:root{color-scheme:light;--seo-bg: #f4f8fb;--seo-ink: #17324d;--seo-soft: #5c748b;--seo-line: #d7e3ec;--seo-accent: #1d6fdc;--seo-panel: #ffffff}*{box-sizing:border-box}html,body{margin:0;padding:0;background:radial-gradient(900px 360px at 0% 0%,rgba(110,170,225,.14),transparent 52%),linear-gradient(180deg,#fbfdff 0%,var(--seo-bg) 48%,#edf4f8 100%);color:var(--seo-ink);font-family:PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;line-height:1.7}a{color:var(--seo-accent);text-decoration:none}a:hover{text-decoration:underline}.seo-shell{min-height:100vh}.seo-container{width:min(1100px,calc(100vw - 32px));margin:0 auto}.seo-header{padding:56px 0 28px}.seo-header h1,.seo-page-title{margin:0 0 14px;font-size:clamp(32px,4vw,50px);line-height:1.16}.seo-eyebrow{margin:0 0 10px;color:var(--seo-accent);font-size:14px;font-weight:700;letter-spacing:.08em}.seo-lead{max-width:760px;margin:0;color:var(--seo-soft);font-size:18px}.seo-main,.seo-page-main{padding-bottom:56px}.seo-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:18px}.seo-card,.seo-section{background:var(--seo-panel);border:1px solid var(--seo-line);border-radius:22px;box-shadow:0 12px 32px #1436520f}.seo-card{padding:24px}.seo-section{padding:28px;margin-bottom:18px}.seo-section h2{margin:0 0 12px;font-size:26px}.seo-section h3{margin:18px 0 8px;font-size:20px}.seo-links,.seo-breadcrumbs,.seo-inline-links{display:flex;flex-wrap:wrap;gap:10px 16px}.seo-links{margin-top:20px}.seo-list,.seo-qa-list{margin:0;padding-left:20px}.seo-contact-list,.seo-meta-list{list-style:none;padding:0;margin:0}.seo-contact-list li,.seo-meta-list li{margin-bottom:8px}.seo-hero-panel{grid-column:span 7}.seo-side-panel{grid-column:span 5}.seo-cta{display:inline-flex;margin-top:18px;padding:12px 18px;border-radius:999px;background:var(--seo-accent);color:#fff;font-weight:700}.seo-cta:hover{text-decoration:none;opacity:.92}.seo-footer{padding:22px 0 40px;color:var(--seo-soft);font-size:14px}.seo-home-shell{min-height:100vh;background:linear-gradient(135deg,#0d214ce0,#194aa8c7 52%,#2e6edeb3),radial-gradient(circle at 16% 20%,rgba(255,255,255,.18),transparent 28%),radial-gradient(circle at 82% 18%,rgba(255,255,255,.08),transparent 24%),linear-gradient(180deg,#10264d,#214f9d 48%,#eff4f8)}.seo-home-topbar{position:fixed;inset-inline:0;top:0;z-index:10;background:#0d193473;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid rgba(255,255,255,.1)}.seo-home-topbar-inner{height:76px;display:grid;grid-template-columns:auto 1fr auto;gap:24px;align-items:center}.seo-home-brand{display:flex;align-items:center;gap:12px}.seo-home-brand-mark{width:52px;height:52px;display:inline-flex;align-items:center;justify-content:center;border-radius:14px;background:#fffffff0;color:#17427a;font-weight:800;letter-spacing:.04em;box-shadow:0 4px 12px #0000001a}.seo-home-brand-name{font-size:18px;font-weight:700;color:#fff;letter-spacing:.5px}.seo-home-brand-desc{margin-top:2px;font-size:12px;color:#ffffffbf}.seo-home-nav{display:flex;justify-content:center;gap:20px;color:#ffffffd9;font-size:14px;font-weight:500}.seo-home-nav span{position:relative;padding:6px 0}.seo-home-top-actions,.seo-home-actions{display:flex;gap:14px;flex-wrap:wrap}.seo-home-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 28px;border-radius:999px;font-size:16px;font-weight:600;text-decoration:none;transition:transform .2s ease,box-shadow .2s ease,opacity .2s ease;box-shadow:0 8px 20px #0000001f}.seo-home-btn:hover{transform:translateY(-1px);text-decoration:none}.seo-home-btn-primary{background:linear-gradient(135deg,#3b82f6,#2563eb);color:#fff}.seo-home-btn-secondary{background:#ffffff24;color:#fff;border:1px solid rgba(255,255,255,.24);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}.seo-home-hero{position:relative;min-height:720px;padding:180px 0 120px;display:flex;align-items:center}.seo-home-hero:after{content:"";position:absolute;left:0;right:0;bottom:0;height:120px;background:linear-gradient(to top,#f0f4f8,transparent)}.seo-home-hero-mask{position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(circle at 20% 30%,rgba(255,255,255,.15),transparent 50%)}.seo-home-hero-content{position:relative;z-index:1;color:#fff}.seo-home-badge{display:inline-flex;align-items:center;padding:6px 16px;border-radius:999px;background:#ffffff26;border:1px solid rgba(255,255,255,.2);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);font-size:13px;font-weight:700;letter-spacing:.08em}.seo-home-title{margin:20px 0 0;font-size:clamp(40px,6vw,64px);line-height:1.15;font-weight:800;white-space:pre-line;color:#fff;text-shadow:0 8px 24px rgba(0,0,0,.15)}.seo-home-desc{max-width:820px;margin:24px 0 0;font-size:18px;line-height:1.8;color:#ffffffd9;text-shadow:0 2px 8px rgba(0,0,0,.1)}.seo-home-actions{margin-top:38px}.seo-home-link-group{margin-top:22px;display:flex;flex-wrap:wrap;gap:10px 18px}.seo-home-link-group a{color:#ffffffeb;border-bottom:1px solid rgba(255,255,255,.35);font-size:14px}.seo-home-link-group a:hover{color:#fff;border-bottom-color:#ffffffd9;text-decoration:none}.seo-home-stats{margin-top:34px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.seo-home-stat{padding:16px 18px;border-radius:22px;background:#ffffff1f;border:1px solid rgba(255,255,255,.14);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);box-shadow:0 12px 28px #00000014}.seo-home-stat strong,.seo-home-stat span{display:block}.seo-home-stat strong{font-size:22px;color:#fff}.seo-home-stat span{margin-top:4px;font-size:13px;color:#ffffffd1}@media (max-width: 900px){.seo-hero-panel,.seo-side-panel{grid-column:span 12}.seo-section,.seo-card{border-radius:18px;padding:22px}.seo-home-topbar-inner{height:auto;grid-template-columns:1fr;gap:10px;padding:14px 0}.seo-home-nav{justify-content:flex-start;overflow-x:auto;white-space:nowrap;padding-bottom:2px}.seo-home-top-actions{display:none}.seo-home-hero{min-height:auto;padding:190px 0 96px}.seo-home-title{font-size:clamp(34px,9vw,48px)}.seo-home-desc{font-size:16px}.seo-home-stats{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width: 560px){.seo-home-btn{width:100%;justify-content:center}.seo-home-stats{grid-template-columns:1fr}}