/* ============ 基础重置与变量 ============ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #111119;
    --bg-card: #181825;
    --bg-card-hover: #1e1e30;
    --gold: #c9a55e;
    --gold-light: #e8c97a;
    --gold-dark: #8b6914;
    --red: #c0392b;
    --red-light: #e74c3c;
    --red-dark: #7b1f1a;
    --text-primary: #e8e0d0;
    --text-secondary: #a09888;
    --text-muted: #706858;
    --border: #2a2835;
    --border-gold: rgba(201, 165, 94, 0.3);
    --shadow-gold: 0 0 30px rgba(201, 165, 94, 0.15);
    --shadow-red: 0 0 20px rgba(192, 57, 43, 0.2);
    --gradient-dark: linear-gradient(180deg, #0a0a0f 0%, #111119 50%, #0a0a0f 100%);
    --gradient-gold: linear-gradient(135deg, #c9a55e 0%, #e8c97a 50%, #c9a55e 100%);
    --gradient-red: linear-gradient(135deg, #7b1f1a 0%, #c0392b 50%, #7b1f1a 100%);
    --gradient-hero: linear-gradient(180deg, rgba(10,10,15,0.3) 0%, rgba(10,10,15,0.7) 50%, rgba(10,10,15,1) 100%);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Noto Sans SC', 'Noto Serif SC', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* ============ 滚动条 ============ */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}
::-webkit-scrollbar-thumb {
    background: var(--gold-dark);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--gold);
}

/* ============ 导航栏 ============ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 0 20px;
    transition: var(--transition);
    backdrop-filter: blur(0px);
}

.navbar.scrolled {
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-gold);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-icon {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    border: 2px solid var(--gold);
    box-shadow: 0 0 15px rgba(201, 165, 94, 0.3);
    object-fit: cover;
}

.logo-text {
    font-family: 'Noto Serif SC', serif;
    font-size: 1.4rem;
    font-weight: 900;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 4px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 8px;
}

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 8px 18px;
    border-radius: 20px;
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--gold-light);
    background: rgba(201, 165, 94, 0.1);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.nav-toggle span {
    width: 26px;
    height: 2px;
    background: var(--gold);
    border-radius: 2px;
    transition: var(--transition);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ============ 英雄区 ============ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background:
        radial-gradient(ellipse at 50% 0%, rgba(201, 165, 94, 0.08) 0%, transparent 60%),
        radial-gradient(ellipse at 20% 50%, rgba(192, 57, 43, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 50%, rgba(139, 105, 20, 0.05) 0%, transparent 50%),
        var(--gradient-dark);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    background: url('images/banner/banner1fbfe47479d4862d325033448f5e7f5b17851385170.jpg') center/cover no-repeat;
    animation: heroBgZoom 20s ease-in-out infinite alternate;
}

.hero-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        rgba(10, 10, 15, 0.4) 0%,
        rgba(10, 10, 15, 0.65) 40%,
        rgba(10, 10, 15, 0.9) 80%,
        rgba(10, 10, 15, 1) 100%
    );
}

@keyframes heroBgZoom {
    0% {
        transform: scale(1);
    }
    100% {
        transform: scale(1.08);
    }
}

.hero-particles {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--gold);
    border-radius: 50%;
    animation: floatUp linear infinite;
    opacity: 0;
}

@keyframes floatUp {
    0% {
        transform: translateY(100vh) scale(0);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100px) scale(1.5);
        opacity: 0;
    }
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background:
        url("data:image/svg+xml,%3Csvg width='60' height='60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 5 L32 28 L55 30 L32 32 L30 55 L28 32 L5 30 L28 28 Z' fill='rgba(201,165,94,0.03)'/%3E%3C/svg%3E") repeat;
    animation: bgScroll 60s linear infinite;
}

@keyframes bgScroll {
    from { background-position: 0 0; }
    to { background-position: 60px 60px; }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 40px 20px;
    max-width: 800px;
    animation: fadeInUp 1s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-badge {
    display: inline-block;
    margin-bottom: 28px;
}

.badge-glow {
    display: inline-block;
    padding: 8px 24px;
    background: rgba(201, 165, 94, 0.1);
    border: 1px solid var(--border-gold);
    border-radius: 30px;
    color: var(--gold-light);
    font-size: 0.9rem;
    letter-spacing: 3px;
    animation: pulseGlow 3s ease-in-out infinite;
}

@keyframes pulseGlow {
    0%, 100% { box-shadow: 0 0 5px rgba(201, 165, 94, 0.2); }
    50% { box-shadow: 0 0 25px rgba(201, 165, 94, 0.4); }
}

.hero-title {
    margin-bottom: 20px;
    font-family: 'Noto Serif SC', serif;
}

.title-line {
    display: block;
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 900;
    letter-spacing: 8px;
    line-height: 1.3;
    color: var(--text-primary);
}

.title-line.accent {
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: clamp(1.8rem, 4.5vw, 3rem);
    text-shadow: none;
}

.hero-desc {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 36px;
    letter-spacing: 2px;
}

.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 48px;
    position: relative;
}

/* 首屏下载按钮 QR 浮窗 */
.hero-qr-popup {
    position: absolute;
    bottom: calc(100% + 14px);
    left: 0;
    background: rgba(20, 20, 30, 0.97);
    border: 1px solid var(--border-gold);
    border-radius: var(--radius-md);
    padding: 16px;
    text-align: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
    z-index: 100;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
    pointer-events: none;
}

.hero-qr-popup.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.hero-qr-popup canvas,
.hero-qr-popup img {
    display: block;
    width: 140px;
    height: 140px;
    border-radius: 8px;
    background: #fff;
    padding: 6px;
}

.hero-qr-popup p {
    color: var(--text-secondary);
    font-size: 0.8rem;
    margin-top: 8px;
    letter-spacing: 1px;
}

.btn-primary,
.btn-secondary {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 36px;
    border-radius: 30px;
    font-size: 1.05rem;
    font-weight: 700;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    letter-spacing: 1px;
}

.btn-primary {
    background: var(--gradient-red);
    color: #fff;
    border: none;
    box-shadow: 0 4px 20px rgba(192, 57, 43, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(192, 57, 43, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--gold-light);
    border: 2px solid var(--border-gold);
}

.btn-secondary:hover {
    background: rgba(201, 165, 94, 0.1);
    transform: translateY(-3px);
    border-color: var(--gold);
}

/* ============ 倒计时 ============ */
.hero-countdown {
    margin-top: 8px;
}

.countdown-title {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 12px;
    letter-spacing: 3px;
}

.countdown-timer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin-bottom: 12px;
}

.count-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 70px;
}

.count-num {
    display: block;
    font-family: 'Noto Serif SC', serif;
    font-size: 2.5rem;
    font-weight: 900;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.count-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 4px;
    letter-spacing: 2px;
}

.count-sep {
    font-size: 2rem;
    color: var(--gold);
    font-weight: 300;
    margin-top: -8px;
}

.launch-date {
    color: var(--text-muted);
    font-size: 0.85rem;
    letter-spacing: 1px;
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.8rem;
    letter-spacing: 2px;
    animation: bounceDown 2s ease-in-out infinite;
    z-index: 2;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid var(--gold);
    border-bottom: 2px solid var(--gold);
    transform: rotate(45deg);
    animation: arrowDown 2s ease-in-out infinite;
}

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

@keyframes arrowDown {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 1; }
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ============ 通用区域样式 ============ */
section {
    padding: 100px 20px;
    position: relative;
}

section:nth-child(even) {
    background: var(--bg-secondary);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-family: 'Noto Serif SC', serif;
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    font-weight: 900;
    color: var(--text-primary);
    letter-spacing: 6px;
    margin-bottom: 16px;
}

.title-decor {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
}

.decor-line {
    display: block;
    width: 60px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--gold), transparent);
}

.decor-diamond {
    color: var(--gold);
    font-size: 0.7rem;
    animation: rotateDiamond 4s linear infinite;
}

@keyframes rotateDiamond {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ============ 游戏简介 ============ */
.intro-content {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.intro-text {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 2;
}

.intro-text p {
    margin-bottom: 16px;
}

.intro-text strong {
    color: var(--gold-light);
    font-weight: 600;
}

.intro-banners {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-gold);
    border: 1px solid var(--border-gold);
}

.banner-slider {
    overflow: hidden;
    border-radius: var(--radius-lg);
}

.banner-track {
    display: flex;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.banner-img {
    min-width: 100%;
    height: 300px;
    object-fit: cover;
    display: block;
}

.banner-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    padding: 16px;
    background: rgba(0, 0, 0, 0.5);
}

.banner-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(201, 165, 94, 0.3);
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.banner-dot.active {
    background: var(--gold);
    box-shadow: 0 0 10px rgba(201, 165, 94, 0.5);
    transform: scale(1.3);
}

/* ============ 下载模块 ============ */
.section-subtitle {
    color: var(--text-muted);
    font-size: 1rem;
    letter-spacing: 3px;
    margin-top: -12px;
}

.download-box {
    max-width: 650px;
    margin: 0 auto 50px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 40px;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.download-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #3ddc84, #007aff, #5ac8fa);
    transition: var(--transition);
}

.download-box:hover {
    border-color: var(--border-gold);
    box-shadow: var(--shadow-gold);
}

.download-box-header {
    margin-bottom: 28px;
}

.download-platform-icons {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 20px;
}

.platform-icon-circle {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.android-circle {
    background: linear-gradient(135deg, rgba(61, 220, 132, 0.15), rgba(76, 175, 80, 0.08));
    color: #3ddc84;
    border: 1px solid rgba(61, 220, 132, 0.3);
}

.ios-circle {
    background: linear-gradient(135deg, rgba(0, 122, 255, 0.15), rgba(90, 200, 250, 0.08));
    color: #5ac8fa;
    border: 1px solid rgba(0, 122, 255, 0.3);
}

.download-box h3 {
    font-family: 'Noto Serif SC', serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gold-light);
    margin-bottom: 8px;
    letter-spacing: 2px;
}

.download-version {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 16px;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 36px;
    border-radius: 30px;
    font-size: 1.05rem;
    font-weight: 700;
    text-decoration: none;
    letter-spacing: 2px;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    flex: 1;
    max-width: 240px;
}

.android-btn {
    background: linear-gradient(135deg, #3ddc84, #4caf50);
    color: #fff;
    box-shadow: 0 4px 20px rgba(61, 220, 132, 0.3);
}

.android-btn:hover {
    box-shadow: 0 8px 30px rgba(61, 220, 132, 0.5);
    transform: translateY(-2px);
}

.ios-btn {
    background: linear-gradient(135deg, #007aff, #5ac8fa);
    color: #fff;
    box-shadow: 0 4px 20px rgba(0, 122, 255, 0.3);
}

.ios-btn:hover {
    box-shadow: 0 8px 30px rgba(0, 122, 255, 0.5);
    transform: translateY(-2px);
}

.download-tip {
    color: var(--text-muted);
    font-size: 0.78rem;
    letter-spacing: 1px;
}

/* 二维码区域 */
.download-qr {
    display: flex;
    justify-content: center;
}

.qr-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 30px 40px;
    text-align: center;
    transition: var(--transition);
}

.qr-card:hover {
    border-color: var(--border-gold);
    box-shadow: var(--shadow-gold);
}

.qr-placeholder {
    display: inline-block;
    padding: 8px;
    background: #fff;
    border-radius: 12px;
    margin-bottom: 16px;
    color: var(--bg-primary);
}

.qr-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    letter-spacing: 1px;
}

.qr-tip {
    color: var(--text-muted) !important;
    font-size: 0.78rem !important;
    margin-top: 4px;
}

/* 下载按钮点击反馈 */
.download-btn:active {
    transform: scale(0.96);
}

/* 移动端按钮垂直排列 */
@media (max-width: 768px) {
    .download-box {
        padding: 30px 24px;
    }

    .download-buttons {
        flex-direction: column;
        align-items: center;
    }

    .download-btn {
        width: 100%;
    }
}

/* ============ 游戏特色 ============ */
.features-grid {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: var(--transition);
    text-align: center;
    padding: 40px 24px 30px;
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: var(--border-gold);
    box-shadow: var(--shadow-gold);
    background: var(--bg-card-hover);
}

.feature-circle {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(201, 165, 94, 0.15), rgba(201, 165, 94, 0.05));
    border: 2px solid var(--border-gold);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 20px;
    transition: var(--transition);
}

.feature-card:hover .feature-circle {
    background: linear-gradient(135deg, rgba(201, 165, 94, 0.25), rgba(201, 165, 94, 0.1));
    box-shadow: 0 0 25px rgba(201, 165, 94, 0.2);
    transform: scale(1.05);
}

.feature-card h3 {
    font-family: 'Noto Serif SC', serif;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gold-light);
    margin-bottom: 10px;
    letter-spacing: 2px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.8;
}

/* ============ 游戏截图轮播 ============ */
.screenshot-carousel {
    max-width: 1100px;
    margin: 0 auto 24px;
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-gold);
    box-shadow: var(--shadow-gold);
    aspect-ratio: 1751 / 984;
}

.screenshot-slides {
    display: flex;
    height: 100%;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.screenshot-slide {
    min-width: 100%;
    height: 100%;
}

.screenshot-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* 左右箭头 */
.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(10, 10, 15, 0.7);
    border: 1px solid var(--border-gold);
    color: var(--gold-light);
    font-size: 1.3rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 5;
    backdrop-filter: blur(8px);
}

.carousel-btn:hover {
    background: rgba(201, 165, 94, 0.2);
    box-shadow: 0 0 20px rgba(201, 165, 94, 0.3);
}

.carousel-prev { left: 16px; }
.carousel-next { right: 16px; }

/* 圆点指示器 */
.carousel-dots {
    position: absolute;
    bottom: 14px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 5;
}

.carousel-dots .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.carousel-dots .dot.active {
    background: var(--gold);
    box-shadow: 0 0 8px rgba(201, 165, 94, 0.6);
    transform: scale(1.3);
}

/* 缩略图条 */
.screenshot-thumbnails {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    gap: 10px;
    overflow-x: auto;
    padding-bottom: 8px;
    scrollbar-width: thin;
    scrollbar-color: var(--gold-dark) transparent;
}

.screenshot-thumbnails::-webkit-scrollbar {
    height: 4px;
}
.screenshot-thumbnails::-webkit-scrollbar-thumb {
    background: var(--gold-dark);
    border-radius: 2px;
}

.thumb-item {
    flex-shrink: 0;
    width: 140px;
    aspect-ratio: 1751 / 984;
    border-radius: 8px;
    overflow: hidden;
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    opacity: 0.55;
}

.thumb-item:hover,
.thumb-item.active {
    border-color: var(--gold);
    opacity: 1;
    box-shadow: 0 0 12px rgba(201, 165, 94, 0.3);
}

.thumb-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

@media (max-width: 768px) {
    .carousel-btn {
        width: 36px;
        height: 36px;
        font-size: 1rem;
    }
    .carousel-prev { left: 8px; }
    .carousel-next { right: 8px; }
    .thumb-item {
        width: 100px;
    }
    .carousel-dots {
        bottom: 10px;
        gap: 6px;
    }
    .carousel-dots .dot {
        width: 8px;
        height: 8px;
    }
}

/* ============ 福利区域 ============ */
.bonus-grid {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 50px;
}

.bonus-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px 24px;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.bonus-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-gold);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.bonus-card:hover::before {
    transform: scaleX(1);
}

.bonus-card:hover {
    border-color: var(--border-gold);
    transform: translateY(-4px);
    box-shadow: var(--shadow-gold);
}

.bonus-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
    display: block;
}

.bonus-card h3 {
    font-family: 'Noto Serif SC', serif;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--gold-light);
    margin-bottom: 10px;
    letter-spacing: 2px;
}

.bonus-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

.bonus-highlight {
    max-width: 700px;
    margin: 0 auto;
    background: linear-gradient(135deg, rgba(192, 57, 43, 0.15) 0%, rgba(201, 165, 94, 0.1) 100%);
    border: 1px solid var(--red);
    border-radius: var(--radius-xl);
    padding: 36px;
    text-align: center;
}

.highlight-badge {
    display: inline-block;
    background: var(--gradient-red);
    color: #fff;
    font-size: 1.5rem;
    font-weight: 900;
    padding: 8px 28px;
    border-radius: 30px;
    margin-bottom: 16px;
    letter-spacing: 3px;
    box-shadow: 0 4px 20px rgba(192, 57, 43, 0.4);
}

.highlight-content h3 {
    font-family: 'Noto Serif SC', serif;
    font-size: 1.4rem;
    color: var(--gold-light);
    margin-bottom: 10px;
    letter-spacing: 3px;
}

.highlight-content p {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.8;
}

.highlight-content strong {
    color: var(--gold-light);
    font-size: 1.3rem;
}

/* ============ 视频区域 ============ */
.videos-grid {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.video-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.video-card:hover {
    border-color: var(--border-gold);
    box-shadow: var(--shadow-gold);
}

.video-wrapper {
    aspect-ratio: 16/9;
    overflow: hidden;
}

.video-wrapper video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.video-card h4 {
    font-family: 'Noto Serif SC', serif;
    font-size: 1.1rem;
    color: var(--gold-light);
    text-align: center;
    padding: 16px;
    letter-spacing: 2px;
}

/* ============ 攻略区域 ============ */
/* ============ FAQ攻略区 ============ */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: var(--transition);
}

.faq-item:hover {
    border-color: var(--border-gold);
}

.faq-item.active {
    border-color: var(--border-gold);
    box-shadow: 0 0 20px rgba(201, 165, 94, 0.1);
}

.faq-question {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 18px 24px;
    cursor: pointer;
    user-select: none;
    transition: var(--transition);
}

.faq-question:hover {
    background: rgba(201, 165, 94, 0.05);
}

.faq-num {
    font-family: 'Noto Serif SC', serif;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--gold);
    min-width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-gold);
    border-radius: 8px;
    background: rgba(201, 165, 94, 0.08);
    flex-shrink: 0;
}

.faq-qtext {
    flex: 1;
    color: var(--text-primary);
    font-size: 0.95rem;
    line-height: 1.5;
    letter-spacing: 1px;
    min-width: 0;
}

.faq-item.active .faq-qtext {
    color: var(--gold-light);
}

.faq-arrow {
    color: var(--text-muted);
    font-size: 1rem;
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.faq-item.active .faq-arrow {
    transform: rotate(180deg);
    color: var(--gold);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 300px;
}

.faq-answer p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.9;
    padding: 0 24px 20px 74px;
    letter-spacing: 0.5px;
}

/* 加载更多 */
.faq-more {
    text-align: center;
    margin-top: 30px;
}

.faq-load-btn {
    background: transparent;
    border: 1px solid var(--border-gold);
    color: var(--gold-light);
    padding: 12px 36px;
    border-radius: 30px;
    font-size: 0.95rem;
    cursor: pointer;
    letter-spacing: 2px;
    transition: var(--transition);
    font-family: 'Noto Serif SC', serif;
}

.faq-load-btn:hover {
    background: rgba(201, 165, 94, 0.1);
    box-shadow: 0 0 20px rgba(201, 165, 94, 0.15);
    transform: translateY(-2px);
}

.faq-load-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
}

@media (max-width: 768px) {
    .faq-question {
        padding: 14px 16px;
        gap: 10px;
    }
    .faq-num {
        font-size: 0.9rem;
        min-width: 30px;
        height: 30px;
    }
    .faq-qtext {
        font-size: 0.88rem;
    }
    .faq-answer p {
        padding: 0 16px 16px 56px;
        font-size: 0.85rem;
    }
}

/* ============ 页脚 ============ */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-gold);
    padding: 60px 20px 30px;
    text-align: center;
}

.footer-content {
    max-width: 800px;
    margin: 0 auto 40px;
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 60px;
    text-align: left;
}

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

.footer-logo img {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    border: 2px solid var(--gold);
    margin-bottom: 12px;
}

.footer-logo h3 {
    font-family: 'Noto Serif SC', serif;
    font-size: 1.3rem;
    color: var(--gold-light);
    margin-bottom: 4px;
    letter-spacing: 2px;
}

.footer-logo p {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.footer-info {
    display: flex;
    flex-direction: column;
    gap: 16px;
    justify-content: center;
}

.info-item {
    display: flex;
    gap: 16px;
    align-items: center;
}

.info-label {
    color: var(--text-muted);
    font-size: 0.9rem;
    min-width: 80px;
    letter-spacing: 1px;
}

.info-value {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* 友情链接 */
.footer-links {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    padding: 20px 0;
    border-top: 1px solid var(--border);
    flex-wrap: wrap;
}

.footer-links .links-label {
    color: var(--text-muted);
    font-size: 0.85rem;
    letter-spacing: 1px;
    white-space: nowrap;
}

.footer-links .links-list {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    justify-content: center;
}

.footer-links .links-list a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.85rem;
    letter-spacing: 1px;
    transition: var(--transition);
    white-space: nowrap;
}

.footer-links .links-list a:hover {
    color: var(--gold-light);
    text-decoration: underline;
}

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.85rem;
    letter-spacing: 1px;
}

.footer-bottom .copyright {
    margin-top: 4px;
    font-size: 0.8rem;
    opacity: 0.6;
}

/* ============ 返回顶部 ============ */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(201, 165, 94, 0.2);
    border: 1px solid var(--border-gold);
    color: var(--gold);
    font-size: 1.2rem;
    cursor: pointer;
    z-index: 999;
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: rgba(201, 165, 94, 0.3);
    box-shadow: 0 0 20px rgba(201, 165, 94, 0.3);
}

/* ============ 移动端悬浮下载条 ============ */
.mobile-download-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 998;
    background: rgba(10, 10, 15, 0.97);
    backdrop-filter: blur(20px);
    border-top: 1px solid var(--border-gold);
    padding: 12px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    transform: translateY(100%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-download-bar.visible {
    transform: translateY(0);
}

.mobile-dl-info {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
    min-width: 0;
}

.mobile-dl-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    border: 2px solid var(--gold);
    flex-shrink: 0;
    object-fit: cover;
}

.mobile-dl-info strong {
    display: block;
    font-family: 'Noto Serif SC', serif;
    font-size: 0.95rem;
    color: var(--gold-light);
    letter-spacing: 1px;
}

.mobile-dl-info span {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.mobile-dl-btn {
    flex-shrink: 0;
    padding: 10px 24px;
    background: var(--gradient-red);
    color: #fff;
    border-radius: 24px;
    font-weight: 700;
    font-size: 0.95rem;
    text-decoration: none;
    letter-spacing: 1px;
    box-shadow: 0 4px 15px rgba(192, 57, 43, 0.4);
    transition: var(--transition);
    white-space: nowrap;
}

.mobile-dl-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(192, 57, 43, 0.6);
}

/* 桌面端隐藏悬浮条 */
@media (min-width: 769px) {
    .mobile-download-bar {
        display: none;
    }
}

/* ============ 动画 ============ */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* ============ 响应式设计 ============ */
@media (max-width: 1024px) {
    .intro-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: rgba(10, 10, 15, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 100px 40px;
        gap: 0;
        transition: var(--transition);
        border-left: 1px solid var(--border-gold);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-menu a {
        display: block;
        padding: 16px 0 16px 24px;
        font-size: 1.1rem;
        border-bottom: 1px solid var(--border);
    }

    .nav-toggle {
        display: flex;
    }

    .hero-title {
        font-size: clamp(1.5rem, 6vw, 2rem);
    }

    .title-line.accent {
        font-size: clamp(1.3rem, 5vw, 1.8rem);
    }

    .countdown-timer {
        flex-wrap: wrap;
    }

    .count-item {
        min-width: 60px;
    }

    .count-num {
        font-size: 1.8rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
    }

    .bonus-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
    }

    .videos-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }

    .info-item {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    section {
        padding: 60px 16px;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
        max-width: 260px;
        justify-content: center;
    }

    .bonus-highlight {
        padding: 24px 20px;
    }

    .section-title {
        letter-spacing: 3px;
    }
}