:root{--bg:#faf7f2;--bg-card:#ffffff;--bg-subtle:#f3eee6;--bg-hover:#ede7dc;--text-primary:#3d3a36;--text-secondary:#6b665f;--text-tertiary:#a09b93;--text-inverse:#faf7f2;--accent:#e07856;--accent-hover:#d06a48;--accent-soft:#fce8e0;--accent-light:#fdf5f1;--success:#6b9e7e;--warning:#e0a856;--danger:#d4625a;--info:#6b8fae;--border:#e6dfd3;--border-light:#f0ebe0;--border-focus:#d4b8a8;--shadow-sm:0 1px 2px rgba(61,58,54,0.04);--shadow:0 2px 8px rgba(61,58,54,0.06);--shadow-md:0 4px 16px rgba(61,58,54,0.08);--shadow-lg:0 8px 32px rgba(61,58,54,0.10);--radius-sm:6px;--radius:10px;--radius-md:14px;--radius-lg:20px;--radius-full:9999px;--space-xs:4px;--space-sm:8px;--space-md:16px;--space-lg:24px;--space-xl:40px;--space-2xl:64px;--max-width:960px;--header-height:60px;--font-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Helvetica,Arial,sans-serif;--font-serif:"Songti SC","SimSun","Noto Serif SC",serif}*,:after,:before{box-sizing:border-box;margin:0;padding:0}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}body{font-family:var(--font-sans);background:var(--bg);color:var(--text-primary);line-height:1.6;font-size:16px}.site-footer{padding:32px 16px 24px;color:var(--text-tertiary);font-size:14px;text-align:center}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto;display:block}button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}.page-container{max-width:var(--max-width);margin:0 auto;padding:0 var(--space-lg)}.page-container.narrow{max-width:640px}.card{background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-md);padding:var(--space-lg);box-shadow:var(--shadow-sm);transition:box-shadow .2s ease,border-color .2s ease}.card:hover{box-shadow:var(--shadow)}.btn,.card-clickable{cursor:pointer}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-sm);padding:10px 20px;border:none;border-radius:var(--radius);font-size:14px;font-weight:500;transition:all .15s ease;white-space:nowrap}.btn-primary{background:var(--accent);color:var(--text-inverse)}.btn-primary:hover{background:var(--accent-hover)}.btn-primary:active{transform:scale(.98)}.btn-secondary{background:var(--bg-subtle);color:var(--text-primary)}.btn-secondary:hover{background:var(--bg-hover)}.btn-ghost{background:transparent;color:var(--text-secondary)}.btn-ghost:hover{background:var(--bg-subtle)}.btn-danger{background:transparent;color:var(--danger);border:1px solid var(--border)}.btn-danger:hover{background:#fdf0ef;border-color:var(--danger)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-sm{padding:6px 14px;font-size:13px}.btn-lg{padding:14px 28px;font-size:16px}.form-group{margin-bottom:var(--space-lg)}.form-label{display:block;font-size:13px;font-weight:500;color:var(--text-secondary);margin-bottom:var(--space-sm)}.form-input,.form-select,.form-textarea{width:100%;padding:12px 16px;border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-card);transition:border-color .15s ease,box-shadow .15s ease;outline:none}.form-input:focus,.form-select:focus,.form-textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.form-textarea{min-height:120px;resize:vertical;line-height:1.7}.form-error{color:var(--danger);font-size:13px}.form-error,.form-hint{margin-top:var(--space-xs)}.form-hint{color:var(--text-tertiary);font-size:12px}.tag{display:inline-flex;align-items:center;padding:2px 10px;font-size:12px;background:var(--accent-soft);color:var(--accent);border-radius:var(--radius-full);font-weight:500}.tag-neutral{background:var(--bg-subtle)}.tag-neutral,.text-secondary{color:var(--text-secondary)}.text-tertiary{color:var(--text-tertiary)}.text-sm{font-size:14px}.text-lg{font-size:18px}.text-xl{font-size:24px;font-weight:600}.text-2xl{font-size:32px;font-weight:700}.mt-sm{margin-top:var(--space-sm)}.mt-md{margin-top:var(--space-md)}.mt-lg{margin-top:var(--space-lg)}.mt-xl{margin-top:var(--space-xl)}.mb-sm{margin-bottom:var(--space-sm)}.mb-md{margin-bottom:var(--space-md)}.mb-lg{margin-bottom:var(--space-lg)}.mb-xl{margin-bottom:var(--space-xl)}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}.gap-sm{gap:var(--space-sm)}.gap-md{gap:var(--space-md)}.gap-lg{gap:var(--space-lg)}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:fadeIn .3s ease-out}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg)}::-webkit-scrollbar-thumb{background:var(--border);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--border-focus)}