/* ==========================================================================
   茉莉吃瓜网 · UI 2.0 升级层  (skin.css)
   --------------------------------------------------------------------------
   加载顺序：在 app.css 之后
   原则    ：只做「覆盖式增强」，不改动任何原有 DOM 结构与 app.css 本体
   回滚    ：删除本文件 + 去掉 head.html 里新增的一行 <link> 即可
   ========================================================================== */

/* ---------- 1. 设计令牌重校准 ---------- */
:root {
  --brand-2: #048a63;
  --brand-3: #24d6a6;
  --ink: #0b1220;
  --ink-2: #2b3a4e;
  --ink-3: #5a6b81;
  --ink-4: #8998ac;
  --line: #e5ecf4;
  --line-2: #eef3f8;
  --bg: #f5f8fb;
  --r-sm: 10px;
  --r: 16px;
  --r-lg: 22px;

  --grad-brand: linear-gradient(135deg, #24d6a6 0%, #10b981 44%, #048a63 100%);
  --grad-hero: linear-gradient(158deg, #062f27 0%, #075e46 38%, #059669 74%, #10b981 100%);

  --sd-1: 0 1px 2px rgba(13, 35, 28, .05), 0 4px 14px rgba(13, 35, 28, .05);
  --sd-2: 0 2px 6px rgba(13, 35, 28, .06), 0 12px 28px rgba(13, 35, 28, .08);
  --sd-3: 0 10px 24px rgba(13, 35, 28, .10), 0 28px 60px rgba(13, 35, 28, .12);
  --sd-brand: 0 8px 22px rgba(16, 185, 129, .30);
}

/* ---------- 2. 全局底噪 ---------- */
body {
  background:
    radial-gradient(1200px 520px at 50% -280px, rgba(16, 185, 129, .11), transparent 70%),
    linear-gradient(180deg, #f7fbf9 0%, var(--bg) 340px, #f4f7fb 100%);
  background-attachment: fixed;
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}


::selection {
  background: rgba(16, 185, 129, .22);
  color: #05231b;
}

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: #cfdbe6;
  border: 3px solid transparent;
  border-radius: 10px;
  background-clip: content-box;
}
::-webkit-scrollbar-thumb:hover { background: #b3c4d4; background-clip: content-box; }

/* ---------- 3. 顶部导航 ---------- */
.nav {
  background: rgba(255, 255, 255, .78);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid rgba(229, 236, 244, .9);
  transition: background .3s var(--ease), box-shadow .3s var(--ease);
}

.nav.scrolled {
  background: rgba(255, 255, 255, .93);
  box-shadow: 0 6px 24px rgba(13, 35, 28, .08);
}

.logo-mark {
  background: var(--grad-brand);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .45), 0 4px 12px rgba(16, 185, 129, .35);
  transition: transform .38s var(--ease), box-shadow .38s var(--ease);
}

.logo:hover .logo-mark {
  transform: rotate(-6deg) scale(1.05);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .55), 0 8px 18px rgba(16, 185, 129, .42);
}

.logo { letter-spacing: -.2px; font-weight: 800; }

.nav-search input {
  height: 38px;
  border-color: transparent;
  background: #eff4f9;
  box-shadow: inset 0 1px 2px rgba(13, 35, 28, .05);
  transition: background .25s var(--ease), box-shadow .25s var(--ease);
}
.nav-search input:focus {
  background: #fff;
  box-shadow: 0 0 0 4px rgba(16, 185, 129, .14), inset 0 1px 2px rgba(13, 35, 28, .04);
}

.nav-link {
  font-weight: 600;
  border-radius: 10px;
  transition: background .22s var(--ease), color .22s var(--ease);
}
.nav-link:hover { background: rgba(16, 185, 129, .09); }
.nav-link.active {
  color: var(--brand-2);
  background: rgba(16, 185, 129, .12);
}

/* ---------- 4. 按钮 ---------- */
.btn {
  border-radius: var(--r-full);
  font-weight: 700;
  letter-spacing: .1px;
  transition: transform .2s var(--ease), box-shadow .25s var(--ease),
              background .25s var(--ease), border-color .25s var(--ease), color .2s var(--ease);
}

.btn-primary {
  background: var(--grad-brand);
  border-color: transparent;
  color: #fff;
  box-shadow: var(--sd-brand), inset 0 1px 0 rgba(255, 255, 255, .35);
}
.btn-primary:hover {
  transform: translateY(-1.5px);
  box-shadow: 0 12px 28px rgba(16, 185, 129, .38), inset 0 1px 0 rgba(255, 255, 255, .40);
}
.btn-primary:active { transform: translateY(0); }

.btn-ghost {
  background: #fff;
  border-color: var(--line);
  box-shadow: var(--sd-1);
}
.btn-ghost:hover {
  border-color: rgba(16, 185, 129, .45);
  background: #fff;
  box-shadow: var(--sd-2);
}

.btn-lg {
  height: 50px;
  padding: 0 28px;
  font-size: 15.5px;
  border-radius: var(--r-full);
}

/* ---------- 5. 首页 Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding: 46px 40px 40px;
  border-radius: 26px;
  background: var(--grad-hero);
  color: #fff;
  box-shadow: 0 18px 44px rgba(4, 60, 46, .28), inset 0 1px 0 rgba(255, 255, 255, .18);
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(560px 240px at 88% 10%, rgba(36, 214, 166, .42), transparent 70%),
    radial-gradient(420px 220px at 6% 98%, rgba(59, 130, 246, .20), transparent 72%),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, .05) 0 1px, transparent 1px 64px),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, .05) 0 1px, transparent 1px 64px);
  -webkit-mask-image: radial-gradient(130% 110% at 50% 0%, #000 26%, transparent 80%);
  mask-image: radial-gradient(130% 110% at 50% 0%, #000 26%, transparent 80%);
}

.hero h1 {
  font-size: clamp(26px, 3.4vw, 38px);
  line-height: 1.16;
  letter-spacing: -1.2px;
  color: #fff;
  text-shadow: 0 2px 18px rgba(2, 32, 24, .32);
}

.hero p { color: rgba(255, 255, 255, .86); }

.hero-stats { gap: 10px; }

.hero-stat {
  padding: 11px 15px;
  border-radius: 14px;
  background: rgba(255, 255, 255, .09);
  border: 1px solid rgba(255, 255, 255, .18);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  transition: transform .25s var(--ease), background .25s var(--ease);
}
.hero-stat:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, .14);
}
.hero-stat b {
  font-variant-numeric: tabular-nums;
  letter-spacing: -.4px;
  font-size: 21px;
}
.hero-stat span { color: rgba(255, 255, 255, .74); }

/* ---------- 6. 抖音解析卡片 ---------- */
.dy-card {
  border-radius: 26px;
  border: 1.5px solid transparent;
  background:
    linear-gradient(#fff, #fff) padding-box,
    linear-gradient(135deg, rgba(16, 185, 129, .70), rgba(59, 130, 246, .28) 46%, rgba(16, 185, 129, .10)) border-box;
  box-shadow: 0 10px 30px rgba(13, 35, 28, .07);
  transition: box-shadow .3s var(--ease), transform .3s var(--ease);
}
.dy-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 44px rgba(13, 35, 28, .12);
}

.dy-badge {
  height: 24px;
  padding: 0 10px;
  font-weight: 800;
  letter-spacing: .4px;
  background: var(--grad-brand);
  box-shadow: 0 4px 12px rgba(16, 185, 129, .32);
}

.dy-title {
  font-size: 23px;
  letter-spacing: -.6px;
  color: var(--ink);
}

.dy-desc { color: var(--ink-3); line-height: 1.72; }

.dy-form {
  gap: 10px;
  padding: 15px;
  border-radius: 18px;
  background: linear-gradient(180deg, #f6fcf9, #eef8f3);
  border: 1px solid rgba(16, 185, 129, .16);
  box-shadow: inset 0 1px 2px rgba(13, 35, 28, .04);
}

.dy-input {
  height: 46px;
  border-radius: var(--r-sm);
  border-color: rgba(16, 185, 129, .16);
  background: #fff;
  font-size: 14.5px;
  box-shadow: inset 0 1px 2px rgba(13, 35, 28, .05);
  transition: box-shadow .25s var(--ease), border-color .25s var(--ease);
}
.dy-input:focus {
  border-color: rgba(16, 185, 129, .60);
  box-shadow: 0 0 0 4px rgba(16, 185, 129, .15);
}

.dy-btn {
  height: 48px;
  border-radius: var(--r-sm);
  letter-spacing: .6px;
  font-weight: 800;
  background: var(--grad-brand);
  box-shadow: var(--sd-brand), inset 0 1px 0 rgba(255, 255, 255, .35);
  transition: transform .2s var(--ease), box-shadow .25s var(--ease), filter .2s var(--ease);
}
.dy-btn:hover:not(:disabled) {
  transform: translateY(-1.5px);
  box-shadow: 0 12px 28px rgba(16, 185, 129, .40), inset 0 1px 0 rgba(255, 255, 255, .4);
  filter: saturate(1.06);
}
.dy-btn:active:not(:disabled) { transform: translateY(0); }

.dy-hint { color: var(--ink-4); font-size: 12.5px; }
.dy-hint.dy-ok { color: var(--brand-2); font-weight: 700; }
.dy-hint.dy-err { font-weight: 700; }

.dy-points li {
  background: linear-gradient(180deg, #f2fbf7, #eafaf3);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .8);
}

/* ---------- 7. 筛选栏 / 标签 ---------- */
.tabs {
  background: #eaf0f6;
  box-shadow: inset 0 1px 2px rgba(13, 35, 28, .06);
}

.tab {
  font-weight: 600;
  transition: background .22s var(--ease), color .22s var(--ease), box-shadow .22s var(--ease);
}
.tab.active {
  background: #fff;
  color: var(--brand-2);
  box-shadow: 0 1px 2px rgba(13, 35, 28, .08), 0 4px 12px rgba(13, 35, 28, .07);
}

.tag-chip {
  background: #fff;
  border-color: var(--line);
  box-shadow: var(--sd-1);
  font-weight: 600;
  transition: transform .2s var(--ease), border-color .2s var(--ease),
              color .2s var(--ease), background .2s var(--ease);
}
.tag-chip:hover {
  transform: translateY(-1px);
  border-color: rgba(16, 185, 129, .45);
  color: var(--brand-2);
  background: #fff;
}

/* ---------- 8. 内容卡片 ---------- */
.post-card {
  padding: 20px;
  border-radius: 20px;
  border-color: var(--line);
  background: #fff;
  box-shadow: var(--sd-1);
  transition: transform .28s var(--ease), box-shadow .28s var(--ease), border-color .28s var(--ease);
}

.post-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  bottom: 16px;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: var(--grad-brand);
  opacity: 0;
  transform: scaleY(.4);
  transform-origin: center;
  transition: opacity .28s var(--ease), transform .28s var(--ease);
}

.post-card:hover {
  transform: translateY(-3px);
  border-color: rgba(16, 185, 129, .34);
  box-shadow: var(--sd-3);
}
.post-card:hover::before {
  opacity: 1;
  transform: scaleY(1);
}

.post-title {
  font-size: 18px;
  letter-spacing: -.3px;
  transition: color .2s var(--ease);
}
.post-card:hover .post-title { color: var(--brand-2); }

.post-cover { border-radius: var(--r); }

.post-excerpt { color: var(--ink-3); }
.post-meta { color: var(--ink-4); }

.card {
  border-radius: var(--r-lg);
  border-color: var(--line);
  background: #fff;
  box-shadow: var(--sd-1);
}

/* ---------- 9. 侧栏 ---------- */
.side-head {
  justify-content: flex-start;
  gap: 8px;
  font-size: 14.5px;
  letter-spacing: -.2px;
}
.side-head::before {
  content: "";
  flex: 0 0 auto;
  width: 3px;
  height: 14px;
  border-radius: 2px;
  background: var(--grad-brand);
}

.side-notice {
  border-radius: 18px;
  background: linear-gradient(160deg, #effbf5, #f7fdfa 62%, #fff);
  border-color: rgba(16, 185, 129, .20);
  box-shadow: 0 6px 18px rgba(16, 185, 129, .08);
}

.hot-rank { font-variant-numeric: tabular-nums; }

.stat-row b, .stat-row strong, .stat-row .num { font-variant-numeric: tabular-nums; }

/* ---------- 10. 空状态 / 表单 / 提示 ---------- */
.empty {
  padding: 64px 22px;
  border-radius: 24px;
  border: 1.5px dashed #d9e5ef;
  background: linear-gradient(180deg, #fff, #f8fbfe);
  color: var(--ink-3);
}

.empty-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(180deg, #ecfff8, #daf6ea);
  border: 1px solid rgba(16, 185, 129, .18);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .9), 0 8px 20px rgba(16, 185, 129, .14);
}

.textarea, .select, textarea, select {
  transition: box-shadow .22s var(--ease), border-color .22s var(--ease);
}

.textarea:focus, .select:focus, textarea:focus, select:focus {
  outline: 0;
  border-color: rgba(16, 185, 129, .55);
  box-shadow: 0 0 0 4px rgba(16, 185, 129, .14);
}

::placeholder { color: var(--ink-4); }

.alert {
  border-radius: var(--r);
  box-shadow: var(--sd-1);
}

.toast {
  border-radius: var(--r-full);
  box-shadow: 0 10px 30px rgba(13, 35, 28, .18);
}

.mc-modal { border-radius: var(--r-lg); }

.pager a, .pager span { border-radius: 10px; }

/* ---------- 11. 页脚 ---------- */
.foot {
  margin-top: 26px;
  padding: 30px 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, .65), #f1f7fb);
  border-top: 1px solid var(--line);
}
.foot a:hover { color: var(--brand-2); }

/* ---------- 12. 滚动进场动画（仅在 JS 标记 ui2 后生效） ---------- */
html.ui2 .rv {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .55s var(--ease), transform .55s var(--ease);
  will-change: opacity, transform;
}
html.ui2 .rv.in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html.ui2 .rv,
  html.ui2 .rv.in {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  .post-card:hover,
  .dy-card:hover,
  .dy-btn:hover,
  .btn-primary:hover,
  .hero-stat:hover,
  .tag-chip:hover,
  .logo:hover .logo-mark {
    transform: none !important;
  }
}

/* ---------- 13. 键盘可达性 ---------- */
a:focus-visible,
button:focus-visible,
.btn:focus-visible,
.tab:focus-visible,
.tag-chip:focus-visible,
.dy-input:focus-visible,
.dy-btn:focus-visible,
.usermenu-btn:focus-visible {
  outline: 2px solid rgba(16, 185, 129, .85);
  outline-offset: 2px;
}

/* ---------- 14. 关键形态收口（防止通用圆角误伤胶囊元素） ---------- */
.nav-search input { border-radius: var(--r-full); }
.tabs { border-radius: var(--r-full); }
.tab { border-radius: var(--r-full); }
.tag-chip { border-radius: var(--r-full); }
.btn, .btn-lg { border-radius: var(--r-full); }
.side-head { justify-content: flex-start; }

/* ---------- 15. 响应式收口 ---------- */
@media (max-width: 1024px) {
  .dy-card { padding: 24px 22px; gap: 22px; border-radius: 24px; }
}

@media (max-width: 900px) {
  .hero { padding: 36px 26px 32px; border-radius: 22px; }
  .hero h1 { font-size: clamp(24px, 5.2vw, 32px); letter-spacing: -1px; }
  .dy-card { padding: 22px 18px; border-radius: 22px; }
  .dy-title { font-size: 21px; }
}

@media (max-width: 640px) {
  .hero { padding: 28px 20px 24px; border-radius: 20px; }
  .hero h1 { font-size: 25px; letter-spacing: -.7px; }
  .hero-stats { gap: 8px; }
  .hero-stat {
    flex: 1 1 calc(50% - 9px);
    padding: 10px 12px;
    border-radius: 12px;
  }
  .hero-stat b { font-size: 18px; }
  .dy-card { padding: 20px 16px; border-radius: 20px; gap: 18px; }
  .dy-title { font-size: 18.5px; letter-spacing: -.3px; }
  .dy-desc { font-size: 13px; }
  .dy-form { padding: 13px; border-radius: 16px; gap: 9px; }
  .dy-input { height: 45px; font-size: 14px; }
  .dy-btn { height: 45px; font-size: 14.5px; letter-spacing: .3px; }
  .post-card { padding: 16px; border-radius: 18px; }
  .post-title { font-size: 16.5px; }
  .empty { padding: 50px 18px; border-radius: 20px; }
}

@media (max-width: 380px) {
  .hero h1 { font-size: 22px; }
  .dy-card { padding: 18px 14px; }
  .dy-title { font-size: 17.5px; }
}
/* 抖音下载：未登录引导 */
.dy-guest { text-align: center; padding: 6px 2px 2px; }
.dy-guest-t { font-size: 15.5px; font-weight: 800; color: var(--ink-1, #1c1c1e); margin: 0 0 8px; }
.dy-guest-d { font-size: 13px; line-height: 1.72; color: var(--ink-4, #8a8a8e); margin: 0 0 14px; }
.dy-login { display: inline-flex; align-items: center; justify-content: center; text-decoration: none; margin-bottom: 10px; }
.dy-guest .dy-hint { margin-top: 2px; }