/* =========================================================
   立春食品 · 企业官网 v1
   主题：以冷存鲜 —— 暖色的果与咖啡 × 冷色的冻干工艺
   ========================================================= */

:root{
  --paper:#F5EFE4; --paper-2:#EDE4D4; --paper-3:#E2D5BF; --card:#FBF8F2;
  --ink:#1D1712; --ink-2:#51463C; --ink-3:#8C7F72;
  --line:rgba(29,23,18,.14); --line-2:rgba(29,23,18,.3);
  --persimmon:#E2622A; --persimmon-2:#BF4716; --persimmon-soft:#F6CDA6;
  --coffee:#22150E; --coffee-2:#2F1F17; --coffee-3:#47322A; --crema:#D9B38A;
  --frost:#E2EBEB; --frost-2:#C9DADC; --frost-ink:#355E6B;
  --serif:"Noto Serif SC","Songti SC","STSong","SimSun",serif;
  --sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --latin:"Bodoni Moda","Didot","Bodoni 72",serif;
  --mono:"IBM Plex Mono",ui-monospace,"SFMono-Regular",Menlo,monospace;
  --wrap:1280px; --gutter:clamp(16px,4vw,48px);
  --ease:cubic-bezier(.2,.7,.2,1);
  --header-h:76px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 12px);-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--sans);font-size:16px;line-height:1.85;font-weight:400;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:clip;
}
/* 纸张颗粒 */
body::after{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:100;opacity:.07;mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,p,dl,dd,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--persimmon);outline-offset:3px;border-radius:4px}
::selection{background:var(--persimmon);color:var(--paper)}

.sprite{position:absolute;width:0;height:0;overflow:hidden}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.wrap{max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gutter)}
.mono{font-family:var(--mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase}
.num{font-family:var(--latin);font-weight:500;font-variant-numeric:lining-nums}

/* ---------- 印章 ---------- */
.seal{
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;flex:none;
  width:46px;height:46px;border-radius:5px;background:var(--persimmon);color:var(--paper);
  font-family:var(--serif);font-weight:900;font-size:16px;line-height:1.05;
  box-shadow:inset 0 0 0 3px var(--persimmon),inset 0 0 0 4.5px rgba(255,240,225,.7);
  transform:rotate(-4deg);
}
.seal-sm{width:40px;height:40px;font-size:14px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.6em;
  padding:.85em 1.6em;border-radius:999px;border:1px solid transparent;cursor:pointer;
  font-size:.95rem;font-weight:500;letter-spacing:.06em;line-height:1.4;white-space:nowrap;
  transition:background .3s var(--ease),color .3s var(--ease),border-color .3s var(--ease),transform .3s var(--ease);
}
.btn span{transition:transform .3s var(--ease)}
.btn:hover span{transform:translateX(4px)}
.btn-ink{background:var(--ink);color:var(--paper)}
.btn-ink:hover{background:var(--persimmon)}
.btn-line{border-color:var(--line-2)}
.btn-line:hover{border-color:var(--ink);background:var(--ink);color:var(--paper)}
.btn-persimmon{background:var(--persimmon);color:#fff}
.btn-persimmon:hover{background:var(--persimmon-2)}
.btn-block{width:100%}

/* =========================================================
   顶栏 / 导航
   ========================================================= */
.topbar{background:var(--ink);color:rgba(245,239,228,.75);font-size:.8rem}
.topbar-in{display:flex;justify-content:space-between;align-items:center;height:34px;gap:16px}
.topbar .mono{font-size:.66rem}
.topbar a{color:var(--paper);font-family:var(--latin);font-size:.92rem;letter-spacing:.04em}
.topbar a:hover{color:var(--persimmon-soft)}

.site-header{
  position:sticky;top:0;z-index:50;height:var(--header-h);
  transition:background .35s var(--ease),box-shadow .35s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(245,239,228,.88);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:0 1px 0 var(--line);
}
.header-in{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:12px}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text b{font-family:var(--serif);font-weight:900;font-size:1.22rem;letter-spacing:.14em}
.brand-text small{font-family:var(--mono);font-size:.56rem;letter-spacing:.16em;color:var(--ink-3);margin-top:3px}

.nav{display:flex;align-items:center;gap:clamp(14px,2vw,30px);font-size:.92rem;letter-spacing:.06em}
.nav a{position:relative;padding:6px 0}
.nav a:not(.nav-cta)::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1.5px;background:var(--persimmon);
  transform:scaleX(0);transform-origin:right;transition:transform .35s var(--ease);
}
.nav a:not(.nav-cta):hover::after{transform:scaleX(1);transform-origin:left}
.nav-cta{padding:.55em 1.25em!important;border-radius:999px;background:var(--persimmon);color:#fff;font-weight:500}
.nav-cta:hover{background:var(--ink)}
.nav-toggle{display:none;width:44px;height:44px;border:0;background:none;cursor:pointer;position:relative}
.nav-toggle span{position:absolute;left:11px;right:11px;height:1.5px;background:var(--ink);transition:transform .35s var(--ease),top .35s var(--ease)}
.nav-toggle span:first-child{top:17px}
.nav-toggle span:last-child{top:26px}
.nav-open .nav-toggle span:first-child{top:21.5px;transform:rotate(45deg)}
.nav-open .nav-toggle span:last-child{top:21.5px;transform:rotate(-45deg)}

/* =========================================================
   HERO
   ========================================================= */
.hero{position:relative;overflow:hidden;padding-top:clamp(8px,2vw,24px)}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(48% 52% at 28% 50%,rgba(246,180,120,.38),transparent 70%),
    radial-gradient(36% 40% at 92% 8%,rgba(201,218,220,.55),transparent 70%);
}
.hero-grid{
  position:relative;display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,1fr);
  align-items:center;gap:clamp(16px,3vw,48px);min-height:min(800px,calc(100svh - 150px));
  padding-bottom:clamp(24px,4vw,56px);
}

.hero-art{position:relative;aspect-ratio:1;width:100%;max-width:660px;justify-self:center;animation:artIn 1.4s var(--ease) both}
.hero-slice{position:absolute;inset:7%;filter:drop-shadow(0 34px 44px rgba(160,64,20,.28));animation:spin 160s linear infinite}
.hero-apple{position:absolute;width:31%;right:-1%;top:3%;filter:drop-shadow(0 18px 24px rgba(120,60,30,.22));animation:bob 9s ease-in-out infinite}
.hero-beans{position:absolute;width:24%;left:0;bottom:3%;animation:bob 11s ease-in-out -4s infinite}
.orbit{position:absolute;border-radius:50%;border:1px dashed rgba(29,23,18,.18);pointer-events:none}
.orbit-a{inset:1%}
.orbit-b{inset:-9%;border-style:solid;border-color:rgba(53,94,107,.14)}
.fig{position:absolute;left:4%;bottom:-2%;color:var(--ink-3);font-size:.62rem}
.frost-field{position:absolute;inset:-6%;pointer-events:none}
.crystal{position:absolute;color:var(--frost-ink);opacity:0;animation:drift var(--t,14s) ease-in-out var(--d,0s) infinite}

.hero-copy{display:flex;flex-direction:row-reverse;align-items:flex-start;justify-content:flex-end;gap:clamp(24px,3.4vw,52px)}
.hero-title{
  writing-mode:vertical-rl;font-family:var(--serif);font-weight:900;
  font-size:clamp(3.2rem,5.6vw,5.6rem);line-height:1.14;letter-spacing:.07em;color:var(--ink);
}
.hero-title span{display:block;animation:inkDown 1.2s var(--ease) both}
.hero-title span:nth-child(1){animation-delay:.2s}
.hero-title span:nth-child(2){animation-delay:.45s;margin-top:1.1em}
.hero-title em{font-style:normal;color:var(--persimmon);position:relative}
.hero-side{max-width:290px;padding-top:clamp(40px,9vw,140px);animation:fadeUp 1s var(--ease) .75s both}
.eyebrow{display:flex;align-items:center;gap:10px;font-size:.82rem;letter-spacing:.12em;color:var(--ink-2);margin-bottom:22px}
.eyebrow .dash{width:28px;height:1.5px;background:var(--persimmon);flex:none}
.hero-lead{font-size:1rem;line-height:2;color:var(--ink-2);margin-bottom:30px}
.hero-ctas{display:flex;flex-direction:column;align-items:flex-start;gap:12px}
.hero-meta{margin-top:30px;color:var(--ink-3);font-size:.62rem}

/* 跑马灯 */
.ticker{position:relative;border-block:1px solid var(--line);overflow:hidden;padding:16px 0;background:rgba(251,248,242,.5)}
.ticker-track{display:flex;align-items:center;gap:28px;width:max-content;animation:marquee 46s linear infinite;font-family:var(--serif);font-size:1.15rem;font-weight:500;letter-spacing:.12em;white-space:nowrap}
.ticker i{font-style:normal;color:var(--persimmon);font-size:.8rem}

/* =========================================================
   关键数字
   ========================================================= */
.facts{border-bottom:1px solid var(--line)}
.facts-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.fact{padding:clamp(28px,4vw,48px) clamp(12px,2vw,28px);display:flex;flex-direction:column;gap:10px;border-left:1px solid var(--line)}
.fact:first-child{border-left:0;padding-left:0}
.fact .num{font-size:clamp(2.4rem,4.4vw,3.8rem);line-height:1;letter-spacing:-.01em}
.fact .num .minus{font-size:inherit;line-height:1;display:inline-block;width:.36em;height:.06em;background:var(--ink);vertical-align:.32em;margin-right:.08em;overflow:hidden;color:transparent}
.fact .num small{font-size:.45em;margin-left:2px;font-style:italic}
.fact span{font-size:.9rem;color:var(--ink-2);line-height:1.7}

/* =========================================================
   通用：分节
   ========================================================= */
.sec{padding-block:clamp(80px,11vw,150px)}
.sec-head{display:grid;grid-template-columns:auto 1fr;gap:clamp(20px,3vw,40px);align-items:start;margin-bottom:clamp(44px,6vw,80px)}
.sec-mark{display:flex;flex-direction:column;align-items:center;gap:14px;padding-top:.3em}
.sec-no{font-family:var(--serif);font-weight:900;font-size:clamp(2.2rem,3.6vw,3.1rem);line-height:1;color:var(--persimmon)}
.sec-en{writing-mode:vertical-rl;font-family:var(--latin);font-style:italic;font-size:.95rem;color:var(--ink-3);letter-spacing:.06em;white-space:nowrap}
.sec-title{font-family:var(--serif);font-weight:700;font-size:clamp(2rem,4.4vw,3.7rem);line-height:1.3;letter-spacing:.03em}
.lead{font-family:var(--serif);font-weight:500;font-size:clamp(1.15rem,1.7vw,1.4rem);line-height:1.8;color:var(--ink);margin-bottom:22px}

/* =========================================================
   壹 关于
   ========================================================= */
.about-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:clamp(32px,6vw,96px);align-items:start}
.about-copy p:not(.lead){color:var(--ink-2);margin-bottom:18px}
.signoff{display:flex;align-items:center;gap:16px;margin-top:34px;padding-top:26px;border-top:1px solid var(--line);font-family:var(--serif);font-size:1.02rem;line-height:1.7}

.photo{
  position:relative;overflow:hidden;border-radius:4px;
  background:linear-gradient(160deg,#F0D7B8 0%,#E9B887 55%,#D98A52 100%);
  background-size:cover;background-position:center;
}
.photo-tall{aspect-ratio:4/5}
.photo-ph{position:absolute;inset:14px;border:1px dashed rgba(29,23,18,.28);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;text-align:center;padding:20px}
.photo-ph svg{width:44%;opacity:.85;filter:drop-shadow(0 20px 26px rgba(150,60,20,.25))}
.photo-ph span{font-size:.85rem;color:var(--ink-2);margin-top:10px}
.photo-ph code{font-family:var(--mono);font-size:.68rem;color:var(--ink-3)}
.photo.has-img .photo-ph{display:none}
.photo figcaption{position:absolute;left:14px;bottom:12px;background:var(--paper);padding:3px 10px;font-size:.62rem;border-radius:2px}

.pillars{display:grid;grid-template-columns:repeat(4,1fr);margin-top:clamp(56px,8vw,100px);border-top:1px solid var(--ink)}
.pillars li{padding:26px clamp(12px,2vw,28px) 0 0}
.pillars li + li{padding-left:clamp(12px,2vw,28px);border-left:1px solid var(--line)}
.pillar-no{font-family:var(--latin);font-style:italic;font-size:.95rem;color:var(--persimmon)}
.pillars h3{font-family:var(--serif);font-size:1.25rem;font-weight:700;margin:6px 0 8px;letter-spacing:.06em}
.pillars p{font-size:.9rem;color:var(--ink-2);line-height:1.75}

/* =========================================================
   贰 产品
   ========================================================= */
.products{padding-bottom:clamp(64px,8vw,110px)}
.line-head{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:clamp(24px,6vw,96px);align-items:end;margin-bottom:clamp(28px,4vw,48px);padding-bottom:clamp(24px,3vw,36px);border-bottom:1px solid var(--line)}
.line-name{display:flex;align-items:baseline;flex-wrap:wrap;gap:6px 18px}
.line-cn{font-family:var(--serif);font-weight:900;font-size:clamp(3rem,7vw,6rem);line-height:1;letter-spacing:.06em}
.line-en{font-family:var(--latin);font-style:italic;font-size:clamp(1.1rem,1.8vw,1.5rem);color:var(--ink-3)}
.line-desc p{color:var(--ink-2);margin-top:14px}
.chip{display:inline-block;font-family:var(--mono);font-size:.66rem;letter-spacing:.12em;padding:5px 12px;border-radius:999px;background:var(--persimmon);color:#fff}

.cards{display:grid;gap:clamp(14px,1.6vw,22px)}
.cards-4{grid-template-columns:repeat(4,1fr)}
.cards-3{grid-template-columns:repeat(3,1fr)}
.card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:18px;overflow:hidden;transition:transform .45s var(--ease),box-shadow .45s var(--ease)}
.card:hover{transform:translateY(-6px);box-shadow:0 24px 50px -24px rgba(90,40,10,.35)}
.card-art{aspect-ratio:5/4;display:grid;place-items:center;position:relative}
.card-art svg{width:62%;transition:transform .8s var(--ease)}
.card:hover .card-art svg{transform:rotate(14deg) scale(1.05)}
.art-persimmon{background:radial-gradient(60% 60% at 50% 55%,#FBD9B6,#F4C291)}
.art-apple{background:radial-gradient(60% 60% at 50% 55%,#F7EAD2,#EED9B6)}
.art-mango{background:radial-gradient(60% 60% at 50% 55%,#FCEBB8,#F6D987)}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1}
.card-tag{font-family:var(--mono);font-size:.64rem;letter-spacing:.1em;color:var(--persimmon-2)}
.card h3{font-family:var(--serif);font-weight:700;font-size:1.4rem;letter-spacing:.06em;margin:4px 0 6px}
.card p{font-size:.9rem;color:var(--ink-2);line-height:1.75}
.specs{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto;padding-top:16px}
.specs li{font-size:.72rem;padding:2px 10px;border:1px solid var(--line-2);border-radius:999px;color:var(--ink-2)}

.card-more{border-style:dashed;border-color:var(--line-2);background:transparent;padding:28px 24px;justify-content:center;align-items:flex-start;gap:6px}
.more-plus{position:relative;width:52px;height:52px;border-radius:50%;border:1.5px solid var(--persimmon);margin-bottom:18px;transition:transform .5s var(--ease),background .3s var(--ease)}
.more-plus::before,.more-plus::after{content:"";position:absolute;left:50%;top:50%;width:20px;height:2px;margin:-1px 0 0 -10px;background:var(--persimmon)}
.more-plus::after{transform:rotate(90deg)}
.card-more:hover .more-plus{transform:rotate(90deg)}
.minus{font-family:var(--sans);font-weight:300;margin-right:.04em}
.more-link{margin-top:16px;font-size:.9rem;font-weight:500;color:var(--persimmon-2)}

/* 咖壹号：深色咖啡带 */
.coffee-band{
  position:relative;background:var(--coffee);color:var(--paper);padding-block:clamp(72px,10vw,130px);overflow:hidden;
}
.coffee-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(50% 60% at 85% 0%,rgba(217,179,138,.2),transparent 70%),radial-gradient(40% 50% at 0% 100%,rgba(226,98,42,.14),transparent 70%);
}
.coffee-band .wrap{position:relative}
.coffee-band .line-head{border-bottom-color:rgba(245,239,228,.14)}
.coffee-band .line-en{color:var(--crema)}
.coffee-band .line-desc p{color:rgba(245,239,228,.72)}
.chip-dark{background:var(--crema);color:var(--coffee)}
.card-dark{background:var(--coffee-2);border-color:rgba(245,239,228,.08)}
.card-dark:hover{box-shadow:0 28px 60px -24px rgba(0,0,0,.6)}
.art-coffee{background:radial-gradient(60% 60% at 50% 55%,#5A4034,#3A2820)}
.card-dark .card-tag{color:var(--crema)}
.card-dark p{color:rgba(245,239,228,.68)}
.card-dark .specs li{border-color:rgba(245,239,228,.2);color:rgba(245,239,228,.75)}
.coffee-note{display:flex;align-items:center;gap:12px;margin-top:clamp(32px,4vw,48px);font-size:.88rem;color:rgba(245,239,228,.65)}
.coffee-note .dot{width:8px;height:8px;border-radius:50%;background:var(--persimmon);box-shadow:0 0 0 5px rgba(226,98,42,.22);flex:none}

/* =========================================================
   叁 工艺（冷色区）
   ========================================================= */
.craft{
  position:relative;background:var(--frost);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='56' height='97' viewBox='0 0 56 97'%3E%3Cpath d='M28 0l28 16v32L28 64 0 48V16zM28 64v33M0 97V81M56 97V81' fill='none' stroke='%23355E6B' stroke-opacity='.07'/%3E%3C/svg%3E");
}
.craft .sec-no{color:var(--frost-ink)}
.craft-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:clamp(32px,6vw,96px);align-items:center}
.craft-copy p:not(.lead){color:var(--ink-2)}
.virtues{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:36px}
.virtues div{border-top:1px solid var(--frost-ink);padding-top:14px}
.virtues dt{font-family:var(--serif);font-weight:900;font-size:2.2rem;line-height:1.1;color:var(--frost-ink)}
.virtues dd{font-size:.8rem;color:var(--ink-2);line-height:1.6;margin-top:6px}

.chamber{background:rgba(255,255,255,.55);border:1px solid var(--frost-2);border-radius:24px;padding:clamp(14px,2vw,22px);box-shadow:0 30px 60px -36px rgba(53,94,107,.45)}
.chamber svg{width:100%;height:auto}
.ch-wall{fill:rgba(255,255,255,.65);stroke:var(--frost-ink);stroke-width:1.5}
.ch-label,.ch-small{font-family:var(--mono);font-size:11px;letter-spacing:.08em;fill:var(--frost-ink)}
.ch-small{font-family:var(--sans);font-size:12px;letter-spacing:.06em}
.ch-read{font-family:var(--latin);font-size:22px;font-weight:600;fill:var(--frost-ink)}
.ch-coil{fill:none;stroke:var(--frost-ink);stroke-width:2;stroke-linejoin:round}
.ch-shelf{stroke:var(--ink);stroke-width:2}
.vapor circle{fill:var(--frost-ink);opacity:0;transform-box:fill-box;animation:rise 3.6s ease-in var(--d,0s) infinite}
.ice use{color:var(--frost-ink);animation:twinkle 3.2s ease-in-out infinite}
.ice use:nth-child(2){animation-delay:1.1s}
.ice use:nth-child(3){animation-delay:2.2s}
.chamber figcaption{font-size:.8rem;color:var(--ink-2);margin-top:12px;text-align:center}

.process{margin-top:clamp(56px,8vw,96px)}
.tabs{display:inline-flex;gap:4px;padding:4px;border-radius:999px;background:rgba(255,255,255,.6);border:1px solid var(--frost-2);margin-bottom:clamp(32px,4vw,48px)}
.tab{border:0;background:none;padding:.6em 1.3em;border-radius:999px;cursor:pointer;font-size:.9rem;letter-spacing:.04em;color:var(--ink-2);transition:background .3s var(--ease),color .3s var(--ease)}
.tab[aria-selected="true"]{background:var(--frost-ink);color:#fff}
.steps{display:grid;grid-template-columns:repeat(6,1fr);position:relative}
.steps::before{content:"";position:absolute;left:27px;right:8%;top:27px;height:1px;background:var(--frost-ink);opacity:.35}
.steps[hidden]{display:none}
.step{position:relative;padding-right:18px;animation:fadeUp .6s var(--ease) both}
.step:nth-child(2){animation-delay:.05s}.step:nth-child(3){animation-delay:.1s}.step:nth-child(4){animation-delay:.15s}.step:nth-child(5){animation-delay:.2s}.step:nth-child(6){animation-delay:.25s}
.step-no{position:relative;z-index:1;width:54px;height:54px;border-radius:50%;display:grid;place-items:center;background:var(--frost);border:1px solid var(--frost-ink);font-family:var(--latin);font-size:1.05rem;color:var(--frost-ink)}
.step h4{font-family:var(--serif);font-weight:700;font-size:1.12rem;letter-spacing:.06em;margin:18px 0 4px}
.step p{font-size:.85rem;color:var(--ink-2);line-height:1.7}
.step.is-key .step-no{background:var(--frost-ink);color:#fff;box-shadow:0 0 0 6px rgba(53,94,107,.14)}
.key-tag{display:inline-block;margin-top:10px;font-family:var(--mono);font-size:.6rem;letter-spacing:.1em;padding:2px 8px;border-radius:999px;background:var(--frost-ink);color:#fff}

/* =========================================================
   肆 产地
   ========================================================= */
.origin{background:var(--paper-2)}
.origin-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:clamp(32px,6vw,96px);align-items:center}
.map{background:var(--card);border:1px solid var(--line);border-radius:4px;padding:clamp(8px,1.4vw,16px)}
.map svg{width:100%;height:auto}
.topo path{fill:none;stroke:var(--ink);stroke-opacity:.13;stroke-width:1}
.topo path.major{stroke-opacity:.3}
.river{fill:none;stroke:#6E9AA6;stroke-width:5;stroke-linecap:round;opacity:.75}
.map-river{font-family:var(--serif);font-size:15px;fill:#4C7B88;writing-mode:vertical-rl;letter-spacing:.3em}
.map-pin circle,.map-pin rect{fill:var(--ink)}
.map-pin text,.home-t,.home-s,.map-river{paint-order:stroke;stroke:var(--card);stroke-width:5px;stroke-linejoin:round}
.map-pin text{font-family:var(--sans);font-size:13px;fill:var(--ink-2);letter-spacing:.06em}
.map-road{fill:none;stroke:var(--ink);stroke-width:1.2;stroke-dasharray:4 5;opacity:.45}
.map-home .core{fill:var(--persimmon);stroke:#fff;stroke-width:3}
.map-home .pulse{fill:var(--persimmon);opacity:.3;transform-box:fill-box;transform-origin:center;animation:pulse 2.4s ease-out infinite}
.map-home .leader{fill:none;stroke:var(--ink);stroke-width:1}
.home-t{font-family:var(--serif);font-weight:900;font-size:17px;fill:var(--ink);letter-spacing:.06em}
.home-s{font-family:var(--mono);font-size:11px;fill:var(--ink-3);letter-spacing:.08em}
.map-n path{fill:var(--ink)}
.map-n text{font-family:var(--latin);font-size:13px;fill:var(--ink)}
.map-note{font-family:var(--mono);font-size:10px;fill:var(--ink-3);letter-spacing:.1em}
.origin-copy p:not(.lead){color:var(--ink-2)}
.stats{margin-top:34px;border-top:1px solid var(--ink)}
.stats li{display:flex;align-items:baseline;justify-content:space-between;gap:16px;padding:18px 0;border-bottom:1px solid var(--line)}
.stats b{font-family:var(--serif);font-weight:900;font-size:1.4rem;letter-spacing:.06em;white-space:nowrap}
.stats b.num{font-family:var(--latin);font-weight:500;font-size:2.4rem;line-height:1;letter-spacing:0}
.stats b small{font-size:.6em}
.stats span{font-size:.88rem;color:var(--ink-2);text-align:right}

/* =========================================================
   伍 品质 & 追溯
   ========================================================= */
.quality-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:clamp(28px,5vw,72px);align-items:start}
.creds{display:flex;flex-direction:column;gap:14px}
.cred{position:relative;overflow:hidden;display:flex;flex-direction:column;gap:6px;padding:24px 26px;background:var(--card);border:1px solid var(--line);border-radius:14px}
.cred-k{color:var(--ink-3);font-size:.64rem}
.cred-v{font-size:clamp(1.15rem,2vw,1.5rem);letter-spacing:.06em;color:var(--ink);text-transform:none;font-weight:500}
.cred-d{font-size:.86rem;color:var(--ink-2)}
.cred-stamp{position:absolute;right:20px;top:50%;width:66px;height:66px;margin-top:-33px;border-radius:50%;border:2px solid var(--persimmon);color:var(--persimmon);display:grid;place-items:center;font-family:var(--latin);font-weight:700;font-size:1.2rem;transform:rotate(-14deg);opacity:.8}
.cred-stamp::before{content:"";position:absolute;inset:4px;border-radius:50%;border:1px solid var(--persimmon)}
.cred-soon{background:transparent;border-style:dashed;border-color:var(--line-2)}
.cred-soon .cred-v{font-family:var(--serif);font-weight:700;color:var(--persimmon-2)}
.creds-note{font-size:.84rem;color:var(--ink-3);margin-top:6px}
.creds-note a{color:var(--persimmon-2);border-bottom:1px solid currentColor}

.trace{background:var(--ink);color:var(--paper);border-radius:22px;padding:clamp(24px,3vw,36px);position:relative;overflow:hidden}
.trace::before{content:"";position:absolute;width:320px;height:320px;right:-120px;top:-140px;border-radius:50%;background:radial-gradient(circle,rgba(226,98,42,.35),transparent 70%)}
.trace-head{position:relative}
.trace-head .mono{color:var(--persimmon-soft);font-size:.64rem}
.trace-head h3{font-family:var(--serif);font-weight:700;font-size:1.6rem;letter-spacing:.06em;margin-top:10px}
.trace-head p{color:rgba(245,239,228,.65);font-size:.9rem}
.trace-form{position:relative;display:flex;gap:8px;margin:22px 0 6px;padding:6px;border-radius:999px;background:rgba(245,239,228,.08);border:1px solid rgba(245,239,228,.16)}
.trace-form input{flex:1;min-width:0;background:none;border:0;outline:none;padding:0 16px;font-size:.9rem;color:var(--paper);letter-spacing:.08em}
.trace-form input::placeholder{color:rgba(245,239,228,.4);text-transform:none}
.trace-form .btn{padding:.6em 1.4em}
.trace-out{position:relative;min-height:40px}
.trace-meta{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:22px 0 18px;padding:14px 0;border-block:1px dashed rgba(245,239,228,.2)}
.trace-meta div{display:flex;flex-direction:column;gap:2px}
.trace-meta span{font-family:var(--mono);font-size:.6rem;letter-spacing:.1em;color:rgba(245,239,228,.5)}
.trace-meta b{font-weight:500;font-size:.9rem}
.trace-meta .ok{color:#9FD3A8}
.trace-tl{position:relative;padding-left:22px}
.trace-tl::before{content:"";position:absolute;left:5px;top:8px;bottom:8px;width:1px;background:rgba(245,239,228,.25)}
.trace-tl li{position:relative;padding:6px 0 10px;animation:fadeUp .5s var(--ease) both}
.trace-tl li::before{content:"";position:absolute;left:-21px;top:13px;width:9px;height:9px;border-radius:50%;background:var(--ink);border:1.5px solid var(--persimmon)}
.trace-tl li:last-child::before{background:var(--persimmon)}
.trace-tl time{font-family:var(--mono);font-size:.66rem;letter-spacing:.06em;color:var(--persimmon-soft)}
.trace-tl b{display:block;font-family:var(--serif);font-weight:700;font-size:1rem;letter-spacing:.04em;margin-top:1px}
.trace-tl small{display:block;font-size:.8rem;color:rgba(245,239,228,.6);line-height:1.6}
.trace-miss{margin-top:20px;font-size:.88rem;color:rgba(245,239,228,.7)}
.trace-miss button{background:none;border:0;padding:0;color:var(--persimmon-soft);cursor:pointer;border-bottom:1px solid currentColor;font-family:var(--mono);font-size:.82rem}
.trace-foot{position:relative;margin-top:18px;font-size:.58rem;color:rgba(245,239,228,.4)}

/* =========================================================
   陆 合作（柿子色）
   ========================================================= */
.partner{background:var(--persimmon);color:var(--ink);position:relative;overflow:hidden}
.partner::before{content:"";position:absolute;width:62vw;height:62vw;max-width:880px;max-height:880px;right:-18vw;top:-22vw;border-radius:50%;border:1px solid rgba(29,23,18,.18);box-shadow:0 0 0 70px rgba(255,255,255,.04),0 0 0 140px rgba(255,255,255,.03)}
.partner .wrap{position:relative}
.partner .sec-no{color:var(--paper)}
.partner .sec-en{color:rgba(29,23,18,.6)}
.partner-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(12px,1.4vw,20px)}
.pcard{background:var(--paper);border-radius:18px;padding:26px 24px 30px;min-height:240px;display:flex;flex-direction:column;transition:transform .45s var(--ease)}
.pcard:hover{transform:translateY(-6px) rotate(-.6deg)}
.pcard-no{font-family:var(--latin);font-style:italic;font-size:2.4rem;line-height:1;color:var(--persimmon)}
.pcard h3{font-family:var(--serif);font-weight:700;font-size:1.25rem;letter-spacing:.06em;margin:auto 0 8px;padding-top:36px}
.pcard p{font-size:.88rem;color:var(--ink-2);line-height:1.75}
.channels{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:clamp(28px,4vw,44px)}
.channels-k{font-size:.92rem;margin-right:6px}
.pill{display:inline-flex;align-items:center;gap:6px;padding:.45em 1.1em;border-radius:999px;font-size:.88rem;border:1px solid rgba(29,23,18,.35)}
a.pill{background:var(--ink);color:var(--paper);border-color:var(--ink);transition:background .3s var(--ease)}
a.pill:hover{background:var(--paper);color:var(--ink)}

/* =========================================================
   柒 联系
   ========================================================= */
.contact-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:clamp(32px,6vw,96px);align-items:start}
.contact-info .k{color:var(--ink-3)}
.big-phone{display:block;font-family:var(--latin);font-weight:500;font-size:clamp(2.4rem,5.4vw,4.4rem);line-height:1.1;letter-spacing:-.01em;margin:6px 0 30px;transition:color .3s var(--ease)}
.big-phone:hover{color:var(--persimmon)}
.info-list{border-top:1px solid var(--ink)}
.info-list div{display:grid;grid-template-columns:88px 1fr;gap:16px;padding:16px 0;border-bottom:1px solid var(--line)}
.info-list dt{font-size:.82rem;color:var(--ink-3)}
.info-list dd{font-size:.95rem}
.info-list a{border-bottom:1px solid var(--line-2)}
.info-list a:hover{color:var(--persimmon);border-color:var(--persimmon)}
.visit{margin-top:24px;font-family:var(--serif);font-size:1.05rem;color:var(--ink-2)}

.contact-form{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:clamp(22px,3vw,36px);position:relative}
.form-fields{display:grid;grid-template-columns:1fr 1fr;gap:16px 18px}
.field{display:flex;flex-direction:column;gap:6px}
.field-wide,.form-fields .btn,.form-err{grid-column:1/-1}
.field label{font-size:.82rem;color:var(--ink-2);letter-spacing:.04em}
.field label i{font-style:normal;color:var(--persimmon)}
.field input,.field select,.field textarea{
  width:100%;background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:.75em .95em;font-size:.95rem;outline:none;resize:vertical;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--ink-2) 50%),linear-gradient(135deg,var(--ink-2) 50%,transparent 50%);background-position:calc(100% - 18px) 55%,calc(100% - 13px) 55%;background-size:5px 5px;background-repeat:no-repeat}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--persimmon);box-shadow:0 0 0 4px rgba(226,98,42,.14)}
.field .is-bad{border-color:var(--persimmon-2);box-shadow:0 0 0 4px rgba(191,71,22,.12)}
.form-fields .btn{margin-top:6px;padding:1em 1.6em}
.form-err{font-size:.84rem;color:var(--persimmon-2);min-height:1.2em}
.form-done{display:none;text-align:center;padding:40px 10px}
.form-done .seal{width:64px;height:64px;font-size:22px;margin-bottom:18px}
.form-done h3{font-family:var(--serif);font-size:1.5rem;font-weight:700;margin-bottom:10px}
.form-done p{color:var(--ink-2);font-size:.92rem}
.form-done a{color:var(--persimmon-2);border-bottom:1px solid currentColor}
.contact-form.is-sent .form-fields{display:none}
.contact-form.is-sent .form-done{display:block;animation:fadeUp .6s var(--ease) both}

/* =========================================================
   页脚
   ========================================================= */
.site-footer{background:var(--ink);color:rgba(245,239,228,.72);padding-top:clamp(64px,8vw,100px);overflow:hidden}
.foot-top{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:32px}
.brand-light .brand-text b{color:var(--paper)}
.brand-light .brand-text small{color:rgba(245,239,228,.45)}
.foot-brand p{margin-top:18px;font-size:.88rem;line-height:1.9}
.foot-col{display:flex;flex-direction:column;gap:8px;font-size:.88rem}
.foot-col h4{font-family:var(--mono);font-size:.64rem;letter-spacing:.14em;color:rgba(245,239,228,.45);font-weight:400;margin-bottom:6px}
.foot-col a:hover{color:var(--persimmon-soft)}
.foot-mark{
  font-family:var(--serif);font-weight:900;font-size:clamp(4.6rem,19vw,17rem);line-height:1;letter-spacing:.08em;
  color:transparent;-webkit-text-stroke:1px rgba(245,239,228,.18);text-align:center;margin:clamp(40px,6vw,72px) 0 -0.12em;white-space:nowrap;user-select:none;
}
.foot-bottom{position:relative;display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px 24px;padding:22px 0 28px;border-top:1px solid rgba(245,239,228,.12);font-size:.76rem;color:rgba(245,239,228,.45);background:var(--ink)}

/* =========================================================
   动效
   ========================================================= */
html.js [data-reveal]{opacity:0;transform:translateY(28px);transition:opacity .9s var(--ease) var(--d,0s),transform .9s var(--ease) var(--d,0s)}
html.js [data-reveal].is-in{opacity:1;transform:none}

@keyframes spin{to{transform:rotate(360deg)}}
@keyframes bob{0%,100%{transform:translateY(0) rotate(0)}50%{transform:translateY(-14px) rotate(6deg)}}
@keyframes artIn{from{opacity:0;transform:scale(.9) rotate(-8deg)}to{opacity:1;transform:none}}
@keyframes inkDown{from{clip-path:inset(0 0 100% 0);opacity:.2}to{clip-path:inset(0 0 0 0);opacity:1}}
@keyframes fadeUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
@keyframes marquee{to{transform:translateX(-50%)}}
@keyframes drift{0%{opacity:0;transform:translateY(16px) rotate(0) scale(var(--s,1))}25%,70%{opacity:var(--o,.55)}100%{opacity:0;transform:translateY(-46px) rotate(60deg) scale(var(--s,1))}}
@keyframes rise{0%{opacity:0;transform:translateY(0)}15%{opacity:.85}100%{opacity:0;transform:translateY(-118px)}}
@keyframes twinkle{0%,100%{opacity:.9}50%{opacity:.15}}
@keyframes pulse{0%{transform:scale(1);opacity:.45}100%{transform:scale(3.4);opacity:0}}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  html.js [data-reveal]{opacity:1;transform:none}
}

/* =========================================================
   响应式
   ========================================================= */
@media screen and (max-width:1100px){
  .nav{gap:16px;font-size:.88rem}
  .cards-4{grid-template-columns:repeat(2,1fr)}
  .partner-grid{grid-template-columns:repeat(2,1fr)}
  .foot-top{grid-template-columns:1fr 1fr 1fr}
  .foot-brand{grid-column:1/-1}
}

@media screen and (max-width:980px){
  :root{--header-h:64px}
  .nav-toggle{display:block;z-index:2}
  .nav{
    position:fixed;inset:0;z-index:1;flex-direction:column;align-items:flex-start;justify-content:center;gap:4px;
    padding:80px var(--gutter) 40px;background:var(--paper);font-family:var(--serif);font-size:1.6rem;font-weight:700;
    opacity:0;visibility:hidden;transition:opacity .35s var(--ease),visibility .35s;
  }
  .nav a{padding:8px 0}
  .nav-cta{margin-top:18px;font-family:var(--sans);font-size:1rem}
  .nav-open .nav{opacity:1;visibility:visible}
  .nav-open .site-header{background:var(--paper)}
  .brand{position:relative;z-index:2}

  .hero-grid{grid-template-columns:1fr;min-height:0;padding-top:8px}
  .hero-art{max-width:520px;width:88%}
  .hero-copy{flex-direction:column;align-items:flex-start;gap:20px}
  .hero-title{writing-mode:horizontal-tb;font-size:clamp(2.4rem,9vw,3.6rem);line-height:1.3;letter-spacing:.04em}
  .hero-title span:nth-child(2){margin-top:0}
  .hero-title span{animation-name:fadeUp}
  .hero-side{max-width:560px;padding-top:0}
  .hero-ctas{flex-direction:row;flex-wrap:wrap}

  .facts-grid{grid-template-columns:repeat(2,1fr)}
  .fact:nth-child(3){border-left:0;padding-left:0}
  .fact:nth-child(n+3){border-top:1px solid var(--line)}

  .about-grid,.craft-grid,.origin-grid,.quality-grid,.contact-grid,.line-head{grid-template-columns:1fr}
  .photo-tall{aspect-ratio:4/3}
  .pillars{grid-template-columns:repeat(2,1fr)}
  .pillars li:nth-child(3){border-left:0;padding-left:0}
  .pillars li:nth-child(n+3){padding-top:22px;margin-top:22px;border-top:1px solid var(--line)}
  .cards-3{grid-template-columns:repeat(3,1fr)}

  .steps{grid-template-columns:repeat(3,1fr);row-gap:36px}
  .steps::before{display:none}
}

@media screen and (max-width:640px){
  .topbar .mono{display:none}
  .topbar-in{justify-content:flex-end}
  .brand-text small{display:none}
  .sec-head{grid-template-columns:1fr;gap:12px}
  .sec-mark{flex-direction:row;padding-top:0}
  .sec-en{writing-mode:horizontal-tb}
  .cards-4,.cards-3{grid-template-columns:1fr}
  .card{flex-direction:row}
  .card-art{aspect-ratio:auto;width:38%;flex:none}
  .card-art svg{width:78%}
  .card-body{padding:16px 16px 18px}
  .card h3{font-size:1.2rem}
  .card-more{flex-direction:column}
  .virtues{grid-template-columns:repeat(2,1fr);row-gap:22px}
  .steps{grid-template-columns:1fr;row-gap:0;padding-left:0}
  .steps::before{display:block;left:21px;right:auto;top:10px;bottom:10px;width:1px;height:auto}
  .step{display:grid;grid-template-columns:44px 1fr;column-gap:16px;padding:0 0 22px}
  .step-no{width:44px;height:44px;font-size:.9rem;grid-row:span 3}
  .step h4{margin:8px 0 2px}
  .key-tag{justify-self:start;margin-top:6px}
  .stats li{flex-direction:column;gap:4px}
  .stats span{text-align:left}
  .trace-meta{grid-template-columns:1fr 1fr}
  .partner-grid{grid-template-columns:1fr}
  .pcard{min-height:0}
  .pcard h3{padding-top:18px}
  .form-fields{grid-template-columns:1fr}
  .info-list div{grid-template-columns:72px 1fr}
  .foot-top{grid-template-columns:1fr 1fr}
  .foot-bottom{flex-direction:column}
}

/* =========================================================
   打印 / 导出 PDF
   ========================================================= */
@media print{
  @page{margin:0}
  html,body{-webkit-print-color-adjust:exact;print-color-adjust:exact}
  html{scroll-behavior:auto}
  body::after{display:none}
  *,*::before,*::after{animation:none!important;transition:none!important}
  html.js [data-reveal]{opacity:1!important;transform:none!important}
  .site-header{position:relative}
  .hero-title span{clip-path:none}
  .crystal{opacity:.45}
  .vapor circle{opacity:.6}
  .vapor circle:nth-child(3n){transform:translateY(-34px)}
  .vapor circle:nth-child(3n+1){transform:translateY(-78px)}
  .vapor circle:nth-child(3n+2){transform:translateY(-112px)}
}