/* roulang page: index */
:root{
  --bg:#060B16;
  --bg-deep:#03060D;
  --surface:#0E1729;
  --surface-2:#121F36;
  --glass:rgba(18,30,52,.72);
  --primary:#2FD8FF;
  --secondary:#6C5CFF;
  --accent:#FFC857;
  --text:#E8F1FF;
  --muted:#9FB2CC;
  --weak:#6B7C99;
  --line:rgba(120,180,255,.14);
  --line-strong:rgba(120,180,255,.28);
  --ok:#3BE0A0;
  --warn:#FFB14E;
  --danger:#FF6B7A;
  --r-card:16px;
  --r-btn:12px;
  --r-img:14px;
  --shadow-card:0 18px 40px -20px rgba(3,8,20,.55);
  --inset-hi:inset 0 1px 0 rgba(255,255,255,.06);
  --wrap:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Inter,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(rgba(120,180,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(120,180,255,.04) 1px,transparent 1px);
  background-size:24px 24px;
}
body::after{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(620px 420px at 88% -6%,rgba(47,216,255,.10),transparent 62%),
    radial-gradient(520px 400px at -6% 22%,rgba(108,92,255,.10),transparent 62%);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;line-height:1.32;font-weight:700;letter-spacing:.2px}
p{margin:0}
button,input{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.shell{position:relative;z-index:1}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px;width:100%}
@media (min-width:1400px){.wrap{max-width:1320px}}

/* ---------- 顶部信息条 ---------- */
.topbar{
  height:36px;background:var(--bg-deep);border-bottom:1px solid var(--line);
  font-size:12.5px;color:var(--weak);position:relative;z-index:30;
}
.topbar-inner{
  max-width:var(--wrap);margin:0 auto;padding:0 24px;height:36px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.topbar-left{display:flex;align-items:center;gap:14px;min-width:0}
.topbar .domain{color:var(--primary);letter-spacing:.5px;font-weight:600}
.topbar-left .tip{color:var(--weak);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-actions{display:flex;align-items:center;gap:20px;flex-shrink:0}
.topbar-actions button{
  background:none;border:0;color:var(--muted);font-size:12.5px;cursor:pointer;
  padding:0;display:inline-flex;align-items:center;gap:6px;transition:color .2s var(--ease);
}
.topbar-actions button:hover{color:var(--primary)}

/* ---------- 主导航 ---------- */
.mainnav{
  position:sticky;top:0;z-index:40;
  background:rgba(8,14,26,.86);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:background .25s var(--ease);
}
.nav-inner{
  max-width:var(--wrap);margin:0 auto;padding:0 24px;height:68px;
  display:flex;align-items:center;gap:22px;
  transition:height .25s var(--ease);
}
.mainnav.compact .nav-inner{height:60px}
.mainnav.compact{background:rgba(5,9,18,.94)}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:26px;height:26px;border-radius:8px;flex-shrink:0;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  box-shadow:0 0 18px rgba(47,216,255,.55);
  position:relative;
}
.logo-mark::after{
  content:"";position:absolute;inset:7px;border-radius:3px;background:rgba(6,11,22,.85);
}
.logo-text{font-size:19px;font-weight:800;letter-spacing:.4px;color:var(--text)}
.logo-sub{font-size:11px;color:var(--weak);letter-spacing:1.6px;display:block;line-height:1;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{
  position:relative;color:var(--muted);font-size:15px;padding:10px 14px;border-radius:10px;
  transition:color .2s var(--ease),background .2s var(--ease);white-space:nowrap;
}
.nav-links a:hover{color:var(--text);background:rgba(47,216,255,.07)}
.nav-links a.active{color:var(--text)}
.nav-links a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--secondary));
  box-shadow:0 0 12px rgba(47,216,255,.85);
}
.nav-cta{margin-left:10px;flex-shrink:0}
.burger{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line-strong);
  background:rgba(18,30,52,.6);color:var(--text);align-items:center;justify-content:center;
  font-size:18px;cursor:pointer;
}
.burger:hover{border-color:var(--primary);color:var(--primary)}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,6,13,.7);backdrop-filter:blur(4px);
  opacity:0;visibility:hidden;transition:opacity .28s var(--ease),visibility .28s;z-index:60;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:min(86vw,340px);z-index:70;
  background:linear-gradient(180deg,#0B1526,#070D19);
  border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .3s var(--ease);
  padding:22px 20px;overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--line-strong);
  background:transparent;color:var(--muted);cursor:pointer;
}
.drawer-close:hover{color:var(--primary);border-color:var(--primary)}
.drawer a.drawer-link{
  display:block;padding:13px 14px;border-radius:12px;color:var(--muted);font-size:15.5px;
  border:1px solid transparent;transition:all .2s var(--ease);
}
.drawer a.drawer-link:hover{color:var(--text);background:rgba(47,216,255,.08);border-color:var(--line)}
.drawer a.drawer-link.active{color:var(--primary);background:rgba(47,216,255,.10);border-color:rgba(47,216,255,.3)}
.drawer-foot{margin-top:24px;padding-top:18px;border-top:1px solid var(--line);font-size:12.5px;color:var(--weak);line-height:1.9}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;padding:12px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:all .22s var(--ease);line-height:1.2;
}
.btn-glow{
  background:linear-gradient(135deg,rgba(47,216,255,.24),rgba(108,92,255,.30));
  color:#EAF7FF;border-color:rgba(47,216,255,.45);
  box-shadow:0 0 0 1px rgba(47,216,255,.25),0 10px 30px -8px rgba(47,216,255,.45),var(--inset-hi);
}
.btn-glow:hover{color:#fff;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(47,216,255,.62),0 14px 36px -6px rgba(47,216,255,.62),var(--inset-hi)}
.btn-glow:active{transform:translateY(1px)}
.btn-ghost{background:rgba(18,30,52,.5);color:var(--text);border-color:var(--line-strong)}
.btn-ghost:hover{color:var(--primary);border-color:var(--primary);background:rgba(47,216,255,.08)}
.btn-sm{padding:9px 16px;font-size:13.5px}

/* ---------- 标签 / 徽章 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
  font-size:13px;color:var(--muted);border:1px solid var(--line);background:rgba(18,30,52,.6);
}
.tag-primary{color:#BFEEFF;border-color:rgba(47,216,255,.42);background:rgba(47,216,255,.10)}
.tag-warn{color:#FFE1B0;border-color:rgba(255,200,87,.42);background:rgba(255,200,87,.10)}
.tag-ok{color:#B9F5DF;border-color:rgba(59,224,160,.38);background:rgba(59,224,160,.10)}
.count-badge{
  font-size:12.5px;padding:3px 10px;border-radius:999px;color:var(--muted);
  border:1px solid var(--line);background:rgba(10,18,34,.8);font-variant-numeric:tabular-nums;
}

/* ---------- Hero ---------- */
.hero{padding:56px 0 24px;position:relative}
.hero-grid{
  display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);
  gap:44px;align-items:center;
}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px}
.hero h1{
  font-size:42px;font-weight:800;letter-spacing:.4px;line-height:1.24;margin-bottom:18px;
}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(100deg,var(--primary),var(--secondary));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:17px;color:var(--muted);max-width:640px;margin-bottom:26px;line-height:1.9}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px}
.hero-points{
  display:flex;flex-wrap:wrap;gap:0;border-top:1px solid var(--line);padding-top:18px;
}
.hero-points li{
  list-style:none;font-size:14px;color:var(--muted);padding:0 18px;position:relative;
}
.hero-points li:first-child{padding-left:0}
.hero-points li+li::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:1px;height:14px;background:var(--line-strong);
}
.hero-points li i{color:var(--primary);margin-right:7px}
.hero-media{position:relative}
.hero-media img{
  width:100%;border-radius:20px;border:1px solid rgba(120,180,255,.22);
  box-shadow:var(--shadow-card),var(--inset-hi);object-fit:cover;aspect-ratio:4/3;
}
.hero-media::after{
  content:"";position:absolute;inset:0;border-radius:20px;
  background:linear-gradient(180deg,rgba(6,11,22,0) 42%,rgba(6,11,22,.78) 100%);
  pointer-events:none;
}
.hero-media-tag{
  position:absolute;left:18px;bottom:18px;z-index:2;
  display:flex;align-items:center;gap:10px;padding:9px 14px;border-radius:999px;
  background:rgba(6,11,22,.72);border:1px solid rgba(47,216,255,.35);
  font-size:13px;color:#CFEAFF;backdrop-filter:blur(8px);
}
.pulse-dot{
  width:8px;height:8px;border-radius:50%;background:var(--ok);
  box-shadow:0 0 0 4px rgba(59,224,160,.18);
  animation:pulse 2s infinite;
}
@keyframes pulse{0%,100%{box-shadow:0 0 0 3px rgba(59,224,160,.18)}50%{box-shadow:0 0 0 8px rgba(59,224,160,.05)}}

/* ---------- 实时状态条 ---------- */
.status-band{
  margin-top:34px;border:1px solid var(--line);border-radius:var(--r-card);
  background:linear-gradient(90deg,rgba(47,216,255,.08),rgba(108,92,255,.06) 55%,rgba(18,30,52,.4));
  padding:16px 22px;display:flex;flex-wrap:wrap;align-items:center;gap:26px;
  box-shadow:var(--inset-hi);
}
.status-item{display:flex;align-items:baseline;gap:9px;font-size:13.5px;color:var(--muted)}
.status-item strong{font-size:19px;color:var(--text);font-variant-numeric:tabular-nums;font-weight:800}
.status-item .dot-ok{color:var(--ok)}

/* ---------- 通用板块 ---------- */
.section{padding:92px 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:30px;flex-wrap:wrap}
.section-head h2{font-size:28px;font-weight:700}
.section-head .desc{font-size:14.5px;color:var(--muted);margin-top:10px;max-width:680px}
.section-link{font-size:14px;color:var(--muted);display:inline-flex;align-items:center;gap:7px;transition:color .2s var(--ease)}
.section-link:hover{color:var(--primary)}
.section-link i{transition:transform .2s var(--ease)}
.section-link:hover i{transform:translateX(3px)}

/* ---------- 合集目录 ---------- */
.catalog{
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  background:var(--glass);backdrop-filter:blur(12px);box-shadow:var(--shadow-card),var(--inset-hi);
}
.catalog-grid{display:grid;grid-template-columns:1fr 1fr}
.cat-row{
  display:grid;grid-template-columns:auto 1fr auto auto;align-items:center;gap:18px;
  padding:22px 26px;border-bottom:1px solid var(--line);
  transition:background .22s var(--ease);
}
.catalog-grid .cat-row:nth-child(odd){border-right:1px solid var(--line)}
.catalog-grid .cat-row:nth-last-child(-n+2){border-bottom:0}
.cat-row:hover{background:rgba(47,216,255,.06)}
.cat-num{
  font-size:20px;font-weight:800;color:var(--primary);font-variant-numeric:tabular-nums;
  letter-spacing:1px;min-width:36px;
}
.cat-main h3{font-size:17px;font-weight:600;margin-bottom:5px;color:var(--text)}
.cat-main p{font-size:13.5px;color:var(--weak);line-height:1.7}
.cat-arrow{color:var(--weak);transition:transform .22s var(--ease),color .22s var(--ease)}
.cat-row:hover .cat-arrow{transform:translateX(3px);color:var(--primary)}
.cat-row:hover .cat-main h3{color:#FFFFFF}

/* ---------- 精选条目 ---------- */
.feature-grid{
  display:grid;grid-template-columns:repeat(12,1fr);gap:24px;
}
.card{
  border-radius:var(--r-card);overflow:hidden;position:relative;
  background:var(--surface);border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.06),transparent);
  transition:background .24s var(--ease);z-index:3;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 26px 48px -22px rgba(3,8,20,.75)}
.card:hover::before{background:linear-gradient(90deg,transparent,rgba(255,255,255,.16),transparent)}
.card-media{position:relative;overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .28s var(--ease)}
.card:hover .card-media img{transform:scale(1.04)}
.card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,11,22,0) 40%,rgba(6,11,22,.8))}
.card-badge{
  position:absolute;left:16px;bottom:16px;z-index:2;font-size:12.5px;padding:5px 12px;
  border-radius:999px;background:rgba(6,11,22,.75);border:1px solid rgba(47,216,255,.35);color:#BFEEFF;
}
.feature-main{grid-column:span 7;grid-row:span 2;display:flex;flex-direction:column}
.feature-main .card-media{aspect-ratio:16/9}
.feature-main .card-body{padding:24px 26px 26px}
.feature-side{grid-column:span 5;display:flex;gap:18px;padding:18px}
.feature-side .card-thumb{width:132px;height:110px;flex-shrink:0;border-radius:12px;overflow:hidden;position:relative}
.feature-side .card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .28s var(--ease)}
.feature-side:hover .card-thumb img{transform:scale(1.05)}
.card-title{font-size:18px;font-weight:600;margin-bottom:9px;line-height:1.5}
.card-title a{transition:color .2s var(--ease)}
.card:hover .card-title a{color:#FFFFFF}
.card-text{font-size:14.5px;color:var(--muted);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{
  display:flex;align-items:center;gap:14px;margin-top:14px;font-size:13px;color:var(--weak);
}
.card-meta i{margin-right:5px;color:var(--primary);opacity:.85}
.card-link{
  display:inline-flex;align-items:center;gap:7px;margin-top:16px;font-size:14px;color:var(--primary);
}
.card-link i{transition:transform .2s var(--ease)}
.card:hover .card-link i{transform:translateX(3px)}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.news-card{
  display:flex;gap:18px;padding:18px;border-radius:var(--r-card);
  background:var(--surface);border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.news-card:hover{transform:translateY(-3px);border-color:var(--line-strong)}
.news-thumb{
  width:96px;height:96px;flex-shrink:0;border-radius:12px;overflow:hidden;position:relative;
  border:1px solid var(--line);
}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .28s var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.06)}
.news-body{min-width:0;display:flex;flex-direction:column}
.news-metas{display:flex;align-items:center;gap:12px;font-size:12.5px;color:var(--weak);margin-bottom:7px}
.news-body h3{font-size:16.5px;font-weight:600;line-height:1.5;margin-bottom:7px}
.news-body h3 a{transition:color .2s var(--ease)}
.news-card:hover h3 a{color:var(--primary)}
.news-body p{
  font-size:13.5px;color:var(--muted);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.empty-state{
  min-height:220px;border-radius:var(--r-card);border:1px dashed var(--line-strong);
  background:var(--glass);backdrop-filter:blur(10px);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;text-align:center;padding:30px;
}
.empty-state i{font-size:28px;color:var(--primary);opacity:.8}
.empty-state p{color:var(--muted);font-size:15px}

/* ---------- 相关推荐 ---------- */
.rail-wrap{position:relative}
.rail{
  display:flex;gap:20px;overflow-x:auto;padding-bottom:12px;scroll-snap-type:x mandatory;
  scrollbar-width:thin;
}
.rail::-webkit-scrollbar{height:6px}
.rail::-webkit-scrollbar-track{background:rgba(120,180,255,.06);border-radius:999px}
.rail::-webkit-scrollbar-thumb{background:rgba(47,216,255,.35);border-radius:999px}
.rail-card{
  flex:0 0 268px;scroll-snap-align:start;border-radius:var(--r-card);overflow:hidden;
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-card);
  transition:transform .24s var(--ease),border-color .24s var(--ease);position:relative;
}
.rail-card:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.rail-media{position:relative;aspect-ratio:16/10;overflow:hidden}
.rail-media img{width:100%;height:100%;object-fit:cover;transition:transform .28s var(--ease)}
.rail-card:hover .rail-media img{transform:scale(1.04)}
.rail-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,11,22,.05),rgba(6,11,22,.65))}
.rail-body{padding:15px 16px 17px}
.rail-body h3{font-size:16px;font-weight:600;line-height:1.55;margin-bottom:10px}
.rail-foot{display:flex;align-items:center;justify-content:space-between}
.rail-arrow{
  width:30px;height:30px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line-strong);color:var(--primary);font-size:12px;
  transition:all .22s var(--ease);
}
.rail-card:hover .rail-arrow{background:rgba(47,216,255,.14);border-color:var(--primary)}

/* ---------- CTA ---------- */
.cta-band{
  margin-top:92px;border-radius:20px;position:relative;overflow:hidden;
  border:1px solid var(--line-strong);
  background:var(--glass);backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card),var(--inset-hi);
  padding:42px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(420px 260px at 12% 120%,rgba(47,216,255,.18),transparent 65%),
    linear-gradient(rgba(120,180,255,.05) 1px,transparent 1px) 0 0/22px 22px,
    linear-gradient(90deg,rgba(120,180,255,.05) 1px,transparent 1px) 0 0/22px 22px;
}
.cta-band > *{position:relative;z-index:1}
.cta-band h2{font-size:26px;margin-bottom:12px}
.cta-band p{color:var(--muted);font-size:15px;max-width:620px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.copy-tip{
  margin-top:12px;font-size:13px;color:var(--ok);opacity:0;transition:opacity .3s var(--ease);
}
.copy-tip.show{opacity:1}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px}
.faq-wrap .accordion-item{
  background:transparent;border:0;border-bottom:1px solid var(--line);
}
.faq-wrap .accordion-item:last-child{border-bottom:0}
.faq-wrap .accordion-button{
  background:transparent;color:var(--text);font-size:18px;font-weight:600;
  padding:22px 6px;box-shadow:none;border-radius:0 !important;
}
.faq-wrap .accordion-button:not(.collapsed){color:var(--primary);background:transparent;box-shadow:none}
.faq-wrap .accordion-button:hover{color:var(--primary)}
.faq-wrap .accordion-button::after{
  filter:none;width:16px;height:16px;background-size:16px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='none' stroke='%232FD8FF' stroke-width='2' stroke-linecap='round' d='M2 5.5 8 11.5 14 5.5'/%3E%3C/svg%3E");
}
.faq-wrap .accordion-button:focus{box-shadow:none;outline:none}
.faq-wrap .accordion-body{
  padding:0 6px 24px;color:var(--muted);font-size:15px;line-height:1.85;background:transparent;
}

/* ---------- 页脚 ---------- */
.footer{
  margin-top:104px;background:var(--bg-deep);border-top:1px solid var(--line);
  position:relative;z-index:1;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding:58px 0 42px;
}
.footer h4{font-size:15px;color:var(--text);margin-bottom:18px;letter-spacing:.6px}
.footer p{font-size:13.5px;color:var(--weak);line-height:1.9}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-links{list-style:none;padding:0;margin:0}
.footer-links li{margin-bottom:11px}
.footer-links a{font-size:13.5px;color:var(--muted);transition:color .2s var(--ease),padding-left .2s var(--ease)}
.footer-links a:hover{color:var(--primary);padding-left:3px}
.footer-note{
  margin-top:16px;font-size:12.5px;color:var(--weak);
  border-left:2px solid rgba(47,216,255,.4);padding-left:12px;line-height:1.8;
}
.footer-sub{display:flex;gap:10px;margin-top:16px;flex-wrap:wrap}
.footer-sub input{
  flex:1 1 160px;min-width:0;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-btn);padding:11px 14px;color:var(--text);font-size:14px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.footer-sub input::placeholder{color:var(--weak)}
.footer-sub input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(47,216,255,.18)}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--weak);
}
.footer-bottom a{color:var(--weak);transition:color .2s var(--ease)}
.footer-bottom a:hover{color:var(--primary)}
.to-top{
  display:inline-flex;align-items:center;gap:7px;border:1px solid var(--line);
  border-radius:999px;padding:7px 14px;background:rgba(18,30,52,.5);color:var(--muted);cursor:pointer;
  transition:all .2s var(--ease);font-size:12.5px;
}
.to-top:hover{color:var(--primary);border-color:var(--primary)}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .hero h1{font-size:38px}
  .feature-main{grid-column:span 12;grid-row:auto}
  .feature-side{grid-column:span 6}
}
@media (max-width:992px){
  .nav-links,.nav-cta{display:none}
  .burger{display:inline-flex;margin-left:auto}
  .hero-grid{grid-template-columns:1fr;gap:30px}
  .hero-media{order:-1}
  .hero-media img{aspect-ratio:16/9}
  .hero h1{font-size:32px}
  .hero{padding-top:38px}
  .catalog-grid{grid-template-columns:1fr}
  .catalog-grid .cat-row:nth-child(odd){border-right:0}
  .catalog-grid .cat-row:nth-last-child(-n+2){border-bottom:1px solid var(--line)}
  .catalog-grid .cat-row:last-child{border-bottom:0}
  .news-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding-top:72px}
  .cta-band{margin-top:72px;padding:32px 26px}
}
@media (max-width:768px){
  .wrap{padding:0 16px}
  .topbar-inner{padding:0 16px}
  .nav-inner{padding:0 16px;height:62px}
  .hero h1{font-size:28px}
  .hero-sub{font-size:15.5px}
  .section{padding-top:56px}
  .section-head h2{font-size:23px}
  .feature-side{grid-column:span 12;flex-direction:row}
  .cta-band h2{font-size:22px}
  .footer{padding-top:0;margin-top:70px}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding:42px 0 30px}
  .feature-main .card-body{padding:20px}
  .cat-row{padding:18px;gap:12px}
  .faq-wrap .accordion-button{font-size:16.5px;padding:18px 4px}
}
@media (max-width:520px){
  .hero-points li{padding:6px 0;display:block}
  .hero-points li+li::before{display:none}
  .hero-points{border-top:1px solid var(--line)}
  .hero-actions .btn{width:100%;justify-content:center}
  .news-card{flex-direction:column}
  .news-thumb{width:100%;height:150px}
  .rail-card{flex:0 0 232px}
  .status-item strong{font-size:17px}
  .topbar-left .tip{display:none}
}

/* roulang page: article */
:root{
  --bg:#060B16;
  --bg-deep:#040810;
  --surface:#0E1729;
  --surface-2:#12203A;
  --glass:rgba(18,30,52,.72);
  --line:rgba(120,180,255,.14);
  --line-strong:rgba(120,180,255,.28);
  --cyan:#2FD8FF;
  --violet:#6C5CFF;
  --amber:#FFC857;
  --text:#E8F1FF;
  --text-2:#9FB2CC;
  --text-3:#6B7C99;
  --ok:#3BE0A0;
  --warn:#FFB14E;
  --err:#FF6B7A;
  --r-card:16px;
  --r-btn:12px;
  --r-img:14px;
  --r-pill:999px;
  --shadow:0 18px 40px -20px rgba(3,8,20,.55), inset 0 1px 0 rgba(255,255,255,.06);
  --shadow-glow:0 0 0 1px rgba(47,216,255,.45), 0 10px 30px -8px rgba(47,216,255,.45);
  --ease:240ms cubic-bezier(.22,.61,.36,1);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    radial-gradient(900px 520px at 10% -8%, rgba(47,216,255,.10), transparent 62%),
    radial-gradient(760px 460px at 100% 0%, rgba(108,92,255,.10), transparent 60%),
    linear-gradient(rgba(120,180,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,180,255,.04) 1px, transparent 1px);
  background-size:auto,auto,24px 24px,24px 24px;
  background-attachment:fixed,fixed,scroll,scroll;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--text-2);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--text)}
button,input{font-family:inherit}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}
.container,.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}

/* 顶部信息条 */
.topbar{height:36px;background:var(--bg-deep);border-bottom:1px solid var(--line);font-size:12.5px;color:var(--text-3)}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;height:100%}
.topbar-left{display:flex;align-items:center;gap:10px;white-space:nowrap;overflow:hidden}
.topbar-left .dot{width:6px;height:6px;border-radius:50%;background:var(--ok);box-shadow:0 0 8px rgba(59,224,160,.8);flex:none}
.topbar-left .dom{color:var(--text-2);letter-spacing:.4px}
.topbar-actions{display:flex;align-items:center;gap:18px}
.topbar-actions button{background:none;border:0;color:var(--text-3);font-size:12.5px;cursor:pointer;padding:0;transition:color var(--ease)}
.topbar-actions button:hover{color:var(--cyan)}

/* 主导航 */
.mainnav{
  position:sticky;top:0;z-index:80;
  height:68px;
  background:rgba(6,11,22,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:height var(--ease),background var(--ease);
}
.mainnav.scrolled{height:60px;background:rgba(5,9,18,.9)}
.nav-inner{max-width:1240px;margin:0 auto;padding:0 24px;height:100%;display:flex;align-items:center;gap:26px}
.logo{display:flex;align-items:center;gap:11px;color:var(--text);flex:none}
.logo-mark{
  width:22px;height:22px;flex:none;
  background:linear-gradient(135deg,var(--cyan),var(--violet));
  clip-path:polygon(50% 0,100% 100%,0 100%);
  box-shadow:0 0 14px rgba(47,216,255,.7);
}
.logo-text{display:block;font-size:17px;font-weight:800;letter-spacing:.4px;line-height:1.2}
.logo-sub{display:block;font-size:11px;color:var(--text-3);letter-spacing:2px;line-height:1.2}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-links a{
  position:relative;padding:8px 13px;border-radius:8px;font-size:15px;color:var(--text-2);
}
.nav-links a:hover{color:var(--text);background:rgba(47,216,255,.07)}
.nav-links a.active{color:var(--text)}
.nav-links a.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--cyan),var(--violet));
  box-shadow:0 0 12px rgba(47,216,255,.85);
}
.nav-cta{margin-left:auto}
.burger{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);
  background:rgba(18,30,52,.8);border:1px solid var(--line);color:var(--text);
  font-size:17px;align-items:center;justify-content:center;cursor:pointer;margin-left:auto;
}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  border:1px solid transparent;text-decoration:none;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),filter var(--ease);
}
.btn-sm{padding:9px 16px;font-size:13.5px}
.btn-glow{
  background:linear-gradient(135deg,rgba(47,216,255,.95),rgba(108,92,255,.95));
  color:#04101F;
  box-shadow:0 0 0 1px rgba(47,216,255,.45),0 10px 30px -8px rgba(47,216,255,.45);
}
.btn-glow:hover{filter:brightness(1.08);color:#04101F;box-shadow:0 0 0 1px rgba(47,216,255,.65),0 14px 40px -8px rgba(47,216,255,.7)}
.btn-outline{
  background:rgba(18,30,52,.5);color:var(--text);border-color:rgba(47,216,255,.4);
}
.btn-outline:hover{color:var(--text);border-color:var(--cyan);background:rgba(47,216,255,.1);box-shadow:0 10px 26px -14px rgba(47,216,255,.7)}
.btn:active{transform:translateY(1px)}

/* 面包屑 */
.crumb{padding:22px 0 4px;font-size:13.5px;color:var(--text-3)}
.crumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;align-items:center}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb .sep{color:var(--text-3);opacity:.6}
.crumb a{color:var(--text-3)}
.crumb a:hover{color:var(--cyan)}
.crumb .cur{color:var(--text-2);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* 文章头部 */
.article-hero{
  position:relative;padding:26px 0 42px;
  background-image:
    linear-gradient(180deg,rgba(6,11,22,.80),rgba(6,11,22,.96)),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--r-pill);font-size:12.5px;font-weight:600;
  color:var(--cyan);background:rgba(47,216,255,.1);border:1px solid rgba(47,216,255,.3);
}
.badge-amber{color:var(--amber);background:rgba(255,200,87,.1);border-color:rgba(255,200,87,.32)}
.badge-violet{color:#BDB6FF;background:rgba(108,92,255,.14);border-color:rgba(108,92,255,.36)}
.article-hero h1{
  margin:0 0 20px;font-size:40px;line-height:1.34;font-weight:800;letter-spacing:.2px;
  max-width:960px;
}
.meta-bar{display:flex;flex-wrap:wrap;gap:10px 24px;font-size:13.5px;color:var(--text-3);align-items:center}
.meta-bar span{display:inline-flex;align-items:center;gap:7px}
.meta-bar i{color:var(--cyan)}
.meta-bar .cat-link{color:var(--text-2);border-bottom:1px dashed rgba(47,216,255,.5)}
.meta-bar .cat-link:hover{color:var(--cyan)}

/* 布局 */
.article-layout{
  display:grid;grid-template-columns:220px minmax(0,1fr);
  gap:52px;align-items:start;padding:56px 0 0;
}
.toc{position:sticky;top:96px}
.toc h3{
  font-size:12.5px;font-weight:600;letter-spacing:2px;color:var(--text-3);
  margin:0 0 14px;text-transform:uppercase;
}
.toc ul{list-style:none;margin:0;padding:0;border-left:1px solid var(--line)}
.toc li{margin:0}
.toc a{
  display:block;padding:9px 0 9px 16px;font-size:14px;color:var(--text-3);
  border-left:2px solid transparent;margin-left:-1px;line-height:1.5;
  transition:color var(--ease),border-color var(--ease),background var(--ease);
}
.toc a:hover{color:var(--text)}
.toc a.current{color:var(--cyan);border-left-color:var(--cyan);background:linear-gradient(90deg,rgba(47,216,255,.1),transparent);box-shadow:inset 3px 0 12px -6px rgba(47,216,255,.7)}
.toc-note{margin-top:20px;font-size:12.5px;color:var(--text-3);line-height:1.7}

.article-main{max-width:800px;min-width:0}
.article-body{font-size:16px;line-height:1.85;color:#D6E2F3}
.article-body p{margin:0 0 20px}
.article-body h2{
  position:relative;margin:52px 0 18px;padding-left:16px;
  font-size:28px;font-weight:700;line-height:1.45;color:var(--text);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--cyan),var(--violet));
  box-shadow:0 0 14px rgba(47,216,255,.7);
}
.article-body h3{margin:34px 0 14px;font-size:20px;font-weight:600;color:var(--text)}
.article-body h4{margin:26px 0 12px;font-size:17px;font-weight:600;color:var(--text-2)}
.article-body a{color:var(--cyan);border-bottom:1px dashed rgba(47,216,255,.55)}
.article-body a:hover{color:var(--text);border-bottom-color:var(--text)}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px}
.article-body li{margin:9px 0;line-height:1.8}
.article-body li::marker{color:var(--cyan)}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;border-left:3px solid var(--cyan);
  background:rgba(18,30,52,.72);border-radius:0 var(--r-btn) var(--r-btn) 0;color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:26px auto;border:1px solid var(--line)}
.article-body figure{margin:26px 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;margin:26px 0;
  font-size:15px;border:1px solid var(--line);border-radius:var(--r-btn);overflow:hidden;
}
.article-body th{
  background:rgba(47,216,255,.1);text-align:left;padding:13px 16px;
  color:var(--text);font-weight:600;border-bottom:1px solid var(--line);
}
.article-body td{padding:13px 16px;border-top:1px solid var(--line);color:#C6D5EA}
.article-body tbody tr:nth-child(even) td{background:rgba(120,180,255,.05)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:40px 0}
.article-body code{
  background:rgba(47,216,255,.1);color:var(--cyan);padding:2px 7px;border-radius:6px;font-size:14px;
}
.article-empty{
  padding:56px 32px;text-align:center;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line);box-shadow:var(--shadow);
}
.article-empty i{font-size:34px;color:var(--text-3);margin-bottom:16px;display:block}
.article-empty h2{margin:0 0 10px;font-size:22px;font-weight:700;color:var(--text);padding:0}
.article-empty h2::before{display:none}
.article-empty p{color:var(--text-2);margin:0 0 22px}

/* 文末区块 */
.after-block{margin-top:72px}
.sec-head{margin-bottom:24px}
.sec-head .kicker{
  display:inline-block;font-size:12.5px;letter-spacing:2.5px;color:var(--cyan);
  text-transform:uppercase;margin-bottom:10px;font-weight:600;
}
.sec-head h2{margin:0;font-size:26px;font-weight:700;color:var(--text)}
.sec-head p{margin:8px 0 0;color:var(--text-2);font-size:15px}

.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.rel-card{
  display:block;border-radius:var(--r-card);overflow:hidden;position:relative;
  background:var(--surface);border:1px solid var(--line);
  box-shadow:var(--shadow);transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.rel-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.16),transparent);
}
.rel-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 24px 46px -22px rgba(3,8,20,.75),inset 0 1px 0 rgba(255,255,255,.14)}
.rel-thumb{height:132px;overflow:hidden;background:var(--surface-2)}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease)}
.rel-card:hover .rel-thumb img{transform:scale(1.04)}
.rel-body{padding:16px 18px 20px}
.rel-body .tag{
  display:inline-block;font-size:12px;padding:3px 10px;border-radius:var(--r-pill);
  color:var(--cyan);background:rgba(47,216,255,.1);border:1px solid rgba(47,216,255,.28);margin-bottom:10px;
}
.rel-body h3{margin:0 0 8px;font-size:17px;font-weight:600;line-height:1.55;color:var(--text)}
.rel-body p{margin:0;font-size:13.5px;color:var(--text-3);line-height:1.7}

.cta-panel{
  margin-top:64px;padding:38px;border-radius:var(--r-card);position:relative;overflow:hidden;
  background:
    radial-gradient(600px 240px at 0% 0%, rgba(47,216,255,.16), transparent 65%),
    linear-gradient(rgba(120,180,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,180,255,.05) 1px, transparent 1px),
    var(--glass);
  background-size:auto,22px 22px,22px 22px,auto;
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow);
  display:flex;flex-wrap:wrap;gap:26px;align-items:center;justify-content:space-between;
}
.cta-panel h2{margin:0 0 8px;font-size:24px;font-weight:700;color:var(--text)}
.cta-panel p{margin:0;color:var(--text-2);font-size:15px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

.back-line{margin-top:34px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;font-size:14px;color:var(--text-3)}
.back-line a{color:var(--text-2);display:inline-flex;align-items:center;gap:8px}
.back-line a:hover{color:var(--cyan)}

/* 页脚 */
.footer{margin-top:104px;background:var(--bg-deep);border-top:1px solid var(--line);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer p{color:var(--text-3);font-size:14px;line-height:1.8;margin:0 0 16px}
.footer-note{
  font-size:12.5px;color:var(--text-3);padding:12px 14px;border-radius:var(--r-btn);
  background:rgba(18,30,52,.6);border:1px solid var(--line);margin-bottom:18px;line-height:1.7;
}
.footer h4{font-size:14px;font-weight:600;color:var(--text);margin:0 0 16px;letter-spacing:.5px}
.footer-links{list-style:none;margin:0;padding:0}
.footer-links li{margin:0 0 11px}
.footer-links a{font-size:14px;color:var(--text-3)}
.footer-links a:hover{color:var(--cyan)}
.footer-sub{display:flex;gap:10px;flex-wrap:wrap}
.footer-sub input{
  flex:1 1 180px;min-width:0;padding:11px 14px;border-radius:var(--r-btn);
  background:rgba(14,23,41,.9);border:1px solid var(--line);color:var(--text);font-size:14px;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.footer-sub input::placeholder{color:var(--text-3)}
.footer-sub input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(47,216,255,.16)}
.footer-bottom{
  margin-top:52px;border-top:1px solid var(--line);padding:22px 0 26px;
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.to-top{
  display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:var(--r-pill);
  background:rgba(18,30,52,.8);border:1px solid var(--line);color:var(--text-2);
  font-size:13px;cursor:pointer;transition:all var(--ease);
}
.to-top:hover{color:var(--cyan);border-color:rgba(47,216,255,.45);box-shadow:0 8px 22px -12px rgba(47,216,255,.8)}

/* 响应式 */
@media (max-width:1199.98px){
  .article-hero h1{font-size:36px}
  .article-layout{gap:40px;grid-template-columns:200px minmax(0,1fr)}
}
@media (max-width:991.98px){
  .container,.wrap{padding:0 20px}
  .nav-links{
    position:fixed;top:0;right:0;width:284px;height:100vh;
    flex-direction:column;align-items:stretch;gap:6px;
    padding:92px 22px 28px;
    background:rgba(6,11,22,.98);border-left:1px solid var(--line);
    transform:translateX(102%);transition:transform var(--ease);
    z-index:90;margin-left:0;overflow-y:auto;
  }
  .nav-links.open{transform:translateX(0)}
  .nav-links a{padding:12px 14px;font-size:15.5px;border-bottom:1px solid rgba(120,180,255,.08)}
  .nav-links a.active::after{display:none}
  .nav-links a.active{background:rgba(47,216,255,.1);color:var(--cyan)}
  .burger{display:flex}
  .nav-cta{display:none}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;padding-top:40px}
  .toc{display:none}
  .article-main{max-width:none}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .topbar-actions{display:none}
  .article-hero h1{font-size:32px}
}
@media (max-width:767.98px){
  body{font-size:15.5px}
  .article-hero{padding:18px 0 32px}
  .article-hero h1{font-size:28px;line-height:1.4}
  .article-body h2{font-size:22px;margin-top:40px}
  .article-body h3{font-size:18px}
  .article-layout{padding-top:32px}
  .rel-grid{grid-template-columns:minmax(0,1fr)}
  .cta-panel{padding:26px;flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .footer{margin-top:72px;padding-top:48px}
  .footer-grid{grid-template-columns:1fr}
  .article-body table{font-size:14px}
  .article-body th,.article-body td{padding:10px 12px}
  .after-block{margin-top:52px}
}
@media (max-width:519.98px){
  .container,.wrap{padding:0 16px}
  .nav-inner{padding:0 16px;gap:14px}
  .logo-text{font-size:15.5px}
  .logo-sub{letter-spacing:1px}
  .article-hero h1{font-size:25px}
  .meta-bar{flex-direction:column;align-items:flex-start;gap:8px}
  .btn{width:100%}
  .btn-sm{width:auto}
  .breadcrumb-line .cur{max-width:180px}
}

/* roulang page: category1 */
:root{
  --bg:#060B16;
  --bg-deep:#04080F;
  --surface:#0E1729;
  --glass:rgba(18,30,52,.72);
  --txt:#E8F1FF;
  --txt-2:#9FB2CC;
  --txt-3:#6B7C99;
  --line:rgba(120,180,255,.14);
  --cyan:#2FD8FF;
  --violet:#6C5CFF;
  --amber:#FFC857;
  --ok:#3BE0A0;
  --warn:#FFB14E;
  --err:#FF6B7A;
  --r-card:16px;
  --r-btn:12px;
  --r-img:14px;
  --shadow:0 18px 40px -20px rgba(3,8,20,.55);
  --inner:inset 0 1px 0 rgba(255,255,255,.06);
  --wrap:1240px;
  --sect:96px;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  --num:"Inter","SF Pro Display",-apple-system,"PingFang SC",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;padding:0;background:var(--bg);color:var(--txt);
  font-family:var(--font);font-size:16px;line-height:1.85;
  -webkit-font-smoothing:antialiased;
  background-image:
    radial-gradient(720px 420px at 88% -6%,rgba(47,216,255,.08),transparent 62%),
    radial-gradient(560px 380px at -8% 22%,rgba(108,92,255,.08),transparent 62%),
    linear-gradient(rgba(120,180,255,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,180,255,.04) 1px,transparent 1px);
  background-size:auto,auto,24px 24px,24px 24px;
  background-attachment:fixed,fixed,scroll,scroll;
}
a{color:inherit;text-decoration:none;transition:color .22s ease}
a:hover{color:var(--txt)}
img{max-width:100%;display:block;border-radius:var(--r-img)}
button,input{font-family:inherit}
h1,h2,h3,h4{margin:0;letter-spacing:.2px}
p{margin:0}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}
.section{padding:var(--sect) 0}
.sect-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:38px;flex-wrap:wrap}
.sect-head h2{font-size:28px;font-weight:700;line-height:1.4}
.sect-head .sub{color:var(--txt-2);font-size:15px;margin-top:10px;max-width:720px}
.sect-head .head-side{font-size:13px;color:var(--txt-3);letter-spacing:.4px;white-space:nowrap}
.kw{color:var(--cyan)}

/* 顶部信息条 */
.topbar{height:36px;background:#04080F;border-bottom:1px solid var(--line);font-size:12.5px}
.topbar-inner{height:36px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-left{display:flex;align-items:center;gap:10px;min-width:0}
.topbar .dot{width:6px;height:6px;border-radius:50%;background:var(--ok);box-shadow:0 0 10px rgba(59,224,160,.8);flex:none}
.topbar .domain{font-family:var(--num);color:var(--txt);letter-spacing:.6px}
.topbar .tip{color:var(--txt-3);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.topbar-right{display:flex;align-items:center;gap:18px;color:var(--txt-2);flex:none}
.topbar-right a:hover{color:var(--cyan)}

/* 主导航 */
.mainnav{
  position:sticky;top:0;z-index:60;height:68px;
  background:rgba(6,11,22,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);transition:height .24s ease,background .24s ease;
}
.mainnav.shrink{height:60px;background:rgba(4,8,15,.94)}
.nav-inner{max-width:var(--wrap);margin:0 auto;padding:0 24px;height:100%;display:flex;align-items:center;gap:28px}
.logo{display:flex;align-items:center;gap:11px;flex:none}
.logo-mark{
  width:26px;height:26px;border-radius:8px;flex:none;
  background:linear-gradient(140deg,var(--cyan),var(--violet));
  box-shadow:0 0 0 1px rgba(47,216,255,.45),0 0 18px -2px rgba(47,216,255,.65);
  position:relative;
}
.logo-mark::after{content:"";position:absolute;inset:8px;border-radius:3px;background:rgba(6,11,22,.85)}
.logo-text{display:block;font-size:17px;font-weight:800;letter-spacing:.5px;line-height:1.15}
.logo-sub{display:block;font-size:11px;color:var(--txt-3);letter-spacing:1px}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-links a{position:relative;font-size:14.5px;color:var(--txt-2);padding:8px 12px;border-radius:9px}
.nav-links a:hover{color:var(--txt);background:rgba(47,216,255,.06)}
.nav-links a.active{color:var(--txt);font-weight:600}
.nav-links a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--cyan),var(--violet));box-shadow:0 0 10px rgba(47,216,255,.7);
}
.nav-cta{flex:none}
.burger{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(18,30,52,.7);color:var(--txt);font-size:16px;cursor:pointer;flex:none;
}
.burger:hover{border-color:rgba(47,216,255,.5)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;padding:12px 22px;border-radius:var(--r-btn);
  border:1px solid transparent;cursor:pointer;transition:all .24s ease-out;line-height:1.2;
}
.btn-glow{
  background:linear-gradient(135deg,rgba(47,216,255,.95),rgba(108,92,255,.92));
  color:#04101C;box-shadow:0 0 0 1px rgba(47,216,255,.45),0 10px 30px -8px rgba(47,216,255,.45);
}
.btn-glow:hover{filter:brightness(1.08);box-shadow:0 0 0 1px rgba(47,216,255,.7),0 14px 38px -6px rgba(47,216,255,.6);color:#04101C}
.btn-glow:active{transform:translateY(1px)}
.btn-line{background:rgba(18,30,52,.6);border-color:var(--line);color:var(--txt)}
.btn-line:hover{border-color:rgba(47,216,255,.55);background:rgba(47,216,255,.08);color:var(--txt)}
.btn-sm{padding:9px 16px;font-size:13.5px;border-radius:10px}

/* 徽章 */
.chip{
  display:inline-flex;align-items:center;gap:6px;font-size:12.5px;padding:5px 12px;border-radius:999px;
  background:rgba(47,216,255,.1);border:1px solid rgba(47,216,255,.3);color:var(--cyan);letter-spacing:.3px;
}
.chip.violet{background:rgba(108,92,255,.14);border-color:rgba(108,92,255,.4);color:#B7AEFF}
.chip.amber{background:rgba(255,200,87,.12);border-color:rgba(255,200,87,.38);color:var(--amber)}
.chip.mute{background:rgba(120,180,255,.07);border-color:var(--line);color:var(--txt-2)}

/* 分类横幅 */
.banner{position:relative;padding:0;overflow:hidden;border-bottom:1px solid var(--line)}
.banner .bg{
  position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;opacity:.42;
}
.banner .mask{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,11,22,.72) 0%,rgba(6,11,22,.9) 62%,var(--bg) 100%);
}
.banner .inner{position:relative;padding:74px 0 62px}
.crumb{font-size:13px;color:var(--txt-3);margin-bottom:20px;display:flex;gap:9px;align-items:center;flex-wrap:wrap}
.crumb a:hover{color:var(--cyan)}
.crumb .sep{color:rgba(120,180,255,.35)}
.banner h1{font-size:42px;font-weight:800;line-height:1.28;max-width:900px;margin:16px 0 18px}
.banner .lead{font-size:16.5px;color:var(--txt-2);max-width:780px;line-height:1.9}
.banner .chiprow{display:flex;gap:10px;flex-wrap:wrap}
.banner .facts{display:flex;gap:34px;flex-wrap:wrap;margin-top:32px;padding-top:26px;border-top:1px solid var(--line)}
.banner .facts div{font-size:13px;color:var(--txt-3)}
.banner .facts b{display:block;font-family:var(--num);font-size:24px;color:var(--txt);font-weight:700;letter-spacing:.5px;line-height:1.35}

/* 玻璃块 */
.glass{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow),var(--inner);backdrop-filter:blur(12px);
}

/* 说明段位 */
.note-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:40px;align-items:start}
.note-grid h2{font-size:28px;font-weight:700;margin-bottom:18px;line-height:1.42}
.note-grid p{color:var(--txt-2);margin-bottom:16px}
.note-side{padding:26px 26px 22px}
.note-side h3{font-size:17px;font-weight:600;margin-bottom:14px}
.note-side ul{list-style:none;margin:0;padding:0}
.note-side li{position:relative;padding-left:20px;color:var(--txt-2);font-size:14.5px;margin-bottom:12px}
.note-side li::before{
  content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:2px;
  background:linear-gradient(135deg,var(--cyan),var(--violet));box-shadow:0 0 8px rgba(47,216,255,.6);
}

/* 数据卡 */
.fact-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.fact{
  background:var(--surface);border:1px solid var(--line);border-top:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-card);padding:24px 22px;box-shadow:var(--shadow),var(--inner);
  transition:transform .24s ease-out,border-color .24s ease-out;
}
.fact:hover{transform:translateY(-4px);border-color:rgba(47,216,255,.34)}
.fact .num{font-family:var(--num);font-size:30px;font-weight:700;color:var(--cyan);letter-spacing:.5px;line-height:1.2}
.fact h3{font-size:16px;font-weight:600;margin:12px 0 8px}
.fact p{font-size:14px;color:var(--txt-2);line-height:1.75}

/* 编号条目列表 */
.numlist{margin-top:8px}
.numrow{
  display:grid;grid-template-columns:64px 1fr auto;gap:22px;align-items:center;
  padding:24px 8px;border-bottom:1px solid var(--line);transition:background .24s ease-out;
}
.numrow:first-child{border-top:1px solid var(--line)}
.numrow:hover{background:rgba(47,216,255,.045)}
.numrow .idx{font-family:var(--num);font-size:20px;font-weight:700;color:var(--cyan);letter-spacing:1px;opacity:.85}
.numrow h3{font-size:17.5px;font-weight:600;margin-bottom:7px;line-height:1.5}
.numrow p{font-size:14.5px;color:var(--txt-2);line-height:1.7;max-width:720px}
.numrow .tail{display:flex;align-items:center;gap:14px;flex:none}
.numrow .arrow{color:var(--txt-3);transition:transform .24s ease-out,color .24s ease-out}
.numrow:hover .arrow{transform:translateX(3px);color:var(--cyan)}

/* 流程时间轴 */
.timeline{position:relative;padding-left:34px;margin-top:6px}
.timeline::before{
  content:"";position:absolute;left:9px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,var(--cyan),rgba(108,92,255,.35),transparent);
}
.tstep{position:relative;padding:0 0 30px 0}
.tstep:last-child{padding-bottom:0}
.tstep::before{
  content:"";position:absolute;left:-32px;top:8px;width:12px;height:12px;border-radius:50%;
  background:var(--bg);border:2px solid var(--cyan);box-shadow:0 0 12px rgba(47,216,255,.7);
}
.tstep h3{font-size:17px;font-weight:600;margin-bottom:8px}
.tstep p{color:var(--txt-2);font-size:14.5px;max-width:760px}
.tstep .tag{margin-top:10px;display:inline-flex}

/* 交叉导航 */
.cross{padding:30px 28px;display:flex;align-items:center;gap:20px;flex-wrap:wrap;justify-content:space-between}
.cross .cross-t{font-size:16px;font-weight:600}
.cross .cross-l{display:flex;gap:10px;flex-wrap:wrap}
.cross-link{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;padding:10px 16px;border-radius:10px;
  border:1px solid var(--line);background:rgba(14,23,41,.75);color:var(--txt-2);
}
.cross-link:hover{border-color:rgba(47,216,255,.45);color:var(--txt);background:rgba(47,216,255,.08)}

/* 图卡 */
.shot-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.shot{
  background:var(--surface);border:1px solid var(--line);border-top:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow),var(--inner);
  transition:transform .24s ease-out,border-color .24s ease-out;
}
.shot:hover{transform:translateY(-4px);border-color:rgba(47,216,255,.32)}
.shot .pic{position:relative;aspect-ratio:16/9;overflow:hidden}
.shot .pic img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .24s ease-out}
.shot:hover .pic img{transform:scale(1.04)}
.shot .pic .tag{position:absolute;left:12px;bottom:12px}
.shot .body{padding:20px 20px 22px}
.shot h3{font-size:17px;font-weight:600;margin-bottom:9px;line-height:1.5}
.shot p{font-size:14px;color:var(--txt-2);line-height:1.75}
.shot .meta{margin-top:14px;font-size:13px;color:var(--txt-3);display:flex;gap:14px;align-items:center}

/* FAQ */
.faq-list{border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:var(--glass);box-shadow:var(--shadow),var(--inner)}
.faq-item+.faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;text-align:left;background:transparent;border:0;color:var(--txt);
  font-size:18px;font-weight:600;padding:22px 24px;display:flex;align-items:center;justify-content:space-between;gap:18px;cursor:pointer;
  transition:background .2s ease;
}
.faq-q:hover{background:rgba(47,216,255,.05)}
.faq-q i{color:var(--cyan);font-size:14px;transition:transform .26s ease}
.faq-q[aria-expanded="true"] i{transform:rotate(180deg)}
.faq-a{padding:0 24px 24px;font-size:15px;color:var(--txt-2);line-height:1.85;max-width:880px}

/* CTA */
.cta{
  position:relative;overflow:hidden;padding:44px 44px;border-radius:20px;
  background:linear-gradient(120deg,rgba(18,30,52,.9),rgba(14,23,41,.72));
  border:1px solid var(--line);box-shadow:var(--shadow),var(--inner);
  display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;
}
.cta::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(520px 220px at 12% 0%,rgba(47,216,255,.14),transparent 65%);
}
.cta h2{font-size:26px;font-weight:700;margin-bottom:10px;position:relative}
.cta p{color:var(--txt-2);font-size:15px;position:relative;max-width:620px}
.cta .acts{display:flex;gap:14px;flex-wrap:wrap;position:relative}

/* 页脚 */
.footer{margin-top:20px;background:#04080F;border-top:1px solid var(--line);padding:64px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer p{color:var(--txt-2);font-size:14px;line-height:1.8}
.footer h4{font-size:15px;font-weight:600;margin-bottom:16px;letter-spacing:.5px}
.footer-links{list-style:none;margin:0;padding:0}
.footer-links li{margin-bottom:11px}
.footer-links a{color:var(--txt-2);font-size:14px}
.footer-links a:hover{color:var(--cyan)}
.footer-note{
  font-size:12.5px;color:var(--txt-3);border-left:2px solid rgba(47,216,255,.5);
  padding-left:12px;margin:16px 0 18px;line-height:1.7;
}
.footer-sub{display:flex;gap:10px;flex-wrap:wrap}
.footer-sub input{
  flex:1 1 180px;min-width:0;background:rgba(14,23,41,.9);border:1px solid var(--line);
  border-radius:10px;color:var(--txt);padding:10px 14px;font-size:14px;transition:border-color .22s,box-shadow .22s;
}
.footer-sub input::placeholder{color:var(--txt-3)}
.footer-sub input:focus{outline:none;border-color:rgba(47,216,255,.6);box-shadow:0 0 0 3px rgba(47,216,255,.16)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(120,180,255,.1);
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:var(--txt-3);
}
.to-top{
  background:rgba(18,30,52,.8);border:1px solid var(--line);color:var(--txt-2);
  font-size:13px;padding:8px 14px;border-radius:10px;cursor:pointer;transition:all .22s ease;
}
.to-top:hover{border-color:rgba(47,216,255,.5);color:var(--txt)}

/* 抽屉 */
.drawer{
  position:fixed;top:0;right:0;width:290px;max-width:86vw;height:100%;z-index:90;
  background:rgba(6,11,22,.98);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .3s ease-out;padding:24px 22px;overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer h4{font-size:13px;color:var(--txt-3);letter-spacing:1px;margin:20px 0 12px}
.drawer a{display:block;padding:11px 12px;border-radius:10px;color:var(--txt-2);font-size:15px}
.drawer a:hover,.drawer a.active{background:rgba(47,216,255,.08);color:var(--txt)}
.drawer .close{background:transparent;border:1px solid var(--line);color:var(--txt);width:40px;height:40px;border-radius:10px;cursor:pointer;float:right}
.backdrop{position:fixed;inset:0;background:rgba(2,5,10,.6);z-index:80;opacity:0;visibility:hidden;transition:opacity .3s}
.backdrop.open{opacity:1;visibility:visible}

@media (max-width:1199px){
  :root{--wrap:1080px;--sect:84px}
  .banner h1{font-size:38px}
  .fact-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:991px){
  .nav-links{display:none}
  .nav-cta{display:none}
  .burger{display:inline-flex;align-items:center;justify-content:center;margin-left:auto}
  :root{--sect:72px}
  .banner .inner{padding:56px 0 48px}
  .banner h1{font-size:32px}
  .note-grid{grid-template-columns:1fr;gap:26px}
  .shot-grid{grid-template-columns:1fr 1fr}
  .numrow{grid-template-columns:48px 1fr;gap:16px}
  .numrow .tail{grid-column:2;justify-content:flex-start;margin-top:4px}
  .cta{padding:34px 26px}
}
@media (max-width:767px){
  :root{--sect:60px;--wrap:100%}
  body{font-size:15.5px}
  .wrap{padding:0 16px}
  .topbar-right{display:none}
  .banner h1{font-size:28px}
  .banner .lead{font-size:15px}
  .sect-head h2{font-size:23px}
  .fact-grid{grid-template-columns:1fr}
  .shot-grid{grid-template-columns:1fr}
  .cta h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category3 */
:root{
  --bg:#060B16;
  --surface:#0E1729;
  --card:rgba(18,30,52,.72);
  --line:rgba(120,180,255,.14);
  --line-strong:rgba(120,180,255,.26);
  --primary:#2FD8FF;
  --violet:#6C5CFF;
  --amber:#FFC857;
  --text:#E8F1FF;
  --text-2:#9FB2CC;
  --text-3:#6B7C99;
  --ok:#3BE0A0;
  --warn:#FFB14E;
  --err:#FF6B7A;
  --r-card:16px;
  --r-btn:12px;
  --r-img:14px;
  --r-pill:999px;
  --shadow:0 18px 40px -20px rgba(3,8,20,.55);
  --inner:inset 0 1px 0 rgba(255,255,255,.06);
  --glow:0 0 0 1px rgba(47,216,255,.45), 0 10px 30px -8px rgba(47,216,255,.45);
  --ease:240ms ease-out;
  --gap-section:96px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background-color:var(--bg);
  background-image:
    radial-gradient(900px 520px at 12% -6%, rgba(47,216,255,.08), transparent 62%),
    radial-gradient(760px 460px at 108% 8%, rgba(108,92,255,.09), transparent 60%),
    linear-gradient(rgba(120,180,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,180,255,.04) 1px, transparent 1px);
  background-size:auto,auto,24px 24px,24px 24px;
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--text-2);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--text)}
h1,h2,h3,h4{margin:0 0 14px;line-height:1.3;font-weight:700;letter-spacing:.2px}
p{margin:0 0 16px}
button,input{font:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:var(--gap-section) 0}
.section-sm{padding:64px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--primary);letter-spacing:2px;
  text-transform:uppercase;margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--primary);border-radius:2px;box-shadow:0 0 10px rgba(47,216,255,.8)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.section-head h2{font-size:28px;font-weight:700;margin:0}
.section-head p{margin:8px 0 0;color:var(--text-2);max-width:760px;font-size:15px}
.more-link{font-size:14px;color:var(--text-2);border-bottom:1px dashed var(--line-strong);padding-bottom:2px}
.more-link:hover{color:var(--primary);border-bottom-color:var(--primary)}

/* ---------- 信息条 ---------- */
.topbar{
  height:36px;background:rgba(3,7,15,.92);
  border-bottom:1px solid var(--line);
  font-size:12.5px;color:var(--text-3);
  display:flex;align-items:center;
}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-left{display:flex;align-items:center;gap:10px;min-width:0}
.topbar-left .dot{width:6px;height:6px;border-radius:50%;background:var(--ok);box-shadow:0 0 10px rgba(59,224,160,.9);flex:none}
.topbar-left .host{color:var(--text-2);letter-spacing:.6px}
.topbar-left .tip{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-right{display:flex;align-items:center;gap:18px}
.topbar-right button{background:none;border:0;color:var(--text-3);cursor:pointer;padding:0;font-size:12.5px;transition:color var(--ease)}
.topbar-right button:hover{color:var(--primary)}

/* ---------- 导航 ---------- */
.mainnav{
  position:sticky;top:0;z-index:1040;height:68px;
  background:rgba(6,11,22,.78);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:height var(--ease), background var(--ease);
}
.mainnav.shrink{height:60px;background:rgba(6,11,22,.94)}
.nav-inner{
  max-width:1240px;margin:0 auto;padding:0 24px;height:100%;
  display:flex;align-items:center;gap:28px;
}
.logo{display:flex;align-items:center;gap:11px;flex:none;color:var(--text)}
.logo-mark{
  width:30px;height:30px;border-radius:9px;flex:none;position:relative;
  background:linear-gradient(135deg,var(--primary),var(--violet));
  box-shadow:0 0 0 1px rgba(47,216,255,.45), 0 8px 20px -8px rgba(47,216,255,.65);
}
.logo-mark::after{content:"";position:absolute;inset:8px;border-radius:4px;background:rgba(6,11,22,.78)}
.logo-text{display:block;font-size:17px;font-weight:800;letter-spacing:.4px;line-height:1.15}
.logo-sub{display:block;font-size:11px;color:var(--text-3);letter-spacing:1.6px;line-height:1.2}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-links a{
  position:relative;padding:8px 12px;font-size:14.5px;color:var(--text-2);border-radius:10px;
  transition:color var(--ease),background var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--violet));
  transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
  box-shadow:0 0 12px rgba(47,216,255,.85);
}
.nav-links a:hover{color:var(--text);background:rgba(47,216,255,.06)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--text);background:rgba(47,216,255,.08)}
.nav-links a.active::after{transform:scaleX(1)}
.nav-cta{flex:none;margin-left:6px;white-space:nowrap}
.burger{
  display:none;width:44px;height:44px;border-radius:12px;margin-left:auto;
  background:rgba(18,30,52,.7);border:1px solid var(--line);color:var(--text);
  cursor:pointer;transition:background var(--ease)
}
.burger:hover{background:rgba(47,216,255,.12)}
.drawer{
  position:fixed;top:0;right:0;width:min(320px,86vw);height:100%;z-index:1060;
  background:rgba(9,16,30,.98);border-left:1px solid var(--line-strong);
  transform:translateX(102%);transition:transform 280ms ease-out;
  padding:22px;overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-close{background:none;border:0;color:var(--text-2);font-size:20px;cursor:pointer;padding:4px;float:right}
.drawer-links{display:flex;flex-direction:column;gap:4px;margin-top:26px;clear:both}
.drawer-links a{padding:12px 12px;border-radius:12px;font-size:15px;border:1px solid transparent}
.drawer-links a:hover,.drawer-links a.active{background:rgba(47,216,255,.09);border-color:var(--line);color:var(--text)}
.drawer-info{margin-top:24px;padding-top:18px;border-top:1px solid var(--line);font-size:12.5px;color:var(--text-3)}
.mask{position:fixed;inset:0;background:rgba(3,7,15,.6);z-index:1055;opacity:0;pointer-events:none;transition:opacity var(--ease)}
.mask.show{opacity:1;pointer-events:auto}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  border-radius:var(--r-btn);padding:12px 22px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all var(--ease);text-align:center;
}
.btn-sm{padding:9px 16px;font-size:13.5px}
.btn-glow{
  background:linear-gradient(135deg,rgba(47,216,255,.22),rgba(108,92,255,.24));
  border-color:rgba(47,216,255,.55);color:var(--text);box-shadow:var(--glow);
}
.btn-glow:hover{
  color:#fff;filter:brightness(1.12);
  box-shadow:0 0 0 1px rgba(47,216,255,.7), 0 14px 36px -8px rgba(47,216,255,.65);
}
.btn-glow:active{transform:translateY(1px)}
.btn-line{background:rgba(18,30,52,.5);border-color:var(--line-strong);color:var(--text-2)}
.btn-line:hover{color:var(--text);border-color:rgba(47,216,255,.45);background:rgba(47,216,255,.07)}
.btn-line:active{transform:translateY(1px)}

/* ---------- 分类封面 ---------- */
.cat-hero{padding:34px 0 0}
.crumbs{font-size:13px;color:var(--text-3);margin-bottom:18px}
.crumbs a{color:var(--text-3)}
.crumbs a:hover{color:var(--primary)}
.crumbs span.sep{margin:0 8px;opacity:.6}
.cat-banner{
  position:relative;border-radius:20px;overflow:hidden;
  border:1px solid rgba(255,255,255,.09);
  box-shadow:var(--shadow),var(--inner);
  min-height:240px;display:flex;align-items:flex-end;
}
.cat-banner img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.cat-banner::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg, rgba(6,11,22,.94) 8%, rgba(6,11,22,.72) 46%, rgba(6,11,22,.35) 100%);
}
.cat-banner-inner{position:relative;z-index:2;padding:36px 40px;max-width:780px}
.pill-row{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:16px}
.pill{
  display:inline-flex;align-items:center;gap:6px;font-size:12.5px;padding:5px 12px;
  border-radius:var(--r-pill);border:1px solid var(--line-strong);
  background:rgba(18,30,52,.7);color:var(--text-2);
}
.pill.primary{border-color:rgba(47,216,255,.5);color:var(--primary);background:rgba(47,216,255,.1)}
.pill.amber{border-color:rgba(255,200,87,.45);color:var(--amber);background:rgba(255,200,87,.09)}
.cat-banner h1{font-size:40px;font-weight:800;margin:0 0 12px}
.cat-banner h1 em{font-style:normal;color:var(--primary)}
.cat-banner p{margin:0;color:var(--text-2);font-size:15.5px;max-width:640px}

/* ---------- 说明段位 ---------- */
.intro-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:32px;align-items:start}
.intro-text h2{font-size:28px}
.intro-text p{color:var(--text-2);font-size:15.5px}
.intro-text p:first-of-type{color:var(--text)}
.fact-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--shadow),var(--inner);
}
.fact-card h3{font-size:17px;margin-bottom:16px}
.fact-list{list-style:none;padding:0;margin:0}
.fact-list li{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--line);font-size:14.5px;color:var(--text-2)}
.fact-list li:last-child{border-bottom:0;padding-bottom:0}
.fact-list i{color:var(--primary);margin-top:5px;font-size:13px}
.fact-list b{color:var(--text);font-weight:600}

/* ---------- 场景卡 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.scene-card{
  position:relative;background:var(--surface);border-radius:var(--r-card);
  border:1px solid var(--line);padding:24px 22px;box-shadow:var(--shadow);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.scene-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;border-radius:var(--r-card) var(--r-card) 0 0;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.06),transparent);
  transition:background var(--ease);
}
.scene-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow),0 0 0 1px rgba(47,216,255,.18)}
.scene-card:hover::before{background:linear-gradient(90deg,transparent,rgba(255,255,255,.14),transparent)}
.scene-icon{
  width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(47,216,255,.1);border:1px solid rgba(47,216,255,.28);color:var(--primary);margin-bottom:16px;
}
.scene-card h3{font-size:17px;margin-bottom:8px}
.scene-card p{font-size:14px;color:var(--text-2);margin:0;line-height:1.75}

/* ---------- 处理流程 ---------- */
.flow{position:relative;padding-left:0;display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.flow-step{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 20px;box-shadow:var(--inner);transition:border-color var(--ease),transform var(--ease);
}
.flow-step:hover{border-color:rgba(47,216,255,.4);transform:translateY(-3px)}
.flow-num{
  font-family:Inter,system-ui,sans-serif;font-size:13px;letter-spacing:1.6px;
  color:var(--primary);font-weight:700;margin-bottom:10px;
}
.flow-step h3{font-size:16px;margin-bottom:8px}
.flow-step p{font-size:13.5px;color:var(--text-2);margin:0;line-height:1.75}

/* ---------- 编号条目列表 ---------- */
.entry-list{border-top:1px solid var(--line)}
.entry-row{
  display:grid;grid-template-columns:64px 1fr auto;gap:20px;align-items:center;
  padding:24px 12px;border-bottom:1px solid var(--line);
  transition:background var(--ease),padding var(--ease);
}
.entry-row:hover{background:rgba(47,216,255,.05);padding-left:20px}
.entry-num{
  font-family:Inter,system-ui,sans-serif;font-size:20px;font-weight:700;color:var(--primary);
  letter-spacing:1px;opacity:.9;
}
.entry-main h3{font-size:18px;margin:0 0 6px;font-weight:600}
.entry-main p{margin:0;font-size:14.5px;color:var(--text-2);max-width:820px}
.entry-side{display:flex;align-items:center;gap:14px;white-space:nowrap}
.tag{
  font-size:12.5px;padding:4px 11px;border-radius:var(--r-pill);
  border:1px solid var(--line-strong);color:var(--text-2);background:rgba(18,30,52,.6);
}
.tag.ok{color:var(--ok);border-color:rgba(59,224,160,.4);background:rgba(59,224,160,.08)}
.tag.warn{color:var(--warn);border-color:rgba(255,177,78,.4);background:rgba(255,177,78,.08)}
.entry-arrow{color:var(--text-3);transition:transform var(--ease),color var(--ease)}
.entry-row:hover .entry-arrow{color:var(--primary);transform:translateX(3px)}

/* ---------- 交叉导航 ---------- */
.cross-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.cross-card{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--shadow);transition:transform var(--ease),border-color var(--ease);
}
.cross-card:hover{transform:translateY(-4px);border-color:rgba(47,216,255,.4);color:var(--text)}
.cross-card .k{font-size:12.5px;color:var(--text-3);letter-spacing:1.4px;margin-bottom:10px}
.cross-card h3{font-size:18px;margin-bottom:8px;color:var(--text)}
.cross-card p{font-size:14px;color:var(--text-2);margin:0 0 16px}
.cross-card .go{font-size:13.5px;color:var(--primary)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:920px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;background:none;border:0;color:var(--text);text-align:left;
  padding:22px 44px 22px 0;font-size:18px;font-weight:600;cursor:pointer;position:relative;
  transition:color var(--ease);
}
.faq-q:hover{color:var(--primary)}
.faq-q i{
  position:absolute;right:6px;top:50%;transform:translateY(-50%);color:var(--primary);
  font-size:14px;transition:transform var(--ease);
}
.faq-q[aria-expanded="true"] i{transform:translateY(-50%) rotate(180deg)}
.faq-a{padding:0 40px 22px 0;font-size:15px;color:var(--text-2);line-height:1.8;display:none}
.faq-a.open{display:block}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:20px;border:1px solid var(--line-strong);
  background:linear-gradient(120deg,rgba(18,30,52,.9),rgba(12,20,38,.92));
  box-shadow:var(--shadow),var(--inner);
  padding:44px 40px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(560px 280px at 6% 110%, rgba(47,216,255,.16), transparent 65%),
    linear-gradient(rgba(120,180,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,180,255,.05) 1px, transparent 1px);
  background-size:auto,24px 24px,24px 24px;
  pointer-events:none;
}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{font-size:26px;margin-bottom:10px}
.cta-band p{margin:0;color:var(--text-2);font-size:15px;max-width:620px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.footer{margin-top:20px;background:rgba(4,8,17,.94);border-top:1px solid var(--line);padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.footer h4{font-size:15px;margin:0 0 16px;color:var(--text)}
.footer p{color:var(--text-2);font-size:14px}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-note{
  font-size:12.5px;color:var(--text-3);border-left:2px solid rgba(47,216,255,.5);
  padding:8px 0 8px 12px;margin:14px 0;line-height:1.7;
}
.footer-sub{display:flex;gap:10px;margin-top:16px;flex-wrap:wrap}
.footer-sub input{
  flex:1;min-width:170px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-btn);padding:10px 13px;color:var(--text);font-size:14px;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.footer-sub input::placeholder{color:var(--text-3)}
.footer-sub input:focus{outline:none;border-color:rgba(47,216,255,.6);box-shadow:0 0 0 3px rgba(47,216,255,.14)}
.footer-links{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:var(--text-2)}
.footer-links a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:48px;border-top:1px solid var(--line);
  padding:20px 0 28px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:13px;color:var(--text-3);
}
.to-top{
  background:rgba(18,30,52,.8);border:1px solid var(--line);color:var(--text-2);
  border-radius:var(--r-pill);padding:7px 15px;font-size:13px;cursor:pointer;
  display:inline-flex;align-items:center;gap:7px;transition:all var(--ease);
}
.to-top:hover{color:var(--primary);border-color:rgba(47,216,255,.45)}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:992px){
  :root{--gap-section:72px}
  .nav-links,.nav-cta{display:none}
  .burger{display:inline-flex;align-items:center;justify-content:center}
  .mainnav,.mainnav.shrink{height:62px}
  .intro-grid{grid-template-columns:1fr}
  .cross-grid{grid-template-columns:1fr}
  .cat-banner h1{font-size:32px}
  .cat-banner-inner{padding:28px 26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  :root{--gap-section:60px}
  .wrap{padding:0 16px}
  .section{padding:60px 0}
  .cat-banner h1{font-size:28px}
  .cat-banner{min-height:210px}
  .section-head h2{font-size:23px}
  .entry-row{grid-template-columns:44px 1fr;gap:14px;padding:20px 6px}
  .entry-side{grid-column:1 / -1;justify-content:flex-start;flex-wrap:wrap}
  .entry-row:hover{padding-left:10px}
  .scene-grid,.flow{grid-template-columns:1fr}
  .cta-band{padding:30px 22px}
  .topbar-right{display:none}
  .topbar-left .tip{display:none}
}
@media (max-width:520px){
  body{font-size:15px}
  .footer-grid{grid-template-columns:1fr}
  .cat-banner h1{font-size:25px}
  .cta-actions .btn{width:100%}
}

/* roulang page: category2 */
:root{
  --bg:#060B16;
  --bg-deep:#04080F;
  --surface:#0E1729;
  --surface-2:#121E34;
  --glass:rgba(18,30,52,.72);
  --text:#E8F1FF;
  --text-2:#9FB2CC;
  --text-3:#6B7C99;
  --line:rgba(120,180,255,.14);
  --line-2:rgba(120,180,255,.26);
  --cyan:#2FD8FF;
  --violet:#6C5CFF;
  --amber:#FFC857;
  --ok:#3BE0A0;
  --warn:#FFB14E;
  --err:#FF6B7A;
  --r-card:16px;
  --r-btn:12px;
  --r-pill:999px;
  --r-img:14px;
  --shadow:0 18px 40px -20px rgba(3,8,20,.55);
  --shadow-in:inset 0 1px 0 rgba(255,255,255,.06);
  --shadow-glow:0 0 0 1px rgba(47,216,255,.45), 0 10px 30px -8px rgba(47,216,255,.45);
  --wrap:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Inter",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    radial-gradient(900px 460px at 78% -6%, rgba(47,216,255,.10), transparent 62%),
    radial-gradient(700px 420px at 100% 42%, rgba(108,92,255,.09), transparent 66%),
    repeating-linear-gradient(0deg, rgba(120,180,255,.045) 0 1px, transparent 1px 24px),
    repeating-linear-gradient(90deg, rgba(120,180,255,.045) 0 1px, transparent 1px 24px);
}
img{max-width:100%;display:block}
a{color:var(--cyan);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--text)}
button,input{font-family:inherit}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px;position:relative;z-index:1}
.mainnav,.topbar,.footer,main{position:relative;z-index:1}

/* 顶部信息条 */
.topbar{height:36px;background:#03060D;border-bottom:1px solid var(--line);font-size:12.5px}
.topbar-inner{height:36px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.topbar-left{display:flex;align-items:center;gap:12px;min-width:0}
.topbar-dot{width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px rgba(59,224,160,.14);flex:0 0 auto}
.topbar-domain{color:var(--text-2);font-weight:700;letter-spacing:.04em}
.topbar-tip{color:var(--text-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-right{display:flex;align-items:center;gap:18px;flex:0 0 auto}
.topbar-right a{color:var(--text-3);font-size:12.5px}
.topbar-right a:hover{color:var(--cyan)}

/* 主导航 */
.mainnav{
  position:sticky;top:0;z-index:1030;
  background:rgba(6,11,22,.84);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:background .25s var(--ease),box-shadow .25s var(--ease);
}
.mainnav.shrink{background:rgba(4,8,15,.94);box-shadow:0 14px 34px -24px rgba(0,0,0,.9)}
.nav-inner{max-width:var(--wrap);margin:0 auto;padding:0 24px;height:68px;display:flex;align-items:center;gap:22px;transition:height .25s var(--ease)}
.mainnav.shrink .nav-inner{height:60px}
.logo{display:flex;align-items:center;gap:11px;flex:0 0 auto;color:var(--text)}
.logo:hover{color:var(--text)}
.logo-mark{
  width:28px;height:28px;border-radius:9px;flex:0 0 auto;position:relative;
  background:linear-gradient(135deg,var(--cyan),var(--violet));
  box-shadow:0 0 0 1px rgba(47,216,255,.45),0 8px 22px -8px rgba(47,216,255,.65);
}
.logo-mark::after{content:"";position:absolute;inset:8px;border-radius:3px;background:rgba(6,11,22,.78)}
.logo-text{display:block;font-size:17px;font-weight:800;line-height:1.25;letter-spacing:.01em}
.logo-sub{display:block;font-size:11px;color:var(--text-3);letter-spacing:.14em;line-height:1.4}
.nav-links{display:flex;align-items:center;gap:22px;flex:1 1 auto;justify-content:center}
.nav-links a{color:var(--text-2);font-size:14.5px;padding:6px 0;position:relative;white-space:nowrap}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--cyan),var(--violet));
  transform:scaleX(0);transform-origin:left;transition:transform .26s var(--ease);
}
.nav-links a:hover{color:var(--text)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--text);font-weight:600}
.nav-links a.active::after{transform:scaleX(1)}
.nav-cta{flex:0 0 auto}
.burger{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  background:rgba(18,30,52,.7);border:1px solid var(--line-2);border-radius:12px;
  color:var(--text);font-size:16px;cursor:pointer;
}
.burger:hover{border-color:var(--cyan);color:var(--cyan)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);border:1px solid transparent;
  font-size:14.5px;font-weight:600;padding:11px 20px;line-height:1.4;
  cursor:pointer;transition:all .22s var(--ease);text-decoration:none;
}
.btn-sm{padding:8px 15px;font-size:13.5px}
.btn-glow{
  background:linear-gradient(135deg,var(--cyan),var(--violet));
  color:#04101C;box-shadow:var(--shadow-glow);
}
.btn-glow:hover{color:#04101C;filter:brightness(1.08);box-shadow:0 0 0 1px rgba(47,216,255,.6),0 14px 36px -8px rgba(47,216,255,.6);transform:translateY(-1px)}
.btn-glow:active{transform:translateY(1px)}
.btn-ghost{background:rgba(18,30,52,.62);border-color:var(--line-2);color:var(--text)}
.btn-ghost:hover{color:var(--text);border-color:var(--cyan);background:rgba(24,40,68,.8);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,6,13,.66);backdrop-filter:blur(2px);
  opacity:0;visibility:hidden;transition:opacity .28s var(--ease),visibility .28s;z-index:1050;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);z-index:1060;
  background:#0A1222;border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .32s var(--ease);
  padding:22px;overflow-y:auto;
}
.drawer.open{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-close{width:38px;height:38px;border-radius:10px;background:rgba(18,30,52,.7);border:1px solid var(--line-2);color:var(--text);cursor:pointer}
.drawer-close:hover{border-color:var(--cyan);color:var(--cyan)}
.drawer h5{font-size:13px;color:var(--text-3);letter-spacing:.14em;margin:22px 0 10px;font-weight:600}
.drawer-list{display:grid;gap:4px}
.drawer-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 12px;border-radius:12px;color:var(--text-2);font-size:15px;
  border:1px solid transparent;
}
.drawer-list a:hover,.drawer-list a.active{background:rgba(18,30,52,.72);border-color:var(--line);color:var(--text)}
.drawer-note{margin-top:22px;font-size:13px;color:var(--text-3);line-height:1.8;border-left:2px solid var(--cyan);padding-left:10px}

/* 主体 */
main{display:block}
.section{padding:96px 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.section-head h2{font-size:28px;font-weight:700;margin:0;letter-spacing:.01em}
.section-head p{margin:6px 0 0;color:var(--text-2);font-size:15px;max-width:760px}
.section-head .side-link{font-size:13.5px;color:var(--text-3)}
.section-head .side-link:hover{color:var(--cyan)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;color:var(--cyan);
  letter-spacing:.16em;font-weight:600;margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--cyan),transparent)}

/* 面包屑 */
.crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3);padding:26px 0 16px;flex-wrap:wrap}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--cyan)}
.crumb span.sep{color:var(--text-3);opacity:.6}

/* 分类封面 */
.cat-banner{position:relative;height:240px;border-radius:20px;overflow:hidden;border:1px solid var(--line-2);box-shadow:var(--shadow),var(--shadow-in)}
.cat-banner img{width:100%;height:100%;object-fit:cover;opacity:.6;transform:scale(1.02)}
.cat-banner-mask{
  position:absolute;inset:0;
  background:linear-gradient(96deg,rgba(6,11,22,.94) 6%,rgba(6,11,22,.66) 48%,rgba(6,11,22,.28) 100%);
}
.cat-banner-text{position:absolute;left:40px;right:40px;bottom:34px;max-width:720px}
.cat-banner-text .pill{
  display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:600;
  padding:5px 13px;border-radius:var(--r-pill);color:var(--cyan);
  background:rgba(47,216,255,.10);border:1px solid rgba(47,216,255,.34);
}
.cat-banner-text h1{font-size:40px;font-weight:800;line-height:1.28;margin:14px 0 10px;letter-spacing:.01em}
.cat-banner-text p{margin:0;color:var(--text-2);font-size:15.5px;max-width:640px}
.cat-kw{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.cat-kw span{
  font-size:12.5px;padding:4px 11px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-2);
}
.cat-kw span.amber{color:var(--amber);border-color:rgba(255,200,87,.34);background:rgba(255,200,87,.08)}
.cat-kw span.ok{color:var(--ok);border-color:rgba(59,224,160,.32);background:rgba(59,224,160,.08)}

/* 导语 */
.lead{margin-top:30px;max-width:800px;color:var(--text-2);font-size:16px}
.lead strong{color:var(--text);font-weight:600}

/* 指标条 */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;margin-top:34px}
.metric{background:var(--surface);padding:22px 24px;box-shadow:var(--shadow-in)}
.metric .num{font-size:26px;font-weight:800;color:var(--cyan);letter-spacing:.02em;line-height:1.3}
.metric .lab{font-size:13px;color:var(--text-3);margin-top:4px}
.metric .desc{font-size:13.5px;color:var(--text-2);margin-top:8px;line-height:1.7}

/* 场景卡 */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.scene-card{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);padding:26px 26px 24px;box-shadow:var(--shadow),var(--shadow-in);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
  overflow:hidden;
}
.scene-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.22),transparent);
  opacity:.6;transition:opacity .24s var(--ease);
}
.scene-card:hover{transform:translateY(-4px);border-color:var(--line-2)}
.scene-card:hover::before{opacity:1}
.scene-card h3{font-size:18px;font-weight:600;margin:0 0 10px}
.scene-card p{margin:0;color:var(--text-2);font-size:14.5px;line-height:1.8}
.scene-tag{
  display:inline-block;font-size:12px;color:var(--text-3);border:1px solid var(--line);
  border-radius:var(--r-pill);padding:3px 10px;margin-bottom:14px;
}

/* 编号时间轴条目列表 */
.tl{margin-top:8px}
.tl-item{
  display:grid;grid-template-columns:92px 1fr 190px;gap:22px;align-items:start;
  padding:24px 12px;border-top:1px solid var(--line);
  transition:background .24s var(--ease),padding-left .24s var(--ease);
}
.tl-item:last-child{border-bottom:1px solid var(--line)}
.tl-item:hover{background:rgba(18,30,52,.58);padding-left:22px}
.tl-no{font-family:"Inter",-apple-system,Arial,sans-serif;font-size:24px;font-weight:800;color:var(--cyan);line-height:1.2;letter-spacing:.03em}
.tl-no small{display:block;font-size:12px;font-weight:500;color:var(--text-3);letter-spacing:.06em;margin-top:4px;font-family:inherit}
.tl-body h3{font-size:19px;font-weight:600;margin:0 0 8px}
.tl-body p{margin:0;color:var(--text-2);font-size:14.5px;line-height:1.8;max-width:720px}
.tl-side{display:flex;flex-direction:column;align-items:flex-end;gap:12px;text-align:right}
.tl-tags{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}
.tag{
  font-size:12px;padding:4px 10px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-2);white-space:nowrap;
}
.tag.ok{color:var(--ok);border-color:rgba(59,224,160,.3);background:rgba(59,224,160,.08)}
.tag.amber{color:var(--amber);border-color:rgba(255,200,87,.32);background:rgba(255,200,87,.08)}
.tag.violet{color:#B9B1FF;border-color:rgba(108,92,255,.36);background:rgba(108,92,255,.12)}
.tl-arrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:var(--text-3);
  transition:transform .24s var(--ease),color .24s var(--ease);
}
.tl-item:hover .tl-arrow{color:var(--cyan);transform:translateX(3px)}

/* 交叉导航 */
.xnav{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:34px}
.xnav-card{
  display:block;background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 22px 20px;color:var(--text);box-shadow:var(--shadow),var(--shadow-in);
  transition:transform .24s var(--ease),border-color .24s var(--ease);
}
.xnav-card:hover{transform:translateY(-4px);border-color:var(--line-2);color:var(--text)}
.xnav-card h3{font-size:17px;font-weight:600;margin:0 0 8px;display:flex;align-items:center;justify-content:space-between;gap:10px}
.xnav-card p{margin:0;color:var(--text-2);font-size:14px;line-height:1.75}
.xnav-card h3 i{color:var(--cyan);font-size:13px;transition:transform .24s var(--ease)}
.xnav-card:hover h3 i{transform:translateX(3px)}

/* 核对流程 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;counter-reset:step}
.step{
  position:relative;background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 22px;box-shadow:var(--shadow),var(--shadow-in);
}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;
  border-radius:9px;font-size:13.5px;font-weight:800;color:#04101C;
  background:linear-gradient(135deg,var(--cyan),var(--violet));margin-bottom:14px;
  box-shadow:0 0 0 1px rgba(47,216,255,.35);
}
.step h3{font-size:16.5px;font-weight:600;margin:0 0 8px}
.step p{margin:0;color:var(--text-2);font-size:14px;line-height:1.78}

/* FAQ */
.faq-wrap{margin-top:6px;background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);padding:10px 24px;box-shadow:var(--shadow),var(--shadow-in)}
.accordion{--bs-accordion-bg:transparent;--bs-accordion-border-color:transparent;--bs-accordion-btn-color:var(--text);--bs-accordion-color:var(--text-2);--bs-accordion-active-bg:transparent;--bs-accordion-active-color:var(--cyan);--bs-accordion-btn-focus-border-color:transparent;--bs-accordion-btn-focus-box-shadow:none;--bs-accordion-transition:none}
.accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)}
.accordion-item:last-child{border-bottom:0}
.accordion-button{
  background:transparent;color:var(--text);font-size:18px;font-weight:600;
  padding:22px 4px;line-height:1.6;box-shadow:none !important;
}
.accordion-button:not(.collapsed){color:var(--cyan)}
.accordion-button::after{
  background-image:none;content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:13px;color:var(--cyan);width:auto;height:auto;transition:transform .26s var(--ease);
}
.accordion-button:not(.collapsed)::after{transform:rotate(180deg)}
.accordion-body{padding:0 4px 24px;color:var(--text-2);font-size:15px;line-height:1.85;max-width:860px}

/* CTA */
.cta-box{
  position:relative;overflow:hidden;margin-top:96px;
  display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;
  padding:38px 40px;border-radius:20px;
  background:
    radial-gradient(600px 240px at 12% 0%, rgba(47,216,255,.16), transparent 65%),
    radial-gradient(520px 240px at 92% 100%, rgba(108,92,255,.16), transparent 62%),
    var(--glass);
  border:1px solid var(--line-2);
  box-shadow:var(--shadow),var(--shadow-in);
}
.cta-box::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:repeating-linear-gradient(90deg, rgba(120,180,255,.05) 0 1px, transparent 1px 26px);
}
.cta-box h2{font-size:26px;font-weight:700;margin:0 0 8px;position:relative;z-index:1}
.cta-box p{margin:0;color:var(--text-2);font-size:15px;max-width:660px;position:relative;z-index:1}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1}

/* 页脚 */
.footer{margin-top:96px;background:var(--bg-deep);border-top:1px solid var(--line);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:34px;padding-bottom:46px}
.footer-grid h4{font-size:15px;font-weight:700;margin:0 0 16px;color:var(--text)}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-logo .logo-mark{width:24px;height:24px;border-radius:8px}
.footer-logo .logo-mark::after{inset:7px}
.footer p{color:var(--text-2);font-size:14px;line-height:1.85;margin:0 0 14px}
.footer-note{font-size:13px;color:var(--text-3);border-left:2px solid var(--cyan);padding-left:10px;margin-bottom:18px;line-height:1.8}
.footer-links{list-style:none;padding:0;margin:0;display:grid;gap:11px}
.footer-links a{color:var(--text-2);font-size:14px}
.footer-links a:hover{color:var(--cyan)}
.footer-sub{display:flex;gap:10px;flex-wrap:wrap}
.footer-sub input{
  flex:1 1 180px;min-width:0;background:rgba(18,30,52,.72);border:1px solid var(--line);
  border-radius:12px;color:var(--text);padding:11px 14px;font-size:14px;transition:all .22s var(--ease);
}
.footer-sub input::placeholder{color:var(--text-3)}
.footer-sub input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(47,216,255,.16)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);padding:20px 0;font-size:13px;color:var(--text-3);
}
.to-top{
  display:inline-flex;align-items:center;gap:8px;background:rgba(18,30,52,.72);
  border:1px solid var(--line-2);color:var(--text-2);border-radius:var(--r-pill);
  padding:7px 15px;font-size:13px;cursor:pointer;transition:all .22s var(--ease);
}
.to-top:hover{border-color:var(--cyan);color:var(--cyan)}

@media (max-width:1399.98px){
  :root{--wrap:1200px}
}
@media (max-width:1199.98px){
  .nav-links{gap:16px}
  .nav-links a{font-size:14px}
  .tl-item{grid-template-columns:80px 1fr 170px;gap:18px}
}
@media (max-width:991.98px){
  .nav-links,.nav-cta{display:none}
  .burger{display:inline-flex}
  .section{padding-top:76px}
  .cat-banner{height:222px}
  .cat-banner-text{left:26px;right:26px;bottom:26px}
  .cat-banner-text h1{font-size:32px}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .scene-grid{grid-template-columns:1fr}
  .xnav{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .tl-item{grid-template-columns:70px 1fr;gap:16px}
  .tl-side{grid-column:2;align-items:flex-start;text-align:left}
  .tl-tags{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-box{margin-top:76px;padding:30px 26px}
  .footer{margin-top:76px}
}
@media (max-width:767.98px){
  body{font-size:15.5px;line-height:1.8}
  .wrap{padding:0 16px}
  .nav-inner{padding:0 16px;height:62px;gap:12px}
  .logo-text{font-size:16px}
  .logo-sub{font-size:10.5px;letter-spacing:.1em}
  .section{padding-top:64px}
  .section-head h2{font-size:23px}
  .cat-banner{height:auto;padding:0}
  .cat-banner img{height:180px}
  .cat-banner-text{position:relative;left:0;right:0;bottom:0;padding:20px 20px 24px;max-width:none}
  .cat-banner-mask{background:linear-gradient(180deg,rgba(6,11,22,.72) 0%,rgba(6,11,22,.94) 62%)}
  .cat-banner-text h1{font-size:27px;margin-top:10px}
  .cat-banner-text p{font-size:14.5px}
  .lead{font-size:15px;margin-top:22px}
  .metrics{grid-template-columns:1fr 1fr}
  .metric{padding:18px}
  .metric .num{font-size:22px}
  .steps{grid-template-columns:1fr}
  .accordion-button{font-size:16.5px;padding:18px 2px}
  .cta-box h2{font-size:21px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{font-size:12.5px}
}
@media (max-width:575.98px){
  .topbar-right{display:none}
  .cat-banner-text h1{font-size:24px}
  .metrics{grid-template-columns:1fr}
  .scene-card{padding:22px 20px}
  .tl-item{padding:20px 6px;grid-template-columns:1fr;gap:10px}
  .tl-side{grid-column:1}
  .cta-actions .btn{width:100%}
}

/* roulang page: category4 */
:root{
  --c-bg:#060B16;
  --c-bg-deep:#040811;
  --c-surface:#0E1729;
  --c-surface-2:#111D33;
  --c-glass:rgba(18,30,52,.72);
  --c-primary:#2FD8FF;
  --c-second:#6C5CFF;
  --c-amber:#FFC857;
  --c-text:#E8F1FF;
  --c-text-2:#9FB2CC;
  --c-text-3:#6B7C99;
  --c-line:rgba(120,180,255,.14);
  --c-line-strong:rgba(120,180,255,.24);
  --c-success:#3BE0A0;
  --c-warn:#FFB14E;
  --c-error:#FF6B7A;
  --r-card:16px;
  --r-btn:12px;
  --r-badge:999px;
  --r-img:14px;
  --sh-card:0 18px 40px -20px rgba(3,8,20,.55);
  --sh-in:inset 0 1px 0 rgba(255,255,255,.06);
  --sh-glow:0 0 0 1px rgba(47,216,255,.45), 0 10px 30px -8px rgba(47,216,255,.45);
  --sp-sec:96px;
  --wrap:1240px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  padding:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Inter",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background-color:var(--c-bg);
  background-image:
    radial-gradient(900px 540px at 10% -8%, rgba(47,216,255,.08), transparent 62%),
    radial-gradient(780px 540px at 98% 6%, rgba(108,92,255,.09), transparent 60%);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(120,180,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,180,255,.04) 1px, transparent 1px);
  background-size:24px 24px;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none;transition:color .22s ease}
a:hover{color:var(--c-text)}
button{font-family:inherit}
input{font-family:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}

.wrap{
  width:100%;
  max-width:var(--wrap);
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}
main{position:relative;z-index:1;display:block}

/* ---------- 顶部信息条 ---------- */
.topbar{
  position:relative;
  z-index:60;
  height:36px;
  background:rgba(3,7,15,.92);
  border-bottom:1px solid var(--c-line);
  font-size:12.5px;
  color:var(--c-text-2);
}
.topbar-inner{
  height:36px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.topbar-left{display:flex;align-items:center;gap:10px;min-width:0}
.topbar-dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--c-success);
  box-shadow:0 0 10px rgba(59,224,160,.9);
  flex:none;
}
.topbar-domain{
  font-family:"Inter",system-ui,sans-serif;
  letter-spacing:.4px;
  color:var(--c-text);
  font-weight:600;
}
.topbar-tip{
  color:var(--c-text-3);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.topbar-right{display:flex;align-items:center;gap:18px;flex:none}
.topbar-right a{color:var(--c-text-2);position:relative}
.topbar-right a::after{
  content:"";
  position:absolute;
  left:0;right:100%;bottom:-3px;
  height:1px;
  background:var(--c-primary);
  transition:right .25s ease;
}
.topbar-right a:hover{color:var(--c-primary)}
.topbar-right a:hover::after{right:0}

/* ---------- 主导航 ---------- */
.mainnav{
  position:sticky;
  top:0;
  z-index:55;
  height:68px;
  background:rgba(6,11,22,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--c-line);
  transition:height .25s ease,background .25s ease,border-color .25s ease;
}
.mainnav.scrolled{
  height:60px;
  background:rgba(4,8,17,.94);
  border-bottom-color:var(--c-line-strong);
}
.nav-inner{
  max-width:var(--wrap);
  margin:0 auto;
  height:100%;
  padding:0 24px;
  display:flex;
  align-items:center;
  gap:26px;
}
.logo{display:flex;align-items:center;gap:11px;flex:none}
.logo-mark{
  width:30px;height:30px;
  border-radius:10px;
  flex:none;
  background:linear-gradient(135deg,var(--c-primary),var(--c-second));
  box-shadow:0 0 0 1px rgba(47,216,255,.45), 0 8px 22px -8px rgba(47,216,255,.75);
  position:relative;
}
.logo-mark::after{
  content:"";
  position:absolute;
  inset:9px;
  border-radius:4px;
  background:rgba(4,8,17,.86);
  transform:rotate(45deg);
}
.logo-text{
  display:block;
  font-size:16px;
  font-weight:800;
  letter-spacing:.6px;
  line-height:1.25;
  color:var(--c-text);
}
.logo-sub{
  display:block;
  font-size:11.5px;
  color:var(--c-text-3);
  letter-spacing:1.4px;
  line-height:1.3;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:auto;
  flex-wrap:nowrap;
}
.nav-links a{
  position:relative;
  font-size:14.5px;
  color:var(--c-text-2);
  padding:8px 12px;
  border-radius:9px;
  white-space:nowrap;
  transition:color .22s ease,background .22s ease;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-second));
  box-shadow:0 0 12px rgba(47,216,255,.8);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .24s ease;
}
.nav-links a:hover{color:var(--c-text);background:rgba(47,216,255,.06)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--c-primary)}
.nav-links a.active::after{transform:scaleX(1)}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  padding:12px 22px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s ease,box-shadow .24s ease,background .24s ease,color .24s ease,border-color .24s ease,filter .24s ease;
  line-height:1.4;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn-sm{padding:9px 16px;font-size:13.5px}
.btn-glow{
  color:#04121B;
  background:linear-gradient(135deg,var(--c-primary),#7FE9FF 60%,var(--c-second));
  box-shadow:var(--sh-glow);
}
.btn-glow:hover{filter:brightness(1.08);box-shadow:0 0 0 1px rgba(47,216,255,.65), 0 16px 38px -10px rgba(47,216,255,.65)}
.btn-ghost{
  color:var(--c-text);
  background:rgba(18,30,52,.55);
  border-color:var(--c-line-strong);
  box-shadow:var(--sh-in);
}
.btn-ghost:hover{
  color:var(--c-primary);
  border-color:rgba(47,216,255,.5);
  background:rgba(47,216,255,.08);
}
.nav-cta{margin-left:8px}
.burger{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  background:rgba(18,30,52,.7);
  border:1px solid var(--c-line-strong);
  color:var(--c-text);
  font-size:17px;
  align-items:center;
  justify-content:center;
  cursor:pointer;
}
.drawer{
  position:fixed;
  top:0;right:0;
  width:min(320px,84vw);
  height:100vh;
  background:rgba(8,14,26,.98);
  border-left:1px solid var(--c-line-strong);
  z-index:90;
  padding:26px 22px;
  transform:translateX(105%);
  transition:transform .3s ease;
  overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer h3{font-size:13px;color:var(--c-text-3);letter-spacing:2px;margin:0 0 14px}
.drawer a{
  display:block;
  padding:13px 4px;
  font-size:15px;
  color:var(--c-text-2);
  border-bottom:1px solid var(--c-line);
}
.drawer a.active{color:var(--c-primary)}
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(3,7,15,.7);
  opacity:0;
  pointer-events:none;
  transition:opacity .3s ease;
  z-index:80;
}
.drawer-mask.show{opacity:1;pointer-events:auto}

/* ---------- 分类封面 ---------- */
.cat-banner{
  position:relative;
  min-height:250px;
  display:flex;
  align-items:flex-end;
  overflow:hidden;
  border-bottom:1px solid var(--c-line);
}
.cat-banner img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  border-radius:0;
  opacity:.5;
}
.cat-banner-mask{
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(6,11,22,.42) 0%,rgba(6,11,22,.86) 62%,var(--c-bg) 100%);
}
.cat-banner-inner{
  position:relative;
  padding-top:56px;
  padding-bottom:44px;
}
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--c-text-3);
  margin-bottom:16px;
}
.crumb a{color:var(--c-text-3)}
.crumb a:hover{color:var(--c-primary)}
.crumb span{color:var(--c-primary)}
.badge-soft{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:5px 13px;
  border-radius:var(--r-badge);
  font-size:12.5px;
  color:var(--c-primary);
  background:rgba(47,216,255,.1);
  border:1px solid rgba(47,216,255,.32);
  margin-bottom:18px;
}
.badge-soft.amber{
  color:var(--c-amber);
  background:rgba(255,200,87,.1);
  border-color:rgba(255,200,87,.32);
}
.cat-banner h1{
  font-size:42px;
  font-weight:800;
  line-height:1.3;
  letter-spacing:.5px;
  margin:0 0 14px;
  max-width:900px;
}
.cat-banner p{
  margin:0;
  max-width:760px;
  color:var(--c-text-2);
  font-size:16.5px;
}

/* ---------- 通用板块 ---------- */
.section{
  padding:calc(var(--sp-sec) * .72) 0;
}
.section.tight{padding:56px 0}
.sec-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:38px;
  flex-wrap:wrap;
}
.sec-head h2{
  font-size:28px;
  font-weight:700;
  margin:0 0 8px;
  letter-spacing:.3px;
}
.sec-head p{
  margin:0;
  color:var(--c-text-2);
  font-size:15px;
  max-width:720px;
}
.sec-anchor{
  font-size:13.5px;
  color:var(--c-primary);
  display:inline-flex;
  align-items:center;
  gap:7px;
  white-space:nowrap;
}
.sec-anchor:hover{color:var(--c-text)}
.sec-anchor i{transition:transform .24s ease}
.sec-anchor:hover i{transform:translateX(4px)}

/* ---------- 实时状态条 ---------- */
.status-bar{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card),var(--sh-in);
  padding:22px 26px;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
  margin-top:-58px;
  position:relative;
  z-index:3;
}
.status-item{display:flex;flex-direction:column;gap:5px;border-left:1px solid var(--c-line);padding-left:20px}
.status-item:first-child{border-left:none;padding-left:0}
.status-num{
  font-family:"Inter",system-ui,sans-serif;
  font-size:24px;
  font-weight:800;
  color:var(--c-primary);
  letter-spacing:.5px;
  line-height:1.2;
}
.status-label{font-size:13px;color:var(--c-text-3)}
.status-item .live{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;color:var(--c-success);
}
.status-item .live::before{
  content:"";width:7px;height:7px;border-radius:50%;
  background:var(--c-success);
  box-shadow:0 0 10px rgba(59,224,160,.9);
}

/* ---------- 分类说明 ---------- */
.intro-grid{
  display:grid;
  grid-template-columns:1.25fr 1fr;
  gap:52px;
  align-items:center;
}
.intro-grid h2{font-size:28px;font-weight:700;margin:0 0 18px}
.intro-grid p{color:var(--c-text-2);margin:0 0 16px;font-size:15.5px;max-width:720px}
.intro-points{list-style:none;padding:0;margin:22px 0 0;display:flex;flex-direction:column;gap:0}
.intro-points li{
  display:flex;gap:14px;align-items:flex-start;
  padding:14px 0;
  border-top:1px solid var(--c-line);
  color:var(--c-text-2);
  font-size:15px;
}
.intro-points li i{color:var(--c-primary);margin-top:6px;font-size:13px}
.intro-media{
  position:relative;
  border-radius:20px;
  overflow:hidden;
  border:1px solid var(--c-line-strong);
  box-shadow:var(--sh-card);
  background:var(--c-surface);
}
.intro-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  border-radius:0;
  aspect-ratio:4/3;
}
.intro-media .cap{
  position:absolute;
  left:16px;bottom:16px;
  padding:6px 13px;
  border-radius:var(--r-badge);
  font-size:12.5px;
  color:var(--c-text);
  background:rgba(6,11,22,.78);
  border:1px solid var(--c-line-strong);
  backdrop-filter:blur(8px);
}

/* ---------- 编号条目列表 ---------- */
.checklist{
  border-top:1px solid var(--c-line);
}
.check-row{
  display:grid;
  grid-template-columns:70px 1fr auto 44px;
  align-items:center;
  gap:22px;
  padding:24px 16px;
  border-bottom:1px solid var(--c-line);
  transition:background .24s ease,transform .24s ease;
}
.check-row:hover{
  background:linear-gradient(90deg,rgba(47,216,255,.08),rgba(47,216,255,0) 72%);
}
.check-idx{
  font-family:"Inter",system-ui,sans-serif;
  font-size:22px;
  font-weight:800;
  color:var(--c-primary);
  letter-spacing:1px;
  opacity:.9;
}
.check-body h3{
  font-size:18px;
  font-weight:600;
  margin:0 0 6px;
  letter-spacing:.2px;
}
.check-body p{
  margin:0;
  color:var(--c-text-2);
  font-size:14.5px;
  line-height:1.72;
  max-width:660px;
}
.check-tags{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}
.tag{
  display:inline-flex;
  align-items:center;
  padding:4px 11px;
  border-radius:var(--r-badge);
  font-size:12px;
  color:var(--c-text-2);
  background:rgba(120,180,255,.08);
  border:1px solid var(--c-line-strong);
  white-space:nowrap;
}
.tag.warn{color:var(--c-warn);background:rgba(255,177,78,.1);border-color:rgba(255,177,78,.3)}
.tag.ok{color:var(--c-success);background:rgba(59,224,160,.1);border-color:rgba(59,224,160,.3)}
.tag.amber{color:var(--c-amber);background:rgba(255,200,87,.1);border-color:rgba(255,200,87,.3)}
.check-arrow{
  width:38px;height:38px;
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:var(--c-text-3);
  border:1px solid var(--c-line-strong);
  justify-self:end;
  transition:transform .24s ease,color .24s ease,border-color .24s ease,background .24s ease;
}
.check-row:hover .check-arrow{
  color:var(--c-primary);
  border-color:rgba(47,216,255,.5);
  background:rgba(47,216,255,.1);
  transform:translateX(3px);
}

/* ---------- 流程时间线 ---------- */
.timeline{
  position:relative;
  padding-left:34px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:9px;top:8px;bottom:8px;
  width:2px;
  background:linear-gradient(180deg,var(--c-primary),rgba(108,92,255,.35),transparent);
  border-radius:2px;
}
.tl-item{
  position:relative;
  padding:0 0 30px 0;
}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";
  position:absolute;
  left:-32px;top:7px;
  width:12px;height:12px;
  border-radius:50%;
  background:var(--c-bg);
  border:2px solid var(--c-primary);
  box-shadow:0 0 12px rgba(47,216,255,.7);
}
.tl-step{
  font-family:"Inter",system-ui,sans-serif;
  font-size:12.5px;
  letter-spacing:1.6px;
  color:var(--c-primary);
  text-transform:uppercase;
}
.tl-item h3{font-size:18px;font-weight:600;margin:6px 0 8px}
.tl-item p{margin:0;color:var(--c-text-2);font-size:14.5px;max-width:700px}
.tl-panel{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card),var(--sh-in);
  padding:34px 34px 30px;
}

/* ---------- 风险排行表 ---------- */
.rank-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card),var(--sh-in);
  overflow:hidden;
}
.rank-table{
  width:100%;
  border-collapse:collapse;
  font-size:14.5px;
}
.rank-table thead th{
  text-align:left;
  padding:16px 20px;
  font-size:12.5px;
  letter-spacing:1.4px;
  color:var(--c-text-3);
  font-weight:600;
  background:rgba(120,180,255,.05);
  border-bottom:1px solid var(--c-line);
  white-space:nowrap;
}
.rank-table tbody tr{
  border-bottom:1px solid var(--c-line);
  transition:background .22s ease;
}
.rank-table tbody tr:last-child{border-bottom:none}
.rank-table tbody tr:nth-child(even){background:rgba(120,180,255,.03)}
.rank-table tbody tr:hover{background:rgba(47,216,255,.07)}
.rank-table td{
  padding:18px 20px;
  color:var(--c-text-2);
  vertical-align:top;
  line-height:1.7;
}
.rank-no{
  font-family:"Inter",system-ui,sans-serif;
  font-weight:800;
  font-size:17px;
  color:var(--c-primary);
  width:64px;
}
.rank-table td strong{color:var(--c-text);font-weight:600}

/* ---------- 交叉导航 ---------- */
.crossnav{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:0;
  background:var(--c-glass);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card),var(--sh-in);
  overflow:hidden;
  backdrop-filter:blur(12px);
}
.cross-item{
  padding:26px 26px;
  border-right:1px solid var(--c-line);
  display:flex;
  flex-direction:column;
  gap:8px;
  transition:background .24s ease;
}
.cross-item:last-child{border-right:none}
.cross-item:hover{background:rgba(47,216,255,.07)}
.cross-item .ci-top{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.cross-item h3{font-size:17px;font-weight:600;margin:0}
.cross-item i{color:var(--c-primary);font-size:14px;transition:transform .24s ease}
.cross-item:hover i{transform:translateX(4px)}
.cross-item p{margin:0;color:var(--c-text-2);font-size:14px;line-height:1.7}

/* ---------- FAQ ---------- */
.faq-acc .accordion-item{
  background:transparent;
  border:none;
  border-bottom:1px solid var(--c-line);
}
.faq-acc .accordion-item:first-child{border-top:1px solid var(--c-line)}
.faq-acc .accordion-button{
  background:transparent;
  color:var(--c-text);
  font-size:18px;
  font-weight:600;
  padding:24px 44px 24px 4px;
  box-shadow:none;
  border-radius:0;
  line-height:1.6;
}
.faq-acc .accordion-button:not(.collapsed){
  background:linear-gradient(90deg,rgba(47,216,255,.07),transparent 70%);
  color:var(--c-primary);
  box-shadow:none;
}
.faq-acc .accordion-button:focus{box-shadow:none;outline:none}
.faq-acc .accordion-button::after{
  background-image:none;
  content:"\f078";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  color:var(--c-primary);
  font-size:14px;
  width:auto;height:auto;
  transform:none;
  transition:transform .26s ease;
  position:absolute;
  right:8px;
  top:50%;
  margin-top:-9px;
  display:flex;align-items:center;justify-content:center;
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(180deg)}
.faq-acc .accordion-body{
  padding:0 44px 26px 4px;
  color:var(--c-text-2);
  font-size:15px;
  line-height:1.85;
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  border-radius:22px;
  overflow:hidden;
  border:1px solid var(--c-line-strong);
  background-image:linear-gradient(120deg,rgba(6,11,22,.92),rgba(11,20,38,.86)),url(/assets/images/backpic/back-3.webp);
  background-size:cover;
  background-position:center;
  box-shadow:var(--sh-card);
  padding:52px 46px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  flex-wrap:wrap;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-80px;top:-90px;
  width:340px;height:340px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(47,216,255,.24),transparent 66%);
  pointer-events:none;
}
.cta-band h2{
  font-size:27px;
  font-weight:700;
  margin:0 0 10px;
  position:relative;
  z-index:1;
}
.cta-band p{
  margin:0;
  color:var(--c-text-2);
  max-width:620px;
  font-size:15.5px;
  position:relative;
  z-index:1;
}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1}

/* ---------- 页脚 ---------- */
.footer{
  position:relative;
  z-index:1;
  margin-top:40px;
  background:var(--c-bg-deep);
  border-top:1px solid var(--c-line);
  padding:66px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:42px;
  padding-bottom:48px;
}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-logo .logo-mark{width:26px;height:26px;border-radius:9px}
.footer-logo .logo-mark::after{inset:8px}
.footer-logo .logo-text{font-weight:800;letter-spacing:.5px}
.footer p{color:var(--c-text-2);font-size:14px;line-height:1.8;margin:0 0 14px;max-width:420px}
.footer-note{
  font-size:13px;
  color:var(--c-text-3);
  border-left:2px solid var(--c-primary);
  padding-left:12px;
  margin-bottom:18px;
  line-height:1.75;
}
.footer h4{
  font-size:14px;
  font-weight:600;
  color:var(--c-text);
  letter-spacing:1px;
  margin:0 0 16px;
}
.footer-links{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:11px}
.footer-links a{color:var(--c-text-2);font-size:14px;position:relative;display:inline-block}
.footer-links a::after{
  content:"";
  position:absolute;
  left:0;right:100%;bottom:-2px;
  height:1px;
  background:var(--c-primary);
  transition:right .25s ease;
}
.footer-links a:hover{color:var(--c-primary)}
.footer-links a:hover::after{right:0}
.footer-sub{display:flex;gap:10px;margin-top:6px;flex-wrap:wrap}
.footer-sub input{
  flex:1 1 180px;
  min-width:0;
  background:var(--c-surface);
  border:1px solid var(--c-line-strong);
  border-radius:var(--r-btn);
  color:var(--c-text);
  padding:10px 14px;
  font-size:14px;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.footer-sub input::placeholder{color:var(--c-text-3)}
.footer-sub input:focus{
  outline:none;
  border-color:rgba(47,216,255,.6);
  box-shadow:0 0 0 3px rgba(47,216,255,.16);
}
.footer-bottom{
  border-top:1px solid var(--c-line);
  padding:20px 0 26px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  font-size:13px;
  color:var(--c-text-3);
  flex-wrap:wrap;
}
.to-top{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(18,30,52,.7);
  border:1px solid var(--c-line-strong);
  color:var(--c-text-2);
  border-radius:var(--r-badge);
  padding:8px 16px;
  font-size:13px;
  cursor:pointer;
  transition:color .22s ease,border-color .22s ease,background .22s ease;
}
.to-top:hover{color:var(--c-primary);border-color:rgba(47,216,255,.5);background:rgba(47,216,255,.08)}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .cat-banner h1{font-size:37px}
  .wrap,.nav-inner{padding:0 22px}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:34px}
}
@media (max-width:992px){
  :root{--sp-sec:80px}
  .nav-links,.nav-cta{display:none}
  .burger{display:inline-flex;margin-left:auto}
  .cat-banner h1{font-size:32px}
  .status-bar{grid-template-columns:repeat(2,1fr);margin-top:-40px}
  .status-item:nth-child(3){border-left:none;padding-left:0}
  .intro-grid{grid-template-columns:1fr;gap:34px}
  .check-row{grid-template-columns:54px 1fr 38px;gap:16px;padding:22px 8px}
  .check-tags{grid-column:2/3;justify-content:flex-start;margin-top:4px}
  .check-arrow{grid-row:1/2;grid-column:3/4}
  .crossnav{grid-template-columns:1fr}
  .cross-item{border-right:none;border-bottom:1px solid var(--c-line)}
  .cross-item:last-child{border-bottom:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:40px 30px}
}
@media (max-width:768px){
  :root{--sp-sec:68px}
  body{font-size:15.5px}
  .topbar-right{display:none}
  .cat-banner{min-height:220px}
  .cat-banner-inner{padding-top:40px;padding-bottom:36px}
  .cat-banner h1{font-size:28px}
  .cat-banner p{font-size:15px}
  .sec-head h2,.intro-grid h2{font-size:23px}
  .status-bar{padding:20px;gap:16px}
  .status-num{font-size:20px}
  .tl-panel{padding:26px 22px 22px}
  .timeline{padding-left:28px}
  .tl-item::before{left:-26px}
  .rank-table thead th{padding:13px 14px}
  .rank-table td{padding:14px 14px;font-size:14px}
  .faq-acc .accordion-button{font-size:16.5px;padding:20px 40px 20px 2px}
  .faq-acc .accordion-body{padding:0 40px 22px 2px;font-size:14.5px}
  .cta-band h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer{padding-top:52px}
}
@media (max-width:576px){
  .wrap,.nav-inner{padding:0 16px}
  .cat-banner h1{font-size:25px}
  .status-bar{grid-template-columns:1fr}
  .status-item,
  .status-item:nth-child(3){border-left:none;padding-left:0;border-top:1px solid var(--c-line);padding-top:12px}
  .status-item:first-child{border-top:none;padding-top:0}
  .check-row{grid-template-columns:40px 1fr;gap:12px}
  .check-arrow{display:none}
  .check-body h3{font-size:16.5px}
  .btn{width:100%}
  .cta-actions{width:100%}
  .footer-bottom{justify-content:flex-start}
}