/* ==========================================================
   屁屁影院 · PP CINEMA — "影票嘉年华" Design System
   Cream / Tomato / Sage / Butter — 复古影票 × 现代主义
   ========================================================== */

:root {
  --paper: #F7F1E5;
  --paper-deep: #EFE6D8;
  --card: #FFFDF8;
  --ink: #2C2A26;
  --tomato: #EF4123;
  --tomato-soft: #FCE4DE;
  --sage: #2F7A5B;
  --sage-soft: #DFEBE3;
  --butter: #F4B93E;
  --butter-soft: #FCF0D9;
}

*, *::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-color: var(--paper);
  background-image: radial-gradient(var(--ink) 1.2px, transparent 1.2px);
  background-size: 26px 26px;
  color: var(--ink);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

h1, h2, h3, h4, h5, h6 {
  line-height: 1.3;
  letter-spacing: -0.02em;
}

a {
  color: inherit;
}

button, input {
  font-family: inherit;
}

::selection {
  background: var(--butter);
  color: var(--ink);
}

::-webkit-scrollbar {
  width: 12px;
}
::-webkit-scrollbar-track {
  background: var(--paper);
}
::-webkit-scrollbar-thumb {
  background: var(--tomato);
  border: 3px solid var(--paper);
  border-radius: 999px;
}

/* ============ 核心布局 ============ */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 90px 0;
  scroll-margin-top: 80px;
}

.section:nth-child(even) {
  background-color: var(--paper-deep);
  background-image: radial-gradient(rgba(44, 42, 38, 0.045) 1px, transparent 1px);
  background-size: 26px 26px;
}

/* ============ 导航 ============ */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(247, 241, 229, 0.9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 3px solid var(--ink);
}

.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: 1.3rem;
  letter-spacing: -0.02em;
  text-decoration: none;
  color: var(--ink);
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: var(--tomato);
  border: 2.5px solid var(--ink);
  box-shadow: 3px 3px 0 var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 0.95rem;
  transform: rotate(-6deg);
  transition: 0.25s;
}

.logo:hover .logo-icon {
  transform: rotate(6deg) scale(1.06);
}

.logo-icon svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
}

.main-nav a {
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--ink);
  padding: 8px 16px;
  border: 2px solid transparent;
  border-radius: 999px;
  transition: 0.2s;
}

.main-nav a:not(.nav-cta):hover {
  background: var(--butter);
  border-color: var(--ink);
  transform: rotate(-1.5deg);
}

.nav-cta {
  background: var(--tomato);
  color: #fff !important;
  border: 2.5px solid var(--ink) !important;
  box-shadow: 3px 3px 0 var(--ink);
  font-weight: 800 !important;
  margin-left: 10px;
}

.nav-cta:hover {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0 var(--ink);
  background: var(--tomato);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 2.5px solid var(--ink);
  border-radius: 12px;
  background: var(--card);
  box-shadow: 3px 3px 0 var(--ink);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2.5px;
  background: var(--ink);
  border-radius: 3px;
  transition: 0.3s;
}

.menu-toggle.active span:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}
.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}
.menu-toggle.active span:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}

/* ============ Hero ============ */

.hero {
  min-height: 85vh;
  display: flex;
  align-items: center;
  padding: 150px 0 90px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 90px;
  left: 50%;
  transform: translateX(-50%);
  width: 82%;
  max-width: 960px;
  height: 24px;
  background-image: radial-gradient(circle, var(--tomato) 4px, transparent 4.5px);
  background-size: 44px 24px;
  background-position: center;
  background-repeat: repeat-x;
  opacity: 0.75;
  animation: marquee 1s ease-in-out infinite alternate;
}

.hero::after {
  content: '★';
  position: absolute;
  right: 44px;
  bottom: 40px;
  font-size: 2.4rem;
  color: var(--butter);
  -webkit-text-stroke: 2px var(--ink);
  text-shadow: 4px 4px 0 var(--ink);
  transform: rotate(12deg);
  animation: starFloat 2.6s ease-in-out infinite;
}

.hero .container {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 64px;
  align-items: center;
  position: relative;
}

.hero-content {
  max-width: 720px;
  position: relative;
  z-index: 2;
  animation: popUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--butter);
  border: 2.5px solid var(--ink);
  box-shadow: 4px 4px 0 var(--ink);
  border-radius: 999px;
  padding: 6px 18px;
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 20px;
  transform: rotate(-2deg);
}

.hero-eyebrow::before {
  content: '▶';
  font-size: 0.62rem;
  transform: translateY(-1px);
}

.hero h1 {
  font-size: clamp(2.8rem, 6vw, 4.4rem);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin-bottom: 22px;
  color: var(--ink);
}

.hero p {
  font-size: 1.15rem;
  line-height: 1.75;
  opacity: 0.72;
  max-width: 560px;
  margin-bottom: 36px;
}

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

.hero-image {
  border: 4px solid var(--ink);
  border-radius: 26px;
  box-shadow: 12px 12px 0 var(--ink);
  overflow: hidden;
  position: relative;
  background: var(--sage-soft);
  min-height: 320px;
  transition: 0.3s;
  animation: floatTicket 5s ease-in-out infinite alternate;
}

.hero-image::before,
.hero-image::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  height: 18px;
  background-color: var(--tomato);
  background-image: linear-gradient(90deg, var(--paper) 0 12px, transparent 12px 32px);
  background-size: 32px 18px;
  z-index: 2;
  pointer-events: none;
}

.hero-image::before {
  top: 0;
}

.hero-image::after {
  bottom: 0;
}

.hero-image img {
  width: 100%;
  height: auto;
  display: block;
  filter: saturate(0.85) contrast(1.04);
  transition: 0.4s;
}

.hero-image:hover img {
  transform: scale(1.025);
}

/* ============ 按钮 ============ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 30px;
  border: 3px solid var(--ink);
  border-radius: 999px;
  background: var(--card);
  box-shadow: 5px 5px 0 var(--ink);
  font-weight: 800;
  font-size: 0.95rem;
  cursor: pointer;
  text-decoration: none;
  color: var(--ink);
  transition: all 0.16s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn:hover {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--ink);
}

.btn:active {
  transform: translate(4px, 4px);
  box-shadow: 0 0 0 var(--ink);
}

.btn-primary {
  background: var(--tomato);
  color: #fff;
}

.btn-outline {
  background: transparent;
  border: 3px solid var(--ink);
  color: var(--ink);
}

/* ============ 标签 & 标题 ============ */

.section-label {
  display: inline-block;
  background: var(--sage);
  color: #fff;
  border: 2.5px solid var(--ink);
  border-radius: 999px;
  box-shadow: 3px 3px 0 var(--ink);
  padding: 5px 18px;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 14px;
  transform: rotate(-1deg);
}

.section-title {
  font-size: clamp(2rem, 3.6vw, 2.7rem);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  display: inline-block;
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 84px;
  height: 8px;
  background: var(--butter);
  border: 2px solid var(--ink);
  border-radius: 4px;
  margin-top: 10px;
  transform: skewX(-18deg);
}

.section-desc {
  max-width: 640px;
  font-size: 1.05rem;
  opacity: 0.7;
  line-height: 1.7;
  margin-bottom: 44px;
}

/* ============ 卡片网格 ============ */

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 30px;
}

.category-card {
  background: var(--card);
  border: 3px solid var(--ink);
  border-radius: 22px;
  box-shadow: 7px 7px 0 var(--ink);
  padding: 30px 28px;
  position: relative;
  transition: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.category-card::before {
  content: '';
  position: absolute;
  top: 18px;
  right: 18px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--tomato);
  border: 2px solid var(--ink);
  transition: 0.2s;
}

.category-card:nth-child(2n) {
  transform: rotate(0.5deg);
}

.category-card:nth-child(3n) {
  transform: rotate(-0.5deg);
}

.category-card:hover {
  transform: rotate(-1.5deg) translate(-3px, -3px);
  box-shadow: 12px 12px 0 var(--tomato);
}

.category-card:hover::before {
  background: var(--butter);
}

.card-icon {
  width: 54px;
  height: 54px;
  border-radius: 16px;
  background: var(--butter);
  border: 2.5px solid var(--ink);
  box-shadow: 3px 3px 0 var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 18px;
  transition: 0.3s;
}

.cards-grid .category-card:nth-child(2) .card-icon {
  background: var(--sage-soft);
}

.cards-grid .category-card:nth-child(3) .card-icon {
  background: var(--tomato-soft);
}

.category-card:hover .card-icon {
  transform: rotate(-8deg) scale(1.08);
}

.category-card h3 {
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.category-card p {
  font-size: 0.92rem;
  opacity: 0.7;
  margin-bottom: 18px;
}

.card-link {
  display: inline-block;
  font-weight: 800;
  font-size: 0.85rem;
  color: var(--tomato);
  text-decoration: none;
  border-bottom: 3px dashed var(--tomato);
  padding-bottom: 2px;
  transition: 0.2s;
}

.card-link::after {
  content: ' →';
}

.card-link:hover {
  background: var(--butter);
  border-bottom-style: solid;
  color: var(--ink);
}

/* ============ 特性块 ============ */

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

.feature-image {
  position: relative;
  border: 3.5px solid var(--ink);
  border-radius: 24px;
  background: var(--tomato);
  padding: 14px;
  box-shadow: 10px 10px 0 var(--ink);
  overflow: hidden;
}

.feature-image::before,
.feature-image::after {
  content: '';
  display: block;
  height: 12px;
  background-image: repeating-linear-gradient(90deg, var(--paper) 0 12px, transparent 12px 28px);
}

.feature-image::before {
  margin-bottom: 10px;
}

.feature-image::after {
  margin-top: 10px;
}

.feature-image img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 14px;
  border: 2px solid var(--ink);
}

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

.feature-text h2,
.feature-text .section-title {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 900;
  margin-bottom: 16px;
}

.feature-text p {
  font-size: 1.02rem;
  opacity: 0.72;
  line-height: 1.75;
  margin-bottom: 24px;
}

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

.feature-list li {
  padding: 10px 0;
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  border-bottom: 2px dashed rgba(44, 42, 38, 0.18);
}

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

.feature-list li::before {
  content: '✓';
  width: 26px;
  height: 26px;
  flex: 0 0 26px;
  background: var(--sage);
  border: 2px solid var(--ink);
  border-radius: 999px;
  color: #fff;
  font-size: 0.85rem;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 2px 2px 0 var(--ink);
}

/* ============ 数据条 ============ */

.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
  text-align: center;
}

.stat-item {
  background: var(--card);
  border: 3px solid var(--ink);
  border-radius: 24px;
  box-shadow: 6px 6px 0 var(--ink);
  padding: 32px 16px;
  position: relative;
  transition: 0.2s;
}

.stat-item::before {
  content: '●';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 1.1rem;
  color: var(--tomato);
  background: var(--paper);
  padding: 0 8px;
}

.stat-item:hover {
  transform: translateY(-4px) rotate(-1deg);
  box-shadow: 10px 10px 0 var(--butter);
}

.stat-number {
  font-size: clamp(2.2rem, 4vw, 2.8rem);
  font-weight: 900;
  color: var(--tomato);
  letter-spacing: -0.03em;
  line-height: 1;
}

.stat-label {
  font-size: 0.92rem;
  font-weight: 600;
  opacity: 0.65;
  margin-top: 8px;
}

/* ============ 内容墙 ============ */

.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 30px;
}

.content-wall-item {
  background: var(--card);
  border: 3px solid var(--ink);
  border-radius: 22px;
  box-shadow: 6px 6px 0 var(--ink);
  overflow: hidden;
  position: relative;
  transition: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.content-wall-item:hover {
  transform: translate(-3px, -3px) rotate(0.8deg);
  box-shadow: 10px 10px 0 var(--sage);
}

.content-wall-item img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-bottom: 3px solid var(--ink);
  display: block;
}

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

.content-wall-body .wall-tag {
  display: inline-block;
  background: var(--butter);
  border: 2px solid var(--ink);
  border-radius: 999px;
  box-shadow: 2px 2px 0 var(--ink);
  font-size: 0.7rem;
  font-weight: 800;
  padding: 2px 12px;
  margin-bottom: 12px;
}

.content-wall-body h4 {
  font-size: 1.15rem;
  font-weight: 800;
  margin-bottom: 6px;
}

.content-wall-body p {
  font-size: 0.9rem;
  opacity: 0.65;
  margin-bottom: 14px;
}

.wall-link {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--sage);
  text-decoration: none;
  border-bottom: 2px dashed var(--sage);
  transition: 0.2s;
}

.wall-link:hover {
  background: var(--butter-soft);
  color: var(--ink);
  border-bottom-style: solid;
}

/* ============ FAQ ============ */

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

.faq-item {
  background: var(--card);
  border: 3px solid var(--ink);
  border-radius: 18px;
  box-shadow: 5px 5px 0 var(--ink);
  margin-bottom: 16px;
  overflow: hidden;
  cursor: pointer;
  transition: 0.2s;
}

.faq-item:hover {
  transform: translate(-2px, -2px);
  box-shadow: 7px 7px 0 var(--butter);
}

.faq-item.open {
  background: var(--butter-soft);
  box-shadow: 7px 7px 0 var(--sage);
}

.faq-item .faq-question {
  padding: 18px 22px;
  font-weight: 800;
  font-size: 1.05rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  user-select: none;
}

.faq-item .faq-question::after {
  content: '＋';
  font-size: 1.3rem;
  font-weight: 900;
  color: var(--tomato);
  flex: 0 0 auto;
  transition: transform 0.3s;
}

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

.faq-item .faq-answer {
  padding: 0 22px 18px;
  display: none;
  opacity: 0.72;
  font-size: 0.95rem;
  line-height: 1.7;
}

.faq-item.open .faq-answer {
  display: block;
  padding: 12px 22px 18px;
  border-top: 2px dashed rgba(44, 42, 38, 0.2);
  animation: fadeIn 0.3s ease;
}

/* ============ CTA 横幅 ============ */

.cta-banner {
  background: var(--tomato);
  border: 3.5px solid var(--ink);
  border-radius: 30px;
  box-shadow: 10px 10px 0 var(--ink);
  padding: 64px 48px;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.16) 3px, transparent 3px);
  background-size: 26px 26px;
  pointer-events: none;
}

.cta-banner::after {
  content: '▶';
  position: absolute;
  top: 18px;
  right: 26px;
  font-size: 2rem;
  color: var(--butter);
  -webkit-text-stroke: 1.5px var(--ink);
  transform: rotate(10deg);
}

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

.cta-banner h2 {
  color: #fff;
  font-size: clamp(1.9rem, 3.6vw, 2.6rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}

.cta-banner p {
  font-size: 1.05rem;
  opacity: 0.92;
  max-width: 480px;
  margin: 0 auto 30px;
}

.cta-banner .btn-primary {
  background: #fff;
  color: var(--tomato);
  border-color: var(--ink);
  box-shadow: 5px 5px 0 var(--ink);
}

.cta-banner .btn-primary:hover {
  box-shadow: 2px 2px 0 var(--ink);
}

/* ============ 页脚 ============ */

.site-footer {
  background: var(--paper);
  border-top: 4px solid var(--ink);
  padding: 64px 0 30px;
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: -9px;
  left: 26px;
  width: 120px;
  height: 16px;
  background: var(--butter);
  border: 2px solid var(--ink);
  border-radius: 3px;
  transform: rotate(-4deg);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 44px;
}

.footer-brand {
  max-width: 320px;
}

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

.footer-brand p {
  font-size: 0.92rem;
  opacity: 0.6;
  line-height: 1.7;
}

.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 3px dashed rgba(44, 42, 38, 0.25);
}

.footer-col a {
  display: block;
  color: var(--ink);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  padding: 5px 0;
  border-radius: 6px;
  transition: 0.2s;
}

.footer-col a:hover {
  color: var(--tomato);
  padding-left: 6px;
  background: var(--butter-soft);
}

.footer-bottom {
  border-top: 3px solid var(--ink);
  margin-top: 48px;
  padding-top: 24px;
  text-align: center;
  font-size: 0.88rem;
  font-weight: 600;
}

/* ============ 工具类 ============ */

.text-accent {
  color: var(--tomato);
  font-weight: 900;
}

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

.seo-description {
  max-width: 620px;
  margin: 0 auto 48px;
  opacity: 0.72;
  line-height: 1.8;
  text-align: center;
}

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

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

/* ============ 动画 ============ */

@keyframes marquee {
  from {
    opacity: 0.45;
  }
  to {
    opacity: 1;
  }
}

@keyframes starFloat {
  0%, 100% {
    transform: rotate(12deg) translateY(0);
  }
  50% {
    transform: rotate(7deg) translateY(-12px);
  }
}

@keyframes floatTicket {
  0% {
    transform: rotate(1deg) translateY(0);
  }
  100% {
    transform: rotate(-1deg) translateY(-10px);
  }
}

@keyframes popUp {
  0% {
    opacity: 0;
    transform: translateY(36px) scale(0.97);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

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

/* ============ 响应式 ============ */

@media (max-width: 768px) {
  .hero {
    padding: 120px 0 64px;
    min-height: auto;
  }

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

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

  .hero::before {
    width: 95%;
    background-size: 36px 20px;
  }

  .hero::after {
    display: none;
  }

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

  .feature-block {
    grid-template-columns: 1fr;
    gap: 44px;
  }

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

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

  .main-nav {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background: var(--paper);
    border-bottom: 3px solid var(--ink);
    padding: 24px;
    gap: 10px;
    box-shadow: 0 14px 28px rgba(44, 42, 38, 0.1);
    z-index: 999;
  }

  .main-nav.open a {
    width: 100%;
    padding: 12px 16px;
  }

  .main-nav.open .nav-cta {
    margin-left: 0;
    text-align: center;
  }

  .section {
    padding: 64px 0;
  }

  .cta-banner {
    padding: 48px 28px;
  }
}

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

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

  .stats-bar {
    grid-template-columns: 1fr;
  }

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

  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }

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

  .hero-image {
    min-height: 180px;
  }

  .hero h1 {
    font-size: 2.1rem;
  }

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

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

/* ============ 无障碍 ============ */

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