/* 移动端基础样式 */
:root {
    --bg-primary: #0f172a;
    --bg-secondary: #111827;
    --bg-card: rgba(15, 23, 42, 0.85);
    --bg-elevated: rgba(30, 41, 59, 0.9);
    --accent: #38bdf8;
    --accent-strong: #0ea5e9;
    --success: #22c55e;
    --danger: #f97316;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5f5;
    --text-muted: #6e7b9d;
    --shadow-large: 0 20px 45px rgba(15, 23, 42, 0.45);
    --radius-large: 26px;
    --radius-medium: 20px;
    --radius-small: 16px;
    --header-height: 72px;
    --tabbar-height: 68px;
}

* {
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html, body {
    margin: 0;
    padding: 0;
    font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: radial-gradient(circle at top, #1d2a44, #0b1120 45%);
    color: var(--text-primary);
    min-height: 100%;
}

body {
    display: flex;
    justify-content: center;
    position: relative;
    overflow-x: hidden;
}

.mobile-shell {
    width: 100%;
    max-width: 540px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: linear-gradient(160deg, rgba(15,23,42,0.95) 0%, rgba(17,24,39,0.92) 60%, rgba(8, 13, 23, 0.96) 100%);
    backdrop-filter: blur(20px);
    position: relative;
    margin: 0 auto;
}

.mobile-header {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px 12px;
    background: rgba(15, 23, 42, 0.92);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(148, 163, 184, 0.08);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 14px;
}

.header-icon {
    width: 42px;
    height: 42px;
    border-radius: 14px;
    background: linear-gradient(145deg, rgba(56, 189, 248, 0.25), rgba(14, 165, 233, 0.45));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 1.1rem;
    box-shadow: 0 10px 24px rgba(56, 189, 248, 0.22);
}

.header-title {
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 0.01em;
}

.header-subtitle {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 2px;
}

.header-right {
    display: flex;
    align-items: center;
}

.user-chip {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-radius: 999px;
    background: rgba(15, 118, 110, 0.15);
    cursor: default;
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 12px;
    background: linear-gradient(145deg, rgba(56, 189, 248, 0.48), rgba(14, 165, 233, 0.62));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: #0f172a;
}

.user-meta {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
}

.user-name {
    font-size: 0.92rem;
    font-weight: 600;
}

.user-vip {
    font-size: 0.75rem;
    color: var(--accent);
}

.quick-actions {
    padding: 0 20px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-top: 8px;
}

.action-btn {
    background: rgba(30, 41, 59, 0.85);
    border: none;
    border-radius: 16px;
    padding: 12px 10px;
    color: var(--text-secondary);
    font-size: 0.78rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 7px;
    box-shadow: 0 10px 25px rgba(15, 23, 42, 0.3);
}

.action-btn i {
    font-size: 1.1rem;
    color: var(--accent);
}

.action-primary {
    background: linear-gradient(160deg, rgba(56, 189, 248, 0.18), rgba(14, 165, 233, 0.4));
    color: var(--text-primary);
}

.header-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    padding: 12px 16px 8px;
}

.stat-item {
    background: rgba(30, 41, 59, 0.82);
    padding: 10px 8px;
    border-radius: 14px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    box-shadow: 0 10px 20px rgba(2, 6, 23, 0.35);
    min-width: 0;
    overflow: visible;
}

.stat-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.stat-value {
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    white-space: nowrap;
    overflow: visible;
    text-overflow: clip;
    word-break: break-all;
    line-height: 1.2;
}

.text-primary {
    color: #38bdf8;
}

.text-success {
    color: var(--success);
}

.text-danger {
    color: #f97316;
}

.mobile-content {
    flex: 1;
    padding: 6px 16px calc(96px + env(safe-area-inset-bottom));
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.mobile-card {
    background: rgba(30, 41, 59, 0.85);
    border-radius: 16px;
    padding: 14px;
    box-shadow: var(--shadow-large);
    border: 1px solid rgba(148, 163, 184, 0.08);
}

.mobile-card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
}

.mobile-card__title {
    font-size: 0.95rem;
    font-weight: 600;
}

.mobile-card__subtitle {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 2px;
}

.mobile-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.mobile-list__item {
    background: rgba(15, 23, 42, 0.75);
    border-radius: 14px;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    border: 1px solid rgba(148, 163, 184, 0.06);
}

.mobile-list__meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.mobile-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 10px;
    border-radius: 999px;
    font-size: 0.75rem;
    background: rgba(56, 189, 248, 0.18);
    color: var(--accent);
}

.mobile-empty {
    text-align: center;
    color: var(--text-muted);
    padding: 30px 16px;
    border-radius: 16px;
    background: rgba(15, 23, 42, 0.6);
}

.mobile-tabbar {
    position: fixed !important;
    bottom: 0 !important;
    left: 50% !important;
    transform: translateX(-50%) !important;
    width: 100% !important;
    max-width: 540px !important;
    height: var(--tabbar-height) !important;
    padding-bottom: env(safe-area-inset-bottom) !important;
    background: rgba(15, 23, 42, 0.92) !important;
    backdrop-filter: blur(18px) !important;
    display: grid !important;
    grid-template-columns: repeat(6, 1fr) !important;
    border-top: 1px solid rgba(148, 163, 184, 0.08) !important;
    z-index: 99999 !important;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3) !important;
    visibility: visible !important;
    opacity: 1 !important;
}

.tab-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.72rem;
    transition: color 0.2s ease, transform 0.2s ease;
}

.tab-item i {
    font-size: 1.1rem;
}

.tab-item.is-active {
    color: var(--accent);
}

.tab-item.is-active i {
    transform: scale(1.08);
}

.mobile-sheet {
    position: fixed;
    inset: 0;
    display: none;
    z-index: 40;
}

.mobile-sheet.is-open {
    display: block;
}

.sheet-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.68);
    backdrop-filter: blur(6px);
    opacity: 0;
    transition: opacity 0.25s ease;
}

.mobile-sheet.is-open .sheet-backdrop {
    opacity: 1;
}

.sheet-panel {
    position: absolute;
    left: 50%;
    bottom: -100%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 540px;
    background: rgba(15, 23, 42, 0.98);
    border-radius: 28px 28px 0 0;
    padding: 22px 24px 34px;
    box-shadow: 0 -18px 35px rgba(8, 13, 23, 0.5);
    transition: bottom 0.28s ease;
}

.mobile-sheet.is-open .sheet-panel {
    bottom: 0;
}

.sheet-handle {
    width: 44px;
    height: 4px;
    background: rgba(148, 163, 184, 0.4);
    border-radius: 999px;
    margin: 0 auto 18px;
}

.sheet-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 18px;
}

.sheet-avatar {
    width: 52px;
    height: 52px;
    border-radius: 18px;
    background: linear-gradient(145deg, rgba(56,189,248,0.4), rgba(14,165,233,0.6));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    font-weight: 600;
    color: #0f172a;
}

.sheet-info {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.sheet-name {
    font-size: 1.05rem;
    font-weight: 600;
}

.sheet-meta {
    font-size: 0.82rem;
    color: var(--text-muted);
}

.sheet-actions {
    display: grid;
    gap: 12px;
}

.sheet-action {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px;
    border-radius: 18px;
    background: rgba(30, 41, 59, 0.85);
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
}

.sheet-action i {
    font-size: 1.2rem;
    color: var(--accent);
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-up {
    animation: fadeUp 0.35s ease both;
}

@media (max-width: 375px) {
    .mobile-content {
        padding: 6px 12px calc(92px + env(safe-area-inset-bottom));
    }

    .header-stats {
        padding: 10px 12px 6px;
        gap: 6px;
    }
    
    .stat-item {
        padding: 8px 6px;
    }
    
    .stat-label {
        font-size: 0.65rem;
    }
    
    .stat-value {
        font-size: 0.75rem;
    }
}

@media (max-width: 320px) {
    .header-stats {
        gap: 4px;
        padding: 8px 10px 6px;
    }
    
    .stat-item {
        padding: 6px 4px;
    }
    
    .stat-label {
        font-size: 0.6rem;
    }
    
    .stat-value {
        font-size: 0.7rem;
    }
}