumb-list{display:flex;align-items:center;gap:8px;color:var(--text-3);flex-wrap:wrap}
.breadcrumb-list a{color:var(--text-2)}
.breadcrumb-list a:hover{color:var(--cyan)}
.breadcrumb-list .sep{color:var(--text-3);opacity:.6}
.breadcrumb-list .current{color:var(--text-3)}

/* ============ Hero 标题带 ============ */
.channel-hero{
  position:relative;overflow:hidden;isolation:isolate;
  padding-block:clamp(48px,7vw,84px);
  border-bottom:1px solid var(--line-soft);
  min-height:320px;display:flex;align-items:center;
}
.channel-hero::before{
  content:"";position:absolute;inset:0;z-index:-2;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  opacity:.3;
}
.channel-hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:
    radial-gradient(700px 320px at 12% 12%,rgba(63,216,255,.18),transparent 70%),
    radial-gradient(620px 320px at 88% 82%,rgba(124,92,255,.18),transparent 72%),
    linear-gradient(180deg,rgba(7,6,26,.62) 0%,rgba(7,6,26,.97) 100%);
}
.hero-stars{
  position:absolute;inset:0;z-index:-1;pointer-events:none;opacity:.7;
  background-image:
    radial-gradient(1.4px 1.4px at 18% 24%,rgba(255,255,255,.75),transparent),
    radial-gradient(1.2px 1.2px at 62% 16%,rgba(255,255,255,.5),transparent),
    radial-gradient(1.6px 1.6px at 82% 62%,rgba(63,216,255,.7),transparent),
    radial-gradient(1.2px 1.2px at 34% 78%,rgba(255,255,255,.42),transparent),
    radial-gradient(1.3px 1.3px at 72% 88%,rgba(255,196,107,.6),transparent);
}
.hero-grid{display:grid;grid-template-columns:1fr auto;gap:40px;align-items:end;width:100%}
@media (max-width:991px){.hero-grid{grid-template-columns:1fr;gap:24px}}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:5px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.06);border:1px solid var(--line);color:var(--cyan);
  font-size:13px;letter-spacing:.06em;margin-bottom:18px;
}
.hero-badge i{width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan);display:block}
.channel-hero h1{
  font-size:clamp(30px,4.4vw,50px);line-height:1.15;letter-spacing:-.02em;
  max-width:16em;
}
.channel-hero h1 span{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-desc{color:var(--text-2);font-size:16px;line-height:1.85;max-width:640px;margin-top:16px}
.hero-stat-row{
  display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end;
}
.stat-chip{
  min-width:132px;padding:14px 18px;border-radius:var(--r-lg);
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.10);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.stat-chip b{
  display:block;font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:26px;font-weight:700;line-height:1.2;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-chip span{display:block;font-size:13px;color:var(--text-2);margin-top:2px}
@media (max-width:991px){.hero-stat-row{justify-content:flex-start}}
@media (max-width:575px){.stat-chip{flex:1 1 44%;min-width:0;padding:12px 14px}.stat-chip b{font-size:22px}}

/* ============ 频道导览主体 ============ */
.channel-body{padding-block:clamp(48px,6vw,88px)}
.side-anchor{position:sticky;top:136px}
@media (max-width:991px){.side-anchor{position:static;margin-bottom:28px}}
.side-anchor h2{font-size:20px;margin-bottom:8px}
.side-anchor .side-note{font-size:14px;color:var(--text-3);line-height:1.7;margin-bottom:20px}
.anchor-list{display:flex;flex-direction:column;gap:2px;border-left:1px solid var(--line);padding-left:0}
.anchor-list a{
  position:relative;display:block;padding:10px 14px 10px 18px;font-size:15px;color:var(--text-2);
  border-left:3px solid transparent;margin-left:-2px;border-radius:0 var(--r-sm) var(--r-sm) 0;
}
.anchor-list a:hover{color:var(--text);background:rgba(255,255,255,.06)}
.anchor-list a.active{
  color:#fff;border-left-color:var(--cyan);background:rgba(63,216,255,.09);
}
.anchor-list a small{display:block;font-size:12.5px;color:var(--text-3);font-weight:400;margin-top:1px}

.entry-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
@media (max-width:1199px){.entry-grid{grid-template-columns:1fr}}
.entry-card{
  display:flex;gap:16px;padding:16px;border-radius:var(--r-md);
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);
  position:relative;overflow:hidden;transition:transform var(--t),border-color var(--t);
}
.entry-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;opacity:0;
  background:linear-gradient(90deg,transparent,rgba(63,216,255,.8),transparent);transition:opacity var(--t);
}
.entry-card:hover{transform:translateY(-4px);border-color:rgba(63,216,255,.45)}
.entry-card:hover::before{opacity:1}
.entry-thumb{
  flex:0 0 128px;aspect-ratio:4/3;border-radius:var(--r-sm);overflow:hidden;
  background:var(--ink-2);border:1px solid var(--line-soft);
}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 320ms cubic-bezier(.2,.7,.3,1)}
.entry-card:hover .entry-thumb img{transform:scale(1.05)}
.entry-body{flex:1 1 auto;min-width:0;display:flex;flex-direction:column;gap:6px}
.entry-body h3{font-size:17px}
.entry-body p{font-size:14px;color:var(--text-2);line-height:1.72}
.entry-more{
  margin-top:auto;display:inline-flex;align-items:center;gap:6px;
  font-size:13.5px;color:var(--cyan);font-weight:600;
}
.entry-more svg{transition:transform var(--t)}
.entry-card:hover .entry-more svg{transform:translateX(4px)}
@media (max-width:575px){
  .entry-card{flex-direction:column}
  .entry-thumb{flex:none;width:100%;aspect-ratio:16/9}
}

/* ============ 联赛覆盖带 ============ */
.league-strip{position:relative;border-block:1px solid var(--line-soft)}
.league-row{
  display:flex;gap:12px;overflow-x:auto;padding-bottom:6px;scrollbar-width:none;
}
.league-row::-webkit-scrollbar{display:none}
.league-item{
  flex:0 0 auto;min-width:172px;padding:16px 20px;border-radius:var(--r-md);
  background:var(--surface);border:1px solid var(--line);
  display:flex;flex-direction:column;gap:4px;transition:all var(--t);
}
.league-item:hover{border-color:rgba(63,216,255,.45);transform:translateY(-3px)}
.league-item b{font-size:16px;font-weight:600}
.league-item span{font-size:13px;color:var(--text-3);font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ============ 观赛流程时间轴 ============ */
.flow-wrap{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;position:relative}
@media (max-width:991px){.flow-wrap{grid-template-columns:1fr}}
.flow-item{
  position:relative;padding:26px 24px;border-radius:var(--r-md);
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);
}
.flow-item .flow-idx{
  font-family:var(--font-num);font-size:13px;color:var(--text-3);letter-spacing:.16em;display:block;margin-bottom:12px;
}
.flow-item h3{font-size:18px;margin-bottom:10px}
.flow-item p{font-size:14.5px;color:var(--text-2);line-height:1.8}
.flow-item .flow-dot{
  position:absolute;top:-7px;left:24px;width:12px;height:12px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 14px rgba(63,216,255,.85);
}
.flow-item:nth-child(2) .flow-dot{background:var(--violet);box-shadow:0 0 14px rgba(124,92,255,.85)}
.flow-item:nth-child(3) .flow-dot{background:var(--gold);box-shadow:0 0 14px rgba(255,196,107,.7)}

/* ============ 能力编号列表 ============ */
.cap-layout{display:grid;grid-template-columns:5fr 7fr;gap:48px}
@media (max-width:991px){.cap-layout{grid-template-columns:1fr;gap:28px}}
.cap-intro{position:sticky;top:136px;align-self:start}
@media (max-width:991px){.cap-intro{position:static}}
.cap-list{border-top:1px solid var(--line)}
.cap-item{
  position:relative;display:flex;gap:22px;padding:26px 20px 26px 18px;border-bottom:1px solid var(--line);
  transition:background var(--t);
}
.cap-item::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;border-radius:2px;
  background:var(--grad);opacity:0;transition:opacity var(--t);
}
.cap-item:hover{background:rgba(255,255,255,.04)}
.cap-item:hover::before{opacity:1}
.cap-num{
  flex:0 0 auto;font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:28px;font-weight:700;line-height:1;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.cap-text h3{font-size:17px;margin-bottom:6px}
.cap-text p{font-size:14.5px;color:var(--text-2);line-height:1.78}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:48px}
@media (max-width:991px){.faq-layout{grid-template-columns:1fr;gap:28px}}
.faq-side{position:sticky;top:136px;align-self:start}
@media (max-width:991px){.faq-side{position:static}}
.faq-side .h2{margin-bottom:14px}
.faq-side p{font-size:14.5px;color:var(--text-2);line-height:1.8;margin-bottom:20px}

.accordion-item{
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.10);
  border-radius:var(--r-md)!important;margin-bottom:12px;overflow:hidden;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.accordion-button{
  background:transparent;color:var(--text);font-size:16px;font-weight:600;line-height:1.5;
  padding:18px 52px 18px 22px;border:0;box-shadow:none!important;position:relative;
}
.accordion-button:not(.collapsed){color:#fff;background:rgba(63,216,255,.08)}
.accordion-button::after{
  display:none;
}
.accordion-button .faq-icon{
  position:absolute;right:20px;top:50%;width:16px;height:16px;transform:translateY(-50%);
  transition:transform var(--t);
}
.accordion-button .faq-icon::before,
.accordion-button .faq-icon::after{
  content:"";position:absolute;background:var(--cyan);border-radius:2px;
  left:50%;top:50%;transform:translate(-50%,-50%);
}
.accordion-button .faq-icon::before{width:14px;height:2px}
.accordion-button .faq-icon::after{width:2px;height:14px;transition:transform var(--t)}
.accordion-button:not(.collapsed) .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg) scaleY(0)}
.accordion-button:focus{outline:2px solid var(--cyan);outline-offset:-2px}
.accordion-body{
  padding:4px 22px 22px;color:var(--text-2);font-size:14.5px;line-height:1.85;
  border-top:1px solid rgba(255,255,255,.06);
}
.accordion-item:has(.accordion-button:not(.collapsed)){
  border-color:rgba(63,216,255,.4);
  box-shadow:inset 3px 0 0 var(--cyan),inset 0 1px 0 rgba(255,255,255,.06);
}

/* ============ 相关分类 ============ */
.related-cats{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.related-cats a{
  padding:9px 20px;border-radius:var(--r-pill);border:1px solid var(--line);
  background:var(--surface);color:var(--text-2);font-size:14.5px;transition:all var(--t);
}
.related-cats a:hover{color:#fff;border-color:rgba(63,216,255,.5);transform:translateY(-2px)}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;isolation:isolate;
  border-radius:var(--r-lg);border:1px solid var(--line);
  background:var(--surface);box-shadow:var(--shadow);
  padding:clamp(30px,4vw,52px);
  display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:
    radial-gradient(520px 260px at 8% 10%,rgba(63,216,255,.16),transparent 70%),
    radial-gradient(520px 260px at 92% 90%,rgba(124,92,255,.16),transparent 72%);
}
.cta-band h2{font-size:clamp(22px,2.4vw,32px);margin-bottom:10px}
.cta-band p{color:var(--text-2);font-size:15px;line-height:1.8;max-width:620px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
@media (max-width:767px){.cta-band{grid-template-columns:1fr}}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:24px;bottom:28px;z-index:1040;
  display:inline-flex;align-items:center;gap:10px;padding:13px 22px;border-radius:var(--r-pill);
  background:var(--grad);color:#fff;font-size:15px;font-weight:600;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.24),0 18px 40px -16px rgba(63,216,255,.85);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity var(--t),transform var(--t),visibility var(--t);
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta:hover{color:#fff;filter:brightness(1.07)}
@media (max-width:767px){
  .float-cta{
    left:0;right:0;bottom:0;border-radius:0;justify-content:space-between;
    padding:16px 20px calc(16px + env(safe-area-inset-bottom));
    transform:translateY(100%);
  }
  .float-cta.show{transform:translateY(0)}
}

/* ============ 页脚 ============ */
.site-footer{background:#050414;border-top:1px solid var(--line-soft);margin-top:clamp(48px,6vw,88px)}
.footer-bar{
  display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between;
  padding:22px 26px;margin-top:-1px;border-radius:0 0 var(--r-lg) var(--r-lg);
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.10);border-top:0;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.footer-bar strong{display:block;font-size:16px;font-weight:600}
.footer-bar span{display:block;font-size:13.5px;color:var(--text-3);margin-top:2px}
.subscribe{display:flex;gap:10px;flex-wrap:wrap}
.subscribe input{
  padding:10px 18px;border-radius:var(--r-pill);min-width:230px;
  background:var(--ink-2);border:1px solid var(--line);color:var(--text);font-size:14px;outline:none;
}
.subscribe input::placeholder{color:var(--text-3)}
.subscribe input:focus{border-color:var(--cyan);box-shadow:0 0 0 4px rgba(63,216,255,.12)}

.footer-cols{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;
  padding-block:clamp(36px,5vw,56px);
}
@media (max-width:991px){.footer-cols{grid-template-columns:1fr 1fr}}
@media (max-width:575px){.footer-cols{grid-template-columns:1fr;gap:28px}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-cols h4{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px;letter-spacing:.04em}
.footer-cols p{font-size:13.5px;color:var(--text-3);line-height:1.8;max-width:340px}
.footer-cols ul{display:flex;flex-direction:column;gap:10px}
.footer-cols li a{font-size:13.5px;color:var(--text-3);transition:all var(--t)}
.footer-cols li a:hover{color:var(--cyan);transform:translateX(2px);display:inline-block}
.footer-contact li{font-size:13.5px;color:var(--text-3);display:flex;gap:6px;flex-wrap:wrap}
.footer-contact li a{color:var(--text-2)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  padding-block:22px;border-top:1px solid var(--line-soft);
  font-size:13px;color:var(--text-3);
}

/* ============ 动效降级 ============ */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important;animation:none!important}
}

/* ============ 移动端导航 ============ */
@media (max-width:991px){
  .nav-main{display:none}
  .nav-toggle{display:inline-flex}
  .nav-main.open{
    display:flex;flex-direction:column;align-items:stretch;gap:4px;
    position:absolute;top:64px;left:0;right:0;
    background:rgba(5,4,20,.98);border-bottom:1px solid var(--line);
    padding:14px 24px 20px;backdrop-filter:blur(14px);
  }
  .site-header.is-scrolled .nav-main.open{top:56px}
  .nav-main.open a{padding:11px 14px;border-radius:var(--r-sm)}
  .nav-actions .btn-main{display:none}
  .search-box{display:none}
  .search-wrap.open .search-box{display:none}
}
@media (max-width:575px){
  .channel-hero{min-height:280px}
  .brand-text{font-size:17px}
}

/* roulang page: category2 */
:root{
  --bg:#07061A;
  --bg-alt:#0C0B22;
  --surface:#12102E;
  --line:rgba(140,150,255,.16);
  --line-strong:rgba(140,150,255,.32);
  --cyan:#3FD8FF;
  --cyan-deep:#1B9FD8;
  --violet:#7C5CFF;
  --gold:#FFC46B;
  --ok:#35E0A1;
  --warn:#FF6B8A;
  --text:#EAF0FF;
  --text-2:#A8B2D8;
  --text-3:#6E789E;
  --grad:linear-gradient(135deg,#3FD8FF 0%,#7C5CFF 100%);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:22px;
  --r-pill:999px;
  --shadow:inset 0 1px 0 rgba(255,255,255,.06),0 18px 48px -28px rgba(0,0,0,.85),0 0 0 1px rgba(140,150,255,.14);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","MiSans","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:ui-monospace,"SF Mono","JetBrains Mono",var(--font-sans);
  --ease:180ms cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:132px}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:var(--ease)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;letter-spacing:-.02em;line-height:1.25}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:4px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media(min-width:1400px){.container{max-width:1280px}}
@media(max-width:767px){.container{padding:0 20px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(7,6,26,.9);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-top-inner{
  display:flex;align-items:center;gap:24px;
  height:64px;
  transition:height var(--ease);
}
.site-header.compact .nav-top-inner{height:56px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:32px;height:32px;flex-shrink:0}
.brand-text{font-size:19px;font-weight:700;letter-spacing:-.02em;color:var(--text)}
.brand-text em{
  font-style:normal;
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}
.nav-main{display:flex;align-items:center;gap:4px;flex:1}
.nav-main a{
  padding:8px 12px;border-radius:var(--r-pill);
  font-size:15px;color:var(--text-2);white-space:nowrap;
}
.nav-main a:hover{color:var(--text);background:rgba(255,255,255,.07)}
.nav-main a.active{color:var(--cyan);background:rgba(63,216,255,.08)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-wrap{position:relative;display:flex;align-items:center}
.search-toggle{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--r-pill);border:1px solid var(--line);background:transparent;
  color:var(--text-2);cursor:pointer;transition:var(--ease);
}
.search-toggle:hover{color:var(--cyan);border-color:var(--line-strong)}
.search-box{width:0;overflow:hidden;transition:width var(--ease)}
.search-wrap.open .search-box{width:210px;margin-left:8px}
.search-box input{
  width:100%;padding:9px 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:var(--bg-alt);color:var(--text);
  font-size:14px;outline:none;transition:var(--ease);
}
.search-box input::placeholder{color:var(--text-3)}
.search-box input:focus{border-color:var(--cyan);box-shadow:0 0 0 4px rgba(63,216,255,.12)}
.nav-toggle{
  display:none;width:38px;height:38px;align-items:center;justify-content:center;
  border-radius:var(--r-pill);border:1px solid var(--line);background:transparent;
  color:var(--text-2);cursor:pointer;
}
.nav-channels{border-top:1px solid rgba(140,150,255,.10);background:rgba(12,11,34,.9)}
.channels-inner{
  display:flex;align-items:center;gap:8px;height:48px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.channels-inner::-webkit-scrollbar{display:none}
.channels-inner::after{content:"";flex:0 0 20px}
.pill{
  display:inline-flex;align-items:center;gap:6px;flex-shrink:0;
  padding:7px 16px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:14px;color:var(--text-2);white-space:nowrap;transition:var(--ease);
}
.pill:hover{background:rgba(255,255,255,.08);color:var(--text)}
.pill.active{
  color:var(--cyan);border-color:rgba(63,216,255,.55);
  background:rgba(63,216,255,.08);
  box-shadow:inset 0 0 12px rgba(63,216,255,.18);
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-pill);
  border:1px solid transparent;font-size:15px;font-weight:600;letter-spacing:.01em;
  cursor:pointer;transition:var(--ease);white-space:nowrap;
}
.btn-main{
  background:var(--grad);color:#050418;
  box-shadow:0 12px 30px -14px rgba(63,216,255,.8);
}
.btn-main:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 16px 36px -14px rgba(63,216,255,.9)}
.btn-main:active{transform:translateY(1px)}
.btn-ghost{
  background:transparent;border-color:rgba(140,150,255,.32);color:var(--text);
}
.btn-ghost:hover{border-color:var(--cyan);background:rgba(255,255,255,.08)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--cyan);font-size:15px;font-weight:600;background:none;border:none;padding:0;cursor:pointer;
}
.btn-link:hover{text-decoration:underline;text-underline-offset:5px}
.btn-link svg{transition:transform var(--ease)}
.btn-link:hover svg{transform:translateX(4px)}

/* ---------- breadcrumb ---------- */
.breadcrumb-bar{
  background:var(--bg);
  border-bottom:1px solid rgba(140,150,255,.10);
}
.breadcrumb-inner{
  display:flex;align-items:center;gap:8px;height:44px;
  font-size:13px;color:var(--text-3);
}
.breadcrumb-inner a{color:var(--text-2)}
.breadcrumb-inner a:hover{color:var(--cyan)}
.breadcrumb-inner .sep{color:var(--text-3)}
.breadcrumb-inner .current{color:var(--text-3)}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:var(--bg-alt);
  padding:clamp(56px,7vw,88px) 0 clamp(48px,6vw,72px);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(100deg,rgba(7,6,26,.96) 0%,rgba(7,6,26,.88) 42%,rgba(7,6,26,.6) 100%),
    url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center;
}
.nebula{position:absolute;border-radius:50%;filter:blur(70px);opacity:.16;pointer-events:none}
.nebula.n1{width:520px;height:520px;background:var(--cyan);top:-200px;left:-140px}
.nebula.n2{width:460px;height:460px;background:var(--violet);bottom:-220px;right:-120px}
.starfield{
  position:absolute;inset:0;pointer-events:none;opacity:.75;
  background-image:
    radial-gradient(1.6px 1.6px at 12% 24%,rgba(255,255,255,.8),transparent 100%),
    radial-gradient(1.4px 1.4px at 32% 68%,rgba(255,255,255,.6),transparent 100%),
    radial-gradient(1.8px 1.8px at 58% 18%,rgba(255,196,107,.7),transparent 100%),
    radial-gradient(1.3px 1.3px at 76% 52%,rgba(255,255,255,.65),transparent 100%),
    radial-gradient(1.5px 1.5px at 90% 30%,rgba(63,216,255,.7),transparent 100%),
    radial-gradient(1.2px 1.2px at 22% 88%,rgba(255,255,255,.5),transparent 100%),
    radial-gradient(1.6px 1.6px at 68% 86%,rgba(124,92,255,.75),transparent 100%);
}
.hero-grid{
  position:relative;display:grid;grid-template-columns:7fr 5fr;
  gap:32px;align-items:center;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.10);
  font-size:13px;color:var(--text-2);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  margin-bottom:20px;
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 8px var(--ok)}
.hero h1{
  font-size:clamp(30px,4.2vw,52px);font-weight:700;line-height:1.15;
  letter-spacing:-.02em;margin-bottom:16px;
}
.hero h1 .grad{
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}
.hero-sub{font-size:17px;color:var(--text-2);max-width:44ch;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.glass-stat{
  display:grid;grid-template-columns:repeat(3,1fr);gap:8px;
  padding:14px 18px;border-radius:var(--r-lg);
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.10);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.glass-stat .item{text-align:left}
.glass-stat .v{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:22px;font-weight:700;color:var(--cyan);
  text-shadow:0 0 18px rgba(63,216,255,.55);line-height:1.25;
}
.glass-stat .k{font-size:13px;color:var(--text-2);line-height:1.5}
.hero-visual{position:relative}
.hero-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:20px;box-shadow:var(--shadow);
}
.hero-panel .panel-head{
  display:flex;align-items:center;justify-content:space-between;
  padding-bottom:12px;margin-bottom:14px;border-bottom:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.hero-panel .panel-head strong{color:var(--text-2);font-weight:600;font-size:14px}
.rail-row{display:flex;align-items:center;gap:12px;padding:9px 0;border-bottom:1px dashed rgba(140,150,255,.14)}
.rail-row:last-child{border-bottom:none}
.rail-row .t{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:13px;color:var(--cyan);width:56px;flex-shrink:0;
}
.rail-row .d{font-size:14px;color:var(--text-2);line-height:1.6}
.arc-line{
  position:absolute;left:-40px;bottom:-56px;width:300px;height:180px;
  border:1px solid rgba(63,216,255,.28);border-radius:50%;
  border-right-color:transparent;border-bottom-color:transparent;
  transform:rotate(-18deg);pointer-events:none;
}

/* ---------- section base ---------- */
.section{padding:clamp(56px,8vw,112px) 0;position:relative}
.section-alt{background:var(--bg-alt)}
.sec-head{max-width:780px;margin-bottom:44px}
.sec-eyebrow{
  display:inline-block;font-size:13px;color:var(--cyan);
  letter-spacing:.12em;text-transform:uppercase;margin-bottom:12px;
}
.sec-head h2{font-size:clamp(24px,2.6vw,38px);font-weight:700;margin-bottom:14px}
.sec-head p{color:var(--text-2);margin:0}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}

/* ---------- timeline ---------- */
.timeline{position:relative;margin-top:8px}
.timeline::before{
  content:"";position:absolute;top:0;bottom:0;left:50%;width:1px;transform:translateX(-50%);
  background:linear-gradient(180deg,rgba(63,216,255,0) 0%,rgba(63,216,255,.9) 10%,rgba(124,92,255,.9) 90%,rgba(124,92,255,0) 100%);
}
.tl-item{
  display:grid;grid-template-columns:1fr 84px 1fr;
  align-items:flex-start;margin-bottom:34px;
  opacity:0;transform:translateY(24px);
  transition:opacity 520ms cubic-bezier(.2,.7,.3,1),transform 520ms cubic-bezier(.2,.7,.3,1);
}
.tl-item.in{opacity:1;transform:none}
.tl-item .tl-card{grid-column:1;grid-row:1}
.tl-item .tl-dot{grid-column:2;grid-row:1}
.tl-item.rev .tl-card{grid-column:3}
.tl-item.rev .tl-dot{grid-column:2}
.tl-dot{
  justify-self:center;width:52px;height:52px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:15px;font-weight:700;color:var(--cyan);
  background:var(--surface);border:1px solid rgba(63,216,255,.45);
  box-shadow:0 0 0 6px rgba(7,6,26,.9),0 0 22px -6px rgba(63,216,255,.45);
}
.tl-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px 24px;box-shadow:var(--shadow);
  transition:var(--ease);position:relative;overflow:hidden;
}
.tl-card:hover{transform:translateY(-4px);border-color:rgba(63,216,255,.45)}
.tl-card::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;
  background:var(--grad);border-radius:0 3px 3px 0;opacity:0;transition:var(--ease);
}
.tl-card:hover::before{opacity:1}
.tl-time{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:13px;color:var(--gold);letter-spacing:.04em;margin-bottom:8px;
}
.tl-card h3{font-size:19px;font-weight:600;margin-bottom:10px}
.tl-card p{font-size:14.5px;color:var(--text-2);line-height:1.75;margin:0}
.tl-figure{margin-top:14px;border-radius:var(--r-sm);overflow:hidden;aspect-ratio:16/9;background:var(--bg-alt);border:1px solid var(--line)}
.tl-figure img{width:100%;height:100%;object-fit:cover}

/* ---------- bento ---------- */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.b-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px;box-shadow:var(--shadow);position:relative;overflow:hidden;
  transition:var(--ease);display:flex;flex-direction:column;
}
.b-card:hover{transform:translateY(-4px);border-color:rgba(63,216,255,.42)}
.b-card::after{
  content:"";position:absolute;left:26px;right:26px;top:0;height:1px;
  background:var(--grad);opacity:0;transition:var(--ease);
}
.b-card:hover::after{opacity:1}
.b-a{grid-column:1 / 8}
.b-b{grid-column:8 / 13}
.b-c{grid-column:1 / 6}
.b-d{grid-column:6 / 13}
.b-card h3{font-size:17px;font-weight:600;margin-bottom:10px}
.b-card p{font-size:14.5px;color:var(--text-2);line-height:1.78}
.b-card .b-tag{
  display:inline-flex;align-self:flex-start;align-items:center;
  padding:4px 12px;border-radius:var(--r-pill);font-size:13px;
  background:rgba(124,92,255,.14);border:1px solid rgba(124,92,255,.4);
  color:#C3B4FF;margin-bottom:14px;
}
.b-card .b-tag.gold{background:rgba(255,196,107,.12);border-color:rgba(255,196,107,.42);color:var(--gold)}
.b-card .b-tag.cyan{background:rgba(63,216,255,.1);border-color:rgba(63,216,255,.42);color:var(--cyan)}
.b-figure{margin-top:18px;border-radius:var(--r-sm);overflow:hidden;aspect-ratio:16/9;border:1px solid var(--line)}
.b-figure img{width:100%;height:100%;object-fit:cover}
.b-list{margin-top:14px;display:grid;gap:10px}
.b-list li{display:flex;gap:10px;font-size:14.5px;color:var(--text-2);line-height:1.7}
.b-list li svg{flex-shrink:0;margin-top:6px;color:var(--cyan)}

/* ---------- rhythm rail ---------- */
.rail-scroll{
  display:flex;gap:20px;overflow-x:auto;padding-bottom:12px;
  scrollbar-width:thin;scrollbar-color:rgba(140,150,255,.3) transparent;
}
.rail-scroll::-webkit-scrollbar{height:6px}
.rail-scroll::-webkit-scrollbar-thumb{background:rgba(140,150,255,.3);border-radius:3px}
.rail-card{
  flex:0 0 320px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);padding:24px;box-shadow:var(--shadow);transition:var(--ease);
}
.rail-card:hover{transform:translateY(-4px);border-color:rgba(63,216,255,.45)}
.rail-card .kpi{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:30px;font-weight:700;line-height:1.2;
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
  margin-bottom:6px;
}
.rail-card h3{font-size:17px;font-weight:600;margin-bottom:10px}
.rail-card p{font-size:14.5px;color:var(--text-2);line-height:1.75;margin-bottom:14px}
.rail-card .src{font-size:13px;color:var(--text-3)}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:32px;align-items:start}
.faq-aside{position:sticky;top:132px}
.faq-aside h2{font-size:clamp(24px,2.4vw,34px);margin-bottom:14px}
.faq-aside p{color:var(--text-2);font-size:15px;margin-bottom:22px}
.faq-aside .contact-line{
  display:flex;flex-direction:column;gap:10px;
  padding:18px;border-radius:var(--r-md);
  background:var(--surface);border:1px solid var(--line);
}
.faq-aside .contact-line span{font-size:13px;color:var(--text-3)}
.faq-aside .contact-line a{font-size:14.5px;color:var(--cyan)}
.faq-aside .contact-line a:hover{text-decoration:underline;text-underline-offset:4px}
.accordion{display:grid;gap:12px}
.accordion-item{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.10) !important;
  border-radius:var(--r-md) !important;
  overflow:hidden;
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  transition:var(--ease);position:relative;
}
.accordion-item::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  background:var(--grad);border-radius:0 3px 3px 0;opacity:0;transition:var(--ease);
}
.accordion-item:has(.accordion-button:not(.collapsed))::before{opacity:1}
.accordion-item:has(.accordion-button:not(.collapsed)){border-color:rgba(63,216,255,.42) !important;background:rgba(255,255,255,.07)}
.accordion-button{
  background:transparent !important;color:var(--text) !important;
  font-size:16px;font-weight:600;padding:18px 56px 18px 24px;
  box-shadow:none !important;border:none;
}
.accordion-button::after{display:none}
.accordion-button:not(.collapsed){color:var(--cyan) !important}
.acc-icon{
  position:absolute;right:20px;top:50%;transform:translateY(-50%);
  width:22px;height:22px;pointer-events:none;color:var(--text-2);
}
.acc-icon::before,.acc-icon::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
  transition:transform var(--ease),opacity var(--ease);
}
.acc-icon::before{left:4px;right:4px;top:10px;height:1.6px}
.acc-icon::after{top:4px;bottom:4px;left:10px;width:1.6px}
.accordion-item:has(.accordion-button:not(.collapsed)) .acc-icon{color:var(--cyan)}
.accordion-item:has(.accordion-button:not(.collapsed)) .acc-icon::after{transform:rotate(90deg);opacity:0}
.accordion-body{padding:0 24px 20px;font-size:15px;color:var(--text-2);line-height:1.85}
.accordion-body p{margin-bottom:10px}
.accordion-body p:last-child{margin-bottom:0}

/* ---------- CTA ---------- */
.cta-wrap{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  padding:clamp(32px,4vw,56px);
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.10);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-wrap::before{
  content:"";position:absolute;inset:0;opacity:.22;pointer-events:none;
  background-image:url(/assets/images/backpic/back-3.webp);
  background-size:cover;background-position:center 30%;
  mask-image:linear-gradient(90deg,rgba(0,0,0,.9),transparent 70%);
  -webkit-mask-image:linear-gradient(90deg,rgba(0,0,0,.9),transparent 70%);
}
.cta-copy{position:relative;max-width:56ch}
.cta-copy h2{font-size:clamp(22px,2.4vw,32px);margin-bottom:12px}
.cta-copy p{color:var(--text-2);font-size:15px;margin:0}
.cta-actions{position:relative;display:flex;gap:14px;flex-wrap:wrap}

/* ---------- related ---------- */
.related{padding-top:0}
.related h2{font-size:20px;margin-bottom:18px}
.pill-group{display:flex;flex-wrap:wrap;gap:12px}
.pill-group .pill{
  border-color:rgba(140,150,255,.28);padding:9px 20px;font-size:14.5px;color:var(--text);
  background:var(--surface);
}
.pill-group .pill:hover{border-color:var(--cyan);color:var(--cyan);background:rgba(63,216,255,.07)}

/* ---------- footer ---------- */
.site-footer{
  background:var(--bg-alt);border-top:1px solid var(--line);
  margin-top:clamp(56px,8vw,96px);position:relative;overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;inset:0;opacity:.5;pointer-events:none;
  background-image:
    radial-gradient(1.4px 1.4px at 18% 30%,rgba(255,255,255,.5),transparent 100%),
    radial-gradient(1.4px 1.4px at 52% 68%,rgba(63,216,255,.5),transparent 100%),
    radial-gradient(1.4px 1.4px at 82% 26%,rgba(124,92,255,.6),transparent 100%);
}
.site-footer .container{position:relative}
.footer-bar{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:24px 26px;margin-top:clamp(40px,5vw,64px);
  border-radius:var(--r-lg);
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.10);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.footer-bar strong{display:block;font-size:17px;margin-bottom:6px}
.footer-bar span{font-size:14px;color:var(--text-2)}
.subscribe{display:flex;gap:10px;flex-wrap:wrap}
.subscribe input{
  min-width:230px;padding:11px 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:var(--bg);color:var(--text);font-size:14px;outline:none;
  transition:var(--ease);
}
.subscribe input::placeholder{color:var(--text-3)}
.subscribe input:focus{border-color:var(--cyan);box-shadow:0 0 0 4px rgba(63,216,255,.12)}
.footer-cols{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:32px;padding:48px 0 36px;
}
.footer-cols h4{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px;letter-spacing:.02em}
.footer-cols p{font-size:13.5px;color:var(--text-3);line-height:1.85;margin:14px 0 0}
.footer-cols ul{display:grid;gap:10px}
.footer-cols li{font-size:13.5px;color:var(--text-3)}
.footer-cols a{font-size:13.5px;color:var(--text-2)}
.footer-cols a:hover{color:var(--cyan);transform:translateX(2px);display:inline-block}
.footer-brand{display:flex;align-items:center;gap:10px}
.footer-brand .brand-text{font-size:17px}
.footer-contact li{display:flex;gap:6px;flex-wrap:wrap}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 28px;border-top:1px solid rgba(140,150,255,.12);
  font-size:13px;color:var(--text-3);
}

/* ---------- floating cta ---------- */
.float-cta{
  position:fixed;right:26px;bottom:26px;z-index:1040;
  display:inline-flex;align-items:center;gap:10px;
  padding:13px 22px;border-radius:var(--r-pill);
  background:var(--grad);color:#050418;font-size:15px;font-weight:600;
  box-shadow:0 18px 40px -16px rgba(63,216,255,.85);
  opacity:0;transform:translateY(16px);pointer-events:none;
  transition:var(--ease);
}
.float-cta.show{opacity:1;transform:none;pointer-events:auto}
.float-cta:hover{filter:brightness(1.08)}
.float-bar{display:none}

/* ---------- responsive ---------- */
@media(max-width:1199px){
  .faq-grid{grid-template-columns:1fr;gap:28px}
  .faq-aside{position:static}
}
@media(max-width:991px){
  .nav-main{display:none}
  .nav-toggle{display:inline-flex}
  .nav-main.open{
    display:flex;flex-direction:column;align-items:stretch;gap:2px;
    position:absolute;left:0;right:0;top:100%;
    background:rgba(12,11,34,.98);border-bottom:1px solid var(--line);
    padding:12px 20px 18px;backdrop-filter:blur(14px);
  }
  .nav-main.open a{padding:11px 12px;border-radius:var(--r-sm)}
  .hero-grid{grid-template-columns:1fr;gap:28px}
  .hero-sub{max-width:none}
  .b-a,.b-b,.b-c,.b-d{grid-column:1 / -1}
  .footer-cols{grid-template-columns:1fr 1fr;gap:28px}
  .arc-line{display:none}
}
@media(max-width:767px){
  .search-wrap.open .search-box{width:150px}
  .brand-text{font-size:17px}
  .glass-stat{grid-template-columns:1fr;gap:14px;padding:16px}
  .glass-stat .item{display:flex;align-items:baseline;gap:10px}
  .timeline::before{left:26px;transform:none}
  .tl-item{grid-template-columns:52px 1fr;gap:14px}
  .tl-item .tl-card,
  .tl-item.rev .tl-card{grid-column:2}
  .tl-item .tl-dot,
  .tl-item.rev .tl-dot{grid-column:1;justify-self:start;width:44px;height:44px;font-size:13px}
  .tl-item{margin-bottom:22px}
  .tl-card{padding:18px}
  .rail-card{flex:0 0 82%}
  .footer-cols{grid-template-columns:1fr;gap:26px;padding:36px 0 28px}
  .footer-bar{padding:20px}
  .subscribe input{min-width:0;flex:1 1 100%}
  .subscribe .btn{width:100%}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .float-cta{display:none}
  .float-bar{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    position:fixed;left:0;right:0;bottom:0;z-index:1040;
    padding:10px 16px calc(10px + env(safe-area-inset-bottom));
    background:rgba(7,6,26,.94);border-top:1px solid var(--line);
    -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
    transform:translateY(110%);transition:transform var(--ease);
  }
  .float-bar.show{transform:none}
  .float-bar span{font-size:13.5px;color:var(--text-2)}
}
@media(max-width:520px){
  .hero h1{font-size:29px}
  .brand-text{font-size:16px}
  .nav-actions .btn{display:none}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
  .tl-item{opacity:1;transform:none}
}

/* roulang page: category3 */
:root{
  --bg:#07061A;
  --bg-alt:#0C0B22;
  --surface:#12102E;
  --line:rgba(140,150,255,.16);
  --line-strong:rgba(140,150,255,.32);
  --cyan:#3FD8FF;
  --cyan-deep:#1B9FD8;
  --purple:#7C5CFF;
  --gold:#FFC46B;
  --text:#EAF0FF;
  --muted:#A8B2D8;
  --dim:#6E789E;
  --ok:#35E0A1;
  --warn:#FF6B8A;
  --grad:linear-gradient(135deg,#3FD8FF 0%,#7C5CFF 100%);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:22px;
  --r-pill:999px;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","MiSans","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:ui-monospace,"SF Mono","JetBrains Mono",var(--font-sans);
  --shadow:inset 0 1px 0 rgba(255,255,255,.06),0 18px 48px -28px rgba(0,0,0,.85);
  --t:180ms cubic-bezier(.2,.7,.3,1);

  --bs-body-bg:#07061A;
  --bs-body-color:#EAF0FF;
  --bs-primary:#3FD8FF;
  --bs-border-color:rgba(140,150,255,.16);
  --bs-border-radius:16px;
  --bs-link-color:#3FD8FF;
  --bs-link-hover-color:#7C5CFF;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","MiSans","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:132px}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--font-sans);font-size:16px;line-height:1.8;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--t),border-color var(--t),background-color var(--t),transform var(--t)}
button,input{font-family:inherit}
h1,h2,h3,h4{margin:0;letter-spacing:-0.01em}
p{margin:0 0 .9em}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

.container,.container-lg,.container-md,.container-sm{
  width:100%;max-width:1200px;margin-inline:auto;padding-inline:24px;
}
@media (min-width:1400px){.container{max-width:1280px}}
@media (max-width:767px){.container{padding-inline:20px}}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:1030}
.nav-top{
  position:relative;
  background:rgba(7,6,26,.84);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(140,150,255,.10);
  transition:background var(--t),border-color var(--t);
}
.site-header.scrolled .nav-top{background:rgba(5,4,20,.94);border-color:rgba(140,150,255,.18)}
.nav-top-inner{display:flex;align-items:center;gap:28px;height:64px;transition:height var(--t)}
.site-header.scrolled .nav-top-inner{height:56px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.brand-mark{width:34px;height:34px;flex:none}
.brand-text{font-size:19px;font-weight:700;letter-spacing:-0.01em;color:var(--text)}
.brand-text em{font-style:normal;font-weight:600;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;margin-left:2px}
.nav-main{display:flex;align-items:center;gap:6px;margin-inline:auto}
.nav-main a{
  position:relative;padding:8px 12px;border-radius:var(--r-pill);
  font-size:15px;color:var(--muted);
}
.nav-main a:hover{color:var(--text);background:rgba(255,255,255,.06)}
.nav-main a.active{color:var(--cyan)}
.nav-main a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  border-radius:2px;background:var(--grad);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex:none}
.search-wrap{display:flex;align-items:center;gap:8px}
.search-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:var(--r-pill);
  background:transparent;border:1px solid var(--line);color:var(--muted);
  cursor:pointer;transition:all var(--t);
}
.search-toggle:hover{color:var(--cyan);border-color:var(--line-strong)}
.search-box{width:0;overflow:hidden;transition:width var(--t)}
.search-wrap.open .search-box{width:212px}
.search-box input{
  width:212px;padding:8px 16px;font-size:14px;color:var(--text);
  background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--r-pill);
}
.search-box input::placeholder{color:var(--dim)}
.search-box input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 4px rgba(63,216,255,.12)}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:var(--r-sm);
  background:transparent;border:1px solid var(--line);color:var(--text);cursor:pointer;
}
.nav-channel{
  background:#050415;
  border-bottom:1px solid rgba(140,150,255,.12);
}
.nav-channel-inner{
  display:flex;align-items:center;gap:10px;height:48px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.nav-channel-inner::-webkit-scrollbar{display:none}
.pill{
  flex:0 0 auto;padding:7px 16px;border-radius:var(--r-pill);
  font-size:14px;color:var(--muted);border:1px solid transparent;white-space:nowrap;
}
.pill:hover{background:rgba(255,255,255,.08);color:var(--text)}
.pill.active{
  color:var(--cyan);border-color:rgba(63,216,255,.55);
  background:linear-gradient(135deg,rgba(63,216,255,.12),rgba(124,92,255,.12));
  box-shadow:inset 0 0 12px rgba(63,216,255,.18);
}

@media (max-width:991px){
  .nav-main{
    position:absolute;top:100%;left:0;right:0;display:none;
    flex-direction:column;align-items:stretch;gap:2px;
    padding:14px 24px 18px;margin:0;
    background:#0C0B22;border-bottom:1px solid var(--line);
    box-shadow:0 24px 48px -28px rgba(0,0,0,.9);
  }
  .nav-main.open{display:flex}
  .nav-main a{padding:11px 14px;border-radius:var(--r-sm);font-size:15px}
  .nav-main a.active::after{display:none}
  .nav-main a.active{background:rgba(63,216,255,.10)}
  .nav-toggle{display:inline-flex}
}
@media (max-width:575px){
  .search-wrap.open{position:absolute;left:20px;right:20px;top:100%;padding:12px 0;background:var(--bg-alt);border-bottom:1px solid var(--line)}
  .search-wrap.open .search-box,.search-wrap.open .search-box input{width:100%}
  .search-wrap.open .search-toggle{display:none}
  .nav-actions .btn-main{display:none}
}

/* ---------- 按钮 ---------- */
.btn{
  border-radius:var(--r-pill);font-size:15px;font-weight:600;letter-spacing:.01em;
  padding:11px 22px;line-height:1.4;border:1px solid transparent;box-shadow:none;
  transition:all var(--t);display:inline-flex;align-items:center;gap:8px;
}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-main{background:var(--grad);color:#fff;box-shadow:0 10px 30px -14px rgba(63,216,255,.85)}
.btn-main:hover,.btn-main:focus{color:#fff;transform:translateY(-1px);box-shadow:0 16px 40px -14px rgba(63,216,255,1)}
.btn-main:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line-strong)}
.btn-ghost:hover{color:var(--text);border-color:var(--cyan);background:rgba(255,255,255,.08)}
.btn-text{background:none;border:none;padding:0;color:var(--cyan);font-weight:600;font-size:15px}
.btn-text:hover{text-decoration:underline;text-underline-offset:5px;color:var(--cyan)}

/* ---------- 通用区块 ---------- */
.section{padding-block:clamp(56px,8vw,112px)}
.section-alt{background:var(--bg-alt)}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:38px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;color:var(--cyan);
  text-transform:none;margin-bottom:10px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--grad)}
.sec-title{font-size:clamp(24px,2.6vw,38px);font-weight:700;line-height:1.25}
.sec-desc{color:var(--muted);font-size:15px;max-width:640px;margin:10px 0 0}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--cyan);font-size:15px;font-weight:600}
.link-arrow svg{transition:transform var(--t)}
.link-arrow:hover svg{transform:translateX(4px)}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding-block:clamp(44px,6vw,76px) clamp(48px,6vw,80px);
  background:
    radial-gradient(circle at 88% 6%,rgba(63,216,255,.16),transparent 46%),
    radial-gradient(circle at 6% 92%,rgba(124,92,255,.18),transparent 50%),
    var(--bg);
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.7;
  background-image:
    radial-gradient(1.4px 1.4px at 12% 22%,rgba(255,255,255,.55),transparent),
    radial-gradient(1.2px 1.2px at 32% 68%,rgba(255,255,255,.38),transparent),
    radial-gradient(1.6px 1.6px at 58% 16%,rgba(63,216,255,.7),transparent),
    radial-gradient(1.2px 1.2px at 74% 56%,rgba(255,255,255,.42),transparent),
    radial-gradient(1.5px 1.5px at 88% 28%,rgba(255,196,107,.6),transparent),
    radial-gradient(1.2px 1.2px at 46% 84%,rgba(255,255,255,.3),transparent);
  background-size:520px 520px;
}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--dim);margin-bottom:20px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--cyan)}
.crumbs em{font-style:normal;color:var(--dim)}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);font-size:13px;color:var(--cyan);
  background:rgba(63,216,255,.10);border:1px solid rgba(63,216,255,.28);margin-bottom:18px;
}
.hero-badge i{width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px rgba(63,216,255,.9)}
h1{font-size:clamp(30px,4.6vw,56px);font-weight:700;line-height:1.15;letter-spacing:-0.02em;margin-bottom:18px}
h1 .hl{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:17px;line-height:1.8;color:var(--muted);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-visual{position:relative}
.hero-visual .shot{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);aspect-ratio:4/3;background:var(--surface);
}
.hero-visual .shot img{width:100%;height:100%;object-fit:cover}
.hero-visual .shot::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,6,26,.10) 0%,rgba(7,6,26,.72) 100%);
}
.hero-visual .shot-cap{
  position:absolute;left:18px;right:18px;bottom:18px;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 16px;border-radius:var(--r-md);
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.hero-visual .shot-cap span{font-size:13px;color:var(--muted)}
.hero-visual .shot-cap b{font-family:var(--font-num);font-size:15px;color:var(--text)}
.orbit{position:absolute;left:-42px;top:-38px;width:150px;height:150px;opacity:.6;pointer-events:none}

.kpi-row{
  position:relative;z-index:1;margin-top:clamp(38px,5vw,58px);
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
}
.kpi{
  padding:20px 22px;border-radius:var(--r-lg);
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.10);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:var(--shadow);
}
.kpi b{
  display:block;font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:clamp(24px,2.8vw,34px);font-weight:700;line-height:1.2;
  color:#fff;text-shadow:0 0 26px rgba(63,216,255,.55);
}
.kpi small{display:block;margin-top:6px;font-size:13px;color:var(--muted)}

/* ---------- 对照表 ---------- */
.table-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow);overflow:hidden;
}
.table-meta{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  padding:18px 24px;border-bottom:1px solid var(--line);background:rgba(12,11,34,.7);
}
.table-meta .tag{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);
}
.table-meta .tag b{color:var(--gold);font-family:var(--font-num)}
.data-scroll{overflow-x:auto;scrollbar-width:thin}
.data-table{width:100%;border-collapse:collapse;min-width:860px}
.data-table thead th{
  background:#0C0B22;color:var(--muted);font-size:13px;font-weight:600;letter-spacing:.04em;
  text-align:left;padding:14px 20px;border-bottom:1px solid var(--line);white-space:nowrap;
}
.data-table tbody td{
  padding:17px 20px;font-size:15px;color:var(--text);
  border-bottom:1px solid rgba(140,150,255,.10);vertical-align:middle;
}
.data-table tbody tr{transition:background var(--t)}
.data-table tbody tr:hover{background:rgba(63,216,255,.06)}
.data-table tbody tr:last-child td{border-bottom:none}
.data-table .league{font-weight:600}
.data-table .time{font-family:var(--font-num);font-variant-numeric:tabular-nums;color:var(--cyan);white-space:nowrap}
.data-table .versus{font-weight:600}
.data-table .stat{font-size:14px;color:var(--muted)}
.badge-soft{
  display:inline-block;padding:3px 10px;margin-left:8px;border-radius:var(--r-pill);
  font-size:12px;color:var(--gold);background:rgba(255,196,107,.12);border:1px solid rgba(255,196,107,.3);
}
.badge-soft.cool{color:var(--cyan);background:rgba(63,216,255,.10);border-color:rgba(63,216,255,.3)}
.table-note{padding:16px 24px;font-size:13px;color:var(--dim);border-top:1px solid var(--line);background:rgba(12,11,34,.5)}

/* ---------- 字段说明 4/8 ---------- */
.split{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.split-side{position:sticky;top:132px}
.split-side p{color:var(--muted);font-size:15px;margin-top:14px}
.field-list{border-top:1px solid var(--line)}
.field-item{
  position:relative;display:grid;grid-template-columns:64px 1fr;gap:22px;
  padding:24px 22px;border-bottom:1px solid var(--line);transition:background var(--t),padding-left var(--t);
}
.field-item::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:3px;border-radius:3px;
  background:var(--grad);opacity:0;transition:opacity var(--t);
}
.field-item:hover{background:rgba(255,255,255,.04);padding-left:28px}
.field-item:hover::before{opacity:1}
.field-no{
  font-family:var(--font-num);font-size:26px;font-weight:700;line-height:1.2;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.field-item h3{font-size:17px;font-weight:600;margin-bottom:6px}
.field-item p{font-size:15px;color:var(--muted);margin:0}

/* ---------- 场景横滑 ---------- */
.scene-strip{
  display:flex;gap:20px;overflow-x:auto;padding-bottom:14px;scroll-snap-type:x mandatory;
  scrollbar-width:thin;
}
.scene-card{
  flex:0 0 320px;scroll-snap-align:start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px 24px;box-shadow:var(--shadow);transition:all var(--t);
}
.scene-card:hover{transform:translateY(-4px);border-color:rgba(63,216,255,.45)}
.scene-card .ico{
  width:42px;height:42px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(124,92,255,.16);border:1px solid rgba(124,92,255,.32);color:var(--cyan);margin-bottom:16px;
}
.scene-card h3{font-size:17px;font-weight:600;margin-bottom:10px}
.scene-card p{font-size:14px;color:var(--muted);margin:0}

/* ---------- 更新节奏 Z 字 ---------- */
.zig{display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:center}
.zig .pic{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);aspect-ratio:16/11;background:var(--surface);box-shadow:var(--shadow)}
.zig .pic img{width:100%;height:100%;object-fit:cover}
.check-list{margin-top:22px;display:grid;gap:14px}
.check-list li{display:grid;grid-template-columns:22px 1fr;gap:12px;font-size:15px;color:var(--muted)}
.check-list svg{margin-top:6px;color:var(--cyan)}

/* ---------- FAQ ---------- */
.faq-acc .accordion-item{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.10);
  border-radius:var(--r-md);margin-bottom:14px;overflow:hidden;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:border-color var(--t);
}
.faq-acc .accordion-item:has(.accordion-button:not(.collapsed)){border-color:rgba(63,216,255,.45)}
.faq-acc .accordion-button{
  background:transparent;box-shadow:none;color:var(--text);
  font-size:16px;font-weight:600;padding:18px 22px;border-radius:var(--r-md);
  position:relative;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--cyan);background:transparent;box-shadow:none}
.faq-acc .accordion-button:not(.collapsed)::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;background:var(--grad);
}
.faq-acc .accordion-button::after{
  content:"";flex:none;width:16px;height:16px;
  background-image:linear-gradient(var(--cyan),var(--cyan)),linear-gradient(var(--cyan),var(--cyan));
  background-size:16px 2px,2px 16px;background-position:center,center;background-repeat:no-repeat;
  transition:transform var(--t);
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(45deg)}
.faq-acc .accordion-body{padding:0 22px 20px;font-size:15px;color:var(--muted)}
.faq-acc .accordion-button:focus{box-shadow:0 0 0 4px rgba(63,216,255,.12)}
.faq-side .contact-box{
  margin-top:24px;padding:20px;border-radius:var(--r-md);
  background:var(--surface);border:1px solid var(--line);
}
.faq-side .contact-box p{font-size:14px;color:var(--muted);margin:0 0 14px}

/* ---------- CTA ---------- */
.cta-wrap{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow);
}
.cta-wrap .cta-bg{position:absolute;inset:0}
.cta-wrap .cta-bg img{width:100%;height:100%;object-fit:cover;opacity:.20}
.cta-wrap .cta-bg::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 12% 0%,rgba(63,216,255,.22),transparent 52%),
             radial-gradient(circle at 92% 100%,rgba(124,92,255,.24),transparent 55%),
             linear-gradient(180deg,rgba(7,6,26,.72),rgba(7,6,26,.92));
}
.cta-inner{
  position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:28px;
  align-items:center;justify-content:space-between;padding:clamp(30px,4vw,52px);
}
.cta-inner h2{font-size:clamp(22px,2.4vw,32px);font-weight:700;margin-bottom:10px}
.cta-inner p{color:var(--muted);font-size:15px;max-width:620px;margin:0}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 相关分类 ---------- */
.relate{padding-block:clamp(34px,4vw,52px);border-top:1px solid var(--line)}
.relate-inner{display:flex;flex-wrap:wrap;align-items:center;gap:14px}
.relate-inner .label{font-size:14px;color:var(--dim);margin-right:4px}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;margin-top:0;padding-block:0 36px;background:#050415;
  border-top:1px solid rgba(140,150,255,.14);
}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.55;
  background-image:
    radial-gradient(1.3px 1.3px at 18% 30%,rgba(255,255,255,.4),transparent),
    radial-gradient(1.5px 1.5px at 62% 18%,rgba(63,216,255,.55),transparent),
    radial-gradient(1.2px 1.2px at 84% 66%,rgba(255,255,255,.3),transparent);
  background-size:460px 460px;
}
.footer-bar{
  position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:20px;
  align-items:center;justify-content:space-between;
  margin-top:-1px;padding:24px 28px;border-radius:0 0 var(--r-lg) var(--r-lg);
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.10);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transform:translateY(0);
}
.footer-bar strong{display:block;font-size:17px;font-weight:600}
.footer-bar span{display:block;font-size:14px;color:var(--muted);margin-top:4px}
.subscribe{display:flex;gap:10px;flex-wrap:wrap}
.subscribe input{
  width:230px;padding:11px 16px;font-size:14px;color:var(--text);
  background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--r-pill);
}
.subscribe input::placeholder{color:var(--dim)}
.subscribe input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 4px rgba(63,216,255,.12)}
.footer-cols{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;
  padding-block:52px 40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-cols h4{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px;letter-spacing:.02em}
.footer-cols p{font-size:14px;color:var(--muted);line-height:1.9}
.footer-cols ul{display:grid;gap:10px}
.footer-cols ul a{font-size:14px;color:var(--muted);display:inline-block}
.footer-cols ul a:hover{color:var(--cyan);transform:translateX(2px)}
.footer-contact li{font-size:14px;color:var(--muted)}
.footer-contact span{color:var(--dim)}
.footer-bottom{
  position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  padding-top:22px;border-top:1px solid rgba(140,150,255,.12);
  font-size:13px;color:var(--dim);
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:1040;
  display:inline-flex;align-items:center;gap:10px;
  padding:13px 22px;border-radius:var(--r-pill);
  background:var(--grad);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 14px 38px -12px rgba(63,216,255,.9);
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity var(--t),transform var(--t),visibility var(--t);
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta:hover{color:#fff;transform:translateY(-2px)}
.fc-mobile{display:none}

@media (max-width:991px){
  .hero-inner{grid-template-columns:1fr;gap:34px}
  .hero-visual{order:-1}
  .kpi-row{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:30px}
  .split-side{position:static}
  .zig{grid-template-columns:1fr;gap:30px}
  .footer-cols{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:767px){
  .scene-card{flex:0 0 82%}
  .data-scroll{
    -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 26px,#000 calc(100% - 26px),transparent 100%);
    mask-image:linear-gradient(90deg,transparent 0,#000 26px,#000 calc(100% - 26px),transparent 100%);
  }
  .cta-inner{padding:28px 22px}
  .float-cta{
    right:0;left:0;bottom:0;border-radius:0;justify-content:space-between;
    padding:16px 20px calc(16px + env(safe-area-inset-bottom));
    box-shadow:0 -10px 30px -12px rgba(0,0,0,.9);
  }
  .fc-desktop,.fc-arrow{display:none}
  .fc-mobile{display:inline;font-size:14px}
}
@media (max-width:575px){
  .kpi-row{grid-template-columns:1fr 1fr;gap:14px}
  .kpi{padding:16px 18px}
  .field-item{grid-template-columns:48px 1fr;gap:16px;padding:20px 16px}
  .footer-cols{grid-template-columns:1fr}
  .footer-bar{padding:22px 20px}
  .subscribe input{width:100%}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition:none!important;animation:none!important}
}

/* roulang page: category4 */
:root{
  --bg:#07061A;
  --bg-alt:#0C0B22;
  --surface:#12102E;
  --glass:rgba(255,255,255,.05);
  --glass-line:rgba(255,255,255,.10);
  --line:rgba(140,150,255,.16);
  --line-strong:rgba(140,150,255,.32);
  --cyan:#3FD8FF;
  --cyan-deep:#1B9FD8;
  --violet:#7C5CFF;
  --gold:#FFC46B;
  --ok:#35E0A1;
  --warn:#FF6B8A;
  --text:#EAF0FF;
  --muted:#A8B2D8;
  --dim:#6E789E;
  --grad:linear-gradient(135deg,#3FD8FF 0%,#7C5CFF 100%);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:22px;
  --r-pill:999px;
  --shadow: inset 0 1px 0 rgba(255,255,255,.06), 0 18px 48px -28px rgba(0,0,0,.85);
  --shadow-hover: inset 0 1px 0 rgba(255,255,255,.08), 0 26px 60px -30px rgba(0,0,0,.9);
  --t:180ms cubic-bezier(.2,.7,.3,1);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","MiSans","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:ui-monospace,"SF Mono","JetBrains Mono",var(--font-sans);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:132px;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  overflow-x:hidden;
  --bs-body-bg:var(--bg);
  --bs-body-color:var(--text);
  --bs-primary:var(--cyan);
  --bs-primary-rgb:63,216,255;
  --bs-border-color:var(--line);
  --bs-border-radius:var(--r-md);
  --bs-link-color:var(--cyan);
  --bs-link-hover-color:var(--cyan);
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color var(--t),border-color var(--t),background-color var(--t)}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
button,input,textarea,select{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
::selection{background:rgba(63,216,255,.28);color:#fff}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media(min-width:1400px){.container{max-width:1280px}}
.skip-link{position:absolute;left:-9999px;top:0;z-index:2000;background:var(--surface);padding:10px 18px;border-radius:var(--r-sm)}
.skip-link:focus{left:16px;top:16px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:1030}
.nav-top{background:rgba(7,6,26,.88);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line);transition:background-color var(--t)}
.nav-top-inner{display:flex;align-items:center;gap:22px;height:64px;transition:height var(--t)}
.site-header.shrink .nav-top{background:rgba(7,6,26,.96)}
.site-header.shrink .nav-top-inner{height:56px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:34px;height:34px;flex:0 0 34px}
.brand-text{font-size:20px;font-weight:700;letter-spacing:-.01em;color:var(--text)}
.brand-text em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;margin-left:1px}
.nav-main{display:flex;align-items:center;gap:2px;flex:1 1 auto;justify-content:center}
.nav-main a{position:relative;padding:8px 12px;font-size:15px;color:var(--muted);border-radius:var(--r-sm);white-space:nowrap}
.nav-main a::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform var(--t)}
.nav-main a:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav-main a.active{color:#fff}
.nav-main a.active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.search-wrap{display:flex;align-items:center;gap:8px}
.search-toggle{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:var(--r-pill);border:1px solid var(--line);color:var(--muted);transition:color var(--t),border-color var(--t),background-color var(--t)}
.search-toggle:hover{color:var(--cyan);border-color:var(--line-strong);background:rgba(255,255,255,.04)}
.search-box{width:0;overflow:hidden;transition:width var(--t)}
.search-wrap.open .search-box{width:210px}
.search-box input{width:210px;height:38px;padding:0 16px;border-radius:var(--r-pill);border:1px solid var(--line);background:var(--bg-alt);color:var(--text);font-size:14px}
.search-box input::placeholder{color:var(--dim)}
.search-box input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 4px rgba(63,216,255,.12)}
.nav-toggle{display:none;align-items:center;justify-content:center;width:38px;height:38px;border-radius:var(--r-sm);border:1px solid var(--line);color:var(--muted)}
.nav-toggle:hover{color:var(--text);border-color:var(--line-strong)}
.nav-sub{background:rgba(4,3,16,.94);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid rgba(140,150,255,.12)}
.nav-sub-inner{display:flex;align-items:center;gap:10px;height:48px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.nav-sub-inner::-webkit-scrollbar{display:none}
.pill{display:inline-flex;align-items:center;gap:6px;padding:6px 16px;border-radius:var(--r-pill);border:1px solid transparent;font-size:14px;color:var(--muted);white-space:nowrap;transition:all var(--t)}
.pill:hover{background:rgba(255,255,255,.08);color:var(--text)}
.pill.active{color:#fff;border-color:rgba(63,216,255,.55);background:rgba(63,216,255,.10);box-shadow:inset 0 0 14px rgba(63,216,255,.16)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:var(--r-pill);border:1px solid transparent;font-size:15px;font-weight:600;letter-spacing:.01em;line-height:1.2;transition:all var(--t);cursor:pointer}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-main{background:var(--grad);color:#fff;box-shadow:0 0 0 1px rgba(255,255,255,.06),0 14px 34px -14px rgba(63,216,255,.7)}
.btn-main:hover{color:#fff;filter:brightness(1.08);box-shadow:0 0 0 1px rgba(255,255,255,.1),0 20px 44px -14px rgba(124,92,255,.75);transform:translateY(-1px)}
.btn-main:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text)}
.btn-ghost:hover{border-color:var(--cyan);background:rgba(255,255,255,.08);color:#fff}
.btn-text{color:var(--cyan);font-weight:600;padding:0;border:0}
.btn-text:hover{text-decoration:underline;text-underline-offset:4px}

/* ---------- breadcrumb ---------- */
.crumbs{background:var(--bg);border-bottom:1px solid var(--line)}
.crumbs-inner{display:flex;align-items:center;gap:8px;height:44px;font-size:13px;color:var(--dim);overflow-x:auto;white-space:nowrap}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--cyan)}
.crumbs .sep{color:var(--dim)}
.crumbs .current{color:var(--dim)}

/* ---------- banner ---------- */
.page-banner{position:relative;overflow:hidden;background:var(--bg-alt);border-bottom:1px solid var(--line)}
.page-banner::before{content:"";position:absolute;inset:0;background:
  radial-gradient(760px 320px at 12% 8%,rgba(63,216,255,.16),transparent 70%),
  radial-gradient(640px 300px at 88% 100%,rgba(124,92,255,.18),transparent 72%);
  pointer-events:none}
.page-banner::after{content:"";position:absolute;inset:0;background-image:
  radial-gradient(1.6px 1.6px at 12% 26%,rgba(255,255,255,.55),transparent 60%),
  radial-gradient(1.4px 1.4px at 38% 68%,rgba(255,255,255,.4),transparent 60%),
  radial-gradient(1.6px 1.6px at 68% 22%,rgba(255,255,255,.45),transparent 60%),
  radial-gradient(1.2px 1.2px at 84% 62%,rgba(255,255,255,.35),transparent 60%);
  opacity:.7;pointer-events:none}
.banner-inner{position:relative;z-index:2;display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:center;min-height:320px;padding:44px 0}
.banner-copy{max-width:640px}
.badge-line{display:inline-flex;align-items:center;gap:8px;padding:5px 14px;border-radius:var(--r-pill);background:var(--glass);border:1px solid var(--glass-line);font-size:13px;color:var(--cyan);letter-spacing:.04em}
.badge-line i{width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan);font-style:normal}
.banner-copy h1{font-size:clamp(30px,4.6vw,52px);font-weight:700;line-height:1.15;letter-spacing:-.02em;margin:18px 0 14px}
.banner-copy h1 span{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.banner-copy p{color:var(--muted);font-size:16px;max-width:560px}
.banner-visual{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);aspect-ratio:16/10;box-shadow:var(--shadow)}
.banner-visual img{width:100%;height:100%;object-fit:cover}
.banner-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,6,26,.05),rgba(7,6,26,.62))}
.orbit{position:absolute;left:-40px;bottom:-56px;width:280px;height:280px;border-radius:50%;border:1px solid rgba(63,216,255,.3);z-index:3;pointer-events:none}
.orbit::after{content:"";position:absolute;inset:34px;border-radius:50%;border:1px solid rgba(124,92,255,.28)}

/* ---------- hero data bar (glass) ---------- */
.data-bar{position:relative;z-index:3;display:grid;grid-template-columns:repeat(4,1fr);gap:1px;margin:0 0 48px;border-radius:var(--r-lg);overflow:hidden;background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid var(--glass-line);box-shadow:var(--shadow)}
.data-bar div{padding:20px 24px;background:rgba(255,255,255,.02)}
.data-bar strong{display:block;font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:26px;font-weight:700;line-height:1.2;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;text-shadow:0 0 26px rgba(63,216,255,.28)}
.data-bar span{font-size:13px;color:var(--muted)}

/* ---------- section base ---------- */
.section{padding:clamp(56px,8vw,112px) 0}
.section.alt{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:32px}
.sec-head h2{font-size:clamp(24px,2.6vw,36px);font-weight:700;line-height:1.25;letter-spacing:-.01em}
.sec-head p{color:var(--muted);font-size:15px;max-width:600px;margin-top:10px}
.eyebrow{font-size:13px;letter-spacing:.16em;color:var(--cyan);text-transform:uppercase;margin-bottom:10px;display:block}

/* ---------- filter pills ---------- */
.filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:24px}
.filter{display:inline-flex;align-items:center;padding:8px 18px;border-radius:var(--r-pill);border:1px solid var(--line);color:var(--muted);font-size:14px;background:transparent;transition:all var(--t)}
.filter:hover{border-color:var(--line-strong);color:var(--text);background:rgba(255,255,255,.04)}
.filter.active{color:#fff;border-color:rgba(63,216,255,.55);background:rgba(63,216,255,.10);box-shadow:inset 0 0 14px rgba(63,216,255,.16)}

/* ---------- wall ---------- */
.wall{display:grid;grid-template-columns:repeat(12,1fr);gap:16px;grid-auto-rows:200px}
.tile{position:relative;grid-column:span 4;overflow:hidden;border-radius:var(--r-md);border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow);transition:border-color var(--t),transform var(--t)}
.tile.w-6{grid-column:span 6}
.tile.w-4{grid-column:span 4}
.tile.w-3{grid-column:span 3}
.tile.tall{grid-row:span 2}
.tile img{width:100%;height:100%;object-fit:cover;transition:transform 420ms cubic-bezier(.2,.7,.3,1)}
.tile::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,6,26,.16) 0%,rgba(7,6,26,.86) 78%,rgba(7,6,26,.94) 100%);transition:opacity var(--t)}
.tile:hover{border-color:rgba(63,216,255,.45)}
.tile:hover img{transform:scale(1.04)}
.tile:hover::after{opacity:.78}
.tile-tag{position:absolute;top:14px;left:14px;z-index:3;padding:4px 12px;border-radius:var(--r-pill);font-size:12px;color:var(--cyan);background:var(--glass);border:1px solid var(--glass-line);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.tile-cap{position:absolute;left:0;right:0;bottom:0;z-index:3;padding:18px 20px;transform:translateY(6px);transition:transform var(--t)}
.tile:hover .tile-cap{transform:translateY(0)}
.tile-cap h3{font-size:17px;font-weight:600;color:#fff}
.tile-cap p{font-size:13px;color:var(--muted);margin-top:6px;max-width:92%}
.tile.tall .tile-cap h3{font-size:22px}
.tile.tall .tile-cap p{font-size:14px}
.tile:focus-within{border-color:var(--cyan)}

/* ---------- dimension list (asymmetric) ---------- */
.split{display:grid;grid-template-columns:5fr 7fr;gap:32px;align-items:start}
.sticky-side{position:sticky;top:132px}
.sticky-side h2{font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.3}
.sticky-side p{color:var(--muted);margin-top:14px}
.side-note{margin-top:22px;padding:18px 20px;border-radius:var(--r-md);background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);font-size:14px;color:var(--muted)}
.side-note strong{display:block;color:var(--text);font-size:15px;margin-bottom:6px}
.dim-list{border-top:1px solid var(--line)}
.dim-item{position:relative;display:grid;grid-template-columns:88px 1fr;gap:20px;padding:26px 20px 26px 14px;border-bottom:1px solid var(--line);transition:background-color var(--t)}
.dim-item::before{content:"";position:absolute;left:0;top:22%;bottom:22%;width:3px;border-radius:3px;background:var(--grad);opacity:0;transition:opacity var(--t)}
.dim-item:hover{background:rgba(255,255,255,.04)}
.dim-item:hover::before{opacity:1}
.dim-num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:34px;font-weight:700;line-height:1;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.dim-body h3{font-size:18px;font-weight:600}
.dim-body p{color:var(--muted);font-size:15px;margin-top:8px}
.dim-body .k{display:inline-block;margin-top:12px;font-size:13px;color:var(--cyan);border-bottom:1px dashed rgba(63,216,255,.45)}

/* ---------- faq ---------- */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:32px;align-items:start}
.faq-layout .sticky-side p{margin-bottom:20px}
.accordion-item{background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid var(--glass-line);border-radius:var(--r-md)!important;margin-bottom:12px;overflow:hidden}
.accordion-button{position:relative;display:flex;align-items:center;justify-content:space-between;gap:18px;width:100%;padding:18px 22px;font-size:16px;font-weight:600;color:var(--text);background:transparent;box-shadow:none!important;border-radius:0!important;text-align:left}
.accordion-button::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;background:var(--grad);opacity:0;transition:opacity var(--t)}
.accordion-button:not(.collapsed){color:#fff;background:rgba(255,255,255,.04)}
.accordion-button:not(.collapsed)::before{opacity:1}
.accordion-button:hover{background:rgba(255,255,255,.05)}
.accordion-button::after{display:none!important}
.acc-mark{position:relative;flex:0 0 22px;width:22px;height:22px}
.acc-mark::before,.acc-mark::after{content:"";position:absolute;background:var(--cyan);border-radius:2px;transition:transform var(--t),opacity var(--t)}
.acc-mark::before{left:0;right:0;top:10px;height:2px}
.acc-mark::after{top:0;bottom:0;left:10px;width:2px}
.accordion-button:not(.collapsed) .acc-mark::after{transform:rotate(90deg);opacity:0}
.accordion-button:not(.collapsed) .acc-mark{transform:rotate(180deg);transition:transform var(--t)}
.accordion-body{padding:4px 22px 22px;color:var(--muted);font-size:15px}

/* ---------- cta band ---------- */
.cta-band{position:relative;overflow:hidden}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:7fr 5fr;gap:32px;align-items:center;padding:clamp(32px,4vw,52px);border-radius:var(--r-lg);background:var(--bg-alt);border:1px solid var(--line);box-shadow:var(--shadow)}
.cta-inner::before{content:"";position:absolute;inset:0;border-radius:var(--r-lg);background:
  radial-gradient(520px 220px at 84% 0%,rgba(63,216,255,.16),transparent 70%),
  radial-gradient(460px 240px at 8% 100%,rgba(124,92,255,.18),transparent 72%);
  pointer-events:none}
.cta-inner h2{position:relative;font-size:clamp(22px,2.4vw,32px);font-weight:700;line-height:1.3}
.cta-inner p{position:relative;color:var(--muted);margin-top:12px;font-size:15px}
.cta-actions{position:relative;display:flex;gap:14px;flex-wrap:wrap;justify-content:flex-end}
.related-cats{position:relative;z-index:2;display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:26px;padding-top:22px;border-top:1px solid var(--line)}
.related-cats span{font-size:13px;color:var(--dim);letter-spacing:.06em}

/* ---------- footer ---------- */
.site-footer{background:var(--bg);border-top:1px solid var(--line);padding:clamp(44px,6vw,72px) 0 26px;position:relative;overflow:hidden}
.site-footer::before{content:"";position:absolute;inset:0;background-image:
  radial-gradient(1.4px 1.4px at 8% 22%,rgba(255,255,255,.42),transparent 60%),
  radial-gradient(1.2px 1.2px at 44% 12%,rgba(255,255,255,.3),transparent 60%),
  radial-gradient(1.4px 1.4px at 78% 30%,rgba(255,255,255,.34),transparent 60%);
  opacity:.6;pointer-events:none}
.footer-bar{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;padding:22px 26px;border-radius:var(--r-lg);background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid var(--glass-line);box-shadow:var(--shadow)}
.footer-bar strong{display:block;font-size:16px}
.footer-bar span{font-size:13px;color:var(--muted)}
.subscribe{display:flex;gap:10px;flex-wrap:wrap}
.subscribe input{width:230px;height:40px;padding:0 16px;border-radius:var(--r-pill);border:1px solid var(--line);background:var(--bg-alt);color:var(--text);font-size:14px}
.subscribe input::placeholder{color:var(--dim)}
.subscribe input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 4px rgba(63,216,255,.12)}
.footer-cols{position:relative;z-index:2;display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;padding:44px 0 32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-cols h4{font-size:15px;font-weight:600;margin-bottom:14px;color:var(--text)}
.footer-cols p{font-size:13px;color:var(--muted);max-width:320px}
.footer-cols ul li{margin-bottom:9px}
.footer-cols ul a{font-size:13px;color:var(--muted)}
.footer-cols ul a:hover{color:var(--cyan);transform:translateX(2px);display:inline-block}
.footer-contact span{color:var(--dim);font-size:13px}
.footer-bottom{position:relative;z-index:2;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:20px;border-top:1px solid var(--line);font-size:13px;color:var(--dim)}

/* ---------- floating cta ---------- */
.float-cta{position:fixed;right:24px;bottom:24px;z-index:1040;display:inline-flex;align-items:center;gap:10px;padding:13px 22px;border-radius:var(--r-pill);background:var(--grad);color:#fff;font-size:15px;font-weight:600;box-shadow:0 14px 40px -12px rgba(63,216,255,.65);opacity:0;transform:translateY(14px);pointer-events:none;transition:opacity var(--t),transform var(--t)}
.float-cta.show{opacity:1;transform:none;pointer-events:auto}
.float-cta:hover{filter:brightness(1.08)}

/* ---------- responsive ---------- */
@media(max-width:1199.98px){
  .footer-cols{grid-template-columns:1.4fr 1fr 1fr;gap:26px}
}
@media(max-width:991.98px){
  .nav-main{position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:2px;background:var(--bg-alt);border-bottom:1px solid var(--line);padding:12px 20px 18px;display:none;justify-content:flex-start}
  .site-header.nav-open .nav-main{display:flex}
  .nav-main a{padding:11px 12px;font-size:15px}
  .nav-main a::after{display:none}
  .nav-toggle{display:inline-flex}
  .nav-main a.active{background:rgba(63,216,255,.10);color:#fff}
  .banner-inner{grid-template-columns:1fr;gap:26px;padding:34px 0 40px;min-height:0}
  .banner-visual{aspect-ratio:16/9}
  .data-bar{grid-template-columns:repeat(2,1fr)}
  .split,.faq-layout{grid-template-columns:1fr;gap:26px}
  .sticky-side{position:static}
  .wall{grid-template-columns:repeat(8,1fr);grid-auto-rows:190px}
  .tile.w-6{grid-column:span 4}
  .tile.w-4{grid-column:span 4}
  .tile.w-3{grid-column:span 4}
  .cta-inner{grid-template-columns:1fr}
  .cta-actions{justify-content:flex-start}
  .footer-cols{grid-template-columns:1fr 1fr;gap:26px}
}
@media(max-width:767.98px){
  .container{padding:0 20px}
  .nav-actions .btn-sm{display:none}
  .search-wrap.open .search-box{width:150px}
  .search-box input{width:150px}
  .data-bar{grid-template-columns:1fr 1fr;margin-bottom:34px}
  .data-bar strong{font-size:22px}
  .wall{grid-template-columns:repeat(6,1fr);grid-auto-rows:168px;gap:12px}
  .tile.w-6{grid-column:span 6}
  .tile.w-4{grid-column:span 3}
  .tile.w-3{grid-column:span 3}
  .tile.tall{grid-row:span 1}
  .tile-cap{padding:14px 15px;transform:none}
  .tile-cap h3,.tile.tall .tile-cap h3{font-size:15px}
  .tile-cap p{font-size:12px;display:none}
  .dim-item{grid-template-columns:56px 1fr;gap:14px;padding:20px 12px}
  .dim-num{font-size:26px}
  .footer-cols{grid-template-columns:1fr;gap:24px;padding:32px 0 22px}
  .subscribe input{width:100%}
  .subscribe{width:100%}
  .subscribe .btn{width:100%}
  .float-cta{left:0;right:0;bottom:0;border-radius:0;justify-content:center;padding:16px 18px calc(16px + env(safe-area-inset-bottom))}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category5 */
:root{
  --bg:#07061A;
  --bg-alt:#0C0B22;
  --surface:#12102E;
  --glass:rgba(255,255,255,.05);
  --glass-line:rgba(255,255,255,.10);
  --line:rgba(140,150,255,.16);
  --line-strong:rgba(140,150,255,.32);
  --primary:#3FD8FF;
  --primary-deep:#1B9FD8;
  --violet:#7C5CFF;
  --gold:#FFC46B;
  --text:#EAF0FF;
  --text-2:#A8B2D8;
  --text-3:#6E789E;
  --ok:#35E0A1;
  --warn:#FF6B8A;
  --grad:linear-gradient(135deg,#3FD8FF 0%,#7C5CFF 100%);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:22px;
  --r-pill:999px;
  --shadow:inset 0 1px 0 rgba(255,255,255,.06), 0 18px 48px -28px rgba(0,0,0,.85);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","MiSans","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:ui-monospace,"SF Mono","JetBrains Mono",var(--font-sans);
  --ease:cubic-bezier(.2,.7,.3,1);
  --bs-body-bg:#07061A;
  --bs-body-color:#EAF0FF;
  --bs-primary:#3FD8FF;
  --bs-border-color:rgba(140,150,255,.16);
  --bs-border-radius:16px;
  --bs-link-color:#A8B2D8;
  --bs-link-hover-color:#3FD8FF;
  --bs-font-sans-serif:var(--font-sans);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:132px}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(760px 420px at 8% 4%, rgba(63,216,255,.10), transparent 62%),
    radial-gradient(820px 460px at 92% 12%, rgba(124,92,255,.12), transparent 64%);
}
img{max-width:100%;display:block}
a{color:var(--text-2);text-decoration:none;transition:color 180ms var(--ease),border-color 180ms var(--ease),background 180ms var(--ease),transform 180ms var(--ease)}
a:hover{color:var(--primary)}
ul,ol{list-style:none;margin:0;padding:0}
h1,h2,h3,h4{font-weight:700;color:var(--text);margin:0}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
button,input,textarea{font-family:inherit;font-size:inherit;color:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
@media (min-width:1400px){.container{max-width:1280px}}
@media (max-width:767px){.container{padding-left:20px;padding-right:20px}}

/* ============ 通用按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 26px;
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  line-height:1.2;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  cursor:pointer;
  transition:transform 180ms var(--ease),box-shadow 180ms var(--ease),background 180ms var(--ease),border-color 180ms var(--ease),filter 180ms var(--ease),color 180ms var(--ease);
}
.btn-main{
  background:var(--grad);
  color:#fff;
  box-shadow:0 12px 34px -16px rgba(63,216,255,.85);
}
.btn-main:hover{color:#fff;filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 18px 44px -16px rgba(124,92,255,.9)}
.btn-main:active{transform:translateY(1px);filter:brightness(.97)}
.btn-ghost{
  background:transparent;
  border-color:var(--line-strong);
  color:var(--text);
}
.btn-ghost:hover{border-color:var(--primary);background:rgba(255,255,255,.08);color:#fff}
.btn-sm{padding:9px 20px;font-size:14px}
.btn-link-ghost{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-weight:600;font-size:15px;
  background:none;border:0;padding:0;cursor:pointer;
}
.btn-link-ghost:hover{color:#fff}
.btn-link-ghost svg{transition:transform 180ms var(--ease)}
.btn-link-ghost:hover svg{transform:translateX(4px)}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(7,6,26,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(140,150,255,.12);
  transition:background 220ms var(--ease),box-shadow 220ms var(--ease);
}
.site-header.is-compact{background:rgba(6,5,20,.94);box-shadow:0 18px 40px -30px rgba(0,0,0,.95)}
.nav-top{height:64px;transition:height 220ms var(--ease)}
.site-header.is-compact .nav-top{height:56px}
.nav-top-inner{display:flex;align-items:center;gap:20px;height:100%}

.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:34px;height:34px;flex:0 0 auto}
.brand-text{font-size:19px;font-weight:700;color:#fff;letter-spacing:.01em}
.brand-text em{
  font-style:normal;
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}

.nav-main{display:flex;align-items:center;gap:4px;margin:0 auto}
.nav-main a{
  font-size:15px;
  color:var(--text-2);
  padding:8px 13px;
  border-radius:var(--r-pill);
  white-space:nowrap;
}
.nav-main a:hover{color:var(--text);background:rgba(255,255,255,.06)}
.nav-main a.active{
  color:var(--primary);
  background:rgba(63,216,255,.10);
  box-shadow:inset 0 0 0 1px rgba(63,216,255,.35);
}

.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.search-wrap{position:relative;display:flex;align-items:center}
.search-toggle{
  width:38px;height:38px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  color:var(--text-2);
  cursor:pointer;
  transition:all 180ms var(--ease);
}
.search-toggle:hover{color:var(--primary);border-color:rgba(63,216,255,.5);background:rgba(63,216,255,.08)}
.search-box{
  width:0;opacity:0;overflow:hidden;
  transition:width 240ms var(--ease),opacity 200ms var(--ease),margin 240ms var(--ease);
}
.search-wrap.open .search-box{width:222px;opacity:1;margin-left:10px}
.search-box input{
  width:100%;
  background:#0C0B22;
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:10px 18px;
  font-size:14px;
  color:var(--text);
}
.search-box input::placeholder{color:var(--text-3)}
.search-box input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(63,216,255,.12)}

.nav-toggle{
  width:38px;height:38px;
  display:none;align-items:center;justify-content:center;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  color:var(--text);
  cursor:pointer;
}

/* 第二行频道 pill */
.nav-channels{
  border-top:1px solid rgba(140,150,255,.10);
  background:rgba(6,5,20,.62);
}
.channel-inner{
  display:flex;
  gap:8px;
  overflow-x:auto;
  padding-top:8px;
  padding-bottom:8px;
  scrollbar-width:none;
}
.channel-inner::-webkit-scrollbar{display:none}
.channel-pill{
  flex:0 0 auto;
  padding:7px 17px;
  font-size:14px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  color:var(--text-2);
  white-space:nowrap;
}
.channel-pill:hover{background:rgba(255,255,255,.08);color:var(--text)}
.channel-pill.active{
  color:var(--primary);
  border-color:rgba(63,216,255,.45);
  background:rgba(63,216,255,.08);
  box-shadow:inset 0 0 12px rgba(63,216,255,.14);
}

.nav-drawer{
  position:fixed;
  inset:0;
  z-index:1060;
  display:none;
  background:rgba(6,5,20,.97);
  backdrop-filter:blur(12px);
  padding:88px 24px 32px;
  overflow-y:auto;
}
.nav-drawer.open{display:block}
.nav-drawer a{
  display:block;
  padding:14px 4px;
  font-size:17px;
  color:var(--text);
  border-bottom:1px solid rgba(140,150,255,.12);
}
.nav-drawer a.active{color:var(--primary)}
.drawer-close{
  position:absolute;top:20px;right:22px;
  width:40px;height:40px;border-radius:50%;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  color:var(--text);cursor:pointer;font-size:20px;line-height:1;
}

/* ============ 面包屑 ============ */
.crumb{
  height:44px;
  display:flex;
  align-items:center;
  font-size:13px;
  color:var(--text-3);
  background:rgba(12,11,34,.6);
  border-bottom:1px solid rgba(140,150,255,.12);
}
.crumb .sep{margin:0 8px;color:var(--text-3)}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--primary)}
.crumb .current{color:var(--text-3)}

/* ============ 顶部导语带 ============ */
.page-band{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  background:
    radial-gradient(880px 380px at 10% -14%, rgba(63,216,255,.16), transparent 62%),
    radial-gradient(760px 420px at 90% 8%, rgba(124,92,255,.18), transparent 64%),
    var(--bg-alt);
}
.page-band::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    radial-gradient(1.6px 1.6px at 14% 26%, rgba(255,255,255,.55), transparent 60%),
    radial-gradient(1.4px 1.4px at 32% 62%, rgba(255,255,255,.4), transparent 60%),
    radial-gradient(1.8px 1.8px at 58% 22%, rgba(63,216,255,.6), transparent 60%),
    radial-gradient(1.4px 1.4px at 74% 70%, rgba(255,255,255,.42), transparent 60%),
    radial-gradient(1.6px 1.6px at 88% 34%, rgba(255,196,107,.55), transparent 60%);
  opacity:.75;
}
.page-band::after{
  content:"";
  position:absolute;
  inset:0;
  background:url(/assets/images/backpic/back-2.png) center/cover no-repeat;
  opacity:.2;
  mix-blend-mode:screen;
  pointer-events:none;
}
.page-band .container{position:relative;z-index:2;padding-top:clamp(48px,7vw,84px);padding-bottom:clamp(48px,7vw,84px)}
.band-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 16px;
  font-size:13px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.05);
  border:1px solid var(--glass-line);
  color:var(--primary);
}
.band-pill i{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary);display:inline-block}
.band-lead{
  margin:22px 0 0;
  max-width:840px;
  font-size:clamp(18px,1.75vw,22px);
  line-height:1.75;
  color:var(--text);
  font-weight:600;
}
.band-note{max-width:760px;margin-top:14px;color:var(--text-2);font-size:15px;line-height:1.85}
.band-stats{
  display:flex;flex-wrap:wrap;gap:28px;
  margin-top:30px;
  padding:20px 28px;
  border-radius:var(--r-lg);
  background:var(--glass);
  border:1px solid var(--glass-line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
}
.band-stats .stat b{
  display:block;
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:26px;
  font-weight:700;
  color:var(--primary);
  text-shadow:0 0 20px rgba(63,216,255,.45);
  line-height:1.2;
}
.band-stats .stat span{display:block;margin-top:6px;font-size:13px;color:var(--text-2)}

/* ============ 区块通用 ============ */
.section{padding-top:clamp(56px,8vw,112px);padding-bottom:clamp(56px,8vw,112px);position:relative;z-index:1}
.section-alt{background:var(--bg-alt)}
.sec-head{max-width:760px;margin-bottom:34px}
.sec-head h2{font-size:clamp(24px,2.6vw,38px);line-height:1.25}
.sec-head p{margin-top:14px;color:var(--text-2);font-size:16px}
.sec-eyebrow{
  display:block;
  font-size:13px;
  letter-spacing:.12em;
  color:var(--primary);
  margin-bottom:12px;
}

/* ============ 双栏问答 ============ */
.qa-grid{display:grid;grid-template-columns:5fr 7fr;gap:32px;align-items:start}
.qa-side{position:sticky;top:132px}
.qa-side h1{
  font-size:clamp(28px,3vw,40px);
  line-height:1.2;
  letter-spacing:-.02em;
  background:linear-gradient(120deg,#FFFFFF 6%,#BFE9FF 46%,#9E8CFF 96%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.qa-side .side-text{margin-top:18px;color:var(--text-2);font-size:16px;line-height:1.9}
.qa-side .side-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.side-figure{
  margin-top:26px;
  aspect-ratio:3/4;
  border-radius:var(--r-md);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  background:var(--surface);
  position:relative;
}
.side-figure img{width:100%;height:100%;object-fit:cover}
.side-figure figcaption{
  position:absolute;left:16px;right:16px;bottom:14px;
  font-size:13px;color:#EAF0FF;
  padding:8px 14px;
  border-radius:var(--r-pill);
  background:rgba(7,6,26,.62);
  border:1px solid var(--glass-line);
  backdrop-filter:blur(10px);
}

/* 手风琴 */
.faq-acc .accordion-item{
  position:relative;
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--r-md);
  margin-bottom:12px;
  overflow:hidden;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
  transition:border-color 200ms var(--ease),background 200ms var(--ease);
}
.faq-acc .accordion-item:hover{border-color:rgba(63,216,255,.34)}
.faq-acc .accordion-button{
  position:relative;
  width:100%;
  background:transparent;
  border:0;
  color:var(--text);
  font-size:16px;
  font-weight:600;
  line-height:1.6;
  text-align:left;
  padding:18px 54px 18px 22px;
  border-radius:var(--r-md);
  box-shadow:none;
  transition:background 200ms var(--ease),color 200ms var(--ease);
}
.faq-acc .accordion-button:not(.collapsed){
  color:#fff;
  background:rgba(63,216,255,.06);
  box-shadow:inset 3px 0 0 0 var(--primary);
}
.faq-acc .accordion-button:focus{outline:2px solid var(--primary);outline-offset:-2px;box-shadow:none}
.faq-acc .accordion-button::after{
  content:"+";
  margin:0;
  width:auto;height:auto;
  background-image:none !important;
  position:absolute;
  right:22px;
  top:50%;
  transform:translateY(-50%);
  font-size:22px;
  font-weight:400;
  line-height:1;
  color:var(--primary);
  transition:transform 220ms var(--ease),color 220ms var(--ease);
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:translateY(-50%) rotate(45deg);color:var(--gold)}
.faq-acc .accordion-body{
  padding:0 22px 20px;
  color:var(--text-2);
  font-size:15px;
  line-height:1.9;
}

/* 清单卡 */
.check-card{
  margin-top:22px;
  padding:26px 24px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--shadow);
}
.check-card h3{font-size:17px;margin-bottom:8px}
.check-card .check-intro{color:var(--text-3);font-size:14px;margin-bottom:14px}
.check-list li{
  display:flex;
  gap:12px;
  padding:11px 0;
  font-size:15px;
  color:var(--text-2);
  border-bottom:1px dashed rgba(140,150,255,.14);
}
.check-list li:last-child{border-bottom:0;padding-bottom:0}
.check-list svg{flex:0 0 auto;margin-top:5px;color:var(--primary)}

/* ============ 讨论分区 bento ============ */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:20px}
.bento-item{
  position:relative;
  display:flex;
  flex-direction:column;
  grid-column:span 4;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform 180ms var(--ease),border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.bento-item::before{
  content:"";
  position:absolute;top:0;left:0;right:0;height:1px;
  background:var(--grad);
  opacity:0;
  transition:opacity 200ms var(--ease);
  z-index:3;
}
.bento-item:hover{transform:translateY(-4px);border-color:rgba(63,216,255,.45)}
.bento-item:hover::before{opacity:1}
.bento-item.b-7{grid-column:span 7}
.bento-item.b-5{grid-column:span 5}
.bento-item.b-4{grid-column:span 4}
.tile-media{aspect-ratio:16/9;overflow:hidden;background:#0C0B22;position:relative}
.tile-media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.bento-item:hover .tile-media img{transform:scale(1.04)}
.tile-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.tile-tag{
  align-self:flex-start;
  padding:4px 12px;
  font-size:12px;
  border-radius:var(--r-pill);
  background:rgba(124,92,255,.16);
  border:1px solid rgba(124,92,255,.4);
  color:#CFC2FF;
}
.tile-body h3{font-size:17px}
.tile-body p{color:var(--text-2);font-size:14.5px;line-height:1.85}
.tile-body .tile-foot{
  margin-top:auto;
  padding-top:10px;
  font-size:13px;
  color:var(--text-3);
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
}

/* ============ 参与流程 ============ */
.steps{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.steps::before{
  content:"";
  position:absolute;
  top:26px;left:5%;right:5%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(124,92,255,.55),rgba(63,216,255,.55),transparent);
}
.step{position:relative;padding-top:2px}
.step-num{
  position:relative;
  z-index:2;
  width:52px;height:52px;
  display:grid;place-items:center;
  border-radius:50%;
  background:#12102E;
  border:1px solid rgba(63,216,255,.38);
  color:var(--primary);
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-weight:700;
  font-size:16px;
}
.step h3{margin-top:16px;font-size:16px}
.step p{margin-top:8px;color:var(--text-2);font-size:14.5px;line-height:1.85}

/* ============ 公约 ============ */
.rules-grid{display:grid;grid-template-columns:4fr 8fr;gap:32px;align-items:start}
.rules-grid .rules-intro p{color:var(--text-2);font-size:15.5px;line-height:1.9}
.rules-list{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.rule-card{
  padding:20px 22px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--shadow);
  transition:border-color 180ms var(--ease),transform 180ms var(--ease);
}
.rule-card:hover{border-color:rgba(63,216,255,.4);transform:translateY(-3px)}
.rule-card h3{font-size:16px;display:flex;align-items:center;gap:10px}
.rule-card h3 svg{color:var(--primary);flex:0 0 auto}
.rule-card p{margin-top:10px;color:var(--text-2);font-size:14.5px;line-height:1.85}
.rule-card.warn h3 svg{color:var(--warn)}

/* ============ 相关分类 + CTA ============ */
.related-pills{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px}
.related-pills a{
  padding:10px 22px;
  border-radius:var(--r-pill);
  border:1px solid rgba(140,150,255,.28);
  color:var(--text-2);
  font-size:14px;
  transition:all 180ms var(--ease);
}
.related-pills a:hover{
  color:var(--primary);
  border-color:rgba(63,216,255,.55);
  background:rgba(63,216,255,.08);
  transform:translateY(-2px);
}

.cta-band{
  position:relative;
  overflow:hidden;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  padding:clamp(28px,4vw,48px);
  border-radius:var(--r-lg);
  background:var(--glass);
  border:1px solid var(--glass-line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
}
.cta-band::before{
  content:"";
  position:absolute;inset:0;
  background:url(/assets/images/backpic/back-1.png) center/cover no-repeat;
  opacity:.16;
  pointer-events:none;
}
.cta-band::after{
  content:"";
  position:absolute;inset:0;
  background:radial-gradient(420px 220px at 12% 0%, rgba(63,216,255,.18), transparent 65%);
  pointer-events:none;
}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{font-size:clamp(22px,2.2vw,30px);line-height:1.3}
.cta-band p{margin-top:12px;color:var(--text-2);font-size:15px;max-width:600px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  z-index:1;
  margin-top:clamp(40px,6vw,80px);
  padding-top:56px;
  background:#050415;
  border-top:1px solid var(--line);
  font-size:14px;
}
.footer-bar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:24px 28px;
  margin-bottom:52px;
  border-radius:var(--r-lg);
  background:var(--glass);
  border:1px solid var(--glass-line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.footer-bar strong{display:block;font-size:16px;color:var(--text);font-weight:600}
.footer-bar span{display:block;margin-top:6px;color:var(--text-2);font-size:13.5px}
.subscribe{display:flex;gap:10px;flex:0 0 auto}
.subscribe input{
  min-width:236px;
  padding:12px 18px;
  border-radius:var(--r-pill);
  background:#0C0B22;
  border:1px solid var(--line);
  color:var(--text);
  font-size:14px;
}
.subscribe input::placeholder{color:var(--text-3)}
.subscribe input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(63,216,255,.12)}

.footer-cols{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.3fr;
  gap:32px;
  padding-bottom:44px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-cols p{color:var(--text-2);font-size:13.5px;line-height:1.9;max-width:340px}
.footer-cols h4{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--text)}
.footer-cols li{margin-bottom:10px}
.footer-cols li a{font-size:13.5px;color:var(--text-2)}
.footer-cols li a:hover{color:var(--primary);transform:translateX(2px);display:inline-block}
.footer-contact li{display:flex;gap:8px;font-size:13.5px;color:var(--text-2)}
.footer-contact li span{color:var(--text-3);flex:0 0 auto}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px;
  padding:20px 0 28px;
  border-top:1px solid var(--line);
  color:var(--text-3);
  font-size:13px;
}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;
  right:24px;
  bottom:28px;
  z-index:1040;
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:14px 24px;
  border-radius:var(--r-pill);
  background:var(--grad);
  color:#fff;
  font-size:15px;
  font-weight:600;
  box-shadow:0 18px 44px -16px rgba(63,216,255,.8);
  opacity:0;
  transform:translateY(14px);
  pointer-events:none;
  transition:opacity 240ms var(--ease),transform 240ms var(--ease);
}
.float-cta:hover{color:#fff;filter:brightness(1.07)}
.float-cta.show{opacity:1;transform:none;pointer-events:auto}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .nav-main a{padding:8px 10px;font-size:14px}
}
@media (max-width:991px){
  .nav-main{display:none}
  .nav-toggle{display:inline-flex}
  .search-wrap.open .search-box{width:170px}
  .qa-grid{grid-template-columns:1fr;gap:28px}
  .qa-side{position:static}
  .side-figure{aspect-ratio:16/9;max-width:560px}
  .bento-item,.bento-item.b-7,.bento-item.b-5,.bento-item.b-4{grid-column:span 6}
  .steps{grid-template-columns:1fr 1fr;gap:26px}
  .steps::before{display:none}
  .rules-grid{grid-template-columns:1fr;gap:26px}
  .footer-cols{grid-template-columns:1fr 1fr;gap:28px}
  .cta-band{flex-direction:column;align-items:flex-start}
}
@media (max-width:767px){
  .nav-top{height:58px}
  .brand-text{font-size:17px}
  .search-box{display:none}
  .bento-item,.bento-item.b-7,.bento-item.b-5,.bento-item.b-4{grid-column:span 12}
  .steps{grid-template-columns:1fr}
  .rules-list{grid-template-columns:1fr}
  .footer-bar{flex-direction:column;align-items:flex-start}
  .subscribe{width:100%;flex-wrap:wrap}
  .subscribe input{flex:1 1 160px;min-width:0}
  .footer-cols{grid-template-columns:1fr}
  .float-cta{
    left:0;right:0;bottom:0;
    border-radius:0;
    justify-content:space-between;
    padding:15px 20px calc(15px + env(safe-area-inset-bottom));
    transform:translateY(100%);
  }
  .float-cta.show{transform:none}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
}