:root {
  --ink: #101820;
  --ink-soft: #34414a;
  --muted: #6c7478;
  --paper: #f4f5ef;
  --surface: #ffffff;
  --line: #dfe3dc;
  --signal: #d8f36a;
  --signal-deep: #a6c52f;
  --coral: #f17852;
  --shadow: 0 24px 70px rgba(16, 24, 32, 0.13);
  --radius-lg: 28px;
  --radius-md: 18px;
  --content: 1240px;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: var(--paper); }
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
.section-shell { width: min(calc(100% - 64px), var(--content)); margin-inline: auto; }

.site-header {
  width: min(calc(100% - 64px), var(--content));
  min-height: 76px;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  border-bottom: 1px solid rgba(16, 24, 32, 0.1);
}
.brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 780; letter-spacing: -0.02em; white-space: nowrap; }
.brand-mark { position: relative; display: inline-flex; align-items: flex-end; gap: 3px; width: 29px; height: 29px; padding: 5px; border-radius: 9px; background: var(--ink); overflow: hidden; }
.brand-mark span { display: block; width: 4px; border-radius: 4px 4px 2px 2px; background: var(--signal); transform: rotate(20deg); transform-origin: bottom; }
.brand-mark span:nth-child(1) { height: 12px; opacity: .7; }
.brand-mark span:nth-child(2) { height: 18px; }
.brand-mark span:nth-child(3) { height: 10px; opacity: .8; }
.desktop-nav { display: flex; align-items: center; gap: 32px; margin-left: auto; margin-right: 18px; color: var(--ink-soft); font-size: .93rem; }
.desktop-nav a { position: relative; padding-block: 8px; }
.desktop-nav a::after { content: ""; position: absolute; right: 0; bottom: 2px; left: 0; height: 2px; background: var(--signal-deep); transform: scaleX(0); transform-origin: right; transition: transform .2s ease; }
.desktop-nav a:hover::after, .desktop-nav a:focus-visible::after { transform: scaleX(1); transform-origin: left; }
.header-action { padding: 11px 16px; border: 1px solid var(--ink); border-radius: 999px; font-size: .9rem; font-weight: 700; transition: background .2s ease, color .2s ease, transform .2s ease; }
.header-action:hover, .header-action:focus-visible { color: var(--paper); background: var(--ink); transform: translateY(-1px); }

.hero { display: grid; grid-template-columns: minmax(320px, .86fr) minmax(460px, 1.14fr); align-items: center; gap: clamp(52px, 8vw, 124px); min-height: 920px; padding-block: 58px 84px; }
.hero-copy { align-self: center; padding-bottom: 24px; }
.eyebrow { display: flex; align-items: center; gap: 9px; margin: 0 0 22px; color: var(--muted); font-size: .76rem; font-weight: 800; letter-spacing: .14em; line-height: 1.4; }
.eyebrow-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--coral); box-shadow: 0 0 0 4px rgba(241, 120, 82, .14); }
h1, h2, p { margin-top: 0; }
h1 { max-width: 620px; margin-bottom: 25px; font-size: clamp(3rem, 5.7vw, 5.8rem); font-weight: 780; letter-spacing: -.075em; line-height: .98; }
h1 em { color: var(--ink-soft); font-style: normal; }
.hero-description { max-width: 470px; margin-bottom: 34px; color: var(--ink-soft); font-size: 1.1rem; line-height: 1.82; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 16px; min-height: 50px; padding: 13px 20px; border: 1px solid transparent; border-radius: 999px; font-size: 1rem; font-weight: 750; transition: transform .2s ease, background .2s ease, border-color .2s ease; }
.button:hover, .button:focus-visible { transform: translateY(-2px); }
.button-primary { color: var(--ink); background: var(--signal); border-color: var(--signal); }
.button-primary:hover, .button-primary:focus-visible { background: #e4ff87; border-color: #e4ff87; }
.button-secondary { background: transparent; border-color: var(--ink); }
.button-secondary:hover, .button-secondary:focus-visible { color: var(--paper); background: var(--ink); }
.hero-meta { display: flex; align-items: center; gap: 12px; margin-top: 78px; color: var(--muted); font-size: .8rem; letter-spacing: .02em; }
.meta-divider { width: 28px; height: 1px; background: var(--line); }

.hero-demo { justify-self: center; width: min(100%, 540px); }
.demo-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 18px; margin-bottom: 19px; }
.demo-kicker { margin: 0 0 8px; color: var(--muted); font-size: .72rem; font-weight: 800; letter-spacing: .14em; }
.demo-heading h2 { margin: 0; font-size: 1.25rem; letter-spacing: -.04em; }
.demo-status { display: inline-flex; align-items: center; gap: 7px; padding: 8px 10px; color: #59652b; background: rgba(216, 243, 106, .38); border: 1px solid rgba(166, 197, 47, .42); border-radius: 999px; font-size: .76rem; font-weight: 750; white-space: nowrap; }
.demo-status span { width: 7px; height: 7px; border-radius: 50%; background: var(--signal-deep); }
.device-stage { position: relative; width: 100%; min-height: 884px; display: flex; justify-content: center; overflow: visible; }
.device-shell { width: 390px; height: 882px; flex: 0 0 390px; padding-top: 38px; overflow: hidden; background: #20282a; border: 7px solid #20282a; border-radius: 34px; box-shadow: var(--shadow), 0 0 0 1px rgba(255,255,255,.5); transform: scale(var(--device-scale, 1)); transform-origin: top center; }
.device-topbar { position: absolute; top: 7px; left: 7px; right: 7px; display: flex; align-items: center; justify-content: space-between; height: 31px; padding-inline: 13px; color: #b7c0ba; font-size: 10px; letter-spacing: .04em; }
.device-camera { position: absolute; left: 50%; width: 50px; height: 5px; border-radius: 99px; background: #0b0f10; transform: translateX(-50%); }
.device-menu { letter-spacing: .16em; }
.device-iframe { display: block; width: 390px; height: 844px; border: 0; background: #f6f5f0; }
.demo-caption { display: flex; justify-content: space-between; gap: 16px; margin-top: 12px; color: var(--muted); font-size: .76rem; }
.demo-caption span:first-child { color: var(--ink); font-weight: 750; }

.template-section, .process-section, .about-section { padding-block: 116px; border-top: 1px solid rgba(16, 24, 32, .1); }
.section-intro { display: flex; align-items: end; justify-content: space-between; gap: 40px; margin-bottom: 42px; }
.section-intro h2 { margin: 0; font-size: clamp(2.1rem, 4vw, 4rem); letter-spacing: -.07em; line-height: 1; }
.section-intro > p { max-width: 330px; margin: 0 0 2px; color: var(--muted); line-height: 1.7; }
.template-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.template-card { position: relative; display: flex; min-height: 388px; flex-direction: column; justify-content: space-between; padding: 24px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--surface); overflow: hidden; transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease; }
.template-card.available { grid-column: span 2; min-height: 420px; color: var(--paper); background: var(--ink); border-color: var(--ink); }
.template-card:hover { border-color: rgba(16, 24, 32, .36); box-shadow: 0 18px 35px rgba(16, 24, 32, .08); transform: translateY(-4px); }
.template-card.available:hover { border-color: var(--signal); box-shadow: 0 20px 45px rgba(16, 24, 32, .2); }
.card-top { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.card-id { font-size: .73rem; font-weight: 850; letter-spacing: .13em; opacity: .7; }
.card-status { padding: 7px 9px; border-radius: 999px; color: #5b6d19; background: var(--signal); font-size: .74rem; font-weight: 800; }
.coming .card-status { color: var(--muted); background: #eef0ea; }
.card-visual { position: relative; display: flex; align-items: center; justify-content: center; min-height: 122px; margin: 18px -8px 12px; border-radius: 14px; overflow: hidden; background: #293336; }
.card-visual::before, .card-visual::after { content: ""; position: absolute; border-radius: 50%; border: 1px solid rgba(216, 243, 106, .45); }
.card-visual::before { width: 150px; height: 150px; }
.card-visual::after { width: 82px; height: 82px; border-color: rgba(241, 120, 82, .85); }
.card-visual-mark { position: relative; z-index: 1; display: grid; place-items: center; width: 48px; height: 48px; color: var(--ink); background: var(--signal); border-radius: 13px; font-size: 1.35rem; font-weight: 900; transform: rotate(-8deg); }
.coming .card-visual { background: #f2f3ed; }
.coming .card-visual::before, .coming .card-visual::after { border-color: var(--line); }
.coming .card-visual-mark { color: var(--muted); background: #e3e7dc; }
.card-content h3 { max-width: 360px; margin: 0 0 12px; font-size: clamp(1.35rem, 2.1vw, 2rem); letter-spacing: -.055em; }
.card-content p { max-width: 380px; margin-bottom: 17px; color: var(--muted); line-height: 1.65; }
.available .card-content p { color: #bec8c3; }
.chip-row { display: flex; flex-wrap: wrap; gap: 7px; }
.chip { display: inline-flex; align-items: center; min-height: 28px; padding: 5px 9px; border: 1px solid var(--line); border-radius: 999px; color: var(--ink-soft); font-size: .75rem; }
.available .chip { color: #dce4de; border-color: rgba(216, 243, 106, .35); }
.card-actions { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 28px; }
.card-link { display: inline-flex; align-items: center; gap: 8px; font-weight: 780; font-size: .9rem; }
.card-link span { color: var(--signal-deep); transition: transform .2s ease; }
.card-link:hover span { transform: translate(3px, -3px); }
.available .card-link span { color: var(--signal); }
.disabled-link { color: var(--muted); cursor: default; }
.disabled-link span { color: var(--line); }

.process-section { background: var(--ink); color: var(--paper); border-color: rgba(255,255,255,.18); }
.process-intro > p { color: #aeb8b3; }
.process-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid rgba(255,255,255,.18); }
.process-step { min-height: 220px; padding: 24px 28px 24px 0; border-right: 1px solid rgba(255,255,255,.18); }
.process-step + .process-step { padding-left: 28px; }
.process-step:last-child { border-right: 0; }
.process-step-label { margin: 0 0 54px; color: var(--signal); font-size: .78rem; font-weight: 800; letter-spacing: .13em; }
.process-step h3 { margin: 0 0 12px; font-size: 1.45rem; letter-spacing: -.045em; }
.process-step p { max-width: 250px; margin: 0; color: #aeb8b3; line-height: 1.65; }

.about-section { display: grid; grid-template-columns: 1.1fr .9fr; align-items: center; gap: 80px; }
.about-card { max-width: 700px; }
.about-card h2 { max-width: 650px; margin: 0 0 20px; font-size: clamp(2.2rem, 4.4vw, 4.6rem); letter-spacing: -.075em; line-height: 1; }
.about-card > p:not(.eyebrow) { max-width: 570px; color: var(--ink-soft); font-size: 1.05rem; line-height: 1.8; }
.text-link { display: inline-flex; align-items: center; gap: 12px; margin-top: 22px; padding-bottom: 6px; border-bottom: 1px solid var(--ink); font-weight: 780; }
.text-link span { color: var(--coral); }
.about-note { display: flex; gap: 19px; align-items: flex-start; padding: 25px; border-radius: var(--radius-md); background: var(--signal); }
.note-mark { font-size: 1.9rem; line-height: 1; }
.about-note p { max-width: 240px; margin: 0; font-size: 1.12rem; font-weight: 750; line-height: 1.45; letter-spacing: -.03em; }
.site-footer { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-block: 22px 28px; border-top: 1px solid rgba(16, 24, 32, .1); color: var(--muted); font-size: .78rem; }
.site-footer span:first-child { color: var(--ink); font-weight: 780; }

.detail-main { padding-block: 52px 110px; }
.back-link { display: inline-flex; margin-bottom: 44px; color: var(--muted); font-size: .9rem; font-weight: 700; }
.back-link:hover { color: var(--ink); }
.detail-layout { display: grid; grid-template-columns: minmax(300px, .8fr) minmax(440px, 1.2fr); align-items: start; gap: 90px; }
.detail-copy { padding-top: 38px; }
.detail-copy h1 { max-width: 550px; margin-bottom: 16px; font-size: clamp(2.7rem, 5vw, 5.5rem); }
.detail-status { display: inline-flex; padding: 7px 10px; border-radius: 999px; color: #5b6d19; background: var(--signal); font-size: .8rem; font-weight: 800; }
.detail-description { max-width: 510px; margin: 24px 0 32px; color: var(--ink-soft); font-size: 1.08rem; line-height: 1.8; }
.detail-lists { display: grid; gap: 22px; margin-bottom: 30px; }
.list-label { margin: 0 0 10px; color: var(--muted); font-size: .75rem; font-weight: 800; letter-spacing: .1em; }
.chip-list { display: flex; flex-wrap: wrap; gap: 7px; }
.demo-note { max-width: 520px; padding: 14px 16px; border-left: 3px solid var(--signal-deep); color: var(--muted); background: rgba(216, 243, 106, .2); font-size: .85rem; line-height: 1.6; }
.detail-cta { margin-top: 18px; }
.detail-demo { justify-self: center; width: min(100%, 540px); padding: 18px 18px 22px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--surface); box-shadow: var(--shadow); }
.detail-demo-heading { display: flex; justify-content: space-between; gap: 15px; margin-bottom: 16px; color: var(--muted); font-size: .72rem; font-weight: 800; letter-spacing: .13em; }
.detail-device-stage { position: relative; display: flex; justify-content: center; width: 100%; min-height: 884px; overflow: hidden; }
.detail-iframe { width: 390px; height: 844px; border: 7px solid #20282a; border-radius: 31px; background: #f6f5f0; box-shadow: 0 18px 40px rgba(16,24,32,.18); }

@media (max-width: 980px) {
  .hero { grid-template-columns: minmax(280px, .8fr) minmax(360px, 1fr); gap: 40px; }
  .template-grid { grid-template-columns: repeat(2, 1fr); }
  .template-card.available { grid-column: span 2; }
  .about-section { gap: 42px; }
  .detail-layout { gap: 44px; }
}

@media (max-width: 760px) {
  .section-shell, .site-header { width: min(calc(100% - 36px), var(--content)); }
  .site-header { min-height: 70px; gap: 14px; }
  .desktop-nav { display: none; }
  .header-action { padding: 9px 12px; font-size: .8rem; }
  .hero { display: flex; flex-direction: column; align-items: stretch; gap: 46px; min-height: auto; padding-block: 58px 74px; }
  .hero-copy { padding-bottom: 0; }
  h1 { font-size: clamp(3rem, 14vw, 5rem); }
  .hero-description { font-size: 1rem; line-height: 1.72; }
  .hero-meta { margin-top: 34px; font-size: .72rem; }
  .hero-demo { width: 100%; }
  .demo-heading h2 { font-size: 1.05rem; }
  .device-stage { min-height: 0; }
  .demo-caption { font-size: .7rem; }
  .template-section, .process-section, .about-section { padding-block: 76px; }
  .section-intro { display: block; margin-bottom: 30px; }
  .section-intro > p { margin-top: 18px; }
  .template-grid { grid-template-columns: 1fr; }
  .template-card, .template-card.available { grid-column: auto; min-height: 365px; }
  .process-grid { grid-template-columns: 1fr; }
  .process-step, .process-step + .process-step { min-height: 0; padding: 23px 0; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.18); }
  .process-step:last-child { border-bottom: 0; }
  .process-step-label { margin-bottom: 23px; }
  .about-section { display: block; }
  .about-note { margin-top: 30px; }
  .site-footer { flex-wrap: wrap; font-size: .72rem; }
  .detail-main { padding-block: 35px 70px; }
  .detail-layout { display: flex; flex-direction: column; gap: 52px; }
  .detail-copy { padding-top: 0; }
  .detail-demo { width: 100%; padding-inline: 12px; }
  .detail-device-stage { min-height: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}