/* ==========================================================================
   欧帝体育CN — /assets/site.css
   共享外壳：reset、变量、中文排版、头部、页脚、通用组件
   ========================================================================== */

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

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

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

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

a { color: inherit; text-decoration: none; }

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

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

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

[hidden] { display: none !important; }

/* ---------- 2. 设计变量 ---------- */
:root {
  /* 色彩 */
  --c-night: #04120E;
  --c-turf: #0A2A21;
  --c-tactical: #124535;
  --c-cyan: #16F2B8;
  --c-orange: #FF8A3D;
  --c-violet: #7C5CFF;
  --c-mist: #EEF3F1;
  --c-gray: #9BB0A8;
  --c-silver: #C6D0CC;
  --c-panel: #1B1F1E;

  --cyan-06: rgba(22, 242, 184, 0.06);
  --cyan-12: rgba(22, 242, 184, 0.12);
  --cyan-32: rgba(22, 242, 184, 0.32);
  --orange-12: rgba(255, 138, 61, 0.12);
  --orange-28: rgba(255, 138, 61, 0.28);
  --violet-12: rgba(124, 92, 255, 0.12);
  --line: rgba(198, 208, 204, 0.16);
  --line-strong: rgba(198, 208, 204, 0.32);

  /* 尺度 */
  --shell: 1280px;
  --gutter: clamp(18px, 4.4vw, 48px);
  --r-sm: 12px;
  --r-md: 18px;
  --r-lg: 26px;
  --r-xl: 34px;
  --r-pill: 999px;

  --sp-1: 8px;
  --sp-2: 14px;
  --sp-3: 22px;
  --sp-4: 32px;
  --sp-5: 48px;
  --sp-6: 72px;

  --shadow-lift: 0 26px 60px -34px rgba(0, 0, 0, 0.8);
  --shadow-panel: 0 30px 70px -28px rgba(0, 0, 0, 0.85);

  --z-header: 60;
  --z-drawer: 70;
  --z-trigger: 80;

  /* 字体 */
  --f-display: "HarmonyOS Sans SC", "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --f-body: "Inter", "HarmonyOS Sans SC", "Source Han Sans SC", "PingFang SC", system-ui, -apple-system, "Microsoft YaHei", sans-serif;
  --f-mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, "Noto Sans Mono CJK SC", monospace;
}

/* ---------- 3. 基础排版 ---------- */
body {
  min-height: 100vh;
  background-color: var(--c-night);
  background-image:
    radial-gradient(120% 80% at 8% -12%, rgba(22, 242, 184, 0.10), transparent 58%),
    radial-gradient(90% 70% at 102% 2%, rgba(124, 92, 255, 0.11), transparent 55%),
    linear-gradient(180deg, #04120E 0%, #061913 100%);
  background-attachment: fixed;
  color: var(--c-mist);
  font-family: var(--f-body);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: 0.005em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(198, 208, 204, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(198, 208, 204, 0.035) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(120% 90% at 50% 0%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(120% 90% at 50% 0%, #000 20%, transparent 78%);
}

#main-content { display: block; scroll-margin-top: 96px; }

p { max-width: 68ch; }

.t-display {
  font-family: var(--f-display);
  font-weight: 900;
  font-size: clamp(42px, 7.4vw, 72px);
  line-height: 1.02;
  letter-spacing: -0.02em;
}

.t-h2 {
  font-family: var(--f-display);
  font-weight: 800;
  font-size: clamp(26px, 3.6vw, 40px);
  line-height: 1.16;
  letter-spacing: -0.02em;
}

.t-h3 {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: clamp(19px, 2vw, 24px);
  line-height: 1.3;
  letter-spacing: -0.015em;
}

.t-body { font-size: 16px; line-height: 1.75; color: var(--c-silver); }

.t-note { font-size: 13px; line-height: 1.6; color: var(--c-gray); }

.eyebrow {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-cyan);
}

.num {
  font-family: var(--f-mono);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
  letter-spacing: -0.01em;
}

.rail-note {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.32em;
  color: var(--c-gray);
}

/* ---------- 4. 布局工具 ---------- */
.shell {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.zone { position: relative; padding-block: clamp(52px, 7.5vw, 104px); }
.zone--night { background: transparent; }
.zone--turf { background: linear-gradient(180deg, rgba(10, 42, 33, 0.92), rgba(10, 42, 33, 0.55)); }
.zone--tactical { background: linear-gradient(180deg, rgba(18, 69, 53, 0.55), rgba(4, 18, 14, 0.35)); }

.stack { display: flex; flex-direction: column; gap: var(--sp-3); }
.stack--lg { gap: var(--sp-5); }

.grid { display: grid; gap: clamp(18px, 2.6vw, 32px); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--half { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--split { grid-template-columns: minmax(0, 7fr) minmax(0, 3fr); }
.grid--split-alt { grid-template-columns: minmax(0, 3fr) minmax(0, 7fr); }

.rule {
  height: 1px;
  border: 0;
  background: linear-gradient(90deg, var(--line-strong), transparent);
}

.section-head {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: var(--sp-2) var(--sp-3);
  padding-bottom: var(--sp-2);
  margin-bottom: var(--sp-4);
  border-bottom: 1px solid var(--line);
}

.section-head__index {
  font-family: var(--f-mono);
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--c-cyan);
  padding-bottom: 4px;
}

.section-head__title { margin-right: auto; }

.section-head__note {
  font-size: 13px;
  color: var(--c-gray);
  max-width: 34ch;
}

.page-head { padding-block: clamp(38px, 5vw, 68px) clamp(24px, 3vw, 40px); }
.page-head__lede { margin-top: var(--sp-3); color: var(--c-silver); }

/* ---------- 5. 按钮 / 胶囊 / 标签 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 24px;
  border-radius: var(--r-pill);
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 15px;
  line-height: 1.2;
  letter-spacing: 0.01em;
  transition: transform 0.18s ease, background-color 0.18s ease, color 0.18s ease, box-shadow 0.18s ease;
}

.btn--primary {
  background: var(--c-orange);
  color: #1A0C02;
  box-shadow: 0 14px 34px -18px var(--orange-28);
}

.btn--primary:hover { transform: translateY(-2px); background: #FF9C58; }

.btn--ghost {
  color: var(--c-cyan);
  box-shadow: inset 0 0 0 1px var(--cyan-32);
  background: var(--cyan-06);
}

.btn--ghost:hover { background: var(--cyan-12); transform: translateY(-2px); }

.btn--sm { padding: 9px 16px; font-size: 13px; }

.chip {
  display: inline-flex;
  align-items: center;
  padding: 7px 15px;
  border-radius: var(--r-pill);
  font-size: 13px;
  color: var(--c-silver);
  background: rgba(198, 208, 204, 0.06);
  box-shadow: inset 0 0 0 1px var(--line);
  transition: color 0.16s ease, background-color 0.16s ease, box-shadow 0.16s ease;
}

.chip:hover { color: var(--c-mist); box-shadow: inset 0 0 0 1px var(--line-strong); }

.chip[aria-pressed="true"] {
  color: #04231A;
  background: var(--c-cyan);
  box-shadow: inset 0 0 0 1px var(--c-cyan);
  font-weight: 600;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 11px;
  border-radius: var(--r-pill);
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--c-violet);
  background: var(--violet-12);
  box-shadow: inset 0 0 0 1px rgba(124, 92, 255, 0.35);
}

.tag--warm { color: var(--c-orange); background: var(--orange-12); box-shadow: inset 0 0 0 1px var(--orange-28); }
.tag--cool { color: var(--c-cyan); background: var(--cyan-12); box-shadow: inset 0 0 0 1px var(--cyan-32); }

/* ---------- 6. 头部 ---------- */
.skip-link {
  position: fixed;
  top: -80px;
  left: 16px;
  z-index: 200;
  padding: 11px 18px;
  border-radius: var(--r-pill);
  background: var(--c-cyan);
  color: #04231A;
  font-weight: 700;
  font-size: 14px;
  transition: top 0.2s ease;
}

.skip-link:focus { top: 14px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: rgba(4, 18, 14, 0.88);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.site-header__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  min-height: 74px;
  padding-block: 12px;
}

.site-header__tail {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
}

/* 品牌署名 */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 4px 0;
}

.brand__mark { color: var(--c-silver); flex: 0 0 auto; }
.brand__core { stroke: var(--c-cyan); }

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

.brand__name {
  font-family: var(--f-display);
  font-weight: 900;
  font-size: 21px;
  letter-spacing: -0.02em;
  color: var(--c-mist);
}

.brand__cn {
  font-style: normal;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--c-cyan);
  margin-left: 5px;
  vertical-align: 2px;
}

.brand__meta {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--c-gray);
}

.brand--footer .brand__name { font-size: 24px; }

/* 桌面导航 */
.site-nav__list { display: flex; align-items: center; gap: 2px; }

.site-nav__link {
  display: block;
  padding: 9px 14px;
  border-radius: var(--r-pill);
  font-size: 14.5px;
  color: var(--c-silver);
  white-space: nowrap;
  transition: color 0.16s ease, background-color 0.16s ease, box-shadow 0.16s ease;
}

.site-nav__link:hover { color: var(--c-mist); background: rgba(198, 208, 204, 0.08); }

.site-nav__link[aria-current="page"] {
  color: var(--c-cyan);
  background: var(--cyan-12);
  box-shadow: inset 0 0 0 1px var(--cyan-32);
}

/* 快捷筛选胶囊 */
.filter-pill { position: relative; }

.filter-pill__trigger {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 16px;
  border-radius: var(--r-pill);
  font-size: 13px;
  color: var(--c-mist);
  background: rgba(18, 69, 53, 0.7);
  box-shadow: inset 0 0 0 1px var(--line-strong);
  transition: box-shadow 0.18s ease, background-color 0.18s ease;
}

.filter-pill__trigger:hover { box-shadow: inset 0 0 0 1px var(--cyan-32); background: rgba(18, 69, 53, 0.95); }

.filter-pill[data-open] .filter-pill__trigger {
  box-shadow: inset 0 0 0 1px var(--c-cyan);
  background: var(--cyan-06);
}

.filter-pill__label {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--c-cyan);
}

.filter-pill__value { color: var(--c-silver); }

.filter-pill__caret {
  width: 8px;
  height: 8px;
  border-right: 1.6px solid currentColor;
  border-bottom: 1.6px solid currentColor;
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform 0.2s ease;
}

.filter-pill[data-open] .filter-pill__caret { transform: rotate(225deg) translate(-2px, -2px); }

.filter-panel {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  z-index: var(--z-trigger);
  width: min(460px, calc(100vw - 2 * var(--gutter)));
  padding: 20px;
  border-radius: var(--r-lg);
  background: linear-gradient(180deg, #0E3327, #061913);
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow-panel);
}

.filter-panel__hint { font-size: 12px; color: var(--c-gray); margin-bottom: var(--sp-3); }

.filter-panel__group { margin-bottom: var(--sp-3); }

.filter-panel__title {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--c-cyan);
  margin-bottom: 10px;
}

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

.filter-panel__actions {
  display: flex;
  justify-content: flex-end;
  padding-top: var(--sp-2);
  border-top: 1px dashed var(--line);
}

/* 移动导航按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 9px 16px;
  border-radius: var(--r-pill);
  font-size: 13px;
  color: var(--c-mist);
  box-shadow: inset 0 0 0 1px var(--line-strong);
}

.nav-toggle__bars {
  position: relative;
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: background-color 0.2s ease;
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 0.24s ease;
}

.nav-toggle__bars::before { top: -5px; }
.nav-toggle__bars::after { top: 5px; }

.nav-toggle[aria-expanded="true"] { color: var(--c-cyan); box-shadow: inset 0 0 0 1px var(--c-cyan); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before { transform: translateY(5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after { transform: translateY(-5px) rotate(-45deg); }

/* 顶部滚动进度 */
.scroll-progress {
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--c-cyan), var(--c-violet) 55%, var(--c-orange));
  transition: width 0.1s linear;
}

/* ---------- 7. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(48px, 8vw, 110px);
  padding-top: clamp(46px, 7vw, 84px);
  background: linear-gradient(180deg, #0A2A21 0%, #061913 62%, #04120E 100%);
  border-top: 1px solid var(--line);
  overflow: hidden;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: -8%;
  width: 66%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--c-cyan), transparent);
  opacity: 0.65;
  transform: rotate(-1.8deg);
  transform-origin: left top;
}

.site-footer__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1.5fr) minmax(0, 1fr);
  gap: clamp(28px, 5vw, 64px);
  padding-bottom: clamp(34px, 5vw, 56px);
}

.site-footer__tagline {
  margin-top: var(--sp-3);
  font-size: 14px;
  color: var(--c-gray);
  max-width: 36ch;
}

.to-top {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: var(--sp-4);
  padding: 9px 16px;
  border-radius: var(--r-pill);
  font-size: 13px;
  color: var(--c-cyan);
  box-shadow: inset 0 0 0 1px var(--cyan-32);
  transition: background-color 0.18s ease, transform 0.18s ease;
}

.to-top:hover { background: var(--cyan-12); transform: translateY(-2px); }

.site-footer__cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(18px, 3vw, 32px);
}

.footer-col__title {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--c-cyan);
  margin-bottom: var(--sp-2);
}

.footer-col__list { display: flex; flex-direction: column; gap: 10px; }

.footer-col__list a {
  font-size: 14.5px;
  color: var(--c-silver);
  transition: color 0.16s ease;
}

.footer-col__list a:hover { color: var(--c-cyan); }

.contact-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-block: 8px;
  border-bottom: 1px dashed var(--line);
}

.contact-item__label { font-size: 11px; letter-spacing: 0.14em; color: var(--c-gray); font-family: var(--f-mono); }
.contact-item__value { font-size: 14.5px; color: var(--c-mist); word-break: break-all; }

.site-footer__note { margin-top: var(--sp-2); font-size: 12.5px; color: var(--c-gray); }

.site-footer__legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-2);
  padding-block: 20px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  color: var(--c-gray);
}

/* ---------- 8. 内容组件 ---------- */
.breadcrumb { margin-bottom: var(--sp-3); }

.breadcrumb ol { display: flex; flex-wrap: wrap; gap: 8px; font-size: 13px; color: var(--c-gray); }

.breadcrumb li + li::before { content: "／"; margin-right: 8px; color: var(--line-strong); }

.breadcrumb a { color: var(--c-silver); }
.breadcrumb a:hover { color: var(--c-cyan); }
.breadcrumb [aria-current="page"] { color: var(--c-cyan); }

.data-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(18px, 2.2vw, 26px);
  border-radius: var(--r-lg);
  background: linear-gradient(160deg, rgba(18, 69, 53, 0.85), rgba(10, 42, 33, 0.6));
  box-shadow: inset 0 0 0 1px var(--line);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.data-card:hover { transform: translateY(-3px); box-shadow: inset 0 0 0 1px var(--cyan-32), var(--shadow-lift); }

.data-card__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  font-size: 13px;
  color: var(--c-gray);
}

.data-card__value {
  font-family: var(--f-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--c-cyan);
}

.data-card__value--warm { color: var(--c-orange); }
.data-card__value--violet { color: var(--c-violet); }

.data-card__label { font-size: 14px; color: var(--c-mist); }
.data-card__foot { margin-top: auto; font-size: 12.5px; color: var(--c-gray); }

.data-table { font-size: 14px; }

.data-table caption {
  text-align: left;
  font-size: 12.5px;
  color: var(--c-gray);
  padding-bottom: 10px;
}

.data-table th,
.data-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}

.data-table thead th {
  background: rgba(18, 69, 53, 0.85);
  color: var(--c-mist);
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  font-weight: 600;
  white-space: nowrap;
}

.data-table tbody tr:nth-child(even) { background: rgba(27, 31, 30, 0.55); }
.data-table tbody tr:hover { background: var(--cyan-06); }
.data-table td.num { color: var(--c-mist); }

.meter {
  position: relative;
  height: 8px;
  border-radius: var(--r-pill);
  background: rgba(198, 208, 204, 0.12);
  overflow: hidden;
}

.meter__fill {
  display: block;
  height: 100%;
  width: calc(var(--v, 50) * 1%);
  border-radius: var(--r-pill);
  background: linear-gradient(90deg, var(--c-cyan), var(--c-violet));
}

.meter__fill--warm { background: linear-gradient(90deg, var(--c-orange), var(--c-violet)); }

.ledger { border-top: 1px solid var(--line); }

.ledger__row {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--sp-2);
  padding-block: 15px;
  border-bottom: 1px solid var(--line);
  transition: background-color 0.16s ease, padding-left 0.2s ease;
}

.ledger__row:hover { background: var(--cyan-06); padding-left: 10px; }

.ledger__index { font-family: var(--f-mono); font-size: 12px; color: var(--c-cyan); }

.ledger__title { font-family: var(--f-display); font-weight: 700; font-size: 16.5px; color: var(--c-mist); }

.ledger__meta { font-size: 12.5px; color: var(--c-gray); }

/* 图片容器基础规则（页面阶段放 <img> 或留空占位） */
.media-frame {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background:
    linear-gradient(160deg, rgba(22, 242, 184, 0.12), rgba(124, 92, 255, 0.12) 55%, rgba(255, 138, 61, 0.10)),
    var(--c-turf);
}

.media-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(198, 208, 204, 0.09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(198, 208, 204, 0.09) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: radial-gradient(120% 100% at 50% 0%, #000 32%, transparent 82%);
  -webkit-mask-image: radial-gradient(120% 100% at 50% 0%, #000 32%, transparent 82%);
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(114deg, transparent 46%, rgba(22, 242, 184, 0.4) 46.35%, transparent 47%);
  opacity: 0.55;
  pointer-events: none;
}

.media-frame > img {
  position: absolute;
  inset: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame--wide { aspect-ratio: 21 / 9; }
.media-frame--square { aspect-ratio: 1 / 1; }
.media-frame--tall { aspect-ratio: 4 / 5; }

.media-frame__tag {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  padding: 4px 11px;
  border-radius: var(--r-pill);
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: #04231A;
  background: var(--c-cyan);
}

.media-frame__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  padding: 18px;
  font-size: 12.5px;
  color: var(--c-silver);
  background: linear-gradient(transparent, rgba(4, 18, 14, 0.92));
}

.fold {
  border-bottom: 1px solid var(--line);
  padding-block: 6px;
}

.fold > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-2);
  padding-block: 14px;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 17px;
  color: var(--c-mist);
  cursor: pointer;
  list-style: none;
}

.fold > summary::-webkit-details-marker { display: none; }

.fold > summary::after {
  content: "+";
  font-family: var(--f-mono);
  font-size: 18px;
  color: var(--c-cyan);
  transition: transform 0.2s ease;
}

.fold[open] > summary::after { transform: rotate(45deg); }

.fold__body { padding-bottom: var(--sp-3); font-size: 15px; color: var(--c-silver); }

.tablist {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: thin;
}

.tab {
  flex: 0 0 auto;
  padding: 8px 16px;
  border-radius: var(--r-pill);
  font-size: 13.5px;
  color: var(--c-silver);
  box-shadow: inset 0 0 0 1px var(--line);
}

.tab[aria-selected="true"] {
  color: #04231A;
  background: var(--c-cyan);
  box-shadow: inset 0 0 0 1px var(--c-cyan);
}

.rail {
  display: flex;
  gap: clamp(14px, 2vw, 22px);
  overflow-x: auto;
  padding-bottom: 10px;
  scroll-snap-type: x proximity;
  scrollbar-width: thin;
}

.rail > * { flex: 0 0 min(320px, 78vw); scroll-snap-align: start; }

/* ---------- 9. 动效 ---------- */
html.js-reveal [data-reveal] {
  opacity: 0;
  transform: translate3d(0, 16px, 0);
  transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.22, 0.8, 0.3, 1);
  transition-delay: var(--reveal-delay, 0ms);
}

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

/* ---------- 10. 焦点 ---------- */
:focus-visible {
  outline: 2px dashed var(--c-cyan);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ---------- 11. 响应式 ---------- */
@media (max-width: 1080px) {
  .site-footer__inner { grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr); }
  .site-footer__contact { grid-column: 1 / -1; }
  .grid--split,
  .grid--split-alt { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 920px) {
  .brand__meta { display: none; }

  .nav-toggle { display: inline-flex; }

  .site-nav {
    position: fixed;
    inset: 0;
    z-index: var(--z-drawer);
    display: block;
    padding: calc(96px + env(safe-area-inset-top)) var(--gutter) 48px;
    overflow-y: auto;
    background:
      radial-gradient(120% 70% at 88% 0%, rgba(22, 242, 184, 0.14), transparent 58%),
      radial-gradient(90% 60% at 0% 100%, rgba(255, 138, 61, 0.12), transparent 60%),
      linear-gradient(180deg, #04120E, #07211A);
    transform: translateY(-102%);
    visibility: hidden;
    transition: transform 0.4s cubic-bezier(0.3, 0.9, 0.3, 1), visibility 0.4s;
  }

  .site-nav[data-open] {
    transform: translateY(0);
    visibility: visible;
  }

  .site-nav__list {
    display: flex;
    flex-direction: column;
    gap: 0;
    counter-reset: nav;
  }

  .site-nav__link {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 2px;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
    font-family: var(--f-display);
    font-weight: 800;
    font-size: clamp(21px, 5.6vw, 28px);
    letter-spacing: -0.02em;
    color: var(--c-mist);
    white-space: normal;
  }

  .site-nav__link::before {
    counter-increment: nav;
    content: counter(nav, decimal-leading-zero);
    font-family: var(--f-mono);
    font-size: 12px;
    letter-spacing: 0.12em;
    color: var(--c-cyan);
  }

  .site-nav__link:hover,
  .site-nav__link[aria-current="page"] {
    background: transparent;
    box-shadow: none;
    color: var(--c-cyan);
  }

  .nav-toggle { position: relative; z-index: var(--z-trigger); }

  body.is-nav-open { overflow: hidden; }

  .filter-panel { right: auto; left: 0; }
}

@media (max-width: 720px) {
  .grid--2,
  .grid--3,
  .grid--half { grid-template-columns: minmax(0, 1fr); }

  .site-footer__inner { grid-template-columns: minmax(0, 1fr); }
  .site-footer__cols { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .filter-pill__label { display: none; }
  .filter-pill__value { font-size: 12.5px; }

  .section-head { align-items: flex-start; }
  .section-head__note { max-width: none; }

  .ledger__row { grid-template-columns: 44px minmax(0, 1fr); }
  .ledger__meta { grid-column: 2 / -1; }
}

@media (max-width: 460px) {
  .brand__name { font-size: 18px; }
  .filter-panel__chips { gap: 6px; }
  .site-footer__cols { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- 12. 降低动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

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

  .site-nav { transition: none; }
}