/* ---- navbar：深色半透明背景（含毛玻璃） ---- */
  .lq-header{
    background:rgba(13,9,6,.55);backdrop-filter:blur(10px);
    -webkit-backdrop-filter:blur(10px);
  }
  .lq-header.scrolled{background:rgba(13,9,6,.85)}

  /* ============ HERO ============ */
  .os-hero{position:relative;padding:64px 0 36px;overflow:hidden}
  .os-hero::before{content:"";position:absolute;inset:0;z-index:-2;background:#0c0805}
  .os-hero .container{position:relative;z-index:1}
  .os-hero-inner{max-width:620px}
  .os-bg{position:absolute;inset:0;z-index:0;background-size:cover;background-position:center right;background-repeat:no-repeat}
  .os-kicker{font-family:var(--latin);font-style:italic;font-weight:600;
    font-size:clamp(30px,3.4vw,46px);color:var(--gold);line-height:1.1;margin-bottom:16px}
  .os-hero h1{font-family:var(--serif);font-size:clamp(36px,4.6vw,60px);
    letter-spacing:.08em;line-height:1.25;color:#f4ecdc;margin:0 0 20px}
  .os-hero .lead{font-family:var(--serif);font-size:clamp(18px,1.9vw,24px);
    color:var(--gold-soft);font-weight:600;letter-spacing:.06em;margin-bottom:24px}
  .os-hero .desc{color:#c3b79e;font-size:15.5px;line-height:2.1;max-width:520px;margin-bottom:34px}
  /* ============ commitments ============ */
  .os-commit{padding:44px 0;border-top:1px solid rgba(200,161,90,.12);
    border-bottom:1px solid rgba(200,161,90,.32)}
  .os-commit-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:30px}
  .os-commit .ci{display:flex;align-items:center;gap:16px;text-align:left}
  .os-commit .ci .ic{flex:0 0 48px;width:48px;display:grid;place-items:center;color:var(--gold)}
  .os-commit .ci .ic svg{width:46px;height:46px}
  .os-commit .ci .ct{display:flex;flex-direction:column;justify-content:center;min-width:0}
  .os-commit .ci h4{font-family:var(--serif);font-size:16px;letter-spacing:.04em;margin-bottom:7px;color:#eadec6}
  .os-commit .ci p{font-size:12px;color:#9d9077;line-height:1.8}

  /* ============ section heading ============ */
  .section{padding:44px 0}
  .os-head{text-align:center;margin-bottom:28px}
  .os-head h2{font-family:var(--serif);font-size:clamp(26px,3vw,38px);letter-spacing:.08em;color:#f1e8d6}
  .os-head .en{font-family:var(--latin);font-size:13px;letter-spacing:.4em;color:var(--gold);
    text-transform:uppercase;margin-bottom:14px}
  .os-head.is-left{text-align:left;margin-bottom:30px}
  .os-head.is-left h2{font-size:clamp(24px,2.4vw,30px);letter-spacing:.06em;color:var(--gold);font-weight:600}

  /* ============ categories ============ */
  .os-cat-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:22px}
  .os-cat{position:relative;display:block;border:1px solid var(--line-gold);border-radius:6px;
    overflow:hidden;background:linear-gradient(165deg,#191208,#0e0904);color:inherit;
    transition:transform .5s,box-shadow .5s,border-color .5s}
  .os-cat:hover{transform:translateY(-8px);border-color:rgba(200,161,90,.6);
    box-shadow:0 30px 60px -30px rgba(0,0,0,.9);color:inherit}
  .os-cat .cat-img{aspect-ratio:3/4;overflow:hidden;position:relative}
  .os-cat .cat-img img{width:100%;height:100%;object-fit:cover;transition:transform .8s;opacity:.92}
  .os-cat:hover .cat-img img{transform:scale(1.07)}
  .os-cat .cat-ph{position:absolute;inset:0;display:grid;place-items:center;color:var(--gold);
    background:linear-gradient(165deg,#221808,#100b04)}
  .os-cat .cat-ph svg{width:56px;height:56px;opacity:.8}
  .os-cat .cat-body{position:absolute;left:0;right:0;bottom:0;padding:22px 16px 16px;text-align:left;
    background:linear-gradient(transparent,rgba(8,5,2,.93) 46%)}
  .os-cat .cat-row{display:flex;align-items:center;gap:11px}
  .os-cat .cat-ic{flex:0 0 36px;width:36px;height:36px;color:var(--gold);display:grid;place-items:center}
  .os-cat .cat-ic svg{width:34px;height:34px}
  .os-cat .cat-txt{min-width:0}
  .os-cat h3{font-family:var(--serif);font-size:16px;letter-spacing:.04em;color:#f3ead8;margin-bottom:2px;
    line-height:1.3;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .os-cat .en{font-family:var(--latin);font-size:10.5px;letter-spacing:.14em;color:var(--gold-soft);
    white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .os-cat .more{font-size:12px;color:var(--gold);display:inline-flex;gap:6px;align-items:center;
    letter-spacing:.06em;margin-top:9px}
  .os-cat .more svg{transition:transform .3s}
  .os-cat:hover .more svg{transform:translateX(3px)}

  /* ============ steps ============ */
  .os-steps-wrap{background:linear-gradient(180deg,#100b05,#0b0704);border-top:1px solid rgba(200,161,90,.1);padding-bottom:0}
  .os-steps-layout{display:grid;grid-template-columns:300px 1fr;gap:44px;align-items:center}
  .os-steps-side h2{font-family:var(--serif);font-size:clamp(22px,2vw,27px);letter-spacing:.06em;
    color:var(--gold);line-height:1.5;margin-bottom:30px}
  .os-steps-desc{font-family:var(--serif);font-size:clamp(17px,1.5vw,20px);font-weight:600;line-height:2;letter-spacing:.04em;color:#cbbfa8;margin:0}
  .os-steps{display:flex;flex-wrap:nowrap;align-items:stretch;gap:18px}
  .os-step{flex:1 1 0;min-width:0;border:1px solid var(--line-gold);border-radius:8px;padding:24px 22px;text-align:left;
    background:rgba(255,255,255,.025);display:flex;align-items:center;gap:18px}
  .os-step-arrow{flex:none;display:grid;place-items:center;color:var(--gold);font-size:26px}
  .os-step-arrow svg{width:26px;height:26px}
  .os-step .step-txt{flex:1;min-width:0}
  .os-step .num{font-family:var(--latin);font-size:32px;font-weight:700;color:var(--gold);line-height:1;margin-bottom:10px}
  .os-step .ic{flex:none;color:var(--gold);display:grid;place-items:center;order:2}
  .os-step .ic svg{width:54px;height:54px}
  .os-step .ic img{display:block;width:auto;height:auto;max-width:88px;max-height:88px;object-fit:contain}
  .os-step h4{font-family:var(--serif);font-size:18px;letter-spacing:.05em;color:#efe6d4;margin-bottom:8px;white-space:nowrap}
  .os-step p{font-size:12.5px;color:#a4977e;line-height:1.85;margin:0}

  /* ============ gift banner ============ */
  .os-gift-section{padding:56px 0 0}
  .os-gift-card{position:relative;width:100%;overflow:hidden;border:1px solid var(--line-gold);border-radius:10px;
    background:linear-gradient(160deg,#1a130a,#0e0904)}
  .os-gift-card .gift-img{display:block;width:100%;height:auto}
  .os-gift-inner{position:relative;z-index:1;padding:30px 30px 34px}
  .os-gift-ph{display:grid;place-items:center;color:var(--gold);opacity:.25;width:70px;height:70px;margin-bottom:14px}
  .os-gift-ph svg{width:100%;height:100%}
  .os-gift-text{text-align:left}
  .os-gift-text .tag{display:inline-block;font-family:var(--latin);letter-spacing:.34em;font-size:11px;
    color:var(--gold);border:1px solid var(--line-gold);border-radius:30px;padding:6px 16px;margin-bottom:16px;text-transform:uppercase}
  .os-gift-text h2{font-family:var(--serif);font-size:23px;letter-spacing:.06em;color:#f1e8d6;margin-bottom:12px}
  .os-gift-text p{color:#b7aa90;font-size:13px;line-height:1.9;margin-bottom:20px}
  .os-gift-text .btn{margin-left:0}
  /* 桌面端：图片完整显示，文字叠加在图上（无遮罩） */
  @media(min-width:901px){
    .os-gift-card.has-img .os-gift-inner{position:absolute;inset:0;z-index:1;display:flex;
      flex-direction:column;justify-content:center;padding:0 56px;max-width:62%}
    .os-gift-card.has-img .os-gift-text h2{font-size:clamp(24px,2.4vw,34px);margin-bottom:14px}
    .os-gift-card.has-img .os-gift-text p{font-size:14.5px;line-height:2;margin-bottom:28px}
    .os-gift-card:not(.has-img){min-height:340px;display:flex;align-items:center}
    .os-gift-card:not(.has-img) .os-gift-inner{padding:40px;max-width:90%}
    .os-gift-card:not(.has-img) .os-gift-ph{position:absolute;right:40px;top:50%;transform:translateY(-50%);
      width:150px;height:150px;margin:0}
    .os-gift-text h2{font-size:clamp(21px,1.9vw,28px)}
    .os-gift-text p{font-size:13.5px;line-height:1.9}
  }
  /* 礼品标题金色（桌面叠加在图上时加文字阴影保证可读） */
  .os-gift-text h2{color:var(--gold)}
  @media(min-width:901px){
    .os-gift-card.has-img .os-gift-text h2{text-shadow:0 2px 14px rgba(0,0,0,.55)}
    .os-gift-card.has-img .os-gift-text p{text-shadow:0 1px 10px rgba(0,0,0,.6)}
  }
  /* 礼品按钮：透明描金、加大按钮、字号略小 */
  .os-gift-text .btn{background:transparent;color:var(--gold);border:1px solid var(--gold);
    font-weight:400;font-size:14px;padding:18px 44px;letter-spacing:.1em;border-radius:2px}
  .os-gift-text .btn:hover{background:rgba(200,161,90,.12);box-shadow:none;transform:translateY(-2px);color:var(--gold-soft)}

  /* ============ products ============ */
  .os-products-wrap{background:#0b0704}
  .os-products-flush{padding-top:32px}
  .os-pd-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px}
  .os-pd-head h2{font-family:var(--serif);font-size:clamp(24px,2.4vw,30px);letter-spacing:.06em;color:var(--gold);font-weight:600;margin:0}
  .os-pd-head .all-link{color:var(--gold);font-size:14.5px;letter-spacing:.06em;display:inline-flex;gap:8px;align-items:center;white-space:nowrap}
  .os-pd-head .all-link svg{transition:transform .3s}
  .os-pd-head .all-link:hover svg{transform:translateX(3px)}
  .os-pd-rail{position:relative}
  .os-pd-scroll{display:flex;align-items:flex-start;gap:24px;overflow-x:auto;scroll-behavior:smooth;padding:6px 4px 12px;
    scrollbar-width:thin;scrollbar-color:var(--gold-deep) transparent}
  .os-pd-scroll::-webkit-scrollbar{height:6px}
  .os-pd-scroll::-webkit-scrollbar-thumb{background:var(--gold-deep);border-radius:4px}
  .os-pd-card{position:relative;flex:0 0 calc((100% - 96px)/5);border:1px solid var(--line-gold);border-radius:6px;
    overflow:hidden;background:linear-gradient(165deg,#1a130a,#100b05);color:inherit;
    display:block;transition:transform .5s,box-shadow .5s,border-color .5s}
  .os-pd-card:hover{transform:translateY(-8px);border-color:rgba(200,161,90,.6);box-shadow:0 30px 60px -30px rgba(0,0,0,.9)}
  .os-pd-card .badge{position:absolute;top:0;left:0;z-index:3;background:linear-gradient(120deg,var(--gold-deep),var(--gold));
    color:#1a1308;font-size:12px;font-weight:700;letter-spacing:.05em;padding:6px 14px;border-bottom-right-radius:10px}
  .os-pd-card .rank-badge{position:absolute;top:0;left:0;z-index:3;width:72px;height:auto;
    filter:drop-shadow(0 4px 10px rgba(0,0,0,.45))}
  .os-pd-card .pd-img{position:relative;background:#15100a}
  .os-pd-card .pd-img img{display:block;width:100%;height:auto;transition:transform .8s;opacity:.95}
  .os-pd-card:hover .pd-img img{transform:scale(1.06)}
  .os-pd-card .pd-ph{width:100%;aspect-ratio:1/1;display:grid;place-items:center;color:var(--gold)}
  .os-pd-card .pd-ph svg{width:48px;height:48px;opacity:.65}
  .os-pd-card .pd-body{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:44px 16px 16px;
    background:linear-gradient(transparent,rgba(8,5,2,.93) 46%);display:flex;flex-direction:column}
  .os-pd-card h3{font-family:var(--serif);font-size:15.5px;line-height:1.6;color:#f3ead8;margin-bottom:12px;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:50px}
  .os-pd-card .pd-row{display:flex;align-items:center;justify-content:space-between;gap:10px}
  .os-pd-card .price{font-family:var(--latin);font-size:19px;font-weight:700;color:var(--gold)}
  .os-pd-card .price .tax{font-family:var(--serif);font-size:11px;font-weight:400;color:#c7bba3;margin-left:4px;letter-spacing:.04em}
  .os-pd-card .cart{width:38px;height:38px;flex:none;border-radius:50%;border:1px solid var(--line-gold);
    display:grid;place-items:center;color:var(--gold);background:rgba(13,9,6,.55);transition:.3s}
  .os-pd-card .cart svg{width:19px;height:19px}
  .os-pd-card:hover .cart{background:var(--gold);color:#1a1308;border-color:var(--gold)}
  .os-pd-arrow{position:absolute;top:38%;width:46px;height:46px;border-radius:50%;border:1px solid var(--line-gold);
    display:grid;place-items:center;color:var(--gold);background:rgba(13,9,6,.75);z-index:3;
    transition:.35s;cursor:pointer}
  .os-pd-arrow:hover{background:var(--gold);color:#1a1308;border-color:var(--gold)}
  .os-pd-arrow.prev{left:-23px}
  .os-pd-arrow.next{right:-23px}

  /* ============ reassure ============ */
  .os-reassure{background:#d3c7ba;border-top:1px solid rgba(120,90,40,.18);padding:40px 0}
  .os-re-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px}
  .os-re{display:flex;gap:18px;align-items:flex-start}
  .os-re .ic{flex:none;width:66px;height:66px;border-radius:50%;border:1px solid rgba(150,110,50,.55);
    display:grid;place-items:center;color:#9a6f2c;background:rgba(255,255,255,.25)}
  .os-re .ic svg{width:34px;height:34px}
  .os-re .ic img{width:34px;height:34px;object-fit:contain}
  .os-re h4{font-family:var(--serif);font-size:16px;color:#3a2d1c;margin-bottom:6px}
  .os-re p{font-size:12.5px;color:#6d5f49;line-height:1.8}

  /* ============ responsive ============ */
  @media(max-width:1100px){
    .os-commit-grid{grid-template-columns:repeat(3,1fr);gap:34px}
    .os-cat-grid{grid-template-columns:repeat(3,1fr)}
    .os-pd-card{flex:0 0 calc((100% - 72px)/4)}
    .os-pd-arrow.prev{left:6px}.os-pd-arrow.next{right:6px}
  }
  @media(max-width:900px){
    .os-hero{padding:72px 0 40px}
    .os-steps-layout{grid-template-columns:1fr;gap:26px;text-align:center}
    .os-gift-card{width:100%}
    .os-gift-card:not(.has-img){min-height:0}
    .os-gift-card:not(.has-img) .os-gift-ph{position:static;transform:none;width:70px;height:70px;margin:0 0 14px}
    .os-gift-card:not(.has-img) .os-gift-inner{padding:30px 30px 34px;max-width:none}
    .os-cat-grid{grid-template-columns:repeat(2,1fr)}
    .os-pd-card{flex:0 0 calc((100% - 48px)/3)}
    .os-re-grid{grid-template-columns:1fr 1fr;gap:26px}
    .section{padding:34px 0}
    .os-gift-section{padding:34px 0 0}
    .os-steps-wrap{padding-bottom:0}
    .os-products-flush{padding-top:26px}
  }
  @media(max-width:680px){
    .os-steps{flex-direction:column}
    .os-step-arrow{transform:rotate(90deg);padding:8px 0}
    .os-commit-grid{grid-template-columns:1fr 1fr;gap:30px}
    .os-pd-card{flex:0 0 calc((100% - 24px)/2)}
    .os-pd-card .rank-badge{width:56px}
  }
  @media(max-width:480px){
    .os-cat-grid,.os-re-grid{grid-template-columns:1fr}
    .os-re{justify-content:center;text-align:center;flex-direction:column;align-items:center}
  }