/* ==========================================================================
   wechat-mmmy · 喵喵美颜 · 美学素材相册
   亮色 · 简约 · Editorial / 杂志感 · 移动优先
   ========================================================================== */

:root {
  --bg: #faf9f7;
  --card: #ffffff;
  --ink: #23201c;
  --ink-soft: #7a746b;
  --line: #ece7df;
  --accent: #c76e6e;
  --accent-soft: #f3e0e0;
  --radius: 16px;
  --shadow: 0 6px 24px rgba(35, 32, 28, 0.06);
  --max-w: 1120px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', -apple-system,
    BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body.no-scroll {
  overflow: hidden;
}

/* ---------- 顶部 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(250, 249, 247, 0.9);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 18px 20px 12px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}

.logo {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.slogan {
  font-size: 13px;
  color: var(--ink-soft);
  letter-spacing: 1px;
}

/* ---------- 主导航 ---------- */
.brand-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.site-nav {
  display: flex;
  gap: 6px;
}

.site-nav a {
  font-size: 14px;
  color: var(--ink-soft);
  text-decoration: none;
  padding: 6px 12px;
  border-radius: 999px;
  transition: background 0.2s, color 0.2s;
}

.site-nav a:hover {
  color: var(--ink);
  background: var(--accent-soft);
}

.site-nav a.is-active {
  color: #fff;
  background: var(--ink);
}

/* ---------- 分类 Tab ---------- */
.tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  -webkit-overflow-scrolling: touch;
}

.tab {
  flex: 0 0 auto;
  appearance: none;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--ink-soft);
  font-size: 14px;
  padding: 8px 16px;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
  font-family: inherit;
}

.tab:hover {
  border-color: var(--accent);
  color: var(--ink);
}

.tab.is-active {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}

/* ---------- 主区 ---------- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 28px 20px 60px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 18px;
}

.empty {
  text-align: center;
  color: var(--ink-soft);
  padding: 60px 0;
  font-size: 15px;
}

/* ---------- 卡片 ---------- */
.card {
  margin: 0;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(35, 32, 28, 0.12);
}

.card-img {
  display: block;
  width: 100%;
  object-fit: cover;
  background: var(--accent-soft);
}

.card--portrait .card-img {
  aspect-ratio: 3 / 4;
}

.card--landscape .card-img {
  aspect-ratio: 16 / 9;
}

.card-cap {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 14px;
}

.card-cap .cat {
  flex: 0 0 auto;
  font-size: 12px;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 999px;
  padding: 2px 10px;
}

.card-cap .title {
  font-size: 14px;
  color: var(--ink);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ---------- 大图预览 ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(20, 18, 16, 0.88);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s, visibility 0.25s;
  padding: 20px;
}

.lightbox.is-open {
  opacity: 1;
  visibility: visible;
}

.lb-figure {
  margin: 0;
  max-width: min(900px, 92vw);
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.lb-figure img {
  max-width: 100%;
  max-height: 76vh;
  border-radius: 12px;
  object-fit: contain;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.lb-cap {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: 15px;
}

.lb-cap .cat {
  font-size: 12px;
  color: #fff;
  background: rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  padding: 2px 10px;
}

.lb-close {
  position: absolute;
  top: 20px;
  right: 22px;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: transparent;
  color: #fff;
  font-size: 28px;
  line-height: 1;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.2s;
}

.lb-close:hover {
  background: rgba(255, 255, 255, 0.15);
}

/* ---------- 页脚 ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 26px 20px 40px;
  text-align: center;
  color: var(--ink-soft);
  font-size: 13px;
}

.site-footer .ver {
  display: inline-block;
  margin-bottom: 6px;
  font-size: 12px;
  color: var(--ink);
  background: var(--accent-soft);
  border-radius: 999px;
  padding: 2px 12px;
}

.site-footer .note {
  display: block;
  letter-spacing: 0.5px;
}

/* ---------- 关注引导 CTA ---------- */
.cta {
  margin: 34px auto 0;
  max-width: var(--max-w);
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px 24px;
}

.cta-tag {
  flex: 0 0 auto;
  font-size: 13px;
  color: #fff;
  background: var(--accent);
  border-radius: 999px;
  padding: 4px 12px;
}

.cta-text {
  margin: 0;
  color: var(--ink-soft);
  font-size: 15px;
}

/* ---------- 关于页 ---------- */
.page {
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 20px 60px;
}

.page h1 {
  font-size: 28px;
  margin: 0 0 6px;
}

.page .sub {
  color: var(--ink-soft);
  margin: 0 0 28px;
}

.card-box {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}

.card-box h2 {
  font-size: 18px;
  margin: 0 0 8px;
}

.card-box p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 15px;
}

/* ---------- 工具页 ---------- */
.tool-intro {
  margin-bottom: 22px;
}

.tool-intro h1 {
  font-size: 26px;
  margin: 0 0 6px;
}

.tool-intro p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 15px;
}

.tool-wrap {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 24px;
  align-items: start;
}

.tool-controls {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  position: sticky;
  top: 92px;
}

.samples {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.samples .label {
  font-size: 13px;
  color: var(--ink-soft);
}

.sample-btn,
.upload-btn {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--ink-soft);
  font-size: 13px;
  padding: 6px 12px;
  border-radius: 999px;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.sample-btn:hover,
.upload-btn:hover {
  border-color: var(--accent);
  color: var(--ink);
}

.sample-btn.is-active {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}

.sliders {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin: 20px 0;
}

.sliders label {
  display: grid;
  grid-template-columns: 52px 1fr 44px;
  gap: 10px;
  align-items: center;
  font-size: 13px;
  color: var(--ink-soft);
}

.sliders input[type='range'] {
  width: 100%;
  accent-color: var(--accent);
}

.sliders .val {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.reset-btn {
  appearance: none;
  width: 100%;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--ink);
  font-size: 14px;
  padding: 9px 0;
  border-radius: 999px;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.2s;
}

.reset-btn:hover {
  background: var(--accent-soft);
}

.compare {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  background: #eee;
  user-select: none;
  touch-action: none;
}

.c-before {
  display: block;
  width: 100%;
  height: auto;
}

.c-after-wrap {
  position: absolute;
  inset: 0;
  clip-path: inset(0 0 0 var(--pos, 50%));
}

.c-after {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.c-tag {
  position: absolute;
  top: 12px;
  z-index: 2;
  font-size: 12px;
  padding: 2px 10px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.42);
  color: #fff;
  pointer-events: none;
}

.c-tag-before {
  left: 12px;
}

.c-tag-after {
  right: 12px;
}

.c-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--pos, 50%);
  width: 2px;
  background: rgba(255, 255, 255, 0.92);
  transform: translateX(-1px);
  pointer-events: none;
  z-index: 2;
}

.c-handle span {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  transform: translate(-50%, -50%);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 1px 6px rgba(0, 0, 0, 0.3);
}

.c-range {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: ew-resize;
  z-index: 3;
}

.tool-note {
  margin-top: 22px;
  font-size: 13px;
  color: var(--ink-soft);
}

/* ---------- 窄屏 ---------- */
@media (max-width: 560px) {
  .grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 12px;
  }

  .logo {
    font-size: 19px;
  }

  .card-cap {
    padding: 10px 12px;
  }

  .card-cap .title {
    font-size: 13px;
  }

  .brand-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .tool-wrap {
    grid-template-columns: 1fr;
  }

  .tool-controls {
    position: static;
    order: 2;
  }

  .tool-intro h1 {
    font-size: 22px;
  }
}