/* roulang page: index */
:root{
  --brand-900:#071a2e;
  --brand-800:#0b2742;
  --brand-700:#103457;
  --brand-600:#17507f;
  --brand-500:#1f6fb2;
  --aqua-500:#12a8bf;
  --aqua-400:#28c2d6;
  --aqua-300:#6fe3ec;
  --gold-400:#ffb545;
  --gold-500:#f0991b;
  --ink:#0e2233;
  --ink-soft:#2b4a63;
  --muted:#5f7689;
  --line:#e3edf6;
  --line-soft:#eef4fa;
  --bg:#f5f9fd;
  --bg-tint:#eef6fc;
  --white:#ffffff;
  --radius-xl:26px;
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:10px;
  --shadow-xs:0 2px 8px rgba(11,39,66,.05);
  --shadow-sm:0 6px 18px rgba(11,39,66,.07);
  --shadow-md:0 14px 34px rgba(11,39,66,.11);
  --shadow-lg:0 26px 64px rgba(11,39,66,.18);
  --grad-brand:linear-gradient(135deg,#0b2742 0%,#14456f 52%,#12a8bf 100%);
  --grad-aqua:linear-gradient(135deg,#28c2d6 0%,#1f6fb2 100%);
  --grad-gold:linear-gradient(135deg,#ffc766 0%,#f0991b 100%);
  --ease:.22s cubic-bezier(.4,.2,.2,1);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:15.5px;
  line-height:1.78;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-500);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--aqua-500);}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.4px;line-height:1.32;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
:focus-visible{outline:3px solid rgba(40,194,214,.55);outline-offset:3px;border-radius:6px;}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 22px;}

/* 顶部限时条 */
.ticker{
  background:linear-gradient(90deg,#0b2742,#17507f 45%,#12a8bf 100%);
  color:#dff6fb;font-size:13px;letter-spacing:.3px;
}
.ticker .wrap{display:flex;align-items:center;gap:12px;min-height:40px;flex-wrap:wrap;justify-content:center;}
.ticker .dot{width:7px;height:7px;border-radius:50%;background:var(--gold-400);box-shadow:0 0 0 4px rgba(255,181,69,.18);flex:none;}
.ticker strong{color:#fff;font-weight:700;}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(7,26,46,.94);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:box-shadow var(--ease);
}
.site-header.is-stuck{box-shadow:0 10px 30px rgba(3,15,28,.35);}
.site-header .navbar{padding:0;}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  min-height:66px;gap:18px;width:100%;
}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;letter-spacing:.2px;}
.brand:hover{color:#fff;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;flex:none;
  background:var(--grad-aqua);
  display:grid;place-items:center;color:#04222f;font-size:18px;
  box-shadow:0 6px 16px rgba(40,194,214,.35);
}
.brand-text small{display:block;font-size:11px;font-weight:500;color:rgba(223,246,251,.6);letter-spacing:1.4px;line-height:1.2;}
.navbar-nav.site-nav{display:flex;align-items:center;gap:6px;}
.site-nav .nav-link{
  color:rgba(223,246,251,.78);font-size:14.5px;font-weight:600;
  padding:9px 14px;border-radius:9px;transition:all var(--ease);
}
.site-nav .nav-link:hover{color:#fff;background:rgba(255,255,255,.08);}
.site-nav .nav-link.active{color:#062431;background:var(--grad-aqua);box-shadow:0 6px 18px rgba(40,194,214,.32);}
.nav-cta{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 18px;border-radius:9px;
  background:var(--grad-gold);color:#3a2200;font-weight:800;font-size:14px;
  box-shadow:0 8px 20px rgba(240,153,27,.3);
  transition:all var(--ease);white-space:nowrap;
}
.nav-cta:hover{color:#3a2200;transform:translateY(-1px);box-shadow:0 12px 26px rgba(240,153,27,.4);}
.navbar-toggler{border:1px solid rgba(255,255,255,.22);padding:6px 10px;border-radius:9px;color:#dff6fb;}
.navbar-toggler:focus{box-shadow:none;}
.navbar-toggler i{font-size:19px;color:#dff6fb;}

/* Hero */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(150deg,#061829 0%,#0d3355 48%,#0f5570 100%);
  color:#e9f7fc;padding:58px 0 66px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.28;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(720px 340px at 82% 18%,rgba(40,194,214,.28),transparent 70%),
             linear-gradient(180deg,rgba(6,24,41,.35),rgba(6,24,41,.86));
}
.hero .wrap{position:relative;z-index:2;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(223,246,251,.62);margin-bottom:22px;}
.crumb a{color:rgba(223,246,251,.8);}
.crumb a:hover{color:#fff;}
.crumb i{font-size:11px;}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:44px;align-items:start;}
.hero-tagline{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(40,194,214,.16);border:1px solid rgba(111,227,236,.36);
  color:#9deef7;font-size:12.5px;font-weight:700;letter-spacing:.6px;margin-bottom:18px;
}
.hero h1{
  font-size:clamp(28px,3.3vw,42px);color:#fff;line-height:1.24;margin-bottom:18px;
  letter-spacing:-.6px;
}
.hero h1 em{font-style:normal;color:var(--aqua-300);}
.hero-lead{font-size:15.5px;color:rgba(226,245,251,.86);line-height:1.86;max-width:600px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.hero-tags span{
  padding:6px 13px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.16);color:#d9f1f8;
}

/* 问卷卡 */
.quiz-card{
  background:rgba(255,255,255,.97);
  border-radius:var(--radius-xl);
  padding:26px 24px 22px;
  box-shadow:var(--shadow-lg);
  border:1px solid rgba(255,255,255,.6);
}
.quiz-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;}
.quiz-head h2{font-size:16.5px;color:var(--ink);letter-spacing:-.2px;}
.quiz-badge{
  font-size:11.5px;font-weight:800;letter-spacing:.6px;color:#7a4a00;
  background:var(--grad-gold);padding:4px 10px;border-radius:999px;white-space:nowrap;
}
.quiz-q{margin-bottom:14px;}
.quiz-label{
  display:flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;color:var(--ink-soft);margin-bottom:9px;
}
.quiz-label span{
  display:grid;place-items:center;width:20px;height:20px;border-radius:6px;
  background:var(--bg-tint);color:var(--brand-600);font-size:11px;font-weight:800;flex:none;
}
.quiz-opts{display:flex;flex-wrap:wrap;gap:8px;}
.opt{
  padding:8px 14px;border-radius:9px;font-size:13px;font-weight:600;
  color:var(--ink-soft);background:#f2f8fc;border:1px solid #dceaf4;
  transition:all var(--ease);
}
.opt:hover{border-color:var(--aqua-400);color:var(--brand-600);transform:translateY(-1px);}
.opt.is-active{background:var(--grad-aqua);border-color:transparent;color:#04222f;box-shadow:0 8px 18px rgba(40,194,214,.32);}
.quiz-result{
  margin-top:16px;padding:15px 16px;border-radius:var(--radius-md);
  background:linear-gradient(140deg,#eef8fd,#e3f3fb);
  border:1px dashed #b9dff0;
}
.quiz-result .res-title{font-size:13px;font-weight:800;color:var(--brand-700);margin-bottom:6px;}
.quiz-result .res-body{font-size:13px;color:var(--ink-soft);line-height:1.72;min-height:44px;}
.quiz-actions{display:flex;gap:10px;margin-top:16px;flex-wrap:wrap;}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  padding:11px 22px;border-radius:10px;font-size:14.5px;font-weight:800;
  background:var(--grad-brand);color:#fff;box-shadow:0 10px 24px rgba(16,52,87,.28);
  transition:all var(--ease);
}
.btn-main:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 32px rgba(16,52,87,.36);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  padding:10px 20px;border-radius:10px;font-size:14px;font-weight:700;
  color:var(--brand-600);border:1.5px solid #c6dced;background:#fff;
  transition:all var(--ease);
}
.btn-ghost:hover{color:var(--brand-700);border-color:var(--aqua-400);background:#f4fbfe;transform:translateY(-2px);}

/* 通用 section */
.sec{padding:74px 0;}
.sec--tint{background:linear-gradient(180deg,#eef6fc 0%,#f7fbfe 100%);}
.sec--white{background:#fff;}
.sec--dark{
  background:linear-gradient(150deg,#071a2e 0%,#0f3c62 62%,#12556e 100%);
  color:#dceff7;
}
.sec-head{max-width:760px;margin-bottom:38px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:800;letter-spacing:1.2px;color:var(--aqua-500);
  margin-bottom:12px;text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:2.5px;border-radius:2px;background:var(--grad-aqua);}
.sec-head.center .eyebrow::before{display:none;}
.sec-title{font-size:clamp(22px,2.4vw,30px);margin-bottom:12px;letter-spacing:-.5px;}
.sec-desc{font-size:15px;color:var(--muted);line-height:1.82;}
.sec--dark .sec-title{color:#fff;}
.sec--dark .sec-desc{color:rgba(220,239,247,.78);}
.sec--dark .eyebrow{color:var(--aqua-300);}

/* 数据看板 */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.stat-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px 20px;box-shadow:var(--shadow-sm);
  transition:all var(--ease);position:relative;overflow:hidden;
}
.stat-card::after{
  content:"";position:absolute;right:-26px;top:-26px;width:82px;height:82px;border-radius:50%;
  background:radial-gradient(circle,rgba(40,194,214,.18),transparent 70%);
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c6e6f4;}
.stat-num{font-size:31px;font-weight:900;letter-spacing:-1px;color:var(--brand-700);line-height:1.1;}
.stat-num small{font-size:14px;font-weight:800;color:var(--aqua-500);margin-left:3px;}
.stat-label{font-size:13.5px;font-weight:700;color:var(--ink-soft);margin-top:8px;}
.stat-note{font-size:12.5px;color:var(--muted);margin-top:4px;}

/* 能力卡 */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.feature-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px 24px;box-shadow:var(--shadow-sm);
  transition:all var(--ease);height:100%;
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#bfe3f2;}
.fc-icon{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(140deg,#e6f7fb,#d7eefb);color:var(--brand-600);
  font-size:20px;margin-bottom:16px;
}
.feature-card h3{font-size:16.5px;margin-bottom:9px;}
.feature-card p{font-size:14px;color:var(--muted);line-height:1.78;}

/* 进度条 */
.progress-list{display:grid;gap:16px;}
.progress-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:20px 22px;box-shadow:var(--shadow-xs);
  display:grid;grid-template-columns:1fr auto;gap:8px 18px;align-items:center;
  transition:all var(--ease);
}
.progress-item:hover{border-color:#bfe3f2;box-shadow:var(--shadow-sm);}
.progress-item h3{font-size:15.5px;margin-bottom:4px;}
.progress-item p{font-size:13px;color:var(--muted);}
.progress-val{font-size:15px;font-weight:900;color:var(--brand-600);}
.bar{grid-column:1/-1;height:8px;border-radius:99px;background:#e8f1f8;overflow:hidden;}
.bar i{display:block;height:100%;border-radius:99px;background:var(--grad-aqua);}

/* 路线图 */
.roadmap{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.road-card{
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius-lg);padding:22px 20px;
  transition:all var(--ease);
}
.road-card:hover{background:rgba(255,255,255,.12);border-color:rgba(111,227,236,.5);transform:translateY(-4px);}
.road-stage{
  display:inline-block;font-size:11.5px;font-weight:800;letter-spacing:.8px;
  padding:3px 10px;border-radius:999px;margin-bottom:12px;
  background:rgba(40,194,214,.18);color:var(--aqua-300);border:1px solid rgba(111,227,236,.32);
}
.road-card h3{font-size:15.5px;color:#fff;margin-bottom:8px;}
.road-card p{font-size:13px;color:rgba(220,239,247,.76);line-height:1.75;}

/* 图文分栏 */
.split{display:grid;grid-template-columns:1.02fr .98fr;gap:46px;align-items:center;}
.split-media{position:relative;border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow-md);}
.split-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11;}
.split-media .media-badge{
  position:absolute;left:16px;bottom:16px;
  background:rgba(7,26,46,.82);backdrop-filter:blur(6px);
  color:#dff6fb;font-size:12.5px;font-weight:700;
  padding:8px 14px;border-radius:999px;border:1px solid rgba(255,255,255,.16);
}
.check-list{display:grid;gap:14px;margin-top:22px;}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:14.2px;color:var(--ink-soft);line-height:1.75;
}
.check-list i{
  flex:none;width:22px;height:22px;border-radius:50%;display:grid;place-items:center;
  background:rgba(40,194,214,.16);color:var(--aqua-500);font-size:12px;margin-top:3px;
}
.check-list b{color:var(--ink);font-weight:800;}

/* 分类入口墙 */
.cat-wall{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.cat-card{
  position:relative;display:block;overflow:hidden;
  border-radius:var(--radius-xl);padding:28px 26px;
  background:linear-gradient(150deg,#0b2742,#15496f);
  color:#e5f5fb;box-shadow:var(--shadow-md);
  transition:all var(--ease);
  border:1px solid rgba(255,255,255,.08);
}
.cat-card:nth-child(2){background:linear-gradient(150deg,#0d3b52,#0f6c7f);}
.cat-card:nth-child(3){background:linear-gradient(150deg,#123b5c,#1f6fb2);}
.cat-card::after{
  content:"";position:absolute;right:-40px;bottom:-50px;width:150px;height:150px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.16),transparent 70%);
}
.cat-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);color:#fff;}
.cat-card .cat-idx{font-size:12px;font-weight:800;letter-spacing:1.4px;color:rgba(223,246,251,.6);}
.cat-card h3{font-size:19px;color:#fff;margin:8px 0 10px;}
.cat-card p{font-size:13.5px;color:rgba(223,246,251,.82);line-height:1.75;}
.cat-card .cat-go{
  display:inline-flex;align-items:center;gap:6px;margin-top:18px;
  font-size:13px;font-weight:800;color:var(--aqua-300);
}

/* 对比表 */
.compare-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow-sm);}
.compare-table{width:100%;border-collapse:collapse;font-size:14px;}
.compare-table thead th{
  background:linear-gradient(140deg,#0b2742,#15496f);color:#dff6fb;
  font-size:13.5px;font-weight:800;letter-spacing:.4px;
  padding:16px 20px;text-align:left;
}
.compare-table tbody td{padding:16px 20px;border-top:1px solid var(--line-soft);color:var(--ink-soft);vertical-align:top;}
.compare-table tbody tr:hover{background:#f6fbfe;}
.compare-table .dim{font-weight:800;color:var(--ink);white-space:nowrap;}
.compare-table .better{color:var(--brand-600);font-weight:700;}
.compare-table .worse{color:#8aa0b1;}

/* 时间线 */
.timeline{position:relative;padding-left:34px;}
.timeline::before{
  content:"";position:absolute;left:9px;top:6px;bottom:6px;width:2px;
  background:linear-gradient(180deg,var(--aqua-400),#cfe6f5);
}
.tl-item{position:relative;padding-bottom:26px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-30px;top:6px;width:12px;height:12px;border-radius:50%;
  background:#fff;border:3px solid var(--aqua-500);box-shadow:0 0 0 4px rgba(40,194,214,.14);
}
.tl-year{font-size:12.5px;font-weight:800;letter-spacing:1px;color:var(--aqua-500);margin-bottom:5px;}
.tl-item h3{font-size:15.5px;margin-bottom:6px;}
.tl-item p{font-size:13.8px;color:var(--muted);line-height:1.78;}

/* 专题卡 */
.topic-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-sm);transition:all var(--ease);height:100%;
}
.topic-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#bfe3f2;}
.topic-card img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.topic-body{padding:20px 22px 24px;}
.topic-body h3{font-size:16px;margin-bottom:8px;}
.topic-body p{font-size:13.5px;color:var(--muted);line-height:1.75;}
.topic-meta{display:flex;align-items:center;gap:10px;margin-top:14px;flex-wrap:wrap;}
.pill{
  font-size:12px;font-weight:700;padding:4px 11px;border-radius:999px;
  background:#eef8fd;color:var(--brand-600);border:1px solid #d5ebf7;
}
.pill.gold{background:#fff6e6;color:#a86800;border-color:#f7e2b8;}

/* 更新日志 */
.log-list{display:grid;gap:14px;}
.log-item{
  display:grid;grid-template-columns:112px 1fr;gap:18px;align-items:start;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:18px 22px;box-shadow:var(--shadow-xs);transition:all var(--ease);
}
.log-item:hover{border-color:#bfe3f2;box-shadow:var(--shadow-sm);}
.log-ver{
  font-size:12.5px;font-weight:800;color:#fff;background:var(--grad-brand);
  padding:5px 12px;border-radius:8px;text-align:center;white-space:nowrap;
}
.log-item h3{font-size:15px;margin-bottom:5px;}
.log-item p{font-size:13.5px;color:var(--muted);line-height:1.75;}

/* 资讯列表 */
.news-layout{display:grid;grid-template-columns:1.55fr .95fr;gap:32px;align-items:start;}
.news-list{display:grid;gap:14px;}
.news-item{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:20px 22px;box-shadow:var(--shadow-xs);transition:all var(--ease);
}
.news-item:hover{transform:translateX(4px);border-color:#bfe3f2;box-shadow:var(--shadow-sm);}
.news-item h3{font-size:15.5px;color:var(--ink);margin-bottom:7px;line-height:1.5;}
.news-item:hover h3{color:var(--brand-600);}
.news-item p{font-size:13.5px;color:var(--muted);line-height:1.75;}
.news-meta{display:flex;gap:12px;margin-top:10px;font-size:12.5px;color:#8aa0b1;flex-wrap:wrap;}
.news-meta span{display:inline-flex;align-items:center;gap:5px;}
.news-side{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px 22px;box-shadow:var(--shadow-sm);
}
.news-side h3{font-size:15.5px;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.news-side h3 i{color:var(--aqua-500);}
.side-list{display:grid;gap:12px;}
.side-list a{
  display:block;font-size:13.8px;color:var(--ink-soft);line-height:1.62;
  padding-left:16px;position:relative;transition:all var(--ease);
}
.side-list a::before{
  content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;
  background:#cfe4f2;transition:background var(--ease);
}
.side-list a:hover{color:var(--brand-600);}
.side-list a:hover::before{background:var(--aqua-500);}
.side-more{
  display:inline-flex;align-items:center;gap:6px;margin-top:18px;
  font-size:13.5px;font-weight:800;color:var(--brand-600);
}
.side-more:hover{color:var(--aqua-500);}
.empty-note{
  padding:22px;border-radius:var(--radius-md);background:#f5fafd;
  border:1px dashed #cbe4f2;color:var(--muted);font-size:14px;text-align:center;
}

/* 平台保障 */
.guard-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.guard-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:22px 20px;box-shadow:var(--shadow-xs);transition:all var(--ease);
}
.guard-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm);border-color:#bfe3f2;}
.guard-item i{font-size:22px;color:var(--aqua-500);}
.guard-item h3{font-size:15px;margin:12px 0 7px;}
.guard-item p{font-size:13.2px;color:var(--muted);line-height:1.72;}

/* FAQ */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow-xs);transition:all var(--ease);
}
.faq-item:hover{border-color:#bfe3f2;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:15px;font-weight:800;color:var(--ink);text-align:left;
  transition:color var(--ease);
}
.faq-q:hover{color:var(--brand-600);}
.faq-q i{color:var(--aqua-500);font-size:15px;transition:transform var(--ease);flex:none;}
.faq-q[aria-expanded="true"] i{transform:rotate(180deg);}
.faq-a{padding:0 22px 20px;font-size:14px;color:var(--muted);line-height:1.82;}

/* 订阅 */
.subscribe{
  position:relative;overflow:hidden;border-radius:var(--radius-xl);
  padding:52px 48px;color:#e9f7fc;
  background:linear-gradient(135deg,#071a2e,#12556e 78%);
  box-shadow:var(--shadow-lg);
}
.subscribe::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-7.webp');
  background-size:cover;background-position:center;opacity:.2;
}
.subscribe::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(560px 260px at 88% 12%,rgba(40,194,214,.3),transparent 70%);
}
.subscribe .sub-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;}
.subscribe h2{font-size:clamp(21px,2.3vw,27px);color:#fff;margin-bottom:12px;}
.subscribe p{font-size:14.5px;color:rgba(226,245,251,.82);line-height:1.8;}
.sub-form{display:flex;gap:10px;flex-wrap:wrap;}
.sub-form input{
  flex:1 1 210px;min-height:46px;padding:0 16px;border-radius:10px;
  border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.1);
  color:#fff;font-size:14px;transition:all var(--ease);
}
.sub-form input::placeholder{color:rgba(223,246,251,.5);}
.sub-form input:focus{outline:none;border-color:var(--aqua-300);background:rgba(255,255,255,.16);box-shadow:0 0 0 4px rgba(40,194,214,.18);}
.sub-form button{
  min-height:46px;padding:0 24px;border-radius:10px;font-size:14.5px;font-weight:800;
  background:var(--grad-gold);color:#3a2200;box-shadow:0 10px 24px rgba(240,153,27,.32);
  transition:all var(--ease);
}
.sub-form button:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(240,153,27,.42);}
.sub-note{font-size:12.5px;color:rgba(223,246,251,.55);margin-top:12px;}
.sub-ok{font-size:13.5px;color:var(--aqua-300);font-weight:700;margin-top:10px;display:none;}

/* 页脚 */
.site-footer{
  background:linear-gradient(160deg,#061829,#0b2742);
  color:rgba(220,239,247,.72);padding:56px 0 26px;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.5fr .9fr .9fr;gap:40px;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.1);}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;margin-bottom:14px;}
.footer-brand .brand-mark{background:var(--grad-aqua);}
.footer-about{font-size:13.5px;line-height:1.82;color:rgba(220,239,247,.66);max-width:420px;}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:14px;font-weight:800;letter-spacing:.4px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:13.5px;color:rgba(220,239,247,.68);transition:color var(--ease);}
.footer-col a:hover{color:var(--aqua-300);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding-top:22px;font-size:12.8px;color:rgba(220,239,247,.5);flex-wrap:wrap;
}
.footer-bottom .fs-tags{display:flex;gap:16px;flex-wrap:wrap;}
.footer-bottom .fs-tags span{display:inline-flex;align-items:center;gap:5px;}

/* 响应式 */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .roadmap{grid-template-columns:repeat(2,1fr);}
  .cat-wall{grid-template-columns:1fr;}
  .split{grid-template-columns:1fr;gap:30px;}
  .news-layout{grid-template-columns:1fr;}
  .guard-grid{grid-template-columns:repeat(2,1fr);}
  .subscribe .sub-inner{grid-template-columns:1fr;gap:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .site-nav .nav-link{padding:9px 11px;font-size:13.5px;}
}
@media (max-width:768px){
  .sec{padding:54px 0;}
  .hero{padding:42px 0 52px;}
  .quiz-card{padding:22px 18px 20px;}
  .grid-3{grid-template-columns:1fr;}
  .roadmap{grid-template-columns:1fr;}
  .guard-grid{grid-template-columns:1fr;}
  .log-item{grid-template-columns:1fr;gap:10px;}
  .compare-table{font-size:13px;}
  .compare-table thead th,.compare-table tbody td{padding:12px 14px;}
  .subscribe{padding:36px 24px;}
  .footer-grid{grid-template-columns:1fr;}
  .site-nav{flex-direction:column;align-items:stretch;gap:2px;padding:12px 0 6px;}
  .site-nav .nav-link{display:block;}
  .nav-cta{margin:10px 0 16px;display:inline-flex;}
  .nav-inner{align-items:flex-start;padding:8px 0;}
  .navbar-collapse{width:100%;}
}
@media (max-width:520px){
  .wrap{padding:0 16px;}
  .stats-grid{grid-template-columns:1fr;}
  .opt{padding:7px 11px;font-size:12.5px;}
  .stat-num{font-size:27px;}
  .ticker .wrap{font-size:12px;gap:8px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category1 */
:root{
 --brand-900:#071a2e;
 --brand-800:#0b2742;
 --brand-700:#103457;
 --brand-600:#17507f;
 --brand-500:#1f6fb2;
 --aqua-500:#12a8bf;
 --aqua-400:#28c2d6;
 --aqua-300:#6fe3ec;
 --gold-400:#ffb545;
 --gold-500:#f0991b;
 --ink:#0e2233;
 --ink-soft:#2b4a63;
 --muted:#5f7689;
 --line:#e3edf6;
 --line-soft:#eef4fa;
 --bg:#f5f9fd;
 --bg-tint:#eef6fc;
 --white:#ffffff;
 --radius-xl:26px;
 --radius-lg:20px;
 --radius-md:14px;
 --radius-sm:10px;
 --shadow-xs:0 2px 8px rgba(11,39,66,.05);
 --shadow-sm:0 6px 18px rgba(11,39,66,.07);
 --shadow-md:0 14px 34px rgba(11,39,66,.11);
 --shadow-lg:0 26px 64px rgba(11,39,66,.18);
 --grad-brand:linear-gradient(135deg,#0b2742 0%,#14456f 52%,#12a8bf 100%);
 --grad-aqua:linear-gradient(135deg,#28c2d6 0%,#1f6fb2 100%);
 --grad-gold:linear-gradient(135deg,#ffc766 0%,#f0991b 100%);
 --ease:.22s cubic-bezier(.4,.2,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
 margin:0;
 font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
 font-size:15.5px;line-height:1.78;color:var(--ink);background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-500);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--aqua-500);}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.2px;color:var(--ink);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--aqua-400);outline-offset:3px;border-radius:6px;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}

/* ============ 导航 ============ */
.site-header{
 position:sticky;top:0;z-index:1040;
 background:rgba(7,26,46,.94);
 backdrop-filter:blur(14px);
 border-bottom:1px solid rgba(255,255,255,.08);
 transition:box-shadow var(--ease);
}
.site-header.is-stuck{box-shadow:0 10px 30px rgba(3,15,28,.35);}
.site-header .navbar{padding:0;}
.nav-inner{display:flex;align-items:center;justify-content:space-between;min-height:66px;gap:18px;width:100%;}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;letter-spacing:.2px;}
.brand:hover{color:#fff;}
.brand-mark{
 width:36px;height:36px;border-radius:11px;flex:none;
 background:var(--grad-aqua);display:grid;place-items:center;color:#04222f;font-size:18px;
 box-shadow:0 6px 16px rgba(40,194,214,.35);
}
.brand-text small{display:block;font-size:11px;font-weight:500;color:rgba(223,246,251,.6);letter-spacing:1.4px;line-height:1.2;}
.navbar-nav.site-nav{display:flex;align-items:center;gap:6px;}
.site-nav .nav-link{color:rgba(223,246,251,.78);font-size:14.5px;font-weight:600;padding:9px 14px;border-radius:9px;transition:all var(--ease);}
.site-nav .nav-link:hover{color:#fff;background:rgba(255,255,255,.08);}
.site-nav .nav-link.active{color:#062431;background:var(--grad-aqua);box-shadow:0 6px 18px rgba(40,194,214,.32);}
.nav-cta{
 display:inline-flex;align-items:center;gap:7px;padding:9px 18px;border-radius:9px;
 background:var(--grad-gold);color:#3a2200;font-weight:800;font-size:14px;
 box-shadow:0 8px 20px rgba(240,153,27,.3);transition:all var(--ease);white-space:nowrap;
}
.nav-cta:hover{color:#3a2200;transform:translateY(-1px);box-shadow:0 12px 26px rgba(240,153,27,.4);}
.navbar-toggler{border:1px solid rgba(255,255,255,.22);padding:6px 10px;border-radius:9px;color:#dff6fb;}
.navbar-toggler:focus{box-shadow:none;}
.navbar-toggler i{font-size:19px;color:#dff6fb;}
@media (max-width:991.98px){
 .navbar-collapse{background:rgba(7,26,46,.98);border-radius:14px;margin:10px 0 14px;padding:6px 14px 14px;border:1px solid rgba(255,255,255,.08);}
 .site-nav{flex-direction:column;align-items:stretch;gap:4px;padding:10px 0 4px;}
 .site-nav .nav-link{display:block;}
 .nav-cta{justify-content:center;margin-top:10px;display:flex;}
}

/* ============ Hero ============ */
.hero{
 position:relative;overflow:hidden;color:#e9f7fc;
 background:linear-gradient(150deg,#061829 0%,#0d3355 48%,#0f5570 100%);
 padding:34px 0 66px;
}
.hero::before{
 content:"";position:absolute;inset:0;
 background-image:url('/assets/images/backpic/back-2.webp');
 background-size:cover;background-position:center;opacity:.26;
}
.hero::after{
 content:"";position:absolute;inset:0;
 background:radial-gradient(720px 340px at 84% 16%,rgba(40,194,214,.28),transparent 70%),
 linear-gradient(180deg,rgba(6,24,41,.35),rgba(6,24,41,.88));
}
.hero .wrap{position:relative;z-index:2;}
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:rgba(223,246,251,.7);margin-bottom:26px;}
.crumb a{color:rgba(223,246,251,.86);font-weight:600;}
.crumb a:hover{color:#fff;}
.crumb i{font-size:11px;opacity:.6;}
.crumb .now{color:var(--aqua-300);font-weight:700;}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:44px;align-items:start;}
.hero-tagline{
 display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
 background:rgba(40,194,214,.16);border:1px solid rgba(111,227,236,.36);
 color:#9deef7;font-size:12.5px;font-weight:700;letter-spacing:.6px;margin-bottom:18px;
}
.hero h1{font-size:clamp(28px,3.4vw,44px);color:#fff;line-height:1.24;margin-bottom:18px;letter-spacing:-.6px;}
.hero h1 em{font-style:normal;color:var(--aqua-300);}
.hero-lead{font-size:15.5px;color:rgba(226,245,251,.86);line-height:1.86;max-width:600px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.hero-tags span{
 padding:6px 13px;border-radius:999px;font-size:12.5px;font-weight:600;
 background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.16);color:#d9f1f8;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-panel{
 background:rgba(255,255,255,.97);border-radius:var(--radius-xl);
 padding:24px 22px 20px;box-shadow:var(--shadow-lg);border:1px solid rgba(255,255,255,.6);
}
.panel-title{display:flex;align-items:center;gap:8px;font-size:13.5px;font-weight:800;color:var(--brand-700);margin-bottom:16px;}
.panel-title i{color:var(--aqua-500);}
.panel-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.panel-stat{
 background:var(--bg-tint);border:1px solid var(--line);border-radius:var(--radius-md);
 padding:12px 14px;
}
.panel-stat strong{display:block;font-size:23px;line-height:1.2;color:var(--brand-700);letter-spacing:-.5px;}
.panel-stat span{display:block;font-size:12px;color:var(--muted);margin-top:3px;line-height:1.5;}
.panel-note{
 margin-top:14px;padding-top:14px;border-top:1px dashed var(--line);
 font-size:12.5px;color:var(--ink-soft);line-height:1.7;
}
.panel-note b{color:var(--brand-600);}

/* ============ 按钮 ============ */
.btn-main{
 display:inline-flex;align-items:center;justify-content:center;gap:7px;
 padding:11px 22px;border-radius:10px;font-size:14.5px;font-weight:800;
 background:var(--grad-brand);color:#fff;box-shadow:0 10px 24px rgba(16,52,87,.28);
 transition:all var(--ease);
}
.btn-main:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 32px rgba(16,52,87,.36);}
.btn-main:active{transform:translateY(0);}
.btn-gold{
 display:inline-flex;align-items:center;justify-content:center;gap:7px;
 padding:11px 22px;border-radius:10px;font-size:14.5px;font-weight:800;
 background:var(--grad-gold);color:#3a2200;box-shadow:0 10px 24px rgba(240,153,27,.32);
 transition:all var(--ease);
}
.btn-gold:hover{color:#3a2200;transform:translateY(-2px);box-shadow:0 16px 32px rgba(240,153,27,.42);}
.btn-ghost{
 display:inline-flex;align-items:center;justify-content:center;gap:7px;
 padding:10px 20px;border-radius:10px;font-size:14px;font-weight:700;
 color:var(--brand-600);border:1.5px solid #c6dced;background:#fff;transition:all var(--ease);
}
.btn-ghost:hover{color:var(--brand-700);border-color:var(--aqua-400);background:var(--bg-tint);transform:translateY(-1px);}
.hero .btn-ghost{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.34);color:#e9f7fc;}
.hero .btn-ghost:hover{background:rgba(255,255,255,.2);color:#fff;border-color:rgba(255,255,255,.6);}

/* ============ 区块 ============ */
.sec{padding:66px 0;}
.sec--tint{background:var(--bg-tint);}
.sec--white{background:var(--white);}
.sec--dark{background:var(--brand-800);color:#e6f3fa;}
.sec--dark h2,.sec--dark h3{color:#fff;}
.sec-head{max-width:780px;margin-bottom:34px;}
.kicker{
 display:inline-flex;align-items:center;gap:7px;
 font-size:12.5px;font-weight:800;letter-spacing:1.2px;color:var(--aqua-500);
 text-transform:uppercase;margin-bottom:10px;
}
.kicker::before{content:"";width:26px;height:2px;border-radius:2px;background:var(--grad-aqua);}
.sec-head h2{font-size:clamp(22px,2.5vw,31px);line-height:1.32;}
.sec-head p{margin-top:12px;color:var(--ink-soft);font-size:14.8px;line-height:1.8;}
.sec--dark .sec-head p{color:rgba(214,238,248,.82);}
.sec--dark .kicker{color:var(--aqua-300);}

/* ============ 指标看板 ============ */
.board-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.board-card{
 position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:22px 20px;box-shadow:var(--shadow-sm);transition:all var(--ease);overflow:hidden;
}
.board-card::after{
 content:"";position:absolute;left:0;top:0;height:3px;width:100%;
 background:var(--grad-aqua);opacity:.9;
}
.board-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfe4f4;}
.board-card .ico{
 width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
 background:var(--bg-tint);color:var(--brand-600);font-size:17px;margin-bottom:14px;
}
.board-card strong{display:block;font-size:26px;line-height:1.2;color:var(--brand-700);letter-spacing:-.6px;}
.board-card h3{font-size:14.5px;margin:6px 0 8px;color:var(--ink);}
.board-card p{font-size:13.4px;color:var(--muted);line-height:1.72;}

/* ============ 打法矩阵 ============ */
.matrix-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.matrix-card{
 display:grid;grid-template-columns:132px 1fr;gap:18px;align-items:stretch;
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:18px;box-shadow:var(--shadow-sm);transition:all var(--ease);
}
.matrix-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfe4f4;}
.matrix-card figure{margin:0;border-radius:var(--radius-md);overflow:hidden;background:var(--bg-tint);}
.matrix-card figure img{width:100%;height:100%;min-height:132px;object-fit:cover;transition:transform .35s var(--ease);}
.matrix-card:hover figure img{transform:scale(1.05);}
.matrix-body h3{font-size:17px;margin-bottom:8px;}
.matrix-body p{font-size:13.8px;color:var(--ink-soft);line-height:1.75;}
.tag-row{display:flex;flex-wrap:wrap;gap:7px;margin-top:12px;}
.tag{
 display:inline-flex;align-items:center;gap:5px;
 padding:3px 10px;border-radius:999px;font-size:11.8px;font-weight:700;
 background:var(--bg-tint);color:var(--brand-600);border:1px solid #d9e9f6;
}
.tag--gold{background:#fff5e3;color:#8a5a06;border-color:#f7e0b5;}

/* ============ 场景卡 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.scene-card{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:24px 22px;box-shadow:var(--shadow-sm);transition:all var(--ease);
 display:flex;flex-direction:column;gap:10px;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfe4f4;}
.scene-card .scene-no{
 font-size:12px;font-weight:800;color:var(--aqua-500);letter-spacing:1.4px;
}
.scene-card h3{font-size:16.5px;}
.scene-card p{font-size:13.8px;color:var(--ink-soft);line-height:1.75;}
.scene-card ul{margin-top:auto;padding-top:12px;border-top:1px dashed var(--line);display:grid;gap:7px;}
.scene-card li{font-size:13.2px;color:var(--muted);display:flex;gap:8px;line-height:1.7;}
.scene-card li i{color:var(--aqua-500);font-size:12px;margin-top:5px;flex:none;}

/* ============ 流程 ============ */
.flow-list{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:flow;}
.flow-item{
 position:relative;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
 border-radius:var(--radius-lg);padding:24px 20px 22px;transition:all var(--ease);
}
.flow-item:hover{background:rgba(255,255,255,.1);transform:translateY(-4px);border-color:rgba(111,227,236,.4);}
.flow-item .step{
 width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
 background:var(--grad-aqua);color:#04222f;font-weight:900;font-size:14px;margin-bottom:14px;
}
.flow-item h3{font-size:16px;color:#fff;margin-bottom:8px;}
.flow-item p{font-size:13.4px;color:rgba(214,238,248,.8);line-height:1.75;}

/* ============ 对比 ============ */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;}
.compare-col{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:26px 24px;box-shadow:var(--shadow-sm);transition:all var(--ease);
}
.compare-col:hover{box-shadow:var(--shadow-md);transform:translateY(-3px);}
.compare-col--good{border-color:#bfe6ef;background:linear-gradient(180deg,#f4fdff 0%,#ffffff 62%);}
.compare-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;}
.compare-head h3{font-size:17.5px;}
.badge-soft{
 font-size:11.8px;font-weight:800;padding:4px 11px;border-radius:999px;
 background:#f0f4f8;color:var(--muted);border:1px solid var(--line);
}
.badge-soft--good{background:rgba(40,194,214,.14);color:#0b6b7a;border-color:rgba(40,194,214,.3);}
.compare-col ul{display:grid;gap:11px;}
.compare-col li{display:flex;gap:10px;font-size:13.8px;color:var(--ink-soft);line-height:1.75;}
.compare-col li i{flex:none;margin-top:4px;font-size:13px;}
.compare-col--bad li i{color:#c08575;}
.compare-col--good li i{color:var(--aqua-500);}
.compare-col .concl{
 margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);
 font-size:13.2px;color:var(--muted);line-height:1.75;
}

/* ============ 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.news-card{
 display:flex;flex-direction:column;gap:10px;
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:22px 20px;box-shadow:var(--shadow-sm);transition:all var(--ease);
 color:inherit;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfe4f4;color:inherit;}
.news-cat{
 align-self:flex-start;font-size:11.5px;font-weight:800;letter-spacing:.4px;
 padding:3px 10px;border-radius:999px;background:rgba(31,111,178,.1);color:var(--brand-600);
}
.news-card h3{font-size:15.8px;line-height:1.55;transition:color var(--ease);}
.news-card:hover h3{color:var(--brand-600);}
.news-card p{font-size:13.4px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{
 margin-top:auto;padding-top:12px;border-top:1px dashed var(--line);
 font-size:12.4px;color:var(--muted);display:flex;align-items:center;gap:6px;
}
.news-empty{
 background:#fff;border:1px dashed var(--line);border-radius:var(--radius-md);
 padding:26px;text-align:center;color:var(--muted);font-size:14px;
}

/* ============ 保障 ============ */
.guard-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.guard-card{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:24px 22px;box-shadow:var(--shadow-xs);transition:all var(--ease);
}
.guard-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm);}
.guard-card .ico{
 width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
 background:linear-gradient(135deg,#e7f7fb,#dcecf8);color:var(--brand-600);font-size:19px;margin-bottom:14px;
}
.guard-card h3{font-size:16px;margin-bottom:8px;}
.guard-card p{font-size:13.6px;color:var(--ink-soft);line-height:1.75;}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px;max-width:960px;}
.faq-item{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
 padding:20px 22px;box-shadow:var(--shadow-xs);transition:all var(--ease);
}
.faq-item:hover{border-color:#cfe4f4;box-shadow:var(--shadow-sm);}
.faq-item h3{font-size:15.6px;display:flex;gap:10px;align-items:flex-start;margin-bottom:8px;}
.faq-item h3 i{color:var(--aqua-500);font-size:15px;margin-top:4px;flex:none;}
.faq-item p{font-size:13.8px;color:var(--ink-soft);line-height:1.8;padding-left:25px;}

/* ============ CTA ============ */
.cta-band{
 position:relative;overflow:hidden;border-radius:var(--radius-xl);
 background:var(--grad-brand);color:#eaf8fd;padding:44px 40px;
 box-shadow:var(--shadow-lg);
}
.cta-band::before{
 content:"";position:absolute;inset:0;
 background-image:url('/assets/images/backpic/back-5.webp');
 background-size:cover;background-position:center;opacity:.16;
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;gap:34px;align-items:center;}
.cta-inner h2{color:#fff;font-size:clamp(21px,2.3vw,28px);line-height:1.34;margin-bottom:12px;}
.cta-inner p{font-size:14.4px;color:rgba(226,245,251,.86);line-height:1.8;}
.sub-form{display:flex;gap:10px;background:rgba(255,255,255,.96);padding:8px;border-radius:12px;box-shadow:var(--shadow-md);}
.sub-form input{
 flex:1;min-width:0;border:1px solid var(--line);border-radius:9px;padding:11px 14px;
 font-size:14px;color:var(--ink);background:#fff;
}
.sub-form input:focus{outline:none;border-color:var(--aqua-400);box-shadow:0 0 0 3px rgba(40,194,214,.18);}
.form-tip{font-size:12.6px;color:rgba(226,245,251,.78);margin-top:10px;}
.form-tip b{color:var(--aqua-300);}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-900);color:rgba(214,238,248,.78);padding:52px 0 22px;border-top:1px solid rgba(255,255,255,.08);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:36px;padding-bottom:32px;border-bottom:1px solid rgba(255,255,255,.1);}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:16.5px;margin-bottom:14px;}
.footer-about{font-size:13.6px;line-height:1.85;color:rgba(214,238,248,.7);max-width:520px;}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:14px;letter-spacing:.4px;}
.footer-col ul{display:grid;gap:9px;}
.footer-col a{font-size:13.6px;color:rgba(214,238,248,.74);}
.footer-col a:hover{color:var(--aqua-300);}
.footer-bottom{
 display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
 padding-top:18px;font-size:12.8px;color:rgba(214,238,248,.6);
}
.fs-tags{display:flex;flex-wrap:wrap;gap:14px;}
.fs-tags span{display:inline-flex;align-items:center;gap:6px;font-size:12.4px;}
.fs-tags i{color:var(--aqua-400);}

/* ============ 响应式 ============ */
@media (max-width:1024px){
 .hero-grid{grid-template-columns:1fr;gap:30px;}
 .board-grid{grid-template-columns:repeat(2,1fr);}
 .flow-list{grid-template-columns:repeat(2,1fr);}
 .news-grid{grid-template-columns:repeat(2,1fr);}
 .cta-inner{grid-template-columns:1fr;gap:24px;}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:768px){
 .sec{padding:50px 0;}
 .matrix-grid{grid-template-columns:1fr;}
 .scene-grid{grid-template-columns:1fr;}
 .guard-grid{grid-template-columns:1fr;}
 .compare-grid{grid-template-columns:1fr;}
 .matrix-card{grid-template-columns:106px 1fr;gap:14px;}
 .cta-band{padding:32px 22px;}
 .sub-form{flex-direction:column;}
 .sub-form button{width:100%;}
}
@media (max-width:520px){
 .wrap{padding:0 16px;}
 .board-grid{grid-template-columns:1fr;}
 .flow-list{grid-template-columns:1fr;}
 .news-grid{grid-template-columns:1fr;}
 .footer-grid{grid-template-columns:1fr;}
 .hero{padding:26px 0 48px;}
 .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%;}
 .matrix-card{grid-template-columns:1fr;}
 .matrix-card figure img{min-height:150px;}
 .footer-bottom{flex-direction:column;align-items:flex-start;}
 .brand{font-size:15.5px;}
 .brand-text small{font-size:10px;letter-spacing:1px;}
}

/* roulang page: article */
:root{
 --brand-900:#071a2e;
 --brand-800:#0b2742;
 --brand-700:#103457;
 --brand-600:#17507f;
 --brand-500:#1f6fb2;
 --aqua-500:#12a8bf;
 --aqua-400:#28c2d6;
 --aqua-300:#6fe3ec;
 --gold-400:#ffb545;
 --gold-500:#f0991b;
 --ink:#0e2233;
 --ink-soft:#2b4a63;
 --muted:#5f7689;
 --line:#e3edf6;
 --line-soft:#eef4fa;
 --bg:#f5f9fd;
 --bg-tint:#eef6fc;
 --white:#ffffff;
 --radius-xl:26px;
 --radius-lg:20px;
 --radius-md:14px;
 --radius-sm:10px;
 --shadow-xs:0 2px 8px rgba(11,39,66,.05);
 --shadow-sm:0 6px 18px rgba(11,39,66,.07);
 --shadow-md:0 14px 34px rgba(11,39,66,.11);
 --shadow-lg:0 26px 64px rgba(11,39,66,.18);
 --grad-brand:linear-gradient(135deg,#0b2742 0%,#14456f 52%,#12a8bf 100%);
 --grad-aqua:linear-gradient(135deg,#28c2d6 0%,#1f6fb2 100%);
 --grad-gold:linear-gradient(135deg,#ffc766 0%,#f0991b 100%);
 --ease:.22s cubic-bezier(.4,.2,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
 margin:0;
 font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
 font-size:15.5px;line-height:1.78;color:var(--ink);background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-500);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--aqua-500);}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--aqua-500);outline-offset:3px;border-radius:6px;}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.32;letter-spacing:-.3px;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
.wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 20px;}
/* 顶部导航 */
.site-header{
 position:sticky;top:0;z-index:1040;
 background:rgba(7,26,46,.94);
 backdrop-filter:blur(14px);
 border-bottom:1px solid rgba(255,255,255,.08);
 transition:box-shadow var(--ease);
}
.site-header.is-stuck{box-shadow:0 10px 30px rgba(3,15,28,.35);}
.site-header .navbar{padding:0;}
.nav-inner{
 display:flex;align-items:center;justify-content:space-between;
 min-height:66px;gap:16px;width:100%;flex-wrap:wrap;
}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;letter-spacing:.2px;}
.brand:hover{color:#fff;}
.brand-mark{
 width:36px;height:36px;border-radius:11px;flex:none;
 background:var(--grad-aqua);display:grid;place-items:center;color:#04222f;font-size:18px;
 box-shadow:0 6px 16px rgba(40,194,214,.35);
}
.brand-text small{display:block;font-size:11px;font-weight:500;color:rgba(223,246,251,.6);letter-spacing:1.4px;line-height:1.2;}
.navbar-nav.site-nav{display:flex;align-items:center;gap:6px;}
.site-nav .nav-link{
 color:rgba(223,246,251,.78);font-size:14.5px;font-weight:600;
 padding:9px 14px;border-radius:9px;transition:all var(--ease);
}
.site-nav .nav-link:hover{color:#fff;background:rgba(255,255,255,.08);}
.site-nav .nav-link.active{color:#062431;background:var(--grad-aqua);box-shadow:0 6px 18px rgba(40,194,214,.32);}
.nav-cta{
 display:inline-flex;align-items:center;gap:7px;
 padding:9px 18px;border-radius:9px;
 background:var(--grad-gold);color:#3a2200;font-weight:800;font-size:14px;
 box-shadow:0 8px 20px rgba(240,153,27,.3);
 transition:all var(--ease);white-space:nowrap;
}
.nav-cta:hover{color:#3a2200;transform:translateY(-1px);box-shadow:0 12px 26px rgba(240,153,27,.4);}
.navbar-toggler{border:1px solid rgba(255,255,255,.22);padding:6px 10px;border-radius:9px;color:#dff6fb;}
.navbar-toggler:focus{box-shadow:none;}
.navbar-toggler i{font-size:19px;color:#dff6fb;}
@media (max-width:991.98px){
 #mainNav{flex-basis:100%;margin-top:10px;padding-top:12px;border-top:1px solid rgba(255,255,255,.1);}
 .navbar-nav.site-nav{flex-direction:column;align-items:stretch !important;gap:4px;width:100%;}
 .site-nav .nav-link{display:block;}
 .nav-cta{margin:10px 0 14px;justify-content:center;}
}
/* 面包屑 */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line);padding:12px 0;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);}
.crumb a{color:var(--brand-600);font-weight:600;}
.crumb a:hover{color:var(--aqua-500);}
.crumb .sep{color:#b9cbdb;}
.crumb .cur{color:var(--ink-soft);font-weight:600;max-width:62vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
/* 文章首屏 */
.article-hero{
 position:relative;overflow:hidden;color:#e9f7fc;
 background:linear-gradient(150deg,#061829 0%,#0d3355 52%,#0f5570 100%);
 padding:46px 0 54px;
}
.article-hero::before{
 content:"";position:absolute;inset:0;
 background-image:url('/assets/images/backpic/back-2.webp');
 background-size:cover;background-position:center;opacity:.26;
}
.article-hero::after{
 content:"";position:absolute;inset:0;
 background:radial-gradient(680px 320px at 84% 14%,rgba(40,194,214,.28),transparent 70%),
 linear-gradient(180deg,rgba(6,24,41,.4),rgba(6,24,41,.88));
}
.article-hero .wrap{position:relative;z-index:2;}
.article-hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:40px;align-items:start;}
.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:16px;font-size:13px;color:rgba(226,245,251,.74);}
.post-meta .pill{
 padding:4px 12px;border-radius:999px;font-size:12.5px;font-weight:700;
 background:rgba(40,194,214,.18);border:1px solid rgba(111,227,236,.34);color:#9deef7;
}
.post-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(226,245,251,.4);}
.article-hero h1{
 font-size:clamp(25px,3vw,38px);color:#fff;line-height:1.28;margin-bottom:16px;letter-spacing:-.6px;
}
.article-hero h1 em{font-style:normal;color:var(--aqua-300);}
.hero-lead{font-size:15.5px;color:rgba(226,245,251,.86);line-height:1.85;max-width:620px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.hero-tags span{
 padding:6px 13px;border-radius:999px;font-size:12.5px;font-weight:600;
 background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.16);color:#d9f1f8;
}
.hero-figure{
 background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);
 border-radius:var(--radius-xl);padding:14px;box-shadow:var(--shadow-lg);backdrop-filter:blur(6px);
}
.hero-figure img{border-radius:var(--radius-lg);width:100%;aspect-ratio:16/10;object-fit:cover;}
.fig-note{display:flex;gap:8px;align-items:flex-start;margin-top:12px;padding:0 4px 4px;font-size:12.5px;color:rgba(226,245,251,.78);line-height:1.65;}
.fig-note i{color:var(--aqua-300);font-size:15px;line-height:1.5;}
/* 板块 */
.section{padding:60px 0;position:relative;}
.section.tint{background:var(--bg-tint);}
.section.dark{background:var(--grad-brand);color:#e6f4fa;}
.section-head{max-width:760px;margin-bottom:34px;}
.sec-eyebrow{
 display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:800;
 letter-spacing:1.2px;color:var(--aqua-500);margin-bottom:10px;
}
.sec-eyebrow::before{content:"";width:26px;height:3px;border-radius:2px;background:var(--grad-aqua);}
.sec-title{font-size:clamp(21px,2.3vw,28px);font-weight:800;color:var(--brand-800);}
.sec-sub{margin-top:10px;color:var(--muted);font-size:14.5px;}
.section.dark .sec-title{color:#fff;}
.section.dark .sec-sub{color:rgba(226,245,251,.78);}
.section.dark .sec-eyebrow{color:var(--aqua-300);}
/* 网格 */
.grid{display:grid;gap:22px;}
.grid-2{grid-template-columns:repeat(2,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}
/* 卡片 */
.card{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:24px;box-shadow:var(--shadow-xs);
 transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfe3f2;}
.card-icon{
 width:44px;height:44px;border-radius:13px;display:grid;place-items:center;
 background:rgba(40,194,214,.12);color:var(--brand-600);font-size:20px;margin-bottom:14px;
}
.card h3{font-size:17px;font-weight:800;color:var(--brand-800);margin-bottom:8px;}
.card p{font-size:14px;color:var(--ink-soft);line-height:1.75;}
.tag{
 display:inline-block;padding:4px 11px;border-radius:999px;font-size:12px;font-weight:700;
 background:var(--bg-tint);color:var(--brand-600);border:1px solid var(--line);
}
.card-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
/* 指标 */
.metric{
 position:relative;overflow:hidden;background:#fff;border:1px solid var(--line);
 border-radius:var(--radius-lg);padding:22px;box-shadow:var(--shadow-xs);
 transition:transform var(--ease),box-shadow var(--ease);
}
.metric:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);}
.metric::after{
 content:"";position:absolute;right:-34px;top:-34px;width:100px;height:100px;
 border-radius:50%;background:rgba(40,194,214,.1);
}
.metric-num{font-size:31px;font-weight:900;color:var(--brand-700);letter-spacing:-1px;line-height:1.1;}
.metric-num small{font-size:14px;font-weight:800;color:var(--aqua-500);margin-left:4px;letter-spacing:0;}
.metric-label{margin-top:8px;font-size:13.5px;font-weight:800;color:var(--ink-soft);}
.metric-note{margin-top:6px;font-size:12.5px;color:var(--muted);line-height:1.62;}
/* 文章主体 */
.article-wrap{max-width:920px;margin:0 auto;}
.article-paper{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-xl);
 padding:38px 42px;box-shadow:var(--shadow-sm);
}
.article-body{font-size:15.5px;line-height:1.9;color:var(--ink-soft);}
.article-body h2{
 font-size:21px;font-weight:800;color:var(--brand-800);line-height:1.45;
 margin:34px 0 14px;padding-left:14px;border-left:4px solid var(--aqua-400);
}
.article-body h3{font-size:17.5px;font-weight:800;color:var(--brand-700);margin:26px 0 10px;}
.article-body h4{font-size:16px;font-weight:800;color:var(--brand-700);margin:20px 0 8px;}
.article-body p{margin:0 0 16px;}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:1.4em;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:8px;}
.article-body img{border-radius:var(--radius-md);margin:18px 0;box-shadow:var(--shadow-sm);height:auto;}
.article-body blockquote{
 margin:20px 0;padding:16px 20px;background:var(--bg-tint);
 border-left:4px solid var(--aqua-500);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--ink-soft);
}
.article-body table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top;}
.article-body th{background:var(--bg-tint);color:var(--brand-700);font-weight:800;}
.article-body a{color:var(--brand-500);text-decoration:underline;text-underline-offset:3px;}
.article-body strong{color:var(--brand-700);}
.article-empty{text-align:center;padding:42px 12px;}
.article-empty i{font-size:38px;color:var(--aqua-500);}
.article-empty h2{font-size:22px;font-weight:800;color:var(--brand-800);margin:14px 0 10px;}
.article-empty p{color:var(--muted);font-size:14.5px;max-width:520px;margin:0 auto 22px;}
/* 对比表 */
.compare-wrap{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 box-shadow:var(--shadow-sm);overflow:hidden;
}
.compare{width:100%;border-collapse:collapse;font-size:14px;}
.compare thead th{
 background:var(--brand-800);color:#dff6fb;font-weight:800;
 padding:14px 18px;text-align:left;font-size:13.5px;letter-spacing:.3px;
}
.compare tbody td{padding:14px 18px;border-top:1px solid var(--line);color:var(--ink-soft);}
.compare tbody tr:nth-child(even){background:#fafdff;}
.compare .good{color:#0f8f7a;font-weight:800;}
.compare .bad{color:#b4643a;font-weight:700;}
/* 时间线 */
.timeline{position:relative;padding-left:26px;}
.timeline::before{
 content:"";position:absolute;left:8px;top:8px;bottom:10px;width:2px;
 background:linear-gradient(180deg,var(--aqua-400),rgba(40,194,214,.14));
}
.tl-item{position:relative;padding-bottom:26px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
 content:"";position:absolute;left:-24px;top:7px;width:12px;height:12px;border-radius:50%;
 background:#fff;border:3px solid var(--aqua-500);
}
.tl-item h3{font-size:16px;font-weight:800;color:var(--brand-800);margin-bottom:5px;}
.tl-item p{font-size:14px;color:var(--ink-soft);line-height:1.75;}
.tl-item .tl-tag{font-size:12px;font-weight:800;color:var(--aqua-500);letter-spacing:.6px;}
/* 频道矩阵 */
.channel{
 display:flex;gap:16px;align-items:flex-start;background:#fff;border:1px solid var(--line);
 border-radius:var(--radius-lg);padding:22px;box-shadow:var(--shadow-xs);
 transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.channel:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfe3f2;}
.channel-num{
 width:34px;height:34px;flex:none;border-radius:11px;display:grid;place-items:center;
 background:var(--grad-aqua);color:#04222f;font-size:13px;font-weight:900;
 box-shadow:0 6px 14px rgba(40,194,214,.28);
}
.channel h3{font-size:16.5px;font-weight:800;color:var(--brand-800);margin-bottom:6px;}
.channel p{font-size:13.5px;color:var(--muted);line-height:1.72;margin-bottom:10px;}
.channel .go{font-size:13px;font-weight:800;color:var(--brand-600);display:inline-flex;align-items:center;gap:5px;}
.channel:hover .go{color:var(--aqua-500);}
/* 保障列表 */
.assure-item{display:flex;gap:14px;align-items:flex-start;padding:16px 0;border-bottom:1px dashed var(--line);}
.assure-item:last-child{border-bottom:none;padding-bottom:0;}
.assure-item i{font-size:20px;color:var(--aqua-500);line-height:1.4;}
.assure-item h3{font-size:15.5px;font-weight:800;color:var(--brand-800);margin-bottom:4px;}
.assure-item p{font-size:13.8px;color:var(--ink-soft);line-height:1.72;}
.assure-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px 28px;box-shadow:var(--shadow-xs);}
.assure-figure{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md);border:1px solid var(--line);}
.assure-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
/* FAQ */
.faq-item{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
 margin-bottom:12px;box-shadow:var(--shadow-xs);overflow:hidden;transition:border-color var(--ease),box-shadow var(--ease);
}
.faq-item[open]{border-color:#cfe3f2;box-shadow:var(--shadow-sm);}
.faq-item summary{
 list-style:none;cursor:pointer;position:relative;
 padding:16px 52px 16px 20px;font-weight:800;font-size:15px;color:var(--brand-800);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
 content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
 font-size:20px;font-weight:700;color:var(--aqua-500);line-height:1;
}
.faq-item[open] summary::after{content:"–";}
.faq-body{padding:0 20px 18px;font-size:14px;color:var(--ink-soft);line-height:1.8;}
/* 订阅 */
.subscribe-card{
 position:relative;overflow:hidden;background:var(--grad-brand);
 border-radius:var(--radius-xl);padding:44px;color:#e9f7fc;box-shadow:var(--shadow-lg);
}
.subscribe-card::before{
 content:"";position:absolute;inset:0;
 background-image:url('/assets/images/backpic/back-3.webp');
 background-size:cover;background-position:center;opacity:.16;
}
.subscribe-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.08fr .92fr;gap:34px;align-items:center;}
.subscribe-inner h2{font-size:clamp(21px,2.3vw,27px);color:#fff;font-weight:800;margin-bottom:10px;}
.subscribe-inner p{font-size:14.5px;color:rgba(226,245,251,.82);line-height:1.8;}
.sub-form{display:flex;gap:10px;flex-wrap:wrap;}
.sub-form input{
 flex:1 1 220px;min-height:46px;padding:0 16px;border-radius:10px;
 border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.13);
 color:#fff;font-size:14px;transition:all var(--ease);
}
.sub-form input::placeholder{color:rgba(255,255,255,.62);}
.sub-form input:focus{outline:2px solid var(--aqua-300);outline-offset:2px;background:rgba(255,255,255,.2);}
.sub-tip{margin-top:12px;font-size:13px;color:var(--aqua-300);min-height:20px;}
/* 按钮 */
.btn-main{
 display:inline-flex;align-items:center;justify-content:center;gap:7px;
 padding:11px 22px;border-radius:10px;font-size:14.5px;font-weight:800;
 background:var(--grad-brand);color:#fff;box-shadow:0 10px 24px rgba(16,52,87,.28);
 transition:all var(--ease);
}
.btn-main:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 32px rgba(16,52,87,.36);}
.btn-gold{
 display:inline-flex;align-items:center;justify-content:center;gap:7px;
 padding:11px 22px;border-radius:10px;font-size:14.5px;font-weight:800;
 background:var(--grad-gold);color:#3a2200;box-shadow:0 10px 24px rgba(240,153,27,.32);
 transition:all var(--ease);
}
.btn-gold:hover{color:#3a2200;transform:translateY(-2px);box-shadow:0 16px 32px rgba(240,153,27,.42);}
.btn-ghost{
 display:inline-flex;align-items:center;justify-content:center;gap:7px;
 padding:10px 20px;border-radius:10px;font-size:14px;font-weight:700;
 color:var(--brand-600);border:1.5px solid #c6dced;background:#fff;transition:all var(--ease);
}
.btn-ghost:hover{color:var(--brand-700);border-color:var(--aqua-400);transform:translateY(-2px);box-shadow:var(--shadow-sm);}
/* 页脚 */
.site-footer{background:var(--brand-900);color:rgba(223,246,251,.72);padding:56px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:#fff;margin-bottom:14px;}
.footer-about{font-size:13.5px;line-height:1.85;color:rgba(223,246,251,.62);}
.footer-col h4{font-size:14px;color:#fff;font-weight:800;margin-bottom:14px;}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:9px;}
.footer-col a{font-size:13.5px;color:rgba(223,246,251,.68);}
.footer-col a:hover{color:var(--aqua-300);}
.footer-bottom{
 border-top:1px solid rgba(255,255,255,.1);margin-top:36px;padding-top:20px;
 display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
 font-size:12.5px;color:rgba(223,246,251,.55);
}
.fs-tags{display:flex;gap:18px;flex-wrap:wrap;}
.fs-tags span{display:inline-flex;align-items:center;gap:6px;}
.fs-tags i{color:var(--aqua-400);}
/* 响应式 */
@media (max-width:1024px){
 .grid-4{grid-template-columns:repeat(2,1fr);}
 .grid-3{grid-template-columns:repeat(2,1fr);}
 .article-hero-grid,.subscribe-inner{grid-template-columns:1fr;}
 .footer-grid{grid-template-columns:1fr 1fr;}
 .hero-figure{order:-1;}
}
@media (max-width:768px){
 .section{padding:44px 0;}
 .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
 .footer-grid{grid-template-columns:1fr;}
 .article-hero{padding:32px 0 40px;}
 .article-paper{padding:26px 20px;border-radius:var(--radius-lg);}
 .subscribe-card{padding:28px 22px;border-radius:var(--radius-lg);}
 .compare thead th,.compare tbody td{padding:11px 12px;font-size:13px;}
 .btn-main,.btn-gold,.btn-ghost{width:100%;min-height:44px;}
 .crumb .cur{max-width:48vw;}
}
@media (max-width:520px){
 body{font-size:15px;}
 .wrap{padding:0 16px;}
 .card,.metric{padding:18px;}
 .metric-num{font-size:26px;}
 .article-body{font-size:15px;}
 .hero-tags span{font-size:12px;}
 .fs-tags{gap:12px;font-size:12px;}
}

/* roulang page: category2 */
:root{
 --brand-900:#071a2e;
 --brand-800:#0b2742;
 --brand-700:#103457;
 --brand-600:#17507f;
 --brand-500:#1f6fb2;
 --aqua-500:#12a8bf;
 --aqua-400:#28c2d6;
 --aqua-300:#6fe3ec;
 --gold-400:#ffb545;
 --gold-500:#f0991b;
 --ink:#0e2233;
 --ink-soft:#2b4a63;
 --muted:#5f7689;
 --line:#e3edf6;
 --line-soft:#eef4fa;
 --bg:#f5f9fd;
 --bg-tint:#eef6fc;
 --white:#ffffff;
 --radius-xl:26px;
 --radius-lg:20px;
 --radius-md:14px;
 --radius-sm:10px;
 --shadow-xs:0 2px 8px rgba(11,39,66,.05);
 --shadow-sm:0 6px 18px rgba(11,39,66,.07);
 --shadow-md:0 14px 34px rgba(11,39,66,.11);
 --shadow-lg:0 26px 64px rgba(11,39,66,.18);
 --grad-brand:linear-gradient(135deg,#0b2742 0%,#14456f 52%,#12a8bf 100%);
 --grad-aqua:linear-gradient(135deg,#28c2d6 0%,#1f6fb2 100%);
 --grad-gold:linear-gradient(135deg,#ffc766 0%,#f0991b 100%);
 --ease:.22s cubic-bezier(.4,.2,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
 margin:0;
 font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
 font-size:15.5px;line-height:1.78;color:var(--ink);background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-500);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--aqua-500);}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:3px solid rgba(40,194,214,.55);outline-offset:2px;border-radius:6px;}
.wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 22px;}

/* 顶部导航 */
.site-header{
 position:sticky;top:0;z-index:1040;
 background:rgba(7,26,46,.94);
 backdrop-filter:blur(14px);
 border-bottom:1px solid rgba(255,255,255,.08);
 transition:box-shadow var(--ease);
}
.site-header.is-stuck{box-shadow:0 10px 30px rgba(3,15,28,.35);}
.site-header .navbar{padding:0;}
.nav-inner{display:flex;align-items:center;justify-content:space-between;min-height:66px;gap:18px;width:100%;}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;letter-spacing:.2px;}
.brand:hover{color:#fff;}
.brand-mark{
 width:36px;height:36px;border-radius:11px;flex:none;
 background:var(--grad-aqua);display:grid;place-items:center;
 color:#04222f;font-size:18px;box-shadow:0 6px 16px rgba(40,194,214,.35);
}
.brand-text small{display:block;font-size:11px;font-weight:500;color:rgba(223,246,251,.6);letter-spacing:1.4px;line-height:1.2;}
.navbar-nav.site-nav{display:flex;align-items:center;gap:6px;}
.site-nav .nav-link{color:rgba(223,246,251,.78);font-size:14.5px;font-weight:600;padding:9px 14px;border-radius:9px;transition:all var(--ease);}
.site-nav .nav-link:hover{color:#fff;background:rgba(255,255,255,.08);}
.site-nav .nav-link.active{color:#062431;background:var(--grad-aqua);box-shadow:0 6px 18px rgba(40,194,214,.32);}
.nav-cta{
 display:inline-flex;align-items:center;gap:7px;padding:9px 18px;border-radius:9px;
 background:var(--grad-gold);color:#3a2200;font-weight:800;font-size:14px;
 box-shadow:0 8px 20px rgba(240,153,27,.3);transition:all var(--ease);white-space:nowrap;
}
.nav-cta:hover{color:#3a2200;transform:translateY(-1px);box-shadow:0 12px 26px rgba(240,153,27,.4);}
.navbar-toggler{border:1px solid rgba(255,255,255,.22);padding:6px 10px;border-radius:9px;color:#dff6fb;}
.navbar-toggler:focus{box-shadow:none;}
.navbar-toggler i{font-size:19px;color:#dff6fb;}

/* 面包屑 */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line);}
.crumb-bar .wrap{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:48px;flex-wrap:wrap;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);}
.crumb a{color:var(--brand-600);font-weight:600;}
.crumb a:hover{color:var(--aqua-500);}
.crumb .sep{color:#b9cddd;}
.crumb .now{color:var(--ink-soft);font-weight:700;}
.crumb-back{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:700;color:var(--brand-600);}
.crumb-back:hover{color:var(--aqua-500);}

/* 首屏矮横幅 */
.page-hero{position:relative;overflow:hidden;padding:40px 0 48px;border-bottom:1px solid var(--line);background:linear-gradient(155deg,#f2f9fd 0%,#e6f3fb 56%,#dcf0f7 100%);}
.page-hero::before{
 content:"";position:absolute;inset:0;
 background-image:url('/assets/images/backpic/back-3.webp');
 background-size:cover;background-position:center;opacity:.13;
}
.page-hero::after{
 content:"";position:absolute;inset:0;
 background:radial-gradient(680px 300px at 88% 0%,rgba(40,194,214,.22),transparent 72%),
 linear-gradient(180deg,rgba(255,255,255,.55),rgba(245,249,253,.92));
}
.page-hero .wrap{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;}
.hero-eyebrow{
 display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
 background:rgba(18,168,191,.12);border:1px solid rgba(18,168,191,.28);
 color:var(--brand-600);font-size:12.5px;font-weight:800;letter-spacing:.6px;margin-bottom:16px;
}
.hero-eyebrow i{color:var(--aqua-500);}
.page-hero h1{
 font-size:clamp(26px,3.1vw,38px);line-height:1.26;letter-spacing:-.6px;
 color:var(--brand-900);font-weight:800;margin-bottom:14px;
}
.page-hero h1 em{font-style:normal;color:var(--brand-500);}
.hero-lead{font-size:15px;color:var(--ink-soft);line-height:1.88;max-width:600px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:22px;}
.hero-tags span{
 padding:6px 13px;border-radius:999px;font-size:12.5px;font-weight:700;
 background:#fff;border:1px solid var(--line);color:var(--brand-600);box-shadow:var(--shadow-xs);
}
.hero-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius-xl);box-shadow:var(--shadow-md);padding:22px;display:grid;gap:11px;}
.panel-head{display:flex;align-items:center;justify-content:space-between;font-size:12.5px;font-weight:800;color:var(--muted);letter-spacing:.8px;padding:0 4px 4px;}
.panel-head i{color:var(--aqua-500);}
.badge-row{display:flex;align-items:center;gap:13px;padding:12px 14px;border-radius:var(--radius-md);background:var(--bg-tint);border:1px solid var(--line-soft);transition:all var(--ease);}
.badge-row:hover{transform:translateY(-2px);border-color:#cbe6f5;box-shadow:var(--shadow-xs);}
.badge-row i{font-size:19px;color:var(--brand-500);flex:none;}
.badge-row b{display:block;font-size:17px;color:var(--brand-800);line-height:1.25;font-weight:800;}
.badge-row span{font-size:12.5px;color:var(--muted);line-height:1.5;}

/* 通用板块 */
.section{padding:56px 0;}
.section-alt{background:var(--bg-tint);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:30px;}
.sec-kicker{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:800;color:var(--aqua-500);letter-spacing:.5px;margin-bottom:9px;}
.sec-kicker::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--grad-aqua);}
.sec-title{font-size:clamp(21px,2.2vw,27px);font-weight:800;color:var(--brand-800);letter-spacing:-.3px;margin-bottom:8px;}
.sec-sub{font-size:14.5px;color:var(--muted);max-width:680px;line-height:1.82;}
.sec-note{font-size:12.5px;color:var(--muted);display:inline-flex;align-items:center;gap:6px;white-space:nowrap;}
.sec-note i{color:var(--aqua-500);}

/* 指标看板 */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.stat-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px 20px;box-shadow:var(--shadow-xs);transition:all var(--ease);}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfe6f6;}
.stat-num{font-size:30px;font-weight:800;color:var(--brand-700);letter-spacing:-1px;line-height:1.1;}
.stat-num small{font-size:14px;font-weight:700;color:var(--aqua-500);margin-left:3px;letter-spacing:0;}
.stat-label{font-size:13.5px;font-weight:800;color:var(--ink);margin:9px 0 5px;}
.stat-desc{font-size:12.8px;color:var(--muted);line-height:1.72;}

/* 六族炮台卡片 */
.family-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.family-card{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
 box-shadow:var(--shadow-xs);transition:all var(--ease);display:flex;flex-direction:column;
}
.family-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfe6f6;}
.family-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--brand-800);}
.family-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.family-card:hover .family-media img{transform:scale(1.05);}
.family-chip{
 position:absolute;left:12px;top:12px;padding:4px 11px;border-radius:999px;
 background:rgba(7,26,46,.82);color:#c9f2f8;font-size:11.5px;font-weight:700;
 backdrop-filter:blur(4px);letter-spacing:.4px;
}
.family-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.family-body h3{font-size:16.5px;font-weight:800;color:var(--brand-800);letter-spacing:-.2px;}
.family-body p{font-size:13.8px;color:var(--ink-soft);line-height:1.8;}
.family-tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:auto;padding-top:4px;}
.tag{
 display:inline-block;font-size:11.5px;font-weight:700;color:var(--brand-600);
 background:var(--bg-tint);border:1px solid var(--line);padding:3px 9px;border-radius:999px;white-space:nowrap;
}

/* 横向对照表 */
.table-shell{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);overflow:hidden;}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
table.data-table{width:100%;min-width:780px;border-collapse:collapse;}
table.data-table thead th{
 background:var(--bg-tint);color:var(--brand-700);font-size:12.5px;font-weight:800;
 padding:13px 16px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap;letter-spacing:.3px;
}
table.data-table tbody td{
 padding:15px 16px;font-size:13.8px;color:var(--ink-soft);
 border-bottom:1px solid var(--line-soft);vertical-align:middle;
}
table.data-table tbody tr:last-child td{border-bottom:none;}
table.data-table tbody tr{transition:background var(--ease);}
table.data-table tbody tr:hover{background:#f8fcff;}
table.data-table tbody td:first-child{font-weight:800;color:var(--brand-800);white-space:nowrap;}
.td-strong{color:var(--aqua-500);font-weight:800;}
.table-foot{padding:14px 18px;font-size:12.5px;color:var(--muted);background:#fbfdff;border-top:1px solid var(--line-soft);display:flex;align-items:center;gap:8px;}
.table-foot i{color:var(--aqua-500);}

/* 解锁里程碑 */
.mile-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.mile-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px 20px 24px;box-shadow:var(--shadow-xs);transition:all var(--ease);}
.mile-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfe6f6;}
.mile-num{
 width:34px;height:34px;border-radius:11px;background:var(--grad-aqua);color:#04222f;
 display:grid;place-items:center;font-weight:800;font-size:15px;margin-bottom:14px;
 box-shadow:0 8px 18px rgba(40,194,214,.3);
}
.mile-card h3{font-size:15px;font-weight:800;color:var(--brand-800);margin-bottom:7px;}
.mile-card p{font-size:13.3px;color:var(--ink-soft);line-height:1.78;}
.mile-goal{margin-top:12px;font-size:12px;font-weight:800;color:var(--gold-500);display:inline-flex;align-items:center;gap:6px;}

/* 实机采样深色块 */
.evidence{position:relative;overflow:hidden;padding:58px 0;color:#e3f4fa;background:linear-gradient(140deg,#071a2e 0%,#0f3f63 58%,#12718c 100%);}
.evidence::before{
 content:"";position:absolute;inset:0;
 background-image:url('/assets/images/backpic/back-5.webp');
 background-size:cover;background-position:center;opacity:.18;
}
.evidence .wrap{position:relative;z-index:2;}
.ev-grid{display:grid;grid-template-columns:1fr 1fr;gap:42px;align-items:center;}
.evidence h2{font-size:clamp(21px,2.2vw,27px);font-weight:800;color:#fff;margin-bottom:12px;letter-spacing:-.3px;}
.evidence p.ev-lead{font-size:14.5px;color:rgba(227,244,250,.82);line-height:1.88;max-width:520px;}
.ev-kicker{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:800;color:var(--aqua-300);letter-spacing:.6px;margin-bottom:10px;}
.ev-list{display:grid;gap:13px;margin-top:24px;}
.ev-list li{display:flex;gap:13px;padding:15px 17px;border-radius:var(--radius-md);background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);}
.ev-list i{color:var(--aqua-300);font-size:18px;flex:none;line-height:1.5;}
.ev-list b{display:block;color:#fff;font-size:14px;font-weight:800;margin-bottom:3px;}
.ev-list span{font-size:13px;color:rgba(227,244,250,.78);line-height:1.72;}
.ev-figure{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg);border:1px solid rgba(255,255,255,.18);}
.ev-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.ev-figure figcaption{padding:12px 16px;background:rgba(7,26,46,.72);font-size:12.5px;color:rgba(227,244,250,.78);backdrop-filter:blur(4px);}

/* 资讯列表 */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.news-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-xs);transition:all var(--ease);display:flex;flex-direction:column;}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfe6f6;}
.news-thumb{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--bg-tint);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.news-card:hover .news-thumb img{transform:scale(1.05);}
.news-body{padding:16px 18px 20px;display:flex;flex-direction:column;gap:9px;flex:1;}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12px;color:var(--muted);}
.news-meta time{white-space:nowrap;color:#8aa2b5;}
.news-body h3{font-size:15.5px;font-weight:800;line-height:1.55;margin:0;}
.news-body h3 a{color:var(--brand-800);}
.news-body h3 a:hover{color:var(--aqua-500);}
.news-body p{font-size:13.5px;color:var(--ink-soft);line-height:1.76;}
.empty-note{
 padding:34px;border-radius:var(--radius-lg);background:#fff;border:1px dashed #c9dfef;
 color:var(--muted);font-size:14px;text-align:center;
}

/* 选炮底线 */
.guard-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.guard-card{
 background:#fff;border:1px solid var(--line);border-left:3px solid var(--aqua-400);
 border-radius:var(--radius-md);padding:22px 20px;box-shadow:var(--shadow-xs);transition:all var(--ease);
}
.guard-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfe6f6;border-left-color:var(--aqua-500);}
.guard-icon{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:var(--bg-tint);color:var(--brand-500);font-size:19px;margin-bottom:14px;}
.guard-card h3{font-size:15.5px;font-weight:800;color:var(--brand-800);margin-bottom:7px;}
.guard-card p{font-size:13.6px;color:var(--ink-soft);line-height:1.8;}

/* FAQ */
.faq-list{display:grid;gap:12px;max-width:920px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);box-shadow:var(--shadow-xs);transition:all var(--ease);}
.faq-item[open]{border-color:#c8e5f5;box-shadow:var(--shadow-sm);}
.faq-item summary{
 list-style:none;cursor:pointer;padding:16px 20px;font-weight:800;font-size:15px;color:var(--brand-800);
 display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";font-size:19px;font-weight:700;color:var(--aqua-500);transition:transform var(--ease);line-height:1;}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-body{padding:0 20px 18px;font-size:14px;color:var(--ink-soft);line-height:1.88;}

/* 订阅转化 */
.subscribe{position:relative;overflow:hidden;padding:54px 0;color:#e9f7fc;background:linear-gradient(140deg,#0b2742 0%,#14456f 52%,#12a8bf 100%);}
.subscribe::before{
 content:"";position:absolute;inset:0;
 background-image:url('/assets/images/backpic/back-8.webp');
 background-size:cover;background-position:center;opacity:.14;
}
.subscribe .wrap{position:relative;z-index:2;}
.sub-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;}
.subscribe h2{font-size:clamp(21px,2.3vw,28px);font-weight:800;color:#fff;margin-bottom:12px;letter-spacing:-.3px;}
.subscribe p{font-size:14.5px;color:rgba(233,247,252,.84);line-height:1.88;max-width:520px;}
.sub-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.sub-points span{
 display:inline-flex;align-items:center;gap:7px;padding:6px 13px;border-radius:999px;
 font-size:12.5px;font-weight:700;background:rgba(255,255,255,.1);
 border:1px solid rgba(255,255,255,.18);color:#d6f2f9;
}
.form-card{background:rgba(255,255,255,.98);border-radius:var(--radius-xl);padding:26px 24px;box-shadow:var(--shadow-lg);border:1px solid rgba(255,255,255,.7);}
.form-card h3{font-size:16px;font-weight:800;color:var(--brand-800);margin-bottom:6px;}
.form-card .form-hint{font-size:12.8px;color:var(--muted);margin-bottom:16px;line-height:1.7;}
.form-row{display:flex;gap:10px;flex-wrap:wrap;}
.field{
 flex:1 1 200px;min-height:44px;padding:11px 14px;border-radius:var(--radius-sm);
 border:1.5px solid var(--line);background:#fff;color:var(--ink);font-size:14px;
 transition:all var(--ease);
}
.field::placeholder{color:#9db3c4;}
.field:focus{outline:none;border-color:var(--aqua-400);box-shadow:0 0 0 3px rgba(40,194,214,.16);}
.btn-main{
 display:inline-flex;align-items:center;justify-content:center;gap:7px;
 padding:11px 22px;border-radius:10px;font-size:14.5px;font-weight:800;
 background:var(--grad-brand);color:#fff;box-shadow:0 10px 24px rgba(16,52,87,.28);
 transition:all var(--ease);min-height:44px;
}
.btn-main:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 32px rgba(16,52,87,.36);}
.btn-main:active{transform:translateY(0);}
.btn-ghost{
 display:inline-flex;align-items:center;justify-content:center;gap:7px;
 padding:10px 20px;border-radius:10px;font-size:14px;font-weight:700;
 color:var(--brand-600);border:1.5px solid #c6dced;background:#fff;
 transition:all var(--ease);min-height:44px;
}
.btn-ghost:hover{color:var(--brand-700);border-color:var(--aqua-400);background:#f7fdff;transform:translateY(-1px);}
.form-msg{margin-top:12px;font-size:13px;font-weight:700;color:var(--aqua-500);min-height:20px;}

/* 页脚 */
.site-footer{background:#071a2e;color:#c8dcea;padding:52px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.5fr .75fr .75fr;gap:36px;padding-bottom:32px;border-bottom:1px solid rgba(255,255,255,.1);}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;margin-bottom:14px;}
.footer-about{font-size:13.5px;line-height:1.88;color:rgba(200,220,234,.72);max-width:430px;}
.footer-col h4{font-size:14px;color:#fff;font-weight:800;margin-bottom:14px;letter-spacing:.4px;}
.footer-col ul{display:grid;gap:9px;}
.footer-col a{color:rgba(200,220,234,.75);font-size:13.5px;}
.footer-col a:hover{color:var(--aqua-300);}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;padding-top:22px;font-size:12.5px;color:rgba(200,220,234,.6);}
.fs-tags{display:flex;flex-wrap:wrap;gap:16px;}
.fs-tags span{display:inline-flex;align-items:center;gap:6px;}
.fs-tags i{color:var(--aqua-400);}

/* 响应式 */
@media (max-width:1024px){
 .hero-grid{grid-template-columns:1fr;gap:28px;}
 .ev-grid{grid-template-columns:1fr;gap:30px;}
 .sub-grid{grid-template-columns:1fr;gap:28px;}
 .family-grid{grid-template-columns:repeat(2,1fr);}
 .stats-grid{grid-template-columns:repeat(2,1fr);}
 .mile-grid{grid-template-columns:repeat(2,1fr);}
 .news-grid{grid-template-columns:repeat(2,1fr);}
 .guard-grid{grid-template-columns:1fr;}
 .footer-grid{grid-template-columns:1.2fr .8fr .8fr;gap:26px;}
}
@media (max-width:991.98px){
 .navbar-collapse{background:rgba(7,26,46,.98);border-radius:14px;padding:12px;margin-top:10px;border:1px solid rgba(255,255,255,.1);}
 .site-nav{flex-direction:column;align-items:stretch;gap:4px;width:100%;}
 .site-nav .nav-link{display:block;padding:11px 14px;}
 .nav-cta{margin-top:10px;justify-content:center;width:100%;}
 .sec-head{flex-direction:column;align-items:flex-start;gap:10px;}
}
@media (max-width:768px){
 .section{padding:42px 0;}
 .page-hero{padding:30px 0 36px;}
 .family-grid,.stats-grid,.mile-grid,.news-grid{grid-template-columns:1fr;}
 .footer-grid{grid-template-columns:1fr;gap:24px;}
 .footer-bottom{flex-direction:column;align-items:flex-start;}
 .evidence,.subscribe{padding:44px 0;}
}
@media (max-width:520px){
 .wrap{padding:0 16px;}
 .brand-text{font-size:15.5px;}
 .hero-tags span{font-size:12px;}
 .stat-num{font-size:26px;}
 .sub-grid,.ev-grid{gap:22px;}
 .form-row{flex-direction:column;}
 .field,.btn-main{width:100%;}
 .crumb-bar .wrap{min-height:44px;}
}

/* roulang page: category3 */
:root{
 --brand-900:#071a2e;
 --brand-800:#0b2742;
 --brand-700:#103457;
 --brand-600:#17507f;
 --brand-500:#1f6fb2;
 --aqua-500:#12a8bf;
 --aqua-400:#28c2d6;
 --aqua-300:#6fe3ec;
 --gold-400:#ffb545;
 --gold-500:#f0991b;
 --ink:#0e2233;
 --ink-soft:#2b4a63;
 --muted:#5f7689;
 --line:#e3edf6;
 --line-soft:#eef4fa;
 --bg:#f5f9fd;
 --bg-tint:#eef6fc;
 --white:#ffffff;
 --radius-xl:26px;
 --radius-lg:20px;
 --radius-md:14px;
 --radius-sm:10px;
 --shadow-xs:0 2px 8px rgba(11,39,66,.05);
 --shadow-sm:0 6px 18px rgba(11,39,66,.07);
 --shadow-md:0 14px 34px rgba(11,39,66,.11);
 --shadow-lg:0 26px 64px rgba(11,39,66,.18);
 --grad-brand:linear-gradient(135deg,#0b2742 0%,#14456f 52%,#12a8bf 100%);
 --grad-aqua:linear-gradient(135deg,#28c2d6 0%,#1f6fb2 100%);
 --grad-gold:linear-gradient(135deg,#ffc766 0%,#f0991b 100%);
 --ease:.22s cubic-bezier(.4,.2,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
 margin:0;
 font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
 font-size:15.5px;line-height:1.78;color:var(--ink);background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-500);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--aqua-500);}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
h1,h2,h3,h4{margin:0;line-height:1.32;font-weight:800;letter-spacing:-.2px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
:focus-visible{outline:3px solid rgba(40,194,214,.55);outline-offset:2px;border-radius:6px;}

/* ===== 导航 ===== */
.site-header{
 position:sticky;top:0;z-index:1040;
 background:rgba(7,26,46,.94);
 backdrop-filter:blur(14px);
 border-bottom:1px solid rgba(255,255,255,.08);
 transition:box-shadow var(--ease);
}
.site-header.is-stuck{box-shadow:0 10px 30px rgba(3,15,28,.35);}
.site-header .navbar{padding:0;}
.nav-inner{display:flex;align-items:center;justify-content:space-between;min-height:66px;gap:18px;width:100%;}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;letter-spacing:.2px;}
.brand:hover{color:#fff;}
.brand-mark{
 width:36px;height:36px;border-radius:11px;flex:none;
 background:var(--grad-aqua);display:grid;place-items:center;color:#04222f;font-size:18px;
 box-shadow:0 6px 16px rgba(40,194,214,.35);
}
.brand-text small{display:block;font-size:11px;font-weight:500;color:rgba(223,246,251,.6);letter-spacing:1.4px;line-height:1.2;}
.navbar-nav.site-nav{display:flex;align-items:center;gap:6px;}
.site-nav .nav-link{color:rgba(223,246,251,.78);font-size:14.5px;font-weight:600;padding:9px 14px;border-radius:9px;transition:all var(--ease);}
.site-nav .nav-link:hover{color:#fff;background:rgba(255,255,255,.08);}
.site-nav .nav-link.active{color:#062431;background:var(--grad-aqua);box-shadow:0 6px 18px rgba(40,194,214,.32);}
.nav-cta{
 display:inline-flex;align-items:center;gap:7px;padding:9px 18px;border-radius:9px;
 background:var(--grad-gold);color:#3a2200;font-weight:800;font-size:14px;
 box-shadow:0 8px 20px rgba(240,153,27,.3);transition:all var(--ease);white-space:nowrap;
}
.nav-cta:hover{color:#3a2200;transform:translateY(-1px);box-shadow:0 12px 26px rgba(240,153,27,.4);}
.navbar-toggler{border:1px solid rgba(255,255,255,.22);padding:6px 10px;border-radius:9px;color:#dff6fb;min-height:40px;}
.navbar-toggler:focus{box-shadow:none;}
.navbar-toggler i{font-size:19px;color:#dff6fb;}

/* ===== 面包屑 ===== */
.crumbbar{background:#fff;border-bottom:1px solid var(--line);}
.crumb{display:flex;align-items:center;gap:9px;flex-wrap:wrap;padding:12px 0;font-size:13px;color:var(--muted);}
.crumb a{color:var(--brand-600);font-weight:700;}
.crumb a:hover{color:var(--aqua-500);}
.crumb i{font-size:10px;color:#b9ccdb;}
.crumb .cur{color:var(--ink-soft);font-weight:700;}
.crumb .back{margin-left:auto;font-size:12.5px;font-weight:700;color:var(--aqua-500);display:inline-flex;align-items:center;gap:5px;}

/* ===== Hero ===== */
.hero{position:relative;overflow:hidden;background:linear-gradient(150deg,#061829 0%,#0d3355 48%,#0f5570 100%);color:#e9f7fc;padding:46px 0 60px;}
.hero::before{
 content:"";position:absolute;inset:0;
 background-image:url('/assets/images/backpic/back-2.webp');
 background-size:cover;background-position:center;opacity:.26;
}
.hero::after{
 content:"";position:absolute;inset:0;
 background:radial-gradient(680px 320px at 82% 12%,rgba(40,194,214,.3),transparent 70%),
 linear-gradient(180deg,rgba(6,24,41,.4),rgba(6,24,41,.88));
}
.hero .wrap{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:44px;align-items:start;}
.hero-tagline{
 display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
 background:rgba(40,194,214,.16);border:1px solid rgba(111,227,236,.36);
 color:#9deef7;font-size:12.5px;font-weight:700;letter-spacing:.6px;margin-bottom:18px;
}
.hero h1{font-size:clamp(27px,3.2vw,41px);color:#fff;line-height:1.26;margin-bottom:16px;letter-spacing:-.6px;}
.hero h1 em{font-style:normal;color:var(--aqua-300);}
.hero-lead{font-size:15.4px;color:rgba(226,245,251,.86);line-height:1.88;max-width:600px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.hero-tags span{padding:6px 13px;border-radius:999px;font-size:12.5px;font-weight:600;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.16);color:#d9f1f8;}
.hero-btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.btn-main{
 display:inline-flex;align-items:center;justify-content:center;gap:7px;
 padding:11px 22px;border-radius:10px;font-size:14.5px;font-weight:800;
 background:var(--grad-brand);color:#fff;box-shadow:0 10px 24px rgba(16,52,87,.28);transition:all var(--ease);
}
.btn-main:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 32px rgba(16,52,87,.36);}
.btn-gold{
 display:inline-flex;align-items:center;justify-content:center;gap:7px;
 padding:11px 22px;border-radius:10px;font-size:14.5px;font-weight:800;
 background:var(--grad-gold);color:#3a2200;box-shadow:0 10px 24px rgba(240,153,27,.32);transition:all var(--ease);
}
.btn-gold:hover{color:#3a2200;transform:translateY(-2px);box-shadow:0 16px 30px rgba(240,153,27,.42);}
.btn-line{
 display:inline-flex;align-items:center;justify-content:center;gap:7px;
 padding:10px 20px;border-radius:10px;font-size:14px;font-weight:700;
 color:#dff6fb;border:1.5px solid rgba(255,255,255,.35);background:rgba(255,255,255,.06);transition:all var(--ease);
}
.btn-line:hover{color:#fff;border-color:var(--aqua-300);background:rgba(255,255,255,.13);transform:translateY(-2px);}

/* ===== 档位对比卡 ===== */
.tier-card{
 background:rgba(255,255,255,.98);border-radius:var(--radius-xl);
 padding:22px 22px 20px;box-shadow:var(--shadow-lg);border:1px solid rgba(255,255,255,.6);
}
.tier-card h3{font-size:16px;color:var(--brand-800);margin-bottom:4px;}
.tier-card .tier-note{font-size:12.5px;color:var(--muted);margin-bottom:16px;}
.tier{
 display:flex;gap:12px;align-items:flex-start;padding:13px 14px;border-radius:var(--radius-md);
 border:1px solid var(--line);background:#fff;transition:all var(--ease);margin-bottom:10px;
}
.tier:hover{transform:translateY(-2px);box-shadow:var(--shadow-sm);border-color:#cfe3f1;}
.tier .tier-ico{width:36px;height:36px;border-radius:11px;display:grid;place-items:center;background:var(--bg-tint);color:var(--brand-600);font-size:17px;flex:none;}
.tier .t-body{flex:1;min-width:0;}
.tier .t-top{display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
.tier .t-name{font-size:14px;font-weight:800;color:var(--brand-800);}
.tier .t-desc{font-size:12.6px;color:var(--muted);line-height:1.62;margin-top:2px;}
.tier .t-coef{font-size:12px;font-weight:800;color:var(--brand-600);white-space:nowrap;}
.tier.is-rec{background:linear-gradient(135deg,#eaf9fc,#f3fbfd);border-color:var(--aqua-400);box-shadow:0 10px 24px rgba(18,168,191,.16);}
.tier.is-rec .tier-ico{background:var(--grad-aqua);color:#04222f;}
.tier.is-rec .t-coef{color:var(--gold-500);}
.rec-badge{font-size:10.5px;font-weight:800;letter-spacing:.5px;color:#7a4a00;background:var(--grad-gold);padding:2px 8px;border-radius:999px;}
.tier-card .btn-gold{width:100%;margin-top:8px;}

/* ===== 板块 ===== */
.sec{padding:64px 0;}
.sec-tint{background:var(--bg-tint);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}
.sec-head{max-width:760px;margin-bottom:34px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:800;letter-spacing:1.2px;color:var(--aqua-500);margin-bottom:12px;}
.eyebrow::before{content:"";width:22px;height:3px;border-radius:2px;background:var(--grad-aqua);}
.sec-head h2{font-size:clamp(21px,2.4vw,29px);color:var(--brand-800);}
.sec-head p{margin-top:12px;color:var(--ink-soft);font-size:14.8px;line-height:1.85;}

/* ===== 指标看板 ===== */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.metric{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px 20px;box-shadow:var(--shadow-xs);transition:all var(--ease);}
.metric:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#c9e2f2;}
.metric .num{font-size:29px;font-weight:900;line-height:1.15;background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;}
.metric .lbl{font-size:13.6px;font-weight:800;color:var(--brand-800);margin-top:8px;}
.metric .sub{font-size:12.6px;color:var(--muted);line-height:1.65;margin-top:4px;}

/* ===== 卡片网格 ===== */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.card{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
 box-shadow:var(--shadow-xs);transition:all var(--ease);height:100%;display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c9e2f2;}
.card-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--bg-tint);}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease);}
.card:hover .card-thumb img{transform:scale(1.05);}
.card-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:8px;flex:1;}
.card-body h3{font-size:16px;color:var(--brand-800);}
.card-body p{font-size:13.6px;color:var(--ink-soft);line-height:1.75;}
.card-tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:auto;padding-top:12px;}
.tag{font-size:11.5px;font-weight:700;padding:3px 9px;border-radius:999px;background:var(--bg-tint);color:var(--brand-600);border:1px solid #d9eaf6;}

/* ===== 图标卡 ===== */
.icon-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px 22px;box-shadow:var(--shadow-xs);transition:all var(--ease);height:100%;}
.icon-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c9e2f2;}
.icon-card .ic{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;font-size:21px;background:var(--grad-aqua);color:#04222f;box-shadow:0 10px 22px rgba(40,194,214,.28);margin-bottom:16px;}
.icon-card h3{font-size:16px;color:var(--brand-800);margin-bottom:8px;}
.icon-card p{font-size:13.8px;color:var(--ink-soft);line-height:1.78;}
.icon-card .meta{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:12.4px;font-weight:800;color:var(--aqua-500);}

/* ===== 赛程节奏 ===== */
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px 20px;box-shadow:var(--shadow-xs);transition:all var(--ease);}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c9e2f2;}
.step .step-no{width:28px;height:28px;border-radius:9px;display:grid;place-items:center;background:var(--grad-aqua);color:#04222f;font-size:12.5px;font-weight:900;margin-bottom:12px;}
.step h3{font-size:15px;color:var(--brand-800);margin-bottom:8px;}
.step p{font-size:13.5px;color:var(--ink-soft);line-height:1.75;}
.step .step-time{display:inline-block;margin-top:12px;font-size:12px;font-weight:800;color:var(--aqua-500);}

/* ===== 对比表 ===== */
.cmp{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);}
.cmp table{width:100%;border-collapse:collapse;font-size:14px;}
.cmp thead th{background:var(--brand-800);color:#dff2fa;font-size:13px;font-weight:700;padding:14px 18px;text-align:left;white-space:nowrap;}
.cmp tbody td{padding:15px 18px;border-top:1px solid var(--line-soft);color:var(--ink-soft);vertical-align:top;line-height:1.7;}
.cmp tbody tr:nth-child(even){background:#fafdff;}
.cmp tbody td:first-child{font-weight:800;color:var(--brand-800);}
.cmp .up{color:#0f9f6e;font-weight:800;}
.cmp .mid{color:var(--brand-600);font-weight:800;}
.cmp .down{color:#c9762a;font-weight:800;}

/* ===== 榜单阶梯 ===== */
.ladder{display:grid;gap:12px;}
.rung{display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);padding:14px 18px;box-shadow:var(--shadow-xs);transition:all var(--ease);}
.rung:hover{transform:translateX(4px);border-color:#c9e2f2;box-shadow:var(--shadow-sm);}
.rung .rk{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;background:var(--bg-tint);color:var(--brand-600);font-weight:900;font-size:13.5px;flex:none;}
.rung .rname{font-weight:800;color:var(--brand-800);font-size:14.4px;min-width:96px;}
.rung .rneed{font-size:13px;color:var(--muted);flex:1;min-width:0;}
.rung .rreward{font-size:12.6px;font-weight:800;color:var(--gold-500);white-space:nowrap;}
.side-note{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px;box-shadow:var(--shadow-xs);}
.side-note h3{font-size:16px;color:var(--brand-800);margin-bottom:12px;}
.side-note li{display:flex;gap:10px;font-size:13.6px;color:var(--ink-soft);line-height:1.75;padding:9px 0;border-bottom:1px dashed var(--line);}
.side-note li:last-child{border-bottom:none;}
.side-note li i{color:var(--aqua-500);font-size:14px;margin-top:3px;}

/* ===== 资讯列表 ===== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.news-card{display:flex;flex-direction:column;gap:8px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:20px;box-shadow:var(--shadow-xs);transition:all var(--ease);}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#c9e2f2;color:inherit;}
.news-cat{font-size:11.6px;font-weight:800;letter-spacing:.6px;color:var(--aqua-500);}
.news-card h3{font-size:15.4px;color:var(--brand-800);line-height:1.55;}
.news-card p{font-size:13.4px;color:var(--ink-soft);line-height:1.72;}
.news-time{font-size:12px;color:var(--muted);margin-top:auto;padding-top:8px;}
.empty-box{background:#fff;border:1px dashed #c9dceb;border-radius:var(--radius-lg);padding:30px;text-align:center;color:var(--muted);font-size:14px;}

/* ===== FAQ ===== */
.faq-list{display:grid;gap:12px;max-width:920px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-xs);transition:all var(--ease);}
.faq-item:hover{border-color:#c9e2f2;box-shadow:var(--shadow-sm);}
.faq-item summary{cursor:pointer;padding:16px 20px;font-weight:800;color:var(--brand-800);font-size:15px;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:44px;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"\002B";color:var(--aqua-500);font-weight:900;font-size:18px;line-height:1;}
.faq-item[open] summary::after{content:"\2212";}
.faq-item p{padding:0 20px 18px;font-size:14px;color:var(--ink-soft);line-height:1.82;}

/* ===== 转化区 ===== */
.cta-band{
 position:relative;overflow:hidden;background:var(--grad-brand);color:#eaf8fc;
 border-radius:var(--radius-xl);padding:40px;box-shadow:var(--shadow-lg);
}
.cta-band::after{
 content:"";position:absolute;inset:0;pointer-events:none;
 background:radial-gradient(520px 240px at 88% 10%,rgba(111,227,236,.28),transparent 70%);
}
.cta-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:34px;align-items:center;position:relative;z-index:2;}
.cta-band h2{font-size:clamp(21px,2.3vw,28px);color:#fff;margin-bottom:12px;}
.cta-band p{font-size:14.6px;color:rgba(230,247,252,.88);line-height:1.85;}
.sub-form{display:flex;gap:10px;background:rgba(255,255,255,.12);padding:8px;border-radius:14px;border:1px solid rgba(255,255,255,.24);}
.sub-form input{flex:1;min-width:0;border:none;background:transparent;color:#fff;padding:10px 14px;font-size:14px;outline:none;border-radius:8px;min-height:40px;}
.sub-form input::placeholder{color:rgba(223,246,251,.62);}
.sub-form button{
 display:inline-flex;align-items:center;gap:6px;
 padding:10px 18px;border-radius:9px;font-size:14px;font-weight:800;
 background:var(--grad-gold);color:#3a2200;white-space:nowrap;transition:all var(--ease);min-height:40px;
}
.sub-form button:hover{transform:translateY(-1px);box-shadow:0 10px 22px rgba(240,153,27,.35);}
.form-note{font-size:12.6px;color:rgba(223,246,251,.72);margin-top:10px;}
.guards{display:flex;flex-wrap:wrap;gap:16px;margin-top:18px;}
.guards span{display:inline-flex;align-items:center;gap:6px;font-size:12.6px;color:rgba(223,246,251,.88);}

/* ===== 页脚 ===== */
.site-footer{background:#061829;color:rgba(214,238,246,.72);padding:52px 0 26px;border-top:1px solid rgba(255,255,255,.08);}
.footer-grid{display:grid;grid-template-columns:1.5fr .8fr .8fr;gap:38px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;margin-bottom:14px;}
.footer-about{font-size:13.6px;line-height:1.88;color:rgba(197,226,238,.72);max-width:430px;}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:14px;}
.footer-col li{margin-bottom:9px;}
.footer-col a{font-size:13.6px;color:rgba(197,226,238,.72);}
.footer-col a:hover{color:var(--aqua-300);}
.footer-bottom{
 margin-top:36px;padding-top:18px;border-top:1px solid rgba(255,255,255,.1);
 display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
 font-size:12.6px;color:rgba(180,214,228,.66);
}
.fs-tags{display:flex;gap:16px;flex-wrap:wrap;}
.fs-tags span{display:inline-flex;align-items:center;gap:6px;}

/* ===== 响应式 ===== */
@media (max-width:1024px){
 .hero-grid,.cta-grid,.footer-grid{grid-template-columns:1fr;}
 .grid-4{grid-template-columns:repeat(2,1fr);}
 .grid-3{grid-template-columns:repeat(2,1fr);}
 .news-grid{grid-template-columns:repeat(2,1fr);}
 .metrics,.timeline{grid-template-columns:repeat(2,1fr);}
 .hero{padding:38px 0 48px;}
 .sec{padding:54px 0;}
}
@media (max-width:991.98px){
 #mainNav{background:rgba(7,26,46,.98);border:1px solid rgba(255,255,255,.1);border-radius:14px;padding:12px;margin-top:10px;}
 .navbar-nav.site-nav{flex-direction:column;align-items:stretch;gap:4px;}
 .site-nav .nav-link{padding:11px 14px;min-height:40px;display:flex;align-items:center;}
 .nav-cta{margin-top:10px;width:100%;justify-content:center;min-height:40px;}
 .nav-inner{min-height:60px;}
}
@media (max-width:768px){
 .sec-head{margin-bottom:26px;}
 .cta-band{padding:28px 22px;}
 .cmp{overflow-x:auto;}
 .cmp table{min-width:560px;}
 .rung{flex-wrap:wrap;gap:8px;}
 .rung .rneed{flex:1 1 100%;}
 .crumb .back{margin-left:0;}
}
@media (max-width:520px){
 .grid-4,.grid-3,.news-grid,.metrics,.timeline{grid-template-columns:1fr;}
 .sec{padding:42px 0;}
 .hero h1{font-size:25px;}
 .sub-form{flex-direction:column;}
 .sub-form button{width:100%;justify-content:center;}
 .tier-card{padding:18px;}
 .metric .num{font-size:26px;}
}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}