```css
/* ==========================================================================
   风车动漫 · Windmill Anime Design System
   "风车一转，新番登场"
   Visual language: breezy summer windmill, warm cream canvas,
   coral × sky-blue × sunny-yellow palette, playful pinwheel motifs
   ========================================================================== */

:root {
  --primary: #E85D3D;
  --primary-deep: #C94727;
  --primary-soft: #FFE0D5;
  --secondary: #3D9BE9;
  --secondary-soft: #D8ECFB;
  --accent: #FFC93C;
  --accent-soft: #FFEFC2;
  --mint: #2EAF7D;
  --mint-soft: #D6F2E6;
  --bg: #FFF9F2;
  --bg-alt: #FFF1E5;
  --surface: #FFFFFF;
  --text: #2B2825;
  --muted: #5C564F;
  --border-soft: #FFE7D9;
  --shadow-primary: 0 8px 32px rgba(232, 93, 61, 0.12);
  --shadow-secondary: 0 8px 32px rgba(61, 155, 233, 0.12);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
}

*, *::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: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection {
  background: var(--primary);
  color: #FFF9F2;
}

/* 轻噪点颗粒纹理 — Awwwards 电影感 */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg);
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--primary), #F0B69C);
  border-radius: 10px;
  border: 2px solid var(--bg);
}

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

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

.section:nth-child(even) {
  background: var(--bg-alt);
}

/* ==================== 顶部导航 ==================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 249, 242, 0.85);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid transparent;
  box-shadow: 0 4px 24px rgba(232, 93, 61, 0.08);
  transition: box-shadow 0.3s ease;
}

.site-header:hover {
  box-shadow: 0 6px 32px rgba(232, 93, 61, 0.14);
}

.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: 1.25rem;
  text-decoration: none;
  color: var(--text);
  letter-spacing: 0.5px;
  transition: color 0.25s;
}

.logo:hover {
  color: var(--primary);
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  background: conic-gradient(from 0deg,
    var(--primary) 0deg 90deg,
    var(--secondary) 90deg 180deg,
    var(--accent) 180deg 270deg,
    var(--mint) 270deg 360deg);
  box-shadow: 0 2px 10px rgba(232, 93, 61, 0.25);
  animation: windmillSpin 12s linear infinite;
}

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

.main-nav a {
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--muted);
  position: relative;
  padding: 4px 0;
  transition: color 0.25s;
}

.main-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2.5px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent), var(--secondary));
  transition: width 0.35s var(--ease-bounce);
}

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

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

.nav-cta {
  padding: 9px 22px;
  border-radius: 50px;
  color: #fff !important;
  font-weight: 600;
  background: linear-gradient(135deg, var(--primary), #F08C63);
  box-shadow: 0 4px 16px rgba(232, 93, 61, 0.35);
  transition: transform 0.25s var(--ease-bounce), box-shadow 0.25s !important;
}

.nav-cta:hover {
  transform: translateY(-2px) scale(1.04);
  box-shadow: 0 8px 28px rgba(232, 93, 61, 0.45);
  color: #fff !important;
}

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

.menu-toggle {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px 12px;
  border-radius: 10px;
  transition: background 0.2s;
}

.menu-toggle:hover {
  background: rgba(232, 93, 61, 0.08);
}

.menu-toggle::before {
  content: '☰';
  font-size: 1.5rem;
  color: var(--primary);
  line-height: 1;
}

/* ==================== 首页 Hero ==================== */
.hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 120px 0 80px;
  background:
    radial-gradient(ellipse at 82% 18%, rgba(61, 155, 233, 0.10) 0%, transparent 55%),
    radial-gradient(ellipse at 12% 85%, rgba(232, 93, 61, 0.12) 0%, transparent 45%),
    radial-gradient(ellipse at 55% 50%, rgba(255, 201, 60, 0.07) 0%, transparent 55%),
    var(--bg);
}

.hero::before {
  content: '';
  position: absolute;
  right: -80px;
  top: 5%;
  width: 440px;
  height: 440px;
  border-radius: 50%;
  background: conic-gradient(from 0deg,
    rgba(232, 93, 61, 0.16) 0deg 90deg,
    rgba(232, 93, 61, 0.06) 90deg 180deg,
    rgba(232, 93, 61, 0.16) 180deg 270deg,
    rgba(232, 93, 61, 0.06) 270deg 360deg);
  animation: windmillSpin 28s linear infinite;
  pointer-events: none;
  z-index: 0;
}

.hero::after {
  content: '';
  position: absolute;
  left: -50px;
  bottom: 10%;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background: conic-gradient(from 45deg,
    rgba(61, 155, 233, 0.20) 0deg 90deg,
    rgba(61, 155, 233, 0.08) 90deg 180deg,
    rgba(61, 155, 233, 0.20) 180deg 270deg,
    rgba(61, 155, 233, 0.08) 270deg 360deg);
  animation: windmillSpin 16s linear infinite reverse;
  pointer-events: none;
  z-index: 0;
}

.hero .container {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 64px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 720px;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  padding: 6px 18px;
  border-radius: 50px;
  margin-bottom: 20px;
  background: linear-gradient(135deg, var(--primary-soft), var(--accent-soft));
  color: var(--primary-deep);
  letter-spacing: 1px;
  box-shadow: 0 2px 10px rgba(232, 93, 61, 0.10);
  animation: floatBreeze 4s ease-in-out infinite;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 20px;
  color: var(--text);
  letter-spacing: -1.5px;
}

.hero p {
  font-size: 1.15rem;
  opacity: 0.65;
  max-width: 560px;
  margin-bottom: 36px;
  color: var(--muted);
}

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

.hero-image {
  border-radius: 24px;
  overflow: hidden;
  position: relative;
  box-shadow: 0 24px 64px rgba(232, 93, 61, 0.16);
  border: 6px solid #fff;
  transform: rotate(2deg);
  transition: transform 0.45s var(--ease-bounce), box-shadow 0.45s;
}

.hero-image:hover {
  transform: rotate(0deg) scale(1.02);
  box-shadow: 0 28px 80px rgba(232, 93, 61, 0.22);
}

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

.hero-image::after {
  content: '每周新番';
  position: absolute;
  bottom: 16px;
  right: 16px;
  background: var(--accent);
  color: var(--text);
  font-size: 0.78rem;
  font-weight: 800;
  padding: 6px 16px;
  border-radius: 50px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.10);
  animation: floatBreeze 5s ease-in-out infinite;
  z-index: 2;
}

/* ==================== 按钮 ==================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  text-decoration: none;
  letter-spacing: 0.3px;
  transition: transform 0.25s var(--ease-bounce), box-shadow 0.25s, background 0.25s;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #F08C63);
  color: #fff;
  box-shadow: 0 6px 20px rgba(232, 93, 61, 0.35);
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 14px 36px rgba(232, 93, 61, 0.45);
}

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

.btn-outline:hover {
  background: rgba(232, 93, 61, 0.06);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(232, 93, 61, 0.12);
}

/* ==================== 标签/标题 ==================== */
.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 3px;
  margin-bottom: 14px;
  padding: 5px 16px;
  border-radius: 50px;
  background: rgba(232, 93, 61, 0.08);
  color: var(--primary);
  text-transform: uppercase;
}

.section-title {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 900;
  margin-bottom: 16px;
  color: var(--text);
  letter-spacing: -0.5px;
  line-height: 1.2;
}

.section-title::before {
  content: '';
  display: inline-block;
  width: 26px;
  height: 26px;
  margin-right: 14px;
  border-radius: 50%;
  background: conic-gradient(from 0deg,
    var(--primary) 0deg 90deg,
    var(--secondary) 90deg 180deg,
    var(--accent) 180deg 270deg,
    var(--mint) 270deg 360deg);
  vertical-align: middle;
  animation: windmillSpin 20s linear infinite;
  box-shadow: 0 0 0 4px rgba(232, 93, 61, 0.06);
}

.section-desc {
  max-width: 620px;
  opacity: 0.7;
  margin-bottom: 48px;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.8;
}

.text-center .section-desc,
.text-center.section-desc {
  margin-left: auto;
  margin-right: auto;
}

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

.category-card {
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  background: var(--surface);
  border: 2px solid #FFF0E2;
  position: relative;
  overflow: hidden;
  transition: transform 0.35s var(--ease-bounce), box-shadow 0.35s, border-color 0.35s;
}

.category-card::before {
  content: '';
  position: absolute;
  right: -30px;
  top: -30px;
  width: 84px;
  height: 84px;
  border-radius: 50%;
  background: conic-gradient(from 0deg,
    rgba(232, 93, 61, 0.14) 0deg 90deg,
    rgba(61, 155, 233, 0.14) 90deg 180deg,
    rgba(255, 201, 60, 0.14) 180deg 270deg,
    rgba(46, 175, 125, 0.14) 270deg 360deg);
  transition: transform 0.6s var(--ease-bounce);
  pointer-events: none;
}

.category-card:hover {
  transform: translateY(-6px) rotate(0.4deg);
  box-shadow: var(--shadow-primary);
  border-color: #FFD9C8;
}

.category-card:hover::before {
  transform: scale(2.4) rotate(20deg);
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.6rem;
  background: linear-gradient(135deg, var(--primary-soft), var(--accent-soft));
  box-shadow: 0 4px 12px rgba(232, 93, 61, 0.12);
  transition: transform 0.3s var(--ease-bounce);
}

.category-card:hover .card-icon {
  transform: scale(1.08) rotate(-5deg);
}

.category-card:nth-child(2) .card-icon {
  background: linear-gradient(135deg, var(--secondary-soft), #E8F4FE);
}

.category-card:nth-child(3) .card-icon {
  background: linear-gradient(135deg, var(--accent-soft), #FFF8E5);
}

.category-card:nth-child(4) .card-icon {
  background: linear-gradient(135deg, var(--mint-soft), #E4F7EF);
}

.card-link {
  font-weight: 700;
  font-size: 0.9rem;
  text-decoration: none;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.25s var(--ease-bounce), color 0.2s;
}

.card-link:hover {
  gap: 12px;
  color: var(--primary-deep);
}

.card-link::after {
  content: '→';
  font-size: 1.1rem;
}

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

.feature-block:nth-of-type(even) .feature-image {
  order: 2;
}

.feature-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-secondary);
  border: 5px solid #fff;
  position: relative;
}

.feature-image::after {
  content: '';
  position: absolute;
  left: -18px;
  bottom: -18px;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: conic-gradient(from 0deg,
    rgba(255, 201, 60, 0.55) 0deg 90deg,
    rgba(61, 155, 233, 0.55) 90deg 180deg,
    rgba(255, 201, 60, 0.55) 180deg 270deg,
    rgba(61, 155, 233, 0.55) 270deg 360deg);
  animation: windmillSpin 18s linear infinite;
  pointer-events: none;
}

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

.feature-text {
  /* 内容区域 */
}

.feature-list {
  list-style: none;
  font-size: 1rem;
}

.feature-list li {
  padding: 8px 0;
  display: flex;
  align-items: center;
  gap: 12px;
  color: #4A463F;
  font-weight: 500;
}

.feature-list li::before {
  content: '✓';
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 0.75rem;
  flex-shrink: 0;
}

/* ==================== 数据条 ==================== */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  text-align: center;
}

.stat-item {
  padding: 36px 20px 28px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 2px solid #FFF0E2;
  position: relative;
  transition: transform 0.3s var(--ease-bounce), box-shadow 0.3s;
}

.stat-item::before {
  content: '';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: conic-gradient(from 0deg,
    var(--primary) 0deg 90deg,
    var(--secondary) 90deg 180deg,
    var(--accent) 180deg 270deg,
    var(--mint) 270deg 360deg);
  border: 4px solid var(--bg);
  animation: windmillSpin 16s linear infinite;
}

.stat-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-primary);
}

.stat-number {
  font-size: 2.6rem;
  font-weight: 900;
  color: var(--text);
  line-height: 1.2;
  letter-spacing: -1px;
}

.stat-label {
  font-size: 0.9rem;
  opacity: 0.6;
  margin-top: 8px;
  color: var(--muted);
  font-weight: 500;
}

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

.content-wall-item {
  border-radius: 20px;
  overflow: hidden;
  background: var(--surface);
  border: 2px solid #FFF0E2;
  position: relative;
  transition: transform 0.3s var(--ease-bounce), box-shadow 0.3s, border-color 0.3s;
}

.content-wall-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-primary);
  border-color: #FFD9C8;
}

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

.content-wall-item:hover img {
  transform: scale(1.06);
}

.content-wall-body {
  padding: 22px;
  border-top: 3px solid transparent;
  transition: border-color 0.3s;
}

.content-wall-item:hover .content-wall-body {
  border-top-color: var(--primary);
}

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

.faq-item {
  border: 2px solid var(--border-soft);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  cursor: pointer;
  background: var(--surface);
  transition: border-color 0.3s, box-shadow 0.3s;
}

.faq-item:hover {
  border-color: #F0B69C;
  box-shadow: 0 4px 20px rgba(232, 93, 61, 0.08);
}

.faq-item .faq-question {
  padding: 18px 24px;
  font-weight: 700;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text);
  font-size: 1rem;
  position: relative;
}

.faq-item .faq-question::before {
  content: '';
  display: inline-block;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: conic-gradient(from 0deg,
    var(--primary) 0deg 90deg,
    var(--secondary) 90deg 180deg,
    var(--accent) 180deg 270deg,
    var(--mint) 270deg 360deg);
  margin-right: 14px;
  flex-shrink: 0;
  animation: windmillSpin 14s linear infinite;
}

.faq-item .faq-question::after {
  content: '+';
  font-size: 1.4rem;
  color: var(--primary);
  font-weight: 700;
  transition: transform 0.35s var(--ease-bounce);
}

.faq-item .faq-answer {
  padding: 0 24px 20px 58px;
  display: none;
  opacity: 0.7;
  color: var(--muted);
  line-height: 1.8;
}

.faq-item.open {
  border-color: var(--primary);
}

.faq-item.open .faq-answer {
  display: block;
  animation: fadeInDown 0.35s ease;
}

.faq-item.open .faq-question::after {
  transform: rotate(45deg);
}

/* ==================== CTA横幅 ==================== */
.cta-banner {
  padding: 72px 24px;
  text-align: center;
  border-radius: 32px;
  background: linear-gradient(135deg, var(--primary) 0%, #F08C63 50%, var(--secondary) 100%);
  position: relative;
  overflow: hidden;
  color: #fff;
  box-shadow: 0 24px 64px rgba(232, 93, 61, 0.28);
}

.cta-banner::before {
  content: '';
  position: absolute;
  left: 6%;
  top: -60px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: conic-gradient(from 0deg,
    rgba(255, 255, 255, 0.16) 0deg 90deg,
    rgba(255, 255, 255, 0.05) 90deg 180deg,
    rgba(255, 255, 255, 0.16) 180deg 270deg,
    rgba(255, 255, 255, 0.05) 270deg 360deg);
  animation: windmillSpin 20s linear infinite;
  pointer-events: none;
}

.cta-banner::after {
  content: '';
  position: absolute;
  right: 5%;
  bottom: -70px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: conic-gradient(from 45deg,
    rgba(255, 255, 255, 0.20) 0deg 90deg,
    rgba(255, 255, 255, 0.07) 90deg 180deg,
    rgba(255, 255, 255, 0.20) 180deg 270deg,
    rgba(255, 255, 255, 0.07) 270deg 360deg);
  animation: windmillSpin 16s linear infinite reverse;
  pointer-events: none;
}

.cta-banner .container {
  position: relative;
  z-index: 1;
}

.cta-banner h2 {
  color: #fff !important;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 900;
  margin-bottom: 16px;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.10);
}

.cta-banner .btn-primary {
  background: #fff;
  color: var(--primary);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.14);
}

.cta-banner .btn-primary:hover {
  transform: translateY(-3px) scale(1.04);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.20);
}

/* ==================== 页脚 ==================== */
.site-footer {
  padding: 80px 0 32px;
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-alt) 100%);
  border-top: 2px solid var(--border-soft);
}

.site-footer .container {
  /* 继承全局容器样式 */
}

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

.footer-brand p {
  color: var(--muted);
  font-size: 0.9rem;
  margin-top: 14px;
  max-width: 280px;
  line-height: 1.8;
  opacity: 0.75;
}

.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 2px;
  color: var(--text);
  margin-bottom: 18px;
  text-transform: uppercase;
}

.footer-col a {
  display: block;
  text-decoration: none;
  color: var(--muted);
  font-size: 0.9rem;
  padding: 4px 0;
  transition: color 0.2s, padding-left 0.25s var(--ease-bounce);
}

.footer-col a:hover {
  color: var(--primary);
  padding-left: 8px;
}

.footer-bottom {
  border-top: 1px solid rgba(232, 93, 61, 0.14);
  margin-top: 48px;
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
  color: #8B8176;
  opacity: 0.85;
}

/* ==================== 工具类 ==================== */
.text-accent {
  color: var(--primary);
}

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

.seo-description {
  max-width: 600px;
  margin: 0 auto 56px;
  opacity: 0.7;
  color: var(--muted);
  line-height: 1.9;
  text-align: center;
}

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

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

/* ==================== 动效 ==================== */
@keyframes windmillSpin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes floatBreeze {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ==================== 响应式 ==================== */
@media (max-width: 768px) {
  .feature-block {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .feature-block:nth-of-type(even) .feature-image {
    order: 0;
  }

  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

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

  .main-nav {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .main-nav.open {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background: var(--bg);
    padding: 24px;
    gap: 18px;
    border-bottom: 2px solid var(--border-soft);
    box-shadow: 0 16px 40px rgba(232, 93, 61, 0.10);
    z-index: 999;
  }

  .main-nav.open a {
    font-size: 1rem;
    font-weight: 600;
    width: 100%;
  }

  .main-nav.open .nav-cta {
    text-align: center;
    width: 100%;
  }

  .hero {
    min-height: auto;
    padding: 110px 0 60px;
  }

  .hero .container {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .hero h1 {
    font-size: clamp(1.8rem, 6vw, 2.4rem);
  }

  .hero-image {
    transform: none;
  }

  .section {
    padding: 72px 0;
  }

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

  .cta-banner {
    padding: 52px 20px;
    border-radius: 24px;
  }

  .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;
    gap: 32px;
  }

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

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

  .hero h1 {
    font-size: 1.8rem;
    letter-spacing: -0.5px;
  }

  .section {
    padding: 56px 0;
  }

  .section-desc,
  .seo-description {
    margin-bottom: 36px;
  }

  .footer-bottom {
    margin-top: 32px;
    font-size: 0.75rem;
  }

  .stat-item {
    padding: 30px 16px 22px;
  }

  .stat-number {
    font-size: 2rem;
  }

  .category-card {
    padding: 26px 22px;
  }
}