/* TunMo世界 · 详情页共享样式（与首页 landing.html 同一设计系统） */
:root{
  --bg:#f5f7fb; --bg2:#eef1f8;
  --border:#e3e8f0; --border2:#cdd5e0;
  --text:#0f1b2d; --text2:#4b5a70; --text3:#8a97a8;
  --accent:#2563eb; --accent2:#3b82f6;
  --grad:linear-gradient(135deg,#2563eb 0%,#7c3aed 55%,#0891b2 100%);
  --tag-bg:rgba(37,99,235,.08); --tag-bd:rgba(37,99,235,.16);
  --hover:rgba(37,99,235,.35);
  --radius:18px; --radius-sm:12px;
  --shadow:0 1px 3px rgba(15,27,45,.06),0 1px 2px rgba(15,27,45,.04);
  --shadow-md:0 14px 34px -16px rgba(37,99,235,.22);
  --shadow-lg:0 34px 80px -34px rgba(37,99,235,.38);
  --ring:0 0 0 1px rgba(37,99,235,.14),0 10px 34px -14px rgba(37,99,235,.35);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Inter',-apple-system,'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;
  background:var(--bg);color:var(--text);line-height:1.7;font-size:15px;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(1100px 560px at 85% -6%,rgba(59,130,246,.24),transparent 62%),
    radial-gradient(900px 480px at 3% 0%,rgba(8,145,178,.20),transparent 55%),
    radial-gradient(760px 520px at 8% 92%,rgba(124,58,237,.18),transparent 60%),
    radial-gradient(720px 440px at 94% 86%,rgba(6,182,212,.14),transparent 58%),
    linear-gradient(160deg,#eef3fb 0%,#e9eef8 50%,#eef2fa 100%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background-image:
    linear-gradient(rgba(37,99,235,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(37,99,235,.04) 1px,transparent 1px);
  background-size:46px 46px;
  -webkit-mask-image:linear-gradient(180deg,#000 0%,transparent 70%);
  mask-image:linear-gradient(180deg,#000 0%,transparent 70%);
}
a{color:var(--accent);text-decoration:none}
img{max-width:100%}
.wrap{max-width:1200px;margin:0 auto;padding:0 32px}

/* 导航 */
.nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);background:rgba(255,255,255,.78);border-bottom:1px solid var(--border)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:66px;gap:16px}
.logo{display:flex;align-items:center;gap:11px;font-weight:800;font-size:16px;color:var(--text)}
.logo .mark{width:38px;height:38px;display:grid;place-items:center;flex-shrink:0}
.logo .mark img{width:100%;height:100%;display:block}
.logo small{display:block;font-weight:500;font-size:11px;color:var(--text3);line-height:1.1}
.nav-links{display:flex;gap:22px;font-size:14px;color:var(--text2)}
.nav-links a{color:var(--text2);white-space:nowrap}
.nav-links a:hover{color:var(--accent)}
.nav-links a.on{color:var(--accent);font-weight:700}
.nav-cta{display:flex;gap:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;border-radius:11px;font-weight:600;font-size:14px;cursor:pointer;border:1px solid transparent;transition:.2s;white-space:nowrap}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 24px -8px rgba(37,99,235,.55)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 12px 30px -8px rgba(37,99,235,.7)}
.btn-ghost{background:#fff;color:var(--text);border-color:var(--border2)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-lg{padding:14px 30px;font-size:16px}

/* 二级导航（模块内导航） */
.subnav{position:sticky;top:66px;z-index:40;background:rgba(255,255,255,.9);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.subnav-in{display:flex;align-items:center;gap:6px;height:48px;overflow-x:auto;white-space:nowrap}
.subnav-in a{flex:none;padding:6px 13px;border-radius:999px;font-size:13px;color:var(--text2);transition:.2s}
.subnav-in a:hover{color:var(--accent);background:var(--tag-bg)}
.subnav-in a.on{color:var(--accent);background:var(--tag-bg);font-weight:700}

/* 分区 */
.section{padding:96px 0;position:relative}
.section.alt{background:linear-gradient(180deg,rgba(255,255,255,.6),rgba(255,255,255,.05))}
.tag{display:inline-flex;align-items:center;gap:7px;padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;color:var(--accent);background:var(--tag-bg);border:1px solid var(--tag-bd);margin-bottom:18px}
.tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
.head{max-width:840px;margin-bottom:56px}
.head h2{font-size:38px;font-weight:800;letter-spacing:-1px;line-height:1.18;margin-bottom:16px}
.head p{font-size:16px;color:var(--text2)}
.head.center{margin-left:auto;margin-right:auto;text-align:center}
.head .hl{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* Hero */
.hero{position:relative;padding:104px 0 96px;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:url('/static/img/hero-bg.jpg') center/cover no-repeat}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(239,243,251,.97) 0%,rgba(239,243,251,.86) 36%,rgba(239,243,251,.32) 66%,rgba(239,243,251,.06) 100%)}
.hero .wrap{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:1.04fr .96fr;gap:56px;align-items:center}
.badge{display:inline-flex;align-items:center;gap:8px;padding:7px 15px;border-radius:999px;font-size:13px;font-weight:600;color:var(--accent);background:#fff;border:1px solid var(--border);box-shadow:var(--shadow);margin-bottom:24px}
.badge .dot{width:8px;height:8px;border-radius:50%;background:var(--accent2);box-shadow:0 0 0 4px var(--tag-bg)}
.hero h1{font-size:50px;font-weight:800;letter-spacing:-1.8px;line-height:1.1;margin-bottom:22px}
.hero h1 .hl{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .sub{font-size:17px;color:var(--text2);max-width:560px;margin-bottom:32px}
.hero-stats{display:flex;gap:36px;margin-top:40px;flex-wrap:wrap}
.hs b{font-size:30px;font-weight:800;letter-spacing:-1px;display:block;line-height:1;color:var(--text)}
.hs b em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hs span{font-size:13px;color:var(--text3)}
.hero-visual img{width:100%;border-radius:20px;box-shadow:var(--shadow-lg);display:block;border:1px solid var(--border)}

/* 通用卡片 */
.grid{display:grid;gap:22px}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);transition:.25s;position:relative}
.card:hover{transform:translateY(-4px);border-color:var(--hover);box-shadow:var(--ring)}
.card .ic{width:46px;height:46px;border-radius:12px;background:var(--grad);display:grid;place-items:center;color:#fff;margin-bottom:16px;font-size:18px;font-weight:700}
.card h3{font-size:18px;font-weight:700;margin-bottom:8px}
.card p{font-size:14px;color:var(--text2)}

/* 能力卡（g3） */
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.value{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);transition:.25s}
.value:hover{transform:translateY(-4px);box-shadow:var(--ring);border-color:var(--hover)}
.value .ic{width:44px;height:44px;border-radius:12px;background:var(--grad);display:grid;place-items:center;color:#fff;font-size:17px;font-weight:700;margin-bottom:14px}
.value h3{font-size:16px;font-weight:700;margin-bottom:6px}
.value p{font-size:13px;color:var(--text2)}

/* 步骤 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.step{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);transition:.25s;position:relative}
.step:hover{transform:translateY(-4px);border-color:var(--hover);box-shadow:var(--ring)}
.step:not(:last-child)::after{content:"";position:absolute;top:24px;right:-22px;width:22px;height:2px;background:linear-gradient(90deg,var(--accent),var(--accent2));opacity:.5}
.step .no{width:48px;height:48px;border-radius:12px;background:var(--grad);color:#fff;display:grid;place-items:center;font-weight:800;font-size:18px;margin-bottom:16px;box-shadow:var(--shadow-md)}
.step h3{font-size:17px;font-weight:700;margin-bottom:9px}
.step p{font-size:13.5px;color:var(--text2)}

/* 对比表格 */
.compare{background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-md);overflow:hidden}
.compare table{width:100%;border-collapse:collapse}
.compare th,.compare td{padding:17px 22px;text-align:left;border-bottom:1px solid var(--border);font-size:14px}
.compare thead th{background:var(--grad);color:#fff;font-weight:700;font-size:14.5px}
.compare tbody th{font-weight:700;color:var(--text);width:150px;background:#f8fafd}
.compare tbody td:nth-child(4){background:var(--tag-bg)}
.compare tbody tr:last-child td,.compare tbody tr:last-child th{border-bottom:none}
.compare .win{color:var(--accent);font-weight:700}
.compare .lose{color:#9aa6b5}

/* 场景卡（带图） */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.scene-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.25s;display:flex;flex-direction:column}
.scene-card:hover{transform:translateY(-5px);border-color:var(--hover);box-shadow:var(--ring)}
.scene-card .ph{height:130px;overflow:hidden}
.scene-card .ph img{width:100%;height:100%;object-fit:cover;display:block}
.scene-card .body{padding:16px 18px}
.scene-card h3{font-size:15.5px;margin-bottom:5px}
.scene-card p{font-size:12.5px;color:var(--text2)}

/* CTA 大卡 */
.cta-box{background:var(--grad);border-radius:24px;padding:60px 40px;text-align:center;color:#fff;box-shadow:var(--shadow-lg);position:relative;overflow:hidden}
.cta-box::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 20% 20%,rgba(255,255,255,.22),transparent 45%),radial-gradient(circle at 80% 80%,rgba(6,182,212,.35),transparent 50%)}
.cta-box h2{font-size:32px;font-weight:800;letter-spacing:-1px;margin-bottom:12px;position:relative}
.cta-box p{font-size:16px;opacity:.92;margin-bottom:28px;position:relative}
.cta-box .btn-white{background:#fff;color:var(--accent)}

/* Footer */
.footer{background:#0f1b2d;color:#cbd5e1;padding:56px 0 30px}
.footer a{color:#cbd5e1}
.footer h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;margin-bottom:36px}
.footer-grid a{display:block;padding:16px;border-radius:12px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);transition:.22s}
.footer-grid a:hover{background:var(--grad);border-color:transparent;color:#fff;transform:translateY(-3px)}
.footer-grid a.on{background:var(--grad);border-color:transparent;color:#fff}
.footer-grid a b{display:block;font-size:14px;color:#fff;margin-bottom:3px}
.footer-grid a span{font-size:11.5px;color:#94a3b8}
.footer .bar{border-top:1px solid rgba(255,255,255,.1);padding-top:22px;font-size:12px;color:#64748b;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
.footer-contact{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;padding:20px 0 24px;font-size:12.5px;color:#94a3b8;line-height:1.8}
.footer-contact b{display:block;color:#e2e8f0;font-size:12px;margin-bottom:4px;letter-spacing:.5px}
.footer-contact a{color:#e2e8f0}

/* FAQ */
.faq{max-width:880px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius-sm);padding:22px 26px;margin-bottom:14px;box-shadow:var(--shadow);transition:.22s}
.faq-item:hover{border-color:var(--hover);box-shadow:var(--ring)}
.faq-item h3{font-size:16px;font-weight:700;margin-bottom:9px;display:flex;align-items:flex-start;gap:11px}
.faq-item h3::before{content:"Q";flex:none;width:24px;height:24px;border-radius:7px;background:var(--grad);color:#fff;display:grid;place-items:center;font-size:13px;font-weight:700;margin-top:2px}
.faq-item p{font-size:14px;color:var(--text2)}

/* 动效 */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .6s ease,transform .6s ease}
.reveal.on{opacity:1;transform:none}

@media(max-width:980px){
  .hero-grid{grid-template-columns:1fr}
  .hero h1{font-size:38px}
  .value-grid,.scene-grid,.steps{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(3,1fr)}
  .nav-links{display:none}
  .step:not(:last-child)::after{display:none}
}
@media(max-width:600px){
  .value-grid,.scene-grid,.steps,.g3,.g4{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .footer-contact{grid-template-columns:repeat(2,1fr)}
}