/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

/* 鼠标光晕效果 */
.cursor-glow {
    position: fixed;
    top: 0;
    left: 0;
    width: 160px;
    height: 160px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(76, 175, 80, 0.25) 0%, rgba(76, 175, 80, 0.10) 30%, rgba(76, 175, 80, 0.03) 55%, transparent 70%);
    pointer-events: none;
    z-index: 9999;
    opacity: 0;
    transition: opacity 0.35s ease;
    will-change: transform, opacity;
}

.cursor-glow.active {
    opacity: 1;
}

body.dark-mode .cursor-glow {
    background: radial-gradient(circle, rgba(255, 255, 255, 0.22) 0%, rgba(255, 255, 255, 0.08) 30%, rgba(255, 255, 255, 0.02) 55%, transparent 70%);
}

:root {
    --primary-color: #4caf50;
    --primary-light: rgba(76, 175, 80, 0.1);
    --primary-medium: rgba(76, 175, 80, 0.5);
    --bg-color: #f8f9fa;
    --text-color: #333;
    --text-secondary: #666;
    --card-bg: rgba(255, 255, 255, 0.9);
    --card-border: rgba(255, 255, 255, 0.2);
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-strong: rgba(0, 0, 0, 0.15);
    --grid-color: rgba(255, 255, 255, 0.8);
}

body.dark-mode {
    --bg-color: #1a1a1a;
    --text-color: #f0f0f0;
    --text-secondary: #ccc;
    --card-bg: rgba(26, 26, 26, 0.9);
    --card-border: rgba(255, 255, 255, 0.1);
    --shadow: rgba(0, 0, 0, 0.3);
    --shadow-strong: rgba(0, 0, 0, 0.4);
    --grid-color: rgba(255, 255, 255, 0.1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background-color: var(--bg-color);
    background-image: 
        linear-gradient(var(--grid-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
    background-size: 20px 20px;
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 1200px;
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 0 0 25px 25px;
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 8px 32px var(--shadow);
    z-index: 1000;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    will-change: transform;
}

.navbar-scrolled {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15) !important;
    transform: translateX(-50%) translateY(-5px) !important;
}

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

.logo-img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.logo-text {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-color);
}

.navbar-center .nav-links {
    display: flex;
    gap: 30px;
    list-style: none;
}

.nav-link {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 700;
    font-size: 16px;
    position: relative;
    padding: 5px 0;
    transition: color 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

.nav-link.active {
    color: var(--primary-color);
}

.navbar-right {
    display: flex;
    align-items: center;
    gap: 15px;
}

.navbar-right .theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-color);
    font-size: 20px;
    padding: 8px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    background: var(--primary-light);
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-color);
    padding: 8px;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.mobile-menu-btn:hover {
    background: var(--primary-light);
}

/* 移动端侧边栏 */
.mobile-sidebar {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    width: 280px;
    height: 100vh;
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: -4px 0 20px var(--shadow);
    z-index: 1001;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
    will-change: transform;
}

.mobile-sidebar.active {
    transform: translateX(0);
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px;
    border-bottom: 1px solid var(--card-border);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-logo-img {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
}

.sidebar-logo-text {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-color);
}

.sidebar-close {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-color);
    padding: 8px;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.sidebar-close:hover {
    background: var(--primary-light);
}

.sidebar-nav {
    padding: 20px 0;
}

.sidebar-nav a {
    display: block;
    padding: 15px 25px;
    color: var(--text-color);
    text-decoration: none;
    font-size: 16px;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    background: var(--primary-light);
    color: var(--primary-color);
    border-left-color: var(--primary-color);
}

.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.3s ease;
    will-change: opacity;
}

.sidebar-overlay.active {
    display: block;
    opacity: 1;
}

/* Banner */
.banner {
    height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.banner-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    filter: brightness(0.7);
    z-index: -1;
}

.banner-content {
    text-align: center;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 40px;
    padding: 0 20px;
}

.banner-title {
    font-size: clamp(2rem, 8vw, 5rem);
    font-weight: 800;
    color: white;
    margin-bottom: 20px;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.5);
    animation: fadeInUp 1s ease-out;
    transition: transform 0.3s ease;
    white-space: nowrap;
    line-height: 1.2;
}

.banner-subtitle {
    font-size: clamp(0.85rem, 2.5vw, 1.2rem);
    color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
    animation: fadeInUp 1s ease-out 0.3s both;
    transition: transform 0.3s ease, opacity 0.3s ease;
    max-width: 90vw;
}

/* 移动端/桌面端显示控制 */
.mobile-only {
    display: block;
}

.desktop-only {
    display: none;
}

/* 信息模块 - 桌面端 */
.info-modules {
    width: 100%;
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    gap: 20px;
    padding: 0 20px;
    flex-wrap: wrap;
    justify-content: center;
}

.contact-buttons {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 15px;
}

.info-card {
    flex: 1 1 45%;
    min-width: clamp(280px, 40vw, 300px);
    max-width: clamp(400px, 45vw, 480px);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: clamp(16px, 3vw, 25px);
    padding: clamp(16px, 2vw, 20px);
    box-shadow: 0 8px 32px var(--shadow);
    position: relative;
    overflow: visible;
    display: flex;
    flex-direction: column;
}

.info-title {
    font-size: clamp(15px, 2vw, 18px);
    font-weight: 600;
    margin-bottom: clamp(12px, 2vw, 20px);
    color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.info-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.domain-info {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 15px;
}

.domain-actions {
    display: flex;
    gap: 10px;
    width: 100%;
}

.domain-text {
    font-size: clamp(11px, 1.5vw, 13px);
    color: white;
    white-space: nowrap;
    overflow: hidden;
    display: inline-block;
    width: 100%;
    min-width: clamp(180px, 25vw, 240px);
    max-width: 100%;
    height: clamp(32px, 5vw, 36px);
    line-height: clamp(32px, 5vw, 36px);
    padding: 0 clamp(10px, 1.5vw, 12px);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    border-radius: clamp(8px, 1.5vw, 12px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.3);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    letter-spacing: 0.5px;
    text-align: center;
}

/* 打字机光标效果 */
.domain-text.typing::after {
    content: '|';
    animation: blink 1s infinite;
    color: #4caf50;
    font-weight: bold;
    margin-left: 2px;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.copy-btn, .visit-btn, .qq-group-btn, .wechat-btn, .wechat-qr-btn {
    padding: clamp(5px, 1vw, 6px) clamp(10px, 1.5vw, 12px);
    border: none;
    border-radius: clamp(12px, 2vw, 16px);
    font-size: clamp(11px, 1.5vw, 13px);
    font-weight: 500;
    white-space: nowrap;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
}

.copy-btn {
    background: rgba(76, 175, 80, 0.2);
    color: white;
    border: 1px solid rgba(76, 175, 80, 0.5);
}

.copy-btn:hover {
    background: rgba(76, 175, 80, 0.4);
}

.copy-btn.copied {
    background: #4caf50;
    color: white;
}

.visit-btn, .wechat-btn {
    background: rgba(76, 175, 80, 0.8);
    color: white;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    width: 100%;
}

.visit-btn:hover, .wechat-btn:hover {
    background: rgba(76, 175, 80, 1);
}

.qq-group-btn, .wechat-qr-btn {
    background: rgba(76, 175, 80, 0.2);
    color: white;
    width: 100%;
    border: 1px solid rgba(76, 175, 80, 0.5);
}

.qq-group-btn:hover, .wechat-qr-btn:hover {
    background: rgba(76, 175, 80, 0.4);
}

.wechat-qr {
    margin-top: 15px;
    padding: 0;
    background: transparent;
    display: none;
    opacity: 0;
    transition: all 0.3s ease;
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(0);
    margin-bottom: 15px;
    z-index: 10;
}

.wechat-qr.active {
    display: block;
    transform: translateX(-50%) translateY(-5px);
    opacity: 1;
}

.wechat-qr img {
    width: 160px;
    height: 160px;
    display: block;
    margin: 0 auto;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    border: 3px solid white;
}

body.dark-mode .wechat-qr img {
    border-color: rgba(255, 255, 255, 0.2);
}

/* 移动端简洁按钮样式 */
.mobile-actions {
    display: none;
    flex-direction: column;
    gap: 15px;
    width: 100%;
    max-width: 300px;
    margin-top: 20px;
}

.mobile-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: 25px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
    border: none;
    width: 100%;
}

.mobile-btn-primary {
    background: linear-gradient(135deg, #4caf50 0%, #45a049 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(76, 175, 80, 0.4);
}

.mobile-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(76, 175, 80, 0.5);
}

.mobile-btn-secondary {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.mobile-btn-secondary:hover {
    background: rgba(255, 255, 255, 0.25);
}

/* 关于我们 */
.about-section {
    padding: 80px 20px 60px;
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    font-size: clamp(1.5rem, 5vw, 2.5rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: clamp(30px, 5vw, 60px);
    color: var(--primary-color);
    line-height: 1.3;
}

.about-content {
    display: flex;
    gap: 60px;
    align-items: center;
}

.about-image {
    flex: 1;
    position: relative;
}

.about-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 25px;
    box-shadow: 0 15px 30px var(--shadow);
}

.image-label {
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    box-shadow: 0 5px 15px var(--shadow);
}

.about-text {
    flex: 1;
}

.about-description {
    font-size: clamp(14px, 2vw, 16px);
    line-height: 1.8;
    margin-bottom: 20px;
    color: var(--text-secondary);
}

.feature-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 30px;
}

.tag {
    padding: 8px 16px;
    background: var(--primary-light);
    color: var(--primary-color);
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
}

/* 时间轴 */
.history-section {
    padding: 60px 20px;
}

.timeline {
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--primary-color);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 60px;
    display: flex;
    align-items: center;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-date {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    z-index: 1;
}

.timeline-content {
    width: 45%;
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 30px;
    border-radius: 25px;
    box-shadow: 0 8px 32px var(--shadow);
}

.timeline-content h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.timeline-content p {
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-secondary);
}

/* 团队成员 */
.team-section {
    padding: 60px 20px;
}

.team-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(clamp(280px, 30vw, 300px), 1fr));
    gap: clamp(20px, 3vw, 30px);
    padding: 0 clamp(15px, 3vw, 20px);
}

.team-card {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: clamp(16px, 3vw, 20px);
    padding: clamp(20px, 3vw, 30px);
    box-shadow: 0 8px 32px var(--shadow);
    border: 1px solid var(--card-border);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.team-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px var(--shadow-strong);
}

.team-quote {
    font-size: clamp(14px, 2vw, 16px);
    line-height: 1.6;
    margin-bottom: clamp(15px, 2vw, 20px);
    color: var(--text-secondary);
    font-style: italic;
}

.team-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.team-avatar {
    width: clamp(50px, 8vw, 60px);
    height: clamp(50px, 8vw, 60px);
    border-radius: 50%;
    object-fit: cover;
    border: clamp(2px, 0.5vw, 3px) solid var(--primary-color);
}

.team-details {
    flex: 1;
}

.team-name {
    font-size: clamp(15px, 2.5vw, 18px);
    font-weight: 600;
    margin-bottom: 5px;
    color: var(--text-color);
}

.team-role {
    font-size: clamp(12px, 2vw, 14px);
    color: var(--text-secondary);
}

/* 工具页面 */
.tools-section {
    padding: 100px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.tools-container {
    display: flex;
    gap: 40px;
}

.tools-sidebar {
    width: 200px;
    flex-shrink: 0;
}

.tools-nav {
    list-style: none;
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 25px;
    padding: 20px;
    box-shadow: 0 8px 32px var(--shadow);
}

.tools-nav-link {
    display: block;
    padding: 12px 20px;
    text-decoration: none;
    color: var(--text-color);
    border-radius: 15px;
    margin-bottom: 10px;
    transition: all 0.3s ease;
}

.tools-nav-link:hover {
    background: var(--primary-light);
}

.tools-nav-link.active {
    background: var(--primary-light);
    color: var(--primary-color);
}

.tools-content-wrapper {
    flex: 1;
}

.tools-content {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 25px;
    padding: 40px;
    box-shadow: 0 8px 32px var(--shadow);
}

.tool-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 15px;
    margin-bottom: 20px;
    flex-wrap: nowrap;
    box-shadow: 0 4px 16px var(--shadow);
    border: 1px solid var(--card-border);
}

body.dark-mode .tool-item {
    background: var(--card-bg);
}

.tool-item h3 {
    flex: 1;
    font-size: 18px;
    font-weight: 600;
    color: var(--text-color);
    margin-right: 20px;
}

.tool-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 20px;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
    min-width: 70px;
    flex-shrink: 0;
}

.tool-btn:hover {
    background: #45a049;
    transform: translateY(-2px);
}

/* 友情链接样式 - 折叠堆叠式 */
#links-content {
    display: flex;
    flex-direction: column;
    gap: 0;
    perspective: 1000px;
}

.link-item {
    position: relative;
    background: linear-gradient(135deg, rgba(255,255,255,0.95) 0%, rgba(255,255,255,0.85) 100%);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 16px;
    box-shadow: 
        0 -2px 10px rgba(0,0,0,0.05),
        0 4px 20px rgba(0,0,0,0.1);
    border: 1px solid rgba(255,255,255,0.6);
    margin-top: -30px;
    transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
    transform-origin: center top;
    transform-style: preserve-3d;
    z-index: 1;
}

.link-item:first-child {
    margin-top: 0;
}

.link-item:hover {
    transform: translateY(-20px) rotateX(5deg) scale(1.02);
    z-index: 10;
    box-shadow: 
        0 -5px 30px rgba(0,0,0,0.1),
        0 20px 40px rgba(0,0,0,0.15);
}

.link-item:hover ~ .link-item {
    transform: translateY(10px);
}

.link-item:has(~ .link-item:hover) {
    transform: translateY(-5px) rotateX(-3deg);
    opacity: 0.9;
}

body.dark-mode .link-item {
    background: linear-gradient(135deg, rgba(40,40,40,0.95) 0%, rgba(30,30,40,0.9) 100%);
    border: 1px solid rgba(255,255,255,0.1);
    box-shadow: 
        0 -2px 10px rgba(0,0,0,0.2),
        0 4px 20px rgba(0,0,0,0.4);
}

.friend-link {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px 24px;
    text-decoration: none;
    position: relative;
}

.link-icon-wrapper {
    position: relative;
    width: 56px;
    height: 56px;
    flex-shrink: 0;
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.link-item:hover .link-icon-wrapper {
    transform: scale(1.15) rotate(-10deg);
}

.link-icon {
    width: 100%;
    height: 100%;
    border-radius: 14px;
    object-fit: cover;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.link-icon-wrapper::before {
    content: '';
    position: absolute;
    inset: -3px;
    background: linear-gradient(135deg, var(--primary-color), #81c784, var(--primary-color));
    border-radius: 17px;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.link-item:hover .link-icon-wrapper::before {
    opacity: 0.6;
    animation: borderRotate 3s linear infinite;
}

@keyframes borderRotate {
    0% { filter: hue-rotate(0deg); }
    100% { filter: hue-rotate(360deg); }
}

.link-info {
    flex: 1;
    min-width: 0;
}

.link-name {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-color);
    margin: 0 0 4px 0;
    transition: transform 0.3s ease;
}

.link-item:hover .link-name {
    transform: translateX(5px);
}

.link-description {
    font-size: 13px;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.4;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.link-item:hover .link-description {
    opacity: 1;
}

.link-arrow {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color), #66bb6a);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: scale(0.8) rotate(-45deg);
    opacity: 0.5;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 0 4px 15px rgba(76, 175, 80, 0.3);
}

.link-arrow svg {
    width: 20px;
    height: 20px;
    fill: white;
    transition: transform 0.3s ease;
}

.link-item:hover .link-arrow {
    transform: scale(1) rotate(0deg);
    opacity: 1;
    box-shadow: 0 6px 20px rgba(76, 175, 80, 0.5);
}

.link-item:hover .link-arrow svg {
    transform: translateX(3px);
}

/* 堆叠指示器 */
.link-item::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 10%;
    right: 10%;
    height: 6px;
    background: linear-gradient(90deg, transparent, rgba(0,0,0,0.1), transparent);
    border-radius: 50%;
    opacity: 0.5;
    transition: all 0.3s ease;
}

.link-item:hover::after {
    opacity: 0;
    transform: scaleX(1.5);
}

/* 联系我们区域 */
.contact-section {
    padding: 100px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.contact-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(clamp(260px, 30vw, 280px), 1fr));
    gap: clamp(20px, 3vw, 30px);
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 clamp(15px, 3vw, 20px);
}

.contact-card {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: clamp(16px, 3vw, 20px);
    padding: clamp(20px, 3vw, 30px);
    box-shadow: 0 8px 32px var(--shadow);
    border: 1px solid var(--card-border);
    text-align: center;
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.contact-card:hover {
    transform: translateY(-5px);
}

.contact-card h3 {
    font-size: clamp(16px, 2.5vw, 18px);
    font-weight: 600;
    margin-bottom: clamp(15px, 2vw, 20px);
    color: var(--primary-color);
}

.contact-card .qr-code {
    width: clamp(120px, 20vw, 150px);
    height: clamp(120px, 20vw, 150px);
    margin: 0 auto clamp(12px, 2vw, 15px);
    object-fit: cover;
}

.contact-card p {
    font-size: clamp(13px, 2vw, 14px);
    color: var(--text-secondary);
    margin-bottom: 15px;
    min-height: 20px;
}

/* QQ群卡片中的图标容器 */
.contact-card .qq-icon-wrapper {
    width: clamp(120px, 20vw, 150px);
    height: clamp(120px, 20vw, 150px);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto clamp(12px, 2vw, 15px);
}

.contact-card .qq-icon-wrapper svg {
    width: 80px;
    height: 80px;
}

.contact-card .contact-btn,
.contact-card button.contact-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: clamp(8px, 1.5vw, 10px) clamp(20px, 3vw, 24px);
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 20px;
    font-size: clamp(13px, 2vw, 14px);
    font-weight: 500;
    transition: all 0.3s ease;
    min-width: 120px;
    height: 40px;
    box-sizing: border-box;
    border: none;
    cursor: pointer;
    font-family: inherit;
    margin-top: auto;
}

.contact-card .contact-btn:hover,
.contact-card button.contact-btn:hover {
    background: #45a049;
}

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

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-main {
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: center;
}

.footer-copyright {
    font-size: 14px;
    color: var(--text-secondary);
    margin: 0;
}

.footer-beian {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 8px 20px;
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.beian-subject {
    color: var(--text-secondary);
    font-size: 13px;
    white-space: nowrap;
}

.beian-link {
    color: var(--primary-color);
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
}

.beian-link:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.beian-link::after {
    content: '';
    display: inline-block;
    width: 14px;
    height: 14px;
    margin-left: 4px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%234caf50' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M18 13v6a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V8a2 2 0 0 1 2-2h6'%3E%3C/path%3E%3Cpolyline points='15 3 21 3 21 9'%3E%3C/polyline%3E%3Cline x1='10' y1='14' x2='21' y2='3'%3E%3C/line%3E%3C/svg%3E") no-repeat center;
    background-size: contain;
    vertical-align: middle;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.beian-link:hover::after {
    opacity: 1;
}

/* QQ群模态框 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    z-index: 998;
    display: none;
    opacity: 0;
    transition: all 0.3s ease;
    pointer-events: none;
}

.modal-overlay.active {
    display: block;
    opacity: 1;
    pointer-events: auto;
}

.qq-group-modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 20px;
    box-shadow: 0 20px 60px var(--shadow-strong);
    border: 1px solid var(--card-border);
    z-index: 999;
    width: 90%;
    max-width: 500px;
    display: none;
    opacity: 0;
    transition: all 0.3s ease;
}

.qq-group-modal.active {
    display: block;
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    border-bottom: 1px solid var(--card-border);
}

.modal-header h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-color);
    margin: 0;
}

.close-btn {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text-secondary);
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.modal-body {
    padding: 20px;
    max-height: 60vh;
    overflow-y: auto;
}

.modal-body::-webkit-scrollbar {
    width: 6px;
}

.modal-body::-webkit-scrollbar-track {
    background: rgba(0,0,0,0.05);
    border-radius: 3px;
}

.modal-body::-webkit-scrollbar-thumb {
    background: rgba(0,0,0,0.2);
    border-radius: 3px;
}

.modal-body .group-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 16px;
    padding: 18px 20px;
    margin-bottom: 12px;
    border: 1px solid var(--card-border);
    transition: all 0.3s ease;
}

.modal-body .group-item:hover {
    background: rgba(255, 255, 255, 0.8);
    transform: translateX(5px);
}

body.dark-mode .modal-body .group-item {
    background: rgba(255, 255, 255, 0.08);
}

body.dark-mode .modal-body .group-item:hover {
    background: rgba(255, 255, 255, 0.12);
}

.modal-body .group-item:last-child {
    margin-bottom: 0;
}

.group-info {
    flex: 1;
    min-width: 0;
}

.modal-body .group-item h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-color);
    margin: 0 0 6px 0;
    line-height: 1.4;
}

.group-number {
    font-size: 13px;
    color: var(--text-secondary);
    margin: 0 0 4px 0;
}



.join-group-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    background: linear-gradient(135deg, var(--primary-color), #66bb6a);
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-size: 13px;
    font-weight: 600;
    transition: all 0.3s ease;
    white-space: nowrap;
    box-shadow: 0 4px 15px rgba(76, 175, 80, 0.3);
}

.join-group-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(76, 175, 80, 0.4);
}

/* 动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.qr-popup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.qr-popup-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
}

.qr-popup-content {
    position: relative;
    background: var(--card-bg, white);
    padding: 30px;
    border-radius: 20px;
    text-align: center;
    z-index: 1001;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.qr-popup-content img {
    width: 200px;
    height: 200px;
    border-radius: 12px;
    margin-bottom: 15px;
}

.qr-popup-close {
    position: absolute;
    top: 10px;
    right: 15px;
    background: none;
    border: none;
    font-size: 28px;
    cursor: pointer;
    color: #666;
}

/* 响应式设计 */

/* 桌面端 - 1025px以上 */
@media (min-width: 1025px) {
    /* 桌面端显示控制 */
    .mobile-only {
        display: none;
    }
    
    .desktop-only {
        display: block;
    }
}

/* 平板横屏/矮屏幕特殊情况 - 宽度像桌面但高度很矮 */
@media (min-width: 1025px) and (max-height: 700px) {
    /* 整体缩小Banner区域 */
    .banner-content {
        gap: 20px;
        padding: 0 20px;
        transform: scale(0.85);
    }
    
    /* 缩小标题 */
    .banner-title {
        font-size: clamp(2rem, 5vw, 3.5rem);
        margin-bottom: 10px;
    }
    
    /* 缩小副标题 */
    .banner-subtitle {
        font-size: clamp(0.8rem, 1.8vw, 1rem);
        margin-bottom: 8px;
    }
    
    /* 矮屏幕隐藏桌面版信息模块，显示移动端按钮 */
    .info-modules {
        display: none;
    }
    
    .mobile-actions {
        display: flex;
    }
    
    /* 调整Banner高度 */
    .banner {
        min-height: auto;
        height: 100vh;
        padding: 80px 0 30px;
    }
}

/* 平板端 - 769px ~ 1024px */
@media (max-width: 1024px) and (min-width: 769px) {
    /* 平板显示移动端样式 */
    .mobile-only {
        display: block;
    }
    
    .desktop-only {
        display: none;
    }
    
    /* 隐藏桌面导航中间部分 */
    .navbar-center {
        display: none;
    }
    
    /* 平板显示移动端菜单按钮和侧边栏 */
    .mobile-menu-btn {
        display: flex !important;
    }
    
    .mobile-sidebar {
        display: block !important;
    }
    
    body.no-mobile-sidebar .mobile-menu-btn,
    body.no-mobile-sidebar .mobile-sidebar,
    body.no-mobile-sidebar .sidebar-overlay {
        display: none !important;
    }
    
    /* 平板导航栏 */
    .navbar {
        width: 100%;
        max-width: 100%;
        padding: 14px 24px;
        border-radius: 0;
        left: 0;
        right: 0;
        transform: none !important;
        top: 0;
        position: fixed;
        margin: 0;
        box-sizing: border-box;
    }
    
    /* 平板标题字体 */
    .banner-title {
        font-size: clamp(2.5rem, 6vw, 3.5rem);
    }
    
    .banner-subtitle {
        font-size: clamp(0.9rem, 2vw, 1.1rem);
    }
    
    /* 平板端隐藏桌面版信息模块，显示移动端按钮 */
    .info-modules {
        display: none;
    }
    
    .mobile-actions {
        display: flex;
    }
    
    /* 平板关于我们布局 */
    .about-content {
        flex-direction: column;
        text-align: center;
        gap: 40px;
    }
    
    .about-image, .about-text {
        width: 100%;
    }
    
    .about-image img {
        height: 300px;
        border-radius: 20px;
    }
    
    .feature-tags {
        justify-content: center;
    }
    
    /* 平板时间轴 - 使用移动端样式 */
    .timeline {
        padding-left: 0;
    }
    
    .timeline::before {
        left: 15px;
        width: 2px;
    }
    
    .timeline-item {
        flex-direction: column !important;
        align-items: flex-start;
        padding-left: 35px;
        margin-bottom: 25px;
    }
    
    .timeline-date {
        position: relative;
        left: 0;
        transform: none;
        font-size: 12px;
        padding: 4px 10px;
        margin-bottom: 8px;
        align-self: flex-start;
        border-radius: 12px;
    }
    
    .timeline-content {
        width: 100%;
        padding: 15px;
        border-radius: 12px;
    }
    
    .timeline-content h3 {
        font-size: 15px;
        margin-bottom: 8px;
        line-height: 1.4;
    }
    
    .timeline-content p {
        font-size: 13px;
        line-height: 1.6;
    }
    
    /* 平板友情链接 - 堆叠式 */
    #links-content {
        gap: 0;
    }
    
    .link-item {
        margin-top: -20px;
        border-radius: 14px;
    }
    
    .link-item:first-child {
        margin-top: 0;
    }
    
    .friend-link {
        padding: 18px 20px;
        gap: 16px;
    }
    
    .link-icon-wrapper {
        width: 52px;
        height: 52px;
    }
    
    .link-name {
        font-size: 15px;
    }
    
    .link-arrow {
        width: 36px;
        height: 36px;
    }
    
    /* 平板工具页面 */
    .tools-container {
        flex-direction: column;
    }
    
    .tools-sidebar {
        width: 100%;
    }
    
    .tools-nav {
        display: flex;
        gap: 10px;
        overflow-x: auto;
        white-space: nowrap;
        padding: 15px;
    }
    
    .tools-nav-link {
        margin-bottom: 0;
        flex-shrink: 0;
    }
    
    /* 平板团队成员 */
    .team-container {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* 平板联系我们 */
    .contact-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 手机端 - 768px以下 */
@media (max-width: 768px) {
    /* 手机端显示控制 */
    .mobile-only {
        display: block;
    }
    
    .desktop-only {
        display: none;
    }
    
    /* 隐藏桌面导航中间部分 */
    .navbar-center {
        display: none;
    }
    
    /* 移动端菜单按钮和侧边栏 */
    .mobile-menu-btn {
        display: flex !important;
    }
    
    .mobile-sidebar {
        display: block !important;
    }

    body.no-mobile-sidebar .mobile-menu-btn,
    body.no-mobile-sidebar .mobile-sidebar,
    body.no-mobile-sidebar .sidebar-overlay {
        display: none !important;
    }
    
    /* 手机导航栏 */
    .navbar {
        width: 100%;
        max-width: 100%;
        padding: 12px 16px;
        border-radius: 0;
        left: 0;
        right: 0;
        transform: none !important;
        top: 0;
        position: fixed;
        margin: 0;
        box-sizing: border-box;
    }
    
    /* 手机标题字体 */
    .banner-title {
        font-size: clamp(1.8rem, 7vw, 2.5rem);
    }
    
    .banner-subtitle {
        font-size: clamp(0.8rem, 3vw, 0.95rem);
        margin-bottom: 10px;
    }
    
    /* 手机关于我们 */
    .about-content {
        flex-direction: column;
        text-align: center;
        gap: 30px;
    }
    
    .about-image, .about-text {
        width: 100%;
    }
    
    .about-image img {
        height: 220px;
        border-radius: 16px;
    }
    
    .image-label {
        font-size: 12px;
        padding: 6px 14px;
    }
    
    .feature-tags {
        justify-content: center;
    }
    
    /* 手机隐藏桌面版信息模块 */
    .info-modules {
        display: none;
    }
    
    /* 手机显示简洁按钮 */
    .mobile-actions {
        display: flex;
    }
    
    /* 手机时间轴 */
    /* 移动端时间轴重新排版 */
    .timeline {
        padding-left: 0;
    }
    
    .timeline::before {
        left: 15px;
        width: 2px;
    }
    
    .timeline-item {
        flex-direction: column !important;
        align-items: flex-start;
        padding-left: 35px;
        margin-bottom: 25px;
    }
    
    .timeline-date {
        position: relative;
        left: 0;
        transform: none;
        font-size: 12px;
        padding: 4px 10px;
        margin-bottom: 8px;
        align-self: flex-start;
        border-radius: 12px;
    }
    
    .timeline-content {
        width: 100%;
        padding: 15px;
        border-radius: 12px;
    }
    
    .timeline-content h3 {
        font-size: 15px;
        margin-bottom: 8px;
        line-height: 1.4;
    }
    
    .timeline-content p {
        font-size: 13px;
        line-height: 1.6;
    }
    
    /* 手机工具页面 */
    .tools-container {
        flex-direction: column;
    }
    
    .tools-sidebar {
        width: 100%;
    }
    
    .tools-nav {
        display: flex;
        gap: 10px;
        overflow-x: auto;
        white-space: nowrap;
        padding: 15px;
    }
    
    .tools-nav-link {
        margin-bottom: 0;
        flex-shrink: 0;
    }
    
    /* 手机工具列表 */
    .tools-content {
        padding: 20px;
        border-radius: 16px;
    }
    
    .tool-item {
        padding: 15px;
        margin-bottom: 15px;
        border-radius: 12px;
    }
    
    .tool-item h3 {
        font-size: 15px;
        margin-right: 15px;
    }
    
    .tool-btn {
        padding: 6px 16px;
        font-size: 13px;
        min-width: 60px;
    }
    
    /* 手机友情链接 - 堆叠式 */
    #links-content {
        gap: 0;
    }
    
    .link-item {
        margin-top: -15px;
        border-radius: 12px;
    }
    
    .link-item:first-child {
        margin-top: 0;
    }
    
    .friend-link {
        padding: 16px;
        gap: 12px;
    }
    
    .link-icon-wrapper {
        width: 48px;
        height: 48px;
    }
    
    .link-name {
        font-size: 14px;
    }
    
    .link-description {
        font-size: 12px;
    }
    
    .link-arrow {
        width: 32px;
        height: 32px;
        border-radius: 10px;
    }
    
    .link-arrow svg {
        width: 16px;
        height: 16px;
    }
    
    /* 手机QQ群弹窗 */
    .qq-group-modal {
        width: 90%;
        max-width: 90%;
        border-radius: 16px;
    }
    
    .modal-header {
        padding: 16px 20px;
    }
    
    .modal-header h3 {
        font-size: 17px;
    }
    
    .modal-body {
        padding: 16px;
        max-height: 65vh;
    }
    
    .modal-body .group-item {
        flex-direction: row;
        align-items: center;
        gap: 10px;
        padding: 14px 16px;
    }
    
    .modal-body .group-item h4 {
        font-size: 14px;
        margin-bottom: 4px;
    }
    
    .group-number {
        font-size: 12px;
    }
    
    .join-group-btn {
        padding: 8px 14px;
        font-size: 12px;
        white-space: nowrap;
    }
    
    /* 手机团队成员 */
    .team-container {
        grid-template-columns: 1fr;
    }
    
    /* 手机联系我们 - 横版排版 */
    .contact-container {
        display: flex;
        flex-direction: column;
        gap: 15px;
    }
    
    .contact-card {
        display: flex;
        flex-direction: row;
        align-items: center;
        padding: 15px;
        gap: 15px;
        text-align: left;
    }
    
    .contact-card h3 {
        display: none;
    }
    
    .contact-card .qr-code {
        width: 70px;
        height: 70px;
        margin: 0;
        flex-shrink: 0;
    }
    
    .contact-card p {
        flex: 1;
        margin: 0;
        font-size: 13px;
    }
    
    .contact-card .contact-btn,
    .contact-card button.contact-btn {
        min-width: 90px;
        height: 36px;
        padding: 0 15px;
        font-size: 13px;
        flex-shrink: 0;
    }
    
    /* 手机Banner */
    .banner {
        height: auto;
        min-height: 100vh;
        padding: 100px 0 40px;
    }
    
    .banner-content {
        gap: 25px;
    }
    
    /* 手机端所有大板块间距紧凑 */
    .about-section {
        padding: 50px 15px 40px;
    }
    
    .history-section {
        padding: 40px 15px;
    }
    
    .team-section {
        padding: 40px 15px;
    }
    
    .tools-section {
        padding: 40px 15px;
    }
    
    .contact-section {
        padding: 40px 15px;
    }
    
    /* 手机端章节标题间距减小 */
    .section-title {
        margin-bottom: 25px;
    }
}

/* 超小屏幕 - 480px以下 */
@media (max-width: 480px) {
    .banner-title {
        font-size: clamp(1.6rem, 8vw, 2rem);
    }
    
    .section-title {
        font-size: clamp(1.3rem, 5vw, 1.5rem);
    }
    
    .mobile-btn {
        padding: 12px 24px;
        font-size: 15px;
    }
    
    /* 超小屏幕导航栏 */
    .navbar {
        padding: 10px 12px;
    }
    
    .logo-text {
        font-size: 16px;
    }
    
    .logo-img {
        width: 36px;
        height: 36px;
    }
    
    /* 超小屏幕友情链接 - 堆叠式 */
    #links-content {
        gap: 0;
    }
    
    .link-item {
        margin-top: -12px;
        border-radius: 10px;
    }
    
    .link-item:first-child {
        margin-top: 0;
    }
    
    .friend-link {
        padding: 14px;
        gap: 10px;
    }
    
    .link-icon-wrapper {
        width: 42px;
        height: 42px;
    }
    
    .link-icon {
        border-radius: 10px;
    }
    
    .link-name {
        font-size: 13px;
    }
    
    .link-description {
        font-size: 11px;
    }
    
    .link-arrow {
        width: 28px;
        height: 28px;
        border-radius: 8px;
    }
    
    .link-arrow svg {
        width: 14px;
        height: 14px;
    }
}

/* 手机横屏特殊情况 - 高度很矮 */
@media (max-width: 768px) and (max-height: 500px) and (orientation: landscape) {
    /* 整体缩小Banner区域 */
    .banner-content {
        gap: 8px;
        padding: 0 15px;
    }
    
    /* 缩小标题 */
    .banner-title {
        font-size: clamp(1.3rem, 5vw, 2rem);
        margin-bottom: 5px;
    }
    
    /* 缩小副标题 */
    .banner-subtitle {
        font-size: clamp(0.65rem, 1.8vw, 0.85rem);
        margin-bottom: 5px;
    }
    
    /* 手机横屏继续隐藏桌面版信息模块 */
    .info-modules {
        display: none;
    }
    
    /* 手机横屏显示移动端简洁按钮 - 横向排列 */
    .mobile-actions {
        display: flex;
        flex-direction: row;
        justify-content: center;
        gap: clamp(8px, 3vw, 15px);
        margin-top: 8px;
        width: auto;
        max-width: none;
        padding: 0 10px;
    }
    
    /* 手机横屏按钮自适应 */
    .mobile-btn {
        padding: clamp(6px, 2vw, 10px) clamp(12px, 4vw, 20px);
        font-size: clamp(11px, 3vw, 14px);
        border-radius: 20px;
        width: auto;
        min-width: clamp(100px, 25vw, 140px);
        white-space: nowrap;
        flex-shrink: 0;
    }
    
    /* 手机横屏按钮图标缩小 */
    .mobile-btn svg {
        width: clamp(14px, 4vw, 18px);
        height: clamp(14px, 4vw, 18px);
    }
    
    /* 调整Banner高度 - 增加顶部padding避免被导航栏遮挡 */
    .banner {
        min-height: auto;
        height: 100vh;
        padding: 80px 0 15px;
    }
    
    /* 手机横屏Banner内容区域调整 */
    .banner-content {
        padding-top: 20px;
    }
}

/* 移动端页脚适配 */
@media (max-width: 768px) {
    .footer {
        padding: 20px 15px;
    }
    
    .footer-main {
        gap: 10px;
    }
    
    .footer-copyright {
        font-size: 12px;
    }
    
    .footer-beian {
        flex-direction: column;
        gap: 4px;
        font-size: 12px;
    }
    
    .beian-subject {
        font-size: 12px;
        white-space: normal;
    }
    
    .beian-link {
        font-size: 12px;
    }
}