/* ============================================================
   style.css - 与德海运  |  IMMENSE OCEAN
   完全复刻 immense-ocean.com 首页视觉风格
   ============================================================ */

/* ===== CSS Variables ===== */
:root {
  --primary: #004AAD;
  --primary-light: #059FE9;
  --orange: #F29A00;
  --dark: #222222;
  --gray: #555555;
  --light-gray: #999999;
  --white: #ffffff;
  --bg-light: #f5f5f5;
  --font-cn: 'Source Han Sans', 'Microsoft YaHei', 'Noto Sans SC', 'PingFang SC', sans-serif;
  --font-en: Arial, Helvetica, sans-serif;
  --container: 1200px;
  --nav-h: 80px;
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-cn);
  font-size: 14px;
  color: var(--dark);
  line-height: 1.6;
  min-width: 1200px;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
img { display: block; max-width: 100%; }
.container { width: var(--container); margin: 0 auto; position: relative; }

/* ================================================================
   1. NAVIGATION - 固定顶部80px，始终透明背景覆盖在轮播图上
   ================================================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 10000;
  background: transparent;
  transition: background-color 0.3s, box-shadow 0.3s;
}
.navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}
.nav-inner {
  width: var(--container);
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* --- Logo --- */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  text-decoration: none;
  height: var(--nav-h);
}
.logo-img {
  height: 48px;
  max-width: 420px;
  width: auto;
  object-fit: contain;
  display: block;
}

/* --- Nav Menu --- */
.nav-menu {
  display: flex;
  height: var(--nav-h);
  align-items: center;
  gap: 32px;
}
.nav-menu a {
  display: flex; align-items: center; justify-content: center;
  height: var(--nav-h);
  font-size: 14px;
  font-family: var(--font-cn);
  color: var(--dark);
  white-space: nowrap;
  transition: color 0.3s;
  text-decoration: none;
}
.navbar:not(.scrolled) .nav-menu a { color: #ffffff; }
.nav-menu a:hover { color: var(--orange); }
.nav-menu a.active { color: var(--orange); }

.lang-toggle {
  display: flex;
  align-items: center;
  gap: 4px;
  height: 28px;
  position: fixed;
  right: 18px;
  top: 92px;
  z-index: 10001;
  margin-left: 0;
  font-family: var(--font-en);
  font-size: 13px;
  color: var(--dark);
  background: rgba(255,255,255,0.92);
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: 14px;
  padding: 0 8px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.12);
  white-space: nowrap;
}
.navbar:not(.scrolled) .lang-toggle {
  color: var(--dark);
}
.lang-toggle button {
  border: 0;
  background: transparent;
  color: inherit;
  font-family: var(--font-en);
  font-size: 13px;
  cursor: pointer;
  padding: 2px 3px;
  opacity: 0.72;
  transition: color 0.2s, opacity 0.2s;
}
.lang-toggle button:hover,
.lang-toggle button.active {
  color: var(--orange);
  opacity: 1;
}

/* --- Mobile Nav --- */
.nav-mobile-btn {
  display: none;
  background: none; border: none;
  font-size: 28px; color: var(--dark);
  cursor: pointer;
}
.navbar:not(.scrolled) .nav-mobile-btn { color: #fff; }
.nav-mobile-menu {
  display: none;
  position: fixed; top: var(--nav-h); left: 0; right: 0;
  background: var(--white);
  box-shadow: 0 4px 10px rgba(0,0,0,0.15);
  z-index: 9999;
  flex-direction: column;
}
.nav-mobile-menu.open { display: flex; }
.nav-mobile-menu a {
  padding: 14px 20px;
  font-size: 16px; color: var(--dark);
  border-bottom: 1px solid #eee;
  text-align: center;
}
.nav-mobile-menu a:hover { color: var(--orange); }
.nav-mobile-menu a.active { color: var(--orange); }

/* ================================================================
   2. HERO CAROUSEL - 800px高，3张轮播图
   ================================================================ */
.hero-carousel {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 800px;
  overflow: hidden;
}
.hero-slide {
  position: absolute; top: 0; left: 0;
  width: 100%; height: 100%;
  opacity: 0;
  transition: opacity 1.2s ease;
  background-size: cover;
  background-position: center;
}
.hero-slide.active { opacity: 1; }

/* Dots */
.hero-dots {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex; gap: 10px;
  z-index: 100;
}
.hero-dot {
  width: 12px; height: 12px;
  border-radius: 50%;
  background: rgba(255,255,255,0.4);
  cursor: pointer;
  transition: background 0.3s;
  border: none;
}
.hero-dot.active { background: #ffffff; }

/* Left/Right arrows */
.hero-arrow {
  position: absolute;
  top: 50%; transform: translateY(-50%);
  z-index: 100;
  width: 50px; height: 80px;
  background: rgba(0,0,0,0.2);
  border: none;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.3s;
  opacity: 0;
}
.hero-carousel:hover .hero-arrow { opacity: 1; }
.hero-arrow:hover { background: rgba(0,0,0,0.5); }
.hero-arrow svg { width: 24px; height: 24px; stroke: #fff; fill: none; stroke-width: 2; }
.hero-arrow-left { left: 0; }
.hero-arrow-right { right: 0; }

/* ================================================================
   3. ABOUT SECTION - 500px高，白色背景，居中文字
   ================================================================ */
.about-section {
  position: relative;
  z-index: 1;
  height: 500px;
  background: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
}
.about-section-inner {
  text-align: center;
  max-width: 800px;
  padding: 0 40px;
}
.about-title {
  font-size: 36px;
  font-weight: 700;
  color: #555555;
  font-family: var(--font-cn);
  margin-bottom: 8px;
}
.about-title strong { font-weight: 700; }
.about-subtitle {
  font-size: 24px;
  color: #999999;
  font-family: var(--font-en);
  margin-bottom: 30px;
  font-weight: 400;
  letter-spacing: 2px;
}
.about-desc {
  font-size: 14px;
  color: #555555;
  line-height: 2;
  margin-bottom: 40px;
}

/* ================================================================
   4. FLEET STATS SECTION - 690px高，视差滚动效果
   ================================================================ */
.fleet-banner-section {
  position: relative;
  z-index: 1;
  height: 690px;
  overflow: hidden;
  background-size: cover;
  background-position: center;
}
.fleet-banner-overlay {
  position: absolute; top: 0; left: 0; right: 0; bottom: 0;
  background: transparent;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--white);
}
.fleet-banner-title {
  font-size: 36px;
  font-weight: 700;
  color: var(--white);
  text-align: center;
  margin-bottom: 50px;
  max-width: 700px;
  line-height: 1.5;
}
.fleet-stats-row {
  display: flex;
  gap: 60px;
  margin-bottom: 50px;
}
.fleet-stat-item {
  text-align: center;
}
.fleet-stat-item .stat-num {
  font-size: 48px;
  font-weight: 700;
  font-family: var(--font-en);
  color: var(--orange);
  line-height: 1;
}
.fleet-stat-item .stat-label {
  font-size: 14px;
  color: var(--white);
  margin-top: 10px;
  opacity: 0.9;
}
.fleet-banner-desc {
  font-size: 14px;
  color: #dddddd;
  text-align: center;
  max-width: 700px;
  line-height: 1.8;
  margin-bottom: 30px;
}

/* ================================================================
   5. ROUTE SECTION - 690px高，banner_Style3，右对齐
   ================================================================ */
.route-section {
  position: relative;
  height: 690px;
  overflow: hidden;
  background-image: url('../images/ship2.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}
.route-section-overlay {
  position: absolute; top: 0; left: 0; right: 0; bottom: 0;
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: flex-end;
}
.route-section-inner {
  max-width: 600px;
  margin-right: 80px;
  text-align: right;
  z-index: 1;
}
.route-section-inner h2 {
  font-size: 36px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 24px;
  line-height: 1.5;
}
.route-section-inner p {
  font-size: 14px;
  color: #dddddd;
  line-height: 1.8;
  margin-bottom: 30px;
}

/* ================================================================
   6. CARGO SECTION - 690px高，banner_Style1，右对齐大数字
   ================================================================ */
.cargo-section {
  position: relative;
  z-index: 1;
  height: 690px;
  overflow: hidden;
  background-size: cover;
  background-position: center;
}
.cargo-section-overlay {
  position: absolute; top: 0; left: 0; right: 0; bottom: 0;
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: flex-end;
}
.cargo-section-inner {
  max-width: 700px;
  margin-right: 80px;
  text-align: right;
  z-index: 1;
}
.cargo-section-inner .cargo-prefix {
  font-size: 24px;
  color: var(--white);
  margin-bottom: 10px;
  line-height: 1.5;
}
.cargo-section-inner .big-number {
  font-size: 100px;
  font-weight: 900;
  color: var(--orange);
  font-family: var(--font-en);
  line-height: 1;
  margin-bottom: 5px;
}
.cargo-section-inner .cargo-unit {
  font-size: 28px;
  color: var(--white);
  font-family: var(--font-en);
  margin-bottom: 20px;
  font-weight: 300;
}
.cargo-section-inner .cargo-desc {
  font-size: 14px;
  color: #dddddd;
  line-height: 1.8;
  margin-bottom: 30px;
}

/* ================================================================
   7. CONTACT CTA SECTION - 690px高，居中
   ================================================================ */
.cta-section {
  position: relative;
  z-index: 1;
  height: 690px;
  overflow: hidden;
  background-size: cover;
  background-position: center;
}
.cta-section-overlay {
  position: absolute; top: 0; left: 0; right: 0; bottom: 0;
  background: transparent;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 40px;
}
.cta-section-inner {
  text-align: center;
  z-index: 1;
  max-width: 800px;
}
.cta-section-inner h2 {
  font-size: 36px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
}
.cta-section-inner .cta-sub {
  font-size: 36px;
  font-weight: 400;
  color: var(--white);
  margin-bottom: 40px;
}

/* ================================================================
   8. PARTNER SECTION - 460px高，右对齐标题+logo滚动
   ================================================================ */
.partner-section {
  position: relative;
  z-index: 1;
  overflow: hidden;
}
/* 上半部分：背景图片 + 文字 */
.partner-image-area {
  position: relative;
  height: 300px;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
}
.partner-image-inner {
  width: var(--container);
  max-width: 100%;
  margin: 0 auto;
  padding: 0 50px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}
.partner-text-left {
  flex: 1;
  text-align: left;
}
.partner-text-left h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 16px;
}
.partner-text-left p {
  font-size: 14px;
  color: #dddddd;
  line-height: 1.8;
  max-width: 520px;
}
.partner-text-right {
  flex-shrink: 0;
}
.partner-big-num {
  font-size: 120px;
  font-weight: 700;
  color: var(--orange);
  line-height: 1;
}
.partner-plus {
  font-size: 80px;
  font-weight: 700;
  color: var(--orange);
}
/* 下半部分：白色背景 + logo循环 */
.partner-logo-area {
  background: var(--white);
  padding: 30px 0;
}
.partner-logos-wrapper {
  width: 100%;
  overflow: hidden;
  padding: 0 50px;
}
.partner-track {
  display: flex;
  align-items: center;
  gap: 20px;
  animation: partnerScroll 40s linear infinite;
  width: fit-content;
}
.partner-track:hover { animation-play-state: paused; }
.partner-track img {
  height: 80px;
  width: 160px;
  object-fit: contain;
  flex-shrink: 0;
  opacity: 1;
  transition: all 0.3s;
}
.partner-track img:hover {
  opacity: 1;
  transform: scale(1.08);
}

@keyframes partnerScroll {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ================================================================
   9. SLOGAN IMAGE - 口号图片 598x42
   ================================================================ */
.slogan-image-section {
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 30px 0;
}
.slogan-image-section img {
  height: 42px;
  width: auto;
}

/* Fallback text slogan if no image */
.slogan-text-fallback {
  font-size: 20px;
  color: var(--primary);
  letter-spacing: 6px;
  font-weight: 700;
  text-align: center;
  padding: 20px 0;
  background: var(--white);
}

/* ================================================================
   10. FOOTER - 紧凑深色背景
   ================================================================ */
/* .footer kept as alias for sub-pages */
.footer, .site-footer {
  position: relative;
  z-index: 1;
  background: #1a1a2e;
  color: #cccccc;
  padding: 30px 0 20px;
}
.footer-inner {
  width: var(--container);
  margin: 0 auto;
}
.footer-grid {
  display: flex;
  gap: 80px;
  margin-bottom: 40px;
}
.footer-col {
  flex: 1;
}
.footer-col h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 16px;
}
.footer-col p {
  font-size: 13px;
  line-height: 2;
  color: #cccccc;
}
.footer-col .flabel {
  font-weight: 600;
  color: #ffffff;
  display: inline-block;
  min-width: 56px;
}
.footer-slogan {
  text-align: center;
  font-size: 20px;
  color: #aaaaaa;
  letter-spacing: 4px;
  margin-bottom: 20px;
}
.footer-divider {
  border: none;
  border-top: 1px solid rgba(255,255,255,0.15);
  margin: 20px 0 16px;
}
.footer-copyright {
  text-align: center;
  font-size: 12px;
  color: #888888;
  line-height: 2;
}
.footer-copyright a {
  color: #888888;
  text-decoration: underline;
}

/* ================================================================
   11. BUTTONS
   ================================================================ */
.btn {
  display: inline-block;
  padding: 10px 30px;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.3s;
  border: 1px solid transparent;
  text-align: center;
  font-family: var(--font-cn);
  letter-spacing: 1px;
}
/* White outline button - for dark backgrounds */
.btn-white {
  border-color: var(--white);
  color: var(--white);
  background: transparent;
}
.btn-white:hover {
  background: var(--white);
  color: var(--dark);
}
/* Primary outline button - for light backgrounds */
.btn-primary-outline {
  border-color: var(--orange);
  color: var(--orange);
  background: transparent;
}
.btn-primary-outline:hover {
  background: var(--orange);
  color: var(--white);
}
/* Blue outline button */
.btn-outline {
  border-color: var(--primary);
  color: var(--primary);
  background: transparent;
}
.btn-outline:hover {
  background: var(--primary);
  color: #fff;
}
/* Solid primary */
.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn-primary:hover {
  background: #003d8f;
}

/* ================================================================
   12. LEFT SIDEBAR TOOLBAR
   ================================================================ */
.sidebar {
  position: fixed;
  left: 0; top: 50%;
  transform: translateY(-50%);
  z-index: 9990;
  display: flex; flex-direction: column;
  gap: 0;
}
.sidebar-item {
  position: relative;
  width: 61px;
  height: 61px;
}
.sidebar-btn {
  width: 61px; height: 61px;
  background: var(--primary);
  border: none; border-radius: 0;
  cursor: pointer;
  display: flex; align-items: center;
  justify-content: center;
  transition: all 0.3s;
  padding: 0;
}
.sidebar-btn:hover {
  background: var(--primary-light);
  transform: none;
}
.sidebar-btn svg {
  width: 30px; height: 30px;
  stroke: #fff; fill: none;
}
.sidebar-btn.phone svg,
.sidebar-btn.qr svg { fill: #fff; }
.sidebar-panel {
  position: absolute;
  left: 61px;
  top: 0;
  width: 200px;
  min-height: 71px;
  background: #ffffff;
  border: 1px solid #e6e6e6;
  box-shadow: 0 2px 8px rgba(0,0,0,0.12);
  padding: 12px 16px;
  opacity: 0;
  visibility: hidden;
  transform: translateX(-6px);
  transition: all 0.2s;
  pointer-events: none;
}
.sidebar-item:hover .sidebar-panel {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
  pointer-events: auto;
}
.sidebar-panel h3 {
  font-size: 16px;
  line-height: 1.5;
  color: #333333;
  font-weight: 700;
  margin: 0 0 8px;
}
.sidebar-panel p {
  font-size: 14px;
  line-height: 1.6;
  color: #666666;
  margin: 0;
}
.sidebar-panel-qr {
  top: -156px;
  height: 217px;
  text-align: center;
}
.sidebar-panel-qr img {
  width: 160px;
  height: 160px;
  object-fit: contain;
  display: block;
  margin: 0 auto;
}

/* ================================================================
   13. BACK TO TOP
   ================================================================ */
.back-to-top {
  position: fixed;
  right: 20px; bottom: 40px;
  width: 44px; height: 44px;
  background: var(--primary);
  border: none; border-radius: 4px;
  cursor: pointer;
  display: flex; align-items: center;
  justify-content: center;
  opacity: 0; visibility: hidden;
  transition: all 0.3s;
  z-index: 9990;
  padding: 10px;
}
.back-to-top.visible {
  opacity: 1; visibility: visible;
}
.back-to-top:hover {
  background: var(--primary-light);
  transform: scale(1.1);
}
.back-to-top svg {
  width: 22px; height: 22px;
  stroke: #fff; fill: none;
}

/* ================================================================
   14. COMPANY INFO SECTION (shared with sub-pages)
   ================================================================ */
.company-info-section {
  padding: 60px 0;
  background: #fff;
}
.company-info-section .container {
  width: 85%;
  max-width: 100%;
}
.company-info-grid {
  display: flex; gap: 60px;
  justify-content: center;
}
.company-info-card {
  text-align: left;
  flex: 1; max-width: 450px;
}
.company-info-card h3 {
  font-size: 20px; font-weight: 700;
  margin-bottom: 16px;
  color: var(--primary);
}
.company-info-card p {
  font-size: 14px; line-height: 1.8;
  margin-bottom: 4px;
  color: var(--gray);
}
.company-info-card .label {
  font-weight: 600;
  color: var(--dark);
}
.company-slogan {
  text-align: center;
  margin-top: 40px;
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 4px;
}

/* ================================================================
   15. PAGE BANNER (sub-pages)
   ================================================================ */
.page-banner {
  position: relative;
  height: auto;
  background-size: 85%;
  background-position: center center;
  background-repeat: no-repeat;
  background-color: #f5f5f5;
  overflow: hidden;
}
.page-banner::before {
  content: "";
  display: block;
  padding-top: 35%;
}
.page-banner .banner-overlay {
  position: absolute; top: 0; left: 0; right: 0; bottom: 0;
  background: transparent;
  display: flex; flex-direction: column;
  justify-content: center; align-items: center;
  color: #fff;
}
.page-banner h1 {
  font-size: 36px; font-weight: 700;
  margin-bottom: 8px;
}
.page-banner .en-sub {
  font-size: 18px;
  color: var(--orange);
  font-family: var(--font-en);
  text-transform: uppercase;
}

/* ----- Business banner: full-width cover, left-aligned title ----- */
.page-banner.business-banner {
  height: 234px;
  margin-top: 80px;
  background-size: 100% auto;
  background-position: center;
  background-repeat: no-repeat;
  background-color: transparent;
}
.page-banner.business-banner::before {
  display: none;
}
.page-banner.business-banner .banner-overlay {
  display: none;
}
.page-banner.business-banner h1 {
  font-size: 40px;
  line-height: 80px;
  text-align: left;
  margin-bottom: 0;
}
.page-banner.business-banner .en-sub {
  text-align: left;
  color: #ffffff;
  font-size: 18px;
  line-height: 36px;
  text-transform: none;
}

/* ----- Fleet banner: original image only ----- */
.page-banner.fleet-banner {
  height: 530px;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-color: transparent;
}
.page-banner.fleet-banner::before {
  display: none;
}
.page-banner.fleet-banner .banner-overlay {
  display: none;
}

/* ================================================================
   16. PAGE CONTENT (sub-pages)
   ================================================================ */
.page-content { padding-top: 0; }

/* ================================================================
   17. BREADCRUMB (sub-pages)
   ================================================================ */
.breadcrumb {
  padding: 16px 0;
  font-size: 14px;
  color: var(--gray);
  border-bottom: 1px solid #eee;
}
.breadcrumb a { color: var(--primary); }
.breadcrumb a:hover { color: var(--primary-light); }
.breadcrumb span { margin: 0 8px; color: var(--light-gray); }

/* ================================================================
   18. ABOUT PAGE - 图片文字交替排列
   ================================================================ */
.about-full-img {
  width: 100%;
}
.about-full-img img {
  width: 100%;
  height: auto;
  display: block;
}
.about-text-section {
  background: #f5f5f5;
  padding: 60px 0;
  text-align: center;
}
.about-text-section.short {
  padding: 50px 0;
}
.about-text-section .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}
.about-text-section h2 {
  font-size: 24px;
  font-weight: 400;
  margin-bottom: 20px;
  color: #333;
  text-align: justify;
}
.about-text-section p {
  font-size: 14px;
  line-height: 2;
  color: #666;
  text-align: justify;
  max-width: 100%;
  margin: 0;
}

/* ================================================================
   19. BUSINESS PAGE
   ================================================================ */
.business-grid {
  padding: 60px 0;
  background: var(--bg-light);
}
.business-grid h2 {
  text-align: center;
  font-size: 32px;
  margin-bottom: 12px;
}
.business-grid .grid-desc {
  text-align: center;
  color: var(--gray);
  margin-bottom: 40px;
}
.biz-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}
.biz-card {
  display: block;
  background: #fff;
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
  cursor: pointer;
  text-decoration: none;
}
.biz-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}
.biz-card img {
  width: 100%; height: 220px;
  object-fit: cover;
  display: block;
}
.biz-card-title {
  padding: 15px 0;
  font-size: 16px;
  font-weight: 500;
  color: #333;
  text-align: center;
}

/* ================================================================
   20. FLEET PAGE
   ================================================================ */
.fleet-grid {
  padding: 0 0 40px;
  background: #ffffff;
}
.fleet-grid h2 {
  text-align: center;
  font-size: 32px;
  margin-bottom: 12px;
}
.fleet-grid .grid-desc {
  text-align: center;
  color: var(--gray);
  margin-bottom: 40px;
}
.fleet-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.fleet-card {
  background: #fff;
  border-radius: 0;
  overflow: hidden;
  box-shadow: none;
  transition: transform 0.3s, box-shadow 0.3s;
  cursor: pointer;
}
.fleet-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 18px rgba(0,0,0,0.12);
}
.fleet-card img {
  width: 100%; height: 240px;
  object-fit: cover;
}
.fleet-card.harmony2-card img {
  object-position: center 50%;
}
.fleet-card .fleet-card-body {
  padding: 16px 10px 24px;
  text-align: center;
}
.fleet-card .fleet-card-body h3 {
  font-size: 18px; font-weight: 700;
  color: var(--dark);
  margin-bottom: 4px;
}
.fleet-card .fleet-card-body .dwcc {
  font-size: 14px; color: var(--gray);
  font-weight: 400;
  margin-bottom: 4px;
}
.fleet-card .fleet-card-body .box-type {
  font-size: 13px; color: var(--gray);
}

/* Fleet Overview */
.fleet-overview {
  padding: 72px 0 58px;
  background: #fff;
  text-align: left;
}
.fleet-overview h2 {
  font-size: 24px;
  font-weight: 400;
  color: #555555;
  margin-bottom: 18px;
}
.fleet-overview p {
  font-size: 14px;
  color: #555555;
  max-width: 800px;
  margin: 0 0 12px;
  line-height: 1.45;
}

/* ================================================================
   21. ADVANTAGES
   ================================================================ */
.advantages {
  padding: 60px 0;
  background: #fff;
}
.advantages h2 {
  text-align: center;
  font-size: 32px;
  margin-bottom: 12px;
}
.advantages .adv-desc {
  text-align: center;
  color: var(--gray);
  margin-bottom: 40px;
}
.adv-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}
.adv-item {
  text-align: center;
  padding: 30px 20px;
}
.adv-item .adv-icon {
  width: 60px; height: 60px;
  margin: 0 auto 16px;
  background: var(--primary);
  border-radius: 50%;
  display: flex; align-items: center;
  justify-content: center;
}
.adv-item .adv-icon svg {
  width: 28px; height: 28px;
  stroke: #fff; fill: none;
}
.adv-item h3 {
  font-size: 18px; font-weight: 700;
  margin-bottom: 8px;
}
.adv-item p {
  font-size: 13px; color: var(--gray);
  line-height: 1.6;
}

/* ================================================================
   22. DETAIL PAGE
   ================================================================ */
.detail-banner {
  width: 100%; height: 400px;
  object-fit: cover;
}
.detail-content {
  padding: 40px 0;
}
.detail-content h1 {
  font-size: 30px; font-weight: 700;
  color: var(--primary);
  margin-bottom: 20px;
}
.detail-content p {
  font-size: 15px; line-height: 2;
  color: var(--gray);
  margin-bottom: 16px;
  text-indent: 2em;
}
.detail-images {
  display: flex; flex-wrap: wrap;
  gap: 14px; margin: 20px 0;
  justify-content: center;
}
.detail-images img {
  max-width: 800px;
  width: 100%;
  border-radius: 4px;
}
.back-btn {
  display: inline-block;
  margin-top: 20px;
  padding: 10px 30px;
  border: 1px solid var(--primary);
  color: var(--primary);
  text-align: center;
  transition: all 0.3s;
  font-size: 14px;
}
.back-btn:hover {
  background: var(--primary);
  color: #fff;
}

/* ================================================================
   23. FLEET DETAIL PAGE
   ================================================================ */
.fleet-detail-top-img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  display: block;
  border-radius: 0;
}
.fleet-detail-layout {
  display: flex; gap: 40px;
  padding: 40px 0;
}
.fleet-detail-main { flex: 1; }
.fleet-detail-main img {
  width: 100%; height: 450px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
}
.fleet-detail-main .thumbnails {
  display: flex; gap: 10px;
}
.fleet-detail-main .thumbnails img {
  width: 80px; height: 60px;
  object-fit: cover; border-radius: 4px;
  cursor: pointer; opacity: 0.6;
  transition: opacity 0.3s;
}
.fleet-detail-main .thumbnails img:hover { opacity: 1; }
.fleet-detail-sidebar { width: 350px; }
.fleet-detail-sidebar h2 {
  font-size: 24px; font-weight: 700;
  margin-bottom: 20px;
  color: var(--dark);
}
.specs-table { width: 100%; border-collapse: collapse; }
.specs-table th, .specs-table td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid #eee;
  font-size: 14px;
}
.specs-table th {
  font-weight: 700;
  color: var(--primary);
  width: 120px;
  white-space: nowrap;
}
.specs-table td { color: var(--gray); }
.fleet-nav {
  display: flex; justify-content: space-between;
  margin-top: 30px;
}
.fleet-nav a {
  color: var(--primary);
  font-size: 14px;
  transition: color 0.3s;
}
.fleet-nav a:hover { color: var(--primary-light); }

/* ================================================================
   24. NEWS PAGE
   ================================================================ */
.news-list {
  padding: 60px 0;
}
.news-list h2 {
  text-align: center;
  font-size: 32px;
  margin-bottom: 12px;
}
.news-list .list-desc {
  text-align: center;
  color: var(--gray);
  margin-bottom: 40px;
}
.news-items { display: flex; flex-direction: column; gap: 30px; }
.news-item {
  display: flex; gap: 24px;
  padding: 20px;
  background: #fff;
  border: 1px solid #eee;
  border-radius: 8px;
  transition: box-shadow 0.3s;
  cursor: pointer;
}
.news-item:hover {
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}
.news-item img {
  width: 200px; height: 150px;
  object-fit: cover;
  border-radius: 4px;
  flex-shrink: 0;
}
.news-item .news-body { flex: 1; }
.news-item .news-body h3 {
  font-size: 18px; font-weight: 700;
  margin-bottom: 8px;
}
.news-item .news-body p {
  font-size: 14px; color: var(--gray);
  line-height: 1.6;
  margin-bottom: 8px;
}
.news-item .news-body .date {
  font-size: 12px;
  color: var(--light-gray);
}

/* ================================================================
   25. CONTACT PAGE
   ================================================================ */
.contact-info {
  padding: 60px 0;
}
.contact-info h2 {
  text-align: center;
  font-size: 32px;
  margin-bottom: 12px;
}
.contact-info .info-desc {
  text-align: center;
  color: var(--gray);
  margin-bottom: 40px;
}
.contact-methods {
  display: flex; gap: 30px;
  justify-content: center;
  margin-bottom: 60px;
}
.contact-method {
  text-align: center;
  padding: 30px;
  background: var(--bg-light);
  border-radius: 8px;
  flex: 1; max-width: 300px;
}
.contact-method .icon {
  width: 60px; height: 60px;
  margin: 0 auto 16px;
  background: var(--primary);
  border-radius: 50%;
  display: flex; align-items: center;
  justify-content: center;
}
.contact-method .icon svg {
  width: 28px; height: 28px;
  stroke: #fff; fill: none;
}
.contact-method h3 {
  font-size: 18px; font-weight: 700;
  margin-bottom: 8px;
}
.contact-method p {
  font-size: 14px; color: var(--gray);
}

/* 原站联系我们页样式 */
.page-banner.contact-original-banner {
  height: 530px;
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  background-color: transparent;
}
.page-banner.contact-original-banner::before {
  display: none;
}
.page-banner.contact-original-banner .banner-overlay {
  background: transparent;
  align-items: flex-start;
  justify-content: flex-start;
  padding-left: 92px;
  padding-top: 262px;
}
.page-banner.contact-original-banner h1 {
  font-size: 36px;
  font-weight: 700;
  line-height: 52px;
  margin: 0;
  color: #ffffff;
}
.page-banner.contact-original-banner .en-sub {
  font-size: 20px;
  line-height: 24px;
  color: #ffffff;
  text-transform: uppercase;
  font-family: var(--font-en);
}
.contact-tabs {
  background: #ffffff;
  min-width: 1200px;
}
.contact-tabs-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-left: 1px solid #e6e6e6;
  border-right: 1px solid #e6e6e6;
}
.contact-tab {
  height: 82px;
  line-height: 80px;
  text-align: center;
  font-size: 16px;
  color: #666666;
  background: #f5f7fa;
  border-top: 1px solid #e6e6e6;
  border-bottom: 1px solid #e6e6e6;
}
.contact-tab + .contact-tab {
  border-left: 1px solid #e6e6e6;
}
.contact-tab.active {
  color: #f08200;
  background: #ffffff;
}
.contact-original-form {
  padding: 126px 0 70px;
  background: #ffffff;
  min-width: 1200px;
}
.contact-original-form .container {
  width: 740px;
  max-width: 740px;
  padding-left: 0;
  padding-right: 0;
}
.contact-original-form h1 {
  font-size: 36px;
  line-height: 50px;
  color: #444444;
  font-weight: 700;
  text-align: center;
  margin: 0;
}
.contact-original-form .lead {
  font-size: 20px;
  line-height: 40px;
  color: #999999;
  text-align: center;
  margin: 0 0 68px;
}
.original-form-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 26px 72px;
}
.form-line {
  display: flex;
  flex-direction: column;
}
.form-line.full {
  width: 100%;
}
.form-line.half {
  width: calc((100% - 72px) / 2);
}
.form-line.third {
  width: calc((100% - 144px) / 3);
}
.form-line label {
  font-size: 16px;
  line-height: 34px;
  color: #333333;
  margin-bottom: 8px;
}
.form-line input {
  width: calc(100% - 22px);
  height: 34px;
  border: 0;
  border-bottom: 1px solid #d8d8d8;
  outline: none;
  font-size: 14px;
  color: #333333;
  background: transparent;
  padding: 0;
  margin-left: 11px;
  border-radius: 0;
}
.form-line input::placeholder {
  color: #999999;
}
.form-line .required {
  color: #ff0000;
}
.original-form-submit {
  text-align: center;
  margin-top: 38px;
}
.original-form-submit button {
  width: 110px;
  height: 38px;
  background: #f08200;
  color: #ffffff;
  border: 0;
  border-radius: 0;
  font-size: 14px;
  cursor: pointer;
}
.original-form-submit button:hover {
  background: #d97300;
}

/* Contact Form */
.contact-form {
  padding: 60px 0;
  background: var(--bg-light);
}
.contact-form h2 {
  text-align: center;
  font-size: 32px;
  margin-bottom: 12px;
}
.contact-form .form-desc {
  text-align: center;
  color: var(--gray);
  margin-bottom: 40px;
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  max-width: 800px;
  margin: 0 auto;
}
.form-group {
  display: flex; flex-direction: column;
}
.form-group.full { grid-column: 1 / -1; }
.form-group label {
  font-size: 14px; font-weight: 600;
  margin-bottom: 6px;
  color: var(--dark);
}
.form-group label .required { color: #e74c3c; }
.form-group input,
.form-group textarea {
  padding: 10px 14px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 14px;
  font-family: var(--font-cn);
  transition: border-color 0.3s;
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
}
.form-group textarea {
  min-height: 100px;
  resize: vertical;
}
.form-submit {
  text-align: center;
  margin-top: 30px;
}
.form-submit button {
  padding: 12px 50px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 4px;
  font-size: 16px;
  cursor: pointer;
  transition: background 0.3s;
  font-family: var(--font-cn);
}
.form-submit button:hover {
  background: #003d8f;
}

/* ================================================================
   27. RESPONSIVE
   ================================================================ */
@media (max-width: 1024px) {
  body { min-width: auto; }
  .container { width: 100%; padding: 0 20px; }
  .nav-inner { width: 100%; padding: 0 20px; }
  .nav-menu a { padding: 0 12px; font-size: 14px; }
  .nav-mobile-btn { display: none; }
  .nav-mobile-menu { display: none; }

  /* Home sections */
  .hero-carousel { height: 500px; }
  .about-section { height: auto; padding: 60px 0; }
  .fleet-banner-section { height: auto; min-height: 500px; }
  .fleet-banner-overlay { padding: 60px 20px; }
  .fleet-stats-row { flex-wrap: wrap; gap: 30px; justify-content: center; }
  .route-section { height: auto; min-height: 500px; }
  .route-section-overlay { padding: 60px 20px; }
  .route-section-inner { margin-right: 0; text-align: center; max-width: 100%; }
  .cargo-section { height: auto; min-height: 500px; }
  .cargo-section-overlay { padding: 60px 20px; }
  .cargo-section-inner { margin-right: 0; text-align: center; max-width: 100%; }
  .cta-section { height: auto; min-height: 400px; }
  .cta-section-overlay { padding: 60px 20px; }
  .partner-image-area { height: auto; min-height: 250px; }
  .partner-image-inner { padding: 40px 20px; }
  .partner-text-left { text-align: center; }
  .partner-text-left p { margin: 0 auto; }
  .partner-big-num { font-size: 80px; }
  .partner-plus { font-size: 60px; }
  .partner-logo-area { padding: 20px 0; }
  .partner-logos-wrapper { padding: 0; }
  .footer-grid { flex-direction: column; gap: 40px; }

  /* Sub-pages */
  .biz-cards { grid-template-columns: repeat(2, 1fr); }
  .fleet-cards { grid-template-columns: repeat(2, 1fr); }
  .adv-grid { grid-template-columns: repeat(2, 1fr); }
  .fleet-detail-layout { flex-direction: column; }
  .fleet-detail-sidebar { width: 100%; }
  .form-grid { grid-template-columns: 1fr; }
  .contact-methods { flex-direction: column; }
  .contact-method { max-width: none; }
  .company-info-grid { flex-direction: column; }
  .company-info-card { max-width: none; }
  .sidebar { left: 8px; }
}
@media (max-width: 768px) {
  .nav-menu { display: none; }
  .nav-mobile-btn { display: block; }
  .nav-mobile-menu.open { display: flex; }
  .logo-img { height: 36px; max-width: 280px; }
  .hero-carousel { height: 400px; }
  .hero-arrow { width: 36px; height: 60px; }
  .fleet-banner-title { font-size: 24px; }
  .route-section-inner h2 { font-size: 24px; }
  .cargo-section-inner .big-number { font-size: 60px; }
  .cargo-section-inner .cargo-prefix { font-size: 18px; }
  .cta-section-inner h2 { font-size: 24px; }
  .cta-section-inner .cta-sub { font-size: 24px; }
  .partner-text-left h2 { font-size: 24px; }
  .partner-image-inner { flex-direction: column; gap: 20px; }

  .biz-cards { grid-template-columns: 1fr; }
  .fleet-cards { grid-template-columns: 1fr; }
  .adv-grid { grid-template-columns: 1fr; }
  .news-item { flex-direction: column; }
  .news-item img { width: 100%; height: 200px; }
  .partner-logos-wrapper { width: 100%; }
  .back-to-top { right: 10px; bottom: 20px; }
}