/* 台股快照資料庫 landing — ledger-tone light (rebrand 2026-07-06).
   Craft bar (AGENTS.md / Emil): animate transform+opacity ONLY, ease-out
   cubic-bezier(0.23,1,0.32,1), UI motion <300ms, :active scale(0.97),
   hover wrapped in @media (hover:hover) and (pointer:fine),
   no transition:all / no ease-in / no scale(0) entrances, @starting-style entrances.
   Zero web fonts: system stacks only (-apple-system / PingFang TC). */
:root{
  --bg:#f7f6f3;
  --card:rgba(255,255,255,.66); --card-strong:rgba(255,255,255,.78);
  --bd:rgba(0,0,0,.06); --bd2:rgba(0,0,0,.11);
  --fg:#1d1d1f; --mut:#6e6e73; --mut2:#86868b;
  --acc:#0f3d3e; --acc-ink:#0c3233; --acc-soft:rgba(15,61,62,.07);
  --good:#1d7a4f; --good-soft:rgba(29,122,79,.1);
  --warn:#9a6200; --warn-soft:rgba(154,98,0,.1);
  --bad:#d70015; --bad-soft:rgba(215,0,21,.08);
  --ink-bg:#1d1d1f; --ink-fg:#f5f5f7; --ink-mut:#9d9da3;
  --r:18px; --rs:12px;
  --ease:cubic-bezier(.23,1,.32,1);
  --glass-shadow:0 1px 2px rgba(0,0,0,.04),0 16px 40px -12px rgba(0,0,0,.08);
  --glass-glow:inset 0 1px 0 rgba(255,255,255,.85);
  --mono:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,monospace;
  --sans:-apple-system,BlinkMacSystemFont,"SF Pro Text","Helvetica Neue","PingFang TC","Noto Sans TC","Microsoft JhengHei",sans-serif;
  --serif:"New York","Songti TC","Noto Serif TC",Georgia,"Times New Roman",serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
}
body{
  background:var(--bg);color:var(--fg);font-family:var(--sans);font-variant-numeric:tabular-nums;
  font-size:16px;line-height:1.62;-webkit-font-smoothing:antialiased;
  overflow-x:clip;position:relative;
}
/* ambient light wash — without it the glass reads as flat white */
body::before{
  content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(58% 42% at 50% -6%,rgba(15,61,62,.06),transparent 70%),
    radial-gradient(42% 34% at 88% 12%,rgba(122,109,80,.05),transparent 70%),
    radial-gradient(50% 40% at 6% 62%,rgba(15,61,62,.04),transparent 72%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(29,29,31,.028) 1px,transparent 1px),
    linear-gradient(90deg,rgba(29,29,31,.028) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(ellipse 78% 52% at 50% 0%,#000 25%,transparent 74%);
  -webkit-mask-image:radial-gradient(ellipse 78% 52% at 50% 0%,#000 25%,transparent 74%);
}
a{color:inherit;text-decoration:none}
:focus-visible{outline:2px solid var(--acc);outline-offset:2px;border-radius:6px}
::selection{background:rgba(15,61,62,.16)}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
@supports(padding:max(0px)){
  .wrap{padding-left:max(24px,env(safe-area-inset-left));padding-right:max(24px,env(safe-area-inset-right))}
}
.mono{font-family:var(--mono)}
.grad-text{color:var(--acc-ink);box-shadow:inset 0 -0.08em 0 rgba(15,61,62,.18)}
.eyebrow{font-size:13px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--acc-ink)}
.skip{position:absolute;left:-9999px;top:0;background:var(--acc);color:#fff;padding:10px 18px;border-radius:0 0 10px 0;z-index:200;font-weight:600}
.skip:focus{left:0}

/* ── glass primitives ── */
.glass{
  background:var(--card);
  -webkit-backdrop-filter:blur(20px) saturate(180%);backdrop-filter:blur(20px) saturate(180%);
  border:1px solid var(--bd);border-radius:var(--r);
  box-shadow:var(--glass-glow),var(--glass-shadow);
}

/* ── nav ── */
nav{position:sticky;top:0;z-index:50;
  background:rgba(245,245,247,.72);
  -webkit-backdrop-filter:blur(20px) saturate(180%);backdrop-filter:blur(20px) saturate(180%);
  border-bottom:1px solid var(--bd)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:60px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--serif);font-weight:600;font-size:20px;letter-spacing:-.005em;color:var(--fg)}
.logo{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;flex:none;
  background:linear-gradient(160deg,#1a5354,#0f3d3e 62%,#0c3233);color:#fff;font-weight:700;font-size:15px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.4),0 4px 12px rgba(15,61,62,.26)}
.brand-sub{font-size:12px;font-weight:500;color:var(--mut);margin-left:8px;letter-spacing:.02em;white-space:nowrap}
.nav-links{display:flex;gap:24px;align-items:center;font-size:14px;color:var(--mut)}
@media (hover:hover) and (pointer:fine){.nav-links a:not(.btn):hover{color:var(--fg)}}
/* ── mobile nav: hamburger + slide-down glass menu ── */
.menu-btn{display:none;width:44px;height:44px;border:1px solid var(--bd);border-radius:12px;
  background:var(--card);cursor:pointer;place-items:center;
  -webkit-backdrop-filter:blur(20px) saturate(180%);backdrop-filter:blur(20px) saturate(180%);
  transition:transform .15s var(--ease)}
.menu-btn:active{transform:scale(.94)}
.menu-btn .bars{position:relative;display:block;width:17px;height:2px;background:var(--fg);border-radius:2px;
  transition:transform .2s var(--ease),background .2s var(--ease)}
.menu-btn .bars::before,.menu-btn .bars::after{content:"";position:absolute;left:0;width:17px;height:2px;
  background:var(--fg);border-radius:2px;transition:transform .2s var(--ease),top .2s var(--ease)}
.menu-btn .bars::before{top:-5.5px}
.menu-btn .bars::after{top:5.5px}
.menu-btn[aria-expanded="true"] .bars{background:transparent}
.menu-btn[aria-expanded="true"] .bars::before{top:0;transform:rotate(45deg)}
.menu-btn[aria-expanded="true"] .bars::after{top:0;transform:rotate(-45deg)}
.m-menu{display:grid;grid-template-rows:0fr;border-top:1px solid transparent;
  background:var(--card-strong);
  -webkit-backdrop-filter:blur(24px) saturate(180%);backdrop-filter:blur(24px) saturate(180%);
  transition:grid-template-rows .24s var(--ease),border-color .24s var(--ease)}
.m-menu>.m-menu-in{overflow:hidden;min-height:0}
.m-menu.open{grid-template-rows:1fr;border-top-color:var(--bd)}
.m-menu .mlink{display:flex;align-items:center;min-height:48px;padding:0 24px;font-size:16px;font-weight:600;color:var(--fg);
  border-bottom:1px solid var(--bd)}
.m-menu .mlink:active{background:rgba(0,0,0,.04)}
.m-menu-foot{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:16px 24px;
  padding-bottom:max(16px,env(safe-area-inset-bottom))}
@media (prefers-reduced-motion:no-preference){
  .m-menu.open .mlink{animation:mIn .22s var(--ease) both}
  .m-menu.open .mlink:nth-child(1){animation-delay:20ms}.m-menu.open .mlink:nth-child(2){animation-delay:50ms}
  .m-menu.open .mlink:nth-child(3){animation-delay:80ms}.m-menu.open .mlink:nth-child(4){animation-delay:110ms}
  .m-menu.open .mlink:nth-child(5){animation-delay:140ms}.m-menu.open .mlink:nth-child(6){animation-delay:170ms}
  @keyframes mIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}
}
@media(max-width:820px){
  .nav-links{display:none}
  .brand-sub{display:none}
  .menu-btn{display:grid}
}
@media(min-width:821px){.m-menu{display:none}}
.m-menu .m-menu-in{max-height:calc(100dvh - 61px);overflow-y:auto;overscroll-behavior:contain}

/* ── buttons (hover color swap is instant by design; motion = transform only) ── */
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:14px;
  padding:10px 18px;border-radius:980px;border:1px solid transparent;cursor:pointer;
  white-space:nowrap;line-height:1.2;
  transition:transform .18s var(--ease)}
.btn:active{transform:scale(.97)}
.btn-primary{background:var(--acc);color:#fff;box-shadow:inset 0 1px 0 rgba(255,255,255,.22),0 4px 14px rgba(15,61,62,.28)}
.btn-ghost{border-color:var(--bd2);color:var(--fg);background:rgba(255,255,255,.5)}
@media (hover:hover) and (pointer:fine){
  .btn-primary:hover{background:#155152;transform:translateY(-1px)}
  .btn-primary:hover:active{transform:scale(.97)}
  .btn-ghost:hover{border-color:var(--acc);color:var(--acc-ink);transform:translateY(-1px)}
  .btn-ghost:hover:active{transform:scale(.97)}
}
.btn-lg{padding:14px 28px;font-size:16px}

/* ── language toggle: glass pill ── */
.lang-toggle{display:inline-flex;align-items:center;padding:3px;border-radius:980px;
  border:1px solid var(--bd);background:var(--card);
  -webkit-backdrop-filter:blur(20px) saturate(180%);backdrop-filter:blur(20px) saturate(180%);
  box-shadow:var(--glass-glow);font-size:12.5px;font-family:var(--mono)}
.lang-toggle a{color:var(--mut);padding:5px 12px;border-radius:980px;line-height:1.2;
  transition:transform .15s var(--ease)}
.lang-toggle a:active{transform:scale(.97)}
.lang-toggle a.act{background:#fff;color:var(--fg);font-weight:700;
  box-shadow:0 1px 3px rgba(0,0,0,.1),0 0 0 1px var(--bd)}
@media (hover:hover) and (pointer:fine){.lang-toggle a:not(.act):hover{color:var(--fg)}}

/* ── hero ── */
.hero{padding:88px 0 30px;text-align:center}
.pill{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;color:var(--acc-ink);font-weight:500;
  border:1px solid rgba(15,61,62,.20);background:rgba(255,255,255,.55);
  -webkit-backdrop-filter:blur(12px) saturate(160%);backdrop-filter:blur(12px) saturate(160%);
  border-radius:980px;padding:6px 15px;margin-bottom:26px;box-shadow:var(--glass-glow)}
.dot{width:7px;height:7px;border-radius:50%;background:var(--acc);flex:none;animation:pulse 2s var(--ease) infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.hero h1{font-family:var(--serif);font-size:clamp(34px,5.8vw,58px);line-height:1.14;font-weight:600;letter-spacing:-.015em;margin:0 auto 20px;max-width:22ch;color:var(--fg)}
html[lang="zh-Hant"] .hero h1{max-width:32ch}
.hero .lead{font-size:clamp(16px,2.2vw,19px);color:var(--mut);max-width:660px;margin:0 auto 30px}
.hero .lead strong{color:var(--fg);font-weight:600}
.cta-row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-bottom:12px}
.cta-note{font-size:13px;color:var(--mut)}

/* hero entrance — @starting-style, 30-80ms stagger, opacity+transform only */
@media (prefers-reduced-motion:no-preference){
  .rise{transition:opacity .26s var(--ease),transform .26s var(--ease)}
  .rise.d1{transition-delay:40ms}.rise.d2{transition-delay:80ms}
  .rise.d3{transition-delay:120ms}.rise.d4{transition-delay:160ms}
  @starting-style{.rise{opacity:0;transform:translateY(10px)}}
}

/* ── one-line curl chip (dark ink glass) ── */
.curl{max-width:760px;margin:34px auto 0;text-align:left;border-radius:14px;overflow:hidden;
  background:var(--ink-bg);border:1px solid rgba(0,0,0,.24);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 24px 60px -24px rgba(29,29,31,.5)}
.curl-bar{display:flex;align-items:center;gap:7px;padding:10px 14px;border-bottom:1px solid rgba(255,255,255,.08)}
.tdot{width:10px;height:10px;border-radius:50%}
.tdot.r{background:#ff5f57}.tdot.y{background:#febc2e}.tdot.g{background:#28c840}
.curl-title{margin-left:6px;font-size:12px;color:var(--ink-mut);font-family:var(--mono)}
.curl-line{padding:14px 16px;font-family:var(--mono);font-size:13px;line-height:1.7;color:var(--ink-fg);
  overflow-x:auto;white-space:pre}
.curl-line .pmt{color:#66d9ff}
.curl-line .str{color:#8ce99a}
.curl-line .hdr{color:#ffd479}
.curl-cap{padding:0 16px 14px;font-family:var(--mono);font-size:12px;color:var(--ink-mut)}
.curl-cap b{color:#8ce99a;font-weight:600}

/* ── sections ── */
main{display:block}
section{padding:64px 0;position:relative}
.sec-head{text-align:center;max-width:680px;margin:0 auto 44px}
.sec-head h2{font-family:var(--serif);font-size:clamp(27px,3.8vw,38px);font-weight:600;letter-spacing:-.01em;margin:12px 0;line-height:1.18;color:var(--fg)}
.sec-head p{color:var(--mut);font-size:16.5px}

/* ── trust badges (3 glass chips) ── */
.badges{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media(max-width:840px){.badges{grid-template-columns:1fr}}
.badge{position:relative;padding:24px 22px;border-radius:var(--r);
  background:var(--card);border:1px solid var(--bd);
  -webkit-backdrop-filter:blur(20px) saturate(180%);backdrop-filter:blur(20px) saturate(180%);
  box-shadow:var(--glass-glow),var(--glass-shadow)}
.badge .bic{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;margin-bottom:14px;
  background:var(--acc-soft);color:var(--acc-ink);border:1px solid rgba(15,61,62,.14)}
.badge .bic svg{width:20px;height:20px}
.badge h3{font-size:16.5px;font-weight:700;margin-bottom:8px;letter-spacing:-.01em}
.badge p{color:var(--mut);font-size:13.5px;line-height:1.65}
.badge p strong{color:var(--fg);font-weight:600}

/* ── feature cards (glass grid) ── */
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media(max-width:960px){.pillars{grid-template-columns:repeat(2,1fr)}}
@media(max-width:680px){.pillars{grid-template-columns:1fr}}
.pcard{position:relative;padding:26px 24px;border-radius:var(--r);overflow:hidden;
  background:var(--card);border:1px solid var(--bd);
  -webkit-backdrop-filter:blur(20px) saturate(180%);backdrop-filter:blur(20px) saturate(180%);
  box-shadow:var(--glass-glow),var(--glass-shadow);
  transition:transform .2s var(--ease)}
.pcard::after{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  box-shadow:0 24px 56px -16px rgba(12,50,51,.15),0 0 0 1px rgba(15,61,62,.13);
  opacity:0;transition:opacity .2s var(--ease)}
@media (hover:hover) and (pointer:fine){
  .pcard:hover{transform:translateY(-4px)}
  .pcard:hover::after{opacity:1}
}
.pnum{font-family:var(--mono);font-size:13px;color:var(--acc-ink);font-weight:600;margin-bottom:14px;
  display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;
  background:var(--acc-soft);border:1px solid rgba(15,61,62,.14)}
.pcard h3{font-size:18px;font-weight:700;margin-bottom:9px;letter-spacing:-.012em}
.pcard p{color:var(--mut);font-size:14px;line-height:1.66}
.pcard p strong{color:var(--fg);font-weight:600}
.pcard .tag{display:inline-block;margin-top:14px;font-size:12px;font-family:var(--mono);
  color:var(--acc-ink);background:var(--acc-soft);border:1px solid rgba(15,61,62,.14);
  padding:3px 10px;border-radius:8px}

/* ── snapshot concept diagram (pure CSS/SVG) ── */
.how-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:22px}
@media(max-width:840px){.how-grid{grid-template-columns:1fr}}
.lane{padding:24px 22px;border-radius:var(--r);
  background:var(--card);border:1px solid var(--bd);
  -webkit-backdrop-filter:blur(20px) saturate(180%);backdrop-filter:blur(20px) saturate(180%);
  box-shadow:var(--glass-glow),var(--glass-shadow)}
.lane.them{background:rgba(255,255,255,.5)}
.lane.us{border-color:rgba(15,61,62,.26);
  box-shadow:var(--glass-glow),0 1px 2px rgba(0,0,0,.04),0 20px 48px -16px rgba(0,90,180,.18)}
.lane h3{font-size:15px;font-weight:700;margin-bottom:16px;display:flex;align-items:center;gap:9px}
.lane.them h3{color:var(--mut)}
.lane.us h3{color:var(--acc-ink)}
.lane h3 .lic{width:22px;height:22px;border-radius:7px;display:grid;place-items:center;font-size:12px;font-weight:700;flex:none}
.lane.them h3 .lic{background:var(--bad-soft);color:var(--bad)}
.lane.us h3 .lic{background:var(--acc-soft);color:var(--acc-ink)}
.timeline{position:relative;padding-left:2px}
.timeline::before{content:"";position:absolute;left:11px;top:8px;bottom:8px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,rgba(0,0,0,.1),rgba(0,0,0,.05))}
.lane.us .timeline::before{background:linear-gradient(180deg,rgba(15,61,62,.38),rgba(15,61,62,.09))}
.tl-item{position:relative;padding:0 0 16px 34px;font-size:13.5px;color:var(--mut);line-height:1.55}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:6px;top:5px;width:12px;height:12px;border-radius:50%;
  background:var(--bg);border:2px solid var(--mut2)}
.lane.us .tl-item::before{border-color:var(--acc)}
.tl-item.freeze::before{background:var(--acc)}
.tl-item.bad::before{border-color:var(--bad);background:var(--bad-soft)}
.tl-item .tld{display:block;font-family:var(--mono);font-size:11.5px;color:var(--mut2);margin-bottom:2px}
.tl-item b{color:var(--fg);font-weight:600}
.tl-item .val{font-family:var(--mono);font-weight:600}
.tl-item .old{text-decoration:line-through;color:var(--mut2);font-weight:400}
.tl-item .chip{display:inline-block;font-family:var(--mono);font-size:11px;padding:2px 8px;border-radius:7px;margin-top:5px}
.tl-item .chip.ok{background:var(--good-soft);color:var(--good);border:1px solid rgba(29,122,79,.2)}
.tl-item .chip.err{background:var(--bad-soft);color:var(--bad);border:1px solid rgba(215,0,21,.16)}
.how-note{max-width:880px;margin:0 auto;padding:22px 26px;border-radius:var(--r);
  background:var(--card);border:1px solid var(--bd);
  -webkit-backdrop-filter:blur(20px) saturate(180%);backdrop-filter:blur(20px) saturate(180%);
  box-shadow:var(--glass-glow),var(--glass-shadow)}
.how-note p{font-size:14px;color:var(--mut);line-height:1.7;margin-bottom:8px}
.how-note p:last-of-type{margin-bottom:12px}
.how-note strong{color:var(--fg);font-weight:600}

/* ── vs comparison ── */
.vs-wrap{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:stretch}
@media(max-width:760px){.vs-wrap{grid-template-columns:1fr}}
.vs-col{border:1px solid var(--bd);border-radius:var(--r);padding:26px 24px;
  background:var(--card);
  -webkit-backdrop-filter:blur(20px) saturate(180%);backdrop-filter:blur(20px) saturate(180%);
  box-shadow:var(--glass-glow),var(--glass-shadow)}
.vs-col.them{background:rgba(255,255,255,.48)}
.vs-col h3{font-size:15px;font-weight:700;margin-bottom:16px;display:flex;align-items:center;gap:10px}
.vs-col.them h3{color:var(--mut)}
.vs-col.us{border-color:rgba(15,61,62,.26)}
.vs-col.us h3{color:var(--acc-ink)}
.vs-li{display:flex;gap:12px;padding:11px 0;border-top:1px solid var(--bd);font-size:14px;color:var(--mut)}
.vs-li:first-of-type{border-top:0}
.vs-li strong{color:inherit;font-weight:600}
.vs-li.yes strong{color:var(--fg)}
.vs-li .ic{flex:none;width:20px;height:20px;border-radius:7px;display:grid;place-items:center;font-size:11px;font-weight:700;margin-top:2px}
.vs-li.no .ic{background:var(--bad-soft);color:var(--bad)}
.vs-li.yes .ic{background:var(--good-soft);color:var(--good)}
.vs-li.yes{color:var(--fg)}

/* ── tiers ── */
.tiers{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:start}
@media(max-width:900px){.tiers{grid-template-columns:1fr;max-width:440px;margin:0 auto}}
.tier{position:relative;border:1px solid var(--bd);border-radius:var(--r);padding:28px 24px;
  background:var(--card);
  -webkit-backdrop-filter:blur(20px) saturate(180%);backdrop-filter:blur(20px) saturate(180%);
  box-shadow:var(--glass-glow),var(--glass-shadow);
  transition:transform .2s var(--ease)}
.tier::after{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  box-shadow:0 24px 56px -16px rgba(0,80,160,.14);opacity:0;transition:opacity .2s var(--ease)}
@media (hover:hover) and (pointer:fine){
  .tier:hover{transform:translateY(-3px)}
  .tier:hover::after{opacity:1}
}
.tier.feat{border-color:rgba(15,61,62,.30);background:var(--card-strong);
  box-shadow:var(--glass-glow),0 1px 2px rgba(0,0,0,.04),0 28px 64px -20px rgba(0,90,180,.24)}
.tier .ribbon{position:absolute;top:-13px;left:50%;transform:translateX(-50%);font-size:11px;font-weight:700;
  letter-spacing:.08em;color:#fff;background:var(--acc);
  padding:5px 14px;border-radius:980px;white-space:nowrap;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.25),0 6px 16px rgba(15,61,62,.32)}
.tier h3{font-size:17px;font-weight:700;margin-bottom:4px}
.tier .who{font-size:13px;color:var(--mut);margin-bottom:16px;min-height:34px}
.price{display:flex;align-items:baseline;gap:6px;margin-bottom:4px}
.price .amt{font-size:38px;font-weight:700;letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.price .cur{font-size:15px;color:var(--mut);font-weight:600}
.price .per{font-size:14px;color:var(--mut)}
.price.free .amt{color:var(--acc-ink)}
.tier .keyline{font-size:12.5px;color:var(--mut);font-family:var(--mono);margin:14px 0 18px;padding-bottom:16px;border-bottom:1px solid var(--bd)}
.tier ul{list-style:none;display:flex;flex-direction:column;gap:11px;margin-bottom:22px}
.tier li{display:flex;gap:10px;font-size:14px;color:var(--mut);align-items:flex-start}
.tier li .ck{flex:none;width:18px;height:18px;border-radius:6px;display:grid;place-items:center;font-size:11px;font-weight:700;margin-top:2px}
.tier li.on{color:var(--fg)}
.tier li.on .ck{background:var(--good-soft);color:var(--good)}
.tier li.off{color:var(--mut2)}
.tier li.off .ck{background:rgba(0,0,0,.05);color:var(--mut2)}
.tier li.star .ck{background:var(--acc-soft);color:var(--acc-ink)}
.tier li b{color:inherit;font-weight:600}
.tier .tbtn{width:100%;justify-content:center}

/* ── coverage ── */
.cov-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}
.cov{border:1px solid var(--bd);border-radius:var(--rs);padding:20px;position:relative;
  background:var(--card);
  -webkit-backdrop-filter:blur(20px) saturate(180%);backdrop-filter:blur(20px) saturate(180%);
  box-shadow:var(--glass-glow),0 1px 2px rgba(0,0,0,.03),0 10px 28px -12px rgba(0,0,0,.07)}
.cov-top{display:flex;align-items:center;gap:11px;margin-bottom:12px}
.cov-ic{font-size:20px}
.cov h3{font-size:15px;font-weight:700}
.cov .what{font-size:13px;color:var(--mut);line-height:1.55;min-height:58px}
.cov-stat{display:flex;gap:16px;margin-top:14px;padding-top:14px;border-top:1px solid var(--bd);font-size:12px;flex-wrap:wrap}
.cov-stat b{display:block;font-size:18px;font-weight:700;color:var(--fg);font-family:var(--mono);letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.cov-stat span{color:var(--mut)}
.serve-badge{position:absolute;top:14px;right:14px;font-size:10px;font-weight:600;padding:2px 8px;border-radius:7px;font-family:var(--mono)}
.serve-badge.pub{background:var(--good-soft);color:var(--good);border:1px solid rgba(29,122,79,.2)}
.serve-badge.int{background:rgba(0,0,0,.045);color:var(--mut);border:1px solid var(--bd2)}
.cov-foot{text-align:center;margin-top:26px;font-size:13px;color:var(--mut)}

/* ── live demo (dark ink response panel on glass shell) ── */
.demo{border:1px solid var(--bd);border-radius:var(--r);overflow:hidden;
  background:var(--card-strong);
  -webkit-backdrop-filter:blur(20px) saturate(180%);backdrop-filter:blur(20px) saturate(180%);
  box-shadow:var(--glass-glow),var(--glass-shadow)}
.demo-head{padding:20px 24px;border-bottom:1px solid var(--bd);display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between}
.demo-controls{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.demo input,.demo select{background:rgba(255,255,255,.8);border:1px solid var(--bd2);color:var(--fg);
  border-radius:10px;padding:9px 12px;font-size:14px;font-family:var(--mono);outline:none}
.demo input:focus-visible,.demo select:focus-visible{outline:2px solid var(--acc);outline-offset:1px;border-color:var(--acc)}
.demo input{width:110px}
.demo select{cursor:pointer}
.demo-tabs{display:flex;gap:6px;flex-wrap:wrap;padding:16px 24px 0}
.dtab{font-size:13px;padding:7px 14px;border-radius:980px;cursor:pointer;color:var(--mut);
  border:1px solid transparent;font-family:var(--mono);white-space:nowrap;
  transition:transform .15s var(--ease)}
.dtab:active{transform:scale(.97)}
@media (hover:hover) and (pointer:fine){.dtab:not(.act):hover{color:var(--fg);background:rgba(0,0,0,.04)}}
.dtab.act{color:var(--acc-ink);background:#fff;border-color:var(--bd);font-weight:600;
  box-shadow:0 1px 3px rgba(0,0,0,.08)}
.demo-req{padding:14px 24px 0;font-family:var(--mono);font-size:12.5px;color:var(--mut);word-break:break-all}
.demo-req .verb{color:var(--good);font-weight:700}
.demo-req .url{color:var(--fg)}
.demo-req .hdr{color:var(--acc-ink)}
.resp{margin:14px 24px 24px;background:var(--ink-bg);border:1px solid rgba(0,0,0,.2);border-radius:12px;
  padding:16px 18px;font-family:var(--mono);font-size:12.5px;line-height:1.7;max-height:340px;overflow:auto;
  white-space:pre-wrap;word-break:break-word;color:var(--ink-fg);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07)}
.resp .status{display:inline-block;font-weight:700;padding:1px 9px;border-radius:7px;margin-bottom:10px;font-size:11px}
.resp .s200{background:rgba(140,233,154,.16);color:#8ce99a}
.resp .s402{background:rgba(255,212,121,.16);color:#ffd479}
.resp .s404{background:rgba(255,138,128,.16);color:#ff8a80}
.jk{color:#66d9ff}.js{color:#8ce99a}.jn{color:#ffd479}.jb{color:#d3bfff}
.demo-hint{font-size:12px;color:var(--mut);padding:0 24px 18px;font-family:var(--mono)}
.demo-hint a{color:var(--acc-ink)}
.offline{color:var(--warn)}

/* ── FAQ ── */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:820px;margin:0 auto}
.faq-item{border:1px solid var(--bd);border-radius:var(--rs);overflow:hidden;
  background:var(--card);
  -webkit-backdrop-filter:blur(20px) saturate(180%);backdrop-filter:blur(20px) saturate(180%);
  box-shadow:var(--glass-glow),0 1px 2px rgba(0,0,0,.03),0 10px 28px -14px rgba(0,0,0,.08)}
.faq-item summary{list-style:none;cursor:pointer;padding:19px 22px;font-size:15.5px;font-weight:600;color:var(--fg);
  display:flex;align-items:center;justify-content:space-between;gap:16px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-family:var(--mono);font-size:20px;color:var(--acc-ink);flex:none;
  transition:transform .2s var(--ease)}
.faq-item[open] summary::after{transform:rotate(45deg)}
@media (hover:hover) and (pointer:fine){.faq-item summary:hover{color:var(--acc-ink)}}
.faq-item .faq-a{padding:0 22px 20px;color:var(--mut);font-size:14px;line-height:1.7}
.faq-item .faq-a strong{color:var(--fg);font-weight:600}
.faq-item .faq-a .mono{color:var(--acc-ink)}

/* ── footer ── */
footer{border-top:1px solid var(--bd);padding:48px 0 40px;margin-top:24px;
  background:rgba(255,255,255,.5);
  -webkit-backdrop-filter:blur(20px) saturate(180%);backdrop-filter:blur(20px) saturate(180%)}
@supports(padding:max(0px)){footer{padding-bottom:max(40px,env(safe-area-inset-bottom))}}
.foot-grid{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;margin-bottom:32px}
.foot-brand{max-width:330px}
.foot-brand .brand{margin-bottom:12px}
.foot-brand p{font-size:13px;color:var(--mut);line-height:1.65}
.foot-links{display:flex;gap:22px;align-items:flex-start;font-size:14px}
.foot-links a{color:var(--mut)}
@media (hover:hover) and (pointer:fine){.foot-links a:hover{color:var(--fg)}}
.godl{border:1px solid var(--bd);border-radius:var(--rs);padding:16px 18px;
  background:rgba(255,255,255,.6);
  font-size:12.5px;color:var(--mut);line-height:1.7;max-width:560px}
.godl b{color:var(--fg)}
.foot-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:12px;color:var(--mut);
  padding-top:24px;border-top:1px solid var(--bd)}
.disc{font-size:11.5px;color:var(--mut2);margin-top:8px;line-height:1.6}

/* ── mobile polish (2026-07-06 RWD sweep) ── */
@media(max-width:680px){
  .hero{padding:56px 0 24px}
  .hero h1{font-size:clamp(28px,8vw,36px)}
  .hero .lead{font-size:15.5px}
  section{padding:44px 0}
  .sec-head{margin-bottom:30px}
  .curl{margin-top:26px;border-radius:12px}
  .curl-line{font-size:11.5px;padding:12px 14px}
  .cta-row .btn-lg{width:100%;justify-content:center}
  /* tap targets ≥44px (Apple HIG) */
  .btn{min-height:44px}
  .lang-toggle a{padding:8px 14px}
  .demo-head{padding:16px}
  .demo-tabs{padding:12px 16px 0}
  .dtab{padding:10px 15px}
  .demo-req{padding:12px 16px 0}
  .resp{margin:12px 16px 18px;font-size:11.5px}
  .demo-hint{padding:0 16px 16px}
  .demo-controls{width:100%}
  .demo input{flex:1;min-width:0}
  /* 16px stops iOS Safari zoom-on-focus */
  .demo input,.demo select{font-size:16px;min-height:44px}
  .foot-grid{flex-direction:column;gap:20px}
  .tier{padding:22px 18px}
  .how-note{padding:18px 18px}
  .badge,.pcard,.lane,.vs-col{padding:22px 18px}
  .faq-item summary{padding:17px 18px}
  .faq-item .faq-a{padding:0 18px 18px}
}


/* 熱門指標入口卡（首頁 #hot section，連到 /feature 活頁） */
.hotgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.hotcard{display:flex;flex-direction:column;border:1px solid var(--bd2);border-radius:16px;background:var(--card);box-shadow:var(--glass-shadow);padding:22px 20px;text-decoration:none;min-height:44px;transition:transform 160ms var(--ease),border-color 160ms var(--ease)}
.hotcard:active{transform:scale(.985)}
@media(hover:hover)and(pointer:fine){.hotcard:hover{border-color:var(--acc);transform:translateY(-2px)}}
.hotcard h3{font-family:var(--serif);font-size:18px;font-weight:600;color:var(--fg);margin:0 0 8px;display:flex;align-items:center;gap:8px}
.hotcard h3 .arw{margin-left:auto;color:var(--acc);font-size:16px}
.hotcard p{font-size:14px;color:var(--mut);line-height:1.7;margin:0}
.hot-more{margin-top:20px;font-size:14px}
.hot-more a{color:var(--acc-ink);text-decoration:none;font-weight:600}
@media(hover:hover)and(pointer:fine){.hot-more a:hover{text-decoration:underline}}
@media(max-width:560px){.hotgrid{grid-template-columns:1fr}.hotcard{padding:20px 18px}}