/* ========== 全局样式 ========== */

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
        }
        body {
            background: linear-gradient(145deg, #f0f7fa 0%, #e6f0f4 100%);
            min-height: 100vh;
            padding: 2rem 1.5rem;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }
        .container {
            max-width: 1200px;
            width: 100%;
            background: rgba(255,255,255,0.8);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-radius: 40px;
            box-shadow: 0 20px 40px -10px rgba(0,32,48,0.2);
            padding: 2.2rem;
            border: 1px solid rgba(255,255,255,0.5);
        }
        h1 {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 2.2rem;
            font-weight: 650;
            color: #0e3b4a;
            margin-bottom: 0.4rem;
        }
        h1 span {
            background: #1e5a6a;
            color: white;
            font-size: 1rem;
            padding: 0.2rem 1rem;
            border-radius: 40px;
            font-weight: 450;
        }
        
        
        .sub {
            font-size: 1.1rem;
            color: #3c6e7a;
            margin-bottom: 2rem;
            border-left: 6px solid #2f95a8;
            padding-left: 1.3rem;
            background: linear-gradient(to right, transparent, rgba(47,149,168,0.04));
            line-height: 1.5;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.8rem;
            margin-bottom: 1.8rem;
        }
        @media (max-width: 800px) {
            .grid-2 { grid-template-columns: 1fr; }
            .container { padding: 1.5rem; }
        }
        .card {
            background: white;
            border-radius: 28px;
            padding: 1.8rem 1.6rem;
            box-shadow: 0 6px 16px rgba(0,32,48,0.04);
            border: 1px solid rgba(100, 164, 176, 0.2);
            transition: transform 0.2s;
        }
        .card:hover {
            box-shadow: 0 12px 24px rgba(47,149,168,0.08);
        }
        .card h2 {
            font-size: 1.3rem;
            font-weight: 600;
            color: #0e5a67;
            margin-bottom: 1.4rem;
            display: flex;
            align-items: center;
            gap: 10px;
            border-bottom: 2px solid #cbe9ef;
            padding-bottom: 0.7rem;
        }
        label {
            font-size: 0.85rem;
            font-weight: 600;
            color: #1f6875;
            text-transform: uppercase;
            letter-spacing: 0.8px;
            display: block;
            margin-bottom: 0.4rem;
        }
        input, select, textarea {
            width: 100%;
            padding: 0.9rem 1.3rem;
            border: 1.8px solid #ddeef2;
            border-radius: 24px;
            font-size: 0.98rem;
            background: #f9fdfe;
            transition: 0.18s;
            color: #103f4b;
            margin-bottom: 1.2rem;
        }
        input:focus, select:focus, textarea:focus {
            border-color: #2f95a8;
            background: white;
            box-shadow: 0 0 0 4px rgba(47,149,168,0.08);
            outline: none;
        }
        textarea {
            min-height: 110px;
            resize: vertical;
        }
        .btn {
            background: #1d6a7a;
            color: white;
            border: none;
            padding: 0.9rem 1.8rem;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1.05rem;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            cursor: pointer;
            transition: 0.15s;
            width: 100%;
            border: 1px solid #0f525f;
            box-shadow: 0 6px 0 #0a404b;
        }
        .btn:hover {
            background: #258396;
            transform: translateY(-2px);
            box-shadow: 0 8px 0 #0a404b;
        }
        .btn:active {
            transform: translateY(4px);
            box-shadow: 0 2px 0 #0a404b;
        }
        .btn:disabled {
            opacity: 0.5;
            transform: none;
            box-shadow: 0 6px 0 #0a404b;
            pointer-events: none;
        }

        .status-badge {
            margin-top: 1rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: #1e6570;
            font-size: 0.85rem;
            font-weight: 500;
        }
        .secure-badge {
            background: #1e5a6a;
            color: white;
            padding: 0.25rem 1.1rem;
            border-radius: 30px;
            font-size: 0.75rem;
        }
        .feed-result {
            margin-top: 1rem;
            padding: 0.7rem 1.2rem;
            border-radius: 40px;
            font-size: 0.9rem;
            background: #edf5f7;
            color: #16616e;
        }
        .feed-success { background: #e1f0e8; color: #0f6e4a; border-left: 6px solid #2e9c6b; }
        .feed-error { background: #ffe8e6; color: #b13b2e; border-left: 6px solid #c63b2e; }
        hr {
            margin: 1.8rem 0 1.2rem;
            border: none;
            border-top: 2px dashed #cbe1e6;
        }
        .footer-note {
            margin-top: 2rem;
            text-align: center;
            font-size: 0.8rem;
            color: #5f8691;
        }
        .file-status-success { color: #0f6e4a; background: #e1f0e8; padding: 0.2rem 0.8rem; border-radius: 30px; display: inline-block; font-size: 0.8rem; }
        .file-status-error { color: #b13b2e; background: #ffe8e6; padding: 0.2rem 0.8rem; border-radius: 30px; display: inline-block; font-size: 0.8rem; }
        .file-status-waiting { color: #5f8691; background: #e9f0f2; padding: 0.2rem 0.8rem; border-radius: 30px; display: inline-block; font-size: 0.8rem; }
        .file-status-loading { color: #1e5a6a; background: #d5eef2; padding: 0.2rem 0.8rem; border-radius: 30px; display: inline-block; font-size: 0.8rem; position: relative; padding-left: 1.8rem; }
        .file-status-loading:before {
            content: '';
            position: absolute; left: 0.5rem; top: 0.4rem;
            width: 0.8rem; height: 0.8rem;
            border: 2px solid #1e5a6a;
            border-top-color: transparent;
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }
        @keyframes spin { to { transform: rotate(360deg); } }
        
        /* ===== 输出区域样式 ===== */
.output-area {
    background: #f2f9fb;
    border-radius: 22px;
    padding: 1.5rem;
    min-height: 820px;
    max-height: 1400px;
    overflow-y: auto;
    white-space: pre-wrap;
    font-size: 0.96rem;
    line-height: 1.65;
    color: #0a3842;
    border: 1px solid #b7d9e0;
    font-family: 'Inter', 'SF Mono', monospace;
    text-align: left;
}