/* roulang page: index */
:root{
  --bg:#070B14;
  --panel:#0B1220;
  --card:#111A2B;
  --primary:#2BE3C2;
  --primary-dark:#14A88F;
  --primary-light:#7BF4E0;
  --accent:#FF7A45;
  --accent-dark:#D95A28;
  --purple:#7C5BFF;
  --text:#EAF2FF;
  --text-2:#9FB0C8;
  --text-3:#6B7C96;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.06);
  --glass-line:rgba(255,255,255,.12);
  --ok:#38D39F;
  --warn:#FFB020;
  --err:#FF5C6C;
  --r-card:16px;
  --r-panel:20px;
  --r-btn:12px;
  --r-img:14px;
  --sh-1:0 8px 24px rgba(0,0,0,.35);
  --sh-2:0 16px 40px rgba(0,0,0,.45);
  --sh-3:0 24px 64px rgba(0,0,0,.55);
  --glow:0 0 0 1px rgba(43,227,194,.35), 0 8px 28px rgba(43,227,194,.22);
  --glow-h:0 0 0 1px rgba(43,227,194,.6), 0 12px 36px rgba(43,227,194,.34);
  --container:1240px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .22s ease;}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;}
p{margin:0;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
.section{padding:96px 0;position:relative;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.section-head h2{font-size:clamp(24px,3vw,36px);letter-spacing:-.01em;}
.section-head p{margin-top:10px;font-size:14px;color:var(--text-2);max-width:620px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;color:var(--primary);text-transform:uppercase;margin-bottom:14px;}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--primary);opacity:.7;}

/* ============ 顶部倒计时条 ============ */
.ticker{
  background:linear-gradient(90deg,rgba(255,122,69,.14),rgba(255,122,69,.04) 60%,rgba(43,227,194,.08));
  border-bottom:1px solid var(--line);
  font-size:14px;
}
.ticker.hidden{display:none;}
.ticker-inner{display:flex;align-items:center;gap:18px;height:44px;}
.ticker-name{color:var(--text-2);white-space:nowrap;}
.ticker-name strong{color:var(--text);font-weight:600;}
.ticker-clock{
  display:flex;align-items:center;gap:4px;
  font-variant-numeric:tabular-nums;
  font-size:18px;font-weight:700;letter-spacing:.04em;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.ticker-clock span.sep{color:var(--text-3);-webkit-text-fill-color:var(--text-3);}
.ticker-actions{margin-left:auto;display:flex;align-items:center;gap:16px;}
.ticker-link{color:var(--primary);font-size:13px;}
.ticker-link:hover{color:var(--primary-light);}
.ticker-close{width:26px;height:26px;border-radius:8px;display:grid;place-items:center;color:var(--text-3);transition:.2s;}
.ticker-close:hover{background:var(--glass);color:var(--text);}

/* ============ 导航 ============ */
.site-head{
  position:sticky;top:0;z-index:80;
  background:rgba(7,11,20,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease;
}
.site-head.is-scrolled{background:rgba(7,11,20,.9);border-bottom-color:var(--line);}
.nav{display:flex;align-items:center;gap:26px;height:70px;}
.logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;}
.logo-mark{
  width:28px;height:28px;border-radius:9px;flex:none;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  box-shadow:0 0 0 1px rgba(43,227,194,.45),0 0 18px rgba(43,227,194,.4);
  display:grid;place-items:center;
}
.logo-mark i{width:10px;height:10px;border-radius:3px;background:#06120F;display:block;}
.nav-menu{display:flex;align-items:center;gap:4px;flex:1;min-width:0;}
.nav-menu a{
  position:relative;
  padding:9px 14px;border-radius:10px;
  font-size:15px;color:var(--text-2);
  transition:color .2s ease,background .2s ease;
}
.nav-menu a:hover{color:var(--primary-light);background:rgba(255,255,255,.05);}
.nav-menu a.active{color:var(--primary);}
.nav-menu a.active::after{
  content:"";position:absolute;left:14px;bottom:2px;width:52%;height:2px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 10px rgba(43,227,194,.6);
}
.nav-tools{display:flex;align-items:center;gap:12px;}
.search{position:relative;width:224px;}
.search svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:15px;height:15px;stroke:var(--text-3);fill:none;stroke-width:2;}
.search input{
  width:100%;height:38px;padding:0 12px 0 34px;
  border-radius:12px;background:var(--glass);
  border:1px solid var(--glass-line);
  color:var(--text);font-size:14px;outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search input::placeholder{color:var(--text-3);}
.search input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(43,227,194,.15);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:var(--glass);border:1px solid var(--glass-line);
  place-items:center;color:var(--text);
}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .2s ease,box-shadow .25s ease,border-color .25s ease,color .25s ease,background .25s ease;
}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#06120F;box-shadow:var(--glow);}
.btn-primary:hover{transform:translateY(-1px);box-shadow:var(--glow-h);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(43,227,194,.4),0 4px 14px rgba(43,227,194,.2);}
.btn-ghost{
  background:var(--glass);border:1px solid var(--glass-line);color:var(--text);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none !important;box-shadow:none;}
.text-btn{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);}
.text-btn .arrow{transition:transform .22s ease;}
.text-btn:hover .arrow{transform:translateX(3px);}
.text-btn:hover{color:var(--primary-light);}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;
  font-size:12px;letter-spacing:.02em;line-height:1.5;
  background:rgba(43,227,194,.14);color:var(--primary-light);
}
.badge-purple{background:rgba(124,91,255,.16);color:#B9A6FF;}
.badge-accent{background:var(--accent);color:#1B0C04;font-weight:700;}
.badge-line{background:transparent;border:1px solid var(--glass-line);color:var(--text-2);}

/* ============ 玻璃卡片 ============ */
.glass-card{
  position:relative;
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--r-card);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.glass-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.25),transparent);
  pointer-events:none;
}
.glass-card:hover{transform:translateY(-4px);border-color:rgba(43,227,194,.4);box-shadow:var(--sh-2);}
.card-body{padding:24px 26px;position:relative;z-index:1;}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:76px 0 92px;min-height:min(84vh,860px);display:flex;align-items:center;}
.hero-bg{position:absolute;inset:0;background:url(/assets/images/backpic/back-1.png) center/cover no-repeat;opacity:.6;}
.hero-mask{
  position:absolute;inset:0;
  background:
    linear-gradient(100deg,rgba(7,11,20,.97) 0%,rgba(7,11,20,.88) 44%,rgba(7,11,20,.52) 78%,rgba(7,11,20,.82) 100%),
    linear-gradient(180deg,rgba(7,11,20,.45),rgba(7,11,20,.96));
}
.hero-grid-lines{
  position:absolute;inset:0;opacity:.06;pointer-events:none;
  background-image:linear-gradient(rgba(43,227,194,.6) 1px,transparent 1px),linear-gradient(90deg,rgba(43,227,194,.6) 1px,transparent 1px);
  background-size:64px 64px;
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:repeat(12,1fr);gap:40px;align-items:center;width:100%;}
.hero-copy{grid-column:span 6;}
.hero-copy h1{font-size:clamp(32px,4.6vw,56px);line-height:1.15;letter-spacing:-.01em;max-width:14em;}
.hero-copy h1 em{font-style:normal;color:var(--primary);text-shadow:0 0 24px rgba(43,227,194,.35);}
.hero-sub{margin-top:22px;font-size:18px;line-height:1.8;color:var(--text-2);max-width:34em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-trust{margin-top:22px;font-size:14px;color:var(--text-3);display:flex;flex-wrap:wrap;gap:10px;align-items:center;}
.hero-trust i{width:4px;height:4px;border-radius:50%;background:var(--text-3);display:inline-block;font-style:normal;}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px;}
.stat{
  min-width:132px;padding:14px 18px;border-radius:14px;
  background:var(--glass);border:1px solid var(--glass-line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.stat b{display:block;font-size:28px;line-height:1.2;font-variant-numeric:tabular-nums;color:var(--primary);font-weight:700;}
.stat span{font-size:12px;color:var(--text-2);letter-spacing:.02em;}

.hero-visual{grid-column:span 6;position:relative;display:flex;justify-content:flex-end;}
.hero-glow{
  position:absolute;width:420px;height:420px;right:-60px;top:-80px;border-radius:50%;
  background:radial-gradient(circle,rgba(43,227,194,.34),transparent 68%);
  filter:blur(10px);pointer-events:none;
}
.preview-card{
  position:relative;width:100%;max-width:460px;
  transform:rotate(4deg);
  border-radius:var(--r-panel);
  background:rgba(11,18,32,.78);
  border:1px solid var(--glass-line);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:var(--sh-3);
  padding:16px;
  transition:transform .5s ease;
}
.preview-card:hover{transform:rotate(2deg) translateY(-6px);}
.preview-media{border-radius:var(--r-img);overflow:hidden;aspect-ratio:16/10;background:#0B1220;}
.preview-media img{width:100%;height:100%;object-fit:cover;}
.preview-tag{position:absolute;top:26px;left:26px;}
.preview-rows{margin-top:14px;display:grid;gap:10px;}
.preview-row{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 16px;border-radius:12px;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.08);
}
.preview-row span{font-size:13px;color:var(--text-2);}
.preview-row strong{font-size:14px;color:var(--text);font-weight:600;font-variant-numeric:tabular-nums;}
.preview-row strong.hot{color:var(--accent);}

/* ============ 活动卖点 错列网格 ============ */
.features{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.feature{display:flex;flex-direction:column;}
.feature-a{grid-column:span 7;}
.feature-b{grid-column:span 5;}
.feature-c{grid-column:span 5;}
.feature-d{grid-column:span 7;}
.feature-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:52px;height:52px;border-radius:14px;
  font-size:22px;font-weight:700;font-variant-numeric:tabular-nums;
  color:var(--accent);
  border:1px solid rgba(255,122,69,.45);
  background:rgba(255,122,69,.08);
  margin-bottom:20px;
}
.feature h3{font-size:21px;margin-bottom:12px;}
.feature p{font-size:15px;color:var(--text-2);line-height:1.8;}
.feature-list{margin-top:18px;display:grid;gap:10px;}
.feature-list li{display:flex;gap:10px;font-size:14px;color:var(--text-2);align-items:flex-start;}
.feature-list li::before{
  content:"";flex:none;width:7px;height:7px;margin-top:8px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 8px rgba(43,227,194,.55);
}
.feature-media{margin-top:22px;border-radius:var(--r-img);overflow:hidden;aspect-ratio:16/9;border:1px solid var(--line);}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.feature:hover .feature-media img{transform:scale(1.04);}

/* ============ 图墙 ============ */
.wall{display:grid;grid-template-columns:repeat(12,1fr);gap:6px;}
.wall-item{border-radius:var(--r-img);overflow:hidden;position:relative;background:#0B1220;display:block;}
.wall-item img{width:100%;height:100%;object-fit:cover;transition:transform .55s ease,filter .4s ease;}
.wall-item::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.15),rgba(7,11,20,.82));
  opacity:.65;transition:opacity .35s ease;
}
.wall-item:hover img{transform:scale(1.03);}
.wall-item:hover::after{opacity:.35;}
.wall-cap{
  position:absolute;left:20px;right:20px;bottom:18px;z-index:2;
  opacity:0;transform:translateY(8px);
  transition:opacity .35s ease,transform .35s ease;
}
.wall-item:hover .wall-cap{opacity:1;transform:translateY(0);}
.wall-cap strong{display:block;font-size:16px;font-weight:600;}
.wall-cap span{font-size:13px;color:var(--text-2);}
.wall-a{grid-column:span 7;height:340px;}
.wall-b{grid-column:span 5;height:167px;}
.wall-c{grid-column:span 5;height:167px;}
.wall-d,.wall-e,.wall-f{grid-column:span 4;height:200px;}

/* ============ 最新信息 CMS ============ */
.news-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.news-main{grid-column:span 7;padding:0;}
.news-main-link{display:block;height:100%;}
.news-main-media{aspect-ratio:16/9;overflow:hidden;background:#0B1220;}
.news-main-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.news-main:hover .news-main-media img{transform:scale(1.04);}
.news-main-body{padding:24px 26px 26px;}
.news-main-body h3{font-size:22px;margin:14px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-main-body p{font-size:15px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.meta{display:flex;align-items:center;gap:10px;margin-top:18px;font-size:13px;color:var(--text-3);}
.meta .dot{opacity:.6;}
.meta .arrow{margin-left:auto;color:var(--primary);transition:transform .22s ease;font-size:15px;}
.news-main:hover .meta .arrow,.news-mini:hover .meta .arrow{transform:translateX(4px);}
.news-side{grid-column:span 5;display:grid;gap:16px;align-content:start;}
.news-mini{display:flex;gap:16px;padding:14px;align-items:center;}
.news-mini-thumb{flex:none;width:96px;height:72px;border-radius:10px;overflow:hidden;background:#0B1220;}
.news-mini-thumb img{width:100%;height:100%;object-fit:cover;}
.news-mini-body{min-width:0;flex:1;}
.news-mini h4{
  font-size:15px;font-weight:600;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-mini .meta{margin-top:8px;}
.empty-state{
  grid-column:span 12;
  display:flex;flex-direction:column;align-items:center;text-align:center;gap:10px;
  padding:64px 28px;border-radius:var(--r-panel);
  background:var(--glass);border:1px solid var(--glass-line);
}
.empty-state svg{width:44px;height:44px;stroke:var(--primary);opacity:.4;fill:none;stroke-width:1.6;}
.empty-state strong{font-size:17px;}
.empty-state span{font-size:14px;color:var(--text-2);}
.empty-state .btn{margin-top:10px;}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-panel);
  border:1px solid var(--glass-line);
  background:linear-gradient(135deg,rgba(43,227,194,.1),rgba(11,18,32,.7) 45%,rgba(255,122,69,.08));
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.07;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.6) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:44px 44px;
}
.cta-band h2{font-size:clamp(22px,2.6vw,32px);position:relative;}
.cta-band p{margin-top:10px;font-size:15px;color:var(--text-2);max-width:52ch;position:relative;}
.cta-actions{display:flex;gap:14px;flex:none;position:relative;}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.faq-item{
  background:var(--glass);border:1px solid var(--glass-line);
  border-radius:var(--r-card);overflow:hidden;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item.open{border-color:rgba(43,227,194,.4);box-shadow:var(--sh-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--text);
}
.faq-icon{flex:none;width:22px;height:22px;position:relative;transition:transform .3s ease;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--text-3);
  transform:translate(-50%,-50%);border-radius:2px;transition:background .3s ease;
}
.faq-icon::before{width:14px;height:2px;}
.faq-icon::after{width:2px;height:14px;}
.faq-item.open .faq-icon{transform:rotate(45deg);}
.faq-item.open .faq-icon::before,.faq-item.open .faq-icon::after{background:var(--primary);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;}
.faq-a p{padding:0 22px 22px;font-size:14px;line-height:1.85;color:var(--text-2);}

/* ============ 页脚 ============ */
.site-foot{margin-top:24px;border-top:1px solid var(--line);background:var(--panel);padding:64px 0 0;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px;}
.foot-brand .logo{margin-bottom:16px;}
.foot-brand p{font-size:14px;color:var(--text-2);max-width:34ch;}
.foot-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.foot-col h4{font-size:14px;color:var(--primary);margin-bottom:16px;letter-spacing:.02em;}
.foot-col ul{display:grid;gap:10px;}
.foot-col a{font-size:14px;color:var(--text-2);}
.foot-col a:hover{color:var(--primary);}
.foot-contact li{font-size:14px;color:var(--text-2);}
.foot-bottom{
  margin-top:48px;border-top:1px solid var(--line);
  padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
}
.foot-bottom p{font-size:13px;color:var(--text-3);}
.foot-bottom .links{display:flex;gap:18px;}
.foot-bottom .links a{font-size:13px;color:var(--text-3);}
.foot-bottom .links a:hover{color:var(--primary);}

/* ============ 移动抽屉 ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:90;
  opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:78vw;max-width:320px;z-index:100;
  background:rgba(11,18,32,.96);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-left:1px solid var(--glass-line);
  padding:22px;
  transform:translateX(100%);
  transition:transform .24s ease;
  overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-close{width:38px;height:38px;border-radius:11px;background:var(--glass);border:1px solid var(--glass-line);display:grid;place-items:center;font-size:18px;color:var(--text-2);}
.drawer-nav{display:grid;gap:6px;margin-bottom:22px;}
.drawer-nav a{padding:13px 14px;border-radius:12px;font-size:15px;color:var(--text-2);background:rgba(255,255,255,.03);}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--primary);background:rgba(43,227,194,.1);}
.drawer .btn{width:100%;margin-bottom:10px;}
.drawer .search{width:100%;margin-bottom:18px;}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .nav-menu a{padding:9px 11px;font-size:14px;}
  .search{width:190px;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .section{padding:72px 0;}
  .nav-menu,.nav-tools .search,.nav-tools .btn-ghost{display:none;}
  .nav-toggle{display:grid;}
  .hero{min-height:auto;padding:56px 0 64px;}
  .hero-inner{grid-template-columns:1fr;gap:44px;}
  .hero-copy,.hero-visual{grid-column:span 12;}
  .hero-visual{justify-content:center;}
  .preview-card{transform:rotate(0);max-width:520px;}
  .feature-a,.feature-b,.feature-c,.feature-d{grid-column:span 12;}
  .news-main{grid-column:span 12;}
  .news-side{grid-column:span 12;}
  .wall-a{grid-column:span 12;height:300px;}
  .wall-b,.wall-c{grid-column:span 6;height:180px;}
  .wall-d,.wall-e,.wall-f{grid-column:span 6;height:170px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 30px;}
  .cta-actions{width:100%;}
  .faq-wrap{grid-template-columns:1fr;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .nav{height:64px;gap:14px;}
  .logo{font-size:16px;}
  .hero-copy h1{font-size:clamp(28px,8vw,38px);}
  .hero-sub{font-size:16px;}
  .hero-actions .btn{flex:1 1 auto;}
  .hero-stats{width:100%;}
  .stat{flex:1 1 40%;min-width:0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px;}
  .wall-d,.wall-e,.wall-f{display:none;}
  .wall-a{height:240px;}
  .wall-b,.wall-c{grid-column:span 6;height:150px;}
  .news-grid{gap:16px;}
  .news-mini-thumb{width:82px;height:64px;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .ticker-name{display:none;}
  .ticker-inner{gap:12px;}
  .foot-grid{grid-template-columns:1fr;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:480px){
  .hero-stats{gap:10px;}
  .stat{padding:12px 14px;}
  .stat b{font-size:22px;}
  .card-body{padding:20px;}
  .news-main-body{padding:20px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
/* ===== 设计令牌 ===== */
:root{
  --bg:#070B14;
  --panel:#0B1220;
  --card:#111A2B;
  --primary:#2BE3C2;
  --primary-dark:#14A88F;
  --primary-light:#7BF4E0;
  --accent:#FF7A45;
  --accent-dark:#D95A28;
  --purple:#7C5BFF;
  --success:#38D39F;
  --warning:#FFB020;
  --danger:#FF5C6C;
  --text:#EAF2FF;
  --text-2:#9FB0C8;
  --text-3:#6B7C96;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.06);
  --glass-border:rgba(255,255,255,.12);
  --radius-card:16px;
  --radius-panel:20px;
  --radius-btn:12px;
  --radius-img:14px;
  --shadow-1:0 8px 24px rgba(0,0,0,.35);
  --shadow-2:0 16px 40px rgba(0,0,0,.45);
  --shadow-3:0 24px 64px rgba(0,0,0,.55);
  --glow:0 0 0 1px rgba(43,227,194,.35), 0 8px 28px rgba(43,227,194,.22);
  --glow-hover:0 0 0 1px rgba(43,227,194,.6), 0 12px 36px rgba(43,227,194,.34);
  --container:1240px;
}
/* ===== reset / base ===== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.5;
}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700;letter-spacing:-.01em}
p{margin:0}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease}
ul,ol{margin:0;padding:0;list-style:none}
button,input{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
svg{fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
::selection{background:rgba(43,227,194,.3)}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;position:relative;z-index:1}
/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
  white-space:nowrap;cursor:pointer;
}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-primary{
  background:linear-gradient(135deg,#2BE3C2 0%,#14A88F 100%);
  color:#06120F;box-shadow:var(--glow);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:var(--glow-hover)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(43,227,194,.45),0 4px 14px rgba(43,227,194,.2)}
.btn-ghost{
  background:var(--glass);border:1px solid var(--glass-border);color:var(--text);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);box-shadow:0 0 0 1px rgba(43,227,194,.25)}
.btn-accent{background:linear-gradient(135deg,#FF7A45 0%,#D95A28 100%);color:#1A0A02;box-shadow:0 0 0 1px rgba(255,122,69,.4),0 8px 26px rgba(255,122,69,.24)}
.btn-accent:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(255,122,69,.65),0 12px 34px rgba(255,122,69,.32)}
.btn-line{background:transparent;border:1px solid var(--glass-border);color:var(--text-2)}
.btn-line:hover{border-color:var(--primary);color:var(--primary)}
.btn-block{width:100%}
.btn[disabled],.btn:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:14px;font-weight:600}
.btn-text svg{width:16px;height:16px;transition:transform .2s ease}
.btn-text:hover svg{transform:translateX(3px)}
/* ===== 徽章 ===== */
.badge{display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;border-radius:999px;font-size:12px;letter-spacing:.02em;font-weight:600}
.badge-line{border:1px solid var(--glass-border);color:var(--text-2);background:var(--glass)}
.badge-main{background:rgba(43,227,194,.14);color:var(--primary-light)}
.badge-purple{background:rgba(124,91,255,.16);color:#BDAEFF}
.badge-accent{background:var(--accent);color:#1A0A02}
/* ===== 导航 ===== */
.site-head{
  position:sticky;top:0;z-index:60;
  background:rgba(7,11,20,.72);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease;
}
.site-head.is-stuck{background:rgba(7,11,20,.9);border-bottom-color:var(--line)}
.nav{display:flex;align-items:center;gap:28px;height:70px}
.logo{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--text);letter-spacing:.01em;flex-shrink:0}
.logo-mark{
  width:28px;height:28px;border-radius:9px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(43,227,194,.28),rgba(124,91,255,.18));
  border:1px solid rgba(43,227,194,.55);
  box-shadow:0 0 14px rgba(43,227,194,.35);
}
.logo-mark i{width:10px;height:10px;border-radius:3px;background:var(--primary);display:block;box-shadow:0 0 8px rgba(43,227,194,.8)}
.logo:hover .logo-mark{box-shadow:0 0 20px rgba(43,227,194,.6)}
.nav-menu{display:flex;align-items:center;gap:6px;margin-right:auto}
.nav-menu a{
  position:relative;padding:8px 14px;border-radius:10px;font-size:15px;color:var(--text-2);
}
.nav-menu a:hover{color:var(--primary);background:rgba(255,255,255,.04)}
.nav-menu a.active{color:var(--primary);background:rgba(43,227,194,.1);box-shadow:inset 0 0 0 1px rgba(43,227,194,.28)}
.nav-tools{display:flex;align-items:center;gap:12px}
.search{
  display:flex;align-items:center;gap:8px;height:38px;width:220px;padding:0 12px;
  border-radius:var(--radius-btn);background:var(--glass);
  border:1px solid var(--glass-border);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search svg{width:16px;height:16px;color:var(--text-3);flex-shrink:0}
.search input{width:100%;border:0;background:transparent;font-size:14px;color:var(--text);outline:none}
.search input::placeholder{color:var(--text-3)}
.search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(43,227,194,.16)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--glass-border);background:var(--glass);position:relative}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:var(--text);
}
.nav-toggle span{top:50%;margin-top:-1px}
.nav-toggle span::before{top:-6px;left:0;transform:none}
.nav-toggle span::after{top:6px;left:0;transform:none}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:78vw;max-width:320px;z-index:90;
  background:rgba(11,18,32,.94);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-left:1px solid var(--glass-border);padding:24px 20px;
  transform:translateX(100%);opacity:0;transition:transform .24s ease,opacity .24s ease;
  overflow-y:auto;
}
.nav-drawer.open{transform:translateX(0);opacity:1}
.nav-drawer .d-title{font-size:12px;color:var(--text-3);letter-spacing:.08em;margin:18px 0 8px}
.nav-drawer a.d-link{display:block;padding:12px 4px;font-size:16px;color:var(--text-2);border-bottom:1px solid var(--line)}
.nav-drawer a.d-link:hover,.nav-drawer a.d-link.active{color:var(--primary)}
.nav-drawer .btn{width:100%;margin-top:12px}
.nav-drawer .search{width:100%;margin-top:16px}
.drawer-mask{position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:80;opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease}
.drawer-mask.open{opacity:1;visibility:visible}
/* ===== 页头横幅 ===== */
.page-hero{
  position:relative;padding:44px 0 40px;
  background-image:linear-gradient(90deg,rgba(7,11,20,.97) 0%,rgba(7,11,20,.82) 45%,rgba(7,11,20,.94) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--text-3);margin-bottom:18px}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--primary)}
.crumb .sep{color:var(--text-3);opacity:.7}
.crumb .now{color:var(--primary);max-width:320px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.page-hero h1{
  font-size:clamp(28px,3.6vw,44px);line-height:1.22;font-weight:700;
  max-width:920px;margin-bottom:18px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;color:var(--text-3)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--text-3);opacity:.6}
.lede{
  margin-top:22px;max-width:900px;padding:18px 22px;
  border-left:3px solid var(--primary);border-radius:0 var(--radius-card) var(--radius-card) 0;
  background:var(--glass);border-top:1px solid var(--glass-border);
  border-right:1px solid var(--glass-border);border-bottom:1px solid var(--glass-border);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  font-size:17px;line-height:1.8;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
/* ===== 主体布局 ===== */
.layout{
  display:grid;grid-template-columns:minmax(0,1fr) 336px;gap:40px;
  padding:56px 0 88px;align-items:start;
}
.article-body{
  background:rgba(11,18,32,.72);border:1px solid var(--glass-border);
  border-radius:var(--radius-panel);padding:36px 40px 42px;
  box-shadow:var(--shadow-1);position:relative;overflow:hidden;
}
.article-body::before{
  content:"";position:absolute;inset:0 0 auto 0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.25),transparent);
}
.article-content{font-size:16px;line-height:1.88;color:#C6D3E6;max-width:800px}
.article-content>p:first-of-type{color:var(--text)}
.article-content p{margin:0 0 1.2em}
.article-content h2{
  position:relative;margin:48px 0 16px;padding-left:14px;
  font-size:clamp(21px,2.3vw,27px);line-height:1.35;color:var(--text);
}
.article-content h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--primary),var(--primary-dark));
}
.article-content h3{margin:32px 0 12px;font-size:20px;line-height:1.4;color:var(--text)}
.article-content ul{margin:0 0 1.3em;padding-left:2px}
.article-content ul li{position:relative;padding-left:20px;margin-bottom:8px}
.article-content ul li::before{
  content:"";position:absolute;left:0;top:.62em;width:7px;height:7px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 8px rgba(43,227,194,.5);
}
.article-content ol{margin:0 0 1.3em;counter-reset:li;padding-left:0}
.article-content ol li{position:relative;padding-left:36px;margin-bottom:10px;counter-increment:li}
.article-content ol li::before{
  content:counter(li);
  position:absolute;left:0;top:.15em;width:24px;height:24px;border-radius:8px;
  display:grid;place-items:center;font-size:12px;font-weight:700;color:var(--primary);
  border:1px solid rgba(43,227,194,.4);background:rgba(43,227,194,.08);
}
.article-content blockquote{
  margin:0 0 1.4em;padding:18px 22px;border-left:3px solid var(--primary);
  border-radius:0 var(--radius-card) var(--radius-card) 0;
  background:var(--glass);color:var(--text-2);
}
.article-content img{border-radius:var(--radius-img);margin:22px 0;box-shadow:var(--shadow-1)}
.article-content a{color:var(--primary);border-bottom:1px dashed rgba(43,227,194,.45)}
.article-content a:hover{color:var(--primary-light)}
.article-content code{
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  font-size:14px;background:#05080F;border:1px solid var(--line);
  padding:2px 6px;border-radius:6px;color:var(--primary-light);
}
.article-content pre{
  background:#05080F;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:18px;overflow-x:auto;margin:0 0 1.4em;
}
.article-content pre code{background:none;border:0;padding:0}
.article-content table{
  width:100%;border-collapse:collapse;margin:0 0 1.4em;font-size:15px;
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;display:block;overflow-x:auto;
}
.article-content thead{background:rgba(43,227,194,.08)}
.article-content th,.article-content td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}
.article-content th{color:var(--text);font-weight:600}
.article-content td{color:var(--text-2)}
.article-content hr{border:0;height:1px;background:var(--line);margin:36px 0}
/* ===== 文末区块 ===== */
.after-article{margin-top:44px;padding-top:32px;border-top:1px solid var(--line)}
.block-title{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px}
.block-title h2{font-size:20px;color:var(--text)}
.tag-list{display:flex;flex-wrap:wrap;gap:10px}
.tag-list span{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  font-size:13px;color:#BDAEFF;background:rgba(124,91,255,.14);border:1px solid rgba(124,91,255,.26);
}
.jump-cards{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:26px}
.jump-card{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:18px 20px;border-radius:var(--radius-card);
  background:var(--glass);border:1px solid var(--glass-border);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.jump-card:hover{transform:translateY(-4px);border-color:rgba(43,227,194,.4);box-shadow:var(--shadow-2)}
.jump-card span.k{font-size:12px;color:var(--text-3);letter-spacing:.04em;display:block;margin-bottom:4px}
.jump-card strong{font-size:15px;color:var(--text);font-weight:600}
.jump-card svg{width:18px;height:18px;color:var(--primary);flex-shrink:0;transition:transform .2s ease}
.jump-card:hover svg{transform:translateX(3px)}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:22px}
.rel-card{
  display:flex;flex-direction:column;border-radius:var(--radius-card);overflow:hidden;
  background:var(--glass);border:1px solid var(--glass-border);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(43,227,194,.4);box-shadow:var(--shadow-2)}
.rel-card .thumb{aspect-ratio:16/9;overflow:hidden;position:relative;background:#0B1220}
.rel-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.rel-card:hover .thumb img{transform:scale(1.05)}
.rel-card .thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(7,11,20,.75) 100%)}
.rel-card .rc-body{padding:16px 18px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
.rel-card h3{font-size:16px;line-height:1.5}
.rel-card p{font-size:13px;color:var(--text-3);line-height:1.7}
.rel-card .rc-foot{margin-top:auto;display:flex;align-items:center;gap:8px;font-size:12px;color:var(--primary)}
.back-row{display:flex;justify-content:center;margin-top:32px}
/* ===== 侧栏 ===== */
.side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--glass);border:1px solid var(--glass-border);
  border-radius:var(--radius-panel);padding:22px 22px 24px;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-1);
}
.side-card h3{font-size:14px;color:var(--primary);letter-spacing:.03em;margin-bottom:14px}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:320px;overflow-y:auto}
.toc-list a{
  display:block;padding:9px 12px;font-size:14px;color:var(--text-2);
  border-left:2px solid transparent;border-radius:0 8px 8px 0;line-height:1.5;
}
.toc-list a:hover{color:var(--text);background:rgba(255,255,255,.04)}
.toc-list a.current{color:var(--primary);border-left-color:var(--primary);background:rgba(43,227,194,.08)}
.toc-empty{font-size:13px;color:var(--text-3)}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag-cloud a{
  padding:6px 12px;border-radius:999px;font-size:12px;color:var(--text-2);
  background:rgba(255,255,255,.05);border:1px solid var(--line);
}
.tag-cloud a:hover{color:var(--primary);border-color:rgba(43,227,194,.4)}
.cat-links{display:flex;flex-direction:column;gap:10px}
.cat-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:13px 14px;border-radius:var(--radius-btn);font-size:14px;color:var(--text-2);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
.cat-links a:hover{color:var(--primary);border-color:rgba(43,227,194,.4);transform:translateX(3px)}
.cat-links a svg{width:16px;height:16px}
.side-note{font-size:13px;line-height:1.75;color:var(--text-3)}
.to-top{
  display:flex;align-items:center;justify-content:center;gap:8px;height:44px;width:100%;
  border-radius:var(--radius-btn);border:1px solid var(--glass-border);background:var(--glass);
  font-size:14px;color:var(--text-2);transition:border-color .2s ease,color .2s ease;
}
.to-top:hover{border-color:var(--primary);color:var(--primary)}
.to-top svg{width:16px;height:16px}
/* ===== 空态 ===== */
.empty{
  display:flex;flex-direction:column;align-items:center;text-align:center;gap:12px;
  padding:64px 28px;border-radius:var(--radius-panel);
  background:var(--glass);border:1px solid var(--glass-border);
}
.empty svg{width:44px;height:44px;color:rgba(43,227,194,.4)}
.empty strong{font-size:18px}
.empty p{font-size:14px;color:var(--text-3);max-width:420px}
/* ===== CTA ===== */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,rgba(43,227,194,.1),rgba(255,122,69,.06)),var(--panel);
  border:1px solid var(--glass-border);border-radius:var(--radius-panel);
  padding:38px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--shadow-1);
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:36px 36px;opacity:.5;
}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:10px;position:relative}
.cta-band p{font-size:15px;color:var(--text-2);max-width:560px;position:relative}
.cta-actions{display:flex;gap:12px;position:relative;flex-shrink:0}
.cta-wrap{padding:0 0 88px}
/* ===== 页脚 ===== */
.site-foot{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,18,32,.6),rgba(7,11,20,.96));
  padding:64px 0 26px;position:relative;z-index:1;
}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.3fr;gap:40px}
.foot-brand .logo{margin-bottom:16px}
.foot-brand p{font-size:14px;line-height:1.85;color:var(--text-3);max-width:340px}
.foot-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.foot-col h4{font-size:14px;color:var(--primary);letter-spacing:.04em;margin-bottom:16px}
.foot-col ul{display:flex;flex-direction:column;gap:11px}
.foot-col ul li{font-size:14px;color:var(--text-3);line-height:1.7}
.foot-col ul a{font-size:14px;color:var(--text-2)}
.foot-col ul a:hover{color:var(--primary)}
.foot-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
}
.foot-bottom p{font-size:13px;color:var(--text-3)}
.foot-bottom .links{display:flex;gap:18px;flex-wrap:wrap}
.foot-bottom .links a{font-size:13px;color:var(--text-3)}
.foot-bottom .links a:hover{color:var(--primary)}
/* ===== 响应式 ===== */
@media (max-width:1279px){
  .layout{grid-template-columns:minmax(0,1fr) 300px;gap:32px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav-menu{display:none}
  .search{display:none}
  .nav-toggle{display:block}
  .layout{grid-template-columns:1fr;padding:40px 0 64px}
  .side{position:static}
  .article-body{padding:28px 24px 32px}
  .rel-grid{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .nav{height:64px;gap:12px}
  .nav-tools .btn-ghost{display:none}
  .page-hero{padding:30px 0 28px}
  .page-hero h1{font-size:clamp(24px,6vw,30px)}
  .lede{font-size:15px;padding:14px 16px}
  .article-body{padding:22px 18px 26px;border-radius:var(--radius-card)}
  .article-content h2{margin-top:36px}
  .article-content table{font-size:14px}
  .jump-cards{grid-template-columns:1fr}
  .rel-grid{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 22px}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn{width:100%}
  .cta-wrap{padding-bottom:64px}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:480px){
  .logo{font-size:15px}
  .meta-row{gap:8px;font-size:13px}
  .crumb .now{max-width:180px}
}

/* roulang page: category1 */
:root{
  --bg:#070B14;
  --panel:#0B1220;
  --card:#111A2B;
  --primary:#2BE3C2;
  --primary-d:#14A88F;
  --primary-l:#7BF4E0;
  --accent:#FF7A45;
  --accent-d:#D95A28;
  --purple:#7C5BFF;
  --text:#EAF2FF;
  --text-2:#9FB0C8;
  --text-3:#6B7C96;
  --ok:#38D39F;
  --warn:#FFB020;
  --err:#FF5C6C;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.06);
  --glass-line:rgba(255,255,255,.12);
  --r-card:16px;
  --r-panel:20px;
  --r-btn:12px;
  --r-img:14px;
  --sh-1:0 8px 24px rgba(0,0,0,.35);
  --sh-2:0 16px 40px rgba(0,0,0,.45);
  --sh-3:0 24px 64px rgba(0,0,0,.55);
  --glow:0 0 0 1px rgba(43,227,194,.35), 0 8px 28px rgba(43,227,194,.22);
  --glow-hover:0 0 0 1px rgba(43,227,194,.6), 0 12px 36px rgba(43,227,194,.34);
  --container:1240px;
  --zh:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--zh);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:64px 64px;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease,opacity .2s ease}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;position:relative;z-index:1}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;white-space:nowrap;
  transition:transform .18s ease,box-shadow .22s ease,background-color .22s ease,border-color .22s ease,color .22s ease;
}
.btn-primary{
  background:linear-gradient(135deg,#2BE3C2 0%,#14A88F 100%);
  color:#06120F;box-shadow:var(--glow);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:var(--glow-hover)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(43,227,194,.5),0 4px 14px rgba(43,227,194,.2)}
.btn-ghost{
  background:var(--glass);border-color:var(--glass-line);color:var(--text);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.btn-ghost:hover{border-color:rgba(43,227,194,.55);color:var(--primary-l)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--primary);
  font-size:14px;font-weight:600;background:none;padding:0;height:auto;
}
.btn-link .arw{transition:transform .2s ease}
.btn-link:hover .arw{transform:translateX(3px)}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  font-size:12px;letter-spacing:.02em;line-height:1.6;font-weight:600;
}
.badge-line{border:1px solid rgba(43,227,194,.35);color:var(--primary-l);background:rgba(43,227,194,.14)}
.badge-purple{background:rgba(124,91,255,.14);color:#B7A5FF}
.badge-accent{background:var(--accent);color:#1A0C05}

/* ---------- 导航 ---------- */
.site-head{
  position:sticky;top:0;z-index:70;
  background:rgba(7,11,20,.72);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;
  transition:background-color .25s ease,border-color .25s ease;
}
.site-head.is-solid{background:rgba(7,11,20,.9);border-bottom-color:var(--line)}
.nav{display:flex;align-items:center;gap:28px;height:70px}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-size:17px;font-weight:700;letter-spacing:.01em;color:var(--text);
  flex:0 0 auto;
}
.logo:hover{color:var(--primary-l)}
.logo-mark{
  width:28px;height:28px;border-radius:9px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(43,227,194,.6);
  background:linear-gradient(135deg,rgba(43,227,194,.28),rgba(20,168,143,.1));
  box-shadow:0 0 14px rgba(43,227,194,.32);
}
.logo-mark i{
  width:10px;height:10px;border-radius:3px;display:block;
  background:linear-gradient(135deg,var(--primary-l),var(--primary-d));
}
.nav-menu{display:flex;align-items:center;gap:6px;margin-right:auto}
.nav-menu a{
  position:relative;padding:8px 12px;font-size:15px;color:var(--text-2);border-radius:8px;
}
.nav-menu a:hover{color:var(--primary-l);background:rgba(255,255,255,.04)}
.nav-menu a.active{color:var(--primary)}
.nav-menu a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 10px rgba(43,227,194,.7);
}
.nav-tools{display:flex;align-items:center;gap:12px}
.search{
  display:flex;align-items:center;gap:8px;
  width:220px;height:38px;padding:0 12px;
  background:var(--glass);border:1px solid var(--glass-line);border-radius:var(--r-btn);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search svg{width:16px;height:16px;flex:0 0 auto;fill:none;stroke:var(--text-3);stroke-width:2;stroke-linecap:round}
.search input{
  width:100%;border:0;background:transparent;color:var(--text);font-size:14px;outline:none;
}
.search input::placeholder{color:var(--text-3)}
.search:focus-within{border-color:rgba(43,227,194,.6);box-shadow:0 0 0 3px rgba(43,227,194,.14)}
.search:focus-within svg{stroke:var(--primary)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--glass-line);background:var(--glass);
  align-items:center;justify-content:center;
}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;background:var(--text);border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;
  transition:transform .24s ease;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
body.nav-open .nav-toggle span{background:transparent}
body.nav-open .nav-toggle span::before{transform:translateY(6px) rotate(45deg)}
body.nav-open .nav-toggle span::after{transform:translateY(-6px) rotate(-45deg)}
.nav-backdrop{
  position:fixed;inset:0;background:rgba(0,0,0,.6);opacity:0;visibility:hidden;
  transition:opacity .24s ease,visibility .24s ease;z-index:65;
}
body.nav-open .nav-backdrop{opacity:1;visibility:visible}
.nav-drawer-extra{display:none}

/* ---------- 分类横幅 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background-image:linear-gradient(90deg,rgba(7,11,20,.96) 0%,rgba(7,11,20,.78) 52%,rgba(7,11,20,.92) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:-80px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(43,227,194,.2) 0%,rgba(43,227,194,0) 68%);
  pointer-events:none;
}
.hero-inner{
  display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center;
  padding:72px 0 80px;position:relative;z-index:2;
}
.crumbs{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-3);margin-bottom:20px;flex-wrap:wrap}
.crumbs a:hover{color:var(--primary-l)}
.crumbs .sep{color:var(--text-3)}
.crumbs .now{color:var(--primary)}
.hero-copy h1{font-size:clamp(32px,4.2vw,50px);line-height:1.15;letter-spacing:-.01em}
.hero-copy .lead{
  margin-top:20px;font-size:18px;line-height:1.75;color:var(--text-2);max-width:560px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;font-size:14px;color:var(--text-3)}
.hero-points li{position:relative;padding-left:16px}
.hero-points li::before{
  content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:2px;background:var(--primary);opacity:.85;
}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border:1px solid var(--glass-line);
  box-shadow:var(--sh-3);
  filter:saturate(1.03);
}
.hero-media::before{
  content:"";position:absolute;inset:0;border-radius:var(--r-img);pointer-events:none;
  background:linear-gradient(180deg,rgba(7,11,20,.06) 0%,rgba(7,11,20,.62) 100%);
}
.media-tag{
  position:absolute;left:18px;bottom:18px;
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;font-size:13px;font-weight:600;
  background:rgba(11,18,32,.82);border:1px solid var(--glass-line);color:var(--primary-l);
  backdrop-filter:blur(10px);
}
.media-tag i{width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary);display:block}

/* ---------- 速览条 ---------- */
.snapshot{
  margin-top:-34px;position:relative;z-index:3;
}
.snap-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  background:rgba(17,26,43,.86);border:1px solid var(--glass-line);border-radius:var(--r-panel);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--sh-2);overflow:hidden;
}
.snap-item{padding:26px 28px;border-right:1px solid var(--line);position:relative}
.snap-item:last-child{border-right:0}
.snap-item::before{
  content:"";position:absolute;left:0;top:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.25),transparent);
}
.snap-num{
  font-size:30px;font-weight:700;font-variant-numeric:tabular-nums;
  font-family:Barlow,"Segoe UI",var(--zh);
  color:var(--primary);letter-spacing:.01em;line-height:1.1;
}
.snap-label{margin-top:8px;font-size:14px;color:var(--text-2)}
.snap-hint{margin-top:6px;font-size:12px;color:var(--text-3)}

/* ---------- 板块基础 ---------- */
.section{padding:96px 0}
.section-alt{background:linear-gradient(180deg,rgba(11,18,32,.65) 0%,rgba(7,11,20,0) 100%)}
.sec-head{max-width:720px;margin-bottom:48px}
.sec-head h2{font-size:clamp(24px,3vw,34px)}
.sec-head p{margin-top:14px;font-size:15px;color:var(--text-2)}
.sec-tag{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:16px;
  font-size:12px;letter-spacing:.08em;color:var(--primary-l);font-weight:600;
}
.sec-tag::before{content:"";width:22px;height:1px;background:var(--primary);display:block}

/* ---------- 图文交替 ---------- */
.feature-row{
  display:grid;grid-template-columns:6fr 6fr;gap:56px;align-items:center;
  padding:44px 0;
}
.feature-row + .feature-row{border-top:1px solid var(--line)}
.feature-row.reverse .feature-text{order:2}
.feature-row.reverse .feature-media{order:1}
.feature-media{position:relative}
.feature-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border:1px solid var(--glass-line);box-shadow:var(--sh-2);
}
.feature-media::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-img);pointer-events:none;
  background:linear-gradient(160deg,rgba(7,11,20,.05) 0%,rgba(7,11,20,.55) 100%);
}
.feature-index{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:44px;height:32px;padding:0 12px;margin-bottom:18px;
  border:1px solid rgba(255,122,69,.5);border-radius:999px;
  color:var(--accent);font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;
  background:rgba(255,122,69,.08);
}
.feature-text h2{font-size:clamp(22px,2.4vw,30px)}
.feature-text p{margin-top:16px;color:var(--text-2);font-size:15.5px;line-height:1.8}
.check-list{margin-top:24px;display:grid;gap:12px}
.check-list li{
  position:relative;padding-left:26px;font-size:15px;color:var(--text);line-height:1.7;
}
.check-list li::before{
  content:"";position:absolute;left:0;top:8px;width:9px;height:9px;border-radius:2px;
  border:2px solid var(--primary);
}
.check-list li span{color:var(--text-2)}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start}
.faq{display:grid;gap:12px}
.faq-item{
  background:var(--glass);border:1px solid var(--glass-line);border-radius:var(--r-card);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  overflow:hidden;transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item:hover{border-color:rgba(43,227,194,.35)}
.faq-item.open{border-color:rgba(43,227,194,.5);box-shadow:0 12px 34px rgba(0,0,0,.42)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--text);
}
.faq-q:hover{color:var(--primary-l)}
.faq-icon{position:relative;flex:0 0 auto;width:18px;height:18px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--text-2);border-radius:2px;
  transform:translate(-50%,-50%);transition:transform .26s ease,background-color .26s ease;
}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px}
.faq-item.open .faq-icon::before{background:var(--primary)}
.faq-item.open .faq-icon::after{transform:translate(-50%,-50%) rotate(45deg);background:var(--primary)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{padding:0 22px 22px;font-size:14.5px;line-height:1.85;color:var(--text-2)}

/* ---------- CTA ---------- */
.cta-band{padding:0 0 96px}
.cta-box{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  padding:44px 46px;border-radius:var(--r-panel);
  background:linear-gradient(135deg,rgba(43,227,194,.12) 0%,rgba(11,18,32,.9) 58%,rgba(255,122,69,.1) 100%);
  border:1px solid var(--glass-line);
  box-shadow:var(--sh-2);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.cta-box::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:40px 40px;
}
.cta-text{position:relative;z-index:1;max-width:640px}
.cta-text h2{font-size:clamp(22px,2.6vw,32px)}
.cta-text p{margin-top:12px;color:var(--text-2);font-size:15px}
.cta-actions{position:relative;z-index:1;display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-foot{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,18,32,.9) 0%,rgba(7,11,20,1) 100%);
  padding:72px 0 28px;
}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:44px}
.foot-brand .logo{margin-bottom:18px}
.foot-brand p{font-size:14px;color:var(--text-2);line-height:1.85;max-width:340px}
.foot-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.foot-col h4{font-size:14px;color:var(--primary);margin-bottom:18px;letter-spacing:.02em}
.foot-col ul{display:grid;gap:12px}
.foot-col a{font-size:14px;color:var(--text-2)}
.foot-col a:hover{color:var(--primary-l)}
.foot-contact li{font-size:14px;color:var(--text-2);line-height:1.7}
.foot-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
}
.foot-bottom p{font-size:13px;color:var(--text-3)}
.foot-bottom .links{display:flex;gap:20px;flex-wrap:wrap}
.foot-bottom .links a{font-size:13px;color:var(--text-3)}
.foot-bottom .links a:hover{color:var(--primary-l)}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav{gap:16px}
  .nav-menu{
    position:fixed;top:0;right:0;height:100%;width:78vw;max-width:320px;
    flex-direction:column;align-items:stretch;gap:4px;
    padding:88px 24px 28px;margin:0;
    background:rgba(11,18,32,.96);
    backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
    border-left:1px solid var(--glass-line);
    transform:translateX(100%);opacity:0;visibility:hidden;
    transition:transform .24s ease,opacity .24s ease,visibility .24s ease;
    z-index:68;overflow-y:auto;
  }
  body.nav-open .nav-menu{transform:none;opacity:1;visibility:visible}
  .nav-menu a{padding:14px 12px;font-size:16px;border-radius:10px}
  .nav-menu a.active::after{left:12px;right:auto;width:60%;bottom:8px}
  .nav-tools .search{display:none}
  .nav-tools .btn-ghost,.nav-tools .btn-primary{display:none}
  .nav-toggle{display:flex}
  .nav-drawer-extra{display:grid;gap:12px;margin-top:20px;padding-top:20px;border-top:1px solid var(--line)}
  .nav-drawer-extra .btn{width:100%}
  .hero-inner{grid-template-columns:1fr;gap:36px;padding:56px 0 68px}
  .hero-copy .lead{font-size:16.5px}
  .snapshot{margin-top:0;padding-top:36px}
  .snap-grid{grid-template-columns:repeat(2,1fr)}
  .snap-item{border-bottom:1px solid var(--line)}
  .snap-item:nth-child(2n){border-right:0}
  .snap-item:nth-last-child(-n+2){border-bottom:0}
  .section{padding:72px 0}
  .feature-row{grid-template-columns:1fr;gap:28px;padding:36px 0}
  .feature-row.reverse .feature-text{order:1}
  .feature-row.reverse .feature-media{order:2}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .cta-box{flex-direction:column;align-items:flex-start;padding:34px 28px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 200px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .nav{height:64px}
  .logo{font-size:16px}
  .section{padding:56px 0}
  .sec-head{margin-bottom:32px}
  .hero-inner{padding:44px 0 56px}
  .hero-actions{gap:12px}
  .hero-actions .btn{flex:1 1 100%}
  .snap-item{padding:20px 18px}
  .snap-num{font-size:26px}
  .cta-band{padding:0 0 64px}
  .foot-grid{grid-template-columns:1fr;gap:32px}
  .foot-bottom{margin-top:36px;flex-direction:column;align-items:flex-start}
  .faq-q{padding:18px 18px;font-size:15px}
  .faq-a p{padding:0 18px 18px}
}
@media (max-width:480px){
  .hero-copy h1{font-size:28px}
  .hero-points{flex-direction:column;gap:8px}
  .snap-grid{grid-template-columns:1fr}
  .snap-item{border-right:0;border-bottom:1px solid var(--line)}
  .snap-item:last-child{border-bottom:0}
}

/* roulang page: category3 */
:root{
  --bg:#070B14;
  --panel:#0B1220;
  --card:#111A2B;
  --primary:#2BE3C2;
  --primary-d:#14A88F;
  --primary-l:#7BF4E0;
  --accent:#FF7A45;
  --accent-d:#D95A28;
  --third:#7C5BFF;
  --text:#EAF2FF;
  --muted:#9FB0C8;
  --weak:#6B7C96;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.06);
  --glass-bd:rgba(255,255,255,.12);
  --ok:#38D39F;
  --warn:#FFB020;
  --err:#FF5C6C;
  --r-card:16px;
  --r-glass:20px;
  --r-btn:12px;
  --r-img:14px;
  --sh-1:0 8px 24px rgba(0,0,0,.35);
  --sh-2:0 16px 40px rgba(0,0,0,.45);
  --sh-3:0 24px 64px rgba(0,0,0,.55);
  --glow:0 0 0 1px rgba(43,227,194,.35), 0 8px 28px rgba(43,227,194,.22);
  --glow-2:0 0 0 1px rgba(43,227,194,.6), 0 12px 36px rgba(43,227,194,.34);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 12%,rgba(0,0,0,.85),transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 50% 12%,rgba(0,0,0,.85),transparent 72%);
}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em}
p{margin:0}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
ul,ol{margin:0;padding:0;list-style:none}
button,input{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
::selection{background:rgba(43,227,194,.3)}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}
main{position:relative;z-index:1}

/* ---------- 导航 ---------- */
.site-head{
  position:sticky;top:0;z-index:50;
  background:rgba(7,11,20,.72);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease;
}
.site-head.scrolled{background:rgba(7,11,20,.9);border-bottom-color:var(--line)}
.nav{display:flex;align-items:center;gap:24px;height:70px}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-size:17px;font-weight:700;letter-spacing:.01em;white-space:nowrap;
}
.logo-mark{
  width:28px;height:28px;border-radius:9px;flex:0 0 28px;
  background:linear-gradient(135deg,var(--primary),var(--primary-d));
  box-shadow:0 0 0 1px rgba(43,227,194,.55),0 6px 18px rgba(43,227,194,.3);
  display:grid;place-items:center;
}
.logo-mark i{
  width:10px;height:10px;border-radius:3px;display:block;
  background:var(--bg);
  box-shadow:inset 0 0 0 2px rgba(7,11,20,.9);
}
.nav-menu{display:flex;align-items:center;gap:4px;margin-right:auto}
.nav-menu > a{
  position:relative;
  padding:9px 14px;border-radius:10px;
  font-size:15px;color:var(--muted);
  transition:color .2s ease,background .2s ease;
}
.nav-menu > a:hover{color:var(--primary);background:rgba(43,227,194,.07)}
.nav-menu > a.active{color:var(--primary)}
.nav-menu > a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--primary-d));
  box-shadow:0 0 12px rgba(43,227,194,.6);
}
.nav-tools{display:flex;align-items:center;gap:10px}
.search{
  display:flex;align-items:center;gap:8px;
  width:220px;height:38px;padding:0 12px;
  background:var(--glass);border:1px solid var(--glass-bd);border-radius:var(--r-btn);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search svg{width:16px;height:16px;flex:0 0 16px;fill:none;stroke:var(--weak);stroke-width:1.8;stroke-linecap:round}
.search input{
  width:100%;border:0;background:none;font-size:14px;color:var(--text);
}
.search input::placeholder{color:var(--weak)}
.search input:focus{outline:none}
.search:focus-within{border-color:rgba(43,227,194,.6);box-shadow:0 0 0 3px rgba(43,227,194,.14)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-d));
  color:#06120F;box-shadow:var(--glow);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:var(--glow-2)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(43,227,194,.45),0 4px 14px rgba(43,227,194,.2)}
.btn-ghost{
  background:var(--glass);border-color:var(--glass-bd);color:var(--text);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.btn-ghost:hover{border-color:rgba(43,227,194,.55);color:var(--primary);transform:translateY(-1px)}
.btn-disabled,.btn[disabled]{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--glass-bd);background:var(--glass);
  position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:2px;border-radius:2px;background:var(--text);
  transform:translateX(-50%);transition:.22s ease;
}
.nav-toggle span{top:21px}
.nav-toggle span::before,.nav-toggle span::after{content:"";left:0;transform:none}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
body.nav-open .nav-toggle span{background:var(--primary)}
body.nav-open .nav-toggle span::before{top:0;transform:rotate(45deg)}
body.nav-open .nav-toggle span::after{top:0;transform:rotate(-45deg)}
.nav-backdrop{
  position:fixed;inset:0;background:rgba(0,0,0,.6);opacity:0;pointer-events:none;
  transition:opacity .24s ease;z-index:59;
}
body.nav-open .nav-backdrop{opacity:1;pointer-events:auto}
.search-drawer,.drawer-btn{display:none}

/* ---------- 面包屑 ---------- */
.crumb{padding:26px 0 0;font-size:14px;color:var(--muted)}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb li{display:inline-flex;align-items:center;gap:8px}
.crumb li + li::before{content:"/";color:var(--weak)}
.crumb a:hover{color:var(--primary)}
.crumb [aria-current]{color:var(--primary)}

/* ---------- 页头横幅 ---------- */
.page-hero{padding:28px 0 8px}
.hero-panel{
  position:relative;overflow:hidden;
  border-radius:22px;border:1px solid var(--glass-bd);
  background:
    linear-gradient(120deg,rgba(7,11,20,.96) 0%,rgba(7,11,20,.86) 46%,rgba(7,11,20,.62) 100%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  box-shadow:var(--sh-2);
  display:grid;grid-template-columns:1.35fr .95fr;gap:32px;
  padding:44px 40px;
}
.hero-panel::after{
  content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(43,227,194,.22),transparent 66%);
  pointer-events:none;
}
.hero-copy{position:relative;z-index:1}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(124,91,255,.16);color:#C7B8FF;
  font-size:12px;letter-spacing:.02em;margin-bottom:18px;
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--third);display:block}
.page-hero h1{
  font-size:clamp(30px,4.2vw,50px);line-height:1.16;letter-spacing:-.01em;
  max-width:16em;
}
.page-hero h1 em{font-style:normal;color:var(--primary)}
.hero-sub{margin-top:16px;font-size:18px;color:var(--muted);max-width:44em}
.hero-acts{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:22px;
  font-size:14px;color:var(--weak);
}
.hero-meta span{display:inline-flex;align-items:center;gap:8px}
.hero-meta span::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--primary);display:block}
.hero-figure{
  position:relative;z-index:1;align-self:center;
  border-radius:20px;overflow:hidden;border:1px solid var(--glass-bd);
  background:var(--panel);box-shadow:var(--sh-2);
  transform:rotate(-2deg);
}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;opacity:.94}
.hero-figure figcaption{
  padding:14px 18px;font-size:13px;color:var(--muted);
  border-top:1px solid var(--line);background:rgba(11,18,32,.9);
}

/* ---------- 速览条 ---------- */
.speed{padding:48px 0 0}
.speed-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
}
.speed-item{
  padding:22px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--glass-bd);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.speed-item:hover{transform:translateY(-3px);border-color:rgba(43,227,194,.4);box-shadow:var(--sh-2)}
.speed-item strong{
  display:block;font-size:26px;font-weight:700;color:var(--primary);
  font-variant-numeric:tabular-nums;letter-spacing:.01em;
}
.speed-item span{display:block;margin-top:6px;font-size:13px;color:var(--muted)}

/* ---------- 攻略主体：目录 + 长文 ---------- */
.guide{padding:72px 0 0}
.guide-layout{display:grid;grid-template-columns:264px minmax(0,1fr);gap:44px;align-items:start}
.toc{
  position:sticky;top:96px;
  padding:22px 20px;border-radius:var(--r-glass);
  background:var(--glass);border:1px solid var(--glass-bd);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--sh-1);
}
.toc h2{font-size:14px;color:var(--primary);letter-spacing:.02em;margin-bottom:14px;font-weight:600}
.toc ol{display:flex;flex-direction:column;gap:2px}
.toc a{
  display:block;padding:9px 12px;border-radius:10px;
  font-size:14px;color:var(--muted);border-left:2px solid transparent;
  transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.toc a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.toc a.active{color:var(--primary);border-left-color:var(--primary);background:rgba(43,227,194,.08)}
.toc-tip{margin-top:16px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--weak);line-height:1.7}
.toc-mobile{display:none;margin-bottom:26px}
.toc-mobile summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 18px;border-radius:var(--r-btn);
  background:var(--glass);border:1px solid var(--glass-bd);
  font-size:15px;font-weight:600;
}
.toc-mobile summary::-webkit-details-marker{display:none}
.toc-mobile summary::after{content:"+";color:var(--primary);font-size:18px;line-height:1}
.toc-mobile[open] summary::after{content:"−"}
.toc-mobile ol{
  display:flex;flex-direction:column;gap:2px;margin-top:10px;padding:12px;
  border-radius:var(--r-btn);background:var(--glass);border:1px solid var(--glass-bd);
}
.toc-mobile a{display:block;padding:9px 10px;border-radius:8px;font-size:14px;color:var(--muted)}
.toc-mobile a:hover{color:var(--primary);background:rgba(43,227,194,.08)}

.doc{display:flex;flex-direction:column;gap:56px}
.doc-sec{scroll-margin-top:96px}
.doc-sec h2{
  font-size:clamp(22px,2.5vw,30px);line-height:1.3;margin-bottom:16px;
  display:flex;align-items:center;gap:12px;
}
.doc-sec h2::before{
  content:"";width:4px;height:26px;border-radius:3px;flex:0 0 4px;
  background:linear-gradient(180deg,var(--primary),var(--primary-d));
  box-shadow:0 0 14px rgba(43,227,194,.5);
}
.doc-sec h3{font-size:19px;font-weight:600;color:var(--text);margin:22px 0 10px}
.sec-body{display:grid;gap:26px;align-items:start}
.sec-body.media-right{grid-template-columns:minmax(0,1fr) 236px}
.sec-body.media-left{grid-template-columns:236px minmax(0,1fr)}
.sec-body.media-left .sec-fig{order:-1}
.sec-text p{color:var(--muted);margin-bottom:14px;font-size:15.5px;line-height:1.85}
.sec-text p strong{color:var(--text);font-weight:600}
.sec-fig{
  border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--line);background:var(--panel);box-shadow:var(--sh-1);
  position:relative;
}
.sec-fig img{width:100%;aspect-ratio:4/3;object-fit:cover;opacity:.92;transition:transform .35s ease}
.sec-fig:hover img{transform:scale(1.04)}
.sec-fig span{
  position:absolute;left:0;right:0;bottom:0;padding:10px 12px;
  font-size:12px;color:var(--muted);
  background:linear-gradient(180deg,transparent,rgba(5,8,15,.92));
}
.checklist{
  margin-top:18px;padding:20px 22px;border-radius:var(--r-glass);
  background:rgba(255,255,255,.045);border:1px solid var(--glass-bd);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
}
.checklist strong{display:block;font-size:14px;color:var(--primary);margin-bottom:10px;letter-spacing:.02em}
.checklist li{
  position:relative;padding-left:20px;margin-bottom:8px;
  font-size:14.5px;color:var(--muted);line-height:1.75;
}
.checklist li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:2px;
  border:1.5px solid var(--primary);background:rgba(43,227,194,.18);
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.tag{
  display:inline-flex;align-items:center;padding:5px 12px;border-radius:999px;
  font-size:12px;letter-spacing:.02em;
  background:rgba(124,91,255,.16);color:#C7B8FF;
}
.tag-cyan{background:rgba(43,227,194,.14);color:var(--primary-l)}
.tag-orange{background:rgba(255,122,69,.16);color:#FFB79A}

/* ---------- 相关分类跳转卡 ---------- */
.jump{padding:72px 0 0}
.jump-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:26px}
.jump-head h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3}
.jump-head p{margin-top:10px;font-size:14px;color:var(--muted);max-width:46em}
.jump-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.jump-card{
  display:flex;flex-direction:column;gap:14px;
  padding:24px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--glass-bd);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--sh-1);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.jump-card:hover{transform:translateY(-4px);border-color:rgba(43,227,194,.4);box-shadow:var(--sh-2)}
.jump-card h3{font-size:19px;line-height:1.4}
.jump-card p{font-size:14px;color:var(--muted);line-height:1.75}
.jump-link{
  margin-top:auto;display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--primary);
}
.jump-link svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .22s ease}
.jump-card:hover .jump-link svg{transform:translateX(4px)}

/* ---------- FAQ ---------- */
.faq{padding:72px 0 0}
.faq-head h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3}
.faq-head p{margin-top:10px;font-size:14px;color:var(--muted)}
.faq-list{margin-top:26px;display:grid;grid-template-columns:1fr 1fr;gap:14px;align-items:start}
.faq-col{display:flex;flex-direction:column;gap:14px}
.faq-item{
  border-radius:var(--r-card);border:1px solid var(--glass-bd);
  background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  overflow:hidden;transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item.open{border-color:rgba(43,227,194,.4);box-shadow:var(--sh-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;text-align:left;font-size:16px;font-weight:600;color:var(--text);
  min-height:44px;
}
.faq-q i{
  flex:0 0 22px;width:22px;height:22px;border-radius:50%;
  border:1px solid var(--glass-bd);position:relative;transition:.25s ease;
}
.faq-q i::before,.faq-q i::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--muted);border-radius:2px;
  transform:translate(-50%,-50%);transition:background .25s ease;
}
.faq-q i::before{width:10px;height:1.6px}
.faq-q i::after{width:1.6px;height:10px}
.faq-item.open .faq-q{color:var(--primary)}
.faq-item.open .faq-q i{border-color:rgba(43,227,194,.6);transform:rotate(135deg)}
.faq-item.open .faq-q i::before,.faq-item.open .faq-q i::after{background:var(--primary)}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .3s ease;
}
.faq-a p{padding:0 20px 20px;font-size:14.5px;color:var(--muted);line-height:1.8}

/* ---------- CTA ---------- */
.cta{padding:76px 0 96px}
.cta-band{
  position:relative;overflow:hidden;
  border-radius:22px;border:1px solid var(--glass-bd);
  background:linear-gradient(135deg,rgba(43,227,194,.1),rgba(255,122,69,.06)),var(--panel);
  box-shadow:var(--sh-2);
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:40px 42px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:42px 42px;opacity:.7;
}
.cta-copy{position:relative;z-index:1;max-width:48em}
.cta-copy h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3}
.cta-copy p{margin-top:12px;font-size:15px;color:var(--muted)}
.cta-acts{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-foot{
  position:relative;z-index:1;
  background:var(--panel);border-top:1px solid var(--line);
  padding:64px 0 0;
}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px}
.foot-brand p{margin-top:16px;font-size:14px;color:var(--muted);max-width:34em;line-height:1.8}
.foot-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.badge{
  display:inline-flex;align-items:center;padding:5px 12px;border-radius:999px;
  font-size:12px;letter-spacing:.02em;
}
.badge-line{
  background:rgba(43,227,194,.1);color:var(--primary-l);border:1px solid rgba(43,227,194,.25);
}
.foot-col h4{font-size:14px;color:var(--primary);font-weight:600;letter-spacing:.02em;margin-bottom:16px}
.foot-col ul{display:flex;flex-direction:column;gap:10px}
.foot-col a{font-size:14px;color:var(--muted);transition:color .2s ease}
.foot-col a:hover{color:var(--primary)}
.foot-contact li{font-size:14px;color:var(--muted);line-height:1.7}
.foot-bottom{
  margin-top:52px;padding:22px 0;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.foot-bottom p{font-size:13px;color:var(--weak)}
.foot-bottom .links{display:flex;gap:18px}
.foot-bottom .links a{font-size:13px;color:var(--weak)}
.foot-bottom .links a:hover{color:var(--primary)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .hero-panel{grid-template-columns:1.3fr 1fr;padding:40px 34px}
  .guide-layout{grid-template-columns:232px minmax(0,1fr);gap:34px}
}
@media (max-width:1080px){
  .nav-menu{
    position:fixed;top:0;right:0;height:100vh;width:78vw;max-width:320px;
    margin:0;padding:92px 22px 28px;flex-direction:column;align-items:stretch;gap:6px;
    background:rgba(11,18,32,.95);
    backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
    border-left:1px solid var(--glass-bd);
    transform:translateX(104%);transition:transform .24s ease;z-index:60;
    overflow-y:auto;
  }
  body.nav-open .nav-menu{transform:translateX(0)}
  .nav-menu > a{padding:13px 14px;font-size:16px;color:var(--text)}
  .nav-menu > a.active::after{left:14px;right:auto;width:52px;bottom:8px}
  .nav-tools .search,.nav-tools > .btn{display:none}
  .nav-toggle{display:block}
  .search-drawer{
    display:flex;width:100%;margin-top:6px;height:44px;
  }
  .drawer-btn{display:inline-flex;margin-top:8px;width:100%}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .hero-panel{grid-template-columns:1fr;padding:34px 26px}
  .hero-figure{transform:none;max-width:560px}
  .speed-grid{grid-template-columns:repeat(2,1fr)}
  .guide{padding:52px 0 0}
  .guide-layout{grid-template-columns:1fr;gap:0}
  .toc{display:none}
  .toc-mobile{display:block}
  .sec-body.media-right,.sec-body.media-left{grid-template-columns:1fr}
  .sec-body.media-left .sec-fig{order:0}
  .sec-fig{max-width:520px}
  .jump-grid{grid-template-columns:1fr 1fr}
  .faq-list{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 26px}
  .cta-acts{width:100%}
  .cta-acts .btn{flex:1 1 180px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .container{padding:0 16px}
  .nav{height:64px;gap:14px}
  .logo{font-size:16px}
  .page-hero{padding:20px 0 0}
  .hero-panel{padding:28px 20px;border-radius:18px}
  .hero-sub{font-size:16px}
  .hero-acts .btn{flex:1 1 100%}
  .speed{padding:36px 0 0}
  .doc{gap:44px}
  .guide{padding:46px 0 0}
  .jump,.faq{padding:52px 0 0}
  .cta{padding:56px 0 68px}
  .jump-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column;align-items:flex-start}
  .checklist{padding:18px}
}
@media (max-width:480px){
  .speed-grid{grid-template-columns:1fr}
  .hero-meta{flex-direction:column;gap:8px}
  .faq-q{font-size:15px;padding:16px}
  .faq-a p{padding:0 16px 16px}
  .doc-sec h2{font-size:21px}
}

/* roulang page: category2 */
:root{
  --bg:#070B14;
  --panel:#0B1220;
  --card:#111A2B;
  --primary:#2BE3C2;
  --primary-dark:#14A88F;
  --primary-light:#7BF4E0;
  --accent:#FF7A45;
  --accent-dark:#D95A28;
  --violet:#7C5BFF;
  --text:#EAF2FF;
  --text-2:#9FB0C8;
  --text-3:#6B7C96;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.06);
  --glass-line:rgba(255,255,255,.12);
  --success:#38D39F;
  --warning:#FFB020;
  --error:#FF5C6C;
  --radius-card:16px;
  --radius-panel:20px;
  --radius-btn:12px;
  --radius-img:14px;
  --shadow-1:0 8px 24px rgba(0,0,0,.35);
  --shadow-2:0 16px 40px rgba(0,0,0,.45);
  --shadow-3:0 24px 64px rgba(0,0,0,.55);
  --glow-btn:0 0 0 1px rgba(43,227,194,.35),0 8px 28px rgba(43,227,194,.22);
  --glow-btn-hover:0 0 0 1px rgba(43,227,194,.6),0 12px 36px rgba(43,227,194,.34);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background-image:
    radial-gradient(680px 420px at 12% -6%,rgba(43,227,194,.13),transparent 70%),
    radial-gradient(620px 380px at 92% 6%,rgba(255,122,69,.10),transparent 68%),
    linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:auto,auto,64px 64px,64px 64px;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit;color:inherit}
button{background:none;border:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3,h4{font-weight:700;letter-spacing:-.01em}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
::selection{background:rgba(43,227,194,.3);color:#fff}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-lg{height:50px;padding:0 28px;font-size:16px}
.btn-primary{
  background:linear-gradient(135deg,#2BE3C2,#14A88F);
  color:#06120F;
  box-shadow:var(--glow-btn);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:var(--glow-btn-hover)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(43,227,194,.5),0 4px 14px rgba(43,227,194,.2)}
.btn-ghost{
  background:var(--glass);
  border-color:var(--glass-line);
  color:var(--text);
  backdrop-filter:blur(14px);
}
.btn-ghost:hover{border-color:rgba(43,227,194,.6);color:var(--primary);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-size:15px;font-weight:600;
  background:none;border:0;padding:0;height:auto;cursor:pointer;
}
.btn-text .arw{transition:transform .2s ease}
.btn-text:hover .arw{transform:translateX(3px)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  font-size:12px;letter-spacing:.02em;font-weight:600;
  background:rgba(43,227,194,.14);color:var(--primary-light);
}
.badge-violet{background:rgba(124,91,255,.16);color:#B9A6FF}
.badge-accent{background:rgba(255,122,69,.16);color:#FFB693}
.badge-line{background:var(--glass);border:1px solid var(--glass-line);color:var(--text-2);font-weight:500}
.tag{
  display:inline-flex;align-items:center;
  padding:6px 14px;border-radius:999px;
  background:rgba(124,91,255,.14);color:#C4B4FF;
  font-size:13px;border:1px solid rgba(124,91,255,.22);
}

/* ---------- 导航 ---------- */
.site-head{
  position:sticky;top:0;z-index:60;
  background:rgba(7,11,20,.72);
  backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background .24s ease,border-color .24s ease;
}
.site-head.is-scrolled{background:rgba(7,11,20,.88);border-bottom-color:var(--line)}
.nav{display:flex;align-items:center;gap:20px;height:72px}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-size:17px;font-weight:700;letter-spacing:.01em;color:var(--text);
}
.logo-mark{
  width:28px;height:28px;border-radius:9px;flex:0 0 28px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,#2BE3C2,#14A88F);
  box-shadow:0 0 0 1px rgba(43,227,194,.4),0 8px 22px rgba(43,227,194,.28);
}
.logo-mark i{display:block;width:9px;height:9px;border-radius:3px;background:#06120F}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:6px}
.nav-menu a{
  position:relative;padding:9px 14px;border-radius:10px;
  font-size:15px;color:var(--text-2);
  transition:color .2s ease,background .2s ease;
}
.nav-menu a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-menu a.active{color:var(--primary)}
.nav-menu a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;
  border-radius:2px;background:var(--primary);
  box-shadow:0 0 12px rgba(43,227,194,.7);
}
.nav-tools{margin-left:auto;display:flex;align-items:center;gap:12px}
.search{
  display:flex;align-items:center;gap:8px;
  width:232px;height:38px;padding:0 12px;
  border-radius:var(--radius-btn);
  background:var(--glass);border:1px solid var(--glass-line);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search svg{width:16px;height:16px;flex:0 0 16px;fill:none;stroke:var(--text-3);stroke-width:1.8;stroke-linecap:round}
.search input{
  flex:1;min-width:0;background:none;border:0;outline:none;
  font-size:14px;color:var(--text);
}
.search input::placeholder{color:var(--text-3)}
.search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(43,227,194,.16)}
.nav-toggle{
  display:none;position:relative;width:44px;height:44px;flex:0 0 44px;
  border-radius:var(--radius-btn);background:var(--glass);
  border:1px solid var(--glass-line);cursor:pointer;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;left:12px;right:12px;height:2px;border-radius:2px;
  background:var(--text);transition:transform .24s ease,opacity .2s ease;
}
.nav-toggle span{top:21px}
.nav-toggle span::before{content:"";left:0;right:0;top:-6px}
.nav-toggle span::after{content:"";left:0;right:0;top:6px}
body.nav-open .nav-toggle span{background:var(--primary)}
body.nav-open .nav-toggle span::before{transform:translateY(6px) rotate(45deg)}
body.nav-open .nav-toggle span::after{transform:translateY(-6px) rotate(-45deg)}
.nav-mask{
  position:fixed;inset:0;z-index:70;background:rgba(0,0,0,.6);
  opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease;
}
body.nav-open .nav-mask{opacity:1;visibility:visible}
.nav-drawer{
  position:fixed;top:0;right:0;z-index:80;
  width:78vw;max-width:320px;height:100%;
  padding:24px;overflow-y:auto;
  display:flex;flex-direction:column;gap:18px;
  background:rgba(11,18,32,.94);
  backdrop-filter:blur(18px);
  border-left:1px solid var(--glass-line);
  transform:translateX(100%);opacity:0;
  transition:transform .24s ease,opacity .24s ease;
}
body.nav-open .nav-drawer{transform:translateX(0);opacity:1}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-close{
  width:44px;height:44px;border-radius:var(--radius-btn);
  background:var(--glass);border:1px solid var(--glass-line);
  cursor:pointer;font-size:18px;color:var(--text-2);line-height:1;
}
.drawer-close:hover{color:var(--primary);border-color:rgba(43,227,194,.6)}
.drawer-links{display:flex;flex-direction:column;gap:4px}
.drawer-links a{
  padding:12px 14px;border-radius:12px;color:var(--text-2);
  font-size:15px;border:1px solid transparent;
}
.drawer-links a:hover{background:rgba(255,255,255,.05);color:var(--text)}
.drawer-links a.active{color:var(--primary);border-color:rgba(43,227,194,.3);background:rgba(43,227,194,.08)}
.drawer-actions{display:flex;flex-direction:column;gap:12px;margin-top:auto}
.drawer-actions .btn{width:100%}

/* ---------- 面包屑 ---------- */
.crumb{padding-top:26px;font-size:14px;color:var(--text-3)}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb li{display:inline-flex;align-items:center;gap:8px}
.crumb li+li::before{content:"/";color:var(--text-3)}
.crumb a:hover{color:var(--primary)}
.crumb .current{color:var(--primary)}

/* ---------- 横幅 ---------- */
.banner{
  position:relative;overflow:hidden;
  padding:52px 0 68px;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
}
.banner::before{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(96deg,rgba(7,11,20,.97) 0%,rgba(7,11,20,.86) 46%,rgba(7,11,20,.66) 100%),
    linear-gradient(180deg,rgba(7,11,20,.5),rgba(7,11,20,.92));
}
.banner .container{position:relative;z-index:2}
.banner-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.eyebrow{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:20px}
.banner h1{
  font-size:clamp(30px,4.2vw,52px);
  line-height:1.15;letter-spacing:-.01em;
}
.banner h1 em{font-style:normal;color:var(--primary)}
.lead{
  margin-top:20px;max-width:620px;
  font-size:18px;line-height:1.7;color:var(--text-2);
}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.banner-meta{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;
  font-size:14px;color:var(--text-3);
}
.banner-meta span{display:inline-flex;align-items:center;gap:10px}
.banner-meta span+span::before{content:"·";color:var(--text-3)}
.preview{
  position:relative;
  padding:18px;border-radius:var(--radius-panel);
  background:rgba(11,18,32,.72);
  border:1px solid var(--glass-line);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-3);
  transform:rotate(-1.5deg);
}
.preview::before{
  content:"";position:absolute;inset:-40px -30px auto auto;
  width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(43,227,194,.28),transparent 68%);
  filter:blur(6px);z-index:-1;
}
.preview::after{
  content:"";position:absolute;top:0;left:18px;right:18px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.25),transparent);
}
.preview-img{
  position:relative;border-radius:var(--radius-img);overflow:hidden;
  aspect-ratio:16/10;background:#05080F;
}
.preview-img img{width:100%;height:100%;object-fit:cover}
.preview-img::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.05),rgba(7,11,20,.65));
}
.preview-rows{margin-top:16px;display:flex;flex-direction:column;gap:10px}
.preview-row{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 14px;border-radius:12px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  font-size:14px;color:var(--text-2);
}
.preview-row b{color:var(--text);font-weight:600}
.preview-row .val{color:var(--primary);font-variant-numeric:tabular-nums;font-weight:700}

/* ---------- 数字速览 ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
  margin-top:-34px;position:relative;z-index:3;
}
.stat{
  padding:20px 22px;border-radius:var(--radius-card);
  background:rgba(255,255,255,.06);
  border:1px solid var(--glass-line);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-1);
  position:relative;overflow:hidden;
}
.stat::before{
  content:"";position:absolute;top:0;left:14px;right:14px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.25),transparent);
}
.stat .num{
  font-size:28px;font-weight:700;line-height:1.2;
  color:var(--primary);font-variant-numeric:tabular-nums;
}
.stat .num.accent{color:var(--accent)}
.stat .cap{margin-top:6px;font-size:12px;letter-spacing:.02em;color:var(--text-3)}

/* ---------- 板块 ---------- */
.sec{padding:92px 0}
.sec-tight{padding-top:64px}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head h2{font-size:clamp(24px,3vw,36px);line-height:1.25}
.sec-head p{margin-top:14px;font-size:15px;color:var(--text-2)}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head.center .kicker{justify-content:center}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;padding-left:8px}
.timeline::before{
  content:"";position:absolute;left:29px;top:12px;bottom:34px;width:2px;
  background:linear-gradient(180deg,rgba(43,227,194,.85),rgba(43,227,194,.18) 72%,transparent);
}
.tl-item{position:relative;padding:0 0 34px 76px}
.tl-item:last-child{padding-bottom:0}
.tl-num{
  position:absolute;left:8px;top:0;
  width:44px;height:44px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--panel);
  border:1px solid rgba(43,227,194,.45);
  color:var(--primary);font-weight:700;
  font-variant-numeric:tabular-nums;
  box-shadow:0 0 0 6px rgba(43,227,194,.06);
}
.tl-card{
  padding:22px 24px;border-radius:var(--radius-card);
  background:rgba(255,255,255,.06);
  border:1px solid var(--glass-line);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.tl-card:hover{transform:translateY(-4px);border-color:rgba(43,227,194,.4);box-shadow:var(--shadow-2)}
.tl-card h3{font-size:20px;line-height:1.35}
.tl-card p{margin-top:10px;font-size:15px;color:var(--text-2)}
.tl-time{
  display:inline-flex;align-items:center;gap:8px;margin-top:14px;
  font-size:13px;color:var(--accent);
  font-variant-numeric:tabular-nums;
}

/* ---------- 对照区 ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.panel{
  padding:26px;border-radius:var(--radius-panel);
  background:rgba(255,255,255,.06);
  border:1px solid var(--glass-line);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-1);
  position:relative;overflow:hidden;
}
.panel::before{
  content:"";position:absolute;top:0;left:20px;right:20px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.25),transparent);
}
.panel-title{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.panel-title h3{font-size:20px}
.panel-icon{
  width:38px;height:38px;border-radius:12px;flex:0 0 38px;
  display:grid;place-items:center;font-size:16px;font-weight:700;
  background:rgba(43,227,194,.14);color:var(--primary);
}
.panel.accent .panel-icon{background:rgba(255,122,69,.16);color:var(--accent)}
.panel.accent .panel-title h4{color:var(--accent)}
.dot-list li{
  position:relative;padding-left:22px;margin-bottom:14px;
  font-size:15px;color:var(--text-2);
}
.dot-list li:last-child{margin-bottom:0}
.dot-list li::before{
  content:"";position:absolute;left:0;top:11px;
  width:8px;height:8px;border-radius:2px;
  background:rgba(43,227,194,.9);
  box-shadow:0 0 10px rgba(43,227,194,.5);
}
.dot-list.accent li::before{background:var(--accent);box-shadow:0 0 10px rgba(255,122,69,.5)}
.dot-list li b{color:var(--text);font-weight:600}
.panel-note{
  margin-top:18px;padding:14px 16px;border-radius:12px;
  background:rgba(255,255,255,.04);
  border:1px dashed var(--line);
  font-size:13px;color:var(--text-3);
}

/* ---------- 轮次卡片 ---------- */
.round-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.round-card{
  display:flex;flex-direction:column;
  border-radius:var(--radius-card);overflow:hidden;
  background:rgba(255,255,255,.06);
  border:1px solid var(--glass-line);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.round-card:hover{transform:translateY(-4px);border-color:rgba(43,227,194,.4);box-shadow:var(--shadow-2)}
.round-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#05080F}
.round-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.round-card:hover .round-media img{transform:scale(1.04)}
.round-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.05),rgba(7,11,20,.7));
}
.round-media .badge{position:absolute;left:14px;top:14px;z-index:2}
.round-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.round-body h3{font-size:18px;line-height:1.4}
.round-body p{font-size:14px;color:var(--text-2)}
.round-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.round-foot .go{color:var(--primary);display:inline-flex;align-items:center;gap:6px}
.round-foot .go .arw{transition:transform .2s ease}
.round-card:hover .round-foot .go .arw{transform:translateX(3px)}

/* ---------- 表单 ---------- */
.form-wrap{display:grid;grid-template-columns:5fr 7fr;gap:32px;align-items:start}
.form-card{
  padding:28px;border-radius:var(--radius-panel);
  background:rgba(255,255,255,.06);
  border:1px solid var(--glass-line);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-1);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:13px;color:var(--text-2);letter-spacing:.02em}
.field input,.field select{
  height:44px;padding:0 14px;border-radius:var(--radius-btn);
  background:rgba(255,255,255,.05);
  border:1px solid var(--glass-line);
  color:var(--text);font-size:14px;outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field input::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(43,227,194,.16)}
.field .msg{font-size:12px;color:var(--text-3)}
.field.error input{border-color:var(--error)}
.field.error .msg{color:var(--error)}
.form-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.form-aside h3{font-size:22px;line-height:1.35}
.form-aside p{margin-top:14px;font-size:15px;color:var(--text-2)}
.aside-list{margin-top:22px;display:flex;flex-direction:column;gap:12px}
.aside-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 16px;border-radius:12px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  font-size:14px;color:var(--text-2);
}
.aside-list li b{color:var(--text);font-weight:600;display:block;margin-bottom:2px}
.aside-list .idx{
  flex:0 0 26px;width:26px;height:26px;border-radius:8px;
  display:grid;place-items:center;font-size:12px;font-weight:700;
  background:rgba(124,91,255,.16);color:#C4B4FF;
}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:920px}
.faq-item{
  border-radius:var(--radius-card);
  background:rgba(255,255,255,.06);
  border:1px solid var(--glass-line);
  backdrop-filter:blur(14px);
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item.open{border-color:rgba(43,227,194,.42);box-shadow:var(--shadow-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;text-align:left;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--text);
}
.faq-q:hover{color:var(--primary-light)}
.faq-sign{
  position:relative;flex:0 0 22px;width:22px;height:22px;
  transition:transform .28s ease;
}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;background:var(--text-2);border-radius:2px;
  transition:background .2s ease;
}
.faq-sign::before{left:0;right:0;top:10px;height:2px}
.faq-sign::after{top:0;bottom:0;left:10px;width:2px}
.faq-item.open .faq-sign{transform:rotate(45deg)}
.faq-item.open .faq-sign::before,.faq-item.open .faq-sign::after{background:var(--primary)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .32s ease,padding .32s ease;
}
.faq-item.open .faq-a{max-height:340px}
.faq-a p{padding:0 24px 22px;font-size:14px;line-height:1.8;color:var(--text-2)}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  padding:40px;border-radius:var(--radius-panel);
  background:
    linear-gradient(135deg,rgba(43,227,194,.10),rgba(255,122,69,.06)),
    rgba(255,255,255,.05);
  border:1px solid var(--glass-line);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-2);
  display:grid;grid-template-columns:7fr 5fr;gap:32px;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:40px 40px;
  opacity:.5;pointer-events:none;
}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3}
.cta-band p{margin-top:12px;font-size:15px;color:var(--text-2);max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}

/* ---------- 页脚 ---------- */
.site-foot{
  margin-top:20px;padding:72px 0 28px;
  background:linear-gradient(180deg,rgba(11,18,32,.4),rgba(7,11,20,.96));
  border-top:1px solid var(--line);
}
.foot-grid{display:grid;grid-template-columns:4fr 2fr 2fr 3fr;gap:40px}
.foot-brand p{margin-top:18px;font-size:14px;line-height:1.8;color:var(--text-2)}
.foot-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.foot-col h4{font-size:14px;color:var(--primary);letter-spacing:.04em;margin-bottom:16px}
.foot-col ul{display:flex;flex-direction:column;gap:10px}
.foot-col a{font-size:14px;color:var(--text-2);transition:color .2s ease}
.foot-col a:hover{color:var(--primary)}
.foot-contact li{font-size:14px;color:var(--text-2)}
.foot-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
}
.foot-bottom p{font-size:13px;color:var(--text-3)}
.foot-bottom .links{display:flex;flex-wrap:wrap;gap:18px}
.foot-bottom .links a{font-size:13px;color:var(--text-3)}
.foot-bottom .links a:hover{color:var(--primary)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .nav-menu a{padding:9px 11px;font-size:14px}
  .search{width:200px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav-menu,.nav-tools .search,.nav-tools .btn-ghost,.nav-tools .btn-primary{display:none}
  .nav-toggle{display:block}
  .banner-grid{grid-template-columns:1fr;gap:34px}
  .preview{transform:none}
  .stat-strip{grid-template-columns:repeat(2,1fr);margin-top:28px}
  .compare{grid-template-columns:1fr}
  .round-grid{grid-template-columns:repeat(2,1fr)}
  .form-wrap{grid-template-columns:1fr}
  .cta-band{grid-template-columns:1fr;padding:32px}
  .cta-actions{justify-content:flex-start}
  .foot-grid{grid-template-columns:repeat(2,1fr);gap:32px}
  .sec{padding:72px 0}
}
@media (max-width:767px){
  body{font-size:15px}
  .container{padding:0 16px}
  .nav{height:64px}
  .logo{font-size:16px}
  .banner{padding:34px 0 52px}
  .lead{font-size:16px}
  .btn-row .btn{flex:1 1 100%}
  .stat-strip{grid-template-columns:repeat(2,1fr);gap:12px}
  .stat{padding:16px 18px}
  .stat .num{font-size:22px}
  .sec{padding:56px 0}
  .sec-head{margin-bottom:30px}
  .tl-item{padding-left:64px}
  .timeline::before{left:25px}
  .tl-num{left:4px;width:40px;height:40px}
  .round-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .form-actions .btn{flex:1 1 100%}
  .cta-actions .btn{flex:1 1 100%}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column;align-items:flex-start}
  .faq-q{padding:16px 18px;font-size:15px}
  .faq-a p{padding:0 18px 18px}
}
@media (max-width:480px){
  .banner h1{font-size:28px}
  .stat-strip{grid-template-columns:1fr 1fr}
  .badge{font-size:11px}
}