/* ===== 爱游戏(AYX) 品牌官网样式表 ===== */
/* 全局重置与设计系统 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --brand-primary: #0b1a33;
    --brand-accent: #f0b830;
    --brand-glow: #f5d76e;
    --brand-dark: #070f1c;
    --glass-bg: rgba(255, 255, 255, 0.08);
    --glass-border: rgba(255, 255, 255, 0.15);
    --shadow-sm: 0 8px 20px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 12px 28px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.12);
    --radius-sm: 12px;
    --radius-md: 18px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.4s cubic-bezier(0.2, 0.9, 0.1, 1);
    --font-sans: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
}

body {
    font-family: var(--font-sans);
    background: #f6f9fc;
    color: #1a2639;
    line-height: 1.6;
    transition: background var(--transition-smooth), color var(--transition-smooth);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body.dark {
    background: #0b1320;
    color: #e2e9f0;
}

body.dark {
    --glass-bg: rgba(10, 20, 40, 0.6);
    --glass-border: rgba(255, 215, 100, 0.2);
    --shadow-sm: 0 8px 24px rgba(0, 0, 0, 0.5);
    --shadow-md: 0 12px 32px rgba(0, 0, 0, 0.6);
    --shadow-lg: 0 20px 48px rgba(0, 0, 0, 0.7);
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast);
}

ul {
    list-style: none;
}

img, svg {
    display: block;
    max-width: 100%;
    height: auto;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== 玻璃卡片 ===== */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-fast), box-shadow var(--transition-smooth);
}

.glass-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ===== 按钮系统 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #f0b830, #e5a020);
    color: #0b1a33;
    font-weight: 600;
    padding: 12px 28px;
    border-radius: 60px;
    border: none;
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
    box-shadow: 0 6px 14px rgba(240, 184, 48, 0.3);
    font-size: 0.95rem;
    letter-spacing: 0.3px;
}

.btn:hover {
    transform: scale(1.02);
    box-shadow: 0 10px 20px rgba(240, 184, 48, 0.4);
    background: linear-gradient(135deg, #f5c040, #e8a820);
}

.btn:active {
    transform: scale(0.98);
}

/* ===== 滚动动画 ===== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s cubic-bezier(0.2, 0.9, 0.1, 1), transform 0.7s cubic-bezier(0.2, 0.9, 0.1, 1);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== 头部导航 ===== */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(11, 26, 51, 0.85);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(255, 215, 100, 0.2);
    transition: background var(--transition-smooth);
}

body.dark .header {
    background: rgba(8, 16, 30, 0.9);
    border-bottom-color: rgba(255, 215, 100, 0.15);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 0;
}

.logo svg {
    height: 40px;
    width: auto;
    transition: transform var(--transition-fast);
}

.logo:hover svg {
    transform: scale(1.02);
}

.nav {
    display: flex;
    gap: 28px;
    font-weight: 500;
}

.nav a {
    position: relative;
    padding: 6px 0;
    color: #f0f4fa;
    transition: color var(--transition-fast);
    font-size: 0.95rem;
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #f0b830, #f5d76e);
    transition: width 0.25s ease;
    border-radius: 2px;
}

.nav a:hover::after,
.nav a.active::after {
    width: 100%;
}

.nav a.active {
    color: #f5d76e;
}

.nav a:hover {
    color: #f5d76e;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* 搜索模拟 */
.search-sim {
    display: flex;
    max-width: 400px;
    border-radius: 60px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 215, 100, 0.2);
    padding: 4px 4px 4px 18px;
    transition: border-color var(--transition-fast), background var(--transition-fast);
}

.search-sim:focus-within {
    border-color: rgba(240, 184, 48, 0.5);
    background: rgba(255, 255, 255, 0.1);
}

.search-sim input {
    background: transparent;
    border: none;
    padding: 10px 0;
    color: white;
    outline: none;
    width: 100%;
    font-size: 0.9rem;
}

.search-sim input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.search-sim button {
    background: linear-gradient(135deg, #f0b830, #e5a020);
    border: none;
    border-radius: 60px;
    padding: 8px 20px;
    font-weight: 600;
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    color: #0b1a33;
    font-size: 0.9rem;
}

.search-sim button:hover {
    transform: scale(1.02);
    box-shadow: 0 4px 12px rgba(240, 184, 48, 0.3);
}

/* 暗色模式切换 */
.dark-toggle {
    background: none;
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 40px;
    padding: 6px 14px;
    color: #f0f4fa;
    font-size: 18px;
    cursor: pointer;
    transition: background var(--transition-fast), border-color var(--transition-fast);
    line-height: 1;
}

.dark-toggle:hover {
    background: rgba(255, 215, 100, 0.15);
    border-color: rgba(255, 215, 100, 0.4);
}

/* 移动菜单按钮 */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 28px;
    cursor: pointer;
    padding: 4px 8px;
    transition: opacity var(--transition-fast);
}

.mobile-menu-btn:hover {
    opacity: 0.8;
}

/* 移动菜单 */
.mobile-nav {
    display: none;
    flex-direction: column;
    background: rgba(8, 18, 34, 0.97);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 20px 24px;
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.3s ease;
}

.mobile-nav.open {
    display: flex;
    max-height: 600px;
    padding: 20px 24px;
}

.mobile-nav a {
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    color: #eef3fc;
    font-weight: 500;
    transition: color var(--transition-fast), padding-left var(--transition-fast);
    font-size: 1.05rem;
}

.mobile-nav a:hover,
.mobile-nav a.active {
    color: #f5d76e;
    padding-left: 8px;
}

.mobile-nav a:last-child {
    border-bottom: none;
}

/* ===== Hero Banner 轮播 ===== */
.hero-carousel {
    position: relative;
    overflow: hidden;
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    min-height: 480px;
    background: linear-gradient(145deg, #0b1a33 0%, #1b2f50 100%);
}

.hero-slide {
    display: none;
    padding: 60px 20px;
    align-items: center;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
    min-height: 480px;
    animation: fadeIn 0.6s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: scale(0.98); }
    to { opacity: 1; transform: scale(1); }
}

.hero-slide.active {
    display: flex;
}

.hero-content {
    max-width: 600px;
    color: white;
}

.hero-content h1 {
    font-size: clamp(2.4rem, 6vw, 4.2rem);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
}

.hero-content h1 span {
    background: linear-gradient(120deg, #f0c040, #f5d76e);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero-content p {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 28px;
    max-width: 540px;
}

.hero-visual svg {
    width: 280px;
    height: auto;
    filter: drop-shadow(0 8px 20px rgba(240, 184, 48, 0.2));
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.carousel-controls {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 14px;
    z-index: 5;
}

.carousel-dot {
    width: 12px;
    height: 12px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.3);
    border: none;
    cursor: pointer;
    transition: all var(--transition-smooth);
}

.carousel-dot.active {
    background: linear-gradient(90deg, #f0b830, #f5d76e);
    width: 32px;
}

.carousel-dot:hover {
    background: rgba(255, 255, 255, 0.5);
}

/* ===== 通用Section ===== */
.section {
    padding: 80px 0;
}

.section-title {
    font-size: 2.4rem;
    font-weight: 600;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
    line-height: 1.3;
}

.section-sub {
    color: #5b6f88;
    max-width: 720px;
    margin-bottom: 48px;
    font-size: 1.1rem;
    line-height: 1.7;
}

body.dark .section-sub {
    color: #9aadc7;
}

/* ===== 网格系统 ===== */
.grid-4 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

/* ===== 卡片 ===== */
.card {
    padding: 28px 22px;
    background: white;
    border-radius: var(--radius-md);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02);
    transition: transform var(--transition-fast), box-shadow var(--transition-smooth);
    border: 1px solid transparent;
}

body.dark .card {
    background: #141f33;
    border-color: rgba(255, 255, 255, 0.04);
}

.card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: rgba(240, 184, 48, 0.1);
}

.card h3 {
    font-size: 1.4rem;
    margin: 16px 0 8px;
    font-weight: 600;
}

.card p {
    color: #4a5b72;
    line-height: 1.7;
    font-size: 0.95rem;
}

body.dark .card p {
    color: #b0c4dd;
}

.card time {
    display: block;
    color: #8a9bb0;
    font-size: 0.85rem;
    margin-bottom: 8px;
}

.card a {
    color: #f0b830;
    font-weight: 500;
    display: inline-block;
    margin-top: 8px;
    transition: color var(--transition-fast);
}

.card a:hover {
    color: #e5a020;
}

/* 数字统计 */
.stat-number {
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(145deg, #f0b830, #e5a020);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    line-height: 1.2;
}

/* ===== FAQ折叠 ===== */
.faq-item {
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding: 18px 0;
    transition: border-color var(--transition-fast);
}

body.dark .faq-item {
    border-color: rgba(255, 255, 255, 0.06);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    font-size: 1.2rem;
    cursor: pointer;
    user-select: none;
    transition: color var(--transition-fast);
    padding: 4px 0;
}

.faq-question:hover {
    color: #f0b830;
}

.faq-question span {
    font-size: 1.6rem;
    transition: transform var(--transition-smooth);
    color: #f0b830;
    line-height: 1;
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.3s ease, opacity 0.3s ease;
    padding-top: 0;
    color: #4a5b72;
    opacity: 0;
    line-height: 1.7;
}

body.dark .faq-answer {
    color: #b0c4dd;
}

.faq-item.open .faq-answer {
    max-height: 300px;
    padding-top: 16px;
    opacity: 1;
}

/* ===== 页脚 ===== */
.footer {
    background: #0b1a33;
    color: #cbd6e6;
    padding: 48px 0 24px;
    position: relative;
}

body.dark .footer {
    background: var(--brand-dark);
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(240, 184, 48, 0.3), transparent);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 32px;
}

.footer h4 {
    color: #f0f4fa;
    font-size: 1.1rem;
    margin-bottom: 12px;
    font-weight: 600;
}

.footer a {
    color: #b6c8e0;
    display: block;
    margin: 6px 0;
    transition: color var(--transition-fast), padding-left var(--transition-fast);
    font-size: 0.9rem;
}

.footer a:hover {
    color: #f0c040;
    padding-left: 4px;
}

.footer span {
    display: block;
    margin: 4px 0;
    font-size: 0.9rem;
}

.footer-copy {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    margin-top: 36px;
    padding-top: 24px;
    text-align: center;
    font-size: 0.9rem;
    color: #8a9bb0;
}

.footer-copy span {
    display: inline;
}

/* ===== 返回顶部 ===== */
.back-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: linear-gradient(135deg, #f0b830, #e5a020);
    color: #0b1a33;
    width: 48px;
    height: 48px;
    border-radius: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
    cursor: pointer;
    opacity: 0;
    transition: all var(--transition-smooth);
    pointer-events: none;
    z-index: 99;
    border: none;
}

.back-top.show {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.back-top:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 10px 24px rgba(240, 184, 48, 0.4);
}

.back-top:active {
    transform: scale(0.95);
}

/* ===== 联系区域 ===== */
#contact .glass-card,
#contact [style*="background"] {
    background: var(--glass-bg) !important;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    border: 1px solid var(--glass-border);
}

/* ===== HowTo 区域 ===== */
#howto .glass-card h3 {
    color: #f0b830;
    margin-top: 20px;
    font-size: 1.2rem;
}

#howto .glass-card h3:first-child {
    margin-top: 0;
}

#howto .glass-card p {
    margin-bottom: 12px;
    line-height: 1.8;
}

/* ===== 响应式设计 ===== */
@media (max-width: 1024px) {
    .section {
        padding: 64px 0;
    }
    
    .hero-content h1 {
        font-size: clamp(2rem, 5vw, 3.2rem);
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .header-inner {
        padding: 8px 0;
    }
    
    .hero-slide {
        flex-direction: column;
        text-align: center;
        padding: 40px 20px;
        min-height: 400px;
    }
    
    .hero-visual svg {
        width: 200px;
    }
    
    .hero-content p {
        margin-left: auto;
        margin-right: auto;
    }
    
    .section {
        padding: 48px 0;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .section-sub {
        font-size: 1rem;
        margin-bottom: 32px;
    }
    
    .grid-4,
    .grid-3,
    .grid-2 {
        gap: 16px;
    }
    
    .card {
        padding: 20px 16px;
    }
    
    .footer-grid {
        gap: 24px;
        text-align: center;
    }
    
    .search-sim {
        display: none;
    }
    
    .header-actions {
        gap: 8px;
    }
    
    .back-top {
        bottom: 20px;
        right: 20px;
        width: 42px;
        height: 42px;
        font-size: 22px;
    }
}

@media (min-width: 769px) {
    .mobile-nav {
        display: none !important;
    }
}

@media (max-width: 480px) {
    .hero-slide {
        min-height: 360px;
        padding: 32px 16px;
    }
    
    .hero-content h1 {
        font-size: 1.8rem;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
    
    .hero-visual svg {
        width: 160px;
    }
    
    .container {
        padding: 0 16px;
    }
    
    .section {
        padding: 40px 0;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .btn {
        padding: 10px 22px;
        font-size: 0.85rem;
    }
    
    .stat-number {
        font-size: 2.2rem;
    }
    
    .faq-question {
        font-size: 1rem;
    }
}

/* ===== 打印样式 ===== */
@media print {
    .header,
    .back-top,
    .mobile-menu-btn,
    .dark-toggle,
    .carousel-controls {
        display: none !important;
    }
    
    .hero-carousel {
        min-height: auto;
        background: #0b1a33 !important;
    }
    
    .hero-slide {
        min-height: auto;
        padding: 40px 20px;
    }
    
    .card,
    .glass-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ddd;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .section {
        padding: 30px 0;
        page-break-inside: avoid;
    }
}

/* ===== 辅助功能 ===== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .reveal {
        opacity: 1;
        transform: none;
    }
}

/* ===== 品牌强调色 ===== */
::selection {
    background: rgba(240, 184, 48, 0.3);
    color: #0b1a33;
}

body.dark ::selection {
    background: rgba(240, 184, 48, 0.4);
    color: white;
}

/* ===== 滚动条美化 ===== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(240, 184, 48, 0.3);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(240, 184, 48, 0.5);
}

body.dark ::-webkit-scrollbar-thumb {
    background: rgba(240, 184, 48, 0.2);
}

body.dark ::-webkit-scrollbar-thumb:hover {
    background: rgba(240, 184, 48, 0.4);
}