:root{
  --jade:#2F5D4F; --jade-deep:#22463B; --jade-soft:#3c6f5e;
  --bamboo:#5E8B7E; --paper:#F7F4EC; --paper2:#EFEADD; --line:#e3dccb;
  --gold:#B08D4F; --gold-soft:#c9a86a; --vermilion:#9E3B2F;
  --ink:#2A2A28; --ink-soft:#5b5b55; --white:#fff;
  --serif:"Noto Serif SC","Songti SC","SimSun",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--paper);color:var(--ink);line-height:1.85;-webkit-font-smoothing:antialiased}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
section{padding:90px 0}
h1,h2,h3{font-family:var(--serif);font-weight:600;letter-spacing:1px}
.eyebrow{color:var(--gold);font-size:13px;letter-spacing:4px;font-family:var(--sans);text-transform:uppercase;margin-bottom:12px}
.lead{font-size:16px;color:var(--ink-soft);max-width:640px}
.btn{display:inline-block;background:var(--jade);color:#fff;padding:13px 30px;border-radius:30px;
  text-decoration:none;font-size:14.5px;letter-spacing:1px;transition:.25s;border:1px solid var(--jade)}
.btn:hover{background:var(--jade-deep)}
.btn.ghost{background:transparent;color:var(--jade);border:1px solid var(--jade)}
.btn.ghost:hover{background:var(--jade);color:#fff}

/* NAV - horizontal top nav */
header.nav{position:sticky;top:0;z-index:50;background:var(--jade-deep);
  border-bottom:1px solid rgba(255,255,255,.1);box-shadow:0 4px 18px rgba(0,0,0,.12)}
.nav-inner{max-width:1180px;margin:0 auto;padding:0 24px;height:68px;display:flex;align-items:center;justify-content:space-between}
.nav-inner > nav{margin-left:auto}
.brand{font-family:var(--serif);font-size:22px;color:#fff;letter-spacing:3px;font-weight:700}
.brand small{display:block;font-family:var(--sans);font-size:10px;letter-spacing:3px;color:var(--gold-soft);font-weight:400}
.nav-menu{list-style:none;display:flex;align-items:center;gap:4px;margin:0;padding:0}
.nav-menu li{position:relative}
.nav-menu a{display:block;padding:8px 16px;color:rgba(255,255,255,.92);text-decoration:none;
  font-size:14.5px;letter-spacing:.5px;transition:.25s;border-radius:4px}
.nav-menu a:hover,.nav-menu a.active{color:#fff;background:rgba(255,255,255,.08)}
.nav-menu a.active{border-bottom:2px solid var(--gold-soft);border-radius:4px 4px 0 0}
.nav-cta{display:flex;gap:12px;align-items:center}
.nav-cta .btn{padding:9px 20px;font-size:13px;background:var(--gold);border-color:var(--gold);color:#fff}
.nav-cta .btn:hover{background:var(--gold-soft);border-color:var(--gold-soft)}
.menu-toggle{display:none;background:none;border:none;color:#fff;font-size:26px;cursor:pointer;width:40px;height:40px}
.has-submenu > a::after{content:" ▾";font-size:10px;opacity:.7}
.submenu{position:absolute;top:100%;left:0;background:#fff;min-width:160px;border-radius:8px;
  box-shadow:0 14px 36px rgba(0,0,0,.18);padding:8px 0;opacity:0;visibility:hidden;transform:translateY(10px);transition:.25s}
.has-submenu:hover .submenu{opacity:1;visibility:visible;transform:translateY(0)}
.submenu a{color:var(--ink);padding:10px 18px;font-size:13.5px;white-space:nowrap;border-radius:0}
.submenu a:hover{color:var(--jade);background:var(--paper)}
@media(max-width:980px){
  .nav-menu{position:absolute;top:68px;left:0;right:0;background:var(--jade-deep);flex-direction:column;align-items:stretch;
    gap:0;padding:12px 24px;border-bottom:1px solid rgba(255,255,255,.1);display:none}
  .nav-menu.open{display:flex}
  .nav-menu a{padding:12px 0;border-radius:0;border-bottom:1px solid rgba(255,255,255,.08)}
  .nav-menu a.active{border-bottom:2px solid var(--gold-soft)}
  .submenu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;background:rgba(255,255,255,.05);border-radius:0;padding:0 0 0 14px;display:none}
  .has-submenu.open .submenu{display:block}
  .submenu a{color:rgba(255,255,255,.85);padding:10px 14px;border-bottom:1px solid rgba(255,255,255,.05)}
  .menu-toggle{display:block}
  .nav-cta .ghost{display:none}
}

/* HERO (homepage) */
.hero{position:relative;min-height:88vh;display:flex;align-items:center;color:#fff;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:url("../assets/images/hero_xihu_santan.png") center/cover;transform:scale(1.05)}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(105deg,rgba(34,70,59,.82),rgba(34,70,59,.42) 55%,rgba(34,70,59,.15))}
.hero .wrap{position:relative;z-index:2;width:100%}
.hero .seal{display:inline-block;border:1px solid var(--gold-soft);color:var(--gold-soft);padding:6px 16px;border-radius:4px;font-size:13px;letter-spacing:3px;margin-bottom:22px}
.hero h1{font-size:58px;line-height:1.25;margin-bottom:18px;text-shadow:0 2px 18px rgba(0,0,0,.3)}
.hero h1 em{font-style:normal;color:var(--gold-soft)}
.hero p{font-size:18px;max-width:520px;opacity:.95;margin-bottom:34px}
.hero .scroll{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:2;color:#fff;opacity:.8;font-size:12px;letter-spacing:2px}

/* SUBPAGE HERO */
.subhero{position:relative;background:var(--jade-deep);color:#fff;padding:120px 0 70px;overflow:hidden}
.subhero .wrap{position:relative;z-index:2}
.subhero::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(34,70,59,.95),rgba(34,70,59,.78))}
.breadcrumb{font-size:13px;color:var(--gold-soft);margin-bottom:18px;letter-spacing:1px}
.breadcrumb a{color:var(--gold-soft);text-decoration:none}
.breadcrumb a:hover{text-decoration:underline}
.subhero .eyebrow{color:var(--gold-soft)}
.subhero h1{font-size:44px;line-height:1.3;margin-bottom:14px}
.subhero p{font-size:17px;max-width:620px;opacity:.92;color:rgba(255,255,255,.9)}

/* TRUST */
.trust{background:var(--jade-deep);color:#fff;padding:30px 0}
.trust .wrap{display:flex;flex-wrap:wrap;justify-content:space-around;gap:20px;text-align:center}
.trust .item{flex:1;min-width:160px}
.trust .item b{display:block;font-family:var(--serif);font-size:20px;color:var(--gold-soft);margin-bottom:4px}
.trust .item span{font-size:13px;opacity:.85}

/* SECTION HEAD */
.sec-head{text-align:center;margin-bottom:54px}
.sec-head h2{font-size:34px;color:var(--jade-deep);margin-bottom:10px}
.sec-head .lead{margin:0 auto}

/* PRODUCTS */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:.3s;box-shadow:0 8px 26px rgba(47,93,79,.05)}
.card:hover{transform:translateY(-6px);box-shadow:0 16px 40px rgba(47,93,79,.12)}
.card .ph{height:200px;background:#dfe7e1;background-size:cover;background-position:center}
.card .bd{padding:22px 24px 26px}
.card h3{font-size:20px;color:var(--jade-deep);margin-bottom:8px}
.card .tag{display:inline-block;background:var(--paper2);color:var(--jade);font-size:12px;padding:3px 10px;border-radius:20px;margin-bottom:10px}
.card p{font-size:14px;color:var(--ink-soft);margin-bottom:14px}
.card .price{font-family:var(--serif);color:var(--vermilion);font-size:17px}
.card .more{display:inline-block;margin-top:6px;color:var(--jade);font-size:14px;text-decoration:none;font-weight:600}
.card .more:hover{color:var(--gold)}
@media(max-width:820px){.cards{grid-template-columns:1fr}}

/* STORY */
.story{background:linear-gradient(180deg,#fff,var(--paper))}
.story-grid{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:center}
.story blockquote{font-family:var(--serif);font-size:21px;color:var(--jade-deep);border-left:4px solid var(--gold);padding-left:20px;line-height:2;margin:22px 0}
.story blockquote cite{display:block;font-size:14px;color:var(--ink-soft);font-style:normal;margin-top:10px;font-family:var(--sans)}
.story p{color:var(--ink-soft);margin-bottom:14px}
.story .img{border-radius:16px;overflow:hidden;box-shadow:0 18px 50px rgba(47,93,79,.18)}
.story .img img{width:100%;display:block}
@media(max-width:820px){.story-grid{grid-template-columns:1fr;gap:30px}}

/* CRAFT */
.craft{background:var(--jade-deep);color:#fff}
.craft .sec-head h2{color:#fff}
.craft .sec-head .lead{color:rgba(255,255,255,.8)}
.craft-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.craft .img{border-radius:16px;overflow:hidden}
.craft .img img{width:100%;display:block}
.steps{display:flex;flex-direction:column;gap:20px}
.step{display:flex;gap:18px;align-items:flex-start}
.step .num{width:42px;height:42px;flex:0 0 auto;border-radius:50%;border:1px solid var(--gold-soft);
  color:var(--gold-soft);display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-size:18px}
.step h3{font-size:18px;color:#fff;margin-bottom:4px}
.step p{font-size:14px;color:rgba(255,255,255,.82)}
.craft .principle{margin-top:30px;background:rgba(255,255,255,.07);border:1px solid rgba(176,141,79,.4);
  border-radius:12px;padding:18px 22px;font-family:var(--serif);font-size:17px;color:var(--gold-soft);text-align:center}
@media(max-width:820px){.craft-grid{grid-template-columns:1fr;gap:30px}}

/* KB / FAQ */
.kb{background:var(--paper)}
.faq-cats{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.faq-col h3{font-size:17px;color:var(--jade);margin-bottom:12px;border-bottom:2px solid var(--gold);padding-bottom:8px}
details{border:1px solid var(--line);border-radius:10px;background:#fff;margin-bottom:10px;overflow:hidden}
details summary{cursor:pointer;padding:13px 16px;font-size:14.5px;font-weight:600;color:var(--jade-deep);
  list-style:none;display:flex;justify-content:space-between;align-items:center;gap:10px}
details summary::-webkit-details-marker{display:none}
details summary::after{content:"+";color:var(--gold);font-size:18px;font-weight:400}
details[open] summary::after{content:"−"}
details[open] summary{border-bottom:1px solid var(--line)}
details .ans{padding:12px 16px;font-size:14px;color:var(--ink-soft);line-height:1.8}
.kb-note{text-align:center;margin-top:30px;font-size:13px;color:var(--jade-soft)}
@media(max-width:820px){.faq-cats{grid-template-columns:1fr}}

/* GIFT / MEMBER */
.gift{background:linear-gradient(135deg,#fff,var(--paper2))}
.gift-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.gift-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:30px 26px;text-align:center;box-shadow:0 8px 26px rgba(47,93,79,.05)}
.gift-card .ic{width:54px;height:54px;margin:0 auto 16px;border-radius:50%;background:var(--paper2);
  display:flex;align-items:center;justify-content:center;color:var(--jade);font-size:24px}
.gift-card h3{font-size:19px;color:var(--jade-deep);margin-bottom:10px}
.gift-card p{font-size:14px;color:var(--ink-soft)}
.gift-card .more{display:inline-block;margin-top:14px;color:var(--jade);font-size:14px;text-decoration:none;font-weight:600}
.gift-card .more:hover{color:var(--gold)}
@media(max-width:820px){.gift-grid{grid-template-columns:1fr}}

/* HISTORY */
.history{background:var(--paper)}
.history .sec-head{text-align:left}
.timeline{position:relative;max-width:820px;margin-left:0;padding-left:30px}
.timeline::before{content:"";position:absolute;left:8px;top:6px;bottom:6px;width:2px;background:var(--gold-soft)}
.tl{position:relative;margin-bottom:34px}
.tl::before{content:"";position:absolute;left:-30px;top:6px;width:14px;height:14px;border-radius:50%;background:var(--jade);border:3px solid var(--paper)}
.tl .yr{font-family:var(--serif);color:var(--gold);font-size:16px;margin-bottom:4px}
.tl h3{font-size:18px;color:var(--jade-deep);margin-bottom:4px}
.tl p{font-size:14px;color:var(--ink-soft)}

/* CONTACT */
.contact{background:var(--jade-deep);color:#fff}
.contact .sec-head h2{color:#fff}
.contact .sec-head .lead{color:rgba(255,255,255,.82)}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.contact .info{display:flex;flex-direction:column;gap:16px}
.contact .line{display:flex;gap:14px;align-items:baseline;font-size:15px}
.contact .line b{color:var(--gold-soft);min-width:64px;font-family:var(--serif)}
.subscribe{background:rgba(255,255,255,.07);border:1px solid rgba(176,141,79,.4);border-radius:14px;padding:28px}
.subscribe h3{color:#fff;font-size:20px;margin-bottom:8px}
.subscribe p{font-size:14px;color:rgba(255,255,255,.82);margin-bottom:18px}
.subscribe input{padding:12px 16px;border:none;border-radius:8px;width:100%;margin-bottom:12px;font-family:var(--sans);font-size:14px}
.subscribe .btn{width:100%;text-align:center}
.qr-cards{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.qr-card{background:rgba(255,255,255,.07);border:1px solid rgba(176,141,79,.4);border-radius:14px;padding:22px;text-align:center}
.qr-card img{width:100%;max-width:180px;border-radius:8px;display:block;margin:0 auto 12px}
.qr-card h4{color:#fff;font-size:16px;margin-bottom:4px;font-weight:500}
.qr-card p{font-size:12px;color:rgba(255,255,255,.65)}
@media(max-width:820px){.contact-grid{grid-template-columns:1fr;gap:30px}.qr-cards{grid-template-columns:1fr 1fr;gap:16px}}

/* EXPLORE (homepage teaser to subpages) */
.explore{background:linear-gradient(180deg,#fff,var(--paper))}
.explore .cards .card{display:flex;flex-direction:column}
.explore .card .bd{display:flex;flex-direction:column;flex:1}
.explore .card .more{margin-top:auto}

/* SUBPAGE ARTICLE TYPOGRAPHY */
.article{max-width:820px;margin:0 auto}
.article p{color:var(--ink-soft);margin-bottom:16px;font-size:15.5px}
.article h2{font-size:26px;color:var(--jade-deep);margin:34px 0 14px}
.article h3{font-size:19px;color:var(--jade);margin:24px 0 8px}
.article ul{margin:0 0 16px 22px;color:var(--ink-soft)}
.article ul li{margin-bottom:8px}
.article blockquote{font-family:var(--serif);font-size:20px;color:var(--jade-deep);border-left:4px solid var(--gold);
  padding-left:20px;line-height:2;margin:24px 0}
.article blockquote cite{display:block;font-size:14px;color:var(--ink-soft);font-style:normal;margin-top:8px;font-family:var(--sans)}

/* BREW STEPS */
.brew{background:linear-gradient(180deg,#fff,var(--paper))}
.brew-list{display:flex;flex-direction:column;gap:18px;max-width:820px;margin:0 auto}
.brew-step{display:flex;gap:22px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px 26px;box-shadow:0 6px 20px rgba(47,93,79,.05)}
.brew-step .num{flex:0 0 auto;width:44px;height:44px;border-radius:50%;background:var(--jade);color:#fff;display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-size:20px;font-weight:600}
.brew-step h3{font-size:18px;color:var(--jade-deep);margin-bottom:6px}
.brew-step p{font-size:14.5px;color:var(--ink-soft);line-height:1.75}
.brew-gear{max-width:820px;margin:0 auto 28px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px 26px;box-shadow:0 6px 20px rgba(47,93,79,.05);text-align:center}
.brew-gear h3{font-size:18px;color:var(--jade-deep);margin-bottom:12px}
.brew-gear p{font-size:15px;color:var(--ink-soft);line-height:1.8;margin:0}
.brew-note{max-width:820px;margin:28px auto 0;text-align:center;font-size:15px;color:var(--ink-soft);line-height:1.9;font-style:italic}
@media(max-width:640px){.brew-step{flex-direction:column;gap:14px}.brew-step .num{width:38px;height:38px;font-size:18px}}

/* CTA BAND */
.cta-band{background:var(--jade-deep);color:#fff;text-align:center;padding:60px 0}
.cta-band h2{color:#fff;font-size:28px;margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.85);max-width:560px;margin:0 auto 26px}

/* FOOTER */
footer{background:#1c3a31;color:rgba(255,255,255,.7);padding:40px 0;text-align:center;font-size:13px}
footer .brand{color:#fff;font-size:20px;margin-bottom:10px;font-family:var(--serif);letter-spacing:3px}
footer a{color:var(--gold-soft);text-decoration:none}
footer .links{margin-top:8px}
footer .links a{margin:0 8px}