/* ============================================
   壹号娱乐h5 - 专属设计系统
   风格：活力橙彩 · 圆润漂浮 · 玻璃质感
   配色：珊瑚橙 + 天蓝 + 薄荷绿 + 米白基色
   ============================================ */

/* 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: #FFFAF5;
    color: #2D2D3A;
    line-height: 1.6;
}

/* ===== 自定义滚动条 ===== */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #FFF5F0; }
::-webkit-scrollbar-thumb { background: linear-gradient(135deg, #FF6B4A, #FF9A76); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: #FF5A3A; }

/* ===== 选中样式 ===== */
::selection { background: #FF6B4A; color: #fff; }

/* 核心布局 — 居中 */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 100px 0; position: relative; }
.section:nth-child(even) { background: linear-gradient(135deg, #FFF8F5 0%, #F0F7FF 100%); }

/* ===== 装饰性背景元素 ===== */
.section::before {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    opacity: 0.06;
    pointer-events: none;
    z-index: 0;
}
.section:nth-child(odd)::before {
    background: radial-gradient(circle, #FF6B4A 0%, transparent 70%);
    top: -80px;
    right: -80px;
}
.section:nth-child(even)::before {
    background: radial-gradient(circle, #4A9EFF 0%, transparent 70%);
    bottom: -80px;
    left: -80px;
}

/* 导航 — 固定顶部 */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 250, 245, 0.88);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 107, 74, 0.12);
    box-shadow: 0 4px 30px rgba(255, 107, 74, 0.06);
    transition: 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: 1.35rem;
    text-decoration: none;
    color: #2D2D3A;
    letter-spacing: -0.3px;
    transition: 0.2s;
}
.logo:hover {
    transform: scale(1.02);
}
.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, #FF6B4A, #FF9A76);
    color: #fff;
    box-shadow: 0 4px 12px rgba(255, 107, 74, 0.3);
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}
.main-nav a {
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    color: #4A4A5A;
    transition: 0.25s;
    position: relative;
    padding: 4px 0;
}
.main-nav a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2.5px;
    border-radius: 4px;
    background: linear-gradient(90deg, #FF6B4A, #FF9A76);
    transition: 0.3s;
}
.main-nav a:hover { color: #FF6B4A; }
.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, #FF6B4A, #FF9A76);
    box-shadow: 0 4px 16px rgba(255, 107, 74, 0.3);
    transition: 0.3s !important;
}
.nav-cta::after { display: none !important; }
.nav-cta:hover {
    transform: translateY(-2px) !important;
    box-shadow: 0 8px 24px rgba(255, 107, 74, 0.4) !important;
    color: #fff !important;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #FF6B4A;
    padding: 4px;
}

/* ===== 首页Hero ===== */
.hero {
    min-height: 85vh;
    display: flex;
    align-items: center;
    position: relative;
    background: linear-gradient(160deg, #FFFAF5 0%, #FFF0EA 40%, #F0F7FF 100%);
    overflow: hidden;
    padding-top: 72px;
}
.hero::after {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 107, 74, 0.08) 0%, transparent 70%);
    bottom: -200px;
    right: -150px;
    pointer-events: none;
}

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

.hero-eyebrow {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    padding: 6px 18px;
    border-radius: 50px;
    margin-bottom: 20px;
    background: linear-gradient(135deg, rgba(255, 107, 74, 0.12), rgba(74, 158, 255, 0.12));
    color: #FF6B4A;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.hero h1 {
    font-size: 3.2rem;
    line-height: 1.15;
    margin-bottom: 20px;
    font-weight: 800;
    color: #1E1E2A;
    letter-spacing: -1px;
}
.hero h1 span {
    background: linear-gradient(135deg, #FF6B4A, #FF9A76);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.15rem;
    opacity: 0.65;
    max-width: 560px;
    margin-bottom: 36px;
    color: #4A4A5A;
    line-height: 1.7;
}

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

.hero-image {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(255, 107, 74, 0.15);
    transform: perspective(1000px) rotateY(-4deg);
    transition: 0.5s;
}
.hero-image:hover {
    transform: perspective(1000px) rotateY(0deg);
}
.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;
    font-size: 0.95rem;
    letter-spacing: 0.3px;
}
.btn-primary {
    color: #fff;
    background: linear-gradient(135deg, #FF6B4A, #FF9A76);
    box-shadow: 0 6px 20px rgba(255, 107, 74, 0.3);
}
.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(255, 107, 74, 0.4);
}
.btn-outline {
    background: transparent;
    border: 2px solid #FF6B4A;
    color: #FF6B4A;
}
.btn-outline:hover {
    background: #FF6B4A;
    color: #fff;
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(255, 107, 74, 0.2);
}

/* ===== 标签/标题 ===== */
.section-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 3px;
    margin-bottom: 14px;
    text-transform: uppercase;
    color: #FF6B4A;
    background: rgba(255, 107, 74, 0.1);
    padding: 4px 16px;
    border-radius: 50px;
}
.section-title {
    font-size: 2.4rem;
    margin-bottom: 16px;
    font-weight: 800;
    color: #1E1E2A;
    letter-spacing: -0.5px;
    line-height: 1.2;
}
.section-desc {
    max-width: 600px;
    opacity: 0.65;
    margin-bottom: 48px;
    font-size: 1.05rem;
    color: #5A5A6A;
    line-height: 1.7;
}

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

.category-card {
    border-radius: 20px;
    padding: 32px 28px;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 107, 74, 0.08);
    box-shadow: 0 8px 32px rgba(255, 107, 74, 0.06);
    transition: 0.35s;
    position: relative;
    overflow: hidden;
}
.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #FF6B4A, #FF9A76, #4A9EFF);
    opacity: 0;
    transition: 0.35s;
}
.category-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 48px rgba(255, 107, 74, 0.12);
    border-color: rgba(255, 107, 74, 0.2);
}
.category-card:hover::before { opacity: 1; }

.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, rgba(255, 107, 74, 0.12), rgba(255, 154, 118, 0.12));
    color: #FF6B4A;
}

.category-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: #1E1E2A;
}
.category-card p {
    font-size: 0.9rem;
    opacity: 0.6;
    margin-bottom: 18px;
    line-height: 1.6;
}

.card-link {
    font-weight: 700;
    font-size: 0.85rem;
    text-decoration: none;
    color: #FF6B4A;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: 0.2s;
}
.card-link:hover { gap: 12px; color: #FF5A3A; }

/* ===== 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(74, 158, 255, 0.12);
    transition: 0.4s;
}
.feature-image:hover {
    transform: scale(1.02);
}
.feature-image img {
    width: 100%;
    height: auto;
    display: block;
}

.feature-text h3 {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 16px;
    color: #1E1E2A;
    letter-spacing: -0.3px;
}
.feature-text > p {
    font-size: 1rem;
    opacity: 0.65;
    margin-bottom: 24px;
    line-height: 1.7;
}

.feature-list {
    list-style: none;
}
.feature-list li {
    padding: 10px 0;
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 500;
    color: #3A3A4A;
    border-bottom: 1px solid rgba(255, 107, 74, 0.06);
}
.feature-list li:last-child { border-bottom: none; }
.feature-list li::before {
    content: '✦';
    font-weight: 700;
    color: #FF6B4A;
    font-size: 1rem;
}

/* ===== 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;
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 107, 74, 0.08);
    box-shadow: 0 8px 24px rgba(255, 107, 74, 0.04);
    transition: 0.3s;
}
.stat-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 36px rgba(255, 107, 74, 0.1);
}

.stat-number {
    font-size: 2.8rem;
    font-weight: 800;
    background: linear-gradient(135deg, #FF6B4A, #FF9A76);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}
.stat-label {
    font-size: 0.9rem;
    opacity: 0.55;
    margin-top: 8px;
    font-weight: 500;
    color: #5A5A6A;
}

/* ===== 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;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 107, 74, 0.08);
    box-shadow: 0 8px 24px rgba(255, 107, 74, 0.04);
    transition: 0.35s;
}
.content-wall-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 48px rgba(255, 107, 74, 0.1);
    border-color: rgba(255, 107, 74, 0.15);
}
.content-wall-item img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    transition: 0.4s;
}
.content-wall-item:hover img {
    transform: scale(1.05);
}
.content-wall-body {
    padding: 24px;
}
.content-wall-body .tag {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #4A9EFF;
    background: rgba(74, 158, 255, 0.1);
    padding: 3px 12px;
    border-radius: 50px;
    margin-bottom: 10px;
}
.content-wall-body h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: #1E1E2A;
}
.content-wall-body p {
    font-size: 0.88rem;
    opacity: 0.55;
    line-height: 1.6;
}

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

.faq-item {
    border: 1px solid rgba(255, 107, 74, 0.1);
    border-radius: 16px;
    margin-bottom: 10px;
    overflow: hidden;
    cursor: pointer;
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(8px);
    transition: 0.3s;
}
.faq-item:hover {
    border-color: rgba(255, 107, 74, 0.2);
    box-shadow: 0 4px 16px rgba(255, 107, 74, 0.04);
}

.faq-item .faq-question {
    padding: 18px 24px;
    font-weight: 700;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #2D2D3A;
    font-size: 1rem;
}
.faq-item .faq-question::after {
    content: '+';
    font-size: 1.4rem;
    font-weight: 300;
    color: #FF6B4A;
    transition: 0.3s;
}
.faq-item.open .faq-question::after {
    content: '−';
    transform: rotate(0deg);
}

.faq-item .faq-answer {
    padding: 0 24px 20px;
    display: none;
    opacity: 0.65;
    line-height: 1.7;
    color: #4A4A5A;
}
.faq-item.open .faq-answer {
    display: block;
}

/* ===== CTA横幅 ===== */
.cta-banner {
    padding: 72px 32px;
    text-align: center;
    border-radius: 24px;
    background: linear-gradient(135deg, #FF6B4A 0%, #FF9A76 40%, #4A9EFF 100%);
    box-shadow: 0 20px 60px rgba(255, 107, 74, 0.2);
    position: relative;
    overflow: hidden;
}
.cta-banner::before {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.06);
    top: -150px;
    right: -100px;
}
.cta-banner::after {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.04);
    bottom: -100px;
    left: -80px;
}
.cta-banner h2 {
    color: #fff;
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 12px;
    position: relative;
    z-index: 1;
}
.cta-banner p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 28px;
    font-size: 1.05rem;
    position: relative;
    z-index: 1;
}
.cta-banner .btn-primary {
    background: #fff;
    color: #FF6B4A;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}
.cta-banner .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 36px rgba(0, 0, 0, 0.15);
}

/* ===== 页脚 ===== */
.site-footer {
    padding: 72px 0 32px;
    background: #2D2D3A;
    color: rgba(255, 255, 255, 0.85);
    position: relative;
}

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

.footer-brand .logo {
    color: #fff;
    margin-bottom: 16px;
}
.footer-brand p {
    opacity: 0.55;
    font-size: 0.9rem;
    line-height: 1.7;
    max-width: 300px;
}

.footer-col h5 {
    font-size: 0.9rem;
    font-weight: 700;
    color: #FF9A76;
    margin-bottom: 18px;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.footer-col ul {
    list-style: none;
}
.footer-col ul li {
    margin-bottom: 10px;
}
.footer-col ul a {
    color: rgba(255, 255, 255, 0.55);
    text-decoration: none;
    font-size: 0.9rem;
    transition: 0.2s;
}
.footer-col ul a:hover {
    color: #FF9A76;
    padding-left: 4px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    margin-top: 48px;
    padding-top: 24px;
    text-align: center;
    font-size: 0.85rem;
    opacity: 0.4;
    letter-spacing: 0.5px;
}

/* ===== 工具类 ===== */
.text-accent {
    color: #FF6B4A;
}
.text-center {
    text-align: center;
}
.seo-description {
    max-width: 600px;
    margin: 0 auto 48px;
    opacity: 0.65;
    font-size: 1.05rem;
    line-height: 1.7;
    color: #5A5A6A;
}
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

/* ===== 浮动装饰粒子 ===== */
.floating-particle {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    opacity: 0.15;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .hero h1 { font-size: 2.6rem; }
    .section-title { font-size: 2rem; }
    .stat-number { font-size: 2.2rem; }
}

@media (max-width: 768px) {
    .hero { min-height: auto; padding: 120px 0 60px; }
    .hero h1 { font-size: 2rem; }
    .hero p { font-size: 1rem; }
    .hero-buttons { flex-direction: column; align-items: flex-start; }
    .feature-block { grid-template-columns: 1fr; gap: 40px; }
    .feature-block .feature-image { order: -1; }
    .stats-bar { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    .section-title { font-size: 1.6rem; }
    .cta-banner h2 { font-size: 1.6rem; }
    .cta-banner { padding: 48px 24px; }
    .main-nav { display: none; }
    .menu-toggle { display: flex; align-items: center; justify-content: center; width: 40px; height: 40px; background: rgba(255, 107, 74, 0.08); border-radius: 12px; }
    .main-nav.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: rgba(255, 250, 245, 0.98);
        backdrop-filter: blur(20px);
        padding: 24px 32px;
        gap: 16px;
        box-shadow: 0 20px 60px rgba(0,0,0,0.06);
        border-bottom: 1px solid rgba(255, 107, 74, 0.08);
    }
    .main-nav.open a { font-size: 1.05rem; padding: 8px 0; }
    .main-nav.open .nav-cta { text-align: center; margin-top: 8px; }
    .cards-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
    .content-wall { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
    .hero-image { transform: none; }
    .hero-image:hover { transform: none; }
}

@media (max-width: 480px) {
    .cards-grid,
    .content-wall,
    .stats-bar {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }
    .hero h1 { font-size: 1.7rem; }
    .hero-buttons { flex-direction: column; width: 100%; }
    .hero-buttons .btn { width: 100%; justify-content: center; }
    .section { padding: 60px 0; }
    .stat-item { padding: 24px 16px; }
    .stat-number { font-size: 1.8rem; }
    .section-title { font-size: 1.4rem; }
    .cta-banner h2 { font-size: 1.3rem; }
    .cta-banner { padding: 36px 20px; border-radius: 16px; }
    .logo { font-size: 1.1rem; }
    .logo-icon { width: 34px; height: 34px; font-size: 1rem; }
    .category-card { padding: 24px 20px; }
    .content-wall-body { padding: 18px; }
    .faq-item .faq-question { padding: 14px 18px; font-size: 0.9rem; }
    .faq-item .faq-answer { padding: 0 18px 16px; font-size: 0.88rem; }
}