*,
*::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: #FFF9F0;
    color: #3D3D3D;
}

/* 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: #F8F2FF;
    background-image: radial-gradient(circle at 15% 20%, rgba(255, 107, 157, 0.06) 0%, transparent 150px),
        radial-gradient(circle at 85% 80%, rgba(91, 91, 214, 0.06) 0%, transparent 200px);
}

/* 导航 */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 249, 240, 0.9);
    backdrop-filter: blur(16px) saturate(1.2);
    border-bottom: 2px solid #FFE8C7;
}

.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: 1.4rem;
    text-decoration: none;
    color: #3D3D3D;
    letter-spacing: -0.5px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    background: linear-gradient(135deg, #FF6B9D, #FFB84D);
    color: #fff;
    box-shadow: 0 4px 12px rgba(255, 107, 157, 0.3);
    transform: rotate(-8deg);
    animation: logoBounce 3s ease-in-out infinite;
}

@keyframes logoBounce {
    0%,
    100% {
        transform: rotate(-8deg) translateY(0);
    }
    50% {
        transform: rotate(-8deg) translateY(-4px);
    }
}

.logo span:last-child {
    background: linear-gradient(135deg, #FF6B9D, #5B5BD6);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.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;
    transition: 0.25s;
    color: #3D3D3D;
    position: relative;
    padding: 4px 0;
}

.main-nav a:not(.nav-cta)::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #FF6B9D, #5B5BD6);
    transition: width 0.3s ease;
    border-radius: 2px;
}

.main-nav a:not(.nav-cta):hover::after {
    width: 100%;
}

.main-nav a:not(.nav-cta):hover {
    color: #5B5BD6;
}

.nav-cta {
    padding: 10px 24px;
    border-radius: 50px;
    color: #fff !important;
    font-weight: 700;
    background: linear-gradient(135deg, #FF6B9D, #5B5BD6);
    box-shadow: 0 4px 15px rgba(255, 107, 157, 0.35);
    transition: 0.3s all ease !important;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(91, 91, 214, 0.4);
    color: #fff !important;
}

.menu-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: #fff;
    border: 2px solid #FFE8C7;
    cursor: pointer;
    align-items: center;
    justify-content: center;
}

.menu-toggle::before {
    content: '☰';
    font-size: 1.5rem;
    color: #5B5BD6;
}

/* Hero */
.hero {
    min-height: calc(80vh);
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 120px;
    background: linear-gradient(120deg, #FFF9F0 40%, #F0F0FF 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -80px;
    right: -80px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 211, 61, 0.25) 0%, rgba(255, 211, 61, 0) 70%);
    border-radius: 50%;
    animation: floatBlob 8s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -60px;
    left: 20%;
    width: 260px;
    height: 260px;
    background: radial-gradient(circle, rgba(255, 107, 157, 0.18) 0%, rgba(255, 107, 157, 0) 70%);
    border-radius: 50%;
    animation: floatBlob 10s ease-in-out infinite reverse;
}

@keyframes floatBlob {
    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(30px, -20px) scale(1.1);
    }
    66% {
        transform: translate(-15px, 15px) scale(0.9);
    }
}

.hero-content {
    max-width: 780px;
    position: relative;
    z-index: 2;
}

.hero-eyebrow {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 700;
    padding: 6px 16px;
    border-radius: 50px;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #FF6B9D, #FFB84D);
    color: #fff;
    letter-spacing: 1px;
    box-shadow: 0 4px 12px rgba(255, 107, 157, 0.25);
    transform: rotate(-2deg);
}

.hero h1 {
    font-size: 3.6rem;
    line-height: 1.1;
    margin-bottom: 20px;
    font-weight: 900;
    letter-spacing: -1.5px;
    background: linear-gradient(135deg, #3D3D3D 30%, #5B5BD6 50%, #FF6B9D 70%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.2rem;
    opacity: 0.75;
    max-width: 560px;
    margin-bottom: 36px;
    line-height: 1.7;
    color: #555;
}

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

.hero-image {
    position: relative;
}

.hero-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 107, 157, 0.1), rgba(91, 91, 214, 0.1));
    border-radius: 24px;
    transform: rotate(4deg);
    transition: transform 0.3s ease;
}

.hero-image:hover::before {
    transform: rotate(0deg) scale(1.02);
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 60px;
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    border: none;
    text-decoration: none;
    transition: 0.3s all ease;
    letter-spacing: 0.3px;
}

.btn-primary {
    color: #fff;
    background: linear-gradient(135deg, #FF6B9D, #FF9A5B);
    box-shadow: 0 6px 20px rgba(255, 107, 157, 0.35);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(255, 107, 157, 0.45);
}

.btn-outline {
    background: transparent;
    border: 2px solid #5B5BD6;
    color: #5B5BD6;
}

.btn-outline:hover {
    background: #5B5BD6;
    color: #fff;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(91, 91, 214, 0.3);
}

/* 标签/标题 */
.section-label {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 3px;
    margin-bottom: 14px;
    text-transform: uppercase;
    color: #FF6B9D;
    position: relative;
    padding-left: 18px;
}

.section-label::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 10px;
    height: 10px;
    background: #5B5BD6;
    border-radius: 50%;
}

.section-title {
    font-size: 2.4rem;
    margin-bottom: 16px;
    font-weight: 900;
    letter-spacing: -1px;
    color: #3D3D3D;
}

.section-desc {
    max-width: 640px;
    opacity: 0.7;
    margin-bottom: 48px;
    line-height: 1.65;
    color: #555;
}

/* 卡片网格 */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
    gap: 28px;
}

.category-card {
    border-radius: 20px;
    padding: 32px 28px;
    border: 1px solid #FFE8C7;
    transition: 0.35s ease all;
    background: #fff;
    position: relative;
    overflow: hidden;
}

.category-card::after {
    content: '';
    position: absolute;
    top: -60px;
    right: -60px;
    width: 120px;
    height: 120px;
    background: radial-gradient(circle, rgba(255, 211, 61, 0.3) 0%, rgba(255, 211, 61, 0) 70%);
    border-radius: 50%;
    transition: transform 0.4s ease;
}

.category-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 30px rgba(255, 184, 77, 0.25);
    border-color: #FFD93D;
}

.category-card:hover::after {
    transform: scale(1.6);
}

.card-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
    font-size: 1.5rem;
    background: linear-gradient(135deg, #F0F0FF, #E0E0FF);
    position: relative;
    z-index: 1;
}

.category-card:nth-child(2) .card-icon {
    background: linear-gradient(135deg, #FFF0F5, #FFE0E8);
}

.category-card:nth-child(3) .card-icon {
    background: linear-gradient(135deg, #FFF8E1, #FFEDB0);
}

.category-card:nth-child(4) .card-icon {
    background: linear-gradient(135deg, #E8FFF0, #C8FFDC);
}

.category-card h3 {
    font-size: 1.3rem;
    margin-bottom: 8px;
    color: #3D3D3D;
    position: relative;
    z-index: 1;
}

.category-card p {
    color: #888;
    font-size: 0.9rem;
    margin-bottom: 16px;
    line-height: 1.5;
    position: relative;
    z-index: 1;
}

.card-link {
    font-weight: 700;
    font-size: 0.85rem;
    text-decoration: none;
    color: #5B5BD6;
    position: relative;
    z-index: 1;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: gap 0.3s;
}

.card-link:hover {
    gap: 8px;
    color: #FF6B9D;
}

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

.feature-image {
    border-radius: 24px;
    overflow: hidden;
    position: relative;
    box-shadow: 0 16px 40px rgba(91, 91, 214, 0.15);
    transform: rotate(-2deg);
    transition: transform 0.4s ease;
}

.feature-image:hover {
    transform: rotate(0deg) scale(1.01);
}

.feature-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(91, 91, 214, 0.1), rgba(255, 107, 157, 0.1));
}

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

.feature-text {
    padding: 20px 0;
}

.feature-text h2 {
    font-size: 2rem;
    margin-bottom: 16px;
    color: #3D3D3D;
    font-weight: 900;
}

.feature-text > p {
    color: #666;
    line-height: 1.7;
    margin-bottom: 24px;
}

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

.feature-list li {
    padding: 8px 0;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1rem;
    color: #444;
    font-weight: 500;
}

.feature-list li::before {
    content: '✦';
    font-weight: 700;
    color: #FF6B9D;
    font-size: 1.1rem;
    background: #FFF0F5;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 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: 20px;
    border: 2px solid #FFE8C7;
    background: #fff;
    position: relative;
    transition: 0.3s ease;
    overflow: hidden;
}

.stat-item:hover {
    transform: translateY(-4px) rotate(1deg);
    box-shadow: 0 12px 30px rgba(255, 184, 77, 0.2);
    border-color: #FFD93D;
}

.stat-item:nth-child(2):hover {
    transform: translateY(-4px) rotate(-1deg);
    border-color: #FF9AC1;
}

.stat-item:nth-child(3):hover {
    transform: translateY(-4px) rotate(1deg);
    border-color: #5BC5FF;
}

.stat-item:nth-child(4):hover {
    transform: translateY(-4px) rotate(-1deg);
    border-color: #9B8CFF;
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    background: linear-gradient(90deg, #FF6B9D, #FFD93D);
    border-radius: 0 0 4px 4px;
}

.stat-number {
    font-size: 2.8rem;
    font-weight: 900;
    background: linear-gradient(135deg, #FF6B9D, #5B5BD6);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -1px;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.65;
    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: 1px solid #FFE8C7;
    transition: 0.35s ease;
    background: #fff;
    position: relative;
}

.content-wall-item:hover {
    transform: translateY(-6px) scale(1.01);
    box-shadow: 0 16px 40px rgba(91, 91, 214, 0.15);
    border-color: #C8C0FF;
}

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

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

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

.content-wall-body h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: #3D3D3D;
}

.content-wall-body p {
    color: #888;
    font-size: 0.88rem;
    line-height: 1.5;
}

.content-wall-tag {
    position: absolute;
    top: 12px;
    left: 12px;
    background: rgba(255, 255, 255, 0.95);
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    color: #5B5BD6;
    backdrop-filter: blur(4px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

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

.faq-item {
    border: 1px solid #E8E0F0;
    border-radius: 16px;
    margin-bottom: 10px;
    overflow: hidden;
    cursor: pointer;
    transition: 0.3s ease;
    background: #fff;
}

.faq-item:hover {
    border-color: #C8C0FF;
    box-shadow: 0 4px 15px rgba(91, 91, 214, 0.08);
}

.faq-item.open {
    border-color: #5B5BD6;
    box-shadow: 0 8px 25px rgba(91, 91, 214, 0.12);
}

.faq-item .faq-question {
    padding: 20px 24px;
    font-weight: 700;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #3D3D3D;
    font-size: 1rem;
}

.faq-item .faq-question::after {
    content: '﹀';
    font-size: 1.2rem;
    color: #5B5BD6;
    transition: transform 0.3s ease;
}

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

.faq-item .faq-answer {
    padding: 0 24px 20px;
    display: none;
    opacity: 0.75;
    line-height: 1.6;
    color: #555;
}

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

/* CTA横幅 */
.cta-banner {
    padding: 64px 24px;
    text-align: center;
    border-radius: 28px;
    background: linear-gradient(135deg, #FF6B9D, #FF9A5B, #FFD93D);
    color: #fff;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(255, 107, 157, 0.3);
}

.cta-banner::before {
    content: '♪';
    position: absolute;
    top: 30px;
    left: 30px;
    font-size: 2rem;
    opacity: 0.25;
    animation: logoBounce 4s ease-in-out infinite;
}

.cta-banner::after {
    content: '✦';
    position: absolute;
    bottom: 30px;
    right: 30px;
    font-size: 2rem;
    opacity: 0.25;
    animation: logoBounce 5s ease-in-out infinite reverse;
}

.cta-banner h2 {
    color: #fff;
    font-size: 2.2rem;
    font-weight: 900;
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}

.cta-banner p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 28px;
    font-size: 1.1rem;
}

.cta-banner .btn-primary {
    background: #fff;
    color: #FF6B9D;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.cta-banner .btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.15);
}

/* 页脚 */
.site-footer {
    padding: 64px 0 28px;
    background: linear-gradient(180deg, #FFF9F0 0%, #F0E8FF 100%);
    border-top: 2px solid #FFE8C7;
    position: relative;
}

.site-footer::before {
    content: '';
    position: absolute;
    top: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent 0%, #FF6B9D, #5B5BD6, #FFD93D, transparent 100%);
}

.site-footer .container {
    position: relative;
    z-index: 2;
}

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

.footer-brand {}
.footer-brand .logo {
    margin-bottom: 16px;
}
.footer-brand p {
    color: #777;
    font-size: 0.92rem;
    line-height: 1.65;
    margin-bottom: 20px;
}

.footer-col h4 {
    font-size: 1.05rem;
    font-weight: 800;
    color: #3D3D3D;
    margin-bottom: 16px;
}

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

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

.footer-col a {
    color: #777;
    text-decoration: none;
    font-size: 0.9rem;
    transition: 0.2s;
}

.footer-col a:hover {
    color: #5B5BD6;
    padding-left: 4px;
}

.footer-bottom {
    border-top: 1px solid #E0D8F0;
    margin-top: 48px;
    padding-top: 24px;
    text-align: center;
    font-size: 0.85rem;
    color: #999;
}

/* 工具类 */
.text-accent {
    color: #5B5BD6;
}

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

.seo-description {
    max-width: 640px;
    margin: 0 auto 56px;
    opacity: 0.75;
    line-height: 1.7;
    color: #555;
    text-align: center;
}

.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;
    }

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

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

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

    .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: 24px;
        box-shadow: 0 16px 40px rgba(0, 0, 0, 0.08);
        border-bottom: 2px solid #FFE8C7;
        backdrop-filter: blur(16px);
        gap: 18px;
        align-items: flex-start;
    }

    .main-nav.open a {
        font-size: 1.05rem;
        padding: 8px 0;
        width: 100%;
    }

    .main-nav.open .nav-cta {
        text-align: center;
        width: auto;
    }
}

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

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

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

    .btn {
        justify-content: center;
    }

    .hero h1 {
        font-size: 2.1rem;
    }

    .section-title {
        font-size: 1.9rem;
    }

    .stat-number {
        font-size: 2.2rem;
    }

    .cta-banner {
        padding: 48px 20px;
    }

    .cta-banner h2 {
        font-size: 1.7rem;
    }
}

/* 装饰性元素 */
.section:nth-child(3)::before {
    content: '♫';
    position: absolute;
    top: 40px;
    left: 50%;
    transform: translateX(-50%) rotate(-12deg);
    font-size: 3rem;
    color: #FFD93D;
    opacity: 0.2;
    animation: logoBounce 6s ease-in-out infinite;
}

.section:nth-child(5)::before {
    content: '✿';
    position: absolute;
    bottom: 30px;
    right: 5%;
    font-size: 2.5rem;
    color: #FF6B9D;
    opacity: 0.15;
    animation: logoBounce 7s ease-in-out infinite reverse;
}

/* 选中文字样式 */
::selection {
    background: #FF6B9D;
    color: #fff;
}

/* 滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #FFF9F0;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, #FF6B9D, #5B5BD6);
    border-radius: 6px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, #FF9AC1, #7B7BE0);
}