/* =========================================================================
   PHONECLOUDIFY — "SIGNAL CARBON"
   -------------------------------------------------------------------------
   The visual language is instrumentation, not SaaS: a spectrum analyser for
   device identity. Four signature devices carry it —

     1. TICKED RULES     every section opens on a measurement ruler
     2. CROP BRACKETS    cards are framed by corner marks, not boxes
     3. INDEXED LABELS   sections auto-number themselves [01] [02] [03]
     4. SEGMENTED METERS bars read as signal strength, not progress

   Colour is doing work, not decoration: acid lime means "passes", coral means
   "detected". Numbers are always tabular mono. Nothing is rounded very much.
   ========================================================================= */

:root {
  /* Signal palette.
     --lime      solid fill only (buttons, badges) — always the acid brand
                 colour, always with --btn-ink on top.
     --lime-ink  text, borders and thin graphics. Identical to --lime in the
                 dark theme; a deep olive on paper, where acid lime on #f2efe7
                 measures 2.1:1 and is simply unreadable. */
  --lime:     #c8f751;
  --lime-ink: #c8f751;
  --coral:    #ff5c38;   /* detected / banned / them  */
  --sky:      #9fd9ff;   /* information, links        */
  --amber:    #ffb53d;   /* partial, warning          */
  --violet:   #b39bff;   /* secondary accent          */

  --grad: linear-gradient(96deg, var(--lime), #8fe6a4 55%, var(--sky));
  --grad-hot: linear-gradient(96deg, var(--coral), var(--amber));

  /* geometry — deliberately tight. instruments are not pill-shaped. */
  --r-xs: 2px; --r-sm: 3px; --r: 4px; --r-lg: 6px; --r-xl: 10px; --r-full: 999px;
  --notch: 9px;                       /* clipped corner on primary actions */

  --wrap: 1240px;
  --gut: clamp(18px, 4vw, 40px);

  --f-sans: -apple-system, BlinkMacSystemFont, "Segoe UI Variable Display", "Segoe UI",
            Inter, Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB",
            "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --f-mono: ui-monospace, "SF Mono", SFMono-Regular, "JetBrains Mono", "Cascadia Mono",
            "Segoe UI Mono", Consolas, "Liberation Mono", monospace;

  --ease: cubic-bezier(.2,.7,.3,1);
  --t: 180ms var(--ease);
}

:root, [data-theme="dark"] {
  --bg:        #08090c;
  --bg-2:      #0b0d11;
  --surface:   #101318;
  --surface-2: #151920;
  --surface-3: #1c222b;
  --line:      #23282f;
  --line-2:    #333a44;
  --ink:       #eef1f2;
  --ink-2:     #a9b2bb;
  --ink-3:     #7d8691;   /* ≥4.5:1 on every carbon surface */
  --glass:     rgba(255,255,255,.022);
  --glass-2:   rgba(255,255,255,.045);
  --shadow:    0 20px 60px -30px rgba(0,0,0,.9);
  --btn-ink:   #0a0c0f;
  --grid-ink:  rgba(255,255,255,.035);
  --scan:      rgba(255,255,255,.014);
}

[data-theme="light"] {
  --bg:        #f2efe7;   /* warm technical paper, never pure white */
  --bg-2:      #ebe7dc;
  --surface:   #fbf9f4;
  --surface-2: #f5f2ea;
  --surface-3: #eae5d9;
  --line:      #d6d0c2;
  --line-2:    #b9b2a1;
  --ink:       #14171b;
  --ink-2:     #4a5058;
  --ink-3:     #5f656d;   /* 5.2:1 on paper, 4.9:1 on the tinted surfaces */
  --glass:     rgba(20,23,27,.02);
  --glass-2:   rgba(20,23,27,.045);
  --shadow:    0 18px 50px -30px rgba(20,23,27,.4);
  --btn-ink:   #0a0c0f;
  --grid-ink:  rgba(20,23,27,.05);
  --scan:      rgba(20,23,27,.012);
  /* the acid stays as a fill — it reads like a highlighter on paper — but
     everything drawn as ink drops to values that actually pass AA */
  --lime-ink:  #4a6b00;
  --sky:       #1f6690;
  --amber:     #8f5d00;
  --coral:     #c22f0e;
  --violet:    #5b3fc4;
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 110px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *,*::before,*::after { animation-duration:.01ms !important; transition-duration:.01ms !important; } }

body {
  font-family: var(--f-sans);
  background: var(--bg);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  font-variant-numeric: tabular-nums;
  /* the faintest scanline — you read it as texture, not stripes */
  background-image: repeating-linear-gradient(0deg, var(--scan) 0 1px, transparent 1px 3px);
}
[data-locale="zh"] body { line-height: 1.82; }

img, svg, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--lime-ink); outline-offset: 2px; border-radius: 0; }

.sr-only { position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0 0 0 0); white-space:nowrap; border:0; }
.skip { position:absolute; left:-9999px; top:8px; z-index:200; padding:10px 18px; background:var(--surface-2); border:1px solid var(--line-2); }
.skip:focus { left:16px; }

/* ---------- layout ---------- */
.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gut); }
main { display: block; counter-reset: sec; }
.section { padding-block: clamp(54px, 7.5vw, 104px); position: relative; }
.section.tight { padding-block: clamp(36px, 4.5vw, 60px); }

/* ---------- SIGNATURE 1 · ticked rule ---------- */
.rule {
  height: 9px; width: 100%;
  border-top: 1px solid var(--line-2);
  background-image: repeating-linear-gradient(90deg, var(--line-2) 0 1px, transparent 1px 26px);
  background-size: 26px 5px; background-repeat: repeat-x; background-position: 0 0;
  opacity: .85;
}
.sec-head { position: relative; max-width: 780px; margin-bottom: clamp(28px, 3.6vw, 48px); }
.sec-head::before {
  content: ''; display: block; height: 8px; margin-bottom: 20px;
  border-top: 1px solid var(--line-2);
  background: repeating-linear-gradient(90deg, var(--line-2) 0 1px, transparent 1px 24px) 0 0/24px 4px repeat-x;
}
.sec-head.center { margin-inline: auto; text-align: center; }

/* ---------- type ---------- */
h1, h2, h3, h4 { line-height: 1.06; letter-spacing: -.035em; font-weight: 700; text-wrap: balance; }
[data-locale="zh"] h1, [data-locale="zh"] h2, [data-locale="zh"] h3 { letter-spacing: -.01em; line-height: 1.24; font-weight: 700; }
h1 { font-size: clamp(2.5rem, 6.4vw, 4.7rem); }
h2 { font-size: clamp(1.85rem, 3.7vw, 2.95rem); }
h3 { font-size: clamp(1.05rem, 1.6vw, 1.24rem); letter-spacing: -.022em; }
p  { text-wrap: pretty; }
code, pre, .mono { font-family: var(--f-mono); font-size: .86em; }
:not(pre) > code { background: var(--glass-2); border: 1px solid var(--line); padding: .1em .36em; color: var(--lime-ink); }

/* ---------- SIGNATURE 3 · indexed labels ---------- */
.section { counter-increment: sec; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--f-mono); font-size: .7rem; font-weight: 600;
  letter-spacing: .16em; text-transform: uppercase; color: var(--ink-3);
  margin-bottom: 15px;
}
.eyebrow::before {
  content: '[' counter(sec, decimal-leading-zero) ']';
  color: var(--lime-ink); font-weight: 700; letter-spacing: .06em;
}
.center .eyebrow { justify-content: center; }

.sec-title { margin-bottom: 16px; }
.sec-lede { color: var(--ink-2); font-size: clamp(1rem, 1.3vw, 1.11rem); }

.grad-text { color: var(--lime-ink); }
.hl { color: var(--sky); }
em { font-style: normal; color: var(--lime-ink); }

/* ---------- buttons — clipped corner, no pills ---------- */
.btn {
  --pad: 13px 24px;
  position: relative;
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: var(--pad);
  font-family: var(--f-mono); font-size: .82rem; font-weight: 600;
  letter-spacing: .06em; text-transform: uppercase; white-space: nowrap;
  border: 1px solid transparent;
  clip-path: polygon(0 0, calc(100% - var(--notch)) 0, 100% var(--notch), 100% 100%, var(--notch) 100%, 0 calc(100% - var(--notch)));
  transition: background var(--t), color var(--t), border-color var(--t), transform var(--t);
}
[data-locale="zh"] .btn { font-family: var(--f-sans); letter-spacing: .04em; text-transform: none; font-size: .88rem; }
.btn:hover { transform: translate(0, -1px); }
.btn:active { transform: none; }
.btn .icon { transition: transform var(--t); }
.btn:hover .icon { transform: translateX(3px); }
.btn-sm { --pad: 9px 15px; --notch: 7px; font-size: .74rem; }
.btn-lg { --pad: 17px 30px; --notch: 11px; font-size: .88rem; }

.btn-primary { background: var(--lime); color: var(--btn-ink); }
.btn-primary:hover { background: #d8ff6e; }

.btn-outline { border-color: var(--line-2); color: var(--ink); background: transparent; }
.btn-outline:hover { border-color: var(--lime-ink); color: var(--lime-ink); }
.btn-ghost { color: var(--ink-2); clip-path: none; }
.btn-ghost:hover { color: var(--ink); background: var(--glass-2); }
.btn-lime { background: var(--lime); color: var(--btn-ink); }

/* ---------- badges ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 7px; padding: 5px 10px;
  font-family: var(--f-mono); font-size: .69rem; font-weight: 600; letter-spacing: .09em;
  text-transform: uppercase; border: 1px solid var(--line-2); color: var(--ink-2);
  background: var(--glass);
}
[data-locale="zh"] .badge { font-family: var(--f-sans); letter-spacing: .02em; text-transform: none; font-size: .75rem; }
.badge .dot { width: 5px; height: 5px; background: currentColor; }
.badge-violet { color: var(--violet); border-color: color-mix(in srgb, var(--violet) 42%, transparent); }
.badge-cyan   { color: var(--sky);    border-color: color-mix(in srgb, var(--sky) 42%, transparent); }
.badge-lime   { color: var(--lime-ink);   border-color: color-mix(in srgb, var(--lime) 46%, transparent); background: color-mix(in srgb, var(--lime) 8%, transparent); }
.badge-rose   { color: var(--coral);  border-color: color-mix(in srgb, var(--coral) 42%, transparent); }
.badge-amber  { color: var(--amber);  border-color: color-mix(in srgb, var(--amber) 42%, transparent); }

.pill { display:inline-flex; align-items:center; gap:6px; padding:4px 9px; font-family:var(--f-mono); font-size:.7rem; border:1px solid var(--line); color:var(--ink-2); }

/* ---------- header ---------- */
.site-header { position: sticky; top: 0; z-index: 100; }
.announce {
  border-bottom: 1px solid var(--line);
  background: var(--bg-2);
  font-family: var(--f-mono); font-size: .74rem; letter-spacing: .01em;
}
.announce-in { display: flex; align-items: center; gap: 11px; padding-block: 8px; justify-content: center; text-align: center; }
.announce-dot { width: 6px; height: 6px; background: var(--lime); animation: ping 2.4s infinite; flex: none; }
@keyframes ping { 0%,100%{opacity:1} 50%{opacity:.25} }
.announce p { color: var(--ink-2); }
.announce a { color: var(--lime-ink); font-weight: 600; display: inline-flex; align-items: center; gap: 4px; margin-left: 8px; border-bottom: 1px solid color-mix(in srgb, var(--lime) 45%, transparent); }
[data-locale="zh"] .announce { font-family: var(--f-sans); font-size: .8rem; }

.nav-bar { background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(14px); border-bottom: 1px solid var(--line); }
.site-header.stuck .nav-bar { border-bottom-color: var(--line-2); }
.nav-in { display: flex; align-items: center; gap: 20px; height: 66px; }

.brand { display: inline-flex; align-items: center; flex: none; }
.logo { display: inline-flex; align-items: center; gap: 10px; }
.logo-text { font-size: 1.2rem; font-weight: 800; letter-spacing: -.05em; }

.nav-main { flex: 1; }
.nav-list { display: flex; align-items: center; gap: 2px; list-style: none; padding: 0; }
.nav-item { position: relative; }
.nav-link {
  display: inline-flex; align-items: center; gap: 5px; padding: 8px 12px;
  font-family: var(--f-mono); font-size: .76rem; font-weight: 600; letter-spacing: .1em;
  text-transform: uppercase; color: var(--ink-2); transition: color var(--t), background var(--t);
}
[data-locale="zh"] .nav-link { font-family: var(--f-sans); font-size: .9rem; letter-spacing: .02em; text-transform: none; }
.nav-link:hover, .nav-item.open .nav-link { color: var(--lime-ink); background: var(--glass-2); }
.nav-chev { transition: transform var(--t); opacity: .6; }
.nav-item.open .nav-chev { transform: rotate(180deg); }

.mega {
  position: absolute; top: calc(100% + 13px); left: 50%; transform: translateX(-50%) translateY(-5px);
  background: var(--surface); border: 1px solid var(--line-2);
  box-shadow: var(--shadow); padding: 18px; min-width: max-content; opacity: 0; pointer-events: none;
  transition: opacity var(--t), transform var(--t);
}
.mega[hidden] { display: block; }
.nav-item.open .mega { opacity: 1; transform: translateX(-50%) translateY(0); pointer-events: auto; }
.mega-inner { display: flex; gap: 24px; }
.mega-col { min-width: 238px; }
.mega-col + .mega-col { border-left: 1px solid var(--line); padding-left: 24px; }
.mega-col-title { font-family: var(--f-mono); font-size: .66rem; text-transform: uppercase; letter-spacing: .16em; color: var(--ink-3); margin-bottom: 10px; }
.mega-col ul { list-style: none; padding: 0; display: grid; gap: 1px; }
.mega-item { display: flex; gap: 11px; padding: 9px 10px; transition: background var(--t); border-left: 2px solid transparent; }
.mega-item:hover { background: var(--glass-2); border-left-color: var(--lime-ink); }
.mega-ic { display: grid; place-items: center; width: 30px; height: 30px; border: 1px solid var(--line); color: var(--lime-ink); flex: none; }
.mega-txt { display: grid; gap: 1px; }
.mega-txt strong { font-size: .89rem; font-weight: 600; }
.mega-txt small { font-size: .76rem; color: var(--ink-3); line-height: 1.42; }

.nav-actions { display: flex; align-items: center; gap: 7px; flex: none; }
.lang-switch { display: inline-flex; align-items: center; gap: 6px; padding: 7px 10px; font-family: var(--f-mono); font-size: .74rem; font-weight: 600; color: var(--ink-2); border: 1px solid var(--line); transition: var(--t); }
.lang-switch:hover { color: var(--lime-ink); border-color: var(--lime-ink); }
.theme-toggle { display: grid; place-items: center; width: 34px; height: 34px; border: 1px solid var(--line); color: var(--ink-2); transition: var(--t); }
.theme-toggle:hover { color: var(--lime-ink); border-color: var(--lime-ink); }
.theme-toggle .ic-moon { display: none; }
[data-theme="light"] .theme-toggle .ic-moon { display: block; }
[data-theme="light"] .theme-toggle .ic-sun { display: none; }
.nav-burger { display: none; padding: 6px; color: var(--ink); }

.mobile-nav { display: none; }
.mnav-group summary { display: flex; justify-content: space-between; align-items: center; padding: 15px 0; font-weight: 600; cursor: pointer; border-bottom: 1px solid var(--line); list-style: none; }
.mnav-group summary::-webkit-details-marker { display: none; }
.mnav-group[open] summary .icon { transform: rotate(180deg); }
.mnav-group summary .icon { transition: transform var(--t); }
.mnav-body { padding: 10px 0 16px; }
.mnav-title { font-family: var(--f-mono); font-size: .66rem; text-transform: uppercase; letter-spacing: .15em; color: var(--ink-3); margin: 12px 0 6px; }
.mnav-body ul { list-style: none; padding: 0; display: grid; gap: 1px; }
.mnav-body a { display: block; padding: 8px 0; color: var(--ink-2); }
.mnav-link { display: block; padding: 15px 0; font-weight: 600; border-bottom: 1px solid var(--line); }
.mnav-cta { display: grid; gap: 10px; padding: 22px 0 32px; }

@media (max-width: 1120px) {
  .nav-main, .nav-login { display: none; }
  .nav-burger { display: grid; }
  .nav-in { justify-content: space-between; }
  .mobile-nav { display: block; position: fixed; inset: 105px 0 0; background: var(--bg); z-index: 99; overflow-y: auto; padding-bottom: 40px; }
  .mobile-nav[hidden] { display: none; }
}

/* ---------- hero ---------- */
.hero { position: relative; padding-block: clamp(50px, 8vw, 112px) clamp(44px, 6vw, 88px); overflow: hidden; }
.hero-bg { position: absolute; inset: 0; z-index: -1; pointer-events: none; }
/* dot grid, not line grid — reads as a measurement field */
.hero-bg::after {
  content: ''; position: absolute; inset: 0;
  background-image: radial-gradient(var(--grid-ink) 1px, transparent 1px);
  background-size: 22px 22px;
  mask-image: radial-gradient(ellipse 95% 68% at 50% 6%, #000 22%, transparent 80%);
}
/* SIGNATURE · the orbit */
.hero-bg::before {
  content: ''; position: absolute; top: 50%; left: 50%;
  width: min(1500px, 165vw); aspect-ratio: 2.35; transform: translate(-50%, -58%) rotate(-14deg);
  border: 1px solid color-mix(in srgb, var(--lime) 22%, transparent);
  border-radius: 50%;
  box-shadow:
    0 0 0 1px transparent,
    inset 0 0 120px -40px color-mix(in srgb, var(--lime) 26%, transparent);
}

.hero-grid { display: grid; grid-template-columns: minmax(0,1.08fr) minmax(0,.92fr); gap: clamp(30px, 5vw, 62px); align-items: center; }
@media (max-width: 980px) { .hero-grid { grid-template-columns: 1fr; } }

.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 10px; padding: 6px 13px 6px 7px;
  border: 1px solid var(--line-2); font-family: var(--f-mono); font-size: .74rem;
  color: var(--ink-2); margin-bottom: 24px; letter-spacing: .02em;
}
[data-locale="zh"] .hero-eyebrow { font-family: var(--f-sans); font-size: .8rem; }
.hero-eyebrow .av { display: flex; }
.hero-eyebrow .av i { width: 18px; height: 18px; border: 1px solid var(--bg); background: var(--lime); display: block; }
.hero-eyebrow .av i + i { margin-left: -6px; }
.hero-eyebrow .av i:nth-child(2){ background: var(--sky); }
.hero-eyebrow .av i:nth-child(3){ background: var(--coral); }

.hero h1 { margin-bottom: 24px; }
.hero-sub { font-size: clamp(1.02rem, 1.45vw, 1.16rem); color: var(--ink-2); max-width: 60ch; margin-bottom: 30px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 11px; margin-bottom: 18px; }
.hero-note { font-family: var(--f-mono); font-size: .76rem; color: var(--ink-3); display: flex; align-items: center; gap: 8px; letter-spacing: .02em; }
[data-locale="zh"] .hero-note { font-family: var(--f-sans); font-size: .82rem; }
.hero-badges { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 26px; }

/* device mock — an instrument readout */
.mock { position: relative; display: grid; place-items: center; }
.mock-phone {
  width: min(288px, 74vw); aspect-ratio: 9/19.2; position: relative;
  background: var(--surface); border: 1px solid var(--line-2);
  box-shadow: var(--shadow); padding: 9px; border-radius: var(--r-xl);
}
.mock-screen { height: 100%; background: var(--bg); border: 1px solid var(--line); overflow: hidden; position: relative; display: flex; flex-direction: column; border-radius: 6px; }
.mock-notch { position: absolute; top: 8px; left: 50%; transform: translateX(-50%); width: 66px; height: 16px; background: var(--surface-3); border-radius: var(--r-full); }
.mock-status { display: flex; justify-content: space-between; padding: 11px 14px 0; font-size: .6rem; color: var(--ink-3); font-family: var(--f-mono); }
.mock-body { flex: 1; padding: 22px 12px 12px; display: grid; gap: 7px; align-content: start; }
.mock-row { display: flex; align-items: center; gap: 9px; padding: 8px 9px; background: var(--glass-2); border-left: 2px solid var(--lime-ink); }
.mock-row .ico { width: 24px; height: 24px; display: grid; place-items: center; font-size: .58rem; font-weight: 800; font-family: var(--f-mono); color: #111; flex: none; }
.mock-row .tx { flex: 1; display: grid; gap: 2px; }
.mock-row .tx b { font-size: .69rem; font-weight: 600; color: var(--ink); }
.mock-row .tx s { font-size: .58rem; color: var(--ink-3); text-decoration: none; font-family: var(--f-mono); }
.mock-row .ok { font-size: .57rem; color: var(--lime-ink); font-family: var(--f-mono); font-weight: 700; letter-spacing: .08em; }
.mock-foot { padding: 10px 12px 16px; }
.mock-verdict { padding: 10px 11px; background: color-mix(in srgb, var(--lime) 9%, transparent); border: 1px solid color-mix(in srgb, var(--lime) 32%, transparent); }
.mock-verdict b { display: block; font-size: .62rem; color: var(--lime-ink); font-family: var(--f-mono); letter-spacing: .06em; }
.mock-verdict s { display: block; font-size: .55rem; color: var(--ink-3); text-decoration: none; margin-top: 3px; font-family: var(--f-mono); }

.mock-chip {
  position: absolute; display: flex; align-items: center; gap: 7px; padding: 8px 12px;
  background: var(--surface); border: 1px solid var(--line-2);
  font-family: var(--f-mono); font-size: .72rem; font-weight: 600; white-space: nowrap;
  animation: float 7s ease-in-out infinite; letter-spacing: .02em;
}
[data-locale="zh"] .mock-chip { font-family: var(--f-sans); }
.mock-chip .icon { color: var(--lime-ink); }
.mock-chip.c1 { top: 8%; right: -8%; }
.mock-chip.c2 { bottom: 24%; left: -13%; animation-delay: -2.4s; }
.mock-chip.c3 { bottom: 3%; right: -2%; animation-delay: -4.8s; }
@keyframes float { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-7px)} }
@media (max-width: 560px) { .mock-chip.c2 { left: -4%; } .mock-chip.c1 { right: -2%; } }

/* ---------- marquee ---------- */
.logos { border-block: 1px solid var(--line); padding-block: 24px; overflow: hidden; background: var(--bg-2); }
.logos-title { text-align: center; font-family: var(--f-mono); font-size: .68rem; letter-spacing: .18em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 18px; }
[data-locale="zh"] .logos-title { font-family: var(--f-sans); letter-spacing: .1em; }
.marquee { display: flex; gap: 48px; width: max-content; animation: slide 46s linear infinite; }
.marquee:hover { animation-play-state: paused; }
.marquee span { font-family: var(--f-mono); font-size: .9rem; font-weight: 500; color: var(--ink-3); letter-spacing: .01em; white-space: nowrap; }
.marquee span::before { content: '▸ '; color: var(--lime-ink); opacity: .55; }
@keyframes slide { to { transform: translateX(-50%); } }

/* ---------- grids ---------- */
.grid { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.cols-2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.cols-3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.cols-4 { grid-template-columns: repeat(4, minmax(0,1fr)); }
.cols-6 { grid-template-columns: repeat(6, minmax(0,1fr)); }
@media (max-width: 1080px) { .cols-4, .cols-6 { grid-template-columns: repeat(3, minmax(0,1fr)); } }
@media (max-width: 860px)  { .cols-3, .cols-4, .cols-6 { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (max-width: 620px)  { .cols-2, .cols-3, .cols-4, .cols-6 { grid-template-columns: 1fr; } }

/* ---------- SIGNATURE 2 · crop-bracket cards ---------- */
.card {
  position: relative; padding: clamp(20px, 2.1vw, 26px);
  background: var(--bg); border: 1px solid var(--line);
  transition: background var(--t);
  display: flex; flex-direction: column; gap: 10px;
}
/* inside a 1px-gap grid the container already draws the rules */
.grid > .card, .split > .card { border: 0; }
.split > .card { border: 1px solid var(--line); }
.card::before, .card::after {
  content: ''; position: absolute; width: 11px; height: 11px; pointer-events: none;
  border-color: var(--line-2); transition: border-color var(--t);
}
.card::before { top: 10px; left: 10px; border-top: 1px solid; border-left: 1px solid; }
.card::after  { bottom: 10px; right: 10px; border-bottom: 1px solid; border-right: 1px solid; }
.card:hover { background: var(--surface); }
.card:hover::before, .card:hover::after { border-color: var(--lime-ink); }

.card-icon { display: grid; place-items: center; width: 38px; height: 38px; border: 1px solid var(--line-2); color: var(--lime-ink); margin-bottom: 4px; }
.card-num { font-family: var(--f-mono); font-size: .74rem; color: var(--lime-ink); letter-spacing: .12em; font-weight: 700; }
.card-title { font-size: 1.04rem; }
.card-body { color: var(--ink-2); font-size: .94rem; }
.card-foot { margin-top: auto; padding-top: 8px; font-size: .84rem; color: var(--ink-3); }
.card-arrow { position: absolute; top: 20px; right: 20px; color: var(--ink-3); opacity: 0; transform: translateX(-4px); transition: var(--t); }
.card-link:hover .card-arrow { opacity: 1; transform: translateX(0); color: var(--lime-ink); }
.card.tone-rose::before, .card.tone-rose::after { border-color: color-mix(in srgb, var(--coral) 55%, transparent); }
.card.tone-rose .card-icon { color: var(--coral); border-color: color-mix(in srgb, var(--coral) 45%, transparent); }
.card.tone-rose:hover::before, .card.tone-rose:hover::after { border-color: var(--coral); }
.card.tone-lime .card-icon { color: var(--lime-ink); }
.card.tone-violet .card-icon { color: var(--violet); }


/* ---------- stats ---------- */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(152px,1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.stat { background: var(--bg); padding: 22px 20px; display: grid; gap: 5px; position: relative; }
.stat::before { content: ''; position: absolute; top: 0; left: 0; width: 18px; height: 2px; background: var(--lime); opacity: .5; }
.stat-val { font-family: var(--f-mono); font-size: clamp(1.55rem, 2.7vw, 2.05rem); font-weight: 700; letter-spacing: -.045em; color: var(--ink); }
.stat-label { font-family: var(--f-mono); font-size: .68rem; text-transform: uppercase; letter-spacing: .1em; color: var(--ink-3); line-height: 1.45; }
[data-locale="zh"] .stat-label { font-family: var(--f-sans); text-transform: none; letter-spacing: .02em; font-size: .76rem; }
.stat.tone-lime .stat-val { color: var(--lime-ink); }
.stat.tone-lime::before { opacity: 1; }

/* ---------- tables ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); background: var(--bg); -webkit-overflow-scrolling: touch; }
.table { width: 100%; border-collapse: collapse; font-size: .9rem; min-width: 640px; }
.table caption { text-align: left; padding: 16px 18px 0; color: var(--ink-2); font-size: .88rem; }
.table th, .table td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
.table thead th {
  font-family: var(--f-mono); font-size: .67rem; text-transform: uppercase; letter-spacing: .12em;
  color: var(--ink-3); font-weight: 700; background: var(--bg-2); white-space: nowrap;
  border-bottom-color: var(--line-2);
}
[data-locale="zh"] .table thead th { font-family: var(--f-sans); letter-spacing: .03em; font-size: .76rem; }
.table tbody th { font-weight: 600; color: var(--ink); }
.table td { color: var(--ink-2); }
.table tbody tr:last-child th, .table tbody tr:last-child td { border-bottom: 0; }
.table tbody tr:hover { background: var(--glass); }
.table .col-us { background: color-mix(in srgb, var(--lime) 7%, transparent); }
.table thead th.col-us { color: var(--lime-ink); background: color-mix(in srgb, var(--lime) 12%, transparent); }
[data-locale="zh"] .table { min-width: 580px; }

.mark { display: inline-flex; align-items: center; gap: 6px; font-size: .87rem; }
.mark-yes { color: var(--lime-ink); }
.mark-no { color: var(--coral); }
.mark-partial { color: var(--amber); }

/* ---------- SIGNATURE 4 · segmented meters ---------- */
.bars { display: grid; gap: 11px; }
.bar-row { display: grid; grid-template-columns: minmax(96px, 168px) 1fr auto; gap: 14px; align-items: center; font-size: .88rem; }
.bar-name { color: var(--ink); font-weight: 600; }
.bar-name small { display: block; font-family: var(--f-mono); font-size: .68rem; color: var(--ink-3); font-weight: 400; letter-spacing: .02em; }
.bar-track {
  height: 14px; position: relative; overflow: hidden;
  background: repeating-linear-gradient(90deg, var(--line) 0 3px, transparent 3px 6px);
  border: 1px solid var(--line);
}
.bar-fill {
  height: 100%; width: 0;
  background: repeating-linear-gradient(90deg, var(--ink-3) 0 3px, transparent 3px 6px);
  transition: width 1s var(--ease);
}
.bar-row.us .bar-fill { background: repeating-linear-gradient(90deg, var(--lime-ink) 0 3px, transparent 3px 6px); }
.bar-val { font-family: var(--f-mono); font-size: .84rem; font-weight: 600; color: var(--ink-2); min-width: 46px; text-align: right; }
.bar-row.us .bar-val { color: var(--lime-ink); }
@media (max-width: 560px) { .bar-row { grid-template-columns: 1fr auto; } .bar-track { grid-column: 1 / -1; } }

/* ---------- pricing ---------- */
.price-toggle { display: inline-flex; align-items: center; border: 1px solid var(--line-2); margin-bottom: 10px; }
.price-toggle button { padding: 9px 17px; font-family: var(--f-mono); font-size: .76rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); transition: var(--t); }
[data-locale="zh"] .price-toggle button { font-family: var(--f-sans); letter-spacing: .02em; text-transform: none; font-size: .86rem; }
.price-toggle button[aria-pressed="true"] { background: var(--lime); color: var(--btn-ink); }
.price-toggle .save { font-size: .66rem; padding: 2px 6px; margin-left: 7px; background: color-mix(in srgb, var(--lime) 18%, transparent); color: var(--lime-ink); }
.price-toggle button[aria-pressed="true"] .save { background: rgba(0,0,0,.16); color: inherit; }

.plans { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); align-items: stretch; }
@media (max-width: 1120px) { .plans { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (max-width: 640px)  { .plans { grid-template-columns: 1fr; } }

.plan { position: relative; display: flex; flex-direction: column; gap: 17px; padding: 26px 22px; background: var(--bg); transition: background var(--t); }
.plan:hover { background: var(--surface); }
.plan-featured { background: var(--surface); box-shadow: inset 0 2px 0 var(--lime); }
.plan-badge { position: absolute; top: 0; right: 0; padding: 4px 10px; font-family: var(--f-mono); font-size: .64rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; background: var(--lime); color: var(--btn-ink); }
[data-locale="zh"] .plan-badge { font-family: var(--f-sans); letter-spacing: .02em; text-transform: none; font-size: .7rem; }
.plan-name { font-size: 1.12rem; }
.plan-tagline { font-size: .84rem; color: var(--ink-3); margin-top: 5px; }
.plan-price { display: grid; gap: 2px; padding-bottom: 16px; border-bottom: 1px solid var(--line); }
.plan-amount { font-family: var(--f-mono); font-size: clamp(1.95rem, 3vw, 2.4rem); font-weight: 700; letter-spacing: -.05em; line-height: 1; display: flex; align-items: baseline; }
.plan-amount .cur { font-size: .5em; color: var(--ink-3); }
.plan-per { font-family: var(--f-mono); font-size: .72rem; color: var(--ink-2); margin-top: 7px; letter-spacing: .04em; }
.plan-cycle { font-family: var(--f-mono); font-size: .68rem; color: var(--ink-3); }
[data-locale="zh"] .plan-per, [data-locale="zh"] .plan-cycle { font-family: var(--f-sans); font-size: .78rem; }
.plan-specs { display: flex; flex-wrap: wrap; gap: 5px; }
.plan-specs span { font-family: var(--f-mono); font-size: .68rem; padding: 3px 7px; border: 1px solid var(--line); color: var(--ink-2); }
.plan-list { list-style: none; padding: 0; display: grid; gap: 9px; font-size: .87rem; color: var(--ink-2); flex: 1; }
.plan-list li { display: flex; gap: 9px; align-items: flex-start; }
.li-check { color: var(--lime-ink); flex: none; margin-top: 3px; }
.plan-cta .btn { width: 100%; }

.qty-row { display: flex; flex-wrap: wrap; align-items: center; gap: 13px; margin-top: 16px; }
.qty-row label { font-family: var(--f-mono); font-size: .74rem; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); }
[data-locale="zh"] .qty-row label { font-family: var(--f-sans); letter-spacing: .02em; text-transform: none; font-size: .86rem; }
.qty-input { display: flex; align-items: center; border: 1px solid var(--line-2); }
.qty-input button { width: 34px; height: 36px; display: grid; place-items: center; color: var(--ink-2); font-family: var(--f-mono); }
.qty-input button:hover { color: var(--lime-ink); background: var(--glass-2); }
.qty-input input { width: 58px; text-align: center; background: none; border: 0; font-family: var(--f-mono); font-weight: 700; }
.qty-hint { font-size: .78rem; color: var(--ink-3); }
.qty-badge { font-family: var(--f-mono); font-size: .78rem; color: var(--lime-ink); font-weight: 700; }

/* ---------- devices ---------- */
.devices { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
@media (max-width: 980px) { .devices { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (max-width: 620px) { .devices { grid-template-columns: 1fr; } }

.device { display: flex; flex-direction: column; background: var(--bg); transition: background var(--t); }
.device:hover { background: var(--surface); }
.device-media { display: grid; place-items: center; padding: 20px; border-bottom: 1px solid var(--line); min-height: 186px; background-image: radial-gradient(var(--grid-ink) 1px, transparent 1px); background-size: 16px 16px; }
.device-media .art { width: 100%; max-width: 200px; height: auto; transition: transform .45s var(--ease); }
.device:hover .art { transform: translateY(-4px); }
.device-body { padding: 18px 20px 20px; display: grid; gap: 10px; flex: 1; }
.device-top { display: flex; align-items: center; gap: 10px; justify-content: space-between; }
.device-name { font-size: 1.05rem; }
.device-desc { font-size: .88rem; color: var(--ink-2); }
.device-specs { display: flex; gap: 18px; font-size: .78rem; }
.device-specs dt { font-family: var(--f-mono); color: var(--ink-3); font-size: .66rem; text-transform: uppercase; letter-spacing: .1em; }
.device-specs dd { margin: 0; font-family: var(--f-mono); font-weight: 700; }
.device-foot { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: auto; padding-top: 6px; }
.device-price { display: flex; align-items: baseline; gap: 8px; }
.dp-now { font-family: var(--f-mono); font-size: 1.45rem; font-weight: 700; letter-spacing: -.04em; }
.dp-was { font-family: var(--f-mono); font-size: .84rem; color: var(--ink-3); text-decoration: line-through; }
.device-stock { font-family: var(--f-mono); font-size: .72rem; color: var(--lime-ink); display: flex; align-items: center; gap: 5px; letter-spacing: .03em; }
[data-locale="zh"] .device-stock { font-family: var(--f-sans); font-size: .78rem; }

/* ---------- accordion ---------- */
.accordion { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.acc-item { background: var(--bg); transition: background var(--t); }
.acc-item[open] { background: var(--surface); }
.acc-q { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 17px 20px; cursor: pointer; font-weight: 600; font-size: 1rem; list-style: none; }
.acc-q::-webkit-details-marker { display: none; }
.acc-item[open] .acc-q { color: var(--lime-ink); }
.acc-chev { color: var(--ink-3); transition: transform var(--t); flex: none; }
.acc-item[open] .acc-chev { transform: rotate(180deg); color: var(--lime-ink); }
.acc-a { padding: 0 20px 19px; color: var(--ink-2); font-size: .93rem; display: grid; gap: 10px; max-width: 82ch; }

/* ---------- notes / quotes ---------- */
.note { padding: 15px 17px; border: 1px solid var(--line-2); border-left: 2px solid var(--lime-ink); background: var(--glass); font-size: .9rem; color: var(--ink-2); }
.note-warn { border-left-color: var(--amber); }
.pullquote { margin: 30px 0; padding-left: 22px; border-left: 2px solid var(--lime-ink); font-size: 1.18rem; line-height: 1.45; letter-spacing: -.025em; color: var(--ink); font-weight: 600; }
.pullquote cite { display: block; margin-top: 10px; font-family: var(--f-mono); font-size: .78rem; color: var(--ink-3); font-style: normal; font-weight: 400; }

pre.code { background: var(--bg-2); border: 1px solid var(--line); border-left: 2px solid var(--lime-ink); padding: 15px 17px; overflow-x: auto; color: var(--ink-2); font-size: .82rem; line-height: 1.66; }

/* ---------- prose ---------- */
.prose { max-width: 74ch; }
.prose > * + * { margin-top: 1.1em; }
.prose h2 { margin-top: 2em; margin-bottom: .5em; font-size: clamp(1.35rem, 2.2vw, 1.75rem); scroll-margin-top: 120px; padding-top: .6em; border-top: 1px solid var(--line); }
.prose h3 { margin-top: 1.6em; margin-bottom: .4em; font-size: 1.1rem; color: var(--lime-ink); scroll-margin-top: 120px; }
.prose p, .prose li { color: var(--ink-2); }
.prose ul, .prose ol { padding-left: 1.3em; display: grid; gap: .45em; }
.prose li::marker { color: var(--lime-ink); font-family: var(--f-mono); }
.prose strong { color: var(--ink); font-weight: 700; }
.prose a { color: var(--sky); border-bottom: 1px solid color-mix(in srgb, var(--sky) 40%, transparent); }
.prose a:hover { color: var(--lime-ink); border-bottom-color: var(--lime-ink); }
.prose .table-wrap, .prose .note, .prose .pullquote { margin-block: 1.5em; }

/* ---------- article ---------- */
.article-head { padding-block: clamp(28px, 4.5vw, 52px) 22px; border-bottom: 1px solid var(--line); }
.article-meta { display: flex; flex-wrap: wrap; gap: 9px; align-items: center; font-family: var(--f-mono); font-size: .74rem; color: var(--ink-3); margin-bottom: 16px; letter-spacing: .02em; }
[data-locale="zh"] .article-meta { font-family: var(--f-sans); font-size: .8rem; }
.article-meta .pc-cat { color: var(--lime-ink); font-weight: 700; }
.article-lede { font-size: clamp(1.02rem, 1.45vw, 1.16rem); color: var(--ink-2); max-width: 70ch; margin-top: 16px; }
.article-body { display: grid; grid-template-columns: minmax(0,1fr) 244px; gap: clamp(28px, 4vw, 58px); align-items: start; padding-block: clamp(26px, 4vw, 46px); }
@media (max-width: 980px) { .article-body { grid-template-columns: 1fr; } .toc { order: -1; position: static !important; } }
.toc { position: sticky; top: 118px; border: 1px solid var(--line); padding: 16px; background: var(--bg-2); font-size: .84rem; }
.toc-title { font-family: var(--f-mono); font-size: .66rem; text-transform: uppercase; letter-spacing: .15em; color: var(--ink-3); margin-bottom: 10px; font-weight: 700; }
.toc ol { list-style: none; padding: 0; display: grid; gap: 6px; }
.toc a { color: var(--ink-2); display: block; padding-left: 11px; border-left: 2px solid var(--line); transition: var(--t); }
.toc a:hover, .toc a.active { color: var(--lime-ink); border-color: var(--lime-ink); }

.tldr { border: 1px solid var(--line-2); border-left: 2px solid var(--lime-ink); background: var(--bg-2); padding: 19px 21px; margin-bottom: 26px; }
.tldr-label { font-family: var(--f-mono); font-size: .66rem; text-transform: uppercase; letter-spacing: .17em; color: var(--lime-ink); font-weight: 700; margin-bottom: 8px; display: flex; align-items: center; gap: 8px; }
[data-locale="zh"] .tldr-label { font-family: var(--f-sans); letter-spacing: .05em; font-size: .74rem; }
.tldr p { color: var(--ink); font-size: .96rem; }

/* ---------- blog cards ---------- */
.posts { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
@media (max-width: 980px) { .posts { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (max-width: 640px) { .posts { grid-template-columns: 1fr; } }
.post-card { display: flex; flex-direction: column; background: var(--bg); transition: background var(--t); }
.post-card:hover { background: var(--surface); }
.pc-media { display: block; aspect-ratio: 16/8; overflow: hidden; border-bottom: 1px solid var(--line); }
.pc-media .hero-art { width: 100%; height: 100%; }
.pc-body { padding: 19px 21px 23px; display: grid; gap: 9px; }
.pc-meta { display: flex; flex-wrap: wrap; gap: 7px; font-family: var(--f-mono); font-size: .71rem; color: var(--ink-3); }
[data-locale="zh"] .pc-meta { font-family: var(--f-sans); font-size: .78rem; }
.pc-cat { color: var(--lime-ink); font-weight: 700; text-transform: uppercase; letter-spacing: .08em; }
.pc-title { font-size: 1.06rem; line-height: 1.26; }
.pc-title a:hover { color: var(--lime-ink); }
.pc-excerpt { font-size: .88rem; color: var(--ink-2); }
.post-card-lg { grid-column: span 2; }
.post-card-lg .pc-media { aspect-ratio: 16/6.5; }
.post-card-lg .pc-title { font-size: 1.4rem; }
@media (max-width: 640px) { .post-card-lg { grid-column: span 1; } }

/* ---------- testimonials ---------- */
.quotes { columns: 3; column-gap: 16px; }
@media (max-width: 980px) { .quotes { columns: 2; } }
@media (max-width: 640px) { .quotes { columns: 1; } }
.quote-card { break-inside: avoid; margin-bottom: 16px; padding: 20px; border: 1px solid var(--line); background: var(--bg); display: grid; gap: 12px; transition: var(--t); }
.quote-card:hover { border-color: var(--line-2); background: var(--surface); }
.qc-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.qc-body { font-size: .93rem; color: var(--ink); }
.qc-who { display: flex; align-items: center; gap: 11px; padding-top: 10px; border-top: 1px solid var(--line); }
.qc-av { width: 32px; height: 32px; background: var(--lime); display: grid; place-items: center; font-family: var(--f-mono); font-size: .74rem; font-weight: 800; color: var(--btn-ink); flex: none; }
.qc-name { font-size: .87rem; font-weight: 700; }
.qc-role { font-size: .74rem; color: var(--ink-3); }
.qc-meta { margin-left: auto; text-align: right; font-family: var(--f-mono); font-size: .68rem; color: var(--ink-3); }
.stars { display: inline-flex; gap: 1px; }
.stars .st { color: var(--line-2); }
.stars .st.on { color: var(--lime-ink); }

/* ---------- networks ---------- */
.nets { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
@media (max-width: 900px) { .nets { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (max-width: 560px) { .nets { grid-template-columns: 1fr; } }
.net { position: relative; padding: 22px; background: var(--bg); display: grid; gap: 12px; overflow: hidden; transition: var(--t); }
.net::before { content:''; position: absolute; inset: 0 0 auto 0; height: 2px; background: var(--nc, var(--lime)); }
.net:hover { background: var(--surface); }
.net-top { display: flex; align-items: center; gap: 11px; }
.net-mark { width: 34px; height: 34px; display: grid; place-items: center; font-family: var(--f-mono); font-weight: 800; font-size: .84rem; background: var(--nc); color: var(--ni, #111); flex: none; }
.net-name { font-size: 1.04rem; font-weight: 700; }
.net-stats { display: flex; gap: 20px; font-size: .8rem; }
.net-stats span { display: grid; gap: 2px; }
.net-stats .k { font-family: var(--f-mono); color: var(--ink-3); font-size: .64rem; text-transform: uppercase; letter-spacing: .1em; }
[data-locale="zh"] .net-stats .k { font-family: var(--f-sans); letter-spacing: .02em; font-size: .72rem; }
.net-stats .v { font-family: var(--f-mono); font-weight: 700; }
.net-link { font-family: var(--f-mono); font-size: .74rem; letter-spacing: .08em; text-transform: uppercase; color: var(--lime-ink); display: inline-flex; align-items: center; gap: 5px; margin-top: auto; }
[data-locale="zh"] .net-link { font-family: var(--f-sans); letter-spacing: .02em; text-transform: none; font-size: .84rem; }
.net-more { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 18px; }
.net-more span { font-family: var(--f-mono); font-size: .73rem; padding: 5px 10px; border: 1px solid var(--line); color: var(--ink-3); }

/* ---------- steps / timeline ---------- */
.steps { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.step { background: var(--bg); padding: 24px; display: grid; gap: 8px; grid-template-columns: 40px 1fr; align-items: start; }
.step-n { width: 30px; height: 30px; display: grid; place-items: center; font-family: var(--f-mono); font-size: .78rem; font-weight: 800; border: 1px solid var(--lime-ink); color: var(--lime-ink); grid-row: span 2; }
.step h3 { font-size: 1rem; }
.step p { color: var(--ink-2); font-size: .9rem; grid-column: 2; }
@media (min-width: 900px) { .steps { grid-template-columns: repeat(4, 1fr); } }

.tl { display: grid; gap: 0; position: relative; }
.tl::before { content:''; position: absolute; left: 5px; top: 8px; bottom: 8px; width: 1px; background: var(--line-2); }
.tl-item { display: grid; grid-template-columns: 26px 1fr; gap: 16px; padding-bottom: 26px; }
.tl-dot { width: 11px; height: 11px; background: var(--lime); margin-top: 7px; z-index: 1; }
.tl-year { font-family: var(--f-mono); font-size: .74rem; color: var(--lime-ink); letter-spacing: .09em; font-weight: 700; }
.tl-item h3 { font-size: 1.02rem; margin: 5px 0 6px; }
.tl-item p { color: var(--ink-2); font-size: .91rem; }

/* ---------- status ---------- */
.status-hero { display: flex; align-items: center; gap: 14px; padding: 19px 22px; border: 1px solid color-mix(in srgb, var(--lime) 40%, transparent); background: color-mix(in srgb, var(--lime) 7%, transparent); }
.status-hero .pip { width: 10px; height: 10px; background: var(--lime); animation: ping 2.4s infinite; }
.status-hero h2 { font-size: 1.2rem; }
.svc-list { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.svc { background: var(--bg); padding: 14px 20px; display: flex; align-items: center; justify-content: space-between; gap: 14px; }
.svc-name { font-size: .92rem; font-weight: 600; }
.svc-bars { display: flex; gap: 2px; }
.svc-bars i { width: 3px; height: 20px; background: var(--lime); }
.svc-bars i.dim { background: var(--amber); }
.svc-up { font-family: var(--f-mono); font-size: .8rem; font-weight: 700; color: var(--lime-ink); min-width: 58px; text-align: right; }
@media (max-width: 620px) { .svc-bars { display: none; } }

.regions { display: grid; grid-template-columns: repeat(auto-fill, minmax(184px,1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.region { padding: 15px 17px; background: var(--bg); display: grid; gap: 5px; }
.region-top { display: flex; align-items: center; gap: 9px; }
.region-flag { font-size: 1.1rem; }
.region-city { font-weight: 700; font-size: .93rem; }
.region-id { font-family: var(--f-mono); font-size: .71rem; color: var(--ink-3); letter-spacing: .04em; }
.region-meta { display: flex; gap: 14px; font-family: var(--f-mono); font-size: .74rem; color: var(--ink-3); }
.region-meta b { color: var(--lime-ink); font-weight: 700; }

/* ---------- checkout ---------- */
.checkout { display: grid; grid-template-columns: minmax(0,1.25fr) minmax(0,.75fr); gap: clamp(20px, 2.6vw, 34px); align-items: start; }
@media (max-width: 900px) { .checkout { grid-template-columns: 1fr; } }
.co-panel { border: 1px solid var(--line); background: var(--bg); padding: clamp(20px, 2.4vw, 28px); }
.co-panel + .co-panel { margin-top: 14px; }
.co-step { display: flex; align-items: center; gap: 10px; font-family: var(--f-mono); font-size: .68rem; text-transform: uppercase; letter-spacing: .15em; color: var(--ink-3); font-weight: 700; margin-bottom: 18px; }
[data-locale="zh"] .co-step { font-family: var(--f-sans); letter-spacing: .05em; text-transform: none; font-size: .78rem; }
.co-step i { width: 20px; height: 20px; border: 1px solid var(--lime-ink); display: grid; place-items: center; font-size: .68rem; color: var(--lime-ink); font-style: normal; letter-spacing: 0; }
.field { display: grid; gap: 6px; margin-bottom: 15px; }
.field label { font-family: var(--f-mono); font-size: .7rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; color: var(--ink-3); }
[data-locale="zh"] .field label { font-family: var(--f-sans); letter-spacing: .02em; text-transform: none; font-size: .84rem; }
.field input, .field select, .field textarea {
  width: 100%; padding: 11px 13px; border: 1px solid var(--line-2);
  background: var(--bg-2); color: var(--ink); transition: border-color var(--t);
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--lime-ink); outline: none; }
.field small { font-size: .77rem; color: var(--ink-3); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 13px; }
@media (max-width: 560px) { .field-row { grid-template-columns: 1fr; } }

.summary { position: sticky; top: 118px; }
.sum-line { display: flex; justify-content: space-between; gap: 14px; padding: 9px 0; font-size: .9rem; color: var(--ink-2); border-bottom: 1px solid var(--line); }
.sum-line b { font-family: var(--f-mono); color: var(--ink); font-weight: 700; }
.sum-total { display: flex; justify-content: space-between; align-items: baseline; padding-top: 16px; font-family: var(--f-mono); font-size: .76rem; text-transform: uppercase; letter-spacing: .12em; color: var(--ink-3); }
[data-locale="zh"] .sum-total { font-family: var(--f-sans); letter-spacing: .02em; text-transform: none; font-size: .9rem; }
.sum-total b { font-family: var(--f-mono); font-size: 1.8rem; font-weight: 700; letter-spacing: -.045em; color: var(--lime-ink); text-transform: none; }
.sum-secure { display: grid; gap: 8px; margin-top: 18px; font-size: .79rem; color: var(--ink-3); }
.sum-secure li { display: flex; gap: 8px; align-items: flex-start; }
.sum-secure .icon { color: var(--lime-ink); flex: none; margin-top: 2px; }
.assets { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 14px; }
.assets span { font-family: var(--f-mono); font-size: .68rem; padding: 4px 7px; border: 1px solid var(--line); color: var(--ink-2); }
.co-error { display: none; margin-top: 12px; padding: 11px 13px; border: 1px solid var(--coral); border-left-width: 2px; background: color-mix(in srgb, var(--coral) 8%, transparent); color: var(--coral); font-size: .86rem; }
.co-error.show { display: block; }

/* ---------- credit top-up selector ---------- */
.topup { margin: 16px 0 4px; padding: 15px 0 0; border-top: 1px solid var(--line-2); }
.topup-head { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; margin-bottom: 11px; }
.topup-head > span:first-child { font-family: var(--f-mono); font-size: .68rem; text-transform: uppercase; letter-spacing: .14em; color: var(--ink); font-weight: 700; }
[data-locale="zh"] .topup-head > span:first-child { font-family: var(--f-sans); letter-spacing: .04em; text-transform: none; font-size: .84rem; }
.topup-min { font-family: var(--f-mono); font-size: .68rem; color: var(--ink-3); }
[data-locale="zh"] .topup-min { font-family: var(--f-sans); font-size: .76rem; }

.topup-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
@media (max-width: 420px) { .topup-grid { grid-template-columns: repeat(2, minmax(0,1fr)); } }
.topup-opt {
  background: var(--bg); padding: 11px 9px; display: grid; gap: 2px; text-align: center;
  transition: background var(--t), color var(--t); position: relative;
}
.topup-opt:hover:not(:disabled) { background: var(--surface); }
.topup-opt:disabled { opacity: .32; cursor: not-allowed; }
.topup-opt[aria-pressed="true"] { background: color-mix(in srgb, var(--lime) 14%, var(--bg)); box-shadow: inset 0 2px 0 var(--lime); }
.to-amt { font-family: var(--f-mono); font-size: 1.02rem; font-weight: 700; letter-spacing: -.03em; color: var(--ink); }
.to-bonus { font-family: var(--f-mono); font-size: .66rem; font-weight: 700; color: var(--lime-ink); letter-spacing: .04em; }
.topup-opt[aria-pressed="false"] .to-bonus:not(:empty) { opacity: .8; }
.to-label { font-family: var(--f-mono); font-size: .6rem; text-transform: uppercase; letter-spacing: .09em; color: var(--ink-3); }
[data-locale="zh"] .to-label { font-family: var(--f-sans); letter-spacing: .02em; text-transform: none; font-size: .68rem; }
.topup-custom .to-amt { display: flex; align-items: baseline; justify-content: center; gap: 1px; }
.topup-custom input {
  width: 4.6ch; background: none; border: 0; border-bottom: 1px solid var(--line-2);
  font-family: var(--f-mono); font-size: 1.02rem; font-weight: 700; text-align: center;
  padding: 0; color: var(--ink); -moz-appearance: textfield;
}
.topup-custom input::-webkit-outer-spin-button, .topup-custom input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.topup-custom input:focus { outline: none; border-bottom-color: var(--lime-ink); }

.topup-nudge {
  display: block; width: 100%; margin-top: 9px; padding: 9px 11px; text-align: left;
  border: 1px solid color-mix(in srgb, var(--lime) 40%, transparent);
  background: color-mix(in srgb, var(--lime) 7%, transparent);
  color: var(--lime-ink); font-size: .8rem; line-height: 1.45;
  transition: background var(--t);
}
.topup-nudge:hover { background: color-mix(in srgb, var(--lime) 13%, transparent); }
.topup-nudge[hidden] { display: none; }

/* ---------- credits page ---------- */
.credit-tiers { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.credit-tier { background: var(--bg); display: grid; grid-template-columns: 1fr 1fr 1fr 1.7fr; gap: 12px; padding: 14px 18px; align-items: baseline; }
.credit-tier.head { background: var(--bg-2); font-family: var(--f-mono); font-size: .66rem; text-transform: uppercase; letter-spacing: .12em; color: var(--ink-3); font-weight: 700; }
[data-locale="zh"] .credit-tier.head { font-family: var(--f-sans); letter-spacing: .03em; text-transform: none; font-size: .76rem; }
.credit-tier b { font-family: var(--f-mono); font-size: 1.05rem; font-weight: 700; letter-spacing: -.03em; }
.credit-tier .bonus { font-family: var(--f-mono); font-weight: 700; color: var(--lime-ink); }
.credit-tier .buys { font-size: .84rem; color: var(--ink-2); }
.credit-tier.best { box-shadow: inset 2px 0 0 var(--lime); }
@media (max-width: 640px) {
  .credit-tier { grid-template-columns: 1fr 1fr; }
  .credit-tier .buys { grid-column: 1 / -1; }
  .credit-tier.head { display: none; }
}

.item-row { display: flex; align-items: center; gap: 14px; padding: 13px 0; border-bottom: 1px solid var(--line); }
.item-art { width: 48px; height: 48px; border: 1px solid var(--line-2); display: grid; place-items: center; color: var(--lime-ink); flex: none; }
.item-info { flex: 1; display: grid; gap: 2px; }
.item-info b { font-size: .96rem; font-weight: 700; }
.item-info small { font-size: .78rem; color: var(--ink-3); }
.item-price { font-family: var(--f-mono); font-weight: 700; }

/* ---------- CTA band ---------- */
.cta-band {
  position: relative; padding: clamp(34px, 5vw, 66px); overflow: hidden; text-align: center;
  border: 1px solid var(--line-2); background: var(--bg-2);
}
.cta-band::after {
  content:''; position: absolute; inset: 0; pointer-events: none;
  background-image: radial-gradient(var(--grid-ink) 1px, transparent 1px);
  background-size: 20px 20px; mask-image: radial-gradient(ellipse 75% 78% at 50% 0%, #000, transparent 76%);
}
.cta-band::before {
  content:''; position: absolute; top: -46%; left: 50%; transform: translateX(-50%) rotate(-12deg);
  width: 130%; aspect-ratio: 2.4; border: 1px solid color-mix(in srgb, var(--lime) 20%, transparent);
  border-radius: 50%; pointer-events: none;
}
.cta-band > * { position: relative; z-index: 1; }
.cta-band h2 { max-width: 20ch; margin-inline: auto; }
.cta-band p { color: var(--ink-2); max-width: 58ch; margin: 16px auto 26px; }
.cta-band .row { display: flex; flex-wrap: wrap; gap: 11px; justify-content: center; }

/* ---------- footer ---------- */
.site-footer { border-top: 1px solid var(--line-2); background: var(--bg-2); padding-top: clamp(38px, 4.6vw, 60px); margin-top: clamp(38px, 5vw, 72px); }
.foot-news { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: 24px; align-items: center; padding-bottom: 38px; border-bottom: 1px solid var(--line); }
@media (max-width: 820px) { .foot-news { grid-template-columns: 1fr; } }
.foot-news-title { font-size: 1.3rem; }
.foot-news-desc { color: var(--ink-2); font-size: .9rem; margin-top: 8px; }
.foot-form { display: grid; grid-template-columns: 1fr auto; gap: 9px; }
.foot-form input { padding: 12px 14px; border: 1px solid var(--line-2); background: var(--bg); color: var(--ink); }
.foot-form input:focus { border-color: var(--lime-ink); outline: none; }
.foot-form-note { grid-column: 1 / -1; font-size: .76rem; color: var(--ink-3); }

.foot-main { display: grid; grid-template-columns: minmax(0,.9fr) minmax(0,2.1fr); gap: clamp(26px, 4vw, 54px); padding-block: 40px; }
@media (max-width: 960px) { .foot-main { grid-template-columns: 1fr; } }
.foot-tagline { font-size: .86rem; color: var(--ink-2); margin: 15px 0; max-width: 42ch; }
.foot-social { display: flex; gap: 6px; }
.foot-social a { width: 34px; height: 34px; display: grid; place-items: center; border: 1px solid var(--line); color: var(--ink-3); transition: var(--t); }
.foot-social a:hover { color: var(--lime-ink); border-color: var(--lime-ink); }
.foot-built { margin-top: 15px; font-family: var(--f-mono); font-size: .74rem; color: var(--ink-2); display: flex; align-items: center; gap: 6px; }
.foot-cols { display: grid; grid-template-columns: repeat(5, minmax(0,1fr)); gap: 20px; }
@media (max-width: 860px) { .foot-cols { grid-template-columns: repeat(3, minmax(0,1fr)); } }
@media (max-width: 520px) { .foot-cols { grid-template-columns: repeat(2, minmax(0,1fr)); } }
.foot-col-title { font-family: var(--f-mono); font-size: .67rem; text-transform: uppercase; letter-spacing: .15em; color: var(--lime-ink); font-weight: 700; margin-bottom: 12px; }
[data-locale="zh"] .foot-col-title { font-family: var(--f-sans); letter-spacing: .04em; font-size: .78rem; }
.foot-col ul { list-style: none; padding: 0; display: grid; gap: 7px; }
.foot-col a { font-size: .85rem; color: var(--ink-2); transition: color var(--t); }
.foot-col a:hover { color: var(--lime-ink); }

.foot-crypto { display: flex; flex-wrap: wrap; align-items: center; gap: 13px; padding-block: 18px; border-top: 1px solid var(--line); }
.foot-crypto-label { display: inline-flex; align-items: center; gap: 7px; font-family: var(--f-mono); font-size: .76rem; color: var(--ink-2); }
[data-locale="zh"] .foot-crypto-label { font-family: var(--f-sans); font-size: .84rem; }
.crypto-list { display: flex; flex-wrap: wrap; gap: 5px; list-style: none; padding: 0; }
.crypto-list li { font-family: var(--f-mono); font-size: .68rem; padding: 3px 7px; border: 1px solid var(--line); color: var(--ink-2); }
.foot-bottom { display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; padding-block: 18px 28px; border-top: 1px solid var(--line); font-family: var(--f-mono); font-size: .74rem; color: var(--ink-2); }
[data-locale="zh"] .foot-bottom { font-family: var(--f-sans); font-size: .8rem; }
.foot-meta a:hover { color: var(--lime-ink); }

/* ---------- crumbs ---------- */
.crumbs ol { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 0; font-family: var(--f-mono); font-size: .73rem; color: var(--ink-3); letter-spacing: .03em; }
[data-locale="zh"] .crumbs ol { font-family: var(--f-sans); font-size: .8rem; }
.crumbs li + li::before { content: '/'; margin-right: 8px; color: var(--line-2); }
.crumbs a:hover { color: var(--lime-ink); }

/* ---------- misc ---------- */
.split { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: clamp(20px, 3vw, 40px); align-items: center; }
@media (max-width: 860px) { .split { grid-template-columns: 1fr; } }
.lead-list { list-style: none; padding: 0; display: grid; gap: 11px; }
.lead-list li { display: flex; gap: 11px; align-items: flex-start; font-size: .93rem; color: var(--ink-2); }
.lead-list .icon { color: var(--lime-ink); flex: none; margin-top: 4px; }

.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chips a, .chips span { font-family: var(--f-mono); font-size: .77rem; padding: 7px 13px; border: 1px solid var(--line); color: var(--ink-2); transition: var(--t); }
.chips a:hover { border-color: var(--lime-ink); color: var(--lime-ink); }
.chips a[aria-current="true"] { background: var(--lime); color: var(--btn-ink); border-color: var(--lime-ink); }

.kv { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.kv > div { background: var(--bg); display: grid; grid-template-columns: minmax(120px, 32%) 1fr; gap: 14px; padding: 12px 17px; font-size: .89rem; }
.kv dt { font-family: var(--f-mono); font-size: .72rem; text-transform: uppercase; letter-spacing: .09em; color: var(--ink-3); }
[data-locale="zh"] .kv dt { font-family: var(--f-sans); letter-spacing: .02em; text-transform: none; font-size: .84rem; }
.kv dd { margin: 0; color: var(--ink); }

.glossary-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
@media (max-width: 760px) { .glossary-grid { grid-template-columns: 1fr; } }
.term { padding: 17px 19px; background: var(--bg); scroll-margin-top: 120px; transition: background var(--t); }
.term:hover { background: var(--surface); }
.term dt { font-family: var(--f-mono); font-weight: 700; margin-bottom: 6px; font-size: .93rem; color: var(--lime-ink); letter-spacing: .01em; }
.term dd { margin: 0; font-size: .88rem; color: var(--ink-2); }

.reveal { opacity: 0; transform: translateY(14px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; } }

.hairline { height: 1px; background: var(--line); border: 0; margin-block: clamp(30px, 4vw, 52px); }
.text-c { text-align: center; }
.mt-l { margin-top: clamp(24px, 3vw, 38px); }
.mt-m { margin-top: 18px; }
.muted { font-family: var(--f-mono); color: var(--ink-3); font-size: .78rem; line-height: 1.6; letter-spacing: .01em; }
[data-locale="zh"] .muted { font-family: var(--f-sans); font-size: .84rem; }
.max-70 { max-width: 70ch; }

@media print {
  .site-header, .site-footer, .cta-band, .toc { display: none !important; }
  body { background: #fff; color: #000; }
}