/* ---------- B2: 产品详情页（罗马帘） ---------- */
.crumbs{display:flex;gap:8px;align-items:center;font-size:13px;color:#6b7268;padding:14px 0 0}
.crumbs a{color:#6b7268;text-decoration:none}
.crumbs a:hover{color:#232821;text-decoration:underline}
.crumbs span[aria-current]{color:#232821;font-weight:600}
.link-arrow{color:#b45f42;font-weight:600;text-decoration:none;font-size:14px}
.link-arrow:hover{text-decoration:underline}

.pdp{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;padding:26px 0 10px;align-items:start}
.pdp__media{position:sticky;top:18px}
.pdp__hero{position:relative;aspect-ratio:4/5;border-radius:16px;overflow:hidden;background:linear-gradient(170deg,#e8e2d6 0%,#d9d2c3 45%,#cdc5b4 100%)}
.pdp__fold{position:absolute;left:0;right:0;height:3px;background:rgba(35,40,33,.16);box-shadow:0 1px 0 rgba(255,255,255,.5)}
.pdp__fold.f1{top:28%}
.pdp__fold.f2{top:47%}
.pdp__fold.f3{top:66%}
.pdp__light{position:absolute;inset:0;background:radial-gradient(120% 80% at 78% 12%,rgba(255,250,235,.75),transparent 58%)}
.pdp__thumbs{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:10px}
.pdp__thumb{display:flex;align-items:center;justify-content:center;height:62px;border-radius:10px;background:#f2eee4;border:1px solid rgba(35,40,33,.12);font-size:11.5px;color:#6b7268;text-align:center;padding:4px}

.pdp__body h1{font-size:clamp(24px,3.2vw,34px);line-height:1.18;letter-spacing:-.015em;margin:0 0 12px}
.pdp__price{font-size:15px;color:#5b6157;margin:0 0 6px}
.pdp__price strong{font-size:26px;color:#232821;letter-spacing:-.02em}
.pdp__unit{font-size:13px;color:#6b7268}
.pdp__lede{font-size:15px;line-height:1.6;color:#5b6157;margin:8px 0 18px}

.pdp__swatches{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:8px}
.pdp__label{font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:#6b7268;width:100%}
.chip{appearance:none;border:1px solid rgba(35,40,33,.20);background:#fff;color:#232821;font:inherit;font-size:13.5px;font-weight:600;padding:8px 14px;border-radius:999px;cursor:pointer;transition:all .14s ease}
.chip:hover{border-color:#232821}
.chip.is-on{background:#232821;color:#f6f1e6;border-color:#232821}

.cfg{margin-top:16px;border-top:1px solid rgba(35,40,33,.12);padding-top:18px}
.cfg__group{border:0;margin:0 0 20px;padding:0}
.cfg__group legend{font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.07em;color:#232821;margin-bottom:10px;padding:0}
.cfg__row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.cfg__row label{font-size:12.5px;color:#6b7268;display:flex;flex-direction:column;gap:5px}
.cfg__input{display:inline-flex;align-items:center;gap:6px;border:1px solid rgba(35,40,33,.20);border-radius:10px;padding:8px 10px;background:#fff}
.cfg__input input{border:0;outline:0;font:inherit;font-size:15px;width:100%;min-width:0;background:transparent;color:#232821}
.cfg__unit{font-size:12.5px;color:#6b7268}
.cfg__hint{font-size:12.5px;color:#6b7268;line-height:1.5;margin:8px 0 0}

.opt{display:grid;grid-template-columns:18px 1fr;gap:2px 10px;align-items:start;padding:10px 0;border-bottom:1px dashed rgba(35,40,33,.12);cursor:pointer}
.opt:last-child{border-bottom:0}
.opt input{margin-top:3px;accent-color:#b45f42}
.opt span{font-size:14px;font-weight:600;color:#232821}
.opt span em{font-style:normal;font-weight:600;color:#b45f42;margin-left:6px}
.opt small{grid-column:2;font-size:12.5px;color:#6b7268;line-height:1.45}

.review{margin:22px 0 18px;padding:16px 18px;border:1px solid rgba(35,40,33,.16);border-radius:14px;background:#fbf8f2}
.review__title{font-size:14px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;margin:0 0 10px;color:#232821}
.review__list{margin:0;display:flex;flex-direction:column;gap:6px}
.review__list>div{display:flex;justify-content:space-between;gap:14px;font-size:13.5px}
.review__list dt{color:#6b7268;margin:0}
.review__list dd{margin:0;color:#232821;font-weight:600;text-align:right}
.review__total{padding-top:8px;margin-top:4px;border-top:1px solid rgba(35,40,33,.14)}
.review__total dt{font-weight:700;color:#232821}
.review__total dd{font-size:18px;color:#b45f42}

.cfg__contact{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:18px 0 14px}
.cfg__contact label{display:flex;flex-direction:column;gap:5px;font-size:12.5px;color:#6b7268}
.cfg__contact input,.cfg__contact textarea{font:inherit;font-size:14px;padding:9px 11px;border:1px solid rgba(35,40,33,.20);border-radius:10px;background:#fff;color:#232821;outline:0}
.cfg__contact input:focus,.cfg__contact textarea:focus{border-color:#232821}
.cfg__contact label:nth-child(3),.cfg__contact label:nth-child(4){grid-column:1/-1}

.acc{border-bottom:1px solid rgba(35,40,33,.12);padding:12px 0}
.acc summary{cursor:pointer;font-size:15px;font-weight:600;color:#232821;list-style:none;display:flex;justify-content:space-between;align-items:center}
.acc summary::-webkit-details-marker{display:none}
.acc summary::after{content:'+';font-size:18px;color:#b45f42;font-weight:400}
.acc[open] summary::after{content:'–'}
.acc p,.acc ul{margin:10px 0 0;font-size:14px;line-height:1.65;color:#5b6157}
.spec-list{margin:10px 0 0;padding-left:18px;font-size:14px;line-height:1.7;color:#5b6157}

@media (max-width:900px){
  .pdp{grid-template-columns:1fr;gap:26px}
  .pdp__media{position:static}
  .pdp__hero{aspect-ratio:16/10}
  .cfg__contact{grid-template-columns:1fr}
}
@media (max-width:560px){
  .pdp__thumbs{grid-template-columns:repeat(2,1fr)}
  .cfg__row{grid-template-columns:1fr}
}