/* ===========================================================
   麦穗御饮 · 品牌官网
   配色取自概念稿：米白纸底 / 暖金 / 深褐 / 竹藤
   =========================================================== */

:root{
  --paper:#F7F1E5;
  --paper-2:#FBF7EE;
  --paper-3:#EFE6D4;
  --brown:#3F3126;
  --brown-2:#5C4A38;
  --gold:#B8892B;
  --gold-2:#D9B45A;
  --ink:#2B2620;
  --muted:#7A6B58;
  --line:rgba(63,49,38,.14);
  --shadow:0 18px 50px -22px rgba(63,49,38,.45);

  --mu:#5F7B4C;
  --huo:#A6392A;
  --tu:#B0801F;
  --jin:#6B5583;
  --shui:#33474C;

  --serif:"Songti SC","Noto Serif SC","Source Han Serif SC","STSong","SimSun",serif;
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;

  --wrap:1180px;
  --pad:clamp(20px,5vw,64px);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 var(--pad)}

/* ---------- 通用排版 ---------- */
.eyebrow{
  font-size:12px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--gold);font-weight:600;margin-bottom:18px;
}
.eyebrow--light{color:var(--gold-2)}
.display{
  font-family:var(--serif);
  font-weight:600;
  font-size:clamp(26px,3.7vw,40px);
  line-height:1.32;
  letter-spacing:.01em;
}
.display--light{color:#FBF7EE;text-shadow:0 2px 24px rgba(0,0,0,.45)}
.lead{
  margin-top:20px;max-width:62ch;
  color:var(--brown-2);font-size:clamp(15px,1.5vw,17px);
}
.lead--light{color:rgba(251,247,238,.82)}
.footnote{
  margin-top:34px;font-size:12.5px;line-height:1.9;
  color:var(--muted);max-width:78ch;
}
.muted{color:var(--muted)}
.section{padding:clamp(72px,10vw,130px) 0;position:relative;scroll-margin-top:76px}
.section__head{max-width:70ch;margin-bottom:clamp(40px,6vw,68px)}

/* ---------- 导航 ---------- */
.nav{
  position:fixed;inset:0 0 auto 0;z-index:60;
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;padding:18px var(--pad);
  color:#FBF7EE;
  transition:background .35s ease,box-shadow .35s ease,padding .35s ease,color .35s ease;
}
.nav.is-stuck{
  color:var(--brown);
  background:rgba(247,241,229,.94);
  backdrop-filter:blur(14px);
  box-shadow:0 1px 0 var(--line);
  padding:12px var(--pad);
}
.nav__brand{display:flex;align-items:center;gap:10px}
.mark{width:34px;height:34px;fill:none;stroke:currentColor;stroke-width:4.5;stroke-linecap:round;stroke-linejoin:round;flex:none}
.mark--sm{width:40px;height:40px;stroke:var(--brown-2)}
.nav__name{
  font-family:var(--serif);font-size:19px;font-weight:600;letter-spacing:.12em;color:inherit;
}
.nav__links{display:flex;gap:clamp(14px,2.4vw,34px)}
.nav__links a{
  font-size:14px;letter-spacing:.06em;color:inherit;opacity:.85;
  padding-bottom:3px;border-bottom:1px solid transparent;transition:.25s;
}
.nav__links a:hover{border-color:var(--gold);opacity:1}
.nav__toggle{display:none;flex-direction:column;gap:6px;padding:6px}
.nav__toggle span{display:block;width:24px;height:1.5px;background:currentColor}

/* ---------- HERO ---------- */
.hero{
  position:relative;min-height:100svh;
  display:flex;flex-direction:column;justify-content:flex-end;
  padding-bottom:clamp(40px,7vw,80px);
  overflow:hidden;
}
.hero__bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center 62%;
  transform:scale(1.04);
  animation:heroZoom 18s ease-out forwards;
}
@keyframes heroZoom{to{transform:scale(1)}}
.hero__veil{
  position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(30,22,16,.52) 0%,rgba(30,22,16,.18) 34%,rgba(30,22,16,.10) 55%,rgba(38,28,20,.72) 100%);
}
.hero__inner{
  position:relative;z-index:2;
  max-width:var(--wrap);width:100%;margin:0 auto;
  padding:0 var(--pad);color:#FBF7EE;
}
.hero__title{
  font-family:var(--serif);font-weight:600;
  font-size:clamp(40px,7.4vw,86px);line-height:1.18;letter-spacing:.02em;
  text-shadow:0 2px 30px rgba(0,0,0,.28);
}
.hero__sub{
  margin-top:22px;font-size:clamp(13px,1.5vw,16px);
  letter-spacing:.28em;color:rgba(251,247,238,.86);
}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}
.btn{
  display:inline-block;padding:13px 30px;border-radius:2px;
  font-size:14px;letter-spacing:.14em;
  transition:.28s ease;
}
.btn--solid{background:var(--paper-2);color:var(--brown)}
.btn--solid:hover{background:#fff;transform:translateY(-2px)}
.btn--ghost{border:1px solid rgba(251,247,238,.5);color:#FBF7EE}
.btn--ghost:hover{border-color:#FBF7EE;background:rgba(251,247,238,.1)}
.hero__meta{
  position:relative;z-index:2;
  max-width:var(--wrap);width:100%;margin:clamp(36px,6vw,64px) auto 0;
  padding:18px var(--pad) 0;
  display:flex;gap:clamp(16px,4vw,54px);flex-wrap:wrap;
  border-top:1px solid rgba(251,247,238,.22);
  font-size:12.5px;letter-spacing:.16em;color:rgba(251,247,238,.72);
}

/* ---------- 故事 ---------- */
.story__grid{
  display:grid;grid-template-columns:1fr 1.15fr;
  gap:clamp(32px,6vw,90px);align-items:start;
}
.story__head{position:sticky;top:110px}
.story__body p{margin-bottom:20px;max-width:56ch}
.pull{
  font-family:var(--serif);font-size:clamp(30px,4.4vw,52px);
  color:var(--gold);line-height:1.3;
  margin:34px 0;padding-left:26px;
  border-left:3px solid var(--gold);
}
.promise{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:clamp(18px,3vw,40px);
  margin-top:clamp(56px,8vw,96px);
  padding-top:clamp(36px,5vw,56px);
  border-top:1px solid var(--line);
}
.promise__item{padding-right:12px}
.promise__num{
  font-family:var(--serif);font-size:13px;color:var(--gold);
  letter-spacing:.2em;
}
.promise__item h3{
  font-family:var(--serif);font-size:22px;font-weight:600;
  margin:10px 0 10px;
}
.promise__item p{font-size:14.5px;color:var(--muted);line-height:1.85}

/* ---------- 五行茶饮 ---------- */
.tea{background:var(--paper-2)}
.tea__grid{
  display:grid;grid-template-columns:repeat(5,1fr);
  gap:clamp(10px,1.6vw,22px);
}
.card{
  position:relative;display:flex;flex-direction:column;
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:3px;overflow:hidden;
  transition:transform .4s cubic-bezier(.2,.7,.2,1),box-shadow .4s,border-color .4s;
}
.card:hover{transform:translateY(-8px);box-shadow:var(--shadow);border-color:rgba(184,137,43,.45)}
.card__visual{position:relative;aspect-ratio:3/4.2;overflow:hidden;background:linear-gradient(180deg,#FCF8EF 0%,#F3EAD8 100%)}
.card__img{
  position:absolute;inset:0;width:100%;height:100%;
  object-fit:contain;padding:14px 10px;
  transition:opacity .55s ease,transform .8s ease;
}
.card__img--alt{opacity:0}
.card:hover .card__img--main{opacity:0}
.card:hover .card__img--alt{opacity:1;transform:scale(1.04)}
.card__body{padding:16px 16px 20px;border-top:1px solid var(--line)}
.card__row{
  display:flex;align-items:center;justify-content:space-between;
  font-family:var(--serif);font-size:12px;letter-spacing:.18em;
  color:var(--accent);margin-bottom:8px;
}
.card__no{opacity:.6;letter-spacing:.1em}
.card__name{
  font-family:var(--serif);font-size:19px;font-weight:600;line-height:1.4;
  color:var(--ink);
}
.card__sub{font-size:12.5px;color:var(--muted);margin-top:3px;letter-spacing:.04em}
.card__meta{
  display:flex;justify-content:space-between;align-items:baseline;
  margin-top:14px;padding-top:12px;border-top:1px dashed var(--line);
  font-size:12.5px;color:var(--brown-2);
}
.card__price{font-family:var(--serif);font-size:17px;color:var(--accent)}
.card__note{
  margin-top:10px;font-size:12.5px;color:var(--muted);line-height:1.7;
  min-height:2.6em;
}
.card::before{
  content:"";position:absolute;inset:0 auto auto 0;
  width:100%;height:3px;background:var(--accent);opacity:.9;
}

/* ---------- 吉祥物 ---------- */
.mascot__grid{
  display:grid;grid-template-columns:1fr 1.1fr;
  gap:clamp(16px,2.6vw,34px);align-items:start;
}
.mascot figure{margin:0}
.mascot img{
  width:100%;border-radius:3px;
  background:#F1E8D6;
}
.mascot figcaption{
  font-size:12px;color:var(--muted);letter-spacing:.1em;margin-top:10px;
}
.mascot__hero img{aspect-ratio:3/4;object-fit:cover;object-position:center 20%}
.mascot__side{display:grid;gap:clamp(16px,2.6vw,34px)}
.mascot__duo{display:grid;grid-template-columns:1fr 1fr;gap:clamp(16px,2.6vw,34px)}
.mascot__duo img{aspect-ratio:3/4;object-fit:contain;background:#F4ECDC;padding:8px}
.partners{
  display:grid;grid-template-columns:repeat(5,1fr);
  gap:clamp(10px,1.6vw,22px);
  margin-top:clamp(38px,5vw,60px);
  padding-top:clamp(30px,4vw,46px);
  border-top:1px solid var(--line);
}
.partner{text-align:center}
.partner img{
  width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:3px;
  background:#F1E8D6;transition:transform .5s ease;
}
.partner:hover img{transform:translateY(-6px)}
.partner__name{
  font-family:var(--serif);font-size:15px;margin-top:12px;letter-spacing:.08em;
}
.partner__role{font-size:12px;color:var(--muted);letter-spacing:.06em}
.partner__bar{
  width:28px;height:2px;margin:10px auto 0;background:var(--accent);opacity:.8;
}

/* ---------- 茶车 ---------- */
.cart{background:var(--paper-2)}
.cart__band{
  margin:0 0 clamp(34px,5vw,54px);
  border-radius:3px;overflow:hidden;border:1px solid var(--line);
}
.cart__band img{width:100%}
.cart__band figcaption,.cart__viewer figcaption{
  font-size:12px;color:var(--muted);letter-spacing:.1em;
  padding:12px 4px 0;
}
.cart__tabs{
  display:flex;flex-wrap:wrap;gap:8px;
  margin-bottom:22px;padding-bottom:20px;
  border-bottom:1px solid var(--line);
}
.tab{
  padding:9px 18px;border:1px solid var(--line);border-radius:2px;
  font-size:13px;letter-spacing:.1em;color:var(--brown-2);
  transition:.25s;
}
.tab:hover{border-color:var(--gold);color:var(--brown)}
.tab.is-on{background:var(--brown);border-color:var(--brown);color:var(--paper-2)}
.cart__viewer{
  margin:0 auto;max-width:820px;background:var(--paper-3);
  border:1px solid var(--line);border-radius:3px;overflow:hidden;padding-bottom:14px;
}
.cart__viewer img{width:100%;height:auto;display:block}
.cart__viewer figcaption{padding-left:18px}

/* ---------- 洛阳 ---------- */
.luoyang{
  position:relative;overflow:hidden;color:#FBF7EE;
  padding:clamp(110px,15vw,190px) 0;
}
.luoyang__bg{
  position:absolute;inset:0;background-size:cover;background-position:center 40%;
  transform:scale(1.05);
}
.luoyang__veil{
  position:absolute;inset:0;
  background:linear-gradient(102deg,rgba(22,16,11,.96) 0%,rgba(22,16,11,.90) 38%,rgba(22,16,11,.66) 70%,rgba(22,16,11,.42) 100%);
}
.luoyang__inner{position:relative;z-index:2}
.luoyang__stats{
  display:flex;gap:clamp(24px,5vw,70px);flex-wrap:wrap;
  margin-top:clamp(36px,5vw,58px);padding-top:26px;
  border-top:1px solid rgba(251,247,238,.2);
}
.luoyang__stats div{display:flex;align-items:baseline;gap:12px}
.luoyang__stats b{
  font-family:var(--serif);font-size:clamp(30px,4vw,44px);
  font-weight:600;color:#E8C878;line-height:1;text-shadow:0 2px 18px rgba(0,0,0,.5);
}
.luoyang__stats span{font-size:13px;letter-spacing:.1em;color:rgba(251,247,238,.85)}

/* ---------- 页脚 ---------- */
.footer{background:var(--brown);color:rgba(251,247,238,.82);padding:clamp(56px,7vw,86px) 0 34px}
.footer__grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;
  gap:clamp(24px,4vw,56px);
}
.footer .mark{stroke:var(--gold-2)}
.footer__name{font-family:var(--serif);font-size:22px;letter-spacing:.14em;color:#FBF7EE;margin-top:16px}
.footer__slogan{font-size:13px;letter-spacing:.2em;color:rgba(251,247,238,.6);margin-top:6px}
.footer__col h4{
  font-family:var(--serif);font-size:14px;font-weight:600;letter-spacing:.12em;
  color:#FBF7EE;margin-bottom:16px;
}
.footer__col a,.footer__col span{
  display:block;font-size:13.5px;color:rgba(251,247,238,.66);
  margin-bottom:9px;transition:.2s;
}
.footer__col a:hover{color:var(--gold-2)}
.footer__note{
  margin-top:clamp(40px,6vw,64px);padding-top:24px;
  border-top:1px solid rgba(251,247,238,.16);
  font-size:11.5px;line-height:1.95;color:rgba(251,247,238,.45);
  display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.footer__note p{max-width:76ch}

/* ---------- 入场动画 ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .9s cubic-bezier(.2,.7,.2,1),transform .9s cubic-bezier(.2,.7,.2,1)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .hero__bg{animation:none}
  html{scroll-behavior:auto}
}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .tea__grid{grid-template-columns:repeat(3,1fr)}
  .partners{grid-template-columns:repeat(3,1fr)}
  .footer__grid{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
  .nav__links{
    position:fixed;inset:64px 0 auto 0;
    flex-direction:column;gap:0;
    background:rgba(247,241,229,.98);
    backdrop-filter:blur(16px);
    padding:8px var(--pad) 20px;
    border-bottom:1px solid var(--line);
    transform:translateY(-120%);transition:transform .4s cubic-bezier(.2,.7,.2,1);
  }
  .nav__links.is-open{transform:none}
  .nav__links a{padding:14px 0;border-bottom:1px solid var(--line);font-size:15px}
  .nav__toggle{display:flex}
  .story__grid{grid-template-columns:1fr}
  .story__head{position:static}
  .promise{grid-template-columns:1fr}
  .mascot__grid{grid-template-columns:1fr}
  .mascot__hero img{aspect-ratio:4/3;object-position:center 25%}
  .tea__grid{grid-template-columns:repeat(2,1fr)}
  .card__visual{aspect-ratio:3/4}
}
@media (max-width:560px){
  body{font-size:15px}
  .hero{min-height:92svh}
  .hero__meta{gap:14px;font-size:11.5px}
  .tea__grid{grid-template-columns:1fr}
  .card{flex-direction:row}
  .card__visual{width:44%;aspect-ratio:auto}
  .card__body{width:56%;border-top:0;border-left:1px solid var(--line)}
  .partners{grid-template-columns:repeat(2,1fr)}
  .footer__grid{grid-template-columns:1fr}
  .footer__note{flex-direction:column}
  .cart__tabs{gap:6px}
  .tab{padding:8px 13px;font-size:12px}
}

/* ===========================================================
   v1.2 追加：新 LOGO、概念稿产品名、麦穗灵境与盲盒
   =========================================================== */

.nav__logo{width:36px;height:36px;object-fit:contain;display:block}
.nav__name{letter-spacing:.14em}

.card__en{
  font-size:10.5px;line-height:1.5;letter-spacing:.01em;
  color:var(--muted);opacity:.85;margin-top:4px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.card__name{font-size:18.5px;letter-spacing:.01em}
.card__meta span:first-child{white-space:nowrap}

/* --- 麦穗灵境 --- */
.ip{background:var(--paper-2)}
.ip__top{
  display:grid;grid-template-columns:1fr 1fr;
  gap:clamp(28px,5vw,72px);align-items:end;
  margin-bottom:clamp(36px,5vw,64px);
}
.ip__intro p{color:var(--brown-2);font-size:15px;line-height:1.95;margin-bottom:14px;max-width:52ch}
.ip__intro p:last-child{color:var(--muted);font-size:14px}

.ip__stage{
  display:grid;grid-template-columns:0.86fr 1fr;
  gap:clamp(20px,3.4vw,48px);align-items:stretch;
}
.ip__hero{margin:0}
.ip__hero img{
  width:100%;height:100%;object-fit:cover;object-position:center 18%;
  border-radius:3px;background:#F1E8D6;min-height:320px;
}
.ip__hero figcaption{font-size:12px;color:var(--muted);letter-spacing:.1em;margin-top:10px}

.ip__box{
  border:1px solid var(--line);background:var(--paper);
  padding:clamp(22px,3vw,38px);border-radius:3px;
  display:flex;flex-direction:column;justify-content:center;
}
.ip__boxTitle{
  font-family:var(--serif);font-size:clamp(19px,2vw,23px);
  font-weight:600;margin-bottom:14px;letter-spacing:.02em;
}
.ip__box > p{font-size:14.5px;color:var(--brown-2);line-height:1.9}
.ip__list{list-style:none;margin:18px 0 6px}
.ip__list li{
  font-size:14px;color:var(--brown-2);
  padding:11px 0;border-bottom:1px dashed var(--line);line-height:1.7;
}
.ip__list li:last-child{border-bottom:0}
.ip__list b{
  display:inline-block;min-width:5.4em;
  font-weight:600;color:var(--ink);letter-spacing:.04em;
}
.ip__note{font-size:12px;color:var(--muted);margin-top:8px}

/* --- 伙伴卡片文字 --- */
.partner__name{font-size:16px;letter-spacing:.1em;margin-top:12px}
.partner__role{font-size:11.5px;color:var(--muted);letter-spacing:.08em;margin-top:2px}
.partner__quote{
  font-size:11.5px;line-height:1.7;color:var(--muted);
  margin-top:8px;padding:0 6px;opacity:.9;
}

/* --- 页脚 LOGO --- */
.footer__logo{width:54px;height:54px;object-fit:contain;margin-bottom:10px;filter:brightness(0) invert(1) opacity(.9)}

@media (max-width:900px){
  .ip__top{grid-template-columns:1fr;align-items:start}
  .ip__stage{grid-template-columns:1fr}
  .ip__hero img{min-height:0;aspect-ratio:4/3}
}

/* --- v1.2 修正：深底时 LOGO 反白、首屏左侧压暗 --- */
.nav:not(.is-stuck) .nav__logo{filter:brightness(0) invert(1)}
.nav.is-stuck .nav__logo{filter:none}
.hero__veil{
  background:
    linear-gradient(100deg,rgba(24,17,12,.72) 0%,rgba(24,17,12,.46) 34%,rgba(24,17,12,.12) 62%,rgba(24,17,12,.06) 100%),
    linear-gradient(180deg,rgba(30,22,16,.46) 0%,rgba(30,22,16,.10) 32%,rgba(30,22,16,.06) 55%,rgba(32,23,16,.66) 100%);
}
.hero__title{font-size:clamp(34px,5.6vw,68px)}
@media (max-width:860px){
  .hero__title{font-size:clamp(30px,8vw,44px)}
}

/* --- v1.2 修正2：LOGO 用米白圆形底衬托，不再反色（保留原画面） --- */
.nav__logo{
  width:30px;height:30px;padding:4px;box-sizing:content-box;
  background:rgba(251,247,238,.94);border-radius:50%;
}
.nav:not(.is-stuck) .nav__logo{filter:none}
.footer__logo{
  width:42px;height:42px;padding:9px;box-sizing:content-box;
  background:#F7F1E5;border-radius:50%;filter:none;
}
.cart__viewer{max-width:660px}

/* --- v1.2 修正3：洛阳区背景改为右侧立牌，避开原图功效文字 --- */
.luoyang__bg{
  background-size:auto 132% !important;
  background-position:right center !important;
  background-repeat:no-repeat;
}
.luoyang__veil{
  background:linear-gradient(100deg,rgba(20,14,10,.97) 0%,rgba(20,14,10,.94) 42%,rgba(20,14,10,.58) 72%,rgba(20,14,10,.30) 100%) !important;
}


/* --- v1.2 修正4：洛阳区右侧图片带左向遮罩，接缝自然 --- */
.luoyang{background:#180F0A}
.luoyang__photo{
  position:absolute;top:0;right:0;height:100%;
  width:min(58%,760px);object-fit:cover;object-position:right center;
  -webkit-mask-image:linear-gradient(90deg,transparent 0%,#000 30%);
  mask-image:linear-gradient(90deg,transparent 0%,#000 30%);
  opacity:.92;
}
.luoyang__veil{
  background:linear-gradient(96deg,rgba(18,12,8,.97) 0%,rgba(18,12,8,.88) 38%,rgba(18,12,8,.52) 66%,rgba(18,12,8,.15) 100%) !important;
}
@media (max-width:900px){
  .luoyang__photo{width:70%;opacity:.5}
}

/* ===========================================================
   v1.3 追加：会员入口（导航按钮 + 页脚第四列）
   =========================================================== */

.nav__links{margin-left:auto}

.nav__cta{
  flex:none;white-space:nowrap;
  padding:8px 16px;
  border:1px solid rgba(251,247,238,.42);
  border-radius:2px;
  font-size:13px;letter-spacing:.1em;
  color:inherit;
  transition:border-color .25s ease,color .25s ease,background .25s ease;
}
.nav__cta:hover{border-color:var(--gold-2);color:var(--gold-2)}

.nav.is-stuck .nav__cta{border-color:rgba(63,49,38,.26)}
.nav.is-stuck .nav__cta:hover{border-color:var(--gold);color:var(--gold);background:rgba(184,137,43,.06)}

.footer__grid{grid-template-columns:1.5fr .95fr .95fr .95fr 1.15fr}

@media (max-width:1080px){
  .footer__grid{grid-template-columns:1fr 1fr 1fr}
}
@media (max-width:860px){
  .nav__cta{margin-left:auto;padding:7px 12px;font-size:12px;letter-spacing:.06em}
}
@media (max-width:560px){
  .footer__grid{grid-template-columns:1fr 1fr}
  .nav__cta{padding:6px 10px;font-size:11.5px}
}