:root{--bg: #f6f8fb;--surface: #ffffff;--text: #171b22;--muted: #5b6472;--line: #e5e9f0;--brand: #2563eb;--brand-dark: #1d4ed8;--brand-soft: #eaf1ff;--placeholder-bg: #fff6d8;--placeholder-border: #e3c46a;--placeholder-text: #7a5200;--radius: 18px;--shadow: 0 18px 45px rgba(15, 23, 42, .08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;color:var(--text);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased}img{display:block;max-width:100%}a{color:inherit;text-decoration:none}h1,h2,h3,p,ul,ol,dl,dd{margin:0}ul,ol{padding:0;list-style:none}.container{width:min(1080px,calc(100% - 40px));margin:0 auto}.section{padding:72px 0}.section-head{max-width:720px;margin:0 auto 40px;text-align:center}.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:5px 12px;border-radius:999px;background:var(--brand-soft);color:var(--brand-dark);font-size:13px;font-weight:700;letter-spacing:.02em}h1,h2,h3{letter-spacing:-.02em;line-height:1.25}h1{font-size:clamp(34px,8vw,58px);font-weight:800;margin:18px 0}h2{font-size:clamp(26px,5vw,38px);font-weight:800;margin-top:14px}h3{font-size:20px;font-weight:800}.section-head p{color:var(--muted);margin-top:12px}.site-header{position:sticky;top:0;z-index:20;background:#ffffffdb;backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.nav{display:flex;align-items:center;justify-content:space-between;height:64px}.brand{font-size:18px;font-weight:800}.brand span{color:var(--brand)}.nav-links{display:none;align-items:center;gap:26px;font-size:15px;font-weight:600;color:var(--muted)}.nav-links a:hover{color:var(--text)}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border-radius:999px;font-weight:700;font-size:15px;white-space:nowrap;transition:transform .15s ease,background .15s ease,box-shadow .15s ease}.btn-small{min-height:40px;padding:0 18px;font-size:14px}.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px #2563eb38}.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px)}.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--line)}.btn-ghost:hover{border-color:#c9d1df}.hero{background:linear-gradient(180deg,#eaf1ff 0%,var(--bg) 100%);border-bottom:1px solid var(--line)}.hero-inner{padding:76px 0 60px;text-align:center}.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 13px;border-radius:999px;background:#fffc;border:1px solid var(--line);color:var(--brand-dark);font-size:13px;font-weight:700}.hero-sub{max-width:640px;margin:0 auto 28px;color:var(--muted);font-size:18px}.hero-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:12px}.hero-points{display:flex;flex-wrap:wrap;justify-content:center;gap:10px 22px;margin-top:30px;color:var(--muted);font-size:14px;font-weight:600}.hero-points li{display:flex;align-items:center;gap:8px}.hero-points li:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--brand)}.cards,.case-grid,.steps{display:grid;gap:16px}.card,.case-card,.step{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 1px 2px #0f172a0a}.card{padding:28px}.card-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}.card-num{font-size:13px;font-weight:800;color:var(--brand);background:var(--brand-soft);padding:4px 10px;border-radius:999px}.card h3{margin-bottom:14px}.card-meta{margin-top:16px;padding-top:16px;border-top:1px solid var(--line)}.card-meta p{color:var(--muted);font-size:15px}.card-meta .label{display:block;font-size:13px;font-weight:700;color:var(--text);margin-bottom:4px}.price{margin-top:16px;color:var(--brand-dark);font-size:18px;font-weight:800}.case-card{overflow:hidden}.case-image{display:grid;place-items:center;min-height:210px;padding:24px;text-align:center;background:#e8ecf3;border-bottom:1px solid var(--line);color:#7b8494;font-weight:800;font-size:15px}.case-body{padding:20px}.case-title{margin-bottom:8px}.case-desc{color:var(--muted);font-size:15px;margin-bottom:16px}.tags{display:flex;flex-wrap:wrap;gap:8px}.tag{padding:3px 10px;border-radius:999px;background:#f1f4f9;color:#4b5563;font-size:12px;font-weight:600}.step{padding:24px}.step-num{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;background:var(--brand-soft);color:var(--brand-dark);font-weight:800;margin-bottom:18px}.step h3{font-size:18px;margin-bottom:10px}.step p{color:var(--muted);font-size:15px}.about-card{display:grid;gap:28px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow)}.about-title p{color:var(--muted);margin-top:12px}.about-list{display:grid;gap:14px}.about-list li{display:grid;grid-template-columns:24px 1fr;gap:12px;align-items:start}.about-list li:before{content:"✓";display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:50%;background:var(--brand-soft);color:var(--brand-dark);font-weight:800;font-size:13px}.about-list strong{display:block;font-size:17px}.about-list span{display:block;color:var(--muted);font-size:15px;margin-top:3px}.contact-section{background:#0f172a;color:#fff}.contact-section .eyebrow{background:#ffffff1f;color:#fff}.contact-section h2{margin-bottom:14px}.contact-grid{display:grid;gap:30px;align-items:center;margin-top:28px}.contact-intro{color:#cbd5e1;max-width:520px}.contact-list{display:grid;gap:12px;margin:26px 0}.contact-list>div{display:grid;grid-template-columns:64px 1fr;gap:12px;align-items:baseline}.contact-list dt{color:#94a3b8;font-size:14px}.contact-list dd{font-size:17px;font-weight:700}.btn-light{background:#fff;color:#0f172a;box-shadow:0 12px 30px #0000002e}.btn-light:hover{transform:translateY(-1px)}.qr-box{justify-self:center;text-align:center}.qr-placeholder{display:grid;place-items:center;width:190px;height:190px;padding:18px;border-radius:18px;background:#fff;color:#6b7280;font-weight:800;text-align:center;border:1px dashed #c3c8d1}.qr-box p{margin-top:12px;color:#cbd5e1;font-size:14px}.contact-cta{display:grid;justify-items:center;gap:18px;margin-top:52px;padding-top:40px;border-top:1px solid rgba(255,255,255,.16);text-align:center}.contact-cta h3{font-size:clamp(22px,4vw,30px)}.placeholder{display:inline-block;padding:2px 9px;border:1px dashed var(--placeholder-border);border-radius:8px;background:var(--placeholder-bg);color:var(--placeholder-text);font-weight:800}.site-footer{border-top:1px solid var(--line);padding:26px 0;color:var(--muted);font-size:14px}.footer-inner{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px}@media(min-width:768px){.nav-links{display:flex}.cards-3{grid-template-columns:repeat(3,1fr)}.case-grid{grid-template-columns:repeat(2,1fr)}.steps{grid-template-columns:repeat(4,1fr)}.about-card{grid-template-columns:1fr 1.3fr;align-items:start}.contact-grid{grid-template-columns:1.2fr .8fr}.section{padding:92px 0}}