/* ============================================
   LEYU Mobile — Shared Site CSS
   ============================================ */

:root {
  --color-bg: #0B1B2B;
  --color-panel: #12293C;
  --color-accent: #FF6B2C;
  --color-gold: #FFC247;
  --color-border: #6E7F80;
  --color-success: #4A7055;
  --color-warn: #C96F4A;
  --color-ink: #EAF0F5;
  --color-ink-dim: #9DB3C5;
  --color-ink-dark: #0B1B2B;
  --font-title: 'Archivo', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-body: 'Inter', 'HarmonyOS Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-mono: 'Roboto Mono', 'JetBrains Mono', ui-monospace, 'SFMono-Regular', Consolas, monospace;
  --font-index: 'IBM Plex Mono', ui-monospace, 'SFMono-Regular', Consolas, monospace;
  --container: 1200px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--color-bg);
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

main {
  display: block;
  min-height: 70vh;
}

h1, h2, h3, h4 {
  margin: 0 0 0.55em;
  font-family: var(--font-title);
  font-weight: 800;
  color: var(--color-ink);
  line-height: 1.15;
}

p {
  margin: 0 0 1em;
}

a {
  color: var(--color-accent);
}

img {
  display: block;
  max-width: 100%;
}

ul, ol {
  padding: 0;
  margin: 0;
}

button {
  font: inherit;
  color: inherit;
}

::selection {
  background: var(--color-accent);
  color: #fff;
}

:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 3px;
}

/* ===== Layout ===== */

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 20px;
}

.section {
  padding-block: clamp(60px, 9vw, 110px);
}

.section--light {
  background: var(--color-ink);
  color: var(--color-ink-dark);
}

.section--light h1,
.section--light h2,
.section--light h3,
.section--light h4 {
  color: var(--color-ink-dark);
}

.section-head {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 36px;
}

.section-kicker {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-index);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.section-kicker::before {
  content: "";
  display: inline-block;
  width: 22px;
  height: 2px;
  background: var(--color-accent);
}

.section-title {
  font-size: clamp(32px, 6vw, 64px);
  font-weight: 900;
  line-height: 0.98;
  letter-spacing: -0.01em;
}

.section-lead {
  max-width: 58ch;
  color: var(--color-ink-dim);
  font-size: 15px;
}

.section--light .section-lead {
  color: rgba(11, 27, 43, 0.72);
}

@media (min-width: 768px) {
  .section-head {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
  }

  .section-head .section-lead {
    text-align: right;
  }
}

/* ===== Grid ===== */

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 20px;
}

.grid__item {
  grid-column: span 12;
}

@media (min-width: 641px) {
  .grid__item {
    grid-column: span 6;
  }
}

@media (min-width: 1025px) {
  .grid__item {
    grid-column: span 4;
  }

  .grid__item--wide {
    grid-column: span 8;
  }

  .grid__item--full {
    grid-column: span 12;
  }
}

/* ===== Panels ===== */

.panel {
  position: relative;
  background: linear-gradient(180deg, rgba(18, 41, 60, 0.65), rgba(18, 41, 60, 0.95));
  border: 1px solid rgba(110, 127, 128, 0.24);
  border-radius: 2px;
  padding: 24px;
}

.panel::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 14px;
  height: 14px;
  border-top: 3px solid var(--color-accent);
  border-left: 3px solid var(--color-accent);
}

.panel--accent {
  border-color: rgba(255, 107, 44, 0.45);
  background: linear-gradient(180deg, rgba(255, 107, 44, 0.09), rgba(18, 41, 60, 0.94) 55%);
}

.dashboard {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: rgba(110, 127, 128, 0.22);
  border: 1px solid rgba(110, 127, 128, 0.22);
}

.dashboard__cell {
  background: var(--color-panel);
  padding: 20px;
}

@media (min-width: 768px) {
  .dashboard {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ===== Buttons ===== */

.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 18px;
  border: 1px solid transparent;
  border-radius: 0;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  color: var(--color-ink);
  background: transparent;
  cursor: pointer;
  transition: background 0.16s ease, color 0.16s ease, border-color 0.16s ease, box-shadow 0.16s ease, transform 0.16s ease;
}

.btn::after {
  content: "";
  position: absolute;
  right: -1px;
  bottom: -1px;
  width: 10px;
  height: 10px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  opacity: 0.7;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn--primary {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
  box-shadow: 4px 4px 0 rgba(255, 107, 44, 0.2);
}

.btn--primary:hover {
  background: #ff7d45;
  border-color: #ff7d45;
  box-shadow: 4px 6px 14px rgba(255, 107, 44, 0.28);
}

.btn--ghost {
  border-color: rgba(110, 127, 128, 0.55);
  color: var(--color-ink);
}

.btn--ghost:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn--gold {
  background: var(--color-gold);
  border-color: var(--color-gold);
  color: var(--color-ink-dark);
  box-shadow: 4px 4px 0 rgba(255, 194, 71, 0.18);
}

/* ===== Tags / Index ===== */

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border: 1px solid rgba(110, 127, 128, 0.5);
  border-radius: 2px;
  font-family: var(--font-index);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-ink-dim);
}

.tag--accent {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.tag--gold {
  border-color: var(--color-gold);
  color: var(--color-gold);
}

/* ===== Metrics ===== */

.metric {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.metric__value {
  font-family: var(--font-mono);
  font-size: clamp(28px, 4vw, 46px);
  font-weight: 700;
  line-height: 1;
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
}

.metric__label {
  font-family: var(--font-index);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-ink-dim);
}

/* ===== Status Dot ===== */

.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-border);
  flex: 0 0 auto;
}

.status-dot[data-status="live"] {
  background: var(--color-warn);
  box-shadow: 0 0 0 3px rgba(201, 111, 74, 0.25);
}

.status-dot[data-status="updated"] {
  background: var(--color-success);
  box-shadow: 0 0 0 3px rgba(74, 112, 85, 0.25);
}

/* ===== Divider / Note ===== */

.divider {
  height: 1px;
  border: 0;
  margin: 40px 0;
  background: linear-gradient(90deg, rgba(110, 127, 128, 0.6), rgba(110, 127, 128, 0));
}

.note {
  font-family: var(--font-index);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--color-ink-dim);
}

/* ===== Breadcrumb ===== */

.breadcrumb {
  margin-bottom: 24px;
}

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  font-family: var(--font-index);
  font-size: 12px;
}

.breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-inline-end: 8px;
  color: var(--color-border);
}

.breadcrumb__link {
  color: var(--color-ink-dim);
  text-decoration: none;
}

.breadcrumb__link:hover {
  color: var(--color-accent);
}

.breadcrumb__current {
  color: var(--color-accent);
}

/* ===== Filter ===== */

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border: 1px solid rgba(110, 127, 128, 0.4);
  border-radius: 999px;
  background: transparent;
  color: var(--color-ink-dim);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.4;
  cursor: pointer;
  transition: border-color 0.16s ease, color 0.16s ease, background 0.16s ease;
}

.filter-btn:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.filter-btn[aria-pressed="true"] {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}

.is-hidden {
  display: none !important;
}

/* ===== Table ===== */

.table-frame {
  overflow-x: auto;
  border: 1px solid rgba(110, 127, 128, 0.22);
  background: var(--color-panel);
}

.table-frame table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
}

.table-frame th,
.table-frame td {
  padding: 12px 16px;
  border-bottom: 1px solid rgba(110, 127, 128, 0.18);
  text-align: left;
  font-size: 14px;
}

.table-frame thead th {
  font-family: var(--font-index);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-ink-dim);
}

.table-frame td {
  color: var(--color-ink);
  font-variant-numeric: tabular-nums;
}

.table-frame tbody tr:hover {
  background: rgba(255, 107, 44, 0.06);
}

/* ===== Media Frame ===== */

.media-frame {
  position: relative;
  aspect-ratio: 16 / 10;
  min-height: 180px;
  overflow: hidden;
  border: 1px solid rgba(110, 127, 128, 0.26);
  border-radius: 2px;
  background: linear-gradient(135deg, #0E2134, #12293C 55%, #101D2A);
}

.media-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(116deg, transparent 0 16px, rgba(234, 240, 245, 0.04) 16px 17px),
    repeating-linear-gradient(26deg, transparent 0 32px, rgba(234, 240, 245, 0.03) 32px 33px);
}

.media-frame::after {
  content: "";
  position: absolute;
  left: 16px;
  top: 16px;
  width: 48px;
  height: 2px;
  background: var(--color-accent);
  box-shadow: 0 10px 0 rgba(255, 107, 44, 0.3);
}

.media-frame__label {
  position: absolute;
  right: 12px;
  bottom: 10px;
  z-index: 1;
  font-family: var(--font-index);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(110, 127, 128, 0.85);
}

/* ===== Progress Bar ===== */

.progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1500;
  width: 100%;
  height: 3px;
  pointer-events: none;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--color-accent), var(--color-gold));
  transition: transform 60ms linear;
}

/* ===== Skip Link ===== */

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 2000;
  padding: 10px 16px;
  background: var(--color-gold);
  color: var(--color-ink-dark);
  font-weight: 700;
  text-decoration: none;
  border-radius: 2px;
  transform: translateY(-220%);
  transition: transform 180ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

/* ===== Header ===== */

.site-header {
  position: sticky;
  top: 12px;
  z-index: 1000;
  padding-inline: 12px;
  pointer-events: none;
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: 18px;
  max-width: 1240px;
  margin-inline: auto;
  padding: 8px 10px 8px 20px;
  background: rgba(11, 27, 43, 0.84);
  border: 1px solid rgba(110, 127, 128, 0.28);
  border-radius: 999px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(234, 240, 245, 0.04);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  pointer-events: auto;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}

.site-brand__mark {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  background: var(--color-accent);
  color: #fff;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: 15px;
  border-radius: 2px;
}

.site-brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.site-brand__name {
  font-family: var(--font-title);
  font-size: 18px;
  font-weight: 900;
  letter-spacing: 0.02em;
  color: var(--color-ink);
  white-space: nowrap;
}

.site-brand__accent {
  color: var(--color-accent);
}

.site-brand__slogan {
  font-family: var(--font-index);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-ink-dim);
  white-space: nowrap;
}

.site-header__live {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 11px;
  border: 1px solid rgba(201, 111, 74, 0.45);
  border-radius: 999px;
  background: rgba(201, 111, 74, 0.08);
  font-family: var(--font-index);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-ink);
  text-decoration: none;
}

.site-header__live:hover {
  border-color: var(--color-warn);
  background: rgba(201, 111, 74, 0.16);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-inline-start: auto;
}

.site-nav__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 12px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-ink-dim);
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.16s ease, color 0.16s ease;
}

.site-nav__link:hover {
  background: rgba(255, 107, 44, 0.12);
  color: var(--color-ink);
}

.site-nav__link[aria-current="page"] {
  background: var(--color-accent);
  color: #fff;
}

.site-nav__index {
  font-family: var(--font-index);
  font-size: 10px;
  opacity: 0.65;
}

.site-nav__link[aria-current="page"] .site-nav__index {
  opacity: 0.9;
}

.site-header__cta {
  flex-shrink: 0;
  margin-inline-start: 4px;
  padding: 9px 16px;
  font-size: 13px;
  white-space: nowrap;
}

.site-header__toggle {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  width: 40px;
  height: 40px;
  padding: 8px;
  background: transparent;
  border: 1px solid rgba(110, 127, 128, 0.4);
  border-radius: 999px;
  cursor: pointer;
  flex-shrink: 0;
}

.site-header__toggle-line {
  display: block;
  width: 16px;
  height: 2px;
  border-radius: 1px;
  background: var(--color-ink);
  transition: transform 180ms ease, opacity 180ms ease;
}

.site-header__toggle.is-active .site-header__toggle-line:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.site-header__toggle.is-active .site-header__toggle-line:nth-child(2) {
  opacity: 0;
}

.site-header__toggle.is-active .site-header__toggle-line:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* ===== Footer ===== */

.site-footer {
  position: relative;
  background: #071520;
  border-top: 1px solid rgba(110, 127, 128, 0.2);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent) 0 140px, var(--color-gold) 140px 200px, transparent 200px);
}

.site-footer__top {
  padding: 56px 0 40px;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.2fr;
  gap: 48px;
}

.site-footer__brand-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.site-footer__mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  background: var(--color-accent);
  color: #fff;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: 14px;
  border-radius: 2px;
}

.site-footer__name {
  font-family: var(--font-title);
  font-size: 20px;
  font-weight: 900;
  color: var(--color-ink);
}

.site-footer__slogan {
  font-family: var(--font-index);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-ink-dim);
  margin: 14px 0 18px;
}

.site-footer__about {
  max-width: 42ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-ink-dim);
}

.site-footer__trust {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-top: 18px;
  padding: 12px 14px;
  border: 1px dashed rgba(110, 127, 128, 0.35);
  background: rgba(18, 41, 60, 0.35);
  font-size: 12px;
  line-height: 1.55;
  color: var(--color-ink-dim);
}

.site-footer__col-title {
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(110, 127, 128, 0.25);
  font-family: var(--font-index);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.site-footer__col-title::before {
  content: "/ ";
  color: var(--color-accent);
}

.site-footer__links,
.site-footer__contact {
  display: grid;
  gap: 10px;
  list-style: none;
}

.site-footer__link {
  font-size: 14px;
  color: var(--color-ink-dim);
  text-decoration: none;
  transition: color 0.16s ease, padding-left 0.16s ease;
}

.site-footer__link:hover {
  color: var(--color-accent);
  padding-left: 4px;
}

.site-footer__contact-line {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 14px;
  color: var(--color-ink);
}

.site-footer__contact-label {
  font-family: var(--font-index);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-border);
}

.site-footer__contact-value {
  word-break: break-all;
  color: var(--color-ink-dim);
}

.site-footer__bar {
  border-top: 1px solid rgba(110, 127, 128, 0.2);
  background: rgba(0, 0, 0, 0.25);
}

.site-footer__bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-block: 18px;
  font-family: var(--font-index);
  font-size: 12px;
  color: var(--color-ink-dim);
}

.site-footer__icp,
.site-footer__note {
  margin: 0;
}

.site-footer__note {
  text-align: right;
}

/* ===== Back to Top ===== */

.back-to-top {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 900;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 10px 12px;
  border: 1px solid rgba(255, 107, 44, 0.5);
  border-radius: 2px;
  background: rgba(11, 27, 43, 0.88);
  color: var(--color-accent);
  font-size: 12px;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.back-to-top[aria-hidden="true"] {
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
}

.back-to-top__icon {
  display: block;
  font-size: 18px;
  line-height: 1;
}

.back-to-top__label {
  font-family: var(--font-index);
  font-size: 10px;
  letter-spacing: 0.08em;
}

/* ===== Reveal ===== */

html.js [data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
  will-change: opacity, transform;
}

html.js [data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}

/* ===== Responsive ===== */

@media (max-width: 1023px) {
  .site-header__inner {
    flex-wrap: wrap;
    gap: 12px;
    padding: 10px 12px;
    border-radius: 18px;
  }

  .site-brand {
    margin-inline-end: auto;
  }

  .site-header__live {
    display: none;
  }

  .site-header__toggle {
    display: inline-flex;
  }

  .site-nav {
    order: 5;
    flex-basis: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    margin-inline-start: 0;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    border-top: 1px solid transparent;
    transition: max-height 0.28s ease, opacity 0.18s ease, border-color 0.18s ease;
  }

  .site-nav[data-open] {
    max-height: 560px;
    opacity: 1;
    margin-top: 2px;
    padding-top: 10px;
    border-top-color: rgba(110, 127, 128, 0.3);
  }

  .site-nav__link {
    justify-content: space-between;
    border-radius: 6px;
  }

  .site-header__cta {
    margin-inline-start: auto;
  }

  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}

@media (max-width: 640px) {
  .container {
    padding-inline: 16px;
  }

  .site-header {
    top: 8px;
    padding-inline: 8px;
  }

  .site-brand__mark {
    width: 34px;
    height: 34px;
    font-size: 13px;
  }

  .site-brand__slogan {
    display: none;
  }

  .site-brand__name {
    font-size: 16px;
  }

  .site-header__cta {
    padding: 9px 12px;
    font-size: 13px;
  }

  .site-header__toggle {
    width: 38px;
    height: 38px;
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .site-footer__bar-inner {
    flex-direction: column;
    text-align: center;
  }

  .site-footer__note {
    text-align: center;
  }
}

/* ===== Reduced Motion ===== */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0ms !important;
    scroll-behavior: auto !important;
  }

  .progress-bar {
    transition: none;
  }

  html.js [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
  }
}