/* lightlyn.com brand home. Tokens match the image site (开发/网页版/public/pages.css) so both read as one brand. */
:root{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Noto Sans SC",sans-serif;
  font-synthesis:none;-webkit-font-smoothing:antialiased;color-scheme:light;line-height:1.65;
  --bg:#faf9f6;--surface:#fff;--soft:#f1f0ed;--line:#e6e4dd;--ink:#262624;--muted:#85847e;--secondary:#62615b;
  --accent:#e8b44c;--accent-ink:#3a2a08;--accent-soft:#f7ecd3;--gold:#8c7651;
  --light:#16a874;--fast:#d4561f;--control:#2f6fd6;
  --header:#faf9f6d9;--shadow:0 18px 50px #3833261a;
}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){
  color-scheme:dark;--bg:#0f0f11;--surface:#18181b;--soft:#1e1e22;--line:#2c2c31;--ink:#ededed;--muted:#8a8a93;--secondary:#a1a1aa;
  --accent-ink:#141414;--accent-soft:#2b2417;--gold:#d2b47a;--light:#3fd99b;--fast:#ff8a50;--control:#6ea4ff;--header:#0f0f11d9;--shadow:0 18px 50px #00000059;
}}
:root[data-theme=dark]{
  color-scheme:dark;--bg:#0f0f11;--surface:#18181b;--soft:#1e1e22;--line:#2c2c31;--ink:#ededed;--muted:#8a8a93;--secondary:#a1a1aa;
  --accent-ink:#141414;--accent-soft:#2b2417;--gold:#d2b47a;--light:#3fd99b;--fast:#ff8a50;--control:#6ea4ff;--header:#0f0f11d9;--shadow:0 18px 50px #00000059;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;background:var(--bg);color:var(--ink)}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-underline-offset:4px;text-decoration-thickness:1px}
a:hover{color:var(--gold)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
.skip{position:fixed;left:16px;top:-80px;z-index:50;background:var(--surface);padding:10px 14px;border-radius:8px}
.skip:focus{top:10px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.wrap{max-width:1180px;margin:0 auto;padding:0 32px}
h1,h2,h3{font-weight:620;line-height:1.18;margin:0;letter-spacing:-.02em}
:is(html[lang^=zh],html[lang=ja],html[lang=ko]) :is(h1,h2,h3){letter-spacing:0}
.eyebrow{display:inline-block;font-size:12px;font-weight:650;letter-spacing:.14em;text-transform:uppercase;color:var(--gold);margin:0 0 14px}
.fine{font-size:13px;color:var(--muted)}
section{padding:96px 0}
.section-head{max-width:720px;margin-bottom:44px}
.section-head h2{font-size:clamp(28px,3.4vw,40px)}
.section-head p{color:var(--secondary);font-size:17px;margin:14px 0 0}
.band{background:var(--soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* Header */
.site-header{position:sticky;top:0;z-index:20;background:var(--header);backdrop-filter:saturate(1.4) blur(14px);-webkit-backdrop-filter:saturate(1.4) blur(14px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;gap:28px;height:68px}
.mark{display:flex;align-items:center;gap:9px;font-size:22px;font-weight:720;letter-spacing:-.8px;text-decoration:none}
.mark img{width:30px;height:30px}
.site-nav{display:flex;gap:24px;font-size:14px;margin-right:auto}
.site-nav a{text-decoration:none;color:var(--secondary)}
.site-nav a:hover{color:var(--ink)}
.header-actions{display:flex;align-items:center;gap:10px}
.lang{position:relative;display:flex;align-items:center}
.lang select{appearance:none;-webkit-appearance:none;font:inherit;font-size:13px;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:7px 30px 7px 14px;cursor:pointer}
.lang::after{content:"";position:absolute;right:13px;width:6px;height:6px;border:solid var(--muted);border-width:0 1.5px 1.5px 0;transform:translateY(-2px) rotate(45deg);pointer-events:none}
.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--accent);color:var(--accent-ink);border:1px solid transparent;border-radius:999px;padding:11px 22px;font-size:15px;font-weight:620;text-decoration:none;white-space:nowrap;transition:transform .15s ease,box-shadow .15s ease}
.button:hover{color:var(--accent-ink);transform:translateY(-1px);box-shadow:0 8px 22px #e8b44c40}
.button.small{padding:8px 16px;font-size:14px}
.button.quiet{background:var(--surface);color:var(--ink);border-color:var(--line)}
.button.quiet:hover{box-shadow:none;border-color:var(--muted)}
.arrow::after{content:"→";font-weight:400}

/* Hero */
.hero{position:relative;padding:112px 0 88px;overflow:hidden;text-align:center}
.hero::before{content:"";position:absolute;inset:-30% -10% auto;height:620px;z-index:-1;background:radial-gradient(420px 260px at 26% 46%,#16a87420,transparent 70%),radial-gradient(420px 260px at 52% 30%,#d4561f1c,transparent 70%),radial-gradient(460px 280px at 76% 50%,#2f6fd61f,transparent 70%)}
.hero h1{font-size:clamp(42px,6.4vw,80px);line-height:1.08;max-width:15em;margin:0 auto}
.hero h1 .w1{color:var(--light)}.hero h1 .w2{color:var(--fast)}.hero h1 .w3{color:var(--control)}
.hero .lead{font-size:19px;color:var(--secondary);max-width:640px;margin:26px auto 0}
.hero .actions{display:flex;justify-content:center;flex-wrap:wrap;gap:12px;margin-top:36px}

/* Products */
.products{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.product{background:var(--surface);border:1px solid var(--line);border-radius:26px;padding:34px;display:flex;flex-direction:column;overflow:hidden}
.product .status{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:580;padding:5px 12px;border-radius:999px;align-self:flex-start}
.status.live{background:#16a8741a;color:var(--light)}
.status.live::before,.status.soon::before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor}
.status.soon{background:var(--soft);color:var(--secondary)}
.product h3{font-size:30px;margin:18px 0 10px}
.product p{color:var(--secondary);margin:0}
.product .slogan{font-size:19px;font-weight:600;color:var(--gold);margin:-2px 0 12px}
.product ul{list-style:none;padding:0;margin:20px 0 26px;color:var(--secondary);font-size:15px;flex:1}
.product li{padding:6px 0 6px 24px;position:relative}
.product li::before{content:"";position:absolute;left:2px;top:13px;width:10px;height:6px;border:solid var(--gold);border-width:0 0 2px 2px;transform:rotate(-45deg)}
.product .actions{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.strip{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:26px -6px 0}
.strip img{border-radius:12px;aspect-ratio:3/4;object-fit:cover;width:100%;background:var(--soft)}
.mac-visual{margin:26px 0 0;border:1px solid var(--line);border-radius:16px;background:var(--soft);padding:16px;font-size:13px;color:var(--secondary)}
.mac-visual .file{display:flex;align-items:center;gap:10px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:10px 12px;font-weight:560;color:var(--ink)}
.mac-visual .file span{font-size:11px;font-weight:700;letter-spacing:.06em;background:var(--accent-soft);color:var(--gold);border-radius:6px;padding:3px 6px}
.mac-visual .chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.mac-visual .chips span{background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:5px 11px}

/* Page-level spacing that used to be inline styles */
.products-section{padding-top:24px}
.product .fine{margin:14px 0 0}
.mac-more{margin-top:44px}.mac-more .fine{margin:18px 0 0}
.account h2{font-size:clamp(28px,3.4vw,40px)}
.account-lead{color:var(--secondary);font-size:17px;margin:14px 0 26px}

/* Pillars */
.grid{display:grid;gap:18px}
.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}
.card{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:28px}
.card h3{font-size:20px;margin:12px 0 8px}
.card p{margin:0;color:var(--secondary)}
.card .tag{font-size:13px;font-weight:650;letter-spacing:.06em;color:var(--gold)}
.list{columns:2;column-gap:40px;padding:0;list-style:none;margin:0}
.list li{break-inside:avoid;padding:12px 0;border-bottom:1px solid var(--line)}
.list strong{display:block}
.list span{color:var(--secondary);font-size:15px}

/* Account band */
.account{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.account .facts{display:grid;gap:12px}
.fact{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:18px 20px}
.fact strong{display:block;font-size:22px}
.fact span{color:var(--secondary);font-size:14.5px}
.plans{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.plan{display:grid;gap:2px;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:10px 10px 14px;text-decoration:none;transition:border-color .15s ease,transform .15s ease}
.plan:hover{color:inherit;border-color:var(--muted);transform:translateY(-1px)}
.plan img{width:100%;aspect-ratio:1;object-fit:cover;border-radius:10px;margin-bottom:10px;background:var(--soft)}
.plan strong{font-size:17px;padding:0 4px}
.plan span{font-size:13.5px;color:var(--secondary);padding:0 4px}

/* Footer */
.site-footer{border-top:1px solid var(--line);padding:56px 0 40px;font-size:14px;color:var(--secondary)}
.site-footer .cols{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:32px}
.site-footer h4{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin:4px 0 14px;font-weight:650}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin:8px 0}
.site-footer a{text-decoration:none}
.site-footer a:hover{text-decoration:underline}
.site-footer .about p{margin:14px 0 0;max-width:330px}
.site-footer .legal-line{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px 24px;margin-top:44px;padding-top:22px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}

@media (max-width:980px){
  .products,.account{grid-template-columns:minmax(0,1fr)}
  .grid.three{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .site-footer .cols{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  .wrap{padding:0 16px}
  .site-nav{display:none}
  .site-header .wrap{height:60px;gap:12px}
  .header-actions{margin-left:auto}
  section{padding:64px 0}
  .hero{padding:64px 0 48px}
  .hero .lead{font-size:17px}
  .product{padding:24px}
  .product h3{font-size:26px}
  .grid.three{grid-template-columns:minmax(0,1fr)}
  .list{columns:1}
  .site-footer .cols{grid-template-columns:1fr}
}
@media (max-width:420px){.header-actions .button{display:none}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.button,.plan{transition:none}}