/* ============================================================
   "流光金韵" (Golden Flow) — 飞禽走兽金鲨银鲨
   设计理念：暖白基调 + 古金主色 + 银灰点缀 + 珊瑚活力
   视觉语言：玻璃态卡片、金色渐变装饰、大胆排版对比
   ============================================================ */

/* ----- 基础重置 & 全局 ----- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
    overflow-x: hidden;
    background: linear-gradient(175deg, #FDF8F0 0%, #F8F0E3 40%, #F5EDE0 100%);
    color: #1E2D3A;
    line-height: 1.6;
    min-height: 100vh;
}

/* ----- 滚动条定制 ----- */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #F5EDE0;
}
::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, #C8943E, #E0B860);
    border-radius: 4px;
}

/* ----- 容器 & 区块 ----- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 96px 0;
    position: relative;
}

.section:nth-child(even) {
    background: rgba(255, 255, 255, 0.55);
    backdrop-filter: blur(6px);
}

/* 金色装饰分隔线（每个 section 顶部） */
.section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, transparent, #C8943E, #E0B860, #C8943E, transparent);
    border-radius: 2px;
    opacity: 0.4;
}

.section:first-of-type::before {
    display: none;
}

/* ----- 导航栏（固定顶部 · 毛玻璃 · 金线）----- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(253, 248, 240, 0.88);
    backdrop-filter: blur(18px) saturate(1.2);
    border-bottom: 1px solid rgba(200, 148, 62, 0.18);
    box-shadow: 0 1px 20px rgba(200, 148, 62, 0.06);
    transition: background 0.3s ease;
}

.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: 1.25rem;
    text-decoration: none;
    color: #1E2D3A;
    letter-spacing: 0.5px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: linear-gradient(135deg, #C8943E, #E0B860);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: #fff;
    box-shadow: 0 4px 12px rgba(200, 148, 62, 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: 500;
    color: #2C3E50;
    transition: color 0.2s ease;
    position: relative;
    padding: 4px 0;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #C8943E, #E0B860);
    transition: width 0.3s ease;
    border-radius: 1px;
}

.main-nav a:hover {
    color: #C8943E;
}

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

.main-nav a.nav-cta {
    padding: 10px 24px;
    border-radius: 50px;
    background: linear-gradient(135deg, #C8943E, #E0B860);
    color: #fff !important;
    font-weight: 700;
    box-shadow: 0 4px 16px rgba(200, 148, 62, 0.3);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

.main-nav a.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(200, 148, 62, 0.4);
}

.menu-toggle {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    cursor: pointer;
    color: #C8943E;
    font-size: 1.4rem;
}

/* ----- Hero 区域 ----- */
.hero {
    min-height: 85vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 72px;
    background: radial-gradient(ellipse at 20% 50%, rgba(200,148,62,0.08) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 50%, rgba(224,184,96,0.06) 0%, transparent 60%);
}

.hero::after {
    content: '';
    position: absolute;
    top: -20%;
    right: -10%;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(200,148,62,0.06) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    max-width: 800px;
    position: relative;
    z-index: 2;
}

.hero-eyebrow {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 3px;
    padding: 6px 18px;
    border-radius: 50px;
    background: linear-gradient(135deg, rgba(200,148,62,0.12), rgba(224,184,96,0.12));
    color: #C8943E;
    border: 1px solid rgba(200,148,62,0.15);
    margin-bottom: 24px;
    text-transform: uppercase;
}

.hero h1 {
    font-size: 3.6rem;
    font-weight: 900;
    line-height: 1.15;
    margin-bottom: 20px;
    color: #1E2D3A;
    letter-spacing: -0.5px;
}

.hero h1 span {
    background: linear-gradient(135deg, #C8943E, #E0B860, #C8943E);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.15rem;
    opacity: 0.65;
    max-width: 600px;
    margin-bottom: 36px;
    color: #2C3E50;
    font-weight: 400;
    line-height: 1.7;
}

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

.hero-image {
    display: none;
}

/* ----- 按钮系统 ----- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    border: none;
    text-decoration: none;
    transition: all 0.25s ease;
    letter-spacing: 0.3px;
}

.btn-primary {
    background: linear-gradient(135deg, #C8943E, #E0B860);
    color: #fff;
    box-shadow: 0 4px 20px rgba(200, 148, 62, 0.35);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(200, 148, 62, 0.45);
}

.btn-outline {
    background: transparent;
    border: 2px solid rgba(200, 148, 62, 0.35);
    color: #C8943E;
}

.btn-outline:hover {
    border-color: #C8943E;
    background: rgba(200, 148, 62, 0.06);
    transform: translateY(-2px);
}

/* ----- 标签 & 标题 ----- */
.section-label {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: #C8943E;
    margin-bottom: 16px;
    position: relative;
}

.section-title {
    font-size: 2.4rem;
    font-weight: 800;
    margin-bottom: 16px;
    color: #1E2D3A;
    letter-spacing: -0.3px;
    line-height: 1.25;
}

.section-desc {
    max-width: 640px;
    opacity: 0.6;
    font-size: 1.05rem;
    margin-bottom: 48px;
    color: #2C3E50;
    line-height: 1.7;
}

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

.category-card {
    border-radius: 16px;
    padding: 32px 28px;
    background: rgba(255, 255, 255, 0.72);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(200, 148, 62, 0.12);
    transition: all 0.3s cubic-bezier(0.22, 1, 0.36, 1);
    box-shadow: 0 2px 12px rgba(200, 148, 62, 0.04);
    position: relative;
    overflow: hidden;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #C8943E, #E0B860, transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.category-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(200, 148, 62, 0.12);
    border-color: rgba(200, 148, 62, 0.25);
}

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

.card-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(200,148,62,0.12), rgba(224,184,96,0.12));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 1.4rem;
    color: #C8943E;
}

.category-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: #1E2D3A;
}

.category-card p {
    font-size: 0.92rem;
    opacity: 0.6;
    margin-bottom: 20px;
    color: #2C3E50;
}

.card-link {
    font-weight: 700;
    font-size: 0.85rem;
    text-decoration: none;
    color: #C8943E;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap 0.2s ease;
}

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

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

.feature-image {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(200, 148, 62, 0.08);
    border: 1px solid rgba(200, 148, 62, 0.1);
}

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

.feature-text {
    position: relative;
}

.feature-text .section-title {
    margin-bottom: 20px;
}

.feature-text .section-desc {
    margin-bottom: 28px;
}

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

.feature-list li {
    padding: 8px 0;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1rem;
    color: #2C3E50;
}

.feature-list li::before {
    content: '✦';
    font-weight: 700;
    color: #C8943E;
    font-size: 0.9rem;
}

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

.stat-item {
    padding: 32px 20px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.65);
    backdrop-filter: blur(6px);
    border: 1px solid rgba(200, 148, 62, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(200, 148, 62, 0.08);
}

.stat-number {
    font-size: 2.6rem;
    font-weight: 900;
    background: linear-gradient(135deg, #C8943E, #E0B860);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
}

.stat-label {
    font-size: 0.92rem;
    opacity: 0.55;
    margin-top: 8px;
    color: #2C3E50;
    font-weight: 500;
    letter-spacing: 0.5px;
}

/* ----- 内容墙（活动优惠）----- */
.content-wall {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 28px;
}

.content-wall-item {
    border-radius: 16px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(6px);
    border: 1px solid rgba(200, 148, 62, 0.08);
    transition: all 0.3s cubic-bezier(0.22, 1, 0.36, 1);
    box-shadow: 0 2px 8px rgba(200, 148, 62, 0.03);
}

.content-wall-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(200, 148, 62, 0.1);
    border-color: rgba(200, 148, 62, 0.2);
}

.content-wall-item img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    display: block;
}

.content-wall-body {
    padding: 24px 24px 28px;
}

.content-wall-body h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: #1E2D3A;
}

.content-wall-body p {
    font-size: 0.9rem;
    opacity: 0.6;
    color: #2C3E50;
    line-height: 1.6;
}

.content-wall-body .card-link {
    margin-top: 16px;
}

/* ----- FAQ（常见问题）----- */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border: 1px solid rgba(200, 148, 62, 0.1);
    border-radius: 12px;
    margin-bottom: 10px;
    overflow: hidden;
    cursor: pointer;
    background: rgba(255, 255, 255, 0.55);
    backdrop-filter: blur(4px);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.faq-item:hover {
    border-color: rgba(200, 148, 62, 0.2);
    box-shadow: 0 4px 16px rgba(200, 148, 62, 0.04);
}

.faq-item .faq-question {
    padding: 18px 24px;
    font-weight: 700;
    font-size: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #1E2D3A;
    letter-spacing: 0.2px;
}

.faq-item .faq-question::after {
    content: '+';
    font-size: 1.3rem;
    font-weight: 300;
    color: #C8943E;
    transition: transform 0.3s ease;
}

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

.faq-item .faq-answer {
    padding: 0 24px 20px;
    display: none;
    opacity: 0.65;
    color: #2C3E50;
    line-height: 1.7;
    font-size: 0.95rem;
}

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

@keyframes fadeSlideIn {
    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: 20px;
    background: linear-gradient(135deg, #C8943E, #E0B860, #D4A843);
    color: #fff;
    box-shadow: 0 12px 40px rgba(200, 148, 62, 0.25);
    position: relative;
    overflow: hidden;
}

.cta-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -30%;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    pointer-events: none;
}

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

.cta-banner p {
    color: rgba(255, 255, 255, 0.8);
    max-width: 520px;
    margin: 0 auto 28px;
    font-size: 1.05rem;
    position: relative;
    z-index: 1;
}

.cta-banner .btn-primary {
    background: #fff;
    color: #C8943E;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    position: relative;
    z-index: 1;
}

.cta-banner .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.15);
}

/* ----- 页脚 ----- */
.site-footer {
    padding: 64px 0 32px;
    background: rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(6px);
    border-top: 1px solid rgba(200, 148, 62, 0.08);
    margin-top: 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2.2fr 1fr 1fr 1fr;
    gap: 48px;
}

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

.footer-brand p {
    font-size: 0.9rem;
    opacity: 0.55;
    color: #2C3E50;
    max-width: 300px;
    line-height: 1.7;
}

.footer-col h4 {
    font-size: 0.95rem;
    font-weight: 700;
    color: #1E2D3A;
    margin-bottom: 18px;
    letter-spacing: 0.5px;
}

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

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

.footer-col ul a {
    text-decoration: none;
    color: #2C3E50;
    opacity: 0.55;
    font-size: 0.9rem;
    transition: opacity 0.2s ease, color 0.2s ease;
}

.footer-col ul a:hover {
    opacity: 1;
    color: #C8943E;
}

.footer-bottom {
    border-top: 1px solid rgba(200, 148, 62, 0.1);
    margin-top: 48px;
    padding-top: 24px;
    text-align: center;
    font-size: 0.85rem;
    opacity: 0.4;
    color: #2C3E50;
    letter-spacing: 0.3px;
}

/* ----- 工具类 ----- */
.text-accent {
    color: #C8943E;
}

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

.seo-description {
    max-width: 640px;
    margin: 0 auto 48px;
    opacity: 0.55;
    font-size: 1rem;
    color: #2C3E50;
    line-height: 1.7;
}

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

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

/* ----- 附加装饰元素（金色光晕）----- */
.glow-ornament {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin: 16px 0 24px;
}

.glow-ornament span {
    width: 40px;
    height: 3px;
    border-radius: 2px;
    background: linear-gradient(90deg, transparent, #C8943E, transparent);
    opacity: 0.3;
}

/* ----- 响应式设计 ----- */
@media (max-width: 1024px) {
    .hero h1 {
        font-size: 2.8rem;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr 1fr;
        gap: 32px;
    }
    .footer-grid .footer-brand {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 64px 0;
    }

    .hero {
        min-height: 70vh;
        padding-top: 72px;
    }

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

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

    .hero-buttons {
        flex-direction: column;
        gap: 12px;
    }

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

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

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

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

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

    .cards-grid,
    .content-wall {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }

    .main-nav {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: rgba(253, 248, 240, 0.98);
        backdrop-filter: blur(18px);
        padding: 24px 32px;
        flex-direction: column;
        gap: 16px;
        border-bottom: 1px solid rgba(200, 148, 62, 0.1);
        box-shadow: 0 12px 32px rgba(0, 0, 0, 0.04);
    }

    .main-nav.open {
        display: flex;
    }

    .main-nav a.nav-cta {
        width: 100%;
        text-align: center;
    }

    .menu-toggle {
        display: flex;
    }

    .cta-banner {
        padding: 40px 24px;
    }

    .cta-banner h2 {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .section {
        padding: 48px 0;
    }

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

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

    .cards-grid,
    .content-wall,
    .stats-bar {
        grid-template-columns: 1fr;
    }

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

    .stats-bar {
        gap: 12px;
    }

    .stat-item {
        padding: 20px 16px;
    }

    .cta-banner {
        padding: 32px 20px;
    }

    .hero-buttons .btn {
        font-size: 0.9rem;
        padding: 12px 24px;
    }

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

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

    .faq-item .faq-answer {
        padding: 0 18px 16px;
        font-size: 0.88rem;
    }

    .category-card {
        padding: 24px 20px;
    }
}

/* ----- 小屏适配（320px 以下）----- */
@media (max-width: 360px) {
    .container {
        padding: 0 16px;
    }

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

    .hero h1 {
        font-size: 1.5rem;
    }

    .hero-eyebrow {
        font-size: 0.7rem;
        padding: 4px 12px;
    }

    .btn {
        font-size: 0.85rem;
        padding: 10px 20px;
    }
}