:root {
  --paper: #f7f8f5;
  --white: #fff;
  --ink: #17211a;
  --green: #226b3a;
  --green-deep: #174f2b;
  --green-soft: #eaf4e7;
  --sun: #e8b339;
  --muted: #5e675f;
  --quiet: #899087;
  --line: #dce4da;
  --content: min(1240px, calc(100vw - 64px));
  --display: "Songti SC", "Noto Serif CJK SC", "STSong", serif;
  --body: "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(--body); -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, a { font: inherit; }
button { color: inherit; }
:focus-visible { outline: 3px solid rgba(232, 179, 57, 0.85); outline-offset: 5px; }

.site-header {
  position: fixed; z-index: 30; inset: 0 0 auto; display: grid; min-height: 84px;
  grid-template-columns: 1fr auto 1fr; align-items: center;
  padding: 0 max(32px, calc((100vw - 1240px) / 2)); color: #fff;
  text-shadow: 0 2px 16px rgba(13, 35, 20, 0.35);
  transition: background 220ms ease, color 220ms ease, min-height 220ms ease;
}
.site-header.is-scrolled {
  min-height: 68px; color: var(--ink); background: rgba(247, 248, 245, 0.94);
  border-bottom: 1px solid rgba(220, 228, 218, 0.9); text-shadow: none;
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
}
.wordmark { display: inline-flex; width: fit-content; align-items: baseline; gap: 10px; }
.wordmark strong { font-family: var(--display); font-size: 27px; letter-spacing: 0.13em; }
.wordmark span { font-size: 11px; font-weight: 700; }
.main-nav { display: flex; gap: 38px; font-size: 14px; font-weight: 650; }
.main-nav a, .footer-links a, .text-link, .promise-link { position: relative; }
.main-nav a::after, .footer-links a::after, .text-link::after, .promise-link::after {
  position: absolute; right: 0; bottom: -6px; left: 0; height: 1px; content: "";
  background: currentColor; transform: scaleX(0); transform-origin: right; transition: transform 200ms ease;
}
.main-nav a:hover::after, .footer-links a:hover::after, .text-link:hover::after, .promise-link:hover::after { transform: scaleX(1); transform-origin: left; }
.header-action { justify-self: end; padding: 11px 18px; border: 1px solid currentColor; border-radius: 10px; font-size: 13px; font-weight: 700; }
.site-header.is-scrolled .header-action { border-color: var(--green); color: #fff; background: var(--green); }

.hero { position: relative; min-height: 940px; padding-top: 66vh; overflow: hidden; }
.hero-landscape { position: absolute; inset: 0 0 auto; height: 76vh; min-height: 610px; overflow: hidden; background: #90c7e0; }
.hero-landscape img {
  width: 100%; height: 100%; object-fit: cover; object-position: center; transform: scale(1.02);
  animation: landscape-in 1.1s cubic-bezier(0.22, 1, 0.36, 1) both;
}
@keyframes landscape-in { from { opacity: 0; transform: scale(1.055); } to { opacity: 1; transform: scale(1.02); } }
.hero-sheet {
  position: relative; z-index: 2; display: grid; width: var(--content);
  grid-template-columns: 1.25fr 0.75fr; align-items: end; gap: 80px; margin: 0 auto;
  padding: 60px 64px 66px; border-top: 7px solid var(--green); background: var(--white);
  box-shadow: 0 -18px 50px rgba(18, 48, 28, 0.08);
  animation: sheet-in 780ms 280ms cubic-bezier(0.22, 1, 0.36, 1) both;
}
@keyframes sheet-in { from { opacity: 0; transform: translateY(42px); } to { opacity: 1; transform: translateY(0); } }
.hero-sheet h1, .feature-heading h2, .product-heading h2, .promise-statement h2, .start-copy h2 {
  margin: 0; font-family: var(--display); font-weight: 700; letter-spacing: -0.045em; line-height: 1.08;
}
.hero-sheet h1 { font-size: clamp(62px, 7.2vw, 106px); letter-spacing: -0.06em; line-height: 0.98; }
.hero-intro { padding-bottom: 6px; }
.hero-intro > p { max-width: 490px; margin: 0; color: var(--muted); font-size: 17px; line-height: 1.9; }
.hero-actions { display: flex; align-items: center; gap: 24px; margin-top: 30px; }
.button {
  display: inline-flex; min-height: 52px; align-items: center; justify-content: center; padding: 0 22px;
  border-radius: 10px; font-size: 14px; font-weight: 750; transition: transform 180ms ease, background 180ms ease;
}
.button:hover { transform: translateY(-2px); }
.button-primary { color: #fff; background: var(--green); }
.button-primary:hover { background: var(--green-deep); }
.button-light { color: var(--green); background: #fff; }
.text-link, .promise-link { color: var(--green); font-size: 14px; font-weight: 700; }
.hero-caption { width: var(--content); margin: 18px auto 0; color: var(--quiet); font-size: 12px; }

.feature-section, .product-section, .promise-section { padding: 124px max(32px, calc((100vw - 1240px) / 2)); }
.feature-heading { display: grid; grid-template-columns: 1fr 1fr; align-items: end; margin-bottom: 50px; }
.feature-heading p { max-width: 380px; margin: 0; color: var(--muted); line-height: 1.8; }
.feature-heading h2 { justify-self: end; font-size: clamp(46px, 5.1vw, 72px); }
.feature-strip { display: grid; min-height: 570px; grid-template-columns: repeat(4, 1fr); border-block: 1px solid var(--line); }
.feature-panel { position: relative; min-width: 0; overflow: hidden; padding: 32px 28px 0; border-right: 1px solid rgba(23, 33, 26, 0.12); isolation: isolate; }
.feature-panel:last-child { border-right: 0; }
.feature-moment { background: #e6f0df; }
.feature-checkin { background: #f4e9c9; }
.feature-team { background: #dfecee; }
.feature-ai { background: #e8e3d9; }
.feature-copy { position: relative; z-index: 2; }
.feature-copy span { display: block; margin-bottom: 14px; color: var(--green); font-size: 13px; font-weight: 750; }
.feature-copy h3 { margin: 0 0 13px; font-family: var(--display); font-size: clamp(25px, 2.2vw, 34px); letter-spacing: -0.035em; }
.feature-copy p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.75; }
.feature-panel > img {
  position: absolute; z-index: 1; right: -14%; bottom: -4%; width: 118%; max-width: none; max-height: 390px;
  object-fit: contain; object-position: bottom right; filter: drop-shadow(0 16px 14px rgba(51, 65, 47, 0.12));
  transition: transform 380ms cubic-bezier(0.22, 1, 0.36, 1);
}
.feature-panel:hover > img { transform: translateY(-8px) rotate(-1deg); }
.feature-panel:nth-child(even):hover > img { transform: translateY(-8px) rotate(1deg); }

.product-section { color: #f4f8f2; background: var(--green-deep); }
.product-heading { display: grid; grid-template-columns: 1fr 0.85fr; align-items: end; gap: 80px; margin-bottom: 78px; }
.product-heading h2 { font-size: clamp(50px, 6vw, 82px); }
.product-heading p { max-width: 500px; margin: 0 0 8px; color: #c7d9ca; line-height: 1.9; }
.product-stage { display: grid; min-height: 720px; grid-template-columns: 0.9fr 1.1fr; align-items: center; gap: 90px; }
.screen-selector { display: grid; border-top: 1px solid rgba(255, 255, 255, 0.2); }
.screen-selector button {
  display: grid; width: 100%; grid-template-columns: 88px 1fr; align-items: baseline; gap: 20px;
  padding: 23px 2px; border: 0; border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  color: #8eaa94; background: transparent; text-align: left; cursor: pointer;
  transition: color 180ms ease, padding-left 180ms ease;
}
.screen-selector button:hover, .screen-selector button.is-active { padding-left: 12px; color: #fff; }
.screen-selector button.is-active { box-shadow: inset 4px 0 var(--sun); }
.screen-selector span { font-size: 13px; font-weight: 700; }
.screen-selector strong { font-size: 18px; font-weight: 600; }
.device-wrap { position: relative; display: grid; place-items: center; }
.device-shadow { position: absolute; width: 520px; height: 520px; border: 1px solid rgba(255, 255, 255, 0.08); border-radius: 50%; box-shadow: inset 0 0 90px rgba(143, 198, 127, 0.08); }
.device { position: relative; width: min(352px, 86vw); height: 704px; overflow: hidden; border: 9px solid #f5f6f0; border-radius: 51px; color: var(--ink); background: var(--paper); box-shadow: 0 42px 100px rgba(0, 0, 0, 0.38); }
.device-status { position: absolute; z-index: 12; inset: 0 0 auto; display: flex; height: 30px; align-items: center; justify-content: space-between; padding: 0 18px; color: #152019; font-size: 10px; font-weight: 750; }
.device-status-icons { display: flex; align-items: center; gap: 5px; }
.device-status-icons i { position: relative; display: block; flex: none; }
.status-signal { width: 12px; height: 9px; background: linear-gradient(to right, #152019 0 18%, transparent 18% 27%, #152019 27% 45%, transparent 45% 54%, #152019 54% 72%, transparent 72% 81%, #152019 81%); clip-path: polygon(0 68%, 18% 68%, 18% 45%, 45% 45%, 45% 22%, 72% 22%, 72% 0, 100% 0, 100% 100%, 0 100%); }
.status-wifi { width: 12px; height: 9px; border-top: 2px solid #152019; border-radius: 50%; }
.status-wifi::before, .status-wifi::after { position: absolute; left: 50%; content: ""; border-top: 2px solid #152019; border-radius: 50%; transform: translateX(-50%); }
.status-wifi::before { top: 2px; width: 8px; height: 5px; }
.status-wifi::after { top: 6px; width: 3px; height: 2px; }
.status-battery { width: 17px; height: 8px; border: 1.5px solid #152019; border-radius: 2px; }
.status-battery::before { position: absolute; inset: 1px; content: ""; border-radius: 1px; background: #152019; }
.status-battery::after { position: absolute; top: 2px; right: -3px; width: 2px; height: 4px; content: ""; border-radius: 0 1px 1px 0; background: #152019; }
.device-capsule { position: absolute; z-index: 13; top: 34px; right: 12px; display: flex; width: 70px; height: 27px; align-items: center; justify-content: space-around; padding: 0 7px; border: 1px solid rgba(23, 33, 26, 0.12); border-radius: 99px; background: rgba(255, 255, 255, 0.82); box-shadow: 0 2px 8px rgba(28, 52, 38, 0.06); }
.device-capsule span { margin-top: -4px; font-size: 12px; font-weight: 800; letter-spacing: 1px; }
.device-capsule i { width: 13px; height: 13px; border: 2px solid #17211a; border-radius: 50%; box-shadow: inset 0 0 0 3px rgba(255, 255, 255, 0.92); background: #17211a; }
.app-screen { position: absolute; inset: 0 0 68px; overflow: hidden; opacity: 0; transform: translateX(24px); pointer-events: none; transition: opacity 260ms ease, transform 330ms cubic-bezier(0.22, 1, 0.36, 1); }
.app-screen.is-active { z-index: 3; opacity: 1; transform: translateX(0); pointer-events: auto; }
.app-screen-home { background: #f7f8f5; }
.app-home-hero { position: relative; height: 99px; overflow: hidden; }
.app-home-hero img { width: 100%; height: 100%; object-fit: cover; object-position: 31% center; }
.app-home-brand { position: absolute; right: 51px; bottom: 7px; display: flex; align-items: flex-end; color: #214e2d; flex-direction: column; text-align: right; text-shadow: 0 1px 5px rgba(255, 255, 255, 0.96); }
.app-home-brand strong { font-size: 20px; line-height: 1; }
.app-home-brand span { margin-top: 3px; font-size: 8px; letter-spacing: 0.02em; }
.app-home-message { position: absolute; z-index: 4; right: 12px; bottom: 8px; display: grid; width: 29px; height: 29px; place-items: center; border: 1px solid rgba(225, 231, 224, 0.82); border-radius: 50%; background: rgba(255, 255, 255, 0.9); box-shadow: 0 3px 9px rgba(28, 52, 38, 0.08); }
.app-home-message > img { width: 16px; height: 16px; object-fit: contain; }
.app-home-message i { position: absolute; top: 1px; right: 1px; width: 6px; height: 6px; border: 1px solid #fff; border-radius: 50%; background: #e86643; }
.home-demo-body { padding: 0 15px; }
.home-demo-search { display: flex; height: 34px; margin-top: 8px; align-items: center; padding: 0 4px 0 12px; border: 1px solid rgba(225, 231, 224, 0.92); border-radius: 99px; background: rgba(255, 255, 255, 0.95); box-shadow: 0 5px 15px rgba(31, 50, 37, 0.07); }
.home-demo-search img { width: 15px; height: 15px; opacity: 0.82; }
.home-demo-search span { min-width: 0; margin-left: 8px; overflow: hidden; color: #888c89; font-size: 9px; text-overflow: ellipsis; white-space: nowrap; flex: 1; }
.home-demo-search strong { display: grid; width: 50px; height: 26px; place-items: center; border-radius: 99px; color: #fff; background: #226b3a; box-shadow: 0 3px 8px rgba(34, 107, 58, 0.2); font-size: 9px; }
.home-demo-tabs { display: flex; height: 39px; align-items: flex-end; padding-bottom: 5px; gap: 11px; }
.home-demo-tabs span { position: relative; display: grid; width: 46px; height: 28px; place-items: center; color: #171b18; font-size: 10px; }
.home-demo-tabs span.is-active { color: #226b3a; font-size: 11px; font-weight: 750; }
.home-demo-tabs span img { position: absolute; bottom: -5px; left: 50%; width: 29px; height: 7px; transform: translateX(-50%); }
.home-demo-filters { display: flex; height: 33px; align-items: center; gap: 11px; }
.home-demo-filters span { display: grid; min-width: 48px; height: 23px; place-items: center; padding: 0 10px; border: 1px solid #e1e7e0; border-radius: 99px; background: rgba(255, 255, 255, 0.72); color: #171c18; font-size: 9px; }
.home-demo-filters span.is-active { border-color: rgba(34, 107, 58, 0.08); color: #226b3a; background: linear-gradient(135deg, #f1f6eb, #eaf4e7); font-weight: 650; }
.home-demo-carousel { position: relative; height: 145px; overflow: hidden; border-radius: 13px; background: #2d3a31; box-shadow: 0 7px 18px rgba(28, 52, 38, 0.08); }
.home-banner-slide { position: absolute; inset: 0; margin: 0; overflow: hidden; opacity: 0; transition: opacity 420ms ease; }
.home-banner-slide.is-active { opacity: 1; }
.home-banner-slide > img { width: 100%; height: 100%; object-fit: cover; }
.home-banner-slide > div { position: absolute; z-index: 2; top: 37px; right: 11px; left: 52%; display: flex; color: #17391f; flex-direction: column; }
.home-banner-slide small { align-self: flex-start; min-height: 18px; padding: 0 7px; border-radius: 6px; color: #fff; background: rgba(47, 125, 74, 0.94); font-size: 8px; line-height: 18px; }
.home-banner-slide strong { margin-top: 4px; color: #214d2b; font-size: 16px; letter-spacing: -0.03em; line-height: 1.15; text-shadow: 0 1px 4px rgba(255, 255, 255, 0.88); }
.home-banner-slide span { margin-top: 3px; color: #4d5f50; font-size: 8px; line-height: 1.3; text-shadow: 0 1px 4px rgba(255, 255, 255, 0.92); }
.home-banner-dots { position: absolute; z-index: 5; right: 0; bottom: 8px; left: 0; display: flex; justify-content: center; gap: 6px; }
.home-banner-dots i { width: 7px; height: 7px; border-radius: 50%; background: rgba(244, 247, 244, 0.58); box-shadow: 0 1px 2px rgba(0, 0, 0, 0.16); }
.home-banner-dots i.is-active { background: #fff; }
.home-feed-heading { display: flex; height: 36px; align-items: center; gap: 5px; }
.home-feed-heading img { width: 13px; height: 17px; object-fit: contain; }
.home-feed-heading strong { color: #226b3a; font-size: 15px; font-weight: 650; }
.app-content { padding: 15px; }
.feed-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
.home-feed-card { height: 200px; overflow: hidden; border: 1px solid rgba(225, 231, 224, 0.88); border-radius: 11px; background: #fff; box-shadow: 0 7px 17px rgba(28, 52, 38, 0.075); }
.home-feed-cover { position: relative; height: 126px; }
.home-feed-cover > img { width: 100%; height: 100%; object-fit: cover; }
.home-feed-cover > span { position: absolute; z-index: 2; bottom: -5px; left: 5px; height: 17px; padding: 0 6px; border: 1px solid rgba(126, 161, 113, 0.18); border-radius: 5px; color: #3e7145; background: #edf5e7; font-size: 8px; line-height: 16px; }
.home-feed-copy { position: relative; height: 74px; padding: 9px 7px 5px; }
.home-feed-copy > strong { display: block; overflow: hidden; color: #141915; font-size: 9px; font-weight: 650; line-height: 14px; text-overflow: ellipsis; white-space: nowrap; }
.home-feed-author { display: flex; height: 27px; align-items: center; }
.home-feed-author > i { display: grid; width: 21px; height: 21px; place-items: center; border: 1px solid rgba(255, 255, 255, 0.9); border-radius: 50%; color: #fff; background: #283528; font-size: 7px; font-style: normal; }
.home-feed-author > span { display: flex; min-width: 0; margin-left: 5px; color: #222824; flex-direction: column; font-size: 8px; line-height: 11px; }
.home-feed-author small { overflow: hidden; color: #777d78; font-size: 7px; font-weight: 400; text-overflow: ellipsis; white-space: nowrap; }
.home-feed-actions { position: absolute; z-index: 2; right: 7px; bottom: 5px; left: 7px; display: flex; height: 17px; align-items: center; gap: 15px; }
.home-feed-actions span { display: inline-flex; align-items: center; color: #727873; font-size: 7px; gap: 3px; }
.home-feed-actions img { width: 12px; height: 12px; }
.home-feed-leaf { position: absolute; right: 5px; bottom: 4px; width: 35px; height: 22px; object-fit: contain; }

.app-titlebar { display: flex; height: 92px; align-items: end; justify-content: space-between; padding: 0 17px 17px; background: #dcecd5; }
.app-titlebar strong { font-size: 20px; }
.app-titlebar span { color: var(--green); font-size: 11px; font-weight: 700; }
.checkin-list { display: grid; gap: 12px; }
.place-card { overflow: hidden; border: 1px solid var(--line); border-radius: 18px; background: #fff; }
.place-card > img { width: 100%; height: 170px; object-fit: cover; }
.place-card > div { padding: 15px; }
.place-card small { color: var(--green); font-size: 9px; font-weight: 700; }
.place-card h3 { margin: 6px 0; font-size: 16px; }
.place-card p { margin: 0; color: var(--muted); font-size: 10px; }
.place-card span { display: block; margin-top: 12px; color: var(--green); font-size: 10px; font-weight: 700; }
.place-card-small { min-height: 128px; }
.team-scene { width: 100%; height: 226px; object-fit: cover; }
.team-sheet { position: relative; margin: -30px 14px 0; padding: 19px; border-radius: 20px; background: #fff; box-shadow: 0 18px 35px rgba(23, 56, 31, 0.14); }
.team-sheet > small { color: var(--green); font-size: 9px; font-weight: 750; }
.team-sheet h3 { margin: 7px 0 9px; font-size: 17px; }
.team-sheet p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.7; }
.team-sheet dl { display: grid; grid-template-columns: 1fr 1fr; margin: 16px 0 0; padding-top: 13px; border-top: 1px solid var(--line); }
.team-sheet dl div + div { padding-left: 15px; border-left: 1px solid var(--line); }
.team-sheet dt { color: var(--quiet); font-size: 8px; }
.team-sheet dd { margin: 4px 0 0; font-size: 10px; font-weight: 700; }
.ai-screen { background: #f4f7f2; }
.ai-titlebar { display: flex; height: 100px; align-items: end; gap: 10px; padding: 0 17px 16px; background: #e5f0df; }
.ai-titlebar img { width: 40px; height: 40px; object-fit: contain; }
.ai-titlebar small, .ai-titlebar strong { display: block; }
.ai-titlebar small { color: var(--green); font-size: 8px; }
.ai-titlebar strong { margin-top: 2px; font-size: 15px; }
.conversation { display: grid; gap: 13px; padding: 18px 15px; }
.message { max-width: 84%; margin: 0; padding: 12px 13px; border-radius: 15px; font-size: 10px; line-height: 1.65; }
.message-user { justify-self: end; border-bottom-right-radius: 4px; color: #fff; background: var(--green); }
.message-ai { border: 1px solid var(--line); border-bottom-left-radius: 4px; background: #fff; }
.draft-card { padding: 15px; border: 1px solid var(--line); border-radius: 18px; background: #fff; }
.draft-card small { color: var(--green); font-size: 8px; font-weight: 700; }
.draft-card h3 { margin: 7px 0 9px; font-size: 14px; }
.draft-card p { margin: 0; color: var(--muted); font-size: 10px; line-height: 1.7; }
.draft-card button { width: 100%; margin-top: 14px; padding: 10px; border: 0; border-radius: 9px; color: #fff; background: var(--green); font-size: 10px; font-weight: 700; }
.app-tabbar { position: absolute; z-index: 8; inset: auto 0 0; display: grid; height: 68px; grid-template-columns: repeat(5, 1fr); align-items: center; border-top: 1px solid var(--line); background: rgba(255, 255, 255, 0.97); }
.app-tabbar span { display: grid; gap: 2px; place-items: center; color: #7c847d; font-size: 8px; }
.app-tabbar img { width: 20px; height: 20px; }
.app-tabbar .selected { color: var(--green); }
.app-tabbar .publish img { width: 48px; height: 48px; margin-top: -24px; }

.promise-section { background: #edf1ea; }
.promise-statement { display: grid; grid-template-columns: 0.55fr 1.45fr; gap: 80px; padding-bottom: 80px; border-bottom: 1px solid #cbd6ca; }
.promise-statement > p { margin: 11px 0 0; color: var(--green); font-weight: 700; line-height: 1.8; }
.promise-statement h2 { font-size: clamp(48px, 6vw, 82px); }
.promise-list { display: grid; grid-template-columns: repeat(3, 1fr); }
.promise-list article { padding: 38px 36px 38px 0; border-bottom: 1px solid #cbd6ca; }
.promise-list article + article { padding-left: 36px; border-left: 1px solid #cbd6ca; }
.promise-list strong { font-family: var(--display); font-size: 24px; }
.promise-list p { max-width: 340px; margin: 14px 0 0; color: var(--muted); line-height: 1.8; }
.promise-link { display: inline-block; margin-top: 30px; }

.start-section {
  position: relative; display: grid; min-height: 660px; grid-template-columns: 1fr 1fr; align-items: center;
  overflow: hidden; padding: 70px max(32px, calc((100vw - 1240px) / 2)) 0; color: #fff; background: #1d6336;
}
.start-section::before { position: absolute; right: -8vw; bottom: -26vw; width: 62vw; height: 62vw; content: ""; border: 1px solid rgba(255, 255, 255, 0.12); border-radius: 50%; }
.start-copy { position: relative; z-index: 2; align-self: center; padding-bottom: 70px; }
.start-copy > p:first-child { margin: 0 0 18px; color: #cae0cc; font-weight: 700; }
.start-copy h2 { font-size: clamp(58px, 7vw, 96px); }
.start-note { max-width: 460px; margin: 25px 0 28px; color: #c6d9c8; font-size: 14px; line-height: 1.8; }
.start-section > img { position: relative; z-index: 1; align-self: end; justify-self: end; width: min(570px, 47vw); max-height: 620px; object-fit: contain; object-position: bottom; filter: drop-shadow(0 22px 28px rgba(10, 34, 17, 0.28)); }

.site-footer { display: grid; grid-template-columns: 1fr auto; gap: 42px; padding: 54px max(32px, calc((100vw - 1240px) / 2)); color: var(--muted); background: var(--paper); }
.footer-brand { display: flex; align-items: baseline; gap: 18px; }
.footer-brand strong { color: var(--ink); font-family: var(--display); font-size: 28px; letter-spacing: 0.12em; }
.footer-brand span { font-size: 13px; }
.footer-links { display: flex; gap: 26px; font-size: 13px; font-weight: 700; }
.footer-meta { display: grid; grid-column: 1 / -1; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 24px; padding-top: 22px; border-top: 1px solid var(--line); color: var(--quiet); font-size: 11px; }
.footer-meta > span:last-child { justify-self: end; }
.footer-filings { display: flex; align-items: center; justify-content: center; gap: 18px; }
.footer-filings a:hover { color: var(--green); }
.filing-pending { color: #a1a79f; }

@media (max-width: 1020px) {
  :root { --content: min(100% - 40px, 760px); }
  .site-header { grid-template-columns: 1fr auto; padding: 0 24px; }
  .main-nav { display: none; }
  .hero { min-height: 980px; padding-top: 58vh; }
  .hero-landscape { height: 65vh; min-height: 520px; }
  .hero-landscape img { object-position: 30% center; }
  .hero-sheet { grid-template-columns: 1fr; gap: 34px; padding: 48px; }
  .feature-section, .product-section, .promise-section { padding: 96px 24px; }
  .feature-heading { grid-template-columns: 1fr; gap: 18px; }
  .feature-heading h2 { justify-self: start; }
  .feature-strip { grid-template-columns: 1fr 1fr; }
  .feature-panel { min-height: 520px; border-bottom: 1px solid rgba(23, 33, 26, 0.12); }
  .feature-panel:nth-child(2) { border-right: 0; }
  .feature-panel:nth-last-child(-n+2) { border-bottom: 0; }
  .product-heading { grid-template-columns: 1fr; gap: 28px; }
  .product-stage { grid-template-columns: 1fr; gap: 68px; }
  .screen-selector { max-width: 720px; }
  .device-wrap { min-height: 720px; }
  .promise-statement { grid-template-columns: 1fr; gap: 26px; }
  .start-section { min-height: 760px; grid-template-columns: 1fr; padding: 80px 24px 0; }
  .start-section > img { width: min(520px, 82vw); justify-self: end; margin-top: -80px; }
}

@media (max-width: 640px) {
  :root { --content: calc(100vw - 32px); }
  .site-header { min-height: 66px; padding: 0 16px; }
  .site-header.is-scrolled { min-height: 62px; }
  .wordmark strong { font-size: 23px; }
  .wordmark span { display: none; }
  .header-action { padding: 9px 13px; }
  .hero { min-height: 860px; padding-top: 46vh; }
  .hero-landscape { height: 54vh; min-height: 440px; }
  .hero-landscape img { object-position: 30% center; }
  .hero-sheet { width: 100%; gap: 27px; padding: 38px 20px 42px; border-top-width: 5px; }
  .hero-sheet h1 { font-size: 53px; line-height: 1.02; }
  .hero-intro > p { font-size: 15px; line-height: 1.8; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 17px; margin-top: 24px; }
  .hero-caption { margin-top: 13px; font-size: 10px; line-height: 1.6; }
  .feature-section, .product-section, .promise-section { padding: 76px 16px; }
  .feature-heading { margin-bottom: 34px; }
  .feature-heading p { font-size: 14px; }
  .feature-heading h2 { font-size: 44px; }
  .feature-strip { display: flex; min-height: 500px; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; }
  .feature-strip::-webkit-scrollbar { display: none; }
  .feature-panel { flex: 0 0 84vw; min-height: 500px; border-bottom: 0; scroll-snap-align: start; }
  .feature-panel:nth-child(2) { border-right: 1px solid rgba(23, 33, 26, 0.12); }
  .feature-panel > img { max-height: 355px; }
  .product-heading { margin-bottom: 52px; }
  .product-heading h2 { font-size: 49px; }
  .product-heading p { font-size: 14px; }
  .product-stage { gap: 46px; }
  .screen-selector button { grid-template-columns: 66px 1fr; gap: 12px; padding: 18px 2px; }
  .screen-selector button:hover, .screen-selector button.is-active { padding-left: 8px; }
  .screen-selector strong { font-size: 14px; line-height: 1.6; }
  .device-wrap { min-height: 675px; }
  .device-shadow { width: 94vw; height: 94vw; }
  .device { width: min(326px, 92vw); height: 650px; }
  .promise-statement { padding-bottom: 50px; }
  .promise-statement h2 { font-size: 46px; }
  .promise-list { grid-template-columns: 1fr; }
  .promise-list article, .promise-list article + article { padding: 28px 0; border-left: 0; }
  .start-section { min-height: 720px; padding: 64px 20px 0; }
  .start-copy { padding-bottom: 0; }
  .start-copy h2 { font-size: 58px; }
  .start-section > img { width: min(430px, 108vw); max-width: none; margin-top: -22px; margin-right: -34px; }
  .site-footer { grid-template-columns: 1fr; gap: 26px; padding: 40px 20px; }
  .footer-brand { align-items: flex-start; flex-direction: column; gap: 6px; }
  .footer-links { flex-wrap: wrap; }
  .footer-meta { grid-template-columns: 1fr; align-items: flex-start; gap: 10px; }
  .footer-meta > span:last-child { justify-self: start; }
  .footer-filings { align-items: flex-start; flex-direction: column; gap: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  .hero-landscape img, .hero-sheet { opacity: 1; transform: none; }
}