:root {
    --primary: #FF6B4A;
    --secondary: #4ECDC4;
    --accent: #FFD93D;
    --ink: #2D3436;
    --cream: #FFF9F5;
    --coral-light: #FF9A5C;
}

/* ===== 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-color: var(--cream);
    color: var(--ink);
    line-height: 1.6;
    /* 漫画半调网点背景 */
    background-image:
        radial-gradient(circle at 20px 30px, rgba(255, 107, 74, 0.07) 2px, transparent 2px),
        radial-gradient(circle at 80px 70px, rgba(78, 205, 196, 0.07) 2px, transparent 2px);
    background-size: 90px 90px, 70px 70px;
    background-attachment: fixed;
}

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

.section {
    padding: 80px 0;
    position: relative;
}

.section:nth-child(even) {
    background: #FFF3EC;
}

/* ===== 导航 ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 249, 245, 0.92);
    backdrop-filter: blur(10px);
    border-bottom: 3px solid var(--ink);
}

.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: 10px;
    font-weight: 900;
    font-size: 1.35rem;
    text-decoration: none;
    color: var(--ink);
    letter-spacing: -0.5px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    background: linear-gradient(135deg, var(--accent), var(--primary));
    border: 2.5px solid var(--ink);
    box-shadow: 2px 2px 0 var(--ink);
    color: var(--ink);
    transform: rotate(-5deg);
    transition: 0.3s;
}

.logo:hover .logo-icon {
    transform: rotate(5deg) scale(1.08);
}

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

.main-nav a {
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--ink);
    transition: 0.2s;
    padding: 6px 2px;
    position: relative;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--accent);
    border-radius: 3px;
    transition: 0.3s;
}

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

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

.nav-cta {
    padding: 9px 22px !important;
    border-radius: 10px;
    background: var(--primary);
    color: #fff !important;
    font-weight: 800;
    border: 2.5px solid var(--ink);
    box-shadow: 3px 3px 0 var(--ink);
    transition: 0.2s;
}

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

.nav-cta:hover {
    transform: translate(2px, 2px);
    box-shadow: 1px 1px 0 var(--ink);
    color: #fff !important;
}

.menu-toggle {
    display: none;
    width: 40px;
    height: 40px;
    border: 2.5px solid var(--ink);
    border-radius: 10px;
    background: var(--accent);
    font-size: 1.2rem;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    box-shadow: 2px 2px 0 var(--ink);
}

/* ===== Hero ===== */
.hero {
    min-height: 85vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    position: relative;
    overflow: hidden;
}

/* 装饰性漫画泡泡 */
.hero::before {
    content: '';
    position: absolute;
    width: 280px;
    height: 280px;
    background: rgba(255, 217, 61, 0.3);
    border-radius: 50%;
    top: -60px;
    right: -60px;
    border: 3px dashed rgba(45, 52, 54, 0.15);
    z-index: 0;
}

.hero::after {
    content: '';
    position: absolute;
    width: 200px;
    height: 200px;
    background: rgba(78, 205, 196, 0.25);
    border-radius: 50%;
    bottom: -50px;
    left: 25%;
    border: 3px dashed rgba(45, 52, 54, 0.15);
    z-index: 0;
}

.hero .container {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    max-width: 720px;
}

.hero-eyebrow {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 800;
    padding: 6px 18px;
    border-radius: 30px;
    margin-bottom: 20px;
    background: var(--secondary);
    color: var(--ink);
    border: 2px solid var(--ink);
    box-shadow: 2px 2px 0 var(--ink);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    transform: rotate(-2deg);
}

.hero h1 {
    font-size: 3.4rem;
    line-height: 1.12;
    margin-bottom: 20px;
    font-weight: 900;
    letter-spacing: -1px;
}

.hero h1::after {
    content: '✳';
    display: inline-block;
    color: var(--primary);
    font-size: 1.8rem;
    margin-left: 10px;
    transform: rotate(15deg);
}

.hero p {
    font-size: 1.15rem;
    opacity: 0.75;
    max-width: 560px;
    margin-bottom: 36px;
    line-height: 1.6;
}

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

.hero-image {
    border-radius: 24px;
    overflow: hidden;
    border: 3px solid var(--ink);
    box-shadow: 10px 10px 0 var(--accent);
    transform: rotate(2deg);
    transition: 0.3s;
}

.hero-image:hover {
    transform: rotate(0deg) scale(1.02);
    box-shadow: 14px 14px 0 var(--secondary);
}

.hero-image img {
    width: 100%;
    height: 320px;
    object-fit: cover;
    display: block;
}

/* ===== 按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 12px;
    font-weight: 800;
    font-size: 0.95rem;
    cursor: pointer;
    border: 2.5px solid var(--ink);
    text-decoration: none;
    transition: 0.2s;
    box-shadow: 3px 3px 0 var(--ink);
}

.btn:hover {
    transform: translate(2px, 2px);
    box-shadow: 1px 1px 0 var(--ink);
}

.btn:active {
    transform: translate(3px, 3px);
    box-shadow: 0 0 0 var(--ink);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--coral-light));
    color: #fff;
}

.btn-primary:hover {
    color: #fff;
}

.btn-outline {
    background: #fff;
    border: 2.5px solid var(--ink);
    color: var(--ink);
    box-shadow: 3px 3px 0 var(--ink);
}

.btn-outline:hover {
    background: var(--accent);
    color: var(--ink);
}

/* ===== 标签/标题 ===== */
.section-label {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 2px;
    margin-bottom: 14px;
    padding: 5px 16px;
    background: var(--accent);
    border: 2px solid var(--ink);
    border-radius: 20px;
    box-shadow: 2px 2px 0 var(--ink);
    text-transform: uppercase;
    transform: rotate(-2deg);
    color: var(--ink);
}

.section-title {
    font-size: 2.4rem;
    margin-bottom: 14px;
    font-weight: 900;
    letter-spacing: -0.5px;
    line-height: 1.2;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 5px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 3px;
    margin-top: 10px;
}

.section-desc {
    max-width: 600px;
    opacity: 0.7;
    margin-bottom: 40px;
    line-height: 1.6;
    font-size: 1.05rem;
}

/* ===== 卡片网格 ===== */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 28px;
}

.category-card {
    background: #fff;
    border-radius: 20px;
    padding: 28px;
    border: 3px solid var(--ink);
    box-shadow: 6px 6px 0 var(--accent);
    transition: 0.25s;
    position: relative;
    overflow: hidden;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 36px;
    height: 36px;
    background: var(--accent);
    border-bottom: 3px solid var(--ink);
    border-left: 3px solid var(--ink);
    border-radius: 0 0 0 16px;
}

.category-card:nth-child(2n) {
    box-shadow: 6px 6px 0 var(--secondary);
}

.category-card:nth-child(3n) {
    box-shadow: 6px 6px 0 var(--primary);
}

.category-card:nth-child(2n)::before {
    background: var(--secondary);
}

.category-card:nth-child(3n)::before {
    background: var(--primary);
}

.category-card:hover {
    transform: translate(-4px, -4px);
    box-shadow: 12px 12px 0 var(--ink);
}

.card-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
    font-size: 1.4rem;
    background: linear-gradient(135deg, var(--accent), var(--coral-light));
    border: 2px solid var(--ink);
    box-shadow: 2px 2px 0 var(--ink);
    transform: rotate(-6deg);
}

.card-link {
    font-weight: 800;
    font-size: 0.85rem;
    text-decoration: none;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 12px;
    transition: 0.2s;
}

.card-link::after {
    content: '→';
    font-size: 1.1rem;
    transition: 0.2s;
}

.card-link:hover::after {
    transform: translateX(5px);
}

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

.feature-image {
    border-radius: 24px;
    overflow: hidden;
    border: 3px solid var(--ink);
    box-shadow: 8px 8px 0 var(--secondary);
    transform: rotate(-1.5deg);
    transition: 0.3s;
}

.feature-image:hover {
    transform: rotate(0deg) scale(1.02);
    box-shadow: 10px 10px 0 var(--primary);
}

.feature-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    min-height: 280px;
}

.feature-text {
    position: relative;
}

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

.feature-list li {
    padding: 10px 0;
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    font-size: 0.95rem;
}

.feature-list li::before {
    content: '✓';
    font-weight: 900;
    color: var(--ink);
    background: var(--accent);
    width: 28px;
    height: 28px;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--ink);
    font-size: 0.8rem;
    box-shadow: 2px 2px 0 var(--ink);
    flex-shrink: 0;
}

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

.stat-item {
    padding: 28px 24px;
    border-radius: 20px;
    border: 3px solid var(--ink);
    background: #fff;
    box-shadow: 6px 6px 0 var(--primary);
    position: relative;
    overflow: hidden;
    transition: 0.25s;
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 8px;
    background: linear-gradient(90deg, var(--primary), var(--accent), var(--secondary));
}

.stat-item:nth-child(2n) {
    box-shadow: 6px 6px 0 var(--secondary);
}

.stat-item:nth-child(3n) {
    box-shadow: 6px 6px 0 var(--accent);
}

.stat-item:hover {
    transform: translate(-3px, -3px);
    box-shadow: 10px 10px 0 var(--ink);
}

.stat-number {
    font-size: 2.6rem;
    font-weight: 900;
    color: var(--primary);
    letter-spacing: -1px;
    line-height: 1.2;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.6;
    margin-top: 8px;
    font-weight: 500;
}

/* ===== 内容墙 ===== */
.content-wall {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 28px;
}

.content-wall-item {
    border-radius: 20px;
    overflow: hidden;
    border: 3px solid var(--ink);
    box-shadow: 5px 5px 0 var(--secondary);
    transition: 0.25s;
    background: #fff;
    cursor: pointer;
}

.content-wall-item:nth-child(3n+1) {
    box-shadow: 5px 5px 0 var(--secondary);
}

.content-wall-item:nth-child(3n+2) {
    box-shadow: 5px 5px 0 var(--accent);
}

.content-wall-item:nth-child(3n) {
    box-shadow: 5px 5px 0 var(--primary);
}

.content-wall-item:hover {
    transform: translate(-4px, -4px) rotate(-0.5deg);
    box-shadow: 10px 10px 0 var(--ink);
}

.content-wall-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-bottom: 3px solid var(--ink);
    transition: 0.4s;
}

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

.content-wall-body {
    padding: 20px;
}

.content-wall-body h3 {
    font-weight: 800;
    font-size: 1.05rem;
    margin-bottom: 8px;
}

.content-wall-body p {
    font-size: 0.85rem;
    opacity: 0.7;
    line-height: 1.5;
}

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

.faq-item {
    border: 3px solid var(--ink);
    border-radius: 16px;
    margin-bottom: 14px;
    overflow: hidden;
    cursor: pointer;
    background: #fff;
    box-shadow: 4px 4px 0 var(--accent);
    transition: 0.25s;
}

.faq-item:hover {
    transform: translate(-2px, -2px);
    box-shadow: 7px 7px 0 var(--secondary);
}

.faq-item.open {
    box-shadow: 4px 4px 0 var(--secondary);
    transform: translate(-2px, -2px);
}

.faq-item .faq-question {
    padding: 18px 22px;
    font-weight: 700;
    font-size: 0.98rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    background: linear-gradient(135deg, rgba(255, 217, 61, 0.15), rgba(255, 249, 245, 0.5));
}

.faq-item .faq-question::after {
    content: '+';
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--primary);
    transition: 0.25s;
    flex-shrink: 0;
}

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

.faq-item .faq-answer {
    padding: 0 22px 18px;
    display: none;
    opacity: 0.7;
    line-height: 1.6;
    font-size: 0.95rem;
    border-top: 2px dashed rgba(45, 52, 54, 0.12);
    padding-top: 14px;
}

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

/* ===== CTA横幅 ===== */
.cta-banner {
    padding: 64px 48px;
    text-align: center;
    border-radius: 24px;
    background: linear-gradient(135deg, var(--primary), var(--coral-light), var(--primary));
    color: #fff;
    border: 3px solid var(--ink);
    box-shadow: 10px 10px 0 var(--accent);
    position: relative;
    overflow: hidden;
}

.cta-banner::before {
    content: '「心有佳梦」';
    position: absolute;
    top: 20px;
    right: 30px;
    font-weight: 900;
    font-size: 1rem;
    background: var(--accent);
    color: var(--ink);
    padding: 6px 16px;
    border-radius: 20px;
    border: 2px solid var(--ink);
    transform: rotate(8deg);
    box-shadow: 2px 2px 0 var(--ink);
    opacity: 0.9;
}

.cta-banner::after {
    content: '';
    position: absolute;
    width: 160px;
    height: 160px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.12);
    bottom: -50px;
    left: -30px;
    border: 3px solid rgba(255, 255, 255, 0.2);
}

.cta-banner h2 {
    color: #fff;
    font-size: 2.2rem;
    margin-bottom: 14px;
    position: relative;
    z-index: 1;
    font-weight: 900;
    letter-spacing: -1px;
    text-shadow: 2px 2px 0 rgba(45, 52, 54, 0.15);
}

.cta-banner h2::after {
    display: none;
}

.cta-banner p {
    position: relative;
    z-index: 1;
    margin-bottom: 24px;
    opacity: 0.92;
    font-size: 1rem;
}

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

.cta-banner .btn-primary:hover {
    background: var(--accent);
    color: var(--ink);
}

/* ===== 页脚 ===== */
.site-footer {
    padding: 64px 0 28px;
    background: var(--accent);
    border-top: 3px solid var(--ink);
    color: var(--ink);
    position: relative;
    margin-top: 40px;
}

.site-footer::before {
    content: '';
    position: absolute;
    top: -18px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 36px;
    background: var(--primary);
    border: 3px solid var(--ink);
    border-radius: 12px 12px 0 0;
}

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

.footer-brand p {
    max-width: 280px;
    opacity: 0.7;
    font-size: 0.9rem;
    line-height: 1.6;
    margin-top: 12px;
}

.footer-col h4 {
    font-weight: 800;
    margin-bottom: 16px;
    font-size: 0.95rem;
    position: relative;
    padding-bottom: 8px;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 24px;
    height: 3px;
    background: var(--ink);
    border-radius: 2px;
}

.footer-col a {
    display: block;
    text-decoration: none;
    color: inherit;
    opacity: 0.6;
    padding: 4px 0;
    font-size: 0.9rem;
    transition: 0.2s;
}

.footer-col a:hover {
    opacity: 1;
    transform: translateX(6px);
    color: var(--primary);
    font-weight: 700;
}

.footer-bottom {
    border-top: 2px solid rgba(45, 52, 54, 0.2);
    margin-top: 40px;
    padding-top: 20px;
    text-align: center;
    font-size: 0.85rem;
    opacity: 0.7;
    font-weight: 500;
}

/* ===== 工具类 ===== */
.text-accent {
    color: var(--primary);
    font-weight: 800;
}

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

.seo-description {
    max-width: 600px;
    margin: 0 auto 48px;
    opacity: 0.7;
    line-height: 1.6;
    text-align: center;
    font-size: 1rem;
}

.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);
    }

    .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: 76px;
        left: 0;
        width: 100%;
        background: var(--cream);
        padding: 24px;
        border-bottom: 3px solid var(--ink);
        border-radius: 0 0 16px 16px;
        gap: 16px;
        box-shadow: 0 8px 20px rgba(45, 52, 54, 0.1);
    }

    .main-nav.open a {
        display: block;
        padding: 8px 4px;
        font-size: 1rem;
    }

    .main-nav.open .nav-cta {
        text-align: center;
        margin-top: 4px;
    }

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

    .hero {
        padding-top: 130px;
        min-height: auto;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

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

    .hero-image img {
        height: 240px;
    }

    .cta-banner {
        padding: 44px 28px;
    }
}

@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;
        width: 100%;
    }

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

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

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

    .section {
        padding: 56px 0;
    }

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

    .cta-banner {
        padding: 36px 20px;
        border-radius: 16px;
    }

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

    .cta-banner::before {
        display: none;
    }

    .site-footer {
        padding: 48px 0 24px;
    }

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

/* ===== 自定义滚动条 ===== */
::-webkit-scrollbar {
    width: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 5px;
    border: 2px solid var(--ink);
}

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

/* ===== 选中文本 ===== */
::selection {
    background: var(--accent);
    color: var(--ink);
}