/* roulang page: index */
:root{
  --brand:#6C4DFF;
  --brand-2:#18E0B8;
  --coral:#FF7A45;
  --ink:#0D0E16;
  --surface:#F5F6FA;
  --white:#FFFFFF;
  --text:#12131A;
  --muted:#6B7280;
  --line:rgba(18,19,26,.10);
  --grad:linear-gradient(135deg,#6C4DFF 0%,#18E0B8 100%);
  --r-card:24px;
  --r-block:32px;
  --r-btn:12px;
  --r-pill:999px;
  --sh:0 16px 40px rgba(13,14,22,.10);
  --sh-hover:0 22px 54px rgba(13,14,22,.16);
  --nav-h:76px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--surface);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:inherit;text-decoration:none}
a:hover{color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.25;letter-spacing:-.01em;color:var(--text)}
p{margin:0}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
:focus-visible{outline:2px solid var(--brand-2);outline-offset:3px}
.container{width:min(1240px,92%);margin:0 auto}
.section{padding:96px 0;scroll-margin-top:90px}
.section-head{max-width:740px;margin-bottom:40px}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:700;color:var(--brand);letter-spacing:.10em;text-transform:uppercase}
.eyebrow::before{content:"";width:28px;height:3px;border-radius:2px;background:var(--grad)}
.section-title{font-size:clamp(24px,3.2vw,38px);margin-top:14px}
.section-desc{color:var(--muted);margin-top:14px;font-size:15px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 28px rgba(108,77,255,.30)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 38px rgba(108,77,255,.42);color:#fff}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{border-color:rgba(255,255,255,.55);color:#fff;background:rgba(255,255,255,.04)}
.btn-ghost:hover{background:rgba(255,255,255,.14);transform:translateY(-2px);color:#fff}
.btn-outline{border-color:var(--line);background:#fff;color:var(--text)}
.btn-outline:hover{border-color:rgba(108,77,255,.42);color:var(--brand);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(13,14,22,.22);color:var(--ink)}
.btn-sm{padding:9px 18px;font-size:14px;border-radius:var(--r-pill)}

/* 头部导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(13,14,22,.86);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 14px 34px rgba(13,14,22,.34)}
.nav-inner{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:18px;height:var(--nav-h)}
.nav-left,.nav-right{display:flex;align-items:center;gap:24px}
.nav-right{justify-content:flex-end}
.nav-link{position:relative;color:rgba(255,255,255,.72);font-size:15px;font-weight:500;padding:6px 0;transition:color .2s ease}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .24s ease}
.nav-link:hover{color:#fff}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:#fff}
.nav-link.is-active::after{transform:scaleX(1)}
.brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:800;letter-spacing:.02em;white-space:nowrap}
.brand-mark{width:34px;height:34px;border-radius:11px;background:var(--grad);display:grid;place-items:center;box-shadow:0 8px 20px rgba(108,77,255,.42);flex:0 0 auto}
.brand-mark svg{width:17px;height:17px;display:block}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid rgba(255,255,255,.20);color:#fff;align-items:center;justify-content:center;transition:background .2s ease}
.nav-toggle:hover{background:rgba(255,255,255,.10)}
.mobile-menu{
  position:fixed;left:0;right:0;top:var(--nav-h);z-index:55;
  display:none;flex-direction:column;gap:2px;
  padding:18px 4% 28px;
  background:rgba(13,14,22,.98);
  border-bottom:1px solid rgba(255,255,255,.08);
  max-height:calc(100vh - var(--nav-h));overflow:auto;
}
.mobile-menu.is-open{display:flex}
.mobile-menu a{color:rgba(255,255,255,.82);padding:14px 4px;font-size:16px;border-bottom:1px solid rgba(255,255,255,.06)}
.mobile-menu a:hover{color:var(--brand-2)}
.mobile-menu .btn{margin-top:18px;width:100%;color:#fff}
.mobile-menu .btn-primary{color:#fff}

/* Hero */
.hero{
  position:relative;display:flex;align-items:center;
  min-height:88vh;color:#fff;overflow:hidden;
  background-color:var(--ink);
  background-image:
    linear-gradient(100deg,rgba(13,14,22,.95) 0%,rgba(13,14,22,.74) 46%,rgba(13,14,22,.34) 100%),
    url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:170px;background:linear-gradient(180deg,rgba(13,14,22,0),rgba(13,14,22,.82));pointer-events:none}
.hero-inner{position:relative;z-index:2;padding:110px 0 96px;max-width:840px}
.hero-brand{display:inline-flex;align-items:center;gap:10px;padding:8px 18px 8px 12px;border-radius:var(--r-pill);background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.18);font-size:14px;font-weight:600;letter-spacing:.04em;color:#fff}
.hero h1{font-size:clamp(30px,5vw,56px);margin:26px 0 18px;color:#fff;letter-spacing:-.02em}
.hero-sub{font-size:clamp(15px,1.6vw,18px);color:rgba(255,255,255,.82);max-width:660px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:42px}
.stat{display:inline-flex;align-items:baseline;gap:8px;padding:8px 16px;border-radius:var(--r-pill);background:rgba(13,14,22,.55);border:1px solid rgba(255,255,255,.14);font-size:13px;color:rgba(255,255,255,.76)}
.stat b{font-family:"DIN Alternate","Barlow Condensed",sans-serif;font-size:18px;font-weight:700;color:var(--brand-2)}
.stat:nth-child(2) b{color:var(--coral)}
.stat:nth-child(3) b{color:#fff}
.stat:nth-child(4) b{color:var(--brand-2)}

/* 卡片通用 */
.media-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.media-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(108,77,255,.26);color:inherit}
.thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--grad)}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .28s ease}
.media-card:hover .thumb img{transform:scale(1.04)}
.chip{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:var(--r-pill);font-size:12px;font-weight:600;background:rgba(13,14,22,.68);color:var(--brand-2);border:1px solid rgba(255,255,255,.14);backdrop-filter:blur(4px)}
.chip-corner{position:absolute;top:12px;left:12px}
.chip-coral{background:rgba(255,122,69,.94);color:#fff;border-color:rgba(255,255,255,.2)}
.card-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{font-size:18px;font-weight:700;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-text{font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;color:var(--muted);margin-top:auto}
.card-meta span{display:inline-flex;align-items:center}
.card-meta span+span::before{content:"·";margin-right:8px;color:rgba(18,19,26,.30)}
.tag{display:inline-flex;padding:3px 10px;border-radius:var(--r-pill);background:rgba(108,77,255,.10);color:var(--brand);font-size:12px;font-weight:600}

/* 横滑片库 */
.rail-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.rail-arrows{display:flex;gap:10px}
.rail-btn{width:44px;height:44px;border-radius:var(--r-pill);border:1px solid var(--line);background:#fff;color:var(--text);display:grid;place-items:center;transition:background .2s ease,color .2s ease,transform .2s ease,border-color .2s ease}
.rail-btn:hover{background:var(--grad);color:#fff;border-color:transparent;transform:translateY(-2px)}
.rail{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 4px 18px;scrollbar-width:none}
.rail::-webkit-scrollbar{display:none}
.rail>.media-card{flex:0 0 300px;scroll-snap-align:start}
.rail-progress{height:4px;border-radius:var(--r-pill);background:rgba(18,19,26,.08);overflow:hidden;margin-top:6px}
.rail-progress span{display:block;height:100%;width:30%;border-radius:var(--r-pill);background:var(--grad);transition:width .18s ease}

/* 热播推荐 */
.spotlight{display:grid;grid-template-columns:1.9fr 1fr;gap:28px;align-items:start}
.rank-list{display:flex;flex-direction:column;gap:12px}
.rank-item{
  display:grid;grid-template-columns:56px 96px 1fr auto;gap:16px;align-items:center;
  padding:14px;border-radius:20px;background:#fff;border:1px solid var(--line);box-shadow:var(--sh);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.rank-item:hover{transform:translateX(4px);box-shadow:var(--sh-hover);border-color:rgba(24,224,184,.42);color:inherit}
.rank-no{font-family:"DIN Alternate","Barlow Condensed",sans-serif;font-size:30px;font-weight:700;text-align:center;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.rank-thumb{width:96px;height:64px;border-radius:12px;overflow:hidden;background:var(--grad)}
.rank-thumb img{width:100%;height:100%;object-fit:cover}
.rank-info strong{display:block;font-size:16px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rank-info em{display:block;font-style:normal;font-size:12px;color:var(--muted);margin-top:4px}
.feature-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-block);overflow:hidden;box-shadow:var(--sh);transition:transform .24s ease,box-shadow .24s ease}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);color:inherit}
.feature-card .thumb{aspect-ratio:4/3;border-radius:0}
.feature-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:12px}
.feature-body h3{font-size:22px}
.feature-body p{font-size:14px;color:var(--muted)}
.feature-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:6px;font-size:13px;color:var(--muted)}

/* 编辑片单 2+1 */
.list-grid{display:grid;grid-template-columns:1fr 1fr .85fr;gap:24px;align-items:start}
.mini-list{display:flex;flex-direction:column;gap:12px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:20px;box-shadow:var(--sh)}
.mini-list h3{font-size:16px;margin-bottom:4px}
.mini-item{display:grid;grid-template-columns:88px 1fr;gap:12px;align-items:center;padding:10px 0;border-bottom:1px dashed var(--line)}
.mini-item:last-child{border-bottom:0;padding-bottom:0}
.mini-item .thumb-sm{width:88px;height:60px;border-radius:12px;overflow:hidden;background:var(--grad)}
.mini-item .thumb-sm img{width:100%;height:100%;object-fit:cover}
.mini-item strong{font-size:15px;font-weight:700;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.mini-item em{font-style:normal;font-size:12px;color:var(--muted)}
.accent-purple{border-top:3px solid var(--brand)}
.accent-cyan{border-top:3px solid var(--brand-2)}
.accent-coral{border-top:3px solid var(--coral)}

/* 最新信息 */
.news-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:28px;align-items:start}
.news-list{display:flex;flex-direction:column;gap:14px}
.news-item{display:grid;grid-template-columns:120px 1fr;gap:16px;align-items:center;padding:14px;background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--sh);transition:transform .24s ease,box-shadow .24s ease}
.news-item:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);color:inherit}
.news-thumb{width:120px;height:80px;border-radius:12px;overflow:hidden;background:var(--grad)}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.news-item h3{font-size:16px;font-weight:700;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item p{font-size:13px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;margin-top:4px}
.news-item .card-meta{margin-top:8px}
.empty-state{padding:36px 28px;border-radius:20px;border:1px dashed rgba(18,19,26,.18);background:#fff;color:var(--muted);text-align:center;font-size:15px}

/* 分类入口 */
.cat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:22px}
.cat-card{display:flex;flex-direction:column;gap:12px;padding:26px 24px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh);transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(108,77,255,.3);color:inherit}
.cat-icon{width:46px;height:46px;border-radius:14px;background:var(--grad);display:grid;place-items:center;color:#fff;font-weight:700;font-family:"DIN Alternate","Barlow Condensed",sans-serif;font-size:18px}
.cat-card h3{font-size:19px}
.cat-card p{font-size:14px;color:var(--muted)}
.cat-card span.more{font-size:13px;font-weight:600;color:var(--brand);margin-top:auto}

/* 深色数据带 */
.dark-band{background:radial-gradient(120% 130% at 10% 0%,rgba(108,77,255,.38) 0%,rgba(13,14,22,0) 58%),#0D0E16;color:#fff;border-radius:var(--r-block);padding:64px 48px}
.dark-band .eyebrow{color:var(--brand-2)}
.dark-band h2{color:#fff;font-size:clamp(24px,3.2vw,36px);margin-top:14px}
.dark-band .lead{color:rgba(255,255,255,.72);margin-top:14px;max-width:660px;font-size:15px}
.data-row{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:44px}
.data-cell{padding:22px;border-radius:20px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.10)}
.data-cell b{display:block;font-family:"DIN Alternate","Barlow Condensed",sans-serif;font-size:34px;font-weight:700;background:linear-gradient(135deg,#fff 20%,#18E0B8 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;line-height:1.2}
.data-cell span{font-size:13px;color:rgba(255,255,255,.68)}
.voice-row{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:28px}
.voice{padding:24px;border-radius:20px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.10)}
.voice p{color:rgba(255,255,255,.82);font-size:14px}
.voice footer{margin-top:16px;font-size:13px;color:var(--brand-2);font-weight:600}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:880px}
.faq-item{border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:var(--sh);overflow:hidden;transition:border-color .24s ease,box-shadow .24s ease}
.faq-item[open]{border-color:rgba(108,77,255,.32);box-shadow:var(--sh-hover)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 22px;font-size:16px;font-weight:700}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:22px;font-weight:400;color:var(--brand);transition:transform .2s ease}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-body{padding:0 22px 22px;font-size:15px;color:var(--muted);animation:fade .2s ease}
@keyframes fade{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* CTA */
.cta-band{background:var(--grad);border-radius:var(--r-block);padding:56px 48px;display:grid;grid-template-columns:1.5fr auto;gap:32px;align-items:center;color:#fff;box-shadow:0 24px 60px rgba(108,77,255,.28)}
.cta-band h2{color:#fff;font-size:clamp(24px,3.2vw,36px)}
.cta-band p{color:rgba(255,255,255,.88);margin-top:12px;font-size:15px;max-width:620px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* 页脚 */
.site-footer{position:relative;margin-top:96px;background:var(--ink);color:rgba(255,255,255,.72);padding:72px 0 0}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--grad)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:800;margin-bottom:16px}
.site-footer p{font-size:14px;color:rgba(255,255,255,.62);max-width:360px}
.footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px;letter-spacing:.04em}
.footer-links{display:flex;flex-direction:column;gap:12px;font-size:14px}
.footer-links a{color:rgba(255,255,255,.66);transition:color .2s ease,transform .2s ease;display:inline-block}
.footer-links a:hover{color:var(--brand-2);transform:translateX(3px)}
.footer-bottom{margin-top:56px;border-top:1px solid rgba(255,255,255,.10);padding:24px 0;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.48)}
.to-top{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:var(--r-pill);border:1px solid rgba(255,255,255,.18);color:rgba(255,255,255,.78);transition:background .2s ease,color .2s ease}
.to-top:hover{background:rgba(255,255,255,.10);color:#fff}

/* 响应式 */
@media (max-width:1024px){
  .section{padding:64px 0}
  .spotlight{grid-template-columns:1fr}
  .list-grid{grid-template-columns:1fr 1fr}
  .mini-list{grid-column:1 / -1}
  .news-grid{grid-template-columns:1fr}
  .data-row{grid-template-columns:repeat(2,1fr)}
  .voice-row{grid-template-columns:1fr}
  .cta-band{grid-template-columns:1fr;padding:44px 32px}
  .dark-band{padding:48px 32px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:1023px){
  .nav-left{display:none}
  .nav-right{gap:0}
  .nav-right .nav-link,.nav-right .btn{display:none}
  .nav-toggle{display:inline-flex}
  .nav-inner{grid-template-columns:1fr auto 1fr}
  .brand{grid-column:2;justify-self:center}
  .nav-right{grid-column:3}
}
@media (max-width:768px){
  .hero{min-height:72vh}
  .hero-inner{padding:88px 0 72px}
  .hero-stats{gap:10px}
  .rail>.media-card{flex:0 0 78vw}
  .rank-item{grid-template-columns:40px 76px 1fr;gap:12px}
  .rank-thumb{width:76px;height:54px}
  .rank-item .chip{display:none}
  .list-grid{grid-template-columns:1fr}
  .data-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .news-item{grid-template-columns:96px 1fr}
  .news-thumb{width:96px;height:68px}
}
@media (max-width:520px){
  .section{padding:48px 0}
  .container{width:92%}
  .hero-actions .btn{width:100%}
  .stat{padding:7px 13px}
  .stat b{font-size:16px}
  .card-body{padding:16px 16px 20px}
  .cta-band{padding:34px 22px;border-radius:24px}
  .dark-band{padding:36px 22px;border-radius:24px}
  .faq-item summary{padding:16px 18px;font-size:15px}
  .faq-body{padding:0 18px 18px}
  .site-footer{padding-top:56px}
}

/* roulang page: article */
:root{
  --ink:#0D0E16;
  --ink-2:#15172260;
  --bg:#F5F6FA;
  --surface:#FFFFFF;
  --text:#12131A;
  --muted:#6B7280;
  --line:rgba(18,19,26,.10);
  --primary:#6C4DFF;
  --accent:#18E0B8;
  --coral:#FF7A45;
  --grad:linear-gradient(135deg,#6C4DFF 0%,#18E0B8 100%);
  --grad-soft:linear-gradient(135deg,rgba(108,77,255,.12),rgba(24,224,184,.12));
  --radius-lg:32px;
  --radius:24px;
  --radius-sm:12px;
  --shadow:0 16px 40px rgba(13,14,22,.10);
  --shadow-hover:0 22px 54px rgba(13,14,22,.16);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",sans-serif;
  --num:"DIN Alternate","Barlow Condensed","PingFang SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.25;letter-spacing:-.01em;color:var(--text);}
p{margin:0 0 1.1em;}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background .2s ease;}
ul,ol{list-style:none;margin:0;padding:0;}
img{max-width:100%;display:block;border:0;}
button{font-family:inherit;cursor:pointer;background:none;border:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{font-size:clamp(24px,3.2vw,38px);}
.section-head p{color:var(--muted);font-size:16px;margin:14px 0 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--primary);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:3px;border-radius:3px;background:var(--grad);}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(13,14,22,.92);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{background:rgba(13,14,22,.98);box-shadow:0 14px 34px rgba(13,14,22,.38);}
.header-inner{
  max-width:1240px;margin:0 auto;padding:0 24px;
  height:80px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px;
}
.nav-left,.nav-right{display:flex;align-items:center;gap:4px;}
.nav-left{justify-content:flex-start;}
.nav-right{justify-content:flex-end;}
.nav-link{
  position:relative;display:inline-block;
  color:#C6C9D6;font-size:15px;font-weight:500;
  padding:8px 12px;border-radius:10px;white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-link::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 .25s ease;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.06);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:#fff;}
.nav-link.is-active::after{transform:scaleX(1);}
.brand{display:flex;align-items:center;gap:10px;justify-self:center;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background:var(--grad);
  display:grid;place-items:center;color:#fff;font-size:15px;font-weight:800;
  box-shadow:0 8px 20px rgba(108,77,255,.35);flex:0 0 auto;
}
.brand-text{color:#fff;font-size:19px;font-weight:800;letter-spacing:.02em;white-space:nowrap;}
.nav-right .btn{margin-left:8px;}
.menu-toggle{
  display:none;width:40px;height:40px;border-radius:12px;
  border:1px solid rgba(255,255,255,.18);color:#fff;
  align-items:center;justify-content:center;grid-column:3;justify-self:end;
}
.menu-toggle span{display:block;width:16px;height:2px;background:#fff;border-radius:2px;position:relative;}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:#fff;border-radius:2px;
}
.menu-toggle span::before{top:-5px;}
.menu-toggle span::after{top:5px;}
.mobile-menu{
  display:none;background:rgba(13,14,22,.98);
  border-top:1px solid rgba(255,255,255,.08);
  padding:14px 24px 24px;
}
.mobile-menu.is-open{display:block;}
.mobile-menu a{display:block;color:#D3D6E2;font-size:15px;padding:13px 2px;border-bottom:1px solid rgba(255,255,255,.06);}
.mobile-menu a:hover{color:var(--accent);}
.mobile-menu .btn{width:100%;margin-top:18px;border-bottom:0;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:12px;border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;
  padding:12px 22px;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 26px rgba(108,77,255,.28);}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 18px 34px rgba(108,77,255,.4);}
.btn-primary:active{transform:scale(.98);}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.34);color:#fff;}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:var(--accent);color:#fff;}
.btn-outline{background:transparent;border-color:var(--line);color:var(--text);}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);background:rgba(108,77,255,.06);}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:10px;}

/* ---------- Article hero ---------- */
.article-hero{
  position:relative;overflow:hidden;color:#fff;
  padding:52px 0 76px;
  background:
    radial-gradient(120% 110% at 12% 0%,rgba(108,77,255,.42),transparent 62%),
    radial-gradient(110% 100% at 92% 6%,rgba(24,224,184,.24),transparent 60%),
    #0D0E16;
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;opacity:.20;
}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(13,14,22,.62) 0%,rgba(13,14,22,.94) 100%);
}
.article-hero .container{position:relative;z-index:2;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:rgba(255,255,255,.58);margin-bottom:20px;
}
.breadcrumb a{color:rgba(255,255,255,.76);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{opacity:.45;}
.breadcrumb .current{color:rgba(255,255,255,.86);}
.cat-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 15px;border-radius:999px;
  font-size:13px;font-weight:700;color:#fff;
  background:linear-gradient(135deg,rgba(108,77,255,.95),rgba(24,224,184,.85));
  box-shadow:0 8px 20px rgba(108,77,255,.3);
}
.article-title{
  font-size:clamp(28px,4.2vw,46px);line-height:1.28;
  color:#fff;margin:18px 0 20px;max-width:960px;
}
.meta-row{display:flex;flex-wrap:wrap;gap:10px 24px;font-size:14px;color:rgba(255,255,255,.68);}
.meta-row span{display:inline-flex;align-items:center;gap:8px;}
.meta-dot{width:6px;height:6px;border-radius:50%;background:var(--accent);flex:0 0 auto;}

/* ---------- Cover ---------- */
.cover-wrap{position:relative;z-index:6;margin-top:-56px;}
.article-cover{margin:0;}
.article-cover img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:var(--radius-lg);box-shadow:var(--shadow);
  background:var(--grad-soft);
}
.article-cover figcaption{
  margin-top:12px;font-size:13px;color:var(--muted);text-align:center;
}

/* ---------- Article layout ---------- */
.article-main{padding:56px 0 96px;}
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 286px;
  gap:40px;align-items:start;
}
.article-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);box-shadow:var(--shadow);
  padding:clamp(24px,4vw,56px);
}
.article-body{max-width:820px;font-size:16.5px;line-height:1.9;color:#1D1E27;}
.article-body > *:first-child{margin-top:0;}
.article-body h2{
  font-size:clamp(22px,2.6vw,28px);margin:2em 0 .8em;
  padding-left:14px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;
  border-radius:4px;background:var(--grad);
}
.article-body h3{font-size:20px;font-weight:700;margin:1.7em 0 .6em;}
.article-body h4{font-size:17px;font-weight:700;margin:1.4em 0 .5em;}
.article-body p{margin:0 0 1.2em;}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:1.5em;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:.55em;}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(108,77,255,.35);}
.article-body a:hover{color:var(--coral);border-color:var(--coral);}
.article-body img{border-radius:16px;margin:1.5em 0;}
.article-body blockquote{
  background:var(--bg);border-left:3px solid var(--accent);
  border-radius:16px;padding:18px 24px;margin:1.6em 0;color:#3B3D4A;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left;}
.article-body th{background:var(--bg);font-weight:700;}
.article-body pre{
  background:#0D0E16;color:#E7E8F2;border-radius:16px;
  padding:18px 20px;overflow:auto;margin:1.5em 0;font-size:14px;line-height:1.7;
}
.article-body code{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.92em;}
.article-body hr{border:0;border-top:1px dashed var(--line);margin:2.2em 0;}

/* ---------- TOC ---------- */
.toc-side{position:sticky;top:104px;}
.toc-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow);padding:22px;
}
.toc-card h4{font-size:15px;font-weight:700;margin-bottom:14px;}
.toc-list li{margin-bottom:8px;}
.toc-list a{
  display:block;font-size:14px;line-height:1.65;color:var(--muted);
  padding-left:11px;border-left:2px solid transparent;
}
.toc-list a:hover{color:var(--primary);border-color:var(--primary);}
.toc-note{
  margin-top:16px;padding-top:16px;border-top:1px dashed var(--line);
  font-size:13px;color:var(--muted);line-height:1.75;
}

/* ---------- Tags & back ---------- */
.tag-row{
  display:flex;flex-wrap:wrap;gap:10px;align-items:center;
  margin-top:38px;padding-top:26px;border-top:1px dashed var(--line);
}
.tag-row .tag-label{font-size:13px;font-weight:700;color:var(--muted);margin-right:4px;}
.tag{
  display:inline-flex;padding:7px 14px;border-radius:999px;
  background:var(--bg);border:1px solid var(--line);
  font-size:13px;color:var(--muted);
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.tag:hover{color:var(--primary);border-color:rgba(108,77,255,.45);background:rgba(108,77,255,.07);}
.back-row{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- Empty state ---------- */
.empty-state{
  text-align:center;padding:56px 20px;
  border:1px dashed var(--line);border-radius:var(--radius);
  background:var(--bg);
}
.empty-state h2{font-size:24px;margin-bottom:12px;}
.empty-state p{color:var(--muted);max-width:520px;margin:0 auto 22px;}

/* ---------- Related ---------- */
.related{background:#fff;border-top:1px solid var(--line);}
.related-grid{
  display:grid;grid-template-columns:1.35fr 1fr;gap:24px;
}
.rcard{
  display:block;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);
  transition:transform .24s ease,box-shadow .24s ease;
}
.rcard:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.rcard-media{position:relative;overflow:hidden;background:var(--grad-soft);}
.rcard-media img{width:100%;transition:transform .26s ease;}
.rcard:hover .rcard-media img{transform:scale(1.04);}
.rcard-lg{grid-row:span 2;}
.rcard-lg .rcard-media img{aspect-ratio:16/10;object-fit:cover;}
.rcard-sm{display:grid;grid-template-columns:154px minmax(0,1fr);}
.rcard-sm .rcard-media{height:100%;}
.rcard-sm .rcard-media img{height:100%;min-height:126px;object-fit:cover;}
.rcard-body{padding:20px 22px;}
.rcard-body h3{font-size:18px;line-height:1.45;margin-bottom:10px;}
.rcard-lg .rcard-body h3{font-size:21px;}
.rcard-body p{font-size:14px;color:var(--muted);line-height:1.75;margin:0 0 12px;}
.meta-line{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--muted);}
.meta-line i{width:4px;height:4px;border-radius:50%;background:rgba(18,19,26,.22);}
.badge{
  position:absolute;left:12px;top:12px;z-index:2;
  padding:4px 11px;border-radius:999px;font-size:12px;font-weight:600;
  color:var(--accent);background:rgba(13,14,22,.72);
  backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);
}
.badge.coral{color:var(--coral);}

/* ---------- FAQ ---------- */
.faq-wrap{background:var(--bg);}
.faq-inner{max-width:920px;margin:0 auto;}
ul.faq-accordion.accordion{border:0;background:transparent;margin:0;}
.faq-accordion .accordion-item{
  border:1px solid var(--line);border-radius:16px;overflow:hidden;
  background:var(--surface);margin-bottom:14px;
  box-shadow:0 6px 18px rgba(13,14,22,.04);
}
.faq-accordion .accordion-item:last-child{margin-bottom:0;}
.faq-accordion .accordion-title{
  font-size:16px;font-weight:600;color:var(--text);
  background:var(--surface);border:0;
  padding:19px 52px 19px 50px;line-height:1.6;
}
.faq-accordion .accordion-title:hover{color:var(--primary);}
.faq-accordion .accordion-title::before{
  content:"+";position:absolute;right:20px;left:auto;top:50%;
  transform:translateY(-50%);margin:0;
  font-size:20px;font-weight:400;color:var(--primary);line-height:1;
}
.faq-accordion .accordion-item.is-active .accordion-title::before{content:"−";}
.faq-accordion .accordion-title::after{
  content:"问";position:absolute;left:18px;top:50%;transform:translateY(-50%);
  width:20px;height:20px;border-radius:6px;background:rgba(108,77,255,.12);
  color:var(--primary);font-size:12px;font-weight:700;
  display:grid;place-items:center;line-height:1;
}
.faq-accordion .accordion-content{
  background:var(--surface);border-top:1px dashed var(--line);
  padding:0 22px 20px 50px;color:var(--muted);font-size:15px;line-height:1.85;
}
.faq-accordion .accordion-content p{margin:16px 0 0;}

/* ---------- CTA ---------- */
.cta-section{padding:0 0 96px;}
.cta-band{
  position:relative;overflow:hidden;text-align:center;color:#fff;
  border-radius:var(--radius-lg);padding:clamp(38px,6vw,74px) clamp(22px,5vw,64px);
  background:linear-gradient(135deg,#6C4DFF 0%,#18E0B8 100%);
  box-shadow:0 26px 60px rgba(108,77,255,.28);
}
.cta-band::before,.cta-band::after{
  content:"";position:absolute;border-radius:50%;background:rgba(255,255,255,.16);
}
.cta-band::before{width:320px;height:320px;right:-110px;top:-140px;}
.cta-band::after{width:220px;height:220px;left:-90px;bottom:-120px;background:rgba(13,14,22,.14);}
.cta-band h2{position:relative;z-index:2;font-size:clamp(24px,3.4vw,38px);color:#fff;}
.cta-band p{position:relative;z-index:2;max-width:640px;margin:16px auto 28px;color:rgba(255,255,255,.9);font-size:16px;}
.cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}
.cta-band .btn-outline{border-color:rgba(255,255,255,.6);color:#fff;}
.cta-band .btn-outline:hover{background:rgba(255,255,255,.16);border-color:#fff;color:#fff;}

/* ---------- Footer ---------- */
.site-footer{
  position:relative;background:#0D0E16;color:#9BA0B0;
  padding:72px 0 0;font-size:14px;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--grad);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:44px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:11px;font-size:14px;}
.footer-brand .brand-text{color:#fff;font-size:18px;}
.footer-desc{color:#8B90A1;line-height:1.85;max-width:400px;margin:0;}
.footer-grid h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px;}
.footer-links li{margin-bottom:11px;}
.footer-links a{color:#9BA0B0;}
.footer-links a:hover{color:var(--accent);}
.footer-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;align-items:center;
  font-size:13px;color:#767B8C;
}
.footer-bottom a{color:#8B90A1;}
.footer-bottom a:hover{color:var(--accent);}

/* ---------- To top ---------- */
.to-top{
  position:fixed;right:24px;bottom:28px;z-index:110;
  width:46px;height:46px;border-radius:14px;
  background:var(--grad);color:#fff;
  display:grid;place-items:center;font-size:18px;font-weight:700;
  box-shadow:0 12px 26px rgba(108,77,255,.35);
  opacity:0;pointer-events:none;
  transition:opacity .25s ease,transform .25s ease;
}
.to-top.is-visible{opacity:1;pointer-events:auto;}
.to-top:hover{transform:translateY(-3px);color:#fff;}

/* ---------- Responsive ---------- */
@media (max-width:1023px){
  .nav-left,.nav-right{display:none;}
  .header-inner{grid-template-columns:40px 1fr 40px;height:68px;gap:8px;}
  .brand{grid-column:2;justify-self:center;}
  .menu-toggle{display:flex;}
  .article-layout{grid-template-columns:1fr;gap:28px;}
  .toc-side{position:static;order:-1;}
  .section{padding:64px 0;}
  .related-grid{grid-template-columns:1fr;}
  .rcard-lg{grid-row:auto;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .footer-grid > div:first-child{grid-column:1 / -1;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .header-inner{padding:0 18px;}
  .brand-text{font-size:17px;}
  .article-hero{padding:36px 0 60px;}
  .article-title{font-size:clamp(24px,6.6vw,30px);}
  .cover-wrap{margin-top:-36px;}
  .article-main{padding:36px 0 64px;}
  .article-card{border-radius:var(--radius);padding:22px 18px;}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
  .rcard-sm{grid-template-columns:1fr;}
  .rcard-sm .rcard-media img{min-height:0;aspect-ratio:16/9;}
  .cta-section{padding:0 0 64px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .site-footer{padding-top:52px;}
  .footer-bottom{justify-content:flex-start;}
  .to-top{right:16px;bottom:18px;width:42px;height:42px;}
}
@media (max-width:520px){
  .article-title{font-size:23px;}
  .faq-accordion .accordion-title{padding:16px 46px 16px 46px;font-size:15px;}
  .faq-accordion .accordion-content{padding:0 18px 18px 46px;}
}

/* roulang page: category1 */
:root{
  --purple:#6C4DFF;
  --mint:#18E0B8;
  --coral:#FF7A45;
  --ink:#0D0E16;
  --ink-2:#151827;
  --paper:#F5F6FA;
  --white:#ffffff;
  --text:#12131A;
  --muted:#6B7280;
  --line:rgba(18,19,26,.10);
  --grad:linear-gradient(135deg,#6C4DFF 0%,#18E0B8 100%);
  --grad-soft:linear-gradient(135deg,rgba(108,77,255,.12),rgba(24,224,184,.12));
  --r-sm:12px;
  --r-card:24px;
  --r-block:32px;
  --sh:0 16px 40px rgba(13,14,22,.10);
  --sh-hover:0 22px 54px rgba(13,14,22,.16);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --num:"DIN Alternate","Barlow Condensed","PingFang SC",sans-serif;
  --sec-y:96px;
  --container:1200px;
}
@media (max-width:1024px){ :root{ --sec-y:64px; } }
@media (max-width:640px){ :root{ --sec-y:48px; } }

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--paper);
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,p,ul,ol,figure{ margin:0; padding:0; }
ul,ol{ list-style:none; }
a{ color:inherit; text-decoration:none; transition:color .2s ease; }
img{ max-width:100%; display:block; border:0; }
button{ font:inherit; color:inherit; background:none; border:0; cursor:pointer; }
input,textarea,select{ font:inherit; }
:focus-visible{ outline:2px solid var(--mint); outline-offset:2px; border-radius:6px; }
.container{ width:100%; max-width:var(--container); margin:0 auto; padding:0 24px; }
@media (max-width:640px){ .container{ padding:0 16px; } }
.section{ padding:var(--sec-y) 0; }
.section-alt{ background:linear-gradient(180deg,#ffffff 0%,var(--paper) 100%); }
.section-dark{ background:var(--ink); color:#fff; }

/* ============ 导航 ============ */
.site-header{
  position:sticky; top:0; z-index:80;
  background:rgba(13,14,22,.88);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:box-shadow .25s ease, background .25s ease;
}
.site-header.is-stuck{ background:rgba(13,14,22,.97); box-shadow:0 14px 34px rgba(13,14,22,.38); }
.header-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  min-height:78px;
}
.nav-left{ display:flex; align-items:center; gap:6px; justify-self:start; }
.nav-right{ display:flex; align-items:center; gap:6px; justify-self:end; }
.nav-link{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:14px;
  font-weight:500;
  color:rgba(255,255,255,.72);
  border-radius:10px;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:12px; right:12px; bottom:2px;
  height:2px;
  border-radius:999px;
  background:linear-gradient(90deg,var(--mint),var(--purple));
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .22s ease;
}
.nav-link:hover{ color:#fff; }
.nav-link:hover::after{ transform:scaleX(1); }
.nav-link.is-active{ color:#fff; font-weight:700; }
.nav-link.is-active::after{ transform:scaleX(1); }
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  justify-self:center;
  color:#fff;
  font-weight:800;
  letter-spacing:.01em;
}
.brand-mark{
  display:grid;
  grid-template-columns:repeat(2,7px);
  grid-template-rows:repeat(2,7px);
  gap:3px;
}
.brand-mark i{ display:block; border-radius:2px; background:var(--grad); }
.brand-mark i:nth-child(2){ background:var(--mint); }
.brand-mark i:nth-child(3){ background:var(--purple); }
.brand-mark i:nth-child(4){ background:linear-gradient(135deg,#18E0B8,#FF7A45); }
.brand-text{ font-size:19px; white-space:nowrap; }
.nav-cta{ margin-left:8px; }
.menu-toggle{
  display:none;
  width:44px; height:44px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.22);
  align-items:center; justify-content:center;
  flex-direction:column; gap:5px;
}
.menu-toggle span{ display:block; width:18px; height:2px; border-radius:2px; background:#fff; transition:.2s ease; }
.site-header.is-open .menu-toggle span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.site-header.is-open .menu-toggle span:nth-child(2){ opacity:0; }
.site-header.is-open .menu-toggle span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 28px;
  border-radius:var(--r-sm);
  border:1px solid transparent;
  font-size:15px;
  font-weight:700;
  letter-spacing:.02em;
  transition:transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
}
.btn-primary{ background:var(--grad); color:#fff; box-shadow:0 12px 28px rgba(108,77,255,.32); }
.btn-primary:hover{ transform:translateY(-2px); box-shadow:0 18px 40px rgba(108,77,255,.42); color:#fff; }
.btn-primary:active{ transform:translateY(0) scale(.98); }
.btn-ghost{ border-color:rgba(255,255,255,.36); color:#fff; background:rgba(255,255,255,.05); }
.btn-ghost:hover{ background:rgba(255,255,255,.14); transform:translateY(-2px); color:#fff; }
.btn-ghost:active{ transform:translateY(0) scale(.98); }
.btn-outline{ border-color:rgba(108,77,255,.45); color:var(--purple); background:#fff; }
.btn-outline:hover{ background:var(--grad-soft); transform:translateY(-2px); color:var(--purple); }
.btn-outline:active{ transform:translateY(0) scale(.98); }
.btn-light{ background:#fff; color:var(--ink); box-shadow:0 12px 28px rgba(13,14,22,.18); }
.btn-light:hover{ transform:translateY(-2px); box-shadow:0 20px 40px rgba(13,14,22,.26); color:var(--ink); }
.btn-sm{ padding:10px 18px; font-size:13.5px; border-radius:10px; }

/* ============ Hero ============ */
.hero{
  position:relative;
  display:flex;
  align-items:center;
  min-height:56vh;
  padding:100px 0 84px;
  background:var(--ink);
  overflow:hidden;
}
.hero-bg{
  position:absolute; inset:0;
  background-size:cover;
  background-position:center;
  opacity:.58;
}
.hero-veil{
  position:absolute; inset:0;
  background:linear-gradient(180deg,rgba(13,14,22,.70) 0%,rgba(13,14,22,.88) 58%,#0D0E16 100%);
}
.hero-inner{ position:relative; z-index:2; color:#fff; }
.crumbs{ display:flex; flex-wrap:wrap; align-items:center; gap:8px; font-size:13px; color:rgba(255,255,255,.58); margin-bottom:20px; }
.crumbs a:hover{ color:var(--mint); }
.crumbs em{ font-style:normal; color:var(--mint); font-weight:600; }
.hero-title{
  font-size:clamp(30px,5vw,56px);
  font-weight:800;
  line-height:1.16;
  letter-spacing:-.02em;
  max-width:16em;
}
.hero-title span{
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-sub{
  margin-top:22px;
  max-width:720px;
  font-size:16px;
  line-height:1.9;
  color:rgba(255,255,255,.76);
}
.hero-badges{ display:flex; flex-wrap:wrap; gap:10px; margin-top:28px; }
.hero-actions{ display:flex; flex-wrap:wrap; gap:14px; margin-top:34px; }

/* ============ 徽章 ============ */
.data-badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 13px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  line-height:1.7;
  letter-spacing:.01em;
  background:rgba(13,14,22,.58);
  color:var(--mint);
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
  border:1px solid rgba(255,255,255,.10);
}
.data-badge.tone-mint{ color:var(--mint); }
.data-badge.tone-coral{ color:var(--coral); }
.data-badge.on-media{ position:absolute; top:12px; left:12px; z-index:2; }
.data-badge.tone-plain{ color:#fff; }

/* ============ 板块标题 ============ */
.section-head{ max-width:780px; margin-bottom:44px; }
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--purple);
}
.eyebrow::before{
  content:"";
  width:28px; height:3px;
  border-radius:999px;
  background:var(--grad);
}
.section-title{
  margin-top:14px;
  font-size:clamp(24px,3.2vw,38px);
  font-weight:800;
  line-height:1.32;
  letter-spacing:-.01em;
}
.section-desc{ margin-top:16px; font-size:15px; color:var(--muted); }

/* ============ 卡片 ============ */
.card{
  display:flex;
  flex-direction:column;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh);
  overflow:hidden;
  transition:transform .24s ease, box-shadow .24s ease, border-color .24s ease;
  height:100%;
}
.card:hover{ transform:translateY(-4px); box-shadow:var(--sh-hover); border-color:rgba(108,77,255,.25); }
.card-media{
  position:relative;
  display:block;
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--grad-soft);
}
.card-media img{ width:100%; height:100%; object-fit:cover; transition:transform .26s ease; }
.card:hover .card-media img{ transform:scale(1.04); }
.card-body{ display:flex; flex-direction:column; gap:10px; padding:20px 22px 22px; flex:1; }
.card-title{ font-size:19px; font-weight:700; line-height:1.5; }
.card-title a{ display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
.card-title a:hover{ color:var(--purple); }
.card-text{ font-size:14.5px; color:var(--muted); display:-webkit-box; -webkit-line-clamp:3; -webkit-box-orient:vertical; overflow:hidden; }
.card-meta{ display:flex; align-items:center; flex-wrap:wrap; gap:10px; margin-top:auto; padding-top:6px; font-size:13px; color:var(--muted); }
.card-meta i{ width:4px; height:4px; border-radius:50%; background:currentColor; opacity:.45; }
.card-feature .card-media{ aspect-ratio:16/9.6; }
.card-feature .card-title{ font-size:24px; }
.card-feature .card-text{ font-size:15px; -webkit-line-clamp:4; }
.card-wide{ flex-direction:row; align-items:stretch; }
.card-wide .card-media{ flex:0 0 40%; aspect-ratio:auto; }
@media (max-width:640px){
  .card-wide{ flex-direction:column; }
  .card-wide .card-media{ flex:none; aspect-ratio:16/9; }
}

.featured-stack{ display:grid; gap:24px; grid-template-rows:1fr 1fr; height:100%; }
.featured-stack .card-media{ aspect-ratio:16/7; }
@media (max-width:1024px){ .featured-stack{ grid-template-rows:auto auto; } }

/* ============ 筛选胶囊 ============ */
.filter-row{ display:flex; flex-wrap:wrap; gap:10px; margin-bottom:34px; }
.filter-pill{
  padding:9px 20px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  font-size:14px;
  font-weight:600;
  color:var(--muted);
  transition:color .2s ease, border-color .2s ease, background .2s ease, box-shadow .2s ease, transform .2s ease;
}
.filter-pill:hover{ color:var(--purple); border-color:rgba(108,77,255,.42); transform:translateY(-1px); }
.filter-pill.is-active{
  background:var(--grad);
  color:#fff;
  border-color:transparent;
  box-shadow:0 10px 24px rgba(108,77,255,.28);
}

/* ============ 横滑片库 ============ */
.rail-wrap{ position:relative; }
.rail{
  display:flex;
  gap:20px;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  padding:6px 4px 20px;
  scrollbar-width:none;
}
.rail::-webkit-scrollbar{ display:none; }
.rail-card{ flex:0 0 300px; scroll-snap-align:start; }
@media (max-width:1024px){ .rail-card{ flex:0 0 268px; } }
@media (max-width:640px){ .rail-card{ flex:0 0 78vw; } }
.rail-nav{ display:flex; align-items:center; gap:16px; margin-top:10px; }
.rail-track{ flex:1; height:4px; border-radius:999px; background:rgba(18,19,26,.10); overflow:hidden; }
.rail-bar{ height:100%; width:22%; border-radius:999px; background:var(--grad); transition:width .15s linear; }
.rail-btn{
  width:44px; height:44px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--text);
  display:inline-flex; align-items:center; justify-content:center;
  box-shadow:var(--sh);
  transition:transform .2s ease, color .2s ease, border-color .2s ease;
}
.rail-btn:hover{ transform:translateY(-2px); color:var(--purple); border-color:rgba(108,77,255,.42); }
.rail-btn:active{ transform:translateY(0) scale(.96); }

/* ============ 入口类型卡片 ============ */
.type-card{
  display:flex;
  flex-direction:column;
  height:100%;
  padding:28px 24px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh);
  transition:transform .24s ease, box-shadow .24s ease, border-color .24s ease;
}
.type-card:hover{ transform:translateY(-4px); box-shadow:var(--sh-hover); border-color:rgba(108,77,255,.28); }
.type-icon{
  display:flex; align-items:center; justify-content:center;
  width:48px; height:48px;
  border-radius:14px;
  background:var(--grad-soft);
  color:var(--purple);
  font-size:19px;
  margin-bottom:18px;
}
.type-card h3{ font-size:18px; font-weight:700; }
.type-card p{ margin-top:10px; font-size:14.5px; color:var(--muted); }

/* ============ 步骤流程 ============ */
.steps{ display:grid; gap:22px; grid-template-columns:repeat(3,1fr); }
@media (max-width:900px){ .steps{ grid-template-columns:1fr; } }
.step{
  position:relative;
  padding:32px 28px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh);
  transition:transform .24s ease, box-shadow .24s ease;
}
.step:hover{ transform:translateY(-4px); box-shadow:var(--sh-hover); }
.step-num{
  font-family:var(--num);
  font-size:42px;
  font-weight:800;
  line-height:1;
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.step h3{ margin-top:16px; font-size:19px; font-weight:700; }
.step p{ margin-top:10px; font-size:14.5px; color:var(--muted); }

/* ============ 评价 ============ */
.quote{
  display:flex;
  flex-direction:column;
  gap:18px;
  height:100%;
  padding:28px 26px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh);
  transition:transform .24s ease, box-shadow .24s ease;
}
.quote:hover{ transform:translateY(-4px); box-shadow:var(--sh-hover); }
.quote-stars{ color:var(--coral); font-size:13px; letter-spacing:2px; }
.quote p{ font-size:15px; color:var(--text); }
.quote-foot{ margin-top:auto; display:flex; align-items:center; gap:12px; padding-top:6px; }
.quote-avatar{
  width:40px; height:40px;
  border-radius:999px;
  background:var(--grad);
  color:#fff;
  font-weight:700;
  font-size:14px;
  display:flex; align-items:center; justify-content:center;
  flex:0 0 40px;
}
.quote-name{ font-size:14px; font-weight:700; }
.quote-role{ font-size:12.5px; color:var(--muted); }

/* ============ FAQ ============ */
.faq-list{ display:grid; gap:12px; max-width:940px; }
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:16px;
  overflow:hidden;
  transition:border-color .2s ease, box-shadow .2s ease;
}
.faq-item.is-open{ border-color:rgba(108,77,255,.36); box-shadow:var(--sh); }
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  width:100%;
  padding:18px 22px;
  text-align:left;
  font-size:16px;
  font-weight:700;
  color:var(--text);
}
.faq-q:hover{ color:var(--purple); }
.faq-icon{ position:relative; flex:0 0 22px; width:22px; height:22px; }
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--purple);
  border-radius:2px;
  transition:transform .2s ease, opacity .2s ease;
}
.faq-icon::before{ left:0; top:10px; width:22px; height:2px; }
.faq-icon::after{ left:10px; top:0; width:2px; height:22px; }
.faq-item.is-open .faq-icon::after{ transform:rotate(90deg); opacity:0; }
.faq-a{ max-height:0; overflow:hidden; transition:max-height .25s ease; }
.faq-a p{ padding:0 22px 20px; font-size:15px; color:var(--muted); }

/* ============ CTA ============ */
.cta-band{
  position:relative;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  padding:56px 52px;
  border-radius:var(--r-block);
  color:#fff;
  overflow:hidden;
  background-image:linear-gradient(135deg,rgba(108,77,255,.94) 0%,rgba(24,224,184,.90) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  box-shadow:0 24px 56px rgba(108,77,255,.30);
}
.cta-band h2{ font-size:clamp(22px,3vw,34px); font-weight:800; line-height:1.34; letter-spacing:-.01em; }
.cta-band p{ margin-top:14px; font-size:15px; color:rgba(255,255,255,.88); max-width:620px; }
.cta-actions{ display:flex; flex-wrap:wrap; gap:14px; }
@media (max-width:640px){ .cta-band{ padding:38px 24px; border-radius:24px; } }

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  background:var(--ink);
  color:rgba(255,255,255,.70);
  padding:68px 0 26px;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0; left:0; right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,var(--purple),var(--mint),transparent);
}
.footer-brand .brand{ justify-self:start; }
.footer-brand p{ margin-top:18px; font-size:14px; line-height:1.9; max-width:320px; color:rgba(255,255,255,.62); }
.footer-title{ font-size:15px; font-weight:700; color:#fff; margin-bottom:18px; }
.footer-links{ display:grid; gap:12px; }
.footer-links a{ font-size:14px; color:rgba(255,255,255,.68); }
.footer-links a:hover{ color:var(--mint); }
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  margin-top:52px;
  padding-top:24px;
  border-top:1px solid rgba(255,255,255,.10);
  font-size:13px;
  color:rgba(255,255,255,.55);
}
.to-top{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 16px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.22);
  color:rgba(255,255,255,.78);
  font-size:13px;
  transition:color .2s ease, border-color .2s ease, transform .2s ease;
}
.to-top:hover{ color:var(--mint); border-color:var(--mint); transform:translateY(-2px); }
.footer-grid > .cell{ margin-bottom:36px; }

/* ============ 移动端导航 ============ */
@media (max-width:1023px){
  .header-inner{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    position:relative;
    min-height:68px;
  }
  .brand{ order:1; position:absolute; left:50%; top:34px; transform:translate(-50%,-50%); }
  .menu-toggle{ display:inline-flex; order:2; margin-left:auto; }
  .nav-left,.nav-right{ display:none; }
  .site-header.is-open .nav-left,
  .site-header.is-open .nav-right{
    display:flex;
    flex-direction:column;
    align-items:stretch;
    gap:2px;
    width:100%;
    order:3;
    padding:10px 0 0;
  }
  .site-header.is-open .nav-right{ padding-bottom:14px; }
  .site-header.is-open .nav-link{ padding:13px 10px; font-size:15px; border-radius:12px; color:rgba(255,255,255,.80); }
  .site-header.is-open .nav-link::after{ display:none; }
  .site-header.is-open .nav-link.is-active{ background:rgba(255,255,255,.06); color:#fff; }
  .site-header.is-open .nav-cta{ margin:10px 0 0; width:100%; }
}
@media (max-width:640px){
  .hero{ padding:84px 0 64px; min-height:52vh; }
  .hero-actions .btn{ width:100%; }
  .brand-text{ font-size:17px; }
  .section-head{ margin-bottom:32px; }
  .type-card,.step,.quote{ padding:24px 20px; }
  .quote{ padding:24px 20px; }
  .rail-btn{ width:40px; height:40px; }
}

/* roulang page: category2 */
:root{
  --brand-purple:#6C4DFF;
  --brand-teal:#18E0B8;
  --brand-coral:#FF7A45;
  --ink:#0D0E16;
  --paper:#F5F6FA;
  --text:#12131A;
  --muted:#6B7280;
  --line:rgba(18,19,26,.10);
  --grad:linear-gradient(135deg,#6C4DFF 0%,#18E0B8 100%);
  --grad-soft:linear-gradient(135deg,rgba(108,77,255,.12) 0%,rgba(24,224,184,.12) 100%);
  --radius-card:24px;
  --radius-block:32px;
  --radius-btn:12px;
  --shadow:0 16px 40px rgba(13,14,22,.10);
  --shadow-hover:0 22px 54px rgba(13,14,22,.16);
  --space-section:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{margin:0;font-weight:800;line-height:1.28;letter-spacing:-.01em}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
a{color:inherit;text-decoration:none;transition:color .2s ease,background .2s ease,border-color .2s ease}
img{max-width:100%;display:block;border:0}
button,input,select{font-family:inherit;font-size:inherit}
button{cursor:pointer;border:0;background:none;color:inherit}
ul{margin:0;padding:0;list-style:none}
::selection{background:rgba(108,77,255,.22)}
:focus-visible{outline:2px solid var(--brand-teal);outline-offset:3px}
.numbers{font-family:"DIN Alternate","Barlow Condensed",sans-serif}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.container-narrow{max-width:960px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 28px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;white-space:nowrap;
  transition:transform .2s ease,box-shadow .24s ease,background .24s ease,color .24s ease,border-color .24s ease;
}
.btn i{font-size:13px}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 28px rgba(108,77,255,.34)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 42px rgba(108,77,255,.44);color:#fff}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.32);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.14);transform:translateY(-2px);color:#fff}
.btn-outline{background:#fff;border-color:var(--line);color:var(--text)}
.btn-outline:hover{border-color:var(--brand-purple);color:var(--brand-purple);transform:translateY(-2px)}
.btn-sm{padding:9px 18px;font-size:14px;border-radius:10px}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1.6;
  background:rgba(13,14,22,.74);color:var(--brand-teal);
  backdrop-filter:blur(4px);
}
.badge-coral{color:var(--brand-coral)}
.badge-purple{color:#C9BCFF}
.badge-light{background:rgba(108,77,255,.10);color:var(--brand-purple);backdrop-filter:none}
.badge-line{background:transparent;border:1px solid var(--line);color:var(--muted)}
.tag{display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600;background:var(--grad-soft);color:var(--brand-purple)}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(13,14,22,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:box-shadow .26s ease;
}
.site-header.is-scrolled{box-shadow:0 14px 34px rgba(13,14,22,.5)}
.nav-inner{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  gap:18px;height:80px;
}
.nav-left{display:flex;align-items:center;gap:4px}
.nav-right{display:flex;align-items:center;gap:6px;justify-content:flex-end}
.nav-link{
  position:relative;padding:8px 12px;border-radius:10px;
  font-size:14px;font-weight:500;color:rgba(255,255,255,.72);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;border-radius:2px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;
  transition:transform .24s ease;
}
.nav-link:hover{color:#fff}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:#fff;font-weight:600}
.brand{display:flex;align-items:center;gap:11px;justify-self:center}
.brand-mark{
  width:40px;height:40px;border-radius:13px;background:var(--grad);
  display:grid;place-items:center;color:#fff;font-size:16px;
  box-shadow:0 10px 24px rgba(108,77,255,.45);
}
.brand-text{display:block;font-size:19px;font-weight:800;color:#fff;letter-spacing:.6px;white-space:nowrap}
.brand-sub{display:block;font-size:11px;font-weight:500;color:rgba(255,255,255,.48);letter-spacing:1.8px;text-transform:uppercase}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid rgba(255,255,255,.2);color:#fff;
  align-items:center;justify-content:center;font-size:16px;
}
.nav-toggle:hover{background:rgba(255,255,255,.1)}
.mobile-menu{
  display:none;background:rgba(13,14,22,.99);
  border-top:1px solid rgba(255,255,255,.08);
  padding:10px 24px 24px;
}
.mobile-menu.is-open{display:block}
.mobile-menu a{
  display:block;padding:13px 2px;font-size:15px;
  color:rgba(255,255,255,.78);
  border-bottom:1px solid rgba(255,255,255,.07);
}
.mobile-menu a:hover,.mobile-menu a.is-active{color:var(--brand-teal)}
.mobile-menu .btn{width:100%;margin-top:18px}

/* ============ 面包屑 ============ */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.62);margin-bottom:18px}
.crumbs a:hover{color:var(--brand-teal)}
.crumbs .sep{opacity:.45}

/* ============ Hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  min-height:52vh;display:flex;align-items:flex-end;
  color:#fff;background-color:#0D0E16;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(13,14,22,.95) 0%,rgba(13,14,22,.76) 42%,rgba(108,77,255,.58) 100%);
}
.page-hero .container{position:relative;z-index:2;padding-top:110px;padding-bottom:58px}
.page-hero h1{font-size:clamp(30px,5vw,56px);font-weight:800;letter-spacing:-.02em;max-width:16em}
.hero-lead{max-width:640px;margin-top:18px;font-size:16px;color:rgba(255,255,255,.78)}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-badges .badge{padding:6px 15px;font-size:13px;background:rgba(13,14,22,.6);border:1px solid rgba(255,255,255,.14)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}

/* ============ 通用板块 ============ */
.section{padding:var(--space-section) 0}
.section-tight{padding:64px 0}
.section-head{max-width:780px;margin-bottom:42px}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;font-weight:700;letter-spacing:1.6px;
  color:var(--brand-purple);margin-bottom:14px;
}
.eyebrow::before{content:"";width:28px;height:3px;border-radius:3px;background:var(--grad)}
.section-title{font-size:clamp(24px,3.2vw,38px);font-weight:800}
.section-desc{color:var(--muted);margin-top:14px;font-size:16px}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ============ 数据条 ============ */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat-card{
  background:#fff;border:1px solid var(--line);border-radius:20px;
  padding:24px;box-shadow:var(--shadow);
  transition:transform .24s ease,box-shadow .24s ease;
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.stat-num{
  font-family:"DIN Alternate","Barlow Condensed",sans-serif;
  font-size:34px;font-weight:800;line-height:1.1;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-label{margin-top:8px;font-size:14px;color:var(--muted)}

/* ============ 筛选 + 网格 ============ */
.filter-layout{display:grid;grid-template-columns:288px 1fr;gap:34px;align-items:start}
.filter-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 24px;box-shadow:var(--shadow);position:sticky;top:104px;
}
.filter-title{font-size:17px;font-weight:800;margin-bottom:6px}
.filter-note{font-size:13px;color:var(--muted);margin-bottom:22px}
.chip-group{padding-top:18px;border-top:1px solid var(--line)}
.chip-group:first-of-type{border-top:0;padding-top:0}
.chip-group h4{font-size:13px;font-weight:700;letter-spacing:1px;color:var(--muted);margin-bottom:12px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  padding:7px 15px;border-radius:999px;border:1px solid var(--line);
  background:#fff;color:var(--muted);font-size:13px;font-weight:500;
  transition:all .22s ease;
}
.chip:hover{border-color:var(--brand-purple);color:var(--brand-purple);transform:translateY(-1px)}
.chip.is-active{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 10px 22px rgba(108,77,255,.3)}
.filter-reset{width:100%;margin-top:24px}

.game-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.game-card{
  display:flex;flex-direction:column;height:100%;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.game-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(108,77,255,.3)}
.game-cover{position:relative;overflow:hidden;aspect-ratio:16/10;background:var(--grad)}
.game-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.game-card:hover .game-cover img{transform:scale(1.04)}
.game-cover .badge{position:absolute;top:12px;left:12px}
.game-cover .badge.right{left:auto;right:12px}
.game-body{display:flex;flex-direction:column;gap:10px;flex:1;padding:18px 20px 22px}
.game-title{font-size:18px;font-weight:700}
.game-desc{
  font-size:14px;color:var(--muted);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.game-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  margin-top:auto;padding-top:6px;font-size:12.5px;color:var(--muted);
}
.game-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--line)}
.game-meta .score{color:var(--brand-coral);font-weight:700}
.game-cell.is-hidden{display:none}
.empty-state{
  display:none;padding:56px 24px;text-align:center;
  background:#fff;border:1px dashed rgba(108,77,255,.35);border-radius:var(--radius-card);
}
.empty-state.is-visible{display:block}
.empty-state i{font-size:26px;color:var(--brand-purple)}
.empty-state h3{margin-top:14px;font-size:18px}
.empty-state p{color:var(--muted);font-size:14px;margin-top:8px}

/* ============ 编辑精选 ============ */
.feature-grid{display:grid;grid-template-columns:1.55fr 1fr;gap:24px}
.feature-main{
  position:relative;overflow:hidden;border-radius:var(--radius-block);
  background:#0D0E16;color:#fff;min-height:400px;display:flex;align-items:flex-end;
  box-shadow:var(--shadow);
}
.feature-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.72;transition:transform .6s ease}
.feature-main:hover img{transform:scale(1.04)}
.feature-main::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(13,14,22,.15) 0%,rgba(13,14,22,.9) 100%)}
.feature-main .inner{position:relative;z-index:2;padding:36px 34px}
.feature-main h3{font-size:clamp(20px,2.4vw,28px);margin-bottom:12px}
.feature-main p{color:rgba(255,255,255,.75);font-size:15px;max-width:34em}
.feature-side{display:grid;gap:24px}
.feature-mini{
  display:flex;gap:16px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);padding:18px;box-shadow:var(--shadow);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.feature-mini:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(24,224,184,.4)}
.feature-mini img{width:118px;height:118px;border-radius:16px;object-fit:cover;flex-shrink:0}
.feature-mini h4{font-size:17px;margin-bottom:8px}
.feature-mini p{font-size:13.5px;color:var(--muted);margin:0 0 10px}

/* ============ 榜单依据流程 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.step{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px 24px;box-shadow:var(--shadow);
  transition:transform .24s ease,box-shadow .24s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.step-num{
  font-family:"DIN Alternate","Barlow Condensed",sans-serif;
  font-size:26px;font-weight:800;line-height:1;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.step h3{font-size:17px;margin:14px 0 10px}
.step p{font-size:14px;color:var(--muted);margin:0}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px;max-width:900px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:0 24px;transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item[open]{border-color:rgba(108,77,255,.36);box-shadow:var(--shadow)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:12px;
  padding:20px 0;font-size:16px;font-weight:700;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary i{color:var(--brand-purple);font-size:14px}
.faq-item summary::after{
  content:"+";margin-left:auto;font-size:20px;font-weight:700;
  color:var(--brand-purple);line-height:1;transition:transform .22s ease;
}
.faq-item[open] summary::after{content:"−"}
.faq-item .faq-body{padding:0 0 22px 26px;color:var(--muted);font-size:15px}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-block);
  background:var(--grad);color:#fff;text-align:center;
  padding:64px 32px;box-shadow:0 24px 60px rgba(108,77,255,.3);
}
.cta-band::before{
  content:"";position:absolute;top:-120px;right:-80px;width:340px;height:340px;
  border-radius:50%;background:rgba(255,255,255,.16);
}
.cta-band::after{
  content:"";position:absolute;bottom:-140px;left:-60px;width:300px;height:300px;
  border-radius:50%;background:rgba(13,14,22,.14);
}
.cta-band .inner{position:relative;z-index:2}
.cta-band h2{font-size:clamp(24px,3.4vw,38px);color:#fff}
.cta-band p{max-width:640px;margin:16px auto 0;color:rgba(255,255,255,.88);font-size:16px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:32px}
.cta-band .btn-outline{background:#fff;border-color:#fff;color:var(--brand-purple)}
.cta-band .btn-outline:hover{background:rgba(255,255,255,.9);color:#4B32C9}

/* ============ 页脚 ============ */
.site-footer{position:relative;background:var(--ink);color:rgba(255,255,255,.66);margin-top:var(--space-section)}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--grad)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:44px;padding:66px 0 44px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:18px}
.footer-brand .brand-mark{box-shadow:none}
.footer-brand .brand-text{font-size:18px}
.footer-about{font-size:14px;color:rgba(255,255,255,.6);max-width:34em}
.footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px}
.footer-links{display:grid;gap:11px;font-size:14px}
.footer-links a{color:rgba(255,255,255,.66)}
.footer-links a:hover{color:var(--brand-teal)}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:14px;
  border-top:1px solid rgba(255,255,255,.08);padding:22px 0;font-size:13px;color:rgba(255,255,255,.5);
}
.to-top{
  display:inline-flex;align-items:center;gap:8px;padding:8px 16px;border-radius:999px;
  border:1px solid rgba(255,255,255,.18);color:rgba(255,255,255,.7);font-size:13px;
}
.to-top:hover{border-color:var(--brand-teal);color:var(--brand-teal)}

/* ============ 响应式 ============ */
@media screen and (max-width:1024px){
  :root{--space-section:64px}
  .nav-left,.nav-right{display:none}
  .nav-inner{grid-template-columns:1fr;height:70px;position:relative}
  .brand{justify-self:center}
  .nav-toggle{display:inline-flex;position:absolute;right:0;top:50%;transform:translateY(-50%)}
  .page-hero .container{padding-top:80px;padding-bottom:48px}
  .filter-layout{grid-template-columns:1fr;gap:26px}
  .filter-panel{position:static}
  .feature-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;padding:54px 0 36px}
}
@media screen and (max-width:640px){
  :root{--space-section:48px}
  .container{padding:0 18px}
  .page-hero{min-height:auto}
  .page-hero .container{padding-top:56px;padding-bottom:40px}
  .hero-actions .btn{width:100%}
  .game-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:1fr;gap:14px}
  .feature-mini{flex-direction:column}
  .feature-mini img{width:100%;height:180px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-band{padding:44px 20px}
  .cta-actions .btn{width:100%}
}

/* roulang page: category3 */
:root{
  --primary:#6C4DFF;
  --accent:#18E0B8;
  --coral:#FF7A45;
  --ink:#0D0E16;
  --surface:#F5F6FA;
  --text:#12131A;
  --muted:#6B7280;
  --line:rgba(18,19,26,.10);
  --grad:linear-gradient(135deg,#6C4DFF 0%,#18E0B8 100%);
  --grad-coral:linear-gradient(135deg,#FF7A45 0%,#6C4DFF 100%);
  --r-card:24px;
  --r-block:32px;
  --r-btn:12px;
  --sh:0 16px 40px rgba(13,14,22,.10);
  --sh-hover:0 22px 54px rgba(13,14,22,.16);
  --nav-h:80px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--surface);
  color:var(--text);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .22s ease}
a:hover{color:var(--primary)}
button{font-family:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.3;letter-spacing:-.3px}
p{margin:0}
.num{font-family:"DIN Alternate","Barlow Condensed","PingFang SC",sans-serif;font-variant-numeric:tabular-nums}

.container{max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:72px 0}
.section-tight{padding:48px 0}
.bg-ink{background:var(--ink);color:#fff}
.bg-ink .section-head p{color:rgba(245,246,250,.62)}

/* ============ Header ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:90;
  background:rgba(13,14,22,.78);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:background .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{background:rgba(13,14,22,.95);box-shadow:0 14px 34px rgba(0,0,0,.3)}
.header-shell{
  max-width:1320px;margin:0 auto;height:var(--nav-h);padding:0 24px;
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:14px;
}
.nav-side{display:flex;align-items:center;gap:4px}
.nav-left{justify-content:flex-start}
.nav-right{justify-content:flex-end}
.nav-link{
  position:relative;color:rgba(245,246,250,.72);font-size:15px;font-weight:500;
  padding:9px 12px;border-radius:999px;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--accent),var(--primary));
  transform:scaleX(0);transform-origin:left;transition:transform .26s ease;
}
.nav-link:hover{color:#fff}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:#fff;font-weight:700}
.nav-link:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

.brand{display:flex;align-items:center;gap:10px;padding:0 8px}
.brand-mark{width:30px;height:30px;display:grid;grid-template-columns:1fr 1fr;gap:3px;flex:0 0 auto}
.brand-mark span{display:block;border-radius:4px;background:var(--primary)}
.brand-mark span:nth-child(1){background:linear-gradient(135deg,#6C4DFF,#18E0B8)}
.brand-mark span:nth-child(2){background:#18E0B8}
.brand-mark span:nth-child(3){background:#6C4DFF}
.brand-mark span:nth-child(4){background:linear-gradient(135deg,#18E0B8,#6C4DFF)}
.brand-name{font-size:19px;font-weight:800;color:#fff;letter-spacing:.4px;white-space:nowrap}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;line-height:1.4;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 28px rgba(108,77,255,.28)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 18px 42px rgba(108,77,255,.4)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.34);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff;transform:translateY(-2px)}
.btn-outline{background:#fff;border-color:var(--line);color:var(--text)}
.btn-outline:hover{border-color:rgba(108,77,255,.5);color:var(--primary);transform:translateY(-2px)}
.btn-sm{padding:9px 18px;font-size:14px;border-radius:999px}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px}

.menu-toggle{
  display:none;width:42px;height:42px;border:1px solid rgba(255,255,255,.24);
  border-radius:12px;background:transparent;flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.menu-toggle span{display:block;width:17px;height:2px;border-radius:2px;background:#fff;transition:transform .22s ease,opacity .22s ease}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.mobile-menu{
  display:none;flex-direction:column;gap:2px;
  background:rgba(13,14,22,.98);border-bottom:1px solid rgba(255,255,255,.08);
  padding:14px 24px 26px;max-height:calc(100vh - var(--nav-h));overflow-y:auto;
}
.mobile-menu.is-open{display:flex}
.mobile-menu a{color:rgba(245,246,250,.8);padding:12px 10px;border-radius:10px;font-size:15px;font-weight:500}
.mobile-menu a:hover,.mobile-menu a.is-active{background:rgba(255,255,255,.07);color:#fff}
.mobile-menu .btn{margin-top:12px}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;background:var(--ink);color:#fff;
  padding:calc(var(--nav-h) + 66px) 0 74px;min-height:52vh;
  display:flex;align-items:center;
}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.5;transform:scale(1.04)}
.hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(13,14,22,.94) 0%,rgba(13,14,22,.78) 46%,rgba(13,14,22,.5) 100%);
}
.hero-inner{position:relative;z-index:2;width:100%}
.hero-crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(245,246,250,.6);margin-bottom:18px}
.hero-crumb a{color:rgba(245,246,250,.6)}
.hero-crumb a:hover{color:var(--accent)}
.hero-crumb .sep{opacity:.5}
.hero-crumb .cur{color:var(--accent)}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:5px 14px;border-radius:999px;
  border:1px solid rgba(24,224,184,.42);color:var(--accent);
  font-size:13px;font-weight:700;letter-spacing:1px;margin-bottom:18px;
}
.hero h1{
  font-size:clamp(30px,4.4vw,52px);font-weight:800;color:#fff;letter-spacing:-1px;
  max-width:880px;margin-bottom:18px;
}
.hero-sub{
  max-width:760px;font-size:17px;line-height:1.85;color:rgba(245,246,250,.76);margin-bottom:28px;
}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:30px}
.stat-badge{
  display:inline-flex;flex-direction:column;gap:2px;
  padding:12px 20px;border-radius:999px;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.stat-badge b{font-size:19px;font-weight:800;color:var(--accent);line-height:1.2}
.stat-badge span{font-size:12px;color:rgba(245,246,250,.6);letter-spacing:.6px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ============ Chips ============ */
.filter-bar{padding:34px 0 6px}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  padding:9px 18px;border-radius:999px;border:1px solid var(--line);background:#fff;
  color:var(--muted);font-size:14px;font-weight:500;
  transition:color .22s ease,border-color .22s ease,background .22s ease,box-shadow .22s ease,transform .22s ease;
}
.chip:hover{color:var(--primary);border-color:rgba(108,77,255,.42);transform:translateY(-2px)}
.chip.is-active{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 12px 26px rgba(108,77,255,.26)}
.chip:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* ============ Section head ============ */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:34px}
.section-head h2{font-size:clamp(24px,3.2vw,38px);margin-bottom:10px;letter-spacing:-.6px}
.section-head p{font-size:15px;color:var(--muted);max-width:640px}
.kicker{
  display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:700;
  letter-spacing:1.6px;color:var(--primary);margin-bottom:12px;
}
.kicker::before{content:"";width:26px;height:3px;border-radius:3px;background:var(--grad)}
.bg-ink .kicker{color:var(--accent)}

/* ============ Cards ============ */
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh);display:flex;flex-direction:column;height:100%;
  transition:transform .26s ease,box-shadow .26s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.card-media{position:relative;overflow:hidden;background:linear-gradient(135deg,#6C4DFF,#18E0B8)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.card:hover .card-media img{transform:scale(1.04)}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:19px;line-height:1.45}
.card-body p{font-size:14.5px;color:var(--muted);line-height:1.75}
.card-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12.5px;color:var(--muted);margin-top:auto;padding-top:6px}
.card-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line);display:inline-block}

.card-feature .card-media{aspect-ratio:16/10}
.card-feature .card-body h3{font-size:23px}
.card-feature .card-body p{font-size:15px}
.card-mid .card-media{aspect-ratio:4/3}
.card-mid .card-body h3{font-size:18px}

.badge{
  display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1.6;
  background:rgba(13,14,22,.66);color:var(--accent);
  -webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);
}
.badge-coral{color:#FFB392}
.badge-primary{color:#C9BCFF}
.badge-abs{position:absolute;top:12px;left:12px;z-index:2}
.badge-abs-r{position:absolute;top:12px;right:12px;z-index:2}

.tag{
  display:inline-flex;align-items:center;padding:4px 11px;border-radius:999px;
  background:rgba(108,77,255,.09);color:var(--primary);font-size:12px;font-weight:600;
}
.tag-accent{background:rgba(24,224,184,.14);color:#0E9C80}
.tag-coral{background:rgba(255,122,69,.13);color:#D9521F}

/* ============ Rank list ============ */
.panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-block);
  box-shadow:var(--sh);padding:28px;
}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:20px;flex-wrap:wrap}
.panel-head h3{font-size:22px}
.panel-head span{font-size:13px;color:var(--muted)}

.rank-list{display:flex;flex-direction:column;gap:4px}
.rank-item{
  display:flex;align-items:center;gap:18px;padding:16px 14px;border-radius:18px;
  transition:background .22s ease,transform .22s ease;
}
.rank-item:hover{background:rgba(108,77,255,.05);transform:translateX(4px)}
.rank-num{
  font-family:"DIN Alternate","Barlow Condensed",sans-serif;
  font-size:30px;font-weight:800;line-height:1;letter-spacing:-1px;
  min-width:52px;color:rgba(18,19,26,.14);
}
.rank-item:nth-child(1) .rank-num{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.rank-item:nth-child(2) .rank-num{color:rgba(108,77,255,.55)}
.rank-item:nth-child(3) .rank-num{color:rgba(24,224,184,.7)}
.rank-thumb{width:120px;height:80px;border-radius:12px;object-fit:cover;flex:0 0 auto}
.rank-body{flex:1;min-width:0;display:flex;flex-direction:column;gap:6px}
.rank-body h4{font-size:17px;font-weight:700;line-height:1.4}
.rank-body p{font-size:13.5px;color:var(--muted);line-height:1.6}
.rank-tags{display:flex;flex-wrap:wrap;gap:6px}
.rank-side{flex:0 0 auto;text-align:right}
.rank-side b{display:block;font-size:17px;font-weight:800;color:var(--coral)}
.rank-side span{font-size:12px;color:var(--muted)}

/* ============ Editor pick ============ */
.pick{display:flex;flex-direction:column;gap:16px}
.pick-item{
  display:flex;gap:14px;align-items:center;padding:14px;border-radius:18px;
  border:1px solid var(--line);background:#fff;transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.pick-item:hover{transform:translateY(-3px);box-shadow:var(--sh);border-color:rgba(108,77,255,.28)}
.pick-item img{width:78px;height:78px;border-radius:14px;object-fit:cover;flex:0 0 auto}
.pick-item h4{font-size:16px;font-weight:700;line-height:1.4;margin-bottom:4px}
.pick-item p{font-size:13px;color:var(--muted);line-height:1.6}

/* ============ Steps ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh);position:relative;overflow:hidden;
  transition:transform .26s ease,box-shadow .26s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.step::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad);opacity:.85}
.step-no{
  font-family:"DIN Alternate","Barlow Condensed",sans-serif;
  font-size:34px;font-weight:800;line-height:1;margin-bottom:14px;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.step h4{font-size:18px;margin-bottom:8px}
.step p{font-size:14px;color:var(--muted);line-height:1.75}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;
  transition:border-color .24s ease,box-shadow .24s ease;
}
.faq-item:hover{border-color:rgba(108,77,255,.3)}
.faq-item.is-open{border-color:rgba(108,77,255,.45);box-shadow:var(--sh)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;background:transparent;border:0;text-align:left;
  font-size:16.5px;font-weight:700;color:var(--text);line-height:1.6;
}
.faq-icon{
  position:relative;flex:0 0 auto;width:20px;height:20px;border-radius:50%;
  background:rgba(108,77,255,.1);transition:background .24s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;top:50%;left:50%;background:var(--primary);border-radius:2px;
  transform:translate(-50%,-50%);transition:transform .24s ease,background .24s ease;
}
.faq-icon::before{width:10px;height:2px}
.faq-icon::after{width:2px;height:10px}
.faq-item.is-open .faq-icon{background:var(--grad)}
.faq-item.is-open .faq-icon::before,.faq-item.is-open .faq-icon::after{background:#fff}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg) scaleX(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{padding:0 22px 20px;font-size:15px;color:var(--muted);line-height:1.85}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-block);
  background:linear-gradient(135deg,#6C4DFF 0%,#18E0B8 100%);
  padding:56px 48px;color:#fff;box-shadow:0 26px 60px rgba(108,77,255,.3);
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;border-radius:50%;
  background:rgba(255,255,255,.14);
}
.cta-band h2{font-size:clamp(24px,3vw,36px);color:#fff;margin-bottom:14px;position:relative;z-index:2}
.cta-band p{font-size:16px;color:rgba(255,255,255,.86);max-width:640px;margin-bottom:28px;position:relative;z-index:2}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:2}
.btn-white{background:#fff;color:var(--primary);box-shadow:0 14px 30px rgba(13,14,22,.18)}
.btn-white:hover{color:var(--primary);transform:translateY(-2px);box-shadow:0 20px 40px rgba(13,14,22,.24)}
.btn-line{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
.btn-line:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px)}

/* ============ Footer ============ */
.site-footer{background:var(--ink);color:rgba(245,246,250,.66);margin-top:80px;position:relative}
.site-footer::before{content:"";display:block;height:1px;background:linear-gradient(90deg,transparent,#6C4DFF,#18E0B8,transparent)}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;
  padding:64px 24px 44px;max-width:1240px;margin:0 auto;
}
.footer-brand .brand{padding:0;margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.9;color:rgba(245,246,250,.6);max-width:340px}
.footer-slogan{
  display:inline-flex;align-items:center;gap:8px;margin-top:16px;padding:6px 14px;border-radius:999px;
  border:1px solid rgba(24,224,184,.32);color:var(--accent);font-size:13px;font-weight:600;
}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:18px;font-weight:700;letter-spacing:.4px}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:14px;color:rgba(245,246,250,.62)}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding:22px 24px 30px;max-width:1240px;margin:0 auto;font-size:13px;color:rgba(245,246,250,.46);
}
.footer-bottom a{color:rgba(245,246,250,.66)}
.footer-bottom a:hover{color:var(--accent)}

/* ============ Responsive ============ */
@media (max-width:1023px){
  :root{--nav-h:72px}
  .header-shell{grid-template-columns:1fr auto 1fr;height:var(--nav-h)}
  .nav-left{display:none}
  .nav-right .nav-link,.nav-right .btn{display:none}
  .menu-toggle{display:flex;justify-self:end}
  .brand{justify-self:center}
  .section{padding:56px 0}
  .steps{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:52px 24px 36px}
  .cta-band{padding:44px 32px}
  .panel{padding:22px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .hero{padding:calc(var(--nav-h) + 44px) 0 56px;min-height:auto}
  .hero-sub{font-size:15.5px}
  .hero-badges{gap:10px}
  .stat-badge{padding:10px 16px}
  .stat-badge b{font-size:17px}
  .section{padding:44px 0}
  .section-head{margin-bottom:24px}
  .rank-item{gap:12px;padding:12px 8px;align-items:flex-start}
  .rank-num{font-size:24px;min-width:38px}
  .rank-thumb{width:88px;height:64px}
  .rank-side{display:none}
  .panel{padding:18px;border-radius:24px}
  .steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:44px 18px 30px}
  .footer-bottom{padding:18px 18px 26px;font-size:12.5px}
  .cta-band{padding:34px 22px;border-radius:24px}
  .faq-q{font-size:15.5px;padding:16px 18px}
  .faq-a p{padding:0 18px 18px}
}
@media (max-width:519px){
  .brand-name{font-size:17px}
  .brand-mark{width:26px;height:26px}
  .card-body{padding:16px 18px 20px}
  .card-feature .card-body h3{font-size:19px}
  .hero h1{letter-spacing:-.4px}
}

/* roulang page: category4 */
:root{
  --brand-1:#6C4DFF;
  --brand-2:#18E0B8;
  --accent:#FF7A45;
  --dark:#0D0E16;
  --bg:#F5F6FA;
  --surface:#FFFFFF;
  --ink:#12131A;
  --muted:#6B7280;
  --line:rgba(18,19,26,.10);
  --grad:linear-gradient(135deg,#6C4DFF 0%,#18E0B8 100%);
  --grad-soft:linear-gradient(135deg,rgba(108,77,255,.12) 0%,rgba(24,224,184,.12) 100%);
  --r-card:24px;
  --r-lg:32px;
  --r-btn:12px;
  --r-pill:999px;
  --shadow:0 16px 40px rgba(13,14,22,.10);
  --shadow-hover:0 22px 54px rgba(13,14,22,.16);
  --sp:96px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;object-fit:cover;}
a{color:inherit;text-decoration:none;transition:color .22s ease,background .22s ease;}
a:hover{color:var(--brand-1);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.3;letter-spacing:-.01em;}
p{margin:0;}
button,input{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand-2);outline-offset:3px;border-radius:6px;}

.container{width:min(1200px,100% - 48px);margin:0 auto;}
.section{padding:var(--sp) 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand-1);margin-bottom:14px;
}
.section-head .eyebrow::before{content:"";width:28px;height:3px;border-radius:3px;background:var(--grad);}
.section-head h2{font-size:clamp(24px,3.2vw,38px);margin-bottom:14px;}
.section-head p{color:var(--muted);font-size:16px;}
.on-dark .section-head h2,.on-dark h2{color:#F5F6FA;}
.on-dark .section-head p{color:rgba(245,246,250,.68);}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(13,14,22,.86);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid rgba(245,246,250,.08);
  transition:box-shadow .26s ease,background .26s ease;
}
.site-header.is-scrolled{box-shadow:0 12px 34px rgba(13,14,22,.42);background:rgba(13,14,22,.94);}
.nav-inner{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  gap:18px;height:80px;
}
.nav-left,.nav-right{display:flex;align-items:center;gap:24px;}
.nav-right{justify-content:flex-end;}
.brand{display:flex;align-items:center;gap:10px;color:#F5F6FA;font-weight:800;font-size:19px;letter-spacing:.01em;}
.brand:hover{color:#F5F6FA;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;background:var(--grad);
  display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);
  gap:3px;padding:7px;flex:0 0 auto;
  box-shadow:0 8px 20px rgba(108,77,255,.42);
}
.brand-mark span{border-radius:2px;background:rgba(255,255,255,.92);}
.brand-mark span:nth-child(2),.brand-mark span:nth-child(5),.brand-mark span:nth-child(8){background:rgba(255,255,255,.45);}
.nav-link{
  position:relative;font-size:15px;font-weight:500;
  color:rgba(245,246,250,.72);padding:6px 0;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  border-radius:2px;background:var(--grad);transition:width .26s ease;
}
.nav-link:hover{color:#F5F6FA;}
.nav-link:hover::after{width:100%;}
.nav-link.is-active{color:#F5F6FA;font-weight:700;}
.nav-link.is-active::after{width:100%;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid rgba(245,246,250,.18);background:rgba(245,246,250,.06);
  color:#F5F6FA;font-size:17px;align-items:center;justify-content:center;
  cursor:pointer;justify-self:end;transition:background .22s ease;
}
.nav-toggle:hover{background:rgba(245,246,250,.14);}
.nav-spacer{display:none;}
.mobile-nav{
  display:none;background:rgba(13,14,22,.98);
  border-bottom:1px solid rgba(245,246,250,.10);
  padding:10px 0 18px;
}
.mobile-nav.is-open{display:block;}
.mobile-nav a{
  display:block;padding:13px 4px;font-size:16px;
  color:rgba(245,246,250,.80);border-bottom:1px solid rgba(245,246,250,.07);
}
.mobile-nav a:last-child{border-bottom:0;}
.mobile-nav a.is-active{color:var(--brand-2);font-weight:700;}
.mobile-nav .btn{margin-top:14px;width:100%;justify-content:center;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;border:1px solid transparent;
  cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 28px rgba(108,77,255,.34);}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 20px 42px rgba(108,77,255,.44);}
.btn-primary:active{transform:translateY(0) scale(.98);}
.btn-ghost{background:transparent;color:#F5F6FA;border-color:rgba(245,246,250,.34);}
.btn-ghost:hover{color:#fff;background:linear-gradient(135deg,rgba(108,77,255,.30),rgba(24,224,184,.24));border-color:transparent;transform:translateY(-2px);}
.btn-outline{background:transparent;color:var(--brand-1);border-color:rgba(108,77,255,.42);}
.btn-outline:hover{background:var(--grad-soft);color:var(--brand-1);transform:translateY(-2px);}
.btn-sm{padding:10px 18px;font-size:14px;border-radius:var(--r-pill);}
.btn-lg{padding:16px 34px;font-size:16px;}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:700;letter-spacing:.02em;
  background:rgba(13,14,22,.62);color:var(--brand-2);
  backdrop-filter:blur(4px);
}
.badge.accent{color:var(--accent);}
.badge.light{background:rgba(108,77,255,.10);color:var(--brand-1);}
.tag{
  display:inline-block;padding:3px 11px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;color:var(--muted);
  background:rgba(18,19,26,.05);
}
.tag.on{background:var(--grad);color:#fff;}

/* ============ Hero ============ */
.hero{
  position:relative;min-height:54vh;display:flex;align-items:center;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color:#F5F6FA;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(13,14,22,.95) 0%,rgba(13,14,22,.78) 46%,rgba(13,14,22,.42) 100%);
}
.hero-inner{position:relative;z-index:2;padding:76px 0;width:100%;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(245,246,250,.60);margin-bottom:20px;}
.breadcrumb a{color:rgba(245,246,250,.60);}
.breadcrumb a:hover{color:var(--brand-2);}
.breadcrumb span.sep{opacity:.5;}
.hero h1{font-size:clamp(30px,5vw,56px);margin-bottom:18px;max-width:16em;}
.hero h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-sub{max-width:640px;font-size:16px;color:rgba(245,246,250,.78);margin-bottom:26px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 筛选 chips ============ */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.chip{
  padding:8px 18px;border-radius:var(--r-pill);font-size:14px;font-weight:600;
  color:rgba(245,246,250,.78);border:1px solid rgba(245,246,250,.22);
  background:rgba(245,246,250,.05);cursor:pointer;transition:all .22s ease;
}
.chip:hover{color:#fff;border-color:rgba(24,224,184,.55);}
.chip.is-active{background:var(--grad);border-color:transparent;color:#fff;box-shadow:0 10px 24px rgba(108,77,255,.34);}

/* ============ 卡片 ============ */
.card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(108,77,255,.24);}
.card-media{position:relative;overflow:hidden;}
.card-media img{width:100%;height:100%;transition:transform .26s ease;}
.card:hover .card-media img{transform:scale(1.04);}
.card-media .badge{position:absolute;top:12px;left:12px;}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:20px;line-height:1.45;}
.card-body p{font-size:14px;color:var(--muted);}
.card-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-top:auto;padding-top:8px;}
.card-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(18,19,26,.22);}
.card-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--brand-1);}
.card-link:hover{color:var(--brand-2);}

/* 精选 1 大 + 2 中 */
.feature-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:24px;}
.feature-side{display:grid;grid-template-rows:1fr 1fr;gap:24px;}
.feature-main .card-media{height:340px;}
.feature-main .card-body h3{font-size:24px;}
.feature-side .card{flex-direction:row;}
.feature-side .card-media{width:44%;flex:0 0 44%;}
.feature-side .card-body{padding:18px 20px;}
.feature-side .card-body h3{font-size:17px;}

/* 瀑布流 */
.masonry{column-count:3;column-gap:24px;}
.masonry > *{break-inside:avoid;margin-bottom:24px;}
.masonry .card-media{height:auto;min-height:170px;}
.masonry .card-media img{height:100%;}
.m-card .card-body h3{font-size:19px;}
.m-card .card-media.tall img{height:280px;}
.m-card .card-media.mid img{height:210px;}
.m-card .card-media.short img{height:170px;}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.step{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 24px;box-shadow:var(--shadow);position:relative;
  transition:transform .24s ease,box-shadow .24s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.step .num{
  font-family:"DIN Alternate","Barlow Condensed",sans-serif;
  font-size:34px;font-weight:800;line-height:1;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:14px;display:block;
}
.step h3{font-size:18px;margin-bottom:8px;}
.step p{font-size:14px;color:var(--muted);}

/* 日历 / 时间线 */
.calendar{
  background:var(--dark);border-radius:var(--r-lg);padding:clamp(28px,4vw,48px);
  color:#F5F6FA;position:relative;overflow:hidden;
}
.calendar::after{
  content:"";position:absolute;right:-90px;top:-90px;width:300px;height:300px;border-radius:50%;
  background:var(--grad);opacity:.20;filter:blur(30px);
}
.calendar .section-head{margin-bottom:28px;position:relative;z-index:1;}
.timeline{position:relative;z-index:1;display:grid;gap:14px;}
.timeline li{
  display:grid;grid-template-columns:120px 1fr auto;gap:18px;align-items:center;
  padding:16px 18px;border-radius:16px;
  background:rgba(245,246,250,.06);border:1px solid rgba(245,246,250,.10);
  transition:background .22s ease,transform .22s ease;
}
.timeline li:hover{background:rgba(245,246,250,.11);transform:translateX(4px);}
.timeline .date{font-family:"DIN Alternate","Barlow Condensed",sans-serif;font-size:19px;font-weight:800;color:var(--brand-2);}
.timeline .info strong{display:block;font-size:16px;color:#F5F6FA;}
.timeline .info span{font-size:13px;color:rgba(245,246,250,.62);}
.timeline .tag{background:rgba(255,122,69,.16);color:var(--accent);}

/* 社会认同 */
.proof{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-bottom:34px;}
.proof-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;text-align:center;box-shadow:var(--shadow);
}
.proof-item .figure{
  font-family:"DIN Alternate","Barlow Condensed",sans-serif;
  font-size:34px;font-weight:800;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.proof-item span{display:block;font-size:14px;color:var(--muted);margin-top:4px;}
.voices{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.voice{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--shadow);
}
.voice p{font-size:15px;color:#2A2C36;margin-bottom:16px;}
.voice .who{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);}
.voice .avatar{width:36px;height:36px;border-radius:50%;background:var(--grad);flex:0 0 auto;}

/* FAQ */
.faq-wrap{max-width:880px;}
.accordion{border:0;background:transparent;}
.accordion .accordion-item{
  background:var(--surface);border:1px solid var(--line) !important;
  border-radius:16px !important;margin-bottom:14px;overflow:hidden;
  box-shadow:0 10px 26px rgba(13,14,22,.06);
}
.accordion .accordion-title{
  display:flex;align-items:center;gap:12px;
  padding:20px 24px;font-size:17px;font-weight:700;color:var(--ink);
  border:0;background:transparent;
}
.accordion .accordion-title::before{
  content:"\f059";font-family:"Font Awesome 6 Free";font-weight:900;
  color:var(--brand-1);font-size:15px;flex:0 0 auto;
}
.accordion .accordion-title:hover{background:var(--grad-soft);color:var(--brand-1);}
.accordion .accordion-content{
  border:0 !important;padding:0 24px 22px 56px;color:var(--muted);font-size:15px;
  background:transparent;
}
.accordion .is-active > .accordion-title{color:var(--brand-1);}

/* CTA 横幅 */
.cta-banner{
  background:var(--grad);border-radius:var(--r-lg);
  padding:clamp(34px,5vw,60px);color:#fff;text-align:center;
  box-shadow:0 26px 60px rgba(108,77,255,.34);position:relative;overflow:hidden;
}
.cta-banner::before{
  content:"";position:absolute;left:-80px;bottom:-120px;width:280px;height:280px;border-radius:50%;
  background:rgba(255,255,255,.14);
}
.cta-banner h2{font-size:clamp(24px,3.4vw,38px);margin-bottom:14px;position:relative;z-index:1;}
.cta-banner p{max-width:620px;margin:0 auto 28px;color:rgba(255,255,255,.90);position:relative;z-index:1;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;position:relative;z-index:1;}
.cta-banner .btn-primary{background:#fff;color:var(--brand-1);box-shadow:0 14px 30px rgba(13,14,22,.18);}
.cta-banner .btn-primary:hover{background:#fff;color:var(--brand-1);}
.cta-banner .btn-ghost{border-color:rgba(255,255,255,.55);}
.cta-banner .btn-ghost:hover{background:rgba(255,255,255,.16);}

/* 页脚 */
.site-footer{
  background:var(--dark);color:rgba(245,246,250,.72);
  border-top:1px solid transparent;
  background-image:linear-gradient(var(--dark),var(--dark)),var(--grad);
  background-origin:border-box;background-clip:padding-box,border-box;
  margin-top:var(--sp);
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;
  padding:64px 0 42px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;max-width:400px;}
.footer-slogan{
  margin-top:16px;display:inline-block;padding:6px 16px;border-radius:var(--r-pill);
  background:rgba(24,224,184,.12);color:var(--brand-2);
  font-size:13px;font-weight:700;letter-spacing:.06em;
}
.footer-col h3{font-size:15px;color:#F5F6FA;margin-bottom:16px;font-weight:700;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:rgba(245,246,250,.66);}
.footer-col a:hover{color:var(--brand-2);}
.footer-bottom{
  border-top:1px solid rgba(245,246,250,.10);
  padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:14px;
  align-items:center;justify-content:space-between;font-size:13px;color:rgba(245,246,250,.52);
}
.footer-bottom a{color:rgba(245,246,250,.52);}
.footer-bottom a:hover{color:var(--brand-2);}

/* 回到顶部 */
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:70;
  width:46px;height:46px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--grad);color:#fff;border:0;cursor:pointer;
  box-shadow:0 14px 30px rgba(108,77,255,.38);
  opacity:0;visibility:hidden;transition:opacity .26s ease,transform .26s ease,visibility .26s;
}
.to-top.is-show{opacity:1;visibility:visible;}
.to-top:hover{transform:translateY(-3px);}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  :root{--sp:64px;}
  .nav-left,.nav-right{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-inner{grid-template-columns:1fr auto 1fr;height:72px;}
  .nav-spacer{display:block;}
  .masonry{column-count:2;}
  .feature-grid{grid-template-columns:1fr;}
  .feature-side{grid-template-columns:1fr 1fr;grid-template-rows:none;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .proof{grid-template-columns:repeat(2,1fr);}
  .voices{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:640px){
  :root{--sp:48px;}
  .container{width:min(1200px,100% - 32px);}
  .hero{min-height:auto;}
  .hero-inner{padding:56px 0;}
  .hero h1{font-size:clamp(26px,7vw,34px);}
  .hero-actions .btn{width:100%;}
  .masonry{column-count:1;}
  .feature-side{grid-template-columns:1fr;}
  .feature-side .card{flex-direction:column;}
  .feature-side .card-media{width:100%;flex:0 0 auto;height:190px;}
  .feature-main .card-media{height:220px;}
  .steps,.proof{grid-template-columns:1fr;}
  .timeline li{grid-template-columns:1fr;gap:6px;}
  .footer-grid{grid-template-columns:1fr;padding:48px 0 32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .accordion .accordion-content{padding-left:24px;}
}

/* roulang page: category5 */
:root{
    --violet:#6C4DFF;
    --cyan:#18E0B8;
    --coral:#FF7A45;
    --ink:#0D0E16;
    --paper:#F5F6FA;
    --text:#12131A;
    --muted:#6B7280;
    --line:rgba(18,19,26,.10);
    --grad:linear-gradient(135deg,#6C4DFF 0%,#18E0B8 100%);
    --grad-soft:linear-gradient(135deg,rgba(108,77,255,.12),rgba(24,224,184,.12));
    --radius-lg:32px;
    --radius:24px;
    --radius-sm:12px;
    --pill:999px;
    --shadow:0 16px 40px rgba(13,14,22,.10);
    --shadow-hover:0 22px 54px rgba(13,14,22,.16);
    --container:1200px;
    --nav-h:80px;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Helvetica,Arial,sans-serif;
    font-size:16px;
    line-height:1.8;
    color:var(--text);
    background:var(--paper);
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4,h5,h6{
    margin:0;
    font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
    font-weight:800;
    line-height:1.25;
    color:var(--text);
    letter-spacing:.2px;
  }
  p{margin:0;}
  ul,ol{margin:0;padding:0;list-style:none;}
  a{color:inherit;text-decoration:none;transition:color .2s ease;}
  a:hover{color:var(--violet);}
  img{max-width:100%;height:auto;display:block;}
  button,input{font-family:inherit;font-size:inherit;}
  button{cursor:pointer;border:0;background:none;color:inherit;}
  :focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px;}

  .site-container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
  .section{padding:96px 0;}
  .section--tight{padding:72px 0;}
  .section--dark{background:var(--ink);color:#fff;border-radius:var(--radius-lg);}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
    color:var(--violet);
  }
  .eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--grad);}
  .section-head{max-width:720px;margin-bottom:40px;}
  .section-title{font-size:clamp(24px,3.2vw,38px);margin:10px 0 12px;}
  .section-sub{color:var(--muted);font-size:15px;}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:13px 26px;border-radius:var(--radius-sm);
    font-size:15px;font-weight:700;letter-spacing:.3px;
    border:1px solid transparent;
    transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease;
    white-space:nowrap;
  }
  .btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 26px rgba(108,77,255,.32);}
  .btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 18px 36px rgba(108,77,255,.40);}
  .btn-primary:active{transform:scale(.98);}
  .btn-ghost{background:transparent;border-color:rgba(255,255,255,.4);color:#fff;}
  .btn-ghost:hover{color:#fff;background:rgba(255,255,255,.12);transform:translateY(-2px);}
  .btn-outline{background:#fff;border-color:var(--line);color:var(--text);box-shadow:var(--shadow);}
  .btn-outline:hover{color:var(--violet);border-color:rgba(108,77,255,.4);transform:translateY(-2px);}
  .btn-sm{padding:9px 18px;font-size:14px;border-radius:var(--pill);}

  /* ---------- 徽章 / 标签 ---------- */
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    padding:4px 10px;border-radius:var(--pill);
    font-size:12px;font-weight:600;line-height:1.6;
    background:rgba(13,14,22,.62);color:var(--cyan);
    backdrop-filter:blur(4px);
  }
  .badge--coral{color:var(--coral);}
  .badge--light{background:var(--grad-soft);color:var(--violet);backdrop-filter:none;}
  .tag{
    display:inline-flex;align-items:center;
    padding:4px 12px;border-radius:var(--pill);
    font-size:13px;color:var(--muted);
    background:#fff;border:1px solid var(--line);
  }
  .tag:hover{color:var(--violet);border-color:rgba(108,77,255,.35);}

  /* ---------- 导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:80;
    background:rgba(13,14,22,.92);
    backdrop-filter:blur(8px);
    border-bottom:1px solid rgba(255,255,255,.10);
    transition:box-shadow .25s ease,background .25s ease;
  }
  .site-header.is-scrolled{box-shadow:0 14px 34px rgba(13,14,22,.34);background:rgba(13,14,22,.97);}
  .nav-inner{
    max-width:1320px;margin:0 auto;padding:0 24px;
    min-height:var(--nav-h);
    display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:18px;
  }
  .nav-left,.nav-right{display:flex;align-items:center;gap:22px;}
  .nav-left{justify-self:start;}
  .nav-right{justify-self:end;}
  .nav-link{
    position:relative;
    font-size:15px;font-weight:500;
    color:rgba(255,255,255,.74);
    padding:6px 0;
  }
  .nav-link::after{
    content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;
    background:var(--grad);transform:scaleX(0);transform-origin:left;
    transition:transform .24s ease;
  }
  .nav-link:hover{color:#fff;}
  .nav-link:hover::after{transform:scaleX(1);}
  .nav-link.is-active{color:#fff;font-weight:700;}
  .nav-link.is-active::after{transform:scaleX(1);}
  .brand{display:inline-flex;align-items:center;gap:10px;justify-self:center;}
  .brand-mark{
    width:38px;height:38px;border-radius:12px;background:var(--grad);
    display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);
    gap:3px;padding:8px;box-shadow:0 8px 20px rgba(108,77,255,.35);
  }
  .brand-mark span{background:rgba(255,255,255,.92);border-radius:2px;}
  .brand-mark span:nth-child(5){background:rgba(13,14,22,.55);}
  .brand-name{font-size:19px;font-weight:800;color:#fff;letter-spacing:.5px;}
  .nav-toggle{
    display:none;justify-self:end;
    width:44px;height:44px;border-radius:12px;
    border:1px solid rgba(255,255,255,.24);
    color:#fff;align-items:center;justify-content:center;
  }
  .nav-toggle:hover{background:rgba(255,255,255,.10);}
  .nav-toggle i{font-size:18px;}
  .mobile-panel{display:none;background:rgba(13,14,22,.98);border-bottom:1px solid rgba(255,255,255,.10);padding:12px 24px 24px;}
  .mobile-panel.is-open{display:block;}
  .mobile-panel a{
    display:block;padding:13px 4px;color:rgba(255,255,255,.82);
    font-size:16px;border-bottom:1px solid rgba(255,255,255,.08);
  }
  .mobile-panel a.is-active{color:var(--cyan);font-weight:700;}
  .mobile-panel .btn{width:100%;margin-top:18px;}

  /* ---------- Hero ---------- */
  .hero{
    position:relative;color:#fff;
    min-height:52vh;display:flex;align-items:flex-end;
    padding:128px 0 64px;
    background-image:linear-gradient(180deg,rgba(13,14,22,.70) 0%,rgba(13,14,22,.86) 55%,rgba(13,14,22,.96) 100%),url('/assets/images/backpic/back-1.png');
    background-size:cover;background-position:center;
  }
  .breadcrumb{
    display:flex;flex-wrap:wrap;align-items:center;gap:8px;
    font-size:13px;color:rgba(255,255,255,.62);margin-bottom:20px;
  }
  .breadcrumb a{color:rgba(255,255,255,.78);}
  .breadcrumb a:hover{color:var(--cyan);}
  .breadcrumb span.sep{color:rgba(255,255,255,.35);}
  .hero h1{font-size:clamp(30px,5vw,56px);color:#fff;max-width:16em;}
  .hero-lead{color:rgba(255,255,255,.78);font-size:17px;max-width:640px;margin-top:16px;}
  .hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
  .hero-meta .badge{padding:6px 14px;font-size:13px;border:1px solid rgba(255,255,255,.14);}
  .chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
  .chip{
    padding:8px 18px;border-radius:var(--pill);
    font-size:14px;font-weight:600;
    color:rgba(255,255,255,.82);
    border:1px solid rgba(255,255,255,.22);
    transition:all .2s ease;
  }
  .chip:hover{color:#fff;border-color:rgba(24,224,184,.7);background:rgba(24,224,184,.12);}
  .chip.is-active{background:var(--grad);border-color:transparent;color:#fff;box-shadow:0 10px 24px rgba(108,77,255,.34);}

  /* ---------- 数据条 ---------- */
  .stats-strip{
    margin-top:-46px;position:relative;z-index:5;
    background:var(--ink);border-radius:var(--radius);
    padding:30px 34px;
    display:grid;grid-template-columns:repeat(4,1fr);gap:22px;
    box-shadow:var(--shadow);
  }
  .stat-num{
    font-family:"DIN Alternate","Barlow Condensed","PingFang SC",sans-serif;
    font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.2;
    background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  }
  .stat-label{font-size:13px;color:rgba(255,255,255,.62);margin-top:2px;}

  /* ---------- 双栏编辑式列表 ---------- */
  .editorial{display:grid;grid-template-columns:minmax(0,1.85fr) minmax(0,1fr);gap:34px;align-items:start;}
  .editorial-list{display:flex;flex-direction:column;gap:18px;}
  .editorial-item{
    display:grid;grid-template-columns:206px minmax(0,1fr);gap:20px;
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    padding:16px;box-shadow:var(--shadow);
    transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
  }
  .editorial-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(108,77,255,.28);}
  .editorial-thumb{position:relative;border-radius:16px;overflow:hidden;aspect-ratio:16/10;}
  .editorial-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
  .editorial-item:hover .editorial-thumb img{transform:scale(1.04);}
  .editorial-thumb .badge{position:absolute;left:10px;top:10px;}
  .editorial-body{display:flex;flex-direction:column;gap:8px;min-width:0;}
  .editorial-title{font-size:19px;line-height:1.45;}
  .editorial-title a:hover{color:var(--violet);}
  .editorial-excerpt{color:var(--muted);font-size:14px;line-height:1.7;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
  .meta-row{
    display:flex;flex-wrap:wrap;align-items:center;gap:8px;
    font-size:13px;color:var(--muted);margin-top:auto;
  }
  .meta-row .dot{width:3px;height:3px;border-radius:50%;background:var(--line);}
  .meta-row .cat{color:var(--violet);font-weight:600;}

  .side-panel{position:sticky;top:calc(var(--nav-h) + 24px);display:flex;flex-direction:column;gap:20px;}
  .panel{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    padding:24px;box-shadow:var(--shadow);
  }
  .panel-title{
    display:flex;align-items:center;justify-content:space-between;
    font-size:17px;margin-bottom:16px;
  }
  .panel-title small{font-size:12px;color:var(--muted);font-weight:500;}
  .rank-item{
    display:flex;gap:14px;align-items:flex-start;
    padding:12px 0;border-bottom:1px dashed var(--line);
  }
  .rank-item:last-child{border-bottom:0;padding-bottom:0;}
  .rank-num{
    font-family:"DIN Alternate","Barlow Condensed",sans-serif;
    font-size:22px;font-weight:700;line-height:1.2;min-width:34px;
    background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  }
  .rank-item h4{font-size:15px;font-weight:600;line-height:1.55;}
  .rank-item h4 a:hover{color:var(--violet);}
  .rank-item p{font-size:12px;color:var(--muted);margin-top:4px;}
  .panel--accent{background:linear-gradient(160deg,#0D0E16 0%,#1A1440 100%);border-color:transparent;color:#fff;}
  .panel--accent h3{color:#fff;}
  .panel--accent p{color:rgba(255,255,255,.72);font-size:14px;margin:12px 0 18px;}

  /* ---------- 话题卡片网格 ---------- */
  .topic-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
  .card{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;
    transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
  }
  .card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(24,224,184,.35);}
  .card-media{position:relative;aspect-ratio:16/9;overflow:hidden;}
  .card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
  .card:hover .card-media img{transform:scale(1.04);}
  .card-media .badge{position:absolute;left:12px;top:12px;}
  .card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
  .card-body h3{font-size:18px;}
  .card-body p{color:var(--muted);font-size:14px;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
  .card-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;
    padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);}
  .card-foot .more{color:var(--violet);font-weight:700;}
  .card-foot .more:hover{color:var(--cyan);}

  /* ---------- 分区标题强调色变体 ---------- */
  .accent-violet{--accent:var(--violet);}
  .accent-cyan{--accent:var(--cyan);}
  .accent-coral{--accent:var(--coral);}
  .card--accent{border-top:3px solid var(--accent,var(--violet));}

  /* ---------- 精选区（1 大 + 2 中） ---------- */
  .feature-split{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:24px;}
  .feature-main{position:relative;border-radius:var(--radius-lg);overflow:hidden;min-height:420px;display:flex;align-items:flex-end;color:#fff;}
  .feature-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
  .feature-main::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(13,14,22,.10) 30%,rgba(13,14,22,.92) 100%);}
  .feature-main-body{position:relative;z-index:2;padding:34px;}
  .feature-main-body h3{color:#fff;font-size:clamp(20px,2.4vw,28px);margin-bottom:10px;}
  .feature-main-body p{color:rgba(255,255,255,.76);font-size:14px;max-width:44em;}
  .feature-side{display:grid;grid-template-rows:1fr 1fr;gap:24px;}
  .mini-card{
    display:grid;grid-template-columns:132px minmax(0,1fr);gap:16px;
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    padding:14px;box-shadow:var(--shadow);
    transition:transform .24s ease,box-shadow .24s ease;
  }
  .mini-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
  .mini-card img{width:100%;height:100%;min-height:100px;object-fit:cover;border-radius:14px;}
  .mini-card h4{font-size:16px;line-height:1.5;}
  .mini-card p{font-size:13px;color:var(--muted);margin-top:6px;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
  .mini-card .meta-row{margin-top:10px;font-size:12px;}

  /* ---------- FAQ ---------- */
  .faq-list{display:flex;flex-direction:column;gap:14px;max-width:880px;}
  .faq-item{
    background:#fff;border:1px solid var(--line);border-radius:16px;
    padding:0 22px;box-shadow:0 8px 24px rgba(13,14,22,.05);
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .faq-item[open]{border-color:rgba(108,77,255,.32);box-shadow:var(--shadow);}
  .faq-item summary{
    list-style:none;cursor:pointer;
    display:flex;align-items:center;gap:12px;
    padding:18px 0;font-size:16px;font-weight:700;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary::before{
    content:"";width:14px;height:14px;border-radius:50%;
    background:var(--grad);flex:0 0 auto;
  }
  .faq-item summary::after{
    content:"+";margin-left:auto;font-size:20px;font-weight:500;color:var(--violet);
    transition:transform .2s ease;
  }
  .faq-item[open] summary::after{transform:rotate(45deg);}
  .faq-answer{padding:0 0 20px 26px;color:var(--muted);font-size:15px;}

  /* ---------- CTA ---------- */
  .cta-band{
    border-radius:var(--radius-lg);
    background:linear-gradient(135deg,#6C4DFF 0%,#18E0B8 100%);
    padding:56px;color:#fff;
    display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:34px;align-items:center;
    box-shadow:0 24px 60px rgba(108,77,255,.30);
  }
  .cta-band h2{color:#fff;font-size:clamp(24px,3.2vw,36px);margin-bottom:12px;}
  .cta-band p{color:rgba(255,255,255,.86);font-size:15px;}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}
  .cta-band .btn-outline{background:rgba(255,255,255,.94);border-color:transparent;}
  .cta-band .btn-outline:hover{color:var(--violet);}
  .subscribe{background:rgba(13,14,22,.24);border:1px solid rgba(255,255,255,.28);border-radius:var(--radius);padding:24px;}
  .subscribe h3{color:#fff;font-size:17px;margin-bottom:8px;}
  .subscribe p{color:rgba(255,255,255,.82);font-size:13px;margin-bottom:16px;}
  .subscribe-form{display:flex;gap:10px;flex-wrap:wrap;}
  .subscribe-form input{
    flex:1 1 180px;min-width:0;
    padding:12px 16px;border-radius:var(--radius-sm);
    border:1px solid rgba(255,255,255,.35);
    background:rgba(255,255,255,.94);color:var(--text);
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .subscribe-form input::placeholder{color:#9CA3AF;}
  .subscribe-form input:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(24,224,184,.28);outline:none;}
  .subscribe-form input:invalid:not(:placeholder-shown){border-color:var(--coral);}
  .subscribe-form .btn-primary{background:#0D0E16;box-shadow:none;}
  .subscribe-form .btn-primary:hover{background:#1A1440;box-shadow:none;}

  /* ---------- 页脚 ---------- */
  .site-footer{
    background:var(--ink);color:rgba(255,255,255,.66);
    margin-top:96px;position:relative;
  }
  .site-footer::before{
    content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--grad);
  }
  .footer-grid{
    display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:34px;
    padding:70px 0 40px;
  }
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
  .footer-brand .brand-name{color:#fff;font-size:18px;}
  .footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.60);max-width:30em;}
  .footer-tagline{
    display:inline-flex;margin-top:16px;padding:5px 14px;border-radius:var(--pill);
    font-size:13px;color:var(--cyan);border:1px solid rgba(24,224,184,.35);
  }
  .footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;}
  .footer-col ul{display:flex;flex-direction:column;gap:11px;}
  .footer-col a{font-size:14px;color:rgba(255,255,255,.64);}
  .footer-col a:hover{color:var(--cyan);}
  .footer-bottom{
    border-top:1px solid rgba(255,255,255,.10);
    padding:22px 0 34px;
    display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
    font-size:13px;color:rgba(255,255,255,.48);
  }
  .footer-bottom a:hover{color:var(--cyan);}
  .to-top{
    display:inline-flex;align-items:center;gap:6px;
    padding:8px 16px;border-radius:var(--pill);
    border:1px solid rgba(255,255,255,.22);color:rgba(255,255,255,.80);
  }
  .to-top:hover{color:#fff;background:rgba(255,255,255,.10);}

  /* ---------- 响应式 ---------- */
  @media (max-width:1180px){
    .nav-left,.nav-right{gap:16px;}
    .nav-link{font-size:14px;}
  }
  @media (max-width:1024px){
    .section{padding:64px 0;}
    .section--tight{padding:52px 0;}
    .nav-inner{grid-template-columns:1fr auto 1fr;}
    .nav-left,.nav-right{display:none;}
    .nav-toggle{display:inline-flex;}
    .editorial{grid-template-columns:1fr;}
    .side-panel{position:static;}
    .topic-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .feature-split{grid-template-columns:1fr;}
    .cta-band{grid-template-columns:1fr;padding:40px;}
    .footer-grid{grid-template-columns:1fr 1fr;padding:56px 0 32px;}
  }
  @media (max-width:768px){
    .stats-strip{grid-template-columns:repeat(2,1fr);padding:24px;gap:18px;}
    .editorial-item{grid-template-columns:1fr;}
    .editorial-thumb{aspect-ratio:16/9;}
    .feature-main{min-height:340px;}
    .feature-main-body{padding:24px;}
    .site-footer{margin-top:64px;}
  }
  @media (max-width:640px){
    .site-container{padding:0 16px;}
    .section{padding:48px 0;}
    .section--tight{padding:44px 0;}
    .hero{padding:104px 0 48px;min-height:72vh;}
    .topic-grid{grid-template-columns:1fr;}
    .feature-side{grid-template-rows:auto;gap:16px;}
    .mini-card{grid-template-columns:104px minmax(0,1fr);}
    .cta-band{padding:28px;border-radius:24px;}
    .faq-item{padding:0 16px;}
    .faq-answer{padding-left:0;}
    .footer-grid{grid-template-columns:1fr;gap:26px;}
    .footer-bottom{flex-direction:column;align-items:flex-start;}
    .subscribe{padding:18px;}
  }