/* ============ RESET & VARIABLES ============ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --color-primary: #0A1E33;
  --color-accent: #FF4D1C;
  --color-accent-hover: #FF6A3D;
  --color-indigo: #4A3D8F;
  --color-wine: #8B2E3B;
  --color-silver: #C9D1D9;
  --color-white: #FFFFFF;
  --color-panel: #1B3B4D;
  --color-light: #E5E7EB;

  --font-head: 'Oswald', 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
  --font-body: 'Noto Sans SC', 'Source Han Sans', 'Microsoft YaHei', sans-serif;
  --font-num: 'DIN Alternate', 'Oswald', 'Noto Sans SC', sans-serif;

  --container: 1280px;
  --gutter: 24px;
  --radius: 4px;
  --header-h: 68px;
  --ribbon-h: 44px;
  --header-offset: 118px;
  --transition: .25s cubic-bezier(.4, 0, .2, 1);
  --shadow-card: 0 8px 24px rgba(0, 0, 0, .35);
  --shadow-btn: 3px 4px 0 rgba(0, 0, 0, .4);
  --clip-notch: polygon(0 8px, 8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
  --clip-flag: polygon(0 0, calc(100% - 12px) 0, 100% 50%, calc(100% - 12px) 100%, 0 100%);
  --clip-corners: polygon(0 10px, 10px 0, calc(100% - 10px) 0, 100% 10px, 100% calc(100% - 10px), calc(100% - 10px) 100%, 10px 100%, 0 calc(100% - 10px));
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

[hidden] { display: none !important; }

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-white);
  background-color: var(--color-primary);
  background-image:
    linear-gradient(rgba(255, 255, 255, .03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .03) 1px, transparent 1px);
  background-size: 48px 48px;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

#main-content {
  scroll-margin-top: calc(var(--header-offset) + 8px);
}

/* 左侧品牌轨道 —— 侧边导览式布局的脊背 */
@media (min-width: 1280px) {
  body {
    padding-left: 40px;
  }
  body::after {
    content: '安博CN · 体育历史交锋检索第一站';
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(180deg, var(--color-accent) 0%, var(--color-panel) 30%, var(--color-indigo) 100%);
    border-right: 2px solid rgba(255, 255, 255, .12);
    writing-mode: vertical-rl;
    white-space: nowrap;
    font-family: var(--font-head);
    font-size: 11px;
    letter-spacing: .32em;
    color: var(--color-white);
    z-index: 2000;
    pointer-events: none;
    opacity: .92;
  }
}

@media (max-width: 1279px) {
  body { padding-left: 0; }
  body::after { display: none; }
}

/* ============ ACCESSIBILITY & UTILITY ============ */
.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  margin: -1px !important;
  padding: 0 !important;
  border: 0 !important;
  clip: rect(0 0 0 0) !important;
  overflow: hidden !important;
  white-space: nowrap !important;
}

.skip-link {
  position: fixed;
  top: -100px;
  left: 12px;
  z-index: 9999;
  background: var(--color-accent);
  color: var(--color-white);
  padding: 8px 20px;
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  border-radius: 0 0 var(--radius) var(--radius);
  transition: top var(--transition);
}

.skip-link:focus { top: 0; }

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-head);
  color: var(--color-white);
  line-height: 1.3;
}

a {
  color: inherit;
}

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

/* ============ LAYOUT PRIMITIVES ============ */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.section {
  padding: 48px 0;
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}

.section-title {
  font-family: var(--font-head);
  font-size: 28px;
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.3;
  display: flex;
  align-items: center;
  gap: 12px;
  letter-spacing: .02em;
}

.section-title__num {
  font-family: var(--font-num);
  font-size: 18px;
  color: var(--color-accent);
  font-weight: 700;
}

.section-title__line {
  flex: 1;
  height: 2px;
  background: linear-gradient(90deg, var(--color-indigo), transparent);
  min-width: 40px;
}

.page-title {
  font-family: var(--font-head);
  font-size: clamp(30px, 5vw, 44px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-white);
  position: relative;
  padding-left: 20px;
  margin-bottom: 12px;
}

.page-title::before {
  content: '';
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 6px;
  background: var(--color-accent);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 calc(100% - 6px));
}

.page-title__sub {
  font-size: 16px;
  color: var(--color-silver);
  font-family: var(--font-body);
  font-weight: 400;
}

.page-intro {
  font-size: 16px;
  color: var(--color-silver);
  max-width: 720px;
  margin-top: 12px;
}

/* ============ HEADER ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(10, 30, 51, .97);
  border-bottom: 1px solid rgba(255, 255, 255, .08);
  box-shadow: 0 8px 24px rgba(0, 0, 0, .3);
}

.site-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-indigo) 70%, transparent 100%);
}

.site-header__bar {
  display: flex;
  align-items: center;
  gap: 16px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 12px var(--gutter);
  min-height: var(--header-h);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--color-white);
  flex-shrink: 0;
}

.brand__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--color-accent) 0%, #D63A00 100%);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: .04em;
  color: var(--color-white);
  clip-path: var(--clip-corners);
  filter: drop-shadow(2px 3px 0 rgba(0, 0, 0, .4));
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand__name {
  font-family: var(--font-head);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  line-height: 1.1;
}

.brand__name em {
  font-style: normal;
  color: var(--color-accent);
}

.brand__sub {
  font-size: 11px;
  color: var(--color-silver);
  letter-spacing: .12em;
  white-space: nowrap;
  border-left: 2px solid var(--color-accent);
  padding-left: 6px;
  margin-top: 2px;
}

@media (max-width: 640px) {
  .brand__sub { display: none; }
  .brand__name { font-size: 20px; }
  .brand__mark { width: 38px; height: 38px; font-size: 16px; }
}

/* ============ NAVIGATION ============ */
.main-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: auto;
}

.main-nav__link {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 8px 12px;
  color: var(--color-silver);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  border-radius: 2px;
  position: relative;
  white-space: nowrap;
  transition: color var(--transition), background var(--transition);
}

.main-nav__num {
  font-family: var(--font-num);
  font-size: 11px;
  font-weight: 700;
  color: var(--color-accent);
  opacity: .75;
}

.main-nav__link:hover {
  color: var(--color-white);
  background: rgba(255, 255, 255, .06);
}

.main-nav__link[aria-current="page"] {
  color: var(--color-white);
  background: rgba(255, 255, 255, .04);
}

.main-nav__link[aria-current="page"]::after {
  content: '';
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 2px;
  height: 3px;
  background: var(--color-accent);
  clip-path: polygon(0 0, 100% 0, calc(100% - 4px) 100%, 4px 100%);
}

.download-cta {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 9px 18px;
  background: linear-gradient(135deg, var(--color-accent) 0%, #E63800 100%);
  color: var(--color-white);
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: .06em;
  text-decoration: none;
  clip-path: var(--clip-flag);
  flex-shrink: 0;
  filter: drop-shadow(2px 3px 0 rgba(0, 0, 0, .4));
  transition: filter var(--transition), transform var(--transition);
}

.download-cta:hover {
  filter: drop-shadow(4px 5px 0 rgba(0, 0, 0, .45)) brightness(1.1);
  transform: translate(-1px, -1px);
}

.download-cta__icon {
  font-size: 18px;
  line-height: 1;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: var(--radius);
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  flex-shrink: 0;
  transition: background var(--transition), border-color var(--transition);
}

.nav-toggle:hover {
  background: rgba(255, 255, 255, .1);
}

.nav-toggle__bar {
  width: 20px;
  height: 2px;
  background: var(--color-white);
  display: block;
  border-radius: 1px;
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(5, 10, 20, .65);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: opacity .25s ease, visibility .25s;
}

.nav-overlay[data-open] {
  opacity: 1;
  visibility: visible;
}

/* ============ SEARCH RIBBON ============ */
.search-ribbon {
  position: relative;
  border-top: 1px solid rgba(255, 255, 255, .08);
  background: rgba(10, 30, 51, .95);
}

.search-ribbon__trigger {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 10px var(--gutter);
  background: transparent;
  border: none;
  color: var(--color-silver);
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 14px;
  min-height: var(--ribbon-h);
  text-align: left;
  transition: color var(--transition);
}

.search-ribbon__trigger:hover {
  color: var(--color-white);
}

.search-ribbon__led {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 8px rgba(255, 77, 28, .8);
  flex-shrink: 0;
  animation: led-pulse 2s ease-in-out infinite;
}

@keyframes led-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .45; }
}

.search-ribbon__label {
  color: var(--color-accent);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: .06em;
  flex-shrink: 0;
}

.search-ribbon__hint {
  color: var(--color-silver);
  font-size: 13px;
  flex-shrink: 0;
}

.search-ribbon__badge {
  margin-left: auto;
  font-size: 11px;
  font-weight: 700;
  font-family: var(--font-head);
  letter-spacing: .1em;
  color: var(--color-white);
  background: rgba(255, 77, 28, .15);
  border: 1px solid rgba(255, 77, 28, .4);
  padding: 3px 10px;
  border-radius: 2px;
  flex-shrink: 0;
}

.search-ribbon__chevron {
  font-size: 16px;
  flex-shrink: 0;
  transition: transform var(--transition);
}

.search-ribbon[data-expanded="true"] .search-ribbon__chevron {
  transform: rotate(180deg);
}

.search-ribbon__panel {
  max-height: 0;
  overflow: hidden;
  background: var(--color-panel);
  transition: max-height .35s ease;
}

.search-ribbon[data-expanded="true"] .search-ribbon__panel {
  max-height: 320px;
  border-bottom: 2px solid var(--color-accent);
}

.search-ribbon__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 16px var(--gutter);
}

.search-form {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto;
  gap: 12px;
  align-items: end;
}

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

.search-form__label {
  font-size: 12px;
  color: var(--color-silver);
  letter-spacing: .1em;
  font-weight: 500;
}

.search-form__input {
  width: 100%;
  padding: 10px 14px;
  background: var(--color-primary);
  border: 1px solid rgba(255, 255, 255, .15);
  color: var(--color-white);
  font-family: var(--font-body);
  font-size: 15px;
  border-radius: 2px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.search-form__input::placeholder {
  color: rgba(255, 255, 255, .35);
}

.search-form__input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 2px rgba(255, 77, 28, .25);
}

.search-form__input[data-invalid] {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 2px rgba(255, 77, 28, .2);
}

.search-form__vs {
  align-self: center;
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--color-accent);
  font-size: 20px;
  letter-spacing: .05em;
  padding-bottom: 10px;
  line-height: 1;
}

.search-form__submit {
  padding: 11px 26px;
  background: linear-gradient(135deg, var(--color-accent) 0%, #E63800 100%);
  border: none;
  color: var(--color-white);
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: .08em;
  cursor: pointer;
  clip-path: var(--clip-flag);
  filter: drop-shadow(2px 3px 0 rgba(0, 0, 0, .4));
  transition: filter var(--transition), transform var(--transition);
}

.search-form__submit:hover {
  filter: drop-shadow(3px 4px 0 rgba(0, 0, 0, .45)) brightness(1.1);
  transform: translate(-1px, -1px);
}

@media (max-width: 640px) {
  .search-ribbon__hint { display: none; }
  .search-ribbon__badge { font-size: 10px; padding: 2px 8px; }
  .search-form {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .search-form__vs {
    text-align: center;
    padding: 0;
    line-height: 1.2;
  }
  .search-ribbon[data-expanded="true"] .search-ribbon__panel {
    max-height: 420px;
  }
  .search-form__submit {
    width: 100%;
    text-align: center;
  }
}

/* ============ MOBILE NAV ============ */
@media (max-width: 1023px) {
  .site-header__bar {
    gap: 10px;
  }
  .main-nav {
    position: fixed;
    top: var(--header-offset);
    right: 0;
    bottom: 0;
    width: min(320px, 86vw);
    background: var(--color-panel);
    border-left: 2px solid rgba(255, 255, 255, .12);
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 32px 20px 24px;
    transform: translateX(100%);
    transition: transform .3s cubic-bezier(.4, 0, .2, 1);
    margin-left: 0;
    overflow-y: auto;
  }
  .main-nav[data-open] {
    transform: translateX(0);
  }
  .main-nav__link {
    padding: 14px 14px;
    font-size: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, .06);
    border-radius: 0;
    justify-content: flex-start;
  }
  .main-nav__num {
    font-size: 12px;
  }
  .main-nav__link[aria-current="page"]::after {
    left: 0;
    right: auto;
    top: 0;
    bottom: 0;
    width: 4px;
    height: auto;
    clip-path: none;
  }
  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
  }
  .download-cta {
    margin-left: 0;
  }
  .download-cta__text {
    display: none;
  }
  .download-cta {
    padding: 9px 12px;
  }
  .download-cta__icon {
    font-size: 20px;
  }
}

/* ============ FOOTER ============ */
.site-footer {
  position: relative;
  background: linear-gradient(180deg, var(--color-primary) 0%, #0B243C 60%, #0A1E33 100%);
  border-top: 4px solid var(--color-accent);
  margin-top: 0;
  overflow: hidden;
}

.site-footer::before {
  content: '';
  display: block;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-indigo), var(--color-wine));
}

.site-footer::after {
  content: 'ANBO';
  position: absolute;
  right: -20px;
  bottom: -30px;
  font-family: var(--font-head);
  font-size: 140px;
  font-weight: 700;
  color: rgba(255, 255, 255, .025);
  pointer-events: none;
  letter-spacing: .1em;
  line-height: 1;
  z-index: 0;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 2.2fr 1fr 1.4fr 1fr;
  gap: 40px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 56px var(--gutter) 40px;
  position: relative;
  z-index: 1;
}

.footer-brand__logo {
  font-family: var(--font-head);
  font-size: 28px;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: .05em;
  line-height: 1.2;
  display: inline-block;
}

.footer-brand__logo em {
  color: var(--color-accent);
  font-style: normal;
}

.footer-brand__desc {
  margin-top: 14px;
  font-size: 14px;
  color: var(--color-silver);
  line-height: 1.8;
}

.footer-brand__trust {
  margin-top: 14px;
  font-size: 12px;
  color: rgba(255, 255, 255, .5);
  border-left: 3px solid var(--color-wine);
  padding-left: 10px;
  line-height: 1.6;
}

.footer-col__title {
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 600;
  color: var(--color-white);
  letter-spacing: .15em;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  text-transform: uppercase;
}

.footer-col__title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, rgba(255, 77, 28, .5), transparent);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: var(--color-silver);
  text-decoration: none;
  font-size: 14px;
  display: inline-block;
  transition: color var(--transition), padding-left var(--transition);
}

.footer-links a:hover {
  color: var(--color-white);
  padding-left: 6px;
  border-left: 2px solid var(--color-accent);
}

.footer-contact {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 14px;
  color: var(--color-silver);
  line-height: 1.6;
}

.footer-contact__note {
  font-size: 12px;
  color: rgba(255, 255, 255, .5);
  border-top: 1px solid rgba(255, 255, 255, .08);
  padding-top: 10px;
  margin-top: 2px;
}

.site-footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, .08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 16px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 20px var(--gutter);
  font-size: 13px;
  color: rgba(255, 255, 255, .6);
  position: relative;
  z-index: 1;
}

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

@media (max-width: 991px) {
  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    padding-top: 40px;
  }
}

@media (max-width: 640px) {
  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-top: 32px;
  }
  .site-footer__bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: .06em;
  border-radius: 2px;
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  line-height: 1.2;
  transition: all var(--transition);
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-accent) 0%, #E63800 100%);
  color: var(--color-white);
  border-color: transparent;
  clip-path: var(--clip-notch);
  filter: drop-shadow(2px 3px 0 rgba(0, 0, 0, .4));
}

.btn--primary:hover {
  filter: drop-shadow(4px 5px 0 rgba(0, 0, 0, .45)) brightness(1.1);
  transform: translate(-1px, -1px);
}

.btn--ghost {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, .3);
}

.btn--ghost:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: rgba(255, 77, 28, .05);
}

.btn--block {
  display: flex;
  width: 100%;
}

/* ============ BREADCRUMB ============ */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: rgba(255, 255, 255, .5);
  margin-bottom: 24px;
}

.breadcrumb a {
  color: var(--color-silver);
  text-decoration: none;
  transition: color var(--transition);
}

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

.breadcrumb__sep {
  color: rgba(255, 255, 255, .3);
}

/* ============ CARDS ============ */
.card {
  background: var(--color-panel);
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  position: relative;
}

.card:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 77, 28, .35);
  box-shadow: 0 12px 32px rgba(0, 0, 0, .45);
}

.card--accent { border-top: 3px solid var(--color-accent); }
.card--indigo { border-top: 3px solid var(--color-indigo); }
.card--wine { border-top: 3px solid var(--color-wine); }

.card__title {
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 8px;
}

.card__text {
  font-size: 14px;
  color: var(--color-silver);
  line-height: 1.7;
}

.card__meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 14px;
  font-size: 12px;
  color: rgba(255, 255, 255, .5);
}

/* ============ TAGS ============ */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  font-size: 12px;
  font-family: var(--font-head);
  letter-spacing: .08em;
  color: var(--color-silver);
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 2px;
  text-decoration: none;
  line-height: 1.4;
  transition: all var(--transition);
}

.tag--accent {
  background: rgba(255, 77, 28, .1);
  border-color: rgba(255, 77, 28, .35);
  color: #FF9A78;
}

.tag--indigo {
  background: rgba(74, 61, 143, .2);
  border-color: rgba(74, 61, 143, .5);
  color: #B4A8F4;
}

/* ============ FILTER ============ */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
}

.filter-btn {
  padding: 6px 16px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, .15);
  color: var(--color-silver);
  font-family: var(--font-body);
  font-size: 13px;
  cursor: pointer;
  border-radius: 2px;
  line-height: 1.5;
  transition: all var(--transition);
}

.filter-btn:hover {
  border-color: var(--color-accent);
  color: var(--color-white);
  background: rgba(255, 77, 28, .05);
}

.filter-btn.is-active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-white);
  font-weight: 600;
  box-shadow: 2px 3px 0 rgba(0, 0, 0, .35);
}

/* ============ DATA DISPLAY ============ */
.data-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.data-number {
  font-family: var(--font-num);
  font-size: 42px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--color-accent);
}

.data-number--white {
  color: var(--color-white);
}

.data-number__unit {
  font-size: 16px;
  font-weight: 500;
  color: var(--color-silver);
  margin-left: 4px;
  font-family: var(--font-body);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.data-table th {
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 600;
  text-align: left;
  padding: 12px 16px;
  color: var(--color-silver);
  border-bottom: 2px solid var(--color-indigo);
  background: rgba(255, 255, 255, .03);
  letter-spacing: .06em;
}

.data-table td {
  padding: 12px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, .06);
  color: var(--color-silver);
}

.data-table tbody tr:hover td {
  background: rgba(255, 255, 255, .02);
  color: var(--color-white);
}

/* ============ IMAGE FRAME ============ */
.image-frame {
  position: relative;
  display: block;
  width: 100%;
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-panel) 0%, var(--color-primary) 100%);
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: 2px;
}

.image-frame::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 77, 28, .08) 0%, transparent 50%);
  pointer-events: none;
}

.image-frame--16x9 { aspect-ratio: 16 / 9; }
.image-frame--4x3 { aspect-ratio: 4 / 3; }
.image-frame--21x9 { aspect-ratio: 21 / 9; }
.image-frame--1x1 { aspect-ratio: 1 / 1; }

.image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.image-frame__placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, .3);
  font-family: var(--font-head);
  font-size: 14px;
  letter-spacing: .12em;
  text-transform: uppercase;
}

/* ============ INDEX LIST ============ */
.index-list {
  list-style: none;
  counter-reset: index-count;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.index-list__item {
  counter-increment: index-count;
  display: grid;
  grid-template-columns: 52px 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255, 255, 255, .06);
  text-decoration: none;
  transition: background var(--transition), padding-left var(--transition);
}

.index-list__item::before {
  content: counter(index-count, decimal-leading-zero);
  font-family: var(--font-num);
  font-size: 30px;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
}

.index-list__item:hover {
  background: rgba(255, 255, 255, .03);
  padding-left: 8px;
}

.index-list__title {
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 2px;
}

.index-list__desc {
  font-size: 13px;
  color: var(--color-silver);
}

.index-list__arrow {
  color: var(--color-accent);
  font-size: 20px;
  font-weight: 700;
}

/* ============ PROSE ============ */
.prose p {
  margin-bottom: 16px;
  color: var(--color-silver);
  line-height: 1.8;
}

.prose h2 {
  font-family: var(--font-head);
  font-size: 24px;
  font-weight: 700;
  margin: 36px 0 14px;
  color: var(--color-white);
  letter-spacing: .02em;
}

.prose h3 {
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 600;
  margin: 28px 0 10px;
  color: var(--color-white);
}

.prose ul {
  list-style: none;
  margin: 16px 0;
  padding: 0;
}

.prose ul li {
  padding-left: 22px;
  position: relative;
  color: var(--color-silver);
  margin-bottom: 8px;
}

.prose ul li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--color-accent);
}

.prose a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.prose strong {
  color: var(--color-white);
  font-weight: 600;
}

/* ============ NOTICE BAR ============ */
.notice-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  background: rgba(139, 46, 59, .12);
  border: 1px solid rgba(139, 46, 59, .4);
  border-left: 4px solid var(--color-wine);
  color: var(--color-silver);
  font-size: 14px;
  border-radius: var(--radius);
  margin-bottom: 24px;
}

.notice-bar__icon {
  color: var(--color-accent);
  font-size: 18px;
  flex-shrink: 0;
}

.notice-bar__strong {
  color: var(--color-white);
  font-weight: 600;
}

/* ============ PAGINATION ============ */
.pagination-nav {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.pagination-nav__link {
  min-width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, .15);
  color: var(--color-silver);
  text-decoration: none;
  font-family: var(--font-num);
  font-size: 14px;
  border-radius: 2px;
  padding: 0 8px;
  transition: all var(--transition);
}

.pagination-nav__link:hover,
.pagination-nav__link.is-current {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-white);
  box-shadow: 2px 3px 0 rgba(0, 0, 0, .35);
}

/* ============ CATALOG LAYOUT ============ */
.catalog-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 40px;
  align-items: start;
}

.catalog-layout__main {
  min-width: 0;
}

.catalog-layout__side {
  position: sticky;
  top: calc(var(--header-offset) + 16px);
  min-width: 0;
}

@media (max-width: 1099px) {
  .catalog-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .catalog-layout__side {
    position: static;
  }
}

/* ============ REDUCED MOTION ============ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  html {
    scroll-behavior: auto;
  }
}