*{box-sizing:border-box}body{margin:0;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:#172033;background:#f6f8fb;line-height:1.72}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.site-header{background:linear-gradient(135deg,#132448,#1d4f7a);color:#fff}.topbar{display:flex;align-items:center;justify-content:space-between;gap:24px;max-width:1180px;margin:0 auto;padding:22px 20px}.logo,.footer-logo{display:flex;align-items:center;gap:12px;font-size:28px;font-weight:800}.logo img,.footer-logo img{width:46px;height:46px;border-radius:14px}.domain-note{margin:0;color:#dceafe}.main-nav{display:flex;flex-wrap:wrap;gap:10px;max-width:1180px;margin:0 auto;padding:0 20px 18px}.main-nav a{padding:8px 14px;border:1px solid rgba(255,255,255,.26);border-radius:999px;background:rgba(255,255,255,.08)}.main-nav a:hover{background:#fff;color:#17376c}.search-wrap{max-width:1180px;margin:0 auto;padding:0 20px 26px}.search-wrap label{display:block;margin-bottom:8px;font-weight:700}.search-row{display:flex;gap:10px}.search-row input{flex:1;border:0;border-radius:14px;padding:14px 16px;font-size:16px}.search-row button,.primary-btn{border:0;border-radius:14px;padding:12px 20px;background:#ffb23e;color:#1a2031;font-weight:800;cursor:pointer}.search-hint{min-height:24px;margin:8px 0 0;color:#dceafe}.container{max-width:1180px;margin:0 auto;padding:28px 20px}.hero{display:grid;grid-template-columns:1.3fr .7fr;gap:22px;align-items:stretch}.card,.section-card,.article-card,.author-card,.faq-item,.comment-card{background:#fff;border-radius:22px;box-shadow:0 12px 36px rgba(31,57,93,.08);padding:22px}.hero .card{padding:28px}.eyebrow{font-weight:800;color:#2563a5;letter-spacing:.04em}.hero h1,.page-title{font-size:clamp(30px,4vw,54px);line-height:1.12;margin:10px 0}.meta{display:flex;flex-wrap:wrap;gap:10px;margin:14px 0;color:#556070;font-size:14px}.tag-list{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0}.tag-list span,.tag-list a{background:#eef5ff;color:#1f5d99;border-radius:999px;padding:5px 10px;font-size:13px}.grid{display:grid;gap:18px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.section-title{display:flex;align-items:end;justify-content:space-between;margin:34px 0 14px}.section-title h2{margin:0;font-size:28px}.section-title p{margin:0;color:#667085}.video-card{position:relative;overflow:hidden;border-radius:22px;background:#fff;box-shadow:0 12px 36px rgba(31,57,93,.08)}.video-thumb{position:relative;aspect-ratio:16/10;overflow:hidden}.video-thumb img{width:100%;height:100%;object-fit:cover}.play-badge{position:absolute;inset:auto auto 16px 16px;width:54px;height:54px;border-radius:50%;display:grid;place-items:center;background:rgba(20,36,69,.82);color:#fff;font-size:22px;transform:scale(.86);opacity:.88;transition:.2s}.video-card:hover .play-badge{transform:scale(1.08);opacity:1;background:#ffb23e;color:#132448}.video-body{padding:18px}.stats{display:flex;flex-wrap:wrap;gap:10px;color:#667085;font-size:14px}.content-list{list-style:none;margin:0;padding:0}.content-list li{padding:13px 0;border-bottom:1px solid #edf1f7}.content-list li:last-child{border-bottom:0}.article-card h3,.video-body h3{margin:0 0 8px}.article-main{background:#fff;border-radius:24px;padding:28px;box-shadow:0 12px 36px rgba(31,57,93,.08)}.article-main p{font-size:17px}.breadcrumb{font-size:14px;color:#667085;margin-bottom:16px}.info-box{background:#eef5ff;border-left:5px solid #2f7fc1;border-radius:16px;padding:16px;margin:18px 0}.quote{border-left:4px solid #ffb23e;padding-left:16px;color:#475467}.json-block{white-space:pre-wrap;overflow:auto;background:#101828;color:#eef5ff;border-radius:18px;padding:18px;font-size:13px}.faq-item h3{margin-top:0}.comment-card strong{display:block;color:#1d4f7a}.contact-panel{background:#fff;border-radius:24px;padding:26px;box-shadow:0 12px 36px rgba(31,57,93,.08)}.site-footer{margin-top:34px;background:#101828;color:#e4e7ec;padding:34px 20px}.footer-grid{max-width:1180px;margin:0 auto;display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:26px}.footer-logo{font-size:24px}.footer-logo img{width:40px;height:40px}.copyright{max-width:1180px;margin:26px auto 0;color:#b7c0d1}.site-footer a{color:#fff;text-decoration:underline}.visually-hidden{position:absolute;left:-9999px}@media(max-width:860px){.hero,.grid-2,.grid-3,.grid-4,.footer-grid{grid-template-columns:1fr}.topbar{align-items:flex-start;flex-direction:column}.search-row{flex-direction:column}.main-nav a{flex:1 1 auto;text-align:center}.card,.section-card,.article-card,.author-card,.faq-item,.comment-card,.article-main{padding:18px}}