*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg: #faf5ee;
    --bg-alt: #f2ece1;
    --card-bg: #fffffc;
    --primary: #e04f3f;
    --primary-dark: #c03828;
    --primary-rgb: 224, 79, 63;
    --secondary: #2d5a55;
    --secondary-rgb: 45, 90, 85;
    --gold: #d4a449;
    --gold-rgb: 212, 164, 73;
    --text: #2d3436;
    --text-light: #7b8285;
    --border: #ece3d7;
    --shadow: 0 2px 24px rgba(45, 52, 54, 0.05);
    --shadow-hover: 0 10px 36px rgba(45, 52, 54, 0.09);
    --radius: 16px;
    --radius-sm: 10px;
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

::selection {
    background: var(--primary);
    color: #fff;
}

::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg);
}
::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

body {
    font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
    overflow-x: hidden;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    letter-spacing: 0.01em;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
}

img {
    display: block;
    max-width: 100%;
}

/* ============ 容器 & 布局 ============ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
}

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

.section:nth-child(even) {
    background: var(--bg-alt);
}

/* ============ 导航 ============ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(250, 245, 238, 0.92);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid transparent;
    transition: box-shadow 0.4s var(--ease), border-color 0.4s var(--ease);
}

.site-header:hover {
    border-color: var(--border);
    box-shadow: 0 4px 24px rgba(45, 52, 54, 0.04);
}

.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: 1.25rem;
    text-decoration: none;
    color: var(--text);
    letter-spacing: -0.02em;
    position: relative;
}

.logo-icon {
    width: 38px;
    height: 38px;
    border-radius: 50% 50% 50% 6px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    color: #fff;
    font-weight: 700;
    box-shadow: 0 2px 12px rgba(224, 79, 63, 0.3);
}

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

.main-nav li {
    position: relative;
}

.main-nav a {
    text-decoration: none;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text);
    transition: color 0.3s var(--ease);
    letter-spacing: 0.02em;
    padding: 4px 2px;
    position: relative;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
    transition: width 0.35s var(--ease);
}

.main-nav a:hover {
    color: var(--primary);
}
.main-nav a:hover::after {
    width: 100%;
}

.main-nav .nav-cta {
    padding: 9px 24px;
    border-radius: 100px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--gold) 130%);
    color: #fff !important;
    font-weight: 600;
    box-shadow: 0 4px 16px rgba(224, 79, 63, 0.25);
    transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.main-nav .nav-cta::after {
    display: none;
}
.main-nav .nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(224, 79, 63, 0.35);
}

.menu-toggle {
    display: none;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: transparent;
    cursor: pointer;
    position: relative;
    transition: border-color 0.3s var(--ease);
}

.menu-toggle::before,
.menu-toggle::after {
    content: '';
    position: absolute;
    left: 11px;
    right: 11px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: transform 0.3s var(--ease), top 0.3s var(--ease), bottom 0.3s var(--ease), background 0.3s var(--ease);
}

.menu-toggle::before {
    top: 14px;
    box-shadow: 0 6px 0 var(--text);
}
.menu-toggle::after {
    bottom: 14px;
}

.menu-toggle:hover {
    border-color: var(--primary);
}
.menu-toggle:hover::before,
.menu-toggle:hover::after {
    background: var(--primary);
}
.menu-toggle:hover::before {
    box-shadow: 0 6px 0 var(--primary);
}

/* ============ Hero ============ */
.hero {
    min-height: 70vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: 120px 0 80px;
    background:
        radial-gradient(circle at 82% 28%, rgba(224, 79, 63, 0.08) 0%, transparent 55%),
        radial-gradient(circle at 60% 75%, rgba(212, 164, 73, 0.09) 0%, transparent 45%),
        linear-gradient(180deg, var(--bg) 0%, #fdfaf5 100%);
}

.hero::before {
    content: '';
    position: absolute;
    width: 460px;
    height: 460px;
    border: 1px dashed rgba(45, 90, 85, 0.14);
    border-radius: 50%;
    right: 3%;
    top: 12%;
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    width: 320px;
    height: 320px;
    border: 1px solid rgba(224, 79, 63, 0.22);
    border-radius: 50%;
    right: calc(3% + 70px);
    top: calc(12% + 70px);
    pointer-events: none;
}

.hero .container {
    display: flex;
    align-items: center;
    gap: 64px;
    width: 100%;
}

.hero-content {
    flex: 1 1 52%;
    max-width: 620px;
    position: relative;
    z-index: 2;
}

.hero-eyebrow {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    padding: 6px 18px 6px 28px;
    border-radius: 100px;
    background: linear-gradient(135deg, rgba(224, 79, 63, 0.08), rgba(212, 164, 73, 0.12));
    color: var(--primary);
    margin-bottom: 20px;
    letter-spacing: 0.04em;
    position: relative;
}

.hero-eyebrow::before {
    content: '';
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--primary);
}

.hero h1 {
    font-size: clamp(2rem, 4.5vw, 3.4rem);
    line-height: 1.15;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--text);
    margin-bottom: 22px;
    position: relative;
}

.hero h1::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 52px;
    height: 4px;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--primary), var(--gold));
}

.hero p {
    font-size: 1.06rem;
    color: var(--text-light);
    max-width: 500px;
    margin-bottom: 36px;
    line-height: 1.75;
}

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

.hero-image {
    flex: 1 1 42%;
    border-radius: var(--radius);
    overflow: hidden;
    position: relative;
    z-index: 2;
    box-shadow: var(--shadow-hover);
    outline: 1px solid rgba(255,255,255,0.6);
    outline-offset: -1px;
    aspect-ratio: 4/3;
    transform: rotate(1.5deg);
    transition: transform 0.5s var(--ease), box-shadow 0.5s var(--ease);
}

.hero-image:hover {
    transform: rotate(0deg) scale(1.015);
    box-shadow: 0 14px 44px rgba(45, 52, 54, 0.14);
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ============ 按钮 ============ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 30px;
    border-radius: 100px;
    font-weight: 600;
    font-size: 0.92rem;
    cursor: pointer;
    border: none;
    text-decoration: none;
    transition: all 0.35s var(--ease);
    letter-spacing: 0.02em;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
    box-shadow: 0 4px 20px rgba(224, 79, 63, 0.28);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(224, 79, 63, 0.36);
}

.btn-outline {
    background: transparent;
    border: 1.5px solid var(--secondary);
    color: var(--secondary);
}

.btn-outline:hover {
    background: var(--secondary);
    color: #fff;
    transform: translateY(-2px);
}

/* ============ 标签 / 标题 ============ */
.section-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--primary);
    margin-bottom: 14px;
    background: rgba(224, 79, 63, 0.06);
    padding: 5px 16px;
    border-radius: 100px;
}

.section-label::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--primary);
    display: inline-block;
}

.section-title {
    font-size: clamp(1.6rem, 3vw, 2.3rem);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--text);
    margin-bottom: 16px;
    position: relative;
}

.section-desc {
    max-width: 620px;
    color: var(--text-light);
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 44px;
}

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

.category-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 30px 28px;
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
    transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease), border-color 0.4s var(--ease);
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), transparent);
    opacity: 0;
    transition: opacity 0.4s var(--ease);
}

.category-card::after {
    content: '';
    position: absolute;
    top: 18px;
    right: 18px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--border);
    transition: background 0.3s var(--ease), transform 0.3s var(--ease);
}

.category-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: transparent;
}

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

.category-card:hover::after {
    background: var(--primary);
    transform: scale(1.3);
}

.card-icon {
    width: 52px;
    height: 52px;
    border-radius: 50% 50% 50% 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 1.4rem;
    background: linear-gradient(135deg, rgba(224, 79, 63, 0.1), rgba(212, 164, 73, 0.1));
    transition: transform 0.4s var(--ease);
}

.category-card:hover .card-icon {
    transform: scale(1.08) rotate(-4deg);
}

.category-card:nth-child(2n) .card-icon {
    background: linear-gradient(135deg, rgba(45, 90, 85, 0.1), rgba(212, 164, 73, 0.1));
}

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

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

.card-link::after {
    content: '→';
    font-size: 1rem;
}

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

.feature-image {
    border-radius: var(--radius);
    overflow: hidden;
    position: relative;
    box-shadow: var(--shadow);
    outline: 1px solid rgba(255,255,255,0.5);
    aspect-ratio: 4/3;
}

.feature-image::after {
    content: '';
    position: absolute;
    top: 16px;
    left: 16px;
    width: 100%;
    height: 100%;
    border: 2px solid var(--gold);
    border-radius: var(--radius);
    opacity: 0.35;
    pointer-events: none;
    z-index: -1;
}

.feature-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.feature-text {
    position: relative;
}

.feature-text .section-title {
    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-size: 0.98rem;
    color: var(--text);
    border-bottom: 1px solid rgba(45, 52, 54, 0.04);
    transition: padding-left 0.3s var(--ease);
}

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

.feature-list li:hover {
    padding-left: 8px;
}

.feature-list li::before {
    content: '✓';
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--primary);
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: rgba(224, 79, 63, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

/* ============ 数据条 ============ */
.stats-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    text-align: center;
}

.stat-item {
    padding: 36px 20px;
    border-radius: var(--radius);
    background: var(--card-bg);
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
    transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
}

.stat-item::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 32px;
    height: 2px;
    background: var(--primary);
    border-radius: 1px;
    transition: width 0.4s var(--ease);
}

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

.stat-item:hover::before {
    width: 60px;
}

.stat-number {
    font-size: 2.6rem;
    font-weight: 800;
    color: var(--text);
    line-height: 1.1;
    background: linear-gradient(135deg, var(--primary) 0%, var(--gold) 120%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-top: 8px;
    letter-spacing: 0.02em;
}

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

.content-wall-item {
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--card-bg);
    border: 1px solid var(--border);
    transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
}

.content-wall-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.content-wall-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.5s var(--ease);
}

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

.content-wall-body {
    padding: 22px 24px;
}

.content-wall-body h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 6px;
}

.content-wall-body p {
    font-size: 0.88rem;
    color: var(--text-light);
    line-height: 1.6;
}

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

.faq-item {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 14px;
    margin-bottom: 10px;
    overflow: hidden;
    cursor: pointer;
    transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.faq-item:hover {
    border-color: rgba(224, 79, 63, 0.25);
}

.faq-item.open {
    border-color: rgba(224, 79, 63, 0.4);
    box-shadow: var(--shadow);
}

.faq-item .faq-question {
    padding: 20px 24px;
    font-weight: 600;
    font-size: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.faq-item .faq-question::after {
    content: '＋';
    font-size: 1.2rem;
    color: var(--primary);
    transition: transform 0.4s var(--ease);
    flex-shrink: 0;
}

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

.faq-item .faq-answer {
    padding: 0 24px 20px;
    display: none;
    color: var(--text-light);
    font-size: 0.92rem;
    line-height: 1.7;
}

.faq-item.open .faq-answer {
    display: block;
    animation: fadeIn 0.35s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ============ CTA横幅 ============ */
.cta-banner {
    padding: 64px 48px;
    text-align: center;
    border-radius: 20px;
    background: linear-gradient(120deg, var(--primary) 0%, #e0674a 45%, var(--gold) 100%);
    color: #fff;
    position: relative;
    overflow: hidden;
    box-shadow: 0 12px 48px rgba(224, 79, 63, 0.2);
}

.cta-banner::before {
    content: '';
    position: absolute;
    width: 220px;
    height: 220px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    top: -70px;
    right: -50px;
}

.cta-banner::after {
    content: '';
    position: absolute;
    width: 140px;
    height: 140px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.15);
    bottom: -40px;
    left: 30px;
}

.cta-banner h2 {
    color: #fff;
    font-size: 2.1rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}

.cta-banner p {
    color: rgba(255, 255, 255, 0.85);
    max-width: 480px;
    margin: 0 auto 28px;
    position: relative;
    z-index: 1;
}

.cta-banner .btn {
    position: relative;
    z-index: 1;
}

.cta-banner .btn-primary {
    background: #fff;
    color: var(--primary);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.cta-banner .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.15);
}

/* ============ 页脚 ============ */
.site-footer {
    background: var(--bg-alt);
    padding: 60px 0 24px;
    border-top: 2px solid rgba(224, 79, 63, 0.15);
}

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

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

.footer-brand p {
    color: var(--text-light);
    font-size: 0.9rem;
    line-height: 1.7;
    max-width: 260px;
}

.footer-col h4 {
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text);
    margin-bottom: 16px;
}

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

.footer-col ul li {
    padding: 5px 0;
}

.footer-col ul a {
    color: var(--text-light);
    text-decoration: none;
    font-size: 0.88rem;
    transition: color 0.3s var(--ease), padding-left 0.3s var(--ease);
}

.footer-col ul a:hover {
    color: var(--primary);
    padding-left: 6px;
}

.footer-bottom {
    border-top: 1px solid rgba(45, 52, 54, 0.06);
    margin-top: 48px;
    padding-top: 20px;
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-light);
}

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

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

.seo-description {
    max-width: 600px;
    margin: 0 auto 50px;
    color: var(--text-light);
    text-align: center;
    line-height: 1.8;
}

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

/* ============ 响应式 ============ */
@media (max-width: 768px) {
    .feature-block {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

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

    .main-nav {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: rgba(250, 245, 238, 0.98);
        backdrop-filter: blur(14px);
        padding: 24px;
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
        border-bottom: 1px solid var(--border);
        box-shadow: 0 12px 32px rgba(45, 52, 54, 0.08);
    }

    .main-nav.open {
        display: flex;
        animation: fadeInNav 0.35s ease;
    }

    .main-nav li {
        width: 100%;
    }

    .main-nav a {
        display: block;
        padding: 10px 4px;
        font-size: 1rem;
    }

    .main-nav .nav-cta {
        display: inline-block;
        margin-top: 8px;
        padding: 10px 24px;
    }

    @keyframes fadeInNav {
        from { opacity: 0; transform: translateY(-10px); }
        to { opacity: 1; transform: translateY(0); }
    }

    .menu-toggle {
        display: block;
    }

    .hero {
        padding: 96px 0 56px;
    }

    .hero .container {
        flex-direction: column;
        gap: 40px;
    }

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

    .hero-image {
        width: 100%;
        transform: rotate(0deg);
    }

    .hero-image:hover {
        transform: scale(1.01);
    }

    .section {
        padding: 64px 0;
    }

    .cta-banner {
        padding: 48px 24px;
    }

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

@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;
    }

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

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

    .header-inner {
        padding: 0 16px;
    }

    .container {
        padding: 0 16px;
    }

    .hero-eyebrow {
        font-size: 0.75rem;
    }

    .cta-banner {
        padding: 40px 20px;
    }

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

    .stat-item {
        padding: 28px 16px;
    }
}