/* ============================================================
   中转站模型比价 — 设计系统（参考插件商店：Arco 字节极简风）
   中性色板 + 品牌蓝，浅色，克制的层级
   ============================================================ */

:root {
  color-scheme: light;

  --bg: #ffffff;
  --bg-subtle: #f7f8fa;
  --bg-soft: #f2f3f5;
  --bg-hover: #f2f3f5;

  --text-1: #1d2129;
  --text-2: #4e5969;
  --text-3: #86909c;

  --line: #e5e6eb;
  --line-strong: #c9cdd4;

  --accent: #165dff;
  --accent-hover: #4080ff;
  --accent-soft: #e8f3ff;

  --success: #00b42a;
  --success-soft: #e8ffea;
  --warning: #ff7d00;
  --warning-soft: #fff3e8;
  --danger: #f53f3f;
  --danger-soft: #ffece8;

  --radius-sm: 4px;
  --radius: 6px;
  --radius-lg: 10px;

  --shadow-card: 0 1px 2px rgba(29, 33, 41, 0.04);
  --shadow-pop: 0 4px 16px rgba(29, 33, 41, 0.08);

  --font-sans:
    'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
    'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue',
    Arial, sans-serif;
  --font-mono:
    'JetBrains Mono', ui-monospace, 'SF Mono', SFMono-Regular, Menlo, Consolas,
    'Cascadia Code', 'Liberation Mono', monospace;

  --header-h: 56px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text-1);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5715;
}

button,
input,
select {
  font: inherit;
}

button,
a,
select {
  -webkit-tap-highlight-color: transparent;
}

h1,
h2,
h3,
h4,
p {
  margin: 0;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  color: var(--accent-hover);
}

img,
svg {
  display: block;
}

::selection {
  background: var(--accent-soft);
}

[hidden] {
  display: none !important;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

/* ---------- layout ---------- */

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

@media (max-width: 767px) {
  .container {
    padding: 0 12px;
  }
}

/* ---------- header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.site-header__inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text-1);
}

.brand:hover {
  color: var(--text-1);
}

.brand__mark {
  width: 30px;
  height: 30px;
  border-radius: var(--radius);
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-soft);
  border: 1px solid var(--line);
}

.brand__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* hero 吉祥物已并入 home-hero__logo 结构 */

/* ---------- cheapest strip ---------- */
  font-size: 15px;
  font-weight: 600;
}

.header-meta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text-3);
  font-size: 13px;
  white-space: nowrap;
}

.header-meta .mono-label {
  color: var(--text-2);
}

@media (max-width: 640px) {
  .header-meta {
    display: none;
  }
}

/* ---------- hero ---------- */

.home-hero {
  border-bottom: 1px solid var(--line);
}

.home-hero__inner {
  display: grid;
  justify-items: center;
  padding-block: 44px 36px;
  text-align: center;
}

.home-hero__logo {
  width: 128px;
  height: 128px;
  object-fit: cover;
  border-radius: 24px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-pop);
}

.home-hero__title {
  margin-top: 16px;
  font-size: 32px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.home-hero__lead {
  margin-top: 8px;
  color: var(--text-2);
  font-size: 14px;
  max-width: 560px;
}

.home-hero__stats {
  margin-top: 20px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}

@media (max-width: 767px) {
  .home-hero__inner {
    padding-block: 32px 26px;
  }
  .home-hero__logo {
    width: 100px;
    height: 100px;
    border-radius: 20px;
  }
  .home-hero__title {
    font-size: 26px;
  }
}

.stat-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--bg-subtle);
  border: 1px solid var(--line);
  color: var(--text-2);
  font-size: 12.5px;
}

.stat-chip strong {
  color: var(--text-1);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

/* ---------- cheapest strip ---------- */

.cheapest-strip {
  margin-top: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--bg-subtle);
  padding: 12px 16px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px 20px;
}

@media (max-width: 767px) {
  .cheapest-strip {
    grid-template-columns: 1fr;
  }
}

.cheapest-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.cheapest-item__model {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-3);
  white-space: normal;
  word-break: break-all;
}

.cheapest-item__row {
  display: flex;
  align-items: baseline;
  gap: 6px;
  flex-wrap: wrap;
  min-width: 0;
}

.cheapest-item__site {
  color: var(--text-1);
  font-weight: 500;
  font-size: 13px;
  white-space: normal;
  word-break: break-all;
}

.cheapest-item__price {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  color: var(--success);
  font-weight: 600;
  white-space: nowrap;
}

/* ---------- tools row ---------- */

.home-tools {
  margin-top: 24px;
}

.home-tools__row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.home-tools__search {
  flex: 1 1 220px;
  min-width: 200px;
}

.field {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 34px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text-2);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.field:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-soft);
}

.field input {
  flex: 1;
  min-width: 0;
  border: none;
  outline: none;
  background: transparent;
  color: var(--text-1);
}

.field input::placeholder {
  color: var(--text-3);
}

.select-field {
  position: relative;
  cursor: pointer;
}

.select-field > svg {
  pointer-events: none;
  color: var(--text-3);
}

.select-field .select-value {
  white-space: nowrap;
  font-size: 13.5px;
}

.select-field select {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

/* ---------- chips ---------- */

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

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 30px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--bg);
  color: var(--text-2);
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s;
}

.chip:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-soft);
}

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

.chip .chip__count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-3);
  font-variant-numeric: tabular-nums;
}

.chip.is-active .chip__count {
  color: rgba(255, 255, 255, 0.85);
}

.chip__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--line-strong);
}

/* ---------- results head ---------- */

.results-head {
  margin-top: 24px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.results-head p {
  color: var(--text-1);
  font-size: 14px;
}

.results-head strong {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.results-head__note {
  color: var(--text-3) !important;
  font-size: 12.5px !important;
}

/* ---------- price table ---------- */

.table-wrap {
  margin-top: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow-x: auto;
  background: var(--bg);
}

@media (min-width: 768px) {
  /* 桌面端去掉横向滚动容器，让表头能相对页面吸顶 */
  .table-wrap {
    overflow: visible;
  }
}

.price-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 13px;
}

.price-table thead th:first-child {
  border-top-left-radius: var(--radius-lg);
}

.price-table thead th:last-child {
  border-top-right-radius: var(--radius-lg);
}

.price-table thead th {
  position: sticky;
  top: var(--header-h);
  z-index: 1;
  background: var(--bg-subtle);
  color: var(--text-3);
  font-weight: 500;
  font-size: 12px;
  text-align: right;
  padding: 9px 12px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

.price-table thead th:first-child,
.price-table thead th:nth-child(2),
.price-table thead th:nth-child(3) {
  text-align: left;
}

.price-table tbody td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--line);
  text-align: right;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.price-table tbody tr:last-child td {
  border-bottom: none;
}

.price-table tbody tr.is-call td {
  background: var(--warning-soft);
}

.price-table tbody tr:hover td {
  background: var(--bg-hover);
}

.price-table tbody tr.is-cheapest td {
  background: var(--success-soft);
}

.price-table td.col-site {
  text-align: left;
  font-weight: 500;
  color: var(--text-1);
  max-width: 180px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.site-link {
  border: none;
  background: none;
  padding: 0;
  margin: 0;
  color: var(--text-1);
  font-weight: 500;
  font-size: 13px;
  cursor: pointer;
  max-width: 150px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  vertical-align: middle;
  transition: color 0.15s;
}

.site-link:hover {
  color: var(--accent);
  text-decoration: underline;
}

.price-table td.col-model {
  text-align: left;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--text-2);
  max-width: 220px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.price-table td.col-model .variant-tag {
  color: var(--text-3);
  font-size: 11.5px;
}

.price-table td.col-group {
  text-align: left;
  color: var(--text-2);
  max-width: 140px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.price-table td.col-price {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 13.5px;
}

.price-table td.col-price .out {
  font-weight: 400;
  color: var(--text-2);
}

.price-table td.col-call {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--warning);
}

.price-table td.col-rmb {
  color: var(--text-3);
  font-family: var(--font-mono);
  font-size: 12px;
}

.price-table td.col-ratio {
  color: var(--text-3);
  font-family: var(--font-mono);
  font-size: 12px;
}

.price-table td .mini-badge {
  display: inline-block;
  margin-left: 6px;
  padding: 1px 6px;
  border-radius: 3px;
  background: var(--success);
  color: #fff;
  font-size: 11px;
  font-weight: 500;
  vertical-align: 1px;
}

@media (max-width: 767px) {
  .category-row {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 4px;
  }
  .chip {
    flex: none;
  }
}

@media (max-width: 767px) {
  .table-wrap {
    border-radius: var(--radius);
  }
  .price-table {
    min-width: 720px;
  }
}

/* ---------- empty state ---------- */

.empty-state {
  margin: 48px 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
  color: var(--text-3);
}

.empty-state h2 {
  font-size: 16px;
  font-weight: 500;
  color: var(--text-2);
}

/* ---------- modal ---------- */

.modal-mask {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(29, 33, 41, 0.45);
  padding: 16px;
}

.modal {
  width: min(360px, 100%);
  background: var(--bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-pop);
  padding: 20px;
}

.modal__title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-1);
}

.modal__site {
  margin-top: 12px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-1);
  word-break: break-all;
}

.modal__url {
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-3);
  word-break: break-all;
}

.modal__actions {
  margin-top: 18px;
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

/* ---------- view toggles ---------- */

.toggle-row {
  display: flex;
  gap: 8px;
  margin-left: auto;
}

.toggle-btn {
  height: 30px;
  padding: 0 12px;
  font-size: 12.5px;
  border-radius: var(--radius);
}

/* ---------- back to top ---------- */

.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 150;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--text-2);
  box-shadow: var(--shadow-pop);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s, border-color 0.2s;
}

.back-to-top:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* ---------- footer ---------- */

.site-footer {
  margin-top: 56px;
  border-top: 1px solid var(--line);
  background: var(--bg-subtle);
}

.site-footer__inner {
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  color: var(--text-3);
  font-size: 12.5px;
}

.site-footer__note {
  color: var(--text-3);
}

/* ---------- header nav popups (公众号 / 加入社群) ---------- */

.site-nav {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.nav-pop {
  position: relative;
}

.nav-pop__trigger {
  height: 32px;
  padding: 0 12px;
  border: none;
  background: transparent;
  color: var(--text-2);
  font-size: 13.5px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}

.nav-pop__trigger:hover {
  background: var(--bg-hover);
  color: var(--text-1);
}

.nav-pop__card {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  z-index: 200;
  width: 244px;
  padding: 16px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-pop);
  display: none;
}

.nav-pop:hover .nav-pop__card,
.nav-pop.is-open .nav-pop__card {
  display: block;
}

.nav-pop__title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-1);
  margin-bottom: 10px;
  text-align: center;
}

.nav-pop__qr {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

.nav-pop__id {
  margin-top: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-size: 13px;
  color: var(--text-2);
}

.nav-pop__copy {
  padding: 2px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--bg-subtle);
  color: var(--accent);
  font-size: 12.5px;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
}

.nav-pop__copy:hover {
  border-color: var(--accent);
}

@media (max-width: 767px) {
  .nav-pop__card {
    position: fixed;
    top: calc(var(--header-h) + 8px);
    right: 12px;
    left: 12px;
    width: auto;
  }
}

/* ---------- misc ---------- */

.mono-label {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-3);
  font-variant-numeric: tabular-nums;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 32px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text-1);
  font-size: 13.5px;
  cursor: pointer;
  transition: all 0.2s;
}

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

/* 跳转按钮：淡绿色（放在 .btn 之后以覆盖其默认样式） */
.btn--jump {
  background: #52c41a;
  border-color: #52c41a;
  color: #fff;
}

.btn--jump:hover {
  background: #73d13d;
  border-color: #73d13d;
  color: #fff;
}

/* scrollbars (subtle) */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--line-strong) transparent;
}

*::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

*::-webkit-scrollbar-thumb {
  background: var(--line-strong);
  border-radius: 4px;
}