/* ============================================
   探花 - 游戏解说与视频社区 官方网站样式
   品牌域名：ps327.cn
   原创设计 - 暗夜电竞风格
   ============================================ */

/* === 基础重置与全局变量 === */
:root {
    --primary: #FF6B35;
    --secondary: #1A1A2E;
    --accent: #E94560;
    --bg-dark: #0F0F1A;
    --bg-card: #16213E;
    --text-light: #E8E8E8;
    --text-muted: #A0A0B8;
    --gradient-primary: linear-gradient(135deg, #FF6B35, #E94560);
    --gradient-dark: linear-gradient(180deg, #0F0F1A, #1A1A2E);
    --shadow-card: 0 8px 32px rgba(0,0,0,0.3);
    --shadow-glow: 0 0 20px rgba(255,107,53,0.3);
    --radius: 12px;
    --radius-sm: 8px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-light);
    line-height: 1.7;
    overflow-x: hidden;
}

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

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

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

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

/* === 顶部导航栏 === */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(15,15,26,0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255,107,53,0.15);
    transition: var(--transition);
}

.site-header.scrolled {
    box-shadow: 0 4px 20px rgba(0,0,0,0.5);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.site-logo img {
    height: 42px;
    width: auto;
}

.site-logo span {
    font-size: 1.3rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 6px;
}

.main-nav a {
    color: var(--text-light);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition);
    white-space: nowrap;
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--primary);
    background: rgba(255,107,53,0.1);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-light);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 8px;
}

/* === 搜索框 === */
.search-bar {
    background: var(--secondary);
    padding: 14px 0;
    border-bottom: 1px solid rgba(255,107,53,0.1);
    margin-top: 68px;
}

.search-bar .container {
    display: flex;
    justify-content: center;
}

.search-wrapper {
    display: flex;
    max-width: 600px;
    width: 100%;
    position: relative;
}

.search-wrapper input {
    flex: 1;
    padding: 12px 20px;
    background: var(--bg-card);
    border: 1px solid rgba(255,107,53,0.2);
    border-radius: var(--radius) 0 0 var(--radius);
    color: var(--text-light);
    font-size: 0.95rem;
    outline: none;
    transition: var(--transition);
}

.search-wrapper input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 10px rgba(255,107,53,0.2);
}

.search-wrapper input::placeholder {
    color: var(--text-muted);
}

.search-wrapper button {
    padding: 12px 28px;
    background: var(--gradient-primary);
    border: none;
    border-radius: 0 var(--radius) var(--radius) 0;
    color: #fff;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.search-wrapper button:hover {
    opacity: 0.9;
    box-shadow: var(--shadow-glow);
}

/* === Banner 区域 === */
.hero-banner {
    position: relative;
    min-height: 520px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: var(--bg-dark);
}

.hero-banner .banner-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.45;
    filter: brightness(0.6);
}

.hero-banner .banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(15,15,26,0.3) 0%, rgba(15,15,26,0.85) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 60px 20px;
    max-width: 800px;
}

.hero-content h1 {
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 16px;
    line-height: 1.3;
}

.hero-content h1 .brand-highlight {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-content .hero-desc {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin-bottom: 30px;
    line-height: 1.8;
}

.hero-btns {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    background: var(--gradient-primary);
    color: #fff;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
    color: #fff;
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-outline:hover {
    background: var(--primary);
    color: #fff;
    transform: translateY(-2px);
}

/* === 通用模块标题 === */
.section-title {
    text-align: center;
    margin-bottom: 48px;
}

.section-title h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 12px;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.section-title p {
    color: var(--text-muted);
    font-size: 1rem;
    margin-top: 16px;
}

/* === 各内容区块 === */
.section {
    padding: 80px 0;
}

.section-alt {
    background: var(--secondary);
}

/* === 视频卡片网格 === */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.video-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-card);
    cursor: pointer;
}

.video-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-glow);
}

.video-thumb {
    position: relative;
    padding-top: 56.25%;
    overflow: hidden;
}

.video-thumb img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.video-card:hover .video-thumb img {
    transform: scale(1.05);
}

.video-play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    width: 60px;
    height: 60px;
    background: rgba(255,107,53,0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.video-play-btn::after {
    content: '';
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 10px 0 10px 18px;
    border-color: transparent transparent transparent #fff;
    margin-left: 3px;
}

.video-card:hover .video-play-btn {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.video-duration {
    position: absolute;
    bottom: 8px;
    right: 8px;
    background: rgba(0,0,0,0.8);
    color: #fff;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
}

.video-info {
    padding: 16px;
}

.video-info h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 8px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.video-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* === 分类标签卡片 === */
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 24px;
}

.category-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 28px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(255,107,53,0.1);
}

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

.category-card .icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
}

.category-card h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.category-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* === 专家展示 === */
.expert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 28px;
}

.expert-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 32px 24px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(255,107,53,0.08);
}

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

.expert-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    margin: 0 auto 16px;
    overflow: hidden;
    border: 3px solid var(--primary);
}

.expert-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.expert-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.expert-card .role {
    color: var(--primary);
    font-size: 0.9rem;
    margin-bottom: 12px;
}

.expert-card .bio {
    color: var(--text-muted);
    font-size: 0.88rem;
    line-height: 1.6;
    margin-bottom: 16px;
}

.expert-card .expert-btns {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.btn-sm {
    padding: 8px 18px;
    font-size: 0.85rem;
    border-radius: 20px;
}

/* === FAQ 区域 === */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-card);
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
    overflow: hidden;
    border: 1px solid rgba(255,107,53,0.08);
}

.faq-question {
    padding: 18px 24px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
}

.faq-question:hover {
    color: var(--primary);
}

.faq-question .arrow {
    transition: var(--transition);
    font-size: 1.2rem;
}

.faq-item.active .faq-question .arrow {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
}

.faq-answer-inner {
    padding: 0 24px 18px;
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.7;
}

.faq-item.active .faq-answer {
    max-height: 300px;
}

/* === 用户评论 === */
.review-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.review-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 24px;
    border: 1px solid rgba(255,107,53,0.08);
    transition: var(--transition);
}

.review-card:hover {
    border-color: rgba(255,107,53,0.3);
}

.review-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
}

.review-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1rem;
    color: #fff;
    flex-shrink: 0;
}

.review-user .name {
    font-weight: 600;
    font-size: 0.95rem;
}

.review-user .date {
    color: var(--text-muted);
    font-size: 0.82rem;
}

.review-stars {
    color: var(--primary);
    margin-bottom: 10px;
    font-size: 0.9rem;
}

.review-text {
    color: var(--text-muted);
    font-size: 0.92rem;
    line-height: 1.7;
}

/* === 联系我们 === */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.contact-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 28px;
    text-align: center;
    border: 1px solid rgba(255,107,53,0.08);
}

.contact-card .contact-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 14px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.contact-card h4 {
    font-size: 1.05rem;
    margin-bottom: 8px;
}

.contact-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* === 合作品牌墙 === */
.partner-wall {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 32px;
    padding: 20px 0;
}

.partner-item {
    background: var(--bg-card);
    border-radius: var(--radius-sm);
    padding: 20px 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 160px;
    border: 1px solid rgba(255,107,53,0.1);
    transition: var(--transition);
    font-weight: 600;
    color: var(--text-muted);
}

.partner-item:hover {
    border-color: var(--primary);
    color: var(--primary);
}

/* === How-To 指南 === */
.howto-steps {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 24px;
    margin-top: 32px;
}

.howto-step {
    text-align: center;
    padding: 24px;
}

.step-number {
    width: 48px;
    height: 48px;
    margin: 0 auto 14px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    color: #fff;
}

.howto-step h4 {
    font-size: 1rem;
    margin-bottom: 8px;
}

.howto-step p {
    color: var(--text-muted);
    font-size: 0.88rem;
    line-height: 1.6;
}

/* === 社交分享 === */
.share-btns {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 20px;
}

.share-btn {
    padding: 10px 24px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    color: #fff;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.share-btn:hover {
    transform: translateY(-2px);
    opacity: 0.9;
}

.share-wechat { background: #07C160; }
.share-weibo { background: #E6162D; }
.share-douyin { background: #161823; border: 1px solid #444; }
.share-bilibili { background: #00A1D6; }

/* === 页脚 === */
.site-footer {
    background: #0A0A14;
    padding: 60px 0 0;
    border-top: 1px solid rgba(255,107,53,0.1);
}

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

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

.footer-brand .footer-logo img {
    height: 36px;
}

.footer-brand .footer-logo span {
    font-size: 1.15rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 16px;
}

.footer-qrcodes {
    display: flex;
    gap: 16px;
}

.footer-qrcodes .qr-item {
    text-align: center;
}

.footer-qrcodes .qr-item img {
    width: 100px;
    height: 100px;
    border-radius: 8px;
    margin-bottom: 6px;
}

.footer-qrcodes .qr-item span {
    display: block;
    font-size: 0.78rem;
    color: var(--text-muted);
}

.footer-col h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-light);
}

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

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

.footer-col ul li a {
    color: var(--text-muted);
    font-size: 0.9rem;
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: var(--primary);
}

.footer-bottom {
    border-top: 1px solid rgba(255,107,53,0.08);
    padding: 20px 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.footer-bottom a {
    color: var(--text-muted);
}

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

/* === 面包屑导航 === */
.breadcrumb {
    padding: 16px 0;
    margin-top: 68px;
    background: var(--secondary);
    border-bottom: 1px solid rgba(255,107,53,0.08);
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
    font-size: 0.9rem;
}

.breadcrumb-list li + li::before {
    content: '>';
    margin-right: 8px;
    color: var(--text-muted);
}

.breadcrumb-list a {
    color: var(--text-muted);
}

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

.breadcrumb-list .current {
    color: var(--primary);
}

/* === 内页通用 === */
.page-hero {
    padding: 60px 0;
    text-align: center;
    background: var(--secondary);
}

.page-hero h1 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.page-hero p {
    color: var(--text-muted);
    font-size: 1.05rem;
}

/* === 标签 === */
.tag {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(255,107,53,0.15);
    color: var(--primary);
    border-radius: 20px;
    font-size: 0.8rem;
    margin: 2px;
}

/* === 数据统计条 === */
.stats-bar {
    display: flex;
    justify-content: center;
    gap: 48px;
    padding: 40px 0;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-item .stat-num {
    font-size: 2.2rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-item .stat-label {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 4px;
}

/* === 懒加载占位 === */
.lazy-load {
    opacity: 0;
    transition: opacity 0.5s ease;
}

.lazy-load.loaded {
    opacity: 1;
}

/* === 回到顶部 === */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.3rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
    border: none;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

/* === 响应式设计 === */
@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .main-nav {
        position: fixed;
        top: 68px;
        left: 0;
        width: 100%;
        background: rgba(15,15,26,0.98);
        flex-direction: column;
        padding: 20px;
        gap: 4px;
        transform: translateY(-120%);
        transition: var(--transition);
        border-bottom: 1px solid rgba(255,107,53,0.15);
    }

    .main-nav.open {
        transform: translateY(0);
    }

    .main-nav a {
        width: 100%;
        text-align: center;
        padding: 12px;
    }

    .mobile-menu-btn {
        display: block;
    }

    .hero-content h1 {
        font-size: 1.8rem;
    }

    .hero-banner {
        min-height: 400px;
    }

    .section-title h2 {
        font-size: 1.5rem;
    }

    .section {
        padding: 50px 0;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .stats-bar {
        gap: 24px;
    }

    .stat-item .stat-num {
        font-size: 1.6rem;
    }

    .video-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }

    .expert-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }

    .header-inner {
        height: 60px;
    }

    .search-bar {
        margin-top: 60px;
    }

    .breadcrumb {
        margin-top: 60px;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 1.5rem;
    }

    .hero-btns {
        flex-direction: column;
        align-items: center;
    }

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

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

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

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

/* === MCP 服务前端占位 === */
.mcp-widget {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 24px;
    text-align: center;
    border: 1px dashed rgba(255,107,53,0.3);
    margin-top: 20px;
}

.mcp-widget p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* === 社区频道网格 === */
.channel-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
}

.channel-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 24px;
    text-align: center;
    border: 1px solid rgba(255,107,53,0.08);
    transition: var(--transition);
}

.channel-card:hover {
    border-color: var(--primary);
    transform: translateY(-3px);
}

.channel-card .channel-emoji {
    font-size: 2.5rem;
    margin-bottom: 12px;
}

.channel-card h4 {
    font-size: 1rem;
    margin-bottom: 6px;
}

.channel-card p {
    color: var(--text-muted);
    font-size: 0.85rem;
}