.yongtan-product-content{--yt-navy:#041b32;--yt-blue:#006bb8;--yt-light:#f1f6fa;--yt-line:#d4e2ed;--yt-orange:#f47b20;color:#263d55;font-size:16px;line-height:1.84;overflow-wrap:anywhere}
.yongtan-product-content>*{box-sizing:border-box}
.yongtan-product-content h2{margin:42px 0 16px;color:var(--yt-navy);font-size:clamp(24px,2.6vw,32px);line-height:1.35}
.yongtan-product-content a{color:var(--yt-blue);text-underline-offset:3px}
.yongtan-product-answer{padding:22px 26px;border:1px solid var(--yt-line);border-left:5px solid var(--yt-blue);border-radius:0 10px 10px 0;background:var(--yt-light);box-shadow:0 10px 32px rgba(4,27,50,.06);color:var(--yt-navy);font-size:17px}
.yongtan-table-wrap{max-width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch}
.yongtan-spec-table{width:100%;min-width:720px;border-collapse:collapse;background:#fff}
.yongtan-spec-table th,.yongtan-spec-table td{padding:14px 16px;border:1px solid var(--yt-line);text-align:left;vertical-align:top}
.yongtan-spec-table th{background:var(--yt-navy);color:#fff;font-weight:700}
.yongtan-check-list,.yongtan-process-list{padding-left:1.4em}
.yongtan-check-list li,.yongtan-process-list li{margin:8px 0}
.yongtan-product-content details{margin:12px 0;border:1px solid var(--yt-line);border-radius:10px;background:#fff;box-shadow:0 6px 20px rgba(4,27,50,.04)}
.yongtan-product-content summary{padding:15px 18px;cursor:pointer;color:var(--yt-navy);font-weight:700}
.yongtan-product-content details div{padding:0 18px 16px}
.yongtan-related-link{margin:26px 0;font-weight:700}
.yongtan-contact-card{position:relative;display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:34px;align-items:center;margin:54px 0 16px;padding:38px;border-radius:14px;background:var(--yt-navy);box-shadow:0 24px 64px rgba(4,27,50,.18);color:#e8f1fa;overflow:hidden}
.yongtan-contact-card:before{content:"";position:absolute;top:0;left:38px;width:90px;height:4px;background:var(--yt-orange)}
.yongtan-contact-card h2{margin:5px 0 12px;color:#fff}
.yongtan-contact-card a{color:#fff}
.yongtan-eyebrow{margin:0;color:#8fc9f4;font-weight:700}
.yongtan-contact-card ul{padding-left:1.2em}
.yongtan-contact-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
.yongtan-button{display:inline-flex;min-height:46px;align-items:center;justify-content:center;padding:10px 19px;border-radius:7px;text-decoration:none;font-weight:800;transition:transform .2s ease,box-shadow .2s ease}
.yongtan-button:hover{box-shadow:0 10px 24px rgba(0,0,0,.16);transform:translateY(-2px)}
.yongtan-button-primary{background:var(--yt-orange)}
.yongtan-button-secondary{border:1px solid #8fc9f4;background:transparent}
.yongtan-contact-qr{margin:0;text-align:center}
.yongtan-contact-qr img{display:block;width:100%;height:auto;max-width:220px;margin:auto;border:10px solid #fff;background:#fff}
.yongtan-contact-qr figcaption{margin-top:9px;font-size:13px;line-height:1.5;color:#c7d8e8}
@media (max-width:767px){.yongtan-product-content{font-size:15px}.yongtan-product-content h2{margin-top:34px}.yongtan-product-answer{padding:16px 18px}.yongtan-contact-card{grid-template-columns:1fr;padding:24px 18px}.yongtan-contact-actions{display:grid}.yongtan-button{width:100%}.yongtan-contact-qr img{max-width:240px}}