/* ============================================
   jbd捕鱼 — 珊瑚浪潮 · 设计系统
   风格：暖珊瑚 × 冷薄荷 × 杂志层叠
   ============================================ */

/* 基础重置 */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
    overflow-x: hidden;
    background: #FFFAF5;
    color: #2D3436;
    line-height: 1.6;
}

/* 核心布局 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 100px 0;
    position: relative;
}

.section:nth-child(even) {
    background: linear-gradient(135deg, #FFF5EF 0%, #F5FFFE 100%);
}

/* 波浪装饰分隔 */
.section::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 60px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 60'%3E%3Cpath fill='%23FFFAF5' d='M0,30 C360,60 720,0 1080,30 C1260,45 1360,35 1440,30 L1440,60 L0,60 Z'/%3E%3C/svg%3E") no-repeat bottom;
    background-size: cover;
    pointer-events: none;
    z-index: 1;
}

.section:nth-child(even)::after {
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 60'%3E%3Cpath fill='%23FFF5EF' d='M0,30 C360,60 720,0 1080,30 C1260,45 1360,35 1440,30 L1440,60 L0,60 Z'/%3E%3C/svg%3E") no-repeat bottom;
    background-size: cover;
}

.section:last-child::after {
    display: none;
}

/* 导航 — 玻璃珊瑚 */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 250, 245, 0.88);
    backdrop-filter: blur(20px) saturate(1.2);
    -webkit-backdrop-filter: blur(20px) saturate(1.2);
    border-bottom: 1px solid rgba(255, 107, 107, 0.15);
    box-shadow: 0 4px 30px rgba(255, 107, 107, 0.06);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 1.3rem;
    text-decoration: none;
    color: #2D3436;
    letter-spacing: -0.5px;
    position: relative;
}

.logo::after {
    content: '🐟';
    font-size: 1.1rem;
    animation: fishFloat 3s ease-in-out infinite;
}

@keyframes fishFloat {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-4px) rotate(3deg); }
}

.logo-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    background: linear-gradient(135deg, #FF6B6B, #FF8E53);
    color: #fff;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.main-nav a {
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 500;
    color: #2D3436;
    transition: all 0.3s ease;
    position: relative;
    padding: 4px 0;
}

.main-nav a::before {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2.5px;
    background: linear-gradient(90deg, #FF6B6B, #4ECDC4);
    border-radius: 2px;
    transition: width 0.3s ease;
}

.main-nav a:hover {
    color: #FF6B6B;
}

.main-nav a:hover::before {
    width: 100%;
}

.main-nav a.nav-cta {
    padding: 10px 24px;
    border-radius: 50px;
    color: #fff !important;
    font-weight: 600;
    background: linear-gradient(135deg, #FF6B6B, #FF8E53);
    box-shadow: 0 4px 20px rgba(255, 107, 107, 0.35);
    transition: all 0.3s ease;
}

.main-nav a.nav-cta::before {
    display: none;
}

.main-nav a.nav-cta:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 8px 30px rgba(255, 107, 107, 0.45);
}

.menu-toggle {
    display: none;
    width: 36px;
    height: 36px;
    border: none;
    background: rgba(255, 107, 107, 0.1);
    border-radius: 8px;
    cursor: pointer;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    transition: 0.3s;
}

.menu-toggle span {
    display: block;
    width: 20px;
    height: 2.5px;
    background: #FF6B6B;
    border-radius: 2px;
    transition: 0.3s;
}

.menu-toggle:hover {
    background: rgba(255, 107, 107, 0.2);
}

/* 首页Hero — 珊瑚浪潮 */
.hero {
    min-height: 85vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 72px;
    background: linear-gradient(160deg, #FFFAF5 0%, #FFF0E8 40%, #F0FFFD 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255, 107, 107, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -20%;
    left: -5%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(78, 205, 196, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-content {
    max-width: 640px;
}

.hero-eyebrow {
    display: inline-block;
    font-size: 0.82rem;
    font-weight: 700;
    padding: 6px 18px;
    border-radius: 50px;
    margin-bottom: 20px;
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.12), rgba(78, 205, 196, 0.12));
    color: #FF6B6B;
    letter-spacing: 1px;
    text-transform: uppercase;
    border: 1px solid rgba(255, 107, 107, 0.15);
}

.hero h1 {
    font-size: 3.2rem;
    line-height: 1.15;
    margin-bottom: 20px;
    font-weight: 800;
    color: #1A1A2E;
    letter-spacing: -1px;
}

.hero h1 span {
    background: linear-gradient(135deg, #FF6B6B, #FF8E53, #4ECDC4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.1rem;
    opacity: 0.7;
    max-width: 520px;
    margin-bottom: 36px;
    line-height: 1.7;
    color: #555;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-image {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(255, 107, 107, 0.15);
    position: relative;
    transform: perspective(800px) rotateY(-2deg);
    transition: transform 0.6s ease;
}

.hero-image:hover {
    transform: perspective(800px) rotateY(0deg);
}

.hero-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.6s ease;
}

.hero-image:hover img {
    transform: scale(1.02);
}

.hero-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.1), rgba(78, 205, 196, 0.1));
    pointer-events: none;
}

/* 按钮 — 珊瑚质感 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    border: none;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.15), transparent);
    pointer-events: none;
}

.btn-primary {
    color: #fff;
    background: linear-gradient(135deg, #FF6B6B, #FF8E53);
    box-shadow: 0 4px 25px rgba(255, 107, 107, 0.35);
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 40px rgba(255, 107, 107, 0.45);
}

.btn-outline {
    background: transparent;
    border: 2px solid #FF6B6B;
    color: #FF6B6B;
}

.btn-outline:hover {
    background: rgba(255, 107, 107, 0.06);
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(255, 107, 107, 0.15);
}

/* 标签/标题 — 杂志风格 */
.section-label {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 3px;
    margin-bottom: 14px;
    color: #FF6B6B;
    text-transform: uppercase;
    position: relative;
    padding-left: 32px;
}

.section-label::before {
    content: '~';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.2rem;
    color: #4ECDC4;
}

.section-title {
    font-size: 2.4rem;
    margin-bottom: 16px;
    font-weight: 800;
    color: #1A1A2E;
    letter-spacing: -0.5px;
    line-height: 1.2;
}

.section-desc {
    max-width: 600px;
    opacity: 0.7;
    margin-bottom: 44px;
    font-size: 1.05rem;
    color: #666;
    line-height: 1.7;
}

/* 卡片网格 — 珊瑚层叠 */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 28px;
}

.category-card {
    border-radius: 20px;
    padding: 32px 28px;
    background: #fff;
    border: 1px solid rgba(255, 107, 107, 0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    box-shadow: 0 4px 20px rgba(0,0,0,0.03);
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #FF6B6B, #4ECDC4);
    border-radius: 20px 20px 0 0;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.category-card:hover {
    transform: translateY(-6px) scale(1.01);
    box-shadow: 0 20px 50px rgba(255, 107, 107, 0.1);
    border-color: rgba(255, 107, 107, 0.15);
}

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

.card-icon {
    width: 52px;
    height: 52px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 1.4rem;
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.1), rgba(78, 205, 196, 0.1));
    color: #FF6B6B;
    transition: all 0.4s ease;
}

.category-card:hover .card-icon {
    background: linear-gradient(135deg, #FF6B6B, #FF8E53);
    color: #fff;
    transform: scale(1.05) rotate(-5deg);
}

.category-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: #1A1A2E;
}

.category-card p {
    font-size: 0.92rem;
    opacity: 0.65;
    line-height: 1.6;
    margin-bottom: 18px;
    color: #555;
}

.card-link {
    font-weight: 600;
    font-size: 0.88rem;
    text-decoration: none;
    color: #FF6B6B;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap 0.3s ease;
}

.card-link::after {
    content: '→';
    transition: transform 0.3s ease;
}

.card-link:hover {
    gap: 10px;
}

.card-link:hover::after {
    transform: translateX(2px);
}

/* 特性块 — 交错层叠 */
.feature-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.feature-block:nth-child(even) .feature-image {
    order: 2;
}

.feature-block:nth-child(even) .feature-text {
    order: 1;
}

.feature-image {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 16px 48px rgba(78, 205, 196, 0.12);
    position: relative;
}

.feature-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.05), rgba(78, 205, 196, 0.08));
    border-radius: 20px;
    pointer-events: none;
}

.feature-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.7s ease;
}

.feature-image:hover img {
    transform: scale(1.03);
}

.feature-text {
    padding: 20px 0;
}

.feature-text h3 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: #1A1A2E;
    line-height: 1.3;
}

.feature-text p {
    font-size: 1rem;
    opacity: 0.7;
    line-height: 1.7;
    margin-bottom: 20px;
    color: #555;
}

.feature-list {
    list-style: none;
    margin-top: 16px;
}

.feature-list li {
    padding: 10px 0;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.98rem;
    color: #444;
    border-bottom: 1px solid rgba(0,0,0,0.04);
}

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

.feature-list li::before {
    content: '🐠';
    font-weight: 700;
    font-size: 1.1rem;
}

.feature-list li:nth-child(2)::before {
    content: '🐡';
}

.feature-list li:nth-child(3)::before {
    content: '🐟';
}

/* 数据条 — 珊瑚礁统计 */
.stats-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
    text-align: center;
}

.stat-item {
    padding: 32px 20px;
    border-radius: 20px;
    background: #fff;
    border: 1px solid rgba(255, 107, 107, 0.06);
    box-shadow: 0 4px 20px rgba(0,0,0,0.02);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.stat-item::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #FF6B6B, #4ECDC4);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.stat-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(255, 107, 107, 0.08);
}

.stat-item:hover::before {
    transform: scaleX(1);
}

.stat-number {
    font-size: 2.6rem;
    font-weight: 800;
    color: #FF6B6B;
    line-height: 1;
    margin-bottom: 4px;
}

.stat-number::after {
    content: '+';
    font-size: 1.8rem;
    color: #4ECDC4;
    margin-left: 2px;
}

.stat-label {
    font-size: 0.92rem;
    opacity: 0.6;
    margin-top: 8px;
    color: #666;
    font-weight: 500;
}

/* 内容墙 — 杂志网格 */
.content-wall {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 28px;
}

.content-wall-item {
    border-radius: 20px;
    overflow: hidden;
    background: #fff;
    border: 1px solid rgba(255, 107, 107, 0.06);
    box-shadow: 0 4px 20px rgba(0,0,0,0.02);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.content-wall-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 16px 48px rgba(255, 107, 107, 0.1);
    border-color: rgba(255, 107, 107, 0.12);
}

.content-wall-item img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.content-wall-item:hover img {
    transform: scale(1.04);
}

.content-wall-body {
    padding: 24px;
}

.content-wall-body .content-tag {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #4ECDC4;
    margin-bottom: 8px;
}

.content-wall-body h4 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: #1A1A2E;
    line-height: 1.3;
}

.content-wall-body p {
    font-size: 0.9rem;
    opacity: 0.65;
    line-height: 1.6;
    color: #555;
}

.content-wall-body .content-meta {
    margin-top: 14px;
    font-size: 0.8rem;
    color: #999;
    display: flex;
    align-items: center;
    gap: 12px;
}

/* FAQ — 珊瑚手风琴 */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border: 1px solid rgba(255, 107, 107, 0.08);
    border-radius: 16px;
    margin-bottom: 10px;
    overflow: hidden;
    cursor: pointer;
    background: #fff;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0,0,0,0.02);
}

.faq-item:hover {
    border-color: rgba(255, 107, 107, 0.15);
    box-shadow: 0 4px 20px rgba(255, 107, 107, 0.05);
}

.faq-item .faq-question {
    padding: 20px 24px;
    font-weight: 600;
    font-size: 1.02rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #1A1A2E;
    transition: color 0.3s ease;
}

.faq-item .faq-question::after {
    content: '+';
    font-size: 1.4rem;
    font-weight: 300;
    color: #FF6B6B;
    transition: transform 0.4s ease;
}

.faq-item.open .faq-question::after {
    transform: rotate(45deg);
}

.faq-item .faq-answer {
    padding: 0 24px 20px;
    display: none;
    opacity: 0.7;
    font-size: 0.95rem;
    line-height: 1.7;
    color: #555;
}

.faq-item.open .faq-answer {
    display: block;
    animation: fadeInUp 0.4s ease;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 0.7; transform: translateY(0); }
}

/* CTA横幅 — 珊瑚日落 */
.cta-banner {
    padding: 64px 32px;
    text-align: center;
    border-radius: 24px;
    background: linear-gradient(135deg, #FF6B6B, #FF8E53, #F4A261);
    color: #fff;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(255, 107, 107, 0.25);
}

.cta-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.cta-banner::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(78, 205, 196, 0.12) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.cta-banner h2 {
    font-size: 2.2rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 14px;
    position: relative;
    z-index: 2;
}

.cta-banner p {
    color: rgba(255,255,255,0.85);
    max-width: 560px;
    margin: 0 auto 28px;
    font-size: 1.05rem;
    position: relative;
    z-index: 2;
    opacity: 1;
}

.cta-banner .btn-primary {
    background: #fff;
    color: #FF6B6B;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    position: relative;
    z-index: 2;
}

.cta-banner .btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
}

.cta-banner .btn-primary::after {
    background: linear-gradient(135deg, rgba(255,107,107,0.05), transparent);
}

/* 页脚 — 深海薄荷 */
.site-footer {
    padding: 64px 0 32px;
    background: linear-gradient(180deg, #1A2A2F 0%, #0F1A1E 100%);
    color: rgba(255,255,255,0.8);
    position: relative;
}

.site-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #FF6B6B, #4ECDC4, #FF6B6B);
    background-size: 200% 100%;
    animation: shimmer 4s ease-in-out infinite;
}

@keyframes shimmer {
    0%, 100% { background-position: 0% 0%; }
    50% { background-position: 100% 0%; }
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
}

.footer-brand {
    max-width: 320px;
}

.footer-brand .logo {
    color: #fff;
    margin-bottom: 16px;
}

.footer-brand .logo::after {
    content: '🐟';
}

.footer-brand .logo-icon {
    background: linear-gradient(135deg, #4ECDC4, #45B7D1);
}

.footer-brand p {
    font-size: 0.9rem;
    opacity: 0.6;
    line-height: 1.7;
    margin-top: 12px;
}

.footer-col h4 {
    color: #fff;
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 18px;
    position: relative;
    padding-bottom: 10px;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: #4ECDC4;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a {
    color: rgba(255,255,255,0.55);
    text-decoration: none;
    font-size: 0.88rem;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.footer-col ul li a:hover {
    color: #4ECDC4;
    transform: translateX(4px);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.06);
    margin-top: 48px;
    padding-top: 24px;
    text-align: center;
    font-size: 0.82rem;
    opacity: 0.45;
    color: rgba(255,255,255,0.6);
}

/* 工具类 */
.text-accent {
    color: #FF6B6B;
}

.text-center {
    text-align: center;
}

.seo-description {
    max-width: 600px;
    margin: 0 auto 48px;
    opacity: 0.7;
    font-size: 1.02rem;
    line-height: 1.7;
    color: #666;
}

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

/* 额外装饰 — 珊瑚气泡 */
.section:nth-child(odd) .container::before {
    content: '˚ ˚ ˚';
    position: absolute;
    top: -20px;
    right: 40px;
    font-size: 2rem;
    color: rgba(78, 205, 196, 0.12);
    letter-spacing: 20px;
    pointer-events: none;
}

/* 响应式 — 浪潮适配 */
@media (max-width: 1024px) {
    .hero h1 { font-size: 2.6rem; }
    .section-title { font-size: 2rem; }
    .stat-number { font-size: 2.2rem; }
    .footer-grid { gap: 32px; }
}

@media (max-width: 768px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-content { text-align: center; }
    .hero p { margin: 0 auto 32px; }
    .hero-buttons { justify-content: center; }
    .hero h1 { font-size: 2.2rem; }

    .feature-block {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .feature-block:nth-child(even) .feature-image { order: 0; }
    .feature-block:nth-child(even) .feature-text { order: 0; }
    .feature-text { text-align: center; }
    .feature-list li { justify-content: center; }

    .stats-bar {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }

    .main-nav {
        display: none;
        position: fixed;
        top: 72px;
        left: 0;
        width: 100%;
        background: rgba(255, 250, 245, 0.98);
        backdrop-filter: blur(20px);
        padding: 24px 32px;
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
        box-shadow: 0 20px 40px rgba(0,0,0,0.06);
        border-bottom: 1px solid rgba(255, 107, 107, 0.1);
        z-index: 999;
    }

    .main-nav.open {
        display: flex;
    }

    .main-nav a {
        padding: 12px 16px;
        border-radius: 12px;
        font-size: 1rem;
    }

    .main-nav a::before { display: none; }

    .main-nav a:hover {
        background: rgba(255, 107, 107, 0.06);
    }

    .main-nav a.nav-cta {
        text-align: center;
        margin-top: 8px;
    }

    .menu-toggle {
        display: flex;
    }

    .section { padding: 72px 0; }
    .section-title { font-size: 1.8rem; }
    .cards-grid { gap: 20px; }
    .content-wall { gap: 20px; }
    .stat-item { padding: 24px 16px; }
    .cta-banner { padding: 48px 24px; }
}

@media (max-width: 480px) {
    .cards-grid,
    .content-wall,
    .stats-bar {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-brand { max-width: 100%; }
    .footer-col h4::after { left: 50%; transform: translateX(-50%); }
    .footer-col ul li a { justify-content: center; }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .hero h1 { font-size: 1.8rem; }
    .section-title { font-size: 1.5rem; }
    .hero-eyebrow { font-size: 0.72rem; }

    .stat-number { font-size: 1.8rem; }
    .stat-item { padding: 20px 16px; }
}

/* 自定义滚动条 — 珊瑚触感 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #FFFAF5;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, #FF6B6B, #4ECDC4);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, #FF8E53, #45B7D1);
}

/* 选中文本 — 珊瑚高亮 */
::selection {
    background: rgba(255, 107, 107, 0.2);
    color: #1A1A2E;
}

/* 打印样式 */
@media print {
    .site-header { position: static; }
    .hero { min-height: auto; }
    .section { padding: 40px 0; }
    .hero-image { transform: none; }
}