/* ================================================================
   AI 智能体平台 — 全局样式系统（心理学机构专业版）
   设计定位：信任、稳重、温暖、治愈
   ================================================================ */

:root {
    /* === 主色调：深蓝灰（信任、专业） === */
    --primary-color: #1e2d4a;
    --primary-light: #2d4373;
    --primary-dark: #151f33;
    --primary-gradient: linear-gradient(135deg, #1e2d4a 0%, #2d4f6e 100%);

    /* === 强调色：柔和青绿（治愈、平静、成长） === */
    --accent-color: #0d9488;
    --accent-hover: #0f766e;
    --accent-light: #ccfbf1;
    --accent-gradient: linear-gradient(135deg, #0d9488 0%, #14b8a6 100%);

    /* === 暖金色：点缀、高端感 === */
    --gold-color: #c4a574;
    --gold-light: #f5efe6;
    --gold-gradient: linear-gradient(135deg, #c4a574 0%, #d4b896 100%);

    /* === 背景色 === */
    --bg-color: #f6f8f9;
    --bg-white: #ffffff;
    --bg-light-gray: #edf1f5;
    --bg-surface: #f0f4f7;

    /* === 文字色 === */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-light: #94a3b8;
    --text-white: #ffffff;

    /* === 边框 === */
    --border-color: #e8ecf1;
    --border-light: #dde3ea;

    /* === 功能色 === */
    --success-color: #10b981;
    --success-bg: #d1fae5;
    --warning-color: #f59e0b;
    --warning-bg: #fef3c7;
    --error-color: #ef4444;
    --error-bg: #fee2e2;
    --info-color: #6366f1;
    --info-bg: #e0e7ff;

    /* === 阴影系统 === */
    --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.10);
    --shadow-xl: 0 16px 48px rgba(0,0,0,0.12);
    --shadow-card-hover: 0 8px 30px rgba(0,0,0,0.12);

    /* === 圆角 === */
    --radius-xs: 4px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-2xl: 24px;
    --radius-full: 9999px;

    /* === 过渡 === */
    --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ================================================================
   RESET & BASE
   ================================================================ */

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

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.65;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
img { max-width: 100%; height: auto; display: block; }

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
    font-size: inherit;
    transition: var(--transition-fast);
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
    border: none;
    outline: none;
    background: none;
}

/* ================================================================
   LAYOUT
   ================================================================ */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 16px;
}

.page-container {
    max-width: 100%;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: var(--bg-color);
}

/* ================================================================
   HEADER — 玻璃拟态导航
   ================================================================ */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(30, 45, 74, 0.92);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-white);
}

.header-logo-icon {
    width: 36px;
    height: 36px;
    background: var(--accent-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    box-shadow: 0 2px 8px rgba(13, 148, 136, 0.3);
}

.header-logo-text {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.header-nav {
    display: flex;
    gap: 6px;
}

.header-nav-item {
    color: rgba(255,255,255,0.82);
    font-size: 14px;
    padding: 8px 16px;
    border-radius: var(--radius-full);
    transition: var(--transition-fast);
    font-weight: 500;
}

.header-nav-item:hover,
.header-nav-item.active {
    color: #fff;
    background: rgba(255,255,255,0.14);
}

.header-user-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: rgba(255,255,255,0.14);
    border-radius: 50%;
    font-size: 18px;
    cursor: pointer;
    transition: var(--transition-fast);
}

.header-user-avatar:hover {
    background: rgba(255,255,255,0.24);
}

/* ================================================================
   MAIN CONTENT AREA
   ================================================================ */

.main-content {
    flex: 1;
    padding-top: 64px;
    padding-bottom: 20px;
}

/* ================================================================
   PAGE HEADER (带返回按钮的页面标题)
   ================================================================ */

.page-header {
    display: flex;
    align-items: center;
    padding: 16px 20px;
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 60px;
    z-index: 50;
}

.back-btn {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    color: var(--text-primary);
    font-size: 20px;
    transition: var(--transition-fast);
}

.back-btn:hover {
    background: var(--bg-light-gray);
}

.page-title {
    flex: 1;
    text-align: center;
    font-size: 17px;
    font-weight: 700;
    color: var(--text-primary);
    margin-right: 38px;
}

/* ================================================================
   BUTTONS
   ================================================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 24px;
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 600;
    transition: var(--transition-fast);
    cursor: pointer;
    letter-spacing: 0.3px;
    position: relative;
    overflow: hidden;
}

.btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: transparent;
    transition: var(--transition-fast);
}

.btn:active { transform: scale(0.97); }

.btn-primary {
    background: var(--accent-gradient);
    color: var(--text-white);
    box-shadow: 0 4px 14px rgba(13,148,136,0.3);
}

.btn-primary:hover {
    box-shadow: 0 6px 22px rgba(13,148,136,0.4);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--bg-white);
    color: var(--accent-color);
    border: 1.5px solid var(--accent-color);
}

.btn-secondary:hover {
    background: var(--accent-light);
    transform: translateY(-1px);
}

.btn-white {
    background: var(--bg-white);
    color: var(--text-primary);
    border: 1.5px solid var(--border-color);
}

.btn-white:hover {
    border-color: var(--border-light);
    background: var(--bg-light-gray);
    transform: translateY(-1px);
}

.btn-gold {
    background: var(--gold-gradient);
    color: #fff;
    box-shadow: 0 4px 14px rgba(196,165,116,0.35);
}

.btn-gold:hover {
    box-shadow: 0 6px 22px rgba(196,165,116,0.5);
    transform: translateY(-1px);
}

.btn-text {
    color: var(--accent-color);
    padding: 8px 14px;
    font-weight: 500;
}

.btn-text:hover {
    background: var(--accent-light);
    border-radius: var(--radius-full);
}

.btn-sm { padding: 7px 16px; font-size: 12px; }
.btn-lg { padding: 15px 32px; font-size: 16px; }
.btn-block { width: 100%; }

.btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
    pointer-events: none;
}

/* ================================================================
   CATEGORY TABS
   ================================================================ */

.category-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 18px 0;
}

.category-tab {
    padding: 9px 20px;
    background: var(--bg-white);
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-full);
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
    transition: var(--transition-fast);
    cursor: pointer;
}

.category-tab:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
    background: var(--accent-light);
}

.category-tab.active {
    background: var(--accent-gradient);
    border-color: transparent;
    color: var(--text-white);
    box-shadow: 0 4px 12px rgba(13,148,136,0.3);
}

/* ================================================================
   AGENT CARDS
   ================================================================ */

.agent-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    padding-bottom: 24px;
}

.agent-card {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: 18px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.agent-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent-gradient);
    opacity: 0;
    transition: var(--transition-normal);
}

.agent-card:hover {
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-3px);
    border-color: transparent;
}

.agent-card:hover::before { opacity: 1; }

.agent-card:active { transform: translateY(0); }

.agent-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.agent-avatar {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-lg);
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--text-white);
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(30,45,74,0.25);
}

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

.agent-name {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.agent-tag {
    display: inline-block;
    padding: 3px 10px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 600;
}

.agent-tag.free {
    background: var(--success-bg);
    color: #065f46;
}

.agent-tag.vip {
    background: var(--gold-light);
    color: #92400e;
}

.agent-tag.premium {
    background: var(--warning-bg);
    color: #92400e;
    font-weight: 700;
}

.agent-tag.normal {
    background: var(--bg-light-gray);
    color: var(--text-secondary);
}

.agent-desc {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 14px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.agent-stats {
    display: flex;
    gap: 10px;
    margin-bottom: 14px;
    flex-wrap: wrap;
}

.agent-stat-item {
    font-size: 12px;
    color: var(--text-secondary);
    background: var(--bg-light-gray);
    padding: 5px 12px;
    border-radius: var(--radius-full);
    font-weight: 500;
}

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

.agent-remaining {
    font-size: 12px;
    color: var(--text-light);
}

.agent-remaining span {
    color: var(--accent-color);
    font-weight: 700;
}

.agent-price-tag {
    display: inline-block;
    padding: 3px 10px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 700;
    margin-left: 8px;
}

.agent-price-tag.free {
    background: var(--success-bg);
    color: #065f46;
}

.agent-price-tag.vip {
    background: #ede9fe;
    color: #5b21b6;
}

.agent-price-tag.paid {
    background: var(--error-bg);
    color: #991b1b;
}

.agent-level-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: var(--radius-sm);
    font-size: 10px;
    font-weight: 700;
    margin-left: 8px;
}

.agent-level-normal {
    background: #e2e8f0;
    color: var(--text-secondary);
}

.agent-level-premium {
    background: var(--gold-gradient);
    color: #fff;
}

/* ================================================================
   HERO SECTION (首页)
   ================================================================ */

.hero-section {
    background: var(--primary-gradient);
    border-radius: var(--radius-2xl);
    padding: 32px 24px;
    margin-bottom: 20px;
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 60%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.06) 0%, transparent 70%);
    pointer-events: none;
}

.hero-left {
    display: flex;
    flex-direction: column;
    gap: 16px;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 26px;
    font-weight: 800;
    color: var(--text-white);
    line-height: 1.35;
    letter-spacing: 0.5px;
}

.hero-subtitle {
    font-size: 14px;
    color: rgba(255,255,255,0.88);
    line-height: 1.7;
}

.hero-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    width: fit-content;
    padding: 14px 28px;
    background: var(--accent-gradient);
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    border-radius: var(--radius-full);
    transition: var(--transition-fast);
    box-shadow: 0 4px 16px rgba(13,148,136,0.4);
}

.hero-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(13,148,136,0.5);
}

.hero-right {
    display: flex;
    flex-direction: column;
    gap: 12px;
    position: relative;
    z-index: 1;
}

.quick-card {
    background: rgba(255,255,255,0.12);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: var(--radius-lg);
    padding: 18px;
    border: 1px solid rgba(255,255,255,0.15);
    transition: var(--transition-fast);
}

.quick-card:hover {
    background: rgba(255,255,255,0.18);
    transform: translateY(-2px);
}

.quick-card-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 6px;
}

.quick-card-desc {
    font-size: 12px;
    color: rgba(255,255,255,0.82);
    margin-bottom: 14px;
    line-height: 1.5;
}

.quick-card-actions {
    display: flex;
    gap: 10px;
}

.quick-card-btn {
    flex: 1;
    padding: 9px 14px;
    background: rgba(255,255,255,0.95);
    color: var(--primary-color);
    font-size: 12px;
    font-weight: 700;
    border-radius: var(--radius-full);
    text-align: center;
    transition: var(--transition-fast);
}

.quick-card-btn:hover {
    background: #fff;
    transform: translateY(-1px);
}

.quick-mini {
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(12px);
    border-radius: var(--radius-lg);
    padding: 16px 18px;
    display: flex;
    align-items: center;
    gap: 14px;
    border: 1px solid rgba(255,255,255,0.12);
    cursor: pointer;
    transition: var(--transition-fast);
}

.quick-mini:hover {
    background: rgba(255,255,255,0.18);
    transform: translateY(-2px);
}

.quick-mini-icon {
    width: 42px;
    height: 42px;
    background: rgba(255,255,255,0.95);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: var(--primary-color);
    flex-shrink: 0;
}

.quick-mini-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-white);
}

.quick-mini-desc {
    font-size: 11px;
    color: rgba(255,255,255,0.8);
}

/* ================================================================
   INTRO SECTION (平台介绍)
   ================================================================ */

.intro-section {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: 24px;
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.intro-item { margin-bottom: 24px; }
.intro-item:last-child { margin-bottom: 0; }

.intro-title {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.intro-title::before {
    content: '';
    width: 4px;
    height: 20px;
    background: var(--accent-gradient);
    border-radius: 2px;
}

.intro-text {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.85;
}

.intro-team {
    display: flex;
    gap: 16px;
    margin-top: 18px;
}

.intro-avatar {
    width: 60px;
    height: 60px;
    background: var(--accent-gradient);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    color: var(--text-white);
    flex-shrink: 0;
    box-shadow: 0 4px 14px rgba(13,148,136,0.3);
}

.intro-team-info { flex: 1; }

.intro-team-name {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.intro-team-role {
    font-size: 13px;
    color: var(--accent-color);
    font-weight: 600;
    margin-bottom: 8px;
}

.intro-team-text {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 导师网格 */
.mentor-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-top: 16px;
}

.mentor-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: transform 0.15s, box-shadow 0.15s;
}

.mentor-card:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(0,0,0,0.05);
}

.mentor-photo {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.mentor-avatar {
    width: 44px;
    height: 44px;
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--text-white);
    flex-shrink: 0;
}

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

.mentor-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.mentor-title {
    font-size: 12px;
    color: var(--accent-color);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ================================================================
   DETAIL PAGE (智能体详情)
   ================================================================ */

.detail-banner {
    width: 100%;
    height: 220px;
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.detail-banner::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 0%, rgba(255,255,255,0.08) 0%, transparent 60%);
}

.detail-banner-icon {
    font-size: 88px;
    position: relative;
    z-index: 1;
}

.detail-content {
    padding: 24px 20px;
}

.detail-title {
    font-size: 24px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.detail-meta {
    display: flex;
    gap: 16px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.detail-meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-light);
    font-weight: 500;
}

.detail-section {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: 20px;
    margin-bottom: 14px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-xs);
}

.detail-section-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.detail-section-title::before {
    content: '';
    width: 4px;
    height: 18px;
    background: var(--accent-gradient);
    border-radius: 2px;
}

.detail-text {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.85;
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.feature-icon {
    width: 22px;
    height: 22px;
    background: var(--success-bg);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--success-color);
    font-size: 12px;
    flex-shrink: 0;
    margin-top: 2px;
}

.action-buttons {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 20px;
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    margin-bottom: 14px;
    border: 1px solid var(--border-color);
}

.action-btn-row {
    display: flex;
    gap: 10px;
}

.action-btn-col { flex: 1; }

/* ================================================================
   CHAT PAGE
   ================================================================ */

.chat-container {
    display: flex;
    flex-direction: column;
    height: calc(100vh - 64px - 20px);
    background: var(--bg-color);
}

.chat-header {
    display: flex;
    align-items: center;
    padding: 14px 20px;
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    gap: 14px;
}

.chat-agent-info { flex: 1; }

.chat-agent-name {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.chat-remaining {
    font-size: 12px;
    color: var(--text-light);
    font-weight: 500;
}

.chat-remaining span {
    color: var(--accent-color);
    font-weight: 700;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.chat-messages::-webkit-scrollbar {
    width: 5px;
}

.chat-messages::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 10px;
}

.message {
    display: flex;
    gap: 12px;
    max-width: 82%;
    animation: messageIn 0.3s ease;
}

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

.message.user {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.message-avatar {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-md);
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 17px;
    color: var(--text-white);
    flex-shrink: 0;
    box-shadow: 0 2px 8px rgba(13,148,136,0.25);
}

.message.user .message-avatar {
    background: var(--primary-gradient);
}

.message-content {
    background: var(--bg-white);
    padding: 14px 18px;
    border-radius: var(--radius-lg);
    border-top-left-radius: var(--radius-sm);
    font-size: 14px;
    color: var(--text-primary);
    line-height: 1.7;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.message.user .message-content {
    background: var(--accent-gradient);
    color: var(--text-white);
    border-top-left-radius: var(--radius-lg);
    border-top-right-radius: var(--radius-sm);
    border: none;
}

.chat-input-area {
    padding: 14px 20px;
    background: var(--bg-white);
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 12px;
    align-items: flex-end;
}

.chat-input-wrapper {
    flex: 1;
    display: flex;
    align-items: flex-end;
    gap: 10px;
    background: var(--bg-light-gray);
    border-radius: var(--radius-lg);
    padding: 10px 14px;
    border: 1.5px solid transparent;
    transition: var(--transition-fast);
}

.chat-input-wrapper:focus-within {
    border-color: var(--accent-color);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(13,148,136,0.08);
}

.chat-input {
    flex: 1;
    background: none;
    resize: none;
    max-height: 110px;
    line-height: 1.55;
    color: var(--text-primary);
    font-size: 15px;
}

.chat-input::placeholder { color: var(--text-light); }

.chat-actions { display: flex; gap: 6px; }

.chat-action-btn {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    color: var(--text-light);
    transition: var(--transition-fast);
}

.chat-action-btn:hover {
    background: var(--bg-light-gray);
    color: var(--text-primary);
}

.send-btn {
    width: 46px;
    height: 46px;
    background: var(--accent-gradient);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    transition: var(--transition-fast);
    box-shadow: 0 4px 14px rgba(13,148,136,0.3);
}

.send-btn:hover {
    transform: scale(1.06);
    box-shadow: 0 6px 20px rgba(13,148,136,0.4);
}

.send-btn:active { transform: scale(0.94); }

.send-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.typing-indicator {
    display: flex;
    gap: 5px;
    padding: 6px 0;
    align-items: center;
}

.typing-dot {
    width: 9px;
    height: 9px;
    background: var(--text-light);
    border-radius: var(--radius-full);
    animation: typingBounce 1.4s infinite ease-in-out;
}

.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingBounce {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.35; }
    30% { transform: translateY(-8px); opacity: 1; }
}

/* ================================================================
   FORMS (登录/注册)
   ================================================================ */

.login-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--bg-color);
}

.login-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 40px 24px;
    max-width: 420px;
    margin: 0 auto;
    width: 100%;
}

.login-logo {
    text-align: center;
    margin-bottom: 44px;
}

.login-logo-icon {
    font-size: 68px;
    margin-bottom: 14px;
}

.login-logo-text {
    font-size: 26px;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.login-form {
    background: var(--bg-white);
    border-radius: var(--radius-2xl);
    padding: 36px 28px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.form-container {
    padding: 28px 20px;
    min-height: calc(100vh - 64px);
    display: flex;
    flex-direction: column;
}

.form-title {
    font-size: 26px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.form-subtitle {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 36px;
    line-height: 1.6;
}

.form-group {
    margin-bottom: 22px;
}

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

.form-input-wrapper {
    display: flex;
    align-items: center;
    background: var(--bg-light-gray);
    border: 1.5px solid transparent;
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition-fast);
}

.form-input-wrapper:focus-within {
    border-color: var(--accent-color);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(13,148,136,0.08);
}

.form-input {
    flex: 1;
    padding: 14px 16px;
    color: var(--text-primary);
    font-size: 15px;
}

.form-input::placeholder { color: var(--text-light); }

.form-input-suffix { padding-right: 16px; }

.form-send-code-btn {
    padding: 14px 18px;
    color: var(--accent-color);
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
}

.form-send-code-btn:disabled {
    color: var(--text-light);
    cursor: not-allowed;
}

.form-checkbox {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 28px;
}

.form-checkbox input {
    width: 18px;
    height: 18px;
    accent-color: var(--accent-color);
}

.form-checkbox label {
    font-size: 13px;
    color: var(--text-secondary);
}

.form-checkbox a {
    color: var(--accent-color);
    font-weight: 600;
}

.form-submit { margin-top: auto; }

.form-footer {
    text-align: center;
    margin-top: 28px;
    font-size: 14px;
    color: var(--text-secondary);
}

.form-footer a {
    color: var(--accent-color);
    font-weight: 700;
}

.form-btn {
    width: 100%;
    padding: 15px;
    background: var(--accent-gradient);
    color: #fff;
    border-radius: var(--radius-lg);
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition-fast);
    box-shadow: 0 4px 14px rgba(13,148,136,0.3);
}

.form-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 22px rgba(13,148,136,0.4);
}

.form-link {
    display: block;
    text-align: center;
    margin-top: 18px;
    font-size: 14px;
    color: var(--accent-color);
    font-weight: 600;
}

.form-link:hover { text-decoration: underline; }

/* ================================================================
   PROFILE / USER CENTER
   ================================================================ */

.profile-header {
    background: var(--primary-gradient);
    padding: 36px 20px;
    text-align: center;
}

.profile-avatar {
    width: 84px;
    height: 84px;
    border-radius: var(--radius-full);
    background: rgba(255,255,255,0.2);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 38px;
    margin: 0 auto 14px;
    border: 3px solid rgba(255,255,255,0.3);
}

.profile-name {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 6px;
}

.profile-phone {
    font-size: 14px;
    color: rgba(255,255,255,0.8);
}

.profile-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--border-color);
    margin-top: -1px;
}

.profile-stat-item {
    background: var(--bg-white);
    padding: 18px;
    text-align: center;
}

.profile-stat-value {
    font-size: 22px;
    font-weight: 800;
    color: var(--accent-color);
    margin-bottom: 6px;
}

.profile-stat-label {
    font-size: 12px;
    color: var(--text-light);
    font-weight: 500;
}

.profile-content { padding: 20px; }

.profile-section {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    margin-bottom: 14px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-xs);
}

.profile-section-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.profile-menu { padding: 6px 0; }

.profile-menu-item {
    display: flex;
    align-items: center;
    padding: 15px 20px;
    gap: 14px;
    transition: var(--transition-fast);
    cursor: pointer;
}

.profile-menu-item:hover {
    background: var(--bg-light-gray);
}

.profile-menu-icon {
    width: 38px;
    height: 38px;
    background: var(--bg-light-gray);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 19px;
    color: var(--accent-color);
    flex-shrink: 0;
}

.profile-menu-text {
    flex: 1;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-primary);
}

.profile-menu-arrow {
    color: var(--text-light);
    font-size: 14px;
}

.profile-menu-badge {
    padding: 3px 10px;
    background: var(--error-color);
    color: var(--text-white);
    font-size: 11px;
    font-weight: 700;
    border-radius: var(--radius-full);
}

/* ================================================================
   VIP CARD
   ================================================================ */

.vip-card {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    margin: 0 20px -20px;
    padding: 20px;
    border: 1.5px solid var(--border-color);
    box-shadow: var(--shadow-md);
    position: relative;
    z-index: 10;
}

.vip-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
}

.vip-badge {
    display: inline-block;
    padding: 5px 14px;
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 700;
    color: var(--text-white);
}

.vip-badge-normal { background: var(--text-light); }
.vip-badge-seven { background: linear-gradient(135deg, #6366f1, #8b5cf6); }
.vip-badge-month { background: linear-gradient(135deg, #3b82f6, #2563eb); }
.vip-badge-part { background: linear-gradient(135deg, #f59e0b, #d97706); }
.vip-badge-all { background: var(--gold-gradient); }

.vip-card-body {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.vip-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: var(--bg-light-gray);
    border-radius: var(--radius-md);
}

.vip-label { font-size: 13px; color: var(--text-light); font-weight: 500; }
.vip-value { font-size: 13px; font-weight: 700; color: var(--text-primary); }

.vip-card-footer {
    margin-top: 14px;
    display: flex;
    gap: 10px;
}

.vip-card-footer .btn { flex: 1; }

.current-vip-indicator {
    background: var(--success-bg);
    border: 1.5px solid #bbf7d0;
    border-radius: var(--radius-md);
    padding: 14px;
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.current-vip-indicator-icon {
    width: 38px;
    height: 38px;
    background: var(--success-color);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 18px;
    flex-shrink: 0;
}

.current-vip-indicator-text { flex: 1; }

.current-vip-indicator-title {
    font-size: 14px;
    font-weight: 700;
    color: #065f46;
    margin-bottom: 2px;
}

.current-vip-indicator-desc {
    font-size: 12px;
    color: #047857;
}

/* ================================================================
   PACKAGE CARDS
   ================================================================ */

.package-list {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.package-card {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: 24px;
    border: 2px solid var(--border-color);
    transition: var(--transition-normal);
    cursor: pointer;
    position: relative;
}

.package-card:hover {
    border-color: var(--accent-color);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.package-card.selected {
    border-color: var(--accent-color);
    background: var(--accent-light);
    box-shadow: 0 0 0 4px rgba(13,148,136,0.1);
}

.package-card.popular {
    border-color: var(--gold-color);
    background: linear-gradient(135deg, #fff 0%, #fef9f3 100%);
}

.package-popular-tag {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 5px 16px;
    background: var(--gold-gradient);
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    border-radius: var(--radius-full);
    box-shadow: 0 4px 12px rgba(196,165,116,0.4);
}

.package-header {
    text-align: center;
    margin-bottom: 18px;
}

.package-name {
    font-size: 19px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.package-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 2px;
}

.package-price-symbol {
    font-size: 18px;
    color: var(--accent-color);
    font-weight: 700;
}

.package-price-value {
    font-size: 36px;
    font-weight: 800;
    color: var(--accent-color);
}

.package-price-unit {
    font-size: 14px;
    color: var(--text-light);
    margin-left: 6px;
}

.package-features {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 18px;
}

.package-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-secondary);
}

.package-feature-icon {
    color: var(--success-color);
    font-size: 15px;
    font-weight: 700;
}

.package-submit { width: 100%; }

.package-vip-type {
    margin-top: 14px;
    text-align: center;
}

.package-vip-badge {
    display: inline-block;
    padding: 5px 14px;
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 700;
}

.package-vip-badge-seven { background: linear-gradient(135deg, #6366f1, #8b5cf6); color: #fff; }
.package-vip-badge-month { background: linear-gradient(135deg, #3b82f6, #2563eb); color: #fff; }
.package-vip-badge-part { background: linear-gradient(135deg, #f59e0b, #d97706); color: #fff; }
.package-vip-badge-all { background: var(--gold-gradient); color: #fff; }

/* ================================================================
   PAYMENT
   ================================================================ */

.payment-methods {
    padding: 18px;
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    margin-bottom: 18px;
    border: 1px solid var(--border-color);
}

.payment-method-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 14px;
}

.payment-method-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.payment-method-item {
    display: flex;
    align-items: center;
    padding: 16px;
    background: var(--bg-light-gray);
    border-radius: var(--radius-lg);
    gap: 14px;
    cursor: pointer;
    transition: var(--transition-fast);
    border: 1.5px solid transparent;
}

.payment-method-item:hover {
    background: var(--border-color);
}

.payment-method-item.selected {
    background: var(--accent-light);
    border-color: var(--accent-color);
}

.payment-method-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
}

.payment-method-icon.wechat { background: #07c160; color: #fff; }
.payment-method-icon.alipay { background: #1677ff; color: #fff; }

.payment-method-name {
    flex: 1;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

.payment-method-radio {
    width: 22px;
    height: 22px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.payment-method-item.selected .payment-method-radio {
    border-color: var(--accent-color);
}

.payment-method-item.selected .payment-method-radio::after {
    content: '';
    width: 12px;
    height: 12px;
    background: var(--accent-color);
    border-radius: var(--radius-full);
}

/* ================================================================
   RESULT PAGE
   ================================================================ */

.result-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 64px);
    padding: 40px 24px;
    text-align: center;
}

.result-icon {
    width: 108px;
    height: 108px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 54px;
    margin-bottom: 28px;
    animation: resultPop 0.5s ease;
}

@keyframes resultPop {
    from { transform: scale(0.5); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.result-icon.success {
    background: var(--success-bg);
    color: var(--success-color);
}

.result-icon.error {
    background: var(--error-bg);
    color: var(--error-color);
}

.result-title {
    font-size: 24px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.result-desc {
    font-size: 15px;
    color: var(--text-light);
    margin-bottom: 36px;
    line-height: 1.6;
}

.result-buttons {
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: 100%;
    max-width: 320px;
}

/* ================================================================
   REDEEM CODE
   ================================================================ */

.redeem-section {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: 20px;
    margin-bottom: 14px;
    border: 1px solid var(--border-color);
}

.redeem-section-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 14px;
}

.redeem-form { padding: 20px; }

.redeem-input-wrapper {
    display: flex;
    gap: 10px;
    margin-bottom: 18px;
}

.redeem-input-wrapper .form-input-wrapper { flex: 1; }

.redeem-input {
    width: 100%;
    padding: 14px 18px;
    background: var(--bg-light-gray);
    border-radius: var(--radius-lg);
    font-size: 15px;
    color: var(--text-primary);
    border: 1.5px solid transparent;
    transition: var(--transition-fast);
}

.redeem-input:focus {
    border-color: var(--accent-color);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(13,148,136,0.08);
}

.redeem-input::placeholder { color: var(--text-light); }

.redeem-input-group {
    display: flex;
    gap: 10px;
}

.redeem-input-group .redeem-input-wrapper { flex: 1; }

.redeem-history { padding: 0 20px 20px; }

.redeem-history-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 14px;
}

.redeem-history-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.redeem-history-item {
    display: flex;
    align-items: center;
    padding: 16px;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    gap: 14px;
    border: 1px solid var(--border-color);
}

.redeem-history-icon {
    width: 42px;
    height: 42px;
    background: var(--bg-light-gray);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--accent-color);
    flex-shrink: 0;
}

.redeem-history-info { flex: 1; }

.redeem-history-code {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.redeem-history-meta { font-size: 12px; color: var(--text-light); }

.redeem-history-status {
    padding: 5px 12px;
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 600;
}

.redeem-history-status.used { background: var(--error-bg); color: #991b1b; }
.redeem-history-status.unused { background: var(--success-bg); color: #065f46; }

/* ================================================================
   USAGE RECORDS
   ================================================================ */

.usage-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.usage-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    background: var(--bg-light-gray);
    border-radius: var(--radius-md);
    font-size: 14px;
    color: var(--text-secondary);
}

.usage-item::before {
    content: '●';
    color: var(--accent-color);
    font-size: 8px;
}

.records-list {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.record-item {
    display: flex;
    align-items: center;
    padding: 16px;
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    gap: 14px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-xs);
    transition: var(--transition-fast);
}

.record-item:hover {
    box-shadow: var(--shadow-sm);
}

.record-icon {
    width: 48px;
    height: 48px;
    background: var(--accent-gradient);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: #fff;
    flex-shrink: 0;
}

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

.record-name {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.record-meta {
    display: flex;
    gap: 14px;
    font-size: 12px;
    color: var(--text-light);
    font-weight: 500;
}

.record-delete {
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    border-radius: var(--radius-full);
    transition: var(--transition-fast);
}

.record-delete:hover {
    background: var(--error-bg);
    color: var(--error-color);
}

/* ================================================================
   ADMIN PANEL
   ================================================================ */

.admin-header {
    padding: 24px 20px;
    background: var(--primary-gradient);
}

.admin-title {
    font-size: 22px;
    font-weight: 800;
    color: var(--text-white);
    margin-bottom: 6px;
}

.admin-subtitle {
    font-size: 14px;
    color: rgba(255,255,255,0.82);
}

.admin-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    padding: 20px;
    margin-top: -36px;
}

.admin-stat-card {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: 18px;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition-fast);
    border: 1px solid var(--border-color);
}

.admin-stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.admin-stat-icon {
    width: 44px;
    height: 44px;
    margin: 0 auto 10px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
}

.admin-stat-icon.blue { background: #dbeafe; color: #2563eb; }
.admin-stat-icon.green { background: #d1fae5; color: #059669; }
.admin-stat-icon.orange { background: #fed7aa; color: #ea580c; }

.admin-stat-value {
    font-size: 26px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.admin-stat-label {
    font-size: 12px;
    color: var(--text-light);
    font-weight: 500;
}

.admin-content { padding: 20px; }

.admin-section {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    margin-bottom: 18px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-xs);
}

.admin-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.admin-section-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
}

.admin-table {
    width: 100%;
    font-size: 13px;
    border-collapse: collapse;
}

.admin-table th,
.admin-table td {
    padding: 13px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.admin-table th {
    background: var(--bg-light-gray);
    font-weight: 700;
    color: var(--text-secondary);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.admin-table td { color: var(--text-primary); }
.admin-table tr:last-child td { border-bottom: none; }
.admin-table tr:hover td { background: rgba(13,148,136,0.02); }

.admin-table .status {
    display: inline-block;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 600;
}

.admin-table .status.success { background: var(--success-bg); color: #065f46; }
.admin-table .status.pending { background: var(--warning-bg); color: #92400e; }
.admin-table .status.error { background: var(--error-bg); color: #991b1b; }

.admin-form-row {
    display: flex;
    gap: 12px;
    padding: 16px 20px;
}

.admin-form-row .form-input-wrapper { flex: 1; }
.admin-form-row .btn { flex-shrink: 0; }

.admin-generator { padding: 16px 20px; }

.coupon-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    margin-bottom: 14px;
}

.coupon-item {
    padding: 10px;
    background: var(--bg-light-gray);
    border-radius: var(--radius-md);
    text-align: center;
    font-size: 12px;
    color: var(--text-secondary);
    font-family: "SF Mono", "Fira Code", monospace;
    font-weight: 600;
}

/* ================================================================
   MODAL
   ================================================================ */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.55);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

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

.modal {
    background: var(--bg-white);
    border-radius: var(--radius-2xl);
    width: 100%;
    max-width: 360px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    transform: scale(0.92) translateY(10px);
    transition: var(--transition-normal);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
}

.modal-overlay.show .modal {
    transform: scale(1) translateY(0);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 24px;
    border-bottom: 1px solid var(--border-color);
}

.modal-title {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-primary);
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    color: var(--text-light);
    font-size: 18px;
    transition: var(--transition-fast);
}

.modal-close:hover {
    background: var(--bg-light-gray);
    color: var(--text-primary);
}

.modal-body { padding: 24px; overflow-y: auto; flex: 1; min-height: 0; }

.modal-footer {
    padding: 18px 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 12px;
}

.modal-footer .btn { flex: 1; }

/* ================================================================
   TOAST
   ================================================================ */

.toast {
    position: fixed;
    top: 80px;
    left: 50%;
    transform: translateX(-50%) translateY(-16px);
    background: var(--text-primary);
    color: var(--text-white);
    padding: 13px 28px;
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 600;
    z-index: 300;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-lg);
}

.toast.show {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.toast.success { background: var(--success-color); }
.toast.error { background: var(--error-color); }
.toast.warning { background: var(--warning-color); }

/* ================================================================
   LOADING
   ================================================================ */

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255,255,255,0.88);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    z-index: 250;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 18px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

.loading-overlay.show {
    opacity: 1;
    visibility: visible;
}

.loading-spinner {
    width: 44px;
    height: 44px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-color);
    border-radius: var(--radius-full);
    animation: spin 0.8s linear infinite;
}

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

.loading-text {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ================================================================
   EMPTY STATE
   ================================================================ */

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 64px 24px;
    text-align: center;
}

.empty-icon {
    width: 88px;
    height: 88px;
    background: var(--bg-light-gray);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
    color: var(--text-light);
    margin-bottom: 18px;
}

.empty-title {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.empty-desc {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 24px;
    line-height: 1.6;
}

/* ================================================================
   FAQ
   ================================================================ */

.faq-item {
    border-bottom: 1px solid var(--border-color);
}

.faq-item:last-child { border-bottom: none; }

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
}

.faq-icon {
    color: var(--text-light);
    transition: var(--transition-fast);
    font-size: 14px;
}

.faq-item.open .faq-icon { transform: rotate(180deg); }

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: var(--transition-normal);
}

.faq-item.open .faq-answer { max-height: 200px; }

.faq-answer-content {
    padding-bottom: 16px;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.75;
}

/* ================================================================
   HELP GRID
   ================================================================ */

.help-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
}

.help-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 24px 16px;
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    gap: 10px;
    cursor: pointer;
    transition: var(--transition-fast);
    border: 1px solid var(--border-color);
}

.help-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    border-color: var(--accent-color);
}

.help-icon {
    width: 48px;
    height: 48px;
    background: var(--bg-light-gray);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: var(--accent-color);
}

.help-text {
    font-size: 14px;
    color: var(--text-primary);
    text-align: center;
    font-weight: 600;
}

/* ================================================================
   PERMISSION DENIED
   ================================================================ */

.permission-denied {
    text-align: center;
    padding: 48px 24px;
}

.permission-denied-icon {
    width: 88px;
    height: 88px;
    background: var(--error-bg);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 44px;
    color: var(--error-color);
    margin: 0 auto 18px;
}

.permission-denied-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.permission-denied-desc {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 24px;
    line-height: 1.6;
}

.permission-denied-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-width: 300px;
    margin: 0 auto;
}

.permission-denied-actions .btn { width: 100%; }

/* ================================================================
   FOOTER
   ================================================================ */

.footer {
    text-align: center;
    padding: 16px 20px;
    background: var(--bg-white);
    border-top: 1px solid var(--border-color);
}

.footer-text {
    font-size: 12px;
    color: var(--text-light);
}

/* ================================================================
   ANNOUNCEMENT MODAL（首页公告弹窗）
   ================================================================ */

.announcement-modal {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.55);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.announcement-modal.show { display: flex; }

.announcement-content {
    background: #fff;
    border-radius: var(--radius-2xl);
    padding: 28px;
    max-width: 420px;
    width: 92%;
    max-height: 78vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: slideUp 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.announcement-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 18px;
}

.announcement-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

.announcement-close {
    width: 32px; height: 32px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    cursor: pointer;
    color: var(--text-light);
    transition: var(--transition-fast);
}

.announcement-close:hover {
    background: var(--bg-light-gray);
    color: var(--text-primary);
}

.announcement-body {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 14px;
}

.announcement-item {
    padding: 14px 0;
    border-bottom: 1px solid var(--border-color);
}

.announcement-item:last-child { border-bottom: none; }

.announcement-type {
    display: inline-block;
    padding: 3px 10px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 700;
    margin-right: 8px;
}

.announcement-type.system { background: #dbeafe; color: #1e40af; }
.announcement-type.maintenance { background: var(--warning-bg); color: #92400e; }
.announcement-type.activity { background: #ede9fe; color: #5b21b6; }

/* === 客服入口按钮 === */
.customer-service-btn {
    position: fixed;
    bottom: 32px;
    right: 24px;
    width: 56px;
    height: 56px;
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    cursor: pointer;
    box-shadow: 0 6px 20px rgba(13,148,136,0.35);
    z-index: 100;
    transition: var(--transition-fast);
}

.customer-service-btn:hover {
    transform: scale(1.08);
    box-shadow: 0 8px 28px rgba(13,148,136,0.45);
}

/* === 客服弹窗 === */
.service-modal {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.55);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 1001;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.service-modal.show { display: flex; }

.service-content {
    background: #fff;
    border-radius: var(--radius-2xl);
    padding: 28px;
    max-width: 340px;
    width: 90%;
    text-align: center;
    box-shadow: var(--shadow-xl);
    animation: slideUp 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.service-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 18px;
}

.service-qr {
    width: 200px;
    height: 200px;
    margin: 0 auto 18px;
    background: var(--bg-light-gray);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.service-hint {
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 18px;
}

.service-close {
    background: var(--bg-light-gray);
    color: var(--text-secondary);
    border: none;
    padding: 11px 28px;
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
}

.service-close:hover {
    background: var(--border-color);
    color: var(--text-primary);
}

/* === 限时活动标签 === */
.limited-time-tag {
    position: absolute;
    top: 12px;
    right: 12px;
    background: linear-gradient(135deg, #f43f5e, #e11d48);
    color: #fff;
    padding: 5px 14px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 700;
    box-shadow: 0 4px 12px rgba(244,63,94,0.3);
}

.original-price {
    text-decoration: line-through;
    color: var(--text-light);
    font-size: 12px;
    margin-left: 6px;
}

.page-enter {
    animation: pageEnter 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.slide-up {
    animation: slideUp 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(100%); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* ================================================================
   BANNER CAROUSEL（首页动态轮播）
   ================================================================ */

.banner-wrapper {
    display: grid;
    grid-template-columns: 1.6fr 1fr;
    gap: 24px;
    margin-bottom: 28px;
    align-items: stretch;
}

.banner-carousel {
    position: relative;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    background: var(--primary-gradient);
    aspect-ratio: 16/9;
    min-height: 360px;
    box-shadow: var(--shadow-lg);
}

.banner-slides {
    position: relative;
    width: 100%;
    height: 100%;
}

.banner-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
}

.banner-slide.active {
    opacity: 1;
    z-index: 1;
}

.banner-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.banner-slide-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 28px 32px;
    background: linear-gradient(transparent, rgba(0,0,0,0.65));
    color: #fff;
}

.banner-slide-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 6px;
}

.banner-slide-desc {
    font-size: 14px;
    opacity: 0.9;
}

.banner-dots {
    position: absolute;
    bottom: 16px;
    right: 24px;
    display: flex;
    gap: 10px;
    z-index: 2;
}

.banner-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.5);
    cursor: pointer;
    transition: var(--transition-fast);
}

.banner-dot.active {
    background: #fff;
    transform: scale(1.2);
}

.banner-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: rgba(255,255,255,0.2);
    backdrop-filter: blur(8px);
    border: none;
    color: #fff;
    font-size: 18px;
    cursor: pointer;
    z-index: 2;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
}

.banner-carousel:hover .banner-arrow {
    opacity: 1;
}

.banner-arrow:hover {
    background: rgba(255,255,255,0.35);
}

.banner-arrow.prev { left: 16px; }
.banner-arrow.next { right: 16px; }

/* 轮播占位图（无真实图片时用渐变） */
.banner-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #fff;
    text-align: center;
    padding: 40px;
}

.banner-placeholder-icon {
    font-size: 72px;
    margin-bottom: 16px;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.banner-placeholder h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
}

.banner-placeholder p {
    font-size: 14px;
    opacity: 0.85;
    max-width: 400px;
    line-height: 1.6;
}

/* === 右侧三个快捷模块 === */
.banner-modules {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.banner-module-card {
    flex: 1;
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: 22px 24px;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    gap: 16px;
    position: relative;
    overflow: hidden;
}

.banner-module-card::after {
    content: '';
    position: absolute;
    right: -20px;
    top: -20px;
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--accent-color);
    opacity: 0.04;
    transition: var(--transition-normal);
}

.banner-module-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent-color);
}

.banner-module-card:hover::after {
    transform: scale(2);
    opacity: 0.08;
}

.banner-module-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    flex-shrink: 0;
}

.banner-module-icon.cases {
    background: #dbeafe;
    color: #2563eb;
}

.banner-module-icon.docs {
    background: var(--success-bg);
    color: #059669;
}

.banner-module-icon.about {
    background: #ede9fe;
    color: #7c3aed;
}

.banner-module-info { flex: 1; }

.banner-module-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.banner-module-desc {
    font-size: 12px;
    color: var(--text-light);
    line-height: 1.5;
}

.banner-module-arrow {
    color: var(--text-light);
    font-size: 16px;
    transition: var(--transition-fast);
}

.banner-module-card:hover .banner-module-arrow {
    color: var(--accent-color);
    transform: translateX(3px);
}

/* ================================================================
   TWO-COLUMN DETAIL/CHAT LAYOUT（左文右聊）
   ================================================================ */

.detail-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    padding: 20px 24px;
    max-width: 1400px;
    margin: 0 auto;
    min-height: calc(100vh - 120px);
}

.detail-left {
    overflow-y: auto;
    padding-right: 8px;
}

.detail-left::-webkit-scrollbar {
    width: 4px;
}

.detail-left::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

.detail-info-card {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: 24px;
    margin-bottom: 16px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-xs);
}

.detail-info-title {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.detail-info-title .icon {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}

.detail-info-text {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.85;
}

.detail-info-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.detail-info-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.detail-info-list li::before {
    content: '✓';
    color: var(--success-color);
    font-weight: 700;
    flex-shrink: 0;
    margin-top: 1px;
}

.detail-users-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--accent-light);
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 600;
    color: var(--accent-color);
    margin-bottom: 16px;
}

/* === 右侧聊天面板 === */
.detail-right {
    display: flex;
    flex-direction: column;
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    min-height: 500px;
}

.detail-chat-header {
    display: flex;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    gap: 12px;
    background: var(--bg-light-gray);
}

.detail-chat-avatar {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-md);
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: #fff;
}

.detail-chat-name {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
}

.detail-chat-remain {
    font-size: 12px;
    color: var(--text-light);
    margin-left: auto;
}

.detail-chat-remain span {
    color: var(--accent-color);
    font-weight: 700;
}

.detail-chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    min-height: 300px;
}

.detail-chat-input {
    padding: 14px 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 10px;
    align-items: flex-end;
}

.detail-chat-input .chat-input-wrapper {
    flex: 1;
    background: var(--bg-light-gray);
    border-radius: var(--radius-lg);
    padding: 10px 14px;
    display: flex;
    align-items: flex-end;
    gap: 8px;
    border: 1.5px solid transparent;
    transition: var(--transition-fast);
}

.detail-chat-input .chat-input-wrapper:focus-within {
    border-color: var(--accent-color);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(13,148,136,0.08);
}

.detail-chat-input textarea {
    flex: 1;
    background: none;
    resize: none;
    max-height: 100px;
    line-height: 1.5;
    font-size: 14px;
    color: var(--text-primary);
    border: none;
    outline: none;
    font-family: inherit;
}

/* ================================================================
   USER CENTER OPTIMIZED（个人中心优化）
   ================================================================ */

.user-page {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
}

.user-top-card {
    background: var(--primary-gradient);
    border-radius: var(--radius-2xl);
    padding: 32px;
    color: #fff;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 24px;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.user-top-card::after {
    content: '';
    position: absolute;
    right: -40px;
    top: -40px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: rgba(255,255,255,0.06);
    pointer-events: none;
}

.user-avatar-lg {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: rgba(255,255,255,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 38px;
    flex-shrink: 0;
    border: 3px solid rgba(255,255,255,0.3);
}

.user-top-info {
    flex: 1;
}

.user-top-name {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 6px;
}

.user-top-phone {
    font-size: 14px;
    opacity: 0.85;
    margin-bottom: 8px;
}

.user-vip-tag {
    display: inline-block;
    padding: 4px 14px;
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 700;
    background: var(--gold-gradient);
}

.user-stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    margin-bottom: 24px;
}

.user-stat-item {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: 18px;
    text-align: center;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-xs);
    transition: var(--transition-fast);
}

.user-stat-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.user-stat-num {
    font-size: 26px;
    font-weight: 800;
    color: var(--accent-color);
    margin-bottom: 6px;
}

.user-stat-label {
    font-size: 12px;
    color: var(--text-light);
    font-weight: 500;
}

.user-menu-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    margin-bottom: 24px;
}

.user-menu-item {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: 22px 16px;
    text-align: center;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition-fast);
    box-shadow: var(--shadow-xs);
}

.user-menu-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent-color);
}

.user-menu-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin: 0 auto 10px;
}

.user-menu-icon.blue { background: #dbeafe; color: #2563eb; }
.user-menu-icon.green { background: #d1fae5; color: #059669; }
.user-menu-icon.purple { background: #ede9fe; color: #7c3aed; }
.user-menu-icon.orange { background: #fed7aa; color: #ea580c; }
.user-menu-icon.teal { background: var(--accent-light); color: var(--accent-color); }
.user-menu-icon.gold { background: var(--gold-light); color: #92400e; }

.user-menu-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.user-menu-desc {
    font-size: 11px;
    color: var(--text-light);
}

.user-section {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    margin-bottom: 16px;
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.user-section-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.user-section-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
}

.user-section-body {
    padding: 16px 20px;
}

/* ================================================================
   AGENT USER COUNT（智能体适用人数标签）
   ================================================================ */

.agent-users-count {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    color: var(--accent-color);
    font-weight: 600;
    background: var(--accent-light);
    padding: 3px 10px;
    border-radius: var(--radius-full);
}

.agent-users-count.inline {
    margin-left: 8px;
    vertical-align: middle;
}

/* ================================================================
   ADMIN SIDEBAR LAYOUT（管理后台侧边栏）
   ================================================================ */

.admin-layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 230px;
    background: var(--primary-gradient);
    color: #fff;
    min-height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    z-index: 90;
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    padding: 22px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar-header h1 {
    font-size: 18px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar-nav {
    list-style: none;
    padding: 8px 0;
    flex: 1;
    overflow-y: auto;
}

.sidebar-nav li { margin: 2px 0; }

.sidebar-nav li a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 13px 22px;
    color: rgba(255,255,255,0.85);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.sidebar-nav li a:hover {
    background: rgba(255,255,255,0.1);
    border-left-color: var(--accent-color);
}

.sidebar-nav li.active a {
    background: rgba(255,255,255,0.15);
    border-left-color: var(--gold-color);
    color: #fff;
    font-weight: 600;
}

.sidebar-footer {
    padding: 14px 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 13px;
}

.admin-main {
    margin-left: 230px;
    flex: 1;
    min-height: 100vh;
    background: var(--bg-color);
}

.admin-topbar {
    background: #fff;
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-xs);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 80;
}

.admin-topbar-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

.admin-topbar-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.admin-name {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Panel（管理后台卡片面板） */
.panel {
    background: #fff;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xs);
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
}

.panel-header {
    padding: 18px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.panel-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.panel-body { padding: 20px 24px; }

.admin-table {
    width: 100%;
    border-collapse: collapse;
}

.admin-table th, .admin-table td {
    padding: 13px 14px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    font-size: 14px;
}

.admin-table th {
    background: var(--bg-light-gray);
    font-weight: 700;
    color: var(--text-secondary);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.admin-table td { color: var(--text-primary); }
.admin-table tr:last-child td { border-bottom: none; }
.admin-table tr:hover td { background: rgba(13,148,136,0.03); }

.btn-edit {
    background: var(--accent-color);
    color: #fff;
    padding: 5px 12px;
    font-size: 12px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    margin-right: 6px;
    border: none;
    cursor: pointer;
    transition: var(--transition-fast);
}
.btn-edit:hover { background: var(--accent-hover); }

.btn-delete {
    background: var(--error-color);
    color: #fff;
    padding: 5px 12px;
    font-size: 12px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    transition: var(--transition-fast);
}
.btn-delete:hover { background: #dc2626; }

.status-on {
    display: inline-block;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 600;
    background: var(--success-bg);
    color: #065f46;
}

.status-off {
    display: inline-block;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 600;
    background: var(--warning-bg);
    color: #92400e;
}

/* 管理后台表单 */
.form-control {
    width: 100%;
    padding: 11px 16px;
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 14px;
    transition: var(--transition-fast);
    background: var(--bg-light-gray);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-color);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(13,148,136,0.08);
}

select.form-control { cursor: pointer; }

.form-row {
    display: flex;
    gap: 16px;
}

.form-row .form-group { flex: 1; }

.admin-page-content { padding: 24px; }

/* Tabs导航（管理后台） */
.tabs-nav {
    display: flex;
    background: #fff;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 24px;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    overflow: hidden;
}

.tab-item {
    padding: 14px 24px;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    font-size: 14px;
    color: var(--text-secondary);
    transition: all 0.2s;
    font-weight: 500;
}

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

.tab-item.active {
    color: var(--accent-color);
    border-bottom-color: var(--accent-color);
    font-weight: 700;
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    padding: 20px 0;
}

.pagination button {
    padding: 8px 14px;
    border: 1.5px solid var(--border-color);
    background: #fff;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 14px;
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.pagination button:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.pagination button.active {
    background: var(--accent-color);
    color: #fff;
    border-color: var(--accent-color);
}

.modal-footer {
    padding: 18px 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

/* ================================================================
   RESPONSIVE — 手机端 (≤480px)
   ================================================================ */

@media (max-width: 480px) {
    html { font-size: 15px; }

    .header-content { padding: 10px 14px; }
    .header-logo-text { font-size: 16px; }

    /* Banner 移动端堆叠 */
    .banner-wrapper {
        grid-template-columns: 1fr;
        gap: 14px;
    }
    .banner-carousel {
        aspect-ratio: 16/10;
        min-height: 200px;
    }
    .banner-slide-overlay { padding: 18px 20px; }
    .banner-slide-title { font-size: 18px; }
    .banner-placeholder-icon { font-size: 48px; }
    .banner-placeholder h3 { font-size: 18px; }
    .banner-modules { gap: 10px; }
    .banner-module-card { padding: 16px 18px; }

    /* 英雄区 */
    .hero-section {
        grid-template-columns: 1fr !important;
        padding: 24px 20px;
    }
    .hero-title { font-size: 22px; }
    .hero-subtitle { font-size: 13px; }

    /* 两栏布局 → 单栏 */
    .detail-layout {
        grid-template-columns: 1fr;
        gap: 14px;
        padding: 14px;
    }
    .detail-right {
        min-height: 400px;
        max-height: 60vh;
    }

    /* 用户中心移动端 */
    .user-top-card { flex-direction: column; text-align: center; padding: 24px; }
    .user-stats-row { grid-template-columns: repeat(2, 1fr); }
    .user-menu-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .user-menu-item { padding: 16px 12px; }

    /* 智能体卡片 */
    .agent-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .detail-banner { height: 180px; }
    .package-card { padding: 18px; }

    /* 管理后台 */
    .sidebar { width: 180px; }
    .admin-main { margin-left: 180px; }
    .admin-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    .admin-stats > :last-child { grid-column: span 2; }
}

/* ================================================================
   RESPONSIVE — 平板端 (≥768px)
   ================================================================ */

@media (min-width: 768px) {
    html { font-size: 16px; }

    .container { padding: 0 24px; }
    .header-content { padding: 14px 24px; }

    .banner-carousel { aspect-ratio: 16/8; }
    .banner-module-card { padding: 20px 22px; }

    /* 两栏布局：平板端仍保持两栏但缩小间距 */
    .detail-layout {
        grid-template-columns: 1fr 1fr;
        gap: 18px;
        padding: 18px 20px;
    }

    .hero-section {
        grid-template-columns: 3fr 2fr;
        padding: 40px 36px;
        gap: 32px;
    }

    .hero-title { font-size: 30px; }
    .hero-subtitle { font-size: 15px; }

    .agent-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 18px;
    }

    /* 用户中心平板 */
    .user-stats-row { grid-template-columns: repeat(4, 1fr); }
    .user-menu-grid { grid-template-columns: repeat(3, 1fr); gap: 14px; }

    .category-tabs {
        justify-content: center;
        padding: 22px 0;
    }

    .category-tab {
        padding: 10px 24px;
        font-size: 15px;
    }

    .form-container {
        max-width: 460px;
        margin: 0 auto;
    }

    .package-list {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }

    .package-card.popular { transform: scale(1.05); }

    .admin-stats { margin-top: -40px; }
}

/* ================================================================
   RESPONSIVE — 电脑端 (≥1200px)
   ================================================================ */

@media (min-width: 1200px) {
    html { font-size: 17px; }

    .container { padding: 0 24px; }
    .header-content { padding: 16px 24px; }

    .hero-section {
        grid-template-columns: 2fr 1fr;
        padding: 52px 48px;
        gap: 44px;
        border-radius: 28px;
    }

    .hero-title { font-size: 36px; line-height: 1.3; }
    .hero-subtitle { font-size: 17px; line-height: 1.75; }
    .hero-btn { padding: 18px 36px; font-size: 16px; }

    .quick-card { padding: 22px; }
    .quick-card-title { font-size: 17px; }
    .quick-card-desc { font-size: 14px; }
    .quick-mini { padding: 18px 22px; }

    .agent-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 22px;
        padding-bottom: 32px;
    }

    .agent-card { padding: 20px; }
    .agent-avatar { width: 56px; height: 56px; font-size: 26px; }
    .agent-name { font-size: 17px; }
    .agent-desc { font-size: 14px; }

    .category-tabs { padding: 28px 0; gap: 14px; }
    .category-tab { padding: 12px 28px; font-size: 15px; }

    .form-container { max-width: 500px; }
    .package-list { gap: 28px; }
    .package-card { padding: 28px; }

    .admin-stats { margin-top: -48px; padding: 0 24px; }
    .admin-stat-card { padding: 22px; }
    .admin-stat-icon { width: 50px; height: 50px; font-size: 26px; }
    .admin-stat-value { font-size: 30px; }
}

/* ================================================================
   RESPONSIVE — 超大屏幕 (≥1600px)
   ================================================================ */

@media (min-width: 1600px) {
    .container { max-width: 1320px; }
    .header-content { max-width: 1320px; }
    .footer { max-width: 1320px; }
}

/* ================================================================
   搜索栏
   ================================================================ */
.search-bar {
    margin-bottom: 20px;
}
.search-input-wrapper {
    position: relative;
    max-width: 520px;
    margin: 0 auto;
}
.search-icon {
    position: absolute; left: 16px; top: 50%;
    transform: translateY(-50%); font-size: 18px;
    pointer-events: none;
}
.search-input {
    width: 100%; padding: 12px 44px 12px 46px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-full);
    font-size: 15px; background: var(--bg-white);
    transition: var(--transition-fast);
    outline: none;
}
.search-input:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(13,148,136,0.12);
}
.search-clear {
    position: absolute; right: 12px; top: 50%;
    transform: translateY(-50%);
    cursor: pointer; color: var(--text-light);
    font-size: 16px; padding: 4px 8px;
    border-radius: 50%; display: inline-flex; align-items: center; justify-content: center;
}
.search-clear:hover { background: var(--bg-light-gray); color: var(--text-primary); }

/* ================================================================
   Banner图片模式
   ================================================================ */
.banner-slide-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute; top: 0; left: 0;
}
.banner-slide-overlay {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    padding: 20px 30px;
    background: linear-gradient(transparent, rgba(0,0,0,0.65));
    color: #fff;
    z-index: 1;
}
.banner-slide-title { font-size: 22px; font-weight: 700; margin-bottom: 6px; }
.banner-slide-desc { font-size: 14px; opacity: 0.9; }

/* ================================================================
   站点设置子标签
   ================================================================ */
.setting-tab {
    padding: 10px 20px;
    background: none; border: none;
    cursor: pointer; color: var(--text-secondary);
    font-size: 14px; font-weight: 500;
    border-bottom: 3px solid transparent;
    transition: var(--transition-fast);
}
.setting-tab.active {
    color: var(--accent-color);
    border-bottom-color: var(--accent-color);
}
.setting-tab:hover { color: var(--text-primary); }

.setting-card { transition: box-shadow 0.2s; }
.setting-card:hover { box-shadow: 0 2px 8px rgba(0,0,0,0.06); }