/* roulang page: index */
:root{
  --bg-0:#0E0A1A;
  --bg-1:#16102B;
  --bg-2:#1C1436;
  --card-grad:linear-gradient(160deg,#241A45 0%,#1A1233 100%);
  --grad:linear-gradient(120deg,#FF4D2E 0%,#FF2E7E 48%,#7A4DFF 100%);
  --c-primary:#FF4D2E;
  --c-primary-d:#E0361A;
  --c-accent:#17E2B4;
  --c-violet:#7A4DFF;
  --t-1:#E8E4F5;
  --t-2:#A99FC7;
  --t-3:#7B7196;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.14);
  --r-lg:28px;
  --r-xl:24px;
  --r-md:20px;
  --r-sm:14px;
  --r-pill:999px;
  --sh-1:0 12px 32px rgba(0,0,0,.35);
  --sh-2:0 24px 60px rgba(0,0,0,.5);
  --tr:all .28s cubic-bezier(.22,.61,.36,1);
  --bs-body-bg:#0E0A1A;
  --bs-body-color:#E8E4F5;
  --bs-primary:#FF4D2E;
  --bs-primary-rgb:255,77,46;
  --bs-border-radius:18px;
  --bs-font-sans-serif:-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --bs-link-color:#17E2B4;
  --bs-link-hover-color:#7A4DFF;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t-1);
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.75;
  -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 12% -6%,rgba(255,77,46,.16),transparent 65%),
    radial-gradient(680px 420px at 92% 4%,rgba(122,77,255,.18),transparent 62%),
    radial-gradient(520px 340px at 50% 100%,rgba(23,226,180,.08),transparent 70%);
}
a{color:var(--c-accent);text-decoration:none;transition:var(--tr)}
a:hover{color:#fff}
img{max-width:100%;height:auto;display:block}
button,input{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.container{max-width:1200px;padding-left:24px;padding-right:24px;position:relative;z-index:1}
@media(min-width:1400px){.container{max-width:1320px}}
.section{padding:96px 0;position:relative;z-index:1}
.section--tight{padding:64px 0}
.section--alt{background:var(--bg-1)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:40px}
.section-head h2{font-size:clamp(24px,2.8vw,36px);line-height:1.28}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;
  color:var(--c-accent);margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--grad)}
.h-line{width:28px;height:4px;border-radius:2px;background:var(--grad);margin-bottom:18px}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{color:var(--t-2);font-size:16px;line-height:1.85}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(14,10,26,.78);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:var(--tr);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,rgba(23,226,180,.55),rgba(122,77,255,.28) 45%,rgba(255,255,255,0) 100%);
}
.site-header.is-scrolled{background:rgba(11,8,20,.94);box-shadow:0 12px 30px rgba(0,0,0,.45)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px;transition:var(--tr)}
.site-header.is-scrolled .nav-inner{height:60px}
.brand{display:flex;align-items:center;gap:12px;color:var(--t-1);flex-shrink:0}
.brand:hover{color:var(--t-1)}
.brand-mark{
  width:40px;height:40px;border-radius:14px;display:grid;place-items:center;
  background:var(--grad);color:#fff;font-weight:800;font-size:18px;
  box-shadow:0 8px 22px rgba(255,77,46,.32);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;font-weight:800;font-size:17px;letter-spacing:.01em}
.brand-text em{
  font-style:normal;font-size:11px;font-weight:600;letter-spacing:.22em;
  color:var(--c-accent);opacity:.9;
}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav .nav-link{
  position:relative;color:var(--t-2);font-size:15px;font-weight:500;
  padding:10px 14px;border-radius:var(--r-sm);transition:var(--tr);
}
.main-nav .nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;
  background:var(--c-accent);box-shadow:0 0 12px rgba(23,226,180,.75);
  opacity:0;transition:opacity .25s ease;
}
.main-nav .nav-link:hover{color:var(--t-1)}
.main-nav .nav-link:hover::after{opacity:.55}
.main-nav .nav-link.active{color:var(--c-accent)}
.main-nav .nav-link.active::after{opacity:1}
.nav-cta{display:inline-flex;align-items:center;gap:8px}
.nav-toggle{
  width:46px;height:46px;border-radius:var(--r-sm);border:1px solid var(--line-2);
  background:rgba(255,255,255,.04);color:var(--t-1);display:grid;place-items:center;font-size:18px;
  transition:var(--tr);
}
.nav-toggle:hover{border-color:var(--c-accent);color:var(--c-accent)}

/* ---------- 按钮 ---------- */
.btn-grad{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;min-height:46px;border:none;border-radius:var(--r-pill);
  background:var(--grad);color:#fff;font-weight:700;font-size:15px;
  box-shadow:0 10px 26px rgba(255,77,46,.3);
  transition:var(--tr);
}
.btn-grad:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 38px rgba(255,46,126,.42)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;min-height:46px;border-radius:var(--r-pill);
  background:transparent;border:1px solid rgba(23,226,180,.6);color:var(--c-accent);
  font-weight:600;font-size:15px;transition:var(--tr);
}
.btn-ghost:hover{background:rgba(23,226,180,.12);color:#fff;border-color:var(--c-accent);transform:translateY(-2px)}
.btn-sm-pill{padding:10px 20px;min-height:40px;font-size:14px}
.text-link{
  display:inline-flex;align-items:center;gap:8px;color:var(--c-accent);font-weight:600;font-size:15px;
}
.text-link i{transition:transform .28s cubic-bezier(.22,.61,.36,1)}
.text-link:hover i{transform:translateX(4px)}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  min-height:560px;display:flex;align-items:center;
  padding:88px 0 84px;
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  z-index:0;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(120deg,rgba(255,77,46,.62) 0%,rgba(255,46,126,.52) 46%,rgba(122,77,255,.66) 100%),
    linear-gradient(180deg,rgba(14,10,26,.55) 0%,rgba(14,10,26,.82) 62%,var(--bg-0) 100%);
}
.hero-inner{position:relative;z-index:2}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.1);border:1px solid rgba(23,226,180,.45);
  color:#fff;font-size:13px;font-weight:600;letter-spacing:.04em;
  backdrop-filter:blur(6px);margin-bottom:22px;
}
.hero-badge i{color:var(--c-accent)}
.hero-title{
  font-size:clamp(30px,4.2vw,54px);
  font-weight:800;line-height:1.18;letter-spacing:-.02em;
  color:#fff;text-shadow:0 4px 22px rgba(0,0,0,.5);
  margin-bottom:20px;
}
.hero-sub{
  color:rgba(255,255,255,.86);font-size:clamp(15px,1.4vw,17px);
  line-height:1.85;max-width:560px;margin-bottom:30px;
  text-shadow:0 2px 10px rgba(0,0,0,.45);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px}
.stat-pill{
  display:flex;flex-direction:column;gap:2px;
  padding:12px 20px;border-radius:var(--r-pill);
  background:rgba(20,14,38,.62);border:1px solid rgba(23,226,180,.32);
  backdrop-filter:blur(8px);min-width:132px;
}
.stat-num{
  font-size:26px;font-weight:800;line-height:1.1;font-variant-numeric:tabular-nums;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-label{font-size:12px;color:var(--t-2);letter-spacing:.03em}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-xl);
  border:1px solid rgba(23,226,180,.35);
  box-shadow:0 28px 70px rgba(0,0,0,.55),0 0 40px rgba(23,226,180,.14);
}
.hero-float{
  position:absolute;right:18px;bottom:-18px;
  background:rgba(18,12,34,.94);border:1px solid rgba(23,226,180,.5);
  border-radius:var(--r-md);padding:14px 22px;text-align:center;
  box-shadow:0 18px 40px rgba(0,0,0,.55);
}
.hero-float .stat-num{font-size:30px}
.hero-float .stat-label{font-size:12px;color:var(--t-2)}

/* ---------- 主张带 ---------- */
.claim-bar{
  background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:34px 0;position:relative;z-index:1;
}
.claim-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.claim-item{display:flex;align-items:center;gap:12px}
.claim-item::before{content:"";width:3px;height:32px;border-radius:2px;background:var(--grad);flex-shrink:0}
.claim-item span{font-size:15px;font-weight:600;color:var(--t-1);letter-spacing:.02em}

/* ---------- 故事区 ---------- */
.story-row{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.story-row + .story-row{margin-top:80px}
.story-row.reverse .story-media{order:2}
.story-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-xl);border:1px solid var(--line-2);
  box-shadow:var(--sh-1);
}
.story-body h2{font-size:clamp(23px,2.4vw,32px);line-height:1.3;margin-bottom:18px}
.story-body p + p{margin-top:16px}

/* ---------- 精选内容卡 ---------- */
.feat-card{
  position:relative;height:100%;overflow:hidden;
  border-radius:var(--r-xl);
  background:var(--card-grad);
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
  transition:var(--tr);
  display:flex;flex-direction:column;
}
.feat-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2),0 0 0 1px rgba(23,226,180,.2)}
.feat-thumb{overflow:hidden;border-radius:var(--r-xl) var(--r-xl) 0 0;position:relative}
.feat-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s ease}
.feat-card:hover .feat-thumb img{transform:scale(1.04)}
.feat-body{padding:24px 26px 26px;display:flex;flex-direction:column;gap:12px;flex:1}
.feat-body h3{font-size:20px;line-height:1.4}
.feat-card.feat-sm .feat-body h3{font-size:17px}
.feat-body p{color:var(--t-2);font-size:14.5px;line-height:1.8}
.feat-meta{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:14px;border-top:1px solid var(--line)}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  border:1px solid rgba(23,226,180,.45);color:var(--c-accent);
  font-size:12px;font-weight:600;letter-spacing:.02em;white-space:nowrap;
}
.feat-note{
  height:100%;display:flex;flex-direction:column;justify-content:center;gap:16px;
  padding:32px;border-radius:var(--r-xl);
  background:linear-gradient(140deg,rgba(255,77,46,.14),rgba(122,77,255,.12));
  border:1px solid var(--line-2);
}
.feat-note h3{font-size:20px}
.feat-note p{color:var(--t-2);font-size:14.5px}

/* ---------- 最新信息 ---------- */
.news-card{
  display:flex;gap:20px;height:100%;
  padding:18px;border-radius:var(--r-md);
  background:var(--card-grad);border:1px solid var(--line);
  box-shadow:var(--sh-1);transition:var(--tr);
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(23,226,180,.4);box-shadow:var(--sh-2)}
.news-thumb{flex:0 0 168px;border-radius:16px;overflow:hidden;position:relative;background:linear-gradient(140deg,rgba(255,77,46,.35),rgba(122,77,255,.35))}
.news-thumb img{width:100%;height:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s ease}
.news-card:hover .news-thumb img{transform:scale(1.05)}
.news-body{display:flex;flex-direction:column;gap:8px;min-width:0;flex:1}
.news-body h3{font-size:17px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body h3 a{color:var(--t-1)}
.news-body h3 a:hover{color:var(--c-accent)}
.news-body p{color:var(--t-2);font-size:14px;line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:10px;border-top:1px solid var(--line)}
.news-time{font-size:13px;color:var(--t-3);font-variant-numeric:tabular-nums}
.news-more{font-size:13px;font-weight:600;color:var(--c-accent);display:inline-flex;align-items:center;gap:6px}
.news-more:hover{color:#fff}
.empty-state{
  grid-column:1/-1;
  display:flex;flex-direction:column;align-items:center;gap:12px;
  padding:56px 24px;border-radius:var(--r-md);
  border:1px dashed rgba(255,255,255,.2);background:rgba(255,255,255,.02);text-align:center;
}
.empty-state i{font-size:30px;color:var(--c-accent);opacity:.8}
.empty-state p{color:var(--t-2);font-size:15px}

/* ---------- 信任背书 ---------- */
.trust-badges{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:44px}
.trust-badge{
  padding:26px 22px;border-radius:var(--r-md);
  background:rgba(255,255,255,.04);border:1px solid rgba(23,226,180,.28);
  text-align:center;transition:var(--tr);
}
.trust-badge:hover{border-color:var(--c-accent);transform:translateY(-4px)}
.trust-badge .stat-num{font-size:34px;display:block;margin-bottom:6px}
.trust-badge span:last-child{font-size:13px;color:var(--t-2);letter-spacing:.02em}
.trust-cards{display:grid;grid-template-columns:5fr 4fr 3fr;gap:22px}
.trust-card{
  padding:28px 24px;border-radius:var(--r-md);
  background:var(--card-grad);border:1px solid var(--line);transition:var(--tr);
}
.trust-card:hover{transform:translateY(-4px);border-color:rgba(23,226,180,.35)}
.trust-icon{
  width:48px;height:48px;border-radius:50%;display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(255,77,46,.28),rgba(122,77,255,.28));
  border:1px solid rgba(23,226,180,.3);color:var(--c-accent);font-size:19px;margin-bottom:16px;
}
.trust-card h3{font-size:16px;margin-bottom:8px}
.trust-card p{font-size:14px;color:var(--t-2);line-height:1.8}

/* ---------- FAQ ---------- */
.faq .accordion-item{
  background:var(--card-grad);border:1px solid var(--line);border-radius:16px;
  margin-bottom:12px;overflow:hidden;position:relative;transition:var(--tr);
}
.faq .accordion-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--grad);opacity:0;transition:opacity .28s ease;
}
.faq .accordion-item:has(.accordion-button:not(.collapsed))::before{opacity:1}
.faq .accordion-item:has(.accordion-button:not(.collapsed)){border-color:rgba(23,226,180,.3)}
.faq .accordion-button{
  background:transparent;color:var(--t-1);font-size:16px;font-weight:600;
  padding:20px 24px;box-shadow:none;display:flex;align-items:center;
}
.faq .accordion-button:not(.collapsed){color:#fff;background:rgba(255,255,255,.03);font-weight:700}
.faq .accordion-button:focus{box-shadow:none;outline:2px solid rgba(23,226,180,.45);outline-offset:-2px}
.faq .accordion-button::after{display:none}
.faq .accordion-button::before{
  content:"+";order:2;margin-left:auto;font-size:20px;font-weight:400;
  color:var(--c-accent);line-height:1;transition:transform .28s ease;
}
.faq .accordion-button:not(.collapsed)::before{content:"−";transform:rotate(180deg)}
.faq .accordion-body{padding:0 24px 22px 24px;color:var(--t-2);font-size:14.5px;line-height:1.85}

/* ---------- 订阅 CTA ---------- */
.cta-card{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);padding:52px 48px;
  background:linear-gradient(125deg,rgba(255,77,46,.28),rgba(255,46,126,.22) 48%,rgba(122,77,255,.3)),var(--bg-2);
  border:1px solid var(--line-2);
  box-shadow:var(--sh-2);
}
.cta-card::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(520px 260px at 88% 12%,rgba(23,226,180,.2),transparent 68%);
  pointer-events:none;
}
.cta-grid{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.cta-grid h2{font-size:clamp(23px,2.4vw,32px);margin-bottom:12px}
.cta-grid p{color:rgba(255,255,255,.82);font-size:15px}
.subscribe-form{display:flex;gap:12px;flex-wrap:wrap}
.subscribe-form input{
  flex:1 1 220px;min-width:0;height:48px;padding:0 22px;
  border-radius:var(--r-pill);border:1px solid var(--line-2);
  background:rgba(255,255,255,.06);color:var(--t-1);font-size:15px;transition:var(--tr);
}
.subscribe-form input::placeholder{color:var(--t-3)}
.subscribe-form input:focus{
  outline:none;border-color:var(--c-accent);
  box-shadow:0 0 0 1px rgba(23,226,180,.35),0 0 22px rgba(23,226,180,.25);
}
.subscribe-form .btn-grad{flex:0 0 auto;height:48px}
.sub-tip{margin-top:14px;font-size:13px;color:var(--c-accent);min-height:18px}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;z-index:1;background:#0B0814;border-top:1px solid var(--line);margin-top:0;
}
.footer-band{height:2px;background:var(--grad);width:100%}
.footer-main{padding:64px 0 40px;display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--t-2);line-height:1.85;max-width:280px}
.social-row{display:flex;gap:10px;margin-top:20px}
.social-row span{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  background:rgba(255,255,255,.05);border:1px solid var(--line-2);color:var(--t-2);
  font-size:15px;transition:var(--tr);
}
.social-row span:hover{border-color:var(--c-accent);color:var(--c-accent)}
.footer-col h4{font-size:14px;letter-spacing:.06em;color:#fff;margin-bottom:18px}
.footer-col li + li{margin-top:11px}
.footer-col a{font-size:14px;color:var(--t-3);display:inline-block;transition:var(--tr)}
.footer-col a:hover{color:#fff;transform:translateX(2px)}
.footer-contact p{font-size:14px;color:var(--t-3);line-height:1.9}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
}
.footer-bottom p{font-size:12.5px;color:var(--t-3)}
.footer-bottom a{color:var(--t-3);font-size:12.5px}
.footer-bottom a:hover{color:var(--c-accent)}

/* ---------- 返回顶部 ---------- */
#backTop{
  position:fixed;right:26px;bottom:26px;width:48px;height:48px;z-index:1040;
  border-radius:50%;border:1px solid rgba(23,226,180,.5);
  background:rgba(18,12,34,.9);color:var(--c-accent);
  display:grid;place-items:center;font-size:17px;cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:var(--tr);
}
#backTop.show{opacity:1;visibility:visible;transform:translateY(0)}
#backTop:hover{background:var(--grad);color:#fff;border-color:transparent}

/* ---------- 移动抽屉 ---------- */
.site-drawer{background:#120C22;color:var(--t-1);border-left:1px solid var(--line-2);width:300px}
.site-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 22px}
.site-drawer .btn-close{filter:invert(1) grayscale(1);opacity:.7}
.drawer-nav{padding:14px 0}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  height:48px;padding:0 22px;color:var(--t-2);font-size:15px;font-weight:500;
  border-left:3px solid transparent;transition:var(--tr);
}
.drawer-nav a:hover{background:rgba(255,255,255,.04);color:#fff}
.drawer-nav a.active{color:var(--c-accent);border-left-color:var(--c-accent);background:rgba(23,226,180,.07)}
.drawer-cta{padding:18px 22px;border-top:1px solid var(--line)}
.drawer-cta .btn-grad{width:100%}

/* ---------- 响应式 ---------- */
@media(max-width:1199px){
  .story-row{gap:44px}
  .trust-cards{grid-template-columns:1fr 1fr}
}
@media(max-width:991px){
  .section{padding:72px 0}
  .hero{padding:64px 0 60px;min-height:auto}
  .hero-visual{margin-top:44px}
  .claim-grid{grid-template-columns:repeat(2,1fr)}
  .story-row{grid-template-columns:1fr;gap:28px}
  .story-row.reverse .story-media{order:0}
  .story-row + .story-row{margin-top:56px}
  .cta-card{padding:40px 28px}
  .cta-grid{grid-template-columns:1fr;gap:26px}
  .footer-main{grid-template-columns:1fr 1fr;gap:32px}
  .trust-badges{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:767px){
  .container{padding-left:16px;padding-right:16px}
  .section{padding:56px 0}
  .hero-title{font-size:30px}
  .hero-stats{gap:10px}
  .stat-pill{min-width:calc(50% - 6px);padding:12px 16px}
  .news-card{flex-direction:column}
  .news-thumb{flex:0 0 auto;width:100%}
  .news-thumb img{aspect-ratio:16/9}
  .trust-cards{grid-template-columns:1fr}
  .feat-note{padding:26px}
  .btn-grad,.btn-ghost{width:100%;justify-content:center}
  .hero-actions{flex-direction:column;align-items:stretch}
  .subscribe-form .btn-grad{width:100%}
  .footer-main{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  #backTop{right:16px;bottom:16px}
}
@media(max-width:519px){
  .claim-grid{grid-template-columns:1fr}
  .trust-badges{grid-template-columns:1fr}
  .hero-float{right:10px;bottom:-14px;padding:12px 18px}
  .stat-num{font-size:24px}
}

/* roulang page: article */
:root{
  --bg-0:#0E0A1A;
  --bg-1:#16102B;
  --bg-2:#1C1436;
  --c-primary:#FF4D2E;
  --c-primary-dark:#E0361A;
  --c-accent:#17E2B4;
  --c-violet:#7A4DFF;
  --t-1:#E8E4F5;
  --t-2:#A99FC7;
  --t-3:#7B7196;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --grad-brand:linear-gradient(120deg,#FF4D2E 0%,#FF2E7E 48%,#7A4DFF 100%);
  --grad-soft:linear-gradient(160deg,#241A45 0%,#1A1233 100%);
  --radius-lg:24px;
  --radius-md:20px;
  --radius-sm:14px;
  --radius-xs:12px;
  --shadow-card:0 12px 32px rgba(0,0,0,.35);
  --shadow-hover:0 24px 60px rgba(0,0,0,.5);
  --shadow-neon:0 0 0 1px rgba(23,226,180,.18),0 0 24px rgba(23,226,180,.15);
  --ease:all .28s cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t-1);
  font-family:-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:var(--ease)}
a:hover{color:var(--t-1)}
button{font-family:inherit}
::selection{background:rgba(23,226,180,.28);color:#fff}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.container{max-width:1320px}}
@media (max-width:767px){.container{padding:0 16px}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(14,10,26,.74);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  transition:var(--ease);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,rgba(23,226,180,.85),rgba(122,77,255,.35) 45%,rgba(23,226,180,0));
  pointer-events:none;
}
.site-header.scrolled{background:rgba(9,6,18,.94);box-shadow:0 10px 30px rgba(0,0,0,.5)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:72px;transition:var(--ease)}
.site-header.scrolled .header-inner{min-height:60px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  font-weight:800;font-size:18px;color:#fff;background:var(--grad-brand);
  box-shadow:0 0 0 1px rgba(23,226,180,.22),0 8px 22px rgba(122,77,255,.35);
}
.brand-text{
  font-size:18px;font-weight:800;letter-spacing:.01em;
  background:var(--grad-brand);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
}
.brand-text em{
  font-style:normal;font-size:14px;font-weight:600;margin-left:6px;
  -webkit-text-fill-color:var(--t-2);
}
.main-nav{gap:4px;align-items:center}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:10px 14px;border-radius:999px;
  color:var(--t-2);font-size:15px;font-weight:600;line-height:1.4;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--c-accent),var(--c-violet));
  opacity:0;transition:opacity .25s ease;
  box-shadow:0 0 12px rgba(23,226,180,.6);
}
.nav-link:hover{color:var(--t-1)}
.nav-link:hover::after{opacity:.55}
.nav-link.active{color:var(--c-accent)}
.nav-link.active::after{opacity:1}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);color:var(--t-1);font-size:17px;
  display:inline-flex;align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:rgba(23,226,180,.5);color:var(--c-accent)}
.mobile-nav{
  border-top:1px solid var(--line);
  background:rgba(11,7,22,.98);
  padding:12px 0 0;
}
.mobile-nav .nav-link{
  display:flex;justify-content:space-between;align-items:center;
  min-height:48px;border-radius:12px;padding:0 16px;margin-bottom:6px;
  color:var(--t-2);
}
.mobile-nav .nav-link::after{display:none}
.mobile-nav .nav-link.active{
  color:var(--c-accent);
  border-left:3px solid transparent;
  border-image:var(--grad-brand) 1;
  background:rgba(255,255,255,.04);
}
.mobile-nav .nav-link i{font-size:12px;color:var(--t-3)}
.mobile-cta-wrap{padding:12px 16px 20px}
.mobile-cta-wrap .btn-brand{width:100%;justify-content:center}

/* ============ 按钮 ============ */
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 26px;border:0;border-radius:999px;
  background:var(--grad-brand);color:#fff;font-weight:700;font-size:15px;
  box-shadow:0 10px 26px rgba(255,46,126,.28);transition:var(--ease);
}
.btn-brand:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 36px rgba(122,77,255,.42)}
.btn-brand:active{transform:translateY(0)}
.btn-outline-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 24px;border-radius:999px;
  border:1px solid rgba(23,226,180,.55);background:transparent;
  color:var(--c-accent);font-weight:600;font-size:15px;transition:var(--ease);
}
.btn-outline-brand:hover{background:rgba(23,226,180,.12);color:var(--c-accent);border-color:var(--c-accent)}
.btn-brand:focus-visible,.btn-outline-brand:focus-visible,.nav-toggle:focus-visible,.nav-link:focus-visible{
  outline:2px solid rgba(23,226,180,.75);outline-offset:2px;
}

/* ============ 文章顶部横幅 ============ */
.article-banner{
  position:relative;
  min-height:260px;
  display:flex;align-items:flex-end;
  padding:40px 0 34px;
  background-image:
    linear-gradient(120deg,rgba(255,77,46,.45) 0%,rgba(122,77,255,.62) 100%),
    url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.article-banner::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:110px;
  background:linear-gradient(to bottom,rgba(14,10,26,0),var(--bg-0));
  pointer-events:none;
}
.article-banner .container{position:relative;z-index:2}
.breadcrumb-line{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:rgba(232,228,245,.72);margin-bottom:14px;
}
.breadcrumb-line a{color:rgba(232,228,245,.72)}
.breadcrumb-line a:hover{color:var(--c-accent)}
.breadcrumb-line .sep{color:var(--t-3)}
.breadcrumb-line .current{color:var(--t-1);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px}
.tag-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;font-size:12px;font-weight:600;
  color:var(--c-accent);border:1px solid rgba(23,226,180,.5);
  background:rgba(14,10,26,.55);
}
.tag-pill.neutral{color:var(--t-2);border-color:var(--line-strong)}

/* ============ 文章主体 ============ */
.article-main{padding:56px 0 88px}
.article-shell{max-width:820px;margin:0 auto}
.article-head h1{
  font-size:clamp(28px,3.6vw,44px);
  font-weight:800;line-height:1.24;letter-spacing:-.02em;
  margin:0 0 18px;
  word-break:break-word;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
  font-size:13px;color:var(--t-3);font-variant-numeric:tabular-nums;
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px}
.article-meta i{color:var(--c-accent);font-size:12px}
.divider-line{height:1px;background:var(--line);border:0;margin:26px 0 34px}

.article-body{
  font-size:17px;line-height:1.9;color:var(--t-1);
  word-break:break-word;overflow-wrap:break-word;
}
.article-body p{margin:0 0 1.1em}
.article-body h2{
  position:relative;font-size:24px;font-weight:700;line-height:1.35;
  margin:40px 0 16px;padding-top:6px;
}
.article-body h2::before{
  content:"";display:block;width:24px;height:4px;border-radius:2px;
  background:var(--grad-brand);margin-bottom:14px;
}
.article-body h3{font-size:20px;font-weight:700;line-height:1.4;margin:32px 0 12px}
.article-body h4{font-size:18px;font-weight:700;margin:26px 0 10px;color:var(--t-1)}
.article-body a{color:var(--c-accent);border-bottom:1px solid rgba(23,226,180,.35)}
.article-body a:hover{border-bottom-color:var(--c-accent)}
.article-body strong{color:#fff}
.article-body img{border-radius:16px;margin:22px auto;width:100%;height:auto}
.article-body figure{margin:24px 0}
.article-body figcaption,
.article-body .caption{font-size:13px;color:var(--t-3);text-align:center;margin-top:10px}
.article-body blockquote{
  position:relative;margin:26px 0;padding:18px 22px 18px 24px;
  background:rgba(255,255,255,.04);border-radius:var(--radius-xs);
  color:var(--t-2);font-size:16px;
}
.article-body blockquote::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;
  background:var(--grad-brand);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body ul,.article-body ol{margin:0 0 1.1em;padding-left:1.4em}
.article-body ul{list-style:none;padding-left:1.2em}
.article-body ul li{position:relative;margin-bottom:.5em}
.article-body ul li::before{
  content:"";position:absolute;left:-1.1em;top:.72em;
  width:7px;height:7px;border-radius:50%;background:var(--c-accent);
  box-shadow:0 0 10px rgba(23,226,180,.6);
}
.article-body ol li{margin-bottom:.5em}
.article-body ol li::marker{color:var(--c-accent);font-weight:700}
.article-body table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;
  border-radius:12px;overflow:hidden;background:var(--bg-2);
}
.article-body thead th{
  background:rgba(255,255,255,.06);color:var(--c-accent);
  font-weight:700;text-align:left;
}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line)}
.article-body tbody tr:last-child td{border-bottom:0}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.article-body pre{
  background:#100B20;border:1px solid var(--line);border-radius:12px;
  padding:16px;overflow-x:auto;font-size:14px;line-height:1.7;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:#D8D2F0;
}
.article-body code{
  background:rgba(23,226,180,.1);color:var(--c-accent);
  padding:2px 6px;border-radius:6px;font-size:.92em;
}
.article-body pre code{background:none;color:inherit;padding:0}
.article-body hr{border:0;height:1px;background:var(--line);margin:34px 0}

/* 空态 */
.article-empty{
  text-align:center;padding:56px 24px;border:1px dashed var(--line-strong);
  border-radius:var(--radius-md);background:rgba(255,255,255,.02);
}
.article-empty i{font-size:34px;color:var(--t-3);margin-bottom:16px;display:block}
.article-empty h2{font-size:22px;font-weight:700;margin:0 0 10px}
.article-empty p{color:var(--t-2);margin:0 0 22px;font-size:15px}

/* 标签组 */
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:44px}

/* ============ 相关推荐 ============ */
.related-section{padding:0 0 88px}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:28px;flex-wrap:wrap;
}
.section-head h2{
  position:relative;font-size:clamp(22px,2.6vw,30px);font-weight:700;
  margin:0;line-height:1.3;
}
.section-head h2::before{
  content:"";display:block;width:28px;height:4px;border-radius:2px;
  background:var(--grad-brand);margin-bottom:14px;
}
.text-link{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--c-accent);font-size:14px;font-weight:600;
}
.text-link i{transition:transform .28s ease}
.text-link:hover i{transform:translateX(4px)}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.content-card{
  display:flex;flex-direction:column;
  border-radius:var(--radius-md);overflow:hidden;
  background:var(--grad-soft);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  transition:var(--ease);
}
.content-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover),var(--shadow-neon);
  border-color:rgba(23,226,180,.35);
}
.card-media{position:relative;overflow:hidden;aspect-ratio:16/10;background:var(--bg-2)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.content-card:hover .card-media img{transform:scale(1.04)}
.card-media .placeholder{
  width:100%;height:100%;display:grid;place-items:center;
  background:linear-gradient(140deg,#2A1D52,#171029);color:var(--t-3);font-size:22px;
}
.card-body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1}
.card-body h3{
  font-size:18px;font-weight:700;line-height:1.4;margin:0 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-body p{
  font-size:14px;color:var(--t-2);line-height:1.7;margin:0 0 16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:12px;color:var(--t-3);font-variant-numeric:tabular-nums;
}
.mini-pill{
  display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;
  font-size:12px;color:var(--c-accent);border:1px solid rgba(23,226,180,.45);
}
.card-meta .read{color:var(--t-2);display:inline-flex;align-items:center;gap:6px}
.content-card:hover .card-meta .read{color:var(--c-accent)}

/* ============ 订阅 CTA ============ */
.cta-wrap{padding:0 0 96px}
.cta-card{
  position:relative;border-radius:28px;overflow:hidden;
  background:linear-gradient(120deg,rgba(255,77,46,.9),rgba(255,46,126,.86) 48%,rgba(122,77,255,.92));
  box-shadow:0 24px 60px rgba(0,0,0,.45);
}
.cta-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,10,26,.35),rgba(14,10,26,.62));
  pointer-events:none;
}
.cta-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.05fr 1fr;gap:32px;align-items:center;
  padding:44px 44px;
}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;margin:0 0 12px;line-height:1.32}
.cta-inner p{margin:0;color:rgba(255,255,255,.86);font-size:15px}
.cta-form{display:flex;gap:12px}
.cta-form input{
  flex:1;min-height:48px;padding:14px 20px;border-radius:999px;
  background:rgba(14,10,26,.4);border:1px solid rgba(255,255,255,.28);
  color:#fff;font-size:15px;transition:var(--ease);
}
.cta-form input::placeholder{color:rgba(255,255,255,.62)}
.cta-form input:focus{
  outline:none;border-color:var(--c-accent);
  box-shadow:0 0 0 3px rgba(23,226,180,.22);
}
.cta-form button{
  min-height:48px;padding:0 28px;border:0;border-radius:999px;
  background:#0E0A1A;color:#fff;font-weight:700;font-size:15px;
  transition:var(--ease);white-space:nowrap;
}
.cta-form button:hover{background:#1C1436;transform:translateY(-2px)}

/* ============ 页脚 ============ */
.site-footer{position:relative;background:var(--bg-1);border-top:1px solid var(--line)}
.footer-band{height:2px;background:var(--grad-brand)}
.footer-main{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;
  padding:56px 0 40px;
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--t-3);line-height:1.8;margin:0 0 18px;max-width:34ch}
.social-row{display:flex;gap:10px}
.social-row span{
  width:38px;height:38px;border-radius:50%;
  display:grid;place-items:center;font-size:14px;
  color:var(--t-2);border:1px solid var(--line-strong);background:rgba(255,255,255,.03);
  transition:var(--ease);
}
.social-row span:hover{color:var(--c-accent);border-color:rgba(23,226,180,.55)}
.footer-col h4{font-size:15px;font-weight:700;margin:0 0 16px;color:var(--t-1)}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--t-3);display:inline-block}
.footer-col a:hover{color:#fff;transform:translateX(2px)}
.footer-contact p{font-size:14px;color:var(--t-3);line-height:1.8;margin:0 0 12px}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);padding:20px 0 26px;
  font-size:12.5px;color:var(--t-3);
}
.footer-bottom p{margin:0}
.footer-bottom a{color:var(--t-3)}
.footer-bottom a:hover{color:var(--c-accent)}

/* 返回顶部 */
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:1040;
  width:46px;height:46px;border-radius:50%;
  display:grid;place-items:center;cursor:pointer;
  background:rgba(14,10,26,.9);color:var(--c-accent);
  border:1px solid rgba(23,226,180,.55);
  box-shadow:0 10px 28px rgba(0,0,0,.45);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:var(--ease);
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:rgba(23,226,180,.16)}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .footer-main{grid-template-columns:1.3fr 1fr 1fr;gap:28px}
  .footer-contact{grid-column:1 / -1}
}
@media (max-width:991px){
  .article-banner{min-height:220px;padding:30px 0 26px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .cta-inner{grid-template-columns:1fr;padding:36px 30px}
  .article-main{padding:44px 0 72px}
}
@media (max-width:767px){
  .footer-main{grid-template-columns:1fr 1fr;gap:26px;padding:44px 0 32px}
  .footer-brand{grid-column:1 / -1}
  .footer-brand p{max-width:none}
  .card-grid{grid-template-columns:1fr;gap:18px}
  .article-body{font-size:16px;line-height:1.85}
  .article-body h2{font-size:21px;margin-top:32px}
  .article-body h3{font-size:18px}
  .cta-form{flex-direction:column}
  .cta-form button{width:100%}
  .banner-tags{overflow-x:auto;flex-wrap:nowrap;padding-bottom:4px;scrollbar-width:none}
  .banner-tags::-webkit-scrollbar{display:none}
  .tag-pill{white-space:nowrap}
  .breadcrumb-line .current{max-width:32ch}
  .related-section{padding-bottom:64px}
  .cta-wrap{padding-bottom:72px}
}
@media (max-width:575px){
  .brand-text{font-size:16px}
  .brand-text em{font-size:12px}
  .article-head h1{font-size:26px}
  .footer-main{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .to-top{right:14px;bottom:18px;width:42px;height:42px}
}

/* roulang page: category1 */
:root{
  --bg-0:#0E0A1A;
  --bg-1:#16102B;
  --bg-2:#1C1436;
  --c-primary:#FF4D2E;
  --c-primary-dark:#E0361A;
  --c-accent:#17E2B4;
  --c-violet:#7A4DFF;
  --t-1:#E8E4F5;
  --t-2:#A99FC7;
  --t-3:#7B7196;
  --line:rgba(255,255,255,.08);
  --grad:linear-gradient(120deg,#FF4D2E 0%,#FF2E7E 48%,#7A4DFF 100%);
  --card-grad:linear-gradient(150deg,#241A45 0%,#1A1233 100%);
  --r-xl:28px;
  --r-lg:24px;
  --r-md:20px;
  --r-sm:12px;
  --sh-1:0 12px 32px rgba(0,0,0,.35);
  --sh-2:0 24px 60px rgba(0,0,0,.5);
  --ease:cubic-bezier(.22,.61,.36,1);
  --bs-body-bg:#0E0A1A;
  --bs-body-color:#E8E4F5;
  --bs-border-radius:14px;
  --bs-font-sans-serif:-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --bs-link-color:#17E2B4;
  --bs-link-hover-color:#E8E4F5;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-top:72px;
  background:var(--bg-0);
  color:var(--t-1);
  font-family:-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .25s var(--ease),transform .25s var(--ease)}
a:hover{color:var(--c-accent)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button,input{font:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:3px;border-radius:6px}
::selection{background:rgba(23,226,180,.28);color:#fff}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
@media (min-width:1400px){.container{max-width:1320px}}

/* ============ header ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1030;
  height:72px;
  display:flex;
  align-items:center;
  background:rgba(14,10,26,.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  transition:height .28s var(--ease),background .28s var(--ease),box-shadow .28s var(--ease);
}
.site-header::after{
  content:"";
  position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,var(--c-accent) 0%,rgba(23,226,180,.35) 32%,rgba(23,226,180,0) 82%);
  opacity:.6;
}
.site-header.is-scrolled{
  height:60px;
  background:rgba(10,7,20,.95);
  box-shadow:0 10px 30px rgba(0,0,0,.45);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  width:100%;
}
.brand{display:inline-flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;
  border-radius:12px;
  display:grid;place-items:center;
  background:var(--grad);
  color:#fff;
  font-weight:800;
  font-size:19px;
  line-height:1;
  box-shadow:0 0 0 1px rgba(255,255,255,.14),0 8px 20px rgba(255,46,126,.3);
}
.brand-text{
  display:flex;flex-direction:column;gap:2px;
  font-size:18px;font-weight:800;letter-spacing:.01em;line-height:1.1;color:#fff;
}
.brand-text em{
  font-style:normal;
  font-size:11px;
  font-weight:600;
  letter-spacing:.18em;
  color:var(--c-accent);
  opacity:.92;
}
.main-nav{display:flex;align-items:center;gap:4px}
.main-nav .nav-link{
  position:relative;
  padding:10px 16px;
  font-size:15px;
  font-weight:600;
  color:var(--t-2);
  border-radius:999px;
  transition:color .25s var(--ease);
}
.main-nav .nav-link::after{
  content:"";
  position:absolute;
  left:16px;right:16px;bottom:4px;
  height:2px;border-radius:2px;
  background:var(--c-accent);
  box-shadow:0 0 10px rgba(23,226,180,.9);
  opacity:0;
  transform:scaleX(.4);
  transform-origin:left center;
  transition:opacity .25s var(--ease),transform .25s var(--ease);
}
.main-nav .nav-link:hover{color:#fff}
.main-nav .nav-link:hover::after{opacity:.5;transform:scaleX(1)}
.main-nav .nav-link.active{color:var(--c-accent)}
.main-nav .nav-link.active::after{opacity:1;transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px}

.btn-grad{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 26px;
  border:0;border-radius:999px;
  background:var(--grad);
  color:#fff;font-size:15px;font-weight:700;letter-spacing:.02em;
  box-shadow:0 10px 26px rgba(255,46,126,.28);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease);
}
.btn-grad:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 36px rgba(255,46,126,.44)}
.btn-grad:active{transform:translateY(0)}
.btn-grad.sm{min-height:42px;padding:0 20px;font-size:14px}

.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 26px;
  border:1px solid rgba(23,226,180,.55);
  border-radius:999px;
  background:transparent;
  color:var(--c-accent);
  font-size:15px;font-weight:700;letter-spacing:.02em;
  transition:background .28s var(--ease),transform .28s var(--ease),border-color .28s var(--ease);
}
.btn-ghost:hover{background:rgba(23,226,180,.12);color:var(--c-accent);transform:translateY(-2px)}
.btn-ghost.on-dark{border-color:rgba(255,255,255,.7);color:#fff}
.btn-ghost.on-dark:hover{background:rgba(255,255,255,.16);color:#fff}

.nav-toggle{
  width:44px;height:44px;
  display:grid;place-items:center;
  border:1px solid var(--line);
  border-radius:12px;
  background:rgba(255,255,255,.04);
  color:var(--t-1);
  transition:border-color .28s var(--ease),color .28s var(--ease);
}
.nav-toggle:hover{border-color:rgba(23,226,180,.5);color:var(--c-accent)}

.mobile-panel{
  position:fixed;
  top:0;left:0;right:0;bottom:0;
  z-index:1029;
  padding:84px 16px 24px;
  background:rgba(11,8,22,.97);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  display:flex;flex-direction:column;
  opacity:0;visibility:hidden;
  transform:translateY(-12px);
  transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s var(--ease);
  overflow-y:auto;
}
.mobile-panel.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.mobile-panel a.m-nav-link{
  position:relative;
  display:flex;align-items:center;justify-content:space-between;
  height:48px;padding:0 16px 0 20px;
  border-radius:12px;
  color:var(--t-1);
  font-size:16px;font-weight:600;
}
.mobile-panel a.m-nav-link::after{
  content:"\f105";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  color:var(--t-3);
  font-size:14px;
}
.mobile-panel a.m-nav-link.active{color:var(--c-accent);background:linear-gradient(90deg,rgba(255,77,46,.16),rgba(255,77,46,0))}
.mobile-panel a.m-nav-link.active::before{
  content:"";
  position:absolute;left:0;top:8px;bottom:8px;width:3px;border-radius:3px;
  background:var(--grad);
}
.mobile-panel .m-cta{margin-top:auto;padding-top:24px}
.mobile-panel .m-cta .btn-grad{width:100%}

/* ============ page hero ============ */
.page-hero{padding:34px 0 0}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--t-3);
  margin-bottom:16px;
}
.crumb a{color:var(--t-3)}
.crumb a:hover{color:var(--c-accent)}
.crumb .sep{color:rgba(255,255,255,.22)}
.crumb .current{color:var(--t-2);font-weight:600}

.page-banner{
  position:relative;
  border-radius:var(--r-xl);
  overflow:hidden;
  min-height:280px;
  padding:40px;
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
  background-image:
    linear-gradient(120deg,rgba(255,77,46,.72) 0%,rgba(255,46,126,.6) 46%,rgba(122,77,255,.74) 100%),
    url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
}
.page-banner::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,10,26,.18) 0%,rgba(14,10,26,.62) 100%);
  pointer-events:none;
}
.banner-copy{position:relative;z-index:1;max-width:660px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;
  margin-bottom:18px;
  border-radius:999px;
  background:rgba(14,10,26,.55);
  border:1px solid rgba(23,226,180,.5);
  color:var(--c-accent);
  font-size:13px;font-weight:700;letter-spacing:.06em;
}
.banner-copy h1{
  font-size:clamp(30px,4.2vw,50px);
  font-weight:800;
  line-height:1.18;
  letter-spacing:-.02em;
  color:#fff;
  margin-bottom:14px;
  text-shadow:0 6px 26px rgba(0,0,0,.5);
}
.banner-copy p{
  font-size:16px;
  color:rgba(255,255,255,.92);
  max-width:540px;
  text-shadow:0 2px 12px rgba(0,0,0,.4);
}
.banner-badges{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap}
.stat-badge{
  min-width:120px;
  padding:16px 20px;
  border-radius:18px;
  background:rgba(14,10,26,.62);
  border:1px solid rgba(23,226,180,.38);
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
  display:flex;flex-direction:column;gap:6px;
}
.stat-badge .num{
  font-size:30px;font-weight:800;line-height:1;
  font-variant-numeric:tabular-nums;
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  -webkit-text-fill-color:transparent;
}
.stat-badge .lbl{font-size:12.5px;font-weight:600;color:var(--t-2)}

/* ============ sections ============ */
.section{padding:88px 0}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{margin-bottom:36px}
.section-head h2{
  position:relative;
  padding-top:20px;
  font-size:clamp(24px,2.8vw,34px);
  font-weight:800;
  line-height:1.3;
  letter-spacing:-.01em;
  margin-bottom:12px;
}
.section-head h2::before{
  content:"";
  position:absolute;top:0;left:0;
  width:28px;height:4px;border-radius:2px;
  background:var(--grad);
}
.section-head p{color:var(--t-2);font-size:15.5px;max-width:760px}

/* ============ side column ============ */
.side-card{
  background:var(--card-grad);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:22px;
  margin-bottom:20px;
  box-shadow:var(--sh-1);
  transition:border-color .28s var(--ease),transform .28s var(--ease);
}
.side-card:hover{border-color:rgba(23,226,180,.24)}
.side-card h3{
  display:flex;align-items:center;gap:10px;
  font-size:16.5px;font-weight:700;
  margin-bottom:14px;
}
.side-card h3::before{
  content:"";
  width:14px;height:3px;border-radius:3px;
  background:var(--grad);
  flex-shrink:0;
}
.side-card p{font-size:14.5px;color:var(--t-2);margin-bottom:14px}
.anchor-list{display:flex;flex-direction:column;gap:4px}
.anchor-list a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:44px;
  padding:0 14px;
  border-radius:var(--r-sm);
  color:var(--t-2);
  font-size:15px;font-weight:600;
  transition:background .25s var(--ease),color .25s var(--ease),transform .25s var(--ease);
}
.anchor-list a::after{
  content:"\f061";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  font-size:11px;
  color:var(--t-3);
}
.anchor-list a:hover{background:rgba(255,255,255,.05);color:var(--c-accent);transform:translateX(3px)}
.anchor-list a:hover::after{color:var(--c-accent)}

.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;
  padding:7px 14px;
  border-radius:999px;
  border:1px solid rgba(23,226,180,.35);
  background:rgba(23,226,180,.06);
  color:var(--c-accent);
  font-size:13px;font-weight:600;
  transition:all .25s var(--ease);
}
.tag:hover{background:rgba(23,226,180,.16);transform:translateY(-2px)}
.tag.neutral{border-color:var(--line);background:rgba(255,255,255,.03);color:var(--t-2)}
.tag.neutral:hover{border-color:rgba(23,226,180,.4);color:var(--c-accent)}

.mini-form{display:flex;flex-direction:column;gap:10px}
.mini-form input[type="email"]{
  width:100%;
  height:48px;
  padding:0 20px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.05);
  color:var(--t-1);
  font-size:15px;
  transition:border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.mini-form input[type="email"]::placeholder{color:var(--t-3)}
.mini-form input[type="email"]:focus{
  outline:none;
  border-color:var(--c-accent);
  box-shadow:0 0 0 3px rgba(23,226,180,.16);
}
.mini-form .btn-grad{width:100%}

/* ============ tile cards ============ */
.tile-card{
  display:grid;
  grid-template-columns:minmax(0,4fr) minmax(0,8fr);
  gap:24px;
  align-items:stretch;
  padding:20px;
  margin-bottom:24px;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:var(--card-grad);
  box-shadow:var(--sh-1);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.tile-card:last-child{margin-bottom:0}
.tile-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--sh-2);
  border-color:rgba(23,226,180,.32);
}
.tile-media{
  border-radius:18px;
  overflow:hidden;
  background:var(--bg-2);
  aspect-ratio:16/10;
}
.tile-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.tile-card:hover .tile-media img{transform:scale(1.04)}
.tile-body{display:flex;flex-direction:column;gap:10px;padding:6px 4px 6px 0}
.tile-body h2{font-size:20px;font-weight:700;line-height:1.4}
.tile-body p{font-size:15px;line-height:1.78;color:var(--t-2)}
.tile-link{
  margin-top:auto;
  display:inline-flex;align-items:center;gap:8px;
  color:var(--c-accent);
  font-size:14px;font-weight:700;
}
.tile-link i{font-size:12px;transition:transform .28s var(--ease)}
.tile-link:hover i{transform:translateX(4px)}

.tile-card.reverse{grid-template-columns:minmax(0,8fr) minmax(0,4fr)}
.tile-card.reverse .tile-media{order:2}
.tile-card.reverse .tile-body{order:1;padding:6px 0 6px 4px}

/* ============ steps ============ */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.step-card{
  position:relative;
  padding:26px 24px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:var(--card-grad);
  box-shadow:var(--sh-1);
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.step-card:hover{transform:translateY(-4px);border-color:rgba(23,226,180,.3);box-shadow:var(--sh-2)}
.step-card .idx{
  display:block;
  font-size:34px;font-weight:800;line-height:1;
  font-variant-numeric:tabular-nums;
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  -webkit-text-fill-color:transparent;
}
.step-card h3{font-size:17px;font-weight:700;margin:14px 0 8px}
.step-card p{font-size:14.5px;color:var(--t-2);line-height:1.72}

/* ============ qa ============ */
.qa-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.qa-card{
  padding:24px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  transition:border-color .28s var(--ease),background .28s var(--ease),transform .28s var(--ease);
}
.qa-card:hover{border-color:rgba(23,226,180,.3);background:rgba(255,255,255,.045);transform:translateY(-3px)}
.qa-card h3{display:flex;gap:10px;font-size:17px;font-weight:700;line-height:1.5;margin-bottom:10px}
.qa-card h3 i{color:var(--c-accent);font-size:15px;margin-top:5px;flex-shrink:0}
.qa-card p{font-size:15px;color:var(--t-2);line-height:1.78}

/* ============ cta ============ */
.cta-band{padding:8px 0 96px}
.cta-inner{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-xl);
  padding:42px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
  background:linear-gradient(120deg,#FF4D2E 0%,#FF2E7E 48%,#7A4DFF 100%);
  box-shadow:0 24px 60px rgba(122,77,255,.3);
}
.cta-inner::before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,10,26,.34),rgba(14,10,26,.62));
}
.cta-inner > *{position:relative;z-index:1}
.cta-copy{max-width:560px}
.cta-copy h2{
  font-size:clamp(22px,2.6vw,32px);
  font-weight:800;
  line-height:1.3;
  color:#fff;
  margin-bottom:10px;
}
.cta-copy p{font-size:15.5px;color:rgba(255,255,255,.88)}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ============ footer ============ */
.site-footer{
  position:relative;
  background:#0B0817;
  border-top:1px solid var(--line);
  padding:64px 0 24px;
}
.footer-band{position:absolute;top:0;left:0;right:0;height:2px;background:var(--grad)}
.footer-main{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.3fr;
  gap:32px;
  padding-bottom:40px;
}
.footer-brand p{font-size:14.5px;color:var(--t-2);margin:16px 0 18px;max-width:320px;line-height:1.72}
.social-row{display:flex;gap:10px}
.social-row span{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  color:var(--t-2);
  font-size:14px;
  transition:all .28s var(--ease);
}
.social-row span:hover{color:var(--c-accent);border-color:rgba(23,226,180,.5);transform:translateY(-2px)}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col ul a{display:inline-block;font-size:14.5px;color:var(--t-2)}
.footer-col ul a:hover{color:#fff;transform:translateX(2px)}
.footer-contact p{font-size:14px;color:var(--t-2);margin-bottom:12px;line-height:1.72}
.footer-bottom{
  border-top:1px solid var(--line);
  padding-top:20px;
  display:flex;justify-content:space-between;align-items:center;
  gap:10px;flex-wrap:wrap;
}
.footer-bottom p{font-size:12.5px;color:var(--t-3);margin:0}
.footer-bottom a{color:var(--t-3)}
.footer-bottom a:hover{color:var(--c-accent)}

/* ============ to top ============ */
.to-top{
  position:fixed;
  right:24px;bottom:24px;
  z-index:1040;
  width:48px;height:48px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid rgba(23,226,180,.5);
  background:rgba(14,10,26,.9);
  color:var(--c-accent);
  opacity:0;visibility:hidden;
  transform:translateY(10px);
  transition:all .3s var(--ease);
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--grad);color:#fff;border-color:transparent}

/* ============ responsive ============ */
@media (max-width:1199px){
  .footer-main{grid-template-columns:1.3fr 1fr 1fr;gap:28px}
  .footer-contact{grid-column:1 / -1}
}
@media (max-width:991px){
  body{padding-top:60px}
  .site-header{height:60px}
  .section{padding:64px 0}
  .page-banner{padding:32px;min-height:240px}
  .banner-copy h1{font-size:clamp(28px,5.4vw,38px)}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .tile-card,
  .tile-card.reverse{grid-template-columns:1fr;gap:18px}
  .tile-card.reverse .tile-media{order:1}
  .tile-card.reverse .tile-body{order:2;padding:0}
  .tile-body{padding:0}
}
@media (max-width:767px){
  .section{padding:52px 0}
  .page-hero{padding:24px 0 0}
  .page-banner{border-radius:22px;padding:26px 22px;min-height:0}
  .banner-badges{gap:10px}
  .stat-badge{min-width:104px;padding:14px 16px}
  .stat-badge .num{font-size:24px}
  .qa-grid{grid-template-columns:1fr}
  .cta-band{padding-bottom:64px}
  .cta-inner{padding:30px 24px;border-radius:22px}
  .cta-actions .btn-grad,.cta-actions .btn-ghost{width:100%}
  .footer-main{grid-template-columns:1fr 1fr;gap:26px;padding-bottom:28px}
  .footer-brand{grid-column:1 / -1}
  .footer-contact{grid-column:1 / -1}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:575px){
  .container{padding-left:16px;padding-right:16px}
  .section{padding:44px 0}
  .steps{grid-template-columns:1fr}
  .tile-card{padding:16px;border-radius:20px}
  .side-card{padding:18px;border-radius:18px}
  .qa-card{padding:20px;border-radius:18px}
  .brand-text{font-size:16px}
  .footer-main{grid-template-columns:1fr}
  .to-top{right:16px;bottom:16px;width:44px;height:44px}
}
@media (max-width:374px){
  .banner-badges{flex-wrap:nowrap;overflow-x:auto;padding-bottom:4px;scrollbar-width:none;-ms-overflow-style:none}
  .banner-badges::-webkit-scrollbar{display:none}
  .stat-badge{flex:0 0 auto}
}

/* roulang page: category2 */
:root{
  --bg-0:#0E0A1A;
  --bg-1:#16102B;
  --bg-2:#1C1436;
  --bg-3:#241A45;
  --c-primary:#FF4D2E;
  --c-primary-dark:#E0361A;
  --c-accent:#17E2B4;
  --c-violet:#7A4DFF;
  --t-1:#E8E4F5;
  --t-2:#A99FC7;
  --t-3:#7B7196;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.16);
  --grad:linear-gradient(120deg,#FF4D2E 0%,#FF2E7E 48%,#7A4DFF 100%);
  --grad-line:linear-gradient(90deg,#17E2B4 0%,rgba(23,226,180,0) 100%);
  --r-xl:28px;
  --r-lg:24px;
  --r-md:20px;
  --r-sm:14px;
  --sh-1:0 12px 32px rgba(0,0,0,.35);
  --sh-2:0 24px 60px rgba(0,0,0,.5);
  --glow:0 0 0 1px rgba(23,226,180,.18),0 0 24px rgba(23,226,180,.15);
  --ease:cubic-bezier(.22,.61,.36,1);
  --nav-h:72px;
  --bs-body-bg:#0E0A1A;
  --bs-body-color:#E8E4F5;
  --bs-body-font-family:-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --bs-border-radius:14px;
  --bs-border-color:rgba(255,255,255,.08);
  --bs-primary:#FF4D2E;
  --bs-link-color:#17E2B4;
  --bs-link-hover-color:#17E2B4;
  --bs-emphasis-color:#E8E4F5;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--bs-body-font-family);
  font-size:16px;
  line-height:1.75;
  color:var(--t-1);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(900px 520px at 88% -8%,rgba(122,77,255,.20),transparent 62%),
    radial-gradient(680px 420px at 4% 12%,rgba(255,46,126,.14),transparent 60%),
    repeating-linear-gradient(0deg,rgba(255,255,255,.014) 0 1px,transparent 1px 4px);
  background-attachment:fixed;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .28s var(--ease)}
a:hover{color:var(--c-accent)}
button{font-family:inherit}
h1,h2,h3,h4{font-family:var(--bs-body-font-family);color:var(--t-1);margin:0}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
::selection{background:rgba(255,46,126,.35);color:#fff}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.container{max-width:1320px}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(14,10,26,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:all .28s var(--ease);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:var(--grad-line);opacity:.85;
}
.site-header.is-scrolled{
  background:rgba(12,8,22,.95);
  box-shadow:0 10px 30px rgba(0,0,0,.45);
}
.header-inner{
  display:flex;align-items:center;gap:24px;
  height:var(--nav-h);
  transition:height .28s var(--ease);
}
.site-header.is-scrolled .header-inner{height:60px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  width:40px;height:40px;border-radius:14px;
  background:var(--grad);
  display:grid;place-items:center;
  font-size:19px;font-weight:800;color:#fff;
  box-shadow:0 8px 22px rgba(255,46,126,.32);
  letter-spacing:-.02em;
}
.brand-text{
  font-size:19px;font-weight:800;letter-spacing:-.01em;color:#fff;
  display:flex;align-items:baseline;gap:6px;line-height:1.1;
}
.brand-text em{
  font-style:normal;font-size:12px;font-weight:600;
  color:var(--c-accent);letter-spacing:.14em;
  padding-left:8px;border-left:1px solid rgba(23,226,180,.45);
}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  position:relative;padding:10px 16px;
  font-size:15px;font-weight:500;color:var(--t-2) !important;
  border-radius:999px;white-space:nowrap;
  transition:all .28s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:16px;right:16px;bottom:4px;height:2px;
  border-radius:2px;background:var(--c-accent);
  opacity:0;transition:opacity .25s var(--ease);
  box-shadow:0 0 10px rgba(23,226,180,.85);
}
.nav-link:hover{color:#fff !important}
.nav-link:hover::after{opacity:.5}
.nav-link.active{color:var(--c-accent) !important;font-weight:700}
.nav-link.active::after{opacity:1}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:8px}
.btn-cta{
  display:inline-flex;align-items:center;gap:8px;
  height:44px;padding:0 22px;border-radius:999px;
  background:var(--grad);color:#fff;font-size:15px;font-weight:700;
  box-shadow:0 10px 26px rgba(255,46,126,.28);
  transition:all .28s var(--ease);
}
.btn-cta:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px rgba(255,46,126,.42)}
.nav-toggle{
  width:44px;height:44px;border-radius:14px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line-2);color:var(--t-1);
  display:grid;place-items:center;font-size:17px;
  transition:all .28s var(--ease);
}
.nav-toggle:hover{background:rgba(23,226,180,.12);border-color:rgba(23,226,180,.5);color:var(--c-accent)}
.nav-offcanvas{
  background:#120C24;color:var(--t-1);
  border-left:1px solid rgba(23,226,180,.25);
  width:320px;
}
.nav-offcanvas .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.nav-offcanvas .offcanvas-title{font-size:16px;font-weight:700;color:#fff}
.nav-offcanvas .btn-close{filter:invert(1) grayscale(1) brightness(1.6);opacity:.7}
.nav-offcanvas .offcanvas-body{padding:14px 12px 0;display:flex;flex-direction:column;height:100%}
.mobile-nav-list{display:flex;flex-direction:column;gap:6px}
.mobile-nav-list a{
  display:flex;align-items:center;justify-content:space-between;
  height:48px;padding:0 16px;border-radius:14px;
  color:var(--t-1);font-size:15px;font-weight:600;
  background:rgba(255,255,255,.03);
  border:1px solid transparent;
  transition:all .28s var(--ease);
}
.mobile-nav-list a i{color:var(--t-3);font-size:13px}
.mobile-nav-list a:hover{background:rgba(255,255,255,.06);color:#fff}
.mobile-nav-list a.active{
  border-color:rgba(23,226,180,.35);
  color:var(--c-accent);
  box-shadow:inset 3px 0 0 var(--grad);
  background:rgba(23,226,180,.08);
}
.mobile-cta{margin-top:auto;padding:18px 4px 24px}
.mobile-cta .btn-cta{width:100%;justify-content:center}

/* ---------- 通用区块 ---------- */
.section{padding:88px 0}
.section-tight{padding:64px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:999px;
  background:rgba(23,226,180,.10);
  border:1px solid rgba(23,226,180,.35);
  color:var(--c-accent);
  font-size:13px;font-weight:600;letter-spacing:.06em;
}
.eyebrow i{font-size:12px}
.section-title{margin-bottom:14px}
.section-title h2{
  font-size:clamp(24px,2.8vw,36px);font-weight:700;line-height:1.28;
  letter-spacing:-.01em;
}
.title-bar{
  display:block;width:28px;height:4px;border-radius:2px;
  background:var(--grad);margin-bottom:16px;
}
.lead-text{color:var(--t-2);font-size:16px;max-width:720px}
.grad-text{
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;
  color:transparent;
}

/* ---------- 数据徽章 ---------- */
.badge-strip{display:flex;flex-wrap:wrap;gap:14px}
.stat-badge{
  display:flex;flex-direction:column;gap:2px;
  min-width:132px;padding:14px 20px;
  border-radius:999px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(23,226,180,.28);
  transition:all .28s var(--ease);
}
.stat-badge:hover{
  transform:translateY(-3px);
  background:rgba(23,226,180,.08);
  box-shadow:var(--glow);
}
.stat-badge .num{
  font-size:28px;font-weight:800;line-height:1.15;
  font-variant-numeric:tabular-nums;
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-badge .num.accent{
  background:none;-webkit-text-fill-color:var(--c-accent);color:var(--c-accent);
}
.stat-badge .cap{font-size:12.5px;color:var(--t-2);letter-spacing:.02em}

/* ---------- 页头 ---------- */
.page-head{
  position:relative;
  padding:72px 0 64px;
  background:var(--bg-1);
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-head::before{
  content:"";position:absolute;top:-320px;right:-180px;
  width:760px;height:760px;border-radius:50%;
  background:radial-gradient(circle,rgba(122,77,255,.42) 0%,rgba(255,46,126,.22) 38%,rgba(255,46,126,0) 70%);
  pointer-events:none;
}
.page-head::after{
  content:"";position:absolute;left:-140px;bottom:-260px;
  width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(23,226,180,.22) 0%,rgba(23,226,180,0) 68%);
  pointer-events:none;
}
.page-head .container{position:relative;z-index:2}
.crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--t-3);margin-bottom:22px;flex-wrap:wrap}
.crumb a{color:var(--t-2)}
.crumb a:hover{color:var(--c-accent)}
.crumb .sep{color:var(--t-3);opacity:.6}
.crumb .current{color:var(--t-1);font-weight:600}
.page-head h1{
  font-size:clamp(30px,4.2vw,52px);
  font-weight:800;line-height:1.18;letter-spacing:-.02em;
  max-width:900px;
}
.page-head p.desc{
  margin-top:18px;max-width:680px;
  color:var(--t-2);font-size:16.5px;line-height:1.8;
}
.page-head .badge-strip{margin-top:32px}

/* ---------- 标签条 ---------- */
.tag-section{padding:26px 0 6px}
.tag-scroller{
  display:flex;gap:12px;overflow-x:auto;padding:8px 0 16px;
  scrollbar-width:none;-ms-overflow-style:none;
}
.tag-scroller::-webkit-scrollbar{display:none}
.tag-pill{
  flex:0 0 auto;
  display:inline-flex;align-items:center;gap:8px;
  height:44px;padding:0 22px;border-radius:999px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line-2);
  color:var(--t-2);font-size:14.5px;font-weight:600;
  cursor:pointer;white-space:nowrap;
  transition:all .28s var(--ease);
}
.tag-pill i{font-size:13px;opacity:.75}
.tag-pill:hover{color:#fff;border-color:rgba(23,226,180,.5);background:rgba(23,226,180,.10)}
.tag-pill.active{
  background:var(--grad);border-color:transparent;color:#fff;
  box-shadow:0 12px 28px rgba(255,46,126,.3);
}

/* ---------- 错落卡片 ---------- */
.mosaic{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;align-items:start}
.mosaic-col{display:flex;flex-direction:column;gap:24px}
.mosaic-col.offset{padding-top:56px}
.story-card{
  position:relative;
  border-radius:var(--r-lg);
  background:linear-gradient(160deg,#241A45 0%,#1A1233 100%);
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:all .28s var(--ease);
}
.story-card:hover{
  transform:translateY(-4px);
  border-color:rgba(23,226,180,.38);
  box-shadow:var(--sh-2),var(--glow);
}
.story-card:hover .thumb img{transform:scale(1.04)}
.thumb{
  position:relative;overflow:hidden;
  aspect-ratio:16/9;background:var(--bg-3);
}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,10,26,0) 30%,rgba(14,10,26,.72) 100%);
}
.thumb .thumb-tag{
  position:absolute;left:16px;top:16px;z-index:2;
  padding:5px 13px;border-radius:999px;
  background:rgba(14,10,26,.72);
  border:1px solid rgba(23,226,180,.45);
  color:var(--c-accent);font-size:12px;font-weight:600;
  letter-spacing:.04em;backdrop-filter:blur(6px);
}
.story-body{padding:22px 24px 20px}
.story-body h3{font-size:21px;font-weight:700;line-height:1.35;margin-bottom:10px}
.story-body p{color:var(--t-2);font-size:15px;line-height:1.8}
.story-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
  font-size:13px;color:var(--t-3);
}
.story-meta .meta-left{display:flex;align-items:center;gap:14px;flex-wrap:wrap;font-variant-numeric:tabular-nums}
.story-meta .chip{
  padding:3px 11px;border-radius:999px;
  border:1px solid rgba(23,226,180,.35);
  color:var(--c-accent);font-size:12px;font-weight:600;
}
.story-meta .more{display:inline-flex;align-items:center;gap:6px;color:var(--t-2);font-weight:600}
.story-meta .more i{font-size:12px;transition:transform .28s var(--ease)}
.story-card:hover .story-meta .more{color:var(--c-accent)}
.story-card:hover .story-meta .more i{transform:translateX(4px)}

/* ---------- 要点对比卡 ---------- */
.points-section{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.points-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:38px}
.point-card{
  position:relative;
  padding:26px 22px 24px;
  border-radius:var(--r-md);
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
  transition:all .28s var(--ease);
}
.point-card::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;
  border-radius:3px;background:var(--grad);opacity:0;
  transition:opacity .28s var(--ease);
}
.point-card:hover{
  transform:translateY(-4px);
  background:rgba(255,255,255,.055);
  border-color:rgba(23,226,180,.32);
  box-shadow:var(--sh-1);
}
.point-card:hover::before{opacity:1}
.point-card .idx{
  display:block;
  font-size:26px;font-weight:800;line-height:1;
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:14px;
}
.point-card h3{font-size:17px;font-weight:700;margin-bottom:8px}
.point-card p{font-size:14.5px;color:var(--t-2);line-height:1.75}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:920px;margin:34px auto 0}
.faq-item{
  border-radius:var(--r-sm);
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
  margin-bottom:12px;
  overflow:hidden;
  transition:all .28s var(--ease);
}
.faq-item:last-child{margin-bottom:0}
.faq-item .accordion-button{
  width:100%;background:transparent;border:0;
  padding:18px 22px;
  color:var(--t-1);font-size:16.5px;font-weight:600;text-align:left;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  box-shadow:none;
  transition:all .28s var(--ease);
}
.faq-item .accordion-button::after{display:none}
.faq-item .accordion-button .ic{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;
  border:1px solid rgba(23,226,180,.4);
  color:var(--c-accent);font-size:12px;
  transition:all .28s var(--ease);
}
.faq-item .accordion-button:not(.collapsed){
  color:#fff;background:rgba(23,226,180,.05);
  box-shadow:inset 3px 0 0 var(--grad);
}
.faq-item .accordion-button:not(.collapsed) .ic{
  background:var(--grad);border-color:transparent;color:#fff;transform:rotate(180deg);
}
.faq-item .accordion-button:hover{background:rgba(255,255,255,.05)}
.faq-item .accordion-body{
  padding:4px 22px 20px;
  color:var(--t-2);font-size:15px;line-height:1.85;
}

/* ---------- CTA ---------- */
.cta-band{padding:0 0 88px}
.cta-card{
  position:relative;overflow:hidden;
  border-radius:var(--r-xl);
  padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  background:linear-gradient(120deg,rgba(255,77,46,.20) 0%,rgba(255,46,126,.18) 48%,rgba(122,77,255,.22) 100%),var(--bg-2);
  border:1px solid rgba(23,226,180,.24);
  box-shadow:var(--sh-1);
}
.cta-card::before{
  content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(23,226,180,.26),transparent 68%);
}
.cta-card > *{position:relative;z-index:2}
.cta-card h2{font-size:clamp(22px,2.4vw,30px);font-weight:800;line-height:1.3}
.cta-card p{color:var(--t-2);font-size:15.5px;margin-top:10px;max-width:560px}
.cta-actions{display:flex;gap:14px;flex:0 0 auto;flex-wrap:wrap}
.btn-primary-grad{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 28px;border-radius:999px;
  background:var(--grad);color:#fff;font-size:15.5px;font-weight:700;
  border:0;box-shadow:0 12px 28px rgba(255,46,126,.3);
  transition:all .28s var(--ease);
}
.btn-primary-grad:hover{color:#fff;transform:translateY(-2px);box-shadow:0 18px 38px rgba(255,46,126,.45)}
.btn-outline-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:999px;
  background:transparent;color:var(--c-accent);font-size:15.5px;font-weight:700;
  border:1px solid rgba(23,226,180,.55);
  transition:all .28s var(--ease);
}
.btn-outline-accent:hover{background:rgba(23,226,180,.12);color:var(--c-accent);transform:translateY(-2px)}
.back-home{display:flex;justify-content:center;padding:0 0 72px}
.back-home a{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--t-2);font-size:14.5px;font-weight:600;
}
.back-home a i{transition:transform .28s var(--ease)}
.back-home a:hover{color:var(--c-accent)}
.back-home a:hover i{transform:translateX(-4px)}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:#0B0717;border-top:1px solid var(--line);padding-top:0}
.footer-band{height:2px;background:var(--grad);width:100%}
.footer-main{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding:64px 0 44px;
}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{color:var(--t-2);font-size:14.5px;line-height:1.8;max-width:340px}
.social-row{display:flex;gap:12px;margin-top:20px}
.social-row span{
  width:38px;height:38px;border-radius:50%;
  display:grid;place-items:center;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line-2);
  color:var(--t-2);font-size:14px;
  transition:all .28s var(--ease);
}
.social-row span:hover{color:var(--c-accent);border-color:rgba(23,226,180,.5);background:rgba(23,226,180,.1)}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col li a{color:var(--t-3);font-size:14.5px;display:inline-block;transition:all .28s var(--ease)}
.footer-col li a:hover{color:#fff;transform:translateX(2px)}
.footer-contact p{color:var(--t-3);font-size:14px;line-height:1.8;margin-bottom:10px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 28px;border-top:1px solid var(--line);
}
.footer-bottom p{font-size:12.5px;color:var(--t-3)}
.footer-bottom a{color:var(--t-2)}
.footer-bottom a:hover{color:var(--c-accent)}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:1020;
  width:48px;height:48px;border-radius:50%;
  display:grid;place-items:center;
  background:rgba(14,10,26,.9);
  border:1px solid rgba(23,226,180,.45);
  color:var(--c-accent);font-size:16px;
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:all .28s var(--ease);
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:rgba(23,226,180,.15);box-shadow:var(--glow)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .mosaic-col.offset{padding-top:36px}
  .footer-main{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
  .footer-contact{grid-column:1 / -1}
}
@media (max-width:991px){
  .section{padding:64px 0}
  .section-tight{padding:52px 0}
  .page-head{padding:52px 0 48px}
  .mosaic{grid-template-columns:1fr}
  .mosaic-col.offset{padding-top:0}
  .points-grid{grid-template-columns:repeat(2,1fr)}
  .cta-card{flex-direction:column;align-items:flex-start;padding:36px 28px}
  .cta-actions{width:100%}
  .footer-main{grid-template-columns:1fr 1fr;gap:32px;padding:52px 0 36px}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:52px 0}
  .page-head h1{font-size:32px}
  .page-head p.desc{font-size:15.5px}
  .stat-badge{min-width:calc(50% - 7px);flex:1 1 calc(50% - 7px);padding:12px 16px}
  .stat-badge .num{font-size:24px}
  .points-grid{grid-template-columns:1fr}
  .cta-actions{flex-direction:column}
  .cta-actions .btn-primary-grad,.cta-actions .btn-outline-accent{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .brand-text{font-size:17px}
  .brand-text em{font-size:11px;letter-spacing:.08em}
  .to-top{right:16px;bottom:16px;width:44px;height:44px}
}
@media (max-width:520px){
  .brand-text{display:flex;flex-direction:column;gap:0;align-items:flex-start}
  .brand-text em{border-left:0;padding-left:0}
  .row-gap-sm{gap:12px}
  .story-body{padding:18px 18px 16px}
  .story-body h3{font-size:18px}
  .faq-item .accordion-button{font-size:15.5px;padding:16px 18px}
  .faq-item .accordion-body{padding:2px 18px 18px}
  .cta-card{padding:28px 20px;border-radius:22px}
  .footer-main{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
}