/**
 * 闪客游戏加速器 - 官网首页样式
 */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: linear-gradient(135deg, #0f0f23 0%, #1a1a3e 50%, #0d1b2a 100%);
    color: #ffffff;
    min-height: 100vh;
    overflow-x: hidden;
}

.hero,
.download-section,
.announcements-section,
.features-section,
.platforms-section,
.footer {
    --home-accent: #00d4ff;
    --home-accent-2: #8b5cf6;
    --home-card-bg: rgba(255, 255, 255, 0.03);
    --home-card-border: rgba(255, 255, 255, 0.08);
    --home-text: #ffffff;
    --home-muted: rgba(255, 255, 255, 0.6);
}

/* ========== 导航栏 ========== */
.navbar {
    background: rgba(15, 15, 35, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
    padding: 16px 40px;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-brand {
    font-size: 24px;
    font-weight: 700;
    color: #00d4ff;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 0 1 auto;
    min-width: 0;
}

.navbar-brand-copy {
    display: flex;
    flex-direction: column;
    gap: 2px;
    line-height: 1.05;
    min-width: max-content;
}

.navbar-brand-title {
    color: #00d4ff;
    max-width: none;
    white-space: nowrap;
    overflow: visible;
    text-overflow: clip;
}

.navbar-brand-subtitle {
    font-size: 12px;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.62);
    max-width: 220px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.navbar-logo {
    height: 36px;
    width: auto;
    display: block;
}

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

.navbar-nav a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.navbar-nav a:hover {
    color: #00d4ff;
}

.navbar-nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #00d4ff;
    transition: width 0.3s ease;
}

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

.navbar-actions {
    display: flex;
    gap: 12px;
}

.nav-btn {
    padding: 10px 24px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
}

.nav-btn-login {
    background: transparent;
    color: rgba(255, 255, 255, 0.9);
    border: 2px solid rgba(0, 212, 255, 0.3);
}

.nav-btn-login:hover {
    background: rgba(0, 212, 255, 0.1);
    border-color: #00d4ff;
}

.nav-btn-register {
    background: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
    color: white;
    border: none;
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.3);
}

.nav-btn-register:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 212, 255, 0.4);
}

/* ========== 用户下拉菜单 ========== */
.user-nav-dropdown {
    position: relative;
}

.nav-user-info {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 16px;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 24px;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.nav-user-info:hover {
    background: var(--home-tag-bg, rgba(0, 212, 255, 0.15));
    border-color: rgba(0, 212, 255, 0.5);
}

.user-avatar-mini {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    overflow: hidden;
    background: rgba(0, 212, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.user-avatar-mini img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.user-avatar-mini i {
    font-size: 18px;
    color: #00d4ff;
}

.user-name {
    font-size: 14px;
    font-weight: 600;
    color: #ffffff;
    max-width: 100px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.nav-user-info .icon-arrow-down {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.6);
    transition: transform 0.3s ease;
}

.user-nav-dropdown:hover .icon-arrow-down {
    transform: rotate(180deg);
}

.user-dropdown-menu {
    position: absolute;
    top: calc(100% + 12px);
    right: 0;
    min-width: 180px;
    background: rgba(26, 26, 46, 0.98);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    overflow: hidden;
}

.user-nav-dropdown:hover .user-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.user-dropdown-menu a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.2s ease;
}

.user-dropdown-menu a i {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.5);
    transition: color 0.2s ease;
}

.user-dropdown-menu a:hover {
    background: rgba(0, 212, 255, 0.1);
    color: #00d4ff;
}

.user-dropdown-menu a:hover i {
    color: #00d4ff;
}

.dropdown-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
    margin: 4px 0;
}

.logout-link {
    color: #ff6b6b !important;
}

.logout-link:hover {
    background: rgba(255, 107, 107, 0.1) !important;
}

.logout-link i {
    color: #ff6b6b !important;
}

/* ========== 英雄区域 ========== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 40px 60px;
    position: relative;
    overflow: hidden;
    background: var(--home-section-bg, transparent);
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    max-width: 1200px;
    width: 100%;
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: var(--home-tag-bg, rgba(0, 212, 255, 0.15));
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--home-accent);
    margin-bottom: 24px;
}

.hero-badge i {
    font-size: 16px;
}

.hero h1 {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--home-text) 0%, var(--home-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero h1 span {
    background: linear-gradient(135deg, var(--home-accent) 0%, var(--home-accent-2) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 48px;
    max-width: 900px;
    line-height: 1.6;
    text-align: center;
    margin-left: auto;
    margin-right: auto;
    white-space: nowrap;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 32px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    color: rgba(255, 255, 255, 0.8);
}

.hero-feature i {
    color: var(--home-accent);
    font-size: 18px;
}

/* ========== 下载区域 ========== */
.download-section {
    max-width: 600px;
    margin: 0 auto;
}

.download-card {
    background: var(--home-card-bg, rgba(255, 255, 255, 0.05));
    border: 1px solid var(--home-card-border, rgba(255, 255, 255, 0.1));
    border-radius: 16px;
    padding: 32px;
    backdrop-filter: blur(10px);
}

.download-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.download-platform {
    display: flex;
    align-items: center;
    gap: 12px;
}

.download-platform-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #00d4ff 0%, #8b5cf6 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: #ffffff;
}

.download-platform-icon.pc {
    background: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
}

.download-platform-icon.mac {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.download-platform-icon.android {
    background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
}

.download-platform-icon.ios {
    background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
}

.download-platform-name {
    font-size: 18px;
    font-weight: 600;
    color: #ffffff;
}

.download-platform-version {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
}

.download-btn {
    width: 100%;
    padding: 18px;
    background: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.3);
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 212, 255, 0.4);
}

.download-btn i {
    font-size: 20px;
}

.download-info {
    margin-top: 16px;
    padding: 12px;
    background: rgba(0, 212, 255, 0.05);
    border-radius: 8px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.7);
    display: flex;
    justify-content: space-between;
}

.platform-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
    background: rgba(255, 255, 255, 0.05);
    padding: 6px;
    border-radius: 10px;
}

.platform-tab {
    flex: 1;
    padding: 12px 16px;
    background: transparent;
    border: none;
    border-radius: 8px;
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.platform-tab:hover {
    color: rgba(255, 255, 255, 0.9);
}

.platform-tab.active {
    background: rgba(0, 212, 255, 0.2);
    color: #00d4ff;
    font-weight: 600;
    border: 1px solid rgba(0, 212, 255, 0.3);
}

.platform-tab i {
    font-size: 16px;
}

.platform-tab-icon {
    width: 20px;
    height: 20px;
    display: block;
    object-fit: contain;
}

.coming-soon {
    text-align: center;
    padding: 40px 20px;
    color: rgba(255, 255, 255, 0.6);
}

.coming-soon i {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.coming-soon p {
    font-size: 16px;
}

.coming-soon small {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
}

/* ========== 特性区域 ========== */
.features-section {
    padding: 100px 40px;
    position: relative;
    background: var(--home-section-bg, transparent);
}

.features-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--home-accent), transparent);
    opacity: 0.3;
}

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

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: var(--home-tag-bg, rgba(0, 212, 255, 0.1));
    border-radius: 20px;
    font-size: 14px;
    color: var(--home-accent);
    margin-bottom: 20px;
}

.section-title {
    font-size: 42px;
    font-weight: 700;
    color: var(--home-text);
    margin-bottom: 16px;
}

.section-desc {
    font-size: 18px;
    color: var(--home-muted);
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: var(--home-card-bg);
    border: 1px solid var(--home-card-border);
    border-radius: 16px;
    padding: 32px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card.has-bg,
.platform-card.has-bg {
    background-image: linear-gradient(135deg, rgba(10, 14, 28, 0.9), rgba(10, 14, 28, 0.7)), var(--home-card-bg-image);
    background-size: cover;
    background-position: var(--home-card-bg-position, center);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--home-accent), var(--home-accent-2));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(0, 212, 255, 0.2);
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

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

.feature-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 28px;
}

.home-config-icon {
    background: linear-gradient(135deg, var(--home-accent) 0%, var(--home-accent-2) 100%);
    color: #ffffff;
}

.home-config-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    border-radius: inherit;
}

.feature-icon.smart {
    background: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
}

.feature-icon.fast {
    background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
}

.feature-icon.stable {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

.feature-icon.light {
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
}

.feature-icon.minimal {
    background: linear-gradient(135deg, #ec4899 0%, #db2777 100%);
}

.feature-icon.ai {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
}

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

.feature-card p {
    font-size: 15px;
    color: var(--home-muted);
    line-height: 1.6;
    margin-bottom: 16px;
}

.feature-card ul {
    list-style: none;
    padding: 0;
}

.feature-card li {
    font-size: 14px;
    color: var(--home-muted);
    padding: 8px 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.feature-card li::before {
    content: '✓';
    color: var(--home-accent);
    font-weight: bold;
}

/* ========== 平台支持区域 ========== */
.platforms-section {
    padding: 100px 40px;
    background: var(--home-section-bg, rgba(0, 0, 0, 0.2));
}

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

.platforms-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.platform-card {
    background: var(--home-card-bg);
    border: 1px solid var(--home-card-border);
    border-radius: 16px;
    padding: 32px 24px;
    text-align: center;
    transition: all 0.3s ease;
}

.platform-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(0, 212, 255, 0.2);
    transform: translateY(-3px);
}

.platform-icon {
    width: 72px;
    height: 72px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 32px;
}

.platform-icon.pc {
    background: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
}

.platform-icon.console {
    background: linear-gradient(135deg, #0055ff 0%, #003399 100%);
}

.platform-icon.mobile {
    background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
}

.platform-icon.web {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

.platform-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--home-text);
    margin-bottom: 8px;
}

.platform-card p {
    font-size: 14px;
    color: var(--home-muted);
}

.platform-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    justify-content: center;
    margin-top: 12px;
}

.platform-tag {
    padding: 4px 12px;
    background: rgba(0, 212, 255, 0.1);
    border-radius: 12px;
    font-size: 12px;
    color: var(--home-accent);
}

/* ========== 页脚 ========== */
.footer {
    background: var(--home-section-bg, rgba(15, 15, 35, 0.9));
    border-top: 1px solid var(--home-card-border, rgba(255, 255, 255, 0.08));
    padding: 60px 40px 30px;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--home-accent);
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 14px;
    color: var(--home-muted);
    line-height: 1.6;
}

.footer-wechat {
    margin-top: 20px;
    padding: 16px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.footer-wechat .wechat-qrcode {
    width: 80px;
    height: 80px;
    border-radius: 8px;
    flex-shrink: 0;
}

.footer-wechat p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
}

.footer-wechat .wechat-qrcode {
    cursor: pointer;
    transition: transform 0.3s ease;
}

.footer-wechat .wechat-qrcode:hover {
    transform: scale(1.05);
}

.footer-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--home-text);
    margin-bottom: 20px;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--home-muted);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--home-accent);
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 30px;
    border-top: 1px solid var(--home-card-border, rgba(255, 255, 255, 0.08));
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-info-list {
    display: flex;
    flex: 1;
    flex-wrap: wrap;
    gap: 12px 22px;
}

.footer-info-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--home-muted);
    margin: 8px 0;
    line-height: 1.6;
    text-decoration: none;
}

.footer-info-item i {
    font-size: 1em;
    line-height: 1;
}

a.footer-info-item:hover {
    color: var(--home-accent);
}

.footer-social {
    display: flex;
    gap: 16px;
}

.footer-social a {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background: rgba(0, 212, 255, 0.2);
    color: var(--home-accent);
}

/* ========== 公告横幅 ========== */
.announcements-section {
    padding: 86px 40px;
    background: var(--home-section-bg, #0e1522);
}

.section-header.compact {
    margin-bottom: 36px;
}

.announcements-carousel {
    --announcement-gap: 20px;
    --announcement-loop-offset: 10px;
    --announcement-card-width: 460px;
    --announcement-card-height: 220px;
    max-width: calc(var(--announcement-card-width) * 3 + var(--announcement-gap) * 2);
    margin: 0 auto;
    overflow: hidden;
}

.announcements-track {
    display: grid;
    grid-template-columns: repeat(3, var(--announcement-card-width));
    justify-content: center;
    gap: var(--announcement-gap);
}

.announcements-carousel.is-carousel .announcements-track {
    display: flex;
    width: max-content;
    animation: announcementAutoScroll 32s linear infinite;
}

.announcements-carousel.is-carousel:hover .announcements-track {
    animation-play-state: paused;
}

.announcements-carousel.is-carousel .announcement-card {
    flex: 0 0 var(--announcement-card-width);
}

@keyframes announcementAutoScroll {
    from {
        transform: translateX(0);
    }
    to {
        transform: translateX(calc(-50% - var(--announcement-loop-offset)));
    }
}

.announcement-card {
    width: var(--announcement-card-width);
    min-width: var(--announcement-card-width);
    height: var(--announcement-card-height);
    position: relative;
    overflow: hidden;
    border: 1px solid var(--home-card-border, rgba(255, 255, 255, 0.08));
    border-radius: 8px;
    background: var(--home-card-bg, rgba(255, 255, 255, 0.045));
    display: flex;
    flex-direction: column;
}

.announcement-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.announcement-image-empty {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 18px;
    background: rgba(255, 255, 255, 0.05);
    color: rgba(255, 255, 255, 0.62);
    text-align: center;
}

.announcement-body {
    min-height: 32px;
    padding: 5px 14px;
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    background: rgba(8, 15, 26, 0.48);
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(4px);
}

.announcement-body h3 {
    min-width: 0;
    margin: 0;
    color: #ffffff;
    font-size: 16px;
    line-height: 1.45;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.announcement-detail {
    display: inline-flex;
    flex-shrink: 0;
    align-items: center;
    color: #80eef5;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
}

.announcement-detail.is-disabled {
    color: rgba(255, 255, 255, 0.36);
}

@media (prefers-reduced-motion: reduce) {
    .announcements-carousel.is-carousel {
        overflow-x: auto;
    }

    .announcements-carousel.is-carousel .announcements-track {
        animation: none;
    }
}

/* ========== 二维码放大弹窗 ========== */
.qrcode-modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(5px);
}

.qrcode-modal-content {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
    position: relative;
}

.qrcode-modal-close {
    position: absolute;
    top: 30px;
    right: 40px;
    color: #ffffff;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    z-index: 10000;
    transition: all 0.3s ease;
}

.qrcode-modal-close:hover {
    color: #00d4ff;
    transform: rotate(90deg);
}

.qrcode-modal-image {
    max-width: 400px;
    max-height: 400px;
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* ========== 响应式设计 ========== */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

    .announcements-carousel {
        --announcement-gap: 16px;
        --announcement-loop-offset: 8px;
        --announcement-card-width: min(460px, calc((100vw - 56px) / 2));
        --announcement-card-height: calc(var(--announcement-card-width) * 220 / 460);
    }

    .announcements-carousel.is-carousel .announcement-card {
        flex-basis: var(--announcement-card-width);
    }

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

@media (max-width: 768px) {
    .navbar {
        padding: 12px 20px;
    }

    .navbar-nav {
        display: none;
    }

    .hero h1 {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .hero-features {
        flex-direction: column;
        gap: 16px;
    }

    .features-section,
    .announcements-section,
    .platforms-section {
        padding: 60px 20px;
    }

    .section-title {
        font-size: 32px;
    }

    .features-grid,
    .announcements-track,
    .platforms-grid {
        grid-template-columns: 1fr;
    }

    .announcements-carousel {
        --announcement-gap: 14px;
        --announcement-loop-offset: 7px;
        --announcement-card-width: calc(100vw - 40px);
        --announcement-card-height: calc(var(--announcement-card-width) * 220 / 460);
    }

    .announcements-carousel.is-carousel .announcement-card {
        flex-basis: var(--announcement-card-width);
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .footer-info-list {
        justify-content: center;
    }
}