:root {
  --bg: #fff7f1;
  --surface: #ffffff;
  --primary: #ff6b00;
  --primary-2: #ff9326;
  --text: #2c2c2c;
  --text-secondary: #6b6b6b;
  --border: rgba(0, 0, 0, 0.08);
  --shadow: 0 10px 18px rgba(0, 0, 0, 0.08);
  --radius: 16px;
  --font-size-base: 18px;
  --font-large: 22px;
  --font-xl: 26px;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "Noto Sans", sans-serif;
  background: linear-gradient(180deg, #ffb86c 0%, #ffe3c0 100%);
  color: var(--text);
}

body {
  overflow-x: hidden;
}

.app {
  max-width: 480px;
  margin: 0 auto;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding-bottom: 24px;
}

.app__header {
  position: sticky;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 18px 12px;
  background: rgba(255, 255, 255, 0.85);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  backdrop-filter: blur(12px);
}

.app__title {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 1px;
}

.icon-btn {
  border: none;
  background: none;
  padding: 0;
  cursor: pointer;
}

.app__avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(0, 0, 0, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.95);
}

.icon-avatar {
  width: 22px;
  height: 22px;
  display: inline-block;
  background: url('data:image/svg+xml,%3Csvg width="20" height="20" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg"%3E%3Cpath d="M12 12C14.7614 12 17 9.76142 17 7C17 4.23858 14.7614 2 12 2C9.23858 2 7 4.23858 7 7C7 9.76142 9.23858 12 12 12Z" stroke="%23FF6B00" stroke-width="2"%3E%3C/path%3E%3Cpath d="M4 22C4 17.5817 7.58172 14 12 14C16.4183 14 20 17.5817 20 22" stroke="%23FF6B00" stroke-width="2"%3E%3C/path%3E%3C/svg%3E') no-repeat center;
}

.page {
  padding: 12px 16px 0;
  flex: 1;
  width: 100%;
}

.card {
  background: rgba(255, 255, 255, 0.9);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  margin-bottom: 14px;
}

.card--service .card__title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--primary);
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.tile {
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 16px;
  padding: 16px 10px;
  background: rgba(255, 255, 255, 0.95);
  text-align: center;
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 180ms ease;
  outline: none;
}

.tile:active,
.tile:focus {
  transform: translateY(2px);
  box-shadow: 0 10px 18px rgba(0, 0, 0, 0.12);
}

.tile__icon {
  display: block;
  font-size: 32px;
  margin-bottom: 8px;
}

.tile__label {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.3;
}

.card--hotline {
  text-align: center;
  padding: 18px 16px;
}

.card--hotline .card__label {
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.btn--hotline {
  border: none;
  width: 100%;
  max-width: 320px;
  border-radius: 50px;
  padding: 14px 18px;
  font-weight: 700;
  font-size: 22px;
  background: linear-gradient(90deg, var(--primary), var(--primary-2));
  color: white;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  box-shadow: 0 10px 18px rgba(255, 107, 0, 0.25);
  cursor: pointer;
}

.hotline__icon {
  font-size: 22px;
}

.card--action {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.btn {
  border: none;
  cursor: pointer;
  border-radius: 999px;
  padding: 14px 18px;
  font-size: 20px;
  font-weight: 700;
  text-align: center;
  transition: transform 120ms ease, box-shadow 120ms ease;
}

.btn--primary {
  background: linear-gradient(90deg, #ff6b00, #ff9326);
  color: white;
  box-shadow: 0 12px 18px rgba(255, 107, 0, 0.25);
}

.btn--primary:active,
.btn--primary:focus {
  transform: scale(0.99);
}

.subheader {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px 16px;
  background: rgba(255, 255, 255, 0.85);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  position: sticky;
  top: 0;
  z-index: 10;
}

.btn--back {
  padding: 10px 14px;
  border-radius: 14px;
  border: 1px solid rgba(0, 0, 0, 0.12);
  background: rgba(255, 255, 255, 0.95);
  font-size: 18px;
  color: var(--text);
  box-shadow: 0 8px 14px rgba(0, 0, 0, 0.08);
}

.subheader__title {
  font-size: 22px;
  font-weight: 700;
  margin: 0;
  flex: 1;
  text-align: center;
  color: var(--primary);
}

.list {
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.list__item {
  border-radius: 16px;
  border: 1px solid rgba(0, 0, 0, 0.08);
  padding: 16px 14px;
  background: rgba(255, 255, 255, 0.95);
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  text-decoration: none;
  display: block;
}

.list__item:active,
.list__item:focus {
  transform: translateY(1px);
  box-shadow: 0 12px 20px rgba(0, 0, 0, 0.1);
}

@media (max-width: 420px) {
  .app__title {
    font-size: 22px;
  }

  .tile__label {
    font-size: 18px;
  }

  .btn {
    font-size: 18px;
    padding: 12px 16px;
  }

  .subheader__title {
    font-size: 20px;
  }

  .list__item {
    font-size: 16px;
  }
}