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

/* ============================================
   蜜桃动漫 · 甜满次元
   设计概念：蜜桃流体 × 有机次元
   主色调：蜜桃珊瑚 #FF7E5F → 蜜桃粉 #FFB49A
   背景：奶油白 #FFF9F2
   ============================================ */

:root {
  --peach-primary: #FF7E5F;
  --peach-secondary: #FFB49A;
  --peach-light: #FFE4D6;
  --peach-deep: #F05A38;
  --cream-bg: #FFF9F2;
  --cream-card: #FFFFFF;
  --mint: #6ED4B3;
  --lavender: #B8A9E8;
  --lemon: #FFD93D;
  --text-deep: #3D2B22;
  --text-soft: rgba(61, 43, 34, 0.62);
  --card-radius-lg: 28px;
  --card-radius-md: 20px;
  --shadow-soft: 0 10px 40px rgba(255, 126, 95, 0.10);
  --shadow-hover: 0 20px 60px rgba(255, 126, 95, 0.20);
  --peach-grad: linear-gradient(135deg, #FF7E5F 0%, #FFB49A 60%, #FFD6C0 100%);
  --peach-grad-soft: linear-gradient(135deg, rgba(255,126,95,0.08) 0%, rgba(255,180,154,0.12) 100%);
}

/* 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: var(--cream-bg);
  color: var(--text-deep);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--peach-primary);
  color: #fff;
}

/* 滚动条 */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--cream-bg); }
::-webkit-scrollbar-thumb { background: var(--peach-secondary); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--peach-primary); }

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

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

.section:nth-child(even) {
  background: linear-gradient(180deg, #FFF4EC 0%, #FFEDE3 50%, #FFF4EC 100%);
}

/* ========== 导航 ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 249, 242, 0.82);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255, 180, 154, 0.25);
  transition: all 0.4s ease;
}

.site-header.scrolled {
  box-shadow: 0 4px 30px rgba(255, 126, 95, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 900;
  font-size: 1.35rem;
  text-decoration: none;
  color: var(--text-deep);
  letter-spacing: -0.5px;
  position: relative;
}

.logo-icon {
  width: 42px;
  height: 42px;
  border-radius: 50% 50% 50% 50% / 55% 55% 45% 45%;
  background: var(--peach-grad);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: #fff;
  box-shadow: 0 4px 12px rgba(255, 126, 95, 0.35);
  position: relative;
}

.logo-icon::after {
  content: '';
  position: absolute;
  top: -4px;
  left: 50%;
  transform: translateX(-50%);
  width: 10px;
  height: 7px;
  background: rgba(255,255,255,0.8);
  border-radius: 50%;
}

.logo span {
  background: var(--peach-grad);
  -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 a {
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-deep);
  transition: all 0.3s ease;
  position: relative;
  padding: 4px 0;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--peach-grad);
  border-radius: 2px;
  transition: width 0.3s ease;
}

.main-nav a:hover {
  color: var(--peach-primary);
}

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

.nav-cta {
  padding: 10px 24px !important;
  border-radius: 50px;
  background: var(--peach-grad);
  color: #fff !important;
  font-weight: 600;
  box-shadow: 0 4px 16px rgba(255, 126, 95, 0.35);
  transition: all 0.3s ease !important;
}

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

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 126, 95, 0.45);
  color: #fff !important;
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: none;
  background: var(--peach-grad);
  border-radius: 50%;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.2rem;
  color: #fff;
  box-shadow: 0 4px 12px rgba(255,126,95,0.3);
}

/* ========== Hero ========== */
.hero {
  min-height: 92vh;
  display: flex;
  align-items: center;
  position: relative;
  padding: 140px 0 80px;
  background:
    radial-gradient(circle at 85% 20%, rgba(255, 180, 154, 0.28) 0%, transparent 45%),
    radial-gradient(circle at 15% 75%, rgba(255, 214, 192, 0.3) 0%, transparent 40%),
    radial-gradient(circle at 50% 100%, rgba(168, 230, 207, 0.18) 0%, transparent 45%),
    var(--cream-bg);
  overflow: hidden;
}

.hero::before {
  content: '🍑';
  position: absolute;
  top: 15%;
  right: 8%;
  font-size: 8rem;
  opacity: 0.12;
  transform: rotate(15deg);
  animation: float 6s ease-in-out infinite;
}

.hero::after {
  content: '✦';
  position: absolute;
  bottom: 20%;
  left: 5%;
  font-size: 3rem;
  opacity: 0.15;
  animation: twinkle 4s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(15deg); }
  50% { transform: translateY(-24px) rotate(8deg); }
}

@keyframes twinkle {
  0%, 100% { opacity: 0.12; transform: scale(1); }
  50% { opacity: 0.3; transform: scale(1.2); }
}

.hero-content {
  max-width: 760px;
  position: relative;
  z-index: 2;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 6px 20px;
  border-radius: 50px;
  background: var(--peach-grad);
  color: #fff;
  letter-spacing: 1px;
  margin-bottom: 20px;
  box-shadow: 0 4px 14px rgba(255,126,95,0.3);
  text-transform: uppercase;
}

.hero h1 {
  font-size: 3.6rem;
  line-height: 1.15;
  margin-bottom: 24px;
  font-weight: 900;
  letter-spacing: -1.5px;
  color: var(--text-deep);
}

.hero h1 .grad-text {
  background: var(--peach-grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
  display: inline-block;
}

.hero p {
  font-size: 1.15rem;
  opacity: 0.7;
  max-width: 560px;
  margin-bottom: 36px;
  line-height: 1.9;
  color: var(--text-deep);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.3s ease;
}

.btn-primary {
  background: var(--peach-grad);
  color: #fff;
  box-shadow: 0 6px 20px rgba(255, 126, 95, 0.35);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(255, 126, 95, 0.45);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--peach-primary);
  color: var(--peach-primary);
}

.btn-outline:hover {
  background: var(--peach-primary);
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(255,126,95,0.25);
}

.hero-image {
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  transform: perspective(800px) rotateY(-8deg);
  transition: transform 0.5s ease, box-shadow 0.5s ease;
}

.hero-image:hover {
  transform: perspective(800px) rotateY(-3deg) translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.hero-image img {
  width: 100%;
  height: auto;
  display: block;
}

/* ========== 标签/标题 ========== */
.section-label {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--peach-primary);
  margin-bottom: 14px;
  position: relative;
  padding-left: 20px;
}

.section-label::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--peach-grad);
  box-shadow: 0 0 0 4px rgba(255,126,95,0.15);
}

.section-title {
  font-size: 2.4rem;
  margin-bottom: 16px;
  font-weight: 900;
  letter-spacing: -0.8px;
  line-height: 1.3;
  color: var(--text-deep);
  position: relative;
}

.section-title::after {
  content: '🍑';
  display: inline-block;
  font-size: 1.6rem;
  margin-left: 8px;
  opacity: 0.7;
}

.section-desc {
  max-width: 600px;
  opacity: 0.7;
  margin-bottom: 48px;
  font-size: 1.02rem;
  line-height: 1.9;
}

/* ========== 卡片网格 ========== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 28px;
}

.category-card {
  border-radius: var(--card-radius-lg);
  padding: 32px 28px;
  background: var(--cream-card);
  border: 1px solid rgba(255, 180, 154, 0.2);
  transition: all 0.4s cubic-bezier(0.25, 0.8, 0.35, 1);
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: var(--peach-grad-soft);
  transition: transform 0.5s ease;
  z-index: 0;
}

.category-card::after {
  content: '🍑';
  position: absolute;
  bottom: -10px;
  right: 16px;
  font-size: 2rem;
  opacity: 0.08;
  transform: rotate(20deg);
  transition: transform 0.4s ease, opacity 0.4s ease;
}

.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: transparent;
}

.category-card:hover::before {
  transform: scale(1.6);
}

.category-card:hover::after {
  opacity: 0.2;
  transform: rotate(0deg) scale(1.2);
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: 18px;
  background: var(--peach-grad);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.5rem;
  color: #fff;
  box-shadow: 0 6px 16px rgba(255,126,95,0.25);
  position: relative;
  z-index: 1;
}

.category-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
  position: relative;
  z-index: 1;
}

.category-card p {
  font-size: 0.88rem;
  opacity: 0.6;
  line-height: 1.7;
  position: relative;
  z-index: 1;
  margin-bottom: 16px;
}

.card-link {
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--peach-primary);
  text-decoration: none;
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.3s ease;
}

.card-link:hover {
  gap: 10px;
  color: var(--peach-deep);
}

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

.feature-image {
  border-radius: var(--card-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  position: relative;
}

.feature-image::after {
  content: '✦';
  position: absolute;
  top: 16px;
  right: 16px;
  font-size: 1.5rem;
  color: var(--peach-secondary);
  background: rgba(255,255,255,0.8);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

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

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

.feature-text {
  padding: 0 8px;
}

.feature-text h3 {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.4;
}

.feature-text > p {
  opacity: 0.7;
  font-size: 1rem;
  line-height: 1.9;
  margin-bottom: 24px;
}

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

.feature-list li {
  padding: 10px 0;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
  font-weight: 500;
  border-bottom: 1px solid rgba(255,180,154,0.1);
}

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

.feature-list li::before {
  content: '✓';
  font-weight: 700;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--mint);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  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;
  position: relative;
  z-index: 1;
}

.stats-bar::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--peach-secondary), transparent);
  z-index: -1;
  opacity: 0.4;
}

.stat-item {
  padding: 32px 24px;
  border-radius: var(--card-radius-lg);
  background: var(--cream-card);
  border: 1px solid rgba(255,180,154,0.18);
  box-shadow: var(--shadow-soft);
  transition: all 0.4s ease;
  position: relative;
}

.stat-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.stat-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 4px;
  border-radius: 0 0 4px 4px;
  background: var(--peach-grad);
}

.stat-number {
  font-size: 2.6rem;
  font-weight: 900;
  background: var(--peach-grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: var(--peach-primary);
  line-height: 1.2;
}

.stat-label {
  font-size: 0.9rem;
  opacity: 0.65;
  margin-top: 8px;
  font-weight: 500;
  letter-spacing: 0.5px;
}

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

.content-wall-item {
  border-radius: var(--card-radius-lg);
  overflow: hidden;
  background: var(--cream-card);
  border: 1px solid rgba(255,180,154,0.15);
  transition: all 0.4s cubic-bezier(0.25, 0.8, 0.35, 1);
  position: relative;
}

.content-wall-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.content-wall-item img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.content-wall-item:hover img {
  transform: scale(1.04);
}

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

.content-wall-body .tag {
  display: inline-block;
  background: var(--peach-grad-soft);
  color: var(--peach-primary);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 50px;
  margin-bottom: 10px;
  letter-spacing: 0.5px;
}

.content-wall-body h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.5;
}

.content-wall-body p {
  font-size: 0.85rem;
  opacity: 0.6;
  line-height: 1.7;
}

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

.faq-item {
  border: 1px solid rgba(255,180,154,0.2);
  border-radius: var(--card-radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  cursor: pointer;
  background: var(--cream-card);
  transition: all 0.3s ease;
}

.faq-item:hover {
  border-color: var(--peach-secondary);
  box-shadow: 0 4px 20px rgba(255,126,95,0.08);
}

.faq-item.open {
  border-color: var(--peach-primary);
  box-shadow: 0 8px 30px rgba(255,126,95,0.12);
}

.faq-item .faq-question {
  padding: 20px 24px;
  font-weight: 600;
  font-size: 0.98rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-deep);
  position: relative;
}

.faq-item .faq-question::after {
  content: '+';
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--peach-primary);
  transition: transform 0.3s ease;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--peach-grad-soft);
}

.faq-item.open .faq-question::after {
  transform: rotate(45deg);
  background: var(--peach-grad);
  color: #fff;
}

.faq-item .faq-answer {
  padding: 0 24px 20px;
  display: none;
  opacity: 0.7;
  font-size: 0.9rem;
  line-height: 1.9;
  border-top: 1px dashed rgba(255,180,154,0.2);
  margin-top: 0;
  padding-top: 14px;
}

.faq-item.open .faq-answer {
  display: block;
}

/* ========== CTA横幅 ========== */
.cta-banner {
  padding: 64px 48px;
  text-align: center;
  border-radius: var(--card-radius-lg);
  background: var(--peach-grad);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  transition: transform 0.6s ease;
}

.cta-banner::after {
  content: '';
  position: absolute;
  bottom: -40px;
  left: -40px;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
}

.cta-banner:hover::before {
  transform: scale(1.2);
}

.cta-banner h2 {
  color: #fff;
  font-size: 2.2rem;
  font-weight: 900;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
  letter-spacing: -0.5px;
}

.cta-banner p {
  color: rgba(255,255,255,0.85);
  font-size: 1rem;
  margin-bottom: 28px;
  position: relative;
  z-index: 1;
}

.cta-banner .btn-primary {
  background: #fff;
  color: var(--peach-primary);
  box-shadow: 0 8px 24px rgba(0,0,0,0.1);
  position: relative;
  z-index: 1;
}

.cta-banner .btn-primary:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 12px 32px rgba(0,0,0,0.15);
}

/* ========== 页脚 ========== */
.site-footer {
  padding: 72px 0 28px;
  background: linear-gradient(180deg, var(--cream-bg) 0%, #FFF0E8 100%);
  position: relative;
}

.site-footer::before {
  content: '🍑';
  position: absolute;
  top: 20px;
  right: 40px;
  font-size: 3rem;
  opacity: 0.06;
  transform: rotate(20deg);
}

.site-footer .container {
  position: relative;
  z-index: 1;
}

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

.footer-brand {
  padding-right: 30px;
}

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

.footer-brand p {
  font-size: 0.88rem;
  opacity: 0.6;
  line-height: 1.8;
  margin-top: 12px;
}

.footer-col h4 {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 18px;
  color: var(--text-deep);
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 24px;
  height: 3px;
  border-radius: 3px;
  background: var(--peach-grad);
}

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

.footer-col ul li {
  margin-bottom: 8px;
}

.footer-col ul a {
  text-decoration: none;
  font-size: 0.88rem;
  opacity: 0.6;
  color: var(--text-deep);
  transition: all 0.3s ease;
  display: inline-block;
}

.footer-col ul a:hover {
  opacity: 1;
  color: var(--peach-primary);
  transform: translateX(4px);
}

.footer-bottom {
  border-top: 1px solid rgba(255,126,95,0.15);
  margin-top: 48px;
  padding-top: 24px;
  text-align: center;
  font-size: 0.82rem;
  opacity: 0.55;
  color: var(--text-deep);
}

/* ========== 工具类 ========== */
.text-accent {
  background: var(--peach-grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: var(--peach-primary);
  font-weight: 900;
}

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

.seo-description {
  max-width: 600px;
  margin: 0 auto 48px;
  opacity: 0.7;
  font-size: 1.05rem;
  line-height: 1.9;
}

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

/* ========== 装饰性蜜桃形状 ========== */
.peach-decor {
  position: absolute;
  border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
  background: var(--peach-grad);
  opacity: 0.15;
  filter: blur(40px);
  pointer-events: none;
  z-index: 0;
}

/* ========== 响应式 ========== */
@media (max-width: 768px) {
  .site-header {
    background: rgba(255, 249, 242, 0.95);
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 76px;
    left: 0;
    width: 100%;
    background: rgba(255, 249, 242, 0.98);
    backdrop-filter: blur(20px);
    padding: 20px 24px;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    border-bottom: 1px solid rgba(255,180,154,0.2);
    box-shadow: 0 20px 40px rgba(0,0,0,0.06);
  }

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

  .main-nav a {
    font-size: 1rem;
    padding: 8px 0;
  }

  .nav-cta {
    margin-top: 8px;
  }

  .menu-toggle {
    display: flex;
  }

  .hero {
    min-height: auto;
    padding: 120px 0 60px;
  }

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

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

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

  .hero-buttons .btn {
    width: 100%;
    justify-content: center;
  }

  .hero-image {
    margin-top: 40px;
    transform: none;
  }

  .hero-image:hover {
    transform: translateY(-4px);
  }

  .section {
    padding: 64px 0;
  }

  .section-title {
    font-size: 1.8rem;
  }

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

  .feature-text {
    padding: 0;
  }

  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .stats-bar::before {
    display: none;
  }

  .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;
    padding-right: 0;
  }

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

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

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

  .hero h1 {
    font-size: 2rem;
  }

  .hero-eyebrow {
    font-size: 0.75rem;
  }

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

  .hero-buttons {
    flex-direction: column;
  }

  .hero-buttons .btn {
    width: 100%;
    justify-content: center;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .section-label {
    font-size: 0.72rem;
  }

  .stat-number {
    font-size: 1.8rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .feature-block {
    gap: 24px;
  }

  .cta-banner {
    padding: 40px 20px;
  }

  .cta-banner h2 {
    font-size: 1.4rem;
  }

  .btn {
    padding: 12px 24px;
    font-size: 0.88rem;
  }

  .nav-cta {
    display: none;
  }
}

/* ========== 动画辅助 ========== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.hero-content,
.section-title,
.section-desc,
.feature-block,
.stats-bar,
.cards-grid,
.content-wall,
.cta-banner {
  animation: fadeInUp 0.8s ease-out both;
}

.hero-content { animation-delay: 0.1s; }
.category-card:nth-child(2) { animation-delay: 0.15s; }
.category-card:nth-child(3) { animation-delay: 0.25s; }
.category-card:nth-child(4) { animation-delay: 0.35s; }