/* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        body {
            font-family: 'Roboto', 'Segoe UI', sans-serif;
            background: #ffffff;
            color: #1a1a2e;
            line-height: 1.6;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Core Advantages Module – Pure White Background ===== */
        .core-advantages {
            padding: 80px 0 100px;
            background: #ffffff;           /* 纯白背景 */
            position: relative;
            overflow: hidden;
        }

        /* 移除所有装饰伪元素（径向渐变圆点） */
        .core-advantages::before,
        .core-advantages::after {
            display: none;
        }

        /* ---- Section Header ---- */
        .section-header {
            text-align: center;
            margin-bottom: 60px;
            position: relative;
            z-index: 1;
        }

        .section-badge {
            display: inline-block;
            background: rgba(42, 92, 170, 0.10);
            color: #2A5CAA;
            font-size: 0.7rem;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            padding: 6px 22px;
            border-radius: 30px;
            margin-bottom: 18px;
            border: 1px solid rgba(42, 92, 170, 0.08);
        }

        .section-header h2 {
            font-family: 'Montserrat', sans-serif;
            font-size: 2.6rem;
            font-weight: 800;
            color: #1a1a2e;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
        }

        .section-header h2 span {
            color: #2A5CAA;
            position: relative;
        }

        .section-header h2 span::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 0;
            width: 100%;
            height: 8px;
            background: rgba(255, 107, 53, 0.25);
            border-radius: 4px;
            z-index: -1;
        }

        .section-header p {
            font-size: 1.1rem;
            color: #555;
            max-width: 600px;
            margin: 0 auto;
            font-weight: 400;
        }

        /* ---- Advantage Grid ---- */
        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            position: relative;
            z-index: 1;
        }

        /* ---- Advantage Card ---- */
        .adv-card {
            background: #ffffff;
            border-radius: 20px;
            padding: 40px 32px 36px;
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.04);
            border: 1px solid rgba(42, 92, 170, 0.06);
            transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
            position: relative;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            text-align: left;
        }

        .adv-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, #2A5CAA, #4A7CC8);
            border-radius: 20px 20px 0 0;
            opacity: 0;
            transition: opacity 0.4s ease;
        }

        .adv-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 60px rgba(42, 92, 170, 0.12);
            border-color: rgba(42, 92, 170, 0.12);
        }

        .adv-card:hover::before {
            opacity: 1;
        }

        .adv-card .card-number {
            position: absolute;
            top: 16px;
            right: 20px;
            font-family: 'Montserrat', sans-serif;
            font-size: 0.7rem;
            font-weight: 700;
            color: rgba(42, 92, 170, 0.12);
            letter-spacing: 0.5px;
        }

        /* ---- Icon ---- */
        .adv-icon {
            width: 68px;
            height: 68px;
            margin-bottom: 24px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, rgba(42, 92, 170, 0.06), rgba(74, 124, 200, 0.10));
            border-radius: 16px;
            transition: all 0.4s ease;
            position: relative;
        }

        .adv-card:hover .adv-icon {
            background: linear-gradient(135deg, rgba(42, 92, 170, 0.12), rgba(74, 124, 200, 0.18));
            transform: scale(1.02);
        }

        .adv-icon svg {
            width: 36px;
            height: 36px;
            display: block;
            transition: transform 0.4s ease;
        }

        .adv-card:hover .adv-icon svg {
            transform: scale(1.05) rotate(-2deg);
        }

        /* ---- Content ---- */
        .adv-card h3 {
            font-family: 'Montserrat', sans-serif;
            font-size: 1.35rem;
            font-weight: 700;
            color: #1a1a2e;
            margin: 0 0 10px 0;
            line-height: 1.3;
        }

        .adv-card h3 .highlight {
            color: #2A5CAA;
        }

        .adv-card .adv-desc {
            font-size: 0.95rem;
            color: #555;
            line-height: 1.7;
            margin: 0 0 18px 0;
            flex: 1;
        }

        /* ---- Feature List ---- */
        .adv-features {
            list-style: none;
            padding: 0;
            margin: 0 0 20px 0;
            width: 100%;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .adv-features li {
            font-size: 0.85rem;
            color: #444;
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 4px 0;
        }

        .adv-features li .check {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 18px;
            height: 18px;
            background: #2A5CAA;
            border-radius: 50%;
            color: #fff;
            font-size: 11px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .adv-features li .check.accent {
            background: #FF6B35;
        }

        /* ---- Tag ---- */
        .adv-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 16px 4px 14px;
            border-radius: 20px;
            font-size: 0.7rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            color: #fff;
            background: linear-gradient(135deg, #2A5CAA, #4A7CC8);
            margin-top: 4px;
            transition: all 0.3s ease;
        }

        .adv-card:hover .adv-tag {
            transform: translateX(4px);
        }

        .adv-tag.tag-accent {
            background: linear-gradient(135deg, #FF6B35, #ff8a5c);
        }

        .adv-tag.tag-green {
            background: linear-gradient(135deg, #0f9d58, #34a853);
        }

        .adv-tag .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.6);
            display: inline-block;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .advantages-grid { gap: 24px; }
            .adv-card { padding: 32px 24px 28px; }
            .section-header h2 { font-size: 2.2rem; }
        }

        @media (max-width: 820px) {
            .advantages-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
            .core-advantages { padding: 60px 0 70px; }
        }

        @media (max-width: 600px) {
            .advantages-grid { grid-template-columns: 1fr; max-width: 460px; margin: 0 auto; }
            .core-advantages { padding: 48px 0 56px; }
            .section-header h2 { font-size: 1.8rem; }
            .section-header p { font-size: 1rem; }
            .adv-card { padding: 28px 20px 24px; }
            .adv-icon { width: 56px; height: 56px; }
            .adv-icon svg { width: 30px; height: 30px; }
            .adv-card h3 { font-size: 1.2rem; }
            .adv-card .card-number { top: 12px; right: 14px; font-size: 0.6rem; }
        }

        @media (max-width: 400px) {
            .container { padding: 0 16px; }
            .section-header h2 { font-size: 1.5rem; }
            .adv-card h3 { font-size: 1.05rem; }
            .adv-features li { font-size: 0.8rem; }
        }