.products { padding-block: 64px 100px; }
.product-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 18px; }
.product-card { min-width: 0; overflow: hidden; display: flex; flex-direction: column; border-radius: 24px; background: var(--surface); }
.product-card img { width: 100%; height: auto; display: block; aspect-ratio: 720 / 1018; object-fit: cover; }
.product-info { display: flex; flex: 1; flex-direction: column; align-items: flex-start; padding: 22px 20px 24px; }
.product-info h3 { margin: 0; font-size: 23px; line-height: 1.4; font-weight: 550; }
.product-kind { margin: 8px 0 0; color: var(--accent); font-size: 14px; line-height: 1.5; }
.product-description { flex: 1; margin: 14px 0 24px; color: var(--muted); font-size: 14px; line-height: 1.8; }
.product-price { display: flex; flex-direction: column; gap: 6px; margin: 0 0 20px; }
.product-price span { color: var(--muted); font-size: 12px; }
.product-price strong { color: var(--ink); font-size: 30px; line-height: 1.2; font-weight: 550; }
.product-link, .text-link { display: inline-flex; align-items: center; gap: 12px; padding-block: 6px; color: var(--accent); font-size: 14px; font-weight: 550; }
.product-link:hover, .text-link:hover { text-decoration: underline; text-underline-offset: 5px; }
.getting-started, .faq { padding-block: 64px; }
.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 48px; margin: 0; padding: 0; list-style: none; }
.steps li { padding-top: 24px; border-top: 1px solid var(--line); }
.step-number { color: var(--accent); font-size: 40px; line-height: 1.2; font-weight: 400; }
.steps h3 { margin: 24px 0 12px; font-size: 22px; font-weight: 550; }
.steps p { max-width: 320px; margin: 0; color: var(--muted); font-size: 16px; line-height: 1.8; }
.steps a { display: inline-block; margin-top: 14px; padding-block: 6px; color: var(--accent); text-decoration: underline; text-underline-offset: 5px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { padding: 24px 0; border-bottom: 1px solid var(--line); }
.faq-list summary { cursor: pointer; font-size: 20px; line-height: 1.6; font-weight: 550; }
.faq-list summary:focus-visible { outline: 3px solid currentColor; outline-offset: 6px; }
.faq-list p { max-width: 820px; margin: 20px 0 0; color: var(--muted); font-size: 16px; line-height: 1.9; }
.faq-list p a { color: var(--accent); text-decoration: underline; text-underline-offset: 4px; }
.detail-header { color: var(--ink); }
.detail-header .brand { justify-self: start; }
.detail-header nav { justify-self: center; }
.detail-hero { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1fr); gap: 72px; align-items: center; padding-block: 64px 88px; }
.detail-image { width: min(440px, 100%); height: auto; justify-self: center; border-radius: 24px; }
.detail-kind { margin: 0 0 18px; color: var(--accent); font-size: 17px; line-height: 1.6; }
.detail-copy h1 { margin: 0; font-size: clamp(40px, 5vw, 68px); line-height: 1.2; letter-spacing: -.045em; font-weight: 500; }
.detail-description { max-width: 540px; margin: 26px 0; color: var(--muted); font-size: 18px; line-height: 1.9; }
.detail-copy .product-price { margin: 32px 0; }
.detail-copy .product-price strong { font-size: 44px; }
.detail-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.detail-actions a { display: inline-flex; min-height: 50px; align-items: center; justify-content: center; padding: 12px 24px; border: 1px solid var(--accent); border-radius: 999px; color: var(--accent); font-size: 15px; font-weight: 550; white-space: nowrap; }
.detail-actions a:first-child { color: var(--paper); background: var(--accent); }
.detail-actions a:active { transform: scale(.98); }
.detail-facts { margin-bottom: 80px; }
.detail-facts dl { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 36px; margin: 0; }
.detail-facts dl > div { padding-top: 24px; border-top: 1px solid var(--line); }
.detail-facts dt { margin-bottom: 14px; font-size: 20px; line-height: 1.5; font-weight: 550; }
.detail-facts dd { margin: 0; color: var(--muted); font-size: 16px; line-height: 1.9; }
.detail-app { margin-bottom: 64px; padding-block: 44px; border-top: 1px solid var(--line); }
.detail-app .section-title { margin-bottom: 22px; }
.detail-app p { max-width: 680px; color: var(--muted); font-size: 16px; line-height: 1.9; }
.detail-app .text-link { font-size: 16px; }
.product-detail .faq { padding-top: 0; }
.download { position: relative; isolation: isolate; overflow: hidden; margin-bottom: 72px; padding: 64px 48px 48px; border-radius: 24px; background: var(--surface); text-align: center; }
.download::before, .download::after { content: ""; position: absolute; z-index: -1; width: 480px; height: 480px; border: 1px solid var(--line); border-radius: 50%; pointer-events: none; }
.download::before { top: -230px; left: -240px; }
.download::after { right: -240px; bottom: -240px; }
.download > p { margin: 0 0 16px; color: var(--muted); font-size: 17px; }
.download > span { display: block; margin-top: 18px; color: var(--muted); font-size: 15px; line-height: 1.8; }
.download-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 56px; width: min(600px, 100%); margin: 40px auto 0; }
.download-box { display: flex; flex-direction: column; align-items: center; padding: 12px 0; }
.download-box > strong { font-size: 16px; font-weight: 550; }
.download-box .qr-image { width: 166px; height: 166px; display: block; margin-top: 18px; border: 10px solid #fff; background: #fff; object-fit: contain; border-radius: 16px; }
.download-box > small { margin-top: 14px; color: var(--muted); font-size: 13px; }
.download-actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 56px; width: min(600px, 100%); margin: 14px auto 0; }
.download-action { min-height: 52px; display: flex; align-items: center; justify-content: center; border-radius: 999px; background: var(--accent); color: var(--paper); font-size: 15px; font-weight: 650; white-space: nowrap; transition: transform .2s ease; }
.download-action:hover { transform: translateY(-2px); }
.download-action:active { transform: scale(.98); }
.signoff { display: block; margin-top: 34px; color: var(--muted); font-size: 14px; font-weight: 500; }
.wechat-guide { position: fixed; inset: 0; z-index: 10; display: flex; align-items: flex-start; justify-content: center; padding: 76px 22px 22px; background: rgb(35 16 42 / .82); }
.wechat-guide[hidden] { display: none; }
.wechat-guide-arrow { position: absolute; top: 8px; right: 18px; color: #fff; font-size: 46px; line-height: 1; }
.wechat-guide-card { width: min(320px, 100%); padding: 26px 22px 20px; border-radius: 24px; background: var(--paper); text-align: center; }
.wechat-guide-card strong { font-size: 18px; }
.wechat-guide-card p { margin: 12px 0 20px; color: var(--muted); font-size: 13px; line-height: 1.7; }
.wechat-guide-card button { width: 100%; min-height: 44px; border: 0; border-radius: 999px; color: var(--paper); background: var(--accent); font-weight: 700; }