/* ================================================================
   光影剧场 · 免费影视
   观影零门槛 · 好剧免费看
   mianfeiyingshi.net.cn
   ================================================================ */

:root {
  --cream: #FAF6EE;
  --cream-deep: #F1EAE0;
  --ink: #38291D;
  --ink-soft: #6F5E4F;
  --coral: #FF6144;
  --coral-dark: #E34B30;
  --coral-soft: #FFE6DF;
  --teal: #0E7C7C;
  --teal-soft: #DEEFEF;
  --gold: #F2B84B;
  --gold-soft: #FDF0DC;
  --white: #FFFFFF;
  --border-line: rgba(56, 41, 29, 0.07);
  --shadow-card: 0 4px 20px rgba(56, 41, 29, 0.05), 0 1px 4px rgba(56, 41, 29, 0.03);
  --shadow-hover: 0 16px 40px rgba(56, 41, 29, 0.08);
  --radius: 20px;
  --radius-sm: 14px;
  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', sans-serif;
  background: var(--cream);
  color: var(--ink);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* 页面柔光氛围 */
body::before {
  content: '';
  position: fixed;
  top: -220px;
  right: -160px;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(255, 97, 68, 0.06) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

body::after {
  content: '';
  position: fixed;
  bottom: -160px;
  left: -120px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(14, 124, 124, 0.05) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

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

::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--cream);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--coral), var(--gold));
  border-radius: 100px;
  border: 2px solid var(--cream);
}

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

/* ================================================================
   核心布局
   ================================================================ */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

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

.section:nth-child(even) {
  background: var(--cream-deep);
}

/* ================================================================
   导航 — 固定顶部
   ================================================================ */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(250, 246, 238, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-line);
  transition: box-shadow 0.3s ease;
}

.site-header:hover {
  box-shadow: 0 4px 24px rgba(56, 41, 29, 0.04);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  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: var(--ink);
  letter-spacing: -0.3px;
  transition: opacity 0.3s ease;
}

.logo:hover {
  opacity: 0.85;
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  background: linear-gradient(135deg, var(--coral), #FF8A65);
  color: #fff;
  box-shadow: 0 6px 16px rgba(255, 97, 68, 0.3);
  position: relative;
  transition: transform 0.3s var(--ease);
}

.logo:hover .logo-icon {
  transform: rotate(-8deg) scale(1.06);
}

.logo-icon::after {
  content: '';
  width: 0;
  height: 0;
  border-left: 9px solid #fff;
  border-top: 5.5px solid transparent;
  border-bottom: 5.5px solid transparent;
  margin-left: 3px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 30px;
  list-style: none;
}

.main-nav a {
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--ink);
  position: relative;
  padding: 4px 0;
  transition: color 0.3s ease;
}

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

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

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

.nav-cta {
  padding: 9px 24px;
  border-radius: 100px;
  color: #fff !important;
  font-weight: 600;
  font-size: 0.88rem !important;
  background: linear-gradient(135deg, var(--coral), var(--coral-dark));
  box-shadow: 0 4px 14px rgba(255, 97, 68, 0.3);
  position: relative;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease !important;
}

.nav-cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: -80%;
  width: 50%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
  transform: skewX(-20deg);
  transition: left 0.5s ease;
  z-index: 1;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 97, 68, 0.4);
}

.nav-cta:hover::before {
  left: 130%;
}

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

.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 1.5px solid rgba(56, 41, 29, 0.12);
  border-radius: 12px;
  background: #fff;
  cursor: pointer;
  font-size: 1rem;
  color: var(--ink);
  transition: all 0.3s ease;
}

.menu-toggle:hover {
  border-color: var(--coral);
  color: var(--coral);
  box-shadow: 0 4px 12px rgba(255, 97, 68, 0.1);
}

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

.hero {
  min-height: 78vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: 68px;
  background: linear-gradient(160deg, var(--cream) 0%, #FDF0E1 55%, var(--coral-soft) 100%);
  overflow: hidden;
}

/* 胶片孔装饰条 */
.hero::before {
  content: '';
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  width: 90%;
  max-width: 1100px;
  height: 10px;
  opacity: 0.3;
  background: repeating-linear-gradient(
    90deg,
    transparent 0px,
    transparent 14px,
    rgba(56, 41, 29, 0.45) 14px,
    rgba(56, 41, 29, 0.45) 22px,
    transparent 22px,
    transparent 36px
  );
  border-radius: 4px;
}

.hero::after {
  content: '';
  position: absolute;
  top: -120px;
  right: -60px;
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(242, 184, 75, 0.18) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero .container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
  align-items: center;
  padding-top: 40px;
  padding-bottom: 60px;
  position: relative;
  z-index: 2;
}

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

.hero-eyebrow {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 7px 18px;
  border-radius: 100px;
  margin-bottom: 20px;
  background: rgba(14, 124, 124, 0.1);
  color: var(--teal);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  position: relative;
}

.hero-eyebrow::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--coral);
  margin-right: 8px;
  vertical-align: 2px;
  animation: blink 2s infinite;
}

.hero h1 {
  font-size: 3.5rem;
  line-height: 1.15;
  margin-bottom: 22px;
  font-weight: 800;
  letter-spacing: -1px;
  color: var(--ink);
}

.hero h1 .text-accent {
  color: var(--coral);
  position: relative;
  display: inline-block;
  z-index: 1;
}

.hero h1 .text-accent::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 0;
  width: 100%;
  height: 10px;
  background: rgba(255, 97, 68, 0.15);
  border-radius: 4px;
  z-index: -1;
}

.hero p {
  font-size: 1.1rem;
  opacity: 0.65;
  max-width: 560px;
  margin-bottom: 34px;
  line-height: 1.85;
}

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

.hero-image {
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  background: linear-gradient(150deg, var(--teal) 0%, #1AA3A3 70%, #2AC2C2 100%);
  box-shadow: 0 24px 64px rgba(14, 124, 124, 0.28);
  animation: float 6s ease-in-out infinite;
  min-height: 340px;
}

/* 播放按钮圆形底 */
.hero-image::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 82px;
  height: 82px;
  background: rgba(255, 255, 255, 0.92);
  border-radius: 50%;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
  z-index: 2;
  backdrop-filter: blur(4px);
  transition: transform 0.3s var(--ease), box-shadow 0.3s ease;
}

/* 播放三角 */
.hero-image::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-left: 15px solid var(--coral);
  border-top: 9px solid transparent;
  border-bottom: 9px solid transparent;
  margin-left: 5px;
  z-index: 3;
  transition: transform 0.3s ease;
}

.hero-image:hover::before {
  transform: translate(-50%, -50%) scale(1.1);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.2);
}

.hero-image:hover::after {
  transform: translate(-50%, -50%) scale(1.1);
}

.hero-image img {
  width: 100%;
  height: 100%;
  min-height: 340px;
  object-fit: cover;
  display: block;
  position: relative;
  z-index: 1;
}

/* ================================================================
   按钮
   ================================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 100px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.35s var(--ease);
  letter-spacing: 0.3px;
  line-height: 1.4;
}

.btn-primary {
  background: linear-gradient(135deg, var(--coral), var(--coral-dark));
  color: #fff;
  box-shadow: 0 8px 24px rgba(255, 97, 68, 0.28);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 36px rgba(255, 97, 68, 0.38);
}

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

.btn-outline:hover {
  background: var(--ink);
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(56, 41, 29, 0.15);
}

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

.section-label {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 14px;
  color: var(--coral);
  position: relative;
  padding-left: 22px;
}

.section-label::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--coral);
  box-shadow: 0 0 0 5px rgba(255, 97, 68, 0.18);
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 16px;
  font-weight: 800;
  letter-spacing: -0.5px;
  line-height: 1.25;
  color: var(--ink);
}

.section-desc {
  max-width: 600px;
  opacity: 0.6;
  font-size: 1.05rem;
  line-height: 1.85;
  margin-bottom: 44px;
}

/* ================================================================
   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);
  padding: 34px 30px;
  background: #fff;
  border: 1px solid var(--border-line);
  transition: all 0.4s var(--ease);
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--coral), var(--gold), var(--teal));
  opacity: 0;
  transition: opacity 0.4s ease;
}

.category-card::after {
  content: '';
  position: absolute;
  right: -24px;
  bottom: -24px;
  width: 90px;
  height: 90px;
  border: 2px dashed rgba(14, 124, 124, 0.12);
  border-radius: 50%;
  transition: transform 0.5s var(--ease);
}

.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(255, 97, 68, 0.12);
}

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

.category-card:hover::after {
  transform: scale(1.1) rotate(15deg);
}

.card-icon {
  width: 54px;
  height: 54px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.4rem;
  background: var(--coral-soft);
  color: var(--coral);
  transition: all 0.4s var(--ease);
}

.category-card:hover .card-icon {
  background: var(--coral);
  color: #fff;
  transform: scale(1.06) rotate(-6deg);
  box-shadow: 0 6px 16px rgba(255, 97, 68, 0.3);
}

.category-card h3 {
  font-size: 1.15rem;
  margin-bottom: 6px;
}

.category-card p {
  font-size: 0.88rem;
  opacity: 0.55;
  line-height: 1.7;
  margin-bottom: 14px;
}

.card-link {
  font-weight: 600;
  font-size: 0.85rem;
  text-decoration: none;
  color: var(--teal);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 4px;
}

.card-link::after {
  content: '→';
  transition: transform 0.3s ease;
}

.card-link:hover::after {
  transform: translateX(5px);
}

/* ================================================================
   特性块
   ================================================================ */

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

.feature-image {
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  background: linear-gradient(135deg, var(--coral), #FF9466);
  box-shadow: 0 20px 50px rgba(255, 97, 68, 0.2);
}

.feature-image::after {
  content: '';
  position: absolute;
  inset: 16px;
  border: 1.5px dashed rgba(255, 255, 255, 0.35);
  border-radius: 14px;
  pointer-events: none;
  z-index: 2;
}

.feature-image img {
  width: 100%;
  height: auto;
  min-height: 300px;
  object-fit: cover;
  display: block;
  transition: transform 0.6s var(--ease);
  opacity: 0.9;
}

.feature-image:hover img {
  transform: scale(1.04);
}

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

.feature-text h3 {
  font-size: 1.6rem;
  margin-bottom: 12px;
  font-weight: 800;
  line-height: 1.35;
}

.feature-text p {
  opacity: 0.6;
  line-height: 1.85;
  margin-bottom: 6px;
}

.feature-list {
  list-style: none;
  margin-top: 24px;
}

.feature-list li {
  padding: 10px 0;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.98rem;
  color: rgba(56, 41, 29, 0.8);
  border-bottom: 1px dashed rgba(56, 41, 29, 0.08);
}

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

.feature-list li::before {
  content: '✓';
  font-weight: 700;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--teal-soft);
  color: var(--teal);
  display: inline-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: var(--radius);
  background: #fff;
  border: 1px solid var(--border-line);
  position: relative;
  transition: all 0.4s var(--ease);
  overflow: hidden;
}

.stat-item::after {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 4px;
  background: linear-gradient(90deg, var(--coral), var(--gold));
  border-radius: 0 0 4px 4px;
  opacity: 0;
  transition: all 0.4s ease;
}

.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.stat-item:hover::after {
  opacity: 1;
  width: 70%;
}

.stat-number {
  font-size: 2.8rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--coral), var(--gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-fill-color: transparent;
  line-height: 1.2;
  letter-spacing: -1px;
}

.stat-label {
  font-size: 0.9rem;
  opacity: 0.6;
  margin-top: 8px;
}

/* ================================================================
   内容墙
   ================================================================ */

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

.content-wall-item {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border-line);
  background: #fff;
  transition: all 0.4s var(--ease);
}

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

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

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

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

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

.content-wall-body p {
  font-size: 0.85rem;
  opacity: 0.55;
  line-height: 1.7;
}

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

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

.faq-item {
  border: 1px solid var(--border-line);
  border-radius: 16px;
  margin-bottom: 14px;
  overflow: hidden;
  cursor: pointer;
  background: #fff;
  transition: all 0.35s ease;
}

.faq-item:hover {
  border-color: rgba(255, 97, 68, 0.2);
  box-shadow: 0 6px 20px rgba(56, 41, 29, 0.04);
}

.faq-item.open {
  border-color: rgba(255, 97, 68, 0.25);
  box-shadow: 0 6px 20px rgba(255, 97, 68, 0.06);
}

.faq-item .faq-question {
  padding: 20px 24px;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--ink);
  font-size: 1rem;
  transition: color 0.3s ease;
}

.faq-item:hover .faq-question {
  color: var(--coral);
}

.faq-item .faq-question::after {
  content: '+';
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--coral);
  transition: transform 0.35s var(--ease);
  line-height: 1;
}

.faq-item.open .faq-question::after {
  transform: rotate(135deg);
}

.faq-item .faq-answer {
  padding: 0 24px 22px;
  display: none;
  opacity: 0.6;
  font-size: 0.95rem;
  line-height: 1.85;
  border-top: 1px dashed var(--border-line);
  padding-top: 14px;
  margin-top: -4px;
}

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

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

.cta-banner {
  padding: 68px 32px;
  text-align: center;
  border-radius: var(--radius);
  color: #fff;
  background: linear-gradient(135deg, var(--coral) 0%, #FF8A65 60%, var(--gold) 140%);
  position: relative;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(255, 97, 68, 0.25);
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -10%;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  border: 2px dashed rgba(255, 255, 255, 0.2);
  animation: slowSpin 30s linear infinite;
}

.cta-banner::after {
  content: '';
  position: absolute;
  bottom: -55%;
  left: -5%;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  border: 2px dashed rgba(255, 255, 255, 0.15);
  animation: slowSpin 24s linear infinite reverse;
}

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

.cta-banner h2 {
  color: #fff;
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 14px;
}

.cta-banner .btn-primary {
  background: #fff;
  color: var(--coral);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.1);
  margin-top: 12px;
}

.cta-banner .btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.15);
}

/* ================================================================
   页脚
   ================================================================ */

.site-footer {
  padding: 64px 0 32px;
  background: #F7F1E8;
  border-top: 1px solid var(--border-line);
  color: var(--ink);
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--coral), var(--gold), transparent);
  border-radius: 0 0 4px 4px;
}

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

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

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

.footer-brand p {
  font-size: 0.9rem;
  opacity: 0.6;
  line-height: 1.9;
  max-width: 300px;
}

.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 26px;
  height: 2.5px;
  background: linear-gradient(90deg, var(--coral), var(--gold));
  border-radius: 2px;
}

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

.footer-col a {
  color: rgba(56, 41, 29, 0.65);
  text-decoration: none;
  font-size: 0.88rem;
  line-height: 2.4;
  transition: all 0.3s ease;
}

.footer-col a:hover {
  color: var(--coral);
  padding-left: 5px;
}

.footer-bottom {
  border-top: 1px solid rgba(56, 41, 29, 0.1);
  margin-top: 48px;
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
  opacity: 0.5;
}

/* ================================================================
   工具类
   ================================================================ */

.text-accent {
  color: var(--coral) !important;
}

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

.seo-description {
  max-width: 600px;
  margin: 0 auto 48px;
  opacity: 0.6;
  line-height: 1.85;
}

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

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

/* ================================================================
   动画
   ================================================================ */

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-12px);
  }
}

@keyframes blink {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.3;
  }
}

@keyframes slowSpin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* ================================================================
   响应式
   ================================================================ */

@media (max-width: 980px) {
  .hero .container {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .hero-content {
    max-width: 100%;
    margin: 0 auto;
  }

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

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

  .hero h1 {
    font-size: 2.6rem;
  }

  .section {
    padding: 72px 0;
  }

  .section-title {
    font-size: 2rem;
  }
}

@media (max-width: 768px) {
  .feature-block {
    grid-template-columns: 1fr;
    gap: 36px;
  }

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

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

  .main-nav {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 68px;
    left: 0;
    width: 100%;
    background: rgba(250, 246, 238, 0.98);
    backdrop-filter: blur(16px);
    padding: 24px;
    gap: 18px;
    border-bottom: 1px solid var(--border-line);
    box-shadow: 0 20px 40px rgba(56, 41, 29, 0.08);
    align-items: center;
  }

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

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

  .hero {
    min-height: auto;
    padding-top: 68px;
  }

  .hero .container {
    padding-top: 32px;
    padding-bottom: 56px;
  }

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

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

  .section-title {
    font-size: 1.7rem;
  }

  .cta-banner {
    padding: 48px 20px;
  }

  .cta-banner h2 {
    font-size: 1.6rem;
  }
}

@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;
    width: 100%;
  }

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

  .hero h1 {
    font-size: 1.75rem;
  }

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

  .section {
    padding: 56px 0;
  }

  .section-title {
    font-size: 1.4rem;
  }

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

  .feature-text h3 {
    font-size: 1.3rem;
  }

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

  .cta-banner .btn-primary {
    width: 100%;
  }

  .footer-bottom {
    font-size: 0.78rem;
  }
}