:root {
  --navy: #0b2f49;
  --navy-deep: #071d2e;
  --blue: #12577e;
  --teal: #16808a;
  --orange: #e87932;
  --ink: #152533;
  --muted: #61707d;
  --line: #dbe5ea;
  --soft: #f3f7f8;
  --paper: #ffffff;
  --shell: min(1180px, calc(100% - 36px));
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); line-height: 1.7; }
a { color: inherit; }
img { max-width: 100%; }
.shell { width: var(--shell); margin-inline: auto; }
.topline { background: var(--navy-deep); color: #dbeaf2; font-size: 12px; }
.topline .shell { min-height: 34px; display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.topline a { color: #fff; text-decoration: none; }
.topline a:hover { color: #ffd3a7; }
.header { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.97); border-bottom: 1px solid var(--line); box-shadow: 0 4px 18px rgba(7,29,46,.08); }
.header-inner { min-height: 78px; display: flex; align-items: center; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 11px; margin-right: auto; text-decoration: none; }
.brand img { width: 49px; height: 49px; }
.brand strong { display: block; color: var(--navy); font-size: 20px; line-height: 1.1; letter-spacing: .04em; }
.brand small { display: block; margin-top: 4px; color: var(--muted); font-size: 10px; letter-spacing: .06em; }
.nav { display: flex; align-items: center; gap: 4px; }
.nav a { padding: 9px 12px; border-radius: 4px; color: #38505f; font-size: 14px; font-weight: 700; text-decoration: none; }
.nav a:hover, .nav a.active { background: var(--navy); color: #fff; }
.nav-cta { display: inline-flex !important; align-items: center; justify-content: center; min-height: 40px; padding-inline: 15px !important; background: var(--orange); color: #fff !important; }
.nav-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 4px; background: #fff; color: var(--navy); font-size: 22px; cursor: pointer; }
.hero { position: relative; min-height: 640px; display: flex; align-items: center; overflow: hidden; background: var(--navy) url("../assets/port-hero.jpg") center / cover no-repeat; color: #fff; }
.hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(5,24,39,.92) 0%, rgba(7,33,52,.76) 44%, rgba(7,33,52,.18) 100%); }
.hero-content { position: relative; z-index: 1; padding-block: 82px; }
.eyebrow { margin: 0 0 12px; color: #ffc28f; font-size: 13px; font-weight: 800; letter-spacing: .1em; }
.hero h1 { max-width: 740px; margin: 0 0 20px; font-size: clamp(34px, 5vw, 60px); line-height: 1.14; letter-spacing: .01em; }
.hero-lede { max-width: 690px; margin: 0 0 26px; color: #e7f1f6; font-size: 18px; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 31px; }
.hero-tags span { padding: 5px 10px; border: 1px solid rgba(255,255,255,.42); border-radius: 3px; background: rgba(6,28,45,.38); color: #f5fbfd; font-size: 12px; }
.actions { display: flex; flex-wrap: wrap; gap: 11px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 10px 18px; border: 1px solid transparent; border-radius: 4px; font-size: 14px; font-weight: 800; text-decoration: none; cursor: pointer; }
.button.primary { background: var(--orange); color: #fff; }
.button.primary:hover { background: #c95d1d; }
.button.secondary { border-color: rgba(255,255,255,.75); color: #fff; }
.button.secondary:hover { border-color: #fff; background: #fff; color: var(--navy); }
.button.outline { border-color: var(--blue); color: var(--blue); background: #fff; }
.button.outline:hover { background: var(--blue); color: #fff; }
.hero-note { max-width: 700px; margin-top: 27px; color: #c5d9e3; font-size: 12px; }
.quick-band { border-bottom: 1px solid var(--line); background: #fff; }
.quick-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.quick-grid article { padding: 21px 22px; border-right: 1px solid var(--line); }
.quick-grid article:last-child { border-right: 0; }
.quick-grid b { display: block; color: var(--navy); font-size: 22px; line-height: 1.2; }
.quick-grid span { color: var(--muted); font-size: 12px; }
.section { padding-block: 72px; }
.section.soft { background: var(--soft); }
.section-heading { max-width: 760px; margin-bottom: 30px; }
.section-heading p { margin: 0 0 5px; color: var(--orange); font-size: 13px; font-weight: 800; letter-spacing: .08em; }
.section-heading h2 { margin: 0; color: var(--navy); font-size: 31px; line-height: 1.25; }
.section-heading .intro { margin: 10px 0 0; color: var(--muted); font-size: 15px; }
.service-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 15px; }
.service-card { min-height: 222px; padding: 23px; border: 1px solid var(--line); border-top: 4px solid var(--blue); background: #fff; }
.service-card:nth-child(3n+2) { border-top-color: var(--teal); }
.service-card:nth-child(3n+3) { border-top-color: var(--orange); }
.service-card .service-index { color: var(--orange); font-size: 12px; font-weight: 800; }
.service-card h3 { margin: 8px 0 8px; color: var(--navy); font-size: 19px; line-height: 1.3; }
.service-card p { margin: 0 0 13px; color: var(--muted); font-size: 13px; }
.service-card a { color: var(--blue); font-size: 13px; font-weight: 800; text-decoration: none; }
.service-card a:hover { color: var(--orange); }
.route-layout { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(300px, .9fr); gap: 48px; align-items: start; }
.route-map { min-height: 370px; padding: 30px; border: 1px solid #bed3db; background: #eaf4f5; }
.route-map h3 { margin: 0 0 20px; color: var(--navy); font-size: 22px; }
.route-line { position: relative; display: grid; grid-template-columns: 1fr 70px 1fr; align-items: center; gap: 14px; margin: 31px 0; }
.route-line::before { content: ""; position: absolute; top: 50%; left: 16%; right: 16%; height: 2px; background: var(--teal); }
.route-node { position: relative; z-index: 1; padding: 14px 10px; border: 1px solid #a6c4cd; background: #fff; text-align: center; }
.route-node strong { display: block; color: var(--navy); font-size: 17px; }
.route-node span { display: block; color: var(--muted); font-size: 11px; }
.route-ship { position: relative; z-index: 1; display: grid; place-items: center; width: 58px; height: 58px; border-radius: 50%; background: var(--teal); color: #fff; font-size: 24px; }
.check-list { display: grid; gap: 12px; margin: 0; padding: 0; list-style: none; }
.check-list li { display: grid; grid-template-columns: 28px 1fr; gap: 10px; align-items: start; padding-bottom: 12px; border-bottom: 1px dashed var(--line); }
.check-list li::before { content: "✓"; display: grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; background: #dceff0; color: var(--teal); font-weight: 900; }
.check-list strong { display: block; color: var(--navy); font-size: 14px; }
.check-list span { display: block; color: var(--muted); font-size: 13px; }
.process { display: grid; grid-template-columns: repeat(4, 1fr); gap: 13px; counter-reset: process; }
.process article { position: relative; padding: 21px 19px 19px; border: 1px solid var(--line); background: #fff; counter-increment: process; }
.process article::before { content: counter(process, decimal-leading-zero); display: block; margin-bottom: 15px; color: var(--orange); font-size: 26px; font-weight: 900; line-height: 1; }
.process h3 { margin: 0 0 7px; color: var(--navy); font-size: 16px; }
.process p { margin: 0; color: var(--muted); font-size: 13px; }
.faq-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 30px; }
.faq-grid details { border-top: 1px solid var(--line); }
.faq-grid details:last-child, .faq-grid details:nth-last-child(2) { border-bottom: 1px solid var(--line); }
.faq-grid summary { padding: 17px 3px; color: var(--navy); font-weight: 800; cursor: pointer; }
.faq-grid p { margin: 0; padding: 0 3px 17px; color: var(--muted); font-size: 13px; }
.contact-band { padding-block: 48px; background: var(--navy); color: #fff; }
.contact-band-inner { display: flex; align-items: center; justify-content: space-between; gap: 25px; }
.contact-band h2 { margin: 0 0 5px; font-size: 27px; }
.contact-band p { margin: 0; color: #c7dbe4; font-size: 14px; }
.footer { background: var(--navy-deep); color: #c4d6df; }
.footer-grid { display: grid; grid-template-columns: 1.2fr .8fr 1fr; gap: 35px; padding-block: 41px; }
.footer strong { color: #fff; }
.footer p { margin: 8px 0 0; font-size: 13px; }
.footer a { color: #fff; text-decoration: none; }
.footer a:hover { color: #ffc28f; }
.copyright { padding-block: 14px; border-top: 1px solid rgba(255,255,255,.14); color: #8eabb9; font-size: 11px; }
.floating-consult { position: fixed; right: 19px; bottom: 20px; z-index: 25; display: inline-flex; align-items: center; gap: 8px; min-height: 44px; padding: 10px 15px; border-radius: 4px; background: var(--orange); color: #fff; box-shadow: 0 8px 22px rgba(8,34,52,.24); font-size: 13px; font-weight: 800; text-decoration: none; }
.floating-consult:hover { background: #c95d1d; }
.page-hero { min-height: 360px; display: flex; align-items: end; background: var(--navy) url("../assets/port-hero.jpg") center 43% / cover no-repeat; color: #fff; }
.page-hero::before { content: ""; position: absolute; inset: 0; background: rgba(4,27,43,.72); }
.page-hero { position: relative; }
.page-hero .hero-content { width: 100%; padding-block: 60px; }
.page-hero h1 { max-width: 820px; margin: 0 0 12px; font-size: clamp(32px, 5vw, 48px); line-height: 1.18; }
.page-hero p:not(.eyebrow) { max-width: 760px; margin: 0; color: #e1eef3; }
.service-list { display: grid; gap: 18px; }
.service-row { display: grid; grid-template-columns: 240px 1fr; gap: 25px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.service-row h3 { margin: 0; color: var(--navy); font-size: 20px; }
.service-row h3 span { display: block; margin-top: 6px; color: var(--orange); font-size: 11px; letter-spacing: .08em; }
.service-row p { margin: 0; color: var(--muted); font-size: 14px; }
.service-row ul { display: flex; flex-wrap: wrap; gap: 7px; margin: 12px 0 0; padding: 0; list-style: none; }
.service-row li { padding: 4px 8px; border: 1px solid #c8dce1; border-radius: 3px; background: #f3fafb; color: var(--blue); font-size: 12px; }
.contact-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.contact-panel { padding: 26px; border: 1px solid var(--line); background: #fff; }
.contact-panel h2 { margin: 0 0 9px; color: var(--navy); font-size: 23px; }
.contact-panel p { margin: 0 0 15px; color: var(--muted); font-size: 14px; }
.contact-details { display: grid; gap: 11px; margin: 17px 0 0; }
.contact-details div { padding: 11px 13px; border-left: 3px solid var(--teal); background: var(--soft); }
.contact-details b { display: block; color: var(--navy); font-size: 12px; }
.contact-details span { display: block; color: var(--muted); font-size: 14px; }
.notice { padding: 13px 15px; border-left: 3px solid var(--orange); background: #fff7ef; color: #71441f; font-size: 13px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

@media (max-width: 860px) {
  .header-inner { min-height: 66px; gap: 12px; }
  .nav-toggle { display: block; }
  .nav { position: absolute; top: 66px; right: 18px; left: 18px; display: none; flex-direction: column; align-items: stretch; padding: 9px; border: 1px solid var(--line); background: #fff; box-shadow: 0 12px 24px rgba(7,29,46,.15); }
  .nav.open { display: flex; }
  .nav a { padding: 11px 12px; }
  .hero { min-height: 610px; }
  .quick-grid { grid-template-columns: repeat(2, 1fr); }
  .quick-grid article:nth-child(2) { border-right: 0; }
  .quick-grid article:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .service-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .route-layout { grid-template-columns: 1fr; gap: 30px; }
  .process { grid-template-columns: repeat(2, 1fr); }
  .contact-band-inner { align-items: flex-start; flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > div:first-child { grid-column: 1 / -1; }
}

@media (max-width: 600px) {
  :root { --shell: min(100% - 26px, 1180px); }
  .topline .shell { justify-content: center; min-height: 30px; }
  .topline .topline-email { display: none; }
  .brand strong { font-size: 17px; }
  .brand small { font-size: 8px; }
  .brand img { width: 43px; height: 43px; }
  .hero-content { padding-block: 60px; }
  .hero h1 { font-size: 35px; }
  .hero-lede { font-size: 15px; }
  .section { padding-block: 51px; }
  .section-heading h2 { font-size: 25px; }
  .service-grid, .faq-grid, .contact-layout { grid-template-columns: 1fr; }
  .route-map { padding: 20px 13px; }
  .route-line { grid-template-columns: 1fr 45px 1fr; gap: 7px; }
  .route-node { padding: 10px 4px; }
  .route-node strong { font-size: 14px; }
  .route-ship { width: 42px; height: 42px; font-size: 18px; }
  .process { grid-template-columns: 1fr; }
  .service-row { grid-template-columns: 1fr; gap: 8px; padding-block: 20px; }
  .footer-grid { grid-template-columns: 1fr; gap: 22px; }
  .footer-grid > div:first-child { grid-column: auto; }
  .floating-consult { right: 12px; bottom: 12px; }
}