/* ========== 模块网格 ========== */
.modules-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

/* ========== 卡片 ========== */
.module-card {
    background: #ffffff;
    border-radius: 24px;
    padding: 36px 28px 32px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02), 0 1px 4px rgba(0, 0, 0, 0.02);
    transition: transform 0.25s ease, box-shadow 0.30s ease, border-color 0.25s ease;
    border: 1px solid rgba(0, 0, 0, 0.04);
    position: relative;
    display: flex;
    flex-direction: column;
}

.module-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(254, 99, 10, 0.07), 0 8px 24px rgba(0, 0, 0, 0.03);
    border-color: rgba(254, 99, 10, 0.15);
}

/* 顶部装饰线 — 浅色橙 */
.module-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 28px;
    right: 28px;
    height: 3px;
    background: linear-gradient(90deg, #fe630a, #ff8a4a, #fe630a);
    background-size: 200% 100%;
    border-radius: 0 0 4px 4px;
    opacity: 0.5;
    transition: opacity 0.3s ease, background-position 0.6s ease;
}

.module-card:hover::before {
    opacity: 1;
    background-position: 100% 0;
}

/* 图标容器 — 浅色背景 + 橙 */
.module-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    background: rgba(254, 99, 10, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    transition: background 0.25s ease, transform 0.25s ease;
    flex-shrink: 0;
}

.module-card:hover .module-icon {
    background: rgba(254, 99, 10, 0.14);
    transform: scale(1.02);
}

.module-icon svg {
    width: 28px;
    height: 28px;
    stroke: #fe630a;
    stroke-width: 1.8;
    fill: none;
    transition: stroke 0.25s ease;
}

.module-card:hover .module-icon svg {
    stroke: #e85a0a;
}

/* 标题 */
.module-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 10px;
    letter-spacing: -0.01em;
}

.module-card h3 .highlight {
    color: #fe630a;
}

/* 描述 */
.module-card p {
    font-size: 0.95rem;
    color: #555;
    line-height: 1.7;
    margin-bottom: 20px;
    flex: 1;
}

/* 标签组 (浅色标签) */
.module-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.module-tags span {
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.3px;
    padding: 4px 14px;
    border-radius: 40px;
    background: rgba(254, 99, 10, 0.06);
    color: #fe630a;
    border: 1px solid rgba(254, 99, 10, 0.08);
    transition: background 0.2s ease, border-color 0.2s ease;
}

.module-card:hover .module-tags span {
    background: rgba(254, 99, 10, 0.10);
    border-color: rgba(254, 99, 10, 0.18);
}

/* 链接 / 按钮 (浅色橙) */
.module-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    color: #fe630a;
    text-decoration: none;
    padding: 6px 0;
    border-bottom: 2px solid transparent;
    transition: border-color 0.2s ease, gap 0.2s ease;
    align-self: flex-start;
    margin-top: 4px;
}

.module-link:hover {
    border-bottom-color: #fe630a;
    gap: 12px;
}

.module-link svg {
    width: 18px;
    height: 18px;
    stroke: #fe630a;
    stroke-width: 2;
    fill: none;
    transition: transform 0.25s ease;
}

.module-link:hover svg {
    transform: translateX(4px);
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
    .modules-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 28px;
    }
}

@media (max-width: 680px) {
    .modules-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .section-header p {
        font-size: 1rem;
    }

    .module-card {
        padding: 28px 22px 26px;
    }
}

@media (max-width: 400px) {
    body {
        padding: 20px 12px;
    }
    .container {
        padding: 0 12px;
    }
    .module-card {
        padding: 24px 18px 22px;
    }
}


















        /* ===== 卡片网格 ===== */
        .grid-cards {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
            margin-top: 12px;
        }

        .card {
            background: #ffffff;
            border-radius: 28px;
            padding: 36px 30px 32px;
            box-shadow: var(--card-shadow);
            border: 1px solid var(--border-light);
            transition: transform 0.25s ease, box-shadow 0.35s ease, border-color 0.25s ease;
            position: relative;
            overflow: hidden;
        }

        .card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--primary);
            opacity: 0;
            transition: opacity 0.3s;
        }

        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--card-hover-shadow);
            border-color: rgba(254, 99, 10, 0.25);
        }

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

        .card-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 18px;
            background: var(--primary-ultra-light);
            color: var(--primary);
            font-size: 1.6rem;
            margin-bottom: 18px;
            transition: background 0.25s, color 0.25s, transform 0.2s;
        }
        .card-icon>i{
            font-size: 2rem;
        }

        .card:hover .card-icon {
            background: var(--primary);
            color: #fff;
            transform: scale(1.02);
        }

        .card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-dark);
        }

        .card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 18px;
        }

        .card .feature-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .card .feature-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--text-dark);
            padding: 5px 0;
            border-bottom: 1px solid rgba(0, 0, 0, 0.03);
        }
        .card .feature-list li > i {
            font-size: 1rem;
        }

        .card .feature-list li:last-child {
            border-bottom: none;
        }

        .card .feature-list i {
            color: var(--primary);
            font-size: 0.8rem;
            width: 18px;
            text-align: center;
        }

        .card .tag {
            display: inline-block;
            background: var(--primary-ultra-light);
            color: var(--primary);
            font-size: 0.7rem;
            font-weight: 600;
            padding: 2px 12px;
            border-radius: 40px;
            margin-top: 6px;
            border: 1px solid rgba(254, 99, 10, 0.1);
        }


        /* ===== 响应式 ===== */
        @media (max-width: 768px) {
            .section-header h2 {
                font-size: 2rem;
            }

            .stats-row {
                gap: 28px;
                padding: 24px 20px;
                border-radius: 32px;
                flex-wrap: wrap;
            }

            .stat-item .number {
                font-size: 1.6rem;
            }

            .nav-links {
                gap: 18px;
                font-size: 0.85rem;
            }

            .nav-cta {
                padding: 6px 14px;
                font-size: 0.8rem;
            }

            .grid-cards {
                grid-template-columns: 1fr;
            }

            .cta-section {
                padding: 32px 20px;
            }

            .cta-section h3 {
                font-size: 1.4rem;
            }

            .btn-outline {
                margin-left: 0;
                margin-top: 12px;
                display: inline-block;
            }
        }

        @media (max-width: 480px) {
            .navbar .container {
                flex-wrap: wrap;
                gap: 12px;
            }

            .nav-links {
                flex-wrap: wrap;
                justify-content: center;
                gap: 12px 16px;
            }

            .section-header .badge {
                font-size: 0.7rem;
            }

            .stats-row {
                flex-direction: column;
                gap: 12px;
                padding: 20px;
                border-radius: 28px;
            }
        }