/* =========================================================
   EMC 体育官方 · 共享样式 /assets/site.css
   框架式导航 + 堆叠画板 + 夜场绿单色体系
   ========================================================= */

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

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

body,
h1, h2, h3, h4, h5, h6,
p, figure, blockquote, dl, dd, ul, ol {
  margin: 0;
  padding: 0;
}

ul, ol { list-style: none; }

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

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

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

table { border-collapse: collapse; }

/* ---------- 2. 变量 ---------- */
:root {
  --green-night: #0B2B1E;
  --green-stand: #123D2A;
  --green-line: #1E5B3E;
  --lemon: #C9FF3D;
  --gold: #D8A62A;
  --red: #E0432F;
  --silver: #C7D3CE;
  --paper: #F3F0E6;
  --ink: #14181A;
  --moss: #86948C;

  --bg: var(--green-night);
  --bg-panel: var(--green-stand);
  --fg: var(--paper);
  --fg-dim: var(--silver);
  --fg-mute: var(--moss);
  --accent: var(--lemon);
  --line: var(--green-line);

  --font-serif: "Source Han Serif SC", "Noto Serif SC", "Songti SC", Songti, SimSun, "Times New Roman", serif;
  --font-sans: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", ui-monospace, Menlo, Consolas, "Liberation Mono", monospace;

  --wrap: 1240px;
  --gutter: clamp(16px, 4.2vw, 44px);
  --radius: 2px;
  --border: 1px solid var(--green-line);
  --shadow-panel: 0 20px 0 -12px rgba(0, 0, 0, 0.42);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --dur: 0.32s;
}

/* ---------- 3. 中文排版基底 ---------- */
body {
  min-height: 100vh;
  background-color: var(--bg);
  background-image:
    linear-gradient(180deg, rgba(30, 91, 62, 0.28) 0, rgba(11, 43, 30, 0) 420px);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.75;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: 0.012em;
}

h4 { font-size: 18px; }

p { text-wrap: pretty; }

::selection {
  background: var(--lemon);
  color: var(--ink);
}

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

/* ---------- 4. 布局容器 ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.wrap--narrow { max-width: 880px; }
.wrap--wide { max-width: 1480px; }

.section {
  position: relative;
  padding-block: clamp(40px, 7vw, 88px);
}

.section--stand { background: var(--green-stand); }

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

.section--paper .panel {
  background: #FFFFFF;
  border-color: rgba(20, 24, 26, 0.14);
  color: var(--ink);
}

.section--paper .panel__label { color: #5D6B62; }
.section--paper .panel__label::after { background: rgba(20, 24, 26, 0.18); }
.section--paper .panel__body { color: #3D4A44; }
.section--paper .stat__value { color: var(--ink); }
.section--paper .stat__label { color: #5D6B62; }
.section--paper .note { color: #4A5A52; border-left-color: rgba(20, 24, 26, 0.25); }
.section--paper .tag { color: #3D4A44; border-color: rgba(20, 24, 26, 0.22); }
.section--paper .lead { color: #3D4A44; }
.section--paper .data-table th,
.section--paper .data-table td { border-bottom-color: rgba(20, 24, 26, 0.16); }
.section--paper .data-table thead th { color: #5D6B62; }
.section--paper .data-table td.num { color: var(--ink); }

/* ---------- 5. 跳转链接 ---------- */
.skip-link {
  position: fixed;
  top: -120px;
  left: var(--gutter);
  z-index: 300;
  padding: 10px 18px;
  background: var(--lemon);
  color: var(--ink);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.08em;
  border-radius: var(--radius);
  transition: top 0.2s var(--ease);
}

.skip-link:focus {
  top: 12px;
  outline-color: var(--ink);
}

/* ---------- 6. 框架头部 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 120;
  background: linear-gradient(180deg, #0B2B1E 0%, #0D3324 100%);
  border-bottom: var(--border);
}

.site-header.is-compact {
  box-shadow: 0 16px 30px -22px rgba(0, 0, 0, 0.95);
}

.frame-rail {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 8px;
  display: none;
  background-image: repeating-linear-gradient(180deg, var(--green-line) 0 6px, transparent 6px 14px);
  opacity: 0.85;
  pointer-events: none;
}

.frame-rail--left { left: 0; }
.frame-rail--right { right: 0; }

.frame-top {
  position: relative;
  border-bottom: 1px solid rgba(30, 91, 62, 0.55);
}

.frame-top__inner {
  display: flex;
  align-items: center;
  gap: clamp(10px, 2vw, 28px);
  min-height: 64px;
  padding-block: 10px;
  transition: min-height 0.2s var(--ease), padding 0.2s var(--ease);
}

.site-header.is-compact .frame-top__inner {
  min-height: 52px;
  padding-block: 6px;
}

.frame-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}

.frame-brand__mark {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.18em;
  padding: 5px 9px;
  border: 1px solid var(--lemon);
  color: var(--lemon);
  text-transform: uppercase;
}

.frame-brand__line {
  font-size: 12px;
  letter-spacing: 0.13em;
  color: var(--silver);
  white-space: nowrap;
}

.frame-ticker {
  display: none;
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--silver);
}

.frame-ticker__label {
  color: var(--lemon);
  letter-spacing: 0.16em;
  margin-right: 10px;
}

.frame-ticker__item { margin: 0 8px; }

.frame-ticker__dot {
  color: rgba(134, 148, 140, 0.7);
}

.frame-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
  flex: 0 0 auto;
}

.frame-cta {
  padding: 9px 14px;
  font-size: 13px;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.frame-progress {
  position: relative;
  height: 2px;
  background: rgba(30, 91, 62, 0.55);
}

.frame-progress__bar {
  display: block;
  height: 100%;
  width: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--lemon) 0%, var(--gold) 100%);
}

/* ---------- 7. 移动导航按钮 ---------- */
.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border: 1px solid var(--green-line);
  border-radius: var(--radius);
  color: var(--paper);
  cursor: pointer;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease);
}

.nav-toggle:hover {
  border-color: var(--lemon);
  color: var(--lemon);
}

.nav-toggle__label {
  font-size: 13px;
  letter-spacing: 0.12em;
}

.nav-toggle__bars {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 3px;
  width: 16px;
}

.nav-toggle__bar {
  display: block;
  width: 100%;
  height: 2px;
  background: currentColor;
  transition: transform 0.2s var(--ease), opacity 0.2s var(--ease);
}

.nav-toggle__bar:nth-child(2) { width: 68%; }

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(5px) 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(-5px) rotate(-45deg);
}

/* ---------- 8. 栏目导航 ---------- */
.site-nav {
  display: none;
  background: var(--green-stand);
  border-top: 1px solid rgba(30, 91, 62, 0.7);
}

.site-nav[data-open] { display: block; }

.site-nav__inner { padding-block: 4px 20px; }

.site-nav__label {
  padding-top: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--moss);
}

.site-nav__list {
  display: flex;
  flex-direction: column;
  margin-top: 8px;
}

.site-nav__item { border-top: 1px solid rgba(30, 91, 62, 0.6); }

.site-nav__link {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 12px 6px;
  font-size: 16px;
  color: var(--silver);
  transition: color 0.18s var(--ease), background-color 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.site-nav__link:hover {
  color: var(--paper);
  background: rgba(201, 255, 61, 0.06);
}

.site-nav__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--moss);
}

.site-nav__text { white-space: nowrap; }

.site-nav__link[aria-current="page"] {
  color: var(--lemon);
  box-shadow: inset 3px 0 0 var(--lemon);
  background: rgba(201, 255, 61, 0.07);
}

.site-nav__link[aria-current="page"] .site-nav__num { color: var(--lemon); }

.site-nav__note {
  display: none;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--moss);
  white-space: nowrap;
}

/* ---------- 9. 页脚 ---------- */
.site-footer {
  margin-top: clamp(48px, 8vw, 110px);
  padding-block: clamp(36px, 6vw, 72px) 24px;
  background: linear-gradient(180deg, #0B2B1E 0%, #071C13 100%);
  border-top: var(--border);
}

.footer-panel {
  position: relative;
  padding: clamp(22px, 3.4vw, 44px);
  background: var(--green-stand);
  border: var(--border);
  box-shadow: var(--shadow-panel);
}

.footer-panel::before {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1px solid rgba(201, 255, 61, 0.1);
  pointer-events: none;
}

.footer-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(30, 91, 62, 0.8);
}

.footer-brand {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-mark {
  padding: 4px 10px;
  background: var(--lemon);
  color: var(--ink);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.18em;
}

.footer-brand__name {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--paper);
}

.footer-brand__line {
  flex-basis: 100%;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--moss);
}

.footer-stamp {
  padding: 5px 10px;
  border: 1px dashed rgba(216, 166, 42, 0.6);
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  white-space: nowrap;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  padding-top: 26px;
}

.footer-col__title {
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(30, 91, 62, 0.8);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--lemon);
}

.footer-links {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.footer-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  color: var(--silver);
  transition: color 0.18s var(--ease);
}

.footer-link::before {
  content: "";
  width: 6px;
  height: 1px;
  background: var(--green-line);
  transition: width 0.2s var(--ease), background-color 0.2s var(--ease);
}

.footer-link:hover { color: var(--lemon); }

.footer-link:hover::before {
  width: 16px;
  background: var(--lemon);
}

.footer-contact {
  display: grid;
  gap: 14px;
  margin-top: 14px;
}

.footer-contact__item { display: grid; gap: 3px; }

.footer-contact__label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--moss);
}

.footer-contact__value {
  font-size: 14px;
  line-height: 1.6;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.footer-note {
  margin-top: 16px;
  padding-left: 12px;
  border-left: 2px solid rgba(201, 255, 61, 0.4);
  font-size: 13px;
  line-height: 1.75;
  color: var(--moss);
}

.footer-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  margin-top: clamp(24px, 4vw, 44px);
  padding-top: 18px;
  border-top: 1px solid rgba(30, 91, 62, 0.8);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--moss);
}

.footer-meta__group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 18px;
}

.footer-copy { color: var(--silver); }
.footer-icp { color: var(--silver); }

.footer-signoff { color: var(--gold); }

/* ---------- 10. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border: 1px solid var(--green-line);
  border-radius: var(--radius);
  background: transparent;
  color: var(--paper);
  font-size: 14px;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: background-color 0.18s var(--ease), color 0.18s var(--ease), border-color 0.18s var(--ease), transform 0.18s var(--ease);
}

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

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

.btn--primary {
  background: var(--lemon);
  border-color: var(--lemon);
  color: var(--ink);
  font-weight: 700;
}

.btn--primary:hover {
  background: #DCFF7A;
  border-color: #DCFF7A;
  color: var(--ink);
}

.btn--ghost {
  border-color: rgba(199, 211, 206, 0.4);
  color: var(--silver);
}

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

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

.btn--gold:hover {
  background: rgba(216, 166, 42, 0.12);
  color: var(--gold);
}

/* ---------- 11. 面包屑 ---------- */
.breadcrumb {
  padding-block: 14px;
  border-bottom: 1px solid rgba(30, 91, 62, 0.6);
}

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--moss);
}

.breadcrumb__item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb__link {
  color: var(--silver);
  border-bottom: 1px solid transparent;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.breadcrumb__link:hover {
  color: var(--lemon);
  border-bottom-color: var(--lemon);
}

.breadcrumb__sep { color: rgba(134, 148, 140, 0.6); }

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

/* ---------- 12. 画板 / 堆叠 / 网格 ---------- */
.panel {
  position: relative;
  padding: clamp(20px, 3vw, 36px);
  background: var(--bg-panel);
  border: var(--border);
  box-shadow: var(--shadow-panel);
}

.panel::before {
  content: "";
  position: absolute;
  inset: 6px;
  border: 1px solid rgba(201, 255, 61, 0.12);
  pointer-events: none;
}

.panel__label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--lemon);
}

.panel__label::after {
  content: "";
  flex: 1;
  height: 1px;
  background: rgba(30, 91, 62, 0.85);
}

.panel__title {
  margin-top: 12px;
  font-size: clamp(26px, 3.4vw, 40px);
}

.panel__body {
  margin-top: 14px;
  max-width: 64ch;
  color: var(--silver);
}

.panel--paper {
  background: var(--paper);
  border-color: rgba(20, 24, 26, 0.16);
  color: var(--ink);
}

.panel--paper .panel__body { color: #3D4A44; }
.panel--paper .panel__label { color: #5D6B62; }
.panel--paper .panel__label::after { background: rgba(20, 24, 26, 0.2); }

.deck {
  display: grid;
  gap: clamp(18px, 3vw, 34px);
}

.deck > * { position: relative; }

.deck--offset > *:nth-child(1) { z-index: 3; }
.deck--offset > *:nth-child(2) { z-index: 2; }
.deck--offset > *:nth-child(3) { z-index: 1; }

.deck--offset > * + * { margin-top: -14px; }

.deck--offset > *:nth-child(2) { margin-inline-start: clamp(0px, 2.5vw, 36px); }

.grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 28px);
}

.grid--2,
.grid--3 { grid-template-columns: minmax(0, 1fr); }

.grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.grid12 {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(14px, 2vw, 26px);
}

.col-4, .col-6, .col-8, .col-12 { grid-column: span 4; }

/* ---------- 13. 排版辅助 ---------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--lemon);
}

.h-display {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(72px, 16vw, 200px);
  line-height: 0.86;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.h-section {
  font-family: var(--font-serif);
  font-size: clamp(28px, 5vw, 56px);
  line-height: 1.12;
}

.lead {
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.7;
  color: var(--silver);
  max-width: 62ch;
}

.body-text {
  font-size: 17px;
  line-height: 1.8;
  color: var(--silver);
  max-width: 68ch;
}

.section--paper .body-text { color: #3D4A44; }

/* ---------- 14. 数据元件 ---------- */
.stat {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.stat__value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(36px, 6vw, 64px);
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.stat__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--moss);
}

.stat--lemon .stat__value { color: var(--lemon); }
.stat--gold .stat__value { color: var(--gold); }
.stat--red .stat__value { color: var(--red); }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border: 1px solid var(--green-line);
  background: rgba(199, 211, 206, 0.05);
  color: var(--silver);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  white-space: nowrap;
}

.tag--lemon { border-color: rgba(201, 255, 61, 0.55); color: var(--lemon); }
.tag--gold { border-color: rgba(216, 166, 42, 0.6); color: var(--gold); }
.tag--red { border-color: rgba(224, 67, 47, 0.6); color: var(--red); }
.tag--silver { border-color: rgba(199, 211, 206, 0.35); color: var(--silver); }

.note {
  position: relative;
  padding-left: 16px;
  border-left: 2px solid var(--green-line);
  font-size: 14px;
  line-height: 1.75;
  color: var(--moss);
}

.note__mark {
  margin-right: 6px;
  font-family: var(--font-mono);
  color: var(--lemon);
}

.note--paper {
  color: #4A5A52;
  border-left-color: rgba(20, 24, 26, 0.25);
}

.note--paper .note__mark { color: #8A6A12; }

.rule {
  height: 0;
  margin-block: clamp(20px, 3vw, 36px);
  border: 0;
  border-top: 1px solid var(--green-line);
}

.rule--dashed { border-top: 1px dashed rgba(30, 91, 62, 0.95); }

.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.data-table {
  width: 100%;
  min-width: 520px;
  font-size: 14px;
}

.data-table caption {
  padding-bottom: 12px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--moss);
}

.data-table th,
.data-table td {
  padding: 10px 12px;
  border-bottom: 1px solid rgba(30, 91, 62, 0.7);
  text-align: left;
  vertical-align: top;
}

.data-table thead th {
  border-bottom-color: var(--green-line);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--moss);
}

.data-table td.num {
  font-family: var(--font-mono);
  font-size: 15px;
  text-align: right;
  color: var(--paper);
}

/* ---------- 15. 图像容器基础规则 ---------- */
.media {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--green-line);
  background: linear-gradient(160deg, var(--green-stand) 0%, #0D3324 100%);
}

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

.media__frame {
  position: absolute;
  inset: 0;
  z-index: 2;
  border: 1px solid rgba(201, 255, 61, 0.18);
  pointer-events: none;
}

.media__caption {
  position: absolute;
  inset: auto 0 0 0;
  z-index: 3;
  padding: 10px 14px;
  background: linear-gradient(0deg, rgba(11, 43, 30, 0.94) 0%, rgba(11, 43, 30, 0) 100%);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--silver);
}

.media__placeholder {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(199, 211, 206, 0.55);
  text-align: center;
}

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

.media--tactical {
  background-image:
    linear-gradient(rgba(201, 255, 61, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201, 255, 61, 0.08) 1px, transparent 1px),
    linear-gradient(160deg, var(--green-stand) 0%, #0D3324 100%);
  background-size: 44px 44px, 44px 44px, 100% 100%;
}

.media--glass {
  border-color: rgba(199, 211, 206, 0.35);
  background: linear-gradient(135deg, rgba(199, 211, 206, 0.28) 0%, rgba(199, 211, 206, 0.05) 100%);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}

/* ---------- 16. 标签页 / 分段控件 ---------- */
.tabs { position: relative; }

.tabs__list {
  display: flex;
  flex-wrap: nowrap;
  overflow-x: auto;
  border-bottom: 1px solid var(--green-line);
}

.tabs__tab {
  padding: 10px 16px;
  border: 1px solid transparent;
  border-bottom: 0;
  background: transparent;
  color: var(--moss);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  white-space: nowrap;
  cursor: pointer;
  transition: color 0.18s var(--ease), background-color 0.18s var(--ease);
}

.tabs__tab:hover { color: var(--paper); }

.tabs__tab[aria-selected="true"] {
  background: var(--lemon);
  border-color: var(--lemon);
  color: var(--ink);
  font-weight: 700;
}

.tabs__panel { padding-top: 20px; }

.tabs__panel[hidden] { display: none; }

/* ---------- 17. 显现动效 ---------- */
.has-js [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.38s var(--ease), transform 0.38s var(--ease);
}

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

/* ---------- 18. 工具类 ---------- */
.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;
}

/* ---------- 19. 平板 ---------- */
@media (min-width: 720px) {
  .grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid12 { grid-template-columns: repeat(8, minmax(0, 1fr)); }
  .col-4 { grid-column: span 4; }
  .col-6 { grid-column: span 4; }
  .col-8 { grid-column: span 8; }
  .col-12 { grid-column: span 8; }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* ---------- 20. 桌面 ---------- */
@media (min-width: 1024px) {
  .frame-rail { display: block; }
  .frame-ticker { display: block; }
  .nav-toggle { display: none; }

  .site-nav {
    display: block;
    border-top: 1px solid rgba(30, 91, 62, 0.6);
    background: transparent;
  }

  .site-nav__inner {
    display: flex;
    align-items: center;
    gap: 18px;
    padding-block: 0;
  }

  .site-nav__label {
    padding: 10px 14px 10px 0;
    border-right: 1px solid rgba(30, 91, 62, 0.7);
    white-space: nowrap;
  }

  .site-nav__list {
    flex-direction: row;
    flex-wrap: wrap;
    margin-top: 0;
  }

  .site-nav__item {
    border-top: 0;
    border-left: 1px solid rgba(30, 91, 62, 0.55);
  }

  .site-nav__item:last-child { border-right: 1px solid rgba(30, 91, 62, 0.55); }

  .site-nav__link {
    padding: 11px 18px;
    font-size: 14px;
    letter-spacing: 0.06em;
  }

  .site-nav__link[aria-current="page"] {
    box-shadow: inset 0 -3px 0 var(--lemon);
    background: rgba(201, 255, 61, 0.07);
  }

  .site-nav__note { display: block; }

  .grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

  .grid12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }
  .col-4 { grid-column: span 4; }
  .col-6 { grid-column: span 6; }
  .col-8 { grid-column: span 8; }
  .col-12 { grid-column: span 12; }

  .footer-grid { grid-template-columns: repeat(3, minmax(0, 1fr)) 1.3fr; }

  .deck--offset > * + * { margin-top: -24px; }
}

/* ---------- 21. 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .has-js [data-reveal],
  .has-js [data-reveal].is-visible {
    opacity: 1 !important;
    transform: none !important;
  }

  .frame-progress__bar { transition: none !important; }
}