/* roulang page: index */
/* ===================== 设计变量 ===================== */
:root{
  --brand:#ff4d2d;
  --brand-600:#e23c1d;
  --brand-50:#fff1ed;
  --accent:#4436d9;
  --accent-50:#eeecff;
  --ink:#0d1424;
  --ink-2:#39415a;
  --muted:#6f7791;
  --bg:#ffffff;
  --bg-soft:#f6f7fb;
  --bg-deep:#0d1424;
  --line:#e7e9f1;
  --line-2:#d8dce8;
  --r-xs:8px;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:22px;
  --r-full:999px;
  --shadow-xs:0 1px 2px rgba(13,20,36,.05);
  --shadow-sm:0 8px 20px -12px rgba(13,20,36,.22);
  --shadow-md:0 18px 38px -20px rgba(13,20,36,.30);
  --shadow-lg:0 40px 80px -40px rgba(13,20,36,.45);
  --container:1180px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ===================== 基础重置 ===================== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3{line-height:1.3;letter-spacing:-.01em}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
::selection{background:var(--brand);color:#fff}

/* ===================== 通用布局 ===================== */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:92px 0}
.section-soft{background:var(--bg-soft)}
.section-tight{padding:64px 0}
.section-head{max-width:780px;margin-bottom:44px}
.section-head h2{font-size:clamp(24px,3vw,34px);font-weight:800}
.section-head p{margin-top:14px;color:var(--muted);font-size:15.5px;line-height:1.85}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;flex-wrap:wrap;margin-bottom:44px}
.section-head-row .section-head{margin-bottom:0}

.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 13px;border-radius:var(--r-full);
  background:var(--brand-50);color:var(--brand-600);
  font-size:12.5px;font-weight:700;letter-spacing:.06em;
  margin-bottom:16px;
}
.tag.tag-accent{background:var(--accent-50);color:var(--accent)}
.tag.tag-dark{background:rgba(255,255,255,.12);color:#ffb8a6}

.badge{
  display:inline-flex;align-items:center;
  padding:4px 10px;border-radius:var(--r-full);
  background:var(--bg-soft);border:1px solid var(--line);
  font-size:12px;color:var(--ink-2);font-weight:600;
}
.badge-live{background:#eafaf0;border-color:#c9f0d7;color:#128a45}
.badge-live .dot{
  width:7px;height:7px;border-radius:50%;background:#18b45b;margin-right:6px;
  box-shadow:0 0 0 0 rgba(24,180,91,.55);animation:pulse 2s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(24,180,91,.5)}
  70%{box-shadow:0 0 0 9px rgba(24,180,91,0)}
  100%{box-shadow:0 0 0 0 rgba(24,180,91,0)}
}

/* ===================== 按钮 ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-sm);
  border:1px solid transparent;cursor:pointer;
  font-size:15px;font-weight:650;white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 12px 26px -14px rgba(255,77,45,.95)}
.btn-primary:hover{background:var(--brand-600);transform:translateY(-2px);box-shadow:0 18px 32px -14px rgba(255,77,45,.95)}
.btn-primary:active{transform:translateY(0);box-shadow:0 8px 18px -12px rgba(255,77,45,.9)}
.btn-ghost{background:#fff;border-color:var(--line-2);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink);background:#fff;transform:translateY(-2px)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#1d2740;transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--ink);box-shadow:var(--shadow-sm)}
.btn-light:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:10px}

/* ===================== 导航 ===================== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:saturate(180%) blur(16px);
  backdrop-filter:saturate(180%) blur(16px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;gap:16px;height:74px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:linear-gradient(140deg,var(--brand),#ff8055);
  display:grid;place-items:center;color:#fff;
  font-size:16px;font-weight:800;
  box-shadow:0 8px 18px -8px rgba(255,77,45,.85);
  transition:transform .25s var(--ease);
}
.brand:hover .brand-mark{transform:rotate(-6deg) scale(1.05)}
.brand-name{font-size:17px;font-weight:800;letter-spacing:.01em}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:14px}
.nav-links a{
  padding:9px 15px;border-radius:10px;
  font-size:14.5px;font-weight:600;color:var(--ink-2);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-links a:hover{background:var(--bg-soft);color:var(--ink)}
.nav-links a.active{background:var(--brand-50);color:var(--brand-600)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.cmd-search{position:relative;display:flex;align-items:center}
.cmd-search i{position:absolute;left:14px;font-size:13px;color:var(--muted);pointer-events:none}
.cmd-search input{
  width:238px;height:42px;padding:0 46px 0 38px;
  border-radius:12px;border:1px solid var(--line);
  background:var(--bg-soft);font-size:14px;
  transition:border-color .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease);
}
.cmd-search input::placeholder{color:#9aa2b8}
.cmd-search input:focus{
  outline:none;background:#fff;border-color:#ffc6b8;
  box-shadow:0 0 0 4px rgba(255,77,45,.12);
}
.cmd-search kbd{
  position:absolute;right:12px;
  font-family:inherit;font-size:11px;font-weight:700;color:var(--muted);
  background:#fff;border:1px solid var(--line);border-radius:6px;
  padding:2px 6px;pointer-events:none;
}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--ink);
  align-items:center;justify-content:center;cursor:pointer;font-size:16px;
}
.mobile-panel{display:none}

/* ===================== 首屏 ===================== */
.hero{
  position:relative;overflow:hidden;
  padding:78px 0 88px;
  background:
    radial-gradient(760px 380px at 88% -10%,rgba(255,77,45,.13),transparent 62%),
    radial-gradient(620px 340px at 4% 8%,rgba(68,54,217,.10),transparent 60%),
    #fff;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(13,20,36,.035) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(13,20,36,.035) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(circle at 50% 30%,#000,transparent 78%);
  mask-image:radial-gradient(circle at 50% 30%,#000,transparent 78%);
}
.hero-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.05fr .95fr;
  gap:64px;align-items:start;
}
.hero-copy{padding-top:8px}
.hero-live{
  display:inline-flex;align-items:center;gap:10px;flex-wrap:wrap;
  padding:7px 14px 7px 10px;border-radius:var(--r-full);
  background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-xs);
  font-size:12.5px;font-weight:600;color:var(--ink-2);margin-bottom:22px;
}
.hero-live .dot{
  width:8px;height:8px;border-radius:50%;background:#18b45b;
  box-shadow:0 0 0 0 rgba(24,180,91,.55);animation:pulse 2s infinite;
}
.hero-live em{font-style:normal;color:var(--brand-600)}
.hero h1{
  font-size:clamp(30px,4.6vw,52px);
  font-weight:900;letter-spacing:-.02em;line-height:1.16;
}
.hero h1 mark{
  background:linear-gradient(180deg,transparent 62%,rgba(255,77,45,.24) 62%);
  color:inherit;padding:0 2px;
}
.hero-lead{
  margin-top:20px;font-size:19px;font-weight:700;color:var(--ink-2);
  letter-spacing:-.01em;
}
.hero-text{margin-top:16px;color:var(--muted);font-size:15.5px;max-width:580px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-points span{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 13px;border-radius:var(--r-full);
  background:var(--bg-soft);border:1px solid var(--line);
  font-size:13px;font-weight:600;color:var(--ink-2);
}
.hero-points i{color:var(--brand);font-size:12px}

.lead-form{
  margin-top:30px;padding:24px;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--shadow-md);
  max-width:540px;
}
.lead-form h3{font-size:16px;font-weight:800}
.lead-form .form-sub{margin-top:6px;font-size:13px;color:var(--muted)}
.form-row{display:flex;gap:10px;margin-top:16px}
.form-row input{
  flex:1;height:48px;padding:0 16px;border-radius:var(--r-sm);
  border:1px solid var(--line-2);background:var(--bg-soft);font-size:14.5px;
  transition:border-color .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease);
}
.form-row input::placeholder{color:#9aa2b8}
.form-row input:focus{
  outline:none;background:#fff;border-color:#ffc6b8;
  box-shadow:0 0 0 4px rgba(255,77,45,.12);
}
.form-note{margin-top:12px;font-size:12.5px;color:var(--muted)}
.lead-form.is-done .form-note{color:#128a45;font-weight:600}

.hero-side{display:flex;flex-direction:column;gap:18px}
.doc-cover{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);padding:30px 28px 26px;
  background:linear-gradient(158deg,#101a33 0%,#1c2746 58%,#2a1a24 100%);
  color:#fff;box-shadow:var(--shadow-lg);
  transition:transform .35s var(--ease);
}
.doc-cover:hover{transform:translateY(-4px)}
.doc-cover::after{
  content:"";position:absolute;right:-70px;top:-70px;width:230px;height:230px;
  border-radius:50%;background:radial-gradient(circle,rgba(255,77,45,.42),transparent 68%);
}
.doc-cover .doc-kicker{
  display:inline-flex;align-items:center;gap:7px;
  padding:5px 12px;border-radius:var(--r-full);
  background:rgba(255,255,255,.1);font-size:12px;font-weight:700;letter-spacing:.06em;
  color:#ffc0b0;
}
.doc-cover h3{
  position:relative;margin-top:18px;
  font-size:26px;font-weight:900;letter-spacing:-.01em;line-height:1.32;
}
.doc-cover p{position:relative;margin-top:12px;font-size:13.5px;color:rgba(255,255,255,.68)}
.doc-meta{
  position:relative;display:flex;flex-wrap:wrap;gap:10px;
  margin-top:24px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
}
.doc-meta span{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;color:rgba(255,255,255,.8);font-weight:600;
}
.doc-meta i{color:#ff8b6b}
.doc-toc{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px 24px 20px;box-shadow:var(--shadow-sm);
}
.doc-toc h4{
  font-size:13px;font-weight:800;letter-spacing:.08em;color:var(--muted);
  text-transform:uppercase;
}
.doc-toc ul{margin-top:14px;display:flex;flex-direction:column;gap:2px}
.doc-toc li{
  display:flex;align-items:center;gap:12px;
  padding:9px 10px;border-radius:10px;
  font-size:14px;font-weight:600;color:var(--ink-2);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.doc-toc li:hover{background:var(--bg-soft);color:var(--ink)}
.doc-toc li b{
  font-size:12px;font-weight:800;color:var(--brand);
  background:var(--brand-50);border-radius:6px;padding:2px 7px;flex-shrink:0;
}
.doc-toc li em{margin-left:auto;font-style:normal;font-size:12.5px;color:var(--muted)}

/* ===================== 数据条 ===================== */
.statbar{background:var(--bg-deep);color:#fff;padding:38px 0}
.statbar-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.stat{
  padding:6px 22px;border-left:1px solid rgba(255,255,255,.14);
}
.stat:first-child{border-left:none;padding-left:0}
.stat strong{
  display:block;font-size:34px;font-weight:900;letter-spacing:-.02em;
  background:linear-gradient(120deg,#fff,#ffb8a6);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat span{display:block;margin-top:4px;font-size:13.5px;color:rgba(255,255,255,.6)}

/* ===================== 问题陈述 ===================== */
.problem-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:64px;align-items:start}
.problem-lead h2{font-size:clamp(24px,3vw,34px);font-weight:800}
.problem-lead p{margin-top:16px;color:var(--muted);font-size:15.5px}
.problem-note{
  margin-top:26px;padding:16px 18px;border-radius:var(--r-md);
  background:#fff;border:1px dashed var(--line-2);
  font-size:14px;color:var(--ink-2);
}
.problem-list{display:flex;flex-direction:column;gap:14px}
.problem-item{
  display:flex;gap:18px;padding:22px 24px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.problem-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm);border-color:var(--line-2)}
.problem-item .idx{
  flex-shrink:0;font-size:13px;font-weight:900;color:var(--brand);
  width:34px;height:34px;border-radius:10px;background:var(--brand-50);
  display:grid;place-items:center;
}
.problem-item h3{font-size:16px;font-weight:750}
.problem-item p{margin-top:6px;font-size:14px;color:var(--muted)}

/* ===================== 内容方向矩阵 ===================== */
.dir-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.dir-card{
  position:relative;padding:26px 24px 24px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.dir-card::before{
  content:"";position:absolute;left:0;top:0;height:3px;width:0;
  background:linear-gradient(90deg,var(--brand),#ff9b7c);
  transition:width .35s var(--ease);
}
.dir-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:var(--line-2)}
.dir-card:hover::before{width:100%}
.dir-icon{
  width:44px;height:44px;border-radius:13px;display:grid;place-items:center;
  background:var(--brand-50);color:var(--brand);font-size:18px;margin-bottom:16px;
}
.dir-card h3{font-size:17px;font-weight:800}
.dir-card p{margin-top:9px;font-size:14px;color:var(--muted)}
.dir-foot{margin-top:16px;display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--muted);font-weight:600}

/* ===================== 编辑流程 ===================== */
.flow{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;position:relative}
.flow::before{
  content:"";position:absolute;top:34px;left:12%;right:12%;height:1px;
  background:repeating-linear-gradient(90deg,var(--line-2) 0 8px,transparent 8px 16px);
}
.flow-step{position:relative;text-align:center;padding:0 8px}
.flow-num{
  position:relative;z-index:1;margin:0 auto;
  width:68px;height:68px;border-radius:22px;
  background:#fff;border:1px solid var(--line);
  display:grid;place-items:center;
  font-size:20px;font-weight:900;color:var(--brand);
  box-shadow:var(--shadow-sm);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.flow-step:hover .flow-num{transform:translateY(-5px) rotate(-4deg);box-shadow:var(--shadow-md)}
.flow-step h3{margin-top:20px;font-size:17px;font-weight:800}
.flow-step p{margin-top:10px;font-size:14px;color:var(--muted);text-align:left}

/* ===================== 前后对比 ===================== */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.cmp-card{padding:28px 26px;border-radius:var(--r-lg);border:1px solid var(--line);background:#fff}
.cmp-card.before{background:var(--bg-soft)}
.cmp-card.after{border-color:#ffd6c9;background:linear-gradient(180deg,#fff7f4,#fff)}
.cmp-head{display:flex;align-items:center;gap:10px;font-size:13px;font-weight:800;letter-spacing:.06em}
.cmp-card.before .cmp-head{color:var(--muted)}
.cmp-card.after .cmp-head{color:var(--brand-600)}
.cmp-card h3{margin-top:16px;font-size:21px;font-weight:850;line-height:1.42}
.cmp-card p{margin-top:12px;font-size:14.5px;color:var(--muted)}
.cmp-list{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.cmp-list li{display:flex;gap:10px;font-size:14px;color:var(--ink-2);align-items:flex-start}
.cmp-list i{margin-top:5px;font-size:12px}
.cmp-card.before .cmp-list i{color:#b8bfd1}
.cmp-card.after .cmp-list i{color:var(--brand)}

/* ===================== 常见卡住点 ===================== */
.stuck-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.stuck-card{
  padding:24px 24px 22px;border-radius:var(--r-md);
  background:#fff;border:1px solid var(--line);
  display:flex;gap:16px;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.stuck-card:hover{border-color:#ffd6c9;box-shadow:var(--shadow-sm)}
.stuck-card .mark{
  flex-shrink:0;width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;font-size:15px;
  background:var(--accent-50);color:var(--accent);
}
.stuck-card h3{font-size:16px;font-weight:750}
.stuck-card p{margin-top:8px;font-size:14px;color:var(--muted)}

/* ===================== 专题成长路径 ===================== */
.timeline{position:relative;padding-left:30px}
.timeline::before{
  content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,var(--brand),#ffd0c2 70%,transparent);
  border-radius:2px;
}
.tl-item{position:relative;padding:0 0 32px 24px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-30px;top:7px;
  width:16px;height:16px;border-radius:50%;
  background:#fff;border:3px solid var(--brand);
  box-shadow:0 0 0 4px rgba(255,77,45,.1);
}
.tl-item time{
  display:inline-block;font-size:12.5px;font-weight:800;color:var(--brand-600);
  background:var(--brand-50);border-radius:var(--r-full);padding:3px 11px;
}
.tl-item h3{margin-top:10px;font-size:17.5px;font-weight:800}
.tl-item p{margin-top:8px;font-size:14.5px;color:var(--muted);max-width:660px}

/* ===================== 热门专题 ===================== */
.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.topic-card{
  display:flex;flex-direction:column;
  padding:24px;border-radius:var(--r-md);
  background:#fff;border:1px solid var(--line);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease);
}
.topic-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md)}
.topic-top{display:flex;align-items:center;justify-content:space-between;gap:10px}
.topic-card h3{margin-top:16px;font-size:17.5px;font-weight:820;line-height:1.45}
.topic-card p{margin-top:10px;font-size:14px;color:var(--muted);flex:1}
.topic-foot{
  margin-top:18px;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:12.5px;color:var(--muted);font-weight:600;
}
.topic-foot em{font-style:normal;color:var(--brand-600)}

/* ===================== 更新日历 ===================== */
.cal-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:24px;align-items:start}
.cal-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px;box-shadow:var(--shadow-xs);
}
.cal-tabs{display:inline-flex;padding:4px;background:var(--bg-soft);border-radius:var(--r-sm);gap:4px}
.cal-tabs span{
  padding:6px 16px;border-radius:9px;font-size:13.5px;font-weight:700;color:var(--muted);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.cal-tabs span.on{background:#fff;color:var(--ink);box-shadow:var(--shadow-xs)}
.cal-list{margin-top:22px;display:flex;flex-direction:column}
.cal-list li{
  display:flex;align-items:center;gap:18px;
  padding:15px 4px;border-bottom:1px solid var(--line);
  transition:padding-left .2s var(--ease);
}
.cal-list li:last-child{border-bottom:none}
.cal-list li:hover{padding-left:10px}
.cal-day{
  flex-shrink:0;width:76px;font-size:13px;font-weight:800;color:var(--ink);
  display:flex;align-items:center;gap:6px;
}
.cal-list li span.cal-title{font-size:14.5px;color:var(--ink-2);font-weight:600}
.cal-list li em{
  margin-left:auto;font-style:normal;font-size:12.5px;font-weight:700;color:var(--brand-600);
  background:var(--brand-50);border-radius:var(--r-full);padding:3px 10px;flex-shrink:0;
}
.cal-side{
  background:linear-gradient(170deg,#101a33,#1c2746);
  border-radius:var(--r-lg);padding:26px 24px;color:#fff;
  box-shadow:var(--shadow-md);
}
.cal-side h3{font-size:18px;font-weight:850}
.cal-side p{margin-top:10px;font-size:13.5px;color:rgba(255,255,255,.66)}
.remind-box{
  margin-top:20px;padding:16px;border-radius:var(--r-md);
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:14px;
}
.remind-box span{font-size:13.5px;font-weight:600}
.switch{
  width:50px;height:28px;border-radius:var(--r-full);border:none;cursor:pointer;
  background:rgba(255,255,255,.2);position:relative;flex-shrink:0;
  transition:background .25s var(--ease);
}
.switch::after{
  content:"";position:absolute;top:3px;left:3px;width:22px;height:22px;border-radius:50%;
  background:#fff;transition:transform .25s var(--ease);
}
.switch.on{background:var(--brand)}
.switch.on::after{transform:translateX(22px)}
.cal-side .btn{margin-top:20px;width:100%}

/* ===================== 精选推荐 ===================== */
.rank-list{display:flex;flex-direction:column;gap:2px}
.rank-item{
  display:flex;align-items:center;gap:20px;
  padding:20px 22px;border-radius:var(--r-md);
  background:#fff;border:1px solid transparent;
  transition:background .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.rank-item:hover{background:#fff;transform:translateX(6px);box-shadow:var(--shadow-sm);border-color:var(--line)}
.rank-num{
  flex-shrink:0;width:42px;font-size:22px;font-weight:900;color:var(--line-2);
  font-variant-numeric:tabular-nums;
}
.rank-item:nth-child(1) .rank-num{color:var(--brand)}
.rank-item:nth-child(2) .rank-num{color:#ff8355}
.rank-item:nth-child(3) .rank-num{color:#ffab8e}
.rank-body{flex:1;min-width:0}
.rank-body h3{font-size:16px;font-weight:750;line-height:1.5}
.rank-body p{margin-top:5px;font-size:13.5px;color:var(--muted)}
.rank-tag{
  flex-shrink:0;font-size:12.5px;font-weight:700;color:var(--ink-2);
  border:1px solid var(--line);border-radius:var(--r-full);padding:4px 12px;
}

/* ===================== 适用人群 ===================== */
.fit-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.fit-card{padding:28px 26px;border-radius:var(--r-lg);border:1px solid var(--line);background:#fff}
.fit-card.no{background:var(--bg-soft)}
.fit-card h3{font-size:18px;font-weight:850;display:flex;align-items:center;gap:10px}
.fit-card h3 i{font-size:16px}
.fit-card.yes h3 i{color:#18b45b}
.fit-card.no h3 i{color:#98a0b6}
.fit-card p{margin-top:12px;font-size:14.5px;color:var(--muted)}
.fit-list{margin-top:20px;display:flex;flex-direction:column;gap:12px}
.fit-list li{
  display:flex;gap:11px;align-items:flex-start;font-size:14.5px;color:var(--ink-2);
  padding:12px 14px;background:#fff;border-radius:var(--r-sm);border:1px solid var(--line);
}
.fit-card.no .fit-list li{background:#fff}
.fit-list i{margin-top:5px;font-size:12px;flex-shrink:0}
.fit-card.yes .fit-list i{color:#18b45b}
.fit-card.no .fit-list i{color:#a9b0c2}

/* ===================== 用户口碑 ===================== */
.voice-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.voice-card{
  padding:24px;border-radius:var(--r-md);
  background:#fff;border:1px solid var(--line);
  transition:transform .26s var(--ease),box-shadow .26s var(--ease);
}
.voice-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm)}
.voice-card .quote{font-size:16px;color:var(--ink);font-weight:500;line-height:1.85}
.voice-card .who{
  margin-top:16px;display:flex;align-items:center;gap:10px;
  font-size:13px;color:var(--muted);font-weight:600;
}
.voice-card .who .avat{
  width:34px;height:34px;border-radius:50%;
  background:linear-gradient(140deg,#ffd9ce,#ffeaea);
  display:grid;place-items:center;color:var(--brand-600);font-weight:800;font-size:13px;
}

/* ===================== 案例故事 ===================== */
.case-card{
  display:grid;grid-template-columns:.9fr 1.1fr;gap:0;
  border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);background:#fff;
}
.case-visual{
  padding:36px 32px;color:#fff;
  background:linear-gradient(160deg,#ff4d2d,#ff7a4d 55%,#4436d9);
  display:flex;flex-direction:column;justify-content:space-between;gap:24px;
}
.case-visual .cv-top{font-size:12.5px;font-weight:800;letter-spacing:.1em;color:rgba(255,255,255,.85)}
.case-visual strong{font-size:52px;font-weight:900;letter-spacing:-.03em;line-height:1}
.case-visual strong small{font-size:16px;font-weight:700;margin-left:6px}
.case-visual p{font-size:13.5px;color:rgba(255,255,255,.82)}
.case-body{padding:32px 34px}
.case-body h3{font-size:22px;font-weight:850;line-height:1.45}
.case-body .case-meta{margin-top:10px;font-size:13px;color:var(--muted);font-weight:600}
.case-body p{margin-top:16px;font-size:14.5px;color:var(--ink-2)}
.case-body p b{color:var(--ink)}

/* ===================== 观点解读 ===================== */
.view-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.view-card{
  padding:26px 24px;border-radius:var(--r-md);
  background:#fff;border:1px solid var(--line);
  position:relative;
  transition:transform .26s var(--ease),box-shadow .26s var(--ease);
}
.view-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm)}
.view-card .qmark{font-size:26px;color:var(--brand);opacity:.35;line-height:1}
.view-card h3{margin-top:12px;font-size:17px;font-weight:820;line-height:1.55}
.view-card p{margin-top:12px;font-size:14px;color:var(--muted)}

/* ===================== 最新资讯 ===================== */
.news-list{border-top:1px solid var(--line)}
.news-item{
  display:flex;align-items:center;gap:22px;
  padding:22px 6px;border-bottom:1px solid var(--line);
  transition:padding-left .22s var(--ease),background .22s var(--ease);
}
.news-item:hover{padding-left:14px;background:var(--bg-soft)}
.news-date{
  flex-shrink:0;width:88px;font-size:13px;font-weight:700;color:var(--muted);
  font-variant-numeric:tabular-nums;
}
.news-body{flex:1;min-width:0}
.news-body h3{font-size:16px;font-weight:730;line-height:1.55}
.news-body p{margin-top:5px;font-size:13.5px;color:var(--muted)}
.news-item .badge{flex-shrink:0}

/* ===================== 分类入口 ===================== */
.entry-card{
  display:grid;grid-template-columns:1.25fr .75fr;gap:36px;align-items:center;
  padding:40px;border-radius:var(--r-lg);
  background:linear-gradient(140deg,#fff5f2,#ffffff 55%,#f2f1ff);
  border:1px solid #ffded4;
}
.entry-card h2{font-size:clamp(22px,2.6vw,30px);font-weight:850;line-height:1.4}
.entry-card p{margin-top:14px;font-size:15px;color:var(--muted);max-width:640px}
.entry-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:20px}
.entry-actions{display:flex;flex-direction:column;gap:12px}

/* ===================== 快速解答 ===================== */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-md);
  background:#fff;margin-bottom:12px;overflow:hidden;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.faq-item:hover{border-color:var(--line-2);box-shadow:var(--shadow-xs)}
.faq-item[open]{border-color:#ffd6c9;box-shadow:var(--shadow-sm)}
.faq-item summary{
  list-style:none;cursor:pointer;
  padding:20px 24px;display:flex;align-items:center;gap:16px;
  font-size:16px;font-weight:750;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  margin-left:auto;font-size:12px;color:var(--brand);
  transition:transform .25s var(--ease);
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .faq-body{padding:0 24px 22px;font-size:14.5px;color:var(--muted);max-width:720px}

/* ===================== 收口条 ===================== */
.cta-band{
  background:var(--bg-deep);color:#fff;
  border-radius:var(--r-lg);
  padding:52px 48px;
  display:grid;grid-template-columns:1.3fr .7fr;gap:36px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;bottom:-110px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,77,45,.35),transparent 70%);
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:880;position:relative}
.cta-band p{margin-top:14px;font-size:15px;color:rgba(255,255,255,.68);position:relative;max-width:640px}
.cta-band .cta-side{position:relative;display:flex;flex-direction:column;gap:12px}

/* ===================== 页脚 ===================== */
.site-footer{background:#0a1120;color:rgba(255,255,255,.7);padding:66px 0 0;margin-top:0}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand .brand-name{color:#fff}
.footer-brand p{margin-top:16px;font-size:13.5px;color:rgba(255,255,255,.55);max-width:320px}
.footer-col h4{font-size:14px;font-weight:800;color:#fff;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:13.5px;color:rgba(255,255,255,.6);transition:color .2s var(--ease),padding-left .2s var(--ease)}
.footer-col a:hover{color:#fff;padding-left:4px}
.footer-col li span{font-size:13.5px;color:rgba(255,255,255,.55)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 0 30px;font-size:12.5px;color:rgba(255,255,255,.42);
}

/* ===================== 响应式 ===================== */
@media (max-width:1100px){
  .hero-grid{grid-template-columns:1fr;gap:48px}
  .hero-text{max-width:none}
  .lead-form{max-width:none}
  .statbar-grid{grid-template-columns:repeat(2,1fr);gap:26px}
  .stat:nth-child(3){border-left:none;padding-left:0}
  .dir-grid,.topic-grid,.view-grid{grid-template-columns:repeat(2,1fr)}
  .cal-grid{grid-template-columns:1fr}
  .entry-card{grid-template-columns:1fr;gap:26px;padding:32px}
}

@media (max-width:960px){
  .nav-links,.cmd-search{display:none}
  .nav-toggle{display:inline-flex}
  body.nav-open .mobile-panel{
    display:block;position:absolute;top:74px;left:0;right:0;
    background:#fff;border-bottom:1px solid var(--line);
    padding:14px 24px 22px;box-shadow:var(--shadow-md);
  }
  .mobile-panel .m-links{display:flex;flex-direction:column;gap:2px;margin-bottom:14px}
  .mobile-panel .m-links a{
    padding:12px 14px;border-radius:11px;font-size:15px;font-weight:650;color:var(--ink-2);
  }
  .mobile-panel .m-links a.active{background:var(--brand-50);color:var(--brand-600)}
  .mobile-panel .cmd-search{display:flex}
  .mobile-panel .cmd-search input{width:100%}
  .problem-grid{grid-template-columns:1fr;gap:36px}
  .flow{grid-template-columns:1fr;gap:34px}
  .flow::before{display:none}
  .flow-step{text-align:left;display:flex;gap:20px;align-items:flex-start}
  .flow-num{margin:0;flex-shrink:0}
  .flow-step p{text-align:left}
  .compare{grid-template-columns:1fr}
  .stuck-grid{grid-template-columns:1fr}
  .fit-grid{grid-template-columns:1fr}
  .voice-grid{grid-template-columns:1fr}
  .case-card{grid-template-columns:1fr}
  .cta-band{grid-template-columns:1fr;gap:26px;padding:40px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}

@media (max-width:768px){
  .container{padding:0 18px}
  .section{padding:64px 0}
  .hero{padding:52px 0 62px}
  .hero-lead{font-size:17px}
  .doc-cover{padding:24px 22px}
  .doc-cover h3{font-size:22px}
  .stat strong{font-size:28px}
  .dir-grid,.topic-grid,.view-grid{grid-template-columns:1fr}
  .rank-item{gap:14px;padding:16px 14px}
  .rank-num{width:34px;font-size:19px}
  .news-item{flex-wrap:wrap;gap:10px}
  .news-date{width:auto}
  .case-visual{padding:28px 24px}
  .case-body{padding:26px 22px}
  .cal-panel{padding:20px}
  .cal-list li{flex-wrap:wrap;gap:10px}
  .cal-list li em{margin-left:0}
}

@media (max-width:520px){
  .section{padding:52px 0}
  .hero h1{font-size:27px}
  .brand-name{font-size:15.5px}
  .statbar-grid{grid-template-columns:1fr;gap:20px}
  .stat{border-left:none;padding-left:0;border-top:1px solid rgba(255,255,255,.12);padding-top:16px}
  .stat:first-child{border-top:none;padding-top:0}
  .form-row{flex-direction:column}
  .form-row .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .cta-band{padding:32px 22px}
  .entry-card{padding:24px 20px}
  .doc-toc{padding:18px}
  .doc-toc li{flex-wrap:wrap}
  .doc-toc li em{margin-left:0}
}

/* roulang page: category1 */
:root{
 --brand:#ff4d2d;
 --brand-600:#e23c1d;
 --brand-50:#fff1ed;
 --accent:#4436d9;
 --accent-50:#eeecff;
 --ink:#0d1424;
 --ink-2:#39415a;
 --muted:#6f7791;
 --bg:#ffffff;
 --bg-soft:#f6f7fb;
 --bg-deep:#0d1424;
 --line:#e7e9f1;
 --line-2:#d8dce8;
 --r-xs:8px;
 --r-sm:12px;
 --r-md:16px;
 --r-lg:22px;
 --r-full:999px;
 --shadow-xs:0 1px 2px rgba(13,20,36,.05);
 --shadow-sm:0 8px 20px -12px rgba(13,20,36,.22);
 --shadow-md:0 18px 38px -20px rgba(13,20,36,.30);
 --shadow-lg:0 40px 80px -40px rgba(13,20,36,.45);
 --container:1180px;
 --ease:cubic-bezier(.22,.61,.36,1);
}
/* ===================== 基础 ===================== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",sans-serif;
 font-size:16px;
 line-height:1.75;
 color:var(--ink);
 background:var(--bg);
 -webkit-font-smoothing:antialiased;
 text-rendering:optimizeLegibility;
}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
a:hover{color:inherit}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(68,54,217,.35);outline-offset:2px;border-radius:8px}
/* ===================== 布局 ===================== */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-tight{padding:60px 0}
.section-soft{background:var(--bg-soft)}
.section-line{border-top:1px solid var(--line)}
.section-head{max-width:780px;margin-bottom:42px}
.section-head h2{font-size:clamp(24px,3vw,34px);font-weight:800;line-height:1.3;letter-spacing:-.015em}
.section-head p{margin-top:14px;color:var(--muted);font-size:15.5px;line-height:1.85}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;flex-wrap:wrap;margin-bottom:42px}
.section-head-row .section-head{margin-bottom:0}
.tag{
 display:inline-flex;align-items:center;gap:7px;
 padding:6px 13px;border-radius:var(--r-full);
 background:var(--brand-50);color:var(--brand-600);
 font-size:12.5px;font-weight:700;letter-spacing:.06em;
 margin-bottom:16px;
}
.tag.tag-accent{background:var(--accent-50);color:var(--accent)}
.tag.tag-dark{background:rgba(255,255,255,.12);color:#ffb8a6}
.badge{
 display:inline-flex;align-items:center;gap:6px;
 padding:4px 10px;border-radius:var(--r-full);
 background:var(--bg-soft);border:1px solid var(--line);
 font-size:12px;color:var(--ink-2);font-weight:600;
}
.badge-live{background:#eafaf0;border-color:#c9f0d7;color:#128a45}
.badge-live .dot{
 width:7px;height:7px;border-radius:50%;background:#18b45b;
 box-shadow:0 0 0 0 rgba(24,180,91,.55);animation:pulse 2s infinite;
}
@keyframes pulse{
 0%{box-shadow:0 0 0 0 rgba(24,180,91,.5)}
 70%{box-shadow:0 0 0 9px rgba(24,180,91,0)}
 100%{box-shadow:0 0 0 0 rgba(24,180,91,0)}
}
/* ===================== 按钮 ===================== */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 height:46px;padding:0 22px;border-radius:var(--r-sm);
 border:1px solid transparent;cursor:pointer;
 font-size:15px;font-weight:650;line-height:1;white-space:nowrap;
 text-decoration:none;
 transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 12px 26px -14px rgba(255,77,45,.95)}
.btn-primary:hover{background:var(--brand-600);color:#fff;transform:translateY(-2px);box-shadow:0 18px 32px -14px rgba(255,77,45,.95)}
.btn-primary:active{transform:translateY(0);box-shadow:0 8px 18px -12px rgba(255,77,45,.9)}
.btn-ghost{background:#fff;border-color:var(--line-2);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink);color:var(--ink);transform:translateY(-2px)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#1d2740;color:#fff;transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--ink);box-shadow:var(--shadow-sm)}
.btn-light:hover{transform:translateY(-2px);color:var(--ink);box-shadow:var(--shadow-md)}
.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:10px}
/* ===================== 导航 ===================== */
.site-header{
 position:sticky;top:0;z-index:80;
 background:rgba(255,255,255,.88);
 -webkit-backdrop-filter:saturate(180%) blur(16px);
 backdrop-filter:saturate(180%) blur(16px);
 border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;gap:16px;height:74px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
 width:36px;height:36px;border-radius:11px;
 background:linear-gradient(140deg,var(--brand),#ff8055);
 display:grid;place-items:center;color:#fff;
 font-size:16px;font-weight:800;
 box-shadow:0 8px 18px -8px rgba(255,77,45,.85);
 transition:transform .25s var(--ease);
}
.brand:hover .brand-mark{transform:rotate(-6deg) scale(1.05)}
.brand-name{font-size:17px;font-weight:800;letter-spacing:.01em;color:var(--ink)}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:14px}
.nav-links a{
 padding:9px 15px;border-radius:10px;
 font-size:14.5px;font-weight:600;color:var(--ink-2);
 transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-links a:hover{background:var(--bg-soft);color:var(--ink)}
.nav-links a.active{background:var(--brand-50);color:var(--brand-600)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.cmd-search{position:relative;display:flex;align-items:center}
.cmd-search i{position:absolute;left:14px;font-size:13px;color:var(--muted);pointer-events:none}
.cmd-search input{
 width:238px;height:42px;padding:0 46px 0 38px;
 border:1px solid var(--line);border-radius:12px;
 background:var(--bg-soft);font-size:14px;color:var(--ink);
 transition:border-color .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease);
}
.cmd-search input::placeholder{color:#9aa2b8}
.cmd-search input:focus{outline:none;background:#fff;border-color:#ffc6b8;box-shadow:0 0 0 4px rgba(255,77,45,.12)}
.cmd-search kbd{
 position:absolute;right:12px;font-family:inherit;font-size:11px;font-weight:700;color:var(--muted);
 background:#fff;border:1px solid var(--line);border-radius:6px;padding:2px 6px;pointer-events:none;
}
.nav-toggle{
 display:none;width:44px;height:44px;border-radius:12px;
 border:1px solid var(--line);background:#fff;color:var(--ink);
 align-items:center;justify-content:center;cursor:pointer;font-size:16px;
}
.mobile-panel{display:none;border-top:1px solid var(--line);background:#fff;padding:14px 24px 20px}
.mobile-panel.open{display:block}
.mobile-panel a{display:block;padding:12px 14px;border-radius:12px;font-weight:700;color:var(--ink-2)}
.mobile-panel a.active{background:var(--brand-50);color:var(--brand-600)}
.mobile-panel .mobile-search{margin-top:10px}
.mobile-panel .mobile-search input{
 width:100%;height:44px;border-radius:12px;border:1px solid var(--line);
 background:var(--bg-soft);padding:0 16px;font-size:14px;
}
/* ===================== 频道首屏 ===================== */
.channel-hero{
 position:relative;overflow:hidden;
 padding:64px 0 56px;
 background:
 radial-gradient(680px 320px at 92% -20%,rgba(255,77,45,.14),transparent 64%),
 radial-gradient(520px 260px at 4% 110%,rgba(68,54,217,.10),transparent 62%),
 linear-gradient(180deg,#ffffff,#f8f9fd);
 border-bottom:1px solid var(--line);
}
.channel-hero::after{
 content:"";position:absolute;right:-120px;top:-120px;width:320px;height:320px;
 border-radius:50%;border:1px dashed rgba(255,77,45,.28);pointer-events:none;
}
.ch-hero-copy{position:relative;z-index:1}
.channel-hero h1{
 font-size:clamp(28px,4vw,46px);
 font-weight:850;line-height:1.22;letter-spacing:-.025em;
 margin-top:6px;
}
.channel-hero h1 em{font-style:normal;color:var(--brand)}
.ch-lead{margin-top:18px;font-size:16px;line-height:1.9;color:var(--ink-2);max-width:640px}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chip{
 display:inline-flex;align-items:center;gap:7px;
 height:38px;padding:0 16px;border-radius:var(--r-full);
 border:1px solid var(--line);background:#fff;
 font-size:13.5px;font-weight:650;color:var(--ink-2);cursor:pointer;
 transition:all .2s var(--ease);
}
.chip:hover{border-color:var(--brand);color:var(--brand-600);transform:translateY(-2px)}
.chip.active{background:var(--ink);border-color:var(--ink);color:#fff;box-shadow:var(--shadow-sm)}
.ch-stats{
 display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;
 background:rgba(255,255,255,.82);
 border:1px solid var(--line);border-radius:var(--r-lg);
 padding:22px;box-shadow:var(--shadow-md);
 position:relative;z-index:1;
}
.ch-stat{
 border-radius:var(--r-md);background:#fff;border:1px solid var(--line);
 padding:16px 16px 14px;transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.ch-stat:hover{transform:translateY(-4px);border-color:#ffd3c7;box-shadow:var(--shadow-sm)}
.ch-stat b{display:block;font-size:26px;font-weight:850;letter-spacing:-.02em}
.ch-stat b span{font-size:14px;font-weight:700;color:var(--muted);margin-left:3px}
.ch-stat small{display:block;margin-top:4px;font-size:12.5px;color:var(--muted);letter-spacing:.04em}
/* ===================== 实时状态条 ===================== */
.ticker{
 background:var(--ink);color:#fff;overflow:hidden;
 border-bottom:1px solid rgba(255,255,255,.08);
}
.ticker-track{
 display:flex;width:max-content;
 animation:marquee 34s linear infinite;
}
.ticker:hover .ticker-track{animation-play-state:paused}
.ticker-item{
 display:inline-flex;align-items:center;gap:10px;
 padding:13px 34px;font-size:13.5px;color:rgba(255,255,255,.78);white-space:nowrap;
}
.ticker-item i{color:#ff8a6c;font-size:12px}
.ticker-item b{color:#fff;font-weight:700}
@keyframes marquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}
/* ===================== 热点速览列表 ===================== */
.hot-list{border-top:1px solid var(--line)}
.hot-item{
 display:grid;grid-template-columns:64px 1fr auto;gap:20px;align-items:start;
 padding:24px 18px;border-bottom:1px solid var(--line);
 border-radius:var(--r-sm);
 transition:background .22s var(--ease),transform .22s var(--ease);
}
.hot-item:hover{background:var(--bg-soft);transform:translateX(4px)}
.hot-no{
 font-size:24px;font-weight:850;line-height:1.1;color:var(--line-2);
 font-variant-numeric:tabular-nums;letter-spacing:-.03em;
}
.hot-item.is-top .hot-no{color:var(--brand)}
.hot-title{font-size:17.5px;font-weight:750;line-height:1.5;letter-spacing:-.01em}
.hot-desc{margin-top:7px;color:var(--muted);font-size:14.5px;line-height:1.8}
.hot-meta{display:flex;align-items:center;gap:10px;margin-top:12px;flex-wrap:wrap}
.hot-side{text-align:right;white-space:nowrap;padding-top:4px}
.hot-time{display:block;font-size:13px;color:var(--muted);font-weight:600}
.hot-heat{display:block;margin-top:6px;font-size:13px;font-weight:750;color:var(--brand-600)}
/* ===================== 专题卡片 ===================== */
.topic-card{
 position:relative;background:#fff;border:1px solid var(--line);
 border-radius:var(--r-lg);padding:26px 24px 22px;height:100%;
 overflow:hidden;
 transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.topic-card::before{
 content:"";position:absolute;left:0;top:0;height:4px;width:100%;
 background:linear-gradient(90deg,var(--brand),#ff9b76);
 transform:scaleX(.24);transform-origin:left;
 transition:transform .35s var(--ease);
}
.topic-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:#ffd3c7}
.topic-card:hover::before{transform:scaleX(1)}
.topic-card.alt::before{background:linear-gradient(90deg,var(--accent),#8d82ff)}
.topic-icon{
 width:44px;height:44px;border-radius:13px;display:grid;place-items:center;
 background:var(--brand-50);color:var(--brand-600);font-size:17px;margin-bottom:16px;
}
.topic-card.alt .topic-icon{background:var(--accent-50);color:var(--accent)}
.topic-title{font-size:18px;font-weight:780;line-height:1.45;letter-spacing:-.01em}
.topic-desc{margin-top:10px;color:var(--muted);font-size:14.5px;line-height:1.8;min-height:78px}
.topic-foot{
 display:flex;align-items:center;justify-content:space-between;gap:12px;
 margin-top:18px;padding-top:16px;border-top:1px dashed var(--line-2);
 font-size:13px;color:var(--muted);
}
.topic-foot b{color:var(--ink);font-weight:750}
/* ===================== 榜单排行 ===================== */
.rank-panel{
 background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
 padding:10px 26px;box-shadow:var(--shadow-sm);
}
.rank-row{
 display:grid;grid-template-columns:44px minmax(0,1fr) 150px 74px;
 gap:18px;align-items:center;
 padding:18px 0;border-bottom:1px solid var(--line);
}
.rank-row:last-child{border-bottom:none}
.rank-idx{
 width:32px;height:32px;border-radius:10px;display:grid;place-items:center;
 background:var(--bg-soft);border:1px solid var(--line);
 font-size:14px;font-weight:800;color:var(--ink-2);
}
.rank-row:nth-child(1) .rank-idx{background:var(--brand);border-color:var(--brand);color:#fff}
.rank-row:nth-child(2) .rank-idx{background:#fff1ed;border-color:#ffd3c7;color:var(--brand-600)}
.rank-row:nth-child(3) .rank-idx{background:#fff7ed;border-color:#ffe3bd;color:#c2730a}
.rank-name{font-size:15.5px;font-weight:700;line-height:1.5}
.rank-name small{display:block;margin-top:4px;font-size:12.5px;color:var(--muted);font-weight:500}
.rank-bar{height:8px;border-radius:var(--r-full);background:var(--bg-soft);overflow:hidden;border:1px solid var(--line)}
.rank-bar span{display:block;height:100%;border-radius:var(--r-full);background:linear-gradient(90deg,var(--brand),#ff9b76);width:0;animation:grow 1.1s var(--ease) forwards}
.rank-val{text-align:right;font-size:15px;font-weight:800;color:var(--brand-600);font-variant-numeric:tabular-nums}
@keyframes grow{from{width:0}to{width:var(--w,60%)}}
/* ===================== 话题索引 ===================== */
.tag-cloud{display:flex;flex-wrap:wrap;gap:12px}
.tag-cloud a{
 display:inline-flex;align-items:center;gap:8px;
 padding:11px 18px;border-radius:var(--r-full);
 background:#fff;border:1px solid var(--line);
 font-size:14px;font-weight:600;color:var(--ink-2);
 transition:all .22s var(--ease);
}
.tag-cloud a span{font-size:12px;color:var(--muted);font-weight:600}
.tag-cloud a:hover{
 background:var(--ink);border-color:var(--ink);color:#fff;transform:translateY(-3px);
 box-shadow:var(--shadow-sm);
}
.tag-cloud a:hover span{color:rgba(255,255,255,.7)}
/* ===================== 更新节奏 ===================== */
.timeline{position:relative;padding-left:34px}
.timeline::before{
 content:"";position:absolute;left:9px;top:8px;bottom:8px;width:2px;
 background:linear-gradient(180deg,var(--brand),rgba(68,54,217,.35),var(--line));
 border-radius:2px;
}
.tl-item{position:relative;padding:6px 0 30px}
.tl-dot{
 position:absolute;left:-34px;top:12px;width:20px;height:20px;border-radius:50%;
 background:#fff;border:2px solid var(--brand);display:grid;place-items:center;
}
.tl-dot::after{content:"";width:8px;height:8px;border-radius:50%;background:var(--brand)}
.tl-item.accent .tl-dot{border-color:var(--accent)}
.tl-item.accent .tl-dot::after{background:var(--accent)}
.tl-time{font-size:13px;font-weight:800;letter-spacing:.08em;color:var(--brand-600)}
.tl-item.accent .tl-time{color:var(--accent)}
.tl-title{margin-top:6px;font-size:17.5px;font-weight:780;line-height:1.5}
.tl-desc{margin-top:8px;color:var(--muted);font-size:14.5px;line-height:1.8;max-width:620px}
/* ===================== 深度解读 ===================== */
.feature-card{
 display:grid;grid-template-columns:118px 1fr;gap:22px;
 background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
 padding:22px;height:100%;
 transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.feature-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:#d9d6ff}
.feature-thumb{
 border-radius:var(--r-md);min-height:118px;
 display:grid;place-items:center;color:#fff;font-size:26px;
 background:linear-gradient(150deg,var(--brand),#ff8f68);
 transition:transform .35s var(--ease);
}
.feature-card:hover .feature-thumb{transform:scale(.97) rotate(-2deg)}
.feature-card.alt .feature-thumb{background:linear-gradient(150deg,var(--accent),#7d73ff)}
.feature-card.deep .feature-thumb{background:linear-gradient(150deg,#0d1424,#3b4a75)}
.feature-title{font-size:17px;font-weight:780;line-height:1.5;letter-spacing:-.01em}
.feature-desc{margin-top:9px;color:var(--muted);font-size:14.5px;line-height:1.8}
.feature-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:14px}
/* ===================== 订阅转化 ===================== */
.cta-panel{
 position:relative;overflow:hidden;
 background:var(--bg-deep);color:#fff;
 border-radius:var(--r-lg);
 padding:52px 48px;
 box-shadow:var(--shadow-lg);
}
.cta-panel::before{
 content:"";position:absolute;right:-90px;top:-110px;width:320px;height:320px;border-radius:50%;
 background:radial-gradient(circle,rgba(255,77,45,.45),transparent 68%);
}
.cta-panel::after{
 content:"";position:absolute;left:-70px;bottom:-140px;width:280px;height:280px;border-radius:50%;
 background:radial-gradient(circle,rgba(68,54,217,.5),transparent 70%);
}
.cta-copy{position:relative;z-index:1}
.cta-copy h2{font-size:clamp(23px,2.8vw,32px);font-weight:830;line-height:1.35;letter-spacing:-.02em}
.cta-copy p{margin-top:14px;color:rgba(255,255,255,.72);font-size:15px;line-height:1.85;max-width:560px}
.sub-form{display:flex;gap:10px;margin-top:26px;max-width:520px}
.sub-form input{
 flex:1;height:50px;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.18);
 background:rgba(255,255,255,.08);padding:0 18px;font-size:14.5px;color:#fff;
 transition:border-color .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease);
}
.sub-form input::placeholder{color:rgba(255,255,255,.45)}
.sub-form input:focus{outline:none;background:rgba(255,255,255,.14);border-color:rgba(255,138,108,.8);box-shadow:0 0 0 4px rgba(255,77,45,.16)}
.sub-form .btn{height:50px}
.cta-note{margin-top:14px;font-size:12.5px;color:rgba(255,255,255,.5)}
.cta-side{position:relative;z-index:1;display:grid;gap:14px}
.cta-fact{
 border:1px solid rgba(255,255,255,.14);border-radius:var(--r-md);
 background:rgba(255,255,255,.05);padding:18px 20px;
}
.cta-fact b{display:block;font-size:22px;font-weight:830}
.cta-fact small{display:block;margin-top:4px;font-size:12.5px;color:rgba(255,255,255,.6)}
/* ===================== FAQ ===================== */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{
 background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
 padding:20px 24px;
 transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-item[open]{border-color:#ffd3c7;box-shadow:var(--shadow-sm)}
.faq-item summary{
 display:flex;align-items:center;justify-content:space-between;gap:18px;
 cursor:pointer;font-size:16px;font-weight:730;line-height:1.6;
 list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary i{
 flex-shrink:0;width:28px;height:28px;border-radius:9px;
 display:grid;place-items:center;font-size:12px;
 background:var(--brand-50);color:var(--brand-600);
 transition:transform .28s var(--ease);
}
.faq-item[open] summary i{transform:rotate(45deg)}
.faq-body{margin-top:14px;padding-top:14px;border-top:1px dashed var(--line-2);color:var(--muted);font-size:14.8px;line-height:1.85}
/* ===================== 页脚 ===================== */
.site-footer{background:var(--bg-deep);color:rgba(255,255,255,.72);margin-top:0}
.footer-grid{
 display:grid;grid-template-columns:1.7fr 1fr 1fr 1.3fr;gap:44px;
 padding:66px 0 42px;
}
.footer-brand .brand{margin-bottom:18px}
.footer-brand .brand-name{color:#fff}
.footer-brand p{font-size:14px;line-height:1.85;max-width:360px;color:rgba(255,255,255,.6)}
.footer-col h4{font-size:14px;font-weight:800;color:#fff;margin-bottom:16px;letter-spacing:.04em}
.footer-col ul{display:grid;gap:11px}
.footer-col a,.footer-col span{font-size:13.8px;color:rgba(255,255,255,.6);transition:color .2s var(--ease)}
.footer-col a:hover{color:#ff8a6c}
.footer-bottom{
 display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
 border-top:1px solid rgba(255,255,255,.1);
 padding:22px 0;font-size:13px;color:rgba(255,255,255,.5);
}
/* ===================== 响应式 ===================== */
@media (max-width:1024px){
 .section{padding:72px 0}
 .cmd-search input{width:186px}
 .footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:34px}
 .rank-row{grid-template-columns:44px minmax(0,1fr) 110px 66px;gap:14px}
 .cta-panel{padding:44px 34px}
}
@media (max-width:768px){
 .section{padding:58px 0}
 .nav-links{display:none}
 .nav-toggle{display:inline-flex}
 .cmd-search{display:none}
 .channel-hero{padding:46px 0 40px}
 .ch-stats{grid-template-columns:repeat(2,minmax(0,1fr));padding:18px;margin-top:28px}
 .hot-item{grid-template-columns:42px 1fr;gap:14px;padding:20px 12px}
 .hot-side{grid-column:2;text-align:left;padding-top:0}
 .hot-time,.hot-heat{display:inline-block;margin-right:14px}
 .rank-row{grid-template-columns:38px minmax(0,1fr) 60px;gap:12px}
 .rank-bar{display:none}
 .feature-card{grid-template-columns:1fr;gap:16px}
 .feature-thumb{min-height:96px}
 .cta-panel{padding:36px 24px;border-radius:var(--r-md)}
 .sub-form{flex-direction:column;max-width:100%}
 .sub-form .btn{width:100%}
 .footer-grid{grid-template-columns:1fr 1fr;gap:30px;padding:52px 0 34px}
 .timeline{padding-left:28px}
 .tl-dot{left:-28px}
}
@media (max-width:520px){
 .container{padding:0 18px}
 .nav-inner{height:66px}
 .brand-name{font-size:16px}
 .channel-hero h1{font-size:25px}
 .ch-stats{grid-template-columns:1fr 1fr;gap:10px}
 .ch-stat b{font-size:22px}
 .section-head-row{margin-bottom:30px}
 .hot-title{font-size:16px}
 .rank-panel{padding:6px 16px}
 .tag-cloud a{padding:9px 14px;font-size:13px}
 .footer-grid{grid-template-columns:1fr;gap:26px}
 .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px}
}

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