/* roulang page: index */
:root{
  --bg:#0A0A0F;
  --surface-2:#12121A;
  --surface-3:#1A1A24;
  --light:#F4F5F7;
  --primary:#23D3B0;
  --primary-dim:rgba(35,211,176,.14);
  --accent:#FF7A3D;
  --violet:#9A8CFF;
  --text:#F2F4F7;
  --text-2:#A7ADBB;
  --text-3:#6C7280;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(35,211,176,.3);
  --r-pill:999px;
  --r-card:18px;
  --r-cover:24px;
  --r-inner:14px;
  --sh-1:0 1px 0 rgba(255,255,255,.04),0 8px 24px rgba(0,0,0,.45);
  --sh-2:0 18px 40px rgba(0,0,0,.55);
  --ease:cubic-bezier(.2,.7,.3,1);
  --bs-primary:#23D3B0;
  --bs-body-bg:#0A0A0F;
  --bs-body-color:#F2F4F7;
  --bs-link-color:#23D3B0;
  --bs-link-hover-color:#7BEBD5;
  --bs-border-color:rgba(255,255,255,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:'Noto Sans SC','Source Han Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:#7BEBD5}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:-.01em;color:var(--text)}
p{margin:0 0 1.2em}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.num,.en{font-family:'Rajdhani','Chakra Petch',sans-serif;font-weight:600;letter-spacing:.02em}
.container-xl{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.container-read{max-width:820px;margin:0 auto;padding:0 24px}
.section{padding:110px 0;position:relative}
.section-sm{padding:72px 0}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px}
.section-head h2{font-size:32px;margin-top:10px}
.eyebrow{display:inline-block;font-size:12px;letter-spacing:.18em;color:var(--primary);text-transform:uppercase}
.section-desc{max-width:520px;color:var(--text-2);font-size:15px;margin:0;line-height:1.8}
.link-more{font-size:15px;color:var(--primary);position:relative}
.link-more::after{content:"";position:absolute;left:0;bottom:-4px;width:0;height:1px;background:var(--primary);transition:width .16s var(--ease)}
.link-more:hover::after{width:100%}

/* ===== header / 悬浮胶囊导航 ===== */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;padding:14px 0;transition:padding .22s var(--ease)}
.site-header.scrolled{padding:8px 0}
.nav-shell{
  width:100%;max-width:1200px;margin:0 auto;
  display:flex;align-items:center;gap:18px;
  padding:0 12px 0 18px;height:68px;
  background:rgba(18,18,26,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  transition:height .22s var(--ease),background .22s var(--ease);
}
.site-header.scrolled .nav-shell{height:60px;background:rgba(18,18,26,.88)}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);flex:0 0 auto}
.brand:hover{color:var(--text)}
.brand-mark{width:30px;height:30px;border-radius:9px;background:linear-gradient(140deg,var(--primary),#0f6f60);display:flex;align-items:center;justify-content:center;color:#04140f;font-size:14px;box-shadow:0 6px 16px rgba(35,211,176,.28)}
.brand-text{font-size:16px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{display:block;padding:8px 14px;border-radius:var(--r-pill);font-size:14px;color:var(--text-2);white-space:nowrap;transition:background .18s var(--ease),color .18s var(--ease)}
.nav-link:hover{background:rgba(255,255,255,.08);color:var(--primary)}
.nav-link.active{color:var(--primary);background:rgba(35,211,176,.1)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn{padding:10px 22px;font-size:14px;border-radius:var(--r-pill);font-weight:500;border:1px solid transparent;transition:all .2s var(--ease);display:inline-flex;align-items:center;gap:8px;line-height:1.4}
.btn-glow{background:var(--primary);color:#04140f}
.btn-glow:hover{background:#43e3c4;color:#04140f;box-shadow:0 10px 26px rgba(35,211,176,.35);transform:translateY(-1px)}
.btn-outline{background:transparent;border-color:rgba(255,255,255,.18);color:var(--text)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-1px)}
.btn-accent{background:var(--accent);color:#241006}
.btn-accent:hover{background:#ff8f57;color:#241006;transform:translateY(-1px)}
.nav-toggle{display:none;width:42px;height:42px;border-radius:var(--r-pill);background:rgba(255,255,255,.06);border:1px solid var(--line);color:var(--text);align-items:center;justify-content:center}
.nav-toggle:hover{background:rgba(255,255,255,.12)}

/* ===== Hero ===== */
.hero{position:relative;min-height:620px;display:flex;align-items:center;overflow:hidden;padding:150px 0 90px}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center 30%;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(10,10,15,.96) 0%,rgba(10,10,15,.86) 42%,rgba(10,10,15,.28) 100%);
}
.hero-stars{position:absolute;inset:0;opacity:.25;background-image:radial-gradient(1.4px 1.4px at 18% 24%,#fff,transparent),radial-gradient(1.2px 1.2px at 62% 12%,#fff,transparent),radial-gradient(1.6px 1.6px at 82% 58%,#fff,transparent),radial-gradient(1.1px 1.1px at 34% 74%,#fff,transparent),radial-gradient(1.3px 1.3px at 52% 46%,#fff,transparent);pointer-events:none}
.hero-inner{position:relative;z-index:2}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 16px;border-radius:var(--r-pill);border:1px solid rgba(35,211,176,.35);background:rgba(35,211,176,.08);color:var(--primary);font-size:13px;margin-bottom:22px}
.hero h1{font-size:48px;max-width:640px}
.hero-sub{margin:20px 0 0;max-width:520px;font-size:17px;color:var(--text-2);line-height:1.85}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-stats{display:flex;flex-wrap:wrap;gap:38px;margin-top:48px;padding-top:26px;border-top:1px solid var(--line)}
.hero-stats .stat{display:flex;flex-direction:column}
.hero-stats .num{font-size:26px;color:var(--primary);line-height:1.1}
.hero-stats .stat-label{font-size:13px;color:var(--text-3);margin-top:4px}

/* ===== 合集目录 ===== */
.index-list{border-top:1px solid var(--line)}
.index-row{display:flex;align-items:center;gap:18px;min-height:76px;padding:14px 12px;border-bottom:1px solid rgba(255,255,255,.06);color:var(--text);transition:background .18s var(--ease)}
.index-row:hover{background:rgba(255,255,255,.04);color:var(--text)}
.index-no{font-size:20px;color:var(--primary);width:34px;flex:0 0 auto;opacity:.9}
.index-row:nth-child(2) .index-no{opacity:.78}
.index-row:nth-child(3) .index-no{opacity:.66}
.index-row:nth-child(4) .index-no{opacity:.54}
.index-row:nth-child(5) .index-no{opacity:.42}
.index-main{flex:1 1 auto;min-width:0}
.index-title{font-size:17px;font-weight:700;display:block}
.index-sub{font-size:13px;color:var(--text-3);display:block;margin-top:2px}
.index-arrow{color:var(--text-3);transition:transform .2s var(--ease),color .2s var(--ease)}
.index-row:hover .index-arrow{transform:translateX(4px);color:var(--primary)}
.preview{position:relative;border-radius:var(--r-cover);overflow:hidden;box-shadow:var(--sh-1);margin:0}
.preview img{width:100%;aspect-ratio:16/10;object-fit:cover}
.preview figcaption{position:absolute;left:0;right:0;bottom:0;padding:22px 24px;background:linear-gradient(180deg,transparent,rgba(8,8,12,.92));font-size:14px;color:var(--text-2)}
.preview figcaption strong{display:block;color:var(--text);font-size:16px;margin-bottom:4px}

/* ===== 卡片 ===== */
.card-x{background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);height:100%;display:flex;flex-direction:column;transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease)}
.card-x:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,255,255,.14)}
.card-cover{overflow:hidden}
.card-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s var(--ease)}
.card-x:hover .card-cover img{transform:scale(1.04)}
.card-body-x{padding:22px;display:flex;flex-direction:column;flex:1 1 auto}
.tag{display:inline-flex;align-items:center;padding:3px 12px;border-radius:var(--r-pill);border:1px solid rgba(255,255,255,.16);font-size:12px;color:var(--text-2);width:fit-content}
.tag-hot{border-color:rgba(255,122,61,.5);color:var(--accent);background:rgba(255,122,61,.08)}
.tag-violet{border-color:rgba(154,140,255,.45);color:var(--violet)}
.card-title{font-size:19px;margin:14px 0 0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-x:hover .card-title{color:var(--primary)}
.card-text{font-size:14px;color:var(--text-2);margin:10px 0 0;line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{margin-top:auto;padding-top:18px;font-size:12px;color:var(--text-3);display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.card-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--text-3)}
.feature-card{position:relative}
.feature-card .card-cover img{aspect-ratio:16/9}
.badge-float{position:absolute;top:16px;left:16px;z-index:2;padding:4px 12px;border-radius:var(--r-pill);background:var(--accent);color:#241006;font-size:12px;font-weight:700}
.feature-card .card-title{font-size:24px}

/* ===== 最新信息列表 ===== */
.list-row{display:flex;gap:22px;padding:20px;border:1px solid var(--line);border-radius:var(--r-card);background:var(--surface-2);box-shadow:var(--sh-1);transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);color:inherit;height:100%}
.list-row:hover{transform:translateY(-4px);border-color:rgba(255,255,255,.14);box-shadow:var(--sh-2);color:inherit}
.list-thumb{flex:0 0 160px;border-radius:var(--r-inner);overflow:hidden}
.list-thumb img{width:100%;height:100%;min-height:108px;object-fit:cover}
.list-main{flex:1 1 auto;min-width:0;display:flex;flex-direction:column}
.list-title{font-size:18px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.list-row:hover .list-title{color:var(--primary)}
.list-text{font-size:14px;color:var(--text-2);margin:8px 0 0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.75}
.empty-state{border:1px dashed rgba(35,211,176,.4);background:rgba(35,211,176,.06);border-radius:var(--r-card);min-height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;text-align:center;padding:30px 22px}
.empty-state i{font-size:30px;color:var(--primary);opacity:.7}
.empty-state p{margin:0;color:var(--text-2);font-size:15px}

/* ===== 相关推荐 横向滚动 ===== */
.rail-wrap{position:relative}
.rail{display:grid;grid-auto-flow:column;grid-template-rows:repeat(2,auto);gap:16px;overflow-x:auto;padding-bottom:10px;scrollbar-width:none}
.rail::-webkit-scrollbar{display:none}
.rail-card{width:320px;display:flex;gap:14px;align-items:center;padding:14px;border:1px solid var(--line);border-radius:var(--r-inner);background:var(--surface-2);color:inherit;transition:border-color .2s var(--ease),transform .2s var(--ease)}
.rail-card:hover{border-color:var(--line-strong);transform:translateY(-3px);color:inherit}
.rail-card img{width:96px;height:72px;object-fit:cover;border-radius:12px;flex:0 0 auto}
.rail-info{min-width:0}
.rail-title{font-size:15px;font-weight:700;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rail-time{font-size:12px;color:var(--text-3);margin-top:6px;display:block}

/* ===== FAQ ===== */
.faq-item{background:var(--surface-2);border-radius:var(--r-inner);margin-bottom:12px;overflow:hidden;border-left:3px solid transparent;transition:background .2s var(--ease),border-color .2s var(--ease)}
.faq-item.open{background:var(--surface-3);border-left-color:var(--primary)}
.faq-q{width:100%;background:none;border:0;text-align:left;padding:20px 22px;color:var(--text);font-size:17px;font-weight:500;display:flex;align-items:center;justify-content:space-between;gap:16px;cursor:pointer}
.faq-q:hover{color:var(--primary)}
.faq-icon{position:relative;width:18px;height:18px;flex:0 0 auto}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--primary);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease)}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-item.open .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease)}
.faq-item.open .faq-a{max-height:340px}
.faq-a p{margin:0;padding:0 22px 22px;color:var(--text-2);font-size:15px;line-height:1.85}

/* ===== CTA 条带 ===== */
.cta-band{background:linear-gradient(120deg,#101a1c 0%,#12121A 60%,#141420 100%);border:1px solid var(--line);border-radius:var(--r-cover);padding:44px 40px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;box-shadow:var(--sh-1)}
.cta-band h2{font-size:24px}
.cta-band p{margin:8px 0 0;color:var(--text-2);font-size:15px}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px}
.icon-round{width:40px;height:40px;border-radius:50%;border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;color:var(--text-2);background:rgba(255,255,255,.03)}
.icon-round:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn-saved{background:var(--primary)!important;color:#04140f!important;border-color:var(--primary)!important}

/* ===== 页脚 ===== */
.site-footer{background:#08080C;border-top:1px solid var(--line);padding:70px 0 26px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px}
.footer-grid h4{font-size:15px;margin-bottom:18px;color:var(--text)}
.footer-about p{font-size:14px;color:var(--text-3);line-height:1.85;margin:16px 0 0}
.footer-links li{margin-bottom:11px}
.footer-links a{font-size:14px;color:var(--text-2)}
.footer-links a:hover{color:var(--primary)}
.footer-contact p{font-size:14px;color:var(--text-2);margin:0 0 10px}
.footer-bottom{margin-top:52px;padding-top:22px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:13px;color:var(--text-3)}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.footer-tags span{font-size:12px;color:var(--text-3);border:1px solid var(--line);border-radius:var(--r-pill);padding:3px 12px}

/* ===== 响应式 ===== */
@media (max-width:1199.98px){
  .hero h1{font-size:42px}
  .hero-stats{gap:28px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
}
@media (max-width:991.98px){
  .section{padding:84px 0}
  .nav-links{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(8,8,12,.98);flex-direction:column;align-items:stretch;padding:96px 22px 30px;gap:0;transform:translateY(-100%);transition:transform .26s var(--ease);margin-left:0;z-index:-1}
  .nav-links.open{transform:translateY(0)}
  .nav-link{font-size:16px;height:48px;display:flex;align-items:center;border-radius:12px;color:var(--text)}
  .nav-toggle{display:inline-flex}
  .nav-shell{padding-right:8px}
  .nav-actions .btn{display:none}
  .hero{min-height:auto;padding:130px 0 72px}
  .hero h1{font-size:36px}
  .hero-bg::after{background:linear-gradient(180deg,rgba(10,10,15,.94) 0%,rgba(10,10,15,.82) 55%,rgba(10,10,15,.94) 100%)}
  .preview{margin-bottom:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .section{padding:64px 0}
  .container-xl{padding:0 18px}
  .section-head h2{font-size:26px}
  .hero h1{font-size:32px}
  .hero-sub{font-size:16px}
  .hero-stats{gap:22px;margin-top:36px}
  .hero-stats .num{font-size:22px}
  .list-row{flex-direction:column;gap:16px}
  .list-thumb{flex:0 0 auto;width:100%}
  .list-thumb img{aspect-ratio:16/9;min-height:0}
  .cta-band{padding:30px 24px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto;justify-content:center}
  .rail-card{width:280px}
  .feature-card .card-title{font-size:20px}
  .footer-grid{grid-template-columns:1fr}
}
@media (max-width:519.98px){
  .section{padding:56px 0}
  .hero{padding-top:118px}
  .hero h1{font-size:28px}
  .hero-badge{font-size:12px}
  .index-no{width:28px;font-size:18px}
  .index-sub{display:none}
  .rail-card{width:250px}
  .faq-q{font-size:16px;padding:16px 18px}
  .faq-a p{padding:0 18px 18px}
}

/* roulang page: article */
:root{
  --bg:#0A0A0F;
  --surface:#12121A;
  --surface-2:#1A1A24;
  --surface-3:#F4F5F7;
  --primary:#23D3B0;
  --primary-dim:rgba(35,211,176,.14);
  --accent:#FF7A3D;
  --accent-dim:rgba(255,122,61,.14);
  --violet:#9A8CFF;
  --text:#F2F4F7;
  --muted:#A7ADBB;
  --weak:#6C7280;
  --ink:#14161C;
  --ink-soft:#4A4F5A;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --primary-line:rgba(35,211,176,.3);
  --radius-pill:999px;
  --radius-card:18px;
  --radius-lg:24px;
  --radius-sm:12px;
  --sh-1:0 1px 0 rgba(255,255,255,.04) inset,0 8px 24px rgba(0,0,0,.45);
  --sh-2:0 1px 0 rgba(255,255,255,.06) inset,0 18px 40px rgba(0,0,0,.55);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:200ms var(--ease);
  --container:1200px;
  --reader:820px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:'Noto Sans SC','Source Han Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  font-size:17px;
  line-height:1.85;
  font-weight:400;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    radial-gradient(1.2px 1.2px at 12% 18%,rgba(255,255,255,.22) 50%,transparent 51%),
    radial-gradient(1px 1px at 68% 8%,rgba(255,255,255,.18) 50%,transparent 51%),
    radial-gradient(1.4px 1.4px at 84% 42%,rgba(35,211,176,.22) 50%,transparent 51%),
    radial-gradient(1px 1px at 32% 72%,rgba(255,255,255,.16) 50%,transparent 51%),
    radial-gradient(1.2px 1.2px at 52% 88%,rgba(154,140,255,.2) 50%,transparent 51%),
    radial-gradient(1px 1px at 92% 76%,rgba(255,255,255,.14) 50%,transparent 51%);
  opacity:.55;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--t),border-color var(--t)}
a:hover{color:var(--primary)}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.01em;font-weight:700}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.en,.num{font-family:'Chakra Petch','Rajdhani',sans-serif;font-weight:600;letter-spacing:.02em}
.container-xl{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
  position:relative;
  z-index:1;
}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1040;
  padding:14px 0;
  transition:padding var(--t),background var(--t);
}
.site-header.is-scrolled{padding:8px 0}
.nav-shell{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 18px 0 18px;
  height:68px;
  display:flex;
  align-items:center;
  gap:18px;
  border-radius:var(--radius-pill);
  background:rgba(18,18,26,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
  transition:height var(--t),background var(--t);
}
.site-header.is-scrolled .nav-shell{
  height:60px;
  background:rgba(12,12,18,.88);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand:hover{color:var(--text)}
.brand-mark{
  width:36px;height:36px;
  display:grid;place-items:center;
  border-radius:50%;
  background:linear-gradient(140deg,var(--primary),#0f8f7a);
  color:#04140f;
  font-size:15px;
  box-shadow:0 0 0 1px rgba(35,211,176,.35),0 6px 18px rgba(35,211,176,.22);
}
.brand-text{
  font-size:18px;
  font-weight:700;
  letter-spacing:.01em;
  white-space:nowrap;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:2px;
  margin-left:auto;
}
.nav-link{
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 14px;
  border-radius:var(--radius-pill);
  font-size:15px;
  color:var(--muted);
  transition:background var(--t),color var(--t);
}
.nav-link:hover{background:rgba(255,255,255,.08);color:var(--primary)}
.nav-link.active{background:rgba(35,211,176,.12);color:var(--primary)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--radius-pill);
  border:1px solid transparent;
  font-size:15px;
  font-weight:500;
  padding:0 22px;
  height:42px;
  cursor:pointer;
  transition:transform var(--t),background var(--t),color var(--t),border-color var(--t),box-shadow var(--t);
}
.btn:active{transform:translateY(1px)}
.btn-glow{
  background:var(--primary);
  color:#04140f;
  box-shadow:0 8px 22px rgba(35,211,176,.26);
}
.btn-glow:hover{background:#31e6c1;color:#04140f;box-shadow:0 12px 30px rgba(35,211,176,.34)}
.btn-ghost{
  background:transparent;
  border-color:var(--line-strong);
  color:var(--text);
}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);background:rgba(35,211,176,.08)}
.btn-outline-primary{
  background:transparent;
  border-color:var(--primary-line);
  color:var(--primary);
}
.btn-outline-primary:hover{background:var(--primary);color:#04140f;border-color:var(--primary)}
.btn.is-saved{background:var(--accent);color:#1a0b03;box-shadow:0 8px 22px rgba(255,122,61,.3)}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line-strong);
  background:transparent;
  color:var(--text);
  cursor:pointer;
}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary)}

/* ---------- 面包屑 / 文章头 ---------- */
.article-main{padding-top:118px;position:relative;z-index:1}
.breadcrumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--weak);
  margin-bottom:26px;
}
.breadcrumbs .sep{color:rgba(255,255,255,.18)}
.breadcrumbs .current{color:var(--primary)}
.breadcrumbs a:hover{color:var(--primary)}
.article-head{max-width:var(--reader);margin:0 auto;text-align:left}
.col-badge{
  display:inline-flex;
  align-items:center;
  gap:7px;
  height:28px;
  padding:0 13px;
  border-radius:var(--radius-pill);
  border:1px solid var(--primary-line);
  background:var(--primary-dim);
  color:var(--primary);
  font-size:12px;
  letter-spacing:.04em;
  margin-bottom:18px;
}
.article-head h1{
  font-size:44px;
  font-weight:700;
  margin-bottom:18px;
}
.meta-line{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--weak);
  padding-bottom:26px;
  border-bottom:1px solid var(--line);
}
.meta-line .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.22)}
.meta-line .num{color:var(--muted)}
.article-cover{
  max-width:1000px;
  margin:32px auto 0;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
  position:relative;
}
.article-cover img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
}
.article-cover::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,10,15,.35),rgba(10,10,15,0) 55%);
  pointer-events:none;
}
.cover-caption{
  max-width:1000px;
  margin:12px auto 0;
  font-size:13px;
  color:var(--weak);
  text-align:center;
}

/* ---------- 正文 ---------- */
.section{padding:72px 0}
.article-body-wrap{
  max-width:var(--reader);
  margin:0 auto;
}
.article-body{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:40px 44px 44px;
  font-size:17px;
  line-height:1.9;
  color:#E4E8EE;
}
.article-body h2{
  font-size:30px;
  margin:44px 0 18px;
  padding-left:16px;
  position:relative;
  color:var(--text);
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:.22em;
  width:4px;height:20px;
  border-radius:2px;
  background:var(--primary);
}
.article-body h2:first-child{margin-top:0}
.article-body h3{
  font-size:22px;
  margin:32px 0 14px;
  color:var(--text);
}
.article-body h4{font-size:18px;margin:24px 0 12px;color:var(--muted)}
.article-body p{margin:0 0 1.2em;color:#DCE1E9}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:0}
.article-body ul li{
  position:relative;
  padding-left:20px;
  margin-bottom:.6em;
  color:#DCE1E9;
}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:2px;top:.72em;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--primary);
}
.article-body ol{counter-reset:li;padding-left:0}
.article-body ol li{
  position:relative;
  counter-increment:li;
  padding-left:34px;
  margin-bottom:.7em;
  color:#DCE1E9;
}
.article-body ol li::before{
  content:counter(li,decimal-leading-zero);
  position:absolute;left:0;top:0;
  font-family:'Chakra Petch',sans-serif;
  font-size:14px;
  color:var(--primary);
  font-weight:600;
}
.article-body blockquote{
  margin:24px 0;
  padding:18px 22px;
  border-left:3px solid var(--primary);
  background:rgba(255,255,255,.04);
  border-radius:0 14px 14px 0;
  color:#CDD3DC;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{
  border-radius:16px;
  margin:26px auto;
  border:1px solid var(--line);
}
.article-body a{color:var(--primary);border-bottom:1px solid var(--primary-line)}
.article-body a:hover{color:#4ff0cd;border-bottom-color:var(--primary)}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:24px 0;
  font-size:15px;
  background:var(--surface-2);
  border-radius:14px;
  overflow:hidden;
}
.article-body th{
  background:rgba(35,211,176,.08);
  color:var(--primary);
  text-align:left;
  font-weight:600;
  padding:14px 16px;
  border-bottom:1px solid var(--line);
}
.article-body td{
  padding:14px 16px;
  border-bottom:1px solid var(--line);
  color:#D3D8E0;
}
.article-body tr:last-child td{border-bottom:none}
.article-body strong{color:#FFFFFF;font-weight:700}
.article-body code{
  background:rgba(35,211,176,.1);
  color:#7FF0D8;
  padding:2px 7px;
  border-radius:6px;
  font-size:14px;
}
.empty-state{
  text-align:center;
  padding:56px 28px;
  border-radius:var(--radius-card);
  border:1px dashed var(--primary-line);
  background:rgba(35,211,176,.06);
}
.empty-state .icon{font-size:30px;color:var(--primary);margin-bottom:14px}
.empty-state h2{font-size:24px;margin-bottom:10px;padding:0}
.empty-state h2::before{display:none}
.empty-state p{color:var(--muted);margin-bottom:22px}

/* ---------- 标签 / 分享 ---------- */
.tag-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:32px;
}
.tag{
  display:inline-flex;
  align-items:center;
  height:32px;
  padding:0 15px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line-strong);
  font-size:13px;
  color:var(--muted);
  transition:border-color var(--t),color var(--t),background var(--t);
}
.tag:hover{border-color:var(--primary);color:var(--primary);background:rgba(35,211,176,.07)}
.share-band{
  max-width:1000px;
  margin:56px auto 0;
  border-radius:var(--radius-card);
  background:linear-gradient(100deg,rgba(35,211,176,.12),rgba(26,26,36,.9) 55%);
  border:1px solid var(--line);
  padding:26px 30px;
  display:flex;
  align-items:center;
  gap:24px;
  flex-wrap:wrap;
}
.share-band .txt{flex:1 1 240px;min-width:220px}
.share-band h3{font-size:19px;margin-bottom:6px}
.share-band p{font-size:14px;color:var(--muted)}
.share-band .acts{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.icon-btn{
  width:40px;height:40px;
  border-radius:50%;
  display:grid;place-items:center;
  border:1px solid var(--line-strong);
  color:var(--muted);
  background:transparent;
  cursor:pointer;
  transition:border-color var(--t),color var(--t),background var(--t);
}
.icon-btn:hover{border-color:var(--primary);color:var(--primary);background:rgba(35,211,176,.08)}

/* ---------- 相关推荐 ---------- */
.sec-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:30px;
}
.sec-head .eyebrow{
  font-size:12px;
  letter-spacing:.18em;
  color:var(--primary);
  margin-bottom:8px;
}
.sec-head h2{font-size:30px}
.sec-head .more{font-size:14px;color:var(--primary);border-bottom:1px solid transparent}
.sec-head .more:hover{border-bottom-color:var(--primary)}
.rel-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
}
.rel-card{
  display:flex;
  gap:14px;
  padding:16px;
  border-radius:var(--radius-card);
  background:var(--surface);
  border:1px solid var(--line);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--primary-line)}
.rel-card .thumb{
  flex:0 0 96px;
  width:96px;height:96px;
  border-radius:14px;
  overflow:hidden;
  border:1px solid var(--line);
}
.rel-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.rel-card:hover .thumb img{transform:scale(1.04)}
.rel-card h3{
  font-size:16px;
  line-height:1.5;
  margin-bottom:8px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.rel-card:hover h3{color:var(--primary)}
.rel-card .time{font-size:12px;color:var(--weak)}

/* ---------- 编号目录 ---------- */
.index-list{border-top:1px solid var(--line)}
.index-item{
  display:flex;
  align-items:center;
  gap:20px;
  min-height:76px;
  padding:14px 12px;
  border-bottom:1px solid rgba(255,255,255,.06);
  transition:background var(--t);
  border-radius:10px;
}
.index-item:hover{background:rgba(255,255,255,.04)}
.index-item .no{
  font-size:20px;
  color:var(--primary);
  opacity:.5;
  flex:0 0 40px;
  transition:opacity var(--t);
}
.index-item:hover .no{opacity:1}
.index-item .body{flex:1 1 auto;min-width:0}
.index-item h3{font-size:18px;margin-bottom:4px}
.index-item:hover h3{color:var(--primary)}
.index-item p{font-size:14px;color:var(--weak);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.index-item .arrow{
  color:var(--weak);
  transition:transform var(--t),color var(--t);
}
.index-item:hover .arrow{transform:translateX(4px);color:var(--primary)}

/* ---------- 返回 ---------- */
.back-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
  margin-top:56px;
  padding-top:28px;
  border-top:1px solid var(--line);
}
.back-link{font-size:14px;color:var(--muted)}
.back-link i{margin-right:8px}
.back-link:hover{color:var(--primary)}
.to-top{
  width:46px;height:46px;
  border-radius:50%;
  border:1px solid var(--line-strong);
  background:var(--surface);
  color:var(--text);
  display:grid;place-items:center;
  cursor:pointer;
  transition:border-color var(--t),color var(--t),transform var(--t);
}
.to-top:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-3px)}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#08080C;
  border-top:1px solid var(--line);
  margin-top:96px;
  padding:72px 0 0;
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.3fr;
  gap:40px;
}
.footer-about .brand{margin-bottom:16px}
.footer-about p{font-size:14px;color:var(--muted);line-height:1.85}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.footer-tags span{
  font-size:12px;
  color:var(--weak);
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  padding:4px 12px;
}
.site-footer h4{
  font-size:16px;
  margin-bottom:18px;
  color:var(--text);
}
.footer-links li{margin-bottom:11px}
.footer-links a{font-size:14px;color:var(--muted)}
.footer-links a:hover{color:var(--primary)}
.footer-contact p{font-size:14px;color:var(--muted);margin-bottom:12px;line-height:1.8}
.footer-bottom{
  margin-top:56px;
  border-top:1px solid rgba(255,255,255,.06);
  padding:22px 0 26px;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  font-size:13px;
  color:var(--weak);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .article-head h1{font-size:38px}
  .article-body h2{font-size:27px}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:991px){
  .nav-links{
    position:fixed;
    top:86px;left:18px;right:18px;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    background:rgba(12,12,18,.97);
    border:1px solid var(--line);
    border-radius:20px;
    padding:14px;
    box-shadow:var(--sh-2);
    max-height:0;
    overflow:hidden;
    opacity:0;
    visibility:hidden;
    transition:max-height var(--t),opacity var(--t),visibility var(--t);
  }
  .nav-links.is-open{max-height:520px;opacity:1;visibility:visible}
  .nav-link{height:48px;border-radius:12px;font-size:16px}
  .nav-toggle{display:grid;place-items:center}
  .article-main{padding-top:104px}
  .article-head h1{font-size:32px}
  .article-body{padding:30px 24px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-about{grid-column:1 / -1}
  .rel-grid{grid-template-columns:1fr}
  .share-band{padding:22px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container-xl{padding-left:18px;padding-right:18px}
  .brand-text{font-size:16px}
  .nav-actions .btn-glow{display:none}
  .article-head h1{font-size:28px}
  .article-body h2{font-size:23px}
  .article-body h3{font-size:19px}
  .article-cover{border-radius:18px}
  .section{padding:52px 0}
  .share-band .acts{width:100%}
  .share-band .acts .btn{flex:1 1 100%}
  .index-item p{white-space:normal}
  .sec-head{flex-direction:column;align-items:flex-start}
  .sec-head h2{font-size:24px}
}
@media (max-width:575px){
  .article-main{padding-top:96px}
  .nav-shell{height:60px;padding-right:12px}
  .nav-links{top:78px;left:12px;right:12px}
  .section{padding:44px 0}
  .article-body{padding:24px 18px 26px;border-radius:16px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
}

/* roulang page: category1 */
:root{
  --bg:#0A0A0F;
  --surface:#12121A;
  --surface-2:#1A1A24;
  --brand:#23D3B0;
  --brand-soft:rgba(35,211,176,.12);
  --brand-line:rgba(35,211,176,.32);
  --accent:#FF7A3D;
  --violet:#9A8CFF;
  --text:#F2F4F7;
  --text-2:#A7ADBB;
  --text-3:#6C7280;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.06);
  --pill:999px;
  --r-card:18px;
  --r-lg:24px;
  --r-md:12px;
  --shadow-1:0 1px 0 rgba(255,255,255,.04),0 8px 24px rgba(0,0,0,.45);
  --shadow-2:0 18px 40px rgba(0,0,0,.55);
  --ease:cubic-bezier(.2,.7,.3,1);
  --cn:'Noto Sans SC','Source Han Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --en:'Rajdhani','Chakra Petch','Noto Sans SC',sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--cn);
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--brand);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.01em;font-weight:700;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.container-xl{max-width:1200px;margin:0 auto;padding:0 24px;}
.num,.en{font-family:var(--en);font-variant-numeric:tabular-nums;letter-spacing:.02em;}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  padding:14px 0;
  transition:padding .2s var(--ease),background .2s var(--ease);
}
.nav-shell{
  max-width:1200px;margin:0 auto;padding:0 18px 0 24px;
  height:68px;display:flex;align-items:center;gap:20px;
  background:rgba(18,18,26,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:var(--pill);
  transition:height .22s var(--ease),background .22s var(--ease),box-shadow .22s var(--ease);
}
.site-header.is-scrolled{padding:8px 0;}
.site-header.is-scrolled .nav-shell{
  height:60px;background:rgba(18,18,26,.88);box-shadow:var(--shadow-1);
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand),#1aa88c);
  color:#05201a;font-size:15px;
  box-shadow:0 0 0 1px rgba(35,211,176,.35),0 6px 18px rgba(35,211,176,.25);
}
.brand-text{
  font-size:16px;font-weight:700;color:var(--text);white-space:nowrap;
}
.brand:hover .brand-text{color:var(--brand);}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  padding:8px 14px;border-radius:var(--pill);
  font-size:15px;color:var(--text-2);white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-link:hover{background:rgba(255,255,255,.08);color:var(--brand);}
.nav-link.active{background:rgba(255,255,255,.08);color:var(--brand);font-weight:500;}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--pill);border:1px solid transparent;
  font-size:15px;font-weight:500;padding:11px 22px;
  cursor:pointer;white-space:nowrap;
  transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-glow{
  background:var(--brand);color:#04231c;font-weight:700;padding:10px 20px;
  box-shadow:0 8px 22px rgba(35,211,176,.28);
}
.btn-glow:hover{background:#31e6c2;color:#04231c;transform:translateY(-1px);box-shadow:0 12px 28px rgba(35,211,176,.36);}
.btn-primary-glow{background:var(--brand);color:#04231c;font-weight:700;box-shadow:0 10px 26px rgba(35,211,176,.26);}
.btn-primary-glow:hover{background:#31e6c2;color:#04231c;transform:translateY(-2px);}
.btn-outline-glow{border-color:rgba(255,255,255,.22);color:var(--text);background:transparent;}
.btn-outline-glow:hover{border-color:var(--brand-line);color:var(--brand);background:var(--brand-soft);transform:translateY(-2px);}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:50%;
  background:rgba(255,255,255,.06);border:1px solid var(--line);
  color:var(--text);font-size:16px;cursor:pointer;
}

/* ---------- 面包屑 & Hero ---------- */
.hero-cat{position:relative;overflow:hidden;padding:140px 0 72px;background:var(--bg);}
.hero-cat .hero-bg{
  position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  opacity:.5;
}
.hero-cat .hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(10,10,15,.96) 0%,rgba(10,10,15,.86) 46%,rgba(10,10,15,.6) 100%);
}
.hero-cat .hero-stars{
  position:absolute;inset:0;opacity:.22;pointer-events:none;
  background-image:radial-gradient(1.5px 1.5px at 18% 32%,#fff,transparent),radial-gradient(1.5px 1.5px at 72% 18%,#fff,transparent),radial-gradient(1px 1px at 42% 72%,#fff,transparent),radial-gradient(1px 1px at 88% 62%,#fff,transparent);
  background-size:600px 400px,700px 500px,520px 380px,640px 460px;
}
.hero-inner{position:relative;z-index:2;}
.breadcrumb-nav{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:26px;flex-wrap:wrap;}
.breadcrumb-nav a{color:var(--text-3);}
.breadcrumb-nav a:hover{color:var(--brand);}
.breadcrumb-nav .sep{opacity:.5;}
.breadcrumb-nav .current{color:var(--brand);}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:var(--pill);
  background:var(--brand-soft);border:1px solid var(--brand-line);
  color:var(--brand);font-size:13px;font-weight:500;margin-bottom:22px;
}
.hero-cat h1{
  font-size:clamp(30px,4.2vw,48px);
  max-width:760px;margin-bottom:18px;
}
.hero-sub{
  max-width:620px;color:var(--text-2);font-size:17px;line-height:1.85;
}
.hero-cta{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap;}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section-alt{background:var(--surface);}
.sec-head{margin-bottom:44px;max-width:720px;}
.sec-tag{
  display:inline-block;font-size:12px;letter-spacing:.14em;
  color:var(--brand);font-family:var(--en);font-weight:700;margin-bottom:12px;
}
.sec-head h2{font-size:clamp(24px,3vw,32px);margin-bottom:14px;}
.sec-head p{color:var(--text-2);font-size:16px;}

/* ---------- 统计条 ---------- */
.stats-strip{
  border:1px solid var(--line);border-radius:var(--r-lg);
  background:var(--surface);box-shadow:var(--shadow-1);
  padding:8px 0;margin-top:-40px;position:relative;z-index:5;
}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.stat-item{padding:22px 24px;border-right:1px solid var(--line-2);}
.stat-item:last-child{border-right:0;}
.stat-value{font-size:30px;font-weight:700;color:var(--brand);line-height:1.1;}
.stat-value small{font-size:14px;color:var(--text-2);font-weight:400;margin-left:4px;}
.stat-label{font-size:13px;color:var(--text-3);margin-top:8px;}

/* ---------- 交错图文块 ---------- */
.path-block{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:44px 0;border-bottom:1px solid var(--line-2);
}
.path-block:last-child{border-bottom:0;padding-bottom:0;}
.path-block:first-child{padding-top:0;}
.path-block.reverse .path-copy{order:2;}
.path-block.reverse .path-media{order:1;}
.path-num{
  font-family:var(--en);font-size:15px;font-weight:700;color:var(--brand);
  letter-spacing:.14em;display:block;margin-bottom:14px;opacity:.9;
}
.path-copy h3{font-size:24px;margin-bottom:14px;}
.path-copy p{color:var(--text-2);font-size:16px;margin-bottom:18px;}
.path-list li{
  position:relative;padding-left:20px;color:var(--text-2);font-size:15px;margin-bottom:10px;
}
.path-list li::before{
  content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:50%;
  background:var(--brand);opacity:.85;
}
.path-media{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-1);}
.path-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s var(--ease);}
.path-media:hover img{transform:scale(1.04);}

/* ---------- 自查清单 ---------- */
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.check-card{
  background:var(--surface-2);border:1px solid var(--line);
  border-radius:var(--r-card);padding:24px 26px;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.check-card:hover{transform:translateY(-4px);border-color:var(--brand-line);box-shadow:var(--shadow-2);}
.check-card h3{font-size:18px;margin-bottom:10px;display:flex;align-items:center;gap:10px;}
.check-card h3 i{color:var(--brand);font-size:15px;}
.check-card p{color:var(--text-2);font-size:15px;}
.check-index{
  font-family:var(--en);font-size:12px;color:var(--text-3);
  letter-spacing:.12em;margin-bottom:12px;display:block;
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;}
.faq-item{
  background:var(--surface);border-radius:14px;margin-bottom:14px;
  border-left:3px solid transparent;overflow:hidden;
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.faq-item.is-open{background:#161622;border-left-color:var(--brand);}
.faq-q{
  width:100%;background:none;border:0;color:var(--text);
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;font-size:17px;font-weight:500;text-align:left;cursor:pointer;
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--brand);}
.faq-icon{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--brand-line);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:14px;
  transition:transform .25s var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(180deg);background:var(--brand);color:#04231c;border-color:var(--brand);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
.faq-a p{padding:0 24px 22px;color:var(--text-2);font-size:15.5px;}

/* ---------- 相关分类胶囊 ---------- */
.cat-pills{display:flex;flex-wrap:wrap;gap:12px;margin-top:6px;}
.cat-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 20px;border-radius:var(--pill);
  border:1px solid var(--line);color:var(--text-2);font-size:15px;
  transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.cat-pill:hover{border-color:var(--brand-line);color:var(--brand);background:var(--brand-soft);}
.cat-pill.is-current{border-color:var(--brand-line);color:var(--brand);background:var(--brand-soft);}
.cat-pill i{font-size:13px;}

/* ---------- 收藏 / 分享条带 ---------- */
.action-bar{
  background:linear-gradient(120deg,#12121A 0%,#15151F 60%,#181826 100%);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:34px 0;
}
.action-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.action-copy strong{display:block;font-size:19px;margin-bottom:6px;}
.action-copy span{color:var(--text-2);font-size:14.5px;}
.action-btns{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.btn-fav{border:1px solid var(--brand-line);color:var(--brand);background:transparent;}
.btn-fav:hover{background:var(--brand-soft);color:var(--brand);}
.btn-fav.is-active{background:var(--accent);border-color:var(--accent);color:#20100a;font-weight:700;}
.social-dots{display:flex;gap:10px;margin-left:6px;}
.social-dot{
  width:38px;height:38px;border-radius:50%;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  color:var(--text-2);font-size:14px;
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.social-dot:hover{border-color:var(--brand-line);color:var(--brand);transform:translateY(-2px);}

/* ---------- 页脚 ---------- */
.site-footer{background:#08080C;padding:72px 0 0;margin-top:0;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:48px;border-bottom:1px solid var(--line-2);
}
.footer-about p{color:var(--text-2);font-size:14.5px;margin-top:18px;max-width:340px;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.footer-tags span{
  font-size:12px;color:var(--text-3);padding:5px 12px;border-radius:var(--pill);
  border:1px solid var(--line);
}
.site-footer h4{font-size:16px;margin-bottom:18px;}
.footer-links li{margin-bottom:11px;}
.footer-links a{color:var(--text-2);font-size:14px;}
.footer-links a:hover{color:var(--brand);}
.footer-contact p{color:var(--text-2);font-size:14px;margin-bottom:12px;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 0 28px;color:var(--text-3);font-size:13px;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .nav-shell{max-width:960px;}
}
@media (max-width:991px){
  .nav-links{
    position:fixed;top:0;left:0;right:0;bottom:0;
    background:rgba(10,10,15,.98);backdrop-filter:blur(14px);
    flex-direction:column;align-items:stretch;gap:0;
    padding:110px 24px 32px;margin:0;
    transform:translateY(-100%);opacity:0;visibility:hidden;
    transition:transform .28s var(--ease),opacity .28s var(--ease),visibility .28s var(--ease);
    z-index:999;
  }
  .nav-links.is-open{transform:translateY(0);opacity:1;visibility:visible;}
  .nav-link{padding:0 4px;height:48px;display:flex;align-items:center;border-radius:0;font-size:16px;}
  .nav-toggle{display:flex;align-items:center;justify-content:center;}
  .nav-actions{margin-left:auto;}
  .site-header .nav-shell{padding:0 14px 0 18px;}
  .path-block{grid-template-columns:1fr;gap:28px;padding:36px 0;}
  .path-block.reverse .path-copy{order:1;}
  .path-block.reverse .path-media{order:2;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:64px 0;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container-xl{padding:0 18px;}
  .btn-glow{display:none;}
  .hero-cat{padding:118px 0 56px;}
  .stats-grid{grid-template-columns:1fr 1fr;}
  .stat-item{border-right:0;border-bottom:1px solid var(--line-2);}
  .stat-item:nth-child(odd){border-right:1px solid var(--line-2);}
  .stat-item:nth-last-child(-n+2){border-bottom:0;}
  .check-grid{grid-template-columns:1fr;}
  .action-inner{flex-direction:column;align-items:flex-start;}
  .action-btns{width:100%;}
  .action-btns .btn{flex:1 1 100%;}
  .social-dots{margin-left:0;}
  .section{padding:56px 0;}
  .footer-grid{grid-template-columns:1fr;}
  .hero-cta .btn{flex:1 1 100%;}
}
@media (max-width:519px){
  .section{padding:48px 0;}
  .sec-head{margin-bottom:32px;}
  .path-copy h3{font-size:20px;}
  .stat-value{font-size:24px;}
  .brand-text{font-size:15px;}
}

/* roulang page: category2 */
:root{
  --bg:#0A0A0F;
  --bg-2:#12121A;
  --bg-3:#1A1A24;
  --light:#F4F5F7;
  --primary:#23D3B0;
  --accent:#FF7A3D;
  --violet:#9A8CFF;
  --text:#F2F4F7;
  --muted:#A7ADBB;
  --dim:#6C7280;
  --line:rgba(255,255,255,.08);
  --line-soft:rgba(255,255,255,.06);
  --r-pill:999px;
  --r-card:18px;
  --r-lg:24px;
  --r-md:14px;
  --r-sm:12px;
  --shadow-1:0 1px 0 rgba(255,255,255,.04) inset, 0 8px 24px rgba(0,0,0,.45);
  --shadow-2:0 18px 40px rgba(0,0,0,.55);
  --ease:cubic-bezier(.2,.7,.3,1);
  --zh:'Noto Sans SC','Source Han Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --en:'Rajdhani','Chakra Petch',var(--zh);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--zh);
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--primary);}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:-.01em;}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
.num{font-family:var(--en);font-variant-numeric:tabular-nums;letter-spacing:.02em;}
.container-xl{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.container-wide{width:100%;max-width:1140px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;color:var(--primary);
  text-transform:uppercase;margin-bottom:14px;
}
.kicker::before{content:'';width:22px;height:1px;background:var(--primary);opacity:.7;}
.section-head{margin-bottom:44px;max-width:760px;}
.section-head h2{font-size:clamp(24px,3vw,32px);}
.section-head p{color:var(--muted);font-size:15px;margin-top:12px;line-height:1.8;}
.divider{height:1px;background:var(--line);border:0;margin:0;}

/* ============ 头部胶囊导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  padding:14px 24px 0;
  transition:padding .22s var(--ease);
}
.nav-shell{
  max-width:1200px;margin:0 auto;
  display:flex;align-items:center;gap:20px;
  height:68px;padding:0 12px 0 18px;
  background:rgba(18,18,26,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  transition:height .22s var(--ease),background .22s var(--ease),box-shadow .22s var(--ease);
}
.site-header.is-scrolled .nav-shell{
  height:60px;
  background:rgba(18,18,26,.88);
  box-shadow:var(--shadow-1);
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:50%;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--primary),#1a9d86);
  color:#08110F;font-size:14px;
  box-shadow:0 0 0 1px rgba(35,211,176,.35);
}
.brand-text{font-size:16px;font-weight:700;letter-spacing:.01em;white-space:nowrap;}
.brand:hover .brand-text{color:var(--primary);}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  display:inline-flex;align-items:center;
  height:38px;padding:0 14px;border-radius:var(--r-pill);
  font-size:14px;color:var(--muted);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-link:hover{background:rgba(255,255,255,.08);color:var(--primary);}
.nav-link.active{color:var(--primary);background:rgba(35,211,176,.1);}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;border:1px solid transparent;
  transition:all .2s var(--ease);white-space:nowrap;
}
.btn-glow{
  height:40px;padding:0 20px;font-size:14px;
  background:var(--primary);color:#07110F;font-weight:700;
  border-color:var(--primary);
}
.btn-glow:hover{background:#3ae6c3;color:#07110F;box-shadow:0 10px 26px rgba(35,211,176,.28);}
.btn-primary-solid{background:var(--primary);color:#07110F;font-weight:700;border-color:var(--primary);}
.btn-primary-solid:hover{background:#3ae6c3;color:#07110F;box-shadow:0 12px 30px rgba(35,211,176,.3);}
.btn-outline-soft{background:transparent;color:var(--text);border-color:rgba(255,255,255,.22);}
.btn-outline-soft:hover{border-color:var(--primary);color:var(--primary);background:rgba(35,211,176,.08);}
.btn-ghost{background:transparent;color:var(--muted);border-color:transparent;padding:0 12px;}
.btn-ghost:hover{color:var(--primary);}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:50%;
  background:rgba(255,255,255,.06);border:1px solid var(--line);
  color:var(--text);font-size:15px;
}
.nav-toggle:hover{color:var(--primary);border-color:rgba(35,211,176,.4);}

/* ============ 面包屑 ============ */
.crumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--dim);margin-bottom:22px;
}
.crumb a{color:var(--dim);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{opacity:.5;}
.crumb .now{color:var(--primary);}

/* ============ Hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center 35%;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(10,10,15,.95) 0%,rgba(10,10,15,.82) 48%,rgba(10,10,15,.55) 100%);
}
.page-hero::after{
  content:'';position:absolute;left:0;right:0;bottom:0;height:120px;
  background:linear-gradient(180deg,transparent,rgba(10,10,15,.96));
}
.hero-inner{position:relative;z-index:2;padding:132px 0 64px;max-width:720px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  height:32px;padding:0 14px;border-radius:var(--r-pill);
  font-size:12.5px;letter-spacing:.06em;
  color:var(--accent);
  background:rgba(255,122,61,.12);
  border:1px solid rgba(255,122,61,.4);
  margin-bottom:20px;
}
.page-hero h1{
  font-size:clamp(30px,4.4vw,48px);
  margin-bottom:16px;
}
.page-hero h1 span{color:var(--accent);}
.hero-lead{
  color:var(--muted);font-size:16.5px;line-height:1.8;
  max-width:600px;margin-bottom:0;
}
.hero-stats{
  position:relative;z-index:2;
  display:flex;flex-wrap:wrap;gap:14px;
  padding:0 0 46px;
}
.stat-pill{
  display:flex;align-items:baseline;gap:8px;
  padding:12px 20px;border-radius:var(--r-md);
  background:rgba(18,18,26,.7);
  border:1px solid var(--line);
}
.stat-pill b{font-family:var(--en);font-size:22px;font-weight:700;color:var(--accent);line-height:1;}
.stat-pill span{font-size:13px;color:var(--muted);}

/* ============ 布局：时间线 + 卡片网格 ============ */
.split{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:40px;align-items:start;}
.tl-rail{
  position:sticky;top:104px;
  background:var(--bg-2);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:26px 24px;
}
.tl-rail h3{font-size:16px;margin-bottom:6px;}
.tl-rail .rail-note{font-size:13px;color:var(--dim);margin-bottom:22px;}
.tl{list-style:none;margin:0;padding:0;position:relative;}
.tl::before{
  content:'';position:absolute;left:15px;top:8px;bottom:8px;width:1px;
  background:linear-gradient(180deg,rgba(255,122,61,.55),rgba(255,255,255,.08));
}
.tl li{position:relative;padding:0 0 24px 46px;}
.tl li:last-child{padding-bottom:0;}
.tl-num{
  position:absolute;left:0;top:2px;width:32px;height:32px;border-radius:50%;
  display:grid;place-items:center;
  font-family:var(--en);font-size:13px;font-weight:700;
  background:var(--bg-3);border:1px solid var(--line);color:var(--accent);
  transition:all .2s var(--ease);
}
.tl li:hover .tl-num{background:var(--accent);color:#180A02;border-color:var(--accent);}
.tl-title{font-size:15px;font-weight:700;margin-bottom:4px;}
.tl-desc{font-size:13.5px;color:var(--muted);line-height:1.7;}
.tl-meta{font-size:12px;color:var(--dim);margin-top:6px;font-family:var(--en);}

/* 非对称卡片网格 */
.ev-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:20px;}
.ev-card{
  position:relative;display:flex;flex-direction:column;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.ev-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(35,211,176,.3);}
.ev-card:hover .ev-title{color:var(--primary);}
.ev-thumb{position:relative;overflow:hidden;background:var(--bg-3);}
.ev-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease);}
.ev-card:hover .ev-thumb img{transform:scale(1.04);}
.ev-tag{
  position:absolute;top:14px;left:14px;
  height:26px;padding:0 12px;border-radius:var(--r-pill);
  display:inline-flex;align-items:center;
  font-size:12px;font-weight:500;
  background:rgba(10,10,15,.8);border:1px solid rgba(255,122,61,.45);color:var(--accent);
  backdrop-filter:blur(6px);
}
.ev-tag.tag-live{background:rgba(255,122,61,.9);color:#180A02;border-color:transparent;font-weight:700;}
.ev-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.ev-cat{
  align-self:flex-start;
  font-size:12px;color:var(--muted);
  border:1px solid var(--line);border-radius:var(--r-pill);
  padding:2px 10px;margin-bottom:12px;
}
.ev-title{font-size:18px;margin-bottom:10px;transition:color .2s var(--ease);}
.ev-desc{font-size:14px;color:var(--muted);line-height:1.75;margin:0 0 18px;}
.ev-meta{
  margin-top:auto;display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:12px;color:var(--dim);
}
.ev-meta i{color:var(--dim);}
.ev-meta .dot{opacity:.5;}
.ev-main{grid-column:span 6;flex-direction:row;}
.ev-main .ev-thumb{width:52%;flex-shrink:0;min-height:300px;}
.ev-main .ev-body{padding:30px 32px;}
.ev-main .ev-title{font-size:24px;}
.ev-main .ev-desc{font-size:15px;}
.ev-half{grid-column:span 3;}
.ev-third{grid-column:span 3;}
.ev-half .ev-thumb{height:170px;}
.ev-third .ev-thumb{height:150px;}

/* 要点清单 + 数据卡 */
.flow-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:40px;align-items:start;}
.check-list{list-style:none;margin:0;padding:0;}
.check-list li{
  position:relative;padding:18px 0 18px 42px;
  border-bottom:1px solid var(--line-soft);
}
.check-list li:last-child{border-bottom:0;}
.check-list li::before{
  content:'';position:absolute;left:12px;top:28px;
  width:8px;height:8px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 0 4px rgba(255,122,61,.14);
}
.check-list b{display:block;font-size:16px;margin-bottom:6px;}
.check-list span{font-size:14px;color:var(--muted);line-height:1.75;}
.data-card{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px 26px;
}
.data-card h3{font-size:17px;margin-bottom:18px;}
.data-row{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:14px 0;border-bottom:1px dashed var(--line-soft);
}
.data-row:last-of-type{border-bottom:0;}
.data-row .k{font-size:14px;color:var(--muted);}
.data-row .v{font-family:var(--en);font-size:20px;font-weight:700;color:var(--text);}
.data-row .v.acc{color:var(--accent);}
.data-note{font-size:12.5px;color:var(--dim);margin-top:18px;line-height:1.7;}

/* 相关分类胶囊 */
.chip-group{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px;}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  height:40px;padding:0 18px;border-radius:var(--r-pill);
  font-size:14px;color:var(--muted);
  border:1px solid var(--line);background:var(--bg-2);
  transition:all .2s var(--ease);
}
.chip:hover{color:var(--primary);border-color:var(--primary);background:rgba(35,211,176,.07);}
.chip.on{color:#07110F;background:var(--primary);border-color:var(--primary);font-weight:700;}

/* ============ FAQ ============ */
.accordion-item{
  background:var(--bg-2);border:0;border-radius:var(--r-md)!important;
  margin-bottom:12px;overflow:hidden;
}
.accordion-button{
  background:var(--bg-2);color:var(--text);
  font-size:17px;font-weight:500;
  padding:20px 24px;
  border-radius:var(--r-md)!important;
  box-shadow:none!important;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.accordion-button:hover{background:var(--bg-3);color:var(--primary);}
.accordion-button:not(.collapsed){
  background:var(--bg-3);color:var(--text);
  border-left:3px solid var(--accent);
}
.accordion-button::after{
  display:none;
}
.accordion-button .faq-icon{
  margin-left:auto;position:relative;width:18px;height:18px;flex-shrink:0;
}
.accordion-button .faq-icon::before,
.accordion-button .faq-icon::after{
  content:'';position:absolute;background:var(--accent);border-radius:2px;
  transition:transform .22s var(--ease),opacity .22s var(--ease);
}
.accordion-button .faq-icon::before{left:0;top:8px;width:18px;height:2px;}
.accordion-button .faq-icon::after{left:8px;top:0;width:2px;height:18px;}
.accordion-button:not(.collapsed) .faq-icon::after{transform:rotate(90deg);opacity:0;}
.accordion-body{
  padding:4px 24px 24px;color:var(--muted);font-size:14.5px;line-height:1.85;
}

/* ============ 收藏 / 分享条带 ============ */
.share-bar{
  background:var(--bg-2);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:26px 28px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.share-bar .copy b{display:block;font-size:17px;margin-bottom:4px;}
.share-bar .copy span{font-size:13.5px;color:var(--muted);}
.share-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.btn-save.is-saved{background:var(--accent);border-color:var(--accent);color:#180A02;}
.social-round{
  width:42px;height:42px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--bg-3);border:1px solid var(--line);color:var(--muted);
  transition:all .2s var(--ease);
}
.social-round:hover{color:var(--primary);border-color:var(--primary);background:rgba(35,211,176,.1);}

/* ============ 页脚 ============ */
.site-footer{background:#08080C;border-top:1px solid var(--line);padding:72px 0 0;margin-top:8px;}
.footer-grid{
  display:grid;grid-template-columns:2.2fr 1fr 1fr 1.5fr;gap:40px;
  padding-bottom:52px;
}
.footer-about p{font-size:14px;color:var(--muted);line-height:1.85;margin:18px 0 16px;max-width:360px;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.footer-tags span{
  font-size:12px;color:var(--dim);border:1px solid var(--line);
  border-radius:var(--r-pill);padding:3px 12px;
}
.site-footer h4{font-size:15px;margin-bottom:18px;color:var(--text);}
.footer-links{list-style:none;margin:0;padding:0;}
.footer-links li{margin-bottom:12px;}
.footer-links a{font-size:14px;color:var(--muted);}
.footer-links a:hover{color:var(--primary);}
.footer-contact p{font-size:13.5px;color:var(--muted);line-height:1.8;margin-bottom:12px;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);padding:22px 0 26px;
  font-size:13px;color:var(--dim);
}
.footer-bottom a{color:var(--dim);}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .split{grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:28px;}
  .ev-main .ev-thumb{width:48%;}
}
@media (max-width:991px){
  .section{padding:72px 0;}
  .container-xl,.container-wide{padding:0 20px;}
  .split,.flow-grid{grid-template-columns:1fr;gap:28px;}
  .tl-rail{position:static;}
  .ev-grid{grid-template-columns:repeat(4,1fr);}
  .ev-main{grid-column:span 4;flex-direction:column;}
  .ev-main .ev-thumb{width:100%;min-height:0;height:230px;}
  .ev-half,.ev-third{grid-column:span 2;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-about{grid-column:1/-1;}
  .nav-toggle{display:grid;place-items:center;}
  .nav-links{
    position:fixed;top:78px;left:16px;right:16px;
    flex-direction:column;align-items:stretch;gap:0;margin:0;
    background:rgba(12,12,18,.97);
    border:1px solid var(--line);border-radius:20px;
    padding:14px;backdrop-filter:blur(18px);
    box-shadow:var(--shadow-2);
    transform:translateY(-12px);opacity:0;pointer-events:none;
    transition:opacity .22s var(--ease),transform .22s var(--ease);
    max-height:calc(100vh - 110px);overflow-y:auto;
  }
  .nav-links.is-open{opacity:1;transform:translateY(0);pointer-events:auto;}
  .nav-link{height:48px;border-radius:12px;font-size:15px;justify-content:flex-start;}
  .nav-actions .btn-glow{display:none;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .site-header{padding:10px 14px 0;}
  .nav-shell{height:60px;padding:0 10px 0 14px;gap:12px;}
  .brand-text{font-size:14.5px;}
  .hero-inner{padding:112px 0 44px;}
  .page-hero h1{font-size:30px;}
  .hero-lead{font-size:15px;}
  .hero-stats{gap:10px;padding-bottom:36px;}
  .stat-pill{padding:10px 16px;}
  .stat-pill b{font-size:19px;}
  .ev-grid{grid-template-columns:1fr;}
  .ev-main,.ev-half,.ev-third{grid-column:span 1;}
  .ev-main .ev-thumb{height:200px;}
  .ev-half .ev-thumb,.ev-third .ev-thumb{height:180px;}
  .share-bar{flex-direction:column;align-items:stretch;padding:22px 20px;}
  .share-actions{width:100%;}
  .share-actions .btn{flex:1 1 100%;}
  .social-round{flex:0 0 42px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:30px;}
}
@media (max-width:520px){
  .container-xl,.container-wide{padding:0 18px;}
  .section{padding:48px 0;}
  .section-tight{padding:44px 0;}
  .ev-body{padding:18px 18px 20px;}
  .tl-rail{padding:20px 18px;border-radius:18px;}
  .data-card{padding:22px 18px;}
  .accordion-button{font-size:15.5px;padding:16px 18px;}
  .accordion-body{padding:2px 18px 20px;}
}

/* roulang page: category3 */
:root{
  --bg:#0A0A0F;
  --surface:#12121A;
  --surface-3:#1A1A24;
  --light:#F4F5F7;
  --primary:#23D3B0;
  --primary-soft:rgba(35,211,176,.12);
  --accent:#FF7A3D;
  --violet:#9A8CFF;
  --page-accent:#9A8CFF;
  --page-accent-soft:rgba(154,140,255,.14);
  --text:#F2F4F7;
  --muted:#A7ADBB;
  --dim:#6C7280;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --r-pill:999px;
  --r-card:18px;
  --r-lg:24px;
  --shadow-1:0 1px 0 rgba(255,255,255,.04),0 8px 24px rgba(0,0,0,.45);
  --shadow-2:0 18px 40px rgba(0,0,0,.55);
  --ease:cubic-bezier(.2,.7,.3,1);

  --bs-body-bg:transparent;
  --bs-body-color:#F2F4F7;
  --bs-primary:#23D3B0;
  --bs-link-color:#23D3B0;
  --bs-link-hover-color:#5CE6CB;
  --bs-border-color:rgba(255,255,255,.08);
  --bs-font-sans-serif:'Noto Sans SC','Source Han Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --bs-accordion-bg:transparent;
  --bs-accordion-color:#F2F4F7;
  --bs-accordion-border-color:transparent;
  --bs-accordion-btn-color:#F2F4F7;
  --bs-accordion-active-color:#23D3B0;
  --bs-accordion-active-bg:rgba(35,211,176,.06);
  --bs-accordion-btn-focus-box-shadow:none;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:110px;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:'Noto Sans SC','Source Han Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:17px;
  line-height:1.85;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color 180ms var(--ease);}
a:hover{color:var(--primary);}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.01em;font-weight:700;}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
.num,.en{font-family:'Rajdhani','Chakra Petch','Noto Sans SC',sans-serif;font-variant-numeric:tabular-nums;letter-spacing:.02em;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

.container-xl{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  padding:14px 18px;
  transition:padding 220ms var(--ease);
}
.site-header.scrolled{padding:8px 18px;}
.nav-shell{
  max-width:1200px;margin:0 auto;
  display:flex;align-items:center;gap:16px;
  padding:10px 12px 10px 20px;
  border-radius:var(--r-pill);
  background:rgba(18,18,26,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:background 220ms var(--ease),padding 220ms var(--ease);
}
.site-header.scrolled .nav-shell{background:rgba(18,18,26,.88);padding:6px 12px 6px 20px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--violet));
  color:#06110E;font-size:15px;
}
.brand-text{font-size:16px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;color:var(--text);}
.brand:hover .brand-text{color:var(--primary);}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;
  padding:9px 14px;border-radius:var(--r-pill);
  font-size:15px;color:var(--muted);white-space:nowrap;
  transition:background 180ms var(--ease),color 180ms var(--ease);
}
.nav-link:hover{background:rgba(255,255,255,.08);color:var(--primary);}
.nav-link.active{color:var(--primary);background:var(--primary-soft);}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 20px;border-radius:var(--r-pill);
  background:var(--primary);color:#06110E;
  font-size:15px;font-weight:700;
  transition:transform 200ms var(--ease),box-shadow 200ms var(--ease),background 200ms var(--ease);
}
.btn-glow:hover{background:#3FE3C3;color:#06110E;transform:translateY(-2px);box-shadow:0 12px 26px rgba(35,211,176,.28);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-pill);
  border:1px solid var(--line);color:var(--text);font-size:17px;
  place-items:center;background:rgba(255,255,255,.04);
}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);font-weight:700;font-size:15px;
  padding:12px 26px;border:1px solid transparent;
  transition:transform 200ms var(--ease),box-shadow 200ms var(--ease),background 200ms var(--ease),border-color 200ms var(--ease),color 200ms var(--ease);
}
.btn-primary-pill{background:var(--primary);color:#06110E;box-shadow:0 10px 24px rgba(35,211,176,.2);}
.btn-primary-pill:hover{background:#3FE3C3;color:#06110E;transform:translateY(-3px);box-shadow:0 18px 40px rgba(0,0,0,.55);}
.btn-outline-pill{border-color:var(--line-strong);color:var(--text);background:rgba(255,255,255,.03);}
.btn-outline-pill:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-3px);}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  padding:170px 0 74px;
  background-image:linear-gradient(90deg,rgba(10,10,15,.95) 0%,rgba(10,10,15,.78) 46%,rgba(10,10,15,.42) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center 30%;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::before{
  content:'';position:absolute;inset:0;pointer-events:none;opacity:.25;
  background-image:
    radial-gradient(1.5px 1.5px at 14% 26%,rgba(255,255,255,.85) 50%,transparent 51%),
    radial-gradient(1.5px 1.5px at 68% 18%,rgba(154,140,255,.9) 50%,transparent 51%),
    radial-gradient(1px 1px at 42% 62%,rgba(255,255,255,.7) 50%,transparent 51%),
    radial-gradient(1px 1px at 86% 74%,rgba(35,211,176,.85) 50%,transparent 51%);
  background-size:340px 340px,420px 420px,300px 300px,520px 520px;
}
.page-hero-inner{position:relative;z-index:2;}
.breadcrumb-nav{
  display:flex;align-items:center;gap:10px;
  font-size:13px;color:var(--dim);margin-bottom:26px;
}
.breadcrumb-nav a{color:var(--dim);}
.breadcrumb-nav a:hover{color:var(--primary);}
.breadcrumb-nav .sep{color:rgba(255,255,255,.2);}
.breadcrumb-nav .current{color:var(--page-accent);}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:var(--r-pill);
  font-size:13px;font-weight:500;
  color:var(--page-accent);
  background:var(--page-accent-soft);
  border:1px solid rgba(154,140,255,.32);
  margin-bottom:22px;
}
.page-hero h1{
  font-size:clamp(30px,4.4vw,50px);
  max-width:16em;
  margin-bottom:20px;
}
.hero-lead{
  max-width:34em;color:var(--muted);font-size:17px;margin-bottom:32px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 统计条 ============ */
.stat-strip{
  background:var(--surface);
  border-bottom:1px solid var(--line);
  position:relative;z-index:3;
}
.stat-strip-inner{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:0;
}
.stat-item{
  padding:28px 26px;
  border-right:1px solid var(--line);
}
.stat-item:last-child{border-right:0;}
.stat-value{
  display:block;font-size:30px;font-weight:700;
  color:var(--page-accent);line-height:1.2;margin-bottom:6px;
}
.stat-label{font-size:14px;color:var(--dim);}

/* ============ 通用板块 ============ */
.section{padding:96px 0;}
.section-tight{padding:60px 0;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:28px;
  margin-bottom:44px;flex-wrap:wrap;
}
.section-head h2{font-size:clamp(24px,2.8vw,32px);}
.eyebrow{
  display:inline-block;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--page-accent);margin-bottom:12px;font-weight:500;
}
.section-note{max-width:32em;color:var(--dim);font-size:15px;margin:0;}

/* ============ 流程条 ============ */
.step-flow{
  display:grid;grid-template-columns:repeat(4,1fr);gap:22px;
}
.step-item{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 24px 28px;
  box-shadow:var(--shadow-1);
  transition:transform 200ms var(--ease),border-color 200ms var(--ease),box-shadow 200ms var(--ease);
}
.step-item:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-2);}
.step-item::after{
  content:'';position:absolute;top:52px;right:-22px;width:22px;height:1px;
  background:linear-gradient(90deg,rgba(154,140,255,.5),rgba(154,140,255,0));
}
.step-item:last-child::after{display:none;}
.step-index{
  display:block;font-size:30px;font-weight:700;
  color:var(--page-accent);opacity:.95;line-height:1;margin-bottom:16px;
}
.step-item h3{font-size:18px;margin-bottom:10px;}
.step-item p{font-size:15px;color:var(--muted);line-height:1.8;margin:0;}

/* ============ 要点清单 ============ */
.points-grid{
  display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:start;
}
.check-list{display:grid;gap:2px;margin-top:28px;}
.check-list li{
  display:flex;gap:16px;align-items:flex-start;
  padding:18px 4px;
  border-bottom:1px solid var(--line);
  transition:background 200ms var(--ease),padding 200ms var(--ease);
}
.check-list li:first-child{border-top:1px solid var(--line);}
.check-list li:hover{background:rgba(255,255,255,.04);padding-left:14px;}
.check-list i{
  flex-shrink:0;width:26px;height:26px;border-radius:8px;
  display:grid;place-items:center;margin-top:4px;
  background:var(--page-accent-soft);color:var(--page-accent);font-size:12px;
}
.check-list strong{display:block;font-size:16px;font-weight:700;margin-bottom:4px;}
.check-list span{display:block;font-size:14.5px;color:var(--muted);line-height:1.75;}
.points-figure{
  margin:0;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--surface);
  box-shadow:var(--shadow-1);
}
.points-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.points-figure figcaption{
  padding:16px 22px;font-size:13.5px;color:var(--dim);
  border-top:1px solid var(--line);
}

/* ============ 数据说明卡 ============ */
.data-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:22px;
}
.data-card{
  background:linear-gradient(180deg,var(--surface-3),var(--surface));
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px 26px 26px;
  box-shadow:var(--shadow-1);
  transition:transform 200ms var(--ease),box-shadow 200ms var(--ease),border-color 200ms var(--ease);
}
.data-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--line-strong);}
.data-card .data-num{
  display:block;font-size:38px;font-weight:700;line-height:1.1;
  color:var(--text);margin-bottom:8px;
}
.data-card .data-num em{font-style:normal;font-size:16px;color:var(--dim);margin-left:6px;font-family:inherit;}
.data-card h3{font-size:17px;margin-bottom:10px;}
.data-card p{font-size:14.5px;color:var(--muted);line-height:1.8;margin:0;}
.bar-track{
  height:6px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.08);overflow:hidden;margin-top:20px;
}
.bar-fill{height:100%;border-radius:var(--r-pill);background:var(--page-accent);}
.share-board{
  margin-top:22px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:30px 30px 26px;
  box-shadow:var(--shadow-1);
}
.share-board h3{font-size:18px;margin-bottom:6px;}
.share-board .board-note{font-size:14px;color:var(--dim);margin-bottom:24px;}
.share-rows{display:grid;gap:18px;}
.share-row{display:grid;grid-template-columns:120px 1fr 62px;align-items:center;gap:18px;}
.share-row .share-name{font-size:14.5px;color:var(--muted);}
.share-row .bar-track{margin-top:0;}
.share-row .share-pct{font-size:14px;color:var(--page-accent);text-align:right;}

/* ============ FAQ ============ */
.faq-wrap{max-width:920px;margin:0 auto;}
.accordion-item{
  background:var(--surface);
  border:1px solid var(--line) !important;
  border-radius:14px !important;
  margin-bottom:14px;
  overflow:hidden;
  transition:background 200ms var(--ease),border-color 200ms var(--ease);
}
.accordion-item:hover{border-color:var(--line-strong) !important;}
.accordion-button{
  background:transparent;color:var(--text);
  font-size:17px;font-weight:500;
  padding:22px 60px 22px 26px;
  border-radius:14px !important;
  box-shadow:none !important;
  border-left:3px solid transparent;
  transition:background 200ms var(--ease),color 200ms var(--ease);
}
.accordion-button:not(.collapsed){
  background:rgba(154,140,255,.07);
  color:var(--page-accent);
  border-left-color:var(--page-accent);
}
.accordion-button::after{
  content:'+';
  background-image:none !important;
  width:auto;height:auto;
  position:absolute;right:24px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;line-height:1;color:var(--dim);
  transition:color 200ms var(--ease),transform 200ms var(--ease);
}
.accordion-button:not(.collapsed)::after{content:'−';color:var(--page-accent);transform:translateY(-50%) rotate(0deg);}
.accordion-body{
  padding:0 26px 24px;
  font-size:15.5px;color:var(--muted);line-height:1.9;
  border-left:3px solid var(--page-accent);
}

/* ============ 分类胶囊 ============ */
.chip-row{display:flex;flex-wrap:wrap;gap:12px;}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 20px;border-radius:var(--r-pill);
  border:1px solid var(--line-strong);
  font-size:14.5px;color:var(--muted);
  transition:border-color 180ms var(--ease),color 180ms var(--ease),background 180ms var(--ease),transform 180ms var(--ease);
}
.chip:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);}
.chip.is-current{background:var(--page-accent-soft);border-color:rgba(154,140,255,.4);color:var(--page-accent);}
.mini-title{font-size:20px;margin-bottom:22px;}

/* ============ CTA 条带 ============ */
.cta-band{
  background:linear-gradient(120deg,rgba(154,140,255,.10),rgba(35,211,176,.07) 55%,rgba(10,10,15,0) 100%),var(--surface);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:64px 0;
}
.cta-band-inner{
  display:flex;align-items:center;justify-content:space-between;gap:34px;flex-wrap:wrap;
}
.cta-copy h2{font-size:clamp(21px,2.4vw,27px);margin-bottom:10px;}
.cta-copy p{color:var(--muted);font-size:15px;margin:0;max-width:34em;}
.cta-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.btn.is-saved{background:var(--accent);color:#160A04;box-shadow:0 10px 24px rgba(255,122,61,.22);}
.social-round{display:flex;gap:10px;margin-left:6px;}
.round-btn{
  width:42px;height:42px;border-radius:var(--r-pill);
  display:grid;place-items:center;
  border:1px solid var(--line-strong);color:var(--muted);font-size:15px;
  transition:border-color 180ms var(--ease),color 180ms var(--ease),background 180ms var(--ease);
}
.round-btn:hover{border-color:var(--primary);color:var(--primary);background:rgba(35,211,176,.1);}
.toast-tip{
  position:fixed;left:50%;bottom:36px;transform:translate(-50%,20px);
  background:var(--surface-3);border:1px solid var(--line-strong);
  color:var(--text);font-size:14px;padding:12px 22px;border-radius:var(--r-pill);
  box-shadow:var(--shadow-2);opacity:0;pointer-events:none;
  transition:opacity 220ms var(--ease),transform 220ms var(--ease);z-index:1200;
}
.toast-tip.show{opacity:1;transform:translate(-50%,0);}

/* ============ 页脚 ============ */
.site-footer{background:#08080C;padding:76px 0 0;border-top:1px solid var(--line);}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:44px;
  padding-bottom:52px;
}
.footer-about p{color:var(--dim);font-size:14.5px;line-height:1.85;margin:20px 0 0;max-width:30em;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px;}
.footer-tags span{
  font-size:12.5px;color:var(--dim);
  border:1px solid var(--line);border-radius:var(--r-pill);
  padding:4px 12px;
}
.site-footer h4{font-size:15px;margin-bottom:20px;color:var(--text);}
.footer-links li{margin-bottom:12px;}
.footer-links a{font-size:14.5px;color:var(--dim);}
.footer-links a:hover{color:var(--primary);}
.footer-contact p{font-size:14px;color:var(--dim);line-height:1.85;margin-bottom:12px;}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:24px 0 30px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:var(--dim);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .points-grid{gap:40px;}
  .step-flow{grid-template-columns:repeat(2,1fr);}
  .step-item::after{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:991.98px){
  .nav-link{padding:8px 11px;font-size:14px;}
  .nav-shell{padding:8px 10px 8px 16px;}
  .page-hero{padding:140px 0 60px;}
  .section{padding:72px 0;}
  .data-grid{grid-template-columns:1fr;}
  .points-grid{grid-template-columns:1fr;}
  .points-figure{order:-1;}
}
@media (max-width:991.98px){
  .nav-toggle{display:grid;}
  .nav-actions .btn-glow{display:none;}
  .nav-links{
    position:fixed;inset:0;z-index:900;
    display:none;flex-direction:column;align-items:stretch;
    background:#0A0A0F;
    padding:104px 20px 130px;gap:0;overflow-y:auto;margin-left:0;
  }
  body.nav-open .nav-links{display:flex;}
  .nav-link{
    height:48px;display:flex;align-items:center;justify-content:flex-start;
    padding:0 6px;border-radius:0;border-bottom:1px solid var(--line);
    font-size:16px;background:transparent;
  }
  .nav-link.active{background:transparent;color:var(--primary);}
  body.nav-open .nav-actions .btn-glow{
    display:inline-flex;position:fixed;left:20px;right:20px;bottom:28px;z-index:950;
  }
  body.nav-open{overflow:hidden;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .container-xl{padding:0 18px;}
  .brand-text{font-size:14.5px;}
  .page-hero{padding:126px 0 52px;background-position:center 24%;}
  .hero-lead{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
  .stat-strip-inner{grid-template-columns:1fr;}
  .stat-item{border-right:0;border-bottom:1px solid var(--line);padding:22px 4px;}
  .stat-item:last-child{border-bottom:0;}
  .section{padding:60px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:32px;}
  .step-flow{grid-template-columns:1fr;}
  .share-row{grid-template-columns:96px 1fr 54px;gap:12px;}
  .cta-band-inner{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .social-round{margin-left:0;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:575.98px){
  .page-hero::before{display:none;}
  .section{padding:48px 0;}
  .points-figure img{aspect-ratio:4/3;}
  .accordion-button{font-size:16px;padding:18px 52px 18px 20px;}
  .accordion-body{padding:0 20px 20px;}
  .data-card{padding:22px 20px;}
}

/* roulang page: category4 */
:root{
  --bg:#0A0A0F;
  --surface:#12121A;
  --surface-2:#1A1A24;
  --light:#F4F5F7;
  --primary:#23D3B0;
  --accent:#FF7A3D;
  --violet:#9A8CFF;
  --moon:#D8DEE9;
  --text:#F2F4F7;
  --muted:#A7ADBB;
  --dim:#6C7280;
  --line:rgba(255,255,255,.08);
  --line-soft:rgba(255,255,255,.06);
  --line-hover:rgba(35,211,176,.3);
  --r-pill:999px;
  --r-card:18px;
  --r-lg:24px;
  --r-sm:12px;
  --sh-1:0 1px 0 rgba(255,255,255,.04),0 8px 24px rgba(0,0,0,.45);
  --sh-2:0 18px 40px rgba(0,0,0,.55);
  --ease:cubic-bezier(.2,.7,.3,1);
  --bs-primary:#23D3B0;
  --bs-body-bg:#0A0A0F;
  --bs-body-color:#F2F4F7;
  --bs-border-color:rgba(255,255,255,.08);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-top:96px;
  background:var(--bg);
  color:var(--text);
  font-family:'Noto Sans SC','Source Han Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  font-size:17px;
  line-height:1.85;
  font-weight:400;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:radial-gradient(circle at 12% 18%,rgba(255,255,255,.16) 0 1px,transparent 1px),
                   radial-gradient(circle at 78% 42%,rgba(255,255,255,.12) 0 1px,transparent 1px),
                   radial-gradient(circle at 42% 76%,rgba(255,255,255,.1) 0 1px,transparent 1px);
  background-size:220px 220px,320px 320px,420px 420px;
  opacity:.28;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease)}
a:hover{color:var(--primary)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:-.01em}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.num,.en{font-family:'Rajdhani','Chakra Petch',sans-serif;font-variant-numeric:tabular-nums;letter-spacing:.02em}
.container-xl{max-width:1200px;padding-left:24px;padding-right:24px}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{
  position:fixed;top:16px;left:0;right:0;z-index:1030;
  transition:top .2s var(--ease);
}
.site-header.scrolled{top:8px}
.nav-shell{
  width:calc(100% - 32px);max-width:1200px;margin:0 auto;height:68px;
  display:flex;align-items:center;gap:16px;padding:0 10px 0 20px;
  background:rgba(18,18,26,.72);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid var(--line);border-radius:var(--r-pill);
  box-shadow:var(--sh-1);
  transition:height .2s var(--ease),background-color .2s var(--ease);
}
.site-header.scrolled .nav-shell{height:60px;background:rgba(18,18,26,.88)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(35,211,176,.22),rgba(154,140,255,.18));
  border:1px solid var(--line);color:var(--primary);font-size:14px;
}
.brand-text{font-size:16px;font-weight:700;letter-spacing:.01em;white-space:nowrap;color:var(--text)}
.brand:hover .brand-text{color:var(--primary)}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  display:block;padding:9px 14px;border-radius:var(--r-pill);
  font-size:15px;color:var(--muted);white-space:nowrap;
}
.nav-link:hover{background:rgba(255,255,255,.08);color:var(--primary)}
.nav-link.active{color:var(--primary);background:rgba(35,211,176,.1)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);border:1px solid transparent;cursor:pointer;
  font-size:15px;font-weight:500;padding:11px 22px;
  transition:transform .19s var(--ease),box-shadow .19s var(--ease),background-color .19s var(--ease),color .19s var(--ease),border-color .19s var(--ease);
}
.btn-glow{background:var(--primary);color:#06120F;font-weight:700}
.btn-glow:hover{background:#31e3c1;color:#06120F;transform:translateY(-2px);box-shadow:0 10px 26px rgba(35,211,176,.28)}
.btn-ghost{border-color:rgba(255,255,255,.16);color:var(--text);background:transparent}
.btn-ghost:hover{border-color:var(--line-hover);color:var(--primary);transform:translateY(-2px)}
.btn-moon{border-color:rgba(216,222,233,.28);color:var(--moon);background:transparent}
.btn-moon:hover{border-color:var(--moon);color:var(--moon);background:rgba(216,222,233,.08)}
.btn-sm{padding:9px 18px;font-size:14px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.06);border:1px solid var(--line);color:var(--text);
}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--dim);margin-bottom:22px}
.crumb a{color:var(--dim)}
.crumb a:hover{color:var(--primary)}
.crumb .sep{opacity:.5}
.crumb .now{color:var(--primary)}

/* ---------- 分类页 Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center 30%;
  border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(10,10,15,.96) 0%,rgba(10,10,15,.86) 42%,rgba(10,10,15,.5) 100%);
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(120% 90% at 88% 12%,rgba(216,222,233,.14),transparent 55%),
             radial-gradient(80% 80% at 8% 92%,rgba(35,211,176,.1),transparent 60%);
}
.hero-inner{position:relative;z-index:2;padding:64px 0 60px;min-height:392px;display:flex;flex-direction:column;justify-content:center}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;align-self:flex-start;
  padding:6px 16px;border-radius:var(--r-pill);font-size:13px;letter-spacing:.04em;
  color:var(--moon);background:rgba(216,222,233,.1);border:1px solid rgba(216,222,233,.28);
  margin-bottom:20px;
}
.page-hero h1{font-size:46px;max-width:760px;margin-bottom:16px}
.page-hero h1 .hl{color:var(--moon)}
.hero-lead{font-size:17px;color:var(--muted);max-width:620px;margin-bottom:28px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px}
.hero-stats{display:flex;flex-wrap:wrap;gap:36px;margin-top:36px;padding-top:26px;border-top:1px solid var(--line-soft);max-width:720px}
.stat-item .stat-num{font-size:30px;font-weight:600;color:var(--moon);line-height:1}
.stat-item .stat-label{font-size:13px;color:var(--dim);margin-top:6px}

/* ---------- 板块基础 ---------- */
.section{padding:92px 0;position:relative;z-index:1}
.section.tint{background:linear-gradient(180deg,rgba(18,18,26,0) 0%,rgba(18,18,26,.72) 18%,rgba(18,18,26,.72) 82%,rgba(18,18,26,0) 100%)}
.section-head{max-width:720px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.14em;
  color:var(--moon);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--moon);opacity:.7}
.section-title{font-size:32px;margin-bottom:14px}
.section-desc{color:var(--muted);font-size:16px}
.section-head.split{max-width:none;display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px}
.section-head.split .text-holder{max-width:660px}
.link-more{color:var(--primary);font-size:15px;border-bottom:1px solid transparent;padding-bottom:2px}
.link-more:hover{border-color:var(--primary)}

/* ---------- 对照表格 ---------- */
.table-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;
}
.table-panel-head{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding:22px 26px;border-bottom:1px solid var(--line-soft);
}
.table-panel-head h3{font-size:19px}
.table-panel-head .hint{font-size:13px;color:var(--dim)}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.compare-table{width:100%;min-width:760px;border-collapse:collapse}
.compare-table th,.compare-table td{padding:14px;text-align:left;font-size:15px;vertical-align:top}
.compare-table thead th{
  background:rgba(35,211,176,.08);color:var(--text);font-weight:700;font-size:14px;
  letter-spacing:.02em;border-bottom:1px solid rgba(35,211,176,.22);white-space:nowrap;
}
.compare-table tbody tr:nth-child(odd){background:rgba(255,255,255,.025)}
.compare-table tbody tr:hover{background:rgba(216,222,233,.06)}
.compare-table tbody td:first-child{color:var(--moon);font-weight:500;white-space:nowrap}
.compare-table tbody td{color:var(--muted);border-bottom:1px solid var(--line-soft)}
.compare-table tbody tr:last-child td{border-bottom:0}
.tag-inline{
  display:inline-block;padding:3px 12px;border-radius:var(--r-pill);font-size:12px;
  border:1px solid rgba(216,222,233,.28);color:var(--moon);margin-right:6px;margin-bottom:4px;
}

/* ---------- 双列清单 ---------- */
.dual-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.list-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-1);transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.list-card:hover{transform:translateY(-4px);border-color:var(--line-hover);box-shadow:var(--sh-2)}
.list-card .lc-head{display:flex;align-items:center;gap:12px;margin-bottom:20px}
.list-card .lc-index{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  font-size:16px;font-weight:600;color:var(--moon);
  background:rgba(216,222,233,.1);border:1px solid rgba(216,222,233,.22);
}
.list-card h3{font-size:20px}
.check-list li{
  position:relative;padding:11px 0 11px 26px;font-size:15.5px;color:var(--muted);
  border-bottom:1px dashed var(--line-soft);
}
.check-list li:last-child{border-bottom:0}
.check-list li::before{
  content:"";position:absolute;left:2px;top:21px;width:8px;height:8px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 0 4px rgba(35,211,176,.12);
}
.check-list li strong{color:var(--text);font-weight:500;margin-right:6px}

/* ---------- 阶段流程 ---------- */
.stage-flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.stage-item{
  position:relative;background:var(--surface-2);border:1px solid var(--line);
  border-radius:var(--r-card);padding:26px 22px;transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.stage-item:hover{transform:translateY(-4px);border-color:rgba(216,222,233,.32)}
.stage-item .stage-num{
  font-size:34px;font-weight:600;color:rgba(216,222,233,.5);line-height:1;margin-bottom:14px;
}
.stage-item h3{font-size:18px;margin-bottom:10px}
.stage-item p{font-size:14.5px;color:var(--muted);margin:0}
.stage-item::after{
  content:"";position:absolute;right:-11px;top:50%;width:16px;height:1px;background:var(--line);
}
.stage-item:last-child::after{display:none}

/* ---------- 图文洞察 ---------- */
.insight{
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:34px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px;box-shadow:var(--sh-1);
}
.insight-figure{border-radius:var(--r-card);overflow:hidden;position:relative}
.insight-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-card);transition:transform .22s var(--ease)}
.insight:hover .insight-figure img{transform:scale(1.03)}
.insight-body h3{font-size:24px;margin-bottom:14px}
.insight-body p{color:var(--muted);font-size:15.5px}
.insight-points{display:grid;gap:12px;margin-top:20px}
.insight-points li{
  display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--muted);
  padding:12px 14px;border-radius:var(--r-sm);background:rgba(255,255,255,.03);border:1px solid var(--line-soft);
}
.insight-points i{color:var(--moon);font-size:13px;margin-top:6px}

/* ---------- 误区卡 ---------- */
.pit-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.pit-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.pit-card:hover{transform:translateY(-4px);border-color:rgba(255,122,61,.32)}
.pit-card .pit-tag{
  display:inline-block;font-size:12px;color:var(--accent);border:1px solid rgba(255,122,61,.35);
  border-radius:var(--r-pill);padding:3px 12px;margin-bottom:16px;
}
.pit-card h3{font-size:18px;margin-bottom:10px}
.pit-card p{font-size:14.5px;color:var(--muted);margin:0}
.pit-card .fix{margin-top:14px;padding-top:14px;border-top:1px dashed var(--line-soft);font-size:14.5px;color:var(--moon)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto}
.faq-accordion .accordion-item{
  background:var(--surface);border:0;border-radius:14px;margin-bottom:12px;overflow:hidden;
  box-shadow:var(--sh-1);
}
.faq-accordion .accordion-button{
  position:relative;width:100%;background:var(--surface);color:var(--text);
  font-size:17px;font-weight:500;line-height:1.6;padding:20px 60px 20px 22px;
  box-shadow:none;border-radius:14px;
}
.faq-accordion .accordion-button::after{display:none}
.faq-accordion .accordion-button::before{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-family:'Rajdhani',sans-serif;font-size:24px;font-weight:500;color:var(--moon);line-height:1;
}
.faq-accordion .accordion-button:not(.collapsed){
  background:rgba(255,255,255,.04);color:var(--text);
  box-shadow:inset 3px 0 0 var(--primary);
}
.faq-accordion .accordion-button:not(.collapsed)::before{content:"−";color:var(--primary)}
.faq-accordion .accordion-button:focus{box-shadow:inset 0 0 0 2px var(--primary)}
.faq-accordion .accordion-body{
  padding:4px 24px 22px 24px;font-size:15.5px;color:var(--muted);line-height:1.9;
  background:rgba(255,255,255,.02);
}

/* ---------- 相关分类胶囊 ---------- */
.chip-group{display:flex;flex-wrap:wrap;gap:12px}
.chip{
  display:inline-flex;align-items:center;gap:8px;padding:9px 20px;border-radius:var(--r-pill);
  border:1px solid var(--line);color:var(--muted);font-size:14.5px;background:rgba(255,255,255,.02);
}
.chip:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.chip.current{border-color:rgba(216,222,233,.4);color:var(--moon);background:rgba(216,222,233,.08)}

/* ---------- 收藏 / 分享条带 ---------- */
.cta-band{
  background:linear-gradient(115deg,rgba(26,26,36,.96),rgba(18,18,26,.92));
  border:1px solid var(--line);border-radius:var(--r-lg);padding:30px 32px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;
  box-shadow:var(--sh-1);
}
.cta-band .band-text strong{display:block;font-size:20px;margin-bottom:6px}
.cta-band .band-text span{font-size:14.5px;color:var(--muted)}
.band-actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px}
.btn-fav.saved{background:var(--accent);border-color:var(--accent);color:#1A0C04;font-weight:700}
.social-dots{display:flex;gap:10px;margin-left:6px}
.social-dots a{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--muted);font-size:14px;background:rgba(255,255,255,.02);
}
.social-dots a:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#08080C;border-top:1px solid var(--line-soft);padding:72px 0 0;
  position:relative;z-index:1;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:48px;
}
.footer-about .brand{margin-bottom:18px}
.footer-about p{font-size:14.5px;color:var(--muted);max-width:340px}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.footer-tags span{
  font-size:12px;color:var(--dim);padding:4px 12px;border-radius:var(--r-pill);
  border:1px solid var(--line);
}
.site-footer h4{font-size:15px;margin-bottom:18px;color:var(--text)}
.footer-links li{margin-bottom:11px}
.footer-links a{font-size:14px;color:var(--muted)}
.footer-links a:hover{color:var(--primary)}
.footer-contact p{font-size:14px;color:var(--muted);margin-bottom:12px}
.footer-bottom{
  border-top:1px solid var(--line-soft);padding:22px 0;display:flex;flex-wrap:wrap;
  align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--dim);
}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:50%;
  display:none;place-items:center;background:var(--surface-2);border:1px solid var(--line);
  color:var(--muted);z-index:1040;
}
.to-top.show{display:grid}
.to-top:hover{color:var(--primary);border-color:var(--line-hover);transform:translateY(-3px)}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .page-hero h1{font-size:40px}
  .stage-flow{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stage-item::after{display:none}
}
@media (max-width:991.98px){
  body{padding-top:88px}
  .nav-links{
    position:fixed;top:88px;left:16px;right:16px;z-index:1031;
    flex-direction:column;align-items:stretch;gap:4px;margin:0;padding:12px;
    background:rgba(10,10,15,.98);border:1px solid var(--line);border-radius:20px;
    box-shadow:var(--sh-2);display:none;
  }
  .nav-links.open{display:flex}
  .nav-link{padding:14px 16px;border-radius:12px;font-size:16px}
  .nav-toggle{display:grid;place-items:center;margin-left:auto}
  .nav-actions .btn-glow{display:none}
  .section{padding:72px 0}
  .insight{grid-template-columns:1fr;padding:22px}
  .pit-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:26px 24px}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .page-hero h1{font-size:32px}
  .hero-inner{padding:48px 0 46px;min-height:340px}
  .hero-lead{font-size:15.5px}
  .hero-stats{gap:24px}
  .stat-item .stat-num{font-size:26px}
  .section{padding:60px 0}
  .section-title{font-size:26px}
  .dual-grid{grid-template-columns:1fr}
  .stage-flow{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .band-actions{width:100%}
  .band-actions .btn{flex:1 1 auto}
  .social-dots{margin-left:0}
  .to-top{right:16px;bottom:16px}
  body::before{display:none}
}
@media (max-width:575.98px){
  .container-xl{padding-left:18px;padding-right:18px}
  .nav-shell{padding-left:14px}
  .brand-text{font-size:14px}
  .page-hero h1{font-size:28px}
  .section{padding:52px 0}
  .section-title{font-size:23px}
  .cta-band{flex-direction:column;align-items:flex-start}
}

/* roulang page: category5 */
:root{
  --bg:#0A0A0F;
  --bg-2:#12121A;
  --bg-3:#1A1A24;
  --light:#F4F5F7;
  --primary:#23D3B0;
  --primary-dark:#0E5B4C;
  --accent:#FF7A3D;
  --violet:#9A8CFF;
  --page-accent:#F5C542;
  --text:#F2F4F7;
  --text-2:#A7ADBB;
  --text-3:#6C7280;
  --border:rgba(255,255,255,.08);
  --border-strong:rgba(255,255,255,.16);
  --radius-pill:999px;
  --radius-card:18px;
  --radius-lg:24px;
  --radius-sm:12px;
  --shadow:0 1px 0 rgba(255,255,255,.04), 0 8px 24px rgba(0,0,0,.45);
  --shadow-hover:0 18px 40px rgba(0,0,0,.55);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  background:var(--bg);
  color:var(--text);
  font-family:'Noto Sans SC','Source Han Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  font-size:17px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease);}
a:hover{color:#5CE7CB;}
h1,h2,h3,h4{font-weight:700;line-height:1.25;letter-spacing:-.01em;margin:0;color:var(--text);}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
.num,.en{font-family:'Chakra Petch','Rajdhani','Noto Sans SC',sans-serif;font-variant-numeric:tabular-nums;letter-spacing:.02em;}
.container-xl{max-width:1164px;margin:0 auto;padding:0 24px;}

/* ===== 悬浮胶囊导航 ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  padding:14px 20px 0;
  transition:padding .22s var(--ease);
}
.nav-shell{
  position:relative;z-index:2;
  max-width:1200px;margin:0 auto;
  display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:16px;
  height:68px;padding:0 14px 0 20px;
  background:rgba(18,18,26,.72);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid var(--border);
  border-radius:var(--radius-pill);
  box-shadow:0 8px 24px rgba(0,0,0,.35);
  transition:height .22s var(--ease),background-color .22s var(--ease),border-color .22s var(--ease);
}
.site-header.is-scrolled{padding-top:10px;}
.site-header.is-scrolled .nav-shell{height:60px;background:rgba(18,18,26,.9);border-color:rgba(255,255,255,.1);}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:700;font-size:16px;letter-spacing:.01em;}
.brand:hover{color:var(--text);}
.brand-mark{
  width:32px;height:32px;flex:0 0 32px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;
  background:linear-gradient(140deg,#23D3B0,#0E5B4C);
  color:#06231D;font-size:14px;
  box-shadow:0 0 0 1px rgba(35,211,176,.35),0 6px 16px rgba(35,211,176,.18);
}
.brand-text{white-space:nowrap;}
.nav-links{display:flex;align-items:center;justify-content:center;gap:4px;}
.nav-link{
  display:inline-flex;align-items:center;height:40px;padding:0 15px;
  border-radius:var(--radius-pill);
  color:var(--text-2);font-size:15px;font-weight:500;
  white-space:nowrap;
}
.nav-link:hover{background:rgba(255,255,255,.08);color:var(--primary);}
.nav-link.active{background:rgba(35,211,176,.12);color:var(--primary);}
.nav-actions{display:flex;align-items:center;gap:8px;position:relative;z-index:3;}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:50%;
  background:rgba(255,255,255,.06);border:1px solid var(--border);
  color:var(--text);font-size:16px;align-items:center;justify-content:center;
  transition:background-color .2s var(--ease),color .2s var(--ease);
}
.nav-toggle:hover{background:rgba(35,211,176,.16);color:var(--primary);}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-pill);
  font-size:15px;font-weight:500;line-height:1;
  padding:13px 26px;border:1px solid transparent;
  transition:transform .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-glow{background:var(--primary);color:#06231D;padding:12px 22px;font-weight:700;}
.btn-glow:hover{background:#3FE4C3;color:#06231D;transform:translateY(-2px);box-shadow:0 12px 28px rgba(35,211,176,.28);}
.btn-ghost{border-color:var(--border-strong);color:var(--text);background:transparent;}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);}
.btn-block{width:100%;}

/* ===== 面包屑 ===== */
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);margin-bottom:26px;
}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--primary);}
.crumb span{color:rgba(255,255,255,.22);}
.crumb em{font-style:normal;color:var(--page-accent);}

/* ===== 分类页 Hero ===== */
.page-hero{
  position:relative;
  padding:132px 0 64px;
  min-height:400px;
  display:flex;align-items:center;
  background-image:linear-gradient(90deg,rgba(10,10,15,.95) 0%,rgba(10,10,15,.78) 46%,rgba(10,10,15,.5) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center 38%;
  border-bottom:1px solid var(--border);
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:34px 34px;
  opacity:.22;
  mask-image:linear-gradient(90deg,rgba(0,0,0,.9),transparent 72%);
  -webkit-mask-image:linear-gradient(90deg,rgba(0,0,0,.9),transparent 72%);
}
.page-hero .container-xl{position:relative;z-index:2;}
.hero-inner{max-width:760px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:var(--radius-pill);
  background:rgba(245,197,66,.1);
  border:1px solid rgba(245,197,66,.32);
  color:var(--page-accent);
  font-size:12px;letter-spacing:.08em;font-weight:500;
  margin-bottom:20px;
}
.hero-title{
  font-size:clamp(32px,4.4vw,50px);
  font-weight:800;
  letter-spacing:-.02em;
  margin-bottom:18px;
}
.hero-title .hl{color:var(--primary);}
.hero-sub{
  font-size:17px;line-height:1.85;color:var(--text-2);
  max-width:640px;margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ===== 统计条 ===== */
.stat-row{
  display:flex;flex-wrap:wrap;gap:14px 42px;
  margin-top:38px;padding-top:26px;
  border-top:1px solid var(--border);
}
.stat-row li{display:flex;align-items:baseline;gap:10px;}
.stat-row .num{font-size:26px;font-weight:700;color:var(--page-accent);line-height:1;}
.stat-label{font-size:14px;color:var(--text-3);}

/* ===== 板块 ===== */
.section{padding:96px 0;}
.section-alt{background:#0C0C13;}
.section-head{margin-bottom:44px;max-width:760px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;color:var(--page-accent);
  margin-bottom:14px;text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--page-accent);opacity:.7;}
.section-head h2{font-size:clamp(25px,3vw,32px);margin-bottom:14px;}
.section-head p{color:var(--text-2);font-size:16px;margin:0;}

/* ===== 大图分割段 ===== */
.split{
  display:grid;grid-template-columns:1.05fr .95fr;
  gap:56px;align-items:center;
}
.split-media img{
  width:100%;border-radius:var(--radius-lg);
  border:1px solid var(--border);
  box-shadow:var(--shadow);
  object-fit:cover;aspect-ratio:4/3;
}
.split-body h2{font-size:clamp(25px,3vw,32px);margin-bottom:16px;}
.split-body p{color:var(--text-2);font-size:16px;}
.nlist{margin-top:26px;display:grid;gap:14px;}
.nlist li{
  display:grid;grid-template-columns:44px 1fr;gap:14px;align-items:start;
  padding:16px 18px;
  background:var(--bg-2);border:1px solid var(--border);border-radius:14px;
  transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.nlist li:hover{border-color:rgba(35,211,176,.3);transform:translateY(-3px);}
.nlist .idx{font-size:20px;font-weight:700;color:var(--page-accent);line-height:1.3;}
.nlist strong{display:block;font-size:16px;font-weight:700;margin-bottom:4px;}
.nlist span.desc{font-size:14px;color:var(--text-3);line-height:1.7;}

/* ===== 手风琴 FAQ ===== */
.faq-accordion{max-width:920px;}
.faq-accordion .accordion-item{
  position:relative;
  background:var(--bg-2);
  border:1px solid var(--border);
  border-radius:14px;
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .2s var(--ease),background-color .2s var(--ease);
}
.faq-accordion .accordion-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--primary);opacity:0;transition:opacity .2s var(--ease);
}
.faq-accordion .accordion-item:has(.accordion-button:not(.collapsed)){
  border-color:rgba(35,211,176,.3);
  background:#15151E;
}
.faq-accordion .accordion-item:has(.accordion-button:not(.collapsed))::before{opacity:1;}
.faq-accordion .accordion-header{margin:0;}
.faq-accordion .accordion-button{
  display:flex;align-items:center;gap:16px;
  width:100%;padding:20px 22px;
  background:transparent;border:0;box-shadow:none;
  color:var(--text);font-size:17px;font-weight:500;text-align:left;
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--text);background:rgba(255,255,255,.03);}
.faq-accordion .accordion-button:focus{box-shadow:none;outline:none;}
.faq-accordion .accordion-button:focus-visible{outline:2px solid var(--primary);outline-offset:-2px;}
.faq-accordion .accordion-button::after{display:none;}
.faq-index{
  flex:0 0 auto;font-size:14px;font-weight:700;color:var(--page-accent);
  opacity:.85;min-width:26px;
}
.faq-title{flex:1 1 auto;line-height:1.5;}
.faq-sign{
  position:relative;flex:0 0 26px;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--border-strong);
  transition:border-color .2s var(--ease),background-color .2s var(--ease);
}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  background:var(--text-2);transition:transform .2s var(--ease),background-color .2s var(--ease);
}
.faq-sign::before{width:11px;height:1.5px;}
.faq-sign::after{width:1.5px;height:11px;}
.accordion-button:not(.collapsed) .faq-sign{border-color:var(--primary);background:rgba(35,211,176,.12);}
.accordion-button:not(.collapsed) .faq-sign::before{background:var(--primary);}
.accordion-button:not(.collapsed) .faq-sign::after{transform:translate(-50%,-50%) scaleY(0);}
.faq-accordion .accordion-body{
  padding:2px 24px 22px 64px;
  color:var(--text-2);font-size:16px;line-height:1.85;
}
.faq-accordion .accordion-body p{margin-bottom:.9em;}
.faq-accordion .accordion-body p:last-child{margin-bottom:0;}
.faq-accordion .accordion-body strong{color:var(--text);font-weight:500;}

/* ===== 快问快答两列 ===== */
.qa-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.qa-item{
  background:var(--bg-2);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:24px 26px;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.qa-item:hover{transform:translateY(-4px);border-color:rgba(35,211,176,.3);box-shadow:var(--shadow-hover);}
.qa-item h3{
  display:flex;gap:10px;align-items:flex-start;
  font-size:17px;font-weight:700;margin-bottom:12px;line-height:1.55;
}
.qa-item p{display:flex;gap:10px;align-items:flex-start;color:var(--text-2);font-size:15px;line-height:1.8;margin:0;}
.qa-mark{
  flex:0 0 22px;width:22px;height:22px;border-radius:6px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;line-height:1;margin-top:3px;
  background:rgba(245,197,66,.14);color:var(--page-accent);border:1px solid rgba(245,197,66,.3);
}
.qa-mark.ans{background:rgba(35,211,176,.12);color:var(--primary);border-color:rgba(35,211,176,.3);}

/* ===== 说明卡 ===== */
.note-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.note-card{
  position:relative;
  background:var(--bg-2);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:28px 26px 26px;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.note-card:hover{transform:translateY(-4px);border-color:rgba(255,255,255,.16);box-shadow:var(--shadow-hover);}
.note-card .note-idx{font-size:13px;font-weight:700;color:var(--page-accent);letter-spacing:.1em;display:block;margin-bottom:14px;}
.note-card h3{font-size:18px;margin-bottom:10px;}
.note-card p{color:var(--text-2);font-size:15px;line-height:1.8;margin:0;}
.note-card::after{
  content:"";position:absolute;left:26px;right:26px;bottom:0;height:1px;
  background:linear-gradient(90deg,var(--page-accent),transparent);
  opacity:.3;
}

/* ===== 相关分类胶囊 ===== */
.cat-pills{display:flex;flex-wrap:wrap;gap:12px;}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 22px;border-radius:var(--radius-pill);
  border:1px solid var(--border-strong);color:var(--text-2);
  font-size:15px;background:transparent;
  transition:border-color .2s var(--ease),color .2s var(--ease),background-color .2s var(--ease),transform .2s var(--ease);
}
.pill:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);}
.pill.is-active{border-color:rgba(245,197,66,.4);color:var(--page-accent);background:rgba(245,197,66,.08);}

/* ===== 收藏 / 分享条带 ===== */
.cta-strip{
  position:relative;
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
  background-image:linear-gradient(90deg,rgba(10,10,15,.96),rgba(10,10,15,.8)),url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
}
.cta-strip .inner{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:52px 0;flex-wrap:wrap;
}
.cta-strip h2{font-size:clamp(22px,2.6vw,28px);margin-bottom:10px;}
.cta-strip p{color:var(--text-2);font-size:15px;margin:0;}
.cta-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.btn-fav{background:var(--primary);color:#06231D;font-weight:700;}
.btn-fav:hover{background:#3FE4C3;color:#06231D;transform:translateY(-2px);}
.btn-fav.is-active{background:var(--accent);color:#2A0F02;}
.btn-fav.is-active:hover{background:#FF9159;color:#2A0F02;}
.social-row{display:flex;gap:10px;margin-left:6px;}
.social-btn{
  width:40px;height:40px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--border-strong);color:var(--text-2);font-size:15px;
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.social-btn:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);}

/* ===== 页脚 ===== */
.site-footer{background:#08080C;padding:72px 0 0;border-top:1px solid var(--border);}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:44px;
  padding-bottom:52px;
}
.footer-about p{color:var(--text-3);font-size:14px;line-height:1.85;margin:18px 0 20px;max-width:340px;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.footer-tags span{
  font-size:12px;color:var(--text-3);
  padding:5px 13px;border-radius:var(--radius-pill);
  border:1px solid var(--border);
}
.site-footer h4{font-size:15px;margin-bottom:18px;color:var(--text);font-weight:700;}
.footer-links li{margin-bottom:11px;}
.footer-links a{color:var(--text-3);font-size:14px;}
.footer-links a:hover{color:var(--primary);}
.footer-contact p{color:var(--text-3);font-size:14px;line-height:1.8;margin-bottom:12px;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 0 26px;border-top:1px solid var(--border);
  color:var(--text-3);font-size:13px;
}

/* ===== 响应式 ===== */
@media (max-width:1199px){
  .split{gap:40px;}
  .section{padding:84px 0;}
}
@media (max-width:991px){
  .nav-shell{grid-template-columns:1fr auto;height:62px;}
  .nav-links{
    position:fixed;top:0;right:0;bottom:0;
    width:min(340px,86vw);
    background:#0D0D14;
    border-left:1px solid var(--border);
    flex-direction:column;align-items:stretch;justify-content:flex-start;gap:0;
    padding:92px 20px 28px;
    transform:translateX(103%);
    transition:transform .26s var(--ease);
    z-index:1;overflow-y:auto;
  }
  .nav-links.is-open{transform:none;}
  .nav-link{
    height:50px;width:100%;border-radius:0;padding:0 12px;
    font-size:16px;border-bottom:1px solid var(--border);
  }
  .nav-link.active{background:rgba(35,211,176,.08);}
  .nav-toggle{display:inline-flex;}
  .split{grid-template-columns:1fr;gap:32px;}
  .split-media{order:-1;}
  .qa-grid{grid-template-columns:1fr;}
  .note-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .page-hero{padding:118px 0 56px;min-height:auto;}
  .section{padding:72px 0;}
  .cta-strip .inner{padding:44px 0;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container-xl{padding:0 18px;}
  .hero-title{font-size:31px;}
  .hero-sub{font-size:16px;}
  .stat-row{gap:14px 28px;}
  .stat-row .num{font-size:22px;}
  .section{padding:60px 0;}
  .section-head{margin-bottom:32px;}
  .faq-accordion .accordion-body{padding:2px 20px 20px 20px;}
  .faq-accordion .accordion-button{padding:18px 18px;font-size:16px;gap:12px;}
  .cta-strip h2{font-size:23px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .social-row{margin-left:0;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:575px){
  .site-header{padding:10px 12px 0;}
  .brand-text{font-size:14px;}
  .nav-actions .btn-glow{display:none;}
  .page-hero{padding:104px 0 48px;}
  .hero-title{font-size:27px;}
  .hero-actions .btn{width:100%;}
  .section{padding:52px 0;}
  .qa-item,.note-card{padding:20px;}
  .crumb{font-size:12px;}
}