*, *::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: #FFF9F0;
    color: #2D2A2B;
    line-height: 1.6;
}

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

.section {
    padding: 100px 0;
    position: relative;
}

.section:nth-child(even) {
    background: #FEF3E2;
}

/* 装饰性圆点背景 */
.section::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at 20% 50%, rgba(255,107,53,0.06) 0%, transparent 50%),
                      radial-gradient(circle at 80% 20%, rgba(46,196,182,0.06) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

/* ===== 导航 ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255,249,240,0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 2px solid rgba(255,107,53,0.12);
    box-shadow: 0 1px 12px rgba(0,0,0,0.03);
}

.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: 1.3rem;
    text-decoration: none;
    color: #2D2A2B;
    letter-spacing: -0.5px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #FF6B35, #FF8F65);
    color: #fff;
    font-size: 1.2rem;
    font-weight: 700;
    box-shadow: 0 4px 8px rgba(255,107,53,0.25);
}

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

.main-nav a {
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 600;
    color: #2D2A2B;
    transition: 0.25s ease;
    position: relative;
    padding: 4px 0;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: #FF6B35;
    transition: width 0.3s ease;
}

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

.main-nav a:hover {
    color: #FF6B35;
}

.nav-cta {
    padding: 10px 24px !important;
    border-radius: 50px !important;
    background: linear-gradient(135deg, #FF6B35, #FF8F65) !important;
    color: #fff !important;
    font-weight: 700 !important;
    box-shadow: 0 4px 12px rgba(255,107,53,0.3);
    transition: all 0.3s ease !important;
}

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

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255,107,53,0.4);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #2D2A2B;
    padding: 8px;
}

/* ===== 首页Hero ===== */
.hero {
    min-height: 80vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 72px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -20%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255,107,53,0.08) 0%, transparent 70%);
    z-index: 0;
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -10%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(46,196,182,0.07) 0%, transparent 70%);
    z-index: 0;
}

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

.hero-eyebrow {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 700;
    padding: 6px 20px;
    border-radius: 50px;
    margin-bottom: 16px;
    background: rgba(46,196,182,0.12);
    color: #2EC4B6;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.hero h1 {
    font-size: 3.2rem;
    line-height: 1.15;
    margin-bottom: 20px;
    font-weight: 900;
    letter-spacing: -1px;
    background: linear-gradient(135deg, #FF6B35, #FF8F65);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.1rem;
    opacity: 0.7;
    max-width: 560px;
    margin-bottom: 36px;
    color: #4A4545;
}

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

.hero-image {
    position: relative;
    z-index: 1;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(255,107,53,0.12), 0 8px 20px rgba(0,0,0,0.05);
}

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

/* ===== 按钮 ===== */
.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: 0.3s ease;
    font-size: 0.95rem;
}

.btn-primary {
    background: linear-gradient(135deg, #FF6B35, #FF8F65);
    color: #fff;
    box-shadow: 0 4px 16px rgba(255,107,53,0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 28px rgba(255,107,53,0.4);
}

.btn-outline {
    background: transparent;
    border: 2px solid #FF6B35;
    color: #FF6B35;
}

.btn-outline:hover {
    background: #FF6B35;
    color: #fff;
    transform: translateY(-3px);
}

/* ===== 标签/标题 ===== */
.section-label {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 3px;
    margin-bottom: 12px;
    color: #FF6B35;
    text-transform: uppercase;
}

.section-title {
    font-size: 2.4rem;
    margin-bottom: 16px;
    font-weight: 900;
    letter-spacing: -0.5px;
    line-height: 1.2;
}

.section-desc {
    max-width: 600px;
    opacity: 0.7;
    margin-bottom: 48px;
    font-size: 1.05rem;
    color: #5A5555;
}

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

.category-card {
    background: #fff;
    border-radius: 20px;
    padding: 32px 28px;
    border: 1px solid rgba(255,107,53,0.08);
    transition: 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    box-shadow: 0 2px 8px rgba(0,0,0,0.02);
    position: relative;
    overflow: hidden;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #FF6B35, #2EC4B6);
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.category-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 32px rgba(255,107,53,0.12), 0 4px 12px rgba(0,0,0,0.04);
    border-color: rgba(255,107,53,0.15);
}

.card-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 1.5rem;
    background: linear-gradient(135deg, #FFF2EB, #FFE4D6);
    color: #FF6B35;
}

.card-link {
    font-weight: 700;
    font-size: 0.9rem;
    text-decoration: none;
    color: #2EC4B6;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 8px;
}

.card-link::after {
    content: '→';
    transition: transform 0.2s ease;
}

.card-link:hover::after {
    transform: translateX(4px);
}

/* ===== 特性块 ===== */
.feature-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.feature-image {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 12px 28px rgba(0,0,0,0.05);
    position: relative;
}

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

.feature-text {
    position: relative;
}

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

.feature-list li {
    padding: 8px 0;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1rem;
    font-weight: 500;
}

.feature-list li::before {
    content: '✓';
    font-weight: 800;
    color: #2EC4B6;
    font-size: 1.1rem;
}

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

.stat-item {
    padding: 28px 16px;
    border-radius: 20px;
    border: 1px solid rgba(255,107,53,0.1);
    background: #fff;
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: scale(1.02);
    border-color: #FF6B35;
    box-shadow: 0 8px 24px rgba(255,107,53,0.08);
}

.stat-number {
    font-size: 2.6rem;
    font-weight: 900;
    background: linear-gradient(135deg, #FF6B35, #FF8F65);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
}

.stat-label {
    font-size: 0.95rem;
    opacity: 0.6;
    margin-top: 8px;
    color: #5A5555;
    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: 20px;
    overflow: hidden;
    border: 1px solid rgba(255,107,53,0.08);
    background: #fff;
    transition: 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.content-wall-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 32px rgba(255,107,53,0.12);
}

.content-wall-item img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    transition: transform 0.4s ease;
}

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

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

.content-wall-body h3 {
    font-size: 1.15rem;
    margin-bottom: 8px;
    font-weight: 700;
}

.content-wall-body p {
    font-size: 0.9rem;
    opacity: 0.7;
    color: #5A5555;
}

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

.faq-item {
    border: 1px solid rgba(255,107,53,0.08);
    border-radius: 16px;
    margin-bottom: 10px;
    overflow: hidden;
    cursor: pointer;
    background: #fff;
    transition: border-color 0.3s ease;
}

.faq-item:hover {
    border-color: #FF6B35;
}

.faq-item .faq-question {
    padding: 18px 24px;
    font-weight: 700;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1rem;
    color: #2D2A2B;
}

.faq-item .faq-question::after {
    content: '+';
    font-size: 1.3rem;
    color: #FF6B35;
    transition: transform 0.3s ease;
}

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

.faq-item .faq-answer {
    padding: 0 24px 18px;
    display: none;
    opacity: 0.7;
    color: #5A5555;
    line-height: 1.7;
}

.faq-item.open .faq-answer {
    display: block;
}

/* ===== CTA横幅 ===== */
.cta-banner {
    padding: 64px 24px;
    text-align: center;
    border-radius: 24px;
    background: linear-gradient(135deg, #FF6B35, #FF8F65);
    color: #fff;
    box-shadow: 0 12px 32px rgba(255,107,53,0.25);
    position: relative;
    overflow: hidden;
}

.cta-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at 80% 20%, rgba(255,255,255,0.12) 0%, transparent 60%);
    pointer-events: none;
}

.cta-banner h2 {
    color: #fff;
    font-size: 2rem;
    font-weight: 900;
    margin-bottom: 12px;
}

.cta-banner p {
    max-width: 500px;
    margin: 0 auto 28px;
    opacity: 0.85;
}

.cta-banner .btn-primary {
    background: #fff;
    color: #FF6B35;
    box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}

.cta-banner .btn-primary:hover {
    background: #f5f5f5;
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}

/* ===== 页脚 ===== */
.site-footer {
    padding: 64px 0 32px;
    background: #2D2A2B;
    color: #D9D0C8;
    position: relative;
}

.site-footer .container {
    position: relative;
    z-index: 1;
}

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

.footer-brand {
    max-width: 320px;
}

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

.footer-brand p {
    font-size: 0.9rem;
    opacity: 0.7;
    line-height: 1.7;
}

.footer-col h4 {
    color: #fff;
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 16px;
}

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

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

.footer-col ul li a {
    color: #D9D0C8;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s ease;
    opacity: 0.7;
}

.footer-col ul li a:hover {
    color: #FF6B35;
    opacity: 1;
}

.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;
}

/* ===== 工具类 ===== */
.text-accent {
    color: #FF6B35;
}

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

.seo-description {
    max-width: 600px;
    margin: 0 auto 48px;
    opacity: 0.7;
    color: #5A5555;
    font-size: 1.05rem;
}

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

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

/* ===== 响应式 ===== */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.2rem;
    }

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

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

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

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

    .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(255,249,240,0.98);
        padding: 20px;
        box-shadow: 0 8px 24px rgba(0,0,0,0.06);
        gap: 16px;
    }

    .main-nav.open a {
        padding: 10px 0;
    }

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

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

    .hero p {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-buttons {
        justify-content: center;
    }

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

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

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

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

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

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

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

/* ===== 装饰性波浪分隔 ===== */
.section:nth-child(odd)::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 40px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 40' preserveAspectRatio='none'%3E%3Cpath d='M0,20 Q300,0 600,20 T1200,20 L1200,40 L0,40 Z' fill='%23FEF3E2' opacity='0.6'/%3E%3C/svg%3E") no-repeat bottom;
    background-size: cover;
    pointer-events: none;
    z-index: 1;
}

.section:nth-child(even)::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 40px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 40' preserveAspectRatio='none'%3E%3Cpath d='M0,20 Q300,40 600,20 T1200,20 L1200,40 L0,40 Z' fill='%23FFF9F0' opacity='0.6'/%3E%3C/svg%3E") no-repeat bottom;
    background-size: cover;
    pointer-events: none;
    z-index: 1;
}