/* ==========================================================================
   游艇会206网 — 共享样式表 /assets/site.css
   材质：粗边框 / 偏移硬阴影 / 旧纸张噪点 / 水面反光
   ========================================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

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%;
  height: auto;
}

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

a { color: inherit; }

:target { scroll-margin-top: 88px; }

/* ---------- 2. 变量 ---------- */
:root {
  /* 矿物色体系 —— 夜航码头 */
  --ink: #0A1118;          /* 极夜黑 */
  --deep: #102E45;         /* 深海蓝 */
  --deep-2: #14384F;       /* 深海蓝浅层 */
  --orange: #E3662A;       /* 船坞橙 */
  --yellow: #F0B429;       /* 信号黄 */
  --mist: #E6EDF1;         /* 海雾白 */
  --stone: #46545E;        /* 岩灰 */
  --moss: #5C7361;         /* 苔绿 */
  --clay: #B4623F;         /* 陶土 */
  --cream: #F4F0E8;        /* 米白 */
  --glint: #7FB6D9;        /* 水面反光 */

  --line: rgba(230, 237, 241, 0.16);
  --line-strong: rgba(230, 237, 241, 0.34);
  --mist-70: rgba(230, 237, 241, 0.72);
  --mist-50: rgba(230, 237, 241, 0.52);
  --mist-38: rgba(230, 237, 241, 0.38);

  --font-display: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", "Roboto Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --wrap: 1280px;
  --gap: 24px;
  --band-h: 64px;

  --shadow-hard: 6px 8px 0 rgba(0, 0, 0, 0.55);
  --shadow-hard-lg: 10px 12px 0 rgba(0, 0, 0, 0.6);
  --shadow-soft: 0 18px 44px rgba(0, 0, 0, 0.55);
}

/* ---------- 3. 中文排版基底 ---------- */
body {
  min-height: 100vh;
  background-color: var(--ink);
  color: var(--mist);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.75;
  letter-spacing: 0.005em;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

h1 {
  font-size: clamp(2.4rem, 6vw, 4.6rem);
  font-weight: 900;
  line-height: 1.04;
  letter-spacing: -0.03em;
}

h2 { font-size: clamp(1.5rem, 3.4vw, 2rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.375rem); }

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

strong { font-weight: 700; }

::selection {
  background: var(--orange);
  color: var(--ink);
}

/* ---------- 4. 通用工具类 ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: 24px;
}

.site-main { padding-top: var(--band-h); }

.prose { max-width: 68ch; }
.prose p { color: var(--mist-70); }

.grid {
  display: grid;
  gap: var(--gap);
}

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

.mono {
  font-family: var(--font-mono);
  font-weight: 500;
  letter-spacing: 0.08em;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--glint);
}

.eyebrow::before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--orange);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* 无障碍焦点 */
:focus-visible {
  outline: 3px solid var(--orange);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  top: -120px;
  left: 16px;
  z-index: 200;
  padding: 10px 18px;
  background: var(--yellow);
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.875rem;
  text-decoration: none;
  border: 2px solid var(--ink);
  box-shadow: var(--shadow-hard);
  transition: top 0.18s ease;
}

.skip-link:focus {
  top: 12px;
}

/* 正文链接 */
a.link {
  color: var(--mist);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-decoration-color: var(--mist-38);
  text-underline-offset: 3px;
  transition: color 0.16s ease, text-decoration-color 0.16s ease, text-decoration-thickness 0.16s ease;
}

a.link:hover {
  color: var(--orange);
  text-decoration-color: var(--orange);
  text-decoration-thickness: 3px;
}

/* ---------- 5. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border: 2px solid var(--mist);
  background: transparent;
  color: var(--mist);
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 4px 5px 0 rgba(0, 0, 0, 0.45);
  transition: transform 0.16s ease, box-shadow 0.16s ease,
              background-color 0.16s ease, color 0.16s ease, border-color 0.16s ease;
}

.btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 7px 0 rgba(0, 0, 0, 0.58);
}

.btn:active {
  transform: translate(1px, 1px);
  box-shadow: 2px 3px 0 rgba(0, 0, 0, 0.45);
}

.btn--primary {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink);
}

.btn--primary:hover {
  background: #f0763a;
  border-color: #f0763a;
}

.btn--light {
  background: var(--cream);
  border-color: var(--ink);
  color: var(--ink);
}

.btn--ghost {
  border-color: var(--line-strong);
  color: var(--mist-70);
  box-shadow: none;
}

.btn--ghost:hover {
  border-color: var(--orange);
  color: var(--orange);
  transform: translateX(4px);
  box-shadow: none;
}

.btn--sm {
  padding: 7px 14px;
  font-size: 0.8125rem;
}

/* ---------- 6. 页头：航迹线导航带 ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
}

.band {
  position: relative;
  background-color: transparent;
  border-bottom: 1px solid transparent;
  transition: background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.site-header[data-scrolled] .band {
  background-color: var(--ink);
  border-bottom-color: var(--line);
  box-shadow: 0 12px 34px rgba(0, 0, 0, 0.62);
}

/* 航迹虚线 */
.band::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background-image: repeating-linear-gradient(
    90deg,
    rgba(230, 237, 241, 0.22) 0 10px,
    transparent 10px 22px
  );
  opacity: 0.7;
  pointer-events: none;
}

.band__inner {
  position: relative;
  z-index: 95;
  display: flex;
  align-items: center;
  gap: 16px;
  width: 100%;
  max-width: var(--wrap);
  height: var(--band-h);
  margin-inline: auto;
  padding-inline: 24px;
}

/* 品牌 */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
  text-decoration: none;
  color: var(--mist);
}

.brand__mark {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--orange);
  border: 2px solid var(--orange);
  padding: 3px 6px;
  line-height: 1;
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand__name {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.brand__sub {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--mist-50);
}

/* 导航 */
.nav {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

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

.nav__link {
  position: relative;
  display: inline-block;
  padding: 8px 12px;
  color: var(--mist-70);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  transition: color 0.18s ease;
}

.nav__link::before {
  content: "";
  position: absolute;
  left: 10px;
  right: 10px;
  bottom: 2px;
  height: 3px;
  background: var(--orange);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.18s ease;
}

.nav__link:hover {
  color: var(--mist);
}

.nav__link:hover::before {
  transform: scaleX(1);
}

.nav__link[aria-current="page"] {
  color: var(--mist);
  font-weight: 700;
}

.nav__link[aria-current="page"]::before {
  transform: scaleX(1);
}

.nav__tail {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: 12px;
  padding-left: 14px;
  border-left: 1px solid var(--line);
}

/* 版本标签 */
.version-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  background: var(--yellow);
  color: var(--ink);
  border: 2px solid var(--ink);
  box-shadow: 3px 3px 0 rgba(0, 0, 0, 0.5);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1.5;
  text-decoration: none;
  transition: transform 0.16s ease, box-shadow 0.16s ease;
}

.version-badge:hover {
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 rgba(0, 0, 0, 0.6);
}

.version-badge__label {
  opacity: 0.72;
}

.version-badge__num {
  font-weight: 700;
}

/* 汉堡按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  margin-left: auto;
  padding: 9px 12px;
  background: transparent;
  border: 2px solid var(--line-strong);
  color: var(--mist);
  cursor: pointer;
  transition: border-color 0.18s ease, color 0.18s ease;
}

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

.nav-toggle__bars {
  position: relative;
  display: block;
  width: 20px;
  height: 14px;
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  background: currentColor;
  transition: transform 0.2s ease, top 0.2s ease;
}

.nav-toggle__bars::before { top: 1px; }
.nav-toggle__bars::after { top: 11px; }

.site-header[data-open] .nav-toggle__bars::before {
  top: 6px;
  transform: rotate(45deg);
}

.site-header[data-open] .nav-toggle__bars::after {
  top: 6px;
  transform: rotate(-45deg);
}

/* ---------- 7. 面板与材质组件 ---------- */
.panel {
  position: relative;
  padding: 32px;
  background-color: var(--deep);
  border: 2px solid var(--line-strong);
  box-shadow: var(--shadow-hard);
  transition: box-shadow 0.18s ease;
}

.panel::after {
  content: "";
  position: absolute;
  inset: -2px;
  border: 1px solid transparent;
  pointer-events: none;
  transition: border-color 0.18s ease;
}

.panel:hover {
  box-shadow: var(--shadow-hard-lg);
}

.panel:hover::after {
  border-color: var(--line-strong);
}

.panel--ink { background-color: var(--ink); }
.panel--moss { background-color: var(--moss); }
.panel--moss .prose p { color: rgba(244, 240, 232, 0.85); }

.panel__index {
  display: inline-block;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--orange);
}

/* 旧纸张 */
.paper {
  position: relative;
  padding: 32px;
  background-color: var(--cream);
  background-image:
    repeating-linear-gradient(0deg, rgba(10, 17, 24, 0.045) 0 1px, transparent 1px 4px),
    repeating-linear-gradient(90deg, rgba(10, 17, 24, 0.035) 0 1px, transparent 1px 4px);
  color: #1b2229;
  border: 2px solid #1b2229;
  box-shadow: var(--shadow-hard);
}

.paper h2,
.paper h3 { color: #111820; }
.paper p { color: #3a444e; }
.paper a.link {
  color: #1b2229;
  text-decoration-color: rgba(27, 34, 41, 0.35);
}
.paper a.link:hover {
  color: var(--clay);
  text-decoration-color: var(--clay);
}

/* 水面反光层 */
.glare {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(
    120% 85% at 78% 8%,
    rgba(127, 182, 217, 0.3),
    rgba(127, 182, 217, 0) 62%
  );
}

/* 标签 */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border: 1px solid currentColor;
  color: var(--glint);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  line-height: 1.5;
  text-transform: uppercase;
}

.tag--version { color: var(--yellow); }
.tag--archive { color: var(--clay); }
.tag--live { color: #8fbf9a; }

/* ---------- 8. 图像占位容器 ---------- */
.figure {
  position: relative;
  margin: 0;
  background-color: var(--deep);
  border: 2px solid var(--line-strong);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

.figure__media {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background-image:
    radial-gradient(110% 80% at 74% 10%, rgba(127, 182, 217, 0.34), rgba(127, 182, 217, 0) 60%),
    linear-gradient(150deg, #14384F 0%, #102E45 46%, #0A1118 100%);
}

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

.figure--wide .figure__media { aspect-ratio: 21 / 9; }
.figure--tall .figure__media { aspect-ratio: 3 / 4; }

.figure__caption {
  position: absolute;
  left: 0;
  bottom: 0;
  max-width: 100%;
  padding: 7px 14px;
  background-color: rgba(10, 17, 24, 0.86);
  border-top: 2px solid var(--orange);
  color: var(--mist-70);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  line-height: 1.6;
}

/* ---------- 9. 面包屑 ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--mist-50);
}

.breadcrumb a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.16s ease, border-color 0.16s ease;
}

.breadcrumb a:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.breadcrumb__sep {
  color: var(--stone);
}

.breadcrumb [aria-current="page"] {
  color: var(--mist);
}

/* ---------- 10. 折叠与标签页 ---------- */
details {
  border-left: 4px solid var(--line-strong);
  padding: 4px 0 4px 18px;
  transition: border-color 0.18s ease;
}

details[open] {
  border-left-color: var(--orange);
}

summary {
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--mist);
  padding: 8px 0;
  list-style: none;
}

summary::-webkit-details-marker { display: none; }

summary::after {
  content: "+";
  float: right;
  font-family: var(--font-mono);
  color: var(--orange);
}

details[open] summary::after { content: "–"; }

details > p,
details > ul {
  color: var(--mist-70);
  font-size: 0.9375rem;
}

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

.tab {
  padding: 7px 15px;
  background: transparent;
  border: 2px solid var(--line-strong);
  color: var(--mist-70);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: border-color 0.16s ease, color 0.16s ease, background-color 0.16s ease;
}

.tab:hover {
  border-color: var(--orange);
  color: var(--mist);
}

.tab[aria-selected="true"] {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink);
}

/* ---------- 11. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: 96px;
  background-color: var(--ink);
  color: var(--mist);
  overflow: hidden;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background-image: linear-gradient(
    90deg,
    transparent 0%,
    var(--orange) 18%,
    var(--yellow) 46%,
    var(--glint) 74%,
    transparent 100%
  );
  opacity: 0.85;
}

.footer__glow {
  position: absolute;
  inset: auto 0 0 0;
  height: 320px;
  pointer-events: none;
  background-image: radial-gradient(
    120% 100% at 22% 100%,
    rgba(16, 46, 69, 0.95),
    rgba(10, 17, 24, 0) 70%
  );
}

.footer__wrap {
  position: relative;
  z-index: 1;
  padding-block: 64px 28px;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.1fr 1.5fr;
  gap: 44px 32px;
}

.footer__col--brand {
  padding-right: 12px;
}

.brand--footer {
  color: var(--mist);
}

.footer__motto {
  margin: 18px 0 22px;
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--glint);
}

.footer__cta {
  box-shadow: 5px 6px 0 rgba(0, 0, 0, 0.6);
}

.footer__title {
  margin-bottom: 16px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--glint);
}

.footer__list {
  display: grid;
  gap: 10px;
  font-size: 0.9375rem;
}

.footer__link {
  display: inline-block;
  color: var(--mist-70);
  text-decoration: none;
  transition: color 0.16s ease, transform 0.16s ease;
}

.footer__link:hover {
  color: var(--orange);
  transform: translateX(4px);
}

.footer__list--plain li {
  color: var(--mist-70);
  font-size: 0.875rem;
  line-height: 1.6;
  word-break: break-all;
}

.footer__key {
  display: block;
  margin-bottom: 2px;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--mist-38);
}

.footer__meta,
.footer__note {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 0.875rem;
  color: var(--mist-50);
  line-height: 1.7;
}

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  margin-top: 52px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--mist-50);
}

.footer__legal {
  margin: 0;
}

.footer__legal--dim {
  color: var(--mist-38);
}

/* ---------- 12. 入场动画（仅一次） ---------- */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.js [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* ---------- 13. 响应式：平板 ---------- */
@media (max-width: 1080px) {
  .nav__link {
    padding: 8px 9px;
    font-size: 0.8125rem;
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px 32px;
  }

  .footer__col--brand {
    grid-column: 1 / -1;
  }
}

/* ---------- 14. 响应式：移动端导航 ---------- */
@media (max-width: 899px) {
  .band__inner {
    justify-content: space-between;
    gap: 12px;
    padding-inline: 16px;
  }

  .brand__sub { display: none; }

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

  .nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 90;
    display: block;
    margin: 0;
    max-height: 100vh;
    overflow-y: auto;
    padding: calc(var(--band-h) + 24px) 16px 32px;
    background-color: var(--ink);
    border-bottom: 2px solid var(--orange);
    box-shadow: 0 26px 52px rgba(0, 0, 0, 0.7);
    transform: translateY(-110%);
    visibility: hidden;
    transition: transform 0.24s cubic-bezier(0.2, 0.7, 0.3, 1), visibility 0.24s ease;
  }

  .nav[data-open] {
    transform: translateY(0);
    visibility: visible;
  }

  .nav__list {
    display: grid;
    gap: 0;
  }

  .nav__link {
    padding: 15px 10px;
    font-size: 1.0625rem;
    border-bottom: 1px solid var(--line);
  }

  .nav__link::before {
    left: auto;
    right: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    height: auto;
    transform: scaleY(0);
    transform-origin: top center;
    transition: transform 0.18s ease;
  }

  .nav__link:hover::before,
  .nav__link[aria-current="page"]::before {
    transform: scaleY(1);
  }

  .nav__tail {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 14px;
    margin: 28px 0 0;
    padding: 22px 0 0;
    border-left: 0;
    border-top: 1px solid var(--line);
  }
}

/* ---------- 15. 响应式：小屏 ---------- */
@media (max-width: 620px) {
  body { font-size: 16px; }

  .wrap { padding-inline: 18px; }

  h1 { font-size: clamp(2rem, 9vw, 2.8rem); }

  .panel,
  .paper {
    padding: 22px 18px;
    box-shadow: 4px 5px 0 rgba(0, 0, 0, 0.55);
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .footer__col--brand {
    grid-column: auto;
  }

  .footer__bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-footer { margin-top: 64px; }
}

/* ---------- 16. 桌面端正文放大 ---------- */
@media (min-width: 900px) {
  body { font-size: 17px; }
}

/* ---------- 17. 减少动效 ---------- */
@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;
  }

  .js [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
  }
}