/* ============================================================
   Site Home - 门户首页样式
   设计令牌见 design-tokens.css
   ============================================================ */

/* ==================== Banner / 顶部横幅 ==================== */
.site-home .top-container {
  position: relative;
  width: 100%;
  height: 500px;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.site-home .top-text-container {
  position: relative;
  opacity: 1;
  transition: all ease-in-out 2s;
  padding-top: 150px;
  padding-left: 180px;
}

.site-home .top-text1 {
  width: 100%;
  font-size: 60px;
  color: #ffffff;
  font-weight: 400;
  letter-spacing: -1.8px;
  line-height: 1.1;
}

.site-home .top-text2 {
  width: 100%;
  font-size: 42px;
  color: #ffffff;
  font-weight: 400;
  letter-spacing: -0.84px;
  margin-top: var(--spacing-md);
  line-height: 1.2;
}

/* Banner 轮播导航点 */
.site-home .banner-dots {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 12px;
  z-index: 3;
}

.site-home .banner-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.7);
  background: transparent;
  cursor: pointer;
  transition: all 0.3s;
  padding: 0;
}

.site-home .banner-dot.active {
  background: #fff;
  border-color: #fff;
  transform: scale(1.2);
}

/* ==================== Section（频道区块） ==================== */
.site-home #section1,
.site-home #section2,
.site-home #section3 {
  background: var(--color-canvas);
  padding-top: var(--spacing-section);
  padding-bottom: var(--spacing-section);
  position: relative;
}

/* ==================== 频道标题栏 ==================== */
.site-home .swiper-item-top {
  padding: var(--spacing-xs) 0;
  max-width: var(--content-max-width);
  margin: 0 auto var(--spacing-base);
  padding-left: var(--spacing-base);
  box-sizing: border-box;
  background: transparent;
  border-bottom: 1px solid var(--color-hairline);
}

.site-home .swiper-item-top-title {
  display: inline-block;
  color: var(--color-ink);
  font-size: var(--text-caption-uppercase);
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  line-height: 1.4;
  margin: 0;
  padding: var(--spacing-xxs) var(--spacing-sm);
  background: var(--color-surface-strong);
  border-radius: var(--radius-pill);
}

/* ==================== 应用价值轮播 ==================== */
.site-home .swipe-container {
  position: relative;
  width: 100%;
  height: 540px;
  overflow: hidden;
}

.site-home .swipe-out {
  position: absolute;
  height: 100%;
  width: calc((300px + 20px) * 6);
  display: flex;
  justify-content: left;
  left: max(var(--spacing-base), calc((100% - var(--content-max-width)) / 2));
  top: 0;
  padding-top: 34px;
  padding-bottom: 12px;
  box-sizing: border-box;
  transition: all ease-out 0.3s;
}

.site-home .swipe-icon {
  opacity: 0;
  position: absolute;
  width: 52px;
  height: 52px;
  border-radius: 100px;
  background: rgba(218, 218, 218, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all ease-out 0.3s;
  cursor: pointer;
  top: calc((100% - 52px) / 2);
  z-index: 2;
}

.site-home .swipe-container:hover .swipe-icon {
  opacity: 1;
}

.site-home .swipe-icon:hover {
  transform: scale3d(1.11, 1.11, 1.11);
  background: rgba(218, 218, 218, 0.8);
}

.site-home .swipe-icon-left {
  left: 35px;
}

.site-home .swipe-icon-right {
  right: 35px;
}

.site-home .swipe-icon span {
  font-size: 30px;
  color: #555;
  line-height: 52px;
  user-select: none;
}

.site-home .swipe-item {
  position: relative;
  width: 300px;
  height: 100%;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-hairline);
  background: var(--color-surface-card);
  padding: var(--spacing-lg);
  box-sizing: border-box;
  margin-left: var(--spacing-md);
  transition: border-color 0.2s ease;
  cursor: pointer;
}

.site-home .swipe-item:hover {
  border-color: var(--color-hairline-strong);
  transform: none;
}

.site-home .swipe-item-text1 {
  font-size: 18px;
  font-weight: 600;
  font-family: var(--font-sans);
  color: var(--color-ink);
}

.site-home .swipe-item-text2 {
  font-size: 21px;
  font-weight: 400;
  font-family: var(--font-sans);
  color: var(--color-body);
}

/* ---------- 通用图片类 ---------- */
.site-home .img-4 {
  max-width: 100%;
  object-fit: contain;
}

/* ==================== Container4（功能特性 - 图文左右布局） ==================== */
.site-home .container4 {
  position: relative;
  padding: var(--spacing-section) var(--spacing-base) 0;
  max-width: var(--content-max-width);
  margin: 0 auto;
}

.site-home .container4 .container4-title {
  position: relative;
  display: flex;
  align-items: flex-end;
  padding-bottom: var(--spacing-lg);
}

.site-home .container4 .container4-title .container4-title-text1 {
  color: var(--color-ink);
  font-size: var(--text-display-lg);
  font-weight: 400;
  letter-spacing: -0.72px;
  line-height: 1.2;
}

.site-home .container4 .container4-title .container4-title-text2 {
  color: var(--color-muted);
  font-size: var(--text-body-md);
  padding-left: var(--spacing-sm);
}

.site-home .container4 .container4-content {
  position: relative;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
}

.site-home .container4 .container4-content .container4-img {
  width: 700px;
  text-align: center;
}

.site-home .container4 .container4-content .container4-img img {
  width: 100%;
  object-fit: contain;
}

.site-home .container4 .container4-content .container4-right {
  width: calc(100% - 800px);
  box-sizing: border-box;
}

.site-home .container4 .container4-content .container4-right .container4-right-title {
  font-weight: 600;
  font-size: 18px;
  line-height: 1.4;
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
  color: var(--color-ink);
}

.site-home .container4 .container4-content .container4-right .container4-right-text {
  font-size: var(--text-body-md);
  line-height: 1.5;
  color: var(--color-body);
}

.site-home .container4 .container4-content .container4-right .container4-right-text1 {
  font-size: var(--text-body-md);
  line-height: 1.5;
  color: var(--color-body);
}

.site-home .container4 .container4-content .container4-right .container4-right-text-title {
  font-size: var(--text-display-lg);
  font-weight: 400;
  letter-spacing: -0.72px;
  margin-bottom: var(--spacing-xxl);
  color: var(--color-ink);
}

.site-home .container4 .container4-content .container4-right .container4-right-text-line {
  width: 316px;
  height: 1px;
  border-bottom: 1px solid var(--color-hairline);
  margin: var(--spacing-xs) 0;
}

/* ==================== Container5（相册 / 图库网格布局） ==================== */
.site-home .container5 {
  width: 100%;
  position: relative;
  padding: 0 0 60px;
}

.site-home .container5 .container5-title {
  text-align: center;
  font-size: var(--text-display-lg);
  font-weight: 400;
  letter-spacing: -0.72px;
  color: var(--color-ink);
  padding-bottom: var(--spacing-xl);
}

.site-home .container5 .container5-content1 {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  max-width: var(--content-max-width);
  margin: var(--spacing-xl) auto;
  padding: 0 var(--spacing-base);
  gap: var(--spacing-lg);
}

.site-home .container5 .container5-content1 .container5-content1-item {
  width: calc(100% / 3 - var(--spacing-lg));
  display: flex;
  box-sizing: border-box;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-hairline);
  overflow: hidden;
  background: var(--color-surface-card);
}

.site-home .container5 .container5-content1 .container5-content1-item:nth-child(3n) {
  margin-right: 0;
}

.site-home .container5 .container5-content1 .container5-content1-item .item-img {
  width: 100%;
  height: 100%;
}

.site-home .container5 .container5-content1 .container5-content1-item .item-img .img-3 {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ============================================================
   布局级样式（header / footer / to-top）
   ============================================================ */

/* ---------- Header 顶部导航栏 ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--color-canvas);
  z-index: 1000;
  border-bottom: 1px solid var(--color-hairline);
}

.site-header-center {
  max-width: var(--content-max-width);
  margin: 0 auto;
  height: 100%;
  padding: 0 var(--spacing-base);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-base);
}

.site-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
  color: var(--color-ink);
  min-width: 0;
}

.site-brand-tagline {
  font-size: var(--text-body-sm);
  font-weight: 400;
  color: var(--color-muted);
  line-height: 1.4;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.site-logo {
  height: 40px;
  width: auto;
  object-fit: contain;
  flex-shrink: 0;
}

/* Primary CTA — DESIGN button-primary */
.site-btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 10px 18px;
  font-size: var(--text-btn);
  font-weight: 500;
  font-family: var(--font-sans);
  line-height: 1;
  color: var(--color-on-primary);
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.15s ease;
  white-space: nowrap;
}

.site-btn-primary:hover {
  background: var(--color-primary-active);
  color: var(--color-on-primary);
}

.site-btn-primary-block {
  width: 100%;
}

/* 导航列表 */
.site-nav-list {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  align-items: center;
}

.site-nav-item {
  position: relative;
  padding: 0 var(--spacing-sm);
  list-style: none;
}

.site-nav-item-cta {
  padding-left: var(--spacing-base);
}

.site-nav-item a:not(.site-btn-primary) {
  display: block;
  color: var(--color-ink);
  font-size: var(--text-nav);
  font-weight: 500;
  text-decoration: none;
  line-height: var(--header-height);
  position: relative;
}

.site-nav-item a:not(.site-btn-primary)::after {
  position: absolute;
  content: "";
  width: 0;
  height: 2px;
  background-color: var(--color-ink);
  left: 0;
  right: 0;
  margin: auto;
  bottom: 18px;
  transition: width 0.2s ease-out;
}

.site-nav-item a:not(.site-btn-primary):hover::after,
.site-nav-item a:not(.site-btn-primary):focus-visible::after {
  width: 100%;
}

.site-nav-item a:not(.site-btn-primary):hover {
  color: var(--color-ink);
}

/* ---------- 移动端汉堡菜单按钮 ---------- */
.site-nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
}

.site-nav-toggle-icon {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 24px;
}

.site-nav-toggle-icon span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-ink);
  border-radius: 2px;
  transition: all 0.3s;
}

.site-nav-toggle-icon.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.site-nav-toggle-icon.open span:nth-child(2) {
  opacity: 0;
}

.site-nav-toggle-icon.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ---------- 移动端全屏覆盖菜单 ---------- */
.site-mobile-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 999;
  animation: fadeIn 0.2s ease-out;
}

.site-mobile-nav {
  position: absolute;
  top: 0;
  right: 0;
  width: 75%;
  max-width: 320px;
  height: 100%;
  background: var(--color-surface-card);
  border-left: 1px solid var(--color-hairline);
  animation: slideInRight 0.25s ease-out;
  display: flex;
  flex-direction: column;
}

.site-mobile-nav-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--color-hairline);
}

.site-mobile-close {
  font-size: 28px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-ink);
  line-height: 1;
  padding: var(--spacing-xs);
  border-radius: var(--radius-xs);
}

.site-mobile-nav-body {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-sm) 0;
}

.site-mobile-nav-link {
  display: block;
  padding: 14px var(--spacing-md);
  font-size: var(--text-body-md);
  color: var(--color-ink);
  text-decoration: none;
  transition: background 0.2s;
  border-bottom: 1px solid var(--color-hairline-soft);
}

.site-mobile-nav-link:hover {
  background: var(--color-canvas-soft);
  color: var(--color-ink);
}

.site-mobile-nav-cta {
  padding: var(--spacing-md);
  border-top: 1px solid var(--color-hairline);
}

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

@keyframes slideInRight {
  from { transform: translateX(100%); }
  to { transform: translateX(0); }
}

/* ---------- 主体区域 ---------- */
.site-main {
  min-height: calc(100vh - var(--header-height));
}

.site-main-below-header {
  padding-top: var(--header-height);
}

/* ---------- Footer 页脚 ---------- */
.site-rich-footer {
  position: relative;
  width: 100%;
  background: var(--color-canvas);
  border-top: 1px solid var(--color-hairline);
  padding: 64px 0 48px;
  box-sizing: border-box;
}

.footer-inner {
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-base);
}

.footer-top {
  border-bottom: 1px solid var(--color-hairline);
  padding-bottom: var(--spacing-xl);
  margin-bottom: var(--spacing-xxl);
}

.footer-brand {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-logo {
  height: 50px;
  width: auto;
}

.footer-contact {
  display: flex;
  gap: 40px;
  align-items: center;
}

.footer-contact-item {
  font-weight: 500;
  color: var(--color-ink);
}

.footer-contact-mail {
  font-size: var(--text-body-md);
  line-height: 1.5;
}

.footer-contact-phone {
  font-size: var(--text-display-sm);
  line-height: 1.3;
  font-weight: 400;
  letter-spacing: -0.11px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
}

.footer-address-row {
  display: flex;
  line-height: 1.5;
  font-size: var(--text-body-sm);
  color: var(--color-body);
}

.footer-address-label {
  width: 100px;
  flex-shrink: 0;
}

.footer-address-value {
  width: calc(100% - 100px);
}

.footer-qr {
  display: flex;
  gap: 16px;
}

.footer-qr-item {
  width: 120px;
  text-align: center;
}

.footer-qr-item img {
  width: 100%;
  height: 120px;
  object-fit: cover;
  border-radius: 4px;
}

.footer-qr-label {
  margin-top: var(--spacing-xs);
  font-size: var(--text-body-sm);
  color: var(--color-muted);
  text-align: center;
}

.footer-icp {
  margin-top: var(--spacing-xxl);
  font-size: var(--text-body-sm);
  color: var(--color-muted);
}

.footer-icp a {
  color: var(--color-body);
  text-decoration: none;
}

.footer-icp a:hover {
  color: var(--color-ink);
}

.footer-icp-sep {
  margin: 0 6px;
}

/* ---------- 分类导航 ---------- */
.portal-category-nav {
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: var(--spacing-md) var(--spacing-base);
}

.portal-cat-group {
  margin-bottom: var(--spacing-base);
}

.portal-cat-title {
  display: inline-block;
  background: var(--color-surface-strong);
  color: var(--color-ink);
  padding: var(--spacing-xxs) var(--spacing-sm);
  font-size: var(--text-caption-uppercase);
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  line-height: 1.4;
  border-radius: var(--radius-pill);
  box-sizing: border-box;
}

.portal-cat-link {
  display: block;
  color: var(--color-ink);
  text-decoration: none;
  font-size: var(--text-body-sm);
  padding: var(--spacing-xxs) 0;
  cursor: pointer;
  transition: color 0.2s;
}

.portal-cat-link:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

.portal-cat-children {
  margin-left: 24px;
}

/* ---------- 回到顶部按钮 ---------- */
.site-to-top {
  position: fixed;
  right: var(--spacing-lg);
  bottom: var(--spacing-lg);
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--color-primary);
  color: var(--color-on-primary);
  border: 1px solid var(--color-primary);
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.2s, border-color 0.2s;
  opacity: 0;
  visibility: hidden;
  z-index: 999;
}

.site-to-top:hover {
  background: var(--color-primary-active);
  border-color: var(--color-primary-active);
  transform: none;
}

.site-to-top-visible {
  opacity: 1;
  visibility: visible;
}

/* ============================================================
   响应式布局
   ============================================================ */

/* --- 1280px 以下（内容区收窄） --- */
@media screen and (max-width: 1280px) {
  .site-home .container4 .container4-content .container4-img {
    width: 450px;
  }

  .site-home .container4 .container4-content .container4-right {
    width: calc(100% - 500px);
  }
}

/* --- 1024px 以下（平板） --- */
@media screen and (max-width: 1024px) {
  .site-home #section1,
  .site-home #section2,
  .site-home #section3 {
    padding-top: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
  }

  .site-home .top-text1 {
    font-size: 56px;
    letter-spacing: -1.4px;
  }

  .site-home .top-text2 {
    font-size: 32px;
  }

  .site-brand-tagline {
    display: none;
  }

  .site-home .swipe-container {
    height: 540px;
  }

  .site-home .swipe-out {
    left: var(--spacing-md);
  }

  .site-home .swipe-item {
    width: 265px;
  }

  .site-home .swipe-icon {
    opacity: 1;
  }

  .site-home .container4 {
    padding: var(--spacing-xl) var(--spacing-md) 0;
  }

  .site-home .container4 .container4-content {
    justify-content: center;
  }

  .site-home .container4 .container4-content .container4-img {
    width: min(550px, 100%);
    margin-top: var(--spacing-sm);
  }

  .site-home .container4 .container4-content .container4-right {
    width: 100%;
    padding-left: 0;
    margin-top: var(--spacing-sm);
  }

  .site-home .container5 .container5-content1 .container5-content1-item {
    width: calc(50% - var(--spacing-lg));
  }

  .site-nav-list {
    display: none;
  }

  .site-nav-toggle {
    display: flex;
  }
}

/* --- 640px 以下（手机） --- */
@media screen and (max-width: 639px) {
  .site-home .top-container {
    height: 214px;
  }

  .site-home .top-text-container {
    padding-top: 50px;
    padding-left: 0;
    text-align: center;
  }

  .site-home .top-text1 {
    font-size: 32px;
    letter-spacing: -0.96px;
  }

  .site-home .top-text2 {
    font-size: 20px;
    margin-top: var(--spacing-xs);
  }

  .site-home .container4 .container4-title .container4-title-text1,
  .site-home .container4 .container4-content .container4-right .container4-right-text-title,
  .site-home .container5 .container5-title {
    font-size: 24px;
    letter-spacing: -0.48px;
  }

  .site-home .container5 .container5-content1 .container5-content1-item {
    width: 100%;
  }

  .site-logo {
    height: 32px;
  }

  .site-rich-footer {
    padding: 40px 0;
  }

  .footer-inner {
    padding: 0 20px;
  }

  .footer-logo {
    display: none;
  }

  .footer-top {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 10px;
  }

  .footer-brand {
    justify-content: center;
  }

  .footer-contact {
    flex-direction: column;
    gap: 0;
    align-items: center;
  }

  .footer-contact-mail {
    font-size: 14px;
    line-height: 20px;
    margin-bottom: 10px;
  }

  .footer-contact-phone {
    font-size: 18px;
    line-height: 18px;
    text-align: center;
  }

  .footer-bottom {
    flex-wrap: wrap;
    justify-content: center;
  }

  .footer-address {
    width: 100%;
  }

  .footer-address-row {
    line-height: 20px;
    font-size: 10px;
  }

  .footer-address-label {
    width: 50px;
  }

  .footer-qr {
    justify-content: center;
    margin-top: 40px;
    width: 100%;
  }

  .footer-qr-item {
    width: 60px;
  }

  .footer-qr-item img {
    height: 60px;
  }

  .footer-qr-label {
    font-size: 10px;
  }

  .footer-icp {
    margin-top: 22px;
    text-align: center;
    font-size: 10px;
  }

  .footer-icp span {
    display: inline-block;
    width: 100%;
  }

  .footer-icp-sep {
    margin: 0;
  }

  /* SiteToTop 响应式 */
  .site-to-top {
    right: 16px;
    bottom: 16px;
    width: 40px;
    height: 40px;
    font-size: 18px;
  }

  /* 分类导航响应式 */
  .portal-category-nav {
    padding: var(--spacing-base);
  }

  .portal-cat-link {
    font-size: var(--text-caption);
  }
}