/* =========================================================
   OD赛事通 / site.css
   赛场档案室 × 实时记分牌：深墨底 + 暖纸卡 + 蓝橙强调
   ========================================================= */

/* ---------- 1. Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 150px;
}

body,
h1, h2, h3, h4, h5,
p, figure, blockquote, dl, dd, ul, ol {
  margin: 0;
}

ul, ol { padding: 0; list-style: none; }

img, svg, video { display: block; max-width: 100%; height: auto; }

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
}

a { color: inherit; }

table { width: 100%; border-collapse: collapse; }

/* ---------- 2. Tokens ---------- */
:root {
  --od-ink: #0B0F14;
  --od-panel: #141B24;
  --od-panel-deep: #0F1620;
  --od-line: #1F2A36;
  --od-paper: #F2EDE4;
  --od-paper-line: #DCD3C2;
  --od-blue: #0057FF;
  --od-orange: #FF6B00;
  --od-green: #2E7D5B;
  --od-red: #D93A2B;
  --od-mute: #9AA6B2;
  --od-white: #E8EDF2;
  --od-ink-soft: #4A5158;

  --od-shell: 1220px;
  --od-r-lg: 30px;
  --od-r-md: 16px;
  --od-r-sm: 10px;

  --od-font-head: "Oswald", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --od-font-body: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --od-font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, "Courier New", monospace;

  --od-ease: cubic-bezier(.2, .7, .3, 1);
}

/* ---------- 3. Base ---------- */
body {
  min-height: 100vh;
  background-color: var(--od-ink);
  background-image:
    radial-gradient(780px 420px at 84% -8%, rgba(0, 87, 255, .20), transparent 68%),
    radial-gradient(560px 340px at -12% 10%, rgba(255, 107, 0, .12), transparent 72%),
    repeating-linear-gradient(90deg, rgba(31, 42, 54, .30) 0 1px, transparent 1px 148px);
  background-repeat: no-repeat, no-repeat, repeat;
  color: var(--od-white);
  font-family: var(--od-font-body);
  font-size: 17px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

p, li, dd, dt { word-break: break-word; }

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

:focus-visible {
  outline: 2px solid var(--od-orange);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ---------- 4. Layout ---------- */
.od-shell {
  width: 100%;
  max-width: var(--od-shell);
  margin-inline: auto;
  padding-inline: 22px;
}

.od-main {
  display: block;
  padding-top: 10px;
  padding-bottom: 40px;
}

.od-section {
  padding: 64px 0;
  border-top: 1px solid var(--od-line);
}

.od-section:first-of-type { border-top: 0; }

.od-section__head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-bottom: 32px;
}

.od-section__num {
  font-family: var(--od-font-mono);
  font-size: clamp(46px, 8vw, 92px);
  font-weight: 700;
  line-height: .86;
  letter-spacing: -.03em;
  color: rgba(0, 87, 255, .38);
}

@supports (-webkit-text-stroke: 1px #000) {
  .od-section__num {
    color: transparent;
    -webkit-text-stroke: 1px var(--od-blue);
  }
}

@media (min-width: 900px) {
  .od-section__head {
    grid-template-columns: 210px minmax(0, 1fr);
    gap: 30px;
    align-items: start;
  }
}

/* ---------- 5. Typography ---------- */
.od-kicker {
  display: block;
  margin-bottom: 12px;
  font-family: var(--od-font-mono);
  font-size: 12.5px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--od-orange);
}

.od-h1 {
  font-family: var(--od-font-head);
  font-weight: 700;
  font-size: clamp(38px, 7vw, 74px);
  line-height: 1.06;
  letter-spacing: -.015em;
}

.od-h2 {
  font-family: var(--od-font-head);
  font-weight: 700;
  font-size: clamp(25px, 3.4vw, 38px);
  line-height: 1.2;
}

.od-h3 {
  font-family: var(--od-font-head);
  font-weight: 700;
  font-size: 21px;
  line-height: 1.35;
}

.od-lede {
  max-width: 64ch;
  font-size: 17.5px;
  line-height: 1.85;
  color: var(--od-mute);
}

.od-meta {
  font-family: var(--od-font-mono);
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--od-mute);
}

.od-mono { font-family: var(--od-font-mono); }

.od-note {
  padding-left: 14px;
  border-left: 2px solid var(--od-blue);
  font-size: 15px;
  line-height: 1.8;
  color: var(--od-mute);
}

.od-rule {
  height: 1px;
  margin: 36px 0;
  border: 0;
  background: var(--od-line);
}

/* ---------- 6. Header / floating capsule island ---------- */
.od-skip {
  position: fixed;
  top: 12px;
  left: 18px;
  z-index: 200;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--od-orange);
  color: var(--od-ink);
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  transform: translateY(-240%);
  transition: transform .2s var(--od-ease);
}

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

.od-header {
  position: sticky;
  top: 0;
  z-index: 90;
  padding: 12px 0 10px;
  background: linear-gradient(180deg, rgba(11, 15, 20, .97) 0%, rgba(11, 15, 20, .80) 68%, rgba(11, 15, 20, 0) 100%);
}

.od-island__inner {
  padding: 10px 16px 12px;
  border: 1px solid var(--od-line);
  border-radius: var(--od-r-lg);
  background: rgba(15, 22, 32, .95);
  box-shadow: 0 22px 46px -26px rgba(0, 0, 0, .95);
  transition: padding .25s var(--od-ease), border-color .25s var(--od-ease);
}

/* utility row: status lamp + batch rail */
.od-island__util {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 16px;
  padding: 2px 2px 9px;
  border-bottom: 1px solid var(--od-line);
  font-family: var(--od-font-mono);
  font-size: 12.5px;
  letter-spacing: .08em;
}

.od-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--od-mute);
}

.od-status__lamp {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--od-green);
  box-shadow: 0 0 0 3px rgba(46, 125, 91, .22);
  animation: odPulse 2.8s ease-in-out infinite;
}

@keyframes odPulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(46, 125, 91, .24); }
  50% { box-shadow: 0 0 0 8px rgba(46, 125, 91, .05); }
}

.od-status__label { color: var(--od-mute); }

.od-status__value {
  color: #8FD7B6;
  font-weight: 700;
}

.od-batch {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.od-batch__label { color: var(--od-mute); }

.od-batch__chip {
  padding: 5px 11px;
  border: 1px solid var(--od-line);
  border-radius: 999px;
  color: var(--od-mute);
  font-family: var(--od-font-mono);
  font-size: 12.5px;
  letter-spacing: .08em;
  cursor: pointer;
  transition: color .2s var(--od-ease), background-color .2s var(--od-ease), border-color .2s var(--od-ease);
}

.od-batch__chip:hover {
  color: var(--od-white);
  border-color: var(--od-blue);
}

.od-batch__chip[aria-pressed="true"] {
  background: var(--od-orange);
  border-color: var(--od-orange);
  color: var(--od-ink);
  font-weight: 700;
}

.od-batch__reset {
  color: var(--od-mute);
  font-family: var(--od-font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
}

.od-batch__reset:hover { color: var(--od-white); }

.od-batch__count {
  color: var(--od-orange);
  font-size: 12px;
  letter-spacing: .06em;
}

/* bar: brand + nav + actions */
.od-island__bar {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  padding-top: 10px;
}

.od-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  text-decoration: none;
}

.od-brand__mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: var(--od-blue);
  color: #fff;
  font-family: var(--od-font-mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .06em;
}

.od-brand__name {
  font-family: var(--od-font-head);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: .02em;
  color: var(--od-white);
}

.od-nav { display: flex; }

.od-nav__list {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}

.od-nav__link {
  display: block;
  padding: 10px 15px;
  border: 1px solid transparent;
  border-radius: 999px;
  color: var(--od-mute);
  font-size: 15px;
  line-height: 1;
  text-decoration: none;
  transition: color .2s var(--od-ease), background-color .2s var(--od-ease), border-color .2s var(--od-ease);
}

.od-nav__link:hover {
  color: var(--od-white);
  background: #1B242F;
  border-color: var(--od-line);
}

.od-nav__link[aria-current="page"] {
  background: var(--od-blue);
  border-color: var(--od-blue);
  color: #fff;
  font-weight: 700;
}

.od-island__acts {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
}

.od-burger {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  border: 1px solid var(--od-line);
  border-radius: 14px;
  background: var(--od-panel);
  cursor: pointer;
}

.od-burger__bar {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--od-white);
  transition: transform .22s var(--od-ease), opacity .22s var(--od-ease);
}

.od-island[data-open="true"] .od-burger__bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.od-island[data-open="true"] .od-burger__bar:nth-child(2) { opacity: 0; }
.od-island[data-open="true"] .od-burger__bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* collapsed state on scroll */
.od-island[data-collapsed="true"] .od-island__inner {
  padding: 6px 14px 9px;
  border-color: rgba(31, 42, 54, .8);
}

.od-island[data-collapsed="true"] .od-island__util {
  padding-bottom: 5px;
  border-color: transparent;
}

.od-island[data-collapsed="true"] .od-status__label,
.od-island[data-collapsed="true"] .od-batch__label { display: none; }

.od-island[data-collapsed="true"] .od-brand__mark { width: 32px; height: 32px; border-radius: 10px; font-size: 13px; }
.od-island[data-collapsed="true"] .od-brand__name { font-size: 18px; }

/* ---------- 7. Buttons ---------- */
.od-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5em;
  padding: 14px 24px;
  border: 1px solid var(--od-line);
  border-radius: 999px;
  background-color: var(--od-panel);
  background-image: linear-gradient(90deg, var(--od-blue) 0 50%, rgba(0, 0, 0, 0) 50% 100%);
  background-size: 200% 100%;
  background-position: 100% 0;
  color: var(--od-white);
  font-family: var(--od-font-head);
  font-weight: 700;
  font-size: 15px;
  line-height: 1;
  letter-spacing: .02em;
  text-decoration: none;
  cursor: pointer;
  transition: background-position .3s var(--od-ease), color .25s var(--od-ease), border-color .25s var(--od-ease), transform .2s var(--od-ease);
}

.od-btn:hover,
.od-btn:focus-visible {
  background-position: 0 0;
  border-color: var(--od-blue);
  color: #fff;
}

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

.od-btn--signal {
  background-color: var(--od-orange);
  background-image: linear-gradient(90deg, #FF8A2B 0 50%, rgba(0, 0, 0, 0) 50% 100%);
  border-color: var(--od-orange);
  color: var(--od-ink);
}

.od-btn--signal:hover,
.od-btn--signal:focus-visible {
  border-color: #FF8A2B;
  color: var(--od-ink);
}

.od-btn--blue {
  background-color: var(--od-blue);
  background-image: linear-gradient(90deg, #2B74FF 0 50%, rgba(0, 0, 0, 0) 50% 100%);
  border-color: var(--od-blue);
  color: #fff;
}

.od-btn--blue:hover,
.od-btn--blue:focus-visible { border-color: #2B74FF; }

.od-btn--ghost {
  background-color: transparent;
  background-image: linear-gradient(90deg, rgba(0, 87, 255, .22) 0 50%, rgba(0, 0, 0, 0) 50% 100%);
  border-color: var(--od-line);
  color: var(--od-mute);
}

.od-btn--ghost:hover,
.od-btn--ghost:focus-visible { color: var(--od-white); }

.od-btn--sm {
  padding: 11px 18px;
  font-size: 13.5px;
}

.od-btn--block {
  width: 100%;
  justify-content: flex-start;
}

/* ---------- 8. Breadcrumbs ---------- */
.od-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 22px;
  font-family: var(--od-font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--od-mute);
}

.od-crumbs__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.od-crumbs__item + .od-crumbs__item::before {
  content: "/";
  color: #3A4756;
}

.od-crumbs a {
  color: var(--od-mute);
  text-decoration: none;
  transition: color .2s var(--od-ease);
}

.od-crumbs a:hover { color: var(--od-white); }

/* ---------- 9. Grid ---------- */
.od-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 640px) {
  .od-grid--2,
  .od-grid--3,
  .od-grid--asym { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 1000px) {
  .od-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

  .od-grid--asym {
    grid-template-columns: 1.4fr 1fr 1fr;
    align-items: start;
  }

  .od-grid--asym > :first-child { grid-row: span 2; }
}

/* ---------- 10. Cards ---------- */
.od-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px;
  border: 1px solid var(--od-line);
  border-radius: var(--od-r-md);
  background: var(--od-panel);
  transition: border-color .22s var(--od-ease), transform .22s var(--od-ease);
}

.od-card:hover {
  border-color: #2C3A4A;
  transform: translateY(-2px);
}

.od-card--paper {
  background: var(--od-paper);
  border-color: var(--od-paper-line);
  color: #14181D;
}

.od-card__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.od-card__num {
  font-family: var(--od-font-mono);
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--od-blue);
}

.od-card--paper .od-card__num { color: #0044CC; }

.od-card__title {
  font-family: var(--od-font-head);
  font-weight: 700;
  font-size: 21px;
  line-height: 1.35;
}

.od-card__text {
  font-size: 16px;
  line-height: 1.75;
  color: var(--od-mute);
}

.od-card--paper .od-card__text,
.od-card--paper .od-card__meta { color: var(--od-ink-soft); }

.od-card__meta {
  font-family: var(--od-font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--od-mute);
}

.od-card__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px dashed var(--od-line);
}

.od-card--paper .od-card__foot { border-top-color: var(--od-paper-line); }

/* batch highlight protocol */
[data-match="true"] {
  outline: 2px solid var(--od-orange);
  outline-offset: 3px;
  border-color: var(--od-orange);
}

/* ---------- 11. Tags ---------- */
.od-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border: 1px solid var(--od-line);
  border-radius: 999px;
  background: rgba(255, 255, 255, .02);
  color: var(--od-mute);
  font-family: var(--od-font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  white-space: nowrap;
}

.od-tag--ok {
  color: #8FD7B6;
  border-color: rgba(46, 125, 91, .7);
  background: rgba(46, 125, 91, .14);
}

.od-tag--warn {
  color: #F3A09A;
  border-color: rgba(217, 58, 43, .7);
  background: rgba(217, 58, 43, .14);
}

.od-tag--blue {
  color: #93B4FF;
  border-color: rgba(0, 87, 255, .65);
  background: rgba(0, 87, 255, .16);
}

.od-tag--orange {
  color: #FFB37A;
  border-color: rgba(255, 107, 0, .65);
  background: rgba(255, 107, 0, .14);
}

.od-tag--mute { color: var(--od-mute); }

/* ---------- 12. Filters ---------- */
.od-filters {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 7px;
  margin-bottom: 22px;
}

.od-filter {
  padding: 9px 16px;
  border: 1px solid var(--od-line);
  border-radius: 999px;
  background: transparent;
  color: var(--od-mute);
  font-family: var(--od-font-mono);
  font-size: 12.5px;
  letter-spacing: .08em;
  cursor: pointer;
  transition: color .2s var(--od-ease), background-color .2s var(--od-ease), border-color .2s var(--od-ease);
}

.od-filter:hover {
  color: var(--od-white);
  border-color: var(--od-blue);
}

.od-filter[aria-pressed="true"] {
  background: var(--od-blue);
  border-color: var(--od-blue);
  color: #fff;
  font-weight: 700;
}

/* ---------- 13. Fold ---------- */
.od-fold {
  border: 1px solid var(--od-line);
  border-radius: var(--od-r-md);
  background: var(--od-panel);
  padding: 20px 22px;
}

.od-fold__body {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  font-size: 16px;
  line-height: 1.8;
  color: var(--od-mute);
}

.od-fold[data-open="true"] .od-fold__body {
  display: block;
  overflow: visible;
}

.od-fold__more {
  margin-top: 12px;
  padding: 0;
  color: var(--od-blue);
  font-family: var(--od-font-mono);
  font-size: 12.5px;
  letter-spacing: .08em;
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
}

.od-fold__more:hover { color: var(--od-orange); }

/* ---------- 14. Skill-tree path ---------- */
.od-path {
  position: relative;
  display: grid;
  gap: 16px;
  padding-left: 26px;
}

.od-path::before {
  content: "";
  position: absolute;
  top: 10px;
  bottom: 10px;
  left: 7px;
  width: 2px;
  background: linear-gradient(180deg, var(--od-blue), var(--od-orange));
}

.od-path__step {
  position: relative;
  padding: 16px 18px;
  border: 1px solid var(--od-line);
  border-radius: var(--od-r-md);
  background: var(--od-panel);
}

.od-path__dot {
  position: absolute;
  top: 22px;
  left: -26px;
  width: 14px;
  height: 14px;
  border: 2px solid var(--od-blue);
  border-radius: 4px;
  background: var(--od-ink);
}

.od-path__step:nth-child(even) .od-path__dot { border-color: var(--od-orange); }

.od-path__label {
  display: block;
  font-family: var(--od-font-head);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.35;
}

.od-path__note {
  font-size: 15px;
  line-height: 1.75;
  color: var(--od-mute);
}

/* ---------- 15. Media shells (page stage injects <img>) ---------- */
.od-media {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border: 1px solid var(--od-line);
  border-radius: var(--od-r-md);
  background-color: var(--od-panel-deep);
  background-image:
    repeating-linear-gradient(135deg, rgba(154, 166, 178, .07) 0 1px, transparent 1px 9px),
    linear-gradient(135deg, #1B2733, #0F151C);
}

.od-media > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.od-media--wide { aspect-ratio: 21 / 9; }
.od-media--square { aspect-ratio: 1 / 1; }
.od-media--tall { aspect-ratio: 3 / 4; }

.od-media__tag {
  position: absolute;
  left: 12px;
  bottom: 12px;
  padding: 5px 11px;
  border-radius: 999px;
  background: rgba(11, 15, 20, .82);
  color: var(--od-white);
  font-family: var(--od-font-mono);
  font-size: 12px;
  letter-spacing: .08em;
}

.od-media__num {
  position: absolute;
  top: 10px;
  right: 12px;
  color: rgba(232, 237, 242, .58);
  font-family: var(--od-font-mono);
  font-size: 13px;
  letter-spacing: .12em;
}

/* ---------- 16. Stat ---------- */
.od-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 18px 20px;
  border: 1px solid var(--od-line);
  border-left: 3px solid var(--od-blue);
  border-radius: var(--od-r-sm);
  background: var(--od-panel);
}

.od-stat__num {
  font-family: var(--od-font-mono);
  font-weight: 700;
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.05;
  color: var(--od-white);
}

.od-stat__label {
  font-family: var(--od-font-mono);
  font-size: 12.5px;
  letter-spacing: .1em;
  color: var(--od-mute);
}

/* ---------- 17. Footer ---------- */
.od-footer {
  margin-top: 84px;
  padding: 62px 0 34px;
  border-top: 1px solid var(--od-line);
  background:
    linear-gradient(180deg, rgba(20, 27, 36, .55), rgba(11, 15, 20, .98) 72%),
    var(--od-ink);
}

.od-footer__top {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  padding-bottom: 34px;
  border-bottom: 1px solid var(--od-line);
}

.od-footer__brand {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.od-footer__tagline {
  max-width: 34ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--od-mute);
}

.od-footer__domain {
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--od-blue);
}

.od-footer__nav {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  counter-reset: odcol;
}

.od-footer__col { counter-increment: odcol; }

.od-footer__col-title {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 14px;
  font-family: var(--od-font-head);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: .06em;
  color: var(--od-white);
}

.od-footer__col-title::before {
  content: counter(odcol, decimal-leading-zero);
  font-family: var(--od-font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--od-blue);
}

.od-footer__list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.od-footer__link {
  display: inline-block;
  color: var(--od-mute);
  font-size: 15px;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--od-ease), border-color .2s var(--od-ease);
}

.od-footer__link:hover {
  color: var(--od-white);
  border-bottom-color: var(--od-orange);
}

.od-footer__contact {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 24px 0;
  border-bottom: 1px solid var(--od-line);
}

.od-footer__contact-line {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  font-size: 14.5px;
  color: var(--od-white);
}

.od-footer__contact-key {
  min-width: 74px;
  font-family: var(--od-font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--od-mute);
}

.od-footer__legal {
  display: grid;
  gap: 8px;
  padding-top: 22px;
}

.od-footer__legal-line {
  font-size: 13px;
  line-height: 1.8;
  color: var(--od-mute);
}

/* ---------- 18. Utilities ---------- */
.od-visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

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

.od-js [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .3s var(--od-ease), transform .3s var(--od-ease);
}

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

/* ---------- 19. Breakpoints ---------- */
@media (min-width: 700px) {
  .od-footer__nav { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .od-footer__contact { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (min-width: 900px) {
  .od-footer__top {
    grid-template-columns: 1.05fr 2fr;
    gap: 48px;
  }
}

@media (max-width: 900px) {
  body { font-size: 16.5px; }

  .od-island__bar { flex-wrap: wrap; }

  .od-nav {
    display: none;
    position: absolute;
    top: calc(100% + 12px);
    left: 0;
    right: 0;
    z-index: 5;
    padding: 10px;
    border: 1px solid var(--od-line);
    border-radius: 22px;
    background: var(--od-panel-deep);
    box-shadow: 0 32px 60px -30px rgba(0, 0, 0, .95);
  }

  .od-island[data-open="true"] .od-nav { display: block; }

  .od-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }

  .od-nav__link {
    padding: 14px 16px;
    border-radius: 14px;
    font-size: 16px;
  }

  .od-burger { display: flex; }

  .od-island__util { font-size: 11.5px; }
}

@media (max-width: 520px) {
  .od-shell { padding-inline: 16px; }
  .od-island__inner { padding: 8px 12px 10px; border-radius: 22px; }
  .od-brand__mark { width: 34px; height: 34px; font-size: 13px; }
  .od-brand__name { font-size: 18px; }
  .od-island__acts .od-btn { padding: 10px 14px; font-size: 12.5px; }
  .od-batch__chip { padding: 4px 9px; font-size: 11.5px; }
  .od-footer { padding-top: 46px; }
}

/* ---------- 20. Motion preferences ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }

  .od-status__lamp { animation: none; }

  .od-js [data-reveal] {
    opacity: 1;
    transform: none;
  }

  .od-card:hover { transform: none; }
}