:root{--bg:#f8fbff;--text:#0f172a;--muted:#475569;--line:#e2e8f0;--shadow:0 16px 48px rgba(15,23,42,.06);--radius:24px;--container:1200px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--text);background:linear-gradient(180deg,#fff 0%,#f9fbff 42%,#f7fbff 100%)}a{text-decoration:none;color:inherit}img{max-width:100%;display:block}.container{max-width:var(--container);margin:0 auto;padding:0 24px}.topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(14px);border-bottom:1px solid rgba(226,232,240,.95)}.topbar .inner{display:flex;align-items:center;justify-content:space-between;height:80px}.logo{display:flex;gap:14px;align-items:center}.logo img{height:46px}.logo .brand{display:flex;flex-direction:column}.logo .title{font-size:20px;font-weight:700}.logo .sub{font-size:12px;color:#64748b;margin-top:3px}.nav{display:flex;gap:28px;color:#475569;font-size:15px}.nav a:hover{color:#0f172a}.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 20px;border-radius:999px;font-size:14px;font-weight:600;transition:.2s ease;cursor:pointer;border:none}.btn-primary{background:#0f172a;color:#fff}.btn-secondary{border:1px solid var(--line);background:#fff;color:#0f172a}.hero{position:relative;overflow:hidden;padding:34px 0 50px}.hero-grid{display:grid;grid-template-columns:.94fr 1.06fr;gap:52px;align-items:center}.badge{display:inline-block;padding:8px 14px;border-radius:999px;background:#effaff;border:1px solid #bae6fd;color:#0369a1;font-size:14px}.hero h1{font-size:76px;line-height:1.02;letter-spacing:-.05em;margin:18px 0 0}.hero .subtitle{font-size:26px;line-height:1.6;color:#334155;margin-top:18px}.hero p{font-size:18px;line-height:1.9;color:#475569;max-width:760px}.actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:34px}.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.stat{padding:22px}.stat strong{font-size:34px;display:block}.stat span{display:block;color:#64748b;font-size:14px;margin-top:8px}.section{padding:88px 0}.kicker{font-size:12px;letter-spacing:.28em;text-transform:uppercase;color:#0891b2}.section h2{font-size:50px;line-height:1.1;letter-spacing:-.03em;margin:14px 0 0}.lead{font-size:17px;line-height:1.95;color:#475569}.three{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.two{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}.feature,.case,.news-card{padding:28px}.feature h3,.case h3,.news-card h3{margin:0;font-size:25px;line-height:1.2}.feature p,.case p,.news-card p{color:#475569;line-height:1.9;font-size:15px}.soft-section{background:#fbfdff}.light-blue{background:linear-gradient(180deg,#fafdff 0%,#f5f9ff 100%)}.city-boxes{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.city-boxes div{padding:14px 12px;text-align:center;border:1px solid var(--line);background:#fff;border-radius:18px;color:#334155}.case-tag{display:inline-block;padding:7px 11px;border-radius:999px;background:#eaf5ff;color:#0f4c81;font-size:12px;font-weight:700;border:1px solid #bfdbfe}.contact-wrap{background:linear-gradient(135deg,#f8fbff,#eef6ff);color:#0f172a;padding:34px;border-radius:34px;box-shadow:0 16px 48px rgba(15,23,42,.05); border:1px solid #dbeafe}.contact-card{background:#fff;border:1px solid #dbeafe;border-radius:26px;padding:24px}.contact-item{margin-bottom:18px}.contact-item small{color:#64748b;display:block;margin-bottom:6px}.footer{padding:24px 0 40px}.page-hero{padding:62px 0 28px;background:radial-gradient(circle at left top, rgba(14,165,233,.10), transparent 24%), linear-gradient(180deg,#fff 0%,#f8fbff 100%);border-bottom:1px solid var(--line)}.page-hero h1{font-size:56px;line-height:1.08;letter-spacing:-.04em;margin:10px 0 0}.split{display:grid;grid-template-columns:.92fr 1.08fr;gap:28px}.hero-image,.thumb,.case-thumb{border-radius:28px;overflow:hidden;border:1px solid #dbeafe;box-shadow:var(--shadow);background:#fff}.thumb{border-radius:20px;width:38%;min-width:180px;max-width:240px;flex-shrink:0}.thumb img,.case-thumb img{width:100%;height:100%;display:block;object-fit:cover;aspect-ratio:5/3}.hero-image img{width:100%;height:auto;display:block}.solution-row{display:flex;gap:24px;align-items:center}.solution-copy h3{font-size:32px;margin:0 0 12px}.solution-copy p{font-size:17px;line-height:1.9;color:#475569;margin:0}.news-list{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.more-link{font-size:14px;font-weight:600;color:#0f172a}.modal-mask{position:fixed;inset:0;background:rgba(15,23,42,.35);display:none;align-items:center;justify-content:center;padding:24px;z-index:100}.modal-mask.show{display:flex}.modal{width:min(460px,100%);background:#fff;border-radius:26px;padding:28px;border:1px solid var(--line);box-shadow:0 30px 100px rgba(15,23,42,.12)}.modal h3{margin:0 0 8px;font-size:28px}.modal p{margin:0;color:#475569;line-height:1.8}.modal-actions{display:flex;gap:12px;margin-top:22px;flex-wrap:wrap}.copy-tip{font-size:13px;color:#0891b2;margin-top:10px;display:none}.copy-tip.show{display:block}.news-card .meta{font-size:12px;color:#64748b;margin-bottom:10px}.news-card .desc{display:-webkit-box;-webkit-line-clamp:6;-webkit-box-orient:vertical;overflow:hidden}@media (max-width:980px){.nav{display:none}.hero-grid,.split,.three,.two,.news-list{grid-template-columns:1fr}.stats,.city-boxes{grid-template-columns:1fr 1fr}.solution-row{flex-direction:column;align-items:flex-start}.thumb{width:100%;max-width:none}.hero h1{font-size:48px}.section h2,.page-hero h1{font-size:36px}}@media (max-width:640px){.container{padding:0 18px}.stats,.city-boxes{grid-template-columns:1fr}.hero{padding-top:24px}.hero h1{font-size:40px}.hero .subtitle{font-size:20px}}
.btn-platform{background:linear-gradient(135deg,#0ea5e9,#2563eb);color:#fff}.btn-platform:hover{opacity:.92}
.case-card{padding:0;overflow:hidden}.case-card .case-content{padding:24px 28px 28px}