/* ============================================
   CSS变量与设计系统 - Batch Verifier 风格
   ============================================ */
:root {
    /* 颜色系统 - 深蓝科技风格 */
    --color-primary: #f5a623;
    /* 橙色/金色 - 主强调色 */
    --color-primary-light: #ffc857;
    --color-primary-dark: #e09000;
    --color-secondary: #00d4aa;
    /* 青绿色 - 辅助色 */
    --color-accent: #00b4d8;
    /* 蓝色 - 点缀色 */

    --color-success: #22c55e;
    --color-error: #ef4444;
    --color-warning: #f5a623;
    --color-info: #00b4d8;

    /* 深蓝色背景体系 */
    --bg-primary: #0a1628;
    /* 最深背景 */
    --bg-secondary: #0d1f35;
    /* 卡片背景 */
    --bg-tertiary: #132d4a;
    /* 输入框等背景 */
    --bg-card: #0f2847;
    /* 稍浅的卡片 */

    /* 文字颜色 */
    --text-primary: #ffffff;
    --text-secondary: #a0aec0;
    --text-tertiary: #64748b;
    --text-muted: #4a5568;

    /* 边框 */
    --border-color: #1e3a5f;
    --border-color-focus: #f5a623;
    --border-highlight: #f5a623;
    /* 橙色高亮边框 */

    /* 渐变 */
    --gradient-primary: linear-gradient(135deg, #f5a623 0%, #ffc857 100%);
    --gradient-secondary: linear-gradient(135deg, #00d4aa 0%, #00b4d8 100%);
    --gradient-bg: linear-gradient(180deg, #0a1628 0%, #0d1f35 50%, #0a1628 100%);
    --gradient-card: linear-gradient(180deg, #0f2847 0%, #0d1f35 100%);

    /* 阴影 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 30px rgba(245, 166, 35, 0.3);
    --shadow-glow-green: 0 0 20px rgba(0, 212, 170, 0.3);

    /* 间距 */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* 圆角 */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* 过渡 */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;

    /* 字体 */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
}

/* 亮色主题 - 浅色背景模式 */
[data-theme="light"] {
    --bg-primary: #f0f4f8;
    --bg-secondary: #ffffff;
    --bg-tertiary: #e2e8f0;
    --bg-card: #ffffff;

    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --text-tertiary: #718096;
    --text-muted: #a0aec0;

    --border-color: #e2e8f0;
    --border-highlight: #f5a623;

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

/* ============================================
   自定义滚动条样式
   ============================================ */

/* Webkit 浏览器 (Chrome, Safari, Edge) */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, #f5a623 0%, #e09000 100%);
    border-radius: 4px;
    border: 1px solid var(--bg-primary);
    transition: background 0.3s ease;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, #ffc857 0%, #f5a623 100%);
}

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

/* Firefox */
* {
    scrollbar-width: thin;
    scrollbar-color: #f5a623 var(--bg-primary);
}

/* 细滚动条 - 用于小容器 */
.thin-scrollbar::-webkit-scrollbar {
    width: 4px;
    height: 4px;
}

.thin-scrollbar::-webkit-scrollbar-thumb {
    background: rgba(245, 166, 35, 0.6);
    border-radius: 2px;
}

.thin-scrollbar::-webkit-scrollbar-thumb:hover {
    background: #f5a623;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   背景效果 - 深蓝科技风格
   ============================================ */
.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
    background: var(--bg-primary);
}

/* 低调的背景微光 */
.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.15;
    animation: float 30s infinite ease-in-out;
}

.orb-1 {
    width: 800px;
    height: 800px;
    background: #1e3a5f;
    top: -300px;
    left: -200px;
    animation-delay: 0s;
}

.orb-2 {
    width: 600px;
    height: 600px;
    background: #0f4c75;
    bottom: -200px;
    right: -150px;
    animation-delay: -10s;
}

.orb-3 {
    width: 500px;
    height: 500px;
    background: #1b4965;
    top: 40%;
    left: 60%;
    animation-delay: -20s;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }

    25% {
        transform: translate(50px, -50px) scale(1.1);
    }

    50% {
        transform: translate(-30px, 30px) scale(0.95);
    }

    75% {
        transform: translate(30px, 50px) scale(1.05);
    }
}

/* ============================================
   头部导航
   ============================================ */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg-secondary);
    transition: background var(--transition-base);
}

/* 透明导航栏 - 保持 sticky 但背景透明 */
.header.header-transparent {
    background: rgba(10, 22, 40, 0.8);
    backdrop-filter: blur(10px);
}

[data-theme="light"] .header {
    background: rgba(255, 255, 255, 0.95);
}

[data-theme="light"] .header.header-transparent {
    background: rgba(240, 244, 248, 0.9);
    backdrop-filter: blur(10px);
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 700;
    font-size: var(--font-size-xl);
    color: var(--text-primary);
    text-decoration: none;
}

.logo:hover {
    text-decoration: none;
}

.logo-icon {
    font-size: 1.5rem;
}

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

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-primary);
    background: rgba(99, 102, 241, 0.1);
}

.nav-link.active {
    color: var(--color-primary);
}

.admin-link {
    background: var(--gradient-primary);
    color: white !important;
}

.admin-link:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.theme-toggle {
    width: 44px;
    height: 44px;
    border: none;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.theme-toggle:hover {
    background: var(--border-color);
    transform: rotate(15deg);
}

.theme-toggle svg {
    width: 22px;
    height: 22px;
    color: var(--text-secondary);
}

.sun-icon {
    display: block;
}

.moon-icon {
    display: none;
}

[data-theme="dark"] .sun-icon {
    display: none;
}

[data-theme="dark"] .moon-icon {
    display: block;
}

/* 语言切换按钮 */
.lang-toggle {
    padding: 8px 16px;
    border: 1px solid var(--border-color);
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    margin-left: var(--spacing-sm);
}

.lang-toggle:hover {
    background: var(--border-color);
    color: var(--text-primary);
    border-color: var(--color-primary);
}

/* ============================================
   右上角悬浮公告弹窗
   ============================================ */
.floating-notice {
    position: fixed;
    top: 80px;
    right: 20px;
    z-index: 1000;
    width: 300px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-left: 3px solid var(--color-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    animation: slideInRight 0.4s ease-out;
    overflow: hidden;
}

@keyframes slideInRight {
    from {
        transform: translateX(120%);
        opacity: 0;
    }

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.notice-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
}

.notice-icon {
    font-size: 1.2rem;
}

.notice-title {
    flex: 1;
    font-weight: 600;
    color: var(--color-primary);
    font-size: var(--font-size-sm);
}

.notice-close {
    background: none;
    border: none;
    color: var(--text-tertiary);
    font-size: 1.5rem;
    cursor: pointer;
    line-height: 1;
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

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

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

.notice-body p {
    margin: 0 0 var(--spacing-xs) 0;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.5;
}

.notice-body p:last-child {
    margin-bottom: 0;
}

.floating-notice.hidden {
    display: none;
}

/* 亮色主题悬浮公告样式 */
[data-theme="light"] .floating-notice {
    background: #ffffff;
    border-color: #e2e8f0;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

[data-theme="light"] .notice-header {
    background: #f7fafc;
}

/* ============================================
   主内容区
   ============================================ */
.main-content {
    padding: var(--spacing-2xl) var(--spacing-xl);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

/* 状态栏 */
.status-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-warning);
    animation: pulse 2s infinite;
}

.status-indicator.online .status-dot {
    background: var(--color-success);
}

.status-indicator.offline .status-dot {
    background: var(--color-error);
    animation: none;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.5;
        transform: scale(1.2);
    }
}

.status-text {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.quota-display {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
    font-weight: 500;
}

#remainingQuota {
    color: var(--color-primary);
    font-weight: 700;
}

/* ============================================
   面板布局 - Batch Verifier 风格
   ============================================ */
.panels {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}

@media (max-width: 1024px) {
    .panels {
        grid-template-columns: 1fr;
    }
}

.panel {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    transition: all var(--transition-base);
    border: 1px solid var(--border-color);
    border-left: 3px solid var(--color-primary);
    /* 橙色左边框 */
}

.panel:hover {
    box-shadow: var(--shadow-xl);
    border-left-color: var(--color-primary-light);
}

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

.panel-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.panel-icon {
    font-size: 1.25rem;
}

.panel-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.action-btn {
    width: 36px;
    height: 36px;
    border: none;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.action-btn:hover {
    background: var(--border-color);
}

.action-btn svg {
    width: 18px;
    height: 18px;
    color: var(--text-secondary);
}

.panel-body {
    padding: var(--spacing-xl);
}

/* ============================================
   表单样式
   ============================================ */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.label-hint {
    font-weight: 400;
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
    margin-left: var(--spacing-sm);
}

.input-wrapper {
    display: flex;
    gap: var(--spacing-sm);
}

.form-input {
    flex: 1;
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-family: inherit;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

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

.form-textarea {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-family: 'Consolas', 'Monaco', monospace;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--bg-primary);
    color: var(--text-primary);
    resize: vertical;
    min-height: 120px;
    transition: all var(--transition-fast);
}

.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

.verify-cdk-btn {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: 600;
    border: none;
    border-radius: var(--radius-lg);
    background: var(--gradient-secondary);
    color: white;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.verify-cdk-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.cdk-status {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    display: none;
}

.cdk-status.valid {
    display: block;
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.cdk-status.invalid {
    display: block;
    background: rgba(239, 68, 68, 0.1);
    color: var(--color-error);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.input-info {
    display: flex;
    justify-content: space-between;
    margin-top: var(--spacing-sm);
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
}

/* 提交按钮 - 青绿色风格 */
.submit-btn {
    width: 100%;
    padding: var(--spacing-lg);
    font-size: var(--font-size-lg);
    font-weight: 700;
    border: none;
    border-radius: var(--radius-xl);
    background: var(--gradient-secondary);
    /* 青绿色渐变 */
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.submit-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.submit-btn:hover::before {
    left: 100%;
}

.submit-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-green);
}

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

.submit-btn.loading .btn-icon,
.submit-btn.loading .btn-text {
    opacity: 0;
}

.btn-loading {
    display: none;
    position: absolute;
}

.submit-btn.loading .btn-loading {
    display: block;
}

.spinner {
    width: 24px;
    height: 24px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

/* ============================================
   结果区域
   ============================================ */
.results-container {
    min-height: 300px;
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 300px;
    color: var(--text-tertiary);
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.empty-text {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.empty-hint {
    font-size: var(--font-size-sm);
}

.results-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.result-item {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.result-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.result-item.success .result-icon {
    background: rgba(16, 185, 129, 0.2);
}

.result-item.error .result-icon {
    background: rgba(239, 68, 68, 0.2);
}

.result-item.pending .result-icon {
    background: rgba(245, 158, 11, 0.2);
}

.result-content {
    flex: 1;
}

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

.result-message {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    margin-top: 2px;
}

.result-time {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
}

/* ============================================
   购买指南区块（价格+流程）
   ============================================ */
.guide-section {
    padding: var(--spacing-2xl) var(--spacing-xl);
    background: transparent;
}

/* 标题栏布局 */
.guide-title-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto var(--spacing-xl) auto;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.guide-title-left {
    flex: 1;
}

.guide-title-left .section-title {
    margin-bottom: var(--spacing-xs);
    text-align: left;
    justify-content: flex-start;
}

.guide-title-left .section-subtitle {
    text-align: left;
    margin-bottom: 0;
}

.guide-title-bar .buy-now-btn {
    flex-shrink: 0;
}

@media (max-width: 768px) {
    .guide-title-bar {
        flex-direction: column;
        align-items: stretch;
    }

    .guide-title-left .section-title,
    .guide-title-left .section-subtitle {
        text-align: center;
    }

    .guide-title-left .section-title {
        justify-content: center;
    }

    .guide-title-bar .buy-now-btn {
        width: 100%;
        justify-content: center;
    }
}

.guide-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    max-width: 1400px;
    margin: 0 auto;
}

@media (max-width: 1024px) {
    .guide-layout {
        grid-template-columns: 1fr;
    }
}

.guide-left,
.guide-right {
    background: var(--bg-primary);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.guide-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.guide-icon {
    font-size: 1.5rem;
}

.guide-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.guide-desc {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-lg);
}

/* 紧凑型价格网格 */
.pricing-grid-compact {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

@media (max-width: 768px) {
    .pricing-grid-compact {
        grid-template-columns: repeat(2, 1fr);
    }
}

.pricing-grid-compact .pricing-card {
    padding: var(--spacing-md);
}

.pricing-grid-compact .pricing-tier {
    font-size: var(--font-size-2xl);
}

.pricing-grid-compact .pricing-price {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xs);
}

/* 步骤列表 */
.steps-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.step-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.step-item:hover {
    transform: translateX(5px);
    background: rgba(99, 102, 241, 0.05);
}

.step-num {
    width: 28px;
    height: 28px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    color: white;
    font-weight: 700;
    font-size: var(--font-size-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.step-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex: 1;
}

.step-icon-small {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.step-info h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 2px 0;
}

.step-info p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin: 0;
}

/* 底部购买按钮 */
.guide-action {
    text-align: center;
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
}

.guide-hint {
    margin-top: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
}

/* ============================================
   价格区块（保留兼容）
   ============================================ */
.pricing-section {
    padding: var(--spacing-2xl) var(--spacing-xl);
    background: var(--bg-secondary);
}

.section-title {
    text-align: center;
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.title-icon {
    font-size: 2rem;
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    text-align: center;
    border: 2px solid var(--border-color);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.pricing-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-xl);
}

.pricing-card.popular {
    border-color: var(--color-primary);
}

.pricing-card.popular::before {
    content: '推荐';
    position: absolute;
    top: 16px;
    right: -30px;
    background: var(--gradient-primary);
    color: white;
    padding: 4px 40px;
    font-size: var(--font-size-xs);
    font-weight: 600;
    transform: rotate(45deg);
}

.pricing-tier {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-xs);
}

.pricing-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.pricing-price {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}

.pricing-price span {
    font-size: var(--font-size-sm);
    font-weight: 400;
    color: var(--text-tertiary);
}

.pricing-btn {
    width: 100%;
    padding: var(--spacing-md);
    font-size: var(--font-size-base);
    font-weight: 600;
    border: 2px solid var(--color-primary);
    border-radius: var(--radius-lg);
    background: transparent;
    color: var(--color-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

/* 展示模式卡片（不可点击） */
.pricing-card.display-only {
    cursor: default;
}

.pricing-card.display-only:hover {
    transform: translateY(-4px);
}

.pricing-unit {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
    margin-top: calc(-1 * var(--spacing-sm));
}

/* 库存显示 */
.pricing-stock {
    font-size: var(--font-size-xs);
    color: var(--color-success);
    margin-top: var(--spacing-sm);
    padding: 4px 8px;
    background: rgba(16, 185, 129, 0.1);
    border-radius: var(--radius-sm);
}

.pricing-stock.low-stock {
    color: #ef4444;
    background: rgba(239, 68, 68, 0.1);
}

.pricing-stock.out-of-stock {
    color: var(--text-tertiary);
    background: rgba(156, 163, 175, 0.1);
}

.pricing-card.out-of-stock {
    opacity: 0.5;
}

/* 购买按钮区域 */
.pricing-action {
    text-align: center;
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
}

.buy-now-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg) var(--spacing-3xl);
    font-size: var(--font-size-xl);
    font-weight: 700;
    border: none;
    border-radius: var(--radius-xl);
    background: var(--gradient-primary);
    color: white;
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.buy-now-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.buy-now-btn:hover::before {
    left: 100%;
}

.buy-now-btn:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: var(--shadow-glow);
}

.buy-now-btn .btn-icon {
    font-size: 1.5rem;
}

.buy-now-btn .btn-arrow {
    font-size: 1.2rem;
    transition: transform var(--transition-fast);
}

.buy-now-btn:hover .btn-arrow {
    transform: translateX(5px);
}

.pricing-hint {
    margin-top: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
}


/* ============================================
   使用说明
   ============================================ */
.how-it-works {
    padding: var(--spacing-2xl) var(--spacing-xl);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    max-width: 1200px;
    margin: 0 auto;
}

.step-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    text-align: center;
    position: relative;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.step-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.step-number {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 30px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    color: white;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
}

.step-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.step-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.step-desc {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ============================================
   页脚
   ============================================ */
.footer {
    background: transparent;
    padding: var(--spacing-2xl) var(--spacing-xl);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.footer-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.footer-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

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

.copyright {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
}

/* ============================================
   响应式设计
   ============================================ */
@media (max-width: 768px) {
    .header-content {
        padding: var(--spacing-md);
    }

    .nav-links {
        display: none;
    }

    .main-content {
        padding: var(--spacing-lg) var(--spacing-md);
    }

    .status-bar {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }

    .section-title {
        font-size: var(--font-size-2xl);
    }

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

    .steps-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .input-wrapper {
        flex-direction: column;
    }

    .verify-cdk-btn {
        width: 100%;
    }
}

/* ============================================
   页脚
   ============================================ */
.footer {
    background: transparent;
    padding: var(--spacing-xl) var(--spacing-xl);
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    color: var(--text-primary);
}

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

.footer-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

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

.copyright {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    margin: 0;
}

/* ============================================
   全局通知栏
   ============================================ */
.global-notice {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 9998;
    background: linear-gradient(135deg, #f5a623 0%, #e09000 100%);
    color: #000;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    font-size: var(--font-size-sm);
    font-weight: 500;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
    }

    to {
        transform: translateY(0);
    }
}

.global-notice-text {
    flex: 1;
    text-align: center;
}

.global-notice-close {
    background: rgba(0, 0, 0, 0.15);
    border: none;
    padding: 6px 14px;
    border-radius: 20px;
    cursor: pointer;
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: #000;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.global-notice-close:hover {
    background: rgba(0, 0, 0, 0.25);
}

.global-notice.hidden {
    display: none;
}

/* 当通知栏显示时，给body添加padding-top */
body.has-notice {
    padding-top: 50px;
}

/* ============================================
   悬浮侧边服务卡片
   ============================================ */
.side-services {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 100;
}

.side-card {
    position: fixed;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 24px 14px;
    cursor: pointer;
    pointer-events: auto;
    transition: all var(--transition-base);
    width: 120px;
    min-height: 180px;
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.side-card:hover {
    transform: scale(1.05);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-glow);
}

.side-card-left {
    left: 10px;
    border-left: 4px solid var(--color-primary);
}

.side-card-right {
    right: 10px;
    border-right: 4px solid var(--color-secondary);
}

.side-card-top {
    top: 15%;
}

.side-card-bottom {
    top: 55%;
}

.side-card-icon {
    font-size: 2rem;
    margin-bottom: 10px;
}

.side-card-content {
    margin-bottom: 10px;
    flex: 1;
}

.side-card-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
    line-height: 1.3;
}

.side-card-desc {
    font-size: 11px;
    color: var(--text-tertiary);
    line-height: 1.4;
}

.side-card-tip {
    font-size: 10px;
    color: var(--color-primary);
    font-weight: 600;
    padding-top: 8px;
    border-top: 1px dashed var(--border-color);
    width: 100%;
}

/* 小屏幕隐藏侧边卡片 */
@media (max-width: 1400px) {
    .side-card {
        display: none;
    }
}

/* 亮色主题 */
[data-theme="light"] .side-card {
    background: #ffffff;
    border-color: #e2e8f0;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .side-card:hover {
    box-shadow: 0 10px 30px rgba(245, 166, 35, 0.2);
}