/* CrossBorder Care · public site
   Direction B: scroll storytelling with the real product interface as the hero.
   One deep teal-ink ground, one warm paper, one luminous amber accent.
   Self-contained: no external fonts, scripts or images (Google and most CDNs are blocked in mainland China).
   Motion means something (the case moving, data being scoped, time zones) and uses transform/opacity only.
   One language on screen at a time: elements carry lang="en" or lang="zh-CN" and html[data-lang] hides the other. */

:root {
  color-scheme: light;
  --ink-950: oklch(0.175 0.028 222);
  --ink-900: oklch(0.205 0.034 218);
  --ink-850: oklch(0.235 0.037 214);
  --ink-800: oklch(0.275 0.04 211);
  --ink-line: oklch(0.45 0.035 210 / 0.42);
  --on-ink: oklch(0.955 0.012 85);
  --on-ink-2: oklch(0.84 0.018 200);
  --on-ink-3: oklch(0.72 0.022 205);

  --paper: oklch(0.972 0.01 85);
  --paper-2: oklch(0.946 0.014 85);
  --card: oklch(0.993 0.004 85);
  --text: oklch(0.235 0.03 220);
  --text-2: oklch(0.42 0.025 220);
  --text-3: oklch(0.5 0.02 220);
  --rule: oklch(0.885 0.012 85);

  --teal: oklch(0.47 0.075 185);
  --teal-ink: oklch(0.37 0.06 185);
  --teal-wash: oklch(0.935 0.03 180);

  --glow: oklch(0.84 0.135 78);          /* the one luminous accent */
  --glow-soft: oklch(0.84 0.135 78 / 0.18);
  --glow-ink: oklch(0.5 0.11 62);
  --glow-wash: oklch(0.955 0.04 85);
  --alert: oklch(0.5 0.13 35);

  /* chip tokens: light context (product UI) */
  --ok-bg: var(--teal); --ok-fg: var(--card);
  --pend-c: var(--text-2); --mute-c: var(--text-3); --mute-b: var(--rule);

  --serif: "Iowan Old Style", "Charter", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --serif-zh: "Songti SC", "STSong", "Noto Serif SC", "Source Han Serif SC", "PingFang SC", "Microsoft YaHei", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, "PingFang SC", "Microsoft YaHei", monospace;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);   /* expo-out */
  --wrap: 1240px;
  --gut: clamp(16px, 4vw, 56px);
  --grain: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 .6 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- one language at a time ---------- */
html[data-lang="en"] body [lang="zh-CN"],
html[data-lang="zh"] body [lang="en"] { display: none !important; }
html[data-lang] body .lang-toggle [lang] { display: inline-block !important; }

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--text); font: 17px/1.6 var(--sans); -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
html[data-lang="zh"] body { line-height: 1.75; }
h1, h2, h3, p, ol, ul, dl, dd, figure { margin: 0; }
ol, ul { padding: 0; list-style: none; }
h1, h2, h3 { text-wrap: balance; }
p { text-wrap: pretty; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--glow); outline-offset: 3px; border-radius: 6px; }
.light :focus-visible { outline-color: var(--glow-ink); }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: 12px; top: -60px; z-index: 50; background: var(--glow); color: var(--ink-950); padding: 8px 14px; border-radius: 8px; font-weight: 600; text-decoration: none; }
.skip:focus { top: 12px; }
.wrap { width: 100%; max-width: calc(var(--wrap) + 2 * var(--gut)); margin: 0 auto; padding: 0 var(--gut); }
.fine { font-size: 14px; color: var(--text-3); }
.dark .fine { color: var(--on-ink-3); }

/* ---------- grounds ---------- */
.dark { background: var(--ink-900); color: var(--on-ink); position: relative; --ok-bg: oklch(0.76 0.085 180); --ok-fg: var(--ink-950); --pend-c: var(--on-ink-2); --mute-c: var(--on-ink-3); --mute-b: var(--ink-line); }
.dark::after { content: ""; position: absolute; inset: 0; background-image: var(--grain); opacity: 0.05; pointer-events: none; }
.light { background: var(--paper); color: var(--text); position: relative; }
.light.alt { background: var(--paper-2); }
.dark > .wrap, .light > .wrap { position: relative; z-index: 1; }

/* ---------- type ---------- */
.eyebrow { display: inline-flex; flex-wrap: wrap; align-items: center; gap: 10px; font: 600 12px/1.4 var(--mono); letter-spacing: 0.14em; text-transform: uppercase; color: var(--on-ink-3); }
.eyebrow .pip { width: 6px; height: 6px; border-radius: 50%; background: var(--glow); box-shadow: 0 0 0 4px var(--glow-soft); }
.light .eyebrow { color: var(--text-3); }
.light .eyebrow .pip { background: var(--glow-ink); box-shadow: 0 0 0 4px oklch(0.84 0.135 78 / 0.3); }
html[data-lang="zh"] .eyebrow { font-family: var(--sans); letter-spacing: 0.16em; font-size: 13px; }

.display { font-family: var(--serif); font-weight: 400; letter-spacing: -0.022em; line-height: 1.04; }
.h2 { font-size: clamp(34px, 4.4vw, 62px); }
.h3 { font-size: clamp(28px, 2.8vw, 40px); }
html[data-lang="zh"] .display { font-family: var(--serif-zh); letter-spacing: 0.01em; line-height: 1.24; font-weight: 600; }
html[data-lang="zh"] .h2 { font-size: clamp(30px, 3.6vw, 50px); }
/* Chinese headings break at punctuation, not mid-word (e.g. never 电 / 话) */
html[data-lang="zh"] .display, html[data-lang="zh"] .step h3, html[data-lang="zh"] .ws-cap h3 { word-break: keep-all; overflow-wrap: anywhere; }
html[data-lang="zh"] .h3 { font-size: clamp(25px, 2.4vw, 34px); }
.lede { font-size: clamp(17px, 1.35vw, 19.5px); line-height: 1.6; color: var(--on-ink-2); max-width: 36em; }
.light .lede { color: var(--text-2); }
html[data-lang="zh"] .lede { line-height: 1.8; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 48px; padding: 12px 22px; border-radius: 999px; font-weight: 600; font-size: 16px; text-decoration: none; border: 1px solid transparent; transition: transform .5s var(--ease), background-color .2s, border-color .2s; }
.btn:hover { transform: translateY(-2px); }
.btn-glow { background: var(--glow); color: var(--ink-950); }
.btn-glow:hover { background: oklch(0.88 0.12 80); }
.btn-ghost { border-color: var(--ink-line); color: var(--on-ink); }
.btn-ghost:hover { border-color: var(--on-ink-3); }
.light .btn-ghost { border-color: oklch(0.8 0.015 220); color: var(--text); }
.btn-ink { background: var(--ink-900); color: var(--on-ink); }
.btn-ink:hover { background: var(--ink-800); }
.btn .arr { display: inline-block; transition: transform .5s var(--ease); }
.btn:hover .arr { transform: translateX(4px); }
.cta-row { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 14px; margin-top: 30px; }

/* ---------- chips (shared vocabulary with the demo) ---------- */
.chip { display: inline-flex; align-items: center; gap: 6px; font: 600 11.5px/1.35 var(--sans); padding: 3px 9px; border-radius: 999px; white-space: nowrap; border: 1px solid transparent; }
.chip-ok { background: var(--ok-bg); color: var(--ok-fg); }
.chip-pend { border: 1px dashed var(--pend-c); color: var(--pend-c); }
.chip-mute { border-color: var(--mute-b); color: var(--mute-c); }
.chip-glow { background: var(--glow); color: var(--ink-950); }
.chip-fict { border: 1px dashed oklch(0.6 0.1 45); color: oklch(0.48 0.11 45); text-transform: uppercase; letter-spacing: .06em; font-size: 10px; padding: 2px 7px; }

/* chip flip: both labels share one grid cell, so nothing reflows */
.flip { display: inline-grid; perspective: 400px; }
.flip > * { grid-area: 1 / 1; justify-self: start; backface-visibility: hidden; }
.flip .f-a { opacity: 0; }
.flip.end { margin-left: auto; }
.flip.end > * { justify-self: end; }

/* ==========================================================================
   Pre-launch strip + header
   ========================================================================== */
.prelaunch { background: var(--ink-950); color: var(--on-ink-2); font-size: 13.5px; padding: 8px 0; position: relative; z-index: 2; }
.prelaunch strong { color: var(--glow); font-weight: 600; margin-right: 4px; }
.site-header { background: var(--ink-900); color: var(--on-ink); position: relative; z-index: 3; }
.header-row { display: flex; align-items: center; gap: 24px; min-height: 72px; }
.wordmark { display: inline-flex; align-items: baseline; gap: 12px; text-decoration: none; white-space: nowrap; margin-right: auto; }
.wm-en { font: 400 22px/1 var(--serif); letter-spacing: -0.01em; }
.wm-zh { font: 500 15px/1 var(--serif-zh); color: var(--on-ink-2); letter-spacing: 0.08em; }
.nav { display: flex; align-items: center; gap: 24px; font-size: 15px; }
.nav a { text-decoration: none; color: var(--on-ink-2); white-space: nowrap; }
.nav a:hover { color: var(--on-ink); }
.nav .nav-cta { color: var(--ink-950); background: var(--glow); padding: 9px 16px; border-radius: 999px; font-weight: 600; }
.nav .nav-cta:hover { color: var(--ink-950); background: oklch(0.88 0.12 80); }
.lang-toggle { display: inline-flex; border: 1px solid var(--ink-line); border-radius: 999px; padding: 3px; flex: none; }
.lang-toggle button { font: 600 13px/1 var(--sans); border: 0; background: transparent; color: var(--on-ink-2); padding: 8px 12px; min-height: 32px; border-radius: 999px; cursor: pointer; }
.lang-toggle button:hover { color: var(--on-ink); }
.lang-toggle button[aria-pressed="true"] { background: var(--on-ink); color: var(--ink-950); }

/* ==========================================================================
   HERO · the product is the illustration
   ========================================================================== */
.hero { overflow: clip; padding: clamp(24px, 4vh, 56px) 0 0; }
.hero::before { content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(48% 56% at 72% 42%, oklch(0.36 0.055 200 / 0.75), transparent 72%),
    radial-gradient(22% 26% at 88% 86%, oklch(0.84 0.135 78 / 0.12), transparent 70%); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6.2fr); gap: clamp(24px, 3vw, 48px); align-items: center; min-height: clamp(560px, calc(100vh - 260px), 680px); }
.hero-copy { padding: 12px 0 24px; }
.hero h1 { font-size: clamp(44px, 5.5vw, 82px); margin: 22px 0 24px; }
html[data-lang="zh"] .hero h1 { font-size: clamp(36px, 4.4vw, 64px); line-height: 1.22; }
.hero h1 .w { display: inline-block; }
.hero .lede { max-width: 30em; }

.hero-stage { position: relative; height: 600px; perspective: 1800px; perspective-origin: 30% 20%; --ds: .92; }
.deck { position: absolute; left: 50%; top: 50%; width: 680px; height: 560px; margin: -310px 0 0 -340px; transform-style: preserve-3d; transform: scale(var(--ds)) rotateX(calc(13deg + var(--sp, 0) * 10deg)) rotateY(-17deg) rotateZ(3.5deg); }
.layer { position: absolute; transform-style: preserve-3d; transform: translate3d(calc(var(--dx) * var(--sp, 0) * 1px), calc(var(--dy) * var(--sp, 0) * 1px), var(--z)); }
.l-ops      { left: 330px; top: -10px; width: 340px; --z: -190px; --dx: 70;  --dy: -150; }
.l-provider { left: 0;     top: 14px;  width: 318px; --z: -90px;  --dx: -80; --dy: -110; }
.l-case     { left: 10px;  top: 236px; width: 370px; --z: 80px;   --dx: -40; --dy: -50; }
.l-vendor   { left: 398px; top: 262px; width: 290px; --z: 10px;   --dx: 90;  --dy: -20; }

/* product windows */
.win { --ok-bg: var(--teal); --ok-fg: var(--card); --pend-c: var(--text-2); --mute-c: var(--text-3); --mute-b: var(--rule);
  position: relative; background: var(--card); color: var(--text); border-radius: 14px; border: 1px solid oklch(0.9 0.01 85);
  box-shadow: 0 44px 90px -34px oklch(0.08 0.03 220 / 0.7), 0 14px 28px -14px oklch(0.08 0.03 220 / 0.45);
  overflow: hidden; font-size: 13px; line-height: 1.45; text-align: left; }
.win-bar { display: flex; align-items: center; gap: 8px; padding: 9px 14px; border-bottom: 1px solid var(--rule); background: var(--paper-2); font: 600 10.5px/1.3 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-2); }
html[data-lang="zh"] .win-bar { font-family: var(--sans); font-size: 11.5px; letter-spacing: .08em; }
.win-bar .chip-fict { margin-left: auto; }
.win-body { padding: 14px 16px 16px; }
.win-title { font: 500 17px/1.25 var(--serif); letter-spacing: -0.005em; margin: 2px 0 10px; color: var(--text); }
html[data-lang="zh"] .win-title { font-family: var(--serif-zh); font-weight: 600; font-size: 16px; letter-spacing: .02em; }
.k { font: 600 10.5px/1.3 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-3); margin-bottom: 3px; }
html[data-lang="zh"] .k { font-family: var(--sans); font-size: 11.5px; letter-spacing: .06em; }
.ref { font: 500 11.5px/1.3 var(--mono); color: var(--text-3); letter-spacing: 0.02em; }
html[data-lang="zh"] .ref { font-family: var(--sans); font-size: 12px; }
.meter { display: flex; gap: 4px; margin: 8px 0 6px; }
.meter i { flex: 1; height: 4px; border-radius: 2px; background: var(--rule); }
.meter i.on { background: var(--teal); }
.meter-label { font-size: 12px; color: var(--text-2); }
.row { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 0; border-top: 1px solid var(--rule); }
.row:first-child { border-top: 0; }
.v { color: var(--text); }
.v-sub { font-size: 12px; color: var(--text-3); }
.nextbox { margin-top: 12px; padding: 10px 12px; border-radius: 10px; background: var(--teal-wash); color: var(--teal-ink); }
.nextbox .k { color: var(--teal-ink); opacity: .85; }
.nextbox p:last-child { font-weight: 600; }
.kv { display: grid; grid-template-columns: auto 1fr; gap: 7px 14px; }
.kv dt { font: 600 10.5px/1.6 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--text-3); white-space: nowrap; }
html[data-lang="zh"] .kv dt { font-family: var(--sans); font-size: 12px; letter-spacing: .04em; line-height: 1.45; }
.kv dd { color: var(--text); }
.doc { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border: 1px solid var(--rule); border-radius: 9px; background: var(--paper); }
.doc svg { flex: none; }
.doc .name { font: 500 12px/1.3 var(--mono); color: var(--text); min-width: 0; overflow-wrap: anywhere; }
html[data-lang="zh"] .doc .name { font-family: var(--sans); }
.doc .btnlet { margin-left: auto; font-size: 11.5px; font-weight: 600; padding: 3px 10px; border-radius: 999px; border: 1px solid var(--rule); background: var(--card); color: var(--text-2); }
.access { display: flex; align-items: center; gap: 12px; margin-top: 12px; }
.vend-top { display: flex; justify-content: space-between; gap: 12px; align-items: flex-start; }

/* expiry ring: one tick per day of access, built by JS; opacity-only reveal */
.ring { position: relative; width: 64px; height: 64px; flex: none; display: grid; place-items: center; }
.ring-lg { width: 76px; height: 76px; }
.ring svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.ring .tk { stroke: var(--teal); stroke-width: 2.6; stroke-linecap: round; }
.ring .tk.used { stroke: var(--rule); }
.ring b { font: 500 19px/1 var(--serif); color: var(--text); }
html:not(.js) .ring { border: 3px solid var(--teal); border-radius: 50%; }
.dark .frag .ring .tk { stroke: var(--glow); }
.dark .frag .ring .tk.used { stroke: oklch(0.5 0.03 210 / .6); }
.dark .frag .ring b { color: var(--on-ink); }

/* fields that are never sent */
.hidden-list { margin-top: 12px; padding-top: 10px; border-top: 1px dashed var(--rule); }
.hid { display: grid; grid-template-columns: 9.5em 1fr auto; align-items: center; gap: 10px; padding: 5px 0; font-size: 12px; color: var(--text-3); }
.redact { display: block; height: 9px; border-radius: 3px; transform-origin: 0 50%; width: var(--w, 70%); max-width: 240px;
  background: repeating-linear-gradient(-45deg, oklch(0.78 0.012 220) 0 3px, oklch(0.9 0.008 220) 3px 7px); }
.hid:nth-of-type(2) .redact { --w: 92%; } .hid:nth-of-type(3) .redact { --w: 58%; } .hid:nth-of-type(4) .redact { --w: 80%; } .hid:nth-of-type(5) .redact { --w: 66%; }
.hid .ns { font: 600 10px/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--text-3); white-space: nowrap; }
html[data-lang="zh"] .hid .ns { font-family: var(--sans); font-size: 11px; }

/* ops queue */
.q-head, .q-row { display: grid; grid-template-columns: 7.2em 1fr 6.4em; gap: 10px; align-items: center; }
.q-head { font: 600 10px/1.3 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--text-3); padding: 0 8px 6px; }
html[data-lang="zh"] .q-head { font-family: var(--sans); font-size: 11px; }
.q-row { position: relative; padding: 9px 8px; border-top: 1px solid var(--rule); font-size: 12px; }
.q-row .id { font: 500 11.5px/1.2 var(--mono); color: var(--text); white-space: nowrap; }
.q-row .who { color: var(--text-2); font-size: 11.5px; }
.q-row .who.un { color: var(--text-3); font-style: italic; }
html[data-lang="zh"] .q-row .who.un { font-style: normal; }
.q-row::before { content: ""; position: absolute; inset: 2px 0; border-radius: 8px; background: var(--glow-wash); box-shadow: inset 2px 0 0 var(--glow-ink); opacity: 0; }
.q-row.me::before { opacity: 1; }
.q-row > * { position: relative; }

/* time ruler at the foot of the hero */
.ruler { position: relative; z-index: 1; display: grid; grid-template-columns: auto 1fr auto; align-items: end; gap: clamp(16px, 3vw, 40px); padding-top: 18px; padding-bottom: 30px; }
.r-end { display: grid; gap: 2px; min-width: 8.5em; }
.r-end:last-child { text-align: right; }
.r-city { font: 600 11px/1.3 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--on-ink-3); }
html[data-lang="zh"] .r-city { font-family: var(--sans); font-size: 13px; letter-spacing: .1em; }
.r-time { font: 400 30px/1.05 var(--serif); font-variant-numeric: tabular-nums; color: var(--on-ink); letter-spacing: -0.01em; }
.r-day { font-size: 12.5px; color: var(--on-ink-3); }
.r-track { position: relative; height: 74px; }
.r-track svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.r-arc { fill: none; stroke: var(--on-ink-3); stroke-width: 1.2; stroke-dasharray: 2 6; stroke-linecap: round; opacity: .55; vector-effect: non-scaling-stroke; }
.r-lit { position: absolute; inset: 0; overflow: hidden; }
.r-lit-inner { position: absolute; inset: 0; }
.r-lit .r-arc { stroke: var(--glow); opacity: 1; stroke-width: 1.6; stroke-dasharray: 3 5; }
.r-ticks { position: absolute; left: 0; right: 0; bottom: 0; display: flex; justify-content: space-between; align-items: flex-end; height: 12px; }
.r-ticks i { width: 1px; height: 6px; background: var(--ink-line); }
.r-ticks i:first-child, .r-ticks i:last-child { height: 12px; background: var(--on-ink-3); }
.r-gap { position: absolute; left: 50%; top: 4px; transform: translateX(-50%); font: 600 11px/1.3 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--on-ink-2); white-space: nowrap; background: var(--ink-900); padding: 2px 10px; border-radius: 999px; border: 1px solid var(--ink-line); }
html[data-lang="zh"] .r-gap { font-family: var(--sans); font-size: 12px; letter-spacing: .06em; }
.r-gap b { font-weight: inherit; }
.r-token { position: absolute; left: 0; top: 0; width: 14px; height: 14px; margin: -7px 0 0 -7px; border-radius: 50%; background: var(--glow); box-shadow: 0 0 0 6px var(--glow-soft), 0 0 24px 4px oklch(0.84 0.135 78 / .35); will-change: transform; }

/* ==========================================================================
   HOW IT WORKS · sticky stage + scrolling steps
   ========================================================================== */
.story-sec { padding: clamp(80px, 12vh, 150px) 0 clamp(60px, 10vh, 120px); background: linear-gradient(var(--ink-900), var(--ink-950) 60%); }
.story-head { max-width: 900px; margin-bottom: clamp(48px, 7vh, 88px); }
.story-head h2 { margin: 20px 0 22px; }
.story { display: grid; grid-template-columns: minmax(0, 5.1fr) minmax(0, 5.6fr); gap: clamp(40px, 6vw, 104px); align-items: start; }
.stage { position: sticky; top: min(max(24px, calc(50vh - 330px)), 140px); }
.loop { display: block; width: 100%; height: auto; overflow: visible; }
.loop .plate { fill: oklch(0.255 0.038 212 / .7); stroke: var(--ink-line); }
.loop .grid { fill: url(#dotgrid); }
.loop .plate-label { font: 600 10.5px var(--mono); letter-spacing: .16em; fill: var(--on-ink-3); }
.loop .plate-label.zh, .loop .dial-c.zh, .loop .gap-sub.zh { font-family: var(--sans); letter-spacing: .1em; font-size: 12px; }
.loop .gap-label { font: 400 18px var(--serif); fill: var(--on-ink); }
.loop .gap-sub { font: 600 8.5px var(--mono); letter-spacing: .12em; fill: var(--on-ink-3); }
.loop .base { fill: none; stroke: oklch(0.6 0.03 210 / .35); stroke-width: 1; stroke-dasharray: 1 5; stroke-linecap: round; }
.loop .td { fill: var(--on-ink-3); opacity: .28; transition: opacity .35s, fill .35s; }
.loop .td.lit { fill: var(--glow); opacity: 1; }
.loop .node circle { fill: var(--ink-800); stroke: var(--on-ink-3); stroke-width: 1; transition: fill .4s, stroke .4s; }
.loop .node text { font: 600 10px var(--mono); fill: var(--on-ink-2); text-anchor: middle; dominant-baseline: central; transition: fill .4s; }
.loop .node.lit circle { fill: var(--glow); stroke: var(--glow); }
.loop .node.lit text { fill: var(--ink-950); }
.loop .nlabel text { font: 500 12.5px var(--sans); fill: var(--on-ink-2); }
.loop .nlabel.cur text { fill: var(--on-ink); }
.loop .dial circle { fill: var(--ink-850); stroke: var(--on-ink-3); stroke-width: 1; }
.loop .dial .hand { stroke: var(--on-ink); stroke-width: 1.6; stroke-linecap: round; }
.loop .dial .hand.m { stroke-width: 1.1; }
.loop .dial-t { font: 400 15px var(--serif); fill: var(--on-ink); font-variant-numeric: tabular-nums; }
.loop .dial-c { font: 600 9.5px var(--mono); letter-spacing: .12em; fill: var(--on-ink-3); }
.loop #token { will-change: transform; }
.loop .tok-halo { fill: var(--glow); opacity: .22; transform-box: fill-box; transform-origin: center; }
.loop .tok { fill: var(--glow); }

.casecard { margin-top: 18px; }
.casecard .win-body { padding: 16px 18px 18px; }
.meter-label b { font-weight: inherit; }
.sc-states { display: grid; margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--rule); }
.sc-state { grid-area: 1 / 1; display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.2fr); gap: 16px; opacity: 0; transform: translateY(10px); transition: opacity .45s var(--ease), transform .7s var(--ease); }
.sc-state.on { opacity: 1; transform: none; }
html:not(.js) .sc-state[data-s="4"] { opacity: 1; transform: none; }
.sc-state p:not(.k) { font-size: 13.5px; font-weight: 600; color: var(--text); }
.stage-note { margin-top: 14px; font-size: 13px; color: var(--on-ink-3); }

.steps { position: relative; }
.step { min-height: min(64vh, 540px); display: flex; flex-direction: column; justify-content: center; padding: 44px 0; border-top: 1px solid var(--ink-line); perspective: 1200px; }
.step:first-of-type { border-top: 0; padding-top: 0; justify-content: flex-start; }
.step-n { font: 600 12px/1 var(--mono); letter-spacing: .16em; color: var(--glow); }
.step h3 { font: 400 clamp(28px, 2.6vw, 38px)/1.12 var(--serif); letter-spacing: -0.015em; margin: 14px 0 0; }
html[data-lang="zh"] .step h3 { font-family: var(--serif-zh); font-weight: 600; letter-spacing: .02em; font-size: clamp(25px, 2.2vw, 32px); line-height: 1.3; }
.step p.copy { margin-top: 14px; color: var(--on-ink-2); max-width: 30em; }

/* story fragments: dark glass, product vocabulary */
.frag { margin-top: 26px; max-width: 500px; background: oklch(0.27 0.04 211 / .78); border: 1px solid var(--ink-line); border-radius: 16px; padding: 16px 18px; color: var(--on-ink); font-size: 13.5px; line-height: 1.45; box-shadow: 0 30px 60px -32px oklch(0.06 0.03 220 / .8); transform-origin: 50% 0; }
.frag .row { border-top-color: var(--ink-line); }
.frag .v, .frag .kv dd { color: var(--on-ink); }
.frag .kv dt, .frag .k { color: var(--on-ink-3); }
.frag .v-sub { color: var(--on-ink-3); }
.frag .doc { background: oklch(0.22 0.035 214 / .8); border-color: var(--ink-line); }
.frag .doc .name { color: var(--on-ink); }
.frag-title { display: flex; align-items: center; justify-content: space-between; gap: 12px; font: 500 16px/1.25 var(--serif); margin-bottom: 8px; }
html[data-lang="zh"] .frag-title { font-family: var(--serif-zh); font-weight: 600; font-size: 15.5px; }
.grant { display: grid; grid-template-columns: 1fr auto; gap: 14px; align-items: center; }
.tz2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 10px; }
.tz2 > div { border: 1px solid var(--ink-line); border-radius: 12px; padding: 10px 12px; }
.tz2 .t { font: 400 26px/1.1 var(--serif); font-variant-numeric: tabular-nums; }
.tz2 .d { font-size: 12px; color: var(--on-ink-3); }
.lock { display: inline-flex; align-items: center; gap: 8px; }
.slips { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 12px; }
.slip { border: 1px solid var(--ink-line); border-radius: 12px; padding: 10px 12px; display: grid; gap: 6px; align-content: start; justify-items: start; }
.slip .org { font-weight: 600; font-size: 13px; }
.slip .cur { font: 600 11px/1.3 var(--mono); letter-spacing: .04em; color: var(--on-ink-3); }
html[data-lang="zh"] .slip .cur { font-family: var(--sans); font-size: 12px; }
.frag-note { margin-top: 10px; font-size: 12.5px; color: var(--on-ink-3); }
.ticks li { display: grid; grid-template-columns: 18px 1fr auto; gap: 10px; align-items: center; padding: 8px 0; border-top: 1px solid var(--ink-line); }
.ticks li:first-child { border-top: 0; }
.ck { width: 18px; height: 18px; }
.ck path { fill: none; stroke: var(--glow); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.ck circle { fill: none; stroke: var(--on-ink-3); stroke-dasharray: 2 2.4; }

.rail { display: none; }

/* ==========================================================================
   FOUR WORKSPACES · the hero deck, laid flat and annotated
   ========================================================================== */
.light::after { content: ""; position: absolute; inset: 0; background-image: var(--grain); opacity: .035; filter: invert(1); pointer-events: none; }
.ws-sec { padding: clamp(90px, 13vh, 160px) 0 clamp(80px, 12vh, 140px); }
.ws-head { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: 24px 64px; align-items: end; margin-bottom: clamp(48px, 7vh, 80px); }
.ws-head h2 { margin-top: 18px; }
.ws-head .cta-row { margin-top: 22px; }
.ws-grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: clamp(36px, 5vh, 64px) clamp(20px, 2.6vw, 40px); align-items: start; perspective: 1600px; }
.ws { display: grid; gap: 16px; }
.ws-a { grid-column: 1 / 8; }
.ws-b { grid-column: 8 / 13; margin-top: 64px; }
.ws-c { grid-column: 1 / 6; }
.ws-d { grid-column: 6 / 13; margin-top: -24px; }
.ws-cap { display: grid; grid-template-columns: auto 1fr; gap: 4px 14px; align-items: baseline; }
.ws-cap .num { font: 600 12px/1 var(--mono); letter-spacing: .14em; color: var(--glow-ink); grid-row: span 2; padding-top: 6px; }
.ws-cap h3 { font: 400 26px/1.15 var(--serif); letter-spacing: -0.01em; }
html[data-lang="zh"] .ws-cap h3 { font-family: var(--serif-zh); font-weight: 600; font-size: 23px; letter-spacing: .02em; }
.ws-cap p { color: var(--text-2); font-size: 15.5px; max-width: 34em; }
.ws .win { box-shadow: 0 34px 70px -36px oklch(0.25 0.03 220 / .45), 0 10px 22px -14px oklch(0.25 0.03 220 / .25); font-size: 13.5px; }
.ws .win-body { padding: 16px 18px 18px; }
.ws-a .win-body { display: grid; grid-template-columns: 1.15fr 1fr; gap: 18px 24px; }
.scope { display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: 13px; color: var(--text-3); }
.scope b { font-weight: 600; color: var(--text-2); }

/* ==========================================================================
   Generic light sections: services, fees, privacy, where/partners, FAQ
   ========================================================================== */
.sec { padding: clamp(80px, 12vh, 140px) 0; }
.sec-head h2 { margin-top: 18px; }
.sec-head .lede { margin-top: 18px; }
.sec-head.wide { max-width: 820px; margin-bottom: clamp(40px, 6vh, 64px); }
.split { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.3fr); gap: 40px clamp(40px, 6vw, 96px); align-items: start; }
.sticky-head { position: sticky; top: 40px; }
.two { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 48px clamp(40px, 6vw, 96px); align-items: start; }
.two h2 { margin: 18px 0 22px; }
.body { color: var(--text-2); margin-bottom: 18px; }

.services { border-top: 1px solid var(--rule); }
.svc { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px 24px; align-items: start; padding: 22px 0; border-bottom: 1px solid var(--rule); }
.svc h3 { font: 400 22px/1.25 var(--serif); letter-spacing: -0.005em; margin-bottom: 6px; }
html[data-lang="zh"] .svc h3 { font-family: var(--serif-zh); font-weight: 600; font-size: 20px; letter-spacing: .02em; }
.svc p { color: var(--text-2); font-size: 15.5px; max-width: 38em; }
.svc .chip { margin-top: 4px; }
.svc-off h3, .svc-off p { color: var(--text-3); }
.svc-note { margin-top: 16px; }

.ledger { display: grid; grid-template-columns: minmax(0, 1fr) 76px minmax(0, 1fr); align-items: stretch; }
.ledger-col { background: var(--card); border: 1px solid var(--rule); border-radius: 18px; padding: 26px 28px 28px; box-shadow: 0 30px 60px -40px oklch(0.25 0.03 220 / .35); }
.ledger-col h3 { font: 400 26px/1.2 var(--serif); margin: 4px 0 16px; }
html[data-lang="zh"] .ledger-col h3 { font-family: var(--serif-zh); font-weight: 600; font-size: 23px; }
.cur-big { font: 400 56px/1 var(--serif); letter-spacing: -0.02em; color: var(--teal-ink); margin-top: 14px; }
html[data-lang="zh"] .cur-big { font-family: var(--serif-zh); font-size: 44px; letter-spacing: .04em; }
.ledger-col + .ledger-gap + .ledger-col .cur-big { color: var(--glow-ink); }
.ledger-gap { position: relative; display: grid; place-items: center; }
.ledger-gap::before { content: ""; position: absolute; top: 18px; bottom: 18px; left: 50%; border-left: 1px dashed oklch(0.75 0.02 220); }
.ledger-gap span { position: relative; writing-mode: vertical-rl; font: 600 11px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--text-3); background: var(--paper); padding: 10px 0; }
html[data-lang="zh"] .ledger-gap span { font-family: var(--sans); font-size: 13px; letter-spacing: .3em; }
.pledges { display: flex; flex-wrap: wrap; gap: 10px 12px; margin-top: 32px; }
.pledges li { font-size: 15px; color: var(--text); padding: 9px 16px; border-radius: 999px; border: 1px solid var(--rule); background: var(--card); }

.checks li, .crosses li { position: relative; padding: 9px 0 9px 30px; border-top: 1px solid var(--rule); color: var(--text-2); }
.checks li:first-child, .crosses li:first-child { border-top: 0; }
.checks li::before { content: ""; position: absolute; left: 2px; top: 17px; width: 12px; height: 6px; border-left: 2px solid var(--teal); border-bottom: 2px solid var(--teal); transform: rotate(-45deg); }
.crosses li::before, .crosses li::after { content: ""; position: absolute; left: 3px; top: 21px; width: 14px; height: 2px; background: var(--alert); transform: rotate(45deg); }
.crosses li::after { transform: rotate(-45deg); }
.dark .checks li, .dark .crosses li { border-top-color: var(--ink-line); color: var(--on-ink-2); }
.dark .checks li::before { border-color: var(--glow); }
.dark .crosses li::before, .dark .crosses li::after { background: oklch(0.72 0.1 40); }

.commitments { display: grid; gap: 0; border-top: 1px solid var(--rule); }
.cm { padding: 24px 0; border-bottom: 1px solid var(--rule); display: grid; gap: 8px; }
.cm dt { font: 400 23px/1.25 var(--serif); display: flex; align-items: baseline; gap: 14px; }
html[data-lang="zh"] .cm dt { font-family: var(--serif-zh); font-weight: 600; font-size: 20px; }
.cm-n { font: 600 12px/1 var(--mono); letter-spacing: .14em; color: var(--glow-ink); }
.cm dd { color: var(--text-2); padding-left: 34px; max-width: 40em; }
.cm .mini { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }
.mini .f { font: 600 10.5px/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; padding: 7px 9px; border-radius: 6px; border: 1px solid var(--rule); color: var(--text-2); background: var(--card); }
html[data-lang="zh"] .mini .f { font-family: var(--sans); font-size: 12px; }
.mini .f.end { border-color: var(--glow-ink); color: var(--glow-ink); }
.mail { margin-top: 6px; max-width: 30em; border: 1px solid var(--rule); border-radius: 12px; background: var(--card); padding: 12px 14px; display: grid; gap: 4px; }
.mail-subj { font-weight: 600; color: var(--text); font-size: 14.5px; }
.mail-body { font-size: 14px; color: var(--text-2); }

.places { border-top: 1px solid var(--rule); margin-bottom: 14px; }
.places li { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--rule); }
.places .pl { font: 400 24px/1.2 var(--serif); }
html[data-lang="zh"] .places .pl { font-family: var(--serif-zh); font-weight: 600; font-size: 21px; }
.places .when { font: 600 11px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--text-3); white-space: nowrap; }
html[data-lang="zh"] .places .when { font-family: var(--sans); font-size: 13px; }
.places .when.first { color: var(--glow-ink); }

.faq { border-top: 1px solid var(--rule); }
.faq details { border-bottom: 1px solid var(--rule); }
.faq summary { list-style: none; cursor: pointer; display: grid; grid-template-columns: 1fr 22px; gap: 16px; align-items: center; padding: 20px 0; font: 400 20px/1.35 var(--serif); }
html[data-lang="zh"] .faq summary { font-family: var(--serif-zh); font-weight: 600; font-size: 18px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: ""; width: 22px; height: 22px; border-radius: 50%; border: 1px solid oklch(0.8 0.015 220);
  background: linear-gradient(var(--text-2), var(--text-2)) center / 10px 1.5px no-repeat, linear-gradient(var(--text-2), var(--text-2)) center / 1.5px 10px no-repeat; transition: transform .5s var(--ease); }
.faq details[open] summary::after { background: linear-gradient(var(--text-2), var(--text-2)) center / 10px 1.5px no-repeat; transform: rotate(180deg); }
.faq details p { color: var(--text-2); padding: 0 40px 22px 0; max-width: 44em; }

/* ==========================================================================
   SAFETY band (dark)
   ========================================================================== */
.trust { padding: clamp(80px, 12vh, 140px) 0; background: var(--ink-950); }
.trust-head { max-width: 860px; margin-bottom: clamp(40px, 6vh, 64px); }
.trust-head h2 { margin: 18px 0 18px; }
.dodont { display: grid; grid-template-columns: 1fr 1fr; gap: 32px clamp(32px, 5vw, 80px); padding-bottom: 40px; }
.dodont h3 { font: 400 26px/1.2 var(--serif); margin-bottom: 10px; }
html[data-lang="zh"] .dodont h3 { font-family: var(--serif-zh); font-weight: 600; font-size: 22px; }
.principles { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--ink-line); }
.pr { padding: 28px 28px 30px 0; display: grid; gap: 14px; align-content: start; }
.pr + .pr { padding-left: 28px; border-left: 1px solid var(--ink-line); }
.pr h3 { font: 400 23px/1.2 var(--serif); letter-spacing: -0.01em; }
html[data-lang="zh"] .pr h3 { font-family: var(--serif-zh); font-weight: 600; font-size: 21px; }
.pr p { color: var(--on-ink-2); font-size: 15px; max-width: 30em; }
.pr .mini { min-height: 74px; }
.nolist { width: 100%; max-width: 320px; display: grid; gap: 4px; font: 500 12px/1.3 var(--mono); }
html[data-lang="zh"] .nolist { font-family: var(--sans); font-size: 13px; }
.nolist div { display: flex; justify-content: space-between; border-bottom: 1px dashed var(--ink-line); padding: 3px 0; color: var(--on-ink-2); }
.nolist em { font-style: normal; color: var(--glow); }
.labels { display: grid; grid-template-columns: auto auto; gap: 8px; justify-content: start; justify-items: start; align-items: center; }
.emergency { margin-top: 32px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 8px 20px; padding: 22px 26px; border-radius: 16px; border: 1px solid oklch(0.84 0.135 78 / .45); background: oklch(0.84 0.135 78 / .07); }
.emergency strong { font: 400 26px/1.2 var(--serif); color: var(--glow); }
html[data-lang="zh"] .emergency strong { font-family: var(--serif-zh); font-weight: 600; font-size: 22px; }
.emergency > span { color: var(--on-ink-2); }

/* ==========================================================================
   Close + footer
   ========================================================================== */
.close { padding: clamp(80px, 12vh, 130px) 0; background: var(--ink-900); }
.close-grid { display: grid; grid-template-columns: minmax(0, 1.4fr) auto; gap: 24px 64px; align-items: end; }
.close .lede { margin-top: 18px; }
.close .cta-row { margin-top: 0; }
.site-footer { background: var(--paper-2); color: var(--text-2); font-size: 14px; padding: 36px 0 44px; border-top: 1px solid var(--rule); }
.footer-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: 20px 64px; }
.footer-grid p + p { margin-top: 8px; }
.wordmark-small { margin-bottom: 10px; }
.site-footer .wm-en { color: var(--text); font-size: 20px; }
.site-footer .wm-zh { color: var(--text-3); }
.copyright { color: var(--text-3); }

/* ==========================================================================
   Motion (only when the reader hasn't asked for less).
   The CSS above is the final, fully revealed state: no-JS and reduced motion both get a complete static page.
   ========================================================================== */
@media (prefers-reduced-motion: no-preference) {
  /* hero load sequence: copy rises, then windows arrive in journey order */
  .hero .rise { transition: opacity .9s var(--ease) var(--d, 0s), transform 1.3s var(--ease) var(--d, 0s); }
  .js .hero:not(.in) .rise { opacity: 0; transform: translateY(26px); }
  .hero .win { transition: opacity .8s var(--ease) var(--d, 0s), transform 1.5s var(--ease) var(--d, 0s); }
  .js .hero:not(.in) .win { opacity: 0; transform: translate3d(0, 80px, -260px) rotateX(-12deg); }
  .r-track, .r-end { transition: opacity 1s var(--ease) var(--d, .3s); }
  .js .hero:not(.in) .r-track, .js .hero:not(.in) .r-end { opacity: 0; }

  /* chip flip: "Awaiting provider confirmation" → "Confirmed by provider" */
  .flip .f-a, .flip .f-b { transition: opacity .35s var(--ease) var(--fd, 0s), transform .8s var(--ease) var(--fd, 0s); }
  .js .fhost:not(.in) .flip .f-a { opacity: 1; transform: none; }
  .js .fhost:not(.in) .flip .f-b { opacity: 0; transform: translateY(70%) rotateX(-90deg); }
  .flip .f-a { transform: translateY(-70%) rotateX(90deg); }
  .flip .f-b { transform-origin: 50% 0; }

  /* ring ticks appear clockwise, one per day */
  .ring .tk { transition: opacity .3s linear calc(var(--rk, 0s) + var(--i) * 22ms); }
  .js .fhost:not(.in) .ring .tk { opacity: 0; }

  /* masks slide over fields that are never sent */
  .redact { transition: transform .9s var(--ease) calc(var(--rd, 0s) + var(--i, 0) * 110ms); }
  .js .fhost:not(.in) .redact { transform: scaleX(0); }
  .hid .ns { transition: opacity .5s var(--ease) calc(var(--rd, 0s) + .5s + var(--i, 0) * 110ms); }
  .js .fhost:not(.in) .hid .ns { opacity: 0; }

  /* ops queue: the assigned row lights up */
  .q-row::before { transition: opacity .8s var(--ease) var(--qd, 0s); }
  .js .fhost:not(.in) .q-row.me::before { opacity: 0; }

  /* scroll reveals */
  [data-reveal] { transition: opacity .9s var(--ease) var(--d, 0s), transform 1.3s var(--ease) var(--d, 0s); }
  .js [data-reveal]:not(.in) { opacity: 0; transform: translateY(36px); }
  .frag { transition: opacity .9s var(--ease) .15s, transform 1.4s var(--ease) .15s; }
  .js .step:not(.in) .frag { opacity: 0; transform: translateY(48px) rotateX(14deg); }
  .ws .win { transition: opacity .9s var(--ease) .1s, transform 1.5s var(--ease) .1s; }
  .js .ws:not(.in) .win { opacity: 0; transform: translateY(60px) rotateX(16deg) scale(.97); }
  .ticks li { transition: opacity .6s var(--ease) calc(.5s + var(--i) * 140ms), transform .9s var(--ease) calc(.5s + var(--i) * 140ms); }
  .js .step:not(.in) .ticks li { opacity: 0; transform: translateX(-12px); }
  .ck path { transition: opacity .4s var(--ease) calc(.7s + var(--i, 0) * 140ms); }
  .js .step:not(.in) .ck path { opacity: 0; }
  .slip { transition: opacity .7s var(--ease) calc(1.6s + var(--i) * 160ms), transform 1s var(--ease) calc(1.6s + var(--i) * 160ms); }
  .js .step:not(.in) .slip { opacity: 0; transform: translateY(14px); }

  .loop .tok-halo { animation: halo 2.4s var(--ease) infinite; }

  /* once a sequence has played, drop its transitions so the end state is guaranteed */
  .settled .rise, .settled .win, .settled .flip > *, .settled .tk, .settled .redact, .settled .ns,
  .settled .q-row::before, .settled .r-track, .settled .r-end, .settled .frag, .settled .ticks li,
  .settled .ck path, .settled .slip, [data-reveal].settled { transition: none; }
}
/* narrow screens: reveal without 3D tilt, so a not-yet-revealed panel never widens the page */
@media (max-width: 760px) and (prefers-reduced-motion: no-preference) {
  .js .step:not(.in) .frag { transform: translateY(40px); }
  .js .ws:not(.in) .win { transform: translateY(48px); }
}
@keyframes halo { 0% { transform: scale(.6); opacity: .45; } 100% { transform: scale(1.9); opacity: 0; } }
/* very tall, print-like captures: everything shown in its end state */
html.still *, html.still *::before, html.still *::after { transition: none !important; animation: none !important; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1180px) {
  .hero-stage { height: 540px; --ds: .72; }
  .nav a[href="#services"], .nav a[href="#safety"] { display: none; }
}
@media (max-width: 980px) {
  .nav a:not(.nav-cta) { display: none; }
  .hero-grid { grid-template-columns: minmax(0, 1fr); min-height: 0; }
  .hero-copy { padding-bottom: 0; }
  .hero-stage { height: 560px; margin-top: -10px; --ds: .9; }
  .story { grid-template-columns: minmax(0, 1fr); }
  .stage { position: relative; top: 0; max-width: 620px; }
  .rail { display: flex; align-items: center; gap: 12px; position: sticky; top: 0; z-index: 4; margin: 0 calc(-1 * var(--gut)); padding: 12px var(--gut); background: oklch(0.19 0.032 220 / .94); border-bottom: 1px solid var(--ink-line); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); }
  .rail-dots { display: flex; gap: 6px; flex: none; }
  .rail-dots i { width: 22px; height: 4px; border-radius: 2px; background: var(--ink-line); transition: background-color .3s; }
  .rail-dots i.on { background: var(--glow); }
  .rail-label { font-size: 13px; color: var(--on-ink-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0; }
  .rail-label b { color: var(--on-ink); font-weight: 600; }
  .step:first-of-type { padding-top: 44px; }
  .ws-head, .close-grid, .split, .two { grid-template-columns: minmax(0, 1fr); }
  .sticky-head { position: static; }
  .ws-a, .ws-b, .ws-c, .ws-d { grid-column: 1 / -1; margin-top: 0; }
}
@media (max-width: 760px) {
  body { font-size: 16px; }
  .wm-zh { display: none; }
  .header-row { min-height: 60px; gap: 12px; }
  .hero-stage { height: 470px; --ds: .7; }
  .ruler { grid-template-columns: 1fr 1fr; }
  .r-track { grid-column: 1 / -1; grid-row: 1; height: 64px; }
  .r-time { font-size: 24px; }
  .ws-a .win-body { grid-template-columns: minmax(0, 1fr); }
  .principles, .dodont { grid-template-columns: minmax(0, 1fr); }
  .pr, .pr + .pr { padding: 22px 0; border-left: 0; }
  .pr + .pr { border-top: 1px solid var(--ink-line); }
  .pr .mini { min-height: 0; }
  .hid { grid-template-columns: 8.4em 1fr auto; }
  .ledger { grid-template-columns: minmax(0, 1fr); }
  .ledger-gap { height: 56px; }
  .ledger-gap::before { top: 0; bottom: 0; }
  .ledger-gap span { writing-mode: horizontal-tb; padding: 0 12px; }
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .cm dd { padding-left: 0; }
  .faq details p { padding-right: 0; }
}
@media (max-width: 560px) {
  .hero-stage { height: 400px; --ds: .54; }
  .l-ops { display: none; }
  .q-head, .q-row { grid-template-columns: 9.6em 1fr; }
  .q-head > :last-child, .q-row > :last-child { display: none; }
  .r-gap { font-size: 10px; }
  .emergency strong { font-size: 22px; }
  .nav .nav-cta { display: none; }
}
@media (max-width: 420px) {
  .hero-stage { height: 360px; --ds: .5; }
  .slips { grid-template-columns: minmax(0, 1fr); }
  .grant { grid-template-columns: minmax(0, 1fr); }
  .grant .ring { justify-self: start; }
}