:root {
  color-scheme: light;
  --bg: #ffffff;
  --surface: #f8fafc;
  --surface-raised: #f8fafc;
  --border: #e5e7eb;
  --text: #111827;
  --muted: #475569;
  --accent: #166534;
  --accent-soft: #f0fdf4;
  --accent-border: #b7d8c0;
  --font: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-padding-top: 24px; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: var(--font); font-size: 15px; line-height: 1.7; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button, a, summary { -webkit-tap-highlight-color: transparent; }
a:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; }
::selection { color: var(--bg); background: var(--accent); }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { font-weight: 600; }
ul, ol { margin: 0; padding: 0; list-style: none; }
.container { width: min(1120px, calc(100% - 48px)); margin-inline: auto; }
.skip-link { position: absolute; top: -100px; left: 16px; z-index: 10; padding: 12px 18px; color: var(--bg); background: var(--accent); }
.skip-link:focus { top: 12px; }

.site-header { background: var(--bg); border-bottom: 1px solid var(--border); }
.header-inner { min-height: 88px; display: flex; justify-content: space-between; align-items: center; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 11px; flex-shrink: 0; }
.brand-mark { display: grid; place-items: center; width: 36px; height: 36px; border: 1px solid var(--accent-border); border-radius: 9px; color: var(--accent); background: var(--accent-soft); font-size: 20px; font-weight: 600; }
.brand-name { display: flex; align-items: baseline; gap: 10px; font-size: 20px; font-weight: 600; letter-spacing: 1px; }
.brand-english { color: var(--muted); font-size: 10px; letter-spacing: 2px; font-weight: 500; }
.header-brand .brand-mark {
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 12px;
  background: linear-gradient(135deg, #16a34a, #15803d);
  color: #ffffff;
  font-size: 26px;
  font-weight: 700;
}
.header-brand .brand-name {
  flex-direction: column;
  align-items: flex-start;
  gap: 3px;
  font-size: 21px;
  line-height: 1.2;
  letter-spacing: -.3px;
}
.header-brand .brand-subtitle {
  color: var(--muted);
  font-size: 12px;
  font-weight: 400;
  line-height: 1.4;
  letter-spacing: 0;
}
nav { display: flex; align-items: center; gap: 32px; font-size: 14px; }
nav a { display: inline-flex; align-items: center; min-height: 44px; color: var(--text); }
nav a:hover { color: var(--accent); }
nav .nav-contact { gap: 20px; color: var(--accent); }

.hero { padding-block: 76px 66px; display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); gap: 72px; align-items: center; }
.hero-copy, .consultation-guide, .plan-card { min-width: 0; }
.eyebrow { display: flex; align-items: center; gap: 8px; font-size: 12px; letter-spacing: 1.2px; color: var(--accent); font-weight: 500; }
.status-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
h1 { margin-top: 24px; font-size: clamp(32px, 3.55vw, 50px); letter-spacing: -1.5px; line-height: 1.32; }
.accent { color: var(--accent); white-space: nowrap; }
.hero-description { margin-top: 23px; font-size: 16px; color: var(--muted); line-height: 1.9; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 31px; }
.button { min-height: 48px; padding: 10px 20px; border: 1px solid transparent; border-radius: 7px; display: inline-flex; justify-content: center; align-items: center; gap: 12px; font-size: 14px; font-weight: 600; line-height: 1.5; }
.button svg { width: 18px; height: 18px; flex-shrink: 0; }
.button-primary { color: #ffffff; background: var(--accent); }
.button-primary:hover { background: #14532d; }
.button-primary[aria-disabled="true"] { color: #ffffff; background: #4d6b57; border-color: #4d6b57; cursor: not-allowed; }
.button-secondary { color: var(--text); background: var(--bg); border-color: #cbd5e1; }
.button-secondary:hover { background: var(--surface); }
.contact-note { margin-top: 11px; font-size: 12px; color: var(--muted); }
.consultation-guide { position: relative; padding: 23px 28px 19px; background: var(--surface); border: 1px solid var(--border); border-radius: 10px; box-shadow: 0 6px 24px rgb(15 23 42 / 5%); }
.guide-heading { display: flex; justify-content: space-between; align-items: center; }
.small-label { color: var(--muted); font-size: 12px; letter-spacing: 1px; }
.guide-symbol { color: var(--accent); font-size: 22px; line-height: 1; }
.consultation-guide h2 { margin-top: 14px; font-size: 26px; line-height: 1.55; letter-spacing: .5px; }
.guide-list { margin-top: 17px; }
.guide-list li { display: flex; gap: 16px; margin-top: 13px; font-size: 13px; }
.guide-number { font-size: 11px; color: var(--accent); font-variant-numeric: tabular-nums; margin-top: 3px; }
.guide-list li div span { display: block; color: var(--muted); font-size: 12px; margin-top: 1px; }
.guide-footnote { border-top: 1px solid var(--border); padding-top: 14px; margin-top: 18px; font-size: 11px; color: var(--muted); }

.section { padding-block: 48px 64px; }
.section-heading { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 27px; }
.section-index { font-size: 11px; letter-spacing: 1.4px; }
h2 { margin-top: 11px; font-size: 27px; line-height: 1.5; letter-spacing: -.4px; }
.section-caption { padding-bottom: 3px; font-size: 12px; color: var(--muted); }
.plans-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.plan-card { padding: 25px 27px 0; border: 1px solid var(--border); border-radius: 9px; background: var(--bg); }
.plan-plus { border-color: var(--accent-border); }
.plan-plus .plan-tag { color: var(--accent); background: var(--accent-soft); border-color: var(--accent-border); }
.plan-topline { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.plan-label { font-size: 11px; letter-spacing: 2px; color: var(--accent); font-weight: 600; }
.plan-tag { padding: 2px 8px; border: 1px solid var(--border); border-radius: 4px; color: var(--muted); background: var(--surface); font-size: 10px; }
.plan-card h3 { margin-top: 23px; font-size: 24px; line-height: 1.4; letter-spacing: -.5px; }
.plan-description { margin-top: 8px; font-size: 12px; color: var(--muted); }
.price { margin-top: 24px; font-size: 42px; line-height: 1.3; letter-spacing: -1.6px; font-weight: 600; font-variant-numeric: tabular-nums; }
.price-unit { margin-left: 6px; color: var(--muted); font-size: 13px; letter-spacing: 0; font-weight: 400; }
.price-caption { margin-top: 7px; color: var(--muted); font-size: 12px; }
.price-caption [data-price] { color: var(--accent); }
.plan-facts { margin-block: 25px 23px; color: var(--muted); font-size: 12px; }
.plan-facts li { position: relative; padding-left: 14px; margin-top: 8px; }
.plan-facts li::before { content: ""; position: absolute; top: .7em; left: 0; width: 4px; height: 4px; border-radius: 50%; background: var(--accent); }
.plan-link { display: flex; justify-content: space-between; align-items: center; min-height: 54px; gap: 10px; border-top: 1px solid var(--border); font-size: 12px; }
.plan-link span { color: var(--accent); font-size: 18px; }
.plan-link:hover { color: var(--accent); }
.pricing-notice { display: flex; align-items: start; gap: 10px; margin-top: 18px; color: var(--muted); font-size: 12px; line-height: 1.9; }
.notice-icon { display: grid; place-items: center; width: 15px; height: 15px; border: 1px solid var(--muted); border-radius: 50%; font-size: 10px; line-height: 1; margin-top: 4px; flex-shrink: 0; }
.noscript-notice { padding: 14px; margin-top: 16px; border: 1px solid var(--border); color: var(--accent); }

.process-section { border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); background: var(--surface); }
.process-section .section { padding-block: 49px 35px; }
.process-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 32px; margin-top: 33px; }
.step-top { display: flex; align-items: center; gap: 14px; }
.step-number { font-size: 13px; color: var(--accent); font-variant-numeric: tabular-nums; }
.step-line { height: 1px; background: var(--border); flex: 1; }
.process-grid h3 { margin-top: 19px; font-size: 15px; line-height: 1.7; }
.process-grid p { margin-top: 9px; color: var(--muted); font-size: 12px; line-height: 1.9; }
.process-note { border-top: 1px solid var(--border); margin-top: 31px; padding-top: 19px; color: var(--muted); font-size: 11px; line-height: 1.9; }

.faq-section { display: grid; grid-template-columns: .85fr 1.6fr; gap: 84px; padding-block: 67px 64px; }
.faq-intro h2 { margin-top: 14px; }
.faq-intro > p:not(.eyebrow) { color: var(--muted); font-size: 13px; margin-top: 18px; line-height: 1.9; }
.faq-decoration { display: inline-block; margin-top: 23px; font-size: 69px; font-weight: 300; line-height: 1; color: var(--accent-border); }
.faq-list { border-top: 1px solid var(--border); }
.faq-list details { border-bottom: 1px solid var(--border); }
.faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: 18px; list-style: none; min-height: 68px; padding-block: 17px; cursor: pointer; font-size: 14px; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-toggle { position: relative; width: 14px; height: 14px; flex-shrink: 0; }
.faq-toggle::before, .faq-toggle::after { content: ""; position: absolute; background: var(--muted); }
.faq-toggle::before { width: 12px; height: 1px; left: 1px; top: 7px; }
.faq-toggle::after { width: 1px; height: 12px; top: 1px; left: 7px; }
details[open] .faq-toggle::after { display: none; }
details[open] summary { color: var(--accent); }
.faq-list details > p { padding: 0 27px 22px 0; color: var(--muted); font-size: 13px; line-height: 1.95; }

.contact-section { padding-block: 4px 61px; }
.contact-panel { display: flex; justify-content: space-between; align-items: center; gap: 36px; padding: 34px 40px; background: var(--surface-raised); border: 1px solid var(--border); border-radius: 10px; }
.contact-panel h2 { margin-top: 10px; }
.contact-panel > div > p:not(.eyebrow):not(.contact-note) { margin-top: 12px; color: var(--muted); font-size: 13px; line-height: 1.9; }
.contact-action { flex-shrink: 0; text-align: center; }
.contact-action .button { min-width: 196px; }
.site-footer { padding-top: 29px; border-top: 1px solid var(--border); }
.footer-top { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.footer-top .brand-mark { width: 29px; height: 29px; font-size: 17px; border-radius: 7px; }
.footer-top .brand-name { font-size: 17px; }
.footer-label { color: var(--muted); font-size: 11px; }
.footer-notes { margin-top: 21px; color: var(--muted); font-size: 11px; line-height: 1.9; }
.footer-notes p + p { margin-top: 5px; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; margin-top: 25px; padding-block: 16px 21px; border-top: 1px solid var(--border); color: var(--muted); font-size: 10px; letter-spacing: 1px; }

@media (max-width: 960px) {
  .hero { grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: 28px; padding-block: 54px 38px; }
  .consultation-guide { padding: 22px; }
  h1 { font-size: 36px; }
  .hero-description { font-size: 14px; }
  .hero-actions { gap: 10px; }
  .hero-actions .button { padding-inline: 14px; }
  nav { gap: 23px; }
  .plan-card { padding: 21px 19px 0; }
  .plan-card h3 { font-size: 22px; }
  .price { font-size: 37px; }
  .plan-facts { font-size: 11px; }
  .process-grid { gap: 22px; }
  .faq-section { gap: 40px; grid-template-columns: .85fr 1.5fr; }
  .contact-panel { padding: 28px; gap: 20px; }
}

@media (max-width: 700px) {
  .container { width: calc(100% - 40px); }
  .header-inner { min-height: 105px; flex-wrap: wrap; justify-content: center; gap: 6px; padding-block: 14px 7px; }
  .header-inner > .brand { margin-right: auto; }
  nav { width: 100%; justify-content: space-between; gap: 8px; font-size: 12px; }
  nav a { min-height: 44px; }
  nav .nav-contact { gap: 7px; }
  .hero { grid-template-columns: 1fr; padding-block: 39px 17px; gap: 30px; }
  .hero h1 { margin-top: 19px; font-size: clamp(28px, 7.9vw, 45px); letter-spacing: -.8px; line-height: 1.42; }
  .hero-description { margin-top: 18px; max-width: 30em; font-size: 14px; }
  .hero-actions { margin-top: 23px; }
  .hero-actions .button { padding-inline: 17px; font-size: 13px; }
  .consultation-guide { padding: 20px; }
  .consultation-guide h2 { font-size: 21px; margin-top: 10px; }
  .consultation-guide h2 br { display: none; }
  .guide-list { margin-top: 15px; }
  .guide-list li { margin-top: 11px; }
  .guide-footnote { margin-top: 16px; padding-top: 12px; }
  .section { padding-block: 39px 40px; }
  .section-heading { align-items: start; gap: 10px; flex-direction: column; margin-bottom: 22px; }
  h2 { font-size: 24px; margin-top: 9px; }
  .section-caption { font-size: 11px; }
  .plans-grid { grid-template-columns: 1fr; gap: 16px; }
  .plan-card { padding: 23px 24px 0; }
  .plan-card h3 { font-size: 25px; margin-top: 19px; }
  .plan-description { font-size: 13px; }
  .price { font-size: 43px; margin-top: 19px; }
  .plan-facts { font-size: 12px; margin-block: 22px; }
  .plan-link { min-height: 55px; font-size: 13px; }
  .pricing-notice { font-size: 11px; }
  .process-section .section { padding-block: 37px 27px; }
  .process-grid { grid-template-columns: 1fr; gap: 23px; margin-top: 26px; }
  .process-grid li { display: grid; grid-template-columns: 30px 1fr; column-gap: 13px; }
  .step-top { grid-row: 1 / 3; align-items: start; padding-top: 1px; }
  .step-number { font-size: 14px; }
  .step-line { display: none; }
  .process-grid h3 { margin: 0; font-size: 15px; }
  .process-grid p { margin-top: 6px; font-size: 13px; }
  .process-note { margin-top: 26px; padding-top: 18px; }
  .faq-section { grid-template-columns: 1fr; gap: 25px; padding-block: 39px; }
  .faq-intro h2 br { display: none; }
  .faq-intro > p:not(.eyebrow) { margin-top: 12px; font-size: 12px; }
  .desktop-break, .faq-decoration { display: none; }
  .faq-list summary { font-size: 13px; min-height: 65px; }
  .faq-list details > p { font-size: 12px; padding-right: 12px; }
  .contact-section { padding-block: 0 39px; }
  .contact-panel { padding: 25px 23px; flex-direction: column; align-items: stretch; gap: 23px; }
  .contact-panel h2 { font-size: 23px; }
  .contact-action .button { width: 100%; }
  .contact-action .contact-note { margin-top: 10px; }
  .footer-top { align-items: start; gap: 16px; flex-direction: column; }
  .footer-notes { margin-top: 16px; }
  .footer-notes p + p { margin-top: 10px; }
  .footer-bottom { font-size: 9px; letter-spacing: .4px; }
}

@media (prefers-reduced-motion: no-preference) {
  a, summary { transition: color .15s ease, background-color .15s ease; }
}