/* 萝莉岛 - 汽车改装视频社区 全新原创样式表 */
/* 配色：赛车蓝 #0066FF + 碳纤维黑 #1A1A2E + 钛金灰 #E0E0E0 + 警示橙 #FF6B35 */

:root {
    --primary: #0066FF;
    --primary-dark: #0044CC;
    --primary-light: #3388FF;
    --secondary: #FF6B35;
    --secondary-dark: #E55A2B;
    --bg-dark: #1A1A2E;
    --bg-darker: #0F0F1A;
    --bg-card: #16213E;
    --bg-card-hover: #1C2A4A;
    --text-main: #E0E0E0;
    --text-light: #A0A0B0;
    --text-white: #FFFFFF;
    --border-color: #2A2A4A;
    --shadow: 0 4px 20px rgba(0,102,255,0.15);
    --radius: 12px;
    --transition: all 0.3s ease;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', sans-serif;
    background: var(--bg-darker);
    color: var(--text-main);
    line-height: 1.8;
    min-height: 100vh;
}

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

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

.container { max-width: 1280px; margin: 0 auto; padding: 0 20px; }

/* === 顶部导航 === */
.site-header {
    background: linear-gradient(180deg, var(--bg-darker) 0%, rgba(15,15,26,0.95) 100%);
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(12px);
}

.header-inner {
    max-width: 1280px; margin: 0 auto; padding: 0 20px;
    display: flex; align-items: center; justify-content: space-between;
    height: 70px;
}

.logo-area { display: flex; align-items: center; gap: 10px; }
.logo-area img { height: 38px; width: auto; }
.logo-area .brand-text {
    font-size: 22px; font-weight: 700; color: var(--text-white);
    letter-spacing: 1px;
}
.logo-area .brand-text span { color: var(--primary); }

.main-nav { display: flex; gap: 6px; }
.main-nav a {
    color: var(--text-light); padding: 8px 16px; border-radius: 8px;
    font-size: 15px; font-weight: 500; transition: var(--transition);
}
.main-nav a:hover, .main-nav a.active {
    color: var(--text-white); background: var(--primary);
}

.nav-toggle { display: none; background: none; border: none; color: var(--text-white); font-size: 26px; cursor: pointer; }

/* === Hero区域 === */
.hero-section {
    margin-top: 70px; position: relative; overflow: hidden;
    height: 520px; display: flex; align-items: center;
}
.hero-bg {
    position: absolute; inset: 0; z-index: 0;
    background-size: cover; background-position: center;
    filter: brightness(0.4);
}
.hero-overlay {
    position: absolute; inset: 0; z-index: 1;
    background: linear-gradient(135deg, rgba(0,102,255,0.3) 0%, rgba(26,26,46,0.8) 100%);
}
.hero-content {
    position: relative; z-index: 2; max-width: 1280px;
    margin: 0 auto; padding: 0 40px;
}
.hero-content h1 {
    font-size: 48px; font-weight: 800; color: var(--text-white);
    margin-bottom: 16px; line-height: 1.2;
    text-shadow: 0 2px 20px rgba(0,102,255,0.4);
}
.hero-content h1 .highlight { color: var(--primary); }
.hero-content p {
    font-size: 18px; color: var(--text-light); max-width: 600px;
    margin-bottom: 30px; line-height: 1.7;
}
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }
.btn-primary {
    display: inline-flex; align-items: center; gap: 8px;
    background: var(--primary); color: var(--text-white);
    padding: 14px 32px; border-radius: 50px; font-size: 16px;
    font-weight: 600; transition: var(--transition); border: none; cursor: pointer;
}
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: var(--shadow); color: var(--text-white); }
.btn-outline {
    display: inline-flex; align-items: center; gap: 8px;
    background: transparent; color: var(--text-white);
    padding: 14px 32px; border-radius: 50px; font-size: 16px;
    font-weight: 600; border: 2px solid var(--primary); transition: var(--transition); cursor: pointer;
}
.btn-outline:hover { background: var(--primary); color: var(--text-white); }

/* === 区块标题 === */
.section-title {
    text-align: center; margin-bottom: 50px;
}
.section-title h2 {
    font-size: 34px; font-weight: 700; color: var(--text-white);
    margin-bottom: 12px; position: relative; display: inline-block;
}
.section-title h2::after {
    content: ''; display: block; width: 60px; height: 4px;
    background: var(--primary); margin: 12px auto 0; border-radius: 2px;
}
.section-title p { color: var(--text-light); font-size: 16px; max-width: 600px; margin: 0 auto; }

/* === 视频卡片网格 === */
.video-grid {
    display: grid; grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.video-card {
    background: var(--bg-card); border-radius: var(--radius);
    overflow: hidden; transition: var(--transition);
    border: 1px solid var(--border-color);
}
.video-card:hover {
    transform: translateY(-6px);
    border-color: var(--primary);
    box-shadow: 0 8px 30px rgba(0,102,255,0.2);
}
.video-thumb {
    position: relative; overflow: hidden;
    aspect-ratio: 16/9;
}
.video-thumb img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform 0.4s ease;
}
.video-card:hover .video-thumb img { transform: scale(1.08); }
.play-btn {
    position: absolute; top: 50%; left: 50%;
    transform: translate(-50%, -50%) scale(0);
    width: 60px; height: 60px; border-radius: 50%;
    background: rgba(0,102,255,0.9); display: flex;
    align-items: center; justify-content: center;
    transition: var(--transition); cursor: pointer;
}
.play-btn::after {
    content: ''; display: block; 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 .play-btn { 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: 12px;
}
.video-info { padding: 16px; }
.video-info h3 {
    font-size: 15px; font-weight: 600; color: var(--text-white);
    margin-bottom: 8px; line-height: 1.5;
    display: -webkit-box; -webkit-line-clamp: 2;
    -webkit-box-orient: vertical; overflow: hidden;
}
.video-meta {
    display: flex; justify-content: space-between; align-items: center;
    font-size: 13px; color: var(--text-light);
}
.video-meta .views { display: flex; align-items: center; gap: 4px; }
.video-tag {
    display: inline-block; padding: 2px 10px; border-radius: 20px;
    font-size: 12px; background: rgba(0,102,255,0.15);
    color: var(--primary-light); margin-top: 8px;
}

/* === 服务模块 === */
.services-section { padding: 80px 0; background: var(--bg-dark); }
.service-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px;
}
.service-card {
    background: var(--bg-card); border-radius: var(--radius);
    padding: 36px 28px; text-align: center;
    border: 1px solid var(--border-color); transition: var(--transition);
}
.service-card:hover {
    border-color: var(--primary);
    box-shadow: 0 6px 25px rgba(0,102,255,0.15);
    transform: translateY(-4px);
}
.service-icon {
    width: 72px; height: 72px; border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 20px; font-size: 32px; color: #fff;
}
.service-card h3 {
    font-size: 20px; font-weight: 600; color: var(--text-white);
    margin-bottom: 12px;
}
.service-card p { font-size: 14px; color: var(--text-light); line-height: 1.7; }

/* === 专家团队 === */
.experts-section { padding: 80px 0; }
.expert-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
}
.expert-card {
    background: var(--bg-card); border-radius: var(--radius);
    padding: 30px 20px; text-align: center;
    border: 1px solid var(--border-color); transition: var(--transition);
}
.expert-card:hover { border-color: var(--secondary); transform: translateY(-4px); }
.expert-avatar {
    width: 100px; height: 100px; border-radius: 50%;
    overflow: hidden; margin: 0 auto 16px;
    border: 3px solid var(--primary);
}
.expert-avatar img { width: 100%; height: 100%; object-fit: cover; }
.expert-card h4 { font-size: 18px; color: var(--text-white); margin-bottom: 6px; }
.expert-card .title { font-size: 14px; color: var(--primary-light); margin-bottom: 10px; }
.expert-card p { font-size: 13px; color: var(--text-light); line-height: 1.6; }

/* === AI赋能区域 === */
.ai-section { padding: 80px 0; background: var(--bg-dark); }
.ai-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; }
.ai-card {
    background: var(--bg-card); border-radius: var(--radius);
    padding: 36px; border: 1px solid var(--border-color);
    transition: var(--transition); display: flex; gap: 20px; align-items: flex-start;
}
.ai-card:hover { border-color: var(--secondary); box-shadow: 0 6px 25px rgba(255,107,53,0.15); }
.ai-icon {
    width: 56px; height: 56px; border-radius: 12px; flex-shrink: 0;
    background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
    display: flex; align-items: center; justify-content: center;
    font-size: 26px; color: #fff;
}
.ai-card h3 { font-size: 18px; color: var(--text-white); margin-bottom: 10px; }
.ai-card p { font-size: 14px; color: var(--text-light); line-height: 1.7; }

/* === 社区区域 === */
.community-section { padding: 80px 0; }
.comm-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.comm-card {
    background: var(--bg-card); border-radius: var(--radius);
    padding: 28px; border: 1px solid var(--border-color);
    transition: var(--transition);
}
.comm-card:hover { border-color: var(--primary); transform: translateY(-3px); }
.comm-card h4 { font-size: 17px; color: var(--text-white); margin-bottom: 10px; }
.comm-card p { font-size: 14px; color: var(--text-light); line-height: 1.7; }

/* === 用户评价 === */
.reviews-section { padding: 80px 0; background: var(--bg-dark); }
.review-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.review-card {
    background: var(--bg-card); border-radius: var(--radius);
    padding: 28px; border: 1px solid var(--border-color);
}
.review-header { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; }
.review-avatar { width: 50px; height: 50px; border-radius: 50%; overflow: hidden; }
.review-avatar img { width: 100%; height: 100%; object-fit: cover; }
.review-name { font-size: 16px; font-weight: 600; color: var(--text-white); }
.review-stars { color: var(--secondary); font-size: 14px; }
.review-card p { font-size: 14px; color: var(--text-light); line-height: 1.7; font-style: italic; }

/* === FAQ区域 === */
.faq-section { padding: 80px 0; }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
    background: var(--bg-card); border-radius: var(--radius);
    margin-bottom: 12px; border: 1px solid var(--border-color);
    overflow: hidden;
}
.faq-question {
    padding: 20px 24px; cursor: pointer; display: flex;
    justify-content: space-between; align-items: center;
    font-size: 16px; font-weight: 600; color: var(--text-white);
    transition: var(--transition);
}
.faq-question:hover { color: var(--primary); }
.faq-question .arrow { transition: transform 0.3s; font-size: 14px; }
.faq-item.active .faq-question .arrow { transform: rotate(180deg); }
.faq-answer {
    max-height: 0; overflow: hidden; transition: max-height 0.4s ease;
    padding: 0 24px;
}
.faq-item.active .faq-answer { max-height: 300px; padding: 0 24px 20px; }
.faq-answer p { font-size: 14px; color: var(--text-light); line-height: 1.7; }

/* === 页脚 === */
.site-footer {
    background: var(--bg-darker); border-top: 1px solid var(--border-color);
    padding: 60px 0 30px;
}
.footer-grid {
    display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px;
    margin-bottom: 40px;
}
.footer-brand .brand-text { font-size: 22px; font-weight: 700; color: var(--text-white); margin-bottom: 12px; }
.footer-brand .brand-text span { color: var(--primary); }
.footer-brand p { font-size: 14px; color: var(--text-light); line-height: 1.7; margin-bottom: 16px; }
.footer-col h4 {
    font-size: 16px; font-weight: 600; color: var(--text-white);
    margin-bottom: 16px; position: relative; padding-bottom: 10px;
}
.footer-col h4::after {
    content: ''; position: absolute; bottom: 0; left: 0;
    width: 30px; height: 3px; background: var(--primary); border-radius: 2px;
}
.footer-col a {
    display: block; color: var(--text-light); font-size: 14px;
    padding: 5px 0; transition: var(--transition);
}
.footer-col a:hover { color: var(--primary); padding-left: 6px; }
.footer-qr { display: flex; gap: 16px; }
.footer-qr img { width: 100px; height: 100px; border-radius: 8px; }
.footer-bottom {
    border-top: 1px solid var(--border-color); padding-top: 20px;
    display: flex; justify-content: space-between; align-items: center;
    flex-wrap: wrap; gap: 10px;
    font-size: 13px; color: var(--text-light);
}

/* === 面包屑 === */
.breadcrumb {
    padding: 16px 0; font-size: 14px; color: var(--text-light);
    margin-top: 70px;
}
.breadcrumb a { color: var(--primary-light); }
.breadcrumb span { margin: 0 8px; }

/* === 内页通用 === */
.page-hero {
    margin-top: 70px; padding: 60px 0; text-align: center;
    background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-darker) 100%);
    border-bottom: 1px solid var(--border-color);
}
.page-hero h1 { font-size: 36px; font-weight: 700; color: var(--text-white); margin-bottom: 12px; }
.page-hero p { font-size: 16px; color: var(--text-light); max-width: 600px; margin: 0 auto; }

.content-section { padding: 60px 0; }
.content-section h2 { font-size: 28px; color: var(--text-white); margin-bottom: 20px; }
.content-section h3 { font-size: 22px; color: var(--text-white); margin-bottom: 14px; }
.content-section p { font-size: 15px; color: var(--text-light); line-height: 1.8; margin-bottom: 16px; }

/* === 标签 === */
.tag-list { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 30px; }
.tag-item {
    padding: 6px 18px; border-radius: 20px; font-size: 14px;
    background: var(--bg-card); color: var(--text-light);
    border: 1px solid var(--border-color); cursor: pointer;
    transition: var(--transition);
}
.tag-item:hover, .tag-item.active {
    background: var(--primary); color: var(--text-white); border-color: var(--primary);
}

/* === 联系表单 === */
.contact-form { max-width: 600px; }
.form-group { margin-bottom: 20px; }
.form-group label {
    display: block; font-size: 14px; font-weight: 600;
    color: var(--text-white); margin-bottom: 8px;
}
.form-group input, .form-group textarea, .form-group select {
    width: 100%; padding: 12px 16px; border-radius: 8px;
    background: var(--bg-card); border: 1px solid var(--border-color);
    color: var(--text-main); font-size: 14px; transition: var(--transition);
}
.form-group input:focus, .form-group textarea:focus {
    border-color: var(--primary); outline: none;
    box-shadow: 0 0 0 3px rgba(0,102,255,0.2);
}

/* === 响应式 === */
@media (max-width: 1024px) {
    .video-grid { grid-template-columns: repeat(3, 1fr); }
    .expert-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .main-nav { display: none; position: fixed; top: 70px; left: 0; right: 0; background: var(--bg-darker); flex-direction: column; padding: 20px; border-bottom: 1px solid var(--border-color); }
    .main-nav.active { display: flex; }
    .nav-toggle { display: block; }
    .hero-content h1 { font-size: 32px; }
    .hero-section { height: 400px; }
    .video-grid { grid-template-columns: repeat(2, 1fr); }
    .service-grid { grid-template-columns: 1fr; }
    .ai-grid { grid-template-columns: 1fr; }
    .comm-grid { grid-template-columns: 1fr; }
    .review-grid { grid-template-columns: 1fr; }
    .expert-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr; }
    .section-title h2 { font-size: 26px; }
}
@media (max-width: 480px) {
    .video-grid { grid-template-columns: 1fr; }
    .expert-grid { grid-template-columns: 1fr; }
    .hero-content h1 { font-size: 26px; }
    .hero-btns { flex-direction: column; }
}

/* === 干扰标签隐藏 === */
div[id^="jx_"], div[class^="jx_"] {
    position: absolute; width: 0; height: 0; overflow: hidden;
    opacity: 0; pointer-events: none; z-index: -9999;
}