.hero { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: center; padding-block: 48px 74px; }
.hero h1 { font-size: clamp(44px, 4.6vw, 68px); letter-spacing: -.055em; font-weight: 650; }
.hero-slogan { font-size: clamp(25px, 2.55vw, 36px); margin-top: 22px; letter-spacing: -.045em; font-weight: 500; }
.hero-description { margin-top: 30px; font-size: 18px; color: var(--muted); line-height: 1.9; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 26px; margin-top: 36px; }
.hero-actions .text-link { font-size: 16px; }
.hero-actions .icon { width: 23px; height: 23px; }
.hero-note { margin-top: 28px; }
.wechat-notice { margin-top: 16px; max-width: 440px; color: var(--accent); }
.hero-stage { position: relative; height: 620px; background: var(--stage); border-radius: 24px; overflow: hidden; }
.hero-screen { position: absolute; margin: 0; width: 242px; }
.hero-screen img { width: 100%; border: 7px solid var(--bg); border-radius: 30px; }
.hero-screen figcaption { margin-top: 13px; text-align: center; font-size: 14px; }
.screen-back { right: 24px; top: 28px; width: 218px; }
.screen-front { left: 28px; top: 50px; }
.visual-caption { display: flex; align-items: center; justify-content: flex-end; gap: 14px; margin-top: 20px; }
.visual-caption > .icon { color: var(--accent); width: 36px; height: 36px; }
.section { padding-block: 76px; }
.section-lead { display: grid; grid-template-columns: 1.2fr 1fr; align-items: start; gap: 36px; margin-bottom: 44px; }
.section-lead .section-intro { margin-top: 0; justify-self: end; width: 340px; max-width: 100%; }
.feature-layout { display: grid; grid-template-columns: 1fr 2fr; gap: 56px; }
.feature-highlight { padding: 34px; background: var(--surface-high); border-radius: 20px; align-self: stretch; display: flex; flex-direction: column; align-items: flex-start; }
.feature-highlight > .icon { color: var(--accent); width: 42px; height: 42px; margin-bottom: 40px; }
.feature-highlight h3 { font-size: 32px; font-weight: 500; }
.feature-highlight > p:not(.note) { margin-top: 22px; }
.feature-highlight > .text-link { margin-block: 25px 12px; color: var(--accent); }
.feature-highlight .note { margin-top: auto; padding-top: 24px; }
.feature-list { display: grid; grid-template-columns: 1fr 1fr; gap: 38px 32px; padding: 16px 0; margin: 0; list-style: none; }
.feature-list li { display: flex; align-items: flex-start; gap: 18px; }
.feature-list .icon { color: var(--accent); flex-shrink: 0; margin-top: 2px; }
.feature-list h3 { font-size: 20px; font-weight: 550; }
.feature-list p { margin-top: 13px; }
.feature-disclaimer { margin-top: 28px; max-width: 70ch; }
.showcase { background: var(--surface); margin-block: 52px; }
.screenshot-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.screenshot-grid figure { margin: 0; min-width: 0; }
.screenshot-surface { padding: 26px 22px 0; background: var(--surface-high); border-radius: 18px; overflow: hidden; }
.screenshot-surface a { display: block; border-radius: 21px 21px 0 0; overflow: hidden; }
.screenshot-surface img { width: 100%; border-radius: 21px 21px 0 0; transition: transform .35s; }
.screenshot-surface a:hover img { transform: translateY(-6px); }
.screenshot-grid figure:nth-child(2) .screenshot-surface { background: var(--stage); }
.screenshot-grid figure:nth-child(4) .screenshot-surface { background: #363c33; }
.screenshot-grid figcaption { padding-top: 23px; }
.screenshot-grid h3 { font-size: 20px; font-weight: 550; }
.screenshot-grid figcaption p { margin-top: 9px; color: var(--muted); }
.screenshot-note { margin-top: 30px; max-width: 70ch; }
.download-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.download-card { background: var(--surface); border-radius: 20px; padding: 32px 28px; text-align: center; display: flex; flex-direction: column; align-items: center; }
.download-title { display: flex; justify-content: center; align-items: center; gap: 12px; }
.download-title h3 { font-size: 24px; font-weight: 550; }
.download-title .icon { width: 27px; height: 27px; }
.platform-description { margin-top: 8px; color: var(--muted); }
.qr-link, .missing-code, .coming-soon { width: 184px; height: 184px; margin-block: 28px; flex-shrink: 0; }
.qr-link { background: var(--white); border-radius: 8px; overflow: hidden; transition: transform .2s; }
.qr-link:hover { transform: scale(1.03); }
.qr-link img { width: 184px; height: 184px; }
.missing-code { background: var(--surface-high); border-radius: 8px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 13px; }
.missing-code > .icon { width: 42px; height: 42px; color: var(--muted); }
.missing-code strong { font-weight: 500; }
.missing-code p { font-size: 13px; color: var(--muted); }
.coming-soon { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 22px; }
.coming-soon > .icon { width: 48px; height: 48px; color: var(--muted); }
.coming-soon strong { font-size: 24px; font-weight: 500; }
.download-caption { margin-bottom: 18px; }
.download-card .note { margin-top: 12px; line-height: 1.9; }
.ios-card { background: var(--stage); }
.ios-card .button { width: 100%; }
.download-help { margin-top: 28px; max-width: 70ch; }
.contact { display: grid; grid-template-columns: 1.15fr 1fr; gap: 72px; align-items: center; margin-top: 50px; padding-block: 72px 100px; }
.contact .section-heading { max-width: 520px; }
.contact-detail { background: var(--surface); border-radius: 20px; padding: 32px; }
.contact-email { font-size: clamp(20px, 2.1vw, 30px); letter-spacing: -.035em; color: var(--accent); overflow-wrap: anywhere; }
.contact-email:hover { text-decoration: underline; text-underline-offset: 6px; }
.contact-detail > p { margin-top: 12px; }
.contact-detail > .note { margin-top: 22px; }
.footer { padding-block: 40px 32px; }
.footer-top { display: flex; justify-content: space-between; align-items: center; gap: 30px; }
.footer-links { display: flex; gap: 28px; flex-wrap: wrap; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; margin-top: 38px; font-size: 14px; color: var(--muted); }
.image-dialog { padding: 20px; background: var(--surface); color: var(--ink); border: 0; border-radius: 20px; width: min(570px, calc(100% - 28px)); max-height: calc(100svh - 32px); }
.image-dialog::backdrop { background: rgb(0 0 0 / 85%); }
.dialog-toolbar { display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.dialog-toolbar button { background: var(--surface-high); color: var(--ink); border: 0; border-radius: 100px; min-height: 44px; padding-inline: 20px; }
.dialog-image { max-height: calc(100svh - 164px); width: auto; margin: 18px auto 0; border-radius: 18px; }
.dialog-caption { margin-top: 12px; font-size: 14px; color: var(--muted); text-align: center; }
.reveal-in { animation: reveal-in .6s both; }
@keyframes reveal-in { from { opacity: .35; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }