/* =========================================================
   米琪轩 · 南山区分站 (ns.miqixuan.cn)
   设计：暖金 + 深酒红 + 米白，体现餐饮温度 + 企业专业
   ========================================================= */

:root {
  --color-primary: #8b1e3f;        /* 深酒红 */
  --color-primary-dark: #6b1530;
  --color-accent: #c9a961;          /* 暖金 */
  --color-accent-light: #e3c98a;
  --color-bg: #fbf7f0;              /* 米白 */
  --color-bg-alt: #f4ecdf;
  --color-text: #2b2b2b;
  --color-text-muted: #6b6b6b;
  --color-border: #e8ddc9;
  --color-dark: #1f1a17;
  --color-white: #ffffff;
  --shadow-sm: 0 2px 8px rgba(31, 26, 23, 0.06);
  --shadow-md: 0 8px 24px rgba(31, 26, 23, 0.08);
  --shadow-lg: 0 16px 40px rgba(31, 26, 23, 0.12);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --container: 1200px;
  --header-h: 72px;
  --transition: all 0.3s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; transition: var(--transition); }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ============== 顶部电话条 ============== */
.topbar {
  background: var(--color-dark);
  color: var(--color-bg);
  font-size: 0.85rem;
  padding: 6px 0;
}
.topbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.topbar a { color: var(--color-accent-light); }
.topbar a:hover { color: var(--color-white); }
.topbar .topbar-right { display: flex; gap: 18px; }

/* ============== 主导航 ============== */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.header.scrolled { box-shadow: var(--shadow-md); }
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
}
.brand-logo {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-size: 1.3rem;
  font-weight: 700;
}
.brand-text { line-height: 1.2; }
.brand-text .brand-name { font-size: 1.15rem; color: var(--color-primary); }
.brand-text .brand-sub { font-size: 0.72rem; color: var(--color-text-muted); letter-spacing: 1px; }

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-menu a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text);
  position: relative;
  padding: 8px 0;
}
.nav-menu a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 2px;
  background: var(--color-primary);
  transition: var(--transition);
}
.nav-menu a:hover, .nav-menu a.active { color: var(--color-primary); }
.nav-menu a:hover::after, .nav-menu a.active::after { width: 100%; }

.nav-cta {
  background: var(--color-primary);
  color: var(--color-white) !important;
  padding: 10px 22px !important;
  border-radius: 999px;
  font-weight: 600;
}
.nav-cta:hover { background: var(--color-primary-dark); transform: translateY(-1px); }
.nav-cta::after { display: none; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.6rem;
  cursor: pointer;
  color: var(--color-primary);
}

/* ============== Hero 区 ============== */
.hero {
  position: relative;
  background:
    linear-gradient(135deg, rgba(31, 26, 23, 0.78), rgba(139, 30, 63, 0.55)),
    url("/images/a1.jpg") center/cover no-repeat;
  color: var(--color-white);
  padding: 100px 0 120px;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 20%, rgba(201, 169, 97, 0.25), transparent 50%);
}
.hero .container { position: relative; z-index: 2; max-width: 900px; }
.hero-badge {
  display: inline-block;
  background: rgba(201, 169, 97, 0.2);
  border: 1px solid var(--color-accent);
  color: var(--color-accent-light);
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 0.85rem;
  margin-bottom: 20px;
  letter-spacing: 1px;
}
.hero h1 {
  font-size: 2.8rem;
  line-height: 1.25;
  margin-bottom: 20px;
  font-weight: 800;
}
.hero h1 .accent { color: var(--color-accent-light); }
.hero-sub {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: 36px;
  max-width: 720px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
}
.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}
.btn-primary:hover { background: var(--color-primary-dark); border-color: var(--color-primary-dark); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-ghost {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.5);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.12); border-color: var(--color-white); }
.btn-gold {
  background: var(--color-accent);
  color: var(--color-dark);
  border-color: var(--color-accent);
}
.btn-gold:hover { background: var(--color-accent-light); transform: translateY(-2px); box-shadow: var(--shadow-md); }

.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 56px;
  flex-wrap: wrap;
}
.hero-stat .num {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--color-accent-light);
  line-height: 1;
}
.hero-stat .label { font-size: 0.9rem; color: rgba(255, 255, 255, 0.78); margin-top: 6px; }

/* ============== 通用 Section ============== */
section { padding: 80px 0; }
.section-head { text-align: center; max-width: 760px; margin: 0 auto 56px; }
.section-eyebrow {
  display: inline-block;
  color: var(--color-primary);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-head h2 {
  font-size: 2.1rem;
  color: var(--color-dark);
  font-weight: 800;
  margin-bottom: 16px;
}
.section-head p { color: var(--color-text-muted); font-size: 1.05rem; }
.divider {
  width: 60px; height: 3px;
  background: var(--color-accent);
  margin: 16px auto 0;
  border-radius: 2px;
}

/* ============== 关于我们（首页简版） ============== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.about-text h2 {
  font-size: 2rem;
  color: var(--color-dark);
  margin-bottom: 20px;
  font-weight: 800;
}
.about-text p { color: var(--color-text-muted); margin-bottom: 16px; }
.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 24px;
}
.about-feature {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.about-feature .ico {
  flex-shrink: 0;
  width: 36px; height: 36px;
  border-radius: 8px;
  background: var(--color-bg-alt);
  color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
}
.about-feature strong { display: block; color: var(--color-dark); margin-bottom: 2px; }
.about-feature span { font-size: 0.88rem; color: var(--color-text-muted); }
.about-visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4 / 3;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
}
.about-visual img { width: 100%; height: 100%; object-fit: cover; }

/* ============== 服务网格 ============== */
.services-bg { background: var(--color-bg-alt); }
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.service-card:hover::before { transform: scaleX(1); }
.service-ico {
  width: 56px; height: 56px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--color-bg-alt), var(--color-accent-light));
  color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 20px;
}
.service-card h3 {
  font-size: 1.25rem;
  color: var(--color-dark);
  margin-bottom: 10px;
  font-weight: 700;
}
.service-card p { color: var(--color-text-muted); font-size: 0.95rem; margin-bottom: 16px; }
.service-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; }
.service-tag {
  font-size: 0.75rem;
  padding: 3px 10px;
  background: var(--color-bg-alt);
  color: var(--color-primary);
  border-radius: 999px;
}
.service-link {
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.service-link:hover { gap: 8px; color: var(--color-primary-dark); }

/* ============== 服务区域 ============== */
.areas-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.area-chip {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  padding: 18px 16px;
  border-radius: var(--radius-sm);
  text-align: center;
  transition: var(--transition);
  cursor: default;
}
.area-chip:hover {
  border-color: var(--color-accent);
  background: var(--color-bg-alt);
  transform: translateY(-3px);
}
.area-chip .name { font-weight: 700; color: var(--color-dark); margin-bottom: 4px; }
.area-chip .desc { font-size: 0.8rem; color: var(--color-text-muted); }

/* ============== 案例展示 ============== */
.cases-bg { background: var(--color-dark); color: var(--color-bg); }
.cases-bg .section-head h2 { color: var(--color-white); }
.cases-bg .section-head p { color: rgba(251, 247, 240, 0.7); }
.cases-bg .section-eyebrow { color: var(--color-accent-light); }
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.case-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}
.case-card:hover { background: rgba(255, 255, 255, 0.07); transform: translateY(-4px); }
.case-img {
  aspect-ratio: 4 / 3;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  position: relative;
  overflow: hidden;
}
.case-img img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
.case-card:hover .case-img img { transform: scale(1.05); }
.case-body { padding: 20px 22px; }
.case-tag {
  display: inline-block;
  font-size: 0.72rem;
  color: var(--color-accent-light);
  border: 1px solid var(--color-accent);
  padding: 2px 10px;
  border-radius: 999px;
  margin-bottom: 10px;
}
.case-body h3 { color: var(--color-white); font-size: 1.05rem; margin-bottom: 8px; }
.case-body p { color: rgba(251, 247, 240, 0.65); font-size: 0.88rem; }

/* ============== 流程 ============== */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}
.process-step {
  text-align: center;
  position: relative;
}
.process-num {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: var(--color-white);
  border: 2px solid var(--color-accent);
  color: var(--color-primary);
  font-size: 1.5rem;
  font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 18px;
  position: relative;
  z-index: 2;
}
.process-step::before {
  content: "";
  position: absolute;
  top: 32px; left: -50%;
  width: 100%; height: 2px;
  background: var(--color-border);
  z-index: 1;
}
.process-step:first-child::before { display: none; }
.process-step h3 { color: var(--color-dark); margin-bottom: 8px; font-size: 1.05rem; }
.process-step p { color: var(--color-text-muted); font-size: 0.88rem; }

/* ============== CTA 条 ============== */
.cta-band {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: var(--color-white);
  padding: 56px 0;
  text-align: center;
}
.cta-band h2 { font-size: 1.9rem; margin-bottom: 12px; font-weight: 800; }
.cta-band p { color: rgba(255, 255, 255, 0.85); margin-bottom: 28px; }
.cta-band .hero-actions { justify-content: center; }

/* ============== 联系区块 ============== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}
.contact-info h3 { font-size: 1.4rem; color: var(--color-dark); margin-bottom: 20px; }
.contact-list { display: grid; gap: 16px; }
.contact-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 16px;
  background: var(--color-white);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}
.contact-item .ico {
  width: 40px; height: 40px;
  flex-shrink: 0;
  border-radius: 8px;
  background: var(--color-bg-alt);
  color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
}
.contact-item .label { font-size: 0.8rem; color: var(--color-text-muted); }
.contact-item .value { font-weight: 600; color: var(--color-dark); }
.contact-form {
  background: var(--color-white);
  padding: 32px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  font-size: 0.88rem;
  color: var(--color-dark);
  margin-bottom: 6px;
  font-weight: 600;
}
.form-control {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: inherit;
  background: var(--color-bg);
  transition: var(--transition);
}
.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  background: var(--color-white);
  box-shadow: 0 0 0 3px rgba(139, 30, 63, 0.1);
}
textarea.form-control { resize: vertical; min-height: 100px; }
.form-note { font-size: 0.8rem; color: var(--color-text-muted); margin-top: 8px; }

/* ============== Footer ============== */
.footer {
  background: var(--color-dark);
  color: rgba(251, 247, 240, 0.7);
  padding: 64px 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand .brand { margin-bottom: 16px; }
.footer-brand .brand-text .brand-name { color: var(--color-accent-light); }
.footer-brand p { font-size: 0.9rem; line-height: 1.7; }
.footer-col h4 {
  color: var(--color-white);
  font-size: 1rem;
  margin-bottom: 18px;
  font-weight: 600;
}
.footer-col ul { display: grid; gap: 10px; }
.footer-col a { font-size: 0.9rem; }
.footer-col a:hover { color: var(--color-accent-light); }
.footer-contact li { font-size: 0.9rem; margin-bottom: 10px; display: flex; gap: 8px; align-items: flex-start; }
.footer-contact .ico { color: var(--color-accent-light); }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 24px;
  text-align: center;
  font-size: 0.82rem;
  color: rgba(251, 247, 240, 0.5);
}
.footer-bottom a { color: rgba(251, 247, 240, 0.6); }
.footer-bottom a:hover { color: var(--color-accent-light); }
.footer-links { display: flex; justify-content: center; gap: 18px; margin-top: 8px; flex-wrap: wrap; }

/* ============== 内页 Hero ============== */
.page-hero {
  background:
    linear-gradient(135deg, rgba(31, 26, 23, 0.82), rgba(139, 30, 63, 0.62)),
    url("/images/a1.jpg") center/cover no-repeat;
  color: var(--color-white);
  padding: 80px 0 70px;
  text-align: center;
}
.page-hero h1 { font-size: 2.4rem; margin-bottom: 14px; font-weight: 800; }
.page-hero p { color: rgba(255, 255, 255, 0.85); max-width: 720px; margin: 0 auto; }
.breadcrumb {
  font-size: 0.85rem;
  margin-top: 18px;
  color: rgba(255, 255, 255, 0.7);
}
.breadcrumb a { color: var(--color-accent-light); }
.breadcrumb span { margin: 0 8px; }

/* ============== 业务详情页 ============== */
.service-detail-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 48px;
  align-items: start;
}
.service-detail-main h2 {
  font-size: 1.6rem;
  color: var(--color-dark);
  margin: 32px 0 16px;
  font-weight: 700;
  padding-left: 14px;
  border-left: 4px solid var(--color-accent);
}
.service-detail-main h2:first-child { margin-top: 0; }
.service-detail-main p { color: var(--color-text-muted); margin-bottom: 14px; }
.service-detail-main ul.check-list { display: grid; gap: 10px; margin: 16px 0; }
.service-detail-main ul.check-list li {
  position: relative;
  padding-left: 28px;
  color: var(--color-text);
}
.service-detail-main ul.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0; top: 0;
  width: 20px; height: 20px;
  background: var(--color-accent);
  color: var(--color-dark);
  border-radius: 50%;
  font-size: 0.75rem;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.service-aside {
  position: sticky;
  top: calc(var(--header-h) + 24px);
}
.aside-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
}
.aside-card h3 { font-size: 1.15rem; color: var(--color-dark); margin-bottom: 16px; }
.aside-card .price {
  font-size: 1.6rem;
  color: var(--color-primary);
  font-weight: 800;
  margin-bottom: 4px;
}
.aside-card .price-unit { font-size: 0.85rem; color: var(--color-text-muted); margin-bottom: 20px; }
.aside-features { display: grid; gap: 10px; margin-bottom: 20px; }
.aside-features li {
  display: flex; gap: 10px; align-items: center;
  font-size: 0.9rem;
  color: var(--color-text);
}
.aside-features li::before {
  content: "•";
  color: var(--color-accent);
  font-weight: 700;
}
.aside-cta { display: grid; gap: 10px; }
.aside-contact {
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  padding: 24px;
}
.aside-contact h4 { color: var(--color-dark); margin-bottom: 12px; font-size: 1rem; }
.aside-contact p { font-size: 0.9rem; margin-bottom: 8px; color: var(--color-text-muted); }
.aside-contact .phone { font-size: 1.4rem; color: var(--color-primary); font-weight: 800; }

/* 业务导航卡片 */
.service-nav {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 56px;
}
.service-nav-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 18px;
  transition: var(--transition);
}
.service-nav-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}
.service-nav-card .ico { font-size: 1.4rem; margin-bottom: 8px; }
.service-nav-card h4 { font-size: 0.95rem; color: var(--color-dark); margin-bottom: 4px; }
.service-nav-card p { font-size: 0.8rem; color: var(--color-text-muted); }

/* ============== 404 ============== */
.error-page {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 0;
}
.error-page .code {
  font-size: 6rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
}
.error-page h1 { font-size: 1.6rem; margin: 16px 0 12px; color: var(--color-dark); }
.error-page p { color: var(--color-text-muted); margin-bottom: 24px; }

/* ============== 响应式 ============== */
@media (max-width: 992px) {
  .hero h1 { font-size: 2.2rem; }
  .about-grid, .contact-grid, .service-detail-grid { grid-template-columns: 1fr; }
  .services-grid, .cases-grid { grid-template-columns: repeat(2, 1fr); }
  .areas-grid { grid-template-columns: repeat(3, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .process-step::before { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .service-aside { position: static; }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: var(--header-h); left: 0; right: 0;
    background: var(--color-white);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px;
    gap: 4px;
    box-shadow: var(--shadow-md);
    transform: translateY(-150%);
    transition: var(--transition);
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
  }
  .nav-menu.open { transform: translateY(0); }
  .nav-menu a { padding: 12px 0; border-bottom: 1px solid var(--color-border); }
  .nav-menu a::after { display: none; }
  .nav-cta { margin-top: 8px; text-align: center; }
  .nav-toggle { display: block; }
  .topbar .topbar-right { display: none; }
  section { padding: 56px 0; }
  .hero { padding: 64px 0 80px; }
  .hero h1 { font-size: 1.9rem; }
  .hero-sub { font-size: 1rem; }
  .hero-stats { gap: 24px; margin-top: 36px; }
  .hero-stat .num { font-size: 1.7rem; }
  .section-head h2 { font-size: 1.7rem; }
  .services-grid, .cases-grid, .areas-grid, .service-nav { grid-template-columns: 1fr 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .about-features { grid-template-columns: 1fr; }
  .page-hero h1 { font-size: 1.8rem; }
}

@media (max-width: 480px) {
  .services-grid, .cases-grid, .areas-grid, .process-grid, .service-nav { grid-template-columns: 1fr; }
  .hero h1 { font-size: 1.6rem; }
  .btn { padding: 12px 24px; font-size: 0.95rem; }
}

/* ============== FAQ 模块 ============== */
.faq-wrap { max-width: 880px; margin: 0 auto; }
.faq-item {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: var(--color-accent); box-shadow: var(--shadow-sm); }
.faq-item[open] { border-color: var(--color-accent); box-shadow: var(--shadow-md); }
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  font-weight: 600;
  color: var(--color-dark);
  font-size: 1.02rem;
  list-style: none;
}
.faq-q::-webkit-details-marker { display: none; }
.faq-q::before {
  content: "Q";
  flex-shrink: 0;
  width: 28px; height: 28px;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
}
.faq-q .ico {
  flex-shrink: 0;
  color: var(--color-accent);
  font-size: 1.3rem;
  transition: var(--transition);
}
.faq-item[open] .faq-q .ico { transform: rotate(45deg); }
.faq-a {
  padding: 0 24px 22px 68px;
  color: var(--color-text-muted);
  line-height: 1.8;
  font-size: 0.96rem;
}
.faq-a::before {
  content: "A";
  display: inline-block;
  width: 24px; height: 24px;
  background: var(--color-accent);
  color: var(--color-dark);
  border-radius: 50%;
  text-align: center;
  line-height: 24px;
  font-size: 0.75rem;
  font-weight: 700;
  margin-right: 8px;
  vertical-align: middle;
}

/* ============== 动画 ============== */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.reveal { opacity: 0; }
.reveal.visible { animation: fadeUp 0.7s ease forwards; }