/* ========================================
   都市修仙传 - 官网样式
   国风修仙主题
======================================== */

/* CSS 变量定义 */
:root {
    /* 主色调 - 与游戏UI一致 */
    --color-bg: #F5F0E1;
    --color-bg-light: #FAF7ED;
    --color-primary: #D4A84B;
    --color-primary-dark: #B8923F;
    --color-secondary: #5B9BD5;
    --color-accent: #8B7355;
    --color-text: #5C4B37;
    --color-text-light: #8B7355;
    --color-text-muted: #A09080;
    --color-border: #E5DDD0;
    --color-card: #FFFFFF;
    
    /* 渐变 */
    --gradient-gold: linear-gradient(135deg, #D4A84B 0%, #E8C547 50%, #D4A84B 100%);
    --gradient-hero: linear-gradient(180deg, #F5F0E1 0%, #E8E0D0 100%);
    
    /* 阴影 */
    --shadow-sm: 0 2px 8px rgba(92, 75, 55, 0.08);
    --shadow-md: 0 4px 16px rgba(92, 75, 55, 0.12);
    --shadow-lg: 0 8px 32px rgba(92, 75, 55, 0.16);
    
    /* 圆角 */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    
    /* 过渡 */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Serif SC', 'PingFang SC', 'Microsoft YaHei', serif;
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ========================================
   导航栏
======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(245, 240, 225, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    transition: var(--transition-normal);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    font-size: 28px;
    color: var(--color-primary);
}

.logo-img {
    height: 40px;
    width: auto;
    border-radius: 8px;
}

.logo-text {
    font-size: 22px;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: 2px;
}

.nav-menu {
    display: flex;
    gap: 40px;
}

.nav-menu a {
    font-size: 15px;
    color: var(--color-text-light);
    transition: var(--transition-fast);
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition-fast);
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--color-primary);
}

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

.download-btn {
    padding: 10px 24px;
    background: var(--gradient-gold);
    color: #fff;
    border: none;
    border-radius: 25px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
    box-shadow: 0 4px 12px rgba(212, 168, 75, 0.3);
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(212, 168, 75, 0.4);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 2px;
    background: var(--color-text);
    transition: var(--transition-fast);
}

/* ========================================
   Hero 首屏
======================================== */
.hero {
    min-height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    padding-top: 70px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: var(--gradient-hero);
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 60%;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23D4A84B' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
}

.clouds {
    position: absolute;
    top: 10%;
    left: 0;
    right: 0;
    height: 200px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 320'%3E%3Cpath fill='%23ffffff' fill-opacity='0.4' d='M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,154.7C960,171,1056,181,1152,165.3C1248,149,1344,107,1392,85.3L1440,64L1440,0L1392,0C1344,0,1248,0,1152,0C1056,0,960,0,864,0C768,0,672,0,576,0C480,0,384,0,288,0C192,0,96,0,48,0L0,0Z'%3E%3C/path%3E%3C/svg%3E") no-repeat center;
    background-size: cover;
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(-30px); }
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.game-title {
    margin-bottom: 24px;
}

.title-main {
    display: block;
    font-size: 56px;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: 8px;
    margin-bottom: 12px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
}

.title-sub {
    display: block;
    font-size: 24px;
    color: var(--color-primary);
    letter-spacing: 12px;
    font-weight: 400;
}

.hero-desc {
    font-size: 18px;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 32px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 40px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
    border: none;
}

.btn-primary {
    background: var(--gradient-gold);
    color: #fff;
    box-shadow: 0 4px 16px rgba(212, 168, 75, 0.35);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(212, 168, 75, 0.45);
}

.btn-secondary {
    background: #fff;
    color: var(--color-text);
    border: 2px solid var(--color-border);
}

.btn-secondary:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-3px);
}

.btn-large {
    padding: 16px 40px;
    font-size: 18px;
}

.hero-stats {
    display: flex;
    gap: 40px;
}

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

.stat-num {
    display: block;
    font-size: 28px;
    font-weight: 700;
    color: var(--color-primary);
}

.stat-label {
    font-size: 14px;
    color: var(--color-text-muted);
}

/* 手机 mockup */
.hero-image {
    display: flex;
    justify-content: center;
}

.phone-mockup {
    width: 280px;
    height: 560px;
    background: linear-gradient(145deg, #2a2a2a 0%, #1a1a1a 100%);
    border-radius: 40px;
    padding: 12px;
    box-shadow: 
        0 25px 50px rgba(0,0,0,0.2),
        0 0 0 2px rgba(255,255,255,0.1);
    position: relative;
    overflow: hidden;
}

.phone-mockup::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 20px;
    background: #1a1a1a;
    border-radius: 10px;
    z-index: 2;
}

.game-screenshot {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 32px;
    display: block;
}

/* 手机上下浮动动画 */
@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-15px);
    }
}

.phone-mockup {
    animation: float 3s ease-in-out infinite;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: var(--color-bg);
    border-radius: 32px;
    overflow: hidden;
    position: relative;
}

.screen-content {
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
}

.cultivator {
    position: relative;
}

.aura {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120px;
    height: 120px;
    background: radial-gradient(circle, rgba(212,168,75,0.3) 0%, transparent 70%);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
    50% { transform: translate(-50%, -50%) scale(1.2); opacity: 0.8; }
}

.figure {
    font-size: 80px;
    position: relative;
    z-index: 1;
}

.floating-icons {
    position: absolute;
    inset: 20px;
}

.floating-icons .icon {
    position: absolute;
    font-size: 24px;
    animation: float-icon 3s ease-in-out infinite;
}

.floating-icons .icon:nth-child(1) {
    top: 20%;
    left: 15%;
    animation-delay: 0s;
}

.floating-icons .icon:nth-child(2) {
    top: 60%;
    right: 15%;
    animation-delay: 1s;
}

.floating-icons .icon:nth-child(3) {
    bottom: 25%;
    left: 20%;
    animation-delay: 2s;
}

@keyframes float-icon {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--color-text-muted);
    font-size: 12px;
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid var(--color-text-muted);
    border-bottom: 2px solid var(--color-text-muted);
    transform: rotate(45deg);
    margin: 10px auto 0;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

/* ========================================
   通用区块样式
======================================== */
section {
    padding: 100px 0;
}

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

.section-tag {
    display: inline-block;
    font-size: 12px;
    color: var(--color-primary);
    letter-spacing: 4px;
    margin-bottom: 12px;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 12px;
    letter-spacing: 4px;
}

.section-desc {
    font-size: 16px;
    color: var(--color-text-muted);
}

/* ========================================
   游戏特色
======================================== */
.features {
    background: var(--color-bg-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

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

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

.feature-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, rgba(212,168,75,0.1) 0%, rgba(212,168,75,0.05) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-size: 32px;
    border: 2px solid rgba(212,168,75,0.2);
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--color-text);
}

.feature-card p {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ========================================
   游戏截图
======================================== */
.screenshots-slider {
    position: relative;
    overflow: hidden;
}

.screenshots-track {
    display: flex;
    gap: 30px;
    transition: transform 0.5s ease;
}

.screenshot-item {
    flex: 0 0 calc(33.333% - 20px);
    background: linear-gradient(145deg, #E8E0D0 0%, #D5CDBF 100%);
    border-radius: var(--radius-md);
    border: 2px solid var(--color-border);
    transition: var(--transition-normal);
    overflow: hidden;
}

.screenshot-item:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-md);
}

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

.screenshot-caption {
    padding: 16px;
    text-align: center;
    background: var(--color-bg);
}

.screenshot-caption span {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text);
    display: block;
    margin-bottom: 4px;
}

.screenshot-caption small {
    font-size: 13px;
    color: var(--color-text-muted);
}

.slider-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-top: 40px;
}

.slider-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 2px solid var(--color-border);
    background: #fff;
    color: var(--color-text);
    font-size: 20px;
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.slider-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.slider-dots {
    display: flex;
    gap: 10px;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-border);
    cursor: pointer;
    transition: var(--transition-fast);
}

.dot.active {
    background: var(--color-primary);
    width: 30px;
    border-radius: 5px;
}

/* ========================================
   修仙境界
======================================== */
.cultivation {
    background: linear-gradient(180deg, var(--color-bg) 0%, #EDE8D8 100%);
}

.realm-timeline {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 900px;
    margin: 0 auto;
}

.realm-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    background: var(--color-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    transition: var(--transition-normal);
}

.realm-item:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
}

.realm-icon {
    font-size: 28px;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(212,168,75,0.1) 0%, transparent 100%);
    border-radius: 50%;
}

.realm-info h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 4px;
}

.realm-info p {
    font-size: 13px;
    color: var(--color-text-muted);
}

/* ========================================
   新闻公告
======================================== */
.news {
    background: var(--color-bg-light);
}

.news-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.news-card {
    background: var(--color-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-border);
    transition: var(--transition-normal);
    position: relative;
}

.news-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.news-card.featured {
    grid-row: span 2;
    position: relative;
}

.news-badge {
    display: inline-block;
    background: var(--color-primary);
    color: #fff;
    padding: 2px 8px;
    border-radius: 8px;
    font-size: 11px;
    font-weight: 600;
    margin-right: 6px;
    vertical-align: middle;
}

.news-content {
    padding: 30px;
}

.news-card.featured .news-content {
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

.news-date {
    font-size: 13px;
    color: var(--color-text-muted);
    margin-bottom: 12px;
    display: inline-block;
    vertical-align: middle;
}

.news-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 12px;
    line-height: 1.4;
}

.news-card.featured h3 {
    font-size: 22px;
}

.news-card p {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.6;
    margin-bottom: 16px;
}

.read-more {
    font-size: 14px;
    color: var(--color-primary);
    font-weight: 600;
    transition: var(--transition-fast);
}

.read-more:hover {
    color: var(--color-primary-dark);
}

/* ========================================
   CTA 下载区
======================================== */
.cta {
    background: linear-gradient(135deg, #5C4B37 0%, #3D3226 100%);
    color: #fff;
    text-align: center;
    padding: 80px 0;
}

.cta-content h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: 2px;
}

.cta-content p {
    font-size: 16px;
    opacity: 0.8;
    margin-bottom: 32px;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
}

.cta .btn-secondary {
    background: transparent;
    color: #fff;
    border-color: rgba(255,255,255,0.3);
}

.cta .btn-secondary:hover {
    background: rgba(255,255,255,0.1);
    border-color: #fff;
}

.qr-placeholder {
    width: 120px;
    height: 120px;
    background: #fff;
    border-radius: var(--radius-sm);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text);
    font-size: 12px;
}

.qr-image {
    width: 150px;
    height: 150px;
    border-radius: var(--radius-sm);
    margin: 0 auto 10px;
    display: block;
    box-shadow: var(--shadow-md);
}

/* ========================================
   页脚
======================================== */
.footer {
    background: #3D3226;
    color: rgba(255,255,255,0.7);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 60px;
    margin-bottom: 40px;
}

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

.footer-brand .logo-text {
    color: #fff;
}

.footer-brand p {
    font-size: 14px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.link-group h4 {
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 16px;
    letter-spacing: 1px;
}

.link-group ul li {
    margin-bottom: 10px;
}

.link-group ul li a {
    font-size: 14px;
    transition: var(--transition-fast);
}

.link-group ul li a:hover {
    color: var(--color-primary);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 30px;
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
}

/* ========================================
   响应式设计
======================================== */
@media (max-width: 992px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-image {
        order: -1;
    }
    
    .phone-mockup {
        width: 220px;
        height: 440px;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .screenshot-item {
        flex: 0 0 calc(50% - 15px);
    }
    
    .realm-timeline {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .news-card.featured {
        grid-row: auto;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .title-main {
        font-size: 36px;
    }
    
    .title-sub {
        font-size: 18px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .screenshot-item {
        flex: 0 0 100%;
    }
    
    .realm-timeline {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   二维码弹窗
======================================== */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(4px);
}

.modal-content {
    background: var(--color-bg);
    padding: 40px;
    border-radius: var(--radius-lg);
    text-align: center;
    max-width: 400px;
    width: 90%;
    position: relative;
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--color-primary);
}

.close-btn {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 28px;
    font-weight: bold;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: var(--transition-fast);
}

.close-btn:hover {
    color: var(--color-primary);
}

.modal-content h3 {
    font-size: 24px;
    color: var(--color-text);
    margin-bottom: 20px;
}

.qr-container {
    margin: 20px 0;
}

.qr-container img {
    max-width: 250px;
    width: 100%;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

.modal-content p {
    color: var(--color-text-light);
    font-size: 14px;
    margin-top: 15px;
}