/* =========================================================
   乐虎国游戏 · 共享层 /assets/site.css
   夜行虎的科技竞技场 · Bento 信息板 + 斜切换章
   ========================================================= */

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

:root {
  --ink-0: #0B0D14;
  --ink-1: #151A29;
  --ink-2: #242B3F;
  --orange: #FF6A00;
  --orange-deep: #B8410A;
  --violet: #6A3DF5;
  --violet-deep: #2A1A5E;
  --neon: #39FF88;
  --text: #F4F5F8;
  --text-dim: #9AA3BC;
  --paper: #EDE8DC;
  --paper-ink: #191B22;
  --paper-dim: #575750;

  --font-display: "HarmonyOS Sans SC", "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-body: var(--font-display);
  --font-editorial: "Source Han Serif SC", "Noto Serif SC", "Songti SC", "SimSun", Georgia, serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Courier New", monospace;

  --wrap: 1280px;
  --gut: clamp(20px, 4vw, 56px);
  --header-h: 76px;

  --ease: cubic-bezier(.22, .61, .36, 1);
  --seam-deg: 10deg;
}

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

body {
  margin: 0;
  min-height: 100%;
  background-color: var(--ink-0);
  background-image:
    linear-gradient(to right, rgba(36, 43, 63, .55) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(36, 43, 63, .55) 1px, transparent 1px);
  background-size: 80px 80px;
  background-position: -1px -1px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg, video, canvas { display: block; max-width: 100%; }
a { color: inherit; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
table { border-collapse: collapse; width: 100%; }

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

/* ---------- 跳转链接 ---------- */
.skip-link {
  position: absolute;
  left: var(--gut);
  top: -140px;
  z-index: 300;
  padding: 10px 20px;
  background: var(--orange);
  color: #0B0D14;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 14px;
  letter-spacing: .06em;
  text-decoration: none;
  transform: skewX(-8deg);
  transition: top .2s var(--ease);
}
.skip-link:focus { top: 12px; }

/* ---------- 顶部阅读进度 ---------- */
.scroll-progress {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 3px;
  z-index: 220;
  background: rgba(36, 43, 63, .8);
  pointer-events: none;
}
.scroll-progress__bar {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--orange-deep), var(--orange) 55%, var(--neon));
  transition: width .12s linear;
}

/* ---------- 顶栏 ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  background-color: transparent;
  border-bottom: 1px solid transparent;
  transition: background-color .28s var(--ease), border-color .28s var(--ease);
}
.site-header[data-scrolled] {
  background-color: #0B0D14;
  border-bottom-color: var(--ink-2);
}
.site-header[data-nav-open] {
  background-color: #0B0D14;
  border-bottom-color: var(--ink-2);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: clamp(12px, 1.6vw, 24px);
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gut);
  height: var(--header-h);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
  text-decoration: none;
  color: var(--text);
}
.brand__mark {
  width: 28px;
  height: 30px;
  flex: none;
  transform: skewX(-12deg);
  background:
    repeating-linear-gradient(102deg,
      var(--orange) 0 5px,
      var(--orange-deep) 5px 9px,
      var(--ink-1) 9px 15px);
  border: 1px solid var(--orange);
}
.brand__text { display: flex; flex-direction: column; line-height: 1.2; }
.brand__name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 20px;
  letter-spacing: .02em;
  transform: skewX(-4deg);
  transform-origin: left center;
}
.brand__line {
  font-family: var(--font-editorial);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--text-dim);
}

.utility-tag {
  padding-left: clamp(12px, 1.6vw, 24px);
  border-left: 1px solid var(--ink-2);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--text-dim);
  white-space: nowrap;
}

.primary-nav { margin-left: auto; }
.primary-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(10px, 2vw, 30px);
}
.primary-nav__item { display: block; }
.primary-nav__link {
  position: relative;
  display: inline-block;
  padding: 6px 2px;
  font-size: 14.5px;
  font-weight: 500;
  letter-spacing: .06em;
  color: var(--text-dim);
  text-decoration: none;
  transition: color .2s var(--ease);
}
.primary-nav__link::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 2px;
  background: var(--orange);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .24s var(--ease);
}
.primary-nav__link:hover { color: var(--text); outline: 2px solid var(--neon); outline-offset: 3px; }
.primary-nav__link:hover::after { transform: scaleX(1); }
.primary-nav__link:focus-visible { outline: 2px solid var(--neon); outline-offset: 3px; }
.primary-nav__link[aria-current="page"] { color: var(--text); }
.primary-nav__link[aria-current="page"]::after { transform: scaleX(1); }

/* ---------- 斜切按钮 ---------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 22px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 14px;
  letter-spacing: .08em;
  text-decoration: none;
  color: #0B0D14;
  border: 0;
  isolation: isolate;
  white-space: nowrap;
  transition: transform .18s var(--ease), color .18s var(--ease);
}
.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--btn-bg, var(--orange));
  transform: skewX(-10deg);
  z-index: -1;
  transition: box-shadow .18s var(--ease), background-color .18s var(--ease);
}
.btn:hover,
.btn:focus-visible { transform: translateX(2px); }
.btn:hover::before,
.btn:focus-visible::before { box-shadow: 0 0 0 2px var(--neon); }
.btn:focus-visible { outline: 2px solid var(--neon); outline-offset: 4px; }

.btn--slash { --btn-bg: var(--orange); }
.btn--violet { --btn-bg: var(--violet); color: #FFFFFF; }
.btn--ghost { --btn-bg: transparent; color: var(--text); }
.btn--ghost::before {
  background: transparent;
  border: 1px solid var(--orange);
  box-sizing: border-box;
}

.header-cta { flex: 0 0 auto; }

/* ---------- 移动导航按钮 ---------- */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  padding: 8px 12px;
  border: 1px solid var(--ink-2);
  color: var(--text);
  font-family: var(--font-editorial);
  font-size: 13px;
  letter-spacing: .12em;
  transition: border-color .2s var(--ease), color .2s var(--ease);
}
.nav-toggle:hover { border-color: var(--neon); color: var(--neon); }
.nav-toggle__bars {
  position: relative;
  display: block;
  width: 18px;
  height: 10px;
}
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--orange);
  transition: transform .22s var(--ease), background-color .22s var(--ease);
}
.nav-toggle__bars::before { top: 0; }
.nav-toggle__bars::after { bottom: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before { transform: translateY(4px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after { transform: translateY(-4px) rotate(-45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before,
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after { background: var(--neon); }

/* ---------- 页脚 ---------- */
.site-footer {
  position: relative;
  z-index: 1;
  margin-top: clamp(48px, 7vw, 96px);
  background-color: #090B11;
  border-top: 1px solid var(--ink-2);
}
.footer-stripe {
  height: 10px;
  background: repeating-linear-gradient(100deg,
    var(--orange) 0 22px,
    var(--orange-deep) 22px 34px,
    var(--ink-0) 34px 46px,
    var(--violet) 46px 58px,
    var(--ink-0) 58px 74px);
}
.site-footer__inner {
  display: grid;
  grid-template-columns: minmax(220px, 1.3fr) minmax(0, 2.7fr);
  gap: clamp(32px, 5vw, 72px);
  max-width: var(--wrap);
  margin-inline: auto;
  padding: clamp(44px, 6vw, 80px) var(--gut);
}
.footer-brand__name {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 26px;
  letter-spacing: .02em;
  color: var(--text);
  transform: skewX(-4deg);
  transform-origin: left center;
}
.footer-brand__line {
  margin-top: 10px;
  font-family: var(--font-editorial);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--text-dim);
}
.footer-brand__meta {
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--orange);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 40px);
}
.footer-col__title {
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--ink-2);
  font-family: var(--font-editorial);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--text);
}
.footer-col__list { display: grid; gap: 10px; }
.footer-col__link {
  display: inline-block;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-dim);
  text-decoration: none;
  word-break: break-word;
  transition: color .2s var(--ease);
}
.footer-col__link:hover,
.footer-col__link:focus-visible {
  color: var(--orange);
  outline: 2px solid var(--neon);
  outline-offset: 3px;
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 24px;
  max-width: var(--wrap);
  margin-inline: auto;
  padding: clamp(18px, 2.4vw, 28px) var(--gut);
  border-top: 1px solid var(--ink-2);
  font-size: 12.5px;
  color: var(--text-dim);
}
.footer-legal__icp {
  font-family: var(--font-editorial);
  letter-spacing: .08em;
  color: var(--text);
}
.footer-legal__closing { flex: 1 1 320px; }
.footer-legal__year { margin-left: auto; }

/* ---------- 返回顶部 ---------- */
.back-to-top {
  position: fixed;
  right: clamp(12px, 2vw, 28px);
  bottom: clamp(16px, 3vw, 32px);
  z-index: 180;
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--ink-1);
  border: 1px solid var(--ink-2);
  color: var(--text);
  font-family: var(--font-editorial);
  font-size: 17px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity .24s var(--ease), transform .24s var(--ease), visibility .24s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
}
.back-to-top[data-visible] { opacity: 1; visibility: visible; transform: none; }
.back-to-top:hover { border-color: var(--neon); color: var(--neon); }

/* ---------- 容器与段落 ---------- */
.container {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gut);
}
.container--narrow { max-width: 880px; }

.section {
  position: relative;
  padding-block: clamp(64px, 9vw, 132px);
}
.section--tight { padding-block: clamp(40px, 5.5vw, 76px); }
.section--paper { background-color: var(--paper); color: var(--paper-ink); }
.section--paper .lede { color: var(--paper-dim); }
.section--paper .eyebrow { color: var(--orange-deep); }
.section--paper .eyebrow::before { background: var(--orange-deep); }
.section--paper .rule { background: rgba(25, 27, 34, .18); }
.section--violet { background-color: var(--violet-deep); }

/* ---------- 斜切换章接缝 ---------- */
.seam {
  position: relative;
  height: clamp(44px, 7vw, 104px);
  background-color: var(--ink-0);
  clip-path: polygon(0 0, 100% 0, 100% 58%, 0 100%);
}
.seam--orange { background-color: var(--orange); }
.seam--violet { background-color: var(--violet-deep); }
.seam--flip { clip-path: polygon(0 0, 100% 42%, 100% 100%, 0 100%); }

/* ---------- 排版组件 ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-editorial);
  font-size: 12px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--orange);
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--orange);
  transform: skewX(-24deg);
}

.display {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(40px, 7vw, 88px);
  line-height: 1.04;
  letter-spacing: -.02em;
  color: var(--text);
  transform: skewX(-4deg);
  transform-origin: left center;
}
.display--sm { font-size: clamp(28px, 3.6vw, 40px); }
.section--paper .display { color: var(--paper-ink); }

.lede {
  max-width: 62ch;
  font-size: clamp(16px, 1.35vw, 19px);
  line-height: 1.85;
  color: var(--text-dim);
}

.rule {
  height: 1px;
  border: 0;
  margin: 0;
  background: var(--ink-2);
  position: relative;
}
.rule--orange::before {
  content: "";
  position: absolute;
  left: 0; top: 0;
  width: 64px;
  height: 1px;
  background: var(--orange);
}

.figure-num {
  position: relative;
  display: block;
  padding-right: 96px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(72px, 11vw, 168px);
  line-height: .78;
  letter-spacing: -.05em;
  color: var(--orange);
}
.figure-num::after {
  content: "";
  position: absolute;
  right: 0;
  top: 50%;
  width: 72px;
  height: 2px;
  background: var(--orange);
  transform: skewX(-24deg);
}
.figure-num--violet { color: var(--violet); }
.figure-num--violet::after { background: var(--violet); }

.tag {
  display: inline-block;
  font-family: var(--font-editorial);
  font-size: 11.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  font-family: var(--font-editorial);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--text);
  border: 1px solid var(--violet);
  background-color: rgba(106, 61, 245, .16);
}

.callout {
  padding: 18px 22px;
  border-left: 3px solid var(--orange);
  background-color: rgba(255, 106, 0, .07);
  color: var(--text-dim);
  font-size: 15px;
  line-height: 1.8;
}
.callout__label {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-editorial);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--orange);
}

.copy-field {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border: 1px dashed var(--ink-2);
  background-color: rgba(21, 26, 41, .7);
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text);
}
.copy-field__value { flex: 1 1 200px; word-break: break-all; }

/* ---------- Bento 信息板 ---------- */
.grid-bento {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 1px;
  background-color: var(--ink-2);
  border: 1px solid var(--ink-2);
}
.bento {
  position: relative;
  grid-column: span 12;
  padding: clamp(22px, 2.6vw, 38px);
  background-color: var(--ink-1);
}
.bento--focus::before {
  content: "";
  position: absolute;
  left: 0; top: 0;
  width: 56px;
  height: 3px;
  background: var(--orange);
}
.bento__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}
.bento__title {
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: clamp(19px, 2vw, 24px);
  letter-spacing: .02em;
  color: var(--text);
}
.bento__body {
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--text-dim);
}
@media (min-width: 760px) {
  .bento--focus { grid-column: span 7; }
  .bento--side { grid-column: span 5; }
  .bento--half { grid-column: span 6; }
  .bento--wide { grid-column: span 8; }
  .bento--third { grid-column: span 4; }
}

/* ---------- 编号步骤 ---------- */
.step-list {
  display: grid;
  gap: 1px;
  background-color: var(--ink-2);
  border: 1px solid var(--ink-2);
}
.step {
  display: grid;
  grid-template-columns: minmax(0, auto) minmax(0, 1fr);
  gap: clamp(18px, 3vw, 40px);
  align-items: start;
  padding: clamp(24px, 3vw, 40px);
  background-color: var(--ink-1);
}
.step__num {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(44px, 6vw, 80px);
  line-height: .8;
  letter-spacing: -.04em;
  color: var(--orange);
}
.step__title {
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: clamp(18px, 2vw, 22px);
  color: var(--text);
}
.step__text {
  margin-top: 8px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-dim);
}
@media (max-width: 560px) {
  .step { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- 扫描列表 ---------- */
.list-scan { display: grid; }
.list-scan__item {
  display: grid;
  grid-template-columns: minmax(0, auto) minmax(0, 1fr);
  gap: clamp(12px, 2vw, 24px);
  align-items: baseline;
  padding: 16px 0;
  border-bottom: 1px solid var(--ink-2);
}
.list-scan__item:first-child { border-top: 1px solid var(--ink-2); }
.list-scan__index {
  font-family: var(--font-editorial);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--orange);
  white-space: nowrap;
}

/* ---------- 侧栏章节目录 ---------- */
.chapter-rail {
  position: fixed;
  right: clamp(10px, 1.6vw, 28px);
  top: 50%;
  transform: translateY(-50%);
  z-index: 150;
  display: none;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
}
@media (min-width: 1100px) {
  .chapter-rail { display: flex; }
}
.chapter-rail__link {
  position: relative;
  display: block;
  padding: 2px 0 2px 14px;
  font-family: var(--font-editorial);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--text-dim);
  text-decoration: none;
  transition: color .25s var(--ease);
}
.chapter-rail__link::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: var(--ink-2);
  transition: background-color .25s var(--ease);
}
.chapter-rail__link:hover { color: var(--text); }
.chapter-rail__link[aria-current="true"] { color: var(--orange); }
.chapter-rail__link[aria-current="true"]::before { background: var(--orange); }

/* ---------- 面包屑 ---------- */
.breadcrumb { margin-bottom: 28px; }
.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-dim);
}
.breadcrumb__list li {
  display: flex;
  align-items: center;
  gap: 10px;
}
.breadcrumb__list li + li::before {
  content: "/";
  color: var(--ink-2);
}
.breadcrumb__link {
  color: var(--text-dim);
  text-decoration: none;
  transition: color .2s var(--ease);
}
.breadcrumb__link:hover { color: var(--orange); }
.breadcrumb__list [aria-current="page"] { color: var(--text); }

/* ---------- 图片容器 ---------- */
.media-frame {
  position: relative;
  display: block;
  overflow: hidden;
  background-color: var(--ink-1);
  border: 1px solid var(--ink-2);
}
.media-frame::after {
  content: "";
  position: absolute;
  right: 0; top: 0;
  width: 34px;
  height: 34px;
  background: var(--orange);
  clip-path: polygon(100% 0, 100% 100%, 0 0);
  opacity: .9;
  pointer-events: none;
}
.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(1) contrast(1.05);
  transition: filter .5s var(--ease);
}
.media-frame--16x9 { aspect-ratio: 16 / 9; }
.media-frame--4x3 { aspect-ratio: 4 / 3; }
.media-frame--1x1 { aspect-ratio: 1 / 1; }
.media-frame--phone { aspect-ratio: 9 / 19.5; max-width: 320px; }
.media-frame__caption {
  margin-top: 10px;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--text-dim);
}
.js [data-reveal]:not(.is-visible) .media-frame img { filter: saturate(.6) contrast(1.02); }
.js .media-frame[data-reveal]:not(.is-visible) img { filter: saturate(.6) contrast(1.02); }

/* ---------- 进场显现 ---------- */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .32s var(--ease), transform .32s var(--ease);
}
.js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- 响应式：顶栏 ---------- */
@media (max-width: 1023px) {
  .primary-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    margin-left: 0;
    padding: 6px var(--gut) 26px;
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
    background-color: #0B0D14;
    border-bottom: 1px solid var(--ink-2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity .24s var(--ease), transform .24s var(--ease), visibility .24s var(--ease);
    z-index: 190;
  }
  .primary-nav[data-open] {
    opacity: 1;
    visibility: visible;
    transform: none;
  }
  .primary-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  .primary-nav__link {
    display: block;
    padding: 16px 2px;
    border-bottom: 1px solid var(--ink-2);
    font-size: 17px;
  }
  .primary-nav__link::after { display: none; }
  .primary-nav__link[aria-current="page"] { color: var(--orange); }
  .nav-toggle { display: inline-flex; margin-left: auto; }
}

@media (max-width: 980px) {
  .site-footer__inner { grid-template-columns: minmax(0, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 560px) {
  .utility-tag { display: none; }
  .brand__line { display: none; }
  .brand__name { font-size: 18px; }
  .header-cta { padding: 9px 14px; font-size: 12.5px; letter-spacing: .04em; }
  .figure-num { padding-right: 56px; }
  .figure-num::after { width: 40px; }
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .footer-legal__year { margin-left: 0; }
}

/* ---------- 降低动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .scroll-progress__bar { transition: none; }
  .js [data-reveal] { opacity: 1; transform: none; }
  .js [data-reveal]:not(.is-visible) .media-frame img,
  .js .media-frame[data-reveal]:not(.is-visible) img { filter: saturate(1) contrast(1.05); }
}