/**
 * 算立方 TWINCUBE - 平台基础样式
 * 3D智能装箱SaaS平台
 */

/* ==================== CSS变量系统 ==================== */
:root {
    /* 主色调 */
    --primary-color: #1890ff;
    --primary-hover: #40a9ff;
    --primary-active: #096dd9;
    --primary-light: #e6f7ff;

    /* 辅助色 */
    --success-color: #52c41a;
    --warning-color: #faad14;
    --error-color: #ff4d4f;
    --info-color: #1890ff;

    /* 中性色 */
    --text-primary: #262626;
    --text-secondary: #595959;
    --text-tertiary: #8c8c8c;
    --text-placeholder: #bfbfbf;
    --border-color: #d9d9d9;
    --border-light: #e8e8e8;
    --divider-color: #f0f0f0;

    /* 背景色 */
    --bg-base: #f5f7fa;
    --bg-light: #fafafa;
    --bg-white: #ffffff;
    --bg-dark: #001529;

    /* 字体 */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC',
        'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue',
        Helvetica, Arial, sans-serif;
    --font-family-code: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;

    /* 字号 */
    --font-size-xs: 12px;
    --font-size-sm: 13px;
    --font-size-base: 14px;
    --font-size-lg: 16px;
    --font-size-xl: 18px;
    --font-size-xxl: 20px;
    --font-size-title: 24px;
    --font-size-heading: 30px;

    /* 间距 */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 48px;

    /* 圆角 */
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --radius-xl: 12px;
    --radius-round: 50%;

    /* 阴影 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.03), 0 1px 6px -1px rgba(0, 0, 0, 0.02), 0 2px 4px 0 rgba(0, 0, 0, 0.02);
    --shadow-md: 0 3px 6px -4px rgba(0, 0, 0, 0.12), 0 6px 16px 0 rgba(0, 0, 0, 0.08), 0 9px 28px 8px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 6px 16px -8px rgba(0, 0, 0, 0.08), 0 9px 28px 0 rgba(0, 0, 0, 0.05), 0 12px 48px 16px rgba(0, 0, 0, 0.03);

    /* 过渡 */
    --transition-fast: 0.1s ease;
    --transition-base: 0.2s ease;
    --transition-slow: 0.3s ease;

    /* 导航栏高度 */
    --navbar-height: 64px;
}

/* ==================== 基础重置 ==================== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    color: var(--text-primary);
    background-color: var(--bg-base);
    line-height: 1.5715;
    min-height: 100vh;
}

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

a:hover {
    color: var(--primary-hover);
}

ul,
ol {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input,
textarea,
select {
    font-family: inherit;
    font-size: inherit;
}

/* ==================== 导航栏 ==================== */
.platform-navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--navbar-height);
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-lg);
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: inherit;
    text-decoration: none;
}

.navbar-brand:hover {
    color: inherit;
}

.navbar-logo {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

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

.navbar-title {
    display: flex;
    flex-direction: column;
}

.navbar-title-main {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.2;
}

.navbar-title-sub {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    line-height: 1.2;
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.navbar-menu-item {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.navbar-menu-item:hover {
    color: var(--primary-color);
    background: var(--primary-light);
}

.navbar-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.navbar-icon-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-round);
    color: var(--text-secondary);
    transition: all var(--transition-base);
}

.navbar-icon-btn:hover {
    background: var(--bg-light);
    color: var(--primary-color);
}

.navbar-icon-btn:focus-visible {
    outline: 2px solid rgba(24, 144, 255, 0.35);
    outline-offset: 2px;
}

.navbar-icon-btn svg {
    width: 20px;
    height: 20px;
}

.navbar-notification {
    position: relative;
}

.navbar-notification-panel {
    position: absolute;
    top: calc(100% + 10px);
    right: -8px;
    width: 300px;
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.14);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-6px);
    transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
    z-index: 1200;
}

.navbar-notification-panel::before {
    content: '';
    position: absolute;
    top: -6px;
    right: 20px;
    width: 12px;
    height: 12px;
    background: var(--bg-white);
    border-top: 1px solid var(--border-light);
    border-left: 1px solid var(--border-light);
    transform: rotate(45deg);
}

.navbar-notification-panel.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
}

.navbar-notification-header {
    position: relative;
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-light);
    color: var(--text-primary);
    font-size: var(--font-size-base);
    font-weight: 600;
}

.navbar-notification-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 24px 20px 26px;
    text-align: center;
}

.navbar-notification-empty-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
    border-radius: var(--radius-round);
    background: var(--primary-light);
    color: var(--primary-color);
}

.navbar-notification-empty-icon svg {
    width: 22px;
    height: 22px;
}

.navbar-notification-empty-title {
    color: var(--text-primary);
    font-size: var(--font-size-base);
    font-weight: 600;
}

.navbar-notification-empty-copy {
    max-width: 230px;
    margin-top: 6px;
    color: var(--text-tertiary);
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

.navbar-divider {
    width: 1px;
    height: 24px;
    background: var(--border-light);
}

.language-selector {
    position: relative;
}

.lang-switcher {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-white);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-base);
}

.lang-switcher:hover,
.lang-switcher.is-open {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.lang-switcher svg {
    width: 16px;
    height: 16px;
}

.lang-switcher-chevron {
    width: 12px !important;
    height: 12px !important;
    transition: transform var(--transition-base);
}

.lang-switcher.is-open .lang-switcher-chevron {
    transform: rotate(180deg);
}

.language-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 156px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 6px;
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.14);
    z-index: 1200;
}

.language-menu[hidden] {
    display: none;
}

.language-option {
    width: 100%;
    min-height: 36px;
    display: flex;
    align-items: center;
    padding: 8px 10px;
    border: 0;
    border-radius: 6px;
    background: transparent;
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    line-height: 1.35;
    text-align: left;
    cursor: pointer;
    transition: background-color var(--transition-base), color var(--transition-base);
}

.language-option:hover,
.language-option:focus-visible {
    outline: none;
    background: #f1f5f9;
    color: var(--text-primary);
}

.language-option.is-active,
.language-option.is-active:hover,
.language-option.is-active:focus-visible {
    background: #f1f5f9;
    color: var(--primary-color);
    font-weight: 600;
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-round);
    background: linear-gradient(135deg, var(--primary-color), #36cfc9);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: transform var(--transition-base);
}

.user-avatar:hover {
    transform: scale(1.05);
}

.user-avatar.is-guest {
    background: linear-gradient(135deg, #64748b, #94a3b8);
}

/* ==================== 用户头像下拉菜单 ==================== */
.user-avatar-dropdown {
    position: relative;
}

.user-dropdown-panel {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    width: 260px;
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px) scale(0.98);
    transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
    z-index: 1100;
}

.user-dropdown-panel.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

/* 小三角指引箭头 */
.user-dropdown-panel::before {
    content: '';
    position: absolute;
    top: -6px;
    right: 14px;
    width: 12px;
    height: 12px;
    background: var(--bg-white);
    border-top: 1px solid var(--border-light);
    border-left: 1px solid var(--border-light);
    transform: rotate(45deg);
    z-index: 1;
}

/* 第一层：身份铭牌 */
.user-dropdown-identity {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 16px 14px;
}

.dropdown-avatar {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-round);
    background: linear-gradient(135deg, var(--primary-color), #36cfc9);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 600;
    flex-shrink: 0;
    letter-spacing: 0.5px;
}

.dropdown-avatar.is-guest {
    background: linear-gradient(135deg, #64748b, #94a3b8);
}

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

.dropdown-username {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.3;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.dropdown-company {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    line-height: 1.3;
    margin-top: 1px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.dropdown-company.guest-copy {
    white-space: normal;
    overflow: visible;
    text-overflow: clip;
    max-width: 174px;
}

.dropdown-badge {
    display: none;  /* JS 会设为 inline-flex */
    align-items: center;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 11px;
    font-weight: 500;
    margin-top: 6px;
    line-height: 1.4;
}

.dropdown-badge.badge-free {
    background: #f5f5f5;
    color: var(--text-tertiary);
}

.dropdown-badge.badge-trial {
    background: #e6f7ff;
    color: #1890ff;
}

.dropdown-badge.badge-active {
    background: #e6f7ff;
    color: #1890ff;
}

.dropdown-badge.badge-enterprise {
    background: #2f3542;
    color: white;
}

.dropdown-badge.badge-expired {
    background: #fff1f0;
    color: #ff4d4f;
}

/* 分隔线 */
.user-dropdown-divider {
    height: 1px;
    background: var(--divider-color);
    margin: 0 12px;
}

/* 导航项 */
.user-dropdown-nav {
    padding: 6px 8px;
}

.user-dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 10px;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.user-dropdown-item:hover {
    background: var(--primary-light);
    color: var(--primary-color);
}

.user-dropdown-item svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    stroke: currentColor;
}

.user-dropdown-item.logout:hover {
    background: #fff1f0;
    color: var(--error-color);
}

.user-dropdown-nav.guest-actions {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 10px 12px 12px;
}

.user-dropdown-item.guest-primary,
.user-dropdown-item.guest-secondary {
    min-height: 44px;
    justify-content: center;
    font-weight: 600;
}

.user-dropdown-item.guest-primary {
    background: var(--primary-color);
    color: #fff;
}

.user-dropdown-item.guest-primary:hover {
    background: var(--primary-hover);
    color: #fff;
}

.user-dropdown-item.guest-secondary {
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.user-dropdown-item.guest-secondary:hover {
    border-color: var(--primary-color);
    background: var(--primary-light);
    color: var(--primary-color);
}

.account-modal-backdrop[hidden] {
    display: none !important;
}

.account-modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.32);
    backdrop-filter: blur(6px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    z-index: 1100;
    opacity: 0;
    transition: opacity 0.18s ease;
}

.account-modal-backdrop.show {
    opacity: 1;
}

.account-modal {
    width: min(520px, 100%);
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    box-shadow: 0 24px 48px rgba(15, 23, 42, 0.18);
    border: 1px solid rgba(214, 234, 255, 0.8);
    overflow: hidden;
    transform: translateY(10px);
    transition: transform 0.18s ease;
}

.account-modal-backdrop.show .account-modal {
    transform: translateY(0);
}

.account-modal-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 24px 16px;
    border-bottom: 1px solid var(--divider-color);
}

.account-modal-header h3 {
    margin: 0;
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.account-modal-header p {
    margin: 6px 0 0;
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
}

.account-modal-close {
    width: 32px;
    height: 32px;
    border-radius: 10px;
    border: none;
    background: #f5f8ff;
    color: var(--text-tertiary);
    font-size: 22px;
    line-height: 1;
    cursor: pointer;
    transition: all var(--transition-base);
}

.account-modal-close:hover {
    color: var(--text-primary);
    background: #ebf3ff;
}

.account-modal-body {
    padding: 20px 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.account-modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding: 16px 24px 24px;
    border-top: 1px solid var(--divider-color);
}

.account-confirm-modal {
    width: min(460px, 100%);
}

.account-confirm-header {
    align-items: center;
}

.account-confirm-badge {
    width: 48px;
    height: 48px;
    border-radius: 16px;
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(24, 144, 255, 0.12), rgba(54, 207, 201, 0.14));
    color: var(--primary-color);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.account-confirm-badge svg {
    width: 22px;
    height: 22px;
}

.account-confirm-copy {
    flex: 1;
    min-width: 0;
}

.account-confirm-note {
    display: flex;
    align-items: center;
    gap: 10px;
    border-radius: 14px;
    padding: 12px 14px;
    background: linear-gradient(180deg, #f7fbff 0%, #f3f8ff 100%);
    border: 1px solid rgba(214, 234, 255, 0.9);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

.account-confirm-note-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
    background: linear-gradient(135deg, #1890ff, #36cfc9);
    box-shadow: 0 0 0 4px rgba(24, 144, 255, 0.08);
}

.platform-notice-overlay,
.platform-confirm-overlay {
    z-index: 100200;
}

.platform-notice-dialog,
.platform-confirm-dialog {
    width: min(460px, 100%);
}

.platform-notice-icon,
.platform-confirm-icon {
    color: var(--warning-color);
    background: linear-gradient(135deg, rgba(250, 173, 20, 0.16), rgba(250, 140, 22, 0.08));
    box-shadow: inset 0 0 0 1px rgba(250, 173, 20, 0.12);
}

.platform-notice-icon svg,
.platform-confirm-icon svg {
    width: 24px;
    height: 24px;
}

.platform-notice-hint,
.platform-confirm-hint {
    align-items: center;
}

.platform-notice-hint span:last-child,
.platform-confirm-hint span:last-child {
    flex: 1;
}

/* ==================== 主内容区 ==================== */
.platform-main {
    padding-top: calc(var(--navbar-height) + var(--spacing-lg));
    min-height: 100vh;
}

.platform-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ==================== 通用按钮 ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-base);
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    cursor: pointer;
    border: 1px solid transparent;
    line-height: 1.5;
}

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

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

.btn-primary:active {
    background: var(--primary-active);
}

.btn-outline {
    background: var(--bg-white);
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-light);
}

.btn-outline-secondary {
    background: var(--bg-white);
    color: var(--text-secondary);
    border-color: var(--border-color);
}

.btn-outline-secondary:hover {
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-text {
    background: transparent;
    color: var(--text-secondary);
    padding: var(--spacing-xs) var(--spacing-sm);
}

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

.btn-icon {
    width: 32px;
    height: 32px;
    padding: 0;
    border-radius: var(--radius-md);
}

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

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-lg);
    border-radius: var(--radius-lg);
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-sm);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn.is-loading {
    opacity: 0.7;
    cursor: wait;
}

/* ==================== 通用输入框 ==================== */
.form-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-base);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-white);
    color: var(--text-primary);
    transition: all var(--transition-base);
    outline: none;
}

.form-input:hover {
    border-color: var(--primary-hover);
}

.form-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(24, 144, 255, 0.2);
}

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

.form-input-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-sm);
}

.form-input-with-suffix {
    position: relative;
}

.form-input-with-suffix .form-input {
    padding-right: 40px;
}

.form-input-suffix {
    position: absolute;
    right: var(--spacing-sm);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    font-size: var(--font-size-sm);
    pointer-events: none;
}

/* ==================== 通用卡片 ==================== */
.card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
}

.card-header {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
}

.card-body {
    padding: var(--spacing-lg);
}

/* ==================== 页脚 ==================== */
.platform-footer {
    padding: var(--spacing-lg) 0;
    text-align: center;
    color: var(--text-tertiary);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xxl);
}

.platform-footer p {
    margin-bottom: var(--spacing-sm);
}

.platform-footer-links {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.platform-footer a {
    color: var(--text-tertiary);
}

.platform-footer a:hover {
    color: var(--primary-color);
}

/* ==================== 法律文档页面 ==================== */
.legal-body {
    background:
        linear-gradient(180deg, rgba(230, 247, 255, 0.72) 0%, rgba(245, 247, 250, 0) 360px),
        var(--bg-base);
}

.legal-page {
    max-width: 960px;
    margin: 0 auto;
    padding: var(--spacing-xxl) 0 0;
}

.legal-lang-en {
    display: none;
}

html[lang="en"] .legal-lang-zh {
    display: none;
}

html[lang="en"] .legal-lang-en {
    display: block;
}

.legal-hero {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.legal-eyebrow {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 28px;
    padding: 0 var(--spacing-md);
    border-radius: 999px;
    background: rgba(24, 144, 255, 0.1);
    color: var(--primary-color);
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.legal-hero h1 {
    font-size: 38px;
    line-height: 1.25;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    font-weight: 700;
}

.legal-hero p {
    max-width: 720px;
    margin: 0 auto;
    color: var(--text-secondary);
    font-size: var(--font-size-lg);
    line-height: 1.8;
}

.legal-meta {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
    margin-top: var(--spacing-md);
    color: var(--text-tertiary);
    font-size: var(--font-size-sm);
}

.legal-document {
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 40px 48px;
}

.legal-section + .legal-section {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--divider-color);
}

.legal-section h2 {
    font-size: var(--font-size-xl);
    line-height: 1.45;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    font-weight: 650;
}

.legal-section p {
    color: var(--text-secondary);
    line-height: 1.9;
    margin-bottom: var(--spacing-md);
}

.legal-section p:last-child {
    margin-bottom: 0;
}

.legal-section ul {
    list-style: disc;
    padding-left: 1.4em;
    margin: 0 0 var(--spacing-md);
    color: var(--text-secondary);
}

.legal-section li {
    line-height: 1.85;
    padding-left: 0.15em;
    margin-bottom: var(--spacing-sm);
}

.legal-section strong {
    color: var(--text-primary);
    font-weight: 650;
}

.legal-section a {
    font-weight: 600;
}

/* ==================== 响应式设计 ==================== */

/* 大屏幕 > 1440px */
@media (min-width: 1441px) {
    .platform-container {
        max-width: 1400px;
    }
}

/* 桌面端 1024px - 1440px */
@media (max-width: 1440px) {
    .platform-container {
        max-width: 1100px;
    }
}

/* 平板 768px - 1024px */
@media (max-width: 1024px) {
    :root {
        --navbar-height: 56px;
    }

    .platform-container {
        max-width: 100%;
        padding: 0 var(--spacing-md);
    }

    .navbar-menu {
        display: none;
    }

    .navbar-menu-mobile-toggle {
        display: flex;
    }
}

/* 手机 < 768px */
@media (max-width: 767px) {
    .platform-navbar {
        padding: 0 var(--spacing-md);
    }

    .navbar-title-sub {
        display: none;
    }

    .navbar-divider {
        display: none;
    }

    .navbar-actions {
        gap: var(--spacing-sm);
    }

    .navbar-notification-panel {
        width: min(300px, calc(100vw - 32px));
        right: -48px;
    }

    .lang-switcher span {
        display: none;
    }

    .platform-main {
        padding-top: calc(var(--navbar-height) + var(--spacing-md));
    }

    .legal-page {
        padding-top: var(--spacing-lg);
    }

    .legal-hero {
        margin-bottom: var(--spacing-lg);
    }

    .legal-hero h1 {
        font-size: 28px;
    }

    .legal-hero p {
        font-size: var(--font-size-base);
        line-height: 1.7;
    }

    .legal-meta {
        gap: var(--spacing-sm);
        flex-direction: column;
    }

    .legal-document {
        padding: var(--spacing-lg);
        border-radius: var(--radius-md);
    }

    .legal-section + .legal-section {
        margin-top: var(--spacing-lg);
        padding-top: var(--spacing-lg);
    }

    .card-body {
        padding: var(--spacing-md);
    }
}

/* 小手机 < 375px */
@media (max-width: 374px) {
    .navbar-title-main {
        font-size: var(--font-size-lg);
    }
}