/* 正品溯源查询系统 前台样式 v3：暖象牙（只做浅色），香槟金细线，宋体标题。字体和图案都在本站，不连外部 CDN */
@font-face{font-family:"SQ Serif Latin";src:url(/static/sq/fonts/serif-latin.woff2) format("woff2");font-weight:400 700;font-display:swap}
@font-face{font-family:"SQ Serif Num";src:url(/static/sq/fonts/serif-cjk-500.woff2) format("woff2");font-weight:500;font-display:swap}
@font-face{font-family:"SQ Serif CJK";src:url(/static/sq/fonts/serif-cjk.woff2?v=2) format("woff2");font-weight:300 700;font-display:swap}
:root{
    --bg:#F4EFE5; --glow:#FFFDF8; --paper:#FBF8F1; --paper2:#F2ECDF;
    --fg:#1C1913; --fg2:#6B6354; --fg3:#9A9180;
    --gold:#85693A; --gold-line:rgba(150,118,62,.55); --gold-faint:rgba(150,118,62,.26);
    --hair:rgba(28,25,19,.16); --bad:#9A3B2B;
    --btn-bg:#1C1913; --btn-fg:#F4EFE5;
    --shadow:0 40px 70px -40px rgba(70,48,12,.32),0 2px 8px rgba(70,48,12,.06);
    --wm:.17;
    --ease:cubic-bezier(.16,1,.3,1);
    --spring:linear(0,.009,.035 2.1%,.141 4.4%,.723 12.9%,.938 16.7%,1.017 19.9%,1.077 23.4%,1.121 27.2%,1.131 30.2%,1.119 33.9%,1.083 38.3%,1.04 43.3%,1.01 48.9%,.995 55.9%,.996 71.9%,1);
    --serif:"SQ Serif CJK","Songti SC","Noto Serif CJK SC","Source Han Serif SC",STSong,"Times New Roman",serif;
    --display:"SQ Serif Latin","Cormorant Garamond","Times New Roman",serif;
    --num:"SQ Serif Num","SQ Serif CJK","Songti SC",Georgia,serif;
    --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{color-scheme:light;-webkit-text-size-adjust:100%;text-size-adjust:100%;background:var(--bg)}
body{position:relative;overflow-x:hidden;margin:0;color:var(--fg);font:400 16px/1.7 var(--sans);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;min-height:100vh;min-height:100dvh;background:radial-gradient(110% 62% at 50% -8%,var(--glow) 0,transparent 62%),var(--bg);background-repeat:no-repeat}
[hidden]{display:none!important}
.tnum{font-variant-numeric:lining-nums tabular-nums}
p{text-wrap:pretty;margin:0}
h1,h2,h3{margin:0;text-wrap:balance}
svg{fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;flex:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none;padding:0;touch-action:manipulation;-webkit-tap-highlight-color:transparent}
a{-webkit-tap-highlight-color:transparent}

/* 背景里的细纹章，很淡 */
.bg{position:absolute;inset:0;overflow:hidden;pointer-events:none;z-index:0;background:
    linear-gradient(180deg,rgba(244,239,229,.5),rgba(244,239,229,.28) 38%,rgba(244,239,229,.78) 100%),
    url(/static/sq/img/hero-light.webp) center/cover no-repeat}
@media (max-width:720px){
    .bg{background-image:linear-gradient(180deg,rgba(244,239,229,.5),rgba(244,239,229,.3) 40%,rgba(244,239,229,.8) 100%),url(/static/sq/img/hero-light-m.webp)}
}
.bg::before{content:"";position:absolute;left:50%;top:calc(max(17vh,72px) + 118px);width:min(112vmin,900px);aspect-ratio:1;margin-left:calc(min(112vmin,900px) / -2);margin-top:calc(min(112vmin,900px) / -2);background:url(/static/sq/rosette.svg) center/contain no-repeat;opacity:var(--wm);-webkit-mask-image:radial-gradient(closest-side,#000 55%,transparent 100%);mask-image:radial-gradient(closest-side,#000 55%,transparent 100%);animation:sq-spin 360s linear infinite;transition:top .7s var(--ease)}
.page.has-result~.bg::before{top:calc(max(7vh,36px) + 60px)}
.page{position:relative;z-index:1;max-width:620px;margin:0 auto;padding:calc(max(17vh,72px) + env(safe-area-inset-top)) max(28px,env(safe-area-inset-left)) calc(32px + env(safe-area-inset-bottom)) max(28px,env(safe-area-inset-right));min-height:100vh;min-height:100dvh;display:flex;flex-direction:column;transition:padding-top .7s var(--ease)}
.page.has-result{padding-top:calc(max(7vh,36px) + env(safe-area-inset-top))}
@supports (animation-timing-function:linear(0,1)){.page{transition-timing-function:var(--spring)}}

/* 标题区 */
.brand{text-align:center;margin-bottom:44px}
.logo{display:inline-grid;place-items:center;width:44px;height:44px;margin:-7px 0;color:var(--gold);transition:transform .5s var(--ease)}
.logo svg{width:30px;height:30px}
.logo:active{transform:scale(.94)}
.kicker{margin-top:26px;font:600 12px/1 var(--display);letter-spacing:.4em;text-indent:.4em;color:var(--gold);text-transform:uppercase}
.brand h1{margin-top:20px;font:400 clamp(30px,6.4vw,44px)/1.25 var(--serif);letter-spacing:.14em;text-indent:.14em}
.rule{display:block;width:44px;height:1px;margin:24px auto 0;background:var(--gold-line)}
.sub{margin-top:20px;color:var(--fg2);font-size:15px;letter-spacing:.12em;text-indent:.12em}
.has-result .brand{margin-bottom:28px}
.has-result .logo svg{width:22px;height:22px}
.has-result .kicker,.has-result .brand .rule,.has-result .sub{display:none}
.has-result .brand h1{margin-top:14px;font-size:15px;letter-spacing:.3em;text-indent:.3em;color:var(--fg2)}

/* 入口：只有一条细线，聚焦时金线从中间展开 */
.field{position:relative;display:flex;align-items:center;gap:2px;height:68px;border-bottom:1px solid var(--hair)}
.field::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;background:var(--gold);transform:scaleX(0);transition:transform .7s var(--ease)}
.field:focus-within::after{transform:scaleX(1)}
.field input{flex:1;min-width:0;height:100%;border:0;outline:0;background:transparent;font:500 clamp(20px,5.2vw,25px)/1 var(--num);letter-spacing:.12em;font-variant-numeric:lining-nums;color:var(--fg);caret-color:var(--gold)}
.field input::placeholder{color:var(--fg3);letter-spacing:.2em;font-weight:400;font-family:var(--serif)}
.icon-btn{display:grid;place-items:center;width:44px;height:48px;color:var(--fg3);transition:color .2s,transform .4s var(--ease)}
@media (hover:hover){.icon-btn:hover{color:var(--gold)}}
.icon-btn:active{transform:scale(.9)}
.icon-btn svg{width:19px;height:19px;stroke-width:1.4}
.go{position:relative;height:48px;min-width:92px;margin-left:8px;padding:0 24px;border-radius:2px;background:var(--btn-bg);color:var(--btn-fg);font:500 16px/1 var(--serif);letter-spacing:.34em;text-indent:.34em;transition:transform .4s var(--ease),opacity .25s}
@media (hover:hover){.go:hover{opacity:.86}}
.go:active{transform:scale(.96)}
.go .spin{display:none;position:absolute;inset:0;margin:auto;width:16px;height:16px;border-radius:50%;border:1.5px solid color-mix(in srgb,var(--btn-fg) 30%,transparent);border-top-color:var(--btn-fg);animation:sq-rot .7s linear infinite}
.is-loading .go{pointer-events:none}
.is-loading .go-text{opacity:0}
.is-loading .go .spin{display:block}
.field.shake{animation:sq-shake .45s var(--ease)}
.hint{text-wrap:balance;margin:18px 0 0;color:var(--fg2);font-size:15px;line-height:1.7;text-align:center;letter-spacing:.06em;transition:color .2s}
.hint.err{color:var(--bad)}
.notice{margin:20px 0 0;padding:12px 16px;border:1px solid var(--gold-faint);color:var(--fg2);font-size:15px;text-align:center}

/* 结果：证书 */
.result{margin-top:36px}
.result:empty{display:none}
.res{position:relative;background:var(--paper);padding:52px 44px 18px;text-align:center;box-shadow:var(--shadow)}
.res::before,.res::after{content:"";position:absolute;pointer-events:none}
.res::before{inset:10px;border:1px solid var(--gold-line)}
.res::after{inset:15px;border:1px solid var(--gold-faint)}
.res>*{position:relative}
.res>.res-art{position:absolute;left:16px;right:16px;top:16px;height:230px;background:url(/static/sq/img/card-silk.webp) center 35%/cover no-repeat;opacity:.34;-webkit-mask-image:radial-gradient(70% 100% at 50% 0,#000 0,transparent 100%);mask-image:radial-gradient(70% 100% at 50% 0,#000 0,transparent 100%);pointer-events:none}
.sq-pop{animation:sq-pop 1s var(--ease) both}
.seal{display:block;width:92px;height:92px;margin:0 auto 26px;color:var(--gold)}
.seal-no{width:64px;height:64px;color:var(--fg3)}
.seal .ring{stroke-dasharray:1;stroke-dashoffset:1;animation:sq-draw 1.6s .15s var(--ease) forwards}
.seal .tick{stroke-dasharray:1;stroke-dashoffset:1;animation:sq-draw .9s .9s var(--ease) forwards}
.seal-art>g,.seal-art>circle:nth-of-type(2){animation:sq-fade 1.4s .3s both}
.res .kicker{margin-top:0;font-size:12.5px;letter-spacing:.36em;text-indent:.36em}
.res-no .kicker{color:var(--fg3)}
.res h2{margin-top:18px;font:400 clamp(30px,7.4vw,42px)/1.25 var(--serif);letter-spacing:.2em;text-indent:.2em}
.res-no h2{font-size:clamp(24px,6vw,30px);letter-spacing:.12em;text-indent:.12em}
.res .rule{position:relative;width:96px;height:1px;margin-top:24px;background:linear-gradient(90deg,transparent,var(--gold-line) 30%,var(--gold-line) 70%,transparent)}
.res .rule::after{content:"";position:absolute;left:50%;top:50%;width:5px;height:5px;margin:-3px 0 0 -3px;background:var(--paper);border:1px solid var(--gold);transform:rotate(45deg)}
.lead{margin:20px auto 0;max-width:30em;color:var(--fg2);font-size:15px;letter-spacing:.06em}

.serial{margin:34px 0 0;padding:22px 0 20px;border-top:1px solid var(--hair)}
.label,.fact dt{display:block;font:400 14px/1.4 var(--sans);letter-spacing:.28em;text-indent:.28em;color:var(--gold)}
.serial-no{display:block;margin-top:12px;font:500 clamp(18px,5.2vw,27px)/1.3 var(--num);letter-spacing:.12em;text-indent:.12em;word-break:break-all;color:var(--fg)}
.copy{margin-top:4px;display:inline-flex;align-items:center;min-height:44px;padding:0 14px;font-size:15px;letter-spacing:.3em;text-indent:.3em;color:var(--fg2);border-bottom:1px solid transparent;transition:color .2s,border-color .2s,transform .45s var(--spring,var(--ease))}
@media (hover:hover){.copy:hover{color:var(--gold);border-color:var(--gold-faint)}}
.copy:active{transform:scale(.94)}
.copy.done{color:var(--gold);animation:sq-bounce .5s var(--ease)}

.facts{display:grid;grid-template-columns:1fr 1fr;margin:0;padding:0}
.fact{padding:22px 12px;min-width:0;border-top:1px solid var(--hair)}
.fact.wide,.facts.odd .fact:last-child{grid-column:1/-1}
.fact dd{margin:8px 0 0;font-size:15px;letter-spacing:.04em;overflow-wrap:anywhere}
.fact.wide dd{font:400 19px/1.5 var(--serif);letter-spacing:.1em}
.fact dd.num{font:500 18px/1.3 var(--num);letter-spacing:.05em;white-space:nowrap}

.block{margin-top:6px;padding:26px 8px;border-top:1px solid var(--hair);text-align:left}
.block h3{font:400 15px/1.4 var(--serif);letter-spacing:.3em;margin-bottom:14px;color:var(--gold)}
.cover{display:block;width:100%;max-height:340px;object-fit:contain;background:var(--paper2);margin-bottom:14px}
.rich{font-size:15px;color:var(--fg2);overflow-wrap:anywhere}
.rich img{max-width:100%;height:auto}
.rich p{margin:0 0 .6em}
.event{display:block;margin-top:6px}
.event img{width:100%;margin:14px 0;display:block}
.timeline{list-style:none;margin:0;padding:0 0 0 6px}
.timeline li{position:relative;padding:0 0 16px 22px}
.timeline li::before{content:"";position:absolute;left:-3px;top:9px;width:6px;height:6px;border:1px solid var(--gold);transform:rotate(45deg);background:var(--paper)}
.timeline li::after{content:"";position:absolute;left:0;top:20px;bottom:0;width:1px;background:var(--hair)}
.timeline li:last-child::after{display:none}
.t-title{font-weight:500}
.t-item{margin-top:6px;padding:10px 12px;background:var(--paper2);font-size:15px;color:var(--fg2)}
.t-item p{margin-top:2px}

.foot{margin-top:auto;padding-top:48px;text-align:center;font-size:14px;letter-spacing:.1em}
.foot a{display:inline-block;padding:13px 10px;color:var(--fg2);text-decoration:none}
@media (hover:hover){.foot a:hover{color:var(--gold)}}

/* 逐字出现 */
.ch{display:inline-block;white-space:pre;animation:sq-ch .5s var(--ease) both}

/* 扫码 */
.scanner{position:fixed;inset:0;z-index:50;background:#000;display:grid;place-items:center;animation:sq-fade .25s ease both}
.scanner video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.scan-frame{position:relative;width:min(68vw,300px);aspect-ratio:1;box-shadow:0 0 0 100vmax rgba(0,0,0,.6);overflow:hidden}
.scan-frame::before{content:"";position:absolute;inset:0;box-shadow:inset 0 0 0 1px rgba(255,255,255,.8)}
.scan-frame i{position:absolute;left:8%;right:8%;height:1px;background:linear-gradient(90deg,transparent,#E2CFA3,transparent);animation:sq-scan 2s ease-in-out infinite alternate}
.scan-tip{position:absolute;left:0;right:0;bottom:calc(120px + env(safe-area-inset-bottom));text-align:center;color:#fff;font-size:15px;letter-spacing:.1em;text-shadow:0 1px 8px rgba(0,0,0,.6)}
.scan-close{position:absolute;left:50%;bottom:calc(40px + env(safe-area-inset-bottom));transform:translateX(-50%);height:44px;padding:0 30px;background:rgba(255,255,255,.14);color:#fff;font-size:15px;letter-spacing:.3em;text-indent:.3em;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}

@keyframes sq-pop{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
@keyframes sq-ch{from{opacity:0;filter:blur(8px)}to{opacity:1;filter:blur(0)}}
@keyframes sq-draw{to{stroke-dashoffset:0}}
@keyframes sq-shake{0%,100%{transform:none}20%{transform:translateX(-8px)}45%{transform:translateX(7px)}70%{transform:translateX(-4px)}}
@keyframes sq-bounce{0%{transform:scale(.9)}60%{transform:scale(1.06)}100%{transform:scale(1)}}
@keyframes sq-rot{to{transform:rotate(360deg)}}
@keyframes sq-spin{to{transform:rotate(360deg)}}
@keyframes sq-fade{from{opacity:0}to{opacity:1}}
@keyframes sq-scan{from{top:8%}to{top:90%}}
@keyframes sq-rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.brand>*{animation:sq-rise 1s var(--ease) both}
.brand>.kicker{animation-delay:.08s}.brand>h1{animation-delay:.16s}.brand>.rule{animation-delay:.24s}.brand>.sub{animation-delay:.32s}
.search{animation:sq-rise 1s .4s var(--ease) both}
.has-result .brand>*,.has-result .search{animation:none}

@media (max-width:520px){
    .bg::before{top:calc(max(12vh,52px) + 112px);width:128vw;margin-left:-64vw;margin-top:-64vw}
    .page.has-result~.bg::before{top:calc(max(7vh,36px) + 60px)}
    .page{padding:calc(max(9vh,44px) + env(safe-area-inset-top)) max(22px,env(safe-area-inset-left)) calc(24px + env(safe-area-inset-bottom)) max(22px,env(safe-area-inset-right))}
    .page.has-result{padding-top:calc(max(4vh,22px) + env(safe-area-inset-top))}
    .brand{margin-bottom:38px}
    .field{flex-wrap:wrap;height:auto;border-bottom:0;gap:0}
    .field::before{content:"";position:absolute;left:0;right:0;top:63px;height:1px;background:var(--hair)}
    .field::after{top:63px;bottom:auto}
    .field input{height:64px}
    .icon-btn{height:64px}
    .go{flex:0 0 100%;order:3;height:54px;margin:16px 0 0;font-size:17px}
    .search{margin-top:clamp(0px,8vh,72px)}
    .page.has-result .search{margin-top:0}
    .field input{letter-spacing:.06em}
    .res{padding:44px 22px 10px}
    .res::before{inset:8px}.res::after{inset:12px}
    .fact{padding:20px 4px}
    .fact dd.num{font-size:16px;letter-spacing:.02em}
    .seal{width:84px;height:84px}
}
@media (prefers-reduced-motion:reduce){
    *,*::before,*::after{animation-duration:.01ms!important;animation-delay:0s!important;transition-duration:.01ms!important}
    .bg::before{animation:none}
}
@media (prefers-reduced-transparency:reduce){.scan-close{-webkit-backdrop-filter:none;backdrop-filter:none;background:#333}}

/* ===== 产品页（证书下方）===== */
.sq-rise{animation:sq-rise 1s .3s var(--ease) both}
.prod{position:relative;margin-top:22px;background:var(--paper);padding:56px 44px 30px;text-align:left;box-shadow:var(--shadow)}
.prod::before{content:"";position:absolute;inset:10px;border:1px solid var(--gold-faint);pointer-events:none}
.prod>*{position:relative}
.prod-head{text-align:center}
.has-result .prod-head .kicker,.prod-head .kicker{display:block;font-size:12px;letter-spacing:.36em;text-indent:.36em;margin:0}
.prod-name{margin:16px 0 0;font:400 clamp(24px,6.2vw,32px)/1.4 var(--serif);letter-spacing:.14em;text-indent:.14em;overflow-wrap:anywhere}
.prod-head .rule{display:block;position:relative;width:96px;height:1px;margin:22px auto 0;background:linear-gradient(90deg,transparent,var(--gold-line) 30%,var(--gold-line) 70%,transparent)}
.prod-head .rule::after{content:"";position:absolute;left:50%;top:50%;width:5px;height:5px;margin:-3px 0 0 -3px;background:var(--paper);border:1px solid var(--gold);transform:rotate(45deg)}
.gallery{margin:34px -6px 0}
.gallery .shot{margin:0;background:#F7F3E8;padding:clamp(14px,4vw,28px);box-shadow:inset 0 0 0 1px var(--gold-faint)}
.gallery .shot img{display:block;width:100%;height:auto;max-height:440px;object-fit:contain;mix-blend-mode:multiply}
.gallery.multi{display:flex;gap:10px;overflow-x:auto;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;overscroll-behavior-x:contain;touch-action:pan-x pan-y;scrollbar-width:none}
.gallery.multi::-webkit-scrollbar{display:none}
.gallery.multi .shot{flex:0 0 100%;scroll-snap-align:center;scroll-snap-stop:always}
.gallery-hint{margin:6px 0 0;text-align:center;font-size:13px;letter-spacing:.2em;color:var(--fg2)}
.dots{display:flex;justify-content:center;gap:4px;margin-top:8px}
.dots i{width:24px;height:24px;display:grid;place-items:center}
.dots i::before{content:"";width:6px;height:6px;border:1px solid var(--gold);transform:rotate(45deg);transition:background .25s,transform .35s var(--ease)}
.dots i.on::before{background:var(--gold);transform:rotate(45deg) scale(1.25)}
.sec{margin-top:40px}
.sec-title{display:flex;align-items:baseline;gap:14px;margin:0 0 6px;padding-bottom:14px;border-bottom:1px solid var(--gold-line);font:400 18px/1.3 var(--serif);letter-spacing:.2em}
.sec-title em{margin-left:auto;font:600 11px/1 var(--display);font-style:normal;letter-spacing:.34em;color:var(--gold);white-space:nowrap}
.spec{margin:0}
.spec>div{display:grid;grid-template-columns:7.2em 1fr;gap:16px;padding:15px 0;border-bottom:1px solid var(--hair)}
.spec dt{margin:0;font-size:15px;letter-spacing:.2em;color:var(--fg3);padding-top:2px}
.spec dd{margin:0;font-size:15.5px;color:var(--fg);overflow-wrap:anywhere}
.spec dd.tnum{font-family:var(--num);letter-spacing:.04em}
.notes{list-style:none;margin:6px 0 0;padding:0;counter-reset:n}
.notes li{position:relative;counter-increment:n;padding:14px 0 14px 2.6em;border-bottom:1px solid var(--hair);font-size:15px;color:var(--fg2);line-height:1.85;overflow-wrap:anywhere}
.notes li::before{content:counter(n,decimal-leading-zero);position:absolute;left:0;top:15px;font:500 13px/1.85 var(--num);letter-spacing:.1em;color:var(--gold)}
.notes-p{margin-top:6px}
.notes-p p{margin:0;padding:14px 0;border-bottom:1px solid var(--hair);font-size:15px;color:var(--fg2);line-height:1.85}
.prod .rich{margin-top:12px}
.prod .timeline{margin-top:18px}
.prod-end{margin-top:40px;text-align:center}
.prod-end i{display:inline-block;width:6px;height:6px;border:1px solid var(--gold);transform:rotate(45deg)}
@media (max-width:520px){
  .prod{padding:48px 22px 24px}
  .prod::before{inset:8px}
  .gallery{margin-left:-2px;margin-right:-2px}
  .spec>div{grid-template-columns:6.4em 1fr;gap:12px}
  .sec-title{font-size:17px;gap:10px}
  .sec-title em{font-size:11px;letter-spacing:.2em}
}