/* ==========================================================================
   集运管家 · 集运系统 — 易仓蓝 · mega菜单 + 产品矩阵风格
   深圳塔灯网络科技有限公司
   ========================================================================== */

:root {
  --primary: #0d9488;
  --primary-dark: #0f766e;
  --primary-light: #2dd4bf;
  --cyan: #06b6d4;
  --blue-soft: #f0fdfa;
  --blue-tint: #f7fefc;
  --ink: #14201f;
  --muted: #5c6a7a;
  --line: #e4ebf4;
  --bg: #ffffff;
  --bg-soft: #f2fbf9;
  --radius: 16px;
  --radius-sm: 12px;
  --shadow-sm: 0 2px 12px rgba(13,148,136,.06);
  --shadow: 0 18px 46px rgba(13,148,136,.13);
  --shadow-lg: 0 30px 70px rgba(13,148,136,.17);
  --maxw: 1180px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: "PingFang SC","Microsoft YaHei","Helvetica Neue",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif; color: var(--ink); background: var(--bg); line-height: 1.75; font-size: 15px; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* 顶部条 */
.topbar { background: var(--primary-dark); color: #ccfbf1; font-size: 13px; }
.topbar-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 38px; flex-wrap: wrap; }
.topbar-left { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
.topbar-left a { color: #fff; font-weight: 600; }
.topbar-left a:hover { color: #5eead4; }
.topbar-right { display: flex; gap: 16px; align-items: center; }
.topbar-right a { color: #ccfbf1; }
.topbar-right a:hover { color: #fff; }

/* 头部导航 */
.site-header { position: sticky; top: 0; z-index: 220; background: rgba(255,255,255,.98); box-shadow: 0 1px 0 var(--line); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 66px; gap: 20px; }
.brand { display: flex; align-items: center; gap: 10px; font-size: 22px; font-weight: 800; color: var(--primary); letter-spacing: -.5px; }
.brand .logo-mark { width: 38px; height: 38px; border-radius: 10px; flex: none; background: linear-gradient(135deg, var(--primary), var(--cyan)); color: #fff; display: grid; place-items: center; font-size: 18px; font-weight: 800; box-shadow: 0 6px 16px rgba(13,148,136,.3); }
.brand em { font-style: normal; color: var(--cyan); }
.main-nav > ul { display: flex; align-items: center; gap: 2px; }
.main-nav > ul > li { position: relative; }
.main-nav > ul > li > a { display: flex; align-items: center; gap: 5px; padding: 10px 14px; border-radius: 8px; font-size: 15px; font-weight: 600; color: var(--ink); transition: color .2s, background .2s; }
.main-nav > ul > li > a i { font-style: normal; font-size: 10px; opacity: .6; transition: transform .2s; }
.main-nav > ul > li > a:hover, .main-nav > ul > li > a.active { color: var(--primary); background: var(--blue-soft); }
.main-nav > ul > li.has-dropdown:hover > a i { transform: rotate(180deg); }

/* mega 下拉 */
.dropdown { position: absolute; top: 100%; left: 0; width: 560px; background: #fff; border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow-lg); padding: 16px; opacity: 0; visibility: hidden; transform: translateY(10px); transition: all .22s ease; z-index: 120; display: grid; grid-template-columns: repeat(2, 1fr); gap: 4px; }
.main-nav li.has-dropdown:hover .dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown a { display: flex; align-items: center; gap: 12px; padding: 12px 14px; border-radius: 10px; transition: background .2s; }
.dropdown a:hover { background: var(--blue-tint); }
.dropdown a .ic { width: 38px; height: 38px; border-radius: 10px; background: var(--blue-soft); color: var(--primary); display: grid; place-items: center; font-size: 18px; flex: none; }
.dropdown a b { display: block; font-size: 14px; color: var(--ink); }
.dropdown a span { display: block; font-size: 12px; color: var(--muted); }

.header-right { display: flex; align-items: center; gap: 16px; }
.header-phone { display: flex; align-items: center; gap: 8px; color: var(--ink); font-weight: 700; font-size: 15px; }
.header-phone svg { width: 20px; height: 20px; stroke: var(--primary); }
.header-cta { background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: #fff; padding: 10px 22px; border-radius: 99px; font-weight: 700; font-size: 14px; white-space: nowrap; box-shadow: 0 8px 20px rgba(13,148,136,.3); transition: transform .2s; }
.header-cta:hover { transform: translateY(-2px); }
.nav-toggle { display: none; background: none; border: none; font-size: 26px; color: var(--primary); cursor: pointer; }

/* 按钮 */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 14px 30px; border-radius: 99px; font-size: 15px; font-weight: 700; cursor: pointer; border: none; transition: transform .2s, box-shadow .2s; }
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: #fff; box-shadow: 0 12px 28px rgba(13,148,136,.32); }
.btn-primary:hover { transform: translateY(-2px); }
.btn-ghost { background: rgba(255,255,255,.14); color: #fff; border: 1.5px solid rgba(255,255,255,.45); }
.btn-ghost:hover { background: rgba(255,255,255,.24); }
.btn-lg { padding: 17px 40px; font-size: 16px; }
.btn-block { width: 100%; }

/* Hero */
.hero { position: relative; overflow: hidden; color: #fff; background: radial-gradient(900px 500px at 85% -10%, rgba(6,182,212,.26) 0%, transparent 55%), linear-gradient(135deg, #0f766e 0%, #0d9488 55%, #2dd4bf 100%); padding: 96px 0 84px; }
.hero::before { content: ""; position: absolute; inset: 0; background-image: radial-gradient(rgba(255,255,255,.07) 1px, transparent 1px); background-size: 30px 30px; pointer-events: none; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 52px; align-items: center; position: relative; z-index: 2; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.22); padding: 7px 16px; border-radius: 99px; font-size: 13px; margin-bottom: 24px; }
.hero-badge b { color: #99f6e4; }
.hero h1 { font-size: 48px; line-height: 1.2; font-weight: 800; letter-spacing: -1.5px; margin-bottom: 20px; }
.hero h1 .hl { color: #99f6e4; }
.hero .lead { font-size: 17px; color: #ccfbf1; max-width: 520px; margin-bottom: 32px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 48px; }
.hero-stats { display: flex; gap: 44px; flex-wrap: wrap; }
.hero-stats .stat { display: flex; flex-direction: column; }
.hero-stats .stat b { font-size: 34px; font-weight: 800; color: #fff; line-height: 1; }
.hero-stats .stat b em { font-style: normal; color: #99f6e4; }
.hero-stats .stat span { font-size: 13px; color: #ccfbf1; margin-top: 4px; }
.hero-visual { background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.18); border-radius: 20px; padding: 24px; backdrop-filter: blur(6px); box-shadow: var(--shadow-lg); }
.mock-browser { background: #042f2e; border-radius: 12px; overflow: hidden; }
.mock-browser .bar { display: flex; align-items: center; gap: 6px; padding: 10px 14px; background: #115e59; }
.mock-browser .bar i { width: 10px; height: 10px; border-radius: 50%; background: #ff5f57; }
.mock-browser .bar i:nth-child(2) { background: #febc2e; }
.mock-browser .bar i:nth-child(3) { background: #28c840; }
.mock-browser .bar span { margin-left: auto; color: #5eead4; font-size: 12px; }
.mock-body { padding: 18px; display: grid; gap: 12px; }
.mock-row { background: #115e59; border-radius: 10px; padding: 13px; display: flex; align-items: center; gap: 12px; }
.mock-row .dot { width: 32px; height: 32px; border-radius: 8px; background: linear-gradient(135deg, var(--primary), var(--cyan)); flex: none; }
.mock-row .lines { flex: 1; display: grid; gap: 6px; }
.mock-row .lines i { height: 8px; border-radius: 4px; background: #0f766e; display: block; }
.mock-row .lines i:first-child { width: 68%; background: #0f766e; }
.mock-row .lines i:last-child { width: 42%; }
.mock-row .pill { background: rgba(6,182,212,.16); color: #5eead4; font-size: 11px; padding: 4px 10px; border-radius: 99px; }

/* 通用 section */
.section { padding: 92px 0; }
.section-soft { background: var(--bg-soft); }
.sec-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.sec-head .kicker { display: inline-block; color: var(--primary); font-weight: 700; font-size: 13px; letter-spacing: 2px; margin-bottom: 12px; }
.sec-head h2 { font-size: 36px; font-weight: 800; letter-spacing: -.8px; color: var(--ink); margin-bottom: 16px; }
.sec-head p { color: var(--muted); font-size: 16px; }

/* 数字条 */
.stats-band { background: linear-gradient(135deg, var(--primary-dark), var(--primary)); color: #fff; padding: 56px 0; }
.stats-band .grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; text-align: center; }
.stats-band b { font-size: 44px; font-weight: 800; color: #fff; display: block; line-height: 1; }
.stats-band b em { font-style: normal; color: #99f6e4; }
.stats-band span { color: #ccfbf1; font-size: 14px; }

/* 产品矩阵 */
.prod-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.prod-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 24px; box-shadow: var(--shadow-sm); transition: border-color .25s, transform .25s; }
.prod-card:hover { border-color: var(--primary); transform: translateY(-5px); }
.prod-card .ic { width: 54px; height: 54px; border-radius: 14px; background: linear-gradient(135deg, var(--blue-tint), #fff); border: 1px solid var(--line); color: var(--primary); display: grid; place-items: center; font-size: 24px; margin-bottom: 16px; }
.prod-card h3 { font-size: 17px; color: var(--ink); margin-bottom: 8px; }
.prod-card p { font-size: 13.5px; color: var(--muted); margin-bottom: 14px; }
.prod-card .tags { display: flex; flex-wrap: wrap; gap: 6px; }
.prod-card .tags span { background: var(--blue-tint); border: 1px solid var(--line); border-radius: 6px; padding: 3px 9px; font-size: 12px; color: var(--primary-dark); }

/* 解决方案 */
.sol-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.sol-card { text-align: center; padding: 26px 16px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); transition: transform .25s, border-color .25s; }
.sol-card:hover { transform: translateY(-5px); border-color: var(--primary); }
.sol-card .ic { width: 52px; height: 52px; margin: 0 auto 14px; border-radius: 14px; background: var(--blue-soft); color: var(--primary); display: grid; place-items: center; font-size: 24px; }
.sol-card b { display: block; font-size: 15px; color: var(--ink); margin-bottom: 4px; }
.sol-card span { font-size: 12.5px; color: var(--muted); }

/* 流程 */
.flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.flow-step { text-align: center; }
.flow-step .num { width: 46px; height: 46px; margin: 0 auto 14px; border-radius: 50%; background: linear-gradient(135deg, var(--primary), var(--cyan)); color: #fff; display: grid; place-items: center; font-weight: 800; }
.flow-step b { display: block; color: var(--ink); font-size: 15px; margin-bottom: 5px; }
.flow-step p { font-size: 12.5px; color: var(--muted); }

/* 案例 */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); transition: transform .25s, box-shadow .25s; }
.case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.case-card .thumb { height: 110px; background: linear-gradient(135deg, var(--primary), var(--cyan)); color: #fff; display: grid; place-items: center; font-size: 24px; font-weight: 800; letter-spacing: 2px; }
.case-card .body { padding: 24px; }
.case-card .body .tag { display: inline-block; background: var(--blue-soft); color: var(--primary); font-size: 12px; font-weight: 700; padding: 3px 11px; border-radius: 99px; margin-bottom: 12px; }
.case-card h3 { font-size: 17px; color: var(--ink); margin-bottom: 8px; }
.case-card p { font-size: 13.5px; color: var(--muted); }
.case-card .metrics { display: flex; gap: 18px; margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--line); }
.case-card .metrics b { display: block; font-size: 20px; color: var(--primary); }
.case-card .metrics span { font-size: 12px; color: var(--muted); }

/* 认证条 */
.cert-band { border-top: 1px solid var(--line); padding: 40px 0; text-align: center; }
.cert-band .items { display: flex; flex-wrap: wrap; gap: 12px 36px; justify-content: center; }
.cert-band .items span { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 14px; font-weight: 600; }
.cert-band .items .ic { width: 34px; height: 34px; border-radius: 9px; background: var(--blue-soft); color: var(--primary); display: grid; place-items: center; font-size: 17px; }

/* 服务 */
.service-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.service-card { text-align: center; padding: 28px 20px; }
.service-card .ic { width: 60px; height: 60px; margin: 0 auto 14px; border-radius: 50%; background: var(--blue-soft); color: var(--primary); display: grid; place-items: center; font-size: 26px; }
.service-card b { display: block; font-size: 17px; color: var(--ink); margin-bottom: 6px; }
.service-card p { font-size: 13px; color: var(--muted); }

/* FAQ */
.faq { display: grid; gap: 12px; max-width: 820px; margin: 0 auto; }
.faq-item { border: 1px solid var(--line); border-radius: var(--radius-sm); background: #fff; overflow: hidden; }
.faq-item summary { list-style: none; cursor: pointer; padding: 20px 22px; font-weight: 700; color: var(--ink); font-size: 15.5px; display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-size: 22px; color: var(--primary); transition: transform .2s; }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item .faq-body { padding: 0 22px 20px; color: var(--muted); font-size: 14px; }

/* 联系 */
.contact { position: relative; overflow: hidden; color: #fff; background: linear-gradient(135deg, #0f766e, var(--primary) 55%, var(--primary-light)); padding: 90px 0; }
.contact::before { content: ""; position: absolute; inset: 0; background-image: radial-gradient(rgba(255,255,255,.06) 1px, transparent 1px); background-size: 30px 30px; }
.contact-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; position: relative; z-index: 2; }
.contact h2 { font-size: 36px; font-weight: 800; letter-spacing: -.8px; margin-bottom: 16px; }
.contact h2 span { color: #99f6e4; }
.contact .lead { color: #ccfbf1; font-size: 16px; margin-bottom: 30px; }
.contact-info { display: grid; gap: 14px; }
.contact-info .row { display: flex; align-items: center; gap: 14px; background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.16); border-radius: 12px; padding: 16px 20px; }
.contact-info .row .ic { width: 42px; height: 42px; border-radius: 11px; background: rgba(255,255,255,.12); color: #99f6e4; display: grid; place-items: center; flex: none; font-size: 18px; }
.contact-info .row b { display: block; font-size: 13px; color: #ccfbf1; font-weight: 500; }
.contact-info .row .val { font-size: 18px; font-weight: 700; color: #fff; }
.contact-qr { background: #fff; border-radius: 20px; padding: 34px; text-align: center; color: var(--ink); box-shadow: var(--shadow-lg); }
.contact-qr img { width: 210px; margin: 0 auto 18px; border-radius: 14px; }
.contact-qr b { display: block; font-size: 19px; color: var(--ink); margin-bottom: 4px; }
.contact-qr p { font-size: 13.5px; color: var(--muted); }

/* 页脚 */
.footer { background: #14201f; color: #97a5bd; padding: 56px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 36px; padding-bottom: 40px; }
.footer h4 { color: #fff; font-size: 15px; margin-bottom: 16px; }
.footer p { font-size: 13.5px; line-height: 1.8; }
.footer ul li { margin-bottom: 10px; font-size: 13.5px; }
.footer ul li a:hover { color: #fff; }
.footer .brand { color: #fff; margin-bottom: 14px; }
.footer-bottom { border-top: 1px solid #14201f; padding: 22px 0; font-size: 12.5px; color: #748199; }
.footer-bottom .container { display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; }
.footer-bottom a { color: #97a5bd; }
.footer-bottom a:hover { color: #fff; }

.float-wx { position: fixed; right: 22px; bottom: 22px; z-index: 200; }
.wx-fab { width: 60px; height: 60px; border-radius: 50%; background: linear-gradient(135deg, var(--primary), var(--cyan)); color: #fff; display: grid; place-items: center; font-size: 13px; font-weight: 700; line-height: 1.2; text-align: center; cursor: pointer; box-shadow: 0 10px 26px rgba(13,148,136,.4); }
.wx-pop { position: absolute; right: 0; bottom: 72px; width: 230px; background: #fff; border-radius: 16px; box-shadow: var(--shadow-lg); border: 1px solid var(--line); padding: 20px; text-align: center; opacity: 0; visibility: hidden; transform: translateY(10px); transition: all .25s; }
.wx-pop.show { opacity: 1; visibility: visible; transform: translateY(0); }
.wx-pop img { width: 150px; margin: 0 auto 12px; border-radius: 10px; }
.wx-pop b { display: block; color: var(--ink); font-size: 14px; }
.wx-pop p { font-size: 12.5px; color: var(--muted); margin-top: 4px; }

.modal-overlay { position: fixed; inset: 0; background: rgba(18,28,46,.64); backdrop-filter: blur(4px); z-index: 300; display: none; align-items: center; justify-content: center; padding: 20px; }
.modal-overlay.show { display: flex; }
.modal { position: relative; background: #fff; border-radius: 20px; max-width: 380px; width: 100%; padding: 36px 30px 30px; text-align: center; box-shadow: 0 40px 90px rgba(0,0,0,.35); animation: mp .25s ease; }
@keyframes mp { from { transform: scale(.92); opacity: 0; } to { transform: scale(1); opacity: 1; } }
.modal-close { position: absolute; top: 14px; right: 16px; border: none; background: #eef2f7; color: #4a5568; width: 32px; height: 32px; border-radius: 50%; cursor: pointer; font-size: 16px; }
.modal h3 { color: var(--ink); font-size: 22px; font-weight: 800; margin-bottom: 6px; }
.modal .sub { color: var(--muted); font-size: 14px; margin-bottom: 20px; }
.modal-qr { width: 190px; margin: 0 auto 18px; border-radius: 14px; border: 1px solid var(--line); }
.modal-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; background: var(--bg-soft); border: 1px solid var(--line); border-radius: 12px; padding: 12px 16px; margin-bottom: 10px; font-size: 14px; color: var(--muted); }
.modal-row .val { font-weight: 700; color: var(--primary); font-size: 16px; }
.modal .btn-block { margin-top: 8px; }

.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }

@media (max-width: 1024px) {
  .prod-grid { grid-template-columns: repeat(2, 1fr); }
  .sol-grid { grid-template-columns: repeat(3, 1fr); }
  .case-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  .hero { padding: 64px 0 68px; }
  .hero-grid, .contact-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 36px; }
  .topbar-right { display: none; }
  .header-phone, .header-cta { display: none; }
  .nav-toggle { display: block; }
  .main-nav { position: fixed; inset: 0 0 0 auto; width: 82%; max-width: 340px; background: #fff; z-index: 220; padding: 24px; transform: translateX(100%); transition: transform .3s; box-shadow: var(--shadow-lg); overflow-y: auto; }
  .main-nav.open { transform: translateX(0); }
  .main-nav > ul { flex-direction: column; align-items: stretch; gap: 4px; }
  .dropdown { position: static; width: auto; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: none; padding: 4px 0 4px 14px; grid-template-columns: 1fr; display: none; }
  .main-nav li.has-dropdown.open .dropdown { display: grid; }
  .nav-overlay { position: fixed; inset: 0; background: rgba(18,28,46,.5); z-index: 210; opacity: 0; visibility: hidden; transition: .3s; }
  .nav-overlay.show { opacity: 1; visibility: visible; }
  .stats-band .grid { grid-template-columns: repeat(2, 1fr); }
  .flow { grid-template-columns: repeat(3, 1fr); gap: 24px 0; }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .prod-grid, .case-grid, .flow, .footer-grid, .sol-grid, .service-grid { grid-template-columns: 1fr; }
  .sec-head h2 { font-size: 28px; }
  .contact h2 { font-size: 30px; }
  .section { padding: 64px 0; }
  .hero h1 { font-size: 30px; }
  .hero-stats { gap: 28px; }
}

.center { text-align: center; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 28px; }