/* roulang page: index */
:root{
  --bg-0:#070B14;
  --bg-1:#0C1524;
  --bg-2:#111D31;
  --brand:#2F7BFF;
  --brand-2:#5B9DFF;
  --accent:#2BE8C4;
  --accent-2:#FFB63D;
  --danger:#FF5A5F;
  --ink-1:#EAF1FB;
  --ink-2:#9FB0C9;
  --ink-3:#6B7C96;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(47,123,255,.35);
  --glow:0 0 0 1px rgba(43,232,196,.35), 0 8px 28px -8px rgba(43,232,196,.45);
  --shadow-card:0 18px 44px -22px rgba(0,0,0,.75);
  --glass:rgba(255,255,255,.045);
  --r-card:18px;
  --r-panel:20px;
  --r-btn:12px;
  --r-pill:999px;
  --container:1200px;
  --fs-h1:44px;
  --fs-h2:30px;
  --fs-h3:20px;
  --lh-body:1.85;
  --sec-py:88px;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html,body{max-width:100%;overflow-x:hidden;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:var(--lh-body);
  color:var(--ink-1);
  background:var(--bg-0);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
h1,h2,h3,h4,h5{margin:0;font-weight:700;letter-spacing:-.2px;line-height:1.3;color:var(--ink-1);}
p{margin:0;}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease),opacity .22s var(--ease);}
img{display:block;max-width:100%;border:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
input,select,textarea{font-family:inherit;}
::selection{background:rgba(47,123,255,.35);color:#fff;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.grid-x.grid-padding-x{margin-left:-12px;margin-right:-12px;}
.grid-x.grid-padding-x>.cell{padding-left:12px;padding-right:12px;}
.section{padding:var(--sec-py) 0;position:relative;}
.section--alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:44px;}
.sec-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.12em;color:var(--accent);
  text-transform:uppercase;margin-bottom:14px;font-weight:600;
}
.sec-eyebrow::before{content:"";width:18px;height:1px;background:var(--accent);opacity:.7;}
.sec-title{font-size:var(--fs-h2);margin-bottom:14px;}
.sec-desc{color:var(--ink-2);font-size:15.5px;line-height:1.85;max-width:680px;}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.link-more{font-size:14px;color:var(--accent);display:inline-flex;align-items:center;gap:8px;white-space:nowrap;}
.link-more i{transition:transform .22s var(--ease);}
.link-more:hover i{transform:translateX(4px);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 22px;
  border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:500;line-height:1;
  cursor:pointer;transition:all .22s var(--ease);white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(180deg,var(--brand-2),var(--brand));
  color:#fff;
  box-shadow:0 10px 26px -12px rgba(47,123,255,.9),inset 0 1px 0 rgba(255,255,255,.24);
}
.btn-primary:hover{filter:brightness(1.07);transform:translateY(-1px);box-shadow:0 14px 30px -12px rgba(47,123,255,1),inset 0 1px 0 rgba(255,255,255,.3);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-glow{
  background:linear-gradient(180deg,#3CF2D2,#1FCBAE);
  color:#04231D;font-weight:700;
  box-shadow:var(--glow);
}
.btn-glow:hover{filter:brightness(1.06);transform:translateY(-1px);}
.btn-glow:active{transform:translateY(1px);box-shadow:none;}
.btn-ghost{
  background:rgba(255,255,255,.05);
  border-color:rgba(255,255,255,.16);
  color:var(--ink-1);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{border-color:var(--line-2);background:rgba(47,123,255,.12);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{min-height:38px;padding:9px 16px;font-size:14px;}
.btn-block{width:100%;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(7,11,20,.55);
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease),backdrop-filter .24s var(--ease);
}
.site-header.scrolled{
  background:rgba(7,11,20,.86);
  border-bottom-color:var(--line);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
}
.header-inner{
  display:flex;align-items:center;gap:24px;
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-icon{
  width:34px;height:34px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(43,232,196,.1);
  border:1px solid rgba(43,232,196,.32);
  color:var(--accent);font-size:16px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-top{font-size:15px;font-weight:700;letter-spacing:.02em;color:var(--ink-1);}
.brand-bottom{font-size:10px;letter-spacing:.22em;color:var(--ink-3);text-transform:uppercase;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1;}
.nav-link{
  position:relative;font-size:15px;color:var(--ink-2);
  padding:8px 12px;border-radius:9px;
  transition:color .24s var(--ease),background .24s var(--ease);
}
.nav-link:hover{color:var(--ink-1);background:rgba(255,255,255,.05);}
.nav-link.active{color:var(--accent);}
.nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;
  background:var(--accent);border-radius:2px;
  box-shadow:0 0 12px rgba(43,232,196,.75);
}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-search{
  position:relative;display:flex;align-items:center;
  background:rgba(255,255,255,.06);
  border:1px solid var(--line);
  border-radius:12px;width:220px;height:40px;
  padding:0 12px;gap:8px;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.nav-search:focus-within{border-color:rgba(43,232,196,.55);box-shadow:0 0 0 3px rgba(43,232,196,.12);}
.nav-search i{color:var(--ink-3);font-size:13px;}
.nav-search input{
  flex:1;background:transparent;border:0;outline:none;
  color:var(--ink-1);font-size:13.5px;height:100%;
  box-shadow:none;margin:0;
}
.nav-search input::placeholder{color:var(--ink-3);}
.nav-login{font-size:14.5px;color:var(--ink-2);padding:8px 6px;}
.nav-login:hover{color:var(--ink-1);}
.nav-toggle{
  display:none;width:44px;height:44px;
  border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.05);color:var(--ink-1);
  cursor:pointer;font-size:16px;align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:var(--line-2);}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  min-height:78vh;display:flex;align-items:center;
  padding:96px 0 88px;
  border-bottom:1px solid var(--line);
}
.hero-bg{
  position:absolute;inset:0;z-index:0;
  background-image:linear-gradient(90deg,rgba(7,11,20,.94) 0%,rgba(7,11,20,.72) 55%,rgba(7,11,20,.5) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center right;background-repeat:no-repeat;
}
.hero-bg::after{
  content:"";position:absolute;inset: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:32px 32px;opacity:.55;
}
.hero::before{
  content:"";position:absolute;z-index:1;pointer-events:none;
  width:520px;height:520px;left:-160px;top:-180px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,123,255,.28),transparent 68%);
}
.hero::after{
  content:"";position:absolute;z-index:1;pointer-events:none;
  width:460px;height:460px;right:-140px;bottom:-200px;border-radius:50%;
  background:radial-gradient(circle,rgba(43,232,196,.2),transparent 70%);
}
.hero .container{position:relative;z-index:2;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.05);
  border:1px solid rgba(43,232,196,.28);
  font-size:12.5px;color:var(--ink-1);letter-spacing:.04em;
  margin-bottom:22px;
}
.red-dot{width:7px;height:7px;border-radius:50%;background:var(--danger);box-shadow:0 0 0 4px rgba(255,90,95,.16);}
.hero-title{
  font-size:var(--fs-h1);
  line-height:1.2;
  letter-spacing:-.5px;
  margin-bottom:18px;
  max-width:560px;
}
.hero-title em{font-style:normal;color:var(--accent);}
.hero-sub{
  font-size:17px;color:var(--ink-2);line-height:1.7;
  max-width:520px;margin-bottom:28px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px;}
.hero-kpis{display:flex;flex-wrap:wrap;gap:26px;align-items:stretch;}
.kpi{display:flex;flex-direction:column;gap:4px;position:relative;padding-left:18px;}
.kpi:first-child{padding-left:0;}
.kpi:not(:first-child)::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:1px;background:var(--line);
}
.kpi-num{
  font-family:var(--mono);font-size:22px;font-weight:700;color:var(--ink-1);
  font-variant-numeric:tabular-nums;letter-spacing:-.5px;
}
.kpi-num span{font-size:13px;color:var(--ink-3);font-weight:500;margin-left:3px;}
.kpi-label{font-size:12.5px;color:var(--ink-3);letter-spacing:.02em;}

.glass-card{
  background:var(--glass);
  border:1px solid rgba(255,255,255,.1);
  border-radius:var(--r-panel);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.08);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.hero-card{padding:26px;max-width:420px;margin-left:auto;}
.hero-card:hover{transform:translateY(-2px);border-color:rgba(43,232,196,.3);}
.hero-card-tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;color:var(--accent);letter-spacing:.06em;
  padding:5px 12px;border-radius:var(--r-pill);
  background:rgba(43,232,196,.1);border:1px solid rgba(43,232,196,.26);
  margin-bottom:16px;
}
.hero-card h2{font-size:19px;margin-bottom:18px;}
.overview-list{display:flex;flex-direction:column;gap:0;}
.overview-item{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:13px 0;border-bottom:1px dashed var(--line);
  font-size:14px;
}
.overview-item:last-of-type{border-bottom:0;}
.overview-item dt{color:var(--ink-3);flex-shrink:0;}
.overview-item dd{margin:0;color:var(--ink-1);font-weight:500;text-align:right;}
.hero-card .btn{margin-top:18px;}

/* ============ 时间线 ============ */
.timeline{position:relative;max-width:960px;margin:0 auto;}
.timeline::before{
  content:"";position:absolute;left:50%;top:8px;bottom:20px;width:2px;
  transform:translateX(-1px);
  background:linear-gradient(180deg,var(--line-2),rgba(43,232,196,.25) 55%,transparent);
}
.tl-item{position:relative;width:50%;padding:0 48px 40px 0;}
.tl-item:nth-child(even){margin-left:50%;padding:0 0 40px 48px;}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:absolute;top:2px;right:-18px;
  width:36px;height:36px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:14px;font-weight:700;color:var(--accent);
  background:#0A1524;border:1px solid rgba(43,232,196,.45);
  box-shadow:0 0 0 5px rgba(7,11,20,.9),0 0 22px -6px rgba(43,232,196,.6);
  z-index:2;
}
.tl-item:nth-child(even) .tl-dot{right:auto;left:-18px;}
.tl-card{
  padding:22px 24px;border-radius:var(--r-card);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  transition:border-color .24s var(--ease),transform .24s var(--ease),background .24s var(--ease);
}
.tl-card:hover{border-color:rgba(47,123,255,.45);transform:translateY(-2px);background:rgba(255,255,255,.055);}
.tl-card h3{font-size:18px;margin-bottom:8px;}
.tl-card p{font-size:14.5px;color:var(--ink-2);line-height:1.8;}
.tl-tag{
  display:inline-block;margin-top:12px;font-size:12px;
  padding:4px 10px;border-radius:var(--r-pill);
  background:rgba(47,123,255,.14);color:var(--brand-2);border:1px solid rgba(47,123,255,.3);
}

/* ============ 亮点卡片 ============ */
.hl-card{
  position:relative;display:block;height:100%;
  border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);
  background:var(--bg-2);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.hl-card:hover{transform:translateY(-2px);border-color:var(--line-2);box-shadow:var(--shadow-card);}
.hl-media{position:relative;overflow:hidden;aspect-ratio:16/10;background:var(--bg-1);}
.hl-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.hl-card:hover .hl-media img{transform:scale(1.03);}
.hl-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,0) 30%,rgba(7,11,20,.82) 100%);
}
.hl-badge{
  position:absolute;left:14px;top:14px;z-index:2;
  font-size:12px;padding:5px 11px;border-radius:var(--r-pill);
  background:rgba(7,11,20,.7);border:1px solid rgba(255,255,255,.18);
  color:var(--ink-1);backdrop-filter:blur(8px);
}
.hl-body{padding:20px;}
.hl-body h3{font-size:17px;margin-bottom:8px;line-height:1.5;}
.hl-body p{font-size:14px;color:var(--ink-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.hl-link{margin-top:14px;display:inline-flex;align-items:center;gap:7px;font-size:13.5px;color:var(--accent);}
.hl-card:hover .hl-link i{transform:translateX(4px);}
.hl-link i{transition:transform .22s var(--ease);}
.hl-card--wide .hl-body h3{font-size:20px;}
.hl-card--wide .hl-body p{-webkit-line-clamp:3;}

/* ============ 通行方式对比 ============ */
.plan-card{
  display:flex;flex-direction:column;height:100%;
  padding:28px 24px;border-radius:var(--r-panel);
  background:rgba(255,255,255,.038);
  border:1px solid var(--line);
  position:relative;
  transition:border-color .24s var(--ease),transform .24s var(--ease),background .24s var(--ease);
}
.plan-card:hover{border-color:var(--line-2);transform:translateY(-2px);background:rgba(255,255,255,.055);}
.plan-card--rec{
  background:linear-gradient(180deg,rgba(47,123,255,.14),rgba(255,255,255,.04));
  border-color:rgba(43,232,196,.45);
  box-shadow:0 0 0 1px rgba(43,232,196,.18),0 22px 50px -26px rgba(43,232,196,.55);
  transform:translateY(-8px);
}
.plan-card--rec:hover{transform:translateY(-10px);}
.plan-flag{
  position:absolute;left:20px;top:-13px;
  background:var(--accent-2);color:#241802;
  font-size:12px;font-weight:700;padding:5px 12px;border-radius:var(--r-pill);
  letter-spacing:.04em;
}
.plan-name{font-size:15px;color:var(--ink-2);margin-bottom:8px;letter-spacing:.04em;}
.plan-desc{font-size:13.5px;color:var(--ink-3);min-height:42px;line-height:1.7;}
.plan-price{display:flex;align-items:baseline;gap:6px;margin:16px 0 20px;}
.plan-price strong{font-family:var(--mono);font-size:32px;color:var(--ink-1);letter-spacing:-1px;font-variant-numeric:tabular-nums;}
.plan-price span{font-size:13px;color:var(--ink-3);}
.plan-feats{display:flex;flex-direction:column;gap:0;margin-bottom:22px;}
.plan-feats li{
  display:flex;align-items:center;gap:10px;
  font-size:14px;color:var(--ink-2);line-height:40px;
  border-bottom:1px solid var(--line);
}
.plan-feats li:last-child{border-bottom:0;}
.plan-feats li i{font-size:12px;width:14px;text-align:center;}
.plan-feats li i.fa-check{color:var(--accent);}
.plan-feats li i.fa-minus{color:var(--ink-3);}
.plan-card .btn{margin-top:auto;}

/* ============ 表单区 ============ */
.cta-panel{
  border-radius:24px;
  border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(47,123,255,.14),rgba(43,232,196,.06) 60%,rgba(255,255,255,.02));
  padding:44px;
  position:relative;overflow:hidden;
}
.cta-panel::before{
  content:"";position:absolute;width:420px;height:420px;right:-140px;top:-160px;border-radius:50%;
  background:radial-gradient(circle,rgba(43,232,196,.18),transparent 70%);pointer-events:none;
}
.cta-panel h2{font-size:28px;margin-bottom:14px;}
.cta-panel .lead{color:var(--ink-2);font-size:15px;margin-bottom:24px;max-width:420px;}
.point-list{display:flex;flex-direction:column;gap:12px;}
.point-list li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:var(--ink-2);}
.point-list i{color:var(--accent);font-size:13px;margin-top:6px;}
.form-card{
  position:relative;z-index:2;
  border-radius:var(--r-panel);padding:26px;
  background:rgba(8,14,24,.72);
  border:1px solid rgba(255,255,255,.12);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;color:var(--ink-3);margin-bottom:8px;letter-spacing:.02em;}
.field input,.field select{
  width:100%;height:48px;padding:0 14px;
  border-radius:var(--r-btn);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  color:var(--ink-1);font-size:14.5px;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease);
  margin:0;
}
.field input::placeholder{color:var(--ink-3);}
.field select{appearance:none;background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath fill='%236B7C96' d='M0 0l6 8 6-8z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center;background-size:10px;padding-right:38px;}
.field select option{background:#0C1524;color:var(--ink-1);}
.field input:focus,.field select:focus{
  outline:none;border-color:rgba(43,232,196,.6);
  box-shadow:0 0 0 3px rgba(43,232,196,.14);
  background:rgba(255,255,255,.075);
}
.field.error input,.field.error select{border-color:var(--accent-2);box-shadow:0 0 0 3px rgba(255,182,61,.12);}
.field .tip{display:none;font-size:12px;color:var(--accent-2);margin-top:6px;}
.field.error .tip{display:block;}
.form-note{font-size:12px;color:var(--ink-3);margin-top:14px;line-height:1.7;}
.form-ok{
  display:none;margin-top:14px;font-size:13px;color:var(--accent);
  background:rgba(43,232,196,.08);border:1px solid rgba(43,232,196,.3);
  border-radius:10px;padding:10px 14px;
}

/* ============ 最新信息 ============ */
.news-card{
  position:relative;display:flex;flex-direction:column;height:100%;
  padding:22px;border-radius:var(--r-card);
  background:rgba(255,255,255,.035);
  border:1px solid var(--line);
  transition:border-color .24s var(--ease),transform .24s var(--ease),background .24s var(--ease);
}
.news-card:hover{border-color:var(--line-2);transform:translateY(-2px);background:rgba(255,255,255,.055);}
.news-badge{
  align-self:flex-start;font-size:12px;padding:4px 11px;border-radius:var(--r-pill);
  background:rgba(47,123,255,.14);border:1px solid rgba(47,123,255,.3);
  color:var(--brand-2);margin-bottom:14px;
}
.news-title{
  font-size:16.5px;line-height:1.55;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-desc{
  font-size:13.5px;color:var(--ink-2);line-height:1.75;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--ink-3);margin-top:auto;font-family:var(--mono);font-variant-numeric:tabular-nums;}
.news-meta .dot{opacity:.6;}
.news-card-link{position:absolute;inset:0;z-index:1;font-size:0;color:transparent;}
.empty-state{
  text-align:center;padding:54px 24px;border-radius:var(--r-panel);
  border:1px dashed rgba(255,255,255,.16);background:rgba(255,255,255,.025);
}
.empty-state i{font-size:26px;color:var(--ink-3);margin-bottom:14px;display:block;}
.empty-state strong{display:block;font-size:16px;margin-bottom:6px;}
.empty-state span{font-size:13.5px;color:var(--ink-3);}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;margin:0 auto;}
.faq-item{
  border:1px solid var(--line);border-radius:14px;
  background:rgba(255,255,255,.03);
  margin-bottom:12px;overflow:hidden;
  transition:border-color .22s var(--ease),background .22s var(--ease);
}
.faq-item.open{border-color:rgba(43,232,196,.34);background:rgba(43,232,196,.05);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:56px;padding:14px 20px;text-align:left;
  background:transparent;border:0;color:var(--ink-1);
  font-size:15.5px;font-weight:500;cursor:pointer;
  transition:color .22s var(--ease);
}
.faq-q:hover{color:var(--accent);}
.faq-q .ico{
  flex-shrink:0;width:22px;height:22px;position:relative;
  border:1px solid rgba(255,255,255,.2);border-radius:50%;
  transition:transform .25s var(--ease),border-color .25s var(--ease);
}
.faq-q .ico::before,.faq-q .ico::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--ink-2);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-q .ico::before{width:9px;height:1.5px;}
.faq-q .ico::after{width:1.5px;height:9px;transition:opacity .25s var(--ease);}
.faq-item.open .faq-q .ico{transform:rotate(45deg);border-color:rgba(43,232,196,.55);}
.faq-item.open .faq-q .ico::before,.faq-item.open .faq-q .ico::after{background:var(--accent);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
.faq-item.open .faq-a{max-height:340px;}
.faq-a p{padding:0 20px 20px;font-size:14.5px;color:var(--ink-2);line-height:1.9;}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;background:var(--bg-1);
  border-top:1px solid var(--line);
  padding:72px 0 0;margin-top:0;
}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
  background-size:32px 32px;
}
.footer-grid{position:relative;display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:56px;}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{font-size:14px;color:var(--ink-2);line-height:1.85;max-width:300px;}
.footer-social{display:flex;gap:10px;margin-top:20px;}
.footer-social a{
  width:38px;height:38px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  color:var(--ink-2);font-size:14px;
  transition:all .22s var(--ease);
}
.footer-social a:hover{color:var(--accent);border-color:rgba(43,232,196,.5);transform:translateY(-2px);}
.footer-col h3{font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--ink-3);margin-bottom:18px;text-transform:uppercase;}
.footer-col ul{display:flex;flex-direction:column;gap:0;}
.footer-col li a{
  display:inline-block;font-size:14px;color:var(--ink-2);line-height:34px;
  transition:color .22s var(--ease),transform .22s var(--ease);
}
.footer-col li a:hover{color:var(--ink-1);transform:translateX(2px);}
.footer-bottom{
  position:relative;border-top:1px solid var(--line);
  padding:24px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p,.footer-bottom span{font-size:13px;color:var(--ink-3);}
.footer-bottom .tech{font-family:var(--mono);font-size:12.5px;letter-spacing:.02em;}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .nav-search{width:180px;}
  .main-nav{gap:0;}
  .nav-link{padding:8px 9px;font-size:14.5px;}
}
@media (max-width:1024px){
  :root{--fs-h1:34px;--fs-h2:24px;--sec-py:64px;}
  .grid-x.grid-padding-x{margin-left:-8px;margin-right:-8px;}
  .grid-x.grid-padding-x>.cell{padding-left:8px;padding-right:8px;}
  .nav-search,.nav-login{display:none;}
  .nav-toggle{display:inline-flex;}
  .main-nav{
    position:fixed;left:0;right:0;top:60px;
    height:calc(100vh - 60px);
    flex-direction:column;align-items:stretch;gap:0;
    margin:0;padding:12px 24px 32px;
    background:rgba(7,11,20,.98);
    backdrop-filter:blur(18px);
    border-top:1px solid var(--line);
    overflow-y:auto;
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s var(--ease);
  }
  .main-nav.open{opacity:1;visibility:visible;transform:none;}
  .nav-link{
    font-size:16px;line-height:52px;padding:0 4px;border-radius:0;
    border-bottom:1px solid var(--line);
  }
  .nav-link.active::after{left:4px;right:auto;width:24px;bottom:-1px;}
  .header-inner{min-height:60px;gap:14px;}
  .hero{min-height:auto;padding:64px 0 64px;}
  .hero-card{margin:36px 0 0;max-width:100%;}
  .hero-title{max-width:100%;}
  .timeline::before{left:18px;top:10px;}
  .tl-item,.tl-item:nth-child(even){width:100%;margin-left:0;padding:0 0 26px 52px;}
  .tl-item:last-child{padding-bottom:0;}
  .tl-dot,.tl-item:nth-child(even) .tl-dot{left:0;right:auto;width:32px;height:32px;font-size:13px;}
  .plan-card--rec{transform:none;}
  .plan-card--rec:hover{transform:translateY(-2px);}
  .cta-panel{padding:30px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1 / -1;}
}
@media (max-width:640px){
  :root{--fs-h1:28px;--fs-h2:22px;--sec-py:48px;}
  .container{padding:0 18px;}
  .hero{padding:48px 0 52px;}
  .hero-sub{font-size:15.5px;}
  .hero-cta{gap:10px;}
  .hero-cta .btn{flex:1 1 100%;}
  .hero-kpis{gap:18px;}
  .kpi{padding-left:14px;}
  .kpi-num{font-size:19px;}
  .hero-card{padding:20px;}
  .section-head{margin-bottom:30px;}
  .sec-title{font-size:22px;}
  .cta-panel{padding:22px;border-radius:18px;}
  .cta-panel h2{font-size:22px;}
  .form-card{padding:20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:40px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .faq-q{font-size:15px;padding:12px 16px;}
  .faq-a p{padding:0 16px 18px;}
  .news-card{padding:18px;}
}

/* roulang page: category1 */
:root{
  --bg-0:#070B14;
  --bg-1:#0C1524;
  --bg-2:#111D31;
  --brand:#2F7BFF;
  --brand-soft:rgba(47,123,255,.14);
  --accent:#2BE8C4;
  --accent-2:#FFB63D;
  --ink-1:#EAF1FB;
  --ink-2:#9FB0C9;
  --ink-3:#6B7C96;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(47,123,255,.35);
  --glow:0 0 0 1px rgba(43,232,196,.35), 0 8px 28px -8px rgba(43,232,196,.45);
  --shadow-card:0 18px 44px -22px rgba(0,0,0,.75);
  --glass:rgba(255,255,255,.045);
  --r-card:18px;
  --r-panel:20px;
  --r-btn:12px;
  --container:1200px;
  --fs-h1:44px;
  --fs-h2:30px;
  --fs-h3:20px;
  --fs-body:16px;
  --lh-body:1.85;
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:220ms;
}
*,*::before,*::after{box-sizing:border-box}
html{overflow-x:hidden;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  background:var(--bg-0);
  color:var(--ink-1);
  font-size:var(--fs-body);
  line-height:var(--lh-body);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font-family:inherit}
::selection{background:rgba(43,232,196,.28);color:#fff}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}

/* 容器与栅格 */
.grid-container{max-width:var(--container);width:100%;padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto}
.container{max-width:var(--container);width:100%;margin:0 auto;padding:0 24px}
.grid-x>.cell{padding-left:12px;padding-right:12px}
.grid-x{margin-left:-12px;margin-right:-12px}
@media screen and (max-width:640px){
  .grid-container,.container{padding-left:16px;padding-right:16px}
  .grid-x>.cell{padding-left:8px;padding-right:8px}
  .grid-x{margin-left:-8px;margin-right:-8px}
}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(7,11,20,.72);
  border-bottom:1px solid transparent;
  transition:background var(--t) var(--ease),border-color var(--t) var(--ease),backdrop-filter var(--t) var(--ease);
  backdrop-filter:blur(10px);
}
.site-header.is-scrolled{
  background:rgba(7,11,20,.88);
  border-bottom-color:var(--line);
  backdrop-filter:blur(18px);
  box-shadow:0 12px 30px -24px rgba(0,0,0,.9);
}
.header-inner{
  display:flex;align-items:center;gap:28px;
  height:72px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none;transition:transform var(--t) var(--ease)}
.brand:hover{transform:translateY(-1px)}
.brand-icon{
  width:38px;height:38px;border-radius:12px;flex:none;
  display:grid;place-items:center;
  color:var(--accent);font-size:17px;
  background:linear-gradient(160deg,rgba(47,123,255,.22),rgba(43,232,196,.10));
  border:1px solid var(--line-2);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.10);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-top{font-size:16px;font-weight:700;letter-spacing:-.2px;color:var(--ink-1)}
.brand-bottom{font-size:10px;letter-spacing:.18em;color:var(--ink-3);margin-top:3px}
.main-nav{display:flex;align-items:center;gap:6px;flex:1 1 auto;min-width:0}
.nav-link{
  position:relative;display:inline-block;
  padding:8px 12px;border-radius:10px;
  font-size:15px;color:var(--ink-2);
  transition:color var(--t) var(--ease),background var(--t) var(--ease);
  white-space:nowrap;
}
.nav-link:hover{color:var(--ink-1);background:rgba(255,255,255,.05)}
.nav-link.active{color:var(--ink-1)}
.nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--accent),rgba(47,123,255,.9));
  box-shadow:0 0 10px rgba(43,232,196,.65);
}
.header-actions{display:flex;align-items:center;gap:12px;flex:none}
.nav-search{
  display:flex;align-items:center;gap:8px;
  width:220px;height:40px;padding:0 12px;
  border-radius:12px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  transition:border-color var(--t) var(--ease),box-shadow var(--t) var(--ease),background var(--t) var(--ease);
}
.nav-search i{font-size:13px;color:var(--ink-3)}
.nav-search input{
  flex:1;min-width:0;border:0;background:transparent;color:var(--ink-1);
  font-size:13px;line-height:1;padding:6px 0;
}
.nav-search input::placeholder{color:var(--ink-3)}
.nav-search input:focus{outline:none}
.nav-search:focus-within{
  border-color:rgba(43,232,196,.55);
  box-shadow:0 0 0 3px rgba(43,232,196,.12);
  background:rgba(255,255,255,.075);
}
.nav-login{
  font-size:14px;color:var(--ink-2);padding:8px 6px;border-radius:8px;
  transition:color var(--t) var(--ease);
}
.nav-login:hover{color:var(--ink-1)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:rgba(255,255,255,.06);border:1px solid var(--line);
  color:var(--ink-1);font-size:16px;cursor:pointer;
  align-items:center;justify-content:center;
}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:500;
  border:1px solid transparent;cursor:pointer;
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease),background var(--t) var(--ease),border-color var(--t) var(--ease),color var(--t) var(--ease);
}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;border-radius:10px}
.btn-glow{
  color:#04121A;
  background:linear-gradient(135deg,#2BE8C4,#38C8FF);
  box-shadow:var(--glow);
  font-weight:700;
}
.btn-glow:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(43,232,196,.5),0 14px 34px -10px rgba(43,232,196,.6)}
.btn-glow:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(43,232,196,.35)}
.btn-outline{
  color:var(--ink-1);
  background:rgba(255,255,255,.045);
  border-color:rgba(255,255,255,.16);
  backdrop-filter:blur(10px);
}
.btn-outline:hover{transform:translateY(-1px);border-color:var(--line-2);background:rgba(47,123,255,.12)}
.btn-outline:active{transform:translateY(1px)}
.btn-brand{
  color:#fff;background:linear-gradient(135deg,#2F7BFF,#1B54C4);
  box-shadow:0 12px 30px -14px rgba(47,123,255,.85);
}
.btn-brand:hover{transform:translateY(-1px);box-shadow:0 16px 36px -14px rgba(47,123,255,.95)}

/* 分类页横幅 */
.page-hero{
  position:relative;isolation:isolate;overflow:hidden;
  padding:64px 0 56px;
  min-height:46vh;display:flex;align-items:center;
  background-color:var(--bg-1);
  background-image:
    linear-gradient(90deg,rgba(7,11,20,.96) 0%,rgba(7,11,20,.80) 52%,rgba(7,11,20,.58) 100%),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center right;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.032) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.032) 1px,transparent 1px);
  background-size:32px 32px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 92%);
}
.page-hero::after{
  content:"";position:absolute;z-index:-1;right:-120px;top:-140px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(43,232,196,.20),transparent 66%);
  filter:blur(20px);pointer-events:none;
}
.hero-copy{max-width:640px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 12px;border-radius:999px;
  font-size:12px;letter-spacing:.08em;color:var(--accent);
  background:rgba(43,232,196,.10);
  border:1px solid rgba(43,232,196,.30);
  margin-bottom:18px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px var(--accent)}
.page-hero h1{
  font-size:var(--fs-h1);line-height:1.2;font-weight:700;letter-spacing:-.2px;
  margin:0 0 16px;
}
.page-hero h1 .hl{color:var(--accent)}
.hero-sub{font-size:18px;line-height:1.7;color:var(--ink-2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-stats{
  display:flex;flex-direction:column;gap:14px;
  margin-top:8px;
}
.stat-card{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--shadow-card);
  transition:transform var(--t) var(--ease),border-color var(--t) var(--ease);
}
.stat-card:hover{transform:translateY(-2px);border-color:var(--line-2)}
.stat-label{font-size:13px;color:var(--ink-3)}
.stat-value{
  font-size:24px;font-weight:700;color:var(--ink-1);
  font-variant-numeric:tabular-nums;letter-spacing:-.5px;
}
.stat-value small{font-size:13px;font-weight:500;color:var(--ink-2);margin-left:4px}

/* 通用板块 */
.section{padding:88px 0}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{
  font-size:var(--fs-h2);line-height:1.3;font-weight:700;letter-spacing:-.2px;
  margin:0 0 12px;
}
.section-head p{color:var(--ink-2);font-size:16px}
.tag-line{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 11px;border-radius:999px;
  font-size:12px;color:var(--ink-2);
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
}
.tag-accent{color:var(--accent);border-color:rgba(43,232,196,.30);background:rgba(43,232,196,.08)}
.tag-amber{color:#2A1A00;background:var(--accent-2);border-color:var(--accent-2);font-weight:700}

/* 导语 */
.lead-panel{
  padding:28px 30px;border-radius:var(--r-panel);
  background:linear-gradient(160deg,rgba(47,123,255,.10),rgba(255,255,255,.03));
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07);
}
.lead-panel p{color:var(--ink-2);font-size:16px;line-height:1.9;margin:0 0 14px}
.lead-panel p:last-child{margin-bottom:0}
.lead-panel strong{color:var(--ink-1);font-weight:700}

/* 场次卡片 */
.event-card{
  position:relative;display:flex;flex-direction:column;height:100%;
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform var(--t) var(--ease),border-color var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.event-card:hover{transform:translateY(-2px);border-color:var(--line-2);box-shadow:0 0 0 1px rgba(43,232,196,.20),0 26px 50px -26px rgba(0,0,0,.9)}
.event-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--bg-1)}
.event-media img{width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--ease)}
.event-card:hover .event-media img{transform:scale(1.03)}
.event-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.15),rgba(7,11,20,.72));
}
.event-badge{
  position:absolute;top:12px;left:12px;z-index:2;
  padding:4px 10px;border-radius:999px;font-size:12px;
  color:#04121A;background:var(--accent);font-weight:700;
  box-shadow:0 6px 16px -8px rgba(43,232,196,.9);
}
.event-badge.amber{background:var(--accent-2);color:#2A1A00}
.event-body{padding:20px;display:flex;flex-direction:column;flex:1 1 auto}
.event-body h3{font-size:17px;line-height:1.5;font-weight:700;margin:0 0 8px}
.event-body p{color:var(--ink-2);font-size:14px;line-height:1.8;margin:0 0 16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.event-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-3);margin-top:auto;
  padding-top:14px;border-top:1px solid var(--line);
}
.event-meta .sep{width:3px;height:3px;border-radius:50%;background:var(--ink-3)}
.event-link{color:var(--accent);font-size:13px;margin-left:auto;display:inline-flex;align-items:center;gap:6px}
.event-link i{font-size:11px;transition:transform var(--t) var(--ease)}
.event-card:hover .event-link i{transform:translateX(3px)}

/* 时间线 */
.timeline{position:relative;padding-left:28px}
.timeline::before{
  content:"";position:absolute;left:17px;top:8px;bottom:8px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,var(--line-2),rgba(43,232,196,.30),transparent);
}
.tl-item{position:relative;padding-left:34px;margin-bottom:24px}
.tl-item:last-child{margin-bottom:0}
.tl-num{
  position:absolute;left:-28px;top:0;
  width:36px;height:36px;border-radius:50%;
  display:grid;place-items:center;
  font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;
  color:var(--accent);
  background:var(--bg-2);
  border:1px solid rgba(43,232,196,.35);
  box-shadow:0 0 0 4px rgba(43,232,196,.07);
}
.tl-card{
  padding:20px 22px;border-radius:var(--r-card);
  background:rgba(255,255,255,.035);
  border:1px solid var(--line);
  transition:border-color var(--t) var(--ease),transform var(--t) var(--ease),background var(--t) var(--ease);
}
.tl-card:hover{border-color:var(--line-2);transform:translateY(-2px);background:rgba(47,123,255,.07)}
.tl-card h3{font-size:18px;font-weight:700;margin:0 0 8px}
.tl-card p{color:var(--ink-2);font-size:14.5px;line-height:1.8;margin:0}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}

/* 准备清单 */
.check-card{
  height:100%;padding:22px;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--bg-1);
  transition:border-color var(--t) var(--ease),transform var(--t) var(--ease);
}
.check-card:hover{border-color:var(--line-2);transform:translateY(-2px)}
.check-icon{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  color:var(--accent);font-size:16px;margin-bottom:14px;
  background:rgba(43,232,196,.10);border:1px solid rgba(43,232,196,.25);
}
.check-card h3{font-size:17px;font-weight:700;margin:0 0 8px}
.check-card p{color:var(--ink-2);font-size:14px;line-height:1.8;margin:0}

/* FAQ */
.faq-wrap{max-width:880px;margin:0 auto}
.faq-item{
  border:1px solid var(--line);border-radius:14px;
  background:rgba(255,255,255,.03);
  margin-bottom:12px;overflow:hidden;
  transition:border-color var(--t) var(--ease),background var(--t) var(--ease);
}
.faq-item:hover{border-color:var(--line-2)}
.faq-item.open{border-color:rgba(43,232,196,.35);background:rgba(43,232,196,.045)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 20px;
  background:transparent;border:0;cursor:pointer;text-align:left;
  color:var(--ink-1);font-size:16px;font-weight:600;line-height:1.6;
}
.faq-q .ic{
  flex:none;width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;font-size:12px;
  color:var(--accent);border:1px solid rgba(43,232,196,.35);
  transition:transform var(--t) var(--ease);
}
.faq-item.open .faq-q .ic{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms var(--ease)}
.faq-item.open .faq-a{max-height:420px}
.faq-a p{padding:0 20px 20px;color:var(--ink-2);font-size:15px;line-height:1.9;margin:0}

/* CTA */
.cta-panel{
  position:relative;overflow:hidden;
  padding:44px 40px;border-radius:var(--r-panel);
  background:
    radial-gradient(600px 220px at 88% 0%,rgba(43,232,196,.16),transparent 70%),
    linear-gradient(140deg,rgba(47,123,255,.16),rgba(255,255,255,.035));
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--shadow-card);
}
.cta-panel h2{font-size:28px;line-height:1.3;margin:0 0 12px}
.cta-panel p{color:var(--ink-2);font-size:15.5px;max-width:560px;margin:0 0 22px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-list{display:flex;flex-direction:column;gap:12px;margin-top:6px}
.cta-list li{display:flex;gap:10px;color:var(--ink-2);font-size:14.5px;align-items:flex-start}
.cta-list i{color:var(--accent);margin-top:6px;font-size:12px}

/* 面包屑 */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);padding:18px 0 0}
.crumb a{color:var(--ink-2)}
.crumb a:hover{color:var(--accent)}
.crumb i{font-size:10px}

/* 页脚 */
.site-footer{background:var(--bg-0);border-top:1px solid var(--line);padding-top:72px;position:relative;overflow:hidden}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  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:32px 32px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.8),transparent 80%);
}
.footer-grid{
  position:relative;display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;padding-bottom:56px;
}
.footer-brand p{color:var(--ink-2);font-size:14.5px;line-height:1.85;margin:18px 0 20px;max-width:300px}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;font-size:15px;
  color:var(--ink-2);background:rgba(255,255,255,.045);
  border:1px solid var(--line);
  transition:color var(--t) var(--ease),border-color var(--t) var(--ease),transform var(--t) var(--ease);
}
.footer-social a:hover{color:var(--accent);border-color:rgba(43,232,196,.40);transform:translateY(-2px)}
.footer-col h3{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--ink-1);margin:0 0 16px}
.footer-col li{margin-bottom:10px}
.footer-col a{
  display:inline-block;font-size:14px;line-height:1.6;color:var(--ink-2);
  transition:color var(--t) var(--ease),transform var(--t) var(--ease);
}
.footer-col a:hover{color:var(--ink-1);transform:translateX(2px)}
.footer-bottom{
  position:relative;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding:24px 0;border-top:1px solid var(--line);
}
.footer-bottom p{font-size:13px;color:var(--ink-3)}
.footer-bottom .tech{font-size:12px;color:var(--ink-3)}

@media screen and (max-width:1024px){
  .main-nav{
    position:fixed;left:0;right:0;top:72px;z-index:70;
    flex-direction:column;align-items:stretch;gap:0;
    padding:8px 16px 20px;
    background:rgba(7,11,20,.97);
    border-bottom:1px solid var(--line);
    max-height:calc(100vh - 72px);overflow-y:auto;
    display:none;
  }
  .main-nav.is-open{display:flex}
  .nav-link{font-size:16px;line-height:52px;padding:0 6px;border-radius:0;border-bottom:1px solid var(--line)}
  .nav-link.active::after{left:6px;right:auto;width:28px;bottom:8px}
  .nav-toggle{display:inline-flex}
  .nav-search{display:none}
  .header-inner{gap:16px}
  .main-nav{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:64px 0}
  .page-hero{padding:48px 0 44px;min-height:auto}
  .page-hero h1{font-size:34px}
}
@media screen and (max-width:640px){
  :root{--fs-h1:28px;--fs-h2:22px}
  .header-inner{height:60px}
  .main-nav{top:60px;max-height:calc(100vh - 60px)}
  .brand-top{font-size:15px}
  .brand-icon{width:34px;height:34px;font-size:15px}
  .nav-cta{display:none}
  .nav-login{font-size:14px}
  .page-hero h1{font-size:28px;line-height:1.3}
  .hero-sub{font-size:15.5px}
  .hero-actions .btn{flex:1 1 100%}
  .section{padding:48px 0}
  .lead-panel{padding:22px}
  .cta-panel{padding:28px 22px}
  .cta-panel h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:40px}
  .timeline{padding-left:22px}
  .timeline::before{left:13px}
  .tl-num{left:-22px;width:30px;height:30px;font-size:12px}
  .tl-item{padding-left:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: article */
:root{
  --bg-0:#070B14;
  --bg-1:#0C1524;
  --bg-2:#111D31;
  --brand:#2F7BFF;
  --brand-deep:#1E5FD8;
  --accent:#2BE8C4;
  --accent-2:#FFB63D;
  --ink-1:#EAF1FB;
  --ink-2:#9FB0C9;
  --ink-3:#6B7C96;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(47,123,255,.35);
  --shadow-card:0 18px 44px -22px rgba(0,0,0,.75);
  --container:1200px;
  --radius-card:18px;
  --radius-panel:20px;
  --radius-btn:12px;
  --fs-h1:44px;
  --fs-h2:30px;
  --fs-h3:20px;
  --lh-body:1.85;
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB","Source Han Sans SC",sans-serif;
  --font-mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,"Courier New",monospace;
  --sec-y:88px;
  --header-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--ink-1);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:var(--lh-body);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.030) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.030) 1px,transparent 1px);
  background-size:32px 32px;
  opacity:.55;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0}
img{max-width:100%;height:auto;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;background:none;border:0;color:inherit}
input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.container{
  position:relative;
  z-index:1;
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:11px 20px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:500;
  line-height:1.2;
  white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
}
.btn-sm{min-height:40px;padding:9px 16px;font-size:14px;border-radius:10px}
.btn-glow{
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#fff;
  box-shadow:0 8px 26px -10px rgba(47,123,255,.9),inset 0 1px 0 rgba(255,255,255,.22);
}
.btn-glow:hover{
  transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(43,232,196,.5),0 12px 30px -10px rgba(43,232,196,.55);
  color:#fff;
}
.btn-glow:active{transform:translateY(1px);box-shadow:0 4px 14px -8px rgba(47,123,255,.8)}
.btn-outline{
  background:rgba(255,255,255,.045);
  border-color:var(--line);
  color:var(--ink-1);
}
.btn-outline:hover{
  border-color:var(--line-2);
  background:rgba(255,255,255,.075);
  transform:translateY(-1px);
  color:#fff;
}
.btn-outline:active{transform:translateY(1px)}
.btn-block{width:100%}
/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(7,11,20,.72);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
  transition:background .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-stuck{
  background:rgba(7,11,20,.92);
  box-shadow:0 10px 34px -22px rgba(0,0,0,.95);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:22px;
  height:var(--header-h);
}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-icon{
  width:36px;height:36px;
  display:grid;place-items:center;
  border-radius:11px;
  background:linear-gradient(140deg,rgba(47,123,255,.32),rgba(43,232,196,.16));
  border:1px solid rgba(43,232,196,.3);
  color:var(--accent);
  font-size:15px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.12);
}
.brand-text{display:block;line-height:1.1}
.brand-top{display:block;font-size:16px;font-weight:700;letter-spacing:-.2px;color:#fff}
.brand-bottom{display:block;font-size:10px;letter-spacing:.22em;color:var(--ink-2);margin-top:3px}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-link{
  position:relative;
  display:inline-block;
  padding:8px 11px;
  font-size:15px;
  color:var(--ink-2);
  border-radius:8px;
  transition:color .24s var(--ease),background .24s var(--ease);
}
.nav-link:hover{color:var(--ink-1);background:rgba(255,255,255,.05)}
.nav-link.active{color:#fff}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:11px;right:11px;bottom:1px;
  height:2px;border-radius:2px;
  background:var(--accent);
  box-shadow:0 0 10px rgba(43,232,196,.8);
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-search{
  display:flex;align-items:center;gap:8px;
  width:220px;height:40px;
  padding:0 12px;
  border-radius:12px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  color:var(--ink-3);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease);
}
.nav-search i{font-size:13px;flex:none}
.nav-search input{
  width:100%;height:100%;
  background:transparent;border:0;outline:0;
  font-size:13px;color:var(--ink-1);
}
.nav-search input::placeholder{color:var(--ink-3)}
.nav-search:focus-within{
  border-color:rgba(43,232,196,.5);
  background:rgba(255,255,255,.07);
  box-shadow:0 0 0 3px rgba(43,232,196,.13);
}
.nav-login{
  font-size:14px;color:var(--ink-2);
  padding:8px 4px;
  transition:color .22s var(--ease);
}
.nav-login:hover{color:#fff}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  place-items:center;
  border-radius:11px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.05);
  color:var(--ink-1);
  font-size:16px;
}
/* ---------- 页面主体 ---------- */
.page-main{
  position:relative;
  z-index:1;
  padding:26px 0 0;
  background:
    radial-gradient(1200px 420px at 78% -12%,rgba(47,123,255,.16),transparent 62%),
    radial-gradient(760px 320px at 4% 0%,rgba(43,232,196,.085),transparent 60%);
}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--ink-3);
  padding:6px 0 0;
}
.breadcrumb a{color:var(--ink-3);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:rgba(255,255,255,.22)}
.breadcrumb .current{
  color:var(--ink-2);
  max-width:320px;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.article-head{
  padding:28px 0 26px;
  border-bottom:1px solid var(--line);
  margin-bottom:34px;
}
.article-badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;
  border-radius:999px;
  font-size:12px;letter-spacing:.06em;
  color:var(--accent);
  background:rgba(43,232,196,.1);
  border:1px solid rgba(43,232,196,.3);
}
.article-badge i{font-size:11px}
.article-title{
  font-size:clamp(26px,4.2vw,44px);
  line-height:1.24;
  font-weight:700;
  letter-spacing:-.3px;
  color:#fff;
  margin:16px 0 18px;
  overflow-wrap:break-word;
  word-break:break-word;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13px;color:var(--ink-3);
}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--ink-3);opacity:.65;flex:none}
.article-meta .item{display:inline-flex;align-items:center;gap:6px}
.article-meta i{color:var(--accent);font-size:12px}
.article-layout{margin-bottom:8px}
.article-main{min-width:0}
.article-side{min-width:0}
/* ---------- 正文排版 ---------- */
.article-body{
  max-width:760px;
  font-size:17px;
  line-height:1.9;
  color:#CBD8EA;
  overflow-wrap:break-word;
  word-break:break-word;
  overflow-x:auto;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 20px}
.article-body h2{
  position:relative;
  font-size:22px;
  line-height:1.45;
  font-weight:700;
  color:#fff;
  margin:38px 0 16px;
  padding-left:14px;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:5px;bottom:5px;
  width:4px;border-radius:3px;
  background:linear-gradient(180deg,var(--brand),var(--accent));
}
.article-body h3{
  font-size:18px;
  font-weight:700;
  color:var(--ink-1);
  margin:28px 0 12px;
}
.article-body h4{font-size:16px;font-weight:700;color:var(--ink-1);margin:22px 0 10px}
.article-body a{color:var(--accent);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{color:#fff}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px}
.article-body li{margin-bottom:8px}
.article-body ul li::marker{color:var(--accent)}
.article-body ol li::marker{color:var(--accent);font-family:var(--font-mono)}
.article-body blockquote{
  margin:24px 0;
  padding:16px 20px;
  border-left:3px solid var(--accent);
  background:rgba(255,255,255,.045);
  border-radius:0 12px 12px 0;
  color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:14px;margin:26px auto}
.article-body figure{margin:26px 0}
.article-body figcaption{text-align:center;font-size:12px;color:var(--ink-3);margin-top:10px}
.article-body code{
  padding:2px 6px;
  border-radius:6px;
  background:rgba(255,255,255,.08);
  font-family:var(--font-mono);
  font-size:.92em;
  color:var(--accent);
}
.article-body pre{
  margin:0 0 20px;
  padding:16px 18px;
  border-radius:12px;
  background:#0A111E;
  border:1px solid var(--line);
  overflow-x:auto;
}
.article-body pre code{background:none;padding:0;color:var(--ink-1)}
.article-body table{width:100%;min-width:520px;border-collapse:collapse;font-size:15px;margin:0 0 22px}
.article-body th{
  background:rgba(255,255,255,.06);
  font-weight:600;
  text-align:left;
  color:var(--ink-1);
}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line)}
.article-body tr:last-child td{border-bottom:0}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px}
.tag{
  display:inline-flex;align-items:center;
  padding:6px 14px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  font-size:12px;
  color:var(--ink-2);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.tag:hover{color:var(--accent);border-color:rgba(43,232,196,.45);background:rgba(43,232,196,.08)}
.empty-state{
  padding:64px 24px;
  text-align:center;
  border:1px dashed var(--line);
  border-radius:var(--radius-panel);
  background:rgba(255,255,255,.03);
}
.empty-state i{font-size:26px;color:var(--ink-3);margin-bottom:14px;display:block}
.empty-state strong{display:block;font-size:18px;color:var(--ink-1);margin-bottom:8px}
.empty-state p{font-size:14px;color:var(--ink-3);margin:0 0 20px}
/* ---------- 侧栏 ---------- */
.side-sticky{position:sticky;top:96px;display:grid;gap:20px}
.side-card{
  padding:20px;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:rgba(255,255,255,.045);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07),var(--shadow-card);
}
.side-title{
  display:flex;align-items:center;gap:8px;
  font-size:14px;font-weight:700;
  letter-spacing:.08em;
  color:var(--ink-1);
  margin:0 0 14px;
}
.side-title::before{
  content:"";
  width:3px;height:14px;border-radius:2px;
  background:linear-gradient(180deg,var(--brand),var(--accent));
}
.side-list{list-style:none;margin:0;padding:0}
.side-list li + li{border-top:1px solid var(--line)}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 2px;
  font-size:14px;
  color:var(--ink-2);
  transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.side-list a:hover{color:var(--accent);padding-left:6px}
.side-list i{font-size:11px;color:var(--ink-3)}
.rank-list{list-style:none;margin:0;padding:0}
.rank-item + .rank-item{margin-top:14px;padding-top:14px;border-top:1px solid var(--line)}
.rank-item a{display:flex;gap:12px;align-items:flex-start}
.rank-num{
  flex:none;width:26px;height:26px;margin-top:2px;
  display:grid;place-items:center;
  border-radius:8px;
  font-family:var(--font-mono);
  font-size:13px;font-weight:600;
  color:var(--accent);
  background:rgba(43,232,196,.1);
  border:1px solid rgba(43,232,196,.22);
}
.rank-body{min-width:0}
.rank-title{display:block;font-size:14px;line-height:1.55;color:var(--ink-1);transition:color .2s var(--ease)}
.rank-item a:hover .rank-title{color:var(--accent)}
.rank-meta{display:block;font-size:12px;color:var(--ink-3);margin-top:5px}
/* ---------- 底部相关内容 ---------- */
.section-plain{padding:52px 0 0}
.block-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:16px;margin-bottom:24px;
}
.block-head h2{
  font-size:24px;line-height:1.35;font-weight:700;color:#fff;letter-spacing:-.2px;
}
.block-head .more{font-size:14px;color:var(--ink-2);transition:color .2s var(--ease)}
.block-head .more:hover{color:var(--accent)}
.next-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.next-card{
  display:block;
  padding:22px;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:rgba(255,255,255,.035);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease);
}
.next-card:hover{
  transform:translateY(-2px);
  border-color:var(--line-2);
  background:rgba(255,255,255,.055);
  box-shadow:var(--shadow-card),0 0 0 1px rgba(43,232,196,.2);
}
.next-card .eyebrow{display:block;font-size:12px;letter-spacing:.1em;color:var(--ink-3);margin-bottom:9px}
.next-card h3{font-size:17px;line-height:1.5;color:#fff;margin-bottom:8px;font-weight:700}
.next-card p{font-size:14px;line-height:1.7;color:var(--ink-2);margin:0}
.reco-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.reco-card{
  display:block;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:var(--bg-2);
  overflow:hidden;
  transition:transform .26s var(--ease),border-color .26s var(--ease),box-shadow .26s var(--ease);
}
.reco-card:hover{transform:translateY(-3px);border-color:var(--line-2);box-shadow:var(--shadow-card)}
.reco-media{display:block;aspect-ratio:16/10;overflow:hidden;background:linear-gradient(140deg,#0F1B2C,#0A1220)}
.reco-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease)}
.reco-card:hover .reco-media img{transform:scale(1.04)}
.reco-body{padding:18px}
.reco-body .mini-badge{
  display:inline-block;
  padding:3px 10px;
  border-radius:999px;
  font-size:11px;
  letter-spacing:.05em;
  color:var(--accent);
  background:rgba(43,232,196,.1);
  border:1px solid rgba(43,232,196,.24);
  margin-bottom:10px;
}
.reco-body h3{font-size:16px;line-height:1.55;color:var(--ink-1);font-weight:700;margin-bottom:10px}
.reco-body .meta{font-size:12px;color:var(--ink-3)}
/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  z-index:1;
  margin-top:88px;
  padding-top:72px;
  border-top:1px solid var(--line);
  background:var(--bg-1);
  background-image:
    linear-gradient(rgba(255,255,255,.02) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.02) 1px,transparent 1px);
  background-size:32px 32px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--ink-2);max-width:320px;margin-bottom:20px}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid var(--line);
  color:var(--ink-2);
  font-size:14px;
  transition:color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease),background .22s var(--ease);
}
.footer-social a:hover{
  color:var(--accent);
  border-color:rgba(43,232,196,.45);
  background:rgba(43,232,196,.08);
  transform:translateY(-2px);
}
.footer-col h3{
  font-size:13px;
  font-weight:700;
  letter-spacing:.12em;
  color:var(--ink-1);
  margin-bottom:14px;
}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{margin-bottom:6px}
.footer-col a{
  display:inline-block;
  font-size:14px;
  line-height:2;
  color:var(--ink-3);
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-col a:hover{color:var(--ink-1);transform:translateX(2px)}
.footer-bottom{
  margin-top:56px;
  padding:24px 0;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
  font-size:13px;
  color:var(--ink-3);
}
.footer-bottom .tech{font-size:12px}
/* ---------- 响应式 ---------- */
@media screen and (min-width:1024px){
  .article-layout > .cell.article-main{padding-right:36px}
  .article-layout > .cell.article-side{padding-left:36px}
}
@media screen and (max-width:1023px){
  :root{--fs-h1:32px;--fs-h2:24px;--sec-y:64px;--header-h:64px}
  .container{padding:0 18px}
  .nav-search{display:none}
  .nav-toggle{display:grid}
  .nav-login{display:none}
  .main-nav{
    position:fixed;
    top:var(--header-h);
    left:0;right:0;bottom:0;
    display:block;
    margin-left:0;
    padding:16px 18px 48px;
    background:rgba(7,11,20,.98);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    border-top:1px solid var(--line);
    overflow-y:auto;
    opacity:0;
    transform:translateY(-10px);
    pointer-events:none;
    transition:opacity .24s var(--ease),transform .24s var(--ease);
  }
  .main-nav.is-open{opacity:1;transform:translateY(0);pointer-events:auto}
  .nav-link{
    display:block;
    font-size:16px;
    line-height:52px;
    padding:0 4px;
    border-bottom:1px solid var(--line);
    border-radius:0;
  }
  .nav-link:hover{background:transparent;color:var(--accent)}
  .nav-link.active::after{display:none}
  .nav-link.active{color:var(--accent)}
  .article-head{padding:22px 0 22px;margin-bottom:26px}
  .side-sticky{position:static;margin-top:36px}
  .reco-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1 / -1}
  .site-footer{margin-top:64px;padding-top:52px}
  .article-body{font-size:16px}
}
@media screen and (max-width:640px){
  :root{--fs-h1:28px}
  .container{padding:0 16px}
  .brand-top{font-size:15px}
  body{font-size:15px}
  .next-grid,
  .reco-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .block-head{flex-direction:column;align-items:flex-start;gap:8px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .article-meta{gap:8px}
  .article-body h2{font-size:20px}
  .article-body h3{font-size:17px}
  .breadcrumb .current{max-width:200px}
  .btn{min-height:44px}
}

/* roulang page: category2 */
:root{
  --bg-0:#070B14;
  --bg-1:#0C1524;
  --bg-2:#111D31;
  --brand:#2F7BFF;
  --accent:#2BE8C4;
  --accent-2:#FFB63D;
  --ink-1:#EAF1FB;
  --ink-2:#9FB0C9;
  --ink-3:#6B7C96;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(47,123,255,.35);
  --glass:rgba(255,255,255,.045);
  --glow:0 0 0 1px rgba(43,232,196,.35), 0 8px 28px -8px rgba(43,232,196,.45);
  --container:1200px;
  --r-card:18px;
  --r-panel:20px;
  --r-btn:12px;
  --shadow-card:0 18px 44px -22px rgba(0,0,0,.75);
  --fs-h1:44px;
  --fs-h2:30px;
  --fs-h3:20px;
  --fs-body:16px;
  --lh-body:1.85;
  --sp-section:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html,body{overflow-x:hidden;}
body{
  margin:0;
  padding:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:var(--fs-body);
  line-height:var(--lh-body);
  color:var(--ink-1);
  background:var(--bg-0);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:inherit;text-decoration:none;transition:color .22s cubic-bezier(.2,.7,.3,1);}
img{display:block;max-width:100%;height:auto;}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer;}
input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.grid-x.grid-padding-x{margin-left:-12px;margin-right:-12px;}
.grid-x.grid-padding-x > .cell{padding-left:12px;padding-right:12px;}
.mono{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  background:rgba(7,11,20,.74);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
  transition:background .24s cubic-bezier(.2,.7,.3,1), border-color .24s, box-shadow .24s;
}
.site-header.is-scrolled{
  background:rgba(7,11,20,.93);
  border-bottom-color:rgba(47,123,255,.28);
  box-shadow:0 14px 34px -22px rgba(0,0,0,.9);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:22px;
  height:72px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-icon{
  width:36px;height:36px;
  display:grid;place-items:center;
  border-radius:11px;
  color:var(--accent);
  font-size:16px;
  background:rgba(43,232,196,.08);
  border:1px solid rgba(43,232,196,.3);
  box-shadow:0 0 18px -8px rgba(43,232,196,.9);
  transition:transform .22s cubic-bezier(.2,.7,.3,1), box-shadow .22s;
}
.brand:hover .brand-icon{transform:translateY(-1px);box-shadow:0 0 22px -6px rgba(43,232,196,.9);}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-top{font-size:15px;font-weight:700;color:var(--ink-1);letter-spacing:-.2px;}
.brand-bottom{font-size:10px;color:var(--ink-3);letter-spacing:.16em;}
.main-nav{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  padding:8px 12px;
  font-size:15px;
  color:var(--ink-2);
  border-radius:10px;
  transition:color .22s cubic-bezier(.2,.7,.3,1), background .22s;
}
.nav-link:hover{color:var(--ink-1);background:rgba(255,255,255,.05);}
.nav-link.active{color:#fff;}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:1px;
  height:2px;border-radius:2px;
  background:var(--accent);
  box-shadow:0 0 12px rgba(43,232,196,.75);
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  width:220px;height:40px;
  padding:0 12px;
  border-radius:12px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  transition:border-color .22s, box-shadow .22s, background .22s;
}
.nav-search:focus-within{
  border-color:rgba(43,232,196,.55);
  box-shadow:var(--glow);
  background:rgba(255,255,255,.07);
}
.nav-search i{font-size:13px;color:var(--ink-3);}
.nav-search input{
  width:100%;height:100%;
  background:none;border:0;outline:none;
  font-size:14px;color:var(--ink-1);
}
.nav-search input::placeholder{color:var(--ink-3);}
.nav-login{font-size:15px;color:var(--ink-2);padding:8px 2px;}
.nav-login:hover{color:var(--ink-1);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;
  padding:12px 22px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;font-weight:500;
  transition:transform .22s cubic-bezier(.2,.7,.3,1), box-shadow .22s, background .22s, border-color .22s, color .22s;
}
.btn-glow{
  color:#fff;
  background:linear-gradient(135deg,#3A85FF 0%,#1B5FD9 100%);
  box-shadow:var(--glow);
}
.btn-glow:hover{transform:translateY(-1px);background:linear-gradient(135deg,#4A90FF 0%,#2468E0 100%);box-shadow:0 0 0 1px rgba(43,232,196,.5),0 12px 32px -8px rgba(43,232,196,.55);}
.btn-glow:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(43,232,196,.3);}
.btn-ghost{
  color:var(--ink-1);
  background:rgba(255,255,255,.045);
  border-color:var(--line);
  backdrop-filter:blur(14px);
}
.btn-ghost:hover{transform:translateY(-1px);border-color:var(--line-2);background:rgba(255,255,255,.08);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{min-height:40px;padding:9px 16px;font-size:14px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.05);
  color:var(--ink-1);
}
.nav-toggle:hover{border-color:var(--line-2);}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sp-section) 0;}
.section--alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:44px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;
  border-radius:999px;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--accent);
  background:rgba(43,232,196,.08);
  border:1px solid rgba(43,232,196,.28);
}
.eyebrow i{font-size:11px;}
.section-head h2{
  font-size:var(--fs-h2);
  line-height:1.3;
  font-weight:700;
  letter-spacing:-.2px;
  margin-top:16px;
}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:16px;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--accent);font-size:14px;position:relative;
}
.text-link::after{
  content:"";position:absolute;left:0;bottom:-2px;height:1px;width:0;
  background:var(--accent);transition:width .18s ease;
}
.text-link:hover::after{width:100%;}

/* ---------- 首屏 ---------- */
.page-hero{
  position:relative;
  padding:66px 0 62px;
  background-image:
    linear-gradient(90deg,rgba(7,11,20,.95) 0%,rgba(7,11,20,.8) 55%,rgba(7,11,20,.56) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center right;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:32px 32px;
  pointer-events:none;
}
.page-hero > .container{position:relative;z-index:1;}
.page-hero h1{
  font-size:var(--fs-h1);
  line-height:1.2;
  font-weight:700;
  letter-spacing:-.4px;
  margin-top:20px;
  max-width:15em;
}
.page-hero .lead{
  margin-top:16px;
  font-size:18px;
  line-height:1.7;
  color:var(--ink-2);
  max-width:35em;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-metrics{
  display:flex;flex-wrap:wrap;align-items:center;gap:22px;
  margin-top:40px;
}
.hero-metrics .metric{display:flex;flex-direction:column;gap:2px;position:relative;padding-right:22px;}
.hero-metrics .metric:not(:last-child)::after{
  content:"";position:absolute;right:0;top:6px;bottom:6px;width:1px;
  background:var(--line);
}
.metric-num{font-size:20px;font-weight:700;color:var(--ink-1);}
.metric-label{font-size:13px;color:var(--ink-3);}
.glass-card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card), inset 0 1px 0 rgba(255,255,255,.08);
  padding:26px;
  transition:transform .22s cubic-bezier(.2,.7,.3,1), border-color .22s, box-shadow .22s;
}
.glass-card:hover{transform:translateY(-2px);border-color:var(--line-2);}
.overview-card h2{
  font-size:18px;font-weight:700;letter-spacing:-.2px;margin-top:14px;
}
.overview-list{margin-top:18px;display:flex;flex-direction:column;}
.overview-list li{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:12px 0;
  border-bottom:1px solid var(--line);
  font-size:14px;
}
.overview-list li:last-child{border-bottom:0;}
.overview-list .k{color:var(--ink-3);}
.overview-list .v{color:var(--ink-1);font-weight:500;text-align:right;}
.overview-card .btn{width:100%;margin-top:20px;}

/* ---------- 准备清单 ---------- */
.prep-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.prep-card{
  padding:26px;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:rgba(255,255,255,.03);
  transition:transform .22s cubic-bezier(.2,.7,.3,1), border-color .22s, background .22s;
}
.prep-card:hover{transform:translateY(-2px);border-color:var(--line-2);background:rgba(255,255,255,.05);}
.prep-icon{
  width:42px;height:42px;border-radius:12px;
  display:grid;place-items:center;
  color:var(--accent);font-size:16px;
  background:rgba(43,232,196,.08);
  border:1px solid rgba(43,232,196,.26);
}
.prep-card h3{font-size:17px;font-weight:700;margin-top:16px;letter-spacing:-.2px;}
.prep-card p{margin-top:10px;font-size:14.5px;color:var(--ink-2);}

/* ---------- 步骤区 ---------- */
.step-layout{margin-top:8px;}
.toc-wrap{position:sticky;top:96px;}
.toc-card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card), inset 0 1px 0 rgba(255,255,255,.08);
  padding:22px;
}
.toc-card h2{font-size:15px;font-weight:700;letter-spacing:.06em;color:var(--ink-1);}
.toc-list{margin-top:14px;display:flex;flex-direction:column;gap:2px;}
.toc-list a{
  display:flex;align-items:center;gap:10px;
  padding:10px 10px;
  border-radius:10px;
  font-size:14px;
  color:var(--ink-2);
  transition:background .2s, color .2s, transform .2s;
}
.toc-list a:hover{background:rgba(255,255,255,.06);color:var(--ink-1);transform:translateX(2px);}
.toc-list .idx{
  width:22px;height:22px;flex:0 0 22px;
  display:grid;place-items:center;
  font-size:11px;font-weight:700;
  color:var(--accent);
  border-radius:7px;
  background:rgba(43,232,196,.1);
  border:1px solid rgba(43,232,196,.24);
}
.toc-note{
  margin-top:16px;padding-top:14px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--ink-3);line-height:1.7;
}
.step-intro{
  padding:22px 24px;
  border-left:3px solid var(--brand);
  border-radius:0 var(--r-card) var(--r-card) 0;
  background:rgba(47,123,255,.08);
  color:var(--ink-2);
  font-size:15px;
  margin-bottom:24px;
}
.figure-block{
  margin-bottom:28px;
  border-radius:14px;
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--bg-2);
}
.figure-block img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.figure-block figcaption{
  padding:10px 16px;font-size:12.5px;color:var(--ink-3);text-align:center;
  border-top:1px solid var(--line);
}
.step-item{
  display:flex;gap:20px;
  padding:24px;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:rgba(255,255,255,.03);
  transition:transform .22s cubic-bezier(.2,.7,.3,1), border-color .22s, background .22s;
  scroll-margin-top:110px;
}
.step-item + .step-item{margin-top:20px;}
.step-item:hover{transform:translateY(-2px);border-color:var(--line-2);background:rgba(255,255,255,.05);}
.step-badge{
  flex:0 0 48px;width:48px;height:48px;
  display:grid;place-items:center;
  border-radius:50%;
  font-size:16px;font-weight:700;
  color:var(--accent);
  background:rgba(43,232,196,.08);
  border:1px solid rgba(43,232,196,.32);
  box-shadow:0 0 18px -8px rgba(43,232,196,.9);
}
.step-body h3{font-size:18px;font-weight:700;letter-spacing:-.2px;}
.step-body p{margin-top:10px;color:var(--ink-2);font-size:15px;}
.tip{
  margin-top:14px;
  padding:10px 14px;
  border-left:3px solid var(--accent);
  border-radius:0 10px 10px 0;
  background:rgba(43,232,196,.06);
  font-size:14px;
  color:var(--ink-2);
}
.tip i{color:var(--accent);margin-right:8px;}

/* ---------- 登录后常用 ---------- */
.action-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.action-card{
  display:block;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:rgba(255,255,255,.03);
  overflow:hidden;
  transition:transform .22s cubic-bezier(.2,.7,.3,1), border-color .22s, box-shadow .22s;
}
.action-card:hover{transform:translateY(-3px);border-color:var(--line-2);box-shadow:var(--shadow-card);}
.action-card figure{margin:0;overflow:hidden;position:relative;background:var(--bg-2);}
.action-card img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s cubic-bezier(.2,.7,.3,1);}
.action-card:hover img{transform:scale(1.03);}
.action-body{padding:20px;}
.badge{
  display:inline-flex;align-items:center;
  padding:4px 10px;
  border-radius:999px;
  font-size:12px;
  color:var(--accent);
  background:rgba(43,232,196,.1);
  border:1px solid rgba(43,232,196,.24);
}
.action-body h3{font-size:17px;font-weight:700;margin-top:12px;letter-spacing:-.2px;}
.action-body p{margin-top:8px;font-size:14px;color:var(--ink-2);}
.action-body .more{margin-top:14px;font-size:13px;color:var(--accent);display:inline-flex;gap:6px;align-items:center;}

/* ---------- 异常对照 ---------- */
.issue-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.issue-card{
  padding:24px;
  border:1px solid var(--line);
  border-left:3px solid rgba(255,182,61,.65);
  border-radius:var(--r-card);
  background:rgba(255,255,255,.03);
  transition:transform .22s cubic-bezier(.2,.7,.3,1), border-color .22s, background .22s;
}
.issue-card:hover{transform:translateY(-2px);background:rgba(255,255,255,.05);border-color:var(--line-2);border-left-color:var(--accent-2);}
.issue-card h3{font-size:16.5px;font-weight:700;letter-spacing:-.2px;}
.issue-card p{margin-top:10px;font-size:14.5px;color:var(--ink-2);}
.issue-card .who{margin-top:14px;font-size:12.5px;color:var(--ink-3);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;}
.faq-item{
  border:1px solid var(--line);
  border-radius:14px;
  background:rgba(255,255,255,.03);
  overflow:hidden;
  transition:border-color .22s, background .22s;
}
.faq-item + .faq-item{margin-top:14px;}
.faq-item:hover{border-color:var(--line-2);}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;
  padding:12px 20px;
  text-align:left;
  font-size:16px;
  color:var(--ink-1);
  font-weight:500;
}
.faq-icon{
  flex:0 0 auto;
  width:26px;height:26px;
  display:grid;place-items:center;
  border-radius:8px;
  color:var(--accent);
  background:rgba(43,232,196,.1);
  border:1px solid rgba(43,232,196,.24);
  font-size:12px;
  transition:transform .24s cubic-bezier(.2,.7,.3,1);
}
.faq-a{
  max-height:0;
  overflow:hidden;
  padding:0 20px;
  font-size:15px;
  color:var(--ink-2);
  line-height:1.9;
  transition:max-height .3s ease, padding .3s ease;
}
.faq-item.is-open{border-color:rgba(43,232,196,.35);background:rgba(43,232,196,.04);}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-item.is-open .faq-a{max-height:340px;padding-bottom:20px;}

/* ---------- CTA ---------- */
.cta-card{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
  padding:38px;
  border-radius:var(--r-panel);
  border:1px solid rgba(43,232,196,.26);
  background:
    radial-gradient(600px 220px at 12% 0%,rgba(47,123,255,.18),transparent 70%),
    radial-gradient(500px 220px at 88% 100%,rgba(43,232,196,.14),transparent 70%),
    var(--bg-2);
  box-shadow:var(--shadow-card);
}
.cta-card h2{font-size:26px;font-weight:700;letter-spacing:-.3px;}
.cta-card p{margin-top:12px;color:var(--ink-2);font-size:15px;max-width:46em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-meta{margin-top:16px;font-size:12.5px;color:var(--ink-3);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--bg-1);
  border-top:1px solid var(--line);
  padding-top:72px;
  position:relative;
  overflow:hidden;
}
.site-footer::before{
  content:"";
  position:absolute;inset: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:32px 32px;
  pointer-events:none;
}
.site-footer > .container{position:relative;z-index:1;}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:52px;
}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--ink-2);max-width:24em;}
.footer-social{display:flex;gap:10px;margin-top:20px;}
.footer-social a{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--ink-2);
  font-size:14px;
  transition:color .22s, border-color .22s, transform .22s;
}
.footer-social a:hover{color:var(--accent);border-color:rgba(43,232,196,.4);transform:translateY(-2px);}
.footer-col h3{font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--ink-1);}
.footer-col ul{margin-top:16px;display:flex;flex-direction:column;gap:0;}
.footer-col li a{
  display:inline-block;
  font-size:14px;line-height:34px;color:var(--ink-2);
  transition:color .2s, transform .2s;
}
.footer-col li a:hover{color:var(--ink-1);transform:translateX(2px);}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding:24px 0;
  border-top:1px solid var(--line);
}
.footer-bottom p{font-size:13px;color:var(--ink-3);}
.footer-bottom .tech{font-size:12.5px;color:var(--ink-3);}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  :root{--fs-h1:34px;--fs-h2:24px;--sp-section:64px;}
  .header-inner{height:60px;gap:12px;}
  .main-nav{
    position:absolute;
    top:100%;left:0;right:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:8px 20px 20px;
    background:rgba(9,14,24,.98);
    backdrop-filter:blur(18px);
    border-bottom:1px solid var(--line);
    max-height:calc(100vh - 60px);
    overflow-y:auto;
  }
  .main-nav.is-open{display:flex;}
  .nav-link{padding:14px 4px;font-size:16px;line-height:1.5;border-radius:0;border-bottom:1px solid var(--line);}
  .nav-link.active::after{display:none;}
  .nav-link.active{color:var(--accent);}
  .nav-search{display:none;}
  .nav-login{display:none;}
  .nav-toggle{display:inline-flex;}
  .prep-grid,.action-grid,.issue-grid{grid-template-columns:1fr;}
  .toc-wrap{position:static;margin-bottom:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .page-hero{padding:48px 0 44px;}
  .overview-card{margin-top:28px;}
  .step-layout .glass-card{margin-bottom:24px;}
}
@media screen and (max-width:640px){
  :root{--fs-h1:28px;--fs-h2:22px;--sp-section:48px;}
  .container{padding:0 16px;}
  .page-hero h1{font-size:28px;}
  .page-hero .lead{font-size:16px;}
  .hero-metrics{gap:16px;}
  .hero-metrics .metric{padding-right:16px;}
  .metric-num{font-size:17px;}
  .metric-label{font-size:12px;}
  .btn{width:100%;}
  .hero-actions{flex-direction:column;}
  .header-actions{gap:8px;}
  .nav-cta{font-size:13px;padding:8px 12px;min-height:38px;width:auto;}
  .step-item{flex-direction:column;padding:20px;}
  .step-badge{width:42px;height:42px;flex:0 0 42px;font-size:15px;}
  .cta-card{padding:26px;}
  .cta-card h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .faq-q{font-size:15px;padding:12px 16px;}
  .faq-a{padding:0 16px;}
}

/* roulang page: category3 */
:root{
  --bg-0:#070B14;
  --bg-1:#0C1524;
  --bg-2:#111D31;
  --brand:#2F7BFF;
  --accent:#2BE8C4;
  --accent-2:#FFB63D;
  --ink-1:#EAF1FB;
  --ink-2:#9FB0C9;
  --ink-3:#6B7C96;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(47,123,255,.35);
  --glow:0 0 0 1px rgba(43,232,196,.35), 0 8px 28px -8px rgba(43,232,196,.45);
  --container:1200px;
  --fs-h1:44px;
  --fs-h2:30px;
  --fs-h3:20px;
  --fs-body:16px;
  --lh-body:1.85;
  --r-card:18px;
  --r-panel:20px;
  --r-btn:12px;
  --r-badge:999px;
  --shadow-card:0 18px 44px -22px rgba(0,0,0,.75);
  --glass:rgba(255,255,255,.045);
  --ease:cubic-bezier(.2,.7,.3,1);
  --pad-section:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html,body{overflow-x:hidden;max-width:100%;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--ink-1);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:var(--fs-body);
  line-height:var(--lh-body);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
  border-radius:6px;
}
button{font-family:inherit;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:900;
  background:rgba(7,11,20,.72);
  border-bottom:1px solid transparent;
  transition:background .25s var(--ease),border-color .25s var(--ease),backdrop-filter .25s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(7,11,20,.86);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom-color:var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-icon{
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:10px;
  background:linear-gradient(150deg,rgba(47,123,255,.28),rgba(43,232,196,.16));
  border:1px solid var(--line);
  color:var(--accent);
  font-size:15px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-top{font-size:15px;font-weight:700;letter-spacing:-.2px;color:var(--ink-1);}
.brand-bottom{font-size:10px;letter-spacing:.16em;color:var(--ink-3);}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:8px;
}
.nav-link{
  position:relative;
  padding:8px 12px;
  font-size:15px;
  color:var(--ink-2);
  border-radius:10px;
  transition:color .22s var(--ease),background .22s var(--ease);
}
.nav-link:hover{color:var(--ink-1);background:rgba(255,255,255,.04);}
.nav-link.active{color:var(--accent);}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:0;
  height:2px;
  border-radius:2px;
  background:var(--accent);
  box-shadow:0 0 10px rgba(43,232,196,.7);
}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:auto;
}
.nav-search{
  position:relative;
  display:flex;
  align-items:center;
  width:220px;
  height:38px;
  padding:0 12px;
  border-radius:var(--r-btn);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.nav-search:focus-within{
  border-color:rgba(43,232,196,.5);
  box-shadow:0 0 0 3px rgba(43,232,196,.12);
}
.nav-search i{color:var(--ink-3);font-size:13px;}
.nav-search input{
  flex:1;
  min-width:0;
  margin-left:8px;
  background:transparent;
  border:0;
  color:var(--ink-1);
  font-size:13px;
}
.nav-search input::placeholder{color:var(--ink-3);}
.nav-search input:focus{outline:none;}
.nav-login{
  font-size:14px;
  color:var(--ink-2);
  padding:8px 4px;
}
.nav-login:hover{color:var(--ink-1);}
.nav-cta{
  padding:9px 18px;
  font-size:14px;
}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.05);
  color:var(--ink-1);
  font-size:16px;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:12px 24px;
  font-size:15px;
  font-weight:500;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
  white-space:nowrap;
}
.btn-sm{min-height:38px;padding:8px 16px;font-size:14px;}
.btn-glow{
  background:linear-gradient(135deg,#3C8BFF,#2F7BFF);
  color:#fff;
  box-shadow:var(--glow);
}
.btn-glow:hover{
  transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(43,232,196,.5),0 12px 32px -8px rgba(43,232,196,.55);
  filter:brightness(1.06);
  color:#fff;
}
.btn-glow:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{
  background:var(--glass);
  border-color:rgba(255,255,255,.16);
  color:var(--ink-1);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{
  border-color:rgba(43,232,196,.45);
  transform:translateY(-1px);
  color:var(--ink-1);
}
.btn-ghost:active{transform:translateY(0);}

/* ---------- 通用板块 ---------- */
.section{padding:var(--pad-section) 0;}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{margin-bottom:40px;max-width:760px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 12px;
  border-radius:var(--r-badge);
  background:rgba(43,232,196,.08);
  border:1px solid rgba(43,232,196,.24);
  color:var(--accent);
  font-size:12px;
  letter-spacing:.06em;
  margin-bottom:16px;
}
.eyebrow::before{
  content:"";
  width:6px;height:6px;border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 8px rgba(43,232,196,.9);
}
h1{font-size:var(--fs-h1);line-height:1.2;font-weight:700;letter-spacing:-.2px;}
h2{font-size:var(--fs-h2);line-height:1.3;font-weight:700;letter-spacing:-.2px;}
h3{font-size:var(--fs-h3);font-weight:700;line-height:1.5;}
.section-head p{margin-top:12px;color:var(--ink-2);font-size:16px;}

/* ---------- 页面横幅 ---------- */
.page-hero{
  position:relative;
  padding:64px 0 56px;
  background-image:
    linear-gradient(90deg,rgba(7,11,20,.95) 0%,rgba(7,11,20,.78) 55%,rgba(7,11,20,.55) 100%),
    url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center right;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset: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:32px 32px;
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.hero-grid{display:flex;align-items:flex-end;gap:48px;flex-wrap:wrap;}
.hero-main{flex:1 1 560px;min-width:0;}
.hero-main h1{margin-bottom:16px;}
.hero-main p{color:var(--ink-2);font-size:17px;line-height:1.75;max-width:600px;}
.hero-stats{
  flex:0 0 380px;
  display:flex;
  gap:0;
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  background:var(--glass);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  overflow:hidden;
}
.hero-stats .stat{
  flex:1;
  padding:20px 14px;
  text-align:center;
  border-right:1px solid var(--line);
}
.hero-stats .stat:last-child{border-right:0;}
.hero-stats .stat b{
  display:block;
  font-size:24px;
  font-weight:700;
  color:var(--accent);
  letter-spacing:-.4px;
  font-variant-numeric:tabular-nums;
}
.hero-stats .stat span{
  display:block;
  margin-top:6px;
  font-size:12px;
  color:var(--ink-3);
}

/* ---------- 标签筛选 ---------- */
.filter-bar{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  padding:24px 0 0;
  border-top:1px solid var(--line);
  margin-top:40px;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:8px 16px;
  border-radius:var(--r-badge);
  border:1px solid var(--line);
  background:rgba(255,255,255,.035);
  color:var(--ink-2);
  font-size:13px;
  transition:all .22s var(--ease);
}
.chip:hover{color:var(--ink-1);border-color:rgba(47,123,255,.5);}
.chip.is-active{
  background:rgba(47,123,255,.16);
  border-color:rgba(47,123,255,.55);
  color:#fff;
  box-shadow:0 0 0 1px rgba(47,123,255,.25);
}

/* ---------- 规则卡片 ---------- */
.card-row{margin-left:-12px;margin-right:-12px;}
.card-row > .cell{padding-left:12px;padding-right:12px;margin-bottom:24px;}
.rule-card{
  position:relative;
  height:100%;
  display:flex;
  flex-direction:column;
  padding:20px;
  border-radius:var(--r-card);
  background:var(--bg-2);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.rule-card:hover{
  transform:translateY(-2px);
  border-color:var(--line-2);
  box-shadow:0 22px 48px -24px rgba(0,0,0,.85),0 0 0 1px rgba(43,232,196,.2);
}
.rule-thumb{
  position:relative;
  aspect-ratio:16/10;
  border-radius:14px;
  overflow:hidden;
  margin-bottom:16px;
  background:linear-gradient(140deg,#132238,#0B1420);
}
.rule-thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .45s var(--ease);
}
.rule-card:hover .rule-thumb img{transform:scale(1.03);}
.rule-thumb .thumb-tag{
  position:absolute;
  left:10px;top:10px;
  padding:4px 10px;
  border-radius:var(--r-badge);
  background:rgba(7,11,20,.72);
  border:1px solid rgba(43,232,196,.35);
  color:var(--accent);
  font-size:11px;
  letter-spacing:.05em;
  backdrop-filter:blur(6px);
}
.rule-card h3{font-size:17px;margin-bottom:8px;}
.rule-card p{
  color:var(--ink-2);
  font-size:14px;
  line-height:1.75;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:auto;
  padding-top:16px;
  border-top:1px solid var(--line);
}
.card-foot .meta{
  font-size:12px;
  color:var(--ink-3);
  font-variant-numeric:tabular-nums;
}
.card-link{
  font-size:13px;
  color:var(--accent);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.card-link:hover{color:#fff;}
.card-link i{font-size:11px;}

/* ---------- 数值面板 ---------- */
.metrics-panel{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  overflow:hidden;
}
.metric{
  background:var(--bg-1);
  padding:28px 22px;
  transition:background .22s var(--ease);
}
.metric:hover{background:var(--bg-2);}
.metric b{
  display:block;
  font-size:30px;
  font-weight:700;
  color:var(--ink-1);
  letter-spacing:-.6px;
  font-variant-numeric:tabular-nums;
}
.metric b em{font-style:normal;font-size:15px;color:var(--ink-3);margin-left:4px;font-weight:500;}
.metric span{
  display:block;
  margin-top:8px;
  font-size:13px;
  color:var(--ink-3);
}

/* ---------- 折叠说明 ---------- */
.acc-wrap{max-width:880px;margin:0 auto;}
.acc-item{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:rgba(255,255,255,.025);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .22s var(--ease),background .22s var(--ease);
}
.acc-item:hover{border-color:var(--line-2);}
.acc-item.is-open{
  background:var(--bg-2);
  border-color:rgba(43,232,196,.28);
}
.acc-head{
  display:flex;
  align-items:center;
  gap:16px;
  width:100%;
  min-height:64px;
  padding:14px 20px;
  background:transparent;
  border:0;
  color:var(--ink-1);
  text-align:left;
  font-size:16px;
  font-weight:600;
}
.acc-idx{
  font-size:13px;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  letter-spacing:.06em;
  flex-shrink:0;
}
.acc-title{flex:1;min-width:0;line-height:1.5;}
.acc-icon{
  flex-shrink:0;
  width:28px;height:28px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid var(--line);
  color:var(--ink-2);
  font-size:11px;
  transition:transform .26s var(--ease),color .26s var(--ease),border-color .26s var(--ease);
}
.acc-item.is-open .acc-icon{
  transform:rotate(45deg);
  color:var(--accent);
  border-color:rgba(43,232,196,.42);
}
.acc-body{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s var(--ease);
}
.acc-inner{
  padding:0 20px 22px 52px;
  color:var(--ink-2);
  font-size:15px;
  line-height:1.9;
}
.acc-inner p + p{margin-top:10px;}
.acc-inner .hint{
  margin-top:12px;
  padding:10px 14px;
  border-left:3px solid var(--accent);
  border-radius:0 10px 10px 0;
  background:rgba(43,232,196,.06);
  color:var(--ink-2);
  font-size:13px;
}

/* ---------- 版本说明 ---------- */
.version-row{
  display:flex;
  flex-wrap:wrap;
  gap:16px;
  margin-top:32px;
  max-width:880px;
  margin-left:auto;
  margin-right:auto;
}
.version-item{
  flex:1 1 260px;
  display:flex;
  gap:14px;
  padding:18px 20px;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--glass);
}
.version-item i{
  color:var(--accent);
  font-size:16px;
  margin-top:3px;
}
.version-item b{display:block;font-size:14px;margin-bottom:4px;}
.version-item span{font-size:13px;color:var(--ink-3);line-height:1.7;}

/* ---------- CTA ---------- */
.cta-panel{
  position:relative;
  padding:52px 44px;
  border-radius:24px;
  border:1px solid rgba(47,123,255,.28);
  background:
    radial-gradient(600px 220px at 12% 0%,rgba(47,123,255,.18),transparent 70%),
    radial-gradient(500px 200px at 92% 100%,rgba(43,232,196,.14),transparent 70%),
    var(--bg-2);
  overflow:hidden;
}
.cta-grid{display:flex;align-items:center;gap:40px;flex-wrap:wrap;}
.cta-text{flex:1 1 480px;min-width:0;}
.cta-text h2{margin-bottom:14px;}
.cta-text p{color:var(--ink-2);font-size:16px;}
.cta-points{
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  margin-top:20px;
}
.cta-points li{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--ink-2);
}
.cta-points li i{color:var(--accent);font-size:12px;}
.cta-actions{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  flex-shrink:0;
}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:0;
  padding-top:72px;
  background:var(--bg-0);
  border-top:1px solid var(--line);
  position:relative;
}
.site-footer::before{
  content:"";
  position:absolute;
  inset:0 0 auto 0;
  height:220px;
  background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
  background-size:32px 32px;
  mask-image:linear-gradient(to bottom,rgba(0,0,0,.8),transparent);
  -webkit-mask-image:linear-gradient(to bottom,rgba(0,0,0,.8),transparent);
  pointer-events:none;
}
.footer-grid{
  position:relative;
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:56px;
}
.footer-brand p{
  margin-top:16px;
  max-width:320px;
  color:var(--ink-3);
  font-size:14px;
  line-height:1.8;
}
.footer-social{
  display:flex;
  gap:10px;
  margin-top:20px;
}
.footer-social a{
  width:40px;height:40px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--ink-2);
  font-size:14px;
  transition:all .22s var(--ease);
}
.footer-social a:hover{
  color:var(--accent);
  border-color:rgba(43,232,196,.4);
  transform:translateY(-2px);
}
.footer-col h3{
  font-size:13px;
  font-weight:700;
  letter-spacing:.12em;
  color:var(--ink-1);
  margin-bottom:16px;
}
.footer-col li{margin-bottom:4px;}
.footer-col a{
  display:inline-block;
  font-size:14px;
  line-height:34px;
  color:var(--ink-3);
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-col a:hover{color:var(--ink-1);transform:translateX(2px);}
.footer-bottom{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding:24px 0;
  border-top:1px solid var(--line);
  color:var(--ink-3);
  font-size:13px;
}
.footer-bottom .tech{font-size:12px;color:var(--ink-3);}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{--fs-h1:34px;--fs-h2:24px;--pad-section:64px;}
  .main-nav{
    position:fixed;
    top:60px;
    left:0;right:0;
    bottom:0;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:12px 20px 40px;
    background:rgba(7,11,20,.98);
    backdrop-filter:blur(18px);
   -webkit-backdrop-filter:blur(18px);
    overflow-y:auto;
    transform:translateY(-8px);
    opacity:0;
    visibility:hidden;
    transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s;
    margin-left:0;
    z-index:880;
  }
  .main-nav.is-open{opacity:1;visibility:visible;transform:translateY(0);}
  .nav-link{
    font-size:16px;
    line-height:52px;
    padding:0;
    border-bottom:1px solid var(--line);
    border-radius:0;
  }
  .nav-link.active::after{display:none;}
  .nav-link.active{color:var(--accent);}
  .header-inner{height:60px;gap:12px;}
  .nav-search{display:none;}
  .nav-login{display:none;}
  .nav-toggle{display:grid;place-items:center;}
  .nav-cta{padding:8px 14px;font-size:13px;}
  .hero-grid{gap:28px;}
  .hero-stats{flex:1 1 100%;}
  .metrics-panel{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-panel{padding:40px 28px;}
}
@media (max-width:768px){
  :root{--fs-h1:30px;--fs-h2:22px;--pad-section:56px;}
  .container{padding-left:18px;padding-right:18px;}
  .page-hero{padding:44px 0 40px;}
  .hero-main p{font-size:15px;}
  .hero-stats .stat b{font-size:20px;}
  .filter-bar{margin-top:28px;padding-top:18px;}
  .cta-grid{gap:24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .acc-inner{padding-left:20px;}
}
@media (max-width:520px){
  :root{--fs-h1:26px;--fs-h2:20px;--pad-section:48px;}
  .brand-top{font-size:14px;}
  .brand-bottom{font-size:9px;}
  .hero-stats{flex-direction:column;}
  .hero-stats .stat{border-right:0;border-bottom:1px solid var(--line);padding:14px;}
  .hero-stats .stat:last-child{border-bottom:0;}
  .metrics-panel{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .cta-panel{padding:32px 20px;border-radius:18px;}
}

/* roulang page: category5 */
:root{
  --bg-0:#070B14;
  --bg-1:#0C1524;
  --bg-2:#111D31;
  --brand:#2F7BFF;
  --brand-soft:rgba(47,123,255,.16);
  --accent:#2BE8C4;
  --accent-2:#FFB63D;
  --ink-1:#EAF1FB;
  --ink-2:#9FB0C9;
  --ink-3:#6B7C96;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(47,123,255,.35);
  --glass:rgba(255,255,255,.045);
  --glass-strong:rgba(255,255,255,.07);
  --glow:0 0 0 1px rgba(43,232,196,.35),0 8px 28px -8px rgba(43,232,196,.45);
  --shadow-card:0 18px 44px -22px rgba(0,0,0,.75);
  --radius-card:18px;
  --radius-panel:20px;
  --radius-btn:12px;
  --container:1200px;
  --fs-h1:44px;
  --fs-h2:30px;
  --fs-h3:20px;
  --fs-body:16px;
  --lh-body:1.85;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--ink-1);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:var(--fs-body);
  line-height:var(--lh-body);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--brand);text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--accent);}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.2px;color:var(--ink-1);}
p{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding-left:20px;padding-right:20px;}
.grid-margin-x{margin-left:-12px;margin-right:-12px;}
.grid-margin-x > .cell{padding-left:12px;padding-right:12px;}
.grid-margin-y{margin-top:-24px;}
.grid-margin-y > .cell{padding-top:24px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:300;
  background:rgba(7,11,20,.86);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:22px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;color:var(--ink-1);}
.brand:hover{color:var(--ink-1);}
.brand-icon{
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  color:var(--accent);background:linear-gradient(160deg,rgba(43,232,196,.16),rgba(47,123,255,.14));
  border:1px solid rgba(43,232,196,.3);font-size:15px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-top{font-size:15px;font-weight:700;letter-spacing:.02em;}
.brand-bottom{font-size:10px;letter-spacing:.16em;color:var(--ink-3);}
.main-nav{display:flex;align-items:center;gap:24px;}
.nav-link{
  position:relative;font-size:15px;color:var(--ink-2);padding:6px 0;
  transition:color .22s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:-2px;height:2px;width:0;
  background:var(--accent);border-radius:2px;box-shadow:0 0 10px rgba(43,232,196,.7);
  transition:width .24s var(--ease);
}
.nav-link:hover{color:var(--ink-1);}
.nav-link:hover::after{width:100%;}
.nav-link.active{color:var(--ink-1);font-weight:600;}
.nav-link.active::after{width:100%;}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.nav-search{
  display:flex;align-items:center;gap:8px;width:220px;height:38px;padding:0 12px;
  border-radius:12px;background:var(--glass);border:1px solid var(--line);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.nav-search i{color:var(--ink-3);font-size:13px;}
.nav-search input{
  width:100%;background:transparent;border:0;color:var(--ink-1);font-size:13px;outline:none;
}
.nav-search input::placeholder{color:var(--ink-3);}
.nav-search:focus-within{border-color:rgba(43,232,196,.5);box-shadow:0 0 0 3px rgba(43,232,196,.12);}
.nav-login{font-size:14px;color:var(--ink-2);padding:8px 4px;white-space:nowrap;}
.nav-login:hover{color:var(--ink-1);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:var(--radius-btn);font-size:15px;font-weight:500;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
}
.btn-sm{padding:9px 16px;font-size:13.5px;border-radius:10px;}
.btn-glow{
  background:linear-gradient(135deg,var(--brand),#1E5FD8);
  color:#fff;box-shadow:0 8px 24px -10px rgba(47,123,255,.9);
}
.btn-glow:hover{color:#fff;transform:translateY(-1px);box-shadow:0 12px 30px -10px rgba(47,123,255,1);}
.btn-glow:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{
  background:var(--glass);color:var(--ink-1);border:1px solid var(--line);
  backdrop-filter:blur(12px);
}
.btn-ghost:hover{color:var(--ink-1);border-color:var(--line-2);transform:translateY(-1px);}
.btn-outline{
  background:transparent;color:var(--ink-1);border:1px solid rgba(255,255,255,.16);
}
.btn-outline:hover{color:var(--accent);border-color:rgba(43,232,196,.55);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:var(--glass);color:var(--ink-1);cursor:pointer;font-size:16px;
}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:88px 0 72px;
  background-image:
    linear-gradient(90deg,rgba(7,11,20,.95) 0%,rgba(7,11,20,.78) 52%,rgba(7,11,20,.52) 100%),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center right;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  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:32px 32px;
  mask-image:radial-gradient(ellipse at 30% 40%,#000 10%,transparent 72%);
  -webkit-mask-image:radial-gradient(ellipse at 30% 40%,#000 10%,transparent 72%);
}
.hero-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:40px;align-items:flex-end;justify-content:space-between;}
.hero-copy{max-width:660px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 13px;border-radius:999px;font-size:12px;letter-spacing:.08em;
  color:var(--accent);background:rgba(43,232,196,.1);
  border:1px solid rgba(43,232,196,.28);
}
.eyebrow i{font-size:11px;}
.page-hero h1{
  font-size:clamp(28px,4vw,var(--fs-h1));
  line-height:1.2;margin:18px 0 14px;
}
.hero-sub{font-size:17px;line-height:1.7;color:var(--ink-2);max-width:600px;}
.hero-stats{display:flex;gap:0;flex-wrap:wrap;margin-top:32px;}
.stat-block{
  padding:0 26px;border-left:1px solid var(--line);min-width:130px;
}
.stat-block:first-child{padding-left:0;border-left:0;}
.stat-num{font-size:26px;font-weight:700;color:var(--accent);line-height:1.2;}
.stat-label{font-size:12.5px;color:var(--ink-3);margin-top:4px;}
.hero-side{flex:0 0 auto;}
.hero-badge-card{
  width:260px;padding:20px;border-radius:var(--radius-panel);
  background:var(--glass);border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--shadow-card);
  backdrop-filter:blur(14px);
}
.hero-badge-card h3{font-size:14px;color:var(--ink-2);font-weight:500;margin-bottom:14px;}
.hero-badge-card li{
  display:flex;align-items:center;justify-content:space-between;
  padding:9px 0;border-bottom:1px dashed rgba(255,255,255,.07);font-size:13.5px;color:var(--ink-2);
}
.hero-badge-card li:last-child{border-bottom:0;}
.hero-badge-card li span:last-child{color:var(--ink-1);font-weight:600;}

/* ---------- Sections ---------- */
.section{padding:88px 0;}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head h2{font-size:clamp(22px,3vw,var(--fs-h2));line-height:1.3;margin-bottom:12px;}
.section-head p{color:var(--ink-2);font-size:15.5px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}

/* ---------- Tip cards ---------- */
.tip-card{
  height:100%;padding:24px;border-radius:var(--radius-card);
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid var(--line);transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.tip-card:hover{transform:translateY(-2px);border-color:var(--line-2);box-shadow:var(--shadow-card);}
.tip-icon{
  width:44px;height:44px;border-radius:13px;display:grid;place-items:center;
  font-size:17px;color:var(--accent);background:rgba(43,232,196,.1);
  border:1px solid rgba(43,232,196,.22);margin-bottom:16px;
}
.tip-card h3{font-size:17px;margin-bottom:8px;}
.tip-card p{font-size:14.5px;color:var(--ink-2);line-height:1.75;}
.tip-card .tip-meta{display:inline-block;margin-top:14px;font-size:12px;color:var(--accent);letter-spacing:.06em;}

/* ---------- Checklist block ---------- */
.check-figure{
  border-radius:var(--radius-panel);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-card);position:relative;aspect-ratio:16/11;background:var(--bg-2);
}
.check-figure img{width:100%;height:100%;object-fit:cover;}
.check-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.05) 30%,rgba(7,11,20,.82) 100%);
}
.check-figure figcaption{
  position:absolute;left:20px;right:20px;bottom:18px;z-index:2;
  font-size:13px;color:var(--ink-2);
}
.check-list li{
  display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line);
}
.check-list li:last-child{border-bottom:0;}
.check-mark{
  flex:0 0 26px;height:26px;border-radius:8px;display:grid;place-items:center;
  background:rgba(43,232,196,.12);color:var(--accent);font-size:11px;margin-top:2px;
}
.check-list h3{font-size:16px;margin-bottom:4px;}
.check-list p{font-size:14px;color:var(--ink-2);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;}
.faq-item{
  border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.028);
  margin-bottom:14px;overflow:hidden;transition:border-color .22s var(--ease),background .22s var(--ease);
}
.faq-item:hover{border-color:var(--line-2);}
.faq-item.open{border-color:rgba(43,232,196,.4);background:rgba(43,232,196,.05);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:58px;padding:14px 20px;background:transparent;border:0;cursor:pointer;
  text-align:left;font-size:16px;font-weight:600;color:var(--ink-1);
}
.faq-q i{color:var(--accent);font-size:13px;transition:transform .24s var(--ease);flex-shrink:0;}
.faq-item.open .faq-q i{transform:rotate(45deg);}
.faq-a{padding:0 20px 20px;font-size:15px;line-height:1.9;color:var(--ink-2);}
.faq-a[hidden]{display:none;}

/* ---------- Contact ---------- */
.contact-panel{
  padding:32px;border-radius:var(--radius-panel);
  background:linear-gradient(165deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid var(--line);box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.contact-points li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-2);margin-top:12px;}
.contact-points i{color:var(--accent);font-size:13px;margin-top:5px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;color:var(--ink-3);margin-bottom:7px;}
.field input,.field select,.field textarea{
  width:100%;background:rgba(255,255,255,.04);border:1px solid var(--line);
  border-radius:12px;color:var(--ink-1);font-size:14.5px;padding:0 14px;height:48px;
  outline:none;transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
  appearance:none;
}
.field textarea{height:110px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3);}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:rgba(43,232,196,.6);box-shadow:0 0 0 3px rgba(43,232,196,.12);background:rgba(255,255,255,.06);
}
.form-note{font-size:12px;color:var(--ink-3);line-height:1.7;margin-top:14px;}
.form-msg{
  display:none;margin-top:14px;padding:10px 14px;border-radius:10px;font-size:13.5px;
  background:rgba(43,232,196,.1);border:1px solid rgba(43,232,196,.3);color:var(--accent);
}
.form-msg.show{display:block;}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--bg-1);border-top:1px solid var(--line);padding-top:72px;position:relative;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}
.footer-brand p{font-size:13.5px;color:var(--ink-2);line-height:1.8;margin-top:16px;max-width:300px;}
.footer-social{display:flex;gap:10px;margin-top:20px;}
.footer-social a{
  width:36px;height:36px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--line);background:var(--glass);color:var(--ink-2);font-size:13px;
  transition:all .22s var(--ease);
}
.footer-social a:hover{color:var(--accent);border-color:rgba(43,232,196,.5);transform:translateY(-2px);}
.footer-col h3{font-size:13px;letter-spacing:.12em;color:var(--ink-1);margin-bottom:16px;}
.footer-col li{margin-bottom:6px;}
.footer-col a{
  display:inline-block;font-size:14px;line-height:34px;color:var(--ink-2);
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-col a:hover{color:var(--ink-1);transform:translateX(2px);}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--line);padding:24px 0;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
}
.footer-bottom p{font-size:13px;color:var(--ink-3);}
.footer-bottom .tech{font-size:12.5px;color:var(--ink-3);}

/* ---------- Responsive ---------- */
@media screen and (max-width:1024px){
  .main-nav{
    position:fixed;top:72px;left:0;right:0;bottom:0;z-index:250;
    flex-direction:column;align-items:stretch;gap:0;
    background:rgba(7,11,20,.98);backdrop-filter:blur(20px);
    padding:12px 20px 40px;overflow-y:auto;
    transform:translateY(-12px);opacity:0;pointer-events:none;
    transition:opacity .22s var(--ease),transform .22s var(--ease);
    border-top:1px solid var(--line);
  }
  .main-nav.open{opacity:1;transform:translateY(0);pointer-events:auto;}
  .nav-link{font-size:16px;line-height:52px;border-bottom:1px solid var(--line);padding:0;}
  .nav-link::after{display:none;}
  .nav-link.active{color:var(--accent);}
  .nav-search{display:none;}
  .nav-toggle{display:grid;place-items:center;}
  .nav-login{display:none;}
  .header-inner{gap:12px;}
  .hero-side{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media screen and (max-width:768px){
  .section{padding:64px 0;}
  .page-hero{padding:64px 0 52px;}
  .hero-stats{margin-top:26px;}
  .stat-block{padding:0 18px;min-width:110px;}
  .stat-num{font-size:22px;}
  .contact-panel{padding:24px;}
}
@media screen and (max-width:520px){
  .section{padding:48px 0;}
  .page-hero{padding:52px 0 44px;}
  .hero-sub{font-size:15.5px;}
  .stat-block{padding:0 14px;}
  .hero-stats{gap:0;flex-wrap:wrap;row-gap:16px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .btn{width:100%;}
  .header-actions .nav-cta{padding:9px 12px;font-size:12.5px;}
}

/* roulang page: category4 */
:root{
  --bg-0:#070B14;
  --bg-1:#0C1524;
  --bg-2:#111D31;
  --brand:#2F7BFF;
  --brand-deep:#1F5AD6;
  --accent:#2BE8C4;
  --accent-2:#FFB63D;
  --danger:#FF4D5E;
  --ink-1:#EAF1FB;
  --ink-2:#9FB0C9;
  --ink-3:#6B7C96;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(47,123,255,.35);
  --glow:0 0 0 1px rgba(43,232,196,.35),0 8px 28px -8px rgba(43,232,196,.45);
  --container:1200px;
  --fs-h1:44px;
  --fs-h2:30px;
  --fs-h3:20px;
  --lh-body:1.85;
  --r-card:18px;
  --r-panel:20px;
  --r-btn:12px;
  --r-badge:999px;
  --shadow-card:0 18px 44px -22px rgba(0,0,0,.75);
  --t:240ms cubic-bezier(.2,.7,.3,1);
  --sec-y:88px;
}
*,*::before,*::after{box-sizing:border-box}
html,body{overflow-x:hidden}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--ink-1);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:var(--lh-body);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.2px;line-height:1.3;color:var(--ink-1)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:var(--ink-1);text-decoration:none;transition:color var(--t)}
img{max-width:100%;display:block;height:auto}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:900;
  background:rgba(7,11,20,.72);
  border-bottom:1px solid transparent;
  transition:background var(--t),border-color var(--t),backdrop-filter var(--t);
}
.site-header.is-scrolled{
  background:rgba(7,11,20,.86);
  border-bottom-color:var(--line);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;text-decoration:none}
.brand-icon{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(160deg,rgba(43,232,196,.18),rgba(47,123,255,.14));
  border:1px solid rgba(43,232,196,.35);
  color:var(--accent);font-size:15px;
  transition:box-shadow var(--t),transform var(--t);
}
.brand:hover .brand-icon{box-shadow:var(--glow);transform:translateY(-1px)}
.brand-top{display:block;font-size:15px;font-weight:700;letter-spacing:-.2px;line-height:1.15;color:var(--ink-1)}
.brand-bottom{display:block;font-size:10px;letter-spacing:.22em;line-height:1.3;color:var(--ink-3)}
.main-nav{display:flex;align-items:center;gap:2px;flex:1;margin-left:6px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:8px 12px;font-size:15px;color:var(--ink-2);border-radius:8px;
  transition:color var(--t),background var(--t);
}
.nav-link:hover{color:var(--ink-1);background:rgba(255,255,255,.05)}
.nav-link.active{color:var(--ink-1)}
.nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:var(--accent);box-shadow:0 0 10px rgba(43,232,196,.85);
}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-search{
  display:flex;align-items:center;gap:8px;height:38px;padding:0 12px;width:220px;
  border-radius:12px;background:rgba(255,255,255,.05);border:1px solid var(--line);
  transition:border-color var(--t),box-shadow var(--t),background var(--t);
}
.nav-search i{font-size:13px;color:var(--ink-3)}
.nav-search input{
  width:100%;height:100%;border:0;background:transparent;color:var(--ink-1);
  font-size:13px;outline:none;padding:0;
}
.nav-search input::placeholder{color:var(--ink-3)}
.nav-search:focus-within{border-color:rgba(43,232,196,.55);box-shadow:var(--glow);background:rgba(255,255,255,.07)}
.nav-login{font-size:15px;color:var(--ink-2);padding:6px 4px;transition:color var(--t)}
.nav-login:hover{color:var(--ink-1)}
.nav-toggle{
  display:none;width:42px;height:38px;border-radius:10px;cursor:pointer;
  background:rgba(255,255,255,.06);border:1px solid var(--line);color:var(--ink-1);
  align-items:center;justify-content:center;font-size:16px;transition:background var(--t),border-color var(--t);
}
.nav-toggle:hover{background:rgba(255,255,255,.1);border-color:rgba(43,232,196,.4)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:500;line-height:1;cursor:pointer;white-space:nowrap;
  transition:transform var(--t),box-shadow var(--t),background var(--t),border-color var(--t),color var(--t);
}
.btn-glow{
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#fff;
  box-shadow:0 10px 26px -12px rgba(47,123,255,.9),0 0 0 1px rgba(43,232,196,.32);
}
.btn-glow:hover{transform:translateY(-1px);box-shadow:0 14px 30px -12px rgba(47,123,255,1),0 0 0 1px rgba(43,232,196,.55)}
.btn-glow:active{transform:translateY(0);box-shadow:0 6px 16px -10px rgba(47,123,255,.9)}
.btn-ghost{
  background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.14);color:var(--ink-1);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.btn-ghost:hover{background:rgba(255,255,255,.09);border-color:rgba(43,232,196,.45);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px}
.nav-cta{margin:4px 0}

/* ---------- hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:60px 0 56px;
  border-bottom:1px solid var(--line);
  background-image:
    linear-gradient(90deg,rgba(7,11,20,.95) 0%,rgba(7,11,20,.80) 55%,rgba(7,11,20,.55) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center right;
  background-repeat:no-repeat;
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:32px 32px;
  mask-image:linear-gradient(90deg,rgba(0,0,0,.9),transparent 80%);
  -webkit-mask-image:linear-gradient(90deg,rgba(0,0,0,.9),transparent 80%);
}
.page-hero .container{position:relative;z-index:2}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:18px;flex-wrap:wrap}
.crumbs a{color:var(--ink-3)}
.crumbs a:hover{color:var(--accent)}
.crumbs span{color:var(--ink-2)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:28px;padding:0 12px;border-radius:var(--r-badge);
  background:rgba(43,232,196,.12);border:1px solid rgba(43,232,196,.36);
  color:#8CF5E1;font-size:12px;letter-spacing:.06em;margin-bottom:18px;
}
.hero-title{font-size:var(--fs-h1);line-height:1.2;margin-bottom:16px;max-width:14em}
.hero-sub{font-size:18px;line-height:1.7;color:var(--ink-2);max-width:34em;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-note{margin-top:26px;display:flex;flex-wrap:wrap;align-items:center;gap:0;color:var(--ink-2);font-size:14px}
.hero-note .metric{padding:0 20px;border-left:1px solid var(--line)}
.hero-note .metric:first-child{padding-left:0;border-left:0}
.hero-note .metric strong{display:block;font-size:20px;color:var(--ink-1);font-variant-numeric:tabular-nums;letter-spacing:-.4px}
.hero-note .metric span{font-size:12px;color:var(--ink-3)}

.hero-panel{
  position:relative;
  background:rgba(255,255,255,.045);
  border:1px solid rgba(255,255,255,.1);
  border-radius:var(--r-panel);
  padding:24px;
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:transform var(--t),border-color var(--t);
}
.hero-panel:hover{transform:translateY(-2px);border-color:rgba(43,232,196,.35)}
.panel-tag{display:inline-flex;align-items:center;gap:8px;font-size:12px;color:#8CF5E1;letter-spacing:.06em}
.dot-live{
  width:6px;height:6px;border-radius:50%;background:var(--danger);
  box-shadow:0 0 0 3px rgba(255,77,94,.18);
  animation:pulse 2s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.45}}
.panel-title{font-size:18px;margin:12px 0 16px}
.panel-rows{display:grid;gap:0}
.panel-rows li{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px 0;border-top:1px solid var(--line);font-size:14px}
.panel-rows li span{color:var(--ink-3)}
.panel-rows li strong{color:var(--ink-1);font-weight:500}
.panel-rows li strong.ok{color:#8CF5E1}
.panel-btn{margin-top:16px;width:100%}

/* ---------- section ---------- */
.section{padding:var(--sec-y) 0;position:relative}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:34px}
.section-head h2{font-size:var(--fs-h2)}
.section-head h2::before{
  content:"";display:inline-block;width:4px;height:22px;border-radius:2px;
  background:var(--accent);margin-right:12px;vertical-align:-2px;
  box-shadow:0 0 12px rgba(43,232,196,.7);
}
.section-head p{color:var(--ink-2);font-size:15px;margin-top:10px;max-width:52em}
.link-more{font-size:14px;color:var(--accent);display:inline-flex;align-items:center;gap:6px}
.link-more:hover{color:#8CF5E1}
.link-more i{font-size:12px;transition:transform var(--t)}
.link-more:hover i{transform:translateX(3px)}

/* ---------- filter chips ---------- */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:12px}
.chip{
  display:inline-flex;align-items:center;gap:6px;height:34px;padding:0 16px;border-radius:var(--r-badge);
  font-size:13px;color:var(--ink-2);background:rgba(255,255,255,.04);
  border:1px solid var(--line);transition:all var(--t);
}
.chip.is-active{color:#06121A;background:var(--accent);border-color:var(--accent);font-weight:600;box-shadow:0 6px 18px -8px rgba(43,232,196,.7)}
.chip:hover{border-color:rgba(43,232,196,.45);color:var(--ink-1)}
.filter-tip{font-size:13px;color:var(--ink-3);margin-bottom:8px}

/* ---------- notice stream ---------- */
.notice-list{position:relative;margin-top:8px}
.notice-item{
  padding:26px 18px;margin:0 -18px;border-radius:14px;
  border-top:1px solid var(--line);
  transition:background var(--t);
}
.notice-item:first-child{border-top:0}
.notice-item:hover{background:rgba(255,255,255,.035)}
.notice-row{display:grid;grid-template-columns:104px 1fr;gap:26px;align-items:start}
.notice-date{font-variant-numeric:tabular-nums;padding-top:2px}
.notice-date .d{display:block;font-size:22px;font-weight:700;letter-spacing:-.4px;color:var(--ink-1)}
.notice-date .t{display:block;font-size:12px;color:var(--ink-3);letter-spacing:.06em;margin-top:2px}
.notice-body{position:relative;border-left:2px solid var(--line);padding-left:26px}
.notice-body::before{
  content:"";position:absolute;left:-6px;top:9px;width:10px;height:10px;border-radius:50%;
  background:var(--bg-0);border:2px solid var(--accent);box-shadow:0 0 10px rgba(43,232,196,.7);
}
.notice-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:10px}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;border-radius:var(--r-badge);
  font-size:12px;letter-spacing:.02em;color:var(--ink-2);
  background:rgba(255,255,255,.05);border:1px solid var(--line);
}
.badge-new{color:#8CF5E1;background:rgba(43,232,196,.14);border-color:rgba(43,232,196,.4)}
.badge-live{color:#FFC98A;background:rgba(255,182,61,.14);border-color:rgba(255,182,61,.38)}
.badge-done{color:#9FB0C9}
.notice-body h3{font-size:17px;line-height:1.5;margin-bottom:8px}
.notice-body p{font-size:14.5px;line-height:1.8;color:var(--ink-2);max-width:62em}
.notice-meta{margin-top:10px;font-size:13px;color:var(--ink-3);display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.notice-meta .sep{width:3px;height:3px;border-radius:50%;background:var(--ink-3);display:inline-block}
.list-foot{display:flex;justify-content:center;margin-top:32px}

/* ---------- tips cards ---------- */
.tips-grid{display:flex;flex-wrap:wrap}
.tip-card{
  height:100%;
  display:flex;flex-direction:column;gap:12px;
  padding:24px;border-radius:var(--r-card);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.tip-card:hover{transform:translateY(-2px);border-color:rgba(47,123,255,.45);box-shadow:var(--shadow-card),0 0 0 1px rgba(43,232,196,.2)}
.tip-icon{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:rgba(43,232,196,.12);border:1px solid rgba(43,232,196,.32);color:var(--accent);font-size:17px;
}
.tip-card h3{font-size:17px}
.tip-card p{font-size:14.5px;color:var(--ink-2)}

/* ---------- guide ---------- */
.guide-wrap{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.guide-media{
  border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-card);aspect-ratio:16/10;background:var(--bg-2);position:relative;
}
.guide-media img{width:100%;height:100%;object-fit:cover;transition:transform 500ms ease}
.guide-media:hover img{transform:scale(1.03)}
.guide-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.05),rgba(7,11,20,.6));
  pointer-events:none;
}
.guide-list{display:grid;gap:16px;margin-top:22px}
.guide-list li{display:grid;grid-template-columns:32px 1fr;gap:14px;align-items:start}
.guide-num{
  width:32px;height:32px;border-radius:10px;display:grid;place-items:center;
  font-size:13px;font-variant-numeric:tabular-nums;color:#8CF5E1;
  background:rgba(43,232,196,.1);border:1px solid rgba(43,232,196,.3);
}
.guide-list h3{font-size:16px;margin-bottom:4px}
.guide-list p{font-size:14.5px;color:var(--ink-2)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto}
.faq-item{
  border:1px solid var(--line);border-radius:14px;
  background:rgba(255,255,255,.03);
  margin-bottom:12px;overflow:hidden;
  transition:border-color var(--t),background var(--t);
}
.faq-item:hover{border-color:rgba(47,123,255,.4)}
.faq-item.is-open{border-color:rgba(43,232,196,.38);background:rgba(255,255,255,.05)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;min-height:56px;padding:0 20px;
  background:transparent;border:0;color:var(--ink-1);
  font-size:15.5px;font-weight:500;text-align:left;cursor:pointer;line-height:1.5;
}
.faq-q i{color:var(--ink-3);font-size:13px;transition:transform var(--t),color var(--t)}
.faq-item.is-open .faq-q i{transform:rotate(45deg);color:var(--accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 300ms ease}
.faq-a p{padding:0 20px 20px;font-size:15px;line-height:1.9;color:var(--ink-2)}

/* ---------- CTA ---------- */
.cta-box{
  position:relative;overflow:hidden;
  border-radius:24px;border:1px solid rgba(43,232,196,.24);
  background:linear-gradient(120deg,rgba(17,29,49,.94),rgba(12,21,36,.96));
  padding:44px;
  box-shadow:var(--shadow-card);
}
.cta-box::before{
  content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(43,232,196,.18),transparent 70%);pointer-events:none;
}
.cta-inner{position:relative;display:grid;grid-template-columns:1.2fr .8fr;gap:36px;align-items:center}
.cta-inner h2{font-size:28px;margin-bottom:12px}
.cta-inner p{color:var(--ink-2);font-size:15px;max-width:34em}
.cta-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.cta-points span{
  display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--ink-2);
  padding:6px 12px;border-radius:var(--r-badge);background:rgba(255,255,255,.05);border:1px solid var(--line);
}
.cta-points i{color:var(--accent);font-size:12px}
.cta-actions{display:flex;flex-direction:column;gap:12px;align-items:stretch}
.cta-actions .btn{width:100%}
.cta-note{font-size:12px;color:var(--ink-3);text-align:center}

/* ---------- footer ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:var(--bg-1);
  padding-top:72px;
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;inset:0 0 auto 0;height:180px;pointer-events:none;
  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:32px 32px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.8),transparent);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.8),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;position:relative}
.footer-brand p{margin:18px 0 20px;font-size:14px;color:var(--ink-2);max-width:26em;line-height:1.8}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--ink-2);font-size:14px;
  transition:all var(--t);
}
.footer-social a:hover{color:var(--accent);border-color:rgba(43,232,196,.45);transform:translateY(-2px)}
.footer-col h3{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--ink-1);margin-bottom:16px}
.footer-col li{line-height:34px}
.footer-col a{font-size:14px;color:var(--ink-2);display:inline-block;transition:color var(--t),transform var(--t)}
.footer-col a:hover{color:var(--ink-1);transform:translateX(2px)}
.footer-bottom{
  margin-top:52px;border-top:1px solid var(--line);
  padding:24px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--ink-3)}
.footer-bottom .tech{font-size:12px;color:var(--ink-3)}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity 520ms cubic-bezier(.2,.7,.3,1),transform 520ms cubic-bezier(.2,.7,.3,1)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  :root{--fs-h1:34px;--fs-h2:24px;--sec-y:64px}
  .header-inner{height:64px;gap:12px}
  .main-nav{
    position:fixed;left:0;right:0;top:64px;bottom:0;
    flex-direction:column;align-items:stretch;gap:0;
    margin-left:0;padding:8px 20px 40px;
    background:rgba(7,11,20,.98);
    backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
    border-top:1px solid var(--line);
    overflow-y:auto;
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity var(--t),transform var(--t),visibility var(--t);
  }
  .main-nav.is-open{opacity:1;visibility:visible;transform:none}
  .nav-link{
    height:52px;padding:0 4px;border-radius:0;font-size:16px;
    border-bottom:1px solid var(--line);
  }
  .nav-link.active::after{left:4px;right:auto;width:20px;bottom:14px}
  .nav-search{display:none}
  .nav-login{display:none}
  .nav-toggle{display:inline-flex}
  .hero-title{max-width:none}
  .hero-panel{margin-top:32px}
  .hero-sub{font-size:16px}
  .cta-inner{grid-template-columns:1fr;gap:24px}
  .cta-box{padding:32px}
  .guide-wrap{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:640px){
  :root{--fs-h1:28px;--fs-h2:22px;--sec-y:48px}
  .page-hero{padding:36px 0 40px}
  .hero-actions{gap:10px}
  .hero-actions .btn{flex:1 1 auto;min-width:0;padding:0 16px;font-size:14px}
  .hero-note{gap:12px 0}
  .hero-note .metric{padding:0 14px}
  .hero-note .metric strong{font-size:17px}
  .hero-note .metric span{font-size:11px}
  .notice-row{grid-template-columns:1fr;gap:12px}
  .notice-date{display:flex;align-items:baseline;gap:8px}
  .notice-date .d{font-size:18px}
  .notice-body{padding-left:18px}
  .notice-item{padding:22px 12px;margin:0 -12px}
  .cta-box{padding:26px 22px}
  .cta-inner h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .section-head{margin-bottom:24px}
  .chip{height:32px;padding:0 13px;font-size:12px}
}