:root{--bg:#f7f7f3;--paper:#ffffff;--ink:#1f2933;--muted:#64748b;--line:#e5e7eb;--accent:#111827;--soft:#eef2f7;--radius:24px;--shadow:0 18px 60px rgba(15,23,42,.08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.7}a{color:inherit;text-decoration:none}img,video{max-width:100%;display:block;border-radius:var(--radius)}.container{width:min(1180px,92vw);margin-inline:auto}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;clip:rect(0,0,0,0);white-space:nowrap;border:0;overflow:hidden}.site-header{position:sticky;top:0;z-index:10;background:rgba(247,247,243,.92);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:16px 0}.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:22px}.logo img{border-radius:14px}.main-nav{display:flex;gap:6px;align-items:center;flex-wrap:wrap}.main-nav a{padding:10px 12px;border-radius:999px;color:#334155;font-size:14px}.main-nav a.active,.main-nav a:hover{background:#111827;color:#fff}.nav-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:999px;padding:9px 14px}.search-wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 0 16px}.fake-search{display:flex;min-width:min(650px,100%);background:#fff;border:1px solid var(--line);border-radius:999px;overflow:hidden;box-shadow:0 10px 30px rgba(15,23,42,.05)}.fake-search input{flex:1;border:0;padding:13px 18px;font-size:15px;outline:none}.fake-search button{border:0;background:#111827;color:#fff;padding:0 22px;font-weight:700}.domain-note{font-size:14px;color:var(--muted);margin:0}.breadcrumb{font-size:14px;color:var(--muted);padding:18px 0;display:flex;gap:8px;align-items:center;flex-wrap:wrap}.breadcrumb a:hover{color:#111827}.hero{padding:38px 0 70px}.hero-grid,.split{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}.eyebrow{margin:0 0 10px;color:#475569;font-weight:800;letter-spacing:.04em}.hero h1,.page-hero h1{font-size:clamp(36px,6vw,68px);line-height:1.08;margin:0 0 20px;letter-spacing:-.04em}.hero p,.page-hero p{font-size:18px;color:#475569}.hero-actions{display:flex;gap:14px;margin:28px 0;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:13px 20px;font-weight:800}.btn.primary{background:#111827;color:#fff}.btn.secondary{background:#fff;border:1px solid var(--line)}.hero-stats{display:flex;gap:14px;list-style:none;margin:0;padding:0;flex-wrap:wrap}.hero-stats li{background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px 18px;min-width:130px}.hero-stats strong{display:block;font-size:24px}.hero-stats span{color:var(--muted);font-size:13px}.hero-media{position:relative;margin:0;background:#fff;padding:14px;border-radius:32px;box-shadow:var(--shadow)}figcaption{font-size:13px;color:var(--muted);margin-top:10px}.section{padding:72px 0}.soft{background:var(--soft)}.section-head{max-width:760px;margin-bottom:28px}.section-head h2,.split h2,.cta h2{font-size:clamp(28px,4vw,44px);line-height:1.18;margin:0 0 12px;letter-spacing:-.03em}.section-head p{color:var(--muted);margin:0}.card-grid{display:grid;gap:18px}.card-grid.four{grid-template-columns:repeat(4,1fr)}.card-grid.three{grid-template-columns:repeat(3,1fr)}.info-card,.review-card,.log-list article,.timeline article,.faq-list details{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:0 10px 30px rgba(15,23,42,.04)}.info-card h3,.info-card h2,.timeline h3,.log-list h3,.review-card h3{margin:10px 0;font-size:21px;line-height:1.3}.info-card p,.review-card p,.timeline p,.log-list p{color:#526173;margin:0}.pill{display:inline-flex;padding:5px 10px;border-radius:999px;background:#f1f5f9;color:#334155;font-size:12px;font-weight:800}.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.video-card{background:#fff;border:1px solid var(--line);border-radius:28px;overflow:hidden;box-shadow:var(--shadow)}.video-frame{position:relative;aspect-ratio:16/10;background:#dbe4ed;overflow:hidden}.video-frame video{width:100%;height:100%;object-fit:cover;border-radius:0}.play-button{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%) scale(.88);width:64px;height:64px;border-radius:50%;border:0;background:rgba(17,24,39,.88);color:#fff;font-size:24px;opacity:0;transition:.2s ease;cursor:pointer}.video-card:hover .play-button,.video-card.is-active .play-button{opacity:1;transform:translate(-50%,-50%) scale(1)}.video-body{padding:22px}.video-body h3{margin:10px 0 8px}.video-body p{margin:0 0 10px;color:#526173}.video-meta{font-weight:700;color:#334155!important}.timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.steps{counter-reset:step;list-style:none;margin:0;padding:0;display:grid;gap:14px}.steps li{display:grid;grid-template-columns:46px 1fr;gap:14px;align-items:start;background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px}.steps li:before{counter-increment:step;content:counter(step);width:40px;height:40px;border-radius:50%;background:#111827;color:#fff;display:grid;place-items:center;font-weight:800}.steps strong,.steps span{display:block}.steps span{color:var(--muted)}.log-list{display:grid;gap:14px}.log-list time{font-weight:800;color:#475569}.faq-list{display:grid;gap:12px}.faq-list summary{font-weight:800;cursor:pointer}.faq-list p{color:var(--muted);margin:12px 0 0}.review-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}.review-card span{display:block;margin-top:14px;color:#475569;font-size:13px;font-weight:800}.cta{display:flex;align-items:center;justify-content:space-between;gap:18px;background:#111827;color:#fff;border-radius:32px;padding:36px;margin-top:40px;margin-bottom:40px}.cta p{color:#d1d5db;margin:0}.cta .btn.primary{background:#fff;color:#111827}.page-hero{padding:48px 0 26px}.site-footer{background:#0b1120;color:#e5e7eb;margin-top:40px;padding:54px 0 24px}.footer-grid{display:grid;grid-template-columns:1.2fr .8fr 1fr;gap:32px}.footer-grid h2{font-size:18px;margin:0 0 12px}.footer-grid a:not(.logo){display:block;color:#cbd5e1;margin:7px 0}.footer-grid p{color:#cbd5e1}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:26px;padding-top:20px;color:#94a3b8}.footer-logo{color:#fff}@media (max-width:980px){.hero-grid,.split,.footer-grid{grid-template-columns:1fr}.card-grid.four,.card-grid.three,.video-grid,.timeline,.review-grid{grid-template-columns:1fr 1fr}.search-wrap{display:block}.domain-note{margin-top:10px}.main-nav{display:none;position:absolute;left:4vw;right:4vw;top:78px;background:#fff;border:1px solid var(--line);border-radius:24px;padding:12px;box-shadow:var(--shadow)}.main-nav.open{display:grid}.main-nav a{border-radius:14px}.nav-toggle{display:inline-flex}}@media (max-width:640px){.hero{padding-top:20px}.hero-actions,.hero-stats,.cta{display:grid}.card-grid.four,.card-grid.three,.video-grid,.timeline,.review-grid{grid-template-columns:1fr}.section{padding:48px 0}.fake-search{border-radius:20px}.fake-search button{padding:0 16px}.hero h1,.page-hero h1{font-size:34px}.cta{border-radius:24px;margin-inline:4vw}}
