/* ============================================================
   红V基地Token成长公示系统 - 全局样式 (明亮清新版)
   ============================================================ */

/* ---- CSS 变量 ---- */
:root {
    --primary: #e53935;          /* 红V主题红 */
    --primary-light: #ffcdd2;
    --primary-dark: #b71c1c;
    --primary-bg: #fef2f2;

    --accent: #f97316;           /* 橙色 */
    --success: #16a34a;
    --danger: #dc2626;
    --warning: #f59e0b;
    --info: #2563eb;

    --bg: #f5f5f5;               /* 浅灰背景 */
    --bg-card: #ffffff;           /* 白色卡片 */
    --bg-nav: #ffffff;
    --bg-input: #ffffff;
    --bg-sidebar: #f8fafc;

    --text: #1e293b;              /* 深蓝灰文字 */
    --text-muted: #64748b;
    --text-bright: #0f172a;
    --text-white: #ffffff;

    --border: #e2e8f0;
    --border-light: #f1f5f9;
    --shadow: rgba(0, 0, 0, 0.08);
    --shadow-card: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
    --shadow-hover: 0 4px 12px rgba(0,0,0,0.1);

    --radius: 8px;
    --radius-sm: 6px;
    --max-width: 1400px;
    --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

/* ---- Reset ---- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 15px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    color: var(--primary);
    text-decoration: none;
}

a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* ---- 导航栏 ---- */
.navbar {
    background: var(--bg-nav);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    height: 56px;
    gap: 8px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-bright);
    font-weight: 700;
    font-size: 1.1rem;
    white-space: nowrap;
    text-decoration: none;
}

.nav-brand:hover {
    text-decoration: none;
}

.brand-icon {
    font-size: 1.3rem;
}

.brand-text {
    display: none;
}

@media (min-width: 640px) {
    .brand-text { display: inline; }
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text);
    font-size: 1.5rem;
    cursor: pointer;
    margin-left: auto;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: auto;
}

.nav-link {
    padding: 7px 14px;
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: 0.9rem;
    transition: all 0.2s;
    white-space: nowrap;
    text-decoration: none;
}

.nav-link:hover {
    background: var(--primary-bg);
    color: var(--primary);
    text-decoration: none;
}

.nav-admin {
    color: var(--primary);
    font-weight: 600;
}

.nav-register {
    background: var(--primary);
    color: white;
    border-radius: var(--radius-sm);
    font-weight: 600;
}

.nav-register:hover {
    background: var(--primary-dark);
    color: white;
}

.nav-user {
    color: var(--text-muted);
    font-size: 0.85rem;
    padding: 0 8px;
}

@media (max-width: 768px) {
    .nav-toggle { display: block; }

    .nav-menu {
        display: none;
        position: absolute;
        top: 56px;
        left: 0;
        right: 0;
        background: var(--bg-nav);
        flex-direction: column;
        padding: 12px;
        border-bottom: 1px solid var(--border);
        box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    }

    .nav-menu.open { display: flex; }

    .nav-link {
        width: 100%;
        padding: 10px 16px;
    }
}

/* ---- Flash 消息 ---- */
.flash-container {
    max-width: var(--max-width);
    margin: 8px auto 0;
    padding: 0 20px;
    width: 100%;
}

.flash-message {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    animation: slideDown 0.3s ease;
    border: 1px solid;
}

@keyframes slideDown {
    from { transform: translateY(-20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.flash-success { background: #f0fdf4; border-color: #86efac; color: #16a34a; }
.flash-danger { background: #fef2f2; border-color: #fca5a5; color: #dc2626; }
.flash-warning { background: #fffbeb; border-color: #fde68a; color: #d97706; }
.flash-info { background: #eff6ff; border-color: #93c5fd; color: #2563eb; }

.flash-close {
    background: none;
    border: none;
    color: inherit;
    cursor: pointer;
    font-size: 1rem;
    opacity: 0.6;
    padding: 0 4px;
}

.flash-close:hover { opacity: 1; }

/* ---- 主内容 ---- */
.main-content {
    flex: 1;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 20px;
    width: 100%;
}

/* ---- 页脚 ---- */
.footer {
    text-align: center;
    padding: 24px;
    color: var(--text-muted);
    font-size: 0.85rem;
    border-top: 1px solid var(--border);
    margin-top: 40px;
    background: var(--bg-card);
}

/* ---- 认证页面 ---- */
.auth-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 70vh;
    padding: 20px;
}

.auth-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 36px;
    width: 100%;
    max-width: 440px;
    box-shadow: var(--shadow-card);
}

.auth-card h2 {
    text-align: center;
    margin-bottom: 24px;
    color: var(--text-bright);
    font-size: 1.4rem;
    font-weight: 700;
}

.auth-link {
    text-align: center;
    margin-top: 16px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.auth-link a {
    color: var(--primary);
    font-weight: 600;
}

/* ---- 表单 ---- */
.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 0.9rem;
    color: var(--text-bright);
    font-weight: 500;
}

.form-input {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: 0.95rem;
    transition: border-color 0.2s, box-shadow 0.2s;
    font-family: var(--font);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(229, 57, 53, 0.1);
}

.form-input-sm {
    padding: 6px 10px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text);
    font-size: 0.85rem;
    max-width: 200px;
}

.form-textarea {
    resize: vertical;
    min-height: 80px;
}

.form-row {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.form-row .form-group {
    flex: 1;
    min-width: 150px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 0.95rem;
    padding: 8px 0;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
}

select.form-input { cursor: pointer; }

/* ---- 按钮 ---- */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
    font-family: var(--font);
    text-decoration: none;
    white-space: nowrap;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-hover);
    text-decoration: none;
}

.btn-primary {
    background: var(--primary);
    color: white;
}
.btn-primary:hover { background: var(--primary-dark); }

.btn-success {
    background: var(--success);
    color: white;
}
.btn-success:hover { background: #15803d; }

.btn-danger {
    background: var(--danger);
    color: white;
}
.btn-danger:hover { background: #b91c1c; }

.btn-warning {
    background: var(--warning);
    color: #1a1a2e;
}
.btn-warning:hover { background: #d97706; }

.btn-info {
    background: var(--info);
    color: white;
}
.btn-info:hover { background: #1d4ed8; }

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
}
.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    box-shadow: none;
}

.btn-sm {
    padding: 6px 14px;
    font-size: 0.82rem;
}

.btn-block { display: block; width: 100%; }

/* ---- TAB 切换 ---- */
.tabs {
    display: flex;
    gap: 4px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding: 4px 0;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--border);
    background: var(--bg-card);
    padding: 6px 12px;
    border-radius: var(--radius) var(--radius) 0 0;
}

.tab-btn {
    flex-shrink: 0;
    padding: 10px 20px;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 0.92rem;
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: all 0.2s;
    font-family: var(--font);
    white-space: nowrap;
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}

.tab-btn:hover {
    color: var(--text-bright);
    background: var(--primary-bg);
}

.tab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
    font-weight: 600;
    background: var(--primary-bg);
}

.tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ---- 卡片 ---- */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 14px;
    overflow: hidden;
    transition: box-shadow 0.2s;
    box-shadow: var(--shadow-card);
}

.card:hover {
    box-shadow: var(--shadow-hover);
}

.card-pinned {
    border-left: 4px solid var(--warning);
}

.card-highlighted {
    border-left: 4px solid var(--primary);
    background: var(--primary-bg);
}

.card-header {
    padding: 14px 20px;
    font-weight: 600;
    color: var(--text-bright);
    border-bottom: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    font-size: 1rem;
}

.card-body {
    padding: 16px 20px;
    line-height: 1.8;
    color: var(--text);
    font-size: 0.95rem;
}

.card-footer {
    padding: 12px 20px;
    border-top: 1px solid var(--border-light);
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: center;
    background: #fafafa;
}

/* ---- Badge ---- */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 4px;
    font-size: 0.78rem;
    font-weight: 600;
}

.badge-pin {
    background: #fffbeb;
    color: #b45309;
}

.badge-hot {
    background: #fef2f2;
    color: #dc2626;
}

.badge-info {
    background: #eff6ff;
    color: #1d4ed8;
}

/* ---- 表格 ---- */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin-bottom: 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    min-width: 600px;
}

.table thead {
    background: var(--bg-sidebar);
    position: sticky;
    top: 0;
    z-index: 2;
}

.table th, .table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-light);
    white-space: nowrap;
}

.table th {
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.table tbody tr:hover {
    background: #fafafa;
}

.table-sm th, .table-sm td {
    padding: 8px 12px;
    font-size: 0.85rem;
}

/* ---- 操作按钮列特殊处理 ---- */
.action-cell {
    white-space: nowrap;
    display: flex;
    gap: 6px;
    align-items: center;
}

.action-cell .btn {
    padding: 5px 12px;
    font-size: 0.8rem;
}

/* ---- Token 排名 ---- */
.rank-gold { background: rgba(251, 191, 36, 0.08); }
.rank-silver { background: rgba(148, 163, 184, 0.08); }
.rank-bronze { background: rgba(217, 119, 6, 0.08); }

.rank-num {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-muted);
}

.rank-gold .rank-num { color: #b45309; }
.rank-silver .rank-num { color: #475569; }
.rank-bronze .rank-num { color: #9a3412; }

.token-value {
    font-weight: 700;
    color: var(--accent);
    font-size: 1.05rem;
}

.addr-masked {
    color: var(--text-muted);
    font-family: 'SF Mono', 'Courier New', monospace;
    font-size: 0.85rem;
    letter-spacing: 0.3px;
}

.change-positive { color: var(--success); font-weight: 600; }
.change-negative { color: var(--danger); font-weight: 600; }

/* ---- 分页 ---- */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 14px;
    padding: 20px 0;
}

.page-link {
    padding: 8px 18px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: 0.9rem;
    transition: all 0.2s;
    text-decoration: none;
}

.page-link:hover {
    border-color: var(--primary);
    color: var(--primary);
    text-decoration: none;
}

.page-info {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ---- 状态徽章 ---- */
.status-badge {
    display: inline-block;
    padding: 3px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.status-pending {
    background: #fffbeb;
    color: #b45309;
}
.status-active, .status-approve, .status-approved {
    background: #f0fdf4;
    color: #15803d;
}
.status-banned, .status-rejected {
    background: #fef2f2;
    color: #b91c1c;
}
.status-restricted {
    background: #eff6ff;
    color: #1d4ed8;
}
.status-withdrawn {
    background: #f8fafc;
    color: #64748b;
}
.status-closed {
    background: #f8fafc;
    color: #64748b;
}
.status-inactive {
    background: #f8fafc;
    color: #64748b;
}

/* ---- 空状态 ---- */
.empty-state {
    text-align: center;
    padding: 48px 20px;
    color: var(--text-muted);
    font-size: 1rem;
    background: var(--bg-card);
    border: 1px dashed var(--border);
    border-radius: var(--radius);
}

/* ---- 管理后台 ---- */
.admin-page {
    display: flex;
    gap: 20px;
}

.admin-sidebar {
    width: 200px;
    flex-shrink: 0;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px;
    position: sticky;
    top: 72px;
    height: fit-content;
    max-height: calc(100vh - 90px);
    overflow-y: auto;
    box-shadow: var(--shadow-card);
}

.admin-sidebar h3 {
    color: var(--text-bright);
    margin-bottom: 14px;
    font-size: 1rem;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-light);
    font-weight: 700;
}

.admin-nav-link {
    display: block;
    padding: 9px 14px;
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: 0.88rem;
    margin-bottom: 4px;
    transition: all 0.2s;
    text-decoration: none;
}

.admin-nav-link:hover {
    background: var(--primary-bg);
    color: var(--primary);
    text-decoration: none;
}

.admin-nav-link.active {
    background: var(--primary-bg);
    color: var(--primary);
    font-weight: 600;
}

.admin-content {
    flex: 1;
    min-width: 0;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow-card);
    min-height: 500px;
}

.admin-content h2 {
    color: var(--text-bright);
    margin-bottom: 20px;
    font-size: 1.3rem;
    font-weight: 700;
}

@media (max-width: 900px) {
    .admin-page {
        flex-direction: column;
    }

    .admin-sidebar {
        width: 100%;
        position: static;
        display: flex;
        flex-wrap: wrap;
        gap: 6px;
        padding: 14px;
    }

    .admin-sidebar h3 {
        width: 100%;
        margin-bottom: 6px;
    }

    .admin-nav-link {
        padding: 7px 12px;
        font-size: 0.82rem;
    }

    .admin-content {
        padding: 16px;
    }
}

/* ---- 仪表盘 ---- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 14px;
    margin-bottom: 28px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px;
    text-align: center;
    box-shadow: var(--shadow-card);
    transition: box-shadow 0.2s;
}

.stat-card:hover {
    box-shadow: var(--shadow-hover);
}

.stat-number {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: 6px;
}

.quick-links {
    margin-top: 24px;
}

.quick-links h3 {
    color: var(--text-bright);
    margin-bottom: 14px;
    font-size: 1.05rem;
}

.quick-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
}

.quick-link {
    display: block;
    padding: 16px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    text-align: center;
    font-size: 0.95rem;
    transition: all 0.2s;
    text-decoration: none;
    box-shadow: var(--shadow-card);
}

.quick-link:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
    text-decoration: none;
}

/* ---- 过滤器 ---- */
.filter-bar {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 18px;
    padding: 12px;
    background: var(--bg-sidebar);
    border-radius: var(--radius);
}

/* ---- 用户页面 ---- */
.user-page {
    max-width: 1200px;
    margin: 0 auto;
}

.user-profile-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: var(--shadow-card);
}

.user-profile-card h2 {
    color: var(--text-bright);
    margin-bottom: 22px;
    font-size: 1.3rem;
    font-weight: 700;
}

.user-profile-card h3 {
    color: var(--text-bright);
    margin: 24px 0 14px;
    font-size: 1.1rem;
    font-weight: 600;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-light);
}

.token-summary {
    display: flex;
    gap: 16px;
    margin-bottom: 28px;
    flex-wrap: wrap;
}

.token-stat {
    flex: 1;
    min-width: 140px;
    text-align: center;
    padding: 24px;
    background: var(--primary-bg);
    border: 1px solid var(--primary-light);
    border-radius: var(--radius);
}

.token-stat-label {
    display: block;
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 10px;
}

.token-stat-value {
    display: block;
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--primary);
}

.info-card {
    background: var(--bg-sidebar);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 16px 20px;
    margin-bottom: 18px;
}

.info-card h4 {
    color: var(--text-bright);
    margin-bottom: 10px;
    font-size: 0.95rem;
    font-weight: 600;
}

.info-card p {
    margin-bottom: 6px;
    font-size: 0.9rem;
    color: var(--text);
}

.action-links {
    display: flex;
    gap: 12px;
    margin-top: 24px;
    flex-wrap: wrap;
}

.activity-card {
    background: var(--bg-sidebar);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    margin-bottom: 10px;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
    font-size: 0.9rem;
    color: var(--text);
}

/* ---- 弹窗 ---- */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    width: 90%;
    max-width: 400px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}

.modal-content h3 {
    color: var(--text-bright);
    margin-bottom: 18px;
    font-weight: 700;
}

/* ---- 工具类 ---- */
.text-muted { color: var(--text-muted); }
.text-danger { color: var(--danger); }
.text-bright { color: var(--text-bright); }

hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 22px 0;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
    padding: 12px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
}

.section-header h2 {
    color: var(--text-bright);
    font-size: 1.15rem;
    font-weight: 700;
}

.alert {
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    margin: 14px 0;
    font-size: 0.9rem;
}

.alert-warning {
    background: #fffbeb;
    border: 1px solid #fde68a;
    color: #b45309;
}

/* ---- 首页特殊样式 ---- */
.index-page .card-body {
    color: var(--text);
    font-size: 0.95rem;
    line-height: 1.8;
}

.index-page .card-header {
    font-size: 1.05rem;
    font-weight: 600;
}

/* ---- 响应式修复 ---- */
@media (max-width: 480px) {
    .auth-card {
        padding: 22px 16px;
    }

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

    .token-stat-value {
        font-size: 1.5rem;
    }

    .tabs {
        padding: 4px 0;
    }

    .tab-btn {
        padding: 8px 12px;
        font-size: 0.82rem;
    }

    .table th, .table td {
        padding: 10px 12px;
        font-size: 0.82rem;
    }

    .form-row {
        flex-direction: column;
        gap: 0;
    }

    .admin-content {
        padding: 14px;
    }

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

/* ============================================================
   H5 手机端适配（追加优化）
   ============================================================ */

/* 基础：防止 iOS 缩放 */
@media (max-width: 768px) {
    html { font-size: 14px; }
    .main-content { padding: 10px 12px; }

    /* 卡片统一缩紧 */
    .card, .user-profile-card, .info-card, .auth-card {
        padding: 14px;
        margin-bottom: 12px;
    }

    /* 首页 TAB 可横向滑动 */
    .tabs {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        white-space: nowrap;
        flex-wrap: nowrap;
        gap: 0;
        padding: 6px 0;
    }
    .tab-btn {
        flex-shrink: 0;
        padding: 8px 14px;
        font-size: 0.85rem;
    }
    .tab-content { padding: 12px 0; }

    /* 表单元素触摸优化 */
    .form-input, select.form-input, textarea.form-input {
        padding: 10px 12px;
        font-size: 16px;  /* iOS 防自动缩放 */
    }
    .btn {
        padding: 10px 18px;
        font-size: 0.9rem;
    }
    .btn-block { padding: 12px; }

    /* Token 摘要区纵向排列 */
    .token-summary { flex-direction: column; gap: 8px; }
    .token-stat { padding: 10px; }

    /* 操作按钮组纵向 */
    .action-links { flex-direction: column; gap: 8px; }
    .action-links .btn { width: 100%; text-align: center; }

    /* 管理后台侧边栏优化 */
    .admin-sidebar { padding: 10px; gap: 4px; }
    .admin-nav-link { padding: 6px 10px; font-size: 0.8rem; }

    /* 管理后台表格优化 */
    .admin-content .table th,
    .admin-content .table td {
        padding: 8px 10px;
        font-size: 0.8rem;
    }

    /* 搜索/筛选行 */
    .search-form, .filter-form {
        flex-direction: column;
        gap: 8px;
    }
    .search-form .form-input,
    .filter-form .form-input,
    .search-form .btn,
    .filter-form .btn {
        width: 100%;
    }

    /* 首页统计卡片 */
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }
    .stat-card { padding: 14px; }
    .stat-number { font-size: 1.6rem; }

    /* 模态框手机适配 */
    .modal-content {
        margin: 20px 12px;
        padding: 18px;
        max-height: 85vh;
    }

    /* section-header */
    .section-header {
        flex-direction: column;
        gap: 8px;
        align-items: flex-start;
        padding: 10px 14px;
    }
    .section-header .btn { width: 100%; }

    /* 组合质押 badge */
    .badge { font-size: 0.75rem; padding: 3px 6px; }

    /* 表单多列布局变单列 */
    .form-row { flex-direction: column; gap: 0; }

    /* 个人中心 */
    .user-page .user-profile-card { padding: 14px; }

    /* 公告列表 */
    .announcement-item { padding: 12px; }
}

/* 小屏手机（< 420px）进一步缩紧 */
@media (max-width: 420px) {
    html { font-size: 13px; }
    .main-content { padding: 8px 10px; }
    .card, .user-profile-card, .info-card { padding: 10px; }
    .table th, .table td { padding: 6px 8px; font-size: 0.75rem; }
    .tab-btn { padding: 6px 10px; font-size: 0.78rem; }
    .admin-content { padding: 10px; }

    /* 首页2列布局调小 */
    .stats-grid { gap: 6px; }
    .stat-card { padding: 10px; }
    .stat-number { font-size: 1.3rem; }

    /* 隐藏非关键表格列 */
    .table th.hide-mobile,
    .table td.hide-mobile { display: none; }
}

/* 横屏提醒 */
@media (orientation: landscape) and (max-height: 500px) {
    .main-content { padding: 8px 12px; }
    .card { padding: 10px; }
}