/* 全局变量定义 */
:root {
    --primary-color: #1e88e5;
    --primary-dark: #1565c0;
    --secondary-color: #64b5f6;
    --accent-color: #ffd700;
    --accent-dark: #ffc400;
    --text-color: #2c3e50;
    --text-light: #6c757d;
    --bg-color: #ffffff;
    --section-bg: #f8f9fa;
    --card-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --card-hover-shadow: 0 8px 15px rgba(0, 0, 0, 0.15);
    --transition-speed: 0.3s;
    --border-radius: 8px;
    --spacing-unit: 1rem;
    --container-width: 1200px;
}

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

/* 基础样式 */
body {
    font-family: 'Segoe UI', 'Arial', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background: var(--bg-color);
}

/* 导航栏样式 */
.main-nav {
    background: rgba(255, 255, 255, 0.98);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-speed);
}

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

.nav-links a {
    position: relative;
    padding: 0.5rem 1rem;
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-speed);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: all var(--transition-speed);
    transform: translateX(-50%);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-links a:hover {
    color: var(--primary-color);
    background: rgba(30, 136, 229, 0.1);
}

/* Hero区域样式 */
.hero {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 8rem 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><circle cx="2" cy="2" r="1" fill="white" opacity="0.1"/></svg>');
    opacity: 0.1;
    animation: fadeInPattern 1.5s ease-out;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: 1.5rem;
    line-height: 1.2;
    letter-spacing: -0.02em;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.25rem);
    margin: 1.5rem auto;
    max-width: 800px;
    line-height: 1.6;
    opacity: 0.9;
}

.hero-description {
    font-size: 1.1rem;
    max-width: 700px;
    margin: 1rem auto 2rem;
    opacity: 0.9;
}

/* 按钮样式 */
.cta-button {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: var(--accent-color);
    color: var(--text-color);
    text-decoration: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    transition: all var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
}

.cta-button::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transform: translateX(-100%);
}

.cta-button:hover {
    transform: translateY(-2px);
    background: var(--accent-dark);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.cta-button:hover::after {
    animation: shimmer 1.5s infinite;
}

.secondary-button {
    display: inline-block;
    padding: 1rem 2rem;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    text-decoration: none;
    border-radius: var(--border-radius);
    font-weight: bold;
    margin-left: 1rem;
    transition: background var(--transition-speed);
}

.secondary-button:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* 内容区域通用样式 */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-unit);
}

section {
    padding: 5rem 0;
}

section:nth-child(even) {
    background: var(--section-bg);
}

.section-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3rem;
    color: #666;
}

/* 网格布局 */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-unit);
    margin-top: 2rem;
}

/* 卡片样式 */
.card {
    background: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--card-shadow);
    transition: all var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    opacity: 0;
    transition: opacity var(--transition-speed);
}

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

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

.card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* 列表样式 */
.feature-list,
.rod-features,
.stats-list,
.ability-list,
.guide-list,
.location-list,
.weather-list,
.event-list,
.skill-list,
.achievement-list,
.enhancement-list,
.trading-list,
.competition-list,
.social-list,
.update-list,
.upcoming-list {
    list-style: none;
    padding-left: 0;
}

.feature-list li,
.rod-features li,
.stats-list li,
.ability-list li,
.guide-list li,
.location-list li,
.weather-list li,
.event-list li,
.skill-list li,
.achievement-list li,
.enhancement-list li,
.trading-list li,
.competition-list li,
.social-list li,
.update-list li,
.upcoming-list li {
    margin: 0.8rem 0;
    padding-left: 1.8rem;
    position: relative;
    transition: transform var(--transition-speed);
}

.feature-list li::before,
.rod-features li::before,
.stats-list li::before,
.ability-list li::before,
.guide-list li::before,
.location-list li::before,
.weather-list li::before,
.event-list li::before,
.skill-list li::before,
.achievement-list li::before,
.enhancement-list li::before,
.trading-list li::before,
.competition-list li::before,
.social-list li::before,
.update-list li::before,
.upcoming-list li::before {
    content: '→';
    color: var(--primary-color);
    position: absolute;
    left: 0;
    transition: transform var(--transition-speed);
}

.feature-list li:hover,
.rod-features li:hover,
.stats-list li:hover,
.ability-list li:hover,
.guide-list li:hover {
    transform: translateX(5px);
}

.feature-list li:hover::before,
.rod-features li:hover::before,
.stats-list li:hover::before,
.ability-list li:hover::before,
.guide-list li:hover::before {
    transform: translateX(3px);
}

/* 页脚样式 */
footer {
    background: #2c3e50;
    color: white;
    padding: 4rem 0 2rem;
}

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

.footer-section h3 {
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
    padding: 0;
}

.footer-section ul li {
    margin: 0.5rem 0;
}

.footer-section a {
    color: white;
    text-decoration: none;
    transition: color var(--transition-speed);
}

.footer-section a:hover {
    color: var(--accent-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card {
    animation: fadeIn 0.6s ease-out forwards;
}

@keyframes shimmer {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

@keyframes fadeInPattern {
    from {
        opacity: 0;
    }
    to {
        opacity: 0.1;
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-unit);
    }

    .grid {
        gap: var(--spacing-unit);
    }

    .card {
        padding: 1.5rem;
    }

    .hero {
        padding: 6rem 1rem;
    }
}

/* 打印样式优化 */
@media print {
    .hero {
        background: none;
        color: var(--text-color);
    }

    .card {
        box-shadow: none;
        border: 1px solid #ddd;
    }

    .nav-links,
    .cta-button,
    .footer {
        display: none;
    }
}

/* 无障碍性支持 */
@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
    }
}

/* 滚动条美化 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

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

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

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* 文字选中样式 */
::selection {
    background: var(--primary-color);
    color: white;
}

/* 图片悬停效果 */
img {
    transition: transform var(--transition-speed);
}

img:hover {
    transform: scale(1.05);
}