/* ==========================================================================
   坤鹏润滑油 V2 — 工业机械风（参照五金机械类模板：橙黄 #ffae00 + 深灰）
   设计：方正紧凑 / 小圆角 / 强对比 / 移动优先
   ========================================================================== */

/* ---------- 1. 变量 ---------- */
:root {
  --gold: #ffae00;
  --gold-2: #e89c00;
  --gold-soft: #fff6e0;
  --dark: #26292c;
  --dark-2: #34383c;
  --ink: #4b4b4b;
  --ink-2: #6b6b6b;
  --ink-3: #979797;
  --line: #eaeaea;
  --line-2: #e1e1e1;
  --bg: #ffffff;
  --bg-soft: #f8f8f8;
  --radius: 3px;
  --wrap: 1200px;
  --header-h: 78px;
  --shadow: 0 4px 16px rgba(0, 0, 0, .07);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, .13);
}

/* ---------- 2. 基础 ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 12px); }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "微软雅黑", "Source Han Sans SC", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
  background: var(--bg);
  overflow-x: hidden;
}
img, svg { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { margin: 0; line-height: 1.35; font-weight: 700; }
p { margin: 0 0 1em; }
button, input, textarea, select { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }

/* ---------- 3. 布局 ---------- */
.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 15px; }
.section { padding: 66px 0; }
.section--soft { background: var(--bg-soft); }
.section--dark { background: var(--dark); color: #cfd3d6; }
.section--dark .sec-title { color: #fff; }
.section--dark .sec-en { color: var(--gold); }
.section--dark .sec-sub { color: #9aa0a5; }

/* 板块标题（模板风格：英文小字 + 中文大字 + 橙黄短横线） */
.sec-head { text-align: center; margin-bottom: 42px; }
.sec-en {
  font-size: 12px; letter-spacing: .22em; text-transform: uppercase;
  color: var(--ink-3); font-weight: 700; margin-bottom: 8px;
}
.sec-title { font-size: clamp(23px, 3vw, 30px); color: #2b2f33; letter-spacing: .02em; }
.sec-title::after {
  content: ""; display: block; width: 46px; height: 3px;
  background: var(--gold); margin: 14px auto 0;
}
.sec-sub { color: var(--ink-2); margin-top: 14px; font-size: 15px; }
.sec-head--left { text-align: left; }
.sec-head--left .sec-title::after { margin-left: 0; }

/* ---------- 4. 顶部条 ---------- */
.topbar { background: var(--dark); color: #9aa0a5; font-size: 13px; border-bottom: 1px solid #36393d; }
.topbar .wrap {
  min-height: 40px; display: flex; align-items: center;
  justify-content: space-between; gap: 12px; flex-wrap: wrap;
}
.topbar .slogan { letter-spacing: .02em; }
.topbar .tel { color: var(--gold); font-weight: 700; font-size: 14px; }
.topbar .tel:hover { color: #ffd066; }

/* ---------- 5. Header ---------- */
.header { background: #fff; border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 50; }
.header .wrap {
  height: var(--header-h); display: flex; align-items: center;
  justify-content: space-between; gap: 16px;
}
.brand { display: flex; align-items: center; gap: 12px; min-width: 0; }
.brand__logo { width: 62px; height: 40px; flex: 0 0 62px; object-fit: contain; }
.brand__text { display: flex; flex-direction: column; min-width: 0; line-height: 1.3; }
.brand__name {
  font-size: 15px; font-weight: 800; color: #2b2f33;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.brand__en {
  font-size: 10.5px; color: var(--ink-3); letter-spacing: .01em;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.nav { display: flex; align-items: center; gap: 2px; }
.nav a {
  padding: 10px 15px; font-size: 15px; color: #2b2f33; font-weight: 500;
  position: relative; white-space: nowrap; transition: color .2s;
}
.nav a:hover { color: var(--gold-2); }
.nav a.is-active { color: var(--gold-2); font-weight: 700; }
.nav a.is-active::after {
  content: ""; position: absolute; left: 15px; right: 15px; bottom: 4px;
  height: 2px; background: var(--gold);
}
.nav__cta {
  background: var(--gold); color: #26292c !important; font-weight: 800 !important;
  margin-left: 8px; padding: 10px 20px !important; border-radius: var(--radius);
}
.nav__cta:hover { background: var(--gold-2); color: #000 !important; }
.nav__cta::after { display: none !important; }

.burger {
  display: none; width: 44px; height: 44px; border: 1px solid var(--line);
  background: #fff; cursor: pointer; padding: 0; border-radius: var(--radius);
}
.burger span { display: block; width: 20px; height: 2px; margin: 4px auto; background: #2b2f33; transition: .25s; }
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- 6. 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 46px; padding: 11px 26px; border-radius: var(--radius);
  border: 1px solid transparent; font-weight: 700; font-size: 14.5px;
  cursor: pointer; transition: .22s; letter-spacing: .02em;
}
.btn--primary { background: var(--gold); color: #26292c; }
.btn--primary:hover { background: var(--gold-2); transform: translateY(-2px); box-shadow: 0 8px 18px rgba(255, 174, 0, .35); }
.btn--ghost { border-color: rgba(255, 255, 255, .5); color: #fff; }
.btn--ghost:hover { background: rgba(255, 255, 255, .12); transform: translateY(-2px); }
.btn--line { border-color: #d5d5d5; color: #2b2f33; }
.btn--line:hover { background: var(--gold); border-color: var(--gold); color: #26292c; }

/* ---------- 7. Hero（模板风格：全宽深色 banner，左侧大字） ---------- */
.hero {
  position: relative; background: var(--dark); color: #fff; overflow: hidden;
}
.hero__bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .70; }
.hero::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(38, 41, 44, .78) 0%, rgba(38, 41, 44, .10) 35%, rgba(38, 41, 44, .10) 65%, rgba(38, 41, 44, .78) 100%),
    linear-gradient(180deg, rgba(38, 41, 44, 0) 0%, rgba(38, 41, 44, 0) 55%, rgba(38, 41, 44, .55) 100%);
}
.hero h1, .hero__sub, .hero__lead, .hero__actions { text-shadow: 0 2px 14px rgba(0, 0, 0, .55); }
.hero .wrap { position: relative; z-index: 2; padding: 92px 15px 100px; }
.hero__inner { max-width: 690px; }
.hero__eyebrow {
  display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: .18em;
  color: var(--gold); margin-bottom: 16px; text-transform: uppercase;
}
.hero h1 { font-size: clamp(27px, 4.6vw, 44px); line-height: 1.24; margin-bottom: 8px; }
.hero h1 .h1-top {
  display: block; font-size: .58em; font-weight: 600; color: #d8dcdf;
  letter-spacing: .06em; margin-bottom: 8px;
}
.hero h1 .h1-main { display: block; }
.hero h1 .h1-main .hl { color: var(--gold); }
.hero__sub {
  font-size: clamp(15px, 1.8vw, 19px); color: #d8dcdf; font-weight: 500;
  margin-bottom: 18px; letter-spacing: .04em;
}
.hero__lead { color: #b9bfc4; font-size: 15.5px; max-width: 620px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

/* Hero 下方数据条 */
.hero-stats { background: var(--gold); color: #26292c; }
.hero-stats .wrap { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; padding: 0 15px; }
.hero-stat { text-align: center; padding: 18px 8px; border-right: 1px solid rgba(38, 41, 44, .18); }
.hero-stat:last-child { border-right: 0; }
.hero-stat__num { font-size: clamp(19px, 2.3vw, 27px); font-weight: 800; line-height: 1.2; }
.hero-stat__num em { font-style: normal; font-size: .58em; margin-left: 2px; }
.hero-stat__label { font-size: 13px; font-weight: 600; margin-top: 2px; opacity: .82; }

/* ---------- 8. 服务特点（模板 6 宫格） ---------- */
.grid { display: grid; gap: 24px; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }

.service-item {
  background: #fff; border: 1px solid var(--line); padding: 30px 24px;
  transition: .25s; height: 100%; position: relative; overflow: hidden;
}
.service-item::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: var(--gold); transform: scaleY(0); transform-origin: top; transition: .25s;
}
.service-item:hover { border-color: transparent; box-shadow: var(--shadow-lg); }
.service-item:hover::before { transform: scaleY(1); }
.icon-wrap {
  width: 58px; height: 58px; background: var(--gold-soft); color: var(--gold-2);
  display: grid; place-items: center; margin-bottom: 16px; border-radius: var(--radius);
  transition: .25s;
}
.service-item:hover .icon-wrap { background: var(--gold); color: #26292c; }
.service-item h3 { font-size: 17px; color: #2b2f33; margin-bottom: 10px; }
.service-item p { font-size: 14.5px; color: var(--ink-2); margin: 0; }

/* ---------- 9. 产品卡（模板 effect-zoe 风格） ---------- */
.project-item {
  position: relative; overflow: hidden; background: #fff;
  border: 1px solid var(--line); border-radius: var(--radius);
}
.project-item .thumb { overflow: hidden; position: relative; aspect-ratio: 16 / 9; background: var(--bg-soft); }
.project-item .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .45s ease; }
.project-item:hover .thumb img { transform: scale(1.08); }
.project-item .thumb::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(38, 41, 44, .5));
  opacity: 0; transition: .3s;
}
.project-item:hover .thumb::after { opacity: 1; }
.project-item .body { padding: 18px 20px 22px; border-top: 1px solid var(--line); }
.project-item h3 { font-size: 16.5px; color: #2b2f33; transition: .2s; }
.project-item:hover h3 { color: var(--gold-2); }
.project-item .desc { font-size: 14px; color: var(--ink-2); margin: 8px 0 0; }
.project-item .more {
  display: inline-block; margin-top: 12px; font-size: 13.5px; font-weight: 700;
  color: var(--gold-2); letter-spacing: .02em;
}
.project-item .more::after { content: " →"; }
.project-item:hover .more { color: #26292c; }

/* ---------- 10. 通用类型（模板风格标签格） ---------- */
.type-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.type-cell { background: #fff; padding: 26px 22px; transition: .25s; min-height: 152px; }
.type-cell:hover { background: var(--dark); }
.type-cell:hover h3 { color: var(--gold); }
.type-cell:hover p { color: #b9bfc4; }
.type-cell .num { font-size: 12px; font-weight: 800; color: var(--gold); letter-spacing: .1em; margin-bottom: 8px; }
.type-cell h3 { font-size: 16.5px; color: #2b2f33; margin-bottom: 8px; }
.type-cell p { font-size: 14px; color: var(--ink-2); margin: 0; }

/* ---------- 11. 品牌条 ---------- */
.brand-strip { display: grid; grid-template-columns: repeat(7, 1fr); gap: 12px; }
.brand-box {
  border: 1px solid var(--gold); padding: 18px 10px; text-align: center;
  font-weight: 700; color: #000; background: var(--gold); font-size: 15px; transition: .25s;
}
.brand-box:hover { border-color: var(--gold-2); color: #000; }
.brand-box small { display: block; font-size: 11px; font-weight: 500; color: rgba(38, 41, 44, .7); margin-top: 3px; }
.brand-box--main { background: var(--gold); color: #000; border-color: var(--gold); }
.brand-box--main small { color: rgba(38, 41, 44, .7); }
.brand-box--main:hover { color: #000; }

/* ---------- 12. 列表（新闻/知识风格：日期块 + 内容） ---------- */
.news-list { border-top: 1px solid var(--line); }
.news-list li { border-bottom: 1px solid var(--line); }
.news-list .item { display: flex; gap: 22px; align-items: flex-start; padding: 20px 4px; transition: .22s; }
.news-list a.item:hover { background: var(--bg-soft); padding-left: 12px; }
.news-list .date {
  flex: 0 0 76px; text-align: center; background: var(--bg-soft);
  border-top: 2px solid var(--gold); padding: 10px 4px;
}
.news-list .date b { display: block; font-size: 22px; color: #2b2f33; line-height: 1.1; }
.news-list .date span { font-size: 12px; color: var(--ink-3); }
.news-list .txt h3 { font-size: 16.5px; color: #2b2f33; margin-bottom: 6px; transition: .2s; }
.news-list a.item:hover .txt h3 { color: var(--gold-2); }
.news-list .txt p { font-size: 14px; color: var(--ink-2); margin: 0; }

/* ---------- 13. 图片墙（车间展示 → 仓储展示） ---------- */
.gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.gallery figure { margin: 0; position: relative; overflow: hidden; border-radius: var(--radius); }
.gallery img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; transition: transform .5s; }
.gallery figure:hover img { transform: scale(1.06); }
.gallery figcaption {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 12px 16px;
  background: linear-gradient(0deg, rgba(38, 41, 44, .88), transparent);
  color: #fff; font-size: 14.5px; font-weight: 600;
}

/* ---------- 14. 流程（模板风格步骤条） ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); }
.step { padding: 26px 22px; border-right: 1px solid var(--line); }
.step:last-child { border-right: 0; }
.step .no { font-size: 30px; font-weight: 800; color: rgba(255, 174, 0, .4); line-height: 1; margin-bottom: 10px; }
.step h3 { font-size: 16.5px; color: #2b2f33; margin-bottom: 8px; }
.step p { font-size: 14px; color: var(--ink-2); margin: 0; }

/* ---------- 15. 勾选列表 ---------- */
.check-list li {
  display: flex; gap: 12px; align-items: flex-start; padding: 10px 0;
  border-bottom: 1px dashed var(--line); font-size: 15px; color: var(--ink-2);
}
.check-list li:last-child { border-bottom: 0; }
.check-list svg { flex: 0 0 20px; margin-top: 5px; color: var(--gold); }

/* ---------- 16. 关于页 ---------- */
.prose { max-width: 880px; }
.prose p { font-size: 15.5px; color: var(--ink-2); text-align: justify; }
.prose h2 { font-size: 23px; color: #2b2f33; margin: 38px 0 16px; }
.prose strong { color: #2b2f33; }
.quote { border-left: 3px solid var(--gold); background: var(--gold-soft); padding: 20px 24px; margin: 26px 0; }
.quote p { margin: 0; color: #2b2f33; font-weight: 700; font-size: 16px; }

.timeline { position: relative; padding-left: 24px; }
.timeline::before { content: ""; position: absolute; left: 5px; top: 8px; bottom: 8px; width: 2px; background: var(--line-2); }
.timeline li { position: relative; padding-bottom: 22px; }
.timeline li::before {
  content: ""; position: absolute; left: -24px; top: 7px; width: 12px; height: 12px;
  border-radius: 50%; background: #fff; border: 3px solid var(--gold);
}
.timeline strong { display: block; color: #2b2f33; font-size: 16.5px; }
.timeline span { color: var(--ink-2); font-size: 14.5px; }

/* ---------- 17. 产品页 ---------- */
.prod-block { scroll-margin-top: calc(var(--header-h) + 20px); }
.prod-block + .prod-block { margin-top: 54px; }
.prod-head { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-bottom: 6px; }
.prod-head h2 { font-size: clamp(21px, 2.8vw, 27px); color: #2b2f33; }
.prod-head .badge {
  font-size: 12px; font-weight: 700; color: #26292c; background: var(--gold);
  padding: 3px 11px; border-radius: var(--radius);
}
.prod-desc { color: var(--ink-2); max-width: 800px; margin-bottom: 24px; }

.prod-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.prod-box { border: 1px solid var(--line); padding: 20px 18px; background: #fff; transition: .25s; height: 100%; }
.prod-box:hover { border-color: var(--gold); box-shadow: var(--shadow); }
.prod-box h3 { font-size: 16px; color: #2b2f33; margin-bottom: 8px; }
.prod-box p { font-size: 14px; color: var(--ink-2); margin-bottom: 10px; }
.prod-box__meta { font-size: 13px; color: var(--ink-3); border-top: 1px dashed var(--line); padding-top: 8px; }

.spec-table th, .spec-table td { border: 1px solid var(--line); padding: 11px 15px; font-size: 14.5px; text-align: left; }
.spec-table th { background: var(--bg-soft); color: #2b2f33; width: 28%; }
.spec-table td { color: var(--ink-2); }

/* ---------- 18. FAQ ---------- */
.faq { max-width: 900px; margin: 0 auto; }
.faq details { border: 1px solid var(--line); margin-bottom: -1px; background: #fff; }
.faq summary {
  cursor: pointer; padding: 16px 22px; font-weight: 700; color: #2b2f33;
  display: flex; justify-content: space-between; gap: 14px; align-items: center;
  list-style: none; min-height: 54px; font-size: 15.5px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--gold-2); font-size: 20px; font-weight: 700; }
.faq details[open] summary { border-bottom: 1px solid var(--line); background: var(--bg-soft); }
.faq details[open] summary::after { content: "−"; }
.faq__a { padding: 16px 22px; color: var(--ink-2); font-size: 15px; }
.faq__a p:last-child { margin-bottom: 0; }

/* ---------- 19. 联系页 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; align-items: start; }
.info-list li { display: flex; gap: 14px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.info-list li:last-child { border-bottom: 0; }
.info-list .ico {
  flex: 0 0 44px; height: 44px; background: var(--gold-soft); color: var(--gold-2);
  display: grid; place-items: center; border-radius: var(--radius);
}
.info-list .lbl { font-size: 12.5px; color: var(--ink-3); }
.info-list .val { font-size: 16.5px; font-weight: 700; color: #2b2f33; word-break: break-all; }
.info-list .val a:hover { color: var(--gold-2); }

.form-card { background: #fff; border: 1px solid var(--line); padding: 30px; box-shadow: var(--shadow); }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 13.5px; font-weight: 700; color: #2b2f33; margin-bottom: 6px; }
.field label .req { color: #d82e2e; }
.field input, .field select, .field textarea {
  width: 100%; min-height: 46px; padding: 11px 13px; border: 1px solid var(--line-2);
  border-radius: var(--radius); background: #fff; transition: .2s;
}
.field textarea { min-height: 112px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--gold); box-shadow: 0 0 0 3px rgba(255, 174, 0, .15);
}
.field .tip { font-size: 12.5px; color: var(--ink-3); margin-top: 5px; }
.form-note { font-size: 12.5px; color: var(--ink-3); margin-top: 10px; }
.form-msg {
  display: none; margin-top: 12px; padding: 11px 15px; border-radius: var(--radius);
  background: #eaf6ee; color: #1c6b3a; font-size: 14px; border: 1px solid #bfe3cd;
}
.form-msg.is-err { background: #fdeceb; color: #a32a1c; border-color: #f5c6c0; }

.mapbox { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; aspect-ratio: 16 / 9; background: var(--bg-soft); }
.mapbox img { width: 100%; height: 100%; object-fit: cover; }

/* ---------- 20. CTA ---------- */
.cta { background: var(--dark); color: #fff; text-align: center; padding: 58px 24px; position: relative; overflow: hidden; }
.cta::before {
  content: ""; position: absolute; left: 50%; top: 0; transform: translateX(-50%);
  width: 120px; height: 3px; background: var(--gold);
}
.cta h2 { font-size: clamp(21px, 2.8vw, 28px); margin-bottom: 10px; }
.cta p { color: #9aa0a5; margin-bottom: 22px; }
.cta__tel {
  display: inline-block; font-size: clamp(24px, 3.6vw, 34px); font-weight: 800;
  color: var(--gold); margin-bottom: 6px; letter-spacing: .02em;
}
.cta__tel:hover { color: #ffd066; }

/* 21a. CTA 左右布局 */
.cta { text-align: left; padding: 48px 24px; }
.cta::before { left: 24px; transform: none; }
.cta__text { flex: 1 1 auto; min-width: 0; }
.cta__qr {
  flex: 0 0 auto;
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  padding-left: 32px;
  border-left: 1px solid rgba(255, 255, 255, .12);
}
.cta__qr img {
  width: 180px; height: 180px;
  object-fit: contain;
  background: #fff;
  padding: 10px;
  border-radius: 8px;
  opacity: .6;
}
.cta__qr-tip { font-size: 13px; color: #b8bcc1; text-align: center; line-height: 1.6; }

/* 桌面端左右排 */
@media (min-width: 768px) {
  .cta { display: flex; align-items: center; gap: 40px; padding: 56px 40px; }
}

/* 移动端上下排，二维码置中 */
@media (max-width: 767px) {
  .cta { flex-direction: column; text-align: center; padding: 40px 20px; }
  .cta__qr { padding-left: 0; border-left: none; padding-top: 24px; border-top: 1px solid rgba(255, 255, 255, .12); }
  .cta__btns, .cta__hours { text-align: center; }
  .cta__btns { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
}
.cta__btns { display: flex; gap: 12px; flex-wrap: wrap; }
.cta__hours { margin-bottom: 22px; color: #9aa0a5; }

/* ---------- 21. 面包屑 / 页头 ---------- */
.crumbs { background: var(--bg-soft); border-bottom: 1px solid var(--line); font-size: 13px; }
.crumbs .wrap { padding: 13px 15px; display: flex; flex-wrap: wrap; gap: 8px; align-items: center; color: var(--ink-3); }
.crumbs a:hover { color: var(--gold-2); }
.crumbs .cur { color: #2b2f33; font-weight: 700; }

.page-head {
  background: var(--dark); color: #fff; padding: 46px 0 50px;
  border-bottom: 3px solid var(--gold); position: relative; overflow: hidden;
}
.page-head::after {
  content: ""; position: absolute; right: -60px; top: -60px; width: 300px; height: 300px;
  border-radius: 50%; background: rgba(255, 174, 0, .07);
}
.page-head .wrap { position: relative; z-index: 2; }
.page-head h1 { font-size: clamp(24px, 3.6vw, 34px); margin-bottom: 10px; }
.page-head p { color: #9aa0a5; margin: 0; max-width: 720px; font-size: 15px; }

/* ---------- 22. 页脚 ---------- */
.footer { background: #1e2124; color: #8b9196; padding: 52px 0 20px; font-size: 14px; }
.footer__grid { display: grid; grid-template-columns: 1.7fr 1fr 1fr 1.2fr; gap: 30px; }
.footer h3 { font-size: 15.5px; color: #fff; margin-bottom: 16px; position: relative; padding-bottom: 10px; }
.footer h3::after { content: ""; position: absolute; left: 0; bottom: 0; width: 28px; height: 2px; background: var(--gold); }
.footer a { color: #8b9196; }
.footer a:hover { color: var(--gold); }
.footer li { margin-bottom: 8px; }
.footer__about p { margin-bottom: 12px; }
.footer__bottom {
  border-top: 1px solid #2d3134; margin-top: 32px; padding-top: 18px;
  display: flex; flex-wrap: wrap; gap: 8px 20px; justify-content: space-between; font-size: 13px;
}
.footer__kw { margin-top: 16px; padding-top: 14px; border-top: 1px dashed #2d3134; font-size: 13px; line-height: 2; }
.footer__kw a { margin-right: 12px; white-space: nowrap; }

/* ---------- 23. 浮动条 ---------- */
.fab { position: fixed; right: 14px; bottom: 14px; z-index: 60; display: none; flex-direction: column; gap: 8px; }
.fab a { width: 54px; height: 54px; display: grid; place-items: center; box-shadow: 0 6px 16px rgba(0, 0, 0, .3); }
.fab a svg { width: 23px; height: 23px; }
.fab .fab__tel { background: var(--gold); color: #26292c; }
.fab .fab__top { background: var(--dark); color: #fff; }

/* ---------- 24. 动画 ---------- */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .55s ease, transform .55s ease; }
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}
.skip-link { position: absolute; left: -9999px; top: 0; background: var(--gold); color: #26292c; padding: 10px 18px; z-index: 100; }
.skip-link:focus { left: 0; }

/* ---------- 25. 响应式 ---------- */
@media (max-width: 1080px) {
  .type-grid, .prod-grid { grid-template-columns: repeat(3, 1fr); }
  .brand-strip { grid-template-columns: repeat(4, 1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  :root { --header-h: 68px; }
  .topbar .slogan { display: none; }
  .nav {
    position: fixed; inset: var(--header-h) 0 auto 0; background: #fff;
    flex-direction: column; align-items: stretch; padding: 10px 15px 18px; gap: 0;
    border-bottom: 1px solid var(--line); box-shadow: var(--shadow-lg);
    transform: translateY(-10px); opacity: 0; visibility: hidden; transition: .22s;
    max-height: calc(100vh - var(--header-h)); overflow-y: auto;
  }
  .nav.is-open { transform: none; opacity: 1; visibility: visible; }
  .nav a { padding: 13px 8px; font-size: 15.5px; }
  .nav a.is-active::after { display: none; }
  .nav__cta { text-align: center; margin: 8px 0 0; }
  .burger { display: block; }
  .grid--3, .grid--4, .grid--2, .type-grid, .prod-grid, .steps, .gallery { grid-template-columns: repeat(2, 1fr); }
  .step { border-bottom: 1px solid var(--line); }
  .hero-stats .wrap { grid-template-columns: repeat(3, 1fr); }
  .hero-stat { border-bottom: 1px solid rgba(38, 41, 44, .15); }
  .contact-grid { grid-template-columns: 1fr; gap: 30px; }
  .hero .wrap { padding: 60px 15px 70px; }
  .section { padding: 52px 0; }
  .fab { display: flex; }
}
@media (max-width: 640px) {
  .grid--3, .grid--4, .grid--2, .type-grid, .prod-grid, .steps, .brand-strip { grid-template-columns: repeat(2, 1fr); }
  .gallery { grid-template-columns: 1fr 1fr; }
  .footer__grid { grid-template-columns: 1fr; gap: 24px; }
  .hero-stats .wrap { grid-template-columns: repeat(2, 1fr); }
  .service-item { padding: 24px 18px; }
  .form-card { padding: 22px 18px; }
  .news-list .item { gap: 14px; }
  .news-list .date { flex: 0 0 62px; }
  .spec-table th { width: 38%; }
}
@media (max-width: 420px) {
  .grid--4, .type-grid, .prod-grid, .brand-strip { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: 1fr; }
}

@media print {
  .header, .topbar, .fab, .footer, .cta { display: none !important; }
}