/* ============================================
   QiangZhuangNiuNiu - 抢庄牛牛设计系统
   风格：东方雅奢 · 牛气冲天
   色彩体系：米白暖金 + 朱砂红 + 檀木褐
   ============================================ */

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

body {
    font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
    overflow-x: hidden;
    background: #FFF8F0;
    color: #3D2B1F;
    line-height: 1.6;
}

/* ============================================
   自定义属性 — 独特色彩体系
   ============================================ */
:root {
    --cream: #FFF8F0;
    --cream-dark: #F5EDE0;
    --gold: #D4A853;
    --gold-light: #E8C97A;
    --gold-dark: #B8923E;
    --cinnabar: #D4352F;
    --cinnabar-dark: #B82D28;
    --cinnabar-light: #E85A4A;
    --brown: #5C3D2E;
    --brown-light: #7A5A4A;
    --brown-pale: #A0806A;
    --ivory: #FAF5EE;
    --gold-gradient: linear-gradient(135deg, #D4A853 0%, #E8C97A 40%, #D4A853 100%);
    --red-gradient: linear-gradient(135deg, #D4352F 0%, #E85A4A 100%);
    --shadow-gold: 0 8px 32px rgba(212, 168, 83, 0.25);
    --shadow-soft: 0 4px 20px rgba(92, 61, 46, 0.08);
    --border-gold: 1px solid rgba(212, 168, 83, 0.3);
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
}

/* ============================================
   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: var(--ivory);
}

/* 装饰性背景图案 — 暗纹牛角 */
.section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='80' height='80' viewBox='0 0 80 80' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M20 20 C30 10, 50 10, 60 20 C65 25, 65 35, 60 40 C55 45, 45 50, 40 55 C35 50, 25 45, 20 40 C15 35, 15 25, 20 20Z' fill='none' stroke='%23D4A853' stroke-width='0.5' opacity='0.06'/%3E%3C/svg%3E");
    background-size: 120px 120px;
    pointer-events: none;
    z-index: 0;
}

.section > * {
    position: relative;
    z-index: 1;
}

/* ============================================
   导航 — 金色琉璃质感
   ============================================ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 248, 240, 0.92);
    backdrop-filter: blur(20px) saturate(1.2);
    border-bottom: 1px solid rgba(212, 168, 83, 0.2);
    transition: all 0.3s ease;
}

.site-header:hover {
    border-bottom-color: rgba(212, 168, 83, 0.4);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 76px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 800;
    font-size: 1.4rem;
    text-decoration: none;
    color: var(--brown);
    letter-spacing: 1px;
    position: relative;
}

.logo-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    background: var(--gold-gradient);
    color: #fff;
    box-shadow: 0 4px 16px rgba(212, 168, 83, 0.4);
    transform: rotate(-3deg);
    transition: transform 0.3s ease;
}

.logo:hover .logo-icon {
    transform: rotate(0deg) scale(1.05);
}

.logo::after {
    content: '牛气冲天';
    position: absolute;
    bottom: -12px;
    right: -8px;
    font-size: 0.55rem;
    font-weight: 700;
    color: var(--cinnabar);
    letter-spacing: 2px;
    background: rgba(212, 53, 47, 0.08);
    padding: 2px 8px;
    border-radius: 4px;
}

.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: var(--brown-light);
    transition: all 0.3s ease;
    position: relative;
    padding: 4px 0;
    letter-spacing: 0.5px;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gold-gradient);
    transition: width 0.3s ease;
    border-radius: 2px;
}

.main-nav a:hover {
    color: var(--brown);
}

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

.nav-cta {
    padding: 10px 24px !important;
    border-radius: 50px !important;
    background: var(--red-gradient) !important;
    color: #fff !important;
    font-weight: 700 !important;
    box-shadow: 0 4px 16px rgba(212, 53, 47, 0.3);
    transition: all 0.3s ease !important;
    letter-spacing: 0.5px;
}

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

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(212, 53, 47, 0.4) !important;
    color: #fff !important;
}

.menu-toggle {
    display: none;
    width: 40px;
    height: 40px;
    border: none;
    background: var(--cream-dark);
    border-radius: 10px;
    cursor: pointer;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    transition: background 0.3s;
}

.menu-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--brown);
    border-radius: 2px;
    transition: 0.3s;
}

.menu-toggle:hover {
    background: var(--gold-light);
}

/* ============================================
   Hero — 牛气冲天
   ============================================ */
.hero {
    min-height: 85vh;
    display: flex;
    align-items: center;
    padding-top: 76px;
    background: linear-gradient(165deg, #FFF8F0 0%, #F5EDE0 50%, #FFF8F0 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(212, 168, 83, 0.12) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero::after {
    content: '🐂';
    position: absolute;
    bottom: 10%;
    right: 8%;
    font-size: 12rem;
    opacity: 0.06;
    transform: rotate(15deg);
    pointer-events: none;
}

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

.hero-content {
    position: relative;
}

.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    font-weight: 700;
    padding: 6px 18px;
    border-radius: 50px;
    margin-bottom: 20px;
    background: rgba(212, 168, 83, 0.12);
    color: var(--gold-dark);
    letter-spacing: 2px;
    text-transform: uppercase;
    border: 1px solid rgba(212, 168, 83, 0.2);
}

.hero-eyebrow::before {
    content: '✦';
    font-size: 0.7rem;
}

.hero h1 {
    font-size: 3.6rem;
    line-height: 1.15;
    margin-bottom: 20px;
    font-weight: 900;
    color: var(--brown);
    letter-spacing: -1px;
}

.hero h1 .highlight {
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.hero h1 .highlight-red {
    color: var(--cinnabar);
    -webkit-text-fill-color: var(--cinnabar);
    position: relative;
}

.hero h1 .highlight-red::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 0;
    right: 0;
    height: 6px;
    background: rgba(212, 53, 47, 0.15);
    border-radius: 4px;
}

.hero p {
    font-size: 1.15rem;
    color: var(--brown-pale);
    max-width: 520px;
    margin-bottom: 36px;
    line-height: 1.7;
}

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

.hero-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-gold);
    position: relative;
    transform: perspective(1000px) rotateY(-3deg);
    transition: transform 0.6s ease;
    border: 2px solid rgba(212, 168, 83, 0.15);
}

.hero-image:hover {
    transform: perspective(1000px) rotateY(0deg);
}

.hero-image img {
    width: 100%;
    height: auto;
    display: block;
}

.hero-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(212, 168, 83, 0.1), transparent 50%);
    pointer-events: none;
}

/* ============================================
   按钮系统 — 金玉满堂
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 700;
    cursor: pointer;
    border: none;
    text-decoration: none;
    transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    font-size: 0.95rem;
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--red-gradient);
    color: #fff;
    box-shadow: 0 4px 20px rgba(212, 53, 47, 0.3);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
    transition: left 0.6s ease;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(212, 53, 47, 0.4);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--gold);
    color: var(--gold-dark);
}

.btn-outline:hover {
    background: var(--gold);
    color: #fff;
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(212, 168, 83, 0.3);
}

.btn-gold {
    background: var(--gold-gradient);
    color: #fff;
    box-shadow: 0 4px 20px rgba(212, 168, 83, 0.35);
}

.btn-gold:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(212, 168, 83, 0.45);
}

/* ============================================
   标签/标题 — 东方韵味
   ============================================ */
.section-label {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 3px;
    margin-bottom: 16px;
    color: var(--gold-dark);
    text-transform: uppercase;
}

.section-label::before {
    content: '';
    display: inline-block;
    width: 24px;
    height: 2px;
    background: var(--gold);
    border-radius: 2px;
}

.section-label::after {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    background: var(--cinnabar);
    border-radius: 50%;
}

.section-title {
    font-size: 2.6rem;
    font-weight: 900;
    margin-bottom: 16px;
    color: var(--brown);
    letter-spacing: -0.5px;
    line-height: 1.2;
}

.section-desc {
    max-width: 640px;
    color: var(--brown-pale);
    margin-bottom: 48px;
    font-size: 1.05rem;
    line-height: 1.7;
}

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

.category-card {
    border-radius: var(--radius-md);
    padding: 36px 32px 32px;
    background: #fff;
    border: var(--border-gold);
    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: var(--gold-gradient);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.category-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-gold);
    border-color: var(--gold);
}

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

.card-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 1.6rem;
    background: linear-gradient(135deg, rgba(212, 168, 83, 0.12), rgba(212, 168, 83, 0.04));
    border: 1px solid rgba(212, 168, 83, 0.15);
    transition: all 0.3s ease;
}

.category-card:hover .card-icon {
    background: var(--gold-gradient);
    color: #fff;
    transform: scale(1.05);
}

.category-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--brown);
}

.category-card p {
    font-size: 0.9rem;
    color: var(--brown-pale);
    margin-bottom: 20px;
    line-height: 1.6;
}

.card-link {
    font-weight: 700;
    font-size: 0.85rem;
    text-decoration: none;
    color: var(--gold-dark);
    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: 12px;
    color: var(--cinnabar);
}

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

/* ============================================
   特性块 — 左右交错
   ============================================ */
.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: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    border: 2px solid rgba(212, 168, 83, 0.1);
    transition: box-shadow 0.4s ease;
}

.feature-image:hover {
    box-shadow: var(--shadow-gold);
}

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

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

.feature-text h3 {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--brown);
}

.feature-text p {
    color: var(--brown-pale);
    line-height: 1.7;
    margin-bottom: 20px;
}

.feature-list {
    list-style: none;
    margin-top: 24px;
}

.feature-list li {
    padding: 10px 0;
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 500;
    color: var(--brown-light);
    border-bottom: 1px solid rgba(212, 168, 83, 0.08);
}

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

.feature-list li::before {
    content: '✦';
    font-weight: 700;
    color: var(--gold);
    font-size: 0.8rem;
}

/* ============================================
   数据条 — 牛气指数
   ============================================ */
.stats-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
    text-align: center;
}

.stat-item {
    padding: 32px 20px;
    border-radius: var(--radius-md);
    background: #fff;
    border: var(--border-gold);
    transition: all 0.4s ease;
    position: relative;
}

.stat-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-gold);
    border-color: var(--gold);
}

.stat-item::after {
    content: '🐂';
    position: absolute;
    top: -10px;
    right: -10px;
    font-size: 1.2rem;
    opacity: 0;
    transform: scale(0);
    transition: all 0.4s ease;
}

.stat-item:hover::after {
    opacity: 1;
    transform: scale(1) rotate(15deg);
}

.stat-number {
    font-size: 2.8rem;
    font-weight: 900;
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--brown-pale);
    margin-top: 8px;
    font-weight: 500;
    letter-spacing: 1px;
}

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

.content-wall-item {
    border-radius: var(--radius-md);
    overflow: hidden;
    background: #fff;
    border: var(--border-gold);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.content-wall-item:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-gold);
    border-color: var(--gold);
}

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

.content-wall-item:hover img {
    transform: scale(1.05);
}

.content-wall-body {
    padding: 24px 24px 28px;
}

.content-wall-body .tag {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--cinnabar);
    background: rgba(212, 53, 47, 0.06);
    padding: 4px 12px;
    border-radius: 4px;
    margin-bottom: 10px;
    letter-spacing: 1px;
}

.content-wall-body h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--brown);
    line-height: 1.4;
}

.content-wall-body p {
    font-size: 0.85rem;
    color: var(--brown-pale);
    line-height: 1.6;
    margin-bottom: 16px;
}

.content-wall-body .date {
    font-size: 0.75rem;
    color: var(--brown-pale);
    opacity: 0.6;
    display: flex;
    align-items: center;
    gap: 6px;
}

/* ============================================
   FAQ — 折叠面板
   ============================================ */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border: var(--border-gold);
    border-radius: var(--radius-sm);
    margin-bottom: 10px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s ease;
    background: #fff;
}

.faq-item:hover {
    border-color: var(--gold-light);
    box-shadow: 0 2px 12px rgba(212, 168, 83, 0.1);
}

.faq-item .faq-question {
    padding: 20px 24px;
    font-weight: 700;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--brown);
    transition: color 0.3s ease;
    font-size: 1rem;
}

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

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

.faq-item.open .faq-question {
    color: var(--cinnabar);
}

.faq-item .faq-answer {
    padding: 0 24px 20px;
    display: none;
    color: var(--brown-pale);
    line-height: 1.7;
    font-size: 0.95rem;
}

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

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   CTA横幅 — 红金风暴
   ============================================ */
.cta-banner {
    padding: 72px 48px;
    text-align: center;
    border-radius: var(--radius-xl);
    background: linear-gradient(135deg, var(--cinnabar) 0%, #B82D28 100%);
    color: #fff;
    position: relative;
    overflow: hidden;
    box-shadow: 0 12px 48px rgba(212, 53, 47, 0.3);
}

.cta-banner::before {
    content: '🐂';
    position: absolute;
    top: -20px;
    right: 40px;
    font-size: 8rem;
    opacity: 0.08;
    transform: rotate(20deg);
}

.cta-banner::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 50%, rgba(255,255,255,0.05) 0%, transparent 60%);
    pointer-events: none;
}

.cta-banner h2 {
    font-size: 2.4rem;
    font-weight: 900;
    color: #fff;
    margin-bottom: 12px;
    position: relative;
}

.cta-banner p {
    font-size: 1.05rem;
    opacity: 0.85;
    max-width: 500px;
    margin: 0 auto 32px;
    line-height: 1.6;
    position: relative;
}

.cta-banner .btn-primary {
    background: #fff;
    color: var(--cinnabar);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.15);
}

.cta-banner .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    background: #fff;
    color: var(--cinnabar-dark);
}

/* ============================================
   页脚 — 檀木底色
   ============================================ */
.site-footer {
    padding: 64px 0 32px;
    background: var(--brown);
    color: rgba(255, 248, 240, 0.85);
}

.site-footer .container {
    position: relative;
}

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

.footer-brand h3 {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--gold-light);
    margin-bottom: 12px;
}

.footer-brand p {
    font-size: 0.9rem;
    opacity: 0.6;
    line-height: 1.7;
    max-width: 320px;
}

.footer-col h4 {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--gold-light);
    margin-bottom: 16px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

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

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

.footer-col ul li a {
    color: rgba(255, 248, 240, 0.6);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.footer-col ul li a:hover {
    color: var(--gold-light);
    transform: translateX(4px);
}

.footer-bottom {
    border-top: 1px solid rgba(212, 168, 83, 0.15);
    margin-top: 48px;
    padding-top: 24px;
    text-align: center;
    font-size: 0.85rem;
    opacity: 0.5;
    letter-spacing: 0.5px;
}

/* ============================================
   工具类
   ============================================ */
.text-accent {
    color: var(--cinnabar);
}

.text-gold {
    color: var(--gold);
}

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

.seo-description {
    max-width: 640px;
    margin: 0 auto 48px;
    color: var(--brown-pale);
    line-height: 1.7;
}

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

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

/* ============================================
   装饰性分割线
   ============================================ */
.divider {
    width: 60px;
    height: 3px;
    background: var(--gold-gradient);
    border-radius: 4px;
    margin: 24px 0 32px;
}

.divider-center {
    margin-left: auto;
    margin-right: auto;
}

/* ============================================
   牛角装饰元素
   ============================================ */
.horn-decoration {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gold-dark);
}

.horn-decoration::before,
.horn-decoration::after {
    content: '🐂';
    font-size: 1rem;
    opacity: 0.5;
}

/* ============================================
   响应式设计
   ============================================ */
@media (max-width: 1024px) {
    .hero h1 {
        font-size: 2.8rem;
    }

    .section-title {
        font-size: 2.2rem;
    }

    .hero .container {
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .hero {
        min-height: auto;
        padding: 120px 0 60px;
    }

    .hero .container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero h1 {
        font-size: 2.4rem;
    }

    .hero-image {
        transform: none;
        max-width: 500px;
        margin: 0 auto;
    }

    .hero-image:hover {
        transform: none;
    }

    .hero::after {
        display: none;
    }

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

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

    .stats-bar {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .stat-item {
        padding: 24px 16px;
    }

    .stat-number {
        font-size: 2.2rem;
    }

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

    .main-nav {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }

    .main-nav.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 76px;
        left: 0;
        width: 100%;
        background: rgba(255, 248, 240, 0.98);
        backdrop-filter: blur(20px);
        padding: 24px 32px;
        gap: 16px;
        border-bottom: 1px solid rgba(212, 168, 83, 0.2);
        box-shadow: 0 16px 48px rgba(0, 0, 0, 0.06);
    }

    .main-nav.open a {
        font-size: 1rem;
        padding: 8px 0;
    }

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

    .section {
        padding: 64px 0;
    }

    .section-title {
        font-size: 1.8rem;
    }

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

    .content-wall {
        grid-template-columns: 1fr;
    }

    .cta-banner {
        padding: 48px 24px;
        border-radius: var(--radius-md);
    }

    .cta-banner h2 {
        font-size: 1.8rem;
    }

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

    .btn {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .header-inner {
        height: 64px;
        padding: 0 16px;
    }

    .logo {
        font-size: 1.1rem;
    }

    .logo-icon {
        width: 36px;
        height: 36px;
        font-size: 1.2rem;
    }

    .logo::after {
        font-size: 0.45rem;
        bottom: -10px;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .hero p {
        font-size: 0.95rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .section-desc {
        font-size: 0.9rem;
        margin-bottom: 32px;
    }

    .cards-grid,
    .content-wall,
    .stats-bar {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .stat-number {
        font-size: 1.8rem;
    }

    .cta-banner h2 {
        font-size: 1.4rem;
    }

    .cta-banner p {
        font-size: 0.9rem;
    }

    .feature-text h3 {
        font-size: 1.4rem;
    }

    .faq-item .faq-question {
        font-size: 0.9rem;
        padding: 16px 18px;
    }

    .faq-item .faq-answer {
        font-size: 0.85rem;
        padding: 0 18px 16px;
    }

    .category-card {
        padding: 24px 20px;
    }

    .content-wall-body {
        padding: 18px 18px 22px;
    }
}

/* ============================================
   滚动条美化
   ============================================ */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--cream);
}

::-webkit-scrollbar-thumb {
    background: var(--gold);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gold-dark);
}

/* ============================================
   选中文本颜色
   ============================================ */
::selection {
    background: rgba(212, 168, 83, 0.25);
    color: var(--brown);
}