@import url('https://fonts.googleapis.com/css2?family=Calistoga&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --bg: #FAFAFA;
  --fg: #0F172A;
  --muted: #F1F5F9;
  --muted-fg: #5B6472;
  --accent: #047857;
  --accent-sec: #0A7D5C;
  --card: #FFFFFF;
  --border: #E2E8F0;
  --radius: 16px;
  --shadow: 0 4px 10px rgba(15, 23, 42, .08), 0 1px 3px rgba(15, 23, 42, .06);
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --display: "Calistoga", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Georgia, serif;
  --ease: cubic-bezier(.22, 1, .36, 1);
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  padding: 24px 12px calc(24px + env(safe-area-inset-bottom));
  background: #E9EEF6;
  color: var(--fg);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, p, figure, ul, ol, dl { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
img, svg { display: block; max-width: 100%; }

/* ---------- 手机框 ---------- */
.device {
  position: relative;
  width: 100%;
  max-width: 430px;
  margin: 0 auto;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 32px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.statusbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px 4px;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--fg);
  background: var(--bg);
}
.statusbar__icons { display: flex; align-items: center; gap: 6px; }
.statusbar__icons svg { width: 15px; height: 15px; }

.home-indicator {
  height: 5px;
  width: 132px;
  margin: 18px auto 10px;
  border-radius: 999px;
  background: #0F172A;
  opacity: .85;
}

/* ---------- 顶部应用栏 ---------- */
.appbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 20px 14px;
  background: rgba(250, 250, 250, .82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 8px; min-height: 44px; }
.brand__mark {
  width: 30px; height: 30px;
  display: grid; place-items: center;
  border-radius: 10px;
  overflow: hidden;
  background: transparent;
  color: #fff;
}
.brand__mark img { width: 100%; height: 100%; display: block; }
.brand__name { font-family: var(--display); font-size: 17px; letter-spacing: .01em; }
.appbar__actions { margin-left: auto; display: flex; gap: 4px; }

.icon-btn {
  width: 44px; height: 44px;
  display: grid; place-items: center;
  border: 1px solid transparent;
  border-radius: 12px;
  background: transparent;
  color: var(--fg);
  cursor: pointer;
  transition: background .2s var(--ease), border-color .2s var(--ease), transform .15s var(--ease);
}
.icon-btn svg { width: 20px; height: 20px; }
.icon-btn:hover { background: var(--muted); border-color: var(--border); }
.icon-btn:active { transform: scale(.94); }
.icon-btn--bordered { border-color: var(--border); background: var(--card); }

/* ---------- 通用布局 ---------- */
.screen { padding: 20px 20px 8px; }
.screen--flush { padding-bottom: 0; }
.page-body { padding-bottom: 96px; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted-fg);
}
.pulse {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(4, 120, 87, .5);
  animation: pulse 2.4s var(--ease) infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(4, 120, 87, .45); }
  70% { box-shadow: 0 0 0 8px rgba(4, 120, 87, 0); }
  100% { box-shadow: 0 0 0 0 rgba(4, 120, 87, 0); }
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}
.section-head h2 { font-family: var(--display); font-size: 24px; line-height: 1.2; letter-spacing: -.01em; }
.section-head a {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  white-space: nowrap;
  padding: 8px 2px;
}
.section-head a:hover { text-decoration: underline; text-underline-offset: 3px; }
.section-note { color: var(--muted-fg); font-size: 14px; line-height: 1.7; max-width: 34em; margin-top: 6px; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  right: -44px; top: -44px;
  width: 150px; height: 150px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(4, 120, 87, .12), rgba(16, 185, 129, .04));
  pointer-events: none;
}
.hero h1 {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(2rem, 8vw, 2.5rem);
  line-height: 1.1;
  letter-spacing: -.02em;
  margin: 12px 0 10px;
  position: relative;
  z-index: 1;
}
.hero h1 em {
  font-style: normal;
  color: var(--accent);
  background: linear-gradient(120deg, var(--accent), var(--accent-sec));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero p { color: var(--muted-fg); font-size: 15px; line-height: 1.7; max-width: 34em; position: relative; z-index: 1; }

.hero__cta { display: grid; gap: 10px; margin-top: 20px; position: relative; z-index: 1; }

.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  position: relative;
  z-index: 1;
}
.hero__stats dt { font-family: var(--mono); font-size: 11px; color: var(--muted-fg); letter-spacing: .04em; }
.hero__stats dd { margin: 2px 0 0; font-family: var(--display); font-size: 20px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .01em;
  cursor: pointer;
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease), transform .15s var(--ease), box-shadow .2s var(--ease);
}
.btn svg { width: 18px; height: 18px; flex: none; }
.btn:active { transform: scale(.97); }
.btn:focus-visible { outline: 3px solid rgba(4, 120, 87, .35); outline-offset: 2px; }

.btn--primary {
  color: #fff;
  background: linear-gradient(120deg, var(--accent), var(--accent-sec));
  box-shadow: var(--shadow);
}
.btn--primary:hover { box-shadow: 0 8px 18px rgba(4, 120, 87, .22); transform: translateY(-1px); }
.btn--primary:active { transform: scale(.97) translateY(0); }

.btn--secondary { background: var(--card); color: var(--fg); border-color: var(--border); }
.btn--secondary:hover { border-color: var(--accent); color: var(--accent); }

.btn--ghost { background: transparent; color: var(--accent); padding: 0 8px; min-height: 44px; }
.btn--ghost:hover { text-decoration: underline; text-underline-offset: 3px; }

.btn--block { width: 100%; }
.btn--sm { min-height: 44px; padding: 0 16px; font-size: 14px; border-radius: 12px; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }

/* ---------- 特性卡片 ---------- */
.cards { display: grid; gap: 12px; margin-top: 16px; }
.card {
  display: block;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  transition: border-color .2s var(--ease), transform .2s var(--ease), background .2s var(--ease);
}
.card:hover { border-color: var(--accent-sec); transform: translateY(-2px); }
.card:focus-visible { outline: 3px solid rgba(4, 120, 87, .35); outline-offset: 2px; }
.card__top { display: flex; align-items: center; gap: 12px; }
.card__icon {
  width: 44px; height: 44px;
  flex: none;
  display: grid; place-items: center;
  border-radius: 12px;
  background: var(--muted);
  color: var(--accent);
}
.card__icon svg { width: 22px; height: 22px; }
.card h3 { font-family: var(--display); font-size: 18px; font-weight: 700; line-height: 1.3; }
.card p { margin-top: 8px; color: var(--muted-fg); font-size: 14px; line-height: 1.6; }
.card__more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
}
.card__more svg { width: 15px; height: 15px; transition: transform .2s var(--ease); }
.card:hover .card__more svg { transform: translateX(3px); }

/* ---------- 控件区 ---------- */
.panel {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  padding: 20px;
}
.panel + .panel { margin-top: 12px; }
.panel h3 { font-family: var(--display); font-size: 18px; }
.panel p.panel__hint { color: var(--muted-fg); font-size: 14px; margin-top: 6px; }

.btn-row { display: grid; gap: 10px; margin-top: 16px; }
.control-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 56px;
  padding: 8px 0;
}
.control-row + .control-row { border-top: 1px solid var(--border); }
.control-row__label { font-size: 15px; font-weight: 500; }
.control-row__desc { font-size: 13px; color: var(--muted-fg); }

.badges { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .04em;
  text-transform: uppercase;
  background: var(--muted);
  color: var(--fg);
  border: 1px solid var(--border);
}
.badge--accent { background: var(--accent); border-color: var(--accent); color: #fff; }
.badge--soft { background: rgba(4, 120, 87, .08); border-color: rgba(4, 120, 87, .22); color: var(--accent); }

.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.chip {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 0 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--card);
  font-size: 13px;
  color: var(--muted-fg);
  cursor: pointer;
  transition: all .2s var(--ease);
}
.chip:hover { border-color: var(--accent-sec); color: var(--accent); }
.chip[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: #fff; }

/* 开关 */
.switch {
  position: relative;
  width: 52px; height: 32px;
  flex: none;
  padding: 0;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--muted);
  cursor: pointer;
  transition: background .25s var(--ease), border-color .25s var(--ease);
}
.switch::after {
  content: "";
  position: absolute;
  top: 3px; left: 3px;
  width: 24px; height: 24px;
  border-radius: 50%;
  background: #fff;
  border: 1px solid var(--border);
  transition: transform .25s var(--ease);
}
.switch[aria-checked="true"] { background: var(--accent); border-color: var(--accent); }
.switch[aria-checked="true"]::after { transform: translateX(20px); border-color: transparent; }
.switch:focus-visible { outline: 3px solid rgba(4, 120, 87, .35); outline-offset: 2px; }

/* ---------- 表单 ---------- */
.form { display: grid; gap: 16px; margin-top: 4px; }
.field { display: grid; gap: 6px; }
.field > label { font-size: 14px; font-weight: 600; }
.field .req { color: var(--accent); }
.field__hint { font-size: 12px; color: var(--muted-fg); }
.input,
.select,
.textarea {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--card);
  font-size: 16px;
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease);
  appearance: none;
}
.textarea { min-height: 104px; resize: vertical; line-height: 1.6; }
.select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235B6472' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 18px;
  padding-right: 40px;
}
.input::placeholder, .textarea::placeholder { color: #98A1B0; }
.input:focus, .select:focus, .textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(4, 120, 87, .16);
}
.input[aria-invalid="true"], .textarea[aria-invalid="true"] {
  border-color: #D92D20;
  box-shadow: 0 0 0 3px rgba(217, 45, 32, .12);
}
/* 常驻预留一行高度：错误提示出现/消失不改变按钮位置，避免点击落空 */
.error { display: block; font-size: 12px; line-height: 1.5; min-height: 1.5em; color: #D92D20; }
.checkbox { display: flex; align-items: flex-start; gap: 10px; font-size: 13px; color: var(--muted-fg); }
.checkbox input { width: 20px; height: 20px; margin: 0; accent-color: var(--accent); flex: none; }
.form__note { font-size: 12px; color: var(--muted-fg); text-align: center; }
.form-success {
  display: none;
  margin-top: 16px;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid rgba(4, 120, 87, .22);
  background: rgba(4, 120, 87, .06);
  color: var(--accent);
  font-size: 14px;
  font-weight: 500;
}
.form-success.is-on { display: block; }

/* ---------- 列表页 / 详情页 ---------- */
.page-hero {
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
}
.page-hero h1 {
  font-family: var(--display);
  font-size: 30px;
  line-height: 1.15;
  letter-spacing: -.02em;
  margin: 10px 0 8px;
}
.page-hero p { color: var(--muted-fg); font-size: 15px; }

.crumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted-fg);
  margin: 0 0 12px;
}
.crumb a:hover { color: var(--accent); }
.crumb svg { width: 12px; height: 12px; }

.feature-list { display: grid; gap: 12px; margin-top: 16px; }
.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  transition: border-color .2s var(--ease), transform .2s var(--ease);
}
.feature-item:hover { border-color: var(--accent-sec); transform: translateY(-2px); }
.feature-item__icon {
  width: 40px; height: 40px;
  flex: none;
  display: grid; place-items: center;
  border-radius: 12px;
  background: var(--muted);
  color: var(--accent);
}
.feature-item__icon svg { width: 20px; height: 20px; }
.feature-item h3 { font-family: var(--display); font-size: 17px; line-height: 1.3; }
.feature-item p { font-size: 13px; color: var(--muted-fg); line-height: 1.6; margin-top: 6px; }
.feature-item__tag {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted-fg);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 8px;
  white-space: nowrap;
}

.steps { display: grid; gap: 0; margin-top: 16px; counter-reset: step; }
.step {
  position: relative;
  padding: 0 0 20px 44px;
  counter-increment: step;
}
.step::before {
  content: counter(step);
  position: absolute;
  left: 0; top: 0;
  width: 30px; height: 30px;
  display: grid; place-items: center;
  border-radius: 10px;
  background: var(--muted);
  color: var(--accent);
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 500;
}
.step::after {
  content: "";
  position: absolute;
  left: 15px; top: 34px; bottom: 6px;
  width: 1px;
  background: var(--border);
}
.step:last-child { padding-bottom: 0; }
.step:last-child::after { display: none; }
.step h3 { font-size: 15px; font-weight: 600; line-height: 1.3; }
.step p { font-size: 14px; color: var(--muted-fg); line-height: 1.6; margin-top: 6px; }

.spec { margin-top: 12px; }
.spec div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.spec div:last-child { border-bottom: 0; }
.spec dt { color: var(--muted-fg); }
.spec dd { margin: 0; font-weight: 500; text-align: right; }

.faq { margin-top: 8px; }
.faq details {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--card);
  padding: 0 16px;
  margin-top: 8px;
}
.faq summary {
  list-style: none;
  cursor: pointer;
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 14px;
  font-weight: 600;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-family: var(--mono);
  color: var(--accent);
  font-size: 18px;
}
.faq details[open] summary::after { content: "–"; }
.faq p { padding: 0 0 14px; font-size: 14px; color: var(--muted-fg); }

.callout {
  margin-top: 16px;
  padding: 20px;
  border-radius: var(--radius);
  background: linear-gradient(120deg, var(--accent), var(--accent-sec));
  color: #fff;
}
.callout h2 { font-family: var(--display); font-size: 20px; line-height: 1.25; }
.callout p { font-size: 14px; color: rgba(255, 255, 255, .85); margin-top: 6px; }
.callout .btn { margin-top: 14px; background: #fff; color: var(--accent); box-shadow: none; }
.callout .btn:hover { transform: translateY(-1px); box-shadow: 0 6px 14px rgba(15, 23, 42, .18); }

.about-block { padding: 20px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--card); }
.about-block h2 { font-family: var(--display); font-size: 20px; }
.about-block p { margin-top: 8px; font-size: 14px; color: var(--muted-fg); }
.metrics { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-top: 16px; }
.metric { border: 1px solid var(--border); border-radius: 12px; padding: 14px; background: var(--muted); }
.metric b { display: block; font-family: var(--display); font-size: 22px; }
.metric span { font-family: var(--mono); font-size: 11px; color: var(--muted-fg); letter-spacing: .04em; }

.contact-list { display: grid; gap: 10px; margin-top: 14px; }
.contact-list a { display: flex; align-items: center; gap: 10px; min-height: 44px; font-size: 14px; }
.contact-list svg { width: 18px; height: 18px; color: var(--accent); flex: none; }
.contact-list a:hover { color: var(--accent); }

/* ---------- 底部标签栏 ---------- */
.tabbar {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 430px;
  z-index: 40;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 4px;
  padding: 8px 10px calc(8px + env(safe-area-inset-bottom));
  background: rgba(255, 255, 255, .86);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--border);
}
.tabbar a {
  display: grid;
  justify-items: center;
  gap: 2px;
  padding: 6px 0 4px;
  min-height: 48px;
  border-radius: 12px;
  font-size: 11px;
  color: var(--muted-fg);
  transition: color .2s var(--ease), background .2s var(--ease);
}
.tabbar svg { width: 21px; height: 21px; }
.tabbar a:hover { background: var(--muted); color: var(--fg); }
.tabbar a[aria-current="page"] { color: var(--accent); }
.tabbar a[aria-current="page"] svg { stroke-width: 2.2; }

/* ---------- 全屏菜单 ---------- */
.sheet {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: none;
  justify-content: center;
  background: rgba(15, 23, 42, .38);
}
.sheet.is-open { display: flex; }
.sheet__panel {
  width: 100%;
  max-width: 430px;
  max-height: 88vh;
  margin-top: auto;
  background: var(--card);
  border-radius: 24px 24px 0 0;
  padding: 20px 20px calc(24px + env(safe-area-inset-bottom));
  border-top: 1px solid var(--border);
  animation: sheetUp .32s var(--ease);
}
@keyframes sheetUp { from { transform: translateY(24px); opacity: .4; } to { transform: translateY(0); opacity: 1; } }
.sheet__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.sheet__head h2 { font-family: var(--display); font-size: 20px; }
.sheet nav { display: grid; gap: 6px; }
.sheet nav a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 48px;
  padding: 0 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  font-size: 15px;
  font-weight: 500;
}
.sheet nav a:hover { border-color: var(--accent); color: var(--accent); }
.sheet nav svg { width: 16px; height: 16px; color: var(--muted-fg); }
.sheet__foot { margin-top: 14px; display: grid; gap: 8px; }
.sheet__foot p { font-size: 12px; color: var(--muted-fg); text-align: center; }

/* ---------- 页脚 ---------- */
.site-foot {
  border-top: 1px solid var(--border);
  padding: 20px;
  background: var(--bg);
}
.site-foot__nav { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.site-foot__nav a { min-height: 44px; display: flex; align-items: center; font-size: 13px; color: var(--muted-fg); }
.site-foot__nav a:hover { color: var(--accent); }
.site-foot__legal {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  font-size: 12px;
  color: var(--muted-fg);
}
.site-foot__legal span { font-family: var(--mono); }

/* ---------- 入场动效 ---------- */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* ---------- 小屏适配 ---------- */
@media (max-width: 460px) {
  body { padding: 0; background: var(--bg); }
  .device { border: 0; border-radius: 0; box-shadow: none; max-width: 100%; }
  .statusbar { padding-left: 16px; padding-right: 16px; }
  .screen { padding-left: 16px; padding-right: 16px; }
  .appbar { padding-left: 16px; padding-right: 16px; }
  .tabbar { max-width: 100%; }
}

/* ---------- 桌面端（≥1024px） ---------- */
.desk-nav,
.desk-cta { display: none; }

@media (min-width: 1024px) {
  body {
    padding: 0;
    background: var(--bg);
  }

  /* 手机框退场，变为全宽页面 */
  .device {
    max-width: none;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    border: 0;
    border-radius: 0;
    box-shadow: none;
  }
  .statusbar,
  .home-indicator,
  .tabbar { display: none; }

  /* 顶栏：品牌 + 横向导航 + 联系按钮 */
  .appbar {
    gap: 36px;
    min-height: 72px;
    padding: 0 max(32px, calc((100vw - 1240px) / 2 + 32px));
    background: rgba(250, 250, 250, .9);
  }
  .brand { min-height: 72px; gap: 10px; }
  .brand__mark { width: 34px; height: 34px; border-radius: 11px; }
  .brand__name { font-size: 19px; }

  .desk-nav { display: flex; align-items: center; gap: 2px; }
  .desk-nav a {
    display: inline-flex;
    align-items: center;
    min-height: 40px;
    padding: 0 13px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 500;
    color: var(--muted-fg);
    transition: color .2s var(--ease), background .2s var(--ease);
  }
  .desk-nav a:hover { color: var(--fg); background: var(--muted); }
  .desk-nav a[aria-current="page"] { color: var(--accent); background: rgba(4, 120, 87, .08); }

  .appbar__actions { gap: 10px; }
  .desk-cta {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding: 0 22px;
    font-size: 14px;
  }
  [data-sheet-open] { display: none; }

  /* 内容容器 */
  .page-body {
    flex: 1;
    width: 100%;
    max-width: 1240px;
    margin: 0 auto;
    padding: 44px 32px 80px;
  }
  .screen { padding: 0; }
  .screen + .screen { margin-top: 72px; }

  /* Hero：左文案 + 右数据 */
  .hero {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(240px, .85fr);
    grid-template-rows: auto auto auto 1fr;
    column-gap: 64px;
    padding: 56px;
    border-radius: 24px;
  }
  .hero::after { width: 260px; height: 260px; right: -70px; top: -70px; }
  .hero .eyebrow { grid-column: 1; }
  .hero h1 { grid-column: 1; font-size: 56px; margin: 18px 0 16px; }
  .hero p { grid-column: 1; font-size: 17px; max-width: 30em; }
  .hero__cta {
    grid-column: 1;
    grid-row: 4;
    display: flex;
    gap: 12px;
    align-self: end;
    margin-top: 32px;
  }
  .hero__cta .btn--block { width: auto; padding: 0 28px; }
  .hero__stats {
    grid-column: 2;
    grid-row: 1 / span 4;
    grid-template-columns: 1fr;
    align-content: center;
    gap: 0;
    margin: 0;
    padding: 8px 0 8px 48px;
    border-top: 0;
    border-left: 1px solid var(--border);
  }
  .hero__stats > div { padding: 22px 0; }
  .hero__stats > div + div { border-top: 1px solid var(--border); }
  .hero__stats dt { font-size: 12px; }
  .hero__stats dd { font-size: 34px; margin-top: 4px; }

  /* 区块标题 */
  .section-head h2 { font-size: 32px; }
  .section-head { margin-bottom: 8px; }
  .section-note { font-size: 15px; }

  /* 能力卡片：一行四张 */
  .cards { grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 24px; }
  .card { padding: 26px 22px; }
  .card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
  .card h3 { font-size: 19px; }

  /* 控件区：左右两栏 */
  .page-body section[aria-labelledby="control-title"] {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    align-items: start;
  }
  .page-body section[aria-labelledby="control-title"] > .section-head { grid-column: 1 / -1; }
  .panel { padding: 26px; }
  .panel + .panel { margin-top: 0; }
  .btn-row { grid-template-columns: repeat(2, 1fr); }
  .btn-row .btn--ghost { grid-column: 1 / -1; justify-self: start; }

  /* 预约区：左说明 + 右表单 */
  #booking {
    display: grid;
    grid-template-columns: minmax(0, 360px) minmax(0, 1fr);
    gap: 24px 64px;
    align-items: start;
  }
  #booking > .section-head { grid-column: 1; }
  #booking > .section-note { grid-column: 1; margin-top: 0; }
  #booking > .panel {
    grid-column: 2;
    grid-row: 1 / span 2;
    margin-top: 0 !important;
    padding: 32px;
  }
  .form { grid-template-columns: 1fr 1fr; gap: 18px 20px; }
  .form .field:nth-of-type(3),
  .form .field:nth-of-type(4),
  .form .checkbox,
  .form .btn,
  .form__note,
  .form-success { grid-column: 1 / -1; }

  /* 底部引导 */
  .callout {
    display: grid;
    grid-template-columns: 1fr auto;
    grid-template-rows: auto auto;
    gap: 8px 48px;
    align-items: center;
    margin-top: 0;
    padding: 48px 56px;
    border-radius: 24px;
  }
  .callout h2 { font-size: 34px; }
  .callout p { font-size: 15px; max-width: 34em; grid-column: 1; }
  .callout .btn {
    grid-column: 2;
    grid-row: 1 / span 2;
    margin-top: 0;
    padding: 0 30px;
  }

  /* 页脚 */
  .site-foot {
    padding: 32px max(32px, calc((100vw - 1240px) / 2 + 32px)) 40px;
  }
  .site-foot__nav {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 28px;
  }
  .site-foot__nav a { min-height: 32px; font-size: 14px; }
  .site-foot__legal { margin-top: 20px; padding-top: 16px; gap: 6px 24px; }

  /* 内容页通用 */
  .page-hero { padding: 40px 48px; }
  .page-hero h1 { font-size: 42px; }
  .page-hero p { font-size: 16px; }
  .feature-list { grid-template-columns: repeat(2, 1fr); gap: 20px; margin-top: 24px; }
  .feature-item { padding: 24px; }
  .about-block { padding: 32px 40px; }
  .about-block h2 { font-size: 26px; }
  .metrics { grid-template-columns: repeat(4, 1fr); }
  .callout + * { margin-top: 0; }
}