/* 全局样式 - 2025现代暗色主题 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 深色主题配色 - 2025流行色 */
    --bg-primary: #0a0e27;
    --bg-secondary: #1a1d3a;
    --bg-card: rgba(26, 29, 58, 0.8);
    --bg-glass: rgba(255, 255, 255, 0.05);

    /* 强调色 */
    --accent-purple: #8b5cf6;
    --accent-blue: #3b82f6;
    --accent-cyan: #06b6d4;
    --accent-green: #10b981;
    --accent-red: #ef4444;

    /* 渐变色 */
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #8b5cf6 0%, #3b82f6 100%);
    --gradient-3: linear-gradient(135deg, #06b6d4 0%, #8b5cf6 100%);

    /* 文字颜色 */
    --text-primary: #f9fafb;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;

    /* 边框和阴影 */
    --border-color: rgba(255, 255, 255, 0.1);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(139, 92, 246, 0.3);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
    background: var(--bg-primary);
    background-image:
        radial-gradient(at 0% 0%, rgba(139, 92, 246, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(59, 130, 246, 0.15) 0px, transparent 50%);
    min-height: 100vh;
    color: var(--text-primary);
    line-height: 1.6;
}

.container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 24px;
}

/* 头部样式 - 简洁设计 */
header {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 20px 28px;
    border-radius: 12px;
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h1 {
    color: var(--text-primary);
    font-size: 24px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}

header h1 svg {
    stroke: var(--accent-purple);
    flex-shrink: 0;
}

.header-info {
    display: flex;
    align-items: center;
    gap: 16px;
}

.logout-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
}

.logout-btn:hover {
    background: rgba(239, 68, 68, 0.15);
    border-color: var(--accent-red);
    color: var(--accent-red);
    transform: translateY(-1px);
}

/* 状态指示器 - 简洁设计 */
.status {
    padding: 8px 16px;
    border-radius: 8px;
    font-weight: 500;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.status::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
}

.status.online {
    background: rgba(16, 185, 129, 0.12);
    color: var(--accent-green);
    border: 1px solid rgba(16, 185, 129, 0.25);
}

.status.online::before {
    background: var(--accent-green);
}

.status.offline {
    background: rgba(239, 68, 68, 0.12);
    color: var(--accent-red);
    border: 1px solid rgba(239, 68, 68, 0.25);
}

.status.offline::before {
    background: var(--accent-red);
}

/* 主内容区 */
main {
    /* 移除动画 */
}

/* 视频容器 - 简洁设计 */
.video-container {
    position: relative;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto 20px;
    background: var(--bg-secondary);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

/* 全屏按钮 - 现代玻璃态设计 */
.fullscreen-btn {
    position: absolute;
    bottom: 20px;
    right: 20px;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.15), rgba(59, 130, 246, 0.15));
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 16px;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 100;
    box-shadow:
        0 8px 32px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    opacity: 0.85;
}

.fullscreen-btn:hover {
    opacity: 1;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.35), rgba(59, 130, 246, 0.35));
    border-color: rgba(139, 92, 246, 0.5);
    transform: translateY(-2px) scale(1.08);
    box-shadow:
        0 12px 40px rgba(139, 92, 246, 0.4),
        0 0 0 1px rgba(139, 92, 246, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.fullscreen-btn:active {
    transform: translateY(0) scale(1.02);
    transition: all 0.1s ease;
}

.fullscreen-btn svg {
    stroke: currentColor;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.fullscreen-btn:hover svg {
    transform: scale(1.1);
}

/* 全屏状态样式 */
.video-container:fullscreen {
    max-width: 100%;
    border-radius: 0;
    margin: 0;
}

.video-container:-webkit-full-screen {
    max-width: 100%;
    border-radius: 0;
    margin: 0;
}

.video-container:-moz-full-screen {
    max-width: 100%;
    border-radius: 0;
    margin: 0;
}

.video-container:-ms-fullscreen {
    max-width: 100%;
    border-radius: 0;
    margin: 0;
}

/* 全屏时图片自适应 - 已移至文件末尾的横屏规则 */

/* 加载动画 */
.loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    z-index: 10;
    background: rgba(10, 14, 39, 0.9);
    padding: 24px 36px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
}

.loading svg {
    stroke: var(--accent-purple);
}

.loading span {
    color: var(--text-primary);
    font-size: 14px;
}

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

/* 错误消息 */
.error-message {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(239, 68, 68, 0.95);
    color: white;
    padding: 20px 32px;
    border-radius: 10px;
    font-size: 14px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 10;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.error-message svg {
    stroke: white;
    flex-shrink: 0;
}

/* 控制面板 - 简洁布局 */
.control-panel {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 24px;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.control-group label {
    font-weight: 500;
    font-size: 13px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.control-group label svg {
    stroke: var(--accent-purple);
    flex-shrink: 0;
}

/* 按钮组 - 简洁设计 */
.button-group {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.button-group button {
    padding: 10px 20px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 8px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.button-group button svg {
    stroke: currentColor;
    flex-shrink: 0;
}

.button-group button:hover {
    border-color: var(--accent-purple);
    background: rgba(139, 92, 246, 0.1);
}

.button-group button.active {
    background: var(--accent-purple);
    border-color: var(--accent-purple);
    color: white;
}

/* 信息面板 - 简洁卡片 */
.info-panel {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
}

.info-item {
    padding: 16px;
    background: var(--bg-primary);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.info-label {
    display: flex;
    align-items: center;
    font-size: 11px;
    color: var(--text-muted);
    margin-bottom: 8px;
    font-weight: 500;
}

.info-label svg {
    stroke: var(--accent-cyan);
    flex-shrink: 0;
}

.info-item span:last-child {
    display: block;
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
}

/* 页脚 */
footer {
    margin-top: 24px;
    text-align: center;
    color: var(--text-muted);
    font-size: 13px;
    padding: 20px;
    border-top: 1px solid var(--border-color);
}

footer p {
    opacity: 0.6;
}

/* 登录页面样式 */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 40px 20px;
    /* 不用 100vh,让 base.html 的 nav/footer 正常显示 */
}

.login-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 40px;
    border-radius: 12px;
    width: 100%;
    max-width: 420px;
}

.login-box h1 {
    color: var(--text-primary);
    font-size: 28px;
    font-weight: 600;
    text-align: center;
    margin-bottom: 8px;
}

.login-box h2 {
    color: var(--text-secondary);
    font-size: 15px;
    font-weight: 400;
    text-align: center;
    margin-bottom: 28px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 13px;
}

.form-group input,
.form-group select,
.styled-select {
    width: 100%;
    padding: 12px 14px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
    color: var(--text-primary);
    transition: border-color 0.2s ease;
}

.form-group select,
.styled-select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%239ca3af' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
    cursor: pointer;
}

.form-group select option,
.styled-select option {
    background: var(--bg-secondary);
    color: var(--text-primary);
    padding: 8px;
}

.form-group select:focus,
.styled-select:focus {
    outline: none;
    border-color: var(--accent-purple);
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent-purple);
}

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

.btn-primary {
    width: 100%;
    padding: 12px;
    background: var(--accent-purple);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
    cursor: pointer;
    transition: background 0.2s ease;
}

.btn-primary:hover {
    background: rgba(139, 92, 246, 0.9);
}

.alert {
    padding: 12px 14px;
    border-radius: 8px;
    margin-bottom: 20px;
    border: 1px solid;
}

.alert-error {
    background: rgba(239, 68, 68, 0.12);
    color: #fca5a5;
    border-color: rgba(239, 68, 68, 0.25);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 16px;
    }

    header {
        flex-direction: column;
        gap: 12px;
        padding: 16px;
    }

    header h1 {
        font-size: 20px;
        justify-content: center;
    }

    .control-panel {
        padding: 20px;
        gap: 20px;
    }

    .info-panel {
        grid-template-columns: 1fr 1fr;
    }

    .login-box {
        padding: 32px 24px;
    }

    /* 移动端全屏按钮缩小 */
    .fullscreen-btn {
        width: 44px;
        height: 44px;
        bottom: 12px;
        right: 12px;
        border-radius: 12px;
    }

    .fullscreen-btn svg {
        width: 18px;
        height: 18px;
    }
}

/* 小屏幕进一步优化 */
@media (max-width: 480px) {
    .fullscreen-btn {
        width: 40px;
        height: 40px;
        bottom: 10px;
        right: 10px;
        border-radius: 10px;
    }

    .fullscreen-btn svg {
        width: 16px;
        height: 16px;
    }
}

/* 滚动条美化 */
::-webkit-scrollbar {
    width: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--bg-glass);
    border-radius: 5px;
    border: 2px solid var(--bg-primary);
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(139, 92, 246, 0.3);
}

/* 选中文本样式 */
::selection {
    background: rgba(139, 92, 246, 0.3);
    color: var(--text-primary);
}

::-moz-selection {
    background: rgba(139, 92, 246, 0.3);
    color: var(--text-primary);
}

/* 摄像头开关按钮 */
.toggle-camera-btn {
    width: 100%;
    padding: 10px 20px;
    font-size: 13px;
    font-weight: 500;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.toggle-camera-btn svg {
    stroke: currentColor;
    flex-shrink: 0;
}

.toggle-camera-btn.camera-on {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.toggle-camera-btn.camera-on:hover {
    border-color: var(--accent-purple);
    background: rgba(139, 92, 246, 0.1);
}

.toggle-camera-btn.camera-off {
    background: var(--accent-purple);
    border: 1px solid var(--accent-purple);
    color: white;
}

.toggle-camera-btn.camera-off:hover {
    background: rgba(139, 92, 246, 0.8);
}


/* 全屏横屏显示 */
#videoContainer:fullscreen #mjpegPlayer,
#videoContainer:-webkit-full-screen #mjpegPlayer,
#videoContainer:-moz-full-screen #mjpegPlayer,
#videoContainer:-ms-fullscreen #mjpegPlayer {
    width: 100vh !important;
    height: 100vw !important;
    max-width: none !important;
    max-height: none !important;
    object-fit: cover;
    transform: rotate(90deg);
    transform-origin: center center;
    position: absolute;
    top: 50%;
    left: 50%;
    margin-left: -50vh;
    margin-top: -50vw;
}

#videoContainer:fullscreen,
#videoContainer:-webkit-full-screen,
#videoContainer:-moz-full-screen,
#videoContainer:-ms-fullscreen {
    display: flex;
    align-items: center;
    justify-content: center;
    background: #000;
    position: relative;
    overflow: hidden;
}

/* ====================================================================
   公开站点（首页 / 政策页 / 登录 / 注册）— 共享导航栏 + 页脚 + 布局
   所有颜色/间距复用 :root 定义的 2025 暗色主题变量,不引入新配色
   ==================================================================== */

/* 公开页面用更窄的 container,避免长文字占满宽屏不好读 */
body.public-site .container {
    max-width: 1200px;
}

/* ---- 顶部导航 ---- */
.site-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 28px;
    margin-bottom: 32px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 16px;
    z-index: 10;
    backdrop-filter: blur(12px);
}

.site-nav .brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-primary);
    font-size: 20px;
    font-weight: 700;
    text-decoration: none;
    letter-spacing: 0.5px;
}

.site-nav .brand i {
    width: 24px;
    height: 24px;
    stroke: var(--accent-purple);
}

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

.site-nav .nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.2s;
}

.site-nav .nav-links a:hover {
    color: var(--accent-purple);
}

.site-nav .lang-switch {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-muted);
    margin-left: 4px;
}

.site-nav .lang-switch a {
    color: var(--text-muted);
    font-size: 13px;
}

.site-nav .lang-switch .lang-active {
    color: var(--accent-purple);
    font-weight: 600;
}

.site-nav .nav-cta {
    background: var(--gradient-2);
    color: #fff !important;
    padding: 8px 18px;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s, box-shadow 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.site-nav .nav-cta:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-glow);
}

/* ---- 页脚 ---- */
.site-footer {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 32px;
    padding: 40px 28px;
    margin-top: 80px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
}

.site-footer .footer-col strong {
    display: block;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 14px;
    letter-spacing: 0.3px;
}

.site-footer .footer-col a,
.site-footer .footer-col p,
.site-footer .footer-col .muted {
    display: block;
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.9;
    text-decoration: none;
    transition: color 0.2s;
}

.site-footer .footer-col a:hover {
    color: var(--accent-purple);
}

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

.copyright {
    text-align: center;
    color: var(--text-muted);
    font-size: 12px;
    padding: 20px 0 8px;
}

@media (max-width: 900px) {
    .site-footer {
        grid-template-columns: 1fr 1fr;
    }
    .site-nav .nav-links {
        gap: 14px;
    }
}

/* ---- Hero ---- */
.hero {
    text-align: center;
    padding: 80px 20px 100px;
}

.hero h1 {
    font-size: 56px;
    line-height: 1.2;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 24px;
    letter-spacing: -1px;
}

.hero h1 .hero-accent {
    background: var(--gradient-3);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero-sub {
    font-size: 18px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 40px;
}

.hero .cta-row {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.cta-primary,
.cta-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s;
}

.cta-primary {
    background: var(--gradient-2);
    color: #fff;
    box-shadow: var(--shadow-md);
}

.cta-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.cta-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.cta-secondary:hover {
    border-color: var(--accent-purple);
    color: var(--accent-purple);
}

.cta-primary i,
.cta-secondary i {
    width: 18px;
    height: 18px;
}

@media (max-width: 900px) {
    .hero { padding: 40px 12px 60px; }
    .hero h1 { font-size: 36px; }
    .hero-sub { font-size: 15px; }
}

/* ---- 通用 section 标题 ---- */
.section-title {
    font-size: 36px;
    font-weight: 700;
    text-align: center;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.section-sub {
    font-size: 15px;
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 48px;
}

/* ---- 服务卡片 ---- */
.services-section,
.pricing-section,
.contact-section {
    padding: 60px 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 32px 28px;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.service-card:hover {
    transform: translateY(-4px);
    border-color: rgba(139, 92, 246, 0.4);
    box-shadow: var(--shadow-md);
}

.service-card .icon-wrap {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    background: var(--gradient-2);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    box-shadow: var(--shadow-glow);
}

.service-card .icon-wrap i {
    width: 28px;
    height: 28px;
    stroke: #fff;
}

.service-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.service-card > p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 20px;
}

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

.feature-list li {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 13px;
    padding: 4px 0;
}

.feature-list li i {
    width: 16px;
    height: 16px;
    stroke: var(--accent-green);
    flex-shrink: 0;
}

@media (max-width: 900px) {
    .services-grid { grid-template-columns: 1fr; }
    .section-title { font-size: 28px; }
}

/* ---- 定价卡片 ---- */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    align-items: stretch;
}

/* 4 档套餐(Starter/Pro/Max/Enterprise)用 4 列; 中屏幕 2x2; 手机单列 */
.pricing-grid-4 {
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
}

@media (max-width: 1100px) {
    .pricing-grid-4 { grid-template-columns: repeat(2, 1fr); }
}

.pricing-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 36px 28px;
    text-align: center;
    position: relative;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s, box-shadow 0.3s;
}

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.pricing-card.featured {
    border: 2px solid transparent;
    background:
        linear-gradient(var(--bg-card), var(--bg-card)) padding-box,
        var(--gradient-1) border-box;
    box-shadow: var(--shadow-glow);
}

.plan-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-1);
    color: #fff;
    padding: 4px 14px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.8px;
    text-transform: uppercase;
}

.pricing-card .plan-name {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 20px;
    letter-spacing: 0.5px;
}

.pricing-card .price {
    font-size: 56px;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: 8px;
}

.pricing-card .price .currency {
    font-size: 22px;
    font-weight: 500;
    vertical-align: super;
    color: var(--text-secondary);
    margin-right: 2px;
}

.pricing-card .price .unit {
    font-size: 16px;
    font-weight: 400;
    color: var(--text-secondary);
}

.pricing-card .price .custom-price {
    font-size: 28px;
    font-weight: 600;
    color: var(--accent-purple);
}

.pricing-card .plan-tag {
    color: var(--text-muted);
    font-size: 13px;
    margin-bottom: 24px;
}

.pricing-card .feature-list {
    text-align: left;
    margin-bottom: 28px;
    flex-grow: 1;
}

.pricing-card .feature-list li {
    padding: 6px 0;
    font-size: 14px;
}

.plan-cta {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.plan-cta:hover {
    border-color: var(--accent-purple);
    color: var(--accent-purple);
}

.plan-cta-primary {
    background: var(--gradient-2);
    color: #fff !important;
    border: none;
    box-shadow: var(--shadow-md);
}

.plan-cta-primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-glow);
}

/* Enterprise 卡片"请先注册/登录"提示 + 双按钮 */
.enterprise-hint {
    font-size: 12px;
    color: var(--text-muted);
    text-align: center;
    margin-bottom: 14px;
    line-height: 1.6;
}

.enterprise-hint a {
    color: var(--accent-purple);
    text-decoration: none;
    font-weight: 500;
}

.enterprise-hint a:hover {
    text-decoration: underline;
}

.enterprise-cta-row {
    display: flex;
    gap: 8px;
    justify-content: center;
}

.enterprise-cta-row .plan-cta {
    flex: 1;
    padding: 10px 14px;
    font-size: 13px;
}

@media (max-width: 900px) {
    .pricing-grid,
    .pricing-grid-4 { grid-template-columns: 1fr; }
}

/* ---- 联系区 ---- */
.contact-card {
    max-width: 500px;
    margin: 0 auto;
    padding: 40px 32px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.contact-card .contact-icon {
    width: 40px;
    height: 40px;
    stroke: var(--accent-purple);
    margin-bottom: 16px;
}

.contact-email {
    display: inline-block;
    font-size: 22px;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
    margin-bottom: 16px;
    transition: color 0.2s;
}

.contact-email:hover {
    color: var(--accent-purple);
}

.contact-hours {
    color: var(--text-muted);
    font-size: 13px;
    margin: 0;
}

/* ---- 法律/政策页 ---- */
.legal-page {
    max-width: 760px;
    margin: 60px auto;
    padding: 0 20px;
    line-height: 1.8;
    color: var(--text-secondary);
}

.legal-page h1 {
    font-size: 42px;
    font-weight: 700;
    background: var(--gradient-3);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 8px;
}

.legal-page .updated-at {
    color: var(--text-muted);
    font-style: italic;
    margin-bottom: 32px;
    font-size: 14px;
}

.legal-page h2 {
    color: var(--accent-purple);
    font-size: 20px;
    font-weight: 600;
    margin: 36px 0 14px;
}

.legal-page p {
    font-size: 15px;
    margin-bottom: 12px;
    color: var(--text-secondary);
}

.legal-page ul,
.legal-page ol {
    padding-left: 24px;
    margin-bottom: 16px;
}

.legal-page ul li,
.legal-page ol li {
    font-size: 15px;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.legal-page strong {
    color: var(--text-primary);
    font-weight: 600;
}

.legal-page a {
    color: var(--accent-cyan);
    text-decoration: underline;
    text-decoration-color: rgba(6, 182, 212, 0.4);
    transition: text-decoration-color 0.2s;
}

.legal-page a:hover {
    text-decoration-color: var(--accent-cyan);
}

/* ====================================================================
   特定商取引法 (Commercial Disclosure) 页面
   日文为法律正文,中文为辅助译文(muted 样式)
   ==================================================================== */

.disclosure-subtitle {
    color: var(--text-secondary);
    font-size: 15px;
    margin-top: -4px;
    margin-bottom: 8px;
}

.disclosure-intro {
    margin-bottom: 8px;
    line-height: 1.8;
}

.disclosure-intro.zh-aux {
    color: var(--text-muted);
    font-size: 13px;
    margin-bottom: 24px;
}

.disclosure-table {
    margin-top: 32px;
    padding: 0;
}

.disclosure-table dt {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: 24px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--border-color);
}

.disclosure-table dt:first-of-type {
    margin-top: 0;
}

.disclosure-table dt .zh-aux {
    font-weight: 400;
    color: var(--text-muted);
    font-size: 13px;
    margin-left: 6px;
}

.disclosure-table dd {
    margin: 10px 0 0 0;
    padding: 0;
    font-size: 15px;
    line-height: 1.7;
    color: var(--text-secondary);
}

.disclosure-table dd > div:not(.zh-aux) {
    color: var(--text-secondary);
}

.disclosure-table dd .zh-aux {
    color: var(--text-muted);
    font-size: 13px;
    margin-top: 4px;
}

.disclosure-table dd a,
.disclosure-intro a {
    color: var(--accent-cyan);
    text-decoration: underline;
    text-decoration-color: rgba(6, 182, 212, 0.4);
}

.disclosure-footer-note {
    margin-top: 40px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
    font-size: 14px;
    color: var(--text-secondary);
}

.disclosure-footer-note.zh-aux {
    color: var(--text-muted);
    font-size: 12px;
    margin-top: 4px;
    padding-top: 0;
    border-top: none;
}

/* 定价区货币标注: 明确告知是人民币 CNY, 防止 ¥ 被误读为日元 */
.pricing-currency-note {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: -16px;
    margin-bottom: 40px;
    font-style: italic;
}

/* ====================================================================
   /dashboard/subscribe 订阅控制台(Phase 4)
   ==================================================================== */

.subscribe-console {
    max-width: 960px;
    margin: 40px auto;
    padding: 0 20px;
}

.console-title {
    font-size: 32px;
    font-weight: 700;
    background: var(--gradient-3);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 6px;
}

.console-sub {
    color: var(--text-secondary);
    font-size: 15px;
    margin-bottom: 32px;
}

.console-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 28px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
}

.console-card .card-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--border-color);
}

.console-card .card-header i {
    width: 22px;
    height: 22px;
    stroke: var(--accent-purple);
}

.console-card .card-header h2 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.console-card .hint {
    color: var(--text-muted);
    font-size: 13px;
    line-height: 1.7;
    margin: 10px 0;
}

/* ---- 余额 ---- */
.balance-big {
    font-size: 48px;
    font-weight: 800;
    color: var(--text-primary);
    text-align: center;
    padding: 14px 0 22px;
    letter-spacing: 0.5px;
}

.balance-big .currency {
    font-size: 24px;
    vertical-align: super;
    color: var(--text-secondary);
    margin-right: 2px;
}

.balance-big .currency-label {
    font-size: 14px;
    color: var(--text-muted);
    font-weight: 400;
    margin-left: 8px;
}

.recharge-area label,
.pack-purchase label {
    display: block;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-weight: 500;
}

.input-row {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

.input-row input[type=number] {
    flex: 0 0 140px;
    padding: 10px 14px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 16px;
    font-family: inherit;
}

.input-row input[type=number]:focus {
    outline: none;
    border-color: var(--accent-purple);
}

.input-row .total-display {
    color: var(--text-secondary);
    font-size: 15px;
    font-weight: 500;
    padding: 0 4px;
}

.quick-picks {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    margin-bottom: 14px;
}

.pick-btn {
    padding: 5px 12px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-secondary);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.15s;
}

.pick-btn:hover {
    border-color: var(--accent-purple);
    color: var(--accent-purple);
}

.btn-secondary, .btn-danger {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 18px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-secondary:hover { border-color: var(--accent-purple); color: var(--accent-purple); }

.btn-danger {
    border-color: rgba(239, 68, 68, 0.4);
    color: var(--accent-red);
}
.btn-danger:hover { background: rgba(239, 68, 68, 0.1); }

.btn-primary:disabled {
    opacity: 0.45;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

.btn-primary-boost {
    background: var(--gradient-1);
}

/* ---- 当前套餐 ---- */
.current-plan { padding: 4px 0; }

.plan-status-line {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 18px;
    flex-wrap: wrap;
}

.plan-badge-active {
    background: var(--gradient-2);
    color: #fff;
    padding: 4px 14px;
    border-radius: 14px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.plan-price, .plan-quota {
    color: var(--text-secondary);
    font-size: 14px;
}

.plan-usage {
    margin: 16px 0;
}

.usage-bar-track {
    width: 100%;
    height: 10px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 5px;
    overflow: hidden;
    margin-bottom: 10px;
}

.usage-bar-fill {
    height: 100%;
    background: var(--gradient-2);
    transition: width 0.5s ease;
    border-radius: 5px;
}

.plan-usage p {
    font-size: 13px;
    color: var(--text-muted);
}

.plan-expiry {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    font-size: 13px;
    margin: 10px 0 20px;
}

.plan-expiry i {
    width: 14px;
    height: 14px;
    stroke: var(--text-muted);
}

.plan-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding-top: 14px;
    border-top: 1px solid var(--border-color);
}

/* ---- 未开通状态: 3 档 mini cards ---- */
.plan-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 16px;
}

.plan-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 22px 18px;
    text-align: center;
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.plan-card-featured {
    border: 2px solid transparent;
    background:
        linear-gradient(var(--bg-primary), var(--bg-primary)) padding-box,
        var(--gradient-1) border-box;
}

.plan-card .plan-badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
}

.plan-card-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 16px;
}

.plan-card-price {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
}

.plan-card-price span {
    font-size: 14px;
    font-weight: 400;
    color: var(--text-secondary);
}

.plan-card-quota {
    color: var(--text-secondary);
    font-size: 13px;
    margin-bottom: 10px;
}

.plan-card .btn-primary {
    width: 100%;
    padding: 10px;
    font-size: 14px;
}

@media (max-width: 700px) {
    .plan-grid { grid-template-columns: 1fr; }
}

/* ---- 流量包 ---- */
.pack-balance {
    background: rgba(139, 92, 246, 0.08);
    border: 1px solid rgba(139, 92, 246, 0.25);
    border-radius: 10px;
    padding: 12px 16px;
    margin: 14px 0;
    display: flex;
    gap: 12px;
    align-items: baseline;
    font-size: 14px;
}

.pack-balance strong {
    font-size: 22px;
    color: var(--accent-purple);
    font-weight: 700;
}

/* ---- 账单流水表 ---- */
.tx-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.tx-table th {
    text-align: left;
    color: var(--text-muted);
    padding: 10px 10px;
    border-bottom: 1px solid var(--border-color);
    font-weight: 500;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.tx-table td {
    padding: 12px 10px;
    color: var(--text-secondary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.tx-table .num { text-align: right; }
.tx-table .mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; }
.tx-table .pos { color: var(--accent-green); }
.tx-table .neg { color: var(--accent-red); }

/* ====================================================================
   /dashboard/subscribe 美化(方案 A)
   叠加在 Phase 4 基础样式之上,零 HTML 结构变动
   ==================================================================== */

/* ---- Hero 标题 ---- */
.subscribe-console .console-title {
    font-size: 38px;
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-bottom: 8px;
    animation: console-fade-in 0.4s ease-out;
}

@keyframes console-fade-in {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ---- 卡片通用加强 ---- */
.subscribe-console .console-card {
    position: relative;
    overflow: hidden;
    transition: border-color 0.25s, transform 0.25s;
    animation: console-fade-in 0.5s ease-out;
}

/* 顶部极细装饰条 */
.subscribe-console .console-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    opacity: 0.8;
}

.card-balance::before       { background: linear-gradient(90deg, #10b981, #06b6d4); }
.card-recharge::before      { background: linear-gradient(90deg, #3b82f6, #8b5cf6); }
.card-plan::before          { background: linear-gradient(90deg, #8b5cf6, #3b82f6); }
.card-pack::before          { background: linear-gradient(90deg, #06b6d4, #8b5cf6); }
.card-pack-balance::before  { background: linear-gradient(90deg, #06b6d4, #8b5cf6); }
.card-pack-purchase::before { background: linear-gradient(90deg, #8b5cf6, #ec4899); }
.card-ledger::before        { background: linear-gradient(90deg, #6b7280, #9ca3af); }

/* 各卡片 header 的 icon 主题色 */
.card-balance       .card-header i { stroke: var(--accent-green); }
.card-recharge      .card-header i { stroke: var(--accent-blue); }
.card-plan          .card-header i { stroke: var(--accent-purple); }
.card-pack          .card-header i { stroke: var(--accent-cyan); }
.card-pack-balance  .card-header i { stroke: var(--accent-cyan); }
.card-pack-purchase .card-header i { stroke: var(--accent-purple); }
.card-ledger        .card-header i { stroke: var(--text-muted); }

/* 余额 + 充值 一行两块 (大屏), 小屏自动堆叠 */
.console-row {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 24px;
    margin-bottom: 24px;
}

.console-row > .console-card {
    margin-bottom: 0;
    display: flex;
    flex-direction: column;
}

/* 余额卡 / 流量包余额卡 —— 内容少, balance-hero 垂直撑满并居中 */
.card-balance .balance-hero,
.card-pack-balance .balance-hero {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

/* 流量包余额 hero 用青→紫渐变(和卡片顶部装饰条一致) */
.card-pack-balance .balance-big {
    background: linear-gradient(135deg, #06b6d4 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    filter: drop-shadow(0 2px 20px rgba(139, 92, 246, 0.3));
}

.card-pack-balance .balance-hero {
    background: radial-gradient(ellipse at center, rgba(6, 182, 212, 0.08) 0%, transparent 60%);
}

/* 充值卡 / 购买流量包卡: 输入框 + 按钮都撑满列宽, 垂直堆叠 */
.card-recharge .input-row,
.card-pack-purchase .input-row {
    flex-direction: column;
    gap: 12px;
    align-items: stretch;
}

/* 带 ¥ 前缀的输入框容器: 整块作为 "边框", 内部 span + input 共享 */
.currency-input {
    display: flex;
    align-items: stretch;
    width: 100%;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    transition: border-color 0.2s;
    overflow: hidden;
}

.currency-input:focus-within {
    border-color: var(--accent-purple);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.15);
}

.currency-prefix,
.currency-suffix {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 16px;
    font-size: 22px;
    font-weight: 600;
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.03);
    user-select: none;
}

.currency-prefix { border-right: 1px solid var(--border-color); }
.currency-suffix { border-left: 1px solid var(--border-color); }

/* 重置 input 默认样式, 让它在 currency-input 容器里无缝 */
.currency-input input[type=number] {
    flex: 1;
    background: transparent !important;
    border: none !important;
    padding: 14px 18px;
    font-size: 22px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 0.5px;
    font-variant-numeric: tabular-nums;
    outline: none;
    text-align: center;
}

.currency-input input[type=number]:focus {
    border: none !important;
    outline: none !important;
}

.card-recharge .input-row .btn-primary,
.card-pack-purchase .input-row .btn-primary {
    width: 100%;
    padding: 14px 20px;
    font-size: 15px;
    font-weight: 600;
}

/* 购买流量包的按钮用紫色渐变, 和卡片装饰条呼应 */
.card-pack-purchase .input-row .btn-primary {
    background: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%);
}

/* dashboard 流量条拆分样式 (套餐 | 流量包) + legend */
.dash-traffic-split {
    display: flex;
    gap: 3px;
    width: 100%;
    height: 10px;
}

.dash-traffic-seg {
    height: 100%;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 5px;
    overflow: hidden;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.3);
}

.dash-traffic-seg-fill {
    height: 100%;
    border-radius: 5px;
    transition: width 0.5s ease;
}

.dash-traffic-seg-fill.plan {
    background: linear-gradient(90deg, #10b981 0%, #06b6d4 50%, #3b82f6 100%);
    box-shadow: 0 0 6px rgba(16, 185, 129, 0.35);
}

.dash-traffic-seg-fill.pack {
    background: linear-gradient(90deg, #8b5cf6 0%, #ec4899 100%);
    box-shadow: 0 0 6px rgba(139, 92, 246, 0.35);
}

/* ⚠️ info-item span:last-child 全局规则会把这里所有 span 强制变 20px bold,
   所以下面的 font-size/weight/display 必须 !important, 否则 legend 里数字巨大。*/
.dash-traffic-legend {
    display: flex !important;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 8px;
    font-size: 11px !important;
    font-weight: 400 !important;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif !important;
    color: var(--text-muted) !important;
    line-height: 1.4 !important;
}

.dash-traffic-legend .seg,
.dash-traffic-legend .dot,
.dash-traffic-legend .num {
    font-size: 11px !important;
    font-weight: 400 !important;
    color: var(--text-secondary) !important;
    display: inline-flex !important;
    line-height: 1.4 !important;
}

.dash-traffic-legend .seg {
    align-items: center;
    gap: 6px;
}

.dash-traffic-legend .dot {
    width: 8px !important;
    height: 8px !important;
    border-radius: 50%;
    flex-shrink: 0;
    display: inline-block !important;
}

.dash-traffic-legend .dot.plan {
    background: linear-gradient(135deg, #10b981, #3b82f6);
}

.dash-traffic-legend .dot.pack {
    background: linear-gradient(135deg, #8b5cf6, #ec4899);
}

.dash-traffic-legend .num {
    font-variant-numeric: tabular-nums;
}

/* 二维码节点切换标签按钮 */
.qr-tab {
    padding: 6px 14px;
    font-size: 12px;
    font-weight: 500;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.15s;
    font-family: inherit;
}

.qr-tab:hover {
    border-color: var(--accent-purple);
    color: var(--text-primary);
}

.qr-tab.active {
    background: var(--gradient-2);
    border-color: transparent;
    color: #fff;
    box-shadow: 0 2px 8px rgba(139, 92, 246, 0.35);
}

/* ====================================================================
   管理员用户操作模态框 (⚙️ 按钮弹出)
   ==================================================================== */
.user-modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.65);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    padding: 20px;
    animation: um-fade 0.15s ease-out;
}

@keyframes um-fade {
    from { opacity: 0; }
    to { opacity: 1; }
}

.user-modal-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 24px;
    width: 100%;
    max-width: 480px;
    box-shadow: var(--shadow-lg);
    max-height: 90vh;
    overflow-y: auto;
}

.user-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
}

.user-modal-header h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.user-modal-close {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
    padding: 0 4px;
    transition: color 0.15s;
}
.user-modal-close:hover { color: var(--text-primary); }

.user-modal-meta {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    flex-wrap: wrap;
    gap: 8px 16px;
    font-variant-numeric: tabular-nums;
}

.user-modal-tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0;
}

.um-tab {
    padding: 8px 16px;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
    margin-bottom: -1px;
}

.um-tab:hover { color: var(--text-primary); }

.um-tab.active {
    color: var(--accent-purple);
    border-bottom-color: var(--accent-purple);
}

.um-panel {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.um-label {
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 500;
    margin-top: 4px;
}

.um-input {
    padding: 10px 14px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    outline: none;
    transition: border-color 0.15s;
    width: 100%;
    box-sizing: border-box;
}

.um-input:focus {
    border-color: var(--accent-purple);
}

.um-hint {
    font-size: 11px;
    color: var(--text-muted);
    line-height: 1.5;
    margin: 4px 0 0;
}

.um-submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 16px;
    margin-top: 8px;
    background: var(--gradient-2);
    border: none;
    border-radius: 8px;
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.15s, box-shadow 0.15s;
}

.um-submit:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(139, 92, 246, 0.35);
}

.um-submit:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.um-error {
    margin-top: 12px;
    padding: 10px 14px;
    background: rgba(239, 68, 68, 0.08);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: 8px;
    color: #fca5a5;
    font-size: 13px;
}

/* 流量包余额大号下方的 "of X GB total" 小字 */
.balance-sub-note {
    margin-top: 8px;
    font-size: 12px;
    color: var(--text-muted);
    letter-spacing: 0.3px;
    position: relative;
    z-index: 1;
}

/* Plan 使用条: 两段式 (plan | pack) */
.usage-bar-split {
    display: flex;
    gap: 3px;
    width: 100%;
    height: 12px;
    margin-bottom: 10px;
    background: transparent;
}

.usage-seg {
    height: 100%;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 6px;
    overflow: hidden;
    position: relative;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.3);
}

.usage-seg-fill {
    height: 100%;
    transition: width 0.5s ease;
    border-radius: 6px;
}

.seg-plan-fill {
    background: linear-gradient(90deg, #10b981 0%, #06b6d4 50%, #3b82f6 100%);
    box-shadow: 0 0 8px rgba(16, 185, 129, 0.4);
}

.seg-pack-fill {
    background: linear-gradient(90deg, #8b5cf6 0%, #ec4899 100%);
    box-shadow: 0 0 8px rgba(139, 92, 246, 0.4);
}

/* legend (Plan / Pack 色点 + 文字) */
.usage-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    font-size: 12px;
    color: var(--text-secondary);
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.legend-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.legend-plan .legend-dot {
    background: linear-gradient(135deg, #10b981, #3b82f6);
    box-shadow: 0 0 6px rgba(16, 185, 129, 0.5);
}

.legend-pack .legend-dot {
    background: linear-gradient(135deg, #8b5cf6, #ec4899);
    box-shadow: 0 0 6px rgba(139, 92, 246, 0.5);
}

@media (max-width: 760px) {
    .console-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
    .console-row > .console-card {
        margin-bottom: 24px;
    }
}

.subscribe-console .console-card .card-header h2 {
    font-size: 17px;
    letter-spacing: 0.3px;
}

/* ---- 余额 Hero ---- */
.balance-hero {
    position: relative;
    padding: 20px 0 30px;
    text-align: center;
    overflow: hidden;
    border-radius: 12px;
    background:
        radial-gradient(ellipse at center, rgba(16, 185, 129, 0.08) 0%, transparent 60%);
}

.balance-hero .balance-big {
    font-size: 64px;
    font-weight: 900;
    letter-spacing: -2px;
    background: linear-gradient(135deg, #10b981 0%, #06b6d4 50%, #3b82f6 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    padding: 10px 0;
    position: relative;
    z-index: 1;
    filter: drop-shadow(0 2px 20px rgba(16, 185, 129, 0.3));
}

.balance-hero .balance-big .currency {
    font-size: 28px;
    color: var(--text-secondary);
    -webkit-text-fill-color: var(--text-secondary);
    vertical-align: super;
    margin-right: 4px;
    filter: none;
}

.balance-hero .balance-big .currency-label {
    font-size: 13px;
    color: var(--text-muted);
    -webkit-text-fill-color: var(--text-muted);
    font-weight: 500;
    letter-spacing: 2px;
    margin-left: 12px;
    filter: none;
}

/* 余额卡片的 shimmer 扫光(淡) */
.balance-shimmer {
    position: absolute;
    top: 0;
    left: -100%;
    width: 40%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.05) 50%,
        transparent 100%
    );
    animation: shimmer-sweep 4s ease-in-out infinite;
    pointer-events: none;
}

@keyframes shimmer-sweep {
    0%, 100% { left: -40%; opacity: 0; }
    30%      { opacity: 1; }
    50%      { left: 100%; opacity: 0.6; }
}

/* ---- 富按钮 quick picks (主数字 + 副标) ---- */
.pick-btn-rich {
    display: inline-flex !important;
    flex-direction: column;
    align-items: center;
    padding: 8px 14px !important;
    line-height: 1.2;
    min-width: 70px;
}

.pick-btn-rich .pick-main {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    transition: color 0.15s;
}

.pick-btn-rich .pick-sub {
    font-size: 10px;
    color: var(--text-muted);
    margin-top: 2px;
    letter-spacing: 0.3px;
}

.pick-btn-rich:hover .pick-main { color: var(--accent-purple); }

/* ---- Plan 激活 3 档卡 ---- */
.plan-grid .plan-card {
    transition: transform 0.25s, box-shadow 0.25s;
}

.plan-grid .plan-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.plan-grid .plan-card-featured {
    box-shadow: 0 4px 24px rgba(139, 92, 246, 0.25);
}

.plan-grid .plan-card-featured .plan-badge {
    background: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
    letter-spacing: 1px;
}

.plan-grid .plan-card-featured .plan-card-name {
    background: var(--gradient-2);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-weight: 700;
}

/* ---- 当前套餐状态更立体 ---- */
.current-plan .plan-badge-active {
    background: linear-gradient(135deg, #10b981 0%, #06b6d4 100%);
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.35);
}

.usage-bar-track {
    height: 12px;
    background: rgba(255, 255, 255, 0.04);
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.3);
}

.usage-bar-fill {
    background: linear-gradient(90deg, #10b981 0%, #06b6d4 50%, #3b82f6 100%);
    box-shadow: 0 0 8px rgba(16, 185, 129, 0.4);
}

/* ---- 流量包余额胶囊加强 ---- */
.pack-balance {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.1), rgba(139, 92, 246, 0.1));
    border-color: rgba(6, 182, 212, 0.3);
}

.pack-balance strong {
    background: var(--gradient-3);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-size: 24px;
}

/* ---- 总价显示加强 ---- */
.total-display {
    padding: 8px 14px;
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.25);
    border-radius: 8px;
    font-weight: 600;
    color: var(--text-primary) !important;
    font-size: 16px !important;
}

.total-display #pack-total {
    color: var(--accent-purple);
    font-weight: 700;
}

/* ---- 账单流水改 list 式 ---- */
.tx-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.tx-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 14px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.04);
    border-radius: 10px;
    transition: background 0.2s, border-color 0.2s;
}

.tx-item:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.08);
}

.tx-icon {
    flex: 0 0 36px;
    height: 36px;
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
}

.tx-icon i {
    width: 18px;
    height: 18px;
    stroke: var(--text-secondary);
}

/* 类型色: deposit 绿 / plan_fee 紫 / refund 蓝 / pack 青 / adjust 橙 */
.tx-type-deposit .tx-icon {
    background: rgba(16, 185, 129, 0.12);
}
.tx-type-deposit .tx-icon i { stroke: var(--accent-green); }

.tx-type-plan_fee .tx-icon {
    background: rgba(139, 92, 246, 0.12);
}
.tx-type-plan_fee .tx-icon i { stroke: var(--accent-purple); }

.tx-type-plan_refund .tx-icon,
.tx-type-plan_refund_reversal .tx-icon {
    background: rgba(59, 130, 246, 0.12);
}
.tx-type-plan_refund .tx-icon i,
.tx-type-plan_refund_reversal .tx-icon i { stroke: var(--accent-blue); }

.tx-type-pack_purchase .tx-icon {
    background: rgba(6, 182, 212, 0.12);
}
.tx-type-pack_purchase .tx-icon i { stroke: var(--accent-cyan); }

.tx-type-manual_adjust .tx-icon {
    background: rgba(245, 158, 11, 0.12);
}
.tx-type-manual_adjust .tx-icon i { stroke: #f59e0b; }

.tx-body {
    flex: 1;
    min-width: 0;
}

.tx-description {
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.tx-time {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 2px;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.tx-amounts {
    flex: 0 0 auto;
    text-align: right;
}

.tx-delta {
    font-size: 16px;
    font-weight: 700;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.tx-delta.pos { color: var(--accent-green); }
.tx-delta.neg { color: var(--accent-red); }

.tx-balance {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 2px;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

@media (max-width: 600px) {
    .balance-hero .balance-big { font-size: 44px; }
    .tx-description { font-size: 13px; }
}

/* Subscribe console 作用域内所有按钮统一 flex 对齐(icon + 文字同一基线) */
.subscribe-console .btn-primary,
.subscribe-console .btn-secondary,
.subscribe-console .btn-danger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

/* 按钮内部 svg 尺寸对齐文字 */
.subscribe-console .btn-primary svg,
.subscribe-console .btn-secondary svg,
.subscribe-console .btn-danger svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

/* 隐藏 number input 的 spinner 上下箭头(冗余+难看, 改用 quick-pick 和键盘输入) */
.subscribe-console input[type=number]::-webkit-inner-spin-button,
.subscribe-console input[type=number]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}
.subscribe-console input[type=number] {
    -moz-appearance: textfield;
    appearance: textfield;
}

/* ====================================================================
   MOBILE RESPONSIVE LAYER — 统一断点, 附加在样式表末尾所以可覆盖前面规则
   断点: 1024 (tablet) / 760 (phablet/wide phone) / 480 (phone) / 360 (narrow)
   ==================================================================== */

/* ---- Phase 1: 全局基础 ---- */

/* iOS 安全区 + 窄屏 container 内边距收窄 */
.container {
    padding-left: max(24px, env(safe-area-inset-left));
    padding-right: max(24px, env(safe-area-inset-right));
    padding-top: max(24px, env(safe-area-inset-top));
    padding-bottom: max(24px, env(safe-area-inset-bottom));
}

@media (max-width: 760px) {
    .container { padding: 16px; }
}
@media (max-width: 480px) {
    .container { padding: 12px; }
}

/* iOS 防止 input focus 自动放大 (font-size >= 16px) */
@media (max-width: 760px) {
    input, select, textarea, button { font-size: 16px; }
}

/* 触控目标最小 44x44 */
@media (max-width: 760px) {
    button, .btn-primary, .btn-secondary, .btn-danger, .pick-btn, a.nav-cta {
        min-height: 44px;
    }
}

/* 全局大标题响应式字号梯度 */
@media (max-width: 760px) {
    h1 { font-size: clamp(22px, 6vw, 32px); }
    h2 { font-size: clamp(18px, 5vw, 24px); }
    h3 { font-size: clamp(16px, 4.5vw, 20px); }
}

/* ---- Phase 2: /dashboard 用户面板 ---- */

/* 左右两栏在 <900 堆叠 (user_index 的 .two-col, index 的 .admin-two-col) */
@media (max-width: 900px) {
    .two-col, .admin-two-col {
        grid-template-columns: 1fr !important;
    }
}

/* 右栏 info-panel (CPU/Mem/Balance/Plan/Expires/Traffic) 原是 2-col grid, <480 降 1 列 */
@media (max-width: 480px) {
    .info-panel {
        grid-template-columns: 1fr !important;
    }
}

/* Setup guide 顶部的节点选择列表. 跟步骤 ol 视觉一致但用项目符号强调而非序号. */
.node-guide {
    list-style: none;
    padding-left: 0;
    margin: 8px 0 20px;
}
.node-guide li {
    padding: 8px 12px;
    margin-bottom: 6px;
    background: rgba(34, 211, 238, 0.05);
    border-left: 3px solid var(--accent-cyan);
    border-radius: 4px;
    line-height: 1.6;
}
.node-guide li strong {
    color: var(--accent-cyan);
    font-weight: 600;
}

/* Setup guide / Usage guidelines 面板 <code> 块强制换行, 防横向溢出 */
.panel-body code,
.panel-body pre {
    word-break: break-all;
    overflow-wrap: anywhere;
    max-width: 100%;
}
@media (max-width: 760px) {
    .panel-body { padding: 0 14px 14px; }
    .panel-body ol, .panel-body ul { padding-left: 18px; }
    .panel-header { padding: 14px 16px; }
}

/* 操作面板 / 下载按钮 移动端撑满 */
@media (max-width: 760px) {
    .control-panel, .panel-body {
        font-size: 14px;
    }
    .control-group button,
    .toggle-camera-btn {
        width: 100% !important;
    }
}

/* ---- Phase 3: /dashboard/subscribe ---- */

@media (max-width: 760px) {
    .subscribe-console { padding: 0 12px; margin: 20px auto; }
    .subscribe-console .console-title { font-size: 26px; }
    .subscribe-console .console-sub { font-size: 13px; margin-bottom: 20px; }
    .subscribe-console .console-card { padding: 20px 16px; }
    .balance-hero .balance-big { font-size: 48px; letter-spacing: -1px; }
    .balance-hero .balance-big .currency { font-size: 22px; }
    .balance-hero .balance-big .currency-label { font-size: 11px; letter-spacing: 1.5px; }
}

@media (max-width: 480px) {
    .balance-hero .balance-big { font-size: 36px; }
    .subscribe-console .console-title { font-size: 22px; }

    /* 快捷金额按钮 2 排 x 3 */
    .quick-picks .pick-btn-rich {
        flex: 1 1 calc(33.333% - 8px);
        min-width: 0;
    }

    /* 充值/购买输入框 ¥ 和 GB 字号缩小 */
    .currency-prefix, .currency-suffix { padding: 0 12px; font-size: 18px; }
    .currency-input input[type=number] { font-size: 18px; padding: 12px 14px; }
    .card-recharge .input-row .btn-primary,
    .card-pack-purchase .input-row .btn-primary {
        padding: 12px 16px; font-size: 14px;
    }
}

/* plan-grid: 3 档套餐在中屏变 2 列, 小屏 1 列 */
@media (max-width: 900px) {
    .plan-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
    .plan-grid { grid-template-columns: 1fr; gap: 12px; }
}

/* plan-actions (切换/取消) 小屏纵向堆叠全宽 */
@media (max-width: 480px) {
    .plan-actions { flex-direction: column; }
    .plan-actions button { width: 100%; }
}

/* 账单流水 <480 垂直化 */
@media (max-width: 480px) {
    .tx-item {
        flex-wrap: wrap;
        gap: 8px 12px;
    }
    .tx-body { flex: 1 1 calc(100% - 48px); }
    .tx-amounts {
        flex: 1 1 100%;
        text-align: left;
        padding-left: 48px;
        margin-top: -4px;
    }
    .tx-delta { font-size: 14px; }
    .tx-description { font-size: 13px; white-space: normal; }
}

/* ---- Phase 4: / (home) + 政策页 ---- */

/* Hero 标题字号分级 */
@media (max-width: 760px) {
    .hero { padding: 40px 16px 60px; }
    .hero h1 { font-size: clamp(28px, 7vw, 44px); line-height: 1.2; }
    .hero-sub { font-size: clamp(14px, 3.5vw, 18px); }
    .hero .cta-row { flex-direction: column; gap: 10px; }
    .hero .cta-row a { width: 100%; text-align: center; box-sizing: border-box; }
}

/* Services / Pricing / Footer grids */
@media (max-width: 900px) {
    .services-grid, .pricing-grid {
        grid-template-columns: 1fr !important;
        gap: 16px;
    }
}
@media (max-width: 760px) {
    .site-footer {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 20px;
    }
}
@media (max-width: 480px) {
    .site-footer {
        grid-template-columns: 1fr !important;
    }
}

/* 政策页窄屏收窄 */
@media (max-width: 760px) {
    .legal-page { padding: 20px 12px; line-height: 1.65; }
    .legal-page h1 { font-size: 24px; }
    .legal-page h2 { font-size: 18px; margin-top: 24px; }
    .legal-page p, .legal-page li { font-size: 14px; }
}

/* ---- Phase 5: 公开 nav + login/register 表单 ---- */

/* Nav 窄屏紧凑: 允许换行, 间距缩小 */
@media (max-width: 760px) {
    .site-nav {
        flex-wrap: wrap;
        padding: 12px 16px;
        gap: 8px 12px;
    }
    .site-nav .brand span { font-size: 16px; }
    .site-nav .nav-links {
        gap: 6px 14px;
        font-size: 14px;
        flex-wrap: wrap;
    }
    .site-nav .nav-cta { padding: 6px 14px; }
    /* 窄屏隐藏锚点链接 (Services/Pricing 在首页用锚点没意义) */
    .site-nav .nav-links a[href*="#"] { display: none; }
}

@media (max-width: 480px) {
    .site-nav .lang-switch { font-size: 12px; }
}

/* 登录 / 注册 / 其他独立表单页 窄屏 */
@media (max-width: 480px) {
    .login-container, .register-container {
        padding: 20px 12px;
    }
    .login-box, .register-box, .blocked-box {
        padding: 24px 18px !important;
        border-radius: 12px;
    }
    .login-box h1, .register-box h1 { font-size: 22px; }
    .form-group input { font-size: 16px; }
}

/* ---- Phase 6: Admin 表格 ---- */

/* 防止 grid / flex item 的 min-content 把轨道撑大超出视口.
   admin-two-col / two-col 的子列, 以及 control-panel 自身都要 min-width: 0,
   否则宽表格会让整行超出视口而 header 不超出, 出现 "头窄下宽" 错位. */
.admin-two-col > *,
.two-col > *,
.control-panel {
    min-width: 0;
}

@media (max-width: 760px) {
    /* 用户管理表格内部已有 #usersTable overflow-x:auto 包裹, 这里只需调字号 */
    .control-panel table {
        font-size: 12px;
    }
    .control-panel table th,
    .control-panel table td {
        padding: 6px 8px;
        white-space: nowrap;
    }
    /* 邀请码等表单行输入/按钮撑满, 方便触屏 */
    .control-group input:not([type=checkbox]):not([type=radio]),
    .control-group select,
    .control-group button {
        width: 100%;
        box-sizing: border-box;
    }
}

/* ---- 通用收尾: 2-col console-row 的断点从 760 保留 ---- */
/* (已在前面定义, 这里不重复) */

/* 流量条文本在小屏不要换行 / 字号收窄 */
@media (max-width: 480px) {
    .quota-display, .traffic-display { font-size: 11px; }
    .usage-bar-track { height: 8px; }
}

/* dashboard header 右侧 user-info + 登出按钮 窄屏收紧 */
@media (max-width: 480px) {
    .header-info { font-size: 12px; gap: 6px !important; flex-wrap: wrap; }
    .header-lang { font-size: 11px; }
    .logout-btn { padding: 6px 10px !important; }
}