/* ===================================================
    - 全站样式表
   域名: 
   =================================================== */

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

:root {
  --red: #e8001a;
  --red-dark: #b5001a;
  --red-light: #ff2244;
  --black: #111111;
  --dark: #1a1a1a;
  --dark2: #222222;
  --dark3: #2d2d2d;
  --gray: #888888;
  --gray-light: #cccccc;
  --white: #ffffff;
  --bg: #f5f5f5;
  --gold: #f5a623;
  --font: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  --radius: 8px;
  --shadow: 0 4px 20px rgba(0,0,0,0.15);
  --transition: all 0.3s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--black);
  font-size: 15px;
  line-height: 1.7;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--red); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

/* ===== 滚动条 ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--dark); }
::-webkit-scrollbar-thumb { background: var(--red); border-radius: 3px; }

/* ===== 顶部公告栏 ===== */
.c8cov6 {
  background: var(--red);
  color: var(--white);
  text-align: center;
  font-size: 13px;
  padding: 6px 20px;
  letter-spacing: 0.5px;
}
.c8cov6 a { color: var(--white); text-decoration: underline; }

/* ===== 头部导航 ===== */
header {
  background: var(--black);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0,0,0,0.5);
}

.z2yo2u3 {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.y3qfh {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.y3qfh img {
  height: 44px;
  width: auto;
}

.y3qfh-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 1px;
}

.y3qfh-text span { color: var(--red); }

/* 主导航 */
nav.main-nav ul {
  display: flex;
  align-items: center;
  gap: 4px;
}

nav.main-nav ul li a {
  color: var(--gray-light);
  padding: 8px 14px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
  white-space: nowrap;
}

nav.main-nav ul li a:hover,
nav.main-nav ul li a.active {
  color: var(--white);
  background: var(--red);
}

/* 汉堡菜单 */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}
.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: var(--transition);
}

/* ===== 搜索框 ===== */
.po8o0ug {
  background: var(--dark2);
  padding: 12px 20px;
  border-bottom: 1px solid var(--dark3);
}

.ibkcju {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  gap: 0;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(232,0,26,0.2);
}

.ibkcju input {
  flex: 1;
  padding: 10px 20px;
  border: none;
  outline: none;
  font-size: 14px;
  font-family: var(--font);
  background: var(--dark3);
  color: var(--white);
}

.ibkcju input::placeholder { color: var(--gray); }

.ibkcju button {
  padding: 10px 28px;
  background: var(--red);
  color: var(--white);
  border: none;
  cursor: pointer;
  font-size: 14px;
  font-family: var(--font);
  font-weight: 600;
  transition: var(--transition);
}

.ibkcju button:hover { background: var(--red-dark); }

/* ===== 面包屑 ===== */
.4ajo5lt {
  background: var(--white);
  padding: 10px 20px;
  font-size: 13px;
  color: var(--gray);
  border-bottom: 1px solid #eee;
}
.4ajo5lt-inner {
  max-width: 1280px;
  margin: 0 auto;
}
.4ajo5lt a { color: var(--red); }
.4ajo5lt span { margin: 0 6px; }

/* ===== Hero Banner ===== */
.hero {
  position: relative;
  height: 520px;
  overflow: hidden;
  background: var(--black);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../images/hero-banner.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.55;
  transition: transform 8s ease;
}

.hero:hover .hero-bg { transform: scale(1.04); }

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,0,0,0.7) 0%, rgba(232,0,26,0.2) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-tag {
  display: inline-block;
  background: var(--red);
  color: var(--white);
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 16px;
  font-weight: 600;
  letter-spacing: 1px;
}

.hero h1 {
  font-size: 48px;
  font-weight: 900;
  color: var(--white);
  line-height: 1.2;
  margin-bottom: 16px;
  text-shadow: 0 2px 10px rgba(0,0,0,0.5);
}

.hero h1 em {
  color: var(--red);
  font-style: normal;
}

.hero-desc {
  font-size: 17px;
  color: rgba(255,255,255,0.85);
  margin-bottom: 28px;
  max-width: 600px;
}

.hero-btns {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 24px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  font-family: var(--font);
}

.btn-primary {
  background: var(--red);
  color: var(--white);
}
.btn-primary:hover {
  background: var(--red-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(232,0,26,0.4);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.6);
}
.btn-outline:hover {
  border-color: var(--white);
  background: rgba(255,255,255,0.1);
}

/* ===== 通用区块 ===== */
.section {
  padding: 60px 20px;
}

.wneu0qr {
  background: var(--dark);
  color: var(--white);
}

.wneu0qrer {
  background: var(--black);
  color: var(--white);
}

.7swvp {
  background: var(--red);
  color: var(--white);
}

.8xgs4s0v {
  max-width: 1280px;
  margin: 0 auto;
}

.6octlgjq {
  text-align: center;
  margin-bottom: 40px;
}

.pb4mg5 {
  display: inline-block;
  background: var(--red);
  color: var(--white);
  font-size: 12px;
  padding: 3px 12px;
  border-radius: 20px;
  margin-bottom: 10px;
  font-weight: 600;
  letter-spacing: 1px;
}

.wneu0qr .pb4mg5,
.wneu0qrer .pb4mg5 {
  background: rgba(232,0,26,0.8);
}

.6octlgjq h2 {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 12px;
  line-height: 1.3;
}

.6octlgjq p {
  font-size: 15px;
  color: var(--gray);
  max-width: 600px;
  margin: 0 auto;
}

.wneu0qr .6octlgjq p,
.wneu0qrer .6octlgjq p {
  color: rgba(255,255,255,0.6);
}

/* ===== 视频卡片 ===== */
.5rii7nr {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

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

.video-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.2);
}

.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  background: var(--dark3);
  overflow: hidden;
}

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

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

.video-play-btn {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0);
  transition: var(--transition);
  opacity: 0;
}

.video-card:hover .video-play-btn {
  opacity: 1;
  background: rgba(0,0,0,0.45);
}

.play-icon {
  width: 60px;
  height: 60px;
  background: var(--red);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: scale(0.8);
  transition: transform 0.3s ease;
  box-shadow: 0 4px 20px rgba(232,0,26,0.5);
}

.video-card:hover .play-icon {
  transform: scale(1);
}

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

.video-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  background: var(--red);
  color: var(--white);
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 600;
}

.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.75);
  color: var(--white);
  font-size: 12px;
  padding: 2px 6px;
  border-radius: 4px;
}

.video-info {
  padding: 14px;
}

.video-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--black);
  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;
  justify-content: space-between;
  font-size: 12px;
  color: var(--gray);
}

.video-stats {
  display: flex;
  gap: 12px;
}

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

.video-category {
  background: #f0f0f0;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
}

/* ===== 功能模块卡片 ===== */
.5sb2c {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--dark3);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
  transition: var(--transition);
  border: 1px solid rgba(255,255,255,0.05);
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--red);
  box-shadow: 0 8px 30px rgba(232,0,26,0.2);
}

.feature-icon {
  font-size: 40px;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  line-height: 1.6;
}

/* ===== 专家展示 ===== */
.z11ho {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 24px;
}

.expert-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  text-align: center;
}

.expert-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.15);
}

.wj8bro20 {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  object-position: top;
}

.xjpby4j6 {
  padding: 16px;
}

.pnpbfk5g {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 4px;
}

.twlmta {
  font-size: 12px;
  color: var(--red);
  font-weight: 600;
  margin-bottom: 8px;
}

.rvfd0l7 {
  font-size: 13px;
  color: var(--gray);
  margin-bottom: 12px;
  line-height: 1.5;
}

.edb6uis {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
  margin-bottom: 14px;
}

.goyr9zu {
  background: #f5f5f5;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  color: var(--gray);
}

.n40hogsg {
  display: flex;
  gap: 8px;
  justify-content: center;
}

.btn-sm {
  padding: 6px 14px;
  font-size: 12px;
  border-radius: 20px;
  border: 1px solid var(--red);
  color: var(--red);
  background: transparent;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font);
}

.btn-sm:hover {
  background: var(--red);
  color: var(--white);
}

.btn-sm.filled {
  background: var(--red);
  color: var(--white);
}

/* ===== 合作品牌Logo墙 ===== */
.h31rk {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  align-items: center;
}

.partner-item {
  background: var(--dark3);
  border-radius: var(--radius);
  padding: 16px 28px;
  font-size: 14px;
  font-weight: 700;
  color: var(--gray-light);
  transition: var(--transition);
  border: 1px solid rgba(255,255,255,0.05);
  min-width: 120px;
  text-align: center;
}

.partner-item:hover {
  color: var(--white);
  border-color: var(--red);
  background: rgba(232,0,26,0.1);
}

/* ===== 用户评价 ===== */
.fj9o4j8 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.review-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border-left: 4px solid var(--red);
}

.review-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

.vxug8fae {
  color: var(--gold);
  font-size: 16px;
  margin-bottom: 10px;
}

.6j2ya {
  font-size: 14px;
  color: #444;
  line-height: 1.7;
  margin-bottom: 14px;
}

.ou5ho8va {
  display: flex;
  align-items: center;
  gap: 10px;
}

.5ib4fg3 {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--red);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 14px;
  font-weight: 700;
  flex-shrink: 0;
}

.i33v68 {
  font-size: 13px;
  font-weight: 600;
}

.vetdu {
  font-size: 12px;
  color: var(--gray);
}

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

.faq-item {
  border-bottom: 1px solid #e5e5e5;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: 18px 20px;
  background: var(--white);
  border: none;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  color: var(--black);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  transition: var(--transition);
  font-family: var(--font);
}

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

.faq-question .faq-icon {
  font-size: 20px;
  color: var(--red);
  flex-shrink: 0;
  transition: transform 0.3s ease;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  background: #fafafa;
  padding: 0 20px;
  font-size: 14px;
  color: #555;
  line-height: 1.8;
}

.faq-item.open .faq-answer {
  max-height: 300px;
  padding: 16px 20px;
}

/* ===== 联系区块 ===== */
.gib58i {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}

.1ls0w {
  background: var(--dark3);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
  border: 1px solid rgba(255,255,255,0.05);
  transition: var(--transition);
}

.1ls0w:hover {
  border-color: var(--red);
}

.1x7ne {
  font-size: 36px;
  margin-bottom: 14px;
}

.1ls0w h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
}

.1ls0w p {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
}

.1ls0w a {
  color: var(--red);
}

/* ===== 社交分享 ===== */
.v32biqg5 {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

.njt8fbf {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
}

.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  font-family: var(--font);
}

.share-wechat { background: #07c160; color: #fff; }
.share-weibo { background: #e6162d; color: #fff; }
.share-douyin { background: #010101; color: #fff; border: 1px solid #333; }
.share-bilibili { background: #00a1d6; color: #fff; }

.share-btn:hover { opacity: 0.85; transform: translateY(-2px); }

/* ===== 底部 ===== */
footer {
  background: var(--black);
  color: rgba(255,255,255,0.7);
  padding: 50px 20px 20px;
}

.9k1uqo {
  max-width: 1280px;
  margin: 0 auto;
}

.7kw8dy {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.fb1pvpr .y3qfh-text {
  font-size: 22px;
  margin-bottom: 12px;
}

.fb1pvpr p {
  font-size: 13px;
  line-height: 1.8;
  color: rgba(255,255,255,0.5);
  margin-bottom: 16px;
}

.c51jsptp {
  display: flex;
  gap: 16px;
}

.lhjyq8w {
  text-align: center;
}

.lhjyq8w img {
  width: 80px;
  height: 80px;
  border-radius: 6px;
  object-fit: cover;
}

.lhjyq8w p {
  font-size: 11px;
  color: rgba(255,255,255,0.5);
  margin-top: 6px;
}

.2dv0pr8y h5 {
  font-size: 14px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--red);
  display: inline-block;
}

.2dv0pr8y ul li {
  margin-bottom: 8px;
}

.2dv0pr8y ul li a {
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  transition: var(--transition);
}

.2dv0pr8y ul li a:hover {
  color: var(--red);
  padding-left: 4px;
}

.wukrh59 {
  padding-top: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12px;
  color: rgba(255,255,255,0.35);
}

.puh4q0ed {
  display: flex;
  gap: 16px;
}

.puh4q0ed a {
  color: rgba(255,255,255,0.35);
  transition: var(--transition);
}

.puh4q0ed a:hover { color: var(--red); }

.cs4cyyea {
  font-size: 12px;
  color: rgba(255,255,255,0.3);
}

/* ===== 统计数字 ===== */
.stats-bar {
  background: var(--red);
  padding: 28px 20px;
}

.stats-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: center;
}

.nuavi3b h3 {
  font-size: 36px;
  font-weight: 900;
  color: var(--white);
  line-height: 1;
}

.nuavi3b p {
  font-size: 13px;
  color: rgba(255,255,255,0.8);
  margin-top: 6px;
}

/* ===== How-To 指南 ===== */
.41e8j {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 24px;
  counter-reset: step;
}

.howto-step {
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px 22px;
  text-align: center;
  box-shadow: var(--shadow);
  position: relative;
  transition: var(--transition);
}

.howto-step:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.12);
}

.ptp58h {
  width: 44px;
  height: 44px;
  background: var(--red);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 900;
  margin: 0 auto 14px;
}

.howto-step h4 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 8px;
}

.howto-step p {
  font-size: 13px;
  color: var(--gray);
  line-height: 1.6;
}

/* ===== 内页 Banner ===== */
.0muh59ky {
  background: linear-gradient(135deg, var(--black) 0%, var(--dark2) 100%);
  padding: 60px 20px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.0muh59ky::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 50%, rgba(232,0,26,0.15) 0%, transparent 60%);
}

.0muh59ky h1 {
  font-size: 38px;
  font-weight: 900;
  color: var(--white);
  position: relative;
  z-index: 1;
  margin-bottom: 12px;
}

.0muh59ky p {
  font-size: 16px;
  color: rgba(255,255,255,0.7);
  position: relative;
  z-index: 1;
  max-width: 600px;
  margin: 0 auto;
}

/* ===== 标签页 ===== */
.tabs {
  display: flex;
  gap: 4px;
  border-bottom: 2px solid #e5e5e5;
  margin-bottom: 30px;
  overflow-x: auto;
}

.tab-btn {
  padding: 10px 20px;
  border: none;
  background: transparent;
  font-size: 14px;
  font-weight: 600;
  color: var(--gray);
  cursor: pointer;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: var(--transition);
  font-family: var(--font);
}

.tab-btn.active,
.tab-btn:hover {
  color: var(--red);
  border-bottom-color: var(--red);
}

/* ===== 加载更多 ===== */
.97ny8 {
  text-align: center;
  margin-top: 36px;
}

/* ===== 通知提示 ===== */
.search-tip {
  display: none;
  background: var(--dark2);
  border: 1px solid var(--red);
  color: var(--white);
  padding: 12px 20px;
  border-radius: var(--radius);
  font-size: 14px;
  margin-top: 8px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .7kw8dy {
    grid-template-columns: 1fr 1fr;
  }
  .stats-inner {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .hero { height: 380px; }
  .hero h1 { font-size: 30px; }
  .hero-desc { font-size: 14px; }

  nav.main-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--black);
    padding: 16px;
    border-top: 1px solid var(--dark3);
  }

  nav.main-nav.open { display: block; }

  nav.main-nav ul {
    flex-direction: column;
    gap: 4px;
  }

  nav.main-nav ul li a {
    display: block;
    padding: 10px 16px;
  }

  .menu-toggle { display: flex; }

  .7kw8dy {
    grid-template-columns: 1fr;
    gap: 28px;
  }

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

  .6octlgjq h2 { font-size: 24px; }

  .0muh59ky h1 { font-size: 26px; }
}

@media (max-width: 480px) {
  .hero { height: 320px; }
  .hero h1 { font-size: 24px; }
  .hero-btns { flex-direction: column; }
  .stats-inner { grid-template-columns: repeat(2, 1fr); }
  .nuavi3b h3 { font-size: 28px; }
}

/* ===== 懒加载占位 ===== */
img[loading="lazy"] {
  background: #e0e0e0;
}

/* ===== 动画 ===== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-in {
  animation: fadeInUp 0.5s ease forwards;
}

/* ===== 滚动到顶部按钮 ===== */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 44px;
  height: 44px;
  background: var(--red);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 999;
  border: none;
  box-shadow: 0 4px 15px rgba(232,0,26,0.4);
}

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

.back-to-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(232,0,26,0.5);
}

/* ===== 图片画廊 ===== */
.nhjrwfe8 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
}

.o85jq {
  aspect-ratio: 1;
  overflow: hidden;
  border-radius: var(--radius);
  cursor: pointer;
  position: relative;
}

.o85jq img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.o85jq:hover img { transform: scale(1.08); }

.e3z16 {
  position: absolute;
  inset: 0;
  background: rgba(232,0,26,0.6);
  opacity: 0;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 28px;
}

.o85jq:hover .e3z16 { opacity: 1; }