:root {
  --bg: #F7F6F2;
  --bg-soft: #F8F7F4;
  --surface: rgba(255, 255, 255, 0.78);
  --surface-solid: #FCFBF7;

  --brand-deep: #2F6B4F;
  --brand-leaf: #9EC56B;
  --brand-sun: #F6C543;
  --brand-leaf-soft: #E6F0DD;

  --text: #2E2E2E;
  --text-muted: #6A6A6A;
  --line: rgba(0, 0, 0, 0.08);
  --line-strong: rgba(0, 0, 0, 0.12);

  --shadow: 0 8px 24px rgba(0, 0, 0, 0.04);

  /* 全站收窄 */
  --content-max: 960px;
  --content-padding: 22px;
  --read-max: 640px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  /* 尽量贴近 apple.com.cn 的中文字体栈 */
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro SC", "SF Pro Text", "SF Pro Display",
    "PingFang SC", "Hiragino Sans GB", "Helvetica Neue", "Arial", "Microsoft YaHei", sans-serif;
  background-color: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
}

main {
  min-height: 100vh;
}

.section-inner,
.site-header-inner,
.hero-inner {
  max-width: var(--content-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--content-padding);
  padding-right: var(--content-padding);
}

.section {
  padding: 80px 0;
}

.section-header {
  margin: 0 auto 36px;
  max-width: var(--read-max);
  text-align: center;
}

.section-title {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text);
  margin: 0 0 10px;
}

.section-title-left {
  text-align: left;
  margin-bottom: 18px;
}

.section-intro {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-muted);
}

/* Section 背景：白 / 浅灰交替，无绿色大底 */
.section-about {
  background-color: #fff;
}

.section-framework {
  background-color: #fff;
}

.section-coaches {
  background-color: var(--bg-soft);
}

.section-products {
  background-color: #fff;
  padding-bottom: 120px;
}

/* Header */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  padding: 16px 0;
  background-color: #fff;
  transition: box-shadow 0.25s ease;
}

.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-header.scrolled {
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.brand-symbol {
  width: 34px;
  height: 34px;
}

.brand-logo {
  width: 100%;
  height: auto;
  object-fit: contain;
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand-cn {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--text);
}

.brand-en {
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 14px;
}

.nav-link {
  color: var(--text-muted);
  transition: color 0.18s ease;
}

.nav-link:hover {
  color: var(--text);
}

.site-nav-toggle {
  display: none;
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  align-items: center;
  justify-content: center;
  padding: 0;
  cursor: pointer;
}

.site-nav-toggle-lines {
  width: 16px;
  height: 9px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.site-nav-toggle-line {
  height: 1.5px;
  border-radius: 999px;
  background-color: var(--text);
}

.site-nav-mobile {
  position: fixed;
  top: 60px;
  left: 0;
  right: 0;
  padding: 12px 0 16px;
  background-color: #fff;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.06);
  display: none;
  z-index: 18;
}

.site-nav-mobile-inner {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--content-padding);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.site-nav-mobile a {
  font-size: 14px;
  color: var(--text);
  padding: 4px 0;
}

.site-nav-mobile.open {
  display: block;
}

/* Hero：保留品牌光感，宽度与主容器一致 */

.hero {
  position: relative;
  padding: 100px 0 72px;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 18% 6%, rgba(246, 197, 67, 0.1), transparent 50%),
    radial-gradient(circle at 82% 90%, rgba(158, 197, 107, 0.14), transparent 55%),
    radial-gradient(circle at 50% 40%, rgba(255, 255, 255, 0.7), transparent 65%);
  opacity: 0.95;
  pointer-events: none;
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.5fr);
  gap: 44px;
  align-items: center;
}

.hero-logo-area {
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-logo-orbit {
  width: 120px;
  height: 120px;
  border-radius: 999px;
  background:
    radial-gradient(circle at 30% 18%, rgba(246, 197, 67, 0.4), transparent 55%),
    radial-gradient(circle at 80% 88%, rgba(158, 197, 107, 0.55), transparent 60%);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 12px 32px rgba(47, 107, 79, 0.12);
  position: relative;
}

.hero-logo-orbit::after {
  content: "";
  position: absolute;
  inset: 14%;
  border-radius: inherit;
  border: 1px solid rgba(252, 251, 247, 0.4);
}

.hero-logo-core {
  width: 54px;
  height: 54px;
  border-radius: 999px;
  background:
    radial-gradient(circle at 32% 24%, #F6C543, #F3B020 55%, #F6C543 75%),
    radial-gradient(circle at 80% 88%, rgba(255, 255, 255, 0.8), transparent 70%);
  box-shadow: 0 6px 20px rgba(224, 170, 46, 0.4);
}

.hero-content {
  min-width: 0;
}

.hero-brand-cn {
  margin: 0;
  font-size: 14px;
  letter-spacing: 0.1em;
  color: var(--text);
}

.hero-brand-en {
  margin: 2px 0 12px;
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--text-muted);
}

.hero-heading {
  margin: 0 0 14px;
  font-size: 26px;
  line-height: 1.55;
  font-weight: 600;
  color: var(--text);
}

.hero-subtext {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-muted);
}

.hero-trust {
  margin: 0 0 20px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border-radius: 999px;
  background-color: var(--brand-deep);
  color: #fff;
  font-size: 14px;
  letter-spacing: 0.04em;
  border: none;
  box-shadow: 0 6px 18px rgba(47, 107, 79, 0.2);
  transition: background-color 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
}

.btn-primary:hover {
  background-color: #397d5d;
  transform: translateY(-1px);
  box-shadow: 0 10px 22px rgba(47, 107, 79, 0.22);
}

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

.link-quiet {
  padding: 0;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 14px;
  cursor: pointer;
  transition: color 0.18s ease;
}

.link-quiet:hover {
  color: var(--text);
}

/* 关于我们：文案 + 小红书 / 微信入口 */

.about-body {
  margin: 0 0 40px;
}

.about-body p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--text);
}

.about-body p:last-child {
  margin-bottom: 0;
}

.about-channels {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.about-channel {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 20px;
  align-items: start;
  padding: 22px 24px;
  background-color: var(--bg-soft);
  border-radius: 14px;
  border: 1px solid var(--line);
}

.about-channel-qr-col {
  flex-shrink: 0;
}

.about-channel-qr {
  width: 120px;
  height: 120px;
  object-fit: contain;
  display: block;
  border-radius: 8px;
}

.about-channel-copy {
  min-width: 0;
}

.about-channel-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.about-channel-logo {
  width: 24px;
  height: 24px;
  object-fit: contain;
  flex-shrink: 0;
}

.about-channel-title {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.3;
}

.about-channel-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-muted);
}

.section-about .section-title {
  text-align: center;
  margin-bottom: 28px;
}

.section-what-is-life-coach .section-intro + .section-intro {
  margin-top: 12px;
}

/* 支持框架：三张独立卡片 */

.framework-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.framework-card {
  background-color: #fff;
  border-radius: 16px;
  padding: 28px 22px 30px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  transition: transform 0.16s ease, box-shadow 0.16s ease, border-color 0.16s ease;
}

.framework-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.06);
  border-color: var(--line-strong);
}

.framework-card-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 10px;
}

.framework-card-num {
  font-size: 32px;
  font-weight: 600;
  line-height: 1;
  color: var(--brand-deep);
  flex-shrink: 0;
}

.framework-card-title {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}

.framework-card-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-muted);
}

/* 教练团队：2×2 */

.coaches-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.coach-card {
  display: flex;
  align-items: stretch;
  gap: 18px;
  border-radius: 16px;
  padding: 24px 22px;
  border: 1px solid var(--line);
  background-color: #fff;
  box-shadow: var(--shadow);
  transition: transform 0.16s ease, box-shadow 0.16s ease;
}

.coach-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.06);
  border-color: var(--line-strong);
}

.coach-icon-wrap {
  flex-shrink: 0;
  width: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  align-self: stretch;
}

.coach-icon {
  width: 72px;
  height: auto;
  max-height: 100%;
  object-fit: contain;
  display: block;
}

.coach-content {
  min-width: 0;
  flex: 1;
}

.coach-title {
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}

.coach-text {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--text-muted);
}

/* 核心产品：2×2 + 封面图 + 带下划线链接 */

.products-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.product-card {
  position: relative;
  background-color: #fff;
  border-radius: 16px;
  border: 1px solid rgba(0, 0, 0, 0.06);
  padding: 28px 28px 28px 36px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.03);
  transition: transform 0.16s ease, box-shadow 0.16s ease, border-color 0.16s ease;
  display: flex;
  flex-direction: column;
}

.product-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 6px;
  border-radius: 16px 0 0 16px;
  transition: width 0.18s ease;
}

.product-1::before {
  background: #A9C2A8;
}

.product-2::before {
  background: #DCC69A;
}

.product-3::before {
  background: #8FAEB7;
}

.product-4::before {
  background: var(--text-muted);
}

.product-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.05);
  border-color: rgba(0, 0, 0, 0.08);
}

.product-card:hover::before {
  width: 8px;
}

.product-card-body {
  padding: 0;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.product-card-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.product-card-title {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}

.product-card-text {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-muted);
  flex: 1;
}

.product-card-link {
  font-size: 13px;
  color: var(--text-muted);
  text-decoration: underline;
  text-underline-offset: 3px;
  align-self: flex-end;
  transition: color 0.18s ease;
}

.product-card-link:hover {
  color: var(--text);
}

/* Footer */

.site-footer {
  padding: 48px var(--content-padding) 36px;
  border-top: none;
  background: linear-gradient(to bottom, var(--bg-soft) 0%, #fff 30%);
}

.site-footer-inner {
  max-width: var(--content-max);
  margin: 0 auto;
  text-align: center;
}

.footer-copy {
  margin: 0;
  font-size: 13px;
  color: var(--text-muted);
}

.footer-links {
  margin: 6px 0 0;
  font-size: 12px;
  color: var(--text-muted);
}

.footer-links a {
  color: var(--text-muted);
}

.footer-links a:hover {
  color: var(--text);
}

/* 通用 section 背景辅助类，供详情页交错使用 */
.section-tone-white {
  background-color: #fff;
}

.section-tone-soft {
  background-color: var(--bg-soft);
}

.hero,
.section {
  scroll-margin-top: 68px;
}

/* ========== 响应式 ========== */

@media (max-width: 960px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
    row-gap: 36px;
  }

  .hero-logo-area {
    order: 1;
  }

  .hero-content {
    order: 2;
  }

  .hero-heading {
    font-size: 24px;
  }

  .section {
    padding-block: 64px;
  }

  .about-channels {
    grid-template-columns: minmax(0, 1fr);
  }

  .framework-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  :root {
    --content-padding: 18px;
  }

  .site-nav {
    display: none;
  }

  .site-nav-toggle {
    display: inline-flex;
  }

  .hero {
    padding-top: 88px;
    padding-bottom: 48px;
  }

  .hero-logo-orbit {
    width: 100px;
    height: 100px;
  }

  .hero-logo-core {
    width: 44px;
    height: 44px;
  }

  .hero-heading {
    font-size: 22px;
  }

  .hero-subtext,
  .hero-trust {
    font-size: 14px;
  }

  .hero-actions {
    gap: 10px;
  }

  .section {
    padding-block: 56px;
  }

  .section-header {
    margin-bottom: 28px;
  }

  .section-title {
    font-size: 20px;
  }

  .section-intro {
    font-size: 14px;
  }

  .about-channel {
    grid-template-columns: auto 1fr;
    padding: 18px 20px;
    gap: 16px;
    align-items: center;
  }

  .about-channel-qr-col {
    order: 0;
  }

  .about-channel-copy {
    order: 0;
  }

  .about-channel-title {
    font-size: 14px;
  }

  .about-channel-text {
    font-size: 13px;
  }

  .about-body p {
    font-size: 14px;
  }

  .framework-cards {
    grid-template-columns: minmax(0, 1fr);
  }

  .framework-card {
    padding: 24px 20px 26px;
  }

  .framework-card-num {
    font-size: 24px;
  }

  .coaches-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
  }

  .coach-icon-wrap {
    width: 72px;
  }

  .coach-icon {
    width: 72px;
  }

  .products-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .product-card-body {
    padding: 0;
  }

  .site-footer {
    padding-top: 28px;
    padding-bottom: 24px;
  }

  .footer-copy {
    font-size: 12px;
  }
}