/* ==========================================================================
   四川泓炜特种门业有限责任公司 - 响应式自适应布局样式 (responsive.css)
   最大宽度 1920px，适配 4K/2K、PC、平板及智能手机移动端
   ========================================================================== */

/* --------------------------------------------------------------------------
   大屏显示适配 (1440px - 1920px)
   -------------------------------------------------------------------------- */
@media (max-width: 1600px) {
  .hero-title {
    font-size: 56px;
  }
  .section-title {
    font-size: 36px;
  }
}

/* --------------------------------------------------------------------------
   标准桌面显示适配 (1200px - 1439px)
   -------------------------------------------------------------------------- */
@media (max-width: 1400px) {
  :root {
    --content-padding-h: 30px;
  }
  
  .hero-title {
    font-size: 48px;
  }
  
  .hero-subtitle {
    font-size: 20px;
  }
  
  .nav-link {
    padding: 10px 16px;
    font-size: 15px;
  }
  
  .stats-grid {
    gap: 15px;
  }
  
  .stat-num-box {
    font-size: 42px;
  }
  
  .door-wing-caption {
    font-size: 22px;
  }
}

/* --------------------------------------------------------------------------
   小屏桌面与横屏平板适配 (992px - 1199px)
   -------------------------------------------------------------------------- */
@media (max-width: 1199px) {
  .top-bar-left {
    display: none; /* 简化顶部条 */
  }
  
  .nav-link {
    padding: 8px 12px;
    font-size: 14.5px;
  }
  
  .brand-title-zh {
    font-size: 17px;
    letter-spacing: 0.5px;
  }

  .brand-title-en {
    font-size: 7.5px;
    letter-spacing: 0.5px;
  }
  
  .brand-logo img {
    height: 44px;
  }
  
  .culture-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  
  .stat-card:nth-child(2) {
    border-right: none;
  }
  
  .stat-card {
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }
  
  .gate-core-pillars {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .factory-showcase {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .factory-media-grid {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    width: 100%;
  }

  .factory-media-item {
    width: 100%;
    height: 180px;
  }
  
  .contact-section-grid {
    grid-template-columns: 1fr;
  }
  
  .contact-info-panel {
    padding: 40px 30px;
  }
  
  .contact-form-panel {
    padding: 40px 30px;
  }
  
  /* 首页资质专区小屏桌面自适应 4 列（第一行4个，第二行2个居中） */
  .homepage-honors-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
  }
  .homepage-honors-grid .honor-card:nth-child(5) {
    grid-column: 2;
  }
  .homepage-honors-grid .honor-img-box {
    height: 175px;
  }
  .homepage-honors-grid .honor-title {
    font-size: 14px;
  }

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

  /* 资讯详情页小屏桌面适配 */
  .news-detail-layout {
    grid-template-columns: 1fr 300px;
    gap: 30px;
  }
  .news-detail-main {
    padding: 36px 30px;
  }
}

/* --------------------------------------------------------------------------
   平板竖屏与大屏手机适配 (768px - 991px)
   开启移动端抽屉导航
   -------------------------------------------------------------------------- */
@media (max-width: 991px) {
  :root {
    --header-height: 72px;
    --header-top-height: 0px;
  }
  
  .top-bar {
    display: none;
  }
  
  .mobile-nav-toggle {
    display: block;
  }
  
  .main-nav-wrapper {
    height: var(--header-height);
  }
  
  /* 移动端抽屉导航菜单 */
  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--header-height));
    background: rgba(14, 18, 23, 0.98);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    flex-direction: column;
    align-items: stretch;
    padding: 30px 24px;
    gap: 12px;
    transform: translateX(100%);
    transition: transform var(--transition-normal);
    overflow-y: auto;
    border-top: 2px solid var(--color-gold);
  }
  
  .nav-menu.open {
    transform: translateX(0);
  }
  
  .nav-link {
    flex-direction: row;
    justify-content: space-between;
    padding: 16px 20px;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.04);
    border-left: 3px solid transparent;
  }
  
  .nav-link::after {
    display: none;
  }
  
  .nav-link:hover,
  .nav-item.active .nav-link {
    background: rgba(200, 22, 29, 0.25);
    border-left-color: var(--color-gold);
  }
  
  .nav-link .zh {
    font-size: 18px;
  }
  
  .nav-link .en {
    margin-top: 0;
    font-size: 11px;
    color: var(--color-gold);
  }
  
  /* 首屏调整 */
  .hero-video-section {
    min-height: 620px;
  }
  
  .hero-title {
    font-size: 38px;
  }
  
  .hero-subtitle {
    font-size: 16px;
    margin-bottom: 30px;
  }
  
  .hero-btns {
    flex-direction: column;
    gap: 14px;
    margin-bottom: 40px;
  }
  
  .btn-prime, .btn-outline, .btn-outline-primary, .btn-outline-white {
    width: 100%;
    max-width: 320px;
    padding: 14px 28px;
    font-size: 16px;
  }
  
  /* 门扉开门动画在移动端的适配 */
  .door-gate-section {
    height: auto;
    min-height: 600px;
    padding: 80px 0;
  }
  
  .gate-reveal-title {
    font-size: 32px;
  }
  
  .gate-core-pillars {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  
  .section {
    padding: 70px 0;
  }
  
  .section-title {
    font-size: 30px;
  }

  .section-subtitle-en {
    font-size: 12px;
    letter-spacing: 2px;
  }
  
  .products-grid {
    grid-template-columns: 1fr;
  }
  
  .cases-grid {
    grid-template-columns: 1fr;
  }
  
  .news-grid {
    grid-template-columns: 1fr;
  }
  
  /* 关于我们：企业简介网格与轮播图平板端适配 */
  .about-profile-grid {
    grid-template-columns: 1fr !important;
    gap: 36px !important;
  }

  .about-carousel {
    height: 380px;
    min-height: 340px;
  }

  .culture-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  /* 企业资质与荣誉证书平板端适配 */
  .honors-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  /* 首页资质专区平板端自适应 3 列（两行各3个，展示全部6个） */
  .homepage-honors-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  .homepage-honors-grid .honor-card:nth-child(5) {
    grid-column: auto;
  }

  .homepage-honors-grid .honor-card {
    display: flex !important;
  }

  .homepage-honors-grid .honor-img-box {
    height: 170px;
  }

  .homepage-honors-grid .honor-title {
    font-size: 14px;
  }

  .honor-img-box {
    height: 220px;
  }

  .subpage-breadcrumb-bar {
    padding-top: calc(var(--header-height) + 14px);
    padding-bottom: 12px;
  }

  /* 资讯详情页平板端适配 */
  .news-detail-layout {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .news-detail-main {
    padding: 32px 24px;
  }
  .news-detail-sidebar {
    position: static;
  }
  .news-related-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* 发展历程时间轴平板/移动端自适应：线移至最左侧 */
  .milestones-timeline {
    margin-top: 60px;
  }

  .timeline-container {
    padding: 20px 0;
    max-width: 100%;
  }

  .timeline-track {
    left: 20px;
    transform: none;
    width: 3px;
  }

  .timeline-item,
  .timeline-item-left,
  .timeline-item-right {
    display: block !important;
    width: 100% !important;
    padding-left: 52px !important;
    padding-right: 0 !important;
    margin-bottom: 28px;
    justify-content: flex-start !important;
  }

  .timeline-card,
  .timeline-item-left .timeline-card,
  .timeline-item-right .timeline-card {
    width: 100% !important;
    padding: 20px 24px;
    border-right: 1px solid var(--color-border-light) !important;
  }

  .timeline-item-left .timeline-card {
    border-left: 4px solid var(--color-primary) !important;
  }

  .timeline-item-right .timeline-card {
    border-left: 4px solid var(--color-gold) !important;
  }

  .timeline-dot,
  .timeline-item-left .timeline-dot,
  .timeline-item-right .timeline-dot {
    left: 12px !important;
    right: auto !important;
    top: 22px;
    width: 18px;
    height: 18px;
    border: 3px solid #FFFFFF;
  }

  /* 客户合作企业滚动走马灯平板端适配 */
  .clients-section {
    padding: 70px 0 80px;
  }

  .clients-marquee-wrapper::before,
  .clients-marquee-wrapper::after {
    width: 80px;
  }

  .client-logo-card {
    width: 175px;
    height: 68px;
    margin: 0 8px;
    padding: 10px 18px;
  }

  .client-logo-img {
    max-width: 135px;
    max-height: 40px;
  }
}

/* --------------------------------------------------------------------------
   智能手机移动端竖屏适配 (<= 576px)
   -------------------------------------------------------------------------- */
@media (max-width: 576px) {
  :root {
    --content-padding-h: 16px;
    --header-height: 64px;
  }
  
  .brand-logo {
    gap: 10px;
  }
  
  .brand-title-zh {
    font-size: 14px;
    letter-spacing: 0.2px;
  }
  
  .brand-title-en {
    font-size: 7px;
    letter-spacing: 0.2px;
  }
  
  .brand-logo img {
    height: 36px;
  }
  
  .hero-title {
    font-size: 28px;
    letter-spacing: 1px;
  }
  
  .hero-badge {
    font-size: 12px;
    padding: 6px 16px;
  }
  
  .hero-subtitle {
    font-size: 14px;
  }

  .section-title {
    font-size: 24px;
    letter-spacing: 1px;
  }

  .section-subtitle-en {
    font-size: 11px;
    letter-spacing: 1.5px;
    word-break: break-word;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .stat-card {
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding: 16px 10px;
  }
  
  .stat-num-box {
    font-size: 38px;
  }
  
  .door-wing {
    display: none; /* 移动小屏简化全屏双扉门，直接展示门后宏伟内容 */
  }
  
  .door-gate-inside {
    position: relative;
    opacity: 1;
    transform: none;
    pointer-events: auto;
    padding: 20px 0;
  }
  
  .door-gate-section {
    height: auto;
    min-height: auto;
    padding: 60px 0;
  }
  
  .gate-reveal-title {
    font-size: 24px;
  }
  
  .gate-core-pillars {
    grid-template-columns: 1fr;
  }
  
  .factory-feature-list {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  
  .factory-media-grid {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    width: 100%;
  }

  .factory-media-item {
    width: 100%;
    height: 125px;
  }
  
  .form-grid {
    grid-template-columns: 1fr;
  }
  
  .form-group.full {
    grid-column: span 1;
  }
  
  .footer-top-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  
  /* 悬浮工具栏在手机端的微调 */
  .floating-actions-bar {
    bottom: 20px;
    right: 16px;
    gap: 10px;
  }
  
  .float-btn {
    width: 46px;
    height: 46px;
  }
  
  .float-btn svg,
  .float-btn i {
    width: 20px;
    height: 20px;
    font-size: 20px;
  }
  
  .float-phone-card,
  .float-wechat-card {
    display: none; /* 手机端点击直接拨打电话或弹出全屏模态 */
  }

  /* 移动端面包屑条与页面头部微调 */
  .subpage-breadcrumb-bar {
    padding-top: calc(var(--header-height) + 10px);
    padding-bottom: 10px;
  }

  .subpage-breadcrumb-nav {
    font-size: 12px;
  }

  .subpage-main {
    padding-top: 32px;
  }

  /* 关于我们轮播图手机端紧凑美观适配 */
  .about-carousel {
    height: 280px;
    min-height: 250px;
    border-radius: 8px;
  }

  .about-carousel-caption {
    padding: 24px 16px 14px;
  }

  .caption-title {
    font-size: 15px;
    margin-bottom: 2px;
  }

  .caption-desc {
    font-size: 12px;
    line-height: 1.4;
  }

  .about-carousel-arrow {
    width: 34px;
    height: 34px;
  }

  .about-carousel-arrow.prev-arrow {
    left: 8px;
  }

  .about-carousel-arrow.next-arrow {
    right: 8px;
  }

  .about-carousel-badge {
    top: 10px;
    right: 10px;
    padding: 3px 8px;
    font-size: 11px;
  }

  /* 企业资质与荣誉证书手机移动端适配 */
  .cert-tabs-bar {
    gap: 8px;
    margin-bottom: 26px;
  }

  .cert-tab-btn {
    padding: 9px 16px;
    font-size: 13px;
    gap: 6px;
  }

  .cert-tab-btn .tab-count {
    min-width: 18px;
    height: 18px;
    font-size: 11px;
    padding: 0 5px;
  }

  .cert-category-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    margin-bottom: 20px;
    padding-bottom: 12px;
  }

  .cert-category-header-title h3 {
    font-size: 18px;
  }

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

  /* 首页资质专区移动端自适应 2 列（三行各2个，展示全部6个） */
  .homepage-honors-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 12px !important;
  }

  .homepage-honors-grid .honor-card:nth-child(5) {
    grid-column: auto !important;
  }

  .homepage-honors-grid .honor-card {
    display: flex !important;
  }

  .homepage-honors-grid .honor-img-box {
    height: 140px !important;
    padding: 10px !important;
  }

  .homepage-honors-grid .honor-info {
    padding: 10px 12px 14px !important;
  }

  .homepage-honors-grid .honor-title {
    font-size: 13px !important;
    min-height: 36px !important;
  }

  .homepage-honors-grid .honor-issuer {
    font-size: 11px !important;
  }

  .homepage-honors-grid .honor-badge {
    font-size: 10px !important;
    padding: 2px 6px !important;
  }

  .honor-img-box {
    height: 200px;
    padding: 14px;
  }

  .honor-info {
    padding: 14px 16px 18px;
  }

  .honor-title {
    min-height: auto;
    font-size: 15px;
  }

  /* 弹窗及关闭按钮移动端防溢出与自适应居中 */
  .lightbox-modal {
    padding: 16px;
  }

  .lightbox-content-box {
    max-width: 95vw;
  }

  .lightbox-close-btn {
    top: -44px;
    right: 0px;
    width: 38px;
    height: 38px;
  }

  .lightbox-close-btn svg,
  .lightbox-close-btn i {
    width: 18px;
    height: 18px;
    font-size: 18px;
  }

  /* 资讯详情页移动端适配 */
  .news-detail-section {
    padding-top: 20px;
    padding-bottom: 40px;
  }

  .news-detail-main {
    padding: 24px 16px;
    border-radius: 8px;
  }

  .news-article-title {
    font-size: 20px;
    line-height: 1.4;
    margin-bottom: 16px;
    word-break: break-word;
  }

  .news-article-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding-bottom: 14px;
    margin-bottom: 20px;
  }

  .news-meta-left {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .news-meta-tools {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: flex-start;
    gap: 8px;
    padding-top: 10px;
    border-top: 1px dashed var(--color-border-light);
  }

  .article-tool-btn {
    padding: 4px 10px;
    font-size: 12px;
  }

  .news-lead-quote {
    padding: 14px 16px;
    font-size: 14.5px;
    margin-bottom: 24px;
  }

  .news-article-body {
    font-size: 15px;
    line-height: 1.8;
  }

  .news-article-body h3 {
    font-size: 17px;
    margin: 24px 0 12px;
  }

  .news-article-img-box {
    margin: 20px 0;
  }

  .news-tech-callout {
    flex-direction: column;
    gap: 10px;
    padding: 14px 16px;
    margin: 20px 0;
  }

  .news-adjacent-nav {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 16px;
  }

  .news-adjacent-item.next {
    text-align: left;
  }

  .news-adjacent-item.next .adjacent-label {
    justify-content: flex-start;
  }

  .news-related-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .news-sidebar-card {
    padding: 22px 18px;
  }

  /* 发展历程时间轴手机移动端精细微调 */
  .milestones-timeline {
    margin-top: 40px;
  }

  .timeline-track {
    left: 16px;
  }

  .timeline-item,
  .timeline-item-left,
  .timeline-item-right {
    padding-left: 42px !important;
    margin-bottom: 22px;
  }

  .timeline-card,
  .timeline-item-left .timeline-card,
  .timeline-item-right .timeline-card {
    padding: 16px 18px;
  }

  .timeline-dot,
  .timeline-item-left .timeline-dot,
  .timeline-item-right .timeline-dot {
    left: 8px !important;
    top: 18px;
    width: 18px;
    height: 18px;
  }

  .timeline-year {
    font-size: 19px;
    margin-bottom: 4px;
  }

  .timeline-title {
    font-size: 15.5px;
    margin-bottom: 6px;
    line-height: 1.4;
  }

  .timeline-desc {
    font-size: 13px;
    line-height: 1.6;
  }

  /* 客户合作企业滚动走马灯移动端适配 */
  .clients-section {
    padding: 50px 0 60px;
  }

  .clients-marquee-wrapper::before,
  .clients-marquee-wrapper::after {
    width: 36px;
  }

  .marquee-row {
    padding: 4px 0;
    margin-bottom: 10px;
  }

  .client-logo-card {
    width: 140px;
    height: 56px;
    margin: 0 6px;
    padding: 8px 12px;
    border-radius: 6px;
  }

  .client-logo-img {
    max-width: 110px;
    max-height: 32px;
  }

  .track-left {
    animation-duration: 32s;
  }

  .track-right {
    animation-duration: 32s;
  }
}