/* ============================================
   惠州道声旗舰店 — 官网样式
   朴素实用的本地门店风格：白底、红色点缀、无花哨动效
   ============================================ */

:root {
  --red: #d5281e;
  --red-dark: #b01f13;
  --yellow: #f5c400;
  --text: #222222;
  --sub: #666666;
  --dim: #999999;
  --line: #e5e5e5;
  --bg: #ffffff;
  --bg-gray: #f7f7f7;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "微软雅黑", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
  font-size: 15px;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }

/* ---------- 标题 ---------- */
.sec { padding: 60px 0; }
.sec-head { text-align: center; margin-bottom: 36px; }
.sec-eyebrow { display: block; color: var(--red); font-size: 14px; font-weight: 600; margin-bottom: 8px; }
.sec-title { font-size: 26px; font-weight: 700; color: var(--text); margin-bottom: 10px; }
.sec-title em { font-style: normal; color: var(--red); }
.sec-desc { color: var(--sub); max-width: 620px; margin: 0 auto; font-size: 15px; }

/* ---------- 导航 ---------- */
.nav { position: sticky; top: 0; z-index: 100; background: #fff; border-bottom: 1px solid var(--line); }
.nav-inner { max-width: 1100px; margin: 0 auto; padding: 0 20px; height: 68px; display: flex; align-items: center; justify-content: space-between; }
.logo { display: flex; align-items: center; }
.logo-img { height: 48px; display: block; }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a { padding: 8px 14px; font-size: 15px; color: var(--text); }
.nav-links a:hover, .nav-links a.active { color: var(--red); }
.nav-tel {
  margin-left: 10px;
  padding: 8px 18px;
  background: var(--red);
  color: #fff !important;
  font-size: 14px !important;
  font-weight: 600;
}
.nav-tel:hover { background: var(--red-dark); color: #fff; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; background: none; border: none; padding: 6px; }
.nav-toggle span { width: 22px; height: 2px; background: var(--text); display: block; }

/* ---------- 按钮 ---------- */
.btn { display: inline-block; padding: 11px 30px; font-size: 15px; transition: background 0.2s; cursor: pointer; border: 1px solid transparent; }
.btn-red { background: var(--red); color: #fff; font-weight: 600; }
.btn-red:hover { background: var(--red-dark); }
.btn-ghost { border-color: var(--red); color: var(--red); }
.btn-ghost:hover { background: var(--red); color: #fff; }

/* ---------- 按钮光泽扫过 ---------- */
.btn-red, .nav-tel { position: relative; overflow: hidden; }
.btn-red::after, .nav-tel::after {
  content: ""; position: absolute; top: 0; left: -90%; width: 45%; height: 100%;
  background: linear-gradient(105deg, transparent, rgba(255, 255, 255, 0.5), transparent);
  transform: skewX(-22deg); transition: left 0.55s ease;
}
.btn-red:hover::after, .nav-tel:hover::after { left: 135%; }

/* ---------- 首页 Banner ---------- */
.hero { position: relative; overflow: hidden; background: var(--bg-gray); border-bottom: 1px solid var(--line); }
.hero::before, .hero::after { content: ""; position: absolute; border-radius: 50%; filter: blur(70px); pointer-events: none; }
.hero::before { width: 360px; height: 360px; background: rgba(213, 40, 30, 0.1); top: -130px; left: -90px; animation: blobA 10s ease-in-out infinite alternate; }
.hero::after { width: 300px; height: 300px; background: rgba(245, 196, 0, 0.18); bottom: -110px; right: -70px; animation: blobA 13s ease-in-out infinite alternate-reverse; }
@keyframes blobA { to { transform: translate(34px, 26px) scale(1.1); } }
.hero-inner { position: relative; z-index: 1; padding: 72px 20px; max-width: 860px; margin: 0 auto; text-align: center; }
.hero-eyebrow { color: var(--red); font-size: 15px; font-weight: 600; margin-bottom: 16px; }
.hero h1 { font-size: 34px; font-weight: 700; line-height: 1.4; margin-bottom: 18px; }
.hero h1 em { font-style: normal; color: var(--red); position: relative; white-space: nowrap; }
.hero h1 em::after {
  content: ""; position: absolute; left: -2px; right: -2px; bottom: 3px; height: 12px;
  background: rgba(245, 196, 0, 0.42); z-index: -1; border-radius: 3px;
  transform: scaleX(0); transform-origin: left center; animation: emIn 0.7s ease 0.95s forwards;
}
@keyframes emIn { to { transform: scaleX(1); } }
.hero p { color: var(--sub); max-width: 600px; margin: 0 auto 32px; font-size: 15px; }
.hero-btns { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ---------- 门店信息 ---------- */
.fact-card { border: 1px solid var(--line); background: #fff; padding: 26px 30px; margin: 40px auto 0; position: relative; z-index: 5; max-width: 1000px; box-shadow: 0 6px 24px rgba(0, 0, 0, 0.04); }
.fact-card h2 { font-size: 18px; margin-bottom: 14px; padding-bottom: 10px; border-bottom: 2px solid var(--red); display: inline-block; }
.fact-card h2 b { color: var(--red); }
.fact-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 6px 40px; }
.fact-grid div { font-size: 14px; color: var(--text); padding: 7px 0; display: grid; grid-template-columns: 96px 1fr; gap: 10px; align-items: baseline; }
.fact-grid span { color: var(--sub); }
.fact-grid b { color: var(--text); font-weight: 500; }

/* ---------- 内页横幅 ---------- */
.page-hero { padding: 48px 0 40px; text-align: center; background: var(--bg-gray); border-bottom: 1px solid var(--line); }
.page-hero h1 { font-size: 28px; font-weight: 700; margin: 8px 0 10px; }
.page-hero h1 em { font-style: normal; color: var(--red); }
.page-hero p { color: var(--sub); max-width: 600px; margin: 0 auto; font-size: 14px; }
.crumb { font-size: 13px; color: var(--dim); }
.crumb b { color: var(--red); font-weight: 400; }

/* ---------- 数据 ---------- */
.stats { border-bottom: 1px solid var(--line); background: #fff; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); padding: 30px 0; }
.stat { text-align: center; padding: 0 10px; }
.stat:not(:last-child) { border-right: 1px solid var(--line); }
.stat-num {
  font-size: 40px; font-weight: 700;
  background: linear-gradient(135deg, var(--red) 30%, #ff7a45);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.stat-num.done { animation: numPop 0.55s cubic-bezier(0.34, 1.56, 0.64, 1); }
@keyframes numPop { 0% { transform: scale(1); } 45% { transform: scale(1.22); } 100% { transform: scale(1); } }
.stat-num small { font-size: 16px; }
.stat-label { color: var(--sub); font-size: 13px; margin-top: 2px; }

/* ---------- 服务卡片 ---------- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card { background: #fff; border: 1px solid var(--line); padding: 28px 24px; }
.card:hover { border-color: var(--red); }
.card-icon {
  font-size: 21px; color: var(--red); margin-bottom: 14px;
  width: 48px; height: 48px; display: flex; align-items: center; justify-content: center;
  border: 1px solid rgba(213, 40, 30, 0.25); background: #fdf3f2;
  transition: background 0.25s, color 0.25s, border-color 0.25s;
}
.card:hover .card-icon { background: var(--red); border-color: var(--red); color: #fff; }
.card h3 { font-size: 17px; font-weight: 600; margin-bottom: 8px; }
.card p { color: var(--sub); font-size: 14px; }
.card .more { display: inline-block; margin-top: 12px; color: var(--red); font-size: 13px; }

/* ---------- 图文分栏 ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.split-img {
  aspect-ratio: 4 / 3;
  border: 1px solid var(--line);
  background: var(--bg-gray);
  display: flex; align-items: center; justify-content: center;
}
.split-img .glyph {
  font-size: 88px; font-weight: 700;
  background: linear-gradient(135deg, var(--red), var(--yellow));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.split h2 { font-size: 24px; font-weight: 700; margin-bottom: 14px; line-height: 1.5; }
.split h2 em { font-style: normal; color: var(--red); }
.split p { color: var(--sub); font-size: 15px; margin-bottom: 12px; }
.feature-list { margin-top: 18px; display: grid; gap: 10px; }
.feature-list li { display: flex; gap: 10px; align-items: flex-start; color: var(--text); font-size: 15px; }
.feature-list li::before { content: ""; width: 7px; height: 7px; background: var(--red); flex-shrink: 0; margin-top: 10px; }

/* ---------- 服务条目（服务页） ---------- */
.svc-block {
  display: grid; grid-template-columns: 70px 1fr 1.1fr; gap: 26px;
  padding: 30px 28px; border: 1px solid var(--line); background: #fff;
  margin-bottom: 16px; align-items: center;
}
.svc-block:hover { border-color: var(--red); }
.svc-no {
  font-size: 34px; font-weight: 700; line-height: 1;
  background: linear-gradient(180deg, #444, #ddd);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.svc-block h2 { font-size: 18px; margin-bottom: 4px; font-weight: 700; }
.svc-block h2 small { display: block; font-size: 12px; color: var(--dim); letter-spacing: 0.15em; margin-top: 2px; font-weight: 400; }
.svc-block > div:last-child { color: var(--sub); font-size: 14px; }
.svc-tags { margin-top: 10px; display: flex; flex-wrap: wrap; gap: 6px; }
.svc-tags span { font-size: 12px; color: var(--sub); background: var(--bg-gray); padding: 2px 10px; }

/* ---------- 案例 ---------- */
.case-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
a.case { display: block; color: inherit; text-decoration: none; }
.case { border: 1px solid var(--line); background: #fff; }
.case:hover { border-color: var(--red); }
.case-img {
  aspect-ratio: 16 / 10; display: flex; align-items: center; justify-content: center;
  font-size: 34px; color: #bbb; font-weight: 700; background: var(--bg-gray);
  border-bottom: 1px solid var(--line); position: relative;
}
.case-img::after { content: "示例图 · 替换实拍图"; position: absolute; bottom: 8px; right: 10px; font-size: 11px; color: #aaa; font-weight: 400; }
.case-body { padding: 20px 22px; }
.case-body h3 { font-size: 17px; margin-bottom: 6px; }
.case-body p { color: var(--sub); font-size: 14px; }
.case-meta { display: flex; gap: 8px; margin-top: 10px; flex-wrap: wrap; }
.case-meta span { font-size: 12px; color: var(--sub); background: var(--bg-gray); padding: 2px 10px; }

/* ---------- FAQ ---------- */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border: 1px solid var(--line); background: #fff; margin-bottom: 10px; }
.faq-q { padding: 16px 20px; display: flex; justify-content: space-between; align-items: center; cursor: pointer; font-weight: 600; font-size: 15px; gap: 14px; }
.faq-q::after { content: "+"; color: var(--red); font-size: 20px; flex-shrink: 0; }
.faq-item.open .faq-q { color: var(--red); }
.faq-item.open .faq-q::after { content: "−"; }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.faq-a > div { padding: 0 20px 16px; color: var(--sub); font-size: 14px; border-top: 1px solid var(--bg-gray); padding-top: 12px; }
.faq-item.open .faq-a { max-height: 400px; }

/* ---------- 联系 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.3fr; gap: 46px; }
.info-item { display: flex; gap: 14px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.info-item:first-child { padding-top: 0; }
.info-icon { width: 40px; height: 40px; border: 1px solid var(--line); background: var(--bg-gray); display: flex; align-items: center; justify-content: center; color: var(--red); font-size: 17px; flex-shrink: 0; }
.info-item h3 { font-size: 15px; margin-bottom: 2px; }
.info-item p { color: var(--sub); font-size: 14px; }
.form { border: 1px solid var(--line); background: #fff; padding: 34px 32px; }
.form h3 { font-size: 20px; margin-bottom: 4px; }
.form > p { color: var(--dim); font-size: 13px; margin-bottom: 22px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 13px; color: var(--sub); margin-bottom: 6px; }
.field input, .field select, .field textarea {
  width: 100%; background: #fff; border: 1px solid #ccc; color: var(--text);
  padding: 10px 12px; font-size: 14px; font-family: inherit; outline: none;
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--red); }
.field textarea { resize: vertical; min-height: 100px; }
.field select { appearance: none; }
.form .btn { width: 100%; border: none; }
.form-note { text-align: center; color: var(--dim); font-size: 12px; margin-top: 12px; }

/* ---------- 流程 ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.step { padding: 24px 20px; border: 1px solid var(--line); background: #fff; transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease; }
.step:hover { transform: translateY(-4px); border-color: var(--red); box-shadow: 0 10px 24px rgba(0, 0, 0, 0.07); }
.step-no { display: inline-flex; align-items: center; justify-content: center; width: 34px; height: 34px; border-radius: 50%; background: var(--red); color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 12px; }
.step h3 { font-size: 16px; margin-bottom: 6px; font-weight: 600; }
.step p { color: var(--sub); font-size: 13.5px; margin-top: 4px; }

/* ---------- CTA ---------- */
.cta-band { border-top: 1px solid var(--line); text-align: center; padding: 56px 20px; background: var(--bg-gray); }
.cta-band h2 { font-size: 24px; margin-bottom: 10px; }
.cta-band p { color: var(--sub); margin-bottom: 22px; }
.cta-band .tel { display: block; font-size: 32px; font-weight: 700; color: var(--red); margin-bottom: 24px; letter-spacing: 0.02em; animation: telGlow 2.4s ease-in-out infinite; }
@keyframes telGlow { 0%, 100% { text-shadow: 0 0 0 rgba(213, 40, 30, 0); } 50% { text-shadow: 0 6px 26px rgba(213, 40, 30, 0.4); } }

/* ---------- 页脚 ---------- */
.footer { border-top: 1px solid var(--line); background: #1f1f1f; padding: 50px 0 0; color: #bbb; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.2fr; gap: 36px; padding-bottom: 40px; }
.footer h4 { font-size: 14px; letter-spacing: 0.1em; color: #fff; margin-bottom: 16px; font-weight: 600; }
.footer-links li { margin-bottom: 9px; }
.footer-links a { color: #bbb; font-size: 14px; }
.footer-links a:hover { color: #fff; }
.footer-about p { color: #999; font-size: 13.5px; margin: 14px 0 0; max-width: 280px; }
.footer-about .logo-img { height: 44px; border-radius: 4px; }
.footer-contact li { color: #999; font-size: 13.5px; margin-bottom: 9px; }
.footer-bottom { border-top: 1px solid #333; padding: 18px 0; text-align: center; color: #777; font-size: 12.5px; }

/* ---------- JS特效：滚动淡入 ---------- */
.reveal { opacity: 0; transform: translateY(36px); transition: opacity 0.75s ease, transform 0.75s ease; }
.reveal.visible { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: 0.08s; }
.reveal.d2 { transition-delay: 0.16s; }
.reveal.d3 { transition-delay: 0.24s; }
.reveal.d4 { transition-delay: 0.32s; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- 导航滚动阴影 ---------- */
.nav { transition: box-shadow 0.25s ease; }
.nav.scrolled { box-shadow: 0 4px 18px rgba(0, 0, 0, 0.08); }

/* ---------- 卡片悬停（更强动效） ---------- */
.card, .case, .svc-block, .brand-item { transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease; }
.card:hover, .svc-block:hover { transform: translateY(-8px); box-shadow: 0 18px 38px rgba(0, 0, 0, 0.12); }
.case:hover { transform: translateY(-8px); box-shadow: 0 18px 38px rgba(0, 0, 0, 0.13); }
.brand-item:hover { transform: translateY(-8px); box-shadow: 0 18px 38px rgba(0, 0, 0, 0.12); }
.card-icon { transition: transform 0.3s ease; }
.card:hover .card-icon { transform: scale(1.2) rotate(-6deg); }

/* ---------- 数字滚动 ---------- */
.stat-num { transition: color 0.3s ease; }

/* ---------- 返回顶部 ---------- */
#backTop {
  position: fixed; right: 22px; bottom: 26px; z-index: 200;
  width: 44px; height: 44px; border: none; cursor: pointer;
  background: var(--red); color: #fff; font-size: 20px; line-height: 1;
  border-radius: 50%; box-shadow: 0 4px 14px rgba(213, 40, 30, 0.4);
  opacity: 0; visibility: hidden; transform: translateY(12px);
  transition: opacity 0.3s, transform 0.3s, visibility 0.3s, background 0.2s;
}
#backTop.show { opacity: 1; visibility: visible; transform: none; }
#backTop:hover { background: var(--red-dark); }

/* ---------- 合作品牌区 ---------- */
.brands-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.brand-item { border: 1px solid var(--line); background: #fff; padding: 26px 18px; text-align: center; }
.brand-item:hover { border-color: var(--red); transform: translateY(-4px); box-shadow: 0 10px 24px rgba(0, 0, 0, 0.07); }
.brand-item .flag { font-size: 12px; color: var(--red); letter-spacing: 0.1em; margin-bottom: 6px; }
.brand-item h3 { font-size: 19px; font-weight: 700; margin-bottom: 4px; }
.brand-item p { font-size: 12.5px; color: var(--dim); }

/* ---------- 发展历程时间轴 ---------- */
.timeline { max-width: 760px; margin: 0 auto; position: relative; padding-left: 30px; }
.timeline::before { content: ""; position: absolute; left: 8px; top: 8px; bottom: 8px; width: 2px; background: linear-gradient(180deg, var(--red), var(--line)); }
.tl-item { position: relative; padding: 0 0 30px 16px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before { content: ""; position: absolute; left: -30px; top: 6px; width: 12px; height: 12px; background: #fff; border: 3px solid var(--red); border-radius: 50%; box-shadow: 0 0 0 4px rgba(213, 40, 30, 0.12); }
.tl-item .tl-year { display: inline-block; font-size: 14px; font-weight: 700; color: #fff; background: var(--red); padding: 2px 12px; margin-bottom: 8px; }
.tl-item h3 { font-size: 16.5px; font-weight: 600; margin-bottom: 4px; }
.tl-item p { color: var(--sub); font-size: 14px; }

/* ---------- 顶部滚动进度条 ---------- */
#scrollProgress { position: fixed; top: 0; left: 0; height: 3px; width: 0; background: linear-gradient(90deg, var(--red), var(--yellow)); z-index: 300; }

/* ---------- Hero 入场动画 ---------- */
.hero-inner > * { opacity: 0; transform: translateY(22px); animation: heroIn 0.75s ease forwards; }
.hero-inner .hero-eyebrow { animation-delay: 0.15s; }
.hero-inner h1 { animation-delay: 0.3s; }
.hero-inner > p { animation-delay: 0.45s; }
.hero-inner .hero-btns { animation-delay: 0.6s; }
@keyframes heroIn { to { opacity: 1; transform: none; } }

/* ---------- 导航下划线动画 ---------- */
.nav-links a:not(.nav-tel) { position: relative; }
.nav-links a:not(.nav-tel)::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 3px; height: 2px;
  background: var(--red); transform: scaleX(0); transform-origin: left center; transition: transform 0.25s ease;
}
.nav-links a:not(.nav-tel):hover::after,
.nav-links a.active:not(.nav-tel)::after { transform: scaleX(1); }

/* ---------- 卡片顶部红线扫过 ---------- */
.card, .brand-item, .svc-block { position: relative; overflow: hidden; }
.card::before, .brand-item::before, .svc-block::before {
  content: ""; position: absolute; top: 0; left: 0; width: 0; height: 3px;
  background: linear-gradient(90deg, var(--red), var(--yellow)); transition: width 0.35s ease;
}
.card:hover::before, .brand-item:hover::before, .svc-block:hover::before { width: 100%; }

/* ---------- 信任跑马灯 ---------- */
.marquee { overflow: hidden; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #fff; padding: 18px 0; }
.marquee-track { display: flex; gap: 0; width: max-content; animation: marq 26s linear infinite; }
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-item { display: flex; align-items: center; gap: 10px; padding: 0 40px; white-space: nowrap; font-size: 15px; color: var(--sub); font-weight: 500; }
.marquee-item::before { content: ""; width: 6px; height: 6px; background: var(--red); flex-shrink: 0; }
.marquee-item b { color: var(--text); }
@keyframes marq { to { transform: translateX(-50%); } }

/* ---------- 价格参考表 ---------- */
.price-table { max-width: 900px; margin: 0 auto; border: 1px solid var(--line); background: #fff; }
.price-table table { width: 100%; border-collapse: collapse; table-layout: fixed; }
.price-table th:nth-child(1), .price-table td:nth-child(1) { width: 19%; }
.price-table th:nth-child(2), .price-table td:nth-child(2) { width: 39%; }
.price-table th:nth-child(3), .price-table td:nth-child(3) { width: 20%; }
.price-table th, .price-table td { padding: 14px 16px; text-align: left; font-size: 14px; border-bottom: 1px solid var(--line); word-break: break-word; }
.price-table th { background: var(--bg-gray); font-weight: 600; color: var(--text); }
.price-table tr:last-child td { border-bottom: none; }
.price-table td:first-child { font-weight: 600; color: var(--text); }
.price-table td:nth-child(3) { color: var(--red); font-weight: 700; }
.price-table tr { transition: background 0.2s; }
.price-table tbody tr:hover { background: #fdf5f4; }
.price-note { text-align: center; color: var(--dim); font-size: 13px; margin-top: 14px; }

/* ---------- 服务区域 ---------- */
.area-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; max-width: 900px; margin: 0 auto; }
.area-item { border: 1px solid var(--line); background: #fff; text-align: center; padding: 18px 10px; transition: transform 0.25s ease, border-color 0.25s ease; }
.area-item:hover { transform: translateY(-4px); border-color: var(--red); }
.area-item b { display: block; font-size: 16px; margin-bottom: 4px; }
.area-item span { font-size: 12.5px; color: var(--dim); }

/* ---------- 中屏导航防溢出 ---------- */
@media (max-width: 1100px) and (min-width: 961px) {
  .nav-links { gap: 0; }
  .nav-links a { padding: 8px 9px; font-size: 14px; }
  .nav-tel { margin-left: 4px; padding: 8px 12px; font-size: 13px !important; }
  .logo-img { height: 42px; }
}

/* ---------- 案例详情页 ---------- */
.article { max-width: 860px; }
.case-info-bar {
  display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line);
  background: #fff; box-shadow: 0 6px 24px rgba(0, 0, 0, 0.05); margin-bottom: 34px;
}
.case-info-bar > div { padding: 18px 20px; border-right: 1px solid var(--line); }
.case-info-bar > div:last-child { border-right: none; }
.case-info-bar span { display: block; color: var(--sub); font-size: 12.5px; margin-bottom: 5px; }
.case-info-bar b { font-size: 15px; color: var(--text); }
.case-info-bar > div:last-child b { color: var(--red); }
.article-body h2 {
  font-size: 20px; margin: 34px 0 14px; padding-left: 12px;
  border-left: 4px solid var(--red); line-height: 1.3;
}
.article-body h2:first-child { margin-top: 0; }
.article-body p { color: var(--text); font-size: 15px; line-height: 1.9; margin-bottom: 14px; }
.article-list { margin: 0 0 16px; padding-left: 0; list-style: none; }
.article-list li {
  color: var(--text); font-size: 14.5px; line-height: 1.85; padding: 6px 0 6px 18px; position: relative;
}
.article-list li::before { content: ""; position: absolute; left: 0; top: 15px; width: 7px; height: 7px; background: var(--red); }
.case-photos { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin: 18px 0; }
.case-photos:has(.case-photo:nth-child(3)) { grid-template-columns: repeat(2, 1fr); }
.case-photo {
  aspect-ratio: 4 / 3; border: 1px dashed var(--line); background: var(--bg-gray);
  display: flex; align-items: center; justify-content: center; text-align: center;
  color: #999; font-size: 13px; line-height: 1.7; padding: 10px;
}
.article-quote {
  margin: 20px 0; padding: 18px 22px; border-left: 4px solid var(--yellow);
  background: var(--bg-gray); color: var(--text); font-size: 14.5px; line-height: 1.9;
}
.article-cta { display: flex; gap: 14px; margin: 28px 0 6px; flex-wrap: wrap; }
.post-nav { display: flex; justify-content: space-between; gap: 16px; margin-top: 40px; padding-top: 22px; border-top: 1px solid var(--line); }
.post-nav a { color: var(--red); font-size: 14px; font-weight: 500; }
.post-nav a:hover { text-decoration: underline; }

/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2) { border-right: none; }
  .stat:nth-child(-n+2) { border-bottom: 1px solid var(--line); padding-bottom: 18px; }
  .stat:nth-child(n+3) { padding-top: 18px; }
  .split, .contact-grid { grid-template-columns: 1fr; gap: 30px; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .svc-block { grid-template-columns: 50px 1fr; }
  .svc-block > div:last-child { grid-column: 1 / -1; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .fact-grid { grid-template-columns: 1fr; }
  .brands-grid { grid-template-columns: repeat(2, 1fr); }
  .area-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .sec { padding: 44px 0; }
  .hero-inner { padding: 48px 20px; }
  .hero h1 { font-size: 27px; }
  .nav-links {
    position: fixed; top: 68px; right: 0; flex-direction: column;
    background: #fff; width: 200px; padding: 18px; gap: 4px;
    border: 1px solid var(--line); transform: translateX(100%);
    transition: transform 0.25s; align-items: flex-start;
  }
  .nav-links.open { transform: translateX(0); }
  .nav-toggle { display: flex; }
  .nav-tel { margin: 8px 0 0; text-align: center; width: 100%; }
  .cards, .case-grid, .form-row { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .hero-btns .btn { width: 100%; text-align: center; }
  .fact-card { margin-top: 24px; padding: 20px 18px; }
  .cta-band .tel { font-size: 26px; }
  .brands-grid { grid-template-columns: 1fr; }
  .area-grid { grid-template-columns: repeat(2, 1fr); }
  .price-table th, .price-table td { padding: 10px 10px; font-size: 13px; }
  .case-info-bar { grid-template-columns: 1fr 1fr; }
  .case-info-bar > div:nth-child(2n) { border-right: none; }
  .case-info-bar > div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .case-photos { grid-template-columns: 1fr; }
  .post-nav { flex-direction: column; gap: 10px; }
}

/* ---------- Hero 均衡器动画（音频主题） ---------- */
.eq { display: flex; gap: 7px; justify-content: center; align-items: flex-end; height: 58px; margin: 30px auto 0; }
.eq span {
  width: 7px; height: 100%; border-radius: 4px;
  background: linear-gradient(180deg, var(--yellow), var(--red));
  transform-origin: bottom; animation: eqBar 1.05s ease-in-out infinite;
  box-shadow: 0 0 12px rgba(213, 40, 30, 0.25);
}
.eq span:nth-child(1) { animation-delay: 0s; }
.eq span:nth-child(2) { animation-delay: 0.12s; }
.eq span:nth-child(3) { animation-delay: 0.24s; }
.eq span:nth-child(4) { animation-delay: 0.06s; }
.eq span:nth-child(5) { animation-delay: 0.3s; }
.eq span:nth-child(6) { animation-delay: 0.18s; }
.eq span:nth-child(7) { animation-delay: 0s; }
.eq span:nth-child(8) { animation-delay: 0.27s; }
.eq span:nth-child(9) { animation-delay: 0.09s; }
.eq span:nth-child(10) { animation-delay: 0.21s; }
.eq span:nth-child(11) { animation-delay: 0.03s; }
.eq span:nth-child(12) { animation-delay: 0.3s; }
.eq span:nth-child(13) { animation-delay: 0.15s; }
.eq span:nth-child(14) { animation-delay: 0.06s; }
.eq span:nth-child(15) { animation-delay: 0.24s; }
.eq span:nth-child(16) { animation-delay: 0.12s; }
.eq span:nth-child(17) { animation-delay: 0.02s; }
.eq span:nth-child(18) { animation-delay: 0.28s; }
@keyframes eqBar {
  0%, 100% { transform: scaleY(0.18); }
  50% { transform: scaleY(1); }
}
@media (prefers-reduced-motion: reduce) { .eq span { animation: none; transform: scaleY(0.5); } }

/* ---------- 标题红线生长（随滚动出现） ---------- */
.sec-head .sec-title { position: relative; padding-bottom: 14px; }
.sec-head .sec-title::after {
  content: ""; position: absolute; left: 50%; bottom: 0; transform: translateX(-50%);
  width: 0; height: 4px; border-radius: 2px;
  background: linear-gradient(90deg, var(--red), var(--yellow));
  transition: width 0.7s ease 0.25s;
}
.sec-head.reveal.visible .sec-title::after { width: 52px; }

/* ---------- CTA 脉冲按钮 ---------- */
@keyframes ctaPulse {
  0% { box-shadow: 0 0 0 0 rgba(213, 40, 30, 0.45); }
  70% { box-shadow: 0 0 0 16px rgba(213, 40, 30, 0); }
  100% { box-shadow: 0 0 0 0 rgba(213, 40, 30, 0); }
}
.cta-band .btn-red { animation: ctaPulse 2.2s infinite; }

/* ---------- 无障碍：减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .hero-inner > * { opacity: 1; transform: none; animation: none; }
  .marquee-track { animation: none; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero::before, .hero::after, .cta-band .tel, .cta-band .btn-red { animation: none; }
  .hero h1 em::after, .btn-red::after, .nav-tel::after { display: none; }
}