:root {
  --ink: #17332f;
  --muted: #65746f;
  --green: #14796d;
  --green-dark: #0d5b53;
  --cream: #f3f0e8;
  --paper: #fbfaf6;
  --line: rgba(23, 51, 47, .16);
  --white: #fff;
  --container: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; overflow-x: hidden; color: var(--ink); background: var(--paper); font-family: "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; -webkit-font-smoothing: antialiased; }
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button { color: inherit; font: inherit; }
svg { display: block; }
.svg-library { position: absolute; width: 0; height: 0; overflow: hidden; }
.container { width: min(calc(100% - 48px), var(--container)); margin: 0 auto; }
.section-label { margin: 0 0 28px; color: var(--green); font-size: 12px; font-weight: 700; letter-spacing: .16em; }

.site-header { position: fixed; z-index: 100; top: 0; left: 0; width: 100%; border-bottom: 1px solid transparent; transition: .25s ease; }
.site-header.scrolled, .site-header.menu-active { border-color: var(--line); background: rgba(251, 250, 246, .94); backdrop-filter: blur(16px); }
.header-inner { display: flex; height: 78px; align-items: center; }
.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand > svg { width: 42px; height: 42px; color: var(--green); }
.brand span { display: grid; gap: 4px; line-height: 1; }
.brand strong { font-size: 20px; letter-spacing: .1em; }
.brand small { color: #71807c; font-size: 10px; letter-spacing: .15em; }
.desktop-nav { display: flex; gap: 34px; margin-left: auto; }
.desktop-nav a { padding: 29px 0 27px; border-bottom: 2px solid transparent; color: #425550; font-size: 13px; font-weight: 600; }
.desktop-nav a:hover { border-color: var(--green); color: var(--green); }
.header-actions { display: flex; align-items: center; gap: 22px; margin-left: 42px; }
.service-phone { color: var(--green-dark); font-size: 12px; font-weight: 700; }
.app-entry { display: inline-flex; align-items: center; gap: 8px; padding: 11px 17px; border: 1px solid var(--ink); font-size: 12px; font-weight: 700; transition: .2s ease; }
.app-entry:hover { color: #fff; background: var(--ink); }
.app-entry svg { width: 16px; height: 16px; }
.menu-button { display: none; width: 42px; height: 42px; align-items: center; justify-content: center; padding: 0; border: 1px solid var(--line); background: transparent; }
.menu-button svg { width: 22px; height: 22px; }
.menu-close { display: none; }
.menu-active .menu-open { display: none; }
.menu-active .menu-close { display: block; }
.mobile-nav { display: none; }

.hero { min-height: 920px; overflow: hidden; padding: 154px 0 0; background: var(--cream); }
.hero-layout { display: grid; grid-template-columns: .82fr 1.18fr; align-items: center; gap: 70px; min-height: 650px; }
.hero-copy h1, .product-intro h2, .feature-copy h2, .scenes-intro h2, .about-title h2, .privacy-title h2 { margin: 0; font-family: "Songti SC", STSong, SimSun, serif; font-weight: 700; letter-spacing: -.045em; }
.hero-copy h1 { max-width: 590px; font-size: clamp(54px, 5.5vw, 78px); line-height: 1.18; }
.hero-description { max-width: 510px; margin: 32px 0 0; color: #566762; font-size: 17px; line-height: 1.95; }
.hero-actions { display: flex; align-items: center; gap: 28px; margin-top: 36px; }
.primary-link, .underlined-link, .contact-button { display: inline-flex; align-items: center; gap: 12px; color: #fff; background: var(--green); font-size: 13px; font-weight: 700; }
.primary-link { min-height: 50px; padding: 0 22px; }
.primary-link svg, .underlined-link svg, .contact-button svg { width: 17px; height: 17px; }
.plain-link { padding-bottom: 4px; border-bottom: 1px solid var(--ink); font-size: 13px; font-weight: 700; }
.service-note { margin: 34px 0 0; color: #7a8884; font-size: 11px; }
.real-product-stage { position: relative; height: 650px; }
.screen-frame { position: absolute; margin: 0; overflow: hidden; border: 1px solid rgba(23,51,47,.2); background: #edf1f5; box-shadow: 0 26px 60px rgba(23,51,47,.15); }
.screen-crop { height: 100%; overflow: hidden; }
.screen-crop img { display: block; width: 100%; height: auto; transform: translateY(-19px); }
.main-screen { z-index: 3; top: 0; left: 50%; width: 300px; height: 647px; border: 8px solid #17332f; border-radius: 38px; transform: translateX(-50%); }
.main-screen::after { content: ""; position: absolute; top: 7px; left: 50%; width: 88px; height: 21px; border-radius: 0 0 14px 14px; background: #17332f; transform: translateX(-50%); }
.side-screen { z-index: 1; width: 215px; height: 462px; border: 5px solid #fff; }
.side-screen figcaption { position: absolute; right: 12px; bottom: 12px; padding: 6px 9px; color: #fff; background: rgba(23,51,47,.76); font-size: 10px; }
.health-screen { top: 72px; left: 0; transform: rotate(-4deg); }
.event-screen { top: 104px; right: 0; transform: rotate(4deg); }
.hero-footnote { display: grid; grid-template-columns: 80px 1fr; align-items: start; max-width: 850px; margin-top: 54px; padding: 24px 0 38px; border-top: 1px solid var(--line); }
.hero-footnote span { color: var(--green); font-family: Georgia, serif; font-size: 13px; font-style: italic; }
.hero-footnote p { margin: 0; color: #65746f; font-family: "Songti SC", STSong, SimSun, serif; font-size: 16px; line-height: 1.9; }

.product-intro { padding: 130px 0 105px; background: var(--paper); }
.intro-grid { display: grid; grid-template-columns: 1.1fr .9fr; align-items: end; gap: 110px; }
.product-intro h2 { font-size: clamp(42px,4.5vw,62px); line-height: 1.3; }
.intro-grid > div:last-child > p { margin: 0; color: var(--muted); font-size: 15px; line-height: 2; }
.underlined-link { width: fit-content; margin-top: 28px; padding: 0 0 6px; border-bottom: 1px solid var(--green); color: var(--green); background: transparent; }

.feature-section { padding: 120px 0; border-top: 1px solid var(--line); background: #fff; }
.feature-section-alt { background: #eeece4; }
.feature-row { display: grid; grid-template-columns: .9fr 1.1fr; align-items: center; gap: 140px; }
.feature-row-reverse .feature-screen { order: 2; }
.feature-row-reverse .feature-copy { order: 1; }
.feature-screen { position: relative; display: grid; min-height: 680px; place-items: center; }
.feature-screen::before { content: ""; position: absolute; top: 13%; right: 0; bottom: 13%; left: 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.single-device { position: relative; z-index: 2; width: 302px; height: 652px; margin: 0; overflow: hidden; border: 8px solid var(--ink); border-radius: 39px; background: #edf1f5; box-shadow: 0 28px 65px rgba(23,51,47,.16); }
.single-device::after { content: ""; position: absolute; top: 7px; left: 50%; width: 88px; height: 21px; border-radius: 0 0 14px 14px; background: var(--ink); transform: translateX(-50%); }
.figure-index { position: absolute; z-index: 3; top: 8%; right: 4%; color: var(--green); font-family: Georgia, serif; font-size: 14px; font-style: italic; }
.feature-kicker { display: flex; align-items: center; gap: 10px; margin: 0 0 28px; color: var(--green); font-size: 12px; font-weight: 700; letter-spacing: .12em; }
.feature-kicker svg { width: 22px; height: 22px; fill: currentColor; }
.feature-copy h2 { font-size: clamp(40px,4.3vw,58px); line-height: 1.3; }
.feature-copy > p:not(.feature-kicker) { max-width: 530px; margin: 28px 0 0; color: var(--muted); font-size: 15px; line-height: 2; }
.feature-copy ul { display: grid; gap: 15px; margin: 34px 0 0; padding: 0; list-style: none; }
.feature-copy li { display: flex; align-items: center; gap: 11px; font-size: 13px; font-weight: 600; }
.feature-copy li svg { width: 18px; height: 18px; color: var(--green); }

.service-section { padding: 130px 0; background: var(--paper); }
.service-heading { display: flex; align-items: end; justify-content: space-between; margin-bottom: 58px; padding-bottom: 28px; border-bottom: 1px solid var(--line); }
.service-heading .section-label { margin: 0 30px 8px 0; }
.service-heading h2 { margin: 0; font-family: "Songti SC", STSong, SimSun, serif; font-size: clamp(40px,4vw,56px); }
.service-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.service-story { overflow: hidden; border: 1px solid var(--line); background: #fff; }
.story-copy { min-height: 330px; padding: 38px; }
.story-copy > span { float: right; color: #82908c; font-family: Georgia,serif; font-size: 13px; font-style: italic; }
.story-copy h3 { max-width: 430px; margin: 0 0 19px; font-family: "Songti SC", STSong, SimSun, serif; font-size: 33px; line-height: 1.4; }
.story-copy > p:last-child { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.9; }
.story-screen { height: 490px; overflow: hidden; border-top: 1px solid var(--line); background: #e8edf2; }
.story-screen img { display: block; width: 100%; height: auto; transform: translateY(-42px); }
.event-story-screen img { transform: translateY(-42px); }

.scenes-section { padding: 130px 0; color: #fff; background: var(--ink); }
.scenes-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 120px; }
.scenes-intro { align-self: start; }
.scenes-intro .section-label { color: #8fc0b6; }
.scenes-intro h2 { font-size: clamp(42px,4.4vw,60px); line-height: 1.3; }
.scenes-intro > p:last-child { max-width: 480px; margin: 30px 0 0; color: #aabbb7; font-size: 14px; line-height: 2; }
.scene-list { border-top: 1px solid rgba(255,255,255,.18); }
.scene-list article { display: grid; grid-template-columns: 50px 1fr 38px; align-items: center; gap: 20px; min-height: 150px; border-bottom: 1px solid rgba(255,255,255,.18); }
.scene-list article > span { color: #78918b; font-family: Georgia, serif; font-size: 13px; font-style: italic; }
.scene-list h3 { margin: 0 0 8px; font-size: 20px; }.scene-list p { margin: 0; color: #9fb1ad; font-size: 12px; line-height: 1.8; }
.scene-list svg { width: 30px; height: 30px; color: #8abdb2; fill: currentColor; }

.about-section { padding: 140px 0; background: #e8e6dd; }
.about-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 130px; }
.about-title h2 { font-size: clamp(42px,4.2vw,58px); line-height: 1.35; }
.about-copy > p { margin: 0 0 21px; color: #5c6d68; font-size: 15px; line-height: 2; }
.about-copy .about-lead { color: var(--ink); font-family: "Songti SC", STSong, SimSun, serif; font-size: 24px; line-height: 1.7; }
.company-values { display: grid; grid-template-columns: repeat(3,1fr); margin-top: 48px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.company-values div { display: grid; gap: 11px; min-height: 135px; align-content: center; padding: 20px; border-right: 1px solid var(--line); }
.company-values div:first-child { padding-left: 0; }.company-values div:last-child { border-right: 0; }
.company-values strong { color: var(--green); font-family: "Songti SC",STSong,SimSun,serif; font-size: 24px; }.company-values span { color: #6c7b77; font-size: 10px; }

.privacy-section { padding: 125px 0; background: #fff; }
.privacy-layout { display: grid; grid-template-columns: .82fr 1.18fr; gap: 130px; }
.privacy-title > span { display: inline-block; margin-bottom: 26px; padding-bottom: 7px; border-bottom: 1px solid var(--green); color: var(--green); font-size: 12px; font-weight: 700; }
.privacy-title h2 { font-size: clamp(40px,4.1vw,56px); line-height: 1.35; }
.privacy-content > p { margin: 0; color: var(--muted); font-size: 15px; line-height: 2; }
.privacy-principles { display: grid; grid-template-columns: repeat(3,1fr); margin-top: 42px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.privacy-principles > div { min-height: 150px; padding: 22px 18px; border-right: 1px solid var(--line); }.privacy-principles > div:first-child { padding-left: 0; }.privacy-principles > div:last-child { border-right: 0; }
.privacy-principles span { display: block; margin-bottom: 24px; color: #81908c; font-family: Georgia,serif; font-size: 12px; font-style: italic; }.privacy-principles strong { font-size: 15px; }.privacy-principles p { margin: 7px 0 0; color: #778682; font-size: 10px; line-height: 1.7; }
.legal-links { display: flex; gap: 28px; margin-top: 28px; }.legal-links a { display: inline-flex; align-items: center; gap: 8px; padding-bottom: 5px; border-bottom: 1px solid var(--green); color: var(--green); font-size: 12px; font-weight: 700; }.legal-links svg { width: 15px; height: 15px; }

.contact-section { padding: 80px 0; background: var(--green); }
.contact-inner { display: flex; align-items: center; justify-content: space-between; color: #fff; }
.contact-inner p { margin: 0 0 12px; color: #b7dcd4; font-size: 12px; letter-spacing: .12em; }.contact-inner h2 { margin: 0; font-family: "Songti SC",STSong,SimSun,serif; font-size: clamp(36px,4vw,52px); }
.contact-inner > div:last-child { display: flex; align-items: center; gap: 32px; }.contact-button { min-height: 50px; padding: 0 21px; color: var(--green-dark); background: #fff; }.contact-phone { display: grid; gap: 5px; }.contact-phone small { color: #c4e1db; font-size: 10px; }.contact-phone strong { font-size: 16px; }

.site-footer { color: #dbe4e1; background: #102622; }
.footer-main { display: grid; grid-template-columns: 1.7fr repeat(3,1fr); gap: 55px; padding: 70px 0 52px; }
.footer-brand .brand > svg { color: #77b4a7; }.footer-brand .brand small { color: #869b96; }.footer-brand p { max-width: 280px; margin: 22px 0 0; color: #819690; font-size: 11px; line-height: 1.8; }
.footer-main > div:not(.footer-brand) { display: grid; align-content: start; gap: 12px; }.footer-main strong { margin-bottom: 8px; color: #fff; font-size: 12px; }.footer-main a,.footer-main span { color: #879b96; font-size: 10px; }.footer-main a:hover { color: #fff; }
.footer-bottom { display: flex; min-height: 72px; align-items: center; justify-content: space-between; border-top: 1px solid rgba(255,255,255,.1); color: #6e8580; font-size: 10px; }.footer-bottom i { font-style: normal; }.footer-bottom div { display: flex; gap: 22px; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; }.reveal { opacity: 1; transform: none; transition: none; } }

@media (max-width: 1040px) {
  .desktop-nav { gap: 22px; }.service-phone { display: none; }.header-actions { margin-left: 25px; }
  .hero-layout { gap: 30px; }.real-product-stage { transform: scale(.88); transform-origin: center; }
  .feature-row { gap: 75px; }.scenes-layout,.about-layout,.privacy-layout { gap: 70px; }
}

@media (max-width: 820px) {
  .container { width: min(calc(100% - 36px), var(--container)); }
  .desktop-nav,.header-actions > .app-entry,.service-phone { display: none; }.header-actions { margin-left: auto; }.menu-button { display: flex; }
  .mobile-nav { position: fixed; top: 78px; right: 0; left: 0; display: grid; max-height: 0; overflow: hidden; padding: 0 18px; background: rgba(251,250,246,.98); opacity: 0; transition: .3s ease; }
  .menu-active .mobile-nav { max-height: 430px; padding: 10px 18px 28px; border-bottom: 1px solid var(--line); opacity: 1; }.mobile-nav > a:not(.app-entry) { padding: 16px 5px; border-bottom: 1px solid var(--line); font-size: 14px; font-weight: 600; }.mobile-nav .app-entry { justify-content: center; margin-top: 18px; color: #fff; background: var(--green); border-color: var(--green); }
  .hero { padding-top: 118px; }.hero-layout { grid-template-columns: 1fr; text-align: center; }.hero-copy .section-label { margin-bottom: 18px; }.hero-description { margin-right: auto; margin-left: auto; }.hero-actions { justify-content: center; }.real-product-stage { width: 100%; margin-top: 28px; transform: scale(.88); }.hero-footnote { margin-top: 20px; }
  .intro-grid,.feature-row,.scenes-layout,.about-layout,.privacy-layout { grid-template-columns: 1fr; }.intro-grid { gap: 38px; }.feature-row { gap: 55px; }.feature-row-reverse .feature-screen { order: 1; }.feature-row-reverse .feature-copy { order: 2; }.feature-copy { text-align: center; }.feature-kicker,.feature-copy li { justify-content: center; }
  .service-heading { display: block; text-align: center; }.service-heading .section-label { margin: 0 0 15px; }.service-pair { grid-template-columns: 1fr; }
  .scenes-intro,.about-title,.privacy-title { text-align: center; }.scenes-intro > p:last-child { margin-right: auto; margin-left: auto; }.scene-list { margin-top: 25px; }
  .about-layout,.privacy-layout { gap: 48px; }.contact-inner { display: grid; justify-items: center; gap: 40px; text-align: center; }
  .footer-main { grid-template-columns: repeat(3,1fr); }.footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 560px) {
  .container { width: min(calc(100% - 28px), var(--container)); }.header-inner { height: 70px; }.mobile-nav { top: 70px; }.brand > svg { width: 38px; height: 38px; }.brand strong { font-size: 18px; }
  .hero { min-height: auto; padding-top: 106px; }.hero-copy h1 { font-size: 43px; line-height: 1.25; }.hero-description { margin-top: 23px; font-size: 14px; line-height: 1.9; }.hero-actions { flex-direction: column; gap: 20px; }.service-note { font-size: 10px; line-height: 1.7; }
  .real-product-stage { width: 124%; height: 580px; margin-left: -12%; transform: scale(.76); transform-origin: top center; }.hero-footnote { grid-template-columns: 38px 1fr; margin-top: -110px; }.hero-footnote p { font-size: 14px; }
  .product-intro,.feature-section,.service-section,.scenes-section,.about-section,.privacy-section { padding: 80px 0; }.product-intro h2,.feature-copy h2,.scenes-intro h2,.about-title h2,.privacy-title h2 { font-size: 34px; }.intro-grid > div:last-child > p,.feature-copy > p:not(.feature-kicker),.about-copy > p,.privacy-content > p { font-size: 13px; }
  .feature-screen { min-height: 590px; }.single-device { width: 265px; height: 572px; }.feature-copy ul { justify-items: start; width: fit-content; margin-right: auto; margin-left: auto; }.feature-copy li { justify-content: flex-start; text-align: left; }
  .service-heading h2 { font-size: 34px; }.story-copy { min-height: 300px; padding: 28px; }.story-copy h3 { font-size: 27px; }.story-screen { height: 390px; }
  .scene-list article { grid-template-columns: 34px 1fr 27px; gap: 10px; min-height: 135px; }.scene-list svg { width: 25px; height: 25px; }
  .about-copy .about-lead { font-size: 20px; }.company-values { grid-template-columns: 1fr; }.company-values div { min-height: 90px; padding: 18px 0; border-right: 0; border-bottom: 1px solid var(--line); }.company-values div:last-child { border-bottom: 0; }
  .privacy-principles { grid-template-columns: 1fr; }.privacy-principles > div { min-height: 105px; padding: 20px 0; border-right: 0; border-bottom: 1px solid var(--line); }.privacy-principles > div:last-child { border-bottom: 0; }.privacy-principles span { float: left; width: 45px; margin: 0; }
  .contact-section { padding: 62px 0; }.contact-inner h2 { font-size: 34px; }.contact-inner > div:last-child { flex-direction: column; gap: 23px; }
  .footer-main { grid-template-columns: 1fr 1fr; gap: 34px 20px; padding: 52px 0 38px; }.footer-brand { grid-column: 1 / -1; }.footer-main > div:last-child { grid-column: 1 / -1; }.footer-bottom { flex-direction: column; justify-content: center; gap: 12px; text-align: center; }
}