/* ============================================================
   麻将胡了试玩 · 中文站
   /assets/site.css — 共享外壳：重置、变量、头部、页脚、基础组件
   ============================================================ */

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

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

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

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

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

button, input, select, textarea { font: inherit; color: inherit; }

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

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

:target { scroll-margin-top: 148px; }

/* ---------- 2. Variables ---------- */
:root {
  /* 牌桌色 */
  --ink: #0C1714;
  --felt: #10241D;
  --jade: #2FBF8F;
  --jade-deep: #14805F;
  --ivory: #F4F0E6;
  --ivory-soft: #DCD4C2;
  --gold: #E8B44A;
  --dice: #D9453D;
  --mist: #93ABA2;
  --line: #274036;

  /* 浅色面板 */
  --panel: #F4F0E6;
  --panel-2: #EDE7D9;
  --panel-line: #C9C0AC;
  --panel-text: #14231D;
  --panel-mist: #5C6B63;

  /* 形状 */
  --r-s: 4px;
  --r-m: 8px;

  /* 网格 */
  --shell: 1280px;
  --gap: 24px;

  /* 动效 */
  --dur-hover: 140ms;
  --dur-switch: 220ms;
  --ease: cubic-bezier(.22, .61, .36, 1);

  /* 字体 */
  --font-display: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
  --font-sans: "HarmonyOS Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, "SFMono-Regular", Consolas, monospace;
}

/* ---------- 3. Base ---------- */
body {
  background-color: var(--ink);
  background-image:
    radial-gradient(70% 55% at 90% -10%, rgba(47, 191, 143, .10), transparent 62%),
    radial-gradient(50% 40% at 4% 4%, rgba(232, 180, 74, .06), transparent 60%);
  background-repeat: no-repeat;
  color: var(--ivory);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: .01em;
  min-height: 100vh;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -.01em;
}

.mono { font-family: var(--font-mono); font-variant-ligatures: none; }

::selection { background: var(--jade); color: #08150F; }

:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
  border-radius: var(--r-s);
}

/* ---------- 4. 布局容器 ---------- */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: clamp(16px, 3vw, 24px);
}

.section { padding-block: clamp(44px, 6.5vw, 88px); }

.grid12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gap);
}

.span-3 { grid-column: span 3; }
.span-4 { grid-column: span 4; }
.span-5 { grid-column: span 5; }
.span-6 { grid-column: span 6; }
.span-7 { grid-column: span 7; }
.span-8 { grid-column: span 8; }
.span-9 { grid-column: span 9; }
.span-12 { grid-column: span 12; }
.start-2 { grid-column-start: 2; }
.start-5 { grid-column-start: 5; }
.start-6 { grid-column-start: 6; }
.start-7 { grid-column-start: 7; }

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

/* ---------- 5. 区块开场 ---------- */
.section-head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 8px 16px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  margin-bottom: clamp(20px, 3vw, 36px);
}

.marker {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  line-height: 1;
  color: var(--ink);
  background: var(--jade);
  border-radius: var(--r-s);
  padding: 6px 9px;
  letter-spacing: 0;
}

.eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .18em;
  color: var(--mist);
}

.section-title {
  font-size: clamp(26px, 3.4vw, 40px);
  margin: 0;
}

.section-note {
  margin-left: auto;
  max-width: 34ch;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 6. 排版 ---------- */
.prose {
  max-width: 68ch;
  color: var(--ivory-soft);
  font-size: 16px;
  line-height: 1.8;
}

.prose > * + * { margin-top: 1.1em; }
.prose h2, .prose h3 { color: var(--ivory); margin-top: 1.8em; }
.prose h2 { font-size: clamp(22px, 2.4vw, 30px); }
.prose h3 { font-size: 19px; }
.prose strong { color: var(--ivory); font-weight: 600; }
.prose a {
  color: var(--jade);
  border-bottom: 1px solid rgba(47, 191, 143, .45);
}
.prose a:hover { color: var(--ivory); border-bottom-color: var(--gold); }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose ul { list-style: square; }
.prose ol { list-style: decimal; }
.prose li + li { margin-top: .4em; }
.prose li::marker { color: var(--jade); }

.lede {
  max-width: 62ch;
  font-size: clamp(16px, 1.4vw, 18px);
  line-height: 1.8;
  color: var(--ivory-soft);
}

.aside-note {
  border-left: 2px solid var(--gold);
  padding: 4px 0 4px 14px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 7. 跳过链接 ---------- */
.skip-link {
  position: absolute;
  top: 0;
  left: -9999px;
  z-index: 300;
  background: var(--gold);
  color: #1A1305;
  font-size: 14px;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: 0 0 var(--r-m) 0;
}

.skip-link:focus,
.skip-link:focus-visible {
  left: 0;
  outline: 2px solid var(--ivory);
  outline-offset: 2px;
}

/* ---------- 8. 牌面徽标 ---------- */
.tile {
  display: grid;
  place-items: center;
  width: 44px;
  height: 60px;
  flex: 0 0 auto;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 20px;
  line-height: 1;
  color: #10241D;
  background: linear-gradient(180deg, #F8F4EA 0%, #DCD4C2 100%);
  border: 1px solid var(--panel-line);
  border-radius: 6px;
  box-shadow: inset 0 -4px 0 rgba(20, 128, 95, .28), 0 1px 0 rgba(0, 0, 0, .45);
}

.tile--sm {
  width: 30px;
  height: 40px;
  font-size: 14px;
  border-radius: var(--r-s);
  box-shadow: inset 0 -3px 0 rgba(20, 128, 95, .28), 0 1px 0 rgba(0, 0, 0, .45);
}

.tile--jade {
  background: linear-gradient(180deg, #3FCB99 0%, #14805F 100%);
  border-color: var(--jade-deep);
  color: #05221A;
  box-shadow: inset 0 -4px 0 rgba(5, 32, 25, .35), 0 1px 0 rgba(0, 0, 0, .45);
}

.tile--gold {
  background: linear-gradient(180deg, #F2CE78 0%, #E8B44A 100%);
  border-color: #C89A34;
  color: #3A2A05;
  box-shadow: inset 0 -4px 0 rgba(58, 42, 5, .3), 0 1px 0 rgba(0, 0, 0, .45);
}

.tile--red {
  background: linear-gradient(180deg, #E8625A 0%, #D9453D 100%);
  border-color: #A93229;
  color: #FFF3EC;
  box-shadow: inset 0 -4px 0 rgba(50, 8, 5, .35), 0 1px 0 rgba(0, 0, 0, .45);
}

/* ---------- 9. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 16px;
  border: 1px solid transparent;
  border-radius: var(--r-s);
  background: transparent;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: .02em;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color var(--dur-hover) var(--ease),
              color var(--dur-hover) var(--ease),
              border-color var(--dur-hover) var(--ease);
}

.btn--primary {
  background: var(--jade);
  border-color: var(--jade);
  color: #08150F;
}

.btn--primary:hover {
  background: var(--jade-deep);
  border-color: var(--gold);
  color: var(--ivory);
}

.btn--ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--ivory);
}

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

.btn--gold {
  background: transparent;
  border-color: rgba(232, 180, 74, .5);
  color: var(--gold);
}

.btn--gold:hover {
  background: rgba(232, 180, 74, .12);
  border-color: var(--gold);
}

.btn--sm { padding: 7px 12px; font-size: 13px; }
.btn--block { width: 100%; }

.link-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--jade);
  transition: color var(--dur-hover) var(--ease);
}

.link-more:hover { color: var(--gold); }

/* ---------- 10. 头部 / 命令栏 ---------- */
.masthead {
  position: sticky;
  top: 0;
  z-index: 120;
  background-color: #0E1D18;
  background-image: radial-gradient(58% 180% at 4% 0%, rgba(47, 191, 143, .15), transparent 62%);
  background-repeat: no-repeat;
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
  transition: border-color var(--dur-switch) var(--ease),
              background-color var(--dur-switch) var(--ease);
}

.masthead[data-condensed] {
  border-bottom-color: var(--jade-deep);
  background-color: #0B1814;
}

.masthead__inner { padding-top: 12px; }

.masthead__top {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 14px;
  padding-bottom: 10px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand__text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.brand__name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  line-height: 1.15;
  letter-spacing: -.01em;
  color: var(--ivory);
  transition: color var(--dur-hover) var(--ease);
}

.brand:hover .brand__name { color: var(--jade); }

.brand__sub {
  margin-top: 2px;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--mist);
  white-space: nowrap;
}

.version-chip {
  padding: 4px 10px;
  border: 1px solid rgba(232, 180, 74, .38);
  border-radius: 999px;
  background: rgba(232, 180, 74, .08);
  font-size: 12px;
  line-height: 1.5;
  letter-spacing: .04em;
  color: var(--gold);
  white-space: nowrap;
}

.masthead__cta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: var(--r-s);
  background: transparent;
  font-size: 13px;
  font-weight: 600;
  color: var(--ivory);
  cursor: pointer;
  transition: border-color var(--dur-hover) var(--ease), color var(--dur-hover) var(--ease);
}

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

.nav-toggle__box {
  display: inline-grid;
  gap: 3px;
  width: 16px;
}

.nav-toggle__box span {
  display: block;
  height: 2px;
  border-radius: 1px;
  background: currentColor;
  transition: transform var(--dur-hover) var(--ease), opacity var(--dur-hover) var(--ease);
}

.masthead[data-open] .nav-toggle { border-color: var(--jade-deep); color: var(--jade); }
.masthead[data-open] .nav-toggle__box span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.masthead[data-open] .nav-toggle__box span:nth-child(2) { opacity: 0; }
.masthead[data-open] .nav-toggle__box span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

.cmdbar {
  display: flex;
  align-items: stretch;
  gap: 16px;
  border-top: 1px solid var(--line);
}

.cmdbar__nav {
  display: block;
  flex: 1 1 auto;
  min-width: 0;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: thin;
  scrollbar-color: var(--line) transparent;
}

.cmdbar__nav::-webkit-scrollbar { height: 4px; }
.cmdbar__nav::-webkit-scrollbar-thumb { background: var(--line); border-radius: 2px; }

.nav-list {
  display: flex;
  align-items: stretch;
  gap: 2px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px 14px;
  border-left: 2px solid transparent;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .01em;
  color: var(--ivory-soft);
  white-space: nowrap;
  transition: color var(--dur-hover) var(--ease),
              background-color var(--dur-hover) var(--ease),
              border-color var(--dur-hover) var(--ease);
}

.nav-link__idx {
  font-family: var(--font-mono);
  font-size: 11px;
  opacity: .62;
}

.nav-link:hover {
  color: var(--ivory);
  background: rgba(47, 191, 143, .09);
  border-left-color: var(--jade-deep);
}

.nav-link[aria-current="page"] {
  color: #08150F;
  background: var(--jade);
  border-left-color: var(--gold);
}

.nav-link[aria-current="page"] .nav-link__idx { opacity: .85; }

.cmdbar__utility {
  display: flex;
  align-items: center;
  flex: 0 0 auto;
  border-left: 1px solid var(--line);
}

.util-link {
  padding: 11px 12px;
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--mist);
  white-space: nowrap;
  transition: color var(--dur-hover) var(--ease), background-color var(--dur-hover) var(--ease);
}

.util-link:hover {
  color: var(--jade);
  background: rgba(47, 191, 143, .08);
}

.masthead__progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: rgba(39, 64, 54, .6);
}

.masthead__progress-bar {
  display: block;
  height: 100%;
  width: 100%;
  transform: scaleX(0);
  transform-origin: left center;
  background: linear-gradient(90deg, var(--jade) 0%, var(--gold) 100%);
  transition: transform 120ms linear;
}

/* ---------- 11. 页脚 ---------- */
.site-foot {
  position: relative;
  margin-top: clamp(48px, 8vw, 112px);
  background: linear-gradient(180deg, #0C1714 0%, #0A1211 100%);
  border-top: 1px solid var(--line);
  overflow: hidden;
}

.site-foot::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(110% 70% at 10% 0%, rgba(47, 191, 143, .10), transparent 60%),
    radial-gradient(70% 55% at 92% 8%, rgba(232, 180, 74, .07), transparent 64%);
}

.foot__inner {
  position: relative;
  z-index: 1;
  padding-block: clamp(40px, 5vw, 60px) 26px;
}

.foot__top {
  display: grid;
  grid-template-columns: 1.5fr .9fr .9fr 1.25fr;
  gap: clamp(24px, 4vw, 48px);
}

.foot__tiles {
  display: flex;
  gap: 6px;
  margin-bottom: 16px;
}

.foot__brandname {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 20px;
  color: var(--ivory);
}

.foot__tagline {
  margin-top: 8px;
  max-width: 34ch;
  font-size: 13px;
  line-height: 1.75;
  color: var(--mist);
}

.foot__title {
  position: relative;
  margin-bottom: 14px;
  padding-left: 14px;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--ivory-soft);
}

.foot__title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 4px;
  height: 4px;
  margin-top: -2px;
  border-radius: 1px;
  background: var(--jade);
}

.foot__list { display: grid; gap: 2px; }

.foot-link {
  display: inline-block;
  padding: 5px 0;
  font-size: 14px;
  color: var(--ivory-soft);
  border-bottom: 1px solid transparent;
  transition: color var(--dur-hover) var(--ease), border-color var(--dur-hover) var(--ease);
}

.foot-link:hover {
  color: var(--jade);
  border-bottom-color: var(--jade-deep);
}

.foot__contact { display: grid; gap: 10px; }

.contact-line {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  font-size: 13px;
}

.contact-line__key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--mist);
}

.contact-line__val {
  color: var(--ivory-soft);
  word-break: break-word;
}

.foot__note {
  margin-top: clamp(28px, 4vw, 40px);
  padding-top: 20px;
  border-top: 1px solid var(--line);
  max-width: 80ch;
  font-size: 13px;
  line-height: 1.85;
  color: var(--mist);
}

.foot__legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.foot__legal-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
}

.legal-link {
  font-size: 13px;
  color: var(--mist);
  transition: color var(--dur-hover) var(--ease);
}

.legal-link:hover { color: var(--jade); }

.foot__icp {
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--mist);
}

.foot__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 6px 20px;
  margin-top: 14px;
}

.foot__copy,
.foot__disclaimer {
  font-size: 12px;
  line-height: 1.7;
  color: #6E837B;
}

/* ---------- 12. 面包屑与页面头 ---------- */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-block: 20px;
  font-size: 13px;
  color: var(--mist);
}

.breadcrumbs a {
  color: var(--mist);
  transition: color var(--dur-hover) var(--ease);
}

.breadcrumbs a:hover { color: var(--jade); }

.breadcrumbs__sep {
  color: var(--line);
  font-family: var(--font-mono);
}

.breadcrumbs [aria-current="page"] { color: var(--ivory-soft); }

.page-head { padding-block: clamp(20px, 3vw, 36px) clamp(24px, 3.5vw, 48px); }

.page-title {
  font-size: clamp(34px, 6vw, 72px);
  letter-spacing: -.015em;
}

.page-lede {
  margin-top: 16px;
  max-width: 58ch;
  font-size: clamp(15px, 1.3vw, 17px);
  color: var(--ivory-soft);
}

/* ---------- 13. 卡片 / 标签 / 数据 ---------- */
.card {
  display: block;
  height: 100%;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  background: var(--felt);
  color: var(--ivory-soft);
  transition: transform var(--dur-hover) var(--ease),
              border-color var(--dur-hover) var(--ease),
              background-color var(--dur-hover) var(--ease);
}

a.card:hover,
.card:hover {
  transform: translateY(-2px);
  border-color: var(--jade-deep);
  background: #122A22;
}

.card__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 12px;
}

.card__title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  line-height: 1.35;
  color: var(--ivory);
}

.card__meta {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--gold);
}

.card__body {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ivory-soft);
}

.card--jade { border-left: 2px solid var(--jade); }
.card--gold { border-left: 2px solid var(--gold); }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: .02em;
  color: var(--mist);
}

.chip--jade { color: var(--jade); border-color: rgba(47, 191, 143, .42); background: rgba(47, 191, 143, .08); }
.chip--gold { color: var(--gold); border-color: rgba(232, 180, 74, .42); background: rgba(232, 180, 74, .08); }
.chip--red  { color: var(--dice); border-color: rgba(217, 69, 61, .45); background: rgba(217, 69, 61, .1); }

.stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(148px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  overflow: hidden;
}

.stat {
  background: var(--felt);
  padding: 16px;
}

.stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1.2;
  color: var(--jade);
}

.stat__label {
  margin-top: 4px;
  font-size: 13px;
  color: var(--mist);
}

/* ---------- 14. 索引列表 ---------- */
.index-list { border-top: 1px solid var(--line); }

.index-list__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: baseline;
  padding: 12px 6px;
  border-bottom: 1px solid var(--line);
  transition: background-color var(--dur-hover) var(--ease);
}

.index-list__item:hover { background: rgba(47, 191, 143, .07); }

.index-list__item[hidden] { display: none; }

.index-list__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--jade);
}

.index-list__label {
  font-size: 15px;
  color: var(--ivory);
}

a.index-list__label { color: var(--ivory-soft); transition: color var(--dur-hover) var(--ease); }
a.index-list__label:hover { color: var(--jade); }

.index-list__meta {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--mist);
  white-space: nowrap;
}

/* ---------- 15. 时间轴 ---------- */
.timeline {
  position: relative;
  padding-left: 22px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: var(--line);
}

.timeline__item {
  position: relative;
  padding-bottom: 26px;
}

.timeline__item:last-child { padding-bottom: 0; }

.timeline__item::before {
  content: "";
  position: absolute;
  left: -22px;
  top: 7px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--felt);
  border: 2px solid var(--jade);
}

.timeline__item[data-state="milestone"]::before { border-color: var(--gold); }
.timeline__item[data-state="alert"]::before { border-color: var(--dice); }

.timeline__time {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--gold);
}

.timeline__title {
  margin: 4px 0 6px;
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--ivory);
}

.timeline__text {
  font-size: 14px;
  line-height: 1.75;
  color: var(--ivory-soft);
}

/* ---------- 16. 表格 ---------- */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--r-m);
}

.table {
  min-width: 560px;
  font-size: 14px;
}

.table caption {
  padding: 12px 14px;
  text-align: left;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--mist);
}

.table th {
  padding: 12px 14px;
  text-align: left;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--mist);
  background: rgba(16, 36, 29, .9);
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

.table td {
  padding: 12px 14px;
  border-top: 1px solid var(--line);
  color: var(--ivory-soft);
  vertical-align: top;
}

.table tbody tr { transition: background-color var(--dur-hover) var(--ease); }
.table tbody tr:hover { background: rgba(47, 191, 143, .07); }
.table tbody tr[data-expand] { cursor: pointer; }
.table .mono { color: var(--gold); }

/* ---------- 17. 图片容器 ---------- */
.media-frame {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  background-color: var(--felt);
  background-image:
    linear-gradient(140deg, rgba(47, 191, 143, .16), transparent 55%),
    repeating-linear-gradient(135deg, rgba(39, 64, 54, .55) 0 2px, transparent 2px 12px);
}

.media-frame > img,
.media-frame > svg,
.media-frame > picture {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame--tile { aspect-ratio: 3 / 4; }
.media-frame--square { aspect-ratio: 1 / 1; }
.media-frame--wide { aspect-ratio: 16 / 9; }

.media-frame__label {
  position: absolute;
  left: 12px;
  bottom: 12px;
  z-index: 1;
  padding: 4px 8px;
  border: 1px solid var(--line);
  border-radius: var(--r-s);
  background: rgba(12, 23, 20, .78);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--ivory-soft);
}

/* ---------- 18. 浅色面板 ---------- */
.panel-light {
  background: var(--panel);
  color: var(--panel-text);
  border-block: 1px solid var(--panel-line);
}

.panel-light .section-head,
.panel-light .rule { border-color: var(--panel-line); background-color: var(--panel-line); }
.panel-light .section-head { border-top-color: var(--panel-line); }
.panel-light .eyebrow,
.panel-light .section-note,
.panel-light .lede,
.panel-light .card__body { color: var(--panel-mist); }
.panel-light .section-title,
.panel-light .card__title { color: #10241D; }
.panel-light .prose { color: #24352D; }
.panel-light .prose h2,
.panel-light .prose h3,
.panel-light .prose strong { color: #10241D; }
.panel-light .prose a { color: var(--jade-deep); border-bottom-color: rgba(20, 128, 95, .4); }
.panel-light .card {
  background: var(--panel-2);
  border-color: var(--panel-line);
  color: #24352D;
}
.panel-light a.card:hover,
.panel-light .card:hover { background: #E5DECD; border-color: var(--jade-deep); }
.panel-light .index-list,
.panel-light .index-list__item { border-color: var(--panel-line); }
.panel-light .index-list__label,
.panel-light a.index-list__label { color: #24352D; }
.panel-light .index-list__item:hover { background: rgba(20, 128, 95, .08); }
.panel-light .stat-row { background: var(--panel-line); border-color: var(--panel-line); }
.panel-light .stat { background: var(--panel-2); }
.panel-light .stat__num { color: var(--jade-deep); }
.panel-light .stat__label { color: var(--panel-mist); }
.panel-light .chip { border-color: var(--panel-line); color: var(--panel-mist); }

/* ---------- 19. 响应式 ---------- */
@media (max-width: 899px) {
  .grid12 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .grid12 > * { grid-column: 1 / -1; }

  .section-note { margin-left: 0; max-width: none; }

  .masthead__cta { display: none; }

  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .cmdbar {
    flex-direction: column;
    gap: 0;
    border-top: 1px solid var(--line);
  }

  .cmdbar__nav {
    display: none;
    overflow: visible;
  }

  .masthead[data-open] .cmdbar__nav {
    display: block;
    animation: navpanel var(--dur-switch) var(--ease) both;
  }

  .nav-list {
    flex-direction: column;
    gap: 0;
    padding-block: 4px;
  }

  .nav-link {
    padding: 13px 16px;
    border-left-width: 2px;
    border-bottom: 1px solid var(--line);
  }

  .nav-list__item:last-child .nav-link { border-bottom: 0; }

  .cmdbar__utility {
    border-left: 0;
    border-top: 1px solid var(--line);
    padding-block: 4px;
    overflow-x: auto;
  }

  .foot__top { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .foot__brand { grid-column: 1 / -1; }
  .foot__col--contact { grid-column: 1 / -1; }
}

@keyframes navpanel {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 599px) {
  .brand__sub { display: none; }
  .foot__top { grid-template-columns: minmax(0, 1fr); }
  .foot__brand,
  .foot__col--contact { grid-column: auto; }
  .foot__legal { flex-direction: column; align-items: flex-start; }
  .index-list__item { grid-template-columns: auto minmax(0, 1fr); }
  .index-list__meta { grid-column: 2; }
}

@media (min-width: 900px) {
  .page-title { line-height: 1.05; }
}

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

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

  a.card:hover,
  .card:hover { transform: none; }
}