:root {
  --ink: #163b46;
  --ink-soft: #547078;
  --teal: #20736e;
  --teal-deep: #155a5b;
  --cream: #f8f6ef;
  --line: #dce5df;
  --yellow: #f0bf4d;
  --white: #fffefa;
  --shadow: 0 20px 50px rgba(22, 59, 70, .08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--cream); font-family: "PingFang SC", "Microsoft YaHei", system-ui, sans-serif; }
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
.page-shell { width: min(1240px, calc(100% - 64px)); margin: 0 auto; }
.site-header { display: flex; align-items: center; justify-content: space-between; padding: 30px 0 25px; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; gap: 13px; }
.brand-mark { position: relative; display: flex; align-items: flex-end; gap: 4px; width: 37px; height: 37px; padding: 8px 7px; overflow: hidden; background: var(--teal); border-radius: 13px 13px 13px 4px; }
.brand-mark i { display: block; width: 6px; height: 6px; background: #f6d276; border-radius: 50%; }
.brand-mark i:nth-child(2) { margin-bottom: 8px; }
.brand-mark i:nth-child(3) { margin-bottom: 16px; }
.brand-copy strong { display: block; font-size: 16px; letter-spacing: .04em; }
.brand-copy small { display: block; margin-top: 4px; color: var(--ink-soft); font-size: 9px; letter-spacing: .2em; }
.site-nav { display: flex; gap: 28px; color: var(--ink-soft); font-size: 13px; }
.site-nav a { position: relative; padding: 7px 0; }
.site-nav a.active, .site-nav a:hover { color: var(--ink); }
.site-nav a.active::after { position: absolute; right: 0; bottom: 0; left: 0; height: 2px; background: var(--yellow); content: ""; }
.hero { display: grid; grid-template-columns: 1.05fr .95fr; gap: 50px; align-items: center; min-height: 450px; padding: 65px 0 70px; }
.eyebrow { margin: 0 0 15px; color: var(--teal); font-size: 11px; font-weight: 700; letter-spacing: .16em; }
.status-dot { display: inline-block; width: 7px; height: 7px; margin-right: 7px; background: #55a86d; border-radius: 50%; box-shadow: 0 0 0 4px #55a86d20; }
h1, h2, h3, p { margin: 0; }
.hero h1 { max-width: 610px; font-size: clamp(42px, 6vw, 74px); line-height: 1.1; letter-spacing: -.06em; font-weight: 700; }
.hero h1 em { display: block; color: var(--teal); font-style: normal; }
.hero-intro { max-width: 465px; margin-top: 24px; color: var(--ink-soft); font-size: 16px; line-height: 1.8; }
.hero-link { display: inline-flex; gap: 18px; align-items: center; margin-top: 28px; padding-bottom: 8px; border-bottom: 1px solid var(--ink); font-size: 14px; font-weight: 700; }
.hero-link span { color: var(--yellow); font-size: 20px; transition: transform .2s ease; }
.hero-link:hover span { transform: translateY(3px); }
.hero-art { position: relative; min-height: 315px; }
.orbit { position: absolute; border: 1px solid #b6cec4; border-radius: 50%; transform: rotate(-22deg); }
.orbit-one { width: 360px; height: 172px; top: 50px; left: 14%; }
.orbit-two { width: 300px; height: 145px; top: 72px; left: 21%; transform: rotate(38deg); }
.orbit-three { width: 230px; height: 106px; top: 92px; left: 30%; transform: rotate(-65deg); }
.art-card { position: absolute; display: flex; flex-direction: column; justify-content: space-between; background: var(--white); box-shadow: var(--shadow); }
.art-card-main { width: 185px; height: 205px; top: 49px; left: 27%; padding: 19px; transform: rotate(-6deg); }
.art-card-main::before { position: absolute; right: -16px; bottom: -18px; width: 39px; height: 39px; border: 1px solid #b6cec4; border-radius: 50%; content: ""; }
.art-card-main span { color: var(--coral, #d56d55); font-size: 12px; font-weight: 700; letter-spacing: .1em; }
.art-card-main strong { font-size: 28px; line-height: 1.22; letter-spacing: -.05em; }
.art-card-main b { color: var(--teal); font-size: 11px; }
.art-card-small { width: 78px; height: 94px; right: 4%; bottom: 21px; align-items: center; padding: 12px; color: var(--teal); transform: rotate(9deg); }
.art-card-small span { color: var(--yellow); font-size: 24px; }
.art-card-small strong { font-size: 16px; line-height: 1.05; text-align: center; }
.apps-section { padding: 24px 0 82px; }
.section-heading { display: flex; align-items: end; justify-content: space-between; margin-bottom: 25px; }
.section-heading .eyebrow { margin-bottom: 9px; }
.section-heading h2, .about-section h2 { font-size: clamp(26px, 3vw, 36px); letter-spacing: -.04em; }
.app-count { color: var(--ink-soft); font-size: 13px; }
.app-count span { color: var(--ink); font-weight: 700; }
.app-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.app-card { position: relative; display: flex; min-height: 330px; flex-direction: column; padding: 25px; overflow: hidden; background: var(--white); border: 1px solid transparent; box-shadow: 0 10px 30px rgba(22, 59, 70, .04); transition: transform .2s ease, box-shadow .2s ease; }
.app-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.app-card.teal { border-color: #cee2d9; }
.card-top, .card-bottom { display: flex; align-items: center; justify-content: space-between; }
.card-index { color: var(--teal); font-size: 12px; font-weight: 700; letter-spacing: .1em; }
.card-status { padding: 5px 9px; color: #3e8367; background: #e9f3eb; border-radius: 20px; font-size: 10px; }
.app-icon { display: grid; width: 58px; height: 58px; margin: 29px 0 21px; place-items: center; color: var(--white); background: var(--teal); border-radius: 19px 19px 19px 5px; font-size: 30px; box-shadow: 5px 5px 0 #cae2d6; }
.card-category { color: var(--teal); font-size: 11px; font-weight: 700; letter-spacing: .11em; }
.app-card h3 { margin-top: 7px; font-size: 24px; letter-spacing: -.04em; }
.card-description { max-width: 300px; margin-top: 10px; color: var(--ink-soft); font-size: 13px; line-height: 1.7; }
.card-bottom { align-items: end; gap: 14px; margin-top: auto; padding-top: 24px; }
.tag-list { display: flex; flex-wrap: wrap; gap: 6px; }
.tag-list span { padding: 5px 8px; color: var(--ink-soft); background: #f1f5ef; border-radius: 3px; font-size: 10px; }
.app-action { flex: 0 0 auto; color: var(--teal); font-size: 12px; font-weight: 700; white-space: nowrap; }
.app-action span { margin-left: 7px; font-size: 17px; vertical-align: -2px; }
.app-action:hover { color: var(--ink); }
.app-action.muted { color: #9daead; }
.placeholder { align-items: center; justify-content: center; min-height: 330px; background: transparent; border: 1px dashed #bed0c8; box-shadow: none; text-align: center; }
.placeholder:hover { transform: none; box-shadow: none; }
.placeholder-plus { display: grid; width: 47px; height: 47px; margin-bottom: 15px; place-items: center; color: var(--teal); border: 1px solid #a9c5b9; border-radius: 50%; font-size: 27px; font-weight: 300; }
.placeholder h3 { font-size: 17px; }
.placeholder p { max-width: 190px; margin-top: 9px; color: var(--ink-soft); font-size: 12px; line-height: 1.7; }
.about-section { display: grid; grid-template-columns: auto 1fr auto; gap: 25px; align-items: center; padding: 35px 38px; background: #e7f0e8; }
.about-icon { display: grid; width: 51px; height: 51px; place-items: center; color: var(--white); background: var(--teal); border-radius: 50%; font-size: 23px; }
.about-section .eyebrow { margin-bottom: 7px; }
.about-section h2 { font-size: 24px; }
.about-section p:not(.eyebrow) { max-width: 590px; margin-top: 9px; color: #56736f; font-size: 13px; line-height: 1.75; }
.about-steps { display: flex; gap: 20px; color: #5a7772; font-size: 11px; }
.about-steps span { display: flex; align-items: center; gap: 7px; white-space: nowrap; }
.about-steps b { color: var(--teal); font-size: 10px; }
.site-footer { display: flex; justify-content: space-between; padding: 28px 0 34px; color: #78908c; font-size: 11px; }

@media (max-width: 860px) {
  .page-shell { width: min(100% - 36px, 620px); }
  .hero { grid-template-columns: 1fr; gap: 20px; padding: 52px 0 35px; }
  .hero-art { min-height: 260px; }
  .art-card-main { left: 21%; }
  .orbit-one { left: 8%; }
  .orbit-two { left: 14%; }
  .orbit-three { left: 23%; }
  .app-grid { grid-template-columns: repeat(2, 1fr); }
  .about-section { grid-template-columns: auto 1fr; }
  .about-steps { grid-column: 2; }
}
@media (max-width: 560px) {
  .page-shell { width: calc(100% - 30px); }
  .site-header { padding-top: 19px; }
  .site-nav { gap: 15px; }
  .hero h1 { font-size: 43px; }
  .hero-art { min-height: 220px; transform: scale(.84); transform-origin: left top; margin-bottom: -35px; }
  .app-grid { grid-template-columns: 1fr; }
  .app-card, .placeholder { min-height: 300px; }
  .section-heading { align-items: start; flex-direction: column; gap: 7px; }
  .about-section { grid-template-columns: 1fr; gap: 16px; padding: 28px 23px; }
  .about-steps { grid-column: auto; flex-wrap: wrap; gap: 12px; }
  .site-footer { flex-direction: column; gap: 7px; }
}