/* =========================================================
   南通一次元科技有限公司 · 官网样式
   品牌色：深青 #0B4F63 / 亮青 #1B7C93 / 米白 #F7F1E6
   ========================================================= */

:root{
  --ink:#0B4F63;          /* 品牌主色 深青 */
  --ink-deep:#083B4B;     /* 深青加深 */
  --teal:#1B7C93;         /* 品牌辅色 亮青 */
  --teal-soft:#8FBFCB;    /* 亮青浅调 */
  --cream:#F7F1E6;        /* 品牌米白 */
  --cream-2:#EDE7DA;
  --paper:#FFFFFF;
  --text:#1B3A44;         /* 正文 */
  --text-mute:#5C7480;
  --line:rgba(11,79,99,.14);

  --radius:18px;
  --radius-lg:26px;
  --shadow-sm:0 2px 10px rgba(11,79,99,.06);
  --shadow:0 14px 40px rgba(11,79,99,.12);
  --shadow-lg:0 24px 60px rgba(11,79,99,.18);

  --wrap:1200px;
  --nav-h:76px;

  --font:'PingFang SC','HarmonyOS Sans SC','Hiragino Sans GB','Microsoft YaHei',system-ui,-apple-system,'Segoe UI',sans-serif;

  /* 导航 LOGO 配色（在深色首屏上被覆盖为白色） */
  --logo-a:var(--ink);
  --logo-b:var(--teal);
}

*,*::before,*::after{box-sizing:border-box}

html{
  scroll-behavior:smooth;
  scroll-padding-top:var(--nav-h);
  -webkit-text-size-adjust:100%;
}

body{
  margin:0;
  font-family:var(--font);
  color:var(--text);
  background:var(--paper);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}

img,svg,video{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3{margin:0;line-height:1.25;font-weight:700;letter-spacing:-.01em}
p{margin:0}

.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:24px}

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;
  background:var(--ink);color:#fff;padding:10px 18px;border-radius:0 0 10px 0;
}
.skip-link:focus{left:0}

:focus-visible{outline:3px solid var(--teal);outline-offset:3px;border-radius:6px}

/* ---------- 通用文字组件 ---------- */
.eyebrow{
  font-size:12px;font-weight:700;letter-spacing:.24em;text-transform:uppercase;
  color:rgba(255,255,255,.82);margin-bottom:18px;
}
.eyebrow-dark{color:var(--teal)}

.h2{
  font-size:clamp(28px,4.2vw,46px);
  color:var(--ink);
  letter-spacing:-.02em;
}
.sec-desc{
  margin-top:18px;max-width:60ch;
  color:var(--text-mute);font-size:clamp(15px,1.3vw,17px);
}
.sec-head{max-width:820px;margin-bottom:clamp(40px,5vw,64px)}
.sec-head-light .h2{color:#fff}
.sec-head-light .sec-desc{color:rgba(255,255,255,.72)}

.section{padding:clamp(72px,9vw,128px) 0}
.section-cream{background:var(--cream)}
.section-ink{
  background:
    radial-gradient(120% 90% at 85% 0%,rgba(27,124,147,.55) 0%,transparent 60%),
    linear-gradient(160deg,var(--ink) 0%,var(--ink-deep) 100%);
  color:#fff;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 30px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .25s ease,background-color .25s ease,color .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--ink);color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{background:var(--teal);box-shadow:var(--shadow)}
.btn-ghost{border-color:rgba(255,255,255,.55);color:#fff;background:rgba(255,255,255,.06);backdrop-filter:blur(6px)}
.btn-ghost:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn-sm{padding:9px 20px;font-size:14px;background:var(--ink);color:#fff}
.btn-sm:hover{background:var(--teal)}
.btn-block{width:100%;padding:16px 24px;font-size:16px}

/* =========================================================
   顶部导航
   ========================================================= */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:100;
  height:var(--nav-h);
  display:flex;align-items:center;
  transition:background-color .35s ease,box-shadow .35s ease,height .35s ease;
}
.site-header.is-solid{
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(14px);
  box-shadow:0 1px 0 var(--line),0 8px 24px rgba(11,79,99,.06);
  height:68px;
}
.site-header.is-solid .nav a:not(.btn){color:var(--text)}
.site-header.is-solid .nav-toggle span{background:var(--ink)}

.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}

.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-logo{width:118px;height:auto;transition:width .3s ease}
.brand-text{
  font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--logo-a);
  padding-left:12px;border-left:1px solid rgba(127,127,127,.35);
  white-space:nowrap;
}
/* 深色首屏上：LOGO 与文字反白 */
.site-header:not(.is-solid) .brand-logo{--logo-a:#ffffff;--logo-b:rgba(255,255,255,.72)}
.site-header:not(.is-solid) .brand-text{color:rgba(255,255,255,.92);border-color:rgba(255,255,255,.35)}

.nav{display:flex;align-items:center;gap:26px}
.nav a{font-size:15px;font-weight:500;color:rgba(255,255,255,.9);transition:color .2s ease,opacity .2s ease}
.nav a:not(.btn):hover{opacity:.7}
/* 当前板块高亮 */
.nav a.is-current{position:relative;color:#fff}
.nav a.is-current::after{
  content:'';position:absolute;left:0;right:0;bottom:-7px;height:2px;
  border-radius:2px;background:var(--teal-soft);
}
.site-header.is-solid .nav a.is-current{color:var(--teal);font-weight:600}
/* 顶部空间不足时，导航项换成纯文字缩写，避免与品牌区挤在一起 */
@media (max-width:1120px) and (min-width:981px){
  .nav{gap:18px}
  .nav a{font-size:14px}
  .brand-text{display:none}
}

.nav-toggle{
  display:none;width:44px;height:44px;border:0;background:transparent;cursor:pointer;
  flex-direction:column;justify-content:center;align-items:center;gap:6px;
}
.nav-toggle span{display:block;width:24px;height:2px;background:#fff;border-radius:2px;transition:transform .3s ease,opacity .3s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

/* =========================================================
   首屏 Hero
   ========================================================= */
.hero{
  position:relative;
  min-height:100dvh;
  display:flex;align-items:center;
  overflow:hidden;
  background:var(--ink-deep);
  color:#fff;
}
.hero-media{position:absolute;inset:0;z-index:0}
.hero-video{
  width:100%;height:100%;
  object-fit:cover;object-position:center;
  opacity:.72;transition:opacity .8s ease;
  transform:translateZ(0);
}
.hero-video.is-ready{opacity:1}
.hero-veil{
  position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(8,59,75,.52) 0%,rgba(8,59,75,.22) 38%,rgba(8,59,75,.66) 100%),
    linear-gradient(90deg,rgba(8,59,75,.58) 0%,rgba(8,59,75,.10) 62%);
}
.hero-content{position:relative;z-index:1;padding-top:calc(var(--nav-h) + 24px);padding-bottom:120px}
.hero-title{
  font-size:clamp(38px,7.4vw,86px);
  line-height:1.12;letter-spacing:-.03em;font-weight:800;
  text-shadow:0 2px 30px rgba(0,0,0,.28);
}
/* 标题分行渐入，避免整块突然出现 */
.hero-title span{display:block}
.hero-title span:nth-child(1){animation:heroIn .9s cubic-bezier(.22,.61,.36,1) both}
.hero-title span:nth-child(2){animation:heroIn .9s cubic-bezier(.22,.61,.36,1) .14s both}
@keyframes heroIn{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}
.hero-sub{animation:heroIn .9s cubic-bezier(.22,.61,.36,1) .28s both}
.hero-actions{animation:heroIn .9s cubic-bezier(.22,.61,.36,1) .42s both}
@media (prefers-reduced-motion:reduce){
  .hero-title span,.hero-sub,.hero-actions{animation:none}
}
.hero-sub{
  margin-top:26px;max-width:60ch;
  font-size:clamp(15px,1.6vw,19px);
  color:rgba(255,255,255,.86);
  text-wrap:balance;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:40px}

.scroll-hint{
  position:absolute;left:50%;bottom:34px;transform:translateX(-50%);
  z-index:1;display:flex;flex-direction:column;align-items:center;gap:10px;
  color:rgba(255,255,255,.75);font-size:11px;letter-spacing:.28em;
}
.scroll-line{width:1px;height:46px;background:linear-gradient(180deg,rgba(255,255,255,.8),transparent);animation:scrollLine 2.4s ease-in-out infinite}
@keyframes scrollLine{0%,100%{opacity:.35;transform:scaleY(.6)}50%{opacity:1;transform:scaleY(1)}}

/* =========================================================
   关于我们
   ========================================================= */
.about-grid{
  display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);
  gap:clamp(32px,5vw,80px);align-items:start;
}
.about-body p{margin-bottom:18px;color:var(--text)}
.about-body p.lead{
  font-size:clamp(17px,1.7vw,21px);font-weight:600;color:var(--ink);line-height:1.7;
}
.fact-list{
  display:flex;flex-wrap:wrap;gap:clamp(24px,4vw,56px);
  margin-top:38px;padding-top:32px;border-top:1px solid var(--line);
}
.fact-list li{display:flex;flex-direction:column;gap:2px}
.fact-num{font-size:clamp(30px,3.4vw,42px);font-weight:800;color:var(--teal);line-height:1.1}
.fact-num em{font-size:.45em;font-weight:600;font-style:normal;margin-left:2px}
.fact-label{font-size:13px;color:var(--text-mute);letter-spacing:.08em}

/* =========================================================
   服务卡片
   ========================================================= */
.cards{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(18px,2.2vw,28px);
}
.card{
  position:relative;overflow:hidden;
  background:var(--paper);border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:clamp(26px,2.6vw,38px);
  transition:transform .35s ease,box-shadow .35s ease,border-color .35s ease;
}
/* 顶部高光条：hover 时从左展开 */
.card::before{
  content:'';position:absolute;left:0;top:0;height:3px;width:100%;
  background:linear-gradient(90deg,var(--ink),var(--teal),var(--teal-soft));
  transform:scaleX(0);transform-origin:left;
  transition:transform .45s cubic-bezier(.22,.61,.36,1);
}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:rgba(27,124,147,.34)}
.card:hover::before{transform:scaleX(1)}
.card-icon{
  width:54px;height:54px;border-radius:16px;
  display:grid;place-items:center;margin-bottom:22px;
  background:linear-gradient(140deg,rgba(27,124,147,.16),rgba(11,79,99,.08));
  color:var(--ink);
}
.card-icon svg{width:26px;height:26px}
.card h3{font-size:20px;color:var(--ink);margin-bottom:10px}
.card p{color:var(--text-mute);font-size:15px}
.tag-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.tag-list li{
  font-size:12px;letter-spacing:.06em;color:var(--teal);
  background:rgba(27,124,147,.1);border-radius:999px;padding:5px 12px;
}

/* =========================================================
   业务板块 / 核心优势卡片
   ========================================================= */
.cards--four{grid-template-columns:repeat(4,minmax(0,1fr))}

/* 三大业务板块卡：稍大、带竖排细分项 */
.card-pillar{padding:clamp(28px,3vw,42px)}
.card-pillar .card-icon{width:60px;height:60px;border-radius:18px}
.card-pillar .card-icon svg{width:28px;height:28px}
.card-pillar h3{font-size:22px}
.card-pillar p{font-size:15px}

.sub-list{
  margin-top:22px;padding-top:20px;border-top:1px dashed var(--line);
  display:grid;gap:11px;
}
.sub-list li{
  position:relative;padding-left:18px;
  font-size:15px;color:var(--text);
}
.sub-list li::before{
  content:'';position:absolute;left:0;top:.72em;
  width:6px;height:6px;border-radius:50%;
  background:var(--teal);
}

/* =========================================================
   在线订购（商品 + 表单 + 对公转账）
   ========================================================= */
.shop-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:clamp(20px,2.6vw,32px);
}
.product-card{
  background:var(--paper);border:1px solid var(--line);
  border-radius:var(--radius-lg);overflow:hidden;
  transition:transform .35s ease,box-shadow .35s ease;
}
.product-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}

.gallery-main{
  position:relative;display:block;width:100%;padding:0;border:0;
  /* 底色与商品图的浅灰影棚背景一致，contain 留白时看不出接缝 */
  background:linear-gradient(180deg,#B3B0AB 0%,#D9D6D1 100%);
  cursor:zoom-in;overflow:hidden;
}
/* 商品原图是 2:3 竖图，用 contain 完整显示不裁切人物 */
.gallery-main img{
  width:100%;aspect-ratio:4/5;max-height:58vh;
  object-fit:contain;background:transparent;
  transition:transform .5s ease;
}
.product-card:hover .gallery-main img{transform:scale(1.02)}
/* 悬停时出现放大镜提示 */
.gallery-main::after{
  content:'⤢ 点击放大';position:absolute;right:12px;bottom:12px;
  padding:6px 12px;border-radius:999px;
  background:rgba(11,79,99,.82);color:#fff;font-size:12px;letter-spacing:.06em;
  opacity:0;transform:translateY(6px);
  transition:opacity .25s ease,transform .25s ease;pointer-events:none;
}
.gallery-main:hover::after,.gallery-main:focus-visible::after{opacity:1;transform:none}

.gallery-thumbs{
  display:flex;gap:8px;padding:12px 14px 0;
  overflow-x:auto;scrollbar-width:thin;
}
.thumb{
  flex:0 0 auto;width:52px;height:70px;padding:0;border:2px solid transparent;
  border-radius:8px;overflow:hidden;background:none;cursor:pointer;
  transition:border-color .2s ease,opacity .2s ease;
}
.thumb img{width:100%;height:100%;object-fit:cover}
.thumb:hover{opacity:.85}
.thumb.is-active{border-color:var(--teal)}

.product-info{padding:clamp(20px,2.2vw,30px)}
.product-title-row{display:flex;align-items:baseline;justify-content:space-between;gap:12px}
.product-title-row h3{font-size:22px;color:var(--ink)}
.price{font-size:26px;font-weight:800;color:var(--teal);white-space:nowrap}
.price span{font-size:14px;font-weight:500;color:var(--text-mute)}
.product-desc{margin-top:6px;font-size:14px;color:var(--text-mute)}

/* ---- 尺码 × 数量：每个尺码一行，直接选多件 ---- */
.size-rows{margin-top:18px;display:grid;gap:8px}
.size-row{
  display:grid;grid-template-columns:1fr auto;align-items:center;gap:12px;
  padding:7px 8px 7px 14px;border-radius:12px;
  background:rgba(247,241,230,.55);border:1px solid transparent;
  transition:background-color .2s ease,border-color .2s ease;
}
.size-row.is-active{background:rgba(27,124,147,.1);border-color:rgba(27,124,147,.32)}
.size-label{font-size:14.5px;font-weight:600;color:var(--text)}

.qty-stepper--line{width:132px}
.qty-stepper--line button{width:38px;height:38px;font-size:17px;border-radius:10px}
.qty-stepper--line input{width:52px;text-align:center;font-size:15px;padding:9px 0}
.qinput{
  min-width:0;text-align:center;border:0;background:transparent;
  font-family:inherit;font-size:15px;font-weight:700;color:var(--ink);
}
.qbtn.is-picked{color:var(--teal);font-weight:700}

.card-subtotal{
  margin-top:14px;font-size:13.5px;color:var(--text-mute);
  display:flex;align-items:center;gap:8px;
}
.card-subtotal b{color:var(--text-mute);font-weight:700;min-width:14px}
.card-subtotal.is-picked{color:var(--teal)}
.card-subtotal.is-picked b{color:var(--teal)}

/* ---- 已选商品清单（购物车） ---- */
.cart-box{
  margin-bottom:22px;padding:16px 18px;border-radius:14px;
  background:var(--cream-2);border:1px solid var(--line);
}
.cart-head{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-bottom:12px;
}
.cart-title{font-size:15px;font-weight:700;color:var(--ink)}
.cart-count{font-size:14px;font-weight:700;color:var(--teal)}
.cart-list{display:grid;gap:8px}
.cart-empty{margin:0;font-size:13.5px;color:var(--text-mute);line-height:1.7}

.cart-item{
  display:grid;grid-template-columns:1fr auto auto auto;
  align-items:center;gap:10px;
  padding:9px 10px;border-radius:12px;
  background:var(--paper);border:1px solid var(--line);
}
/* display:grid 会盖掉浏览器对 [hidden] 的默认 display:none，必须显式声明 */
.cart-item[hidden]{display:none}
.cart-name{font-size:14px;font-weight:600;color:var(--ink);min-width:0}
.qty-stepper--mini{width:112px}
.qty-stepper--mini button{width:32px;height:32px;font-size:15px}
.qty-stepper--mini .qinput{width:46px;font-size:14px}
.cart-sub{font-size:13.5px;font-weight:700;color:var(--teal);white-space:nowrap;min-width:46px;text-align:right}
.cart-del{
  border:0;background:none;color:var(--text-mute);font-size:12.5px;
  cursor:pointer;text-decoration:underline;padding:4px 2px;font-family:inherit;
  transition:color .2s ease;
}
.cart-del:hover{color:var(--ink)}
.cart-box .order-total{margin:14px 0 0}

/* 下单区 */
.order-zone{
  display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);
  gap:clamp(20px,2.6vw,32px);margin-top:clamp(28px,3.4vw,44px);
  align-items:start;
}
.order-form-card{
  background:var(--paper);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:clamp(24px,2.8vw,38px);
}
.order-title{font-size:20px;color:var(--ink);margin-bottom:20px}

.field-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.field-row.two{grid-template-columns:repeat(2,minmax(0,1fr))}

.qty-stepper{
  display:flex;align-items:stretch;border:1px solid var(--line);
  border-radius:12px;overflow:hidden;background:rgba(247,241,230,.5);
}
.qty-stepper button{
  width:42px;border:0;background:transparent;cursor:pointer;
  font-size:18px;color:var(--ink);font-family:inherit;
  transition:background-color .2s ease;
}
.qty-stepper button:hover{background:rgba(27,124,147,.1)}
.qty-stepper input{
  flex:1;min-width:0;text-align:center;border:0;background:transparent;
  font-family:inherit;font-size:16px;font-weight:700;color:var(--ink);padding:12px 0;
}

.order-total{
  display:flex;align-items:center;justify-content:space-between;
  margin:6px 0 18px;padding:14px 18px;
  background:rgba(27,124,147,.08);border-radius:12px;
}
.order-total span{font-size:14px;color:var(--text-mute)}
.order-total strong{font-size:26px;font-weight:800;color:var(--teal)}

/* 成功面板 */
.order-success{text-align:left}
.success-mark{
  width:52px;height:52px;border-radius:50%;
  display:grid;place-items:center;margin:0 0 14px;
  background:var(--teal);color:#fff;font-size:26px;font-weight:700;
}
.order-success h3{font-size:22px;color:var(--ink);margin-bottom:10px}
/* 提交后焦点落到标题上，但不画焦点框（避免视觉突兀） */
.order-success h3:focus{outline:none}
.success-tip{font-size:14.5px;color:var(--text-mute)}
.success-tip .em{color:var(--teal);font-weight:700}
.success-summary{
  margin:18px 0;padding:16px 18px;font-size:14.5px;line-height:2;
  background:rgba(247,241,230,.7);border-radius:12px;color:var(--text);
  white-space:pre-line;
}
/* ---- 付款截图上传 ---- */
.proof-box{margin-top:18px;text-align:left}
.proof-title{font-size:15px;font-weight:600;color:var(--ink);margin-bottom:10px}
.proof-title span{font-weight:400;font-size:13px;color:var(--text-mute);margin-left:6px}
.proof-drop{
  border:1px dashed rgba(11,79,99,.35);border-radius:12px;
  background:var(--cream-2);padding:18px;transition:border-color .2s ease,background-color .2s ease;
}
.proof-drop.is-over{border-color:var(--teal);background:#EAF4F7}
.proof-empty{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.proof-empty span{font-size:13px;color:var(--text-mute)}
.proof-preview img{
  display:block;width:100%;max-height:220px;object-fit:contain;
  border-radius:10px;background:#fff;
}
.proof-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:10px;font-size:13px;color:var(--text-mute);
}
.proof-remove{
  border:0;background:none;color:var(--teal);font-size:13px;cursor:pointer;
  text-decoration:underline;
}
.proof-status{margin-top:8px;font-size:13px;color:var(--text-mute);min-height:18px}
.proof-status.is-ok{color:#1E8E5A}
.proof-status.is-warn{color:#C4513C}
.success-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
.btn-ghost-dark{border-color:rgba(11,79,99,.4);color:var(--ink);background:transparent}
.btn-ghost-dark:hover{background:var(--ink);color:#fff}
.btn-plain{background:transparent;color:var(--text-mute);border-color:transparent}
.btn-plain:hover{color:var(--ink);transform:none}

/* 转账信息卡 */
.pay-card{
  background:linear-gradient(160deg,var(--ink) 0%,var(--ink-deep) 100%);
  color:#fff;border-radius:var(--radius-lg);
  padding:clamp(24px,2.8vw,36px);
}
.pay-card h3{font-size:19px;margin-bottom:8px}
.pay-card-tip{font-size:13.5px;color:rgba(255,255,255,.7);margin-bottom:18px}
.pay-box{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);
  border-radius:14px;padding:16px 18px;display:grid;gap:12px;
}
.pay-line{display:grid;grid-template-columns:64px 1fr;gap:12px;align-items:baseline;font-size:14px}
.pay-line span{color:rgba(255,255,255,.55);font-size:12px;letter-spacing:.05em}
.pay-line b{font-weight:600;line-height:1.6;word-break:break-all}
.pay-amount{color:#8FD8E8!important;font-size:18px}
.order-form-card .pay-box{background:rgba(27,124,147,.06);border-color:var(--line)}
.order-form-card .pay-line span{color:var(--text-mute)}
.order-form-card .pay-line b{color:var(--ink)}
.pay-notes{margin-top:20px;display:grid;gap:10px}
.pay-notes li{
  position:relative;padding-left:16px;font-size:13px;color:rgba(255,255,255,.75);
}
.pay-notes li::before{
  content:'';position:absolute;left:0;top:.68em;width:5px;height:5px;
  border-radius:50%;background:var(--teal-soft);
}

/* 一键复制小按钮 */
.copy-btn{
  display:inline-flex;align-items:center;margin-left:8px;
  padding:3px 10px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.7);
  color:var(--teal);font-size:12px;font-family:inherit;cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
  vertical-align:middle;
}
.copy-btn:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.copy-btn.is-done{background:var(--teal);color:#fff;border-color:var(--teal)}
.copy-btn-light{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.3);color:#fff}
.copy-btn-light:hover{background:#fff;color:var(--ink)}

/* 顶部滚动进度条 */
.scroll-progress{
  position:fixed;left:0;top:0;height:3px;width:0;z-index:120;
  background:linear-gradient(90deg,var(--ink),var(--teal),var(--teal-soft));
  transition:width .1s linear;
}

/* 返回顶部 */
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:110;
  width:46px;height:46px;border-radius:50%;
  border:1px solid var(--line);background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px);color:var(--ink);
  font-size:20px;line-height:1;cursor:pointer;
  box-shadow:var(--shadow);
  opacity:0;transform:translateY(12px) scale(.9);pointer-events:none;
  transition:opacity .3s ease,transform .3s ease,background-color .2s ease,color .2s ease;
}
.to-top.is-show{opacity:1;transform:none;pointer-events:auto}
.to-top:hover{background:var(--ink);color:#fff}

/* 灯箱 */
.lightbox{
  position:fixed;inset:0;z-index:300;
  background:rgba(8,35,45,.94);backdrop-filter:blur(6px);
  display:grid;place-items:center;padding:4vh 4vw;
  opacity:0;transition:opacity .25s ease;
}
.lightbox.is-open{opacity:1}
.lightbox[hidden]{display:none}
.lightbox-stage{display:grid;place-items:center;max-width:100%}
.lightbox img{max-width:min(100%,88vw);max-height:84vh;width:auto;height:auto;object-fit:contain;border-radius:10px;box-shadow:var(--shadow-lg);transition:opacity .18s ease}
.lightbox.is-loading img{opacity:.35}
.lightbox-close{
  position:absolute;top:18px;right:22px;
  width:46px;height:46px;border-radius:50%;border:1px solid rgba(255,255,255,.35);
  background:rgba(255,255,255,.08);color:#fff;font-size:24px;line-height:1;
  cursor:pointer;transition:background-color .2s ease;
}
.lightbox-close:hover{background:rgba(255,255,255,.2)}
.lightbox-arrow{
  position:absolute;top:50%;transform:translateY(-50%);
  width:52px;height:52px;border-radius:50%;
  border:1px solid rgba(255,255,255,.35);
  background:rgba(255,255,255,.1);color:#fff;
  font-size:30px;line-height:1;padding:0 0 5px;
  display:grid;place-items:center;cursor:pointer;
  transition:background-color .2s ease;
}
.lightbox-arrow:hover{background:rgba(255,255,255,.22)}
.lightbox-prev{left:22px}
.lightbox-next{right:22px}
.lightbox-counter{
  position:absolute;bottom:20px;left:50%;transform:translateX(-50%);
  color:rgba(255,255,255,.85);font-size:14px;letter-spacing:.1em;
}
/* 深色遮罩上的控件用白色焦点环，保证可见 */
.lightbox :focus-visible,.pay-modal :focus-visible{outline-color:#fff}
@media (max-width:640px){
  .lightbox-arrow{width:42px;height:42px;font-size:24px;padding-bottom:3px}
  .lightbox-prev{left:8px}
  .lightbox-next{right:8px}
}

/* =========================================================
   微信扫码付款弹窗
   ========================================================= */
.pay-modal{
  position:fixed;inset:0;z-index:280;
  background:rgba(8,35,45,.72);backdrop-filter:blur(5px);
  display:grid;place-items:center;padding:4vh 4vw;
  opacity:0;transition:opacity .2s ease;
}
.pay-modal[hidden]{display:none}
.pay-modal.is-open{opacity:1}
.pay-modal-box{
  position:relative;width:min(400px,94vw);max-height:92vh;overflow:auto;
  background:var(--paper);border-radius:var(--radius-lg);
  padding:34px 34px 30px;text-align:center;box-shadow:var(--shadow-lg);
  transform:translateY(10px) scale(.98);transition:transform .25s cubic-bezier(.22,.61,.36,1);
  /* 二维码损坏时，浏览器会用 alt 文字撑出巨大的隐式高度，
     加上 HTML 上的 width/height=720 属性，可能把弹窗顶到几万像素高。
     锁死内容高度上限 + 让二维码区自己占位，弹窗就不会失控。 */
  overscroll-behavior:contain;
}
.pay-modal.is-open .pay-modal-box{transform:none}
.pay-modal-box h3{font-size:22px;color:var(--ink)}
.pay-modal-amount{margin-top:8px;font-size:15px;color:var(--text-mute)}
.pay-modal-amount b{font-size:30px;color:var(--teal);margin-left:8px;font-weight:800}
.pay-modal-qr{
  position:relative;width:238px;margin:20px auto 14px;border-radius:12px;
  overflow:hidden;border:1px solid var(--line);
}
/* height:auto 必须显式写：HTML 上带了 width/height 属性，
   CSS 只覆盖 width 会让 height 仍按属性值渲染，二维码会被拉长变形 */
.pay-modal-qr img{display:block;width:100%;height:auto;aspect-ratio:1/1;object-fit:contain;background:#fff}
/* 图片加载失败时（比如服务器上文件没传上去、或传输中损坏）：
   浏览器会画出alt 文字 + 破图标，同时因为没有真实尺寸把容器撑得很高，
   连带整个弹窗超高 → 出现「内滚动条 + 页面滚动条」双重滚动条。
   这里强制保持 1:1 方形并隐藏破图，把位置让给兜底提示。 */
.pay-modal-qr img.qr-broken{display:none}
.qr-fallback{
  position:absolute;inset:0;z-index:2;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:8px;padding:18px 16px;text-align:center;background:#FDF6EC;
  border-radius:12px;
}
.qr-fallback[hidden]{display:none}
.qr-fallback b{font-size:14px;color:#8A5A12}
.qr-fallback span{font-size:12px;line-height:1.7;color:#7A6A50}
.pay-modal-alt-pay{
  background:#FDF6EC;color:#8A5A12;border-radius:9px;
  padding:9px 13px;font-size:13px;line-height:1.7;
}
.pay-modal-alt-pay b{color:#8A5A12}

/* ============ 弹窗内的对公转账折叠面板 ============
   原来那句「直接点这里查看对公转账账户」是纯文本，点了没反应。
   现在用 <details>，纯 CSS 展开，键盘/读屏都可用。 */
.pay-alt{
  margin:0 0 12px;text-align:left;
  background:#FDF6EC;border:1px solid #EFDFC4;border-radius:10px;
  overflow:hidden;
}
.pay-alt>summary{
  /* summary 默认带三角标记，这里保留（它就是展开/收起的手柄），
     只调内边距与配色，让它看起来像一个可点的按钮 */
  padding:10px 13px;font-size:13px;line-height:1.7;
  color:#8A5A12;cursor:pointer;list-style:revert;
  -webkit-tap-highlight-color:transparent;
}
.pay-alt>summary:hover{background:#F8EBD7}
.pay-alt>summary b{color:#8A5A12}
/* 键盘焦点必须看得见（无障碍硬性要求，去掉 outline 会让键盘用户迷路） */
.pay-alt>summary:focus-visible{
  outline:2px solid #1B7C93;outline-offset:-2px;background:#F8EBD7;
}
.pay-alt[open]>summary{border-bottom:1px solid #EFDFC4}
.pay-box-mini{
  margin:0;padding:11px 13px;
  background:transparent;border-radius:0;
  /* 覆盖 .pay-box 的 display:grid;gap:12px —— 行距太松，
     在本来就紧张的付款弹窗里会多占两行高度 */
  display:block;
}
.pay-box-mini .pay-line{margin-top:7px}
.pay-box-mini .pay-line:first-child{margin-top:0}
.pay-acct-row{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
}
.pay-alt-tip{
  margin:0;padding:9px 13px;
  font-size:12.5px;line-height:1.75;color:#7A6A50;
  background:#FBF3E6;border-top:1px solid #EFDFC4;
}
.pay-alt-tip b{color:#8A5A12}
/* 【白字隐形 bug ·其二】
   .copy-btn-light 是给**深色**卡片设计的（白字 + 半透明白底 + 半透明白边），
   但它被复用到弹窗里 —— 而弹窗底色是米白 paper。
   结果「复制」按钮变成白字压米白底，对比度只有 1.11，肉眼几乎看不见。
   （第一处同类问题是账号数字，见 .pay-box-mini .pay-acct 那段注释。）
   这里在浅色容器里改用「白底 + 墨青字」，与深色卡片里的表现一致地清晰。 */
.pay-box-mini .copy-btn-light{
  background:#fff;border-color:var(--line);color:var(--teal);
}
.pay-box-mini .copy-btn-light:hover{
  background:var(--ink);color:#fff;border-color:var(--ink);
}
/* 折叠面板里的账户值（户名 / 开户行）也显式给色。
   原来没写，靠 body 的 color 继承下来 —— 能显示，但继承链一改就断，
   而且 .pay-line b 在浅色容器里没有任何规则兜底，太脆弱。 */
.pay-box-mini .pay-line > b{color:var(--ink)}
/* 【白字隐形 bug】.pay-line span 是后代选择器，会命中
   「银行账号」那一行里嵌套的 <span class="pay-acct"> 和「复制」按钮文字，
   把米白底上的账号数字染成 rgba(255,255,255,.55) —— 近乎纯白，等于隐形。
   症状：弹窗里明明写着银行账号，屏幕上却只剩户名和开户银行两行。 */
.pay-box-mini .pay-line > span{color:var(--text-mute)}
.pay-box-mini .pay-acct{color:var(--ink);font-variant-numeric:tabular-nums;letter-spacing:.02em}
/* 深色卡片（.pay-card）里的银行账号：同样会被 .pay-line span 染成 55% 白，
   对比度仅 3.94 偏低。账号是客户要照着抄的关键信息，给足对比度。 */
.pay-card .pay-acct{color:#fff;font-variant-numeric:tabular-nums;letter-spacing:.02em}
/* 让账号行在窄屏也不会被挤到看不见 */
.pay-box-mini .pay-line{grid-template-columns:56px 1fr;gap:10px;font-size:13.5px}
/* 图片坏了就别画扫描线，否则会盖在兜底提示上 */
.pay-modal-qr img.qr-broken ~ .qr-scanline{display:none}
/* 小屏（如 iPhone SE / 390×844）压缩二维码与留白，
   让「已付款，发送付款信息」按钮和发送结果提示尽量落在一屏内 */
@media (max-height:900px){
  .pay-modal-box{padding:24px 22px 22px}
  .pay-modal-qr{width:200px;margin:14px auto 10px}
  .pay-modal-amount b{font-size:26px}
  .pay-modal-box h3{font-size:20px}
  .pay-modal-tip{line-height:1.65;margin-bottom:8px}
}
.qr-scanline{
  position:absolute;left:0;right:0;top:0;height:3px;
  background:linear-gradient(90deg,transparent,#22B573,transparent);
  animation:qrscan 2.4s ease-in-out infinite;
}
@keyframes qrscan{
  0%,100%{top:4%}
  50%{top:94%}
}
@media (prefers-reduced-motion:reduce){ .qr-scanline{animation:none;display:none} }
.pay-modal-tip{
  font-size:13.5px;line-height:1.8;color:var(--text-mute);
  margin:0 0 10px;text-align:left;
}
.pay-modal-tip b{color:var(--ink)}
.pay-modal-order{
  font-size:13.5px;line-height:1.8;color:var(--text-mute);
  margin:0 0 18px;padding:10px 14px;text-align:left;
  background:rgba(247,241,230,.8);border-radius:10px;
}
.pay-modal-order .em{color:var(--teal);font-weight:700;letter-spacing:.04em}
.pay-modal-close{
  position:absolute;top:12px;right:14px;width:36px;height:36px;
  border-radius:50%;border:1px solid var(--line);background:none;
  color:var(--text-mute);font-size:20px;line-height:1;cursor:pointer;
  transition:background-color .2s ease;
}
.pay-modal-close:hover{background:var(--cream-2)}

/* =========================================================
   合作流程
   ========================================================= */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(20px,3vw,40px)}
.step{position:relative;padding-top:26px;border-top:1px solid rgba(255,255,255,.22)}
.step-num{
  display:block;font-size:13px;font-weight:700;letter-spacing:.2em;
  color:var(--teal-soft);margin-bottom:14px;
}
.step h3{font-size:20px;color:#fff;margin-bottom:10px}
.step p{font-size:15px;color:rgba(255,255,255,.72)}

/* =========================================================
   联系我们
   ========================================================= */
.contact-grid{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.86fr);
  gap:clamp(36px,5vw,80px);align-items:start;
}
.contact-list{margin-top:40px;display:grid;gap:22px}
.contact-list li{
  display:grid;grid-template-columns:96px 1fr;gap:20px;align-items:baseline;
  padding-bottom:20px;border-bottom:1px solid var(--line);
}
.c-label{font-size:13px;letter-spacing:.14em;color:var(--text-mute)}
.c-value{font-size:16px;color:var(--ink);font-weight:500}
.c-value a{border-bottom:1px solid rgba(27,124,147,.4);transition:color .2s ease}
.c-value a:hover{color:var(--teal)}

.contact-form{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:clamp(26px,3vw,40px);box-shadow:var(--shadow-sm);
}
.field{margin-bottom:20px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink);margin-bottom:8px;letter-spacing:.04em}
.field input,.field select,.field textarea{
  width:100%;padding:13px 16px;font-family:inherit;font-size:15px;color:var(--text);
  background:rgba(247,241,230,.5);
  border:1px solid var(--line);border-radius:12px;
  transition:border-color .2s ease,background-color .2s ease,box-shadow .2s ease;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;background:#fff;border-color:var(--teal);box-shadow:0 0 0 4px rgba(27,124,147,.12);
}
.field textarea{resize:vertical;min-height:110px}
.field input.is-error{border-color:#C0392B}
.form-note{margin-top:14px;font-size:14px;min-height:22px;color:var(--teal);font-weight:600}
.form-note.is-error{color:#C0392B}
/* 邮件投递结果提示：两处（成功面板 / 付款弹窗）共用，居中排版更贴合所在容器 */
.pay-mail-note{
  margin-top:12px;padding:9px 12px;border-radius:10px;
  font-size:13.5px;line-height:1.55;font-weight:500;
  background:rgba(27,124,147,.08);color:var(--teal);
  border:1px solid rgba(27,124,147,.18);
}
.pay-mail-note.is-error{background:rgba(192,57,43,.08);color:#C0392B;border-color:rgba(192,57,43,.22)}
.pay-mail-note:empty{display:none}

/* =========================================================
   页脚
   ========================================================= */
.site-footer{background:var(--ink-deep);color:rgba(255,255,255,.72);padding:clamp(48px,6vw,72px) 0 40px}
.footer-inner{display:grid;gap:32px}
.footer-brand{display:flex;align-items:center;gap:18px}
.footer-logo{width:52px;flex:0 0 auto}
.footer-name{font-size:17px;font-weight:700;color:#fff}
.footer-copy{font-size:13px;margin-top:4px}
.footer-nav{display:flex;flex-wrap:wrap;gap:26px}
.footer-nav a{font-size:14px;transition:color .2s ease}
.footer-nav a:hover{color:#fff}
.footer-legal{
  font-size:12px;color:rgba(255,255,255,.5);
  padding-top:26px;border-top:1px solid rgba(255,255,255,.14);
}
.footer-legal a{border-bottom:1px solid rgba(255,255,255,.25)}
.footer-contact{
  font-size:12px;color:rgba(255,255,255,.5);margin-top:10px;
}
.footer-contact a{color:rgba(255,255,255,.72);border-bottom:1px solid rgba(255,255,255,.25)}
.footer-contact a:hover{color:#fff}

/* =========================================================
   滚动进场动画
   ========================================================= */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s cubic-bezier(.22,.61,.36,1),transform .7s cubic-bezier(.22,.61,.36,1)}
.reveal.is-in{opacity:1;transform:none}

/* =========================================================
   响应式
   ========================================================= */
@media (max-width:1024px){
  .cards,.cards--four{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (max-width:980px){
  .about-grid,.contact-grid{grid-template-columns:minmax(0,1fr)}
  .shop-grid,.order-zone{grid-template-columns:minmax(0,1fr)}
  .brand-text{display:none}
  /* 单列时商品卡很宽，收窄主图区让照片占比更合理 */
  .gallery-main{max-width:min(100%,620px);margin-inline:auto}
  .gallery-thumbs{justify-content:center}

  .nav-toggle{display:flex}
  .nav{
    position:fixed;inset:var(--nav-h) 0 auto 0;
    flex-direction:column;align-items:flex-start;gap:4px;
    padding:22px 24px 32px;
    background:#fff;box-shadow:var(--shadow);
    transform:translateY(-12px);opacity:0;pointer-events:none;
    transition:opacity .28s ease,transform .28s ease;
  }
  .nav.is-open{opacity:1;transform:none;pointer-events:auto}
  /* 导航收缩为 68px 时，抽屉菜单跟随，避免顶部空隙 */
  .site-header.is-solid .nav{inset:68px 0 auto 0}
  .nav a{color:var(--text)!important;padding:12px 0;font-size:16px;width:100%}
  /* 当前板块：左侧色条标记，比整行下划线更清晰 */
  .nav a.is-current{
    color:var(--teal)!important;font-weight:600;
    box-shadow:inset 3px 0 0 var(--teal);padding-left:14px;
  }
  .nav a.is-current::after{display:none}
  .nav a.btn{
    margin-top:14px;text-align:center;padding:13px 0;
    background:var(--ink);color:#fff!important;
  }
  .nav a.btn:hover{background:var(--teal)}
}

@media (max-width:600px){
  body{font-size:15px}
  .wrap{padding-inline:20px}
  .cards,.cards--four,.steps{grid-template-columns:minmax(0,1fr)}
  .gallery-main img{max-height:48vh}
  .to-top{right:16px;bottom:18px;width:42px;height:42px}
  .field-row,.field-row.two{grid-template-columns:minmax(0,1fr)}
  .success-actions .btn{flex:1 1 auto}
  .pay-line{grid-template-columns:minmax(0,1fr);gap:2px}
  .hero-content{padding-bottom:110px}
  .hero-actions .btn{flex:1 1 auto}
  .contact-list li{grid-template-columns:minmax(0,1fr);gap:6px}
  .footer-nav{gap:18px}
  .scroll-hint{bottom:22px}
  .qty-stepper--line{width:120px}
  .qty-stepper--line button{width:34px;height:36px}
  /* 窄屏：名称独占一行，控制器 + 小计 + 移除 在第二行紧凑排布 */
  .cart-item{grid-template-columns:auto 1fr auto;row-gap:6px;column-gap:8px}
  .cart-name{grid-column:1 / -1}
  .qty-stepper--mini{width:104px}
  .cart-sub{justify-self:end}
  .cart-del{justify-self:end}
}

/* ---------- 降低动效偏好 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  .reveal{opacity:1;transform:none}
  .scroll-line{animation:none}
  .gallery-main::after{transition:none}
}