:root{--zt-blue:#1677ff;--zt-deep:#071a3a;--zt-text:#1f2937;--zt-muted:#667085;--zt-line:#e6edf7;--zt-bg:#f5f8fd}.yd2026{font-family:"Microsoft YaHei",Arial,sans-serif;color:var(--zt-text);background:#fff}.yd2026 *{box-sizing:border-box}.yd-container{width:1200px;margin:0 auto}.yd-hero{padding:150px 0 82px;background:radial-gradient(circle at 76% 40%,rgba(36,157,255,.28),transparent 30%),linear-gradient(135deg,#071a3a,#0d3c7d 60%,#1890ff);color:#fff;position:relative;overflow:hidden}.yd-hero:before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(115deg,rgba(255,255,255,.045) 0 1px,transparent 1px 90px)}.yd-hero-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:48px}.yd-eyebrow{display:inline-block;border:1px solid rgba(255,255,255,.26);border-radius:999px;padding:8px 16px;color:#c8e6ff;background:rgba(255,255,255,.08);margin-bottom:20px}.yd-hero h1{font-size:48px;font-weight:800;margin:0 0 18px}.yd-hero p{font-size:18px;line-height:1.85;color:rgba(255,255,255,.86);max-width:700px;margin:0}.yd-tags{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}.yd-tags span{padding:8px 14px;border-radius:999px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18)}.yd-btns{display:flex;gap:14px;margin-top:32px}.yd-btn{display:inline-flex;align-items:center;justify-content:center;height:46px;padding:0 26px;border-radius:12px;text-decoration:none!important;font-weight:800}.yd-btn.primary{background:#1677ff;color:#fff!important;box-shadow:0 12px 25px rgba(22,119,255,.3)}.yd-btn.ghost{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.25);color:#fff!important}.yd-hero-card{width:340px;background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.22);border-radius:22px;padding:30px;backdrop-filter:blur(8px)}.yd-hero-card b{font-size:24px}.yd-hero-card p{font-size:16px;margin-top:12px}.yd-section{padding:72px 0}.yd-section.gray{background:var(--zt-bg)}.yd-title{text-align:center;margin-bottom:36px}.yd-title h2{font-size:32px;font-weight:800;margin:0 0 10px}.yd-title p{font-size:16px;color:#667085;margin:0}.yd-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.yd-plan{background:#fff;border:1px solid var(--zt-line);border-radius:20px;padding:26px;box-shadow:0 10px 28px rgba(16,45,90,.05);transition:.22s}.yd-plan:hover{transform:translateY(-5px);border-color:#9ec5ff;box-shadow:0 18px 38px rgba(22,119,255,.13)}.yd-plan-top h3{font-size:22px;margin:0 0 8px;font-weight:800}.yd-plan-top span{color:#667085}.yd-price{margin:18px 0}.yd-price em{font-style:normal;font-size:32px;font-weight:800;color:#ff5a1f}.yd-price span{color:#667085;margin-left:4px}.yd-plan ul{list-style:none;margin:0 0 22px;padding:0}.yd-plan li{padding:7px 0;line-height:1.55;color:#344054}.yd-plan li b{color:#111827}.yd-actions{display:flex;gap:10px}.yd-actions a{flex:1;height:42px;border-radius:10px;display:flex;align-items:center;justify-content:center;text-decoration:none!important;font-weight:800}.yd-actions .primary{background:#1677ff;color:#fff!important}.yd-actions .ghost{border:1px solid #d9e3f2;color:#1677ff!important}.yd-scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.yd-scene-grid div{background:#fff;border:1px solid var(--zt-line);border-radius:18px;padding:26px;box-shadow:0 10px 26px rgba(16,45,90,.05)}.yd-scene-grid b{font-size:20px}.yd-scene-grid p{color:#667085;line-height:1.7;margin:12px 0 0}.yd-cta{margin:72px auto;background:linear-gradient(135deg,#0b2b5b,#1677ff);border-radius:22px;padding:38px;color:#fff;display:flex;align-items:center;justify-content:space-between}.yd-cta h2{margin:0 0 8px}.yd-cta p{margin:0;color:rgba(255,255,255,.84)}@media(max-width:1200px){.yd-container{width:94%}.yd-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:768px){.yd-hero{padding-top:118px}.yd-hero-inner{display:block}.yd-hero h1{font-size:34px}.yd-hero-card{width:100%;margin-top:30px}.yd-grid,.yd-scene-grid{grid-template-columns:1fr}.yd-cta{display:block;text-align:center}.yd-btns{display:block}.yd-btn{width:100%;margin-top:14px}.yd-actions{display:block}.yd-actions a{margin-top:10px}}

/* V1.1 头部兼容修复：避免本页面样式影响公共导航 */
.nav, .nav *{box-sizing:content-box;}
.nav .header-wrapper, .nav .header-nav, .nav .head_main{box-sizing:content-box;}
body.header-fixed .nav{z-index:1000;}