/**
 * XIATRE house chrome — unified triptych cards (XIRE · XISA · XIVO).
 */

:root {
  --font-sans: "LXGW WenKai", "PingFang SC", "Microsoft YaHei UI", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;

  --house-bg: #07080c;
  --house-fg: #f1f5f9;
  --house-muted: #8a8e96;
  --house-line: #2a2e38;
  --house-radius: 6px;
  --card-radius: 1rem;

  --house-tool-accent: 241 245 249;
  --house-tool-accent-soft: 226 232 240;
  --house-tool-accent-muted: 148 163 184;
}

* {
  box-sizing: border-box;
}

main {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(ellipse 120% 80% at 50% -20%, rgb(30 35 48 / 0.45), transparent 55%),
    var(--house-bg);
  color: var(--house-fg);
  font-family: var(--font-sans);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100dvh;
}

a {
  color: inherit;
}

button {
  font: inherit;
}

.shell {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
  width: 100%;
  margin: 0 auto;
  padding-block: 1.1rem 1.75rem;
  padding-inline: max(
    clamp(1.25rem, 3vw, 2.5rem),
    env(safe-area-inset-left),
    env(safe-area-inset-right)
  );
}

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 2.25rem;
  flex-wrap: nowrap;
}

.top-tools {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  flex-shrink: 0;
}

.house-mark {
  display: inline-flex;
  align-items: center;
  gap: 0.48rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  line-height: 1;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--house-fg);
  flex-shrink: 0;
}

.house-mark-logo {
  display: block;
  width: 1.7rem;
  height: 1.7rem;
  flex-shrink: 0;
}

.house-mark-name {
  padding-top: 0.06em;
}

.house-mark:hover {
  opacity: 0.85;
}

.house-header-tools {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.house-locale-host {
  position: relative;
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  line-height: 0;
}

.house-tool-trigger {
  box-sizing: border-box;
  display: inline-flex;
  flex-shrink: 0;
  height: 2.25rem;
  width: 2.25rem;
  align-items: center;
  justify-content: center;
  margin: 0;
  padding: 0;
  border: 1px solid var(--house-line);
  border-radius: 0.75rem;
  background: color-mix(in srgb, var(--house-bg) 86%, transparent);
  box-shadow:
    inset 0 1px 0 0 rgb(255 255 255 / 0.05),
    inset 0 -1px 0 0 rgb(0 0 0 / 0.12);
  color: var(--house-muted);
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  line-height: 0;
  vertical-align: middle;
  transition:
    border-color 150ms ease,
    box-shadow 150ms ease,
    color 150ms ease;
}

.house-tool-trigger:hover {
  border-color: color-mix(in srgb, var(--house-fg) 22%, var(--house-line));
  color: var(--house-fg);
}

.house-tool-trigger:focus {
  outline: none;
}

.house-tool-trigger:focus-visible,
.house-tool-trigger[aria-expanded="true"] {
  border-color: rgb(255 255 255 / 0.28);
  box-shadow:
    0 0 0 2px rgb(255 255 255 / 0.08),
    inset 0 1px 0 0 rgb(255 255 255 / 0.05),
    inset 0 -1px 0 0 rgb(0 0 0 / 0.12);
  color: var(--house-fg);
}

.house-tool-icon,
.house-header-tools .xiatre-account-icon {
  display: block;
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
  pointer-events: none;
  opacity: 0.9;
}

.house-locale-flag {
  display: block;
  overflow: hidden;
  flex-shrink: 0;
  width: 1.35rem;
  height: 0.9rem;
  border-radius: 0.2rem;
  line-height: 0;
  box-shadow: 0 0 0 1px rgb(255 255 255 / 0.08);
  pointer-events: none;
}

.house-locale-flag svg {
  display: block;
  width: 100%;
  height: 100%;
}

#house-locale-menu {
  position: fixed;
  z-index: 130;
  box-sizing: border-box;
  min-width: 11.5rem;
  max-height: min(20rem, calc(100dvh - 1.5rem));
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 0.35rem;
  border: 1px solid rgb(255 255 255 / 0.12);
  border-radius: 0.75rem;
  background: #0a0b0f;
  box-shadow:
    0 18px 40px -12px rgb(0 0 0 / 0.72),
    inset 0 1px 0 0 rgb(255 255 255 / 0.04);
}

#house-locale-menu[hidden] {
  display: none !important;
}

#house-locale-menu [data-locale] {
  display: flex;
  width: 100%;
  align-items: center;
  gap: 0.7rem;
  padding: 0.55rem 0.65rem;
  border: 0;
  border-radius: 0.5rem;
  background: transparent;
  color: var(--house-fg);
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 500;
  line-height: 1.2;
  text-align: left;
  cursor: pointer;
  transition:
    background-color 120ms ease,
    color 120ms ease;
}

#house-locale-menu [data-locale]:hover,
#house-locale-menu [data-locale]:focus-visible {
  background: rgb(255 255 255 / 0.06);
  outline: none;
}

#house-locale-menu [data-locale][aria-selected="true"] {
  background: rgb(255 255 255 / 0.08);
  color: var(--house-fg);
}

#house-locale-menu [data-locale][aria-selected="true"]:hover,
#house-locale-menu [data-locale][aria-selected="true"]:focus-visible {
  background: rgb(255 255 255 / 0.12);
}

#ui-tip {
  position: fixed;
  z-index: 100010;
  box-sizing: border-box;
  max-width: min(16rem, calc(100vw - 1rem));
  margin: 0;
  padding: 0.4rem 0.7rem;
  border-radius: 0.75rem;
  border: 1px solid rgb(255 255 255 / 0.12);
  background: #0a0b0f;
  color: var(--house-fg);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1.35;
  overflow-wrap: break-word;
  box-shadow:
    0 18px 40px -12px rgb(0 0 0 / 0.72),
    inset 0 1px 0 0 rgb(255 255 255 / 0.04);
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(2px);
  transition:
    opacity 120ms ease,
    transform 120ms ease,
    visibility 120ms ease;
}

#ui-tip.is-on {
  opacity: 1;
  visibility: visible;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  #ui-tip {
    transition: none;
  }
}

.house-header-tools .xiatre-account {
  display: flex;
  align-items: center;
  line-height: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

.house-header-tools .xiatre-account-chip {
  display: flex;
  align-items: center;
  line-height: 0;
}

.house-header-tools .house-tool-trigger[aria-busy="true"] {
  cursor: default;
  pointer-events: none;
}

.house-header-tools .house-tool-trigger[aria-busy="true"] .house-tool-icon {
  opacity: 0.55;
}

.house-header-tools .xiatre-account-menu {
  z-index: 110;
}

.triptych {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 29rem));
  justify-content: center;
  column-gap: clamp(1.1rem, 1.6vw, 1.65rem);
  align-items: stretch;
  flex: 1;
  width: min(92rem, 100%);
  margin-inline: auto;
  padding: 2rem 0 0;
}

.triptych-col {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
}

.card {
  min-width: 0;
  width: 100%;
  display: flex;
  flex: 1;
  min-height: 0;
  aspect-ratio: 3 / 4.2;
  border-radius: var(--card-radius);
  overflow: hidden;
}

.card-inner {
  --sub-font: clamp(0.78rem, 0.92vw, 0.86rem);
  --copy-max: calc(25.5 * var(--sub-font));
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 100%;
  width: 100%;
  padding: 1.2rem 1.4rem 1.15rem;
}

.card-brand {
  flex-shrink: 0;
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}

.card-preview {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 0;
  overflow: hidden;
  padding: 0.45rem 0.15rem 0.55rem;
}

.card-preview img,
.card-preview-art {
  display: block;
  max-width: min(100%, 13rem);
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  opacity: 0.92;
  filter: drop-shadow(0 8px 18px rgb(0 0 0 / 0.28));
}

.card-preview-art .pp-window {
  fill: rgb(var(--ng950));
  stroke: rgb(var(--ac));
}

.card-preview-art .pp-dot,
.card-preview-art .pp-mark {
  fill: rgb(var(--ac));
}

.card-preview-art .pp-split {
  stroke: rgb(var(--ac));
}

.card-preview-art .pp-panel {
  fill: rgb(var(--ng50) / 0.07);
  stroke: rgb(var(--ng400) / 0.85);
}

.card-preview-art .pp-chip {
  fill: rgb(var(--ng50) / 0.1);
  stroke: rgb(var(--ng400) / 0.8);
}

.card-preview-art .pp-accent {
  fill: rgb(var(--ac));
}

.card-preview-art .pp-accent-soft {
  fill: rgb(var(--ac) / 0.55);
}

.card-preview-art .pp-tile {
  fill: rgb(var(--ng50) / 0.08);
  stroke: rgb(var(--ac) / 0.9);
}

.card-preview-art .pp-tile-muted {
  fill: rgb(var(--ng50) / 0.05);
  stroke: rgb(var(--ng400) / 0.55);
}

.card-preview-art .pp-bar {
  fill: rgb(var(--ng50) / 0.08);
  stroke: rgb(var(--ac) / 0.45);
}

.card-preview-art .pp-frame {
  fill: rgb(var(--ng950));
  stroke: rgb(var(--ac));
}

.card-copy {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: auto;
  padding: 0.55rem 0 1.1rem;
}

.card-brand-name {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: rgb(var(--ac) / 0.92);
  user-select: none;
}

.card--xisa .card-brand-name {
  letter-spacing: 0.22em;
}

.card-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3.65rem;
  height: 3.65rem;
  border: 0;
  background: transparent;
  padding: 0;
  cursor: pointer;
  color: rgb(var(--ac) / 0.92);
  transition: color 0.25s ease, transform 0.25s ease;
}

.card-logo svg {
  width: 2.35rem;
  height: 2.35rem;
}

.card-logo:hover {
  color: rgb(var(--ac));
  transform: scale(1.04);
}

.card-logo:focus {
  outline: none;
}

.card-logo:focus-visible {
  border-radius: 0.5rem;
  box-shadow: 0 0 0 1px rgb(var(--ac) / 0.55);
}

.card h2 {
  margin: 0;
  flex-shrink: 0;
  font-size: clamp(1.14rem, 1.55vw, 1.28rem);
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.55;
  padding: 0.12em 0;
  text-align: center;
}

.sub {
  --sub-lines: 4;
  --sub-pad-top: 0.72rem;
  --sub-pad-bottom: 0.78rem;
  --sub-leading: 1.85;
  display: flex;
  flex-direction: column;
  justify-content: center;
  margin: 0.85rem auto 0;
  width: 100%;
  max-width: var(--copy-max);
  padding: var(--sub-pad-top) 1.05rem var(--sub-pad-bottom);
  border-radius: 0.7rem;
  border: 1px solid rgb(var(--ac) / 0.28);
  background: rgb(var(--ac) / 0.08);
  font-size: var(--sub-font);
  font-weight: 400;
  line-height: var(--sub-leading);
  letter-spacing: 0.04em;
  text-indent: 2em;
  text-align: justify;
  text-justify: inter-character;
  text-align-last: start;
  text-wrap: pretty;
  hanging-punctuation: allow-end;
  height: calc(
    var(--sub-pad-top) + var(--sub-pad-bottom) + 2px +
      (var(--sub-lines) * var(--sub-leading) * 1em)
  );
  overflow: hidden;
  flex-shrink: 0;
}

.sub > span {
  display: block;
  width: 100%;
  flex: 0 0 auto;
  min-width: 0;
}

html:lang(zh-CN) .sub,
html:lang(zh-TW) .sub {
  text-indent: 2em;
  text-wrap: wrap;
  letter-spacing: 0.02em;
  padding-left: 0.82rem;
  padding-right: 0.82rem;
}

html:lang(en) .sub,
html:lang(es) .sub,
html:lang(fr) .sub,
html:lang(de) .sub,
html:lang(it) .sub {
  letter-spacing: 0.015em;
  text-wrap: wrap;
  overflow-wrap: break-word;
}

.host {
  display: none;
}

.actions {
  flex-shrink: 0;
  width: 100%;
  max-width: var(--copy-max);
  margin: 0 auto;
}

.cta {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  margin-top: 0;
  min-height: 2.75rem;
  padding: 0 0.85rem;
  border-radius: 0.75rem;
  text-decoration: none;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  border: 1px solid rgb(var(--ac) / 0.55);
  background: rgb(var(--ac) / 0.12);
  color: rgb(var(--text, var(--ng50)));
  transition:
    border-color 0.25s ease,
    background 0.25s ease,
    transform 0.2s ease;
}

.cta:hover {
  border-color: rgb(var(--ac));
  background: rgb(var(--ac) / 0.2);
  transform: translateY(-1px);
}

/* —— XIRE —— */
.card--xire {
  box-shadow: 0 0 72px 32px rgb(var(--ac) / 0.12);
}

.card--xire[data-xire-theme="indigo"] {
  --ac: 129 140 248;
  --ng50: 248 250 252;
  --ng400: 148 163 184;
  --ng700: 51 65 85;
  --ng950: 2 6 23;
  border: 1px solid rgb(var(--ng700) / 0.9);
  background: rgb(var(--ng950) / 0.72);
  color: rgb(var(--ng50));
}
/* ink：对齐 XIRE。窄屏纸灰 #FAFAFA + 墨字；宽屏墨底 #1C1B19 + 浅字。 */
.card--xire[data-xire-theme="ink"] {
  --ac: 28 27 25;
  --ng50: 28 25 23;
  --ng400: 120 113 108;
  --ng700: 214 211 209;
  --ng950: 250 250 250;
  border: 1px solid rgb(var(--ng700) / 0.9);
  background: rgb(var(--ng950) / 0.94);
  color: rgb(var(--ng50));
}
@media (min-width: 768px) {
  .card--xire[data-xire-theme="ink"] {
    --ac: 168 165 174;
    --ng50: 250 250 249;
    --ng400: 168 162 158;
    --ng700: 68 64 60;
    --ng950: 28 27 25;
    border: 1px solid rgb(var(--ng700) / 0.9);
    background: rgb(var(--ng950) / 0.88);
    color: rgb(var(--ng50));
  }
}
.card--xire[data-xire-theme="green"] {
  --ac: 52 211 153;
  --ng50: 250 250 250;
  --ng400: 161 161 170;
  --ng700: 6 95 70;
  --ng950: 2 44 34;
  border: 1px solid rgb(var(--ng700) / 0.75);
  background: rgb(var(--ng950) / 0.78);
  color: rgb(var(--ng50));
}

.card--xire .sub { color: rgb(var(--ng50) / 0.72); }

/* —— XISA —— */
.card--xisa {
  box-shadow: 0 0 72px 32px rgb(var(--ac) / 0.1);
}

.card--xisa[data-xisa-theme="black"] {
  --ac: 245 245 245;
  --ng50: 245 245 245;
  --ng400: 138 138 138;
  --ng700: 31 31 31;
  --ng950: 10 10 10;
  border: 1px solid rgb(var(--ng700) / 0.95);
  background: rgb(var(--ng950) / 0.82);
  color: rgb(var(--ng50));
}
.card--xisa[data-xisa-theme="white"] {
  --ac: 10 10 10;
  --ng50: 10 10 10;
  --ng400: 106 106 106;
  --ng700: 214 214 214;
  --ng950: 245 245 245;
  border: 1px solid rgb(var(--ng700) / 0.85);
  background: rgb(var(--ng950) / 0.94);
  color: rgb(var(--ng50));
}
.card--xisa[data-xisa-theme="gray"] {
  --ac: 245 245 245;
  --ng50: 245 245 245;
  --ng400: 160 160 160;
  --ng700: 63 63 63;
  --ng950: 46 46 46;
  border: 1px solid rgb(var(--ng700) / 0.9);
  background: rgb(var(--ng950) / 0.88);
  color: rgb(var(--ng50));
}

.card--xisa .sub { color: rgb(var(--ng50) / 0.7); }

/* —— XIVO —— */
.card--xivo {
  backdrop-filter: blur(10px);
  box-shadow:
    inset 0 1px 0 0 rgb(255 255 255 / 0.04),
    0 0 72px 32px rgb(var(--ac) / 0.11);
}

.card--xivo[data-xivo-theme="warm"] {
  --ac: 224 138 60;
  --ng50: 250 247 242;
  --ng400: 183 168 147;
  --ng600: 118 98 78;
  --ng900: 40 32 26;
  --ng950: 26 21 17;
}
.card--xivo[data-xivo-theme="olive"] {
  --ac: 56 148 108;
  --ng50: 244 248 246;
  --ng400: 124 144 134;
  --ng600: 72 88 80;
  --ng900: 22 36 30;
  --ng950: 12 22 18;
}
.card--xivo[data-xivo-theme="plum"] {
  --ac: 164 88 112;
  --ng50: 250 246 247;
  --ng400: 156 128 138;
  --ng600: 94 74 84;
  --ng900: 40 22 30;
  --ng950: 22 12 16;
}

.card--xivo {
  border: 1px solid rgb(var(--ng600) / 0.55);
  background: rgb(var(--ng900) / 0.55);
  color: rgb(var(--ng50));
}

.card--xivo .sub { color: rgb(var(--ng50) / 0.74); }

.foot {
  margin-top: auto;
  padding-top: 2.25rem;
  text-align: center;
}

.foot p {
  margin: 0;
  color: var(--house-muted);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
}

.foot-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.2rem 0;
  color: var(--house-muted);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
}

.foot-nav a {
  color: inherit;
  text-decoration: none;
  padding: 0.15rem 0.1rem;
}

.foot-nav a:hover,
.foot-nav a[aria-current="page"] {
  color: var(--house-fg);
}

.foot-sep {
  opacity: 0.5;
  user-select: none;
  margin-inline: 1.35rem;
}

.legal-doc {
  flex: 1;
  width: min(40rem, 100%);
  margin: 0 auto;
  padding: 1.65rem 0 1.25rem;
}

.legal-doc h1 {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.55rem;
  font-weight: 650;
  letter-spacing: -0.02em;
  line-height: 1.25;
  text-transform: none;
  text-align: left;
}

.legal-doc .legal-meta {
  margin: 0.55rem 0 1.2rem;
  color: var(--house-muted);
  font-size: 0.9rem;
}

.legal-doc h2 {
  font-size: 1.05rem;
  font-weight: 600;
  margin: 1.8rem 0 0.5rem;
}

.legal-doc p,
.legal-doc li {
  color: #b6bac2;
  line-height: 1.65;
  font-size: 0.98rem;
}

.legal-doc p {
  margin: 0 0 0.85rem;
}

.legal-doc ul {
  margin: 0.35rem 0 0.85rem;
  padding-left: 1.25rem;
}

.legal-doc a {
  color: #e6e8ee;
  text-decoration: underline;
  text-underline-offset: 0.16em;
}

.legal-doc a:hover {
  color: #fff;
}

.legal-doc hr {
  border: 0;
  border-top: 1px solid var(--house-line);
  margin: 2.4rem 0;
}

.legal-doc .legal-mail,
.legal-doc code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  letter-spacing: 0;
}

.legal-doc .signin-back {
  display: inline-block;
  margin-top: 1.5rem;
  color: var(--house-muted);
  font-size: 0.82rem;
  text-decoration: none;
}

.legal-doc .signin-back:hover {
  color: var(--house-fg);
}

@media (max-width: 900px) {
  .shell {
    padding-inline: max(
      0.75rem,
      env(safe-area-inset-left),
      env(safe-area-inset-right)
    );
  }
  .triptych {
    grid-template-columns: 1fr;
    justify-content: stretch;
    width: min(26rem, 100%);
    padding-top: 1.25rem;
    gap: 1.35rem;
  }
  .triptych-col {
    width: 100%;
  }
  .card {
    aspect-ratio: 3 / 4.62;
  }
  .card-preview {
    padding: 0.45rem 0.1rem 0.65rem;
  }

  .card-preview img,
  .card-preview-art {
    max-width: min(100%, 12.5rem);
  }

  .card-inner {
    --sub-font: 0.82rem;
    --copy-max: calc(22.5 * var(--sub-font));
  }
  .card-copy {
    padding: 0.7rem 0 0.85rem;
  }
  .sub {
    --sub-lines: 5;
    --sub-pad-top: 0.68rem;
    --sub-pad-bottom: 0.8rem;
    --sub-leading: 1.82;
    margin-top: 0.9rem;
    padding: var(--sub-pad-top) 1rem var(--sub-pad-bottom);
  }
}

@media (max-width: 520px) {
  .top {
    flex-wrap: wrap;
    row-gap: 0.55rem;
  }
  .house-header-tools {
    margin-left: auto;
  }
  .house-mark {
    letter-spacing: 0.18em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .cta,
  .card-logo,
  .house-tool-trigger {
    transition: none;
  }
  .cta:hover {
    transform: none;
  }
  .card-logo:hover {
    transform: none;
  }
}