/* 通用样式文件 - Common CSS */

/* CSS 变量定义 */
:root {
    /* 主色调 */
    --primary-color: #ffd700;
    --primary-dark: #e6c200;
    --primary-light: #ffed4e;
    
    /* 辅助色 */
    --secondary-color: #667eea;
    --accent-color: #764ba2;
    
    /* 背景色 */
    --bg-primary: #0f1419;
    --bg-secondary: #1a202c;
    --bg-tertiary: #2d3748;
    --bg-card: rgba(255, 255, 255, 0.05);
    
    /* 文字颜色 */
    --text-primary: #ffffff;
    --text-secondary: #a0aec0;
    --text-muted: #718096;
    
    /* 边框和分割线 */
    --border-color: rgba(255, 255, 255, 0.1);
    --divider-color: rgba(255, 255, 255, 0.05);
    
    /* 阴影 */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.3);
    
    /* 圆角 */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* 间距 */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* 字体大小 */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    
    /* 过渡动画 */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #ffffff !important;
    background: var(--bg-primary);
    overflow-x: hidden;
}

/* 链接样式 */
a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-normal);
}

a:hover {
    color: var(--primary-color);
}

/* 图片样式 */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* 按钮基础样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border: none;
    border-radius: var(--radius-lg);
    font-size: var(--text-base);
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition-normal);
    white-space: nowrap;
    user-select: none;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* 主要按钮 */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--bg-primary);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: var(--bg-primary);
}

/* 次要按钮 */
.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--bg-secondary);
    border-color: var(--primary-color);
}

/* 轮廓按钮 */
.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-outline:hover:not(:disabled) {
    background: var(--primary-color);
    color: var(--bg-primary);
}

/* 按钮尺寸 */
.btn-sm {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--text-sm);
}

.btn-lg {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--text-lg);
}

/* 卡片样式 */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    backdrop-filter: blur(10px);
    transition: var(--transition-normal);
}

.card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
}

/* 容器样式 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

.container-fluid {
    width: 100%;
    padding: 0 var(--spacing-xl);
}

/* 网格系统 */
.grid {
    display: grid;
    gap: var(--spacing-xl);
}

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

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

/* 弹性布局 */
.flex {
    display: flex;
}

.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.flex-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.flex-col {
    flex-direction: column;
}

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

/* 间距工具类 */
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }
.gap-xl { gap: var(--spacing-xl); }

/* 全局模态框样式 */
.modal {
    position: fixed;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.6);
    z-index: 1000;
    padding: var(--spacing-xl);
}

.modal.active {
    display: flex;
}

.modal-content {
    width: 100%;
    max-width: 520px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg) var(--spacing-xl);
    border-bottom: 1px solid var(--divider-color);
}

.modal-title {
    font-size: var(--text-xl);
    font-weight: 700;
}

.modal-close {
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    cursor: pointer;
}

.modal-body {
    padding: var(--spacing-xl);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

.form-control {
    width: 100%;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

/* 提升模态框与深色主题下的占位符可读性 */
.form-control::placeholder {
    color: var(--text-secondary);
    opacity: 0.85;
}

.input-group {
    display: flex;
    gap: var(--spacing-md);
}

.helper-text {
    margin-top: var(--spacing-sm);
    font-size: var(--text-sm);
    color: var(--text-muted);
}

.m-0 { margin: 0; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }
.p-xl { padding: var(--spacing-xl); }

/* 文字工具类 */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--primary-color); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }

.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-medium { font-weight: 500; }

/* 标题样式 */
.title {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-lg);
}

.title-xl {
    font-size: var(--text-5xl);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.title-lg {
    font-size: var(--text-4xl);
}

.title-md {
    font-size: var(--text-3xl);
}

.title-sm {
    font-size: var(--text-2xl);
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
}

/* 全局消息提示框（跨页面使用） */
.message-box {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 12px 16px;
    border-radius: 10px;
    color: #ffffff;
    box-shadow: var(--shadow-lg);
    z-index: 2000;
    display: none;
}

.message-box.show { display: block; }

.message-box.success { background: linear-gradient(135deg, #2ed573 0%, #17c0eb 100%); }
.message-box.error   { background: linear-gradient(135deg, #ff4757 0%, #ff3742 100%); }
.message-box.info    { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); }

.message-box .message-content {
    display: flex;
    align-items: center;
    gap: 10px;
}

.message-box .message-close {
    background: transparent;
    border: none;
    color: #ffffff;
    font-size: 18px;
    cursor: pointer;
}

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

/* 渐变背景 */
.gradient-bg {
    background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
}

.gradient-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
}

.gradient-secondary {
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
}

/* 响应式工具类 */
.hidden { display: none; }
.visible { display: block; }

/* 响应式断点 */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .btn {
        width: 100%;
    }
    
    .title-xl {
        font-size: var(--text-4xl);
    }
    
    .title-lg {
        font-size: var(--text-3xl);
    }
    
    .title-md {
        font-size: var(--text-2xl);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .title-xl {
        font-size: var(--text-3xl);
    }
    
    .title-lg {
        font-size: var(--text-2xl);
    }
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* 选择文本样式 */
::selection {
    background: var(--primary-color);
    color: var(--bg-primary);
}

/* 焦点样式 */
:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* 无障碍辅助 */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* 打印样式 */
@media print {
    * {
        background: transparent !important;
        color: black !important;
        box-shadow: none !important;
        text-shadow: none !important;
    }
    
    a,
    a:visited {
        text-decoration: underline;
    }
    
    .btn {
        border: 1px solid black;
    }
}

/* 导航栏样式（通用） */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(26, 32, 44, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(26, 32, 44, 0.95);
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    flex-shrink: 0;
}

.logo {
    width: 40px;
    height: 40px;
}

.brand-text {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 24px;
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: color var(--transition-normal);
    position: relative;
}

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary-color);
    border-radius: 1px;
}

/* 特殊样式的预售链接 */
.nav-link[href*="presale"] {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: #1a202c !important;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 600;
    margin-left: 0.5rem;
}

.nav-link[href*="presale"]:hover {
    background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(255, 215, 0, 0.3);
}

.nav-link[href*="presale"]::after {
    display: none;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* 语言切换（全局） */
.language-switcher {
    position: relative;
    display: inline-flex;
    align-items: center;
}

.language-select {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    padding: 6px 28px 6px 10px;
    font-size: var(--text-sm);
    font-weight: 500;
    line-height: 1.2;
    cursor: pointer;
    outline: none;
    transition: var(--transition-normal);
    appearance: none;
    backdrop-filter: blur(6px);
    min-width: 110px;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23e6e8f0' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 8px center;
    background-size: 14px;
}

.language-select:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--primary-color);
}

.language-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.18);
}

.navbar .language-select {
    height: 36px;
}

.language-select:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* 下拉选项（部分浏览器支持） */
.language-select option {
    background: #ffffff;
    color: #111111;
}

@media (max-width: 768px) {
    .nav-actions .language-select {
        min-width: 90px;
        padding: 4px 24px 4px 8px;
        font-size: 13px;
    }
}

.nav-toggle {
    display: none;
}

/* 移动端导航 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(26, 32, 44, 0.95);
        padding: 1rem 2rem;
        border-bottom: 1px solid var(--border-color);
        flex-direction: column;
        gap: 16px;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        background: transparent;
        border: 1px solid rgba(255, 255, 255, 0.2);
        border-radius: 8px;
        cursor: pointer;
    }
    
    .nav-toggle span {
        width: 20px;
        height: 2px;
        background: rgba(255, 255, 255, 0.9);
        display: block;
        margin: 3px 0;
        transition: var(--transition-normal);
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: translateY(5px) rotate(45deg);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: translateY(-5px) rotate(-45deg);
    }
}

/* ===== Footer (Global) ===== */
.footer {
    position: relative;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: #e6e8f0;
    overflow: hidden;
    padding: 80px 0 20px; /* 与首页保持一致 */
}

/* 用户中心下拉菜单（导航右上角） */
.user-dropdown { position: relative; --user-dropdown-width: calc(260px * 2 / 3); }
.user-dropdown details { position: relative; }
.user-dropdown summary { list-style: none; cursor: pointer; }
.user-dropdown summary::-webkit-details-marker { display: none; }
.user-dropdown summary:focus { outline: none; outline-offset: 0; }
.user-dropdown .dropdown-menu {
    position: absolute;
    right: 0;
    top: 100%;
    width: var(--user-dropdown-width);
    background: var(--bg-secondary);
    border: 1px solid rgba(255, 255, 255, 0.28);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 8px;
    z-index: 2000;
    list-style: none;
    margin: 0;
    max-height: 300px; /* 限制最大高度避免溢出 */
    overflow-y: auto;
}
.user-dropdown .dropdown-menu li { list-style: none; }
.user-dropdown .dropdown-menu a {
    display: flex;
    align-items: center;
    padding: 8px 10px;
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 6px;
    transition: background var(--transition-fast), color var(--transition-fast);
}
.user-dropdown .dropdown-menu a:hover { background: rgba(255, 255, 255, 0.08); }
.user-dropdown .dropdown-divider {
    border: none;
    height: 1px;
    background: var(--divider-color);
    margin: 8px 0;
}

/* 用户摘要（头像 + 名称 + 标签 + 箭头） */
.user-summary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: var(--spacing-sm) var(--spacing-lg);
    width: var(--user-dropdown-width);
}
.user-summary:hover {
  filter: brightness(1.05);
}
.avatar-circle {
    width: 28px; height: 28px; border-radius: 50%;
    display: inline-flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, rgba(255,255,255,0.12), rgba(255,255,255,0.06));
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-weight: 700;
}
.avatar-circle.sm { width: 24px; height: 24px; font-size: var(--text-xs); }
.user-info { display: flex; flex-direction: column; line-height: 1.1; min-width: 0; }
.user-name { font-size: var(--text-sm); font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: calc(var(--user-dropdown-width) - 90px); }
.user-label { font-size: var(--text-xs); color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: calc(var(--user-dropdown-width) - 90px); }
.caret { margin-left: 6px; transition: transform var(--transition-normal); opacity: 0.9; }
.user-dropdown details[open] .caret { transform: rotate(180deg); }

/* 下拉菜单头部用户信息 */
.dropdown-header { padding: 6px 8px 10px; }
.header-user { display: flex; align-items: center; gap: 10px; }
.header-meta { display: flex; flex-direction: column; min-width: 0; }
.header-meta .name { font-size: var(--text-sm); font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.header-meta .email { font-size: var(--text-xs); color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* 菜单项图标与退出样式 */
.dropdown-menu a .icon { margin-right: 8px; opacity: 0.9; }
.dropdown-menu a.logout { color: #ff6b6b; }
.dropdown-menu a.logout:hover { background: rgba(255, 107, 107, 0.12); }

/* 展开态高亮与下拉动效 */
.user-dropdown details[open] summary {
  background: var(--bg-secondary);
  border-color: var(--primary-color);
  border-width: 1px;
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
}
.user-dropdown details[open] .dropdown-menu {
  animation: dropdownIn var(--transition-normal) ease both;
  border-color: var(--primary-color);
  border-top-left-radius: 0;
  border-top-right-radius: 0;
  margin-top: -1px; /* 重叠1px避免双边框 */
}
@keyframes dropdownIn {
  0% { opacity: 0; transform: translateY(-4px) scale(0.98); }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}

@media (max-width: 768px) {
  .user-dropdown { --user-dropdown-width: calc(240px * 2 / 3); }
  .user-name, .user-label { max-width: calc(var(--user-dropdown-width) - 90px); }
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(15, 23, 42, 0.95) 0%, 
        rgba(30, 41, 59, 0.95) 100%);
    pointer-events: none;
    z-index: 1;
}

.footer-particles {
    position: absolute;
    inset: 0;
    pointer-events: none;
    background-image:
        radial-gradient(circle at 20% 20%, rgba(255, 215, 0, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 165, 0, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.02) 0%, transparent 50%);
    animation: footerFloat 40s ease-in-out infinite;
    z-index: 1;
}

@keyframes footerFloat {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-10px) rotate(180deg); }
}

.footer-content {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    margin-bottom: 40px;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr; /* 与首页一致的五列布局 */
    gap: 40px;
    z-index: 2;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.footer-logo {
    width: 32px;
    height: 32px;
    flex: 0 0 auto;
}

.footer-brand-text {
    font-size: 1.5rem;
    font-weight: 700;
    white-space: nowrap; /* 防止品牌文字换行 */
}

.footer-description {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    margin-bottom: 24px;
}

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

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.social-link:hover {
    background: linear-gradient(135deg, #FFD700, #FFA500);
    transform: translateY(-2px);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

.footer-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

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

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #fff;
}

.contact-info p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 8px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    padding-bottom: 20px; /* 增加底部内边距，避免被底部裁切 */
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 20px;
    padding-right: 20px;
    position: relative;
    z-index: 2;
}

.footer-copyright {
    color: rgba(255, 255, 255, 0.9);
}

.footer-copyright p {
    margin: 0; /* 与首页一致，确保版权文字不被外边距影响可见性 */
}

.footer-legal {
    display: flex;
    gap: 24px;
}

.footer-legal a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.footer-legal a:hover {
    color: #fff;
}

@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }
    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
}