/* ============================================================
   金多宝体育 · 共享样式 /assets/site.css
   分区：1 reset · 2 变量 · 3 基础排版 · 4 外壳头部 · 5 外壳页脚
        6 通用按钮与标签 · 7 卡片与纸张 · 8 图片容器 · 9 布局工具
       10 响应式 · 11 动效偏好
   ============================================================ */

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

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

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

hr { border: 0; }

/* ---------- 2 变量 ---------- */
:root {
  /* 色板 */
  --ink-950: #05130F;
  --pitch-900: #0B241C;
  --tactical-800: #12362B;
  --field-700: #1E4A3C;
  --gold-500: #D6A13F;
  --orange-500: #E07A4A;
  --paper-200: #F1E8D8;
  --text-primary: #E9F0EA;
  --text-secondary: #B7C8C9;
  --steel-500: #7E9AA4;
  --focus-400: #8ED4D8;

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

  /* 结构性线条 */
  --line-soft: rgba(126, 154, 164, 0.26);
  --line-strong: rgba(126, 154, 164, 0.44);
  --line-gold: rgba(214, 161, 63, 0.48);
  --sheet-veil: rgba(241, 232, 216, 0.06);

  /* 节奏 */
  --wrap-max: 1180px;
  --pad-inline: clamp(16px, 4vw, 32px);
  --radius-s: 4px;
  --radius-m: 14px;
  --radius-l: 20px;
  --ease: 180ms ease-out;
}

/* ---------- 3 基础排版 ---------- */
body {
  min-height: 100vh;
  background:
    radial-gradient(120% 78% at 8% -12%, rgba(30, 74, 60, 0.55), transparent 62%),
    radial-gradient(90% 62% at 96% 2%, rgba(214, 161, 63, 0.10), transparent 64%),
    var(--ink-950);
  color: var(--text-primary);
  font-family: var(--font-text);
  font-size: clamp(15px, 1.05vw, 17px);
  line-height: 1.78;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.24;
  letter-spacing: -0.015em;
  color: var(--text-primary);
}

p { color: inherit; }

::selection {
  background: rgba(214, 161, 63, 0.34);
  color: var(--paper-200);
}

:focus-visible {
  outline: 2px solid var(--focus-400);
  outline-offset: 3px;
  border-radius: 6px;
}

#main-content:focus-visible {
  outline: 2px solid var(--focus-400);
  outline-offset: 10px;
}

.skip-link {
  position: fixed;
  top: -80px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 300;
  padding: 10px 20px;
  border-radius: 999px;
  border: 1px solid var(--gold-500);
  background: var(--paper-200);
  color: var(--ink-950);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  transition: top var(--ease);
}

.skip-link:focus,
.skip-link:focus-visible {
  top: 14px;
  outline: 2px solid var(--focus-400);
  outline-offset: 3px;
}

/* ---------- 4 外壳头部 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  padding: 14px var(--pad-inline) 0;
  background: linear-gradient(180deg, rgba(5, 19, 15, 0.97) 0%, rgba(5, 19, 15, 0.82) 60%, rgba(5, 19, 15, 0) 100%);
}

.header-inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.8vw, 22px);
  width: 100%;
  max-width: var(--wrap-max);
  margin: 0 auto;
  padding: 9px 12px 9px 18px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: linear-gradient(118deg, rgba(18, 54, 43, 0.94), rgba(11, 36, 28, 0.96));
  box-shadow:
    0 18px 40px -30px rgba(0, 0, 0, 0.95),
    inset 0 1px 0 rgba(241, 232, 216, 0.08);
  transition: box-shadow var(--ease), border-color var(--ease), background var(--ease);
}

.site-header[data-scrolled="true"] .header-inner {
  border-color: var(--line-gold);
  box-shadow:
    0 22px 44px -28px rgba(0, 0, 0, 1),
    inset 0 1px 0 rgba(241, 232, 216, 0.12);
}

/* 品牌 */
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 1 auto;
  min-width: 0;
}

.brand-mark {
  position: relative;
  display: block;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  border: 1px solid var(--gold-500);
  border-radius: 6px;
  background: linear-gradient(140deg, rgba(214, 161, 63, 0.22), rgba(224, 122, 74, 0.10));
  transition: border-color var(--ease), background var(--ease);
}

.brand-mark::before {
  content: "";
  position: absolute;
  inset: 6px;
  background: var(--gold-500);
  transform: rotate(45deg);
  transition: background var(--ease);
}

.brand:hover .brand-mark {
  border-color: var(--orange-500);
  background: linear-gradient(140deg, rgba(224, 122, 74, 0.28), rgba(214, 161, 63, 0.14));
}

.brand:hover .brand-mark::before { background: var(--orange-500); }

.brand-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
  line-height: 1.16;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  letter-spacing: 0.06em;
  color: var(--text-primary);
  white-space: nowrap;
}

.brand-descriptor {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--steel-500);
  white-space: nowrap;
}

/* 导航 */
.site-nav {
  display: flex;
  margin-left: auto;
  min-width: 0;
}

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

.nav-item { position: relative; }

.nav-link {
  position: relative;
  display: block;
  padding: 8px 13px;
  border-radius: 999px;
  border: 1px solid transparent;
  color: var(--text-secondary);
  font-size: 14.5px;
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition: color var(--ease), background var(--ease), border-color var(--ease);
}

.nav-link:hover {
  color: var(--text-primary);
  background: rgba(30, 74, 60, 0.78);
  border-color: var(--line-soft);
}

.nav-link[aria-current="page"] {
  color: var(--gold-500);
  background: rgba(214, 161, 63, 0.12);
  border-color: var(--line-gold);
}

.nav-link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 2px;
  width: 4px;
  height: 4px;
  margin-left: -2px;
  background: var(--gold-500);
  transform: rotate(45deg);
}

/* 头部动作 */
.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.header-cta {
  display: inline-block;
  padding: 9px 16px;
  border-radius: 999px;
  border: 1px solid var(--line-gold);
  background: rgba(214, 161, 63, 0.10);
  color: var(--gold-500);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.10em;
  white-space: nowrap;
  transition: background var(--ease), color var(--ease), border-color var(--ease);
}

.header-cta:hover {
  background: var(--gold-500);
  border-color: var(--gold-500);
  color: var(--ink-950);
}

/* 移动导航按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 9px 14px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: var(--sheet-veil);
  color: var(--text-primary);
  cursor: pointer;
  transition: border-color var(--ease), color var(--ease), background var(--ease);
}

.nav-toggle:hover {
  border-color: var(--gold-500);
  color: var(--gold-500);
}

.nav-toggle-text {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
}

.nav-toggle-bars {
  position: relative;
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
  transition: background var(--ease);
}

.nav-toggle-bars::before,
.nav-toggle-bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: currentColor;
  transition: top var(--ease), transform var(--ease);
}

.nav-toggle-bars::before { top: -6px; }
.nav-toggle-bars::after { top: 6px; }

.nav-toggle[aria-expanded="true"] .nav-toggle-bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before { top: 0; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after { top: 0; transform: rotate(-45deg); }

/* 轮次刻度尺 */
.header-rail {
  display: flex;
  align-items: flex-end;
  gap: 12px;
  width: 100%;
  max-width: var(--wrap-max);
  margin: 10px auto 0;
  padding: 0 6px;
}

.rail-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--steel-500);
  white-space: nowrap;
  text-transform: uppercase;
}

.rail-label--now { color: var(--gold-500); }

.rail-scale {
  display: flex;
  flex: 1 1 auto;
  align-items: flex-end;
  justify-content: space-between;
  border-bottom: 1px solid var(--line-soft);
  padding-bottom: 2px;
  min-width: 40px;
}

.rail-tick {
  display: block;
  width: 1px;
  height: 5px;
  background: var(--line-strong);
}

.rail-tick--now {
  width: 2px;
  height: 10px;
  background: var(--gold-500);
}

/* 阅读进度 */
.progress-track {
  display: block;
  width: 100%;
  max-width: var(--wrap-max);
  margin: 8px auto 0;
  height: 2px;
  background: rgba(126, 154, 164, 0.18);
  border-radius: 2px;
  overflow: hidden;
}

.progress-bar {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--field-700), var(--gold-500) 68%, var(--orange-500));
  transition: transform 120ms linear;
}

/* ---------- 5 外壳页脚 ---------- */
.site-footer {
  margin-top: clamp(48px, 8vw, 110px);
  border-top: 1px solid var(--line-soft);
  background: linear-gradient(180deg, rgba(11, 36, 28, 0.98) 0%, rgba(5, 19, 15, 1) 46%);
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.72;
}

.footer-archive {
  border-bottom: 1px solid var(--line-soft);
  background: linear-gradient(90deg, rgba(214, 161, 63, 0.10), rgba(224, 122, 74, 0.06) 44%, rgba(126, 154, 164, 0.04));
}

.archive-inner {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 22px);
  max-width: var(--wrap-max);
  margin: 0 auto;
  padding: 13px var(--pad-inline);
  flex-wrap: wrap;
}

.archive-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.20em;
  color: var(--orange-500);
  white-space: nowrap;
}

.archive-list {
  display: flex;
  flex: 1 1 auto;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 2px;
  scrollbar-width: thin;
}

.archive-chip {
  display: inline-block;
  padding: 5px 12px;
  border: 1px dashed var(--line-gold);
  border-radius: var(--radius-s);
  background: var(--sheet-veil);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  white-space: nowrap;
  transition: background var(--ease), color var(--ease), border-color var(--ease), border-style var(--ease);
}

.archive-chip:hover {
  background: var(--gold-500);
  border-color: var(--gold-500);
  border-style: solid;
  color: var(--ink-950);
}

.footer-main {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.8fr) minmax(0, 0.95fr) minmax(0, 1.5fr);
  gap: clamp(24px, 3.4vw, 46px);
  max-width: var(--wrap-max);
  margin: 0 auto;
  padding: clamp(34px, 5vw, 60px) var(--pad-inline);
}

.footer-brand-name {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--text-primary);
}

.footer-tagline {
  margin-top: 12px;
  padding-left: 12px;
  border-left: 2px solid var(--line-gold);
  max-width: 26em;
  font-size: 13.5px;
  color: var(--text-secondary);
}

.footer-col-title {
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.22em;
  color: var(--gold-500);
}

.footer-links {
  display: grid;
  gap: 9px;
}

.footer-link {
  display: inline-block;
  font-size: 14px;
  color: var(--text-secondary);
  transition: color var(--ease);
}

.footer-link::before {
  content: "—";
  margin-right: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--steel-500);
  opacity: 0.7;
}

.footer-link:hover { color: var(--gold-500); }
.footer-link:hover::before { color: var(--gold-500); opacity: 1; }

.contact-list {
  display: grid;
  gap: 12px;
}

.contact-item {
  display: grid;
  gap: 3px;
}

.contact-key {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.22em;
  color: var(--steel-500);
}

.contact-value {
  color: var(--text-primary);
  font-size: 13.5px;
  line-height: 1.6;
  word-break: break-word;
}

.contact-value--mono {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.01em;
}

.footer-note {
  margin-top: 16px;
  padding: 10px 12px;
  border-left: 2px solid rgba(214, 161, 63, 0.55);
  background: var(--sheet-veil);
  color: var(--steel-500);
  font-size: 12.5px;
  line-height: 1.72;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 22px;
  max-width: var(--wrap-max);
  margin: 0 auto;
  padding: 18px var(--pad-inline) 30px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--steel-500);
}

.footer-edge { color: rgba(183, 200, 201, 0.72); }
.footer-icp { color: var(--text-secondary); }

/* ---------- 6 通用按钮与标签 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-family: var(--font-text);
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.2;
  cursor: pointer;
  transition: background var(--ease), color var(--ease), border-color var(--ease), transform var(--ease);
}

.btn--primary {
  background: linear-gradient(135deg, #E0B45C, var(--gold-500));
  border-color: var(--gold-500);
  color: var(--ink-950);
}

.btn--primary:hover {
  background: linear-gradient(135deg, var(--gold-500), var(--orange-500));
  border-color: var(--orange-500);
}

.btn--ghost {
  background: transparent;
  border-color: var(--line-gold);
  color: var(--gold-500);
}

.btn--ghost:hover {
  background: rgba(214, 161, 63, 0.14);
  border-color: var(--gold-500);
  color: var(--paper-200);
}

.btn--sm {
  padding: 8px 15px;
  font-size: 12.5px;
}

.tag {
  display: inline-block;
  padding: 3px 9px;
  border: 1px solid transparent;
  border-radius: var(--radius-s);
  background: var(--sheet-veil);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  white-space: nowrap;
}

.tag--gold {
  background: rgba(214, 161, 63, 0.16);
  border-color: var(--line-gold);
  color: var(--gold-500);
}

.tag--orange {
  background: rgba(224, 122, 74, 0.16);
  border-color: rgba(224, 122, 74, 0.42);
  color: var(--orange-500);
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: rgba(18, 54, 43, 0.62);
  color: var(--text-secondary);
  font-size: 13px;
  cursor: pointer;
  transition: border-color var(--ease), color var(--ease), background var(--ease);
}

.chip:hover {
  border-color: var(--gold-500);
  color: var(--gold-500);
}

.chip[aria-pressed="true"] {
  background: rgba(214, 161, 63, 0.16);
  border-color: var(--gold-500);
  color: var(--gold-500);
}

/* ---------- 7 卡片与纸张 ---------- */
.card {
  position: relative;
  padding: clamp(18px, 2.4vw, 26px);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-l);
  background: linear-gradient(160deg, rgba(18, 54, 43, 0.92), rgba(11, 36, 28, 0.96));
  color: var(--text-primary);
  transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease);
}

.card--paper {
  background: linear-gradient(168deg, var(--paper-200), #E4DAC6);
  border-color: rgba(5, 19, 15, 0.14);
  color: var(--ink-950);
}

.card--paper a {
  color: var(--ink-950);
  text-decoration: underline;
  text-decoration-color: rgba(11, 36, 28, 0.35);
  text-underline-offset: 3px;
}

.card--float {
  border-color: var(--line-gold);
  box-shadow: 0 22px 46px -30px rgba(214, 161, 63, 0.55);
}

.card--lift:hover {
  transform: translateY(-2px);
  border-color: var(--gold-500);
  box-shadow: 0 26px 48px -34px rgba(0, 0, 0, 0.95);
}

.paper-stack {
  position: relative;
  isolation: isolate;
}

.paper-stack::before,
.paper-stack::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  border: 1px solid rgba(241, 232, 216, 0.14);
  background: rgba(241, 232, 216, 0.06);
  z-index: -1;
}

.paper-stack::before { transform: translate(7px, 8px) rotate(0.6deg); }
.paper-stack::after { transform: translate(-6px, -7px) rotate(-0.8deg); background: rgba(241, 232, 216, 0.04); }

.round-anchor {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 2px;
  border-bottom: 1px dashed var(--line-soft);
  font-family: var(--font-mono);
  transition: border-color var(--ease);
}

.round-num {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  transition: color var(--ease);
}

.round-meta {
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--steel-500);
}

.round-anchor:hover { border-color: var(--line-gold); }
.round-anchor:hover .round-num { color: var(--gold-500); }

.round-anchor[data-active="true"] { border-color: var(--gold-500); }
.round-anchor[data-active="true"] .round-num { color: var(--gold-500); }

.anchor-target { scroll-margin-top: 140px; }

.annotation {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--steel-500);
}

/* ---------- 8 图片容器 ---------- */
.figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-m);
  background: linear-gradient(150deg, rgba(30, 74, 60, 0.9), rgba(11, 36, 28, 0.96));
  box-shadow: 0 26px 50px -40px rgba(0, 0, 0, 0.95);
}

.figure-media {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  filter: saturate(0.94) contrast(1.04);
}

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

.figure-placeholder {
  display: grid;
  place-items: center;
  width: 100%;
  aspect-ratio: 16 / 10;
  background:
    repeating-linear-gradient(135deg, rgba(126, 154, 164, 0.10) 0 2px, transparent 2px 12px),
    linear-gradient(150deg, rgba(30, 74, 60, 0.7), rgba(11, 36, 28, 0.9));
  color: rgba(183, 200, 201, 0.6);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
}

.figure--wide .figure-placeholder { aspect-ratio: 21 / 9; }
.figure--tall .figure-placeholder { aspect-ratio: 4 / 5; }

.figure-stamp {
  position: absolute;
  right: 12px;
  bottom: 10px;
  padding: 3px 9px;
  border-radius: 3px;
  background: rgba(5, 19, 15, 0.66);
  color: rgba(241, 232, 216, 0.78);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
}

.figure-caption {
  margin-top: 10px;
  color: var(--steel-500);
  font-size: 12.5px;
  line-height: 1.65;
}

/* ---------- 9 布局工具 ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap-max);
  margin-inline: auto;
  padding-inline: var(--pad-inline);
}

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

.section-head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(20px, 3vw, 36px);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.26em;
  color: var(--orange-500);
  text-transform: uppercase;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(26px, 3.4vw, 38px);
  font-weight: 800;
  letter-spacing: -0.015em;
  color: var(--text-primary);
}

.lede {
  max-width: 60ch;
  font-size: clamp(15px, 1.15vw, 17px);
  color: var(--text-secondary);
}

.stack { display: grid; gap: 16px; }

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

.grid--two {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
}

.grid--aside {
  grid-template-columns: minmax(0, 1.65fr) minmax(0, 1fr);
  align-items: start;
}

.divider {
  height: 1px;
  border: 0;
  margin-block: clamp(24px, 4vw, 48px);
  background: var(--line-soft);
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.10em;
  color: var(--steel-500);
}

.crumb { color: var(--text-secondary); transition: color var(--ease); }
.crumb:hover { color: var(--gold-500); }
.crumb[aria-current="page"] { color: var(--gold-500); }
.crumb-sep { color: rgba(126, 154, 164, 0.6); }

.prose {
  max-width: 68ch;
  color: var(--text-secondary);
}

.prose h2,
.prose h3 {
  margin-top: clamp(26px, 3.4vw, 40px);
  margin-bottom: 12px;
  color: var(--text-primary);
  font-size: clamp(20px, 2vw, 26px);
}

.prose p + p { margin-top: 14px; }

.prose ul {
  display: grid;
  gap: 9px;
  margin-top: 14px;
}

.prose li {
  position: relative;
  padding-left: 18px;
}

.prose li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 6px;
  background: var(--gold-500);
  transform: rotate(45deg);
}

/* ---------- 10 响应式 ---------- */
@media (max-width: 1100px) {
  .footer-main {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.9fr) minmax(0, 1.4fr);
  }
  .footer-col:nth-of-type(2) { grid-column: 2; }
}

@media (max-width: 940px) {
  .site-header { padding-top: 10px; }

  .header-inner {
    border-radius: 26px;
    padding: 8px 10px 8px 14px;
    gap: 8px;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    display: none;
    z-index: 5;
    max-height: min(68vh, 540px);
    overflow-y: auto;
    padding: 10px;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius-l);
    background: linear-gradient(160deg, rgba(18, 54, 43, 0.99), rgba(11, 36, 28, 0.99));
    box-shadow: 0 30px 54px -34px rgba(0, 0, 0, 1);
  }

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

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

  .nav-item + .nav-item { border-top: 1px solid rgba(126, 154, 164, 0.16); }

  .nav-link {
    padding: 13px 14px;
    border-radius: 12px;
    font-size: 15px;
  }

  .nav-link[aria-current="page"]::after { display: none; }

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

  body[data-nav-open] { overflow: hidden; }

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

  .footer-main {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 28px 24px;
  }

  .footer-col:nth-of-type(2) { grid-column: auto; }

  .footer-brand,
  .footer-contact { grid-column: 1 / -1; }
}

@media (max-width: 700px) {
  .header-rail { display: none; }
  .progress-track { margin-top: 6px; }
  .brand-name { font-size: 15px; }
  .archive-inner { flex-direction: column; align-items: flex-start; gap: 8px; }
  .archive-list { width: 100%; }
  .footer-bottom { padding-bottom: 24px; }
}

@media (max-width: 560px) {
  .header-cta { display: none; }
  .brand-descriptor { font-size: 9.5px; letter-spacing: 0.14em; }
  .nav-toggle { padding: 8px 12px; }
  .nav-toggle-text { display: none; }
  .footer-main { grid-template-columns: minmax(0, 1fr); }
  .footer-brand-name { font-size: 20px; }
  .figure-media,
  .figure-placeholder { aspect-ratio: 4 / 3; }
  .figure--tall .figure-media,
  .figure--tall .figure-placeholder { aspect-ratio: 3 / 4; }
}

/* ---------- 11 动效偏好 ---------- */
@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;
    scroll-behavior: auto !important;
  }

  .card--lift:hover { transform: none; }
  .progress-bar { transition: none; }
  .skip-link { transition: none; }
}