/* Brand: deep ocean blue, freight orange, crisp editorial spacing. */
:root {
  --navy: #102e3b;
  --ink: #173440;
  --muted: #5f7179;
  --orange: #ee6b37;
  --paper: #f5f7f6;
  --line: #d8e1e2;
  --blue: #e6eef0;
  --space: clamp(24px, 5vw, 80px);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 112px; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: "PingFang SC", "Microsoft YaHei", Arial, sans-serif; font-size: 16px; line-height: 1.75; -webkit-font-smoothing: antialiased; }
::selection { background: #f6a376; color: #102e3b; }
a { color: inherit; text-decoration: none; }
button { color: inherit; cursor: pointer; font: inherit; }
a, button, summary { -webkit-tap-highlight-color: transparent; }
a:focus-visible, button:focus-visible, summary:focus-visible, [tabindex]:focus-visible { outline: 3px solid #d54e1a; outline-offset: 5px; }
svg, img { display: block; }
img { max-width: 100%; }
h1, h2, h3, p { margin-top: 0; }
h2 { margin-bottom: 0; font-size: clamp(28px, 2.7vw, 40px); line-height: 1.45; font-weight: 600; letter-spacing: -.03em; text-wrap: balance; }
.wrap { width: min(1280px, calc(100% - var(--space) * 2)); margin-inline: auto; }
.skip-link { position: fixed; left: 20px; top: -100px; z-index: 100; background: var(--navy); color: white; padding: 12px 24px; }
.skip-link:focus { top: 12px; }
.eyebrow { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; font-size: 12px; font-weight: 600; letter-spacing: .15em; line-height: 1.6; }
.eyebrow::before { content: ""; width: 25px; height: 2px; flex-shrink: 0; background: var(--orange); }
.btn { min-height: 52px; padding: 13px 24px; display: inline-flex; align-items: center; justify-content: center; gap: 32px; border: 1px solid transparent; color: var(--navy); background: var(--orange); font-size: 14px; font-weight: 650; transition: transform .2s ease, background .2s ease, border-color .2s ease; }
.btn:hover { background: #ff8b54; transform: translateY(-2px); }
.btn .arrow { font-size: 22px; line-height: 1; font-weight: 400; }
.btn.dark { background: var(--navy); color: white; }
.btn.dark:hover { background: #245467; }
.btn.outline { color: white; background: #102e3b20; border-color: #a5b5bc; }
.btn.outline:hover { background: #ffffff12; border-color: white; }
.text-link { display: inline-flex; align-items: center; gap: 28px; padding: 10px 0; min-height: 44px; font-size: 14px; font-weight: 600; border-bottom: 1px solid #8b9c9f; }
.text-link:hover { color: #b4461a; border-color: #b4461a; }

/* Header and navigation */
.topline { background: var(--navy); color: #c5d4da; font-size: 12px; letter-spacing: .06em; }
.topline .wrap { display: flex; align-items: center; justify-content: space-between; padding-block: 8px; }
.topline em { color: var(--orange); font-style: normal; padding-inline: 6px; }
.header { position: sticky; top: 0; z-index: 30; background: #f5f7f6f5; border-bottom: 1px solid var(--line); backdrop-filter: blur(14px); }
.header-inner { min-height: 91px; display: flex; align-items: center; justify-content: space-between; gap: 25px; }
.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand-mark { width: 41px; height: 41px; flex-shrink: 0; }
.brand-name { font-size: 21px; font-weight: 700; line-height: 1.5; letter-spacing: -.035em; }
.brand-sub { font-size: 10px; letter-spacing: .16em; line-height: 1.5; }
.nav { display: flex; align-items: center; gap: 27px; font-size: 14px; white-space: nowrap; }
.nav > a { padding-block: 31px; position: relative; }
.nav > a::after { content: ""; position: absolute; bottom: 21px; left: 0; right: 100%; height: 2px; background: var(--orange); transition: right .2s ease; }
.nav > a:hover::after, .nav > a[aria-current]::after { right: 0; }
.nav > a[aria-current] { font-weight: 650; }
.header .btn { min-height: 46px; padding: 9px 19px; gap: 24px; }
.menu-btn { display: none; width: 46px; height: 46px; border: 1px solid var(--line); background: transparent; padding: 12px; flex-shrink: 0; }
.menu-btn span { display: block; height: 2px; width: 20px; background: currentColor; margin-block: 4px; transition: transform .2s ease, opacity .2s ease; }
.menu-btn[aria-expanded="true"] span:first-child { transform: translateY(6px) rotate(45deg); }
.menu-btn[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-btn[aria-expanded="true"] span:last-child { transform: translateY(-6px) rotate(-45deg); }

/* The image is packaged locally from the supplied company reference. */
.hero { position: relative; isolation: isolate; color: white; background: var(--navy); overflow: hidden; min-height: 655px; }
.hero-photo { position: absolute; inset: 0; z-index: -1; background-position: center 48%; background-size: cover; }
.hero-photo::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, #071e2af5 0%, #092332db 32%, #09233247 68%, #0923320f 100%), linear-gradient(0deg, #071e2ad9, transparent 38%); }
.hero-content { position: relative; padding-top: 91px; padding-bottom: 116px; }
.hero .eyebrow { color: #d2dfe6; margin-bottom: 25px; }
.hero h1 { font-size: clamp(43px, 4.6vw, 68px); line-height: 1.32; letter-spacing: -.025em; font-weight: 600; margin-bottom: 26px; }
.hero h1 span { color: #ff9b69; }
.hero p.desc { font-size: 16px; color: #d0dbe0; line-height: 1.95; max-width: 510px; margin-bottom: 34px; }
.hero-actions { display: flex; align-items: center; gap: 14px; }
.hero-caption { position: absolute; right: 0; top: 294px; width: 228px; padding-top: 20px; border-top: 1px solid #ffffff85; }
.hero-caption strong { display: block; font-size: 13px; letter-spacing: .13em; }
.hero-caption small { display: block; margin-top: 6px; font-size: 12px; color: #e0e8ec; }
.hero-foot { position: absolute; bottom: 25px; left: 0; right: 0; display: flex; align-items: center; justify-content: space-between; color: #d0dce3; font-size: 12px; letter-spacing: .08em; }
.hero-foot > a { min-height: 44px; display: flex; align-items: center; gap: 8px; }
.hero-foot > a:hover { color: white; }
.hero-pages { display: flex; align-items: center; gap: 11px; }
.hero-pages b { width: 45px; height: 2px; background: var(--orange); }
.hero-pages i { width: 25px; height: 2px; background: #ffffff50; }

/* Capabilities and services */
.capability-strip { background: white; border-bottom: 1px solid var(--line); }
.capabilities { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); padding-block: 32px; }
.capability { display: flex; align-items: center; gap: 18px; padding-inline: 28px; border-right: 1px solid var(--line); }
.capability:first-child { padding-left: 0; }
.capability:last-child { border: 0; }
.icon { width: 32px; height: 32px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }
.capability strong { display: block; font-size: 16px; font-weight: 600; }
.capability span { display: block; font-size: 10px; color: var(--muted); letter-spacing: .045em; margin-top: 3px; }
.section { padding-block: 94px; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 48px; margin-bottom: 40px; }
.section-head > p { max-width: 405px; font-size: 15px; color: var(--muted); margin-bottom: 3px; line-height: 1.9; }
.services { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); background: white; border: 1px solid var(--line); }
.service { display: flex; flex-direction: column; border-right: 1px solid var(--line); padding: 31px 28px 25px; min-height: 335px; position: relative; transition: background .25s ease; }
.service:last-child { border-right: 0; }
.service::before { content: ""; height: 3px; background: var(--orange); position: absolute; top: -1px; left: -1px; right: -1px; transform: scaleX(0); transform-origin: left; transition: transform .25s ease; }
.service:hover { background: #f0f5f5; }
.service:hover::before { transform: scaleX(1); }
.service-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 30px; }
.service .icon { width: 43px; height: 43px; }
.service-top > span { font-size: 10px; color: #6b7e85; letter-spacing: .02em; }
.service h3 { font-size: 23px; font-weight: 600; margin-bottom: 13px; }
.service p { color: var(--muted); font-size: 15px; line-height: 1.9; margin-bottom: 27px; }
.service-tags { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; margin-top: auto; border-top: 1px solid var(--line); padding-top: 18px; font-size: 12px; color: var(--muted); }
.service-tags > span + span:not(.service-arrow)::before { content: "/"; margin-right: 12px; color: #a8b7bb; }
.service-arrow { margin-left: auto; font-size: 21px; line-height: 1; color: var(--ink); }

/* Company introduction */
.about { display: grid; grid-template-columns: 1.02fr 1fr; gap: 80px; align-items: center; padding-top: 100px; scroll-margin-top: 35px; }
.about-picture { height: 433px; position: relative; background: var(--blue); overflow: hidden; }
.about-picture img { width: 100%; height: 100%; object-fit: cover; object-position: 80% 45%; transition: transform .6s ease; }
.about-picture:hover img { transform: scale(1.035); }
.picture-label { position: absolute; bottom: 0; left: 0; padding: 27px 33px; color: white; background: var(--navy); border-right: 3px solid var(--orange); }
.picture-label span { display: block; font-size: 11px; letter-spacing: .13em; color: #bacfd7; margin-bottom: 4px; }
.picture-label strong { font-size: 26px; font-weight: 500; }
.about-copy > p:not(.eyebrow) { color: var(--muted); line-height: 2; font-size: 16px; margin: 24px 0; }
.about-copy .eyebrow { font-size: 12px; }
.ticks { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-block: 25px; font-size: 14px; }
.ticks span::before { content: "✓"; color: #b54416; font-weight: 700; margin-right: 10px; }

/* Service process */
.process { background: var(--navy); color: white; }
.process .section-head > p { color: #b9ccd5; }
.steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 38px; padding-top: 13px; }
.step { border-top: 1px solid #51707d; padding-top: 23px; }
.step-no { font-size: 47px; font-family: Georgia, serif; line-height: 1.15; font-weight: 400; color: #9db9c6; }
.step:first-child { border-color: var(--orange); }
.step:first-child .step-no { color: #ff9b69; }
.step h3 { font-size: 21px; font-weight: 500; margin: 24px 0 11px; }
.step p { font-size: 15px; line-height: 1.9; color: #bcced6; margin-bottom: 0; }

/* Domestic and international service structure */
.network { background: var(--blue); }
.network-layout { display: grid; grid-template-columns: 380px minmax(0, 1fr); align-items: center; gap: 65px; }
.network p:not(.eyebrow) { color: var(--muted); font-size: 16px; line-height: 1.9; margin-top: 20px; }
.tabs { display: flex; gap: 32px; border-bottom: 1px solid #aebfc5; margin-top: 28px; margin-bottom: 22px; }
.tabs button { min-height: 48px; padding: 10px 2px; border: 0; border-bottom: 2px solid transparent; background: transparent; font-size: 15px; color: var(--muted); }
.tabs button:hover { color: var(--ink); }
.tabs button[aria-selected="true"] { color: var(--ink); border-color: #c44d1d; font-weight: 600; }
.network-panel h3 { font-size: 20px; font-weight: 500; margin-bottom: 12px; }
.network .network-panel p { font-size: 15px; min-height: 86px; margin-top: 0; }
.network-note { font-size: 12px; color: #536d78; margin-top: 22px; }
.diagram { min-height: 376px; position: relative; display: flex; align-items: center; justify-content: center; border: 1px solid #c3d2d7; background-image: radial-gradient(#bacdd3 .8px, transparent .8px); background-size: 14px 14px; }
.diagram svg { width: 100%; height: auto; }
.diagram-caption { position: absolute; top: 20px; left: 24px; font-size: 11px; color: #4e6b77; letter-spacing: .1em; }
.diagram-bottom { position: absolute; bottom: 18px; right: 22px; font-size: 12px; color: #4e6b77; }

/* Collaboration information, with no data collection. */
.faq-contact { display: grid; grid-template-columns: 1.08fr 1fr; align-items: start; gap: 80px; }
.faq h2 { font-size: 31px; margin-bottom: 25px; }
.faq details { border-bottom: 1px solid var(--line); padding-block: 20px; }
.faq summary { display: flex; align-items: center; justify-content: space-between; gap: 24px; list-style: none; cursor: pointer; min-height: 44px; font-size: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 25px; color: #67818d; flex-shrink: 0; }
.faq details[open] summary::after { content: "−"; color: #b54416; }
.faq details p { color: var(--muted); font-size: 15px; line-height: 1.9; padding-right: 28px; margin-top: 13px; margin-bottom: 4px; }
.consult { background: white; border-top: 3px solid var(--orange); padding: 41px; }
.consult h3 { font-size: 36px; font-weight: 500; line-height: 1.5; margin-bottom: 19px; }
.consult p { color: var(--muted); font-size: 16px; line-height: 1.9; margin-bottom: 27px; }
.consult .btn { width: 100%; justify-content: space-between; }
.cooperation-points { padding: 0; list-style: none; margin: 0 0 27px; }
.cooperation-points li { display: flex; gap: 16px; padding-block: 10px; border-bottom: 1px solid var(--line); font-size: 14px; }
.cooperation-points li span { color: #9a3d19; font-size: 12px; padding-top: 2px; }

/* Footer */
.footer { background: var(--navy); color: #c6d4db; padding: 58px 0 24px; }
.footer-main { display: flex; justify-content: space-between; gap: 60px; padding-bottom: 44px; }
.footer .brand { color: white; }
.footer-intro p { font-size: 14px; margin-top: 19px; margin-bottom: 0; }
.footer-links { display: flex; gap: 80px; }
.footer-links strong { display: block; color: white; font-size: 15px; font-weight: 500; margin-bottom: 14px; }
.footer-links a, .footer-links span { display: block; font-size: 13px; line-height: 1.8; padding-block: 7px; }
.footer-links a:hover { color: #ff9b69; }
.footer-bottom { border-top: 1px solid #ffffff26; padding-top: 22px; display: flex; justify-content: space-between; align-items: center; gap: 22px; font-size: 12px; color: #bbced7; }
.footer-bottom a { padding-block: 8px; }
.footer-motto { letter-spacing: .12em; }
.to-top { position: fixed; bottom: 25px; right: 25px; z-index: 25; width: 46px; height: 46px; display: flex; align-items: center; justify-content: center; border: 1px solid var(--line); color: var(--navy); background: white; font-size: 23px; box-shadow: 0 4px 18px #102e3b10; opacity: 0; visibility: hidden; transform: translateY(8px); transition: opacity .2s, transform .2s, visibility .2s; }
.to-top.visible { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { background: var(--navy); color: white; }

@media (min-width: 1600px) {
  .hero { min-height: 720px; }
  .hero-content { padding-top: 115px; }
  .hero-caption { top: 310px; }
}
@media (max-width: 1200px) {
  :root { --space: 40px; }
  .nav { gap: 20px; }
  .brand-name { font-size: 19px; }
  .brand-sub { font-size: 9px; }
  .header-inner { gap: 18px; }
  .header .btn { gap: 15px; padding-inline: 15px; }
  .capability { padding-inline: 19px; gap: 12px; }
  .capability span { font-size: 9px; }
  .service { padding-inline: 23px; }
  .service-top { align-items: start; flex-direction: column; gap: 18px; }
  .about, .faq-contact { gap: 44px; }
  .network-layout { grid-template-columns: 350px minmax(0, 1fr); gap: 40px; }
  .hero-caption { width: 190px; }
}
@media (max-width: 1100px) {
  .header-inner { min-height: 80px; }
  .header-cta { margin-left: auto; }
  .menu-btn { display: block; }
  .nav { display: none; position: absolute; top: 100%; left: 0; right: 0; padding: 14px var(--space) 20px; flex-direction: column; align-items: stretch; gap: 0; background: var(--paper); box-shadow: 0 10px 18px #102e3b16; border-bottom: 1px solid var(--line); }
  .nav.open { display: flex; }
  .nav > a { padding: 13px 6px; }
  .nav > a::after { display: none; }
  .nav > a[aria-current] { color: #a84017; }
  .hero-caption { display: none; }
  .hero { min-height: 620px; }
  .hero h1 { font-size: 57px; }
  .services { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .service { min-height: 295px; padding: 30px; }
  .service-top { flex-direction: row; align-items: center; margin-bottom: 22px; }
  .service:nth-child(2) { border-right: 0; }
  .service:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .section-head { gap: 30px; }
  .section-head > p { font-size: 14px; }
  .about { gap: 38px; }
  .about-copy > p:not(.eyebrow) { font-size: 15px; }
  .ticks { font-size: 13px; gap: 13px; }
  .network-layout { grid-template-columns: 320px minmax(0, 1fr); gap: 35px; }
  .diagram { min-height: 310px; }
  .steps { gap: 25px; }
  .faq-contact { gap: 35px; }
  .consult { padding: 30px; }
  .faq h2 { font-size: 28px; }
  .consult h3 { font-size: 31px; }
  .footer-links { gap: 42px; }
}
@media (max-width: 800px) {
  :root { --space: 26px; }
  html { scroll-padding-top: 98px; }
  .topline .top-right { display: none; }
  .hero { min-height: 610px; }
  .hero-content { padding-top: 76px; }
  .hero h1 { font-size: clamp(38px, 6.9vw, 53px); }
  .hero-photo { background-position: 64% center; }
  .hero-photo::after { background: linear-gradient(90deg, #071e2aee, #09233278), linear-gradient(0deg, #071e2ac9, transparent 50%); }
  .hero-pages { display: none; }
  .capabilities { grid-template-columns: repeat(2, minmax(0, 1fr)); padding-block: 8px; }
  .capability, .capability:first-child { padding: 22px 16px; }
  .capability:nth-child(2) { border-right: 0; }
  .capability:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .capability span { font-size: 10px; }
  .section { padding-block: 68px; }
  .section-head { display: block; margin-bottom: 32px; }
  .section-head > p { margin-top: 19px; max-width: none; font-size: 15px; }
  h2 { font-size: 33px; }
  .about { grid-template-columns: 1fr; padding-top: 68px; gap: 36px; }
  .about-picture { height: 380px; }
  .about-copy > p:not(.eyebrow) { font-size: 16px; }
  .ticks { font-size: 15px; }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 35px; }
  .network-layout { grid-template-columns: 1fr; gap: 35px; }
  .network .network-panel p { min-height: auto; }
  .diagram { min-height: 340px; }
  .faq-contact { grid-template-columns: 1fr; gap: 42px; }
  .consult { padding: 36px; }
  .footer-main { flex-direction: column; gap: 36px; }
  .footer-links { gap: 85px; }
  .footer-bottom { flex-wrap: wrap; gap: 10px 25px; }
  .footer-motto { display: none; }
}
@media (max-width: 480px) {
  :root { --space: 20px; }
  .topline { font-size: 11px; }
  .header-inner { min-height: 74px; gap: 12px; }
  .brand { gap: 8px; }
  .brand-mark { width: 32px; height: 32px; }
  .brand-name { font-size: 16px; letter-spacing: -.035em; }
  .brand-sub { font-size: 8px; letter-spacing: .08em; }
  .header-cta { display: none; }
  .menu-btn { width: 44px; height: 44px; padding: 11px; }
  .hero { min-height: 585px; }
  .hero-content { padding-top: 64px; padding-bottom: 115px; }
  .hero .eyebrow { font-size: 10px; gap: 8px; letter-spacing: .065em; }
  .hero .eyebrow::before { width: 17px; }
  .hero h1 { font-size: clamp(32px, 9vw, 42px); line-height: 1.45; margin-bottom: 23px; }
  .hero p.desc { font-size: 14px; line-height: 2; }
  .hero-actions { gap: 10px; flex-wrap: wrap; }
  .hero-actions .btn { font-size: 13px; gap: 18px; padding-inline: 15px; min-height: 49px; }
  .hero-foot { font-size: 10px; letter-spacing: .025em; bottom: 20px; }
  .capability, .capability:first-child { padding: 19px 9px; gap: 11px; }
  .capability .icon { width: 27px; height: 27px; }
  .capability strong { font-size: 14px; }
  .capability span { font-size: 8px; letter-spacing: 0; }
  .eyebrow { font-size: 11px; letter-spacing: .06em; margin-bottom: 16px; }
  h2 { font-size: 28px; }
  .section { padding-block: 55px; }
  .section-head > p { font-size: 14px; }
  .services { grid-template-columns: 1fr; }
  .service { padding: 28px; min-height: 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .service:last-child { border-bottom: 0; }
  .service-top { margin-bottom: 20px; }
  .service-top > span { font-size: 11px; }
  .service p { font-size: 15px; margin-bottom: 21px; }
  .service h3 { font-size: 23px; }
  .about { padding-top: 55px; }
  .about-picture { height: 310px; }
  .picture-label { padding: 23px; }
  .picture-label strong { font-size: 23px; }
  .picture-label span { font-size: 10px; }
  .about-copy .eyebrow { font-size: 10px; }
  .ticks { font-size: 13px; gap: 14px 8px; }
  .ticks span::before { margin-right: 6px; }
  .steps { gap: 30px 22px; }
  .step-no { font-size: 39px; }
  .step h3 { font-size: 19px; margin-top: 19px; }
  .step p { font-size: 14px; }
  .diagram { min-height: 250px; margin-inline: -5px; }
  .diagram-caption { left: 15px; top: 14px; font-size: 9px; }
  .diagram-bottom { bottom: 12px; right: 14px; font-size: 10px; }
  .faq h2 { font-size: 27px; }
  .faq summary { font-size: 15px; }
  .consult { padding: 29px 25px; }
  .consult h3 { font-size: 31px; }
  .footer { padding-top: 42px; }
  .footer-links { gap: 60px; }
  .footer-bottom { display: block; font-size: 11px; }
  .footer-bottom > a { display: inline-block; margin-top: 8px; }
  .to-top { right: 14px; bottom: 14px; }
}
@media (max-width: 360px) {
  :root { --space: 16px; }
  .brand-name { font-size: 14px; }
  .brand-sub { font-size: 7px; }
  .hero-actions .btn { padding-inline: 12px; gap: 12px; font-size: 12px; }
  .capability { gap: 8px; }
  .capability span { font-size: 7px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}
@media print {
  .header { position: static; }
  .topline, .menu-btn, .hero-actions, .hero-foot, .to-top, .skip-link { display: none; }
  .wrap { width: 100%; }
  .section { padding-block: 25px; }
  .service, .step, .about-picture { break-inside: avoid; }
}