/* =========================================================
   PLUM921 · 像素小屋
   风格：复古像素 / 低饱和红 + 米白
   字体：方舟像素字体 Ark Pixel Font (SIL OFL 1.1)
   目录：变量 → 基础 → 通用组件 → 顶栏 → Hero → 区块 → 卡片 → 弹层 → 响应式
   ========================================================= */

/* ---------------- 1. 字体 ---------------- */
@font-face {
  font-family: "Ark Pixel";
  src: url("../fonts/ark-pixel-12px-proportional-latin.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-02FF, U+1E00-1EFF, U+2000-206F, U+2070-209F,
                 U+20A0-20CF, U+2100-214F, U+2190-21FF, U+2200-22FF,
                 U+2460-24FF, U+25A0-25FF, U+2600-26FF, U+2700-27BF;
}
@font-face {
  font-family: "Ark Pixel";
  src: url("../fonts/ark-pixel-12px-proportional-zh-hans.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
  unicode-range: U+2E80-2EFF, U+3000-303F, U+31C0-31EF, U+3200-32FF,
                 U+3300-33FF, U+3400-4DBF, U+4E00-9FFF, U+F900-FAFF,
                 U+FE10-FE1F, U+FE30-FE4F, U+FF00-FFEF, U+20000-2FA1F;
}

/* ---------------- 2. 变量 ---------------- */
:root {
  /* 米白 / 纸面 */
  --cream:       #F3EBDE;
  --cream-soft:  #ECE1D0;
  --paper:       #FBF6EC;
  --paper-2:     #F6EFE2;

  /* 低饱和红 */
  --red:         #B4575D;
  --red-deep:    #8B3A43;
  --red-soft:    #D5A3A5;
  --red-wash:    #EFDCDA;

  /* 点缀色 */
  --mustard:     #C69A57;
  --sage:        #8CA08B;

  /* 墨色文字 */
  --ink:         #3A2E2B;
  --ink-2:       #6E5E58;
  --ink-3:       #9A8A82;

  /* 硬阴影 */
  --shadow:      #D6C3AE;
  --shadow-red:  #D9B7B7;

  --px:          4px;         /* 像素单位 */
  --line:        4px solid var(--ink);
  --wrap:        1120px;

  --fs-xs:       12px;
  --fs-md:       24px;
  --fs-lg:       36px;
  --fs-xl:       48px;
  --lh:          24px;
}

/* ---------------- 3. 基础 ---------------- */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background-color: var(--cream);
  /* 双层像素点阵背景 */
  background-image:
    radial-gradient(var(--shadow) 1.5px, transparent 1.6px),
    radial-gradient(var(--shadow) 1.5px, transparent 1.6px);
  background-size: 24px 24px, 24px 24px;
  background-position: 0 0, 12px 12px;
  color: var(--ink);
  font-family: "Ark Pixel", "Ark Pixel 12px Proportional", ui-monospace, monospace;
  font-size: var(--fs-xs);
  line-height: var(--lh);
  letter-spacing: .04em;
  -webkit-font-smoothing: none;
  -moz-osx-font-smoothing: unset;
  font-smooth: never;
  text-rendering: geometricPrecision;
  overflow-x: clip;
}

/* 顶部一条暖色高光，模拟老显示器 */
body::before {
  content: "";
  position: fixed;
  inset: 0 0 auto 0;
  height: 5px;
  z-index: 60;
  background: linear-gradient(90deg,
    var(--red-deep), var(--red), var(--mustard), var(--red-soft));
}

img { max-width: 100%; display: block; }
a { color: var(--red-deep); text-decoration: none; }
a:hover { color: var(--red); }
button { font: inherit; color: inherit; letter-spacing: inherit; cursor: pointer; }

h1, h2, h3, p, ul, figure { margin: 0; padding: 0; }
ul { list-style: none; }

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

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

code {
  font-family: inherit;
  background: var(--red-wash);
  border: 2px solid var(--red-soft);
  padding: 0 4px;
}

/* CRT 扫描线 */
.crt {
  position: fixed;
  inset: 0;
  z-index: 999;
  pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    rgba(58, 46, 43, .05) 0 1px,
    transparent 1px 3px
  );
}

/* ---------------- 4. 通用组件 ---------------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px;
}

/* 像素描边面板 + 四角像素块 */
.px-frame {
  position: relative;
  background: var(--paper);
  border: var(--line);
  box-shadow: 8px 8px 0 var(--shadow);
}
.px-corners::after {
  content: "";
  position: absolute;
  inset: -8px;
  pointer-events: none;
  z-index: 2;
  background-image:
    linear-gradient(var(--red), var(--red)),
    linear-gradient(var(--red), var(--red)),
    linear-gradient(var(--red), var(--red)),
    linear-gradient(var(--red), var(--red));
  background-size: 8px 8px;
  background-position: 0 0, 100% 0, 0 100%, 100% 100%;
  background-repeat: no-repeat;
}

/* 纯像素描边的小方块（作装饰） */
.dot {
  display: inline-block;
  width: 8px; height: 8px;
  background: var(--red);
  vertical-align: middle;
}

/* 按钮 */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  min-height: 44px;
  background: var(--paper);
  border: var(--line);
  box-shadow: 4px 4px 0 var(--ink);
  color: var(--ink);
  font-size: var(--fs-xs);
  letter-spacing: .12em;
  transition: transform .06s steps(2), box-shadow .06s steps(2), background .06s;
}
.btn:hover { transform: translate(-2px, -2px); box-shadow: 6px 6px 0 var(--ink); color: var(--ink); }
.btn:active { transform: translate(4px, 4px); box-shadow: 0 0 0 var(--ink); }
.btn--primary { background: var(--red); color: var(--paper); }
.btn--primary:hover { background: var(--red-deep); color: var(--paper); }
.btn__arrow {
  width: 0; height: 0;
  border: 6px solid transparent;
  border-left-color: currentColor;
  border-right: 0;
}

/* 区块 */
.section { padding: 96px 0; scroll-margin-top: 96px; }
.hero { scroll-margin-top: 96px; }
.section--alt {
  background: var(--paper-2);
  border-top: var(--line);
  border-bottom: var(--line);
}
.sec-head { margin-bottom: 32px; }
.sec-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: var(--fs-lg);
  font-weight: 400;
  letter-spacing: .08em;
  line-height: 48px;
}
.sec-title__mark {
  width: 20px; height: 20px;
  background:
    linear-gradient(var(--red), var(--red)) 0 0 / 20px 4px no-repeat,
    linear-gradient(var(--red), var(--red)) 0 8px / 12px 4px no-repeat,
    linear-gradient(var(--red), var(--red)) 0 16px / 20px 4px no-repeat;
  flex: 0 0 auto;
}
.sec-sub {
  margin-top: 8px;
  color: var(--ink-2);
  letter-spacing: .06em;
}
.sub-title {
  display: inline-block;
  margin: 32px 0 20px;
  padding: 4px 12px;
  font-size: var(--fs-xs);
  font-weight: 400;
  letter-spacing: .16em;
  color: var(--paper);
  background: var(--ink);
}

/* 提示条 */
.hint {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-top: 32px;
  padding: 12px 16px;
  background: var(--paper);
  border: 2px dashed var(--red-soft);
  color: var(--ink-2);
}
.hint__key {
  flex: 0 0 auto;
  padding: 2px 8px;
  background: var(--mustard);
  color: var(--paper);
  letter-spacing: .1em;
}

/* 滚动进入动画（仅在 JS 正常时启用，保证无 JS 也能看到全部内容） */
.has-js .reveal { opacity: 0; transform: translateY(16px); }
.has-js .reveal.is-in {
  opacity: 1;
  transform: none;
  transition: opacity .28s steps(6), transform .28s steps(6);
}

/* ---------------- 5. 顶栏 ---------------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--cream);
  border-bottom: var(--line);
}
.topbar__inner {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 72px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-size: var(--fs-md);
  letter-spacing: .14em;
}
.brand:hover { color: var(--ink); }
.brand__pixel {
  width: 20px; height: 20px;
  background:
    linear-gradient(var(--red), var(--red)) 0 0 / 8px 8px no-repeat,
    linear-gradient(var(--red), var(--red)) 12px 0 / 8px 8px no-repeat,
    linear-gradient(var(--red), var(--red)) 0 12px / 8px 8px no-repeat,
    linear-gradient(var(--red-deep), var(--red-deep)) 12px 12px / 8px 8px no-repeat;
}
.brand__text em { font-style: normal; color: var(--red); }

.nav { display: flex; gap: 4px; margin-left: auto; }
.nav__link {
  position: relative;
  padding: 8px 16px;
  color: var(--ink-2);
  letter-spacing: .12em;
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 16px; right: 16px; bottom: 4px;
  height: 3px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .16s steps(4);
}
.nav__link:hover { color: var(--ink); }
.nav__link:hover::after,
.nav__link.is-active::after { transform: scaleX(1); }
.nav__link.is-active { color: var(--ink); }

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  padding: 8px 12px;
  background: var(--paper);
  border: 2px solid var(--ink);
  letter-spacing: .12em;
}
.nav-toggle span {
  width: 12px; height: 12px;
  background:
    linear-gradient(var(--ink), var(--ink)) 0 0 / 12px 2px no-repeat,
    linear-gradient(var(--ink), var(--ink)) 0 5px / 12px 2px no-repeat,
    linear-gradient(var(--ink), var(--ink)) 0 10px / 12px 2px no-repeat;
}

/* ---------------- 6. Hero ---------------- */
.hero { padding: 0; }

/* 顶部像素横幅：全宽通栏，480x180 原生像素图铺满页面宽度 */
.banner {
  width: 100%;
  border-bottom: var(--line);
  background: var(--paper);
}
.banner > img {
  display: block;
  width: 100%;
  height: auto;
  max-height: min(22vh, 200px);  /* 超宽屏时按比例裁切，避免横幅过高 */
  object-fit: cover;
  object-position: center 55%;
  image-rendering: pixelated;
}
.banner__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px clamp(16px, 4vw, 48px);
  background: var(--ink);
  color: var(--cream);
  letter-spacing: .14em;
}
.banner__meta { color: #C9BAB2; letter-spacing: .1em; white-space: nowrap; }

.hero__grid {
  margin-top: 56px;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  gap: 48px;
  align-items: start;
}
.avatar {
  width: 168px;
  padding: 12px;
}
.avatar img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  image-rendering: pixelated;
  border: 2px solid var(--ink);
}
.avatar__tag {
  display: block;
  margin-top: 8px;
  text-align: center;
  letter-spacing: .2em;
  color: var(--ink-3);
}

.hero__name {
  margin-top: 32px;
  font-size: var(--fs-xl);
  font-weight: 400;
  line-height: 60px;
  letter-spacing: .1em;
  color: var(--ink);
  text-shadow: 4px 4px 0 var(--red-wash);
}
.hero__role {
  margin-top: 4px;
  font-size: var(--fs-md);
  line-height: 36px;
  color: var(--red-deep);
  letter-spacing: .08em;
}
.hero__role::after {
  content: "";
  display: inline-block;
  width: 10px; height: 18px;
  margin-left: 8px;
  background: var(--red);
  vertical-align: -2px;
  animation: blink 1s steps(1, end) infinite;
}
@keyframes blink { 0%, 49% { opacity: 1; } 50%, 100% { opacity: 0; } }

.hero__intro {
  margin-top: 16px;
  max-width: 46em;
  color: var(--ink-2);
}
.hero__btns { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 32px; }

.socials { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.socials a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: var(--paper);
  border: 2px solid var(--ink);
  box-shadow: 4px 4px 0 var(--shadow);
  color: var(--ink-2);
  letter-spacing: .1em;
}
.socials a::before {
  content: "";
  width: 8px; height: 8px;
  background: var(--red);
}
.socials a:hover { transform: translate(-2px, -2px); box-shadow: 6px 6px 0 var(--shadow); color: var(--ink); }

/* 终端窗口 */
.window {
  background: var(--paper);
  border: var(--line);
  box-shadow: 8px 8px 0 var(--shadow);
}
.window__bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--red);
  border-bottom: var(--line);
}
.window__dot { width: 12px; height: 12px; border: 2px solid var(--ink); }
.window__dot--a { background: var(--paper); }
.window__dot--b { background: var(--mustard); }
.window__dot--c { background: var(--sage); }
.window__title {
  margin-left: 8px;
  color: var(--paper);
  letter-spacing: .1em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.window__body {
  margin: 0;
  padding: 24px;
  min-height: 264px;
  font-family: inherit;
  font-size: var(--fs-xs);
  line-height: var(--lh);
  color: var(--ink);
  white-space: pre-wrap;
  word-break: break-word;
}
.window__body .t-red { color: var(--red-deep); }
.window__body .t-dim { color: var(--ink-3); }

.statusbar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
  padding: 8px 16px;
  background: var(--ink);
  color: var(--cream);
  letter-spacing: .12em;
}
.statusbar__spacer { flex: 1; }
.led {
  width: 10px; height: 10px;
  background: var(--sage);
  animation: blink 1.6s steps(1, end) infinite;
}

/* 跑马灯 */
.ticker {
  margin-top: 72px;
  overflow: hidden;
  background: var(--ink);
  border-top: var(--line);
  border-bottom: var(--line);
  color: var(--cream);
}
.ticker__track {
  display: inline-flex;
  gap: 48px;
  padding: 12px 0;
  white-space: nowrap;
  letter-spacing: .18em;
  animation: marquee 32s linear infinite;
}
.ticker__track span { display: inline-flex; align-items: center; gap: 12px; }
.ticker__track i {
  width: 8px; height: 8px;
  background: var(--red-soft);
}
@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ---------------- 7. 筛选 ---------------- */
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 32px; }
.filters button {
  padding: 6px 16px;
  background: var(--paper);
  border: 2px solid var(--ink);
  color: var(--ink-2);
  letter-spacing: .1em;
}
.filters button:hover { background: var(--red-wash); color: var(--ink); }
.filters button.is-active {
  background: var(--red);
  border-color: var(--red-deep);
  color: var(--paper);
}

/* ---------------- 8. 卡片网格 ---------------- */
.grid { display: grid; gap: 32px; }
.grid--art  { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--code { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.card {
  background: var(--paper);
  border: var(--line);
  box-shadow: 8px 8px 0 var(--shadow);
  transition: transform .1s steps(3), box-shadow .1s steps(3);
}
.card:hover { transform: translate(-4px, -4px); box-shadow: 12px 12px 0 var(--shadow-red); }
.is-hidden { display: none !important; }

.card__thumb {
  position: relative;
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  border-bottom: var(--line);
  background: var(--paper-2);
  cursor: zoom-in;
  overflow: hidden;
}
.card__thumb img {
  width: 100%;
  image-rendering: pixelated;
  transition: transform .18s steps(4);
}
.card__thumb:hover img { transform: scale(1.03); }
.grid--art  .card__thumb img { aspect-ratio: 1 / 1; object-fit: cover; }
.grid--code .card__thumb img { aspect-ratio: 16 / 9; object-fit: cover; }

.card__body { padding: 16px; }
.card__title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: var(--fs-md);
  line-height: 32px;
  letter-spacing: .06em;
}
.card__index { color: var(--red-soft); }
.card__desc { margin-top: 8px; color: var(--ink-2); }
.card__tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.card__tags span {
  padding: 2px 8px;
  font-size: var(--fs-xs);
  background: var(--red-wash);
  border: 2px solid var(--red-soft);
  color: var(--red-deep);
}
.card__links { margin-top: 12px; }
.card__links a { letter-spacing: .1em; border-bottom: 2px solid var(--red-soft); }

/* 加载更多 */
.load-more { display: flex; justify-content: center; margin-top: 32px; }
.load-more:empty { display: none; }

/* 占位角标 */
.badge-slot {
  position: absolute;
  left: 0; top: 0;
  padding: 4px 10px;
  background: var(--ink);
  color: var(--cream);
  letter-spacing: .16em;
}

/* 空占位卡（告诉用户这里要放素材） */
.card--empty .card__thumb { cursor: default; }
.card--empty .card__thumb::after {
  content: "等待素材";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: repeating-linear-gradient(45deg,
    var(--paper-2) 0 8px, var(--cream-soft) 8px 16px);
  color: var(--ink-3);
  letter-spacing: .2em;
}

/* ---------------- 9. 视频列表 ---------------- */
.video-list { display: grid; gap: 24px; }
.video-item {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 0;
  background: var(--paper);
  border: var(--line);
  box-shadow: 8px 8px 0 var(--shadow);
}
.video-item__poster {
  position: relative;
  padding: 0;
  border: 0;
  border-right: var(--line);
  background: var(--paper-2);
  cursor: pointer;
}
.video-item__poster img {
  width: 100%;
  height: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  image-rendering: pixelated;
}
.video-item__play {
  position: absolute;
  inset: 0;
  margin: auto;
  width: 48px; height: 48px;
  background: var(--paper);
  border: var(--line);
  box-shadow: 4px 4px 0 var(--ink);
  transition: transform .08s steps(2);
}
.video-item__play::after {
  content: "";
  position: absolute;
  inset: 0;
  margin: auto;
  width: 0; height: 0;
  border: 10px solid transparent;
  border-left-color: var(--red);
  border-right: 0;
  transform: translateX(4px);
}
.video-item__poster:hover .video-item__play { transform: translate(-2px, -2px); }
.video-item--empty .video-item__poster { cursor: not-allowed; }
.video-item--empty .video-item__play { box-shadow: none; opacity: .5; }
.video-item__body { padding: 24px; }
.video-item__title {
  font-size: var(--fs-md);
  line-height: 32px;
  letter-spacing: .06em;
}
.video-item__desc { margin-top: 8px; color: var(--ink-2); }
.video-item__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 16px;
  color: var(--ink-3);
  letter-spacing: .1em;
}

/* ---------------- 10. 关于 ---------------- */
.about {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr);
  gap: 32px;
  align-items: start;
}
.about__text { padding: 24px; }
.about__text p + p { margin-top: 16px; }
.about__text p { color: var(--ink-2); }

.stats { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.stat {
  padding: 16px;
  background: var(--paper);
  border: var(--line);
  box-shadow: 6px 6px 0 var(--shadow);
}
.stat__num {
  font-size: var(--fs-lg);
  line-height: 40px;
  color: var(--red);
  letter-spacing: .04em;
}
.stat__label { color: var(--ink-2); letter-spacing: .1em; }

.tools-block { margin-top: 48px; }
.tools { display: flex; flex-wrap: wrap; gap: 12px; }
.tools li {
  padding: 6px 16px;
  background: var(--paper);
  border: 2px solid var(--ink);
  box-shadow: 4px 4px 0 var(--shadow);
  letter-spacing: .1em;
  color: var(--ink-2);
}
.tools li::before {
  content: "";
  display: inline-block;
  width: 8px; height: 8px;
  margin-right: 8px;
  background: var(--mustard);
  vertical-align: middle;
}

/* ---------------- 11. 页脚 ---------------- */
.footer {
  padding: 48px 0;
  background: var(--ink);
  color: var(--cream);
  border-top: var(--line);
}
.footer__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
}
.footer a { color: var(--red-soft); }
.footer a:hover { color: var(--paper); }
.footer__font { color: #C9BAB2; }

/* ---------------- 12. 灯箱 ---------------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  padding: 48px 24px;
  background: rgba(58, 46, 43, .92);
}
.lightbox[hidden] { display: none; }
.lightbox__figure {
  max-width: min(880px, 100%);
  max-height: 100%;
  overflow: hidden;          /* 放大后在画框内平移浏览（图片浏览器式的取景窗口） */
  background: var(--paper);
  border: var(--line);
  box-shadow: 12px 12px 0 var(--red-deep);
}
.lightbox__figure img {
  width: 100%;
  max-height: 68vh;
  object-fit: contain;
  image-rendering: pixelated;
  background: var(--paper-2);
  border-bottom: var(--line);
}
.lightbox__figure img.is-zoomable { cursor: zoom-in; touch-action: none; user-select: none; }
.lightbox__figure img.is-zoomed { cursor: grab; }
.lightbox__figure img.is-dragging { cursor: grabbing; }
.lightbox__caption {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: baseline;
  justify-content: space-between;
  padding: 16px 20px;
}
.lightbox__meta { color: var(--ink-3); letter-spacing: .1em; }
.lightbox__nav {
  width: 48px; height: 48px;
  background: var(--paper);
  border: var(--line);
  box-shadow: 4px 4px 0 var(--red-deep);
  color: var(--ink);
  font-size: var(--fs-md);
  line-height: 1;
  position: relative;   /* 全屏铺满时压在放大的图片之上 */
  z-index: 6;
}
.lightbox__nav:hover { background: var(--red); color: var(--paper); }
.lightbox__nav { flex: 0 0 auto; }

/* 全屏展示（Fullscreen API 作用于 .lightbox 本身；进入时自动放大到图片铺满全屏） */
.lightbox:fullscreen {
  padding: 0;
  background: #2e2522;
}
.lightbox:fullscreen .lightbox__figure {
  max-width: 100%;
  overflow: visible;               /* 放大溢出部分直接铺满整个屏幕 */
  background: transparent;
  border: 0;
  box-shadow: none;
}
.lightbox:fullscreen .lightbox__figure img {
  width: auto;
  max-width: 100vw;
  max-height: 100vh;
  border-bottom: 0;
}
.lightbox:fullscreen .lightbox__nav { display: none; }     /* 全屏：隐藏左右翻页按钮（←/→ 键仍可翻页） */
.lightbox:fullscreen .lightbox__caption { display: none; } /* 全屏：隐藏底部作品说明 */
.lightbox:fullscreen .lightbox__caption {
  position: absolute;              /* 说明文字改为底部悬浮，不占画面空间 */
  left: 50%;
  bottom: 20px;
  transform: translateX(-50%);
  flex-wrap: nowrap;
  padding: 10px 18px;
  background: var(--paper);
  border: var(--line);
  box-shadow: 4px 4px 0 var(--red-deep);
  white-space: nowrap;
  max-width: 92vw;
}
.lightbox:fullscreen::backdrop { background: #2e2522; }  /* 全屏过渡时的底色 */

/* 画作缩放工具条（仅画作画廊的灯箱显示） */
.lightbox__tools {
  position: absolute;
  top: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--paper);
  border: var(--line);
  box-shadow: 4px 4px 0 var(--red-deep);
  z-index: 5;
}
.lightbox__tools[hidden] { display: none; }
.lightbox__tool {
  min-width: 36px;
  height: 36px;
  padding: 0 8px;
  background: var(--paper-2);
  border: 2px solid var(--ink);
  box-shadow: 2px 2px 0 var(--ink);
  color: var(--ink);
  font-size: var(--fs-md);
  line-height: 1;
  cursor: pointer;
}
.lightbox__tool:hover { background: var(--red); color: var(--paper); }
.lightbox__tool:active { transform: translate(2px, 2px); box-shadow: none; }
.lightbox__zoom {
  min-width: 56px;
  text-align: center;
  font-size: var(--fs-xs);
  letter-spacing: .08em;
}
.lightbox__hint { color: var(--ink-3); font-size: var(--fs-xs); letter-spacing: .08em; }

/* ---------------- 13. 视频弹窗 ---------------- */
.modal {
  position: fixed;
  inset: 0;
  z-index: 210;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(58, 46, 43, .92);
}
.modal[hidden] { display: none; }
.modal__box {
  width: min(960px, 100%);
  background: var(--paper);
  border: var(--line);
  box-shadow: 12px 12px 0 var(--red-deep);
}
.modal__body { padding: 16px; }
.modal__body video {
  width: 100%;
  max-height: 70vh;
  background: #000;
  border: 2px solid var(--ink);
}
.modal__close {
  margin-left: auto;
  padding: 0 8px;
  background: transparent;
  border: 0;
  color: var(--paper);
  font-size: var(--fs-md);
  line-height: 1;
}

/* ---------------- 14. 响应式 ---------------- */
@media (max-width: 960px) {
  .hero__grid { grid-template-columns: minmax(0, 1fr); gap: 40px; margin-top: 40px; }
  .grid--art { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .about { grid-template-columns: minmax(0, 1fr); }
  .video-item { grid-template-columns: minmax(0, 1fr); }
  .video-item__poster { border-right: 0; border-bottom: var(--line); }
}

@media (max-width: 720px) {
  :root { --fs-lg: 24px; --fs-xl: 36px; }
  .section { padding: 64px 0; }
  .hero { padding-top: 48px; }
  .hero__name { line-height: 48px; margin-top: 24px; }
  .hero__role { font-size: var(--fs-xs); line-height: 24px; }
  .sec-title { line-height: 36px; }
  .grid--art, .grid--code { grid-template-columns: minmax(0, 1fr); }
  .stats { grid-template-columns: minmax(0, 1fr); }
  .lightbox { padding: 24px 16px 96px; flex-direction: column; }
  .lightbox__tools {
    top: 16px;
    flex-wrap: wrap;
    justify-content: center;
    max-width: calc(100% - 96px);
  }
  .lightbox__hint { display: none; }

  .nav {
    position: absolute;
    left: 0; right: 0; top: 72px;
    display: none;
    flex-direction: column;
    gap: 0;
    padding: 8px 24px 16px;
    background: var(--cream);
    border-bottom: var(--line);
  }
  .nav.is-open { display: flex; }
  .nav__link { padding: 12px 0; }
  .nav__link::after { left: 0; right: auto; width: 24px; }
  .nav-toggle { display: inline-flex; }
  .topbar { position: relative; }
  .topbar__inner { height: 64px; }
  .nav { top: 64px; }
}

/* ---------------- 15. 动效偏好 ---------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .ticker__track { animation: none; }
  .led, .hero__role::after { animation: none; }
  .has-js .reveal { opacity: 1; transform: none; }
  *, *::before, *::after { transition: none !important; }
}