:root{--ink:#152238;--muted:#64748b;--line:#dbe3ec;--paper:#f4f7fa;--card:#fff;--accent:#1d4d73;--accent2:#b79558;--danger:#a83232;--shadow:0 16px 50px rgba(21,34,56,.09)}*{box-sizing:border-box}html{font-family:"Microsoft YaHei","PingFang SC",system-ui,sans-serif;background:var(--paper);color:var(--ink)}body{margin:0;min-height:100vh;background:radial-gradient(circle at 100% 0,#e9f0f6 0,transparent 35%),var(--paper)}a{color:inherit}.topbar{min-height:68px;background:#10283e;color:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 max(24px,calc((100vw - 1180px)/2));box-shadow:0 3px 14px rgba(0,0,0,.16)}.brand{text-decoration:none;font-weight:700;letter-spacing:.05em}.topnav{display:flex;gap:20px;align-items:center;font-size:14px}.topnav a,.link-button{color:#fff;text-decoration:none;opacity:.88}.inline-form{display:inline}.link-button{background:none;border:0;font:inherit;cursor:pointer}.container{max-width:1180px;margin:0 auto;padding:42px 24px 70px}.footer{text-align:center;color:var(--muted);font-size:13px;padding:24px}.hero{padding:34px 0 42px;border-bottom:1px solid var(--line);margin-bottom:34px}.hero h1,.page-heading h1{font-size:clamp(30px,4vw,48px);margin:8px 0 12px;letter-spacing:.02em}.hero p{font-size:17px;color:var(--muted);max-width:660px}.eyebrow{font-size:12px;letter-spacing:.24em;color:var(--accent2);font-weight:800}.tool-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:22px}.tool-card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:24px;box-shadow:var(--shadow);display:flex;flex-direction:column;min-height:265px;transition:.2s transform,.2s box-shadow}.tool-card:hover{transform:translateY(-3px);box-shadow:0 20px 55px rgba(21,34,56,.13)}.tool-head{display:flex;justify-content:space-between;align-items:center}.tool-icon{width:48px;height:48px;border-radius:13px;background:linear-gradient(145deg,#173b59,#2d6c91);display:grid;place-items:center;color:#fff;font-weight:800}.tool-icon:after{content:"工"}.icon-bot:after{content:"AI"}.icon-hotel:after{content:"店"}.icon-invoice:after{content:"票"}.icon-finance:after{content:"财"}.icon-quote:after{content:"价"}.icon-report:after{content:"表"}.icon-settings:after{content:"管"}.status-badge{font-size:12px;padding:5px 9px;border-radius:999px;background:#edf2f7;color:#475569}.status-enabled .status-badge{background:#e8f6ed;color:#237347}.status-maintenance .status-badge{background:#fff1df;color:#9a5f0a}.tool-card h2{font-size:20px;margin:22px 0 8px}.tool-card p{color:var(--muted);line-height:1.7;flex:1}.tool-action,.primary,.secondary,.danger{display:inline-flex;justify-content:center;align-items:center;border-radius:9px;border:0;padding:11px 16px;text-decoration:none;font-weight:700;cursor:pointer}.tool-action,.primary{background:var(--accent);color:#fff}.tool-action.disabled{background:#e7edf2;color:#8493a3;cursor:not-allowed}.secondary{background:#fff;border:1px solid var(--line)}.danger{background:#fff1f1;color:var(--danger);border:1px solid #f3c5c5}.auth-shell{min-height:calc(100vh - 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