:root {
  --ink: #111216;
  --muted: #777a81;
  --paper: #f5f5f3;
  --line: rgba(17, 18, 22, .16);
  --coral: #ef7783;
  --content: min(1180px, calc(100% - 64px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; overflow-x: hidden; color: var(--ink); background: var(--paper); font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif; letter-spacing: 0; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input { font: inherit; }
main { min-height: 70vh; }

.site-header { position: absolute; z-index: 20; top: 0; left: 50%; width: var(--content); height: 96px; transform: translateX(-50%); display: flex; align-items: center; justify-content: space-between; }
.brand-link { display: inline-flex; }
.wordmark { position: relative; display: grid; width: 142px; grid-template-columns: 1fr auto; color: #111; line-height: 1; }
.wordmark strong { grid-column: 1 / -1; font: 700 34px/1 Arial, sans-serif; }
.wordmark small { font-size: 18px; font-weight: 700; align-self: end; }
.wordmark i { width: 28px; height: 16px; margin: -1px 3px 0 34px; border: 5px solid var(--coral); border-top: 0; border-radius: 0 0 18px 18px; }
.wordmark-light { color: #fff; }
.site-nav { display: flex; align-items: center; gap: 54px; }
.site-nav a { position: relative; padding: 12px 0; font-size: 16px; }
.site-nav a::after { position: absolute; left: 50%; bottom: 0; width: 0; height: 2px; content: ""; background: currentColor; transition: width .2s ease, left .2s ease; }
.site-nav a:hover::after, .site-nav a.active::after { left: 0; width: 100%; }
.header-dark { color: #fff; }
.header-light { color: #111; }
.menu-toggle { display: none; width: 42px; height: 42px; padding: 9px; border: 0; background: transparent; }
.menu-toggle span { display: block; height: 2px; margin: 5px 0; background: currentColor; }

.button { display: inline-flex; min-width: 156px; height: 50px; align-items: center; justify-content: center; border: 1px solid #fff; font-size: 15px; transition: background .2s, color .2s; }
.button-light { color: #111; background: #fff; }
.button-outline { color: #fff; background: transparent; }
.button:hover { color: #fff; background: var(--coral); border-color: var(--coral); }

.home-hero { position: relative; min-height: 760px; overflow: hidden; color: #fff; background: #050608; }
.hero-copy { position: relative; z-index: 3; width: var(--content); margin: auto; padding-top: 250px; }
.hero-copy > span { color: #a7a9ad; font-size: 12px; }
.hero-copy h1 { max-width: 620px; margin: 20px 0; font-size: 52px; line-height: 1.25; }
.hero-copy h1 em { font-style: normal; font-size: 44px; }
.hero-copy p { margin: 0 0 42px; color: #d4d5d8; font-size: 18px; }
.hero-copy > div { display: flex; gap: 16px; }
.hero-visual { position: absolute; z-index: 1; inset: 0 0 0 37%; background: linear-gradient(90deg, #050608 0, transparent 32%), url('/assets/hero-man-products.jpg') center/cover no-repeat; }
.hero-visual::before { position: absolute; inset: 0 auto 0 0; width: 22%; content: ""; background: linear-gradient(90deg, #050608 0 72%, transparent); }

.trust-strip { min-height: 110px; display: grid; grid-template-columns: repeat(4, 1fr); align-items: center; padding: 0 max(40px, calc((100% - 1120px) / 2)); background: #fff; }
.trust-strip div { display: flex; align-items: center; justify-content: center; gap: 13px; font-size: 18px; font-weight: 700; }
.trust-strip b { width: 38px; height: 38px; display: grid; place-items: center; border: 1px solid #202226; border-radius: 50%; font-size: 13px; }

.home-products { width: var(--content); margin: 0 auto; padding: 84px 0 100px; }
.section-title { text-align: center; margin-bottom: 38px; }
.section-title span, .ornament-title span, .research-hero span, .patent-section span, .research-men span, .about-intro > span, .about-cards span, .product-detail > div > span { color: #8b8d91; font-size: 11px; }
.section-title h2 { margin: 10px 0 0; font-size: 27px; font-weight: 600; }
.section-title.compact { margin: 68px 0 28px; }
.section-title.compact h2 { font-size: 20px; }
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.product-card { min-width: 0; overflow: hidden; background: #17191d; color: #fff; transition: transform .25s; }
.product-card:hover { transform: translateY(-5px); }
.product-image { height: 430px; overflow: hidden; background: #17191d; }
.product-image img { width: 100%; height: 100%; object-fit: contain; object-position: center bottom; }
.product-copy { position: relative; padding: 28px 30px 34px; border-top: 1px solid rgba(255,255,255,.08); }
.product-copy h2 { margin: 0; font-size: 21px; }
.product-copy p { margin: 10px 0 0; color: #aeb0b5; }
.product-copy span { position: absolute; right: 26px; bottom: 28px; font-size: 26px; }
.series-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.series-grid article { position: relative; min-height: 210px; overflow: hidden; padding: 34px; border: 1px solid #d7d8d8; background: linear-gradient(135deg, #e9ebe7, #c9cfca); }
.series-grid article:nth-child(2) { color: #fff; background: linear-gradient(135deg, #777c7b, #202326); }
.series-grid article:nth-child(3) { background: linear-gradient(135deg, #e5e6e2, #a5aca5); }
.series-grid span { display: block; margin-bottom: 12px; font-size: 22px; font-weight: 700; }
.series-grid strong { line-height: 1.8; font-weight: 500; }
.series-grid i { position: absolute; right: 24px; bottom: -10px; color: rgba(255,255,255,.5); font: 700 82px/1 Arial; }

.mission-band { min-height: 300px; padding: 72px 24px 60px; color: #fff; text-align: center; background: linear-gradient(rgba(20,24,28,.42), rgba(20,24,28,.7)), url('/assets/dark-texture.jpg') center/cover; }
.mission-band > span { font: 700 42px/1.2 Arial, sans-serif; }
.mission-band > div { width: min(760px, 100%); margin: 50px auto 0; display: grid; grid-template-columns: repeat(3, 1fr); }
.mission-band p { margin: 0; color: #d9dbdf; }
.mission-band b { display: block; margin-bottom: 10px; color: #fff; }

.site-footer { color: #c9cacf; background: #111317; }
.footer-inner { width: var(--content); margin: auto; padding: 56px 0 44px; display: grid; grid-template-columns: 1.4fr 1fr 1.5fr; gap: 70px; }
.footer-brand p { margin-top: 24px; }
.footer-inner > div:not(.footer-brand) { display: flex; flex-direction: column; gap: 9px; }
.footer-inner strong { margin-bottom: 8px; color: #fff; }
.footer-inner a { font-size: 14px; }
.footer-inner a:hover { color: #fff; }
.legal { min-height: 54px; display: flex; align-items: center; justify-content: center; gap: 12px; padding: 12px 24px; border-top: 1px solid rgba(255,255,255,.08); color: #85878d; font-size: 13px; }
.legal i { font-style: normal; }

.products-page { background: #090a0c; }
.products-hero { min-height: 1630px; padding: 150px max(32px, calc((100% - 1180px) / 2)) 120px; color: #fff; text-align: center; background: radial-gradient(circle at 50% 25%, #26282d, #090a0c 55%), url('/assets/dark-texture.jpg') center/cover; }
.center-logo { display: flex; justify-content: center; }
.products-hero > span { display: block; margin-top: 70px; color: #92959b; font-size: 11px; }
.products-hero > h1 { margin: 18px 0; font-size: 48px; line-height: 1.45; }
.products-hero > p { margin: 0 0 70px; color: #aeb0b6; font-size: 18px; }
.products-hero .product-grid { text-align: left; }
.products-hero .product-image { height: 650px; }

.smoke-shell { padding: 150px max(28px, calc((100% - 1240px) / 2)) 90px; color: #111; background: radial-gradient(circle at 20% 30%, #41444a, #0c0d0f 60%); }
.white-panel { margin: 0 auto 28px; border-radius: 42px; background: #f8f8f7; }
.brand-intro { min-height: 730px; display: grid; grid-template-columns: 1.15fr .85fr; overflow: hidden; }
.brand-intro > div { padding: 54px 24px 54px 56px; }
.brand-intro > div > p { max-width: 650px; margin: 28px 0; line-height: 2.05; font-size: 16px; }
.brand-intro > img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.ornament-title { text-align: center; }
.ornament-title h1, .ornament-title h2 { margin: 8px 0 0; font-size: 36px; }
.care-system { padding: 54px 48px 64px; }
.care-system > div { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 46px; }
.care-system article { min-height: 310px; padding: 10px 34px 20px; border-right: 1px solid #d4d5d4; }
.care-system article:last-child { border: 0; }
.care-system b { display: grid; width: 68px; height: 68px; place-items: center; margin-bottom: 28px; color: #fff; border-radius: 50%; background: #3c3e42; }
.care-system h3 { font-size: 20px; }
.care-system p { line-height: 1.85; color: #4c4e52; }
.brand-video { padding: 44px 30px 30px; }
.video-frame { position: relative; aspect-ratio: 16/7.7; margin-top: 28px; overflow: hidden; border-radius: 20px; background: #050608; }
.video-frame img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.video-frame button { position: absolute; inset: 50% auto auto 50%; width: 92px; height: 92px; transform: translate(-50%, -50%); border: 1px solid rgba(255,255,255,.5); border-radius: 50%; background: rgba(10,10,12,.3); cursor: pointer; }
.video-frame button span { display: block; width: 0; height: 0; margin: auto; border-top: 15px solid transparent; border-bottom: 15px solid transparent; border-left: 24px solid #fff; }
.video-frame button.is-pending::after { position: absolute; top: 105px; left: 50%; width: 160px; transform: translateX(-50%); color: #fff; content: "品牌视频即将上线"; font-size: 13px; }

.research-page, .about-page { background: #f4f4f2; }
.research-hero { min-height: 790px; display: grid; grid-template-columns: .9fr 1.1fr; align-items: stretch; padding: 120px 0 0 max(40px, calc((100% - 1240px) / 2)); overflow: hidden; }
.research-hero > div { padding: 85px 50px 70px 0; }
.research-hero h1 { margin: 18px 0; font-size: 66px; }
.research-hero h2 { margin: 0 0 40px; font-size: 29px; font-weight: 500; }
.research-hero p { max-width: 520px; line-height: 2; color: #55585e; }
.research-hero img { width: 100%; height: 100%; object-fit: cover; }
.ingredient-list { padding: 55px max(40px, calc((100% - 1240px) / 2)) 70px; background: #fff; }
.ingredient-list h2 { font-size: 20px; }
.ingredient-list > div { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 26px; }
.ingredient-list span { min-height: 58px; display: flex; align-items: center; gap: 14px; border-bottom: 1px solid #ececec; color: #55585c; }
.ingredient-list b { width: 38px; color: #111; font: 700 12px/1 Arial; }
.patent-section { min-height: 550px; display: grid; grid-template-columns: 1fr 1fr; align-items: center; background: #eef0f1; }
.patent-section > img { width: 100%; height: 100%; object-fit: cover; }
.patent-section > div { padding: 70px 12%; }
.patent-section h2, .research-men h2 { margin: 12px 0 18px; font-size: 38px; }
.patent-section p, .research-men p { line-height: 1.9; color: #5f6267; }
.patent-section dl { margin: 30px 0 0; }
.patent-section dl div { padding: 15px 0; border-bottom: 1px solid #d9dadd; }
.patent-section dt { font-weight: 700; }
.patent-section dd { margin: 5px 0 0; color: #585b60; }
.research-men { min-height: 620px; display: grid; grid-template-columns: .85fr 1.15fr; align-items: center; overflow: hidden; }
.research-men > div { padding: 70px 20px 70px max(40px, calc((100vw - 1180px) / 2)); }
.research-men img { width: 100%; height: 620px; object-fit: cover; object-position: center; }

.about-intro { min-height: 900px; padding: 130px max(40px, calc((100% - 1180px) / 2)) 80px; text-align: center; background: #fafaf8; }
.about-intro > span { display: block; margin-top: 34px; }
.about-intro > h1 { margin: 14px 0; font-size: 56px; }
.about-slogan { color: #66696e; font-size: 26px; }
.about-facts { display: grid; grid-template-columns: repeat(2, 1fr); margin-top: 100px; text-align: left; }
.about-facts article { min-height: 205px; display: grid; grid-template-columns: 88px 1fr; gap: 20px; padding: 28px 56px 28px 0; border-bottom: 1px solid #d7d8d6; }
.about-facts article:nth-child(odd) { border-right: 1px solid #d7d8d6; }
.about-facts article:nth-child(even) { padding-left: 56px; }
.about-facts > article > b { display: grid; width: 64px; height: 64px; place-items: center; border: 1px solid #55585c; border-radius: 50%; font-size: 24px; }
.about-facts h2 { margin: 5px 0 20px; font-size: 22px; }
.about-facts p { margin: 0; line-height: 1.9; color: #505359; }
.about-values { min-height: 470px; padding: 62px max(40px, calc((100% - 1120px) / 2)); background: linear-gradient(90deg, rgba(241,243,244,.8), rgba(208,214,218,.45)), url('/assets/research-molecule-v2.jpg') left/cover; }
.about-values header { text-align: center; }
.about-values h2 { margin: 0; font-size: 36px; line-height: 1.55; }
.about-values > div { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 52px; }
.about-values article { text-align: center; border-right: 1px solid rgba(30,32,35,.22); }
.about-values article:last-child { border: 0; }
.about-values b { display: grid; width: 62px; height: 62px; place-items: center; margin: auto; border: 1px solid #55585c; border-radius: 50%; }
.about-values h3 { margin: 18px 0 8px; }
.about-values p { margin: 0; color: #5a5d62; }
.about-cards { width: var(--content); display: grid; grid-template-columns: 1fr 1fr; gap: 34px; margin: 0 auto; padding: 70px 0; }
.about-cards article { min-height: 480px; padding: 44px; border: 1px solid #aaa; background: rgba(255,255,255,.5); }
.about-cards h2 { margin: 10px 0 26px; font-size: 28px; }
.about-cards p { line-height: 1.85; color: #55585c; }
.about-cards article:first-child { display: grid; grid-template-columns: 1fr 1fr; align-items: center; overflow: hidden; }
.about-cards article:first-child img { width: 100%; height: 340px; object-fit: contain; object-position: center bottom; mix-blend-mode: multiply; }
.skin-tags { display: flex; gap: 12px; margin-top: 36px; }
.skin-tags i { min-width: 74px; padding: 9px 12px; border-radius: 20px; color: #fff; background: #8d9497; text-align: center; font-style: normal; }

.product-detail-page { background: #090a0c; }
.product-detail { min-height: 900px; width: var(--content); display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 80px; margin: 0 auto; padding: 150px 0 80px; color: #fff; }
.product-detail h1 { max-width: 540px; margin: 18px 0; font-size: 52px; }
.product-detail .lead { font-size: 23px; }
.product-detail p, .product-detail li { color: #aaadb3; line-height: 1.8; }
.product-detail ul { margin: 28px 0 40px; }
.product-detail img { width: 100%; height: 690px; object-fit: contain; object-position: center bottom; background: #17191d; }

.setup-page { min-height: 100vh; display: grid; place-items: center; padding: 28px; color: #fff; background: radial-gradient(circle at 75% 20%, #30343a, #08090b 60%); }
.setup-shell { width: min(520px, 100%); }
.setup-panel { padding: 48px; border: 1px solid rgba(255,255,255,.13); background: rgba(20,22,26,.82); box-shadow: 0 30px 100px rgba(0,0,0,.45); }
.setup-panel > span { display: block; margin-top: 38px; color: #8f9298; font-size: 11px; }
.setup-panel h1 { margin-bottom: 8px; }
.setup-panel p { color: #aaaeb5; line-height: 1.7; }
.setup-panel form { display: grid; gap: 18px; margin-top: 30px; }
.setup-panel label { display: grid; gap: 8px; font-size: 14px; }
.setup-panel input { width: 100%; height: 48px; padding: 0 14px; color: #fff; border: 1px solid #454850; background: #121418; }
.setup-panel small { color: #8d9097; }
.setup-panel button { height: 50px; color: #111; border: 0; background: #fff; cursor: pointer; }
.setup-error { padding: 12px 14px; color: #ffdce0; border: 1px solid #7d4148; background: #381f23; }

@media (max-width: 980px) {
  :root { --content: calc(100% - 40px); }
  .site-header { height: 78px; }
  .wordmark { width: 112px; }
  .wordmark strong { font-size: 27px; }
  .wordmark small { font-size: 15px; }
  .wordmark i { width: 22px; height: 13px; margin-left: 27px; border-width: 4px; }
  .menu-toggle { display: block; color: inherit; }
  .site-nav { position: fixed; top: 0; right: 0; width: min(360px, 88vw); height: 100vh; padding: 110px 40px; display: none; flex-direction: column; align-items: flex-start; gap: 18px; color: #fff; background: #111317; }
  .menu-open .site-nav { display: flex; }
  .menu-open .menu-toggle { position: fixed; z-index: 30; top: 18px; right: 20px; color: #fff; }
  .home-hero { min-height: 680px; }
  .hero-copy { padding-top: 180px; }
  .hero-copy h1 { font-size: 43px; }
  .hero-copy h1 em { font-size: 35px; }
  .hero-visual { left: 25%; opacity: .72; }
  .product-image { height: 340px; }
  .products-hero { min-height: auto; }
  .products-hero .product-image { height: 480px; }
  .brand-intro { grid-template-columns: 1fr; }
  .brand-intro > img { height: 520px; }
  .care-system > div { grid-template-columns: repeat(2, 1fr); }
  .care-system article:nth-child(2) { border-right: 0; }
  .research-hero { grid-template-columns: 1fr; padding: 110px 0 0; }
  .research-hero > div { padding: 60px var(--content); }
  .research-hero img { height: 500px; }
  .research-men { grid-template-columns: 1fr; }
  .research-men > div { padding: 70px 40px; }
  .about-cards { grid-template-columns: 1fr; }
  .footer-inner { gap: 35px; }
}

@media (max-width: 680px) {
  :root { --content: calc(100% - 32px); }
  .home-hero { min-height: 720px; }
  .hero-copy { padding-top: 145px; }
  .hero-copy h1 { font-size: 37px; }
  .hero-copy h1 em { font-size: 28px; }
  .hero-copy p { max-width: 260px; font-size: 15px; line-height: 1.8; }
  .hero-copy > div { flex-direction: column; width: 150px; }
  .hero-visual { inset: 0 -48% 0 0; opacity: .58; background-position: 70% center; }
  .trust-strip { grid-template-columns: repeat(2, 1fr); padding: 20px 12px; gap: 18px 4px; }
  .trust-strip div { font-size: 14px; }
  .product-grid, .series-grid { grid-template-columns: 1fr; }
  .product-image, .products-hero .product-image { height: 460px; }
  .mission-band > span { font-size: 29px; }
  .mission-band > div { grid-template-columns: 1fr; gap: 25px; }
  .footer-inner { grid-template-columns: 1fr; }
  .legal { flex-wrap: wrap; }
  .products-hero { padding: 120px 16px 70px; }
  .products-hero > span { margin-top: 45px; }
  .products-hero > h1 { font-size: 31px; }
  .smoke-shell { padding: 100px 12px 40px; }
  .white-panel { border-radius: 22px; }
  .brand-intro > div { padding: 38px 24px; }
  .brand-intro > div > p { font-size: 14px; }
  .brand-intro > img { height: 420px; }
  .care-system { padding: 40px 22px; }
  .care-system > div { grid-template-columns: 1fr; }
  .care-system article { min-height: auto; padding: 25px 5px; border-right: 0; border-bottom: 1px solid #d4d5d4; }
  .brand-video { padding: 35px 12px 12px; }
  .video-frame { aspect-ratio: 16/10; border-radius: 12px; }
  .video-frame button { width: 68px; height: 68px; }
  .research-hero > div { padding: 45px 24px; }
  .research-hero h1 { font-size: 48px; }
  .research-hero h2 { font-size: 23px; }
  .research-hero img { height: 340px; }
  .ingredient-list { padding: 45px 24px; }
  .ingredient-list > div { grid-template-columns: 1fr; }
  .patent-section, .research-men { grid-template-columns: 1fr; }
  .patent-section > img { height: 330px; }
  .patent-section > div, .research-men > div { padding: 50px 24px; }
  .patent-section h2, .research-men h2 { font-size: 31px; }
  .research-men img { height: 420px; }
  .about-intro { padding: 110px 20px 50px; }
  .about-intro > h1 { font-size: 42px; }
  .about-facts { grid-template-columns: 1fr; margin-top: 60px; }
  .about-facts article, .about-facts article:nth-child(even) { grid-template-columns: 64px 1fr; min-height: auto; padding: 28px 0; border-right: 0; }
  .about-facts > article > b { width: 48px; height: 48px; }
  .about-values { padding: 48px 18px; }
  .about-values h2 { font-size: 27px; }
  .about-values > div { grid-template-columns: repeat(2, 1fr); gap: 28px 0; }
  .about-values article:nth-child(2) { border-right: 0; }
  .about-cards article { min-height: auto; padding: 28px; }
  .about-cards article:first-child { grid-template-columns: 1fr; }
  .skin-tags { flex-wrap: wrap; }
  .product-detail { grid-template-columns: 1fr; gap: 30px; padding-top: 130px; }
  .product-detail h1 { font-size: 38px; }
  .product-detail img { height: 520px; }
  .setup-panel { padding: 32px 22px; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; }
}