:root {
  --ink-900: #1d2a3d;
  --ink-700: #3f5168;
  --ink-500: #5d7089;
  --card-bg: rgba(255, 255, 255, 0.72);
  --card-line: rgba(255, 255, 255, 0.65);
  --primary-a: #ff7e6b;
  --primary-b: #ffb56b;
  --secondary-a: #57c4ad;
  --secondary-b: #75d8f2;
  --shadow-soft: 0 18px 45px rgba(75, 94, 126, 0.22);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink-900);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background:
    radial-gradient(circle at 8% 15%, rgba(255, 166, 133, 0.45), transparent 38%),
    radial-gradient(circle at 86% 12%, rgba(119, 230, 197, 0.38), transparent 35%),
    radial-gradient(circle at 50% 86%, rgba(152, 202, 255, 0.3), transparent 46%),
    linear-gradient(145deg, #fff4ef 0%, #f2fbff 45%, #eefcf6 100%);
  overflow-x: hidden;
}

.aurora {
  position: fixed;
  filter: blur(62px);
  z-index: -1;
  border-radius: 50%;
  opacity: 0.45;
  pointer-events: none;
}

.aurora-a {
  width: 340px;
  height: 340px;
  background: #ffb79d;
  top: -120px;
  left: -90px;
  animation: float-slow 10s ease-in-out infinite;
}

.aurora-b {
  width: 390px;
  height: 390px;
  background: #89dfcc;
  right: -120px;
  top: 18%;
  animation: float-slow 12s ease-in-out infinite reverse;
}

.aurora-c {
  width: 360px;
  height: 360px;
  background: #9fcbff;
  bottom: -150px;
  left: 38%;
  animation: float-slow 11s ease-in-out infinite;
}

.page {
  width: min(1180px, 92vw);
  margin: 22px auto 50px;
}

.glass {
  backdrop-filter: blur(9px);
  -webkit-backdrop-filter: blur(9px);
  border: 1px solid var(--card-line);
  background: var(--card-bg);
  box-shadow: var(--shadow-soft);
  border-radius: 24px;
}

.hero {
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: 16px;
  align-items: center;
  padding: 24px;
}

.hero-sub {
  margin: 0;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.11em;
  color: #ea6b55;
  text-transform: uppercase;
}

h1 {
  margin: 8px 0 12px;
  font-size: clamp(2rem, 4.1vw, 3rem);
  line-height: 1.08;
  font-family: "STZhongsong", "Songti SC", serif;
}

.hero-desc {
  margin: 0;
  max-width: 620px;
  color: var(--ink-700);
  line-height: 1.6;
}

.stat-row {
  margin-top: 18px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.stat-box {
  min-width: 88px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.7);
  background: linear-gradient(130deg, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.64));
  padding: 9px 12px;
}

.stat-box p {
  margin: 0;
  font-size: 1.3rem;
  font-weight: 800;
  color: #2c4869;
}

.stat-box span {
  display: block;
  margin-top: 2px;
  color: var(--ink-500);
  font-size: 0.85rem;
}

.hero-cup-wrap {
  display: grid;
  place-items: center;
  min-height: 230px;
}

.cup {
  width: 180px;
  height: 210px;
  border-radius: 18px 18px 46px 46px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.76), rgba(245, 255, 255, 0.35));
  border: 2px solid rgba(255, 255, 255, 0.75);
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 34px rgba(64, 92, 126, 0.26);
  animation: cup-bounce 2.8s ease-in-out infinite;
}

.tea-surface {
  position: absolute;
  left: 0;
  right: 0;
  top: 42px;
  bottom: 0;
  background: linear-gradient(180deg, rgba(255, 183, 109, 0.92), rgba(218, 132, 96, 0.88));
}

.straw {
  position: absolute;
  width: 16px;
  height: 125px;
  right: 22px;
  top: -72px;
  border-radius: 999px;
  background: linear-gradient(180deg, #6ed8d5, #4ea7eb);
  transform: rotate(5deg);
}

.boba {
  position: absolute;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: radial-gradient(circle at 25% 25%, #4d2f2f, #201315 70%);
  bottom: 12px;
}

.b1 { left: 16px; animation: boba-float 2.4s ease-in-out infinite; }
.b2 { left: 56px; animation: boba-float 2.9s ease-in-out infinite 0.2s; }
.b3 { left: 92px; animation: boba-float 2.2s ease-in-out infinite 0.45s; }
.b4 { left: 130px; animation: boba-float 3s ease-in-out infinite 0.7s; }

.panel,
.result-wrap,
.tips {
  margin-top: 16px;
  padding: 18px;
}

.control-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(160px, 1fr));
  gap: 11px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.field-wide {
  grid-column: span 2;
}

.field span {
  color: var(--ink-700);
  font-size: 0.92rem;
  font-weight: 700;
}

select,
input {
  width: 100%;
  border-radius: 13px;
  border: 1px solid rgba(174, 194, 221, 0.8);
  background: rgba(255, 255, 255, 0.88);
  color: var(--ink-900);
  padding: 10px 12px;
  font-size: 0.95rem;
}

select:focus,
input:focus,
button:focus {
  outline: 2px solid rgba(103, 156, 255, 0.55);
  outline-offset: 1px;
}

.filter-summary {
  margin: 12px 0 8px;
  padding: 10px 12px;
  border-radius: 12px;
  background: linear-gradient(125deg, rgba(240, 250, 255, 0.95), rgba(241, 255, 247, 0.92));
  border: 1px solid rgba(183, 222, 235, 0.66);
  color: #3a5973;
  font-size: 0.9rem;
}

.city-top-wrap {
  margin-top: 8px;
  border-radius: 16px;
  border: 1px solid rgba(179, 214, 236, 0.82);
  background: linear-gradient(125deg, rgba(255, 251, 244, 0.85), rgba(241, 251, 255, 0.86));
  padding: 12px;
}

.city-top-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.city-top-head h3 {
  margin: 0;
  font-size: 1rem;
  color: #31567a;
}

.city-top-tools {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.switch-line {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.87rem;
  color: #436487;
}

.switch-line input {
  width: 16px;
  height: 16px;
  margin: 0;
  accent-color: #4fb698;
}

.city-top-hint {
  margin: 8px 0;
  color: #557394;
  font-size: 0.88rem;
}

.city-top-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 8px;
}

.top-item {
  border: 1px solid rgba(180, 214, 233, 0.88);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.9);
  padding: 8px 10px;
  text-align: left;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: transform 0.16s ease, border-color 0.16s ease, box-shadow 0.16s ease;
}

.top-item:hover {
  transform: translateY(-1px);
  border-color: rgba(117, 177, 229, 0.95);
  box-shadow: 0 6px 14px rgba(93, 133, 179, 0.22);
}

.top-item.selected {
  border-color: rgba(245, 132, 102, 0.95);
  background: linear-gradient(130deg, rgba(255, 244, 238, 0.96), rgba(255, 252, 246, 0.96));
}

.top-rank {
  font-size: 0.77rem;
  font-weight: 700;
  color: #ea6f56;
}

.top-name {
  font-size: 0.9rem;
  color: #2f4e6f;
  font-weight: 700;
}

.top-meta {
  font-size: 0.8rem;
  color: #5a7692;
}

.brand-toolbar {
  margin-top: 12px;
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

#brandCount {
  margin: 0;
  color: var(--ink-700);
}

.toolbar-btns {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.brand-list {
  margin-top: 9px;
  max-height: 295px;
  overflow: auto;
  padding: 7px;
  border-radius: 14px;
  border: 1px solid rgba(185, 212, 228, 0.74);
  background: linear-gradient(140deg, rgba(250, 255, 255, 0.8), rgba(247, 252, 255, 0.7));
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(178px, 1fr));
  gap: 8px;
}

.brand-item label {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  border-radius: 10px;
  border: 1px solid rgba(199, 218, 236, 0.8);
  background: rgba(255, 255, 255, 0.88);
  padding: 8px 10px;
  color: #324f68;
  font-size: 0.9rem;
  transition: transform 0.16s ease, border-color 0.16s ease;
}

.brand-item label:hover {
  transform: translateY(-1px);
  border-color: rgba(146, 189, 235, 0.9);
}

.brand-item input {
  width: 16px;
  height: 16px;
  margin: 0;
  accent-color: #4fb698;
}

.action-row {
  margin-top: 14px;
  display: flex;
  gap: 9px;
  flex-wrap: wrap;
}

.btn {
  border: none;
  border-radius: 13px;
  padding: 10px 14px;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 700;
  transition: transform 0.16s ease, box-shadow 0.16s ease, opacity 0.16s ease;
}

.btn.small {
  padding: 7px 10px;
  font-size: 0.84rem;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 18px rgba(84, 111, 144, 0.22);
}

.btn:active {
  transform: translateY(0);
}

.btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

.btn.primary {
  color: #fff;
  background: linear-gradient(115deg, var(--primary-a), var(--primary-b));
}

.btn.secondary {
  color: #08364a;
  background: linear-gradient(115deg, #9be8db, #8edaff);
}

.btn.ghost {
  color: var(--ink-700);
  background: linear-gradient(115deg, #eef7ff, #e7fff5);
  border: 1px solid rgba(188, 214, 232, 0.88);
}

.result-title {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
}

.result-title h2 {
  margin: 0;
  font-family: "STZhongsong", "Songti SC", serif;
}

.result-title p {
  margin: 0;
  color: var(--ink-700);
}

.result-card {
  margin-top: 12px;
  border-radius: 18px;
  border: 1px solid rgba(188, 215, 239, 0.82);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.93), rgba(240, 252, 255, 0.88));
  padding: 15px;
  animation: pop-in 0.28s ease;
}

.result-card.empty {
  color: var(--ink-700);
}

.result-card.preview {
  background: linear-gradient(135deg, rgba(255, 245, 236, 0.95), rgba(237, 250, 255, 0.9));
}

.gift-banner {
  border-radius: 14px;
  border: 1px solid rgba(255, 171, 146, 0.72);
  background: linear-gradient(120deg, rgba(255, 232, 223, 0.94), rgba(255, 248, 236, 0.96));
  padding: 10px 12px;
  margin-bottom: 12px;
}

.gift-banner span {
  display: inline-block;
  font-size: 0.75rem;
  color: #d15e47;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.gift-banner p {
  margin: 4px 0 0;
  font-size: 1rem;
  font-weight: 700;
  color: #8a3b2c;
  line-height: 1.45;
}

.preview-tag {
  margin: 0;
  color: #db7356;
  font-size: 0.9rem;
  font-weight: 700;
}

.preview-main {
  margin: 6px 0 10px;
  font-size: 1.1rem;
  font-weight: 700;
  color: #2d425e;
}

.preview-line {
  height: 8px;
  border-radius: 999px;
  background: rgba(224, 236, 252, 0.8);
  overflow: hidden;
}

.preview-line span {
  display: block;
  width: 34%;
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(120deg, #ff9f86, #7ad8d0);
  animation: preview-scan 0.9s ease-in-out infinite;
}

.result-main {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
}

.result-brand {
  margin: 0;
  font-size: 1.2rem;
  font-weight: 800;
  color: #263f5f;
}

.result-drink {
  margin: 6px 0 0;
  color: #406083;
  font-size: 1rem;
}

.price {
  margin: 0;
  color: #f26a4d;
  font-weight: 800;
}

.meta-list {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.meta {
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(187, 217, 238, 0.88);
  background: linear-gradient(130deg, #f1f8ff, #effff7);
  color: #335a7d;
  font-size: 0.86rem;
}

.meta.hot {
  border-color: rgba(249, 158, 130, 0.8);
  background: linear-gradient(130deg, #fff3ed, #fff9f0);
  color: #b64a33;
}

.note {
  margin: 11px 0 0;
  color: #466689;
}

.pairing {
  margin: 8px 0 0;
  color: #3e5f7e;
}

.tips h3 {
  margin: 0 0 8px;
  font-family: "STZhongsong", "Songti SC", serif;
}

.tips p {
  margin: 0;
  color: var(--ink-700);
  line-height: 1.6;
}

@keyframes cup-bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

@keyframes boba-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes preview-scan {
  0% { transform: translateX(-30%); }
  50% { transform: translateX(165%); }
  100% { transform: translateX(-30%); }
}

@keyframes pop-in {
  from { transform: translateY(3px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

@keyframes float-slow {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(16px); }
}

@media (max-width: 980px) {
  .hero {
    grid-template-columns: 1fr;
    padding: 20px;
  }

  .hero-cup-wrap {
    min-height: 170px;
  }

  .control-grid {
    grid-template-columns: repeat(2, minmax(140px, 1fr));
  }

  .field-wide {
    grid-column: span 2;
  }
}

@media (max-width: 640px) {
  .page {
    width: 94vw;
    margin-top: 16px;
  }

  .panel,
  .result-wrap,
  .tips {
    padding: 14px;
    border-radius: 18px;
  }

  .control-grid {
    grid-template-columns: 1fr;
  }

  .field-wide {
    grid-column: span 1;
  }

  .city-top-list {
    grid-template-columns: 1fr;
  }

  .brand-list {
    grid-template-columns: repeat(auto-fill, minmax(146px, 1fr));
    max-height: 240px;
  }

  .btn {
    flex: 1 1 132px;
  }

  .stat-box {
    min-width: 80px;
  }
}
.btn.accent {
  color: #21324f;
  background: linear-gradient(115deg, #ffd7a1, #ffb88f);
}

.recent-picks {
  margin-top: 10px;
  border: 1px dashed rgba(186, 211, 232, 0.9);
  border-radius: 14px;
  background: linear-gradient(120deg, rgba(245, 252, 255, 0.9), rgba(249, 255, 250, 0.9));
  padding: 10px 12px;
}

.recent-title {
  margin: 0 0 8px;
  color: #3a5f84;
  font-size: 0.88rem;
  font-weight: 700;
}

.recent-empty {
  margin: 0;
  color: #567593;
  font-size: 0.86rem;
}

.recent-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.recent-chip {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(181, 209, 233, 0.9);
  background: linear-gradient(130deg, #f2f9ff, #effff6);
  color: #395f82;
  font-size: 0.83rem;
}