:root{--site-primary: #0056a4;--site-primary-dark: #003d75;--site-primary-soft: #e8f2fc;--site-accent: #e65100;--site-text: #37474f;--site-text-strong: #1a2b3c;--site-text-muted: #607d8b;--site-border: rgba(0, 86, 164, .12);--site-bg: #ffffff;--site-bg-soft: #f5f8fb;--site-shadow: 0 4px 20px rgba(0, 40, 80, .06);--site-shadow-lg: 0 12px 40px rgba(0, 40, 80, .1);--site-max-w: 1120px;--site-header-h: 84px;--ddhd-nav-h: 56px;--ddhd-tab-h: 56px;--ddhd-max-w: 960px;--ddhd-radius: 12px;--ddhd-shadow: var(--site-shadow);--ddhd-primary: var(--site-primary);--ddhd-text-muted: var(--site-text-muted);--ddhd-border: var(--site-border)}*,*:before,*:after{box-sizing:border-box}html,body{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;font-size:16px;color:var(--site-text);background:var(--site-bg);-webkit-font-smoothing:antialiased}a{color:var(--site-primary);text-decoration:none}a:hover{text-decoration:underline}button{font-family:inherit;cursor:pointer}input,textarea,select{font-family:inherit;font-size:1rem}.site-btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 24px;border-radius:999px;border:2px solid transparent;font-size:15px;font-weight:600;text-decoration:none;transition:background .15s,color .15s,border-color .15s,opacity .15s;white-space:nowrap}.site-btn:hover{text-decoration:none}.site-btn.primary{background:var(--site-primary);color:#fff}.site-btn.primary:hover{background:var(--site-primary-dark)}.site-btn.outline{background:transparent;color:var(--site-primary);border-color:var(--site-primary)}.site-btn.outline:hover{background:var(--site-primary-soft)}.site-btn.ghost{background:transparent;color:var(--site-primary);border-color:transparent;padding-left:0}.site-btn.white{background:#fff;color:var(--site-primary)}.site-btn.outline-white{background:transparent;color:#fff;border-color:#fff9}.site-btn.outline-white:hover{background:#ffffff1a}.site-btn.full{width:100%}.site-btn:disabled{opacity:.6;cursor:not-allowed}.site-input,.site-textarea{width:100%;padding:12px 14px;border:1px solid #cfd8dc;border-radius:10px;outline:none;background:#fff;transition:border-color .15s}.site-input:focus,.site-textarea:focus{border-color:var(--site-primary)}.site-textarea{resize:vertical;min-height:100px}.page{max-width:var(--ddhd-max-w);margin:0 auto;padding:16px}.card{background:#fff;border-radius:var(--ddhd-radius);padding:20px;box-shadow:var(--ddhd-shadow);border:1px solid var(--ddhd-border)}.ddhd-btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 20px;border-radius:8px;border:none;font-size:15px;font-weight:600;transition:opacity .15s;text-decoration:none;cursor:pointer}.ddhd-btn:active{opacity:.88}.ddhd-btn.primary{background:var(--ddhd-primary);color:#fff}.ddhd-btn.ghost{background:#fff;color:var(--ddhd-primary);border:1px solid var(--ddhd-primary)}.ddhd-btn.full{width:100%}.ddhd-btn.sm{padding:6px 14px;font-size:13px}.inp{width:100%;padding:10px 12px;border:1px solid #cfd8dc;border-radius:8px;outline:none}.inp:focus{border-color:var(--ddhd-primary)}.area{width:100%;min-height:80px;padding:10px 12px;border:1px solid #cfd8dc;border-radius:8px;resize:vertical;outline:none}.lab{display:block;font-size:14px;font-weight:600;color:#546e7a;margin-bottom:6px}.mt{margin-top:12px}.empty,.loading{text-align:center;padding:40px 16px;color:var(--ddhd-text-muted)}.toolbar{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}