/* ========================
   2026六一儿童节专题样式
   ======================== */

/* CSS变量 */
:root {
  --color-bg-blue: #d1e7ff;
  --color-bg-cream: #fbf8ef;
  --color-white: #ffffff;
  --color-orange: #ff8d28;
  --color-primary: #0d62bd;
  --color-teal: #62bdb4;
  --color-yellow: #faa810;
  --color-text: #000000;
  --color-text-dark: #333333;
  --color-text-gray: #999999;
  --color-border: #dddddd;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --font-family: "Source Han Sans CN", "PingFang SC", "Microsoft YaHei", sans-serif;
  --container-max: min(92vw, 1531px);
  --section-gap: clamp(40px, 5vw, 80px);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background: var(--color-bg-blue);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

a {
  text-decoration: none;
  color: inherit;
}

/* 容器 */
.container {
  width: var(--container-max);
  margin: 0 auto;
  padding: 0 clamp(16px, 2vw, 24px);
}

/* 节通用 */
.section {
  padding: 0;
}

.section-title {
  font-size: clamp(20px, 3vw, 36px);
  font-weight: 400;
  text-align: center;
  margin-bottom: clamp(24px, 3vw, 40px);
}

.section-title-center {
  font-size: clamp(20px, 3vw, 36px);
  font-weight: 400;
  text-align: center;
  margin-bottom: clamp(24px, 3vw, 40px);
}

.resources-card .section-title-center,
.knowledge-card .section-title-center {
  /* margin-bottom: clamp(50px, 2vw, 90px); */
}

.section-title-img {
  text-align: center;
  margin-bottom: clamp(20px, 3vw, 40px);
}

.reports .section-title-img {
  /* margin-bottom: clamp(80px, 11.5vw, 221px); */
}

.origins .section-title-img {
  /* margin-bottom: clamp(100px, 15.3vw, 294px); */
}

.games .section-title-img {
  /* margin-bottom: clamp(100px, 15.1vw, 289px); */
}

.ai-edu .section-title-img {
  /* margin-bottom: clamp(80px, 12.2vw, 235px); */
}

.section-title-img img {
  max-height: clamp(80px, 12vw, 200px);
  margin: 0 auto;
}

/* ========================
   Banner
   ======================== */
.banner {
  position: relative;
  width: 100%;
  overflow: hidden;
}

.banner-bg img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.banner-logo {
  position: absolute;
  left: clamp(16px, 16vw, 311px);
  top: clamp(16px, 2vw, 37px);
}

.banner-logo img {
  width: clamp(120px, 15vw, 252px);
  height: auto;
}

/* ========================
   专题报道
   ======================== */
.reports {
  background: var(--color-bg-cream);
  padding-top: clamp(40px, 3.54vw, 68px);
  padding-bottom: clamp(50px, 5.16vw, 99px);
}

.reports-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(16px, 2vw, 24px);
}

.report-card {
  display: block;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
}

.report-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
}

.card-img {
  width: 100%;
  aspect-ratio: 732 / 367;
  overflow: hidden;
}

.card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.report-card:hover .card-img img {
  transform: scale(1.05);
}

.card-body {
  padding: clamp(16px, 1.5vw, 20px);
}

.card-tag {
  display: inline-block;
  background: var(--color-orange);
  color: var(--color-white);
  font-size: clamp(14px, 1.2vw, 20px);
  padding: 4px 20px;
  border-radius: var(--radius-full);
  margin-bottom: clamp(10px, 1vw, 16px);
}

.card-title {
  font-size: clamp(18px, 1.6vw, 24px);
  font-weight: 400;
  line-height: 1.4;
  margin-bottom: clamp(8px, 1vw, 12px);
}

.card-desc {
  font-size: clamp(14px, 1.2vw, 20px);
  color: var(--color-text-gray);
  line-height: 1.5;
  margin-bottom: clamp(12px, 1.5vw, 20px);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: clamp(10px, 1vw, 16px);
  border-top: 1px solid var(--color-border);
}

.card-date {
  font-size: clamp(14px, 1.2vw, 20px);
  color: var(--color-text-gray);
}

.card-link {
  font-size: clamp(14px, 1.2vw, 20px);
  color: var(--color-primary);
  transition: color 0.3s ease;
}

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

.btn-more-wrap {
  text-align: center;
  margin-top: clamp(24px, 3vw, 40px);
}

.btn-more {
  display: inline-block;
  padding: clamp(6px, 0.6vw, 8px) clamp(32px, 3vw, 48px);
  background: var(--color-white);
  color: var(--color-teal);
  font-size: clamp(16px, 1.4vw, 20px);
  border: 1px solid var(--color-teal);
  border-radius: var(--radius-full);
  transition: all 0.3s ease;
}

.btn-more:hover {
  background: var(--color-teal);
  color: var(--color-white);
  transform: scale(1.05);
}

/* ========================
   节日由来
   ======================== */
.origins {
  background: var(--color-bg-blue);
  padding-top: clamp(50px, 5.21vw, 100px);
  padding-bottom: clamp(12px, 1.2vw, 23px);
}

.origins-content {
  display: grid;
  grid-template-columns: 416px 1fr;
  gap: clamp(20px, 2.5vw, 40px);
  align-items: start;
}

.origins-left img {
  width: 100%;

  border-radius: var(--radius-lg);
  height: 100%;
  object-fit: cover;
}

.origins-right {
  display: flex;
  flex-direction: column;
  gap: clamp(16px, 2vw, 24px);
}

.origin-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: clamp(16px, 1.5vw, 20px);
}

.origin-title {
  font-size: clamp(24px, 2.2vw, 36px);
  font-weight: 400;
  margin-bottom: clamp(12px, 1.5vw, 20px);
}

.origin-text {
  font-size: clamp(14px, 1.2vw, 20px);
  color: var(--color-text-dark);
  line-height: 1.8;
  margin-bottom: clamp(12px, 1.5vw, 20px);
}

.origin-text p + p {
  margin-top: 0.8em;
}

.origin-source {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: clamp(14px, 1.2vw, 20px);
  color: var(--color-primary);
}

.origin-source img {
  width: clamp(16px, 1.5vw, 24px);
  height: auto;
}

/* ========================
   各国习俗
   ======================== */
.customs {
  background: var(--color-bg-blue);
  padding-top: 0;
  padding-bottom: clamp(60px, 6.15vw, 118px);
}

.customs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(16px, 1.5vw, 24px);
}

.custom-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: clamp(16px, 1.5vw, 20px);
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
}

.custom-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
}

.custom-flag {
  width: clamp(100px, 8vw, 134px);
  height: clamp(60px, 5vw, 90px);
  object-fit: cover;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  margin-bottom: clamp(10px, 1vw, 16px);
}

.custom-name {
  font-size: clamp(24px, 2.2vw, 36px);
  font-weight: 400;
  margin-bottom: clamp(8px, 1vw, 12px);
}

.custom-desc {
  font-size: clamp(14px, 1.4vw, 24px);
  color: var(--color-text-dark);
  line-height: 1.6;
}

/* ========================
   传统游戏
   ======================== */
.games {
  background: var(--color-bg-cream);
  padding-top: clamp(40px, 3.59vw, 69px);
  padding-bottom: clamp(34px, 3.39vw, 65px);
}

.games-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(16px, 1.5vw, 24px);
}

.game-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  text-align: center;
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
}

.game-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
}

.game-card > img {
  width: 100%;
  aspect-ratio: 487 / 193;
  object-fit: cover;
  border-top-left-radius: var(--radius-lg);
  border-top-right-radius: var(--radius-lg);
  transition: transform 0.5s ease;
}

.game-card:hover > img {
  transform: scale(1.05);
}

.game-name {
  font-size: clamp(24px, 2.2vw, 36px);
  font-weight: 400;
  margin: clamp(12px, 1.5vw, 20px) 0 clamp(8px, 1vw, 12px);
}

.game-desc {
  font-size: clamp(14px, 1.4vw, 24px);
  color: var(--color-text-dark);
  line-height: 1.6;
  padding: 0 clamp(12px, 1.5vw, 20px) clamp(16px, 2vw, 24px);
}

.games-tip {
  max-width: 974px;
  margin: clamp(24px, 3vw, 40px) auto 0;
  text-align: center;
  font-size: clamp(14px, 1.4vw, 24px);
  color: var(--color-text);
  line-height: 1.6;
  padding: 0 16px;
}

/* ========================
   AI+教育
   ======================== */
.ai-edu {
  background: var(--color-bg-blue);
  padding-top: clamp(40px, 3.7vw, 71px);
  padding-bottom: 0;
}

.ai-policy {
  background: var(--color-primary);
  border-radius: var(--radius-lg);
  padding: clamp(20px, 2vw, 30px);
  margin-bottom: clamp(18px, 1.77vw, 34px);
  border: 1px solid var(--color-border);
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
}

.ai-policy:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(13, 98, 189, 0.25);
}

.ai-policy-title {
  font-size: clamp(20px, 2vw, 30px);
  font-weight: 400;
  color: var(--color-white);
  margin-bottom: clamp(12px, 1.5vw, 20px);
}

.ai-policy-text {
  font-size: clamp(14px, 1.2vw, 20px);
  color: var(--color-white);
  line-height: 1.8;
  margin-bottom: clamp(12px, 1.5vw, 20px);
}

.ai-policy-text p + p {
  margin-top: 0.5em;
}

.ai-policy-source {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: clamp(14px, 1.2vw, 20px);
  color: var(--color-white);
}

.ai-policy-source img {
  width: clamp(16px, 1.5vw, 24px);
  height: auto;
}

.ai-features {
  display: grid;
  grid-template-columns: 415px 1fr;
  gap: clamp(20px, 2.5vw, 40px);
  align-items: start;
}

.ai-left {
  height: 100%;
}

.ai-left img {
  width: 100%;
  border-radius: var(--radius-lg);
  height: 100%;
  object-fit: cover;
}

.ai-right {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(16px, 1.5vw, 24px);
}

.ai-feature-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: clamp(16px, 1.5vw, 24px);
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
}

.ai-feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.ai-feature-icon {
  position: relative;
  display: flex;
  align-items: center;
  height: clamp(48px, 5vw, 77px);
  margin-bottom: clamp(10px, 1vw, 16px);
}

.ai-feature-icon > img:first-child {
  object-fit: contain;
}

.ai-icon-deco,
.ai-icon-deco2,
.ai-icon-deco3,
.ai-icon-deco4 {
  position: absolute;
  width: 40%;
  height: 40%;
  object-fit: contain;
}

.ai-icon-deco {
  right: -5%;
  bottom: -5%;
}

.ai-icon-deco2 {
  right: 10%;
  bottom: 10%;
}

.ai-icon-deco3 {
  right: 20%;
  bottom: 0%;
}

.ai-icon-deco4 {
  right: 5%;
  bottom: 15%;
}

.ai-feature-title {
  font-size: clamp(16px, 1.6vw, 24px);
  font-weight: 400;
  color: var(--color-text-dark);
}

.ai-feature-desc {
  font-size: clamp(14px, 1.4vw, 24px);
  color: var(--color-text-dark);
  line-height: 1.6;
}

/* ========================
   教育指南
   ======================== */
.guide {
  background: var(--color-bg-blue);
  padding-top: clamp(12px, 1.2vw, 23px);
  padding-bottom: 0;
}

.guide-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: clamp(20px, 2vw, 30px);
}

.guide-title {
  font-size: clamp(20px, 2vw, 30px);
  font-weight: 400;
  margin-bottom: clamp(12px, 1.5vw, 20px);
}

.guide-intro {
  font-size: clamp(14px, 1.2vw, 20px);
  color: var(--color-text-gray);
  line-height: 1.8;
  margin-bottom: clamp(20px, 2.5vw, 36px);
}

.guide-timeline {
  position: relative;
  margin-bottom: clamp(16px, 2vw, 24px);
}

.timeline-line {
  display: flex;
  justify-content: space-around;
  align-items: center;
  padding: 0 clamp(40px, 8vw, 150px);
  position: relative;
  z-index: 10;
}

.timeline-line::before {
  /* content: '';
    position: absolute;
    top: 50%;
    left: clamp(80px, 12vw, 233px);
    right: clamp(80px, 12vw, 233px);
    height: 2px;
    background: var(--color-border);
    transform: translateY(-50%); */
}

.timeline-dot {
  width: clamp(60px, 8vw, 149px);
  height: clamp(60px, 8vw, 149px);
  border-radius: 50%;
  position: relative;
  z-index: 1;
  transition: transform 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
}

.timeline-dot:hover {
  transform: scale(1.1);
}

.dot-primary {
  background: var(--color-yellow);
}

.dot-secondary {
  background: var(--color-primary);
}

.dot-tertiary {
  background: var(--color-teal);
}

.timeline-arrows {
  display: flex;
  justify-content: space-around;
  padding: 0 clamp(40px, 8vw, 150px) 0;
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%) !important;
}

.timeline-arrows img {
  width: 34%;
  height: 20px;
}

.guide-stages {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(16px, 2vw, 32px);
  margin-bottom: clamp(20px, 2vw, 30px);
}

.stage-card {
  border-radius: var(--radius-lg);
  padding: clamp(16px, 1.5vw, 24px);
  color: var(--color-white);
  text-align: center;
  transition: transform 0.3s ease;
}

.stage-card:hover {
  transform: translateY(-4px);
}

.stage-primary {
  background: var(--color-yellow);
}

.stage-secondary {
  background: var(--color-primary);
}

.stage-tertiary {
  background: var(--color-teal);
}

.stage-card h4 {
  font-size: clamp(16px, 1.6vw, 24px);
  font-weight: 400;
  margin-bottom: clamp(8px, 1vw, 12px);
}

.stage-card p {
  font-size: clamp(14px, 1.2vw, 20px);
  line-height: 1.6;
}

.guide-source {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: clamp(14px, 1.2vw, 20px);
  color: var(--color-text-gray);
  padding-top: clamp(12px, 1.5vw, 20px);
  border-top: 1px solid var(--color-border);
}

.guide-source img {
  width: clamp(16px, 1.5vw, 24px);
  height: auto;
  margin-top: 4px;
  flex-shrink: 0;
}

.guide-source div {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

/* ========================
   课程资源 & 科普知识
   ======================== */
.resources {
  background: var(--color-bg-blue);
  padding-top: clamp(26px, 2.55vw, 49px);
  padding-bottom: 0;
}

.knowledge {
  background: var(--color-bg-blue);
  padding-top: clamp(32px, 3.13vw, 60px);
  padding-bottom: clamp(16px, 1.61vw, 31px);
}

.footer-tip {
  background: var(--color-bg-blue);
  padding-top: 0;
  padding-bottom: clamp(20px, 3vw, 40px);
}

.resources-card,
.knowledge-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: clamp(20px, 2vw, 30px);
}

.resources-grid,
.knowledge-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(16px, 2vw, 32px);
}

.resource-item,
.knowledge-item {
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
}

.resource-item {
  background: #333333;
  border: 1px solid #333333;
}

.knowledge-item {
  background: var(--color-primary);
  border: 1px solid var(--color-border);
}

.resource-item:hover,
.knowledge-item:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
}

.resource-item img,
.knowledge-item img {
  width: 100%;
  aspect-ratio: 700 / 311;
  object-fit: cover;
  border-top-left-radius: var(--radius-lg);
  border-top-right-radius: var(--radius-lg);
}

.resource-name,
.knowledge-name {
  font-size: clamp(16px, 1.6vw, 24px);
  font-weight: 400;
  color: var(--color-white);
  text-align: center;
  padding: clamp(12px, 1.5vw, 24px) clamp(16px, 2vw, 20px);
}

/* ========================
   底部提示
   ======================== */
.footer-tip {
  text-align: center;
}

.footer-tip p {
  font-size: clamp(14px, 1.4vw, 24px);
  color: var(--color-text);
}

/* ========================
   动画
   ======================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.animate {
  opacity: 0;
}

.animate.in-view {
  animation: fadeInUp 0.8s ease forwards;
}

.animate-delay-1 {
  animation-delay: 0.1s;
}
.animate-delay-2 {
  animation-delay: 0.2s;
}
.animate-delay-3 {
  animation-delay: 0.3s;
}
.animate-delay-4 {
  animation-delay: 0.4s;
}
.animate-delay-5 {
  animation-delay: 0.5s;
}

.banner-logo {
  animation: fadeIn 1s ease 0.3s both;
}

.qrcode-wrapper {
  padding: 80px;
}
.qrcode-box {
  width: 150px;
  margin: 0 auto;
  text-align: center;
  background-color: rgba(0, 0, 0, 0.4);
  color: #fff;
  padding: 15px;
  border-radius: 4px;
  font-size: 16px;
}

.qrcode img {
  width: 100%;
}

.bottom {
  background: #2a46f1;
  width: 100%;
}

.bottom p {
  color: #ffffff;
}

.bottom p a {
  color: #ffffff !important;
}

.bottom-small {
  display: none;
}

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

/* 平板 */
@media (max-width: 1024px) {
  .origins-content {
    grid-template-columns: 1fr;
  }

  .origins-left {
    max-width: 500px;
    margin: 0 auto;
  }

  .ai-features {
    grid-template-columns: 1fr;
  }

  .ai-left {
    max-width: 500px;
    margin: 0 auto;
  }

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

  .guide-stages {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .timeline-line,
  .timeline-arrows {
    display: none;
  }
}

/* 手机 */
@media (max-width: 768px) {
  :root {
    --container-max: 96vw;
  }

  .reports-grid,
  .customs-grid,
  .games-grid,
  .ai-right,
  .resources-grid,
  .knowledge-grid {
    grid-template-columns: 1fr;
  }
  .customs-grid .custom-card .custom-flag {
    margin: 0 auto;
  }
  .customs-grid .custom-card .custom-name {
    text-align: center;
    margin-top: 12px;
  }
  .custom-desc{
    text-align: justify;
  }
  .origins-left{
    display: none;
  }
  .ai-left{
    display: none;
  }
  .banner-logo {
    left: 12px;
    top: 12px;
  }

  .banner-logo img {
    width: 108px;
  }

  .card-footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .guide-source {
    flex-direction: column;
  }

  .ai-feature-icon {
    height: 56px;
    display: flex;
    align-items: center;
  }

  .stage-card h4 {
    margin-bottom: 6px;
  }

  .qrcode-wrapper {
    padding: 50px;
  }
  .qrcode-box {
    width: 150px;
    margin: 0 auto;
    text-align: center;
    background-color: rgba(0, 0, 0, 0.4);
    color: #fff;
    padding: 15px;
    border-radius: 4px;
    font-size: 14px;
  }
  .qrcode img {
    width: 100%;
  }

  .bottom-small {
    background: #2a46f1;
    text-align: center;
    padding: 0.2rem 0;
    line-height: 0.35rem;
    width: 100%;
    /* margin-top:1rem; */
  }

  .bottom-small p {
    color: #ffffff;
  }

  .bottom-small p a {
    color: #ffffff !important;
  }

  .bottom {
    display: none;
  }

  .bottom-small {
    display: block;
  }
}

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