/* ==========================================================
   皇冠体肓 Site Kit — 共享样式
   ========================================================== */

/* ---------- 1. CSS 变量 ---------- */
:root {
  --navy: #081F37;
  --royal: #1D4ED8;
  --electric: #3B82F6;
  --gold: #D4A017;
  --light-gold: #F5C76A;
  --signal-red: #EF4444;
  --ink: #0F172A;
  --paper: #F8FAFC;
  --slate: #64748B;
  --white: #FFFFFF;

  --font-head: 'Arial Black', 'Heiti SC', 'Microsoft YaHei', sans-serif;
  --font-body: 'Georgia', 'Noto Serif SC', 'Songti SC', serif;
  --font-num: 'DIN Alternate', 'Arial Narrow', 'Helvetica Neue', sans-serif;

  --container-w: 1280px;
  --gutter: 24px;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- 2. Reset ---------- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

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

main,
#main-content {
  display: block;
  scroll-margin-top: 76px;
}

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

ul,
ol {
  list-style: none;
}

a {
  color: var(--royal);
  text-decoration: none;
  transition: color 0.25s var(--ease), text-decoration-color 0.25s var(--ease);
}

a:hover {
  color: var(--signal-red);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-head);
  font-weight: 900;
  line-height: 1.25;
  color: var(--navy);
  text-wrap: balance;
}

h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); }
h2 { font-size: clamp(1.8rem, 3vw, 2.75rem); }
h3 { font-size: 1.35rem; }
h4 { font-size: 1.125rem; }

p + p {
  margin-top: 12px;
}

strong {
  font-weight: 700;
}

::selection {
  background: var(--gold);
  color: var(--navy);
}

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

/* ---------- 3. 容器与布局 ---------- */
.container {
  width: 100%;
  max-width: var(--container-w);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.grid-2,
.grid-3,
.grid-4 {
  display: grid;
  gap: 24px;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.prose {
  max-width: 78ch;
  margin: 0 auto;
}

.prose p {
  margin-bottom: 1.25em;
  line-height: 1.85;
}

.prose h2,
.prose h3 {
  margin-top: 1.75em;
  margin-bottom: 0.5em;
}

.prose ul {
  list-style: disc;
  padding-left: 1.4em;
  margin-bottom: 1.25em;
}

.prose ul li {
  margin-bottom: 0.4em;
}

.prose a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 4. 无障碍 ---------- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 8px;
  z-index: 400;
  background: var(--gold);
  color: var(--navy);
  font-family: var(--font-head);
  font-size: 0.875rem;
  font-weight: 700;
  padding: 10px 18px;
  text-decoration: none;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.35);
}

.skip-link:focus {
  left: 8px;
  color: var(--navy);
}

/* ---------- 5. 按钮 ---------- */
.btn {
  display: inline-block;
  padding: 13px 30px;
  font-family: var(--font-head);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  border: none;
  background: linear-gradient(105deg, var(--gold) 0%, var(--gold) 88%, var(--royal) 88%, var(--royal) 100%);
  color: var(--navy);
  position: relative;
  transition: filter 0.25s var(--ease), transform 0.12s var(--ease), box-shadow 0.25s var(--ease);
}

.btn:hover {
  filter: brightness(1.09);
  color: var(--navy);
}

.btn:active {
  transform: translateY(2px);
  filter: brightness(0.95);
}

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

.btn-gold:hover {
  background: var(--light-gold);
  color: var(--navy);
}

.btn-outline {
  background: transparent;
  color: var(--navy);
  box-shadow: inset 0 0 0 2px var(--navy);
}

.btn-outline:hover {
  color: var(--signal-red);
  box-shadow: inset 0 0 0 2px var(--signal-red);
  filter: none;
}

.btn-outline.btn-on-dark {
  color: var(--white);
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.55);
}

.btn-outline.btn-on-dark:hover {
  color: var(--light-gold);
  box-shadow: inset 0 0 0 2px var(--light-gold);
}

/* ---------- 6. 头部 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--navy);
  color: var(--white);
  border-bottom: 3px solid var(--gold);
  box-shadow: 0 4px 20px rgba(8, 31, 55, 0.3);
}

.site-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gold) 0%, var(--signal-red) 45%, var(--royal) 100%);
  z-index: 2;
  pointer-events: none;
}

.header-top {
  display: flex;
  align-items: center;
  gap: 24px;
  padding-top: 16px;
  padding-bottom: 16px;
  position: relative;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: var(--white);
  text-decoration: none;
  flex-shrink: 0;
}

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

.brand-mark {
  width: 44px;
  height: 46px;
  background: linear-gradient(140deg, var(--gold) 0%, var(--light-gold) 100%);
  color: var(--navy);
  font-family: var(--font-head);
  font-size: 22px;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  clip-path: polygon(50% 0%, 100% 18%, 94% 74%, 50% 100%, 6% 74%, 0 18%);
  flex-shrink: 0;
  line-height: 1;
}

.brand-name-holder {
  display: flex;
  align-items: baseline;
  gap: 8px;
  line-height: 1;
}

.brand-name {
  font-family: var(--font-head);
  font-size: 1.375rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  color: var(--white);
  white-space: nowrap;
}

.header-badge {
  display: inline-block;
  font-family: var(--font-head);
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--gold);
  border: 1px solid var(--gold);
  padding: 2px 6px;
  letter-spacing: 0.06em;
  line-height: 1.4;
  white-space: nowrap;
}

.header-tagline {
  margin: 0;
  font-family: var(--font-body);
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.72);
  border-left: 2px solid var(--gold);
  padding-left: 16px;
  flex: 1;
  letter-spacing: 0.02em;
  line-height: 1.6;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 2px;
  cursor: pointer;
  flex-shrink: 0;
  margin-left: auto;
  transition: background 0.25s var(--ease), border-color 0.25s var(--ease);
  -webkit-appearance: none;
  appearance: none;
}

.nav-toggle:hover {
  background: rgba(212, 160, 23, 0.15);
  border-color: var(--gold);
}

.nav-toggle-line {
  width: 20px;
  height: 2px;
  background: var(--white);
  border-radius: 1px;
  display: block;
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- 7. 导航 ---------- */
.site-nav {
  background: rgba(255, 255, 255, 0.045);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.nav-list a {
  display: block;
  padding: 14px 20px 16px;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.85);
  position: relative;
  transition: color 0.25s var(--ease), background 0.25s var(--ease);
}

.nav-list a::after {
  content: '';
  position: absolute;
  left: 20px;
  right: 20px;
  bottom: 9px;
  height: 2px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.3s var(--ease);
}

.nav-list a:hover,
.nav-list a:focus-visible {
  color: var(--light-gold);
  background: rgba(212, 160, 23, 0.06);
}

.nav-list a:hover::after,
.nav-list a:focus-visible::after {
  transform: scaleX(1);
}

.nav-list a[aria-current="page"] {
  color: var(--gold);
  background: rgba(212, 160, 23, 0.08);
}

.nav-list a[aria-current="page"]::after {
  content: '';
  position: absolute;
  left: 20px;
  right: 20px;
  bottom: 9px;
  height: 2px;
  background: var(--signal-red);
  transform: scaleX(1);
}

/* ---------- 8. 页脚 ---------- */
.site-footer {
  position: relative;
  background: var(--navy);
  color: rgba(255, 255, 255, 0.7);
  border-top: 3px solid var(--gold);
  margin-top: 80px;
  overflow: hidden;
}

.site-footer::after {
  content: '';
  position: absolute;
  right: 0;
  bottom: 0;
  width: 200px;
  height: 200px;
  background: linear-gradient(135deg, transparent 45%, rgba(212, 160, 23, 0.07) 45%, rgba(212, 160, 23, 0.09) 100%);
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.footer-main {
  display: grid;
  grid-template-columns: 2fr 1.5fr 1.2fr;
  gap: 48px;
  padding-top: 56px;
  padding-bottom: 48px;
  position: relative;
  z-index: 1;
}

.footer-about {
  position: relative;
}

.footer-about::after {
  content: '冠';
  position: absolute;
  right: 10px;
  top: -30px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 150px;
  line-height: 1;
  color: rgba(212, 160, 23, 0.05);
  -webkit-text-stroke: 1px rgba(212, 160, 23, 0.07);
  pointer-events: none;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-head);
  font-size: 1.25rem;
  font-weight: 900;
  color: var(--white);
  letter-spacing: 0.08em;
  margin: 0;
  position: relative;
  z-index: 1;
}

.footer-brand .brand-mark {
  width: 36px;
  height: 38px;
  font-size: 18px;
}

.footer-about-text {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 14px;
  line-height: 1.7;
  position: relative;
  z-index: 1;
}

.footer-trust {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.42);
  margin-top: 18px;
  border-left: 2px solid var(--gold);
  padding-left: 12px;
  line-height: 1.6;
  position: relative;
  z-index: 1;
}

.footer-heading {
  font-family: var(--font-head);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.2em;
  margin: 0 0 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(212, 160, 23, 0.3);
  position: relative;
}

.footer-heading::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 32px;
  height: 2px;
  background: var(--signal-red);
}

.footer-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-list a {
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
  transition: color 0.25s var(--ease), padding-left 0.25s var(--ease);
}

.footer-list a:hover {
  color: var(--light-gold);
  padding-left: 6px;
}

.footer-contact-list li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.6;
}

.footer-contact-label {
  font-family: var(--font-head);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.08em;
  min-width: 28px;
  flex-shrink: 0;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 16px 0;
  background: rgba(0, 0, 0, 0.22);
  position: relative;
  z-index: 1;
}

.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-bottom p {
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.5);
  margin: 0;
}

/* ---------- 9. 返回顶部 ---------- */
.scroll-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 300;
  width: 48px;
  height: 48px;
  border: 2px solid var(--gold);
  background: var(--navy);
  color: var(--gold);
  font-size: 1.25rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), visibility 0s linear 0.3s, background 0.3s var(--ease), color 0.3s var(--ease);
}

.scroll-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), visibility 0s;
}

.scroll-top:hover {
  background: var(--gold);
  color: var(--navy);
}

/* ---------- 10. 面包屑 ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--slate);
  padding: 12px 0;
  list-style: none;
  margin: 0;
}

.breadcrumb li {
  display: flex;
  align-items: center;
}

.breadcrumb li:not(:last-child)::after {
  content: '→';
  margin: 0 8px;
  color: var(--gold);
  font-size: 0.75rem;
}

.breadcrumb a {
  color: var(--navy);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--signal-red);
}

.breadcrumb [aria-current="page"] {
  color: var(--slate);
  font-weight: 400;
}

/* ---------- 11. 内页顶部 ---------- */
.page-top {
  position: relative;
  background: var(--navy);
  color: var(--white);
  padding: 56px 0 64px;
  overflow: hidden;
  border-bottom: 3px solid var(--gold);
}

.page-top::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -60px;
  width: 340px;
  height: 340px;
  border: 2px solid rgba(212, 160, 23, 0.4);
  transform: rotate(45deg);
  border-radius: 4px;
  pointer-events: none;
}

.page-top::after {
  content: '';
  position: absolute;
  right: 100px;
  bottom: -80px;
  width: 160px;
  height: 160px;
  background: linear-gradient(135deg, var(--royal), var(--electric));
  transform: rotate(20deg);
  opacity: 0.25;
  clip-path: polygon(0 0, 100% 0, 100% 30%, 30% 100%, 0 100%);
  pointer-events: none;
}

.page-title {
  position: relative;
  z-index: 1;
  font-family: var(--font-head);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 900;
  color: var(--white);
  margin: 0;
}

.page-desc {
  position: relative;
  z-index: 1;
  font-family: var(--font-body);
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.82);
  max-width: 56ch;
  margin-top: 12px;
}

.page-top .breadcrumb {
  position: relative;
  z-index: 1;
  color: rgba(255, 255, 255, 0.65);
  padding: 0;
  margin-bottom: 20px;
}

.page-top .breadcrumb li:not(:last-child)::after {
  color: var(--gold);
}

.page-top .breadcrumb a {
  color: rgba(255, 255, 255, 0.85);
}

.page-top .breadcrumb a:hover {
  color: var(--light-gold);
}

.page-top .breadcrumb [aria-current="page"] {
  color: rgba(255, 255, 255, 0.65);
}

/* ---------- 12. 章节头部 ---------- */
.section-head {
  display: flex;
  align-items: flex-end;
  gap: 20px;
  margin-bottom: 40px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--navy);
  position: relative;
}

.section-index {
  font-family: var(--font-num);
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
  letter-spacing: -0.02em;
}

.section-title {
  font-family: var(--font-head);
  font-size: 1.75rem;
  font-weight: 900;
  color: var(--navy);
  margin: 0;
}

.section-desc {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--slate);
  margin-left: auto;
  max-width: 40%;
  text-align: right;
  line-height: 1.6;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-head);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
  border-bottom: 2px solid var(--gold);
  padding-bottom: 4px;
  margin-bottom: 16px;
}

/* ---------- 13. 卡片 ---------- */
.card {
  background: var(--white);
  border: 1px solid rgba(8, 31, 55, 0.1);
  box-shadow: 0 1px 3px rgba(8, 31, 55, 0.06);
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease), transform 0.3s var(--ease);
  height: 100%;
}

.card:hover {
  border-color: var(--signal-red);
  box-shadow: 0 6px 16px rgba(8, 31, 55, 0.12);
}

.card-body {
  padding: 24px;
}

.card-title {
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 900;
  color: var(--navy);
  margin: 0 0 8px;
}

.card-meta {
  font-family: var(--font-num);
  font-size: 0.8rem;
  color: var(--slate);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

/* ---------- 14. 图片容器 ---------- */
.img-hero,
.img-landscape,
.img-portrait {
  position: relative;
  width: 100%;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(8, 31, 55, 0.95) 0%, rgba(29, 78, 216, 0.88) 55%, rgba(59, 130, 246, 0.72) 100%);
}

.img-hero { aspect-ratio: 16 / 7; }
.img-landscape { aspect-ratio: 16 / 9; }
.img-portrait { aspect-ratio: 3 / 4; }

.img-hero::before,
.img-landscape::before,
.img-portrait::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.05) 0, rgba(255, 255, 255, 0.05) 1px, transparent 1px, transparent 36px),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.04) 0, rgba(255, 255, 255, 0.04) 1px, transparent 1px, transparent 36px);
  pointer-events: none;
}

.img-hero::after,
.img-landscape::after,
.img-portrait::after {
  content: '';
  position: absolute;
  right: 6%;
  bottom: 8%;
  width: 30px;
  height: 30px;
  border: 2px solid var(--gold);
  transform: rotate(45deg);
  opacity: 0.85;
  z-index: 2;
  pointer-events: none;
}

.img-fill {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.img-speed {
  position: absolute;
  left: -10%;
  right: -10%;
  bottom: 0;
  height: 45%;
  background: linear-gradient(105deg, transparent 20%, rgba(245, 199, 106, 0.3) 50%, transparent 80%);
  clip-path: polygon(100% 0, 100% 24%, 0 100%, 0 74%);
  pointer-events: none;
  z-index: 1;
}

/* ---------- 15. 响应式 ---------- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }

  .footer-main {
    grid-template-columns: 1.4fr 1fr;
  }

  .footer-about {
    grid-column: 1 / -1;
    padding-bottom: 8px;
  }

  .footer-about::after {
    font-size: 110px;
    right: 20px;
    top: 0;
  }

  .section-desc {
    max-width: 50%;
  }
}

@media (max-width: 767px) {
  .header-top {
    gap: 12px;
    padding-top: 12px;
    padding-bottom: 12px;
  }

  .header-tagline {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    display: none;
  }

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

  .nav-list {
    flex-direction: column;
    padding: 4px 16px 12px;
  }

  .nav-list a {
    padding: 14px 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    font-size: 1.05rem;
  }

  .nav-list a::after {
    left: 16px;
    right: 16px;
    bottom: 8px;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 36px;
    padding-top: 40px;
    padding-bottom: 36px;
  }

  .footer-about {
    grid-column: auto;
  }

  .footer-bottom-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .section-head {
    flex-wrap: wrap;
    gap: 8px 16px;
  }

  .section-index {
    font-size: 2.5rem;
  }

  .section-title {
    font-size: 1.35rem;
  }

  .section-desc {
    margin-left: 0;
    max-width: 100%;
    text-align: left;
    margin-top: 4px;
  }

  .page-top {
    padding: 40px 0 48px;
  }
}

@media (max-width: 420px) {
  .brand-name {
    font-size: 1.125rem;
  }

  .brand {
    gap: 10px;
  }

  .header-badge {
    display: none;
  }

  .brand-mark {
    width: 38px;
    height: 40px;
    font-size: 19px;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0ms !important;
  }
}