@charset "utf-8";

:root {
 --product-ink: #24272d;
 --product-muted: #777b82;
 --product-line: #dedede;
 --product-soft: #f6f5f3;
 --product-accent: #dc5752;
 --product-accent-dark: #c84844;
}

html { scroll-behavior: smooth; }

.product-page,
.product-page * { box-sizing: border-box; }

.product-page {
 overflow: hidden;
 background: #fff;
 color: var(--product-ink);
 font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
}

.product-shell {
 width: min(1428px, calc(100% - 64px));
 margin: 0 auto;
 padding: 76px 0 110px;
}

.product-hero {
 display: grid;
 grid-template-columns: minmax(0, 1.02fr) minmax(360px, .98fr);
 gap: clamp(64px, 8vw, 150px);
 align-items: stretch;
 min-height: 660px;
}

.product-gallery { min-width: 0; }

.product-gallery__stage {
 display: flex;
 align-items: center;
 justify-content: center;
 aspect-ratio: 1 / 1;
 margin: 0;
 overflow: hidden;
 border: 1px solid #d7d7d7;
 background: #fff;
}

.product-gallery__stage img {
 display: block;
 width: 88%;
 height: 88%;
 object-fit: contain;
 transition: transform 500ms cubic-bezier(.2,.7,.2,1);
}

.product-gallery__stage:hover img { transform: scale(1.025); }

.product-gallery__rail {
 display: grid;
 grid-template-columns: 48px 102px 1fr 48px;
 gap: 16px;
 align-items: center;
 min-height: 130px;
}

.product-gallery__thumb {
 display: flex;
 align-items: center;
 justify-content: center;
 width: 102px;
 height: 102px;
 padding: 7px;
 border: 1px solid #cfcfcf;
 background: #fff;
 cursor: pointer;
}

.product-gallery__thumb.is-active { border: 2px solid var(--product-ink); }
.product-gallery__thumb img { width: 100%; height: 100%; object-fit: contain; }

.product-gallery__arrow {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 width: 48px;
 height: 48px;
 padding: 0;
 border: 0;
 background: transparent;
 color: #bdc0c3;
}

.product-gallery__arrow--next { grid-column: 4; }
.product-gallery__arrow svg { width: 42px; height: 42px; fill: none; stroke: currentColor; stroke-width: 1.6; }

.product-summary {
 display: flex;
 flex-direction: column;
 align-items: flex-start;
 min-width: 0;
 padding: 12px 0 140px;
 position: relative;
}

.product-summary__eyebrow,
.product-message__eyebrow {
 margin: 0 0 13px;
 color: var(--product-accent);
 font: 600 13px/1.2 Arial, sans-serif;
 letter-spacing: .16em;
}

.product-summary h1 {
 margin: 0;
 color: var(--product-ink);
 font-size: clamp(32px, 3vw, 50px);
 font-weight: 700;
 line-height: 1.18;
 letter-spacing: -.04em;
 text-wrap: balance;
}

.product-summary__description {
 max-width: 620px;
 margin: 28px 0 0;
 color: var(--product-muted);
 font-size: 16px;
 line-height: 1.9;
 text-wrap: pretty;
}

.product-summary__description:empty { display: none; }

.product-actions {
 display: flex;
 gap: 18px;
 margin-top: auto;
 padding-top: 60px;
}

.product-action {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 gap: 12px;
 min-width: 164px;
 height: 64px;
 padding: 0 26px;
 border: 1px solid #7f8287;
 border-radius: 0;
 background: #fff;
 color: var(--product-ink);
 font: 500 17px/1 "Microsoft YaHei", sans-serif;
 cursor: pointer;
 transition: transform 180ms ease, background-color 180ms ease, border-color 180ms ease, color 180ms ease;
}

.product-action svg {
 width: 24px;
 height: 24px;
 fill: none;
 stroke: currentColor;
 stroke-width: 1.7;
 stroke-linecap: round;
 stroke-linejoin: round;
}

.product-action.product-action--primary,
.product-action.product-action--primary:link,
.product-action.product-action--primary:visited { border-color: var(--product-accent); background: var(--product-accent); color: #fff; }
.product-action.product-action--primary:hover { border-color: var(--product-accent-dark); background: var(--product-accent-dark); color: #fff; }
.product-action--share:hover { border-color: var(--product-ink); background: var(--product-ink); color: #fff; }
.product-action:active { transform: translateY(1px) scale(.985); }
.product-action:focus-visible { outline: 3px solid rgba(220,87,82,.28); outline-offset: 3px; }

.product-share-status { min-height: 22px; margin: 12px 0 0; color: var(--product-accent-dark); font-size: 13px; }

.product-detail { margin-top: 58px; }

.product-section-heading {
 height: 72px;
 border-bottom: 1px solid var(--product-line);
}

.product-section-heading h2 {
 display: inline-flex;
 align-items: center;
 height: 72px;
 margin: 0;
 padding: 0 25px;
 position: relative;
 color: var(--product-ink);
 font-size: 22px;
 font-weight: 500;
}

.product-section-heading h2::after {
 content: "";
 width: 100%;
 height: 4px;
 position: absolute;
 right: 0;
 bottom: -1px;
 left: 0;
 background: var(--product-ink);
}

.product-richtext {
 min-height: 160px;
 padding: 58px 0 36px;
 color: #555a60;
 font-size: 16px;
 line-height: 1.95;
}

.product-richtext img { display: block; max-width: 100% !important; height: auto !important; margin: 24px auto; }
.product-richtext p { margin: 0 0 18px; text-align: left; font-size: inherit; line-height: inherit; }
.product-richtext table { max-width: 100%; }

.product-pagination {
 display: grid;
 grid-template-columns: 1fr 48px 1fr;
 gap: 32px;
 align-items: center;
 min-height: 108px;
 padding: 24px 0;
 border-top: 1px solid #eeeeee;
 border-bottom: 1px solid #eeeeee;
}

.product-pagination__item { min-width: 0; color: var(--product-ink); font-size: 15px; }
.product-pagination__item span { display: block; margin-bottom: 8px; color: #9a9da2; font-size: 13px; }
.product-pagination__item div { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.product-pagination__item a { color: inherit; transition: color 180ms ease; }
.product-pagination__item a:hover { color: var(--product-accent); }
.product-pagination__item--next { text-align: right; }

.product-pagination__back {
 display: flex;
 align-items: center;
 justify-content: center;
 width: 46px;
 height: 46px;
 color: #8a8d92;
 transition: color 180ms ease, transform 180ms ease;
}

.product-pagination__back:hover { color: var(--product-accent); transform: scale(1.08); }
.product-pagination__back svg { width: 22px; height: 22px; fill: currentColor; }

.product-message {
 display: grid;
 grid-template-columns: minmax(260px, .65fr) minmax(0, 1.35fr);
 gap: clamp(54px, 8vw, 120px);
 margin-top: 88px;
 padding: 74px clamp(36px, 5vw, 76px) 78px;
 scroll-margin-top: 32px;
 background: var(--product-soft);
}

.product-message__intro h2 { margin: 0; font-size: clamp(30px, 3vw, 46px); line-height: 1.2; letter-spacing: -.04em; }
.product-message__intro > p:not(.product-message__eyebrow) { max-width: 360px; margin: 22px 0 0; color: var(--product-muted); font-size: 15px; line-height: 1.9; }

.product-message__contact { margin-top: 48px; padding-top: 24px; border-top: 1px solid #d9d7d2; }
.product-message__contact span { display: block; margin-bottom: 8px; color: #96928c; font-size: 13px; }
.product-message__contact strong { font-size: 18px; font-weight: 500; }

.product-message .ly_msg { margin: 0; padding: 0; overflow: visible; }
.message-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px 20px; }
.message-field { display: block; min-width: 0; }
.message-field--wide { grid-column: 1 / -1; }
.message-field > span { display: block; margin-bottom: 10px; color: #45484d; font-size: 14px; font-weight: 500; }
.message-field em { color: var(--product-accent); font-style: normal; }

.product-message .message-field input,
.product-message .message-field textarea {
 display: block;
 width: 100%;
 height: 52px;
 margin: 0;
 padding: 13px 15px;
 border: 1px solid #d7d4cf !important;
 border-radius: 0;
 outline: 0;
 background: rgba(255,255,255,.84) !important;
 color: var(--product-ink);
 font: 14px/1.6 "Microsoft YaHei", sans-serif;
 transition: border-color 180ms ease, box-shadow 180ms ease, background-color 180ms ease;
}

.product-message .message-field textarea { height: 142px; resize: vertical; }
.product-message .message-field input::placeholder,
.product-message .message-field textarea::placeholder { color: #aaa7a2; }
.product-message .message-field input:focus,
.product-message .message-field textarea:focus { border-color: var(--product-accent) !important; background: #fff !important; box-shadow: 0 0 0 3px rgba(220,87,82,.12); }
.product-message .message-field [aria-invalid="true"] { border-color: #bd3632 !important; box-shadow: 0 0 0 3px rgba(189,54,50,.1); }

.message-error { min-height: 22px; margin: 17px 0 0; color: #b93632; font-size: 14px; }
.message-actions { display: flex; align-items: center; gap: 14px; margin-top: 12px; }
.message-actions button {
 min-width: 144px;
 height: 52px;
 margin: 0;
 padding: 0 24px;
 border: 1px solid var(--product-accent);
 background: var(--product-accent);
 color: #fff;
 font: 500 15px/1 "Microsoft YaHei", sans-serif;
 cursor: pointer;
 transition: background-color 180ms ease, border-color 180ms ease, color 180ms ease, transform 180ms ease;
}
.message-actions button:hover { border-color: var(--product-accent-dark); background: var(--product-accent-dark); }
.message-actions button:active { transform: translateY(1px); }
.message-actions button:focus-visible { outline: 3px solid rgba(220,87,82,.25); outline-offset: 3px; }
.message-actions .message-reset { min-width: 112px; border-color: #b9b6b1; background: transparent; color: #66635f; }
.message-actions .message-reset:hover { border-color: var(--product-ink); background: var(--product-ink); color: #fff; }
.message-actions span { margin-left: auto; color: #99958f; font-size: 12px; }

@media (max-width: 1100px) {
 .product-shell { width: calc(100% - 48px); padding-top: 56px; }
 .product-hero { grid-template-columns: minmax(0, 1fr) minmax(330px, .85fr); gap: 48px; min-height: 560px; }
 .product-summary { padding-bottom: 70px; }
 .product-message { grid-template-columns: 1fr; gap: 48px; }
 .product-message__intro { display: grid; grid-template-columns: 1fr 1fr; column-gap: 40px; }
 .product-message__eyebrow, .product-message__intro h2 { grid-column: 1; }
 .product-message__intro > p:not(.product-message__eyebrow), .product-message__contact { grid-column: 2; }
 .product-message__intro > p:not(.product-message__eyebrow) { grid-row: 1 / span 2; margin-top: 0; }
 .product-message__contact { margin-top: 24px; }
}

@media (max-width: 760px) {
 .product-shell { width: calc(100vw - 32px); max-width: calc(100vw - 32px); padding: 32px 0 72px; }
 .product-hero { display: block; min-height: 0; }
 .product-gallery__rail { grid-template-columns: 42px 82px 1fr 42px; min-height: 108px; }
 .product-gallery__thumb { width: 82px; height: 82px; }
 .product-summary { padding: 26px 0 8px; }
 .product-summary__eyebrow { margin-bottom: 9px; }
 .product-summary h1 { font-size: 30px; }
 .product-summary__description { margin-top: 18px; font-size: 15px; line-height: 1.8; }
 .product-actions { width: 100%; gap: 10px; padding-top: 28px; }
 .product-action { flex: 1; min-width: 0; height: 54px; padding: 0 16px; font-size: 15px; }
 .product-action svg { width: 21px; height: 21px; }
 .product-detail { margin-top: 36px; }
 .product-section-heading, .product-section-heading h2 { height: 60px; }
 .product-section-heading h2 { padding: 0 14px; font-size: 19px; }
 .product-richtext { padding: 36px 0 22px; font-size: 15px; }
 .product-pagination { grid-template-columns: 1fr; gap: 20px; padding: 28px 0; }
 .product-pagination__item--next { text-align: left; }
 .product-pagination__back { display: none; }
 .product-message { margin-top: 56px; padding: 44px 20px 48px; }
 .product-message__intro { display: block; }
 .product-message__intro > p:not(.product-message__eyebrow) { margin-top: 18px; }
 .product-message__contact { margin-top: 28px; }
 .message-grid { grid-template-columns: 1fr; gap: 20px; }
 .message-field--wide { grid-column: auto; }
 .message-actions { align-items: stretch; flex-wrap: wrap; }
 .message-actions button { flex: 1; min-width: 120px; }
 .message-actions span { flex-basis: 100%; margin: 5px 0 0; }
}

@media (prefers-reduced-motion: reduce) {
 .product-gallery__stage img,
 .product-action,
 .product-pagination__back,
 .product-message .message-field input,
 .product-message .message-field textarea,
 .message-actions button { transition: none; }
}