/* ==========================================================================
   信一植富油墨 · 官网样式表
   设计语言: iOS 风格 (Human Interface Guidelines)
   - 系统字体栈 / 大标题层级 / 分组卡片 / 毛玻璃导航 / 克制的留白
   - 主色沿用企业品牌橙 (取自小程序真实配色)
   ========================================================================== */

/* ---------- 设计令牌 ---------- */
:root{
  /* 品牌色 */
  --brand:#DE7837;
  --brand-light:#F4B941;
  --brand-deep:#C25E1E;
  --brand-grad:linear-gradient(135deg,#F4B941 0%,#F09838 55%,#DE7837 100%);
  --brand-tint:rgba(222,120,55,.10);

  /* iOS 系统色 */
  --bg:#F2F2F7;              /* systemGroupedBackground */
  --bg-elevated:#FFFFFF;
  --label:#1C1C1E;           /* label */
  --label-2:rgba(60,60,67,.60);   /* secondaryLabel */
  --label-3:rgba(60,60,67,.30);   /* tertiaryLabel */
  --separator:rgba(60,60,67,.12);
  --fill:rgba(120,120,128,.12);
  --blue:#007AFF;
  --green:#34C759;

  /* 圆角 (iOS 连续圆角观感) */
  --r-xl:22px;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:10px;

  /* 阴影 (极轻) */
  --shadow-sm:0 1px 2px rgba(0,0,0,.04), 0 4px 14px rgba(0,0,0,.045);
  --shadow-md:0 2px 6px rgba(0,0,0,.05), 0 12px 32px rgba(0,0,0,.07);
  --shadow-lg:0 4px 12px rgba(0,0,0,.06), 0 24px 60px rgba(0,0,0,.10);

  --nav-h:52px;
  --maxw:1180px;
}

*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","SF Pro Display","Helvetica Neue","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.5;
  letter-spacing:-.01em;
  color:var(--label);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}

/* ---------- 排版层级 (iOS Type Ramp) ---------- */
.t-large-title{font-size:34px;line-height:1.15;font-weight:700;letter-spacing:-.022em;}
.t-title1{font-size:28px;line-height:1.2;font-weight:700;letter-spacing:-.02em;}
.t-title2{font-size:22px;line-height:1.25;font-weight:700;letter-spacing:-.018em;}
.t-title3{font-size:20px;line-height:1.3;font-weight:600;letter-spacing:-.015em;}
.t-headline{font-size:17px;line-height:1.4;font-weight:600;letter-spacing:-.014em;}
.t-body{font-size:17px;line-height:1.55;letter-spacing:-.012em;}
.t-callout{font-size:16px;line-height:1.5;letter-spacing:-.01em;}
.t-subhead{font-size:15px;line-height:1.45;letter-spacing:-.008em;}
.t-footnote{font-size:13px;line-height:1.45;letter-spacing:-.004em;}
.t-caption{font-size:12px;line-height:1.35;letter-spacing:0;}
.t-label-2{color:var(--label-2);}
.t-label-3{color:var(--label-3);}
.t-brand{color:var(--brand);}

@media (min-width:768px){
  .t-large-title{font-size:48px;letter-spacing:-.025em;}
  .t-title1{font-size:36px;}
  .t-title2{font-size:26px;}
}

/* ---------- 布局 ---------- */
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px;}
.section{padding:56px 0;}
.section-tight{padding:36px 0;}
@media (min-width:768px){ .section{padding:88px 0;} }
.section-head{margin-bottom:28px;}
.section-head .eyebrow{
  font-size:13px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;
  color:var(--brand);margin-bottom:8px;
}
.section-head p.desc{margin-top:10px;color:var(--label-2);max-width:640px;}

/* ---------- 毛玻璃导航 ---------- */
.nav{
  position:sticky;top:0;z-index:100;height:var(--nav-h);
  background:rgba(255,255,255,.72);
  -webkit-backdrop-filter:saturate(180%) blur(20px);
  backdrop-filter:saturate(180%) blur(20px);
  border-bottom:.5px solid var(--separator);
}
.nav.scrolled{background:rgba(255,255,255,.86);box-shadow:0 1px 0 rgba(0,0,0,.02);}
.nav-inner{
  max-width:var(--maxw);margin:0 auto;padding:0 20px;height:100%;
  display:flex;align-items:center;gap:12px;
}
.logo{display:flex;align-items:center;gap:9px;font-weight:700;font-size:16px;letter-spacing:-.02em;}
.logo .mark{
  width:30px;height:30px;border-radius:9px;background:var(--brand-grad);
  display:flex;align-items:center;justify-content:center;color:#fff;
  font-size:14px;font-weight:700;flex:none;
}
.logo .sub{font-size:10px;font-weight:500;color:var(--label-2);letter-spacing:.04em;line-height:1;}
.nav-links{margin-left:auto;display:none;align-items:center;gap:4px;}
@media (min-width:900px){ .nav-links{display:flex;} }
.nav-links a{
  padding:7px 13px;border-radius:99px;font-size:14.5px;font-weight:500;
  color:var(--label-2);transition:background .18s,color .18s;
}
.nav-links a:hover{background:var(--fill);color:var(--label);}
.nav-links a.on{background:var(--brand-tint);color:var(--brand-deep);font-weight:600;}
.nav-cta{
  margin-left:8px;display:none;padding:8px 16px;border-radius:99px;
  background:var(--brand);color:#fff;font-size:14.5px;font-weight:600;
  transition:transform .18s,box-shadow .18s;
}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 6px 16px rgba(222,120,55,.32);}
@media (min-width:900px){ .nav-cta{display:inline-block;} }
.burger{
  margin-left:auto;width:40px;height:40px;border:0;background:none;cursor:pointer;
  display:flex;align-items:center;justify-content:center;border-radius:10px;
}
.burger:hover{background:var(--fill);}
.burger span{display:block;width:17px;height:1.5px;background:var(--label);border-radius:2px;position:relative;}
.burger span::before,.burger span::after{
  content:"";position:absolute;left:0;width:17px;height:1.5px;background:var(--label);border-radius:2px;
}
.burger span::before{top:-5.5px;}
.burger span::after{top:5.5px;}
@media (min-width:900px){ .burger{display:none;} }

/* 移动端抽屉 */
.drawer{
  position:fixed;inset:var(--nav-h) 0 0 0;z-index:99;
  background:rgba(255,255,255,.96);
  -webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
  padding:16px 20px 40px;transform:translateY(-8px);opacity:0;pointer-events:none;
  transition:opacity .22s ease,transform .22s ease;overflow-y:auto;
}
.drawer.open{opacity:1;transform:none;pointer-events:auto;}
.drawer a{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 4px;font-size:19px;font-weight:600;letter-spacing:-.015em;
  border-bottom:.5px solid var(--separator);color:var(--label);
}
.drawer a:last-of-type{border-bottom:0;}
.drawer a::after{content:"›";color:var(--label-3);font-size:22px;font-weight:400;}
.drawer .drawer-cta{
  margin-top:20px;display:block;text-align:center;padding:15px;border-radius:var(--r-md);
  background:var(--brand);color:#fff;font-weight:600;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  padding:13px 24px;border-radius:99px;border:0;cursor:pointer;
  font-size:16px;font-weight:600;letter-spacing:-.01em;
  transition:transform .18s cubic-bezier(.2,.8,.2,1),box-shadow .18s,background .18s,opacity .18s;
}
.btn:active{transform:scale(.975);}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 2px 10px rgba(222,120,55,.28);}
.btn-primary:hover{box-shadow:0 8px 22px rgba(222,120,55,.34);transform:translateY(-1px);}
.btn-ghost{background:var(--fill);color:var(--label);}
.btn-ghost:hover{background:rgba(120,120,128,.18);}
.btn-white{background:#fff;color:var(--label);box-shadow:var(--shadow-sm);}
.btn-white:hover{box-shadow:var(--shadow-md);}
.btn-lg{padding:16px 30px;font-size:17px;}
.btn-block{width:100%;}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none;}

/* ---------- 卡片 ---------- */
.card{
  background:var(--bg-elevated);border-radius:var(--r-lg);
  box-shadow:var(--shadow-sm);overflow:hidden;
}
.card-pad{padding:20px;}
.grid{display:grid;gap:14px;}
@media (min-width:640px){ .grid-2{grid-template-columns:repeat(2,1fr);} }
@media (min-width:900px){ .grid-3{grid-template-columns:repeat(3,1fr);} .grid-2{grid-template-columns:repeat(2,1fr);} }
@media (min-width:1100px){ .grid-4{grid-template-columns:repeat(4,1fr);} }

/* ---------- 首页 Hero ---------- */
.hero{position:relative;overflow:hidden;background:#fff;}
.hero-bg{
  position:absolute;inset:0;
  background:
    radial-gradient(120% 90% at 88% 8%,rgba(244,185,65,.20) 0%,rgba(244,185,65,0) 58%),
    radial-gradient(90% 80% at 6% 96%,rgba(222,120,55,.14) 0%,rgba(222,120,55,0) 60%),
    linear-gradient(180deg,#FFFFFF 0%,#FFFBF6 100%);
}
/* 注意：这里只覆盖垂直内边距，必须保留 .wrap 的左右 20px 留白。
   早前写成 padding:52px 0 46px 简写，把左右内边距一起清零了，
   导致手机端 hero 文案贴着屏幕边缘（桌面端也与其它区块错位 20px）。 */
.hero-inner{position:relative;padding-top:52px;padding-bottom:46px;}
@media (min-width:900px){ .hero-inner{padding-top:84px;padding-bottom:72px;} }
.hero .badge{
  display:inline-flex;align-items:center;gap:7px;padding:6px 13px;border-radius:99px;
  background:var(--brand-tint);color:var(--brand-deep);
  font-size:13px;font-weight:600;letter-spacing:.01em;margin-bottom:16px;
}
.hero .badge i{width:6px;height:6px;border-radius:50%;background:var(--brand);font-style:normal;}
.hero h1{max-width:16em;}
.hero .lead{margin-top:16px;max-width:34em;color:var(--label-2);font-size:17px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:28px 40px;margin-top:38px;
  padding-top:26px;border-top:.5px solid var(--separator);
}
.hero-stats b{display:block;font-size:26px;font-weight:700;letter-spacing:-.02em;}
.hero-stats span{font-size:13px;color:var(--label-2);}

/* 首页 hero 右侧品牌图形 */
.hero-visual{
  display:none;position:relative;align-items:center;justify-content:center;
}
@media (min-width:900px){
  .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;}
  .hero-visual{display:flex;}
}
/* ---------- 分类筛选 (分段控件) ---------- */
.segmented{
  display:flex;gap:4px;padding:3px;border-radius:11px;background:var(--fill);
  overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch;
}
.segmented::-webkit-scrollbar{display:none;}
.segmented button{
  flex:0 0 auto;padding:7px 15px;border:0;border-radius:8px;background:transparent;
  font-size:14px;font-weight:500;color:var(--label-2);cursor:pointer;white-space:nowrap;
  transition:background .18s,color .18s,box-shadow .18s;
}
.segmented button.on{background:#fff;color:var(--label);font-weight:600;box-shadow:0 1px 3px rgba(0,0,0,.10);}

/* ---------- 产品卡片 ---------- */
.pcard{
  background:var(--bg-elevated);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
  transition:transform .22s cubic-bezier(.2,.8,.2,1),box-shadow .22s;cursor:pointer;
}
.pcard:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);}
.pcard .visual{
  aspect-ratio:16/9;background:#FAF7F3;display:flex;align-items:center;justify-content:center;
  overflow:hidden;position:relative;
}
.pcard .visual img{width:100%;height:100%;object-fit:contain;}
.pcard .visual .ph{
  width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:6px;color:#fff;
}
.pcard .visual .ph b{font-size:28px;font-weight:700;letter-spacing:.02em;text-shadow:0 2px 10px rgba(120,60,0,.22);}
.pcard .visual .ph span{font-size:11px;letter-spacing:.2em;text-transform:uppercase;opacity:.9;}
.pcard .body{padding:14px 16px 16px;display:flex;flex-direction:column;flex:1;}
.pcard .cat{
  font-size:11.5px;font-weight:600;color:var(--brand);letter-spacing:.02em;margin-bottom:6px;
}
.pcard .name{font-size:16px;font-weight:600;letter-spacing:-.014em;line-height:1.35;}
.pcard .desc{
  margin-top:7px;font-size:13.5px;color:var(--label-2);line-height:1.5;flex:1;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.pcard .more{
  margin-top:12px;font-size:13.5px;font-weight:600;color:var(--brand);
  display:inline-flex;align-items:center;gap:3px;
}

/* ---------- 列表行 (联系/规格) ---------- */
.list{background:var(--bg-elevated);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-sm);}
.list-row{
  display:flex;align-items:center;gap:14px;padding:15px 18px;
  border-bottom:.5px solid var(--separator);
}
.list-row:last-child{border-bottom:0;}
.list-row .k{font-size:15px;color:var(--label-2);flex:none;min-width:56px;}
.list-row .v{font-size:15px;font-weight:500;margin-left:auto;text-align:right;word-break:break-all;}
.list-row .v a{color:var(--brand);}

/* ---------- 优势卡片 ---------- */
.feature{
  background:var(--bg-elevated);border-radius:var(--r-lg);padding:22px;
  box-shadow:var(--shadow-sm);height:100%;
}
.feature .ico{
  width:42px;height:42px;border-radius:12px;background:var(--brand-tint);
  display:flex;align-items:center;justify-content:center;margin-bottom:14px;
}
.feature .ico svg{width:21px;height:21px;fill:var(--brand);}
.feature h3{font-size:16px;font-weight:600;margin-bottom:7px;letter-spacing:-.014em;}
.feature p{font-size:14px;color:var(--label-2);line-height:1.55;}

/* ---------- 应用领域 ---------- */
.field-chip{
  display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:99px;
  background:var(--bg-elevated);box-shadow:var(--shadow-sm);font-size:14.5px;font-weight:500;
}
.field-chip i{width:7px;height:7px;border-radius:50%;background:var(--brand);font-style:normal;}

/* ---------- 关于页图文 ---------- */
.prose{max-width:64ch;}
.prose p{font-size:16px;line-height:1.75;color:var(--label-2);margin-bottom:14px;}
.prose p:last-child{margin-bottom:0;}
.prose strong{color:var(--label);font-weight:600;}

.pull{
  border-radius:var(--r-xl);padding:32px 28px;background:var(--brand-grad);color:#fff;
  position:relative;overflow:hidden;box-shadow:0 14px 40px rgba(222,120,55,.24);
}
.pull::after{
  content:"";position:absolute;width:130%;height:80%;right:-30%;bottom:-40%;
  background:radial-gradient(closest-side,rgba(255,255,255,.28),rgba(255,255,255,0) 70%);
}
.pull h3{font-size:20px;font-weight:700;margin-bottom:10px;position:relative;}
.pull .points{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 0;position:relative;}
.pull .points span{
  background:rgba(255,255,255,.20);border:1px solid rgba(255,255,255,.34);
  padding:7px 14px;border-radius:99px;font-size:14px;font-weight:500;
}

/* 时间线 */
.timeline{position:relative;padding-left:26px;}
.timeline::before{content:"";position:absolute;left:5px;top:6px;bottom:6px;width:1.5px;background:var(--separator);}
.timeline .item{position:relative;padding-bottom:26px;}
.timeline .item:last-child{padding-bottom:0;}
.timeline .item::before{
  content:"";position:absolute;left:-26px;top:5px;width:11px;height:11px;border-radius:50%;
  background:#fff;border:2.5px solid var(--brand);
}
.timeline .yr{font-size:13px;font-weight:700;color:var(--brand);letter-spacing:.02em;}
.timeline .tx{font-size:15px;color:var(--label-2);margin-top:3px;line-height:1.6;}

/* ---------- 表单 (留资) ---------- */
.form-card{
  background:var(--bg-elevated);border-radius:var(--r-xl);padding:24px;
  box-shadow:var(--shadow-md);
}
@media (min-width:768px){ .form-card{padding:32px;} }
.field{margin-bottom:18px;}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--label);margin-bottom:7px;}
.field label .req{color:#FF3B30;margin-left:2px;}
.field .hint{font-size:12px;color:var(--label-3);margin-top:6px;}
.input,.select,.textarea{
  width:100%;padding:13px 14px;border-radius:var(--r-md);
  background:#F7F7FA;border:1.5px solid transparent;
  font-size:16px;letter-spacing:-.01em;outline:none;
  transition:border-color .18s,background .18s,box-shadow .18s;
}
.input::placeholder,.textarea::placeholder{color:var(--label-3);}
.input:focus,.select:focus,.textarea:focus{
  background:#fff;border-color:var(--brand);box-shadow:0 0 0 3.5px var(--brand-tint);
}
.input.error,.textarea.error,.select.error{border-color:#FF3B30;background:#FFF5F5;}
.textarea{min-height:104px;resize:vertical;line-height:1.55;}
.select{
  appearance:none;-webkit-appearance:none;cursor:pointer;
  background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23999' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 15px center;background-size:12px;
  padding-right:40px;
}
.err-msg{display:none;font-size:12.5px;color:#FF3B30;margin-top:6px;}
.err-msg.show{display:block;}
.checkbox-row{display:flex;align-items:flex-start;gap:10px;margin-top:6px;}
.checkbox-row input{width:20px;height:20px;margin-top:1px;accent-color:var(--brand);flex:none;}
.checkbox-row label{font-size:13spx;font-weight:400;color:var(--label-2);margin:0;line-height:1.5;}
.checkbox-row label{font-size:13.5px;}

.form-success{
  display:none;text-align:center;padding:28px 8px;
}
.form-success.show{display:block;}
.form-success .tick{
  width:64px;height:64px;border-radius:50%;background:var(--green);
  display:flex;align-items:center;justify-content:center;margin:0 auto 18px;
  animation:pop .4s cubic-bezier(.2,.9,.3,1.3);
}
.form-success .tick svg{width:32px;height:32px;fill:#fff;}
/* 提交失败时的提示图标：换成橙色感叹号，避免"绿色对勾 + 提交未成功"自相矛盾 */
.form-success .tick.warn{background:#FF9F0A;}
.form-success .tick.warn svg{display:none;}
.form-success .tick.warn::after{content:"!";font-size:30px;font-weight:700;color:#fff;line-height:1;}
@keyframes pop{0%{transform:scale(.4);opacity:0;}100%{transform:scale(1);opacity:1;}}
.form-success h3{font-size:22px;font-weight:700;margin-bottom:8px;}
.form-success p{font-size:15px;color:var(--label-2);max-width:34em;margin:0 auto;}
.form-success .recap{
  margin:22px auto 0;max-width:420px;text-align:left;background:var(--bg);
  border-radius:var(--r-md);padding:14px 16px;font-size:13.5px;
}
.form-success .recap div{display:flex;gap:10px;padding:4px 0;}
.form-success .recap span:first-child{color:var(--label-2);min-width:64px;}

/* ---------- CTA 区块 ---------- */
.cta{
  border-radius:var(--r-xl);padding:36px 28px;text-align:center;
  background:linear-gradient(135deg,#2C2C2E 0%,#1C1C1E 100%);color:#fff;
  position:relative;overflow:hidden;
}
.cta::after{
  content:"";position:absolute;width:120%;height:120%;left:-10%;top:-60%;
  background:radial-gradient(closest-side,rgba(244,185,65,.22),rgba(244,185,65,0) 70%);
}
.cta h3{font-size:24px;font-weight:700;margin-bottom:10px;position:relative;letter-spacing:-.02em;}
.cta p{color:rgba(255,255,255,.72);font-size:15.5px;max-width:36em;margin:0 auto 22px;position:relative;}
.cta .actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;position:relative;}

/* ---------- 页脚 ---------- */
.footer{background:#fff;border-top:.5px solid var(--separator);padding:40px 0 30px;margin-top:20px;}
.footer-grid{display:grid;gap:26px;}
@media (min-width:768px){ .footer-grid{grid-template-columns:1.4fr 1fr 1fr;} }
.footer h4{font-size:13.5px;font-weight:600;margin-bottom:12px;letter-spacing:.01em;}
.footer ul{list-style:none;}
.footer li{margin-bottom:9px;}
.footer a,.footer .ft{font-size:14px;color:var(--label-2);}
.footer a:hover{color:var(--brand);}
.footer .bottom{
  margin-top:30px;padding-top:20px;border-top:.5px solid var(--separator);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12.5px;color:var(--label-3);
}

/* ---------- 产品详情 ---------- */
.crumb{display:flex;align-items:center;gap:7px;font-size:13.5px;color:var(--label-2);margin-bottom:18px;flex-wrap:wrap;}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:var(--label-3);}
.detail-head{background:var(--bg-elevated);border-radius:var(--r-xl);padding:24px;box-shadow:var(--shadow-sm);}
@media (min-width:768px){ .detail-head{padding:32px;} }
.detail-head .series{
  display:inline-block;padding:5px 12px;border-radius:99px;background:var(--brand-tint);
  color:var(--brand-deep);font-size:12.5px;font-weight:600;margin-bottom:12px;
}
.detail-head h1{font-size:26px;font-weight:700;letter-spacing:-.02em;line-height:1.25;}
@media (min-width:768px){ .detail-head h1{font-size:32px;} }
.detail-head .tagline{margin-top:12px;font-size:16px;color:var(--label-2);line-height:1.6;}
.detail-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px;}

.spec-table{width:100%;border-collapse:collapse;font-size:14.5px;}
.spec-table th,.spec-table td{
  text-align:left;padding:12px 14px;border-bottom:.5px solid var(--separator);vertical-align:top;
}
.spec-table th{
  font-size:12.5px;font-weight:600;color:var(--label-2);letter-spacing:.02em;
  background:#FAFAFC;white-space:nowrap;
}
.spec-table tr:last-child td{border-bottom:0;}
.spec-table td:first-child{font-weight:600;white-space:nowrap;}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:var(--r-lg);}

.doc-list{display:flex;flex-direction:column;gap:14px;}
.doc-list figure{
  background:var(--bg-elevated);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-sm);
  cursor:zoom-in;position:relative;
}
.doc-list figure img{width:100%;height:auto;}
.doc-list figcaption{
  padding:10px 14px;font-size:12.5px;color:var(--label-3);border-top:.5px solid var(--separator);
  display:flex;justify-content:space-between;gap:10px;
}

/* 图片放大 */
.lightbox{
  position:fixed;inset:0;z-index:200;background:rgba(0,0,0,.92);
  display:none;align-items:center;justify-content:center;padding:20px;
}
.lightbox.open{display:flex;}
.lightbox img{max-width:100%;max-height:100%;border-radius:10px;box-shadow:0 20px 60px rgba(0,0,0,.5);}
.lightbox .close{
  position:absolute;top:18px;right:18px;width:42px;height:42px;border-radius:50%;
  background:rgba(255,255,255,.16);border:0;color:#fff;font-size:20px;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
}

/* ---------- 滚动进场动画 ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s cubic-bezier(.2,.8,.2,1),transform .6s cubic-bezier(.2,.8,.2,1);}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
}

/* ---------- 提示条 ---------- */
.toast{
  position:fixed;left:50%;bottom:28px;transform:translate(-50%,10px);
  background:rgba(28,28,30,.92);color:#fff;font-size:14px;padding:11px 20px;
  border-radius:99px;opacity:0;transition:.25s;pointer-events:none;z-index:300;
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);white-space:nowrap;max-width:90vw;
}
.toast.show{opacity:1;transform:translate(-50%,0);}

/* ---------- 条目列表 (产品特点/适用范围/使用说明) ---------- */
.dot-list{list-style:none;margin:0;padding:0;}
.dot-list li{
  position:relative;padding:0 0 0 22px;margin-bottom:11px;
  font-size:15px;line-height:1.68;color:var(--label-2);
}
.dot-list li:last-child{margin-bottom:0;}
.dot-list li::before{
  content:"";position:absolute;left:2px;top:9px;width:7px;height:7px;border-radius:50%;
  background:var(--brand);opacity:.85;
}
ol.dot-list{counter-reset:xy;}
ol.dot-list li{counter-increment:xy;}
ol.dot-list li::before{
  content:counter(xy);background:none;width:auto;height:auto;top:0;left:0;
  font-size:12.5px;font-weight:700;color:var(--brand);line-height:1.85;
}
ol.dot-list li{padding-left:20px;}

/* ---------- 表单区两栏 ---------- */
.form-grid{display:grid;gap:0 18px;}
@media (min-width:700px){ .form-grid.two{grid-template-columns:1fr 1fr;} }

/* ---------- 联系方式卡 ---------- */
.contact-card{
  background:var(--bg-elevated);border-radius:var(--r-xl);padding:24px;box-shadow:var(--shadow-sm);
}
.contact-card .row{
  display:flex;gap:14px;padding:13px 0;border-bottom:.5px solid var(--separator);
}
.contact-card .row:last-child{border-bottom:0;}
.contact-card .ic{
  width:38px;height:38px;border-radius:11px;background:var(--brand-tint);
  display:flex;align-items:center;justify-content:center;flex:none;
}
.contact-card .ic svg{width:19px;height:19px;fill:var(--brand);}
.contact-card .k{font-size:12.5px;color:var(--label-2);margin-bottom:2px;}
.contact-card .v{font-size:15.5px;font-weight:600;letter-spacing:-.01em;word-break:break-all;}
.contact-card .v a{color:var(--brand);}
.copy-btn{
  margin-left:auto;align-self:center;border:0;background:var(--fill);cursor:pointer;
  padding:6px 11px;border-radius:99px;font-size:12px;color:var(--label-2);white-space:nowrap;
}
.copy-btn:hover{background:rgba(120,120,128,.2);color:var(--label);}

/* ---------- 留资页 hero ---------- */
.lead-hero{
  background:linear-gradient(135deg,#2C2C2E 0%,#1C1C1E 100%);
  color:#fff;border-radius:var(--r-xl);padding:32px 26px;position:relative;overflow:hidden;
}
.lead-hero::after{
  content:"";position:absolute;width:120%;height:140%;right:-30%;top:-60%;
  background:radial-gradient(closest-side,rgba(244,185,65,.24),rgba(244,185,65,0) 70%);
}
.lead-hero h1{font-size:26px;font-weight:700;letter-spacing:-.02em;margin-bottom:10px;position:relative;}
.lead-hero p{color:rgba(255,255,255,.74);font-size:15px;max-width:44em;position:relative;line-height:1.65;}
.lead-hero .pts{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;position:relative;}
.lead-hero .pts span{
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);
  padding:6px 13px;border-radius:99px;font-size:13px;
}
@media (min-width:768px){ .lead-hero{padding:44px 40px;} .lead-hero h1{font-size:32px;} }

/* ---------- 实拍图 ---------- */
.hero-photo{
  width:100%;height:auto;border-radius:var(--r-xl);
  box-shadow:0 18px 50px rgba(0,0,0,.14);
}

.photo{
  margin:0;border-radius:var(--r-lg);overflow:hidden;background:var(--bg-elevated);
  box-shadow:var(--shadow-sm);aspect-ratio:4/3;cursor:zoom-in;
  transition:transform .22s cubic-bezier(.2,.8,.2,1),box-shadow .22s;
}
.photo:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);}
.photo img{width:100%;height:100%;object-fit:cover;display:block;}

/* 相册为空时不占位 */
#about-gallery:empty{display:none;}

/* ---------- 品牌 Logo ---------- */
.logo-img{
  height:36px;width:auto;display:block;border-radius:9px;flex:none;
  box-shadow:0 1px 5px rgba(253,136,21,.28);
}
.footer .logo-img{height:40px;border-radius:10px;}

/* 首页主视觉的品牌卡片 */
.hero-logo-card{
  width:100%;max-width:420px;background:#fff;border-radius:var(--r-xl);
  padding:24px;display:flex;flex-direction:column;align-items:center;gap:16px;
  box-shadow:0 18px 50px rgba(222,120,55,.16), 0 2px 8px rgba(0,0,0,.05);
}
.hero-logo-card img{width:100%;height:auto;border-radius:var(--r-md);display:block;}
.hero-logo-note{
  font-size:13px;color:var(--label-2);text-align:center;letter-spacing:.01em;line-height:1.5;
}

/* ---------- 产品应用案例 ---------- */
.case{
  margin:0;background:var(--bg-elevated);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--shadow-sm);cursor:zoom-in;
  transition:transform .22s cubic-bezier(.2,.8,.2,1),box-shadow .22s;
}
.case:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);}
.case img{
  width:100%;aspect-ratio:4/3;object-fit:contain;display:block;background:#F7F7FA;
}
.case figcaption{padding:11px 14px;border-top:.5px solid var(--separator);}
.case figcaption b{display:block;font-size:13.5px;font-weight:600;color:var(--label);margin-bottom:2px;}

/* ==========================================================================
   窄屏与详情页修正
   ========================================================================== */

/* 1) 首页 H1 的孤字问题
   H1 用 <br> 固定分成两行，第一行「专注丝印与移印油墨的」在 34px 下需要约 340px，
   iPhone SE（320px，可用宽仅 280px）放不下，会被拆出孤字「墨的」。
   窄屏降低字号，让 <br> 分好的两行各自成立。 */
@media (max-width:360px){ .hero h1{font-size:27px;} }

/* 2) 首页四个统计数字在窄屏会折成 3+1，改成整齐的 2×2 */
@media (max-width:639px){
  .hero-stats{display:grid;grid-template-columns:1fr 1fr;gap:22px 20px;}
}

/* 3) 导航 Logo
   .logo 里的文字不能换行，否则「ZING SCREEN PRINTING」会折成两行；
   英文副标题在窄屏直接隐藏 —— logo 图形本身已经含「ZING Screen Printing」，窄屏重复且拥挤。 */
.logo{white-space:nowrap;}
@media (max-width:520px){ .logo .sub{display:none;} }

/* 4) 产品详情页头图：桌面左文右图，手机图在上 */
.detail-head{display:grid;gap:20px;}
.detail-photo{width:100%;height:auto;display:block;border-radius:var(--r-lg);order:-1;}
@media (min-width:768px){
  .detail-head{grid-template-columns:1fr 340px;align-items:center;gap:34px;}
  .detail-photo{order:0;}
}
.case figcaption span{font-size:12.5px;color:var(--label-2);line-height:1.5;}