/* ==========================================================================
   未来空间艺术 · 湖北美术学院微专业
   样式表按「设计变量 → 基础重置 → 区块组件 → 主题变体 → 响应式」分层组织。
   主题通过 .site 根节点的 theme-* 类名切换，只需替换变量即可换肤。
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. 设计变量：默认主题「深色沉浸」
   -------------------------------------------------------------------------- */
:root {
  --background: #090d12;
  --foreground: #f3f5f7;
  --muted: #19212b;
  --muted-foreground: #a5b0bf;
  --border: #ffffff24;
  --accent: #bbd9ff;
  --radius: 0rem;
}

/* 主题 02「浅色美术馆」 */
.theme-gallery {
  --background: #f6f5f1;
  --foreground: #252721;
  --muted: #ecebe5;
  --muted-foreground: #696b62;
  --border: #282b232b;
  --accent: #5b6544;
}

/* 主题 03「实验艺术」 */
.theme-lab {
  --background: #e5ff46;
  --foreground: #151810;
  --muted: #d1e947;
  --muted-foreground: #4d552c;
  --border: #15181040;
  --accent: #343b12;
}

/* --------------------------------------------------------------------------
   2. 基础重置与全局排版
   -------------------------------------------------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 24px;
}

body {
  margin: 0;
  background: var(--background);
  font-family: Arial, "Microsoft YaHei", sans-serif;
  color: var(--foreground);
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  color: inherit;
  cursor: pointer;
}

button:disabled { cursor: not-allowed; }

button,
a { touch-action: manipulation; }

:is(a, button):focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 5px;
}

p { line-height: 1.9; }

h1, h2, h3, h4, p { margin: 0; }

img { display: block; max-width: 100%; }

/* 跳转链接：仅键盘聚焦时可见 */
.skip-link {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 99;
  padding: 10px 16px;
  background: var(--foreground);
  color: var(--background);
  font-size: 14px;
  transition: top .2s;
}
.skip-link:focus { top: 12px; }

/* --------------------------------------------------------------------------
   3. 站点骨架
   -------------------------------------------------------------------------- */
.site {
  display: block;
  background: var(--background);
  color: var(--foreground);
  --line: var(--border);
}

.section {
  padding: 100px 6%;
  scroll-margin-top: 15px;
}

.eyebrow {
  letter-spacing: 2px;
  font-size: 12px;
  font-weight: 500;
}

h2 {
  letter-spacing: -1px;
  font-size: clamp(28px, 3.3vw, 48px);
  font-weight: 500;
  line-height: 1.4;
}

/* --------------------------------------------------------------------------
   4. 视觉方向预览条
   -------------------------------------------------------------------------- */
.preview-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  min-height: 52px;
  padding: 8px 3.5%;
  background: #edf0f4;
  color: #202a36;
  font-size: 14px;
}

.style-tabs {
  display: flex;
  gap: 3px;
  padding: 3px;
  border-radius: 6px;
  background: #dce1e9;
}

.style-tabs button {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 34px;
  padding: 7px 16px;
  border: 0;
  border-radius: 4px;
  background: transparent;
  color: #4a5360;
  font-size: 14px;
  transition: background .2s, color .2s;
}

.style-tabs button b { font-weight: 500; }
.style-tabs button:hover { color: #172333; }

.style-tabs button[aria-selected="true"] {
  background: #172333;
  color: #fff;
}

.preview-note {
  color: #616b77;
  font-size: 12px;
}

/* --------------------------------------------------------------------------
   5. 顶部导航
   -------------------------------------------------------------------------- */
.navigation {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 96px;
  padding: 0 5%;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
  letter-spacing: 1px;
  font-size: 17px;
}

.brand-mark {
  padding-right: 19px;
  border-right: 1px solid var(--line);
  letter-spacing: -3px;
  font-size: 28px;
}

.brand small {
  display: block;
  margin-top: 7px;
  letter-spacing: 1px;
  color: var(--muted-foreground);
  font-size: 12px;
}

nav {
  display: flex;
  align-items: center;
  gap: 36px;
  font-size: 14px;
}

nav a { opacity: .85; transition: opacity .2s; }
nav a:hover { opacity: 1; }

nav a.current { opacity: 1; text-decoration: underline; text-underline-offset: 6px; }

.nav-apply {
  padding: 10px 0;
  border-bottom: 1px solid;
}

/* --------------------------------------------------------------------------
   6. 首屏 Hero
   -------------------------------------------------------------------------- */
.hero-panel { font-size: 16px; }

.hero {
  --mx: 0px;
  --my: 0px;
  position: relative;
  height: calc(100svh - 148px);
  min-height: 690px;
  max-height: 1050px;
  overflow: hidden;
}

.hero-image {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

/* <picture> 默认 inline，需撑满容器才能正确裁切 */
.hero-image picture {
  display: block;
  width: 100%;
  height: 100%;
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 65% center;
  transform: scale(1.04) translate(var(--mx), var(--my));
  transition: transform 1s;
  animation: 1.6s both arrive;
}

/* 左侧压暗，保证文字可读 */
.hero-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, #060a1099, #0000 75%);
}

.hero-copy {
  position: relative;
  z-index: 2;
  width: 65%;
  padding: 100px 5% 130px;
}

.hero .eyebrow { color: #b6c7df; }

.hero h1 {
  margin: 28px 0;
  letter-spacing: -5px;
  font-size: clamp(64px, 7.8vw, 120px);
  font-weight: 500;
  line-height: 1.18;
  white-space: nowrap;
}

.hero-description {
  color: #c6ced8;
  font-size: 16px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 32px;
  margin-top: 36px;
  font-size: 14px;
}

.primary-link {
  display: inline-flex;
  align-items: center;
  gap: 32px;
  padding: 18px 22px;
  background: #d7e7fc;
  color: #13243a;
}

.hero-bottom {
  position: absolute;
  z-index: 3;
  left: 5%;
  right: 5%;
  bottom: 26px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  color: #c2cbd7;
  font-size: 12px;
}

.hero-bottom button {
  padding: 9px 14px;
  background: transparent;
  border: 1px solid #ffffff45;
  color: inherit;
}

.edition {
  position: absolute;
  top: 40px;
  right: 5%;
  color: #b8c6d8;
  letter-spacing: 2px;
  font-size: 12px;
  line-height: 1.7;
  text-align: right;
}

/* --------------------------------------------------------------------------
   7. 课程总览
   -------------------------------------------------------------------------- */
.overview {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8%;
  border-bottom: 1px solid var(--line);
}

.section-heading h2 { margin-top: 22px; }
.section-heading h2 span { color: var(--muted-foreground); }

.overview-copy > p {
  color: var(--muted-foreground);
  font-size: 17px;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 36px;
}

.stats strong {
  display: block;
  font-size: 42px;
  font-weight: 400;
}

.stats span {
  color: var(--muted-foreground);
  font-size: 14px;
}

.section-line {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 20px;
  margin-bottom: 45px;
}

.section-line > span {
  color: var(--muted-foreground);
  font-size: 14px;
}

.section-line .eyebrow { margin-bottom: 16px; }

/* --------------------------------------------------------------------------
   8. 课程列表
   -------------------------------------------------------------------------- */
.course {
  display: grid;
  grid-template-columns: 100px minmax(0, 1fr);
  align-items: center;
  gap: 35px;
  padding: 32px 0;
  border-top: 1px solid var(--line);
}

.course-index {
  align-self: start;
  font-size: 30px;
  font-weight: 300;
}

.course-index small {
  display: block;
  margin-top: 10px;
  color: var(--muted-foreground);
  font-size: 12px;
}

.course-kicker {
  color: var(--accent);
  letter-spacing: 2px;
  font-size: 12px;
}

.course h3 {
  margin: 8px 0 12px;
  font-size: 24px;
  font-weight: 500;
}

.course h3 small { font-size: 16px; }

.course-body > p:not(.course-kicker) {
  max-width: 610px;
  color: var(--muted-foreground);
  font-size: 16px;
}

.course-meta {
  margin-top: 20px;
  font-size: 14px;
}

.course-meta span {
  margin: 0 18px;
  color: var(--muted-foreground);
}

.small-note {
  margin-top: 26px;
  color: var(--muted-foreground);
  font-size: 12px;
}

/* --------------------------------------------------------------------------
   9. 教师队伍
   -------------------------------------------------------------------------- */
.faculty-carousel {
  position: relative;
  display: grid;
  grid-template-columns: minmax(220px, 300px) minmax(0, 1fr);
  align-items: stretch;
  gap: 7%;
}

.portrait-placeholder {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 10px;
  aspect-ratio: 3 / 4;
  border: 1px dashed var(--line);
  color: var(--muted-foreground);
}

/* 有照片时：图片铺满占位框，占位文字隐藏 */
.portrait-placeholder img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.portrait-placeholder.has-photo { border-style: solid; }

.portrait-placeholder.has-photo > span,
.portrait-placeholder.has-photo > small { display: none; }

.portrait-placeholder > span {
  color: var(--foreground);
  font-size: clamp(48px, 7vw, 96px);
  font-weight: 300;
  line-height: 1;
}

.portrait-placeholder small { font-size: 12px; }

.faculty-info {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.faculty-info > p:not(.eyebrow) { color: var(--muted-foreground); }

.faculty-info h3 {
  margin: 16px 0 30px;
  font-size: clamp(30px, 4vw, 54px);
}

.faculty-info dl { margin: 0; }

.faculty-info dl > div {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 25px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

.faculty-info dt {
  color: var(--muted-foreground);
  font-size: 13px;
}

.faculty-info dd {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
}

.carousel-controls {
  position: absolute;
  top: -86px;
  right: 0;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 4px;
  padding: 5px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--muted); /* 不支持 color-mix 的浏览器回退 */
  background: color-mix(in srgb, var(--foreground) 8%, transparent);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  box-shadow: 0 8px 30px #00000018;
}

.carousel-controls > span {
  display: flex;
  justify-content: center;
  align-items: center;
  min-width: 64px;
  height: 40px;
  color: var(--muted-foreground);
  font-size: 12px;
}

.carousel-controls strong {
  margin-right: 3px;
  color: var(--foreground);
  font-size: 14px;
  font-weight: 500;
}

.carousel-controls button {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: var(--muted); /* 不支持 color-mix 的浏览器回退 */
  background: color-mix(in srgb, var(--foreground) 9%, transparent);
  color: inherit;
  font-size: 25px;
  transition: transform .2s, background .2s;
}

.carousel-controls button:hover {
  background: color-mix(in srgb, var(--foreground) 17%, transparent);
  transform: scale(1.04);
}

.carousel-controls button:active { transform: scale(.94); }

.carousel-controls button > span {
  line-height: 1;
  transform: translateY(-1px);
}

.carousel-controls .play-icon {
  letter-spacing: -2px;
  font-size: 11px;
  transform: none;
}

.teacher-dots {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 11px;
  margin-top: 42px;
}

.teacher-dots button {
  display: grid;
  place-items: center;
  width: 20px;
  height: 30px;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--muted-foreground);
  font-size: 12px;
}

.teacher-dots button > span {
  display: block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--muted-foreground);
  opacity: .38;
  transition: width .3s, opacity .3s, background .3s;
}

.teacher-dots button:hover > span { opacity: .7; }

.teacher-dots button.active > span {
  width: 20px;
  border-radius: 99px;
  background: var(--foreground);
  opacity: 1;
}

/* --------------------------------------------------------------------------
   10. 选读与申请
   -------------------------------------------------------------------------- */
.application {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10%;
}

.application-intro h2 { margin: 25px 0; }

.application-intro > p:not(.eyebrow) {
  margin-bottom: 30px;
  color: var(--muted-foreground);
}

.pending {
  display: flex;
  justify-content: space-between;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}

.pending strong {
  color: var(--muted-foreground);
  font-weight: 400;
}

.download {
  width: 100%;
  margin-top: 26px;
  padding: 17px;
  background: var(--muted);
  color: var(--muted-foreground);
  border: 1px solid var(--line);
  text-align: left;
}

.requirements h3 {
  margin-bottom: 20px;
  font-size: 24px;
  font-weight: 500;
}

.requirements ol {
  padding-left: 24px;
  list-style: decimal;
}

.requirements li { padding: 0 0 22px 10px; }

.requirements li::marker {
  color: var(--muted-foreground);
  font-size: 14px;
}

.requirements strong {
  font-size: 16px;
  font-weight: 500;
}

.requirements strong span {
  margin-left: 8px;
  padding: 3px 7px;
  border: 1px solid var(--line);
  color: var(--muted-foreground);
  font-size: 12px;
}

.requirements li p,
.submit-info p {
  margin-top: 8px;
  color: var(--muted-foreground);
  font-size: 16px;
}

.submit-info {
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.submit-info h4 { margin: 0; }

.submit-info > span {
  display: block;
  margin-top: 20px;
  color: var(--muted-foreground);
  font-size: 12px;
}

.mail-format {
  padding: 14px;
  background: var(--muted);
  overflow-wrap: anywhere;
}

/* --------------------------------------------------------------------------
   11. 页脚
   -------------------------------------------------------------------------- */
footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 32px 6%;
  border-top: 1px solid var(--line);
  font-size: 14px;
}

footer small {
  display: block;
  margin-top: 8px;
  letter-spacing: 2px;
  font-size: 12px;
}

footer p {
  color: var(--muted-foreground);
  font-size: 12px;
}

/* --------------------------------------------------------------------------
   12. 主题变体：02 浅色美术馆
   -------------------------------------------------------------------------- */
.theme-gallery .hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  height: auto;
  min-height: 760px;
  padding-bottom: 85px;
}

.theme-gallery .hero-image {
  grid-area: 1 / 2;
  position: relative;
  inset: auto;
  height: 530px;
  margin: 65px 10% 30px 0;
}

.theme-gallery .hero-image img {
  object-position: 75%;
  transform: translate(var(--mx), var(--my)) scale(1.08);
}

.theme-gallery .hero-image::after { display: none; }

.theme-gallery .hero-copy {
  grid-area: 1 / 1;
  width: 100%;
  padding: 50px 12%;
}

.theme-gallery h1 {
  font-family: "Songti SC", SimSun, serif;
  letter-spacing: -3px;
  font-size: clamp(60px, 6.3vw, 96px);
}

.theme-gallery .hero .eyebrow,
.theme-gallery .hero-description,
.theme-gallery .hero-bottom,
.theme-gallery .edition { color: #64695d; }

.theme-gallery .hero .eyebrow span {
  display: block;
  margin-top: 5px;
}

.theme-gallery .primary-link {
  background: #30372c;
  color: #fff;
}

.theme-gallery .hero-bottom button { border-color: #30372c50; }
.theme-gallery .edition { top: 25px; right: 5%; }
.theme-gallery .course { padding: 40px 0; }

.theme-gallery .section-heading h2,
.theme-gallery .application h2 {
  font-family: "Songti SC", SimSun, serif;
}

/* --------------------------------------------------------------------------
   13. 主题变体：03 实验艺术
   -------------------------------------------------------------------------- */
.theme-lab .navigation { background: #e5ff46; }

.theme-lab .hero {
  background: #e5ff46;
  min-height: 750px;
}

.theme-lab .hero-image {
  inset: 12% 7% 13% 43%;
  border: 10px solid #13190c;
  transform: rotate(-8deg);
}

.theme-lab .hero-image::after { display: none; }

.theme-lab .hero-image img {
  animation: 10s ease-in-out infinite alternate labfloat;
}

.theme-lab .hero-copy {
  width: 100%;
  padding-top: 65px;
  pointer-events: none;
}

.theme-lab .hero-copy a { pointer-events: auto; }

.theme-lab h1 {
  margin-top: 36px;
  max-width: none;
  letter-spacing: -8px;
  color: #10140b;
  text-shadow: 2px 2px #e5ff46;
  font-size: clamp(68px, 7.2vw, 112px);
  font-weight: 900;
  line-height: 1.03;
}

.theme-lab .hero-description {
  display: inline-block;
  margin-top: 20px;
  padding: 8px 14px 8px 0;
  background: #e5ff46;
  color: #202710;
}

.theme-lab .hero .eyebrow,
.theme-lab .hero-bottom,
.theme-lab .edition { color: #252b12; }

.theme-lab .primary-link {
  background: #161d0e;
  color: #e5ff46;
}

.theme-lab .hero-bottom button { border-color: #15181060; }

.theme-lab .course-index {
  font-size: 46px;
  font-weight: 800;
}

.theme-lab .overview {
  background: #151a11;
  color: #e5ff46;
  --muted-foreground: #abb78f;
}

/* --------------------------------------------------------------------------
   14. 动画
   -------------------------------------------------------------------------- */
@keyframes arrive {
  from { opacity: .4; filter: blur(6px); }
  to   { opacity: 1; filter: blur(0); }
}

@keyframes labfloat {
  from { transform: scale(1.06) translate(-4px, -5px); }
  to   { transform: scale(1.13) translate(10px, 8px); }
}

@keyframes teacherIn {
  from { opacity: 0; filter: blur(3px); transform: translate(20px); }
  to   { opacity: 1; filter: blur(0); transform: translate(0); }
}

.teacher-transition {
  animation: .42s cubic-bezier(.22, 1, .36, 1) both teacherIn;
}

/* 动效暂停：.still 由 JS 挂在 .site 上 */
.still .hero-image img {
  animation: none !important;
  transform: scale(1.04) !important;
}

/* --------------------------------------------------------------------------
   15. 响应式
   -------------------------------------------------------------------------- */
@media (min-width: 1600px) {
  .section {
    padding-left: max(6%, 50vw - 725px);
    padding-right: max(6%, 50vw - 725px);
  }
}

@media (max-width: 900px) {
  .preview-note { display: none; }

  .hero-copy { width: 85%; padding-top: 100px; }
  .hero h1 { font-size: 80px; }
  .hero-image img { object-position: 70%; }
  .hero-image::after { background: linear-gradient(90deg, #060a10c9, #0000); }

  .section { padding: 65px 5%; }

  .overview,
  .application { gap: 5%; }

  .course { grid-template-columns: 65px minmax(0, 1fr); gap: 20px; }

  .hero-bottom { flex-wrap: wrap; }

  .theme-gallery .hero-image { height: 470px; }
  .theme-gallery .hero h1 { font-size: 60px; }
  .theme-lab h1 { font-size: 105px; }
  .theme-lab .hero-image { left: 35%; }

  .faculty-carousel { grid-template-columns: 220px minmax(0, 1fr); }

  .carousel-controls {
    position: static;
    grid-column: 1 / -1;
    justify-self: end;
    margin-top: 22px;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .theme-gallery h1 { font-size: clamp(42px, 5vw, 60px); }
}

@media (max-width: 600px) {
  .preview-bar {
    flex-direction: column;
    gap: 6px;
    padding: 8px;
  }

  .preview-bar > span { font-size: 12px; }

  .style-tabs { width: 100%; }
  .style-tabs button { padding: 6px 9px; font-size: 12px; }

  .navigation {
    flex-wrap: wrap;
    align-items: start;
    gap: 16px;
    height: 110px;
    padding: 18px 5%;
  }

  .brand { font-size: 14px; }
  .brand-mark { font-size: 23px; }
  .brand small { margin-top: 3px; font-size: 12px; }

  nav {
    justify-content: flex-end;
    gap: 24px;
    width: 100%;
    font-size: 14px;
  }

  .nav-apply { border: 0; padding: 0; }

  .hero { height: 720px; min-height: 0; }

  .hero-copy { width: 100%; padding: 75px 5% 160px; }

  .hero h1,
  .theme-gallery .hero h1,
  .theme-lab .hero h1 {
    letter-spacing: -3px;
    font-size: clamp(40px, 13vw, 58px);
  }

  .hero-image img { object-position: 65%; }

  .hero-image::after {
    background:
      linear-gradient(90deg, #060a10d9, #060a1040),
      linear-gradient(#0000 65%, #060a10);
  }

  .hero .eyebrow { letter-spacing: 1px; font-size: 12px; }
  .hero .eyebrow span { display: none; }
  .hero-description { font-size: 16px; }

  .hero-bottom { gap: 18px; bottom: 25px; font-size: 12px; }
  .hero-bottom > span { width: 100%; }
  .edition { top: 24px; font-size: 12px; }

  .hero-actions { gap: 22px; }
  .primary-link { padding: 16px; }

  .overview,
  .application { grid-template-columns: 1fr; gap: 32px; }

  .overview-copy > p { font-size: 16px; }
  .stats strong { font-size: 35px; }

  .section-line {
    flex-direction: column;
    align-items: start;
    margin-bottom: 28px;
  }

  .course { grid-template-columns: 42px minmax(0, 1fr); gap: 15px; }
  .course-index { font-size: 24px; }
  .course-index small { font-size: 12px; }
  .course h3 { font-size: 20px; }
  .course-body > p:not(.course-kicker) { font-size: 16px; }

  .portrait-placeholder { width: 100%; max-width: 260px; }
  .faculty-info dl > div { grid-template-columns: 1fr; gap: 7px; }

  .faculty-carousel { grid-template-columns: 1fr; }
  .carousel-controls { grid-column: auto; justify-self: start; }

  .teacher-dots {
    display: grid;
    grid-template-columns: repeat(10, 20px);
    justify-content: start;
    gap: 5px;
  }

  .requirements { margin-top: 15px; }

  .theme-gallery .hero {
    display: flex;
    flex-direction: column;
    min-height: 0;
    padding-bottom: 115px;
  }

  .theme-gallery .hero-copy { order: 0; padding: 40px 6% 25px; }
  .theme-gallery .hero h1 { font-size: 58px; }
  .theme-gallery .hero h1 span { display: block; }
  .theme-gallery .hero-image { order: 1; width: 88%; height: 310px; margin: 0 6%; }
  .theme-gallery .hero .eyebrow span,
  .theme-gallery .edition { display: none; }
  .theme-gallery .hero-actions { margin-top: 20px; }

  .theme-lab .hero { min-height: 770px; }
  .theme-lab .hero h1 { letter-spacing: -4px; font-size: clamp(58px, 15vw, 77px); }
  .theme-lab .hero h1 span { margin-left: 0; }
  .theme-lab .hero-copy { padding-top: 55px; }
  .theme-lab .hero-image { border-width: 5px; inset: 41% 8% 15% 25%; }
  .theme-lab .hero-description { margin-top: 15px; font-size: 16px; }
  .theme-lab .hero-actions { margin-top: 25px; }
  .theme-lab .edition { display: none; }

  footer { flex-wrap: wrap; }
  footer p { order: 3; width: 100%; }
  .mail-format { font-size: 14px; }
}

/* --------------------------------------------------------------------------
   16. 无障碍：尊重系统的「减少动效」偏好
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }

  .hero-image img { transform: scale(1.04) !important; }
}