@charset "UTF-8";

:root {
  color-scheme: light;
  --ink: #203538;
  --accent: #267064;
  --muted: #647276;
  --border: #e1e7e8;
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body { margin: 0; color: var(--ink); background: #fff; font-family: var(--font); -webkit-font-smoothing: antialiased; }
h1, h2, h3, p, figure, dl { margin: 0; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
img { display: block; max-width: 100%; }
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 6px; }
::selection { color: #fff; background: #39766e; }
.container { width: min(1200px, calc(100% - 96px)); margin-inline: auto; }
.skip-link { position: fixed; top: 10px; left: 15px; z-index: 100; padding: 12px 18px; background: var(--ink); color: #fff; transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }
.site-header { position: sticky; top: 0; z-index: 10; background: rgba(255, 255, 255, .97); border-bottom: 1px solid #edf0f0; }
.header-inner { display: flex; min-height: 82px; align-items: center; justify-content: space-between; gap: 32px; }
.brand { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand img { width: 44px; height: 44px; }
.brand > span { display: grid; gap: 4px; }
.brand strong { font-size: 1.3rem; letter-spacing: .12em; font-weight: 600; }
.brand small { font: .75rem Arial, sans-serif; letter-spacing: .06em; color: #526668; }
#main-nav { display: flex; align-items: stretch; align-self: stretch; gap: 48px; }
#main-nav a { display: flex; align-items: center; padding: 4px 12px 0; border-bottom: 3px solid transparent; font-size: .9375rem; color: #4c5e60; transition: color .15s, border-color .15s; }
#main-nav a:hover, #main-nav a[aria-current] { border-bottom-color: var(--accent); color: var(--accent); }
.menu-toggle { display: none; }
.home-hero { position: relative; isolation: isolate; min-height: 490px; background: #dcecf4; overflow: hidden; }
.hero-image { position: absolute; width: 100%; height: 100%; object-fit: cover; object-position: center; z-index: -2; }
.home-hero::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, rgba(234, 244, 249, .82), rgba(238, 247, 251, .22) 49%, transparent 70%); }
.hero-content { padding-block: 70px 72px; }
.home-hero h1 { margin-top: 21px; color: #1d3b4a; font-size: clamp(2.65rem, 4.6vw, 4rem); font-weight: 500; line-height: 1.35; letter-spacing: .04em; }
.hero-intro { margin-top: 19px; color: #385462; font-size: 1.0625rem; line-height: 1.9; }
.button { min-height: 46px; display: inline-flex; align-items: center; justify-content: space-between; gap: 28px; padding: 12px 24px; font-size: .875rem; border: 1px solid transparent; transition: background .18s, color .18s; }
.button-solid { margin-top: 28px; background: #255b5a; color: #fff; }
.button-solid:hover { background: #174744; }
.arrow { display: inline-block; width: 20px; height: 1px; background: currentColor; position: relative; flex: 0 0 auto; }
.arrow::after { position: absolute; content: ""; right: 0; top: -3px; width: 7px; height: 7px; border-top: 1px solid currentColor; border-right: 1px solid currentColor; transform: rotate(45deg); }
.home-overview { display: grid; grid-template-columns: .7fr 1.65fr .8fr; gap: 50px; padding-block: 65px 72px; align-items: start; }
.section-kicker { font: .75rem Arial, sans-serif; color: #617777; letter-spacing: .14em; }
.overview-title h2 { font-size: 1.7rem; font-weight: 500; margin-top: 13px; white-space: nowrap; }
.heading-rule { display: block; width: 30px; height: 2px; background: var(--accent); margin-top: 25px; }
.overview-copy p { font-size: 1rem; line-height: 1.95; color: #576b6e; margin-top: -6px; }
.text-link { display: inline-flex; align-items: center; gap: 27px; color: var(--accent); font-size: .875rem; margin-top: 18px; padding-block: 6px; }
.text-link:hover { text-decoration: underline; text-underline-offset: 5px; }
.overview-links { display: grid; margin-top: -8px; }
.overview-links a { display: flex; justify-content: space-between; align-items: center; font-size: .875rem; padding: 14px 0; border-bottom: 1px solid var(--border); }
.overview-links a:hover { color: var(--accent); }
.overview-links .arrow { width: 16px; color: #6c8587; }
.site-footer { background: #203b3e; color: #eaf0ef; }
.footer-main { display: flex; gap: 38px; justify-content: space-between; align-items: center; padding-block: 34px; min-height: 127px; }
.footer-name { font-size: 1rem; font-weight: 500; letter-spacing: .015em; }
.footer-copyright { font-size: .75rem; color: #bacbcd; margin-top: 10px; }
.footer-nav { display: flex; gap: 24px; font-size: .8125rem; color: #d4e0df; }
.footer-nav a:hover { text-decoration: underline; text-underline-offset: 5px; }
.footer-phone { font: 1.375rem var(--font); letter-spacing: .02em; white-space: nowrap; }
.footer-phone span { display: block; font: .75rem var(--font); color: #bacbcd; margin-bottom: 8px; }
.site-footer :focus-visible { outline-color: #d9e8e6; }
.page-banner { height: 228px; position: relative; isolation: isolate; overflow: hidden; background: #e2eef4; }
.banner-image { position: absolute; width: 100%; height: 100%; object-fit: cover; object-position: center 44%; z-index: -2; }
.page-banner::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(235, 245, 248, .86), rgba(229, 241, 247, .1) 75%); z-index: -1; }
.banner-content { padding-top: 59px; }
.banner-content > p { font: .8rem Arial, sans-serif; letter-spacing: .15em; color: #405f6d; }
.banner-content h1 { font-size: 2.3rem; font-weight: 500; letter-spacing: .08em; margin-top: 16px; color: #294c59; }
.breadcrumb-bar { border-bottom: 1px solid var(--border); }
.breadcrumbs { display: flex; align-items: center; min-height: 51px; gap: 16px; color: #697b7e; font-size: .8125rem; }
.breadcrumbs a:hover { color: var(--accent); }
.breadcrumbs [aria-current] { color: #304f53; }
.company-layout { display: grid; grid-template-columns: 190px minmax(0, 1fr); column-gap: 65px; padding-block: 54px 68px; align-items: start; }
.section-sidebar { position: sticky; top: 116px; border: 1px solid var(--border); }
.section-sidebar > p { padding: 20px 22px; color: #fff; background: #285a58; font-size: 1rem; }
.section-sidebar nav { display: grid; }
.section-sidebar nav a { padding: 18px 22px; font-size: .9rem; color: #536b6e; border-bottom: 1px solid var(--border); }
.section-sidebar nav a:last-child { border-bottom: 0; }
.section-sidebar nav a:hover { color: var(--accent); background: #f4f8f7; }
.company-section + .company-section { margin-top: 42px; }
.content-heading { display: flex; align-items: baseline; gap: 18px; border-bottom: 1px solid var(--border); padding-bottom: 17px; margin-bottom: 23px; }
.content-heading h2 { font-size: 1.4rem; font-weight: 500; }
.content-heading > span { font: .75rem Arial, sans-serif; letter-spacing: .05em; color: #606f75; }
.profile-intro { display: grid; grid-template-columns: 1fr 220px; gap: 32px; }
.profile-intro p { font-size: 1rem; line-height: 1.95; color: #5b6f73; }
.profile-intro p + p { margin-top: 15px; }
.profile-art img { height: 161px; width: 100%; object-fit: cover; object-position: 63% center; }
.profile-art figcaption { font-size: .75rem; color: #5a6f72; text-align: right; margin-top: 8px; }
.company-facts > div { display: grid; grid-template-columns: 142px 1fr; font-size: .9375rem; border-bottom: 1px solid #edf0f0; line-height: 1.7; }
.company-facts dt { padding: 14px 18px; color: #607476; background: #f4f7f7; }
.company-facts dd { margin: 0; padding: 14px 21px; }
.principles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 25px; }
.principles > div + div { border-left: 1px solid var(--border); padding-left: 25px; }
.principles h3 { font-size: 1.125rem; color: #2b625a; font-weight: 500; }
.principles p { font-size: .875rem; color: #5f7275; line-height: 1.8; margin-top: 10px; }
.contact-content { display: grid; grid-template-columns: 1fr 1.12fr; gap: 90px; padding-block: 70px 82px; }
.contact-introduction h2 { font-size: 1.8rem; font-weight: 500; margin-top: 16px; }
.contact-introduction > p:last-of-type { font-size: 1rem; line-height: 1.9; color: #62767a; margin-top: 21px; }
.button-outline { color: #2b635c; border-color: #aabfba; margin-top: 27px; }
.button-outline:hover { color: white; background: #285c57; border-color: #285c57; }
.contact-details { border-top: 2px solid #39766e; }
.contact-detail { padding: 24px 0; border-bottom: 1px solid var(--border); }
.detail-label { display: block; font-size: .875rem; color: #5a6d70; }
.contact-number { display: inline-block; margin-top: 12px; font-size: clamp(1.65rem, 2.5vw, 2.1rem); color: #275d57; letter-spacing: .015em; }
.contact-number:hover { text-decoration: underline; text-underline-offset: 6px; }
.contact-address { font-size: 1.08rem; margin-top: 14px; line-height: 1.7; }

@media (min-width: 1600px) {
  .home-hero { min-height: 530px; }
  .hero-content { padding-block: 86px 80px; }
}
@media (max-width: 1080px) {
  .container { width: calc(100% - 64px); }
  .home-overview { gap: 32px; grid-template-columns: .75fr 1.5fr .8fr; }
  .company-layout { grid-template-columns: 170px minmax(0, 1fr); gap: 36px; }
  .profile-intro { grid-template-columns: 1fr 180px; gap: 23px; }
  .contact-content { gap: 55px; }
  .footer-main { gap: 24px; }
  .footer-nav { gap: 18px; }
}
@media (max-width: 760px) {
  html { scroll-padding-top: 96px; }
  .container { width: calc(100% - 40px); }
  .header-inner { min-height: 72px; flex-wrap: wrap; gap: 0; }
  .brand { gap: 7px; }
  .brand img { width: 39px; height: 39px; }
  .brand strong { font-size: 1.18rem; }
  .brand small { font-size: .75rem; letter-spacing: .01em; }
  /* 无脚本时导航完整可见，脚本只增强窄屏折叠，不负责页面内容。 */
  #main-nav { width: 100%; gap: 0; justify-content: space-between; min-height: 53px; }
  #main-nav a { padding: 12px 16px 14px; font-size: .875rem; }
  .menu-toggle:not([hidden]) { display: block; padding: 11px 15px; background: #fff; border: 1px solid #cad6d7; color: #365a5a; font-size: .875rem; }
  .home-hero { min-height: 465px; }
  .hero-image { object-position: 56% center; }
  .home-hero::after { background: linear-gradient(90deg, rgba(236, 246, 250, .94), rgba(235, 245, 250, .45) 56%, rgba(235, 245, 250, .1)); }
  .hero-content { padding-block: 60px 70px; }
  .home-hero h1 { font-size: clamp(2.3rem, 8.5vw, 3.3rem); margin-top: 20px; }
  .hero-intro { font-size: 1rem; max-width: 15em; }
  .home-overview { grid-template-columns: 1fr; gap: 25px; padding-block: 43px 40px; }
  .overview-title h2 { font-size: 1.55rem; margin-top: 10px; }
  .heading-rule { margin-top: 17px; }
  .overview-copy p { margin: 0; }
  .text-link { margin-top: 13px; }
  .overview-links { grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--border); margin-top: 0; padding-top: 8px; gap: 20px; }
  .overview-links a { font-size: .8125rem; gap: 8px; }
  .overview-links .arrow { width: 12px; }
  .footer-main { flex-wrap: wrap; gap: 25px; padding-block: 29px; }
  .footer-main > div { width: 100%; }
  .footer-name { font-size: .9375rem; }
  .footer-phone { font-size: 1.12rem; }
  .footer-phone span { margin-bottom: 6px; }
  .footer-nav { font-size: .8125rem; gap: 17px; }
  .page-banner { height: 175px; }
  .banner-content { padding-top: 43px; }
  .banner-content h1 { font-size: 1.9rem; margin-top: 13px; }
  .banner-image { object-position: 55% center; }
  .breadcrumbs { min-height: 47px; }
  .company-layout { grid-template-columns: 1fr; gap: 29px; padding-block: 25px 46px; }
  .section-sidebar { position: static; border: 0; }
  .section-sidebar > p { display: none; }
  .section-sidebar nav { display: flex; border-bottom: 1px solid var(--border); justify-content: space-between; }
  .section-sidebar nav a { padding: 13px 9px; border: 0; font-size: .875rem; }
  .company-section + .company-section { margin-top: 35px; }
  .content-heading { gap: 12px; flex-wrap: wrap; padding-bottom: 14px; margin-bottom: 20px; }
  .content-heading h2 { font-size: 1.25rem; }
  .content-heading > span { font-size: .75rem; }
  .profile-intro { grid-template-columns: 1fr; gap: 22px; }
  .profile-art img { width: 100%; height: 210px; object-position: 62% 58%; }
  .company-facts > div { grid-template-columns: 96px 1fr; font-size: .875rem; }
  .company-facts dt { padding: 13px 11px; }
  .company-facts dd { padding: 13px 14px; }
  .principles { gap: 15px; }
  .principles > div + div { padding-left: 15px; }
  .principles h3 { font-size: 1.0625rem; }
  .principles p { font-size: .875rem; }
  .contact-content { grid-template-columns: 1fr; gap: 36px; padding-block: 40px 42px; }
  .contact-introduction h2 { font-size: 1.55rem; margin-top: 13px; }
  .contact-introduction > p:last-of-type { margin-top: 16px; }
  .contact-introduction .button { margin-top: 20px; }
  .contact-detail { padding-block: 22px; }
  .contact-number { font-size: 1.75rem; }
  .contact-address { font-size: 1rem; }
}
@media (max-width: 360px) {
  .container { width: calc(100% - 32px); }
  .overview-links { gap: 12px; }
  .overview-links .arrow { display: none; }
  .principles { grid-template-columns: 1fr; gap: 20px; }
  .principles > div + div { border-left: 0; padding-left: 0; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}