/* ============================================================
   css/style.css —— 前台样式
   主题色由 app.js 依据后台 theme 配置动态写入 :root 自定义属性：
   --bg / --panel / --card / --border / --text / --text2 / --primary / --primary2 / --radius
   动效由 html[data-*] 属性驱动（后台 fx 配置映射）：
   data-entrance / data-textfx / data-btnfx / data-cardfx / data-depth / data-motion
   ============================================================ */

/* ---------- Reset & Tokens ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "HarmonyOS Sans SC",
    "Microsoft YaHei", "Noto Sans SC", "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
h1, h2, h3, p, ul, ol, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
input, textarea, select { font: inherit; }
img { max-width: 100%; display: block; }
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: 6px; }

::selection { background: color-mix(in srgb, var(--primary) 32%, transparent); }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: #2c2c31; border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: #3a3a41; }
::-webkit-scrollbar-track { background: transparent; }

.wrap { max-width: 1160px; margin: 0 auto; padding: 0 20px; }
.section { padding: 34px 0 8px; }

.ic { width: 1em; height: 1em; flex: none; }
.ic-img { width: 1em; height: 1em; object-fit: contain; flex: none; }

/* ---------- 基础通用 ---------- */
.skip-link {
  position: fixed; top: -60px; left: 16px; z-index: 200;
  background: var(--primary); color: #0a0a0a; padding: 8px 14px;
  border-radius: 8px; font-weight: 700; transition: top .2s;
}
.skip-link:focus { top: 12px; }

.link-btn {
  color: var(--text2); text-decoration: underline; text-underline-offset: 3px;
  transition: color .2s;
}
.link-btn:hover { color: var(--primary); }

/* ---------- 公告栏 ---------- */
.announcement {
  position: relative; z-index: 50;
  background: linear-gradient(90deg, color-mix(in srgb, var(--primary) 16%, var(--panel)), color-mix(in srgb, var(--primary) 4%, var(--panel)));
  border-bottom: 1px solid color-mix(in srgb, var(--primary) 25%, var(--border));
  color: color-mix(in srgb, var(--primary) 80%, var(--text));
  font-size: 13px;
}
.announcement-inner { display: flex; align-items: center; gap: 8px; padding: 7px 20px; }
.announcement .ic { color: var(--primary); }

/* ---------- 顶部导航 ---------- */
.topbar {
  position: sticky; top: 0; z-index: 100;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.topbar-inner { display: flex; align-items: center; gap: 18px; height: 62px; }
.brand { display: flex; align-items: center; gap: 10px; flex: none; }
.brand-icon { display: grid; place-items: center; width: 36px; height: 36px; font-size: 21px; color: var(--primary); }
.brand-name { font-size: 18px; font-weight: 800; letter-spacing: 1px; }
.brand-name::after {
  content: ""; display: block; height: 2px; width: 0; margin-top: 2px;
  background: linear-gradient(90deg, var(--primary), transparent);
  transition: width .35s ease;
}
.brand:hover .brand-name::after { width: 100%; }

.nav-cats { display: flex; gap: 4px; flex: 1; overflow-x: auto; scrollbar-width: none; }
.nav-cats::-webkit-scrollbar { display: none; }
.nav-cats a {
  padding: 6px 13px; border-radius: 999px; color: var(--text2); font-size: 14px;
  white-space: nowrap; transition: color .2s, background .2s;
}
.nav-cats a:hover { color: var(--text); background: color-mix(in srgb, var(--border) 60%, transparent); }

.topbar-actions { flex: none; }
.btn-icon {
  display: grid; place-items: center; width: 38px; height: 38px; font-size: 19px;
  border-radius: 50%; color: var(--text2);
  border: 1px solid var(--border);
  transition: color .2s, border-color .2s, transform .15s;
}
.btn-icon:hover { color: var(--primary); border-color: var(--primary); }
.btn-icon:active { transform: scale(.9); }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  padding: 64px 0 58px;
  background:
    radial-gradient(60% 120% at 50% -20%, color-mix(in srgb, var(--primary) 10%, transparent), transparent 70%),
    linear-gradient(180deg, color-mix(in srgb, var(--panel) 55%, var(--bg)), var(--bg));
  border-bottom: 1px solid var(--border);
  text-align: center;
}
.hero-inner { position: relative; z-index: 2; display: flex; flex-direction: column; align-items: center; }
.hero-orb { position: absolute; border-radius: 50%; filter: blur(70px); opacity: .5; z-index: 1; }
.orb-a { width: 380px; height: 380px; left: -120px; top: -100px; background: color-mix(in srgb, var(--primary) 34%, transparent); animation: floatA 14s ease-in-out infinite; }
.orb-b { width: 300px; height: 300px; right: -100px; bottom: -120px; background: color-mix(in srgb, var(--primary2) 26%, transparent); animation: floatB 18s ease-in-out infinite; }
@keyframes floatA { 0%,100% { transform: translate(0,0); } 50% { transform: translate(40px, 24px); } }
@keyframes floatB { 0%,100% { transform: translate(0,0); } 50% { transform: translate(-36px, -20px); } }

.hero-badge {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 5px 14px; border-radius: 999px; font-size: 12.5px; color: var(--primary);
  border: 1px solid color-mix(in srgb, var(--primary) 45%, transparent);
  background: color-mix(in srgb, var(--primary) 9%, transparent);
  letter-spacing: 2px;
}
.hero-badge-icon { display: grid; place-items: center; }

.hero-title {
  margin-top: 22px; font-size: clamp(30px, 5.4vw, 52px); line-height: 1.22; font-weight: 800;
  letter-spacing: 1px; display: flex; flex-direction: column; gap: 6px;
}
.hero-t2 { font-weight: 900; }

.hero-sub {
  margin-top: 14px; max-width: 620px; color: var(--text2); font-size: 15.5px;
  text-wrap: balance;
}

.hero-search {
  margin-top: 30px; display: flex; align-items: center; gap: 10px;
  width: min(520px, 92vw); padding: 5px 6px 5px 16px;
  border-radius: 999px; border: 1px solid var(--border);
  background: color-mix(in srgb, var(--panel) 86%, transparent);
  backdrop-filter: blur(8px); font-size: 17px; color: var(--text2);
  transition: border-color .25s, box-shadow .25s;
}
.hero-search:focus-within {
  border-color: color-mix(in srgb, var(--primary) 80%, transparent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 16%, transparent);
}
.hero-search input {
  flex: 1; background: none; border: 0; outline: 0; color: var(--text);
  padding: 10px 0; font-size: 15px;
}
.hero-search input::placeholder { color: var(--text2); }

.btn-cta { margin-top: 22px; padding: 11px 26px; font-size: 15px; }
.btn-cta .ic { width: 17px; height: 17px; }

.hero-stats { margin-top: 26px; display: flex; gap: 34px; }
.stat { display: flex; flex-direction: column; align-items: center; gap: 2px; }
.stat b { font-size: 25px; font-weight: 800; color: var(--primary); font-variant-numeric: tabular-nums; }
.stat span { font-size: 12px; color: var(--text2); letter-spacing: 1px; }

/* ---------- 分类页签 ---------- */
.cats-section { padding-top: 26px; }
.cat-tabs {
  display: flex; flex-wrap: wrap; gap: 10px; justify-content: center;
}
.cat-tab {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 16px; border-radius: 999px; font-size: 14px; font-weight: 600;
  color: var(--text2); border: 1px solid var(--border);
  background: color-mix(in srgb, var(--panel) 70%, transparent);
  transition: color .2s, border-color .2s, background .2s, transform .15s, box-shadow .25s;
}
.cat-tab .ic, .cat-tab .ic-img { width: 16px; height: 16px; }
.cat-tab b { font-weight: 700; font-size: 11.5px; opacity: .75; margin-left: 2px; }
.cat-tab:hover { color: var(--text); border-color: color-mix(in srgb, var(--primary) 55%, var(--border)); transform: translateY(-1px); }
.cat-tab:active { transform: scale(.95); }
.cat-tab.active {
  color: #0a0a0a; border-color: var(--primary);
  background: linear-gradient(135deg, var(--primary), var(--primary2));
  box-shadow: 0 8px 22px color-mix(in srgb, var(--primary) 35%, transparent);
}
.cat-tab.active b { opacity: .85; }

/* ---------- 区块标题 ---------- */
.section-title { display: flex; align-items: center; gap: 12px; margin-bottom: 22px; font-size: 21px; font-weight: 800; letter-spacing: .5px; }
.section-title::before {
  content: ""; width: 6px; height: 22px; border-radius: 4px;
  background: linear-gradient(180deg, var(--primary), var(--primary2));
}
.section-title::after {
  content: ""; flex: 1; height: 1px;
  background: linear-gradient(90deg, color-mix(in srgb, var(--primary) 40%, transparent), transparent);
}

/* ---------- 卡片网格 ---------- */
.grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(318px, 1fr));
  gap: 22px;
}

/* ============================================================
   卡片（多层层次）
   结构：.card > .card-glow + .card-surface
        .card::before  = 渐变描边边框层
        .icon-chip     = 图标浮层（渐变环 + 投影）
        .card-head/.card-body/.card-foot = 内容层级
   ============================================================ */
.card {
  position: relative; border-radius: var(--radius);
  --d: 0ms; /* 进场延迟（JS 按索引写入） */
  --rx: 0deg; --ry: 0deg; --tz: 0px;
  will-change: transform;
  transition: transform .28s ease, box-shadow .28s ease;
}
/* 层次0：渐变描边（外发光环） */
.card::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; z-index: 0;
  padding: 1px;
  background:
    linear-gradient(var(--card), var(--card)) padding-box,
    linear-gradient(140deg, color-mix(in srgb, var(--primary) 55%, transparent), var(--border) 45%, color-mix(in srgb, var(--primary2) 35%, transparent)) border-box;
  pointer-events: none;
}
/* 层次-1：hover 径向辉光 */
.card-glow {
  position: absolute; inset: -2px; border-radius: calc(var(--radius) + 3px); z-index: 0;
  background: radial-gradient(70% 90% at 50% -10%, color-mix(in srgb, var(--primary) 40%, transparent), transparent 75%);
  opacity: 0; pointer-events: none;
  transition: opacity .35s ease;
}
/* 层次1：表面（玻璃质感） */
.card-surface {
  position: relative; z-index: 1;
  display: flex; flex-direction: column; gap: 14px;
  padding: 20px; border-radius: calc(var(--radius) - 2px);
  background: var(--card);
}
.card:hover .card-glow { opacity: 1; }

/* 层次2：图标浮层 */
.card-head { display: flex; align-items: flex-start; gap: 14px; position: relative; }
.icon-chip {
  position: relative; flex: none;
  display: grid; place-items: center;
  width: 62px; height: 62px; font-size: 30px;
  border-radius: 15px; color: var(--primary);
  background: linear-gradient(145deg, color-mix(in srgb, var(--panel) 96%, var(--primary)), var(--panel));
  box-shadow:
    0 10px 22px rgba(0,0,0,.38),
    inset 0 1px 0 color-mix(in srgb, var(--primary) 25%, transparent);
  transition: transform .25s ease, box-shadow .25s ease, color .25s ease;
}
.icon-chip::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px;
  background: linear-gradient(145deg, color-mix(in srgb, var(--primary) 70%, transparent), transparent 60%) border-box;
  -webkit-mask: linear-gradient(#000 0 0) padding-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  pointer-events: none;
}
.icon-chip .ic, .icon-chip .ic-img { width: 32px; height: 32px; }

.card-meta { min-width: 0; flex: 1; }
.card-title-row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.card-title { font-size: 17.5px; font-weight: 750; letter-spacing: .3px; line-height: 1.35; transition: color .2s; }
.card-tags { margin-top: 6px; display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  font-size: 11.5px; color: var(--text2); padding: 3px 8px;
  border-radius: 7px; background: color-mix(in srgb, var(--border) 55%, transparent);
  border: 1px solid color-mix(in srgb, var(--border) 80%, transparent);
  white-space: nowrap;
}
.badge {
  font-size: 11px; font-weight: 700; padding: 3px 8px; border-radius: 7px;
  color: color-mix(in srgb, var(--primary) 30%, #0a0a0a);
  background: linear-gradient(135deg, var(--primary), var(--primary2));
  box-shadow: 0 3px 10px color-mix(in srgb, var(--primary) 30%, transparent);
}

/* 精选卡片：金环强调 + 角标 */
.card.is-featured::before {
  background:
    linear-gradient(var(--card), var(--card)) padding-box,
    linear-gradient(140deg, var(--primary), color-mix(in srgb, var(--primary2) 60%, transparent) 50%, var(--primary)) border-box;
}
.card.is-featured .icon-chip { color: var(--primary2); }
.card.is-featured .card-glow { opacity: .55; }
.featured-ribbon {
  position: absolute; top: 14px; right: -30px; z-index: 2;
  background: linear-gradient(135deg, var(--primary), var(--primary2));
  color: #0a0a0a; font-size: 11px; font-weight: 800; letter-spacing: 1px;
  padding: 5px 32px; transform: rotate(45deg);
  box-shadow: 0 4px 12px color-mix(in srgb, var(--primary) 40%, transparent);
}

/* 层次3：正文 */
.card-intro {
  color: var(--text2); font-size: 13.5px; line-height: 1.68;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-req { display: flex; flex-wrap: wrap; gap: 7px; }
.req-item {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12px; color: var(--text2);
  padding: 4px 10px; border-radius: 8px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--panel) 80%, transparent);
}
.req-item .ic { width: 13px; height: 13px; color: var(--primary); opacity: .9; }

/* 更新内容（折叠） */
.changelog { border-top: 1px dashed var(--border); padding-top: 4px; }
.changelog summary {
  display: flex; align-items: center; gap: 6px;
  font-size: 13px; font-weight: 600; color: var(--text2);
  cursor: pointer; padding: 6px 0; list-style: none; user-select: none;
  transition: color .2s;
}
.changelog summary::-webkit-details-marker { display: none; }
.changelog summary::after {
  content: ""; margin-left: auto; width: 7px; height: 7px;
  border-right: 2px solid var(--text2); border-bottom: 2px solid var(--text2);
  transform: rotate(45deg); transition: transform .25s, border-color .25s;
}
.changelog[open] summary::after { transform: rotate(-135deg); border-color: var(--primary); }
.changelog summary:hover { color: var(--primary); }
.changelog ul { padding: 4px 2px 6px 20px; }
.changelog li {
  position: relative; font-size: 12.8px; color: var(--text2); line-height: 1.7;
  white-space: pre-line;
}
.changelog li::before {
  content: ""; position: absolute; left: -14px; top: .72em;
  width: 5px; height: 5px; border-radius: 50%;
  background: color-mix(in srgb, var(--primary) 80%, transparent);
}

/* 层次4：操作栏 */
.card-foot {
  margin-top: 2px; padding-top: 14px;
  border-top: 1px solid var(--border);
  display: flex; align-items: center; gap: 10px;
}
.cat-chip {
  flex: 1; min-width: 0; display: inline-flex; align-items: center; gap: 6px;
  font-size: 12px; color: var(--text2); overflow: hidden;
}
.cat-chip .ic, .cat-chip .ic-img { width: 13px; height: 13px; color: var(--primary); }

/* ============ 卡片层次（hover 变体） ============ */
/* 数据驱动: html[data-cardfx] / html[data-depth] */

/* lift：抬起 + 阴影加深 */
html[data-cardfx="lift"] .card:hover {
  transform: translateY(-7px) var(--tilt, );
  box-shadow: 0 26px 46px rgba(0,0,0,.45), 0 6px 18px color-mix(in srgb, var(--primary) 16%, transparent);
}
html[data-cardfx="lift"] .card:hover .icon-chip { transform: translateY(-3px) scale(1.06); box-shadow: 0 16px 30px rgba(0,0,0,.45), 0 0 22px color-mix(in srgb, var(--primary) 30%, transparent); }

/* tilt：透视倾斜（JS 写 --rx/--ry/--tz） */
html[data-cardfx="tilt"] .card { transform: perspective(960px) rotateX(var(--rx)) rotateY(var(--ry)) translateZ(var(--tz)); transform-style: preserve-3d; }
html[data-cardfx="tilt"] .card:hover { box-shadow: 0 30px 50px rgba(0,0,0,.48), 0 8px 20px color-mix(in srgb, var(--primary) 18%, transparent); }
html[data-cardfx="tilt"] .card:hover .icon-chip { transform: translateZ(26px) scale(1.06); }

/* 深度三档阴影（hover 统一走上面，此处控制常驻层次感） */
html[data-depth="subtle"] .card { box-shadow: 0 4px 12px rgba(0,0,0,.18); }
html[data-depth="normal"] .card { box-shadow: 0 10px 26px rgba(0,0,0,.28), 0 2px 8px rgba(0,0,0,.22); }
html[data-depth="strong"] .card { box-shadow: 0 16px 34px rgba(0,0,0,.36), 0 4px 12px rgba(0,0,0,.26), 0 1px 4px rgba(0,0,0,.3); }

/* ============ 按钮（按钮反馈） ============ */
.btn {
  position: relative; overflow: hidden;
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 18px; border-radius: 11px;
  font-size: 14px; font-weight: 750; letter-spacing: .5px;
  color: #0a0a0a; white-space: nowrap;
  background: linear-gradient(135deg, var(--primary), var(--primary2));
  box-shadow: 0 5px 16px color-mix(in srgb, var(--primary) 26%, transparent);
  transition: transform .16s ease, box-shadow .22s ease, filter .22s ease;
}
.btn .ic { width: 16px; height: 16px; }
.btn:hover { filter: brightness(1.07); box-shadow: 0 9px 22px color-mix(in srgb, var(--primary) 40%, transparent); }
.btn:active { transform: translateY(1px) scale(.955); filter: brightness(.96); }

/* ripple 波纹反馈 */
.ripple-ink { position: absolute; border-radius: 50%; pointer-events: none; transform: scale(0); background: rgba(10,10,10,.25); }
.ripple-ink.run { animation: rippleAnim .55s ease-out forwards; }
@keyframes rippleAnim { to { transform: scale(4); opacity: 0; } }

/* glow 发光反馈 */
html[data-btnfx="glow"] .btn { animation: btnGlow 2.6s ease-in-out infinite; }
@keyframes btnGlow {
  0%, 100% { box-shadow: 0 5px 16px color-mix(in srgb, var(--primary) 26%, transparent); }
  50% { box-shadow: 0 8px 28px color-mix(in srgb, var(--primary) 55%, transparent), 0 0 0 4px color-mix(in srgb, var(--primary) 12%, transparent); }
}
/* 仅 scale：无波纹、无发光 */
html[data-btnfx="scale"] .btn { box-shadow: none; }
html[data-btnfx="scale"] .btn:hover { box-shadow: 0 8px 20px color-mix(in srgb, var(--primary) 30%, transparent); }

/* 下载按钮大号变体 */
.btn-download { padding: 10px 20px; }
.btn-download .ic { width: 17px; height: 17px; }

/* ============ 文字动效 ============ */
/* gradientShift：渐变流光 */
.tx-grad {
  background: linear-gradient(90deg, var(--primary), var(--primary2), #fff, var(--primary2), var(--primary));
  background-size: 220% auto;
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}
html[data-textfx="gradientShift"] .tx-grad { animation: gradShift 6s linear infinite; }
@keyframes gradShift { to { background-position: -220% center; } }

/* glowPulse：呼吸辉光 */
html[data-textfx="glowPulse"] .hero-t2 {
  animation: glowPulse 2.8s ease-in-out infinite;
}
@keyframes glowPulse {
  0%, 100% { text-shadow: 0 0 14px color-mix(in srgb, var(--primary) 35%, transparent); }
  50% { text-shadow: 0 0 26px color-mix(in srgb, var(--primary) 70%, transparent), 0 0 44px color-mix(in srgb, var(--primary2) 40%, transparent); }
}

/* 分类页签进场错落 */
.cat-tab { opacity: 0; animation: none; }
html[data-motion="on"] .cat-tab { animation: tabIn .5s ease forwards; animation-delay: calc(var(--d, 0ms) + 120ms); }
@keyframes tabIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

/* ============ 元素进场 ============ */
.reveal { opacity: 0; }
html[data-entrance="fadeUp"] .reveal { transform: translateY(22px); }
html[data-entrance="zoom"] .reveal { transform: scale(.92) translateY(8px); }
html[data-entrance="slideLeft"] .reveal { transform: translateX(34px); }
html[data-entrance="none"] .reveal { opacity: 1; transform: none; }

.reveal.in-view {
  opacity: 1; transform: none;
  animation: revealIn var(--dur, .6s) cubic-bezier(.22, .8, .3, 1) forwards;
  animation-delay: var(--d, 0ms);
}
@keyframes revealIn {
  from { opacity: 0; transform: translateY(22px); }
  to { opacity: 1; transform: none; }
}
/* zoom / slide 的 revealIn 起始态由 data-entrance 的 transform 兜底，此处 from 用 translateY 会在少数组合下抖动，
   因此按样式分别定义起点： */
html[data-entrance="zoom"] .reveal.in-view { animation-name: revealZoom; }
@keyframes revealZoom { from { opacity: 0; transform: scale(.92) translateY(8px); } to { opacity: 1; transform: none; } }
html[data-entrance="slideLeft"] .reveal.in-view { animation-name: revealSlide; }
@keyframes revealSlide { from { opacity: 0; transform: translateX(34px); } to { opacity: 1; transform: none; } }

/* Hero 加载进场序列 */
.hero-inner > * { opacity: 0; }
html[data-motion="on"] .hero-badge { animation: heroIn .6s ease forwards; }
html[data-motion="on"] .hero-title { animation: heroIn .7s .1s ease forwards; }
html[data-motion="on"] .hero-sub { animation: heroIn .7s .22s ease forwards; }
html[data-motion="on"] .hero-search { animation: heroIn .7s .34s ease forwards; }
html[data-motion="on"] .hero-stats { animation: heroIn .7s .46s ease forwards; }
@keyframes heroIn { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: none; } }

/* 进场速度 */
html[data-entrance-speed="slow"] { --dur: .95s; }
html[data-entrance-speed="normal"] { --dur: .6s; }
html[data-entrance-speed="fast"] { --dur: .38s; }

/* ============ 动效停止 ============ */
/* 后台/用户/系统 任一路径设置 data-motion="off" 时，全局动画与过渡全部终止 */
html[data-motion="off"] *, html[data-motion="off"] *::before, html[data-motion="off"] *::after {
  animation: none !important;
  transition: none !important;
  scroll-behavior: auto !important;
}
html[data-motion="off"] .reveal, html[data-motion="off"] .hero-inner > *,
html[data-motion="off"] .cat-tab { opacity: 1 !important; transform: none !important; }
html[data-motion="off"] .ripple-ink { display: none; }
html[data-motion="off"] .orb-a, html[data-motion="off"] .orb-b { animation: none !important; }
html[data-motion="off"] .card, html[data-motion="off"] .btn { box-shadow: none; }

/* 系统减弱动效偏好（保守兜底：也直接关，避免用户不适） */
@media (prefers-reduced-motion: reduce) {
  html[data-motion="on"] { animation-duration: .01ms !important; }
}

/* ============ 空状态 / 页脚 / Toast ============ */
.empty {
  text-align: center; color: var(--text2); padding: 70px 0 90px; font-size: 15px;
}
.empty .ic { width: 44px; height: 44px; opacity: .4; margin-bottom: 14px; }

.footer {
  margin-top: 46px;
  border-top: 1px solid var(--border);
  background: linear-gradient(180deg, transparent, color-mix(in srgb, var(--panel) 60%, var(--bg)));
  padding: 30px 0 40px;
}
.footer-inner { display: flex; flex-direction: column; gap: 8px; align-items: center; text-align: center; }
.footer-text { color: var(--text2); font-size: 13px; }
.footer-meta { display: flex; align-items: center; gap: 14px; color: var(--text2); font-size: 12px; opacity: .9; }

.toast {
  position: fixed; left: 50%; bottom: 34px; z-index: 300;
  transform: translateX(-50%) translateY(14px);
  display: flex; align-items: center; gap: 9px;
  padding: 11px 20px; border-radius: 12px; font-size: 13.5px;
  background: var(--panel); color: var(--text);
  border: 1px solid color-mix(in srgb, var(--primary) 55%, var(--border));
  box-shadow: 0 14px 34px rgba(0,0,0,.45);
  opacity: 0; pointer-events: none;
  transition: opacity .28s ease, transform .28s ease;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast .ic { color: var(--primary); }

/* ============ 响应式 ============ */
@media (max-width: 900px) {
  .topbar-inner { height: 56px; gap: 10px; }
  .brand-name { font-size: 16.5px; }
  .hero { padding: 46px 0 44px; }
  .hero-title { letter-spacing: 0; }
  .hero-stats { gap: 24px; }
}
@media (max-width: 640px) {
  .wrap { padding: 0 14px; }
  .grid { grid-template-columns: 1fr; }
  .nav-cats { -webkit-overflow-scrolling: touch; margin-right: -14px; padding-right: 14px; }
  .cat-tab { padding: 7px 13px; }
  .section { padding-top: 24px; }
  .stat b { font-size: 21px; }
  .card-surface { padding: 17px; }
}