/* ============================================
   南宫体育app · 运动随行
   设计系统 — 活力能量·有机形态
   Awwwards 获奖设计风格
   ============================================ */

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

body {
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  overflow-x:hidden;
  background: #FFF8F0;
  color: #2D2D2D;
  line-height: 1.6;
}

/* 滚动条美化 */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #FFF8F0; }
::-webkit-scrollbar-thumb { background: #FF7E67; border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: #E56A55; }

/* 选中颜色 */
::selection { background: #FF7E67; color: #fff; }

/* ============================================
   核心容器
   ============================================ */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
  position: relative;
}

.section:nth-child(even) {
  background: #FDF6EC;
}

/* 装饰性波浪分隔线 */
.section::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 40px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 40'%3E%3Cpath d='M0,20 C360,40 1080,0 1440,20 L1440,40 L0,40 Z' fill='%23FFF8F0' opacity='0.6'/%3E%3C/svg%3E") no-repeat bottom / cover;
  pointer-events: none;
  z-index: 1;
}

.section:nth-child(even)::after {
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 40'%3E%3Cpath d='M0,20 C360,40 1080,0 1440,20 L1440,40 L0,40 Z' fill='%23FDF6EC' opacity='0.6'/%3E%3C/svg%3E") no-repeat bottom / cover;
}

.section:last-of-type::after {
  display: none;
}

/* ============================================
   导航 — 固定顶部 · 毛玻璃
   ============================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 248, 240, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 126, 103, 0.15);
  transition: background 0.3s ease;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.3rem;
  text-decoration: none;
  color: #2D2D2D;
  letter-spacing: -0.3px;
}

.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  background: linear-gradient(135deg, #FF7E67, #FFB088);
  color: #fff;
  box-shadow: 0 4px 12px rgba(255, 126, 103, 0.3);
  transition: transform 0.3s ease;
}

.logo:hover .logo-icon {
  transform: rotate(-15deg) scale(1.05);
}

.logo span {
  background: linear-gradient(135deg, #FF7E67, #0ABD8B);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.main-nav a {
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  color: #4A4A4A;
  transition: all 0.3s ease;
  position: relative;
  padding-bottom: 4px;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #FF7E67, #0ABD8B);
  transition: width 0.3s ease;
  border-radius: 2px;
}

.main-nav a:hover {
  color: #FF7E67;
}

.main-nav a:hover::after {
  width: 100%;
}

.nav-cta {
  padding: 10px 24px;
  border-radius: 50px;
  color: #fff !important;
  font-weight: 600;
  background: linear-gradient(135deg, #FF7E67, #FFB088);
  box-shadow: 0 4px 16px rgba(255, 126, 103, 0.3);
  transition: all 0.3s ease !important;
}

.nav-cta::after {
  display: none !important;
}

.nav-cta:hover {
  transform: translateY(-2px) !important;
  box-shadow: 0 6px 24px rgba(255, 126, 103, 0.4) !important;
  color: #fff !important;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: #2D2D2D;
  font-size: 1.4rem;
}

/* ============================================
   Hero 区域 — 能量爆发
   ============================================ */
.hero {
  min-height: 85vh;
  display: flex;
  align-items: center;
  position: relative;
  padding: 120px 0 80px;
  background: linear-gradient(160deg, #FFF8F0 0%, #FFEDE6 40%, #E8F8F2 100%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 126, 103, 0.12) 0%, rgba(10, 189, 139, 0.06) 60%, transparent 70%);
  pointer-events: none;
  animation: heroGlow 8s ease-in-out infinite alternate;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -10%;
  left: -5%;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(10, 189, 139, 0.1) 0%, rgba(255, 126, 103, 0.04) 60%, transparent 70%);
  pointer-events: none;
  animation: heroGlow 10s ease-in-out infinite alternate-reverse;
}

@keyframes heroGlow {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(30px, -20px) scale(1.1); }
}

.hero .container {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 60px;
}

.hero-content {
  max-width: 620px;
  flex: 1;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 2px;
  padding: 6px 18px;
  border-radius: 50px;
  margin-bottom: 20px;
  background: linear-gradient(135deg, rgba(255, 126, 103, 0.12), rgba(10, 189, 139, 0.08));
  color: #FF7E67;
  text-transform: uppercase;
}

.hero h1 {
  font-size: 3.4rem;
  line-height: 1.15;
  margin-bottom: 20px;
  font-weight: 800;
  letter-spacing: -1px;
  color: #2D2D2D;
}

.hero h1 .highlight {
  background: linear-gradient(135deg, #FF7E67, #0ABD8B);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.1rem;
  opacity: 0.7;
  max-width: 520px;
  margin-bottom: 36px;
  line-height: 1.7;
  color: #4A4A4A;
}

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

.hero-image {
  flex: 1;
  max-width: 480px;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 24px 64px rgba(255, 126, 103, 0.15), 0 8px 24px rgba(0,0,0,0.04);
  position: relative;
}

.hero-image::before {
  content: '';
  position: absolute;
  inset: 0;
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 24px;
  pointer-events: none;
  z-index: 1;
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s ease;
}

.hero-image:hover img {
  transform: scale(1.03);
}

/* ============================================
   按钮系统
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  font-size: 0.9rem;
  letter-spacing: 0.3px;
}

.btn-primary {
  background: linear-gradient(135deg, #FF7E67, #FF9A7A);
  color: #fff;
  box-shadow: 0 6px 20px rgba(255, 126, 103, 0.3);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 32px rgba(255, 126, 103, 0.4);
}

.btn-outline {
  background: transparent;
  border: 2px solid #FF7E67;
  color: #FF7E67;
}

.btn-outline:hover {
  background: rgba(255, 126, 103, 0.06);
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(255, 126, 103, 0.15);
}

.btn .icon-arrow {
  display: inline-block;
  transition: transform 0.3s ease;
}

.btn:hover .icon-arrow {
  transform: translateX(4px);
}

/* ============================================
   标签 / 标题
   ============================================ */
.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 3px;
  margin-bottom: 14px;
  color: #FF7E67;
  text-transform: uppercase;
  position: relative;
  padding-left: 40px;
}

.section-label::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 28px;
  height: 2px;
  background: linear-gradient(90deg, #FF7E67, #0ABD8B);
  border-radius: 2px;
  transform: translateY(-50%);
}

.section-title {
  font-size: 2.4rem;
  margin-bottom: 16px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: #2D2D2D;
  line-height: 1.2;
}

.section-desc {
  max-width: 620px;
  opacity: 0.7;
  margin-bottom: 44px;
  font-size: 1.05rem;
  color: #4A4A4A;
  line-height: 1.7;
}

/* ============================================
   卡片网格
   ============================================ */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 28px;
}

.category-card {
  border-radius: 20px;
  padding: 32px 28px;
  background: #fff;
  border: 1px solid rgba(255, 126, 103, 0.08);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0,0,0,0.02);
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, #FF7E67, #0ABD8B);
  border-radius: 0 4px 4px 0;
  transition: width 0.4s ease;
}

.category-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(255, 126, 103, 0.12), 0 4px 16px rgba(0,0,0,0.04);
  border-color: rgba(255, 126, 103, 0.15);
}

.category-card:hover::before {
  width: 6px;
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.5rem;
  background: linear-gradient(135deg, rgba(255, 126, 103, 0.1), rgba(10, 189, 139, 0.06));
  color: #FF7E67;
  transition: all 0.3s ease;
}

.category-card:hover .card-icon {
  background: linear-gradient(135deg, rgba(255, 126, 103, 0.18), rgba(10, 189, 139, 0.1));
  transform: scale(1.05);
}

.category-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: #2D2D2D;
}

.category-card p {
  font-size: 0.9rem;
  opacity: 0.6;
  line-height: 1.6;
  color: #4A4A4A;
  margin-bottom: 14px;
}

.card-link {
  font-weight: 600;
  font-size: 0.85rem;
  text-decoration: none;
  color: #FF7E67;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.3s ease;
}

.card-link:hover {
  gap: 12px;
}

.card-link::after {
  content: '→';
  transition: transform 0.3s ease;
}

.card-link:hover::after {
  transform: translateX(2px);
}

/* ============================================
   特性块 — 左右布局
   ============================================ */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.feature-block.reverse {
  direction: rtl;
}

.feature-block.reverse > * {
  direction: ltr;
}

.feature-image {
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 16px 48px rgba(255, 126, 103, 0.1);
  position: relative;
}

.feature-image::after {
  content: '';
  position: absolute;
  inset: 0;
  border: 2px solid rgba(255, 255, 255, 0.15);
  border-radius: 20px;
  pointer-events: none;
}

.feature-image img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.6s ease;
}

.feature-image:hover img {
  transform: scale(1.02);
}

.feature-text {
  padding: 20px 0;
}

.feature-text .section-title {
  font-size: 2rem;
}

.feature-text .section-desc {
  margin-bottom: 28px;
}

.feature-list {
  list-style: none;
  margin-top: 20px;
}

.feature-list li {
  padding: 10px 0;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
  color: #4A4A4A;
  border-bottom: 1px solid rgba(0,0,0,0.04);
}

.feature-list li:last-child {
  border-bottom: none;
}

.feature-list li::before {
  content: '✓';
  font-weight: 700;
  color: #0ABD8B;
  font-size: 1.1rem;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(10, 189, 139, 0.1);
  border-radius: 50%;
  flex-shrink: 0;
}

/* ============================================
   数据条 — 统计数字
   ============================================ */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-item {
  padding: 32px 20px;
  border-radius: 20px;
  border: 1px solid rgba(255, 126, 103, 0.08);
  background: #fff;
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
}

.stat-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, #FF7E67, #0ABD8B);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(255, 126, 103, 0.1);
}

.stat-item:hover::before {
  transform: scaleX(1);
}

.stat-number {
  font-size: 2.6rem;
  font-weight: 800;
  background: linear-gradient(135deg, #FF7E67, #0ABD8B);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
  letter-spacing: -1px;
}

.stat-label {
  font-size: 0.9rem;
  opacity: 0.6;
  margin-top: 8px;
  color: #4A4A4A;
  font-weight: 500;
}

/* 不同数据项用不同渐变色 */
.stat-item:nth-child(1) .stat-number {
  background: linear-gradient(135deg, #FF7E67, #FFB088);
  -webkit-background-clip: text;
  background-clip: text;
}
.stat-item:nth-child(2) .stat-number {
  background: linear-gradient(135deg, #0ABD8B, #4DD0A8);
  -webkit-background-clip: text;
  background-clip: text;
}
.stat-item:nth-child(3) .stat-number {
  background: linear-gradient(135deg, #FFD93D, #FFB088);
  -webkit-background-clip: text;
  background-clip: text;
}
.stat-item:nth-child(4) .stat-number {
  background: linear-gradient(135deg, #6C5CE7, #A29BFE);
  -webkit-background-clip: text;
  background-clip: text;
}

/* ============================================
   内容墙 — 图文卡片
   ============================================ */
.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 28px;
}

.content-wall-item {
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid rgba(255, 126, 103, 0.08);
  background: #fff;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 2px 12px rgba(0,0,0,0.02);
}

.content-wall-item:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(255, 126, 103, 0.1);
  border-color: rgba(255, 126, 103, 0.15);
}

.content-wall-item img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
  transition: transform 0.6s ease;
}

.content-wall-item:hover img {
  transform: scale(1.03);
}

.content-wall-body {
  padding: 24px 24px 28px;
}

.content-wall-body .meta {
  font-size: 0.75rem;
  color: #0ABD8B;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.content-wall-body h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: #2D2D2D;
  line-height: 1.3;
}

.content-wall-body p {
  font-size: 0.9rem;
  opacity: 0.6;
  color: #4A4A4A;
  line-height: 1.6;
}

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

.faq-item {
  border: 1px solid rgba(255, 126, 103, 0.08);
  border-radius: 16px;
  margin-bottom: 10px;
  overflow: hidden;
  cursor: pointer;
  background: #fff;
  transition: all 0.3s ease;
}

.faq-item:hover {
  border-color: rgba(255, 126, 103, 0.15);
  box-shadow: 0 4px 16px rgba(255, 126, 103, 0.06);
}

.faq-item .faq-question {
  padding: 20px 24px;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #2D2D2D;
  font-size: 1rem;
  transition: color 0.3s ease;
}

.faq-item .faq-question::after {
  content: '+';
  font-size: 1.4rem;
  font-weight: 300;
  color: #FF7E67;
  transition: transform 0.3s ease;
  flex-shrink: 0;
  margin-left: 16px;
}

.faq-item.open .faq-question::after {
  content: '−';
  transform: rotate(180deg);
}

.faq-item.open .faq-question {
  color: #FF7E67;
}

.faq-item .faq-answer {
  padding: 0 24px 20px;
  display: none;
  opacity: 0.7;
  color: #4A4A4A;
  line-height: 1.7;
  font-size: 0.95rem;
}

.faq-item.open .faq-answer {
  display: block;
  animation: fadeInUp 0.4s ease;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 0.7; transform: translateY(0); }
}

/* ============================================
   CTA 横幅
   ============================================ */
.cta-banner {
  padding: 64px 40px;
  text-align: center;
  border-radius: 24px;
  background: linear-gradient(135deg, #FF7E67, #FF9A7A, #0ABD8B);
  color: #fff;
  position: relative;
  overflow: hidden;
  box-shadow: 0 16px 48px rgba(255, 126, 103, 0.2);
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  pointer-events: none;
}

.cta-banner::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  pointer-events: none;
}

.cta-banner h2 {
  color: #fff;
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 14px;
  position: relative;
  z-index: 1;
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.05rem;
  max-width: 500px;
  margin: 0 auto 28px;
  position: relative;
  z-index: 1;
  line-height: 1.6;
}

.cta-banner .btn-primary {
  background: #fff;
  color: #FF7E67;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
  position: relative;
  z-index: 1;
}

.cta-banner .btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
}

/* ============================================
   页脚
   ============================================ */
.site-footer {
  padding: 64px 0 28px;
  background: #2D2D2D;
  color: rgba(255, 255, 255, 0.8);
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, #FF7E67, #0ABD8B, #FFD93D);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
}

.footer-brand {
  max-width: 320px;
}

.footer-brand .logo {
  color: #fff;
  margin-bottom: 16px;
}

.footer-brand .logo-icon {
  background: linear-gradient(135deg, #FF7E67, #0ABD8B);
}

.footer-brand p {
  font-size: 0.9rem;
  opacity: 0.6;
  line-height: 1.7;
  margin-top: 12px;
}

.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul a {
  text-decoration: none;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
  transition: color 0.3s ease, padding-left 0.3s ease;
  display: inline-block;
}

.footer-col ul a:hover {
  color: #FF7E67;
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: 48px;
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
  opacity: 0.5;
  color: rgba(255, 255, 255, 0.6);
}

/* ============================================
   工具类
   ============================================ */
.text-accent {
  color: #FF7E67;
}

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

.seo-description {
  max-width: 600px;
  margin: 0 auto 48px;
  opacity: 0.7;
  color: #4A4A4A;
  line-height: 1.7;
}

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

/* ============================================
   响应式设计
   ============================================ */
@media (max-width: 1024px) {
  .hero h1 {
    font-size: 2.8rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .feature-block {
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .hero {
    min-height: auto;
    padding: 100px 0 60px;
  }
  
  .hero .container {
    flex-direction: column;
    text-align: center;
  }
  
  .hero-content {
    max-width: 100%;
  }
  
  .hero h1 {
    font-size: 2.2rem;
  }
  
  .hero p {
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-buttons {
    justify-content: center;
  }
  
  .hero-image {
    max-width: 100%;
    margin-top: 20px;
  }
  
  .hero-eyebrow {
    margin-left: auto;
    margin-right: auto;
  }
  
  .section-label {
    padding-left: 0;
  }
  
  .section-label::before {
    display: none;
  }
  
  .section-title {
    font-size: 1.7rem;
  }
  
  .feature-block {
    grid-template-columns: 1fr;
    gap: 32px;
    text-align: center;
  }
  
  .feature-block.reverse {
    direction: ltr;
  }
  
  .feature-text {
    order: 2;
  }
  
  .feature-image {
    order: 1;
  }
  
  .feature-list li {
    justify-content: center;
  }
  
  .feature-text .section-desc {
    margin-left: auto;
    margin-right: auto;
  }
  
  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  
  .stat-item {
    padding: 24px 16px;
  }
  
  .stat-number {
    font-size: 2rem;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  
  .footer-brand {
    grid-column: 1 / -1;
    max-width: 100%;
    text-align: center;
  }
  
  .footer-brand .logo {
    justify-content: center;
  }
  
  .main-nav {
    display: none;
  }
  
  .menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 126, 103, 0.08);
    border-radius: 50%;
    border: none;
    cursor: pointer;
    color: #2D2D2D;
    font-size: 1.2rem;
    transition: background 0.3s ease;
  }
  
  .menu-toggle:hover {
    background: rgba(255, 126, 103, 0.15);
  }
  
  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background: rgba(255, 248, 240, 0.98);
    backdrop-filter: blur(16px);
    padding: 28px 24px;
    gap: 20px;
    border-bottom: 1px solid rgba(255, 126, 103, 0.1);
    box-shadow: 0 16px 48px rgba(0,0,0,0.06);
  }
  
  .main-nav.open a {
    font-size: 1rem;
    padding: 6px 0;
  }
  
  .main-nav.open .nav-cta {
    text-align: center;
    margin-top: 8px;
  }
  
  .hero::before,
  .hero::after {
    width: 300px;
    height: 300px;
  }
  
  .cta-banner {
    padding: 48px 24px;
  }
  
  .cta-banner h2 {
    font-size: 1.6rem;
  }
  
  .content-wall {
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  }
  
  .cards-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  }
}

@media (max-width: 480px) {
  .cards-grid,
  .content-wall,
  .stats-bar {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer-col ul li a {
    justify-content: center;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .hero-buttons .btn {
    width: 100%;
    justify-content: center;
  }
  
  .hero h1 {
    font-size: 1.8rem;
  }
  
  .section-title {
    font-size: 1.4rem;
  }
  
  .stat-item {
    padding: 20px 16px;
  }
  
  .stat-number {
    font-size: 1.8rem;
  }
  
  .cta-banner h2 {
    font-size: 1.3rem;
  }
  
  .cta-banner {
    padding: 36px 20px;
    border-radius: 16px;
  }
  
  .feature-block {
    gap: 24px;
  }
  
  .site-footer {
    padding: 40px 0 20px;
  }
  
  .footer-grid {
    gap: 24px;
  }
  
  .section {
    padding: 60px 0;
  }
}

/* 小屏设备特殊优化 */
@media (max-width: 360px) {
  .header-inner {
    padding: 0 16px;
    height: 64px;
  }
  
  .logo {
    font-size: 1rem;
  }
  
  .logo-icon {
    width: 32px;
    height: 32px;
    font-size: 0.9rem;
  }
  
  .container {
    padding: 0 16px;
  }
  
  .hero {
    padding: 80px 0 40px;
  }
  
  .hero h1 {
    font-size: 1.5rem;
  }
  
  .hero p {
    font-size: 0.9rem;
  }
  
  .category-card {
    padding: 24px 20px;
  }
}