/* ============================================
   铁蛋电竞 - 公共样式
   主题色：紫色 #7c3aed
   ============================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #7c3aed;
    --primary-dark: #5b21b6;
    --primary-light: #a78bfa;
    --primary-bg: rgba(124, 58, 237, 0.1);
    --bg-dark: #0f0a1e;
    --bg-card: #1a1333;
    --bg-card-hover: #241a45;
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    --border: rgba(124, 58, 237, 0.2);
    --border-light: rgba(255, 255, 255, 0.08);
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --radius: 12px;
    --radius-lg: 16px;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 30px rgba(124, 58, 237, 0.3);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

a {
    color: var(--primary-light);
    text-decoration: none;
    transition: color 0.3s;
}

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

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

/* ============================================
   导航栏
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 10, 30, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
}

.navbar-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-primary);
    flex-shrink: 0;
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: bold;
    color: #fff;
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    background: linear-gradient(90deg, var(--primary-light), #fff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 24px;
    list-style: none;
}

.nav-links > li {
    position: relative;
}

.nav-links > li > a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
    padding: 8px 0;
    display: block;
    white-space: nowrap;
}

.nav-links > li > a:hover,
.nav-links > li > a.active {
    color: var(--primary-light);
}

.dropdown-arrow {
    font-size: 10px;
    margin-left: 4px;
}

/* 下拉菜单 */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 8px;
    min-width: 240px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    box-shadow: var(--shadow-lg);
}

.dropdown-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.dropdown-menu-wide {
    min-width: 320px;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: 8px;
    text-decoration: none;
    transition: background 0.2s;
}

.dropdown-item:hover {
    background: var(--primary-bg);
}

.dropdown-icon {
    font-size: 20px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-dark);
    border-radius: 8px;
    flex-shrink: 0;
}

.dropdown-text {
    display: flex;
    flex-direction: column;
}

.dropdown-title {
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 600;
}

.dropdown-desc {
    color: var(--text-muted);
    font-size: 12px;
}

.nav-cta {
    flex-shrink: 0;
}

/* 按钮 */
.btn {
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    display: inline-block;
    cursor: pointer;
    border: none;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(124, 58, 237, 0.4);
    color: #fff;
}

.btn-outline {
    background: transparent;
    color: var(--primary-light);
    border: 1px solid var(--primary);
}

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

.btn-lg {
    padding: 14px 32px;
    font-size: 16px;
}

.btn-block {
    display: block;
    width: 100%;
}

/* 移动端菜单按钮 */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 24px;
    cursor: pointer;
}

.mobile-menu {
    display: none;
    flex-direction: column;
    padding: 20px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
}

.mobile-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-light);
}

/* ============================================
   主内容区
   ============================================ */
.main-content {
    padding-top: 64px;
    min-height: calc(100vh - 200px);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 页面Hero区 */
.page-hero {
    padding: 60px 0 40px;
    text-align: center;
    background: linear-gradient(180deg, rgba(124, 58, 237, 0.15) 0%, transparent 100%);
}

.page-hero h1 {
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 16px;
    background: linear-gradient(90deg, var(--primary-light), #fff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-hero .subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* 区块标题 */
.section {
    padding: 60px 0;
}

.section-title {
    font-size: 32px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 16px;
}

.section-desc {
    font-size: 16px;
    color: var(--text-secondary);
    text-align: center;
    max-width: 600px;
    margin: 0 auto 40px;
}

/* ============================================
   通用UI组件
   ============================================ */

/* 卡片 */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: all 0.3s;
}

.card:hover {
    border-color: var(--border);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* 网格 */
.grid {
    display: grid;
    gap: 24px;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* 徽章 */
.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    background: var(--primary-bg);
    color: var(--primary-light);
}

.badge-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}

.badge-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

/* ============================================
   页脚
   ============================================ */
.site-footer {
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    margin-top: 60px;
    padding: 60px 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.footer-logo {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 18px;
    color: #fff;
}

.footer-brand-name {
    font-size: 20px;
    font-weight: 700;
}

.footer-desc {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.8;
}

.footer-title {
    color: var(--text-primary);
    font-size: 16px;
    margin-bottom: 16px;
}

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

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
}

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

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

.footer-contact li {
    margin-bottom: 10px;
    color: var(--text-secondary);
    font-size: 14px;
}

.footer-seo-links {
    border-top: 1px solid var(--border-light);
    padding-top: 20px;
    margin-bottom: 20px;
    text-align: center;
}

.footer-seo-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 13px;
    margin: 0 15px;
}

.footer-copyright {
    text-align: center;
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.8;
}

.footer-copyright a {
    color: var(--text-secondary);
    text-decoration: none;
}

/* ============================================
   响应式
   ============================================ */
@media (max-width: 1200px) {
    .nav-links {
        gap: 16px;
    }
}

@media (max-width: 992px) {
    .nav-links {
        display: none;
    }
    .menu-toggle {
        display: block;
    }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .page-hero h1 {
        font-size: 32px;
    }
    .page-hero .subtitle {
        font-size: 16px;
    }
    .section {
        padding: 40px 0;
    }
    .section-title {
        font-size: 24px;
    }
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}