/* ==========================================================
   多杏tv · 甜杏流彩设计系统
   暖色渐变流体 × 彩色玻璃 × 甜系圆角
   ========================================================== */

:root {
  --c-primary: #FF9A56;
  --c-primary-soft: #FFE4C7;
  --c-secondary: #FF6B8A;
  --c-secondary-soft: #FFD9E0;
  --c-accent: #FFD93D;
  --c-accent-soft: #FFF3C4;
  --c-bg: #FFF9F2;
  --c-bg-alt: #FFF3E8;
  --c-text: #4A2B2A;
  --c-muted: #8C6E63;
  --shadow-soft: 0 8px 32px rgba(255, 154, 86, 0.10);
}

/* 基础重置 */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', system-ui, sans-serif;
  overflow-x: hidden;
  background-color: var(--c-bg);
  background-image:
    radial-gradient(rgba(255, 154, 86, 0.06) 1px, transparent 1px),
    radial-gradient(circle at 20% 30%, rgba(255, 154, 86, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(255, 107, 138, 0.08) 0%, transparent 50%);
  background-size: 26px 26px, 60% 60%, 60% 60%;
  color: var(--c-text);
  line-height: 1.8;
  letter-spacing: 0.01em;
}

::selection {
  background: rgba(255, 107, 138, 0.2);
}

::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--c-bg-alt);
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--c-primary), var(--c-secondary));
  border-radius: 20px;
}

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

.section {
  padding: 80px 0;
}

.section:nth-child(even) {
  background: rgba(255, 243, 232, 0.65);
}

/* 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(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border-bottom: 1px solid rgba(255, 154, 86, 0.12);
  box-shadow: 0 2px 20px rgba(255, 154, 86, 0.05);
}

.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: 800;
  font-size: 1.25rem;
  text-decoration: none;
  color: var(--c-text);
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: #fff;
  background: radial-gradient(circle at 30% 30%, #FFE4C7, #FF9A56 45%, #FF6B8A 100%);
  box-shadow: 0 4px 16px rgba(255, 107, 138, 0.3), inset 0 2px 4px rgba(255, 255, 255, 0.4);
  position: relative;
  overflow: hidden;
}

.logo-icon::after {
  content: '';
  position: absolute;
  top: 6px;
  left: 8px;
  width: 10px;
  height: 10px;
  background: rgba(255, 255, 255, 0.35);
  border-radius: 50%;
}

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

.main-nav a {
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--c-text);
  transition: 0.2s;
  position: relative;
}

.main-nav a:not(.nav-cta)::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 2px;
  background: var(--c-primary);
  border-radius: 4px;
  transition: width 0.25s;
}

.main-nav a:not(.nav-cta):hover::after {
  width: 100%;
}

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

.nav-cta {
  padding: 8px 20px;
  border-radius: 40px;
  color: #fff !important;
  font-weight: 600;
  background: linear-gradient(135deg, var(--c-primary), var(--c-secondary));
  box-shadow: 0 4px 12px rgba(255, 107, 138, 0.25);
}

.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: rgba(255, 154, 86, 0.12);
  border: none;
  cursor: pointer;
  position: relative;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--c-text);
  border-radius: 2px;
  position: relative;
}

.menu-toggle span::before,
.menu-toggle span::after {
  content: '';
  position: absolute;
  left: 0;
  width: 22px;
  height: 2px;
  background: var(--c-text);
  border-radius: 2px;
}

.menu-toggle span::before {
  top: -7px;
}

.menu-toggle span::after {
  top: 7px;
}

/* Hero */
.hero {
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  right: -5%;
  top: -5%;
  width: min(40vw, 480px);
  height: min(40vw, 480px);
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #FFE4C7 0%, #FFB37C 45%, #FF9A56 70%, #FF6B8A 100%);
  filter: opacity(0.35);
  z-index: 0;
  animation: blob-float 12s ease-in-out infinite;
}

.hero::after {
  content: '';
  position: absolute;
  left: 4%;
  bottom: 14%;
  width: 16px;
  height: 16px;
  background: var(--c-accent);
  border-radius: 50%;
  box-shadow: 0 0 0 8px rgba(255, 217, 61, 0.18);
  animation: bounce-soft 6s ease-in-out infinite;
  z-index: 0;
}

@keyframes blob-float {
  0%, 100% {
    transform: translate(0, 0) rotate(0deg) scale(1);
  }
  33% {
    transform: translate(-8px, 12px) rotate(3deg) scale(1.04);
  }
  66% {
    transform: translate(8px, -6px) rotate(-2deg) scale(1.02);
  }
}

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

.hero-content {
  max-width: 640px;
  position: relative;
  z-index: 2;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  padding: 6px 18px;
  border-radius: 40px;
  background: linear-gradient(135deg, var(--c-accent-soft), var(--c-primary-soft));
  color: var(--c-primary);
  margin-bottom: 18px;
  letter-spacing: 0.02em;
}

.hero h1 {
  font-size: clamp(2.6rem, 5vw, 4.2rem);
  line-height: 1.15;
  margin-bottom: 20px;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--c-text);
  position: relative;
}

.hero h1::after {
  content: '';
  display: block;
  width: 96px;
  height: 14px;
  margin-top: 14px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-secondary), var(--c-accent));
  border-radius: 20px;
  box-shadow: 0 4px 14px rgba(255, 107, 138, 0.25);
}

.hero p {
  font-size: 1.15rem;
  opacity: 0.68;
  max-width: 540px;
  margin-bottom: 32px;
  color: var(--c-muted);
}

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

.hero-image {
  flex: 0 1 480px;
  border-radius: 24px;
  position: relative;
  z-index: 2;
  box-shadow: 0 24px 80px rgba(255, 154, 86, 0.25);
  transform: rotate(2deg);
  overflow: hidden;
}

.hero-image img {
  width: 100%;
  height: auto;
  border-radius: 24px;
  display: block;
  transition: transform 0.5s;
}

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

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: 40px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.3s ease;
  font-size: 0.95rem;
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--c-primary), var(--c-secondary));
  box-shadow: 0 8px 24px rgba(255, 107, 138, 0.28);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(255, 107, 138, 0.36);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.6);
  border: 1.5px solid var(--c-primary);
  color: var(--c-primary);
}

.btn-outline:hover {
  background: rgba(255, 154, 86, 0.08);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(255, 154, 86, 0.15);
}

/* 标签 / 标题 */
.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  padding: 6px 18px;
  border-radius: 40px;
  background: rgba(255, 154, 86, 0.12);
  color: var(--c-primary);
  margin-bottom: 14px;
}

.section-title {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  margin-bottom: 14px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--c-text);
}

.section-desc {
  max-width: 600px;
  opacity: 0.68;
  margin-bottom: 40px;
  color: var(--c-muted);
  font-size: 1.05rem;
}

/* 卡片网格 */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.category-card {
  border-radius: 20px;
  padding: 32px 28px;
  background: rgba(255, 255, 255, 0.65);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow-soft);
  transition: all 0.35s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.category-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(255, 154, 86, 0.16);
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.5rem;
  color: #fff;
  background: linear-gradient(135deg, var(--c-primary-soft), var(--c-primary));
  box-shadow: 0 6px 16px rgba(255, 154, 86, 0.25);
}

.category-card:nth-child(3n+2) .card-icon {
  background: linear-gradient(135deg, var(--c-secondary-soft), var(--c-secondary));
  box-shadow: 0 6px 16px rgba(255, 107, 138, 0.25);
}

.category-card:nth-child(3n) .card-icon {
  background: linear-gradient(135deg, var(--c-accent-soft), var(--c-accent));
  box-shadow: 0 6px 16px rgba(255, 217, 61, 0.3);
}

.card-link {
  font-weight: 700;
  font-size: 0.9rem;
  text-decoration: none;
  color: var(--c-primary);
  transition: color 0.2s;
}

.card-link:hover {
  color: var(--c-secondary);
}

/* 特性块 */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  background: rgba(255, 255, 255, 0.5);
  border-radius: 28px;
  padding: 40px;
  border: 1px solid rgba(255, 255, 255, 0.8);
  box-shadow: var(--shadow-soft);
}

.feature-image {
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 16px 40px rgba(255, 154, 86, 0.18);
}

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

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

.feature-text h2,
.feature-text h3 {
  font-size: 1.8rem;
  margin-bottom: 16px;
  color: var(--c-text);
  font-weight: 800;
}

.feature-text p {
  color: var(--c-muted);
  margin-bottom: 18px;
}

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

.feature-list li {
  padding: 10px 0;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--c-text);
  font-weight: 500;
}

.feature-list li::before {
  content: '✓';
  font-weight: 900;
  color: var(--c-secondary);
  background: rgba(255, 107, 138, 0.1);
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  flex-shrink: 0;
}

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

.stat-item {
  padding: 36px 24px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow-soft);
  transition: transform 0.3s, box-shadow 0.3s;
}

.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(255, 154, 86, 0.14);
}

.stat-number {
  font-size: 2.6rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--c-primary), var(--c-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.9rem;
  opacity: 0.6;
  margin-top: 6px;
  color: var(--c-muted);
}

/* 内容墙 */
.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.content-wall-item {
  border-radius: 20px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow-soft);
  transition: all 0.3s ease;
}

.content-wall-item:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(255, 154, 86, 0.15);
}

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

.content-wall-item:hover img {
  transform: scale(1.05);
}

.content-wall-body {
  padding: 20px 22px;
}

.content-wall-body h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
  color: var(--c-text);
  font-weight: 700;
}

.content-wall-body p {
  opacity: 0.7;
  font-size: 0.9rem;
  color: var(--c-muted);
  line-height: 1.6;
}

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

.faq-item {
  border: 1px solid rgba(255, 154, 86, 0.15);
  border-radius: 16px;
  margin-bottom: 12px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: border-color 0.25s, box-shadow 0.25s;
}

.faq-item:hover {
  border-color: var(--c-primary);
  box-shadow: 0 4px 20px rgba(255, 154, 86, 0.08);
}

.faq-item .faq-question {
  padding: 18px 22px;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--c-text);
  cursor: pointer;
  font-size: 1rem;
}

.faq-question::after {
  content: '+';
  font-size: 1.2rem;
  color: var(--c-primary);
  background: rgba(255, 154, 86, 0.1);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.25s;
}

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

.faq-item .faq-answer {
  padding: 0 22px 18px;
  display: none;
  opacity: 0.7;
  color: var(--c-muted);
  line-height: 1.75;
}

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

/* CTA 横幅 */
.cta-banner {
  padding: 64px 32px;
  text-align: center;
  border-radius: 28px;
  background: linear-gradient(135deg, #FF9A56 0%, #FF6B8A 100%);
  box-shadow: 0 20px 60px rgba(255, 107, 138, 0.3);
  position: relative;
  overflow: hidden;
  color: #fff;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -10%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(255, 217, 61, 0.4), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.cta-banner::after {
  content: '';
  position: absolute;
  bottom: -60%;
  left: -10%;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.15), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

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

.cta-banner p {
  color: rgba(255, 255, 255, 0.85);
  max-width: 520px;
  margin: 0 auto 28px;
  font-size: 1.05rem;
  position: relative;
  z-index: 1;
}

.cta-banner .btn-primary {
  background: #fff;
  color: var(--c-primary);
  box-shadow: 0 8px 24px rgba(255, 255, 255, 0.25);
  position: relative;
  z-index: 1;
}

.cta-banner .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(255, 255, 255, 0.3);
}

/* 页脚 */
.site-footer {
  padding: 64px 0 28px;
  background: linear-gradient(180deg, rgba(255, 243, 232, 0.4), rgba(255, 228, 199, 0.5));
  border-top: 1px solid rgba(255, 154, 86, 0.1);
}

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

.footer-brand p {
  color: var(--c-muted);
  font-size: 0.9rem;
  margin-top: 12px;
  max-width: 260px;
}

.footer-col h4 {
  font-size: 0.95rem;
  margin-bottom: 14px;
  color: var(--c-text);
  font-weight: 700;
}

.footer-col a {
  color: var(--c-muted);
  text-decoration: none;
  display: block;
  padding: 5px 0;
  font-size: 0.9rem;
  transition: color 0.2s, padding-left 0.2s;
}

.footer-col a:hover {
  color: var(--c-primary);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(74, 43, 42, 0.08);
  margin-top: 40px;
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
  color: var(--c-muted);
}

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

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

.seo-description {
  max-width: 600px;
  margin: 0 auto 48px;
  opacity: 0.7;
  color: var(--c-muted);
}

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

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

/* ==========================================================
   响应式
   ========================================================== */
@media (max-width: 1024px) {
  .hero {
    column-gap: 32px;
  }

  .hero-image {
    flex-basis: 360px;
  }

  .feature-block {
    gap: 36px;
    padding: 28px;
  }

  .footer-grid {
    gap: 28px;
  }
}

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

  .main-nav {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    width: 100%;
    background: var(--c-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 24px;
    border-bottom: 1px solid rgba(255, 154, 86, 0.1);
    box-shadow: 0 20px 40px rgba(255, 154, 86, 0.12);
  }

  .main-nav.open a {
    padding: 10px 0;
    width: 100%;
    border-bottom: 1px solid rgba(255, 154, 86, 0.06);
  }

  .main-nav.open .nav-cta {
    width: 100%;
    text-align: center;
    margin-top: 8px;
    border-bottom: none;
  }

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

  .hero::before {
    right: -20%;
    top: -10%;
    width: 360px;
    height: 360px;
  }

  .hero-image {
    width: 100%;
    flex: 0 0 auto;
    transform: rotate(0deg);
  }

  .feature-block {
    grid-template-columns: 1fr;
    padding: 24px;
  }

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

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

@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%;
  }

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

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

  .section {
    padding: 56px 0;
  }

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

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