:root {
  color-scheme: light;
  --ink: #26344c;
  --muted: #56657b;
  --primary: #5363b6;
  --line: #dce3ef;
  --paper: #f8f9fc;
  --max: 1160px;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-synthesis: none;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 104px; }
body { margin: 0; font-size: 16px; line-height: 1.8; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
h1, h2, h3, p, figure { margin: 0; }
h1, h2, h3 { line-height: 1.4; letter-spacing: -.035em; font-weight: 650; }
a:focus-visible, summary:focus-visible { outline: 3px solid #4354a9; outline-offset: 5px; border-radius: 6px; }
.section-wrap { max-width: var(--max); margin: 0 auto; padding-left: 28px; padding-right: 28px; }
.skip-link { position: fixed; left: 16px; top: -90px; z-index: 30; padding: 10px 20px; background: #fff; box-shadow: 0 3px 20px #29354f20; }
.skip-link:focus { top: 12px; }
.site-header { position: sticky; top: 0; z-index: 20; background: #f8f9fcf0; border-bottom: 1px solid #e1e6efaa; -webkit-backdrop-filter: blur(18px); backdrop-filter: blur(18px); }
.nav-wrap { max-width: var(--max); padding: 16px 28px; margin: auto; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; font-weight: 650; font-size: 21px; letter-spacing: .03em; }
.brand img { border-radius: 12px; }
.site-header nav { display: flex; align-items: center; gap: 28px; font-size: 14px; font-weight: 550; }
.site-header nav > a { min-height: 44px; display: inline-flex; align-items: center; }
.site-header nav > a:hover, .text-link:hover { color: var(--primary); }
.nav-action { padding: 0 18px; border: 1px solid #ced7e7; border-radius: 99px; gap: 14px; background: #fff8; }
.hero { display: grid; grid-template-columns: 1.08fr 1fr; align-items: center; gap: 40px; padding-top: 42px; padding-bottom: 66px; }
.hero-copy { min-width: 0; padding-bottom: 8px; }
.eyebrow { font-size: 14px; font-weight: 600; letter-spacing: .07em; color: var(--primary); margin-bottom: 22px; }
h1 { font-size: clamp(38px, 4.2vw, 56px); line-height: 1.48; letter-spacing: -.045em; }
h1 span { color: var(--primary); }
.hero-description { margin-top: 25px; max-width: 470px; color: var(--muted); font-size: 18px; line-height: 1.9; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 24px; margin-top: 31px; }
.button { min-height: 50px; display: inline-flex; align-items: center; justify-content: center; gap: 22px; padding: 10px 23px; border-radius: 14px; font-size: 16px; font-weight: 600; transition: background .2s, box-shadow .2s; }
.primary { background: var(--primary); color: #fff; box-shadow: 0 6px 14px #5363b620, inset 0 1px 1px #ffffff50; }
.primary:hover { background: #4656a5; box-shadow: 0 8px 20px #5363b62a; }
.text-link { font-size: 14px; min-height: 44px; display: inline-flex; align-items: center; gap: 10px; }
.topic-links { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin-top: 32px; max-width: 470px; }
.topic-links a { display: flex; align-items: center; justify-content: space-between; gap: 5px; min-height: 46px; padding: 8px 12px; border: 1px solid #dce3ed; border-radius: 11px; background: #fff9; color: #485c7c; font-size: 14px; white-space: nowrap; }
.topic-links a:hover { background: #eaf0fa; border-color: #bccbe2; }
.topic-links a:last-child { background: #eff0fb; border-color: #dadcf1; color: #5b60a1; }
.hero-visual { height: 594px; position: relative; display: flex; align-items: center; justify-content: center; border: 1px solid #dce4f1; border-radius: 30px; background: radial-gradient(ellipse at 85% 80%, #a4dbd08c, transparent 54%), radial-gradient(ellipse at 12% 20%, #bdcafa99, transparent 56%), linear-gradient(130deg, #e9eef9, #f0f6f5); box-shadow: inset 0 1px 1px #fff, 0 20px 50px #34466406; overflow: hidden; }
.visual-caption { position: absolute; top: 22px; left: 25px; right: 25px; display: flex; justify-content: space-between; gap: 12px; font-size: 12px; color: #576887; }
.visual-caption span:first-child { letter-spacing: .1em; }
.product-phone { width: 239px; flex-shrink: 0; border: 6px solid #fff; border-radius: 30px; overflow: hidden; box-shadow: 0 25px 45px #334d6c26, 0 0 0 1px #d0d9e9; transform: rotate(-3deg); margin-top: -7px; }
.product-phone img { width: 100%; height: auto; }
.visual-note { position: absolute; left: 25px; bottom: 20px; display: flex; align-items: center; gap: 12px; font-size: 12px; line-height: 1.6; color: #415775; }
.visual-note small { font-size: 12px; color: #5d6d83; }
.note-line { width: 21px; height: 1px; background: #719595; }
.health-section, .research-section { padding-top: 66px; padding-bottom: 74px; }
.health-section { border-top: 1px solid var(--line); }
.section-heading { display: flex; justify-content: space-between; align-items: flex-end; gap: 40px; margin-bottom: 34px; }
.section-heading > div { flex-shrink: 0; }
.section-heading .eyebrow { margin-bottom: 14px; }
h2 { font-size: 36px; line-height: 1.5; }
.section-heading > p { max-width: 440px; font-size: 16px; color: var(--muted); padding-bottom: 6px; }
.health-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.health-card { padding: 28px; border: 1px solid #d4e3df; border-radius: 23px; box-shadow: inset 0 1px 1px #ffffffbd; display: flex; flex-direction: column; align-items: flex-start; }
.rehab-card { background: linear-gradient(135deg, #dfefe9, #e8f3ec); }
.nutrition-card { background: linear-gradient(135deg, #f5eadb, #f8f1e4); border-color: #e8ddca; }
.followup-card { background: linear-gradient(135deg, #e2e9f8, #edf0fb); border-color: #d5dff0; }
.card-icon { width: 44px; height: 44px; display: grid; place-items: center; border: 1px solid #ffffffcc; border-radius: 13px; background: #ffffff80; color: #347567; margin-bottom: 23px; box-shadow: 0 3px 10px #4a647007; }
.card-icon svg { width: 27px; height: 27px; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.nutrition-card .card-icon { color: #947347; }
.followup-card .card-icon { color: #596bae; }
.card-label { font-size: 14px; font-weight: 550; color: #546b78; }
.health-card h3 { font-size: 22px; margin: 10px 0 14px; }
.health-card > p, .role-card > p, .research-card > p { color: var(--muted); font-size: 16px; line-height: 1.85; }
.feature-tags { display: flex; gap: 7px; flex-wrap: wrap; margin-top: 23px; }
.feature-tags span { font-size: 14px; padding: 3px 10px; background: #ffffff85; border: 1px solid #ffffffc7; border-radius: 8px; color: #52647d; }
.health-card .feature-tags { padding-top: 22px; margin-top: auto; }
.section-note { color: #647187; font-size: 13px; line-height: 1.85; margin-top: 24px; }
.team-section { background: #edf1f8; border-top: 1px solid #e0e6f1; border-bottom: 1px solid #e0e6f1; padding: 72px 0; }
.care-journey { margin: 0 0 24px; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border: 1px solid #d8e1ee; border-radius: 20px; background: #ffffff88; overflow: hidden; }
.care-journey li { min-width: 0; padding: 24px; position: relative; }
.care-journey li + li { border-left: 1px solid #dce3ef; }
.care-journey li > span { font-size: 13px; font-weight: 600; color: #6479ad; letter-spacing: .08em; }
.care-journey h3 { font-size: 20px; margin-top: 10px; }
.care-journey p { font-size: 14px; color: var(--muted); margin-top: 8px; }
.role-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
.role-card { padding: 30px; border: 1px solid #ffffffdd; border-radius: 23px; box-shadow: inset 0 1px 1px #fff, 0 8px 26px #4c608d07; }
.ai-role { background: radial-gradient(ellipse at 100% 100%, #d7ddf880, transparent 70%), linear-gradient(135deg, #dce4fb, #e9eefa); }
.doctor-role { background: radial-gradient(ellipse at 100% 100%, #bae1d780, transparent 70%), linear-gradient(135deg, #dcece9, #e9f3f0); }
.role-label { display: inline-block; color: #4d609b; font-size: 14px; font-weight: 600; }
.doctor-role .role-label { color: #377365; }
.role-card h3 { font-size: 26px; margin: 13px 0 16px; }
details { border: 1px solid #d7e0ee; border-radius: 18px; background: #ffffff9c; }
summary { list-style: none; min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 21px 25px; cursor: pointer; -webkit-tap-highlight-color: transparent; }
summary::-webkit-details-marker { display: none; }
summary::marker { content: ""; }
summary strong { font-size: 18px; font-weight: 600; }
.summary-description { font-size: 14px; color: #617188; margin-left: 20px; }
.expand-mark { display: grid; place-items: center; flex-shrink: 0; width: 30px; height: 30px; border: 1px solid #d7e0ec; border-radius: 50%; color: #5a6e9d; font-size: 22px; line-height: 1; transition: transform .2s; }
details[open] > summary .expand-mark { transform: rotate(45deg); }
details[open] > summary { border-bottom: 1px solid #dce3ef; }
.service-details { margin-top: 24px; }
.service-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; padding: 25px; }
.service-list h3 { font-size: 19px; }
.service-list p { margin-top: 10px; color: var(--muted); font-size: 16px; line-height: 1.85; }
.research-section { padding-top: 76px; }
.research-section .eyebrow { color: #67639f; }
.research-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.research-card { position: relative; padding: 29px 31px; border: 1px solid #dfe0ef; border-radius: 21px; background: #f0f0f9; box-shadow: inset 0 1px 1px #ffffffd9; }
.research-card:nth-child(2), .research-card:nth-child(3) { background: #f5f5fb; }
.research-number { color: #6865a1; font-size: 14px; letter-spacing: .035em; }
.research-card h3 { font-size: 23px; margin: 13px 0 15px; }
.research-support { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 27px; margin-top: 23px; padding: 31px; border-radius: 22px; border: 1px solid #d6d7ef; background: radial-gradient(ellipse at 100% 100%, #d3e2ed80, transparent 70%), linear-gradient(125deg, #e2e1f5, #eeedf9); box-shadow: inset 0 1px 1px #ffffffdb; }
.support-heading .eyebrow { display: block; margin-bottom: 11px; }
.support-heading h3 { font-size: 24px; }
.support-item { border-left: 1px solid #cfd1e8; padding-left: 26px; }
.support-tag { font-size: 14px; color: #5d5a98; font-weight: 600; }
.support-item p { margin-top: 15px; font-size: 16px; color: #53617a; line-height: 1.85; }
.features { padding-top: 12px; padding-bottom: 64px; }
.compact-heading h2 { font-size: 30px; }
.compact-heading > div { flex-shrink: 1; }
.product-details { background: #fff9; }
.feature-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; padding: 23px 23px 0; }
.feature-panel { border-radius: 19px; border: 1px solid #dce4f0; overflow: hidden; }
.blue-panel { background: linear-gradient(140deg, #e8eefb, #e1eafa); }
.mint-panel { background: linear-gradient(140deg, #e7f2ee, #dfeee7); border-color: #d9e7e0; }
.feature-copy { padding: 27px 27px 0; }
.feature-copy h3 { font-size: 23px; margin-top: 11px; }
.feature-copy p { font-size: 16px; line-height: 1.85; color: #52647b; margin-top: 14px; }
.screen-window { width: min(280px, 84%); height: 290px; margin: 27px auto 0; border: 5px solid #fff; border-bottom: 0; border-radius: 24px 24px 0 0; overflow: hidden; box-shadow: 0 12px 35px #34476419; }
.screen-window img { width: 100%; }
.product-details > .section-note { padding: 0 23px 23px; margin-top: 19px; }
.start-section { padding-top: 0; padding-bottom: 48px; }
.start-card { padding: 43px; display: grid; grid-template-columns: 1fr 1fr; gap: 62px; border: 1px solid #dae4e8; border-radius: 26px; background: linear-gradient(125deg, #fff, #edf5f1); }
.start-intro > img { border-radius: 18px; margin-bottom: 22px; }
.start-intro .eyebrow { margin-bottom: 14px; }
.start-intro h2 { font-size: 30px; }
.start-intro > p:last-child { color: var(--muted); font-size: 16px; margin-top: 18px; }
.start-steps { list-style: none; padding: 0; margin: 0; display: grid; align-content: center; gap: 27px; }
.start-steps li { display: flex; gap: 17px; }
.start-steps li > span { width: 34px; height: 34px; flex-shrink: 0; border: 1px solid #cfdfd7; border-radius: 50%; background: #e8f1eb; display: grid; place-items: center; color: #4b7767; font-size: 14px; }
.start-steps h3 { font-size: 18px; line-height: 1.8; }
.start-steps p { color: var(--muted); font-size: 16px; margin-top: 5px; line-height: 1.85; }
.medical-notice { display: flex; gap: 28px; padding-bottom: 35px; color: #627187; font-size: 13px; }
.medical-notice strong { flex-shrink: 0; color: #455972; font-weight: 600; }
.medical-notice p { line-height: 1.9; }
.site-footer { padding-top: 28px; padding-bottom: 30px; border-top: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; gap: 25px; color: #647389; font-size: 13px; }
.footer-brand { font-size: 18px; color: #41516c; }
.footer-brand img { border-radius: 9px; }
.site-footer > div > p { margin-top: 7px; }
.legal { text-align: right; }
.legal a { display: inline-block; min-height: 44px; padding: 8px 0; }
.legal a:hover { text-decoration: underline; }

@media (max-width: 1000px) {
  .site-header nav { gap: 20px; }
  .hero { gap: 28px; }
  .hero-visual { height: 552px; }
  .product-phone { width: 222px; }
  .visual-caption span:last-child { display: none; }
  h1 { font-size: 42px; }
  .hero-description { font-size: 16px; }
  .hero-actions { gap: 14px; }
  .topic-links { gap: 6px; }
  .topic-links a { padding-left: 9px; padding-right: 9px; }
  .section-heading { gap: 28px; }
  .section-heading > p { max-width: 365px; }
  .health-grid { gap: 14px; }
  .health-card { padding: 22px; }
  .health-card h3 { font-size: 21px; }
  .care-journey li { padding: 22px 18px; }
  .research-support { gap: 22px; padding: 28px; }
  .support-item { padding-left: 22px; }
  .start-card { gap: 36px; padding: 34px; }
}
@media (max-width: 760px) {
  html { scroll-padding-top: 88px; }
  .section-wrap { padding-left: 20px; padding-right: 20px; }
  .nav-wrap { padding: 11px 20px; gap: 12px; }
  .brand { font-size: 18px; gap: 8px; }
  .brand img { width: 36px; height: 36px; border-radius: 10px; }
  .site-header nav { gap: 0; }
  .site-header nav > a:not(.nav-action) { display: none; }
  .nav-action { font-size: 14px; padding: 0 14px; gap: 9px; min-height: 44px; }
  .hero { display: flex; flex-direction: column; gap: 28px; padding-top: 32px; padding-bottom: 36px; align-items: stretch; }
  .hero-copy { padding: 0; }
  .eyebrow { font-size: 14px; margin-bottom: 15px; letter-spacing: .045em; }
  h1 { font-size: clamp(32px, 8.8vw, 45px); line-height: 1.45; }
  .hero-description { margin-top: 19px; font-size: 16px; line-height: 1.85; max-width: 530px; }
  .hero-actions { margin-top: 23px; gap: 18px; }
  .button { padding: 10px 17px; gap: 15px; min-height: 48px; font-size: 15px; }
  .text-link { font-size: 14px; gap: 7px; }
  .topic-links { margin-top: 22px; gap: 7px; max-width: none; }
  .topic-links a { font-size: 14px; padding: 9px 10px; min-height: 46px; border-radius: 10px; }
  .hero-visual { height: 376px; max-width: 500px; width: 100%; align-self: center; border-radius: 23px; }
  .visual-caption { top: 16px; left: 19px; right: 19px; gap: 8px; }
  .visual-caption span:last-child { display: block; }
  .product-phone { width: 232px; max-width: 75%; height: 278px; border-width: 5px; border-radius: 25px; margin-top: -8px; transform: rotate(-2deg); }
  .visual-note { left: 19px; bottom: 16px; gap: 9px; }
  .health-section, .research-section { padding-top: 43px; padding-bottom: 44px; }
  .section-heading { display: block; margin-bottom: 24px; }
  .section-heading .eyebrow { margin-bottom: 10px; }
  h2 { font-size: 29px; line-height: 1.45; }
  .section-heading > p { font-size: 16px; margin-top: 14px; line-height: 1.85; max-width: none; padding-bottom: 0; }
  .section-heading > p br { display: none; }
  .health-grid { grid-template-columns: 1fr; gap: 14px; }
  .health-card { display: grid; grid-template-columns: 42px minmax(0, 1fr); gap: 0 12px; padding: 22px; border-radius: 20px; align-items: start; }
  .card-icon { width: 40px; height: 40px; grid-column: 1; grid-row: 1 / 3; border-radius: 12px; margin: 4px 0 0; }
  .card-icon svg { width: 25px; height: 25px; }
  .health-card .card-label { grid-column: 2; }
  .health-card h3 { grid-column: 2; font-size: 20px; margin: 5px 0 0; }
  .health-card > p { grid-column: 1 / -1; margin-top: 16px; font-size: 16px; }
  .health-card .feature-tags { grid-column: 1 / -1; padding-top: 15px; margin-top: 0; }
  .feature-tags { gap: 6px; }
  .feature-tags span { font-size: 14px; padding: 3px 9px; }
  .section-note { font-size: 13px; line-height: 1.85; margin-top: 20px; }
  .team-section { padding: 43px 0; }
  .care-journey { grid-template-columns: repeat(2, minmax(0, 1fr)); margin-bottom: 18px; border-radius: 18px; }
  .care-journey li { padding: 18px 15px; }
  .care-journey li:nth-child(3) { border-left: 0; }
  .care-journey li:nth-child(n + 3) { border-top: 1px solid #dce3ef; }
  .care-journey h3 { font-size: 19px; margin-top: 6px; }
  .care-journey p { font-size: 14px; margin-top: 5px; }
  .role-grid { grid-template-columns: 1fr; gap: 14px; }
  .role-card { padding: 23px; border-radius: 20px; }
  .role-card h3 { font-size: 24px; margin: 10px 0 13px; }
  .role-card .feature-tags { margin-top: 18px; }
  .service-details { margin-top: 18px; }
  summary { padding: 18px 20px; gap: 12px; min-height: 80px; }
  summary strong { font-size: 17px; }
  .summary-description { display: block; margin: 4px 0 0; font-size: 14px; line-height: 1.65; }
  .expand-mark { width: 28px; height: 28px; }
  .service-list { grid-template-columns: 1fr; gap: 0; padding: 0 20px; }
  .service-list article { padding: 20px 0; }
  .service-list article + article { border-top: 1px solid #dce3ef; }
  .service-list p { margin-top: 8px; }
  .research-grid { grid-template-columns: 1fr; gap: 13px; }
  .research-card { padding: 23px; border-radius: 19px; }
  .research-card:nth-child(3) { background: #f0f0f9; }
  .research-card:nth-child(4) { background: #f5f5fb; }
  .research-card h3 { font-size: 21px; margin: 10px 0 12px; }
  .research-support { grid-template-columns: 1fr; gap: 20px; padding: 24px; margin-top: 18px; border-radius: 20px; }
  .support-heading .eyebrow { margin-bottom: 8px; }
  .support-heading h3 { font-size: 24px; }
  .support-heading h3 br { display: none; }
  .support-item { border-left: 0; border-top: 1px solid #cfd1e8; padding: 18px 0 0; }
  .support-item p { margin-top: 9px; }
  .features { padding-top: 3px; padding-bottom: 42px; }
  .compact-heading h2 { font-size: 27px; }
  .feature-grid { grid-template-columns: 1fr; gap: 16px; padding: 16px 16px 0; }
  .feature-copy { padding: 22px 21px 0; }
  .feature-copy h3 { font-size: 21px; }
  .screen-window { width: min(270px, 86%); height: 235px; margin-top: 22px; border-radius: 21px 21px 0 0; }
  .product-details > .section-note { padding: 0 18px 18px; margin-top: 16px; }
  .start-section { padding-bottom: 32px; }
  .start-card { padding: 25px; grid-template-columns: 1fr; gap: 30px; border-radius: 22px; }
  .start-intro > img { width: 56px; height: 56px; border-radius: 15px; margin-bottom: 19px; }
  .start-intro h2 { font-size: 26px; }
  .start-intro > p:last-child { margin-top: 15px; }
  .start-steps { gap: 23px; }
  .start-steps li { gap: 13px; }
  .start-steps h3 { font-size: 18px; }
  .medical-notice { display: block; font-size: 13px; padding-bottom: 28px; }
  .medical-notice p { margin-top: 8px; }
  .site-footer { margin-left: 20px; margin-right: 20px; padding: 24px 0; display: block; }
  .legal { text-align: left; margin-top: 20px; }
  .footer-brand img { width: 30px; height: 30px; }
}
@media (max-width: 360px) {
  .section-wrap { padding-left: 17px; padding-right: 17px; }
  .nav-wrap { padding-left: 17px; padding-right: 17px; }
  .brand { font-size: 17px; }
  .nav-action { padding: 0 11px; gap: 7px; }
  h1 { font-size: 32px; }
  .hero-actions { gap: 10px; }
  .button { padding-left: 13px; padding-right: 13px; gap: 10px; font-size: 14px; }
  .topic-links { gap: 5px; }
  .topic-links a { padding-left: 7px; padding-right: 7px; }
  .topic-links a > span { display: none; }
  .visual-caption span:last-child { display: none; }
  .health-card, .role-card, .research-card { padding: 20px; }
  .health-card h3 { font-size: 19px; }
  .care-journey li { padding: 17px 13px; }
  .care-journey p { max-width: 8em; }
  .research-card h3 { font-size: 20px; }
  summary { padding-left: 17px; padding-right: 17px; }
  .start-card { padding: 22px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}