/* ===== 首页增强样式 ===== */

/* 材料全包 */
.materials-section { background: var(--bg-secondary); }
.materials-showcase {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 48px;
}
.material-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.material-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--purple-color));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}
.material-card:hover::before { transform: scaleX(1); }
.material-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}
.material-card .material-icon {
    width: 64px; height: 64px;
    border-radius: var(--radius-md);
    display: flex; align-items: center; justify-content: center;
    font-size: 28px;
    margin: 0 auto 18px;
}
.material-card h3 { font-size: 18px; margin-bottom: 10px; color: var(--text-primary); }
.material-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }
.mi-blue { background: rgba(14,165,233,0.1); color: var(--secondary-color); }
.mi-purple { background: rgba(168,85,247,0.1); color: var(--purple-color); }
.mi-green { background: rgba(16,185,129,0.1); color: var(--success-color); }
.mi-pink { background: rgba(236,72,153,0.1); color: var(--pink-color); }
.mi-orange { background: rgba(245,158,11,0.1); color: var(--accent-color); }
.mi-cyan { background: rgba(6,182,212,0.1); color: var(--cyan-color); }

/* 核心优势增强 */
.advantage-highlight {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    margin-top: 48px;
}
.advantage-highlight-text h3 {
    font-size: 28px;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--primary-color), var(--purple-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.advantage-highlight-text p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 20px;
}
.advantage-features-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.advantage-features-list .af-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 15px;
    color: var(--text-primary);
}
.advantage-features-list .af-item i {
    width: 28px; height: 28px;
    background: linear-gradient(135deg, var(--primary-color), var(--purple-color));
    color: white;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 12px;
    flex-shrink: 0;
}
.advantage-cards-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}
.adv-mini-card {
    background: white;
    border-radius: var(--radius-md);
    padding: 24px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}
.adv-mini-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}
.adv-mini-card i {
    font-size: 24px;
    margin-bottom: 12px;
    display: block;
}
.adv-mini-card h4 { font-size: 16px; margin-bottom: 8px; }
.adv-mini-card p { font-size: 13px; color: var(--text-secondary); line-height: 1.6; }

/* 承诺保障 */
.promise-section { background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%); color: white; }
.promise-section .section-header h2 { color: white; }
.promise-section .section-header p { color: rgba(255,255,255,0.7); }
.promise-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 48px;
}
.promise-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    text-align: center;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}
.promise-card:hover {
    background: rgba(255,255,255,0.1);
    transform: translateY(-6px);
    border-color: rgba(99,102,241,0.5);
    box-shadow: 0 10px 40px rgba(99,102,241,0.2);
}
.promise-card .promise-icon {
    width: 72px; height: 72px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--purple-color));
    display: flex; align-items: center; justify-content: center;
    font-size: 30px;
    margin: 0 auto 20px;
    box-shadow: 0 8px 24px rgba(99,102,241,0.3);
}
.promise-card h3 { font-size: 20px; margin-bottom: 12px; }
.promise-card p { font-size: 14px; color: rgba(255,255,255,0.7); line-height: 1.7; }

/* 定价方案 */
.pricing-section { background: var(--bg-secondary); }
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    margin-top: 48px;
    align-items: start;
}
.pricing-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: 40px 32px;
    text-align: center;
    border: 2px solid var(--border-color);
    transition: var(--transition);
    position: relative;
}
.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}
.pricing-card.popular {
    border-color: var(--primary-color);
    box-shadow: 0 10px 40px rgba(99,102,241,0.2);
    transform: scale(1.05);
}
.pricing-card.popular:hover { transform: scale(1.05) translateY(-8px); }
.pricing-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--primary-color), var(--purple-color));
    color: white;
    padding: 6px 20px;
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
}
.pricing-card .pricing-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--text-primary);
}
.pricing-card .pricing-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 20px;
}
.pricing-card .pricing-price {
    font-size: 48px;
    font-weight: 800;
    color: var(--primary-color);
    line-height: 1;
    margin-bottom: 4px;
}
.pricing-card .pricing-price .currency { font-size: 24px; vertical-align: super; }
.pricing-card .pricing-price .original {
    font-size: 18px;
    color: var(--text-light);
    text-decoration: line-through;
    font-weight: 400;
    margin-left: 8px;
}
.pricing-card .pricing-unit {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}
.pricing-card .pricing-features {
    text-align: left;
    margin-bottom: 28px;
}
.pricing-card .pricing-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    font-size: 14px;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
}
.pricing-card .pricing-features li:last-child { border-bottom: none; }
.pricing-card .pricing-features li i {
    color: var(--success-color);
    font-size: 14px;
    flex-shrink: 0;
}
.pricing-note {
    text-align: center;
    margin-top: 24px;
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* 在线进度跟踪 */
.tracking-section { background: var(--bg-primary); }
.tracking-demo {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
    margin-top: 48px;
}
.tracking-steps {
    display: flex;
    flex-direction: column;
    gap: 0;
}
.tracking-step {
    display: flex;
    gap: 20px;
    position: relative;
    padding-bottom: 28px;
}
.tracking-step:last-child { padding-bottom: 0; }
.tracking-step::before {
    content: '';
    position: absolute;
    left: 19px;
    top: 40px;
    bottom: 0;
    width: 2px;
    background: var(--border-color);
}
.tracking-step:last-child::before { display: none; }
.tracking-step.active::before { background: var(--primary-color); }
.tracking-step.done::before { background: var(--success-color); }
.tracking-step .ts-icon {
    width: 40px; height: 40px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
    background: var(--border-color);
    color: var(--text-light);
    z-index: 1;
}
.tracking-step.done .ts-icon { background: var(--success-color); color: white; }
.tracking-step.active .ts-icon {
    background: linear-gradient(135deg, var(--primary-color), var(--purple-color));
    color: white;
    box-shadow: 0 4px 12px rgba(99,102,241,0.3);
}
.tracking-step .ts-content h4 { font-size: 16px; margin-bottom: 4px; }
.tracking-step .ts-content p { font-size: 13px; color: var(--text-secondary); }
.tracking-step .ts-content .ts-time { font-size: 12px; color: var(--text-light); margin-top: 4px; }
.tracking-info-cards {
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.ti-card {
    background: white;
    border-radius: var(--radius-md);
    padding: 24px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}
.ti-card:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow-sm);
}
.ti-card h4 { font-size: 16px; margin-bottom: 8px; display: flex; align-items: center; gap: 10px; }
.ti-card h4 i { color: var(--primary-color); }
.ti-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }

/* 响应式 */
@media (max-width: 768px) {
    .materials-showcase { grid-template-columns: 1fr 1fr; }
    .advantage-highlight { grid-template-columns: 1fr; gap: 32px; }
    .advantage-cards-grid { grid-template-columns: 1fr 1fr; }
    .promise-grid { grid-template-columns: 1fr; }
    .pricing-grid { grid-template-columns: 1fr; max-width: 400px; margin-left: auto; margin-right: auto; }
    .pricing-card.popular { transform: none; }
    .pricing-card.popular:hover { transform: translateY(-8px); }
    .tracking-demo { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
    .materials-showcase { grid-template-columns: 1fr; }
    .advantage-cards-grid { grid-template-columns: 1fr; }
}