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

/* CSS变量定义 */
:root {
    --primary-color: #3b82f6;
    --primary-dark: #2563eb;
    --secondary-color: #10b981;
    --accent-color: #f59e0b;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-accent: #f3f4f6;
    --border-color: #e5e7eb;
    --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);
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --transition: all 0.3s ease;
}

/* 基础字体和布局 */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* 主要内容区域 */
.main-content {
    flex: 1;
    padding: 2rem 0;
    background: var(--bg-secondary);
}

/* 导航栏样式 */
.navbar {
    background: var(--bg-primary);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

.nav-logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.25rem;
}

.logo-icon {
    font-size: 1.5rem;
    margin-right: 0.5rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
    background-color: var(--bg-accent);
}

.nav-icon {
    margin-right: 0.5rem;
    font-size: 1.1rem;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle .bar {
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    margin: 3px 0;
    transition: var(--transition);
}

/* 页脚样式 */
.footer {
    background: var(--text-primary);
    color: white;
    padding: 3rem 0 1rem;
    margin-top: auto;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: white;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
    color: #d1d5db;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #374151;
    color: #9ca3af;
}

/* 响应式导航 */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 64px;
        flex-direction: column;
        background-color: var(--bg-primary);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow-md);
        padding: 2rem 0;
        gap: 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-item {
        margin: 0.5rem 0;
    }
    
    .nav-link {
        padding: 1rem;
        display: block;
        width: 100%;
    }
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

.nav-logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.25rem;
}

.logo-icon {
    font-size: 1.5rem;
    margin-right: 0.5rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
    background-color: var(--bg-accent);
}

.nav-icon {
    margin-right: 0.5rem;
    font-size: 1.1rem;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    margin: 3px 0;
    transition: var(--transition);
}

/* 主要内容区域 */
.main-content {
    flex: 1;
}

/* Hero区域样式 */
.hero {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    padding: 4rem 0;
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content {
    max-width: 600px;
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.hero-icon {
    font-size: 3.5rem;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-weight: 600;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    padding: 0.75rem 2rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

/* 时间显示组件 */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.time-display {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-xl);
    text-align: center;
    border: 1px solid var(--border-color);
}

.current-time {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.time-part {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.time-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    font-family: 'Courier New', monospace;
}

.time-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.time-separator {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-light);
    margin: 0 0.5rem;
}

.current-date {
    font-size: 1.1rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* 功能特色区域 */
.features {
    padding: 5rem 0;
    background-color: var(--bg-secondary);
}

.features-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

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

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.feature-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.feature-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tag {
    background-color: var(--bg-accent);
    color: var(--text-secondary);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

/* 工具导航区域 */
.tools-nav {
    padding: 5rem 0;
    background-color: var(--bg-primary);
}

.tools-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.tool-card {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    text-decoration: none;
    color: inherit;
    border: 2px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.tool-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.tool-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.tool-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.tool-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.tool-examples {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.example {
    background-color: var(--primary-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

.tool-arrow {
    position: absolute;
    top: 2rem;
    right: 2rem;
    font-size: 1.5rem;
    color: var(--primary-color);
    transition: var(--transition);
}

.tool-card:hover .tool-arrow {
    transform: translateX(4px);
}

/* 快速开始区域 */
.quick-start {
    padding: 5rem 0;
    background-color: var(--bg-secondary);
}

.quick-start-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.quick-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 3rem;
}

.quick-link-group h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.quick-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.quick-btn {
    background-color: var(--bg-primary);
    color: var(--primary-color);
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 500;
    border: 2px solid var(--primary-color);
    transition: var(--transition);
}

.quick-btn:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* 页脚样式 */
.footer {
    background-color: var(--text-primary);
    color: white;
    padding: 3rem 0 1rem;
    margin-top: auto;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: white;
}

.footer-section p {
    color: #d1d5db;
    line-height: 1.6;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    color: #d1d5db;
    margin-bottom: 0.5rem;
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 1rem;
    text-align: center;
}

.footer-bottom p {
    color: #9ca3af;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 64px;
        flex-direction: column;
        background-color: var(--bg-primary);
        width: 100%;
        text-align: center;
        transition: var(--transition);
        box-shadow: var(--shadow-lg);
        padding: 2rem 0;
        gap: 1rem;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .hero-title {
        font-size: 2.5rem;
        justify-content: center;
    }

    .hero-subtitle {
        font-size: 1.25rem;
    }

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

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

    .quick-links {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .time-value {
        font-size: 2rem;
    }

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

@media (max-width: 480px) {
    .hero {
        padding: 2rem 0;
    }

    .hero-title {
        font-size: 2rem;
        flex-direction: column;
        gap: 0.5rem;
    }

    .hero-icon {
        font-size: 2.5rem;
    }

    .hero-buttons {
        justify-content: center;
    }

    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }

    .time-display {
        padding: 1.5rem;
    }

    .time-value {
        font-size: 1.5rem;
    }

    .feature-card,
    .tool-card {
        padding: 1.5rem;
    }

    .quick-buttons {
        justify-content: center;
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content,
.hero-visual,
.feature-card,
.tool-card {
    animation: fadeInUp 0.6s ease-out;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--text-light);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}/
* 功能页面通用样式 */
.page-header {
    text-align: center;
    margin-bottom: 2rem;
    padding: 2rem 0;
}

.page-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

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

.page-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* 倒计时页面样式 */
.countdown-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 1rem;
}

.countdown-setup {
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-md);
}

.time-inputs {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.time-input-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.time-input-group label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.time-input {
    width: 80px;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1.2rem;
    font-weight: 600;
    text-align: center;
    background: var(--bg-primary);
    transition: var(--transition);
}

.time-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.time-separator {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin: 0 0.5rem;
}

.description-input {
    margin-bottom: 1.5rem;
}

.description-input label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.description-field {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    background: var(--bg-primary);
    transition: var(--transition);
}

.description-field:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.control-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

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

.btn-primary:hover:not(:disabled) {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover:not(:disabled) {
    background: #059669;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.btn-outline:hover:not(:disabled) {
    background: var(--bg-accent);
    border-color: var(--text-secondary);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* 倒计时显示区域 */
.countdown-display {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.countdown-timer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.timer-part {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
}

.timer-value {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    font-family: 'Courier New', monospace;
    min-width: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.timer-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 600;
}

.timer-separator {
    font-size: 2rem;
    font-weight: 600;
    color: var(--text-light);
    margin: 0 0.5rem;
}

.countdown-description {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--bg-accent);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 1rem;
}

.progress-fill {
    height: 100%;
    background: var(--primary-color);
    transition: width 0.3s ease;
    border-radius: 4px;
}

.countdown-status {
    font-size: 1rem;
    color: var(--text-secondary);
}

/* 快捷时间按钮 */
.quick-times, .quick-dates {
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.quick-times h3, .quick-dates h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    text-align: center;
}

.quick-time-buttons, .quick-date-buttons {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    flex-wrap: wrap;
}

.quick-time-btn, .quick-date-btn {
    padding: 0.5rem 1rem;
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
}

.quick-time-btn:hover, .quick-date-btn:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

/* 历史记录样式 */
.countdown-history, .date-history {
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.countdown-history h3, .date-history h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.history-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.history-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.history-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    flex: 1;
}

.history-description {
    font-weight: 600;
    color: var(--text-primary);
}

.history-duration, .history-date, .history-days {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.history-actions {
    display: flex;
    gap: 0.5rem;
}

.history-use-btn, .history-delete-btn {
    padding: 0.25rem 0.75rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

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

.history-use-btn:hover {
    background: var(--primary-dark);
}

.history-delete-btn {
    background: #ef4444;
    color: white;
}

.history-delete-btn:hover {
    background: #dc2626;
}

.no-history {
    text-align: center;
    color: var(--text-light);
    font-style: italic;
    padding: 2rem;
}

/* 日期输入样式 */
.date-countdown-container, .date-countup-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 1rem;
}

.date-setup {
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-md);
}

.date-input-group {
    margin-bottom: 1.5rem;
}

.date-input-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.date-input {
    width: 100%;
    max-width: 300px;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    background: var(--bg-primary);
    transition: var(--transition);
}

.date-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* 倒数/正数结果显示 */
.countdown-result, .countup-result {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.result-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.days-display {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
}

.days-number {
    font-size: 4rem;
    font-weight: 700;
    color: var(--primary-color);
    font-family: 'Courier New', monospace;
}

.days-label {
    font-size: 1.5rem;
    color: var(--text-secondary);
    font-weight: 600;
}

.time-breakdown {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

.time-part {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
}

.time-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--secondary-color);
    font-family: 'Courier New', monospace;
    min-width: 60px;
}

.time-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 600;
}

.event-info {
    text-align: center;
}

.event-info h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.event-info p {
    color: var(--text-secondary);
}

/* 里程碑信息 */
.milestone-info {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
}

.milestone-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
}

.milestone-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 600;
}

.milestone-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-color);
}

/* 成就徽章 */
.achievement-badges {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.achievement-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    border: 2px solid;
}

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

.achievement-info {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
}

.achievement-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

.achievement-days {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* 特殊日期和里程碑 */
.special-dates, .milestones {
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.special-dates h3, .milestones h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.special-dates-list, .milestones-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.special-date-item, .milestone-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.special-date-info, .milestone-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    flex: 1;
}

.special-date-name, .milestone-name {
    font-weight: 600;
    color: var(--text-primary);
}

.special-date-date, .milestone-target {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.special-date-countdown, .milestone-countdown {
    display: flex;
    align-items: baseline;
    gap: 0.25rem;
    margin-right: 1rem;
}

.special-date-days, .milestone-days-left {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.special-date-label, .milestone-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.special-date-use-btn {
    padding: 0.25rem 0.75rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.special-date-use-btn:hover {
    background: var(--primary-dark);
}

/* 消息提示 */
.message {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    color: white;
    font-weight: 600;
    z-index: 1000;
    animation: slideIn 0.3s ease;
}

.message-info {
    background: var(--primary-color);
}

.message-success {
    background: var(--secondary-color);
}

.message-warning {
    background: var(--accent-color);
}

.message-error {
    background: #ef4444;
}

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

/* 完成通知 */
.completion-notification {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 1001;
    animation: fadeIn 0.3s ease;
}

.notification-content {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: 1rem;
    max-width: 400px;
    position: relative;
}

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

.notification-text h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.notification-text p {
    color: var(--text-secondary);
}

.notification-close {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-light);
    cursor: pointer;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.notification-close:hover {
    background: var(--bg-accent);
    color: var(--text-primary);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .page-title {
        font-size: 2rem;
    }
    
    .timer-value {
        font-size: 2.5rem;
        min-width: 60px;
    }
    
    .days-number {
        font-size: 3rem;
    }
    
    .time-inputs {
        flex-direction: column;
        gap: 1rem;
    }
    
    .time-inputs .time-separator {
        display: none;
    }
    
    .control-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .history-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .history-actions {
        width: 100%;
        justify-content: flex-end;
    }
    
    .milestone-info {
        gap: 1rem;
    }
    
    .achievement-badges {
        gap: 0.5rem;
    }
    
    .achievement-badge {
        flex-direction: column;
        text-align: center;
        padding: 0.75rem;
    }
}

@media (max-width: 480px) {
    .countdown-container, .date-countdown-container, .date-countup-container {
        padding: 0.5rem;
    }
    
    .countdown-setup, .date-setup {
        padding: 1rem;
    }
    
    .countdown-display, .countdown-result, .countup-result {
        padding: 1rem;
    }
    
    .page-title {
        font-size: 1.5rem;
    }
    
    .timer-value {
        font-size: 2rem;
        min-width: 50px;
    }
    
    .days-number {
        font-size: 2.5rem;
    }
    
    .time-value {
        font-size: 1.5rem;
        min-width: 50px;
    }
}/* 快捷操作栏
样式 */
.quick-action-bar {
    position: sticky;
    top: 64px; /* 导航栏高度 */
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.quick-actions-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.quick-actions-container::-webkit-scrollbar {
    display: none;
}

.quick-action-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    position: relative;
    min-width: fit-content;
}

.quick-action-item:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.quick-action-item.clicked {
    transform: scale(0.95);
    background: var(--primary-dark);
}

.quick-action-item.dragging {
    opacity: 0.5;
    transform: rotate(5deg);
}

.quick-action-item.drag-over-left::before {
    content: '';
    position: absolute;
    left: -2px;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--primary-color);
    border-radius: 2px;
}

.quick-action-item.drag-over-right::after {
    content: '';
    position: absolute;
    right: -2px;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--primary-color);
    border-radius: 2px;
}

.action-content {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.action-icon {
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
}

.action-label {
    font-size: 0.9rem;
    font-weight: 600;
}

.usage-count {
    background: var(--accent-color);
    color: white;
    font-size: 0.7rem;
    padding: 0.1rem 0.4rem;
    border-radius: 10px;
    font-weight: 600;
    min-width: 16px;
    text-align: center;
}

.pin-indicator {
    position: absolute;
    top: -4px;
    right: -4px;
    font-size: 0.7rem;
    background: var(--bg-primary);
    border-radius: 50%;
    width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.quick-action-settings {
    margin-left: auto;
    padding-left: 1rem;
}

.settings-btn {
    background: none;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 0.5rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.settings-btn:hover {
    background: var(--bg-accent);
    border-color: var(--text-secondary);
}

.settings-icon {
    font-size: 1.1rem;
}

.no-actions {
    color: var(--text-light);
    font-style: italic;
    padding: 1rem;
    text-align: center;
    width: 100%;
}

/* 右键菜单样式 */
.context-menu {
    position: absolute;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    min-width: 120px;
    overflow: hidden;
}

.context-menu-item {
    padding: 0.75rem 1rem;
    cursor: pointer;
    transition: var(--transition);
    border-bottom: 1px solid var(--border-color);
}

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

.context-menu-item:hover {
    background: var(--bg-accent);
}

/* 设置弹窗样式 */
.settings-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-light);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

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

.modal-body {
    flex: 1;
    padding: 1.5rem;
    overflow-y: auto;
}

.settings-section {
    margin-bottom: 2rem;
}

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

.settings-section h4 {
    margin: 0 0 1rem 0;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.current-actions, .available-actions {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.settings-action-item, .available-action-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.settings-action-item:hover, .available-action-item:hover {
    background: var(--bg-accent);
}

.settings-action-item .action-icon, .available-action-item .action-icon {
    font-size: 1.1rem;
    min-width: 20px;
    text-align: center;
}

.settings-action-item .action-label, .available-action-item .action-label {
    flex: 1;
    font-weight: 500;
}

.action-controls {
    display: flex;
    gap: 0.5rem;
}

.pin-btn, .remove-btn, .add-btn {
    background: none;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.9rem;
}

.pin-btn:hover {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

.pin-btn.pinned {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

.remove-btn:hover {
    background: #ef4444;
    color: white;
    border-color: #ef4444;
}

.add-btn:hover {
    background: var(--secondary-color);
    color: white;
    border-color: var(--secondary-color);
}

.modal-footer {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.reset-btn {
    margin-right: auto;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .quick-action-bar {
        top: 64px;
        padding: 0.75rem 0;
    }
    
    .quick-actions-container {
        padding: 0 0.5rem;
        gap: 0.75rem;
    }
    
    .quick-action-item {
        padding: 0.5rem 0.75rem;
        font-size: 0.9rem;
    }
    
    .action-icon {
        font-size: 1rem;
    }
    
    .action-label {
        font-size: 0.8rem;
    }
    
    .usage-count {
        font-size: 0.6rem;
        padding: 0.1rem 0.3rem;
    }
    
    .settings-btn {
        padding: 0.4rem;
    }
    
    .modal-content {
        width: 95%;
        max-height: 90vh;
    }
    
    .modal-header, .modal-body, .modal-footer {
        padding: 1rem;
    }
    
    .modal-footer {
        flex-direction: column;
    }
    
    .reset-btn {
        margin-right: 0;
        order: -1;
    }
}

@media (max-width: 480px) {
    .quick-action-item {
        padding: 0.4rem 0.6rem;
    }
    
    .action-label {
        display: none;
    }
    
    .quick-action-item:hover .action-label {
        display: inline;
        position: absolute;
        bottom: -30px;
        left: 50%;
        transform: translateX(-50%);
        background: var(--text-primary);
        color: white;
        padding: 0.25rem 0.5rem;
        border-radius: 4px;
        font-size: 0.7rem;
        white-space: nowrap;
        z-index: 10;
    }
    
    .quick-action-item:hover .action-label::before {
        content: '';
        position: absolute;
        top: -4px;
        left: 50%;
        transform: translateX(-50%);
        border-left: 4px solid transparent;
        border-right: 4px solid transparent;
        border-bottom: 4px solid var(--text-primary);
    }
}/* 日期时间行布
局 */
.date-time-row {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    align-items: end;
}

.date-input-wide {
    width: 100%;
    min-width: 200px;
    max-width: 300px;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    background: var(--bg-primary);
    transition: var(--transition);
}

.date-input-wide:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.time-input-group {
    min-width: 120px;
}

/* 结果操作按钮 */
.result-actions {
    margin: 1rem 0;
    text-align: center;
}

/* 保存计划弹窗样式 */
.save-plan-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.save-plan-modal .modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.save-plan-modal .modal-content {
    position: relative;
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    max-width: 400px;
    width: 90%;
    overflow: hidden;
}

.save-plan-modal .modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.save-plan-modal .modal-header h3 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.save-plan-modal .modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-light);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.save-plan-modal .modal-close:hover {
    background: var(--bg-accent);
    color: var(--text-primary);
}

.save-plan-modal .modal-body {
    padding: 1.5rem;
}

.save-plan-modal .form-group {
    margin-bottom: 1rem;
}

.save-plan-modal .form-group:last-child {
    margin-bottom: 0;
}

.save-plan-modal .form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.save-plan-modal .form-group input {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    background: var(--bg-primary);
    transition: var(--transition);
}

.save-plan-modal .form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.save-plan-modal .modal-footer {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .date-time-row {
        flex-direction: column;
        gap: 1rem;
    }
    
    .date-input-wide {
        max-width: none;
    }
    
    .time-input-group {
        min-width: auto;
    }
}

@media (max-width: 480px) {
    .save-plan-modal .modal-content {
        width: 95%;
    }
    
    .save-plan-modal .modal-header,
    .save-plan-modal .modal-body,
    .save-plan-modal .modal-footer {
        padding: 1rem;
    }
    
    .save-plan-modal .modal-footer {
        flex-direction: column;
    }
}