:root {
  --ink: #17211f;
  --ink-soft: #40514d;
  --muted: #66736f;
  --line: #d9e2dd;
  --paper: #f7faf8;
  --white: #fff;
  --green: #146c5b;
  --green-dark: #0d4f43;
  --mint: #dff3e8;
  --lime: #d8f64c;
  --serif: "Iowan Old Style", "Songti SC", "STSong", serif;
  --sans: Inter, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--sans); -webkit-font-smoothing: antialiased; }
a { color: inherit; }
button { font: inherit; }
.wrap { width: min(1160px, calc(100% - 48px)); margin: 0 auto; }
.skip-link { position: fixed; z-index: 20; top: -50px; left: 16px; padding: 10px 14px; background: var(--ink); color: #fff; border-radius: 8px; }
.skip-link:focus { top: 16px; }

.site-header { position: sticky; z-index: 10; top: 0; background: rgba(247, 250, 248, .93); border-bottom: 1px solid rgba(217, 226, 221, .75); backdrop-filter: blur(15px); }
.header-inner { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 25px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-size: 19px; font-weight: 760; letter-spacing: -.04em; text-decoration: none; }
.brand-mark { width: 33px; height: 33px; display: grid; place-items: center; border-radius: 10px; background: var(--green); color: #fff; font: 700 22px/.9 var(--serif); }
.brand small { display: block; margin-top: 2px; color: var(--muted); font-size: 9px; font-weight: 650; letter-spacing: .12em; text-transform: uppercase; }
.nav { display: flex; align-items: center; gap: 27px; }
.nav a { color: var(--ink-soft); font-size: 14px; font-weight: 600; text-decoration: none; transition: color .18s; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--green); }
.menu-button { display: none; padding: 9px; border: 0; background: transparent; color: var(--ink); font-size: 24px; line-height: 1; }

.hero { position: relative; overflow: hidden; padding: clamp(86px, 11vw, 150px) 0 94px; background: #eff7f2; }
.hero::before { content: ""; position: absolute; width: min(55vw, 680px); aspect-ratio: 1; right: -12vw; top: -23vw; border: 1px solid rgba(20, 108, 91, .19); border-radius: 50%; box-shadow: 0 0 0 58px rgba(20, 108, 91, .055), 0 0 0 117px rgba(20, 108, 91, .035); }
.hero-grid { position: relative; display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(280px, .8fr); align-items: end; }
.eyebrow { margin: 0 0 20px; color: var(--green); font-size: 11px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
h1, h2, h3, p { margin-top: 0; }
h1, h2 { letter-spacing: -.065em; }
h1 { max-width: 790px; margin-bottom: 28px; font: 600 clamp(51px, 7vw, 92px)/.99 var(--serif); }
h1 em, h2 em { color: var(--green); font-style: normal; }
.hero-lead { max-width: 610px; margin-bottom: 35px; color: var(--ink-soft); font-size: 18px; line-height: 1.85; }
.button-row { display: flex; flex-wrap: wrap; gap: 13px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 47px; padding: 0 21px; border: 1px solid var(--green); border-radius: 9px; background: var(--green); color: #fff; font-size: 14px; font-weight: 700; text-decoration: none; transition: transform .18s, background .18s; }
.button:hover { background: var(--green-dark); transform: translateY(-2px); }
.button-outline { background: transparent; color: var(--green-dark); }
.button-outline:hover { background: var(--white); }
.hero-side { padding: 30px; border: 1px solid rgba(20, 108, 91, .22); background: rgba(255, 255, 255, .66); box-shadow: 13px 13px 0 var(--lime); }
.hero-side .overline { margin: 0 0 42px; color: var(--muted); font-size: 10px; font-weight: 750; letter-spacing: .12em; }
.hero-side strong { display: block; max-width: 270px; font: 600 clamp(29px, 3.1vw, 43px)/1.1 var(--serif); letter-spacing: -.05em; }
.hero-side p:last-child { margin: 30px 0 0; color: var(--ink-soft); font-size: 13px; line-height: 1.75; }

.trust-strip { border-bottom: 1px solid var(--line); background: var(--white); }
.trust-strip .wrap { display: grid; grid-template-columns: 1fr 1fr 1.2fr; }
.trust-item { min-height: 106px; padding: 26px 30px 23px 0; display: flex; flex-direction: column; justify-content: center; }
.trust-item + .trust-item { padding-left: 30px; border-left: 1px solid var(--line); }
.trust-item span { margin-bottom: 6px; color: var(--green); font-size: 10px; font-weight: 800; letter-spacing: .12em; }
.trust-item strong { font-size: 15px; line-height: 1.45; }

.section { padding: 112px 0; }
.section-alt { background: var(--white); }
.section-head { max-width: 740px; margin-bottom: 53px; }
.section-head h2 { margin-bottom: 18px; font: 600 clamp(38px, 5vw, 65px)/1.04 var(--serif); }
.section-head p { margin: 0; color: var(--ink-soft); font-size: 16px; line-height: 1.85; }
.product-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.product-card { display: flex; min-height: 410px; padding: 36px; flex-direction: column; border: 1px solid var(--line); background: var(--paper); text-decoration: none; transition: box-shadow .2s, transform .2s; }
.product-card:hover { box-shadow: 10px 10px 0 var(--mint); transform: translate(-3px, -3px); }
.product-icon { display: block; width: 74px; height: 74px; margin-bottom: 29px; border-radius: 18px; object-fit: cover; box-shadow: 0 10px 22px rgba(23, 33, 31, .15); }
.product-icon-large { width: 96px; height: 96px; margin-bottom: 25px; border-radius: 23px; }
.product-tag { margin: 0 0 26px; color: var(--green); font-size: 11px; font-weight: 800; letter-spacing: .12em; }
.product-card h3 { margin: 0 0 14px; font: 600 clamp(32px, 4vw, 46px)/1 var(--serif); letter-spacing: -.06em; }
.product-card h3 span { display: block; margin-top: 8px; color: var(--muted); font: 650 12px/1.3 var(--sans); letter-spacing: .08em; }
.product-card > p { max-width: 420px; color: var(--ink-soft); font-size: 15px; line-height: 1.8; }
.product-link { margin-top: auto; padding-top: 38px; color: var(--green-dark); font-size: 14px; font-weight: 750; }
.product-card.learn { background: #13211e; border-color: #13211e; color: #effbf5; }
.product-card.learn h3 span, .product-card.learn > p { color: #b4c7bf; }
.product-card.learn .product-tag, .product-card.learn .product-link { color: var(--lime); }
.product-card.clear { background: #e9f6ef; }
.product-card.clear .product-tag { color: #0e5c49; }

.principles { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.principle { padding: 33px 32px 35px; }
.principle + .principle { border-left: 1px solid var(--line); }
.principle .number { color: var(--green); font-size: 11px; font-weight: 800; letter-spacing: .12em; }
.principle h3 { margin: 55px 0 12px; font-size: 21px; letter-spacing: -.04em; }
.principle p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.8; }

.statement { padding: 80px 0; background: var(--green); color: #f3faf6; }
.statement-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 70px; }
.statement .eyebrow { color: var(--lime); }
.statement h2 { margin: 0; font: 600 clamp(38px, 5.2vw, 67px)/1.05 var(--serif); }
.statement p { max-width: 590px; margin: 0; color: #d2e5dc; font-size: 17px; line-height: 1.9; }

.contact-section { padding: 112px 0; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: start; }
.contact-grid h2 { margin-bottom: 20px; font: 600 clamp(40px, 5vw, 64px)/1.06 var(--serif); }
.contact-grid > div > p { color: var(--ink-soft); font-size: 16px; line-height: 1.85; }
.contact-list { margin: 0; border-top: 1px solid var(--line); }
.contact-list div { display: grid; grid-template-columns: 102px 1fr; gap: 18px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.contact-list dt { color: var(--muted); font-size: 12px; font-weight: 750; letter-spacing: .1em; }
.contact-list dd { margin: 0; font-size: 15px; line-height: 1.7; }
.contact-list a { color: var(--green-dark); font-weight: 750; text-decoration-thickness: 1px; text-underline-offset: 4px; }

.page-hero { padding: 87px 0 77px; background: #eff7f2; border-bottom: 1px solid var(--line); }
.page-hero h1 { max-width: 800px; margin-bottom: 21px; }
.page-hero p:last-child { max-width: 680px; margin: 0; color: var(--ink-soft); font-size: 17px; line-height: 1.85; }
.product-detail { display: grid; grid-template-columns: .8fr 1.2fr; gap: 70px; padding: 96px 0; border-bottom: 1px solid var(--line); }
.product-detail:last-of-type { border-bottom: 0; }
.product-detail .product-name { margin: 0; font: 600 clamp(39px, 5vw, 61px)/1 var(--serif); letter-spacing: -.06em; }
.product-detail .product-name span { display: block; margin-top: 11px; color: var(--muted); font: 750 12px/1.2 var(--sans); letter-spacing: .09em; }
.product-copy > p { max-width: 630px; color: var(--ink-soft); font-size: 16px; line-height: 1.9; }
.feature-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 32px 0 35px; }
.feature-list div { min-height: 116px; padding: 18px; background: #eef5f1; }
.feature-list b { display: block; margin-bottom: 8px; color: var(--green-dark); font-size: 14px; }
.feature-list span { color: var(--muted); font-size: 12px; line-height: 1.55; }
.detail-action { display: inline-flex; color: var(--green-dark); font-size: 14px; font-weight: 800; text-underline-offset: 5px; }
.about-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 90px; padding: 105px 0; }
.about-grid h2 { margin: 0; font: 600 clamp(38px, 5vw, 62px)/1.05 var(--serif); }
.about-copy p { max-width: 650px; color: var(--ink-soft); font-size: 16px; line-height: 1.95; }
.about-copy p:first-child { margin-top: 3px; }
.timeline { margin-top: 48px; border-top: 1px solid var(--line); }
.timeline div { display: grid; grid-template-columns: 105px 1fr; gap: 20px; padding: 21px 0; border-bottom: 1px solid var(--line); }
.timeline time { color: var(--green); font-size: 13px; font-weight: 800; }
.timeline p { margin: 0; font-size: 14px; line-height: 1.75; }
.legal { max-width: 800px; padding: 90px 0 110px; }
.legal h1 { margin-bottom: 18px; font-size: clamp(46px, 6.2vw, 77px); }
.legal .updated { margin-bottom: 52px; color: var(--muted); font-size: 13px; }
.legal section { padding: 27px 0; border-top: 1px solid var(--line); }
.legal h2 { margin-bottom: 13px; font: 600 28px/1.15 var(--serif); letter-spacing: -.04em; }
.legal p, .legal li { color: var(--ink-soft); font-size: 15px; line-height: 1.85; }
.legal ul { margin: 0; padding-left: 20px; }
.legal a { color: var(--green-dark); }

.site-footer { padding: 47px 0 28px; border-top: 1px solid var(--line); background: #f0f5f2; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 30px; }
.footer-grid-compact { grid-template-columns: 1fr 1fr; }
.footer-heading { margin: 0 0 12px; color: var(--muted); font-size: 10px; font-weight: 800; letter-spacing: .12em; }
.footer-grid p { margin: 0; color: var(--ink-soft); font-size: 13px; line-height: 1.75; }
.footer-grid a { display: table; margin-bottom: 9px; color: var(--ink-soft); font-size: 13px; text-decoration: none; }
.footer-grid a:hover { color: var(--green); text-decoration: underline; text-underline-offset: 4px; }
.copyright { margin: 38px 0 0; padding-top: 18px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.filing-link { display: inline-block; margin-top: 10px; color: var(--muted); font-size: 12px; text-decoration: none; }
.filing-link:hover { color: var(--green); text-decoration: underline; text-underline-offset: 4px; }

@media (max-width: 780px) {
  .wrap { width: min(100% - 36px, 600px); }
  .header-inner { min-height: 67px; }.brand { font-size: 17px; }.brand-mark { width: 29px; height: 29px; border-radius: 9px; font-size: 19px; }
  .menu-button { display: block; }.nav { display: none; position: absolute; top: 67px; right: 0; left: 0; padding: 14px 18px 19px; flex-direction: column; align-items: stretch; gap: 0; background: var(--paper); border-bottom: 1px solid var(--line); }.nav.is-open { display: flex; }.nav a { padding: 12px 0; }
  .hero { padding: 72px 0 67px; }.hero-grid, .statement-grid, .contact-grid, .product-detail, .about-grid { grid-template-columns: 1fr; gap: 39px; }.hero-side { max-width: 420px; padding: 27px; }.hero-side .overline { margin-bottom: 30px; }
  .trust-strip .wrap, .product-grid, .principles, .footer-grid { grid-template-columns: 1fr; }.trust-item { min-height: auto; padding: 21px 0; }.trust-item + .trust-item { padding-left: 0; border-left: 0; border-top: 1px solid var(--line); }
  .section, .contact-section { padding: 72px 0; }.section-head { margin-bottom: 36px; }.product-card { min-height: 330px; padding: 28px; }.product-icon { width: 68px; height: 68px; margin-bottom: 23px; border-radius: 16px; }.product-icon-large { width: 88px; height: 88px; margin-bottom: 23px; border-radius: 21px; }.principle + .principle { border-top: 1px solid var(--line); border-left: 0; }.principle { padding: 26px 0; }.principle h3 { margin-top: 32px; }.statement { padding: 66px 0; }
  .page-hero { padding: 67px 0 61px; }.product-detail, .about-grid { padding: 66px 0; }.feature-list { grid-template-columns: 1fr; }.feature-list div { min-height: auto; }.contact-list div, .timeline div { grid-template-columns: 80px 1fr; gap: 14px; }.footer-grid, .footer-grid-compact { gap: 25px; }
}

@media (max-width: 390px) { h1 { font-size: 47px; }.hero-lead, .page-hero p:last-child { font-size: 16px; } }