/* ============================================================
   皇冠体彩 · 共享站点样式 / assets/site.css
   夜间数据大厅：深墨黑控制台 + 米白阅读区 + 矿物色块
   ============================================================ */

/* ---------- 1. 设计令牌 ---------- */
:root {
  --ink: #0E1114;
  --ink-soft: #1B2126;
  --ink-deep: #080A0C;
  --gold: #D6A84B;
  --stone: #8B8F86;
  --moss: #5B6B57;
  --clay: #B86B4B;
  --paper: #F2EDE3;
  --paper-raised: #FAF6EE;
  --cyan: #38D6D9;
  --coral: #FF6B4A;
  --focus: #7FB2FF;

  --gold-soft: rgba(214, 168, 75, 0.12);
  --gold-line: rgba(214, 168, 75, 0.34);
  --on-dark: rgba(242, 237, 227, 0.72);
  --on-dark-dim: rgba(242, 237, 227, 0.46);
  --rule-dark: rgba(242, 237, 227, 0.10);
  --rule-light: rgba(14, 17, 20, 0.13);

  --font-display: "Noto Serif SC", "Songti SC", "Source Han Serif SC", "SimSun", serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, "Helvetica Neue", sans-serif;
  --font-num: "IBM Plex Mono", "Roboto Mono", SFMono-Regular, Consolas, "Courier New", monospace;

  --shell: 1240px;
  --gutter: clamp(1.1rem, 3vw, 2.5rem);

  --r-sm: 4px;
  --r-md: 10px;
  --r-lg: 22px;

  --dur: 190ms;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);

  --shadow-card: 0 1px 0 rgba(14, 17, 20, 0.04), 0 14px 30px -20px rgba(14, 17, 20, 0.5);
  --shadow-lift: 0 2px 0 rgba(14, 17, 20, 0.05), 0 26px 48px -26px rgba(14, 17, 20, 0.6);
}

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

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

a { color: inherit; }

ul, ol { margin: 0; padding: 0; }

::selection {
  background: rgba(56, 214, 217, 0.32);
  color: var(--ink);
}

#main-content { scroll-margin-top: 9rem; }

/* ---------- 3. 焦点与可访问性 ---------- */
:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
  border-radius: 2px;
}

.skip-link {
  position: fixed;
  top: 0.5rem;
  left: 0.5rem;
  z-index: 999;
  padding: 0.7rem 1.2rem;
  border-radius: 999px;
  background: var(--gold);
  color: var(--ink);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-decoration: none;
  transform: translateY(calc(-100% - 1rem));
  opacity: 0;
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}
.skip-link:focus-visible {
  transform: translateY(0);
  opacity: 1;
}

/* ---------- 4. 中文排版与标题 ---------- */
h1, h2, h3, h4, h5, h6 {
  margin: 0 0 0.6em;
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.24;
  letter-spacing: 0.012em;
  text-wrap: balance;
}

h1 { font-size: clamp(2rem, 3.6vw, 3.4rem); }
h2 { font-size: clamp(1.5rem, 2.4vw, 2.1rem); }
h3 { font-size: clamp(1.16rem, 1.6vw, 1.42rem); }
h4 { font-size: clamp(1rem, 1.2vw, 1.12rem); }

p { margin: 0 0 1.15em; }
p:last-child { margin-bottom: 0; }

strong, b { font-weight: 700; }

small { font-size: 0.82rem; }

/* ---------- 5. 容器与网格 ---------- */
.shell {
  width: min(var(--shell), calc(100% - var(--gutter) * 2));
  margin-inline: auto;
}

.lattice {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(1rem, 2vw, 1.75rem);
}

.side-rail { grid-column: span 3; min-width: 0; }
.stage { grid-column: span 9; min-width: 0; }

.prose {
  max-width: 68ch;
}
.prose > * + * { margin-top: 1.1em; }

.section {
  padding-block: clamp(2.2rem, 5vw, 4rem);
}

.section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
  margin-bottom: clamp(1.2rem, 2.5vw, 2rem);
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--rule-light);
}

/* ---------- 6. 文字工具 ---------- */
.num {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
  letter-spacing: 0.02em;
}

.eyebrow {
  display: inline-block;
  margin: 0 0 0.7rem;
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.24em;
  color: var(--clay);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.18rem 0.6rem;
  border: 1px solid var(--rule-light);
  border-radius: 999px;
  background: rgba(91, 107, 87, 0.10);
  color: var(--moss);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

/* ---------- 7. 按钮 ---------- */
.btn {
  --btn-bg: var(--gold);
  --btn-fg: var(--ink);
  --btn-bd: transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.64rem 1.2rem;
  border: 1px solid var(--btn-bd);
  border-radius: 999px;
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-family: var(--font-body);
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  line-height: 1.4;
  text-decoration: none;
  cursor: pointer;
  transition:
    transform var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease),
    background-color var(--dur) var(--ease),
    border-color var(--dur) var(--ease),
    color var(--dur) var(--ease);
}
.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 26px -16px rgba(14, 17, 20, 0.75);
}
.btn:active { transform: translateY(0); box-shadow: none; }

.btn--ghost {
  --btn-bg: transparent;
  --btn-fg: var(--paper);
  --btn-bd: var(--rule-dark);
}
.btn--ghost:hover {
  --btn-bd: var(--gold);
  --btn-fg: var(--gold);
}

.btn--line {
  --btn-bg: transparent;
  --btn-fg: var(--ink);
  --btn-bd: rgba(14, 17, 20, 0.24);
}
.btn--line:hover {
  --btn-bd: var(--clay);
  --btn-fg: var(--clay);
}

.btn--moss {
  --btn-bg: var(--moss);
  --btn-fg: var(--paper);
}

.btn--sm {
  padding: 0.4rem 0.85rem;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
}

/* ---------- 8. 面包屑 ---------- */
.crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  margin: 0;
  padding: 1rem 0;
  list-style: none;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--stone);
}
.crumbs__item {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}
.crumbs a {
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}
.crumbs a:hover {
  color: var(--clay);
  text-decoration: underline;
  text-underline-offset: 4px;
}
.crumbs__sep {
  color: rgba(139, 143, 134, 0.55);
  font-family: var(--font-num);
}
.crumbs [aria-current="page"] {
  color: var(--ink);
  font-weight: 700;
}

/* ---------- 9. 面板卡片 ---------- */
.panel {
  padding: clamp(1rem, 2vw, 1.5rem);
  border: 1px solid var(--rule-light);
  border-radius: var(--r-md);
  background: var(--paper-raised);
  box-shadow: var(--shadow-card);
  transition:
    transform var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}
.panel:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lift);
  border-color: var(--gold-line);
}

.panel--dark {
  border-color: var(--rule-dark);
  background: var(--ink-soft);
  color: var(--paper);
  box-shadow: none;
}
.panel--dark:hover {
  border-color: var(--gold-line);
  box-shadow: 0 22px 40px -26px rgba(0, 0, 0, 0.85);
}

/* ---------- 10. 图片容器基座 ---------- */
.media-frame {
  position: relative;
  display: block;
  overflow: hidden;
  border-radius: var(--r-md);
  background: linear-gradient(135deg, var(--ink-soft) 0%, #232B31 55%, var(--moss) 100%);
  isolation: isolate;
}

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

.media-frame--wide { aspect-ratio: 16 / 9; }
.media-frame--slab { aspect-ratio: 21 / 9; }
.media-frame--square { aspect-ratio: 1 / 1; }
.media-frame--portrait { aspect-ratio: 4 / 5; }

.media-frame--slant {
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 3.25rem), 0 100%);
  border-radius: var(--r-md) var(--r-md) 0 0;
}

.media-frame--scan::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    rgba(242, 237, 227, 0.055) 0 1px,
    transparent 1px 4px
  );
  pointer-events: none;
  z-index: 2;
}

/* ============================================================
   11. 头部
   ============================================================ */
.masthead {
  position: sticky;
  top: 0;
  z-index: 80;
  background: var(--ink);
  color: var(--paper);
  border-bottom: 1px solid var(--gold-line);
}

.masthead__band {
  background:
    linear-gradient(90deg, rgba(214, 168, 75, 0.16), rgba(214, 168, 75, 0) 46%),
    var(--ink-deep);
  border-bottom: 1px solid var(--rule-dark);
}

.masthead__band-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 0.4rem;
  font-family: var(--font-num);
  font-size: 0.71rem;
  letter-spacing: 0.14em;
  color: var(--on-dark-dim);
}

.masthead__pulse {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0;
  min-width: 0;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.masthead__pulse::before {
  content: "";
  flex: none;
  width: 0.42rem;
  height: 0.42rem;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 0 rgba(56, 214, 217, 0.5);
  animation: hall-pulse 2.8s var(--ease) infinite;
}

@keyframes hall-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(56, 214, 217, 0.45); }
  70%  { box-shadow: 0 0 0 0.5rem rgba(56, 214, 217, 0); }
  100% { box-shadow: 0 0 0 0 rgba(56, 214, 217, 0); }
}

.masthead__utility {
  margin: 0;
  flex: none;
  font-family: var(--font-body);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--on-dark-dim);
}

.masthead__main {
  border-bottom: 1px solid var(--rule-dark);
}

.masthead__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  padding-block: 0.82rem;
}

.masthead__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.72rem;
  min-width: 0;
  color: var(--paper);
  text-decoration: none;
}
.masthead__brand:hover .masthead__wordmark { color: #EFC572; }

.masthead__sigil {
  position: relative;
  flex: none;
  width: 1.42rem;
  height: 1.42rem;
  border: 1.5px solid var(--gold);
  border-radius: 2px;
  transform: rotate(45deg);
}
.masthead__sigil::after {
  content: "";
  position: absolute;
  inset: 0.32rem;
  background: var(--gold);
  border-radius: 1px;
}

.masthead__wordmark {
  font-family: var(--font-display);
  font-size: clamp(1.14rem, 2vw, 1.46rem);
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--gold);
  white-space: nowrap;
  transition: color var(--dur) var(--ease);
}

.masthead__tagline {
  padding-left: 0.85rem;
  border-left: 1px solid rgba(242, 237, 227, 0.18);
  font-size: 0.73rem;
  letter-spacing: 0.1em;
  color: var(--on-dark-dim);
  white-space: nowrap;
}

/* 移动菜单按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 0.55rem;
  flex: none;
  padding: 0.48rem 0.85rem;
  border: 1px solid rgba(242, 237, 227, 0.26);
  border-radius: 999px;
  background: transparent;
  color: var(--paper);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.nav-toggle:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.nav-toggle__bars {
  position: relative;
  display: block;
  width: 1rem;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: background-color var(--dur) var(--ease);
}
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform var(--dur) var(--ease);
}
.nav-toggle__bars::before { top: -5px; }
.nav-toggle__bars::after  { top: 5px; }

.nav-toggle[aria-expanded="true"] .nav-toggle__bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before { transform: translateY(5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after  { transform: translateY(-5px) rotate(-45deg); }

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

/* 主导航 */
.primary-nav {
  background: var(--ink-soft);
  border-bottom: 1px solid var(--rule-dark);
}

.primary-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.primary-nav__list {
  display: flex;
  align-items: stretch;
  flex-wrap: wrap;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.primary-nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 0.8rem 1.02rem;
  font-size: 0.86rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--on-dark);
  text-decoration: none;
  transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.primary-nav__link::after {
  content: "";
  position: absolute;
  left: 1.02rem;
  right: 1.02rem;
  bottom: 0;
  height: 2px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--dur) var(--ease);
}
.primary-nav__link:hover {
  color: var(--paper);
  background: rgba(242, 237, 227, 0.05);
}
.primary-nav__link:hover::after { transform: scaleX(1); }

.primary-nav__link[aria-current="page"] {
  color: var(--gold);
  background: var(--gold-soft);
}
.primary-nav__link[aria-current="page"]::after { transform: scaleX(1); }

.primary-nav__cta {
  flex: none;
  padding: 0.44rem 1.02rem;
  border: 1px solid var(--gold-line);
  border-radius: 999px;
  color: var(--gold);
  font-size: 0.79rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-decoration: none;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.primary-nav__cta:hover {
  background: var(--gold);
  color: var(--ink);
}

/* 阅读进度光带 */
.scroll-meter {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: rgba(242, 237, 227, 0.08);
  overflow: hidden;
  pointer-events: none;
}
.scroll-meter__fill {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--gold) 0%, var(--cyan) 100%);
  transform: scaleX(0);
  transform-origin: left center;
}

/* ============================================================
   12. 页脚
   ============================================================ */
.colophon {
  position: relative;
  background: var(--ink);
  color: var(--paper);
  border-top: 1px solid var(--gold-line);
  overflow: hidden;
}

.colophon::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 140px;
  pointer-events: none;
  background:
    repeating-linear-gradient(
      90deg,
      rgba(56, 214, 217, 0.06) 0 1px,
      transparent 1px 46px
    ),
    linear-gradient(180deg, rgba(214, 168, 75, 0.14), transparent);
}

.colophon__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.35fr);
  gap: clamp(1.75rem, 4vw, 3.5rem);
  padding-block: clamp(2.4rem, 5vw, 3.6rem) clamp(1.6rem, 3vw, 2.4rem);
}

.colophon__lead { min-width: 0; }

.colophon__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--gold);
  font-family: var(--font-display);
  font-size: 1.28rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}
.colophon__brand:hover { color: #EFC572; }

.colophon__sigil {
  position: relative;
  flex: none;
  width: 1.06rem;
  height: 1.06rem;
  border: 1.5px solid var(--gold);
  border-radius: 2px;
  transform: rotate(45deg);
}
.colophon__sigil::after {
  content: "";
  position: absolute;
  inset: 0.25rem;
  background: var(--gold);
  border-radius: 1px;
}

.colophon__line {
  margin: 0.95rem 0 0;
  max-width: 34ch;
  font-size: 0.9rem;
  line-height: 1.85;
  color: var(--on-dark);
}

.colophon__contact {
  margin: 1rem 0 0;
  font-family: var(--font-num);
  font-size: 0.77rem;
  line-height: 1.95;
  letter-spacing: 0.03em;
  color: var(--on-dark-dim);
}

.colophon__nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1rem, 3vw, 2rem);
  min-width: 0;
}

.colophon__col { min-width: 0; }

.colophon__title {
  margin: 0 0 0.9rem;
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--gold);
}

.colophon__list {
  display: grid;
  gap: 0.52rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.colophon__link {
  position: relative;
  display: inline-block;
  padding-bottom: 2px;
  font-size: 0.87rem;
  color: var(--on-dark);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}
.colophon__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--dur) var(--ease);
}
.colophon__link:hover { color: var(--cyan); }
.colophon__link:hover::after { transform: scaleX(1); }

.colophon__base {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem 1.5rem;
  padding-block: 1.1rem 1.7rem;
  border-top: 1px solid rgba(242, 237, 227, 0.1);
  font-size: 0.73rem;
  letter-spacing: 0.05em;
  color: var(--on-dark-dim);
}
.colophon__legal,
.colophon__note {
  margin: 0;
  font-family: var(--font-num);
  font-size: 0.72rem;
}
.colophon__note {
  font-family: var(--font-body);
  letter-spacing: 0.08em;
}

/* ============================================================
   13. 响应式
   ============================================================ */
@media (max-width: 1100px) {
  .primary-nav__link {
    padding-inline: 0.78rem;
    font-size: 0.83rem;
  }
  .primary-nav__link::after {
    left: 0.78rem;
    right: 0.78rem;
  }
}

@media (max-width: 1023px) {
  .masthead__tagline { display: none; }
  .colophon__inner { grid-template-columns: 1fr; }
}

@media (max-width: 899px) {
  .nav-toggle { display: inline-flex; }

  .primary-nav[data-open="false"] { display: none; }

  .primary-nav__inner {
    flex-direction: column;
    align-items: stretch;
    padding-block: 0.4rem 1rem;
  }

  .primary-nav__list {
    flex-direction: column;
    align-items: stretch;
  }

  .primary-nav__link {
    padding: 0.78rem 0.15rem;
    font-size: 0.95rem;
    border-bottom: 1px solid rgba(242, 237, 227, 0.07);
  }
  .primary-nav__link::after {
    left: 0;
    right: auto;
    bottom: -1px;
    width: 2.4rem;
  }

  .primary-nav__cta {
    align-self: flex-start;
    margin-top: 0.9rem;
    padding: 0.55rem 1.15rem;
  }

  .lattice { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .side-rail,
  .stage { grid-column: 1 / -1; }
}

@media (max-width: 720px) {
  .masthead__band-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.15rem;
    padding-block: 0.45rem;
  }
  .masthead__pulse { font-size: 0.67rem; letter-spacing: 0.1em; }
  .masthead__utility { font-size: 0.66rem; }
  .masthead__inner { padding-block: 0.7rem; }
  .masthead__sigil { width: 1.2rem; height: 1.2rem; }

  .colophon__nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .colophon__base { flex-direction: column; align-items: flex-start; }
  .colophon__contact { word-break: break-word; }
}

@media (max-width: 460px) {
  .colophon__nav { grid-template-columns: 1fr; }
  .nav-toggle__label { display: none; }
}

/* ---------- 14. 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;
    scroll-behavior: auto !important;
  }

  .masthead__pulse::before { animation: none; box-shadow: 0 0 0 3px rgba(56, 214, 217, 0.18); }
  .panel:hover,
  .btn:hover { transform: none; }
  .primary-nav__link:hover::after,
  .primary-nav__link[aria-current="page"]::after,
  .colophon__link:hover::after { transform: none; }
  .colophon__link:hover { text-decoration: underline; text-underline-offset: 4px; }
}

/* ---------- 15. 打印 ---------- */
@media print {
  .masthead,
  .colophon,
  .skip-link { display: none !important; }
  body { background: #fff; color: #000; }
}