/* roulang page: index */
:root{
  --brand:#3b5bdb;
  --brand-dark:#2a44ab;
  --brand-soft:#eaefff;
  --mint:#0ba37f;
  --mint-soft:#e2f7f1;
  --amber:#e8a020;
  --amber-soft:#fdf3e0;
  --ink:#0c1322;
  --ink-2:#111b2f;
  --text:#1e293b;
  --muted:#64748b;
  --muted-2:#94a3b8;
  --line:#e3e8f1;
  --bg:#f5f7fc;
  --surface:#ffffff;
  --radius-xl:18px;
  --radius-lg:14px;
  --radius-md:10px;
  --radius-sm:8px;
  --shadow-1:0 1px 2px rgba(15,23,42,.05),0 8px 22px -14px rgba(15,23,42,.28);
  --shadow-2:0 16px 40px -18px rgba(15,23,42,.42);
  --container:1180px;
  --ease:.22s cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font:inherit;}
::selection{background:var(--brand);color:#fff;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease),background var(--ease);
}
.site-header.scrolled{box-shadow:0 8px 24px -18px rgba(15,23,42,.6);}
.header-inner{display:flex;align-items:center;gap:28px;height:64px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(140deg,var(--brand),#6a83f0);
  color:#fff;font-size:16px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 14px -8px rgba(59,91,219,.9);
}
.logo-text{font-size:17px;font-weight:700;letter-spacing:.4px;color:var(--ink);}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  padding:8px 14px;border-radius:var(--radius-sm);
  font-size:15px;color:#475569;font-weight:500;
  transition:color var(--ease),background var(--ease);
  min-height:40px;display:inline-flex;align-items:center;
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft);}
.nav-link.active{color:var(--brand);background:var(--brand-soft);font-weight:600;}
.header-actions{display:flex;align-items:center;gap:10px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:42px;padding:0 20px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;letter-spacing:.2px;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px -14px rgba(59,91,219,.95);}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 16px 26px -14px rgba(42,68,171,.9);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.45);}
.btn-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff;transform:translateY(-2px);}
.btn-outline{background:#fff;color:var(--brand);border:1px solid rgba(59,91,219,.35);}
.btn-outline:hover{background:var(--brand-soft);border-color:var(--brand);transform:translateY(-2px);}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);transition:transform var(--ease);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;color:#fff;background:var(--ink);}
.hero-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  opacity:.42;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(12,19,34,.96) 12%,rgba(12,19,34,.78) 52%,rgba(17,27,47,.6) 100%);
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.15fr .85fr;gap:52px;
  padding-top:72px;padding-bottom:76px;align-items:center;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(59,91,219,.22);border:1px solid rgba(122,146,255,.4);
  color:#c9d5ff;font-size:13px;font-weight:600;letter-spacing:.4px;
}
.hero-badge::before{content:"";width:7px;height:7px;border-radius:50%;background:#5df0b8;box-shadow:0 0 0 4px rgba(93,240,184,.18);}
.hero h1{
  margin-top:18px;
  font-size:40px;line-height:1.28;letter-spacing:-.5px;font-weight:800;
}
.hero-sub{margin-top:14px;font-size:17px;color:#a9b6d4;font-weight:500;}
.hero-lead{margin-top:18px;font-size:15.5px;line-height:1.85;color:#c3cde2;max-width:600px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.tag{
  display:inline-flex;align-items:center;
  padding:5px 13px;border-radius:999px;
  font-size:13px;font-weight:600;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);color:#d7dff0;
}
.tag-light{background:var(--brand-soft);color:var(--brand-dark);border-color:rgba(59,91,219,.16);}
.tag-mint{background:var(--mint-soft);color:#07775c;border-color:rgba(11,163,127,.2);}

/* 直播卡 */
.live-card{
  background:rgba(255,255,255,.97);
  border-radius:var(--radius-xl);
  box-shadow:0 30px 60px -30px rgba(4,10,25,.85);
  overflow:hidden;color:var(--text);
  border:1px solid rgba(255,255,255,.5);
}
.live-cover{position:relative;aspect-ratio:16/9;overflow:hidden;}
.live-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.live-card:hover .live-cover img{transform:scale(1.04);}
.live-flag{
  position:absolute;top:12px;left:12px;
  padding:4px 11px;border-radius:999px;
  background:rgba(11,163,127,.95);color:#fff;
  font-size:12px;font-weight:700;letter-spacing:.5px;
}
.live-body{padding:20px 22px 22px;}
.live-body h2{font-size:18px;font-weight:700;color:var(--ink);}
.live-body>p{margin-top:6px;font-size:14px;color:var(--muted);}
.countdown{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:16px 0 18px;}
.cd-item{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:9px 4px;text-align:center;
}
.cd-item b{display:block;font-size:20px;font-weight:800;color:var(--ink);line-height:1.2;font-variant-numeric:tabular-nums;}
.cd-item small{font-size:11.5px;color:var(--muted);letter-spacing:.5px;}

/* ---------- 通用 section ---------- */
.section{padding:76px 0;}
.section--tight{padding:58px 0;}
.section--alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section--dark{background:var(--ink);color:#e6ecf7;}
.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:8px;
  font-size:13px;font-weight:700;letter-spacing:1.2px;
  color:var(--brand);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--brand);}
.section--dark .eyebrow{color:#8fa6ff;}
.section--dark .eyebrow::before{background:#8fa6ff;}
.section-title{margin-top:12px;font-size:30px;line-height:1.36;font-weight:800;color:var(--ink);letter-spacing:-.3px;}
.section--dark .section-title{color:#fff;}
.section-desc{margin-top:14px;font-size:15.5px;line-height:1.85;color:var(--muted);}
.section--dark .section-desc{color:#a7b4cc;}

/* ---------- 网格 ---------- */
.grid{display:grid;gap:22px;}
.grid-2{grid-template-columns:repeat(2,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}

/* ---------- 指标看板 ---------- */
.stats-strip{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-xl);
  box-shadow:var(--shadow-1);
  display:grid;grid-template-columns:repeat(4,1fr);
  overflow:hidden;
}
.stat-cell{padding:26px 22px;border-right:1px solid var(--line);}
.stat-cell:last-child{border-right:0;}
.stat-cell b{display:block;font-size:28px;font-weight:800;color:var(--ink);letter-spacing:-.6px;}
.stat-cell b em{font-style:normal;font-size:16px;color:var(--brand);margin-left:3px;font-weight:700;}
.stat-cell span{display:block;margin-top:6px;font-size:13.5px;color:var(--muted);}

/* ---------- 卡片 ---------- */
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  padding:24px 22px;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#cfd9ee;}
.card h3{margin-top:14px;font-size:17.5px;font-weight:700;color:var(--ink);line-height:1.5;}
.card p{margin-top:10px;font-size:14.5px;color:var(--muted);line-height:1.8;}
.icon-box{
  width:44px;height:44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand);
}
.icon-box svg{width:22px;height:22px;}
.icon-box.mint{background:var(--mint-soft);color:#07775c;}
.icon-box.amber{background:var(--amber-soft);color:#a8720f;}

/* 分类入口 */
.entry-card{
  position:relative;display:block;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px 24px 24px;box-shadow:var(--shadow-1);overflow:hidden;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.entry-card::before{
  content:"";position:absolute;inset:0 auto 0 0;width:4px;
  background:linear-gradient(180deg,var(--brand),#7f97f5);opacity:.9;
}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#cfd9ee;}
.entry-card h3{font-size:19px;font-weight:700;color:var(--ink);}
.entry-card p{margin-top:10px;font-size:14.5px;color:var(--muted);line-height:1.8;}
.entry-link{
  display:inline-flex;align-items:center;gap:6px;margin-top:16px;
  font-size:14px;font-weight:700;color:var(--brand);
}
.entry-card:hover .entry-link{gap:10px;}
.entry-card .entry-link{transition:gap var(--ease);}

/* 精选推荐 */
.pick-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.pick-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#cfd9ee;}
.pick-card figure{aspect-ratio:16/10;overflow:hidden;background:var(--bg);}
.pick-card figure img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.pick-card:hover figure img{transform:scale(1.05);}
.pick-body{padding:20px 20px 22px;}
.pick-body h3{font-size:16.5px;font-weight:700;color:var(--ink);line-height:1.55;}
.pick-body p{margin-top:9px;font-size:14px;color:var(--muted);line-height:1.78;}
.pick-meta{display:flex;align-items:center;gap:8px;margin-bottom:10px;}

/* 评价墙 */
.score-box{
  background:var(--ink);color:#fff;border-radius:var(--radius-lg);
  padding:26px 24px;display:flex;flex-direction:column;justify-content:center;
}
.score-box b{font-size:44px;font-weight:800;letter-spacing:-1.5px;line-height:1;}
.score-box b small{font-size:16px;color:#8fa6ff;font-weight:600;}
.score-box span{margin-top:10px;font-size:13.5px;color:#a7b4cc;line-height:1.7;}
.score-bars{margin-top:18px;display:grid;gap:9px;}
.score-bar{display:flex;align-items:center;gap:10px;font-size:12.5px;color:#a7b4cc;}
.score-bar i{flex:1;height:6px;border-radius:4px;background:rgba(255,255,255,.12);overflow:hidden;font-style:normal;}
.score-bar i::after{content:"";display:block;height:100%;width:var(--w,80%);border-radius:4px;background:linear-gradient(90deg,#5a7bff,#5df0b8);}
.review-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:20px 22px;box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.review-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#cfd9ee;}
.review-top{display:flex;align-items:center;gap:10px;}
.avatar{
  width:36px;height:36px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;
}
.review-top b{font-size:14.5px;color:var(--ink);}
.review-top span{font-size:12.5px;color:var(--muted-2);margin-left:auto;}
.review-item p{margin-top:12px;font-size:14.5px;color:#475569;line-height:1.82;}
.stars{color:var(--amber);font-size:13px;letter-spacing:2px;margin-top:10px;}

/* 保障徽章条 */
.promise-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
}
.promise-item{
  display:flex;gap:14px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:20px;box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease);
}
.promise-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.promise-item h3{font-size:15.5px;color:var(--ink);font-weight:700;}
.promise-item p{margin-top:6px;font-size:13.5px;color:var(--muted);line-height:1.75;}

/* 流程步骤 */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;counter-reset:step;}
.step{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:28px 24px 24px;box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.step::before{
  counter-increment:step;content:"0" counter(step);
  position:absolute;top:-14px;left:22px;
  background:var(--brand);color:#fff;font-size:12.5px;font-weight:800;
  padding:4px 12px;border-radius:999px;letter-spacing:1px;
  box-shadow:0 8px 16px -10px rgba(59,91,219,.95);
}
.step h3{font-size:17px;color:var(--ink);font-weight:700;}
.step p{margin-top:10px;font-size:14.5px;color:var(--muted);line-height:1.8;}

/* 进度 */
.progress-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-xl);
  padding:30px 28px;box-shadow:var(--shadow-1);
}
.progress-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;}
.progress-head b{font-size:26px;color:var(--ink);font-weight:800;letter-spacing:-.5px;}
.progress-head span{font-size:14px;color:var(--muted);}
.bar{height:10px;border-radius:999px;background:var(--bg);margin-top:16px;overflow:hidden;border:1px solid var(--line);}
.bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand),#5fd8bb);}
.task-list{margin-top:22px;display:grid;gap:12px;}
.task{
  display:flex;align-items:center;gap:12px;
  padding:14px 16px;border-radius:var(--radius-md);
  background:var(--bg);border:1px solid var(--line);font-size:14.5px;color:#334155;
}
.task .dot{
  width:20px;height:20px;border-radius:50%;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--line);color:transparent;font-size:12px;
}
.task.done .dot{background:var(--mint);border-color:var(--mint);color:#fff;}
.task.done{color:var(--muted);}
.task em{font-style:normal;margin-left:auto;font-size:12.5px;color:var(--muted-2);}

/* 预览卡 */
.preview-card{
  background:linear-gradient(170deg,#ffffff,#f7f9ff);
  border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px 22px;box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.preview-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#cfd9ee;}
.preview-card h3{font-size:16.5px;color:var(--ink);font-weight:700;margin-top:12px;}
.preview-card ul{margin-top:14px;display:grid;gap:8px;}
.preview-card li{font-size:14px;color:#475569;padding-left:16px;position:relative;line-height:1.75;}
.preview-card li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--brand);opacity:.6;}

/* 对比 */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:22px;}
.compare-col{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px 24px;box-shadow:var(--shadow-1);}
.compare-col.good{border-color:rgba(11,163,127,.35);background:linear-gradient(180deg,#f4fdfa,#fff);}
.compare-col h3{font-size:17px;font-weight:700;display:flex;align-items:center;gap:9px;color:var(--ink);}
.compare-col.good h3{color:#07775c;}
.compare-col ul{margin-top:16px;display:grid;gap:12px;}
.compare-col li{font-size:14.5px;color:#475569;line-height:1.8;padding-left:22px;position:relative;}
.compare-col li::before{
  position:absolute;left:0;top:1px;font-size:13px;font-weight:700;
}
.compare-col.bad li::before{content:"—";color:#cbd5e1;}
.compare-col.good li::before{content:"✓";color:var(--mint);}

/* 时间线 */
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative;}
.tl-item{position:relative;padding-top:26px;}
.tl-item::before{
  content:"";position:absolute;top:6px;left:0;width:14px;height:14px;border-radius:50%;
  background:#fff;border:3px solid var(--brand);box-shadow:0 0 0 4px rgba(59,91,219,.12);
}
.tl-item::after{
  content:"";position:absolute;top:12px;left:20px;right:-20px;height:2px;
  background:repeating-linear-gradient(90deg,#dbe3f3 0 8px,transparent 8px 16px);
}
.tl-item:last-child::after{display:none;}
.tl-item b{display:block;font-size:15.5px;color:var(--ink);font-weight:700;}
.tl-item span{display:block;margin-top:8px;font-size:14px;color:var(--muted);line-height:1.78;}

/* 资讯 */
.news-layout{display:grid;grid-template-columns:1.55fr .95fr;gap:28px;align-items:start;}
.news-list{display:grid;gap:14px;}
.news-item{
  display:block;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:22px 24px;box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.news-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#cfd9ee;}
.news-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--muted-2);}
.badge{
  display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-dark);font-size:12px;font-weight:700;
}
.news-item h3{margin-top:10px;font-size:17px;font-weight:700;color:var(--ink);line-height:1.55;}
.news-item p{margin-top:8px;font-size:14.5px;color:var(--muted);line-height:1.8;}
.news-more{display:inline-block;margin-top:14px;font-size:13.5px;font-weight:700;color:var(--brand);}
.news-side{display:grid;gap:16px;position:sticky;top:88px;}
.side-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px;box-shadow:var(--shadow-1);}
.side-panel h3{font-size:16px;font-weight:700;color:var(--ink);}
.side-list{margin-top:14px;display:grid;gap:12px;}
.side-list a{display:block;font-size:14px;color:#475569;line-height:1.72;transition:color var(--ease);}
.side-list a:hover{color:var(--brand);}
.side-list li{padding-bottom:12px;border-bottom:1px dashed var(--line);}
.side-list li:last-child{padding-bottom:0;border-bottom:0;}
.side-list .s-date{display:block;margin-top:5px;font-size:12px;color:var(--muted-2);}
.empty-state{
  background:#fff;border:1px dashed var(--line);border-radius:var(--radius-lg);
  padding:34px;text-align:center;color:var(--muted);font-size:14.5px;
}

/* FAQ */
.faq-list{display:grid;gap:12px;max-width:900px;margin:0 auto;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-1);overflow:hidden;}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;
  font-size:16px;font-weight:700;color:var(--ink);
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  transition:background var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:#f8faff;}
.faq-item summary::after{
  content:"+";font-size:20px;font-weight:400;color:var(--brand);
  transition:transform var(--ease);line-height:1;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item p{padding:0 22px 20px;font-size:14.5px;color:var(--muted);line-height:1.85;}

/* 订阅收口 */
.subscribe-wrap{
  background:linear-gradient(135deg,#101a2e,#1c2a48);
  border-radius:var(--radius-xl);
  padding:52px 48px;color:#fff;position:relative;overflow:hidden;
  display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;
}
.subscribe-wrap::before{
  content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(93,123,255,.35),transparent 68%);
}
.subscribe-copy{position:relative;z-index:2;}
.subscribe-copy h2{font-size:27px;font-weight:800;line-height:1.4;letter-spacing:-.3px;}
.subscribe-copy p{margin-top:14px;font-size:15px;color:#b6c2da;line-height:1.85;max-width:520px;}
.subscribe-form{position:relative;z-index:2;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);border-radius:var(--radius-lg);padding:22px;}
.subscribe-form label{font-size:13.5px;color:#c8d3e8;font-weight:600;}
.subscribe-form input{
  width:100%;margin-top:9px;height:46px;border-radius:var(--radius-sm);
  border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.94);
  padding:0 14px;font-size:15px;color:var(--ink);
}
.subscribe-form input::placeholder{color:#94a3b8;}
.subscribe-form .btn{margin-top:14px;}
.form-note{margin-top:12px;font-size:12.5px;color:#93a1bd;line-height:1.7;}
.form-msg{margin-top:12px;font-size:13.5px;font-weight:600;color:#5df0b8;display:none;}
.form-msg.show{display:block;}

/* footer */
.site-footer{background:#0a1120;color:#93a1bd;padding:56px 0 0;border-top:1px solid rgba(255,255,255,.06);}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;padding-bottom:42px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:#8695b3;max-width:300px;}
.footer-col h4{font-size:14.5px;color:#fff;font-weight:700;margin-bottom:16px;letter-spacing:.4px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:#93a1bd;transition:color var(--ease);}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7b8aa8;
}
.footer-bottom a{color:#a9b6d0;}
.footer-bottom a:hover{color:#fff;}

/* 响应式 */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:38px;padding-top:56px;padding-bottom:60px;}
  .hero h1{font-size:33px;}
  .stats-strip{grid-template-columns:repeat(2,1fr);}
  .stat-cell:nth-child(2){border-right:0;}
  .stat-cell:nth-child(1),.stat-cell:nth-child(2){border-bottom:1px solid var(--line);}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .promise-bar{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:1fr;}
  .timeline{grid-template-columns:repeat(2,1fr);row-gap:28px;}
  .tl-item:nth-child(2)::after{display:none;}
  .news-layout{grid-template-columns:1fr;}
  .news-side{position:static;}
  .subscribe-wrap{grid-template-columns:1fr;padding:38px 30px;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  .main-nav{
    position:absolute;top:64px;left:0;right:0;
    background:#fff;border-bottom:1px solid var(--line);
    flex-direction:column;align-items:stretch;gap:2px;
    padding:12px 18px 18px;box-shadow:0 20px 30px -26px rgba(15,23,42,.8);
    display:none;
  }
  .main-nav.open{display:flex;}
  .nav-link{justify-content:flex-start;}
  .nav-toggle{display:inline-flex;}
  .header-inner{gap:14px;}
  .header-actions .btn-sm{display:none;}
  .section{padding:56px 0;}
  .section-title{font-size:24px;}
  .hero h1{font-size:28px;}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .compare{grid-template-columns:1fr;}
  .promise-bar{grid-template-columns:1fr;}
  .stats-strip{grid-template-columns:1fr;}
  .stat-cell{border-right:0;border-bottom:1px solid var(--line);}
  .stat-cell:last-child{border-bottom:0;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
}
@media (max-width:520px){
  .hero h1{font-size:25px;line-height:1.36;}
  .hero-lead{font-size:14.5px;}
  .section-title{font-size:22px;}
  .countdown{grid-template-columns:repeat(4,1fr);gap:6px;}
  .cd-item b{font-size:16px;}
  .subscribe-wrap{padding:30px 20px;}
  .subscribe-copy h2{font-size:22px;}
  .timeline{grid-template-columns:1fr;}
  .tl-item::after{display:none;}
  .btn{width:100%;}
  .header-actions .btn{width:auto;}
  .hero-cta{flex-direction:column;}
  .hero-cta .btn{width:100%;}
}

/* roulang page: article */
:root{
 --brand:#3b5bdb;
 --brand-dark:#2a44ab;
 --brand-soft:#eaefff;
 --mint:#0ba37f;
 --mint-soft:#e2f7f1;
 --amber:#e8a020;
 --amber-soft:#fdf3e0;
 --ink:#0c1322;
 --ink-2:#111b2f;
 --text:#1e293b;
 --muted:#64748b;
 --muted-2:#94a3b8;
 --line:#e3e8f1;
 --bg:#f5f7fc;
 --surface:#ffffff;
 --radius-xl:18px;
 --radius-lg:14px;
 --radius-md:10px;
 --radius-sm:8px;
 --shadow-1:0 1px 2px rgba(15,23,42,.05),0 8px 22px -14px rgba(15,23,42,.28);
 --shadow-2:0 16px 40px -18px rgba(15,23,42,.42);
 --container:1180px;
 --ease:.22s cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
 font-size:16px;
 line-height:1.75;
 color:var(--text);
 background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(255,255,255,.92);
 backdrop-filter:blur(12px);
 border-bottom:1px solid var(--line);
 transition:box-shadow var(--ease),background var(--ease);
}
.site-header.scrolled{box-shadow:0 8px 24px -18px rgba(15,23,42,.6);}
.header-inner{display:flex;align-items:center;gap:28px;height:64px;position:relative;}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
 width:34px;height:34px;border-radius:10px;
 background:linear-gradient(140deg,var(--brand),#6a83f0);
 color:#fff;font-size:16px;font-weight:700;
 display:flex;align-items:center;justify-content:center;
 box-shadow:0 6px 14px -8px rgba(59,91,219,.9);
}
.logo-text{font-size:17px;font-weight:700;letter-spacing:.4px;color:var(--ink);}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
 padding:8px 14px;border-radius:var(--radius-sm);
 font-size:15px;color:#475569;font-weight:500;
 transition:color var(--ease),background var(--ease);
 min-height:40px;display:inline-flex;align-items:center;
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft);}
.nav-link.active{color:var(--brand);background:var(--brand-soft);font-weight:600;}
.header-actions{display:flex;align-items:center;gap:10px;}
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 min-height:42px;padding:0 20px;border-radius:var(--radius-sm);
 font-size:15px;font-weight:600;letter-spacing:.2px;
 transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
 white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px -14px rgba(59,91,219,.95);}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 16px 26px -14px rgba(42,68,171,.9);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:#fff;color:var(--brand);border:1px solid rgba(59,91,219,.35);}
.btn-outline:hover{background:var(--brand-soft);border-color:var(--brand);transform:translateY(-2px);}
.btn-light{background:#fff;color:var(--ink);}
.btn-light:hover{background:#f2f5ff;transform:translateY(-2px);}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;}
.nav-toggle{
 display:none;width:40px;height:40px;border-radius:var(--radius-sm);
 border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative;transition:background var(--ease);}
.nav-toggle span::before,.nav-toggle span::after{
 content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);transition:transform var(--ease);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ---------- 文章头部 ---------- */
.article-hero{
 position:relative;overflow:hidden;color:#fff;background:var(--ink);
 border-bottom:1px solid rgba(255,255,255,.06);
}
.article-hero .hero-bg{
 position:absolute;inset:0;
 background-image:url("/assets/images/backpic/back-3.webp");
 background-size:cover;background-position:center;
 opacity:.36;
}
.article-hero::after{
 content:"";position:absolute;inset:0;
 background:linear-gradient(118deg,rgba(12,19,34,.97) 14%,rgba(12,19,34,.82) 55%,rgba(17,27,47,.62) 100%);
}
.article-hero-inner{
 position:relative;z-index:2;
 display:grid;grid-template-columns:1.35fr .65fr;gap:44px;
 padding-top:44px;padding-bottom:52px;align-items:start;
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:#94a3c4;margin-bottom:20px;}
.crumb a{color:#c5d2ea;transition:color var(--ease);}
.crumb a:hover{color:#fff;}
.crumb span.sep{color:#4d5f80;}
.crumb .current{color:#8fa2c4;}
.article-badge-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:16px;}
.badge{
 display:inline-flex;align-items:center;gap:7px;
 padding:5px 13px;border-radius:999px;font-size:13px;font-weight:600;
 background:rgba(59,91,219,.24);border:1px solid rgba(122,146,255,.42);color:#c9d5ff;
}
.badge-mint{background:rgba(11,163,127,.2);border-color:rgba(93,240,184,.35);color:#a8f0da;}
.article-hero h1{
 font-size:34px;line-height:1.35;letter-spacing:-.4px;font-weight:800;color:#fff;
}
.article-lead{margin-top:16px;font-size:15.5px;line-height:1.85;color:#b6c3dc;max-width:720px;}
.article-lead-meta{display:flex;flex-wrap:wrap;gap:18px;margin-top:22px;font-size:13.5px;color:#8fa2c4;}
.article-lead-meta b{color:#d7dff0;font-weight:600;}
.hero-side{
 background:rgba(255,255,255,.06);
 border:1px solid rgba(255,255,255,.14);
 border-radius:var(--radius-xl);
 padding:22px;
 backdrop-filter:blur(6px);
}
.hero-side h2{font-size:15px;font-weight:700;color:#fff;letter-spacing:.3px;}
.hero-side ul{margin-top:14px;display:grid;gap:12px;}
.hero-side li{
 display:flex;gap:10px;align-items:flex-start;
 font-size:13.5px;line-height:1.7;color:#b5c2da;
}
.hero-side li i{
 flex:0 0 auto;width:20px;height:20px;border-radius:6px;margin-top:2px;
 background:rgba(93,240,184,.16);color:#5df0b8;font-style:normal;font-size:11px;font-weight:700;
 display:flex;align-items:center;justify-content:center;
}
.hero-side .side-foot{
 margin-top:18px;padding-top:16px;border-top:1px dashed rgba(255,255,255,.16);
 font-size:12.5px;color:#8fa2c4;line-height:1.7;
}

/* ---------- 通用板块 ---------- */
.sec{padding:64px 0;}
.sec-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{max-width:760px;margin-bottom:34px;}
.sec-kicker{
 display:inline-flex;align-items:center;gap:8px;
 font-size:13px;font-weight:700;letter-spacing:1.2px;text-transform:uppercase;color:var(--brand);
}
.sec-kicker::before{content:"";width:22px;height:3px;border-radius:2px;background:var(--brand);}
.sec-head h2{margin-top:12px;font-size:26px;line-height:1.4;font-weight:800;color:var(--ink);letter-spacing:-.3px;}
.sec-head p{margin-top:10px;font-size:15px;color:var(--muted);line-height:1.8;}

/* ---------- 正文 ---------- */
.article-body-wrap{padding:56px 0 24px;}
.article-shell{
 max-width:880px;margin:0 auto;background:var(--surface);
 border:1px solid var(--line);border-radius:var(--radius-xl);
 box-shadow:var(--shadow-1);padding:40px 44px;
}
.article-cover{
 border-radius:var(--radius-lg);overflow:hidden;margin-bottom:32px;
 border:1px solid var(--line);background:var(--bg);
}
.article-cover img{width:100%;height:300px;object-fit:cover;}
.article-cover figcaption{
 padding:10px 16px;font-size:12.5px;color:var(--muted-2);background:#fff;border-top:1px solid var(--line);
}
.article-content{font-size:16px;line-height:1.85;color:var(--text);}
.article-content>*+*{margin-top:18px;}
.article-content h2{
 font-size:22px;font-weight:800;color:var(--ink);line-height:1.45;
 margin-top:38px;padding-left:14px;border-left:4px solid var(--brand);
}
.article-content h3{font-size:18px;font-weight:700;color:var(--ink);margin-top:28px;}
.article-content h4{font-size:16px;font-weight:700;color:var(--ink-2);margin-top:22px;}
.article-content p{color:#334155;}
.article-content a{color:var(--brand);border-bottom:1px solid rgba(59,91,219,.35);transition:color var(--ease),border-color var(--ease);}
.article-content a:hover{color:var(--brand-dark);border-color:var(--brand-dark);}
.article-content ul,.article-content ol{margin-top:18px;padding-left:0;display:grid;gap:10px;}
.article-content ul li,.article-content ol li{
 position:relative;padding-left:22px;font-size:15.5px;line-height:1.8;color:#334155;
}
.article-content ul li::before{
 content:"";position:absolute;left:4px;top:12px;width:7px;height:7px;border-radius:2px;
 background:var(--brand);transform:rotate(45deg);
}
.article-content ol{counter-reset:li;}
.article-content ol li{counter-increment:li;padding-left:28px;}
.article-content ol li::before{
 content:counter(li);position:absolute;left:0;top:3px;
 width:20px;height:20px;border-radius:6px;background:var(--brand-soft);color:var(--brand-dark);
 font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.article-content blockquote{
 margin-top:26px;padding:18px 22px;border-radius:var(--radius-md);
 background:var(--brand-soft);border-left:4px solid var(--brand);
 color:#2b3a63;font-size:15px;line-height:1.8;
}
.article-content table{width:100%;border-collapse:collapse;margin-top:22px;font-size:14.5px;}
.article-content th,.article-content td{padding:12px 14px;border:1px solid var(--line);text-align:left;}
.article-content th{background:#f7f9fe;color:var(--ink);font-weight:700;}
.article-content tr:nth-child(even) td{background:#fbfcff;}
.article-content img{border-radius:var(--radius-md);margin-top:22px;}
.article-content hr{border:0;border-top:1px dashed var(--line);margin:32px 0;}
.article-empty{text-align:center;padding:56px 20px;}
.article-empty h2{font-size:22px;font-weight:800;color:var(--ink);}
.article-empty p{margin-top:12px;color:var(--muted);font-size:15px;}
.article-empty .btn{margin-top:24px;}

/* ---------- 卡片网格 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
 box-shadow:var(--shadow-1);padding:24px;
 transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(59,91,219,.35);}
.card-icon{
 width:40px;height:40px;border-radius:11px;display:flex;align-items:center;justify-content:center;
 background:var(--brand-soft);color:var(--brand);font-size:16px;font-weight:800;
 margin-bottom:14px;
}
.card-icon.mint{background:var(--mint-soft);color:#07775c;}
.card-icon.amber{background:var(--amber-soft);color:#a26a05;}
.card h3{font-size:16.5px;font-weight:700;color:var(--ink);line-height:1.5;}
.card p{margin-top:9px;font-size:14px;line-height:1.8;color:var(--muted);}
.card .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tag{
 display:inline-flex;align-items:center;
 padding:4px 11px;border-radius:999px;font-size:12.5px;font-weight:600;
 background:var(--brand-soft);color:var(--brand-dark);border:1px solid rgba(59,91,219,.16);
}
.tag-mint{background:var(--mint-soft);color:#07775c;border-color:rgba(11,163,127,.2);}
.tag-amber{background:var(--amber-soft);color:#96620a;border-color:rgba(232,160,32,.25);}
.tag-plain{background:#f1f5f9;color:#475569;border-color:var(--line);}

/* ---------- 数据条 ---------- */
.stat-strip{
 display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
 background:var(--line);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
}
.stat-strip .stat{background:#fff;padding:22px 20px;}
.stat b{display:block;font-size:24px;font-weight:800;color:var(--brand-dark);letter-spacing:-.5px;}
.stat span{display:block;margin-top:6px;font-size:13px;color:var(--muted);line-height:1.6;}

/* ---------- 要点列表 ---------- */
.point-list{display:grid;gap:14px;}
.point-item{
 display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:start;
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:20px 22px;box-shadow:var(--shadow-1);
 transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.point-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(59,91,219,.3);}
.point-num{
 width:34px;height:34px;border-radius:10px;background:var(--brand-soft);color:var(--brand-dark);
 font-size:14px;font-weight:800;display:flex;align-items:center;justify-content:center;
}
.point-item h3{font-size:16px;font-weight:700;color:var(--ink);}
.point-item p{margin-top:6px;font-size:14.5px;line-height:1.8;color:var(--muted);}

/* ---------- 保障区 ---------- */
.promise-box{
 display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:center;
 background:linear-gradient(135deg,#ffffff,#f4f7ff);
 border:1px solid var(--line);border-radius:var(--radius-xl);
 padding:34px;box-shadow:var(--shadow-1);
}
.promise-box h2{font-size:23px;font-weight:800;color:var(--ink);line-height:1.4;}
.promise-box p{margin-top:12px;font-size:15px;line-height:1.85;color:var(--muted);}
.promise-list{display:grid;gap:12px;}
.promise-list li{
 display:flex;gap:12px;align-items:flex-start;
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
 padding:14px 16px;font-size:14px;line-height:1.7;color:#334155;
}
.promise-list .dot{
 flex:0 0 auto;width:22px;height:22px;border-radius:7px;background:var(--mint-soft);
 color:#07775c;font-size:12px;font-weight:800;display:flex;align-items:center;justify-content:center;
}

/* ---------- 频道直达 ---------- */
.channel-bar{
 display:flex;flex-wrap:wrap;align-items:center;gap:16px;
 background:var(--ink);color:#fff;border-radius:var(--radius-xl);
 padding:26px 30px;box-shadow:var(--shadow-2);
}
.channel-bar .cb-title{font-size:16px;font-weight:700;letter-spacing:.3px;}
.channel-bar .cb-desc{font-size:13.5px;color:#9aabc9;flex:1 1 240px;}
.channel-links{display:flex;flex-wrap:wrap;gap:10px;}
.channel-links a{
 display:inline-flex;align-items:center;gap:8px;
 padding:9px 16px;border-radius:999px;font-size:14px;font-weight:600;
 background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);color:#e2e8f6;
 transition:background var(--ease),border-color var(--ease),transform var(--ease),color var(--ease);
 min-height:40px;
}
.channel-links a:hover{background:rgba(59,91,219,.5);border-color:rgba(122,146,255,.7);color:#fff;transform:translateY(-2px);}

/* ---------- 延伸阅读 ---------- */
.read-card{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 overflow:hidden;box-shadow:var(--shadow-1);
 transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.read-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(59,91,219,.3);}
.read-card .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--bg);}
.read-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.read-card:hover .thumb img{transform:scale(1.05);}
.read-card .rc-body{padding:20px 22px 24px;}
.read-card h3{font-size:16.5px;font-weight:700;color:var(--ink);line-height:1.5;}
.read-card p{margin-top:9px;font-size:14px;line-height:1.8;color:var(--muted);}
.read-card .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:15px;}
.preview-note{
 margin-top:22px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;
 background:var(--amber-soft);border:1px solid rgba(232,160,32,.28);
 border-radius:var(--radius-lg);padding:18px 22px;
}
.preview-note strong{font-size:15px;color:#96620a;}
.preview-note span{font-size:14px;color:#7c5a12;line-height:1.75;flex:1 1 280px;}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:920px;}
.faq-item{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 box-shadow:var(--shadow-1);overflow:hidden;
 transition:border-color var(--ease),box-shadow var(--ease);
}
.faq-item[open]{border-color:rgba(59,91,219,.32);box-shadow:var(--shadow-2);}
.faq-item summary{
 list-style:none;cursor:pointer;padding:18px 54px 18px 22px;position:relative;
 font-size:15.5px;font-weight:700;color:var(--ink);line-height:1.6;
 min-height:48px;display:flex;align-items:center;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
 content:"";position:absolute;right:22px;top:50%;width:10px;height:10px;
 border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
 transform:translateY(-70%) rotate(45deg);transition:transform var(--ease);
}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(-135deg);}
.faq-item .faq-a{padding:0 22px 20px;font-size:14.5px;line-height:1.85;color:var(--muted);}

/* ---------- 订阅 ---------- */
.subscribe-sec{padding:0 0 76px;}
.subscribe-box{
 position:relative;overflow:hidden;color:#fff;border-radius:var(--radius-xl);
 background:var(--ink);padding:44px;box-shadow:var(--shadow-2);
 display:grid;grid-template-columns:1.1fr .9fr;gap:38px;align-items:center;
}
.subscribe-box::before{
 content:"";position:absolute;inset:0;
 background-image:url("/assets/images/backpic/back-5.webp");
 background-size:cover;background-position:center;opacity:.22;
}
.subscribe-box::after{
 content:"";position:absolute;inset:0;
 background:linear-gradient(115deg,rgba(12,19,34,.95),rgba(23,35,64,.72));
}
.subscribe-box>*{position:relative;z-index:2;}
.subscribe-box h2{font-size:26px;font-weight:800;line-height:1.4;color:#fff;letter-spacing:-.3px;}
.subscribe-box p{margin-top:12px;font-size:15px;line-height:1.85;color:#b6c3dc;max-width:520px;}
.subscribe-form{display:flex;flex-wrap:wrap;gap:12px;}
.subscribe-form input{
 flex:1 1 220px;min-height:46px;padding:0 16px;border-radius:var(--radius-sm);
 background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.24);color:#fff;
 transition:border-color var(--ease),background var(--ease);
}
.subscribe-form input::placeholder{color:#9aabc9;}
.subscribe-form input:focus{outline:none;border-color:#7d95ff;background:rgba(255,255,255,.16);}
.subscribe-form .btn{min-height:46px;}
.form-hint{margin-top:12px;font-size:12.5px;color:#8fa2c4;line-height:1.7;}

/* ---------- footer ---------- */
.site-footer{background:#0a1120;color:#93a3bf;padding:56px 0 26px;border-top:1px solid rgba(255,255,255,.06);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:#8697b4;max-width:330px;}
.footer-col h4{font-size:14px;font-weight:700;color:#e2e8f6;letter-spacing:.4px;margin-bottom:14px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:#93a3bf;transition:color var(--ease),transform var(--ease);display:inline-block;min-height:26px;}
.footer-col a:hover{color:#fff;transform:translateX(3px);}
.footer-bottom{
 margin-top:36px;padding-top:22px;border-top:1px solid rgba(255,255,255,.09);
 display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
 font-size:13px;color:#7688a6;line-height:1.7;
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
 .hero-inner,.article-hero-inner{grid-template-columns:1fr;gap:32px;}
 .article-hero-inner{padding-top:32px;padding-bottom:40px;}
 .grid-3{grid-template-columns:repeat(2,1fr);}
 .grid-4{grid-template-columns:repeat(2,1fr);}
 .stat-strip{grid-template-columns:repeat(2,1fr);}
 .promise-box{grid-template-columns:1fr;gap:24px;}
 .subscribe-box{grid-template-columns:1fr;gap:26px;padding:34px;}
 .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
 .article-shell{padding:32px 28px;}
}
@media (max-width:900px){
 .header-inner{gap:14px;}
 .main-nav{
  position:absolute;top:64px;left:0;right:0;
  flex-direction:column;align-items:stretch;gap:2px;
  background:#fff;border-bottom:1px solid var(--line);
  padding:10px 16px 16px;display:none;
  box-shadow:0 22px 34px -24px rgba(15,23,42,.7);
 }
 .main-nav.open{display:flex;}
 .nav-link{min-height:44px;width:100%;}
 .nav-toggle{display:inline-flex;}
 .article-hero h1{font-size:28px;}
}
@media (max-width:768px){
 .container{padding:0 18px;}
 .sec{padding:48px 0;}
 .sec-head h2{font-size:22px;}
 .grid-3,.grid-4{grid-template-columns:1fr;}
 .article-shell{padding:26px 20px;border-radius:var(--radius-lg);}
 .article-body-wrap{padding:36px 0 12px;}
 .article-content h2{font-size:20px;}
 .article-content{font-size:15.5px;}
 .article-cover img{height:210px;}
 .stat-strip{grid-template-columns:1fr 1fr;}
 .channel-bar{padding:22px;flex-direction:column;align-items:flex-start;}
 .footer-grid{grid-template-columns:1fr;}
 .footer-bottom{flex-direction:column;}
 .subscribe-box{padding:26px;}
 .subscribe-box h2{font-size:22px;}
 .article-lead-meta{gap:12px;font-size:12.5px;}
}
@media (max-width:520px){
 .header-actions .btn{display:none;}
 .logo-text{font-size:15.5px;}
 .article-hero h1{font-size:24px;}
 .article-lead{font-size:14.5px;}
 .btn{min-height:42px;padding:0 16px;font-size:14px;}
 .sec-head h2{font-size:20px;}
 .point-item{grid-template-columns:1fr;gap:10px;}
 .stat-strip{grid-template-columns:1fr;}
 .article-content table{font-size:13.5px;}
 .article-content th,.article-content td{padding:9px 10px;}
}

/* roulang page: category1 */
:root{
 --brand:#3b5bdb;
 --brand-dark:#2a44ab;
 --brand-soft:#eaefff;
 --mint:#0ba37f;
 --mint-soft:#e2f7f1;
 --amber:#e8a020;
 --amber-soft:#fdf3e0;
 --ink:#0c1322;
 --ink-2:#111b2f;
 --text:#1e293b;
 --muted:#64748b;
 --muted-2:#94a3b8;
 --line:#e3e8f1;
 --bg:#f5f7fc;
 --surface:#ffffff;
 --radius-xl:18px;
 --radius-lg:14px;
 --radius-md:10px;
 --radius-sm:8px;
 --shadow-1:0 1px 2px rgba(15,23,42,.05),0 8px 22px -14px rgba(15,23,42,.28);
 --shadow-2:0 16px 40px -18px rgba(15,23,42,.42);
 --container:1180px;
 --ease:.22s cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
 font-size:16px;line-height:1.75;color:var(--text);background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,select{font:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul{padding:0;list-style:none;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}
/* ---------- header ---------- */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(255,255,255,.92);
 backdrop-filter:blur(12px);
 border-bottom:1px solid var(--line);
 transition:box-shadow var(--ease),background var(--ease);
}
.site-header.scrolled{box-shadow:0 8px 24px -18px rgba(15,23,42,.6);}
.header-inner{display:flex;align-items:center;gap:28px;height:64px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
 width:34px;height:34px;border-radius:10px;
 background:linear-gradient(140deg,var(--brand),#6a83f0);
 color:#fff;font-size:16px;font-weight:700;
 display:flex;align-items:center;justify-content:center;
 box-shadow:0 6px 14px -8px rgba(59,91,219,.9);
}
.logo-text{font-size:17px;font-weight:700;letter-spacing:.4px;color:var(--ink);}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
 padding:8px 14px;border-radius:var(--radius-sm);
 font-size:15px;color:#475569;font-weight:500;
 transition:color var(--ease),background var(--ease);
 min-height:40px;display:inline-flex;align-items:center;
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft);}
.nav-link.active{color:var(--brand);background:var(--brand-soft);font-weight:600;}
.header-actions{display:flex;align-items:center;gap:10px;}
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 min-height:42px;padding:0 20px;border-radius:var(--radius-sm);
 font-size:15px;font-weight:600;letter-spacing:.2px;
 transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
 white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px -14px rgba(59,91,219,.95);}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 16px 26px -14px rgba(42,68,171,.9);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.45);}
.btn-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff;transform:translateY(-2px);}
.btn-outline{background:#fff;color:var(--brand);border:1px solid rgba(59,91,219,.35);}
.btn-outline:hover{background:var(--brand-soft);border-color:var(--brand);transform:translateY(-2px);}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}
.nav-toggle{
 display:none;width:40px;height:40px;border-radius:var(--radius-sm);
 border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
 content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);transition:transform var(--ease);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;color:#fff;background:var(--ink);}
.hero-bg{
 position:absolute;inset:0;
 background-image:url("/assets/images/backpic/back-2.webp");
 background-size:cover;background-position:center;opacity:.4;
}
.hero::after{
 content:"";position:absolute;inset:0;
 background:linear-gradient(115deg,rgba(12,19,34,.96) 10%,rgba(12,19,34,.8) 54%,rgba(17,27,47,.62) 100%);
}
.hero-inner{
 position:relative;z-index:2;
 display:grid;grid-template-columns:1.1fr .9fr;gap:52px;
 padding-top:68px;padding-bottom:72px;align-items:center;
}
.hero-badge{
 display:inline-flex;align-items:center;gap:8px;
 padding:6px 14px;border-radius:999px;
 background:rgba(59,91,219,.22);border:1px solid rgba(122,146,255,.4);
 color:#c9d5ff;font-size:13px;font-weight:600;letter-spacing:.4px;
}
.hero-badge::before{content:"";width:7px;height:7px;border-radius:50%;background:#5df0b8;box-shadow:0 0 0 4px rgba(93,240,184,.18);}
.hero h1{margin-top:18px;font-size:40px;line-height:1.28;letter-spacing:-.5px;font-weight:800;}
.hero-sub{margin-top:14px;font-size:17px;color:#a9b6d4;font-weight:500;}
.hero-lead{margin-top:16px;font-size:15.5px;line-height:1.85;color:#c3cde2;max-width:600px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.tag{
 display:inline-flex;align-items:center;
 padding:5px 13px;border-radius:999px;
 font-size:13px;font-weight:600;
 background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);color:#d7dff0;
}
.tag-light{background:var(--brand-soft);color:var(--brand-dark);border-color:rgba(59,91,219,.16);}
.tag-mint{background:var(--mint-soft);color:#07775c;border-color:rgba(11,163,127,.2);}
.tag-amber{background:var(--amber-soft);color:#8a5c06;border-color:rgba(232,160,32,.26);}
/* 时段面板 */
.slot-panel{
 background:rgba(255,255,255,.975);
 border-radius:var(--radius-xl);
 box-shadow:0 30px 60px -30px rgba(4,10,25,.85);
 border:1px solid rgba(255,255,255,.5);
 padding:24px;color:var(--text);
}
.slot-panel h2{font-size:17px;font-weight:700;color:var(--ink);}
.slot-panel .slot-note{margin-top:6px;font-size:13.5px;color:var(--muted);}
.slot-list{display:grid;gap:10px;margin-top:18px;}
.slot-btn{
 display:flex;align-items:center;justify-content:space-between;gap:12px;
 padding:12px 14px;border-radius:var(--radius-md);
 border:1px solid var(--line);background:#fff;text-align:left;
 transition:border-color var(--ease),background var(--ease),transform var(--ease),box-shadow var(--ease);
 min-height:44px;
}
.slot-btn:hover{border-color:rgba(59,91,219,.45);transform:translateY(-2px);box-shadow:var(--shadow-1);}
.slot-btn .slot-time{font-size:15px;font-weight:700;color:var(--ink);}
.slot-btn .slot-name{font-size:13px;color:var(--muted);margin-top:2px;}
.slot-btn .slot-dot{width:8px;height:8px;border-radius:50%;background:var(--muted-2);flex:0 0 auto;}
.slot-btn.is-active{background:var(--brand-soft);border-color:rgba(59,91,219,.5);}
.slot-btn.is-active .slot-time{color:var(--brand-dark);}
.slot-btn.is-active .slot-dot{background:var(--brand);box-shadow:0 0 0 4px rgba(59,91,219,.16);}
.slot-detail{
 margin-top:16px;padding:14px 16px;border-radius:var(--radius-md);
 background:#f8faff;border:1px dashed rgba(59,91,219,.28);
 font-size:14px;color:#3d4a63;line-height:1.75;
}
.slot-detail strong{color:var(--brand-dark);}
.slot-foot{margin-top:16px;display:grid;gap:10px;}
.slot-foot small{font-size:12.5px;color:var(--muted-2);text-align:center;}
/* ---------- section 通用 ---------- */
.section{padding:74px 0;}
.section--alt{background:var(--surface);}
.section--ink{background:var(--ink-2);color:#e6ecf8;}
.section-head{max-width:760px;margin-bottom:36px;}
.kicker{
 display:inline-flex;align-items:center;gap:8px;
 font-size:13px;font-weight:700;letter-spacing:1px;color:var(--brand);
 text-transform:uppercase;
}
.kicker::before{content:"";width:22px;height:3px;border-radius:2px;background:var(--brand);}
.section--ink .kicker{color:#8fa6ff;}
.section--ink .kicker::before{background:#8fa6ff;}
.section h2{margin-top:12px;font-size:29px;line-height:1.36;font-weight:800;color:var(--ink);letter-spacing:-.3px;}
.section--ink h2{color:#fff;}
.section-desc{margin-top:12px;font-size:15.5px;line-height:1.85;color:var(--muted);}
.section--ink .section-desc{color:#a9b6d4;}
/* ---------- 指标看板 ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.metric{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:22px;box-shadow:var(--shadow-1);
 transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.metric:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(59,91,219,.28);}
.metric .num{font-size:32px;font-weight:800;color:var(--brand);letter-spacing:-1px;line-height:1.2;}
.metric .num span{font-size:15px;font-weight:700;margin-left:4px;color:var(--brand-dark);}
.metric .label{margin-top:8px;font-size:14.5px;font-weight:600;color:var(--ink);}
.metric .desc{margin-top:6px;font-size:13.5px;color:var(--muted);line-height:1.7;}
/* ---------- 规则矩阵卡片 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:24px;box-shadow:var(--shadow-1);
 transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(59,91,219,.3);}
.card-icon{
 width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;
 background:var(--brand-soft);color:var(--brand);margin-bottom:14px;
}
.card-icon svg{width:22px;height:22px;}
.card h3{font-size:17.5px;font-weight:700;color:var(--ink);line-height:1.45;}
.card p{margin-top:9px;font-size:14.5px;color:var(--muted);line-height:1.8;}
.card .card-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
/* ---------- 赔率对照 ---------- */
.table-wrap{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
 box-shadow:var(--shadow-1);overflow-x:auto;
}
table.compare{width:100%;border-collapse:collapse;min-width:640px;}
table.compare thead th{
 text-align:left;font-size:13.5px;font-weight:700;color:#475569;
 padding:16px 20px;background:#f8faff;border-bottom:1px solid var(--line);white-space:nowrap;
}
table.compare tbody td{
 padding:16px 20px;font-size:14.5px;color:#334155;border-bottom:1px solid var(--line);line-height:1.7;
}
table.compare tbody tr:last-child td{border-bottom:0;}
table.compare tbody tr:hover td{background:#fafbff;}
table.compare td strong{color:var(--ink);}
.pill{
 display:inline-block;padding:3px 10px;border-radius:999px;font-size:12.5px;font-weight:700;
 background:var(--mint-soft);color:#07775c;
}
.pill-amber{background:var(--amber-soft);color:#8a5c06;}
.pill-brand{background:var(--brand-soft);color:var(--brand-dark);}
.compare-note{margin-top:14px;font-size:13.5px;color:var(--muted);line-height:1.8;}
/* ---------- 时间线 ---------- */
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step;}
.step{
 position:relative;background:var(--surface);border:1px solid var(--line);
 border-radius:var(--radius-lg);padding:24px 22px;box-shadow:var(--shadow-1);
 transition:transform var(--ease),box-shadow var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.step .step-no{
 width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;
 background:var(--ink);color:#fff;font-size:14px;font-weight:800;margin-bottom:14px;
}
.step h3{font-size:16.5px;font-weight:700;color:var(--ink);}
.step p{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.8;}
.step .step-meta{margin-top:14px;font-size:12.5px;color:var(--brand);font-weight:700;}
/* ---------- 图文块 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;}
.figure{
 border-radius:var(--radius-xl);overflow:hidden;border:1px solid var(--line);
 box-shadow:var(--shadow-2);position:relative;
}
.figure img{width:100%;height:340px;object-fit:cover;transition:transform .5s var(--ease);}
.figure:hover img{transform:scale(1.03);}
.figure figcaption{
 position:absolute;left:0;right:0;bottom:0;padding:16px 20px;
 background:linear-gradient(to top,rgba(12,19,34,.82),rgba(12,19,34,0));
 color:#dbe4f5;font-size:13px;
}
.check-list{display:grid;gap:14px;margin-top:22px;}
.check-list li{
 display:flex;gap:12px;align-items:flex-start;
 font-size:15px;color:#334155;line-height:1.8;
}
.check-list .tick{
 flex:0 0 auto;width:22px;height:22px;border-radius:7px;margin-top:3px;
 background:var(--mint-soft);color:#07775c;display:flex;align-items:center;justify-content:center;
 font-size:13px;font-weight:800;
}
/* ---------- 资讯列表 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.news-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
 overflow:hidden;box-shadow:var(--shadow-1);
 transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(59,91,219,.3);}
.news-link{display:block;padding:22px;height:100%;}
.news-cat{
 display:inline-block;padding:3px 10px;border-radius:999px;
 background:var(--brand-soft);color:var(--brand-dark);
 font-size:12.5px;font-weight:700;
}
.news-card h3{margin-top:12px;font-size:16.5px;font-weight:700;color:var(--ink);line-height:1.55;}
.news-card p{margin-top:9px;font-size:14px;color:var(--muted);line-height:1.8;
 display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:block;margin-top:14px;font-size:12.5px;color:var(--muted-2);}
.empty-tip{
 padding:28px;border:1px dashed var(--line);border-radius:var(--radius-lg);
 background:var(--surface);color:var(--muted);font-size:14.5px;text-align:center;
}
.news-more{display:flex;justify-content:center;margin-top:30px;}
/* ---------- 保障 ---------- */
.section--ink .card{background:rgba(255,255,255,.045);border-color:rgba(255,255,255,.12);box-shadow:none;}
.section--ink .card:hover{border-color:rgba(143,166,255,.5);background:rgba(255,255,255,.075);}
.section--ink .card h3{color:#fff;}
.section--ink .card p{color:#a9b6d4;}
.section--ink .card-icon{background:rgba(143,166,255,.16);color:#9fb4ff;}
/* ---------- 频道矩阵 ---------- */
.channel{
 display:flex;flex-direction:column;gap:12px;
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:24px;box-shadow:var(--shadow-1);
 transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.channel:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(59,91,219,.32);}
.channel h3{font-size:18px;font-weight:700;color:var(--ink);display:flex;align-items:center;gap:10px;}
.channel p{font-size:14.5px;color:var(--muted);line-height:1.8;flex:1;}
.channel .channel-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.channel .arrow{color:var(--brand);font-weight:700;font-size:14px;}
.channel.is-current{border-color:rgba(59,91,219,.55);background:linear-gradient(180deg,#f7f9ff,#fff);}
.channel.is-current .arrow{color:var(--mint);}
/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;}
.faq-item{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
 overflow:hidden;transition:border-color var(--ease),box-shadow var(--ease);
}
.faq-item:hover{border-color:rgba(59,91,219,.3);box-shadow:var(--shadow-1);}
.faq-item summary{
 list-style:none;cursor:pointer;padding:18px 22px;
 display:flex;align-items:center;justify-content:space-between;gap:16px;
 font-size:16px;font-weight:600;color:var(--ink);min-height:44px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
 content:"";flex:0 0 auto;width:10px;height:10px;margin-right:3px;
 border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
 transform:rotate(45deg);transition:transform var(--ease);
}
.faq-item[open] summary::after{transform:rotate(-135deg);}
.faq-item .faq-body{padding:0 22px 20px;font-size:14.5px;color:var(--muted);line-height:1.85;}
.quick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:34px;}
.quick{
 background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--brand);
 border-radius:var(--radius-md);padding:18px 20px;box-shadow:var(--shadow-1);
}
.quick h3{font-size:15.5px;font-weight:700;color:var(--ink);}
.quick p{margin-top:7px;font-size:14px;color:var(--muted);line-height:1.8;}
/* ---------- 订阅表单 ---------- */
.subscribe{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-xl);
 box-shadow:var(--shadow-2);padding:40px;
 display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;
}
.subscribe h2{font-size:26px;font-weight:800;color:var(--ink);line-height:1.4;}
.subscribe p{margin-top:12px;font-size:14.5px;color:var(--muted);line-height:1.85;}
.form-grid{display:grid;gap:14px;}
.field label{display:block;font-size:13.5px;font-weight:600;color:#475569;margin-bottom:6px;}
.field input,.field select{
 width:100%;min-height:46px;padding:0 14px;
 border:1px solid var(--line);border-radius:var(--radius-sm);
 background:#fbfcff;color:var(--ink);
 transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.field input:hover,.field select:hover{border-color:rgba(59,91,219,.4);}
.field input:focus,.field select:focus{
 outline:none;border-color:var(--brand);background:#fff;
 box-shadow:0 0 0 3px rgba(59,91,219,.14);
}
.form-tip{font-size:12.5px;color:var(--muted-2);line-height:1.7;}
.form-msg{
 display:none;padding:11px 14px;border-radius:var(--radius-sm);
 background:var(--mint-soft);color:#07775c;font-size:13.5px;font-weight:600;
}
.form-msg.show{display:block;}
/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#97a3bb;padding:56px 0 26px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{margin-top:14px;font-size:14px;line-height:1.85;color:#8b96ad;max-width:340px;}
.footer-col h4{font-size:14.5px;font-weight:700;color:#fff;margin-bottom:14px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:#97a3bb;transition:color var(--ease);}
.footer-col a:hover{color:#fff;}
.footer-bottom{
 margin-top:38px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
 display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
 font-size:13px;color:#7b869d;
}
/* ---------- 响应式 ---------- */
@media (max-width:1024px){
 .hero-inner{grid-template-columns:1fr;gap:36px;padding-top:56px;padding-bottom:60px;}
 .hero h1{font-size:34px;}
 .metrics{grid-template-columns:repeat(2,1fr);}
 .grid-3{grid-template-columns:repeat(2,1fr);}
 .news-grid{grid-template-columns:repeat(2,1fr);}
 .timeline{grid-template-columns:repeat(2,1fr);}
 .split{grid-template-columns:1fr;gap:30px;}
 .subscribe{grid-template-columns:1fr;padding:30px;gap:26px;}
 .footer-grid{grid-template-columns:1fr 1fr;}
 .quick-grid{grid-template-columns:1fr;}
 .section{padding:60px 0;}
 .section h2{font-size:25px;}
}
@media (max-width:820px){
 .main-nav{
  position:absolute;top:64px;left:0;right:0;
  flex-direction:column;align-items:stretch;gap:6px;
  background:#fff;border-bottom:1px solid var(--line);
  padding:14px 20px 20px;margin-left:0;
  box-shadow:0 20px 34px -24px rgba(15,23,42,.6);
  display:none;
 }
 .main-nav.open{display:flex;}
 .nav-link{min-height:44px;padding:10px 12px;}
 .nav-toggle{display:inline-flex;}
 .header-actions .btn{display:none;}
 .grid-2{grid-template-columns:1fr;}
}
@media (max-width:520px){
 .container{padding:0 18px;}
 .hero h1{font-size:27px;letter-spacing:-.2px;}
 .hero-sub{font-size:15px;}
 .hero-lead{font-size:14.5px;}
 .hero-cta .btn{width:100%;}
 .metrics{grid-template-columns:1fr;}
 .grid-3,.news-grid,.timeline{grid-template-columns:1fr;}
 .card,.metric,.step,.channel,.quick{padding:20px;}
 .section{padding:48px 0;}
 .section h2{font-size:22px;}
 .figure img{height:230px;}
 .subscribe{padding:22px;}
 .footer-grid{grid-template-columns:1fr;gap:26px;}
 .footer-bottom{flex-direction:column;}
 .slot-panel{padding:20px;}
}

/* roulang page: category3 */
:root{
 --brand:#3b5bdb;
 --brand-dark:#2a44ab;
 --brand-soft:#eaefff;
 --mint:#0ba37f;
 --mint-soft:#e2f7f1;
 --amber:#e8a020;
 --amber-soft:#fdf3e0;
 --ink:#0c1322;
 --ink-2:#111b2f;
 --text:#1e293b;
 --muted:#64748b;
 --muted-2:#94a3b8;
 --line:#e3e8f1;
 --bg:#f5f7fc;
 --surface:#ffffff;
 --radius-xl:18px;
 --radius-lg:14px;
 --radius-md:10px;
 --radius-sm:8px;
 --shadow-1:0 1px 2px rgba(15,23,42,.05),0 8px 22px -14px rgba(15,23,42,.28);
 --shadow-2:0 16px 40px -18px rgba(15,23,42,.42);
 --container:1180px;
 --ease:.22s cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
 font-size:16px;
 line-height:1.75;
 color:var(--text);
 background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(255,255,255,.92);
 backdrop-filter:blur(12px);
 border-bottom:1px solid var(--line);
 transition:box-shadow var(--ease),background var(--ease);
}
.site-header.scrolled{box-shadow:0 8px 24px -18px rgba(15,23,42,.6);}
.header-inner{display:flex;align-items:center;gap:28px;height:64px;position:relative;}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
 width:34px;height:34px;border-radius:10px;
 background:linear-gradient(140deg,var(--brand),#6a83f0);
 color:#fff;font-size:16px;font-weight:700;
 display:flex;align-items:center;justify-content:center;
 box-shadow:0 6px 14px -8px rgba(59,91,219,.9);
}
.logo-text{font-size:17px;font-weight:700;letter-spacing:.4px;color:var(--ink);}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
 padding:8px 14px;border-radius:var(--radius-sm);
 font-size:15px;color:#475569;font-weight:500;
 transition:color var(--ease),background var(--ease);
 min-height:40px;display:inline-flex;align-items:center;
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft);}
.nav-link.active{color:var(--brand);background:var(--brand-soft);font-weight:600;}
.header-actions{display:flex;align-items:center;gap:10px;}
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 min-height:42px;padding:0 20px;border-radius:var(--radius-sm);
 font-size:15px;font-weight:600;letter-spacing:.2px;
 transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
 white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px -14px rgba(59,91,219,.95);}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 16px 26px -14px rgba(42,68,171,.9);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.45);}
.btn-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff;transform:translateY(-2px);}
.btn-outline{background:#fff;color:var(--brand);border:1px solid rgba(59,91,219,.35);}
.btn-outline:hover{background:var(--brand-soft);border-color:var(--brand);transform:translateY(-2px);}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}
.nav-toggle{
 display:none;width:40px;height:40px;border-radius:var(--radius-sm);
 border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
 content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);transition:transform var(--ease);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;color:#fff;background:var(--ink);}
.hero-bg{
 position:absolute;inset:0;
 background-image:url("/assets/images/backpic/back-3.webp");
 background-size:cover;background-position:center;
 opacity:.4;
}
.hero::after{
 content:"";position:absolute;inset:0;
 background:linear-gradient(112deg,rgba(12,19,34,.97) 8%,rgba(12,19,34,.84) 48%,rgba(17,27,47,.62) 100%);
}
.hero-inner{
 position:relative;z-index:2;
 display:grid;grid-template-columns:1.08fr .92fr;gap:50px;
 padding-top:60px;padding-bottom:68px;align-items:center;
}
.hero-badge{
 display:inline-flex;align-items:center;gap:8px;
 padding:6px 14px;border-radius:999px;
 background:rgba(59,91,219,.22);border:1px solid rgba(122,146,255,.4);
 color:#c9d5ff;font-size:13px;font-weight:600;letter-spacing:.4px;
}
.hero-badge::before{content:"";width:7px;height:7px;border-radius:50%;background:#5df0b8;box-shadow:0 0 0 4px rgba(93,240,184,.18);}
.hero h1{margin-top:18px;font-size:36px;line-height:1.3;letter-spacing:-.5px;font-weight:800;}
.hero-sub{margin-top:14px;font-size:16.5px;color:#a9b6d4;font-weight:500;}
.hero-lead{margin-top:16px;font-size:15px;line-height:1.85;color:#c3cde2;max-width:580px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.tag{
 display:inline-flex;align-items:center;
 padding:5px 13px;border-radius:999px;
 font-size:13px;font-weight:600;
 background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);color:#d7dff0;
}
.tag-light{background:var(--brand-soft);color:var(--brand-dark);border-color:rgba(59,91,219,.16);}
.tag-mint{background:var(--mint-soft);color:#07775c;border-color:rgba(11,163,127,.2);}
.tag-amber{background:var(--amber-soft);color:#8a5b02;border-color:rgba(232,160,32,.28);}
.hero-pick{position:relative;}
.pick-card{
 position:relative;
 background:#fff;color:var(--text);
 border-radius:var(--radius-xl);overflow:hidden;
 border:1px solid rgba(255,255,255,.55);
 box-shadow:0 30px 60px -30px rgba(4,10,25,.85);
}
.pick-cover{position:relative;height:168px;overflow:hidden;}
.pick-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.pick-card:hover .pick-cover img{transform:scale(1.04);}
.pick-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(12,19,34,0) 35%,rgba(12,19,34,.6));}
.pick-badge{
 position:absolute;top:14px;left:14px;z-index:2;
 display:inline-flex;align-items:center;gap:6px;
 padding:5px 12px;border-radius:999px;
 background:var(--amber);color:#3a2500;
 font-size:12.5px;font-weight:700;letter-spacing:.3px;
 box-shadow:0 8px 18px -8px rgba(232,160,32,.95);
}
.pick-body{padding:20px 22px 22px;}
.pick-top{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;}
.pick-body h2{font-size:19px;color:var(--ink);font-weight:700;line-height:1.4;}
.pick-score{
 flex-shrink:0;text-align:center;padding:6px 12px;border-radius:var(--radius-md);
 background:var(--brand-soft);color:var(--brand-dark);
 font-size:12px;font-weight:700;line-height:1.3;
}
.pick-score b{display:block;font-size:20px;letter-spacing:-.4px;}
.pick-note{margin-top:10px;font-size:13.5px;color:var(--muted);line-height:1.7;}
.pick-list{margin-top:16px;display:grid;gap:9px;}
.pick-list li{display:flex;gap:9px;align-items:flex-start;font-size:14px;color:#334155;}
.pick-list li::before{
 content:"";flex-shrink:0;width:16px;height:16px;margin-top:3px;border-radius:50%;
 background:var(--mint-soft);
 background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230ba37f' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E");
 background-repeat:no-repeat;background-position:center;background-size:10px 10px;
}
.pick-actions{margin-top:18px;display:grid;gap:10px;}
.pick-price{margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);display:flex;align-items:baseline;gap:8px;font-size:13px;color:var(--muted);}
.pick-price b{font-size:22px;color:var(--brand-dark);letter-spacing:-.5px;}

/* ---------- section base ---------- */
.section{padding:72px 0;}
.section-alt{background:#eef2fa;}
.section-white{background:var(--surface);}
.section-dark{background:linear-gradient(160deg,#0c1322,#16233c 65%,#1b2c4a);color:#fff;}
.section-head{max-width:780px;margin-bottom:34px;}
.eyebrow{
 display:inline-flex;align-items:center;gap:9px;
 font-size:13px;font-weight:700;letter-spacing:1.6px;color:var(--brand);
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--brand);}
.section-title{margin-top:12px;font-size:28px;line-height:1.35;font-weight:800;color:var(--ink);letter-spacing:-.3px;}
.section-desc{margin-top:12px;font-size:15.5px;color:var(--muted);line-height:1.85;}
.section-dark .eyebrow{color:#8fa5ff;}
.section-dark .eyebrow::before{background:#8fa5ff;}
.section-dark .section-title{color:#fff;}
.section-dark .section-desc{color:#a9b6d4;}

/* ---------- metrics ---------- */
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.metric-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:22px 22px 20px;box-shadow:var(--shadow-1);
 transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.metric-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#cfd9ef;}
.metric-num{font-size:32px;font-weight:800;letter-spacing:-1px;color:var(--brand-dark);line-height:1.1;}
.metric-num span{font-size:16px;font-weight:700;margin-left:3px;color:var(--muted);}
.metric-label{margin-top:8px;font-size:15px;font-weight:700;color:var(--ink);}
.metric-note{margin-top:6px;font-size:13.5px;color:var(--muted);line-height:1.65;}

/* ---------- matrix ---------- */
.matrix-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.matrix-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:24px;box-shadow:var(--shadow-1);
 transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.matrix-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#cfd9ef;}
.matrix-icon{
 width:44px;height:44px;border-radius:12px;
 display:flex;align-items:center;justify-content:center;
 background:var(--brand-soft);color:var(--brand);
 margin-bottom:16px;
}
.matrix-icon svg{width:22px;height:22px;}
.matrix-card h3{font-size:17px;font-weight:700;color:var(--ink);line-height:1.45;}
.matrix-card p{margin-top:9px;font-size:14px;color:var(--muted);line-height:1.78;}
.matrix-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.matrix-tags .tag{font-size:12px;padding:4px 10px;}

/* ---------- compare ---------- */
.compare-wrap{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
 box-shadow:var(--shadow-1);overflow-x:auto;
}
.compare-table{width:100%;border-collapse:collapse;min-width:680px;font-size:14.5px;}
.compare-table th,.compare-table td{padding:15px 18px;text-align:left;border-bottom:1px solid var(--line);}
.compare-table thead th{
 background:#f8faff;color:var(--ink);font-weight:700;font-size:14.5px;letter-spacing:.2px;
}
.compare-table thead th:first-child{color:var(--muted);font-weight:600;}
.compare-table tbody th{font-weight:600;color:#334155;background:#fbfcff;width:22%;}
.compare-table tbody tr:last-child th,.compare-table tbody tr:last-child td{border-bottom:0;}
.compare-table tbody tr:hover td{background:#f8faff;}
.compare-table .is-pick{background:var(--amber-soft);}
.compare-table thead th.is-pick{background:rgba(232,160,32,.16);color:#8a5b02;}
.compare-table tbody tr:hover td.is-pick{background:rgba(232,160,32,.22);}
.pick-flag{
 display:inline-block;margin-left:6px;padding:2px 8px;border-radius:999px;
 background:var(--amber);color:#3a2500;font-size:11.5px;font-weight:700;vertical-align:middle;
}
.compare-note{margin-top:16px;font-size:13.5px;color:var(--muted);line-height:1.8;}

/* ---------- timeline ---------- */
.timeline{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;position:relative;}
.timeline::before{
 content:"";position:absolute;left:26px;right:26px;top:22px;height:2px;
 background:linear-gradient(90deg,rgba(59,91,219,.35),rgba(11,163,127,.35));border-radius:2px;
}
.timeline-item{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);padding:44px 18px 20px;box-shadow:var(--shadow-1);transition:transform var(--ease),box-shadow var(--ease);}
.timeline-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.timeline-dot{
 position:absolute;top:12px;left:18px;
 width:22px;height:22px;border-radius:50%;
 background:#fff;border:2px solid var(--brand);
 display:flex;align-items:center;justify-content:center;
 font-size:11px;font-weight:700;color:var(--brand);
}
.timeline-step{font-size:12px;font-weight:700;letter-spacing:1.2px;color:var(--mint);}
.timeline-item h3{margin-top:6px;font-size:15.5px;font-weight:700;color:var(--ink);line-height:1.45;}
.timeline-item p{margin-top:8px;font-size:13.5px;color:var(--muted);line-height:1.7;}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.news-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
 box-shadow:var(--shadow-1);overflow:hidden;
 transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#cfd9ef;}
.news-link{display:flex;flex-direction:column;height:100%;padding:22px;}
.news-cat{
 align-self:flex-start;
 padding:3px 10px;border-radius:999px;
 background:var(--brand-soft);color:var(--brand-dark);
 font-size:12px;font-weight:700;
}
.news-title{margin-top:12px;font-size:16.5px;font-weight:700;color:var(--ink);line-height:1.5;}
.news-excerpt{margin-top:9px;font-size:14px;color:var(--muted);line-height:1.75;flex:1;}
.news-meta{margin-top:14px;padding-top:12px;border-top:1px solid var(--line);font-size:12.5px;color:var(--muted-2);}
.empty-tip{
 padding:28px;border:1px dashed #cbd5e6;border-radius:var(--radius-lg);
 background:#fbfcff;color:var(--muted);text-align:center;font-size:14.5px;
}

/* ---------- promise ---------- */
.promise-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.promise-item{
 background:rgba(255,255,255,.05);
 border:1px solid rgba(255,255,255,.12);
 border-radius:var(--radius-lg);
 padding:22px;
 transition:background var(--ease),border-color var(--ease),transform var(--ease);
}
.promise-item:hover{background:rgba(255,255,255,.09);border-color:rgba(143,165,255,.45);transform:translateY(-3px);}
.promise-item h3{font-size:16px;font-weight:700;color:#fff;}
.promise-item p{margin-top:9px;font-size:13.8px;color:#a9b6d4;line-height:1.75;}
.promise-mark{font-size:12px;font-weight:700;letter-spacing:1.4px;color:#5df0b8;display:block;margin-bottom:10px;}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;max-width:900px;}
.faq-item{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
 box-shadow:var(--shadow-1);overflow:hidden;
 transition:border-color var(--ease),box-shadow var(--ease);
}
.faq-item[open]{border-color:rgba(59,91,219,.35);box-shadow:0 14px 30px -22px rgba(15,23,42,.5);}
.faq-item summary{
 list-style:none;cursor:pointer;
 padding:18px 52px 18px 22px;position:relative;
 font-size:16px;font-weight:700;color:var(--ink);line-height:1.5;
 transition:color var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand);}
.faq-item summary::after{
 content:"";position:absolute;right:22px;top:50%;width:10px;height:10px;
 border-right:2px solid var(--muted-2);border-bottom:2px solid var(--muted-2);
 transform:translateY(-70%) rotate(45deg);transition:transform var(--ease),border-color var(--ease);
}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(-135deg);border-color:var(--brand);}
.faq-answer{padding:0 22px 20px;font-size:14.5px;color:var(--muted);line-height:1.85;}

/* ---------- subscribe ---------- */
.subscribe-wrap{
 display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:center;
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-xl);
 padding:40px;box-shadow:var(--shadow-2);
}
.subscribe-wrap h2{font-size:26px;font-weight:800;color:var(--ink);line-height:1.4;letter-spacing:-.3px;}
.subscribe-wrap p{margin-top:12px;font-size:15px;color:var(--muted);line-height:1.8;}
.form-row{display:flex;gap:12px;flex-wrap:wrap;}
.form-row input[type="email"]{
 flex:1;min-width:200px;min-height:48px;padding:0 16px;
 border:1px solid var(--line);border-radius:var(--radius-sm);
 background:#fbfcff;color:var(--text);
 transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.form-row input[type="email"]::placeholder{color:var(--muted-2);}
.form-row input[type="email"]:focus{
 outline:none;border-color:var(--brand);background:#fff;
 box-shadow:0 0 0 4px rgba(59,91,219,.13);
}
.form-tip{margin-top:12px;font-size:13px;color:var(--muted-2);line-height:1.7;}
.form-stats{display:flex;gap:26px;margin-top:22px;flex-wrap:wrap;}
.form-stats div{font-size:13px;color:var(--muted);}
.form-stats b{display:block;font-size:20px;color:var(--brand-dark);letter-spacing:-.5px;}

/* ---------- footer ---------- */
.site-footer{background:#0c1322;color:#94a3b8;padding:56px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;padding-bottom:40px;}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{font-size:14px;line-height:1.85;color:#8fa0bd;max-width:320px;}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.3px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:#94a3b8;transition:color var(--ease),transform var(--ease);display:inline-block;}
.footer-col a:hover{color:#fff;transform:translateX(3px);}
.footer-bottom{
 border-top:1px solid rgba(255,255,255,.1);
 padding:20px 0 26px;
 display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
 font-size:13px;color:#7c8ba6;
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
 .hero-inner{grid-template-columns:1fr;gap:36px;padding-top:48px;padding-bottom:56px;}
 .hero h1{font-size:32px;}
 .hero-lead{max-width:none;}
 .metric-grid{grid-template-columns:repeat(2,1fr);}
 .matrix-grid{grid-template-columns:repeat(2,1fr);}
 .news-grid{grid-template-columns:repeat(2,1fr);}
 .promise-grid{grid-template-columns:repeat(2,1fr);}
 .timeline{grid-template-columns:repeat(2,1fr);}
 .timeline::before{display:none;}
 .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
 .subscribe-wrap{grid-template-columns:1fr;padding:32px;gap:24px;}
 .section{padding:56px 0;}
}
@media (max-width:900px){
 .nav-toggle{display:inline-flex;}
 .main-nav{
  position:absolute;top:64px;left:0;right:0;
  flex-direction:column;align-items:stretch;gap:2px;
  background:#fff;border-bottom:1px solid var(--line);
  padding:10px 24px 16px;margin-left:0;
  box-shadow:0 18px 30px -22px rgba(15,23,42,.7);
  display:none;
 }
 .main-nav.open{display:flex;}
 .nav-link{width:100%;padding:12px 14px;}
 .header-inner{gap:14px;}
 .header-actions{margin-left:auto;}
}
@media (max-width:768px){
 .container{padding:0 18px;}
 .hero h1{font-size:28px;line-height:1.34;}
 .hero-sub{font-size:15px;}
 .section-title{font-size:23px;}
 .metric-grid,.matrix-grid,.news-grid,.promise-grid,.timeline{grid-template-columns:1fr;}
 .footer-grid{grid-template-columns:1fr;gap:26px;}
 .footer-brand p{max-width:none;}
 .section{padding:48px 0;}
 .subscribe-wrap{padding:26px;}
 .subscribe-wrap h2{font-size:22px;}
 .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:520px){
 .header-actions .btn-sm{padding:0 12px;font-size:13px;}
 .logo-text{font-size:15.5px;}
 .hero-cta .btn{width:100%;}
 .metric-num{font-size:27px;}
 .pick-body{padding:18px;}
 .faq-item summary{padding:16px 46px 16px 18px;font-size:15px;}
 .faq-answer{padding:0 18px 18px;}
 .form-stats{gap:18px;}
}

/* roulang page: category2 */
:root{
 --brand:#3b5bdb;
 --brand-dark:#2a44ab;
 --brand-soft:#eaefff;
 --mint:#0ba37f;
 --mint-soft:#e2f7f1;
 --amber:#e8a020;
 --amber-soft:#fdf3e0;
 --ink:#0c1322;
 --ink-2:#111b2f;
 --text:#1e293b;
 --muted:#64748b;
 --muted-2:#94a3b8;
 --line:#e3e8f1;
 --bg:#f5f7fc;
 --surface:#ffffff;
 --radius-xl:18px;
 --radius-lg:14px;
 --radius-md:10px;
 --radius-sm:8px;
 --shadow-1:0 1px 2px rgba(15,23,42,.05),0 8px 22px -14px rgba(15,23,42,.28);
 --shadow-2:0 16px 40px -18px rgba(15,23,42,.42);
 --container:1180px;
 --ease:.22s cubic-bezier(.4,0,.2,1);
}
*,*::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","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
 font-size:16px;line-height:1.75;color:var(--text);background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font:inherit;}
:focus-visible{outline:3px solid rgba(59,91,219,.45);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(255,255,255,.92);
 backdrop-filter:blur(12px);
 border-bottom:1px solid var(--line);
 transition:box-shadow var(--ease),background var(--ease);
}
.site-header.scrolled{box-shadow:0 8px 24px -18px rgba(15,23,42,.6);}
.header-inner{display:flex;align-items:center;gap:28px;height:64px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
 width:34px;height:34px;border-radius:10px;
 background:linear-gradient(140deg,var(--brand),#6a83f0);
 color:#fff;font-size:16px;font-weight:700;
 display:flex;align-items:center;justify-content:center;
 box-shadow:0 6px 14px -8px rgba(59,91,219,.9);
}
.logo-text{font-size:17px;font-weight:700;letter-spacing:.4px;color:var(--ink);}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
 padding:8px 14px;border-radius:var(--radius-sm);
 font-size:15px;color:#475569;font-weight:500;
 transition:color var(--ease),background var(--ease);
 min-height:40px;display:inline-flex;align-items:center;
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft);}
.nav-link.active{color:var(--brand);background:var(--brand-soft);font-weight:600;}
.header-actions{display:flex;align-items:center;gap:10px;}
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 min-height:42px;padding:0 20px;border-radius:var(--radius-sm);
 font-size:15px;font-weight:600;letter-spacing:.2px;
 transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
 white-space:nowrap;text-align:center;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px -14px rgba(59,91,219,.95);}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 16px 26px -14px rgba(42,68,171,.9);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.45);}
.btn-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff;transform:translateY(-2px);}
.btn-outline{background:#fff;color:var(--brand);border:1px solid rgba(59,91,219,.35);}
.btn-outline:hover{background:var(--brand-soft);border-color:var(--brand);transform:translateY(-2px);}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}
.nav-toggle{
 display:none;width:40px;height:40px;border-radius:var(--radius-sm);
 border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative;transition:background var(--ease);}
.nav-toggle span::before,.nav-toggle span::after{
 content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);transition:transform var(--ease);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle.is-active span{background:transparent;}
.nav-toggle.is-active span::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-active span::after{transform:translateY(-6px) rotate(-45deg);}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;color:#fff;background:var(--ink);}
.hero-bg{
 position:absolute;inset:0;
 background-image:url("/assets/images/backpic/back-2.webp");
 background-size:cover;background-position:center;opacity:.36;
}
.hero::after{
 content:"";position:absolute;inset:0;
 background:linear-gradient(112deg,rgba(12,19,34,.97) 10%,rgba(12,19,34,.82) 54%,rgba(17,27,47,.62) 100%);
}
.hero-inner{
 position:relative;z-index:2;
 display:grid;grid-template-columns:1.1fr .9fr;gap:48px;
 padding-top:64px;padding-bottom:72px;align-items:center;
}
.hero-crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:#8f9dbb;}
.hero-crumb a{color:#b9c5dd;transition:color var(--ease);}
.hero-crumb a:hover{color:#fff;}
.hero-crumb span{color:#6f7d9b;}
.hero-badge{
 display:inline-flex;align-items:center;gap:8px;margin-top:20px;
 padding:6px 14px;border-radius:999px;
 background:rgba(232,160,32,.16);border:1px solid rgba(232,160,32,.45);
 color:#f6cd84;font-size:13px;font-weight:600;letter-spacing:.4px;
}
.hero-badge::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--amber);box-shadow:0 0 0 4px rgba(232,160,32,.2);}
.hero h1{margin-top:18px;font-size:38px;line-height:1.3;letter-spacing:-.6px;font-weight:800;}
.hero-sub{margin-top:14px;font-size:16.5px;color:#a9b6d4;font-weight:500;}
.hero-lead{margin-top:18px;font-size:15.5px;line-height:1.85;color:#c3cde2;max-width:600px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.tag{
 display:inline-flex;align-items:center;
 padding:5px 13px;border-radius:999px;
 font-size:13px;font-weight:600;
 background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);color:#d7dff0;
}
.tag-light{background:var(--brand-soft);color:var(--brand-dark);border-color:rgba(59,91,219,.16);}
.tag-mint{background:var(--mint-soft);color:#07775c;border-color:rgba(11,163,127,.2);}
.tag-amber{background:var(--amber-soft);color:#9a6a09;border-color:rgba(232,160,32,.28);}

/* hero 面板 */
.hero-panel{
 background:rgba(255,255,255,.97);
 border-radius:var(--radius-xl);
 box-shadow:0 30px 60px -30px rgba(4,10,25,.85);
 overflow:hidden;color:var(--text);
 border:1px solid rgba(255,255,255,.5);
}
.hero-panel-cover{height:158px;overflow:hidden;}
.hero-panel-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.hero-panel:hover .hero-panel-cover img{transform:scale(1.05);}
.hero-panel-body{padding:20px 22px 22px;}
.panel-top{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.panel-level{
 display:inline-flex;align-items:center;gap:8px;
 padding:5px 12px;border-radius:8px;
 background:linear-gradient(135deg,#1b2237,#2b3350);
 color:#f2cd8a;font-size:12.5px;font-weight:700;letter-spacing:.5px;
 border:1px solid rgba(232,160,32,.4);
}
.panel-level i{width:6px;height:6px;border-radius:50%;background:var(--amber);display:block;}
.panel-top small{font-size:12.5px;color:var(--muted-2);}
.hero-panel-body h2{margin-top:14px;font-size:18px;font-weight:700;color:var(--ink);line-height:1.45;}
.hero-panel-body>p{margin-top:6px;font-size:13.8px;color:var(--muted);line-height:1.7;}
.panel-steps{margin-top:16px;display:grid;gap:10px;}
.panel-step{
 display:flex;align-items:flex-start;gap:12px;
 padding:12px 14px;border-radius:var(--radius-md);
 background:var(--bg);border:1px solid var(--line);
}
.panel-step b{
 flex-shrink:0;width:26px;height:26px;border-radius:8px;
 background:var(--brand-soft);color:var(--brand-dark);
 font-size:12.5px;display:flex;align-items:center;justify-content:center;font-weight:800;
}
.panel-step div{font-size:13.6px;color:var(--muted);line-height:1.6;}
.panel-step strong{display:block;color:var(--ink);font-size:14px;font-weight:700;margin-bottom:2px;}
.panel-cta{margin-top:16px;}

/* ---------- section 基础 ---------- */
.section{padding:72px 0;}
.section-alt{background:var(--surface);}
.section-deep{background:var(--ink);color:#c3cde2;}
.section-head{max-width:760px;margin-bottom:36px;}
.eyebrow{
 display:inline-flex;align-items:center;gap:9px;
 font-size:12.5px;font-weight:700;letter-spacing:1.4px;
 color:var(--brand);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--brand);}
.section-head h2{margin-top:12px;font-size:28px;line-height:1.34;font-weight:800;color:var(--ink);letter-spacing:-.3px;}
.section-head p{margin-top:12px;font-size:15.5px;color:var(--muted);line-height:1.85;}
.section-deep .eyebrow{color:#8fa6ff;}
.section-deep .eyebrow::before{background:#8fa6ff;}
.section-deep .section-head h2{color:#fff;}
.section-deep .section-head p{color:#a9b6d4;}

/* ---------- 通用卡片 ---------- */
.card{
 background:var(--surface);border:1px solid var(--line);
 border-radius:var(--radius-lg);box-shadow:var(--shadow-1);
 transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#cdd8ee;}

/* ---------- 指标看板 ---------- */
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.metric-card{padding:26px 22px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-1);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);}
.metric-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#cdd8ee;}
.metric-card .num{font-size:34px;font-weight:800;line-height:1;letter-spacing:-1px;color:var(--brand);}
.metric-card .num small{font-size:14px;font-weight:700;margin-left:6px;color:var(--muted);letter-spacing:0;}
.metric-card h3{margin-top:14px;font-size:15.5px;font-weight:700;color:var(--ink);}
.metric-card p{margin-top:8px;font-size:13.8px;color:var(--muted);line-height:1.75;}

/* ---------- 技巧矩阵 ---------- */
.tip-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.tip-card{padding:28px 26px;}
.tip-icon{
 width:44px;height:44px;border-radius:12px;
 background:var(--brand-soft);color:var(--brand);
 display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.tip-icon svg{width:22px;height:22px;}
.tip-card h3{font-size:18px;font-weight:700;color:var(--ink);}
.tip-card p{margin-top:10px;font-size:14.5px;color:var(--muted);line-height:1.8;}
.tip-card .tag{margin-top:16px;}

.checklist{
 margin-top:22px;display:grid;grid-template-columns:.85fr 1.15fr;gap:0;
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
 box-shadow:var(--shadow-1);overflow:hidden;
}
.checklist-media{position:relative;min-height:230px;overflow:hidden;}
.checklist-media img{width:100%;height:100%;object-fit:cover;}
.checklist-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(12,19,34,.05),rgba(12,19,34,.45));}
.checklist-body{padding:28px 28px 30px;}
.checklist-body h3{font-size:18.5px;font-weight:700;color:var(--ink);}
.checklist-body>p{margin-top:8px;font-size:14.3px;color:var(--muted);}
.rule-list{margin-top:16px;display:grid;gap:10px;}
.rule-list li{
 display:flex;align-items:flex-start;gap:10px;
 font-size:14.2px;color:var(--text);line-height:1.7;
 padding-bottom:10px;border-bottom:1px dashed var(--line);
}
.rule-list li:last-child{border-bottom:0;padding-bottom:0;}
.rule-list li::before{
 content:"";flex-shrink:0;margin-top:8px;
 width:6px;height:6px;border-radius:50%;background:var(--mint);
}

/* ---------- 节奏对比 ---------- */
.compare-wrap{display:grid;grid-template-columns:1fr 1fr;gap:22px;}
.compare-card{padding:28px 26px;display:flex;flex-direction:column;}
.compare-card.is-steady{border-top:3px solid var(--mint);}
.compare-card.is-risk{border-top:3px solid var(--amber);}
.compare-head{display:flex;align-items:center;gap:10px;}
.compare-head h3{font-size:18.5px;font-weight:700;color:var(--ink);}
.spec-list{margin-top:16px;display:grid;gap:0;}
.spec-list li{
 display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
 padding:12px 0;border-bottom:1px dashed var(--line);
 font-size:14.2px;
}
.spec-list li:last-child{border-bottom:0;}
.spec-list li span:first-child{color:var(--muted);flex-shrink:0;}
.spec-list li span:last-child{font-weight:600;color:var(--ink);text-align:right;line-height:1.6;}
.compare-note{margin-top:18px;font-size:13.6px;color:var(--muted);line-height:1.75;padding-top:16px;border-top:1px solid var(--line);}

/* ---------- 里程碑 ---------- */
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.step{
 position:relative;padding:26px 22px 24px;
 background:rgba(255,255,255,.055);
 border:1px solid rgba(255,255,255,.13);
 border-radius:var(--radius-lg);
 transition:transform var(--ease),background var(--ease),border-color var(--ease);
}
.step:hover{transform:translateY(-3px);background:rgba(255,255,255,.09);border-color:rgba(143,166,255,.45);}
.step-index{
 display:inline-flex;align-items:center;justify-content:center;
 width:30px;height:30px;border-radius:9px;
 background:rgba(143,166,255,.18);color:#b9c8ff;
 font-size:13px;font-weight:800;
}
.step h3{margin-top:14px;font-size:16.5px;font-weight:700;color:#fff;}
.step span.step-time{display:block;margin-top:6px;font-size:12.5px;color:#8fa6ff;font-weight:600;letter-spacing:.4px;}
.step p{margin-top:10px;font-size:13.8px;color:#a9b6d4;line-height:1.75;}

/* ---------- 资讯列表 ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.post-card{display:flex;flex-direction:column;overflow:hidden;}
.post-thumb{display:block;aspect-ratio:16/10;overflow:hidden;background:var(--bg);}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease);}
.post-card:hover .post-thumb img{transform:scale(1.05);}
.post-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:9px;flex:1;}
.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:12.5px;color:var(--muted-2);}
.post-meta em{font-style:normal;padding:2px 9px;border-radius:999px;background:var(--brand-soft);color:var(--brand-dark);font-weight:700;font-size:12px;}
.post-body h3{font-size:16.5px;font-weight:700;line-height:1.5;color:var(--ink);}
.post-body h3 a{transition:color var(--ease);}
.post-body h3 a:hover{color:var(--brand);}
.post-body p{font-size:14px;color:var(--muted);line-height:1.75;}
.post-more{margin-top:auto;font-size:13.5px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px;}
.post-empty{
 padding:40px 24px;text-align:center;border:1px dashed var(--line);
 border-radius:var(--radius-lg);background:var(--bg);color:var(--muted);font-size:14.5px;
}
.preview-bar{
 margin-top:26px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
 padding:22px 26px;border-radius:var(--radius-lg);
 background:var(--brand-soft);border:1px solid rgba(59,91,219,.18);
}
.preview-bar h3{font-size:16.5px;font-weight:700;color:var(--brand-dark);}
.preview-bar p{margin-top:6px;font-size:14px;color:#41527d;}

/* ---------- 平台保障 ---------- */
.promise-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.promise-card{padding:26px 22px;}
.promise-card .p-ico{
 width:38px;height:38px;border-radius:10px;
 background:var(--mint-soft);color:#07775c;
 display:flex;align-items:center;justify-content:center;margin-bottom:14px;
}
.promise-card .p-ico svg{width:19px;height:19px;}
.promise-card h3{font-size:16px;font-weight:700;color:var(--ink);}
.promise-card p{margin-top:8px;font-size:13.8px;color:var(--muted);line-height:1.75;}

/* ---------- 频道矩阵 ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.channel-card{padding:26px 24px;display:flex;flex-direction:column;gap:10px;}
.ch-label{font-size:12px;font-weight:800;letter-spacing:1.4px;color:var(--muted-2);text-transform:uppercase;}
.channel-card h3{font-size:19px;font-weight:700;color:var(--ink);}
.channel-card p{font-size:14px;color:var(--muted);line-height:1.75;}
.ch-link{margin-top:auto;font-size:14.5px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px;}
.channel-card.current{border-color:rgba(59,91,219,.45);background:linear-gradient(180deg,#f7f9ff,#fff);}
.channel-card.current .ch-label{color:var(--brand);}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:900px;}
.faq-item{
 background:var(--surface);border:1px solid var(--line);
 border-radius:var(--radius-md);box-shadow:var(--shadow-1);overflow:hidden;
 transition:border-color var(--ease),box-shadow var(--ease);
}
.faq-item[open]{border-color:rgba(59,91,219,.35);box-shadow:var(--shadow-2);}
.faq-item summary{
 display:flex;align-items:center;justify-content:space-between;gap:16px;
 padding:18px 22px;font-size:15.5px;font-weight:600;color:var(--ink);
 cursor:pointer;list-style:none;min-height:44px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
 content:"+";flex-shrink:0;width:24px;height:24px;border-radius:7px;
 background:var(--brand-soft);color:var(--brand);
 display:flex;align-items:center;justify-content:center;
 font-size:17px;font-weight:700;line-height:1;transition:background var(--ease),color var(--ease);
}
.faq-item[open] summary::after{content:"−";background:var(--brand);color:#fff;}
.faq-body{padding:0 22px 20px;font-size:14.5px;color:var(--muted);line-height:1.85;}

/* ---------- 订阅 ---------- */
.subscribe-panel{
 display:grid;grid-template-columns:1.05fr .95fr;gap:38px;align-items:center;
 padding:44px;border-radius:var(--radius-xl);
 background:linear-gradient(135deg,#101a2e,#1b2745 70%,#223058);
 color:#fff;box-shadow:var(--shadow-2);
}
.subscribe-panel h2{font-size:26px;font-weight:800;line-height:1.35;letter-spacing:-.3px;}
.subscribe-panel p{margin-top:12px;font-size:14.8px;color:#b5c2da;line-height:1.8;}
.subscribe-form{display:flex;gap:10px;flex-wrap:wrap;}
.subscribe-form input{
 flex:1 1 220px;min-height:46px;padding:0 16px;
 border-radius:var(--radius-sm);border:1px solid rgba(255,255,255,.22);
 background:rgba(255,255,255,.09);color:#fff;
 transition:border-color var(--ease),background var(--ease);
}
.subscribe-form input::placeholder{color:#93a4c5;}
.subscribe-form input:focus{outline:none;border-color:#7d94ff;background:rgba(255,255,255,.14);}
.subscribe-form .btn{background:#fff;color:var(--brand-dark);box-shadow:none;}
.subscribe-form .btn:hover{background:#e8edff;color:var(--brand-dark);transform:translateY(-2px);}
.form-hint{margin-top:12px;font-size:13px;color:#8fa0c0;}
.form-msg{margin-top:10px;font-size:13.5px;color:#7dedc0;min-height:20px;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#a9b6d4;padding:56px 0 0;}
.footer-grid{
 display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;
 padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{margin-top:14px;font-size:14px;line-height:1.8;color:#93a2c2;max-width:320px;}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:.4px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:#93a2c2;transition:color var(--ease);}
.footer-col a:hover{color:#fff;}
.footer-bottom{
 display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
 padding:20px 0 26px;font-size:13px;color:#7c8bab;
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
 .hero-inner{grid-template-columns:1fr;gap:34px;padding-top:52px;padding-bottom:60px;}
 .hero h1{font-size:33px;}
 .metric-grid{grid-template-columns:repeat(2,1fr);}
 .promise-grid{grid-template-columns:repeat(2,1fr);}
 .post-grid{grid-template-columns:repeat(2,1fr);}
 .channel-grid{grid-template-columns:1fr 1fr;}
 .timeline{grid-template-columns:1fr 1fr;}
 .compare-wrap{grid-template-columns:1fr;}
 .checklist{grid-template-columns:1fr;}
 .checklist-media{min-height:180px;}
 .subscribe-panel{grid-template-columns:1fr;padding:34px;gap:26px;}
 .footer-grid{grid-template-columns:1fr 1fr;}
 .section{padding:60px 0;}
 .section-head h2{font-size:25px;}
}
@media (max-width:920px){
 .header-inner{justify-content:space-between;gap:14px;}
 .main-nav{
  position:fixed;top:64px;left:0;right:0;margin-left:0;
  flex-direction:column;align-items:stretch;gap:4px;
  padding:12px 20px 20px;background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 18px 30px -22px rgba(15,23,42,.7);
  display:none;
 }
 .main-nav.is-open{display:flex;}
 .nav-link{min-height:44px;padding:10px 14px;font-size:15.5px;}
 .nav-toggle{display:flex;}
 .header-actions .btn-sm{display:none;}
 .hero h1{font-size:30px;}
 .hero-lead{font-size:15px;}
 .tip-grid{grid-template-columns:1fr;}
}
@media (max-width:520px){
 .container{padding:0 16px;}
 .hero-inner{padding-top:40px;padding-bottom:48px;}
 .hero h1{font-size:26px;line-height:1.36;}
 .hero-sub{font-size:15px;}
 .hero-cta .btn{width:100%;}
 .section{padding:48px 0;}
 .section-head{margin-bottom:26px;}
 .section-head h2{font-size:22px;}
 .metric-grid{grid-template-columns:1fr;}
 .promise-grid{grid-template-columns:1fr;}
 .post-grid{grid-template-columns:1fr;}
 .channel-grid{grid-template-columns:1fr;}
 .timeline{grid-template-columns:1fr;}
 .footer-grid{grid-template-columns:1fr;gap:26px;}
 .subscribe-panel{padding:26px 20px;}
 .subscribe-panel h2{font-size:22px;}
 .subscribe-form .btn{width:100%;}
 .preview-bar{padding:18px 20px;}
 .faq-item summary{padding:16px 18px;font-size:15px;}
 .faq-body{padding:0 18px 18px;}
 .footer-bottom{justify-content:flex-start;}
}