/* Lift Apps site: light AIYun theme. Ivory paper, bronze ink, champagne gold used sparingly. */
@font-face { font-family: Inter; font-style: normal; font-weight: 100 900; font-display: swap; src: url("/assets/fonts/inter-latin.woff2") format("woff2"); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2190-2199, U+2212, U+2215; }
:root {
  --paper: #FBF8F2; --paper-2: #F6F0E5; --card: #FFFCF7; --ink: #2B1E14;
  --ink-2: rgba(43,30,20,.76); --ink-3: rgba(43,30,20,.7);
  --line: rgba(140,97,58,.16); --line-2: rgba(140,97,58,.3);
  --gold: #CCA06A; --gold-ink: #8C613A; --gold-soft: rgba(204,160,106,.16); --walnut: #6A472D;
  --live: #2F5D4A; --live-bg: rgba(127,164,138,.2);
  --display: "Noto Serif SC", "Songti SC", "STSong", Georgia, serif;
  --body: Inter, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --radius: 18px; color-scheme: light;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--body); font-size: 15.5px; line-height: 1.65; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
h1, h2, h3 { font-family: var(--display); margin: 0; text-wrap: balance; }
p { margin: 0; }
a { color: inherit; }
img, svg { display: block; max-width: 100%; }
.wrap { max-width: 1160px; margin: 0 auto; padding-inline: max(16px, 4vw); }
@media (min-width: 1300px) { .wrap { padding-inline: 20px; } }
.eyebrow { font-size: 11.5px; letter-spacing: .22em; text-transform: uppercase; color: var(--ink-3); font-weight: 500; }
.eyebrow b { color: var(--gold-ink); font-weight: 600; }
html[lang="zh-CN"] .eyebrow { letter-spacing: .1em; }
.lift { color: var(--gold-ink); }
.skip { position: absolute; left: -9999px; top: 8px; background: var(--ink); color: var(--paper); padding: 8px 14px; border-radius: 8px; z-index: 100; }
.skip:focus { left: 8px; }
:focus-visible { outline: 2px solid var(--gold-ink); outline-offset: 3px; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 22px; border-radius: 999px; font-size: 14.5px; font-weight: 500; text-decoration: none; transition: transform .2s, box-shadow .2s, background .2s; white-space: nowrap; }
.btn-sm { padding: 8px 15px; font-size: 13px; }
.btn-gold { background: linear-gradient(180deg, #D8B07C, var(--gold)); color: var(--ink); box-shadow: 0 6px 18px -8px rgba(140,97,58,.55), inset 0 1px 0 rgba(255,251,242,.6); }
.btn-gold:hover { transform: translateY(-1px); }
.btn-ghost { border: 1px solid var(--line-2); color: var(--ink); background: transparent; }
.btn-ghost:hover { background: var(--card); }

/* Nav */
.nav-wrap { position: sticky; top: 0; z-index: 50; background: rgba(251,248,242,.88); backdrop-filter: blur(16px) saturate(1.4); -webkit-backdrop-filter: blur(16px) saturate(1.4); border-bottom: 1px solid var(--line); }
.nav { display: flex; align-items: center; gap: 22px; height: 62px; }
.logo img { height: 28px; width: auto; }
.nav-links { display: flex; gap: 24px; margin-left: auto; font-size: 14px; }
.nav-links a { text-decoration: none; color: var(--ink-2); }
.nav-links a:hover { color: var(--ink); }
.lang-link { font-size: 13px; text-decoration: none; padding: 6px 12px; border: 1px solid var(--line-2); border-radius: 999px; color: var(--ink-2); }
.lang-link:hover { color: var(--ink); background: var(--card); }
@media (max-width: 760px) { .nav-links { display: none; } .lang-link { margin-left: auto; } .nav .btn { display: none; } }

/* Hero */
.hero { position: relative; overflow: hidden; padding-block: 80px 72px; }
.glow { position: absolute; inset: 0; pointer-events: none; background:
  radial-gradient(520px 420px at 88% 0%, rgba(219,190,148,.5), transparent 70%),
  radial-gradient(420px 360px at 70% 100%, rgba(204,160,106,.22), transparent 70%),
  radial-gradient(380px 360px at 0% 45%, rgba(185,205,182,.3), transparent 70%); }
.hero-inner { position: relative; max-width: 820px; }
.hero h1 { font-size: clamp(38px, 6vw, 72px); line-height: 1.06; font-weight: 900; letter-spacing: -.015em; margin-block: 16px 22px; }
html[lang="zh-CN"] .hero h1 { letter-spacing: 0; line-height: 1.16; }
.lede { font-size: 18.5px; color: var(--ink-2); max-width: 54ch; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.trust { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-top: 26px; font-size: 13.5px; color: var(--ink-3); padding: 0; list-style: none; }
.trust li::before { content: "✓"; color: var(--live); font-weight: 700; margin-right: 6px; }

/* Cycle strip */
.cycle { display: grid; grid-template-columns: repeat(9, minmax(0, 1fr)); gap: 10px; margin-top: 56px; padding: 0; list-style: none; }
.cycle a { display: grid; justify-items: center; gap: 4px; text-decoration: none; text-align: center; }
.cycle svg { width: 100%; max-width: 72px; height: auto; filter: drop-shadow(0 8px 12px rgba(106,71,45,.18)); transition: transform .25s; }
.cycle a:hover svg { transform: translateY(-4px); }
.cycle b { font-size: 12px; font-weight: 600; white-space: nowrap; }
.cycle small { font-size: 11px; color: var(--ink-3); line-height: 1.3; }
@media (max-width: 860px) { .cycle { grid-template-columns: repeat(5, minmax(0, 1fr)); row-gap: 18px; } }
@media (max-width: 480px) { .cycle { grid-template-columns: repeat(3, minmax(0, 1fr)); } }

/* Sections */
.section { padding-block: 84px; }
.section.soft { background: var(--paper-2); }
.sec-head { display: grid; gap: 12px; margin-bottom: 36px; max-width: 720px; }
.sec-head h2 { font-size: clamp(27px, 3.4vw, 38px); line-height: 1.22; }
.sec-head p { color: var(--ink-2); }

/* App cards */
.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.card { position: relative; display: grid; grid-template-rows: auto auto 1fr auto; gap: 12px; padding: 20px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); transition: transform .25s, box-shadow .25s, border-color .25s; }
.card:hover { transform: translateY(-2px); border-color: var(--line-2); box-shadow: 0 16px 32px -24px rgba(106,71,45,.5); }
.card-top { display: flex; gap: 14px; align-items: center; }
.card-top svg { width: 54px; height: 54px; flex: none; filter: drop-shadow(0 6px 10px rgba(106,71,45,.16)); }
.name { font-family: var(--display); font-size: 21px; font-weight: 700; line-height: 1.15; }
.role { font-size: 13px; color: var(--ink-3); }
.desc { font-size: 14.5px; color: var(--ink-2); }
.card-foot { display: flex; align-items: center; gap: 10px; padding-top: 12px; border-top: 1px solid var(--line); }
.card-foot .more { margin-left: auto; font-size: 13px; color: var(--ink-2); text-decoration: none; }
.card-foot .more:hover { color: var(--ink); text-decoration: underline; }
.card-foot .open { font-size: 13.5px; font-weight: 600; color: var(--gold-ink); text-decoration: none; }
.card-foot .open:hover { text-decoration: underline; }
.badge { font-size: 11.5px; padding: 3px 10px; border-radius: 999px; white-space: nowrap; color: var(--gold-ink); background: var(--gold-soft); }
.badge.live { color: var(--live); background: var(--live-bg); }
@media (max-width: 960px) { .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 580px) { .cards { grid-template-columns: 1fr; } }

/* Pillars */
.pillars { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.pillar { padding: 24px; border-radius: var(--radius); background: var(--card); border: 1px solid var(--line); display: grid; gap: 10px; align-content: start; }
.pill-num { font-family: var(--display); color: var(--gold-ink); font-size: 22px; }
.pillar h3 { font-size: 18px; }
.pillar p { font-size: 14.5px; color: var(--ink-2); }
@media (max-width: 900px) { .pillars { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px) { .pillars { grid-template-columns: 1fr; } }

/* Start here */
.start { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; counter-reset: s; padding: 0; list-style: none; }
.start li { padding: 22px; border-radius: var(--radius); border: 1px dashed var(--line-2); display: grid; gap: 8px; }
.start li b { font-family: var(--display); font-size: 18px; }
.start li span { font-size: 14.5px; color: var(--ink-2); }
.start a { font-size: 13.5px; font-weight: 600; color: var(--gold-ink); text-decoration: none; }
@media (max-width: 760px) { .start { grid-template-columns: 1fr; } }

/* About */
.about { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr); gap: 40px; }
.about h2 { font-size: clamp(27px, 3.4vw, 38px); margin-top: 12px; }
.about-copy { display: grid; gap: 14px; font-size: 17px; color: var(--ink-2); max-width: 58ch; }
.about-copy .motto { font-family: var(--display); color: var(--gold-ink); }
@media (max-width: 760px) { .about { grid-template-columns: 1fr; gap: 14px; } }

/* App page */
.crumbs { font-size: 13px; color: var(--ink-3); margin-bottom: 26px; }
.crumbs a { color: var(--ink-2); text-decoration: none; }
.crumbs a:hover { text-decoration: underline; }
.app-hero { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 48px; align-items: center; }
.app-hero > svg { width: 100%; height: auto; filter: drop-shadow(0 22px 30px rgba(106,71,45,.25)); }
.app-title { font-size: clamp(42px, 6vw, 72px); line-height: 1.05; font-weight: 900; letter-spacing: -.015em; }
.app-role { font-size: 15px; color: var(--ink-3); margin: 8px 0 16px; }
.feats { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; padding: 0; list-style: none; }
.feats li { display: flex; gap: 12px; padding: 18px 20px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); font-size: 15px; }
.feats li::before { content: "✓"; color: var(--live); font-weight: 700; }
.shot { margin-top: 28px; border-radius: var(--radius); border: 1px solid var(--line); overflow: hidden; background: var(--card); box-shadow: 0 30px 60px -40px rgba(74,52,35,.5); }
.shot img { width: 100%; height: auto; }
.chain { display: flex; flex-wrap: wrap; gap: 8px; padding: 0; list-style: none; }
.chain a { display: flex; align-items: center; gap: 8px; padding: 6px 12px 6px 6px; border-radius: 999px; border: 1px solid var(--line); text-decoration: none; font-size: 13.5px; background: var(--card); }
.chain svg { width: 26px; height: 26px; }
.chain a[aria-current="page"] { border-color: var(--gold); box-shadow: inset 0 0 0 1px var(--gold); font-weight: 600; }
.pager { display: flex; justify-content: space-between; gap: 12px; margin-top: 28px; font-size: 14px; }
.pager a { color: var(--gold-ink); text-decoration: none; font-weight: 500; }
@media (max-width: 760px) { .app-hero { grid-template-columns: 1fr; gap: 20px; } .app-hero > svg { width: 120px; } .feats { grid-template-columns: 1fr; } }

/* Footer */
.footer { border-top: 1px solid var(--line); padding-block: 40px 52px; font-size: 13.5px; color: var(--ink-3); }
.footer-grid { display: grid; grid-template-columns: 1.2fr 2fr; gap: 28px; }
.footer-logo { height: 24px; width: auto; margin-bottom: 12px; }
.footer-apps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 6px 20px; padding: 0; list-style: none; }
.footer-apps a { text-decoration: none; color: var(--ink-2); }
.footer-apps a:hover { color: var(--ink); text-decoration: underline; }
.footer-base { margin-top: 28px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; }
@media (max-width: 700px) { .footer-grid { grid-template-columns: 1fr; } .footer-apps { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

/* 404 */
.notfound { padding-block: 120px; text-align: center; display: grid; gap: 18px; justify-items: center; }
.notfound h1 { font-size: clamp(36px, 5vw, 56px); }
section[id] { scroll-margin-top: 72px; }

/* App page: why / how / summary */
.split { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.4fr); gap: 40px; align-items: start; }
.split .sec-head { margin-bottom: 0; }
.why-text { font-size: 18px; line-height: 1.7; color: var(--ink); }
.pains { margin: 22px 0 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.pains li { display: flex; gap: 12px; align-items: baseline; padding: 14px 18px; border-radius: 14px; background: var(--card); border: 1px solid var(--line); font-size: 15px; color: var(--ink-2); }
.pains li::before { content: "—"; color: #B5603F; font-weight: 700; }
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; padding: 0; list-style: none; }
.steps li { padding: 22px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--card); display: grid; gap: 12px; align-content: start; }
.step-n { width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; background: var(--gold-soft); color: var(--gold-ink); font-family: var(--display); font-weight: 700; }
.steps p { font-size: 15px; color: var(--ink-2); }
.summary { max-width: 820px; display: grid; gap: 18px; }
.summary-text { font-family: var(--display); font-size: clamp(22px, 2.6vw, 30px); line-height: 1.45; font-weight: 700; }
@media (max-width: 860px) { .split { grid-template-columns: 1fr; gap: 20px; } }