:root {
  --bg: #f4f5f2;
  --paper: #ffffff;
  --ink: #151918;
  --soft-ink: #3f4744;
  --muted: #737b77;
  --line: #d7dcd8;
  --accent: #0b9d91;
  --accent-soft: #bce5dc;
  --warm: #ed7557;
  --dark: #151b1a;
  --sans: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --serif: "Songti SC", "STSong", "Noto Serif SC", "Source Han Serif SC", serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body { margin: 0; overflow-x: hidden; background: var(--bg); color: var(--ink); font-family: var(--sans); font-size: 16px; line-height: 1.7; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
p, h1, h2, h3, li, dt, dd { max-width: 100%; white-space: normal; overflow-wrap: anywhere; }
button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }
::selection { background: var(--ink); color: var(--bg); }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 16px; z-index: 50; background: var(--ink); color: var(--bg); padding: 8px 12px; }
.wrap { width: min(1180px, 88vw); margin: 0 auto; }
.site-header { position: sticky; top: 0; z-index: 30; border-bottom: 1px solid transparent; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(18px); }
.site-header.is-scrolled { border-bottom-color: var(--line); }
.header-inner { width: min(1180px, 88vw); min-height: 76px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: flex; align-items: center; gap: 12px; flex: 0 0 auto; font-size: 20px; font-weight: 650; letter-spacing: 0; }
.brand img { width: 40px; height: 40px; display: block; }
.brand small { display: block; margin-top: 0; color: var(--muted); font-size: 10px; font-weight: 400; letter-spacing: 0; }
.site-nav { display: flex; align-items: center; gap: 22px; font-size: 13px; }
.site-nav a { position: relative; padding: 5px 0; color: #3a3a36; white-space: nowrap; }
.site-nav a::after { content: ""; position: absolute; right: 0; bottom: 0; left: 0; height: 1px; background: var(--ink); transform: scaleX(0); transform-origin: left; transition: transform .2s; }
.site-nav a:hover::after, .site-nav a[aria-current="page"]::after { transform: scaleX(1); }
.header-actions { display: flex; align-items: center; gap: 14px; flex: 0 0 auto; }
.lang { border: 0; background: none; color: var(--muted); font-size: 11px; letter-spacing: 0; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 42px; border: 1px solid var(--ink); background: var(--ink); color: var(--bg); padding: 9px 18px; font-size: 13px; letter-spacing: 0; transition: background .2s, color .2s, border-color .2s, transform .2s; }
.btn:hover { background: var(--accent); border-color: var(--accent); transform: translateY(-1px); }
.btn.ghost { background: transparent; color: var(--ink); }
.text-link { display: inline-flex; align-items: center; gap: 8px; border-bottom: 1px solid currentColor; font-size: 13px; }
.eyebrow { margin: 0 0 22px; color: var(--accent); font-size: 11px; font-weight: 650; letter-spacing: 0; }
.page-hero { position: relative; padding: 92px 0 84px; display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(280px, .65fr); gap: 72px; align-items: end; color: #f5f7f5; background: var(--dark); box-shadow: 0 0 0 100vmax var(--dark); clip-path: inset(0 -100vmax); overflow: hidden; }
.page-hero::after { content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .22; background-image: linear-gradient(#fff 1px, transparent 1px), linear-gradient(90deg, #fff 1px, transparent 1px); background-size: 72px 72px; mask-image: linear-gradient(90deg, transparent, #000 60%); }
.page-hero > *, .section-head > *, .service-row > *, .callout > *, .contact-layout > * { min-width: 0; }
.page-hero > * { position: relative; z-index: 1; }
.page-hero h1 { margin: 0 0 24px; max-width: 800px; font-family: var(--sans); font-size: clamp(46px, 6vw, 78px); font-weight: 680; line-height: 1.08; letter-spacing: 0; }
.page-hero h1, .page-hero .lede, .section-head h2, .section-head p, .callout h2, .contact-copy h1 { overflow-wrap: anywhere; }
.page-hero .lede { max-width: 680px; margin: 0; color: #b8c2bd; font-size: 16px; }
.hero-index { border-left: 1px solid #ffffff2b; padding: 26px 0 26px 36px; }
.hero-index dl { margin: 0; display: grid; grid-template-columns: 80px 1fr; gap: 11px 18px; font-size: 13px; }
.hero-index dt { color: #87938d; }
.hero-index dd { margin: 0; }
.section { padding: 92px 0; border-bottom: 1px solid var(--line); }
.section-head { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 56px; margin-bottom: 42px; }
.section-head h2 { margin: 0; font-family: var(--sans); font-size: clamp(30px, 4vw, 48px); font-weight: 670; line-height: 1.18; letter-spacing: 0; }
.section-head p { max-width: 620px; margin: 7px 0 0; color: var(--soft-ink); }
.service-list { border-top: 1px solid var(--line); }
.service-row { position: relative; display: grid; grid-template-columns: 64px minmax(0, 1fr) minmax(240px, .62fr); gap: 28px; padding: 36px 18px 36px 0; border-bottom: 1px solid var(--line); transition: padding .2s, background .2s; }
.service-row::before { content: ""; position: absolute; top: 0; bottom: 0; left: -16px; width: 3px; background: var(--accent); transform: scaleY(0); transition: transform .2s; }
.service-row:hover { padding-left: 12px; background: color-mix(in srgb, var(--paper) 55%, transparent); }
.service-row:hover::before { transform: scaleY(1); }
.service-row .num { padding-top: 4px; color: var(--accent); font-family: var(--sans); font-size: 14px; font-weight: 650; }
.service-row h3 { margin: 0 0 8px; font-size: 24px; font-weight: 600; }
.service-row p { margin: 0; color: var(--soft-ink); }
.service-row ul { margin: 0; padding: 0; list-style: none; }
.service-row li { padding: 7px 0; border-top: 1px solid var(--line); font-size: 13px; }
.service-row li:last-child { border-bottom: 1px solid var(--line); }
.grid-3, .grid-2, .plans { display: grid; border-top: 1px solid var(--line); border-left: 1px solid var(--line); background: var(--paper); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-2, .plans { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.panel, .plan { min-height: 190px; padding: 28px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); transition: background .2s; }
.panel:hover, .plan:hover { background: #eef6f2; }
.panel h3, .plan h3 { margin: 0 0 10px; font-size: 18px; }
.panel p, .plan p { margin: 0; color: var(--soft-ink); }
.panel .tag { display: block; margin-bottom: 42px; color: var(--accent); font-size: 11px; font-weight: 650; letter-spacing: 0; }
.plan { display: flex; flex-direction: column; align-items: flex-start; min-height: 290px; }
.plan .price { margin: 10px 0 16px; color: var(--ink); font-family: var(--serif); font-size: 32px; }
.plan .btn { margin-top: auto; }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); }
.step { padding: 26px 28px 12px 0; }
.step .num { display: block; width: 34px; height: 34px; margin-bottom: 30px; border: 1px solid var(--line); color: var(--accent); display: grid; place-items: center; font-family: var(--sans); font-size: 12px; }
.step h3 { margin: 0 0 8px; }
.step p { margin: 0; color: var(--soft-ink); font-size: 14px; }
.callout { display: grid; grid-template-columns: 1.2fr .8fr; gap: 56px; align-items: end; }
.callout h2 { margin: 0; font-family: var(--sans); font-size: clamp(32px, 4.5vw, 54px); font-weight: 680; line-height: 1.12; }
.callout p { margin: 0 0 22px; color: var(--soft-ink); }
.note { color: var(--muted); font-size: 12px; }
.contact-layout { position: relative; display: grid; grid-template-columns: .7fr 1.3fr; gap: 72px; min-height: calc(100vh - 190px); padding: 84px 0 96px; }
.contact-layout::before { content: ""; position: absolute; z-index: -1; inset: 0; opacity: .42; pointer-events: none; background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px); background-size: 72px 72px; mask-image: linear-gradient(90deg, transparent, #000 72%, transparent); }
.contact-copy h1 { margin: 0 0 22px; font-family: var(--sans); font-size: clamp(42px, 5vw, 68px); font-weight: 680; line-height: 1.08; }
.contact-copy p { color: var(--soft-ink); }
.contact-form { align-self: start; display: grid; align-content: start; gap: 17px; padding: 34px 34px 38px 52px; border: 1px solid var(--line); border-top: 3px solid var(--accent); background: color-mix(in srgb, var(--paper) 90%, transparent); }
label { display: grid; gap: 7px; font-size: 13px; }
input, textarea, select { width: 100%; border: 1px solid var(--line); border-radius: 0; background: #fff; padding: 12px; transition: border-color .2s, box-shadow .2s; }
input:focus, textarea:focus, select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px #0b9d9118; outline: 0; }
textarea { resize: vertical; min-height: 128px; }
.site-footer { margin-top: 0; border-top: 1px solid var(--line); background: #edf0ee; color: var(--soft-ink); }
.footer-main { display: grid; grid-template-columns: minmax(220px, .8fr) minmax(0, 1.2fr); gap: 56px; padding: 48px 0 42px; }
.footer-brand { display: inline-flex; align-items: center; align-self: start; gap: 13px; width: fit-content; }
.footer-brand img { display: block; width: 44px; height: 44px; }
.footer-brand strong { display: block; color: var(--ink); font-size: 19px; font-weight: 650; line-height: 1.35; }
.footer-brand small { display: block; margin-top: 3px; color: var(--muted); font-size: 11px; }
.footer-nav { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px 48px; }
.footer-group { display: grid; align-content: start; justify-items: start; gap: 8px; }
.footer-group h2 { margin: 0 0 5px; color: var(--ink); font-size: 13px; font-weight: 620; }
.footer-group a { color: var(--muted); font-size: 12px; transition: color .18s; }
.footer-group a:hover, .footer-records a:hover { color: var(--accent); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap; padding: 18px 0 22px; border-top: 1px solid #d4dbd6; color: var(--muted); font-size: 11px; }
.footer-records { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
.footer-records a { display: inline-flex; align-items: center; gap: 6px; white-space: nowrap; transition: color .18s; }
.footer-records img { display: block; width: 16px; height: 18px; }
@media (max-width: 760px) {
  .footer-main { grid-template-columns: 1fr; gap: 30px; padding: 36px 0 30px; }
  .footer-nav { gap: 26px 20px; }
  .footer-bottom { align-items: flex-start; flex-direction: column; }
  .footer-records { gap: 10px 20px; }
}
@media (max-width: 420px) {
  .footer-nav { grid-template-columns: 1fr 1fr; gap: 24px 14px; }
  .footer-records { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 920px) {
  .site-nav { display: none; }
  .page-hero, .section-head, .callout, .contact-layout { grid-template-columns: 1fr; gap: 28px; }
  .hero-index, .contact-form { padding: 26px 0 0; border-left: 0; border-top: 1px solid var(--line); }
  .grid-3, .steps { grid-template-columns: 1fr 1fr; }
  .service-row { grid-template-columns: 46px minmax(0, 1fr); }
  .service-row ul { grid-column: 2; }
}
@media (max-width: 620px) {
  .wrap, .header-inner { width: min(90vw, 1120px); }
  .header-inner { min-height: 68px; }
  .brand { font-size: 19px; }
  .brand img { width: 36px; height: 36px; }
  .header-actions .btn { display: none; }
  .page-hero { padding: 52px 0; }
  .page-hero, .section-head, .service-row, .callout, .contact-layout { width: 100%; min-width: 0; overflow: hidden; }
  .page-hero > *, .section-head > *, .service-row > *, .callout > *, .contact-layout > * { width: 100%; min-width: 0; max-width: 100%; }
  .page-hero h1 { font-size: 38px; line-height: 1.18; }
  .page-hero .lede { font-size: 15px; }
  p, h1, h2, h3, li, dt, dd { max-width: 100%; white-space: normal !important; word-break: break-all; line-break: anywhere; }
  .section { padding: 58px 0; }
  .grid-3, .grid-2, .plans, .steps { grid-template-columns: 1fr; }
  .service-row { grid-template-columns: 1fr; gap: 10px; }
  .service-row ul { grid-column: 1; margin-top: 12px; }
  .panel, .plan { min-height: auto; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .site-nav a::after, .btn { transition: none; }
}