/* ============================================
   17c一起草 - 原创样式表
   品牌：17c一起草 | 域名：lz293157.cn
   定位：国内影视传媒公司 + 动漫社区
   ============================================ */

/* === 基础重置与变量 === */
:root {
  --primary-dark: #1A0A2E;
  --accent-orange: #FF6B35;
  --accent-mint: #00D4AA;
  --bg-deep: #0D0D1A;
  --card-bg: #1E1E3A;
  --card-hover: #2A2A50;
  --text-light: #E8E8F0;
  --text-muted: #9B9BB8;
  --gradient-main: linear-gradient(135deg, #FF6B35, #FF3CAC, #784BA0);
  --gradient-card: linear-gradient(145deg, #1E1E3A, #2A1A4A);
  --gradient-hero: linear-gradient(160deg, #0D0D1A 0%, #1A0A2E 40%, #2D1B69 100%);
  --shadow-card: 0 8px 32px rgba(0,0,0,0.3);
  --shadow-hover: 0 12px 48px rgba(255,107,53,0.15);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1280px;
}

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

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

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
  background-color: var(--bg-deep);
  color: var(--text-light);
  line-height: 1.7;
  overflow-x: hidden;
}

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

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

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* === 顶部导航 === */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(13, 13, 26, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 107, 53, 0.12);
  transition: var(--transition);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

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

.site-logo img {
  height: 40px;
  width: auto;
}

.site-logo-text {
  font-size: 1.4rem;
  font-weight: 700;
  background: var(--gradient-main);
  -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);
  position: relative;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--accent-orange);
  background: rgba(255, 107, 53, 0.08);
}

.main-nav a.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 3px;
  background: var(--accent-orange);
  border-radius: 2px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-light);
  border-radius: 2px;
  transition: var(--transition);
}

/* === 搜索框 === */
.search-bar-wrap {
  background: rgba(30, 30, 58, 0.6);
  border-bottom: 1px solid rgba(255, 107, 53, 0.08);
  padding: 12px 0;
  margin-top: 68px;
}

.search-bar {
  display: flex;
  align-items: center;
  max-width: 640px;
  margin: 0 auto;
  background: var(--card-bg);
  border: 1px solid rgba(255, 107, 53, 0.2);
  border-radius: 40px;
  overflow: hidden;
  transition: var(--transition);
}

.search-bar:focus-within {
  border-color: var(--accent-orange);
  box-shadow: 0 0 20px rgba(255, 107, 53, 0.15);
}

.search-bar input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  padding: 12px 20px;
  color: var(--text-light);
  font-size: 0.95rem;
}

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

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

.search-bar button:hover {
  opacity: 0.9;
}

/* === Hero区域 === */
.hero-section {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: var(--gradient-hero);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.35;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(13,13,26,0.5) 0%, rgba(13,13,26,0.85) 100%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 80px 24px 60px;
  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-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-content p {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 32px;
  line-height: 1.8;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-bottom: 32px;
}

.hero-tags span {
  background: rgba(255, 107, 53, 0.12);
  color: var(--accent-orange);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  border: 1px solid rgba(255, 107, 53, 0.2);
}

.hero-btn {
  display: inline-block;
  padding: 14px 40px;
  background: var(--gradient-main);
  color: #fff;
  border-radius: 40px;
  font-size: 1.05rem;
  font-weight: 600;
  transition: var(--transition);
  box-shadow: 0 4px 24px rgba(255, 107, 53, 0.3);
}

.hero-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 36px rgba(255, 107, 53, 0.4);
  color: #fff;
}

/* === 通用区块标题 === */
.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: 48px;
  height: 3px;
  background: var(--gradient-main);
  border-radius: 2px;
}

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

/* === 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(--gradient-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(255, 107, 53, 0.06);
}

.video-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(255, 107, 53, 0.15);
}

.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
}

.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.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);
  width: 60px;
  height: 60px;
  background: rgba(255, 107, 53, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  opacity: 0;
}

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

.video-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: 4px;
}

.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.75);
  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: 0.82rem;
}

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

.video-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}

.video-tags span {
  background: rgba(0, 212, 170, 0.1);
  color: var(--accent-mint);
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 0.75rem;
}

/* === 服务模块 === */
.services-section {
  padding: 80px 0;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 28px;
}

.service-card {
  background: var(--gradient-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  border: 1px solid rgba(255, 107, 53, 0.06);
}

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

.service-card-img {
  height: 200px;
  overflow: hidden;
}

.service-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.service-card-body {
  padding: 24px;
}

.service-card-body h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.service-card-body p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* === 专家展示 === */
.experts-section {
  padding: 80px 0;
  background: rgba(26, 10, 46, 0.3);
}

.experts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 24px;
}

.expert-card {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 28px 20px;
  text-align: center;
  transition: var(--transition);
  border: 1px solid rgba(255, 107, 53, 0.06);
}

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

.expert-avatar {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  margin: 0 auto 16px;
  overflow: hidden;
  border: 3px solid rgba(255, 107, 53, 0.3);
}

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

.expert-card h4 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.expert-card .expert-title {
  color: var(--accent-orange);
  font-size: 0.85rem;
  margin-bottom: 10px;
}

.expert-card p {
  color: var(--text-muted);
  font-size: 0.85rem;
  line-height: 1.6;
  margin-bottom: 16px;
}

.expert-btns {
  display: flex;
  gap: 8px;
  justify-content: center;
}

.btn-sm {
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
  transition: var(--transition);
  cursor: pointer;
}

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

.btn-outline:hover {
  background: var(--accent-orange);
  color: #fff;
}

.btn-fill {
  background: var(--accent-orange);
  color: #fff;
  border: 1px solid var(--accent-orange);
}

.btn-fill:hover {
  background: #e55a28;
}

/* === 合作品牌 === */
.partners-section {
  padding: 60px 0;
}

.partners-wall {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: center;
  align-items: center;
}

.partner-logo {
  width: 140px;
  height: 70px;
  background: var(--card-bg);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
  transition: var(--transition);
  border: 1px solid rgba(255, 107, 53, 0.06);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.partner-logo:hover {
  border-color: var(--accent-orange);
  box-shadow: 0 4px 16px rgba(255, 107, 53, 0.1);
}

/* === 用户评论 === */
.reviews-section {
  padding: 80px 0;
}

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

.review-card {
  background: var(--gradient-card);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: var(--transition);
  border: 1px solid rgba(255, 107, 53, 0.06);
}

.review-card:hover {
  border-color: rgba(255, 107, 53, 0.15);
}

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

.review-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.review-user-info h5 {
  font-size: 0.95rem;
  font-weight: 600;
}

.review-user-info .review-date {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.review-stars {
  color: #FFD700;
  font-size: 0.9rem;
  margin-bottom: 10px;
}

.review-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* === FAQ === */
.faq-section {
  padding: 80px 0;
  background: rgba(26, 10, 46, 0.2);
}

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

.faq-item {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  border: 1px solid rgba(255, 107, 53, 0.06);
  transition: var(--transition);
}

.faq-item:hover {
  border-color: rgba(255, 107, 53, 0.15);
}

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

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

.faq-question .faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(255, 107, 53, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: transform 0.3s ease;
  flex-shrink: 0;
  color: var(--accent-orange);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

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

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

.faq-answer-inner {
  padding: 0 24px 18px;
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.8;
}

/* === 联系我们 === */
.contact-section {
  padding: 80px 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.contact-card {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 28px;
  text-align: center;
  transition: var(--transition);
  border: 1px solid rgba(255, 107, 53, 0.06);
}

.contact-card:hover {
  border-color: var(--accent-orange);
}

.contact-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(255, 107, 53, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 1.5rem;
}

.contact-card h4 {
  font-size: 1rem;
  margin-bottom: 8px;
}

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

/* === How-To指南 === */
.howto-section {
  padding: 60px 0;
}

.howto-steps {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
  counter-reset: step;
}

.howto-step {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 28px;
  position: relative;
  counter-increment: step;
  transition: var(--transition);
  border: 1px solid rgba(255, 107, 53, 0.06);
}

.howto-step::before {
  content: counter(step);
  position: absolute;
  top: -12px;
  left: 24px;
  width: 32px;
  height: 32px;
  background: var(--gradient-main);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  color: #fff;
}

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

.howto-step p {
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.7;
}

/* === 社交分享 === */
.share-bar {
  display: flex;
  gap: 12px;
  justify-content: center;
  padding: 20px 0;
}

.share-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  color: #fff;
}

.share-btn.wechat { background: #07C160; }
.share-btn.weibo { background: #E6162D; }
.share-btn.douyin { background: #161823; border: 1px solid #333; }
.share-btn.bilibili { background: #00A1D6; }

.share-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.3);
}

/* === 页脚 === */
.site-footer {
  background: #080812;
  border-top: 1px solid rgba(255, 107, 53, 0.08);
  padding: 48px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 32px;
  margin-bottom: 32px;
}

.footer-col h5 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-light);
}

.footer-col p,
.footer-col a {
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 2;
  display: block;
}

.footer-col a:hover {
  color: var(--accent-orange);
}

.footer-qr {
  display: flex;
  gap: 20px;
}

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

.footer-qr-item img {
  width: 100px;
  height: 100px;
  border-radius: var(--radius-sm);
  margin-bottom: 6px;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 107, 53, 0.06);
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer-bottom p {
  margin-bottom: 4px;
}

/* === 面包屑 === */
.breadcrumb {
  padding: 16px 0;
  font-size: 0.88rem;
  color: var(--text-muted);
}

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

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

.breadcrumb span {
  margin: 0 8px;
  opacity: 0.5;
}

/* === 内页通用 === */
.page-hero {
  padding: 120px 0 40px;
  text-align: center;
  background: var(--gradient-hero);
}

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

.page-hero p {
  color: var(--text-muted);
  font-size: 1rem;
}

.page-content {
  padding: 60px 0;
}

/* === 动画效果 === */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* === 统计数据条 === */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding: 40px 0;
}

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

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

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

/* === 标签云 === */
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  padding: 20px 0;
}

.tag-cloud a {
  background: var(--card-bg);
  color: var(--text-muted);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  transition: var(--transition);
  border: 1px solid rgba(255, 107, 53, 0.06);
}

.tag-cloud a:hover {
  background: rgba(255, 107, 53, 0.1);
  color: var(--accent-orange);
  border-color: rgba(255, 107, 53, 0.2);
}

/* === 通用间距 === */
.section-padding {
  padding: 80px 0;
}

.mb-20 { margin-bottom: 20px; }
.mb-40 { margin-bottom: 40px; }
.mt-20 { margin-top: 20px; }
.mt-40 { margin-top: 40px; }

/* === 响应式设计 === */
@media (max-width: 1024px) {
  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    background: rgba(13, 13, 26, 0.98);
    flex-direction: column;
    padding: 20px;
    gap: 4px;
    transform: translateY(-120%);
    transition: transform 0.35s ease;
    border-bottom: 1px solid rgba(255, 107, 53, 0.1);
  }

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

  .main-nav a {
    padding: 12px 16px;
    width: 100%;
    text-align: center;
  }

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

  .hero-content p {
    font-size: 1rem;
  }

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

  .video-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 16px;
  }

  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .stat-number {
    font-size: 1.6rem;
  }

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

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

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

  .page-hero {
    padding: 100px 0 30px;
  }

  .page-hero h1 {
    font-size: 1.6rem;
  }
}

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

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

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

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

  .search-bar {
    margin: 0 12px;
  }
}

/* === 懒加载占位 === */
img[data-src] {
  opacity: 0;
  transition: opacity 0.5s ease;
}

img[data-src].loaded {
  opacity: 1;
}

/* === 内容区域特殊样式 === */
.content-article {
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.9;
}

.content-article h2 {
  font-size: 1.5rem;
  margin: 32px 0 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid rgba(255, 107, 53, 0.15);
}

.content-article h3 {
  font-size: 1.2rem;
  margin: 24px 0 12px;
  color: var(--accent-orange);
}

.content-article p {
  margin-bottom: 16px;
  color: var(--text-muted);
}

.content-article ul,
.content-article ol {
  margin: 16px 0;
  padding-left: 24px;
  color: var(--text-muted);
}

.content-article li {
  margin-bottom: 8px;
}

/* === 特色功能卡片 === */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--gradient-card);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: var(--transition);
  border: 1px solid rgba(255, 107, 53, 0.06);
}

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

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background: rgba(255, 107, 53, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 16px;
}

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

.feature-card p {
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.7;
}