/* ============================================
   雅博教育 - 专业单招培训网站样式
   版本: 2.0
   ============================================ */

* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    /* 主色调 - 深蓝到青蓝渐变 */
    --primary: #2563EB;
    --primary-dark: #1D4ED8;
    --primary-darker: #1E3A5F;
    --primary-light: #DBEAFE;
    --primary-lighter: #EFF6FF;

    /* 强调色 - 金色系 */
    --accent: #F59E0B;
    --accent-dark: #D97706;
    --accent-light: #FEF3C7;
    --accent-lighter: #FFFBEB;

    /* 辅助色 - 绿色系 */
    --success: #10B981;
    --success-light: #D1FAE5;

    /* 中性色 */
    --bg: #F8FAFC;
    --bg-warm: #FEFDFB;
    --dark: #0F172A;
    --dark-soft: #1E293B;
    --text: #334155;
    --text-light: #64748B;
    --text-lighter: #94A3B8;
    --card: #FFFFFF;
    --border: #E2E8F0;
    --border-light: #F1F5F9;

    /* 设计系统 */
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --shadow: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
    --shadow-md: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
    --shadow-lg: 0 20px 25px -5px rgba(0,0,0,0.08), 0 8px 10px -6px rgba(0,0,0,0.04);
    --shadow-xl: 0 25px 50px -12px rgba(0,0,0,0.15);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Segoe UI", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.8;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   导航栏
   ============================================ */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 3px rgba(0,0,0,0.05), 0 1px 2px rgba(0,0,0,0.03);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-light);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
}

.nav-logo {
    font-size: 22px;
    font-weight: 800;
    color: var(--primary);
    text-decoration: none;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-logo::before {
    content: '🎓';
    font-size: 24px;
}

.nav-logo span {
    color: var(--accent-dark);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 4px;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
    white-space: nowrap;
    position: relative;
}

.nav-menu a:hover {
    background: var(--primary-lighter);
    color: var(--primary);
}

.nav-menu a.active {
    background: var(--primary);
    color: #fff;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
    padding: 8px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.hamburger:hover {
    background: var(--primary-lighter);
}

.hamburger span {
    width: 22px;
    height: 2.5px;
    background: var(--text);
    border-radius: 2px;
    transition: 0.3s;
}

/* ============================================
   首页 Hero 区域
   ============================================ */
.hero {
    background: linear-gradient(135deg, #1E3A5F 0%, #2563EB 40%, #3B82F6 70%, #60A5FA 100%);
    color: #fff;
    padding: 100px 24px 90px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.15) 0%, transparent 70%);
    border-radius: 50%;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
    border-radius: 50%;
}

.hero h1 {
    font-size: 44px;
    font-weight: 900;
    margin-bottom: 20px;
    letter-spacing: 1px;
    position: relative;
    z-index: 1;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.hero p {
    font-size: 18px;
    opacity: 0.95;
    max-width: 640px;
    margin: 0 auto 36px;
    line-height: 1.8;
    position: relative;
    z-index: 1;
}

.hero .slogan {
    font-size: 15px;
    opacity: 0.75;
    margin-top: 16px;
    letter-spacing: 4px;
    position: relative;
    z-index: 1;
    font-weight: 300;
}

.hero .btn {
    position: relative;
    z-index: 1;
}

/* ============================================
   内页 Hero 区域
   ============================================ */
.page-hero {
    background: linear-gradient(135deg, #1E3A5F 0%, #2563EB 60%, #3B82F6 100%);
    color: #fff;
    padding: 56px 24px 48px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    top: -40%;
    right: -15%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.12) 0%, transparent 70%);
    border-radius: 50%;
}

.page-hero h1 {
    font-size: 34px;
    font-weight: 800;
    margin-bottom: 12px;
    position: relative;
    z-index: 1;
}

.page-hero p {
    font-size: 16px;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

/* ============================================
   按钮
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 36px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    letter-spacing: 0.3px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    color: #fff;
    box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(245, 158, 11, 0.4);
}

.btn-outline {
    border: 2px solid rgba(255,255,255,0.7);
    color: #fff;
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(4px);
}

.btn-outline:hover {
    background: rgba(255,255,255,0.2);
    border-color: #fff;
}

.btn-green {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
}

.btn-green:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.35);
}

/* ============================================
   通用 Section
   ============================================ */
.section {
    padding: 72px 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.section-alt {
    background: linear-gradient(180deg, var(--primary-lighter) 0%, var(--bg) 100%);
    max-width: 100%;
    padding: 72px 24px;
}

.section-alt > .section-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    margin-bottom: 48px;
}

.section-title h2 {
    font-size: 30px;
    color: var(--dark);
    margin-bottom: 10px;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.section-title p {
    color: var(--text-light);
    font-size: 15px;
    font-weight: 400;
}

.section-title::after {
    content: '';
    display: block;
    width: 48px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    margin: 16px auto 0;
    border-radius: 2px;
}

/* ============================================
   统计卡片
   ============================================ */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 860px;
    margin: 0 auto;
}

.stat-card {
    background: var(--card);
    border-radius: var(--radius-lg);
    padding: 32px 20px;
    text-align: center;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.stat-card .num {
    font-size: 40px;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
    line-height: 1.2;
}

.stat-card .label {
    font-size: 14px;
    color: var(--text-light);
    font-weight: 500;
}

/* ============================================
   信息卡片
   ============================================ */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.card {
    background: var(--card);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    opacity: 0;
    transition: var(--transition);
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-6px);
}

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

.card-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    margin-bottom: 18px;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-lighter) 100%);
    color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.card h3 {
    font-size: 18px;
    color: var(--dark);
    margin-bottom: 10px;
    font-weight: 700;
}

.card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.8;
}

/* ============================================
   分类卡片（统考/对口）
   ============================================ */
.cat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 16px;
}

.cat-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 16px;
    text-align: center;
    text-decoration: none;
    color: var(--text);
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
    display: block;
    position: relative;
    overflow: hidden;
}

.cat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    opacity: 0;
    transition: var(--transition);
}

.cat-card:hover {
    border-color: var(--primary);
    background: var(--primary-lighter);
    color: var(--primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

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

.cat-card .cat-num {
    display: block;
    font-size: 24px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 6px;
}

/* ============================================
   数据表格
   ============================================ */
.data-table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    background: var(--card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
}

.data-table th {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
    padding: 16px 20px;
    text-align: left;
    font-weight: 600;
    font-size: 14px;
    letter-spacing: 0.3px;
}

.data-table td {
    padding: 14px 20px;
    border-bottom: 1px solid var(--border-light);
    font-size: 14px;
    color: var(--text);
}

.data-table tr:nth-child(even) {
    background: var(--bg);
}

.data-table tr:last-child td {
    border-bottom: none;
}

.data-table tr:hover {
    background: var(--primary-lighter);
}

/* ============================================
   信息块
   ============================================ */
.info-block {
    background: var(--card);
    border-radius: var(--radius-lg);
    padding: 36px;
    margin: 24px 0;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
}

.info-block h2,
.info-block h3 {
    color: var(--dark);
    margin-bottom: 16px;
    font-weight: 700;
}

.info-block h2 {
    font-size: 22px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--primary-light);
}

.info-block h3 {
    font-size: 18px;
}

.info-block p {
    font-size: 15px;
    line-height: 1.9;
    color: var(--text);
    margin-bottom: 12px;
}

.info-block p:last-child {
    margin-bottom: 0;
}

.info-block ul,
.info-block ol {
    padding-left: 24px;
    margin: 12px 0;
}

.info-block li {
    margin-bottom: 10px;
    font-size: 15px;
    line-height: 1.8;
    color: var(--text);
}

.info-block li::marker {
    color: var(--primary);
}

/* ============================================
   FAQ
   ============================================ */
.faq-item {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 12px;
    overflow: hidden;
    transition: var(--transition);
}

.faq-item:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.faq-q {
    padding: 20px 24px;
    font-weight: 600;
    color: var(--dark);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 15px;
    transition: var(--transition);
}

.faq-q:hover {
    background: var(--primary-lighter);
}

.faq-q::after {
    content: '+';
    font-size: 22px;
    color: var(--primary);
    font-weight: 700;
    transition: 0.3s;
    flex-shrink: 0;
    margin-left: 16px;
}

.faq-item.open .faq-q::after {
    content: '−';
    color: var(--accent-dark);
}

.faq-item.open .faq-q {
    color: var(--primary);
    border-bottom: 1px solid var(--border-light);
}

.faq-a {
    padding: 0 24px 20px;
    color: var(--text-light);
    font-size: 14px;
    line-height: 1.9;
    display: none;
}

.faq-item.open .faq-a {
    display: block;
}

/* ============================================
   时间轴
   ============================================ */
.timeline {
    position: relative;
    padding-left: 36px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--primary) 0%, var(--accent) 100%);
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    margin-bottom: 28px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -32px;
    top: 6px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--primary);
    border: 3px solid var(--primary-light);
    box-shadow: 0 0 0 4px var(--card);
}

.timeline-item h4 {
    color: var(--primary);
    font-size: 15px;
    margin-bottom: 6px;
    font-weight: 700;
}

.timeline-item p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
}

/* ============================================
   对比标签
   ============================================ */
.vs-good {
    color: var(--success);
    font-weight: 600;
}

.vs-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--accent-light) 0%, var(--accent-lighter) 100%);
    color: var(--accent-dark);
    font-size: 12px;
    padding: 3px 10px;
    border-radius: 20px;
    font-weight: 600;
    border: 1px solid var(--accent-light);
}

/* ============================================
   面包屑导航
   ============================================ */
.breadcrumb {
    max-width: 1200px;
    margin: 20px auto 0;
    padding: 0 24px;
    font-size: 13px;
    color: var(--text-light);
}

.breadcrumb a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

/* ============================================
   CTA 区域
   ============================================ */
.cta-section {
    background: linear-gradient(135deg, #1E3A5F 0%, #2563EB 50%, #3B82F6 100%);
    color: #fff;
    text-align: center;
    padding: 72px 24px;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -30%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.cta-section h2 {
    font-size: 30px;
    margin-bottom: 14px;
    font-weight: 800;
    position: relative;
    z-index: 1;
}

.cta-section p {
    opacity: 0.9;
    margin-bottom: 32px;
    font-size: 16px;
    position: relative;
    z-index: 1;
}

.cta-section .btn {
    position: relative;
    z-index: 1;
}

/* ============================================
   页脚
   ============================================ */
.footer {
    background: linear-gradient(180deg, #1E293B 0%, #0F172A 100%);
    color: #94A3B8;
    padding: 48px 24px 28px;
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 40px;
}

.footer h4 {
    color: #F1F5F9;
    font-size: 16px;
    margin-bottom: 16px;
    font-weight: 700;
}

.footer a {
    color: #94A3B8;
    text-decoration: none;
    font-size: 14px;
    display: block;
    margin-bottom: 10px;
    transition: color 0.3s;
}

.footer a:hover {
    color: var(--accent);
}

.footer-bottom {
    max-width: 1200px;
    margin: 36px auto 0;
    padding-top: 24px;
    border-top: 1px solid #334155;
    text-align: center;
    font-size: 13px;
    color: #64748B;
}

/* ============================================
   联系方式卡片
   ============================================ */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.contact-card {
    background: var(--card);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
    text-align: center;
    transition: var(--transition);
}

.contact-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.contact-card .icon {
    font-size: 40px;
    margin-bottom: 14px;
}

.contact-card h3 {
    font-size: 17px;
    color: var(--dark);
    margin-bottom: 8px;
    font-weight: 700;
}

.contact-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
}

/* ============================================
   特色区块
   ============================================ */
.feature-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    align-items: center;
    margin: 40px 0;
}

.feature-row.reverse {
    direction: rtl;
}

.feature-row.reverse > * {
    direction: ltr;
}

.feature-text h3 {
    font-size: 22px;
    color: var(--dark);
    margin-bottom: 14px;
    font-weight: 700;
}

.feature-text p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 16px;
}

.feature-image {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--accent-light) 100%);
    border-radius: var(--radius-xl);
    padding: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    font-size: 64px;
}

/* ============================================
   高亮提示框
   ============================================ */
.highlight-box {
    background: linear-gradient(135deg, var(--primary-lighter) 0%, var(--accent-lighter) 100%);
    border: 1px solid var(--primary-light);
    border-radius: var(--radius);
    padding: 24px;
    margin: 20px 0;
}

.highlight-box.warning {
    background: linear-gradient(135deg, #FEF3C7 0%, #FFFBEB 100%);
    border-color: #FDE68A;
}

.highlight-box.success {
    background: linear-gradient(135deg, var(--success-light) 0%, #ECFDF5 100%);
    border-color: #6EE7B7;
}

.highlight-box strong {
    color: var(--dark);
}

/* ============================================
   标签
   ============================================ */
.tag {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    margin: 2px 4px;
}

.tag-blue {
    background: var(--primary-light);
    color: var(--primary);
}

.tag-gold {
    background: var(--accent-light);
    color: var(--accent-dark);
}

.tag-green {
    background: var(--success-light);
    color: #059669;
}

/* ============================================
   返回链接
   ============================================ */
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary);
    text-decoration: none;
    font-size: 14px;
    margin-bottom: 20px;
    font-weight: 500;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.back-link:hover {
    background: var(--primary-lighter);
    text-decoration: none;
}

/* ============================================
   双栏布局
   ============================================ */
.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

/* ============================================
   响应式设计
   ============================================ */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 68px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(12px);
        flex-direction: column;
        padding: 16px;
        box-shadow: var(--shadow-lg);
        gap: 4px;
        border-bottom: 1px solid var(--border);
    }
    .nav-menu.open { display: flex; }
    .hamburger { display: flex; }

    .hero { padding: 64px 20px 56px; }
    .hero h1 { font-size: 30px; }
    .hero p { font-size: 15px; }

    .page-hero { padding: 40px 20px 36px; }
    .page-hero h1 { font-size: 26px; }

    .stat-grid { grid-template-columns: 1fr; gap: 16px; }
    .stat-card { padding: 24px 16px; }
    .stat-card .num { font-size: 32px; }

    .card-grid { grid-template-columns: 1fr; }
    .cat-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }

    .section { padding: 48px 16px; }
    .section-title h2 { font-size: 24px; }

    .footer-inner { grid-template-columns: 1fr; gap: 28px; }
    .info-block { padding: 24px 20px; }

    .data-table { font-size: 13px; }
    .data-table th, .data-table td { padding: 12px 14px; }

    .feature-row { grid-template-columns: 1fr; gap: 20px; }
    .feature-row.reverse { direction: ltr; }
    .feature-image { min-height: 150px; font-size: 48px; }

    .two-col { grid-template-columns: 1fr; gap: 20px; }

    .btn { padding: 12px 28px; font-size: 14px; }
    .cta-section { padding: 48px 20px; }
    .cta-section h2 { font-size: 24px; }

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

@media (max-width: 480px) {
    .nav-container { height: 60px; }
    .nav-logo { font-size: 18px; }
    .nav-logo::before { font-size: 20px; }
    .hero h1 { font-size: 26px; }
    .cat-grid { grid-template-columns: repeat(2, 1fr); }
    .cat-card { padding: 16px 12px; }
    .cat-card .cat-num { font-size: 20px; }
}

/* ============================================
   打印优化
   ============================================ */
@media print {
    .navbar, .cta-section, .hamburger { display: none; }
    .hero, .page-hero { background: #fff; color: #000; }
    .card, .info-block { box-shadow: none; border: 1px solid #ddd; }
}