/* =============================================
   91 修车改装 - 主样式文件
   域名: bdcojp.cn
   ============================================= */

/* ---- 全局重置 ---- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --color-primary: #E8400A;
    --color-secondary: #1A1A2E;
    --color-accent: #F5A623;
    --color-dark: #0D0D0D;
    --color-mid: #1C1C2E;
    --color-light: #F4F4F4;
    --color-text: #CCCCCC;
    --color-white: #FFFFFF;
    --color-border: #2A2A3E;
    --font-main: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
    --transition: 0.3s ease;
    --radius: 8px;
    --shadow: 0 4px 20px rgba(0,0,0,0.4);
}

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

body {
    font-family: var(--font-main);
    background-color: var(--color-dark);
    color: var(--color-text);
    line-height: 1.7;
    overflow-x: hidden;
}

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

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

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

ul, ol {
    list-style: none;
}

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

.section-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-white);
    text-align: center;
    margin-bottom: 0.5rem;
    position: relative;
}

.section-title span {
    color: var(--color-primary);
}

.section-subtitle {
    text-align: center;
    color: var(--color-text);
    margin-bottom: 3rem;
    font-size: 1rem;
}

.section-divider {
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    margin: 0.8rem auto 1rem;
    border-radius: 2px;
}

.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    border: none;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), #C0320A);
    color: var(--color-white);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #FF5520, var(--color-primary));
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(232,64,10,0.4);
}

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

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

.btn-accent {
    background: linear-gradient(135deg, var(--color-accent), #D4891A);
    color: var(--color-dark);
    font-weight: 700;
}

.btn-accent:hover {
    background: linear-gradient(135deg, #FFB733, var(--color-accent));
    color: var(--color-dark);
    transform: translateY(-2px);
}

/* ---- 顶部公告栏 ---- */
.top-bar {
    background: linear-gradient(90deg, var(--color-primary), #C0320A);
    color: var(--color-white);
    text-align: center;
    padding: 8px 20px;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

.top-bar a {
    color: var(--color-white);
    text-decoration: underline;
}

/* ---- 头部导航 ---- */
.site-header {
    background: rgba(13,13,13,0.97);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 2px 20px rgba(0,0,0,0.5);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.logo-wrap {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img {
    width: 50px;
    height: 50px;
    object-fit: contain;
    border-radius: 6px;
}

.logo-text {
    font-size: 1.6rem;
    font-weight: 900;
    color: var(--color-white);
    letter-spacing: 2px;
}

.logo-text span {
    color: var(--color-primary);
}

.logo-tagline {
    font-size: 0.7rem;
    color: var(--color-text);
    display: block;
    letter-spacing: 1px;
}

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

.main-nav a {
    color: var(--color-text);
    font-size: 0.9rem;
    padding: 8px 14px;
    border-radius: 6px;
    transition: all var(--transition);
    font-weight: 500;
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--color-white);
    background: rgba(232,64,10,0.15);
    color: var(--color-primary);
}

.nav-cta {
    background: var(--color-primary) !important;
    color: var(--color-white) !important;
    padding: 8px 18px !important;
    border-radius: 20px !important;
}

.nav-cta:hover {
    background: #C0320A !important;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}

.hamburger span {
    width: 25px;
    height: 2px;
    background: var(--color-white);
    border-radius: 2px;
    transition: all var(--transition);
}

/* ---- 搜索框 ---- */
.search-bar-wrap {
    background: var(--color-mid);
    border-bottom: 1px solid var(--color-border);
    padding: 10px 20px;
}

.search-bar-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 10px;
}

.search-bar-inner form {
    display: flex;
    flex: 1;
    max-width: 600px;
    margin: 0 auto;
    position: relative;
}

.search-bar-inner input[type="text"] {
    width: 100%;
    padding: 10px 50px 10px 18px;
    border-radius: 25px;
    border: 1px solid var(--color-border);
    background: rgba(255,255,255,0.05);
    color: var(--color-white);
    font-size: 0.9rem;
    outline: none;
    transition: border-color var(--transition);
}

.search-bar-inner input[type="text"]:focus {
    border-color: var(--color-primary);
}

.search-bar-inner input[type="text"]::placeholder {
    color: #666;
}

.search-btn {
    position: absolute;
    right: 4px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--color-primary);
    border: none;
    border-radius: 20px;
    color: white;
    padding: 7px 16px;
    cursor: pointer;
    font-size: 0.85rem;
    transition: background var(--transition);
}

.search-btn:hover {
    background: #C0320A;
}

/* ---- Hero Banner ---- */
.hero-section {
    position: relative;
    min-height: 88vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background-image: url('../images/hero-banner.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    filter: brightness(0.45);
    transform: scale(1.03);
    transition: transform 8s ease;
}

.hero-section:hover .hero-bg {
    transform: scale(1.0);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(13,13,13,0.7) 0%, rgba(26,26,46,0.5) 50%, rgba(13,13,13,0.8) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

.hero-badge {
    display: inline-block;
    background: rgba(232,64,10,0.2);
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
    padding: 5px 16px;
    border-radius: 20px;
    font-size: 0.8rem;
    letter-spacing: 2px;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 900;
    color: var(--color-white);
    line-height: 1.1;
    margin-bottom: 1.2rem;
    text-shadow: 0 2px 20px rgba(0,0,0,0.5);
}

.hero-title .highlight {
    color: var(--color-primary);
    display: block;
}

.hero-title .sub-highlight {
    color: var(--color-accent);
}

.hero-desc {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.8);
    max-width: 600px;
    margin-bottom: 2rem;
    line-height: 1.8;
}

.hero-stats {
    display: flex;
    gap: 40px;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

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

.hero-stat .num {
    font-size: 2rem;
    font-weight: 900;
    color: var(--color-primary);
    display: block;
    line-height: 1;
}

.hero-stat .label {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.6);
    margin-top: 4px;
}

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

.hero-scroll {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255,255,255,0.5);
    font-size: 0.75rem;
    animation: bounce 2s infinite;
}

.hero-scroll::after {
    content: '';
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, rgba(255,255,255,0.5), transparent);
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}

/* ---- 视频卡片网格 ---- */
.section-pad {
    padding: 80px 0;
}

.section-pad-sm {
    padding: 50px 0;
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.video-card {
    background: var(--color-mid);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--color-border);
    transition: all var(--transition);
    cursor: pointer;
    position: relative;
}

.video-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(232,64,10,0.2);
    border-color: var(--color-primary);
}

.video-thumb {
    position: relative;
    padding-top: 56.25%;
    overflow: hidden;
    background: #111;
}

.video-thumb img {
    position: absolute;
    inset: 0;
    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(0.8);
    width: 56px;
    height: 56px;
    background: rgba(232,64,10,0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all var(--transition);
    z-index: 3;
}

.play-btn::after {
    content: '';
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 10px 0 10px 18px;
    border-color: transparent transparent transparent white;
    margin-left: 4px;
}

.video-card:hover .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: white;
    font-size: 0.75rem;
    padding: 2px 8px;
    border-radius: 4px;
    z-index: 2;
}

.video-tag {
    position: absolute;
    top: 8px;
    left: 8px;
    background: var(--color-primary);
    color: white;
    font-size: 0.7rem;
    padding: 3px 10px;
    border-radius: 4px;
    z-index: 2;
    font-weight: 600;
}

.video-info {
    padding: 16px;
}

.video-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-white);
    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: 12px;
    font-size: 0.8rem;
    color: #888;
}

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

.video-stats {
    display: flex;
    gap: 12px;
    margin-top: 10px;
    font-size: 0.8rem;
    color: #666;
}

.video-stats .stat {
    display: flex;
    align-items: center;
    gap: 4px;
}

.stat-icon {
    font-size: 0.9rem;
}

/* ---- 特色区块 ---- */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--color-mid);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 30px 24px;
    text-align: center;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    transform: scaleX(0);
    transition: transform var(--transition);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

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

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
    display: block;
}

.feature-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 10px;
}

.feature-desc {
    font-size: 0.88rem;
    color: #888;
    line-height: 1.6;
}

/* ---- 专家团队 ---- */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 28px;
}

.team-card {
    background: var(--color-mid);
    border: 1px solid var(--color-border);
    border-radius: 14px;
    overflow: hidden;
    transition: all var(--transition);
    text-align: center;
}

.team-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.4);
    border-color: var(--color-accent);
}

.team-photo {
    width: 100%;
    height: 220px;
    object-fit: cover;
    object-position: top;
}

.team-info {
    padding: 20px;
}

.team-name {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 4px;
}

.team-role {
    font-size: 0.82rem;
    color: var(--color-primary);
    margin-bottom: 10px;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.team-desc {
    font-size: 0.85rem;
    color: #888;
    line-height: 1.6;
    margin-bottom: 14px;
}

.team-awards {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    justify-content: center;
    margin-bottom: 14px;
}

.award-badge {
    background: rgba(245,166,35,0.15);
    border: 1px solid rgba(245,166,35,0.3);
    color: var(--color-accent);
    font-size: 0.72rem;
    padding: 3px 10px;
    border-radius: 20px;
}

.team-actions {
    display: flex;
    gap: 8px;
    justify-content: center;
}

.team-actions a {
    font-size: 0.8rem;
    padding: 6px 14px;
}

/* ---- 合作品牌 ---- */
.partners-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    justify-content: center;
    align-items: center;
}

.partner-item {
    background: var(--color-mid);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 16px 28px;
    font-size: 1rem;
    font-weight: 700;
    color: #888;
    transition: all var(--transition);
    min-width: 120px;
    text-align: center;
    letter-spacing: 1px;
}

.partner-item:hover {
    color: var(--color-white);
    border-color: var(--color-primary);
    background: rgba(232,64,10,0.08);
}

/* ---- 评价区 ---- */
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

.review-card {
    background: var(--color-mid);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 24px;
    transition: all var(--transition);
    position: relative;
}

.review-card::before {
    content: '"';
    position: absolute;
    top: 16px;
    right: 20px;
    font-size: 4rem;
    color: rgba(232,64,10,0.15);
    font-family: serif;
    line-height: 1;
}

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

.review-stars {
    color: var(--color-accent);
    font-size: 1rem;
    margin-bottom: 12px;
    letter-spacing: 2px;
}

.review-text {
    font-size: 0.9rem;
    color: #aaa;
    line-height: 1.7;
    margin-bottom: 16px;
}

.review-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.review-avatar {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1rem;
    flex-shrink: 0;
}

.review-name {
    font-weight: 600;
    color: var(--color-white);
    font-size: 0.9rem;
}

.review-date {
    font-size: 0.78rem;
    color: #666;
}

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

.faq-item {
    background: var(--color-mid);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    margin-bottom: 12px;
    overflow: hidden;
    transition: border-color var(--transition);
}

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

.faq-question {
    padding: 18px 20px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--color-white);
    font-weight: 600;
    font-size: 0.95rem;
    user-select: none;
}

.faq-question::after {
    content: '+';
    font-size: 1.4rem;
    color: var(--color-primary);
    transition: transform var(--transition);
    flex-shrink: 0;
    margin-left: 10px;
}

.faq-item.open .faq-question::after {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.3s ease;
    padding: 0 20px;
    color: #999;
    font-size: 0.9rem;
    line-height: 1.7;
}

.faq-item.open .faq-answer {
    max-height: 300px;
    padding: 0 20px 18px;
}

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

.contact-card {
    background: var(--color-mid);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 28px;
    text-align: center;
    transition: all var(--transition);
}

.contact-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
}

.contact-icon {
    font-size: 2.5rem;
    margin-bottom: 14px;
    display: block;
}

.contact-label {
    font-size: 0.85rem;
    color: #666;
    margin-bottom: 6px;
}

.contact-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-white);
}

.qr-code {
    width: 120px;
    height: 120px;
    background: white;
    border-radius: 8px;
    margin: 12px auto 0;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.qr-code canvas {
    width: 100% !important;
    height: 100% !important;
}

/* ---- 社交分享 ---- */
.share-bar {
    background: var(--color-mid);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    padding: 20px 0;
}

.share-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.share-label {
    color: #888;
    font-size: 0.9rem;
}

.share-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all var(--transition);
    cursor: pointer;
    border: 1px solid transparent;
}

.share-btn.wechat { background: rgba(7,193,96,0.15); color: #07C160; border-color: rgba(7,193,96,0.3); }
.share-btn.weibo { background: rgba(230,22,45,0.15); color: #E6162D; border-color: rgba(230,22,45,0.3); }
.share-btn.douyin { background: rgba(0,0,0,0.3); color: #FE2C55; border-color: rgba(254,44,85,0.3); }
.share-btn.bilibili { background: rgba(0,161,214,0.15); color: #00A1D6; border-color: rgba(0,161,214,0.3); }

.share-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

/* ---- AI赋能区块 ---- */
.ai-section {
    background: linear-gradient(135deg, var(--color-secondary) 0%, #0D0D1A 100%);
    position: relative;
    overflow: hidden;
}

.ai-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(232,64,10,0.08) 0%, transparent 70%);
    pointer-events: none;
}

.ai-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.ai-features {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.ai-feature-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 20px;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    transition: all var(--transition);
}

.ai-feature-item:hover {
    border-color: var(--color-primary);
    background: rgba(232,64,10,0.05);
}

.ai-feature-icon {
    font-size: 1.8rem;
    flex-shrink: 0;
    margin-top: 2px;
}

.ai-feature-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 6px;
}

.ai-feature-desc {
    font-size: 0.85rem;
    color: #888;
    line-height: 1.6;
}

.ai-image-wrap {
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid var(--color-border);
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.ai-image-wrap img {
    width: 100%;
    height: auto;
}

/* ---- 面包屑 ---- */
.breadcrumb {
    background: var(--color-mid);
    border-bottom: 1px solid var(--color-border);
    padding: 12px 0;
}

.breadcrumb-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: #666;
}

.breadcrumb-inner a {
    color: #888;
}

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

.breadcrumb-inner span {
    color: #444;
}

.breadcrumb-inner .current {
    color: var(--color-text);
}

/* ---- 页脚 ---- */
.site-footer {
    background: #080810;
    border-top: 1px solid var(--color-border);
    padding: 60px 0 0;
}

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

.footer-brand .logo-text {
    font-size: 1.4rem;
    margin-bottom: 12px;
    display: block;
}

.footer-desc {
    font-size: 0.88rem;
    color: #666;
    line-height: 1.7;
    margin-bottom: 20px;
}

.footer-social {
    display: flex;
    gap: 10px;
}

.social-link {
    width: 36px;
    height: 36px;
    background: var(--color-mid);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #888;
    font-size: 0.9rem;
    transition: all var(--transition);
    text-decoration: none;
}

.social-link:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
    transform: translateY(-2px);
}

.footer-col h4 {
    color: var(--color-white);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--color-border);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer-links a {
    color: #666;
    font-size: 0.88rem;
    transition: color var(--transition);
}

.footer-links a:hover {
    color: var(--color-primary);
    padding-left: 4px;
}

.footer-contact-item {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    margin-bottom: 10px;
    font-size: 0.88rem;
    color: #666;
}

.footer-contact-item .icon {
    color: var(--color-primary);
    flex-shrink: 0;
    margin-top: 2px;
}

.footer-bottom {
    border-top: 1px solid var(--color-border);
    padding: 20px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-copyright {
    font-size: 0.85rem;
    color: #555;
}

.footer-copyright a {
    color: #666;
}

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

.footer-icp {
    font-size: 0.8rem;
    color: #444;
}

.footer-update {
    font-size: 0.8rem;
    color: #444;
}

/* ---- 娱乐专区 ---- */
.entertainment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 24px;
}

.ent-card {
    background: var(--color-mid);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    overflow: hidden;
    transition: all var(--transition);
}

.ent-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-accent);
    box-shadow: 0 10px 30px rgba(245,166,35,0.15);
}

.ent-thumb {
    position: relative;
    height: 180px;
    overflow: hidden;
}

.ent-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.ent-card:hover .ent-thumb img {
    transform: scale(1.08);
}

.ent-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
}

.ent-category {
    position: absolute;
    top: 10px;
    left: 10px;
    background: var(--color-accent);
    color: var(--color-dark);
    font-size: 0.72rem;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 4px;
}

.ent-body {
    padding: 16px;
}

.ent-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: 8px;
    line-height: 1.4;
}

.ent-meta {
    font-size: 0.8rem;
    color: #666;
}

/* ---- 加入社区 ---- */
.join-section {
    background: linear-gradient(135deg, var(--color-primary) 0%, #8B1A00 100%);
    position: relative;
    overflow: hidden;
}

.join-section::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 400px;
    height: 400px;
    background: rgba(255,255,255,0.05);
    border-radius: 50%;
}

.join-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.join-title {
    font-size: 2.2rem;
    font-weight: 900;
    color: white;
    margin-bottom: 1rem;
}

.join-desc {
    color: rgba(255,255,255,0.85);
    font-size: 1.05rem;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.join-steps {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.join-step {
    text-align: center;
    color: white;
}

.step-num {
    width: 48px;
    height: 48px;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 900;
    margin: 0 auto 10px;
    border: 2px solid rgba(255,255,255,0.4);
}

.step-label {
    font-size: 0.88rem;
    opacity: 0.9;
}

/* ---- 通用背景区块 ---- */
.bg-mid {
    background: var(--color-mid);
}

.bg-dark {
    background: var(--color-dark);
}

.bg-gradient {
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-dark) 100%);
}

/* ---- 标签 ---- */
.tag {
    display: inline-block;
    background: rgba(232,64,10,0.12);
    border: 1px solid rgba(232,64,10,0.25);
    color: var(--color-primary);
    font-size: 0.75rem;
    padding: 3px 10px;
    border-radius: 20px;
    margin: 3px;
    font-weight: 500;
}

.tag-accent {
    background: rgba(245,166,35,0.12);
    border-color: rgba(245,166,35,0.25);
    color: var(--color-accent);
}

/* ---- 内页 Hero ---- */
.inner-hero {
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-dark) 100%);
    padding: 60px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.inner-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('../images/workshop-bg.jpg') center/cover no-repeat;
    opacity: 0.1;
}

.inner-hero-content {
    position: relative;
    z-index: 1;
}

.inner-hero h1 {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--color-white);
    margin-bottom: 0.8rem;
}

.inner-hero h1 span {
    color: var(--color-primary);
}

.inner-hero p {
    color: #888;
    font-size: 1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* ---- 分页 ---- */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 40px;
}

.page-btn {
    width: 40px;
    height: 40px;
    background: var(--color-mid);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #888;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
}

.page-btn:hover,
.page-btn.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

/* ---- 加载动画 ---- */
.lazy-load {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.lazy-load.loaded {
    opacity: 1;
    transform: translateY(0);
}

/* ---- 响应式 ---- */
@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    .ai-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(13,13,13,0.98);
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--color-border);
        gap: 4px;
    }
    .main-nav.open {
        display: flex;
    }
    .main-nav a {
        padding: 12px 16px;
        border-radius: 8px;
    }
    .hamburger {
        display: flex;
    }
    .header-inner {
        position: relative;
    }
    .hero-title {
        font-size: 2.2rem;
    }
    .hero-stats {
        gap: 24px;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    .section-pad {
        padding: 50px 0;
    }
    .join-steps {
        gap: 24px;
    }
    .ai-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-btns {
        flex-direction: column;
    }
    .hero-btns .btn {
        width: 100%;
        text-align: center;
    }
    .video-grid {
        grid-template-columns: 1fr;
    }
    .reviews-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   新增样式：TikTok短视频卡片 / EEAT权威栏 / H5视频弹窗
   ============================================ */

/* ---- TikTok风格竖屏短视频卡片 ---- */
.shorts-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.short-card {
    border-radius: 14px;
    overflow: hidden;
    cursor: pointer;
    position: relative;
    transition: transform var(--transition), box-shadow var(--transition);
}

.short-card:hover {
    transform: translateY(-6px) scale(1.02);
    box-shadow: 0 16px 40px rgba(232,64,10,0.25);
}

.short-thumb {
    position: relative;
    padding-top: 177.78%; /* 9:16 竖屏比例 */
    overflow: hidden;
    background: #111;
    border-radius: 14px;
}

.short-thumb img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.short-card:hover .short-thumb img {
    transform: scale(1.08);
}

.short-thumb .video-preview {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 1;
}

.short-card:hover .short-thumb .video-preview {
    opacity: 1;
}

.short-play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.7);
    width: 52px;
    height: 52px;
    background: rgba(232,64,10,0.92);
    border-radius: 50%;
    opacity: 0;
    transition: all var(--transition);
    z-index: 4;
    pointer-events: none;
}

.short-play-btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 54%;
    transform: translate(-50%, -50%);
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 9px 0 9px 16px;
    border-color: transparent transparent transparent white;
}

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

.short-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 40px 12px 14px;
    background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, transparent 100%);
    z-index: 3;
}

.short-tag {
    display: inline-block;
    background: var(--color-primary);
    color: white;
    font-size: 0.68rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 4px;
    margin-bottom: 6px;
}

.short-title {
    font-size: 0.82rem;
    font-weight: 600;
    color: white;
    line-height: 1.35;
    margin-bottom: 6px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.short-stats {
    display: flex;
    gap: 10px;
    font-size: 0.72rem;
    color: rgba(255,255,255,0.75);
}

.short-duration {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(0,0,0,0.75);
    color: white;
    font-size: 0.72rem;
    padding: 2px 7px;
    border-radius: 4px;
    z-index: 4;
}

/* ---- video-preview 在横屏卡片中 ---- */
.video-thumb .video-preview {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 1;
}

.video-card:hover .video-thumb .video-preview {
    opacity: 1;
}

/* ---- EEAT 权威性横栏 ---- */
.eeat-authority-bar {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
    padding: 20px;
    background: rgba(245,166,35,0.06);
    border: 1px solid rgba(245,166,35,0.2);
    border-radius: 12px;
}

.eeat-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: #aaa;
    padding: 6px 14px;
    background: rgba(255,255,255,0.03);
    border-radius: 20px;
    border: 1px solid var(--color-border);
    white-space: nowrap;
}

.eeat-icon {
    font-size: 1rem;
}

/* ---- H5 视频弹窗播放器 ---- */
.video-modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.94);
    z-index: 10000;
    align-items: center;
    justify-content: center;
    padding: 20px;
    backdrop-filter: blur(4px);
}

.video-modal.active {
    display: flex;
}

.video-modal-inner {
    background: var(--color-mid);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    width: 100%;
    max-width: 860px;
    padding: 24px;
    position: relative;
    box-shadow: 0 30px 80px rgba(0,0,0,0.7);
}

.video-modal-close {
    position: absolute;
    top: 14px;
    right: 14px;
    background: rgba(255,255,255,0.1);
    border: none;
    color: white;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition);
    z-index: 2;
}

.video-modal-close:hover {
    background: var(--color-primary);
}

.video-modal-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 16px;
    padding-right: 40px;
    line-height: 1.4;
}

.video-modal-player {
    border-radius: 10px;
    overflow: hidden;
    background: #000;
    margin-bottom: 14px;
    position: relative;
}

/* 无视频源时显示占位内容 */
.video-modal-player::before {
    content: '';
    display: block;
    padding-top: 56.25%;
}

.video-modal-player video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.video-modal-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 0.82rem;
    color: #666;
}

/* 无视频源时的占位提示 */
.video-no-source {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 14px;
    background: #0a0a0a;
    color: #555;
    font-size: 0.9rem;
    text-align: center;
    padding: 20px;
    z-index: 1;
}

.video-no-source .play-icon {
    font-size: 3.5rem;
    color: var(--color-primary);
    opacity: 0.7;
}

/* ---- ai-badge ---- */
.ai-badge {
    display: inline-block;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    color: white;
    font-size: 0.72rem;
    font-weight: 700;
    padding: 4px 14px;
    border-radius: 4px;
    margin-top: 10px;
    letter-spacing: 1px;
}

/* ---- qr-placeholder ---- */
.qr-placeholder {
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        45deg,
        #ddd,
        #ddd 2px,
        #fff 2px,
        #fff 8px
    );
    border-radius: 4px;
    opacity: 0.4;
}

/* ---- 响应式补充 ---- */
@media (max-width: 900px) {
    .shorts-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .shorts-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    .eeat-authority-bar {
        flex-direction: column;
        align-items: flex-start;
    }
    .video-modal-inner {
        padding: 16px;
    }
}