/* roulang page: index */
:root{
  --ink:#0d1526;
  --ink-soft:#18233a;
  --brand:#2f6df6;
  --brand-deep:#1d4fc4;
  --brand-soft:#eaf0ff;
  --accent:#eda33c;
  --accent-soft:#fdf3e2;
  --bg:#f5f7fb;
  --surface:#ffffff;
  --text:#1b2334;
  --muted:#5f6b7f;
  --border:#e4e9f3;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 6px 22px rgba(16,30,60,.07);
  --shadow-lg:0 18px 44px rgba(16,30,60,.16);
  --space:clamp(54px,6.5vw,92px);
  --container:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.78;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-deep);}
h1,h2,h3,h4{margin:0 0 14px;font-weight:800;letter-spacing:.2px;color:var(--text);line-height:1.35;}
p{margin:0 0 14px;}
ul,ol{margin:0 0 14px;padding-left:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(47,109,246,.45);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding-left:20px;padding-right:20px;}

/* ===== 按钮 ===== */
.btn-main,.btn-ghost,.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 26px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:700;line-height:1.2;letter-spacing:.4px;
  border:1px solid transparent;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-main{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(47,109,246,.26);}
.btn-main:hover{background:var(--brand-deep);color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px rgba(47,109,246,.34);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.42);}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px);}
.btn-line{background:#fff;color:var(--ink);border-color:var(--border);box-shadow:var(--shadow);}
.btn-line:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.btn-sm{min-height:38px;padding:8px 18px;font-size:14px;}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:1030;background:rgba(255,255,255,.96);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--border);transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:0 10px 26px rgba(16,30,60,.1);}
.brand-row-wrap{background:#fff;}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:18px;height:64px;}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink);min-height:44px;}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;display:grid;place-items:center;
  border-radius:11px;background:linear-gradient(150deg,var(--brand),#6d9bff);
  color:#fff;font-weight:800;font-size:18px;letter-spacing:0;box-shadow:0 6px 14px rgba(47,109,246,.3);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:18px;font-weight:800;letter-spacing:.6px;}
.brand-text small{font-size:11.5px;color:var(--muted);letter-spacing:1.2px;margin-top:3px;}
.brand-actions{display:flex;align-items:center;gap:10px;}
.channel-row-wrap{border-top:1px solid var(--border);background:linear-gradient(180deg,#fbfcff,#f6f8fd);}
.channel-row{display:flex;align-items:center;justify-content:space-between;gap:16px;height:50px;}
.channel-nav{display:flex;align-items:center;gap:6px;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;}
.channel-nav::-webkit-scrollbar{display:none;}
.channel{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;
  font-size:14.5px;font-weight:600;color:#42506a;white-space:nowrap;
  border:1px solid transparent;transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.channel:hover{background:#fff;color:var(--brand);border-color:var(--border);}
.channel.active{background:var(--ink);color:#fff;border-color:var(--ink);}
.channel.active:hover{background:var(--ink-soft);color:#fff;}
.channel-extra{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);white-space:nowrap;}
.dot-live{width:8px;height:8px;border-radius:50%;background:#28a06a;box-shadow:0 0 0 4px rgba(40,160,106,.16);}
.nav-toggle{
  width:42px;height:42px;border-radius:11px;border:1px solid var(--border);background:#fff;
  display:none;flex-direction:column;justify-content:center;align-items:center;gap:4px;padding:0;
}
.nav-toggle span{width:18px;height:2px;background:var(--ink);border-radius:2px;display:block;}
.mobile-channels{background:#fff;border-top:1px solid var(--border);padding:10px 20px 18px;}
.mobile-channels .channel{display:block;height:auto;padding:12px 14px;border-radius:10px;border:1px solid var(--border);margin-bottom:8px;font-size:15px;}
.mobile-channels .channel.active{background:var(--ink);color:#fff;border-color:var(--ink);}

/* ===== Hero 卡片堆叠 ===== */
.hero{
  position:relative;overflow:hidden;padding:clamp(34px,4.6vw,60px) 0 clamp(46px,5.6vw,76px);
  background:
    linear-gradient(135deg,rgba(11,18,32,.95) 0%,rgba(19,32,60,.9) 48%,rgba(23,44,88,.86) 100%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  color:#fff;
}
.hero::after{
  content:"";position:absolute;inset:auto -10% -60% 55%;height:420px;
  background:radial-gradient(circle,rgba(47,109,246,.4),transparent 68%);pointer-events:none;
}
.hero-stack{
  position:relative;z-index:2;display:grid;gap:18px;
  grid-template-columns:1.55fr 1fr;
  grid-template-areas:"main a" "main b";
  align-items:start;
}
.hero-card{border-radius:calc(var(--radius) + 4px);}
.hero-main{
  grid-area:main;padding:clamp(26px,3vw,42px);
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.16);
  box-shadow:0 24px 60px rgba(4,10,24,.34);
  backdrop-filter:blur(6px);
}
.pill{
  display:inline-flex;align-items:center;gap:8px;padding:6px 15px;border-radius:999px;
  font-size:12.5px;font-weight:700;letter-spacing:1.4px;
  background:rgba(47,109,246,.22);color:#c3d5ff;border:1px solid rgba(107,152,255,.36);
  margin-bottom:20px;
}
.hero-main h1{
  color:#fff;font-size:clamp(27px,3.4vw,42px);font-weight:800;line-height:1.28;letter-spacing:.6px;margin-bottom:18px;
}
.hero-main .lead{color:rgba(233,239,253,.86);font-size:15.5px;line-height:1.9;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;}
.hero-tags li{
  padding:6px 14px;border-radius:999px;font-size:13px;color:#d5e1fb;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
}
.hero-side{
  padding:20px;background:#fff;color:var(--text);
  box-shadow:var(--shadow-lg);border:1px solid rgba(255,255,255,.7);
}
.hero-side-a{grid-area:a;transform:translateY(10px);}
.hero-side-b{grid-area:b;transform:translateY(-8px);}
.hero-side h3{font-size:16px;margin:14px 0 8px;}
.hero-side p{font-size:13.5px;color:var(--muted);line-height:1.78;margin:0;}
.hero-thumb{border-radius:var(--radius-sm);overflow:hidden;aspect-ratio:16/10;background:var(--brand-soft);}
.hero-thumb img{width:100%;height:100%;object-fit:cover;}
.mini-stats{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px;}
.mini-stat{background:#f6f8fd;border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px 12px;}
.mini-stat b{display:block;font-size:19px;color:var(--ink);line-height:1.2;}
.mini-stat span{font-size:12px;color:var(--muted);}

/* ===== 通用板块 ===== */
.section{padding:var(--space) 0;}
.section-alt{background:#fff;}
.section-dark{background:var(--ink);color:#dfe6f5;}
.section-dark h2,.section-dark h3{color:#fff;}
.section-head{max-width:760px;margin-bottom:38px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;font-size:12.5px;font-weight:800;
  letter-spacing:2px;color:var(--brand);text-transform:uppercase;margin-bottom:12px;
}
.eyebrow::before{content:"";width:26px;height:2px;border-radius:2px;background:var(--brand);}
.section-dark .eyebrow{color:#8fb2ff;}
.section-dark .eyebrow::before{background:#8fb2ff;}
.section-head h2{font-size:clamp(23px,2.6vw,32px);}
.section-head p{color:var(--muted);font-size:15px;line-height:1.85;margin:0;}
.section-dark .section-head p{color:#a9b6cf;}

/* ===== 服务亮点 ===== */
.feature-layout{display:grid;grid-template-columns:.85fr 1.6fr;gap:40px;align-items:start;}
.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.feature-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:24px 22px;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#c9d8fb;}
.feature-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);margin-bottom:16px;
}
.feature-icon svg{width:22px;height:22px;}
.feature-card h3{font-size:16.5px;margin-bottom:8px;}
.feature-card p{font-size:14px;color:var(--muted);line-height:1.78;margin:0;}
.quote-side{
  background:linear-gradient(160deg,#101c33,#1b2c50);
  border-radius:var(--radius);padding:28px 26px;color:#dbe4f7;box-shadow:var(--shadow-lg);
}
.quote-side h3{color:#fff;font-size:17px;margin-bottom:12px;}
.quote-side p{font-size:14px;color:#a8b6d2;line-height:1.8;}
.quote-side hr{border:0;border-top:1px solid rgba(255,255,255,.14);margin:18px 0;}

/* ===== 时段卡 ===== */
.slot-wrap{
  border-radius:calc(var(--radius) + 4px);overflow:hidden;
  background:linear-gradient(120deg,rgba(13,21,38,.94),rgba(24,40,74,.88)),
    url('/assets/images/backpic/back-5.webp') center/cover no-repeat;
  padding:clamp(28px,3.4vw,46px);
}
.slot-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px;color:#fff;}
.slot-head h2{color:#fff;font-size:clamp(22px,2.5vw,30px);margin-bottom:8px;}
.slot-head p{color:#a9b8d6;font-size:14.5px;margin:0;max-width:560px;}
.slot-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.slot-card{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius);padding:20px 18px;color:#e6ecfa;
  transition:transform .2s ease,background .2s ease,border-color .2s ease;
}
.slot-card:hover{transform:translateY(-4px);background:rgba(255,255,255,.12);border-color:rgba(143,178,255,.55);}
.slot-time{font-size:12.5px;font-weight:800;letter-spacing:1.6px;color:var(--accent);margin-bottom:10px;}
.slot-card h3{color:#fff;font-size:16px;margin-bottom:8px;}
.slot-card p{font-size:13.5px;color:#a7b5d3;line-height:1.75;margin:0;}

/* ===== 分类入口墙 ===== */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.channel-card{
  display:block;background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);color:var(--text);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.channel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#c9d8fb;color:var(--text);}
.channel-card .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--brand-soft);}
.channel-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.channel-card:hover .thumb img{transform:scale(1.05);}
.channel-card .body{padding:20px 22px 24px;}
.channel-card h3{font-size:17px;margin-bottom:8px;}
.channel-card p{font-size:13.8px;color:var(--muted);line-height:1.78;margin:0 0 14px;}
.channel-card .more{font-size:13.5px;font-weight:700;color:var(--brand);}

/* ===== 专家团队 ===== */
.expert-layout{display:grid;grid-template-columns:.9fr 1.5fr;gap:40px;align-items:center;}
.expert-list{display:grid;gap:16px;}
.expert-card{
  display:flex;gap:18px;align-items:flex-start;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.expert-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#c9d8fb;}
.expert-avatar{width:64px;height:64px;flex:0 0 64px;border-radius:50%;overflow:hidden;background:var(--brand-soft);border:2px solid #fff;box-shadow:0 4px 12px rgba(16,30,60,.14);}
.expert-avatar img{width:100%;height:100%;object-fit:cover;}
.expert-card h3{font-size:16.5px;margin-bottom:4px;}
.expert-role{font-size:12.5px;color:var(--brand);font-weight:700;letter-spacing:.6px;margin-bottom:8px;display:block;}
.expert-card p{font-size:13.8px;color:var(--muted);margin:0;line-height:1.76;}

/* ===== 数据指标 ===== */
.metric-band{background:var(--ink);padding:clamp(38px,4.4vw,58px) 0;}
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.metric{padding:20px 22px;border-left:2px solid rgba(47,109,246,.6);}
.metric b{display:block;font-size:clamp(26px,3vw,36px);color:#fff;font-weight:800;line-height:1.15;letter-spacing:.5px;}
.metric span{font-size:13px;color:#93a3c2;letter-spacing:.8px;}

/* ===== 三步流程 ===== */
.step-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:step;}
.step-card{
  position:relative;background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:28px 24px 26px;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.step-num{
  font-size:32px;font-weight:800;color:transparent;-webkit-text-stroke:1.4px rgba(47,109,246,.55);
  line-height:1;margin-bottom:14px;letter-spacing:1px;
}
.step-card h3{font-size:16.5px;margin-bottom:8px;}
.step-card p{font-size:13.8px;color:var(--muted);margin:0;line-height:1.78;}

/* ===== 保障条 ===== */
.guard-band{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:clamp(30px,3.4vw,44px) 0;}
.guard-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.guard-item{display:flex;gap:12px;align-items:flex-start;}
.guard-badge{
  width:36px;height:36px;flex:0 0 36px;border-radius:10px;display:grid;place-items:center;
  background:var(--accent-soft);color:#b97b12;font-weight:800;font-size:13px;
}
.guard-item h3{font-size:15px;margin-bottom:5px;}
.guard-item p{font-size:13.3px;color:var(--muted);margin:0;line-height:1.72;}

/* ===== 评价墙 ===== */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.review-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px 22px;
  box-shadow:var(--shadow);position:relative;transition:transform .2s ease,box-shadow .2s ease;
}
.review-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);}
.review-card::before{
  content:"“";position:absolute;top:6px;right:18px;font-size:52px;line-height:1;
  color:rgba(47,109,246,.14);font-family:Georgia,serif;
}
.review-card p{font-size:14.2px;color:#3a465c;line-height:1.82;margin:0 0 16px;}
.review-user{display:flex;align-items:center;gap:10px;}
.review-user span{font-size:13px;font-weight:700;color:var(--ink);}
.review-user small{font-size:12px;color:var(--muted);display:block;font-weight:400;}
.avatar-dot{width:34px;height:34px;border-radius:50%;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;font-weight:800;font-size:14px;}

/* ===== 专题卡 ===== */
.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.topic-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.topic-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#c9d8fb;}
.topic-card .thumb{aspect-ratio:3/2;overflow:hidden;background:var(--brand-soft);}
.topic-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.topic-card:hover .thumb img{transform:scale(1.05);}
.topic-card .body{padding:18px 20px 22px;}
.topic-card h3{font-size:16px;margin-bottom:8px;}
.topic-card p{font-size:13.6px;color:var(--muted);margin:0 0 14px;line-height:1.76;}
.tag{
  display:inline-block;padding:4px 11px;border-radius:999px;font-size:12px;font-weight:700;
  background:var(--brand-soft);color:var(--brand-deep);letter-spacing:.4px;
}
.tag-soft{background:#f1f4fa;color:#5a677d;}

/* ===== 资讯区 ===== */
.news-layout{display:grid;grid-template-columns:1.62fr 1fr;gap:32px;align-items:start;}
.news-list{display:grid;gap:14px;}
.news-item{
  display:block;background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:20px 22px;box-shadow:var(--shadow);color:var(--text);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#c9d8fb;color:var(--text);}
.news-item h3{font-size:16px;margin-bottom:8px;line-height:1.5;}
.news-item p{font-size:13.6px;color:var(--muted);line-height:1.76;margin:0 0 12px;}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:12.5px;color:#8a94a6;}
.side-panel{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px 22px;box-shadow:var(--shadow);}
.side-panel h3{font-size:16.5px;margin-bottom:16px;}
.side-list{display:grid;gap:14px;}
.side-item{display:block;padding-bottom:14px;border-bottom:1px dashed var(--border);color:var(--text);}
.side-item:last-child{border-bottom:0;padding-bottom:0;}
.side-item:hover{color:var(--brand);}
.side-item strong{display:block;font-size:14.2px;font-weight:700;line-height:1.55;margin-bottom:5px;}
.side-item span{font-size:12.5px;color:#8a94a6;}
.empty-note{font-size:14px;color:var(--muted);background:#fff;border:1px dashed var(--border);border-radius:var(--radius);padding:24px;text-align:center;}

/* ===== FAQ ===== */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px 24px;
  box-shadow:var(--shadow);transition:border-color .2s ease,transform .2s ease;
}
.faq-item:hover{border-color:#c9d8fb;transform:translateY(-2px);}
.faq-item h3{font-size:15.5px;margin-bottom:10px;display:flex;gap:10px;align-items:flex-start;}
.faq-item h3 .q-mark{
  flex:0 0 24px;width:24px;height:24px;border-radius:7px;background:var(--brand);color:#fff;
  font-size:13px;display:grid;place-items:center;margin-top:2px;
}
.faq-item p{font-size:13.9px;color:var(--muted);line-height:1.82;margin:0;padding-left:34px;}

/* ===== 表单区 ===== */
.contact-band{
  background:linear-gradient(125deg,#101a2e,#1c2f57);
  color:#e7edfa;padding:clamp(40px,5vw,72px) 0;
}
.contact-layout{display:grid;grid-template-columns:1fr 1.05fr;gap:40px;align-items:center;}
.contact-layout h2{color:#fff;font-size:clamp(23px,2.7vw,32px);margin-bottom:14px;}
.contact-layout p{color:#a8b6d2;font-size:14.6px;line-height:1.85;}
.contact-points{display:grid;gap:10px;margin-top:22px;}
.contact-points li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:#c3cfe6;}
.check{
  flex:0 0 20px;width:20px;height:20px;border-radius:50%;background:rgba(47,109,246,.24);
  color:#9fc0ff;display:grid;place-items:center;font-size:12px;margin-top:2px;
}
.form-card{background:#fff;border-radius:calc(var(--radius) + 4px);padding:clamp(24px,3vw,34px);box-shadow:var(--shadow-lg);color:var(--text);}
.form-card h3{font-size:18px;margin-bottom:6px;}
.form-card .form-sub{font-size:13.5px;color:var(--muted);margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;font-weight:700;color:#33405a;margin-bottom:6px;}
.field input,.field select,.field textarea{
  width:100%;min-height:44px;padding:11px 14px;border-radius:var(--radius-sm);
  border:1px solid var(--border);background:#fafbfe;font-size:14px;color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{min-height:88px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 4px rgba(47,109,246,.12);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.form-note{font-size:12.4px;color:#8a94a6;margin:12px 0 0;line-height:1.7;}

/* ===== 页脚 ===== */
.site-footer{background:var(--ink);color:#93a2bd;padding:56px 0 26px;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.footer-brand .brand-mark{box-shadow:none;}
.footer-brand strong{color:#fff;font-size:17px;letter-spacing:.6px;}
.site-footer p{color:#8b9ab6;line-height:1.8;font-size:13.6px;}
.site-footer h4{color:#fff;font-size:14.5px;letter-spacing:1px;margin-bottom:16px;}
.footer-links{display:grid;gap:10px;}
.footer-links a{color:#93a2bd;font-size:13.8px;}
.footer-links a:hover{color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);margin-top:38px;padding-top:20px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:12.8px;color:#7d8caa;
}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .hero-stack{grid-template-columns:1fr 1fr;grid-template-areas:"main main" "a b";}
  .hero-main{grid-area:main;}
  .hero-side-a,.hero-side-b{transform:none;}
  .feature-layout,.expert-layout,.contact-layout{grid-template-columns:1fr;gap:28px;}
  .slot-grid,.metric-grid,.guard-grid{grid-template-columns:repeat(2,1fr);}
  .channel-grid,.step-grid,.review-grid,.topic-grid{grid-template-columns:repeat(2,1fr);}
  .news-layout{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .channel-extra{display:none;}
}
@media (max-width:768px){
  .brand-row{height:60px;}
  .brand-text small{display:none;}
  .brand-text strong{font-size:16.5px;}
  .desktop-nav{display:none;}
  .channel-row-wrap{display:none;}
  .nav-toggle{display:flex;}
  .hero-main .lead{font-size:14.6px;}
  .feature-grid{grid-template-columns:1fr;}
  .faq-grid{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .slot-grid,.metric-grid,.guard-grid,.channel-grid,.step-grid,.review-grid,.topic-grid{grid-template-columns:1fr;}
  .metric{border-left:0;border-top:2px solid rgba(47,109,246,.5);padding:16px 0 0;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
}
@media (max-width:520px){
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%;}
  .hero-stack{grid-template-columns:1fr;grid-template-areas:"main" "a" "b";}
  .news-item{padding:16px 16px;}
  .section{padding:44px 0;}
  .expert-card{flex-direction:column;}
  .expert-avatar{width:56px;height:56px;flex:0 0 56px;}
}

/* roulang page: article */
:root{
 --ink:#0d1526;
 --ink-soft:#18233a;
 --brand:#2f6df6;
 --brand-deep:#1d4fc4;
 --brand-soft:#eaf0ff;
 --accent:#eda33c;
 --accent-soft:#fdf3e2;
 --bg:#f5f7fb;
 --surface:#ffffff;
 --text:#1b2334;
 --muted:#5f6b7f;
 --border:#e4e9f3;
 --radius:14px;
 --radius-sm:10px;
 --shadow:0 6px 22px rgba(16,30,60,.07);
 --shadow-lg:0 18px 44px rgba(16,30,60,.16);
 --space:clamp(54px,6.5vw,92px);
 --container:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
 font-size:16px;line-height:1.78;color:var(--text);background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-deep);}
button{font-family:inherit;}
ul,ol{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.35;color:var(--ink);}
p{margin:0 0 14px;}
p:last-child{margin-bottom:0;}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid rgba(47,109,246,.42);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding-left:20px;padding-right:20px;}

/* ===== 按钮 ===== */
.btn-main,.btn-ghost,.btn-line{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 min-height:44px;padding:11px 26px;border-radius:var(--radius-sm);
 font-size:15px;font-weight:700;line-height:1.2;letter-spacing:.4px;
 border:1px solid transparent;cursor:pointer;
 transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-main{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(47,109,246,.26);}
.btn-main:hover{background:var(--brand-deep);color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px rgba(47,109,246,.34);}
.btn-main:active{transform:translateY(0);box-shadow:0 6px 14px rgba(47,109,246,.3);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.42);}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px);}
.btn-line{background:#fff;color:var(--ink);border-color:var(--border);box-shadow:var(--shadow);}
.btn-line:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.btn-sm{min-height:38px;padding:8px 18px;font-size:14px;}

/* ===== 顶部导航 ===== */
.site-header{
 position:sticky;top:0;z-index:1030;background:rgba(255,255,255,.96);
 backdrop-filter:saturate(180%) blur(10px);
 border-bottom:1px solid var(--border);transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:0 10px 26px rgba(16,30,60,.1);}
.brand-row-wrap{background:#fff;}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:18px;height:64px;}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink);min-height:44px;}
.brand:hover{color:var(--ink);}
.brand-mark{
 width:38px;height:38px;flex:0 0 38px;display:grid;place-items:center;
 border-radius:11px;background:linear-gradient(150deg,var(--brand),#6d9bff);
 color:#fff;font-weight:800;font-size:18px;box-shadow:0 6px 14px rgba(47,109,246,.3);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:18px;font-weight:800;letter-spacing:.6px;}
.brand-text small{font-size:11.5px;color:var(--muted);letter-spacing:1.2px;margin-top:3px;}
.brand-actions{display:flex;align-items:center;gap:10px;}
.channel-row-wrap{border-top:1px solid var(--border);background:linear-gradient(180deg,#fbfcff,#f6f8fd);}
.channel-row{display:flex;align-items:center;justify-content:space-between;gap:16px;height:50px;}
.channel-nav{display:flex;align-items:center;gap:4px;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;}
.channel-nav::-webkit-scrollbar{display:none;}
.channel{
 display:inline-flex;align-items:center;height:50px;padding:0 16px;
 font-size:14.5px;font-weight:600;color:var(--muted);
 border-bottom:2px solid transparent;white-space:nowrap;
 transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.channel:hover{color:var(--brand);background:rgba(47,109,246,.06);}
.channel.active{color:var(--brand);border-bottom-color:var(--brand);}
.channel-extra{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);white-space:nowrap;}
.dot-live{width:7px;height:7px;border-radius:50%;background:#33c46b;box-shadow:0 0 0 3px rgba(51,196,107,.16);}
.nav-toggle{
 width:42px;height:42px;border-radius:11px;border:1px solid var(--border);background:#fff;
 display:none;flex-direction:column;justify-content:center;align-items:center;gap:4px;padding:0;
 transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-toggle:hover{border-color:var(--brand);box-shadow:var(--shadow);}
.nav-toggle span{width:18px;height:2px;background:var(--ink);border-radius:2px;display:block;}
.mobile-channels{background:#fff;border-top:1px solid var(--border);padding:10px 20px 18px;}
.mobile-channels .channel{display:block;height:auto;padding:12px 14px;border-radius:10px;border:1px solid var(--border);margin-bottom:8px;font-size:15px;}
.mobile-channels .channel.active{background:var(--ink);color:#fff;border-color:var(--ink);}

/* ===== 通用板块 ===== */
.section{padding:var(--space) 0;}
.section-alt{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.section-head{max-width:780px;margin-bottom:34px;}
.section-head h2{font-size:clamp(22px,2.4vw,30px);letter-spacing:.4px;margin-bottom:12px;}
.section-head p{color:var(--muted);font-size:15px;margin:0;}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 font-size:12.5px;font-weight:700;letter-spacing:1.6px;color:var(--brand);margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--brand);border-radius:2px;}

/* ===== 文章头部 ===== */
.article-hero{
 position:relative;overflow:hidden;color:#fff;
 padding:clamp(30px,4vw,54px) 0 clamp(34px,4.4vw,58px);
 background:
 linear-gradient(135deg,rgba(11,18,32,.95) 0%,rgba(19,32,60,.91) 52%,rgba(23,44,88,.87) 100%),
 url('/assets/images/backpic/back-5.webp') center/cover no-repeat;
}
.article-hero::after{
 content:"";position:absolute;inset:auto -10% -62% 50%;height:400px;
 background:radial-gradient(circle,rgba(47,109,246,.4),transparent 68%);pointer-events:none;
}
.article-hero .container{position:relative;z-index:2;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(216,228,250,.7);margin-bottom:20px;}
.crumb a{color:rgba(216,228,250,.84);}
.crumb a:hover{color:#fff;}
.crumb .divider{opacity:.5;}
.crumb .current{color:#fff;font-weight:600;}
.article-hero h1{
 color:#fff;font-size:clamp(26px,3.3vw,40px);line-height:1.32;letter-spacing:.5px;max-width:920px;
}
.article-meta{
 display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:22px;
 font-size:13.5px;color:rgba(224,234,252,.82);
}
.article-meta .meta-tag{
 padding:4px 12px;border-radius:999px;font-weight:700;
 background:rgba(47,109,246,.24);border:1px solid rgba(107,152,255,.4);color:#cfdcff;
}
.article-meta .sep{width:1px;height:12px;background:rgba(255,255,255,.26);}

/* ===== 正文 ===== */
.article-panel{
 background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
 box-shadow:var(--shadow);padding:clamp(24px,3.4vw,46px);
}
.article-prose{font-size:15.8px;line-height:1.9;color:#26304a;}
.article-prose h2{
 font-size:clamp(20px,2.1vw,26px);margin:34px 0 14px;padding-left:14px;
 border-left:4px solid var(--brand);line-height:1.4;
}
.article-prose h2:first-child{margin-top:0;}
.article-prose h3{font-size:18px;margin:26px 0 10px;color:var(--ink-soft);}
.article-prose p{margin:0 0 16px;}
.article-prose ul{list-style:disc;padding-left:22px;margin:0 0 18px;}
.article-prose ol{list-style:decimal;padding-left:22px;margin:0 0 18px;}
.article-prose li{margin-bottom:8px;}
.article-prose img{border-radius:var(--radius-sm);margin:22px 0;box-shadow:var(--shadow);}
.article-prose blockquote{
 margin:24px 0;padding:16px 22px;background:var(--brand-soft);
 border-left:4px solid var(--brand);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--ink-soft);
}
.article-prose blockquote p:last-child{margin-bottom:0;}
.article-prose table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14.5px;}
.article-prose th,.article-prose td{border:1px solid var(--border);padding:10px 13px;text-align:left;}
.article-prose th{background:#f3f6fd;font-weight:700;color:var(--ink);}
.article-prose a{color:var(--brand);text-decoration:underline;}
.article-prose strong{color:var(--ink);}

/* ===== 术语卡 ===== */
.grid-4{display:grid;gap:20px;grid-template-columns:repeat(4,minmax(0,1fr));}
.grid-3{display:grid;gap:20px;grid-template-columns:repeat(3,minmax(0,1fr));}
.term-card{
 height:100%;padding:22px 20px;background:var(--surface);
 border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.term-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#c9d8fb;}
.term-card .term-no{
 display:inline-flex;align-items:center;justify-content:center;
 width:32px;height:32px;border-radius:9px;margin-bottom:14px;
 background:var(--brand-soft);color:var(--brand-deep);font-size:13.5px;font-weight:800;
}
.term-card h3{font-size:16.5px;margin-bottom:8px;}
.term-card p{font-size:14px;color:var(--muted);line-height:1.78;margin:0;}

/* ===== 图片图文板块 ===== */
.feature-split{
 display:grid;gap:clamp(24px,3.4vw,48px);grid-template-columns:1.05fr .95fr;align-items:center;
}
.feature-figure{
 border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-lg);
 border:1px solid var(--border);background:var(--surface);
}
.feature-figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11;}
.feature-body h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:14px;}
.feature-body p{color:var(--muted);font-size:15px;line-height:1.85;}
.check-list{display:grid;gap:12px;margin-top:20px;}
.check-list li{
 display:flex;gap:10px;align-items:flex-start;
 font-size:14.5px;color:var(--ink-soft);line-height:1.75;
}
.check-list .tick{
 flex:0 0 20px;width:20px;height:20px;border-radius:6px;margin-top:2px;
 background:var(--brand-soft);color:var(--brand-deep);
 display:grid;place-items:center;font-size:12px;font-weight:800;
}

/* ===== FAQ ===== */
.faq-list{display:grid;gap:14px;max-width:920px;}
.faq-item{
 background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);
 box-shadow:var(--shadow);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:#c9d8fb;}
.faq-item summary{
 list-style:none;cursor:pointer;padding:18px 22px;
 display:flex;align-items:center;justify-content:space-between;gap:14px;
 font-size:15.5px;font-weight:700;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
 content:"+";font-size:20px;line-height:1;font-weight:700;color:var(--brand);
 transition:transform .2s ease;
}
.faq-item[open] summary::after{content:"–";}
.faq-item .faq-body{padding:0 22px 20px;color:var(--muted);font-size:14.5px;line-height:1.85;}
.faq-item .faq-body p{margin:0 0 10px;}

/* ===== 行动区 ===== */
.cta-band{
 padding:clamp(30px,4.2vw,54px);border-radius:18px;color:#fff;
 background:linear-gradient(115deg,var(--ink) 0%,#1c3566 58%,#24509c 100%);
 box-shadow:var(--shadow-lg);
 display:flex;flex-wrap:wrap;gap:26px;align-items:center;justify-content:space-between;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);margin-bottom:10px;}
.cta-band p{color:rgba(226,235,252,.82);font-size:15px;margin:0;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ===== 空状态 ===== */
.empty-state{
 max-width:660px;margin:0 auto;text-align:center;background:var(--surface);
 border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);
 padding:clamp(30px,4vw,54px);
}
.empty-state h1{font-size:clamp(24px,3vw,32px);margin-bottom:14px;}
.empty-state p{color:var(--muted);margin-bottom:24px;}

/* ===== 页脚 ===== */
.site-footer{
 background:var(--ink);color:rgba(226,235,252,.78);
 padding:clamp(44px,5vw,70px) 0 0;border-top:1px solid rgba(255,255,255,.08);
}
.footer-grid{display:grid;gap:32px;grid-template-columns:1.5fr 1fr 1fr 1.2fr;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.footer-brand strong{color:#fff;font-size:17px;letter-spacing:.5px;}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(214,226,248,.72);margin:0;}
.site-footer h4{color:#fff;font-size:15px;margin:0 0 14px;font-weight:700;letter-spacing:.4px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:rgba(214,226,248,.76);font-size:14px;}
.footer-links a:hover{color:#fff;}
.footer-bottom{
 margin-top:36px;padding:18px 0;border-top:1px solid rgba(255,255,255,.1);
 display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
 font-size:13px;color:rgba(190,205,232,.6);
}

/* ===== 响应式 ===== */
@media (max-width:1199.98px){
 .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:991.98px){
 .desktop-nav{display:none;}
 .nav-toggle{display:flex;}
 .channel-extra{display:none;}
 .channel-row{height:auto;padding:8px 0;}
 .feature-split{grid-template-columns:1fr;}
 .feature-figure{order:-1;}
 .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
 .footer-grid{grid-template-columns:1fr 1fr;}
 .cta-band{flex-direction:column;align-items:flex-start;}
}
@media (max-width:767.98px){
 .brand-text small{display:none;}
 .article-hero{padding-top:26px;}
 .grid-3{grid-template-columns:1fr;}
}
@media (max-width:575.98px){
 .container{padding-left:16px;padding-right:16px;}
 .grid-4{grid-template-columns:1fr;}
 .brand-text strong{font-size:16.5px;}
 .btn-main,.btn-line,.btn-ghost{min-height:42px;padding:10px 20px;font-size:14.5px;}
 .article-panel{padding:20px 18px;}
 .faq-item summary{padding:16px 18px;font-size:15px;}
 .faq-item .faq-body{padding:0 18px 18px;}
 .footer-grid{grid-template-columns:1fr;}
 .footer-bottom{justify-content:flex-start;}
 .cta-actions{width:100%;}
 .cta-actions .btn-main,.cta-actions .btn-line{flex:1 1 auto;}
}

/* roulang page: category1 */
:root{
  --ink:#0d1526;
  --ink-soft:#18233a;
  --brand:#2f6df6;
  --brand-deep:#1d4fc4;
  --brand-soft:#eaf0ff;
  --accent:#eda33c;
  --accent-soft:#fdf3e2;
  --bg:#f5f7fb;
  --surface:#ffffff;
  --text:#1b2334;
  --muted:#5f6b7f;
  --border:#e4e9f3;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 6px 22px rgba(16,30,60,.07);
  --shadow-lg:0 18px 44px rgba(16,30,60,.16);
  --space:clamp(54px,6.5vw,92px);
  --container:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.78;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-deep);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.35;color:var(--ink);font-weight:800;}
p{margin:0 0 14px;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(47,109,246,.42);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding-left:20px;padding-right:20px;}

/* ===== 按钮 ===== */
.btn-main,.btn-ghost,.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 26px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:700;line-height:1.2;letter-spacing:.4px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-main{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(47,109,246,.26);}
.btn-main:hover{background:var(--brand-deep);color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px rgba(47,109,246,.34);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.42);}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px);}
.btn-line{background:#fff;color:var(--ink);border-color:var(--border);box-shadow:var(--shadow);}
.btn-line:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.btn-sm{min-height:38px;padding:8px 18px;font-size:14px;}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:1030;background:rgba(255,255,255,.96);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--border);transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:0 10px 26px rgba(16,30,60,.1);}
.brand-row-wrap{background:#fff;}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:18px;height:64px;}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink);min-height:44px;}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;display:grid;place-items:center;
  border-radius:11px;background:linear-gradient(150deg,var(--brand),#6d9bff);
  color:#fff;font-weight:800;font-size:18px;box-shadow:0 6px 14px rgba(47,109,246,.3);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:18px;font-weight:800;letter-spacing:.6px;}
.brand-text small{font-size:11.5px;color:var(--muted);letter-spacing:1.2px;margin-top:3px;}
.brand-actions{display:flex;align-items:center;gap:10px;}
.channel-row-wrap{border-top:1px solid var(--border);background:linear-gradient(180deg,#fbfcff,#f6f8fd);}
.channel-row{display:flex;align-items:center;justify-content:space-between;gap:16px;height:50px;}
.channel-nav{display:flex;align-items:center;gap:6px;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;}
.channel-nav::-webkit-scrollbar{display:none;}
.channel{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:9px;
  font-size:14.5px;font-weight:600;color:var(--ink-soft);white-space:nowrap;
  border:1px solid transparent;transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.channel:hover{background:#fff;color:var(--brand-deep);border-color:#d9e3f8;}
.channel.active{background:var(--ink);color:#fff;border-color:var(--ink);box-shadow:0 6px 14px rgba(13,21,38,.2);}
.channel-extra{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);white-space:nowrap;}
.dot-live{width:7px;height:7px;border-radius:50%;background:#25b57a;box-shadow:0 0 0 4px rgba(37,181,122,.16);}
.nav-toggle{
  width:42px;height:42px;border-radius:11px;border:1px solid var(--border);background:#fff;
  display:none;flex-direction:column;justify-content:center;align-items:center;gap:4px;padding:0;
}
.nav-toggle span{width:18px;height:2px;background:var(--ink);border-radius:2px;display:block;}
.mobile-channels{background:#fff;border-top:1px solid var(--border);padding:10px 20px 18px;}
.mobile-channels .channel{display:flex;height:auto;padding:12px 14px;border-radius:10px;border:1px solid var(--border);margin-bottom:8px;font-size:15px;}
.mobile-channels .channel.active{background:var(--ink);color:#fff;border-color:var(--ink);}

/* ===== Hero：帮助中心式居中 ===== */
.hero{
  position:relative;overflow:hidden;color:#fff;
  padding:clamp(34px,4.6vw,62px) 0 clamp(46px,5.4vw,74px);
  background:
    linear-gradient(135deg,rgba(9,16,30,.95) 0%,rgba(18,32,62,.92) 52%,rgba(27,52,102,.86) 100%),
    url('/assets/images/backpic/back-5.webp') center/cover no-repeat;
}
.hero::after{
  content:"";position:absolute;inset:-30% -10% auto 40%;height:460px;
  background:radial-gradient(circle,rgba(47,109,246,.36),transparent 68%);pointer-events:none;
}
.hero-inner{position:relative;z-index:2;max-width:860px;margin:0 auto;text-align:center;}
.hero-crumb{
  display:flex;justify-content:center;align-items:center;gap:8px;
  font-size:13px;color:rgba(198,212,240,.78);margin-bottom:20px;
}
.hero-crumb a{color:rgba(206,220,247,.9);}
.hero-crumb a:hover{color:#fff;}
.hero-crumb span.sep{opacity:.5;}
.pill{
  display:inline-flex;align-items:center;gap:8px;padding:6px 15px;border-radius:999px;
  font-size:12.5px;font-weight:700;letter-spacing:1.4px;
  background:rgba(47,109,246,.22);color:#c3d5ff;border:1px solid rgba(107,152,255,.36);
  margin-bottom:18px;
}
.hero h1{
  color:#fff;font-size:clamp(27px,3.4vw,42px);font-weight:800;line-height:1.3;letter-spacing:.5px;
  margin-bottom:16px;
}
.hero-lead{
  font-size:15.5px;line-height:1.9;color:rgba(230,238,252,.85);
  max-width:720px;margin:0 auto 28px;
}
.hero-search{
  display:flex;align-items:center;gap:8px;max-width:580px;margin:0 auto;
  padding:8px;border-radius:14px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.24);
  backdrop-filter:blur(6px);
}
.hero-search input[type="search"]{
  flex:1 1 auto;min-width:0;border:0;background:transparent;color:#fff;
  font-size:15px;padding:10px 14px;border-radius:10px;
}
.hero-search input[type="search"]::placeholder{color:rgba(219,230,250,.62);}
.hero-search input[type="search"]:focus{outline:2px solid rgba(140,174,255,.6);outline-offset:1px;background:rgba(255,255,255,.08);}
.hero-search .btn-main{flex:0 0 auto;min-height:42px;padding:10px 20px;}
.hero-chips{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:10px;margin-top:20px;}
.chips-label{font-size:12.5px;letter-spacing:1.4px;color:rgba(198,212,240,.7);margin-right:2px;}
.chip{
  display:inline-flex;align-items:center;min-height:34px;padding:5px 14px;border-radius:999px;
  font-size:13.5px;color:#dbe6fb;background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.18);transition:background .2s ease,transform .2s ease,border-color .2s ease;
}
.chip:hover{background:rgba(255,255,255,.18);color:#fff;transform:translateY(-2px);border-color:rgba(255,255,255,.34);}
.hero-facts{
  display:flex;flex-wrap:wrap;justify-content:center;gap:clamp(20px,5vw,64px);
  margin-top:34px;padding-top:26px;border-top:1px solid rgba(255,255,255,.16);
}
.hero-facts li{text-align:center;}
.hero-facts strong{display:block;font-size:23px;font-weight:800;color:#fff;letter-spacing:.5px;}
.hero-facts span{font-size:12.8px;color:rgba(204,218,245,.76);letter-spacing:.6px;}

/* ===== 通用板块 ===== */
.section{padding:var(--space) 0;}
.section-alt{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.section-head{margin-bottom:clamp(24px,3vw,40px);max-width:820px;}
.section-head.split-head{
  max-width:none;display:flex;align-items:flex-end;justify-content:space-between;gap:26px;flex-wrap:wrap;
}
.section-head h2{font-size:clamp(22px,2.4vw,30px);letter-spacing:.4px;margin-bottom:10px;}
.section-head .section-sub{font-size:15px;color:var(--muted);line-height:1.85;margin:0;max-width:640px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;font-size:12.5px;font-weight:700;
  letter-spacing:1.6px;color:var(--brand);margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);border-radius:2px;}
.eyebrow.light{color:#a9c3ff;}
.tag{
  display:inline-flex;align-items:center;padding:3px 11px;border-radius:999px;
  font-size:12px;font-weight:700;letter-spacing:.6px;
  background:var(--brand-soft);color:var(--brand-deep);
}
.tag.warm{background:var(--accent-soft);color:#a86b13;}

/* ===== 痛点卡 ===== */
.pain-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.pain-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:22px 20px;box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.pain-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#cddcf8;}
.pain-card .ico{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);margin-bottom:14px;
}
.pain-card .ico svg{width:20px;height:20px;}
.pain-card h3{font-size:16px;margin-bottom:8px;}
.pain-card p{font-size:14px;color:var(--muted);line-height:1.8;}

/* ===== 规则卡（带封面图） ===== */
.topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.topic-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.topic-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#cddcf8;}
.topic-media{aspect-ratio:16/10;overflow:hidden;background:var(--brand-soft);}
.topic-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.topic-card:hover .topic-media img{transform:scale(1.045);}
.topic-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:9px;}
.topic-body h3{font-size:16.5px;}
.topic-body p{font-size:13.8px;color:var(--muted);line-height:1.8;}
.topic-body .tag{align-self:flex-start;}

/* ===== 流程 ===== */
.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;}
.flow-item{
  position:relative;background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:22px 18px 20px;box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.flow-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#cddcf8;}
.flow-num{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:var(--ink);color:#fff;font-weight:800;font-size:14px;margin-bottom:14px;
}
.flow-item h3{font-size:15.5px;margin-bottom:8px;}
.flow-item p{font-size:13.6px;color:var(--muted);line-height:1.78;}

/* ===== 表格与数据 ===== */
.duo{display:grid;grid-template-columns:1.05fr .95fr;gap:26px;align-items:start;}
.panel{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow);
}
.panel h3{font-size:17px;margin-bottom:6px;}
.panel .panel-sub{font-size:13.6px;color:var(--muted);margin-bottom:16px;}
.table-wrap{overflow-x:auto;border-radius:var(--radius-sm);border:1px solid var(--border);}
.rule-table{width:100%;border-collapse:collapse;background:#fff;min-width:340px;}
.rule-table th{
  background:var(--ink);color:#fff;font-size:13.2px;font-weight:700;
  letter-spacing:.6px;padding:12px 16px;text-align:left;white-space:nowrap;
}
.rule-table td{padding:11px 16px;border-top:1px solid var(--border);font-size:14px;color:var(--ink-soft);}
.rule-table tbody tr:hover td{background:#f7f9fe;}
.rule-table td strong{color:var(--brand-deep);}
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:16px;}
.stat-card{
  background:linear-gradient(180deg,#fbfcff,#f4f7fe);
  border:1px solid var(--border);border-radius:var(--radius-sm);padding:14px 16px;
}
.stat-card strong{display:block;font-size:22px;font-weight:800;color:var(--brand-deep);letter-spacing:.4px;}
.stat-card span{font-size:12.6px;color:var(--muted);}
.note-line{
  margin-top:16px;padding:12px 14px;border-radius:var(--radius-sm);
  background:var(--accent-soft);border-left:3px solid var(--accent);
  font-size:13.6px;color:#7a5411;line-height:1.8;
}

/* ===== 术语 / 误区 ===== */
.term-list{display:grid;gap:12px;}
.term-list li{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-sm);
  padding:14px 16px;box-shadow:0 3px 12px rgba(16,30,60,.04);
  transition:border-color .2s ease,transform .2s ease;
}
.term-list li:hover{border-color:#cddcf8;transform:translateY(-2px);}
.term-list b{display:block;font-size:15px;color:var(--ink);margin-bottom:4px;}
.term-list span{font-size:13.8px;color:var(--muted);line-height:1.78;}
.myth-list{display:grid;gap:14px;}
.myth-item{
  background:#fff;border:1px solid var(--border);border-left:4px solid var(--accent);
  border-radius:var(--radius-sm);padding:16px 18px;
  transition:border-color .2s ease,transform .2s ease;
}
.myth-item:hover{transform:translateY(-2px);border-color:#cddcf8;border-left-color:var(--brand);}
.myth-item .myth-wrong{font-size:14.6px;font-weight:700;color:var(--ink);margin-bottom:6px;}
.myth-item .myth-right{font-size:13.8px;color:var(--muted);line-height:1.8;margin:0;}

/* ===== 适用人群 ===== */
.who-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.who-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:24px 22px;box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.who-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#cddcf8;}
.who-card .ico{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:var(--accent-soft);color:#a86b13;margin-bottom:16px;
}
.who-card .ico svg{width:21px;height:21px;}
.who-card h3{font-size:17px;margin-bottom:8px;}
.who-card p{font-size:14px;color:var(--muted);line-height:1.82;margin-bottom:12px;}
.who-card ul{display:grid;gap:6px;}
.who-card ul li{
  position:relative;padding-left:16px;font-size:13.6px;color:var(--ink-soft);
}
.who-card ul li::before{
  content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;
  background:var(--brand);opacity:.7;
}

/* ===== 资讯列表 ===== */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.post-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:20px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:10px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#cddcf8;}
.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:12.6px;color:var(--muted);}
.badge-cat{
  display:inline-flex;align-items:center;padding:2px 10px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-deep);font-weight:700;font-size:12px;
}
.post-card h3{font-size:16.4px;line-height:1.55;}
.post-card h3 a{color:var(--ink);}
.post-card h3 a:hover{color:var(--brand-deep);}
.post-card p{font-size:13.8px;color:var(--muted);line-height:1.8;margin:0;}
.post-more{
  margin-top:auto;font-size:13.6px;font-weight:700;color:var(--brand);
  display:inline-flex;align-items:center;gap:6px;
}
.post-more::after{content:"›";font-size:17px;line-height:1;transform:translateY(-1px);}
.post-more:hover{color:var(--brand-deep);}
.post-empty{
  grid-column:1 / -1;background:#fff;border:1px dashed var(--border);border-radius:var(--radius);
  padding:28px;text-align:center;color:var(--muted);font-size:14px;
}

/* ===== FAQ ===== */
.faq-list{display:grid;gap:12px;max-width:900px;}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-sm);
  box-shadow:0 3px 12px rgba(16,30,60,.04);overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:#cddcf8;box-shadow:var(--shadow);}
.faq-item summary{
  cursor:pointer;list-style:none;padding:16px 48px 16px 18px;position:relative;
  font-size:15.4px;font-weight:700;color:var(--ink);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"";position:absolute;right:20px;top:50%;width:9px;height:9px;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:translateY(-70%) rotate(45deg);transition:transform .2s ease;
}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(-135deg);}
.faq-item .faq-body{padding:0 18px 18px;font-size:14.2px;color:var(--muted);line-height:1.85;}
.faq-item .faq-body p{margin:0 0 10px;}
.faq-item .faq-body p:last-child{margin-bottom:0;}

/* ===== CTA ===== */
.cta-band{
  position:relative;overflow:hidden;color:#fff;
  background:
    linear-gradient(135deg,rgba(11,18,32,.96),rgba(24,42,80,.94)),
    url('/assets/images/backpic/back-1.gif') center/cover no-repeat;
  padding:clamp(42px,5vw,72px) 0;
}
.cta-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(26px,4vw,56px);align-items:center;}
.cta-copy h2{color:#fff;font-size:clamp(22px,2.6vw,31px);margin-bottom:14px;letter-spacing:.4px;}
.cta-copy p{color:rgba(226,235,252,.85);font-size:15px;line-height:1.9;margin-bottom:18px;}
.cta-points{display:flex;flex-wrap:wrap;gap:10px;}
.cta-points li{
  padding:6px 14px;border-radius:999px;font-size:13px;color:#d6e2fb;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
}
.cta-form{
  background:#fff;border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-lg);
  display:grid;gap:12px;
}
.cta-form label{font-size:13.4px;font-weight:700;color:var(--ink-soft);}
.cta-form input,.cta-form textarea{
  width:100%;border:1px solid var(--border);border-radius:var(--radius-sm);
  padding:11px 14px;font-size:14.4px;color:var(--text);background:#fbfcff;
  font-family:inherit;line-height:1.7;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.cta-form input:focus,.cta-form textarea:focus{
  outline:none;border-color:var(--brand);background:#fff;
  box-shadow:0 0 0 3px rgba(47,109,246,.16);
}
.cta-form textarea{resize:vertical;min-height:104px;}
.cta-form .btn-main{width:100%;}
.form-note{font-size:12.6px;color:var(--muted);line-height:1.7;margin:0;}

/* ===== 页脚 ===== */
.site-footer{background:#0b1222;color:#a7b4cb;padding:clamp(42px,5vw,64px) 0 0;}
.footer-grid{
  display:grid;grid-template-columns:1.5fr .85fr .85fr 1.2fr;gap:34px;
  padding-bottom:36px;
}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;margin-bottom:14px;font-size:17px;}
.footer-brand .brand-mark{width:34px;height:34px;flex:0 0 34px;font-size:16px;}
.site-footer h4{font-size:15px;color:#fff;margin:0 0 14px;font-weight:700;letter-spacing:.4px;}
.site-footer p{font-size:13.8px;line-height:1.85;color:#93a0b8;margin:0;}
.footer-links{display:grid;gap:9px;}
.footer-links a{color:#a7b4cb;font-size:14px;display:inline-block;transition:color .2s ease,transform .2s ease;}
.footer-links a:hover{color:#fff;transform:translateX(3px);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:18px 0;
  display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;
  font-size:13px;color:#7f8ca5;
}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .pain-grid{grid-template-columns:repeat(2,1fr);}
  .topic-grid{grid-template-columns:repeat(2,1fr);}
  .flow{grid-template-columns:repeat(3,1fr);}
  .who-grid{grid-template-columns:1fr;gap:16px;}
  .post-grid{grid-template-columns:repeat(2,1fr);}
  .duo{grid-template-columns:1fr;}
  .cta-inner{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
}
@media (max-width:991.98px){
  .desktop-nav{display:none;}
  .channel-extra{display:none;}
  .nav-toggle{display:flex;}
  .channel-row{justify-content:flex-start;}
}
@media (max-width:768px){
  body{font-size:15.5px;}
  .hero-search{flex-direction:column;align-items:stretch;padding:10px;}
  .hero-search .btn-main{width:100%;}
  .hero-facts{gap:22px;}
  .hero-facts li{flex:1 1 30%;}
  .topic-grid{grid-template-columns:1fr;}
  .flow{grid-template-columns:1fr 1fr;}
  .post-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .stat-row{grid-template-columns:1fr;}
  .section-head.split-head{align-items:flex-start;}
}
@media (max-width:520px){
  .container{padding-left:16px;padding-right:16px;}
  .brand-text small{display:none;}
  .pain-grid{grid-template-columns:1fr;}
  .flow{grid-template-columns:1fr;}
  .hero-facts li{flex:1 1 44%;}
  .btn-main,.btn-line,.btn-ghost{width:100%;}
  .hero-chips{justify-content:flex-start;}
  .cta-form{padding:18px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --ink:#0d1526;
  --ink-soft:#18233a;
  --brand:#2f6df6;
  --brand-deep:#1d4fc4;
  --brand-soft:#eaf0ff;
  --accent:#eda33c;
  --accent-soft:#fdf3e2;
  --bg:#f5f7fb;
  --surface:#ffffff;
  --text:#1b2334;
  --muted:#5f6b7f;
  --border:#e4e9f3;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 6px 22px rgba(16,30,60,.07);
  --shadow-lg:0 18px 44px rgba(16,30,60,.16);
  --space:clamp(54px,6.5vw,92px);
  --container:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.78;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-deep);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;line-height:1.35;letter-spacing:.2px;}
p{margin:0 0 14px;}
ul{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding-left:20px;padding-right:20px;}
:focus-visible{outline:3px solid rgba(47,109,246,.45);outline-offset:2px;border-radius:6px;}

/* ===== 按钮 ===== */
.btn-main,.btn-ghost,.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 26px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:700;line-height:1.2;letter-spacing:.4px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-main{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(47,109,246,.26);}
.btn-main:hover{background:var(--brand-deep);color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px rgba(47,109,246,.34);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.42);}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px);}
.btn-line{background:#fff;color:var(--ink);border-color:var(--border);box-shadow:var(--shadow);}
.btn-line:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.btn-sm{min-height:38px;padding:8px 18px;font-size:14px;}
.btn-block{width:100%;}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:1030;background:rgba(255,255,255,.96);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--border);transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:0 10px 26px rgba(16,30,60,.1);}
.brand-row-wrap{background:#fff;}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:18px;height:64px;}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink);min-height:44px;}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;display:grid;place-items:center;
  border-radius:11px;background:linear-gradient(150deg,var(--brand),#6d9bff);
  color:#fff;font-weight:800;font-size:18px;letter-spacing:0;box-shadow:0 6px 14px rgba(47,109,246,.3);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:18px;font-weight:800;letter-spacing:.6px;}
.brand-text small{font-size:11.5px;color:var(--muted);letter-spacing:1.2px;margin-top:3px;}
.brand-actions{display:flex;align-items:center;gap:10px;}
.channel-row-wrap{border-top:1px solid var(--border);background:linear-gradient(180deg,#fbfcff,#f6f8fd);}
.channel-row{display:flex;align-items:center;justify-content:space-between;gap:16px;height:50px;}
.channel-nav{display:flex;align-items:center;gap:6px;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;}
.channel-nav::-webkit-scrollbar{display:none;}
.channel{
  position:relative;display:inline-flex;align-items:center;height:50px;padding:0 16px;
  font-size:14.5px;font-weight:600;color:var(--muted);white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.channel:hover{color:var(--brand);}
.channel.active{color:var(--brand);font-weight:700;}
.channel.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2.5px;
  border-radius:3px;background:var(--brand);
}
.channel-extra{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);white-space:nowrap;}
.dot-live{width:7px;height:7px;border-radius:50%;background:#2ec48a;box-shadow:0 0 0 4px rgba(46,196,138,.16);display:inline-block;}
.nav-toggle{
  width:42px;height:42px;border-radius:11px;border:1px solid var(--border);background:#fff;
  display:none;flex-direction:column;justify-content:center;align-items:center;gap:4px;padding:0;
}
.nav-toggle span{width:18px;height:2px;background:var(--ink);border-radius:2px;display:block;}
.mobile-channels{background:#fff;border-top:1px solid var(--border);padding:10px 20px 18px;}
.mobile-channels .channel{
  display:block;height:auto;padding:12px 14px;border-radius:10px;border:1px solid var(--border);
  margin-bottom:8px;font-size:15px;color:var(--text);
}
.mobile-channels .channel.active{background:var(--ink);color:#fff;border-color:var(--ink);font-weight:700;}
.mobile-channels .channel.active::after{display:none;}

/* ===== 首屏 ===== */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  padding:clamp(40px,5vw,74px) 0 clamp(44px,5.4vw,80px);
  background:
    linear-gradient(122deg,rgba(10,18,34,.95) 0%,rgba(19,32,60,.92) 52%,rgba(24,46,92,.86) 100%),
    url('/assets/images/backpic/back-5.webp') center/cover no-repeat;
}
.page-hero::after{
  content:"";position:absolute;inset:auto -8% -70% 48%;height:460px;
  background:radial-gradient(circle,rgba(47,109,246,.38),transparent 66%);pointer-events:none;
}
.hero-grid{
  position:relative;z-index:2;display:grid;grid-template-columns:1.32fr .95fr;
  gap:clamp(28px,4vw,54px);align-items:center;
}
.pill{
  display:inline-flex;align-items:center;gap:8px;padding:6px 15px;border-radius:999px;
  font-size:12.5px;font-weight:700;letter-spacing:1.4px;
  background:rgba(47,109,246,.22);color:#c3d5ff;border:1px solid rgba(107,152,255,.36);
  margin-bottom:20px;
}
.page-hero h1{
  color:#fff;font-size:clamp(26px,3.2vw,40px);font-weight:800;line-height:1.3;
  letter-spacing:.5px;margin-bottom:18px;
}
.page-hero .lead{
  color:rgba(233,239,253,.86);font-size:15.5px;line-height:1.92;margin-bottom:24px;max-width:640px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin:0;}
.hero-tags li{
  padding:6px 14px;border-radius:999px;font-size:13px;color:#d5e1fb;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
}
.rec-card{
  position:relative;background:#fff;color:var(--text);border-radius:calc(var(--radius) + 4px);
  padding:30px 26px 26px;box-shadow:0 26px 60px rgba(4,10,24,.36);
  border:1px solid rgba(255,255,255,.7);
}
.rec-badge{
  position:absolute;top:-14px;left:26px;background:var(--accent);color:#3a2603;
  font-size:12.5px;font-weight:800;letter-spacing:1.2px;padding:5px 15px;border-radius:999px;
  box-shadow:0 8px 18px rgba(237,163,60,.36);
}
.rec-card h2{font-size:19px;margin:6px 0 6px;}
.rec-card .rec-sub{font-size:13.5px;color:var(--muted);margin-bottom:16px;}
.rec-list{display:flex;flex-direction:column;gap:11px;margin-bottom:22px;}
.rec-list li{position:relative;padding-left:24px;font-size:14.2px;line-height:1.7;color:var(--text);}
.rec-list li::before{
  content:"";position:absolute;left:0;top:8px;width:12px;height:12px;border-radius:50%;
  border:2px solid rgba(47,109,246,.35);background:var(--brand-soft);
}
.rec-list li b{color:var(--brand-deep);}

/* ===== 通用板块 ===== */
.section{padding:var(--space) 0;position:relative;}
.section-alt{background:#fff;}
.section-soft{background:linear-gradient(180deg,#eef3fd,#f7f9ff);}
.section-dark{background:linear-gradient(140deg,var(--ink) 0%,#1b2c4d 100%);color:#dfe8f8;}
.section-dark h2,.section-dark h3{color:#fff;}
.section-dark p{color:#a9bcd9;}
.sec-head{max-width:740px;margin-bottom:clamp(30px,3.4vw,44px);}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;font-size:12.5px;font-weight:800;
  letter-spacing:2px;color:var(--brand);margin-bottom:12px;
}
.eyebrow::before{content:"";width:26px;height:2px;border-radius:2px;background:var(--brand);}
.sec-head h2{font-size:clamp(22px,2.5vw,30px);margin-bottom:12px;}
.sec-head p{color:var(--muted);margin:0;font-size:15px;}
.section-dark .eyebrow{color:#8fb4ff;}
.section-dark .eyebrow::before{background:#8fb4ff;}
.section-dark .sec-head p{color:#a9bcd9;}

/* ===== 方案对比 ===== */
.plan-card{
  position:relative;display:flex;flex-direction:column;height:100%;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:28px 24px 24px;box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.plan-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#cddcff;}
.plan-card.is-on{
  border-color:var(--brand);background:linear-gradient(180deg,#f8fbff,#fff);
  box-shadow:0 20px 46px rgba(47,109,246,.18);
}
.plan-flag{
  position:absolute;top:-13px;right:22px;background:var(--brand);color:#fff;
  font-size:12px;font-weight:800;letter-spacing:1.2px;padding:5px 13px;border-radius:999px;
  box-shadow:0 8px 18px rgba(47,109,246,.32);
}
.plan-card h3{font-size:18.5px;margin-bottom:6px;}
.plan-card .plan-for{font-size:13.5px;color:var(--muted);margin-bottom:18px;min-height:44px;}
.plan-card .rec-list{margin-bottom:22px;flex:1;}
.tag{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;
  font-size:12.5px;font-weight:700;background:var(--brand-soft);color:var(--brand-deep);
  border:1px solid rgba(47,109,246,.16);
}
.tag-accent{background:var(--accent-soft);color:#8a5a08;border-color:rgba(237,163,60,.34);}

/* ===== 误区卡片 ===== */
.pain-card{
  height:100%;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:26px 24px;box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.pain-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#cddcff;}
.pain-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;background:var(--brand-soft);
  color:var(--brand-deep);font-weight:800;font-size:14px;margin-bottom:14px;
}
.pain-card h3{font-size:17px;margin-bottom:9px;}
.pain-card p{font-size:14.5px;color:var(--muted);margin-bottom:14px;}

/* ===== 图文区 ===== */
.figure-frame{
  border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-lg);
  border:1px solid var(--border);background:var(--brand-soft);
}
.figure-frame img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;}
.insight-row{
  display:flex;gap:16px;padding:20px 22px;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:14px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.insight-row:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#cddcff;}
.insight-row:last-child{margin-bottom:0;}
.insight-idx{
  flex:0 0 40px;width:40px;height:40px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(150deg,var(--brand),#7aa4ff);color:#fff;font-weight:800;font-size:15px;
  box-shadow:0 8px 16px rgba(47,109,246,.24);
}
.insight-row h3{font-size:16.5px;margin-bottom:6px;}
.insight-row p{font-size:14.2px;color:var(--muted);margin:0;}

/* ===== 步骤 ===== */
.step-card{
  position:relative;height:100%;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:26px 22px;box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#cddcff;}
.step-card .step-idx{
  font-size:13px;font-weight:800;letter-spacing:2px;color:var(--brand);margin-bottom:10px;display:block;
}
.step-card h3{font-size:17px;margin-bottom:9px;}
.step-card p{font-size:14.3px;color:var(--muted);margin:0;}

/* ===== 数据指标 ===== */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.stat-item{
  padding:26px 22px;border-radius:var(--radius);
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  transition:transform .2s ease,background .2s ease,border-color .2s ease;
}
.stat-item:hover{transform:translateY(-3px);background:rgba(255,255,255,.1);border-color:rgba(143,180,255,.4);}
.stat-num{font-size:clamp(26px,3vw,34px);font-weight:800;color:#fff;line-height:1.2;margin-bottom:6px;}
.stat-num span{font-size:16px;font-weight:700;color:#8fb4ff;margin-left:3px;}
.stat-item p{font-size:13.8px;color:#a9bcd9;margin:0;}

/* ===== 玩家反馈 ===== */
.quote-card{
  height:100%;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:26px 24px;box-shadow:var(--shadow);display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.quote-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#cddcff;}
.quote-card blockquote{
  margin:0 0 18px;font-size:14.8px;line-height:1.82;color:var(--text);flex:1;
}
.quote-who{display:flex;align-items:center;gap:12px;}
.avatar{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand-deep);font-weight:800;font-size:15px;flex:0 0 40px;
}
.quote-who strong{display:block;font-size:14.5px;color:var(--ink);}
.quote-who small{display:block;font-size:12.8px;color:var(--muted);}

/* ===== 适用人群 ===== */
.fit-list{display:flex;flex-direction:column;gap:12px;}
.fit-item{
  display:flex;gap:14px;align-items:flex-start;padding:18px 20px;background:#fff;
  border:1px solid var(--border);border-radius:var(--radius-sm);box-shadow:var(--shadow);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.fit-item:hover{transform:translateX(4px);border-color:#cddcff;box-shadow:var(--shadow-lg);}
.fit-dot{
  flex:0 0 10px;width:10px;height:10px;border-radius:50%;background:var(--brand);margin-top:9px;
  box-shadow:0 0 0 4px rgba(47,109,246,.14);
}
.fit-item p{margin:0;font-size:14.6px;color:var(--text);}

/* ===== FAQ ===== */
.faq-wrap{max-width:880px;}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-sm);
  padding:0 22px;margin-bottom:12px;box-shadow:var(--shadow);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:#cddcff;box-shadow:var(--shadow-lg);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:19px 32px 19px 0;position:relative;
  font-weight:700;color:var(--ink);font-size:15.6px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"";position:absolute;right:2px;top:50%;width:9px;height:9px;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:translateY(-70%) rotate(45deg);transition:transform .22s ease;
}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(-135deg);}
.faq-body{padding:0 0 20px;font-size:14.6px;color:var(--muted);line-height:1.85;}
.faq-body p:last-child{margin-bottom:0;}

/* ===== CTA 收口 ===== */
.cta-band{
  position:relative;overflow:hidden;color:#fff;border-radius:calc(var(--radius) + 6px);
  padding:clamp(34px,4vw,56px);
  background:
    linear-gradient(120deg,rgba(9,17,33,.94),rgba(21,40,80,.9)),
    url('/assets/images/backpic/back-7.webp') center/cover no-repeat;
  box-shadow:0 26px 60px rgba(10,24,52,.28);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);margin-bottom:14px;}
.cta-band p{color:rgba(226,236,253,.85);font-size:15px;max-width:660px;margin-bottom:24px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ===== 页脚 ===== */
.site-footer{background:var(--ink);color:#c7d2e6;padding:clamp(46px,5vw,68px) 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:34px;padding-bottom:38px;}
.site-footer h4{color:#fff;font-size:15.5px;margin-bottom:16px;letter-spacing:.6px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand strong{color:#fff;font-size:17px;letter-spacing:.6px;}
.site-footer p{font-size:13.8px;line-height:1.85;color:#9fb0cc;margin:0;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:#c7d2e6;font-size:14px;transition:color .2s ease,transform .2s ease;}
.footer-links a:hover{color:#fff;transform:translateX(3px);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:18px 0 26px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:#8fa1bf;
}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:30px;}
  .rec-card{max-width:560px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991.98px){
  .channel-row-wrap{display:none;}
  .desktop-nav{display:none;}
  .channel-extra{display:none;}
  .nav-toggle{display:flex;}
  .brand-row{height:64px;}
}
@media (max-width:767.98px){
  body{font-size:15.5px;}
  .section{padding:46px 0;}
  .sec-head{margin-bottom:26px;}
  .plan-card,.pain-card,.step-card,.quote-card{padding:22px 20px;}
  .insight-row{flex-direction:column;gap:12px;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px;}
  .cta-actions .btn-main,.cta-actions .btn-ghost{width:100%;}
}
@media (max-width:520px){
  .container{padding-left:16px;padding-right:16px;}
  .brand-text small{display:none;}
  .brand-text strong{font-size:16.5px;}
  .stat-grid{grid-template-columns:1fr;}
  .hero-tags li{font-size:12.4px;}
  .page-hero h1{font-size:24px;}
  .rec-card{padding:26px 20px 22px;}
  .btn-main,.btn-ghost,.btn-line{width:100%;}
  .brand-actions .btn-main{width:auto;}
}

/* roulang page: category3 */
:root{
 --ink:#0d1526;
 --ink-soft:#18233a;
 --brand:#2f6df6;
 --brand-deep:#1d4fc4;
 --brand-soft:#eaf0ff;
 --accent:#eda33c;
 --accent-soft:#fdf3e2;
 --bg:#f5f7fb;
 --surface:#ffffff;
 --text:#1b2334;
 --muted:#5f6b7f;
 --border:#e4e9f3;
 --radius:14px;
 --radius-sm:10px;
 --shadow:0 6px 22px rgba(16,30,60,.07);
 --shadow-lg:0 18px 44px rgba(16,30,60,.16);
 --space:clamp(54px,6.5vw,92px);
 --container:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
 font-size:16px;
 line-height:1.78;
 color:var(--text);
 background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-deep);}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding-left:20px;padding-right:20px;}
:focus-visible{outline:3px solid rgba(47,109,246,.42);outline-offset:3px;border-radius:6px;}

/* ===== 按钮 ===== */
.btn-main,.btn-ghost,.btn-line{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 min-height:44px;padding:11px 26px;border-radius:var(--radius-sm);
 font-size:15px;font-weight:700;line-height:1.2;letter-spacing:.4px;
 border:1px solid transparent;cursor:pointer;
 transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-main{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(47,109,246,.26);}
.btn-main:hover{background:var(--brand-deep);color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px rgba(47,109,246,.34);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.42);}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px);}
.btn-line{background:#fff;color:var(--ink);border-color:var(--border);box-shadow:var(--shadow);}
.btn-line:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.btn-sm{min-height:38px;padding:8px 18px;font-size:14px;}

/* ===== 顶部导航 ===== */
.site-header{
 position:sticky;top:0;z-index:1030;background:rgba(255,255,255,.96);
 backdrop-filter:saturate(180%) blur(10px);
 border-bottom:1px solid var(--border);transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:0 10px 26px rgba(16,30,60,.1);}
.brand-row-wrap{background:#fff;}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:18px;height:64px;}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink);min-height:44px;}
.brand:hover{color:var(--ink);}
.brand-mark{
 width:38px;height:38px;flex:0 0 38px;display:grid;place-items:center;
 border-radius:11px;background:linear-gradient(150deg,var(--brand),#6d9bff);
 color:#fff;font-weight:800;font-size:18px;box-shadow:0 6px 14px rgba(47,109,246,.3);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:18px;font-weight:800;letter-spacing:.6px;}
.brand-text small{font-size:11.5px;color:var(--muted);letter-spacing:1.2px;margin-top:3px;}
.brand-actions{display:flex;align-items:center;gap:10px;}
.channel-row-wrap{border-top:1px solid var(--border);background:linear-gradient(180deg,#fbfcff,#f6f8fd);}
.channel-row{display:flex;align-items:center;justify-content:space-between;gap:16px;height:50px;}
.channel-nav{display:flex;align-items:stretch;gap:6px;height:50px;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;}
.channel-nav::-webkit-scrollbar{display:none;}
.channel{
 position:relative;display:inline-flex;align-items:center;height:100%;padding:0 16px;
 font-size:15px;font-weight:600;color:var(--ink-soft);white-space:nowrap;
 transition:color .2s ease,background .2s ease;
}
.channel:hover{color:var(--brand);background:rgba(47,109,246,.06);}
.channel.active{color:var(--brand);}
.channel.active::after{
 content:"";position:absolute;left:16px;right:16px;bottom:0;height:3px;
 border-radius:3px 3px 0 0;background:var(--brand);
}
.channel-extra{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);white-space:nowrap;}
.dot-live{width:8px;height:8px;border-radius:50%;background:#2fbf7a;box-shadow:0 0 0 4px rgba(47,191,122,.16);display:inline-block;}
.nav-toggle{
 width:42px;height:42px;border-radius:11px;border:1px solid var(--border);background:#fff;
 display:none;flex-direction:column;justify-content:center;align-items:center;gap:4px;padding:0;
}
.nav-toggle span{width:18px;height:2px;background:var(--ink);border-radius:2px;display:block;}
.mobile-channels{background:#fff;border-top:1px solid var(--border);padding:10px 20px 18px;}
.mobile-channels .channel{display:block;height:auto;padding:12px 14px;border-radius:10px;border:1px solid var(--border);margin-bottom:8px;font-size:15px;}
.mobile-channels .channel::after{display:none;}
.mobile-channels .channel.active{background:var(--ink);color:#fff;border-color:var(--ink);}

/* ===== 分类页 Hero ===== */
.page-hero{
 position:relative;overflow:hidden;color:#fff;
 padding:clamp(38px,4.8vw,68px) 0 clamp(44px,5.4vw,78px);
 background:
  linear-gradient(135deg,rgba(11,18,32,.95) 0%,rgba(19,32,60,.92) 50%,rgba(24,45,90,.88) 100%),
  url('/assets/images/backpic/back-5.webp') center/cover no-repeat;
}
.page-hero::after{
 content:"";position:absolute;inset:auto -12% -55% 48%;height:420px;
 background:radial-gradient(circle,rgba(47,109,246,.38),transparent 68%);pointer-events:none;
}
.crumb{
 display:flex;align-items:center;gap:8px;flex-wrap:wrap;
 font-size:13px;color:rgba(214,226,250,.72);margin-bottom:18px;position:relative;z-index:2;
}
.crumb a{color:rgba(214,226,250,.86);}
.crumb a:hover{color:#fff;}
.crumb i{font-size:12px;}
.hero-grid{
 position:relative;z-index:2;display:grid;grid-template-columns:1.42fr .92fr;gap:34px;align-items:center;
}
.hero-copy .pill{
 display:inline-flex;align-items:center;gap:8px;padding:6px 15px;border-radius:999px;
 font-size:12.5px;font-weight:700;letter-spacing:1.4px;
 background:rgba(47,109,246,.22);color:#c3d5ff;border:1px solid rgba(107,152,255,.36);
 margin-bottom:20px;
}
.hero-copy h1{
 font-size:clamp(26px,3.3vw,40px);font-weight:800;line-height:1.3;letter-spacing:.5px;color:#fff;
 margin-bottom:18px;
}
.hero-copy h1 em{font-style:normal;color:#9dbcff;}
.hero-copy .lead{
 font-size:15.5px;line-height:1.9;color:rgba(233,239,253,.86);margin-bottom:26px;max-width:640px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:24px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;}
.hero-tags li{
 padding:6px 14px;border-radius:999px;font-size:13px;color:#d5e1fb;
 background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
}
.hero-panel{
 background:#fff;color:var(--text);border-radius:calc(var(--radius) + 4px);
 padding:22px;box-shadow:var(--shadow-lg);border:1px solid rgba(255,255,255,.7);
}
.hero-panel h2{font-size:15px;font-weight:800;letter-spacing:.6px;margin-bottom:4px;color:var(--ink);}
.hero-panel .panel-note{font-size:12.5px;color:var(--muted);margin-bottom:16px;}
.dim-row{
 display:flex;align-items:flex-start;gap:12px;padding:11px 0;
 border-top:1px dashed var(--border);
}
.dim-row:first-of-type{border-top:none;}
.dim-row i{
 flex:0 0 34px;width:34px;height:34px;display:grid;place-items:center;border-radius:10px;
 background:var(--brand-soft);color:var(--brand);font-size:16px;
}
.dim-row strong{display:block;font-size:14px;color:var(--ink);}
.dim-row span{display:block;font-size:12.5px;color:var(--muted);line-height:1.6;}

/* ===== 通用板块 ===== */
.section{padding:var(--space) 0;}
.section-alt{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.section-ink{
 background:linear-gradient(160deg,#0e1729,#16233c 62%,#1a2c4e);
 color:#e8eefb;border-top:none;border-bottom:none;
}
.section-ink .sec-head h2{color:#fff;}
.section-ink .sec-head p{color:rgba(214,226,250,.76);}
.sec-head{max-width:760px;margin-bottom:36px;}
.sec-head .kicker{
 display:inline-flex;align-items:center;gap:8px;
 font-size:12.5px;font-weight:800;letter-spacing:1.6px;color:var(--brand);
 margin-bottom:12px;
}
.sec-head .kicker::before{content:"";width:26px;height:3px;border-radius:3px;background:var(--accent);display:inline-block;}
.sec-head h2{font-size:clamp(22px,2.5vw,30px);font-weight:800;line-height:1.36;letter-spacing:.4px;color:var(--ink);}
.sec-head p{margin-top:12px;font-size:15px;line-height:1.85;color:var(--muted);}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-head.center .kicker{justify-content:center;}

/* ===== 痛点卡 ===== */
.pain-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.pain-card{
 background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
 padding:22px 20px;box-shadow:var(--shadow);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.pain-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#c9d8f7;}
.pain-card .icon{
 width:40px;height:40px;border-radius:11px;display:grid;place-items:center;
 background:var(--accent-soft);color:#b9781c;font-size:18px;margin-bottom:14px;
}
.pain-card h3{font-size:16px;font-weight:800;color:var(--ink);margin-bottom:8px;}
.pain-card p{font-size:14px;line-height:1.8;color:var(--muted);}

/* ===== 评测体系 ===== */
.model-grid{display:grid;grid-template-columns:1.02fr 1fr;gap:38px;align-items:center;}
.model-figure{
 border-radius:calc(var(--radius) + 2px);overflow:hidden;position:relative;
 box-shadow:var(--shadow-lg);border:1px solid var(--border);
}
.model-figure img{width:100%;height:100%;aspect-ratio:16/11;object-fit:cover;}
.model-figure figcaption{
 position:absolute;left:0;right:0;bottom:0;padding:16px 18px;
 background:linear-gradient(180deg,rgba(9,16,30,0),rgba(9,16,30,.82));
 color:#fff;font-size:13.5px;line-height:1.6;
}
.model-list{display:grid;gap:14px;}
.model-item{
 display:flex;gap:14px;padding:16px 18px;background:var(--surface);
 border:1px solid var(--border);border-radius:var(--radius-sm);box-shadow:var(--shadow);
 transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.model-item:hover{transform:translateY(-3px);border-color:#c9d8f7;box-shadow:var(--shadow-lg);}
.model-item .num{
 flex:0 0 34px;width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
 background:var(--brand);color:#fff;font-weight:800;font-size:14px;box-shadow:0 6px 14px rgba(47,109,246,.28);
}
.model-item h3{font-size:15.5px;font-weight:800;color:var(--ink);margin-bottom:4px;}
.model-item p{font-size:13.5px;line-height:1.75;color:var(--muted);}

/* ===== 步骤 ===== */
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.step-card{
 position:relative;background:var(--surface);border:1px solid var(--border);
 border-radius:var(--radius);padding:24px 20px 22px;box-shadow:var(--shadow);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#c9d8f7;}
.step-card .step-no{
 display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:800;
 letter-spacing:1.4px;color:var(--brand);margin-bottom:12px;
}
.step-card .step-no::after{content:"";width:22px;height:2px;border-radius:2px;background:var(--brand-soft);}
.step-card h3{font-size:16px;font-weight:800;color:var(--ink);margin-bottom:8px;}
.step-card p{font-size:13.8px;line-height:1.8;color:var(--muted);}

/* ===== 数据条 ===== */
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:6px;}
.metric{
 background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);
 border-radius:var(--radius);padding:24px 20px;text-align:left;
 transition:transform .2s ease,background .2s ease,border-color .2s ease;
}
.metric:hover{transform:translateY(-3px);background:rgba(255,255,255,.09);border-color:rgba(140,175,255,.4);}
.metric b{display:block;font-size:clamp(26px,3vw,34px);font-weight:800;color:#fff;line-height:1.1;letter-spacing:.5px;}
.metric b span{font-size:15px;font-weight:700;color:#9dbcff;margin-left:3px;}
.metric small{display:block;margin-top:8px;font-size:13px;color:rgba(206,220,246,.78);line-height:1.6;}

/* ===== 证言 ===== */
.quote-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.quote-card{
 background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
 padding:26px 24px;box-shadow:var(--shadow);position:relative;
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.quote-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#c9d8f7;}
.quote-card .qmark{font-size:26px;color:var(--brand);opacity:.5;line-height:1;margin-bottom:10px;display:block;}
.quote-card p{font-size:15px;line-height:1.85;color:var(--text);margin-bottom:18px;}
.quote-meta{display:flex;align-items:center;gap:12px;}
.avatar{
 width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
 background:var(--brand-soft);color:var(--brand-deep);font-weight:800;font-size:15px;
}
.quote-meta strong{display:block;font-size:14px;color:var(--ink);}
.quote-meta span{display:block;font-size:12.5px;color:var(--muted);}

/* ===== 适用人群 ===== */
.fit-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.fit-card{
 background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
 padding:26px 22px;box-shadow:var(--shadow);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.fit-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#c9d8f7;}
.fit-card .fit-tag{
 display:inline-block;padding:4px 12px;border-radius:999px;font-size:12px;font-weight:700;
 background:var(--brand-soft);color:var(--brand-deep);margin-bottom:14px;letter-spacing:.6px;
}
.fit-card h3{font-size:17px;font-weight:800;color:var(--ink);margin-bottom:10px;}
.fit-card p{font-size:14px;line-height:1.85;color:var(--muted);}
.fit-card ul{margin-top:14px;display:grid;gap:8px;}
.fit-card ul li{position:relative;padding-left:18px;font-size:13.5px;color:var(--ink-soft);line-height:1.7;}
.fit-card ul li::before{
 content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:2px;background:var(--accent);
}

/* ===== 频道矩阵 ===== */
.matrix-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.matrix-card{
 display:block;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
 padding:24px 22px;box-shadow:var(--shadow);color:var(--text);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.matrix-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--brand);color:var(--text);}
.matrix-card .m-top{display:flex;align-items:center;gap:12px;margin-bottom:12px;}
.matrix-card .m-top i{
 width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
 background:var(--brand-soft);color:var(--brand);font-size:17px;
}
.matrix-card h3{font-size:16.5px;font-weight:800;color:var(--ink);}
.matrix-card p{font-size:13.8px;line-height:1.8;color:var(--muted);margin-bottom:14px;}
.matrix-card .m-link{font-size:13.5px;font-weight:700;color:var(--brand);display:inline-flex;align-items:center;gap:6px;}
.matrix-card.current{border-color:var(--brand);box-shadow:0 12px 30px rgba(47,109,246,.16);}

/* ===== FAQ ===== */
.faq-wrap{display:grid;gap:12px;max-width:900px;}
.faq-item{
 background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
 box-shadow:var(--shadow);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:#c9d8f7;box-shadow:var(--shadow-lg);}
.faq-item summary{
 list-style:none;cursor:pointer;padding:18px 22px;display:flex;align-items:center;justify-content:space-between;gap:16px;
 font-size:15.5px;font-weight:800;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
 content:"\F64D";font-family:"bootstrap-icons";font-size:14px;color:var(--brand);
 transition:transform .2s ease;flex:0 0 auto;
}
.faq-item[open] summary::after{transform:rotate(180deg);}
.faq-item .faq-body{padding:0 22px 20px;font-size:14.5px;line-height:1.85;color:var(--muted);}

/* ===== 收口 CTA ===== */
.cta-band{
 position:relative;overflow:hidden;border-radius:calc(var(--radius) + 6px);
 padding:clamp(28px,3.6vw,46px);
 background:
  linear-gradient(120deg,rgba(16,26,46,.94),rgba(29,52,98,.9)),
  url('/assets/images/backpic/back-8.webp') center/cover no-repeat;
 color:#fff;box-shadow:var(--shadow-lg);
 display:grid;grid-template-columns:1.4fr auto;gap:26px;align-items:center;
}
.cta-band h2{font-size:clamp(21px,2.4vw,27px);font-weight:800;line-height:1.4;margin-bottom:10px;color:#fff;}
.cta-band p{font-size:14.5px;line-height:1.85;color:rgba(226,235,251,.84);max-width:660px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ===== 页脚 ===== */
.site-footer{background:#0b1220;color:rgba(214,226,250,.78);padding:var(--space) 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr .8fr .8fr 1.1fr;gap:34px;padding-bottom:38px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px;color:#fff;}
.footer-brand strong{font-size:17px;font-weight:800;letter-spacing:.5px;}
.site-footer p{font-size:13.5px;line-height:1.85;color:rgba(198,212,238,.76);}
.site-footer h4{font-size:14px;font-weight:800;color:#fff;letter-spacing:.8px;margin-bottom:16px;}
.footer-links{display:grid;gap:10px;}
.footer-links a{font-size:13.5px;color:rgba(198,212,238,.78);transition:color .2s ease,padding-left .2s ease;}
.footer-links a:hover{color:#fff;padding-left:4px;}
.footer-bottom{
 border-top:1px solid rgba(255,255,255,.1);padding:18px 0 22px;
 display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
 font-size:13px;color:rgba(170,188,220,.7);
}

/* ===== 响应式 ===== */
@media (max-width:1024px){
 .hero-grid{grid-template-columns:1fr;gap:26px;}
 .pain-grid,.step-grid,.metric-grid{grid-template-columns:repeat(2,1fr);}
 .model-grid{grid-template-columns:1fr;gap:26px;}
 .fit-grid,.matrix-grid{grid-template-columns:repeat(2,1fr);}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
 .cta-band{grid-template-columns:1fr;}
 .channel-extra{display:none;}
}
@media (max-width:768px){
 .nav-toggle{display:flex;}
 .desktop-nav{display:none;}
 .channel-row{height:auto;padding:8px 0;}
 .brand-row{height:62px;}
 .brand-text small{display:none;}
 .quote-grid{grid-template-columns:1fr;}
 .pain-grid,.step-grid,.metric-grid{grid-template-columns:1fr;}
 .fit-grid,.matrix-grid{grid-template-columns:1fr;}
 .footer-grid{grid-template-columns:1fr;gap:24px;}
 .sec-head{margin-bottom:26px;}
 .hero-copy .lead{font-size:14.8px;}
 .cta-actions .btn-main,.cta-actions .btn-ghost{width:100%;}
}
@media (max-width:520px){
 .container{padding-left:16px;padding-right:16px;}
 .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%;}
 .btn-main,.btn-ghost,.btn-line{min-height:46px;}
 .footer-bottom{justify-content:flex-start;}
 .hero-panel{padding:18px;}
}

/* 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}