/* ============================================================
   Yoho Industrial — SEO 备用站
   单一 CSS 文件，无框架依赖
   ============================================================ */

:root {
  --brand: #0f5f8f;
  --brand-dark: #0a4568;
  --brand-light: #e8f2f9;
  --accent: #f0821e;
  --ink: #1a2634;
  --ink-2: #46586b;
  --ink-3: #78899b;
  --line: #dfe6ed;
  --bg: #ffffff;
  --bg-soft: #f6f9fb;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(16, 40, 64, .06), 0 6px 20px rgba(16, 40, 64, .05);
  --shadow-h: 0 2px 6px rgba(16, 40, 64, .08), 0 12px 28px rgba(16, 40, 64, .09);
  --max: 1200px;
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--brand); text-decoration: none; }
a:hover { color: var(--brand-dark); text-decoration: underline; }

h1, h2, h3, h4 { line-height: 1.25; margin: 0 0 .6em; font-weight: 600; color: var(--ink); }
h1 { font-size: 2.1rem; }
h2 { font-size: 1.6rem; }
h3 { font-size: 1.18rem; }
p { margin: 0 0 1em; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* ---------- 顶栏 ---------- */
.topbar { background: var(--brand-dark); color: #cfe3f0; font-size: .82rem; }
.topbar .wrap { display: flex; flex-wrap: wrap; gap: 6px 22px; padding-top: 8px; padding-bottom: 8px; }
.topbar a { color: #e6f2fa; }
.topbar strong { color: #fff; font-weight: 600; }

/* ---------- 头部 ---------- */
.site-head {
  position: sticky; top: 0; z-index: 50;
  background: #fff; border-bottom: 1px solid var(--line);
  box-shadow: 0 1px 4px rgba(16, 40, 64, .05);
}
.head-in { display: flex; align-items: center; gap: 28px; padding-top: 14px; padding-bottom: 14px; }

.brand { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
.logo-img {
  height: 52px; width: auto; object-fit: contain; flex-shrink: 0;
}
.brand-mark {
  width: 44px; height: 44px; border-radius: 9px;
  background: linear-gradient(135deg, var(--brand) 0%, #1583bd 100%);
  color: #fff; font-weight: 700; font-size: 1.05rem;
  display: flex; align-items: center; justify-content: center;
  letter-spacing: -.5px;
}
.brand-text { min-width: 0; }
.brand-text b { display: block; font-size: 1.02rem; color: var(--ink); letter-spacing: -.2px; line-height: 1.25; }
.brand-text span { display: block; font-size: .72rem; color: var(--ink-3); letter-spacing: .04em; text-transform: uppercase; }

.nav { margin-left: auto; }
.nav > ul {
  display: flex; align-items: center; gap: 2px;
  list-style: none; margin: 0; padding: 0;
}
.nav > ul > li { position: relative; }
.nav > ul > li > a {
  display: flex; align-items: center; gap: 6px;
  padding: 9px 14px; border-radius: 7px;
  color: var(--ink-2); font-size: .93rem; font-weight: 500;
  white-space: nowrap;
  transition: background .16s, color .16s;
}
.nav > ul > li > a:hover { background: var(--brand-light); color: var(--brand-dark); text-decoration: none; }
.nav > ul > li > a.on { background: var(--brand-light); color: var(--brand-dark); font-weight: 600; }

/* 下拉箭头 */
.caret {
  width: 0; height: 0; display: inline-block;
  border: 4px solid transparent; border-top-color: currentColor;
  opacity: .55; transform: translateY(2px);
  transition: transform .18s, opacity .18s;
}
.has-kids:hover > a .caret { transform: translateY(2px) rotate(180deg); opacity: .8; }

/* 产品下拉面板 */
.nav .sub {
  position: absolute; left: 0; top: calc(100% + 8px);
  width: 316px; padding: 7px;
  background: #fff; border: 1px solid var(--line); border-radius: 11px;
  box-shadow: var(--shadow-h);
  opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: opacity .18s, transform .18s, visibility .18s;
}
.nav .sub::before {
  content: ''; position: absolute; top: -8px; left: 0; right: 0; height: 8px;
}
.has-kids:hover .sub, .has-kids:focus-within .sub {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.nav .sub ul { list-style: none; margin: 0; padding: 0; }
.nav .sub li + li { border-top: 1px solid #f0f4f7; }
.nav .sub a {
  display: flex; align-items: baseline; justify-content: space-between; gap: 12px;
  padding: 10px 12px; border-radius: 7px;
  color: var(--ink-2); font-size: .9rem; font-weight: 500;
}
.nav .sub a b { font-weight: 500; line-height: 1.35; }
.nav .sub a .n { font-size: .76rem; color: var(--ink-3); flex-shrink: 0; }
.nav .sub a:hover { background: var(--brand-light); color: var(--brand-dark); text-decoration: none; }
.nav .sub a:hover .n { color: var(--brand); }
.nav .sub a.all {
  font-weight: 600; color: var(--brand);
  border-radius: 7px;
  background: #f4f9fd;
}

.nav > ul > li.cta { margin-left: 8px; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 22px; border-radius: 8px;
  background: var(--accent); color: #fff;
  font-weight: 600; font-size: .94rem;
  border: 0; cursor: pointer;
  transition: background .16s, transform .16s;
}
.btn:hover { background: #d9700f; color: #fff; text-decoration: none; transform: translateY(-1px); }
.btn-ghost { background: #fff; color: var(--brand); border: 1.5px solid var(--brand); }
.btn-ghost:hover { background: var(--brand-light); color: var(--brand-dark); }

.menu-btn {
  display: none; margin-left: auto;
  background: #fff; border: 1px solid var(--line); border-radius: 8px;
  padding: 9px 12px; font-size: 1.1rem; cursor: pointer; color: var(--ink);
}

/* ---------- Hero ---------- */
.hero { position: relative; background: linear-gradient(120deg, #0a4568 0%, #0f5f8f 55%, #1479ad 100%); color: #fff; overflow: hidden; }
.hero::after {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(900px 300px at 88% 12%, rgba(255,255,255,.12), transparent 62%),
    radial-gradient(600px 260px at 8% 90%, rgba(255,255,255,.08), transparent 60%);
  pointer-events: none;
}
.hero-in {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1.15fr .85fr;
  gap: 44px; align-items: center;
  padding-top: 66px; padding-bottom: 66px;
}
.hero h1 { color: #fff; font-size: 2.6rem; letter-spacing: -.5px; margin-bottom: .45em; }
.hero .lead { font-size: 1.08rem; color: #d5e9f5; max-width: 56ch; margin-bottom: 1.6em; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 2em; }
.hero-stats { display: flex; gap: 34px; flex-wrap: wrap; }
.hero-stats b { display: block; font-size: 1.7rem; line-height: 1.1; }
.hero-stats span { font-size: .82rem; color: #b8d6e8; }
.hero-media { border-radius: 14px; overflow: hidden; box-shadow: 0 22px 50px rgba(0,0,0,.3); }
.hero-media img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }

/* ---------- 通用区块 ---------- */
.section { padding: 66px 0; }
.section-alt { background: var(--bg-soft); }
.sec-head { max-width: 760px; margin-bottom: 40px; }
.sec-head .eyebrow {
  display: inline-block; margin-bottom: 10px; padding: 4px 12px;
  background: var(--brand-light); color: var(--brand-dark);
  border-radius: 20px; font-size: .78rem; font-weight: 600;
  letter-spacing: .06em; text-transform: uppercase;
}
.sec-head h2 { font-size: 1.9rem; letter-spacing: -.3px; }
.sec-head p { color: var(--ink-2); font-size: 1.02rem; margin-bottom: 0; }

/* ---------- 分类卡 ---------- */
.cat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 22px; }
.cat-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow);
  transition: transform .18s, box-shadow .18s, border-color .18s;
  display: flex; flex-direction: column;
}
.cat-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-h); border-color: #c4d8e6; text-decoration: none; }
.cat-card .thumb { aspect-ratio: 16/10; overflow: hidden; background: var(--bg-soft); }
.cat-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s; }
.cat-card:hover .thumb img { transform: scale(1.04); }
.cat-card .body { padding: 18px 20px 20px; flex: 1; display: flex; flex-direction: column; }
.cat-card h3 { font-size: 1.1rem; margin-bottom: .35em; }
.cat-card .cn { font-size: .84rem; color: var(--ink-3); margin-bottom: .6em; }
.cat-card p { font-size: .9rem; color: var(--ink-2); margin-bottom: 14px; flex: 1; }
.cat-card .count { font-size: .82rem; font-weight: 600; color: var(--brand); }
.cat-card .count::after { content: ' →'; }

/* ---------- 产品卡 ---------- */
.prod-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(262px, 1fr)); gap: 24px; }
.prod-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow);
  transition: transform .18s, box-shadow .18s, border-color .18s;
  display: flex; flex-direction: column;
}
.prod-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-h); border-color: #c4d8e6; text-decoration: none; }
.prod-card .thumb { aspect-ratio: 4/3; overflow: hidden; background: var(--bg-soft); position: relative; }
.prod-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s; }
.prod-card:hover .thumb img { transform: scale(1.045); }
.prod-card .body { padding: 15px 17px 17px; flex: 1; display: flex; flex-direction: column; }
.prod-card h3 { font-size: .99rem; line-height: 1.4; margin-bottom: .5em; }
.prod-card h3 a { color: var(--ink); }
.prod-card:hover h3 a { color: var(--brand-dark); }
.prod-card .brief {
  font-size: .85rem; color: var(--ink-2); margin-bottom: 12px; flex: 1;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.prod-card .meta { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.tag { display: inline-block; padding: 3px 10px; border-radius: 14px; background: var(--brand-light); color: var(--brand-dark); font-size: .76rem; font-weight: 600; }
.ask { font-size: .84rem; font-weight: 600; color: var(--accent); }
.prod-card:hover .ask::after { content: ' →'; }

/* ---------- 面包屑 ---------- */
.crumb { background: var(--bg-soft); border-bottom: 1px solid var(--line); font-size: .85rem; }
.crumb .wrap { padding-top: 11px; padding-bottom: 11px; }
.crumb ol { display: flex; flex-wrap: wrap; gap: 7px; list-style: none; margin: 0; padding: 0; color: var(--ink-3); }
.crumb li + li::before { content: '/'; margin-right: 7px; color: #b6c4d1; }
.crumb a { color: var(--ink-2); }
.crumb [aria-current] { color: var(--ink); font-weight: 600; }

/* ---------- 页头 ---------- */
.page-head { background: var(--bg-soft); border-bottom: 1px solid var(--line); padding: 42px 0 38px; }
.page-head h1 { font-size: 1.95rem; margin-bottom: .3em; }
.page-head .sub { color: var(--ink-2); font-size: 1.02rem; max-width: 78ch; margin-bottom: 0; }

/* ---------- 产品详情 ---------- */
.pd { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.gallery-main { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; box-shadow: var(--shadow); }
.gallery-main img { width: 100%; aspect-ratio: 4/3; object-fit: contain; background: #fff; }
.thumbs { display: flex; gap: 10px; margin-top: 12px; flex-wrap: wrap; }
.thumbs button {
  width: 82px; height: 68px; padding: 0; cursor: pointer;
  border: 2px solid var(--line); border-radius: 7px; overflow: hidden; background: #fff;
  transition: border-color .16s;
}
.thumbs button img { width: 100%; height: 100%; object-fit: cover; }
.thumbs button:hover { border-color: var(--brand); }
.thumbs button[aria-current="true"] { border-color: var(--accent); }

.pd-info h1 { font-size: 1.85rem; margin-bottom: .4em; }
.pd-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.pd-meta .tag { background: #fff; border: 1px solid var(--line); color: var(--ink-2); }
.pd-meta .tag.hl { background: var(--accent); color: #fff; border-color: var(--accent); }
.pd-summary {
  background: var(--bg-soft); border-left: 3px solid var(--brand);
  border-radius: 0 8px 8px 0; padding: 16px 18px;
  color: var(--ink-2); font-size: .97rem; margin-bottom: 22px;
}
.pd-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 26px; }
.pd-cta .btn { flex: 1; min-width: 150px; justify-content: center; }

.kv { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; margin-bottom: 22px; }
.kv h2 { font-size: 1.08rem; padding: 13px 18px; background: var(--bg-soft); border-bottom: 1px solid var(--line); margin: 0; }
.kv table { width: 100%; border-collapse: collapse; font-size: .91rem; }
.kv th, .kv td { padding: 10px 18px; text-align: left; border-bottom: 1px solid #eef2f6; vertical-align: top; }
.kv tr:last-child th, .kv tr:last-child td { border-bottom: 0; }
.kv tr:nth-child(even) { background: #fbfdfe; }
.kv th { font-weight: 600; color: var(--ink); width: 40%; }
.kv th .u { font-weight: 400; color: var(--ink-3); font-size: .84rem; }
.kv td { color: var(--ink-2); }

.blk { margin-bottom: 34px; }
.blk h2 { font-size: 1.35rem; padding-bottom: 10px; border-bottom: 2px solid var(--brand-light); }
.blk .prose { color: var(--ink-2); }
.blk .prose p { margin-bottom: .9em; }

/* ---------- 优势 ---------- */
.feat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 22px; }
.feat { padding: 26px 22px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.feat .ic {
  width: 46px; height: 46px; border-radius: 10px; margin-bottom: 15px;
  background: var(--brand-light); color: var(--brand-dark);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem; font-weight: 700;
}
.feat h3 { font-size: 1.04rem; margin-bottom: .45em; }
.feat p { font-size: .91rem; color: var(--ink-2); margin: 0; }

/* ---------- CTA ---------- */
.cta-band { background: linear-gradient(120deg, #0a4568 0%, #0f5f8f 100%); color: #fff; padding: 52px 0; }
.cta-band .wrap { display: flex; flex-wrap: wrap; align-items: center; gap: 26px; justify-content: space-between; }
.cta-band h2 { color: #fff; font-size: 1.6rem; margin-bottom: .3em; }
.cta-band p { color: #cfe3f0; margin: 0; }

/* ---------- 表单 ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: .87rem; font-weight: 600; color: var(--ink-2); }
.field input, .field textarea, .field select {
  padding: 11px 13px; border: 1px solid var(--line); border-radius: 8px;
  font: inherit; font-size: .94rem; background: #fff; color: var(--ink);
  transition: border-color .16s, box-shadow .16s;
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(15, 95, 143, .12);
}
.field textarea { min-height: 128px; resize: vertical; }
.form-note { font-size: .85rem; color: var(--ink-3); margin-top: 14px; }

/* 蜜罐字段：正常用户不可见，机器人会填写 */
.hp {
  position: absolute !important;
  left: -9999px !important;
  width: 1px; height: 1px;
  overflow: hidden; opacity: 0;
}

/* ---------- 页脚 ---------- */
.site-foot { background: #0d1f2d; color: #9db4c4; font-size: .9rem; }
.foot-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.3fr; gap: 34px; padding-top: 48px; padding-bottom: 34px; }
.site-foot h3 { color: #fff; font-size: 1rem; margin-bottom: 15px; }
.site-foot ul { list-style: none; margin: 0; padding: 0; }
.site-foot li { margin-bottom: 8px; }
.site-foot a { color: #9db4c4; }
.site-foot a:hover { color: #fff; }
.site-foot .brand-text b { color: #fff; }
.foot-contact li { display: flex; gap: 9px; align-items: flex-start; }
.foot-contact .k { color: #64879d; flex-shrink: 0; min-width: 62px; }
.foot-bottom {
  border-top: 1px solid #1e374a;
  padding-top: 18px; padding-bottom: 22px;
  display: flex; flex-wrap: wrap; gap: 12px;
  justify-content: space-between; font-size: .84rem; color: #64879d;
}
.foot-bottom a { color: #64879d; }

/* ---------- 杂项 ---------- */
.pager { display: flex; justify-content: center; gap: 8px; margin-top: 46px; flex-wrap: wrap; }
.pager a, .pager span {
  min-width: 42px; padding: 9px 13px; text-align: center;
  border: 1px solid var(--line); border-radius: 8px; background: #fff;
  color: var(--ink-2); font-size: .92rem;
}
.pager a:hover { border-color: var(--brand); color: var(--brand-dark); text-decoration: none; }
.pager .on { background: var(--brand); border-color: var(--brand); color: #fff; font-weight: 600; }
.pager .off { opacity: .45; }

.filter-bar { display: flex; flex-wrap: wrap; gap: 10px; padding: 18px 0 26px; margin-bottom: 6px; }
.filter-bar a {
  padding: 8px 16px; border: 1px solid var(--line); border-radius: 20px;
  background: #fff; color: var(--ink-2); font-size: .88rem; font-weight: 500;
}
.filter-bar a:hover { border-color: var(--brand); color: var(--brand-dark); text-decoration: none; }
.filter-bar a.on { background: var(--brand); border-color: var(--brand); color: #fff; }

.side-list { list-style: none; margin: 0; padding: 0; }
.side-list li { border-bottom: 1px solid var(--line); }
.side-list a { display: flex; gap: 12px; padding: 13px 0; color: var(--ink-2); font-size: .93rem; }
.side-list a:hover { color: var(--brand-dark); text-decoration: none; }
.side-list img { width: 62px; height: 50px; object-fit: cover; border-radius: 6px; flex-shrink: 0; background: var(--bg-soft); }
.side-list b { font-weight: 500; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

.two-col { display: grid; grid-template-columns: 1fr 300px; gap: 44px; align-items: start; }
.aside-box {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px; box-shadow: var(--shadow); margin-bottom: 22px;
}
.aside-box h3 { font-size: 1rem; padding-bottom: 11px; border-bottom: 1px solid var(--line); margin-bottom: 13px; }
.aside-box .btn { width: 100%; justify-content: center; }
.aside-box dl { margin: 0; font-size: .9rem; }
.aside-box dl > div { display: flex; gap: 10px; padding: 7px 0; border-bottom: 1px dashed var(--line); }
.aside-box dl > div:last-child { border-bottom: 0; }
.aside-box dt { color: var(--ink-3); flex-shrink: 0; min-width: 66px; }
.aside-box dd { margin: 0; color: var(--ink-2); }

.notfound { text-align: center; padding: 90px 0; }
.notfound h1 { font-size: 5rem; color: var(--brand-light); margin-bottom: .1em; line-height: 1; }
.notfound p { color: var(--ink-2); font-size: 1.08rem; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .hero-in { grid-template-columns: 1fr; gap: 34px; }
  .hero h1 { font-size: 2.15rem; }
  .pd { grid-template-columns: 1fr; gap: 34px; }
  .two-col { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .logo-img { height: 44px; }
  .brand-text b { font-size: .95rem; }
}

@media (max-width: 768px) {
  .menu-btn { display: block; }
  .head-in { gap: 12px; }
  .logo-img { height: 38px; }
  .brand-text b { font-size: .88rem; }
  .brand-text span { font-size: .62rem; }
  .nav {
    display: none; position: absolute; left: 0; right: 0; top: 100%;
    background: #fff; border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-h); padding: 10px 20px 16px;
    max-height: 78vh; overflow-y: auto;
  }
  .nav.open { display: block; }
  .nav > ul { flex-direction: column; align-items: stretch; gap: 0; }
  .nav > ul > li { border-bottom: 1px solid var(--line); }
  .nav > ul > li > a { padding: 13px 4px; border-radius: 0; justify-content: space-between; }
  .nav > ul > li.cta { border-bottom: 0; padding: 14px 0 4px; margin-left: 0; }
  .nav > ul > li.cta > a { justify-content: center; }

  /* 移动端下拉：默认收起，点击 Products 展开 */
  .nav .sub {
    position: static; width: auto;
    opacity: 1; visibility: visible; transform: none;
    box-shadow: none; border: 0; background: transparent;
    padding: 0 0 10px 14px;
    display: none;
  }
  .nav > ul > li.has-kids.open .sub { display: block; }
  .nav > ul > li.has-kids.open > a .caret { transform: translateY(2px) rotate(180deg); }
  .nav .sub li + li { border-top: 1px solid #f0f4f7; }
  .nav .sub a { padding: 10px 4px; }
  .nav .sub a b { font-weight: 500; }

  .section { padding: 48px 0; }
  .hero-in { padding-top: 44px; padding-bottom: 44px; }
  .hero h1 { font-size: 1.85rem; }
  .hero-stats { gap: 22px; }
  .hero-stats b { font-size: 1.4rem; }
  .form-grid { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr; gap: 26px; }
  .cta-band .wrap { flex-direction: column; align-items: flex-start; }
  .sec-head h2 { font-size: 1.55rem; }
  .kv th { width: 46%; }
}

@media (max-width: 480px) {
  .kv th, .kv td { padding: 9px 12px; font-size: .86rem; }
  .pd-cta .btn { min-width: 100%; }
}

@media print {
  .site-head, .site-foot, .cta-band, .pager, .thumbs, .btn, .topbar { display: none; }
  body { font-size: 12pt; color: #000; }
  a { color: #000; text-decoration: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
  html { scroll-behavior: auto; }
}

:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}