/* ==========================================================================
   9393主页 · 共享样式 /assets/site.css
   活页档案工作台：夜蓝底 + 琥珀公告 + 青瓷检索
   ========================================================================== */

/* ---------- 1. 变量 ---------- */
:root {
  --night-900: #0B1730;
  --night-800: #14284A;
  --night-700: #1F3B69;
  --amber: #FFB020;
  --amber-soft: #FFC95C;
  --amber-deep: #8A5307;
  --celadon: #3FD0AF;
  --celadon-light: #B7F0E2;
  --paper: #F5F7FB;
  --ink: #0A1428;
  --gray: #7C8CA6;

  --text: #E6ECF5;
  --text-dim: #9FB0C9;
  --text-deep: #24344F;

  --line: rgba(124, 140, 166, 0.26);
  --line-strong: rgba(124, 140, 166, 0.5);

  --rail-w: 240px;
  --topbar-h: 68px;

  --r-sm: 10px;
  --r-card: 16px;
  --r-lg: 24px;
  --r-pill: 999px;

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

  --shadow-1: 0 1px 0 rgba(255, 255, 255, 0.04), 0 10px 26px rgba(3, 9, 22, 0.45);
  --ease: cubic-bezier(0.2, 0.7, 0.3, 1);
}

/* ---------- 2. Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  padding-left: var(--rail-w);
  background: var(--night-900);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  font-weight: 400;
  overflow-x: hidden;
}

img, svg, video { max-width: 100%; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { font: inherit; }

[hidden] { display: none !important; }

/* ---------- 3. 中文排版与基础元素 ---------- */
h1, h2, h3, h4, h5 {
  margin: 0 0 0.5em;
  font-family: var(--font-sans);
  color: var(--text);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.012em;
}

h1 { font-size: clamp(28px, 4vw, 52px); }
h2 { font-size: clamp(22px, 2.6vw, 38px); }
h3 { font-size: 22px; font-weight: 700; }
h4 { font-size: 18px; font-weight: 700; }
h5 { font-size: 16px; font-weight: 700; }

p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

a { color: var(--celadon); text-decoration: none; }
a:hover { color: var(--celadon-light); }

strong { font-weight: 700; color: #FFFFFF; }

code, kbd, samp {
  font-family: var(--font-mono);
  font-size: 0.92em;
  background: rgba(63, 208, 175, 0.1);
  color: var(--celadon-light);
  padding: 1px 6px;
  border-radius: 6px;
}

hr {
  border: 0;
  border-top: 1px dashed var(--line);
  margin: 32px 0;
}

:focus-visible {
  outline: 2px solid var(--celadon);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---------- 4. 跳至主要内容 ---------- */
.skip-link {
  position: fixed;
  top: -64px;
  left: 16px;
  z-index: 200;
  display: inline-block;
  padding: 10px 18px;
  background: var(--amber);
  color: #22160A;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  border-radius: 0 0 12px 12px;
  transition: top 160ms linear;
}
.skip-link:focus,
.skip-link:focus-visible {
  top: 0;
  color: #22160A;
  outline-offset: 0;
}

/* ---------- 5. 公告带 ---------- */
.notice-band {
  position: relative;
  z-index: 70;
  background: var(--amber);
  color: #22160A;
  border-bottom: 1px solid rgba(34, 22, 10, 0.18);
}
.notice-band[data-hidden] { display: none; }

.notice-band__inner {
  max-width: 1240px;
  margin: 0 auto;
  min-height: 40px;
  padding: 5px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.notice-band__tag {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  padding: 2px 9px;
  border-radius: var(--r-pill);
  background: rgba(34, 22, 10, 0.88);
  color: var(--amber);
}

.notice-band__text {
  flex: 1 1 auto;
  min-width: 0;
  margin: 0;
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.notice-band__link {
  flex: none;
  font-size: 13px;
  font-weight: 700;
  color: #22160A;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.notice-band__link:hover { color: #3A2410; }

.notice-band__close {
  flex: none;
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(34, 22, 10, 0.34);
  border-radius: 50%;
  background: transparent;
  color: #22160A;
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  transition: background-color 140ms linear, border-color 140ms linear;
}
.notice-band__close:hover { background: rgba(34, 22, 10, 0.14); }

/* ---------- 6. 顶栏 ---------- */
.masthead {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 23, 48, 0.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.masthead__inner {
  max-width: 1240px;
  margin: 0 auto;
  min-height: var(--topbar-h);
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: 20px;
}

/* 品牌 */
.brand {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
}
.brand:hover { color: var(--text); }

.brand__mark {
  flex: none;
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
  padding: 9px 10px;
  border-radius: 12px 12px 12px 3px;
  background: var(--amber);
  color: #22160A;
}

.brand__text { display: block; }

.brand__name {
  display: block;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.03em;
  line-height: 1.25;
  color: var(--text);
}

.brand__tagline {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.02em;
  line-height: 1.4;
  color: var(--gray);
}

.brand--footer { margin-bottom: 14px; }

/* 检索 */
.search {
  position: relative;
  flex: 1 1 auto;
  max-width: 420px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 16px;
  background: var(--night-800);
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  transition: border-color 160ms linear, background-color 160ms linear;
}
.search:focus-within {
  border-color: var(--celadon);
  background: #16294D;
}

.search__label {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.search__input {
  flex: 1 1 auto;
  min-width: 0;
  padding: 5px 0;
  border: 0;
  background: transparent;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.6;
  outline: none;
}
.search__input::placeholder { color: var(--gray); }
.search__input::-webkit-search-cancel-button { filter: invert(0.7); }

.search__hint {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--celadon);
  white-space: nowrap;
}

/* 顶栏动作区 */
.masthead__actions {
  flex: none;
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
}

/* ---------- 7. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 18px;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  background: transparent;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.5;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: transform 200ms var(--ease), background-color 160ms linear,
    border-color 160ms linear, color 160ms linear;
}
.btn:hover { transform: translateY(-2px); }

.btn--amber { background: var(--amber); color: #22160A; }
.btn--amber:hover { background: var(--amber-soft); color: #22160A; }

.btn--ghost {
  border-color: var(--line-strong);
  background: transparent;
  color: var(--text);
}
.btn--ghost:hover { border-color: var(--celadon); color: var(--celadon-light); }

/* ---------- 8. 移动导航按钮 ---------- */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 9px 15px;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-pill);
  background: var(--night-800);
  color: var(--text);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: border-color 160ms linear, color 160ms linear;
}
.nav-toggle:hover { border-color: var(--celadon); }
.nav-toggle[aria-expanded="true"] {
  border-color: var(--celadon);
  color: var(--celadon-light);
  background: var(--night-700);
}

.nav-toggle__bars {
  position: relative;
  display: block;
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
}
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
}
.nav-toggle__bars::before { top: -5px; }
.nav-toggle__bars::after { top: 5px; }

.nav-toggle__label { line-height: 1; }

/* ---------- 9. 左侧索引轨道 ---------- */
.rail {
  position: fixed;
  top: 0;
  right: auto;
  bottom: 0;
  left: 0;
  z-index: 60;
  width: var(--rail-w);
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 24px 16px 18px;
  background: linear-gradient(180deg, #0D1B38 0%, #091225 100%);
  border-right: 1px solid var(--line);
  overflow-y: auto;
  overscroll-behavior: contain;
}

.rail__title {
  margin: 0;
  padding: 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--gray);
}

.rail__title--sub {
  color: var(--celadon);
  margin-bottom: 10px;
}

.rail__list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.rail__item { display: block; }

.rail__link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-left: 2px solid transparent;
  border-radius: 12px;
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.5;
  text-decoration: none;
  transition: background-color 140ms linear, color 140ms linear,
    border-color 140ms linear;
}
.rail__link:hover {
  background: var(--night-800);
  color: #FFFFFF;
}
.rail__link[aria-current="page"] {
  background: var(--night-700);
  border-left-color: var(--amber);
  color: #FFFFFF;
  font-weight: 700;
}
.rail__link[aria-current="page"] .rail__index { color: var(--amber); }

.rail__index {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--gray);
  transition: color 140ms linear;
}

.rail__sections {
  display: flex;
  flex-direction: column;
  padding-top: 18px;
  border-top: 1px dashed var(--line);
}

.rail__list--sub .rail__link {
  padding: 6px 10px;
  font-size: 13px;
  color: var(--text-dim);
}
.rail__list--sub .rail__link:hover { color: var(--text); }
.rail__list--sub .rail__link[aria-current="true"] {
  background: rgba(63, 208, 175, 0.09);
  border-left-color: var(--celadon);
  color: var(--celadon);
}

.rail__foot {
  margin-top: auto;
  padding: 16px 10px 0;
  border-top: 1px solid var(--line);
}

.rail__foot-line {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.02em;
  color: var(--gray);
}

.rail__foot-mail {
  margin: 0 0 10px;
  font-size: 12px;
  color: var(--text-dim);
  word-break: break-all;
  line-height: 1.6;
}

.rail__foot-link {
  font-size: 13px;
  font-weight: 700;
  color: var(--celadon);
}
.rail__foot-link:hover { color: var(--celadon-light); }

/* 抽屉遮罩 */
.rail-scrim {
  position: fixed;
  inset: 0;
  z-index: 55;
  background: rgba(4, 9, 20, 0.66);
  opacity: 0;
  pointer-events: none;
  transition: opacity 200ms linear;
}
.rail-scrim[data-open] {
  opacity: 1;
  pointer-events: auto;
}

/* ---------- 10. 返回顶部 ---------- */
.to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 80;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: var(--night-800);
  color: var(--celadon);
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: opacity 200ms linear, visibility 200ms linear,
    border-color 160ms linear, background-color 160ms linear;
}
.to-top[data-visible] {
  opacity: 1;
  visibility: visible;
}
.to-top:hover {
  border-color: var(--celadon);
  background: var(--night-700);
}

/* ---------- 11. 页脚 ---------- */
.site-footer {
  margin-top: 80px;
  padding: 56px 24px 0;
  background: linear-gradient(180deg, #0A1428 0%, #07101F 100%);
  border-top: 1px solid var(--line);
}

.site-footer__inner {
  max-width: 1180px;
  margin: 0 auto;
  padding-bottom: 40px;
  display: grid;
  grid-template-columns: 1.15fr 1.75fr 1.35fr;
  gap: 40px;
  align-items: start;
}

.site-footer__brand { min-width: 0; }

.site-footer__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.85;
  color: var(--text-dim);
}

.foot-nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.foot-nav__col { min-width: 0; }

.foot-nav__col-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.foot-nav__list {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.foot-nav__link {
  font-size: 14px;
  color: var(--text-dim);
  text-decoration: none;
  transition: color 140ms linear;
}
.foot-nav__link:hover { color: var(--celadon-light); }

.site-footer__contact { min-width: 0; }

.site-footer__contact .site-footer__note { margin-top: 14px; }

.contact-row {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 11px;
}

.contact-row__label {
  flex: none;
  width: 34px;
  padding-top: 1px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--gray);
}

.contact-row__value {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--text);
  word-break: break-all;
}

.copy-btn {
  flex: none;
  padding: 1px 9px;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-pill);
  background: transparent;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.7;
  cursor: pointer;
  transition: border-color 140ms linear, color 140ms linear,
    background-color 140ms linear;
}
.copy-btn:hover {
  border-color: var(--celadon);
  color: var(--celadon);
  background: rgba(63, 208, 175, 0.08);
}

.site-footer__bar {
  max-width: 1180px;
  margin: 0 auto;
  padding: 18px 0 26px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
}

.site-footer__copy,
.site-footer__icp {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--gray);
}

/* ---------- 12. 通用布局工具 ---------- */
.wrap {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding-left: clamp(16px, 3vw, 40px);
  padding-right: clamp(16px, 3vw, 40px);
}

.section { padding: 48px 0; }

.section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 12px 16px;
  margin-bottom: 24px;
}

.section__title {
  margin: 0;
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.012em;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.stack > * + * { margin-top: 16px; }

/* ---------- 13. 基础组件 ---------- */
.card {
  padding: 20px;
  background: var(--night-800);
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  transition: transform 200ms var(--ease), border-color 200ms linear,
    box-shadow 200ms linear;
}
.card:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-1);
}

.card--lg { border-radius: var(--r-lg); }

.card--amber {
  background: linear-gradient(158deg, #33270A 0%, #1B1A12 100%);
  border-color: rgba(255, 176, 32, 0.34);
}
.card--amber:hover { border-color: rgba(255, 176, 32, 0.6); }

.card--celadon {
  background: linear-gradient(158deg, #0C2C2C 0%, #0D2338 100%);
  border-color: rgba(63, 208, 175, 0.3);
}
.card--celadon:hover { border-color: rgba(63, 208, 175, 0.56); }

.card--paper {
  background: var(--paper);
  border-color: rgba(10, 20, 40, 0.08);
  color: var(--text-deep);
}
.card--paper:hover { border-color: rgba(10, 20, 40, 0.2); }

.num-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  height: 24px;
  padding: 0 8px;
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  background: var(--night-700);
  color: var(--celadon-light);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1;
}
.num-badge--amber {
  background: rgba(255, 176, 32, 0.16);
  border-color: rgba(255, 176, 32, 0.42);
  color: var(--amber);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 11px;
  border: 1px solid rgba(63, 208, 175, 0.32);
  border-radius: var(--r-pill);
  background: rgba(63, 208, 175, 0.13);
  color: var(--celadon);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  line-height: 1.7;
  white-space: nowrap;
}
.tag--amber {
  background: rgba(255, 176, 32, 0.14);
  border-color: rgba(255, 176, 32, 0.36);
  color: var(--amber);
}
.tag--ghost {
  background: transparent;
  border-color: var(--line-strong);
  color: var(--text-dim);
}

.note {
  padding: 11px 16px;
  border-left: 3px solid var(--amber);
  border-radius: 0 12px 12px 0;
  background: rgba(255, 176, 32, 0.08);
  font-size: 14px;
  line-height: 1.85;
  color: var(--text);
}
.note--celadon {
  border-left-color: var(--celadon);
  background: rgba(63, 208, 175, 0.08);
}

.crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 22px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--gray);
}
.crumbs li { display: flex; align-items: center; gap: 8px; }
.crumbs li + li::before { content: "/"; color: var(--night-700); }
.crumbs a { color: var(--text-dim); }
.crumbs a:hover { color: var(--celadon); }
.crumbs [aria-current="page"] { color: var(--amber); }

.zone--paper {
  background: var(--paper);
  color: var(--text-deep);
  border-radius: var(--r-lg);
}
.zone--paper h1,
.zone--paper h2,
.zone--paper h3,
.zone--paper h4,
.zone--paper h5 { color: var(--ink); }
.zone--paper p,
.zone--paper li { color: var(--text-deep); }
.zone--paper strong { color: var(--ink); }
.zone--paper .note {
  border-left-color: var(--amber-deep);
  background: rgba(138, 83, 7, 0.08);
  color: var(--ink);
}
.zone--paper .note--celadon {
  border-left-color: #1E8E77;
  background: rgba(63, 208, 175, 0.14);
}

/* ---------- 14. 响应式图片容器（供页面阶段放置图片） ---------- */
.media {
  position: relative;
  overflow: hidden;
  border-radius: var(--r-card);
  background: var(--night-800);
  display: block;
}
.media img,
.media > svg,
.media > picture > img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media--4x3 { aspect-ratio: 4 / 3; }
.media--16x9 { aspect-ratio: 16 / 9; }
.media--1x1 { aspect-ratio: 1 / 1; }
.media--wide { aspect-ratio: 21 / 9; }

.media--placeholder {
  background-color: #0E1F3C;
  background-image:
    linear-gradient(135deg, rgba(63, 208, 175, 0.14) 0 10px, transparent 10px 22px),
    linear-gradient(158deg, var(--night-800) 0%, #0C1B34 100%);
}

.media__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 12px 16px;
  background: linear-gradient(180deg, rgba(11, 23, 48, 0) 0%, rgba(11, 23, 48, 0.92) 100%);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--celadon-light);
}

/* ---------- 15. 断点 ---------- */
@media (max-width: 1199px) {
  .site-footer__inner { gap: 32px; }
}

@media (max-width: 1023px) {
  body { padding-left: 0; }

  .rail {
    width: min(300px, 84vw);
    z-index: 90;
    transform: translateX(-102%);
    transition: transform 220ms var(--ease);
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.5);
  }
  .rail[data-open] { transform: translateX(0); }

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

  .site-footer__inner {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
  .site-footer__contact { grid-column: 1 / -1; }
}

@media (max-width: 767px) {
  body { font-size: 16px; }

  .masthead__inner {
    flex-wrap: wrap;
    gap: 10px;
    padding: 10px 16px;
  }
  .brand { order: 1; }
  .masthead__actions { order: 2; margin-left: auto; }
  .search {
    order: 3;
    flex: 1 1 100%;
    max-width: none;
  }

  .notice-band__inner { padding: 5px 16px; gap: 10px; }
  .notice-band__text { font-size: 12px; }

  .site-footer { padding: 44px 18px 0; margin-top: 56px; }
  .foot-nav { grid-template-columns: 1fr 1fr; }

  .to-top { right: 16px; bottom: 16px; }
}

@media (max-width: 560px) {
  .brand__tagline { display: none; }
  .notice-band__link { display: none; }
  .search__hint { display: none; }

  .site-footer__inner { grid-template-columns: 1fr; }
  .site-footer__bar { flex-direction: column; align-items: flex-start; }

  h1 { font-size: 28px; }
  h2 { font-size: 22px; }
}

/* ---------- 16. 降低动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-property: opacity, color, background-color, border-color !important;
    transition-duration: 120ms !important;
    scroll-behavior: auto !important;
  }

  .btn:hover,
  .card:hover,
  .to-top { transform: none !important; }
}