/* 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: #fefaf6;
    color: #3a3332;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

.section {
    padding: 80px 0;
}

.section:nth-child(even) {
    background: #f3f5ef;
}

/* 导航 */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(254, 250, 246, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid #e8e0d8;
    transition: box-shadow 0.3s ease;
}

.site-header.scrolled {
    box-shadow: 0 2px 24px rgba(180, 160, 140, 0.12);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.2rem;
    text-decoration: none;
    color: #3a3332;
    letter-spacing: -0.01em;
}

.logo-icon {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    background: linear-gradient(135deg, #d4785c, #e08d73);
    color: #fff;
    font-weight: 800;
    letter-spacing: -0.02em;
    box-shadow: 0 3px 12px rgba(212, 120, 92, 0.25);
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 28px;
    list-style: none;
}

.main-nav a {
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: 0.2s;
    color: #5a4f4d;
    position: relative;
}

.main-nav a:hover {
    color: #d4785c;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: #d4785c;
    border-radius: 1px;
    transition: width 0.25s ease;
}

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

.nav-cta {
    padding: 9px 22px;
    border-radius: 24px;
    color: #fff !important;
    font-weight: 600;
    background: linear-gradient(135deg, #d4785c, #c96b4f);
    box-shadow: 0 3px 14px rgba(212, 120, 92, 0.28);
    transition: all 0.25s ease !important;
}

.nav-cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(212, 120, 92, 0.35);
    color: #fff !important;
}

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

.menu-toggle {
    display: none;
}

/* 首页Hero */
.hero {
    min-height: 70vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -180px;
    right: -120px;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(212, 120, 92, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -100px;
    left: -80px;
    width: 350px;
    height: 350px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(107, 143, 113, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    max-width: 720px;
    position: relative;
    z-index: 1;
}

.hero-eyebrow {
    display: inline-block;
    font-size: 0.82rem;
    font-weight: 600;
    padding: 5px 16px;
    border-radius: 20px;
    margin-bottom: 18px;
    background: #fef0ea;
    color: #d4785c;
    letter-spacing: 0.04em;
}

.hero h1 {
    font-size: 3rem;
    line-height: 1.15;
    margin-bottom: 22px;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: #2d2726;
}

.hero h1 .text-accent {
    color: #d4785c;
    position: relative;
}

.hero h1 .text-accent::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 0;
    width: 100%;
    height: 8px;
    background: rgba(212, 120, 92, 0.18);
    border-radius: 4px;
    z-index: -1;
}

.hero p {
    font-size: 1.1rem;
    opacity: 0.7;
    max-width: 560px;
    margin-bottom: 34px;
    color: #5a4f4d;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 14px;
}

.hero-image {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(180, 160, 140, 0.2);
    border: 1px solid #e8e0d8;
}

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

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 30px;
    border-radius: 26px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    text-decoration: none;
    transition: all 0.25s ease;
    font-size: 0.95rem;
    letter-spacing: 0.01em;
}

.btn-primary {
    color: #fff;
    background: linear-gradient(135deg, #d4785c, #c96b4f);
    box-shadow: 0 4px 16px rgba(212, 120, 92, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(212, 120, 92, 0.38);
}

.btn-outline {
    background: transparent;
    border: 1.5px solid #d4785c;
    color: #d4785c;
}

.btn-outline:hover {
    background: #fef0ea;
    border-color: #c96b4f;
    color: #c96b4f;
    transform: translateY(-2px);
}

/* 标签/标题 */
.section-label {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 3px;
    margin-bottom: 14px;
    color: #6b8f71;
    text-transform: uppercase;
}

.section-title {
    font-size: 2.2rem;
    margin-bottom: 16px;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: #2d2726;
    line-height: 1.2;
}

.section-desc {
    max-width: 600px;
    opacity: 0.7;
    margin-bottom: 44px;
    color: #5a4f4d;
    font-size: 1.05rem;
    line-height: 1.7;
}

/* 卡片网格 */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 24px;
}

.category-card {
    border-radius: 16px;
    padding: 30px;
    border: 1px solid #e8e0d8;
    transition: all 0.3s ease;
    background: #fff;
    position: relative;
    overflow: hidden;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, #d4785c, #e0a98a);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.35s ease;
}

.category-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(180, 160, 140, 0.18);
    border-color: #dcc8b8;
}

.category-card:hover::before {
    transform: scaleX(1);
}

.card-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
    font-size: 1.4rem;
    background: #fef0ea;
    color: #d4785c;
}

.card-link {
    font-weight: 600;
    font-size: 0.88rem;
    text-decoration: none;
    color: #d4785c;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap 0.25s ease;
}

.card-link:hover {
    gap: 10px;
    color: #c96b4f;
}

/* 特性块 */
.feature-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: center;
}

.feature-image {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 16px 40px rgba(180, 160, 140, 0.2);
    border: 1px solid #e8e0d8;
}

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

.feature-text {
    /* 内容 */
}

.feature-list {
    list-style: none;
}

.feature-list li {
    padding: 8px 0;
    display: flex;
    align-items: center;
    gap: 10px;
    color: #3a3332;
    font-size: 0.95rem;
}

.feature-list li::before {
    content: '✓';
    font-weight: 700;
    color: #6b8f71;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: #eef4ec;
    border-radius: 50%;
    font-size: 0.75rem;
    flex-shrink: 0;
}

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

.stat-item {
    padding: 28px 20px;
    border-radius: 16px;
    border: 1px solid #e8e0d8;
    background: #fff;
    transition: all 0.3s ease;
}

.stat-item:hover {
    border-color: #d4785c;
    box-shadow: 0 8px 24px rgba(212, 120, 92, 0.12);
    transform: translateY(-2px);
}

.stat-number {
    font-size: 2.4rem;
    font-weight: 800;
    color: #d4785c;
    letter-spacing: -0.02em;
    line-height: 1;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.6;
    margin-top: 8px;
    color: #5a4f4d;
}

/* 内容墙 */
.content-wall {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.content-wall-item {
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid #e8e0d8;
    transition: all 0.3s ease;
    background: #fff;
}

.content-wall-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(180, 160, 140, 0.18);
    border-color: #dcc8b8;
}

.content-wall-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}

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

.content-wall-body h4 {
    font-size: 1.05rem;
    color: #2d2726;
    margin-bottom: 8px;
    font-weight: 700;
}

.content-wall-body p {
    font-size: 0.9rem;
    color: #5a4f4d;
    opacity: 0.75;
    line-height: 1.6;
}

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

.faq-item {
    border: 1px solid #e8e0d8;
    border-radius: 12px;
    margin-bottom: 10px;
    overflow: hidden;
    cursor: pointer;
    background: #fff;
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: #dcc8b8;
    box-shadow: 0 4px 16px rgba(180, 160, 140, 0.1);
}

.faq-item .faq-question {
    padding: 18px 22px;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #2d2726;
    font-size: 0.95rem;
    user-select: none;
}

.faq-item .faq-question::after {
    content: '+';
    font-size: 1.3rem;
    color: #d4785c;
    font-weight: 400;
    transition: transform 0.3s ease;
    flex-shrink: 0;
    margin-left: 12px;
}

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

.faq-item .faq-answer {
    padding: 0 22px 18px;
    display: none;
    opacity: 0.7;
    color: #5a4f4d;
    font-size: 0.9rem;
    line-height: 1.7;
}

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

@keyframes faqFadeIn {
    from {
        opacity: 0;
        transform: translateY(-6px);
    }
    to {
        opacity: 0.7;
        transform: translateY(0);
    }
}

/* CTA横幅 */
.cta-banner {
    padding: 60px 24px;
    text-align: center;
    border-radius: 20px;
    color: #fff;
    background: linear-gradient(135deg, #d4785c 0%, #c0674d 30%, #b8805a 100%);
    position: relative;
    overflow: hidden;
}

.cta-banner::before {
    content: '';
    position: absolute;
    top: -60px;
    right: -60px;
    width: 220px;
    height: 220px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.06);
    pointer-events: none;
}

.cta-banner::after {
    content: '';
    position: absolute;
    bottom: -40px;
    left: -40px;
    width: 160px;
    height: 160px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    pointer-events: none;
}

.cta-banner h2 {
    color: #fff;
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    position: relative;
    z-index: 1;
}

.cta-banner .btn-primary {
    background: #fff;
    color: #d4785c;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
    position: relative;
    z-index: 1;
}

.cta-banner .btn-primary:hover {
    background: #fefaf6;
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.2);
}

/* 页脚 */
.site-footer {
    padding: 56px 0 28px;
    background: #3d3532;
    color: #d5ccc6;
}

.site-footer .container {
    /*  */
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
}

.footer-brand {
    /*  */
}

.footer-brand .logo {
    color: #fefaf6;
    margin-bottom: 12px;
}

.footer-brand p {
    font-size: 0.9rem;
    opacity: 0.7;
    line-height: 1.7;
    margin-top: 8px;
    color: #c5bab2;
}

.footer-col h4 {
    font-size: 0.9rem;
    font-weight: 700;
    color: #fefaf6;
    margin-bottom: 14px;
    letter-spacing: 0.02em;
}

.footer-col a {
    display: block;
    text-decoration: none;
    color: #c5bab2;
    font-size: 0.85rem;
    padding: 5px 0;
    transition: color 0.2s;
}

.footer-col a:hover {
    color: #e08d73;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    margin-top: 40px;
    padding-top: 20px;
    text-align: center;
    font-size: 0.85rem;
    color: #a8988f;
}

/* 工具类 */
.text-accent {
    color: #d4785c;
}

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

.seo-description {
    max-width: 600px;
    margin: 0 auto 48px;
    opacity: 0.7;
    color: #5a4f4d;
    line-height: 1.7;
}

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

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

/* 响应式 */
@media (max-width: 768px) {
    .feature-block {
        grid-template-columns: 1fr;
        gap: 32px;
    }

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

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

    .main-nav {
        display: none;
    }

    .menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        border-radius: 10px;
        border: 1.5px solid #e8e0d8;
        background: #fff;
        cursor: pointer;
        flex-direction: column;
        gap: 5px;
        padding: 8px;
    }

    .menu-toggle span {
        display: block;
        width: 20px;
        height: 2px;
        background: #3a3332;
        border-radius: 1px;
        transition: all 0.3s ease;
    }

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

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

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

    .main-nav.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 68px;
        left: 0;
        width: 100%;
        background: #fff;
        padding: 24px;
        border-bottom: 1px solid #e8e0d8;
        box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
        gap: 8px;
        z-index: 999;
    }

    .main-nav.open a {
        padding: 10px 16px;
        border-radius: 8px;
        display: block;
        width: 100%;
    }

    .main-nav.open a:hover {
        background: #fefaf6;
    }

    .main-nav.open .nav-cta {
        text-align: center;
        margin-top: 8px;
        border-radius: 24px;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

    .section {
        padding: 56px 0;
    }

    .section-title {
        font-size: 1.7rem;
    }

    .cta-banner h2 {
        font-size: 1.5rem;
    }
}

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

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

    .hero-buttons {
        flex-direction: column;
        gap: 10px;
    }

    .hero h1 {
        font-size: 1.9rem;
    }

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

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

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