/* ============================================
   仙逆 · 灵韵东方设计系统
   浅色宣纸 × 松针青 × 朱砂丹
   ============================================ */

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

body {
  font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  background-color: #F8F5F1;
  background-image:
    radial-gradient(ellipse at 12% 18%, rgba(43, 107, 93, 0.05) 0%, transparent 55%),
    radial-gradient(ellipse at 88% 72%, rgba(212, 182, 138, 0.07) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 100%, rgba(196, 80, 42, 0.03) 0%, transparent 60%);
  color: #2E2A27;
  line-height: 1.7;
  overflow-x: hidden;
  font-weight: 400;
  letter-spacing: 0.01em;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  background-image:
    repeating-linear-gradient(0deg, transparent 0px, transparent 2px, rgba(0, 0, 0, 0.008) 2px, rgba(0, 0, 0, 0.008) 4px);
  opacity: 0.6;
}

/* ——— 核心布局 ——— */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
  position: relative;
  z-index: 1;
}

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

.section:nth-child(even) {
  background:
    radial-gradient(ellipse at 80% 30%, rgba(43, 107, 93, 0.04), transparent 60%),
    linear-gradient(180deg, #EBEFEB, #E4EAE6);
  border-top: 1px solid rgba(43, 107, 93, 0.06);
  border-bottom: 1px solid rgba(43, 107, 93, 0.06);
}

.section::before {
  content: '◆';
  position: absolute;
  top: 32px;
  left: 4px;
  font-size: 0.7rem;
  color: rgba(196, 80, 42, 0.35);
  letter-spacing: 8px;
}

/* ——— 导航 ——— */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(248, 245, 241, 0.86);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(43, 107, 93, 0.12);
  box-shadow: 0 1px 24px rgba(43, 107, 93, 0.04);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  font-size: 1.35rem;
  text-decoration: none;
  color: #1D4A3D;
  letter-spacing: 3px;
  line-height: 1;
}

.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 14px 4px 14px 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 900;
  background: linear-gradient(145deg, #2B6B5D, #1A4A3F);
  color: #F8F5F1;
  box-shadow: 0 4px 16px rgba(43, 107, 93, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.15);
  transform: rotate(-3deg);
  transition: transform 0.3s ease;
}

.logo:hover .logo-icon {
  transform: rotate(0deg) scale(1.05);
}

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

.main-nav a {
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 500;
  color: #2E2A27;
  padding: 4px 0;
  position: relative;
  letter-spacing: 0.5px;
  transition: color 0.25s ease;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, #2B6B5D, #C4502A);
  transition: width 0.32s cubic-bezier(0.65, 0, 0.35, 1);
}

.main-nav a:hover {
  color: #2B6B5D;
}

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

.nav-cta {
  padding: 10px 24px !important;
  border-radius: 100px !important;
  color: #fff !important;
  background: linear-gradient(135deg, #C4502A, #E2703C);
  font-weight: 600 !important;
  box-shadow: 0 4px 18px rgba(196, 80, 42, 0.3);
  letter-spacing: 0.5px !important;
  transition: transform 0.25s ease, box-shadow 0.25s ease !important;
}

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

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(196, 80, 42, 0.35);
  color: #fff !important;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: transparent;
  border: 1.5px solid rgba(43, 107, 93, 0.25);
  color: #2B6B5D;
  font-size: 1.2rem;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease;
}

.menu-toggle:hover {
  background: rgba(43, 107, 93, 0.08);
}

/* ——— Hero ——— */

.hero {
  min-height: 88vh;
  display: flex;
  align-items: center;
  padding: 140px 0 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 30px;
  right: 60px;
  width: 380px;
  height: 380px;
  border: 1.5px solid rgba(43, 107, 93, 0.12);
  border-radius: 50%;
  box-shadow:
    0 0 0 40px rgba(43, 107, 93, 0.02),
    0 0 0 90px rgba(43, 107, 93, 0.015),
    inset 0 0 60px rgba(43, 107, 93, 0.02);
  animation: xianFloat 8s ease-in-out infinite;
  pointer-events: none;
}

@keyframes xianFloat {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.04) rotate(2deg); opacity: 0.8; }
}

.hero .container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
  align-items: center;
}

.hero-content {
  max-width: 640px;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 3px;
  padding: 7px 20px;
  border-radius: 100px;
  margin-bottom: 22px;
  background: linear-gradient(135deg, rgba(43, 107, 93, 0.1), rgba(43, 107, 93, 0.04));
  color: #2B6B5D;
  border: 1px solid rgba(43, 107, 93, 0.2);
  text-transform: uppercase;
  position: relative;
}

.hero-eyebrow::before {
  content: '〇';
  font-size: 0.6rem;
  margin-right: 8px;
  color: #C4502A;
}

.hero h1 {
  font-size: clamp(2.6rem, 5.2vw, 4rem);
  line-height: 1.15;
  margin-bottom: 24px;
  font-weight: 900;
  letter-spacing: 2px;
  color: #1D4A3D;
  text-shadow: 0 2px 30px rgba(43, 107, 93, 0.08);
}

.hero p {
  font-size: 1.08rem;
  opacity: 0.68;
  max-width: 540px;
  margin-bottom: 36px;
  line-height: 1.85;
  font-weight: 400;
}

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

/* Hero 仙山视觉 */

.hero-image {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  min-height: 430px;
  background: linear-gradient(165deg, #D8E6E0 0%, #A8C8BC 45%, #6E9C8D 100%);
  box-shadow: 0 20px 60px rgba(43, 107, 93, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-image::before {
  content: '';
  position: absolute;
  bottom: -20px;
  left: -15%;
  width: 75%;
  height: 40%;
  background: linear-gradient(135deg, transparent 48%, rgba(29, 74, 61, 0.55) 48%, rgba(29, 74, 61, 0.65) 100%);
  border-radius: 60% 0 0 0;
  opacity: 0.6;
  filter: blur(1px);
}

.hero-image::after {
  content: '';
  position: absolute;
  bottom: -10px;
  right: -20%;
  width: 85%;
  height: 30%;
  background: linear-gradient(225deg, transparent 50%, rgba(196, 80, 42, 0.35) 50%, rgba(196, 80, 42, 0.4) 100%);
  border-radius: 0 50% 0 0;
  opacity: 0.5;
}

.hero-image img {
  width: auto;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: 0;
}

.hero-image .hero-badge {
  position: absolute;
  top: 24px;
  left: 24px;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(8px);
  padding: 8px 16px;
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 700;
  color: #2B6B5D;
  border: 1px solid rgba(255, 255, 255, 0.4);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  letter-spacing: 1px;
}

/* ——— 按钮 ——— */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: 12px;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.65, 0, 0.35, 1);
  letter-spacing: 0.5px;
  line-height: 1;
}

.btn-primary {
  background: linear-gradient(145deg, #2B6B5D, #1D4A3D);
  color: #F8F5F1;
  box-shadow: 0 6px 24px rgba(43, 107, 93, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.1);
  border-radius: 24px 10px 24px 10px;
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.18), transparent);
  transition: left 0.5s ease;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(43, 107, 93, 0.42);
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-outline {
  background: transparent;
  border: 2px solid #C4502A;
  color: #C4502A;
  border-radius: 10px 24px 10px 24px;
  transition: all 0.3s ease;
}

.btn-outline:hover {
  background: rgba(196, 80, 42, 0.06);
  transform: translateY(-2px);
  border-color: #B03E1F;
  color: #B03E1F;
  box-shadow: 0 6px 20px rgba(196, 80, 42, 0.15);
}

/* ——— 标签 / 标题 ——— */

.section-label {
  display: inline-block;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 4px;
  margin-bottom: 14px;
  color: #C4502A;
  padding: 6px 18px 6px 0;
  line-height: 1.2;
  text-transform: uppercase;
}

.section-label::after {
  content: '';
  display: inline-block;
  width: 28px;
  height: 1.5px;
  background: linear-gradient(90deg, #C4502A, transparent);
  margin-left: 12px;
  vertical-align: middle;
}

.section-title {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  margin-bottom: 16px;
  font-weight: 900;
  letter-spacing: 1px;
  color: #1D4A3D;
  position: relative;
  line-height: 1.3;
}

.section-title::after {
  content: '✦';
  font-size: 0.5em;
  color: #C4502A;
  margin-left: 12px;
  vertical-align: middle;
  font-weight: 400;
}

.section-desc {
  max-width: 620px;
  opacity: 0.65;
  margin-bottom: 48px;
  font-size: 1rem;
  line-height: 1.8;
}

/* ——— 卡片网格 ——— */

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 24px;
}

.category-card {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(6px);
  border-radius: 18px;
  padding: 32px 28px;
  border: 1px solid rgba(43, 107, 93, 0.08);
  position: relative;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, #2B6B5D, #C4502A, transparent);
  opacity: 0.25;
  transition: opacity 0.3s ease;
}

.category-card::after {
  content: '';
  position: absolute;
  right: -30px;
  top: -30px;
  width: 90px;
  height: 90px;
  background: radial-gradient(circle, rgba(43, 107, 93, 0.06), transparent 70%);
  border-radius: 50%;
  transition: transform 0.4s ease;
}

.category-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 36px rgba(43, 107, 93, 0.12);
  border-color: rgba(43, 107, 93, 0.18);
}

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

.category-card:hover::after {
  transform: scale(1.4);
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 16px 6px 16px 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.35rem;
  background: linear-gradient(145deg, rgba(43, 107, 93, 0.12), rgba(43, 107, 93, 0.05));
  border: 1px solid rgba(43, 107, 93, 0.12);
  color: #2B6B5D;
  transition: all 0.3s ease;
}

.category-card:hover .card-icon {
  background: linear-gradient(145deg, #2B6B5D, #1D4A3D);
  color: #F8F5F1;
  transform: rotate(-4deg);
  box-shadow: 0 6px 16px rgba(43, 107, 93, 0.3);
}

.category-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: #1D4A3D;
}

.category-card p {
  font-size: 0.85rem;
  opacity: 0.6;
  margin-bottom: 18px;
  line-height: 1.6;
}

.card-link {
  font-weight: 700;
  font-size: 0.82rem;
  text-decoration: none;
  color: #C4502A;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.3s ease;
}

.card-link::after {
  content: '→';
  font-size: 1em;
}

.card-link:hover {
  gap: 12px;
  color: #B03E1F;
}

/* ——— 特性块 ——— */

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

.feature-image {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  min-height: 340px;
  background: linear-gradient(160deg, #C5DCD4, #8FB8AA);
  box-shadow: 0 16px 50px rgba(43, 107, 93, 0.2);
}

.feature-image::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 30% 70%, rgba(255, 255, 255, 0.25), transparent 50%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), transparent 60%);
}

.feature-image::after {
  content: '✦ 天地灵机';
  position: absolute;
  bottom: 24px;
  left: 24px;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(6px);
  padding: 8px 16px;
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 600;
  color: #1D4A3D;
  letter-spacing: 2px;
}

.feature-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: relative;
  z-index: 1;
}

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

.feature-text h3 {
  font-size: 1.5rem;
  font-weight: 800;
  color: #1D4A3D;
  margin-bottom: 16px;
  line-height: 1.4;
}

.feature-text p {
  opacity: 0.65;
  margin-bottom: 24px;
  line-height: 1.8;
}

.feature-list {
  list-style: none;
  margin-top: 8px;
}

.feature-list li {
  padding: 8px 0;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
  font-weight: 500;
  color: #2E2A27;
  border-bottom: 1px dashed rgba(43, 107, 93, 0.12);
}

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

.feature-list li::before {
  content: '✓';
  font-weight: 700;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(43, 107, 93, 0.1);
  color: #2B6B5D;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  flex-shrink: 0;
}

/* ——— 数据条 ——— */

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

.stat-item {
  padding: 36px 24px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(43, 107, 93, 0.08);
  position: relative;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stat-item::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, transparent, #C4502A, transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(43, 107, 93, 0.1);
}

.stat-item:hover::after {
  opacity: 1;
}

.stat-number {
  font-size: clamp(2.2rem, 3vw, 3rem);
  font-weight: 900;
  line-height: 1;
  margin-bottom: 8px;
  background: linear-gradient(145deg, #2B6B5D, #1D4A3D);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  display: inline-block;
}

.stat-label {
  font-size: 0.88rem;
  opacity: 0.6;
  margin-top: 8px;
  font-weight: 500;
  letter-spacing: 1px;
}

/* ——— 内容墙 ——— */

.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 28px;
}

.content-wall-item {
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid rgba(0, 0, 0, 0.05);
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(4px);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
}

.content-wall-item:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 44px rgba(43, 107, 93, 0.14);
}

.content-wall-item img {
  width: 100%;
  height: 210px;
  object-fit: cover;
  background: linear-gradient(145deg, #D8E6E0, #A8C8BC);
  display: block;
  transition: transform 0.5s ease;
}

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

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

.content-wall-body h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: #1D4A3D;
  line-height: 1.4;
}

.content-wall-body p {
  font-size: 0.84rem;
  opacity: 0.58;
  line-height: 1.6;
  margin-bottom: 14px;
}

.content-wall-tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 600;
  background: rgba(196, 80, 42, 0.08);
  color: #C4502A;
  letter-spacing: 0.5px;
}

/* ——— FAQ ——— */

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

.faq-item {
  background: rgba(255, 255, 255, 0.68);
  border: 1px solid rgba(43, 107, 93, 0.1);
  border-radius: 14px;
  margin-bottom: 10px;
  overflow: hidden;
  cursor: pointer;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.faq-item:hover {
  border-color: rgba(43, 107, 93, 0.2);
}

.faq-item.open {
  border-color: rgba(43, 107, 93, 0.25);
  box-shadow: 0 4px 20px rgba(43, 107, 93, 0.06);
}

.faq-item .faq-question {
  padding: 18px 24px;
  font-weight: 600;
  font-size: 0.96rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #1D4A3D;
  letter-spacing: 0.3px;
  transition: color 0.3s ease;
}

.faq-item.open .faq-question {
  color: #2B6B5D;
}

.faq-item .faq-question::after {
  content: '▾';
  font-size: 0.9rem;
  color: #C4502A;
  transition: transform 0.35s ease;
  flex-shrink: 0;
  margin-left: 16px;
}

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

.faq-item .faq-answer {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  padding: 0 24px;
  transition: max-height 0.4s ease, opacity 0.35s ease, padding 0.4s ease;
}

.faq-item.open .faq-answer {
  max-height: 300px;
  opacity: 0.65;
  padding: 0 24px 20px;
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ——— CTA 横幅 ——— */

.cta-banner {
  padding: 64px 56px;
  text-align: center;
  border-radius: 24px;
  background: linear-gradient(145deg, #2B6B5D, #1D4A3D, #234F42);
  color: #F8F5F1;
  position: relative;
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(43, 107, 93, 0.35);
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -40px;
  width: 260px;
  height: 260px;
  border: 2px solid rgba(255, 255, 255, 0.08);
  border-radius: 50%;
  box-shadow:
    0 0 0 30px rgba(255, 255, 255, 0.02),
    0 0 0 60px rgba(255, 255, 255, 0.01);
}

.cta-banner::after {
  content: '仙';
  position: absolute;
  bottom: 10px;
  left: 30px;
  font-size: 12rem;
  font-weight: 900;
  color: rgba(255, 255, 255, 0.03);
  line-height: 1;
  pointer-events: none;
}

.cta-banner h2 {
  color: #F8F5F1;
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}

.cta-banner h2::after {
  display: none;
}

.cta-banner p {
  color: rgba(248, 245, 241, 0.8);
  max-width: 460px;
  margin: 0 auto 28px;
  position: relative;
  z-index: 1;
  line-height: 1.7;
}

.cta-banner .btn-primary {
  background: #F8F5F1;
  color: #2B6B5D;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
  position: relative;
  z-index: 1;
  border-radius: 30px 12px 30px 12px;
}

.cta-banner .btn-primary::before {
  background: linear-gradient(90deg, transparent, rgba(43, 107, 93, 0.1), transparent);
}

.cta-banner .btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.25);
}

/* ——— FAQ 区域居中标题 ——— */

.faq-list + .text-center {
  margin-top: 40px;
}

/* ——— 页脚 ——— */

.site-footer {
  background: #EBE6DC;
  padding: 64px 0 28px;
  border-top: 1px solid rgba(43, 107, 93, 0.08);
  background-image:
    radial-gradient(ellipse at 80% 20%, rgba(43, 107, 93, 0.03), transparent 50%),
    radial-gradient(ellipse at 10% 80%, rgba(196, 80, 42, 0.02), transparent 40%);
}

.site-footer .container {
  max-width: 1200px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
}

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

.footer-brand p {
  font-size: 0.88rem;
  opacity: 0.6;
  max-width: 300px;
  line-height: 1.7;
}

.footer-col h4 {
  font-size: 0.88rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: #1D4A3D;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  position: relative;
  padding-bottom: 8px;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 2px;
  background: linear-gradient(90deg, #C4502A, transparent);
}

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

.footer-col ul li {
  margin-bottom: 10px;
  font-size: 0.88rem;
  opacity: 0.65;
  transition: opacity 0.2s ease, padding-left 0.2s ease;
}

.footer-col ul li:hover {
  opacity: 1;
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(46, 42, 39, 0.1);
  margin-top: 20px;
  padding-top: 24px;
  text-align: center;
  font-size: 0.82rem;
  color: rgba(46, 42, 39, 0.55);
  letter-spacing: 0.5px;
  line-height: 1.6;
}

/* ——— 工具类 ——— */

.text-accent {
  color: #C4502A;
  font-weight: 700;
  font-style: italic;
  letter-spacing: 0.5px;
}

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

.seo-description {
  max-width: 620px;
  margin: 0 auto 56px;
  opacity: 0.65;
  line-height: 1.8;
  font-size: 0.92rem;
}

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

/* ——— 响应式 ——— */

@media (max-width: 1024px) {
  .hero .container {
    gap: 40px;
  }

  .hero-image {
    min-height: 360px;
  }
}

@media (max-width: 860px) {
  .section {
    padding: 80px 0;
  }

  .hero .container {
    grid-template-columns: 1fr;
    gap: 48px;
  }

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

  .hero-eyebrow {
    margin-left: auto;
    margin-right: auto;
  }

  .hero p {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-buttons {
    justify-content: center;
  }

  .hero-image {
    min-height: 300px;
  }

  .feature-block {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .feature-image {
    order: -1;
  }

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

  .feature-list {
    text-align: left;
    max-width: 360px;
    margin: 0 auto;
  }

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

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}

@media (max-width: 768px) {
  .header-inner {
    height: 64px;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    width: 100%;
    background: rgba(248, 245, 241, 0.98);
    backdrop-filter: blur(20px);
    padding: 24px 32px;
    flex-direction: column;
    gap: 18px;
    border-bottom: 1px solid rgba(43, 107, 93, 0.12);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.06);
    animation: navFadeIn 0.3s ease;
  }

  @keyframes navFadeIn {
    from { opacity: 0; transform: translateY(-12px); }
    to { opacity: 1; transform: translateY(0); }
  }

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

  .main-nav a {
    width: fit-content;
    font-size: 1rem;
  }

  .nav-cta {
    margin-top: 4px;
  }

  .menu-toggle {
    display: flex;
  }

  .menu-toggle .icon-close {
    display: none;
  }

  .menu-toggle.open .icon-open { display: none; }
  .menu-toggle.open .icon-close { display: block; }

  .hero {
    padding: 110px 0 60px;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .hero-image {
    min-height: 260px;
  }

  .cta-banner {
    padding: 48px 32px;
  }

  .cta-banner h2 {
    font-size: 1.5rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 20px;
  }

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

  .stats-bar {
    gap: 16px;
  }

  .stat-item {
    padding: 28px 16px;
  }

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

  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-buttons .btn {
    justify-content: center;
  }

  .hero-image {
    min-height: 220px;
  }

  .hero-image .hero-badge {
    top: 16px;
    left: 16px;
    font-size: 0.72rem;
    padding: 6px 12px;
  }

  .section {
    padding: 64px 0;
  }

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

  .logo {
    font-size: 1.15rem;
  }

  .logo-icon {
    width: 34px;
    height: 34px;
    font-size: 1rem;
  }

  .cta-banner {
    padding: 40px 24px;
    border-radius: 18px;
  }

  .cta-banner::after {
    font-size: 8rem;
    bottom: 20px;
  }

  .feature-block {
    gap: 32px;
  }

  .feature-image {
    min-height: 240px;
  }

  .feature-text h3 {
    font-size: 1.2rem;
  }
}