:root{--navy:#0d2340;--ink:#152338;--blue:#1b6bd6;--cyan:#25c7c7;--orange:#ff7a29;--paper:#f5f7fa;--white:#fff;--line:#d9e1ea;--muted:#64748b;--danger:#b8382e;--shadow:0 18px 50px rgba(13,35,64,.12)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;line-height:1.75}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.site-header{position:sticky;top:0;z-index:50;background:rgba(13,35,64,.97);color:#fff;border-bottom:3px solid var(--orange)}.header-inner{max-width:1240px;margin:auto;min-height:72px;padding:0 22px;display:flex;align-items:center;gap:24px}.brand{display:flex;align-items:center;gap:10px;min-width:240px}.brand-icon{width:42px;height:42px;border:2px solid var(--cyan);display:grid;place-items:center;font-size:25px;font-weight:900;color:var(--orange);transform:rotate(-2deg)}.brand strong{display:block;font-size:19px}.brand 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var(--blue);box-shadow:var(--shadow);padding:24px;position:relative}.desk-card:nth-child(2n){border-top-color:var(--cyan)}.desk-card:nth-child(3n){border-top-color:var(--orange)}.desk-card .num{position:absolute;right:18px;top:15px;color:#b8c5d4;font-weight:900;font-size:30px}.desk-card h3{margin:20px 0 8px;font-size:22px}.desk-card p{color:var(--muted)}.desk-card .go{color:var(--blue);font-weight:800}.answer-strip{background:var(--navy);color:#fff}.answer-grid{max-width:1240px;margin:auto;padding:42px 22px;display:grid;grid-template-columns:1fr 1fr 1fr;gap:18px}.answer-grid div{border-left:4px solid var(--orange);padding:5px 18px}.answer-grid b{display:block;font-size:22px}.answer-grid span{color:#b8cce4}.breadcrumbs{max-width:1240px;margin:0 auto;padding:18px 22px;color:#718096;font-size:13px}.breadcrumbs i{font-style:normal;margin:0 9px;color:#a8b5c4}.article-hero{max-width:1240px;margin:auto;padding:10px 22px 26px}.ticket{background:#fff;border:1px solid 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b{color:var(--danger)}.case-section{background:#fff;border:1px solid var(--line);padding:27px;margin-bottom:18px}.case-section h2{margin:0 0 10px;font-size:25px;color:var(--navy)}.case-section h2:before{content:"//";color:var(--orange);margin-right:8px}.case-section p{margin:0}.steps{counter-reset:step;list-style:none;padding:0;margin:0;display:grid;gap:10px}.steps li{counter-increment:step;background:#edf3f9;padding:12px 14px 12px 50px;position:relative}.steps li:before{content:counter(step);position:absolute;left:12px;top:9px;width:27px;height:27px;display:grid;place-items:center;background:var(--navy);color:#fff;font-weight:800}.faq details{border-top:1px solid var(--line);padding:13px 0}.faq summary{cursor:pointer;font-weight:800}.sidebar{display:flex;flex-direction:column;gap:16px}.side-card{background:#fff;border:1px solid var(--line);padding:20px}.side-card h3{margin-top:0;border-bottom:2px solid var(--navy);padding-bottom:10px}.side-card a{display:block;padding:7px 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