/* roulang page: index */
:root{
  --bg:#050a18;
  --bg-soft:#081126;
  --bg-deep:#03060f;
  --panel:rgba(126,168,255,.055);
  --panel-2:rgba(126,168,255,.095);
  --line:rgba(126,168,255,.16);
  --line-2:rgba(126,196,255,.44);
  --txt:#e9effd;
  --txt-2:#a6b6d8;
  --txt-3:#7182a6;
  --cyan:#38bdf8;
  --indigo:#6366f1;
  --teal:#22d3ee;
  --good:#34e0b4;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 24px 60px -30px rgba(2,8,26,.95);
  --glow:0 0 0 1px rgba(56,189,248,.4),0 12px 34px -12px rgba(56,189,248,.62);
  --ease:.22s ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--txt);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:15px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,figure{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;border:0;}
button,input{font:inherit;}
button{cursor:pointer;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 22px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(5,10,24,.74);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease),background var(--ease);
}
.site-header.is-stuck{
  background:rgba(5,10,24,.92);
  box-shadow:0 18px 44px -26px rgba(0,0,0,.95);
}
.nav-wrap{display:flex;align-items:center;gap:20px;min-height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;letter-spacing:.3px;color:#fff;white-space:nowrap;}
.brand-mark{
  width:30px;height:30px;border-radius:9px;display:grid;place-items:center;
  background:linear-gradient(135deg,#3cc8f8,#5d68f0);
  box-shadow:0 0 0 1px rgba(120,220,255,.45),0 10px 22px -10px rgba(56,189,248,.9);
  color:#03101f;font-size:12px;font-weight:800;letter-spacing:0;
}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-links a{
  display:inline-flex;align-items:center;min-height:38px;padding:8px 13px;border-radius:9px;
  font-size:14px;color:var(--txt-2);transition:color var(--ease),background var(--ease),box-shadow var(--ease);
}
.nav-links a:hover{color:#fff;background:rgba(126,168,255,.1);}
.nav-links a.is-active{
  color:#fff;background:rgba(56,189,248,.14);
  box-shadow:inset 0 0 0 1px rgba(56,189,248,.36);
}
.nav-cta{margin-left:10px;padding:10px 18px;min-height:40px;font-size:13.6px;}
.nav-toggle{
  display:none;margin-left:auto;width:42px;height:42px;border-radius:10px;
  background:rgba(126,168,255,.08);border:1px solid var(--line);color:#d7e6ff;
  align-items:center;justify-content:center;
}
.nav-toggle svg{width:20px;height:20px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 22px;border-radius:10px;border:1px solid transparent;
  font-size:14px;font-weight:600;letter-spacing:.2px;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,#3ecbf9,#4f7cf7);color:#03101f;
  box-shadow:0 0 0 1px rgba(130,225,255,.42),0 16px 34px -16px rgba(56,189,248,.9);
}
.btn-primary:hover{
  transform:translateY(-2px);color:#01101d;
  box-shadow:0 0 0 1px rgba(150,235,255,.66),0 22px 42px -16px rgba(56,189,248,1);
}
.btn-ghost{
  border-color:var(--line-2);color:#cfe4ff;background:rgba(126,168,255,.05);
}
.btn-ghost:hover{background:rgba(126,168,255,.13);color:#fff;transform:translateY(-2px);}
.btn:active{transform:translateY(0);}
.btn-sm{min-height:38px;padding:8px 16px;font-size:13px;border-radius:9px;}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  padding:54px 0 66px;
  background:
    radial-gradient(900px 420px at 82% 8%,rgba(56,189,248,.16),transparent 60%),
    linear-gradient(180deg,rgba(5,10,24,.82),rgba(5,10,24,.97)),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.hero::after{
  content:"";position:absolute;left:-10%;bottom:-40%;width:60%;height:80%;
  background:radial-gradient(closest-side,rgba(99,102,241,.22),transparent 70%);
  pointer-events:none;
}
.hero .container{position:relative;z-index:2;}
.hero-status{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 15px;border-radius:999px;
  background:rgba(34,211,238,.1);border:1px solid rgba(34,211,238,.34);
  font-size:12.5px;color:#9de8f7;margin-bottom:24px;
}
.hero-status .dot{width:7px;height:7px;border-radius:50%;background:var(--teal);box-shadow:0 0 12px var(--teal);flex:none;}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:52px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:1.4px;
  color:#7fd6f5;text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:24px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--cyan),transparent);}
.hero h1{
  font-size:clamp(27px,3.5vw,42px);line-height:1.26;font-weight:800;letter-spacing:-.6px;
  color:#f2f8ff;
}
.hero h1 .hl{
  background:linear-gradient(100deg,#5fd8ff,#7d8bff);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{margin-top:18px;font-size:15px;line-height:1.85;color:var(--txt-2);max-width:640px;}
.hero-actions{margin-top:26px;display:flex;gap:12px;flex-wrap:wrap;}
.hero-tags{margin-top:24px;display:flex;gap:9px;flex-wrap:wrap;}
.tag{
  display:inline-flex;align-items:center;font-size:12.5px;color:#a9c9f2;
  padding:5px 13px;border-radius:999px;background:rgba(126,168,255,.08);border:1px solid var(--line);
}
.tag-solid{background:rgba(56,189,248,.14);border-color:rgba(56,189,248,.36);color:#bfe9ff;}

.icon-matrix{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;}
.icon-cell{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:17px 10px;text-align:center;backdrop-filter:blur(12px);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease),background var(--ease);
}
.icon-cell:hover{
  transform:translateY(-4px);border-color:var(--line-2);background:var(--panel-2);
  box-shadow:0 22px 40px -26px rgba(3,10,30,.95),0 0 0 1px rgba(56,189,248,.2);
}
.icon-cell svg{width:22px;height:22px;color:var(--cyan);margin:0 auto 8px;display:block;}
.icon-cell span{display:block;font-size:12.5px;color:var(--txt-2);line-height:1.5;}

/* ============ 通用 section ============ */
.section{padding:72px 0;position:relative;}
.section--alt{background:linear-gradient(180deg,rgba(8,17,38,.92),rgba(5,10,24,.99));border-top:1px solid rgba(126,168,255,.09);border-bottom:1px solid rgba(126,168,255,.09);}
.section--deep{background:linear-gradient(180deg,#040814,#061027);}
.section-head{max-width:760px;margin-bottom:36px;}
.sec-kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:12.4px;letter-spacing:1.5px;
  color:#7fd6f5;text-transform:uppercase;margin-bottom:12px;
}
.sec-kicker::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--cyan),transparent);}
.section-head h2{font-size:clamp(21px,2.4vw,29px);font-weight:750;letter-spacing:-.3px;line-height:1.35;color:#eef6ff;}
.section-head p{margin-top:13px;font-size:14.5px;line-height:1.85;color:var(--txt-2);}

/* ============ 网格 ============ */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}

/* ============ 卡片 ============ */
.card{
  position:relative;overflow:hidden;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;backdrop-filter:blur(12px);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease),background var(--ease);
}
.card:hover{
  transform:translateY(-4px);border-color:var(--line-2);background:var(--panel-2);
  box-shadow:0 26px 52px -30px rgba(3,10,30,.98),0 0 0 1px rgba(56,189,248,.18);
}
.card h3{font-size:16px;font-weight:700;margin-bottom:9px;color:#f0f7ff;line-height:1.5;}
.card p{font-size:13.8px;line-height:1.8;color:var(--txt-2);}
.card-icon{
  width:40px;height:40px;border-radius:11px;display:grid;place-items:center;
  background:rgba(56,189,248,.12);border:1px solid rgba(56,189,248,.28);
  color:var(--cyan);margin-bottom:15px;
}
.card-icon svg{width:20px;height:20px;}
.card-num{
  position:absolute;right:16px;top:12px;font-size:34px;font-weight:800;
  color:rgba(126,168,255,.11);letter-spacing:-2px;line-height:1;
}

.media-card{padding:0;overflow:hidden;display:flex;flex-direction:column;}
.media-card .thumb{aspect-ratio:16/10;overflow:hidden;background:#0a1428;}
.media-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.media-card:hover .thumb img{transform:scale(1.06);}
.media-card .body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:8px;flex:1;}
.media-card .body h3{font-size:15.5px;}
.media-card .body p{font-size:13.2px;}
.card-foot{margin-top:auto;padding-top:12px;display:flex;align-items:center;justify-content:space-between;gap:10px;}
.badge{
  display:inline-flex;align-items:center;font-size:11.5px;letter-spacing:.4px;
  padding:3px 10px;border-radius:999px;background:rgba(56,189,248,.13);
  border:1px solid rgba(56,189,248,.3);color:#a9e4ff;
}
.badge-muted{background:rgba(126,168,255,.07);border-color:var(--line);color:var(--txt-3);}
.more-link{font-size:12.8px;color:#8fd8f7;display:inline-flex;align-items:center;gap:5px;}
.more-link:hover{color:#c7f0ff;}

/* ============ 图文两列 ============ */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;}
.split-figure{
  border-radius:18px;overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow);position:relative;
}
.split-figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;}
.split-body p{font-size:14.5px;line-height:1.88;color:var(--txt-2);}
.split-body p + p{margin-top:14px;}
.split-points{margin-top:22px;display:grid;gap:12px;}
.split-points li{
  display:flex;gap:11px;font-size:14px;color:#cfdffa;
  padding:13px 16px;border-radius:var(--radius-sm);
  background:var(--panel);border:1px solid var(--line);
}
.split-points svg{flex:none;width:18px;height:18px;color:var(--good);margin-top:3px;}

/* ============ 进度任务 ============ */
.task-panel{
  background:var(--panel);border:1px solid var(--line);border-radius:18px;
  padding:30px 30px 26px;backdrop-filter:blur(12px);
}
.task-panel h3{font-size:16.5px;font-weight:700;margin-bottom:6px;}
.task-panel .task-note{font-size:13.2px;color:var(--txt-3);margin-bottom:22px;}
.progress-item + .progress-item{margin-top:19px;}
.progress-top{display:flex;justify-content:space-between;align-items:baseline;gap:12px;font-size:13.8px;color:#d5e5ff;margin-bottom:8px;}
.progress-top em{font-style:normal;font-size:12.6px;color:#8fd8f7;}
.bar{height:8px;border-radius:999px;background:rgba(126,168,255,.12);overflow:hidden;}
.bar span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,#22d3ee,#4f7cf7);box-shadow:0 0 16px rgba(56,189,248,.6);}

/* ============ 内容日历 ============ */
.calendar-list{display:grid;gap:11px;}
.calendar-item{
  display:grid;grid-template-columns:110px 1fr;gap:18px;align-items:center;
  padding:15px 20px;border-radius:var(--radius-sm);
  background:var(--panel);border:1px solid var(--line);
  transition:transform var(--ease),border-color var(--ease),background var(--ease),box-shadow var(--ease);
}
.calendar-item:hover{transform:translateX(4px);border-color:var(--line-2);background:var(--panel-2);box-shadow:0 18px 38px -28px rgba(3,10,30,.98);}
.calendar-item .day{font-size:12.6px;letter-spacing:.8px;color:#83d9f7;font-weight:600;}
.calendar-item h3{font-size:14.6px;font-weight:600;color:#eef6ff;}
.calendar-item p{font-size:12.9px;color:var(--txt-3);margin-top:3px;}

/* ============ 资讯列表 ============ */
.news-layout{display:grid;grid-template-columns:1.62fr .86fr;gap:26px;align-items:start;}
.news-list{display:grid;gap:12px;}
.news-item{
  display:block;padding:18px 20px;border-radius:var(--radius-sm);
  background:var(--panel);border:1px solid var(--line);
  transition:transform var(--ease),border-color var(--ease),background var(--ease),box-shadow var(--ease);
}
.news-item:hover{transform:translateX(4px);border-color:var(--line-2);background:var(--panel-2);box-shadow:0 20px 40px -30px rgba(3,10,30,.98);}
.news-item h3{font-size:15px;font-weight:650;color:#eef6ff;line-height:1.55;}
.news-item p{font-size:13.2px;color:var(--txt-2);margin-top:6px;}
.news-meta{margin-top:10px;display:flex;flex-wrap:wrap;gap:10px;font-size:12px;color:var(--txt-3);}
.news-meta span{display:inline-flex;align-items:center;gap:5px;}
.side-panel{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;backdrop-filter:blur(12px);position:sticky;top:84px;
}
.side-panel h3{font-size:14.6px;font-weight:700;margin-bottom:16px;color:#eaf4ff;}
.side-list li + li{margin-top:14px;padding-top:14px;border-top:1px dashed rgba(126,168,255,.16);}
.side-list a{font-size:13.6px;line-height:1.65;color:#cfe0fb;transition:color var(--ease);}
.side-list a:hover{color:var(--cyan);}
.empty-note{
  font-size:13.5px;color:var(--txt-3);padding:20px;border-radius:var(--radius-sm);
  border:1px dashed rgba(126,168,255,.22);background:rgba(126,168,255,.04);text-align:center;
}

/* ============ 数据指标 ============ */
.stat{
  padding:26px 24px;border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(56,189,248,.12),rgba(99,102,241,.07));
  border:1px solid var(--line);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.stat:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:0 24px 48px -32px rgba(56,189,248,.9);}
.stat b{display:block;font-size:30px;font-weight:800;letter-spacing:-1.2px;color:#ecf7ff;line-height:1.15;}
.stat span{display:block;margin-top:8px;font-size:12.9px;color:var(--txt-2);line-height:1.65;}

/* ============ 评价 ============ */
.quote{padding:24px;border-radius:var(--radius);background:var(--panel);border:1px solid var(--line);transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);}
.quote:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:0 24px 48px -30px rgba(3,10,30,.98);}
.quote .stars{display:flex;gap:3px;margin-bottom:13px;color:#ffc861;}
.quote .stars svg{width:14px;height:14px;}
.quote p{font-size:13.9px;line-height:1.82;color:#d3e2fb;}
.quote .who{margin-top:15px;display:flex;align-items:center;gap:9px;font-size:12.6px;color:var(--txt-3);}
.quote .who i{
  width:26px;height:26px;border-radius:50%;flex:none;display:grid;place-items:center;
  background:rgba(56,189,248,.16);color:#a9e4ff;font-style:normal;font-size:11.5px;font-weight:700;
}
.rating-box{
  display:flex;align-items:center;gap:16px;padding:18px 24px;margin-bottom:22px;
  border-radius:var(--radius);background:rgba(56,189,248,.09);border:1px solid rgba(56,189,248,.26);flex-wrap:wrap;
}
.rating-box strong{font-size:30px;font-weight:800;letter-spacing:-1px;color:#eaf8ff;}
.rating-box .rating-desc{font-size:13px;color:var(--txt-2);line-height:1.6;}

/* ============ 清单 ============ */
.check-list li{
  display:flex;gap:12px;padding:13px 0;font-size:14px;color:var(--txt-2);
  border-bottom:1px dashed rgba(126,168,255,.14);line-height:1.7;
}
.check-list li:last-child{border-bottom:0;padding-bottom:0;}
.check-list svg{flex:none;width:18px;height:18px;color:var(--good);margin-top:4px;}

/* ============ 入口矩阵 ============ */
.entry-wall{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
.entry-card{
  display:block;padding:26px 24px;border-radius:var(--radius);
  background:var(--panel);border:1px solid var(--line);
  transition:transform var(--ease),border-color var(--ease),background var(--ease),box-shadow var(--ease);
}
.entry-card:hover{
  transform:translateY(-4px);border-color:var(--line-2);background:var(--panel-2);
  box-shadow:0 26px 50px -30px rgba(56,189,248,.85);
}
.entry-card strong{display:block;font-size:16px;color:#f0f7ff;margin-bottom:8px;}
.entry-card span{display:block;font-size:13.2px;color:var(--txt-2);line-height:1.75;}
.entry-card .arrow{margin-top:16px;font-size:12.8px;color:#8fd8f7;display:inline-flex;gap:5px;align-items:center;}

/* ============ 下载引导 / CTA ============ */
.cta-band{
  border-radius:20px;padding:44px 40px;
  background:
    radial-gradient(600px 260px at 88% 0%,rgba(56,189,248,.24),transparent 68%),
    linear-gradient(135deg,rgba(34,211,238,.13),rgba(99,102,241,.16));
  border:1px solid var(--line-2);
  display:grid;grid-template-columns:1.15fr .85fr;gap:34px;align-items:center;
}
.cta-band h2{font-size:clamp(21px,2.4vw,28px);font-weight:780;letter-spacing:-.3px;line-height:1.36;}
.cta-band p{margin-top:13px;font-size:14.4px;line-height:1.85;color:#c3d7f6;}
.cta-actions{display:flex;flex-direction:column;gap:12px;align-items:flex-start;}
.cta-actions .btn{width:100%;}
.cta-meta{font-size:12.5px;color:var(--txt-3);margin-top:4px;}

/* ============ 订阅 ============ */
.subscribe{
  border-radius:20px;padding:34px 36px;
  background:linear-gradient(120deg,rgba(34,211,238,.1),rgba(99,102,241,.12));
  border:1px solid var(--line);
  display:grid;grid-template-columns:1.1fr .9fr;gap:30px;align-items:center;
}
.subscribe h2{font-size:20px;font-weight:750;letter-spacing:-.2px;}
.subscribe p{margin-top:10px;font-size:13.8px;line-height:1.8;color:var(--txt-2);}
.sub-form{display:flex;gap:10px;flex-wrap:wrap;}
.sub-form input{
  flex:1 1 200px;min-height:46px;padding:11px 16px;border-radius:10px;
  background:rgba(4,10,24,.62);border:1px solid var(--line);color:#fff;font-size:14px;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.sub-form input::placeholder{color:var(--txt-3);}
.sub-form input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(56,189,248,.18);}
.form-note{font-size:12px;color:var(--txt-3);margin-top:11px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-deep);border-top:1px solid var(--line);padding:58px 0 26px;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;}
.foot-brand .brand{margin-bottom:14px;}
.foot-brand p{font-size:13.3px;color:var(--txt-3);line-height:1.85;max-width:360px;}
.foot-title{font-size:13px;letter-spacing:1.2px;color:#eaf4ff;font-weight:700;margin-bottom:16px;}
.foot-list li + li{margin-top:10px;}
.foot-list a{font-size:13.3px;color:var(--txt-2);transition:color var(--ease);}
.foot-list a:hover{color:var(--cyan);}
.copyright{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(126,168,255,.12);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12.5px;color:var(--txt-3);
}
.copyright a{color:var(--txt-3);}
.copyright a:hover{color:var(--cyan);}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:38px;}
  .split{grid-template-columns:1fr;gap:30px;}
  .news-layout{grid-template-columns:1fr;}
  .side-panel{position:static;}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .entry-wall{grid-template-columns:repeat(2,1fr);}
  .cta-band{grid-template-columns:1fr;gap:26px;padding:34px 28px;}
  .subscribe{grid-template-columns:1fr;gap:22px;padding:30px 26px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .nav-links a{padding:8px 10px;font-size:13.4px;}
}
@media (max-width:860px){
  .nav-toggle{display:inline-flex;}
  .nav-links{
    position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;gap:2px;
    margin:0;padding:12px 18px 18px;
    background:rgba(6,12,28,.98);
    border-bottom:1px solid var(--line);
    box-shadow:0 26px 50px -30px rgba(0,0,0,.95);
    display:none;
  }
  .nav-links.is-open{display:flex;}
  .nav-links a{padding:12px 14px;font-size:14.5px;min-height:46px;}
  .nav-cta{
    margin:10px 18px 0;position:absolute;top:100%;
  }
  .nav-wrap{position:relative;}
  .site-header .nav-cta{display:none;}
}
@media (max-width:768px){
  .section{padding:54px 0;}
  .hero{padding:40px 0 52px;}
  .grid-4,.grid-3,.grid-2{grid-template-columns:1fr;}
  .entry-wall{grid-template-columns:1fr;}
  .icon-matrix{grid-template-columns:repeat(3,1fr);gap:10px;}
  .calendar-item{grid-template-columns:1fr;gap:6px;}
  .section-head{margin-bottom:28px;}
  .task-panel{padding:24px 20px;}
  .cta-band{padding:28px 22px;}
  .subscribe{padding:26px 20px;}
  .foot-grid{grid-template-columns:1fr;gap:28px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .hero h1{font-size:25px;}
  .hero-lead{font-size:14.2px;}
  .icon-matrix{grid-template-columns:repeat(2,1fr);}
  .btn{width:100%;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .sub-form input{flex:1 1 100%;}
  .sub-form .btn{width:100%;}
  .stat b{font-size:26px;}
  .card{padding:19px;}
  .news-item{padding:16px;}
  .rating-box{padding:16px 18px;}
  .copyright{flex-direction:column;gap:8px;}
}

/* roulang page: article */
:root{
 --bg:#050a18;
 --bg-soft:#081126;
 --bg-deep:#03060f;
 --panel:rgba(126,168,255,.055);
 --panel-2:rgba(126,168,255,.095);
 --line:rgba(126,168,255,.16);
 --line-2:rgba(126,196,255,.44);
 --txt:#e9effd;
 --txt-2:#a6b6d8;
 --txt-3:#7182a6;
 --cyan:#38bdf8;
 --indigo:#6366f1;
 --teal:#22d3ee;
 --good:#34e0b4;
 --radius:14px;
 --radius-sm:10px;
 --shadow:0 24px 60px -30px rgba(2,8,26,.95);
 --glow:0 0 0 1px rgba(56,189,248,.4),0 12px 34px -12px rgba(56,189,248,.62);
 --ease:.22s ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
 margin:0;
 background:var(--bg);
 color:var(--txt);
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
 font-size:15px;
 line-height:1.75;
 -webkit-font-smoothing:antialiased;
 overflow-x:hidden;
}
a{color:inherit;text-decoration:none;transition:color var(--ease),opacity var(--ease);}
img{max-width:100%;display:block;border:0;}
button,input{font:inherit;}
button{cursor:pointer;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding-left:20px;}
a:focus-visible,button:focus-visible,.btn:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 22px;}
/* ============ 顶部导航 ============ */
.site-header{
 position:sticky;top:0;z-index:80;
 background:rgba(5,10,24,.74);
 backdrop-filter:blur(16px);
 -webkit-backdrop-filter:blur(16px);
 border-bottom:1px solid var(--line);
 transition:box-shadow var(--ease),background var(--ease);
}
.site-header.is-stuck{
 background:rgba(5,10,24,.92);
 box-shadow:0 18px 44px -26px rgba(0,0,0,.95);
}
.nav-wrap{display:flex;align-items:center;gap:18px;min-height:64px;flex-wrap:wrap;}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;letter-spacing:.3px;color:#fff;white-space:nowrap;}
.brand-mark{
 width:30px;height:30px;border-radius:9px;display:grid;place-items:center;
 background:linear-gradient(135deg,#3cc8f8,#5d68f0);
 box-shadow:0 0 0 1px rgba(120,220,255,.45),0 10px 22px -10px rgba(56,189,248,.9);
 color:#03101f;font-size:12px;font-weight:800;letter-spacing:0;flex:none;
}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-links a{
 display:inline-flex;align-items:center;min-height:38px;padding:8px 13px;border-radius:9px;
 font-size:14px;color:var(--txt-2);
 transition:color var(--ease),background var(--ease),box-shadow var(--ease);
}
.nav-links a:hover{color:#fff;background:rgba(126,168,255,.1);}
.nav-links a.is-active{
 color:#fff;background:rgba(56,189,248,.14);
 box-shadow:inset 0 0 0 1px rgba(56,189,248,.36);
}
.nav-cta{margin-left:10px;padding:10px 18px;min-height:40px;font-size:13.6px;}
.nav-toggle{
 display:none;margin-left:auto;width:42px;height:42px;border-radius:10px;
 background:rgba(126,168,255,.08);border:1px solid var(--line);color:#d7e6ff;
 align-items:center;justify-content:center;transition:background var(--ease);
}
.nav-toggle:hover{background:rgba(126,168,255,.16);}
.nav-toggle svg{width:20px;height:20px;}
/* ============ 按钮 ============ */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 min-height:44px;padding:11px 22px;border-radius:10px;border:1px solid transparent;
 font-size:14px;font-weight:600;letter-spacing:.2px;
 transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
}
.btn-primary{
 background:linear-gradient(135deg,#3ecbf9,#4f7cf7);color:#03101f;
 box-shadow:0 0 0 1px rgba(130,225,255,.42),0 16px 34px -16px rgba(56,189,248,.9);
}
.btn-primary:hover{
 transform:translateY(-2px);color:#01101d;
 box-shadow:0 0 0 1px rgba(150,235,255,.66),0 22px 42px -16px rgba(56,189,248,1);
}
.btn-ghost{
 border-color:var(--line-2);color:#cfe4ff;background:rgba(126,168,255,.05);
}
.btn-ghost:hover{background:rgba(126,168,255,.13);color:#fff;transform:translateY(-2px);}
.btn:active{transform:translateY(0);}
.btn-sm{min-height:38px;padding:8px 16px;font-size:13px;border-radius:9px;}
/* ============ 标签 ============ */
.tag{
 display:inline-flex;align-items:center;font-size:12.5px;color:#a9c9f2;
 padding:5px 13px;border-radius:999px;background:rgba(126,168,255,.08);border:1px solid var(--line);
 line-height:1.5;
}
.tag-solid{background:rgba(56,189,248,.14);border-color:rgba(56,189,248,.36);color:#bfe9ff;}
/* ============ 通用 section ============ */
.section{padding:70px 0;position:relative;}
.section--alt{background:linear-gradient(180deg,rgba(8,17,38,.92),rgba(5,10,24,.99));border-top:1px solid rgba(126,168,255,.09);border-bottom:1px solid rgba(126,168,255,.09);}
.section--deep{background:linear-gradient(180deg,#040814,#061027);}
.section-head{max-width:760px;margin-bottom:34px;}
.section-head h2{font-size:clamp(21px,2.4vw,29px);font-weight:750;letter-spacing:-.3px;line-height:1.35;color:#eef6ff;}
.section-head p{margin-top:13px;font-size:14.5px;line-height:1.85;color:var(--txt-2);}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:1.4px;
 color:#7fd6f5;margin-bottom:12px;
}
.eyebrow::before{content:"";width:24px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--cyan),transparent);}
/* ============ 文章头图 ============ */
.article-hero{
 position:relative;overflow:hidden;padding:34px 0 58px;
 background:
 radial-gradient(900px 420px at 86% 6%,rgba(56,189,248,.18),transparent 62%),
 linear-gradient(180deg,rgba(5,10,24,.78),rgba(5,10,24,.97)),
 url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
 border-bottom:1px solid rgba(126,168,255,.1);
}
.article-hero::after{
 content:"";position:absolute;left:-12%;bottom:-46%;width:56%;height:82%;
 background:radial-gradient(closest-side,rgba(99,102,241,.24),transparent 70%);
 pointer-events:none;
}
.article-hero .container{position:relative;z-index:2;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--txt-3);margin-bottom:22px;}
.breadcrumb a{color:#9fc4ea;}
.breadcrumb a:hover{color:#8fe3ff;}
.breadcrumb .sep{color:rgba(126,168,255,.45);}
.article-hero h1{
 font-size:clamp(24px,3vw,37px);line-height:1.34;font-weight:800;letter-spacing:-.5px;
 color:#f2f8ff;max-width:920px;
}
.article-lead{
 margin-top:18px;font-size:15px;line-height:1.9;color:var(--txt-2);max-width:840px;
 padding-left:16px;border-left:2px solid rgba(56,189,248,.4);
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;margin-top:22px;font-size:13px;color:var(--txt-3);}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:7px;}
.article-meta .meta-item svg{width:15px;height:15px;stroke:var(--cyan);opacity:.85;}
.hero-tags{margin-top:20px;display:flex;gap:9px;flex-wrap:wrap;}
/* ============ 正文布局 ============ */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 322px;gap:42px;align-items:start;}
.article-body{
 font-size:15.5px;line-height:1.95;color:#cfdaee;letter-spacing:.1px;
}
.article-body > *:first-child{margin-top:0;}
.article-body h2{
 margin:38px 0 16px;font-size:clamp(19px,2.1vw,23px);font-weight:750;line-height:1.5;color:#eef6ff;
 padding-left:14px;border-left:3px solid var(--cyan);letter-spacing:-.2px;
}
.article-body h3{margin:28px 0 12px;font-size:17px;font-weight:700;line-height:1.55;color:#e4eeff;}
.article-body h4{margin:22px 0 10px;font-size:15.5px;font-weight:700;color:#dbe8ff;}
.article-body p{margin:0 0 17px;}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px;}
.article-body li{margin-bottom:9px;}
.article-body li::marker{color:var(--cyan);}
.article-body strong{color:#ffffff;font-weight:700;}
.article-body a{color:#6fdcff;text-decoration:underline;text-decoration-color:rgba(111,220,255,.4);text-underline-offset:3px;}
.article-body a:hover{color:#a5ecff;}
.article-body img{border-radius:var(--radius);margin:24px auto;border:1px solid var(--line);}
.article-body blockquote{
 margin:26px 0;padding:20px 24px;border-left:3px solid var(--cyan);
 background:rgba(56,189,248,.08);border-radius:0 var(--radius-sm) var(--radius-sm) 0;
 color:#dbeaff;font-size:15px;line-height:1.85;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14px;}
.article-body th,.article-body td{padding:10px 13px;border:1px solid var(--line);text-align:left;}
.article-body th{background:rgba(126,168,255,.09);color:#e6f1ff;font-weight:600;}
.article-body tr:nth-child(even) td{background:rgba(126,168,255,.035);}
.article-body code{background:rgba(126,168,255,.12);border-radius:5px;padding:2px 6px;font-size:13.5px;color:#a9e7ff;}
.article-body hr{border:0;height:1px;background:var(--line);margin:30px 0;}
.pull-quote{
 margin:34px 0 8px;padding:26px 28px;border-radius:var(--radius);
 background:linear-gradient(135deg,rgba(56,189,248,.13),rgba(99,102,241,.1));
 border:1px solid rgba(56,189,248,.3);position:relative;
}
.pull-quote::before{
 content:"“";position:absolute;top:2px;left:14px;font-size:46px;line-height:1;
 color:rgba(56,189,248,.34);font-family:Georgia,serif;
}
.pull-quote p{padding-left:32px;font-size:16px;line-height:1.85;color:#e2eeff;margin:0;}
.pull-quote cite{display:block;padding-left:32px;margin-top:10px;font-size:13px;color:var(--txt-3);font-style:normal;}
.empty-state{
 text-align:center;padding:56px 24px;border-radius:var(--radius);
 background:var(--panel);border:1px dashed rgba(126,168,255,.3);
}
.empty-state h2{font-size:21px;color:#eef6ff;margin-bottom:12px;border:0;padding:0;}
.empty-state p{color:var(--txt-2);font-size:14.5px;margin-bottom:22px;}
/* ============ 侧栏 ============ */
.article-side{position:sticky;top:88px;display:grid;gap:18px;}
.side-card{
 background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
 padding:22px;backdrop-filter:blur(8px);
 transition:border-color var(--ease),box-shadow var(--ease),transform var(--ease);
}
.side-card:hover{border-color:var(--line-2);box-shadow:var(--shadow);transform:translateY(-3px);}
.side-title{font-size:15px;font-weight:700;color:#eaf3ff;margin-bottom:16px;display:flex;align-items:center;gap:8px;}
.side-title::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan);}
.spec-list{list-style:none;padding:0;margin:0;}
.spec-list li{
 display:flex;justify-content:space-between;gap:12px;align-items:baseline;
 padding:10px 0;border-bottom:1px dashed rgba(126,168,255,.16);font-size:13.5px;color:var(--txt-3);
}
.spec-list li:last-child{border-bottom:0;padding-bottom:0;}
.spec-list strong{color:#d9e8ff;font-weight:600;font-size:13.5px;text-align:right;}
.side-note{font-size:13.5px;line-height:1.85;color:var(--txt-2);margin:0;}
/* ============ 通用卡片网格 ============ */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.point-card{
 background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
 padding:26px 24px;position:relative;overflow:hidden;
 transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease),background var(--ease);
}
.point-card::before{
 content:"";position:absolute;inset:0 0 auto 0;height:2px;
 background:linear-gradient(90deg,rgba(56,189,248,.75),rgba(99,102,241,0));
 opacity:.65;transition:opacity var(--ease);
}
.point-card:hover{
 transform:translateY(-4px);border-color:var(--line-2);
 box-shadow:0 26px 54px -30px rgba(2,8,26,.98),0 0 0 1px rgba(56,189,248,.22);
 background:var(--panel-2);
}
.point-card:hover::before{opacity:1;}
.point-num{
 display:inline-flex;align-items:center;justify-content:center;
 width:34px;height:34px;border-radius:10px;margin-bottom:16px;
 background:rgba(56,189,248,.14);border:1px solid rgba(56,189,248,.32);
 color:#9fe4ff;font-size:14px;font-weight:700;
}
.point-card h3{font-size:16.5px;font-weight:700;color:#eef6ff;margin-bottom:10px;line-height:1.5;}
.point-card p{font-size:14px;line-height:1.85;color:var(--txt-2);margin:0;}
/* ============ 频道矩阵 ============ */
.channel-card{
 display:block;border-radius:var(--radius);overflow:hidden;
 background:var(--panel);border:1px solid var(--line);
 transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.channel-card:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:0 28px 58px -32px rgba(2,8,26,1);}
.channel-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;}
.channel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease,filter var(--ease);filter:saturate(.95);}
.channel-card:hover .channel-thumb img{transform:scale(1.04);filter:saturate(1.08);}
.channel-thumb::after{
 content:"";position:absolute;inset:0;
 background:linear-gradient(180deg,rgba(5,10,24,.1),rgba(5,10,24,.82));
}
.channel-body{padding:20px 22px 24px;}
.channel-body h3{font-size:17px;font-weight:700;color:#eef6ff;margin-bottom:9px;}
.channel-body p{font-size:13.8px;line-height:1.8;color:var(--txt-2);margin-bottom:16px;}
.channel-more{
 display:inline-flex;align-items:center;gap:7px;font-size:13px;font-weight:600;color:#8fe3ff;
}
.channel-more svg{width:15px;height:15px;transition:transform var(--ease);}
.channel-card:hover .channel-more svg{transform:translateX(4px);}
/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px;}
.faq-item{
 background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
 padding:22px 24px;transition:border-color var(--ease),background var(--ease),transform var(--ease);
}
.faq-item:hover{border-color:var(--line-2);background:var(--panel-2);transform:translateY(-2px);}
.faq-item h3{font-size:15.5px;font-weight:700;color:#eaf3ff;margin-bottom:10px;line-height:1.6;display:flex;gap:10px;}
.faq-item h3 span{color:var(--cyan);flex:none;}
.faq-item p{font-size:14px;line-height:1.88;color:var(--txt-2);margin:0;}
/* ============ CTA ============ */
.cta-panel{
 position:relative;overflow:hidden;border-radius:18px;padding:52px 44px;
 background:
 radial-gradient(600px 300px at 88% 12%,rgba(56,189,248,.24),transparent 66%),
 linear-gradient(135deg,rgba(9,20,44,.96),rgba(6,14,34,.98));
 border:1px solid rgba(56,189,248,.3);
 box-shadow:0 40px 90px -50px rgba(56,189,248,.7);
 display:grid;grid-template-columns:1.25fr .75fr;gap:36px;align-items:center;
}
.cta-panel h2{font-size:clamp(21px,2.5vw,30px);font-weight:800;color:#f2f8ff;line-height:1.4;letter-spacing:-.3px;}
.cta-panel p{margin-top:14px;font-size:14.5px;line-height:1.85;color:var(--txt-2);max-width:560px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end;}
/* ============ 页脚 ============ */
.site-footer{
 background:linear-gradient(180deg,#040814,#020510);
 border-top:1px solid rgba(126,168,255,.14);
 padding:56px 0 26px;margin-top:0;
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;}
.foot-brand p{margin-top:16px;font-size:13.8px;line-height:1.9;color:var(--txt-3);max-width:400px;}
.foot-title{font-size:14px;font-weight:700;color:#e6f1ff;margin-bottom:16px;}
.foot-list{list-style:none;padding:0;margin:0;display:grid;gap:10px;}
.foot-list a{font-size:13.8px;color:var(--txt-3);}
.foot-list a:hover{color:#8fe3ff;}
.copyright{
 margin-top:38px;padding-top:22px;border-top:1px solid rgba(126,168,255,.12);
 display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
 font-size:12.8px;color:var(--txt-3);
}
/* ============ 响应式 ============ */
@media (max-width:1024px){
 .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;}
 .article-side{position:static;grid-template-columns:repeat(2,minmax(0,1fr));}
 .cta-panel{grid-template-columns:1fr;padding:42px 30px;}
 .cta-actions{justify-content:flex-start;}
 .grid-3{grid-template-columns:repeat(2,1fr);}
 .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
 .foot-brand{grid-column:1/-1;}
}
@media (max-width:900px){
 .nav-toggle{display:inline-flex;order:3;}
 .nav-cta{order:2;margin-left:auto;min-height:38px;padding:8px 15px;font-size:13px;}
 .nav-links{
  order:4;flex-basis:100%;margin-left:0;display:none;
  flex-direction:column;align-items:stretch;gap:4px;
  padding:10px 0 16px;border-top:1px solid rgba(126,168,255,.12);margin-top:10px;
 }
 .nav-links.is-open{display:flex;}
 .nav-links a{min-height:44px;padding:11px 14px;font-size:14.5px;}
 .nav-wrap{gap:12px;}
 .article-hero{padding:26px 0 44px;}
 .section{padding:52px 0;}
}
@media (max-width:768px){
 .grid-2,.grid-3{grid-template-columns:1fr;}
 .article-side{grid-template-columns:1fr;}
 .article-body{font-size:15px;line-height:1.9;}
 .article-lead{font-size:14.5px;padding-left:13px;}
 .pull-quote{padding:22px 20px;}
 .pull-quote p{padding-left:26px;font-size:15px;}
 .cta-panel{padding:34px 22px;border-radius:14px;}
 .foot-grid{grid-template-columns:1fr;gap:26px;}
 .copyright{flex-direction:column;gap:8px;}
}
@media (max-width:520px){
 .container{padding:0 16px;}
 .brand{font-size:15px;}
 .brand-mark{width:27px;height:27px;border-radius:8px;font-size:11px;}
 .nav-cta{padding:8px 12px;font-size:12.5px;}
 .article-hero h1{font-size:22px;line-height:1.42;}
 .article-meta{font-size:12.4px;gap:8px 12px;}
 .btn{width:100%;}
 .cta-actions{flex-direction:column;}
 .section{padding:44px 0;}
 .point-card,.side-card,.faq-item{padding:20px 18px;}
}

/* roulang page: category1 */
:root{
 --bg:#050a18;
 --bg-soft:#081126;
 --bg-deep:#03060f;
 --panel:rgba(126,168,255,.055);
 --panel-2:rgba(126,168,255,.095);
 --line:rgba(126,168,255,.16);
 --line-2:rgba(126,196,255,.44);
 --txt:#e9effd;
 --txt-2:#a6b6d8;
 --txt-3:#7182a6;
 --cyan:#38bdf8;
 --indigo:#6366f1;
 --teal:#22d3ee;
 --good:#34e0b4;
 --radius:14px;
 --radius-sm:10px;
 --shadow:0 24px 60px -30px rgba(2,8,26,.95);
 --glow:0 0 0 1px rgba(56,189,248,.4),0 12px 34px -12px rgba(56,189,248,.62);
 --ease:.22s ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
 margin:0;
 background:var(--bg);
 color:var(--txt);
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
 font-size:15px;
 line-height:1.75;
 -webkit-font-smoothing:antialiased;
 overflow-x:hidden;
}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;border:0;}
button,input{font:inherit;}
button{cursor:pointer;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 22px;}
::selection{background:rgba(56,189,248,.35);color:#fff;}

/* ============ 顶部导航 ============ */
.site-header{
 position:sticky;top:0;z-index:80;
 background:rgba(5,10,24,.74);
 backdrop-filter:blur(16px);
 -webkit-backdrop-filter:blur(16px);
 border-bottom:1px solid var(--line);
 transition:box-shadow var(--ease),background var(--ease);
}
.site-header.is-stuck{
 background:rgba(5,10,24,.92);
 box-shadow:0 18px 44px -26px rgba(0,0,0,.95);
}
.nav-wrap{display:flex;align-items:center;gap:20px;min-height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;letter-spacing:.3px;color:#fff;white-space:nowrap;}
.brand-mark{
 width:30px;height:30px;border-radius:9px;display:grid;place-items:center;
 background:linear-gradient(135deg,#3cc8f8,#5d68f0);
 box-shadow:0 0 0 1px rgba(120,220,255,.45),0 10px 22px -10px rgba(56,189,248,.9);
 color:#03101f;font-size:12px;font-weight:800;letter-spacing:0;
}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-links a{
 display:inline-flex;align-items:center;min-height:38px;padding:8px 13px;border-radius:9px;
 font-size:14px;color:var(--txt-2);transition:color var(--ease),background var(--ease),box-shadow var(--ease);
}
.nav-links a:hover{color:#fff;background:rgba(126,168,255,.1);}
.nav-links a.is-active{
 color:#fff;background:rgba(56,189,248,.14);
 box-shadow:inset 0 0 0 1px rgba(56,189,248,.36);
}
.nav-cta{margin-left:10px;padding:10px 18px;min-height:40px;font-size:13.6px;}
.nav-toggle{
 display:none;margin-left:auto;width:42px;height:42px;border-radius:10px;
 background:rgba(126,168,255,.08);border:1px solid var(--line);color:#d7e6ff;
 align-items:center;justify-content:center;
}
.nav-toggle svg{width:20px;height:20px;}

/* ============ 按钮 / 标签 ============ */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 min-height:44px;padding:11px 22px;border-radius:10px;border:1px solid transparent;
 font-size:14px;font-weight:600;letter-spacing:.2px;
 transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
}
.btn-primary{
 background:linear-gradient(135deg,#3ecbf9,#4f7cf7);color:#03101f;
 box-shadow:0 0 0 1px rgba(130,225,255,.42),0 16px 34px -16px rgba(56,189,248,.9);
}
.btn-primary:hover{
 transform:translateY(-2px);color:#01101d;
 box-shadow:0 0 0 1px rgba(150,235,255,.66),0 22px 42px -16px rgba(56,189,248,1);
}
.btn-ghost{border-color:var(--line-2);color:#cfe4ff;background:rgba(126,168,255,.05);}
.btn-ghost:hover{background:rgba(126,168,255,.13);color:#fff;transform:translateY(-2px);}
.btn:active{transform:translateY(0);}
.btn:focus-visible,.nav-links a:focus-visible,.series-chip:focus-visible,.foot-list a:focus-visible{
 outline:2px solid var(--cyan);outline-offset:3px;
}
.btn-sm{min-height:38px;padding:8px 16px;font-size:13px;border-radius:9px;}
.tag{
 display:inline-flex;align-items:center;font-size:12.5px;color:#a9c9f2;
 padding:5px 13px;border-radius:999px;background:rgba(126,168,255,.08);border:1px solid var(--line);
}
.tag-solid{background:rgba(56,189,248,.14);border-color:rgba(56,189,248,.36);color:#bfe9ff;}

/* ============ Hero（分类页横幅） ============ */
.cat-hero{
 position:relative;overflow:hidden;
 padding:34px 0 66px;
 background:linear-gradient(180deg,rgba(4,9,22,.86),rgba(5,10,24,.97));
 border-bottom:1px solid rgba(126,168,255,.12);
}
.cat-hero-bg{
 position:absolute;inset:0;
 background:
  radial-gradient(760px 380px at 78% 6%,rgba(56,189,248,.2),transparent 62%),
  radial-gradient(560px 320px at 12% 92%,rgba(99,102,241,.22),transparent 68%),
  url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
 opacity:.9;
}
.cat-hero::after{
 content:"";position:absolute;inset:0;
 background:linear-gradient(180deg,rgba(5,10,24,.5),rgba(5,10,24,.9) 78%);
 pointer-events:none;
}
.cat-hero .container{position:relative;z-index:2;}
.series-bar{
 display:flex;align-items:center;gap:9px;flex-wrap:wrap;
 padding:9px;border-radius:12px;
 background:rgba(8,17,38,.62);
 border:1px solid var(--line);
 backdrop-filter:blur(14px);
 -webkit-backdrop-filter:blur(14px);
 margin-bottom:36px;
}
.series-chip{
 display:inline-flex;align-items:center;gap:7px;
 min-height:34px;padding:6px 15px;border-radius:9px;
 font-size:13px;color:var(--txt-2);
 border:1px solid transparent;
 transition:all var(--ease);
}
.series-chip:hover{color:#fff;background:rgba(126,168,255,.12);border-color:rgba(126,196,255,.3);}
.series-chip.is-on{
 color:#d5f2ff;background:rgba(56,189,248,.16);
 border-color:rgba(56,189,248,.42);
 box-shadow:0 10px 24px -16px rgba(56,189,248,.9);
}
.cat-hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center;}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:1.4px;
 color:#7fd6f5;margin-bottom:14px;
}
.eyebrow::before{content:"";width:24px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--cyan),transparent);}
.cat-hero h1{
 font-size:clamp(26px,3.3vw,40px);line-height:1.28;font-weight:800;letter-spacing:-.6px;color:#f2f8ff;
}
.cat-hero h1 .hl{
 background:linear-gradient(100deg,#5fd8ff,#7d8bff);
 -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{margin-top:18px;font-size:15px;line-height:1.85;color:var(--txt-2);max-width:620px;}
.hero-actions{margin-top:26px;display:flex;gap:12px;flex-wrap:wrap;}
.hero-tags{margin-top:22px;display:flex;gap:9px;flex-wrap:wrap;}

/* 玻璃信息面板 */
.glass-panel{
 border-radius:16px;
 background:linear-gradient(160deg,rgba(126,168,255,.14),rgba(126,168,255,.035));
 border:1px solid rgba(126,196,255,.28);
 box-shadow:var(--shadow);
 backdrop-filter:blur(16px);
 -webkit-backdrop-filter:blur(16px);
 padding:24px;
}
.glass-panel h2{font-size:15px;font-weight:700;color:#e6f4ff;letter-spacing:.2px;display:flex;align-items:center;gap:9px;}
.glass-panel h2 svg{width:17px;height:17px;color:var(--cyan);}
.panel-list{margin-top:16px;display:grid;gap:1px;background:rgba(126,168,255,.14);border-radius:10px;overflow:hidden;}
.panel-row{
 display:flex;align-items:center;justify-content:space-between;gap:14px;
 padding:12px 15px;background:rgba(6,13,30,.82);font-size:13.4px;
}
.panel-row span{color:var(--txt-2);}
.panel-row strong{color:#dff1ff;font-weight:600;}
.panel-foot{margin-top:16px;font-size:12.6px;color:var(--txt-3);line-height:1.7;}

/* ============ 通用 section ============ */
.section{padding:72px 0;position:relative;}
.section--alt{background:linear-gradient(180deg,rgba(8,17,38,.92),rgba(5,10,24,.99));border-top:1px solid rgba(126,168,255,.09);border-bottom:1px solid rgba(126,168,255,.09);}
.section--deep{background:linear-gradient(180deg,#040814,#061027);}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head h2{font-size:clamp(21px,2.4vw,29px);font-weight:750;letter-spacing:-.3px;line-height:1.35;color:#eef6ff;}
.section-head h2::after{
 content:"";display:block;width:46px;height:3px;border-radius:3px;margin-top:14px;
 background:linear-gradient(90deg,var(--cyan),rgba(99,102,241,.2));
}
.section-head p{margin-top:14px;font-size:14.5px;line-height:1.85;color:var(--txt-2);}

/* ============ 网格与卡片 ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.card{
 position:relative;display:flex;flex-direction:column;
 border-radius:var(--radius);
 background:linear-gradient(170deg,rgba(126,168,255,.075),rgba(126,168,255,.02));
 border:1px solid var(--line);
 box-shadow:0 18px 44px -34px rgba(0,0,0,.95);
 overflow:hidden;
 transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease),background var(--ease);
}
.card:hover{
 transform:translateY(-4px);
 border-color:var(--line-2);
 background:linear-gradient(170deg,rgba(126,168,255,.12),rgba(126,168,255,.04));
 box-shadow:0 30px 60px -32px rgba(2,10,32,1),0 0 0 1px rgba(56,189,248,.22);
}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.card:hover .card-media img{transform:scale(1.05);}
.card-media::after{
 content:"";position:absolute;inset:0;
 background:linear-gradient(180deg,rgba(4,9,22,.05),rgba(4,9,22,.72));
}
.card-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-title{font-size:16.5px;font-weight:700;color:#eaf4ff;line-height:1.45;}
.card-text{font-size:14px;color:var(--txt-2);line-height:1.78;}
.card-tags{margin-top:auto;padding-top:12px;display:flex;gap:8px;flex-wrap:wrap;}
.badge-num{
 display:inline-flex;align-items:center;justify-content:center;
 width:26px;height:26px;border-radius:8px;font-size:12px;font-weight:700;
 background:rgba(56,189,248,.16);color:#bde9ff;border:1px solid rgba(56,189,248,.34);
}

/* ============ 安装步骤 ============ */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;counter-reset:step;}
.step{
 position:relative;padding:26px 22px 24px;border-radius:var(--radius);
 background:rgba(9,19,42,.7);border:1px solid var(--line);
 transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.step:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:0 26px 52px -34px rgba(2,10,32,1);}
.step-num{
 display:inline-flex;align-items:center;justify-content:center;
 width:38px;height:38px;border-radius:11px;margin-bottom:16px;
 font-size:14px;font-weight:800;color:#04101f;
 background:linear-gradient(135deg,#4ed2f8,#6172f3);
 box-shadow:0 0 0 1px rgba(140,228,255,.4),0 12px 26px -14px rgba(56,189,248,.9);
}
.step h3{font-size:16px;font-weight:700;color:#eaf4ff;}
.step p{margin-top:9px;font-size:14px;color:var(--txt-2);line-height:1.78;}

/* ============ 数据卡 ============ */
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;margin-bottom:26px;}
.stat{
 padding:20px;border-radius:var(--radius-sm);
 background:linear-gradient(160deg,rgba(126,168,255,.12),rgba(126,168,255,.03));
 border:1px solid var(--line);
 text-align:left;
}
.stat strong{display:block;font-size:24px;font-weight:800;letter-spacing:-.5px;color:#8fe0ff;}
.stat span{display:block;margin-top:6px;font-size:12.8px;color:var(--txt-2);}
.check-list{display:grid;gap:12px;}
.check-list li{
 display:flex;align-items:flex-start;gap:11px;
 padding:14px 16px;border-radius:var(--radius-sm);
 background:rgba(8,17,38,.68);border:1px solid rgba(126,168,255,.12);
 font-size:14px;color:var(--txt-2);line-height:1.75;
 transition:border-color var(--ease),background var(--ease);
}
.check-list li:hover{border-color:rgba(126,196,255,.32);background:rgba(12,24,50,.8);}
.check-list svg{width:17px;height:17px;flex:none;margin-top:3px;color:var(--good);}
.check-list b{color:#e2f1ff;font-weight:600;}

/* ============ 适配表 ============ */
.table-wrap{
 border-radius:var(--radius);overflow:hidden;
 border:1px solid var(--line);background:rgba(8,17,38,.62);
}
.device-table{width:100%;margin:0;border-collapse:collapse;font-size:13.8px;}
.device-table thead th{
 padding:14px 16px;text-align:left;font-size:12.8px;letter-spacing:.6px;
 color:#8fd9f8;background:rgba(56,189,248,.09);
 border-bottom:1px solid rgba(126,168,255,.22);font-weight:600;
}
.device-table td{padding:14px 16px;color:var(--txt-2);border-bottom:1px solid rgba(126,168,255,.1);}
.device-table tbody tr:last-child td{border-bottom:0;}
.device-table tbody tr{transition:background var(--ease);}
.device-table tbody tr:hover{background:rgba(126,168,255,.06);}
.device-table td:first-child{color:#e4f2ff;font-weight:600;}

/* ============ FAQ ============ */
.faq{display:grid;gap:12px;}
.faq details{
 border-radius:var(--radius-sm);
 background:rgba(9,19,42,.72);
 border:1px solid var(--line);
 transition:border-color var(--ease),background var(--ease);
}
.faq details[open]{border-color:rgba(56,189,248,.38);background:rgba(12,24,50,.86);}
.faq summary{
 list-style:none;cursor:pointer;
 display:flex;align-items:center;justify-content:space-between;gap:16px;
 padding:16px 20px;font-size:15px;font-weight:600;color:#e6f2ff;
 min-height:44px;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{
 content:"";width:9px;height:9px;flex:none;
 border-right:2px solid #7fc8ee;border-bottom:2px solid #7fc8ee;
 transform:rotate(45deg);transition:transform var(--ease);margin-right:4px;
}
.faq details[open] summary::after{transform:rotate(-135deg);}
.faq p{padding:0 20px 18px;font-size:14px;color:var(--txt-2);line-height:1.82;}

/* ============ 资讯列表 ============ */
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.post-item{
 display:flex;flex-direction:column;gap:10px;
 padding:20px;border-radius:var(--radius-sm);
 background:rgba(9,19,42,.66);border:1px solid var(--line);
 transition:transform var(--ease),border-color var(--ease),background var(--ease),box-shadow var(--ease);
}
.post-item:hover{
 transform:translateY(-3px);border-color:var(--line-2);
 background:rgba(14,27,56,.86);box-shadow:0 24px 48px -32px rgba(2,10,32,1);
}
.post-item h3{font-size:15.4px;font-weight:650;color:#e9f4ff;line-height:1.55;}
.post-item p{font-size:13.6px;color:var(--txt-2);line-height:1.76;}
.post-meta{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:10px;font-size:12.4px;color:var(--txt-3);}
.post-meta .ptag{color:#8fd9f8;padding:2px 9px;border-radius:999px;background:rgba(56,189,248,.12);border:1px solid rgba(56,189,248,.26);}
.list-empty{padding:26px;border-radius:var(--radius-sm);border:1px dashed rgba(126,168,255,.26);color:var(--txt-3);font-size:14px;text-align:center;}

/* ============ 收口 CTA ============ */
.cta-band{
 position:relative;overflow:hidden;
 border-radius:18px;padding:44px 38px;
 background:
  radial-gradient(600px 240px at 82% 0%,rgba(56,189,248,.24),transparent 62%),
  linear-gradient(135deg,rgba(17,32,66,.95),rgba(7,14,32,.98));
 border:1px solid rgba(126,196,255,.3);
 box-shadow:var(--shadow);
 display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(20px,2.2vw,26px);font-weight:750;color:#f1f8ff;line-height:1.4;}
.cta-band p{margin-top:12px;font-size:14.4px;color:var(--txt-2);max-width:620px;line-height:1.8;}
.cta-band .cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{
 margin-top:0;padding:56px 0 30px;
 background:linear-gradient(180deg,rgba(4,9,22,.9),#02060f);
 border-top:1px solid rgba(126,168,255,.14);
}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:38px;}
.foot-brand p{margin-top:14px;font-size:13.6px;color:var(--txt-3);line-height:1.82;max-width:420px;}
.foot-title{font-size:14px;font-weight:700;color:#dbe9ff;margin-bottom:16px;letter-spacing:.3px;}
.foot-list{display:grid;gap:10px;}
.foot-list a{font-size:13.6px;color:var(--txt-2);transition:color var(--ease),padding-left var(--ease);}
.foot-list a:hover{color:#8fd9f8;padding-left:4px;}
.copyright{
 margin-top:40px;padding-top:20px;border-top:1px solid rgba(126,168,255,.12);
 display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
 font-size:12.6px;color:var(--txt-3);
}

/* ============ 响应式 ============ */
@media screen and (max-width:1024px){
 .cat-hero-grid{grid-template-columns:1fr;gap:34px;}
 .grid-3,.steps,.post-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
 .stats{grid-template-columns:repeat(2,minmax(0,1fr));}
 .foot-grid{grid-template-columns:1fr 1fr;gap:30px;}
 .foot-brand{grid-column:1 / -1;}
 .section{padding:60px 0;}
}
@media screen and (max-width:860px){
 .nav-links{
  position:absolute;left:0;right:0;top:100%;
  flex-direction:column;align-items:stretch;gap:4px;
  padding:14px 18px 18px;
  background:rgba(6,13,30,.98);
  border-bottom:1px solid var(--line);
  box-shadow:0 26px 48px -30px rgba(0,0,0,.95);
  display:none;
 }
 .nav-links.is-open{display:flex;}
 .nav-links a{min-height:44px;padding:11px 14px;font-size:14.5px;}
 .nav-toggle{display:inline-flex;}
 .nav-cta{display:none;}
 .grid-2{grid-template-columns:1fr;}
}
@media screen and (max-width:768px){
 .cat-hero{padding:24px 0 52px;}
 .series-bar{margin-bottom:28px;flex-wrap:nowrap;overflow-x:auto;}
 .series-chip{white-space:nowrap;}
 .grid-3,.steps,.post-grid{grid-template-columns:1fr;}
 .cta-band{padding:32px 24px;}
 .section{padding:52px 0;}
 .section-head{margin-bottom:28px;}
 .device-table{font-size:13px;}
 .device-table thead th,.device-table td{padding:12px 12px;}
}
@media screen and (max-width:520px){
 .container{padding:0 16px;}
 .brand{font-size:15.5px;}
 .stats{grid-template-columns:1fr;}
 .foot-grid{grid-template-columns:1fr;}
 .hero-actions .btn,.cta-actions .btn{width:100%;}
 .glass-panel{padding:18px;}
 .copyright{flex-direction:column;align-items:flex-start;gap:8px;}
}

/* roulang page: category3 */
:root{
 --bg:#050a18;
 --bg-soft:#081126;
 --bg-deep:#03060f;
 --panel:rgba(126,168,255,.055);
 --panel-2:rgba(126,168,255,.095);
 --line:rgba(126,168,255,.16);
 --line-2:rgba(126,196,255,.44);
 --txt:#e9effd;
 --txt-2:#a6b6d8;
 --txt-3:#7182a6;
 --cyan:#38bdf8;
 --indigo:#6366f1;
 --teal:#22d3ee;
 --good:#34e0b4;
 --radius:14px;
 --radius-sm:10px;
 --shadow:0 24px 60px -30px rgba(2,8,26,.95);
 --glow:0 0 0 1px rgba(56,189,248,.4),0 12px 34px -12px rgba(56,189,248,.62);
 --ease:.22s ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
 margin:0;
 background:var(--bg);
 color:var(--txt);
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
 font-size:15px;
 line-height:1.78;
 -webkit-font-smoothing:antialiased;
 overflow-x:hidden;
}
h1,h2,h3,h4,p,figure,ul,ol{margin:0;}
ul,ol{padding-left:0;list-style:none;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;border:0;}
button,input{font:inherit;}
button{cursor:pointer;}
:focus-visible{outline:2px solid rgba(56,189,248,.85);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 22px;}

/* ============ 顶部导航 ============ */
.site-header{
 position:sticky;top:0;z-index:80;
 background:rgba(5,10,24,.74);
 backdrop-filter:blur(16px);
 -webkit-backdrop-filter:blur(16px);
 border-bottom:1px solid var(--line);
 transition:box-shadow var(--ease),background var(--ease);
}
.site-header.is-stuck{
 background:rgba(5,10,24,.94);
 box-shadow:0 18px 44px -26px rgba(0,0,0,.95);
}
.nav-wrap{display:flex;align-items:center;gap:20px;min-height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;letter-spacing:.3px;color:#fff;white-space:nowrap;}
.brand-mark{
 width:30px;height:30px;border-radius:9px;display:grid;place-items:center;
 background:linear-gradient(135deg,#3cc8f8,#5d68f0);
 box-shadow:0 0 0 1px rgba(120,220,255,.45),0 10px 22px -10px rgba(56,189,248,.9);
 color:#03101f;font-size:12px;font-weight:800;letter-spacing:0;
}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-links a{
 display:inline-flex;align-items:center;min-height:38px;padding:8px 13px;border-radius:9px;
 font-size:14px;color:var(--txt-2);transition:color var(--ease),background var(--ease),box-shadow var(--ease);
}
.nav-links a:hover{color:#fff;background:rgba(126,168,255,.1);}
.nav-links a.is-active{
 color:#fff;background:rgba(56,189,248,.14);
 box-shadow:inset 0 0 0 1px rgba(56,189,248,.36);
}
.nav-cta{margin-left:10px;padding:10px 18px;min-height:40px;font-size:13.6px;}
.nav-toggle{
 display:none;margin-left:auto;width:42px;height:42px;border-radius:10px;
 background:rgba(126,168,255,.08);border:1px solid var(--line);color:#d7e6ff;
 align-items:center;justify-content:center;
}
.nav-toggle svg{width:20px;height:20px;}

/* ============ 按钮 ============ */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 min-height:44px;padding:11px 22px;border-radius:10px;border:1px solid transparent;
 font-size:14px;font-weight:600;letter-spacing:.2px;text-align:center;
 transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
}
.btn-primary{
 background:linear-gradient(135deg,#3ecbf9,#4f7cf7);color:#03101f;
 box-shadow:0 0 0 1px rgba(130,225,255,.42),0 16px 34px -16px rgba(56,189,248,.9);
}
.btn-primary:hover{
 transform:translateY(-2px);color:#01101d;
 box-shadow:0 0 0 1px rgba(150,235,255,.66),0 22px 42px -16px rgba(56,189,248,1);
}
.btn-ghost{border-color:var(--line-2);color:#cfe4ff;background:rgba(126,168,255,.05);}
.btn-ghost:hover{background:rgba(126,168,255,.13);color:#fff;transform:translateY(-2px);}
.btn:active{transform:translateY(0);}
.btn-sm{min-height:38px;padding:8px 16px;font-size:13px;border-radius:9px;}

/* ============ 分类页首屏 ============ */
.cat-hero{
 position:relative;overflow:hidden;
 padding:56px 0 62px;
 background:
 radial-gradient(880px 400px at 78% 6%,rgba(56,189,248,.16),transparent 62%),
 linear-gradient(180deg,rgba(5,10,24,.84),rgba(5,10,24,.97)),
 url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
 border-bottom:1px solid rgba(126,168,255,.1);
}
.cat-hero::after{
 content:"";position:absolute;left:-12%;bottom:-46%;width:56%;height:84%;
 background:radial-gradient(closest-side,rgba(99,102,241,.22),transparent 70%);
 pointer-events:none;
}
.cat-hero .container{position:relative;z-index:2;}
.crumb{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--txt-3);margin-bottom:22px;flex-wrap:wrap;}
.crumb a{color:#9cc4ee;}
.crumb a:hover{color:#fff;}
.crumb span.sep{opacity:.5;}
.cat-hero-inner{max-width:820px;}
.cat-hero h1{
 font-size:clamp(26px,3.4vw,40px);line-height:1.28;font-weight:800;letter-spacing:-.6px;color:#f2f8ff;
}
.cat-hero h1 .hl{
 background:linear-gradient(100deg,#5fd8ff,#7d8bff);
 -webkit-background-clip:text;background-clip:text;color:transparent;
}
.cat-lead{margin-top:18px;font-size:15px;line-height:1.88;color:var(--txt-2);max-width:730px;}
.chip-row{margin-top:24px;display:flex;gap:9px;flex-wrap:wrap;}
.tag{
 display:inline-flex;align-items:center;font-size:12.5px;color:#a9c9f2;
 padding:5px 13px;border-radius:999px;background:rgba(126,168,255,.08);border:1px solid var(--line);
}
.tag-solid{background:rgba(56,189,248,.14);border-color:rgba(56,189,248,.36);color:#bfe9ff;}
.cat-hero-actions{margin-top:28px;display:flex;gap:12px;flex-wrap:wrap;}

/* ============ 通用 section ============ */
.section{padding:70px 0;position:relative;}
.section--alt{background:linear-gradient(180deg,rgba(8,17,38,.92),rgba(5,10,24,.99));border-top:1px solid rgba(126,168,255,.09);border-bottom:1px solid rgba(126,168,255,.09);}
.section--deep{background:linear-gradient(180deg,#040814,#071129);}
.section-head{max-width:760px;margin-bottom:34px;}
.section-head h2{font-size:clamp(21px,2.4vw,29px);font-weight:750;letter-spacing:-.3px;line-height:1.36;color:#eef6ff;}
.section-head p{margin-top:13px;font-size:14.5px;line-height:1.86;color:var(--txt-2);}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:1.4px;
 color:#7fd6f5;margin-bottom:12px;
}
.eyebrow::before{content:"";width:24px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--cyan),transparent);}
.section-head--split{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;max-width:none;}

/* ============ 网格 ============ */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}

/* ============ 卡片 ============ */
.info-card{
 position:relative;
 padding:24px 22px;
 border-radius:var(--radius);
 border:1px solid var(--line);
 background:linear-gradient(160deg,rgba(126,168,255,.1),rgba(126,168,255,.028));
 backdrop-filter:blur(10px);
 -webkit-backdrop-filter:blur(10px);
 box-shadow:var(--shadow);
 transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease),background var(--ease);
}
.info-card:hover{
 transform:translateY(-4px);
 border-color:rgba(56,189,248,.5);
 box-shadow:0 26px 52px -30px rgba(56,189,248,.72);
 background:linear-gradient(160deg,rgba(126,168,255,.15),rgba(126,168,255,.05));
}
.card-icon{
 width:42px;height:42px;border-radius:11px;display:grid;place-items:center;margin-bottom:16px;
 background:rgba(56,189,248,.14);border:1px solid rgba(56,189,248,.32);color:#7fd6f5;
}
.card-icon svg{width:21px;height:21px;}
.info-card h3{font-size:16.5px;font-weight:700;color:#eef6ff;line-height:1.45;}
.info-card p{margin-top:10px;font-size:14px;color:var(--txt-2);line-height:1.8;}
.card-tags{margin-top:16px;display:flex;gap:8px;flex-wrap:wrap;}
.card-tags .tag{font-size:12px;padding:3px 11px;}
.card-num{
 position:absolute;top:18px;right:20px;font-size:13px;font-weight:700;color:rgba(126,196,255,.42);
 letter-spacing:1px;
}
.pain-card{
 border-left:3px solid rgba(56,189,248,.5);
 padding:22px 22px 22px 24px;
 border-radius:12px;
 background:rgba(126,168,255,.05);
 border-top:1px solid var(--line);
 border-right:1px solid var(--line);
 border-bottom:1px solid var(--line);
 transition:border-color var(--ease),transform var(--ease),background var(--ease);
}
.pain-card:hover{transform:translateY(-3px);border-left-color:var(--cyan);background:rgba(126,168,255,.09);}
.pain-card h3{font-size:16px;color:#eaf3ff;font-weight:700;}
.pain-card p{margin-top:9px;font-size:14px;color:var(--txt-2);line-height:1.8;}

/* ============ 图文分栏 ============ */
.split{display:grid;grid-template-columns:1.02fr .98fr;gap:46px;align-items:center;}
.split-rev .split-media{order:2;}
.split-media{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);}
.split-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11;}
.split-media::after{
 content:"";position:absolute;inset:0;
 background:linear-gradient(180deg,rgba(5,10,24,.06),rgba(5,10,24,.62));
}
.split-media .media-cap{
 position:absolute;left:18px;right:18px;bottom:16px;z-index:2;
 font-size:12.5px;color:#cfe4ff;letter-spacing:.3px;
}
.split-body h2{font-size:clamp(20px,2.3vw,27px);line-height:1.38;font-weight:750;color:#eef6ff;}
.split-body p{margin-top:14px;font-size:14.5px;color:var(--txt-2);line-height:1.88;}
.dot-list{margin-top:20px;display:grid;gap:12px;}
.dot-list li{position:relative;padding-left:22px;font-size:14px;color:var(--txt-2);line-height:1.78;}
.dot-list li::before{
 content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:3px;
 background:linear-gradient(135deg,var(--cyan),var(--indigo));
 box-shadow:0 0 10px rgba(56,189,248,.7);
}
.dot-list li strong{color:#dfeaff;font-weight:700;}

/* ============ 步骤流 ============ */
.step-flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
.step{
 position:relative;padding:24px 20px 22px;border-radius:12px;
 border:1px solid var(--line);background:rgba(126,168,255,.05);
 transition:transform var(--ease),border-color var(--ease),background var(--ease);
}
.step:hover{transform:translateY(-4px);border-color:rgba(56,189,248,.46);background:rgba(126,168,255,.09);}
.step-i{
 display:inline-flex;align-items:center;justify-content:center;
 width:30px;height:30px;border-radius:9px;margin-bottom:14px;
 font-size:13px;font-weight:800;color:#03101f;
 background:linear-gradient(135deg,#3ecbf9,#5b7bf5);
 box-shadow:0 0 0 1px rgba(130,225,255,.4),0 10px 20px -12px rgba(56,189,248,.9);
}
.step h3{font-size:15.5px;font-weight:700;color:#eaf3ff;}
.step p{margin-top:9px;font-size:13.6px;color:var(--txt-2);line-height:1.8;}

/* ============ 场景横条 ============ */
.scene-list{display:grid;gap:14px;}
.scene{
 display:grid;grid-template-columns:56px 1fr auto;gap:18px;align-items:center;
 padding:20px 22px;border-radius:12px;
 border:1px solid var(--line);
 background:linear-gradient(120deg,rgba(126,168,255,.085),rgba(126,168,255,.02));
 transition:transform var(--ease),border-color var(--ease),background var(--ease);
}
.scene:hover{transform:translateX(4px);border-color:rgba(56,189,248,.46);background:linear-gradient(120deg,rgba(126,168,255,.14),rgba(126,168,255,.04));}
.scene-badge{
 width:56px;height:56px;border-radius:12px;display:grid;place-items:center;
 background:rgba(56,189,248,.12);border:1px solid rgba(56,189,248,.3);
 color:#8fe0ff;font-size:15px;font-weight:800;
}
.scene h3{font-size:15.5px;font-weight:700;color:#eaf3ff;}
.scene p{margin-top:6px;font-size:13.8px;color:var(--txt-2);line-height:1.78;}
.scene .tag{white-space:nowrap;}

/* ============ 数据条 ============ */
.stat-strip{
 display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
 gap:1px;background:rgba(126,168,255,.18);
 border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
}
.stat{padding:26px 20px;background:linear-gradient(180deg,rgba(8,17,38,.98),rgba(5,10,24,.98));text-align:center;}
.stat b{display:block;font-size:26px;font-weight:800;letter-spacing:-.5px;color:#f0f8ff;}
.stat b i{font-style:normal;font-size:14px;color:#8fe0ff;margin-left:2px;}
.stat span{display:block;margin-top:8px;font-size:13px;color:var(--txt-2);}

/* ============ 行动清单 ============ */
.check-list{display:grid;gap:12px;margin-top:22px;}
.check-list li{
 display:flex;align-items:flex-start;gap:12px;
 padding:14px 16px;border-radius:10px;
 background:rgba(126,168,255,.05);border:1px solid var(--line);
 font-size:14px;color:var(--txt-2);line-height:1.75;
 transition:background var(--ease),border-color var(--ease);
}
.check-list li:hover{background:rgba(126,168,255,.1);border-color:rgba(56,189,248,.36);}
.check-list li svg{width:18px;height:18px;flex:none;margin-top:3px;color:var(--good);}
.check-list li strong{color:#e4eeff;font-weight:700;}

/* ============ FAQ ============ */
.faq{display:grid;gap:12px;max-width:900px;}
.faq details{
 border:1px solid var(--line);border-radius:12px;
 background:rgba(126,168,255,.05);
 transition:border-color var(--ease),background var(--ease);
}
.faq details[open]{border-color:rgba(56,189,248,.44);background:rgba(126,168,255,.09);}
.faq summary{
 list-style:none;cursor:pointer;
 display:flex;align-items:center;justify-content:space-between;gap:16px;
 padding:17px 20px;font-size:15px;font-weight:650;color:#eef6ff;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{
 content:"+";flex:none;width:24px;height:24px;border-radius:7px;display:grid;place-items:center;
 font-size:15px;font-weight:700;color:#8fe0ff;
 background:rgba(56,189,248,.14);border:1px solid rgba(56,189,248,.3);
 transition:transform var(--ease),background var(--ease);
}
.faq details[open] summary::after{content:"−";transform:rotate(180deg);}
.faq .faq-body{padding:0 20px 18px;font-size:14px;color:var(--txt-2);line-height:1.86;}

/* ============ CTA ============ */
.cta-band{
 position:relative;overflow:hidden;
 border-radius:18px;padding:48px 44px;
 border:1px solid rgba(56,189,248,.34);
 background:
 radial-gradient(700px 320px at 84% 12%,rgba(56,189,248,.24),transparent 66%),
 linear-gradient(140deg,rgba(12,26,56,.96),rgba(6,12,30,.98)),
 url('/assets/images/backpic/back-5.webp') center/cover no-repeat;
 box-shadow:0 34px 70px -40px rgba(56,189,248,.6);
}
.cta-band h2{font-size:clamp(21px,2.5vw,29px);font-weight:800;color:#f4faff;line-height:1.36;}
.cta-band p{margin-top:14px;font-size:14.5px;color:#b9cdec;line-height:1.86;max-width:660px;}
.cta-band .cta-actions{margin-top:26px;display:flex;gap:12px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{
 padding:56px 0 26px;margin-top:0;
 background:linear-gradient(180deg,#040a18,#02050e);
 border-top:1px solid rgba(126,168,255,.16);
}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px;}
.foot-brand p{margin-top:16px;font-size:13.6px;color:var(--txt-3);line-height:1.8;max-width:360px;}
.foot-title{font-size:14px;font-weight:700;color:#e6f0ff;margin-bottom:16px;letter-spacing:.3px;}
.foot-list{display:grid;gap:10px;}
.foot-list a{font-size:13.6px;color:var(--txt-3);transition:color var(--ease);}
.foot-list a:hover{color:#8fe0ff;}
.copyright{
 margin-top:38px;padding-top:20px;border-top:1px solid rgba(126,168,255,.12);
 display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
 font-size:12.6px;color:var(--txt-3);
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
 .hero-grid{grid-template-columns:1fr;gap:36px;}
 .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
 .step-flow{grid-template-columns:repeat(2,minmax(0,1fr));}
 .split{grid-template-columns:1fr;gap:30px;}
 .split-rev .split-media{order:0;}
 .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr));}
 .foot-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px;}
 .nav-cta{display:none;}
}
@media (max-width:768px){
 .nav-toggle{display:inline-flex;}
 .nav-links{
  position:absolute;top:64px;left:0;right:0;
  display:none;flex-direction:column;align-items:stretch;gap:4px;
  padding:14px 18px 18px;margin-left:0;
  background:rgba(6,12,28,.98);
  border-bottom:1px solid var(--line);
  box-shadow:0 26px 50px -30px rgba(0,0,0,.95);
 }
 .nav-links.is-open{display:flex;}
 .nav-links a{padding:12px 14px;min-height:44px;font-size:14.5px;}
 .section{padding:54px 0;}
 .cat-hero{padding:42px 0 50px;}
 .grid-3,.grid-2{grid-template-columns:1fr;}
 .scene{grid-template-columns:48px 1fr;gap:14px;}
 .scene .tag{grid-column:2;justify-self:start;}
 .scene-badge{width:48px;height:48px;font-size:14px;}
 .cta-band{padding:34px 22px;border-radius:14px;}
 .foot-grid{grid-template-columns:1fr;gap:26px;}
 .copyright{flex-direction:column;gap:8px;}
 .section-head--split{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
 .container{padding:0 16px;}
 .grid-4,.step-flow,.stat-strip{grid-template-columns:1fr;}
 .cat-hero h1{font-size:24px;}
 .info-card{padding:20px 18px;}
 .cta-band .cta-actions .btn,.cat-hero-actions .btn{width:100%;}
 .brand span:last-child{font-size:15px;}
}

/* roulang page: category2 */
:root{
 --bg:#050a18;
 --bg-soft:#081126;
 --bg-deep:#03060f;
 --panel:rgba(126,168,255,.055);
 --panel-2:rgba(126,168,255,.095);
 --line:rgba(126,168,255,.16);
 --line-2:rgba(126,196,255,.44);
 --txt:#e9effd;
 --txt-2:#a6b6d8;
 --txt-3:#7182a6;
 --cyan:#38bdf8;
 --indigo:#6366f1;
 --teal:#22d3ee;
 --good:#34e0b4;
 --radius:14px;
 --radius-sm:10px;
 --shadow:0 24px 60px -30px rgba(2,8,26,.95);
 --glow:0 0 0 1px rgba(56,189,248,.4),0 12px 34px -12px rgba(56,189,248,.62);
 --ease:.22s ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
 margin:0;
 background:var(--bg);
 color:var(--txt);
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
 font-size:15px;
 line-height:1.75;
 -webkit-font-smoothing:antialiased;
 overflow-x:hidden;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
a{color:inherit;text-decoration:none;background:transparent;}
img{max-width:100%;display:block;border:0;}
button,input{font:inherit;}
button{cursor:pointer;}
h1,h2,h3,h4{font-family:inherit;font-weight:750;color:#f0f7ff;letter-spacing:-.2px;}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 22px;}

/* ============ 顶部导航 ============ */
.site-header{
 position:sticky;top:0;z-index:80;
 background:rgba(5,10,24,.74);
 backdrop-filter:blur(16px);
 -webkit-backdrop-filter:blur(16px);
 border-bottom:1px solid var(--line);
 transition:box-shadow var(--ease),background var(--ease);
}
.site-header.is-stuck{
 background:rgba(5,10,24,.92);
 box-shadow:0 18px 44px -26px rgba(0,0,0,.95);
}
.nav-wrap{display:flex;align-items:center;gap:20px;min-height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;letter-spacing:.3px;color:#fff;white-space:nowrap;}
.brand-mark{
 width:30px;height:30px;border-radius:9px;display:grid;place-items:center;
 background:linear-gradient(135deg,#3cc8f8,#5d68f0);
 box-shadow:0 0 0 1px rgba(120,220,255,.45),0 10px 22px -10px rgba(56,189,248,.9);
 color:#03101f;font-size:12px;font-weight:800;letter-spacing:0;flex:none;
}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-links a{
 display:inline-flex;align-items:center;min-height:38px;padding:8px 13px;border-radius:9px;
 font-size:14px;color:var(--txt-2);
 transition:color var(--ease),background var(--ease),box-shadow var(--ease);
}
.nav-links a:hover{color:#fff;background:rgba(126,168,255,.1);}
.nav-links a.is-active{
 color:#fff;background:rgba(56,189,248,.14);
 box-shadow:inset 0 0 0 1px rgba(56,189,248,.36);
}
.nav-links a:focus-visible,.brand:focus-visible,.btn:focus-visible,.nav-toggle:focus-visible{
 outline:2px solid rgba(56,189,248,.85);outline-offset:3px;
}
.nav-cta{margin-left:10px;padding:10px 18px;min-height:40px;font-size:13.6px;}
.nav-toggle{
 display:none;margin-left:auto;width:42px;height:42px;border-radius:10px;
 background:rgba(126,168,255,.08);border:1px solid var(--line);color:#d7e6ff;
 align-items:center;justify-content:center;
}
.nav-toggle svg{width:20px;height:20px;}

/* ============ 按钮 ============ */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 min-height:44px;padding:11px 22px;border-radius:10px;border:1px solid transparent;
 font-size:14px;font-weight:600;letter-spacing:.2px;
 transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
}
.btn-primary{
 background:linear-gradient(135deg,#3ecbf9,#4f7cf7);color:#03101f;
 box-shadow:0 0 0 1px rgba(130,225,255,.42),0 16px 34px -16px rgba(56,189,248,.9);
}
.btn-primary:hover{
 transform:translateY(-2px);color:#01101d;
 box-shadow:0 0 0 1px rgba(150,235,255,.66),0 22px 42px -16px rgba(56,189,248,1);
}
.btn-ghost{
 border-color:var(--line-2);color:#cfe4ff;background:rgba(126,168,255,.05);
}
.btn-ghost:hover{background:rgba(126,168,255,.13);color:#fff;transform:translateY(-2px);}
.btn:active{transform:translateY(0);}
.btn-sm{min-height:38px;padding:8px 16px;font-size:13px;border-radius:9px;}

/* ============ 分类 Hero ============ */
.page-hero{
 position:relative;overflow:hidden;padding:54px 0 62px;
 background:
  radial-gradient(900px 420px at 16% 0%,rgba(56,189,248,.17),transparent 62%),
  radial-gradient(760px 400px at 94% 88%,rgba(99,102,241,.22),transparent 66%),
  linear-gradient(180deg,rgba(5,10,24,.86),rgba(3,6,15,.98)),
  url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
 border-bottom:1px solid rgba(126,168,255,.12);
}
.page-hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;}
.hero-status{
 display:inline-flex;align-items:center;gap:9px;
 padding:7px 15px;border-radius:999px;
 background:rgba(34,211,238,.1);border:1px solid rgba(34,211,238,.34);
 font-size:12.5px;color:#9de8f7;margin-bottom:20px;
}
.hero-status .dot{width:7px;height:7px;border-radius:50%;background:var(--teal);box-shadow:0 0 12px var(--teal);flex:none;}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:1.4px;
 color:#7fd6f5;margin-bottom:12px;
}
.eyebrow::before{content:"";width:24px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--cyan),transparent);}
.page-hero h1{
 font-size:clamp(27px,3.4vw,41px);line-height:1.28;font-weight:800;letter-spacing:-.6px;color:#f2f8ff;
}
.page-hero h1 .hl{
 background:linear-gradient(100deg,#5fd8ff,#7d8bff);
 -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{margin-top:16px;font-size:15px;line-height:1.85;color:var(--txt-2);max-width:620px;}
.hero-actions{margin-top:26px;display:flex;gap:12px;flex-wrap:wrap;}
.hero-tags{margin-top:22px;display:flex;gap:9px;flex-wrap:wrap;}
.tag{
 display:inline-flex;align-items:center;font-size:12.5px;color:#a9c9f2;
 padding:5px 13px;border-radius:999px;background:rgba(126,168,255,.08);border:1px solid var(--line);
}
.tag-solid{background:rgba(56,189,248,.14);border-color:rgba(56,189,248,.36);color:#bfe9ff;}

/* 右侧速查面板 */
.hero-panel{
 border-radius:16px;border:1px solid rgba(126,168,255,.22);
 background:linear-gradient(160deg,rgba(18,32,64,.82),rgba(8,15,34,.9));
 box-shadow:var(--shadow),inset 0 1px 0 rgba(160,210,255,.14);
 backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
 overflow:hidden;
}
.hero-panel img{width:100%;height:186px;object-fit:cover;opacity:.9;}
.panel-inner{padding:18px 20px 22px;}
.panel-title{
 display:flex;align-items:center;justify-content:space-between;gap:10px;
 font-size:13px;letter-spacing:.6px;color:#8fd9f8;margin-bottom:12px;
}
.panel-title span:last-child{font-size:11.5px;color:var(--txt-3);letter-spacing:0;}
.panel-list li{
 display:flex;align-items:center;justify-content:space-between;gap:12px;
 padding:9px 0;border-bottom:1px dashed rgba(126,168,255,.14);
 font-size:13.4px;color:#c8d9f6;
}
.panel-list li:last-child{border-bottom:0;}
.panel-list b{color:#f0f8ff;font-weight:650;}
.panel-list .rank{
 font-size:11.5px;color:#04121f;background:linear-gradient(135deg,#54d5fb,#6c86f8);
 padding:2px 9px;border-radius:999px;font-weight:700;
}

/* ============ 通用 section ============ */
.section{padding:68px 0;position:relative;scroll-margin-top:86px;}
.section--alt{
 background:linear-gradient(180deg,rgba(8,17,38,.92),rgba(5,10,24,.99));
 border-top:1px solid rgba(126,168,255,.09);
 border-bottom:1px solid rgba(126,168,255,.09);
}
.section--deep{background:linear-gradient(180deg,#040814,#061027);}
.section-head{max-width:740px;margin-bottom:34px;}
.section-head h2{font-size:clamp(21px,2.4vw,29px);line-height:1.35;}
.section-head p{margin-top:12px;font-size:14.5px;line-height:1.85;color:var(--txt-2);}
.section-head--split{display:flex;align-items:flex-end;justify-content:space-between;gap:26px;max-width:none;flex-wrap:wrap;}
.section-head--split .head-txt{max-width:720px;}

/* ============ 卡片 ============ */
.card{
 border-radius:var(--radius);border:1px solid var(--line);
 background:var(--panel);
 padding:22px 22px 20px;
 transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease),background var(--ease);
}
.card:hover{
 transform:translateY(-4px);
 border-color:rgba(126,196,255,.42);
 background:var(--panel-2);
 box-shadow:0 26px 48px -30px rgba(0,0,0,.95),0 0 0 1px rgba(56,189,248,.18);
}
.card h3{font-size:16px;line-height:1.5;margin-bottom:8px;}
.card p{font-size:14px;line-height:1.8;color:var(--txt-2);}
.card-ico{
 width:38px;height:38px;border-radius:11px;display:grid;place-items:center;margin-bottom:14px;
 background:rgba(56,189,248,.12);border:1px solid rgba(56,189,248,.3);color:#8ce0ff;flex:none;
}
.card-ico svg{width:19px;height:19px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;}

/* 规则三层 图文 */
.split{display:grid;grid-template-columns:1.02fr .98fr;gap:44px;align-items:center;}
.split-media{position:relative;border-radius:16px;overflow:hidden;border:1px solid rgba(126,168,255,.24);box-shadow:var(--shadow);}
.split-media img{width:100%;height:340px;object-fit:cover;}
.split-media::after{
 content:"";position:absolute;inset:0;
 background:linear-gradient(180deg,rgba(4,10,24,.05),rgba(4,10,24,.62));
}
.media-cap{
 position:absolute;left:18px;bottom:16px;z-index:2;
 font-size:12.5px;color:#cfe6ff;letter-spacing:.4px;
 padding:6px 12px;border-radius:999px;background:rgba(6,14,30,.7);border:1px solid rgba(126,196,255,.3);
}
.layer-list li{
 display:flex;gap:16px;padding:16px 0;border-bottom:1px solid rgba(126,168,255,.12);
}
.layer-list li:last-child{border-bottom:0;padding-bottom:0;}
.layer-num{
 flex:none;width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
 font-size:13px;font-weight:700;color:#04121f;
 background:linear-gradient(135deg,#4fd6fb,#6a7ef6);
 box-shadow:0 10px 22px -12px rgba(56,189,248,.9);
}
.layer-list h3{font-size:15.5px;margin-bottom:6px;}
.layer-list p{font-size:14px;color:var(--txt-2);line-height:1.8;}

/* 牌型速查 */
.type-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
.type-item{
 border-radius:var(--radius-sm);border:1px solid var(--line);background:var(--panel);
 padding:16px 18px;transition:transform var(--ease),border-color var(--ease),background var(--ease);
}
.type-item:hover{transform:translateY(-3px);border-color:rgba(126,196,255,.42);background:var(--panel-2);}
.type-top{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:7px;}
.type-top h3{font-size:15px;margin:0;}
.type-top .badge{
 font-size:11.5px;color:#9be4ff;background:rgba(56,189,248,.13);
 border:1px solid rgba(56,189,248,.3);border-radius:999px;padding:2px 9px;white-space:nowrap;
}
.type-item p{font-size:13.5px;line-height:1.78;color:var(--txt-2);}
.type-note{
 margin-top:22px;padding:15px 18px;border-radius:var(--radius-sm);
 border:1px dashed rgba(126,196,255,.34);background:rgba(34,211,238,.06);
 font-size:13.6px;color:#b9d8f5;line-height:1.8;
}

/* 流程步骤 */
.flow{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;counter-reset:flow;}
.flow-item{
 position:relative;border-radius:var(--radius);border:1px solid var(--line);
 background:linear-gradient(170deg,rgba(20,34,66,.6),rgba(8,16,34,.72));
 padding:26px 22px 22px;
 transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.flow-item:hover{transform:translateY(-4px);border-color:rgba(126,196,255,.44);box-shadow:0 24px 44px -30px rgba(0,0,0,.9);}
.flow-item::before{
 counter-increment:flow;content:"0" counter(flow);
 position:absolute;top:-14px;left:20px;
 font-size:12px;font-weight:800;letter-spacing:1px;color:#04121f;
 padding:3px 11px;border-radius:999px;
 background:linear-gradient(135deg,#54d5fb,#6c86f8);
 box-shadow:0 10px 20px -12px rgba(56,189,248,.95);
}
.flow-item h3{font-size:16px;margin:8px 0 9px;}
.flow-item p{font-size:13.8px;line-height:1.8;color:var(--txt-2);}
.flow-item ul{margin-top:12px;display:grid;gap:7px;}
.flow-item ul li{
 position:relative;padding-left:15px;font-size:13.4px;color:#a9c2e2;line-height:1.7;
}
.flow-item ul li::before{
 content:"";position:absolute;left:0;top:.62em;width:5px;height:5px;border-radius:50%;
 background:var(--cyan);box-shadow:0 0 8px rgba(56,189,248,.9);
}

/* 数据条 */
.stat-strip{
 display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
 border-radius:16px;overflow:hidden;border:1px solid rgba(126,168,255,.2);
 background:rgba(126,168,255,.14);
}
.stat-cell{background:linear-gradient(170deg,rgba(12,24,48,.95),rgba(6,13,30,.98));padding:24px 20px;text-align:center;}
.stat-num{
 font-size:30px;font-weight:800;letter-spacing:-.6px;line-height:1.1;
 background:linear-gradient(100deg,#6fe0ff,#8b98ff);
 -webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-cell span{display:block;margin-top:8px;font-size:13px;color:var(--txt-2);}

/* 人群 + 反馈 */
.aud-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:start;}
.aud-list{display:grid;gap:14px;}
.aud-item{
 display:flex;gap:14px;align-items:flex-start;
 border-radius:var(--radius-sm);border:1px solid var(--line);background:var(--panel);
 padding:16px 18px;transition:border-color var(--ease),background var(--ease),transform var(--ease);
}
.aud-item:hover{border-color:rgba(126,196,255,.4);background:var(--panel-2);transform:translateY(-3px);}
.aud-ico{
 flex:none;width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
 background:rgba(52,224,180,.12);border:1px solid rgba(52,224,180,.32);color:#7cf0d0;
}
.aud-ico svg{width:17px;height:17px;}
.aud-item h3{font-size:15px;margin-bottom:5px;}
.aud-item p{font-size:13.6px;line-height:1.78;color:var(--txt-2);}
.quote-col{display:grid;gap:14px;}
.quote{
 border-radius:var(--radius);border:1px solid rgba(126,196,255,.22);
 background:linear-gradient(165deg,rgba(20,36,68,.66),rgba(7,14,32,.8));
 padding:20px 20px 18px;
}
.quote p{font-size:14px;line-height:1.85;color:#d3e3fa;}
.quote footer{margin-top:14px;display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--txt-3);}
.quote footer .avatar{
 width:26px;height:26px;border-radius:50%;display:grid;place-items:center;font-size:11.5px;font-weight:700;
 color:#04121f;background:linear-gradient(135deg,#54d5fb,#6c86f8);flex:none;
}

/* CMS 列表 */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.post-card{
 display:block;border-radius:var(--radius);border:1px solid var(--line);
 background:var(--panel);padding:20px;
 transition:transform var(--ease),border-color var(--ease),background var(--ease),box-shadow var(--ease);
}
.post-card:hover{
 transform:translateY(-4px);border-color:rgba(126,196,255,.44);
 background:var(--panel-2);box-shadow:0 26px 48px -32px rgba(0,0,0,.95);
}
.post-tag{
 display:inline-flex;font-size:11.5px;color:#9be4ff;background:rgba(56,189,248,.12);
 border:1px solid rgba(56,189,248,.3);border-radius:999px;padding:2px 10px;margin-bottom:12px;
}
.post-card h3{font-size:15.5px;line-height:1.55;margin-bottom:9px;color:#eaf4ff;}
.post-card p{font-size:13.5px;line-height:1.78;color:var(--txt-2);}
.post-meta{
 margin-top:15px;padding-top:13px;border-top:1px solid rgba(126,168,255,.12);
 display:flex;align-items:center;justify-content:space-between;gap:10px;
 font-size:12.3px;color:var(--txt-3);
}
.post-more{color:#83d6f7;}
.empty-note{
 border:1px dashed rgba(126,196,255,.32);border-radius:var(--radius-sm);
 padding:22px;text-align:center;color:var(--txt-2);font-size:14px;background:rgba(126,168,255,.04);
}

/* FAQ */
.faq-wrap{max-width:880px;}
.faq-item{
 border:1px solid var(--line);border-radius:12px;background:var(--panel);
 margin-bottom:12px;overflow:hidden;transition:border-color var(--ease),background var(--ease);
}
.faq-item:hover{border-color:rgba(126,196,255,.36);background:var(--panel-2);}
.faq-item summary{
 list-style:none;cursor:pointer;padding:16px 20px;font-size:15px;font-weight:650;color:#ecf5ff;
 display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
 content:"+";flex:none;width:24px;height:24px;border-radius:7px;display:grid;place-items:center;
 font-size:15px;font-weight:600;color:#8ce0ff;background:rgba(56,189,248,.12);border:1px solid rgba(56,189,248,.3);
 transition:transform var(--ease),background var(--ease);
}
.faq-item[open] summary::after{content:"−";background:rgba(56,189,248,.24);}
.faq-item .faq-body{padding:0 20px 18px;font-size:14px;line-height:1.85;color:var(--txt-2);}
.faq-item summary:focus-visible{outline:2px solid rgba(56,189,248,.85);outline-offset:-2px;}

/* CTA */
.cta-band{
 position:relative;overflow:hidden;border-radius:18px;
 border:1px solid rgba(126,196,255,.28);
 background:
  radial-gradient(600px 260px at 88% 10%,rgba(56,189,248,.2),transparent 65%),
  linear-gradient(160deg,rgba(16,32,64,.9),rgba(6,13,30,.96));
 box-shadow:var(--shadow);
 padding:44px 40px;
 display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(20px,2.3vw,27px);line-height:1.4;}
.cta-band p{margin-top:10px;font-size:14.2px;line-height:1.85;color:var(--txt-2);max-width:620px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* 页脚 */
.site-footer{
 border-top:1px solid rgba(126,168,255,.16);
 background:linear-gradient(180deg,rgba(4,9,20,.96),#03060f);
 padding:52px 0 26px;
}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px;}
.foot-brand p{margin-top:14px;font-size:13.6px;line-height:1.85;color:var(--txt-2);max-width:380px;}
.foot-title{font-size:14px;color:#dceaff;margin-bottom:14px;letter-spacing:.3px;}
.foot-list{display:grid;gap:9px;}
.foot-list a{font-size:13.6px;color:var(--txt-2);transition:color var(--ease),padding-left var(--ease);}
.foot-list a:hover{color:#8ce0ff;padding-left:4px;}
.copyright{
 margin-top:38px;padding-top:20px;border-top:1px solid rgba(126,168,255,.12);
 display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
 font-size:12.6px;color:var(--txt-3);
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
 .hero-grid{grid-template-columns:1fr;gap:32px;}
 .hero-panel img{height:200px;}
 .split{grid-template-columns:1fr;gap:28px;}
 .split-media img{height:280px;}
 .grid-4{grid-template-columns:repeat(2,1fr);}
 .type-grid{grid-template-columns:repeat(2,1fr);}
 .flow{grid-template-columns:1fr;}
 .stat-strip{grid-template-columns:repeat(2,1fr);}
 .aud-grid{grid-template-columns:1fr;}
 .post-grid{grid-template-columns:repeat(2,1fr);}
 .foot-grid{grid-template-columns:1fr 1fr;}
 .foot-brand{grid-column:1 / -1;}
}
@media (max-width:768px){
 .nav-toggle{display:inline-flex;}
 .nav-links{
  position:absolute;top:64px;left:0;right:0;
  flex-direction:column;align-items:stretch;gap:4px;
  margin:0;padding:12px 18px 16px;
  background:rgba(5,10,24,.98);
  border-bottom:1px solid var(--line);
  box-shadow:0 26px 46px -30px rgba(0,0,0,.95);
  display:none;
 }
 .nav-links.is-open{display:flex;}
 .nav-links a{min-height:44px;padding:10px 12px;font-size:14.5px;}
 .nav-cta{display:none;}
 .section{padding:52px 0;}
 .page-hero{padding:40px 0 48px;}
 .grid-3,.grid-4,.type-grid,.post-grid{grid-template-columns:1fr;}
 .stat-strip{grid-template-columns:1fr 1fr;}
 .cta-band{padding:30px 24px;}
 .cta-actions{width:100%;}
 .cta-actions .btn{flex:1 1 auto;}
 .hero-actions .btn{flex:1 1 auto;}
}
@media (max-width:520px){
 .container{padding:0 16px;}
 .page-hero h1{font-size:26px;}
 .section-head h2{font-size:21px;}
 .stat-strip{grid-template-columns:1fr;}
 .stat-num{font-size:26px;}
 .foot-grid{grid-template-columns:1fr;}
 .copyright{flex-direction:column;align-items:flex-start;gap:8px;}
 .hero-panel img{height:160px;}
 .split-media img{height:210px;}
}