@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;700;900&display=swap');

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

body {
  font-family: 'Noto Sans SC', system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  overflow-x:hidden;
  background:#FFF8F0;
  color:#2D1B1B;
  line-height:1.6;
  font-size:16px;
}

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

.section { padding:96px 0; position:relative; }

.section:nth-child(even) { background:#FDF0E3; }

/* ============ 导航 ============ */
.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:2px solid #FFE8D6;
}

.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:900; font-size:1.35rem; text-decoration:none; color:#2D1B1B;
  letter-spacing:-0.5px;
}

.logo-icon {
  width:40px; height:40px;
  background:linear-gradient(135deg,#FF6B4A,#FF8A65);
  border-radius:12px;
  display:flex; align-items:center; justify-content:center;
  font-size:1.2rem;
  color:#FFF;
  box-shadow:0 4px 12px rgba(255,107,74,0.4);
  transform:rotate(-5deg);
  transition:transform 0.3s;
}

.logo:hover .logo-icon { transform:rotate(5deg) scale(1.05); }

.logo span:last-child { font-size:0.7rem; font-weight:500; color:#FF6B4A; display:block; line-height:1; margin-top:2px; }

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

.main-nav a {
  text-decoration:none; font-size:0.95rem; font-weight:500;
  color:#2D1B1B; transition:0.2s; position:relative;
  padding:4px 0;
}

.main-nav a:not(.nav-cta)::after {
  content:'';
  position:absolute; bottom:0; left:0; width:0; height:2px;
  background:#FF6B4A; transition:width 0.3s ease;
}

.main-nav a:not(.nav-cta):hover::after { width:100%; }
.main-nav a:not(.nav-cta):hover { color:#FF6B4A; }

.nav-cta {
  padding:10px 24px;
  background:linear-gradient(135deg,#FF6B4A,#FF8A65);
  border-radius:50px;
  color:#FFF !important;
  font-weight:700;
  font-size:0.9rem !important;
  box-shadow:0 4px 16px rgba(255,107,74,0.35);
  transition:all 0.3s;
  letter-spacing:0.5px;
}

.nav-cta:hover { transform:translateY(-2px); box-shadow:0 6px 24px rgba(255,107,74,0.5); }
.nav-cta::after { display:none !important; }
.nav-cta:hover { color:#FFF !important; }

.menu-toggle {
  display:none;
  width:42px; height:42px; flex-direction:column;
  align-items:center; justify-content:center; gap:5px;
  background:none; border:2px solid #FFD6C0; border-radius:50%;
  cursor:pointer; transition:0.3s;
}

.menu-toggle span {
  width:18px; height:2px; background:#2D1B1B;
  border-radius:2px; transition:0.3s;
}

.menu-toggle:hover { border-color:#FF6B4A; }
.menu-toggle:hover span { background:#FF6B4A; }

/* ============ HERO ============ */
.hero {
  min-height:85vh;
  display:flex; align-items:center;
  position:relative;
  overflow:hidden;
  background:
    radial-gradient(ellipse at 80% 20%, rgba(255,107,74,0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 20% 80%, rgba(78,205,196,0.08) 0%, transparent 50%),
    #FFF8F0;
  padding-top:120px;
}

.hero::before {
  content: '';
  position: absolute;
  top: -100px; right: -100px;
  width: 400px; height: 400px;
  background: rgba(255,107,74,0.06);
  border-radius: 50%;
  z-index: 0;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -60px; left: -60px;
  width: 200px; height: 200px;
  background: rgba(78,205,196,0.08);
  border-radius: 50%;
  z-index: 0;
}

.hero-content { max-width:760px; position:relative; z-index:1; }

.hero-eyebrow {
  display:inline-block;
  font-size:0.85rem; font-weight:700;
  padding:6px 20px;
  background:linear-gradient(135deg,#FF6B4A,#FF8A65);
  color:#FFF;
  border-radius:50px;
  margin-bottom:20px;
  letter-spacing:1px;
  box-shadow:0 4px 12px rgba(255,107,74,0.3);
}

.hero h1 {
  font-size:3.8rem; line-height:1.15;
  margin-bottom:24px;
  font-weight:900;
  color:#2D1B1B;
  letter-spacing:-2px;
}

.hero h1 .highlight {
  background:linear-gradient(135deg,#FF6B4A,#FF8A65);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  display:inline-block;
}

.hero p {
  font-size:1.2rem; opacity:0.75;
  max-width:560px; margin-bottom:36px;
  font-weight:300;
  line-height:1.7;
}

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

/* ============ 按钮 ============ */
.btn {
  display:inline-flex; align-items:center; gap:8px;
  padding:14px 32px; border-radius:50px;
  font-weight:700; cursor:pointer; border:none;
  text-decoration:none; transition:0.3s;
  font-size:0.95rem;
  letter-spacing:0.5px;
}

.btn-primary {
  background:linear-gradient(135deg,#FF6B4A,#FF8A65);
  color:#FFF !important;
  box-shadow:0 4px 16px rgba(255,107,74,0.35);
}

.btn-primary:hover {
  transform:translateY(-3px);
  box-shadow:0 8px 28px rgba(255,107,74,0.45);
}

.btn-outline {
  background:transparent;
  border:2px solid #2D1B1B;
  color:#2D1B1B !important;
}

.btn-outline:hover { background:#2D1B1B; color:#FFF !important; transform:translateY(-3px); }

/* 额外按钮形状——圆形的播放按钮 */
.btn-play {
  width:64px; height:64px;
  border-radius:50%;
  background:linear-gradient(135deg,#4ECDC4,#6ED5CB);
  color:#FFF;
  font-size:1.4rem;
  display:inline-flex; align-items:center; justify-content:center;
  box-shadow:0 6px 20px rgba(78,205,196,0.4);
  transition:all 0.3s;
  flex-shrink:0;
}

.btn-play:hover { transform:scale(1.1); box-shadow:0 8px 30px rgba(78,205,196,0.5); }

/* ============ 标签/标题 ============ */
.section-label {
  display:inline-block;
  font-size:0.85rem; font-weight:700;
  letter-spacing:2px;
  margin-bottom:14px;
  color:#FF6B4A;
  background:rgba(255,107,74,0.1);
  padding:4px 14px;
  border-radius:50px;
}

.section-title {
  font-size:2.6rem; margin-bottom:16px;
  font-weight:900;
  letter-spacing:-1px;
  color:#2D1B1B;
}

.section-desc {
  max-width:600px; opacity:0.7;
  margin-bottom:44px;
  font-weight:300;
  font-size:1.05rem;
}

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

.category-card {
  background:#FFFFFF;
  border-radius:20px;
  padding:32px;
  border:2px solid #FFE8D6;
  transition:0.3s;
  position:relative;
  overflow:hidden;
}

.category-card::before {
  content:'';
  position:absolute; top:0; left:0; width:100%; height:4px;
  background:linear-gradient(90deg,#FF6B4A,#FF8A65,#4ECDC4);
  opacity:0;
  transition:0.3s;
}

.category-card:hover {
  transform:translateY(-5px);
  box-shadow:0 12px 36px rgba(45,27,27,0.1);
  border-color:#FF6B4A;
}

.category-card:hover::before { opacity:1; }

.card-icon {
  width:52px; height:52px;
  border-radius:14px;
  display:flex; align-items:center; justify-content:center;
  margin-bottom:18px; font-size:1.4rem;
  background:linear-gradient(135deg,#FFF0E8,#FFE8D6);
  color:#FF6B4A;
}

.category-card h3 { font-size:1.15rem; margin-bottom:8px; font-weight:700; }

.category-card p { font-size:0.9rem; color:rgba(45,27,27,0.6); margin-bottom:16px; line-height:1.5; }

.card-link {
  font-weight:700; font-size:0.85rem; text-decoration:none;
  color:#FF6B4A;
  display:inline-flex; align-items:center; gap:4px;
  transition:gap 0.2s;
}

.card-link:hover { gap:8px; }

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

.feature-image {
  border-radius:20px; overflow:hidden;
  box-shadow:0 20px 48px rgba(45,27,27,0.12);
  position:relative;
}

.feature-image::before {
  content:'';
  position:absolute; inset:0;
  background: linear-gradient(to top, rgba(255,107,74,0.2), transparent 40%);
  z-index:1;
  opacity:0;
  transition:opacity 0.4s;
}

.feature-image:hover::before { opacity:1; }

.feature-image img {
  width:100%; height:auto;
  display:block;
  transition:transform 0.5s;
}

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

.feature-text h3 {
  font-size:2rem; margin-bottom:16px;
  font-weight:900; letter-spacing:-0.5px;
}

.feature-text p { margin-bottom:20px; opacity:0.7; font-weight:300; }

.feature-list { list-style:none; }

.feature-list li {
  padding:8px 0; display:flex; align-items:center; gap:10px;
  font-size:1rem; font-weight:400;
}

.feature-list li::before {
  content:'✓';
  font-weight:900;
  width:24px; height:24px;
  background:linear-gradient(135deg,#4ECDC4,#6ED5CB);
  border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  color:#FFF;
  font-size:0.7rem;
  flex-shrink:0;
}

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

.stat-item {
  padding:28px 20px;
  background:#FFFFFF;
  border-radius:20px;
  border:2px solid #FFE8D6;
  position:relative;
  overflow:hidden;
  transition:0.3s;
}

.stat-item:hover { transform:translateY(-4px); box-shadow:0 10px 30px rgba(255,107,74,0.15); }

.stat-number {
  font-size:2.8rem; font-weight:900;
  background:linear-gradient(135deg,#FF6B4A,#FF8A65);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  display:inline-block;
}

.stat-label {
  font-size:0.9rem; opacity:0.6;
  margin-top:6px; font-weight:400;
}

/* ============ 内容墙 ============ */
.content-wall {
  display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr)); gap:28px;
}

.content-wall-item {
  background:#FFF;
  border-radius:20px; overflow:hidden;
  border:2px solid #FFE8D6;
  transition:0.3s;
}

.content-wall-item:hover {
  transform:translateY(-5px);
  box-shadow:0 14px 40px rgba(45,27,27,0.12);
  border-color:#4ECDC4;
}

.content-wall-item img {
  width:100%; height:200px; object-fit:cover;
  transition:transform 0.5s;
}

.content-wall-item:hover img { transform:scale(1.05); }

.content-wall-body { padding:20px; }

.content-wall-body h4 { font-weight:700; font-size:1rem; margin-bottom:4px; }

.content-wall-body span {
  font-size:0.8rem; color:#FF6B4A; font-weight:600;
}

.content-wall-body p {
  font-size:0.85rem; color:rgba(45,27,27,0.55); margin-top:8px;
  line-height:1.4;
}

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

.faq-item {
  background:#FFFFFF;
  border:2px solid #FFE8D6;
  border-radius:16px;
  margin-bottom:12px;
  overflow:hidden;
  cursor:pointer;
  transition:0.3s;
}

.faq-item:hover { border-color:#FF6B4A; }

.faq-item.open { border-color:#4ECDC4; box-shadow:0 6px 20px rgba(78,205,196,0.15); }

.faq-item .faq-question {
  padding:20px 24px;
  font-weight:700;
  display:flex; justify-content:space-between; align-items:center;
  font-size:0.98rem;
}

.faq-item .faq-question::after {
  content:'+';
  font-size:1.4rem;
  font-weight:400;
  color:#FF6B4A;
  transition:transform 0.3s;
  width:28px; height:28px;
  display:flex; align-items:center; justify-content:center;
  background:rgba(255,107,74,0.1);
  border-radius:50%;
  flex-shrink:0;
}

.faq-item.open .faq-question::after { transform:rotate(45deg); color:#4ECDC4; background:rgba(78,205,196,0.1); }

.faq-item .faq-answer {
  padding:0 24px 20px;
  display:none;
  opacity:0.7;
  font-weight:300;
  font-size:0.95rem;
  line-height:1.7;
}

.faq-item.open .faq-answer { display:block; animation:fadeIn 0.3s ease; }

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

/* ============ CTA横幅 ============ */
.cta-banner {
  padding:64px 48px;
  text-align:center;
  border-radius:28px;
  background:linear-gradient(135deg,#FF6B4A,#FF8A65,#4ECDC4);
  background-size:200% 200%;
  animation:gradientMove 8s ease infinite;
  color:#FFF;
  position:relative;
  overflow:hidden;
}

@keyframes gradientMove {
  0%,100% { background-position:0% 50%; }
  50% { background-position:100% 50%; }
}

.cta-banner::before {
  content:'';
  position:absolute; top:-50px; right:-50px;
  width:200px; height:200px;
  background:rgba(255,255,255,0.1);
  border-radius:50%;
}

.cta-banner::after {
  content:'';
  position:absolute; bottom:-60px; left:-60px;
  width:180px; height:180px;
  background:rgba(255,255,255,0.08);
  border-radius:50%;
}

.cta-banner h2 {
  color:#FFF;
  font-size:2.2rem;
  font-weight:900;
  margin-bottom:12px;
  position:relative; z-index:1;
  text-shadow:0 2px 10px rgba(0,0,0,0.1);
}

.cta-banner p { color:rgba(255,255,255,0.9); margin-bottom:28px; font-weight:300; position:relative; z-index:1; }

.cta-banner .btn-primary {
  background:#FFF;
  color:#FF6B4A !important;
  box-shadow:0 8px 24px rgba(0,0,0,0.15);
  position:relative; z-index:1;
}

.cta-banner .btn-primary:hover { transform:translateY(-3px); box-shadow:0 12px 32px rgba(0,0,0,0.2); }

/* ============ 页脚 ============ */
.site-footer {
  padding:64px 0 28px;
  background:#2D1B1B;
  color:#F5F0EB;
}

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

.footer-brand p {
  font-size:0.95rem; opacity:0.7;
  margin-top:16px;
  max-width:320px;
  font-weight:300;
  line-height:1.6;
}

.footer-col h4 {
  font-size:0.9rem; font-weight:700;
  margin-bottom:16px;
  color:#FF8A65;
  letter-spacing:1px;
}

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

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

.footer-col ul a {
  color:rgba(245,240,235,0.7);
  text-decoration:none;
  font-size:0.88rem;
  transition:0.2s;
  font-weight:300;
}

.footer-col ul a:hover { color:#FF6B4A; padding-left:4px; }

.footer-bottom {
  border-top:1px solid rgba(255,255,255,0.1);
  margin-top:48px; padding-top:20px;
  text-align:center; font-size:0.85rem;
  opacity:0.6;
  font-weight:300;
}

/* ============ 工具类 ============ */
.text-accent {
  background:linear-gradient(135deg,#FF6B4A,#4ECDC4);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
}

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

.seo-description {
  max-width:600px; margin:0 auto 48px;
  opacity:0.7; font-weight:300;
  font-size:1rem;
  line-height:1.7;
}

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

/* ============ 独特装饰组件 ============ */
/* 圆角波浪分隔 */
.wave-divider {
  position:relative;
  width:100%;
  height:80px;
  overflow:hidden;
}

.wave-divider svg {
  position:absolute; bottom:0; left:0; width:100%; height:100%;
}

/* 漂浮胶囊标签 */
.pill-badge {
  display:inline-block;
  background:#FFFFFF;
  border:2px solid #4ECDC4;
  color:#2D1B1B;
  padding:4px 16px;
  border-radius:50px;
  font-size:0.8rem;
  font-weight:600;
  margin:4px;
}

.pill-badge--orange { border-color:#FF6B4A; color:#FF6B4A; }

/* 大号序号数字 */
.big-number {
  font-size:5rem;
  font-weight:900;
  line-height:1;
  background:linear-gradient(135deg,rgba(255,107,74,0.2),rgba(78,205,196,0.2));
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  display:inline-block;
}

/* 圆点装饰 */
.dot-pattern {
  position:absolute;
  width:200px; height:200px;
  background-image: radial-gradient(circle, rgba(255,107,74,0.15) 2px, transparent 2px);
  background-size: 24px 24px;
  border-radius:50%;
}

/* ============ 响应式 ============ */
@media (max-width: 768px) {
  .feature-block { grid-template-columns:1fr; gap:36px; }

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

  .footer-grid { grid-template-columns:1fr 1fr; gap:32px; }

  .main-nav {
    display:none;
    flex-direction:column;
    position:absolute; top:72px; left:0; width:100%;
    background:rgba(255,248,240,0.98);
    padding:24px;
    gap:20px;
    border-bottom:2px solid #FFE8D6;
    box-shadow:0 20px 40px rgba(45,27,27,0.1);
    backdrop-filter:blur(20px);
  }

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

  .menu-toggle { display:flex; }

  .hero { min-height:auto; padding:140px 0 80px; }

  .hero h1 { font-size:2.4rem; }

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

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

  .cta-banner { padding:48px 24px; }

  .cta-banner h2 { font-size:1.8rem; }

  .cards-grid, .content-wall { grid-template-columns:1fr; }
}

@media (max-width: 480px) {
  .cards-grid, .content-wall, .stats-bar { grid-template-columns:1fr; }

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

  .hero-buttons { flex-direction:column; align-items:stretch; }
  .hero-buttons .btn { justify-content:center; }

  .hero h1 { font-size:2rem; letter-spacing:-1px; }

  .section-title { font-size:1.6rem; }

  .stat-number { font-size:2.2rem; }

  .header-inner { padding:0 16px; }

  .container { padding:0 16px; }

  .feature-block { gap:28px; }

  .footer-grid { gap:28px; }
}

/* ============ 动画 ============ */
@keyframes float {
  0%, 100% { transform:translateY(0); }
  50% { transform:translateY(-12px); }
}

@keyframes pulse {
  0%, 100% { transform:scale(1); }
  50% { transform:scale(1.04); }
}

.float-animation { animation:float 5s ease-in-out infinite; }

.pulse-animation { animation:pulse 3s ease-in-out infinite; }

/* 滚动条样式 */
::-webkit-scrollbar { width:10px; }
::-webkit-scrollbar-track { background:#FFF8F0; }
::-webkit-scrollbar-thumb {
  background:linear-gradient(180deg,#FF6B4A,#FF8A65);
  border-radius:50px;
}
::-webkit-scrollbar-thumb:hover {
  background:linear-gradient(180deg,#FF8A65,#FF6B4A);
}

/* 选择文本颜色 */
::selection { background:rgba(255,107,74,0.3); }

/* 链接的默认颜色在按钮外部 */
a:not(.btn):not(.nav-cta):not(.logo):not(.card-link):not(.footer-col a) { color:#FF6B4A; }