:root { --ink: #1d1d1f; --blue: #0071e3; --blue-bright: #2997ff; --soft: #f5f5f7; --ice: #edf5fb; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: #fff; color: var(--ink); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans CJK SC", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0; }
a { color: inherit; }
.global-nav { position: sticky; z-index: 50; top: 0; height: 48px; display: flex; align-items: center; justify-content: space-between; padding: 0 max(22px, calc((100vw - 1024px) / 2)); background: rgba(250,250,252,.82); color: #252527; backdrop-filter: saturate(180%) blur(20px); }
.symbol { display: grid; width: 28px; height: 28px; place-items: center; border: 1.5px solid #252527; border-radius: 50%; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif; font-size: 9px; font-weight: 750; text-decoration: none; }
.global-nav nav { display: flex; gap: clamp(22px, 4vw, 42px); }
.global-nav nav a { font-size: 14px; font-weight: 600; text-decoration: none; }
.global-nav nav a:hover { color: var(--blue); }
.light-section, .dark-section { position: relative; overflow: hidden; }
.hero { min-height: calc(100svh - 48px); display: flex; flex-direction: column; align-items: center; background: var(--ice); text-align: center; }
.headline { position: relative; z-index: 2; width: min(1100px, 100%); padding: clamp(50px, 7vh, 78px) 24px 0; }
.product-name { margin: 0 0 9px; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif; font-size: clamp(21px, 2vw, 29px); font-weight: 650; }
h1, h2, p { letter-spacing: 0; }
h1 { margin: 0; font-size: clamp(44px, 5vw, 70px); font-weight: 700; line-height: 1.18; }
.links { display: flex; justify-content: center; gap: 34px; margin-top: 22px; }
.links a, .statement-copy > a { color: var(--blue); font-size: clamp(18px, 1.45vw, 21px); font-weight: 600; text-decoration: none; }
.links a:hover, .statement-copy > a:hover { text-decoration: underline; }
.hero-product { width: 100%; min-height: 420px; flex: 1; display: block; object-fit: cover; object-position: center; mix-blend-mode: multiply; }
.statement { min-height: 92svh; display: grid; align-items: center; padding: 11vh clamp(24px, 8vw, 130px); background: #020406; color: #f5f5f7; }
.dark-product { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; }
.statement::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(0,0,0,.32), transparent 56%); }
.statement-copy { position: relative; z-index: 2; width: min(720px, 52vw); }
.statement-copy p, .detail-copy p, .closing-copy p { margin: 0 0 15px; font-size: clamp(21px, 1.8vw, 27px); font-weight: 600; line-height: 1.4; }
.statement h2, .detail h2, .closing h2 { margin: 0; font-size: clamp(52px, 7vw, 96px); font-weight: 700; line-height: 1.12; }
.statement h2 span { color: #a7c9e8; }
.statement-copy > a { display: inline-block; margin-top: 30px; color: var(--blue-bright); }
.detail { min-height: 100svh; display: flex; flex-direction: column; align-items: center; justify-content: space-between; padding: 12vh 24px 0; background: #fff; text-align: center; }
.detail-copy { position: relative; z-index: 2; width: min(1100px, 100%); }
.detail h2 { font-size: clamp(50px, 6.5vw, 90px); }
.detail h2 span { background: linear-gradient(90deg, #0071e3, #53b7df); -webkit-background-clip: text; color: transparent; }
.detail-product { display: block; width: 100vw; height: min(62svh, 720px); min-height: 520px; object-fit: cover; object-position: center 58%; mix-blend-mode: multiply; }
.closing { min-height: 72svh; display: grid; place-items: center; padding: 80px 24px; background: radial-gradient(circle at 50% 85%, #15334c 0, #07111a 34%, #020406 70%); color: #f5f5f7; text-align: center; }
.closing h2 { background: linear-gradient(90deg, #f5f5f7 0%, #dcecf8 22%, #3a9fe8 50%, #dcecf8 78%, #f5f5f7 100%); -webkit-background-clip: text; color: transparent; }
.closing .links a { color: #2997ff; }
footer { padding: 34px max(22px, calc((100vw - 980px) / 2)); background: var(--soft); color: #6e6e73; font-size: 12px; }
footer > div { display: flex; gap: 12px; padding-bottom: 18px; border-bottom: 1px solid #d2d2d7; }
footer strong, footer small { color: #424245; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif; }
footer nav { display: flex; gap: 24px; padding: 18px 0; }
footer a { text-decoration: none; } footer a:hover { text-decoration: underline; }
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s ease, transform .8s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
@media (max-width: 600px) {
  .global-nav { padding: 0 18px; }
  .global-nav nav { gap: 18px; }
  .headline { padding: 42px 18px 0; }
  .product-name { margin-bottom: 8px; font-size: 20px; }
  h1 { font-size: clamp(38px, 11vw, 46px); line-height: 1.2; }
  .links { gap: 20px; margin-top: 15px; }
  .links a, .statement-copy > a { font-size: 17px; }
  .hero-product { min-height: 410px; object-position: 42% center; }
  .statement { min-height: 82svh; padding: 76px 22px; align-items: start; }
  .statement-copy { width: 100%; }
  .dark-product { object-position: 61% center; opacity: .82; }
  .statement::after { background: linear-gradient(0deg, rgba(0,0,0,.15), rgba(0,0,0,.82) 78%); }
  .statement-copy p, .detail-copy p, .closing-copy p { margin-bottom: 10px; font-size: 19px; }
  .statement h2, .detail h2, .closing h2 { font-size: clamp(42px, 12.5vw, 52px); line-height: 1.16; }
  .detail { min-height: 84svh; padding: 76px 18px 0; }
  .detail-product { width: calc(100% + 36px); height: 48svh; min-height: 390px; max-width: none; object-position: 40% center; }
  .closing { min-height: 60svh; }
  footer > div { flex-direction: column; }
}
@media (min-width: 601px) and (max-width: 1024px) {
  .headline { padding-top: 58px; }
  .hero-product { object-position: 45% center; }
  .statement { min-height: 82svh; padding-inline: 7vw; }
  .statement-copy { width: 54vw; }
  .detail { min-height: 88svh; padding-top: 9vh; }
}
@media (min-width: 1600px) {
  .hero-product { max-height: 760px; }
  .statement, .detail { min-height: 900px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .reveal { opacity: 1; transform: none; transition: none; } }

/* Privacy and support */
.legal-page { background: #fff; }
.legal-hero { min-height: 520px; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 84px 24px 70px; background: var(--ice); text-align: center; }
.legal-label { margin: 0 0 18px; color: #66727c; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif; font-size: 12px; font-weight: 700; }
.legal-hero h1 { margin: 0; font-size: clamp(56px, 7vw, 92px); line-height: 1.15; }
.legal-intro { margin: 24px 0 0; color: #5c6570; font-size: clamp(22px, 2.2vw, 30px); font-weight: 600; line-height: 1.55; }
.updated { margin: 32px 0 0; color: #78828b; font-size: 15px; }
.legal-content { width: min(940px, calc(100% - 48px)); margin: 0 auto; padding: 72px 0 110px; }
.legal-content section { display: grid; grid-template-columns: 72px 1fr; gap: 28px; padding: 38px 0; border-top: 1px solid #d8dce0; }
.legal-content section > span, .support-grid article > span { color: var(--blue); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif; font-size: 13px; font-weight: 700; }
.legal-content h2, .support-grid h2, .support-closing h2 { margin: 0; font-size: clamp(28px, 3vw, 40px); line-height: 1.25; }
.legal-content p, .support-grid p { margin: 12px 0 0; color: #5f6871; font-size: clamp(18px, 1.8vw, 22px); line-height: 1.85; }
.legal-content p a { margin: 0 5px; color: var(--blue); text-decoration: none; }
.support-hero { min-height: 580px; background: radial-gradient(circle at 50% 110%, #d7ebfa, #edf5fb 52%, #f7fafc); }
.support-grid { width: min(1120px, calc(100% - 48px)); display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); margin: 0 auto; padding: 80px 0; }
.support-grid article { min-height: 290px; padding: 36px 42px; border-top: 1px solid #d8dce0; }
.support-grid article:nth-child(odd) { border-right: 1px solid #d8dce0; }
.support-grid h2 { margin-top: 30px; }
@media (max-width: 600px) {
  .legal-hero, .support-hero { min-height: 470px; padding: 68px 20px 58px; }
  .legal-hero h1 { font-size: 54px; }
  .legal-intro { font-size: 21px; }
  .legal-content { width: calc(100% - 40px); padding: 44px 0 76px; }
  .legal-content section { grid-template-columns: 36px 1fr; gap: 14px; padding: 30px 0; }
  .legal-content h2, .support-grid h2 { font-size: 29px; }
  .legal-content p, .support-grid p { font-size: 18px; line-height: 1.75; }
  .support-grid { width: calc(100% - 40px); grid-template-columns: 1fr; padding: 48px 0; }
  .support-grid article { min-height: 0; padding: 30px 0; }
  .support-grid article:nth-child(odd) { border-right: 0; }
  .support-grid h2 { margin-top: 18px; }
}