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

.user-dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    user-select: none;
    padding: 4px 8px;
    border-radius: 40px;
    transition: background 0.2s;
}

.user-dropdown-toggle:hover {
    background: #f0f0f0;
}

.user-avatar-mini {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
}

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

.avatar-mini-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 14px;
    font-weight: 600;
}

.user-info-compact {
    display: flex;
    align-items: center;
    gap: 6px;
}

.header-level-badge {
    display: inline-flex;
    align-items: center;
    padding: 1px 8px;
    border-radius: 40px;
    font-size: 10px;
    font-weight: 700;
    color: white;
    line-height: 18px;
    flex-shrink: 0;
}

.dropdown-header {
    padding: 10px 18px 8px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.dropdown-level {
    font-size: 16px;
    font-weight: 700;
    color: #1a1a2e;
}

.dropdown-title {
    font-size: 12px;
    color: #6c86a3;
}

.user-dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 200px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.12);
    padding: 6px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px) scale(0.96);
    transition: all 0.2s ease;
    z-index: 9999;
    border: 1px solid #e5e7eb;
}

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

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 18px;
    color: #1a1a2e;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: background 0.15s;
    border: none;
    background: none;
    width: 100%;
    cursor: pointer;
}

.dropdown-item:hover {
    background: #f5f7fb;
}

.dropdown-item i {
    width: 18px;
    text-align: center;
    font-size: 14px;
    color: #6c86a3;
}

.dropdown-item.text-danger {
    color: #ef4444;
}

.dropdown-item.text-danger i {
    color: #ef4444;
}

.dropdown-item.text-danger:hover {
    background: #fef2f2;
}

.dropdown-divider {
    height: 1px;
    margin: 4px 12px;
    background: #e5e7eb;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .user-dropdown-menu {
        right: -10px;
        min-width: 180px;
    }
    .user-info-compact .username-compact {
        max-width: 60px;
    }
}

/* 微信登录按钮样式 */
.btn-wechat-login {
    background: #07C160;
    color: white;
    padding: 0.4rem 1rem;
    border-radius: 40px;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-wechat-login:hover {
    background: #06AD56;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(7, 193, 96, 0.3);
    color: white;
}

/* 移动端微信登录按钮 */
.mobile-wechat-login-btn {
    background: #07C160;
    color: white;
    padding: 10px 16px;
    border-radius: 40px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    margin-bottom: 8px;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.mobile-wechat-login-btn:hover {
    background: #06AD56;
    color: white;
}

/* ========== CSS重置和基础样式 ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
}

body {
    font-family: 'LXGW WenKai Screen', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #ffffff;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    /* 固定导航栏占位：统一挂在 body 上，避免被各页面 main 的类样式覆盖 */
    padding-top: 140px;
}

body, html {
    margin: 0;
    width: 100%;
    overflow-x: hidden;
}

/* 注意：body 不能在这里重置 padding，否则会覆盖上方为固定导航栏留出的 padding-top */
html {
    padding: 0;
}

.container {
    width: 100%;
    margin: 0 auto;
    padding: 0 20px;
}

.navbar .container,
.main-content .container,
.tools-section .container,
footer .container {
    max-width: none;
    width: 100%;
}

:root {
    --primary: #4361ee;
    --primary-light: #4895ef;
    --primary-dark: #3a0ca3;
    --primary-rgb: 67, 97, 238;
    --secondary: #7209b7;
    --success: #4cc9f0;
    --danger: #f72585;
    --warning: #f8961e;
    --info: #3a86ff;
    --light: #f8f9fa;
    --dark: #212529;
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-light: #999999;
    --border-color: #e0e0e0;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.15);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.2);
}

.navbar {
    background: white;
    box-shadow: var(--shadow-sm);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    width: 100%;
    margin: 0;
    padding: 0;
}

/* ========== 按钮波纹(main.js 动态插入的 .ripple) ==========
   必须绝对定位且不响应鼠标,否则会把导航链接等宿主按钮撑大,
   造成"点击后导航条突然放大再缩小"的布局跳动 */
.ripple {
    position: absolute;
    border-radius: 50%;
    background: currentColor;
    opacity: 0.18;
    pointer-events: none;
    transform: scale(0);
    animation: ripple-effect 0.6s ease-out forwards;
}

@keyframes ripple-effect {
    to {
        transform: scale(3);
        opacity: 0;
    }
}

/* ========== 返回顶部按钮(main.js 动态创建) ==========
   样式必须放在 header.css(全站公共),否则不加载 style.css 的页面
   (如 vip.php)会显示成浏览器默认灰色按钮 */
#back-to-top {
    position: fixed;
    right: 24px;
    bottom: 24px;
    width: 46px;
    height: 46px;
    border: none;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    font-size: 17px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 14px rgba(var(--primary-rgb), 0.35);
    opacity: 0;
    visibility: hidden;
    transform: translateY(16px) scale(0.8);
    transition: opacity 0.3s ease, transform 0.3s cubic-bezier(0.22, 1, 0.36, 1),
                background 0.3s ease, box-shadow 0.3s ease;
    z-index: 900;
    -webkit-tap-highlight-color: transparent;
}

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

#back-to-top:hover {
    background: var(--primary-dark, #3a86ff);
    box-shadow: 0 8px 22px rgba(var(--primary-rgb), 0.45);
    transform: translateY(-3px);
}

#back-to-top:active {
    transform: translateY(0) scale(0.92);
}

@media (max-width: 768px) {
    #back-to-top {
        right: 16px;
        bottom: 16px;
        width: 42px;
        height: 42px;
        font-size: 15px;
    }
}

.navbar > .container {
    padding: 0 20px;
    max-width: none;
    width: 100%;
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0;
    width: 100%;
}

/* 导航栏占位已移至 body 的 padding-top（见上方 body 规则），
   此处不再用 main 的 margin-top，避免被 .article-container / .vip-main-content 等类样式覆盖 */
@media (max-width: 768px) {
    body {
        padding-top: 60px;
    }
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.logo-with-icon {
    display: flex;
    align-items: center;
    text-decoration: none;
    gap: 0.8rem;
}

.footer-logo-icon {
    width: 120px;
    height: 60px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.footer-logo-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.footer-logo-text {
    font-size: 1.4rem;
    font-weight: 700;
    background: linear-gradient(135deg, #0066cc 0%, #4dabf7 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 0.5px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    padding: 0.5rem 0.8rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    font-size: 0.95rem;
}

.nav-link:hover {
    color: var(--primary);
    background: rgba(var(--primary-rgb), 0.05);
}

.nav-link.active {
    color: var(--primary);
    background: rgba(var(--primary-rgb), 0.1);
    font-weight: 600;
}

.nav-badge {
    background: var(--danger);
    color: white;
    font-size: 0.7rem;
    padding: 0.1rem 0.4rem;
    border-radius: 10px;
    margin-left: 0.3rem;
    font-weight: 600;
}

.search-area {
    flex: 1;
    max-width: 500px;
    margin: 0 2rem;
}

.search-form {
    position: relative;
}

.search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
    font-size: 0.9rem;
}

.search-input {
    width: 100%;
    padding: 0.8rem 1rem 0.8rem 2.5rem;
    border: 1px solid var(--border-color);
    border-radius: 25px;
    font-size: 0.9rem;
    color: var(--text-primary);
    background: #f8f9fa;
    transition: all 0.3s ease;
}

.search-input:focus {
    outline: none;
    border-color: var(--primary);
    background: white;
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.1);
}

/* 卡密登录相关样式 */
.card-login-btn-nav {
    background: linear-gradient(135deg, #0066cc, #4dabf7);
    color: white;
    padding: 0.4rem 1rem;
    border-radius: 40px;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.card-login-btn-nav:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.3);
}

.card-user-info {
    display: flex;
    align-items: center;
    gap: 12px;
    background: linear-gradient(135deg, #f0f7ff, #e8f0fe);
    padding: 0.4rem 1rem;
    border-radius: 40px;
    border: 1px solid #cce0ff;
}

.card-user-avatar {
    width: 30px;
    height: 30px;
    background: linear-gradient(135deg, #0066cc, #4dabf7);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 14px;
}

.card-user-detail {
    display: flex;
    flex-direction: column;
}

.card-user-name {
    font-size: 13px;
    font-weight: 600;
    color: #1a2a3a;
}

.card-user-vip {
    font-size: 11px;
    color: #0066cc;
    display: flex;
    align-items: center;
    gap: 4px;
}

.card-user-vip .remain-time {
    background: #e6f0ff;
    padding: 2px 6px;
    border-radius: 20px;
    font-size: 10px;
    font-weight: 600;
    color: #0066cc;
}

.card-user-vip.urgent .remain-time {
    background: #fee2e2;
    color: #dc2626;
}

.card-logout-btn {
    background: rgba(0, 102, 204, 0.1);
    color: #0066cc;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all 0.2s;
}

.card-logout-btn:hover {
    background: #fee2e2;
    color: #dc2626;
    transform: rotate(10deg);
}

/* 卡密登录弹窗 */
.card-login-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.card-login-modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.card-login-modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    background: white;
    border-radius: 32px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    z-index: 10001;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    width: 90%;
    max-width: 420px;
    overflow: hidden;
}

.card-login-modal.active {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, -50%) scale(1);
}

.card-login-modal-header {
    background: linear-gradient(135deg, #0066cc, #4dabf7);
    padding: 24px;
    text-align: center;
    color: white;
}

.card-login-modal-header h3 {
    font-size: 22px;
    margin-bottom: 8px;
}

.card-login-modal-header p {
    font-size: 13px;
    opacity: 0.85;
}

.card-login-modal-body {
    padding: 28px;
}

.card-login-form-group {
    margin-bottom: 24px;
}

.card-login-form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: #1a2a3a;
    margin-bottom: 8px;
}

.card-login-input-group {
    position: relative;
}

.card-login-input-group input {
    width: 100%;
    padding: 14px 16px;
    border: 1.5px solid #cce0ff;
    border-radius: 20px;
    font-size: 15px;
    font-family: inherit;
    transition: all 0.2s;
    outline: none;
}

.card-login-input-group input:focus {
    border-color: #0066cc;
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.card-login-input-group .icon {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: #99b8e0;
}

.card-login-btn {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, #0066cc, #4dabf7);
    color: white;
    border: none;
    border-radius: 40px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.card-login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(0, 102, 204, 0.4);
}

.card-login-modal-footer {
    text-align: center;
    padding: 16px 28px 28px;
    border-top: 1px solid #e6f0ff;
    font-size: 13px;
    color: #6c86a3;
}

.card-login-modal-footer a {
    color: #0066cc;
    text-decoration: none;
}

.pricing-mini {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-top: 12px;
}

.pricing-mini-item {
    text-align: center;
    padding: 4px 12px;
    background: #f8fbff;
    border-radius: 20px;
}

.pricing-mini-item .days {
    font-weight: 700;
    color: #0066cc;
}

.pricing-mini-item .price {
    font-size: 11px;
    color: #6c86a3;
}

/* 用户操作区域 */
.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-actions-desktop {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.username-compact {
    background: var(--light);
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.3rem;
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    cursor: default;
}

.username-compact.vip-user {
    background: linear-gradient(135deg, #ffecb3 0%, #ffd54f 100%);
    color: #8a6d0b;
    border: 1px solid #ffb300;
}

.username-compact.permanent-vip {
    background: linear-gradient(135deg, #b8e2f2 0%, #5cc1e6 100%);
    color: #0d5b83;
    border: 1px solid #2ea8e5;
    box-shadow: 0 2px 8px rgba(44, 168, 229, 0.3);
}

.admin-tag-mini {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 12px;
    padding: 0 4px;
    margin-left: 5px;
    vertical-align: middle;
}

.admin-tag-mini img {
    width: 30px;
    height: 16px;
    vertical-align: middle;
}

.badges-desktop {
    display: flex;
    align-items: center;
    gap: 0.7rem;
}

.permanent-vip-badge-compact {
    background: linear-gradient(135deg, rgba(92, 193, 230, 0.9) 0%, rgba(32, 126, 210, 0.9) 50%, rgba(12, 84, 156, 0.9) 100%);
    color: white;
    border: 1px solid #2ea8e5;
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-weight: 600;
    text-decoration: none;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    min-width: 60px;
    justify-content: center;
    cursor: default;
}

.vip-badge-compact {
    background: linear-gradient(135deg, #ffecb3 0%, #ffd54f 100%);
    color: #5d4037;
    border: 1px solid #ffb300;
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-weight: 500;
    transition: all 0.3s ease;
    min-width: 50px;
    justify-content: center;
    cursor: default;
}

.card-vip-badge {
    background: linear-gradient(135deg, #0066cc, #4dabf7);
    color: white;
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-weight: 600;
    min-width: 50px;
    justify-content: center;
    cursor: default;
}

.vip-unlock-btn-compact {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    color: white;
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    transition: all 0.3s ease;
    min-width: 60px;
    justify-content: center;
}

.vip-unlock-btn-compact:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(var(--primary-rgb), 0.3);
}

.admin-btn-compact {
    background: rgba(var(--primary-rgb), 0.1);
    color: var(--primary);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.admin-btn-compact:hover {
    background: rgba(var(--primary-rgb), 0.2);
    transform: rotate(30deg);
}

.logout-btn-mini {
    background: var(--light);
    color: var(--text-secondary);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all 0.3s ease;
}

.logout-btn-mini:hover {
    background: #f0f0f0;
    color: var(--primary);
    transform: rotate(10deg);
}

.auth-buttons {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.btn-outline-sm,
.btn-primary-sm {
    padding: 0.5rem 1.2rem;
    font-size: 0.9rem;
    border-radius: 20px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    border: none;
}

.btn-outline-sm {
    background: white;
    color: var(--primary);
    border: 1px solid var(--primary);
}

.btn-outline-sm:hover {
    background: rgba(var(--primary-rgb), 0.05);
    transform: translateY(-2px);
}

.btn-primary-sm {
    background: var(--primary);
    color: white;
    border: 1px solid var(--primary);
}

.btn-primary-sm:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

/* 登录弹窗样式 */
.auth-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    z-index: 20000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.auth-modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.auth-modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    background: white;
    border-radius: 20px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    z-index: 20001;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    width: 90%;
    max-width: 400px;
    max-height: 90vh;
    overflow: hidden;
}

.auth-modal.active {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, -50%) scale(1);
}

.auth-modal-header {
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: white;
}

.auth-modal-title {
    font-size: 20px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 12px;
}

.auth-modal-close {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 18px;
}

.auth-modal-body {
    padding: 32px;
    overflow-y: auto;
    max-height: calc(90vh - 150px);
}

.auth-form-group {
    margin-bottom: 24px;
}

.auth-form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 14px;
}

.auth-input-group {
    position: relative;
}

.auth-input {
    width: 100%;
    padding: 14px 16px 14px 44px;
    border: 1.5px solid var(--border-color);
    border-radius: 10px;
    font-size: 15px;
    color: var(--text-primary);
    background: white;
    transition: all 0.2s ease;
    outline: none;
}

.auth-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
}

.auth-input-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
    font-size: 16px;
}

.auth-password-toggle {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    padding: 4px;
}

.auth-submit-btn {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.auth-submit-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(67, 97, 238, 0.3);
}

.auth-submit-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.auth-alert {
    padding: 14px 16px;
    border-radius: 10px;
    margin-bottom: 24px;
    display: none;
    align-items: center;
    gap: 10px;
    font-size: 14px;
}

.auth-alert.error {
    background: #fef2f2;
    color: #ef4444;
    border: 1px solid #fecaca;
    display: flex;
}

.auth-alert.success {
    background: #f0fdf4;
    color: #16a34a;
    border: 1px solid #bbf7d0;
    display: flex;
}

.auth-remember {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 24px;
    cursor: pointer;
}

.auth-checkbox {
    width: 18px;
    height: 18px;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    position: relative;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.auth-checkbox.checked {
    background: var(--primary);
    border-color: var(--primary);
}

.auth-checkbox.checked::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 12px;
    font-weight: bold;
}

/* ========== 移动端样式 ========== */
.mobile-only {
    display: none !important;  /* 电脑端默认隐藏 */
}

.mobile-header-right.mobile-only {
    display: none;
}

.mobile-logo-mini {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--primary);
    font-weight: 600;
}

.mobile-logo-mini img {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.mobile-logo-mini span {
    font-size: 1rem;
    font-weight: 700;
    background: linear-gradient(135deg, #0066cc 0%, #4dabf7 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.mobile-menu-btn {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.3rem;
    cursor: pointer;
    padding: 0.5rem;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    transition: all 0.3s ease;
    z-index: 1001;
}

.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(3px);
    -webkit-backdrop-filter: blur(3px);
    z-index: 9998;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.mobile-menu-sidebar {
    position: fixed;
    top: 0;
    right: -280px;
    width: 280px;
    height: 100vh;
    background: white;
    z-index: 9999;
    box-shadow: -2px 0 20px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    transition: right 0.3s ease;
}

.mobile-menu-sidebar.active {
    right: 0;
}

.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-color);
    background: linear-gradient(135deg, #f0f7ff, #e8f0fe);
}

.mobile-menu-links {
    padding: 8px 0;
    flex: 1;
}

.mobile-menu-link {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 12px 16px;
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.2s ease;
    font-size: 15px;
    font-weight: 500;
}

.mobile-menu-link:hover,
.mobile-menu-link:active {
    background: #f0f7ff;
    color: var(--primary);
}

.mobile-menu-link.active {
    background: rgba(67, 97, 238, 0.08);
    color: var(--primary);
    font-weight: 600;
    border-right: 3px solid var(--primary);
}

.mobile-auth-section {
    padding: 14px 16px;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 10px;
    background: #fafafa;
}

.mobile-auth-btn {
    width: 100%;
    padding: 12px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s ease;
}

.mobile-auth-btn:active {
    transform: scale(0.97);
    opacity: 0.9;
}

.mobile-card-login-btn {
    background: linear-gradient(135deg, #0066cc, #4dabf7);
    color: white;
    border: none;
    padding: 12px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.mobile-card-login-btn:active {
    transform: scale(0.97);
    opacity: 0.9;
}

/* ========== 响应式 ========== */
@media (max-width: 768px) {
    /* 桌面端元素隐藏 */
    .desktop-only {
        display: none !important;
    }
    
    /* 手机端元素显示 */
    .mobile-only {
        display: flex !important;  /* ← 确保这里已经有 !important */
    }
    /* ===== 手机端导航 - 水平一行布局 ===== */
    .mobile-header-right.mobile-only {
        display: flex !important;
        flex-direction: row !important;
        align-items: center !important;
        width: 100% !important;
        padding: 0 0 0 10px !important;
        gap: 8px !important;
        flex-wrap: nowrap !important;
    }
    
    /* 手机端 Logo 在左侧，间距自动推到右侧 */
    .mobile-header-right.mobile-only .mobile-logo-mini {
        flex-shrink: 0 !important;
    }
    
    /* 中间用户信息区 */
    .mobile-header-right.mobile-only .mobile-user-info-wrap {
        flex: 1 1 auto !important;
        min-width: 0 !important;
        display: flex !important;
        align-items: center !important;
        justify-content: flex-end !important;
    }
    
    /* 菜单按钮始终在最右侧贴边 */
    .mobile-header-right.mobile-only .mobile-menu-btn-wrap {
        flex-shrink: 0 !important;
    }
    
    /* 手机端 Logo 样式 */
    .mobile-logo-mini {
        display: flex !important;
        align-items: center !important;
        gap: 6px !important;
        text-decoration: none !important;
        flex-shrink: 0 !important;
    }
    
    .mobile-logo-mini img {
        width: 30px !important;
        height: 30px !important;
        object-fit: contain !important;
        flex-shrink: 0 !important;
        border-radius: 6px !important;
    }
    
    .mobile-logo-mini span {
        font-size: 0.95rem !important;
        font-weight: 700 !important;
        background: linear-gradient(135deg, #0066cc 0%, #4dabf7 100%);
        -webkit-background-clip: text !important;
        background-clip: text !important;
        -webkit-text-fill-color: transparent !important;
        display: inline !important;
        white-space: nowrap !important;
    }
    
    /* 手机端菜单按钮 */
    .mobile-menu-btn {
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
        background: #f5f5f5 !important;
        border: 1px solid #e5e7eb !important;
        color: var(--text-primary) !important;
        font-size: 1.2rem !important;
        cursor: pointer !important;
        padding: 0 !important;
        width: 38px !important;
        height: 38px !important;
        border-radius: 10px !important;
        transition: all 0.2s ease !important;
    }
    
    .mobile-menu-btn:active {
        background: #e5e7eb !important;
        transform: scale(0.95) !important;
    }
    
    /* 🔥 关键：手机端隐藏桌面用户菜单 */
    .user-actions-desktop {
        display: none !important;
    }
    
    .user-dropdown {
        display: none !important;
    }
    
    .badges-desktop {
        display: none !important;
    }
    
    .user-info-mobile {
        display: none !important;
    }
    
    /* 导航链接隐藏 */
    .nav-links {
        display: none !important;
    }
    
    /* 手机端导航栏高度优化 */
    .navbar {
        padding: 6px 0 !important;
    }
    
    .navbar > .container {
        padding: 0 0 0 8px !important;
    }
    
    .nav-content {
        padding: 6px 0 !important;
    }
    
    .nav-actions {
        width: 100%;
    }
}

/* ========== VIP徽章呼吸动画（替代 JS setInterval，避免常驻定时器） ========== */
@keyframes vipBadgePulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

.vip-badge-3d {
    animation: vipBadgePulse 3s ease-in-out infinite;
}