/*
 * 蘑菇视频 影视传媒视频社区 - 原创样式表
 * 域名: 17cshipin1.com
 * 原创配色：暖金红+深紫渐变主题
 */

/* ===== CSS Reset & Base ===== */
*, *::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; color: #1A1A2E; background: #F8F5F0; line-height: 1.7; overflow-x: hidden; }
a { text-decoration: none; color: inherit; transition: color .25s; }
a:hover { color: #C8102E; }
ul, ol { list-style: none; }
img { max-width: 100%; height: auto; display: block; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ===== 原创配色变量 ===== */
:root {
    --n4671ul-red: #C8102E;
    --n4671ul-gold: #FFB347;
    --n4671ul-purple: #6C3483;
    --n4671ul-dark: #0D0D1A;
    --n4671ul-warm-white: #F8F5F0;
    --n4671ul-text: #1A1A2E;
    --n4671ul-text-light: #E8D5BF;
    --n4671ul-gradient: linear-gradient(135deg, #C8102E, #6C3483);
    --n4671ul-gradient-gold: linear-gradient(135deg, #FFB347, #C8102E);
    --n4671ul-shadow: 0 8px 32px rgba(13, 13, 26, 0.12);
    --n4671ul-shadow-hover: 0 12px 48px rgba(200, 16, 46, 0.2);
    --n4671ul-radius: 12px;
}

/* ===== 顶部导航 ===== */
.n4671ul-header { position: fixed; top: 0; left: 0; width: 100%; z-index: 1000; background: rgba(13, 13, 26, 0.95); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(255, 179, 71, 0.15); transition: all .3s; }
.n4671ul-header .container { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.n4671ul-logo { display: flex; align-items: center; gap: 10px; }
.n4671ul-logo img { height: 42px; width: auto; }
.n4671ul-logo span { font-size: 1.3rem; font-weight: 700; background: var(--n4671ul-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.n4671ul-nav { display: flex; align-items: center; gap: 28px; }
.n4671ul-nav a { color: var(--n4671ul-text-light); font-size: 0.95rem; font-weight: 500; position: relative; padding: 4px 0; }
.n4671ul-nav a::after { content: ''; position: absolute; bottom: -2px; left: 0; width: 0; height: 2px; background: var(--n4671ul-gradient); transition: width .3s; }
.n4671ul-nav a:hover::after, .n4671ul-nav a.active::after { width: 100%; }
.n4671ul-nav a:hover { color: #fff; }

/* 搜索框 */
.n4671ul-search-bar { background: rgba(13, 13, 26, 0.6); padding: 12px 0; border-bottom: 1px solid rgba(255, 179, 71, 0.1); margin-top: 68px; }
.n4671ul-search-bar .container { display: flex; justify-content: center; }
.n4671ul-search-wrap { display: flex; max-width: 600px; width: 100%; background: rgba(255, 255, 255, 0.08); border-radius: 30px; overflow: hidden; border: 1px solid rgba(255, 179, 71, 0.2); }
.n4671ul-search-wrap input { flex: 1; padding: 10px 20px; background: transparent; border: none; color: #fff; font-size: 0.95rem; outline: none; }
.n4671ul-search-wrap input::placeholder { color: rgba(232, 213, 191, 0.5); }
.n4671ul-search-wrap button { padding: 10px 24px; background: var(--n4671ul-gradient); color: #fff; border: none; cursor: pointer; font-size: 0.95rem; font-weight: 600; transition: opacity .3s; }
.n4671ul-search-wrap button:hover { opacity: 0.85; }

/* 移动端菜单按钮 */
.n4671ul-menu-btn { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 5px; }
.n4671ul-menu-btn span { width: 24px; height: 2px; background: var(--n4671ul-text-light); transition: all .3s; }

/* ===== Hero Banner ===== */
.n4671ul-hero { position: relative; height: 75vh; min-height: 480px; overflow: hidden; display: flex; align-items: center; }
.n4671ul-hero-bg { position: absolute; inset: 0; }
.n4671ul-hero-bg img { width: 100%; height: 100%; object-fit: cover; }
.n4671ul-hero-overlay { position: absolute; inset: 0; background: linear-gradient(135deg, rgba(13, 13, 26, 0.8), rgba(108, 52, 131, 0.5)); }
.n4671ul-hero-content { position: relative; z-index: 2; max-width: 680px; padding: 0 40px; }
.n4671ul-hero-content h1 { font-size: 2.8rem; font-weight: 800; color: #fff; line-height: 1.3; margin-bottom: 16px; }
.n4671ul-hero-content h1 .highlight { background: var(--n4671ul-gradient-gold); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.n4671ul-hero-content p { font-size: 1.1rem; color: rgba(255, 255, 255, 0.85); margin-bottom: 28px; line-height: 1.8; }
.n4671ul-hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }
.n4671ul-btn-primary { display: inline-flex; align-items: center; gap: 8px; padding: 12px 32px; background: var(--n4671ul-gradient); color: #fff; border-radius: 30px; font-weight: 600; font-size: 1rem; transition: transform .3s, box-shadow .3s; border: none; cursor: pointer; }
.n4671ul-btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(200, 16, 46, 0.4); color: #fff; }
.n4671ul-btn-outline { display: inline-flex; align-items: center; gap: 8px; padding: 12px 32px; background: transparent; color: #fff; border: 2px solid rgba(255, 179, 71, 0.6); border-radius: 30px; font-weight: 600; font-size: 1rem; transition: all .3s; cursor: pointer; }
.n4671ul-btn-outline:hover { background: rgba(255, 179, 71, 0.15); border-color: var(--n4671ul-gold); color: #fff; }

/* ===== 通用Section ===== */
.n4671ul-section { padding: 72px 0; }
.n4671ul-section-dark { background: var(--n4671ul-dark); color: var(--n4671ul-text-light); }
.n4671ul-section-alt { background: #F0EBE3; }
.n4671ul-section-gradient { background: linear-gradient(180deg, var(--n4671ul-dark) 0%, #1A1035 100%); color: var(--n4671ul-text-light); }
.n4671ul-section-title { text-align: center; margin-bottom: 48px; }
.n4671ul-section-title h2 { font-size: 2rem; font-weight: 700; margin-bottom: 12px; }
.n4671ul-section-title h2 .accent { color: var(--n4671ul-red); }
.n4671ul-section-dark .n4671ul-section-title h2 { color: #fff; }
.n4671ul-section-title p { font-size: 1.05rem; color: #666; max-width: 600px; margin: 0 auto; }
.n4671ul-section-dark .n4671ul-section-title p { color: rgba(232, 213, 191, 0.7); }
.n4671ul-tag { display: inline-block; padding: 4px 14px; background: var(--n4671ul-gradient); color: #fff; border-radius: 20px; font-size: 0.8rem; font-weight: 600; margin-bottom: 12px; }

/* ===== 影视传媒服务卡片 ===== */
.n4671ul-services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.n4671ul-service-card { background: #fff; border-radius: var(--n4671ul-radius); padding: 32px 24px; text-align: center; box-shadow: var(--n4671ul-shadow); transition: transform .3s, box-shadow .3s; border: 1px solid rgba(0,0,0,0.04); }
.n4671ul-service-card:hover { transform: translateY(-6px); box-shadow: var(--n4671ul-shadow-hover); }
.n4671ul-service-icon { width: 64px; height: 64px; margin: 0 auto 16px; background: var(--n4671ul-gradient); border-radius: 16px; display: flex; align-items: center; justify-content: center; font-size: 1.8rem; color: #fff; }
.n4671ul-service-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 10px; color: var(--n4671ul-text); }
.n4671ul-service-card p { font-size: 0.9rem; color: #666; line-height: 1.6; }

/* ===== 视频卡片网格 ===== */
.n4671ul-video-tags { display: flex; justify-content: center; gap: 12px; margin-bottom: 32px; flex-wrap: wrap; }
.n4671ul-video-tag { padding: 6px 20px; border-radius: 20px; font-size: 0.88rem; font-weight: 500; cursor: pointer; transition: all .3s; background: rgba(200, 16, 46, 0.08); color: var(--n4671ul-red); border: 1px solid transparent; }
.n4671ul-video-tag:hover, .n4671ul-video-tag.active { background: var(--n4671ul-gradient); color: #fff; }
.n4671ul-video-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.n4671ul-video-card { background: #fff; border-radius: var(--n4671ul-radius); overflow: hidden; box-shadow: var(--n4671ul-shadow); transition: transform .3s, box-shadow .3s; cursor: pointer; }
.n4671ul-video-card:hover { transform: translateY(-4px); box-shadow: var(--n4671ul-shadow-hover); }
.n4671ul-video-thumb { position: relative; padding-top: 56.25%; overflow: hidden; }
.n4671ul-video-thumb img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.n4671ul-video-card:hover .n4671ul-video-thumb img { transform: scale(1.06); }
.n4671ul-video-play { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 52px; height: 52px; background: rgba(200, 16, 46, 0.85); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 1.2rem; transition: transform .3s, background .3s; }
.n4671ul-video-card:hover .n4671ul-video-play { transform: translate(-50%, -50%) scale(1.1); background: var(--n4671ul-red); }
.n4671ul-video-duration { position: absolute; bottom: 8px; right: 8px; background: rgba(0,0,0,0.7); color: #fff; padding: 2px 8px; border-radius: 4px; font-size: 0.78rem; }
.n4671ul-video-info { padding: 16px; }
.n4671ul-video-info h4 { font-size: 0.98rem; font-weight: 600; margin-bottom: 8px; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.n4671ul-video-meta { display: flex; align-items: center; gap: 16px; font-size: 0.8rem; color: #999; }
.n4671ul-video-meta span { display: flex; align-items: center; gap: 4px; }

/* ===== 娱乐专区 ===== */
.n4671ul-entertainment-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.n4671ul-ent-card { position: relative; border-radius: var(--n4671ul-radius); overflow: hidden; height: 260px; cursor: pointer; }
.n4671ul-ent-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.n4671ul-ent-card:hover img { transform: scale(1.05); }
.n4671ul-ent-overlay { position: absolute; inset: 0; background: linear-gradient(to top, rgba(13, 13, 26, 0.85) 0%, transparent 60%); display: flex; flex-direction: column; justify-content: flex-end; padding: 24px; }
.n4671ul-ent-overlay h3 { color: #fff; font-size: 1.25rem; font-weight: 700; margin-bottom: 6px; }
.n4671ul-ent-overlay p { color: rgba(255, 255, 255, 0.75); font-size: 0.88rem; }

/* ===== AI赋能 ===== */
.n4671ul-ai-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.n4671ul-ai-card { background: rgba(255, 255, 255, 0.05); border: 1px solid rgba(255, 179, 71, 0.15); border-radius: var(--n4671ul-radius); padding: 32px 24px; text-align: center; transition: all .3s; }
.n4671ul-ai-card:hover { background: rgba(255, 179, 71, 0.08); border-color: var(--n4671ul-gold); transform: translateY(-4px); }
.n4671ul-ai-icon { font-size: 2.5rem; margin-bottom: 16px; }
.n4671ul-ai-card h3 { font-size: 1.1rem; font-weight: 700; color: #fff; margin-bottom: 10px; }
.n4671ul-ai-card p { font-size: 0.9rem; color: rgba(232, 213, 191, 0.7); line-height: 1.6; }

/* ===== 社区功能 ===== */
.n4671ul-community-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.n4671ul-comm-card { background: #fff; border-radius: var(--n4671ul-radius); padding: 24px 16px; text-align: center; box-shadow: var(--n4671ul-shadow); transition: all .3s; border-top: 3px solid transparent; }
.n4671ul-comm-card:hover { border-top-color: var(--n4671ul-red); transform: translateY(-4px); }
.n4671ul-comm-icon { font-size: 2rem; margin-bottom: 12px; }
.n4671ul-comm-card h4 { font-size: 0.95rem; font-weight: 600; margin-bottom: 6px; }
.n4671ul-comm-card p { font-size: 0.82rem; color: #888; }

/* ===== 专家团队 ===== */
.n4671ul-experts-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.n4671ul-expert-card { background: #fff; border-radius: var(--n4671ul-radius); overflow: hidden; box-shadow: var(--n4671ul-shadow); transition: transform .3s; }
.n4671ul-expert-card:hover { transform: translateY(-4px); }
.n4671ul-expert-photo { width: 100%; height: 280px; object-fit: cover; }
.n4671ul-expert-info { padding: 20px; text-align: center; }
.n4671ul-expert-info h4 { font-size: 1.1rem; font-weight: 700; margin-bottom: 4px; }
.n4671ul-expert-info .role { color: var(--n4671ul-red); font-size: 0.88rem; font-weight: 500; margin-bottom: 10px; }
.n4671ul-expert-info p { font-size: 0.85rem; color: #666; line-height: 1.6; margin-bottom: 14px; }
.n4671ul-expert-btns { display: flex; gap: 10px; justify-content: center; }
.n4671ul-expert-btns a { padding: 6px 16px; border-radius: 20px; font-size: 0.82rem; font-weight: 500; transition: all .3s; }
.n4671ul-expert-btns .btn-contact { background: var(--n4671ul-gradient); color: #fff; }
.n4671ul-expert-btns .btn-works { background: rgba(108, 52, 131, 0.1); color: var(--n4671ul-purple); }
.n4671ul-expert-btns a:hover { opacity: 0.85; color: #fff; }

/* ===== 合作品牌墙 ===== */
.n4671ul-brands-wall { display: flex; flex-wrap: wrap; justify-content: center; gap: 32px; align-items: center; }
.n4671ul-brand-item { padding: 16px 28px; background: #fff; border-radius: 8px; box-shadow: 0 2px 12px rgba(0,0,0,0.06); font-size: 1rem; font-weight: 600; color: #555; transition: all .3s; border: 1px solid rgba(0,0,0,0.04); }
.n4671ul-brand-item:hover { box-shadow: var(--n4671ul-shadow-hover); color: var(--n4671ul-red); }

/* ===== How-To步骤 ===== */
.n4671ul-steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.n4671ul-step-card { text-align: center; position: relative; }
.n4671ul-step-num { width: 56px; height: 56px; margin: 0 auto 16px; background: var(--n4671ul-gradient); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.4rem; font-weight: 800; color: #fff; }
.n4671ul-step-card h4 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.n4671ul-step-card p { font-size: 0.88rem; color: #666; }

/* ===== FAQ ===== */
.n4671ul-faq-list { max-width: 800px; margin: 0 auto; }
.n4671ul-faq-item { background: #fff; border-radius: var(--n4671ul-radius); margin-bottom: 12px; box-shadow: 0 2px 12px rgba(0,0,0,0.04); overflow: hidden; border: 1px solid rgba(0,0,0,0.04); }
.n4671ul-faq-q { padding: 18px 24px; font-weight: 600; font-size: 0.98rem; cursor: pointer; display: flex; justify-content: space-between; align-items: center; transition: background .3s; }
.n4671ul-faq-q:hover { background: rgba(200, 16, 46, 0.03); }
.n4671ul-faq-q .arrow { transition: transform .3s; font-size: 0.8rem; color: var(--n4671ul-red); }
.n4671ul-faq-item.open .n4671ul-faq-q .arrow { transform: rotate(180deg); }
.n4671ul-faq-a { padding: 0 24px; max-height: 0; overflow: hidden; transition: max-height .4s ease, padding .4s; font-size: 0.9rem; color: #666; line-height: 1.7; }
.n4671ul-faq-item.open .n4671ul-faq-a { max-height: 300px; padding: 0 24px 18px; }

/* ===== 用户评价 ===== */
.n4671ul-reviews-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.n4671ul-review-card { background: #fff; border-radius: var(--n4671ul-radius); padding: 24px; box-shadow: var(--n4671ul-shadow); border-left: 4px solid var(--n4671ul-red); }
.n4671ul-review-stars { color: var(--n4671ul-gold); font-size: 0.9rem; margin-bottom: 10px; }
.n4671ul-review-text { font-size: 0.9rem; color: #555; line-height: 1.7; margin-bottom: 14px; font-style: italic; }
.n4671ul-review-author { display: flex; align-items: center; gap: 10px; }
.n4671ul-review-avatar { width: 36px; height: 36px; border-radius: 50%; background: var(--n4671ul-gradient); display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 700; font-size: 0.85rem; }
.n4671ul-review-name { font-size: 0.85rem; font-weight: 600; }
.n4671ul-review-date { font-size: 0.78rem; color: #999; }

/* ===== 社交分享 ===== */
.n4671ul-share-section { text-align: center; padding: 40px 0; }
.n4671ul-share-btns { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.n4671ul-share-btn { width: 48px; height: 48px; border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 1.1rem; font-weight: 700; transition: transform .3s, box-shadow .3s; }
.n4671ul-share-btn:hover { transform: translateY(-3px); box-shadow: 0 6px 20px rgba(0,0,0,0.2); color: #fff; }
.n4671ul-share-wechat { background: #07C160; }
.n4671ul-share-weibo { background: #E6162D; }
.n4671ul-share-douyin { background: #161823; }
.n4671ul-share-bilibili { background: #00A1D6; }

/* ===== 联系我们 ===== */
.n4671ul-contact-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.n4671ul-contact-card { text-align: center; padding: 24px 16px; }
.n4671ul-contact-card h4 { font-size: 0.95rem; font-weight: 700; color: #fff; margin-bottom: 12px; }
.n4671ul-contact-card p { font-size: 0.85rem; color: rgba(232, 213, 191, 0.7); line-height: 1.7; }
.n4671ul-contact-card a { color: var(--n4671ul-gold); }

/* ===== 页脚 ===== */
.n4671ul-footer { background: #080812; color: rgba(232, 213, 191, 0.6); padding: 48px 0 24px; }
.n4671ul-footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 32px; }
.n4671ul-footer-brand p { font-size: 0.88rem; line-height: 1.7; margin-top: 12px; }
.n4671ul-footer-links h5 { color: #fff; font-size: 0.95rem; margin-bottom: 14px; }
.n4671ul-footer-links a { display: block; font-size: 0.85rem; padding: 4px 0; transition: color .3s; }
.n4671ul-footer-links a:hover { color: var(--n4671ul-gold); }
.n4671ul-footer-qr { display: flex; gap: 16px; }
.n4671ul-footer-qr img { width: 100px; height: 100px; border-radius: 8px; }
.n4671ul-footer-qr-label { font-size: 0.78rem; text-align: center; margin-top: 6px; }
.n4671ul-footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.06); padding-top: 20px; text-align: center; font-size: 0.82rem; }
.n4671ul-footer-bottom a { color: var(--n4671ul-gold); }

/* ===== 内页通用 ===== */
.n4671ul-page-hero { padding: 120px 0 48px; background: var(--n4671ul-dark); text-align: center; }
.n4671ul-page-hero h1 { font-size: 2.2rem; color: #fff; font-weight: 700; margin-bottom: 12px; }
.n4671ul-page-hero p { color: rgba(232, 213, 191, 0.7); font-size: 1.05rem; }
.n4671ul-breadcrumb { padding: 16px 0; font-size: 0.85rem; color: #888; }
.n4671ul-breadcrumb a { color: var(--n4671ul-red); }
.n4671ul-content-section { padding: 48px 0; }
.n4671ul-content-section h2 { font-size: 1.6rem; font-weight: 700; margin-bottom: 20px; color: var(--n4671ul-text); }
.n4671ul-content-section h3 { font-size: 1.2rem; font-weight: 600; margin-bottom: 14px; color: var(--n4671ul-text); }
.n4671ul-content-section p { font-size: 0.95rem; color: #555; line-height: 1.8; margin-bottom: 16px; }

/* ===== 播放页 ===== */
.n4671ul-player-wrap { max-width: 900px; margin: 0 auto; padding: 100px 20px 48px; }
.n4671ul-player-video { width: 100%; aspect-ratio: 16/9; background: #000; border-radius: var(--n4671ul-radius); overflow: hidden; }
.n4671ul-player-video video { width: 100%; height: 100%; }
.n4671ul-player-info { padding: 24px 0; }
.n4671ul-player-info h1 { font-size: 1.5rem; font-weight: 700; margin-bottom: 12px; }
.n4671ul-player-stats { display: flex; gap: 24px; font-size: 0.88rem; color: #888; margin-bottom: 16px; }
.n4671ul-player-desc { font-size: 0.92rem; color: #555; line-height: 1.8; }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .n4671ul-services-grid, .n4671ul-ai-grid, .n4671ul-experts-grid, .n4671ul-reviews-grid { grid-template-columns: repeat(2, 1fr); }
    .n4671ul-community-grid, .n4671ul-steps-grid, .n4671ul-contact-grid { grid-template-columns: repeat(2, 1fr); }
    .n4671ul-footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
    .n4671ul-nav { display: none; position: fixed; top: 68px; left: 0; width: 100%; background: rgba(13, 13, 26, 0.98); flex-direction: column; padding: 20px; gap: 16px; }
    .n4671ul-nav.open { display: flex; }
    .n4671ul-menu-btn { display: flex; }
    .n4671ul-hero-content h1 { font-size: 1.8rem; }
    .n4671ul-hero { min-height: 400px; height: 60vh; }
    .n4671ul-hero-content { padding: 0 20px; }
    .n4671ul-services-grid, .n4671ul-video-grid, .n4671ul-entertainment-grid, .n4671ul-ai-grid, .n4671ul-experts-grid, .n4671ul-reviews-grid { grid-template-columns: 1fr; }
    .n4671ul-community-grid, .n4671ul-steps-grid { grid-template-columns: repeat(2, 1fr); }
    .n4671ul-contact-grid { grid-template-columns: 1fr; }
    .n4671ul-footer-grid { grid-template-columns: 1fr; }
    .n4671ul-section { padding: 48px 0; }
    .n4671ul-section-title h2 { font-size: 1.5rem; }
}
@media (max-width: 480px) {
    .n4671ul-community-grid, .n4671ul-steps-grid { grid-template-columns: 1fr; }
    .n4671ul-hero-btns { flex-direction: column; }
    .n4671ul-hero-btns a, .n4671ul-hero-btns button { width: 100%; justify-content: center; }
}

/* ===== 动画（纯 CSS，不依赖 JS） ===== */
@keyframes txFadeUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}
.n4671ul-section { animation: txFadeUp 0.6s ease both; }