@charset "UTF-8";
/* ==========================================================
   暖心 healbox.cn 官网样式
   设计基调：温暖关怀 —— 米白底 + 青绿主色 + 暖橙点缀
   目标用户：长辈本人 + 45 岁以上异地子女
   字号偏大、对比度高、点击区域大
   ========================================================== */

/* ---------- 1. 设计令牌 ---------- */
:root {
  /* 品牌色（取自 App color_config.dart） */
  --brand:        #00CFCB;
  --brand-dark:   #00A8A5;
  --brand-deep:   #00807E;
  --brand-light:  #E6FBFA;
  --brand-soft:   #F2FDFD;
  --warm:         #FFAF47;
  --warm-light:   #FFF4E4;
  --coral:        #FF684E;

  /* 中性色 */
  --bg:           #FDFBF7;
  --bg-alt:       #F5F6FA;
  --surface:      #FFFFFF;
  --line:         #ECE8E0;
  --line-soft:    #F3F0EA;

  /* 文字色 —— 对比度均≥ 4.5:1 */
  --ink:          #2B2B2B;
  --ink-2:        #4A4A4A;
  --ink-3:        #6E6A65;
  --ink-4:        #9A958E;
  --on-brand:     #FFFFFF;

  /* 圆角 */
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 24px;
  --r-xl: 32px;
  --r-full: 999px;

  /* 阴影 —— 柔和不刺眼 */
  --sh-sm: 0 2px 8px rgba(43, 43, 43, 0.05);
  --sh-md: 0 6px 20px rgba(43, 43, 43, 0.07);
  --sh-lg: 0 16px 44px rgba(43, 43, 43, 0.10);
  --sh-brand: 0 10px 30px rgba(0, 207, 203, 0.28);

  /* 布局 */
  --wrap: 1180px;
  --nav-h: 72px;

  /* 动效 */
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- 2. 基础重置 ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 16px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC",
               "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC",
               "Noto Sans CJK SC", sans-serif;
  font-size: 17px;
  line-height: 1.8;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.01em;
}

p { margin: 0; }

:focus-visible {
  outline: 3px solid var(--brand);
  outline-offset: 3px;
  border-radius: 6px;
}

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

/* ---------- 3. 布局容器 ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 96px 0; }
.section--alt { background: var(--bg-alt); }
.section--tight { padding: 64px 0; }

/* 区块标题 */
.sec-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }

.sec-head__eyebrow {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--brand-deep);
  background: var(--brand-light);
  padding: 7px 18px;
  border-radius: var(--r-full);
  margin-bottom: 18px;
}

.sec-head__title {
  font-size: clamp(28px, 4vw, 40px);
  color: var(--ink);
  margin-bottom: 16px;
}

.sec-head__desc {
  font-size: 18px;
  color: var(--ink-3);
  line-height: 1.75;
}

/* ---------- 4. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 56px;                 /* 大点击区，适合长辈 */
  padding: 0 32px;
  font-size: 18px;
  font-weight: 600;
  border: 2px solid transparent;
  border-radius: var(--r-full);
  transition: transform .25s var(--ease), box-shadow .25s var(--ease),
              background-color .25s var(--ease), color .25s var(--ease);
  white-space: nowrap;
}

.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: linear-gradient(135deg, #22DCD8, var(--brand));
  color: var(--on-brand);
  box-shadow: var(--sh-brand);
}
.btn--primary:hover { box-shadow: 0 14px 38px rgba(0, 207, 203, 0.4); }

.btn--ghost {
  background: var(--surface);
  color: var(--ink);
  border-color: var(--line);
}
.btn--ghost:hover { border-color: var(--brand); color: var(--brand-deep); }

.btn--warm {
  background: var(--warm);
  color: #4A2F00;
  box-shadow: 0 10px 28px rgba(255, 175, 71, 0.34);
}

.btn--sm { min-height: 46px; padding: 0 24px; font-size: 16px; }
.btn--block { width: 100%; }

/* ---------- 5. 顶部导航 ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  background: rgba(253, 251, 247, 0.86);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.nav.is-stuck {
  border-bottom-color: var(--line);
  box-shadow: var(--sh-sm);
}

.nav__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav__brand { display: flex; align-items: center; gap: 12px; }

.nav__logo {
  width: 42px; height: 42px;
  border-radius: 13px;
  background: linear-gradient(135deg, #22DCD8, var(--brand-dark));
  display: grid; place-items: center;
  color: #fff; font-size: 22px;
  box-shadow: var(--sh-brand);
  flex-shrink: 0;
}

.nav__name {
  font-size: 21px;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.nav__name small {
  display: block;
  font-size: 11px;
  font-weight: 500;
  color: var(--ink-4);
  letter-spacing: 0.16em;
  line-height: 1.2;
  text-transform: uppercase;
}

.nav__links { display: flex; align-items: center; gap: 4px; list-style: none; margin: 0; padding: 0; }

.nav__links a {
  display: block;
  padding: 10px 16px;
  font-size: 16px;
  font-weight: 500;
  color: var(--ink-2);
  border-radius: var(--r-full);
  transition: color .2s var(--ease), background-color .2s var(--ease);
}
.nav__links a:hover { color: var(--brand-deep); background: var(--brand-light); }

.nav__cta { display: flex; align-items: center; gap: 12px; }

.nav__toggle {
  display: none;
  width: 46px; height: 46px;
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 12px;
  color: var(--ink);
  padding: 0;
  place-items: center;
}
.nav__toggle span {
  display: block; width: 20px; height: 2px;
  background: currentColor; border-radius: 2px;
  transition: transform .3s var(--ease), opacity .2s var(--ease);
}
.nav__toggle span + span { margin-top: 5px; }
.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 6. 首屏 Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding: 84px 0 96px;
  background:
    radial-gradient(1100px 520px at 82% -8%,  rgba(0, 207, 203, .17), transparent 62%),
    radial-gradient(760px 420px at 6% 108%,  rgba(255, 175, 71, .15), transparent 60%),
    var(--bg);
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.06fr .94fr;
  gap: 64px;
  align-items: center;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 18px 9px 10px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-full);
  font-size: 14.5px;
  font-weight: 500;
  color: var(--ink-2);
  box-shadow: var(--sh-sm);
  margin-bottom: 28px;
}
.hero__badge b {
  background: var(--coral);
  color: #fff;
  font-size: 12.5px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: var(--r-full);
  letter-spacing: .04em;
}

.hero__title {
  font-size: clamp(34px, 5.6vw, 62px);
  line-height: 1.18;
  letter-spacing: -0.025em;
  margin-bottom: 22px;
}
.hero__title em {
  font-style: normal;
  background: linear-gradient(120deg, var(--brand-dark), var(--brand) 55%, #22DCD8);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: var(--brand-deep);           /* 降级色 */
}

.hero__slogan {
  font-size: clamp(18px, 2.2vw, 23px);
  font-weight: 600;
  color: var(--brand-deep);
  margin-bottom: 18px;
}

.hero__desc {
  font-size: 18px;
  color: var(--ink-3);
  line-height: 1.85;
  max-width: 33em;
  margin-bottom: 34px;
}

.hero__actions { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 46px; }

.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
}
.hero__stats dt {
  font-size: clamp(26px, 3.2vw, 34px);
  font-weight: 700;
  color: var(--brand-deep);
  line-height: 1.2;
}
.hero__stats dd {
  margin: 4px 0 0;
  font-size: 14.5px;
  color: var(--ink-3);
}

/* Hero 视觉：手机 + 卡片 */
.hero__visual { position: relative; display: grid; place-items: center; min-height: 520px; }

.hero__blob {
  position: absolute;
  width: 460px; height: 460px;
  border-radius: 46% 54% 58% 42% / 48% 44% 56% 52%;
  background: linear-gradient(140deg, rgba(0, 207, 203, .22), rgba(255, 175, 71, .18));
  filter: blur(6px);
  animation: float 9s ease-in-out infinite;
  z-index: 0;
}

.phone {
  position: relative;
  z-index: 2;
  width: 288px;
  padding: 11px;
  background: #1D1D1F;
  border-radius: 40px;
  box-shadow: 0 30px 70px rgba(43, 43, 43, .26), 0 0 0 1px rgba(255,255,255,.09) inset;
  animation: float 7s ease-in-out infinite .5s;
}
.phone__screen {
  background: var(--bg-alt);
  border-radius: 31px;
  overflow: hidden;
  aspect-ratio: 9 / 18.4;
  display: flex;
  flex-direction: column;
}
.phone__notch {
  height: 26px;
  background: #1D1D1F;
  border-radius: 0 0 16px 16px;
  margin: -11px -11px 0;
  position: relative;
  z-index: 3;
  flex-shrink: 0;
}
.phone__bar {
  height: 46px;
  background: linear-gradient(135deg, var(--brand), var(--brand-dark));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 15px;
  font-size: 14px;
  font-weight: 600;
  flex-shrink: 0;
}
.phone__body { flex: 1; padding: 13px; display: flex; flex-direction: column; gap: 10px; overflow: hidden; }

.phone__card {
  background: #fff;
  border-radius: 13px;
  padding: 11px 12px;
  box-shadow: var(--sh-sm);
}
.phone__card--accent { background: linear-gradient(135deg, #22DCD8, var(--brand-dark)); color: #fff; }
.phone__card h4 { font-size: 13.5px; margin-bottom: 5px; }
.phone__card p { font-size: 11.5px; color: var(--ink-3); line-height: 1.55; }
.phone__card--accent p { color: rgba(255, 255, 255, .9); }

.phone__pills { display: flex; gap: 6px; flex-wrap: wrap; }
.phone__pill {
  font-size: 11px;
  padding: 4px 9px;
  border-radius: var(--r-full);
  background: var(--brand-light);
  color: var(--brand-deep);
  font-weight: 500;
}

/* 悬浮小卡 */
.float-card {
  position: absolute;
  z-index: 3;
  background: var(--surface);
  border-radius: var(--r-md);
  padding: 14px 18px;
  box-shadow: var(--sh-lg);
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 250px;
  animation: float 6s ease-in-out infinite;
}
.float-card__icon {
  width: 40px; height: 40px;
  border-radius: 12px;
  display: grid; place-items: center;
  font-size: 19px;
  flex-shrink: 0;
}
.float-card strong { display: block; font-size: 15px; line-height: 1.35; }
.float-card span { font-size: 12.5px; color: var(--ink-3); }

.float-card--tl { top: 8px; left: -14px; animation-delay: .2s; }
.float-card--br { bottom: 52px; right: -12px; animation-delay: 1.1s; }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-14px); }
}

/* ---------- 7. 通用卡片网格 ---------- */
.grid { display: grid; gap: 26px; }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.card {
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  padding: 34px 30px;
  box-shadow: var(--sh-sm);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease),
              border-color .3s var(--ease);
}
.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--sh-md);
  border-color: var(--brand-light);
}

.card__icon {
  width: 58px; height: 58px;
  border-radius: 17px;
  display: grid; place-items: center;
  font-size: 26px;
  margin-bottom: 20px;
  background: var(--brand-light);
}
.card__icon--warm { background: var(--warm-light); }
.card__icon--coral { background: #FFEDE9; }

.card h3 { font-size: 21px; margin-bottom: 10px; }
.card p  { font-size: 16px; color: var(--ink-3); line-height: 1.8; }

/* ---------- 8. 角色三端 ---------- */
.roles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }

.role {
  background: var(--surface);
  border-radius: var(--r-lg);
  padding: 40px 32px;
  text-align: center;
  border: 2px solid transparent;
  transition: all .3s var(--ease);
}
.role:hover { transform: translateY(-6px); box-shadow: var(--sh-lg); }

.role--family { border-color: #D6F4F3; }
.role--elder  { border-color: #FFE6C4; }
.role--staff  { border-color: #DCE6FB; }

.role__avatar {
  width: 88px; height: 88px;
  border-radius: 50%;
  margin: 0 auto 20px;
  display: grid; place-items: center;
  font-size: 40px;
}
.role--family .role__avatar { background: var(--brand-light); }
.role--elder  .role__avatar { background: var(--warm-light); }
.role--staff  .role__avatar { background: #E8F0FE; }

.role h3 { font-size: 23px; margin-bottom: 8px; }
.role__tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  padding: 4px 13px;
  border-radius: var(--r-full);
  margin-bottom: 14px;
}
.role--family .role__tag { background: var(--brand-light); color: var(--brand-deep); }
.role--elder  .role__tag { background: var(--warm-light);  color: #A35A00; }
.role--staff  .role__tag { background: #E8F0FE;          color: #2F5DB0; }

.role p { font-size: 16px; color: var(--ink-3); line-height: 1.8; margin-bottom: 18px; }

.role__list {
  list-style: none;
  margin: 0; padding: 0;
  text-align: left;
  display: flex; flex-direction: column; gap: 9px;
}
.role__list li {
  font-size: 15px;
  color: var(--ink-2);
  padding-left: 26px;
  position: relative;
  line-height: 1.65;
}
.role__list li::before {
  content: "✓";
  position: absolute; left: 0; top: 0;
  font-weight: 700;
  color: var(--brand);
}

/* ---------- 9. 功能特性（交错图文） ---------- */
.feature { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: center; }
.feature + .feature { margin-top: 110px; }
.feature--flip .feature__media { order: -1; }

.feature__eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 14px; font-weight: 600;
  color: var(--brand-deep);
  background: var(--brand-light);
  padding: 6px 15px;
  border-radius: var(--r-full);
  margin-bottom: 16px;
}
.feature h2 { font-size: clamp(26px, 3.4vw, 36px); margin-bottom: 18px; }
.feature__lead { font-size: 17.5px; color: var(--ink-3); line-height: 1.85; margin-bottom: 26px; }

.feature__points { list-style: none; margin: 0 0 30px; padding: 0; display: flex; flex-direction: column; gap: 14px; }
.feature__points li {
  display: flex; gap: 13px;
  font-size: 16.5px;
  color: var(--ink-2);
  line-height: 1.7;
}
.feature__points li::before {
  content: "";
  flex-shrink: 0;
  width: 22px; height: 22px;
  margin-top: 3px;
  border-radius: 50%;
  background: var(--brand-light) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2300A8A5' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center/13px no-repeat;
}

/* 功能示意图（纯 CSS 绘制，无需图片素材） */
.feature__media { display: grid; place-items: center; }

.mock {
  width: 100%;
  max-width: 430px;
  background: var(--surface);
  border-radius: var(--r-lg);
  box-shadow: var(--sh-lg);
  overflow: hidden;
  border: 1px solid var(--line-soft);
}
.mock__head {
  padding: 16px 22px;
  border-bottom: 1px solid var(--line-soft);
  display: flex; align-items: center; justify-content: space-between;
  font-weight: 600; font-size: 15.5px;
}
.mock__head span { font-size: 13px; color: var(--ink-4); font-weight: 500; }
.mock__body { padding: 18px 22px 24px; display: flex; flex-direction: column; gap: 12px; }

.mock__row {
  display: flex; align-items: center; gap: 13px;
  padding: 13px 15px;
  border-radius: var(--r-sm);
  background: var(--bg-alt);
}
.mock__row strong { font-size: 15px; display: block; }
.mock__row small { font-size: 12.5px; color: var(--ink-4); }
.mock__dot {
  width: 38px; height: 38px; border-radius: 12px;
  display: grid; place-items: center; font-size: 18px; flex-shrink: 0;
}
.mock__badge {
  margin-left: auto;
  font-size: 12px; font-weight: 600;
  padding: 4px 11px;
  border-radius: var(--r-full);
  white-space: nowrap;
}

.badge--ok   { background: #E4F8F1; color: #12805C; }
.badge--warn { background: var(--warm-light); color: #A35A00; }
.badge--dead { background: #FFE9E6; color: #C43A22; }
.badge--info { background: var(--brand-light); color: var(--brand-deep); }

/* ---------- 10. 服务与价格 ---------- */
.price-tabs { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-bottom: 44px; }

.price-tab {
  min-height: 50px;
  padding: 0 26px;
  font-size: 16.5px;
  font-weight: 600;
  color: var(--ink-2);
  background: var(--surface);
  border: 2px solid var(--line);
  border-radius: var(--r-full);
  transition: all .25s var(--ease);
}
.price-tab:hover { border-color: var(--brand); color: var(--brand-deep); }
.price-tab[aria-selected="true"] {
  background: linear-gradient(135deg, #22DCD8, var(--brand-dark));
  color: #fff;
  border-color: transparent;
  box-shadow: var(--sh-brand);
}

.price-panel { display: none; }
.price-panel.is-active { display: block; animation: fadeUp .45s var(--ease); }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

.price-intro {
  text-align: center;
  font-size: 16.5px;
  color: var(--ink-3);
  margin-bottom: 28px;
}

.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
/* 助餐 3 档、慢病 3 档为满行；陪诊/陪伴为 3~4 档自动换行 */
.price-grid:has(> .price-card:nth-child(4):last-child) { grid-template-columns: repeat(4, 1fr); }

.price-card {
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  padding: 30px 26px;
  box-shadow: var(--sh-sm);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
  display: flex; flex-direction: column;
}
.price-card:hover { transform: translateY(-5px); box-shadow: var(--sh-md); }

.price-card__name { font-size: 19px; margin-bottom: 8px; }
.price-card__desc { font-size: 14.5px; color: var(--ink-3); line-height: 1.7; margin-bottom: 20px; min-height: 3.4em; }

.price-card__amount {
  font-size: 40px;
  font-weight: 700;
  color: var(--brand-deep);
  line-height: 1;
  margin-bottom: 4px;
}
.price-card__amount small { font-size: 15px; font-weight: 500; color: var(--ink-4); margin-left: 3px; }
.price-card__unit { font-size: 13.5px; color: var(--ink-4); margin-bottom: 22px; }

.price-card__list {
  list-style: none; margin: 0; padding: 0;
  display: flex; flex-direction: column; gap: 9px;
  padding-top: 20px;
  border-top: 1px dashed var(--line);
}
.price-card__list li {
  font-size: 14.5px;
  color: var(--ink-2);
  padding-left: 22px;
  position: relative;
  line-height: 1.6;
}
.price-card__list li::before {
  content: "·";
  position: absolute; left: 8px; top: -1px;
  font-size: 19px; color: var(--brand); font-weight: 700;
}

.price-note {
  margin-top: 34px;
  background: var(--warm-light);
  border-left: 4px solid var(--warm);
  border-radius: var(--r-sm);
  padding: 20px 24px;
  font-size: 15px;
  color: #7A4A00;
  line-height: 1.8;
}
.price-note strong { color: #5A3600; }

/* ---------- 11. 流程时间轴 ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative; }
.steps::before {
  content: "";
  position: absolute;
  top: 34px; left: 12%; right: 12%;
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--brand) 0 8px, transparent 8px 16px);
  opacity: .45;
  z-index: 0;
}

.step { text-align: center; position: relative; z-index: 1; }
.step__num {
  width: 68px; height: 68px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: var(--surface);
  border: 3px solid var(--brand);
  color: var(--brand-deep);
  display: grid; place-items: center;
  font-size: 25px; font-weight: 700;
  box-shadow: var(--sh-sm);
}
.step h3 { font-size: 19px; margin-bottom: 9px; }
.step p { font-size: 15px; color: var(--ink-3); line-height: 1.75; }

/* ---------- 12. 长辈端适老化展示 ---------- */
.elder-band {
  background: linear-gradient(135deg, #12807E, var(--brand-dark) 55%, #0B6B69);
  color: #fff;
  border-radius: var(--r-xl);
  padding: 66px 60px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 48px;
  align-items: center;
  position: relative;
  overflow: hidden;
}
.elder-band::after {
  content: "";
  position: absolute;
  right: -80px; top: -80px;
  width: 340px; height: 340px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .07);
}
.elder-band h2 { font-size: clamp(26px, 3.4vw, 36px); margin-bottom: 16px; }
.elder-band p { font-size: 17px; color: rgba(255, 255, 255, .9); line-height: 1.85; max-width: 34em; }
.elder-band__kicker {
  font-size: 14px; font-weight: 600;
  letter-spacing: .12em;
  color: rgba(255, 255, 255, .78);
  margin-bottom: 12px;
}
.elder-btns { display: grid; grid-template-columns: repeat(2, 148px); gap: 16px; flex-shrink: 0; position: relative; z-index: 1; }
.elder-btn {
  background: rgba(255, 255, 255, .16);
  border: 2px solid rgba(255, 255, 255, .3);
  border-radius: var(--r-md);
  padding: 20px 12px;
  text-align: center;
  font-size: 17px; font-weight: 600;
  transition: all .25s var(--ease);
}
.elder-btn span { display: block; font-size: 30px; margin-bottom: 8px; }
.elder-btn:hover { background: #fff; color: var(--brand-deep); border-color: #fff; transform: translateY(-3px); }

/* ---------- 13. 下载区 ---------- */
.download { display: grid; grid-template-columns: 1fr auto; gap: 60px; align-items: center; }

.qr-box {
  background: var(--surface);
  border-radius: var(--r-xl);
  padding: 34px;
  box-shadow: var(--sh-lg);
  text-align: center;
  border: 1px solid var(--line-soft);
}
.qr-box__frame {
  width: 210px; height: 210px;
  margin: 0 auto 18px;
  border-radius: var(--r-md);
  border: 1px solid var(--line-soft);
  background: #fff;
  display: grid; place-items: center;
  text-align: center;
  padding: 10px;
  box-shadow: var(--sh-sm);
}
/* 二维码图片：铺满框内并保持方形，不被拉伸 */
.qr-box__frame img {
  width: 100%; height: 100%;
  object-fit: contain;
  display: block;
  border-radius: 4px;
}
.qr-box__frame strong { display: block; font-size: 15px; color: var(--brand-deep); margin-bottom: 6px; }
.qr-box__frame small { font-size: 12.5px; color: var(--ink-4); line-height: 1.6; }
.qr-box h3 { font-size: 21px; margin-bottom: 6px; }
.qr-box p { font-size: 15px; color: var(--ink-3); }

.store-badges { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 26px; }
.store-badge {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 11px 20px;
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  font-size: 14.5px;
  color: var(--ink-3);
}
.store-badge b { color: var(--ink); font-size: 15px; }

/* ---------- 14. FAQ ---------- */
.faq { max-width: 860px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }

.faq__item {
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  overflow: hidden;
  transition: box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.faq__item[open] { box-shadow: var(--sh-md); border-color: var(--brand-light); }

.faq__q {
  display: flex; align-items: center; justify-content: space-between;
  gap: 18px;
  padding: 22px 26px;
  font-size: 17.5px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  min-height: 68px;
}
.faq__q::-webkit-details-marker { display: none; }
.faq__q::after {
  content: "";
  flex-shrink: 0;
  width: 26px; height: 26px;
  border-radius: 50%;
  background: var(--brand-light);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2300A8A5' stroke-width='3' stroke-linecap='round'%3E%3Cpath d='M12 5v14M5 12h14'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 14px;
  transition: transform .3s var(--ease);
}
.faq__item[open] .faq__q::after { transform: rotate(135deg); }
.faq__q:hover { background: var(--brand-soft); }

.faq__a { padding: 0 26px 24px; font-size: 16px; color: var(--ink-3); line-height: 1.85; }

/* ---------- 15. 联系区 ---------- */
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }

.contact-card {
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  padding: 38px 34px;
  box-shadow: var(--sh-sm);
}
.contact-card h3 { font-size: 21px; margin-bottom: 10px; }
.contact-card > p { font-size: 15.5px; color: var(--ink-3); margin-bottom: 24px; }

.contact-item {
  display: flex; align-items: center; gap: 15px;
  padding: 16px 0;
  border-top: 1px solid var(--line-soft);
}
.contact-item__icon {
  width: 46px; height: 46px;
  border-radius: 13px;
  background: var(--brand-light);
  display: grid; place-items: center;
  font-size: 21px;
  flex-shrink: 0;
}
.contact-item strong { display: block; font-size: 14px; color: var(--ink-4); font-weight: 500; }
.contact-item a, .contact-item span { font-size: 18px; font-weight: 600; color: var(--ink); }
.contact-item a:hover { color: var(--brand-deep); }

/* ---------- 16. 服务人员招募 ---------- */
.join-banner {
  background: linear-gradient(120deg, #FFF9F0, #FFF4E4);
  border: 1px solid #FFE2BC;
  border-radius: var(--r-xl);
  padding: 58px 56px;
  display: grid; grid-template-columns: 1fr auto;
  gap: 44px; align-items: center;
}
.join-banner h2 { font-size: clamp(25px, 3.2vw, 33px); margin-bottom: 14px; }
.join-banner p { font-size: 16.5px; color: #7A5A28; line-height: 1.85; }
.join-banner ul {
  list-style: none; margin: 22px 0 0; padding: 0;
  display: flex; flex-wrap: wrap; gap: 10px;
}
.join-banner li {
  font-size: 14.5px; font-weight: 500;
  background: #fff;
  border: 1px solid #FFE2BC;
  color: #8A5A12;
  padding: 7px 16px;
  border-radius: var(--r-full);
}

/* ---------- 17. 页脚 ---------- */
.footer {
  background: #1E2A2C;
  color: rgba(255, 255, 255, .72);
  padding: 68px 0 32px;
  font-size: 15px;
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 44px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, .12);
}
.footer__brand { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.footer__brand .nav__logo { box-shadow: none; }
.footer__brand strong { font-size: 21px; color: #fff; }
.footer__about { line-height: 1.85; max-width: 24em; margin-bottom: 22px; }

.footer__social { display: flex; gap: 12px; }
.footer__social a {
  width: 42px; height: 42px;
  border-radius: 12px;
  background: rgba(255, 255, 255, .08);
  display: grid; place-items: center;
  font-size: 19px;
  transition: background-color .25s var(--ease), transform .25s var(--ease);
}
.footer__social a:hover { background: var(--brand); transform: translateY(-3px); }

.footer h4 { color: #fff; font-size: 16px; margin-bottom: 18px; }
.footer__links { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.footer__links a { transition: color .2s var(--ease); }
.footer__links a:hover { color: var(--brand); }

.footer__bottom {
  padding-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 26px;
  align-items: center;
  justify-content: space-between;
  font-size: 14px;
  color: rgba(255, 255, 255, .55);
}
.footer__legal { display: flex; flex-wrap: wrap; gap: 10px 20px; }
.footer__legal a:hover { color: var(--brand); }

/* ---------- 18. 法律文档页 ---------- */
.page-head {
  background:
    radial-gradient(760px 340px at 78% -12%, rgba(0, 207, 203, .16), transparent 62%),
    var(--bg);
  padding: 68px 0 52px;
  border-bottom: 1px solid var(--line-soft);
}
.page-head h1 { font-size: clamp(28px, 4vw, 40px); margin-bottom: 12px; }
.page-head p { font-size: 16px; color: var(--ink-3); }
.page-head__meta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.page-head__chip {
  font-size: 14px;
  background: var(--surface);
  border: 1px solid var(--line);
  color: var(--ink-3);
  padding: 7px 16px;
  border-radius: var(--r-full);
}

.doc-layout { display: grid; grid-template-columns: 232px 1fr; gap: 48px; align-items: start; }

.doc-side { position: sticky; top: calc(var(--nav-h) + 24px); }
.doc-side h4 { font-size: 13px; color: var(--ink-4); letter-spacing: .12em; margin-bottom: 14px; text-transform: uppercase; }
.doc-side ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 3px; }
.doc-side a {
  display: block; padding: 9px 14px;
  font-size: 15px; color: var(--ink-3);
  border-radius: var(--r-sm);
  border-left: 3px solid transparent;
  transition: all .2s var(--ease);
}
.doc-side a:hover, .doc-side a.is-active {
  color: var(--brand-deep);
  background: var(--brand-light);
  border-left-color: var(--brand);
}

.doc-body {
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  padding: 48px 52px;
  box-shadow: var(--sh-sm);
  max-width: 78ch;
}
.doc-body h2 {
  font-size: 21px;
  margin: 44px 0 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-soft);
  scroll-margin-top: calc(var(--nav-h) + 24px);
}
.doc-body h2:first-child { margin-top: 0; }
.doc-body h3 { font-size: 17.5px; margin: 28px 0 10px; color: var(--ink); }
.doc-body p  { font-size: 16.5px; color: var(--ink-2); line-height: 1.95; margin-bottom: 16px; }
.doc-body ol, .doc-body ul { padding-left: 26px; margin: 0 0 16px; }
.doc-body li { font-size: 16.5px; color: var(--ink-2); line-height: 1.9; margin-bottom: 8px; }
.doc-body strong { color: var(--ink); }

.doc-callout {
  background: var(--warm-light);
  border-left: 4px solid var(--warm);
  border-radius: var(--r-sm);
  padding: 20px 24px;
  margin: 28px 0;
  font-size: 15.5px;
  color: #7A4A00;
  line-height: 1.85;
}
.doc-callout--brand {
  background: var(--brand-light);
  border-left-color: var(--brand);
  color: var(--brand-deep);
}

/* 免责/健康声明块 */
.disclaimer-box {
  background: #FFFBEC;
  border: 2px solid #FFE08A;
  border-radius: var(--r-md);
  padding: 28px 30px;
  margin: 32px 0;
}
.disclaimer-box h3 { color: #8A5A00; margin-top: 0; }
.disclaimer-box p { color: #6E4A00; font-size: 16px; }

.doc-nav {
  display: flex; flex-wrap: wrap; gap: 14px;
  margin-top: 40px; padding-top: 28px;
  border-top: 1px solid var(--line-soft);
}

/* ---------- 19. 返回顶部 ---------- */
.to-top {
  position: fixed;
  right: 28px; bottom: 28px;
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--line);
  color: var(--ink-2);
  display: grid; place-items: center;
  box-shadow: var(--sh-md);
  opacity: 0; visibility: hidden;
  transform: translateY(12px);
  transition: all .3s var(--ease);
  z-index: 90;
  font-size: 20px;
}
.to-top.is-show { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover { background: var(--brand); color: #fff; border-color: var(--brand); }

/* ---------- 20. 入场动画 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.reveal.is-in { opacity: 1; transform: translateY(0); }
.reveal:nth-child(2) { transition-delay: .08s; }
.reveal:nth-child(3) { transition-delay: .16s; }
.reveal:nth-child(4) { transition-delay: .24s; }

/* 无障碍：尊重减少动效偏好 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* ---------- 21. 响应式 ---------- */
@media (max-width: 1080px) {
  .hero__grid { gap: 44px; }
  .float-card--tl { left: -10px; }
  .float-card--br { right: -6px; }
  .feature { gap: 44px; }
  .elder-band { padding: 52px 44px; }
}

@media (max-width: 960px) {
  .section { padding: 72px 0; }

  /* 导航转抽屉 */
  .nav__toggle { display: grid; }
  .nav__cta .btn { display: none; }

  .nav__links {
    position: fixed;
    inset: var(--nav-h) 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--sh-md);
    padding: 14px 24px 22px;
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: all .28s var(--ease);
  }
  .nav__links.is-open { transform: translateY(0); opacity: 1; visibility: visible; }
  .nav__links a { padding: 15px 16px; font-size: 17px; }

  .hero { padding: 56px 0 72px; }
  .hero__grid { grid-template-columns: 1fr; gap: 56px; }
  .hero__visual { min-height: auto; order: -1; }
  .hero__blob { width: 340px; height: 340px; }
  .phone { width: 250px; }
  /* 平板下浮动卡片改为分居手机上下方，避免相互重叠与横向溢出 */
  .float-card { max-width: 200px; padding: 10px 13px; gap: 10px; animation: none; }
  .float-card strong { font-size: 14px; }
  .float-card span { font-size: 12px; }
  .float-card__icon { width: 34px; height: 34px; font-size: 17px; border-radius: 10px; }
  .float-card--tl { top: 2px;    left: 0;  right: auto; transform: none; }
  .float-card--br { bottom: 2px; left: 0;  right: auto; transform: none; }

  .roles, .grid--3, .grid--4, .price-grid { grid-template-columns: repeat(2, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .price-grid:has(> .price-card:nth-child(4):last-child) { grid-template-columns: repeat(2, 1fr); }

  .feature, .feature--flip .feature__media { grid-template-columns: 1fr; gap: 40px; }
  .feature--flip .feature__media { order: 0; }
  .feature + .feature { margin-top: 72px; }

  .steps { grid-template-columns: repeat(2, 1fr); row-gap: 40px; }
  .steps::before { display: none; }

  .elder-band, .join-banner, .download {
    grid-template-columns: 1fr;
    padding: 44px 32px;
  }
  .elder-btns { grid-template-columns: repeat(4, 1fr); }
  .join-banner { text-align: center; }
  .join-banner ul { justify-content: center; }

  .contact { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .doc-layout { grid-template-columns: 1fr; gap: 32px; }
  .doc-side { position: static; }
  .doc-side ul { flex-direction: row; flex-wrap: wrap; gap: 8px; }
  .doc-side a { border-left: none; border-bottom: 3px solid transparent; border-radius: var(--r-sm); }
  .doc-side a:hover, .doc-side a.is-active { border-left: none; border-bottom-color: var(--brand); }
  .doc-body { padding: 34px 28px; }
}

@media (max-width: 640px) {
  body { font-size: 16px; }
  .wrap { padding: 0 18px; }
  .section { padding: 58px 0; }
  .section--tight { padding: 46px 0; }

  /* 移动端隐藏浮动卡片，避免遮挡手机模型并溢出屏幕 */
  .float-card { display: none; }

  /* 手机模型缩至安全宽度，两侧留出呼吸空间 */
  .hero__visual { padding: 8px 0; }
  .hero__blob { width: 300px; height: 300px; }
  .phone { width: 232px; }

  .hero { padding: 32px 0 52px; }
  .hero__title { letter-spacing: -0.02em; }
  .hero__actions { flex-direction: column; }
  .hero__actions .btn { width: 100%; }
  .hero__stats { grid-template-columns: 1fr; gap: 16px; text-align: center; }

  /* 导航在窄屏只留品牌与汉堡菜单，避免拥挤 */
  .nav__name { font-size: 19px; }
  .nav__logo { width: 38px; height: 38px; font-size: 20px; }

  .roles, .grid--2, .grid--3, .grid--4, .price-grid, .steps { grid-template-columns: 1fr; }
  .price-grid:has(> .price-card:nth-child(4):last-child) { grid-template-columns: 1fr; }

  .card, .price-card { padding: 28px 24px; }
  .sec-head { margin-bottom: 40px; }

  .elder-band { padding: 36px 24px; border-radius: var(--r-lg); }
  .elder-btns { grid-template-columns: repeat(2, 1fr); }
  .join-banner, .qr-box { padding: 32px 24px; }

  .feature__points li { font-size: 16px; }
  .footer__grid { grid-template-columns: 1fr; gap: 30px; }
  .footer__bottom { flex-direction: column; align-items: flex-start; }

  .doc-body { padding: 26px 20px; }
  .doc-body p, .doc-body li { font-size: 16px; }

  .to-top { right: 16px; bottom: 16px; width: 48px; height: 48px; }
}

/* ---------- 22. 打印 ---------- */
@media print {
  .nav, .footer, .to-top, .doc-side, .float-card, .hero__visual { display: none !important; }
  body { background: #fff; font-size: 12pt; }
  .doc-body { box-shadow: none; border: none; padding: 0; max-width: none; }
  .section, .page-head { padding: 0 0 12pt; background: none; }
  .doc-body h2 { page-break-after: avoid; }
}

/* ---------- 23. 文档页与备案号 ---------- */
/* 文档页「联系我们」区：移除电话项后仅剩邮箱一项，居中收窄避免左对齐过散 */
.doc-bottom{max-width:760px;margin:0 auto;text-align:center}
/* 居中后不再需要分隔线，否则单项会残留一条孤立横线。
   注：曾追加 .contact-item:first-child 作兜底，实测永不命中——
   每个 contact-item 前都有 h3/p，永不是父元素首子，故已移除。
   真正生效的是下面这条类选择器。 */
.doc-bottom.contact-item{border-top:none}
.doc-bottom__links{display:inline-flex;flex-wrap:wrap;gap:8px 22px;justify-content:center}

/* 文档页页脚与首页统一结构：取消顶部边框与内边距（原为内联 style，迁移到此处） */
.footer--a .footer__bottom{border:none;padding-top:0}
.footer__bottom{flex-wrap:wrap;gap:6px 16px;align-items:center}
.footer--a .footer__bottom{text-align:left}
/* main 内的居中块不继承页脚对齐，避免被 footer__bottom 的属性污染 */
.doc-page .doc-bottom{margin:0 auto}

.footer__icp a{color:rgba(255,255,255,.60);text-decoration:none}
.footer__icp a:hover{color:#fff;text-decoration:underline}
.footer__legal{gap:16px}
.footer__brand strong{font-size:18px;letter-spacing:.04em}
.footer__brand small{display:block;margin-top:4px;font-size:13px;font-weight:400;color:rgba(255,255,255,.60);letter-spacing:.02em}
.footer__about{margin-top:16px}
/* 页脚为深墨色 #1E2A2C，文字须用浅色，禁用浅色页的 --ink-3/--ink-4 */
.footer__mail{display:inline-flex;align-items:center;gap:8px;margin-top:18px;font-size:14.5px;color:rgba(255,255,255,.78);text-decoration:none}
.footer__mail:hover{color:#fff;text-decoration:underline}
.contact-card:first-child > h3{margin-bottom:6px}
.contact-card:first-child > p{margin-bottom:20px}
/* 注：曾有 .contact-item + .contact-item{margin-top:14px} 兜底规则，
   但文档页删掉电话项后 .doc-bottom 是 .doc-body 唯一子元素、匹配数为 0，
   实测确认从未生效，故移除。首页第二张卡片仍有两项，其间距由 .contact-item 自带 padding 提供。 */

@media (max-width:760px){
  .doc-bottom{padding:0 18px}
  .doc-bottom__links{flex-direction:column;align-items:center;gap:10px}
  /* 文档页窄屏：居中堆叠，避免左对齐与上方内容形成留白断层 */
  .footer--a .footer__bottom{flex-direction:column;align-items:center;gap:8px}
}
@media (max-width:400px){
  .footer--a .footer__bottom{gap:6px}
  .footer--a .footer__bottom > span{max-width:100%}
}