/* ==========================================================
   羞羞漫画入口 · 全站共享样式 /assets/site.css
   ========================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h-mobile) + 12px);
}

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

/* ---------- 变量 ---------- */
:root {
  --bg-deep: #2A2A3A;
  --bg-warm: #F5F0E6;
  --bg-panel: #FFFFFF;
  --bg-tint: rgba(42,42,58,0.05);

  --card-coral: #FF6B6B;
  --card-lemon: #FFE66D;
  --card-mint: #6BCB77;
  --card-lavender: #A78BFA;

  --accent: #FF6B35;

  --status-updated: #3DDC84;
  --status-serializing: #4A9BFF;
  --status-finished: #9E9E9E;

  --tag-1: #FF8A5C;
  --tag-2: #FFD166;
  --tag-3: #06D6A0;
  --tag-4: #A78BFA;
  --tag-5: #EF476F;

  --text-primary: #1F1F2E;
  --text-muted: #6B7280;
  --text-on-deep: #FFFFFF;
  --text-soft: rgba(255,255,255,0.74);
  --divider: #E5E7EB;

  --font-display: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "HarmonyOS Sans SC", sans-serif;
  --font-body: "Charter", "Source Han Serif SC", "Noto Serif SC", "Songti SC", "SimSun", serif;
  --font-hand: "Yuanti SC", "YouYuan", "Chalkboard SE", "Comic Sans MS", "Segoe Print", cursive;

  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-pill: 999px;

  --header-w: 272px;
  --header-h-mobile: 64px;
  --content-max: 1200px;

  --shadow-pop: 4px 4px 0 var(--bg-deep);
}

/* ---------- 基础排版 ---------- */
body {
  font-family: var(--font-body);
  background: var(--bg-warm);
  color: var(--text-primary);
  line-height: 1.7;
  min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  line-height: 1.25;
  font-weight: 800;
}
h1 { font-size: clamp(28px, 4vw, 40px); }
h2 { font-size: clamp(22px, 3vw, 30px); }
h3 { font-size: 19px; }
h4 { font-size: 16px; }

a { text-decoration: none; }
p { line-height: 1.75; }

::selection { background: var(--accent); color: var(--text-primary); }

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
  border-radius: 6px;
}

/* ---------- 跳转链接 ---------- */
.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1000;
  transform: translateY(-300%);
  background: var(--accent);
  color: var(--text-primary);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
  padding: 10px 20px;
  border-radius: var(--radius-pill);
  box-shadow: 0 4px 14px rgba(0,0,0,0.3);
  transition: transform .2s ease;
}
.skip-link:focus-visible { transform: translateY(0); }

/* ---------- 主区与容器 ---------- */
main#main-content,
.site-main {
  margin-left: var(--header-w);
  padding: 28px clamp(18px, 4vw, 48px) 64px;
  min-height: 70vh;
}

#main-content { scroll-margin-top: calc(var(--header-h-mobile) + 8px); }

.container {
  width: min(var(--content-max), 100%);
  margin-inline: auto;
}

.prose {
  max-width: 72ch;
}
.prose p { margin-bottom: 14px; }
.prose a {
  color: var(--accent);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 头部侧边轨道 ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--header-w);
  background: var(--bg-deep);
  color: var(--text-on-deep);
  z-index: 200;
  border-right: 2px solid rgba(255,255,255,0.07);
}

.site-header__inner {
  height: 100%;
  padding: 28px 20px 20px;
  display: flex;
  flex-direction: column;
  gap: 32px;
  overflow-y: auto;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text-on-deep);
}

.site-brand__mark {
  width: 46px;
  height: 46px;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  background: var(--accent);
  color: var(--text-primary);
  border-radius: 16px;
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 900;
  box-shadow: 3px 3px 0 rgba(255,255,255,0.16);
  transform: rotate(-4deg);
}

.site-brand__text {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 900;
  letter-spacing: 0.04em;
}

.site-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.site-nav__link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  border-radius: var(--radius-pill);
  color: var(--text-soft);
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  transition: background-color .18s ease, color .18s ease, transform .18s ease;
}

.site-nav__link::before {
  content: "";
  width: 8px;
  height: 8px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--card-lavender);
}

.site-nav__link:nth-child(1)::before { background: var(--card-coral); }
.site-nav__link:nth-child(2)::before { background: var(--card-lemon); }
.site-nav__link:nth-child(3)::before { background: var(--card-mint); }
.site-nav__link:nth-child(4)::before { background: var(--card-lavender); }
.site-nav__link:nth-child(5)::before { background: var(--tag-1); }
.site-nav__link:nth-child(6)::before { background: var(--tag-5); }

.site-nav__link:hover {
  background: rgba(255,255,255,0.08);
  color: var(--text-on-deep);
  transform: translateX(4px);
}

.site-nav__link[aria-current="page"] {
  background: var(--accent);
  color: var(--text-primary);
  font-weight: 800;
  box-shadow: 0 4px 12px rgba(255,107,53,0.35);
}
.site-nav__link[aria-current="page"]::before { background: var(--text-primary); }

.site-header__meta {
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 16px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  font-family: var(--font-hand);
  font-size: 13px;
  color: var(--text-soft);
}

.site-header__meta-dot {
  width: 8px;
  height: 8px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--status-updated);
  box-shadow: 0 0 0 3px rgba(61,220,132,0.25);
  animation: dot-pulse 2.4s ease-in-out infinite;
}

@keyframes dot-pulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(61,220,132,0.25); }
  50% { box-shadow: 0 0 0 7px rgba(61,220,132,0); }
}

.nav-toggle { display: none; }

/* ---------- 页脚 ---------- */
.site-footer {
  position: relative;
  margin-left: var(--header-w);
  background: var(--bg-warm);
  padding-top: 56px;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 8px;
  background: linear-gradient(
    90deg,
    var(--card-coral) 0 20%,
    var(--card-lemon) 20% 40%,
    var(--card-mint) 40% 60%,
    var(--card-lavender) 60% 80%,
    var(--accent) 80% 100%
  );
}

.site-footer__inner {
  width: min(var(--content-max), 100% - 48px);
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.3fr;
  gap: 40px;
  padding-bottom: 36px;
}

.site-footer__brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}

.site-footer .site-brand { color: var(--text-primary); }

.site-footer__slogan {
  display: inline-block;
  font-family: var(--font-hand);
  font-size: 15px;
  color: var(--text-primary);
  background: var(--card-lemon);
  border: 2px solid var(--bg-deep);
  box-shadow: 3px 3px 0 var(--bg-deep);
  border-radius: var(--radius-pill);
  padding: 4px 16px;
  transform: rotate(-1deg);
}

.site-footer__col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.site-footer__title {
  display: inline-block;
  align-self: flex-start;
  background: var(--bg-deep);
  color: var(--text-on-deep);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 800;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
}

.site-footer__links,
.site-footer__contact {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.site-footer__links a {
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 600;
  transition: color .15s ease;
}
.site-footer__links a:hover { color: var(--accent); }

.site-footer__contact li {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}

.site-footer__bottom {
  background: var(--bg-deep);
  color: var(--text-soft);
  padding: 18px 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
  justify-content: center;
  align-items: center;
  font-size: 13px;
}
.site-footer__bottom p { line-height: 1.6; }
.site-footer__bottom a {
  color: var(--text-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color .15s ease;
}
.site-footer__bottom a:hover { color: var(--text-on-deep); }

/* ---------- 回顶按钮 ---------- */
.top-btn {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 150;
  width: 48px;
  height: 48px;
  border-radius: 16px;
  background: var(--accent);
  border: 2px solid var(--bg-deep);
  box-shadow: 3px 3px 0 var(--bg-deep);
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 900;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity .25s ease, transform .25s ease, visibility .25s;
}
.top-btn.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.top-btn:hover { transform: translateY(-2px); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: var(--radius-pill);
  background: var(--bg-panel);
  color: var(--text-primary);
  border: 2px solid var(--bg-deep);
  box-shadow: 3px 3px 0 var(--bg-deep);
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease;
}
.btn:hover { transform: translate(-2px,-2px); box-shadow: 5px 5px 0 var(--bg-deep); }
.btn:active { transform: translate(1px,1px); box-shadow: 1px 1px 0 var(--bg-deep); }
.btn--primary { background: var(--accent); color: var(--text-primary); }
.btn--ghost { background: transparent; box-shadow: none; }
.btn--ghost:hover { box-shadow: 2px 2px 0 var(--bg-deep); }

/* ---------- 面包屑 ---------- */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 20px;
}
.breadcrumbs__sep { opacity: 0.5; }
.breadcrumbs a { color: var(--accent); font-weight: 600; }
.breadcrumbs a:hover { text-decoration: underline; }
.breadcrumbs [aria-current="page"] {
  color: var(--text-muted);
  font-weight: 400;
  text-decoration: none;
}

/* ---------- 区块头 ---------- */
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin: 40px 0 20px;
}
.section-head__title {
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 900;
  padding-bottom: 6px;
  position: relative;
}
.section-head__title::after {
  content: "";
  position: absolute;
  left: 2px;
  bottom: 0;
  width: 28px;
  height: 6px;
  border-radius: var(--radius-pill);
  background: var(--accent);
}
.section-head__more {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  white-space: nowrap;
}
.section-head__more:hover { text-decoration: underline; text-underline-offset: 4px; }

/* ---------- 卡片墙 ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 22px;
}
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 20px;
  border-radius: var(--radius-lg);
  background: var(--bg-panel);
  border: 2px solid var(--bg-deep);
  box-shadow: var(--shadow-pop);
  transition: transform .18s ease, box-shadow .18s ease;
}
.card:hover { transform: translate(-2px,-2px); box-shadow: 6px 6px 0 var(--bg-deep); }
.card--coral { background: var(--card-coral); }
.card--lemon { background: var(--card-lemon); }
.card--mint { background: var(--card-mint); }
.card--lavender { background: var(--card-lavender); }
.card__title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 900;
}
.card__text { font-size: 14px; color: var(--text-primary); }
.card__foot {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

/* ---------- 磁贴矩阵 ---------- */
.tile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 14px;
}
.tile {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 14px;
  border-radius: var(--radius-md);
  background: var(--bg-panel);
  border: 2px solid var(--bg-deep);
  box-shadow: 3px 3px 0 var(--bg-deep);
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 800;
  color: var(--text-primary);
  text-decoration: none;
  transition: transform .15s ease, box-shadow .15s ease;
}
.tile:hover { transform: translate(-2px,-2px); box-shadow: 5px 5px 0 var(--bg-deep); }
.tile--coral { background: var(--card-coral); }
.tile--lemon { background: var(--card-lemon); }
.tile--mint { background: var(--card-mint); }
.tile--lavender { background: var(--card-lavender); }
.tile__count {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 400;
  color: var(--text-primary);
  opacity: 0.75;
}

/* ---------- 条目行 ---------- */
.list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.list-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  background: var(--bg-panel);
  border: 1.5px solid var(--divider);
  transition: border-color .15s ease, box-shadow .15s ease;
}
.list-row:hover { border-color: var(--bg-deep); box-shadow: 3px 3px 0 var(--bg-deep); }
.list-row__main { flex: 1; min-width: 0; }
.list-row__title {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 800;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.list-row__meta { font-size: 13px; color: var(--text-muted); }

/* ---------- 标签组 ---------- */
.tag-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  background: var(--bg-panel);
  border: 1.5px solid var(--bg-deep);
  font-family: var(--font-hand);
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.4;
}
.tag--coral { background: var(--tag-1); }
.tag--lemon { background: var(--tag-2); }
.tag--mint { background: var(--tag-3); }
.tag--lavender { background: var(--tag-4); }
.tag--rose { background: var(--tag-5); }

/* ---------- 状态徽标 ---------- */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 800;
  line-height: 1.5;
  white-space: nowrap;
}
.status-badge::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
}
.status-badge--updated { background: rgba(61,220,132,0.16); color: #0A7A3F; }
.status-badge--serializing { background: rgba(74,155,255,0.16); color: #155FCB; }
.status-badge--finished { background: rgba(158,158,158,0.2); color: #52525B; }

/* ---------- 序号标记 ---------- */
.num-mark {
  display: inline-flex;
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 900;
  line-height: 1;
  color: var(--accent);
  text-shadow: -2px -2px 0 rgba(42,42,58,0.12);
}
.num-mark--sm { font-size: 20px; }
.num-mark--invert { color: var(--text-on-deep); text-shadow: 2px 2px 0 var(--bg-deep); }

/* ---------- 指标条 ---------- */
.indicator__label {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
}
.indicator {
  position: relative;
  width: 100%;
  height: 8px;
  border-radius: var(--radius-pill);
  background: rgba(42,42,58,0.12);
  overflow: hidden;
}
.indicator__fill {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--accent);
}
.indicator--mint .indicator__fill { background: var(--card-mint); }
.indicator--coral .indicator__fill { background: var(--card-coral); }
.indicator--blue .indicator__fill { background: var(--status-serializing); }

/* ---------- 索引条 ---------- */
.index-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.index-bar__item {
  min-width: 38px;
  height: 38px;
  padding: 0 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: var(--bg-panel);
  border: 2px solid var(--bg-deep);
  box-shadow: 2px 2px 0 var(--bg-deep);
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 800;
  color: var(--text-primary);
  text-decoration: none;
  transition: transform .12s ease, box-shadow .12s ease;
}
.index-bar__item:hover { transform: translate(-1px,-1px); box-shadow: 3px 3px 0 var(--bg-deep); }
.index-bar__item[aria-current="true"] {
  background: var(--accent);
  color: var(--text-primary);
}

/* ---------- 横向滑轨 ---------- */
.rail {
  position: relative;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 8px;
  scrollbar-width: thin;
  scrollbar-color: var(--bg-deep) transparent;
}
.rail::-webkit-scrollbar { height: 8px; }
.rail::-webkit-scrollbar-thumb { background: var(--bg-deep); border-radius: 4px; }
.rail::-webkit-scrollbar-track { background: transparent; }

.rail__track {
  display: flex;
  gap: 16px;
  width: max-content;
}
.rail__item {
  flex: 0 0 auto;
  scroll-snap-align: start;
}
.rail__item--col { width: 210px; }

/* ---------- 表格 ---------- */
.table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.data-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  overflow: hidden;
  border: 2px solid var(--bg-deep);
  border-radius: var(--radius-md);
  background: var(--bg-panel);
  font-size: 14px;
}
.data-table th {
  background: var(--bg-deep);
  color: var(--text-on-deep);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 800;
  text-align: left;
  padding: 12px 16px;
  white-space: nowrap;
}
.data-table td {
  padding: 12px 16px;
  border-top: 1px solid var(--divider);
  vertical-align: middle;
}
.data-table tbody tr { transition: background-color .12s ease; }
.data-table tbody tr:hover { background: var(--bg-tint); }

/* ---------- 图片容器 ---------- */
.media-frame {
  position: relative;
  display: block;
  overflow: hidden;
  border-radius: var(--radius-md);
  background: var(--bg-deep);
  border: 2px solid var(--bg-deep);
  box-shadow: 3px 3px 0 rgba(42,42,58,0.25);
}
.media-frame--landscape { aspect-ratio: 16 / 10; }
.media-frame--portrait { aspect-ratio: 3 / 4; }
.media-frame--square { aspect-ratio: 1 / 1; }
.media-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255,255,255,0.16) 1px, transparent 1.2px);
  background-size: 9px 9px;
  pointer-events: none;
}
.media-frame--tint::before {
  background-image:
    radial-gradient(rgba(255,255,255,0.18) 1px, transparent 1.2px),
    linear-gradient(135deg, rgba(255,107,53,0.28), rgba(167,139,250,0.28));
  background-size: 9px 9px, 100% 100%;
}
.media-frame > img,
.media-frame > svg {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 漫画装饰 ---------- */
.speech-bubble {
  position: relative;
  display: inline-block;
  background: var(--bg-panel);
  border: 2px solid var(--bg-deep);
  border-radius: 18px;
  padding: 12px 18px;
  font-family: var(--font-hand);
  font-size: 14px;
  font-weight: 700;
  box-shadow: 3px 3px 0 var(--bg-deep);
}
.speech-bubble::after {
  content: "";
  position: absolute;
  bottom: -9px;
  left: 26px;
  width: 14px;
  height: 14px;
  background: var(--bg-panel);
  border-right: 2px solid var(--bg-deep);
  border-bottom: 2px solid var(--bg-deep);
  border-radius: 0 0 4px 0;
  transform: rotate(45deg);
}

.speed-lines {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  background:
    repeating-linear-gradient(
      -45deg,
      rgba(42,42,58,0.08) 0,
      rgba(42,42,58,0.08) 10px,
      transparent 10px,
      transparent 22px
    );
}
.speed-lines--hero {
  height: 120px;
  background:
    repeating-linear-gradient(
      90deg,
      rgba(255,255,255,0.14) 0,
      rgba(255,255,255,0.14) 3px,
      transparent 3px,
      transparent 26px
    );
}

.sticker {
  display: inline-flex;
  align-items: center;
  padding: 6px 16px;
  border-radius: 8px;
  background: var(--card-lemon);
  border: 2px solid var(--bg-deep);
  box-shadow: 2px 2px 0 var(--bg-deep);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 800;
  transform: rotate(-3deg);
}

/* ---------- 滚动显现 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .5s ease, transform .5s ease;
}
[data-reveal="left"] { transform: translateX(-24px); }
[data-reveal="right"] { transform: translateX(24px); }
[data-reveal="pop"] { transform: scale(0.95); }
[data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}

/* ---------- 减少动效 ---------- */
@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;
  }
  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .top-btn { transition: none; }
}

/* ---------- 移动端适配 ---------- */
@media (max-width: 900px) {
  body.is-nav-open { overflow: hidden; }

  main#main-content,
  .site-main {
    margin-left: 0;
    padding: calc(var(--header-h-mobile) + 16px) 16px 48px;
  }

  .site-header {
    top: 0;
    left: 0;
    right: 0;
    bottom: auto;
    width: auto;
    height: var(--header-h-mobile);
    border-right: none;
    border-bottom: 2px solid rgba(255,255,255,0.08);
  }

  .site-header__inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 16px;
    overflow: visible;
  }

  .site-brand__mark {
    width: 40px;
    height: 40px;
    font-size: 20px;
    border-radius: 14px;
  }

  .site-brand__text { font-size: 17px; }

  .nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    flex-shrink: 0;
    border-radius: 14px;
    border: 1.5px solid rgba(255,255,255,0.16);
  }
  .nav-toggle__bar {
    display: block;
    width: 20px;
    height: 2px;
    border-radius: 2px;
    background: var(--text-on-deep);
    transition: transform .25s ease, opacity .25s ease;
  }
  .nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  .site-nav {
    position: fixed;
    top: var(--header-h-mobile);
    left: 0;
    right: 0;
    max-height: calc(100vh - var(--header-h-mobile));
    padding: 16px;
    background: var(--bg-deep);
    border-top: 1px solid rgba(255,255,255,0.08);
    border-radius: 0 0 20px 20px;
    box-shadow: 0 16px 40px rgba(0,0,0,0.35);
    transform: translateY(-10px);
    opacity: 0;
    visibility: hidden;
    transition: opacity .22s ease, transform .22s ease, visibility .22s;
    overflow-y: auto;
    overscroll-behavior: contain;
  }

  .site-nav[data-open] {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .site-nav__link:hover { transform: none; }

  .site-header__meta { display: none; }

  .site-footer {
    margin-left: 0;
    padding-top: 40px;
  }
  .site-footer::before { height: 6px; }
  .site-footer__inner {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
    width: min(100% - 32px, 640px);
  }
}

@media (max-width: 560px) {
  .site-footer__inner { grid-template-columns: 1fr; }
  .site-footer__bottom { flex-direction: column; text-align: center; }
  .top-btn { right: 16px; bottom: 16px; }
}