/* ================================================================
   kukuhalu.com 首页 · 暖色亲子风
   设计语言：温暖柔和 · 现代简洁 · 微动效
   亮色模式 · 柔绿主色 · 暖米背景 · 纯CSS动画
   ================================================================ */

/* ===== 设计令牌 ===== */
:root {
  --primary: #65a381;
  --primary-light: #8fc4a4;
  --primary-lighter: #d4eadc;
  --primary-dark: #4e8a68;
  --primary-bg: rgba(101,163,129,0.08);

  --bg: #fefaf7;
  --bg-card: #ffffff;
  --bg-elevated: #fff8f2;

  --text-primary: #2d3436;
  --text-secondary: #636e72;
  --text-tertiary: #b2bec3;

  --accent-warm: #f8b739;
  --accent-coral: #ff7675;
  --accent-sky: #74b9ff;

  --shadow-sm: 0 2px 8px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.07);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.10);

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;

  --sans: 'PingFang SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --ease-out: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
  --dur-fast: 200ms;
  --dur-normal: 350ms;
  --dur-slow: 500ms;
}

/* ===== 全局基础 ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.6;
}
a { text-decoration: none; color: inherit; }

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== 顶部导航 ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background var(--dur-normal), box-shadow var(--dur-normal);
}
.navbar.scrolled {
  background: rgba(254,250,247,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
}
.nav-logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -0.02em;
}
.nav-logo span {
  margin-right: 4px;
}
.nav-my-btn {
  padding: 6px 16px;
  border: 1.5px solid var(--primary-lighter);
  border-radius: var(--radius-full);
  font-size: 13px;
  color: var(--primary);
  background: transparent;
  cursor: pointer;
  transition: all var(--dur-fast);
  font-family: var(--sans);
}
.nav-my-btn:hover {
  background: var(--primary-bg);
  border-color: var(--primary-light);
}

/* 导航操作区 */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-knowledge-btn {
  padding: 6px 16px;
  border: 1.5px solid var(--accent-sky);
  border-radius: var(--radius-full);
  font-size: 13px;
  color: var(--accent-sky);
  background: transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--dur-fast);
  font-family: var(--sans);
}
.nav-knowledge-btn:hover {
  background: rgba(116,185,255,0.08);
  border-color: #5aa8e8;
}

/* ===== 信任文案区（首页英雄区） ===== */
.trust-section {
  padding: 100px 24px 40px;
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
  position: relative;
}
.trust-section::before {
  content: '';
  position: absolute;
  inset: -60px -100px;
  z-index: -1;
  background:
    radial-gradient(ellipse 60% 50% at 50% 40%, rgba(101,163,129,0.08) 0%, transparent 60%),
    radial-gradient(ellipse 40% 40% at 80% 30%, rgba(248,183,57,0.05) 0%, transparent 60%);
}
.trust-intro {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
}
.trust-headline {
  font-size: clamp(26px, 5vw, 38px);
  font-weight: 800;
  color: var(--primary);
  line-height: 1.4;
  letter-spacing: -0.02em;
}
.trust-headline em {
  font-style: normal;
  position: relative;
}
.trust-headline em::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 0;
  right: 0;
  height: 8px;
  background: rgba(101,163,129,0.2);
  border-radius: 4px;
  z-index: -1;
}

/* ===== 最新故事轮播 + 新系列宣发 ===== */
.hero-spotlight {
  padding: 8px 0 36px;
  max-width: 1120px;
  margin: 0 auto;
}
.hero-spotlight-inner {
  padding: 0 24px;
}

.series-launch-banner {
  margin-bottom: 20px;
}
.series-launch-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  background: linear-gradient(135deg, rgba(139,115,85,0.12) 0%, rgba(232,200,120,0.18) 100%);
  border: 1.5px solid rgba(139,115,85,0.25);
  border-radius: var(--radius-md);
  transition: transform var(--dur-fast), box-shadow var(--dur-fast);
}
.series-launch-link:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.series-launch-badge {
  flex-shrink: 0;
  padding: 4px 10px;
  background: linear-gradient(135deg, #8b7355, #c4a35a);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  border-radius: var(--radius-full);
  white-space: nowrap;
}
.series-launch-text {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
  text-align: left;
}
.series-launch-text strong {
  font-size: 15px;
  color: var(--text-primary);
}
.series-launch-text span {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.4;
}
.series-launch-arrow {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(139,115,85,0.15);
  color: #8b7355;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.carousel-header {
  margin-bottom: 16px;
  text-align: left;
}
.carousel-title {
  font-size: clamp(20px, 4vw, 24px);
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 4px;
}
.carousel-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
}

.carousel-viewport {
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  margin: 0 -24px;
  padding: 4px 24px 8px;
}
.carousel-viewport::-webkit-scrollbar {
  display: none;
}
.carousel-track {
  display: flex;
  gap: 16px;
}

.carousel-slide {
  flex: 0 0 min(88vw, 520px);
  scroll-snap-align: center;
  scroll-snap-stop: always;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--dur-normal), box-shadow var(--dur-normal);
}
.carousel-slide:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}
.carousel-slide-cover {
  position: relative;
  aspect-ratio: 16 / 10;
  background: #e8e4dc;
  overflow: hidden;
}
.carousel-slide-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--dur-slow);
}
.carousel-slide:hover .carousel-slide-cover img {
  transform: scale(1.03);
}
.carousel-slide-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(0,0,0,0.05) 0%,
    rgba(0,0,0,0.08) 40%,
    rgba(0,0,0,0.72) 100%
  );
  pointer-events: none;
}
.carousel-slide-badges {
  position: absolute;
  top: 12px;
  left: 12px;
  right: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  z-index: 2;
}
.carousel-badge {
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 700;
  border-radius: var(--radius-full);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.carousel-badge-new {
  background: rgba(255,118,117,0.92);
  color: #fff;
}
.carousel-badge-series {
  background: rgba(139,115,85,0.88);
  color: #fff;
}
.carousel-badge-dur {
  background: rgba(255,255,255,0.88);
  color: var(--text-primary);
  margin-left: auto;
}
.carousel-slide-body {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 16px 18px 18px;
  z-index: 2;
  color: #fff;
}
.carousel-slide-emoji {
  font-size: 28px;
  line-height: 1;
  display: block;
  margin-bottom: 6px;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3));
}
.carousel-slide-title {
  font-size: clamp(18px, 4.5vw, 22px);
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 6px;
  text-shadow: 0 2px 8px rgba(0,0,0,0.4);
}
.carousel-slide-desc {
  font-size: 13px;
  line-height: 1.5;
  opacity: 0.92;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-shadow: 0 1px 4px rgba(0,0,0,0.35);
}
.carousel-slide-cta {
  display: inline-flex;
  align-items: center;
  padding: 8px 18px;
  background: rgba(255,255,255,0.95);
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 700;
  border-radius: var(--radius-full);
  box-shadow: 0 2px 12px rgba(0,0,0,0.2);
  transition: background var(--dur-fast), transform var(--dur-fast);
}
.carousel-slide:hover .carousel-slide-cta {
  background: #fff;
  transform: translateX(2px);
}

.carousel-footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 14px;
}
.carousel-dots {
  display: flex;
  gap: 8px;
}
.carousel-dot {
  width: 8px;
  height: 8px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: var(--primary-lighter);
  cursor: pointer;
  transition: transform var(--dur-fast), background var(--dur-fast);
  font-family: var(--sans);
}
.carousel-dot.active {
  background: var(--primary);
  transform: scale(1.25);
}
.carousel-pause {
  width: 32px;
  height: 32px;
  border: 1.5px solid var(--primary-lighter);
  border-radius: 50%;
  background: var(--bg-card);
  color: var(--text-secondary);
  font-size: 12px;
  cursor: pointer;
  font-family: var(--sans);
  flex-shrink: 0;
}
.carousel-pause:hover {
  border-color: var(--primary-light);
  color: var(--primary);
}

/* ===== 了解站点：双栏说明 + FAQ 手风琴 ===== */
.site-info-section {
  padding: 48px 24px 40px;
  background: var(--bg-elevated);
  border-top: 1px solid rgba(0,0,0,0.04);
}
.site-info-inner {
  max-width: 960px;
  margin: 0 auto;
}
.site-info-heading {
  font-size: clamp(20px, 4vw, 26px);
  font-weight: 800;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: 28px;
}
.site-info-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 28px;
  align-items: start;
}
.site-info-subtitle {
  font-size: 16px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 12px;
}
.site-info-lead {
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-secondary);
  margin-bottom: 18px;
}
.site-info-lead a {
  color: var(--primary-dark);
  border-bottom: 1px dotted var(--primary-light);
}
.site-info-features {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 18px;
}
.site-info-features li {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background: var(--bg-card);
  border: 1px solid rgba(0,0,0,0.06);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}
.site-info-feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--primary-bg);
  color: var(--primary-dark);
  font-size: 12px;
  font-weight: 800;
  flex-shrink: 0;
}
.site-info-series {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 12px;
  padding: 12px 14px;
  background: rgba(139,115,85,0.06);
  border-radius: var(--radius-sm);
  border-left: 3px solid #8b7355;
}
.site-info-series-badge {
  display: inline-block;
  margin-right: 6px;
  font-weight: 700;
  color: #6d4c41;
}
.site-info-series a {
  color: var(--primary-dark);
  font-weight: 600;
  white-space: nowrap;
}
.site-info-more {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
}
.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.faq-details {
  background: var(--bg-card);
  border: 1px solid rgba(0,0,0,0.06);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.faq-details summary {
  list-style: none;
  cursor: pointer;
  padding: 16px 18px;
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  user-select: none;
  transition: background var(--dur-fast);
}
.faq-details summary::-webkit-details-marker { display: none; }
.faq-details summary::after {
  content: '+';
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--primary-bg);
  color: var(--primary-dark);
  font-size: 16px;
  font-weight: 700;
  line-height: 1;
  transition: transform var(--dur-fast);
}
.faq-details[open] summary {
  border-bottom: 1px solid rgba(0,0,0,0.05);
}
.faq-details[open] summary::after {
  content: '−';
}
.faq-details summary:hover {
  background: rgba(101,163,129,0.04);
}
.faq-answer {
  padding: 14px 18px 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin: 0;
}
.faq-answer a {
  color: var(--primary-dark);
  word-break: break-all;
}

/* ===== 核心价值标签 ===== */
.values-section {
  padding: 20px 24px 50px;
}
.values-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  max-width: 800px;
  margin: 0 auto;
}
.value-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--primary-bg);
  border: 1px solid var(--primary-lighter);
  border-radius: var(--radius-full);
  font-size: 14px;
  color: var(--primary-dark);
  white-space: nowrap;
  transition: transform var(--dur-fast), background var(--dur-fast);
}
.value-tag:hover {
  transform: translateY(-2px);
  background: rgba(101,163,129,0.12);
}
.value-check {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  flex-shrink: 0;
}

/* ===== 故事卡片区 ===== */
.stories-section {
  padding: 20px 0 80px;
}
.stories-section .section-header {
  text-align: center;
  margin-bottom: 40px;
}
.stories-section .section-tag {
  display: inline-block;
  padding: 4px 14px;
  background: rgba(248,183,57,0.12);
  color: #c48500;
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius-full);
  margin-bottom: 12px;
}
.stories-section .section-title {
  font-size: clamp(22px, 4vw, 30px);
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.stories-section .section-desc {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

/* 分类筛选 */
.category-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  max-width: 720px;
  margin: 0 auto;
}
.category-pill {
  padding: 8px 16px;
  border: 1.5px solid var(--primary-lighter);
  border-radius: var(--radius-full);
  background: var(--bg-card);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--dur-fast);
  font-family: var(--sans);
}
.category-pill:hover {
  border-color: var(--primary-light);
  color: var(--primary-dark);
}
.category-pill.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

/* 分类区块 */
.category-block {
  margin-bottom: 48px;
}
.category-block:last-child {
  margin-bottom: 0;
}
.category-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  max-width: 1120px;
  margin: 0 auto 16px;
  padding: 0 24px;
}
.category-emoji {
  font-size: 20px;
}
.category-count {
  margin-left: auto;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-tertiary);
  background: rgba(0,0,0,0.04);
  padding: 2px 10px;
  border-radius: var(--radius-full);
}

/* 卡片网格 */
.stories-grid-home {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* 单个卡片 */
.story-card-home {
  display: block;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(0,0,0,0.04);
  transition: transform var(--dur-normal) var(--ease-out), box-shadow var(--dur-normal);
  /* 入场动画初始 */
  opacity: 0;
  transform: translateY(24px);
}
.story-card-home.visible {
  opacity: 1;
  transform: translateY(0);
}
.story-card-home:hover {
  transform: translateY(-4px) scale(1.01);
  box-shadow: var(--shadow-lg);
}

/* 卡片封面 */
.card-cover-wrap {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  background: #f0ebe6;
}
.card-cover-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--dur-slow);
}
.story-card-home:hover .card-cover-img {
  transform: scale(1.04);
}
/* 封面加载失败降级：emoji + 渐变 */
.card-cover-fallback {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 56px;
  position: relative;
}
.card-cover-fallback::after {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0.12;
  background: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 20px,
    rgba(255,255,255,0.3) 20px,
    rgba(255,255,255,0.3) 40px
  );
}

/* 卡片内容 */
.card-body-home {
  padding: 16px 20px 20px;
}
.card-tags-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.card-body-home h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
  flex: 1;
  min-width: 0;
}
.tag-pill {
  padding: 3px 10px;
  font-size: 11px;
  font-weight: 600;
  border-radius: var(--radius-full);
  white-space: nowrap;
  flex-shrink: 0;
}
.tag-duration {
  background: rgba(248,183,57,0.12);
  color: #c48500;
}
.tag-interact {
  background: var(--primary-bg);
  color: var(--primary-dark);
}
.card-desc-home {
  font-size: 13.5px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
/* 风格+日期行 */
.card-meta-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.tag-style {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  white-space: nowrap;
}
.tag-style-classic {
  background: rgba(100,100,120,0.08);
  color: #636e72;
}
.tag-style-watercolor {
  background: rgba(76,175,80,0.1);
  color: #2e7d32;
}
.tag-style-clay {
  background: rgba(141,110,99,0.1);
  color: #6d4c41;
}
.tag-style-ghibli {
  background: rgba(255,112,67,0.1);
  color: #e64a19;
}
.tag-style-ghibli-winter {
  background: rgba(139,115,85,0.12);
  color: #6d4c41;
}
.tag-style-engine {
  background: rgba(66,165,245,0.1);
  color: #1565c0;
}
.card-date {
  font-size: 11px;
  color: var(--text-tertiary);
}
.card-footer-home {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.companion-count {
  font-size: 13px;
  color: var(--text-tertiary);
}
.card-arrow {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--primary-bg);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
  transition: background var(--dur-fast), transform var(--dur-fast);
}
.story-card-home:hover .card-arrow {
  background: var(--primary);
  color: white;
  transform: translateX(2px);
}

/* ===== 页脚 ===== */
.site-footer-home {
  padding: 40px 24px;
  text-align: center;
  border-top: 1px solid rgba(0,0,0,0.05);
}
.footer-slogan {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}
.footer-slogan strong {
  color: var(--primary);
  font-weight: 700;
}
.footer-icp {
  font-size: 11px;
  color: var(--text-tertiary);
  margin-top: 16px;
  line-height: 1.8;
}
.footer-icp a {
  color: var(--text-tertiary);
  border-bottom: 1px dotted var(--text-tertiary);
  transition: color var(--dur-fast);
}
.footer-icp a:hover {
  color: var(--primary);
}

/* ===== 意见反馈区 ===== */
.feedback-section {
  padding: 48px 20px 56px;
  background: linear-gradient(180deg, var(--bg) 0%, var(--primary-bg) 100%);
}
.feedback-inner {
  max-width: 560px;
  margin: 0 auto;
  text-align: center;
  padding: 36px 28px;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(101, 163, 129, 0.12);
}
.feedback-icon {
  font-size: 40px;
  margin-bottom: 12px;
}
.feedback-title {
  font-size: clamp(20px, 4.5vw, 26px);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
}
.feedback-desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 22px;
}
.feedback-btn {
  display: inline-block;
  padding: 12px 28px;
  background: var(--primary);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-full);
  transition: background var(--dur-fast), transform var(--dur-fast);
}
.feedback-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}
.value-link {
  color: var(--primary);
  text-decoration: none;
  border-bottom: 1px dotted var(--primary-light);
}
.value-link:hover {
  color: var(--primary-dark);
}

/* ===== Toast ===== */
.toast {
  position: fixed;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  padding: 12px 24px;
  background: var(--text-primary);
  color: white;
  font-size: 14px;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-normal), transform var(--dur-normal);
  z-index: 200;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* 平板横屏 / 小桌面 ≥ 769px */
@media (min-width: 769px) {
  .carousel-slide {
    flex: 0 0 min(72%, 560px);
  }
}

/* 大桌面 ≥ 1024px：三图并排，无需滑动 */
@media (min-width: 1024px) {
  .carousel-viewport {
    overflow: visible;
    margin: 0;
    padding: 0;
  }
  .carousel-track {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
  .carousel-slide {
    flex: none;
    width: 100%;
  }
  .carousel-footer {
    display: none;
  }
}
@media (max-width: 768px) {
  .hero-spotlight-inner {
    padding: 0 16px;
  }
  .carousel-viewport {
    margin: 0 -16px;
    padding: 4px 16px 8px;
  }
  .carousel-slide {
    flex: 0 0 min(92vw, 480px);
  }
  .series-launch-text strong {
    font-size: 14px;
  }
  .stories-grid-home {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    padding: 0 16px;
  }
  .values-grid {
    gap: 10px;
  }
  .trust-section {
    padding: 72px 16px 40px;
  }
}

/* 手机 ≤ 480px */
@media (max-width: 480px) {
  .carousel-slide {
    flex: 0 0 calc(100vw - 32px);
  }
  .carousel-slide-cover {
    aspect-ratio: 4 / 3;
  }
  .carousel-slide-body {
    padding: 14px 14px 16px;
  }
  .series-launch-link {
    padding: 12px 14px;
    gap: 10px;
  }
  #seriesLaunchTagline {
    display: none;
  }
  .stories-grid-home {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 0 12px;
  }
  .values-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }
  .value-tag {
    padding: 8px 14px;
    font-size: 13px;
    justify-content: center;
  }
  .navbar {
    padding: 12px 16px;
  }
  .nav-actions { gap: 6px; }
  .nav-knowledge-btn {
    padding: 5px 12px;
    font-size: 12px;
  }
  .trust-section {
    padding: 64px 16px 32px;
  }
  .trust-intro {
    font-size: 14px;
  }
  .site-info-section {
    padding-left: 16px;
    padding-right: 16px;
  }
  .site-info-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .site-info-features {
    grid-template-columns: 1fr 1fr;
  }
  .card-body-home {
    padding: 14px 16px 18px;
  }
  .card-cover-fallback {
    font-size: 44px;
  }
}