/* ============================================================
   蜗牛28 · woniu28r.com.cn
   设计系统：有机现代主义 · 螺旋生长的视觉语言
   配色：暖米白 + 琥珀陶土 + 鼠尾草绿 + 珊瑚点缀
   ============================================================ */

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
    overflow-x: hidden;
    background: #F5F0EB;
    color: #3D3833;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* ----- 滚动条自定义 ----- */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: #F5F0EB;
}
::-webkit-scrollbar-thumb {
    background: #D4A574;
    border-radius: 3px;
}

/* ----- 选中文本 ----- */
::selection {
    background: #D4A574;
    color: #fff;
}

/* ----- 螺旋装饰基类 ----- */
.spiral-decor {
    position: relative;
    overflow: hidden;
}
.spiral-decor::after {
    content: '';
    position: absolute;
    width: 320px;
    height: 320px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, rgba(212, 165, 116, 0.08), transparent 70%);
    top: -120px;
    right: -80px;
    pointer-events: none;
    z-index: 0;
}

/* ----- 核心布局 ----- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 1;
}

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

.section:nth-child(even) {
    background: #F8F4EF;
}

.section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(212, 165, 116, 0.2), transparent);
}

/* ----- 螺旋背景装饰（全局） ----- */
body::before {
    content: '';
    position: fixed;
    top: 20vh;
    right: -10vw;
    width: 50vw;
    height: 50vw;
    border-radius: 50%;
    background: radial-gradient(circle at 40% 40%, rgba(212, 165, 116, 0.04), transparent 60%);
    pointer-events: none;
    z-index: -1;
}

/* ----- 导航 — 固定顶部 ----- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(245, 240, 235, 0.92);
    backdrop-filter: blur(16px) saturate(1.2);
    border-bottom: 1px solid rgba(212, 165, 116, 0.15);
    transition: box-shadow 0.3s;
}

.site-header.scrolled {
    box-shadow: 0 2px 32px rgba(61, 56, 51, 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: 700;
    font-size: 1.25rem;
    text-decoration: none;
    color: #3D3833;
    letter-spacing: -0.01em;
    transition: opacity 0.2s;
}

.logo:hover {
    opacity: 0.8;
}

.logo-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    background: linear-gradient(135deg, #D4A574, #E8A48C);
    color: #fff;
    box-shadow: 0 2px 12px rgba(212, 165, 116, 0.3);
    position: relative;
}

.logo-icon::after {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: 50%;
    border: 1.5px solid rgba(212, 165, 116, 0.2);
    animation: spiralSpin 8s linear infinite;
}

@keyframes spiralSpin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.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: #5A524C;
    transition: color 0.2s, transform 0.2s;
    letter-spacing: 0.02em;
    position: relative;
    padding: 4px 0;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #D4A574, #E8A48C);
    border-radius: 1px;
    transition: width 0.3s ease;
}

.main-nav a:hover {
    color: #D4A574;
}

.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, #D4A574, #E8A48C) !important;
    box-shadow: 0 2px 16px rgba(212, 165, 116, 0.25);
    transition: transform 0.2s, box-shadow 0.2s !important;
    border: none !important;
}

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

.nav-cta:hover {
    transform: translateY(-1px) !important;
    box-shadow: 0 4px 24px rgba(212, 165, 116, 0.35) !important;
}

.menu-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border-radius: 10px;
    border: 1px solid rgba(212, 165, 116, 0.2);
    background: transparent;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
    transition: background 0.2s;
}

.menu-toggle:hover {
    background: rgba(212, 165, 116, 0.08);
}

.menu-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: #5A524C;
    border-radius: 1px;
    transition: 0.3s;
}

/* ----- 首页Hero ----- */
.hero {
    min-height: 80vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 72px;
    background: linear-gradient(165deg, #F5F0EB 0%, #F8F4EF 40%, #F0EBE4 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle at center, rgba(212, 165, 116, 0.06), transparent 70%);
    bottom: -200px;
    left: -150px;
    pointer-events: none;
}

.hero::after {
    content: '🐌';
    position: absolute;
    font-size: 18vw;
    opacity: 0.04;
    bottom: 5%;
    right: 5%;
    transform: rotate(15deg);
    pointer-events: none;
    line-height: 1;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    padding-top: 40px;
    padding-bottom: 40px;
}

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

.hero-eyebrow {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    padding: 6px 18px;
    border-radius: 50px;
    margin-bottom: 20px;
    background: rgba(212, 165, 116, 0.12);
    color: #B8895E;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    border: 1px solid rgba(212, 165, 116, 0.1);
}

.hero h1 {
    font-size: 3.2rem;
    line-height: 1.15;
    margin-bottom: 20px;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: #3D3833;
}

.hero h1 .highlight {
    background: linear-gradient(135deg, #D4A574, #E8A48C);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.1rem;
    color: #7A726A;
    max-width: 520px;
    margin-bottom: 36px;
    line-height: 1.7;
}

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

.hero-image {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 8px 48px rgba(61, 56, 51, 0.06);
    background: #F0EBE4;
    position: relative;
}

.hero-image::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 20px;
    border: 1px solid rgba(212, 165, 116, 0.1);
    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(1.02);
}

/* ----- 按钮系统 ----- */
.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 0.25s ease;
    letter-spacing: 0.02em;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    color: #fff;
    background: linear-gradient(135deg, #D4A574, #E8A48C);
    box-shadow: 0 2px 20px rgba(212, 165, 116, 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 32px rgba(212, 165, 116, 0.35);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-outline {
    background: transparent;
    border: 1.5px solid #D4A574;
    color: #5A524C;
}

.btn-outline:hover {
    background: rgba(212, 165, 116, 0.08);
    border-color: #C8966E;
    transform: translateY(-2px);
}

.btn-outline:active {
    transform: translateY(0);
}

/* ----- 标签/标题系统 ----- */
.section-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    margin-bottom: 12px;
    color: #B8895E;
    text-transform: uppercase;
    padding: 4px 16px;
    border-radius: 50px;
    background: rgba(212, 165, 116, 0.08);
    border: 1px solid rgba(212, 165, 116, 0.06);
}

.section-title {
    font-size: 2.4rem;
    font-weight: 800;
    margin-bottom: 16px;
    color: #3D3833;
    letter-spacing: -0.01em;
    line-height: 1.2;
}

.section-desc {
    max-width: 600px;
    color: #7A726A;
    font-size: 1.05rem;
    margin-bottom: 48px;
    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: 16px;
    padding: 32px 28px;
    border: 1px solid rgba(212, 165, 116, 0.12);
    background: #fff;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #D4A574, #E8A48C, #9CAF88);
    opacity: 0;
    transition: opacity 0.3s;
}

.category-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 32px rgba(61, 56, 51, 0.06);
    border-color: rgba(212, 165, 116, 0.2);
}

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

.card-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 1.4rem;
    background: linear-gradient(135deg, rgba(212, 165, 116, 0.1), rgba(232, 164, 140, 0.1));
    color: #D4A574;
    transition: transform 0.3s;
}

.category-card:hover .card-icon {
    transform: scale(1.05) rotate(-2deg);
}

.card-link {
    font-weight: 600;
    font-size: 0.85rem;
    text-decoration: none;
    color: #D4A574;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 12px;
    transition: gap 0.2s;
}

.card-link:hover {
    gap: 10px;
    color: #C8966E;
}

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

.feature-image {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 32px rgba(61, 56, 51, 0.04);
    background: #F0EBE4;
    position: relative;
}

.feature-image::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 16px;
    border: 1px solid rgba(212, 165, 116, 0.08);
    pointer-events: none;
    z-index: 1;
}

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

.feature-text {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.feature-text .section-title {
    margin-bottom: 4px;
}

.feature-text .section-desc {
    margin-bottom: 16px;
}

.feature-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.feature-list li {
    padding: 10px 0;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
    color: #5A524C;
    border-bottom: 1px solid rgba(212, 165, 116, 0.06);
}

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

.feature-list li::before {
    content: '✓';
    font-weight: 700;
    color: #9CAF88;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: rgba(156, 175, 136, 0.1);
    flex-shrink: 0;
}

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

.stat-item {
    padding: 32px 20px;
    border-radius: 16px;
    border: 1px solid rgba(212, 165, 116, 0.1);
    background: #fff;
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
    overflow: hidden;
}

.stat-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 20%;
    right: 20%;
    height: 2px;
    background: linear-gradient(90deg, transparent, #D4A574, transparent);
    opacity: 0;
    transition: opacity 0.3s;
}

.stat-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 28px rgba(61, 56, 51, 0.04);
}

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

.stat-number {
    font-size: 2.6rem;
    font-weight: 800;
    color: #D4A574;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.stat-number::after {
    content: '+';
    font-size: 1.6rem;
    color: #E8A48C;
    font-weight: 400;
}

.stat-label {
    font-size: 0.9rem;
    color: #7A726A;
    margin-top: 8px;
    font-weight: 500;
}

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

.content-wall-item {
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid rgba(212, 165, 116, 0.08);
    background: #fff;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.content-wall-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 32px rgba(61, 56, 51, 0.06);
    border-color: rgba(212, 165, 116, 0.15);
}

.content-wall-item img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    display: block;
    transition: transform 0.5s ease;
}

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

.content-wall-body {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.content-wall-body h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: #3D3833;
    line-height: 1.3;
}

.content-wall-body p {
    font-size: 0.9rem;
    color: #7A726A;
    line-height: 1.6;
    flex: 1;
}

.content-wall-body .card-link {
    align-self: flex-start;
    margin-top: auto;
}

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

.faq-item {
    border: 1px solid rgba(212, 165, 116, 0.1);
    border-radius: 12px;
    margin-bottom: 10px;
    overflow: hidden;
    cursor: pointer;
    background: #fff;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.faq-item:hover {
    border-color: rgba(212, 165, 116, 0.2);
    box-shadow: 0 2px 16px rgba(61, 56, 51, 0.02);
}

.faq-item .faq-question {
    padding: 18px 24px;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #3D3833;
    font-size: 1rem;
    transition: color 0.2s;
}

.faq-item .faq-question::after {
    content: '↓';
    font-size: 1.2rem;
    color: #D4A574;
    transition: transform 0.3s;
    font-weight: 300;
}

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

.faq-item.open .faq-question {
    color: #D4A574;
}

.faq-item .faq-answer {
    padding: 0 24px 20px;
    display: none;
    color: #7A726A;
    line-height: 1.7;
    font-size: 0.95rem;
}

.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 48px;
    text-align: center;
    border-radius: 20px;
    background: linear-gradient(135deg, #D4A574, #C8966E, #E8A48C);
    color: #fff;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 32px rgba(212, 165, 116, 0.2);
}

.cta-banner::before {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.06);
    top: -100px;
    right: -80px;
    pointer-events: none;
}

.cta-banner::after {
    content: '';
    position: absolute;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.04);
    bottom: -60px;
    left: -40px;
    pointer-events: none;
}

.cta-banner h2 {
    color: #fff;
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 12px;
    position: relative;
}

.cta-banner p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 1.05rem;
    max-width: 500px;
    margin: 0 auto 28px;
    position: relative;
    line-height: 1.6;
}

.cta-banner .btn-primary {
    background: #fff;
    color: #3D3833;
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.06);
}

.cta-banner .btn-primary:hover {
    background: #F8F4EF;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
}

/* ----- 页脚 ----- */
.site-footer {
    padding: 64px 0 32px;
    background: #F0EBE4;
    color: #5A524C;
    position: relative;
}

.site-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(212, 165, 116, 0.15), transparent);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2.2fr 1fr 1fr 1fr;
    gap: 48px;
}

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

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

.footer-brand p {
    font-size: 0.9rem;
    color: #7A726A;
    line-height: 1.7;
    max-width: 320px;
}

.footer-col {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-col h4 {
    font-size: 0.85rem;
    font-weight: 700;
    color: #3D3833;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 4px;
}

.footer-col a {
    text-decoration: none;
    color: #7A726A;
    font-size: 0.9rem;
    transition: color 0.2s, padding-left 0.2s;
    padding: 2px 0;
}

.footer-col a:hover {
    color: #D4A574;
    padding-left: 4px;
}

.footer-bottom {
    border-top: 1px solid rgba(212, 165, 116, 0.12);
    margin-top: 48px;
    padding-top: 24px;
    text-align: center;
    font-size: 0.8rem;
    color: #8A827A;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-bottom-links {
    display: flex;
    gap: 20px;
}

.footer-bottom-links a {
    color: #8A827A;
    text-decoration: none;
    font-size: 0.8rem;
    transition: color 0.2s;
}

.footer-bottom-links a:hover {
    color: #D4A574;
}

/* ----- 工具类 ----- */
.text-accent {
    color: #D4A574;
}

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

.text-center .section-desc {
    margin-left: auto;
    margin-right: auto;
}

.seo-description {
    max-width: 620px;
    margin: 0 auto 48px;
    color: #7A726A;
    line-height: 1.7;
    font-size: 1rem;
}

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

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

/* ----- 额外的装饰螺旋元素 ----- */
.spiral-accents {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    overflow: hidden;
    z-index: 0;
}

.spiral-accents .dot {
    position: absolute;
    border-radius: 50%;
    background: rgba(212, 165, 116, 0.06);
}

.spiral-accents .dot:nth-child(1) {
    width: 180px;
    height: 180px;
    top: 10%;
    left: -5%;
}

.spiral-accents .dot:nth-child(2) {
    width: 240px;
    height: 240px;
    bottom: -8%;
    right: -3%;
    background: rgba(156, 175, 136, 0.04);
}

/* ----- 响应式设计 ----- */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-content {
        max-width: 100%;
    }

    .hero h1 {
        font-size: 2.6rem;
    }

    .hero-image {
        max-width: 600px;
        margin: 0 auto;
    }

    .feature-block {
        gap: 40px;
    }

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

    .footer-grid > :first-child {
        grid-column: 1 / -1;
        max-width: 480px;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 64px 0;
    }

    .hero {
        min-height: auto;
        padding: 100px 0 60px;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 12px;
    }

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

    .feature-block {
        grid-template-columns: 1fr;
        gap: 36px;
    }

    .feature-image {
        order: -1;
    }

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

    .stat-number {
        font-size: 2rem;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 28px;
    }

    .main-nav {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }

    .main-nav.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: rgba(245, 240, 235, 0.98);
        backdrop-filter: blur(16px);
        padding: 24px 28px;
        gap: 6px;
        border-bottom: 1px solid rgba(212, 165, 116, 0.1);
        box-shadow: 0 8px 32px rgba(61, 56, 51, 0.04);
    }

    .main-nav.open a {
        padding: 12px 0;
        font-size: 1rem;
        width: 100%;
    }

    .main-nav.open .nav-cta {
        margin-top: 8px;
        text-align: center;
        padding: 12px 24px !important;
    }

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

    .cta-banner {
        padding: 40px 24px;
    }

    .cta-banner h2 {
        font-size: 1.6rem;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .footer-bottom-links {
        justify-content: center;
    }

    .content-wall {
        grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    }

    .cards-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero h1 {
        font-size: 1.65rem;
    }

    .hero-eyebrow {
        font-size: 0.7rem;
        padding: 4px 14px;
    }

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

    .stats-bar {
        grid-template-columns: 1fr 1fr;
    }

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

    .hero-buttons {
        flex-direction: column;
    }

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

    .section-desc {
        font-size: 0.95rem;
    }

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

    .cta-banner {
        padding: 32px 20px;
        border-radius: 14px;
    }

    .cta-banner h2 {
        font-size: 1.3rem;
    }

    .btn {
        padding: 12px 24px;
        font-size: 0.9rem;
    }
}

/* ----- 细微交互增强 ----- */
@media (hover: hover) {
    .category-card,
    .content-wall-item,
    .stat-item {
        will-change: transform;
    }
}

/* ----- 打印优化 ----- */
@media print {
    .site-header {
        position: relative;
        background: #fff;
        border-bottom: 1px solid #ddd;
    }

    .hero {
        min-height: auto;
        padding: 40px 0;
    }

    .hero-image {
        box-shadow: none;
    }

    .btn {
        box-shadow: none !important;
    }

    .cta-banner {
        background: #D4A574 !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .cta-banner .btn-primary {
        background: #fff !important;
        color: #3D3833 !important;
    }

    .footer-bottom {
        border-top-color: #ddd;
    }
}