:root {
  --ink: #222b2a;
  --muted: #727a78;
  --green: #187b67;
  --green-dark: #125d4e;
  --line: #e4e9e6;
  --soft: #f4f7f5;
  --font: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body { margin: 0; background: #fff; color: var(--ink); font-family: var(--font); font-size: 14px; line-height: 1.75; letter-spacing: 0; -webkit-font-smoothing: antialiased; }
body.dialog-open { overflow: hidden; }
button, input, textarea, select { font: inherit; letter-spacing: 0; }
button, a, input, textarea, select { -webkit-tap-highlight-color: transparent; }
button, a { touch-action: manipulation; }
button { color: inherit; cursor: pointer; }
button { border: 0; }
button:disabled { cursor: default; }
a { color: inherit; text-decoration: none; }
button, a { transition: color .2s, background-color .2s, border-color .2s, box-shadow .2s; }
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, [tabindex]:focus-visible { outline: 3px solid #78bbaa; outline-offset: 5px; }
::selection { background: #cbe5d9; color: var(--ink); }
h1, h2, h3, p { margin: 0; }
img { max-width: 100%; }
svg { width: 20px; height: 20px; flex-shrink: 0; stroke-width: 1.65; }
[hidden] { display: none !important; }
.container { width: min(1184px, calc(100% - 112px)); margin-inline: auto; }
.skip-link { position: fixed; top: -80px; left: 20px; z-index: 100; padding: 10px 20px; color: #fff; background: var(--green); }
.skip-link:focus { top: 12px; }
.site-header { position: sticky; top: 0; z-index: 30; background: rgba(255, 255, 255, .97); border-bottom: 1px solid rgba(228, 233, 230, .8); }
.header-inner { height: 86px; display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.brand { display: inline-flex; align-items: center; gap: 11px; flex-shrink: 0; }
.brand-mark { display: grid; place-items: center; width: 41px; height: 41px; background: var(--green); border-radius: 8px; color: white; }
.brand-mark svg { width: 28px; height: 28px; stroke-width: 2; }
.brand-name { font-size: 20px; line-height: 1.5; font-weight: 700; }
.brand-name > span { display: block; font-size: 9px; font-family: Arial, sans-serif; font-weight: 500; line-height: 1.35; color: #697471; }
.desktop-nav { display: flex; gap: 36px; margin-left: auto; align-self: stretch; }
.desktop-nav a { position: relative; display: flex; align-items: center; color: #636c69; font-size: 13px; white-space: nowrap; }
.desktop-nav a:hover, .desktop-nav a.is-active { color: var(--green); }
.desktop-nav a.is-active::after { content: ""; position: absolute; width: 15px; height: 2px; background: var(--green); bottom: 20px; left: calc(50% - 7.5px); }
.icon-button { position: relative; display: inline-grid; place-items: center; width: 42px; height: 42px; border-radius: 4px; background: transparent; flex-shrink: 0; }
.icon-button:hover { background: rgba(128, 145, 137, .12); }
.menu-toggle { display: none; }
.mobile-nav { border-top: 1px solid var(--line); background: #fff; padding: 12px 24px 20px; box-shadow: 0 16px 24px #18382a0b; }
.mobile-nav a { padding: 12px 8px; display: flex; justify-content: space-between; }
.hero { position: relative; overflow: hidden; height: min(638px, calc(100svh - 176px)); min-height: 480px; display: flex; flex-direction: column; justify-content: center; text-align: center; background: #eef1ee; isolation: isolate; }
.hero-image { position: absolute; width: 100%; height: 100%; max-width: none; object-fit: cover; object-position: 50% 37%; z-index: -3; filter: grayscale(1); }
.hero-wash { position: absolute; inset: 0; background: rgba(249, 251, 248, .87); z-index: -2; }
.hero-content { padding-bottom: 34px; }
.eyebrow { display: flex; align-items: center; gap: 12px; color: var(--green); font-size: 10px; font-weight: 500; line-height: 1.5; font-family: Arial, var(--font); }
.hero-eyebrow { justify-content: center; font-family: var(--font); font-size: 12px; gap: 9px; margin-bottom: 22px; }
.status-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--green); }
.hero h1 { font-size: 76px; line-height: 1.22; font-weight: 600; }
.hero-slogan { font-size: 29px; font-weight: 500; margin-top: 17px; line-height: 1.65; }
.hero-slogan > span { color: var(--green); }
.hero-description { color: #69736f; font-size: 14px; line-height: 2; margin-top: 20px; }
.hero-actions { display: flex; justify-content: center; align-items: center; gap: 20px; margin-top: 31px; }
.button { display: inline-flex; justify-content: center; align-items: center; gap: 25px; border: 1px solid transparent; min-height: 47px; padding: 12px 23px; border-radius: 4px; font-size: 13px; font-weight: 500; white-space: nowrap; }
.button svg { width: 17px; height: 17px; }
.button-primary { color: #fff; background: var(--green); }
.button-primary:hover { background: var(--green-dark); }
.hero-foot { position: absolute; bottom: 21px; left: 0; right: 0; display: flex; align-items: center; justify-content: space-between; color: #6e7873; font-size: 11px; }
.hero-foot > span:first-child { display: flex; gap: 6px; align-items: center; }
.hero-foot svg { width: 14px; height: 14px; }
.hero-foot-center { font-size: 9px; font-family: Arial, sans-serif; }
.hero-foot > a { display: grid; place-items: center; width: 32px; height: 32px; border: 1px solid #99aba065; border-radius: 50%; }
.hero-foot > a:hover { background: #fff; }
.section { padding-block: 88px; }
.section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 30px; margin-bottom: 42px; }
.section-index { color: #98a49e; padding-right: 12px; border-right: 1px solid #cbd5ce; }
h2 { font-size: 29px; line-height: 1.55; font-weight: 600; }
.section-heading h2, .about-heading h2 { margin-top: 15px; }
.section-intro { font-size: 12px; color: var(--muted); line-height: 1.95; padding-bottom: 3px; }
.service-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.service { position: relative; padding: 12px 28px 12px; border-left: 1px solid var(--line); }
.service:first-child { border-left: 0; padding-left: 0; }
.service:last-child { padding-right: 0; }
.service-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 23px; }
.service-icon { width: 46px; height: 46px; display: grid; place-items: center; border-radius: 6px; }
.service-icon svg { width: 24px; height: 24px; stroke-width: 1.6; }
.icon-teal { color: #227a65; background: #edf5ef; }
.icon-blue { color: #5879a4; background: #eef2f8; }
.icon-amber { color: #a58643; background: #f9f5e9; }
.icon-charcoal { color: #626b67; background: #f0f2f0; }
.service-number { color: #c6ceca; font-size: 12px; font-family: Arial, sans-serif; }
.service h3 { font-size: 18px; font-weight: 600; margin-bottom: 12px; }
.service > p { color: var(--muted); font-size: 12px; line-height: 1.9; min-height: 69px; }
.service-tags { display: block; color: #858d89; font-size: 10px; margin-top: 16px; line-height: 1.8; }
.text-link { background: transparent; display: inline-flex; gap: 17px; padding: 0; align-items: center; color: var(--green); font-size: 12px; min-height: 40px; }
.text-link:hover { color: #103f32; }
.text-link svg { width: 16px; height: 16px; transition: transform .2s; }
.text-link:hover svg { transform: translate(2px, -2px); }
.service .text-link { margin-top: 17px; }
.solutions { background: var(--soft); }
.section-note { font-size: 12px; color: #8a948e; }
.solution-tabs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-bottom: 1px solid #dce4de; }
.solution-tabs button { display: flex; align-items: center; gap: 15px; padding: 18px 20px; position: relative; background: transparent; text-align: left; font-size: 15px; color: #79857d; }
.solution-tabs button:first-child { padding-left: 0; }
.solution-tabs button span { font-family: Arial, sans-serif; font-size: 11px; color: #9aa69e; }
.solution-tabs button svg { width: 16px; height: 16px; margin-left: auto; margin-right: 16px; }
.solution-tabs button[aria-selected="true"] { color: var(--green); font-weight: 600; }
.solution-tabs button[aria-selected="true"]::after { content: ""; height: 2px; position: absolute; left: 0; bottom: -1px; right: 0; background: var(--green); }
.solution-tabs button:hover { color: var(--green); background: #eaf0ec; }
.solution-panel { display: grid; grid-template-columns: .9fr 1.1fr; gap: 84px; align-items: center; padding-top: 46px; }
.solution-label { font-size: 11px; color: var(--green); margin-bottom: 10px; }
.solution-copy h3 { font-size: 26px; line-height: 1.6; font-weight: 500; min-height: 84px; }
.solution-copy > p:not(.solution-label) { font-size: 12px; color: var(--muted); line-height: 2; margin-top: 15px; min-height: 72px; }
.check-list { list-style: none; padding: 0; margin: 18px 0 12px; }
.check-list li { display: flex; gap: 9px; align-items: flex-start; color: #5d6d63; font-size: 12px; margin: 6px 0; }
.check-list svg { color: var(--green); width: 15px; height: 20px; }
.solution-visual { min-width: 0; background: #fff; border: 1px solid #e0e7e2; border-radius: 6px; padding: 23px 27px 19px; }
.visual-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-bottom: 18px; border-bottom: 1px solid #edf0ed; font-size: 10px; color: #929d96; }
.visual-mark { display: inline-flex; align-items: center; gap: 7px; color: #53675b; font-family: Arial, sans-serif; font-size: 9px; }
.visual-mark svg { width: 19px; height: 19px; color: var(--green); }
.flow { display: grid; grid-template-columns: 1fr 22px 1fr 22px 1fr; gap: 8px; align-items: start; text-align: center; padding: 44px 0 39px; }
.flow-node { min-width: 0; }
.flow-node > span { margin: 0 auto; width: 54px; height: 54px; background: #f2f5f2; color: #809184; display: grid; place-items: center; border-radius: 8px; }
.flow-node > span > svg { width: 26px; height: 26px; }
.flow-node strong { font-size: 12px; font-weight: 500; display: block; margin-top: 13px; }
.flow-node small { font-size: 9px; color: #94a098; display: block; margin-top: 4px; }
.flow-core > span { background: var(--green); color: #fff; box-shadow: 0 6px 16px #187b671a; }
.flow-arrow { color: #b6c5bc; width: 20px; height: 20px; margin-top: 17px; }
.visual-bottom { display: flex; justify-content: space-between; gap: 8px; border-top: 1px solid #edf0ed; padding-top: 16px; }
.visual-bottom > span { display: flex; gap: 5px; align-items: center; font-size: 9px; color: #86958b; }
.visual-bottom svg { width: 13px; height: 13px; }
.about-layout { display: grid; grid-template-columns: 1fr 1.1fr; gap: 95px; }
.about-heading h2 { font-size: 34px; line-height: 1.6; }
.about-location { display: flex; align-items: center; gap: 7px; font-size: 12px; margin-top: 20px; color: var(--muted); }
.about-location svg { width: 14px; height: 14px; }
.about-copy { padding-top: 8px; }
.about-copy > p { font-size: 13px; line-height: 2.1; color: var(--muted); margin-bottom: 15px; }
.about-copy .about-lead { font-size: 19px; color: var(--ink); margin-bottom: 17px; }
.principles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--line); padding-top: 24px; margin-top: 27px; }
.principles > div { border-right: 1px solid var(--line); padding-left: 22px; }
.principles > div:first-child { padding-left: 0; }
.principles > div:last-child { border-right: 0; }
.principles span { font-size: 10px; color: #96a39b; font-family: Arial, sans-serif; }
.principles h3 { font-size: 17px; font-weight: 500; margin-top: 5px; }
.principles p { font-size: 11px; color: var(--muted); margin-top: 5px; }
.site-footer { padding-top: 38px; border-top: 1px solid var(--line); }
.footer-top { display: flex; align-items: center; gap: 30px; padding-bottom: 31px; }
.footer-top .brand-mark { width: 34px; height: 34px; border-radius: 6px; }
.footer-top .brand-mark svg { width: 24px; height: 24px; }
.footer-top .brand-name { font-size: 16px; }
.footer-top .brand-name > span { font-size: 8px; }
.footer-top > p { color: #939c96; font-size: 11px; }
.back-to-top { display: flex; align-items: center; gap: 11px; margin-left: auto; font-size: 11px; color: #68766d; }
.back-to-top svg { width: 16px; height: 16px; }
.back-to-top:hover { color: var(--green); }
.footer-bottom { padding-block: 20px; display: flex; align-items: center; justify-content: space-between; gap: 20px; border-top: 1px solid var(--line); color: #939b96; font-size: 10px; }
.footer-links { display: flex; align-items: center; gap: 20px; flex-shrink: 0; }
.footer-link { display: flex; gap: 6px; align-items: center; padding: 0; background: transparent; color: #939b96; font-size: 10px; white-space: nowrap; min-height: 28px; }
.footer-link svg { width: 12px; height: 12px; }
.footer-link:hover { color: var(--green); }
.dialog { color: var(--ink); width: min(540px, calc(100% - 32px)); max-height: calc(100svh - 48px); border: 1px solid var(--line); border-radius: 8px; padding: 27px 32px 32px; overscroll-behavior: contain; box-shadow: 0 25px 80px #172c302b; }
.dialog::backdrop { background: #10272073; backdrop-filter: blur(4px); }
.dialog-top { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-top: -6px; margin-bottom: 10px; }
.dialog-top .icon-button { margin-right: -12px; }
.dialog h2 { font-size: 24px; line-height: 1.5; }
.detail-content { margin: 21px 0 25px; color: #6b766f; font-size: 13px; line-height: 2; }
.detail-content p + p { margin-top: 14px; }
.detail-content ul { padding-left: 20px; }
.detail-content h3 { font-size: 14px; font-weight: 500; color: var(--ink); margin-top: 18px; }
.project-dialog { width: min(650px, calc(100% - 32px)); }
.dialog-intro { font-size: 12px; color: var(--muted); margin: 10px 0 25px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
form label { display: block; font-size: 12px; color: #54645a; margin-bottom: 19px; }
form label > span { color: var(--green); }
input, select, textarea { display: block; width: 100%; min-width: 0; border: 1px solid #dbe3dd; border-radius: 4px; background: #fff; color: var(--ink); font-size: 13px; padding: 10px 12px; margin-top: 7px; }
input, select { height: 44px; }
textarea { resize: vertical; min-height: 125px; max-height: 300px; }
input::placeholder, textarea::placeholder { color: #a0aaa3; }
.form-privacy { display: flex; gap: 7px; align-items: flex-start; font-size: 11px; color: #89958d; margin: 4px 0 20px; }
.form-privacy svg { width: 15px; height: 18px; }
.form-submit { width: 100%; }
.toast { position: fixed; bottom: 30px; left: 50%; transform: translateX(-50%); z-index: 80; padding: 13px 22px; background: #243e32; color: #fff; border-radius: 6px; box-shadow: 0 8px 30px #1b3d2926; max-width: calc(100% - 40px); font-size: 13px; text-align: center; }

@media (min-width: 1700px) {
  .container { width: min(1320px, calc(100% - 160px)); }
  .hero { max-height: 660px; }
}
@media (max-width: 1100px) {
  .container { width: calc(100% - 72px); }
  .desktop-nav { gap: 24px; }
  .header-inner { gap: 24px; }
  .service { padding-inline: 20px; }
  .service h3 { font-size: 16px; }
  .service > p { min-height: 91px; }
  .service-tags { font-size: 9px; }
  .solution-panel { gap: 45px; }
  .solution-visual { padding-inline: 18px; }
  .flow { gap: 3px; }
  .about-layout { gap: 60px; }
}
@media (max-width: 850px) {
  .container { width: calc(100% - 48px); }
  .header-inner { height: 74px; }
  .desktop-nav { display: none; }
  .menu-toggle { display: inline-grid; margin-left: auto; }
  .hero { min-height: 480px; }
  .hero h1 { font-size: 64px; }
  .section { padding-block: 65px; }
  .section-heading { align-items: flex-start; }
  h2 { font-size: 25px; }
  .section-intro { max-width: 230px; }
  .service-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 32px; }
  .service { padding: 8px 28px 15px; }
  .service:nth-child(odd) { border-left: 0; padding-left: 0; }
  .service:nth-child(even) { padding-right: 0; }
  .service h3 { font-size: 18px; }
  .service > p { min-height: 46px; }
  .service-tags { font-size: 10px; }
  .service .text-link { margin-top: 10px; }
  .solution-panel { grid-template-columns: 1fr; gap: 30px; }
  .solution-copy h3 { min-height: 0; font-size: 25px; }
  .solution-copy > p:not(.solution-label) { min-height: 0; max-width: 600px; }
  .solution-visual { max-width: 620px; width: 100%; }
  .flow { padding-block: 32px; grid-template-columns: 1fr 30px 1fr 30px 1fr; }
  .flow-node strong { font-size: 13px; }
  .flow-node small { font-size: 10px; }
  .about-layout { grid-template-columns: .9fr 1.1fr; gap: 40px; }
  .about-heading h2 { font-size: 30px; }
  .principles > div { padding-left: 12px; }
  .principles p { font-size: 10px; }
}
@media (max-width: 600px) {
  html { scroll-padding-top: 83px; }
  .container { width: calc(100% - 40px); }
  .header-inner { height: 68px; gap: 15px; }
  .brand { gap: 8px; }
  .brand-mark { width: 35px; height: 35px; border-radius: 6px; }
  .brand-mark svg { width: 25px; height: 25px; }
  .brand-name { font-size: 18px; }
  .brand-name > span { font-size: 8px; }
  .menu-toggle { width: 34px; }
  .hero { height: min(590px, calc(100svh - 170px)); min-height: 410px; }
  .hero-image { object-position: 51% 36%; }
  .hero-wash { background: rgba(249, 251, 248, .9); }
  .hero-content { padding-bottom: 21px; }
  .hero-eyebrow { font-size: 10px; margin-bottom: 22px; }
  .hero h1 { font-size: 53px; }
  .hero-slogan { font-size: 20px; margin-top: 16px; }
  .hero-description { font-size: 11px; line-height: 2; margin-top: 19px; }
  .hero-actions { gap: 6px; margin-top: 26px; }
  .hero-actions .button { font-size: 11px; gap: 13px; padding: 11px 15px; min-height: 44px; }
  .hero-actions .button svg { width: 15px; height: 15px; }
  .hero-foot { bottom: 16px; font-size: 9px; }
  .hero-foot-center { display: none; }
  .hero-foot > a { width: 28px; height: 28px; }
  .section { padding-block: 49px; }
  .eyebrow { font-size: 9px; gap: 9px; }
  .section-index { padding-right: 9px; }
  .section-heading { display: block; margin-bottom: 27px; }
  h2 { font-size: 23px; line-height: 1.6; }
  .section-heading h2 { margin-top: 12px; }
  .section-intro { max-width: none; font-size: 11px; margin-top: 15px; }
  .service-grid { row-gap: 22px; }
  .service { padding: 10px 15px 14px; }
  .service-top { margin-bottom: 18px; }
  .service-icon { width: 40px; height: 40px; }
  .service-icon svg { width: 22px; height: 22px; }
  .service-number { font-size: 10px; }
  .service h3 { font-size: 15px; margin-bottom: 11px; }
  .service > p { font-size: 11px; min-height: 84px; line-height: 1.9; }
  .service-tags { font-size: 9px; min-height: 33px; line-height: 1.9; margin-top: 10px; }
  .service .text-link { font-size: 11px; margin-top: 8px; }
  .section-note { display: block; margin-top: 12px; font-size: 11px; }
  .solution-tabs button { font-size: 12px; padding: 15px 7px; gap: 5px; justify-content: center; white-space: nowrap; }
  .solution-tabs button:first-child { padding-left: 0; }
  .solution-tabs button span { font-size: 9px; }
  .solution-tabs button svg { display: none; }
  .solution-panel { padding-top: 28px; }
  .solution-copy h3 { font-size: 24px; }
  .solution-copy > p:not(.solution-label) { font-size: 12px; }
  .solution-visual { padding: 17px 14px 15px; }
  .flow { gap: 0; grid-template-columns: 1fr 19px 1fr 19px 1fr; }
  .flow-node > span { width: 46px; height: 46px; }
  .flow-node > span > svg { width: 22px; height: 22px; }
  .flow-arrow { width: 17px; height: 17px; margin-top: 15px; }
  .flow-node strong { font-size: 11px; }
  .flow-node small { font-size: 9px; }
  .visual-bottom > span { font-size: 9px; gap: 4px; }
  .about-layout { grid-template-columns: 1fr; gap: 22px; }
  .about-heading h2 { font-size: 30px; }
  .about-location { margin-top: 16px; }
  .about-copy { padding-top: 0; }
  .about-copy .about-lead { font-size: 17px; }
  .about-copy > p { font-size: 12px; }
  .principles { margin-top: 24px; }
  .principles > div { padding-left: 18px; }
  .principles p { font-size: 10px; }
  .site-footer { padding-top: 27px; }
  .footer-top { flex-wrap: wrap; gap: 15px; padding-bottom: 23px; }
  .footer-top > p { display: none; }
  .footer-bottom { font-size: 9px; gap: 10px; align-items: flex-start; flex-wrap: wrap; padding-block: 15px; }
  .footer-bottom > p { width: 100%; line-height: 1.8; }
  .footer-links { width: 100%; justify-content: space-between; }
  .footer-link { font-size: 9px; min-height: 20px; }
  .footer-link svg { display: none; }
  .dialog { padding: 20px 22px 25px; max-height: calc(100svh - 30px); }
  .dialog h2 { font-size: 22px; }
  .detail-content { font-size: 12px; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  input, select, textarea { font-size: 16px; }
}
@media (max-width: 360px) {
  .container { width: calc(100% - 32px); }
  .header-inner { gap: 10px; }
  .hero h1 { font-size: 46px; }
  .hero-slogan { font-size: 18px; }
  .hero-description { font-size: 10px; }
  .hero-actions .button { font-size: 10px; gap: 8px; }
  h2 { font-size: 21px; }
  .service { padding-inline: 11px; }
  .service h3 { font-size: 14px; }
  .service > p { min-height: 105px; }
  .flow-node small { font-size: 8px; }
  .visual-bottom > span { font-size: 8px; }
  .principles > div { padding-left: 12px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}