/* ============================================
   发夹小铺 · 极简纯白 + 乳白
   主色：纯白 #FFFFFF / 乳白 #FAF9F7
   强调：深灰（去粉），温柔靠留白与圆角
   背景：全屏视频 + 文字适配（白字 + 阴影）
   PC + 移动端自适应
   ============================================ */
:root {
  --cream: #FAF9F7;         /* 乳白 */
  --white: #FFFFFF;         /* 纯白 */
  --line: #EDEBE8;          /* 极淡分隔线 */
  --text: #2E2C2A;          /* 主文字 深灰 */
  --text-light: #8A8580;    /* 次要文字 */
  --accent: #3A3733;        /* 按钮/强调 深灰 */
  --accent-soft: #6B6660;   /* 按钮 hover */
  --shadow: 0 6px 20px rgba(0, 0, 0, 0.06);
  --radius: 18px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
  background: var(--cream);
  color: var(--text);
  line-height: 1.7;
  font-size: 15px;
}

/* ---------- 全屏背景视频 ---------- */
.bg-video-wrap {
  position: fixed; inset: 0; z-index: -1; overflow: hidden;
  background: #ffffff;   /* 视频放不了时（手机）兜底：纯白 */
}
.bg-video-wrap video {
  width: 100%; height: 100%; object-fit: cover;   /* 铺满不变形 */
  display: block;
}
/* 视频上盖一层很淡的白色纱，保证文字可读（不压暗，保持正常亮度） */
.bg-video-wrap::after {
  content: ''; position: absolute; inset: 0;
  background: rgba(255, 255, 255, 0.28);
}

/* 手机端：同样显示背景视频（用户要求） */
@media (max-width: 768px) {
  .bg-video-wrap { background: #ffffff; }
  .bg-video-wrap video { display: block; }
}

/* 低端设备/省流量模式：不加载背景视频，退回纯白 */
@media (prefers-reduced-motion: reduce) {
  .bg-video-wrap video { display: none; }
  .bg-video-wrap::after { display: none; }
}

a { color: var(--accent); text-decoration: none; transition: 0.2s; }
a:hover { opacity: 0.7; }
img { max-width: 100%; display: block; }

.container { max-width: 1140px; margin: 0 auto; padding: 0 18px; }

/* ---------- 顶栏 ---------- */
.site-header {
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 50;
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px; gap: 12px;
}
.brand { font-size: 20px; font-weight: 700; color: var(--text); letter-spacing: 1px; }
.brand span { font-size: 15px; color: var(--text-light); font-weight: 400; margin-left: 6px; }
.nav-links { display: flex; align-items: center; gap: 20px; }
.nav-links a { color: var(--text); font-size: 14px; }
.nav-links a:hover { color: #000; }

/* ---------- Gooey Nav（原生重写·右上角液态导航） ---------- */
.gooey-nav {
  position: relative;
  isolation: isolate;
}
/* 液态容器：blur + contrast 让指示块与他人粘连成果冻 */
.gooey-nav .gooey-goo {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  filter: blur(8px) contrast(18);
  border-radius: 999px;
  overflow: hidden;
  opacity: 0; transition: opacity .25s;
}
.gooey-nav.gooey-on .gooey-goo { opacity: 1; }
.gooey-nav .gooey-blob {
  position: absolute; top: 4px; left: 0; height: calc(100% - 8px);
  width: 0; border-radius: 999px;
  background: linear-gradient(120deg, #ffb3d1 0%, #ff8fb8 55%, #ffa9c9 100%);
  will-change: transform, width;
}
/* 菜单项浮到液态之上 */
.gooey-nav a.gooey-item {
  position: relative; z-index: 2;
  padding: 7px 14px; border-radius: 999px;
  transition: color .2s;
}
.gooey-nav.gooey-on a.gooey-item:hover { color: #7a2b47; }

/* 手机端不启用 gooey（保留汉堡菜单） */
@media (max-width: 768px) {
  .gooey-nav .gooey-goo { display: none; }
  .gooey-nav a.gooey-item { padding: 0; }
}
.nav-user { display: flex; align-items: center; gap: 12px; font-size: 14px; }
.badge-user {
  background: var(--line); color: var(--text);
  padding: 3px 12px; border-radius: 20px; font-size: 13px;
}
.menu-toggle { display: none; font-size: 22px; background: none; border: none; color: var(--text); cursor: pointer; }

/* ---------- 按钮（无框无底无特效·仅文字） ---------- */
.btn {
  display: inline-block; border: none; background: transparent;
  color: var(--text-light);
  padding: 8px 10px; border-radius: 0; font-size: 13px;
  font-weight: 400; font-family: inherit; text-decoration: none;
  letter-spacing: .5px; opacity: .85;
}
.btn:hover { color: var(--accent); opacity: 1; }
.btn-ghost { background: transparent; color: var(--text-light); }
.btn-ghost:hover { color: var(--accent); }
.btn-sm { padding: 6px 8px; font-size: 12px; }
.btn-block { width: 100%; display: block; text-align: center; }
.btn[disabled] { opacity: .4; cursor: not-allowed; }
/* 卡片「查看详情」：仅浅淡小字，无框无特效 */
.card-more { font-size: 12px; color: var(--text-light); opacity: .8; letter-spacing: .5px; }

/* ---------- 首页 Hero（无卡片框，内容直接叠在背景上） ---------- */
.hero {
  text-align: center; padding: 72px 20px; margin: 28px 0;
  background: transparent;
}
.hero h1 {
  font-size: 36px; color: #1E1C1A; margin-bottom: 14px; letter-spacing: 2px;
  text-shadow: 0 1px 12px rgba(255,255,255,0.9), 0 1px 2px rgba(0,0,0,0.08);
}
.hero p { color: var(--text-light); font-size: 16px; margin-bottom: 24px; }
.hero .btn { margin: 0 6px; }

/* ---------- 欢迎页（网站入口·黑金+极光丝线） ---------- */
.welcome-page {
  min-height: 100vh; margin: 0; position: relative;
  display: flex; align-items: center; justify-content: center;
  background:
    radial-gradient(1200px 700px at 50% 0%, rgba(212, 175, 55, .18), transparent 65%),
    radial-gradient(900px 600px at 85% 110%, rgba(160, 110, 20, .16), transparent 70%),
    linear-gradient(160deg, #0a0806 0%, #14100a 45%, #0a0806 100%);
  overflow: hidden;
}
.welcome-canvas {
  position: absolute; inset: 0; width: 100%; height: 100%;
  z-index: 0; display: block; opacity: .95;
}
.welcome-main { position: relative; z-index: 1; text-align: center; padding: 24px; animation: welcomeIn 1s ease-out both; }
@keyframes welcomeIn { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
.welcome-title {
  font-size: 64px; font-weight: 700; letter-spacing: 12px;
  color: #fff; margin: 0 0 18px;
  text-shadow:
    0 0 18px rgba(255, 236, 170, .35),
    0 0 46px rgba(212, 175, 55, .35);
}
.welcome-sub {
  font-size: 15px; letter-spacing: 5px; color: #fff;
  opacity: .85; margin: 0 0 46px; font-weight: 400;
  text-shadow: 0 0 14px rgba(255, 255, 255, .25);
}
/* 带金光特效的“请进”按钮 */
.welcome-btn {
  position: relative; display: inline-block;
  padding: 14px 54px; border-radius: 40px;
  text-decoration: none; letter-spacing: 7px;
  color: #ffe9b0; font-size: 16px; font-weight: 600;
  background: linear-gradient(100deg, #2a1f0e, #0f0b06 50%, #2a1f0e);
  border: 1px solid rgba(212, 175, 55, .65);
  box-shadow:
    0 0 18px rgba(212, 175, 55, .35),
    0 10px 30px rgba(0, 0, 0, .55),
    inset 0 0 14px rgba(212, 175, 55, .18);
  transition: transform .25s ease, box-shadow .35s ease, color .3s;
  animation: welcomeGlow 2.8s ease-in-out infinite;
  overflow: hidden;
}
.welcome-btn-text { position: relative; z-index: 2; }
/* 旋转金色流光环 */
.welcome-btn::before {
  content: ''; position: absolute; inset: -2px; border-radius: 42px;
  background: conic-gradient(from 0deg, #d4af37, #7a5c16, #ffe9b0, #d4af37, #7a5c16, #ffe9b0);
  filter: blur(7px); opacity: .8; z-index: -1;
  animation: welcomeSpin 4.5s linear infinite;
}
.welcome-btn:hover {
  transform: translateY(-2px) scale(1.03);
  color: #fff3cf;
  box-shadow:
    0 0 30px rgba(212, 175, 55, .7),
    0 14px 38px rgba(0, 0, 0, .6),
    inset 0 0 18px rgba(212, 175, 55, .3);
}
.welcome-btn:active { transform: translateY(0) scale(.99); }
@keyframes welcomeGlow {
  0%, 100% { box-shadow: 0 0 18px rgba(212, 175, 55, .35), 0 10px 30px rgba(0,0,0,.55), inset 0 0 14px rgba(212,175,55,.18); }
  50%      { box-shadow: 0 0 30px rgba(255, 233, 176, .6), 0 10px 30px rgba(0,0,0,.55), inset 0 0 14px rgba(212,175,55,.28); }
}
@keyframes welcomeSpin { to { transform: rotate(360deg); } }
@media (max-width: 600px) {
  .welcome-title { font-size: 40px; letter-spacing: 7px; }
  .welcome-sub { font-size: 13px; letter-spacing: 3px; }
  .welcome-btn { padding: 12px 42px; font-size: 15px; letter-spacing: 5px; }
}

/* ---------- 品牌介绍侧栏（右侧固定 / 手机端底部折叠） ---------- */
.intro-panel {
  position: fixed;
  top: 96px; right: 18px;
  width: 300px; max-width: 32vw;
  z-index: 40;
  background: rgba(255, 255, 255, 0.72);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-radius: var(--radius, 14px);
  padding: 18px 20px;
  box-shadow: 0 8px 26px rgba(0, 0, 0, 0.08);
  color: var(--text-light);
  font-size: 12.5px; line-height: 1.85;
  max-height: 72vh; overflow-y: auto;
}
.intro-panel p { margin: 0 0 10px; }
.intro-panel p:last-child { margin-bottom: 0; }
.intro-toggle { display: none; }
@media (max-width: 900px) {
  .intro-panel {
    position: static; width: auto; max-width: none;
    margin: 24px 0 0; padding: 0; box-shadow: none;
    background: rgba(255, 255, 255, 0.6);
    border-radius: var(--radius, 14px); overflow: hidden;
  }
  .intro-toggle {
    display: flex; align-items: center; justify-content: space-between;
    width: 100%; padding: 14px 18px; border: none; cursor: pointer;
    background: transparent; color: var(--text);
    font-size: 14px; font-family: inherit; letter-spacing: .5px;
  }
  .intro-toggle-icon { font-size: 18px; transition: transform .25s; }
  .intro-panel.open .intro-toggle-icon { transform: rotate(45deg); }
  .intro-body { display: none; padding: 0 18px 16px; }
  .intro-panel.open .intro-body { display: block; }
}
/* ---------- 区块标题 ---------- */
.section-title {
  font-size: 22px; color: var(--text); text-align: center;
  margin: 44px 0 26px; letter-spacing: 1px;
  text-shadow: 0 1px 10px rgba(255,255,255,0.9);
}
.section-title::after {
  content: ''; display: block; width: 46px; height: 3px;
  background: var(--accent); border-radius: 2px; margin: 12px auto 0;
}

/* ---------- 商品网格 ---------- */
.grid {
  display: grid; gap: 22px;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
}
.card {
  background: var(--white); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow); transition: 0.25s;
  display: flex; flex-direction: column; border: 1px solid var(--line);
}
.card:hover { transform: translateY(-4px); box-shadow: 0 12px 28px rgba(0,0,0,.12); }

/* ---------- 全息卡 HoloCard（原生重写） ---------- */
.holo-card {
  position: relative;
  border-radius: var(--holo-radius, 18px) !important;
  transform-style: preserve-3d;
  transition: transform .18s ease-out, box-shadow .25s;
  will-change: transform;
  overflow: hidden;
}
.holo-card:hover { box-shadow: 0 20px 46px rgba(0,0,0,.16); }
.holo-card .holo-inner { position: relative; z-index: 2; }
/* 全息镭射反光：镜像反射（鼠标左下→光在右上），局部光斑不铺满整卡 */
.holo-card .holo-shine {
  position: absolute; inset: 0; z-index: 3; pointer-events: none;
  border-radius: inherit; opacity: calc(var(--holo-strength, 0) * 0.55);
  transition: opacity .25s;
  background:
    radial-gradient(42% 42% at var(--holo-x, 50%) var(--holo-y, 50%),
      rgba(255,255,255,.42) 0%,
      rgba(255,182,214,.30) 16%,
      rgba(180,220,255,.26) 32%,
      rgba(198,255,222,.22) 48%,
      rgba(255,240,170,.20) 64%,
      rgba(216,190,255,.22) 80%,
      rgba(255,255,255,0) 100%);
  mix-blend-mode: overlay;
  -webkit-mask-image: radial-gradient(46% 46% at var(--holo-x, 50%) var(--holo-y, 50%), #000 0%, #000 42%, transparent 100%);
  mask-image: radial-gradient(46% 46% at var(--holo-x, 50%) var(--holo-y, 50%), #000 0%, #000 42%, transparent 100%);
}
/* 眩光高光斑：不紧贴鼠标，往反射方向偏移 */
.holo-card .holo-glare {
  position: absolute; inset: 0; z-index: 4; pointer-events: none;
  border-radius: inherit;
  opacity: calc(var(--holo-strength, 0) * 0.5);
  transition: opacity .25s;
  background: radial-gradient(22% 20% at var(--holo-gx, 50%) var(--holo-gy, 50%),
    rgba(255,255,255,.55), rgba(255,255,255,0) 72%);
  mix-blend-mode: soft-light;
}
/* 触摸回正时不要残留倾斜 */
.holo-card:not(.holo-active) {
  transition: transform .4s cubic-bezier(.22,.61,.36,1);
}

/* ---------- 商品卡片·极光流线边缘光（BorderGlow v2） ---------- */
.card.bg-glow {
  position: relative;
  border-color: rgba(255, 120, 170, calc(0.2 + var(--edge-proximity, 0) * 0.8));
  box-shadow: var(--shadow);
  transition: transform .25s, box-shadow .15s ease-out, border-color .15s ease-out;
}
/* 四条边的彩色流线光：只亮「碰到的那一条」（--edge-xxx 控制显隐） */
.card.bg-glow::before {
  content: ''; position: absolute; inset: -1px; pointer-events: none;
  z-index: 3; border-radius: inherit;
  opacity: var(--edge-proximity, 0);
  transition: opacity .18s ease-out;
  /* 极光多色：玫瑰红 → 紫 → 浅粉 */
  --glow-a: hsl(calc(340 + var(--hue-shift, 0)) 100% 62%);  /* 玫瑰红 */
  --glow-b: hsl(calc(285 + var(--hue-shift, 0)) 100% 68%);  /* 紫 */
  --glow-c: hsl(calc(330 + var(--hue-shift, 0)) 100% 80%);  /* 浅粉 */
}
/* 上边流线 */
.card.bg-glow:hover::before {
  background:
    /* 上 */
    linear-gradient(90deg,
      transparent calc(var(--edge-pos, 50%) - 38%),
      var(--glow-b) calc(var(--edge-pos, 50%) - 14%),
      var(--glow-a) var(--edge-pos, 50%),
      var(--glow-c) calc(var(--edge-pos, 50%) + 14%),
      transparent calc(var(--edge-pos, 50%) + 38%)) top / 100% 4px no-repeat,
    /* 下 */
    linear-gradient(90deg,
      transparent calc(var(--edge-pos, 50%) - 38%),
      var(--glow-b) calc(var(--edge-pos, 50%) - 14%),
      var(--glow-a) var(--edge-pos, 50%),
      var(--glow-c) calc(var(--edge-pos, 50%) + 14%),
      transparent calc(var(--edge-pos, 50%) + 38%)) bottom / 100% 4px no-repeat,
    /* 左 */
    linear-gradient(180deg,
      transparent calc(var(--edge-pos, 50%) - 38%),
      var(--glow-b) calc(var(--edge-pos, 50%) - 14%),
      var(--glow-a) var(--edge-pos, 50%),
      var(--glow-c) calc(var(--edge-pos, 50%) + 14%),
      transparent calc(var(--edge-pos, 50%) + 38%)) left / 4px 100% no-repeat,
    /* 右 */
    linear-gradient(180deg,
      transparent calc(var(--edge-pos, 50%) - 38%),
      var(--glow-b) calc(var(--edge-pos, 50%) - 14%),
      var(--glow-a) var(--edge-pos, 50%),
      var(--glow-c) calc(var(--edge-pos, 50%) + 14%),
      transparent calc(var(--edge-pos, 50%) + 38%)) right / 4px 100% no-repeat;
  filter:
    brightness(calc(1 + var(--edge-proximity, 0) * 1.6))
    saturate(1.4)
    drop-shadow(0 0 calc(var(--edge-proximity, 0) * 10px) var(--glow-a))
    drop-shadow(0 0 calc(var(--edge-proximity, 0) * 22px) var(--glow-b));
}
/* 未 hover 时清零，保证只有碰到的边亮 */
.card.bg-glow:not(:hover)::before { opacity: 0; }
.card.bg-glow:hover { transform: translateY(-6px); }
.card-img { aspect-ratio: 1/1; background: var(--line); overflow: hidden; }
.card-img img { width: 100%; height: 100%; object-fit: cover; transition: 0.4s; }
.card:hover .card-img img { transform: scale(1.06); }
.card-body { padding: 14px 16px 18px; flex: 1; display: flex; flex-direction: column; }
.card-title { font-size: 15px; font-weight: 600; margin-bottom: 6px; }
.card-desc { font-size: 13px; color: var(--text-light); margin-bottom: 10px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* ---------- 工具条 / 筛选 ---------- */
.toolbar { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin: 24px 0; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  padding: 6px 14px; border-radius: 20px; background: transparent;
  border: none; font-size: 12px; color: var(--text-light); cursor: pointer;
  font-family: inherit; letter-spacing: .5px; opacity: .8;
}
.chip:hover, .chip.active { color: var(--accent); opacity: 1; }
.search-box { display: flex; gap: 8px; margin-left: auto; }
.search-box input {
  padding: 8px 16px; border-radius: 20px; border: 1px solid var(--line);
  font-size: 14px; outline: none; font-family: inherit; background: #fff;
}
.search-box input:focus { border-color: var(--accent); }

/* ---------- 商品详情 ---------- */
.detail { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; margin: 32px 0;
  background: rgba(255,255,255,0.85); padding: 26px; border-radius: var(--radius); }
.detail-img { border-radius: var(--radius); overflow: hidden; background: var(--line); }
.detail-img img { width: 100%; }
.detail-info h1 { font-size: 26px; margin-bottom: 12px; }
.price-like { display: flex; gap: 20px; align-items: center; color: var(--text-light); font-size: 14px; margin-bottom: 18px; }
.meta-list { list-style: none; margin: 18px 0; font-size: 14px; }
.meta-list li { padding: 8px 0; border-bottom: 1px dashed var(--line); }
.meta-list li b { color: var(--text); margin-right: 8px; font-weight: 600; }
.action-row { display: flex; gap: 12px; margin-top: 22px; flex-wrap: wrap; }
.like-btn.active, .fav-btn.active { background: var(--accent-soft); color: #fff; }

/* ---------- 评论 ---------- */
.comment-section { margin: 40px 0; background: rgba(255,255,255,0.85);
  padding: 26px; border-radius: var(--radius); }
.comment-form textarea {
  width: 100%; min-height: 90px; padding: 14px; border-radius: 14px;
  border: 1px solid var(--line); font-family: inherit; font-size: 14px;
  resize: vertical; outline: none; background: #fff;
}
.comment-form textarea:focus { border-color: var(--accent); }
.comment-list { margin-top: 22px; }
.comment-item { background: var(--white); border-radius: 14px; padding: 16px 18px; margin-bottom: 14px; box-shadow: var(--shadow); border: 1px solid var(--line); }
.comment-head { display: flex; justify-content: space-between; font-size: 13px; color: var(--text-light); margin-bottom: 8px; }
.comment-head b { color: var(--text); }
.comment-content { font-size: 14px; }
.reply-list { margin-top: 12px; padding-left: 16px; border-left: 2px solid var(--line); }
.reply-item { padding: 8px 0; font-size: 13px; }
.reply-item b { color: var(--text); }
.empty { text-align: center; color: var(--text-light); padding: 40px 0; }

/* ---------- 表单卡片 ---------- */
.form-card {
  max-width: 420px; margin: 48px auto; background: var(--white);
  border-radius: var(--radius); box-shadow: var(--shadow); padding: 36px 32px;
  border: 1px solid var(--line);
}
.form-card h2 { text-align: center; color: var(--text); margin-bottom: 26px; font-size: 22px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 13px; margin-bottom: 6px; color: var(--text-light); }
.field input, .field textarea {
  width: 100%; padding: 11px 14px; border-radius: 12px;
  border: 1px solid var(--line); font-size: 14px; font-family: inherit; outline: none;
  background: var(--cream);
}
.field input:focus, .field textarea:focus { border-color: var(--accent); background: #fff; }
.alert { padding: 11px 15px; border-radius: 12px; font-size: 13px; margin-bottom: 16px; }
.alert-error { background: #FDECEC; color: #B23B3B; }
.alert-ok { background: #EBF5EE; color: #3E8E5A; }
.form-foot { text-align: center; font-size: 13px; color: var(--text-light); margin-top: 18px; }

/* ---------- 页脚 ---------- */
.site-footer {
  margin-top: 64px; padding: 34px 0; text-align: center;
  background: rgba(255,255,255,0.85); color: var(--text-light); font-size: 13px;
  border-top: 1px solid var(--line);
}
.site-footer .brand { font-size: 17px; color: var(--text); }

/* ---------- 通用 ---------- */
.page-title { text-align: center; font-size: 26px; color: var(--text); margin: 36px 0 8px; letter-spacing: 1px;
  text-shadow: 0 1px 10px rgba(255,255,255,0.9); }
.page-sub { text-align: center; color: var(--text-light); font-size: 14px; margin-bottom: 28px; }
.prose { max-width: 760px; margin: 0 auto; font-size: 15px; background: rgba(255,255,255,0.85);
  padding: 30px; border-radius: var(--radius); }
.prose p { margin-bottom: 16px; }
.prose h3 { color: var(--text); margin: 24px 0 10px; }

/* ---------- 页面平滑转场（淡入淡出·消除闪烁） ---------- */
/* 进入：整页淡入 */
@keyframes pageFadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: none; }
}
main.page-enter { animation: pageFadeIn 0.26s ease both; }

/* 离开：整页淡出 */
body { transition: opacity 0.26s ease; }
body.page-leaving { opacity: 0; pointer-events: none; }

@media (prefers-reduced-motion: reduce) {
  main.page-enter { animation: none; }
  body { transition: none; }
}

/* ---------- 提交成功提示条（toast） ---------- */
.toast-wrap {
  position: fixed;
  left: 50%;
  bottom: 32px;
  transform: translateX(-50%) translateY(20px);
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: center;
  pointer-events: none;
}
.toast {
  max-width: 90vw;
  padding: 12px 22px;
  border-radius: 999px;
  font-size: 14px;
  color: #fff;
  background: #3E8E5A;
  box-shadow: 0 8px 24px rgba(0,0,0,0.16);
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  pointer-events: auto;
}
.toast.show { opacity: 1; transform: none; }
.toast.toast-error { background: #C0576E; }
.toast.toast-info { background: #5A6B8C; }

/* ---------- 响应式 ---------- */
/* 平板 / 中等屏幕 */
@media (max-width: 900px) {
  .grid { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 18px; }
  .detail { gap: 28px; }
}

/* 手机 */
@media (max-width: 768px) {
  .menu-toggle { display: block; }
  .nav-links {
    position: absolute; top: 64px; left: 0; right: 0;
    background: var(--white); flex-direction: column; gap: 0;
    box-shadow: var(--shadow); display: none; padding: 8px 0;
    max-height: calc(100vh - 64px); overflow-y: auto;  /* 菜单过长时可滚动 */
    border-bottom: 1px solid var(--line);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 22px; width: 100%; font-size: 15px; }
  .nav-user { flex-direction: column; align-items: flex-start; gap: 8px; padding: 12px 22px; width: 100%; }
  .nav-user a { width: 100%; padding: 10px 0; }

  .container { padding: 0 14px; }

  .hero { padding: 44px 16px; margin: 18px 0; }
  .hero h1 { font-size: 25px; letter-spacing: 1px; }
  .hero p { font-size: 15px; }

  .section-title { font-size: 19px; margin: 34px 0 20px; }

  /* 商品网格：手机两列更紧凑 */
  .grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .card-body { padding: 12px 12px 14px; }
  .card-title { font-size: 14px; }
  .card-desc { font-size: 12px; -webkit-line-clamp: 2; }

  .toolbar { gap: 8px; margin: 18px 0; }
  .chips { gap: 6px; }
  .chip { padding: 6px 13px; font-size: 12px; }
  .search-box { margin-left: 0; width: 100%; }
  .search-box input { flex: 1; }

  /* 详情页单列 */
  .detail { grid-template-columns: 1fr; gap: 20px; padding: 16px; margin: 18px 0; }
  .detail-info h1 { font-size: 22px; }
  .price-like { flex-wrap: wrap; gap: 12px; font-size: 13px; }
  .action-row { gap: 10px; }
  .action-row .btn { flex: 1; min-width: 120px; text-align: center; }

  /* 评论区 */
  .comment-section { margin: 24px 0; padding: 16px; }
  .comment-item { padding: 14px; }
  .comment-head { flex-wrap: wrap; gap: 4px; }
  .reply-list { padding-left: 12px; }

  /* 表单卡片 */
  .form-card { margin: 24px 14px; padding: 26px 20px; }
  .form-card h2 { font-size: 20px; }

  .prose { padding: 20px 16px; font-size: 14px; }
  .page-title { font-size: 22px; margin: 26px 0 8px; }

  .site-footer { margin-top: 40px; padding: 26px 0; }

  /* 触控友好：按钮加大点击区 */
  .btn { padding: 11px 20px; }
  .btn-sm { padding: 8px 16px; }
}

/* 小屏手机 */
@media (max-width: 400px) {
  .grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .card-body { padding: 10px; }
  .card-title { font-size: 13px; }
  .hero h1 { font-size: 22px; }
  .brand { font-size: 18px; }
  .brand span { display: none; }  /* 小屏隐藏副标题，避免拥挤 */
  .detail-info h1 { font-size: 20px; }
  .action-row .btn { min-width: 100%; }
  .form-card { margin: 18px 10px; padding: 22px 16px; }
}

/* 横屏矮屏（手机横放）：适当压缩纵向留白 */
@media (max-height: 480px) and (orientation: landscape) {
  .hero { padding: 28px 16px; }
  .site-header .nav { height: 56px; }
  .nav-links { top: 56px; }
}

/* ==================== 手机端后台优化（移动管理友好） ==================== */
/* 后台顶部：导航按钮变大、易点按、横向可滑 */
.admin-nav {
  display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 14px;
}

@media (max-width: 768px) {
  /* 后台页整体留白收窄，屏幕利用率更高 */
  .page-title { font-size: 20px; }
  .page-sub { font-size: 13px; }

  /* 后台导航：一行横向可滑，按钮大而好点 */
  .admin-nav {
    flex-wrap: nowrap; overflow-x: auto; -webkit-overflow-scrolling: touch;
    padding-bottom: 6px; gap: 8px;
    scrollbar-width: none;
  }
  .admin-nav::-webkit-scrollbar { display: none; }
  .admin-nav .btn { white-space: nowrap; flex: 0 0 auto; padding: 10px 15px; font-size: 14px; }
  .admin-nav form { margin-left: 0 !important; flex: 0 0 auto; }

  /* 后台表单：输入框加大，触控更好点，字体≥16px 防 iOS 自动缩放 */
  .form-card { max-width: 100% !important; margin: 14px 0 !important; padding: 20px 16px !important; }
  .field input, .field textarea, .field select { font-size: 16px !important; padding: 12px 14px !important; }
  .field label { font-size: 14px; }
  .btn-block { padding: 14px 18px; font-size: 16px; }
  .btn-sm { padding: 9px 15px; font-size: 13.5px; }

  /* 商品/评论卡片：单列铺满，按钮加大并自动换行 */
  .comment-item { padding: 14px 14px !important; }
  .comment-head { flex-direction: column; gap: 4px; align-items: flex-start; }

  /* 表格（用户管理）：可横向滑动，首列收窄 */
  .admin-table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; border-radius: 14px; }
  .admin-table { min-width: 640px; }
  .admin-table th, .admin-table td { padding: 10px 12px !important; font-size: 13.5px; white-space: nowrap; }

  /* 后台搜索栏：输入框铺满一行 */
  .admin-search { flex-direction: column; align-items: stretch !important; }
  .admin-search input, .admin-search select, .admin-search .btn { width: 100%; }
}

/* 小屏手机后台 */
@media (max-width: 400px) {
  .admin-nav .btn { padding: 9px 12px; font-size: 13px; }
  .page-title { font-size: 18px; }
  .field input, .field textarea, .field select { padding: 11px 12px !important; }
}

/* 分享二维码小工具 */
.qr-share { max-width: 720px; margin: 32px auto; text-align: center; }
.qr-card { display: inline-block; padding: 18px 22px; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.qr-title { font-size: 15px; color: var(--text); margin-bottom: 10px; font-weight: 600; }
.qr-canvas { display: block; margin: 0 auto; border-radius: 8px; }
.qr-url { margin-top: 10px; font-size: 12px; color: var(--text-light); word-break: break-all; }
.qr-hint { margin-top: 12px; font-size: 13px; color: var(--text-light); }
.qr-error { color: #c0392b; font-size: 13px; }


/* ====== 后台专用：纯白背景 + 隐藏背景视频 ====== */
.admin-body,
.admin-body body {
  background: #ffffff !important;
}
.admin-body .bg-video-wrap {
  display: none !important;
}
.admin-body .bg-video-wrap video {
  display: none !important;
}
.admin-body .bg-video-wrap::after {
  display: none !important;
}
/* 后台页眉透明化（原 rgba 白底在纯白下会显得有边） */
.admin-body .site-header {
  background: #ffffff !important;
}


/* ====== 商品详情：媒体区美化 ====== */
.detail-img .media-frame {
  width: 100%;
  aspect-ratio: 1 / 1;
  background: linear-gradient(180deg, #fff 0%, #fdf3f7 100%);
  border-radius: 16px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
}
.detail-img .media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: opacity 0.25s ease;
}

.detail-img .thumb-strip {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 14px;
}
.detail-img .thumb {
  width: 68px;
  height: 68px;
  object-fit: cover;
  border-radius: 10px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform 0.18s ease, border-color 0.18s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}
.detail-img .thumb:hover {
  transform: translateY(-2px);
}
.detail-img .thumb.active {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.detail-img .video-block {
  margin-top: 22px;
  padding: 16px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.05);
}
.detail-img .video-label {
  font-size: 13px;
  color: var(--text-light);
  margin-bottom: 10px;
  letter-spacing: 0.5px;
  font-weight: 600;
}
.detail-img .video-block video {
  width: 100%;
  border-radius: 12px;
  display: block;
  background: #000;
}

@media (max-width: 768px) {
  .detail-img .thumb {
    width: 56px;
    height: 56px;
  }
}


/* ====== 商品详情：外链视频嵌入 / 兜底 ====== */
.detail-img .video-embed {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 12px;
  overflow: hidden;
  background: #000;
}
.detail-img .video-embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}
.detail-img .video-fallback {
  text-align: center;
  padding: 24px 18px;
  border: 1px dashed var(--line);
  border-radius: 12px;
  background: var(--cream);
}
.detail-img .video-fallback p {
  color: var(--text-light);
  font-size: 14px;
  margin-bottom: 12px;
}


/* ====== 商品详情：抖音/快手等短视频跳转卡片 ====== */
.detail-img .video-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  border-radius: 14px;
  background: linear-gradient(135deg, #fff 0%, #fdf3f7 100%);
  border: 1px solid var(--line);
  text-decoration: none;
  color: var(--text);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.05);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.detail-img .video-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.09);
}
.detail-img .video-card-play {
  flex: 0 0 auto;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-soft) 100%);
  color: #fff;
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
}
.detail-img .video-card-info {
  flex: 1 1 auto;
  min-width: 0;
}
.detail-img .video-card-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 3px;
}
.detail-img .video-card-sub {
  font-size: 12px;
  color: var(--text-light);
}
.detail-img .video-card-arrow {
  flex: 0 0 auto;
  font-size: 26px;
  color: var(--text-light);
  line-height: 1;
}