/* ============================================================
   澳亚ay · 跨域新生 — 有机温暖 · 杂志风格设计系统
   配色：珊瑚暖粉 + 鼠尾草绿 + 蜜金 + 暖白
   风格：圆润有机 · 柔和渐变 · 精致排版 · 自然光影
   ============================================================ */

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
    overflow-x: hidden;
    background: #FDF7F3;
    color: #2C1F18;
    line-height: 1.6;
}

::selection {
    background: #FF7F6E;
    color: #fff;
}

/* ----- 滚动条美化 ----- */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #F5EDE6;
}
::-webkit-scrollbar-thumb {
    background: #D4C5B8;
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: #BFAA9A;
}

/* ----- 容器与区块 ----- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 96px 0;
    position: relative;
}

.section:nth-child(even) {
    background: #F8F2EC;
}

.section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    max-width: 600px;
    height: 1px;
    background: linear-gradient(90deg, transparent, #E8C37E40, transparent);
}

/* ----- 导航栏 · 固定顶部 ----- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(253, 247, 243, 0.88);
    backdrop-filter: blur(20px) saturate(1.2);
    -webkit-backdrop-filter: blur(20px) saturate(1.2);
    border-bottom: 1px solid rgba(232, 195, 126, 0.25);
    transition: all 0.3s ease;
}

.site-header.scrolled {
    background: rgba(253, 247, 243, 0.96);
    box-shadow: 0 4px 30px rgba(44, 31, 24, 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: 12px;
    font-weight: 700;
    font-size: 1.25rem;
    text-decoration: none;
    color: #2C1F18;
    letter-spacing: 0.02em;
    transition: opacity 0.2s;
}

.logo:hover {
    opacity: 0.8;
}

.logo-icon {
    width: 40px;
    height: 40px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    background: linear-gradient(135deg, #FF7F6E, #E8C37E);
    color: #fff;
    font-weight: 800;
    letter-spacing: 0;
    box-shadow: 0 4px 12px rgba(255, 127, 110, 0.3);
}

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

.main-nav a {
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    color: #4A3A32;
    transition: all 0.25s ease;
    position: relative;
    padding: 4px 0;
    letter-spacing: 0.03em;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #FF7F6E, #E8C37E);
    transition: width 0.3s ease;
    border-radius: 2px;
}

.main-nav a:hover {
    color: #FF7F6E;
}

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

.nav-cta {
    padding: 10px 24px !important;
    border-radius: 50px !important;
    color: #fff !important;
    font-weight: 600 !important;
    background: linear-gradient(135deg, #FF7F6E, #E8A07C) !important;
    box-shadow: 0 4px 16px rgba(255, 127, 110, 0.35);
    transition: all 0.3s ease !important;
    letter-spacing: 0.02em;
}

.nav-cta::after {
    display: none !important;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(255, 127, 110, 0.45) !important;
    color: #fff !important;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 8px;
    border-radius: 8px;
    transition: background 0.2s;
}

.menu-toggle:hover {
    background: rgba(255, 127, 110, 0.1);
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: #2C1F18;
    border-radius: 2px;
    transition: all 0.3s ease;
}

.menu-toggle.open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.open span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.open span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ----- Hero 区域 ----- */
.hero {
    min-height: 85vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 72px;
    background: linear-gradient(160deg, #FDF7F3 0%, #F5EDE6 50%, #F0E8E0 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -15%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255, 127, 110, 0.12) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -20%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(107, 155, 122, 0.10) 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: 1;
}

.hero-content {
    max-width: 600px;
}

.hero-eyebrow {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    padding: 6px 18px;
    border-radius: 50px;
    margin-bottom: 20px;
    background: rgba(255, 127, 110, 0.12);
    color: #FF7F6E;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border: 1px solid rgba(255, 127, 110, 0.2);
}

.hero h1 {
    font-size: 3.4rem;
    line-height: 1.1;
    font-weight: 800;
    margin-bottom: 20px;
    color: #2C1F18;
    letter-spacing: -0.02em;
}

.hero h1 .text-accent {
    background: linear-gradient(135deg, #FF7F6E, #E8C37E);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.1rem;
    opacity: 0.75;
    max-width: 520px;
    margin-bottom: 36px;
    line-height: 1.7;
    color: #4A3A32;
}

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

.hero-image {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(44, 31, 24, 0.10);
    position: relative;
}

.hero-image::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    pointer-events: none;
    z-index: 1;
}

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

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

/* ----- 按钮系统 ----- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 0.95rem;
    letter-spacing: 0.02em;
}

.btn-primary {
    color: #fff;
    background: linear-gradient(135deg, #FF7F6E, #E8A07C);
    box-shadow: 0 6px 20px rgba(255, 127, 110, 0.35);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(255, 127, 110, 0.45);
}

.btn-outline {
    background: transparent;
    border: 2px solid #D4C5B8;
    color: #2C1F18;
}

.btn-outline:hover {
    border-color: #FF7F6E;
    color: #FF7F6E;
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(255, 127, 110, 0.12);
}

/* ----- 标签 / 标题 ----- */
.section-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 12px;
    color: #9B8A7A;
    position: relative;
    padding-left: 20px;
}

.section-label::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 12px;
    height: 2px;
    background: #E8C37E;
    border-radius: 2px;
}

.section-title {
    font-size: 2.4rem;
    font-weight: 800;
    margin-bottom: 16px;
    color: #2C1F18;
    letter-spacing: -0.01em;
    line-height: 1.2;
}

.section-desc {
    max-width: 600px;
    opacity: 0.7;
    margin-bottom: 48px;
    color: #4A3A32;
    font-size: 1.05rem;
    line-height: 1.7;
}

/* ----- 卡片网格 ----- */
.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(212, 197, 184, 0.25);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    overflow: hidden;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #FF7F6E, #E8C37E, #6B9B7A);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.category-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 48px rgba(44, 31, 24, 0.08);
    border-color: rgba(255, 127, 110, 0.2);
}

.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, #FF7F6E15, #E8C37E15);
    color: #FF7F6E;
    transition: all 0.3s ease;
}

.category-card:hover .card-icon {
    background: linear-gradient(135deg, #FF7F6E25, #E8C37E25);
    transform: scale(1.05);
}

.category-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: #2C1F18;
}

.category-card p {
    font-size: 0.9rem;
    opacity: 0.65;
    line-height: 1.6;
    margin-bottom: 16px;
    color: #4A3A32;
}

.card-link {
    font-weight: 600;
    font-size: 0.85rem;
    text-decoration: none;
    color: #FF7F6E;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap 0.3s ease;
}

.card-link:hover {
    gap: 12px;
    color: #E87A5D;
}

/* ----- 特性块 (左右图文) ----- */
.feature-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

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

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

.feature-image {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 16px 48px rgba(44, 31, 24, 0.08);
    position: relative;
}

.feature-image::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    pointer-events: none;
    z-index: 1;
}

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

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

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

.feature-text .section-title {
    margin-bottom: 20px;
}

.feature-text .section-desc {
    margin-bottom: 28px;
}

.feature-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.feature-list li {
    padding: 8px 0;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
    color: #3A2C24;
    border-bottom: 1px solid rgba(212, 197, 184, 0.15);
}

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

.feature-list li::before {
    content: '✦';
    font-weight: 400;
    color: #FF7F6E;
    font-size: 0.8rem;
}

/* ----- 数据条 (统计数字) ----- */
.stats-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    text-align: center;
}

.stat-item {
    padding: 32px 20px;
    border-radius: 20px;
    background: #fff;
    border: 1px solid rgba(212, 197, 184, 0.2);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.stat-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 20%;
    right: 20%;
    height: 3px;
    background: linear-gradient(90deg, #FF7F6E, #E8C37E);
    border-radius: 3px 3px 0 0;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 36px rgba(44, 31, 24, 0.06);
}

.stat-item:hover::after {
    opacity: 1;
}

.stat-number {
    font-size: 2.8rem;
    font-weight: 800;
    color: #2C1F18;
    line-height: 1.1;
    background: linear-gradient(135deg, #FF7F6E, #E8C37E);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.6;
    margin-top: 8px;
    color: #4A3A32;
    font-weight: 500;
    letter-spacing: 0.03em;
}

/* ----- 内容墙 (图文卡片) ----- */
.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(212, 197, 184, 0.2);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    cursor: pointer;
}

.content-wall-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 48px rgba(44, 31, 24, 0.08);
    border-color: rgba(255, 127, 110, 0.15);
}

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

.content-wall-item:hover img {
    transform: scale(1.03);
}

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

.content-wall-body .meta {
    font-size: 0.75rem;
    color: #9B8A7A;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 8px;
    font-weight: 600;
}

.content-wall-body h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: #2C1F18;
    line-height: 1.4;
}

.content-wall-body p {
    font-size: 0.9rem;
    opacity: 0.65;
    line-height: 1.6;
    color: #4A3A32;
}

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

.faq-item {
    border: 1px solid rgba(212, 197, 184, 0.25);
    border-radius: 16px;
    margin-bottom: 10px;
    overflow: hidden;
    cursor: pointer;
    background: #fff;
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: rgba(255, 127, 110, 0.2);
}

.faq-item .faq-question {
    padding: 20px 24px;
    font-weight: 600;
    font-size: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #2C1F18;
    transition: color 0.3s ease;
    user-select: none;
}

.faq-item .faq-question::after {
    content: '↓';
    font-size: 0.9rem;
    color: #9B8A7A;
    transition: transform 0.3s ease;
    font-weight: 300;
}

.faq-item.open .faq-question::after {
    transform: rotate(180deg);
    color: #FF7F6E;
}

.faq-item.open .faq-question {
    color: #FF7F6E;
}

.faq-item .faq-answer {
    padding: 0 24px 20px;
    display: none;
    opacity: 0.75;
    color: #4A3A32;
    font-size: 0.95rem;
    line-height: 1.7;
}

.faq-item.open .faq-answer {
    display: block;
    animation: fadeSlideIn 0.3s ease;
}

@keyframes fadeSlideIn {
    from {
        opacity: 0;
        transform: translateY(-6px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ----- CTA 横幅 ----- */
.cta-banner {
    padding: 64px 32px;
    text-align: center;
    border-radius: 24px;
    background: linear-gradient(135deg, #FF7F6E, #E8A07C, #E8C37E);
    color: #fff;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(255, 127, 110, 0.25);
}

.cta-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255,255,255,0.15) 0%, transparent 70%);
    border-radius: 50%;
}

.cta-banner::after {
    content: '';
    position: absolute;
    bottom: -40%;
    left: -10%;
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(255,255,255,0.10) 0%, transparent 70%);
    border-radius: 50%;
}

.cta-banner h2 {
    font-size: 2.4rem;
    font-weight: 800;
    color: #fff !important;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}

.cta-banner p {
    font-size: 1.05rem;
    opacity: 0.9;
    max-width: 500px;
    margin: 0 auto 28px;
    color: rgba(255,255,255,0.85);
    position: relative;
    z-index: 1;
}

.cta-banner .btn-primary {
    background: #fff;
    color: #FF7F6E;
    box-shadow: 0 8px 24px rgba(0,0,0,0.10);
    position: relative;
    z-index: 1;
}

.cta-banner .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(0,0,0,0.18);
}

.cta-banner .btn-outline {
    border-color: rgba(255,255,255,0.5);
    color: #fff;
    position: relative;
    z-index: 1;
}

.cta-banner .btn-outline:hover {
    border-color: #fff;
    background: rgba(255,255,255,0.1);
    color: #fff;
}

/* ----- 页脚 ----- */
.site-footer {
    padding: 64px 0 32px;
    background: #2C1F18;
    color: rgba(255, 255, 255, 0.75);
    position: relative;
}

.site-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #FF7F6E, #E8C37E, #6B9B7A);
    opacity: 0.6;
}

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

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.footer-brand .logo {
    color: #fff;
    font-size: 1.1rem;
}

.footer-brand .logo-icon {
    background: linear-gradient(135deg, #FF7F6E, #E8C37E);
}

.footer-brand p {
    font-size: 0.9rem;
    opacity: 0.6;
    line-height: 1.7;
    max-width: 300px;
}

.footer-col h4 {
    font-size: 0.85rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 20px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    opacity: 0.8;
}

.footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-col ul li a {
    color: rgba(255, 255, 255, 0.55);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.footer-col ul li a:hover {
    color: #FF7F6E;
    padding-left: 4px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    margin-top: 48px;
    padding-top: 24px;
    text-align: center;
    font-size: 0.85rem;
    opacity: 0.5;
    color: rgba(255, 255, 255, 0.6);
    letter-spacing: 0.02em;
}

/* ----- 工具类 ----- */
.text-accent {
    color: #FF7F6E;
}

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

.seo-description {
    max-width: 600px;
    margin: 0 auto 48px;
    opacity: 0.7;
    color: #4A3A32;
    font-size: 1.05rem;
    line-height: 1.7;
}

.mt-0 {
    margin-top: 0 !important;
}

.mb-0 {
    margin-bottom: 0 !important;
}

/* ----- 装饰性波浪分隔线 ----- */
.section-divider {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
    margin: 32px 0;
    color: #D4C5B8;
    font-size: 0.8rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.section-divider::before,
.section-divider::after {
    content: '';
    flex: 1;
    max-width: 80px;
    height: 1px;
    background: linear-gradient(90deg, transparent, #D4C5B8, transparent);
}

/* ----- 附加动画 ----- */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.float-element {
    animation: float 4s ease-in-out infinite;
}

/* ----- 响应式设计 ----- */
@media (max-width: 1024px) {
    .hero h1 {
        font-size: 2.8rem;
    }
    .section-title {
        font-size: 2rem;
    }
    .hero .container {
        gap: 40px;
    }
    .stats-bar {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}

@media (max-width: 768px) {
    .hero {
        min-height: auto;
        padding: 100px 0 60px;
    }
    .hero .container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .hero-content {
        max-width: 100%;
        text-align: center;
    }
    .hero p {
        max-width: 100%;
        margin-left: auto;
        margin-right: auto;
    }
    .hero-buttons {
        justify-content: center;
    }
    .hero h1 {
        font-size: 2.4rem;
    }
    .hero-image {
        max-width: 500px;
        margin: 0 auto;
    }
    .feature-block {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    .feature-block.reverse {
        direction: ltr;
    }
    .feature-list {
        align-items: center;
    }
    .feature-list li {
        justify-content: center;
    }
    .section-desc {
        margin-left: auto;
        margin-right: auto;
        text-align: center;
    }
    .section-label {
        text-align: center;
        padding-left: 0;
    }
    .section-label::before {
        display: none;
    }
    .stats-bar {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 28px;
    }
    .footer-brand {
        grid-column: span 2;
    }
    .main-nav {
        display: none;
    }
    .main-nav.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: rgba(253, 247, 243, 0.98);
        backdrop-filter: blur(20px);
        padding: 24px 32px;
        gap: 16px;
        border-bottom: 1px solid rgba(232, 195, 126, 0.2);
        box-shadow: 0 16px 40px rgba(44, 31, 24, 0.08);
    }
    .main-nav.open a {
        font-size: 1rem;
        padding: 8px 0;
    }
    .main-nav.open .nav-cta {
        text-align: center;
        margin-top: 8px;
    }
    .menu-toggle {
        display: flex;
    }
    .section {
        padding: 64px 0;
    }
    .cta-banner {
        padding: 48px 24px;
    }
    .cta-banner h2 {
        font-size: 1.8rem;
    }
}

@media (max-width: 480px) {
    .cards-grid,
    .content-wall,
    .stats-bar {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .footer-brand {
        grid-column: span 1;
    }
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    .hero h1 {
        font-size: 2rem;
    }
    .section-title {
        font-size: 1.6rem;
    }
    .stat-number {
        font-size: 2.2rem;
    }
    .hero {
        padding: 90px 0 40px;
    }
    .section {
        padding: 48px 0;
    }
    .btn {
        width: 100%;
        justify-content: center;
    }
    .nav-cta {
        width: auto !important;
    }
    .content-wall-item img {
        height: 180px;
    }
    .feature-block {
        gap: 28px;
    }
}

/* ----- 打印样式 ----- */
@media print {
    .site-header {
        position: relative;
        border-bottom: 1px solid #ddd;
        background: #fff;
    }
    .hero {
        min-height: auto;
        padding: 40px 0;
    }
    .btn,
    .nav-cta,
    .menu-toggle {
        display: none !important;
    }
    .section {
        padding: 40px 0;
        break-inside: avoid;
    }
    .stats-bar {
        break-inside: avoid;
    }
    .footer-grid {
        break-inside: avoid;
    }
}