/* ============================================================
   爱未央 AVORA · AI Wedding Atelier
   Design system — 白底 / 墨黑 / 酒红
   1 tokens · 2 base · 3 buttons · 4 header · 5 hero · 6 sections
   7 shop · 8 studio · 9 result · 10 product detail · 11 footer
   ============================================================ */

/* ---------- 1. tokens ---------- */
:root{
  --paper:#FFFFFF;
  --paper2:#F8F6F3;
  --paper3:#F1EDE7;
  --ink:#111111;
  --ink2:#565656;
  --ink3:#8E8A85;
  --line:#E9E5DF;
  --line2:#D9D3CB;
  --wine:#A5193C;
  --wine-dk:#8B1331;
  --gold:#B08A4E;
  --serif:'Playfair Display','Noto Serif SC',Georgia,'Songti SC',serif;
  --sans:'Inter','Noto Sans SC',-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
  --maxw:1320px;
}

/* ---------- 2. base ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--sans);font-size:16px;line-height:1.72;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
svg{width:100%;height:100%;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
::selection{background:var(--wine);color:#fff}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 30px}
.display{font-family:var(--serif);font-weight:400;line-height:1.12;letter-spacing:-.01em;margin:0}
.h1{font-size:clamp(2.3rem,5.2vw,4rem)}
.h2{font-size:clamp(1.7rem,3.3vw,2.7rem)}
.h3{font-size:clamp(1.35rem,2.2vw,1.85rem)}
.label{
  display:inline-block;font-size:.63rem;font-weight:500;
  letter-spacing:.28em;text-transform:uppercase;color:var(--wine);margin-bottom:18px;
}
.lead{margin:0;color:var(--ink2);font-size:.97rem;line-height:1.85;max-width:58ch;font-weight:300}

/* reveal */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal-d1{transition-delay:.14s}
.reveal-d2{transition-delay:.26s}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  .marquee-track{animation:none}
}

/* ---------- 3. buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.6em;
  padding:15px 34px;border-radius:999px;border:1px solid transparent;
  font-size:.78rem;font-weight:500;letter-spacing:.13em;text-transform:uppercase;
  transition:.35s var(--ease);white-space:nowrap;cursor:pointer;
}
.btn--wine{background:var(--wine);color:#fff}
.btn--wine:hover{background:var(--wine-dk);transform:translateY(-1px)}
.btn--ghost-l{border-color:rgba(255,255,255,.6);color:#fff}
.btn--ghost-l:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn--ghost{border-color:var(--line2);color:var(--ink2);background:transparent}
.btn--ghost:hover{border-color:var(--ink);color:var(--ink)}
.btn--outline{border-color:var(--ink);color:var(--ink)}
.btn--outline:hover{background:var(--ink);color:#fff}
.btn--block{width:100%}
.btn--xs{padding:10px 20px;font-size:.66rem}
.btn[disabled]{opacity:.34;pointer-events:none}
.link-arrow{font-size:.8rem;letter-spacing:.06em;color:var(--ink);border-bottom:1px solid var(--line2);padding-bottom:3px;transition:.3s}
.link-arrow i{font-style:normal;transition:transform .3s}
.link-arrow:hover{border-color:var(--wine);color:var(--wine)}
.link-arrow:hover i{display:inline-block;transform:translateX(4px)}

/* ---------- 4. header ---------- */
.announce{background:var(--ink);color:rgba(255,255,255,.86);text-align:center}
.announce p{margin:0;padding:9px 16px;font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;font-weight:300}

.nav{position:sticky;top:0;z-index:90;background:rgba(255,255,255,.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav-inner{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:22px;height:82px}
.nav-cluster{display:flex;align-items:center;gap:20px}
.nav-cluster--l{justify-content:flex-end}
.nav-cluster--r{justify-content:flex-start}
.nav-menu{display:flex;align-items:center;gap:26px}
.nav-menu a{
  font-size:.66rem;font-weight:500;letter-spacing:.19em;text-transform:uppercase;
  color:var(--ink);position:relative;padding:4px 0;transition:color .3s;
}
.nav-menu a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:1px;background:var(--wine);transition:width .34s var(--ease)}
.nav-menu a:hover{color:var(--wine)}
.nav-menu a:hover::after{width:100%}
.icon-btn{width:34px;height:34px;padding:8px;color:var(--ink);position:relative;transition:.3s}
.icon-btn:hover{color:var(--wine)}
.icon-btn--bag .count{
  position:absolute;top:0;right:-1px;min-width:16px;height:16px;padding:0 4px;
  background:var(--wine);color:#fff;border-radius:999px;
  font-size:.56rem;line-height:16px;text-align:center;font-weight:600;letter-spacing:0
}
.brand{display:flex;flex-direction:column;align-items:center;gap:3px;position:relative;padding:0 8px}
.brand b{font-family:var(--serif);font-size:1.62rem;font-weight:400;letter-spacing:.34em;text-indent:.34em;line-height:1}
.brand .spark{position:absolute;top:-4px;right:-6px;font-size:.7rem;color:var(--gold);font-style:normal}
.brand small{font-size:.52rem;letter-spacing:.24em;text-transform:uppercase;color:var(--ink3);font-weight:400;white-space:nowrap}
.nav-burger{display:none;width:34px;height:34px;flex-direction:column;justify-content:center;gap:6px;padding:6px}
.nav-burger i{display:block;height:1.4px;background:var(--ink);transition:.3s}

.mobile-menu{
  position:fixed;inset:0 0 auto;top:0;z-index:120;background:var(--paper);
  padding:30px 30px 40px;transform:translateY(-102%);transition:transform .5s var(--ease);
  display:flex;flex-direction:column;gap:2px;max-height:100vh;overflow:auto;
}
body.menu-open .mobile-menu{transform:none;box-shadow:0 30px 80px rgba(0,0,0,.14)}
body.menu-open{overflow:hidden}
.mm-brand{display:flex;flex-direction:column;align-items:center;padding-bottom:26px;margin-bottom:18px;border-bottom:1px solid var(--line)}
.mm-brand b{font-family:var(--serif);font-size:1.5rem;letter-spacing:.32em;text-indent:.32em;font-weight:400}
.mm-brand small{font-size:.55rem;letter-spacing:.22em;text-transform:uppercase;color:var(--ink3)}
.mm-brand span{
  margin-top:14px;text-align:center;font-family:var(--serif);font-style:italic;
  font-size:.82rem;color:var(--ink3);line-height:1.7;letter-spacing:.02em
}
.mobile-menu a:not(.mm-cta){padding:15px 0;font-size:.86rem;letter-spacing:.16em;text-transform:uppercase;border-bottom:1px solid var(--line)}
.mm-cta{margin-top:22px;background:var(--wine);color:#fff;text-align:center;padding:16px;border-radius:999px;font-size:.78rem;letter-spacing:.14em;text-transform:uppercase}

/* ---------- 5. hero ---------- */
.hero{position:relative;height:clamp(520px,88vh,780px);overflow:hidden;background:var(--ink)}
.hero-bg{position:absolute;inset:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;object-position:50% 34%}
.hero-veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,8,7,.46),rgba(10,8,7,.22) 42%,rgba(10,8,7,.62))}
.hero-body{
  position:relative;height:100%;display:flex;flex-direction:column;
  align-items:center;justify-content:center;text-align:center;color:#fff;padding:70px 26px 0;
}
.hero-eyebrow{font-size:.63rem;letter-spacing:.34em;text-transform:uppercase;color:rgba(255,255,255,.82);margin-bottom:22px}
.hero-title{
  font-family:var(--sans);font-weight:600;font-size:clamp(2.4rem,7vw,5.2rem);
  line-height:1.02;letter-spacing:-.028em;margin:0;text-shadow:0 2px 40px rgba(0,0,0,.24);
}
.hero-slogan{
  display:flex;flex-direction:column;align-items:center;gap:7px;margin:26px 0 0;
  text-shadow:0 2px 26px rgba(0,0,0,.34)
}
.hero-slogan i{
  font-family:var(--serif);font-style:italic;font-weight:400;
  font-size:clamp(.92rem,1.5vw,1.16rem);color:rgba(255,255,255,.95);letter-spacing:.03em
}
.hero-slogan span{
  font-size:.68rem;letter-spacing:.24em;color:rgba(255,255,255,.7);text-transform:none
}
.hero-sub{margin:22px 0 34px;font-size:clamp(.86rem,1.4vw,1rem);font-weight:300;letter-spacing:.06em;color:rgba(255,255,255,.86)}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;justify-content:center}
.scroll-hint{
  position:absolute;left:50%;bottom:26px;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:9px;
  font-size:.55rem;letter-spacing:.3em;text-transform:uppercase;color:rgba(255,255,255,.6)
}
.scroll-hint i{display:block;width:1px;height:38px;background:linear-gradient(rgba(255,255,255,.7),transparent)}

/* ---------- 6. sections ---------- */
.sec{padding:104px 0}
.sec--paper2{background:var(--paper2)}
.sec-head{max-width:640px}
.sec-head--c{max-width:680px;margin:0 auto;text-align:center}
.sec-head .h2{margin-bottom:18px}
.sec-head .lead{margin:0 auto}
.sec-head--c .lead{margin:0 auto}

/* marquee */
.marquee{border-block:1px solid var(--line);background:var(--paper);overflow:hidden;padding:15px 0}
.marquee-track{display:flex;gap:52px;width:max-content;animation:slide 42s linear infinite}
.marquee-track span{font-family:var(--serif);font-size:.95rem;letter-spacing:.24em;color:var(--ink3);white-space:nowrap}
@keyframes slide{to{transform:translateX(-50%)}}

/* intro + mosaic */
.intro-grid{display:grid;grid-template-columns:minmax(300px,.86fr) 1.14fr;gap:70px;align-items:center}
.intro-copy .h2{margin-bottom:22px}
.intro-actions{display:flex;align-items:center;gap:26px;margin-top:34px;flex-wrap:wrap}
.mosaic{display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:auto auto;gap:14px}
.mosaic figure{margin:0;overflow:hidden;background:var(--paper3);border-radius:2px}
.mosaic figure img{width:100%;height:100%;object-fit:cover;transition:transform 1s var(--ease)}
.mosaic figure:hover img{transform:scale(1.05)}
.m-a{grid-row:1/3;aspect-ratio:3/4.9}
.m-b{grid-column:2/4;aspect-ratio:16/10}
.m-c{grid-column:2/3;aspect-ratio:1/1.16}
.m-d{grid-column:3/4;aspect-ratio:1/1.16}
.m-stat{
  grid-column:2/4;display:flex;flex-direction:column;align-items:flex-start;gap:6px;
  padding:26px 28px;background:var(--paper2);border:1px solid var(--line);border-radius:2px;
}
.m-stat b{font-family:var(--serif);font-size:2.1rem;line-height:1;font-weight:400}
.m-stat span{font-size:.6rem;letter-spacing:.24em;text-transform:uppercase;color:var(--ink3)}
.m-stat .btn{margin-top:12px}

/* category rail */
.sec--rail{padding:84px 0}
.rail-head{text-align:center;margin-bottom:52px}
.rail-head .h2{margin-bottom:10px}
.rail-head p{margin:0;font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;color:var(--ink3)}
.rail{display:grid;grid-template-columns:repeat(8,1fr);gap:18px}
.rail-item{display:flex;flex-direction:column;align-items:center;gap:14px;transition:.35s var(--ease)}
.rail-item .ring{
  width:100%;max-width:132px;aspect-ratio:1;border-radius:50%;overflow:hidden;
  border:1px solid var(--line);padding:0;transition:.45s var(--ease);position:relative;
}
.rail-item .ring img{width:100%;height:100%;object-fit:cover;transition:transform .9s var(--ease)}
.rail-item span{font-size:.68rem;letter-spacing:.1em;color:var(--ink2);text-align:center;transition:color .3s}
.rail-item:hover .ring,.rail-item.on .ring{border-color:var(--wine);padding:4px}
.rail-item:hover .ring img{transform:scale(1.06)}
.rail-item:hover span,.rail-item.on span{color:var(--wine)}
.rail-item.on .ring::after{
  content:"✓";position:absolute;inset:auto auto 8px 50%;transform:translateX(-50%);
  width:22px;height:22px;border-radius:50%;background:var(--wine);color:#fff;
  font-size:.62rem;line-height:22px;text-align:center
}

/* dark quote band */
.quote-band{position:relative;min-height:520px;display:flex;align-items:flex-end;overflow:hidden;background:var(--ink)}
.quote-band>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.72}
.quote-band::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(10,8,7,.82),rgba(10,8,7,.16) 74%)}
.quote-inner{position:relative;z-index:2;color:#fff;padding:0 30px 76px;max-width:var(--maxw);margin:0 auto;width:100%}
.quote-inner .display{font-size:clamp(1.9rem,4.2vw,3.2rem);margin-bottom:20px}
.quote-inner p{max-width:44ch;margin:0 0 30px;font-size:.88rem;line-height:1.95;font-weight:300;color:rgba(255,255,255,.76)}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:64px;border-top:1px solid var(--line)}
.step{padding:38px 34px 0 0;border-right:1px solid var(--line)}
.step:last-child{border-right:0;padding-right:0}
.step-num{font-family:var(--serif);font-size:.86rem;letter-spacing:.2em;color:var(--wine)}
.step h3{font-size:1rem;font-weight:500;letter-spacing:.02em;margin:16px 0 12px}
.step p{margin:0;font-size:.86rem;line-height:1.95;color:var(--ink2);font-weight:300}

/* gal grid */
.gal-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:56px}
.gal-grid figure{margin:0;position:relative;overflow:hidden;background:var(--paper3);border-radius:2px}
.gal-grid img{width:100%;aspect-ratio:3/4;object-fit:cover;transition:transform 1.1s var(--ease)}
.gal-grid figure:hover img{transform:scale(1.05)}
.gal-grid figcaption{
  position:absolute;inset:auto 10px 10px;color:#fff;font-size:.64rem;letter-spacing:.1em;
  text-shadow:0 1px 12px rgba(0,0,0,.6)
}

/* FAQ */
.faq-wrap{display:grid;grid-template-columns:.72fr 1.28fr;gap:66px;align-items:start}
.faqs{border-top:1px solid var(--line)}
.qa{border-bottom:1px solid var(--line)}
.qa summary{
  list-style:none;cursor:pointer;padding:22px 40px 22px 0;position:relative;
  font-size:.94rem;font-weight:500;letter-spacing:.01em;transition:color .3s
}
.qa summary::-webkit-details-marker{display:none}
.qa summary:hover{color:var(--wine)}
.qa summary i{position:absolute;right:6px;top:50%;width:11px;height:11px;transform:translateY(-50%)}
.qa summary i::before,.qa summary i::after{content:"";position:absolute;background:var(--ink2);transition:.3s}
.qa summary i::before{left:0;top:5px;width:11px;height:1.2px}
.qa summary i::after{left:5px;top:0;width:1.2px;height:11px}
.qa[open] summary i::after{opacity:0}
.qa[open] summary{color:var(--wine)}
.qa .ans{padding:0 40px 24px 0;font-size:.86rem;line-height:1.95;color:var(--ink2);font-weight:300}

/* ---------- 7. shop ---------- */
.shop-bar{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-bottom:22px;border-bottom:1px solid var(--line);margin-bottom:36px}
.crumbs{display:flex;gap:10px;font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink3)}
.crumbs a:hover{color:var(--wine)}
.crumbs i{opacity:.5;font-style:normal}
.crumbs span{color:var(--ink)}
.shop-tools{display:flex;align-items:center;gap:14px}
.tool{
  display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border:1px solid var(--line2);
  border-radius:999px;font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;transition:.3s
}
.tool svg{width:15px;height:15px}
.tool:hover{border-color:var(--ink)}
.sort{font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink2);cursor:pointer}
.sort i{font-style:normal;margin-left:4px}

.shop-grid{display:grid;grid-template-columns:224px 1fr;gap:52px;align-items:start}
.filters{position:sticky;top:112px}
.fgroup{padding-bottom:26px;margin-bottom:26px;border-bottom:1px solid var(--line)}
.fgroup:last-child{border-bottom:0}
.fgroup h4{
  margin:0 0 14px;font-size:.66rem;font-weight:600;letter-spacing:.22em;
  text-transform:uppercase;position:relative;padding-left:13px
}
.fgroup h4::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:2px;height:12px;background:var(--wine)}
.flist{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.fcat{
  font-size:.78rem;color:var(--ink2);text-align:left;padding:5px 0;width:100%;
  letter-spacing:.02em;transition:.25s;font-weight:300
}
.fcat:hover{color:var(--wine);padding-left:5px}
.fcat.on{color:var(--wine);font-weight:500}
.price-range input[type=range]{width:100%}
.pr-row{display:flex;justify-content:space-between;font-size:.72rem;color:var(--ink3);margin-top:8px;letter-spacing:.06em}
.dots{display:flex;gap:11px}
.dot{width:19px;height:19px;border-radius:50%;background:var(--c);border:1px solid var(--line2);transition:.3s}
.dot:hover{transform:scale(1.16);border-color:var(--ink3)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  padding:6px 13px;border:1px solid var(--line2);border-radius:999px;
  font-size:.7rem;color:var(--ink2);transition:.28s
}
.chip:hover{border-color:var(--ink);color:var(--ink)}
.chip.on{background:var(--ink);color:#fff;border-color:var(--ink)}

/* style cards */
.styles-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px 22px}
.scard{display:block;text-align:left;padding:0;position:relative}
.scard .ph{position:relative;overflow:hidden;background:var(--paper3);border-radius:2px;aspect-ratio:3/4}
.scard .ph img{width:100%;height:100%;object-fit:cover;transition:transform 1.1s var(--ease)}
.scard:hover .ph img{transform:scale(1.055)}
.scard .badge{
  position:absolute;top:0;left:0;background:var(--wine);color:#fff;
  font-size:.58rem;letter-spacing:.14em;text-transform:uppercase;padding:6px 10px;font-weight:500
}
.scard .pick{
  position:absolute;top:12px;right:12px;width:26px;height:26px;border-radius:50%;
  background:var(--wine);color:#fff;font-size:.7rem;line-height:26px;text-align:center;
  opacity:0;transform:scale(.6);transition:.35s var(--ease)
}
.scard.is-active .pick{opacity:1;transform:none}
.scard.is-active .ph{box-shadow:0 0 0 2px var(--wine)}
.scard .meta{padding:16px 2px 0;text-align:center}
.scard .meta b{display:block;font-size:.9rem;font-weight:500;letter-spacing:.03em;transition:color .3s}
.scard:hover .meta b{color:var(--wine)}
.scard .meta i{
  display:block;font-style:normal;font-size:.6rem;letter-spacing:.2em;
  text-transform:uppercase;color:var(--ink3);margin-top:5px
}
.scard .meta .price{
  display:flex;align-items:baseline;justify-content:center;gap:8px;
  margin-top:9px;font-size:.8rem;color:var(--wine);letter-spacing:.04em
}
.scard .meta .price s{color:var(--ink3);font-size:.72rem}

/* ---------- 8. studio ---------- */
.sec--studio{background:var(--paper);padding:104px 0 116px}
.studio-grid{display:grid;grid-template-columns:1.24fr .76fr;gap:56px;margin-top:66px;align-items:start}

.stage{
  position:relative;background:var(--paper2);border:1px solid var(--line);border-radius:3px;
  aspect-ratio:4/5;display:flex;align-items:center;justify-content:center;overflow:hidden;
}
.stage::before{
  content:"";position:absolute;inset:14px;border:1px solid rgba(17,17,17,.07);
  border-radius:2px;pointer-events:none;z-index:1
}
.stage-empty{text-align:center;color:var(--ink3);padding:30px;z-index:2}
.stage-empty svg{width:42px;height:42px;margin:0 auto 18px;color:var(--line2);stroke-width:1.1}
.stage-empty b{display:block;font-size:.9rem;font-weight:500;color:var(--ink2);margin-bottom:7px}
.stage-empty p{margin:0;font-size:.78rem;letter-spacing:.03em}
.preview-img{position:absolute;top:0;height:100%;width:50%;object-fit:cover}
#previewImg{left:0}
#previewImg2{right:0}
.stage.is-duo .preview-img{width:50%}
.stage:not(.is-duo) #previewImg{width:100%;left:0}

.gen-overlay{
  position:absolute;inset:0;z-index:5;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:30px;
  background:rgba(248,246,243,.95);backdrop-filter:blur(4px);
  opacity:0;pointer-events:none;transition:opacity .45s var(--ease)
}
.gen-overlay.on{opacity:1;pointer-events:auto}
.gen-ring{position:relative;width:104px;height:104px}
.gen-ring svg{transform:rotate(-90deg);stroke-width:2.4}
.gen-ring circle.bgc{stroke:var(--line);fill:none}
.gen-ring circle.fgc{stroke:var(--wine);fill:none;transition:stroke-dashoffset .28s linear;stroke-linecap:round}
.gen-pct{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-family:var(--serif);font-size:1.28rem;color:var(--ink)
}
.gen-steps{list-style:none;margin:0;padding:0;text-align:left;min-width:236px}
.gen-steps li{
  position:relative;padding-left:20px;font-size:.78rem;letter-spacing:.04em;
  color:var(--ink3);margin-bottom:11px;transition:color .35s
}
.gen-steps li::before{content:"";position:absolute;left:0;top:11px;width:9px;height:1px;background:currentColor}
.gen-steps li.on{color:var(--wine)}
.gen-steps li.done{color:var(--ink2)}

.controls{display:flex;flex-direction:column;gap:30px;position:sticky;top:112px}
.ctrl-block{border-bottom:1px solid var(--line);padding-bottom:26px}
.ctrl-block:last-of-type{border-bottom:0}
.ctrl-label{
  display:block;font-size:.63rem;font-weight:600;letter-spacing:.22em;
  text-transform:uppercase;color:var(--ink3);margin-bottom:16px
}

.duo{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.duo-slot{
  position:relative;aspect-ratio:1/1.22;border:1px dashed var(--line2);border-radius:2px;
  background:var(--paper2);cursor:pointer;overflow:hidden;transition:.32s var(--ease);
  display:flex;align-items:center;justify-content:center
}
.duo-slot:hover,.duo-slot.is-over{border-color:var(--wine);background:#fff}
.duo-slot.has-photo{border-style:solid;border-color:var(--line)}
.duo-slot img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.duo-ph{display:flex;flex-direction:column;align-items:center;gap:9px;color:var(--ink3)}
.duo-tag{
  position:absolute;top:9px;left:9px;font-size:.6rem;letter-spacing:.16em;
  text-transform:uppercase;color:var(--ink2);z-index:2;background:rgba(255,255,255,.86);padding:3px 8px;border-radius:2px
}
.duo-plus{font-size:1.5rem;font-weight:200;line-height:1;color:var(--line2);transition:.3s}
.duo-slot:hover .duo-plus{color:var(--wine)}
.duo-ph small{font-size:.66rem;letter-spacing:.1em}
.duo-check{
  position:absolute;bottom:9px;left:9px;z-index:2;font-size:.6rem;letter-spacing:.1em;
  background:var(--wine);color:#fff;padding:3px 9px;border-radius:2px
}
.duo-del{
  position:absolute;top:7px;right:7px;z-index:3;width:24px;height:24px;border-radius:50%;
  background:rgba(17,17,17,.6);color:#fff;font-size:.9rem;line-height:1;transition:.28s
}
.duo-del:hover{background:var(--wine)}
.upload-tip{margin:16px 0 0;font-size:.73rem;line-height:1.8;color:var(--ink3)}
.upload-tip b{display:block;font-weight:500;color:var(--ink2);margin-bottom:4px}
.upload-tip span{display:block}

.picked-style{
  display:flex;align-items:center;gap:14px;padding:13px;border:1px solid var(--line);
  border-radius:2px;background:var(--paper2)
}
.picked-style .sw{width:54px;height:68px;object-fit:cover;border-radius:2px;flex:0 0 auto}
.picked-style .tx b{display:block;font-size:.88rem;font-weight:500}
.picked-style .tx small{display:block;font-size:.68rem;letter-spacing:.06em;color:var(--ink3);margin-top:4px}
.picked-style .none{font-size:.78rem;color:var(--ink3);letter-spacing:.04em}

.slider-wrap{display:flex;align-items:center;gap:18px}
input[type=range]{
  -webkit-appearance:none;appearance:none;flex:1;height:1.5px;background:var(--line2);outline:none;cursor:pointer
}
input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none;width:17px;height:17px;border-radius:50%;background:var(--wine);
  border:3px solid #fff;box-shadow:0 0 0 1px var(--wine);cursor:pointer
}
input[type=range]::-moz-range-thumb{
  width:14px;height:14px;border-radius:50%;background:var(--wine);border:3px solid #fff;
  box-shadow:0 0 0 1px var(--wine);cursor:pointer
}
.slider-val{font-size:.78rem;letter-spacing:.08em;color:var(--wine);min-width:44px;text-align:right;font-variant-numeric:tabular-nums}

.ratio-row{display:flex;gap:8px;flex-wrap:wrap}
.ratio{
  padding:10px 18px;border:1px solid var(--line2);border-radius:999px;
  font-size:.72rem;letter-spacing:.08em;color:var(--ink2);transition:.3s
}
.ratio:hover{border-color:var(--ink);color:var(--ink)}
.ratio.on{background:var(--ink);border-color:var(--ink);color:#fff}

.actions-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:4px}
.actions-row .btn{flex:1;min-width:130px}

.mode-badge{
  display:inline-flex;align-items:center;gap:9px;flex-wrap:wrap;
  margin-top:18px;padding:9px 15px;border-radius:999px;
  border:1px solid var(--line);background:var(--paper2);font-size:.72rem;color:var(--ink2)
}
.mode-badge .dot{width:7px;height:7px;border-radius:50%;flex:0 0 auto;background:var(--gold);box-shadow:0 0 0 3px rgba(176,138,78,.14)}
.mode-badge b{font-weight:500}
.mode-badge small{color:var(--ink3);font-size:.66rem}
.mode-badge.is-live{border-color:rgba(165,25,60,.34);background:rgba(165,25,60,.05)}
.mode-badge.is-live .dot{background:#3E8E5A;box-shadow:0 0 0 3px rgba(62,142,90,.16)}
.mode-badge.is-checking .dot{animation:mbPulse 1.2s ease-in-out infinite}
@keyframes mbPulse{0%,100%{opacity:.3}50%{opacity:1}}
.pill-note{margin:12px 0 0;font-size:.73rem;line-height:1.8;color:var(--ink3);transition:color .3s}

/* ---------- 9. result ---------- */
#resultBlock .sec-head--c{max-width:none;text-align:center}
.result-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.result-grid[data-n="1"]{grid-template-columns:minmax(0,420px);justify-content:center}
.result-grid[data-n="2"]{grid-template-columns:repeat(2,1fr)}
.result-item{position:relative;border-radius:2px;overflow:hidden;background:var(--paper3);aspect-ratio:3/4}
.result-item img,.result-item canvas{width:100%;height:100%;object-fit:cover;display:block}
.result-item .dl{
  position:absolute;inset:auto 10px 10px auto;background:#fff;color:var(--ink);
  border-radius:999px;padding:7px 15px;font-size:.66rem;letter-spacing:.12em;
  text-transform:uppercase;opacity:0;transform:translateY(7px);transition:.32s var(--ease)
}
.result-item:hover .dl{opacity:1;transform:none}

.ba-row{display:grid;grid-template-columns:minmax(240px,380px) 1fr;gap:44px;margin-top:32px;align-items:center}
.ba{
  position:relative;border-radius:2px;overflow:hidden;user-select:none;cursor:ew-resize;
  aspect-ratio:3/4;background:var(--paper3)
}
.ba img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.ba .after{clip-path:inset(0 0 0 50%)}
.ba .handle{
  position:absolute;top:0;bottom:0;left:50%;width:1.5px;background:#fff;
  transform:translateX(-50%);z-index:4;box-shadow:0 0 14px rgba(0,0,0,.34)
}
.ba .handle::after{
  content:"";position:absolute;top:50%;left:50%;width:34px;height:34px;
  transform:translate(-50%,-50%);border-radius:50%;background:#fff;
  box-shadow:0 3px 14px rgba(0,0,0,.25)
}
.ba .handle::before{
  content:"◄ ►";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  font-size:.5rem;letter-spacing:.1em;color:var(--ink);z-index:5;white-space:nowrap
}
.ba .tagl{
  position:absolute;bottom:12px;z-index:3;font-size:.58rem;letter-spacing:.2em;
  text-transform:uppercase;color:#fff;background:rgba(10,8,7,.54);padding:4px 10px;border-radius:2px
}
.ba .tagl.l{left:12px}
.ba .tagl.r{right:12px}
.ba-row .lead{margin-bottom:0}

/* ---------- 10. product detail ---------- */
.pd-grid{display:grid;grid-template-columns:1.04fr .96fr;gap:58px;align-items:start}
.pd-media{position:sticky;top:112px}
.pd-main{background:var(--paper3);border-radius:2px;overflow:hidden;aspect-ratio:4/5}
.pd-main img{width:100%;height:100%;object-fit:cover}
.pd-thumbs{display:grid;grid-template-columns:repeat(4,1fr);gap:11px;margin-top:11px}
.pd-thumbs button{padding:0;border:1px solid transparent;border-radius:2px;overflow:hidden;transition:.3s;background:var(--paper3)}
.pd-thumbs button img{width:100%;aspect-ratio:1;object-fit:cover}
.pd-thumbs button.on{border-color:var(--wine)}
.pd-thumbs button:hover{opacity:.82}

.pd-info .h3{margin-bottom:14px}
.pd-price{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.pd-price b{font-family:var(--serif);font-size:1.72rem;font-weight:500;color:var(--wine)}
.pd-price s{color:var(--ink3);font-size:.92rem}
.pd-price .sale{
  font-size:.56rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;
  background:var(--wine);color:#fff;padding:4px 9px;border-radius:2px
}
.pd-eyes{display:flex;align-items:center;gap:9px;font-size:.76rem;color:var(--ink2);margin-bottom:20px}
.pd-eyes b{font-weight:600;color:var(--ink)}
.live-dot{width:7px;height:7px;border-radius:50%;background:#3E8E5A;box-shadow:0 0 0 3px rgba(62,142,90,.16);animation:mbPulse 1.6s ease-in-out infinite}
.pd-desc{font-size:.88rem;line-height:1.95;color:var(--ink2);font-weight:300;margin:0 0 20px}
.pd-links{display:flex;flex-wrap:wrap;gap:20px;padding:16px 0;border-block:1px solid var(--line);margin-bottom:22px}
.pd-links a{font-size:.74rem;letter-spacing:.06em;color:var(--ink2);border-bottom:1px solid var(--line2);padding-bottom:2px;transition:.3s}
.pd-links a:hover{color:var(--wine);border-color:var(--wine)}
.pd-buy{display:flex;gap:11px;align-items:stretch}
.qty{display:flex;align-items:center;border:1px solid var(--line2);border-radius:999px;overflow:hidden;flex:0 0 auto}
.qty button{width:40px;height:100%;font-size:1rem;color:var(--ink2);transition:.25s}
.qty button:hover{color:var(--wine)}
.qty span{min-width:30px;text-align:center;font-size:.85rem;font-variant-numeric:tabular-nums}
.pd-buy .btn{flex:1}
.pd-meta{list-style:none;margin:24px 0 0;padding:0;display:flex;flex-direction:column;gap:11px}
.pd-meta li{font-size:.8rem;color:var(--ink2);font-weight:300;display:flex;gap:12px;align-items:baseline}
.pd-meta b{
  font-size:.6rem;letter-spacing:.16em;text-transform:uppercase;color:var(--ink);
  min-width:66px;font-weight:600
}

.pd-tabs{margin-top:78px;border-top:1px solid var(--line)}
.tab-head{display:flex;gap:36px;justify-content:center;padding:22px 0;border-bottom:1px solid var(--line);flex-wrap:wrap}
.tab-head button{
  font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink3);
  padding:6px 0;position:relative;transition:color .3s
}
.tab-head button::after{content:"";position:absolute;left:0;right:0;bottom:-23px;height:1.5px;background:var(--wine);transform:scaleX(0);transition:transform .36s var(--ease)}
.tab-head button.on{color:var(--ink)}
.tab-head button.on::after{transform:none}
.tab-pane{display:none;padding:40px 0 0;max-width:none}
.tab-pane.on{display:block;animation:fadeUp .6s var(--ease)}
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.tab-pane>p{max-width:78ch;font-size:.88rem;line-height:1.95;color:var(--ink2);font-weight:300;margin:0 0 34px}
.feat-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.feat-grid h4{font-size:.66rem;font-weight:600;letter-spacing:.22em;text-transform:uppercase;margin:0 0 18px;padding-left:13px;position:relative}
.feat-grid h4::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:2px;height:12px;background:var(--wine)}
.feat-grid ul{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:12px}
.feat-grid li{position:relative;padding-left:18px;font-size:.84rem;color:var(--ink2);font-weight:300;line-height:1.8}
.feat-grid li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:1px;background:var(--wine)}
.feat-grid figure{margin:0;border-radius:2px;overflow:hidden;background:var(--paper3)}
.feat-grid figure img{width:100%;aspect-ratio:4/3;object-fit:cover}

.plans-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:78px}
.plan{border:1px solid var(--line);border-radius:2px;padding:0 0 24px;text-align:center;transition:.4s var(--ease);background:var(--paper)}
.plan:hover{border-color:var(--ink);transform:translateY(-4px)}
.plan--hot{border-color:var(--wine)}
.plan-img{position:relative;overflow:hidden;background:var(--paper3)}
.plan-img img{width:100%;aspect-ratio:4/3.4;object-fit:cover;transition:transform 1s var(--ease)}
.plan:hover .plan-img img{transform:scale(1.05)}
.plan-img .badge{
  position:absolute;top:12px;left:12px;background:var(--wine);color:#fff;
  font-size:.58rem;letter-spacing:.14em;text-transform:uppercase;padding:5px 10px;border-radius:2px
}
.plan h4{margin:22px 0 8px;font-size:1rem;font-weight:500;letter-spacing:.02em}
.plan p{margin:0;font-size:.78rem;color:var(--ink3);letter-spacing:.04em}
.plan .price{display:flex;align-items:baseline;justify-content:center;gap:10px;margin-top:14px}
.plan .price b{font-family:var(--serif);font-size:1.4rem;font-weight:500;color:var(--wine)}
.plan .price s{color:var(--ink3);font-size:.8rem}

/* ---------- 11. footer ---------- */
.foot{background:var(--ink);color:rgba(255,255,255,.66);padding:74px 0 30px;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:44px}
.foot-brand{position:relative}
.foot-brand b{font-family:var(--serif);font-size:1.5rem;letter-spacing:.32em;color:#fff;font-weight:400}
.foot-brand .spark{position:absolute;top:-4px;left:calc(1.5rem * 3.6);font-size:.66rem;color:var(--gold);font-style:normal}
.foot-brand small{display:block;font-size:.55rem;letter-spacing:.22em;text-transform:uppercase;color:rgba(255,255,255,.42);margin-top:6px}
.foot-brand p{margin:18px 0 0;font-size:.82rem;font-weight:300;line-height:1.9;max-width:30ch}
.foot-brand .foot-slogan{display:flex;flex-direction:column;gap:7px;margin:20px 0 0}
.foot-slogan i{font-family:var(--serif);font-style:italic;font-size:.94rem;color:rgba(255,255,255,.86);letter-spacing:.03em;line-height:1.6}
.foot-slogan span{font-size:.66rem;letter-spacing:.2em;color:rgba(255,255,255,.44)}
.foot-col h5{font-size:.64rem;letter-spacing:.22em;text-transform:uppercase;color:#fff;margin:0 0 18px;font-weight:600}
.foot-col a{display:block;font-size:.82rem;font-weight:300;padding:6px 0;transition:color .3s}
.foot-col a:hover{color:#fff}
.foot-sub{font-size:.78rem;font-weight:300;margin:0 0 14px;line-height:1.8}
.sub-form{display:flex;border-bottom:1px solid rgba(255,255,255,.24);padding-bottom:8px}
.sub-form input{flex:1;background:none;border:0;outline:none;color:#fff;font-size:.8rem;padding:6px 0}
.sub-form input::placeholder{color:rgba(255,255,255,.36)}
.sub-form button{color:#fff;font-size:1rem;padding:0 6px;transition:transform .3s}
.sub-form button:hover{transform:translateX(4px)}
.foot-base{
  display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;
  margin-top:56px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  font-size:.68rem;letter-spacing:.06em;color:rgba(255,255,255,.4)
}

/* toast */
.toast{
  position:fixed;left:50%;bottom:34px;transform:translate(-50%,26px);z-index:200;
  background:var(--ink);color:#fff;padding:13px 26px;border-radius:999px;
  font-size:.78rem;letter-spacing:.06em;opacity:0;pointer-events:none;transition:.42s var(--ease)
}
.toast.on{opacity:1;transform:translate(-50%,0)}

/* ---------- 12. responsive ---------- */
@media (max-width:1180px){
  .rail{grid-template-columns:repeat(4,1fr);gap:24px}
  .gal-grid{grid-template-columns:repeat(3,1fr)}
  .intro-grid{gap:46px}
}
@media (max-width:1024px){
  .wrap{padding:0 24px}
  .sec{padding:84px 0}
  .nav-menu{display:none}
  .nav-burger{display:flex}
  .nav-inner{grid-template-columns:auto 1fr auto;height:70px;gap:12px}
  .nav-cluster--l{justify-content:flex-start}
  .nav-cluster--r{justify-content:flex-end}
  .brand b{font-size:1.34rem}
  .intro-grid{grid-template-columns:1fr;gap:44px}
  .studio-grid{grid-template-columns:1fr;gap:38px}
  .controls,.pd-media{position:static}
  .shop-grid{grid-template-columns:1fr;gap:0}
  .filters{
    position:static;display:none;background:var(--paper);border:1px solid var(--line);
    border-radius:2px;padding:24px;margin-bottom:28px
  }
  .filters.open{display:block}
  .pd-grid{grid-template-columns:1fr;gap:36px}
  .faq-wrap{grid-template-columns:1fr;gap:34px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:34px}
  .stage{aspect-ratio:1/1}
}
@media (max-width:760px){
  body{font-size:15px}
  .sec{padding:66px 0}
  .wrap{padding:0 18px}
  .announce p{font-size:.6rem;letter-spacing:.1em}
  /* 窄屏导航减负：左侧只留搜索，右侧只留购物袋 + 汉堡，避免挤出视口 */
  .hide-sm{display:none!important}
  .nav-cluster{gap:14px}
  .brand b{font-size:1.16rem;letter-spacing:.24em;text-indent:.24em}
  .brand small{font-size:.4rem;letter-spacing:.08em}
  .nav-burger{flex:0 0 auto}
  .mosaic{grid-template-columns:1fr 1fr}
  .m-a{grid-row:auto;grid-column:1/2;aspect-ratio:3/4}
  .m-b{grid-column:1/3;aspect-ratio:16/10}
  .m-c{grid-column:1/2;aspect-ratio:3/4}
  .m-d{grid-column:2/3;aspect-ratio:3/4}
  .m-stat{grid-column:1/3}
  .rail{grid-template-columns:repeat(4,1fr);gap:16px}
  .rail-item .ring{max-width:88px}
  .rail-item span{font-size:.6rem}
  .styles-grid{grid-template-columns:repeat(2,1fr);gap:20px 14px}
  .gal-grid{grid-template-columns:repeat(2,1fr);gap:10px}
  .steps{grid-template-columns:1fr;border-top:0}
  .step{border-right:0;border-top:1px solid var(--line);padding:26px 0 0;margin-bottom:26px}
  .result-grid{grid-template-columns:repeat(2,1fr)}
  .result-grid[data-n="1"]{grid-template-columns:minmax(0,1fr)}
  .ba-row{grid-template-columns:1fr;gap:28px}
  .ba{max-width:420px;margin:0 auto}
  .plans-grid{grid-template-columns:1fr;gap:18px;margin-top:52px}
  .feat-grid{grid-template-columns:1fr;gap:26px}
  .pd-tabs{margin-top:52px}
  .tab-head{gap:22px;padding:16px 0}
  .tab-head button{font-size:.66rem}
  .tab-head button::after{bottom:-17px}
  .quote-band{min-height:420px}
  .quote-inner{padding:0 18px 54px}
  .foot{padding:56px 0 24px}
  .foot-grid{grid-template-columns:1fr;gap:30px}
  .hero{height:76vh;min-height:460px}
  .scroll-hint{display:none}
  .duo-slot{aspect-ratio:1/1.1}
  .actions-row .btn{flex:1 1 100%}
  .pd-buy{flex-direction:column}
  .qty{justify-content:center;height:48px}
}
@media (max-width:420px){
  .rail{grid-template-columns:repeat(3,1fr)}
  .rail-item span{font-size:.56rem;letter-spacing:.02em}
  .styles-grid{gap:18px 12px}
  .scard .meta{padding-top:12px}
  .scard .meta b{font-size:.82rem}
  .scard .meta i{font-size:.54rem;letter-spacing:.14em}
  .scard .meta .price{font-size:.72rem;gap:6px}
  .scard .meta .price s{font-size:.66rem}
  .hero-actions .btn{padding:13px 24px;font-size:.72rem}
}

/* Protected live generation */
#accessBlock[hidden] { display: none; }
#accessCode { width: 100%; border: 1px solid var(--line, #ded8d1); padding: 14px 16px; background: #fff; color: #111; font: inherit; border-radius: 2px; }
#accessCode:focus { outline: 2px solid #A5193C; outline-offset: 2px; }