/* ============================================================
   川流島心 RIVMOSA 共用設計系統 site.css
   取自首頁 v0.41 定案：深綠 #204030 主墨、金銅 #C09070、花磚點綴、
   Playfair+思源宋體 標題、思源黑體+Inter 內文、編輯式排版。
   ============================================================ */

:root{
  --green:#204030; --green-deep:#183024; --green-ink:#1B3527;
  --gold:#B0824E; --gold-bright:#C79A63; --gold-pale:#D9B98A;
  --paper:#F3F1E7; --paper-2:#ECEADD; --card:#E9E7D8;
  --ink:#26302A; --ink-soft:#5C6B60; --line:#D6D4C2;
  --on-green:#F1ECDD; --on-green-soft:#BFBFA8;
  --tile-blue:#2C7FB0; --tile-saffron:#E7B23C; --tile-moss:#4A6350; --tile-celadon:#A7B6AE;
}
:root[data-theme="dark"]{
  --green:#0E1F17; --green-deep:#0A1710; --green-ink:#E8E4D4;
  --gold:#C79A63; --gold-bright:#D8B285; --gold-pale:#E2C098;
  --paper:#12201A; --paper-2:#19271F; --card:#1F2E24;
  --ink:#E9E5D7; --ink-soft:#A6B0A4; --line:#2E4034;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --green:#0E1F17; --green-deep:#0A1710; --green-ink:#E8E4D4;
    --gold:#C79A63; --gold-bright:#D8B285; --gold-pale:#E2C098;
    --paper:#12201A; --paper-2:#19271F; --card:#1F2E24;
    --ink:#E9E5D7; --ink-soft:#A6B0A4; --line:#2E4034;
  }
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto} *{animation:none!important;transition:none!important}}
body{margin:0; background:var(--paper); color:var(--ink);
  font-family:"Inter",-apple-system,"PingFang TC","Noto Sans TC",sans-serif; font-size:17px; line-height:1.75; -webkit-font-smoothing:antialiased}
img{display:block; max-width:100%}
a{color:inherit}
.serif{font-family:"Playfair Display","Songti TC","Noto Serif TC",Georgia,serif}
.mono{font-family:"SF Mono",ui-monospace,"JetBrains Mono",Menlo,monospace}
.wrap{max-width:1120px; margin:0 auto; padding:0 30px}

/* ---------- 公告條 ---------- */
.anno{background:var(--green); color:var(--on-green); text-align:center; font-size:12.5px; letter-spacing:.14em; padding:8px 16px}
.anno .mono{color:var(--gold-pale)}

/* ---------- 導覽 ---------- */
header.nav{position:sticky; top:0; z-index:40; background:color-mix(in srgb,var(--paper) 90%,transparent); backdrop-filter:blur(10px); border-bottom:1px solid var(--line)}
.nav-in{max-width:1220px; margin:0 auto; display:flex; align-items:center; justify-content:space-between; padding:14px 30px}
.nav-logo{height:38px; width:auto}
:root[data-theme="dark"] .nav-logo{filter:brightness(0) invert(1) sepia(.3) saturate(2) hue-rotate(5deg) brightness(.95)}
nav.links{display:flex; gap:30px}
nav.links a{color:var(--ink-soft); text-decoration:none; font-size:13px; letter-spacing:.14em; text-transform:uppercase; position:relative; padding:3px 0}
nav.links a:hover,nav.links a.on{color:var(--green-ink)}
:root[data-theme="dark"] nav.links a:hover,:root[data-theme="dark"] nav.links a.on{color:var(--gold-pale)}
nav.links a::after{content:""; position:absolute; left:0; bottom:-2px; width:0; height:1px; background:var(--gold); transition:width .25s}
nav.links a:hover::after,nav.links a.on::after{width:100%}
.nav-cta{border:1px solid var(--gold); color:var(--gold); background:none; cursor:pointer; font-size:12.5px; letter-spacing:.12em; padding:9px 18px; border-radius:2px; text-decoration:none; transition:.2s}
.nav-cta:hover{background:var(--gold); color:var(--paper)}
@media(max-width:860px){nav.links{display:none}}

/* ---------- 按鈕 ---------- */
.btn-gold{display:inline-block; background:var(--gold); color:#182b20; text-decoration:none; padding:13px 30px; font-size:13.5px; letter-spacing:.1em; border-radius:2px; transition:.2s}
.btn-gold:hover{background:var(--gold-pale)}
.btn-ghost{display:inline-block; border:1px solid rgba(217,185,138,.5); color:var(--gold-pale); text-decoration:none; padding:13px 28px; font-size:13.5px; letter-spacing:.1em; border-radius:2px; transition:.2s}
.btn-ghost:hover{border-color:var(--gold-pale); background:rgba(217,185,138,.08)}
.btn-primary{display:inline-block; background:var(--green); color:var(--paper); text-decoration:none; padding:14px 30px; font-size:14px; letter-spacing:.1em; border-radius:2px; transition:background .2s}
.btn-primary:hover{background:var(--green-ink)}
:root[data-theme="dark"] .btn-primary{background:var(--gold); color:#14201a}
.btn-arrow{color:var(--green-ink); text-decoration:none; font-size:14px; letter-spacing:.08em; display:inline-flex; align-items:center; gap:9px}
:root[data-theme="dark"] .btn-arrow{color:var(--gold-pale)}
.btn-arrow svg{transition:transform .2s}
.btn-arrow:hover svg{transform:translateX(5px)}

/* ---------- 眉標 ---------- */
.eyebrow{display:flex; align-items:center; gap:14px; margin-bottom:20px}
.eyebrow .ros{width:15px; height:auto; opacity:.85; flex:none}
.eyebrow .mono{font-size:12px; letter-spacing:.22em; text-transform:uppercase; color:var(--gold)}
.eyebrow .zh{font-size:13px; letter-spacing:.14em; color:var(--ink-soft)}
.eyebrow .rule{flex:1; height:1px; background:var(--line)}

/* ---------- 花磚色帶 ---------- */
.band{height:6px; background:linear-gradient(90deg,var(--tile-moss) 0 25%,var(--tile-blue) 0 50%,var(--tile-saffron) 0 75%,var(--tile-celadon) 0 100%)}

/* ---------- 內頁 hero（綠底花磚＋徽章）---------- */
.page-hero{position:relative; background:var(--green-deep); color:var(--on-green); overflow:hidden; text-align:center; padding:66px 24px 72px}
.page-hero .tilebg{position:absolute; inset:0; background-image:url('/assets/img/tile-green.jpg'); background-size:500px; opacity:.24; mix-blend-mode:luminosity}
.page-hero .veil{position:absolute; inset:0; background:radial-gradient(ellipse at center, rgba(24,48,36,.32) 0%, rgba(18,34,26,.86) 74%)}
.page-hero .inner{position:relative; max-width:760px; margin:0 auto}
.page-hero .kick{font-size:12px; letter-spacing:.4em; text-transform:uppercase; color:var(--gold-pale); margin-bottom:26px}
.page-hero .badge{width:190px; height:auto; margin:0 auto 26px; filter:drop-shadow(0 12px 30px rgba(0,0,0,.34))}
.page-hero h1{font-size:clamp(32px,5vw,54px); line-height:1.1; margin:0 0 20px; font-weight:500; letter-spacing:.05em; color:var(--on-green)}
.page-hero .lede{font-size:16px; letter-spacing:.03em; color:var(--on-green-soft); max-width:34em; margin:0 auto}
.page-hero .lede b{color:var(--gold-pale); font-weight:600}

/* ---------- 區塊與文章 ---------- */
section{padding:72px 0}
.sec-title{font-size:clamp(24px,3vw,36px); line-height:1.25; margin:0 0 8px; font-weight:500; color:var(--green-ink); letter-spacing:.03em}
:root[data-theme="dark"] .sec-title{color:var(--green-ink)}
.prose{max-width:40em}
.prose p{font-size:17px; color:var(--ink); margin:0 0 20px; line-height:1.85}
.prose p:last-child{margin-bottom:0}

/* ---------- 象徵物徽章（老虎/鈴蘭）---------- */
.symbols{display:grid; gap:22px}
.symbols .row{display:flex; gap:16px; align-items:flex-start}
.symbols .g{flex:none; width:58px; height:58px; border:1px solid var(--gold); border-radius:50%; display:grid; place-items:center; overflow:hidden}
.symbols .g img{width:44px; height:44px; object-fit:contain}
.symbols h3{margin:0 0 3px; font-size:16px; letter-spacing:.06em; color:var(--green-ink)}
:root[data-theme="dark"] .symbols h3{color:var(--gold-pale)}
.symbols p{margin:0; font-size:14.5px; color:var(--ink-soft); line-height:1.7}

/* ---------- 半幅圖文交錯 ---------- */
.feature{display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center}
.feature .media img{width:100%; height:auto; border-radius:3px; aspect-ratio:4/5; object-fit:cover}
.feature.rev .media{order:-1}
@media(max-width:820px){.feature{grid-template-columns:1fr; gap:32px} .feature.rev .media{order:0}}

/* ---------- 花磚圓形浮水印 ---------- */
.tilemark{position:absolute; width:340px; height:340px; background-image:url('/assets/img/tile-cream.jpg'); background-size:cover; border-radius:50%; opacity:.5; pointer-events:none}

/* ---------- 頁尾 ---------- */
footer{position:relative; background:var(--green-deep); color:var(--on-green-soft); overflow:hidden; padding:56px 24px 40px; text-align:center}
footer .tilebg{position:absolute; inset:0; background-image:url('/assets/img/tile-green.jpg'); background-size:420px; opacity:.16}
footer .fin{position:relative}
footer .flogo{height:52px; margin:0 auto 20px; filter:brightness(0) invert(1) sepia(.4) saturate(2.5) hue-rotate(2deg) brightness(.92)}
footer .fslogan{display:flex; align-items:center; justify-content:center; gap:16px; font-size:17px; letter-spacing:.2em; color:var(--on-green); margin-bottom:6px}
footer .fros{width:16px; height:auto; opacity:.75}
footer .fen{font-size:11px; letter-spacing:.42em; color:var(--gold-pale)}
footer .finfo{font-size:12.5px; letter-spacing:.06em; margin-top:22px; line-height:1.9}
footer .fnav{margin-top:20px; display:flex; gap:20px; justify-content:center; flex-wrap:wrap}
footer .fnav a{color:var(--on-green-soft); text-decoration:none; font-size:12.5px; letter-spacing:.1em}
footer .fnav a:hover{color:var(--gold-pale)}

/* ---------- 產品總覽：系列卡 ---------- */
.collections{display:grid; grid-template-columns:repeat(2,1fr); gap:20px}
@media(max-width:720px){.collections{grid-template-columns:1fr}}
.coll{display:block; text-decoration:none; background:var(--paper); border:1px solid var(--line); border-radius:5px; overflow:hidden; transition:.25s}
.coll:hover{transform:translateY(-4px); border-color:var(--gold)}
.coll img{width:100%; height:210px; object-fit:cover}
.coll .cbody{padding:22px 24px}
.coll .cno{font-family:"SF Mono",monospace; font-size:12px; letter-spacing:.2em; color:var(--gold)}
.coll h3{margin:10px 0 8px; font-size:20px; color:var(--green-ink); letter-spacing:.05em}
:root[data-theme="dark"] .coll h3{color:var(--gold-pale)}
.coll p{margin:0; font-size:14px; color:var(--ink-soft); line-height:1.7}

/* ---------- 產品購買塊 ---------- */
.prodbuy{margin-top:26px}
.prodbuy .price{font-size:15px; color:var(--ink-soft); letter-spacing:.04em; margin-bottom:18px}
.prodbuy .price b{color:var(--green-ink); font-weight:600; font-size:19px; font-variant-numeric:tabular-nums}
:root[data-theme="dark"] .prodbuy .price b{color:var(--gold-bright)}
.prodbuy .btns{display:flex; gap:14px; flex-wrap:wrap; align-items:center}
.itemlist{list-style:none; margin:18px 0 0; padding:0; display:grid; gap:14px}
.itemlist li{border-left:2px solid var(--gold); padding:2px 0 2px 16px}
.itemlist b{color:var(--green-ink)} :root[data-theme="dark"] .itemlist b{color:var(--gold-pale)}
.itemlist span{display:block; font-size:14px; color:var(--ink-soft); margin-top:3px; line-height:1.65}

/* ---------- FAQ ---------- */
.faq{max-width:760px}
.faq .qa{border-bottom:1px solid var(--line); padding:22px 0}
.faq .qa:first-child{border-top:1px solid var(--line)}
.faq .q{font-size:17px; color:var(--green-ink); font-weight:600; letter-spacing:.02em; margin:0 0 8px}
:root[data-theme="dark"] .faq .q{color:var(--gold-pale)}
.faq .a{font-size:15.5px; color:var(--ink-soft); margin:0; line-height:1.8}

/* ---------- 門市資訊卡 ---------- */
.infogrid{display:grid; grid-template-columns:1fr 1fr; gap:18px; max-width:720px}
@media(max-width:640px){.infogrid{grid-template-columns:1fr}}
.infocard{background:var(--paper); border:1px solid var(--line); border-radius:5px; padding:20px 22px}
.infocard .lab{font-size:12px; letter-spacing:.16em; text-transform:uppercase; color:var(--gold); margin-bottom:6px}
.infocard .val{font-size:16px; color:var(--ink); letter-spacing:.02em}
.mapframe{margin-top:30px; border:1px solid var(--line); border-radius:6px; overflow:hidden; aspect-ratio:16/7}
.mapframe iframe{width:100%; height:100%; border:0; display:block}

/* ---------- 企業服務三塊 ---------- */
.services{display:grid; grid-template-columns:repeat(3,1fr); gap:18px}
@media(max-width:820px){.services{grid-template-columns:1fr}}
.svc{background:var(--paper); border:1px solid var(--line); border-radius:5px; padding:26px 24px}
.svc h3{margin:0 0 10px; font-size:18px; color:var(--green-ink); letter-spacing:.04em}
:root[data-theme="dark"] .svc h3{color:var(--gold-pale)}
.svc p{margin:0; font-size:14.5px; color:var(--ink-soft); line-height:1.75}

/* ---------- 聯絡 ---------- */
.contact-list{list-style:none; margin:0; padding:0; display:grid; gap:16px; max-width:560px}
.contact-list li{display:flex; gap:16px; align-items:baseline; border-bottom:1px solid var(--line); padding-bottom:14px}
.contact-list .k{flex:none; width:96px; font-size:12px; letter-spacing:.14em; text-transform:uppercase; color:var(--gold)}
.contact-list .v{font-size:16px; color:var(--ink)}
.contact-list a{color:var(--green-ink); text-decoration:none; border-bottom:1px solid var(--gold)}
:root[data-theme="dark"] .contact-list a{color:var(--gold-pale)}