/* ============================================
   bg捕鱼大师 · 海洋度假美学设计系统
   风格：明亮 · 波浪 · 玻璃质感 · 珊瑚海岸
   ============================================ */

/* 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: #F7FCF9;
    color: #1A3A3A;
    line-height: 1.6;
}

/* 自定义波浪背景装饰 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(ellipse 80% 60% at 0% 0%, rgba(78, 205, 196, 0.08) 0%, transparent 70%),
        radial-gradient(ellipse 60% 80% at 100% 10%, rgba(255, 107, 107, 0.06) 0%, transparent 70%),
        radial-gradient(ellipse 70% 50% at 50% 100%, rgba(255, 217, 61, 0.06) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

/* 核心布局 — 必须居中 */
.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: linear-gradient(135deg, #F0F9F6 0%, #E8F4F0 100%);
}

/* 导航 — 固定顶部 */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.82);
    backdrop-filter: blur(18px) saturate(180%);
    -webkit-backdrop-filter: blur(18px) saturate(180%);
    border-bottom: 1px solid rgba(78, 205, 196, 0.15);
    transition: background 0.3s;
}

.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: #1A3A3A;
    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, #FF6B6B, #FF8E53);
    color: #fff;
    box-shadow: 0 4px 12px rgba(255, 107, 107, 0.3);
}

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

.main-nav a {
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 600;
    color: #2D5A5A;
    transition: color 0.2s, transform 0.2s;
    position: relative;
    padding: 4px 0;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #4ECDC4, #FF6B6B);
    transition: width 0.3s ease;
    border-radius: 2px;
}

.main-nav a:hover {
    color: #FF6B6B;
}

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

.nav-cta {
    padding: 10px 24px !important;
    border-radius: 50px !important;
    color: #fff !important;
    font-weight: 700 !important;
    background: linear-gradient(135deg, #FF6B6B, #FF8E53) !important;
    box-shadow: 0 4px 16px rgba(255, 107, 107, 0.25) !important;
    transition: transform 0.2s, box-shadow 0.2s !important;
}

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

.nav-cta:hover {
    transform: translateY(-2px) !important;
    box-shadow: 0 8px 24px rgba(255, 107, 107, 0.35) !important;
}

.menu-toggle {
    display: none;
    width: 40px;
    height: 40px;
    border: none;
    background: rgba(78, 205, 196, 0.1);
    border-radius: 10px;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: #1A3A3A;
    transition: background 0.2s;
}

.menu-toggle:hover {
    background: rgba(78, 205, 196, 0.2);
}

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

/* 波浪装饰 */
.hero::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 120px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 120' preserveAspectRatio='none'%3E%3Cpath d='M0,60 C200,120 400,0 600,60 C800,120 1000,0 1200,60 L1200,120 L0,120 Z' fill='%23F0F9F6'/%3E%3C/svg%3E") no-repeat bottom;
    background-size: 100% 120px;
    z-index: 0;
}

.hero-content {
    max-width: 680px;
    position: relative;
    z-index: 1;
}

.hero-eyebrow {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 2px;
    padding: 6px 18px;
    border-radius: 50px;
    margin-bottom: 20px;
    background: linear-gradient(135deg, rgba(78, 205, 196, 0.15), rgba(255, 107, 107, 0.1));
    color: #FF6B6B;
    border: 1px solid rgba(78, 205, 196, 0.2);
    text-transform: uppercase;
}

.hero h1 {
    font-size: 3.2rem;
    line-height: 1.15;
    margin-bottom: 20px;
    letter-spacing: -1px;
    font-weight: 800;
    background: linear-gradient(135deg, #1A3A3A 30%, #FF6B6B 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.15rem;
    opacity: 0.65;
    max-width: 540px;
    margin-bottom: 36px;
    line-height: 1.7;
    color: #2D5A5A;
}

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

.hero-image {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(78, 205, 196, 0.15), 0 8px 24px rgba(0, 0, 0, 0.05);
    position: relative;
}

.hero-image::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    pointer-events: none;
}

.hero-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.6s ease;
}

.hero-image:hover img {
    transform: scale(1.03);
}

/* 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: all 0.25s ease;
    font-size: 0.95rem;
    letter-spacing: 0.3px;
}

.btn-primary {
    color: #fff;
    background: linear-gradient(135deg, #FF6B6B, #FF8E53);
    box-shadow: 0 4px 20px rgba(255, 107, 107, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 32px rgba(255, 107, 107, 0.4);
}

.btn-outline {
    background: transparent;
    border: 2px solid #4ECDC4;
    color: #4ECDC4;
}

.btn-outline:hover {
    background: rgba(78, 205, 196, 0.08);
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(78, 205, 196, 0.15);
}

/* 标签/标题 */
.section-label {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 3px;
    margin-bottom: 14px;
    text-transform: uppercase;
    color: #FF6B6B;
    padding: 4px 16px;
    border-radius: 50px;
    background: rgba(255, 107, 107, 0.08);
}

.section-title {
    font-size: 2.4rem;
    margin-bottom: 16px;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: #1A3A3A;
    line-height: 1.2;
}

.section-desc {
    max-width: 600px;
    opacity: 0.6;
    margin-bottom: 48px;
    font-size: 1.05rem;
    color: #2D5A5A;
    line-height: 1.7;
}

/* 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 rgba(78, 205, 196, 0.12);
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(8px);
    transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    overflow: hidden;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #4ECDC4, #FFD93D, #FF6B6B);
    opacity: 0;
    transition: opacity 0.3s;
}

.category-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 48px rgba(78, 205, 196, 0.12), 0 4px 16px rgba(0, 0, 0, 0.04);
    border-color: rgba(78, 205, 196, 0.25);
}

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

.card-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 1.4rem;
    background: linear-gradient(135deg, #E8F9F6, #D0F0EC);
    color: #4ECDC4;
    transition: transform 0.3s;
}

.category-card:hover .card-icon {
    transform: scale(1.05) rotate(-5deg);
}

.card-link {
    font-weight: 700;
    font-size: 0.88rem;
    text-decoration: none;
    color: #FF6B6B;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 16px;
    transition: gap 0.2s;
}

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

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

.feature-image {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 16px 48px rgba(78, 205, 196, 0.1);
    position: relative;
}

.feature-image::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    pointer-events: none;
}

.feature-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.6s ease;
}

.feature-image:hover img {
    transform: scale(1.04);
}

.feature-text {
    padding: 8px 0;
}

.feature-text h3 {
    font-size: 1.6rem;
    font-weight: 800;
    margin-bottom: 16px;
    color: #1A3A3A;
}

.feature-text p {
    color: #2D5A5A;
    opacity: 0.7;
    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-weight: 500;
    color: #1A3A3A;
}

.feature-list li::before {
    content: '🐟';
    font-weight: 700;
    font-size: 1.1rem;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(78, 205, 196, 0.1);
    border-radius: 8px;
}

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

.stat-item {
    padding: 32px 20px;
    border-radius: 20px;
    border: 1px solid rgba(78, 205, 196, 0.12);
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(6px);
    transition: transform 0.3s, box-shadow 0.3s;
}

.stat-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(78, 205, 196, 0.1);
}

.stat-number {
    font-size: 2.6rem;
    font-weight: 800;
    background: linear-gradient(135deg, #FF6B6B, #FF8E53);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.stat-label {
    font-size: 0.92rem;
    opacity: 0.55;
    margin-top: 8px;
    font-weight: 500;
    color: #2D5A5A;
}

/* 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(78, 205, 196, 0.1);
    background: #fff;
    transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
}

.content-wall-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 48px rgba(78, 205, 196, 0.1);
    border-color: rgba(78, 205, 196, 0.2);
}

.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;
}

.content-wall-body h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: #1A3A3A;
}

.content-wall-body p {
    opacity: 0.6;
    font-size: 0.9rem;
    color: #2D5A5A;
    line-height: 1.6;
}

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

.faq-item {
    border: 1px solid rgba(78, 205, 196, 0.12);
    border-radius: 16px;
    margin-bottom: 10px;
    overflow: hidden;
    cursor: pointer;
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(4px);
    transition: box-shadow 0.3s, border-color 0.3s;
}

.faq-item:hover {
    border-color: rgba(78, 205, 196, 0.25);
    box-shadow: 0 4px 16px rgba(78, 205, 196, 0.06);
}

.faq-item .faq-question {
    padding: 18px 24px;
    font-weight: 700;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #1A3A3A;
    font-size: 1rem;
    letter-spacing: 0.2px;
}

.faq-item .faq-question::after {
    content: '+';
    font-size: 1.4rem;
    color: #4ECDC4;
    transition: transform 0.3s;
    font-weight: 300;
}

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

.faq-item .faq-answer {
    padding: 0 24px 18px;
    display: none;
    opacity: 0.65;
    color: #2D5A5A;
    line-height: 1.7;
}

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

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 0.65; transform: translateY(0); }
}

/* CTA横幅 */
.cta-banner {
    padding: 64px 32px;
    text-align: center;
    border-radius: 24px;
    background: linear-gradient(135deg, #1A3A3A 0%, #2D5A5A 50%, #1A3A3A 100%);
    position: relative;
    overflow: hidden;
    color: #fff;
}

.cta-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle 300px at 20% 80%, rgba(78, 205, 196, 0.15), transparent),
        radial-gradient(circle 200px at 80% 20%, rgba(255, 107, 107, 0.1), transparent);
    pointer-events: none;
}

.cta-banner h2 {
    color: #fff;
    font-size: 2rem;
    font-weight: 800;
    position: relative;
    z-index: 1;
    margin-bottom: 12px;
}

.cta-banner p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 28px;
    position: relative;
    z-index: 1;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.cta-banner .btn-primary {
    background: #fff;
    color: #1A3A3A;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    position: relative;
    z-index: 1;
}

.cta-banner .btn-primary:hover {
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    transform: translateY(-3px);
}

/* 页脚 */
.site-footer {
    padding: 64px 0 28px;
    background: linear-gradient(180deg, #F7FCF9 0%, #E8F4F0 100%);
    border-top: 1px solid rgba(78, 205, 196, 0.08);
}

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

.footer-brand h3 {
    font-size: 1.2rem;
    font-weight: 800;
    margin-bottom: 12px;
    color: #1A3A3A;
}

.footer-brand p {
    opacity: 0.55;
    font-size: 0.9rem;
    max-width: 300px;
    color: #2D5A5A;
    line-height: 1.7;
}

.footer-col h4 {
    font-size: 0.88rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: #1A3A3A;
    letter-spacing: 0.5px;
}

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

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

.footer-col ul li a {
    text-decoration: none;
    color: #2D5A5A;
    opacity: 0.6;
    font-size: 0.88rem;
    transition: opacity 0.2s, padding-left 0.2s;
}

.footer-col ul li a:hover {
    opacity: 1;
    padding-left: 4px;
    color: #FF6B6B;
}

.footer-bottom {
    border-top: 1px solid rgba(78, 205, 196, 0.12);
    margin-top: 48px;
    padding-top: 24px;
    text-align: center;
    font-size: 0.82rem;
    color: #2D5A5A;
    opacity: 0.5;
    letter-spacing: 0.3px;
}

/* 工具类 */
.text-accent {
    color: #FF6B6B;
}

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

.seo-description {
    max-width: 600px;
    margin: 0 auto 48px;
    opacity: 0.6;
    font-size: 1.05rem;
    color: #2D5A5A;
    line-height: 1.7;
}

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

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

/* 辅助波浪分隔线 */
.wave-divider {
    width: 100%;
    height: 60px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 60' preserveAspectRatio='none'%3E%3Cpath d='M0,30 C200,60 400,0 600,30 C800,60 1000,0 1200,30 L1200,60 L0,60 Z' fill='%23F0F9F6' opacity='0.5'/%3E%3C/svg%3E") no-repeat bottom;
    background-size: 100% 60px;
    margin: -60px 0 0;
}

/* 浮动装饰圆 */
.float-circle {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    opacity: 0.08;
}

.float-circle.c1 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, #4ECDC4, transparent);
    top: -100px;
    right: -80px;
}

.float-circle.c2 {
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, #FFD93D, transparent);
    bottom: -60px;
    left: -60px;
}

.float-circle.c3 {
    width: 150px;
    height: 150px;
    background: radial-gradient(circle, #FF6B6B, transparent);
    top: 40%;
    right: -40px;
}

/* ============================================
   响应式
   ============================================ */

@media (max-width: 1024px) {
    .hero h1 {
        font-size: 2.6rem;
    }

    .section-title {
        font-size: 2rem;
    }

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

    .footer-grid > :first-child {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    .hero {
        min-height: auto;
        padding: 120px 0 80px;
    }

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

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

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

    .feature-block .feature-image {
        order: -1;
    }

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

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

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

    .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, 255, 255, 0.98);
        backdrop-filter: blur(18px);
        padding: 28px 24px;
        gap: 20px;
        border-bottom: 1px solid rgba(78, 205, 196, 0.1);
        box-shadow: 0 16px 48px rgba(0, 0, 0, 0.04);
    }

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

    .nav-cta {
        text-align: center;
        padding: 12px 24px !important;
    }

    .section {
        padding: 72px 0;
    }

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

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

    .content-wall-item img {
        height: 180px;
    }
}

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

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

    .hero-buttons {
        flex-direction: column;
    }

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

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

    .section-title {
        font-size: 1.6rem;
    }

    .stat-number {
        font-size: 1.8rem;
    }

    .stat-item {
        padding: 24px 16px;
    }

    .container {
        padding: 0 16px;
    }

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

    .content-wall-item img {
        height: 160px;
    }

    .faq-item .faq-question {
        padding: 14px 18px;
        font-size: 0.92rem;
    }

    .faq-item .faq-answer {
        padding: 0 18px 14px;
    }

    .section {
        padding: 56px 0;
    }

    .cta-banner {
        padding: 40px 20px;
        border-radius: 16px;
    }
}

/* ============================================
   平滑滚动与选中样式
   ============================================ */

html {
    scroll-behavior: smooth;
}

::selection {
    background: rgba(78, 205, 196, 0.2);
    color: #1A3A3A;
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #F0F9F6;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, #4ECDC4, #FF6B6B);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, #3DBDB5, #FF5A5A);
}