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

html { scroll-behavior: smooth; }

body {
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  overflow-x: hidden;
  background: #FFF9F2;
  color: #1F2E35;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

::selection { background: #FF7A50; color: #fff; }

/* 自定义滚动条 */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: #FFF3E8; }
::-webkit-scrollbar-thumb { background: #FFB59A; border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: #FF7A50; }

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

.section { padding: 90px 0; position: relative; }

.section:nth-child(even) {
  background: #FDF4EC;
}

/* 顶部导航 */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 249, 242, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 122, 80, 0.12);
  transition: box-shadow 0.3s ease;
}

.site-header::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, #FF7A50, #8FBD73, #FFE29A, #FF7A50);
  background-size: 200% 100%;
  animation: shimmer 6s ease infinite alternate;
  opacity: 0.6;
}

@keyframes shimmer {
  0% { background-position: 0% 0; }
  100% { background-position: 100% 0; }
}

.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: 1.25rem;
  text-decoration: none;
  color: #1F2E35;
  letter-spacing: -0.5px;
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 12px 4px 12px 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  background: linear-gradient(135deg, #FF7A50, #FF9A71);
  color: #fff;
  box-shadow: 0 4px 12px rgba(255, 122, 80, 0.3);
  transform: rotate(-3deg);
  transition: transform 0.3s ease;
}

.logo:hover .logo-icon {
  transform: rotate(3deg) scale(1.05);
}

.logo span {
  background: linear-gradient(120deg, #FF7A50, #275D6E);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.main-nav li { position: relative; }

.main-nav a {
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  color: #4A5A62;
  transition: color 0.2s;
  padding: 6px 0;
  position: relative;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: #FF7A50;
  border-radius: 4px;
  transition: width 0.25s ease;
}

.main-nav a:hover {
  color: #FF7A50;
}

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

.nav-cta {
  padding: 10px 24px;
  border-radius: 12px 4px 12px 4px;
  background: linear-gradient(135deg, #FF7A50, #FFA07A);
  color: #fff !important;
  font-weight: 600;
  box-shadow: 0 4px 16px rgba(255, 122, 80, 0.35);
  transition: all 0.3s ease;
}

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

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 122, 80, 0.45);
  color: #fff !important;
}

.menu-toggle {
  display: none;
  cursor: pointer;
  background: none;
  border: none;
  padding: 8px;
  border-radius: 8px;
  color: #1F2E35;
}

.menu-toggle::before {
  content: '☰';
  font-size: 1.4rem;
  font-weight: 700;
}

/* 主页 Hero */
.hero {
  min-height: 85vh;
  display: flex;
  align-items: center;
  position: relative;
  padding: 120px 0 80px;
  background: linear-gradient(180deg, #FFF9F2 0%, #FFF0E6 100%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 10%;
  right: -60px;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 122, 80, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '●';
  position: absolute;
  top: 18%;
  right: 6%;
  font-size: 2.5rem;
  color: #8FBD73;
  opacity: 0.5;
  text-shadow: 0 0 24px rgba(143, 189, 115, 0.4);
  animation: pulse-dot 3s ease infinite;
}

@keyframes pulse-dot {
  0%, 100% { transform: scale(1); opacity: 0.5; }
  50% { transform: scale(1.3); opacity: 0.8; }
}

.hero-content {
  max-width: 720px;
  position: relative;
  z-index: 2;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 24px;
  margin-bottom: 20px;
  background: linear-gradient(120deg, rgba(255, 122, 80, 0.12), rgba(143, 189, 115, 0.12));
  color: #FF6A3D;
  border: 1px solid rgba(255, 122, 80, 0.2);
  letter-spacing: 0.8px;
}

.hero h1 {
  font-size: 3.2rem;
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -1.5px;
  color: #1F2E35;
}

.hero h1::after {
  content: '';
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-left: 6px;
  border-radius: 50%;
  background: linear-gradient(45deg, #FF7A50, #FFB59A);
  animation: blink-dot 1.6s ease infinite;
}

@keyframes blink-dot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 122, 80, 0.5); }
  50% { box-shadow: 0 0 0 8px rgba(255, 122, 80, 0); }
}

.hero h1 em {
  font-style: normal;
  color: #FF7A50;
  position: relative;
}

.hero h1 em::before {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 0;
  width: 100%;
  height: 8px;
  background: rgba(255, 122, 80, 0.15);
  border-radius: 4px;
  z-index: -1;
}

.hero p {
  font-size: 1.1rem;
  opacity: 0.6;
  max-width: 560px;
  margin-bottom: 34px;
  color: #4A5A62;
  font-weight: 400;
}

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

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 12px 4px 12px 4px;
  font-weight: 600;
  font-size: 0.93rem;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  letter-spacing: 0.2px;
}

.btn-primary {
  background: linear-gradient(135deg, #FF7A50, #FF9A71);
  color: #fff;
  box-shadow: 0 6px 20px rgba(255, 122, 80, 0.38);
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 10px 28px rgba(255, 122, 80, 0.48);
}

.btn-outline {
  background: transparent;
  border: 1.5px solid #FF7A50;
  color: #FF7A50;
}

.btn-outline:hover {
  background: rgba(255, 122, 80, 0.08);
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(255, 122, 80, 0.15);
}

/* 标签与标题 */
.section-label {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 3px;
  margin-bottom: 14px;
  text-transform: uppercase;
  color: #FF7A50;
  position: relative;
  padding-left: 20px;
}

.section-label::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 12px;
  height: 3px;
  border-radius: 4px;
  background: linear-gradient(90deg, #FF7A50, #FFD6C4);
  transform: translateY(-50%);
}

.section-title {
  font-size: 2.2rem;
  font-weight: 900;
  margin-bottom: 14px;
  color: #1F2E35;
  letter-spacing: -0.5px;
  line-height: 1.2;
}

.section-desc {
  max-width: 600px;
  opacity: 0.6;
  margin-bottom: 44px;
  color: #4A5A62;
  font-size: 1rem;
}

/* 卡片网格 */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.category-card {
  border-radius: 24px 6px 24px 6px;
  padding: 30px 28px;
  background: #fff;
  border: 1px solid #F0E4D8;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 0;
  background: linear-gradient(180deg, #FF7A50, #FFD6C4);
  transition: height 0.35s ease;
}

.category-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(255, 122, 80, 0.12);
  border-color: rgba(255, 122, 80, 0.25);
}

.category-card:hover::before {
  height: 100%;
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 16px 4px 16px 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.4rem;
  background: linear-gradient(135deg, rgba(255, 122, 80, 0.12), rgba(143, 189, 115, 0.12));
  color: #FF7A50;
  transition: transform 0.3s ease;
}

.category-card:hover .card-icon {
  transform: scale(1.1) rotate(-5deg);
}

.card-link {
  font-weight: 700;
  font-size: 0.85rem;
  text-decoration: none;
  color: #FF7A50;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  transition: gap 0.2s;
}

.card-link:hover { gap: 10px; }

/* 特性块 */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.feature-image {
  border-radius: 30px 8px 30px 8px;
  overflow: hidden;
  position: relative;
  background: linear-gradient(135deg, #FFE8DC, #F5EDE0);
  box-shadow: 0 12px 40px rgba(39, 93, 110, 0.08);
  transform: rotate(-1deg);
  transition: transform 0.4s ease;
}

.feature-image::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -20%;
  width: 80%;
  height: 80%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 122, 80, 0.15), transparent 70%);
}

.feature-image:hover {
  transform: rotate(0deg) scale(1.02);
}

.feature-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.feature-text { position: relative; z-index: 2; }

.feature-text .section-title { font-size: 1.85rem; }

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

.feature-list li {
  padding: 10px 0;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  color: #3A4A52;
  border-bottom: 1px dashed #E8D8CC;
}

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

.feature-list li::before {
  content: '✓';
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: rgba(143, 189, 115, 0.2);
  color: #6A9E4E;
  flex-shrink: 0;
  font-size: 0.8rem;
}

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

.stat-item {
  padding: 32px 20px;
  border-radius: 24px 6px 24px 6px;
  background: #fff;
  border: 1px solid #F0E4D8;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.stat-item::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 3px;
  border-radius: 2px;
  background: linear-gradient(90deg, #FF7A50, #8FBD73);
  transition: width 0.4s ease;
}

.stat-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 28px rgba(39, 93, 110, 0.1);
}

.stat-item:hover::after {
  width: 60%;
}

.stat-number {
  font-size: 2.6rem;
  font-weight: 900;
  color: #FF7A50;
  letter-spacing: -1px;
  line-height: 1.2;
}

.stat-label {
  font-size: 0.9rem;
  opacity: 0.55;
  margin-top: 6px;
  color: #4A5A62;
  font-weight: 500;
}

/* 内容墙 */
.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.content-wall-item {
  border-radius: 24px 6px 24px 6px;
  overflow: hidden;
  background: #fff;
  border: 1px solid #F0E4D8;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.content-wall-item:hover {
  transform: translateY(-5px) rotate(-0.5deg);
  box-shadow: 0 15px 36px rgba(255, 122, 80, 0.14);
}

.content-wall-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform 0.6s ease;
}

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

.content-wall-body {
  padding: 20px 22px;
}

.content-wall-body h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: #1F2E35;
}

.content-wall-body p {
  font-size: 0.88rem;
  opacity: 0.6;
  color: #4A5A62;
}

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

.faq-item {
  border: 1px solid #ECDFD3;
  border-radius: 20px 4px 20px 4px;
  margin-bottom: 10px;
  overflow: hidden;
  background: #fff;
  transition: all 0.3s ease;
}

.faq-item:hover {
  border-color: rgba(255, 122, 80, 0.3);
  box-shadow: 0 4px 14px rgba(255, 122, 80, 0.06);
}

.faq-item.open {
  border-color: rgba(255, 122, 80, 0.22);
  box-shadow: 0 6px 20px rgba(255, 122, 80, 0.08);
}

.faq-item .faq-question {
  padding: 18px 24px;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.95rem;
  color: #1F2E35;
  cursor: pointer;
}

.faq-item .faq-question::after {
  content: '+';
  font-size: 1.4rem;
  color: #FF7A50;
  font-weight: 400;
  transition: transform 0.25s ease;
}

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

.faq-item .faq-answer {
  padding: 0 24px 18px;
  display: none;
  opacity: 0.65;
  color: #4A5A62;
  font-size: 0.92rem;
  line-height: 1.8;
}

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

@keyframes fade-in {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 0.65; transform: translateY(0); }
}

/* CTA横幅 */
.cta-banner {
  padding: 64px 48px;
  text-align: center;
  border-radius: 30px 8px 30px 8px;
  background: linear-gradient(135deg, #FF7A50, #FF9A71, #FFB59A);
  color: #fff;
  position: relative;
  overflow: hidden;
  box-shadow: 0 16px 48px rgba(255, 122, 80, 0.3);
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -20%;
  width: 70%;
  height: 200%;
  background: rgba(255, 255, 255, 0.12);
  transform: rotate(30deg);
  transition: left 0.5s ease;
}

.cta-banner:hover::before {
  left: 30%;
}

.cta-banner::after {
  content: '▶';
  position: absolute;
  bottom: 20%;
  left: 10%;
  font-size: 3rem;
  opacity: 0.1;
  color: #fff;
}

.cta-banner h2 {
  color: #fff;
  font-size: 2.2rem;
  font-weight: 900;
  margin-bottom: 12px;
  position: relative;
  z-index: 2;
  letter-spacing: -0.5px;
}

.cta-banner p {
  position: relative;
  z-index: 2;
  opacity: 0.9;
  max-width: 480px;
  margin: 0 auto 32px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.95rem;
}

.cta-banner .btn-primary {
  background: #fff;
  color: #FF6A3D;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
  position: relative;
  z-index: 2;
}

.cta-banner .btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

/* 页脚 */
.site-footer {
  padding: 64px 0 28px;
  background: #275D6E;
  color: rgba(255, 255, 255, 0.85);
}

.site-footer .container { }

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

.footer-brand { }

.footer-brand .logo {
  color: #fff;
  margin-bottom: 14px;
}

.footer-brand .logo-icon {
  background: linear-gradient(135deg, #FF7A50, #FFB59A);
  color: #fff;
}

.footer-brand p {
  font-size: 0.92rem;
  opacity: 0.65;
  max-width: 260px;
  line-height: 1.8;
}

.footer-col h4 {
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 16px;
  color: #fff;
  opacity: 0.9;
}

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

.footer-col ul li {
  padding: 5px 0;
}

.footer-col ul a {
  color: rgba(255, 255, 255, 0.65);
  text-decoration: none;
  font-size: 0.88rem;
  transition: color 0.2s, padding-left 0.2s;
}

.footer-col ul a:hover {
  color: #FFB59A;
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: 48px;
  padding-top: 20px;
  text-align: center;
  font-size: 0.85rem;
  opacity: 0.5;
}

/* 工具类 */
.text-accent {
  color: #FF7A50;
  font-weight: 700;
}

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

.seo-description {
  max-width: 600px;
  margin: 0 auto 48px;
  opacity: 0.6;
  color: #4A5A62;
  font-size: 0.95rem;
  line-height: 1.8;
}

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

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

/* 响应式 */
@media (max-width: 768px) {
  .feature-block { grid-template-columns: 1fr; gap: 40px; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .hero { padding-top: 120px; }
  .hero h1 { font-size: 2.2rem; }
  .section { padding: 64px 0; }

  .main-nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background: rgba(255, 249, 242, 0.97);
    backdrop-filter: blur(12px);
    padding: 24px 32px;
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
    border-bottom: 1px solid rgba(255, 122, 80, 0.15);
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.08);
  }

  .main-nav.open {
    display: flex;
    animation: nav-drop 0.3s ease;
  }

  @keyframes nav-drop {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
  }

  .main-nav .nav-cta {
    color: #fff !important;
  }

  .menu-toggle { display: flex; align-items: center; justify-content: center; width: 44px; height: 44px; }

  .cta-banner {
    padding: 48px 28px;
    border-radius: 24px 6px 24px 6px;
  }

  .cta-banner h2 { font-size: 1.7rem; }
}

@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; }
  .hero { padding-top: 110px; }
  .hero h1 { font-size: 1.75rem; }
  .section-title { font-size: 1.6rem; }
  .stat-number { font-size: 2.2rem; }
  .cta-banner h2 { font-size: 1.4rem; }
  .cta-banner::before { display: none; }
  .cta-banner { padding: 40px 20px; }
  .header-inner { padding: 0 16px; }
  .container { padding: 0 16px; }
}