/**
 * style.css —— 全站视觉规范
 * 设计语言：苹果 iOS 圆润极简 —— 大圆角、磨砂玻璃、柔和阴影、
 * 低饱和配色、弹性过渡动画、大量留白。
 */

/* ================= 设计变量 ================= */
:root {
  --bg: #f5f5f7;                 /* 苹果官网底色 */
  --card: rgba(255, 255, 255, .82);
  --card-solid: #ffffff;
  --ink: #1d1d1f;                /* 主文字 */
  --ink-2: #6e6e73;              /* 次级文字 */
  --ink-3: #a1a1a6;              /* 弱化文字 */
  --blue: #0071e3;               /* 苹果蓝 */
  --blue-soft: #e8f2fe;
  --orange: #ff6a1f;             /* 评分橙（美团式） */
  --line: rgba(0, 0, 0, .07);
  --radius-xl: 28px;
  --radius-l: 22px;
  --radius-m: 16px;
  --radius-s: 12px;
  --shadow-1: 0 1px 2px rgba(0, 0, 0, .04), 0 4px 16px rgba(0, 0, 0, .05);
  --shadow-2: 0 4px 12px rgba(0, 0, 0, .06), 0 16px 40px rgba(0, 0, 0, .10);
  --glass: rgba(255, 255, 255, .66);
  --glass-blur: blur(24px) saturate(1.6);
  --spring: cubic-bezier(.32, .72, 0, 1);   /* 苹果式过渡曲线 */
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text",
          "PingFang SC", "Helvetica Neue", "Microsoft YaHei", sans-serif;
}

/* ================= 基础重置 ================= */
* { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; border: none; cursor: pointer; background: none; color: inherit; }
input, textarea { font-family: inherit; outline: none; }
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-thumb { background: rgba(0,0,0,.15); border-radius: 8px; }
::-webkit-scrollbar-track { background: transparent; }

/* 页面进场淡入 */
.page-in { animation: pageIn .6s var(--spring) both; }
@keyframes pageIn { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }

/* ================= 顶部磨砂导航 ================= */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 900;
  height: 56px;
  display: flex; align-items: center;
  padding: 0 max(20px, calc(50% - 560px));
  background: var(--glass);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid rgba(255, 255, 255, .5);
  box-shadow: 0 1px 0 var(--line);
}
.nav-brand { display: flex; align-items: center; gap: 9px; font-weight: 700; font-size: 17px; letter-spacing: .2px; }
.nav-brand .logo {
  width: 30px; height: 30px; border-radius: 9px;
  background: linear-gradient(135deg, #0a84ff, #5e5ce6);
  display: grid; place-items: center; color: #fff; font-size: 15px;
  box-shadow: 0 2px 8px rgba(10, 132, 255, .35);
}
.nav-links { margin-left: auto; display: flex; gap: 6px; }
.nav-links a {
  padding: 7px 14px; border-radius: 980px; font-size: 14px; color: var(--ink-2);
  transition: all .35s var(--spring);
}
.nav-links a:hover { background: rgba(0, 0, 0, .05); color: var(--ink); }
.nav-links a.active { background: var(--ink); color: #fff; }

/* ================= 首页 Hero ================= */
.hero {
  position: relative;
  padding: 132px 20px 64px;
  text-align: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; z-index: -2;
  background-size: cover; background-position: center;
  transform: scale(1.06);
}
.hero-mask {
  position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(180deg, rgba(20,24,32,.25) 0%, rgba(20,24,32,.42) 55%, var(--bg) 100%);
}
.hero h1 {
  color: #fff; font-size: clamp(30px, 5vw, 52px); font-weight: 800;
  letter-spacing: 1px; text-shadow: 0 2px 24px rgba(0,0,0,.35);
}
.hero p {
  color: rgba(255,255,255,.92); font-size: clamp(14px, 2vw, 18px);
  margin-top: 12px; text-shadow: 0 1px 12px rgba(0,0,0,.3);
}

/* 搜索框 */
.search-wrap { max-width: 640px; margin: 34px auto 0; position: relative; }
.search-box {
  display: flex; align-items: center; gap: 10px;
  background: var(--glass);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid rgba(255, 255, 255, .65);
  border-radius: 980px;
  padding: 8px 8px 8px 22px;
  box-shadow: var(--shadow-2);
  transition: transform .4s var(--spring), box-shadow .4s var(--spring);
}
.search-box:focus-within { transform: scale(1.015); box-shadow: 0 12px 48px rgba(0, 0, 0, .22); }
.search-box svg { flex: none; opacity: .5; }
.search-box input {
  flex: 1; border: none; background: none; font-size: 16px; color: var(--ink); min-width: 0;
}
.search-box input::placeholder { color: var(--ink-3); }
.btn-search {
  flex: none; padding: 11px 26px; border-radius: 980px;
  background: var(--blue); color: #fff; font-size: 15px; font-weight: 600;
  transition: all .35s var(--spring);
}
.btn-search:hover { filter: brightness(1.12); transform: scale(1.04); }
.btn-search:active { transform: scale(.97); }

/* 搜索联想 */
.suggest {
  position: absolute; top: calc(100% + 10px); left: 0; right: 0;
  background: var(--glass);
  backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid rgba(255,255,255,.6);
  border-radius: var(--radius-l);
  box-shadow: var(--shadow-2);
  padding: 8px; text-align: left; overflow: hidden;
  animation: popIn .3s var(--spring) both;
}
.suggest-item {
  display: flex; align-items: center; gap: 12px;
  padding: 11px 14px; border-radius: var(--radius-s); cursor: pointer;
  transition: background .25s var(--spring);
}
.suggest-item:hover { background: rgba(0, 0, 0, .05); }
.suggest-item .tag {
  flex: none; font-size: 11px; padding: 3px 9px; border-radius: 980px;
  background: var(--blue-soft); color: var(--blue); font-weight: 600;
}
@keyframes popIn { from { opacity: 0; transform: translateY(-8px) scale(.98); } to { opacity: 1; transform: none; } }

/* ================= 通用区块 ================= */
.section { max-width: 1180px; margin: 0 auto; padding: 26px 20px 44px; }
.section-head { display: flex; align-items: baseline; gap: 14px; margin-bottom: 22px; }
.section-head h2 { font-size: 26px; font-weight: 700; letter-spacing: .3px; }
.section-head .sub { color: var(--ink-3); font-size: 14px; }

/* ================= 城市卡片（大疆商城式：上图下文） ================= */
.city-grid {
  display: grid; gap: 26px;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}
.city-card {
  background: var(--card-solid);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-1);
  cursor: pointer;
  transition: transform .5s var(--spring), box-shadow .5s var(--spring);
}
.city-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-2); }
.city-card:active { transform: translateY(-4px) scale(.99); }
.city-cover { position: relative; aspect-ratio: 16 / 10; overflow: hidden; background: #e8e8ed; }
.city-cover img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 1.2s var(--spring), opacity .8s ease;
  opacity: 0;
}
.city-cover img.loaded { opacity: 1; }
.city-card:hover .city-cover img { transform: scale(1.06); }
.city-cover .place-tag {
  position: absolute; left: 14px; top: 14px;
  padding: 5px 13px; border-radius: 980px; font-size: 12px; font-weight: 600; color: #fff;
  background: rgba(0, 0, 0, .32);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
}
.city-body { padding: 20px 22px 24px; }
.city-body h3 { font-size: 20px; font-weight: 700; }
.city-body .tagline { color: var(--blue); font-size: 13px; margin-top: 3px; font-weight: 500; }
.city-body .desc {
  margin-top: 10px; font-size: 14px; color: var(--ink-2);
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.city-meta { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px; }
.city-meta span {
  font-size: 12px; color: var(--ink-2); padding: 4px 11px;
  background: #f2f2f5; border-radius: 980px;
}
.city-go {
  margin-top: 16px; font-size: 14px; font-weight: 600; color: var(--blue);
  display: inline-flex; align-items: center; gap: 6px;
}
.city-go .arrow { transition: transform .35s var(--spring); }
.city-card:hover .city-go .arrow { transform: translateX(4px); }

/* ================= 目的地详情页 ================= */
.dest-hero { position: relative; height: min(62vh, 520px); overflow: hidden; }
.dest-hero img { width: 100%; height: 100%; object-fit: cover; }
.dest-hero .veil {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(15,18,25,.18), rgba(15,18,25,.05) 45%, var(--bg) 100%);
}
.dest-title-wrap {
  position: absolute; left: 0; right: 0; bottom: 34px; text-align: center; color: #fff;
  text-shadow: 0 2px 20px rgba(0,0,0,.4);
}
.dest-title-wrap h1 { font-size: clamp(34px, 6vw, 54px); font-weight: 800; letter-spacing: 2px; }
.dest-title-wrap p { font-size: clamp(14px, 2vw, 18px); opacity: .94; margin-top: 4px; }

.info-grid { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.info-card {
  background: var(--card-solid); border-radius: var(--radius-l);
  padding: 26px; box-shadow: var(--shadow-1);
  transition: transform .45s var(--spring), box-shadow .45s var(--spring);
}
.info-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-2); }
.info-card .ic-head { display: flex; align-items: center; gap: 11px; margin-bottom: 14px; }
.info-card .ic-icon {
  width: 38px; height: 38px; border-radius: 12px; display: grid; place-items: center;
  font-size: 18px; background: var(--blue-soft);
}
.info-card h3 { font-size: 17px; font-weight: 700; }
.info-card p { font-size: 14.5px; color: var(--ink-2); }
.info-card .intro-full { font-size: 15.5px; color: var(--ink); }

.chip-row { display: flex; flex-wrap: wrap; gap: 10px; }
.chip-row .chip {
  padding: 8px 16px; border-radius: 980px; font-size: 13.5px;
  background: #f2f2f5; color: var(--ink);
  transition: all .35s var(--spring);
}
.chip-row .chip:hover { background: var(--blue-soft); color: var(--blue); transform: translateY(-2px); }
.highlight-list { list-style: none; }
.highlight-list li {
  padding: 9px 0; font-size: 14.5px; color: var(--ink);
  display: flex; align-items: center; gap: 10px;
  border-bottom: 1px dashed var(--line);
}
.highlight-list li:last-child { border-bottom: none; }
.highlight-list li::before {
  content: ''; width: 7px; height: 7px; border-radius: 50%;
  background: linear-gradient(135deg, #0a84ff, #5e5ce6); flex: none;
}

/* 图片画廊 */
.gallery { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.gallery figure {
  border-radius: var(--radius-l); overflow: hidden; background: #e8e8ed;
  box-shadow: var(--shadow-1);
}
.gallery img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; transition: transform 1s var(--spring); }
.gallery figure:hover img { transform: scale(1.05); }
.gallery figcaption {
  padding: 11px 16px; font-size: 12.5px; color: var(--ink-2);
  background: var(--card-solid);
}

/* 快捷入口按钮组 */
.entry-row { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
.entry-btn {
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  padding: 26px 16px; border-radius: var(--radius-l);
  background: var(--card-solid); box-shadow: var(--shadow-1);
  font-size: 15px; font-weight: 600;
  transition: all .4s var(--spring);
}
.entry-btn:hover { transform: translateY(-5px); box-shadow: var(--shadow-2); }
.entry-btn .e-icon {
  width: 52px; height: 52px; border-radius: 17px; display: grid; place-items: center;
  font-size: 24px; color: #fff;
}

/* ================= 美团式列表页 ================= */
.list-toolbar {
  position: sticky; top: 56px; z-index: 800;
  background: var(--glass);
  backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--line);
  padding: 12px max(20px, calc(50% - 590px));
}
.toolbar-inner { max-width: 1140px; margin: 0 auto; display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.type-tabs { display: flex; gap: 6px; background: rgba(0,0,0,.05); padding: 4px; border-radius: 980px; }
.type-tabs button {
  padding: 7px 20px; border-radius: 980px; font-size: 14px; font-weight: 600; color: var(--ink-2);
  transition: all .35s var(--spring);
}
.type-tabs button.active { background: #fff; color: var(--ink); box-shadow: 0 2px 8px rgba(0,0,0,.08); }
.sort-group { display: flex; gap: 8px; margin-left: auto; }
.sort-group button {
  padding: 7px 15px; border-radius: 980px; font-size: 13px; color: var(--ink-2);
  border: 1px solid var(--line); background: var(--card-solid);
  transition: all .3s var(--spring);
}
.sort-group button.active { color: var(--blue); border-color: var(--blue); background: var(--blue-soft); }

.poi-list { max-width: 1140px; margin: 24px auto 60px; padding: 0 20px; display: grid; gap: 16px; }
.poi-card {
  display: flex; gap: 18px; padding: 18px;
  background: var(--card-solid); border-radius: var(--radius-l);
  box-shadow: var(--shadow-1); cursor: pointer;
  transition: transform .4s var(--spring), box-shadow .4s var(--spring);
  animation: pageIn .5s var(--spring) both;
}
.poi-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-2); }
.poi-thumb {
  flex: none; width: 96px; height: 96px; border-radius: var(--radius-m);
  background: linear-gradient(135deg, #eef1f6, #e2e6ee);
  display: grid; place-items: center; font-size: 34px;
}
.poi-main { flex: 1; min-width: 0; }
.poi-name-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.poi-name-row h3 { font-size: 17px; font-weight: 700; }
.stars { color: var(--orange); font-size: 13px; letter-spacing: 1px; }
.score-num { color: var(--orange); font-weight: 700; font-size: 14px; }
.score-none { color: var(--ink-3); font-size: 12px; }
.poi-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.poi-tags span { font-size: 11.5px; padding: 3px 10px; border-radius: 980px; background: #f2f2f5; color: var(--ink-2); }
.poi-addr { margin-top: 9px; font-size: 13px; color: var(--ink-2); display: flex; gap: 6px; align-items: baseline; }
.poi-side { flex: none; text-align: right; display: flex; flex-direction: column; justify-content: space-between; align-items: flex-end; }
.poi-price { font-size: 18px; font-weight: 800; color: var(--orange); }
.poi-price small { font-size: 12px; font-weight: 400; color: var(--ink-3); }
.poi-price .na { font-size: 13px; color: var(--ink-3); font-weight: 400; }
.poi-dist { font-size: 12.5px; color: var(--ink-3); }

/* 骨架屏 */
.skeleton { border-radius: var(--radius-l); background: var(--card-solid); padding: 18px; box-shadow: var(--shadow-1); }
.sk-line { height: 14px; border-radius: 7px; background: linear-gradient(90deg, #ececf0 25%, #f6f6f8 50%, #ececf0 75%); background-size: 200% 100%; animation: shimmer 1.4s infinite; margin-bottom: 10px; }
@keyframes shimmer { from { background-position: 200% 0; } to { background-position: -200% 0; } }

.empty-tip {
  text-align: center; padding: 70px 20px; color: var(--ink-3);
  background: var(--card-solid); border-radius: var(--radius-l); box-shadow: var(--shadow-1);
}
.empty-tip .big { font-size: 44px; margin-bottom: 12px; }
.empty-tip code { background: #f2f2f5; padding: 2px 8px; border-radius: 6px; font-size: 13px; }

/* ================= 商家详情页 ================= */
.shop-wrap { max-width: 1140px; margin: 88px auto 60px; padding: 0 20px; display: grid; gap: 22px; grid-template-columns: 1fr 400px; }
.shop-panel { background: var(--card-solid); border-radius: var(--radius-xl); padding: 30px; box-shadow: var(--shadow-1); }
.shop-panel h1 { font-size: 26px; font-weight: 800; }
.shop-row { display: flex; gap: 10px; align-items: baseline; margin-top: 14px; font-size: 14.5px; color: var(--ink-2); }
.shop-row .k { flex: none; width: 64px; color: var(--ink-3); font-size: 13px; }
.shop-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.btn-primary, .btn-ghost {
  padding: 12px 26px; border-radius: 980px; font-size: 14.5px; font-weight: 600;
  transition: all .35s var(--spring); display: inline-flex; align-items: center; gap: 8px;
}
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { filter: brightness(1.12); transform: translateY(-2px); }
.btn-ghost { background: #f2f2f5; color: var(--ink); }
.btn-ghost:hover { background: #e8e8ed; transform: translateY(-2px); }
.map-panel {
  border-radius: var(--radius-xl); overflow: hidden; box-shadow: var(--shadow-1);
  background: var(--card-solid); display: flex; flex-direction: column; min-height: 480px;
}
.map-box { flex: 1; min-height: 340px; background: #eef0f4; }
.map-foot { padding: 14px 18px; font-size: 12.5px; color: var(--ink-3); border-top: 1px solid var(--line); }

/* ================= AI 助手悬浮组件 ================= */
.ai-fab {
  position: fixed; right: 22px; bottom: 26px; z-index: 950;
  display: flex; align-items: center; gap: 9px;
  padding: 14px 22px; border-radius: 980px;
  background: rgba(28, 28, 30, .78);
  backdrop-filter: blur(20px) saturate(1.5); -webkit-backdrop-filter: blur(20px) saturate(1.5);
  color: #fff; font-size: 15px; font-weight: 600;
  box-shadow: 0 6px 20px rgba(0, 0, 0, .28);
  transition: all .4s var(--spring);
}
.ai-fab:hover { transform: translateY(-4px) scale(1.04); background: rgba(28, 28, 30, .92); }
.ai-fab .dot { width: 9px; height: 9px; border-radius: 50%; background: #30d158; box-shadow: 0 0 10px #30d158; }
.ai-fab.hidden { transform: translateY(120px); opacity: 0; pointer-events: none; }

.ai-panel {
  position: fixed; right: 22px; bottom: 96px; z-index: 960;
  width: min(392px, calc(100vw - 24px)); height: min(560px, calc(100vh - 130px));
  border-radius: 26px; overflow: hidden;
  display: flex; flex-direction: column;
  background: rgba(250, 250, 252, .86);
  backdrop-filter: blur(30px) saturate(1.6); -webkit-backdrop-filter: blur(30px) saturate(1.6);
  border: 1px solid rgba(255, 255, 255, .7);
  box-shadow: 0 20px 60px rgba(0, 0, 0, .28);
  transform-origin: bottom right;
  animation: panelIn .45s var(--spring) both;
}
.ai-panel.minimized { height: 62px; }
.ai-panel.minimized .ai-body, .ai-panel.minimized .ai-input-wrap { display: none; }
.ai-panel.closed { display: none; }
@keyframes panelIn { from { opacity: 0; transform: translateY(24px) scale(.92); } to { opacity: 1; transform: none; } }

.ai-head {
  flex: none; display: flex; align-items: center; gap: 11px;
  padding: 15px 18px; cursor: move; user-select: none;
  background: rgba(255, 255, 255, .55);
  border-bottom: 1px solid rgba(0, 0, 0, .06);
}
.ai-head .ai-avatar {
  width: 34px; height: 34px; border-radius: 12px; flex: none;
  background: linear-gradient(135deg, #0a84ff, #bf5af2);
  display: grid; place-items: center; color: #fff; font-size: 17px;
}
.ai-head .t { font-size: 15px; font-weight: 700; }
.ai-head .s { font-size: 11.5px; color: #30d158; display: flex; align-items: center; gap: 5px; }
.ai-head .s::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: #30d158; }
.ai-head-btns { margin-left: auto; display: flex; gap: 8px; }
.ai-head-btns button {
  width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center;
  background: rgba(0, 0, 0, .06); color: var(--ink-2); font-size: 13px;
  transition: all .3s var(--spring);
}
.ai-head-btns button:hover { background: rgba(0, 0, 0, .12); transform: scale(1.08); }

.ai-body { flex: 1; overflow-y: auto; padding: 18px 16px; display: flex; flex-direction: column; gap: 14px; }
.msg { display: flex; gap: 9px; max-width: 92%; animation: msgIn .4s var(--spring) both; }
@keyframes msgIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
.msg.user { align-self: flex-end; flex-direction: row-reverse; }
.msg .bubble {
  padding: 11px 15px; border-radius: 20px; font-size: 14px; line-height: 1.65;
  white-space: pre-wrap; word-break: break-word;
}
.msg.bot .bubble { background: #fff; border-top-left-radius: 6px; box-shadow: 0 1px 4px rgba(0,0,0,.06); }
.msg.user .bubble { background: var(--blue); color: #fff; border-top-right-radius: 6px; }
.msg .bubble strong { font-weight: 700; }
.typing { display: inline-flex; gap: 4px; padding: 4px 2px; }
.typing i {
  width: 7px; height: 7px; border-radius: 50%; background: var(--ink-3);
  animation: blink 1.2s infinite;
}
.typing i:nth-child(2) { animation-delay: .2s; }
.typing i:nth-child(3) { animation-delay: .4s; }
@keyframes blink { 0%, 60%, 100% { opacity: .25; transform: translateY(0); } 30% { opacity: 1; transform: translateY(-3px); } }

.ai-chips { flex: none; display: flex; gap: 8px; padding: 10px 14px 0; overflow-x: auto; scrollbar-width: none; }
.ai-chips::-webkit-scrollbar { display: none; }
.ai-chips button {
  flex: none; padding: 7px 14px; border-radius: 980px; font-size: 12.5px;
  background: var(--blue-soft); color: var(--blue); font-weight: 600;
  transition: all .3s var(--spring);
}
.ai-chips button:hover { transform: translateY(-2px); filter: brightness(.97); }

.ai-input-wrap { flex: none; padding: 12px 14px 14px; }
.ai-input-box {
  display: flex; align-items: flex-end; gap: 8px;
  background: #fff; border-radius: 22px; padding: 7px 7px 7px 16px;
  box-shadow: 0 1px 6px rgba(0,0,0,.08); border: 1px solid var(--line);
  transition: box-shadow .3s var(--spring);
}
.ai-input-box:focus-within { box-shadow: 0 2px 14px rgba(0, 113, 227, .18); }
.ai-input-box textarea {
  flex: 1; border: none; resize: none; font-size: 14px; line-height: 1.5;
  max-height: 84px; background: none; color: var(--ink);
}
.ai-send {
  flex: none; width: 36px; height: 36px; border-radius: 50%;
  background: var(--blue); color: #fff; display: grid; place-items: center; font-size: 15px;
  transition: all .3s var(--spring);
}
.ai-send:hover { transform: scale(1.1); }
.ai-send:disabled { background: #c7c7cc; cursor: not-allowed; transform: none; }

/* ================= 页脚 ================= */
.footer {
  margin-top: 40px; padding: 34px 20px 44px; text-align: center;
  color: var(--ink-3); font-size: 13px;
  border-top: 1px solid var(--line);
  background: rgba(255,255,255,.5);
}
.footer .f-links { display: flex; justify-content: center; gap: 18px; margin-bottom: 12px; }
.footer a:hover { color: var(--ink); }

/* ================= Toast ================= */
.toast {
  position: fixed; left: 50%; top: 76px; z-index: 1200;
  transform: translateX(-50%) translateY(-16px);
  padding: 12px 22px; border-radius: 980px; font-size: 14px; color: #fff;
  background: rgba(28, 28, 30, .85);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-2); opacity: 0; pointer-events: none;
  transition: all .45s var(--spring);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ================= 响应式 ================= */
@media (max-width: 900px) {
  .shop-wrap { grid-template-columns: 1fr; }
  .map-panel { min-height: 400px; }
}
@media (max-width: 640px) {
  body { font-size: 15px; }
  .nav { padding: 0 16px; }
  .nav-links a { padding: 7px 10px; font-size: 13px; }
  .hero { padding: 108px 16px 48px; }
  .section { padding: 20px 16px 36px; }
  .section-head h2 { font-size: 21px; }
  .city-grid { gap: 18px; }
  .poi-card { flex-direction: column; }
  .poi-thumb { width: 100%; height: 60px; border-radius: var(--radius-s); font-size: 26px; }
  .poi-side { flex-direction: row; width: 100%; align-items: center; }
  .sort-group { margin-left: 0; width: 100%; overflow-x: auto; }
  .shop-wrap { margin-top: 76px; }
  .shop-panel { padding: 22px 18px; }
  .ai-fab { right: 14px; bottom: 18px; padding: 12px 18px; font-size: 14px; }
  .ai-panel { right: 12px; bottom: 82px; }
  .az-bar { display: none; }
}

/* ================= 内页通用头部 ================= */
.page-hero {
  padding: 104px 20px 30px;
  text-align: center;
}
.page-hero h1 { font-size: clamp(26px, 4vw, 40px); font-weight: 800; letter-spacing: 1px; }
.page-hero > p { color: var(--ink-2); font-size: 14px; margin-top: 8px; }
.breadcrumb {
  display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--ink-3);
}
.breadcrumb a { color: var(--blue); }
.breadcrumb a:hover { text-decoration: underline; }

/* ================= 城市大全 ================= */
.city-search { max-width: 520px; margin: 22px auto 0; }
.city-search input {
  width: 100%; padding: 13px 22px; font-size: 15px;
  border: 1px solid var(--line); border-radius: 980px;
  background: var(--card-solid); box-shadow: var(--shadow-1);
  transition: box-shadow .35s var(--spring), transform .35s var(--spring);
}
.city-search input:focus { box-shadow: 0 2px 16px rgba(0, 113, 227, .16); transform: scale(1.01); }

.prov-chips {
  max-width: 900px; margin: 18px auto 0;
  display: flex; flex-wrap: wrap; gap: 8px; justify-content: center;
}
.prov-chip {
  padding: 7px 15px; border-radius: 980px; font-size: 13px; color: var(--ink-2);
  background: var(--card-solid); border: 1px solid var(--line);
  transition: all .3s var(--spring);
}
.prov-chip:hover { transform: translateY(-2px); color: var(--ink); }
.prov-chip.active { background: var(--ink); color: #fff; border-color: var(--ink); }

.az-bar {
  position: fixed; right: 10px; top: 50%; transform: translateY(-50%);
  z-index: 700; display: flex; flex-direction: column; gap: 2px;
  padding: 8px 4px; border-radius: 980px;
  background: var(--glass);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-1);
}
.az-bar span {
  width: 20px; height: 20px; border-radius: 50%;
  display: grid; place-items: center;
  font-size: 10.5px; font-weight: 700; color: var(--blue);
  cursor: pointer; transition: all .25s var(--spring);
}
.az-bar span:hover { background: var(--blue); color: #fff; transform: scale(1.2); }

.letter-group { margin-bottom: 30px; scroll-margin-top: 80px; }
.letter-head {
  font-size: 15px; font-weight: 800; color: var(--ink-2);
  padding: 6px 4px 12px; letter-spacing: 2px;
}
.city-chip-grid {
  display: grid; gap: 12px;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
}
.city-chip {
  display: flex; flex-direction: column; gap: 3px;
  padding: 14px 16px 10px; border-radius: var(--radius-m);
  background: var(--card-solid); box-shadow: var(--shadow-1);
  transition: all .35s var(--spring);
}
.city-chip:hover { transform: translateY(-3px); box-shadow: var(--shadow-2); }
.city-chip .c-main { display: flex; flex-direction: column; gap: 3px; }
.city-chip .c-name { font-size: 15px; font-weight: 700; display: flex; align-items: center; gap: 7px; }
.city-chip .c-badge {
  font-style: normal; font-size: 10px; font-weight: 700; color: #fff;
  padding: 2px 8px; border-radius: 980px;
  background: linear-gradient(135deg, #ff9500, #ff6a1f);
}
.city-chip .c-sub { font-size: 12px; color: var(--ink-3); }
.city-chip .c-actions {
  display: flex; gap: 6px; margin-top: 10px; padding-top: 9px;
  border-top: 1px dashed var(--line);
}
.city-chip .c-actions a {
  flex: 1; text-align: center; font-size: 12px; font-weight: 600;
  padding: 5px 0; border-radius: 980px; color: var(--ink-2);
  background: #f2f2f5; transition: all .3s var(--spring);
}
.city-chip .c-actions a:hover { background: var(--blue-soft); color: var(--blue); }

/* ================= 通用城市页 ================= */
.city-page-head {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 20px; flex-wrap: wrap; margin-bottom: 22px;
}
.city-page-head h1 { font-size: clamp(30px, 5vw, 44px); font-weight: 800; margin-top: 6px; }
.city-page-sub { color: var(--ink-2); font-size: 13.5px; margin-top: 6px; }
.featured-banner {
  display: flex; align-items: center; gap: 10px;
  margin: 4px 0 24px; padding: 16px 22px;
  border-radius: var(--radius-l); font-size: 14.5px; font-weight: 600;
  background: linear-gradient(135deg, #fff6e8, #ffefd6);
  border: 1px solid #ffe2b0; color: #8a5a00;
  transition: all .35s var(--spring);
}
.featured-banner:hover { transform: translateY(-2px); box-shadow: var(--shadow-1); }
.featured-banner .arrow { margin-left: auto; }

.district-grid {
  display: grid; gap: 12px;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
}
.district-card {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 16px; border-radius: var(--radius-m);
  background: var(--card-solid); box-shadow: var(--shadow-1);
  font-size: 14px; font-weight: 600;
  transition: all .35s var(--spring);
}
.district-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-2); }
.district-card .d-go { font-size: 12px; font-weight: 500; color: var(--blue); opacity: 0; transition: opacity .3s var(--spring); }
.district-card:hover .d-go { opacity: 1; }

/* ================= 地区美食页 ================= */
.food-hero { padding-bottom: 24px; }
.district-select-row {
  display: flex; gap: 12px; justify-content: center; align-items: center;
  margin-top: 20px; flex-wrap: wrap;
}
.district-select-row select {
  padding: 10px 18px; border-radius: 980px; font-size: 14px;
  border: 1px solid var(--line); background: var(--card-solid);
  color: var(--ink); outline: none; box-shadow: var(--shadow-1);
}
.food-toolbar {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  padding: 14px 18px; border-radius: var(--radius-l);
  background: var(--card-solid); box-shadow: var(--shadow-1);
}
.ft-label { font-size: 13.5px; color: var(--ink-2); font-weight: 600; }
.food-toolbar .sort-group { margin-left: auto; }

/* 路线规划摘要（百度实时计算结果） */
.route-summary { display: flex; gap: 14px; flex-wrap: wrap; }
.rs-item {
  flex: 1; min-width: 90px; text-align: center;
  padding: 12px 8px; border-radius: var(--radius-m);
  background: #f2f2f5;
}
.rs-num { display: block; font-size: 20px; font-weight: 800; color: var(--blue); }
.rs-lab { display: block; font-size: 12px; color: var(--ink-3); margin-top: 2px; }
.rs-tip { margin-top: 12px; font-size: 12.5px; color: var(--ink-2); }

/* ================= 中华美食文库 ================= */
.cuisine-grid {
  display: grid; gap: 22px;
  grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
}
.cuisine-card {
  border-radius: var(--radius-xl); overflow: hidden;
  background: var(--card-solid); box-shadow: var(--shadow-1);
  transition: all .45s var(--spring);
}
.cuisine-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-2); }
.cc-head {
  display: flex; align-items: center; gap: 14px;
  padding: 22px 24px; color: #fff;
}
.cc-icon {
  width: 48px; height: 48px; border-radius: 15px;
  display: grid; place-items: center; font-size: 24px;
  background: rgba(255, 255, 255, .22);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
}
.cc-head h3 { font-size: 20px; font-weight: 800; }
.cc-region { font-size: 12.5px; opacity: .9; }
.cc-body { padding: 20px 24px 24px; }
.cc-img { position: relative; height: 170px; overflow: hidden; background: #e8e8ed; }
.cc-img img {
  width: 100%; height: 100%; object-fit: cover;
  opacity: 0; transition: opacity .8s ease, transform 1s var(--spring);
}
.cc-img img.loaded { opacity: 1; }
.cuisine-card:hover .cc-img img { transform: scale(1.05); }
.cc-img-cap {
  position: absolute; left: 10px; bottom: 8px;
  font-size: 10.5px; color: #fff; padding: 3px 10px; border-radius: 980px;
  background: rgba(0, 0, 0, .35);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
}
.cc-label { font-size: 12px; font-weight: 700; color: var(--ink-3); margin-top: 12px; letter-spacing: 1px; }
.cc-label:first-child { margin-top: 0; }
.cc-text { font-size: 13.5px; color: var(--ink-2); margin-top: 4px; }