* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            background: #fdf7f7;
            color: #1e293b;
            line-height: 1.7;
            padding: 2rem 1rem;
        }
        .container {
            max-width: 820px;
            margin: 0 auto;
            background: #ffffff;
            padding: 2.5rem 2.8rem;
            border-radius: 20px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.05);
        }

        /* ===== 红色主题 Hero（无H1） ===== */
        .hero-title {
            font-size: 2.2rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            line-height: 1.2;
            margin-bottom: 0.5rem;
            color: #b71c1c;
        }
        .hero-title span {
            font-size: 1.4rem;
            font-weight: 400;
            color: #475569;
        }
        .subhead {
            font-size: 1.1rem;
            color: #475569;
            margin-bottom: 2rem;
            border-left: 4px solid #c62828;
            padding-left: 1.2rem;
            background: #ffebee;
            padding: 1rem 1.2rem;
            border-radius: 8px;
        }

        /* ===== 卡片样式（红色左边框） ===== */
        .card {
            background: white;
            border-radius: 16px;
            padding: 24px 28px;
            margin-bottom: 24px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
            border-left: 6px solid #c62828;
            transition: 0.2s;
        }
        .card:hover {
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.09);
            transform: translateY(-2px);
        }

        .card h2 {
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 0.75rem;
            color: #b71c1c;
        }
        .card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-top: 1.2rem;
            margin-bottom: 0.4rem;
            color: #b71c1c;
        }
        .card p {
            margin-bottom: 0.9rem;
            color: #334155;
        }
        .card ul,
        .card ol {
            margin: 0.6rem 0 0.8rem 1.8rem;
            color: #334155;
        }
        .card li {
            margin-bottom: 0.3rem;
        }

        /* ===== 高亮框（红色系） ===== */
        .highlight-box {
            background: #ffebee;
            border-radius: 12px;
            padding: 1.2rem 1.6rem;
            margin: 1.2rem 0;
            border-left: 5px solid #c62828;
        }
        .highlight-box strong {
            color: #b71c1c;
        }

        /* ===== 表格 ===== */
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.2rem 0;
            font-size: 0.95rem;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
        }
        th {
            background: #b71c1c;
            color: #ffffff;
            font-weight: 600;
            text-align: left;
            padding: 0.75rem 1rem;
        }
        td {
            background: #ffffff;
            padding: 0.7rem 1rem;
            border-bottom: 1px solid #f0e0e0;
        }
        tr:last-child td {
            border-bottom: none;
        }

        /* ===== 规格网格 ===== */
        .spec-grid {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 0.4rem 1.2rem;
            background: #fefafa;
            padding: 1.2rem 1.6rem;
            border-radius: 12px;
            margin: 1rem 0;
            border: 1px solid #f0e0e0;
        }
        .spec-grid .label {
            font-weight: 600;
            color: #b71c1c;
        }
        .spec-grid .value {
            color: #334155;
        }

        /* ===== Checklist（红色勾选） ===== */
        .checklist {
            list-style: none;
            padding-left: 0;
            margin: 1rem 0 1.4rem 0;
        }
        .checklist li {
            padding: 0.4rem 0 0.4rem 2rem;
            background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="%23c62828" stroke-width="3" stroke-linecap="round" stroke-linejoin="round"><polyline points="20 6 9 17 4 12"/></svg>') left center no-repeat;
            background-size: 1.2rem;
            margin-bottom: 0.1rem;
        }

        /* ===== FAQ ===== */
        .faq-item {
            border-bottom: 1px solid #f0e0e0;
            padding: 1.2rem 0;
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-item strong {
            display: block;
            font-size: 1.05rem;
            color: #b71c1c;
            margin-bottom: 0.2rem;
        }
        .faq-item p {
            margin-bottom: 0;
        }

        /* ===== CTA 内联（红色虚线边框） ===== */
        .cta-inline {
            background: #ffebee;
            padding: 16px 20px;
            border-radius: 12px;
            margin: 16px 0 4px;
            text-align: center;
            border: 2px dashed #c62828;
        }
        .cta-inline a {
            color: #b71c1c;
            font-weight: 700;
            text-decoration: none;
            font-size: 1.05rem;
        }
        .cta-inline a:hover {
            text-decoration: underline;
            color: #8e0000;
        }
        .cta-inline .arrow {
            display: inline-block;
            margin-left: 8px;
            transition: 0.2s;
        }
        .cta-inline a:hover .arrow {
            transform: translateX(4px);
        }

        /* ===== 结尾 CTA 区块（红色主按钮） ===== */
        .closing-section {
            background: #ffebee;
            border-radius: 28px;
            padding: 32px 28px;
            margin: 32px 0 20px;
            text-align: center;
        }
        .closing-section h2 {
            color: #b71c1c;
            font-size: 1.6rem;
            margin-bottom: 12px;
        }
        .closing-section p {
            max-width: 700px;
            margin: 0 auto 12px;
            font-size: 1.05rem;
            color: #334155;
        }
        .closing-section .cta-link {
            display: inline-block;
            background: #c62828;
            color: white;
            padding: 12px 36px;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 700;
            font-size: 1.05rem;
            margin-top: 12px;
            transition: 0.2s;
        }
        .closing-section .cta-link:hover {
            background: #8e0000;
            transform: scale(1.02);
        }

        .meta-note {
            font-size: 0.85rem;
            color: #64748b;
            background: #f8fafc;
            padding: 0.6rem 1rem;
            border-radius: 8px;
            margin-top: 0.2rem;
        }

        .footer-note {
            text-align: center;
            font-size: 0.8rem;
            color: #999;
            padding: 20px 0 10px;
            border-top: 1px solid #f0cfcf;
            margin-top: 10px;
        }

        @media (max-width: 640px) {
            .container {
                padding: 1.5rem 1.2rem;
            }
            .hero-title {
                font-size: 1.7rem;
            }
            .hero-title span {
                font-size: 1.1rem;
            }
            .spec-grid {
                grid-template-columns: 1fr;
                gap: 0.2rem;
            }
            table {
                font-size: 0.85rem;
            }
            th, td {
                padding: 0.5rem 0.7rem;
            }
            .card {
                padding: 18px 16px;
            }
            .closing-section {
                padding: 24px 18px;
            }
            .closing-section h2 {
                font-size: 1.3rem;
            }
        }