:root {
  --primary: #1a6dff;
  --primary-dark: #0e56d6;
  --dark: #1c2b3a;
  --text: #333;
  --text-light: #777;
  --bg-light: #f5f7fa;
  --border: #e8ecf1;
  --radius: 8px;
  --shadow: 0 6px 24px rgba(28, 43, 58, .08);
  --shadow-hover: 0 12px 32px rgba(26, 109, 255, .18);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  color: var(--text); background: #fff; line-height: 1.7; font-size: 15px;
}
a { text-decoration: none; color: inherit; transition: color .25s; }
ul { list-style: none; }
img { display: block; max-width: 100%; }
.container { width: 1400px; max-width: 94%; margin: 0 auto; }

/* ---------- 顶部导航 ---------- */
.topbar { background: var(--dark); color: #9fb0c0; font-size: 12px; }
.topbar .container { display: flex; justify-content: space-between; align-items: center; height: 34px; }
.topbar a:hover { color: #fff; }
.header { position: sticky; top: 0; z-index: 999; background: #fff; box-shadow: 0 2px 12px rgba(0,0,0,.06); }
.header .container { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.logo { display: flex; align-items: center; gap: 10px; }
.logo-mark { width: 44px; height: 44px; flex-shrink: 0; }
.logo-text strong { display: block; font-size: 21px; color: var(--dark); letter-spacing: 1px; line-height: 1.2; }
.logo-text span { font-size: 10px; color: #9aa7b5; letter-spacing: .5px; text-transform: uppercase; }
.logo img{ max-height: 70px;}
.nav { display: flex; gap: 6px; }
.nav a { display: block; padding: 8px 18px; font-size: 16px; color: var(--dark); position: relative; }
.nav a:hover, .nav a.active { color: var(--primary); }
.nav a.active::after { content: ""; position: absolute; left: 18px; right: 18px; bottom: 0; height: 3px; border-radius: 3px; background: var(--primary); }
.header-phone { display: flex; align-items: center; gap: 8px; color: var(--dark); font-size: 17px; font-weight: 700; }
.header-phone .ico { width: 38px; height: 38px; border-radius: 50%; background: rgba(26,109,255,.08); display: flex; align-items: center; justify-content: center; font-size: 17px; }
.header-phone small { display: block; font-size: 11px; font-weight: 400; color: var(--text-light); line-height: 1.3; }
.nav-toggle { display: none; background: none; border: none; font-size: 26px; color: var(--dark); cursor: pointer; }

/* ---------- Hero 轮播（Swiper） ---------- */
.hero { position: relative; height: 620px; overflow: hidden; }
.hero .swiper, .hero .swiper-wrapper { height: 100%; }
.hero .swiper-slide { position: relative; }
.hero .swiper-slide > img { width: 100%; height: 100%; object-fit: cover; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(10,30,60,.55), rgba(10,30,60,0) 60%); z-index: 1; }
.hero-content { position: absolute; inset: 0; z-index: 2; display: flex; flex-direction: column; justify-content: center; }
.hero-content h1 { color: #fff; font-size: 46px; letter-spacing: 2px; text-shadow: 0 2px 12px rgba(0,0,0,.3); }
.hero-content p { color: rgba(255,255,255,.9); font-size: 18px; margin-top: 14px; letter-spacing: 4px; }
.hero .swiper-pagination-bullet { width: 26px; height: 5px; border-radius: 4px; background: rgba(255,255,255,.5); opacity: 1; transition: .3s; }
.hero .swiper-pagination-bullet-active { background: #fff; width: 40px; }
.hero .swiper-button-next, .hero .swiper-button-prev { width: 46px; height: 46px; border-radius: 50%; background: rgba(255,255,255,.18); color: #fff; transition: .25s; }
.hero .swiper-button-next:hover, .hero .swiper-button-prev:hover { background: var(--primary); }
.hero .swiper-button-next::after, .hero .swiper-button-prev::after { font-size: 18px; }

/* ---------- 内页横幅 ---------- */
.page-hero { position: relative; height: 260px; overflow: hidden; display: flex; align-items: center; }
.page-hero img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.page-hero::after { content: ""; position: absolute; inset: 0; background: rgba(15,35,65,.55); }
.page-hero .container { position: relative; z-index: 2; }
.page-hero h1 { color: #fff; font-size: 34px; letter-spacing: 2px; }
.page-hero .en { color: rgba(255,255,255,.6); font-size: 13px; letter-spacing: 3px; text-transform: uppercase; }
.breadcrumb { background: var(--bg-light); border-bottom: 1px solid var(--border); font-size: 13px; color: var(--text-light); }
.breadcrumb .container { display: flex; align-items: center; height: 46px; gap: 6px; }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: #c2ccd6; }

/* ---------- 区块通用 ---------- */
.section { padding: 70px 0; }
.section.gray { background: var(--bg-light); }
.sec-head { text-align: center; margin-bottom: 44px; }
.sec-head .tag { display: inline-block; font-size: 12px; color: var(--primary); letter-spacing: 2px; text-transform: uppercase; border: 1px solid rgba(26,109,255,.35); border-radius: 20px; padding: 2px 16px; margin-bottom: 12px; }
.sec-head h2 { font-size: 30px; color: var(--dark); letter-spacing: 1px; }
.sec-head p { color: var(--text-light); font-size: 14px; margin-top: 8px; }
.sec-head::after { content: ""; display: block; width: 46px; height: 4px; border-radius: 3px; background: var(--primary); margin: 16px auto 0; }
.sec-head.left { text-align: left; }
.sec-head.left::after { margin-left: 0; }
.more-btn { display: inline-block; background: var(--primary); color: #fff; font-size: 14px; padding: 9px 34px; border-radius: 22px; transition: .25s; }
.more-btn:hover { background: var(--primary-dark); box-shadow: var(--shadow-hover); }
.more-btn.ghost { background: transparent; color: var(--primary); border: 1px solid var(--primary); }
.more-btn.ghost:hover { background: var(--primary); color: #fff; }

/* ---------- 服务中心卡片 ---------- */
.svc-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.svc-card { background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); transition: .3s; display: flex; flex-direction: column; }
.svc-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.svc-card .thumb { height: 245px; overflow: hidden; }
.svc-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.svc-card:hover .thumb img { transform: scale(1.08); }
.svc-card .body { padding: 20px 20px 24px; text-align: center; flex: 1; display: flex; flex-direction: column; }
.svc-card h3 { font-size: 18px; color: var(--dark); margin-bottom: 8px; }
.svc-card h3 a:hover { color: var(--primary); }
.svc-card p { font-size: 13px; color: var(--text-light); flex: 1; }
.svc-card .link { margin-top: 14px; font-size: 13px; color: var(--primary); }

/* ---------- 运输方式网格 ---------- */
.trans-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.trans-item { position: relative; height: 265px; border-radius: var(--radius); overflow: hidden; display: block; }
.trans-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.trans-item:hover img { transform: scale(1.08); }
.trans-item .cap { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(10,25,50,0) 40%, rgba(10,25,50,.75)); display: flex; align-items: flex-end; padding: 16px; }
.trans-item .cap b { color: #fff; font-size: 18px; font-weight: 500; letter-spacing: 1px; }
.trans-item.wide { grid-column: span 2; }

/* ---------- 关于我们 ---------- */
.about-wrap { display: grid; grid-template-columns: 1.1fr 1fr; gap: 50px; align-items: center; }
.about-wrap .pic { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.about-wrap .pic img { width: 100%; height: 360px; object-fit: cover; }
.about-text h2 { font-size: 28px; color: var(--dark); margin-bottom: 18px; }
.about-text h2 em { font-style: normal; color: var(--primary); }
.about-text p { color: var(--text-light); font-size: 14px; margin-bottom: 12px; text-align: justify; }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 40px; }
.stat { text-align: center; background: #fff; border-radius: var(--radius); padding: 18px 8px; box-shadow: var(--shadow); }
.stat b span{ font-size: 30px; color: var(--primary); font-family: Arial, sans-serif; }
.stat b i { font-style: normal; font-size: 15px; margin-left: 2px; }
.stat span.text{ display:block; font-size: 14px; color: var(--text-light); }

/* ---------- 合作伙伴（无缝滚动） ---------- */
.partner-scroll { overflow: hidden; position: relative; -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.partner-track { display: flex; width: max-content; animation: marquee 28s linear infinite; }
.partner-scroll:hover .partner-track { animation-play-state: paused; }
.partner-group { display: flex; gap: 18px; padding-right: 18px; }
.partner { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); width: 200px; height: 88px; display: flex; align-items: center; justify-content: center; font-size: 18px; font-weight: 700; color: #8b98a7; letter-spacing: 1px; transition: .3s; flex-shrink: 0; }
.partner:hover { color: var(--primary); border-color: var(--primary); box-shadow: var(--shadow-hover); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- 新闻列表（首页） ---------- */
.news-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.news-item { display: flex; gap: 18px; background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); transition: .3s; }
.news-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.news-item .thumb { width: 240px; height: 160px; flex-shrink: 0; overflow: hidden; }
.news-item .thumb img { width: 100%; height: 100%; object-fit: cover; }
.news-item .body { padding: 16px 18px 14px 0; display: flex; flex-direction: column; }
.news-item h3 { font-size: 16px; color: var(--dark); line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-item h3 a:hover { color: var(--primary); }
.news-item p { font-size: 13px; color: var(--text-light); margin-top: 6px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; flex: 1; }
.news-item .meta { font-size: 12px; color: #a5b1bd; margin-top: 8px; }

/* ---------- 页脚 ---------- */
.footer { background: var(--dark); color: #8fa2b5; padding: 60px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; padding-bottom: 44px; }
.footer h3 { color: #fff; font-size: 19px; margin-bottom: 24px; letter-spacing: 1px; }
.footer h3 span { font-size: 11px; color: #5d7185; margin-left: 8px; letter-spacing: 2px; text-transform: uppercase; }
.f-contact li { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; font-size: 14px; line-height: 1.7; }
.f-contact .ico { width: 36px; height: 36px; border-radius: 50%; background: rgba(255,255,255,.07); display: flex; align-items: center; justify-content: center; flex-shrink: 0; font-size: 15px; }
.f-form .row { display: flex; gap: 14px; margin-bottom: 14px; }
.f-form input, .f-form textarea { width: 100%; background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.12); border-radius: 6px; padding: 11px 14px; color: #fff; font-size: 13px; font-family: inherit; outline: none; transition: .25s; }
.f-form input::placeholder, .f-form textarea::placeholder { color: #5d7185; }
.f-form input:focus, .f-form textarea:focus { border-color: var(--primary); background: rgba(255,255,255,.1); }
.f-form textarea { height: 90px; resize: none; }
.f-form button { width: 100%; background: var(--primary); margin-top:5px; color: #fff; border: none; border-radius: 6px; padding: 12px; font-size: 15px; cursor: pointer; letter-spacing: 6px; transition: .25s; }
.f-form button:hover { background: var(--primary-dark); }
.copyright { border-top: 1px solid rgba(255,255,255,.08); padding: 18px 0; text-align: center; font-size: 12px; color: #5d7185; }

/* ---------- 服务/产品列表页（图文交错版式） ---------- */
.prod-band { padding: 0; }
.prod-band .inner { padding: 64px 0; }
.prod-band:nth-of-type(even) { background: var(--bg-light); }
.prod-row { display: flex; align-items: center; gap: 54px; }
.prod-band:nth-of-type(even) .prod-row { flex-direction: row-reverse; }
.prod-row .pic { flex: 0 0 46%; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.prod-row .pic img { width: 100%; height: 360px; object-fit: cover; transition: transform .5s; }
.prod-row:hover .pic img { transform: scale(1.05); }
.prod-row .txt { flex: 1; }
.prod-row .txt .no { display: inline-block; font-size: 12px; color: var(--primary); letter-spacing: 2px; border: 1px solid rgba(26,109,255,.35); border-radius: 20px; padding: 1px 14px; margin-bottom: 12px; }
.prod-row .txt h3 { font-size: 24px; color: var(--dark); margin-bottom: 14px; letter-spacing: 1px; }
.prod-row .txt p { color: var(--text-light); font-size: 14.5px; text-align: justify; }
.prod-row .txt .link { display: inline-block; margin-top: 18px; font-size: 14px; color: var(--primary); font-weight: 600; }

/* ---------- 详情页 ---------- */
.detail-layout { display: grid; grid-template-columns: 290px 1fr; gap: 36px; align-items: start; }
.side-box { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; }
.side-box .hd { background: var(--primary); color: #fff; padding: 14px 20px; font-size: 17px; letter-spacing: 1px; }
.side-box ul { padding: 8px 0; }
.side-box li a { display: flex; justify-content: space-between; align-items: center; padding: 12px 20px; font-size: 14px; color: #4a5a6a; border-left: 3px solid transparent; }
.side-box li a:hover, .side-box li a.on { color: var(--primary); border-left-color: var(--primary); background: rgba(26,109,255,.05); }
.side-box li a .arr { color: #c2ccd6; font-size: 12px; }
.side-contact { background: var(--dark); color: #cbd6e0; padding: 22px 20px; margin-top: 22px; border-radius: var(--radius); font-size: 13px; }
.side-contact b { display: block; color: #fff; font-size: 16px; margin-bottom: 8px; }
.detail-main { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 36px 40px; }
.detail-main h1 { font-size: 25px; color: var(--dark); line-height: 1.5; }
.detail-meta { display: flex; gap: 22px; font-size: 13px; color: #9aa7b5; padding: 14px 0 20px; border-bottom: 1px solid var(--border); margin-bottom: 24px; }
.detail-cover { width: 100%; height: 340px; object-fit: cover; border-radius: var(--radius); margin-bottom: 26px; }
.detail-main h2 { font-size: 19px; color: var(--dark); margin: 26px 0 12px; padding-left: 12px; border-left: 4px solid var(--primary); }
.detail-main p { color: var(--text-light); font-size: 14.5px; margin-bottom: 12px; text-align: justify; }
.detail-main ul.dots { margin: 0 0 14px 4px; }
.detail-main ul.dots li { position: relative; padding-left: 18px; color: var(--text-light); font-size: 14.5px; margin-bottom: 8px; }
.detail-main ul.dots li::before { content: ""; position: absolute; left: 0; top: 10px; width: 7px; height: 7px; border-radius: 50%; background: var(--primary); }
.page-nav { display: flex; justify-content: space-between; gap: 20px; margin-top: 34px; padding-top: 22px; border-top: 1px solid var(--border); font-size: 14px; }
.page-nav a { color: var(--text-light); max-width: 46%; }
.page-nav a:hover { color: var(--primary); }

/* ---------- 新闻列表页 ---------- */
.news-tabs { background: #fff; border-bottom: 1px solid var(--border); }
.news-tabs .container { display: flex; align-items: center; justify-content: space-between; height: 54px; }
.news-tabs .tabs { display: flex; gap: 10px; height: 100%; }
.news-tabs .tabs a { display: flex; align-items: center; padding: 0 28px; font-size: 15px; color: var(--text); position: relative; height: 100%; cursor: pointer; }
.news-tabs .tabs a:hover { color: var(--primary); }
.news-tabs .tabs a.on { color: var(--primary); }
.news-tabs .tabs a.on::after { content: ""; position: absolute; left: 22px; right: 22px; bottom: 0; height: 3px; border-radius: 2px; background: var(--primary); }
.news-tabs .crumb { font-size: 13px; color: var(--text-light); }
.news-tabs .crumb a:hover { color: var(--primary); }
.news-wrap { background: var(--bg-light); }
.news-layout { display: grid; grid-template-columns: 1fr 360px; gap: 30px; align-items: start; padding: 46px 0 70px; }
.ncard { display: flex; gap: 24px; background: #fff; border: 1px solid var(--border); padding: 18px; margin-bottom: 24px; transition: .3s; }
.ncard:hover { box-shadow: var(--shadow-hover); border-color: transparent; }
.ncard .thumb { width: 200px; height: 126px; flex-shrink: 0; overflow: hidden; }
.ncard .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.ncard:hover .thumb img { transform: scale(1.06); }
.ncard .body { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.ncard h3 { font-size: 17px; color: var(--dark); line-height: 1.5; }
.ncard h3 a:hover { color: var(--primary); }
.ncard .date { font-size: 13px; color: #9aa7b5; margin: 7px 0; }
.ncard p { font-size: 13.5px; color: var(--text-light); line-height: 1.8; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.hot-box { background: #fff; border: 1px solid var(--border); position: sticky; top: 96px; }
.hot-box .hd { display: flex; align-items: center; justify-content: center; gap: 16px; padding: 24px 0 20px; font-size: 22px; font-weight: 700; color: var(--primary); letter-spacing: 2px; }
.hot-box .hd::before, .hot-box .hd::after { content: ""; width: 52px; height: 3px; background: #e04747; }
.hot-box ul { padding: 2px 26px 26px; }
.hot-box li { padding: 15px 0; border-bottom: 1px dashed var(--border); }
.hot-box li:last-child { border-bottom: none; }
.hot-box li a { font-size: 14px; color: var(--dark); line-height: 1.6; display: block; }
.hot-box li a:hover { color: var(--primary); }
.hot-box li .date { font-size: 12px; color: #9aa7b5; margin-top: 5px; display: block; }
/* 分页 */
.news-pager { display: flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 0 4px; flex-wrap: wrap; }
.pg-info { font-size: 13px; color: var(--text-light); margin-right: 14px; }
.news-pager a { min-width: 42px; height: 42px; padding: 0 16px; display: flex; align-items: center; justify-content: center; background: #fff; border: 1px solid var(--border); border-radius: 6px; font-size: 14px; color: var(--text); cursor: pointer; transition: .25s; user-select: none; }
.news-pager a:hover { border-color: var(--primary); color: var(--primary); }
.news-pager a.page-num-current { background: var(--primary); border-color: var(--primary); color: #fff; font-weight: 600; }
.news-pager a.disabled { color: #c2ccd6; background: #fafbfc; cursor: not-allowed; }
.news-pager a.disabled:hover { border-color: var(--border); color: #c2ccd6; }
@media (max-width: 640px) {
  .pg-info { width: 100%; text-align: center; margin: 0 0 6px; }
  .pg-btn { min-width: 36px; height: 36px; padding: 0 10px; font-size: 13px; }
}

/* ---------- 联系页 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.contact-card { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 30px; }
.contact-card h3 { font-size: 19px; color: var(--dark); margin-bottom: 20px; padding-left: 12px; border-left: 4px solid var(--primary); }
.c-info li { display: flex; gap: 14px; margin-bottom: 20px; }
.c-info .ico { width: 44px; height: 44px; border-radius: 10px; background: rgba(26,109,255,.08); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 18px; flex-shrink: 0; }
.c-info b { display: block; font-size: 15px; color: var(--dark); }
.c-info p { font-size: 13.5px; color: var(--text-light); }
.map-box { margin-top: 30px; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); height: 320px; background: linear-gradient(135deg, #e8effa, #f5f7fa); position: relative; display: flex; align-items: center; justify-content: center; }
.map-box .pin { text-align: center; }
.map-box .pin i { display: inline-block; width: 52px; height: 52px; border-radius: 50% 50% 50% 0; background: var(--primary); transform: rotate(-45deg); margin-bottom: 18px; box-shadow: 0 8px 20px rgba(26,109,255,.4); position: relative; }
.map-box .pin i::after { content: ""; position: absolute; inset: 17px; border-radius: 50%; background: #fff; }
.map-box .pin p { font-size: 14px; color: var(--text-light); }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .svc-grid, .trans-grid { grid-template-columns: repeat(2, 1fr); }
  .news-layout { grid-template-columns: 1fr; }
  .hot-box { position: static; }
  .partner { width: 170px; }
  .about-wrap, .detail-layout, .contact-grid, .footer-grid { grid-template-columns: 1fr; }
  .header-phone { display: none; }
  .nav { position: absolute; top: 76px; left: 0; right: 0; background: #fff; flex-direction: column; padding: 10px 0; box-shadow: 0 10px 20px rgba(0,0,0,.08); display: none; }
  .nav.open { display: flex; }
  .nav a.active::after { display: none; }
  .nav a.active { background: rgba(26,109,255,.06); }
  .nav-toggle { display: block; }
  .hero { height: 380px; }
  .hero-content h1 { font-size: 30px; }
}
@media (max-width: 640px) {
  .svc-grid, .trans-grid, .news-grid, .stats { grid-template-columns: 1fr; }
  .trans-item.wide { grid-column: span 1; }
  .prod-row { flex-direction: column !important; gap: 24px; }
  .prod-row .pic { flex: none; width: 100%; }
  .prod-row .pic img { height: 220px; }
  .trans-item, .trans-item.wide { height: 200px; }
  .svc-card .thumb { height: 200px; }
  .news-item { flex-direction: column; }
  .news-item .thumb { width: 100%; height: 180px; }
  .news-item .body { padding: 0 18px 18px; }
  .ncard { flex-direction: column; }
  .ncard .thumb { width: 100%; height: 190px; }
  .detail-main { padding: 24px 20px; }
  .footer .row { flex-direction: column; }
}