/* ============================================================
   SELECT 官网 v3 · 网店风格样式
   ============================================================ */
:root{
  --bg:#f7f8f5;          /* 页面底 */
  --card:#ffffff;
  --ink:#191b1a;
  --mut:#5f6463;
  --line:#e5e7e2;
  --brand:#0e7a5f;       /* SELECT 主绿 */
  --brand-d:#085e49;
  --brand-soft:#dff1e9;
  --jd:#e1251b;          /* 京东红 */
  --jd-soft:#fdecea;
  --tb:#ff6a00;          /* 淘宝橙 */
  --tb-soft:#fff1e6;
  --gold:#a4946d;
  --radius:14px;
  --shadow:0 6px 24px rgba(20,30,25,.06);
  --shadow-lg:0 16px 48px rgba(20,30,25,.12);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --ease:cubic-bezier(.22,.61,.22,1);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
section{position:relative}

/* ---------- 渐显 ---------- */
.rv{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.rv.in{opacity:1;transform:none}

/* ================= 顶栏 / 导航 ================= */
.hdr{position:sticky;top:0;z-index:80;background:rgba(247,248,245,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:box-shadow .3s,border-color .3s}
.hdr.solid{border-color:var(--line);box-shadow:0 4px 18px rgba(20,30,25,.05)}
.nav-row{max-width:1200px;margin:0 auto;padding:0 24px;height:68px;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:10px}
.brand img{height:34px;width:auto}
.brand-name{font-weight:800;letter-spacing:.14em;font-size:15px}
.brand-name em{font-style:normal;color:var(--brand)}
.nav-links{display:flex;gap:6px;margin-left:6px;flex:1}
.nav-links a{padding:8px 14px;border-radius:999px;font-size:14px;color:var(--mut);transition:.25s}
.nav-links a:hover{color:var(--brand);background:var(--brand-soft)}
.store-mini{display:flex;gap:8px;margin-left:auto}
.store-mini a{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:700;padding:7px 14px;border-radius:999px;transition:.25s}
.store-mini a.jd{color:var(--jd);background:var(--jd-soft)}
.store-mini a.tb{color:var(--tb);background:var(--tb-soft)}
.store-mini a:hover{transform:translateY(-1px)}
.lang-toggle{flex:0 0 auto;display:inline-flex;align-items:center;gap:2px;border:1.5px solid var(--line);background:#fff;border-radius:999px;padding:5px 4px;font-size:12px;font-weight:800;cursor:pointer;color:var(--mut);transition:.25s}
.lang-toggle:hover{border-color:var(--brand)}
.lang-toggle b{display:inline-block;padding:2px 8px;border-radius:999px;letter-spacing:.02em}
.lang-toggle b.on{background:var(--brand);color:#fff}
.lang-toggle i{font-style:normal;color:var(--line)}
.burger{display:none;width:42px;height:42px;border:0;background:transparent;cursor:pointer}
.burger span{display:block;width:20px;height:2px;background:var(--ink);margin:5px auto;transition:.3s}

/* ================= 首页轮播 ================= */
.slider{position:relative;height:min(72vh,640px);min-height:460px;overflow:hidden;background:#0d3a30}
.slide{position:absolute;inset:0;opacity:0;transition:opacity 1s var(--ease);display:flex;align-items:center}
.slide.on{opacity:1;z-index:2}
.slide .bg{position:absolute;inset:0;object-fit:cover;width:100%;height:100%}
.slide .veil{position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,30,24,.72) 0%,rgba(8,30,24,.35) 55%,rgba(8,30,24,.05) 100%)}
.slide .inner{position:relative;z-index:3;max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
.slide .kicker{display:inline-block;color:#a8e6d0;letter-spacing:.32em;font-size:13px;margin-bottom:16px;border:1px solid rgba(168,230,208,.4);padding:6px 14px;border-radius:999px}
.slide h2{color:#fff;font-size:clamp(34px,5.2vw,60px);line-height:1.12;letter-spacing:.02em;font-weight:800}
.slide h2 span{color:#7ce0bd}
.slide .sub{color:rgba(255,255,255,.82);font-size:17px;margin:16px 0 28px;max-width:520px}
.slide .acts{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;border-radius:999px;padding:13px 26px;font-size:15px;transition:.25s var(--ease);cursor:pointer;border:0}
.btn-main{background:#fff;color:#0b4a39}
.btn-main:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(0,0,0,.2)}
.btn-ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.75)}
.btn-ghost:hover{background:rgba(255,255,255,.14)}
a.soon{pointer-events:none;cursor:default;opacity:.6;filter:grayscale(.4)}
.slide video.bg{width:100%;height:100%;object-fit:cover;background:#0d3a30}
.arr{position:absolute;top:50%;transform:translateY(-50%);z-index:5;width:46px;height:46px;border-radius:50%;border:0;background:rgba(255,255,255,.16);color:#fff;font-size:20px;cursor:pointer;backdrop-filter:blur(4px);transition:.25s}
.arr:hover{background:rgba(255,255,255,.32)}
.arr-prev{left:22px}.arr-next{right:22px}
.dots{position:absolute;bottom:22px;left:0;right:0;z-index:6;display:flex;gap:8px;justify-content:center}
.dot{width:9px;height:9px;border-radius:99px;border:0;background:rgba(255,255,255,.4);cursor:pointer;transition:.3s}
.dot.on{width:26px;background:#7ce0bd}

/* ================= 信任条 ================= */
.trustbar{background:#0d3a30;color:#fff}
.trustbar .wrap{display:flex;flex-wrap:wrap;gap:10px 34px;padding-top:14px;padding-bottom:14px;align-items:center;justify-content:center}
.trustbar b{color:#7ce0bd;font-weight:800}
.trustbar span{font-size:13.5px;opacity:.88}

/* ================= 双店入口 ================= */
.sec{padding:76px 0}
.sec-head{max-width:1200px;margin:0 auto 40px;padding:0 24px}
.sec-kick{color:var(--brand);font-weight:800;letter-spacing:.3em;font-size:13px;display:block;margin-bottom:10px}
.sec-title{font-size:clamp(26px,3.4vw,38px);font-weight:800;letter-spacing:.02em}
.sec-title em{font-style:normal;color:var(--brand)}
.stores{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.store-card{position:relative;overflow:hidden;border-radius:20px;padding:38px 36px;min-height:210px;display:flex;flex-direction:column;justify-content:center;transition:.3s var(--ease)}
.store-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.store-card.jd{background:linear-gradient(130deg,#fff5f4,#ffe0dd)}
.store-card.tb{background:linear-gradient(130deg,#fff7f0,#ffe7d2)}
.store-card .t{font-weight:800;font-size:26px;letter-spacing:.02em}
.store-card.jd .t{color:var(--jd)}.store-card.tb .t{color:var(--tb)}
.store-card .d{color:var(--mut);font-size:14.5px;margin:8px 0 22px;max-width:430px}
.store-card .go{align-self:flex-start}
.store-card .go.jd{background:var(--jd);color:#fff}
.store-card .go.tb{background:var(--tb);color:#fff}
.store-card .badge{position:absolute;right:-16px;top:-16px;font-size:120px;font-weight:900;opacity:.09;line-height:1}

/* ================= 产品卡 ================= */
.prod-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.prod-card{background:var(--card);border:1px solid var(--line);border-radius:20px;overflow:hidden;transition:.35s var(--ease);display:flex;flex-direction:column}
.prod-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.prod-media{position:relative;aspect-ratio:4/3;overflow:hidden;background:linear-gradient(150deg,#eef3ef,#f7f8f5)}
.prod-media img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease)}
.prod-card:hover .prod-media img{transform:scale(1.05)}
.prod-tag{position:absolute;left:16px;top:16px;background:#fff;color:var(--brand);font-size:12px;font-weight:800;padding:6px 12px;border-radius:999px;box-shadow:var(--shadow)}
.prod-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:10px;flex:1}
.prod-body h3{font-size:20px;font-weight:800}
.prod-en{color:var(--mut);font-size:12.5px;letter-spacing:.18em}
.prod-specs{font-size:13.5px;color:var(--mut);display:flex;flex-wrap:wrap;gap:6px}
.prod-specs i{font-style:normal;background:#f0f2ee;padding:3px 10px;border-radius:99px}
.price-row{margin-top:auto;display:flex;align-items:baseline;gap:8px;padding-top:6px}
.price{color:var(--jd);font-weight:900;font-size:22px}
.price small{font-size:13px;font-weight:600}
.price-note{color:var(--mut);font-size:12px}
.prod-acts{display:flex;gap:10px;margin-top:12px}
.prod-acts .btn{flex:1;padding:11px 14px;font-size:14px}
.detail-btn{background:#0b4a39;color:#fff}
.store-btn.jd{background:var(--jd);color:#fff}
.store-btn.tb{background:var(--tb);color:#fff}
.prod-acts .plain{flex:0 0 auto;background:#fff;border:1.5px solid var(--line);color:var(--ink)}

/* ================= 风味 ================= */
.flavor-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.flavor-item{border-radius:16px;overflow:hidden;background:var(--card);border:1px solid var(--line);text-align:center;transition:.3s;cursor:pointer}
.flavor-item:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.flavor-item img{aspect-ratio:1;width:100%;object-fit:cover}
.flavor-item figcaption{padding:10px 6px;font-size:14px;font-weight:600}

/* ================= 卖点 ================= */
.feat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.feat{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:26px 22px;transition:.3s}
.feat:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.feat .ic{width:48px;height:48px;border-radius:14px;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:14px}
.feat h4{font-size:16px;margin-bottom:6px}
.feat p{font-size:13.5px;color:var(--mut)}

/* ================= 双列介绍带 ================= */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split .media{border-radius:20px;overflow:hidden;box-shadow:var(--shadow)}
.split h3{font-size:28px;font-weight:800;margin-bottom:12px;line-height:1.3}
.split .en{color:var(--brand);font-weight:800;letter-spacing:.24em;font-size:12px;display:block;margin-bottom:8px}
.split p{color:var(--mut);font-size:15px;margin-bottom:14px}
.tick-list li{padding-left:26px;position:relative;color:var(--mut);font-size:14.5px;margin-bottom:9px}
.tick-list li::before{content:"✓";position:absolute;left:0;color:var(--brand);font-weight:900}

/* ================= 详情页通用 ================= */
.crumb{background:var(--card);border-bottom:1px solid var(--line);padding:12px 0;font-size:13px;color:var(--mut)}
.crumb a:hover{color:var(--brand)}
.crumb b{color:var(--ink)}
.detail{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:38px;padding-top:48px}
.gallery .main{border-radius:20px;overflow:hidden;background:#fff;aspect-ratio:1/1;border:1px solid var(--line)}
.gallery .main img{width:100%;height:100%;object-fit:cover}
.thumb-row{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:12px}
.thumb{aspect-ratio:1;border-radius:12px;overflow:hidden;border:2px solid transparent;cursor:pointer;opacity:.85;transition:.2s;padding:0;background:#fff}
.thumb:hover{opacity:1;border-color:var(--line)}
.thumb img{width:100%;height:100%;object-fit:cover}
.info .tags{display:flex;gap:8px;margin-bottom:14px}
.info .tags span{font-size:12px;padding:4px 11px;border-radius:99px;background:var(--brand-soft);color:var(--brand);font-weight:700}
.info h1{font-size:30px;font-weight:800;letter-spacing:.01em}
.info .en-sub{color:var(--mut);font-size:12.5px;letter-spacing:.22em;margin:6px 0 14px}
.info .lead{color:var(--mut);font-size:15px;border-bottom:1px dashed var(--line);padding-bottom:16px}
.sku-box{margin-top:18px}
.sku-lab{font-size:13px;font-weight:800;display:flex;align-items:center;gap:8px;margin-bottom:10px}
.sku-lab i{font-style:normal;color:var(--mut);font-weight:500;font-size:12px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{border:1.5px solid var(--line);background:#fff;border-radius:10px;padding:8px 14px;font-size:14px;cursor:pointer;transition:.2s;color:var(--mut)}
.chip:hover{border-color:var(--brand)}
.chip.on{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);font-weight:700}
.buy-row{display:flex;gap:12px;align-items:stretch;margin:22px 0 0;flex-wrap:wrap}
.buy-row .btn{flex:1;min-width:170px;padding:15px 18px;font-size:16px;border-radius:12px}
.btn-jd{background:linear-gradient(135deg,#ff5a50,#e1251b);color:#fff;box-shadow:0 10px 24px rgba(225,37,27,.25)}
.btn-tb{background:linear-gradient(135deg,#ff9a3d,#ff6a00);color:#fff;box-shadow:0 10px 24px rgba(255,106,0,.22)}
.buy-row .btn:hover{transform:translateY(-2px);filter:brightness(1.05)}
.qty{display:flex;align-items:center;border:1.5px solid var(--line);border-radius:12px;overflow:hidden}
.qty button{width:42px;height:50px;border:0;background:#f4f5f2;font-size:19px;cursor:pointer;color:var(--ink)}
.qty input{width:52px;height:50px;border:0;text-align:center;font-size:15px;font-weight:700;outline:none}
.trust-line{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:20px;background:#f4f6f3;border-radius:14px;padding:14px}
.trust-line div{display:flex;gap:8px;align-items:center;font-size:12.5px;color:var(--mut)}
.trust-line b{color:var(--brand)}

/* ---------- 详情图文长段 ---------- */
.detail-sec{padding:64px 0}
.detail-sec.alt{background:var(--card)}
.detail-sec .lab{color:var(--brand);font-weight:800;letter-spacing:.3em;font-size:12px;display:block;margin-bottom:8px;text-align:center}
.detail-sec h2{font-size:clamp(24px,3vw,34px);font-weight:800;text-align:center;margin-bottom:10px}
.detail-sec .lead{text-align:center;color:var(--mut);max-width:640px;margin:0 auto 40px;font-size:15px}
.split.rev .media{order:2}
.two-cols{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.spec-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px;display:flex;gap:18px;align-items:flex-start;transition:.3s}
.spec-card:hover{box-shadow:var(--shadow)}
.spec-card .n{font-size:40px;font-weight:900;color:var(--brand-soft);line-height:1;flex:0 0 auto}
.spec-card h4{font-size:17px;margin-bottom:6px}
.spec-card p{font-size:13.5px;color:var(--mut)}
.full-media{border-radius:20px;overflow:hidden;margin-top:26px}
.cer-row{display:grid;grid-template-columns:repeat(7,1fr);gap:12px}
.cer-min{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;text-align:center}
.cer-min img{aspect-ratio:3/4;width:100%;object-fit:cover}
.cer-min figcaption{font-size:12px;padding:7px 4px;font-weight:700;color:var(--mut)}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:12px;overflow:hidden}
.faq-item summary{cursor:pointer;padding:16px 20px;font-weight:700;font-size:15px;list-style:none;position:relative}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:20px;color:var(--brand);font-weight:900;font-size:20px;transition:.3s}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item p{padding:0 20px 16px;color:var(--mut);font-size:14px}
.sticky-bar{position:fixed;left:0;right:0;bottom:0;z-index:60;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-top:1px solid var(--line);display:none}
.sticky-bar .wrap{display:flex;gap:10px;padding:10px 24px;align-items:center}
.sticky-bar .nm{font-weight:800;font-size:15px;flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sticky-bar .btn{padding:10px 16px;font-size:14px;min-width:0}

/* ================= 二维码 / 联系 ================= */
.contact-zone{background:#0d3a30;color:#fff;border-radius:26px;overflow:hidden}
.contact-zone .wrap{display:grid;grid-template-columns:1.3fr 1fr;gap:30px;padding:44px 40px;align-items:center}
.contact-zone h2{font-size:clamp(24px,3vw,34px);font-weight:800;margin-bottom:12px}
.contact-zone h2 span{color:#7ce0bd}
.contact-zone p{color:rgba(255,255,255,.78);font-size:15px;margin-bottom:18px;max-width:520px}
.c-list li{display:flex;gap:12px;align-items:center;margin-bottom:12px;font-size:15px}
.c-list .l{color:#7ce0bd;font-weight:700;width:76px;flex:0 0 auto}
.qr-card{background:#fff;border-radius:18px;padding:20px;text-align:center;color:var(--ink);justify-self:center;width:230px}
.qr-card img{width:150px;height:150px;object-fit:cover;margin:0 auto 10px;border-radius:8px}
.qr-card b{font-size:15px}
.qr-card span{display:block;color:var(--mut);font-size:12px;margin-top:4px}

/* ================= 页脚 ================= */
.ftr{background:#0a1512;color:#9fb3ab;padding:30px 0;margin-top:70px;font-size:13px}
.ftr .wrap{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;align-items:center}
.ftr .icp{opacity:.7}

/* ================= 返回顶部 / 悬浮购买 ================= */
.backtop{position:fixed;right:22px;bottom:22px;z-index:70;width:46px;height:46px;border-radius:50%;border:0;background:#0b4a39;color:#fff;font-size:20px;cursor:pointer;box-shadow:var(--shadow-lg);opacity:0;pointer-events:none;transition:.3s}
.backtop.show{opacity:1;pointer-events:auto}
.mobile-buy{display:none}

/* ================= 响应式 ================= */
@media(max-width:1024px){
  .flavor-grid{grid-template-columns:repeat(4,1fr)}
  .feat-grid{grid-template-columns:repeat(2,1fr)}
  .cer-row{grid-template-columns:repeat(4,1fr)}
}
@media(max-width:900px){
  .nav-links{position:fixed;inset:68px 0 auto 0;background:var(--card);flex-direction:column;padding:16px 24px 24px;gap:4px;border-bottom:1px solid var(--line);transform:translateY(-130%);transition:transform .35s var(--ease);z-index:79}
  body.nav-open .nav-links{transform:none}
  .nav-links a{font-size:16px}
  .burger{display:block;margin-left:auto}
  .store-mini{margin-left:0}
  .lang-toggle{margin-left:0}
  .prod-grid,.stores,.split{grid-template-columns:1fr}
  .split.rev .media{order:0}
  .detail{grid-template-columns:1fr;gap:26px}
  .buy-row .btn{min-width:140px}
  .contact-zone .wrap{grid-template-columns:1fr;padding:34px 26px}
  .qr-card{width:100%;max-width:300px}
}
@media(max-width:640px){
  .sec{padding:52px 0}
  .flavor-grid{grid-template-columns:repeat(3,1fr)}
  .two-cols{grid-template-columns:1fr}
  .feat-grid{grid-template-columns:1fr 1fr;gap:12px}
  .feat{padding:18px}
  .cer-row{grid-template-columns:repeat(3,1fr)}
  .sticky-bar{display:block}
  .detail-sec{padding-bottom:110px}
  .store-mini{display:none}
  .lang-toggle b{padding:2px 6px}
  .slider{height:70vh}
  .store-card{min-height:180px;padding:28px 22px}
}