:root{
  --brand:#2b3f9e;
  --brand-deep:#1c2c73;
  --brand-soft:#eef1fd;
  --accent:#5b6ef0;
  --ink:#141a33;
  --ink-2:#3d4560;
  --ink-3:#6b7390;
  --line:#e4e7f2;
  --bg:#f7f8fc;
  --white:#ffffff;
  --radius:14px;
  --maxw:1200px;
  --shadow-sm:0 1px 2px rgba(20,26,51,.05),0 4px 16px rgba(20,26,51,.05);
  --shadow-md:0 8px 30px rgba(28,44,115,.10);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box;min-width:0}
p,div,span,li,td,dd{overflow-wrap:break-word;word-break:break-word}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--white);line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img,svg{max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 40px}
section{scroll-margin-top:90px}

/* ============ 通用 ============ */
.kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--brand);background:var(--brand-soft);border:1px solid #dbe1fa;padding:6px 14px;border-radius:999px}
.kicker::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand)}
.sec{padding:110px 0}
.sec-alt{background:var(--bg)}
.sec-head{max-width:720px;margin-bottom:56px}
.sec-head h2{font-size:clamp(30px,4vw,46px);font-weight:700;line-height:1.25;letter-spacing:-.01em;margin:20px 0 16px}
.sec-head p{font-size:17px;color:var(--ink-3)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 26px;border-radius:10px;font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;transition:all .25s ease;white-space:nowrap}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px);box-shadow:0 8px 20px rgba(43,63,158,.25)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.text-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--brand);font-size:15px}
.text-link svg{transition:transform .25s}
.text-link:hover svg{transform:translateX(4px)}
.fade-up{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.fade-up.in{opacity:1;transform:none}

/* ============ 导航 ============ */
.header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,255,255,.85);backdrop-filter:blur(0px);-webkit-backdrop-filter:blur(0px);transition:all .3s ease}
.header.scrolled{background:rgba(255,255,255,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line);box-shadow:0 2px 16px rgba(20,26,51,.05)}
.nav-inner{max-width:var(--maxw);margin:0 auto;padding:0 40px;height:72px;display:flex;align-items:center;gap:40px}
.logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;letter-spacing:-.01em;flex-shrink:0}
.logo-mark{width:32px;height:32px;border-radius:8px;background:var(--brand);display:grid;place-items:center;flex-shrink:0}
.nav-links{display:flex;gap:6px;margin-left:auto}
.nav-links a{font-size:14.5px;color:var(--ink-2);padding:8px 13px;border-radius:8px;transition:all .2s}
.nav-links a:hover{color:var(--brand);background:var(--brand-soft)}
.nav-cta{margin-left:12px;flex-shrink:0}
.nav-cta .btn{min-height:40px;padding:0 20px;font-size:14px}
.burger{display:none;width:44px;height:44px;border:none;background:none;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px;margin-left:auto}
.burger span{display:block;width:22px;height:2px;background:var(--ink);border-radius:2px;transition:all .3s}
.burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-menu{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 20px 40px rgba(20,26,51,.08);padding:12px 24px 20px}
.mobile-menu.open{display:block}
.mobile-menu a{display:block;padding:13px 8px;font-size:15px;color:var(--ink-2);border-bottom:1px solid var(--line)}
.mobile-menu a:last-of-type{border-bottom:none}
.mobile-menu .btn{width:100%;margin-top:14px}
.mobile-menu .btn-primary{background:var(--brand);color:#fff}
.mobile-menu .btn-primary:hover{background:var(--brand-deep);color:#fff}

/* ============ Hero ============ */
.hero{padding:190px 0 120px;position:relative;overflow:hidden}
.hero-bg{position:absolute;inset:0;pointer-events:none;background:radial-gradient(900px 500px at 85% 10%,rgba(91,110,240,.08),transparent 60%),radial-gradient(700px 420px at 5% 90%,rgba(43,63,158,.06),transparent 60%)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center;position:relative}
.hero h1{font-size:clamp(40px,5.4vw,68px);font-weight:800;line-height:1.15;letter-spacing:-.02em;margin:26px 0 8px}
.hero h1 em{font-style:normal;color:var(--brand)}
.hero-sub{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.35;color:var(--ink-2);margin-bottom:22px}
.hero-desc{font-size:16.5px;color:var(--ink-3);max-width:520px;margin-bottom:36px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap}
.hero-visual{position:relative}
.hero-visual svg{width:100%;height:auto;display:block}
.net-node{filter:drop-shadow(0 6px 16px rgba(43,63,158,.14))}
.flow-line{stroke-dasharray:6 8;animation:dash 3.5s linear infinite}
@keyframes dash{to{stroke-dashoffset:-56}}
.float-a{animation:floatA 5s ease-in-out infinite}
.float-b{animation:floatA 6.5s ease-in-out infinite reverse}
@keyframes floatA{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}

/* ============ 数据区 ============ */
.stats{padding:0 0 100px}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.stat{background:#fff;padding:34px 30px}
.stat b{display:block;font-size:34px;font-weight:800;letter-spacing:-.02em;color:var(--brand);line-height:1.2;margin-bottom:6px}
.stat span{font-size:14px;color:var(--ink-3)}

/* ============ 理念三列 ============ */
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.why-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:38px 32px;transition:all .3s ease}
.why-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cdd5f6}
.why-icon{width:52px;height:52px;border-radius:12px;background:var(--brand-soft);display:grid;place-items:center;margin-bottom:22px;color:var(--brand)}
.why-card h3{font-size:20px;font-weight:700;margin-bottom:10px}
.why-card p{font-size:14.5px;color:var(--ink-3)}
.why-more{margin-top:40px}

/* ============ 能力矩阵 ============ */
.matrix{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.mx-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px 30px;transition:all .3s ease;position:relative}
.mx-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cdd5f6}
.mx-head{display:flex;align-items:center;gap:14px;margin-bottom:18px}
.mx-num{font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.05em}
.mx-card h3{font-size:18px;font-weight:700}
.mx-tags{display:flex;flex-wrap:wrap;gap:8px}
.mx-tags li{font-size:13.5px;color:var(--ink-2);background:var(--bg);border:1px solid var(--line);padding:5px 12px;border-radius:999px}

/* ============ 证书介绍 ============ */
.cert-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:72px;align-items:start}
.cert-left{position:sticky;top:110px}
.cert-left h2{font-size:clamp(30px,4vw,46px);font-weight:700;line-height:1.25;letter-spacing:-.01em;margin:20px 0 16px}
.cert-left p{font-size:16.5px;color:var(--ink-3);margin-bottom:30px}
.cert-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm)}
.cert-row{display:grid;grid-template-columns:170px 1fr;border-bottom:1px solid var(--line)}
.cert-row:last-child{border-bottom:none}
.cert-row dt{padding:18px 24px;font-size:14px;font-weight:600;color:var(--ink-2);background:var(--bg);border-right:1px solid var(--line)}
.cert-row dd{padding:18px 24px;font-size:14.5px;color:var(--ink)}
.cert-note{font-size:13px;color:var(--ink-3);margin-top:16px;line-height:1.7}

/* ============ 学习路径 ============ */
.path-wrap{overflow-x:auto;padding-bottom:8px;-webkit-overflow-scrolling:touch}
.path{display:flex;align-items:flex-start;min-width:900px;position:relative;padding-top:10px}
.path::before{content:"";position:absolute;top:44px;left:60px;right:60px;height:2px;background:linear-gradient(90deg,#dbe1fa,var(--accent),#dbe1fa)}
.path-step{flex:1;text-align:center;position:relative;padding:0 12px}
.path-dot{width:68px;height:68px;border-radius:50%;background:#fff;border:2px solid #dbe1fa;display:inline-grid;place-items:center;font-size:18px;font-weight:800;color:var(--brand);position:relative;z-index:1;margin-bottom:18px;transition:all .3s}
.path-step:hover .path-dot{border-color:var(--brand);box-shadow:0 0 0 8px rgba(91,110,240,.12);transform:scale(1.05)}
.path-step h3{font-size:16.5px;font-weight:700;margin-bottom:6px}
.path-step p{font-size:13px;color:var(--ink-3)}

/* ============ 适用场景 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
.scene-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;transition:all .3s ease;position:relative;overflow:hidden;min-height:150px}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cdd5f6}
.scene-icon{width:42px;height:42px;border-radius:10px;background:var(--brand-soft);display:grid;place-items:center;margin-bottom:16px;color:var(--brand);transition:transform .3s}
.scene-card:hover .scene-icon{transform:translateX(4px)}
.scene-card h3{font-size:16px;font-weight:700;margin-bottom:6px}
.scene-card p{font-size:13px;color:var(--ink-3);max-height:0;opacity:0;transition:all .35s ease}
.scene-card:hover p{max-height:80px;opacity:1}

/* ============ 职业发展 ============ */
.career-flow{display:flex;align-items:stretch;gap:0;flex-wrap:wrap}
.career-step{flex:1;min-width:150px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;position:relative;transition:all .3s}
.career-step:hover{border-color:#cdd5f6;box-shadow:var(--shadow-md);transform:translateY(-4px)}
.career-step:not(:last-child){margin-right:34px}
.career-step:not(:last-child)::after{content:"";position:absolute;right:-26px;top:50%;transform:translateY(-50%);width:18px;height:18px;border-top:2.5px solid var(--accent);border-right:2.5px solid var(--accent);rotate:45deg}
.career-lv{font-size:12px;font-weight:700;color:var(--accent);letter-spacing:.06em;margin-bottom:8px}
.career-step h3{font-size:17px;font-weight:700;margin-bottom:6px}
.career-step p{font-size:13px;color:var(--ink-3)}
.career-note{margin-top:32px;font-size:13.5px;color:var(--ink-3);background:var(--brand-soft);border:1px solid #dbe1fa;border-radius:10px;padding:14px 20px}

/* ============ 场景表格 ============ */
.case-table{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.case-row{display:grid;grid-template-columns:200px 1fr 1fr;border-bottom:1px solid var(--line)}
.case-row:last-child{border-bottom:none}
.case-row.head{background:var(--brand);color:#fff}
.case-row.head .case-cell{font-weight:600;font-size:14.5px;border:none;color:#fff}
.case-cell{padding:22px 28px;font-size:14.5px;color:var(--ink-2);border-right:1px solid var(--line)}
.case-cell:last-child{border-right:none}
.case-cell b{color:var(--ink);font-size:15.5px}
.case-tags{display:flex;flex-wrap:wrap;gap:8px}
.case-tags span{font-size:13px;background:var(--bg);border:1px solid var(--line);padding:3px 10px;border-radius:999px;color:var(--ink-2)}
.case-note{font-size:13px;color:var(--ink-3);margin-top:16px}

/* ============ 资讯 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 28px;display:flex;flex-direction:column;transition:all .3s ease}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cdd5f6}
.news-meta{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.news-cat{font-size:12.5px;font-weight:600;color:var(--brand);background:var(--brand-soft);padding:4px 10px;border-radius:6px}
.news-date{font-size:13px;color:var(--ink-3)}
.news-card h3{font-size:17.5px;font-weight:700;line-height:1.5;margin-bottom:10px}
.news-card p{font-size:14px;color:var(--ink-3);flex:1;margin-bottom:18px}
.news-link{font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px}
.news-link svg{transition:transform .25s}
.news-card:hover .news-link svg{transform:translateX(4px)}

/* ============ FAQ ============ */
.faq-list{max-width:840px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:14px;overflow:hidden;transition:border-color .3s}
.faq-item.active{border-color:#cdd5f6}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:22px 26px;background:none;border:none;font-family:inherit;font-size:16px;font-weight:600;color:var(--ink);text-align:left;cursor:pointer;min-height:44px}
.faq-q .faq-arrow{flex-shrink:0;width:24px;height:24px;display:grid;place-items:center;color:var(--brand);transition:transform .3s}
.faq-item.active .faq-arrow{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease}
.faq-a-inner{padding:0 26px 24px;font-size:14.5px;color:var(--ink-2);border-top:1px dashed var(--line);padding-top:18px;margin:0 26px 24px;padding-left:0;padding-right:0}

/* ============ CTA ============ */
.cta{background:linear-gradient(135deg,#1c2c73 0%,#2b3f9e 60%,#3d4fb8 100%);color:#fff;position:relative;overflow:hidden}
.cta::before{content:"";position:absolute;width:600px;height:600px;border-radius:50%;background:radial-gradient(circle,rgba(125,143,255,.18),transparent 65%);top:-260px;right:-140px}
.cta-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:64px;align-items:center;position:relative}
.cta h2{font-size:clamp(30px,4vw,44px);font-weight:800;line-height:1.3;letter-spacing:-.01em;margin-bottom:16px}
.cta p{color:rgba(255,255,255,.72);font-size:16px;margin-bottom:34px;max-width:480px}
.cta-btns{display:flex;gap:14px;flex-wrap:wrap}
.cta .btn-primary{background:#fff;color:var(--brand)}
.cta .btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(0,0,0,.22);background:#fff}
.cta .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.cta .btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.cta-qr{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:16px;padding:32px;text-align:center}
.qr-box{width:150px;margin:0 auto 16px;background:#fff;border-radius:12px;display:grid;place-items:center;color:var(--ink-3);font-size:13px;padding:10px}
.cta-qr p{font-size:13.5px;color:rgba(255,255,255,.7);margin:0}

/* ============ Footer ============ */
.footer{background:#0f1530;color:#a4abcb;padding:80px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr 1fr;gap:40px;padding-bottom:64px}
.footer-brand .logo{color:#fff;margin-bottom:18px}
.footer-brand p{font-size:13.5px;line-height:1.9;max-width:280px}
.footer h4{font-size:14.5px;font-weight:700;color:#fff;margin-bottom:20px}
.footer-col li{margin-bottom:12px}
.footer-col a{font-size:13.5px;color:#a4abcb;transition:color .2s}
.footer-col a:hover{color:#fff}
.footer-contact li{font-size:13.5px;margin-bottom:12px;line-height:1.7}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:26px 0;display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;font-size:12.5px;color:#6b7390}
.footer-bottom-links{display:flex;gap:24px}
.footer-bottom-links a:hover{color:#fff}

/* ============ 响应式 ============ */
@media (max-width:1080px){
  .nav-links{display:none}
  .nav-cta{display:none}
  .burger{display:flex}
  .hero-grid{grid-template-columns:1fr;gap:48px}
  .hero{padding:150px 0 90px}
  .hero-visual{max-width:560px;margin:0 auto;width:100%}
  .cert-grid{grid-template-columns:1fr;gap:44px}
  .cert-left{position:static}
  .scene-grid{grid-template-columns:repeat(3,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .footer-brand{grid-column:1/-1}
}
@media (max-width:860px){
  .why-grid,.matrix,.news-grid{grid-template-columns:1fr 1fr}
  .sec{padding:80px 0}
  .wrap{padding:0 24px}
  .case-row{grid-template-columns:1fr}
  .case-row.head{display:none}
  .case-cell{border-right:none;border-bottom:1px dashed var(--line);padding:16px 22px}
  .case-cell:last-child{border-bottom:none}
  .career-flow{flex-direction:column}
  .career-step:not(:last-child){margin-right:0;margin-bottom:34px}
  .career-step:not(:last-child)::after{right:auto;left:50%;top:auto;bottom:-26px;transform:translateX(-50%);rotate:135deg}
  .cta-grid{grid-template-columns:1fr;gap:44px}
}
.guide-grid{grid-template-columns:repeat(2,1fr)}
@media (max-width:600px){
  /* === 全局 === */
  body{font-size:15px}
  .wrap{padding:0 16px}
  .sec{padding:48px 0}
  .sec-alt{padding:48px 0}
  .sec-head{margin-bottom:28px;max-width:100%}
  .sec-head h2{font-size:22px;line-height:1.3;margin:14px 0 10px}
  .sec-head p{font-size:14px}
  .btn{min-height:42px;padding:0 18px;font-size:14px;border-radius:8px}
  .kicker{font-size:11px;padding:4px 10px}

  /* === 导航 === */
  .header{height:60px}
  .nav-inner{padding:0 16px;height:60px}
  .mobile-menu{top:60px}

  /* === Hero === */
  .hero{padding:100px 0 40px}
  .hero-grid{gap:24px}
  .hero h1{font-size:28px;line-height:1.2;margin:16px 0 6px}
  .hero-sub{font-size:17px;margin-bottom:14px}
  .hero-desc{font-size:14px;margin-bottom:20px}
  .hero-btns{flex-direction:column}
  .hero-btns .btn{width:100%}
  .hero-visual{max-width:100%}

  /* === 数据卡片 === */
  .stats{padding:0 0 40px}
  .stats-grid{grid-template-columns:1fr 1fr;gap:1px}
  .stat{padding:16px 14px}
  .stat b{font-size:22px}
  .stat span{font-size:12px}

  /* === 三列卡 === */
  .why-grid{grid-template-columns:1fr;gap:12px}
  .why-card{padding:20px 16px}
  .why-card h3{font-size:16px}
  .why-card p{font-size:13.5px}
  .why-icon{width:40px;height:40px;margin-bottom:14px}

  /* === 能力矩阵 === */
  .matrix{grid-template-columns:1fr;gap:12px}
  .mx-card{padding:18px 16px}
  .mx-card h3{font-size:15px}
  .mx-tags li{font-size:12px;padding:4px 8px}

  /* === 证书介绍 === */
  .cert-grid{gap:24px}
  .cert-left h2{font-size:22px}
  .cert-left p{font-size:14px;margin-bottom:16px}
  .cert-row{grid-template-columns:100px 1fr}
  .cert-row dt{padding:12px 14px;font-size:12px}
  .cert-row dd{padding:12px 14px;font-size:13px}
  .cert-note{font-size:12px}

  /* === 学习路径 === */
  .path{min-width:700px}
  .path-wrap{padding:0 0 8px;margin:0 -16px;padding-left:16px}

  /* === 场景 === */
  .scene-grid{grid-template-columns:1fr 1fr;gap:10px}
  .scene-card{padding:14px 12px;min-height:100px}
  .scene-card h3{font-size:13px}
  .scene-icon{width:32px;height:32px;margin-bottom:10px}

  /* === 职业发展 === */
  .career-flow{flex-direction:column;gap:12px}
  .career-step{padding:16px 14px}
  .career-step:not(:last-child){margin-right:0;margin-bottom:24px}
  .career-step:not(:last-child)::after{right:auto;left:50%;top:auto;bottom:-22px;transform:translateX(-50%) rotate(135deg)}
  .career-step h3{font-size:15px}
  .career-note{font-size:12px;padding:10px 14px}

  /* === 场景表格 === */
  .case-row{display:block;padding:0}
  .case-row.head{display:none}
  .case-cell{display:block;padding:10px 14px;border-right:none;border-bottom:1px dashed var(--line);font-size:13px}
  .case-cell:last-child{border-bottom:none}
  .case-cell b{font-size:14px}
  .case-tags span{font-size:11.5px;padding:2px 8px}

  /* === 资讯 === */
  .news-grid{grid-template-columns:1fr;gap:12px}
  .news-card{padding:18px 16px}
  .news-card h3{font-size:15px}
  .news-card p{font-size:13px}

  /* === FAQ === */
  .faq-list{max-width:100%}
  .faq-item{margin-bottom:10px;border-radius:10px}
  .faq-q{padding:14px 16px;font-size:14.5px;min-height:44px}
  .faq-a-inner{padding:12px 16px;font-size:13.5px;margin:0 16px 16px}

  /* === CTA === */
  .cta{padding:48px 0}
  .cta-grid{grid-template-columns:1fr;gap:28px}
  .cta h2{font-size:24px}
  .cta p{font-size:14px;margin-bottom:20px}
  .cta-btns{flex-direction:column}
  .cta-btns .btn{width:100%}

  /* === Footer === */
  .footer{padding:40px 0 0}
  .footer-grid{grid-template-columns:1fr;gap:24px;padding-bottom:32px}
  .footer h4{font-size:13.5px;margin-bottom:14px}
  .footer-col a,.footer-contact li{font-size:13px}
  .footer-bottom{padding:16px 0;flex-direction:column;text-align:center}

  /* === 博客同步 === */
  #blog-latest{margin-top:1.25rem}
  #blog-articles{gap:0.5rem}
  #blog-articles a{font-size:13px;padding:0.6rem 0.75rem}
}